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register variable)
gcc:
2008-07-17 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/36753
* fwprop.c (use_killed_between): Don't shortcut
single-definition global registers.
gcc/testsuite:
2008-07-17 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/36753
* gcc.target/i386/pr36753.c: New.
From-SVN: r137913
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* df-problems.c (df_set_note): Avoid C++ keywords.
* df-scan.c (df_ref_change_reg_with_loc_1): Likewise.
* dse.c (record_store, remove_useless_values): Likewise.
* emit-rtl.c (gen_reg_rtx, update_reg_offset, gen_rtx_REG_offset,
gen_reg_rtx_offset, operand_subword, change_address_1,
change_address, adjust_address_1, offset_address,
widen_memory_access, emit_copy_of_insn_after): Likewise.
* explow.c (round_push, allocate_dynamic_stack_space): Likewise.
* fwprop.c (should_replace_address, propagate_rtx_1,
propagate_rtx, try_fwprop_subst, forward_propagate_and_simplify):
Likewise.
* gcse.c (cprop_jump, find_implicit_sets, bypass_block,
gcse_emit_move_after, update_ld_motion_stores): Likewise.
* lcm.c (compute_insert_delete, pre_edge_lcm,
compute_rev_insert_delete, pre_edge_rev_lcm): Likewise.
* lower-subreg.c (resolve_reg_notes): Likewise.
* mode-switching.c (optimize_mode_switching): Likewise.
From-SVN: r137848
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* df.h (struct df_ref): Replace 'insn' field with 'insn_info' field.
(DF_REF_INSN_INFO): New.
(DF_REF_INSN, DF_REF_INSN_UID): Rewrite macros using DF_REF_INSN_INFO.
(DF_REF_IS_ARTIFICIAL): Artificial refs are now identified as refs
with a NULL DF_REF_INSN_INFO.
(DF_INSN_INFO_GET, DF_INSN_INFO_SET): Renamed from DF_INSN_GET and
DF_INSN_SET.
(DF_INSN_INFO_LUID, DF_INSN_INFO_DEFS, DF_INSN_INFO_USES,
DF_INSN_INFO_EQ_USES): New.
(DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES, DF_INSN_EQ_USES,
DF_INSN_UID_LUID, DF_INSN_UID_DEFS, DF_INSN_UID_USES,
DF_INSN_UID_EQ_USES): Rewrite using DF_INSN_INFO_* macros.
* df-core.c: Update comment for above changes.
(df_insn_debug_regno): Use DF_INSN_INFO_GET instead of INSN_UID and
DF_INSN_UID_* macros.
(df_ref_debug): Check for NULL DF_REF_INSN_INFO.
* df-scan.c (df_ref_record): Take a df_insn_info instead of an
insn rtx. Update all callers.
(df_def_record_1, df_defs_record, df_uses_record, df_get_call_refs,
df_ref_create_structure, df_insn_refs_collect): Likewise.
(df_ref_equal_p): Compare DF_REF_INSN_INFO pointers for the refs.
* df-problems.c (df_chain_dump): Test for non-NULL DF_REF_INSN_INFO.
(df_live_bb_local_compute): Retrieve DF_INSN_INFO, use DF_INSN_INFO_*
macros to access the insn refs.
(df_chain_top_dump, df_chain_bottom_dump, df_byte_lr_alloc): Likewise.
* fwprop.c (use_killed_between): Use DF_REF_INSN accessor macro.
(all_uses_available): Retrieve DF_INSN_INFO for def_insn, and use it
for accessing the refs.
(try_fwprop_subst): Likewise.
* ddg.c (add_cross_iteration_register_deps): Use DF_REF_INSN macro.
* web.c (union_defs): Retrieve DF_INSN_INFO for def_insn, and use it
for accessing the refs.
* loop-invariant.c (invariant_for_use): Use DF_REF_BB macro.
(check_dependencies): Use DF_INSN_INFO_GET, use DF_INSN_INFO_* macros
to look at the insn refs.
(record_uses): Likewise.
* dce.c (deletable_insn_p): Don't tolerate artificial DEFs in this
function anymore.
(mark_artificial_uses): Don't mark_insn for artificial refs.
(mark_reg_rependencies): Likewise.
* doc/rtl.texi: Remove documentation of ADDRESSOF.
From-SVN: r136885
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* see.c (see_analyse_one_def): Do not look for REG_LIBCALL and
REG_RETVAL notes.
(see_update_relevancy): Likewise.
* fwprop.c (try_fwprop_subst): Likewise.
* rtlanal.c (noop_move_p): Likewise.
* builtins.c (expand_buitlin_mathfn): Don't try to add REG_EQUAL
notes to non-existing libcall blocks.
* cse.c (cse_insn): Change prototype. Don't update libcall notes.
Remove orig_set.
(cse_extended_basic_block): Don't track libcall and no-conflict notes.
(dead_libcall_p): Remove.
(delete_trivially_dead_insns): Don't use it.
* web.c (union_defs): Remove comment about keeping nops.
* gcse.c (hash_scan_insn): Don't take libcall pointers.
(compute_hash_table_work): Don't track libcall notes.
(do_local_cprop): Don't take libcall pointers. Don't update
libcall notes.
(adjust_libcall_notes): Deleted.
(local_cprop_pass): Remove stack for nested libcalls (which shouldn't
ever have existed in the first place).
(replace_store_insn): Don't try to remove libcall notes.
* lower-subreg.c (move_libcall_note, move_retval_note): Deleted.
(resolve_reg_notes): Don't call them.
(resolve_simple_move): Likewise.
(decompose_multiword_subregs): Remove block handling REG_RETVAL notes.
Don't remove REG_RETVAL notes.
* emit-rtl.c (try_split): Don't update libcall notes.
(emit_copy_of_insn_after): Dito.
* cselib.c (cselib_current_insn_in_libcall): Remove.
(cselib_process_insn): Don't set/clear it.
(new_elt_loc_list): Don't record it.
(cselib_init): Don't initialize it.
* cselib.c (struct elt_loc_list): Remove in_libcall field.
* loop-invariant.c (find_invariant_insn): Don't look for libcall
notes.
* sched-deps.c (sched_analyze_insn): Don't group libcall blocks.
(sched_analyze): Don't set up deps->libcall_block_tail_insn.
(init_deps): Don't initialize it.
* sched-int.h (struct deps): Rremove libcall_block_tail_insn field.
* combine.c (delete_noop_moves): Don't update libcall notes.
(can_combine_p): Remove now pointless #if 0 block.
(try_combine): Remove another obsolete #if 0 block.
(distribute_notes): Don't distribute libcall notes.
* reg-notes.def (REG_LIBCALL, REG_RETVAL): Remove.
* dce.c (libcall_dead_p): Remove.
(delete_unmarked_insns): Don't handle libcall blocks.
(preserve_libcall_for_dce): Remove.
(prescan_insns_for_dce): Don't special-case libcall block insns.
* reload1 (reload): Don't handle libcall notes.
* doc/rtl.texi (REG_LIBCALL, REG_RETVAL, REG_LIBCALL_ID): Remove
documentation.
From-SVN: r136861
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2008-04-24 Richard Sandiford <rsandifo@nildram.co.uk>
Kenneth Zadeck <zadeck@naturalbridge.com>
* dbgcnt.def (ra_byte_scan): Added.
* dbgcnt.c (dbg_cnt): Added code to print message to dump_file
when the last hit happens for a counter.
* timevar.def (TV_DF_BYTE_LR): New variable.
* tree-pass.h (pass_fast_rtl_byte_dce): New pass.
* passes.c (pass_fast_rtl_byte_dce): New pass.
* fwprop.c (update_df): Added mode to call df_ref_create.
Renamed DF_REF_WIDTH and DF_REF_OFFSET to DF_REF_EXTRACT_WIDTH and
DF_REF_EXTRACT_OFFSET.
* df.h (DF_BYTE_LR, DF_BYTE_LR_BB_INFO, DF_BYTE_LR_IN,
DF_BYTE_LR_OUT, df_byte_lr): New macro.
(df_mm): New enum.
(df_ref_extract): Added mode field.
(DF_REF_WIDTH, DF_REF_OFFSET) Renamed to DF_REF_EXTRACT_WIDTH and
DF_REF_EXTRACT_OFFSET.
(DF_REF_EXTRACT_MODE): New macro.
(df_byte_lr_bb_info): New structure.
(df_print_byte_regset, df_compute_accessed_bytes,
df_byte_lr_add_problem, df_byte_lr_get_regno_start,
df_byte_lr_get_regno_len, df_byte_lr_simulate_defs,
df_byte_lr_simulate_uses,
df_byte_lr_simulate_artificial_refs_at_top,
df_byte_lr_simulate_artificial_refs_at_end,
df_compute_accessed_bytes): New function.
(df_ref_create): Add parameter.
(df_byte_lr_get_bb_info): New inline function.
* df-scan.c (df_ref_record, df_uses_record,
df_ref_create_structure): Added mode parameter.
(df_ref_create, df_notes_rescan, df_ref_record, df_def_record_1,
df_defs_record, df_uses_record, df_get_conditional_uses,
df_get_call_refs, df_insn_refs_collect, df_bb_refs_collect,
df_entry_block_defs_collect, df_exit_block_uses_collect):
Added mode parameter to calls to df_ref_record, df_uses_record,
df_ref_create_structure.
(df_ref_equal_p, df_ref_compare): Added test for modes.
(df_ref_create_structure): Added code to set mode. Renamed
DF_REF_WIDTH and DF_REF_OFFSET to DF_REF_EXTRACT_WIDTH and
DF_REF_EXTRACT_OFFSET.
* df-core.c (df_print_byte_regset): New function.
* df-byte-scan.c: New file.
* df-problems.c (df_rd_transfer_function): Removed unnecessary
calls to BITMAP_FREE.
(df_byte_lr_problem_data, df_problem problem_BYTE_LR): New structure.
(df_byte_lr_get_regno_start, df_byte_lr_get_regno_len,
df_byte_lr_set_bb_info, df_byte_lr_free_bb_info,
df_byte_lr_check_regs, df_byte_lr_expand_bitmap,
df_byte_lr_alloc, df_byte_lr_reset, df_byte_lr_bb_local_compute,
df_byte_lr_local_compute, df_byte_lr_init,
df_byte_lr_confluence_0, df_byte_lr_confluence_n,
df_byte_lr_transfer_function, df_byte_lr_free,
df_byte_lr_top_dump, df_byte_lr_bottom_dump,
df_byte_lr_add_problem, df_byte_lr_simulate_defs,
df_byte_lr_simulate_uses,
df_byte_lr_simulate_artificial_refs_at_top,
df_byte_lr_simulate_artificial_refs_at_end): New function.
* dce.c (byte_dce_process_block): New function.
(dce_process_block): au is now passed in rather than computed
locally. Changed loops that look at artificial defs to not look
for conditional or partial ones, because there never are any.
(fast_dce): Now is able to drive byte_dce_process_block or
dce_process_block depending on the kind of dce being done.
(rest_of_handle_fast_dce): Add parameter to fast_dce.
(rest_of_handle_fast_byte_dce): New function.
(rtl_opt_pass pass_fast_rtl_byte_dce): New pass.
* Makefile.in (df-byte-scan.o, debugcnt.o): Added dependencies.
Co-Authored-By: Kenneth Zadeck <zadeck@naturalbridge.com>
From-SVN: r134523
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2008-04-02 Paolo Bonzini <bonzini@gnu.org>
* fwprop.c: Fix ISO-C99ism.
From-SVN: r133833
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2008-04-02 Andy Hutchinson <hutchinsonamdy@aim.com>
PR rtl-optimization/35542
* fwprop.c (forward_propagate_and_simplify): Replace
loc_reg_mentioned_in_p with reg_mentioned_p.
From-SVN: r133829
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2008-04-02 Paolo Bonzini <bonzini@gnu.org>
* fwprop.c (PR_CAN_APPEAR, PR_HANDLE_MEM): New.
(propagate_rtx_1): Handle PR_HANDLE_MEM.
(propagate_rtx): Pass PR_HANDLE_MEM if appropriate.
(varying_mem_p): Move above propagate_rtx.
(all_uses_available_at): Do not check MEMs.
From-SVN: r133828
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* gcc.dg/20050811-2.c: Update dumping flags.
* gcc.dg/sms-2.c: Update dumping flags.
* gcc.dg/var-expand1.c: Update dumping flags.
* gcc.dg/var-expand3.c: Update dumping flags.
* gcc.dg/pr30957-1.c: Update dumping flags.
* gcc.dg/20050811-1.c: Update dumping flags.
* gcc.dg/cpp/cmdlne-dI-M.C: Do not xfail.
* gcc.dg/cpp/cmdlne-dM-M.C: Do not xfail.
PR other/35094
* toplev.c (decode_d_option): Handle all CPP flags.
* tree-vrp.c: Update tree_pass descriptors.
* regrename.c: Update tree_pass descriptors.
* fwprop.c: Update tree_pass descriptors.
* doc/invoke.texi: Remove documentation of dropped -d? flags.
* tree-into-ssa.c: Update tree_pass descriptors.
* tree-dump.c: Update tree_pass descriptors.
* tree-complex.c: Update tree_pass descriptors.
* tree-dump.h: Update tree_pass descriptors.
* see.c: Update tree_pass descriptors.
* cgraphbuild.c: Update tree_pass descriptors.
* tracer.c: Update tree_pass descriptors.
* tree-loop-distribution.c: Update tree_pass descriptors.
* cgraph.c: Update tree_pass descriptors.
* postreload-gcse.c: Update tree_pass descriptors.
* postreload.c: Update tree_pass descriptors.
* tree-ssa-loop-ch.c: Update tree_pass descriptors.
* tree-tailcall.c: Update tree_pass descriptors.
* tree-pass.h (tree_opt_pass): Rename to ...
(opt_pass) ... this one; add "type" field and remove letter field.
(gimple_opt_pass, rtl_opt_pass, simple_ipa_opt_pass): New.
(execute_pass_list, execute_ipa_pass_list, all_passes, all_ipa_passes,
all_lowering_passes): Update declaration.
* ipa-cp.c: Update tree_pass descriptors.
* final.c: Update tree_pass descriptors.
* omp-low.c: Update tree_pass descriptors.
* tree-ssa-dse.c: Update tree_pass descriptors.
* ipa-reference.c: Update tree_pass descriptors.
* tree-ssa-uncprop.c: Update tree_pass descriptors.
* auto-inc-dec.c: Update tree_pass descriptors.
* reorg.c: Update tree_pass descriptors.
* cgraphunit.c: Update tree_pass descriptors.
* tree-ssa-copyrename.c: Update tree_pass descriptors.
* tree-ssa-ccp.c: Update tree_pass descriptors.
* df-core.c: Update tree_pass descriptors.
* mode-switching.c: Update tree_pass descriptors.
* tree-nomudflap.c: Update tree_pass descriptors.
* modulo-sched.c: Update tree_pass descriptors.
* ipa-pure-const.c: Update tree_pass descriptors.
* cse.c: Update tree_pass descriptors.
* web.c: Update tree_pass descriptors.
* tree-stdarg.c: Update tree_pass descriptors.
* tree-ssa-math-opts.c: Update tree_pass descriptors.
* tree-ssa-dom.c: Update tree_pass descriptors.
* tree-nrv.c: Update tree_pass descriptors.
* tree-ssa-alias.c: Update tree_pass descriptors.
* loop-init.c: Update tree_pass descriptors.
* gimple-low.c: Update tree_pass descriptors.
* ipa-inline.c: Update tree_pass descriptors.
* tree-ssa-sink.c: Update tree_pass descriptors.
* global.c: Update tree_pass descriptors.
* ifcvt.c: Update tree_pass descriptors.
* jump.c: Update tree_pass descriptors.
* predict.c: Update tree_pass descriptors.
* tree-ssa-loop.c: Update tree_pass descriptors.
* recog.c: Update tree_pass descriptors.
* dse.c: Update tree_pass descriptors.
* tree-ssa-ifcombine.c: Update tree_pass descriptors.
* tree-eh.c: Update tree_pass descriptors.
* regmove.c: Update tree_pass descriptors.
* local-alloc.c
* function.c: Update tree_pass descriptors.
* tree-vectorizer.c: Update tree_pass descriptors.
* gcse.c: Update tree_pass descriptors.
* ipa-type-escape.c: Update tree_pass descriptors.
* tree-if-conv.c: Update tree_pass descriptors.
* init-regs.c: Update tree_pass descriptors.
* ipa.c: Update tree_pass descriptors.
* tree-ssa-phiopt.c: Update tree_pass descriptors.
* rtl-factoring.c: Update tree_pass descriptors.
* lower-subreg.c: Update tree_pass descriptors.
* bt-load.c: Update tree_pass descriptors.
* tree-dfa.c: Update tree_pass descriptors.
* except.c: Update tree_pass descriptors.
* emit-rtl.c: Update tree_pass descriptors.
* cfgexpand.c: Update tree_pass descriptors.
* tree-cfgcleanup.c: Update tree_pass descriptors.
* cfgcleanup.c: Update tree_pass descriptors.
* tree-ssa-pre.c: Update tree_pass descriptors.
* tree-sra.c: Update tree_pass descriptors.
* tree-mudflap.c: Update tree_pass descriptors.
* tree-ssa-copy.c: Update tree_pass descriptors.
* cfglayout.c: Update tree_pass descriptors.
* tree-ssa-forwprop.c: Update tree_pass descriptors.
* tree-ssa-dce.c: Update tree_pass descriptors.
* tree-ssa.c: Update tree_pass descriptors.
* regclass.c: Update tree_pass descriptors.
* integrate.c: Update tree_pass descriptors.
* tree-optimize.c: Update tree_pass descriptors.
* tree-ssa-phiprop.c: Update tree_pass descriptors.
* tree-object-size.c: Update tree_pass descriptors.
* combine.c: Update tree_pass descriptors.
* tree-outof-ssa.c: Update tree_pass descriptors.
* bb-reorder.c: Update tree_pass descriptors.
* stack-ptr-mod.c: Update tree_pass descriptors.
* var-tracking.c: Update tree_pass descriptors.
* tree-profile.c: Update tree_pass descriptors.
* tree-vect-generic.c: Update tree_pass descriptors.
* reg-stack.c: Update tree_pass descriptors.
* sched-rgn.c: Update tree_pass descriptors.
* tree-ssa-structalias.c: Update tree_pass descriptors.
* tree-cfg.c: Update tree_pass descriptors.
* passes.c (current_pass): Update declaration.
(finish_optimization_passes): Update.
(all_passes, all_ipa_passes, all_lowering_passes): Update declaration.
(register_one_dump_file, register_dump_files_1, next_pass_1):
Update arguments.
(init_optimization_passes): Update handling of new types.
(execute_one_pass, execute_pass_list, execute_ipa_pass_list): Update.
* ipa-struct-reorg.c: Update tree_pass descriptors.
* tree-ssa-reassoc.c: Update tree_pass descriptors.
* combine-stack-adj.c: Update tree_pass descriptors.
* cfgrtl.c: Update tree_pass descriptors.
* dce.c: Update tree_pass descriptors.
* tree-ssanames.c: Update tree_pass descriptors.
From-SVN: r133342
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2008-03-05 Kenneth Zadeck <zadeck@naturalbridge.com>
* fwprop.c (update_df): Support width and offset parameters of
df_ref_create.
* ra-conflict.c (mark_reg_store, clear_reg_in_live,
global_conflicts): Change DF_REF_EXTRACT to either
DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT. Change
DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
* df-scan.c (df_ref_record, df_defs_record,
df_ref_create_structure, df_def_record_1, df_uses_record,
df_get_conditional_uses, df_get_call_refs, df_insn_refs_collect,
df_bb_refs_collect, df_entry_block_defs_collect,
df_exit_block_uses_collect): Support new width and offset fields.
(ref_extract_pool): New storage pool.
(df_free_ref): New function.
(df_reg_chain_unlink, df_free_collection_rec,
df_sort_and_compress_refs): Call df_free_ref.
(df_ref_equal_p, df_ref_compare): Compare offset and width fields
of df_ref_extract.
(df_ref_create_structure): Allocate df_ref_extract if offset and
width fields are used.
(df_def_record_1): Get offset and width from ZERO_EXTRACT.
(df_uses_record): Get offset and width from ZERO_EXTRACT
and SIGN_EXTRACT.
* global.c (build_insn_chain): Change DF_REF_EXTRACT to either
DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT. Change
DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
* df.h (df_ref_flags): Change DF_REF_EXTRACT to either
DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT. Change
DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
(df_ref_extract): New structure.
(DF_REF_WIDTH, DF_REF_OFFSET): New macros.
(df_ref_create): Add width and offset parameters.
From-SVN: r132962
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PR rtl-optimization/34773
* reg-notes.def (EQUAL): Mention significance of combination of
REG_EQUAL and REG_RETVAL.
* fwprop.c (try_fwprop_subst): Don't add REG_EQUAL to an
insn that has a REG_RETVAL.
From-SVN: r132053
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propagation into an address...
2007-11-15 Paolo Bonzini <bonzini@gnu.org>
* fwprop.c (try_fwprop_subst): Skip profitability check for forward
propagation into an address; that's done in should_replace_address.
From-SVN: r130201
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PR rtl-optimization/34012
* fwprop.c (try_fwprop_subst): Do not replace if the new
SET_SRC has a higher cost than the old one.
* gcc.target/i386/pr34012.c: New test.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r130043
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* regrename.c (pass_regrename, pass_cprop_hardreg): Add RTL sharing
verifier.
* fwprop.c (pass_rtl_fwprop, pass_rtl_fwprop_add): Likewise.
* see.c (pass_see): Likewise.
* tracer.c (pass_tracer): Likewise.
* postreload-gcse.c (pass_gcse2): Likewise.
* postreload.c (pass_postreload_cse): Likewise.
* mode-switching.c (pass_mode_switching): Likewise.
* modulo-sched.c (pass_sms): Likewise.
* cse.c (cse_insn): Likewise.
* web.c (pass_web): Likweise.
* combine-stack-adj.c (pass_stack_adjustments): Likewise.
* dce.c (pass_ud_rtl_dce, pass_fast_rtl_dce): Likewise.
* loop-init.c (pass_rtl_loop_init): Likewise.
(pass_rtl_loop_done, pass_rtl_move_loop_, pass_rtl_unswitch,
pass_rtl_unroll_and, pass_rtl_doloop): Likewise.
* global.c (pass_global_alloc): Likewise.
* ifcvt.c (pass_rtl_ifcvt, pass_if_after_combine,
pass_if_after_reload): Likewise.
* reload.c (pass_peephole2, pass_split_for_shoren_branches): Likewise.
* dse.c (pass_rtl_dse1, pass_rtl_dse2): Likewise.
* regmove.c (pass_regmove): Likewise.
* function.c (pass_thread_prologugues_epilogues): Likewise.
* gcse.c (pass_gcse): Likewise.
* rtl-factoring.c (pass_rtl_seqabstr): Likewise.
* lower-subreg.c (pass_lower_subreg2): Likewise.
* bt-load.c (pass_branch_target_load): Likewise.
* emit-rtl.c (pass_unshare_all_rtl): Likewise.
* cfgcleanup.c (pass_jump, pass_jump2): Likewise.
* combine.c (pass_combine): Likewise.
* bb-reorder.c (pass_duplicate_comp, pass_reorder_blocks): Likewise.
(pass_partition_blocks): Likewise.
* var-tracking.c (pass_variable_track): Likewise.
* reg-stack.c (pass_stack_regs_run): Likewise.
* sched-rgn.c (pass_sched, pass_sched2): Likewise.
* passes.c (pass_postreload): Likewise.
(execute_function_todo): Add TODO_verify_rtl_sharing handling code.
* tree-pass.h (TODO_verify_rtl_sharing): New.
(TODO_update_ssa, TODO_update_ssa_no_phi, TODO_update_ssa_full_phi,
TODO_update_ssa_only_virtuals, TODO_remove_unused_locals,
TODO_set_props, TODO_df_finish, TODO_df_verify,
TODO_mark_first_instance, TODO_rebuild_alias): Renumber.
From-SVN: r128126
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License and to point readers at the COPYING3 file and the FSF's license web page.
From-SVN: r126948
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* fwprop.c (try_fwprop_subst): Use validate_unshare_change.
* postreload.c (reload_cse_simplify_set): Instead of copying the rtx
early use validate_unshare_change.
(reload_combine): Likewise.
* recog.c (change_t): New field unshare.
(validate_change_1): Rename from validate_change; add argument unshare.
(validate_change): Turn into wrapper of validate_change_1; update
prototype for bools.
(validate_unshare_change): New.
(confirm_change_group): Unshare changes if asked for; avoid unnecesary
calls of df_insn_rescan.
* recog.h (validate_change): Replace ints by bools.
(validate_unshare_change): Declare.
From-SVN: r126050
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From-SVN: r125624
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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.
From-SVN: r123084
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2007-02-22 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/30841
* fwprop.c (propagate_rtx_1): Accept a VOIDmode replacement address.
From-SVN: r122253
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* 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.
From-SVN: r121821
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../../gcc/gcc/config/pa/pa.md > tmp-condmd.c: /bin/sh: 13354 Memory fault(coredump))
2006-12-22 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/29840
* fwprop.c (forward_propagate_into): Reject artificial uses/defs.
(fwprop_init): Add DF_HARD_REGS to df_init call.
From-SVN: r120147
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* builtins.c, cfgloop.h, cgraph.h, config/arm/arm.c,
config/i386/i386.c, config/i386/i386.h, config/mips/mips.h,
config/rs6000/cell.md, config/rs6000/rs6000.c, config/sh/sh.c,
config/sh/sh4-300.md, config/spu/spu-builtins.def,
config/spu/spu-c.c, config/spu/spu-modes.def,
config/spu/spu.c, config/spu/spu.md,
config/spu/spu_internals.h, config/spu/vmx2spu.h,
fold-const.c, fwprop.c, predict.c, tree-data-ref.h,
tree-flow.h, tree-ssa-loop-manip.c, tree-ssa-loop-niter.c,
tree-ssa-pre.c, tree-vect-analyze.c, tree-vect-transform.c,
tree-vectorizer.c, tree-vrp.c: Fix comment typos. Follow
spelling conventions.
From-SVN: r119442
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2006-11-19 Andrew Pinski <pinskia@gmail.com>
PR rtl-opt/29879
* fwprop.c (loops): Remove.
(forward_propagate_into): Use current_loops instead of
loops.
(fwprop_init): Call loop_optimizer_init instead of
flow_loops_find.
(fwprop_done): Call loop_optimizer_finalize instead of
flow_loops_free.
(fwprop): Use current_loops instead of loo
From-SVN: r119010
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2006-11-14 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/29798
* fwprop.c (use_killed_between): Check that DEF_INSN dominates
TARGET_INSN before any other check.
(fwprop_init): Always calculate dominators.
(fwprop_done): Always free them.
2006-11-14 Paolo Bonzini <bonzini@gnu.org>
PR rtl-optimization/29798
* gcc.c-torture/execute/pr29798.c: New.
From-SVN: r118808
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2006-11-03 Paolo Bonzini <bonzini@gnu.org>
Steven Bosscher <stevenb.gcc@gmail.com>
* fwprop.c: New file.
* Makefile.in: Add fwprop.o.
* tree-pass.h (pass_rtl_fwprop, pass_rtl_fwprop_with_addr): New.
* passes.c (init_optimization_passes): Schedule forward propagation.
* rtlanal.c (loc_mentioned_in_p): Support NULL value of the second
parameter.
* timevar.def (TV_FWPROP): New.
* common.opt (-fforward-propagate): New.
* opts.c (decode_options): Enable forward propagation at -O2.
* gcse.c (one_cprop_pass): Do not run local cprop unless touching jumps.
* cse.c (fold_rtx_subreg, fold_rtx_mem, fold_rtx_mem_1, find_best_addr,
canon_for_address, table_size): Remove.
(new_basic_block, insert, remove_from_table): Remove references to
table_size.
(fold_rtx): Process SUBREGs and MEMs with equiv_constant, make
simplification loop more straightforward by not calling fold_rtx
recursively.
(equiv_constant): Move here a small part of fold_rtx_subreg,
do not call fold_rtx. Call avoid_constant_pool_reference
to process MEMs.
* recog.c (canonicalize_change_group): New.
* recog.h (canonicalize_change_group): New.
* doc/invoke.texi (Optimization Options): Document fwprop.
* doc/passes.texi (RTL passes): Document fwprop.
Co-Authored-By: Steven Bosscher <stevenb.gcc@gmail.com>
From-SVN: r118475
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