OSDN Git Service

2008-03-27 H.J. Lu <hongjiu.lu@intel.com>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index 4de4233..5c80fc9 100644 (file)
@@ -1,3 +1,260 @@
+2008-03-27  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR target/35657
+       * config/i386/i386.c (ix86_function_arg_boundary): Align
+       decimal floating point to its natural boundary.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/35716
+       * fold-const.c (fold_comparison): Restrict distinct decl
+       comparison folding to VAR_DECLs and PARM_DECLs.  Do not
+       solely rely on operand_equal_p.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       PR c/32511
+       * c-common.c (handle_weak_attribute): Reject combination of
+       weak and inline.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/32810
+       * tree-ssa-ccp.c (get_symbol_constant_value): Strip useless
+       conversions from DECL_INITIAL.
+       (fold_const_aggregate_ref): Likewise from constructor elements.
+
+2008-03-27  Zdenek Dvorak  <ook@ucw.cz>
+
+       * tree-affine.h (aff_combination_expand): Declare.
+       (get_inner_reference_aff): Likewise.
+       * tree-affine.c (aff_combination_expand): Split out from
+       tree_to_aff_combination_expand.
+       (get_inner_reference_aff): New function.
+       * tree-parloops.c (loop_parallel_p): Free vectorizer info.
+        * tree-ssa-loop-im.c: Include tree-affine.h and pointer-set.h.
+        (struct lim_aux_data): sm_done field removed.
+        (mem_ref_loc_p, mem_ref_locs_p): New types.
+        (struct mem_ref): Added id, stored, accesses_in_loop,
+        indep_loop, dep_loop, indep_ref, dep_ref fields.
+        Removed is_stored, locs and next fields.
+        (memory_accesses): New variable.
+        (movement_possibility): Do not allow moving statements
+        that store to memory.
+        (outermost_indep_loop, simple_mem_ref_in_stmt, mem_ref_in_stmt):
+        New functions.
+        (determine_max_movement): For statements with memory references,
+        find the outermost loop in that the reference is independent.
+        (move_computations_stmt): Mark the virtual operands for
+        renaming.
+        (memref_free, mem_ref_alloc, mem_ref_locs_alloc, mark_ref_stored,
+        gather_mem_refs_stmt, gather_mem_refs_in_loops, vtoe_hash, vtoe_eq,
+        vtoe_free, record_vop_access, get_vop_accesses, get_vop_stores,
+        add_vop_ref_mapping, create_vop_ref_mapping_loop,
+        create_vop_ref_mapping, analyze_memory_references,
+        cannot_overlap_p, mem_refs_may_alias_p, rewrite_mem_ref_loc,
+        get_all_locs_in_loop, ref_always_accessed_p,
+        refs_independent_p, record_indep_loop, ref_indep_loop_p_1,
+        ref_indep_loop_p, can_sm_ref_p, find_refs_for_sm,
+        store_motion_loop, store_motion): New functions.
+        (struct vop_to_refs_elt): New type.
+        (record_mem_ref_loc, free_mem_ref_locs, rewrite_mem_refs,
+        memref_hash, memref_eq, hoist_memory_references): Rewritten.
+        (schedule_sm): Replaced by...
+        (execute_sm): ... this.
+        (determine_lsm_ref, hoist_memory_references,
+        loop_suitable_for_sm, gather_mem_refs_stmt, gather_mem_refs,
+        find_more_ref_vops, free_mem_ref, free_mem_refs,
+        determine_lsm_loop, determine_lsm): Removed.
+        (tree_ssa_lim_finalize): Free data structures used by store
+        motion.
+        (tree_ssa_lim): Call analyze_memory_references.  Use
+        store_motion instead of determine_lsm.
+
+2008-03-27  Paolo Bonzini  <bonzini@gnu.org>
+
+       * config.cc (m68hc11, m6811, m68hc12, m6812): Add usegas.h,
+       rename tmake_file to m68hc11/t-m68hc11.
+       (mcore): Set inhibit_libc to true.
+       * config.host (alpha*-dec-*vms*): Set extra_programs.
+       (interix3*): Don't use host_xmake_file.
+       * configure.ac: Let config.gcc override inhibit_libc.
+       * configure: Regenerate.
+
+       * config/alpha/x-vms (EXTRA_PROGRAMS): Remove.
+       * config/t-openbsd-thread: Remove commented out lines.
+       
+       * config/x-interix: Remove.
+
+       * config/m68hc11/t-m68hc11-gas: Rename to...
+       * config/m68hc11/t-m68hc11: ... this.  Remove T_CPPFLAGS.
+
+       * config/mcore/t-mcore: Remove T_CFLAGS.
+       * config/mcore/t-mcore-pe: Likewise.
+
+2008-03-27  Paolo Bonzini  <bonzini@gnu.org>
+
+       * configure.ac: Replace custom __GNU_SOURCE test with
+       AC_USE_SYSTEM_EXTENSIONS.  Move it earlier.
+       * aclocal.m4: Regenerate.
+       * configure: Regenerate.
+       * config.in: Regenerate.
+
+2008-03-27  Richard Guenther  <rguenther@suse.de>
+
+       * fold-const.c (target.h): Include.
+       (fold_comparison): Fold comparison of addresses of decls
+       that bind locally or of constants.  Consolidate address folding code.
+       * tree-vrp.c (operand_less_p): Deal with non-INTEGER_CST
+       results from fold_binary_to_constant.
+       (compare_values_warnv): Likewise.
+
+2008-03-27  Andrew Pinski  <pinskia@gmail.com>
+
+       PR middle-end/35429
+       * fold-const.c (fold_truthop): Check for integeral types when folding
+       a == 0 && b == 0 and a != 0 || b != 0 .
+
+2008-03-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * tree.c (get_unwidened): Remove code fiddling with COMPONENT_REF.
+
+2008-03-26  Andreas Schwab  <schwab@suse.de>
+
+       * doc/invoke.texi: Fix use of @item vs. @itemx.
+
+2008-03-26  Tom Tromey  <tromey@redhat.com>
+
+       * Makefile.in (build/gensupport.o, build/print-rtl.o,
+       build/read-rtl.o, build/rtl.o, build/gencondmd.o, build/genattr.o,
+       build/genattrtab.o, build/genautomata.o, build/gencheck.o,
+       build/gencodes.o, build/genconditions.o, build/genconfig.o,
+       build/genconstants.o, build/genemit.o, build/genextract.o,
+       build/genflags.o, build/genmddeps.o, build/genopinit.o,
+       build/genoutput.o, build/genpeep.o, build/genrecog.o): Depend on
+       options.h.
+
+2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       Revert
+       2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       * fold-const.c (target.h): Include.
+       (fold_comparison): Fold comparison of addresses of two decls
+       that bind locally.  Consolidate address folding code.
+
+2008-03-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+       * builtins.c (expand_builtin_pow, fold_builtin_cabs,
+       fold_builtin_sqrt, fold_builtin_cbrt, fold_builtin_logarithm,
+       fold_builtin_hypot, fold_builtin_pow): Remove uses of dconst3,
+       dconstsqrt2, dconstthird, dconste and/or dconst10.
+       * config/i386/i386.c (ix86_emit_swsqrtsf): Likewise.
+       * emit-rtl.c (dconst3, dconst10, dconstm2, dconstthird,
+       dconstsqrt2, dconste): Delete.
+       (init_emit_once): Likewise.  Simplify initializing dconstm1.
+       Constify variable.
+       * real.c (get_real_const): New.
+       * real.h (dconst3, dconst10, dconstm2, dconstthird,
+       dconstsqrt2, dconste): Delete.
+       (real_value_const, get_real_const): New.
+
+2008-03-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * config/i386/cygming.h (BIGGEST_ALIGNMENT): Removed.
+
+       * config/i386/i386.c (ix86_function_arg_boundary): Check
+       BIGGEST_ALIGNMENT instead of 128.
+       (setup_incoming_varargs_64): Likewise.
+
+2008-03-26  Tom Tromey  <tromey@redhat.com>
+
+       * Makefile.in (DEPFILES): Add missing '/'.
+
+2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       * fold-const.c (target.h): Include.
+       (fold_comparison): Fold comparison of addresses of two decls
+       that bind locally.  Consolidate address folding code.
+
+2008-03-26  Nick Clifton  <nickc@redhat.com>
+
+       PR target/31232
+       * config/stormy16/stormy16.c (xstormy16_legitimate_address_p): Do
+       not allow INT+INT as a legitimate addressing mode.
+
+2008-03-26  Richard Guenther  <rguenther@suse.de>
+
+       * tree-flow.h (widen_bitfield): Remove declaration.
+       * tree-ssa-ccp.c (visit_assignment): Remove unneeded code.
+       (widen_bitfield): Remove function.
+       * tree-ssa-dom.c (record_equivalences_from_stmt): Remove unneeded
+       code.
+
+2008-03-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+       PR target/31558
+       * config/rs6000/rs6000-c.c (rs6000_builtin_type_compatible): Handle
+       error_mark_node's.
+
+2008-03-25  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+       PR rtl-optimization/35232
+       * reload1.c (reg_reloaded_call_part_clobbered): Clarify comment.
+       (forget_old_reloads_1, forget_marked_reloads): Don't clear
+       reg_reloaded_call_part_clobbered here.
+       (reload_regs_reach_end_p): New function.
+       (reload_reg_rtx_for_input): New variable.
+       (reload_reg_rtx_for_output): Likewise.
+       (emit_input_reload_insns): Use reloadreg rather than rl->reg_rtx
+       when reassigning a pseudo register.  Load reloadreg from 
+       reload_reg_rtx_for_input, moving the mode and register
+       calculation to...
+       (do_input_reload): ...here.  Use the mode-adjusted reg_rtx
+       instead of the original when deciding whether an input reload
+       would be a no-op or whether an output reload can be deleted.
+       (emit_output_reload_insns): Use the mode-adjusted reg_rtx
+       when setting up new_spill_reg_store.  Load it from
+       reload_reg_rtx_for_output, moving the mode and register
+       calculation to...
+       (do_output_reload): ...here.  Use the mode-adjusted reg_rtx
+       instead of the original when deciding whether an output reload
+       would be a no-op.  Do the same when modifying insn notes.
+       Use rtx_equal_p instead of == to compare the registers.
+       (inherit_piecemeal_p): Take a mode and two register numbers
+       as argument.
+       (emit_reload_insns): Clear new_spill_reg_store for every hard
+       register in the reload register.  Remove spill registers
+       from reg_reloaded_valid before considering whether to record
+       inheritance information for them.  Use reload_reg_rtx_for_output
+       instead of reg_rtx when recording output reloads.  Use
+       reload_reg_rtx_for_input instead of reg_rtx when recording
+       input reloads.  Set or clear reg_reloaded_call_part_clobbered
+       at the same time as setting reg_reloaded_valid.
+       (delete_output_reload): Add a new_reload_reg parameter and use it
+       instead of rld[j].reg_rtx.
+       (emit_input_reload_insns, do_input_reload, do_output_reload): Adjust
+       calls accordingly.
+
+2008-03-25  Tom Tromey  <tromey@redhat.com>
+
+       * Makefile.in (build/gensupport.o): Depend on insn-modes.h.
+       (build/genattr.o): Likewise.
+       (build/genattrtab.o): Likewise.
+       (build/gencodes.o): Likewise.
+       (build/genconfig.o): Likewise.
+       (build/genconstants.o): Likewise.
+       (build/genemit.o): Likewise.
+       (build/genextract.o): Likewise.
+       (build/genflags.o): Likewise.
+
+2008-03-25  Bob Wilson  <bob.wilson@acm.org>
+       
+       * config/xtensa/xtensa.c (xtensa_va_start): Use build_int_cst
+       instead of size_int for integer types.
+       (xtensa_gimplify_va_arg_expr): Likewise.  Convert index to sizetype
+       to match type of MINUS_EXPR.
+       
 2008-03-25  Tom Tromey  <tromey@redhat.com>
 
        * configure: Rebuilt.
        * config/v850/t-v850 (v850-c.o): Update.
        * config/t-vxworks (vxworks.o): Update.
        * config/t-sol2 (sol2-c.o, sol2.o): Update.
-       * config/t-darwin (darwin.o, darwin-c.o, darwin-driver.o):
-       Update.
+       * config/t-darwin (darwin.o, darwin-c.o, darwin-driver.o): Update.
        * config/spu/t-spu-elf (spu-c.o): Update.
        (spu.o): Remove.
        * config/sh/t-symbian (sh-c.o): Update.
        (collect2.o, c-opts.o, gcc.o, gccspec.o, gcc-options.o,
        cppdefault.o, protoize.o, unprotoize.o, intl.o, version.o,
        prefix.o, toplev.o): Reduce to variable setting.
-       (libbackend.o): Use COMPILE.  Remove most dependencies.  Move
-       later.
+       (libbackend.o): Use COMPILE.  Remove most dependencies.  Move later.
        ($(out_object_file), gcc-options.o): New targets.
-       ($(ALL_HOST_OBJS)): New target.
-       Include dependency files.
+       ($(ALL_HOST_OBJS)): New target.  Include dependency files.
        * configure: Rebuilt.
-       * configure.ac: Call ZW_CREATE_DEPDIR,
-       ZW_PROG_COMPILER_DEPENDENCIES.
-       * doc/sourcebuild.texi (Front End Directory): Document new
-       variable.
+       * configure.ac: Call ZW_CREATE_DEPDIR, ZW_PROG_COMPILER_DEPENDENCIES.
+       * doc/sourcebuild.texi (Front End Directory): Document new variable.
 
 2008-03-25  Douglas Gregor  <doug.gregor@gmail.com>
 
-       * c-common.c (c_sizeof_or_alignof_type): If we're not allowed to
-       complain when we hit an error, return ERROR_MARK_NODE.
+       * c-common.c (c_sizeof_or_alignof_type): If we're not allowed to
+       complain when we hit an error, return ERROR_MARK_NODE.
 
 2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>
 
 
 2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>
 
-       * config/sh/sh.c (sh_expand_t_scc): Emit movrt for SH2A if
-       possible.
+       * config/sh/sh.c (sh_expand_t_scc): Emit movrt for SH2A if possible.
        * config/sh/sh.md (xorsi3_movrt, movrt): New insns.
 
 2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>
 
        * config/sh/constraints.md (I28): New constraint.
        * config/sh/sh.c (broken_move): Add support for movi20s.
-       * config/sh/sh.md (movsi_ie): Add the alternative for
-       movi20s.
+       * config/sh/sh.md (movsi_ie): Add the alternative for movi20s.
 
 2008-03-25  Anil Paranjape  <anil.paranjape@kpitcummins.com>
            Jayant Sonar  <Jayant.sonar@kpitcummins.com>
 2008-03-19  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/35609
-       * tree-ssa.c (always_executed): New global flag.
-       (warn_uninitialized_var): If !always_executed warn with "maybe"
+       * tree-ssa.c (walk_data): New structure.
+       (warn_uninitialized_var): If not always_executed warn with "maybe"
        instead of "is".
        (execute_early_warn_uninitialized): Compute post-dominators.
        Initialize always_executed before processing each basic block.