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* config/rs6000/rs6000.c (rs6000_stack_info): Don't compare against
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index 09091ea..7cbbbfb 100644 (file)
@@ -1,3 +1,806 @@
+2011-04-07  Alan Modra  <amodra@gmail.com>
+
+       * config/rs6000/rs6000.c (rs6000_stack_info): Don't compare against
+       previous stack info.
+
+2011-04-07  Tom de Vries  <tom@codesourcery.com>
+
+       PR target/43920
+       * cfgcleanup.c (try_crossjump_to_edge): Add dir parameter.  Pass dir to
+       flow_find_cross_jump.  Swap variables to implement backward replacement.
+       (try_crossjump_bb): Add argument to try_crossjump_to_edge.
+
+2011-04-07  Tom de Vries  <tom@codesourcery.com>
+
+       PR target/43920
+       * cfgcleanup.c (walk_to_nondebug_insn): New function.
+       (flow_find_cross_jump): Use walk_to_nondebug_insn.  Recalculate bb1 and
+       bb2.
+       (try_crossjump_to_edge): Handle case that newpos1 or newpos2 is not src1
+       or src2.  Redirect edges to the last basic block.  Update frequency and
+       count on multiple basic blocks in case of fallthru.
+
+2011-04-07  Tom de Vries  <tom@codesourcery.com>
+
+       PR target/43920
+       * cfgcleanup.c (equal_different_set_p, can_replace_by, merge_dir): New
+       function.
+       (old_insns_match_p): Change return type.  Replace return false/true with
+       return dir_none/dir_both.  Use can_replace_by.
+       (flow_find_cross_jump): Add dir_p parameter.  Init replacement direction
+       from dir_p.  Register replacement direction in dir, last_dir and
+       afterlast_dir.  Handle new return type of old_insns_match_p using
+       merge_dir.  Return replacement direction in dir_p.
+       (flow_find_head_matching_sequence, outgoing_edges_match): Handle new
+       return type of old_insns_match_p.
+       (try_crossjump_to_edge): Add argument to call to flow_find_cross_jump.
+       * ifcvt.c ( cond_exec_process_if_block): Add argument to call to
+       flow_find_cross_jump.
+       * basic-block.h (enum replace_direction): New type.
+       (flow_find_cross_jump): Add parameter to declaration.
+
+2011-04-06  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/i386/sse.md (AVXMODEDCVTDQ2PS): Remove.
+       (AVXMODEDCVTPS2DQ): Ditto.
+       (VEC_FLOAT_MODE): Ditto.
+       (<sse>_andnot<mode>3): Merge with avx_andnot<mode>3.  Use VF mode
+       iterator.  Handle TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL target flag.
+       (<any_logic:code><mode>3): Use VF mode iterator.
+       (*<any_logic:code><mode>3): Merge with *avx_<any_logic:code><mode>3.
+       Use VF mode iterator.
+       (copysign<mode>3): Use VF mode iterator.
+       (*andnot<MODEF:mode>3): Merge with *avx_andnot<MODEF:mode>3.  Handle
+       TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL target flag.
+       (*<any_logic:code><MODEF:mode>3): Merge with
+       *avx_<any_logic:code><MODEF:mode>3.
+       (sse_cvtsi2ss): Merge with *avx_cvtsi2ss.
+       (sse_cvtsi2ssq): Merge with *avx_cvtsi2ssq.
+       (avx_cvtdq2ps256): Split from avx_cvtdq2ps<avxmodesuffix>.
+       (avx_cvtdq2ps<avxmodesuffix>): Remove.
+       (sse2_cvtdq2ps): Use %v modifier.
+       (avx_cvtps2dq256): Split from avx_cvtps2dq<avxmodesuffix>.
+       (avx_cvtps2dq<avxmodesuffix>): Remove.
+       (sse2_cvtps2dq): Use %v modifier.
+       (avx_cvttps2dq256): Split from avx_cvttps2dq<avxmodesuffix>.
+       (avx_cvttps2dq<avxmodesuffix>): Remove.
+       (sse2_cvttps2dq): Use %v modifier.
+       (sse2_cvtsi2sd): Merge with *avx_cvtsi2sd.
+       (sse2_cvtsi2sdq): Merge with *avx_cvtsi2sdq.
+       (sse2_cvtsd2siq): Fix insn template.
+       (sse2_cvtsd2siq_2): Ditto.
+       (sse2_cvttsd2siq): Ditto.
+       (sse2_cvtsd2ss): Merge with *avx_cvtsd2ss.
+       (sse2_cvtss2sd): Merge with *avx_cvtss2sd.
+
+2011-04-06  Joseph Myers  <joseph@codesourcery.com>
+
+       * gcov-io.c: Use GCC Runtime Library Exception.
+
+2011-04-06  Jakub Jelinek  <jakub@redhat.com>
+
+       PR debug/48466
+       * dwarf2out.c (based_loc_descr): If drap_reg is INVALID_REGNUM, use
+       as base_reg whatever register reg has been eliminated to, instead
+       of hardcoding STACK_POINTER_REGNUM.
+
+2011-04-06  Joseph Myers  <joseph@codesourcery.com>
+
+       * doc/tm.texi.in: Document C target hooks as separate from general
+       target hooks.
+       * doc/tm.texi: Regenerate.
+       * genhooks.c (struct hook_desc): Add docname field.
+       (HOOK_VECTOR_1, DEFHOOKPOD, DEFHOOK, DEFHOOK_UNDOC).  Initialize
+       docname field.
+       (hook_array): Include c-target.def.
+       (emit_documentation): Use docname field in output.
+       (emit_init_macros): Take docname argument.  Only emit definitions
+       for hooks matching docname.
+       (main): Expect additional arguments in all cases.  Pass argument
+       to emit_init_macros.
+       * target.def: Move initial macro definitions and comments to
+       target-hooks-macros.h.
+       (gcc_targetcm): Move to c-family/c-target.def.
+       * target.h (targetcm): Move declaration to c-family/c-target.h.
+       * targhooks.c (default_handle_c_option): Move to
+       c-family/c-opts.c.
+       * targhooks.h (default_handle_c_option): Move declaration to
+       c-family/c-common.h.
+       * target-hooks-macros.h: New file.
+       * config.gcc (target_has_targetcm): Define and use to add to
+       c_target_objs and cxx_target_objs.
+       * config/default-c.c: New file.
+       * config/darwin-c.c: Include c-target.h and c-target-def.h instead
+       of target.h and target-def.h.
+       (TARGET_HANDLE_C_OPTION, targetcm): Define later in file.
+       (darwin_objc_construct_string, darwin_cfstring_ref_p,
+       darwin_check_cfstring_format_arg): Make static.
+       (TARGET_OBJC_CONSTRUCT_STRING_OBJECT,
+       TARGET_STRING_OBJECT_REF_TYPE_P,
+       TARGET_CHECK_STRING_OBJECT_FORMAT_ARG): Define here.
+       * config/darwin-protos.h (darwin_objc_construct_string,
+       darwin_cfstring_ref_p, darwin_check_cfstring_format_arg): Don't
+       declare.
+       * config/darwin.h (TARGET_OBJC_CONSTRUCT_STRING_OBJECT,
+       TARGET_STRING_OBJECT_REF_TYPE_P,
+       TARGET_CHECK_STRING_OBJECT_FORMAT_ARG, TARGET_HAS_TARGETCM): Remove.
+       * config/t-darwin (darwin-c.o): Update dependencies.
+       * system.h (TARGET_HAS_TARGETCM): Poison.
+       * Makefile.in (TARGET_H): Update.
+       (TARGET_DEF, C_TARGET_DEF, C_TARGET_H, C_TARGET_DEF_H): Define.
+       (c-family/c-format.o, c-family/c-opts.o): Update dependencies.
+       (default-c.o): New target.
+       (s-target-hooks-def-h): Pass "Target Hook" string to genhooks.
+       (c-family/c-target-hooks-def.h, s-c-target-hooks-def-h): New targets.
+       (s-tm-texi): Pass -d option to genhooks.  Also test timestamp on
+       c-target.def.
+       (build/genhooks.o): Update dependencies.
+
+2011-04-06  Richard Guenther  <rguenther@suse.de>
+
+       * ipa-inline.c (enum inlining_mode): Remove.
+       (cgraph_flatten): Use some other token.
+       (cgraph_edge_early_inlinable_p): New function, split out from ...
+       (cgraph_perform_always_inlining): New function, split out from ...
+       (cgraph_decide_inlining_incrementally): ... here.
+       (cgraph_mark_inline_edge): Adjust.
+       (cgraph_early_inlining): Re-structure.
+       (pass_early_inline): Require SSA form.
+
+2011-03-06  Andrew Stubbs  <ams@codesourcery.com>
+           Julian Brown  <julian@codesourcery.com>
+           Mark Shinwell  <shinwell@codesourcery.com>
+
+       * config/arm/arm.h (arm_class_likely_spilled_p): Check against
+       LO_REGS only for Thumb-1.
+       (MODE_BASE_REG_CLASS): Restrict base registers to those which can
+       be used in short instructions when optimising for size on Thumb-2.
+
+2011-04-06  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * gimple-low.c (lower_gimple_return): When not optimizing, force labels
+       associated with user returns to be preserved.
+
+2011-04-06  Tristan Gingold  <gingold@adacore.com>
+
+       * dbxout.c: (debug_nesting, symbol_queue, symbol_queue_index)
+       (symbol_queue_size, DBXOUT_DECR_NESTING)
+       (DBXOUT_DECR_NESTING_AND_RETURN): Also define
+       if XCOFF_DEBUGGING_INFO.
+
+2011-04-06  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/i386/i386.md (attribute isa): New.
+       (attribute enabled): New.
+       (setcc_<mode>_sse): Merge from *{avx,sse}_setcc<mode>.
+       (*fop_<mode>_comm_mixed): Merge with *fop_<mode>_comm_mixed_avx.
+       (*fop_<mode>_comm_sse): Merge with *fop_<mode>_comm_avx.
+       (*fop_<mode>_1_mixed): Merge with *fop_<mode>_1_mixed_avx.
+       (*fop_<mode>_1_sse): Merge with *fop_<mode>_1_avx.
+       (<smaxmin:code><mode>3): Merge with *avx_<smaxmin:code><mode>3.
+       (*ieee_smin<mode>3): Merge with *avx_ieee_smin<mode>3.
+       (*ieee_smax<mode>3): Merge with *avx_ieee_smax<mode>3.
+
+       * config/i386/sse.md (VF): New mode iterator.
+       (VF1): Ditto.
+       (VF2): Ditto.
+       (VF_128): Ditto.
+       (SSEMODEF4): Remove.
+       (attribute sse): Handle V8SF and V4DF modes.
+       (<absneg:code><mode>2): Use VF mode iterator.
+       (*absneg<mode>2): Merge from *{avx,sse}_absneg<mode>2.  Use VF
+       mode iterator.
+       (<plusminus_insn><mode>3): Use VF mode iterator.
+       (*<plusminus_insn><mode>3): Merge with *avx_<plusminus_insn><mode>3.
+       Use VF mode iterator.
+       (<sse>_vm<plusminus_insn><mode>3): Merge with
+       *avx_vm<plusminus_insn><mode>3.  Use VF_128 mode iterator.
+       (mul<mode>3): Use VF mode iterator.
+       (*mul<mode>3): Merge with *avx_mul<mode>3.  Use VF mode iterator.
+       (<sse>_vmmul<mode>3): Merge with *avx_vmmul<mode>3.  Use VF_128
+       mode iterator.
+       (div<VF2:mode>3): Merge from divv2df3 and divv4df3.
+       (div<VF1:mode>3): Merge from divv4sf3 and divv8sf3.
+       (<sse>_div<mode>3): Merge with *avx_div<mode>3.  Use VF mode iterator.
+       (<sse>_vmdiv<mode>3): Merge with *avx_vmdiv<mode>3.  Use VF_128
+       mode iterator.
+       (<sse>_rcp<mode>2): Merge from avx_rcpv8sf2 and sse_rcpv4sf2.
+       Use VF1 mode iterator.
+       (sse_vmrcpv4sf2): Merge with *avx_vmrcpv4sf2.
+       (sqrt<VF2:mode>2): New expander.
+       (sqrt<VF1:mode>2): Merge from sqrtv4sf2 and sqrtv8sf2.
+       (<sse>_sqrt<mode>2): Merge from avx_sqrtv8sf2, sse_sqrtv4sf, sqrtv4df2
+       and sqrtv2df2.  Use VF mode iterator.
+       (<sse>_vmsqrt<mode>2): Merge with *avx_vmsqrt<mode>2.  Use VF_128
+       mode iterator.
+       (rsqrt<VF1:mode>2): Merge from rsqrtv4sf2 and rsqrtv8sf2.
+       (<sse>_rsqrt<mode>2): Merge from avx_rsqrtv8sf2 and sse_rsqrt4sf2.
+       Use VF1 mode iterator.
+       (sse_vmrsqrtv4sf2): Merge with *avx_vmrsqrtv4sf2.
+       (<smaxmin:code><mode>3): Use VF mode iterator.
+       (*<smaxmin:code><mode>3_finite): Merge with
+       *avx_<smaxmin:code><mode>3_finite.  Use VF mode iterator.
+       (*<smaxmin:code><mode>3): Merge with *avx_<smaxmin:code><mode>3.
+       (<sse>_vm<smaxmin:code><mode>2): Merge with
+       *avx_vm<smaxmin:code><mode>2.  Use VF_128 mode iterator.
+       (*ieee_smin<mode>3): Merge with *avx_ieee_smin<mode>3.  Use VF
+       mode iterator.
+       (*ieee_smax<mode>3): Merge with *avx_ieee_smax<mode>3.  Use VF
+       mode iterator.
+       (sse3_addsubv2df3): Merge with *avx_addsubv2df3.
+       (sse3_addsubv4sf3): Merge with *avx_addsubv4sf3.
+       (sse3_h<plusminus_insn>v2df3): Merge with *avx_h<plusminus_insn>v2df3.
+       (sse3_h<plusminus_insn>v4sf3): Merge with *avx_h<plusminus_insn>v4sf3.
+       (avx_cmp<mode>3): Rename from avx_cmp<ssemodesuffix><mode>3.  Use
+       VF mode iterator.
+       (avx_vmcmp<mode>3): Rename from avx_cmp<ssescalarmodesuffix><mode>3.
+       Use VF_128 mode iterator.
+       (<sse>_maskcmp<mode>3): Merge with *avx_maskcmp<mode>3.  Use VF
+       mode iterator.
+       (<sse>_vmmaskcmp<mode>3): Merge with *avx_vmmaskcmp<mode>3.  Use
+       VF_128 mode iterator.
+       (vcond<mode>): Use VF mode iterator.
+       * config/i386/predicates.md (sse_comparison_operator): Merge with
+       avx_comparison_float_operator.  Do not declare as special_predicate.
+       * config/i386/i386.c (struct builtin_description): Update for renamed
+       compare patterns.
+       (ix86_expand_args_builtin): Ditto.
+       (ix86_expand_sse_compare_mask): Ditto.
+
+2011-04-06  Richard Guenther  <rguenther@suse.de>
+
+       * tree-inline.c (estimate_num_insns): For calls simply account
+       for all passed arguments and a used return value.
+
+2011-04-06  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/47663
+       * cgraph.h (struct cgraph_edge): Add call_stmt_size and
+       call_stmt_time fields.
+       (cgraph_edge_inlinable_p): Declare.
+       (cgraph_edge_recursive_p): New inline function.
+       * cgraph.c (cgraph_create_edge_1): Initialize call_stmt_size.
+       (cgraph_clone_edge): Copy it.
+       * ipa-inline.c (cgraph_estimate_edge_time): New function.
+       Account for call stmt time.
+       (cgraph_estimate_time_after_inlining): Take edge argument.
+       (cgraph_estimate_edge_growth): Account call stmt size.
+       (cgraph_estimate_size_after_inlining): Take edge argument.
+       (cgraph_mark_inline_edge): Adjust.
+       (cgraph_check_inline_limits): Likewise.
+       (cgraph_recursive_inlining_p): Remove.
+       (cgraph_edge_badness): Use cgraph_edge_recursive_p.
+       (cgraph_decide_recursive_inlining): Take edge argument and
+       adjust.
+       (cgraph_decide_inlining_of_small_functions): Do not avoid
+       diags for recursive inlining here.
+       (cgraph_flatten): Adjust.
+       (cgraph_decide_inlining_incrementally): Likewise.
+       (estimate_function_body_sizes): Remove call cost handling.
+       (compute_inline_parameters): Initialize caller edge call costs.
+       (cgraph_estimate_edge_growth): New function.
+       (cgraph_estimate_growth): Use it.
+       (cgraph_edge_badness): Likewise.
+       (cgraph_check_inline_limits): Take an edge argument.
+       (cgraph_decide_inlining_of_small_functions): Adjust.
+       (cgraph_decide_inlining): Likewise.
+       * tree-inline.c (estimate_num_insns): Only account for call
+       return value if it is used.
+       (expand_call_inline): Avoid diagnostics on recursive inline
+       functions here.
+       * lto-cgraph.c (lto_output_edge): Output edge call costs.
+       (input_edge): Input edge call costs.
+
+2011-04-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+       * config/alpha/osf5.h (MAX_OFILE_ALIGNMENT): Define.
+
+2011-04-06  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+       * doc/invoke.texi (Spec Files): Fix typo.
+
+2011-04-06  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * profile.c (branch_prob): Move declaration of local variable.  Remove
+       obsolete ??? comment.  Expand the location explicitly instead of using
+       the LOCATION_FILE and LOCATION_LINE macros.
+
+2011-04-06  Wei Guozhi  <carrot@google.com>
+
+       PR target/47855
+       * config/arm/arm.md (arm_cmpsi_insn): Compute attr "length".
+       (arm_cond_branch): Likewise.
+       (arm_cond_branch_reversed): Likewise.
+       (arm_jump): Likewise.
+       (push_multi): Likewise.
+       * config/arm/constraints.md (Py): New constraint.
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
+       PR bootstrap/48471
+       * dbxout.c (debug_nesting, symbol_queue, symbol_queue_index):
+       Move these...
+       (symbol_queue_size, DBXOUT_DECR_NESTING): ...and these...
+       (DBXOUT_DECR_NESTING_AND_RETURN): ...and this under
+       #ifdef DBX_DEBUGGING_INFO.
+
+2011-04-05  Bernd Schmidt  <bernds@codesourcery.com>
+
+       PR bootstrap/48403
+       * haifa-sched.c (schedule_block): Increment cycle_issued_insns only
+       if old and new states differ.
+
+2011-04-05  Joseph Myers  <joseph@codesourcery.com>
+
+       * config/m68k/m68k.c (m68k_handle_option): Don't handle OPT_m5200,
+       OPT_m5206e, OPT_m528x, OPT_m5307, OPT_m5407 and OPT_mcfv4e.
+       * config/m68k/m68k.h (OPTION_DEFAULT_SPECS, ASM_CPU_SPEC): Don't
+       handle -m5200, -m5206e, -m528x, -m5307, -m5407 and -mcfv4e.
+       * config/m68k/m68k.opt (m5200, m5206e, m528x, m5307, m5407,
+       mcfv4e): Use Alias.
+       * config/m68k/t-mlibs (MULTILIB_MATCHES): Don't map legacy
+       ColdFire options to -mcpu= options.
+
+2011-04-05  Jeff Law  <law@redhat.com>
+
+       * tree-ssa-threadupdate.c (determine_bb_domination_status): Always
+       check if BB is a successor of LOOP->header and return
+       NONDOMINATING if it is not, regardless of ENABLE_CHECKING.
+
+2011-04-05  Steven Bosscher  <steven@gcc.gnu.org>
+
+       * cprop.c (struct reg_use): Remove.
+       (reg_use_table): Make an array of RTX.
+       (find_used_regs, constprop_register, local_cprop_pass,
+       bypass_block): Simplify users of reg_use_table.
+       (cprop_insn): Likewise.  Iterate if copy propagation succeeded
+       on one of the uses found by find_used_regs.
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
+       PR bootstrap/48469
+       * combine.c (combine_instructions): #ifdef AUTO_INC_DEC links
+       declaration.
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * combine.c (combine_instructions) [AUTO_INC_DEC]: Declare links
+       as an rtx.
+       (try_combine) [AUTO_INC_DEC]: Declare a local link rtx.
+
+2011-04-05  Steven Bosscher  <steven@gcc.gnu.org>
+
+       PR middle-end/48441
+       * cprop.c (one_cprop_pass): Do not mark_oprs_set of deleted insns.
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * combine.c: Include obstack.h.
+       (struct insn_link): Define.
+       (uid_log_links): Adjust type.
+       (FOR_EACH_LOG_LINK): New macro.
+       (insn_link_obstack): Declare.
+       (alloc_insn_link): Define.
+       (create_log_links): Call it.  Use FOR_EACH_LOG_LINK and adjust
+       type of link variables.
+       (find_single_use, insn_a_feeds_b, combine_instructions): Likewise.
+       (try_combine, record_promoted_values, distribute_notes): Likewise.
+       (distribute_links): Likewise.  Tweak prototype.
+       (clear_log_links): Delete.
+       (adjust_for_new_dest): Call alloc_insn_link.
+       * Makefile.in (combine.o): Depend on $(OBSTACK_H).
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * gcse.c (modify_mem_list): Convert to an array of VECs.
+       (canon_modify_mem_list, compute_transp): Tweak formatting.
+       (alloc_gcse_mem): Likewise.  Adjust for modify_mem_list change.
+       (load_killed_in_block_p): Likewise.
+       (record_last_mem_set_info): Likewise.
+       (clear_modify_mem_tables): Likewise.
+
+2011-04-05  Tom de Vries  <tom@codesourcery.com>
+
+       PR middle-end/48461
+       * function.c (emit_use_return_register_into_block): Only define if
+       HAVE_return.
+
+2011-04-05  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * stor-layout.c (self_referential_size): Fix 2010-07-13 commit.
+
+2011-04-05  Joseph Myers  <joseph@codesourcery.com>
+
+       * config/rx/rx-opts.h: New.
+       * config/rx/rx.c (rx_cpu_type): Remove.
+       (rx_handle_option): Don't assert that global structures are in
+       use.  Access variables via opts pointer.  Defer most handling of
+       OPT_mint_register_.  Use error_at.
+       (rx_option_override): Handle deferred OPT_mint_register_ here.
+       * config/rx/rx.h (enum rx_cpu_types): Move to rx-opts.h.
+       * config/rx/rx.opt (config/rx/rx-opts.h: New HeaderInclude.
+       (mcpu=): Use Enum and specifiy rx_cpu_type with Var.
+       (rx_cpu_types): New Enum and EnumValue entries.
+       (mint-register=): Use Defer and use Var accordingly.
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * debug.h (debug_flush_symbol_queue, debug_queue_symbol): Delete.
+       (debug_free_queue, debug_nesting, symbol_queue_index): Delete.
+       * final.c (debug_flush_symbol_queue, debug_queue_symbol):
+       Move these...
+       (debug_free_queue, debug_nesting, symbol_queue_index):
+       ...and these...
+       * dbxout.c: ...to here.  Make static.
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * gcse.c (modify_pair): Define.  Define a VEC of it.
+       (canon_modify_mem_list): Convert to an array of VECs.
+       (free_insn_expr_list_list): Delete.
+       (clear_modify_mem_tables): Call VEC_free instead.
+       (record_last_mem_set_info): Don't modify canon_modify_mem_list.
+       (alloc_gcse_mem): Adjust for canon_modify_mem_list change.
+       (canon_list_insert, compute_transp): Likewise.
+
+2011-04-05  Tom de Vries  <tom@codesourcery.com>
+
+       PR target/43920
+       * config/arm/arm.h (BRANCH_COST): Set to 1 for Thumb-2 when optimizing
+       for size.
+
+2011-04-05  Tom de Vries  <tom@codesourcery.com>
+
+       PR target/43920
+       * function.c (emit_use_return_register_into_block): New function.
+       (thread_prologue_and_epilogue_insns): Use
+       emit_use_return_register_into_block.
+
+2011-04-05  Tom de Vries  <tom@codesourcery.com>
+
+       PR target/43920
+       * cfgcleanup.c (flow_find_cross_jump): Don't count USE or CLOBBER as
+       insn.
+
+2011-04-05  Tom de Vries  <tom@codesourcery.com>
+
+       * cfgcleanup.c (try_crossjump_bb): Remove 2 superfluous variables.
+
+2011-04-05  Yufeng Zhang  <yufeng.zhang@arm.com>
+
+        * config/arm/arm.md (define_constants for unspec): Replace with
+        define_c_enum.
+        (define_constants for unspecv): Replace with define_c_enum.
+        * config/arm/neon.md (define_constants for unspec): Replace with
+        define_c_enum.
+
+2011-04-04  Richard Henderson  <rth@redhat.com>
+
+       PR bootstrap/48400
+       * dwarf2out.c (output_line_info): Always emit line info from
+       at least one section.
+       (dwarf2out_init): Create text_section_line_info here ...
+       (set_cur_line_info_table): ... not here.
+
+2011-04-04  Vladimir Makarov  <vmakarov@redhat.com>
+
+       PR target/48380
+       * ira.c (ira): Call grow_reg_equivs when fix_reg_equiv_init is
+       not called.
+
+       * ira-emit.c (emit_move_list): Update reg_equiv_init insn list.
+
+2011-04-04  Steven Bosscher  <steven@gcc.gnu.org>
+
+       * cprop.c (struct expr): Split 'expr' field in 'dest' and 'src'.
+       (expr_equiv_p): Remove.
+       (insert_set_in_table): Look at <dest, src> pair instead of expr.
+       (hash_scan_set): Update call to insert_set_in_table.
+       (dump_hash_table): Dump <dest, src> pair.
+       (lookup_set): Simplify.  Lookup <dest, src> pair.
+       (compute_transp): Remove, fold heavily simplified code into...
+       (compute_local_properties): ...here.  Expect COMP and TRANSP
+       unconditionally.
+       (find_avail_set): Take set directly from struct expr.
+       (find_bypass-set): Likewise.
+       (bypass_block): Likewise.
+       (cprop_insn): Likewise.  Remove redundant INSN_P test.
+
+       * cprop.c (implicit_set_cond_p): Assume nothing about COND, move
+       checks on form of COND from find_implicit_sets to here.
+       (find_implicit_sets): Cleanup control flow. Split critical edges
+       if it exposes implicit sets.  Allocate/resize implicit_sets as
+       necessary.
+       (one_cprop_pass): Only delete unreachable blocks if local_cprop_pass
+       changed something.  Run df_analyze after find_implicit_sets if any
+       edges were split.  Do not allocate implicit_sets here.
+
+       * cprop.c: s/gcse/cprop/ everywhere except for flag_gcse.
+       (gcse_obstack): Renamed to cprop_obstack.
+       (GNEW, GNEWVEC, GNEWVAR): Remove.
+       (gmalloc): Remove.
+       (alloc_hash_table): Use XNEWVAR instead of GNEWVAR.
+       (GOBNEW, GOBNEWVAR): Adjust for gcse_obstack renaming.
+       (gcse_alloc): Likewise, and rename to cprop_alloc.
+       (alloc_gcse_men, free_gcse_mem): Remove.
+       (gcse_constant_p): Rename to cprop_constant_p, and adjust all callers.
+       (compute_hash_table_work): Allocate and free reg_set_bitmap here.
+       (one_cprop_pass): Likewise. Adjust for gcse_obstack renaming.
+
+       * cprop.c (oprs_not_set_p): Remove.
+       (mark_set, mark_clobber): Remove.
+       (mark_oprs_set): Rewrite using DF_INSN_INFO_DEFS cache.
+       (reg_not_set_p): New function.
+       (find_avail_set): Use reg_not_set_p instead of oprs_not_set_p.
+       (cprop_insn): Likewise.
+       (cprop_jump): Use FOR_EACH_EDGE.
+
+2011-04-04  Bernd Schmidt  <bernds@codesourcery.com>
+
+       PR bootstrap/48403
+       * haifa-sched.c (nonscheduled_insns_begin): New static variable.
+       (rank_for_schedule): Use scheduled_insns vector instead of
+       last_scheduled_insn.
+       (ok_for_early_queue_removal): Likewise.
+       (queue_to_ready): Search forward in nonscheduled_insns_begin if
+       we have a dbg_cnt.
+       (choose_ready): Likewise.
+       (commit_schedule): Use VEC_iterate.
+       (schedule_block): Initialize nonscheduled_insns_begin.  If we have
+       a dbg_cnt, use it and ensure the first insn is in the ready list.
+       (haifa_sched_init): Allocate scheduled_insns.
+       (sched_extend_ready_list): Don't allocate it; reserve space.
+       (haifa_sched_finish): Free it.
+
+2011-04-04  Joseph Myers  <joseph@codesourcery.com>
+
+       * optc-gen.awk: Always remove type from Variable entry before
+       recording in var_seen.
+
+2011-04-04  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * cfghooks.c (tidy_fallthru_edges): Add ??? comment.
+       * tree-inline.c (delete_unreachable_blocks_update_callgraph): Remove
+       call to tidy_fallthru_edges.
+
+2011-04-04  Joseph Myers  <joseph@codesourcery.com>
+
+       * doc/options.texi (ToLower): Document.
+       * opt-functions.awk (switch_bit_fields): Initialize cl_tolower
+       field.
+       * opts-common.c (decode_cmdline_option): Handle cl_tolower.
+       * opts.h (cl_option): Add cl_tolower field.
+       * config/rx/rx.c (rx_handle_option): Use strcmp of -mcpu=
+       arguments with lowercase strings.
+       * config/rx/rx.opt (mcpu=): Add ToLower.
+       * config/rx/t-rx (MULTILIB_MATCHES): Don't handle uppercase -mcpu=
+       argument.
+
+2011-04-04  Richard Sandiford  <richard.sandiford@linaro.org>
+
+       * config/pdp11/pdp11.h (IRA_COVER_CLASSES): Delete.
+
+2011-04-04  Richard Sandiford  <richard.sandiford@linaro.org>
+
+       * config/vax/vax.c: Include reload.h.
+
+2011-04-04  Anatoly Sokolov  <aesok@post.ru>
+
+       * config/sparc/sparc.h (PREFERRED_RELOAD_CLASS): Remove.
+       * config/sparc/sparc.c (TARGET_PREFERRED_RELOAD_CLASS): Define.
+       (sparc_preferred_reload_class): New function.
+
+2011-04-04  Jakub Jelinek  <jakub@redhat.com>
+
+       PR debug/48401
+       * cfgexpand.c (expand_gimple_basic_block): Avoid useless assignment.
+       Use PAT_VAR_LOCATION_LOC instead of INSN_VAR_LOCATION_LOC.
+
+2011-04-03  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * tree.h (struct tree_const_decl): Inherit from tree_decl_common.
+       * tree.c (initialize_tree_contains_struct): Adjust accordingly.
+
+2011-04-03  Anatoly Sokolov  <aesok@post.ru>
+
+       * config/avr/avr.h (ASM_OUTPUT_BSS): Remove.
+       (ASM_OUTPUT_ALIGNED_BSS): Define.
+
+2011-04-03  Michael Matz  <matz@suse.de>
+
+       * lto-streamer.h (struct lto_streamer_cache_d): Remove offsets
+       and next_slot members.
+       (lto_streamer_cache_insert, lto_streamer_cache_insert_at,
+       lto_streamer_cache_lookup, lto_streamer_cache_get): Adjust prototypes.
+       (lto_streamer_cache_append): Declare.
+       * lto-streamer.c (lto_streamer_cache_add_to_node_array): Use
+       unsigned index, remove offset parameter, ensure that we append
+       or update existing entries.
+       (lto_streamer_cache_insert_1): Use unsigned index, remove offset_p
+       parameter, update next_slot for append.
+       (lto_streamer_cache_insert): Use unsigned index, remove offset_p
+       parameter.
+       (lto_streamer_cache_insert_at): Likewise.
+       (lto_streamer_cache_append): New function.
+       (lto_streamer_cache_lookup): Use unsigned index.
+       (lto_streamer_cache_get): Likewise.
+       (lto_record_common_node): Don't test tree_node_can_be_shared.
+       (preload_common_node): Adjust call to lto_streamer_cache_insert.
+       (lto_streamer_cache_delete): Don't free offsets member.
+       * lto-streamer-out.c (eq_string_slot_node): Use memcmp.
+       (lto_output_string_with_length): Use lto_output_data_stream.
+       (lto_output_tree_header): Remove ix parameter, don't write it.
+       (lto_output_builtin_tree): Likewise.
+       (lto_write_tree): Adjust callers to above, don't track and write
+       offset, write unsigned index.
+       (output_unreferenced_globals): Don't emit all global vars.
+       (write_global_references): Use unsigned indices.
+       (lto_output_decl_state_refs): Likewise.
+       (write_symbol): Likewise.
+       * lto-streamer-in.c (lto_input_chain): Move earlier.
+       (input_function): Use unsigned index.
+       (input_alias_pairs): Don't read and then ignore all global vars.
+       (lto_materialize_tree): Remove ix_p parameter, don't read index,
+       don't pass it back, use lto_streamer_cache_append.
+       (lto_register_var_decl_in_symtab): Use unsigned index.
+       (lto_register_function_decl_in_symtab): Likewise.
+       (lto_get_pickled_tree): Don't read in or handle offset, read unsigned
+       index.
+       (lto_get_builtin_tree): Don't read index, use
+       lto_streamer_cache_append.
+       (lto_read_tree): Adjust call to lto_materialize_tree.
+
+       * ipa-inline.c (cgraph_edge_badness): Move growth calculaton,
+       don't use function calls in arguments to MIN.
+
+       * varasm.c (decl_binds_to_current_def_p): Don't check TREE_PUBLIC
+       twice.
+
+       * gimple.c (gimple_type_leader_entry): Mark deletable.
+
+2011-04-03  Alan Modra  <amodra@gmail.com>
+
+       * dwarf2out.c (mem_loc_descriptor): Recurse on LO_SUM.
+
+2011-04-03  Michael Matz  <matz@suse.de>
+
+       * tree.c (free_lang_data_in_decl): Zero DECL_VINDEX if it's not
+       an integer.
+       * tree.h (tree_decl_non_common.vindex): Adjust comment.
+
+2011-04-03  Michael Matz  <matz@suse.de>
+
+       * cgraphbuild.c (record_reference): Canonicalize constructor values.
+       * gimple-fold.c (canonicalize_constructor_val): Accept being called
+       without function context.
+       * cgraphunit.c (cgraph_finalize_compilation_unit): Clear
+       current_function_decl and cfun.
+
+2011-04-03  Michael Matz  <matz@suse.de>
+
+       * tree.c (decl_init_priority_insert): Don't create entry for
+       default priority.
+       (decl_fini_priority_insert): Ditto.
+       (fields_compatible_p, find_compatible_field): Remove.
+       * tree.h (fields_compatible_p, find_compatible_field): Remove.
+       * gimple.c (gimple_compare_field_offset): Adjust block comment.
+
+2011-04-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+       * combine.c (try_combine): Remove useless local variable.
+
+2011-04-03  Richard Guenther  <rguenther@suse.de>
+           Ira Rosen  <ira.rosen@linaro.org>
+
+       * tree-if-conv.c (memrefs_read_or_written_unconditionally): Strip all
+       non-variable offsets and compare the remaining bases of the two
+       accesses instead of looking for exact same data-ref.
+
+2011-04-02  Kai Tietz  <ktietz@redhat.com>
+
+       PR target/48416
+       * i386.c (ix86_function_arg_boundary): Fix printf formatter.
+
+       * i386.c (ix86_is_msabi_thiscall): New helper function.
+       (ix86_is_type_thiscall): New helper function.
+       (ix86_comp_type_attributes): Handle thiscall for method-functions
+       special.
+       (init_cumulative_args): Likewise.
+       (find_drap_reg): Likewise.
+       (ix86_static_chain): Likewise.
+       (x86_this_parameter): Likewise.
+       (x86_output_mi_thunk): Likewise.
+
+2011-04-01  Olivier Hainque  <hainque@adacore.com>
+           Nicolas Setton  <setton@adacore.com>
+           Eric Botcazou  <ebotcazou@adacore.com>
+
+       * dwarf2out.c (dwarf_attr_name): Map DW_AT_GNAT_descriptive_type.
+       (add_gnat_descriptive_type_attribute): New function.
+       (gen_array_type_die): Call it.
+       (gen_enumeration_type_die): Likewise.
+       (gen_struct_or_union_type_die): Likewise.
+       (modified_type_die): Likewise.
+       * langhooks.h (lang_hooks_for_types): New descriptive_type hook.
+       * langhooks-def.h (LANG_HOOKS_DESCRIPTIVE_TYPE): Default to NULL.
+       (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add LANG_HOOKS_DESCRIPTIVE_TYPE.
+
+2011-04-01  Jakub Jelinek  <jakub@redhat.com>
+
+       PR bootstrap/48148
+       * dwarf2out.c (resolve_addr): Don't call force_decl_die
+       if DECL_EXTERNAL has non-NULL DECL_ABSTRACT_ORIGIN.
+
+       Revert:
+       2011-03-17  Richard Guenther  <rguenther@suse.de>
+
+       PR bootstrap/48148
+       * lto-cgraph.c (input_overwrite_node): Clear the abstract
+       origin for decls in other ltrans units.
+       (input_varpool_node): Likewise.
+
+2011-04-01  Jakub Jelinek  <jakub@redhat.com>
+
+       PR middle-end/48335
+       * expr.c (expand_assignment): Handle all possibilities
+       if TO_RTX is CONCAT.
+       * expmed.c (store_bit_field_1): Avoid trying to create invalid SUBREGs.
+       (store_split_bit_field): If SUBREG_REG (op0) or
+       op0 itself has smaller mode than word, return it
+       for offset 0 and const0_rtx for out-of-bounds stores.
+       If word is const0_rtx, skip it.
+
+2011-04-01  Naveen H.S  <naveen.S@kpitcummins.com>
+
+       * config/h8300/h8300.c (print_operand_address): Rename to...
+       (h8300_print_operand_address): ...this. Make static. Adjust comments.
+       Call h8300_print_operand and h8300_print_operand_address instead of
+       print_operand and print_operand_address. Declare.
+       (print_operand): Renake to...
+       (h8300_print_operand): ...this. Make static. Adjust comments.
+       Call h8300_print_operand instead of print_operand. Declare.
+       (h8300_print_operand_punct_valid_p): Moved from h8300.h file.
+       (h8300_register_move_cost): Likewise.
+       (TARGET_PRINT_OPERAND_PUNCT_VALID_P, TARGET_PRINT_OPERAND
+       TARGET_PRINT_OPERAND_ADDRESS, TARGET_REGISTER_MOVE_COST): Define.
+       * config/h8300/h8300.h (PRINT_OPERAND_ADDRESS, PRINT_OPERAND
+       PRINT_OPERAND_PUNCT_VALID_P, REGISTER_MOVE_COST): Delete.
+       * config/h8300/h8300-protos.h (print_operand): Delete.
+       (print_operand_address): Delete.
+
+2011-04-01  Richard Henderson  <rth@redhat.com>
+
+       PR 48400
+       * dwarf2out.c (dwarf2out_source_line): Disable discriminators
+       in strict mode before dwarf4.  Re-order tests to early out
+       before switching sections.
+
+2011-04-01  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * config/h8300/constraints.md: New file.
+       * config/h8300/h8300.md: Include it.  Use satisfies_constraint_J,
+       satisfies_constraint_L, and satisfies_constraint_N for peephole2s.
+       (*tst_extzv_1_n, *tstsi_variable_bit_qi): Use satisfies_constraint_U.
+       * config/h8300/predicates.md (bit_operand): Likewise.
+       (incdec_operand): Use satisfies_constraint_M and
+       satisfies_constraint_O.  Don't use C code block.
+       * config/h8300/h8300-protos.h (h8300_reg_class_from_letter): Delete.
+       * config/h8300/h8300.c (h8300_reg_class_from_letter): Delete.
+       (compute_mov_length): Use satisfies_constraint_G.
+       (fix_bit_operand): Use satisfies_constraint_U.
+       * config/h8300/h8300.h (REG_CLASS_FROM_LETTER): Delete.
+       (CONST_OK_FOR_I, CONST_OK_FOR_J, CONST_OK_FOR_L): Delete.
+       (CONST_OK_FOR_M, CONST_OK_FOR_N, CONST_OK_FOR_O): Delete.
+       (CONST_OK_FOR_Ppositive, CONST_OK_FOR_Pnegative): Delete.
+       (CONST_OK_FOR_P, CONSTRAINT_LEN_FOR_P): Delete.
+       (CONST_OK_FOR_CONSTRAINT_P, CONST_OK_FOR_LETTER_P): Delete.
+       (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
+       (OK_FOR_Q, OK_FOR_R, OK_FOR_S, OK_FOR_T, OK_FOR_U, OK_FOR_WU): Delete.
+       (OK_FOR_W, CONSTRAINT_LEN_FOR_W, OK_FOR_Y2, OK_FOR_Y0): Delete.
+       (OK_FOR_Y, CONSTRAINT_LEN_FOR_Y, OK_FOR_Z): Delete.
+       (EXTRA_CONSTRAINT_STR, CONSTRAINT_LEN): Delete.
+       (EXTRA_MEMORY_CONSTRAINT): Delete.
+
 2011-04-01  Andrew Pinski  <pinskia@gmail.com>
            Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 
        * config.gcc (*-*-mingw*): Allow as option the
        posix threading model.
-       * config/i386/mingw32.h ( SPEC_PTHREAD1,  SPEC_PTHREAD2):
+       * config/i386/mingw32.h (SPEC_PTHREAD1,  SPEC_PTHREAD2):
        New macros defined dependent to TARGET_USE_PTHREAD_BY_DEFAULT
        definition.
        (CPP_SPEC): Add pthread/no-pthread handling.
        New define to enable use of library pthread by default.
        * config/i386/mingw.opt (pthread): New driver option.
        (no-pthread): New driver option.
-       * config/i386/cygming.opt: Make sure trailing empty line
-       is retained.
+       * config/i386/cygming.opt: Make sure trailing empty line is retained.
        * config/i386/mingw-w64.opt: Likewise.
 
 2011-04-01  Gary Funck <gary@intrepid.com>
 
 2011-03-31  Michael Matz  <matz@suse.de>
 
-       * builtins.c (build_va_arg_indirect_ref): Use
-       build_simple_mem_ref_loc.
+       * builtins.c (build_va_arg_indirect_ref): Use build_simple_mem_ref_loc.
 
 2011-03-31  Anatoly Sokolov  <aesok@post.ru>
 
 
        * reload1.c (elimination_effects): Fix typo in recent change.
 
-       * tree-ssa-forwprop.c (forward_propagate_into_cond): Avoid 
+       * tree-ssa-forwprop.c (forward_propagate_into_cond): Avoid
        typo potentially leading to null pointer dereference.
 
        * caller-save.c (new_saved_hard_reg): Eliminate return value.
        * collect2.c (main): Don't use TARGET_VERSION.
        * mips-tdump.c (main): Don't use TARGET_VERSION.
        * mips-tfile.c (main): Don't use TARGET_VERSION.
-       * config.gcc (powerpc-wrs-vxworksae): Don't use
-       rs6000/vxworksae.h.
+       * config.gcc (powerpc-wrs-vxworksae): Don't use rs6000/vxworksae.h.
        * config/rs6000/vxworksae.h: Remove.
        * config/alpha/alpha.h (TARGET_VERSION): Remove.
        * config/alpha/freebsd.h (TARGET_VERSION): Remove.
        * doc/options.texi (NegativeAlias): Document.
        (Alias): Mention NegativeAlias.
        * opt-functions.awk: Handle NegativeAlias.
-       * optc-gen.awk: Disallow NegativeAlias with multiple Alias
-       arguments.
+       * optc-gen.awk: Disallow NegativeAlias with multiple Alias arguments.
        * opts-common.c (decode_cmdline_option): Handle CL_NEGATIVE_ALIAS.
        * opts.h (CL_NEGATIVE_ALIAS): Define.
        * config/rs6000/rs6000.c (rs6000_parse_yes_no_option): Remove.
        changes.
        * avr/avr.h (LEGITIMIZE_RELOAD_ADDRESS): Corresponding changes.
        * xtensa/xtensa.c (fixup_subreg_mem): Corresponding changes.
-       * mn10300/mn10300.c (mn10300_secondary_reload): Corresponding
-       changes.
+       * mn10300/mn10300.c (mn10300_secondary_reload): Corresponding changes.
        * m68k/m68k.c (emit_move_sequence): Corresponding changes.
        * arm/arm.c (arm_reload_in_hi, arm_reload_out_hi): Corresponding
        changes.
 
        PR driver/48208
        * config/c.opt (F): Added 'Driver' to -F option.
+
        PR driver/48260
        * config/darwin-driver.c (darwin_driver_init): Add '-arch' to
          handler function.
        * config/rx/rx.md: Add peepholes and patterns to combine
        extending loads and simple arithmetic instructions.
        * config/rx/rx.h (ADJUST_INSN_LENGTH): Define.
-        * config/rx/rx-protos.h (rx_adjust_insn_length): Prototype.
-        * config/rx/rx.c (rx_is_legitimate_address): Allow QI and HI
+       * config/rx/rx-protos.h (rx_adjust_insn_length): Prototype.
+       * config/rx/rx.c (rx_is_legitimate_address): Allow QI and HI
        modes to use pre-decrement and post-increment addressing.
-        (rx_is_restricted_memory_address): Add range checking of REG+INT
+       (rx_is_restricted_memory_address): Add range checking of REG+INT
        addresses.
-        (rx_print_operand): Add support for %Q.
-        Fix handling of %Q.
-        (rx_memory_move_cost): Adjust cost of stores.
-        (rx_adjust_insn_length): New function.
+       (rx_print_operand): Add support for %Q.  Fix handling of %Q.
+       (rx_memory_move_cost): Adjust cost of stores.
+       (rx_adjust_insn_length): New function.
 
 2011-03-30  Jakub Jelinek  <jakub@redhat.com>