* tracer.c (tracer): Don't take FLAGS argument. Assert we are

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2007-03-23  Steven Bosscher  <steven@gcc.gnu.org>

        * tracer.c (tracer): Don't take FLAGS argument.  Assert we are
        in cfglayout mode.  Don't go into and out of cfglayout mode.
        Link the blocks in the order of the constructed traces.
        (rest_of_handle_tracer): Adjust call to tracer.
        * loop-init.c (rtl_loop_init): Assert we are in cfglayout mode.
        Don't go into cfglayout mode.
        (rtl_loop_done): Don't go out of cfglayout mode.
        * cfglayout.c (relink_block_chain): New function, split out from...
        (fixup_reorder_chain): ...here.  Remove redundant checking.
        (cfg_layout_finalize): Don't clear the header, footer, and aux
        fields here, move the code to do so to relink_block_chain.  Likewise
        for free_original_copy_tables.
        * rtl.h (tracer): Update prototype.
        * bb-reorder.c (reorder_basic_blocks): Don't take FLAGS argument.
        Assert we are in cfglayout mode.  Don't go into and out of cfglayout
        mode.  Use relink_block_chain to serialize the CFG according to the
        new basic block order.  Move targetm.cannot_modify_jumps_p check from
        here...
        (gate_handle_reorder_blocks): ...to here.
        (duplicate_computed_gotos): Move targetm.cannot_modify_jumps_p check
        from here...
        (gate_duplicate_computed_gotos): ...to here.
        (rest_of_handle_reorder_blocks): Don't see if anything has changed,
        something always changes when going into and out of cfglayout mode.
        Perform an expensive cfg cleanup while going into cfglayout mode.
        Always update liveness information on HAVE_conditional_execution
        targets.  Reserialize the basic blocks and go out of cfglayout mode.
        * reg-stack.c: Include cfglayout.h.
        (rest_of_handle_stack_regs): Go into and out of cfglayout mode around
        the call to reorder_basic_blocks.
        * basic-block.h (reorder_basic_blocks): Update prototype.
        (relink_block_chain): New prototype.
        * passes.c (pass_outof_cfg_layout_mode): Move after cse2.

Index: tracer.c
===================================================================
--- tracer.c    (revision 122857)
+++ tracer.c    (working copy)
@@ -357,24 +357,25 @@ layout_superblocks (void)
     }
 }
 
-/* Main entry point to this file.  FLAGS is the set of flags to pass
-   to cfg_layout_initialize().  */
+/* Main entry point to this file.  */
 
 void
-tracer (unsigned int flags)
+tracer (void)
 {
+  gcc_assert (current_ir_type () == IR_RTL_CFGLAYOUT);
+
   if (n_basic_blocks <= NUM_FIXED_BLOCKS + 1)
     return;
 
-  cfg_layout_initialize (flags);
   mark_dfs_back_edges ();
   if (dump_file)
     dump_flow_info (dump_file, dump_flags);
   tail_duplicate ();
   layout_superblocks ();
+  relink_block_chain (/*stay_in_cfglayout_mode=*/true);
+  
   if (dump_file)
     dump_flow_info (dump_file, dump_flags);
-  cfg_layout_finalize ();
 
   /* Merge basic blocks in duplicated traces.  */
   cleanup_cfg (CLEANUP_EXPENSIVE);
@@ -392,7 +393,7 @@ rest_of_handle_tracer (void)
 {
   if (dump_file)
     dump_flow_info (dump_file, dump_flags);
-  tracer (0);
+  tracer ();
   reg_scan (get_insns (), max_reg_num ());
   return 0;
 }
Index: loop-init.c
===================================================================
--- loop-init.c (revision 122857)
+++ loop-init.c (working copy)
@@ -171,12 +171,11 @@ struct tree_opt_pass pass_loop2 =
 static unsigned int
 rtl_loop_init (void)
 {
+  gcc_assert (current_ir_type () == IR_RTL_CFGLAYOUT);
+  
   if (dump_file)
     dump_flow_info (dump_file, dump_flags);
 
-  /* Initialize structures for layout changes.  */
-  cfg_layout_initialize (0);
-
   loop_optimizer_init (LOOPS_NORMAL);
   return 0;
 }
@@ -204,17 +203,9 @@ struct tree_opt_pass pass_rtl_loop_init 
 static unsigned int
 rtl_loop_done (void)
 {
-  basic_block bb;
-
   loop_optimizer_finalize ();
   free_dominance_info (CDI_DOMINATORS);
 
-  /* Finalize layout changes.  */
-  FOR_EACH_BB (bb)
-    if (bb->next_bb != EXIT_BLOCK_PTR)
-      bb->aux = bb->next_bb;
-  cfg_layout_finalize ();
-
   cleanup_cfg (CLEANUP_EXPENSIVE);
   delete_trivially_dead_insns (get_insns (), max_reg_num ());
   reg_scan (get_insns (), max_reg_num ());
Index: cfglayout.c
===================================================================
--- cfglayout.c (revision 122858)
+++ cfglayout.c (working copy)
@@ -634,13 +634,83 @@ reemit_insn_block_notes (void)
   reorder_blocks ();
 }
 \f
+
+/* Link the basic blocks in the correct order, compacting the basic
+   block queue while at it.  This also clears the visited flag on
+   all basic blocks.  If STAY_IN_CFGLAYOUT_MODE is false, this function
+   also clears the basic block header and footer fields.
+
+   This function is usually called after a pass (e.g. tracer) finishes
+   some transformations while in cfglayout mode.  The required sequence
+   of the basic blocks is in a linked list along the bb->aux field.
+   This functions re-links the basic block prev_bb and next_bb pointers
+   accordingly, and it compacts and renumbers the blocks.  */
+
+void
+relink_block_chain (bool stay_in_cfglayout_mode)
+{
+  basic_block bb, prev_bb;
+  int index;
+
+  /* Maybe dump the re-ordered sequence.  */
+  if (dump_file)
+    {
+      fprintf (dump_file, "Reordered sequence:\n");
+      for (bb = ENTRY_BLOCK_PTR->next_bb, index = NUM_FIXED_BLOCKS;
+          bb;
+          bb = bb->aux, index++)
+       {
+         fprintf (dump_file, " %i ", index);
+         if (get_bb_original (bb))
+           fprintf (dump_file, "duplicate of %i ",
+                    get_bb_original (bb)->index);
+         else if (forwarder_block_p (bb)
+                  && !LABEL_P (BB_HEAD (bb)))
+           fprintf (dump_file, "compensation ");
+         else
+           fprintf (dump_file, "bb %i ", bb->index);
+         fprintf (dump_file, " [%i]\n", bb->frequency);
+       }
+    }
+
+  /* Now reorder the blocks.  */
+  prev_bb = ENTRY_BLOCK_PTR;
+  bb = ENTRY_BLOCK_PTR->next_bb;
+  for (; bb; prev_bb = bb, bb = bb->aux)
+    {
+      bb->prev_bb = prev_bb;
+      prev_bb->next_bb = bb;
+    }
+  prev_bb->next_bb = EXIT_BLOCK_PTR;
+  EXIT_BLOCK_PTR->prev_bb = prev_bb;
+
+  /* Then, clean up the aux and visited fields.  */
+  FOR_ALL_BB (bb)
+    {
+      bb->aux = NULL;
+      bb->il.rtl->visited = 0;
+      if (!stay_in_cfglayout_mode)
+       bb->il.rtl->header = bb->il.rtl->footer = NULL;
+    }
+
+  /* Maybe reset the original copy tables, they are not valid anymore
+     when we renumber the basic blocks in compact_blocks.  If we are
+     are going out of cfglayout mode, don't re-allocate the tables.  */
+  free_original_copy_tables ();
+  if (stay_in_cfglayout_mode)
+    initialize_original_copy_tables ();
+  
+  /* Finally, put basic_block_info in the new order.  */
+  compact_blocks ();
+}
+\f
+
 /* Given a reorder chain, rearrange the code to match.  */
 
 static void
 fixup_reorder_chain (void)
 {
-  basic_block bb, prev_bb;
-  int index;
+  basic_block bb;
   rtx insn = NULL;
 
   if (cfg_layout_function_header)
@@ -654,9 +724,7 @@ fixup_reorder_chain (void)
   /* First do the bulk reordering -- rechain the blocks without regard to
      the needed changes to jumps and labels.  */
 
-  for (bb = ENTRY_BLOCK_PTR->next_bb, index = NUM_FIXED_BLOCKS;
-       bb != 0;
-       bb = bb->aux, index++)
+  for (bb = ENTRY_BLOCK_PTR->next_bb; bb; bb = bb->aux)
     {
       if (bb->il.rtl->header)
        {
@@ -684,8 +752,6 @@ fixup_reorder_chain (void)
        }
     }
 
-  gcc_assert (index == n_basic_blocks);
-
   NEXT_INSN (insn) = cfg_layout_function_footer;
   if (cfg_layout_function_footer)
     PREV_INSN (cfg_layout_function_footer) = insn;
@@ -838,42 +904,7 @@ fixup_reorder_chain (void)
        }
     }
 
-  /* Put basic_block_info in the new order.  */
-
-  if (dump_file)
-    {
-      fprintf (dump_file, "Reordered sequence:\n");
-      for (bb = ENTRY_BLOCK_PTR->next_bb, index = NUM_FIXED_BLOCKS;
-          bb;
-          bb = bb->aux, index++)
-       {
-         fprintf (dump_file, " %i ", index);
-         if (get_bb_original (bb))
-           fprintf (dump_file, "duplicate of %i ",
-                    get_bb_original (bb)->index);
-         else if (forwarder_block_p (bb)
-                  && !LABEL_P (BB_HEAD (bb)))
-           fprintf (dump_file, "compensation ");
-         else
-           fprintf (dump_file, "bb %i ", bb->index);
-         fprintf (dump_file, " [%i]\n", bb->frequency);
-       }
-    }
-
-  prev_bb = ENTRY_BLOCK_PTR;
-  bb = ENTRY_BLOCK_PTR->next_bb;
-  index = NUM_FIXED_BLOCKS;
-
-  for (; bb; prev_bb = bb, bb = bb->aux, index ++)
-    {
-      bb->index = index;
-      SET_BASIC_BLOCK (index, bb);
-
-      bb->prev_bb = prev_bb;
-      prev_bb->next_bb = bb;
-    }
-  prev_bb->next_bb = EXIT_BLOCK_PTR;
-  EXIT_BLOCK_PTR->prev_bb = prev_bb;
+  relink_block_chain (/*stay_in_cfglayout_mode=*/false);
 
   /* Annoying special case - jump around dead jumptables left in the code.  */
   FOR_EACH_BB (bb)
@@ -1179,8 +1210,6 @@ break_superblocks (void)
 void
 cfg_layout_finalize (void)
 {
-  basic_block bb;
-
 #ifdef ENABLE_CHECKING
   verify_flow_info ();
 #endif
@@ -1195,19 +1224,8 @@ cfg_layout_finalize (void)
 
 #ifdef ENABLE_CHECKING
   verify_insn_chain ();
-#endif
-  FOR_BB_BETWEEN (bb, ENTRY_BLOCK_PTR, NULL, next_bb)
-  {
-    bb->il.rtl->header = bb->il.rtl->footer = NULL;
-    bb->aux = NULL;
-    bb->il.rtl->visited = 0;
-  }
-
-#ifdef ENABLE_CHECKING
   verify_flow_info ();
 #endif
-
-  free_original_copy_tables ();
 }
 
 /* Checks whether all N blocks in BBS array can be copied.  */
Index: rtl.h
===================================================================
--- rtl.h       (revision 122857)
+++ rtl.h       (working copy)
@@ -2259,7 +2259,7 @@ extern bool expensive_function_p (int);
 /* In cfgexpand.c */
 extern void add_reg_br_prob_note (rtx last, int probability);
 /* In tracer.c */
-extern void tracer (unsigned int);
+extern void tracer (void);
 
 /* In var-tracking.c */
 extern unsigned int variable_tracking_main (void);
Index: bb-reorder.c
===================================================================
--- bb-reorder.c        (revision 122857)
+++ bb-reorder.c        (working copy)
@@ -1889,20 +1889,17 @@ verify_hot_cold_block_grouping (void)
    the set of flags to pass to cfg_layout_initialize().  */
 
 void
-reorder_basic_blocks (unsigned int flags)
+reorder_basic_blocks (void)
 {
   int n_traces;
   int i;
   struct trace *traces;
 
-  if (n_basic_blocks <= NUM_FIXED_BLOCKS + 1)
-    return;
+  gcc_assert (current_ir_type () == IR_RTL_CFGLAYOUT);
 
-  if (targetm.cannot_modify_jumps_p ())
+  if (n_basic_blocks <= NUM_FIXED_BLOCKS + 1)
     return;
 
-  cfg_layout_initialize (flags);
-
   set_edge_can_fallthru_flag ();
   mark_dfs_back_edges ();
 
@@ -1930,10 +1927,11 @@ reorder_basic_blocks (unsigned int flags
   FREE (traces);
   FREE (bbd);
 
+  relink_block_chain (/*stay_in_cfglayout_mode=*/true);
+
   if (dump_file)
     dump_flow_info (dump_file, dump_flags);
 
-  cfg_layout_finalize ();
   if (flag_reorder_blocks_and_partition)
     verify_hot_cold_block_grouping ();
 }
@@ -1976,6 +1974,8 @@ insert_section_boundary_note (void)
 static bool
 gate_duplicate_computed_gotos (void)
 {
+  if (targetm.cannot_modify_jumps_p ())
+    return false;
   return (optimize > 0 && flag_expensive_optimizations && !optimize_size);
 }
 
@@ -1990,9 +1990,6 @@ duplicate_computed_gotos (void)
   if (n_basic_blocks <= NUM_FIXED_BLOCKS + 1)
     return 0;
 
-  if (targetm.cannot_modify_jumps_p ())
-    return 0;
-
   cfg_layout_initialize (0);
 
   /* We are estimating the length of uncond jump insn only once
@@ -2198,6 +2195,8 @@ partition_hot_cold_basic_blocks (void)
 static bool
 gate_handle_reorder_blocks (void)
 {
+  if (targetm.cannot_modify_jumps_p ())
+    return false;
   return (optimize > 0);
 }
 
@@ -2206,34 +2205,39 @@ gate_handle_reorder_blocks (void)
 static unsigned int
 rest_of_handle_reorder_blocks (void)
 {
-  bool changed;
   unsigned int liveness_flags;
+  basic_block bb;
 
   /* Last attempt to optimize CFG, as scheduling, peepholing and insn
      splitting possibly introduced more crossjumping opportunities.  */
   liveness_flags = (!HAVE_conditional_execution ? CLEANUP_UPDATE_LIFE : 0);
-  changed = cleanup_cfg (CLEANUP_EXPENSIVE | liveness_flags);
+  cfg_layout_initialize (CLEANUP_EXPENSIVE | liveness_flags);
 
   if (flag_sched2_use_traces && flag_schedule_insns_after_reload)
     {
       timevar_push (TV_TRACER);
-      tracer (liveness_flags);
+      tracer ();
       timevar_pop (TV_TRACER);
     }
 
   if (flag_reorder_blocks || flag_reorder_blocks_and_partition)
-    reorder_basic_blocks (liveness_flags);
+    reorder_basic_blocks ();
   if (flag_reorder_blocks || flag_reorder_blocks_and_partition
       || (flag_sched2_use_traces && flag_schedule_insns_after_reload))
-    changed |= cleanup_cfg (CLEANUP_EXPENSIVE | liveness_flags);
+    cleanup_cfg (CLEANUP_EXPENSIVE | liveness_flags);
 
   /* On conditional execution targets we can not update the life cheaply, so
      we deffer the updating to after both cleanups.  This may lose some cases
      but should not be terribly bad.  */
-  if (changed && HAVE_conditional_execution)
+  if (HAVE_conditional_execution)
     update_life_info (NULL, UPDATE_LIFE_GLOBAL_RM_NOTES,
                      PROP_DEATH_NOTES);
 
+  FOR_EACH_BB (bb)
+    if (bb->next_bb != EXIT_BLOCK_PTR)
+      bb->aux = bb->next_bb;
+  cfg_layout_finalize ();
+
   /* Add NOTE_INSN_SWITCH_TEXT_SECTIONS notes.  */
   insert_section_boundary_note ();
   return 0;
Index: reg-stack.c
===================================================================
--- reg-stack.c (revision 122857)
+++ reg-stack.c (working copy)
@@ -167,6 +167,7 @@
 #include "recog.h"
 #include "output.h"
 #include "basic-block.h"
+#include "cfglayout.h"
 #include "varray.h"
 #include "reload.h"
 #include "ggc.h"
@@ -3197,8 +3198,17 @@ rest_of_handle_stack_regs (void)
                        | (flag_crossjumping ? CLEANUP_CROSSJUMP : 0))
           && (flag_reorder_blocks || flag_reorder_blocks_and_partition))
         {
-          reorder_basic_blocks (0);
-          cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_POST_REGSTACK);
+         basic_block bb;
+
+         cfg_layout_initialize (0);
+
+         reorder_basic_blocks ();
+         cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_POST_REGSTACK);
+
+         FOR_EACH_BB (bb)
+           if (bb->next_bb != EXIT_BLOCK_PTR)
+             bb->aux = bb->next_bb;
+         cfg_layout_finalize ();
         }
     }
   else 
Index: basic-block.h
===================================================================
--- basic-block.h       (revision 122857)
+++ basic-block.h       (working copy)
@@ -929,7 +929,7 @@ extern bool control_flow_insn_p (rtx);
 extern rtx get_last_bb_insn (basic_block);
 
 /* In bb-reorder.c */
-extern void reorder_basic_blocks (unsigned int);
+extern void reorder_basic_blocks (void);
 
 /* In dominance.c */
 
@@ -976,6 +976,7 @@ unsigned bb_dom_dfs_out (enum cdi_direct
 
 extern edge try_redirect_by_replacing_jump (edge, basic_block, bool);
 extern void break_superblocks (void);
+extern void relink_block_chain (bool);
 extern void check_bb_profile (basic_block, FILE *);
 extern void update_bb_profile_for_threading (basic_block, int, gcov_type, edge);
 extern void init_rtl_bb_info (basic_block);
Index: passes.c
===================================================================
--- passes.c    (revision 122858)
+++ passes.c    (working copy)
@@ -666,7 +666,6 @@ init_optimization_passes (void)
       NEXT_PASS (pass_gcse);
       NEXT_PASS (pass_jump_bypass);
       NEXT_PASS (pass_rtl_ifcvt);
-      NEXT_PASS (pass_outof_cfg_layout_mode);
       NEXT_PASS (pass_tracer);
       /* Perform loop optimizations.  It might be better to do them a bit
         sooner, but we want the profile feedback to work more
@@ -685,6 +684,7 @@ init_optimization_passes (void)
       NEXT_PASS (pass_web);
       NEXT_PASS (pass_cse2);
       NEXT_PASS (pass_rtl_fwprop_addr);
+      NEXT_PASS (pass_outof_cfg_layout_mode);
       NEXT_PASS (pass_life);
       NEXT_PASS (pass_combine);
       NEXT_PASS (pass_if_after_combine);

2007-03-23  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.md (type, hazard, *movdi_32bit,
        *movdi_gp32_fp64, *movdi_64bit, *movsi_internal, movcc,
        *movhi_internal, *movqi_internal, *movsf_hardfloat,
        *movdf_hardfloat_64bit, *movdf_hardfloat_32bit, *movdf_softfloat,
        movv2sf_hardfloat_64bit, load_df_low, load_df_high, store_df_high,
        mthc1, mfhc1): Change xfer instruction type to mfc and mtc, as
        applicable.
        (movcc): Change first xfer to multi.
        * config/mips/24k.md, config/mips/4100.md, config/mips/4300.md,
        config/mips/5000.md, config/mips/5400.md, config/mips/5500.md,
        config/mips/5k.md, config/mips/7000.md, config/mips/9000.md,
        config/mips/generic.md: Change reservations using "xfer" to use
        "mfc,mtc".
        * config/mips/sb1.md (ir_sb1_mtxfer): Use "mtc" instead of
        using match_operand.
        (ir_sb1_mfxfer): Use "mfc" instead of using match_operand.
        * config/mips/sr71k.md (ir_sr70_xfer_from): Use "mfc" instead of
        examining mode.
        (ir_sr70_xfer_to): Use "mtc" instead of examining mode.

2007-03-22  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c: Remove unnecessary function declarations.
        Move targetm definition, and all related macros, to the end of
        the file.  Resort some functions to put definitions before uses.
        (ix86_attribute_table): Make static.  Move to end of file.
        (ix86_gimplify_va_arg): Make static.

2007-03-22  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_function_regparm): Early exit for 64-bit;
        don't increase local_regparm with force_align_arg_pointer check.
        (ix86_function_sseregparm): Assert 32-bit.
        (type_has_variadic_args_p): New.
        (ix86_return_pops_args): Early exit for 64-bit.  Reindent; use
        type_has_variadic_args_p.
        (ix86_function_arg_regno_p): Use == 0 instead of ! test for eax.
        (init_cumulative_args): Remove TARGET_DEBUG_ARG.  Remove zero_cum;
        use memset instead.  Do maybe_vaarg check first; skip attribute
        tests if true; skip attribute tests for 64-bit.
        (construct_container): Remove TARGET_DEBUG_ARG.
        (function_arg_advance_32, function_arg_advance_64): Split out ...
        (function_arg_advance): ... from here.
        (function_arg_32, function_arg_64): Split out ...
        (function_arg): ... from here.
        (ix86_pass_by_reference): Tidy.
        (ix86_function_value_regno_p): Rearrange w/ switch on regno.
        (function_value_32): New, from parts of ix86_function_value
        and ix86_value_regno.
        (function_value_64): New, from parts of ix86_function_value
        and ix86_libcall_value.
        (ix86_function_value_1): New.
        (ix86_function_value, ix86_libcall_value): Use it.
        (return_in_memory_32, return_in_memory_64): Split out ...
        (ix86_return_in_memory): ... from here.
        (ix86_struct_value_rtx): Skip for 64-bit.
        (ix86_libcall_value, ix86_value_regno): Remove.
        (setup_incoming_varargs_64): Split out ...
        (ix86_setup_incoming_varargs): ... from here.
        (ix86_va_start): Remove TARGET_DEBUG_ARG.
        (legitimate_address_p, legitimize_address): Remove TARGET_DEBUG_ADDR.
        * config/i386/i386-protos.h (ix86_function_value): Remove.
        * config/i386/i386.opt (TARGET_DEBUG_ADDR, TARGET_DEBUG_ARG): Remove.

2007-03-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR other/23572
        * c-lex.c (interpret_float): On overflow, emit pedantic warning if
        infinities not supported, otherwise emit warning if -Woverflow. On
        underflow, emit warning if -Woverflow.
        * real.c (real_from_string): Return -1 if underflow, +1 if overflow
        and 0 otherwise.
        * real.h (real_from_string): Update declaration
        
2007-03-22  Kai Tietz  <kai.tietz@onevision.com>
            Richard Henderson  <rth@redhat.com>

        * defaults.h (OUTGOING_REG_PARM_STACK_SPACE): Provide default.
        * calls.c (compute_argument_block_size, expand_call,
        emit_library_call_value_1): Don't ifdef OUTGOING_REG_PARM_STACK_SPACE.
        * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
        * function.c (STACK_DYNAMIC_OFFSET): Likewise.
        * doc/tm.texi (OUTGOING_REG_PARM_STACK_SPACE): Update.
        * config/alpha/unicosmk.h, config/bfin/bfin.h, config/iq2000/iq2000.h,
        config/mips/mips.h, config/mn10300/mn10300.h, config/mt/mt.h,
        config/pa/pa.h, config/rs6000/rs6000.h, config/score/score.h,
        config/spu/spu.h, config/v850/v850.h (OUTGOING_REG_PARM_STACK_SPACE):
        Set to 1.

2007-03-22  Joseph Myers  <joseph@codesourcery.com>

        * c-incpath.c (add_sysroot_to_chain): New.
        (merge_include_chains): Add sysroot argument.  Call
        add_sysroot_to_chain if sysrooted.
        (register_include_chains): Update call to merge_include_chains.
        * doc/cppopts.texi: Document use of '=' in include directory
        arguments.

2007-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cmp<mode>): Rename from cmpsf and cmpdf.
        Macroize expander using SSEMODEF mode macro.  Use SSE_FLOAT_MODE_P.
        (*cmpfp_<mode>): Rename from *cmpfp_sf and *cmpfp_df. Macroize
        insn pattern using X87MODEF12 mode macro.
        
2007-03-21  Seongbae Park <seongbae.park@gmail.com>

        * regmove.c (regmove_optimize): Use reg_mentioned_p
        instead of reg_overlap_mentioned_p for DST.

2007-03-21  Mike Stump  <mrs@apple.com>

        * c.opt: Fixup for Objective-C/C++.

2007-03-21  Steve Ellcey  <sje@cup.hp.com>

        * explow.c (convert_memory_address): Fold memory reference when
        POINTERS_EXTEND_UNSIGNED < 0

2007-03-21  Richard Henderson  <rth@redhat.com>

        PR target/31245
        * config/i386/emmintrin.h (__m128i, __m128d): Mark may_alias.
        * config/i386/mmintrin.h (__m64): Likewise.
        * config/i386/xmmintrin.h (__m128): Likewise.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_ADDITIONAL_CPP_SPEC): Remove -D options.
        (VXWORKS_OS_CPP_BUILTINS): Define.
        * config/i386/vxworks.h (VXWORKS_CPU_DEFINE): Fold into...
        (TARGET_OS_CPP_BUILTINS): ...here.  Use VXWORKS_OS_CPP_BUILTINS.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * rtl.h (constant_pool_reference_p): Delete.
        (find_constant_src): Declare.
        * rtlanal.c (find_constant_src): New function.
        * simplify-rtx.c (constant_pool_reference_p): Delete.
        * config/i386/i386.md: Use find_constant_src instead of
        constant_pool_reference_p/avoid_constant_pool_reference pairs.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi (-fpie, -fPIE): Document __pie__ and __PIE__.
        * c-cppbuiltin.c (c_cpp_builtins): Define them.

2007-03-20  Mark Mitchell  <mark@codesourcery.com>

        * config/arm/elf.h (TARGET_ASM_DESTRUCTOR): Define.
        * config/arm/arm.c (arm_elf_asm_cdtor): New function.
        (arm_elf_asm_constructor): Use it.
        (arm_elf_asm_destructor): New function.

2007-03-20  Bernd Schmidt  <bernd.schmidt@analog.com>

        * jump.c (mark_jump_label): Treat SEQUENCE specially.

2007-03-20  Nathan Sidwell  <nathan@codesourcery.com>

        * config/vxlib.c (tls_delete_hook): Use TCB for kernel tasks.

2007-03-19  Andrew Haley  <aph@redhat.com>

        PR tree-optimization/31264
        * tree-vrp.c (register_edge_assert_for_1): Don't look though
        VIEW_CONVERT_EXPRs.

2007-03-19  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/30907
        * fwprop.c (forward_propagate_into): Never propagate inside a loop.
        (fwprop_init): Always call loop_optimizer_initialize.
        (fwprop_done): Always call loop_optimizer_finalize.
        (fwprop): We always have loop info now.
        (gate_fwprop_addr): Remove.
        (pass_fwprop_addr): Use gate_fwprop as gate.

        PR rtl-optimization/30841
        * df-problems.c (df_ru_local_compute, df_rd_local_compute,
        df_chain_alloc): Call df_reorganize_refs unconditionally.
        * df-scan.c (df_rescan_blocks, df_reorganize_refs): Change
        refs_organized to refs_organized_size.
        (df_ref_create_structure): Use refs_organized_size instead of
        bitmap_size if refs had been organized, and keep refs_organized_size
        up-to-date.
        * df.h (struct df_ref_info): Change refs_organized to
        refs_organized_size.
        (DF_DEFS_SIZE, DF_USES_SIZE): Use refs_organized_size instead of
        bitmap_size.

2007-03-19  Mark Mitchell  <mark@codesourcery.com>

        * except.c (output_function_exception_table): Do not reference the
        EH personality routine for functions that do not require an
        exception table.

2007-03-20  Jakub Jelinek  <jakub@redhat.com>

        PR c/30762
        * c-typeck.c (convert_for_assignment): Call comptypes for
        RECORD_TYPE or UNION_TYPE.

        PR inline-asm/30505
        * reload1.c (reload): Do invalid ASM checking after
        cleanup_subreg_operands.

2007-03-19  Jeff Law  <law@redhat.com>

        * tree-cfg.c (find_taken_edge): Tighten conditions for
        optimizing computed gotos.

2007-03-19  Michael Matz  <matz@suse.de>

        * builtins.c (expand_builtin_sync_operation,
        expand_builtin_compare_and_swap,
        expand_builtin_lock_test_and_set): Care for extending CONST_INTs
        correctly.

        * config/i386/sync.md (sync_double_compare_and_swapdi_pic,
        sync_double_compare_and_swap_ccdi_pic): Use "SD" as constraint
        for operand 3.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * doc/tm.texi: Add brackets around the return type of
        TARGET_SECONDARY_RELOAD.

2007-03-19  Andrew Pinski  <andrew_pinski@playstation.sony.com>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31254
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
        Use handled_component_p () where appropriate.  Continue
        propagating into the rhs if we propagated into an INDIRECT_REF
        on the lhs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (op_type attribute): RRR instruction type added.
        (FP, DFP, SD_SF, DD_DF, TD_TF): New mode macros.
        (xde, xdee): Mode attributes adjusted to support DFP modes.
        (RRer, f0, op1, Rf, bt, bfp, HALF_TMODE): New mode attributes added.
        ("cmp<mode>", "*cmp<mode>_css_0", "*cmp<mode>_ccs", TF move splitters,
        DF move splitters, "floatdi<mode>2", "add<mode>3", "*add<mode>3", 
        "*add<mode>3_cc", "*add<mode>3_cconly", "sub<mode>3", "*sub<mode>3",
        "*sub<mode>3_cc", "*sub<mode>3_cconly", "mul<mode>3", "*mul<mode>3",
        "div<mode>3", "*div<mode>3", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
        "*negabs<mode>2_nocc", "copysign<mode>3"): Adjusted to support DFP 
        numbers.
        ("*movtf_64", "*movtf_31", "*movdf_64dfp", "*movdf_64", "*movdf_31",
        "movsf"): Insn definitions removed.
        ("*mov<mode>_64", "*mov<mode>_31", "mov<mode>", "*mov<mode>_64dfp",
        "*mov<mode>_64", "*mov<mode>_31", "fix_trunc<DFP:mode>di2",
        "trunctddd2", "truncddsd2", "extendddtd2", "extendsddd2"): Insn
        definitions added.
        ("fixuns_truncdddi2", "fixuns_trunctddi2", "mov<mode>",
        "reload_in<mode>", "reload_out<mode>"): Expander added.
        ("movtf", "movdf", "reload_outtf", "reload_outdf", "reload_intf"):
        Expander removed.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md: Only non-functional changes.  Renamed
        FPR mode macro to BFP all over the file.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (UNSPEC_COPYSIGN): New constant.
        (op_type attribute): RRF instruction type added.
        (fT0): New mode attribute.
        ("*movdi_64dfp", "*movdf_64dfp", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
        "*negabs<mode>2_nocc", "copysign<mode>3"): Insn definitions added.
        * config/s390/s390.h (SECONDARY_MEMORY_NEEDED): Due to a new instruction
        no secondary memory is needed when moving DFmode values between GPRs
        and FPRs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.opt ("mhard-float", "msoft-float"): Bit value
        inverted and documentation adjusted.
        ("mhard-dfp", "msoft-dfp"): New options.
        * config/s390/s390.c (s390_handle_arch_option): New architecture
        switch: z9-ec.
        (override_options): Sanity checks for the new options added.
        * config.gcc: New architecture switch: z9-ec.
        * config/s390/s390.h (processor_flags): PF_DFP added.
        (TARGET_CPU_DFP, TARGET_DFP): Macro definitions added.
        (TARGET_DEFAULT): Due to the s390.opt changes hard float is enabled
        when the bit is NOT set so remove it from the defaults.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * genemit.c (main): Print include statement for dfp.h.
        * dfp.h (decimal_real_arithmetic): Hide prototype if tree_code enum
        is not available.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/t-elfmulti (EXTRA_MULTILIB_PARTS): Do not define here.

2007-03-19  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31022
        * config/sh/sh.c (sh_adjust_cost): Use the result of single_set
        instead of PATTERN.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (output_deferred_plabels, output_bb, output_millicode_call,
        attr_length_call, output_call, output_indirect_call): Cleanup
        formatting of targetm calls.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h (HANDLE_PRAGMA_PACK_PUSH_POP): Define to 1.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: Add fpstore_load and store_fpload instruction types.  Provide
        reservation, bypass and anti-bypass descriptions for these instructions.
        Update move patterns.
        * pa.c (hppa_fpstore_bypass_p): Check for both TYPE_FPSTORE_LOAD and
        TYPE_FPSTORE.
        
2007-03-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-transform.c (get_initial_def_for_induction): Replace
        GET_MODE_NUNITS with TYPE_VECTOR_SUBPARTS.
        (get_initial_def_for_reduction): Likewise.

2007-03-16  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/29922
        * tree-ssa-pre.c (bb_bitmap_sets): Remove RVUSE_* members.
        (get_representative): Removed.
        (value_dies_in_block_x): Update for rvuse removal.
        (valid_in_sets): Update for renaming of vuses_dies_in_block_x.
        (compute_antic_aux): Handle when PHI nodes appear in
        non-single-successors. 
        (dump_bitmap_of_names): Removed.
        (compute_antic_safe): Renamed and removed rvuse calculation.
        Calculate only antic safe.
        (insert_into_preds_of_block): Remove assert.
        (execute_pre): Update for renamed functions.
        (defer_or_phi_translate_block): New function.
        
2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/arm.c, config/arm/thumb2.md, config/m68k/m68k.c,
        config/spu/spu.c, omega.h, passes.c, predict.c: Fix comment
        typos.
        * doc/cpp.texi, doc/extend.texi, doc/invoke.texi: Fix typos.
        Follow spelling conventions.

        * tree-data-ref.h: Remove the prototype for analyze_array.

2007-03-17  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/31041
        * tree-vect-transform.c (get_initial_def_for_induction): Call
        force_gimple_operand.
        
2007-03-17  Olga Golovanevsky  <olga@il.ibm.com>
  
        * ipa-type-escape.c (look_for_casts) : Revert code to use
        handled_component_p due to ada test a-numaux.adb.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

        * final.c (final_scan_insn): Alter the condition of a
        conditional trap if we have nonstandard CC.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Remove excess quoting from asm line 0 test.
        * configure: Rebuilt.

2007-03-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (-Wconversion): Document warnings specific to C++.
        * c-common.c (convert_and_check): Move warning logic to...
        (warnings_for_convert_and_check): ...here. Define.
        * c-common.h (warnings_for_convert_and_check): Declare.
        
2007-03-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (attr_length_call): Partially revert change of 2007-03-09.
        (output_call): Likewise.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (SUPPORTS_INIT_PRIORITY): Define.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/vx-common.h (WINT_TYPE, WINT_TYPE_SIZE): Define.

2007-03-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Add PTA_NO_SAHF to k8,
        opteron, athlon-64 and athlon-fx processor_alias_table entries.

2007-03-16  Sebastian Pop  <sebastian.pop@inria.fr>

        PR tree-optimization/31183
        * tree-loop-linear.c (gather_interchange_stats, try_interchange_loops): 
        Use double_int instead of unsigned int for representing access_strides.
        * testsuite/gcc.dg/tree-ssa/pr31183.c: New.

2007-03-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31146
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Restructure
        to allow recursion of forward_propagate_addr_expr.
        (forward_propagate_addr_into_variable_array_index): Likewise.
        (forward_propagate_addr_expr): Likewise.
        (tree_ssa_forward_propagate_single_use_vars): Likewise.
        (forward_propagate_addr_expr_1): Recurse on simple copies
        instead of propagating into them.  Do so for useless conversions
        as well.
        (forward_propagate_addr_expr): Clean up unused statements after
        recursion.

2007-03-16  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Use the right argument
        for the expansion via cexp.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Don't require ELF binutils to tolerate # 0 "".
        * configure: Rebuilt.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/29906
        * dwarf2out.c (force_type_die): Adjust comment.
        (dwarf2out_imported_module_or_decl): Handle base AT_import types.

2007-03-15  DJ Delorie  <dj@redhat.com>

        * config/frv/predicates.md (minmax_operator): Don't check operands
        here.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (record_estimate): Add "upper" argument.
        Update constant estimates of number of iterations.
        (record_nonwrapping_iv): Add "upper" argument.  "data_size_bounds_p"
        argument renamed to "realistic".
        (compute_estimated_nb_iterations): Removed.
        (record_niter_bound): New function.
        (idx_infer_loop_bounds): For possible but unlikely tail arrays,
        call record_nonwrapping_iv with upper = false.
        (infer_loop_bounds_from_signedness): Pass upper argument to
        record_nonwrapping_iv.
        (estimate_numbers_of_iterations_loop): Do not call
        compute_estimated_nb_iterations.  Record estimate based on profile
        information.  Initialize the constant estimates of number of
        iterations.
        * tree-data-ref.c (estimated_loop_iterations): Return the recorded
        estimates.
        * tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Add dump when
        number of iterations is too small.
        * cfgloop.h (struct nb_iter_bound): Remove "realistic" field.
        (EST_NOT_AVAILABLE): Removed.
        (struct loop): Replace estimated_nb_iterations by any_upper_bound,
        nb_iterations_upper_bound, any_estimate and nb_iterations_estimate
        fields.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (refine_bounds_using_guard, bound_difference):
        Handle NE_EXPR guards.

2007-03-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24924
        * c-opts.c (c_common_post_options): Handle C++ post-processing here.
        Set also -pedantic-errors by default for the  preprocessor unless
        -fpermissive is given.
        
2007-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/29719
        PR middle-end/31161
        * builtins.c (expand_builtin_cexpi): As a fallback if we
        don't have builtins for sincos or cexp create a function
        declaration for cexp and expand to a call to that.
        (expand_builtin_int_roundingfn): Always fall
        back to floor/ceil and its variants even if they may be
        not available.

2007-03-15  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/31159
        * cfglayout.c (fixup_reorder_chain): Postpone deleting dead
        jump tables, move the call to delete_dead_jumptables from here...
        (cfg_layout_finalize): ...to here.  But rebuild jump labels first.
        * cfgrtl.c (cfg_layout_can_merge_blocks_p): When not optimizing,
        don't allow merging of blocks that try_redirect_by_replacing_jump
        also does not handle when not optimizing.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>
            Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * config/i386/i386.md (x86_sahf_1): Correctly handle
        HAVE_AS_IX86_SAHF.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31167
        * config/i386/i386.md (*addti3_1, *addti3_1 splitter): Use
        x86_64_general_operand as operand[2] predicate.  Remove "iF"
        from operand constraints and use "e" constraint instead.
        (*subti3_1, *subti3_1 splitter): Ditto.
        (*negti2_1, *negti2_1 splitter): Use nonimmediate_operand as
        operand[1] predicate.

2007-03-14  Sebastian Pop  <sebastian.pop@inria.fr>

        * tree-loop-linear.c (gather_interchange_stats): For multidimensional
        arrays, multiply the access strides by the size of the sub-array.
        * testsuite/gcc.dg/tree-ssa/ltrans-5.c: New.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * configure.ac (HAVE_AS_IX86_SAHF): On x86 targets check whether
        the configured assembler supports the sahf mnemonic.
        * configure: Regenerate.
        * config.in: Regenerate.

        * config/i386/i386.md (x86_sahf_1): Depending on HAVE_AS_IX86_SAHF,
        emit "sahf" or ".byte\t0x9e" as asm template.

2007-03-14  Michael Meissner  <michael.meissner@amd.com>

        PR 31018
        * config/i386/i386.h (X86_TUNE_SHORTEN_X87_SSE): New tuning
        option to replace hard coded TARGET_xxx in md file.
        (X86_TUNE_AVOID_VECTOR_DECODE): Ditto.
        (X86_TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
        (X86_TUNE_SLOW_IMUL_IMM8): Ditto.
        (X86_TUNE_MOVE_M1_VIA_OR): Ditto.
        (X86_TUNE_NOT_UNPAIRABLE): Ditto.
        (X86_TUNE_NOT_VECTORMODE): Ditto.
        (TUNE_SHORTEN_X87_SSE): Use new tuning option.
        (TUNE_AVOID_VECTOR_DECODE): Ditto.
        (TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
        (TUNE_SLOW_IMUL_IMM8): Ditto.
        (TUNE_MOVE_M1_VIA_OR): Ditto.
        (TUNE_NOT_UNPAIRABLE): Ditto.
        (TUNE_NOT_VECTORMODE): Ditto.
        
        * config/i386/i386.c (ix86_tune_features): Fill in new tuning
        options.

        * config/i386/i386.md (fix_trunc?f?1_sse peephole2): Use new
        tuning options instead of hard coded TARGET_xxx.
        (fix ssemode peephole2's): Ditto.
        (imul peephole2's): Ditto.
        (movsi_or): Ditto.
        (movdi_or_rex64): Ditto.
        (move peephole2): Ditto.
        (not peephole2's): Ditto.

2007-03-14  Dirk Mueller  <dmueller@suse.de>

        * c-common.h (empty_body_warning): Rename to empty_if_body_warning.
        * c-common.c (empty_if_body_warning): Rephrase diagnostic message.
        * c-parser.c (c_parser_if_body): Always add an empty statement in case
        of empty body.
        * c-parser.c (c_parser_do_statement): Warn about empty body in
        do/while statement.
        * c-typeck (c_finish_if_stmt): Call empty_if_body_warning.
        * doc/invoke.texi (-Wempty-body): Update documentation.

2007-03-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/21438
        * c-common.h (warn_for_div_by_zero): Declare.
        * c-common.c (warn_for_div_by_zero): Define.
        * c-typeck.c (build_binary_op): Call warn_for_div_zero instead of
        warning.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (PREPROCESSOR_DEFINES): Add directory terminators
        to PREFIX and STANDARD_PREFIX.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>
            Phil Edwards  <phil@codesourcery.com>

        * gthr-vxworks.h: Add an extern "C" wrapper for C++.
        (__gthread_once_t): Remove busy field for RTPs.
        (__GTHREAD_ONCE_INIT): Update accordingly.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document VxWorks options.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * doc/invoke.texi (i386 and x86-64 Options): Clarify -msahf option.

2007-03-13  Seongbae Park <seongbae.park@gmail.com>

        PR tree-optimization/30590
        * tree-nrv.c (tree_nrv): Check for the partial update of the
        return value.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

        * flags.h (flag_random_seed): Remove declaration, in favor of...
        * toplev.h (get_random_seed, set_random_seed): ... these.
        * tree.c (get_file_function_name): Use the former.
        * opts.c (common_handle_option): Use the latter.
        * toplev.c

2007-03-13  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/31127
        * cse.c (cse_find_path): Do not bail out if a basic block that
        we already visited now becomes part of a path that starts at a
        different basic block.  Just disallow this, to make sure we
        visit each basic block at most once.

2007-03-13  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes,
        when profile esitmate is present, calls with very low frequency are
        cold.

2007-03-13  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30730
        PR tree-optimization/26900
        * tree-ssa-loop-niter.c: Include gmp.h.
        (bounds): New type.
        (mpz_set_double_int, get_type_bounds, mpz_to_double_int,
        split_to_var_and_offset, determine_value_range,
        bound_difference_of_offsetted_base, refine_bounds_using_guard,
        bound_difference, bounds_add, bounds_negate,
        number_of_iterations_ne_max, dump_affine_iv): New functions.
        (number_of_iterations_ne, number_of_iterations_lt_to_ne,
        assert_loop_rolls_lt, assert_loop_rolls_le): Use bounds on the
        difference of initial and final value of control iv to validate
        results.
        (number_of_iterations_cond): Add loop parameter.  Determine bounds
        on the difference of the extremes of the control iv.  Add dumps.
        (expand_simple_operations): Handle phi nodes.
        (simplify_using_initial_conditions): Do not record used conditions.
        (number_of_iterations_exit): Pass loop to number_of_iterations_cond.
        Do not set additional_info.
        (implies_nonnegative_p, implies_ge_p): Removed.
        (derive_constant_upper_bound): Do not use parameter `additional'.
        (record_estimate): Parameter `additional' removed.  Parameter
        `i_bound' added.  Do not call derive_constant_upper_bound.
        (record_nonwrapping_iv): Use derive_constant_upper_bound to
        bound the number of iterations estimate.
        (estimate_numbers_of_iterations_loop): Pass the estimate from
        the number of iterations analysis to record_estimate.
        * tree.h (multiple_of_p): Declare.
        * tree-scalar-evolution.c (expression_expensive_p): Removed.
        (scev_const_prop): Do not check expression_expensive_p.
        * fold-const.c (multiple_of_p): Exported.
        * double-int.c (double_int_mask): Exported.
        * double-int.h (double_int_mask): Declare.
        * tree-flow.h (struct tree_niter_desc): Removed additional_info
        field.  Added max field.

2007-03-13  David Taylor  <taylor@candd.org>

        PR driver/12448:
        * gcc.c (cpp_unique_options): If -MT or -MQ is seen, don't pass
        default -MQ.

2007-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/31123
        * pa.md (vdepi_ior): Don't allow zero length deposit.  Likewise for
        two unamed patterns.
        
2007-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.opt (mcx16, msahf): New options.
        * config/i386/i386.c (x86_cmpxchg16b, x86_sahf): Remove.
        (ix86_tune_features) [X86_TUNE_USE_SAHF]: Enable for m_GENERIC.

        * config/i386/driver-i386.c (bit_LAHF_LM): New define.
        (host_detect_local_cpu): Detect cx16 and lahf_lm cpuid bits.
        Output -mcx16 and -msahf options when corresponding bit is set.

        * doc/invoke.texi (i386 and x86-64 Options): Document -mcx16
        and -msahf options.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Test for assembler tolerance to # 0 "".
        * configure, config.in: Rebuilt.
        * final.c (final_scan_insn): Emit it if HAVE_AS_LINE_ZERO.

2007-03-13  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Spec Files): Update for '%{,' spec.

        * config/rs6000/darwin-fallback.c: Compile file only on powerpc.
        (handle_syscall): Handle direct system calls.
        * config/rs6000/darwin.h (HAS_MD_FALLBACK_FRAME_STATE_FOR): Delete.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/invoke.texi: Fix cpp.info cross-reference.
        * doc/passes.texi: Fix gcc.info cross-reference.

2007-03-12  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30835
        * lambda-code.c (can_convert_to_perfect_nest): Check whether
        bb_for_stmt is not NULL before accessing it.

2007-03-12  Joseph Myers  <joseph@codesourcery.com>

        * gcc.c (main): Handle target_sysroot_hdrs_suffix being NULL for
        some multilibs.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

        PR 30635
        * doc/install.texi: Document --enable-stage1-languages

2007-03-12  Steven Bosscher  <steven@gcc.gnu.org>

        * tree-pass.h (pass_into_cfg_layout_mode,
        pass_outof_cfg_layout_mode): Declare.
        * cfglayout.c (into_cfg_layout_mode, outof_cfg_layout_mode,
        pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode): New.
        * passes.c (pass_into_cfg_layout_mode): Schedule before jump2.
        (pass_outof_cfg_layout_mode): Schedule after pass_rtl_ifcvt.

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

        * c-decl.c (warn_variable_length_array): New function.
        Refactored from grokdeclarator to handle warn_vla
        and handle unnamed array case.
        (grokdeclarator): Refactored VLA warning case.
        * c.opt (Wvla): New flag.
        * doc/invoke.texi (Wvla): New warning.

2007-03-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_elf_section_type_flags): New.
        (TARGET_SECTION_TYPE_FLAGS): New.

2007-03-12  Richard Henderson  <rth@redhat.com>

        * config/darwin.c (machopic_reloc_rw_mask): New.
        * config/darwin-protos.h (machopic_reloc_rw_mask): Declare.
        * config/darwin.h (TARGET_ASM_RELOC_RW_MASK): New.

2007-03-12  Mark Mitchell  <mark@codesourcery.com>

        * cppdefault.c (cpp_EXEC_PREFIX): New variable.
        * cppdefault.h (cpp_PREFIX): Document.
        (cpp_PREFIX_len): Likewise.
        (cpp_EXEC_PREFIX): New variable.
        * Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX.
        * c-incpath.c (add_standard_paths): Correct logic for relocating
        paths within prefix.

2007-03-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fixuns_trunc<mode>hi2): Implement from
        fixuns_truncsfhi2 and fixuns_truncdfhi2 using SSEMODEF
        mode macro.
        (fix_trunc<mode>di_sse): Implement from fix_truncsfdi_sse and
        fix_truncdfdi_sse using SSEMODEF mode macro.
        (fix_trunc<mode>si_sse): Implement from fix_truncsfsi_sse and
        fix_truncdfsi_sse using SSEMODEF mode macro.
        (fix_trunc?f?i_sse peephole2): Implement using SSEMODEF mode macro.
        (fix_trunc?f?i_sse K8 peephole2): Fix register constraint.

2007-03-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add
        elfos.h to tm_file.

2007-03-12  Olga Golovanevsky  <olga@il.ibm.com>
  
        * tree.h : Add multiple_of_p declaration.
        * fold-const.c (multiple_of_p): Make multiple_of_p public. 
        * ipa-type-escape.c (results_of_malloc): Redundant.
        (visited_stmts): New. Visited stmt for walk_use_def_chains.
        (cast_type): Extended with new members.
        (check_cast): Returns cast_type.
        (cast): New structure for data of walk_use_def_chains.
        (is_malloc_result, is_cast_from_non_pointer_1,
        is_cast_from_non_pointer, 
        is_array_access_through_pointer_and_index): New functions.
        (look_for_casts): Returns cast types.
        (check_call): Returns void.
        (okay_pointer_operation): Use support of pointer plus index,
        pointer plus constant and allow all multiplications.
        
2007-03-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31115
        * tree-vrp.c (extract_range_from_binary_expr): Make sure
        the shift count is positive and non-anti-range for RSHIFT_EXPR.
        A shift count of zero is not special as with *_DIV_EXPR.
        (vrp_int_const_binop): Handle RSHIFT_EXPR for determining overflow
        direction.

2007-03-11  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (vrp_int_const_binop): Handle PLUS_EXPR and
        the *_DIV_EXPR codes correctly with overflow infinities.

2007-03-11  Ira Rosen  <irar@il.ibm.com>

        * tree-data-ref.c (analyze_offset): Add a return value (bool) to 
        indicate success/failure of the analysis. Add negation to subtrahend
        in case of subtraction. Fail if both operands contain constants.
        (create_data_ref): Fail if analyze_offset fails.

2007-03-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (frndintxf2): Rename to ...
        (rintxf2): ... this. Remove expander having same name.
        (rintsf2, rintdf2): Implement using SSEMODEF macro.
        (roundsf2, rounddf2): Ditto.
        (lrint<mode>di2, lrint<mode>si2): Implement using SSEMODEI24 macro.
        (lround<mode>di2, lround<mode>si2): Ditto.

2007-03-11  Steven Bosscher  <steven@gcc.gnu.org>

        * lower-subreg.c: Include except.h.
        (decompose_multiword_subregs): Verify that the only control flow
        insns we can split are loads to multi-words pseudos.
        Handle breaking such blocks after splitting, instead of calling
        find_many_sub_basic_blocks.

        * loop-unroll.c (split_edge_and_insert): Don't set BB_SUPERBLOCK
        on the new basic block.  Add a lengthy comment explaining why we
        thought this was necessary.
        * cfglayout.c (cfg_layout_finalize): Don't break superblocks.

2007-03-10  Mark Mitchell  <mark@codesourcery.com>

        PR c++/30924
        * tree.c (walk_type_fields): Recurse into the element type of
        ARRAY_TYPEs if there is a pointer set.

2007-03-10  Dirk Mueller  <dmueller@suse.de>

        * c-common.c (warn_logical_operator): Fix condition.

2007-03-10  Tobias Schlüter  <tobi@gcc.gnu.org>

        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Add missing
        quotation mark.
        * config/darwin.c (machopic_select_section): Remove superfluous
        argument in call to categorize_decl_for_section.  Remove unused
        variable shlib.

2007-03-10  Joseph Myers  <joseph@codesourcery.com>

        * configure.ac (glibc_header_dir): Set using with_build_sysroot if
        defined.
        * configure: Regenerate.

2007-03-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31101
        * config/i386/i386.md (UNSPEC_C2_FLAG): New constant.
        (fpremxf4_i387, fprem1xf4_i387): Use UNSPEC_C2_FLAG.
        (fmodxf3, fmod<mode>3, remainderxf3, remainder<mode>3):
        Add LABEL_NUSES to emitted label.
        * config/i386/i386.c (ix86_emit_fp_unordered_jump): Add
        branch probability value to emitted jump insn.
        * reg-stack.c (subst_stack_regs_pat)[UNSPEC]: Handle UNSPEC_C2_FLAG.
        Do not check life information and do not re-arrange input operands
        for UNSPEC_FSCALE_EXP, UNSPEC_FPREM_U and UNSPEC_FPREM1_U.

2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_insn_length_adjustment): Adjust for
        the change of decode_asm_operands.

2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * mode-switching.c (create_pre_exit): Skip blockage insn.

2007-03-09  Diego Novillo  <dnovillo@redhat.com>

        * tree-pass.h (TODO_update_smt_usage): Remove.
        Update all users.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Remove
        argument SOME.
        Update all users.

2007-03-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (attr_length_call): Revise condition for long pc-relative branch.
        (output_call): Use "LONG_PIC_SDIFF" instruction sequence for long local
        calls on the SOM target.  Don't use "LONG_PIC_PCREL" call sequence on
        SOM target.

2007-03-09  Geoffrey Keating  <geoffk@apple.com>

        * gcc.c: Document %{, in big comment at top.
        (input_suffix_matches): Remove special handling for .s and
        .S.
        (input_spec_matches): New.
        (handle_braces): Handle %{,.
        (validate_switches): ',' indicates a value which is not a switch.
        * config/alpha/osf.h (ASM_FINAL_SPEC): Use %{, rather than %{.
        to detect assembler input.
        * config/i386/sol2.h (CPP_SPEC): Likewise.
        * config/rs6000/sysv4.h (ASM_SPEC): Likewise.
        * config/rs6000/vxworks.h (ASM_SPEC): Likewise.
        * config/rs6000/lynx.h (ASM_SPEC): Likewise.
        * config/rs6000/linux64.h (ASM_SPEC_COMMON): Likewise.
        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Objective-C plus
        -m64 causes deployment target to default to 10.5.
        * config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.

2007-03-09  Richard Henderson  <rth@redhat.com>

        PR target/26090
        * target.h (targetm.asm.out.reloc_rw_mask): New.
        * target-def.h (TARGET_ASM_RELOC_RW_MASK): New.
        (TARGET_ASM_OUT): Use it.
        * targhooks.c, targhooks.h (default_reloc_rw_mask): New.
        * varasm.c (categorize_decl_for_section): Remove shlib argument;
        use the new reloc_rw_mask target hook instead.
        (default_section_type_flags_1): Merge into...
        (default_section_type_flags): ... here.
        (decl_readonly_section_1): Merge into...
        (decl_readonly_section): ... here.
        (default_elf_select_section_1): Merge into...
        (default_elf_select_section): ... here.
        (default_unique_section_1): Merge into...
        (default_unique_section): ... here.
        (compute_reloc_for_rtx_1, compute_reloc_for_rtx): New.
        (default_select_rtx_section): Use it.
        (default_elf_select_rtx_section): Likewise.
        * output.h: Update to match.
        * doc/tm.texi (TARGET_ASM_RELOC_RW_MASK): New.
        * config/alpha/alpha.c (alpha_elf_reloc_rw_mask): New.
        (TARGET_ASM_RELOC_RW_MASK): New.
        * config/i386/i386.c (x86_64_elf_select_section): Adjust call
        to categorize_decl_for_section.
        (x86_64_elf_unique_section): Likewise.
        * config/ia64/hpux.h (TARGET_ASM_SELECT_SECTION,
        TARGET_ASM_UNIQUE_SECTION, TARGET_ASM_SELECT_RTX_SECTION): Remove.
        (TARGET_ASM_RELOC_RW_MASK): New.
        * config/ia64/ia64.c (ia64_rwreloc_select_section,
        ia64_rwreloc_unique_section, ia64_rwreloc_select_rtx_section): Remove.
        (ia64_hpux_reloc_rw_mask, ia64_reloc_rw_mask): New.
        (TARGET_RWRELOC): Remove.
        (ia64_section_type_flags): Adjust call to default_section_type_flags.
        * config/ia64/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
        * config/rs6000/rs6000.c (rs6000_elf_section_type_flags): Remove.
        (rs6000_elf_select_section, rs6000_elf_unique_section): Remove.
        (rs6000_elf_reloc_rw_mask, rs6000_xcoff_reloc_rw_mask): New.
        (rs6000_xcoff_select_section): Use decl_readonly_section.
        (rs6000_xcoff_section_type_flags): Use default_section_type_flags.
        * config/rs6000/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
        (TARGET_ASM_SELECT_SECTION, TARGET_ASM_UNIQUE_SECTION): Remove.
        (TARGET_SECTION_TYPE_FLAGS): Remove.
        * config/rs6000/xcoff.h (TARGET_ASM_RELOC_RW_MASK): New.

2007-03-09  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_comparison): Remove compile-time evaluation of
        complex constant equality/inequality comparisons for here.
        (fold_binary) <EQ_EXPR>: Simplify complex comparisons that are
        known at compile-time or can be simplified to a scalar comparison.
        (fold_relational_const): Move compile-time evaluation of complex
        constant equality/inequality comparisons to here.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        PR rtl-optimization/30643
        * cse.c (cse_insn): Recompute dest_hash after insert_regs for
        dest_addr_elt.
        (fold_rtx): Recurse, like before 2006-11-03.

2007-03-09  DJ Delorie  <dj@redhat.com>

        * config/m32c/t-m32c (m32c-pragma.o): Add TM_H dependency to
        m32c-pragma.o.

2007-03-09  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/30375
        * tree-ssa-dse.c (dse_possible_dead_store_p): Do not eliminate if
        LHS of statements is not the same.
        * testsuite/gcc.dg/tree-ssa/ssa-dse-10.c: New.

2007-03-09  Chao-ying Fu  <fu@mips.com>

        * doc/extend.texi (MIPS DSP Built-in Functions): Document the DSP
        REV 2.
        * doc/invoke.texi (-mdspr2): Document new option.
        * config/mips/mips.md (UNSPEC_ABSQ_S_QB .. UNSPEC_DPSQX_SA_W_PH):
        New unspec for DSP REV 2.
        (<u>mulsidi3_32bit_internal): Check if !TARGET_DSPR2, because
        these instructions are extended in DSP REV 2.
        (mips-dspr2.md): Include.
        * config/mips/mips.opt (mdspr2): New option.
        * config/mips/mips.c (mips_function_type): Add MIPS_V4QI_FTYPE_V4QI,
        MIPS_SI_FTYPE_SI_SI_SI, MIPS_DI_FTYPE_DI_USI_USI, MIPS_DI_FTYPE_SI_SI,
        MIPS_DI_FTYPE_USI_USI, MIPS_V2HI_FTYPE_SI_SI_SI.
        (override_options): Check TARGET_DSPR2 to enable MASK_DSP.
        (CODE_FOR_mips_mul_ph): Define it to CODE_FOR_mulv2hi3.
        (dsp_bdesc): Add DSP REV 2 builtins.  Remove 32-bit only DSP builtins.
        (dsp_32only_bdesc): New description table for 32-bit only DSP REV 1
        and 2 builtins.
        (bdesc_map): Add one field of unsupported_target_flags.
        (bdesc_arrays):  Update entries to have extra fields.  Add
        dsp_32only_bdesc.
        (mips_init_builtins): Initialize new function types.
        Check unsupported_target_fileds to filter out builtins.
        * config/mips/mips.h (TARGET_CPU_CPP_BUILTINS): Define __mips_dspr2 if
        TARGET_DSPR2.
        (ASM_SPEC): Pass mdspr2 to the assembler.
        * config/mips/mips-dspr2.md: New file.

2007-03-09  Sa Liu  <saliu@de.ibm.com>

        * config/rs6000/altivec.md: Fix vcond patterns using if_then_else.

2007-03-09  Ian Lance Taylor  <iant@google.com>

        * opts.c (common_handle_option): Treat -Wstrict-overflow (with no
        argument) like -Wstrict-overflow=2.
        * doc/invoke.texi (Warning Options): Update documentation.

2007-03-09  Dirk Mueller  <dmueller@suse.de>

        PR c++/17946
        * doc/invoke.texi (-Wlogical-op): Document.
        * common.opt (-Wlogical-op): New.
        * c-common.h (warn_logical_operator): Declare.
        * c-common.c (warn_logical_operator): Define.
        * c-typeck.c (parser_build_binary_op): Call
        warn_logical_operator.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.h (gen_rtx_ASM_INPUT): Use "" instead of NULL file name.
        * final.c (final_scan_insn): Test for non-"" file name.

2007-03-09  Sebastian Pop  <sebastian.pop@inria.fr>

        * doc/loop.texi: Document the Omega linear constraints solver.
        * doc/invoke.texi: Document -fcheck-data-deps, omega-max-vars,
        omega-max-geqs, omega-max-eqs, omega-max-wild-cards, 
        omega-hash-table-size, omega-max-keys, and 
        omega-eliminate-redundant-constraints.
        * tree-pass.h (pass_check_data_deps): Declared.
        * omega.c: New.
        * omega.h: New.
        * timevar.def (TV_CHECK_DATA_DEPS): Declared.
        * tree-ssa-loop.c (check_data_deps, gate_check_data_deps, 
        pass_check_data_deps): New.
        * tree-data-ref.c (init_data_ref): Remove declaration.
        (dump_data_dependence_relation): Dump DDR_INNER_LOOP.
        (analyze_array): Renamed init_array_ref, move up initializations.
        (init_data_ref): Renamed init_pointer_ref.  Moved before its call.
        Removed arguments that are set to NULL.
        (analyze_indirect_ref): Correct indentation, correct call to 
        init_pointer_ref.
        (object_analysis): Call init_array_ref instead of analyze_array.
        (initialize_data_dependence_relation): Initialize DDR_INNER_LOOP.
        (access_functions_are_affine_or_constant_p): Use DR_ACCESS_FNS instead
        of DR_ACCESS_FNS_ADDR.
        (init_omega_eq_with_af, omega_extract_distance_vectors, 
        omega_setup_subscript, init_omega_for_ddr_1, init_omega_for_ddr,
        ddr_consistent_p): New.
        (compute_affine_dependence): Check consistency of ddrs when 
        flag_check_data_deps is passed.
        (analyze_all_data_dependences): Uncomment.
        (tree_check_data_deps): New.
        * tree-data-ref.h: Include omega.h.
        (DR_ACCESS_FNS_ADDR): Removed.
        (data_dependence_relation): Add inner_loop.
        (DDR_INNER_LOOP): New.
        * common.opt (fcheck-data-deps): New.
        * tree-flow.h (tree_check_data_deps): Declare.
        * Makefile.in (TREE_DATA_REF_H): Depend on omega.h.
        (OBJS-common): Depend on omega.o.
        (omega.o): Define.
        * passes.c (pass_check_data_deps): Scheduled.
        * params.def (PARAM_OMEGA_MAX_VARS, PARAM_OMEGA_MAX_GEQS, 
        PARAM_OMEGA_MAX_EQS, PARAM_OMEGA_MAX_WILD_CARDS,
        PARAM_OMEGA_HASH_TABLE_SIZE, PARAM_OMEGA_MAX_KEYS,
        PARAM_VECT_MAX_VERSION_CHECKS,
        PARAM_OMEGA_ELIMINATE_REDUNDANT_CONSTRAINTS): New.

2007-03-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30904
        PR middle-end/31058
        * tree-vrp.c (extract_range_from_binary_expr): Handle RSHIFT_EXPR
        the same way as *_DIV_EXPR.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * recog.c (decode_asm_operands): No mixed declarations and code.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.def (ASM_INPUT): Add location.
        * rtl.h (ASM_INPUT_SOURCE_LOCATION): New.
        (ASM_INPUT_SOURCE_FILE, ASM_INPUT_SOURCE_LINE): New.
        (decode_asm_operands): Add loc operand.
        (gen_rtx_ASM_INPUT, gen_rtx_ASM_INPUT_loc): Define.
        * stmt.c (expand_asm): Rename to...
        (expand_asm_loc): ... this.  Add locus argument.  Pass it on to
        gen_rtx_ASM_INPUT_loc.
        (expand_asm_expr): Adjust.
        * recog.c (decode_asm_operands): Add loc operand.
        (check_asm_operands, extract_insn): Adjust.
        * reload1.c (maybe_fix_stack_asms): Likewise.
        * final.c (asm_insn_count): Likewise.
        (final_scan_insn): Output # line before and after asm.

2007-03-09  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (variable_info): Remove
        finished_solution.
        (new_var_info): Ditto.
        (shared_bitmap_info_t): New structure.
        (shared_bitmap_table): New variable.
        (shared_bitmap_hash): New function.
        (shared_bitmap_eq): Ditto
        (shared_bitmap_lookup): Ditto.
        (shared_bitmap_add): Ditto.
        (merge_smts_into): Change to take bitmap directly.
        (find_what_p_points_to): Rewrite to use shared bitmap hashtable.
        (init_alias_vars): Init shared bitmap hashtable.
        (delete_points_to_sets): Delete shared bitmap hashtable.
        * tree-ssa-operands.c (add_virtual_operand): Partially revert the
        is_aliased removal as a change that was still necessary was
        deleted.

2007-03-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (override_options): Conditionally disable
        x86_sahf for 64bit targets only.

2007-03-08  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C/31072
        * c-decl.c (merge_decls): Don't call make_var_volatile.
        * varasm.c (make_var_volatile): Remove.
        * output.h (make_var_volatile): Remove.

2007-03-08  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31085
        * tree-ssa-address.c (create_mem_ref): Fix test of type of base.

2007-03-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (lceil, lceilf, lceill, lfloor, lfloorf, lfloorl,
        llceil, llceilf, llceill, llfloor, llfloorf, llfloorl): Mark with
        ATTR_CONST_NOTHROW_LIST.
        
        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
        FIX_TRUNC_EXPR.

2007-03-08  Diego Novillo  <dnovillo@redhat.com>

        * doc/tree-ssa.texi: Remove documentation for V_MUST_DEF.

2007-03-08  Geoffrey Keating  <geoffk@apple.com>

        PR 31013
        * gccspec.c (lang_specific_driver): Do nothing when NEXT_OBJC_RUNTIME
        is declared.
        * config/darwin.h (REAL_LIBGCC_SPEC): When -fgnu-runtime is
        passed, use shared libgcc.

2007-03-08  Roger Sayle  <roger@eyesopen.com>

        * tree-eh.c (do_return_redirection): Call build_gimple_modify_stmt
        instead of calling build2 with a GIMPLE_MODIFY_STMT.
        (honor_protect_cleanup_actions, lower_try_finally_switch):
        Likewise.
        * tree-if-conv.c (replace_phi_with_cond_gimple_modify_stmt,
        ifc_temp_var): Likewise.
        * tree-inline.c (setup_one_parameter): Likewise.
        * tree-mudflap.c (mf_decl_cache_locals,
        mf_build_check_statement_for): Likewise.
        * tree-nested.c (init_tmp_var, save_tmp_var,
        finalize_nesting_tree_1): Likewise.
        * tree-outof-ssa.c (insert_copy_on_edge,
        insert_backedge_copies): Likewise.
        * tree-profile.c (tree_gen_edge_profiler,
        tree_gen_ic_profiler): Likewise.
        * tree-scalar-evolution.c (scev_const_prop): Likewise.
        * tree-sra.c (sra_build_assignment): Likewise.
        * tree-ssa-loop-im.c (determine_invariantness_stmt): Likewise.
        * tree-ssa-math-opts.c (insert_reciprocals,
        execute_cse_sincos_1): Likewise.
        * tree-tailcall.c (adjust_accumulator_values,
        adjust_return_value): Likewise.
        * tree-vect-patterns.c (vect_pattern_recog_1): Likewise.
        * tree-vect-transform.c (vect_create_data_ref_ptr,
        bump_vector_ptr, vect_init_vector, get_initial_def_for_induction,
        vect_create_epilog_for_reduction, vectorizable_reduction,
        vectorizable_call, vectorizable_conversion,
        vectorizable_assignment, vectorizable_operation,
        vectorizable_type_demotion, vect_gen_widened_results_half,
        vect_permute_store_chain, vectorizable_store,
        vect_setup_realignment, vect_permute_load_chain,
        vectorizable_load, vectorizable_condition,
        vect_create_cond_for_align_checks): Likewise.
        * tree-vrp.c (build_assert_expr_for): Likewise.

2007-03-08  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c: Include "intl.h".
        (usable_range_p): New static function.
        (compare_values_warnv): Don't test TYPE_OVERFLOW_UNDEFINED for
        overflowed values, juts set *strict_overflow_p.
        (compare_values): Only return -2 if one of the operands is not a
        constant.
        (compare_ranges): Call usable_range_p.
        (compare_range_with_value): Likewise.
        (vrp_evaluate_conditional_warnv): Rename from
        vrp_evaluate_conditional.  Make static.  Change all callers.
        (vrp_evaluate_conditional): New function.
        (simplify_div_or_mod_using_ranges): Issue warning about reliance
        on signed overflow.
        (simplify_abs_using_ranges): Likewise.
        (simplify_stmt_for_jump_threading): Add within_stmt parameter.
        * tree-ssa-dom.c (simplify_stmt_for_jump_threading): Add
        within_stmt parameter.
        * tree-ssa-propagate.c (fold_predicate_in): Update call to
        vrp_evaluate_conditional.
        * tree-ssa-threadedge.c
        (record_temporary_equivalences_from_stmts_at_dest): Change
        simplify parameter to take a second tree parameter.
        (simplify_control_stmt_condition): Likewise.
        (thread_across_edge): Likewise.
        * tree-flow.h (vrp_evaluate_conditional): Update declaration.
        (thread_across_edge): Likewise.
        * gcc/Makefile.in (tree-vrp.o): Depend upon intl.h.

2007-03-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_SAHF): New define.
        * config/i386/i386.c (ix86_tune_features) [X86_TUNE_USE_SAHF]:
        Also enable for m_K8, m_AMDFAM10 and m_CORE2.
        (x86_sahf): New global variable.
        (override_options): Add PTA_NO_SAHF to pta_flags enum.  Recode
        pta_flags masks using shifts.  Add PTA_NO_SAHF to x86_64 and
        nocona processor flags.  Set x86_sahf when PTA_NO_SAHF is not set
        in processor flags.  Do not unconditionally disable TARGET_USE_SAHF
        for 64-bit.
        (ix86_fp_comparison_sahf_cost): Return high value for !TARGET_SAHF.
        (ix86_expand_fp_compare): Check for TARGET_CMOVE or TARGET_SAHF
        when expanding fcomi/sahf based tests.
        (ix86_emit_fp_unordered_jump): Check for TARGET_SAHF when
        expanding sahf based alternative. Emit sahf based sequence when
        optimizing for code size.
        * config/i386/i386.md (x86_sahf_1): Do not disable for
        TARGET_64BIT, enable for TARGET_SAHF. 

2007-03-08  Martin Michlmayr  <tbm@cyrius.com>

        * tree-ssa-coalesce.c (fail_abnormal_edge_coalesce): Remove
        spurious whitespace from error message.

2007-03-08  Volker Reichelt  <reichelt@netcologne.de>

        PR c++/30852
        * c-common.c (fold_offsetof_1): Handle COMPOUND_EXPR.

2007-03-08  Alexandre Oliva  <aoliva@redhat.com>

        * c-decl.c (grokdeclarator): Disable warnings for anonymous
        bitfields.
        * tree-sra.c (instantiate_element): Propagate disabled warnings
        from the element itself to the created variable.

2007-03-07  Richard Henderson  <rth@redhat.com>

        PR target/30848
        * reg-stack.c (emit_swap_insn): If a malformed asm was seen,
        silently fix up the stack in the case of a missing register.

2007-03-07  Paul Brook  <paul@codesourcery.com>

        * config/arm/libunwind.S: Add .arch/.object_arch for armv4 builds.

2007-03-07  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/unwind-arm.c (struct wmmxd_regs, struct wmmxc_regs):
        New.
        (phase1_vrs): Use them.
        (DEMAND_SAVE_WMMXD, DEMAND_SAVE_WMMXC): New.
        (__gnu_Unwind_Save_WMMXD, __gnu_Unwind_Restore_WMMXD,
        __gnu_Unwind_Save_WMMXC, __gnu_Unwind_Restore_WMMXC): Declare.
        (restore_non_core_regs): Call __gnu_Unwind_Restore_WMMXD and
        __gnu_Unwind_Restore_WMMXC if required.
        (_Unwind_VRS_Pop): Implement iWMMXt support.
        * config/arm/libunwind.S (gnu_Unwind_Restore_WMMXD,
        gnu_Unwind_Save_WMMXD, gnu_Unwind_Restore_WMMXC,
        gnu_Unwind_Save_WMMXC): Define.

2007-03-07  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (vxworks_override_options): Declare.
        (VXWORKS_OVERRIDE_OPTIONS): Use it.
        * config/vxworks.c: Include target.h and toplev.h.
        (vxworks_override_options): New function.
        * config/t-vxworks (vxworks.o): Depend on $(TARGET_H) and toplev.h.

2007-03-07  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (override_options): Don't emit an error when
        -mstack-size is used without providing -mstack-guard.
        (s390_emit_prologue): Choose stack_guard value automatically if not
        provided via command line.
        * doc/invoke.texi: Adjust description of -mstack-guard and -mstack-size.

2007-03-07  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/i386.c (output_set_got): Add a GOT initialization
        sequence for VxWorks PIC.
        (legitimate_pic_address_disp_p): Allow UNSPEC_GOT wrappers
        around labels as well as symbols.  Use gotoff_operand instead
        of local_symbolic_operand.
        (legitimize_pic_address): Use gotoff_operand instead of
        local_symbolic_operand.  Use @GOT accesses for labels as
        well as symbols.
        (ix86_output_addr_diff_elt): Use PC-relative rather than
        GP-relative offsets for VxWorks PIC.
        (ix86_expand_move): Pass NULL_RTX to legitimize_pic_address unless
        no_new_pseudos.  Check whether the returned register is op0.
        * config/i386/i386.md (tablejump): Use PC-relative rather than
        GP-relative offsets for VxWorks PIC.
        * config/i386/predicates.md (gotoff_operand): New predicate.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_GOTT_BASE, VXWORKS_GOTT_INDEX): Undefine
        before defining.
        * config/vxworks-dummy.h: New file.
        * config/i386/i386.h: Include it.

2007-03-07  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (is_inlined_entry_point): New
        (add_high_low_attributes): Emit DW_AT_entry_pc along with
        DW_AT_ranges if the first subblock is the entry point.

2007-03-06  David Daney  <ddaney@avtrex.com>

        * doc/install.texi (mips-*-*): Change recommended binutils
        version.

2007-03-06  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for ATmega325P,
        ATmega3250P, ATmega329P, ATmega3290P, AT90USB82 and AT90USB162 
        devices.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * errors.h (warning, error, fatal, internal_error): Mark as cold.
        * predict.c (maybe_hot_bb): Cold functions are never hot; hot functions
        are hot.
        (probably_cold_bb_p): Cold functions are cold.
        (probably_never_executed_bb_p): Cold functions are cold.
        (tree_bb_level_predictions): Predict calls to cold functions as not
        taken.
        (compute_function_frequency): Check hot/cold attributes.
        * function.h (function_frequency): Update comments.
        * predict.def (PRED_COLD_FUNCTION): Predict cold function.
        * c-common.c (handle_hot_attribute, handle_cold_attribute): New.
        (c_common_att): Add cold and hot.

        * doc/extend.texi (hot,cold attributes): Document.

2007-03-06  Andrew Haley  <aph@redhat.com>

        * function.c (expand_function_end): Move blockage to just after we
        emit the label for the naked return from the function.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/att.h (ASM_OUTPUT_ASCII, ASM_OUTPUT_SKIP): Undefine
        before redefining.

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (reg_to_stack): Large models don't allow NAN to be
        loaded for constant large models.  Non-large 64bit PIC can do.
        * i386.h (CASE_VECTOR_MODE): Large PIC cases are 64bit.
        * cmodel.h: Add LARGE PIC.
        * i386.md (UNSPEC_PLTOFF): New.
        (UNSPEC_SET_RIP, UNSPEC_SET_GOT_OFFSET): New; renumber other unspecs as
        needed.
        (*call_1_rex64): Disable for large models.
        (*call_1_rex64_large): New.
        (*call_value_1_rex64): Disable for large models.
        (*call_value_1_rex64_large): New.
        (set_rip_rex4): New.
        (set_got_offset_rex64): New.
        * predicates.md (constant_call_address_operand): For large model
        constant calls are not possible.
        * i386-protos.h (construct_plt_address): Declare.
        * i386.c (override_options): Accept large models.
        (ix86_expand_prologue): Expand large PIC GOT pointer load.
        (legitimate_constant_p): Add new UNSPECs.
        (legitimate_pic_operand_p): Likewise.
        (legitimate_pic_address_disp_p): Disallow local symbols for large PICs.
        (legitimize_pic_address): Do easy RIP relative way for TLS only for
        non-large model.
        (output_pic_addr_const): Add PLTOFF.
        (ix86_output_addr_diff_elt): Output 64bit tables when needed.
        (ix86_expand_move): Legitimize pic address when in PIC mode.
        (construct_plt_address): New function.
        (ix86_expand_call): Offload the address to register and use GOT pointer
        for large model.
        * invoke.texi (mcmodel=large): Update documentation.

2007-03-06  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (x86_use_leave, x86_push_memory,
        x86_zero_extend_with_and, x86_movx, x86_double_with_add,
        x86_use_bit_test, x86_unroll_strlen, x86_deep_branch,
        x86_branch_hints, x86_use_sahf, x86_partial_reg_stall,
        x86_partial_flag_reg_stall, x86_use_himode_fiop, x86_use_simode_fiop,
        x86_use_mov0, x86_use_cltd, x86_read_modify_write, x86_read_modify,
        x86_split_long_moves, x86_promote_QImode, x86_fast_prefix, 
        x86_single_stringop, x86_qimode_math, x86_promote_qi_regs,
        x86_himode_math, x86_promote_hi_regs, x86_sub_esp_4, x86_sub_esp_8,
        x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves, 
        x86_partial_reg_dependency, x86_memory_mismatch_stall, 
        x86_prologue_using_move, x86_epilogue_using_move, x86_shift1,
        x86_sse_partial_reg_dependency, x86_sse_split_regs, 
        x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,
        x86_sse_load0_by_pxor, x86_use_ffreep, x86_use_incdec,
        x86_inter_unit_moves, x86_ext_80387_constants, x86_four_jump_limit,
        x86_schedule, x86_use_bt, x86_pad_returns,
        x86_use_xchgb): Merge into ...
        (ix86_tune_features): ... here.  New array.
        (x86_cmove, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
        x86_bswap): Merge into ...
        (ix86_arch_features): ... here.  New array.
        (x86_3dnow_a): Remove.
        (x86_accumulate_outgoing_args): Make static.
        (x86_arch_always_fancy_math_387): Make static.
        (ix86_tune_mask, ix86_arch_mask): Move ...
        (override_options): ... to local variables here.  Apply the
        appropriate mask to each element of ix86_arch_features and
        ix86_tune_features.  Adjust TARGET_CMOVE and TARGET_USE_SAHF
        as were done in the old macros.
        (standard_80387_constant_p): Use TARGET_EXT_80387_CONSTANTS.
        * config/i386/i386.h (x86_use_leave, x86_push_memory,
        x86_zero_extend_with_and, x86_use_bit_test, x86_cmove, x86_deep_branch,
        x86_branch_hints, x86_unroll_strlen, x86_double_with_add,
        x86_partial_reg_stall, x86_movx, x86_use_himode_fiop,
        x86_use_simode_fiop, x86_use_mov0, x86_use_cltd, x86_use_xchgb,
        x86_read_modify_write, x86_read_modify, x86_split_long_moves,
        x86_promote_QImode, x86_single_stringop, x86_fast_prefix,
        x86_himode_math, x86_qimode_math, x86_promote_qi_regs,
        x86_promote_hi_regs, x86_integer_DFmode_moves, x86_add_esp_4,
        x86_add_esp_8, x86_sub_esp_4, x86_sub_esp_8,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_prologue_using_move,
        x86_epilogue_using_move, x86_decompose_lea,
        x86_arch_always_fancy_math_387, x86_shift1,
        x86_sse_partial_reg_dependency, x86_sse_split_regs,
        x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,        
        x86_sse_load0_by_pxor, x86_use_ffreep, x86_inter_unit_moves,
        x86_schedule, x86_use_bt, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
        x86_use_incdec, x86_pad_returns, x86_bswap,
        x86_partial_flag_reg_stall): Remove.
        (enum ix86_tune_indices): New.
        (ix86_tune_features): New.
        (TARGET_USE_LEAVE, TARGET_PUSH_MEMORY, TARGET_ZERO_EXTEND_WITH_AND,
        TARGET_USE_BIT_TEST, TARGET_UNROLL_STRLEN,
        TARGET_DEEP_BRANCH_PREDICTION, TARGET_BRANCH_PREDICTION_HINTS,
        TARGET_DOUBLE_WITH_ADD, TARGET_USE_SAHF, TARGET_MOVX,
        TARGET_PARTIAL_REG_STALL, TARGET_PARTIAL_FLAG_REG_STALL,
        TARGET_USE_HIMODE_FIOP, TARGET_USE_SIMODE_FIOP, TARGET_USE_MOV0,
        TARGET_USE_CLTD, TARGET_USE_XCHGB, TARGET_SPLIT_LONG_MOVES,
        TARGET_READ_MODIFY_WRITE, TARGET_READ_MODIFY, TARGET_PROMOTE_QImode,
        TARGET_FAST_PREFIX, TARGET_SINGLE_STRINGOP, TARGET_QIMODE_MATH,
        TARGET_HIMODE_MATH, TARGET_PROMOTE_QI_REGS, TARGET_PROMOTE_HI_REGS,
        TARGET_ADD_ESP_4, TARGET_ADD_ESP_8, TARGET_SUB_ESP_4,
        TARGET_SUB_ESP_8, TARGET_INTEGER_DFMODE_MOVES,
        TARGET_PARTIAL_REG_DEPENDENCY, TARGET_SSE_PARTIAL_REG_DEPENDENCY,
        TARGET_SSE_UNALIGNED_MOVE_OPTIMAL, TARGET_SSE_SPLIT_REGS,
        TARGET_SSE_TYPELESS_STORES, TARGET_SSE_LOAD0_BY_PXOR,
        TARGET_MEMORY_MISMATCH_STALL, TARGET_PROLOGUE_USING_MOVE,
        TARGET_EPILOGUE_USING_MOVE, TARGET_SHIFT1, TARGET_USE_FFREEP,
        TARGET_INTER_UNIT_MOVES, TARGET_FOUR_JUMP_LIMIT, TARGET_SCHEDULE,
        TARGET_USE_BT, TARGET_USE_INCDEC, TARGET_PAD_RETURNS,
        TARGET_EXT_80387_CONSTANTS): Use it.
        (enum ix86_arch_indices): New.
        (ix86_arch_features): New.
        (TARGET_CMOVE, TARGET_CMPXCHG, TARGET_CMPXCHG8B, TARGET_XADD,
        TARGET_BSWAP): Use it.
        (ix86_tune_mask, ix86_arch_mask): Remove.

2007-03-06  Joseph Myers  <joseph@codesourcery.com>

        PR bootstrap/31020
        * configure.ac (CROSS_SYSTEM_HEADER_DIR, build_system_header_dir):
        Define using $${sysroot_headers_suffix}.
        * configure: Regenerate.
        * cppdefault.c (cpp_include_defaults): Make FIXED_INCLUDE_DIR a
        multilib-suffixed directory if SYSROOT_HEADERS_SUFFIX_SPEC
        defined.
        * doc/invoke.texi (-print-sysroot-headers-suffix): Document.
        * gcc.c (print_sysroot_headers_suffix): New.
        (option_map): Include --print-sysroot-headers-suffix.
        (display_help): Mention -print-sysroot-headers-suffix.
        (process_command): Handle -print-sysroot-headers-suffix.
        (do_spec_1): Append multilib directory to include-fixed path if
        sysroot suffixes in use.
        (main): Handle -print-sysroot-headers-suffix.
        * Makefile.in (start.encap): Don't depend on xlimits.h
        (xlimits.h): Remove.
        (stmp-int-hdrs): Don't depend on xlimits.h.  Inline generation of
        limits.h for each multilib in fixinc_list.
        (fixinc_list, s-fixinc_list): New.
        (stmp-fixinc): Depend on fixinc_list.  If not copying headers,
        generate them for each multilib in fixinc_list.
        (stmp-fixproto): Use include-fixed.  Run fixproto for each
        multilib in fixinc_list.
        (mostlyclean): Don't remove xlimits.h.
        (clean): Remove include-fixed.
        (real-install-headers-tar, real-install-headers-cpio,
        real-install-headers-cp): Don't copy include, only include-fixed.
        (install-mkheaders): Depend on fixinc_list.  Don't depend on
        xlimits.h.  Save limits.h files for each multilib in fixinc_list.
        Always save mkinstalldirs.  Preserve ${sysroot_headers_suffix} in
        SYSTEM_HEADER_DIR setting in mkheaders.conf.

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * regstack.c (reg_to_stack): When in 64bit PIC mode, we still can load
        NANs easilly.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac: Allow tm_file to contain build-directory files.
        * configure: Regenerate.
        * config.gcc (m68k-*-uclinux*): Add ./sysroot-suffix.h to tm_file.
        * config/m68k/t-uclinux (sysroot-suffix.h): New target.
        * config/m68k/print-sysroot-suffix.sh: New file.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (PIC_OFFSET_TABLE_REGNUM): Use the REGNO
        of pic_offset_table_rtx if reload_completed.
        (CONDITIONAL_REGISTER_USAGE): Use PIC_REG instead of
        PIC_OFFSET_TABLE_REGNUM.
        * config/m68k/m68k.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Always
        return true.
        (m68k_save_reg): Use PIC_REG instead of PIC_OFFSET_TABLE_REGNO.
        (m68k_output_mi_thunk): Rewrite to use RTL.  Honor vcall_offset.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
        functions that call eh_return.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
        functions that need a constant pool.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        PR target/28181
        * config/m68k/m68k-protos.h (m68k_secondary_reload_class): Declare.
        (m68k_preferred_reload_class): Likewise.
        * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Remove duplicated comment.
        (SECONDARY_RELOAD_CLASS): Define.
        (PREFERRED_RELOAD_CLASS): Use m68k_preferred_reload_class.
        (LIMIT_RELOAD_CLASS): Delete.
        * config/m68k/m68k.c (m68k_regno_mode_ok): Don't prevent address
        registers from storing bytes.
        (m68k_secondary_reload_class): New function.
        (m68k_preferred_reload_class): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Remove special case for
        leaf functions.
        (m68k_expand_prologue): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (output_sibcall): Declare.
        (mips_expand_epilogue): Add a bool parameter.
        (m68k_legitimize_sibcall_address): Declare.
        * config/m68k/m68k.c (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
        (m68k_expand_epilogue): Add a parameter to select between sibling
        and normal epilogues.  Only generate a return for the latter.
        (m68k_ok_for_sibcall_p): New function.
        (m68k_legitimize_sibcall_address, output_sibcall): New functions.
        * config/m68k/m68k.md (sibcall, *sibcall): New patterns.
        (sibcall_value, *sibcall_value): Likewise.
        (*call, *call_value): Require !SIBLING_CALL_P.
        (epilogue): Update call to m68k_expand_epilogue.
        (sibcall_epilogue): New pattern.
        * config/m68k/predicates.md (const_call_operand): Say that this
        predicate applies to sibling calls too.
        (sibcall_operand): New predicate.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movsf_cf_soft): Provide the same non-mov3q
        alternatives as movsi_cf.
        (movsf_cf_hard): Add commentary.

2007-03-06  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (m68k_interrupt_function_p): Declare.
        (m68k_movem_pattern_p, m68k_output_movem): Likewise.
        (m68k_expand_prologue, m68k_expand_epilogue): Likewise.
        * config/m68k/m68k.h (EPILOGUE_USES): Define.  Treat all registers
        as being live on exit from an interrupt function.
        (PRINT_OPERAND_PUNCT_VALID_P): Return true for '?'.
        * config/m68k/m68k.c (MIN_MOVEM_REGS, MIN_FMOVEM_REGS): New macros.
        (m68k_frame): Remove reg_rev_mask and fpu_rev_mask.
        (TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Delete.
        (m68k_interrupt_function_p): Globalize.
        (m68k_compute_frame_layout): Remove reverse mask code.
        (m68k_emit_movem, m68k_set_frame_related): New functions.
        (m68k_output_function_prologue): Delete in favor of...
        (m68k_expand_prologue): ...this new function.
        (m68k_output_function_epilogue): Delete in favor of...
        (m68k_expand_epilogue): ...this new function.
        (m68k_split_offset, m68k_movem_pattern_p, m68k_output_movem): New
        functions.
        (print_operand): Handle %?.
        * config/m68k/m68k.md (UNSPEC_SIN, UNSPEC_COS): Remove excess space.
        (UNSPEC_GOT, A1_REG, PIC_REG, FP0_REG): New constants.
        (prologue, epilogue): New patterns.
        (return): Turn into a define_expand.
        (*return): New pattern, derived from old "return" pattern.  Use rte
        rather than rts for interrupt functions.  Only use rtd if the pop
        count is nonzero.
        (*m68k_store_multiple, *m68k_store_multiple_automod): New patterns.
        (*m68k_load_multiple, *m68k_load_multiple_automod): Likewise.
        (link, *link, unlink, *unlink, load_got): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        PR target/23482
        PR target/17114
        * config/m68k/m68k-protos.h (m68k_legitimate_base_reg_p): Declare.
        (m68k_legitimate_index_reg_p, m68k_legitimate_address_p): Likewise.
        (m68k_matches_q_p, m68k_matches_u_p): Likewise.
        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Use m68k_matches_q_p
        and m68k_matches_u_p.
        (PCREL_GENERAL_OPERAND_OK, LEGITIMATE_BASE_REG_P): Delete.
        (INDIRECTABLE_1_ADDRESS_P, GO_IF_NONINDEXED_ADDRESS): Delete.
        (GO_IF_INDEXABLE_BASE, GO_IF_INDEXING, GO_IF_INDEXED_ADDRESS): Delete.
        (LEGITIMATE_INDEX_REG_P, LEGITIMATE_INDEX_P): Delete.
        (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Delete.
        (REG_STRICT_P): New macro.
        (LEGITIMATE_PIC_OPERAND_P): Use REG_STRICT_P rather than
        PCREL_GENERAL_OPERAND_OK.
        (REG_OK_FOR_BASE_P): Merge definitions.  Use REG_STRICT_P and
        m68k_legitimate_base_reg_p.
        (REG_MODE_OK_FOR_INDEX_P): Likewise m68k_legitimate_index_reg_p.
        (GO_IF_LEGITIMATE_ADDRESS): Likewise m68k_legitimate_address_p.
        (PIC_CASE_VECTOR_ADDRESS): Update comment.
        * config/m68k/m68k.c (m68k_address): New structure.
        (m68k_legitimate_base_reg_p, m68k_legitimate_index_reg_p)
        (m68k_decompose_index, m68k_legitimate_constant_address_p)
        (m68k_jump_table_ref_p, m68k_decompose_address)
        (m68k_legitimate_address_p, m68k_legitimate_mem_p, m68k_matches_q_p)
        (m68k_matches_u_p): New functions.
        (print_operand_address): Rewrite to use m68k_decompose_index.

2007-03-05  David Taylor  <dtaylor@emc.com>

        * gcc.c: Correct copyright date in --version output.

2007-03-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: In unamed move patterns, disparge copies between general
        and floating point registers using '?' modifier.  Don't include 'f'
        constraint for register preferences in DImode, SImode, HImode and
        QImode patterns.  Likewise for 'r' in DFmode and SFmode patterns.
        Remove constraints for copies between general and floating registers
        in soft-float DFmode pattern.
        (movdf): Fail if operand1 is a CONST_DOUBLE and operand0 is a hard
        floating register.
        (movsf): Likewise. 

2007-03-05  Mike Stump  <mrs@apple.com>

        * c-common.c (targetcm): Add.
        * c-opts.c (c_common_handle_option): Handle language specific
        target options.
        * opts.c (handle_option): Verify language for target options, if
        any are given.
        * opth-gen.awk: Add CL_LANG_ALL.
        * target-def.h (TARGET_HANDLE_C_OPTION): Add.
        (TARGETCM_INITIALIZER): Add.
        * target.h (struct gcc_targetcm): Add.
        (targetcm): Add.
        * targhooks.c (default_handle_c_option): Add.
        * targhooks.h (default_handle_c_option): Add.
        * doc/tm.texi (TARGET_HANDLE_C_OPTION): Add.

        * config/darwin.opt (iframework): Add.
        * config/darwin.h (TARGET_HAS_TARGETCM): Add.
        * config/darwin-c.c (handle_c_option): Add.
        (TARGET_HANDLE_C_OPTION): Add.
        (targetcm): Add.
        * doc/invoke.texi (Darwin Options): Add -iframework.

2007-03-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_integer): Fix nearbyint/rint -> *lrint
        conversion.

2007-03-05  Ian Lance Taylor  <iant@google.com>

        * c.opt (fgnu89-inline): New option.
        * c-opts.c (c_common_post_options): Set default value for
        flag_gnu89_inline.
        * c-decl.c (WANT_C99_INLINE_SEMANTICS): Remove.
        (pop_scope): Check flag_gnu89_inline rather than flag_isoc99 for
        inline functions.
        (diagnose_mismatched_decls, merge_decls, start_decl): Likewise.
        (grokdeclarator, start_function): Likewise.
        * c-cppbuiltin.c (c_cpp_builtins): Define either
        __GNUC_GNU_INLINE__ or __GNUC_STDC_INLINE__.
        * doc/invoke.texi (Option Summary): Mention -fgnu89-inline.
        (C Dialect Options): Document -fgnu89-inline.
        * doc/extend.texi (Function Attributes): Explain what the
        gnu_inline attribute does.
        * doc/cpp.texi (Common Predefined Macros): Document
        __GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.

2007-03-05  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31034
        * tree-vrp.c (extract_range_from_assert): Don't try to handle a
        half-range if the other side is an overflow infinity.

2007-03-05  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config.gcc (bfin*-uclinux*): Use t-bfin-uclinux.
        (bfin*-linux-uclibc*): New configuration.
        * config/linux.h (LINK_GCC_C_SEQUENCE_SPEC): Undefined before
        defining.
        * config/bfin/linux.h: New file.
        * config/bfin/libgcc-bfin.ver: New file.
        * config/bfin/t-bfin-uclinux: New file.
        * config/bfin/t-bfin-linux: New file.
        * config/bfin/uclinux.h (LINUX_TARGET_OS_CPP_BUILTINS): New macro.
        (TARGET_OS_CPP_BUILTINS): New macro.

2007-03-05  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_binary): Remove duplicate folding
        of comparison of non-null ADDR_EXPR against null.

2007-03-05  Richard Guenther  <rguenther@suse.de>
            Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26420
        * tree-vectorizer.c (vectorize_loops): Bail out early if there
        are no loops in the function.  Only print the number of
        vectorized loops if it is greater than zero or we are supposed
        to print information about unvectorized loops.

2007-03-05  Revital Eres  <eres@il.ibm.com>

        * gcc.dg/var-expand1.c: New test.
        * loop-unroll.c (analyze_insn_to_expand_var): Add dump info
        when an accumulator is expanded.

2007-03-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR other/30465
        * c-common.c (convert_and_check): Don't give warnings for
        conversion if 'expr' already overflowed.
        
2007-03-04  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/30744
        * fold-const.c (fold_comparison): Enforce type consistency when
        transforming ~X op ~Y to Y op X, and ~X op C to X op' ~C.

2007-03-04  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-address.c (create_mem_ref): Do not put an expression
        containing a cast to the base of TARGET_MEM_REF.

2007-03-04  Martin Michlmayr  <tbm@cyrius.com>

        * tree.c (tree_contains_struct_check_failed): Remove spurious
        whitespace from error message.

2007-03-04 Andrew Pinski <andrew_pinski@playstation.sony.com>

        PR target/30406
        * config/rs6000/rs6000.c (rs6000_function_value): Look at bit size
        instead of precision.

2007-03-04  Roman Zippel <zippel@linux-m68k.org>
            Nathan Sidwell  <nathan@codesourcery.com>

        * emit-rtl.c (find_auto_inc): New.
        (try_split): recreate REG_INC notes,
        Use regular for loops rather than whiles.

2007-03-03  Andreas Schwab  <schwab@suse.de>

        * configure.ac (HAVE_AS_REL16): Move test back to correct place.
        * configure: Regenerate.

2007-03-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (ATTR_MATHFN_FPROUNDING): Rely on
        flag_rounding_math, not flag_unsafe_math_optimizations.

        * c-pretty-print.c (pp_c_direct_abstract_declarator): Use
        fold_build2.
        * config/alpha/alpha.c (alpha_fold_builtin_zapnot,
        alpha_fold_vector_minmax): Likewise.
        * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
        * config/sparc/sparc.c (sparc_gimplify_va_arg): Likewise.

2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-sra.c (sra_walk_fns) <ldst>: Document new restriction.
        (sra_walk_modify_expr) <rhs_elt>: Treat the reference as a use
        if the lhs has side-effects.
        <lhs_elt>: Treat the reference as a use if the rhs has side-effects.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TUNEMASK): Remove define.
        (ARCHMASK): Remove define.
        (TARGET_*): Use ix86_tune_mask variable instead of TUNEMASK.
         Use ix86_arch_mask variable instead of ARCHMASK.
        * config/i386/i386.c (override_options): Ditto.
        (standard_80387_constant_p): Ditto.

2007-03-02  Ian Lance Taylor  <iant@google.com>

        Used signed infinities in VRP.
        * tree-vrp.c (uses_overflow_infinity): New static function.
        (supports_overflow_infinity): New static function.
        (make_overflow_infinity): New static function.
        (negative_overflow_infinity): New static function.
        (positive_overflow_infinity): New static function.
        (is_negative_overflow_infinity): New static function.
        (is_positive_overflow_infinity): New static function.
        (is_overflow_infinity): New static function.
        (overflow_infinity_range_p): New static function.
        (compare_values_warnv): New function split out of compare_values.
        (compare_value): Call it.
        (set_value_range_to_nonnegative): Add overflow_infinity
        parameter.  Change caller.
        (vrp_expr_computes_nonnegative): Add strict_overflow_p parameter.
        Change callers.
        (vrp_expr_computes_nonzero): Likewise.
        (compare_ranges, compare_range_with_value): Likewise.
        (compare_name_with_value, compare_names): Likewise.
        (vrp_evaluate_conditional): Likewise.
        (set_value_range): Handle infinity
        (vrp_operand_equal_p, operand_less_p): Likewise.
        (extract_range_from_assert): Likewise.
        (vrp_int_const_binop): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        (extract_range_from_comparison): Likewise.
        (extract_range_from_expr): Likewise.
        (dump_value_range): Likewise.
        (vrp_visit_cond_stmt, vrp_visit_phi_node): Likewise.
        (test_for_singularity): Likewise.
        (vrp_int_const_binop): Remove inline qualifier.
        (adjust_range_with_scev): Add comment.
        * tree-flow.h (vrp_evaluate_conditional): Update declaration.

2007-03-02  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-structalias.c (could_have_pointers): Tidy.
        (get_constraint_for): Likewise.
        (do_structure_copy): Likewise.
        (find_func_aliases): Fix references to MODIFY_EXPR.
        (intra_create_variable_infos): Tidy.
        * tree-ssa-operands.c (add_virtual_operand): Add argument
        IS_CALL_SITE.
        When adding members of alias sets, if IS_CALL_SITE is true and
        the symbol is not call-clobbered, skip it.
        Adjust all callers.

2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>

        * config/alpha/alpha.c (alpha_gp_save_rtx): Insert the insns at the
        entry by means of emit_insn_at_entry.

2007-03-02  Richard Henderson  <rth@redhat.com>

        * expr.h (promoted_input_arg): Remove decl.
        * function.c (promoted_input_arg): Merge into ...
        * combine.c (setup_incoming_promotions): ... only caller.
        Rearrange to avoid double loop.

2007-03-02  Ben Elliston  <bje@au.ibm.com>
            Peter Bergner  <bergner@vnet.ibm.com>
            Janis Johnson  <janis187@us.ibm.com>

        * config/rs6000/dfp.md: New file.
        * config/rs6000/rs6000.md: Include dfp.md.
        (add<mode>3_internal1): Disable for DECIMAL_FLOAT_MODE_P operands.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Handle DDmode
        and TDmode decimal float modes in FP registers.
        (num_insns_constant): Likewise.
        (rs6000_legitimate_offset_address_p): Likewise.
        (rs6000_legitimize_address): Likewise.
        (rs6000_legitimize_reload_address): Likewise.
        (rs6000_legitimate_address): Likewise.
        (rs6000_emit_move): Likewise.
        (function_arg_boundary): Likewise.
        (function_arg_advance): Likewise.
        (rs6000_darwin64_record_arg_recurse): Likewise.
        (function_arg): Likewise.
        (rs6000_gimplify_va_arg): Likewise.
        (rs6000_split_multireg_move): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_register_move_cost): Likewise.
        (rs6000_function_value): Likewise.
        (rs6000_libcall_value): Likewise.

2007-03-02  Richard Sandiford  <richard@codesourcery.com>

        * config/t-vxworks (LIMITS_H_TEST): Define to true for VxWorks.

2007-03-02  Richard Sandiford  <richard@codesourcery.com>

        * config/t-vxworks (LIBGCC2_INCLUDES): Pass -nostdinc.
        Use $MULTIDIR to choose between the kernel and RTP headers,
        and use $WIND_BASE and $WIND_USR to locate them.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Put initialization of
        ix86_tune_mask and ix86_arch_mask to the correct place.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>
            Michael Meissner  <michael.meissner@amd.com>

        PR target/31019
        * config/i386/i386.h (TUNEMASK): Redefine to use ix86_tune_mask.
        (ARCHMASK): Define.
        (TARGET_CMOVE): Use ARCHMASK.
        (TARGET_CMPXCHG): Ditto.
        (TARGET_CMPXCHG8B): Ditto.
        (TARGET_XADD): Ditto.
        (TARGET_BSWAP): Ditto.
        * config/i386/i386.c (ix86_tune_mask): New global variable.
        (ix86_arch_mask): Ditto.
        (override_options): Initialize ix86_tune_mask and
        ix86_arch_mask. Use ARCHMASK to clear MASK_NO_FANCY_MATH_387 in
        target_flags.

2007-03-02  Ben Elliston  <bje@au.ibm.com>

        PR 30992
        * config/dfp-bit.c (DFP_TO_INT): Initialise qval with "1.".

2007-03-02  Joseph Myers  <joseph@codesourcery.com>

        * target.h (init_dwarf_reg_sizes_extra): New target hook.
        * target-def.h (TARGET_INIT_DWARF_REG_SIZES_EXTRA): New default.
        * doc/tm.texi (TARGET_INIT_DWARF_REG_SIZES_EXTRA): Document.
        * dwarf2out.c (expand_builtin_init_dwarf_reg_sizes): Call this
        hook.
        * config/rs6000/rs6000.c (TARGET_INIT_DWARF_REG_SIZES_EXTRA,
        rs6000_init_dwarf_reg_sizes_extra): New.
        * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Support
        SPE register high parts.

2007-03-01  Brooks Moses  <brooks.moses@codesourcery.com>

        * Makefile.in: Add install-pdf target as
        copied from automake v1.10 rules.
        * configure.ac: Add install-pdf to target list.
        * configure: Regenerate.

2007-03-01  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_legitimate_index_p): Limit iWMMXt addressing
        modes to LDRD for DImode.
        (output_move_double): Fixup out of range ldrd/strd.
        (vfp_secondary_reload_class): Rename...
        (coproc_secondary_reload_class): ... to this.  Add wb argument.
        * config/arm/arm.h (SECONDARY_OUTPUT_RELOAD_CLASS): Use
        coproc_secondary_reload_class for CLASS_IWMMXT.
        (SECONDARY_INPUT_RELOAD_CLASS): Ditto.
        * arm-protos.h (coproc_secondary_reload_class): Update prototype.

2007-03-01  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-prefetch.c (determine_unroll_factor):  Bound the unroll
        factor by the estimated number of iterations.
        (loop_prefetch_arrays): Do not prefetch in loops that iterate less than
        prefetch latency.

        * config/i386/driver-i386.c (describe_cache, detect_caches_amd,
        decode_caches_intel, detect_caches_intel): New functions.
        (host_detect_local_cpu): Use detect_caches_amd and
        detect_caches_intel.

2007-03-01  Richard Henderson  <rth@redhat.com>

        * expr.c (emit_move_complex_push): Export.
        (emit_move_complex_parts): Split out from ...
        (emit_move_complex): ... here.
        * expr.h (emit_move_complex_push, emit_move_complex_parts): Declare.
        * config/i386/i386.md (movcdi): New.

2007-03-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_modes_tieable_p): Fix typo, use also
        size of mode1 to check for tieable modes in MMX case.

2007-03-01  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (rtlanal.o): Depend on tree.h.
        * rtl.h (offset_within_section_p, split_const): Declare.
        * rtlanal.c: Include tree.h.
        (offset_within_block_p): New function, taken from
        mips_offset_within_object_p.
        (split_const): New function, taken from mips_split_const.
        * config/m68k/m68k-protos.h (m68k_illegitimate_symbolic_constant_p):
        Declare.
        * config/m68k/m68k.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P): Define.
        (CONSTANT_ADDRESS_P): Only accept legitimate constants.
        (LEGITIMATE_CONSTANT_P): Check m68k_illegitimate_symbolic_constant_p.
        * config/m68k/m68k.c (TARGET_CANNOT_FORCE_CONST_MEM): Define.
        (m68k_illegitimate_symbolic_constant_p): New function.
        * config/m68k/m68k.md (movsi): Remove misleading predicates.
        If M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P and the source is a
        symbolic constant that might be outside the symbol's section,
        move the symbol first and then add the offset.
        * config/m68k/uclinux.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P):
        Override.
        * config/mips/mips.c (mips_split_const): Delete.
        (mips_offset_within_object_p): Delete.
        (mips_symbolic_constant_p): Use offset_within_section_p and
        split_const instead of mips_offset_within_object_p and
        mips_split_const.
        (mips_cannot_force_const_mem, mips_const_insns, mips_unspec_address)
        (mips_legitimize_const_move, print_operand_reloc)
        (mips_dangerous_for_la25_p): Use split_const instead of
        mips_split_const.

2007-02-28  Eric Christopher  <echristo@apple.com>

        * Makefile.in (install-include-dir): Don't rm -rf include.

2007-02-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30364
        * fold-const.c (fold_binary): Do not associate expressions
        with more than one variable for integer types that do not wrap.

2007-02-28  Sandra Loosemore  <sandra@codesourcery.com>

        * builtins.c (fold_builtin_call_list, fold_builtin_call_valist):
        Delete, and replace with...
        (fold_builtin_call_array): This.  Update callers to use it.
        * fold-const.c (fold_build_call_list): Delete, and replace with...
        (fold_build_call_array): This.
        (fold_build_call_list_initializer): Delete, and replace with...
        (fold_build_call_array_initializer): This.
        * tree.h: Update declarations to reflect above changes.

        * c-typeck.c (build_function_call): Store converted arguments
        in a stack-allocated array instead of building a list.
        (convert_arguments): Store arguments in the array passed in as an
        argument, and return the actual number of arguments.
        * c-format.c: (check_function_format): Pass arguments in an
        array instead of a list.
        * c-common.c (check_function_nonnull): Likewise.
        (check_function_sentinel): Likewise.
        (check_function_arguments): Likewise.
        * c-common.h: Update declarations to reflect above changes.

2007-02-28  Jan Hubicka  <jh@suse.cz>

        * predict.def (PRED_TREE_EARLY_RETURN, PRED_CONST_RETURN,
        PRED_NEGATIVE_RETURN): Update outcomes.

2007-02-28  Bernd Schmidt  <bernd.schmidt@analog.com>

        * calls.c (emit_library_call_value_1): Handle partial registers
        correctly when building up CALL_INSN_FUNCTION_USAGE.

2007-02-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/predicates.md (move_src_operand): Allow zero for mode.
        * pa/pa.md: Fix constraints for zero CONST_DOUBLE in 64-bit DFmode
        move pattern.

2007-02-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30970
        * config/i386/sse.md (*mov<mode>_internal, *movv4sf_internal,
        *movv2df_internal): Enable pattern only for valid operand
        combinations.
        * config/i386/i386.c (ix86_modes_tieable_p): For SSE registers,
        tie only 128bit modes. For MMX registers, tie only 64bit modes.

2007-02-27  Mike Stump  <mrs@apple.com>

        * config/darwin-crt3.c: Avoid compilation when compiling for a
        kext multilib.

2007-02-27  Joseph Myers  <joseph@codesourcery.com>

        * Makefile.in (PREPROCESSOR_DEFINES, test-protoize-simple): Define
        FIXED_INCLUDE_DIR.
        (stmp-int-hdrs, stmp-fixinc, install-headers): Use include-fixed
        for fixed headers and limits.h.
        (install-include-dir, install-headers-tar, install-headers-cpio,
        install-headers-cp, real-install-headers-tar,
        real-install-headers-cpio, real-install-headers-cp): Handle
        include-fixed as well as include.
        (install-mkheaders): Don't install files that go only in include
        not include-fixed.
        * cppdefault.c (cpp_include_defaults): Separate FIXED_INCLUDE_DIR
        from GCC_INCLUDE_DIR.
        * gcc.c (process_command): Remove special -BstageN/ handling.
        (do_spec_1): Add include-fixed directories.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/t-bfin-elf (LIB1ASMFUNCS): Add _umulsi3_highpart and
        _smulsi3_highpart.
        * config/bfin/lib1funcs.asm (___umulsi3_highpart, ___smulsi3_highpart):
        New functions.
        * config/bfin/bfin.md (smulsi3_highpart, umulsi3_highpart): New
        patterns.

2007-02-27  Mark Mitchell  <mark@codesourcery.com>

        * c-common.c (get_priority): Add check for
        SUPPORTS_INIT_PRIORITY.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (doloop_end): FAIL if counter reg isn't SImode.

        * config/bfin/bfin.c: Include "cfglayout.h".
        (MAX_LSETUP_DISTANCE): New macro.
        (struct loop_info): New members incoming, incoming_src and
        incoming_dest.  Delete member predecessor.
        (length_for_loop): New function.
        (bfin_optimize_loop): Handle more different loop structures.
        (bfin_discover_loop): Rework detection of predecessor blocks by
        examining incoming edges.
        (bfin_discover_loops, bfin_free_loops): New functions, broken out of
        bfin_reorg_loops.
        (bfin_reorder_loops): New function.
        (bfin_reorg_loops): Use these three new functions.

        * config/bfin/bfin.h (enum reg_class, REG_CLASS_NAMES,
        REG_CLASS_CONTENTS): Add D0REGS through D7REGS.
        (CONSTRAINT_LEN): Add entry for 'q'.
        (REG_CLASS_FROM_CONSTRAINT): Renamed from REG_CLASS_FROM_LETTER.
        Add 'q' constraints.
        (REGNO_REG_CLASS): For R0 through R7, return corresponding regclass.
        (CLASS_LIKELY_SPILLED_P): True for R0, R1 and R2.

        * config/bfin/bfin.md (add_with_carry): New pattern.
        (s_or_u, su_optab, su_modifier): New code macros/attrs.
        (<su_optab>hisi_ll, <su_optab>hisi_lh, <su_optab>hisi_hl,
        <su_optab>hisi_hh): Renamed from mulhisi_xx patterns; macroized to
        support unsigned multiplies too.  Removed incorrect commutativity from
        operand 1 constraint where appropriate.
        (usmulhisi_ull, usmulhisi_ulh, usmulhisi_uhl, usmulhisi_uhh): New
        patterns.
        (<su_optab>hisi_ll_lh, <su_optab>hisi_ll_hl, <su_optab>hisi_ll_hh,
        <su_optab>hisi_lh_hl, <su_optab>hisi_lh_hh, <su_optab>hisi_hl_hh):
        New patterns.
        (usmulhisi_ll_lul, usmulhisi_ll_luh, usmulhisi_ll_hul,
        usmulhisi_ll_huh, usmulhisi_lh_lul, usmulhisi_lh_luh, usmulhisi_lh_hul,
        usmulhisi_lh_huh, usmulhisi_hl_lul, usmulhisi_hl_luh, usmulhisi_hl_hul,
        usmulhisi_hl_huh, usmulhisi_hh_lul, usmulhisi_hh_luh, usmulhisi_hh_hul,
        usmulhisi_hh_huh): New patterns.

        * config/bfin/bfin.md (ssashiftv2hi3, ssashifthi3, lshiftv2hi3,
        lshifthi3): Fix output template to use half reg for operand 2.

        * config/bfin/bfin.c (bfin_output_mi_thunk): Use R3 as scratch reg
        instead of R2.

        * config/bfin/bfin.md (rotl16, rotlsi3, rotrsi3): New patterns.

2007-02-27  Andreas Schwab  <schwab@suse.de>

        * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-common.texi.

2007-02-27  Jan Hubicka  <jh@suse.cz>

        * predict.c (last_basic_block_p): Remove.
        (tree_estimate_probability): Update return heuristic for commonized
        return blocks.

2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>

        * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-vers.texi dependency.

2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/include/gcc-common.texi (versionsubtitle): New macro.
        * doc/cpp.texi: Standardize title page.
        * doc/cppinternals.texi: Likewise.
        * doc/gcc.texi: Standardize title page, remove version number
        from copyright page.
        * doc/gccint.texi: Likewise.
        * doc/install.texi: Standardize title page, add table of
        contents.

2007-02-26  Jan Hubicka  <jh@suse.cz>

        * predict.def: Set outcomes according to more recent results.
        (PRED_LOOP_CONDITION, PRED_LOOP_PRECONDITIONING, PRED_LOOP_HEADER):
        Remove dead predictors.
        * predict.c (return_prediction): Fix pasto.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * loop-iv.c (simplify_using_initial_values): Fix oversight in previous
        change; avoid a memory leak when returning early.

2007-02-26  Mark Mitchell  <mark@codesourcery.com>

        * c-decl.c (static_ctors): Move to c-common.c.
        (static_dtors): Likewise.
        (finish_function): Use c_record_cdtor_fn.
        (build_cdtor): Move to c-common.c.
        (c_write_global_declarations): Use c_build_cdtor_fns.
        * c-common.h (static_ctors): Declare.
        (static_dtors): Likewise.
        (c_record_cdtor_fn): Likewise.
        (c_build_cdtor_fns): Likewise.
        * c-common.c (static_ctors): New variable.
        (static_dtors): Likewise.
        (c_record_cdtor_fn): New function.
        (build_cdtor): Move from c-decl.c
        (c_build_cdtor_fns): New function.

        * output.h (assemble_addr_to_section): Declare.
        (get_cdtor_priority_section): Likewise.
        * varasm.c (assemble_addr_to_section): New function.
        (get_cdtor_priority_section): Likewise.
        (default_named_section_asm_out_destructor): Use them.
        (destor_dtor_section_asm_out_destructor): Likewise.
        (default_named_section_asm_out_constructor): Likewise.
        (default_ctor_section_asm_out_constructor): Likewise.
        * config.gcc (*-*-vxworks*): Include vxworks.o.
        * config/t-vxworks (vxworks.o): New target.
        * config/vxworks.h (ALWAYS_NUMBER_CTORS_SECTIONS): Remove.
        (TARGET_ASM_CONSTRUCTOR): Define.
        (TARGET_ASM_DESTRUCTOR): Likewise.
        (vxworks_asm_out_constructor): Declare.
        (vxworks_asm_out_destructor): Likewise.

        * c-common.c (get_priority): Check that we have not just an
        INTEGER_CST, but an integer constant with integeral type.

2007-02-25  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/30938
        * tree-vect-transform.c (vectorizable_call): Fix off-by-one error:
        use &dt[nargs-1] instead of &dt[nargs] in the call to
        vect_is_simple_use().

2007-02-25  Ulrich Weigand  <uweigand@de.ibm.com>

        * reload.c (find_reloads_address_1): Handle PLUS expressions resulting
        from register elimination as PRE_MODIFY / POST_MODIFY increments.
        Do not attempt to handle MEM inside auto-inc expressions.
        * reload1.c (eliminate_regs_1): Do not attempt to handle elimination
        of a register modified by an auto-inc expression.  However, do handle
        elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
        (elimination_effects): Prohibit elimination of a register modified
        by an auto-inc expression.  Disable register elimination rules whose
        target register is modified by an auto-inc expression with variable
        increment.

2007-02-25  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (compute_estimated_nb_iterations): Fix
        off-by-one error.
        (array_at_struct_end_p): New function.
        (idx_infer_loop_bounds): Use it.
        (estimate_numbers_of_iterations_loop): Export.
        * predict.c (predict_loops): Use estimated_loop_iterations_int.
        Do not use PRED_LOOP_EXIT on exits predicted by # of iterations.
        (tree_estimate_probability): Call record_loop_exits.
        * tree-data-ref.c (get_number_of_iters_for_loop): Replaced by ...
        (estimated_loop_iterations, estimated_loop_iterations_int,
        estimated_loop_iterations_tree): New functions.
        (analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_1_2,
        analyze_subscript_affine_affine): Use estimated_loop_iterations_int.
        (analyze_miv_subscript): Use estimated_loop_iterations_tree.
        * predict.def (PRED_LOOP_ITERATIONS): Update comment.
        (PRED_LOOP_ITERATIONS_GUESSED): New.
        * cfgloop.c (record_loop_exits): Do nothing if there are no loops.
        * cfgloop.h (estimate_numbers_of_iterations_loop,
        estimated_loop_iterations_int): Declare.

2007-02-25  Mark Mitchell  <mark@codesourcery.com>

        * doc/extend.texi: Document optional priority argument to
        constructors and destructors.
        * tree.c (init_priority_for_decl): Adjust GTY markers.
        (init_ttree): Use priority-info hash functions for
        init_priority_for_decl.
        (tree_map_eq): Rename to ...
        (tree_map_base_eq): ... this.
        (tree_map_marked_p): Rename to ...
        (tree_map_base_marked_p): ... this.
        (tree_map_base_hash): New function.
        (decl_init_priority_lookup): Rework.
        (decl_fini_priority_lookup): New function.
        (decl_priority_info): New function.
        (decl_init_priority_insert): Use it.
        (decl_fini_priority_insert): Likewise.
        (decl_restrict_base_lookup): Adjust for refactoring of tree_map
        hierarchy.
        (decl_restrict_base_insert): Likewise.
        (decl_debug_expr_insert): Likewise.
        (decl_value_expr_lookup): Likewise.
        (decl_value_expr_insert): Likewise.
        * tree.h (priority_type): New type.
        (decl_init_priority_lookup): Use priority_type.
        (decl_fini_priority_lookup): New function.
        (decl_init_priority_insert): Use priority_type.
        (decl_fini_priority_insert): New function.
        (DECL_HAS_INIT_PRIORITY): Tweak comments.
        (DECL_INIT_PRIORITY): Likewise.
        (SET_DECL_INIT_PRIORITY): Add comment.
        (DECL_FINI_PRIORITY): New macro.
        (SET_DECL_FINI_PRIORITY): Likewise.
        (DEFAULT_INIT_PRIORITY): Document.
        (MAX_INIT_PRIORITY): Likewise.
        (MAX_RESERVED_INIT_PRIORITY): Likewise.
        (tree_map_base): New type.
        (tree_map_base_eq): New function.
        (tree_map_base_hash): Likewise.
        (tree_map_base_marked_p): Likewise.
        (tree_map): Inherit from tree_map_base.
        (tree_map_eq): Make it a macro.
        (tree_map_marked_p): Likewise.
        (tree_int_map): Inherit from tree_map_base.
        (tree_int_map_eq): Make it a macro.
        (tree_int_map_hash): Likewise.
        (tree_int_map_marked_p): Likewise.
        (tree_priority_map): New type.
        (tree_priority_map_eq): New macro.
        (tree_priority_map_hash): Likewise.
        (tree_priority_map_marked_p): Likewise.
        * varasm.c (emults_decl): Adjust for refactoring of tree_map
        hierarchy.
        (emutls_common_1): Likewise.
        * lambda-code.c (replace_uses_equiv_to_x_with_y): Likewise.
        * tree-ssa-structalias.c (heapvar_lookup): Adjust for refactoring
        of tree_map hierarchy.
        * tree-cfg.c (move_stmt_r): Likewise.
        (new_label_mapper): Likewise.
        * c-tree.h (c_expand_body): Move to ...
        * c-common.h (c_expand_body): ... here.
        * c-decl.c (c_expand_body): Move to ...
        * c-common.c (c_expand_body): ... here.
        (c_common_attribute_table): Allow 1 argument for the constructor
        and destructor attributes.
        (get_priority): New function.
        (handle_constructor_attribute): Set DECL_INIT_PRIORITY.
        (handle_destructor_attribute): Set DECL_FINI_PRIORITY.

2007-02-24  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30509
        * tree-inline.c (copy_bb): Produce exact copy of EH info when copying for inlining.

2007-02-24  Uros Bizjak  <ubizjak@gmail.com>
            Jan Hubicka  <jh@suse.cz>

        PR target/30778
        * i386.c (counter_mode): New function.
        (expand_set_or_movmem_via_loop): Use it.
        (expand_movmem_epilogue): Likewise; fix pasto.
        (ix86_expand_movmem): Do emit guard even for constant counts.
        (ix86_expand_setmem): Likewise.

2007-02-25  Nick Clifton  <nickc@redhat.com>

        * config/frv/frv.h (ASM_OUTPUT_CASE_LABEL): Delete.
        (JUMP_TABLES_IN_TEXT_SECTION): Define.

2007-02-24  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30770
        * config/i386/i386.md (expand_movmem_epilogue): Fix typo, mask
        count argument with 0x10, not with 0x16.
        (expand_setmem_epilogue): Ditto.

2007-02-24  Mike Stump  <mrs@apple.com>

        * config/i386/i386.c (output_pic_addr_const): Stubify optimized
        symbols.

2007-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30951
        * fold-const.c (fold_binary): Fold x +- CST op x for
        EQ_EXPR and NE_EXPR.

2007-02-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (muldi3): Force subregs to registers in 64-bit expander.

2007-02-24  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Honor
        -fkeep-inline-functions.

2007-02-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_modf): New.
        (fold_builtin_2): Use it.

2007-02-24  Bernd Schmidt  <bernd.schmidt@analog.com>

        * loop-iv.c (implies_p): Detect additional cases where A implies B.
        (determine_max_iter): Take additional LOOP arg; all callers changed.
        Lose broken logic dealing with PLUS.  Try to limit the upper bound by
        one using simplifications.
        (simplify_using_initial_values): Return if the expression becomes
        invalid due to altered regs.

2007-02-23  DJ Delorie  <dj@redhat.com>

        * doc/tm.h (BIGGEST_ALIGNMENT): Clarify the purpose of this macro.

2007-02-23  Mike Stump  <mrs@apple.com>

        * tlink.c (scan_linker_output): Parse linker messages from
        darwin9's linker better.

2007-02-23  Steve Ellcey  <sje@cup.hp.com>

        PR debug/29614
        * varpool.c (varpool_assemble_pending_decls):  Set
        varpool_last_needed_node to null.

2007-02-23  DJ Delorie  <dj@redhat.com>

        * config/i386/i386.c (ix86_data_alignment): Don't specify an
        alignment bigger than the object file can handle.

2007-02-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30825
        * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32,
        zero_extendsidi2_rex64): Penalize MMX register<->memory moves.
        (*movsf_1): Penalize MMX moves.

2007-02-23  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (doloop_end): Fail for loops that can iterate
        2^32-1 or more times unless flag_unsafe_loop_optimizations.

        * loop-iv.c (determine_max_iter): Moved in front of its sole user.

2007-02-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_logb, fold_builtin_significand): New.
        (fold_builtin_1): Use them.
        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
        BUILT_IN_SIGNIFICAND.

2007-02-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (bdesc_1arg): Initialize
        IX86_BUILTIN_MOVSHDUP and IX86_BUILTIN_MOVSLDUP with
        "__builtin_ia32_movshdup" and "__builtin_ia32_movsldup".
        (ix86_init_mmx_sse_builtins): Remove IX86_BUILTIN_MOVSHDUP
        and IX86_BUILTIN_MOVSLDUP.

2007-02-22  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/30841
        * fwprop.c (propagate_rtx_1): Accept a VOIDmode replacement address.

2007-02-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_frexp): New.
        (fold_builtin_2): Use it.

2007-02-22  Mark Mitchell  <mark@codesourcery.com>

        * doc/invoke.texi (Spec Files): Document getenv spec function.

        * gcc.c (getenv_spec_function): New function.
        (static_spec_functions): Add it.
        * config/vxworks.h (VXWORKS_TARGET_DIR): Remove.
        (VXWORKS_ADDITIONAL_CPP_SPEC): Use getenv to find the VxWorks
        header files.

2007-02-22  Michael Matz  <matz@suse.de

        PR c++/29433
        * dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
        (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.

2007-02-22  Ian Lance Taylor  <iant@google.com>

        PR debug/30898
        * dwarf2out.c (concatn_mem_loc_descriptor): New static function.
        (mem_loc_descriptor): Call it.

2007-02-22  Zdenek Dvorak  <dvorakz@suse.cz>
            Ira Rosen  <irar@il.ibm.com>

        * tree-data-ref.c (ptr_ptr_may_alias_p): Take alias sets into account.

2007-02-22  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/30843
        * tree-vect-transform.c (vect_transform_loop): Remove strided scalar
        stores only after all the group is vectorized.

2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30858
        * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
        in the reduction cycle have a single use in the loop.
        * tree-vectorizer.h (relevant): Add documentation.

2007-02-20  Mike Stump  <mrs@apple.com>

        * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
        * configure: Regenerate.

2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>

        Change the defaults of some parameters and options.
        * config/spu/spu-protos.h (spu_optimization_options): Declare.
        * config/spu/spu.c (spu_optimization_options): Add.
        (spu_override_options): Change params in spu_optimization_options.
        * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.

        Register 127 is only 16 byte aligned when used as a frame pointer.
        * config/spu/spu-protos.h (spu_init_expanders): Declare.
        * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
        HARD_FRAME_POINTER_REGNUM.
        (spu_legitimate_address):  Use regno_aligned_for_reload.
        (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
        aligned when frame_pointer_needed is true.
        (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
        to 8 bits.
        * config/spu/spu.h (INIT_EXPANDERS): Define.

        Make sure shift and rotate instructions have valid immediate operands.
        * config/spu/predicates.md (spu_shift_operand): Remove.
        * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
        * config/spu/constraints.md (W, O): Extend range.
        * config/spu/spu.md (umask, nmask): Define.
        (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
        lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
        rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
        rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
        spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
        (lshr<mode>3_reg):  Fix rtl description.

        Make sure mulhisi immediate operands are valid.
        * config/spu/predicates.md (imm_K_operand): Add.
        * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.

        Generate constants using fsmbi and andi.
        * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
        (print_operand, spu_split_immediate, classify_immediate,
        fsmbi_const_p): Handle IC_FSMBI2.

        Correctly handle a CONST_VECTOR containing symbols.
        * config/spu/spu.c (print_operand): Handle HIGH correctly.
        (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
        (immediate_load_p): Allow symbols that use 2 instructions to create.
        (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
        with symbols when flag_pic is set.
        (const_vector_immediate_p): New.
        (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
        accept a CONST_VECTOR with symbols.
        (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
        accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
        correctly.
        * config/spu/spu.md (high, low): Delete.
        (low_<mode>): Define.

        Remove INTRmode and INTR_REGNUM, which didn't work.
        * config/spu/spu.c (spu_conditional_register_usage): Remove reference
        of INTR_REGNUM.
        * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
        set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
        peephole2 pattern): Don't use INTR or 131.
        (movintrcc): Delete.
        * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
        CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
        * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
        (UNSPEC_SET_INTR): Add.
        * config/spu/spu-modes.def (INTR): Remove.

        More accurate warnings about run-time relocations.
        * config/spu/spu.c (reloc_diagnostic): Test in_section.

        Correctly warn about immediate arguments to specific intrinsics.
        * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
        (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
        the instruction predicate.

        Fix tree check errors with latest update.
        * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
        CALL_EXPR_ARG.
        (spu_expand_builtin): Use CALL_EXPR_FN.

        Add missing specific intrinsics.
        * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
        si_bislede.
        * config/spu/spu_internals.h: Ditto.

        Fix incorrect operand modifiers.
        * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
        * config/spu/spu.md (xor<mode>3):  Change %S to %J.

        Optimize one case of zero_extend of a vec_select.
        * config/spu/spu.md (_vec_extractv8hi_ze):  Add.

        Accept any immediate for hbr.
        * config/spu/spu.md (hbr):  Change s constraints to i.

2007-02-21  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
        condexec_count when skipping USE and CLOBBER.

2007-02-21  Nick Clifton  <nickc@redhat.com>

        * common.opt (Warray-bounds): Add Warning attribute.
        (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
        Likewise.
        (fsized-zeroes): Add Optimization attribute.
        (fsplit-wide-types, ftree-scev-cprop): Likewise.
        * c.opt (Wc++0x-compat): Add Warning attribute.

2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>

        PR middle-end/30761
        * reload1.c (eliminate_regs_in_insn): In the single_set special
        case, attempt to re-recognize the insn before falling back to
        having reload fix it up.

2007-02-20  Eric Christopher  <echristo@gmail.com>

        * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
        Rewrite accordingly.
        (frv_read_iacc_argument): Ditto.
        (frv_expand_set_builtin): Take a call instead of arglist, update for
        above changes.
        (frv_expand_unop_builtin): Ditto.
        (frv_expand_binop_builtin): Ditto.
        (frv_expand_cut_builtin): Ditto.
        (frv_expand_binopimm_builtin): Ditto.
        (frv_expand_voidbinop_builtin): Ditto.
        (frv_expand_int_void2arg): Ditto.
        (frv_expand_prefetches): Ditto.
        (frv_expand_voidtriop_builtin): Ditto.
        (frv_expand_voidaccop_builtin): Ditto.
        (frv_expand_load_builtin): Ditto.
        (frv_expand_store_builtin): Ditto.
        (frv_expand_mdpackh_builtin): Ditto.
        (frv_expand_mclracc_builtin): Ditto.
        (frv_expand_mrdacc_builtin): Ditto.
        (frv_expand_mwtacc_builtin): Ditto.
        (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
        calls for above.

2007-02-20  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
        * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
        cmpb instruction.
        (HAVE_GAS_DFP): Check for assembler support of decimal floating
        point instructions.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
        * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
        masks to power6 and power6x and to POWERPC_MASKS.
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        _ARCH_PWR6.
        * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
        * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
        * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
        Access PROTOTYPE as variable, not mask.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtl.h (remove_reg_equal_equiv_notes): New prototype.
        * rtlanal.c (remove_reg_equal_equiv_notes): New function.
        * combine.c (adjust_for_new_dest): Use it.
        * postreload.c (reload_combine): Likewise.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
        notes on an insn with multiple sets, even if single_set returns
        non-NULL for that insn.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
        scalbn and scalbln.

2007-02-20  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
        if user didn't pass it.
        * config/i386/darwin.h (CC1_SPEC): Likewise.
        * config/rs6000/darwin.h (CC1_SPEC): Likewise.
        (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
        -mmacosx-version-min.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
            Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_scalb.
        (scalb_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize scalb_optab.
        * genopinit.c (optabs): Implement scalb_optab using scalb?f3
        patterns.
        * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
        BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
        (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
        and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
        flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
        to implement scalbf, scalb and scalbl built-ins as inline x87
        intrinsics.

2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
            DJ Delorie <dj@redhat.com>

        PR other/30824
        * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
        (diagnostic_report_diagnostic): ... here, and turn them into real
        errors. If warnings are inhibited, no need to do anything.

2007-02-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (expm1xf2): Reorder insn sequence for
        better code generation.

2007-02-20  Ben Elliston  <bje@au.ibm.com>

        * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.

2007-02-20  Kazu Hirata  <kazu@codesourcery.com>

        * config/alpha/alpha.c, config/alpha/alpha.md,
        config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
        config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
        config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
        config/arm/lib1funcs.asm: Follow spelling conventions.

        * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
        config/fr30/fr30.md, config/i386/i386.h,
        config/iq2000/iq2000.h, config/iq2000/predicates.md,
        config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
        config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
        config/pdp11/pdp11.c, config/pdp11/pdp11.h,
        config/rs6000/altivec.md, config/rs6000/rs6000.c,
        config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
        config/sparc/sparc.c, config/sparc/sparc.h,
        config/sparc/sparc.md, config/spu/constraints.md,
        config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
        conventions.

2007-02-20  Alan Modra  <amodra@bigpond.net.au>

        PR target/29943
        * varasm.c (use_blocks_for_decl_p): Return false for decls with
        alias attribute.

2007-02-19  Kazu Hirata  <kazu@codesourcery.com>

        * doc/invoke.texi (-ftree-lrs): Remove.

2007-02-19  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
        NULL.

2007-02-19  Lee Millward  <lee.millward@codesourcery.com>

        * config/ia64/ia64.c (ia64_expand_builtin): Use the
        new CALL_EXPR_FN macro for retrieving the function
        declaration of the input expression.

2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c.opt (Waddress): New.
        * common.opt (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/invoke.texi (Warning Options): Delete -Walways-true and
        -Wstring-literal-comparison. Add -Waddress.
        (Waddress): New.
        (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
        consistently instead of -Walways-true in example.
        * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
        * c-typeck.c (parser_build_binary_op): Replace
        -Wstring-literal-comparison and -Walways-true with -Waddress.
        * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
        with -Waddress.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-cfg.c (dump_function_to_file): Be prepared for functions
        without DECL_STRUCT_FUNCTION initialized.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
        due to calls to functions taking pointers as parameters.

2007-02-19  Richard Henderson  <rth@redhat.com>

        PR debug/29558
        * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
        in memory.

2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_call_saved_register_used,
        s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
        accessed to the new scheme.

2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
        (cris_print_index, cris_print_operand, cris_print_operand_address)
        (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
        (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
        (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
        GET_CODE () == xxx.
        * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
        EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
        GO_IF_LEGITIMATE_ADDRESS): Ditto.
        * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
        (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
        (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
        (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
        (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
        (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
        (uminsi3, call, call_value): Ditto.
        (define_split: indir_to_reg_split, unnamed): Ditto.

2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30975
        * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
        wrong assert.

2007-02-18  Eric Christopher  <echristo@gmail.com>

        * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
        Remove use of arglist.
        (mips_expand_builtin): Remove use of arglist, pass in expr.
        (mips_expand_builtin_direct): Rewrite handling for arglist removal.
        (mips_expand_builtin_movtf): Ditto.
        (mips_expand_builtin_compare): Ditto.

2007-02-19  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (sra_build_assignment): Replace assertion
        checking with a comment explaining why it can't be done.

2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        PR middle-end/30833
        * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
        during CALL_EXPR representation conversion.
        * tree-ssa-propagate.c (set_rhs): Likewise.

2007-02-19  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (sra_build_assignment): Disable assertion checking
        for now.

2007-02-18  Roger Sayle  <roger@eyesopen.com>

        * function.c (gimplify_parameters): Call build_gimple_modify_stmt
        instead of calling build2 with a GIMPLE_MODIFY_STMT.
        * gimple-low.c (lower_function_body, lower_builtin_setjmp):
        Likewise.
        * gimplify.c (build_stack_save_restore, gimplify_return_expr,
        gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
        gimplify_init_ctor_eval_range, gimple_push_cleanup,
        gimplify_omp_for, gimplify_omp_atomic_pipeline,
        gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
        force_gimple_operand): Likewise.
        * ipa-cp.c (constant_val_insert): Likewise.
        * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
        lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
        perfect_nestify): Likewise.
        * langhooks.c (lhd_omp_assignment): Likewise.
        * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
        lower_copyprivate_clauses, lower_send_clauses,
        lower_send_shared_vars, expand_parallel_call,
        expand_omp_for_generic, expand_omp_for_static_nochunk,
        expand_omp_for_static_chunk, expand_omp_sections,
        lower_omp_single_copy, lower_omp_for_lastprivate,
        lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
        * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
        tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
        Likewise.

2007-02-19  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
        config/sh/sh.md: Follow spelling conventions.

        * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
        config/frv/predicates.md: Follow spelling conventions.

        * config/m68k/linux-unwind.h: Fix a comment typo.
        * target.h: Follow spelling conventions.

2007-02-18  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/28173
        * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
        (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
        Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
        Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
        <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).

2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_load_exponent): New.
        (fold_builtin_2): Use it.

2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/30773
        * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
        if we fail to attach a REG_EQUIV note.

2007-02-18  David Edelsohn  <edelsohn@gnu.org>
            Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.

2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        * calls.c (initialize_argument_information): Pass original EXP
        and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
        code to split complex arguments here, as part of initializing the
        ARGS array.
        (expand_call): Remove code that builds a list of arguments and
        inserts implicit arguments into it.  Instead, just count how many
        implicit arguments there will be so we can determine the size of
        the ARGS array, and let initialize_argument_information do the work.
        (split_complex_values): Delete unused function.

2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.

2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>

        * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
        for arg pointer based indexed addressing.

2007-02-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/ia64/ia64.h, config/ia64/ia64.md,
        config/ia64/predicates.md, config/ia64/sysv4.h: Follow
        spelling conventions.

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/m68k.c (split_di): New.
        * config/m68k/m68k-protos.h: Declare split_di.
        * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
          Improve predicate handling and split constant shifts.

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
        parameter for register bitfield operations, general predicates
        cleanup

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
        * config/m68k/linux-unwind.h: New file.

2007-02-18  Kazu Hirata  <kazu@codesourcery.com>

        * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
        config/i386/athlon.md, config/ia64/ia64.md,
        config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
        df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
        ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
        tree-ssa-loop-niter.c, tree-vect-analyze.c,
        tree-vect-transform.c: Fix comment typos.

2007-02-17  Kazu Hirata  <kazu@codesourcery.com>

        * sched-deps.c (find_insn_list): Remove.
        * sched-int.h: Remove the prototype for find_insn_list.

2007-02-16  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
        to linker.
        (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
        darwin_rs6000_override_options.
        (C_COMMON_OVERRIDE_OPTIONS): Expect
        darwin_macosx_version_min to be non-NULL always.
        (TARGET_C99_FUNCTIONS): Likewise.
        (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
        (DARWIN_MINVERSION_SPEC): New.
        * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
        * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
        to cc1*.
        (DARWIN_MINVERSION_SPEC): New.
        * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
        value.
        * config/darwin-c.c (darwin_cpp_builtins): Expect
        darwin_macosx_version_min to be non-NULL always.

        * config/rs6000/rs6000.c: Clean up trailing whitespace.

2007-02-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (x86_use_xchgb): New.
        (TARGET_USE_XCHGB): New macro.
        * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
        * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
        Split after reload into bswaphi for shifts of 8.
        (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
        (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
        or when optimizing for size.

2007-02-16  Richard Guenther  <rguenther@suse.de>
            Christian Bruel  <christian.bruel@st.com>

        * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
        DECLs but prefer SSA_NAMEs over DECLs.

2007-02-16  Richard Guenther  <rguenther@suse.de>

        * tree-flow-inline.h (single_imm_use_p): Remove.
        (zero_imm_uses_p): Likewise.
        * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
        instead of single_imm_use_p.
        * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
        zero_imm_uses_p.

2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR other/27843
        * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
        nested double- and backquotes.

2007-02-15  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/30391
        * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
        should be unreachable.
        (build2_stat): Allow construction of MODIFY_EXPR at any time.
        For the time being redirect GIMPLE_MODIFY_STMT to the new
        (renamed) build_gimple_modify_stmt_stat.
        (build2_gimple_stat): Rename to...
        (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
        Always build a GIMPLE_MODIFY_STMT node.
        * tree.h (build2_gimple, build2_gimple_stat): Delete.
        (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
        declarations.

        * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
        gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
        * tree-complex.c (set_component_ssa_name, expand_complex_move,
        expand_complex_div_wide): Likewise.
        * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
        * tree-ssa-loop-im.c (schedule_sm): Likewise.
        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
        * tree-ssa-loop-manip.c (create_iv): Likewise.
        * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
        abs_replacement): Likewise.
        * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
        realify_fake_stores): Likewise.

        * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
        node rather than a GIMPLE_MODIFY_STMT node.
        (std_gimpify_va_arg_expr, expand_builtin_va_copy,
        fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
        Likewise.
        (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
        * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
        GIMPLE_MODIFY_STMT.

2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30433
        * fold-const.c (fold_comparison): Add back the
        folding of constant complex comparisions.

2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30729
        * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
        effects unknown to this function, return early.

2007-02-15  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (move_eh_region_note): New static function.
        (resolve_simple_move): Call it.
        (decompose_multiword_subregs): Track blocks for which we resolve a
        simple move which is also a control flow insn.  Pass them to
        find_many_sub_basic_blocks.
        (pass_lower_subreg): Add TODO_verify_flow.
        (pass_lower_subreg2): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * tree.h (enum tree_code_class): Add tcc_vl_exp.
        (VL_EXP_CLASS_P): New.
        (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (TREE_OPERAND_CHECK_CODE): Likewise.
        (GIMPLE_STMT_OPERAND_CHECK): Likewise.
        (TREE_RTL_OPERAND_CHECK): Likewise.
        (tree_operand_check_failed): Make second parameter the whole tree
        instead of its code.  Fixed callers.
        (VL_EXP_CHECK): New.
        (TREE_OPERAND_LENGTH): New.
        (VL_EXP_OPERAND_LENGTH): New.
        (CALL_EXPR_FN): New.
        (CALL_EXPR_STATIC_CHAIN): New.
        (CALL_EXPR_ARGS): New.
        (CALL_EXPR_ARG): New.
        (call_expr_nargs): New.
        (CALL_EXPR_ARGP): New.
        (build_nt_call_list): Declare.
        (build_vl_exp_stat): Declare.
        (build_vl_exp): New.
        (build_call_list): Declare.
        (build_call_nary): Declare.
        (build_call_valist): Declare.
        (build_call_array): Declare.
        (call_expr_arg): Declare.
        (call_expr_argp): Declare.
        (call_expr_arglist): Declare.
        (fold_build_call_list): Declare.
        (fold_build_call_list_initializer): Declare.
        (fold_call_expr): Declare to replace fold_builtin.
        (fold_builtin_fputs): Update to agree with modified definition.
        (fold_builtin_strcpy): Likewise.
        (fold_builtin_strncpy): Likewise.
        (fold_builtin_memory_chk): Likewise.
        (fold_builtin_stxcpy_chk): Likewise.
        (fold_builtin_strncpy_chk): Likewise.
        (fold_builtin_next_arg): Likewise.
        (fold_build_call_expr): Declare.
        (fold_builtin_call_list): Declare.
        (fold_builtin_call_valist): Declare.
        (build_call_expr): Declare.
        (validate_arglist): Update to agree with modified definition.
        (tree_operand_length): New.
        (call_expr_arg_iterator): New.
        (init_call_expr_arg_iterator): New.
        (next_call_expr_arg): New.
        (first_call_expr_arg): New.
        (more_call_expr_args_p): New.
        (FOR_EACH_CALL_EXPR_ARG): New.

        * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
        and tcc_gimple_stmt.
        (tree_code_size): Update documentation.  Use sizeof (tree) rather
        than sizeof (char *).
        (tree_size): Likewise.  Add case for tcc_vl_exp.
        (tree_node_structure): Add case for tcc_vl_exp.
        (contains_placeholder_p): Likewise.
        (substitute_in_expr): Likewise.
        (substitute_placeholder_in_expr): Likewise.
        (stabilize_reference_1): Likewise.
        (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
        to diagnose breakage of this interface for constructing CALL_EXPRs.
        (build_nt): Add similar assertion here.
        (build_nt_call_list): New.
        (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
        (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (get_callee_fndecl): Use new CALL_EXPR accessors.
        (tree_operand_check_failed): Change parameters to pass entire node
        instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
        (process_call_operands): New.
        (build_vl_exp_stat): New.
        (build_call_list): New.
        (build_call_nary): New.
        (build_call_valist): New.
        (build_call_array): New.
        (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (call_expr_arglist): New.

        * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
        tcc_vl_exp instead of a fixed-size tcc_expression.

        * doc/c-tree.texi (CALL_EXPR): Document new representation and
        accessors for CALL_EXPRs.
        (AGGR_INIT_EXPR): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * builtins.c (c_strlen): Return NULL_TREE instead of 0.
        (expand_builtin_nonlocal_goto): Change parameter to be entire
        CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
        (expand_builtin_prefetch): Likewise.
        (expand_builtin_classify_type): Likewise.
        (mathfn_built_in): Return NULL_TREE instead of 0.
        (expand_errno_check): Use new CALL_EXPR accessors.
        (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
        Return NULL_RTX instead of 0.
        (expand_builtin_mathfn_2): Likewise.
        (expand_builtin_mathfn_3): Likewise.
        (expand_builtin_interclass_mathfn): Likewise.
        (expand_builtin_sincos): Likewise.
        (expand_builtin_cexpi): Likewise.
        (expand_builtin_int_roundingfn): Likewise.
        (expand_builtin_int_roundingfn_2): Likewise.
        (expand_builtin_pow): Likewise.
        (expand_builtin_powi): Likewise.
        (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
        of arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_RTX instead of 0.
        (expand_builtin_strstr): Likewise.
        (expand_builtin_strchr): Likewise.
        (expand_builtin_strrchr): Likewise.
        (expand_builtin_strpbrk): Likewise.
        (expand_builtin_memcpy): Likewise.
        (expand_builtin_mempcpy): Likewise.
        (expand_builtin_mempcpy_args): New.
        (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
        (expand_builtin_memmove_args): New.
        (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
        (expand_movstr): Likewise.
        (expand_builtin_strcpy): Likewise.
        (expand_builtin_strcpy_args): New.
        (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
        (expand_builtin_strncpy): Likewise.
        (expand_builtin_memset): Likewise.
        (expand_builtin_memset_args): New.
        (expand_builtin_bzero): Similarly to expand_builtin_memset.
        (expand_builtin_memcmp): Likewise.
        (expand_builtin_strcmp): Likewise.
        (expand_builtin_strncmp): Likewise.
        (expand_builtin_strcat): Likewise.
        (expand_builtin_strncat): Likewise.
        (expand_builtin_strspn): Likewise.
        (expand_builtin_strcspn): Likewise.
        (expand_builtin_args_info): Likewise.
        (expand_builtin_va_start): Likewise.
        (gimplify_va_arg_expr): Likewise.
        (expand_builtin_va_end): Likewise.
        (expand_builtin_va_copy): Likewise.
        (expand_builtin_frame_address): Likewise.
        (expand_builtin_alloca): Likewise.
        (expand_builtin_bswap): Likewise.
        (expand_builtin_unop): Likewise.
        (expand_builtin_fputs): Likewise.
        (expand_builtin_expect): Likewise.
        (expand_builtin_fabs): Likewise.
        (expand_builtin_copysign): Likewise.
        (expand_builtin_printf): Likewise.
        (expand_builtin_fprintf): Likewise.
        (expand_builtin_sprintf): Likewise.
        (expand_builtin_init_trampoline): Likewise.
        (expand_builtin_signbit): Likewise.
        (expand_builtin_fork_or_exec): Likewise.
        (expand_builtin_sync_operation): Likewise.
        (expand_builtin_compare_and_swap): Likewise.
        (expand_builtin_lock_test_and_set): Likewise.
        (expand_builtin_lock_release): Likewise.
        (expand_builtin): Likewise.
        (builtin_mathfn_code): Likewise.

        (fold_builtin_constant_p): Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_expect): Likewise.
        (fold_builtin_classify_type): Likewise.
        (fold_builtin_strlen): Likewise.
        (fold_builtin_nan): Likewise.
        (integer_valued_real_p): Likewise.
        (fold_trunc_transparent_mathfn): Likewise.
        (fold_fixed_mathfn): Likewise.
        (fold_builtin_cabs): Likewise.
        (fold_builtin_sqrt): Likewise.
        (fold_builtin_cbrt): Likewise.
        (fold_builtin_cos): Likewise.
        (fold_builtin_cosh): Likewise.
        (fold_builtin_tan): Likewise.
        (fold_builtin_sincos): Likewise.
        (fold_builtin_cexp): Likewise.
        (fold_builtin_trunc): Likewise.
        (fold_builtin_floor): Likewise.
        (fold_builtin_ceil): Likewise.
        (fold_builtin_round): Likewise.
        (fold_builtin_int_roundingfn): Likewise.
        (fold_builtin_bitop): Likewise.
        (fold_builtin_bswap): Likewise.
        (fold_builtin_logarithm): Likewise.
        (fold_builtin_hypot): Likewise.
        (fold_builtin_pow): Likewise.
        (fold_builtin_powi): Likewise.
        (fold_builtin_exponent): Likewise.
        (fold_builtin_memset): Likewise.
        (fold_builtin_bzero): Likewise.
        (fold_builtin_memory_op): Likewise.
        (fold_builtin_bcopy): Deleted; call site changed to invoke
        fold_builtin_memory_op directly.
        (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
        (fold_builtin_strncpy): Likewise.
        (fold_builtin_memcmp): Likewise.
        (fold_builtin_strcmp): Likewise.
        (fold_builtin_strncmp): Likewise.
        (fold_builtin_signbit): Likewise.
        (fold_builtin_copysign): Likewise.
        (fold_builtin_isascii): Likewise.
        (fold_builtin_toascii): Likewise.
        (fold_builtin_isdigit): Likewise.
        (fold_builtin_fabs): Likewise.
        (fold_builtin_abs): Likewise.
        (fold_builtin_fmin_fmax): Likewise.
        (fold_builtin_carg): Likewise.
        (fold_builtin_classify): Likewise.
        (fold_builtin_unordered_cmp): Likewise.

        (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
        New functions split out from fold_builtin_1.
        (fold_builtin_n): New.
        (fold_builtin_varargs): New.
        (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
        instead.
        (fold_call_expr): New.
        (build_function_call_expr): Rewrite to use new helper function.
        (fold_builtin_call_list): New.
        (build_call_expr): New.
        (fold_builtin_call_valist): New.
        (rewrite_call_expr): New.
        (validate_arg): New.
        (validate_arglist): Change parameter to be entire CALL_EXPR instead
        of an arglist.  Change return type to bool.  Use new CALL_EXPR
        accessors.

        (fold_builtin_strstr):  Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_strchr): Likewise.
        (fold_builtin_strrchr): Likewise.
        (fold_builtin_strpbrk): Likewise.
        (fold_builtin_strcat): Likewise.
        (fold_builtin_strncat): Likewise.
        (fold_builtin_strspn): Likewise.
        (fold_builtin_strcspn): Likewise.
        (fold_builtin_fputs): Likewise.
        (fold_builtin_next_arg): Likewise.
        (fold_builtin_sprintf): Likewise.

        (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
        NULL_RTX instead of 0.
        (expand_builtin_memory_chk): Likewise.
        (maybe_emit_chk_warning): Likewise.
        (maybe_emit_sprintf_chk_warning): Likewise.

        (fold_builtin_object_size): Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_memory_chk): Likewise.
        (fold_builtin_stxcpy_chk): Likewise.
        (fold_builtin_strncpy_chk): Likewise.
        (fold_builtin_strcat_chk): Likewise.
        (fold_builtin_strcat_chk): Likewise.
        (fold_builtin_strncat_chk): Likewise.
        (fold_builtin_sprintf_chk): Likewise.
        (fold_builtin_snprintf_chk): Likewise.
        (fold_builtin_printf): Likewise.
        (fold_builtin_vprintf): Likewise.

        * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
        constructors.
        (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
        (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (extract_muldiv_1): Add VL_EXP_CLASS_P case.
        (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
        (fold_unary): Likewise.
        (fold_binary): Likewise.
        (fold_ternary): Remove CALL_EXPR case, since they are no longer
        ternary expressions.
        (fold): Add logic for tcc_vl_exp.
        (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (fold_build3_stat): Add assertion to flag broken interface for
        constructing CALL_EXPRs.
        (fold_build_call_list): New.
        (fold_build_call_list_initializer): New.
        (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
        constructors.
        (fold_strip_sign_ops): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
        accessors and dump arguments explicitly.

        * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
        explicitly.
        (print_call_name): Use new CALL_EXPR accessors.

        * print-tree.c (print_node): Add case tcc_vl_exp.  Print
        CALL_EXPR arguments explicitly instead of as a list.  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
        (vrp_visit_stmt): Likewise.

        * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
        know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (force_move_till_expr): Likewise.

        * targhooks.c (default_external_stack_protect_fail): Use
        build_call_expr instead of build_function_call_expr.
        (default_hidden_stack_protect_fail): Likewise.

        * tree-complex.c (expand_complex_libcall): Use build_call_expr to
        build the call.

        * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
        and walk arguments explicitly.

        * tree-ssa-loop-niter.c (simplify_replace_tree): Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (expand_simple_operations): Likewise.
        (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.

        * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.
        (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.

        * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.

        * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
        (tree_ic_transform): Likewise.
        (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
        parameter instead of arglist.  Fix callers.
        (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
        (tree_stringops_transform): Likewise.
        (tree_indirect_call_to_profile): Likewise.
        (tree_stringops_values_to_profile): Likewise.

        * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
        (eliminate_tail_call): Likewise.

        * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.

        * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
        Use TREE_OPERAND_LENGTH and generalize to handle any number of
        operands.
        (instantiate_parameters_1): Can't handle tcc_vl_exp here.

        * omp-low.c (build_omp_barrier): Use build_call_expr.
        (lower_rec_input_clauses): Likewise.
        (lower_reduction_clauses): Likewise.
        (expand_parallel_call): Likewise.
        (maybe_catch_exception): Likewise.
        (expand_omp_for_generic): Likewise.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_sections): Likewise.
        (lower_omp_single_simple): Likewise.
        (lower_omp_single_copy): Likewise.
        (lower_omp_master): Likewise.
        (lower_omp_ordered): Likewise.
        (lower_omp_critical): Likewise.

        * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
        (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.

        * tree-gimple.c (is_gimple_call_addr): Fix doc.
        (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.  Add tcc_vl_exp case.

        * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
        and generalize to handle any number of operands.
        (chrec_contains_undetermined): Likewise.
        (tree_contains_chrecs): Likewise.
        (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.

        * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.

        * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
        fold_call_expr instead of fold_builtin.
        (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
        match declarations there.
        (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
        updates.

        * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
        (scan_function): Add case tcc_vl_exp for CALL_EXPR.

        * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
        accessors.

        * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
        (execute_cse_sincos): Use new CALL_EXPR accessors.

        * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.

        * gimple-low.c (lower_function_body): Use build_call_expr.
        (lower_builtin_setjmp): Likewise.

        * expr.c (emit_block_move_via_libcall): Use build_call_expr.
        (set_storage_via_libcall): Likewise.
        (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.
        (expand_expr_real_1): Use new CALL_EXPR accessors.

        * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
        generalize to handle any number of operands.
        (TB_parent_eq): Likewise.

        * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
        (strip_builtin_expect): Likewise.

        * function.c (gimplify_parameters): Use build_call_expr.

        * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.

        * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
        (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.

        * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
        iterators.

        * gimplify.c (build_stack_save_restore): Use build_call_expr.
        (gimplify_decl_expr): Likewise.
        (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
        Use new CALL_EXPR iterators.
        (gimplify_modify_expr_to_memcpy): Use build_call_expr.
        (gimplify_modify_expr_to_memset): Likewise.
        (gimplify_variable_sized_compare): Likewise.
        (gimplify_omp_atomic_fetch_op): Likewise.
        (gimplify_omp_atomic_pipeline): Likewise.
        (gimplify_omp_atomic_mutex): Likewise.
        (gimplify_function_tree): Likewise.

        * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
        (call_expr_flags): Likewise.
        (expand_call): Likewise.

        * except.c (expand_builtin_eh_return_data_regno): Pass entire
        CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
        accessors.

        * coverage.c (create_coverage): Use build_call_expr.

        * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
        (temp_call_expr_obstack): New.
        (pool_copy_list): Delete.
        (temp_copy_call_expr): New.
        (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
        CALL_EXPR accessors.  Get rid of special goo for copying argument
        lists and use temp_copy_call_expr instead.
        (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
        CALL_EXPR accessors.
        (create_expression_by_pieces): Likewise.  Use build_call_array
        to construct the result instead of fold_build3.
        (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
        dealing with argument lists.
        (init_pre): Remove references to expression_node_pool and
        list_node_pool.  Init temp_call_expr_obstack instead.
        (fini_pre): Remove references to expression_node_pool and
        list_node_pool.

        * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
        and walk arguments explicitly instead of as a list.

        * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
        (mx_register_decls): Likewise.
        (mudflap_register_call): Likewise.
        (mudflap_finish_file): Likewise.

        * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
        (ipa_callsite_compute_param): Likewise.

        * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
        accessors and constructor.

        * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
        accessors and constructor.
        (convert_tramp_reference): Likewise.
        (convert_call_expr): Likewise.
        (finalize_nesting_tree_1): Likewise.

        * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
        accessors.

        * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.

        * tree-inline.c (initialize_inlined_parameters): Pass entire
        CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
        accessors.
        (estimate_num_insns_1): Use new CALL_EXPR accessors.
        (expand_call_inline): Tidy up call to initialize_inlined_parameters.

        * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (vectorizable_reduction): Likewise.
        (vectorizable_call): Use new CALL_EXPR iterators.
        (vectorizable_conversion): Use build_call_expr.
        (vectorizable_operation): Use TREE_OPERAND_LENGTH.
        (vect_gen_widened_results_half): Use build_call_expr.
        (vect_setup_realignment): Likewise.
        (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.

        * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
        (pass_through_call): Likewise.
        (compute_object_sizes): Likewise.  Use fold_call_expr instead of
        fold_builtin.

        * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
        (tree_gen_pow2_profiler): Likewise.
        (tree_gen_one_value_profiler): Likewise.
        (tree_gen_ic_func_profiler): Likewise.
        (tree_gen_average_profiler): Likewise.
        (tree_gen_ior_profiler): Likewise.

        * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
        (find_func_aliases): Use new CALL_EXPR accessors.  Add case
        tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.

        * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.

        * convert.c (convert_to_real): Use new CALL_EXPR accessors and
        constructor.
        (convert_to_integer): Likewise.

        * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
        accessors.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
        accessors.
        * config/frv/frv.c (frv_expand_builtin): Likewise.
        * config/s390/s390.c (s390_expand_builtin): Likewise.

        * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
        (sparc_expand_builtin): Use new CALL_EXPR accessors.

        * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
        (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
        instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
        (ix86_expand_store_builtin): Likewise.
        (ix86_expand_unop_builtin): Likewise.
        (ix86_expand_unop1_builtin): Likewise.
        (ix86_expand_sse_compare): Likewise.
        (ix86_expand_sse_comi): Likewise.
        (ix86_expand_vec_init_builtin): Likewise.
        (ix86_expand_vec_ext_builtin): Likewise.
        (ix86_expand_vec_set_builtin): Likewise.
        (ix86_expand_builtin): Use new CALL_EXPR accessors.

        * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
        * config/c4x/c4x.c (c4x_expand_builtin): Likewise.

        * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (iq2000_expand_builtin): Use new CALL_EXPR accessors.

        * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
        build_call_expr.
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
        (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (altivec_expand_abs_builtin): Likewise.
        (rs6000_expand_binop_builtin): Likewise.
        (altivec_expand_predicate_builtin): Likewise.
        (altivec_expand_lv_builtin): Likewise.
        (spe_expand_stv_builtin): Likewise.
        (altivec_expand_stv_builtin): Likewise.
        (rs6000_expand_ternop_builtin): Likewise.
        (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
        (altivec_expand_st_builtin): Likewise.
        (altivec_expand_dst_builtin): Likewise.
        (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (altivec_expand_vec_set_builtin): Likewise.
        (altivec_expand_vec_ext_builtin): Likewise.
        (altivec_expand_builtin): Use new CALL_EXPR accessors.
        (spe_expand_builtin): Likewise.
        (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (spe_expand_evsel_builtin): Likewise.
        (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
        FCFSX cases must construct whole new CALL_EXPR, not just arglist.

        * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (arm_expand_unop_builtin): Likewise.
        (arm_expand_builtin): Use new CALL_EXPR accessors.

        * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
        accessors.

        * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (bfin_expand_unop_builtin): Likewise.
        (bfin_expand_builtin): Use new CALL_EXPR accessors.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * c-semantics.c (build_stmt): Add internal diagnostic check.

        * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
        accessors.  Print arguments explicitly instead of as a list.

        * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.

        * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
        (c_finish_omp_flish): Likewise.

        * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
        arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.
        (check_function_arguments_recurse): Use new CALL_EXPR accessors.
        (c_warn_unused_result): Likewise.

2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/26494
        * doc/invoke.texi (Warning Options): Remove
        -Werror-implicit-function-declaration.
        (Wimplicit-function-declaration): Update description.
        * opts.c (common_handle_option): Move handling of -Werror=* to...
        (enable_warning_as_error): ...here.
        * opts.h (enable_warning_as_error): Declare.
        * c-decl.c (implicit_decl_warning): Unless
        -Wno-implicit-function-declaration is given, emit a pedwarn if
        -std=c99 or emit a warning if -Wimplicit-function-declaration.
        * c.opt (Wimplicit-function-declaration): Replace
        mesg_implicit_function_declaration with
        warn_implicit_function_declaration.
        * c-opts.c (c_common_handle_option):
        -Werror-implicit-function-declaration is exactly equal as
        -Werror=implicit-function-declaration.
        (set_Wimplicit): Replace mesg_implicit_function_declaration with
        warn_implicit_function_declaration.
        (c_common_post_options): -Wimplict-function-declaration is enabled
        by default by -std=c99, otherwise is disabled by default.
        * c-objc-common.c (c_objc_common_init): Remove flawed logic.

2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_modify_expr): During gimplification, attach a
        DECL on the rhs to a DECL on the lhs for debug info purposes if the
        former is ignored but not the latter.

2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
        is made and the reference doesn't use the alias set of its type,
        do not create the temporary using that type.

2007-02-15  Aldy Hernandez  <aldyh@redhat.com>

        * jump.c: Remove prototypes for delete_computation and
        delete_prior_computation.

2007-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * jump.c (get_label_after): Delete.
        (get_label_before, delete_computation, delete_jump,
        delete_prior_computation, follow_jumps): Move...
        * reorg.c (delete_computation, delete_prior_computation): ... here...
        (get_label_before, delete_jump): ... making these static ...
        (follow_jumps): ... and simplifying this since it only runs after
        reload.
        * rtl.h (get_label_after, get_label_before, delete_jump,
        follow_jumps): Delete prototypes.

2007-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.

2007-02-15  Nick Clifton  <nickc@redhat.com>

        * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
        order to prevent it from being munged by the target.

2007-02-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Remove misleading comment.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
        reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
        invalid patterns.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (instantiate_missing_elements): Canonicalize
        bit-field types.
        (sra_build_assignment): New.
        (generate_copy_inout, generate_element_copy,
        generate_element_zero, generate_one_element_init): Use it.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (instantiate_missing_elements): Canonicalize
        bit-field types.
        (sra_build_assignment): New.
        (generate_copy_inout, generate_element_copy,
        generate_element_zero, generate_one_element_init): Use it.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
        limbo die nodes.

2007-02-14  Joseph Myers  <joseph@codesourcery.com>

        * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
        types as aggregates not scalars.
        * function.c (assign_stack_temp_for_type): Likewise.

2007-02-14  Roger Sayle  <roger@eyesopen.com>
            Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-dump.c (dump_switch_p_1): Require exact match of the option
        name.

2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>

        * passes.c (next_pass_1): Clear the next field of the copied
        pass structure.

2007-02-14  Richard Henderson  <rth@redhat.com>

        * tree-sra.c (early_sra): New.
        (decl_can_be_decomposed_p): Deny va_list if early_sra.
        (tree_sra_early, pass_sra_early): New.
        * tree-pass.h (pass_sra_early): Declare.
        * passes.c (init_optimization_passes): Use it.

2007-02-14  Richard Guenther  <rguenther@suse.de>

        * flags.h (issue_strict_overflow_warning): Convert to a macro.

2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>

         PR tree-optimization/30771
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
        also phi nodes.
        (vect_analyze_operations): Induction phis can now be marked as
        used_in_loop.
        (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
        Update documentation accordingly.

2007-02-14  Nick Clifton  <nickc@redhat.com>

        * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
        most 3 arguments are supported.
        (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.

2007-02-13  Seongbae Park <seongbae.park@gmail.com>

        * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
        Ensure dst->current is valid.

2007-02-13  Paul Brook  <paul@codesourcery.com>

        * config.gcc: Add arm*-*-uclinux-*eabi.
        * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
        (SUBTARGET_EXTRA_LINK_SPEC): Define.
        (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
        (LINK_GCC_C_SEQUENCE_SPEC): Undef.
        (LINK_SPEC): Define.
        (LIB_SPEC): Define.
        * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
        register.
        * config/arm/uclinux-eabi.h: New file.
        * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
        * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
        based targets.

2007-02-13  Ian Lance Taylor  <iant@google.com>

        * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
        * flags.h (warn_strict_overflow): Declare.
        (enum warn_strict_overflow_code): Define.
        (issue_strict_overflow_warning): New static inline function.
        * opts.c (warn_strict_overflow): New variable.
        (common_handle_option): Handle OPT_Wstrict_overflow and
        OPT_Wstrict_overflow_.
        * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
        OPT_Wall.
        * fold-const.c: Include intl.h.
        (fold_deferring_overflow_warnings): New static variable.
        (fold_deferred_overflow_warning): New static variable.
        (fold_deferred_overflow_code): New static variable.
        (fold_defer_overflow_warnings): New function.
        (fold_undefer_overflow_warnings): New function.
        (fold_undefer_and_ignore_overflow_warnings): New function.
        (fold_deferring_overflow_warnings_p): New function.
        (fold_overflow_warning): New static function.
        (make_range): Add strict_overflow_p parameter.  Change all
        callers.
        (extract_muldiv, extract_muldiv_1): Likewise.
        (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
        tree_expr_nonnegative_p.
        (fold_negate_expr): Call fold_overflow_warning.
        (fold_range_test): Likewise.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
        instead of tree_expr_nonnegative_p.
        (tree_expr_nonnegative_warnv_p): Rename from
        tree_expr_nonnegative_p, add strict_overflow_p parameter.
        (tree_expr_nonnegative_p): New function.
        (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
        strict_overflow_p parameter.
        (tree_expr_nonzero_p): New function.
        * passes.c (verify_interpass_invariants): New static function.
        (execute_one_pass): Call it.
        * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
        warnings.
        (number_of_iterations_exit, loop_niter_by_eval): Likewise.
        (estimate_numbers_of_iterations): Likewise.
        (scev_probably_wraps_p): Likewise.
        * tree-ssa-ccp.c: Include "toplev.h".
        (evaluate_stmt): Defer fold overflow warnings until we know we are
        going to optimize.
        (struct fold_stmt_r_data): Add stmt field.
        (fold_stmt_r): Defer fold overflow warnings until we know we
        optimized.
        (fold_stmt): Initialize stmt field of fold_stmt_r_data.
        (fold_stmt_inplace): Likewise.
        * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
        (cleanup_control_expr_graph): Defer fold overflow warnings until
        we know we are going to optimize.
        * tree-cfg.c (fold_cond_expr_cond): Likewise.
        * tree-ssa-threadedge.c (simplify_control_stmt_condition):
        Likewise.
        * tree-vrp.c (vrp_expr_computes_nonnegative): Call
        tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
        * tree-ssa-loop-manip.c (create_iv): Likewise.
        * c-typeck.c (build_conditional_expr): Likewise.
        (build_binary_op): Likewise.
        * tree-vrp.c (vrp_expr_computes_nonzero): Call
        tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
        (extract_range_from_unary_expr): Likewise.
        * simplify-rtx.c (simplify_const_relational_operation): Warn when
        assuming that signed overflow does not occur.
        * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
        * tree.h (tree_expr_nonnegative_warnv_p): Declare.
        (fold_defer_overflow_warnings): Declare.
        (fold_undefer_overflow_warnings): Declare.
        (fold_undefer_and_ignore_overflow_warnings): Declare.
        (fold_deferring_overflow_warnings_p): Declare.
        (tree_expr_nonzero_warnv_p): Declare.
        * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
        of warning options.
        (Warning Options): Document -Wstrict-overflow.
        * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
        (tree-ssa-ccp.o): Likewise.
        (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
        (fold-const.o): Depend on intl.h.

2007-02-13  Ian Lance Taylor  <iant@google.com>

        PR middle-end/30751
        * lower-subreg.c (resolve_simple_move): Decompose subregs in
        addresses.

2007-02-13  Stuart Hastings  <stuart@apple.com>

        * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.

2007-02-13  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
        handled_component_p before looking for the indirect_ref.

2007-02-13  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
        remove flags clobber.
        (bswapsi2): New expander, emit code for !TARGET_BSWAP.
        (bswaphi_lowpart): New.
        (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
        remove TARGET_BSWAP test.  Delete expander of the same name.

        * optabs.c (widen_bswap, expand_doubleword_bswap): New.
        (expand_unop): Use them.

2007-02-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
        *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
        *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
        *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
        *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
        *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
        *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
        assembler dialect choice from asm templates.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
        (fixuns_trunc<SSEMODEF>si2): Use it.
        * config/i386/sse.md (vec_setv4sf_0): Export.
        * config/i386/i386.c (ix86_build_const_vector): Export.
        (ix86_split_convert_uns_si_sse): Rename from
        ix86_expand_convert_uns_si_sse and rewrite as a splitter.
        * config/i386/i386-protos.h: Update.

2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/29521
        * c-typeck.c (c_finish_return): Improve warning message.

2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * alias.c (find_symbolic_term): Delete unused function.

2007-02-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (paritydi2, paritysi2): New expanders.
        (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
        (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.

2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
        * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
        the function, temporarily point the debug interface to the null one.

2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (round_up_to_align): New static function.
        (field_byte_offset): Use it to round the offset.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
        (inswl_const): Export.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
        result mode of the libcall, convert back to outmode.

2007-02-12  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
        (bswapdi2): New define_expand to implement 32-bit implementation.

2007-02-12  Nick Clifton  <nickc@redhat.com>

        * doc/invoke.texi (Overall Options): Document --help=.
        * gcc.c (target_help_flag): Rename to print_subprocess_flag.
        (cc1_options): Pass --help= on to cc1.
        (display_help): Add description of --help=.
        (process_command): Add code to handle --help=.  Allow translated
        --help and --target-help switches to be passed on to compiler
        sub-process.
        (main): Remove unused if statement.
        * opts.c (columns): Remove.
        (LEFT_COLUMN): Define.
        (wrap_help): Add columns argument.
        (print_filtered_help): Change parameters to be an include bitmask,
        an exclude bitmask, an any bitmask and the column width.  Move the
        code to display the params list here.  Add code to display the
        status of options rather than their descriptions if the quiet flag
        is not active.
        (print_specific_help): Change parameters to be an include bitmask,
        an exclude bitmask and an any bitmask.  Move code to look up the
        column width here.  Decide upon the title for an options listing.
        (common_handle_options): Add code to handle --help=.  Adapt code
        for --help and --target-help to use the revised form of the
        print_specific_help function.
        (print_help): Delete.
        (print_param_help): Delete.
        (print_switch): Delete.
        * opts.h (cl_lang_count): Add prototype.
        (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
        CL_MAX_OPTION_CLASS): New defines.
        * optc-gen.awk: Add construction of cl_lang_count.
        * c.opt: Add Warning attribute to warning options and Optimization
        attribute to optimization options.
        * common.opt: Likewise.
        Add --help=.
        Add -fhelp and -ftarget-help as aliases for the transformed --help
        and --target-help options.
        * opt-functions.awk: Add code to handle Warning and Optimization
        attributes.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/constraints.md: New file.
        * config/alpha/alpha.c: Include tm-constrs.h.
        (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
        alpha_extra_constraint): Remove.
        (alpha_emit_conditional_branch): Use satisfies_constraint_*.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
        (EXTRA_CONSTRAINT): Remove.
        * config/alpha/alpha.md: Include constraints.md.
        (adddi splitter): Use satisfies_constraint_*.
        * config/alpha/predicates.md (add_operand): Likewise.
        (sext_add_operand, addition_operation): Likewise.

2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/29145
        * tree-data-ref.c (base_addr_differ_p): Make us more conservative
        in our handling of restrict qualified pointers.

2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * doc/invoke.texi (Wunused-value): Update description.
        (Wextra): Delete item.
        * opts.c (set_Wextra): Don't use the value of Wextra to set the
        value of Wunused-value.
        * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
        (c_finish_stmt_expr): Don't check extra_warnings.
        (emit_side_effect_warnings): The caller is responsible to check
        warn_unused_value.

2007-02-11  Roger Sayle  <roger@eyesopen.com>
            Matt Thomas  <matt@3am-software.com>

        * simplify-rtx.c (simplify_relational_operation_1): Correct typo.

2007-02-11  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1): Optimize
        comparisons of POPCOUNT against zero.
        (simplify_const_relational_operation): Likewise.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Wextra): Delete outdated paragraph.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * dwarf2out.c (root_type): Delete unused function.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * genattrtab.c (contained_in_p): Delete unused function.
        (write_expr_attr_cache): Likewise.

2007-02-11  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
        previous patch.

2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>

        * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
        to add the REG_EQ* note.
        * see.c (see_merge_one_use_extension): Likewise.
        * local-alloc.c (update_equiv_regs): Likewise.  Also don't
        turn REG_EQUAL notes into REG_EQUIV notes if the target
        register may have more than one set.
        * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
        * gcse.c (try_replace_reg): Likewise.
        * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
        * calls.c (fixup_tail_calls): Likewise.  Abort if there is
        more than one REG_EQUIV note.
        * reload1.c (gen_reload): Use set_unique_reg_note.

2007-02-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
        (ix86_builtin_conversion): New function.

2007-02-06  Mark Mitchell  <mark@codesourcery.com>

        PR target/29487
        * tree.h (DECL_REPLACEABLE_P): New macro.
        * except.c (set_nothrow_function_flags): Likewise.

2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
            Ira Rosen  <irar@il.ibm.com>
            Dorit Nuzman  <dorit@il.ibm.com>

        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
        * targhooks.c (default_builtin_vectorized_conversion): New.
        * targhooks.h (default_builtin_vectorized_function): New declaration.
        * target.h (struct vectorize): Add builtin_conversion field.
        * tree-vectorizer.h (type_conversion_vec_info_type): New enum
        stmt_vec_info_type value.
        (vectorizable_conversion): New declaration.
        * tree-vect-analyze.c (vect_analyze_operations): Add
        vectorizable_conversion call.
        * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
        * tree-vect-transform.c (vectorizable_conversion): New function.
        (vect_transform_stmt): Add case for type_conversion_vec_info_type.
        * tree-vect-generic.c (expand_vector_operations_1): Consider correct
        mode.
        * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
        (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
        (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
        or ALTIVEC_BUILTIN_VCFSX.

2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/30634
        * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
        CONST_DOUBLE and operand 0 is a hard register.
        (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
        memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
        is a hard floating-point register.

2007-02-10  Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
        * builtin-types.def (BT_WORD): Make unsigned.
        (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
        * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
        (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
        * c-decl.c (grokdeclarator): Don't error if !have_tls.
        * c-parser.c (c_parser_omp_threadprivate): Likewise.
        * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
        emulated tls.
        * expr.c (emutls_var_address): New.
        (expand_expr_real_1): Expand emulated tls.
        (expand_expr_addr_expr_1): Likewise.
        * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
        * output.h (emutls_finish): Declare.
        * toplev.c (compile_file): Call it.
        * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
        address before wrapping in CONST.
        * varasm.c (emutls_htab, emutls_object_type): New.
        (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
        (get_emutls_object_name, get_emutls_object_type): New.
        (get_emutls_init_templ_addr, emutls_decl): New.
        (emutls_common_1, emutls_finish): New.
        (assemble_variable): When emulating tls, swap decls; generate
        constructor for the emutls objects.
        (do_assemble_alias): When emulating tls, swap decl and target name.
        (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
        for emulated tls.
        * varpool.c (decide_is_variable_needed): Look at force_output.
        Recurse for emulated tls.
        (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
        with decide_is_variable_needed.
        * emutls.c: New file.
        * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
        tls_object for real tls.

2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/29599
        * reload1.c (eliminate_regs_in_insn): Take the destination
        mode into account when computing the offset.

2007-02-09  Stuart Hastings  <stuart@apple.com>
            Richard Henderson  <rth@redhat.com>

        * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
        * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
        * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
        fixuns_truncdfhi2): New.
        (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
        (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
        (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
        (floatunssidf2): Allow nonimmediate source.
        * gcc/config/i386/sse.md (movdi_to_sse): New.
        (vec_concatv2di): Drop '*'.
        * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
        ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
        ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
        New.
        * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
        ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
        ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
        ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
        (ix86_build_signbit_mask): Fix decl of v, refactor to call
        ix86_build_const_vector.
        (x86_emit_floatuns): Rewrite.

2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * genautomata.c (longest_path_length): Delete unused function.
        (struct state): Delete unused longest_path_length.
        (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
        (get_free_state): Delete unused.

2007-02-09  Jan Hubicka  <jh@suse.cz>

        * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
        * doc/invoke.texi (inline-unit-growth): Update default value.

        * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
        * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
        (rebuild_cgraph_edges): Likewise.
        * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
        (dump_cgraph_node): Dump frequencies.
        (cgraph_clone_edge): Add frequency scales.
        (cgraph_clone_node): Add freuqnecy.
        * cgraph.h (cgraph_edge): Add freuqnecy argument.
        (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
        (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
        * tree-pass.h (TODO_rebuild_frequencies): New constant.
        * cgraphunit.c (verify_cgraph_node): Verify frequencies.
        (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
        (save_inline_function_body): Likewise.
        * ipa-inline.c: inluce rtl.h
        (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
        (cgraph_edge_badness): Use frequencies.
        (cgraph_decide_recursive_inlining): Update clonning.
        (cgraph_decide_inlining_of_small_function): Dump frequency.
        * predict.c (estimate_bb_frequencies): Export.
        * predict.h (estimate_bb_frequencies): Declare.
        * tree-inline.c (copy_bb): Watch overflows.
        (expand_call_inline): Update call of cgraph_create_edge.
        (optimize_inline_calls): Use TODO flags to update frequnecies.
        * passes.h: Include predict.h
        (init_optimization_passes): Move profile ahead.
        (execute_function_todo): Handle TODO_rebuild_frequencies.

2007-02-09  Roger Sayle  <roger@eyesopen.com>

        * config/alpha/alpha.c (emit_insxl): Force the first operand of
        the insbl or inswl pattern into a register.

2007-02-09  Roger Sayle  <roger@eyesopen.com>

        * config/ia64/ia64.md (bswapdi2): New define_insn.

2007-02-09  Richard Henderson  <rth@redhat.com>

        * config/i386/constraints.md (Ym): New constraint.
        * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
        (movdi_1_rex64): Split sse and xmm general register moves from
        memory move alternatives.  Use conditional register constraints.
        (movsf_1, movdf_integer): Likewise.
        (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
        (movdf_integer_rex64): New.
        (pushsf_rex64): Fix output constraints.
        * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
        (sse2_stored): Likewise.
        (sse2_storeq_rex64): New.
        * config/i386/i386.c (x86_inter_unit_moves): Enable for not
        amd and not generic.
        (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
        for optimize_size.  Remove SF/DFmode hack.

2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>

        * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
        (bit_SSE4a): New.

2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
        (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
        (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
        m68k/t-mlib to tmake_file.
        (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
        (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
        (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
        Allow it to be cf or m68k.  Set m68k_arch_family.  If that
        variable is not empty, add t-$m68k_arch_family to tmake_file.
        Add t-mlibs to tmake_file.
        * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
        * config/m68k/t-cf: New file.
        * config/m68k/t-m68k: Likewise.
        * config/m68k/t-mlibs: Likewise.
        * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
        * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
        Delete.
        * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
        (INSTALL_LIBGCC): Delete.
        (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
        * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_CPU): Define.
        * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.

2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
            Richard Guenther  <rguenther@suse.de>

        PR middle-end/23361
        * fold-const.c (fold_comparison): Handle obfuscated comparisons
        against INT_MIN/INT_MAX.
        * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
        file if a loop is removed.

2007-02-09  Joseph Myers  <joseph@codesourcery.com>

        * calls.c (store_one_arg): Pass correct alignment to
        emit_push_insn for non-BLKmode values.
        * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
        unaligned stack slot via a suitably aligned slot.

2007-02-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
        warnings.
        (legal_subregs): Use unsigned char, make const.
        (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.

2007-02-08  Paul Brook  <paul@codesourcery.com>

        * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
        special interworking needed.

2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
        conditional to __SSE2__.
        (Entries below should have been added to first ChangeLog
        entry for amdfam10 dated 2007-02-05)
        * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
        defined.
        * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
        defined.
        * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
        defined.

2007-02-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
        * config/m32c/m32c.c (legal_subregs): New.
        (m32c_illegal_subreg_p): New.
        * config/m32c/predicates.md (m32c_any_operand): Use it to reject
        unsupported subregs of hard regs.

2007-02-08  Jan Hubicka  <jh@suse.cz>

        * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
        the same one; always update histograms.

2007-02-08  Diego Novillo  <dnovillo@redhat.com>

        * passes.c (init_optimization_passes): Tidy comment.

2007-02-08  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
        strip zero_extend, bswap and rotates from POCOUNT's argument.
        <PARITY>: Likewise, we can strip not, bswap, sign_extend,
        zero_extend and rotates from PARITY's argument.
        <BSWAP>: A byte-swap followed by a byte-swap is an identity.
        (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
        of an integer constant at compile-time.

2007-02-08  Diego Novillo  <dnovillo@redhat.com>

        PR 30562
        * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
        Update all users.
        * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
        users.
        (init_alias_info):
        * tree-ssa-live.c (remove_unused_locals): Do not remove
        TREE_ADDRESSABLE variables.
        * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
        * tree-ssa-operands.c (add_virtual_operand): Remove argument
        FOR_CLOBBER.  Update all users.
        If VAR has an associated alias set, add a virtual operand for
        it if no alias is found to conflict with the memory reference.

2007-02-07  Jan Hubicka  <jh@suse.cz>
            Robert Kidd <rkidd@crhc.uiuc.edu>

        * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.

2007-02-07  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.

2007-02-07  Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
        parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
        tablejumpdi, movsi_to_cr_one): Remove constraints from
        define_expand's match_operands.

2007-02-07  Roger Sayle  <roger@eyesopen.com>

        * global.c (compute_regsets): Move declatation of "i" inside of
        #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.

2007-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR c++/30703
        * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
        of INDIRECT_REF <RESULT_DECL>.

        * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.

2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/29746
        * config/sh/sh.c (expand_cbranchdi4): Use scratch register
        properly.
        (sh_initialize_trampoline): Add parentheses to avoid a warning.

2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/loop.texi: Document possibility not to perform disambiguation
        of loops with multiple latches.
        * cfgloopmanip.c (alp_enum_p): Removed.
        (add_loop): Handle subloops.  Use get_loop_body_with_size.
        (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
        * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
        the new forwarder block.
        (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
        Handle the case latch is NULL.
        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
        when marking loop exits.
        * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
        be modified.
        * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
        disambiguate_loops_with_multiple_latches.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
        before fix_loop_structure.
        * cfgloop.c: Include pointer-set.h and output.h.
        (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
        update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
        (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
        find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
        mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
        disambiguate_multiple_latches, get_loop_body_with_size,
        disambiguate_loops_with_multiple_latches): New functions.
        (flow_loop_dump): Dump multiple latch edges.
        (flow_loop_nodes_find): Handle loops with multiple latches.
        (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
        (glb_enum_p): Modified.
        (get_loop_body): Use get_loop_body_with_size.
        * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
        (AVOID_CFG_MODIFICATIONS): New constant.
        (disambiguate_loops_with_multiple_latches, add_loop,
        get_loop_body_with_size): Declare.
        * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.

2007-02-06  Seongbae Park <seongbae.park@gmail.com>

        PR inline-asm/28686
        * global.c (compute_regsets): New function.
        (global_alloc): Refactored ELIMINABLE_REGSET
        and NO_GLOBAL_ALLOC_REGS computation out.
        (rest_of_handle_global_alloc): Call compute_regsets()
        for non-optimizing case.

2007-02-06  Richard Henderson  <rth@redhat.com>

        * config/i386/constraints.md (Y2): Rename from Y.
        (Yi): New constraint.
        * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
        pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
        zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
        (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
        truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
        fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
        floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
        absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
        fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
        * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
        mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
        vec_extractv2si_1): Change Y constraints to Y2.
        * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
        vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
        Change Y constraints to Y2.
        (sse2_loadld): Change Y constraints to x.

2007-02-06  Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
        (parity<mode>2): New define_expand using rs6000_emit_parity.
        * config/rs6000/rs6000.c (rs6000_emit_popcount,
        rs6000_emit_parity): New functions.
        * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
        rs6000_emit_parity): Prototype here.

2007-02-06  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move_operand): Reject CONST.
        (resolve_clobber): Call validate_change rather than directly
        assigning to XEXP (pat, 0).

2006-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
        (tree-ssa-reassoc.o): Add pointer-set.h dependency.
        (tree-cfg.o): Remove hashtab.h dependency.

        * tree-ssa-loop-ivopts.c: Include pointer-set.h.
        (struct ivopts_data): Change niters to pointer_map_t.
        (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
        (niter_for_exit): Create pointer_map on demand.  Change for
        pointer_map API.
        (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
        (free_loop_data): Destroy data->niters if created and reset field.
        (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
        (tree_ssa_iv_optimize_loop): Check for presence of stale data.

        * tree-ssa-reassoc.c: Include pointer-set.h.
        (bb_rank): Change to long *.
        (operand_rank): Change to pointer_map_t.
        (find_operand_rank): Return long, -1 if not found.  Declare as inline.
        (insert_operand_rank): Accept long.
        (operand_entry_hash, operand_entry_eq): Remove.
        (get_rank): Return long.  Adjust for changes above.
        (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
        and operand_rank.
        (fini_reassoc): Delete operand_rank with pointer_map_destroy.

        * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
        (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
        (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
        is not NULL.
        (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
        directly since it cannot be NULL.
        (get_vi_for_tree): Rewrite for pointer_map API.
        (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
        (init_alias_vars): Create vi_for_tree as pointer_map.
        (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.

        * tree-cfg.c: Don't include hashtab.h.
        (edge_to_cases): Declare as pointer_map.
        (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
        Delete.
        (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
        (start_recording_case_labels): Create edge_to_cases as pointer_map.
        (end_recoding_case_labels): Cleanup edge_to_cases manually before
        destroying it.
        (record_switch_edge): Delete.
        (get_cases_for_edge): Adjust for pointer_map API, inline
        record_switch_edge (rewritten for new API), remove goto.

2006-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
        * tree-nested.c: Include pointer-set.h.
        (var_map_elt, var_map_eq, var_map_hash): Delete.
        (struct nesting_info): Remove GTY marker.  Change the two htab_t's
        to pointer_map_t's.
        (nesting_info_bitmap_obstack): New.
        (lookup_field_for_decl): Adjust for pointer_map API.
        (lookup_tramp_for_decl): Adjust for pointer_map API.
        (get_nonlocal_debug_decl): Adjust for pointer_map API.
        (get_local_debug_decl): Adjust for pointer_map API.
        (convert_nl_goto_reference): Adjust for pointer_map API.
        (convert_nl_goto_receiver): Adjust for pointer_map API.
        (create_nesting_tree): Create outside GGC space.  Create bitmap on
        the new obstack.  Create field_map and var_map as pointer_maps.
        (free_nesting_tree): Adjust for changes to create_nesting_tree.
        (root): Delete.
        (lower_nested_functions): Move root here, no need to NULL it.
        Initialize and release the obstack.

2007-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
        Remove prototypes and make them non-static.
        (struct tree_int_map): Remove.
        * tree.h (struct tree_int_map): Move here, turning TO into an
        unsigned int.
        (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.

        * tree.h (TREE_COMPLEXITY): Remove.
        (struct tree_exp): Remove complexity field.
        * tree.c (build1_stat): Don't set it.

2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
            Victor Kaplansky  <victork@il.ibm.com>

        * tree-vectorizer.c (vect_is_simple_use): Support induction.
        (vect_is_simple_reduction): Support reduction with induction as
        one of the operands.
        (vect_is_simple_iv_evolution): Fix formatting.
        * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
        formatting.  Don't mark induction phis for vectorization.
        (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
        * tree-vect-transform.c (get_initial_def_for_induction): New function.
        (vect_get_vec_def_for_operand): Support induction.
        (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
        induction case.
        (vectorizable_reduction): Support reduction with induction as one of
        the operands.
        (vectorizable_type_demotion): Use def-type of stmt argument rather
        than dummy def-type.

        * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
        flag_tree_scev_cprop.
        * common.opt (tree-scev-cprop): New flag.

        * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
        call to vect_get_new_vect_var.

2007-02-06  Ira Rosen  <irar@il.ibm.com>

        * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
        vectype is not NULL.
        (vect_pattern_recog_1): Likewise.

2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
        (fold_negate_expr): Likewise.

2007-02-05  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/30189
        * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
        even if cv-qualification is the same.

2007-02-05  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
        __enable_execute_stack on completion.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
        athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
        athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
        athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
        athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
        athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
        athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
        athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
        cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
        swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
        fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
        x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
        floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
        floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
        mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
        umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
        umuldi3_highpart_rex64, umulsi3_highpart_insn,
        umulsi3_highpart_zext, smuldi3_highpart_rex64,
        smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
        x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
        sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
        sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
        sqrtextenddfxf2_i387): Added amdfam10_decode.

        * config/i386/athlon.md (athlon_idirect_amdfam10,
        athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
        athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
        athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
        athlon_ivector_store_amdfam10): New define_insn_reservation.
        (athlon_idirect_loadmov, athlon_idirect_movstore): Added
        amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_call_amdfam10,
        athlon_pop_amdfam10, athlon_lea_amdfam10): New
        define_insn_reservation.
        (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
        athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
        athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_sseld_amdfam10,
        athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
        athlon_mmxssest_short_amdfam10): New define_insn_reservation.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_sseins_amdfam10): New
        define_insn_reservation.
        * config/i386/i386.md (sseins): Added sseins to define_attr type
        and define_attr unit.
        * config/i386/sse.md: Set type attribute to sseins for insertq
        and insertqi.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
        ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
        ssecomi_load_amdfam10, ssecomi_amdfam10,
        sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
        define_insn_reservation.
        (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (cvtss2sd_load_amdfam10,
        cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
        cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
        cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
        cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
        cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
        define_insn_reservation.

        * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
        cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
        cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
        cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
        cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
        athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
        athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
        (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
        athlon_ssemul_load_k8): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
        (x86_sse_unaligned_move_optimal): New variable.

        * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
        m_AMDFAM10.
        (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
        for unaligned vector SSE double/single precision loads for AMDFAM10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.h (TARGET_AMDFAM10): New macro.
        (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
        Define TARGET_CPU_DEFAULT_amdfam10.
        (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
        (processor_type): Add PROCESSOR_AMDFAM10.

        * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
        processor_type in config/i386/i386.h.
        Enable imul peepholes for TARGET_AMDFAM10.

        * config.gcc: Add support for --with-cpu option for amdfam10.

        * config/i386/i386.c (amdfam10_cost): New variable.
        (m_AMDFAM10): New macro.
        (m_ATHLON_K8_AMDFAM10): New macro.
        (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
        x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
        x86_promote_QImode, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
        x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
        x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
        x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
        Enable/disable for amdfam10.
        (override_options): Add amdfam10_cost to processor_target_table.
        Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
        processor_alias_table.
        (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
        (ix86_adjust_cost): Add code for amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
        instruction set feature flag. Add new (-mpopcnt) flag for popcnt
        instruction. Add new SSE4A (-msse4a) instruction set feature flag.
        * config/i386/i386.h: Add builtin definition for SSE4A.
        * config/i386/i386.md: Add support for ABM instructions
        (popcnt and lzcnt).
        * config/i386/sse.md: Add support for SSE4A instructions
        (movntss, movntsd, extrq, insertq).
        * config/i386/i386.c: Add support for ABM and SSE4A builtins.
        Add -march=amdfam10 flag.
        * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
        * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
        and amdfam10.
        * doc/extend.texi: Add documentation for SSE4A builtins.

2007-02-05  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.

2007-02-05  Richard Guenther  <rguenther@suse.de>

        * tree-vectorizer.h (vectorizable_function): Add argument type
        argument, change return type.
        * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
        * tree-vect-transform.c (vectorizable_function): Handle extra
        argument, return vectorized function decl.
        (build_vectorized_function_call): Remove.
        (vectorizable_call): Handle calls with result and argument types
        differing.  Handle loop vectorization factor correctly.
        * targhooks.c (default_builtin_vectorized_function): Adjust for
        extra argument.
        * targhooks.h (default_builtin_vectorized_function): Likewise.
        * target.h (builtin_vectorized_function): Add argument type
        argument.
        * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
        extra argument, allow vectorizing of lrintf.
        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
        documentation of target hook.

2007-02-05  Hans-Peter Nilsson  <hp@axis.com>

        PR target/30665
        * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
        ("*andhi_clear", andu (casesi+45)): For size-changed operand where
        memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
        BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
        <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
        * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
        before canonicalizing sincos to cexpi.
        (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
        Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
        (alpha_init_builtins): Use alpha_add_builtins to process tables.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * mips-tfile.c (initialize_init_file): Correct endianness test.

2007-02-05  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
        the 'y' constraint.

2007-02-05  Richard Sandiford  <richard@codesourcery.com>

        * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
        saves in a PARALLEL before the register assignments.

2007-02-05  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
        DWARF_FRAME_RETURN_COLUMN to be a general register.
        * dwarf2out.c (init_return_column_size): New function, split from...
        (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
        DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
        to be nongeneral registers.
        * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
        integer registers.
        (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
        (DWARF_ALT_FRAME_RETURN_COLUMN): Define.

2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.

2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloopmanip.c (loop_delete_branch_edge): Removed.
        (remove_path): Use can_remove_branch_p and remove_branch instead
        of loop_delete_branch_edge.
        * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
        (tree_transform_and_unroll_loop): Remove dead branches immediately.
        Update profile using scale_dominated_blocks_in_loop.
        * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
        * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
        (can_remove_branch_p, remove_branch): Declare.
        * tree-cfg.c (tree_can_remove_branch_p): New function.
        (tree_cfg_hooks): Add tree_can_remove_branch_p.
        * cfgrtl.c (rtl_can_remove_branch_p): New function.
        (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.

2007-02-05  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30696
        * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
        nodes in cgraph, don't remove offline copy of the function.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
        vectors might cause maybe_lookup_element_for_expr to be called
        on non-sra-candidate.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/bfin/bfin-modes.def, config/bfin/bfin.c,
        config/bfin/bfin.md, config/bfin/predicates.md: Follow
        spelling conventions.

2007-02-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30636
        * fold-const.c (try_move_mult_to_index): Make sure to not
        overflow one dimension of a multi-dimensional array access.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * passes.c (init_optimization_passes): Reindent.

2007-02-04  Jan Hubicka  <jh@suse.cz>
            Eric Botcazou  <ebotcazou@adacore.com>

        * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
        (execute_fixup_cfg): Break out the abnormal goto code.
        * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
        (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
        (optimize_inline_calls): Call make_nonlocal_label_edges.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
        true when something was changed.
        (rename_ssa_copies): When something was changed, do
        TODO_remove_unused_locals.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
        add TODO_remove_unused_locals when instruction was removed.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (try_inline): Improve debug output; work on already
        inline edges too.
        (cgraph_decide_inlining_incrementally): Indent; improve debug output;
        call try_inline for already inlined edges too when flattening;
        inline also functions that make callee growth but overall unit size
        reduce.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/m32c/bitops.md, config/m32c/jump.md,
        config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
        config/m32r/m32r.h, config/m32r/m32r.md,
        config/m32r/predicates.md, config/m68hc11/larith.asm,
        config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
        config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
        config/mips/mips-protos.h, config/mips/mips.c,
        config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
        config/mn10300/mn10300.h, config/mn10300/predicates.md,
        config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
        spelling conventions.

        * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
        Follow spelling conventions.

2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>

        * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
        warn about C++0x compatibility.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/h8300/h8300.c, config/h8300/h8300.h,
        config/h8300/h8300.md: Follow spelling conventions.

2007-02-03  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/30667
        * combine.c (try_combine): Do not substitute source operand
        with constants wider than 2 * HOST_BITS_PER_WIDE_INT.

2007-02-03  Jan Hubicka  <jh@suse.cz>

        PR gcov-profile/30650
        * value-prof.c (stringop_block_profile): Fix handling of size counter;
        do not divide by zero for never executed counters.
        (tree_find_values_to_profile): Fix counters.
        * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.

2007-02-03  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move_operand): New static function,
        broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
        operands.
        (simple_move): Call simple_move_operand.
        (find_decomposable_subregs): Add special handling of MEMs.
        (can_decompose_p): Rename from cannot_decompose_p.  Reverse
        meaning of return value.  If we see a hard register, test whether
        it can store a word_mode value.  Change all callers.

2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
        ftrapv insns and expanders.
        (subdi3): Change define_expand operand 1 to arith11_operand, and
        operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
        pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
        handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
        respectively.

        PR middle-end/30174
        * varasm.c (notice_global_symbol): Treat global objects as weak when
        flag_shlib is true.

2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * emit-rtl.c (dconstpi): Delete.
        (dconstsqrt2): New.
        (init_emit_once): Delete dconstpi and init dconstsqrt2.
        * real.h (dconstpi): Delete.
        (dconstsqrt2): New.
        * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
        (fold_builtin_hypot): Likewise.

2007-02-03  Tom Tromey  <tromey@redhat.com>

        PR driver/30246
        * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
        -gcoff3, -gxcoff3, -gvms3 implies -dD.

2007-02-03  Kazu Hirata  <kazu@codesourcery.com>

        * c-decl.c, config/avr/avr.c, config/avr/avr.h,
        config/m68k/m68k.c, config/m68k/netbsd-elf.h,
        config/mn10300/mn10300.c, config/pdp11/pdp11.h,
        config/rs6000/cell.md, config/rs6000/darwin.h,
        config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
        config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
        jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
        tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
        typos.  Follow spelling conventions.
        * doc/invoke.texi: Follow spelling conventions.

2007-02-03  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1): Implement some
        canonicalization transformations that attempt to simplify integer
        constant comparisons to become comparisons against zero.

2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
        fabs(x)*sqrt(2).
        * fold-const.c (fold_binary): Fix comment typos.  Fold complex
        (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).

2007-02-02  Mike Stump  <mrs@apple.com>

        * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
        * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
        (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
        generate a branch island.

2007-02-02  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
        (xtensa_legitimate_address_p): New.
        (xtensa_legitimize_address): New.
        (xtensa_output_addr_const_extra): New.
        * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
        (BASE_REG_P): New.
        (REG_OK_FOR_BASE_P): Use BASE_REG_P.
        (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
        (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
        (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
        * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
        (xtensa_legitimize_address): New.
        (xtensa_output_addr_const_extra): New.

2007-02-02  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.

2007-02-02  Ian Lance Taylor  <iant@google.com>

        * expmed.c (expand_divmod): Add comment.

2007-02-02  Kazu Hirata  <kazu@codesourcery.com>

        * emit-rtl.c (renumber_insns): Remove.
        * flags.h: Remove the extern for flag_renumber_insns.
        * rtl.h: Remove the prototype for renumber_insns.
        * toplev.c (flag_renumber_insns): Remove.

2007-02-02  Hui-May Chang  <hm.chang@apple.com>

        Revert for x86 darwin:
        2005-06-19  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
        code before the following patch under TARGET_MACHO.
        (ix86_function_value_regno_p): Likewise.

2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (negate_expr_p, fold_negate_expr): Handle
        COMPLEX_EXPR.

2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR target/29682
        * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
        general or fp registers.  Add comments.
        * config/ia64/ia64.md (reg_pred_prefix): Add comment.

2007-02-02  Paolo Bonzini  <bonzini@gnu.org>

        * pointer-set.c (insert_aux): Only return insertion slot.
        (pointer_set_insert): Adjust.
        (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
        pointer_map_destroy, pointer_map_insert, pointer_map_contains,
        pointer_map_traverse): New.
        * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
        pointer_map_create,  pointer_map_destroy, pointer_map_insert,
        pointer_map_contains, pointer_map_traverse): Declare.

2007-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/30473
        * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
        sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).

2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.

        (struct _dep): New type.
        (dep_t): New typedef.
        (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
        (DEP_STATUS): New access macro.  The macro with the same name was
        renamed to DEP_LINK_STATUS.
        (dep_init): Declare function

        (struct _dep_link): New type.
        (dep_link_t): New typedef.
        (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
        (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
        (DEP_LINK_STATUS): New macro.
        (debug_dep_links): New debug function.

        (struct _deps_list): New type.
        (deps_list_t): New typedef.
        (DEPS_LIST_FIRST): New access macro.
        (FOR_EACH_DEP_LINK): New cycle macro.
        (create_deps_list, free_deps_list, delete_deps_list): Declare
        functions.
        (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
        (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
        (copy_deps_list_change_con): Ditto.

        (move_dep_link): Declare function.

        (struct _dep_node): New type.
        (dep_node_t): New typedef.
        (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.

        (struct haifa_insn_data.back_deps): New field to hold backward
        dependencies of the insn.
        (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
        to deps_list_t.
        (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
        Change its type to deps_list_t.
        (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
        (INSN_DEPEND): Rename to INSN_FORW_DEPS.
        (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.

        (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.

        (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.

        (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
        all callers.
        (dep_cost): Declare.

        * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
        (ds_to_dk, dk_to_ds): New functions.

        (init_dep_1): New static function.
        (init_dep): New function.
        (copy_dep): New static function.

        (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
        functions.
        (detach_dep_link): New static function.
        (move_dep_link): New function.

        (dep_links_consistent_p, dump_dep_links): New static functions.
        (debug_dep_links): New debugging function.

        (deps_obstack, dl_obstack, dn_obstack): New static variables.

        (alloc_deps_list, init_deps_list): New static functions.
        (create_deps_list): New function.
        (clear_deps_list): New static function.
        (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
        (deps_list_consistent_p, dump_deps_list): New static functions.
        (debug_deps_list): New function.
        (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
        functions.
        (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.

        (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
        use new scheduler dependencies lists.
        (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
        (sched_analyze): Ditto.  Initialize dependencies lists.
        (add_forw_dep, compute_forward_dependences): Update to use new
        scheduler dependencies lists.

        (init_dependency_caches): Init deps_obstack.
        (free_dependency_caches): Free deps_obstack.

        (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
        new scheduler dependencies lists.
        (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
        (add_back_forw_dep, delete_back_forw_dep): Ditto.

        * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
        Update to use new scheduler dependencies lists.
        (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
        (debug_dependencies): Ditto.
        (schedule_region): Update comments.

        * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
        scheduler dependencies lists.
        (schedule_ebb): Update comments.

        * rtl.def (DEPS_LIST): Remove.

        * lists.c (unused_deps_list): Remove.
        (free_list): Update assertions.

        (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
        (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.

        * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
        (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.

        * haifa-sched.c (comments): Update.
        (insn_cost1): Remove.  Inline the code into insn_cost ().
        (insn_cost): Update to use new scheduler dependencies lists.  Move
        processing of the dependency cost to dep_cost ().
        (dep_cost): New function.  Use it instead of insn_cost () when
        evaluating cost of the dependency.  Use compatible interface to
        interact with the target.
        (priority): Update to use new scheduler dependencies lists.
        (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
        with greater number of insns that depend on the insn.
        (schedule_insn): Update to use new scheduler dependencies lists.  Add
        code to free backward dependencies lists.  Inline and optimize code
        from resolve_dep () - see PR28071.
        (ok_for_early_queue_removal): Update to use new scheduler dependencies
        lists.  Update call to targetm.sched.is_costly_dependence hook.

        (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
        scheduler dependencies lists.

        (resolve_dep): Remove.  Move the logic to schedule_insn ().
        (init_h_i_d): Initialize dependencies lists.

        (process_insn_depend_be_in_spec): Rename to
        process_insn_forw_deps_be_in_spec.  Update to use new scheduler
        dependencies lists.
        (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
        Update to use new scheduler dependencies lists.
        (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.

        * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
        new scheduler dependencies lists.
        (build_intra_loop_deps): Ditto.

        * target.h (struct _dep): Declare to use in
        gcc_target.sched.is_costly_dependence.
        (struct gcc_target.sched.adjust_cost): Fix typo.
        (struct gcc_target.sched.is_costly_dependence): Change signature to use
        single dep_t parameter instead of an equivalent triad.
        (struct gcc_target.sched.adjust_cost_2): Remove.

        * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.

        * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.

        * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
        documentation.
        (TARGET_SCHED_ADJUST_COST_2): Remove documentation.

        * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
        (REG_DEP_TRUE): Document.

        * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
        Change signature to correspond to the targetm.sched.adjust_cost hook.
        Update use in TARGET_SCHED_ADJUST_COST_2.
        (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
        (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
        new scheduler dependencies lists.
        (ia64_gen_check): Ditto.

        * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
        dependencies lists.

        * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
        signature to correspond to the targetm.sched.is_costly_dependence hook.
        (is_costly_group): Update to use new scheduler dependencies lists.

        * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
        instead of INSN_COST () macro.

2007-02-01  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.

2007-02-01  Guy Martin  <gmsoft@gentoo.org>

        * pa.md (tp_load): Correct mfctl instruction syntax.

2007-02-01  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/rs6000.c (rs6000_stack_info): Correct
        altivec_padding_size calculation on AIX.  Improve comment, add
        assert to verify that it's right.

        * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
        64-bit.

2007-2-01  Seongbae Park  <seongbae.park@gmail.com>

        PR inline-asm/28686
        * global.c (global_alloc): Add mising initialization of
        ELIMINABLE_REGSET.

2007-02-01  Roger Sayle  <roger@eyesopen.com>

        * alias.c (init_alias_analysis): Correct whitespace.
        * bb-reorder.c (fix_edges_for_rarely_executed_code,
        partition_hot_cold_basic_blocks): Likewise.
        * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
        expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
        maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
        fold_builtin_snprintf_chk, fold_builtin_printf,
        fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
        do_mpfr_arg3, do_mpfr_sincos): Likewise.
        * cfgcleanup.c (cleanup_cfg): Likewise.
        * cfgexpand.c (tree_expand_cfg): Likewise.
        * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
        * function.c (get_next_funcdef_no): Likewise.
        * gengtype.c (main): Likewise.
        * genmodes.c (main): Likewise.
        * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
        * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
        * ifcvt.c (noce_emit_move_insn): Likewise.
        * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
        Likewise.
        * stor-layout.c (get_best_mode): Likewise.
        * tree-ssa-loop-niter.c (get_val_for): Likewise.
        * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
        scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
        perform_var_substitution, solve_graph): Likewise.
        * tree-vrp.c (vrp_finalize): Likewise.

2007-02-01  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
        high part of a paradoxical subreg, return a constant zero.

2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>

        * toplev.c (lang_dependent_init): Call init_set_costs.
        * loop-init.c (loop_optimizer_init): Do not call init_set_costs.

2007-02-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30656
        * fold-const.c (fold_negate_expr): Allow negating a
        constant if overflow does not change.

2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/c-tree.texi (Expression trees): Improve markup.
        * doc/tm.texi (Register Classes, Addressing Modes)
        (Floating Point): Fix spacing after abbreviations.  Fix some
        typos.

2007-02-01  Ben Elliston  <bje@au.ibm.com>

        * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
        * doc/contrib.texi: Likewise.
        * doc/install.texi: Likewise.

2007-01-31  Richard Henderson  <rth@redhat.com>
            Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c: New file.
        * rtl.def (CONCATN): Define.
        * passes.c (init_optimization_passes): Add pass_lower_subreg and
        pass_lower_subreg2.
        * emit-rtl.c (update_reg_offset): New static function, broken out
        of gen_rtx_REG_offset.
        (gen_rtx_REG_offset): Call update_reg_offset.
        (gen_reg_rtx_offset): New function.
        * regclass.c: Revert patch of 2006-03-05, restoring
        reg_scan_update.
        (clear_reg_info_regno): New function.
        * dwarf2out.c (concatn_loc_descriptor): New static function.
        (loc_descriptor): Handle CONCATN.
        * common.opt (fsplit_wide_types): New option.
        * opts.c (decode_options): Set flag_split_wide_types when
        optimizing.
        * timevar.def (TV_LOWER_SUBREG): Define.
        * rtl.h (gen_reg_rtx_offset): Declare.
        (reg_scan_update): Declare.
        * regs.h (clear_reg_info_regno): Declare.
        * tree-pass.h (pass_lower_subreg): Declare.
        (pass_lower_subreg2): Declare.
        * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
        (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
        -fsplit-wide-types.
        * doc/rtl.texi (Regs and Memory): Document concat and concatn.
        * Makefile.in (OBJS-common): Add lower-subreg.o.
        (lower-subreg.o): New target.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.

2007-01-31  Anatoly Sokolov <aesok@post.ru>

        PR target/19087
        * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.

2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/29335
        * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.

2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.h: Include vec-prim.h.
        (enum li_flags): Remove LI_ONLY_OLD.
        (loop_iterator): Changed.
        (fel_next, fel_init): Iterate over loop tree.
        (FOR_EACH_LOOP_BREAK): New macro.
        * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
        FOR_EACH_LOOP.
        * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
        * modulo-sched.c (sms_schedule): Ditto.
        * tree-vectorizer.c (vectorize_loops): Ditto.
        * doc/loop.texi: Update information on loop numbering and behavior of
        FOR_EACH_LOOP wrto new loops.
        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
        add_to_evolution_1): Test nestedness of loops instead of comparing
        their numbers.
        * tree-chrec.c (chrec_fold_plus_poly_poly,
        chrec_fold_multiply_poly_poly, chrec_evaluate,
        hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
        reset_evolution_in_loop): Ditto.
        * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.

2007-01-31  Dirk Mueller  <dmueller@suse.de>

        * c-common.c (warn_about_parentheses): Separate warning about
        un-parenthized sequence of comparison operators from the one
        which is supposed to warn about x <= y <= z.

2007-01-31  Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_isinf.
        (isinf_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize isinf_optab.
        * genopinit.c (optabs): Implement isinf_optab using isinf?f2
        patterns.
        * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
        (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
        using isinf_optab.
        (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
        expand_builtin_interclass_mathfn.
        * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
        * config/i386/i386.md (UNSPEC_FXAM): New constant.
        (fxam<mode>2_i387): New insn pattern.
        (isinf<mode>2) New expander to implement isinf, isinff and isinfl
        built-in functions as x87 inline asm.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.

2007-01-30  Eric Christopher  <echristo@apple.com>

        * config.gcc: Add geode.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
        ipa-inline.c, tree-profile.c, tree-ssa-live.c,
        tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
        value-prof.c: Fix comment typos.

2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24745
        * doc/invoke.texi (Wpointer-arith): Document warning.

2007-01-30  Janis Johnson  <janis187@us.ibm.com>

        * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
        the list of discrepancies from the draft TR.

2007-01-30  Dirk Mueller  <dmueller@suse.de>

        PR c++/30601
        * doc/invoke.texi (-Wreturn-type): Update description to
        match new behavior.

2007-01-30  Richard Sandiford  <richard@codesourcery.com>

        * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.

2007-01-30  Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c (expand_builtin_int_interclass_roundingfn): New function
        to handle optabs that operate on floating point input argument and
        output to integer output.
        (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
        (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
        (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
        expand_builtin_interclass_mathfn ().
        * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
        (ilogbsi2): Remove.
        (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
        ilogbl built-in functions as x87 intrinsics.

2007-01-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27657
        * dwarf2out.c (reference_to_unused): Query varpool if the
        variable was output.

2007-01-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30313
        * passes.c (execute_one_pass): Reset in_gimple_form to not
        confuse non-unit-at-a-time mode.

2007-01-29  Roger Sayle  <roger@eyesopen.com>
            Richard Guenther  <rguenther@suse.de>

        * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
        avoid undefined behaviour on overflow.  Use force_fit_type_double
        to construct the constant with the specified TREE_OVERFLOW.

2007-01-29  Janis Johnson  <janis187@us.ibm.com>

        * config/dfp-bit.c: Add parameterized support for fp exceptions.
        * config/dfp-bit.h: Ditto.

2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-decl.c (pop_scope): Replace warnings with call to
        warn_for_unused_label.
        * c-common.h (warn_for_unused_label): Declare.
        * c-common.c (warn_for_unused_label): Define.

2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * tree-optimize.c (update_inlined_to_pointers): Delete unused
        function.

2007-01-29  Janis Johnson  <janis187@us.ibm.com>

        * Makefile.in (USER_H): Remove decfloat.h.
        * ginclude/decfloat.h: Delete, moving contents to ...
        * ginclude/float.h: Add support for decimal floating point,
        guarded by __STDC_WANT_DEC_FP__.

2007-01-29  Mike Stump  <mrs@apple.com>

        * doc/gccint.texi (Top): Rename Loop Representation to Loop
        Analysis and Representation to resolve case insensitive conflict.
        * doc/loop.texi (Loop Analysis and Representation): Likewise.

2007-01-28  Daniel Berlin  <dberlin@dberlin.org>

        * tree.h (struct tree_memory_tag): Add aliases member.
        (MTAG_ALIASES): New macro.
        * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
        (add_may_alias): Remove pointer-set. Update for may_aliases being
        a bitmap.
        (mark_aliases_call_clobbered): Update for may_aliases being a
        bitmap.
        (compute_tag_properties): Ditto.
        (create_partition_for): Ditto.
        (compute_memory_partitions): Ditto.
        (dump_may_aliases_for): Ditto.
        (is_aliased_with): Ditto.
        (add_may_alias_for_new_tag): Ditto.
        (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
        (compute_is_aliased): New function.
        (compute_may_aliases): Call compute_is_aliased).
        (init_alias_info): Initialize alias_bitmap_obstack.
        (union_alias_set_into): New function.
        (compute_flow_sensitive_aliasing): Use union_aliases_into.
        (have_common_aliases_p): Rewrite to take two bitmaps and use
        intersection.
        (compute_flow_insensitive_aliasing): Stop using pointer-sets.
        Update for bitmaps.
        (finalize_ref_all_pointers): Update for add_may_alias changes.
        (new_type_alias): Ditto.
        * tree-flow-inline.h (may_aliases): Return a bitmap.
        * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
        * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
        may_aliases being a bitmap.
        * tree-flow.h (struct var_ann_d): Remove may_aliases member.
        may_aliases now returns a bitmap.
        * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
        being a bitmap.
        * tree-ssa-operands.c (add_virtual_operand): Update for
        may_aliases being a bitmap.

2007-01-29  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/30630
        * tree-ssa-structalias.c (do_complex_constraint): Mark correct
        variable as changed.

2007-01-29  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/28266
        * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
        expanded only once even if an error occurs.

2007-01-29  Ben Elliston  <bje@au.ibm.com>

        * gcov-io.h (__gcov_indirect_call_profiler): Declare.
        (__gcov_average_profiler): Likewise.
        (__gcov_ior_profiler): Likewise.
        (__gcov_merge_ior): Likewise.

2007-01-28  Jan Hubicka  <jh@suse.cz>

        * builtins.c (expand_builtin_memset): Fix typo in my last patch.
        * value-prof.c (stringop_block_profile): Likewise.

2007-01-28  Jan Hubicka  <jh@suse.cz>

        * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
        variant handling histograms; add wrapper.
        (clear_storage_via_libcall): Export.
        (emit_block_move_hints): Break out from ...; add histograms.
        (emit_block_move): ... this one.
        (clear_storage_hints): Break out from ...; add histograms.
        (clear_storage): ... this one.
        (set_storage_via_memset): Handle histogram.
        * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
        (clear_storage_hints, clear_storage_via_libcall): Declare.
        (set_storage_via_setmem): Update prototype.
        * doc/md.texi (movmem, setmem): Document new arguments.

        * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
        new histograms.
        (stringop_block_profile): New global function.
        (tree_stringops_values_to_profile): Profile block size and alignment.
        * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
        HIST_TYPE_IOR.
        (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
        (stringop_block_profile): Declare.
        * builtins.c: Include value-prof.h.
        (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
        * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
        (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
        (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
        * profile.c (instrument_values): Add new counters.
        * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
        calls.
        * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
        (tree_init_edge_profiler): Build new profilers.
        (tree_gen_average_profiler, tree_gen_ior_profiler): New.
        (pass_tree_profile): Add dump.
        (tree_profile_hooks): Update.
        * Makefile.in (LIBGCOV): Add new constants.
        * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
        __gcov_ior_profiler): New.
        * i386.md (movmem/setmem expanders): Add new optional arguments.

2007-01-28  David Edelsohn  <edelsohn@gnu.org>

        * doc/md.texi (Standard Pattern Names): Document blockage pattern.

2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-unswitch.c: Include tree-inline.h.
        (tree_unswitch_single_loop): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-ssa-loop-manip.c: Include tree-inline.h.
        (can_unroll_loop_p): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
        Pass eni_size_weights to estimate_num_insns.
        * tree.h (init_inline_once): Export.
        * toplev.c (backend_init): Call init_inline_once.
        * cgraphunit.c (cgraph_process_new_functions,
        cgraph_analyze_function): Pass eni_inlining_weights to
        estimate_num_insns.
        * ipa-inline.c (compute_inline_parameters): Ditto.
        * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
        to estimate_num_insns.
        (try_unroll_loop_completely): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
        ot estimate_num_insns.
        * tree-ssa-loop-prefetch.c: Include tree-inline.h.
        (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
        * tree-inline.c (eni_inlining_weights, eni_size_weights,
        eni_time_weights): New variables.
        (init_inline_once): Initialize them.
        (struct eni_data): Mew.
        (estimate_num_insns_1, estimate_num_insns): Use weights.
        * tree-inline.h (struct eni_weights_d): New.
        (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
        (estimate_num_insns): Declaration changed.
        * cfgloop.h (tree_num_loop_insns): Declaration changed.
        * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
        tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.

2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-data-ref.c (conflict_fn): Assert that the number of affine
        relations in the conflict function is valid.

2007-01-27  Ian Lance Taylor  <iant@google.com>

        * common.opt: Add fstrict-overflow.
        * opts.c (decode_options): Set flag_strict_overflow if -O2.
        * flags.h (TYPE_OVERFLOW_WRAPS): Define.
        (TYPE_OVERFLOW_UNDEFINED): Define.
        (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
        Replace all uses.
        * tree.h (TYPE_TRAP_SIGNED): Don't define.
        * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
        (fold_negate_expr): Likewise.
        (make_range): Likewise.
        (extract_muldiv_1): Likewise.
        (maybe_canonicalize_comparison): Likewise.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.
        (tree_expr_nonnegative_p): Likewise.
        (tree_expr_nonzero_p): Likewise.
        * tree-vrp.c (compare_values): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
        Likewise.
        (nowrap_type_p): Likewise.
        * tree-scalar-evolution.c (simple_iv): Likewise.
        * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
        (build_range_check): Likewise.
        (extract_muldiv_1): Likewise.
        (fold_comparison): Likewise.
        * tree-vrp.c (vrp_int_const_binop): Likewise.
        (extract_range_from_unary_expr): Likewise.
        * convert.c (convert_to_integer): Likewise.
        * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.
        * optabs.c (optab_for_tree_code): Likewise.
        * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
        * simplify-rtx.c (simplify_const_relational_operation): Check
        flag_strict_overflow and flag_trapv.
        (simplify_const_relational_operation): Likewise.
        * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
        (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
        -fstrict-overflow.

2007-01-27  Roger Sayle  <roger@eyesopen.com>

        * tree.c (tree_fold_gcd): Delete.
        * tree.h (tree_fold_gcd): Remove prototype.
        * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
        test whether one constant integer is a multiple of another.  Instead
        call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
        * fold-const.c (multiple_of_p):  We've determined both TOP and
        BOTTOM are integer constants so we can call int_const_binop directly
        instead of the more generic const_binop.

2007-01-27  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
        1*X check that the constant hasn't overflowed, to preserve the
        TREE_OVERFLOW bit.
        (round_up): Provide an efficient implementation when rouding-up an
        INTEGER_CST to a power-of-two.

2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/sourcebuild.texi: Add comma for clarity.
        * doc/extend.texi: Fix some typos.
        * doc/passes.texi: Likewise.
        * doc/cppinternals.texi: Likewise.
        * doc/c-tree.texi: Likewise.
        * doc/tree-ssa.texi: Likewise.
        * doc/install.texi: Likewise.

2007-01-27  Jan Hubicka  <jh@suse.cz>

        * tree-sra.c (sra_walk_function): Don't rely on aliases being build.
        (pass_sra): Do not require alias information.
        * passes.c (init_optimization_passes): Add SRA

2007-01-27  Steven Bosscher  <steven@gcc.gnu.org>

        * tracer.c (rest_of_handle_tracer): We already cleaned
        up the CFG in tracer() so don't do it here again.
        * cfgcleanup.c (rest_of_handle_jump2): Don't repeat
        cleanup_cfg here, either.  And don't call renumber_insns.

        * cfgrtl.c (rtl_verify_flow_info_1): Don't verify that BB_END
        and BB_HEAD are in the insn stream here.  Instead make sure
        that BB_INSN is valid on all insns.  Also, do check here that
        there are no pending branch predictions...
        (rtl_verify_flow_info): ...instead of doing it here.  Checks
        for BB_END and BB_HEAD moved from rtl_verify_flow_info_1 to
        here.

2007-01-26  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_swap_binary_operands_p): New helper
        function to simplify/factorize operand order canonicalization.
        (ix86_fixup_binary_operands): Reorganize using the above function.
        (ix86_binary_operator_ok): Likewise.

2007-01-27  Jakub Jelinek  <jakub@redhat.com>

        * genattrtab.c (struct attr_value_list, insn_code_values): Move to
        file scope from optimize_attrs.
        (simplify_test_exp): If insn_code_values is not NULL, use it to speed
        up search.
        (optimize_attrs): Clear insn_code_values after freeing it.

2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-address.c (create_mem_ref): Remove ", bsi" from
        a parts.base assignment.

2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-data-ref.c (dump_subscript): Use dump_conflict_function.
        (compute_subscript_distance, initialize_data_dependence_relation,
        finalize_ddr_dependent, analyze_ziv_subscript,
        analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_univar,
        compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
        analyze_siv_subscript, analyze_miv_subscript,
        analyze_overlapping_iterations, subscript_dependence_tester_1,
        compute_self_dependence, free_dependence_relation): Work
        with affine_fn instead of chrecs.
        (dump_affine_function, dump_conflict_function, affine_function_equal_p,
        common_affine_function, affine_function_base,
        affine_function_constant_p, affine_fn_op, affine_fn_plus,
        affine_fn_minus, affine_fn_free, conflict_fn_not_known,
        conflict_fn_no_dependence, free_conflict_function, free_subscripts,
        conflict_fn, affine_fn_cst, affine_fn_univar): New functions.
        (all_chrecs_equal_p): Removed.
        * tree-data-ref.h (affine_fn, conflict_function): New types.
        (struct subscript): Change type of conflicting_iterations_in_a
        and conflicting_iterations_in_b.

2007-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR other/30182
        * config/pa/pa.h (TARGET_HPUX_11): New.
        * config/pa/pa-hpux11.h (TARGET_HPUX_11): New.
        * config/pa/pa.c (pa_init_builtins): Use TARGET_HPUX_11.

2007-01-26  Daniel Berlin  <dberlin@dberlin.org>
        Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (solve_graph): Handle case
        we merged the variable to another.

2007-01-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_1): Treat ccos and ccosh as 'even'
        functions.

        * fold-const.c (negate_mathfn_p): Treat casin, casinh, catan,
        catanh, cproj, csin, csinh, ctan and ctanh as 'odd' functions.

2007-01-25  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_cannot_change_mode_class): We don't
        allow changes to modes which don't fit in those registers.

        * reload1.c (choose_reload_regs): Check for invalid subregs before
        computing their locations, not after.

2007-01-25  Geoffrey Keating  <geoffk@apple.com>

        PR 25127
        * config/rs6000/rs6000.c (first_altivec_reg_to_save): On Darwin,
        save Altivec registers in an eh_return function.
        (compute_vrsave_mask): Likewise.
        (rs6000_stack_info): Correct AIX/Darwin stack alignment computation
        for saving Altivec registers.
        (rs6000_emit_prologue): Don't allocate stack twice in
        eh_return function.  Correct expected value of altivec_save_offset
        when using save_world.  Describe save of R0 to stack when using
        save_world.  Describe stack pointer adjustment when using
        save_world.  Remove duplicated eh_return parameter register saving.
        Update sp_offset variable after save_world.
        * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA): Remove
        darwin-world.asm.
        (LIB2FUNCS_EXTRA): Add darwin-world.asm.
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): -m64
        implies Altivec.

2007-01-25  Steve Ellcey  <sje@cup.hp.com>

        * config.gcc (ia64*-*-hpux*): Make posix threads the default.

2007-01-25  Steve Ellcey  <sje@cup.hp.com>

        PR other/30182
        * config/pa/pa.c (pa_init_builtins): Set asm names for finite routines.
        * config/ia64/ia64.c (ia64_init_builtins):  Ditto.

2007-01-25  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-Wcoverage-mismatch): Document.
        * common.opt (-Wcoverage-mismatch): New warning option.
        * coverage.c (get_coverage_counts): Ignore coverage mismatch
        if -Wcoverage-mismatch is given.

2007-01-25  Razya Ladelsky  <razya@il.ibm.com>

        * ipa-cp.c (ipcp_insert_stage, ipcp_driver): Support for SSA.
        (ipcp_driver): Change to static definition.
        Add dumping of the ifunctions.
        (constant_val_insert): Remove unused parameter. Support for SSA.
        (ipcp_propagate_const): Support for SSA.
        (ipcp_profile_bb_print): Print only analyzed nodes.
        (ipcp_replace_map_create): Remove support for Fortran constant
        for now.
        * ipa-prop.c (ipa_method_modify_stmt,
        ipa_callsite_compute_param): Support for SSA.
        * ipa-prop.h (ipcp_driver): Remove declaration.
        (IS_VALID_TREE_MAP_INDEX): Add define.

2007-01-24  Geoffrey Keating  <geoffk@apple.com>

        * unwind-dw2.c (execute_stack_op): Handle DW_OP_swap.

2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/30447
        * builtins.c (fold_builtin_cabs): Use MPFR to evaluate a
        constant argument to cabs and do it without checking for
        -funsafe-math-optimizations.

2007-01-24  Douglas Gregor  <dgregor@osl.iu.edu>

        * c-common.h (RID_FIRST_CXX0X): New.
        (RID_LAST_CXX0X): New.
        * c-opts.c (c_common_handle_option): -Wc++0x-compat is triggered
        by -Wall.
        * c.opt (Wc++0x-compat): New.
        * doc/invoke.texi (-Wc++0x-compat): Document.

2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_carg): New.
        (fold_builtin_1): Use it.

2007-01-24  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining): Initialize initial_insns.

        * ipa-inline.c (initial_insns, max_insns): Delete.
        (compute_max_insns): New function.
        (cgraph_decide_inlining_of_small_function): Use it; take minimal amount
        of insns as base for code growth.
        (cgraph_decide_inlining): Make initial_insns local; do not compute
        max_insns.
        * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 60.
        * doc/invoke.texi (inline-unit-growth): Update docs.

2007-01-24  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.h (x86_cmpxchg16b): Remove const.
        (TARGET_CMPXCHG16B): Define to x86_cmpxchg16b.
        * config/i386/i386.c (x86_cmpxchg16b): Remove const.
        (override_options): Add PTA_CX16 flag.  Set x86_cmpxchg16b
        for CPUs that have PTA_CX16 set.

        PR middle-end/27416
        * gimplify.c (omp_check_private): New function.
        (gimplify_scan_omp_clauses): Use it for
        firstprivate/lastprivate/reduction.

        PR middle-end/30494
        * gimplify.c (omp_add_variable): Don't call omp_notice_variable
        on TYPE_SIZE_UNIT for GOVD_LOCAL VLAs.

        PR middle-end/30421
        * omp-low.c (lower_omp_for_lastprivate): Add dlist argument.
        If lower_lastprivate_clauses emits some statements, append them
        to dlist rather than body_p and to body_p append an initializer.
        (lower_omp_for): Adjust caller.

2007-01-24  Steve Ellcey  <sje@cup.hp.com>

        * target.h (globalize_decl_name): New.
        * target-def.h (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
        * output.h (default_globalize_decl_name): New.
        * varasm.c (asm_output_bss): Use globalize_decl_name instead of
        globalize_label.
        (globalize_decl): Ditto.
        (default_globalize_decl_name): New.
        * config/ia64/ia64.c (ia64_globalize_decl_name): New.
        (ia64_handle_version_id_attribute): New.
        (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
        (ia64_asm_output_external): Use globalize_decl_name instead
        of globalize_label.
        * doc/extend.texi (version_id): New pragma.
        * doc/tm.texi (ARGET_ASM_GLOBALIZE_DECL_NAME): New target hook.

2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * unwind-dw2-fde.c (get_cie_encoding): Replaced _Unwind_Word with
        _uleb128_t and _Unwind_SWord with _sleb128_t.
        * unwind-dw2.c (extract_cie_info, execute_stack_op, execute_cfa_program,
        uw_frame_state_for, uw_update_context_1): Likewise.
        * unwind-c.c (parse_lsda_header, PERSONALITY_FUNCTION): Likewise.
        * unwind-pe.h (read_uleb128, read_sleb128,
        read_encoded_value_with_base): Likewise.
        * unwind-generic.h: Define _sleb128_t and _uleb128_t types.

2007-01-24  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Get the fndecl
        for cexp in the correct way.

2007-01-24  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (eliminate_unnecesary_stmts): Remove dead LHS of calls.

2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * c-cppbuiltin.c (builtin_define_type_sizeof): New function.
        (c_cpp_builtins): New builtin macros: __SIZEOF_INT__, __SIZEOF_LONG__,
        __SIZEOF_LONG_LONG__, __SIZEOF_SHORT__, __SIZEOF_POINTER__,
        __SIZEOF_FLOAT__, __SIZEOF_DOUBLE__, __SIZEOF_LONG_DOUBLE__,
        __SIZEOF_SIZE_T__, __SIZEOF_WCHAR_T__, __SIZEOF_WINT_T__ and
        __SIZEOF_PTRDIFF_T__.
        * doc/cpp.texi: Documentation for the new builtin macros added.

2007-01-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (tanxf2, tan<mode>2, atan<mode>2, log<mode>2,
        log10<mode>2, log2<mode>2, expxf2, exp10xf2, exp2xf2): Use op2
        instead of operands[2] to avoid access past the end of array.

2007-01-24  Richard Sandiford  <richard@codesourcery.com>

        * reload1.c (emit_reload_insns): Pass the reload register
        for a non-spill output reload through forget_old_reloads_1.

2007-01-23  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        _SOFT_DOUBLE if doubles use software floating-point.
        * config/rs6000/libgcc-ppc-glibc.ver: Export additional long
        double functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
        * config/rs6000/darwin-ldouble.c: Also compile functions for
        hard-float without FPRs.  Use fmsub function for all __NO_FPRS__
        cases.  Compile extra functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
        * config/rs6000/linuxspe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Remove
        commented-out long double override.
        (CPP_LONGDOUBLE_DEFAULT_SPEC): Likewise.
        * config/rs6000/eabispe.h: Likewise.
        * config/rs6000/rs6000.c (rs6000_override_options): Don't override
        long double for non-SPE.
        (rs6000_handle_option): Likewise.
        (invalid_e500_subreg): Disallow more subregs involding DImode,
        DFmode, TImode or TFmode.
        (rs6000_legitimate_offset_address_p): Check TFmode offsets for
        E500 double.
        (legitimate_lo_sum_address_p): Also check for TFmode for E500
        double.
        (rs6000_legitimize_address): Also handle TFmode for E500 double.
        (rs6000_legitimize_reload_address): Also handle TFmode for E500
        double.
        (rs6000_legitimate_address): Also check for TFmode for E500
        double.
        (rs6000_emit_move): Use DFmode subregs of TFmode for E500 double.
        (spe_build_register_parallel): Handle TFmode and TCmode.
        (rs6000_spe_function_arg): Handle TFmode and TCmode for E500
        double.
        (function_arg): Handle TFmode and TCmode for E500 double.
        (rs6000_init_libfuncs): Initialize extra libfuncs for soft double
        in general.
        (print_operand): Handle TFmode and TImode for %y.
        (rs6000_generate_compare): Handle TFmode comparisons for E500
        double.
        (spe_func_has_64bit_regs_p): Check for TFmode for E500 double.
        (rs6000_function_value): Handle TFmode and TCmode for E500 double.
        (rs6000_libcall_value): Handle TFmode and TCmode for E500 double.
        * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Check for
        TFmode for E500 double.
        * config/rs6000/rs6000.md (FP): Allow TF for E500 double.
        (floatsidf2): Enable for E500 double.
        (movtf_softfloat): Use rs6000_nonimmediate_operand.
        (extenddftf2): Change to extenddftf2_fprs.
        (extenddftf2): Call gen_spe_extenddftf2 or gen_extenddftf2_fprs
        depending on TARGET_E500_DOUBLE.
        (extendsftf2): Enable for E500 double.
        (trunctfdf2): Enable for E500 double.
        (trunctfsf2): Change to trunctfsf2_fprs.
        (trunctfsf2): Call gen_spe_trunctfsf2 or gen_trunctfsf2_fprs
        depending on TARGET_E500_DOUBLE.
        (floatsitf2): Enable for E500 double.
        (fix_trunctfsi2): Change to fix_trunctfsi2_fprs.
        (fix_trunctfsi2): Call gen_spe_fix_trunctfsi2 or
        gen_fix_trunctfsi2_fprs depending on TARGET_E500_DOUBLE.
        (negtf2): Change to negtf2_internal.
        (negtf2): New expander.
        (abstf2): Enable for E500 double.  Call gen_spe_abstf2_tst,
        gen_spe_abstf2_cmp or gen_abstf2_internal depending on
        TARGET_E500_DOUBLE and flag_unsafe_math_optimizations.
        (movdi_internal32): Use rs6000_nonimmediate_operand.
        (unnamed splitter): Likewise.
        * config/rs6000/spe.md (CMPTFEQ_GPR, TSTTFEQ_GPR, CMPTFGT_GPR,
        TSTTFGT_GPR, CMPTFLT_GPR, TSTTFLT_GPR): New unspecs.
        (SPE64TF, DITI): New mode macros.
        (frob_df_di): Change to frob_<SPE64:mode>_<DITI:mode>; allow more
        modes.
        (frob_tf_ti): New.
        (frob_<mode>_di_2): New.
        (frob_tf_di_8_2): New.
        (frob_di_df): Change to frob_di_<mode>; allow more modes.
        (frob_ti_tf): New.
        (frob_di_df_2): Change to frob_<DITI:mode>_<SPE64:mode>_2; allow
        more modes.
        (frob_ti_<mode>_8_2): New.
        (frob_ti_tf_2): New.
        (mov_si<mode>_e500_subreg0, mov_si<mode>_e500_subreg0_2,
        mov_si<mode>_e500_subreg4, mov_si<mode>_e500_subreg4_2): Allow
        TFmode.
        (mov_sitf_e500_subreg8, mov_sitf_e500_subreg8_2,
        mov_sitf_e500_subreg12, mov_sitf_e500_subreg12_2): New.
        (spe_trunctfdf2_internal1, spe_trunctfsf2, spe_extenddftf2,
        spe_fix_trunctfsi2, spe_fix_trunctfsi2_internal,
        spe_negtf2_internal, spe_abstf2_cmp, spe_abstf2_tst): New.
        (cmptfeq_gpr, tsttfeq_gpr, cmptfgt_gpr, tsttfgt_gpr, cmptflt_gpr,
        tsttflt_gp): New.

2007-01-23  Ian Lance Taylor  <iant@google.com>

        * Makefile.in (OBJS-common): Reformat, alphabetize, but put
        insn-*.o first.
        (OBJS-archive): Reformat, alphabetize.
        (OBJS): Change out_object_file to OBJS-md.

2007-01-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Use REG_P, MEM_P, CONST_INT_P, LABEL_P,
        JUMP_P and CALL_P predicates where applicable.
        * config/i386/i386.c: Ditto.
        * config/i386/i386.md: Ditto.
        * config/i386/mmx.md: Ditto.
        * config/i386/predicates.md: Ditto.

2007-01-22  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.h: Fix comment.

2007-01-22  Jan Hubicka  <jh@suse.cz>

        * passes.c (init_optimization_passes): Do not rerun
        pass_early_warn_uninitialized.

2007-01-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30038
        * tree-ssa-math-opts.c (maybe_record_sincos): New static helper
        function.
        (execute_cse_sincos_1): Likewise.
        (execute_cse_sincos): Likewise.
        (gate_cse_sincos): Likewise.
        (pass_cse_sincos): New pass CSEing sin() and cos() calls using
        the cexpi() canonicalization of sincos().
        * tree-pass.h (pass_cse_sincos): Declare.
        * passes.c (init_optimization_passes): New pass pas_cse_sincos.

2007-01-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/29329
        * combine.c (replaced_rhs_insn): Rename to i2mod.
        (replaced_rhs_value): Rename to i2mod_new_rhs.
        (i2mod_old_rhs): New global variable.
        (combine_instructions): Adjust for above change.  Save a copy of
        the old RHS into i2mod_old_rhs when the contents of a REG_EQUAL
        note are substituted in the second instruction.
        (distribute_notes) <REG_DEAD>: Adjust for above change.  Do not
        ditch the note if it pertains to the second eliminated register
        and this register is mentioned in i2mod_old_rhs.

        Revert:
        2006-09-12  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * combine.c (distribute_notes) <REG_DEAD>: Do not consider SETs past
        the insn to which the note was originally attached.

2007-01-21  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (inlining_mode): Comment, move up.
        (cgraph_decide_inlining_incrementally): Do not perform inlining
        itself; fix handling of flattening of self recursive functions.
        (cgraph_find_cycles): Remove.
        (cgraph_flatten_node): Remove.
        (cgraph_decide_inlining): Use incremental inliner to handle flattening.
        (try_inline): New function.
        (cgraph_early_inlining): Update call of
        cgraph_decide_inlining_incrementally.  Apply inlining here.
        (apply_inline): Update call of cgraph_decide_inlining_incrementally.

2007-01-21  Dirk Mueller  <dmueller@suse.de>

        PR bootstrap/30511
        * tree-vrp.c (check_array_bounds): do not warn
        about ADDR_EXPR's of ARRAY_REF's which are immediately
        used in binary expressions.

2007-01-21  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.h (struct _stmt_vec_info): Add new field
        read_write_dep and macros for its access.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize the new field.
        * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Remove
        argument, call vect_check_interleaving for every independent pair of
        data-refs. Mark loads that access the same memory location as a store
        in the loop.
        (vect_check_dependences): Remove.
        (vect_analyze_data_ref_dependences): Remove  vect_check_dependences
        call, fix the call to vect_analyze_data_ref_dependence.
        (vect_analyze_data_ref_access): For statements that access the same
        data-ref, check that they are not stores; for loads, check that there
        is no store that access the same location.

2007-01-20  Roger Sayle  <roger@eyesopen.com>
            Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (-fdump-rtl-combine): Fix under/overfull hbox.
        (-fdump-rtl-stack): Likewise.
        (-fno-signed-zeros): Use @minus{} for a minus sign.  Correct typo.
        (-mcheck-zero-division, -mcpu): Fix under/overfull hbox.
        (-mpt-fixed): Use @minus{} for minus sign.
        (Using Precompiled Headers): Fix under/overfull hbox.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-flow.h (struct stmt_ann_d): Move references_memory to proper
        place within annotation.

2007-01-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (output_move_double): Change array size of xoperands to 4.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-tailcall.c (adjust_return_value): Do not use RESULT_DECL
        as temporary.

2007-01-19  Ian Lance Taylor  <iant@google.com>

        * expmed.c (expand_divmod) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]: Cast
        constant to unsigned HOST_WIDE_INT before negating.

2007-01-19  Ian Lance Taylor  <iant@google.com>

        * tree-ssa-operands.h (struct vuse_vec_d): Change num_vuse field
        to unsigned.
        (VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Use unsigned comparison.
        (VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_ELEMENT_VAR) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
        (realloc_vdef, realloc_vuse): Change second parameter to
        unsigned.
        (ssa_operand_iterator_d): Change vuse_index and mayuse_index
        fields to unsigned.
        * tree-ssa-operands.c (realloc_vop): Change num_elem parameter to
        unsigned. Change x and lim locals to unsigned.
        (realloc_vdef, realloc_vuse): Change num_elem parameter to
        unsigned.
        (finalize_ssa_vuse_ops): Change old_i local to unsigned.
        (copy_virtual_operands): Change i and n locals to unsigned.

2007-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/29335
        * builtins.c (fold_builtin_1): Handle builtin fdim.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-ssa.c (init_tree_ssa): Do not call init_alias_heapvars.
        * tree-ssa-structalias.c (compute_points_to_sets): Do call
        init_alias_heapvars.
        (init_alias_heapvars): Initialize only when not already initialized.
        (delete_alias_heapvars): Set heapvar_for_stmt to NULL.

2007-01-19  Roger Sayle  <roger@eyesopen.com>

        * common.opt (fsigned-zeros): New command line option.
        * flags.h (HONOR_SIGNED_ZEROS): Control via flag_signed_zeros instead
        of flag_unsafe_math_optimizations.
        * opts.c (set_fast_math_flags): The -ffast-math command line option
        implies -fno-signed-zeros.
        (fast_math_flags_set_p): Likewise.

        * doc/invoke.texi: Document new -fno-signed-zeros option, and update
        the documentation of -ffast-math appropriately.  Wrap long lines.

2007-01-19  Steve Ellcey  <sje@cup.hp.com>

        * system.h (ASM_MAKE_LABEL_LINKONCE): Poison.
        * varasm.c (globalize_decl): Remove ASM_MAKE_LABEL_LINKONCE ifdef.

2007-01-19  Tomas Bily  <tbily@suse.cz>

        * cgraphunit.c (cgraph_finalize_function): Updating of pid
        * tree-profile.c:
        (tree_init_ic_make_global_vars): New function
        (tree_init_edge_profiler): call of tree_init_ic_make_global_vars
        (tree_gen_ic_profiler): New function
        (tree_gen_ic_func_profiler): New function
        (tree_profiling): Added calling of tree_gen_ic_func_profiler
        (tree_profile_hooks): Added hook for indirec/virtual calls
        * value-prof.c (tree_find_values_to_profile): New case for
        indirect calls
        (tree_values_to_profile): Call for determining indirect/virtual
        counters
        (tree_indirect_call_to_profile): New function
        (tree_ic_transform): New function
        (tree_ic): New function
        (find_func_by_pid): New function
        (init_pid_map): New function
        (tree_value_profile_transformations): Added check for
        indirect/virtual call transformation
        * value-prof.h (enum hist_type): New counter type for
        indirect/virtual calls
        (profile_hooks): Added new hook for profiling indirect/virtual
        calls
        * profile.c (instrument_values): New case for indirect/virtual
        call added
        * gcov-io.h (GCOV_LAST_VALUE_COUNTER): Changed to 6
        (GCOV_COUNTER_V_INDIR): New counter type
        (GCOV_COUNTER_NAMES): New name of counter "indirect" added
        (GCOV_MERGE_FUNCTIONS): New merge function for indirect/virtual
        call added
        * cgraph.c: Definition of cgraph_max_pid
        (cgraph_create_node): Default init of pid attribute
        * cgraph.h: Declaration of cgraph_max_pid
        (struct cgraph_node): Added pid attribute
        * libgcov.c (__gcov_indirect_call_profiler): New function
        (__gcov_one_value_profiler_body): New function
        (__gcov_one_value_profiler): Body was moved to
        __gcov_one_value_profiler_body and calls it

2007-01-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/gty.texi (Options): Document the mark_hook option to GTY.
        * gengtype.c (write_types_data, write_func_for_structure,
        write_types, ggc_wtd, pch_wtd): Add skip_hooks to
        write_types_data, ggc_wtd, pch_wtd for processing mark_hook.
        (walk_type, write_func_for_structure): Generate the mark_hook if
        needed.

2007-01-19  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of
        'early' argument take inlining mode argument specifying whether to
        inline for size/speeed or all functions; add support for flattening;
        improve dumpting.
        (cgraph_early_inlining): Update call of decide_inlining_incrementally.

2007-01-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/17947
        * toplev.c (warn_deprecated_use): Use %qD instead of %qs to print
        the name of the declared identifier.

2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * config/i386.h (CONDITIONAL_REGISTER_USAGE): Store
        result of PIC_OFFSET_TABLE_REGNUM in temporary variable to avoid
        duplicate evaluation.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (acos<mode>2): Rename from acossf2 and acosdf2.
        Macroize expander using X87MODEF12 mode macro.  Extend operand 1
        to XFMode, use acosxf2 and truncate result to requested mode.
        Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (asin<mode>2): Similarly, with asin expanders.
        (*fscalexf4_i387): Rename from *fscalexf4.
        (expNcorexf3): New expander.
        (expxf2, exp10xf2, exp2xf2): Use expNcorexf3 expander.
        (exp<mode>2): Rename from expsf2 and expdf2. Macroize expander using
        X87MODEF12 mode macro.  Extend operand 1 to XFMode, use expxf2 and
        truncate result to requested mode. Use SSE_FLOAT_MODE_P to disable
        patterns for SSE math.
        (exp10<mode>2): Similarly, with exp10 expanders.
        (exp2<mode>2): Similarly, with exp2 expanders.
        (expm1<mode>2): Similarly, with expm1 expanders.
        (ldexp<mode>3): Similarly, with ldexp expanders.
        (log<mode>2, log10<mode>2, log2<mode>2, log1p<mode>2, logb<mode>2):
        Use gen_truncxf<mode>2_i387_noop to truncate result.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Define to 32
        for ColdFire targets.

2007-01-19  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (M68K_STATIC_CHAIN_REG_NAME): New macro.
        (INITIALIZE_TRAMPOLINE): Use STATIC_CHAIN_REGNUM.
        (__transfer_from_trampoline): Use M68K_STATIC_CHAIN_REG_NAME.
        * config/m68k/m68kelf.h (STATIC_CHAIN_REGNUM): Override.
        (M68K_STATIC_CHAIN_REG_NAME): Likewise.
        * config/m68k/netbsd-elf.h (M68K_STATIC_CHAIN_REG_NAME): Likewise.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (adddi_dilshr32): Rename to...
        (*adddi_dilshr32): ...this.  Fix formatting.  Remove commented-out
        non-canonical pattern.  Restrict to !TARGET_COLDFIRE.
        (*adddi_dilshr32_cf): New pattern.
        (adddi3, subdi3): Remove first alternatives.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (notice_update_cc): If an SFmode move is
        implemented using move.l, do not use its cc result for floating-point
        comparisons.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Stop the 'T' constraint
        from accepting 's' constraints if flag_pic.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (bordered, bunordered, buneq, bunge, bungt)
        (bunle, bunlt, bltgt, bordered_rev, bunordered_rev, buneq_rev)
        (bunge_rev, bungt_rev, bunle_rev, bunlt_rev, bltgt_rev): Change
        condition from TARGET_68881 to TARGET_HARD_FLOAT.

2007-01-19  Sandra Loosemore  <sandra@codesourcery.com>

        * longlong.h (count_leading_zeros, COUNT_LEADING_ZEROS_0): Add
        ColdFire alternatives.
        * config/m68k/m68k.h (CLZ_DEFINED_VALUE_AT_ZERO): New macro.
        * config/m68k/m68k.md (clzsi2):  Define for ColdFire
        architectures that support ff1 instruction.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (CONST_OK_FOR_LETTER_P): Add an 'R' case.
        * config/m68k/m68k.md (*movsi_cfv4): Fold into...
        (*movsi_cf): ...here.  Remove unnecessary 'R' from 'Rg'.
        Add commentary.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (valid_mov3q_const): Take a HOST_WIDE_INT
        and return a bool.
        (output_move_const_into_data_reg, output_move_simode_const): Delete.
        * config/m68k/m68k.c (const_method, const_int_cost): Take a
        HOST_WIDE_INT instead of an rtx.
        (m68k_rtx_costs): Update call accordingly.
        (output_move_const_into_data_reg): Likewise.  Fix formatting.
        (valid_mov3q_const): Take a HOST_WIDE_INT instead of an rtx.
        Return a bool.
        (output_move_simode_const): Update calls after above changes.
        Rework to use automatic variables and predicates like MEM_P.
        * config/m68k/m68k.md (pushexthisi_const): Update call to
        valid_mov3q_const.

2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * tree-ssa-alias.c (perform_var_substitution): Fix typo
        in dump_flags test.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Fall back to expanding
        via cexp in case sincos is not available.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * doc/tm.texi (TARGET_HAS_SINCOS): Document new target macro.
        * defaults.h (TARGET_HAS_SINCOS): Default to off.
        * config/linux.h (TARGET_HAS_SINCOS): Set to on if we have glibc.
        * config/alpha/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux64.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux64.h (TARGET_HAS_SINCOS): Likewise.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*fpatanxf3_i387, fpatan_extend<mode>xf3_i387):
        New insn patterns.
        (atan2sf3_1, atan2df3_1, atan2xf3_1): Remove insn patterns.
        (atan2xf3): Directly generate RTL pattern.
        (atan2<mode>3): Rename from atan2sf3 and atan2df3 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (atan<mode>2): Rename from atansf2 and atandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.

2007-01-19  Alexandre Oliva  <aoliva@redhat.com>

        * libgcc-std.ver: Fix typo in %inherit for GCC_4.3.0.

2007-01-18  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Optimize away a
        VIEW_CONVERT_EXPR to the same type as it's operand.

2007-01-18  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Only build _SOFT_FLOAT if
        configured for long double 128.

2007-01-18  Mike Stump  <mrs@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Fix build
        error.

2007-01-18  Michael Meissner  <michael.meissner@amd.com>

        * i386.c (ix86_compute_frame_layout): Make fprintf's in #if 0 code
        type correct.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-operands.c (vop_free_bucket_size): Never return value
        greater than NUM_VOP_FREE_BUCKETS.

2007-01-18  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c: Update comments.
        (ptabitmap_obstack): Removed.
        (pta_obstack): New.
        (oldpta_obstack): Ditto.
        (stats): Add a few members.
        (struct variable_info): Remove node, complex, address_taken, and
        indirect_target members. Add oldsolution member.
        (new_var_info): Do not initialize removed members.
        (constraint_expr_type): Remove INCLUDES.
        (constraint_graph): Add size, implicit_preds, rep,
        indirect_cycles, eq_rep, label, direct_nodes, and complex members.
        (FIRST_REF_NODE): New macro.
        (LAST_REF_NODE): Ditto.
        (FIRST_ADDR_NODE): Ditto.
        (find): New function.
        (unite): Ditto.
        (dump_constraint): Do not handle INCLUDES.
        (insert_into_complex): Do not insert duplicate constraints.
        (condense_varmap_nodes): Renamed and rewritten into ...
        (merge_node_constraints): This. Also fix bug in handling of
        offseted copy constraints.
        (clear_edges_for_node): No longer need to deal with preds at all,
        or removing associated preds/succs.
        (merge_graph_nodes): Deal with indirect_cycles.
        Don't deal with predecessors.
        (add_implicit_graph_edge): New function.
        (add_pred_graph_edge): Ditto.
        (add_graph_edge): Don't deal with predecessors.
        (build_constraint_graph): Removed.
        (build_pred_graph): New function.
        (build_succ_graph): Ditto.
        (struct scc_info): Removed in_component. Added roots, dfs, and
        node_mapping. Remove visited_index, unification_queue.
        (scc_visit): Deal with union-find we do now.
        Deal with cycles with REF nodes.
        (collapse_nodes): Renamed and rewritten to ...
        (unify_nodes): This.
        (process_unification_queue): Removed.
        (topo_visit): Cleanup
        (do_da_constraint): Use find.
        (do_sd_constraint): Ditto.
        (do_ds_constraint): Ditto.
        (do_complex_constraint): Ditto.
        (init_scc_info): Update for removed and added members.
        (find_and_collapse_graph_cycles): Renamed and rewritten into ...
        (find_indirect_cycles): This.
        (equivalence_class): New variable.
        (label_visit): New function.
        (perform_variable_substitution): Rewritten.
        (free_var_substitution_info): New function.
        (find_equivalent_node): Ditto.
        (move_complex_constraints): Ditto.
        (eliminate_indirect_cycles): Ditto.
        (solve_graph): Only propagate changed bits.
        Use indirect cycle elimination.
        Use find.
        (tree_id_t): Rename to tree_vi_t, delete id member, add vi member.
        (tree_id_eq): Renamed to ...
        (tree_vi_eq): This. Update for member change
        (insert_id_for_tree): Renamed and rewritten to ...
        (insert_vi_for_tree): This.
        (lookup_id_for_tree): Renamed and rewritten to ...
        (lookup_vi_for_tree): This.
        (get_id_for_tree): Renamed and rewritten to ...
        (get_vi_for_tree): Ditto.
        (get_constraint_exp_from_ssa_var): Update to use get_vi_for_tree.
        (process_constraint): Don't handle INCLUDES.
        Remove special ADDRESSOF case.
        (find_func_aliases): Rewrite to use vi functions instead of id
        ones.
        (create_function_info_for): Ditto.
        (create_variable_info_for): Ditto.
        (intra_create_variable_infos): Ditto.
        (merge_smts_into): Ditto.
        (find_what_p_points_to): Ditto.
        (init_base_vars): Ditto.
        (init_alias_vars): Ditto.
        (remove_preds_and_fake_succs): New function.
        (dump_sa_points_to_info): Dump new stats.
        (dump_solution_for_var): Use find.
        (set_used_smts): Fix formatting.
        (compute_points_to_sets): Updated for new functions.
        (ipa_pta_execute): Ditto.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (TARGET_FUNCTION_VALUE): Expand documentation of
        parallels.
        * calls.c (expand_call): If the return value is a PARALLEL,
        extract its first member.
        * config/m68k/linux.h (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        use FUNCTION_EXTRA_EPILOGUE.
        (m68k_function_value): Return a PARALLEL if the return value
        is of a pointer type.
        * config/m68k/netbsd-elf.h (current_function_returns_pointer)
        (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.md (D0_REG): New constant.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        output a NOP for empty epilogues.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_use_return_insn): Update comments
        before function.  Extend register save check to include all
        registers, not just integer ones.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k-protos.h (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.h (USE_RETURN_INSN): Delete.
        * config/m68k/m68k.c (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.md (return): Use m68k_use_return_insn instead
        of USE_RETURN_INSN.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/fpgnulib.c (__truncdfsf2): Implement round to
        nearest even, fix denormal rounding overflow.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movsf_cf_hard): Use fsmove instead of
        f%$smove and f%$move.
        (movdf_cf_hard): Use fdmove for cases 0 and 3 and fmove for case 1.
        (extendsfdf2_cf): Use fdmove instead of f%&move.
        (truncdfsf2_cf): Use fsmove instead of f%$smove.
        (add<mode>3_cf, sub<mode>3_cf): Use <FP:prec> instead of <FP:round>.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movdf_cf_hard): Use output_move_double for
        GPR<-GPR moves.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * real.h (real_format): Add a canonical_nan_lsbs_set field.
        (coldfire_single_format): Declare.
        (coldfire_double_format): Likewise.
        * real.c (encode_ieee_single): Use canonical_nan_lsbs_set instead
        of qnan_msb_set to determine the lower bits of a canonical
        NaN significand.
        (encode_ieee_double): Likewise.
        (encode_ieee_quad): Likewise.
        (ieee_single_format): Initialize canonical_nan_lsbs_set.
        (mips_single_format): Likewise.
        (ieee_double_format): Likewise.
        (mips_double_format): Likewise.
        (ieee_extended_motorola_format): Likewise.
        (ieee_extended_intel_96_format): Likewise.
        (ieee_extended_intel_128_format): Likewise.
        (ieee_extended_intel_96_round_53_format): Likewise.
        (ibm_extended_format): Likewise.
        (mips_extended_format): Likewise.
        (ieee_quad_format): Likewise.
        (mips_quad_format): Likewise.
        (vax_f_format): Likewise.
        (vax_d_format): Likewise.
        (vax_g_format): Likewise.
        (i370_single_format): Likewise.
        (i370_double_format): Likewise.
        (decimal_single_format): Likewise.
        (decimal_double_format): Likewise.
        (decimal_quad_format): Likewise.
        (c4x_single_format): Likewise.
        (c4x_extended_format): Likewise.
        (real_internal_format): Likewise.
        (coldfire_single_format): New real_format.
        (coldfire_double_format): Likewise.
        * config/pdp11/pdp11.c (pdp11_f_format): Initialize
        canonical_nan_lsbs_set.
        (pdp11_d_format): Likewise.
        * config/m68k/m68k.c (override_options): Override REAL_FORMAT_MODE
        if TARGET_COLDFIRE_CPU.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (m68k_output_pic_call): Delete.
        (output_call, m68k_legitimize_call_address): Declare.
        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Remove unnecessary
        parenthesees.  Add support for a 'W' constraint.
        (LEGITIMATE_PIC_OPERAND_P): Remove SYMBOL_REF_FLAG handling.
        (PRINT_OPERAND_PUNCT_VALID_P): Remove comment about 'o'.
        (m68k_symbolic_call, m68k_symbolic_jump): Declare.
        * config/m68k/m68k.c (m68k_symbolic_call, m68k_symbolic_jump): New
        variables.
        (override_options): Initialize them.  Do not set flag_no_function_cse
        for TARGET_ID_SHARED_LIBRARY.
        (m68k_output_pic_call): Delete.
        (m68k_legitimize_call_address): New function.
        (print_operand): Remove the %o prefix.  Handle the %p prefix.
        (output_call): New function.
        (m68k_output_mi_thunk): Use m68k_symbolic_jump.  Always load the
        target address from the GOT if symbolic jumps are not allowed.
        * config/m68k/m68k.md (call, general_operand): Do not set
        SYMBOL_REF_FLAG.  Use m68k_legitimize_call_address instead.
        Merge separate flag_pic and !flag_pic define_insns into...
        (*call, *call_value): ...these new patterns.  Match the address
        rather than the containing MEM and require it to be a call_operand.
        Use output_call to generate the asm template.
        * config/m68k/predicates.md (const_call_operand): New predicate.
        (call_operand): Likewise.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (REGISTER_MOVE_COST): Simplify definition.
        (STACK_GROWS_DOWNWARD): Define to 1.
        (FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Equivocate
        comments, emphasizing that these values are only defaults.
        * config/m68k/linux.h (LINK_SPEC): Fix formatting in #undef.
        * config/m68k/m68k.c (const_method): Remove trailing whitespace.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (cmpsi): Remove outdated flag_pic handling.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (DATA_REGNO_P, ADDRESS_REGNO_P, INT_REGNO_P)
        (FP_REGNO_P): New macros.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_DATA_P)
        (REGNO_OK_FOR_FP_P, REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Use them.
        (EH_RETURN_STACKADJ_RTX): Use A0_REG.
        * config/m68k/m68k.c (m68k_regno_mode_ok): Use the new REGNO macros.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-rtems*): Add t-floatlib
        to $tmake_file.
        * config/m68k/t-floatlib: New file, extracting common code from...
        * config/m68k/t-m68kbare, config/m68k/t-m68kelf,
        * config/m68k/t-uclinux: Here.
        * config/m68k/fpgnulib.c: Do not compile extendeed precision
        routines on ColdFire targets.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-linux*)
        (m68k-*-rtems*): Use tm_file rather than m68k/m68k.h and
        explicitly set MOTOROLA to 1.
        * config/m68k/m68k.h (MOTOROLA): Simplify definition accordingly.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (PCC_STATIC_STRUCT_RETURN): Delete.
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Add MOTOROLA cases.
        * config/m68k/coff.h (REGISTER_PREFIX_MD): Delete.
        * config/m68k/m68020-elf.h (LIB_SPEC): Delete.
        * config/m68k/m68k-none.h (CC1_SPEC, CPP_SUBTARGET_SPEC): Delete.
        * config/m68k/m68kelf.h (IMMEDIATE_PREFIX, REGISTER_PREFIX_MD)
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Delete.
        (NO_DOLLAR_IN_LABEL, PCC_STATIC_STRUCT_RETURN): Don't undefine.
        (BSS_ASM_OP, ASM_OUTPUT_SKIP, ASM_OUTPUT_ASCII): Delete.
        * config/m68k/m68kemb.h (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/linux.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE)
        (WCHAR_TYPE_SIZE, TARGET_OBJFMT_CPP_BUILTINS): Delete.
        (TARGET_OS_CPP_BUILTINS): Don't define mc68000 and mc68020 here.
        (DBX_REGISTER_NUMBER): Delete.
        * config/m68k/netbsd-elf.h (IMMEDIATE_PREFIX): Delete.
        (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/openbsd.h (PCC_STATIC_STRUCT_RETURN): Define.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Add flat.h to $tm_file.
        * config/flat.h: New file.
        * crtstuff.c (USE_PT_GNU_EH_FRAME): Don't define if
        OBJECT_FORMAT_FLAT.
        * config/m68k/m68k.h (ASM_PREFERRED_EH_DATA_FORMAT): Do not use
        indirect references for -msep-data or -mid-shared-library.
        Do not use PC-relative code addresses either.
        * config/m68k/m68k.c (override_options): Restrict -fPIC error
        to -mpcrel.
        * config/m68k/uclinux.h (STARTFILE_SPEC): Define.  Use Scrt1.o
        for shared libraries and crt1.o for executables.  Use crti.o and
        crtbegin.o.
        (ENDFILE_SPEC): Use crtend.o and crtn.o.
        (LIB_SPEC): Suppress -Rlibc.gdb if -static-libc is given.
        Do not add -elf2flt or -shared-lib-id options here.
        (LINK_SPEC): Define.  Pass -elf2flt if no -elf2flt option is given.
        Pass -shared-lib-id if -mid-shared-library, taking the library
        identifier from -mshared-library-id if given, otherwise
        defaulting to 0.
        (EH_FRAME_IN_DATA_SECTION): Do not undefine.
        (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Likewise.
        (TARGET_OS_CPP_BUILTINS): Define __GXX_MERGED_TYPEINFO_NAMES=0
        and __GXX_TYPEINFO_EQUALITY_INLINE=0 if -mid-shared-library.
        (DRIVER_SELF_SPECS): Map unadorned PIC options to -msep-data.
        * config/m68k/t-uclinux (EXTRA_MULTILIB_PARTS): Add crtbegin.o
        and crtend.o.
        * config/m68k/lb1sf68.asm (PICCALL): Use an lea and pc-relative
        jump sequence for ISA A and ISA A+.
        (PICJUMP): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Base the port on the common
        and m68k GNU/Linux files rather than on the generic ELF ones.
        * config/m68k/uclinux.h (TARGET_VERSION): Override.
        (TARGET_OS_CPP_BUILTINS): Use LINUX_TARGET_OS_CPP_BUILTINS.

2007-01-18  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (LONG_DOUBLE_TYPE_SIZE): Make 64-bit on ColdFire.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.
        * config/m68k/netbsd-elf.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Undefine
        before redefining.
        * config/m68k/uclinux-oldabi.h (LONG_DOUBLE_TYPE_SIZE): Redefine to
        80 unconditionally.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Document m68k-uclinuxoldabi.
        * config.gcc (m68k-*-uclinuxoldabi): New configuration.
        * config/m68k/uclinux-oldabi.h: New file, copied from
        config/m68k/uclinux.h.

2007-01-18  Kaz Kojima  <kkojima@rr.iij4u.or.jp>

        * config/m32r/m32r-protos.h (m32r_expand_epilogue): Declare it.
        * config/m32r/m32r.c (m32r_setup_incoming_varargs): Use gen_frame_mem.
        (m32r_compute_frame_size): Use unsigned for regno.
        (m32r_reload_lr): Use gen_frame_mem.
        (pop): New.
        (m32r_output_function_epilogue): Don't output the function epilogue
        textually here.
        (m32r_expand_epilogue): New.
        (direct_return): Return false if the function has the interrupt
        attribute.
        (m32r_hard_regno_rename_ok): Remove code for the textual epilogue.
        * config/m32r/m32r.md (epilogue): New expander.
        (return_lr, return_rte): New insns.
        (return): Make it expander.
        (return_normal): New expander.

2007-01-18  Josh Conner  <jconner@apple.com>

        PR target/30485
        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Add
        support for UNLE, UNLT, UNGE, and UNGT.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (finalize_jump_threads): Do not call cleanup_cfg by hand.
        * tree-tailcall (add_virtual_phis): Likewise.
        (optimize_tail_call): Return TODOs.
        (execute_tail_calls): Return TODOs.
        * tree-ssa-ccp (execute_fold_all_builtins): Do cleanup_cfg via TODO.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Return if something
        changed.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
        Cleanup cfg using TODO.
        * tree-flow.h (cleanup_tree_cfg_loop): Update prototype.
        * passes.c (execute_function_todo): When cleanup did something, remove
        unused locals.
        * tree-cfg.c (pass_build_cfg): Add cleanup_cfg TODO.
        (make_edges): Don't cleanup_cfg.

2007-01-18  Uros Bizjak  <ubizjak@gmail.com>

        * reg-stack.c (subst_stack_regs_pat) [UNSPEC_SINCOS_COS,
        UNSPEC_XTRACT_FRACT]: Use generic code for instructions that
        operate on the top of stack.
        [UNSPEC_SINCOS_SIN, UNSPEC_XTRACT_EXP, UNSPEC_TAN]: Rewrite
        register handling of instructions that output to the second
        stack slot.
        [UNSPEC_TAN_ONE, UNSPEC_TAN_TAN]: Remove.
        (move_for_stack_reg): Special-case check for dead destination
        stack slot for constant load of 1.0 inside UNSPEC_TAN.

        * config/i386/i386.md (UNSPEC_TAN): New constant.
        (UNSPEC_TAN_ONE, UNSPEC_TAN_TAN): Remove.
        (fptanxf4_i387, fptan_extend<mode>xf4_i387): New patterns
        to correctly model move of constant 1.0 to top stack slot.
        (*tandf3_1, *tansf3_1, *tanxf3_1): Remove insn patterns.
        (unnamed peephole2 pattern): Remove corresponding peephole2
        pattern that optimizes tan insn and loading of constant 1.0.
        (tanxf2): Use fptanxf4_i387.
        (tan<mode>2): Rename from tansf2 and tandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fptan_extend<mode>xf4_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (sincos<mode>3): Use truncxf<mode>2_i387_noop for truncation.
        (fyl2x_extend<mode>xf3_i387): Use X87MODEF12 for operand 1.

2007-01-18  Dirk Mueller  <dmueller@suse.de>
            Richard Guenther <rguenther@suse.de>

        PR diagnostic/8268
        * doc/invoke.texi (Warray-bounds): Document -Warray-bounds.
        * common.opt (Warray-bounds): Add new warning option.
        * c-opts.c (c_common_handle_option): Define -Warray-bounds
        if -Wall is given.
        * Makefile.in: make tree-vrp.o depend on toplev.h
        * tree-vrp.c (vrp_finalize): Call check_array_refs if -Warray-bounds
        is enabled.
        (check_array_refs, check_array_bounds, check_array_ref): New.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-ccp.c (ccp_finalize): Return if something changed.
        (execute_ssa_ccp): Return flags conditionally.
        * tree-ssa-propagate.c (substitue_and_fold): Return if something was
        changed.
        * tree-ssa-propagate.h (substitute_and_fold): Update prototype.

2007-01-18  Steven Bosscher  <steven@gcc.gnu.org>

        * cfgcleanup.c (cleanup_cfg): Detect cfglayout mode and set
        the CLEANUP_CFGLAYOUT flag when in cfglayout mode.

        * Makefile.c (GTFILES): Add cfglayout.h.
        * gengtype.c (open_base_files): Likewise.
        * cfglayout.c (cfg_layout_function_footer,
        cfg_layout_function_header) Reindent to make gengtype happy.
        * cfglayout.h (cfg_layout_function_footer,
        cfg_layout_function_header): Add GTY(()) marker.

        * ifcvt.c (noce_try_sign_mask): Make sure INSN_B is non-null.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (write_automata): Include xstrerror output in the
        error message if writing the DFA description file fails.

2007-01-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/mips/mips-protos.h (mips_output_external): Make it
        return void.
        * config/mips/iris.h (TARGET_ASM_EXTERNAL_LIBCALL): Removed.
        * config/mips/mips.c (irix_output_external_libcall): Likewise.
        (extern_list): Likewise.
        (extern_head): Likewise.
        (TARGET_ASM_FILE_END): Likewise.
        (mips_file_end): Likewise.
        (mips_output_external): Rewritten.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genpreds.c (write_insn_preds_c): Only write out the function
        body for regclass_for_constraint if we have register constraints.

2007-01-17  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Use sourceware.org.
        * doc/install.texi (Testing): Use sourceware.org.
        (Binaries): Likewise.
        (Specific): Likewise.
        * doc/contrib.texi (Contributors): Use sourceware.org.

2007-01-17  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (AVR_HAVE_LPMX): New macro.
        (AVR_ENHANCED): Rename to ...
        (AVR_HAVE_MUL): ... new.
        (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (TARGET_CPU_CPP_BUILTINS): Use 'avr_have_mul_p' instead of
        'avr_enhanced_p' for "__AVR_ENHANCED__". Define "__AVR_HAVE_MUL__".
        * config/avr/avr.c (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (base_arch_s): Rename 'enhanced' to 'have_mul'.
        (avr_override_options): Use 'avr_have_mul_p' and 'have_mul' instead of
        'avr_enhanced_p' and 'enhanced'.
        (ashlhi3_out, ashrhi3_out, lshrhi3_out, avr_rtx_costs): Use
        AVR_HAVE_MUL instead of AVR_ENHANCED.
        * avr.md (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        (mulqi3, *mulqi3_enh, *mulqi3_call, mulqihi3, umulqihi3, mulhi3,
        *mulhi3_enh, *mulhi3_call, mulsi3, *mulsi3_call): Use AVR_HAVE_MUL
        instead of AVR_ENHANCED.
        (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        * libgcc.S: Use __AVR_HAVE_MUL__ instead of __AVR_ENHANCED__.
        (__tablejump__): Use __AVR_HAVE_LPMX__ instead of __AVR_ENHANCED__.

2007-01-17  Ian Lance Taylor  <iant@google.com>

        * vec.h (VEC_reserve_exact): Define.
        (vec_gc_p_reserve_exact): Declare.
        (vec_gc_o_reserve_exact): Declare.
        (vec_heap_p_reserve_exact): Declare.
        (vec_heap_o_reserve_exact): Declare.
        (VEC_OP (T,A,reserve_exact)): New static inline function, three
        versions.
        (VEC_OP (T,A,reserve)) [all versions]: Remove handling of
        negative parameter.
        (VEC_OP (T,A,alloc)) [all versions]: Call ...reserve_exact.
        (VEC_OP (T,A,copy)) [all versions]: Likewise.
        (VEC_OP (T,a,safe_grow)) [all versions]: Likewise.
        * vec.c (calculate_allocation): Add exact parameter.  Change all
        callers.
        (vec_gc_o_reserve_1): New static function, from vec_gc_o_reserve.
        (vec_gc_p_reserve, vec_gc_o_reserve): Call vec_gc_o_reserve_1.
        (vec_gc_p_reserve_exact, vec_gc_o_reserve_exact): New functions.
        (vec_heap_o_reserve_1): New static function, from vec_heap_o_reserve.
        (vec_heap_p_reserve, vec_heap_o_reserve): Call vec_heap_o_reserve_1.
        (vec_heap_p_reserve_exact): New function.
        (vec_heap_o_reserve_exact): New function.

2007-01-17  Jan Hubicka  <jh@suse.cz>

        * ipa-type-escape.c (look_for_casts): Revamp using handled_component_p.

2007-01-17  Eric Christopher  <echristo@apple.com>

        * config.gcc: Support core2 processor.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Instead of ggc_freeing
        the names, just unlink the chain so we don't crash on dangling pointers
        to dead SSA names.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_decide_inlining_incrementally): Kill.
        * tree-pass.h: Reorder to make IPA passes appear toegher.
        (pass_early_inline, pass_inline_parameters, pass_apply_inline): Declare.
        * cgraphunit.c (cgraph_finalize_function): Do not compute inling
        parameters, do not call early inliner.
        * ipa-inline.c: Update comments.  Include tree-flow.h
        (cgraph_decide_inlining): Do not compute inlining parameters.
        (cgraph_decide_inlining_incrementally): Return TODOs; assume to
        be called with function context set up.
        (pass_ipa_inline): Remove unreachable functions before pass.
        (cgraph_early_inlining): Simplify assuming to be called from the
        PM as local pass.
        (pass_early_inline): New pass.
        (cgraph_gate_ipa_early_inlining): New gate.
        (pass_ipa_early_inline): Turn into simple wrapper.
        (compute_inline_parameters): New function.
        (gate_inline_passes): New gate.
        (pass_inline_parameters): New pass.
        (apply_inline): Move here from tree-optimize.c
        (pass_apply_inline): New pass.
        * ipa.c (cgraph_remove_unreachable_nodes): Verify cgraph after
        transforming.
        * tree-inline.c (optimize_inline_calls): Return TODOs rather than
        doing them by hand.
        (tree_function_versioning): Do not allocate dummy struct function.
        * tree-inline.h (optimize_inline_calls): Update prototype.
        * tree-optimize.c (execute_fixup_cfg): Export.
        (pass_fixup_cfg): Remove
        (tree_rest_of_compilation): Do not apply inlines.
        * tree-flow.h (execute_fixup_cfg): Declare.
        * Makefile.in (gt-passes.c): New.
        * passes.c: Include gt-passes.h
        (init_optimization_passes): New passes.
        (nnodes, order): New static vars.
        (do_per_function_toporder): New function.
        (execute_one_pass): Dump current pass here.
        (execute_ipa_pass_list): Don't dump current pass here.

2007-01-16  Janis Johnson  <janis187@us.ibm.com>

        * config/dfp-bit.c (dfp_compare_op): Return separate value for NaN.
        (DFP_NE, DFP_LE, DFP_GE): Return false for NaN.

2007-01-16  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Build file for SOFT_FLOAT.
        (strong_alias): Define.
        (__gcc_qmul): Provide non-FMA for soft-float.
        (__gcc_qdiv): Same.
        (__gcc_qneg): New.
        (__gcc_qeq): New.
        (__gcc_qle): New.
        (__gcc_qge): New.
        (__gcc_qunord): New.
        (__gcc_stoq): New.
        (__gcc_dtoq): New.
        (__gcc_qtos): New.
        (__gcc_qtod): New.
        (__gcc_qtoi): New.
        (__gcc_qtou): New.
        (__gcc_itoq): New.
        (__gcc_utoq): New.
        (fmsub): New.
        * config/rs6000/rs6000.c (rs6000_init_libfuncs): Initialize
        soft-float functions.
        * config/rs6000/libgcc-ppc-glibc.ver: Version soft-float symbols.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Do not warn
        about long double soft float.

2007-01-16  Dorit Nuzman  <dorit@il.ibm.com>
            Tehila Meyzels  <tehila@il.ibm.com>

        * tree-vectorizer.h (is_pattern_stmt_p): New.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Fix
        formatting (tabs instead of spaces). Cleanup and clarify setting
        of STMT_VINFO_VECTYPE. Call is_pattern_stmt_p.
        * tree-vect-transform.c (vect_get_vec_def_for_operand): Fix typo.
        (vectorizable_type_demotion): Check that types are integral.
        (vectorizable_type_promotion): Likewise.
        (vectorizable_store): Fix typo.  Eliminate new-line at end of
        comments.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Remove invalidated
        cgraph edges too.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * ifcvt.c: Include vec.h, vecprim.h.
        (check_cond_move_block): New argument regs.
        Reorganize. Add registers used to regs.
        (cond_move_process_if_block): Use regs set above as
        loop bounds.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * config/darwin.h: Update copyright.
        (TARGET_OPTION_TRANSLATE_TABLE): Add umbrella.
        (LINK_COMMAND_SPEC): Add -u.
        (LINK_SPEC): Fix umbrella for above.

2007-01-15  Joseph S. Myers  <joseph@codesourcery.com>

        * config/soft-fp/op-common.h, config/soft-fp/op-4.h: Update from
        glibc CVS.

2007-01-15  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Don't mention jacks.
        * doc/install.texi (Testing): Don't mention jacks.
        (Configuration): Document --enable-java-maintainer-mode.  Move
        --with-java-home to libgcj-specific section.  Document
        --with-ecj-jar.
        (Prerequisites): Mention --enable-java-maintainer-mode, ecj1.

2007-01-15  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (DCE_TODOs): New.
        (propagate_necessity): Return if something changed.
        (eliminate_unnecessary_stmts): Likewise.
        (perform_tree_ssa_dce): Return TODO flags when needed.
        (pass_dce, pass_dce_loop, pass_cd_dce): Remove TODO flags.

2007-01-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fyl2xxf3_i387): Rename from fyl2x_xf3.
        (fyl2x_extend<mode>xf3_i387): New insn pattern.
        (log<mode>2): Rename from logsf2 and logdf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Extend operand 1
        to XFmode. Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (log10<mode>2): Ditto.
        (log2<mode>2): Ditto.
        (log1p<mode>2): Ditto.
        (logb<mode>2): Ditto.
        (fyl2xp1xf3_i387): Rename from fyl2xp1_xf3.
        (fyl2xp1_extend<mode>xf3_i387): New insn pattern.
        (*fxtractxf3_i387): Rename from *fxtractxf3.
        (fxtract_extend<mode>xf3_i387): New insn pattern.
        (ilogbsi2): Use match_dup 3, not match_operand:XF 3.
        * config/i386/i386.c (ix86_emit_i387_log1p): Use gen_fyl2xp1xf3_i387()
        and gen_fyl2xxf3_i387().

2007-01-14  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-unswitch.c (unswitch_loop): Do not call fix_loop_placement.
        * cfgloopmanip.c (fix_loop_placement): Made static.  Use
        get_loop_exit_edges.  Changed return type to bool.
        * cfgloop.h (fix_loop_placement): Declaration removed.

2007-01-14  Dorit Nuzman  <dorit@il.ibm.com>

        * param.h (MIN_VECT_LOOP_BOUND): New.
        * params.def (MIN_VECT_LOOP_BOUND): New.
        * tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Takes another
        argument - minimum threshold for number of iterations.
        * tree-vectorizer.h (slpeel_tree_peel_loop_to_edge): Add another
        argument to declaration.
        * tree-vect-analyze.c (vect_analyze_operations): Check value of
        MIN_VECT_LOOP_BOUND.
        * tree-vect-transform.c (vect_do_peeling_for_loop_bound): Call
        slpeel_tree_peel_loop_to_edge with additional argument.
        (vect_do_peeling_for_alignment): Likewise.
        * doc/invoke.texi (min-vect-loop-bound): Document new param option.

2007-01-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30413
        * config/i386/i386.c (print_operand) ['z']: Output 'b' for
        operands of size 1.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-dfa.c (remove_referenced_var): New function.
        * tree-ssa-live.c (remove_unused_locals): Walk referenced vars and
        prune referenced vars list too.
        * tree-flow.h (remove_referenced_var): Declare.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-eh.c (add_stmt_to_eh_region_fn): Do not add call_exprs
        separately.
        (remove_stmt_from_eh_region_fn): Do not remove call_exprs.
        (verify_eh_throw_stmt_node, verify_eh_throw_table_statements): Kill.
        * except.h (verify_eh_throw_table_statements): Kill prototype.
        * cfgexpand.c (expand_gimple_basic_block): Propagate Eh regions
        into call exrepssions.
        * tree-optimize.c (execute_free_cfg_annotatiosn): Do not call
        eh trhow verifier.
        * tree-cfg.c: Include pointer-set.h.
        (verify_node_sharing): Work on pointer set.
        (verify_eh_throw_stmt_node): New.
        (verify_stmts): Use pointers sets, verify throw_stmt.

2007-01-13  Zdenek Dvorak <dvorakz@suse.cz>

        * ipa-reference.c (analyze_function): Consider also addresses taken
        in phi nodes.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * c-typeck.c (null_pointer_constant_p): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (build_c_cast): Likewise.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * tree.h (force_fit_type_double): Remove unused final argument.
        * c-common.c (constant_expression_warning): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (convert_and_check): Likewise.
        (shorten_compare): Update call to force_fit_type_double.
        (c_common_truthvalue_conversion) <INTEGER_CST>: Use integer_zerop.
        * convert.c (convert_to_pointer): Update call to
        force_fit_type_double.
        * fold-const.c (force_fit_type_double): Remove overflowed_const
        argument.
        (int_const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_negate_const,
        fold_abs_const, fold_not_const): Remove the final argument from
        calls to force_fit_type_double.

2007-01-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * configure.ac: Set insn to "nop" for spu-*-* also.
        * configure: Regenerate.

2007-01-12  Olga Golovanevsky  <olga@il.ibm.com>

        * builtins.def : Add BUILT_IN_FREE.

2007-01-12  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/30443
        * tree-inline.c (tree_function_versioning): Do not optimize when
        cloning for inlining.

2007-01-12  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/loop.texi: Document recording of loop exits.
        * cfgloopmanip.c (loopify, duplicate_loop): Use alloc_loop.
        (update_single_exits_after_duplication,
        update_single_exit_for_duplicated_loop,
        update_single_exit_for_duplicated_loops): Removed.
        (duplicate_loop_to_header_edge): Do not call
        update_single_exits_after_duplication and
        update_single_exit_for_duplicated_loops.
        (loop_version): Do not update single_exit information.
        (fix_loop_structure): Use record_loop_exits instead of
        mark_single_exit_loops.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update
        the lists of loop exits.
        * cfghooks.c (redirect_edge_and_branch, redirect_edge_and_branch_force,
        split_edge, merge_blocks): Update the lists of loop exits.
        * modulo-sched.c (sms_schedule): Pass LOOPS_HAVE_RECORDED_EXITS to
        loop_optimizer_init.
        * loop-init.c (loop_optimizer_init): Call record_loop_exits instead
        of mark_single_exit_loops.
        (loop_optimizer_finalize): Call release_recorded_exits.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Pass
        LOOPS_HAVE_RECORDED_EXITS to loop_optimizer_init.
        * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg): Do not
        update single exit information.
        * lambda-code.c (perfect_nestify): Ditto.
        * cfgloop.c (flow_loop_free): Destroy the list of exits of the loop.
        (mark_single_exit_loops): Removed.
        (alloc_loop, loop_exit_hash, loop_exit_eq, loop_exit_free,
        get_exit_descriptions, rescan_loop_exit, record_loop_exits,
        dump_recorded_exit, dump_recorded_exits, release_recorded_exits): New
        functions.
        (get_loop_exit_edges, single_exit): Use recorded exit lists.
        (add_bb_to_loop, remove_bb_from_loops): Update the lists of loop exits.
        (verify_loop_structure): Verify consistency of the exit lists.
        (flow_loops_find): Use alloc_loop.  Initialize exits hash.
        (set_single_exit): Removed.
        * cfgloop.h (struct loop_exit): New function.
        (struct loop): single_exit_ field replaced by exits field.
        (LOOPS_HAVE_MARKED_SINGLE_EXITS): Replaced by LOOPS_HAVE_RECORDED_EXITS.
        (struct loops): Added exits hash.
        (mark_single_exit_loops, set_single_exit): Declaration removed.
        (release_recorded_exits, record_loop_exits, rescan_loop_exit): Declare.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Avoid use of @headitem.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * cse.c (cse_insn): Move HAVE_CC0 code after declarations.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Fix m68k-*-* anchor and add m68k-*-* to the
        list of targets.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document -mno-bitfield, -mno-rtd and -mno-short.
        * config/m68k/m68k.opt: Resort options.
        (mbitfield, mrtd, mshort): Remove RejectNegative properties.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document the macros that are defined by
        m68k's -mtune and -mhard-float options.
        * config/m68k/m68k-protos.h (m68k_cpp_cpu_ident) Declare.
        (m68k_cpp_cpu_family): Likewise.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Add a full set
        of __ucfv*__ macros.  Define __mcffpu__ if generating code for
        ColdFire FPUs.  Define __mcf_cpu_* and __mcf_family_* macros.
        * config/m68k/m68k.c (m68k_cpp_cpu_ident): New function.
        (m68k_cpp_cpu_family): Likewise.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Treat all mc68*
        macros besides mc68000 as tuning macros.  Use a switch statement
        to set them and mcpu32.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h: Use TARGET_68040 instead of TARGET_68040_ONLY.
        (TARGET_68040_ONLY): Rename to...
        (TARGET_68040): ...this.
        * config/m68k/m68k.c: Use TARGET_68040 instead of TARGET_68040_ONLY.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m680[012]0-*-*, m68k*-*-*): Set m68k_cpu_ident to
        the -mcpu= argument associated with the --with-cpu setting.
        Define M68K_DEFAULT_TUNE to the default -mtune= option,
        if different from the one implied by the -mcpu setting.
        Accept --with-cpu=FOO if FOO is listed in m68k-devices.def,
        using mcpu=FOO as the default CPU option.  Set target_cpu_default2.
        * doc/invoke.texi: Mention ColdFire in the introduction to the
        m68k options.  Document the new -march, -mcpu, -mtune, -mdiv,
        -mno-div and -mhard-float options.  Make -m68881 a synonym for
        -mhard-float.  Document the previously-undocumented -m5206e,
        -m528x, -m5307 and -m5407 options.  Tweak the existing option
        documentation for consistency.
        * doc/install.texi: Mention new --with-cpu arguments.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Only use the
        default CPU if neither -mcpu nor -march are specified.
        (ASM_CPU_SPEC): Pass down -mcpu and -march options.
        (TARGET_CPU_CPP_BUILTINS): Set __mcfisa*__ macros from
        TARGET_ISA*.  Set the legacy __mcf*__ cpu macros in the same way,
        using m68k_tune to decide between families that implement the
        same ISA.  Use m68k_tune to set __mcfv4e__.
        (FL_BITFIELD, FL_68881, FL_COLDFIRE, FL_CF_HWDIV, FL_CF_MAC)
        (FL_CF_EMAC, FL_CF_EMAC_B, FL_CF_USP, FL_CF_FPU, FL_ISA_68000)
        (FL_ISA_68010, FL_ISA_68020, FL_ISA_68040, FL_ISA_A, FL_ISA_B)
        (FL_ISA_C, FL_ISA_MMU): New macros.
        (MASK_COLDFIRE): Delete.
        (TARGET_68010, TARGET_68020, TARGET_68040_ONLY, TARGET_COLDFIRE)
        (TARGET_ISAB): Redefine in terms of m68k_cpu_flags.
        (TARGET_68881, TARGET_COLDFIRE_FPU): Redefine in terms of m68k_fpu.
        (TARGET_HARD_FLOAT): Do not define here.
        (TARGET_ISAAPLUS, TARGET_ISAC): New macros.
        (TUNE_68000): New macro.
        (TUNE_68000_10): Redefine in terms of TUNE_68000 and TUNE_68010.
        (TUNE_68010, TUNE_68030, TUNE_68040, TUNE_68060, TUNE_CPU32)
        (TUNE_CFV2): Redefine in terms of m68k_tune.
        (uarch_type, target_device, fpu_type): New enums.
        (m68k_cpu, m68k_tune, m68k_fpu, m68k_cpu_flags): Declare.
        * config/m68k/m68k.c (TARGET_DEFAULT): Remove MASK_68881.
        (FL_FOR_isa_00, FL_FOR_isa_10, FL_FOR_isa_20, FL_FOR_isa_40)
        (FL_FOR_isa_cpu32, FL_FOR_isa_a, FL_FOR_isa_aplus, FL_FOR_isa_b)
        (FL_FOR_isa_c): New macros.
        (m68k_isa): New enum.
        (m68k_target_selection): New structure.
        (all_devices, all_isas, all_microarchs): New tables.
        (m68k_cpu_entry, m68k_arch_entry, m68k_tune_entry, m68k_cpu)
        (m68k_tune, m68k_fpu, m68k_cpu_flags): New variables.
        (MASK_ALL_CPU_BITS): Delete.
        (m68k_find_selection): New function.
        (m68k_handle_option): Handle -mcpu=, -march= and -mtune=.
        Map the legacy target options to a combination of the new ones.
        (override_options): Set m68k_cpu, m68k_tune, m68k_fpu and
        m68k_cpu_flags.  Handle M68K_DEFAULT_TUNE.  Use m68k_cpu_flags
        to derive default MASK_BITFIELD, MASK_CF_HWDIV and MASK_HARD_FLOAT
        settings.
        * config/m68k/m68k.opt (m5200, m5206e, m528x, m5307, m5407, mcfv4e)
        (m68010, m68020, m68020-40, m68020-60, m68030, m68040): Remove Mask
        properties.
        (m68881, msoft-float): Change mask from 68881 to HARD_FLOAT.
        (march=, mcpu=, mdiv, mhard-float, mtune=): New options.
        * config/m68k/m68k-devices.def: New file.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
        (SUBTARGET_EXTRA_SPECS): New macros.
        * config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
        use %(asm_cpu_spec) instead.
        * config/m68k/m68k-none.h (ASM_SPEC): Likewise.
        * config/m68k/openbsd.h (ASM_SPEC): Likewise.
        * config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
        (EXTRA_SPECS): Rename to...
        (SUBTARGET_EXTRA_SPECS): ...this.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinux*, m68k-*-linux*, m68k-*-rtems*): Set default_m68k_cpu
        to the configuration's default CPU.
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*): Likewise.
        Remove default masks.
        (m680[012]0-*-*): Set the default with_cpu to the first part of
        the target name.
        (m68k*-*-*): Set the default with_cpu to m$default_m68k_cpu.
        (m68k*-*-linux): Extend the --with-cpu handling to...
        (m680[012]0-*-*, m68k*-*-*): ...these configurations.  Allow m68000
        and m68010.  Don't set target_cpu_default2.
        * doc/install.texi: Document --with-cpu for m68k.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Define.
        * config/m68k/m68k-none.h (TARGET_CPU_DEFAULT, M68K_CPU_m68k)
        (M68K_CPU_m68000, M68K_CPU_m68010, M68K_CPU_m68020, M68K_CPU_m68030)
        (M68K_CPU_m68040, M68K_CPU_m68302, M68K_CPU_m68332, TARGET_DEFAULT)
        (ASM_CPU_DEFAULT_SPEC, CC1_CPU_DEFAULT_SPEC): Delete.
        (ASM_SPEC): Remove use of %(asm_cpu_default).
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS, MULTILIB_DEFAULTS): Delete.
        * config/m68k/linux.h (TARGET_DEFAULT): Delete.
        (CPP_SPEC): Merge definitions.  Do not handle __HAVE_68881__ here.
        * config/m68k/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Define
        __HAVE_FPU__ if TARGET_HARD_FLOAT.
        (TARGET_DEFAULT): Delete.
        (EXTRA_SPECS): Delete cpp_cpu_default_spec, cpp_cpu_spec,
        cpp_fpu_spec, asm_default_spec and netbsd_cpp_spec.
        (CPP_CPU_SPEC): Delete.
        (TARGET_VERSION): Merge definitions, using TARGET_68010 to pick
        the appropriate string.
        (CPP_CPU_DEFAULT_SPEC, ASM_DEFAULT_SPEC, CPP_FPU_SPEC): Delete.
        (CPP_SPEC): Define to NETBSD_CPP_SPEC.
        (ASM_SPEC): Don't use %(asm_default_spec).
        * config/m68k/m68k.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
        TARGET_DEFAULT and add MASK_68881.
        * config/m68k/m68k.md: Remove mention of TARGET_DEFAULT from comments.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68010-*-netbsdelf*): Add MASK_68010.
        (m68k*-*-netbsdelf*, m68k*-*-openbsd*, m68k*-linux*): Add
        MASK_68010 alongside MASK_68020.
        * doc/invoke.texi: Document -m68010.
        * config/m68k/m68k.opt (m68010): New.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define mc68010
        if TUNE_68010.
        (TUNE_68010): New macro.
        * config/m68k/m68k-none.h (M68K_CPU_m68k, M68K_CPU_m68010)
        (M68K_CPU_m68020, M68K_CPU_m68030, M68K_CPU_m68040)
        (M68K_CPU_m68332): Add MASK_68010.
        * config/m68k/linux.h (TARGET_DEFAULT): Add MASK_68010 to
        fallback definition.
        * config/m68k/netbsd-elf.h (CPP_CPU_SPEC): Remove now-redundant
        defines.
        * config/m68k/m68k.c (MASK_ALL_CPU_BITS): Add MASK_68010.
        (m68k_handle_option): Handle OPT_m68010.  Add MASK_68010
        to all entries that use MASK_68020.
        (output_move_simode_const, output_move_himode, output_move_qimode)
        (output_move_stricthi, output_move_strictqi): Use TARGET_68010
        instead of TARGET_68020 to select clr behavior.  Remove comment
        about there being no TARGET_68010.
        * config/m68k/m68k.md: Likewise throughout.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TARGET_ISAB): New macro.
        * config/m68k/m68k.c: Use TARGET_ISAB rather than TARGET_CFV4.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (LEGITIMATE_INDEX_P, LEGITIMIZE_ADDRESS): Use
        TARGET_COLDFIRE_FPU instead of TARGET_CFV4E.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TUNE_68040_60): New macro.
        * config/m68k/m68k.c (standard_68881_constant_p): Use it.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Use TUNE_68030
        instead of TARGET_68030, TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060 and TUNE_CPU32 instead of
        TARGET_CPU32.
        (TARGET_CPU32): Rename to...
        (TUNE_CPU32): ...this.
        (TUNE_68000_10, TUNE_68030, TUNE_68040, TUNE_68060)
        (TUNE_CFV2): New macros.
        * config/m68k/netbsd-elf.h (LONG_DOUBLE_TYPE_SIZE): Simplify;
        remove conditions that are implied by TARGET_68020.
        * config/m68k/m68k.c (m68k_output_function_prologue): Use TUNE_68040
        instead of TARGET_68040 and TUNE_CPU32 instead of TARGET_CPU32.
        (m68k_output_function_epilogue): Likewise.
        (m68k_rtx_costs): Likewise.  Use TUNE_68060 instead of TARGET_68060
        and TUNE_CFV2 instead of TARGET_5200.  Use TUNE_68000_10 instead of
        "!TARGET_68020 && !TARGET_COLDFIRE" to choose between 68000 and
        non-68000 timings.  Refactor multiplication and division costs.
        (output_addsi3): Use TUNE_68040 instead of TARGET_68040 and
        TUNE_CPU32 instead of TARGET_CPU32.
        (standard_68881_constant_p): Use TUNE_68040 instead of TARGET_68040
        and TUNE_68060 instead of TARGET_68060.
        * config/m68k/m68k.md: Use TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060, and TUNE_CPU32 instead of
        TARGET_CPU32.
        (movsi_const0): Use TUNE_68000_10 rather than "!TARGET_68020
        && !TARGET_COLDFIRE" to choose between moveq and clr.
        Likewise in the unnamed movsf pattern.
        (ashlsi_17_24, lshrsi_17_24): Guard with TUNE_68000_10 rather than
        "!TARGET_68020 && !TARGET_COLDFIRE".  Likewise the unnamed
        ashiftrt pattern.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Increase amount
        of tabbing before backslashes.

2007-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa-linux.h (ASM_OUTPUT_INTERNAL_LABEL): Undefine.
        * pa.h (ASM_OUTPUT_LABEL): Output colon when using GAS.
        (ASM_OUTPUT_INTERNAL_LABEL): Define.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (extract_cond_operands): Split from
        find_interesting_uses_cond.
        (find_interesting_uses_cond): Use extract_cond_operands.
        (rewrite_use_compare): Use extract_cond_operands and
        force_gimple_operand_bsi.  Do not call update_stmt.
        (determine_use_iv_cost_condition): Use extract_cond_operands.
        Return cheaper of using original bound and changing the exit bound.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/29516
        * tree-ssa-address.c (tree_mem_ref_addr, add_to_parts,
        most_expensive_mult_to_index, addr_to_parts,
        create_mem_ref, maybe_fold_tmr): Make the type of
        fields of TARGET_MEM_REF sizetype.
        (move_fixed_address_to_symbol, move_pointer_to_base):
        New functions.
        * tree.def (TARGET_MEM_REF): Add comment on types of
        the operands.

2007-01-11  Joseph Myers  <joseph@codesourcery.com>

        * c-common.c (vector_types_convertible_p): Treat opaque types as
        always convertible if they have the same size, but not otherwise.

2007-01-11  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (struct noce_if_info): Add comments to the fields.
        Remove the b_unconditional field.
        (noce_try_sign_mask): Do not look at b_unconditional.
        (noce_process_if_block): Do not use merge_if_blocks.  Update
        the CFG here.  Do not set b_unconditional.
        (cond_move_process_if_block): Likewise.
        (find_cond_trap): Likewise.
        (check_cond_move_block): Require simple jump insns at the end
        of the basic block.

2007-01-11  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/1046
        * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
        when alias info is not ready.
        (pass_tail_recursion): Do not require aliasing.
        * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
        * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
        * tree-ssa-copy.c (pass_copy_prop): Likewise.
        * tree-ssa-forwprop.c (pass_forwprop): Likewise.
        * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
        * passes.c (init_optimization_passes): Execute rename_ssa_copies,
        ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
        before inlining.
        * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
        When aliasing is not build, mark statement as volatile.

2007-01-11  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/15185, PR preprocessor/20989:
        * doc/cppopts.texi <-MT>: Update description of algorithm for
        computing default target.
        <-M, -MD>: Reword "basename" text.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (expand_builtin_pow, expand_builtin_powi,
        fold_builtin_cabs, fold_builtin_sqrt, fold_builtin_trunc,
        fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
        fold_builtin_int_int_roundingfn, fold_builtin_bitop,
        fold_builtin_bswap, real_constp, fold_builtin_pow,
        fold_builtin_powi, fold_builtin_signbit, fold_builtin_copysign,
        do_mpfr_arg1, do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Replace
        uses of the macro TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        * convert.c (convert_to_pointer): Likewise.
        * expr.c (highest_pow2_factor, expand_expr_real_1): Likewise.
        * fold-const.c (force_fit_type, fold_negate_expr, int_const_binop,
        const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real,
        fold_convert_const_real_from_real, sign_bit_p,
        optimize_minmax_comparison, extract_muldiv_1, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_comparison,
        fold_binary, multiple_of_p, tree_Expr_non_zero_p,
        fold_negate_const, fold_abs_const, fold_not_const): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * stor-layout.c (place_field, layout_type): Likewise.
        * tree-chrec.c (keep_cast): Likewise.
        * tree.c (build_vector, build_real, build_real_from_int_cst,
        build_complex): Likewise.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
        treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.

2007-01-11  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (strict1_warn): Rename to strict_warn.
        (WERROR, --enable-werror, symlink hacks, stage1_cflags,
        cc_set_by_configure, quoted_cc_set_by_configure,
        stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
        all_boot_languages, all_stagestuff): Remove.
        (target_list): Remove bootstrap targets.
        * Makefile.in (quickstrap): Unconditionally make a synonym of all.
        (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
        REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
        SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
        VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
        STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
        stage1_copy, stage2_build, stage2_copy, stageprofile_build,
        stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
        stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
        bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
        bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
        unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
        restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
        cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
        *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
        stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
        stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
        risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
        (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
        (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
        (mostlyclean): Adjust.
        (clean, distclean): Don't mention bootstrap stuff.
        * configure: Regenerate.
        * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
        java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
        treelang/config-lang.in (stagestuff): Remove.
        * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
        stageprofile, stagefeedback, stagestuff): Remove mention.

2007-01-11  Nick Clifton  <nickc@redhat.com>

        * config/mcore/predicates.md (mcore_general_movesrc_operand):
        Accept CONSTs.
        (mcore_general_movdst_operand): Do not accept CONST_INTs.
        (mcore_arith_K_S_operand): Run the test for the S constraint not
        the test for the M constraint.
        (mcore_addsub_operand): Do not accept integer values that are
        larger than 32 bits.
        * config/mcore/mcore.md: Remove unused constraints from split.
        (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
        (addsi3): Likewise.
        (allocate_stack): Likewise.
        * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
        operands to 32 bits.
        (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
        INTVAL.
        (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
        mcore_const_ok_for_inline, mcore_const_trick_uses_not,
        try_constant_tricks, mcore_num_ones, mcore_num_zeros,
        mcore_output_bclri, mcore_output_andn, output_inline_const,
        mcore_output_move, mcore_output_movedouble): Likewise.
        (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
        (output_inline_const): Likewise.
        (output_inline_const): Fix format strings used in sprintf
        statements.
        * config/mcore/mcore-protos.h: Update prototypes for changed
        functions in mcore.c.
        * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
        HOST_WIDE_INT and not int.
        (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
        CONST_OK_FOR_N): Likewise.
        (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
        (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
        an INTVAL.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (remove_range_assertions): Release defs.
        * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
        * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.

2007-01-10  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
        * config/arm/arm.md (mulsi3subsi): New insn.

2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
        (tree_transform_and_unroll_loop): New.
        * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
        Declare.

2007-01-10  Robert Kennedy <jimbob@google.com>

        * fold-const.c (fold_comparison): Fold comparisons like (x *
        1000 < 0) to (x < 0).

2007-01-10  Ian Lance Taylor  <iant@google.com>

        * tree-pretty-print.c (dump_generic_node): Print parentheses when
        operands have the same priority.

2007-01-10  Tom Tromey  <tromey@redhat.com>

        * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
        (fold_binary): Likewise.
        * langhooks.c (lhd_can_use_bit_fields_p): Removed.
        * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
        (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
        (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
        * langhooks.h (struct lang_hooks): Removed field
        'can_use_bit_fields_p'.

2007-01-10  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.

2007-01-10  Razya Ladelsky  <razya@il.ibm.com>

        * function.c (get_last_funcdef_no): New function.
        * function.h (get_last_funcdef_no): Declare.
        * tree-inline.c (initialize_cfun): Add initialization.
        (tree_function_versioning): Cleanup.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
        PHIs.

2007-01-10  Sa Liu  <saliu@de.ibm.com>
            Ben Elliston  <bje@au.ibm.com>

        * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
        for SAVE_NONLOCAL and Pmode for any other save level.
        * spu-protos.h (spu_restore_stack_block): Declare.
        * spu.md (save_stack_block): Remove.
        (restore_stack_block): Call spu_restore_stack_block.
        * spu.c (spu_restore_stack_block): New function.
        (spu_expand_epilogue): Remove old comment.

2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/30322
        * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
        (cand_value_at): Return the value as aff_tree.
        (may_eliminate_iv): Convert the bound from aff_tree to tree.
        * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
        aff_combination_mult): New functions.
        (aff_combination_add): Use aff_combination_add_cst.
        (aff_combination_convert): Allow conversions to a wider type.
        (tree_to_aff_combination): Handle BIT_NOT_EXPR.
        * tree-affine.h (aff_combination_mult): Declare.

2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/tm.texi: Update documentation to reflect reality of exec
        and start file search behaviours. Update copyright year.
        * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
        header file directories.

2007-01-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
        (*cosxf2): Rename to cosxf2_i387.
        (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
        using X87MODEF12 mode macro. Rename patterns to
        *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
        for SSE math.
        (*cosdf2, *cossf2): Ditto.
        (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
        to match extended input operands.
        (sincos<mode>3): New expander.
        (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
        insn patterns and corresponding splitters.

2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
        (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.

2007-01-09  Nicolas Pitre  <nico@cam.org>

        PR target/30173
        * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * target.h (struct gcc_target): New field library_rtti_comdat.
        * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
        (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Optimize Options): Correct description of -O0.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (force_fit_type_double): Export.
        (force_fit_type): Remove.
        * fold-const.c (force_fit_type_double): New function.
        (force_fit_type): Remove.
        (int_const_binop): Use it.
        (fold_convert_const_int_from_int): Likewise.
        (fold_convert_const_int_from_real): Likewise.
        (fold_div_compare): Likewise.
        (fold_sign_changed_comparison): Likewise.
        (fold_unary): Likewise.
        (fold_negate_const): Likewise.
        (fold_abs_const): Likewise.
        (fold_not_const): Likewise.
        * c-common.c (shorten_compare): Use force_fit_type_double.
        * convert.c (convert_to_pointer): Likewise.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (build_int_cst_wide_type): Export.
        * tree.c (build_int_cst_wide_type): New function.
        (build_int_cst_wide): Fix comment.
        * builtins.c (fold_builtin_object_size): Use build_int_cst
        to build -1 or 0 of the correct type.  Use fit_double_type
        to check for overflow.
        * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
        to build the mask.
        (decode_field_reference): Likewise.
        (all_ones_mask_p): Likewise.
        (native_interpret_int): Use build_int_cst_wide_type.
        (fold_binary): Use build_int_cst_type to build an all-ones
        value.
        * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.

2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/pa/t-pa64 (libgcc_stub.a): Use $(T).

2007-01-09  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (STATS_OPTION): New option.
        (stats_flag): New flag.
        (gen_automata_option): Handle it.
        (initiate_automaton_gen): Ditto.
        (write_automata): Output statistics only if stats_flag is
        set. Likewise, output time statistics only if time_flag is set.
        * doc/md.texi (Processor pipeline description): Document new flag.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
        * tree.c (build_int_cst_type): Likewise.
        (size_in_bytes): Don't call force_fit_type on the result.
        (int_fits_type_p): Use fit_double_type.
        * fold-const.c (fit_double_type): New function.
        (force_fit_type): Use it.
        * tree.h (fit_double_type): Export.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-vectorizer.c (gate_increase_alignment): Fix return type.
        * ipa.c (function_and_variable_visibility): Fix return type.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
        of offset to build the index.
        * tree-pretty-print.c (dump_generic_node): Don't build negated
        const just for printing.
        * c-pretty-print.c (pp_c_integer_constant): Likewise.
        * builtins.c (fold_builtin_int_roundingfn): Check if result
        fits the type by using force_fit_type and comparing the result.
        * predict.c (predict_loops): Use compare_tree_int for comparison.
        * tree.c (build_int_cst): Fall back to integer_type_node for
        NULL_TREE type.
        (build_int_cst_wide): Assert type is non-null.

2007-01-08  Roberto Costa  <roberto.costa@st.com>

        * tree-vrp.c (extract_range_from_cond_expr): New.
        (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
        * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
        as expressions.
        (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
        * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
        used as expressions.
        * tree-object-size.c (cond_expr_object_size): New.
        (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-forwprop.c (forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_va): Release defs of propagated
        statement.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/23603
        * tree-vrp.c (set_value_range_to_truthvalue): New function.
        (extract_range_from_binary): Fall back to truthvalue instead of
        varying for TRUTH_*_EXPR.
        (extract_range_from_comparison): Fall back to truthvalue instead of
        varying.
        (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
        if all visited PHI values were constant.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
        (cgraph_analyze_function): break out from ...
        (cgraph_finalize_compilation_unit): ... here.
        (cgraph_expand_function): Remove forgoten commented out line.
        (cgraph_optimize): Analyze functions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-pas.h (TODO_remove_function): New flag.
        (TODO_update*): Renumber.
        (pass_ipa_increase_alignment,
        pass_ipa_function_and_variable_visibility): New passes.
        * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
        (cgraph_function_and_variable_visibility): Move to ipa.c
        (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
        cgraph_increase_alignment.
        * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
        (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
        calling tree-inline.
        (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
        (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
        * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
        (gate_increase_alignment): New function.
        (pass_ipa_increase_alignment): New pass.
        * ipa.c: Inline tree-pass.h and timevar.h
        (function_and_variable_visibility): Move here from cgraphunit.c
        * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
        * passes.c (init_optimization_passes): Add the two new passes.
        (execute_todo): Handle cgraph_remove_functions.

2007-01-08  Nick Clifton  <nickc@redhat.com>

        * config/frv/predicates.md (reg_or_0_operand): Accept
        CONST_DOUBLEs.

2007-01-08  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/rtems.h, config/bfin/t-rtems: New.
        * config.gcc: Add bfin*-rtems*.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        * c.opt: Add -flax-vector-conversions.
        * c-typeck.c (convert_for_assignment): Pass flag to
        vector_types_convertible_p to allow emission of note.
        (digest_init): Likewise.
        * c-opts.c: Handle -flax-vector-conversions.
        * c-common.c (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Unless -flax-vector conversions
        has been passed, disallow conversions between vectors with
        differing numbers of subparts and/or element types.  If such
        a conversion is disallowed, possibly emit a note on the first
        occasion only to inform the user of -flax-vector-conversions.
        The new last argument specifies this.
        * c-common.h (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Add extra argument.
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
        char_type_node for V*QI type vectors.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
        Update to satisfy new typechecking rules.
        * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
        C and C++ variants.
        * doc/invoke.texi (C Dialect Options): Document
        -flax-vector-conversions.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        PR tree-optimization/29877
        * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
        a register variable on the RHS to not be replaceable.

2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
        * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
        * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
        const_simm15, const_pow2, const_npow2): Added.
        * config/score/misc.md (insv, extv, extzv, movmemsi,
        move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
        * config/score/score.c (score_address_cost, score_select_cc_mode):
        Added.
        Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
        Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
        Update score_print_operand.
        * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
        Adjust register allocate order and update some macro define.
        * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
        mdx_block_move_straight, mdx_block_move_loop_head,
        mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
        mdx_block_move): Added.
        (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
        mdp_limm): Updated and fix some bug and typo.
        * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
        (movsf, movdf, doloop_end): Added.

2007-01-08  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
        config/arm/thumb2.md: Fix comment typos.
        * doc/extend.texi: Fix a typo.

2007-01-07  Eric Christopher  <echristo@apple.com>

        * configure.ac: Check for __stack_chk_fail for darwin.
        * configure: Regenerate.

2007-01-07  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (extract_range_from_assert): CSE calls to
        compare_values where possible.
        (extract_range_from_unary_expr): Likewise.

2007-01-07  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
        * config/avr/avr.c (call_insn_operand): Delete function.
        * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
        instead of register number. Use predicates.
        * config/avr/predicates.md (const0_operand, reg_or_0_operand,
        call_insn_operand): Add.

2007-01-06  Jan Hubicka  <jh@suse.cz>

        * tree-pass.h (pass_build_cgraph_edges): Declare.
        * cgraphunit.c (record_refernece): Move to cgraphbuild.c
        (visited_nodes): Remove.
        (cgraph_create_edges): Move to cgraphbuild.c; rename to
        build_cgrpah_edges; make visited_nodes local.
        (cgraph_process_new_functions): DO not call initialize_inline_failed.
        (record_references_in_initializer): Move to cgraphbuild.c
        (initialize_inline_failed, rebuild_cgraph_edges,
        pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
        (verify_cgraph_node): Make visited_nodes local.
        (cgraph_analyze_function): Do not call cgraph_create_edges and
        initialize_inline_failed.
        (cgraph_expand_function): Do not call cgraph_lower_function;
        assert that function is already lowered.
        * Makefile.in (cgraphbuild.o): New.
        * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
        at the end of lowering passes.

2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (cond_move_convert_if_block): New function, code
        factored out from...
        (cond_move_process_if_block): ...here.  Call the new function
        on the THEN and ELSE blocks.
        (merge_if_block): Do not copy global_live_at_end, merge_blocks
        already takes care of this.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/19978
        * tree.h (TREE_OVERFLOW_P): New.
        * c-typeck.c (parser_build_unary_op): Warn only if result
        overflowed and operands did not.
        (parser_build_binary_op): Likewise.
        (convert_for_assignment): Remove redundant overflow_warning.
        * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-typeck.c (store_init_value): Split over two lines to follow
        the GNU coding style.

2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>

        * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
        __GXX_EXPERIMENTAL_CXX0X__.
        * doc/cpp.texi: Same.

2007-01-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27826
        * tree.c (get_narrower): Do not construct COMPONENT_REFs
        with mismatched types.  Instead explicitly build a
        conversion NOP_EXPR.

2007-01-05  Ian Lance Taylor  <iant@google.com>

        * c-common.c (decl_with_nonnull_addr_p): New function.
        (c_common_truthvalue_conversion): Call it.
        * c-typeck.c (build_binary_op): Likewise.
        * c-common.h (decl_with_nonnull_addr_p): Declare.

2007-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR c/30360
        * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
        denom against 0.0.

2007-01-05  Joel Brobecker  <brobecker@adacore.com>

        * doc/install.texi (Final install): Document the fact that
        the GNAT runtime should not be stripped.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (fold_marked_statements): Update operand caches
        and EH after folding

2007-01-04  Ian Lance Taylor  <iant@google.com>

        * c-common.c (check_function_nonnull): Whitespace fix.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
        comitted older version of patch.
        (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
        function, celanup cfg and collect garbage.

2007-01-04  Mike Stump  <mrs@apple.com>

        * Makefile.in (mostlyclean): Don't remove libgcc anymore.
        (clean): Likewise.

2007-01-04  Eric Christopher  <echristo@apple.com>

        * libgcc2.c (__bswapsi2): Use SItype.
        (__bswapdi2): Use DItype.
        * libgcc2.h: Update for above.

2007-01-04  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
        mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
        mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
        umulsidi3, umulsidi3adddi, smulsi3_highpart,
        umulsi3_highpart): Make conditional on !arm_arch6.
        (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
        mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
        mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
        umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
        umulsi3_highpart_v6): New insns.

2007-01-04  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_convert): When casting an expression to void,
        fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
        have a type.  Instead of attempting to build a NOP_EXPR, return
        these "special" trees directly.

2007-01-04  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
        MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
        rs6000_cost->fp not 0 as adjustment for outer NEG.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_release_function_body): New function.
        (cgraph_remove_node): Use it.
        * cgraph.h (cgraph_release_function_body): Declare.
        * cgraphunit.c (cgraph_expand_function): Use it.
        * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
        * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
        is initialized and while compilation of other function is running.
        * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
        statement CFG annotations from here to ...
        * tree-cfg.c (delete_tree_cfg_annotations): ... here.

2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.h (enum li_flags): Make the constants powers of two.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
        set.
        (fold_marked_statements): New function.
        (optimize_inline_calls, tree_function_versioning): Fold new statements.
        * tree-inline.h (copy_body_data): Add statements_to_fold.

2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>

        * config.gcc: Mention libgcc/config.host.
        * Makefile.in: Update comments mentioning libgcc.
        (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
        (all.cross, start.encap, rest.encap, rest.cross): Update
        dependencies for libgcc move.
        (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
        (clean-target, clean-target-libgcc): Delete.
        (srcdirify, GCC_EXTRA_PARTS): New macros.
        (libgcc-support, libgcc.mvars): New rules.
        (distclean): Remove mention of mklibgcc.
        (install): Don't reference INSTALL_LIBGCC.
        (install-common): Don't reference EXTRA_PARTS.
        (install-libgcc, install-multilib): Delete rules.
        * mklibgcc.in: Delete file.
        * doc/configfiles.texi: Don't mention mklibgcc.

        * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
        * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
        (mklibgcc, ldblspecs): Likewise.

        * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
        (posixpre.def): Use $(T).
        (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
        (SHLIB_SRC, SHLIB_INSTALL): Delete.
        (SHLIB_LINK): Make dummy.
        * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.

        * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.

        * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
        * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
        config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
        config/rs6000/t-newas, config/sparc/t-elf: Likewise.

        * configure.ac (all_outputs): Remove mklibgcc.
        * configure: Regenerated.

2007-01-03  Josh Conner  <jconner@apple.com>

        PR middle-end/29683
        * calls.c (compute_argument_addresses): Set stack and stack_slot
        for partial args, too.
        (store_one_arg): Use locate.size.constant for the size when
        generating a save_area.

2007-01-03  Robert Kennedy <jimbob@google.com>

        * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
        whose definitions are deleted due to basic block merging.

2007-01-03  Paul Brook  <paul@codesourcery.com>

        PR target/16634
        * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
        functions.
        (use_return_insn): Return 0 for Thumb interrupt functions.
        (print_multi_reg): Add rfe argument for IRQ returns.
        (arm_output_epilogue): Pop interrupt return address directly into PC.
        (arm_expand_prologue): Only adjust IRQ return address in Arm mode.

2007-01-03  Paul Brook  <paul@codesourcery.com>

        Merge from sourcerygxx-4_1.
        * config/arm/thumb2.md: New file.
        * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
        Thumb-2.
        * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
        * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
        * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
        tables.
        (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
        comptibility.
        * config/arm/ieee754-sf.S: Ditto.
        * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
        (thumb1_base_register_rtx_p): ... to this.
        (thumb_index_register_rtx_p): Rename...
        (thumb1_index_register_rtx_p): ... to this.
        (thumb_output_function_prologue): Rename...
        (thumb1_output_function_prologue): ... to this.
        (thumb_legitimate_address_p): Rename...
        (thumb1_legitimate_address_p): ... to this.
        (thumb_rtx_costs): Rename...
        (thumb1_rtx_costs): ... to this.
        (thumb_compute_save_reg_mask): Rename...
        (thumb1_compute_save_reg_mask): ... to this.
        (thumb_final_prescan_insn): Rename...
        (thumb1_final_prescan_insn): ... to this.
        (thumb_expand_epilogue): Rename...
        (thumb1_expand_epilogue): ... to this.
        (arm_unwind_emit_stm): Rename...
        (arm_unwind_emit_sequence): ... to this.
        (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
        thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
        thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
        arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
        thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
        thumb2_output_casesi): New functions.
        (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
        (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
        FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
        THUMB2_WORK_REGS): Define.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
        arm_condexec_mask, arm_condexec_masklen)): New variables.
        (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
        (arm_override_options): Check new CPU capabilities.
        Set new architecture flag variables.
        (arm_isr_value): Handle v7m interrupt functions.
        (user_return_insn): Return 0 for v7m interrupt functions.  Handle
        Thumb-2.
        (const_ok_for_arm): Handle Thumb-2 constants.
        (arm_gen_constant): Ditto.  Use movw when available.
        (arm_function_ok_for_sibcall): Return false for v7m interrupt
        functions.
        (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
        (thumb_find_work_register, arm_load_pic_register,
        legitimize_tls_address, arm_address_cost, load_multiple_sequence,
        emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
        print_multi_reg, output_mov_long_double_fpa_from_arm,
        output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
        output_mov_double_fpa_from_arm, output_move_double,
        arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
        output_return_instruction, arm_output_function_prologue,
        arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
        arm_output_mi_thunk, thumb_set_return_address): Ditto.
        (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
        (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
        (arithmetic_instr, shift_op): Use arm_shift_nmem.
        (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
        '!' and 'L'.
        (arm_final_prescan_insn): Use extract_constrain_insn_cached.
        (thumb_expand_prologue): Use thumb_set_frame_pointer.
        (arm_file_start): Output directive for unified syntax.
        (arm_unwind_emit_set): Handle stack alignment instruction.
        * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
        Add v6t2, v7, v7a, v7r and v7m.
        (RETLDM): Add Thumb-2 code.
        (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
        * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
        (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
        TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
        THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
        ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
        THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
        CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
        ADJUST_INSN_LENGTH): Define.
        (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
        STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
        BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
        PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
        SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
        TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
        HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
        HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
        REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
        REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
        LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
        GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
        ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
        FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
        PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
        * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
        cortex-m3.
        * config/arm/arm-tune.md: Regenerate.
        * config/arm/arm-protos.h: Update prototypes.
        * config/arm/vfp.md: Enable patterns for Thumb-2.
        (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
        (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
        (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
        thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
        * config/arm/libunwind.S: Add Thumb-2 code.
        * config/arm/constraints.md: Update include Thumb-2.
        * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
        * config/arm/ieee754-df.S: Ditto.
        * config/arm/bpabi.S: Ditto.
        * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
        * config/arm/predicates.md (low_register_operand,
        low_reg_or_int_operand, thumb_16bit_operator): New.
        (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
        (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
        * config/arm/t-arm-elf: Add armv7 multilib.
        * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
        Include thumb2.md.
        (UNSPEC_STACK_ALIGN, ce_count): New.
        (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
        arm_zero_extendsidi2, arm_zero_extendqidi2): New
        insns/expanders.
        * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
        (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
        thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
        * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
        (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
        thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
        insns.
        * doc/extend.texi: Document ARMv7-M interrupt functions.
        * doc/invoke.texi: Document Thumb-2 new cores+architectures.

2007-01-03  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
        (struct _Unwind_Context): Rename args_size to flags, remove
        signal_frame field, add a new args_size field and version field.
        (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
        _Unwind_IsExtendedContext): New inline functions.
        (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
        Assume by_value array is only present if _Unwind_IsExtendedContext.
        (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
        _Unwind_IsSignalFrame.
        (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
        (uw_update_context_1): Use _Unwind_SetSignalFrame.
        (uw_init_context_1): Initialize context->flags to
        EXTENDED_CONTEXT_BIT.
        * config/rs6000/linux-unwind.h (frob_update_context): Use
        _Unwind_SetSignalFrame.

2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30353
        * gimplify.c (gimplify_modify_expr_complex_part): Move below
        tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
        the value.

2007-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
        REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
        RET, AT_SP): Remove.
        * config/i386/i386.md (*sse_prologue_save_insn): Use return
        instead of RET.

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

        * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.

2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
        * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
        to loop_version.
        * cfgloopmanip.c (scale_loop_frequencies): Export.
        (loopify): Scale the frequencies by prescribed coefficients.
        (set_zero_probability): New function.
        (duplicate_loop_to_header_edge): Improve updating of frequencies.
        (lv_adjust_loop_entry_edge, loop_version): Set probabilities
        and frequencies according to arguments.
        * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
        correctly.
        * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
        * modulo-sched.c (sms_schedule): Set probabilities for entering
        versioned loop correctly.
        * tree-vect-transform.c (vect_transform_loop): Ditto.
        * cfgloop.h (loopify, loop_version): Declaration changed.
        (scale_loop_frequencies): Declared.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * cgraph.c: Include tree-flow.h
        (cgraph_add_new-function): Handle IPA_SSA mode; execute
        early_local_passes.
        * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
        * tree-pass.h (pass_all_early_optimizations): Declare.
        * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
        early_local_passes.
        (cgraph_analyze_function): Do early_local_passes.
        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-optimize.c (gate_all_optimizations): Do not execute when not in
        SSA form.
        (gate_all_early_local_passes): New gate.
        (pass_early_local_passes): Use new gate.
        (execute_early_local_optimizations): New functions.
        (gate_all_early_optimizations): New gate.
        (pass_all_early_optimizations): New pass.
        (execute_free_datastructures): Free SSA only when initialized.
        (gate_init_datastructures): Init only when optimizing.
        (tree_lowering_passes): Do early local passes when called late.
        * tree-profile.c (do_tree_profiling): Don't profile functions added
        late.
        (do_early_tree_profiling, pass_early_tree_profile): Kill.
        * tree-cfg.c (update_modified_stmts): Do not update when operands are
        not active.
        * passes.c (init_optimizations_passes): Reorder so we go into SSA
        during early_local_passes.
        * Makefile.in (cgraph.o): Add dependency on tree-flow.h.


2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Update copyright year.

2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
        in $(lang_checks) and check-consistency targets.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
        are not active.
        * passes.c (init_optimization_passes): Put mudflap_2 after
        free_datastructures.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
        Set NOTHROW flag on call statements proved to be nothrow.
        Update statement of local calls so new pure/const functions are
        updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
        goto receivers.
        (tree_rest_of_compilation): Register hooks and initialize bitmap
        early. Do not set after_inlining flag.

2007-01-02  Steve Ellcey  <sje@cup.hp.com>

        * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
        HOST_BITS_PER_LONGLONG

2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>

        PR c/19977
        * c-typeck.c (store_init_value): Don't emit pedantic overflow
        warning for non-static initializers.

2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>

        * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
        m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
        rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
        Always use set_unique_reg_note to add REG_EQUAL notes.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        Revert:
        2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Ian Lance Taylor  <iant@google.com>

        * c-common.c (c_common_truthvalue_conversion): When warning about
        using an assignment as a truth value, set TREE_NO_WARNING.

2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * c.opt (Wold-style-declaration): New.
        * doc/invoke.texi (C-only Warning Options): New.
        (Wold-style-declaration): Document it.
        (Wextra): Enabled by -Wextra.
        * c-opts.c (c_common_post_options): Enabled by -Wextra.
        * c-decl.c (declspecs_add_scspec): Replace -Wextra with
        -Wold-style-declaration.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>

        * c-common.c (c_common_nodes_and_builtins): Since variants of
        void_type_node get built before it is given a name, we need to
        give those variants the name, too.
        (complete_array_type): We need to work with the canonical main
        type of the array, from which we will build the qualified version.
        * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
        * print-tree.c (print_node): Display canonical type information
        for each type.
        * stor-layout.c (layout_type): When we don't know the
        alignment of a type for which we're building an array, we end up
        guessing wrong, so make the type require structural equality.
        * tree.c (make_node_stat): When we build a new type, it is its
        own canonical type.
        (build_type_attribute_qual_variant): When building an attribute
        variant, its canonical type is the non-attribute variant. However,
        if the attributes are target-dependent and they differ, we need to
        use structural equality checks for this type.
        (build_qualified_type): A qualified type is not equivalent to its
        unqualified variant; set the canonical type appropriately.
        (build_distinct_type_copy): When building a distinct type from
        another type, the new type is its own canonical type.
        (build_variant_type_copy): When building a new type variant, we
        assume that it is equivalent to the original type.
        (build_pointer_type_for_mode): When building a pointer type, also
        build a canonical type pointer.
        (build_reference_type_for_mode): When building a reference type,
        also build a canonical type reference.
        (build_index_type): When we can't hash an index type (e.g.,
        because its maximum value is negative), the index type requires
        structural equality tests.
        (build_array_type): Build the canonical form of an array type.
        (build_function_type): Function types require structural equality,
        because they contain default arguments, attributes, etc.
        (build_method_type_directly): Ditto for method types.
        (build_offset_type): Build the canonical offset type.
        (build_complex_type): Build the canonical vector type.
        (make_vector_type): Build the canonical vector type.
        * tree.h (TYPE_CANONICAL): New.
        (TYPE_STRUCTURAL_EQUALITY_P): New.
        (SET_TYPE_STRUCTURAL_EQUALITY): New.
        (struct tree_type): Added "canonical" field.
        * params.h (VERIFY_CANONICAL_TYPES): New.
        * doc/c-tree.texi (TYPE_CANONICAL): Document.
        (TYPE_STRUCTURAL_EQUALITY_P): Document.
        (SET_TYPE_STRUCTURAL_EQUALITY): Document.
        * doc/invoke.texi (verify-canonical-types): Document --param
        parameter for verifying canonical types.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
        powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
        powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
        powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
        tm_file.
        * config/rs6000/e500.h: New.
        * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
        TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
        Remove.
        * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
        TARGET_E500_DOUBLE): Remove.
        * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
        * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
        * config/rs6000/rs6000.c (rs6000_override_options): Use
        CHECK_E500_OPTIONS.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
        TARGET_E500_DOUBLE), not TARGET_E500, for %y.
        (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
        rs6000_emit_cmove): Don't check TARGET_E500.
        * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
        sordered): Don't check TARGET_E500.

2007-01-01  Eric Christopher  <echristo@apple.com>

        * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
        HARD_REGISTER_NUM_P.

2007-01-01  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
        "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
        has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
        eq/ne Y".

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac: Remove support for building with Apple's gcc-3.1.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        PR middle-end/30311
        * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
        REG is a hard register.  Do not modify REG before calling
        subreg_nregs.
        * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
        multiple of the size of YMODE for certain lowpart cases.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/30253
        * gimplify (voidify_wrapper_expr): Update for
        GIMPLE_MODIFY_STMT.

2007-01-01  Andreas Schwab  <schwab@suse.de>

        PR target/29166
        * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
        save of BR0 in extra_spill_size instead of spill_size.
        (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
        area.
        (ia64_expand_epilogue): Restore BR0 from its new location.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
        Use a temporary variable if the left hand side is not a gimple
        register.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_return_expr): Make the temporary variable
        for the return expression, a gimple register variable.

2007-01-01  Jan Hubicka  <jh@suse.cz>

        * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
        INSN_LIST.

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
        .literal16.
        * config/darwin.c (machopic_select_rtx_section): Use
        HAVE_GAS_LITERAL16.
        (darwin_mergeable_constant_section): Likewise.
        * configure: Regenerate.
        * config.in: Regenerate.

2007-01-01  Jan Hubicka  <jh@suse.cz>
            Andrew Pinski  <pinskia@gmail.com>

        * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
        before starting IPA passes.