diff options
Diffstat (limited to 'gcc-4.4.3/gcc/ChangeLog.dataflow')
| -rw-r--r-- | gcc-4.4.3/gcc/ChangeLog.dataflow | 4481 |
1 files changed, 0 insertions, 4481 deletions
diff --git a/gcc-4.4.3/gcc/ChangeLog.dataflow b/gcc-4.4.3/gcc/ChangeLog.dataflow deleted file mode 100644 index 936caa091..000000000 --- a/gcc-4.4.3/gcc/ChangeLog.dataflow +++ /dev/null @@ -1,4481 +0,0 @@ -2007-06-07 Kenneth Zadeck <zadeck@naturalbridge.com> - - * emit-rtl.c (set_insn_deleted): Changed NOTE_LINE_NUMBER to - NOTE_KIND. - (emit_note_after): Fixed merge glitch. - * combine.c (try_combine): Changed NOTE_LINE_NUMBER to - NOTE_KIND. - * reg-stack.c (convert_regs_1): Fixed merge glitch. - * config/rs6000/rs6000.c (no_global_regs_above): Fixed merge typo. - (rs6000_emit_prologue): Fixed merge glitch. - -2007-06-06 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regrename.c (do_replace): Removed ifdefed out code. - * fwprop.c: Fixed copyright. - * testsuite/Changelog.dataflow: Merged entry into - testsuite/Changelog. Deleted file. - * global.c: Fixed comments. - * recog.c (confirm_change_group): Fixed comments. - (peephole2_optimize): Removed ifdefed out code. - * gcse.c (try_replace_reg): Removed redundant changing and - rescanning of notes. - * rtl.h (SET_REGNO): Replaced brackets. - * stack-ptr-mod.c: Changed copyright years. - -2007-06-06 Seongbae Park <seongbae.park@gmail.com> - - * config/ia64/ia64.c (ia64_frame_info): Restored the comment - for the structure above. Removed left-over dead code from debugging. - (ia64_compute_frame_size): Comment cleanup. - (ia64_expand_prologue): Style fix. Debugging information header. - (ia64_init_expanders): Added a comment. - * config/ia64/ia64.h (ia64_init_expanders): Declaration moved - to ia64-protos.h - * config/ia64/ia64-protos.h (ia64_init_expanders): Declaration - moved from ia64.h - -2007-06-06 Kenneth Zadeck <zadeck@naturalbridge.com> - - * doc/rtl.text: Fixed spelling. - * dse.c (store_info, read_info, insn_info, bb_info, group_info, - deferred_change): Fixed formatting. - (step0): Renamed to dse_step0. - (step1): Renamed to dse_step1. - (step2_init): Renamed to dse_step2_init. - (step2_nospill): Renamed to dse_step2_nospill. - (step2_spill): Renamed to dse_step2_spill. - (step3_scan): Renamed to dse_step3_scan. - (step3_exit_block_scan): Renamed to dse_step3_exit_block_scan. - (step3): Renamed to dse_step3. - (step4_nospill): Renamed to dse_step4_nospill. - (step4_spill): Renamed to dse_step4_spill. - (step4): Renamed to dse_step4. - (step5_nospill): Renamed to dse_step5_nospill. - (step5_spill): Renamed to dse_step5_spill. - (step6): Renamed to dse_step6. - (rest_of_handle_dse): Updated names of functions. - * emit_rtl.c (verify_rtx_sharing, copy_rtx_if_shared_1, - copy_insn_1): Now calls shared_const_p. - * cselib.c (expand_loc, cselib_expand_value_rtx): Fixed comments. - (cselib_expand_value_rtx): Now calls shared_const_p. - * rtl.c (shared_const_p): New function. - (copy_rtx): Now calls shared_const_p. - * rtl.h (shared_const_p): New function. - -2007-06-06 Kenneth Zadeck <zadeck@naturalbridge.com> - - * combine.c (find_single_use_1): Fixed comment and changed 0 to NULL. - (find_single_use): Removed comment. - (delete_noop_move): Removed unnecessary continue and removed - nnoops counter. Function now does not return anything. - -2007-05-31 Kenneth Zadeck <zadeck@naturalbridge.com> - - * bitmap.c (bitmap_elt_copy): Fixed comment. - * cfganal.c (inverted_post_order_compute): Fixed comment and - formatting of test. - * basic_block.h: Removed include rtl.h. - (enum bb_flags): Renumbered. - (FOR_EACH_BB_IN_REGION, FOR_EACH_BB_REVERSE_IN_REGION): Removed. - (FOR_BB_INSNS_SAFE, FOR_BB_INSNS_REVERSE_SAFE): Fixed formatting. - -2007-05-30 Kenneth Zadeck <zadeck@naturalbridge.com> - - * auto-inc-dec.c: Updated copyright date. - (enum form, set_inc_state, dump_inc_insn, move_dead_notes, - insert_move_insn_before, attempt_change, try_merge, find_address, - find_mem): Reformatted. - (reverse_inc, find_address): Fixed spelling. - (attempt_change, try_merge): Add default case. - * basic-block.h: Updated copyright date. - * bitmap.c: Updated copyright date. - * bitmap.h: Updated copyright date. - * cfganal.c: Updated copyright date. - * cfg.c: Updated copyright date. - * cfghooks.h: Updated copyright date. - * cfglayout.c: Updated copyright date. - * cfgloop.c: Updated copyright date. - * cfgloop.h: Updated copyright date. - * cfgrtl.c: Updated copyright date. - * combine.c: Updated copyright date. - * combine-stack-adj.c: Updated copyright date. - * config/arc/arc.c: Updated copyright date. - * config/arm/arm.c: (use_return_insn, - arm_compute_save_reg0_reg12_mask, arm_get_frame_offsets, - arm_save_coproc_regs): Fixed formatting. - * config/bfin/bfin.c: Updated copyright date. - * config/c4x/c4x.c: Updated copyright date. - * config/c4x/c4x.h: Updated copyright date. - * config/cris/cris.c: Updated copyright date. - * config/crx/crx.c: Updated copyright date. - * config/crx/crx.h: Updated copyright date. - * config/darwin.c: Updated copyright date. - * config/frv/frv.c: Updated copyright date. - * config/h8300/h8300.c: Updated copyright date. - * config/h8300/h8300.md: Updated copyright date. - * config/ia64/ia64.h: Updated copyright date. - * config/iq2000/iq2000.c: Updated copyright date. - * config/iq2000/iq2000.h: Updated copyright date. - * config/m32c/m32c.c: Updated copyright date. - * config/m68hc11/m68hc11.c: Updated copyright date. - * config/m68k/m68k.c: Updated copyright date. - * config/mips/mips.c: Updated copyright date. - * config/mips/mips.md: Updated copyright date. - * config/mmix/mmix.c: Updated copyright date. - * config/mn10300/mn10300.c: Updated copyright date. - * config/mt/mt.c: Updated copyright date. - (mt_print_operand_simple_address, mt_print_operand): Fixed formatting. - * config/mt/mt.h: Updated copyright date and fixed formatting. - * config/pa/pa.c: Updated copyright date. - * config/pa/pa.h: Updated copyright date. - * config/pdp11/pdp11.c: Updated copyright date. - * config/pdp11/pdp11.h: Updated copyright date. - * config/rs6000/predicates.md: Updated copyright date. - * config/s390/s390.c: Updated copyright date. - * config/score/score-mdaux.c: Updated copyright date. - * config/sh/sh.c: Updated copyright date. - * config/sh/sh.md: Updated copyright date. - * config/sparc/sparc.c: Updated copyright date. - * config/stormy16/stormy16.c: Updated copyright date. - * config/v850/v850.c: Updated copyright date. - * config/vax/vax.c: Updated copyright date. - * cselib.c: Updated copyright date. - (expand_loc): Fixed formatting. - * cselib.h: Updated copyright date. - * dbgcnt.c: Updated copyright date. - * dbgcnt.def: Updated copyright date. - * dbgcnt.h: Updated copyright date. - * dce.c: Updated copyright date. - (fast_dce): Fixed formatting. - * dce.h: Updated copyright date. - * ddg.c: Updated copyright date. - * ddg.h: Updated copyright date. - * df-core.c: Updated copyright date. - * df.h: Updated copyright date and fixed formatting. - * doc/cfg.texi: Updated copyright date. - * doc/rtl.texi: Updated copyright date. - * dominance.c: Updated copyright date. - * function.h: Updated copyright date. - * fwprop.c: Updated copyright date. - * global.c: Updated copyright date. - * integrate.c: Updated copyright date. - * local-alloc.c: Updated copyright date. - * loop-init.c: Updated copyright date. - * loop-invariant.c: Updated copyright date. - * loop-iv.c: Updated copyright date. - * optabs.h: Updated copyright date. - * output.h: Updated copyright date. - * postreload.c: Updated copyright date. - * postreload-gcse.c: Updated copyright date. - * recog.h: Updated copyright date. - * regmove.c: Updated copyright date. - * reg-notes.def: Updated copyright date. - * regrename.c: Updated copyright date. - * reg-stack.c: Updated copyright date. - * reload.c: Updated copyright date. - * reorg.c: Updated copyright date. - * resource.c: Updated copyright date. - * resource.h: Updated copyright date. - * rtl-factoring.c: Updated copyright date. - * sbitmap.c: Updated copyright date. - * sbitmap.h: Updated copyright date. - * sched-deps.c: Updated copyright date. - * sched-ebb.c: Updated copyright date. - * sched-int.h: Updated copyright date. - * sched-rgn.c: Updated copyright date. - * sched-vis.c: Updated copyright date. - * see.c: Updated copyright date. - (see_handle_relevant_uses): Fixed formatting. - * stack-ptr-mod.c: Updated copyright date. - * struct-equiv.c: Updated copyright date. - * tracer.c: Updated copyright date. - * web.c: Updated copyright date. - -2007-05-30 Kenneth Zadeck <zadeck@naturalbridge.com> - - * auto-inc-dec.c (mem_insn.mem_pat): Renamed mem_loc. - (attempt_change): Fixed comments and renamed new_addr_pat to new_addr. - (try_merge, attempt_change, find_address, find_mem): Renamed - mem_pat to mem_loc. - -2007-05-27 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-core.c (df_hybrid_search_forward, df_hybrid_search_backward - df_iterative_dataflow): Removed. - * df.h (df_iterative_dataflow): Removed. - -2007-05-27 Kenneth Zadeck <zadeck@naturalbridge.com> - - * dse.c (replace_inc_dec, delete_dead_store_insn, scan_insn, - dse_record_singleton_alias_set, dse_confluence_0, - dse_confluence_n, step4, step5_nospill, step5_spill, - rest_of_handle_dse, pass_rtl_dse1, pass_rtl_dse2): Removed code - to allow dse to run on trunk in front of flow.c - (problem): Removed. - -2007-05-26 Kaz Kojima <kkojima@gcc.gnu.org> - - * bt-load.c: Include recog.h. - (move_btr_def): Use validate_replace_rtx instead of replace_rtx. - -2007-05-25 Steven Bosscher <steven@gcc.gnu.org> - - * emit-rtl.c (try_split): Remove unnecessary setting/resetting - of the USED flags of TRIAL. - -2007-05-25 Kenneth Zadeck <zadeck@naturalbridge.com> - - * dse.c (insn_info.stack_read, group_info.frame_related): New - variable. - (get_group_info): Initialize frame_related. - (scan_insn, scan_reads_nospill): Remove frame_related stores from - consideration for const functions. - (step1, step2_init, step3_exit_block_scan): Use frame_related field. - (step3_scan, step5_nospill): Change parameters to scan_reads_nospill. - -2007-05-25 Ian Lance Taylor <iant@google.com> - - * reload1.c (mark_home_live_1): New static function, broken out of - mark_home_live. - (mark_home_live): Call mark_home_live_1. - (scan_paradoxical_subregs): Call mark_home_live_1. - -2007-05-24 Andrew Pinski <andrew_pinski@playstation.sony.com> - - * config/spu/spu.md (smulsi3_highpart): Unshare the rtl chain. - (umulsi3_highpart): Likewise. - -2007-05-24 Eric Christopher <echristo@gmail.com> - - * config/mips/mips.c (mips_save_reg_p): Use df_regs_ever_live_p. - (mips_output_mi_thunk): Use SET_REGNO. - -2007-05-23 Kaz Kojima <kkojima@gcc.gnu.org> - - * config/sh/sh.c (sh_expand_prologue): Fix typo. - -2007-05-23 Paolo Bonzini <bonzini@gnu.org> - - * emit-rtl.c [!HAVE_blockage]: Provide a gen_blockage routine here. - * rtl.h (gen_blockage): Add prototype. - - * cse.c (last_bb_reg_used_in, reg_used_in_multiple_bb): Remove. - (mark_reg_use_bb): Remove. - (cse_main): Remove the initialization of reg_used_in_multiple_bb - and last_bb_reg_used_in, and the insn walk that calls mark_reg_use_bb. - (cse_ebb_live_in, cse_ebb_live_out): New. - (cse_extended_basic_block): Set them. - (make_regs_eqv): Use them. - -2007-05-23 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_get_regular_block_artificial_uses): Set the - HARD_FRAME_POINTER not the FRAME_POINTER after reload. Set both - the HARD_FRAME_POINTER and the FRAME_POINTER before reload. - * dse.c (const_or_frame_p): Removed unnecessary test. - * config/s390/s390.c (s390_emit_prologue): Removed REG_MAYBE_DEAD - notes. - * config/spu/spu.c (frame_emit_add_imm, spu_expand_prologue): Ditto. - * config/i386/i386.c (ix86_expand_prologue): Ditto. - * config/sh/sh.c (sh_expand_prologue): Ditto. - * config/sh/sh.md (define_expand): Ditto. - * config/iq2000/iq2000.c (iq2000_expand_prologue): Ditto. - * config/mn10300/mn10300.c (expand_prologue): Ditto. - * config/ia64/ia64.c (spill_restore_mem, ia64_expand_prologue): Ditto. - * config/m68k/m68k.c (m68k_expand_prologue): Ditto. - * config/rs6000/rs6000.c (rs6000_maybe_dead): Removed. - (rs6000_emit_load_toc_table, rs6000_emit_prologue): Removed calls - to rs6000_maybe_dead. - * config/bfin/bfin.c (expand_interrupt_handler_prologue, - bfin_load_pic_reg): Removed REG_MAYBE_DEAD notes. - * reg-notes.def (MAYBE_DEAD): Removed. - * dce.c (deletable_insn_p): Removed test of RTX_FRAME_RELATED_P. - -2007-05-21 Kenneth Zadeck <zadeck@naturalbridge.com> - - * dbgcnt.def: Fixed comment. - * df-scan.c (df_get_regular_block_artificial_uses): Added frame - pointer after reload if frame_pointer_needed. - * df.h (df_simulate_defs, df_simulate_uses): Made public. - * df-problems.c (df_simulate_defs, df_simulate_uses): Made public. - * dce.c (deletable_insn_p): Only allow frame-related insns to be - deleted if there is a REG_MAYBE_DEAD note. - (dce_process_block): Now uses df_simulate_defs and - df_simulate_uses. - -2007-05-20 Kenneth Zadeck <zadeck@naturalbridge.com> - - * cfg.c (dump_bb_info): Fixed dump formatting problem. - * dse.c (const_or_frame_p): New function. - (canon_address): Fixed dump info and now callse const_or_frame_p - rather than rtx_varies_p. Also do simplification inside cselib. - (record_store): Fixed dump info. - * cselib.c (expand_loc): Fixed dump info. - (cselib_expand_value_rtx): Fixed dump info and now call - simplify_rtx on results of expansion. - -2007-05-17 Kenneth Zadeck <zadeck@naturalbridge.com> - - * ifcvt.c (dead_or_predictable): Replaced insn dfa with new df - routines. - * recog.c (peephole2_optimize): Replaced - df_lr_simulate_artificial_refs_at_end and df_lr_simulate_one_insn - with df_simulate_artificial_refs_at_end and - df_simulate_one_insn_backwards. - * rtl-factoring.c (collect_pattern_seqs, clear_regs_live_in_seq): - Ditto. - * df.h (df_lr_simulate_artificial_refs_at_end, - df_lr_simulate_one_insn): Removed. - (df_simulate_find_defs, df_simulate_artificial_refs_at_top, - df_simulate_one_insn_forwards, df_simulate_artificial_refs_at_end, - df_simulate_one_insn_backwards): Added. - * df-problems.c (df_lr_bb_local_compute): Removed unnecessary - tests. - (df_lr_simulate_artificial_refs_at_end, df_lr_simulate_one_insn): - Removed. - (df_simulate_find_defs, df_simulate_defs, df_simulate_uses, - df_simulate_fixup_sets, df_simulate_artificial_refs_at_top, - df_simulate_one_insn_forwards, df_simulate_artificial_refs_at_end, - df_simulate_one_insn_backwards): Added. - -2007-05-16 Seongbae Park <seongbae.park@gmail.com> - - * ifcvt.c (dead_or_predicable): Update test_live as well as test_set. - (if_convert): New parameter RECOMPUTE_DOMINANCE. - (rest_of_handle_if_conversion, rest_of_handle_if_after_combine, - rest_of_handle_if_after_reload): New parameter to if_convert. - -2007-05-16 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regstat.c (regstat_init_n_sets_and_refs, regstat_compute_ri, - regstat_compute_calls_crossed): Added time variable TV_REG_STATS. - * timevar.def (TV_REG_STATS): Added. - (TV_DF_RI): Deleted. - * df-problems.c (df_print_bb_index): Added identifer for eh blocks. - * dce.c (deletable_insn_p): Added code to not delete - RTX_FRAME_RELATED_P insns. - (dce_process_block): Removed insns_deleted and added code to reset - live set before confluence function. - (rest_of_handle_fast_dce): Added code to turn off df's version of dce if - flag_dce is not set and added DF_NO_INSN_RESCAN to flags that are cleared. - -2007-05-10 Roman Zippel <zippel@linux-m68k.org> - - * config/m68k/m68k.c: include df.h. - (m68k_output_mi_thunk): use SET_REGNO. - -2007-05-09 Kaz Kojima <kkojima@gcc.gnu.org> - - * df-core.c (df_get_bb_dirty): Return false if df_live is null. - -2007-05-09 Kaz Kojima <kkojima@gcc.gnu.org> - - * config/sh/sh.c (r0_life_regions): New variable. - (find_r0_life_regions): New static function. - (sh_md_init_global): Call find_r0_life_regions when - reload_completed isn't set. - (R0_MAX_LIVE_LENGTH): Remove. - (high__pressure): Return 1 if r0_life_regions is over - the given threshold. - -2007-05-08 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regrename.c (regrename_optimize): Renamed df_ri_add_problem to - df_note_add_problem. - * auto-inc-dec.c (rest_of_handle_auto_inc_dec): Ditto. - * sched_ebb.c (schedule_ebbs): Renamed df_ri_add_problem to - df_note_add_problem. Added call to regstat_compute_calls_crossed - and regstat_free_calls_crossed and deleted call to - allocate_reg_life_data. - * regstat.c (regstat_init_n_sets_and_refs, - regstat_free_n_sets_and_refs, regstat_bb_compute_ri, - regstat_compute_ri, regstat_free_ri, - regstat_bb_compute_calls_crossed, regstat_compute_calls_crossed, - regstat_free_calls_crossed): New functions. - * final.c (rest_of_handle_final): Removed call to free_reg_info. - * cfg.c (dump_reg_info): Many changes to accomodate new - implementation of REG_BASIC_BLOCK, REG_N_SETS, REG_N_DEATHS, - REG_N_CALLS_CROSSED. - * toplev.c (finalize): Removed call to free_reg_info. - * regs.h (REG_BASIC_BLOCK, REG_N_SETS, REG_N_REFS, REG_N_DEATHS, - REG_N_CALLS_CROSSED, REG_FREQ, REG_N_THROWING_CALLS_CROSSED, - REG_LIVE_LENGTH, REG_BASIC_BLOCK): Changed implementation. - (allocate_reg_life_data, allocate_reg_info, clear_reg_info_regno): - Removed. - * mode-switching.c (optimize_mode_switching): Removed call to - df_ri_add_problem. - * modulo-sched.c (sms_schedule): Renamed df_ri_add_problem to - df_note_add_problem. Added call to regstat_compute_calls_crossed - and regstat_free_calls_crossed - (rest_of_handle_sms): Deleted call to allocate_reg_info. - * global.c (compute_regsets): Moved all dataflow to local_alloc. - (rest_of_handle_global_alloc): Call regstat_free_n_sets_and_refs - and regstat_free_ri. - * ifcvt.c (dead_or_predicable, if_convert): Removed calls to - allocate_reg_info. - * timevar.def (TV_DF_NOTE): New timevar. - * regmove.c (copy_src_to_dest, regmove_optimize, fixup_match_1): - Changed calls to REG_N_SETS that changed the value to - INC_REG_N_SETS. - (regmove_optimize): Moved calls that compute df and register info - to after early out for flag_non_call_exceptions. Added calls to - regstat_init_n_sets_and_refs, regstat_compute_ri, - regstat_free_n_sets_and_refs and regstat_free_ri. - * local_alloc (local_alloc, equiv_init_movable_p): Added - NUM_FIXED_BLOCKS to tests for REG_BASIC_BLOCK. - (update_equiv_regs): Added code to update bitvectors when certain - local allocations are done. Changed REG_N_SETS to - DF_REG_DEF_COUNT. Added NUM_FIXED_BLOCKS to tests for - REG_BASIC_BLOCK. - (rest_of_handle_local_alloc): Moved computation of UREC from - global to here. - * function.c (regno_clobbered_at_setjmp): Added to test to see if - regno was valid. Moved function size test higher in call - heirarchy. - (setjmp_args_warning): Added tests to early out of check if - function is small or there are no setjmps. - * df.h (DF_RI, df_ri, DF_RI_LIFE, DF_RI_SETJMP, df_ri_add_problem, - df_ri_get_setjmp_crosses): Deleted. - (DF_NOTE, df_note, df_note_add_problem): Added. - * gcse (gcse_main): Removed computation of RI information and - removed calls to allocate_reg_info. - * init-regs.c (initialize_uninitialized_regs): Removed call to - allocate_reg_life_data. - * regclass.c (reg_info_data, reg_info_head, reg_pref_buffer, - allocate_reg_life_data, allocate_reg_info, clear_reg_info_regno): - Deleted. - (scan_one_insn): Changed some calls to REG_N_SETS and REG_N_REFS - to INC_REG_N_SETS and INC_REG_N_REFS. - (regclass): Allocate register information locally. - (free_reg_info): Changed the structures freed. - (reg_scan): Removed call to allocate_reg_info and changed call to - REG_N_SETS to DF_REG_DEF_COUNT. - * combine (try_combine, remove_death, distribute_notes): Removed - computation of REG_N_DEATHS. Changed some references to - REG_N_SETS to INC_REG_N_SETS. - (rest_of_handle_combine): Replaced call to df_ri_add_problem with - call to df_note_add_problem, and added call to - regstat_init_n_sets_and_refs and regstat_free_n_sets_and_refs. - * bb-reorder (rest_of_handle_partition_blocks): Removed call to - allocate_reg_life_data. - * df-problems.c (reg_n_info, df_ri_problem_p, df_ri_problem_data, - df_ri_alloc, df_ri_start_dump, df_ri_get_setjmp_crosses): Removed. - (print_note): Renamed df_print_note. - (df_kill_notes): Added parameters to save notes rather than just - let them die and remake them. - (df_set_note): New function. - (df_set_unused_notes_for_mw, df_set_dead_notes_for_mw, - df_create_unused_note, df_ri_bb_compute, df_ri_compute, - df_ri_free): Removed ri information computations. - (df_ri_bb_compute): Renamed to df_note_bb_compute. - (df_ri_compute): Renamed to df_note_compute. - (df_ri_free): Renamed to df_note_free. - (problem_RI): Renamed to problem_NOTE - (df_ri_add_problem): Renamed to df_note_add_problem. - * (reg-stack.c): Changed call to df_ri_add_problem to - df_note_add_problem. - * combine-stack-adj.c (rest_of_handle_stack_adjustments): Ditto. - * (Makefile.in): Added regstat.o. - * sched-rgn.c (schedule_insns): Changed call to df_ri_add_problem to - df_note_add_problem. Added calls to regstat_compute_calls_crossed - and regstat_free_calls_crossed. - * basic_block.h (REG_BLOCK_UNKNOWN, REG_BLOCK_GLOBAL, - REG_BASIC_BLOCK): Moved to regs.h. - * config/sparc/sparc.c (sparc_check_64): Changed REG_N_SETS to - DF_REG_DEF_COUNT. - * config/sh/sh.c (flow_dependent_p_1): Ditto. - (sh_md_init): Removed useless attempt to measure pressure on R0. - * config/m68k/m68k.c (m68k_output_mi_thunk): Removed call to - allocate_reg_info. - * reload1.c (delete_output_reload): Added NUM_FIXED_BLOCKS to - tests for REG_BASIC_BLOCK. - -2007-05-07 Seongbae Park <seongbae.park@gmail.com> - - * dse.c (add_wild_read): Do not remove read_info_t - that has non-zero alias_set. - (canon_address): Remove unused parameter for_read and bb_info. - Remove the unused code path, and update the dump message. - (record_store): Accomodate canon_address signature change. - (check_mem_read_rtx): Don't bail out early for wild_read. - (check_mem_read_rtx): Accomodate canon_address signature change. - (scan_insn): Move call insn handling after note_uses. - -2007-05-05 Ramana Radhakrishnan <ramana.r@gmail.com> - Serge Belyshev <belyshev@depni.sinp.msu.ru> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * combine.c (recog_for_combine): Keep unused notes from being - generated for scratch registers. - * config/alpha/alpha.c: Add include for df.h. - - -2007-05-01 Kenneth Zadeck <zadeck@naturalbridge.com> - - Do not delete regnotes when recreating them. - * df-problems.c (df_kill_notes): Store notes into new parameters - rather than killing them. - (df_set_note): New function. - (df_set_unused_notes_for_mw, df_set_dead_notes_for_mw, - df_create_unused_note, df_ri_bb_compute): Call df_set_note to - create new notes. - -2007-04-30 Seongbae Park <seongbae.park@gmail.com> - - * df-scan.c (df_reorganize_refs_by_reg_by_insn): - Scan artificial defs and uses as well. - * passes.c (init_optimization_passes): - Move pass_stack_ptr_mod from after pass_inc_dec. - -2007-04-29 Steven Bosscher <steven@gcc.gnu.org> - - Small cleanups without any semantics changes: - * df-scan.c (df_ref_record): Fix small style typo. - * df-core.c (df_hybrid_search_forward): Cleanup redundant loads. - (df_hybrid_search_backward): Likewise. - (df_worklist_dataflow): Check DIR against DF_NONE instead of 0. - - Small speedups: - * haifa-sched.c (move_block_after_check): Mark df solutions dirty - here, instead of... - (move_succs): ...here. - * df-core.c (df_analyze): Only verify POSTORDER_INVERTED if - checking is enabled. - - Fix Java bootstrap on ia64 - * emit-rtl.c (try_split): Unshare RTL sequences produced by splitters. - -2007-04-27 Kenneth Zadeck <zadeck@naturalbridge.com> - - * timevar.def (TV_DF_UR): Removed. - * df-scan.c (df_scan_alloc): Change pool size. - * df-core.c (df_finish_pass, rest_of_handle_df_initialize, - df_get_bb_dirty, df_verify): Merged df_ur and df_live problems - into df_live. - * global.c (compute_regsets, rest_of_handle_global_alloc): Ditto. - * df.h (DF_UR, DF_UR_BB_INFO, DF_UR_IN, DF_UR_OUT, df_ur, - df_ur_get_bb_info): Removed. - (df_ur_bb_info): Merged df_ur and df_live problems - into df_live. - * init-regs.c (initialize_uninitialized_regs): Changed DF_UR_IN to - DF_LIVE_IN. - * df_problems.c (df_ur_problem_data): Renamed to - df_live_problem_data. - (df_ur_set_bb_info): Renamed to df_live_set_bb_info. - (df_ur_free_bb_info): Renamed to df_live_free_bb_info. - (df_ur_alloc): Renamed to df_live_alloc. - (df_ur_reset): Renamed to df_live_reset. - (df_ur_bb_local_compute): Renamed to df_live_bb_local_compute. - (df_ur_local_compute): Renamed to df_live_local_compute. - (df_ur_init): Renamed to df_live_init. - (df_ur_confluence_n): Renamed to df_live_confluence_n. - (df_ur_transfer_function): Renamed to df_live_transfer_function. - (df_ur_local_finalize): Removed. - (df_ur_free): Renamed to df_live_free. - (df_ur_top_dump): Renamed to df_live_top_dump. - (df_ur_bottom_dump): Renamed to df_live_bottom_dump. - (df_ur_verify_solution_start): Renamed to - df_live_verify_solution_start. - (df_ur_verify_solution_end): Renamed to - df_live_verify_solution_end. - (problem_UR): Renamed to problem_LIVE. - (df_ur_add_problem): Renamed to df_live_add_problem. - (df_ur_verify_transfer_functions): Renamed to - df_live_verify_transfer_functions. - (df_live_set_bb_info, df_live_free_bb_info, df_live_alloc, - df_live_free, df_live_top_dump, df_live_bottom_dump, - df_live_add_problem): Deleted. - (df_chain_fully_remove_problem): Changed pool alloc block size. - * dce.c (dce_marked_bitmap_obstack): Removed. - (marked_insn_p, mark_insn, init_dce, end_ud_dce, fini_dce, - fast_dce): Changed marked to be sbitmap rather than bitmap. - * alloc_pool.c (create_alloc_pool, pool_alloc, pool_free): Split - free_list into virgin_free_list and returned_free_list. - * alloc_pool.h (free_list): Split into virgin_free_list and - returned_free_list. - (virgin_elts_remaining): New variable. - -2007-04-26 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-core.c (df_remove_problem): Allow df_ur and df_live - problems to be removed. - * global.c (compute_regsets): Remove df_ur and df_live when - adding df_urec. - (rest_of_handle_global_alloc): Add back df_ur and df_live when - removing df_urec. - * timevar.def (TV_DF_UD): Renamed to TV_DF_UR. - * function.c (thread_prologue_and_epilogue_insns): Removed - call to df_analyze. - * df-problems.c (problem_UR): Added remove function and renamed TV. - (problem_LIVE): Added remove function. - - -2007-04-26 Seongbae Park <seongbae.park@gmail.com> - - * tree-pass.h: Declaration for new pass. - * passes.c (init_optimization_passes): New pass. - * dce.c (prescan_insns_for_dce): Pass new param "fast" through. - (mark_artificial_uses, mark_reg_dependencies): New functions - - resurrected from the old svn revision. - (end_ud_dce, rest_of_handle_ud_dce, gate_ud_dce): New function. - (pass_ud_rtl_dce): New pass. - (fast_dce): New parameter for prescan_insns_for_dce. - -2007-04-24 Seongbae Park <seongbae.park@gmail.com> - - * final.c (leaf_renumber_regs_insn): Use SET_REGNO(). - * df-scan.c (df_insn_refs_collect): Handle non-local gotos. - * sparc.c: New include of df.h. - * dce.c (prescan_insns_for_dce): Call mark_libcall for all insns - with with REG_LIBCALL_ID. - -2007-04-23 Steven Bosscher <steven@gcc.gnu.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (problem_SCAN): Add time variable. - (df_refs_add_to_chains): Delete the refs vectors before - allocating new ones. - * df-core.c (df_analyze_problem): Push and pop problem specific - time vectors. - * timevar.def (TV_DF_SCAN, TV_DF_RU, TV_DF_RD, TV_DF_LR, TV_DF_UD, - TV_DF_LIVE, TV_DF_UREC, TV_DF_CHAIN, TV_DF_RI): New problem - specific time vars. - * dse.c (positions_needed): Changed to be bitmask from sbitmap. - (store_info.rhs): New field. - (free_store_info, step6): Changed positions_needed to be bitmask - from sbitmap. - (read_info.begin, read_info.end): Changed to be int. - (deferred_change): New struct. - (deferred_change_pool): New variable. - (step0): Initialize deferred_change_pool. - (canon_address): Added parameter to cselib_expand_value_rtx and - improved debugging. - (clear_rhs_from_active_local_stores, replace_read): New function. - (record_store, check_mem_read_rtx): Added code to invalidate - store_info.rhs. Changed positions_needed to be bitmask from - sbitmap. - (step1): Added code to process deferred_change_list. - (rest_of_handle_dse): Added deferred rescanning. - * df.h (df_problem.tv_id): New timevar for each problem. - * cselib.c (expand_loc, cselib_expand_value_rtx): Added code to - limit the amount of recursion allowed when expanding addresses. - * cselib.h (cselib_expand_value_rtx): Added max recursion - parameter. - * rtl.h (rhs_regno): Renamed tree to x. - * df-problems.c (df_problem problem_RU, df_problem problem_RD, - problem_LR, problem_UR, problem_LIVE, problem_UREC, problem_CHAIN, - problem_RI) Added timevar. - (df_live_local_finalize): Only update solution if dirty. - * Makefile.in (dse.o): Added dependencies. - -2007-04-23 Ian Lance Taylor <iant@google.com> - - * lower-subreg.c (resolve_reg_notes): Discard REG_DEAD and - REG_UNUSED notes for split registers. - (decompose_multiword_subregs): Remove life_blocks. - -2007-04-22 Steven Bosscher <steven@gcc.gnu.org> - - * df.h (df_bitmap_obstack): Declare. - - * df-scan.c (df_scan_problem_data): Add new bitmap obstacks for - regsets and insns/notes to be rescanned. - (df_scan_free_internal): Free the new bitmap obstacks. - (df_scan_alloc): Initialize the new bitmap obstacks, and use them. - (df_scan_free): Set df->blocks_to_analyze to NULL after freeing it. - (df_insn_rescan_all): Put temporary bitmaps on df_bitmap_obstack. - (df_process_deferred_rescans): Likewise. - (df_get_call_refs): Likewise. - (df_update_entry_block_defs): Likewise. Put entry_block_defs on - the regsets bitmap obstack. - (df_record_exit_block_uses): Changed like df_record_exit_block_uses. - (df_entry_block_bitmap_verify): Put temporary bitmaps on df_bitmap_obstack. - (df_exit_block_bitmap_verify): Likewise. - (df_scan_verify): Likewise. - - * df-core.c (df_bitmap_obstack): Declare. - (rest_of_handle_df_initialize): Initialize it. - (rest_of_handle_df_finish): Release it. - (df_set_blocks, df_worklist_dataflow, df_analyze, - df_compact_blocks): Use it. - - * df-problems.c (df_set_seen): Use df_bitmap_obstack for seen_in_block - and seen_in_insn. - (df_ri_compute): Likewise for bitmaps allocated for the RI problem. - - For the RU and RD problems, introduce per-problem bitmap obstacks: - (df_r[ud]_problem_data): Add a per-problem bitmap - obstack. - (df_r[ud]_alloc): Initialize and use them per df problem. - (df_r[ud]_confluence_n, df_r[ud]_transfer_function): Use them. - (df_r[ud]_free): Release them. - - * dce.c (dce_marked_bitmap_obstack, dce_blocks_bitmap_obstack, - dce_tmp_bitmap_obstack): New bitmap obstacks. - (init_dce): Initialize them. Use dce_marked_bitmap_obstack for - the bitmap of marked insns. - (end_fast_dce): Renamed to... - (fini_dce): ...this. Release the new bitmap obstacks. - (dce_process_block): Allocate local_live on dce_tmp_bitmap_obstack. - (fast_dce): Allocate basic block bitmaps on dce_blocks_bitmap_obstack. - (rest_of_handle_fast_dce): Call fini_dce, and clear df_in_progress. - (run_fast_df_dce): Likewise. - -2007-04-21 Andrew Pinski <andrew_pinski@playstation.sony.com> - - * config/spu/spu.c (fsmbi_const_p): Replace flow2_completed with - epilogue_completed. - -2007-04-16 Steven Bosscher <steven@gcc.gnu.org> - - * fwprop.c (forward_propagate_into): If multiple sets - return. - -2007-04-16 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_ref_create, df_reg_chain_unlink, - df_install_refs): Use df->analyze_subset. - (df_reorganize_refs_by_reg_by_reg, df_reorganize_refs_by_reg_by_insn): - New functions. - (df_reorganize_refs_by_reg): Split into - df_reorganize_refs_by_reg_by_reg, - df_reorganize_refs_by_reg_by_insn. - (df_add_refs_to_table): Do not add hardware_regs if not asked for. - (df_reorganize_refs_by_insn): Move call to count_refs. - (df_maybe_reorganize_def_refs, df_maybe_reorganize_use_refs): - Remove code to modify df->total_size. - * df-core.c (df_set_blocks): Set df->analyze_subset. - (df_finish_pass): Clear df->analyze->subset. - (df_analyze): Use df->analyze_subset. - (df_dump_start): Remove total_size from dump. - * df.h (DF_RI_NO_UPDATE, DF_DEFS_TOTAL_SIZE, DF_USES_TOTAL_SIZE): - Removed. - (df.analyze_subset): New field. * df-problems.c (df_ri_alloc, - df_ri_compute): Removed DF_RI_NO_UPDATE. - - -2007-04-12 Steven Bosscher <steven@gcc.gnu.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * cse.c (cse_insn): Do not emit barriers. - * dse.c (store_info.address): Renamed to mem_addr. - (canon_address): Removed address_out parameter. - (record_store): Removed address var and compute mem and - mem_address differently. - (check_mem_read_rtx): Removed address and changed parameters to - canon_true_dependence. - * cselib.c (cselib_expand_value_rtx): Do not translate - FRAME_POINTER_REGNUM and HARD_FRAME_POINTER_REGNUM. - -2007-04-11 Steven Bosscher <steven@gcc.gnu.org> - - * gcse.c (hash_scan_set): Make sure that INSN has only one - SET in its PATTERN before making SRC anticipatable. - * cfglayout.c (fixup_reorder_chain): Fix merge error, don't - call compact_blocks here. - -2007-04-09 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-core.c (add_problem): Keep the problem sorted in - problems_in_order. - * global.c (compute_regsets): Recompute register information. - -2007-04-08 Kenneth Zadeck <zadeck@naturalbridge.com> - - * optabs.h (maybe_encapsulate_block): Made public. - * optabs.c (maybe_encapsulate_block): Ditto. - (emit_no_conflict_block, emit_libcall_block): Remove - REG_LIBCALL_ID when deleteing REG_RETVAL and REG_LIBCALL - notes. - * reload1.c (reload): Ditto. - * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): - Use maybe_encapsulate_block to add libcall notes. - -2007-04-07 Kenneth Zadeck <zadeck@naturalbridge.com> - - * dse.c (clear_alias_set_lookup): New function. - (store_info.is_set): New field. - (replace_inc_dec, delete_dead_store_insn): Added more ifdefs so - dse could be tested on mainline. - (canon_address): Moved lookup of alias_set info to subroutine and - added better logging. Added code to detect if address contains an - AND and if so, escape. - (record_store, check_mem_read_rtx): White space cleanup. Added - code to skip store_info's for clobbers when comparing with - previous insn stores. We also mark store_info's as to whether - they are set or clobber based. - (scan_insn): Only add insn to active_stores_list if it has exactly - one store. - (step1): Add code to remove a store to the frame that goes dead at - the end of a function if there is a non overlaping block mode read - from the stack. The global algorithm cannot do this because it - takes a more conservative view of block mode reads. - (dse_confluence_0, dse_confluence_n, dse_transfer_function, - step5_spill, pass_rtl_dse2): Add ifdefs so this can be tested on - mainline. - (step5_nospill): Ignore clobbers and only look at the set to - decide if an insn can be deleted. - * init_regs.c: Whitespace. - * cselib.c (cselib_expand_value_rtx): Fixed comment and changed to - use proper macro. - -2007-04-06 Paolo Bonzini <bonzini@gnu.org> - - * bitmap.c (bitmap_set_range): New. - (bitmap_clear_range): Small optimization. - * bitmap.h (bitmap_set_range): New. - * df-problems.c (df_ref_bitmap): Remove. - (struct df_rd_problem_data, df_ru_problem_data): Remove related - data structures. - (df_ru_alloc, df_rd_alloc): Don't allocate them. - (df_ru_free, df_rd_free): Don't free them. - (df_ru_bb_local_compute_process_def, df_ru_local_compute, - df_rd_bb_local_compute_process_def, df_rd_local_compute): - Use bitmap_set_range and bitmap_clear_range instead of df_ref_bitmap. - -2007-04-05 Kenneth Zadeck <zadeck@naturalbridge.com> - - * sbitmap.c (sbitmap_empty_p): New function. - * sbitmap.h (sbitmap_empty_p): New function. - * dbgcnt.def (dse): New counter and sorted the others. - * df-core.c (df_worklist_dataflow): Made init_fun optional. - * cse.c (cse_main): Do dce at start of pass. - * timevar.def (TV_DSE3): Deleted. - * dse.c: New pass. - * dse.h: New file for dse pass. - * gcse.c (gcse_main): Set up the register info. - * alias.c (clear_reg_alias_info): Removed dead function. - * rtl.h (clear_reg_alias_info): Removed dead function. - * cselib.c (cselib_discard_hook): Added cselib val parameter. - (discard_useless_values): Added hook call here. - (remove_useless_values): Removed hook call from here. - (expand_loc, cselib_expand_value_rtx): New function. - (cselib_finish): Clear hook. - * cselib.h (cselib_discard_hook): Added cselib val parameter. - (expand_loc, cselib_expand_value_rtx): New function. - * common.opt (flag_flow_dce, new-dce): Removed flag. - (flag_dce, flag_dse): New flags. - * Makefile.in (dse.o): New pass. - * passes.c (init_iptimization_passes): Removed dse after combine. - Renamed dse3 to dse2. - * dce.c (delete_unmarked_insns): Renamed new_dce to dce. - (end_dce, mark_artificial_uses, mark_reg_dependencies, - invariant_store_base_eq, invariant_store_base_hash, value_store_base_eq, - value_store_base_hash, store_base_del, rs_init, rs_confluence, - rs_transfer_function, init_invariant_store_group, - init_value_store_group, empty_store_group, end_store_group, - init_rs_dflow, end_rs_dflow, init_unmarked_stores, - end_unmarked_stores, init_dse, end_dse, dump_stores, - split_address, add_store_offset, record_store, record_stores, - store_offset_compare, store_base_local, - invariant_store_base_local, value_store_base_local, - value_store_base_useless, remove_useless_values, - store_base_global, finish_max_in_luid, - calculate_reaching_stores, frame_stores_escape_p, - store_base_prune_needed, mark_escaping_stores, - insn_might_read_mem_rtx, insn_might_read_mem_use, - insn_might_read_mem_p, mark_dependent_stores, - prescan_insns_for_dse, rest_of_handle_dse, gate_dse): Deleted functions - as part of new dse pass in separate file. - * reload1.c (alter_reg): Added calls to register spill slots - with dse. - -2007-04-05 Peter Bergner <bergner@vnet.ibm.com> - - * config/rs6000/rs6000.c (rs6000_legitimate_address): Disallow - PRE_MODIFY for TDmode. - -2007-04-04 Kenneth Zadeck <zadeck@naturalbridge.com> - - * cfg.c (dump_reg_info): Added check to lower max if new regs - were added. - * init-regs.c (initialize_uninitialized_regs): Changed code to - insert move right before uninitized insn. - -2007-04-03 Paolo Bonzini <bonzini@gnu.org> - - * df-problems.c (df_chain_create_bb): Plug leak. - - * df-problems.c (df_chain_alloc): Fix typo. - -2007-04-03 Paolo Bonzini <bonzini@gnu.org> - - * dce.c (dce_process_block): Copy into DF_LR_IN. - * df-problems.c (df_lr_free_bb_info): Support bb_info->in - being the same bitmap as bb_info->top. - (df_lr_alloc): The adef and ause fields must be either - both NULL or both non-NULL. Initialize bb_info->top - to bb_info->in. - (df_lr_bb_local_compute): Allocate adef, ause, top together. - (df_lr_transfer_function): Simplify according to above - assumptions. - (df_lr_free): Zero out bb_info->top instead of freeing it - if it is the same as bb_info->in. - -2007-04-01 Kenneth Zadeck <zadeck@naturalbridge.com> - - * config/ia64/ia64.c (emit_predicate_relation_info): Changed - DF_LIVE_IN to df_get_live_in. - -2007-03-29 Paolo Bonzini <bonzini@gnu.org> - - * bitmap.c (bitmap_elt_copy, bitmap_elt_ior): New. - (bitmap_ior, bitmap_ior_into): Use them. - (bitmap_and_compl): Use them, return whether DST changed. - (bitmap_ior_and_compl): Rewrite. - * bitmap.h (bitmap_and_compl): Return a bool. - - * Makefile.in (alias.o): Fix dependencies. - * alias.c (find_base_value, init_alias_analysis): Use - DF_REG_DEF_COUNT. Include df.h. - * cfg.c (dump_reg_info): Don't fail if reg_info not initialized. - * cse.c (cse_main): Assume dataflow initialized. Call reg_scan. - * gcse.c (gcse_main): Call df_analyze, remove call to reg_scan. - * local-alloc.c (rest_of_handle_local_alloc): Call allocate_reg_info - earlier. - * passes.c (init_optimization_passes): Initialize dataflow before CSE. - - * global.c (n_reg_sets): Remove. - (reg_sets): Change to a VEC. - (mark_reg_store): Push onto reg_sets. - (global_conflicts): Assert reg_sets is empty, pop values out of it. - Don't allocate it nor free it here. - (global_alloc): Allocate reg_sets if necessary. - - * see.c (rest_of_handle_see): Don't call reg_scan. - * tracer.c (rest_of_handle_tracer): Likewise. - * cfgcleanup.c (rest_of_handle_jump2): Likewise. - * bb-reorder.c (fix_edges_for_rarely_executed_code): Likewise. - * loop-init.c (rtl_loop_done): Likewise. - * ifcvt.c (rest_of_handle_if_conversion): Likewise. - * mode-switching.c (optimize_mode_switching): Remove useless - allocate_reg_info. - * lower-subreg.c (decompose_register): Don't call clear_reg_info_regno. - (decompose_multiword_subregs): Don't call reg_scan_update. - * web.c (rest_of_handle_web): Delete. - (pass_web): Use web_main as pass routine. - - * regclass.c (max_parallel, max_set_parallel): Remove. - (reg_scan): Don't set them. - (reg_scan_update): Delete. - (reg_scan_mark_refs): Remove last parameter. - - * rtl.h (max_parallel): Remove. - -2007-03-29 Paolo Bonzini <bonzini@gnu.org> - - * df-core.c (pass_df_finish): Restore. - (pass_df_finish_opt, pass_df_finish_no_opt): Remove. - * tree-pass.h (pass_df_finish): Restore. - (pass_df_finish_opt, pass_df_finish_no_opt): Remove. - * passes.c (init_optimizations_passes): Remove pass_df_finish_no_opt. - Rename pass_df_finish_opt to pass_df_finish. - * reg-stack.c: Mostly evert previous commit. - -2007-03-28 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_df_initialize, pass_df_finish): Deleted. - (pass_df_initialize_opt, pass_df_initialize_no_opt, - pass_stack_regs_run, pass_df_finish_opt, pass_df_finish_no_opt): - Added. - * df-core.c (df_finish_pass): Made ur and live problems condition - on optimization. - (pass_df_initialize): Renamed to pass_df_initialize_opt. - (pass_df_initialize_no_opt): New pass. - (gate_opt, gate_no_opt): New functions. - (pass_df_finish): Renamed to pass_df_finish_opt. - (pass_df_finish_no_opt): New pass. - * mode-switching.c (optimize_mode_switching): Changed references - of DF_LIVE_IN to df_get_live_in. - * global.c (compute_regsets): Only add urec problem when - optimizing. - * function.c (regno_clobbered_at_setjmp): Changed references - of DF_LIVE_OUT to df_get_live_out. - * regclass.c (regclass_init): Only call df_compute_regs_ever_live - if optimizing. - * stack-ptr-mod.c (notice_stack_pointer_modification): Only call - df_update_exit_block_uses if optimizing. - * df-problems.c (df_get_live_in, df_get_live_out): Return df_live - sets if they are there. - * reg-stack.c (rest_of_handle_stack_regs_run): - Added new pass that just runs subpasses. - * passes.c (init_optimization_passes): Added passes to turn on df - at only some parts of the compilation for -O0. Moved - pass_split_before_regstack and pass_stack_regs into a subpass of - the stack regs pass. - -2007-03-28 Paolo Bonzini <bonzini@gnu.org> - - * df.h (df_ru_get_bb_info, df_rd_get_bb_info, df_lr_get_bb_info, - df_ur_get_bb_info, df_live_get_bb_info, df_urec_get_bb_info): - New inlines. - * df-scan.c (df_scan_get_bb_info, df_get_artificial_uses, - df_get_artificial_defs): Delete. - * df-problems.c (df_ru_get_bb_info, df_rd_get_bb_info, - df_lr_get_bb_info, df_ur_get_bb_info, df_live_get_bb_info, - df_urec_get_bb_info): Delete. - -2007-03-20 Seongbae Park <seongbae.park@gmail.com> - - * combine.c (setup_incoming_promotions): Fix a bad merge - - use the argument FIRST instead of recomputing it. - -2007-03-16 Paolo Bonzini <bonzini@gnu.org> - - * tracer.c (tracer): Work around pr19340.c failure by cleaning up - CFG outside cfglayout mode. Proper fix will be brought in by - next mainline merge. - -2007-03-16 Paolo Bonzini <bonzini@gnu.org> - - PR rtl-optimization/31025 - * df.h (df_get_live_out): New prototype. - * df-problems.c (df_get_live_out): New. - (df_ri_bb_compute): Use it. - -2007-03-13 Seongbae Park <seongbae.park@gmail.com> - - * tree-pass.h (pass_subregs_of_mode_finish): New pass declaration. - * regclass.c (record_subregs_of_mode): Made static, and - moved before init_subregs_of_mode to compile. - (cannot_change_mode_set_regs, invalid_mode_change_p): Added assertion. - (finish_subregs_of_mode): New function. - (pass_subregs_of_mode_finish): New pass. - * rtl.h (record_subregs_of_mode): Removed. - * combine.c (gen_lowpart_for_combine): Removed calls to - record_subregs_of_mode. - * passes.c (init_optimization_passes): Moved pass_subregs_of_mode_init - just before local_alloc. New pass pass_subregs_of_mode_finish - after global_alloc. - -2007-03-09 Richard Earnshaw <rearnsha@arm.com> - - * arm.c: Include df.h. - -2007-03-06 Steven Bosscher <steven@gcc.gnu.org> - - * fwprop.c (try_fwprop_subst): Remove redundant df_notes_rescan. - * see.c (rest_of_handle_see): Run a fast dce. Don't run cleanup_cfg. - * tracer.c (tracer): Clean up the cfg when still in cfglayout mode. - * postreload-gcse.c (rest_of_handle_gcse2): Don't run - delete_trivially_dead_insns, this pass cleans up after itself already. - * df-scan.c (df_insn_rescan): Fix typo. - * cse.c (rest_of_handle_cse): Don't use CLEANUP_EXPENSIVE. - (rest_of_handle_cse2): Likewise. Don't call delete_dead_jumptables. - * web.c (rest_of_handle_web): Don't run delete_trivially_dead_insns. - Also don't clean up the CFG, this pass does not transform the CFG. - * loop-init.c (rtl_loop_done): Don't run delete_trivially_dead_insns. - Don't use CLEANUP_EXPENSIVE. - * ifcvt.c (rest_of_handle_if_conversion): Don't use CLEANUP_EXPENSIVE. - * gcse.c (rest_of_handle_jump_bypass): Only remove unreachable basic - blocks before the pass. No need for a reg_scan. Rebuild jump labels - after delete_trivially_dead_insns. Don't use CLEANUP_EXPENSIVE. - (rest_of_handle_gcse): Rebuild jump labels after - delete_trivially_dead_insns. Don't call delete_dead_jumptables. - Don't use CLEANUP_EXPENSIVE. - * cfgcleanup.c (cleanup_cfg): Move delete_dead_jumptables call out of - the loop. - * combine.c (rest_of_handle_combine): Account cleanup_cfg to TV_JUMP. - Don't use CLEANUP_EXPENSIVE. Don't run delete_trivially_dead_insns. - * bb-reorder.c (rest_of_handle_reorder_blocks): Don't use - CLEANUP_EXPENSIVE. Resurrect CLEANUP_CROSSJUMP here. - -2007-03-06 Paolo Bonzini <bonzini@gnu.org> - - * cse.c (validate_canon_reg): Don't do anything if *XLOC is NULL. - Assert it is only called with insn != 0 and it never resets - something non-NULL to NULL. Always use validate_change. - (cse_insn): Always call canon_reg with an INSN except when it - is used on a REG. When processing notes, first canonicalize, - then fold, and call df_notes_rescan. - (cse_process_notes): Rename to cse_process_notes_1, add CHANGED - parameter. - (cse_process_notes_1): Wrapper around cse_process_notes to set - the CHANGED parameter. - (cse_extended_basic_block): Adjust call to cse_process_notes - and use result to call df_notes_rescan. - (cse_main): Set deferred insn rescanning flag, don't rescan on exit. - (pass_cse2): Add TODO_df_finish. - * gcse.c (pass_gcse): Likewise. - -2007-03-04 Roman Zippel <zippel@linux-m68k.org> - - * regclass.c (scan_one_insn): Call df_insn_rescan after breaking - out constant parameter. - -2007-03-04 Roman Zippel <zippel@linux-m68k.org> - - * df-scan.c (df_grow_ref_info): Also add bitmap_addend to size. - -2007-02-25 Ulrich Weigand <uweigand@de.ibm.com> - - Backport from mainline: - * 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 Ulrich Weigand <uweigand@de.ibm.com> - - Revert: - 2006-07-01 Daniel Berlin <dberlin@dberlin.org> - David Edelsohn <edelsohn@gnu.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - reload1.c (eliminate_regs_1, elimination_effects): Added cases for - PRE/POST_MODIFY. - -2007-02-22 Seongbae Park <seongbae.park@gmail.com> - - * global.c (reg_becomes_live): Mark registers not live - after CLOBBER. - -2007-02-22 Paolo Bonzini <bonzini@gnu.org> - - * combine.c (set_nonzero_bits_and_sign_copies, reg_nonzero_bits_for_combine, - reg_num_sign_bit_copies_for_combine, get_last_value): Look at DF_LR to - check if a register is uninitialized. - -2007-02-21 Paolo Bonzini <bonzini@gnu.org> - - * combine.c (uid_cuid, max_uid_cuid): Remove. - (INSN_CUID): Replace throughout with DF_INSN_LUID. - (last_call_cuid): Rename to last_call_luid. - (subst_low_cuid): Rename to subst_low_luid. - (last_insn_cost): Rename to max_uid_known. - (uid_log_links): New. - (INSN_COST, LOG_LINKS): New. - (combine_validate_cost): Use INSN_COST instead of accessing - uid_insn_cost. - (create_log_links, clear_log_links): Move before combine_instructions. - (combine_instructions): Don't compute cuids. Allocate uid_log_links. - Call create_log_links and clear_log_links here. Only initialize - data structures for insns within a basic block. Use INSN_COST - instead of accessing uid_insn_cost. Reset last_call_luid and - mem_last_set once for every basic block. Update label_tick on every - basic block, reset label_tick_ebb_start on every label. - (can_combine_p, try_combine, reg_nonzero_bits_for_combine, - reg_num_sign_bit_copies_for_combine, record_value_for_reg, - record_dead_and_set_regs_1, record_dead_and_set_regs, - get_last_value_validate, get_last_value, use_crosses_set_p, - move_deaths, distribute_notes, distribute_links): Rename stuff - as indicated above. In tests for LUIDs, check that we refer to - the same label_tick too. In tests for label ticks, check that - they are > label_tick_ebb_start. - (rest_of_handle_combine): Don't create/clear loglinks here. - - * gengtype.c (adjust_field_rtx_def): Adjust index of JUMP_LABEL. - * caller-save.c (init_caller_save): Adjust creation of INSNs. - * rtl.def (CODE_LABEL): Adjust comment. - (INSN, JUMP_INSN, CALL_INSN, BARRIER): Remove penultimate field. - * emit-rtl.c (unshare_all_rtl_again, verify_rtl_sharing, - unshare_all_rtl_in_chain, make_insn_raw, make_jump_insn_raw, - make_call_insn_raw): Remove references to LOG_LINKS. - * rtl.h (LOG_LINKS): Remove. - (REG_NOTES, CALL_INSN_FUNCTION_USAGE, JUMP_LABEL): Shift index - down by one. - - * regs.h (struct reg_info_def): Remove first_uid and last_uid. - (REGNO_FIRST_UID, REGNO_LAST_UID): Remove. - * cse.c (cse_basic_block_start, cse_basic_block_end, uid_cuid, - max_uid, INSN_CUID): Remove. - (struct cse_basic_block_data): Remove low_cuid and high_cuid. - (reg_used_in_multiple_bb, reg_used_in_bb): New. - (make_regs_eqv): Test reg_used_in_multiple_bb instead of cuids. - (cse_prescan_path): Remove low_cuid and high_cuid. - (mark_reg_use_bb): New. - (cse_main): Replace computation of cuids with initialization of - reg_used_in_multiple_bb. Remove references to deleted variables. - * regmove.c (copy_src_to_dest): Don't update REGNO_FIRST_UID and - REGNO_LAST_UID. - * regclass.c (reg_scan_mark_refs): Remove penultimate argument. - Don't track REGNO_FIRST_UID and REGNO_LAST_UID. - (reg_scan, reg_scan_update): Remove penultimate argument to - reg_scan_mark_refs. - -2007-02-20 Seongbae Park <seongbae.park@gmail.com> - - * sched-ebb.c (schedule_ebbs): Clear DF_LR_RUN_DCE flag - after df_analyze. - -2007-02-20 Kenneth Zadeck <zadeck@naturalbridge.com> - - * fwprop.c (forward_propagate_into): Removed call to - df_recompute_luids. - * see.c (see_free_data_structures): Ditto. - * loop-iv.c (iv_analysis_loop_init): Ditto. - * dce.c (prescan_insns_for_dse): Ditto. - * auto-inc-dec.c (merge_in_block): Moved call to - df_recompute_luids so that it only happens on subsequent passes of - block. - * df-scan.c (df_grow_insn_info): Made public. - * df.h (df_grow_insn_info): Made public. - * df-core.c: Fixed comments. - * df-problems.c (df_ur_bb_local_compute): Reversed order of - processing insns. Removed usage of seen_in_block and - seen_in_insn. Update luid. - (df_ur_local_compute, df_ur_verify_transfer_functions): Added call - to df_grow_insn_info and deleted calls to df_set_seen, df_unset_seen. - -2007-02-16 Paolo Bonzini <bonzini@gnu.org> - - * combine.c (INSN_CUID): Always look up uid_cuid. - (insn_cuid): Delete. - * sched-deps.c (sched_analyze): Don't free LOG_LINKS here. - * sched-int.h (struct dep_list): Don't mention LOG_LINKS in comment. - -2007-02-15 Paolo Bonzini <bonzini@gnu.org> - - * config/sh/sh.c (sh_reorg): Don't look at LOG_LINKS. - -2007-02-15 Paolo Bonzini <bonzini@gnu.org> - - * combine.c (find_single_use): Don't check for reload flags. - -2007-02-15 Paolo Bonzini <bonzini@gnu.org> - - Merge from mainline. - - 2007-02-15 Paolo Bonzini <bonzini@gnu.org> - - * caller-save.c (save_call_clobbered_regs): Do not process sibcalls. - -2007-02-13 Seongbae Park <seongbae.park@gmail.com> - - Merge from mainline. - - 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 Kenneth Zadeck <zadeck@naturalbridge.com> - - * lower-subregs.c (resolve_reg_notes): Added code to call - df_notes_rescan when REG_EQUAL notes are changed. - -2007-02-12 Kenneth Zadeck <zadeck@naturalbridge.com> - - * global.c (compute_regsets): Removed first two parameters. - Converted asm_clobbered to regs_asm_clobbered. - (global_alloc): Removed bad merged call to make_accurate_live_analysis. - (global_alloc, rest_of_handle_global_alloc): Removed first two - parameters from compute_regsets. - -2007-02-06 Kenneth Zadeck <zadeck@naturalbridge.com> - - * ifcvt.c (noce_process_if_block): Removed unnecessary insn deletes. - (dead_or_predictable): Removed incorrect bit vector operation. - * lower-subregs (simple_move_operand, resolve_clobber): Change from mainline. - (resolve_clobber): Added df_insn_rescan of clobber. - (decompose_multiword_subregs): Added df setup and removed debugging. - (pass_lower_subreg2): Added df cleanup. - * Makefile.in (lower-subregs.o): Added df.h dependence. - -2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org> - - * config/sh/sh.c (sh_expand_prologue): Remove unneeded brackets. - (sh_expand_epilogue): Add blockage insn when not - frame_pointer_needed. - (sh_output_mi_thunk): Don't use flow analysis here. - * config/sh/sh.md (UNSPEC_EH_RETURN): Remove. - (UNSPECV_EH_RETURN): New macro. - (sibcall_valuei): New. - (sibcall_valuei_pcrel, sibcall_value_pcrel): Likewise. - (sibcall_value_compact, sibcall_value_media): Likewise. - (sibcall_value): Use new sibcall_value* patterns. - (eh_set_ra_si): Use unspec_volatile and UNSPECV_EH_RETURN. - (eh_set_ra_di, eh_set_ra_di+1): Likewise. - -2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org> - - * mode-switching.c (create_pre_exit): Skip CLOBBER of pseudo - register for the result when not optimizing. - (optimize_mode_switching): Move df_ri_add_problem and df_analyze - calls after create_pre_exit call. - -2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org> - - * modulo-sched.c (sms_schedule): Call df_ri_add_problem - with DF_RI_LIFE. - -2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org> - - * df-scan.c (df_get_entry_block_def_set): Use struct_value_rtx - hook instead of TARGET_STRUCT_VALUE_RTX. - -2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org> - - * passes.c (init_optimization_passes): Move df_finish after - delay_slots. - -2007-01-02 Kenneth Zadeck <zadeck@naturalbridge.com> - - * optabs.c (emit_no_conflict_block): Removed redundant code to - number libcalls. - * tree-pass.h (pass_initialize_subregs): Renamed to - pass_initialize_regs. - * passes.c (init_optimization_passes): Ditto. - * builtins.c (expand_builtin_setjmp_receiver): Changed - gen_rtx_ASM_INPUT to gen_blockage. - * function.c (expand_function_end): Ditto. - * stmt.c (gen_non_local_got_receiver): Ditto. - * config/i386.md (blockage): Don't take an operand. - (prologue_use): New. - * config/i386.c (ix86_expand_prologue): Don't build a blockage - insn with an operand. If the PIC reg is used, use a prologue_use - insn to protect it from being removed. - * df-scan.c (df_get_entry_block_def_set): Generate ref for - INCOMING_RETURN_ADDR_RTX after reload_completed. - * df-core.c (df_ref_debug): Fixed formatting. - * init-regs.c: Renamed from subregs_init.c and changed to - initialize all fully uninitialized registers. - * bt-load.c (compute_defs_uses_and_gen): Changed check for - ASM_INPUT to UNSPEC_VOLATILE. - * df-problems.c (df_set_unused_notes_for_mw, - df_set_dead_notes_for_mw, df_ri_bb_compute): Cleaned up reg_notes - debugging info. - (df_set_dead_notes_for_mw): Added do_not_gen to test of all notes - dead. - * Makefile.in (subregs-init.*): Renamed to init-regs.*. - * config/arm/arm.c (arm_expand_prologue, thumb_expand_prologue): - Removed code to generate explicit uses of LR_REGNUM from prologue. - * config/arm/arm.h (EPILOGUE_USES): Made LR_REGNUM unconditionally - added. - * dce.c (deletable_insn_p): Made clobbers always live for use-def - based dce. - (prescan_insns_for_dce, prescan_insns_for_dse): Added fast - parameter to deletable_insn_p. - (run_fast_df_dce): Temporarily turn off DF_DEFER_INSN_RESCAN - during this subphase. - - -2007-02-01 Seongbae Park <seongbae.park@gmail.com> - - * df-scan.c (df_sort_and_compress_refs): - Style fix. - (df_sort_and_compress_mws): - Style fix. Fix missing & in parameters for df_mw_compare call. - -2007-02-01 Seongbae Park <seongbae.park@gmail.com> - - * df-scan.c (df_swap_refs): New function. - (df_sort_and_compress_refs, df_sort_and_compress_mws): - Avoid qsort call overhead if the array has only 2 elements - or if it's already sorted. - -2007-01-17 Eric Christopher <echristo@apple.com> - - * config/mips/mips.c (mips_output_function_epilogue): Use SET_REGNO - instead of REGNO. - (mips_output_mi_thunk): Ditto. - -2007-01-17 Eric Christopher <echristo@apple.com> - - * reorg.c (fill_simple_delay_slots): Fix prototype. - -2007-01-15 Andreas Krebbel <krebbel1@de.ibm.com> - - * regmove.c: (fixup_match_1): Call df_notes_rescan after - changing insn notes. - -2007-01-15 Andreas Krebbel <krebbel1@de.ibm.com> - - * config/s390/s390.c: Include df.h. - (s390_emit_prologue): Call df_insn_rescan when annotating constant - pool references. - -2007-01-15 Andreas Krebbel <krebbel1@de.ibm.com> - - * rtl.h (split_all_insns_noflow): Add prototype. - * recog.c (split_all_insns_noflow): Remove static. - -2007-01-14 Kenneth Zadeck <zadeck@naturalbridge.com> - * fwprop.c (update_df): Only rescan if insn has really changed. - (try_fwprop_subst): Removed call to df_set_bb_dirty. - (fwprop_init): Added new parameter to df_maybe_reorganize_use_refs. - * df-scan.c (df_scan_alloc): Removed calls to df_grow_ref_info. - (df_scan_blocks, df_ref_create, df_reg_chain_unlink, - df_maybe_reorganize_use_refs, df_maybe_reorganize_def_refs, - df_install_ref, df_install_refs, df_refs_add_to_chains): Changed - to support new modes adding refs to the df.ref_info.refs. - (df_reg_chain_unlink, df_install_ref, df_ref_create_structure, - df_hard_reg_used_p): Changed DF_REGS_EVER_LIVE to - DF_HARD_REG_LIVE. - (df_ref_remove, df_ref_create): Added call to dirty the block when - a ref is changed manually. - (df_insn_rescan, df_notes_rescan): Added bb param to - df_refs_add_to_chains. - (df_reorganize_refs): Renamed to df_reorganize_refs_by_reg. - (df_count_refs, df_add_refs_to_table, - df_reorganize_refs_by_insn_bb, df_reorganize_refs_by_insn, - df_hard_reg_used_count): New functions. - (df_drop_organized_tables): Removed. - * df_core.c (df_set_blocks, df_finish_pass): Changed - to support new modes adding refs to the df.ref_info.refs. - * df.h (df_ref_flags.DF_REGS_EVER_LIVE): Renamed to - DF_HARD_REG_LIVE. - (df_ref_order): New Enum. - (df_ref_info.{refs_organized_alone, refs_organized_with_eq_uses, - add_refs_inline}): Replaced with df_ref_info.ref_order. - (DF_REG_EVER_LIVE_P): Removed macro. - * df-problems.c (df_ru_local_compute): Added parm to - df_maybe_reorganize_use_refs. - (df_rd_local_compute): Added parm to - df_maybe_reorganize_def_refs. - -2007-01-12 Kenneth Zadeck <zadeck@naturalbridge.com> - * df-scan.c (df_collection_rec): New structure. - (df_chains): Deleted structure. - (DEBUG_DF_RESCAN): Removed conditional compilation of rescanning. - (df_scan_start_block): Added ifdefed out code that prints the - scanning of insns. - - (df_ref_create, df_get_artificial_defs, df_get_artificial_uses, - df_reg_chain_unlink, df_ref_remove, df_ref_chain_delete_du_chain, - df_ref_chain_delete, df_mw_hardreg_chain_delete, df_insn_rescan, - df_ref_chain_change_bb, df_insn_change_bb, - df_ref_change_reg_with_loc_1, df_mw_hardreg_chain_delete_eq_uses, - df_notes_rescan, df_refs_add_to_chains, df_ref_create_structure, - df_ref_record, df_def_record_1, df_defs_record, df_uses_record, - df_get_conditional_uses, df_insn_refs_collect, df_recompute_luids, - df_bb_refs_collect, df_entry_block_defs_collect, - df_update_entry_block_defs, df_exit_block_uses_collect, - df_record_exit_block_uses, df_update_exit_block_uses, - df_compute_regs_ever_live, df_reg_chain_mark, - df_reg_chain_verify_unmarked, df_insn_refs_verify, df_bb_verify, - df_scan_verify): Changed to use vector rep for refs. - (df_get_call_refs) Ditto plus fixed bug where clobber ref was - generated for same ref as result of call. - (df_reg_chain_create, df_ref_unlink, df_ref_chain_find_ref, - df_ref_chain_find_ref_by_regno, df_ref_chain_append, - df_ref_find_chains, df_ref_add_to_chains, df_insn_refs_record, - df_ref_chain_verify_and_unmark, df_ref_chain_free, df_ref_verify, - df_mw_hardreg_find_hardreg): Deleted function. - (df_ref_compress_rec, df_free_collection_rec, df_ref_compare, - df_sort_and_compress_refs, df_mw_compare, df_sort_and_compress_mws - df_canonize_collection_rec, df_install_ref, df_install_refs, - df_refs_verify, df_mws_verify): New function. - (df_ref_is_equal): Renamed to df_ref_equal_p and changed to use - vector rep for refs. - (df_mw_is_equal): Renamed to df_mw_equal_p and changed to use - vector rep for refs. - * df.h (df_ref_flags.(DF_REF_MW_HARDREG_GROUP, DF_REF_REF_MARKER): - Removed. - (df_ref_flags.(DF_REF_REG_MARKER, DF_REGS_EVER_LIVE)): Renumbered. - (df_mw_hardreg.(loc, start_regno, end_regno, mw_order)): New - fields. - (df_insn_info.(defs, uses, eq_uses, mw_hardregs): Made into arrays - of pointers. - (df_scan_bb_info.(artificial_defs, artificial_uses): Ditto. - (df_ref.ref_order): New field. - (df_ref.next): Removed. - (df.ref_order): New field. - (DF_REF_REF_MARK, DF_REF_REF_UNMARK, DF_REF_IS_REF_MARKED, - DF_REF_NEXT_REF): Removed macro. - (DF_REF_ORDER): New macro. - * df-core.c (df_bb_regno_last_use_find, df_bb_regno_last_use_find, - df_bb_regno_first_def_find, df_bb_regno_last_def_find, - df_insn_regno_def_p, df_find_def, df_find_use, df_refs_chain_dump, - df_mws_dump, df_insn_uid_debug, df_insn_debug): Ditto. - * fwprop.c (update_df): Do not call df_insn_rescan unless insn has - changed. - (local_ref_killed_between_p, all_uses_available_at, - find_occurrence, update_df): Changed to use - vector rep for refs. - * see.c (see_handle_relevant_refs, see_update_relevancy, - see_propagate_extensions_to_uses): Ditto. - * auto-inc-dec.c (find_inc, merge_in_block): Ditto. - * web.c (union_defs, web_main): Ditto. - * global.c (compute_regs_asm_clobbered): Ditto. - * ifcvt.c (dead_or_predicable): Ditto. - * loop-invariant.c (find_defs, check_dependency, - find_invariant_insn): Ditto. - * combine.c (create_log_links): Ditto. - * df-problems.c (df_ru_alloc, df_ru_bb_local_compute_process_def, - df_ru_bb_local_compute_process_use, df_rd_alloc, - df_rd_bb_local_compute_process_def, df_lr_bb_local_compute, - df_lr_simulate_artificial_refs_at_end, df_lr_simulate_one_insn, - df_ur_bb_local_compute, df_urec_bb_local_compute, - df_urec_bb_local_compute, df_chain_remove_problem, - df_chain_remove_problem, df_chain_reset, - df_chain_create_bb_process_use, df_chain_create_bb, - df_chain_top_dump, df_chain_top_dump, df_chain_bottom_dump, - df_set_unused_notes_for_mw, df_set_dead_notes_for_mw, - df_ri_bb_compute): Ditto. - * dce.c (delete_corresponding_reg_eq_notes, mark_artificial_uses, - mark_reg_dependencies, dce_process_block): Ditto. - - - -2007-01-10 Seongbae Park <seongbae.park@gmail.com> - * df-core.c (df_worklist_propagate_backward, - df_worklist_dataflow)): More comments. - (df_iterative_dataflow): Whitespace fixup. - * cfganal.c (inverted_post_order_compute): - More comments and rename a local variable DEST to PRED. - (df_find_deadend): More comments. Use gcc_unreachable(). - -2007-01-09 Seongbae Park <seongbae.park@gmail.com> - * df-core.c (rest_of_handle_df_initialize): Allocate and free new - fields struct dataflow::{postorder_inverted,n_blocks_inverted}. - (df_hybrid_search_forward, df_hybrid_search_backward): Pass visited, - pending, considered as parameters instead of fields of struct df. - (df_worklist_propagate_forward, df_worklist_propagate_backward, - df_worklist_dataflow): New functions. - (df_iterative_dataflow): Remove visited, pending, considered - fields from struct dataflow. - (df_analyze): Allocate and free new fields - df::{postorder_inverted,n_blocks_inverted}. - (df_get_n_blocks, df_get_postorder): Make them return - different values depending on the direction of the dataflow problem. - (df_simple_dataflow): Renamed from df_simple_iterative_dataflow. - Call df_worklist_dataflow instead of df_iterative_dataflow. - * cfganal.c (dfs_find_deadend, inverted_post_order_compute): - New functions. - * df.h (struct dataflow): Remove fields visited, pending, considered. - Add new fields postorder_inverted, n_blocks_inverted. - (df_get_nblocks, df_get_postorder): Prototype change. - (df_simple_dataflow): Renamed from df_simple_iterative_dataflow. - (df_worklist_dataflow): New function prototype. - * df-problems.c: Use df_worklist_dataflow instead of - df_iterative_dataflow for solver. - * basic-block.h (inverted_post_order_compute): New function prototype. - * dce.c (dce_process_block): Pass extra parameter to df_get_n_blocks - and df_get_postorder. - (calculate_reaching_stores): Call df_simple_dataflow, - renamed from df_simple_iterative_dataflow. - - -2007-01-05 Kenneth Zadeck <zadeck@naturalbridge.com> - * see.c (see_update_defs_relevancy): Type fixed. - * df-scan.c (df_reg_chain_unlink, df_ref_verify): Made tolerant of - refs table not being there. - (df_drop_organized_tables): New function. - * df-core.c (df_finish_pass): Drop refs tables after each pass. - * web.c (web_main): Reorganized access to not use ref tables and - go in order of insns. - * df.h (df_drop_organized_tables): New function. - * df-problems.c (df_chain_start_dump): Deleted function. - (df_chain_top_dump, df_chain_bottom_dump): New functions. - -2007-01-03 Kenneth Zadeck <zadeck@naturalbridge.com> - * see.c (see_initialize_data_structures): Does not use - DF_USES_TABLE_SIZE or DF_DEFS_TABLE_SIZE. - (see_handle_relevant_defs, see_handle_relevant_uses): Removed - outer loop. Now a subrouting of see_handle_relevant_refs. - (see_handle_relevant_refs, see_update_relevancy): New functions - that now loops over insns. - (see_update_uses_relevancy, see_update_defs_relevancy): Removed - outer loop. Now a subroutine of see_update_relevancy. - (see_analyze_one_def): Removed unnecessary tests. - (see_propagate_extensions_to_uses): Now iterates over insns and - calls see_handle_relevant_refs and see_update_relevancy. - * df-scan.c (df_reg_chain_unlink, df_insn_delete): Added code to - skip the chain field of refs if the chain problem is not active. - (df_scan_verify): Moved verification of the - out_of_date_transfer_functions fields into the problem verifiers. - * df-core.c (df_set_blocks): More logging. - (df_finish_pass): Moved around when recanning is done. - (rest_of_handle_df_initialize): Moved creation of - handles out_of_date_transfer_functions to the problems. - (df_set_bb_dirty, df_clear_bb_dirty, df_compact_blocks): Now - handles out_of_date_transfer_functions in any problem. - * df.h: Added comments. - * df-problems.c (df_lr_add_problem, df_ur_add_problem, - df_chain_add_problem): Allocates out_of_date_transfer_functions. - (df_lr_verify_transfer_functions, - df_ur_verify_transfer_functions): Now verifies - out_of_date_transfer_functions. - (df_chain_remove_problem): Tears down problem by looping over - insns. - (df_chain_fully_remove_problem, df_chain_free): Frees - out_of_date_transfer_functions. - (df_chain_create_bb): Sets out_of_date_transfer_functions. - - -2007-01-02 Kenneth Zadeck <zadeck@naturalbridge.com> - * df-scan.c (df_reg_chain_create, df_reg_chain_unlink, - df_ref_create_structure, df_hard_reg_used_p): Added code to - process df->hard_regs_live_count. - (df_ref_is_record_live, df_reg_chain_find_ref): Deleted. - (df_refs_add_to_chains): Removed ifdefed code. - (df_compute_regs_ever_live): Fixed "&" vs "&&" problem. - * df-core (rest_of_handle_df_initialize, - rest_of_handle_df_finish): Added code to - process df->hard_regs_live_count. - * global.c (global_alloc): Repositioned use of urec problem. - (build_insn_chain): Changed use of DF_RA_LIVE_TOP to df_get_live_top. - (rest_of_handle_global_alloc): Removed call to df_analyze for no - optimize case. - * local-alloc.c (update_equiv_regs): Added calls to - df_notes_rescan where eq notes are hacked. - (block_alloc): Changed DF_RA_LIVE_TOP to DF_LR_TOP. - (rest_of_handle_local_alloc): Removed addition of urec problem. - * function.c (regno_clobbered_at_setjmp): Changed df_get_live_out - to DF_LIVE_OUT. - * (df_ref_flags.DF_REGS_EVER_LIVE): New flag. - (df.hard_regs_live_count): New bitmap. - (DF_LR_TOP, DF_REG_EVER_LIVE_P): New macro. - (df_get_live_out): Removed. - (df_get_live_top): Added. - * df-problems.c (df_get_live_in): Does not look at DF_LIVE. - (df_get_live_out): Deleted. - (df_get_live_top): Added. - * config/sh/sh.c (calc_live_regs): Changed regs_ever_live to - df_regs_ever_live_p. - * config/mn10300/mn10300.c (fp_regs_to_save): Ditto. - * reload1.c (reload): Corrected the set of bitmaps to modify after - reloading. - - -2007-01-01 Eric Christopher <echristo@apple.com> - - * config/darwin.c: Include df.h. - (machopic_legitimize_pic_address): Use - df_set_regs_ever_live. - -2006-12-28 Kenneth Zadeck <zadeck@naturalbridge.com> - * regs.h: (regs_ever_live, regs_asm_clobbered): Removed. - * final.c (regs_ever_live, regs_asm_clobbered): Removed. - (only_leaf_regs_used, leaf_renumber_regs_insn): Encapsulated - references to regs_ever_live. - * global.c (insn_contains_asm_1, insn_contains_asm, - compute_regs_asm_clobbered): New functions. - (global_alloc): Added call to compute_regs_asm_clobbered and - encapsulated references to regs_ever_live. - (dump_global_regs): Encapsulated references to regs_ever_live. - (rest_of_handle_global_alloc): Changed call to df_scan_alloc. - * regrename.c (regrename_optimize, regrename_optimize): Encapsulated - references to regs_ever_live. - * recog.c (peep2_find_free_register): Ditto. - * rtl-factoring (recompute_gain_for_pattern_seq, - abstract_best_seq): Ditto. - * bt-load.c (move_btr_def, migrate_btr_defs): Ditto. - * reg_stack.c (reg_to_stack): Ditto. - * config/alpha/alpha.c (alpha_ra_ever_killed, alpha_sa_mask, - alpha_sa_size): Ditto. - * config/frv/frv.c (frv_stack_info, frv_function_prologue): Ditto. - * config/s390/390.c (legitimize_pic_address, - legitimize_tls_address, find_unused_clobbered_reg, - s390_regs_ever_clobbered, s390_register_info, - s390_init_frame_layout, s390_update_frame_layout, - s390_emit_prologue): Ditto. - * config/m32c/m32.c (need_to_save): Ditto. - * config/spu/spu.c (spu_split_immediate): Ditto. - * config/sparc/sparc.c (sparc_compute_frame_size, - sparc_output_scratch_registers, save_or_restore_regs, - order_regs_for_local_alloc): Ditto. - * config/m32r/m32r.c (MUST_SAVE_FRAME_POINTER, - MUST_SAVE_RETURN_ADDR, m32r_hard_regno_rename_ok): Ditto. - * config/i386/i386.h (ix86_current_function_calls_tls_descriptor): - Ditto. - * config/i386/i386.c (ix86_select_alt_pic_regnum, ix86_save_reg, - ix86_expand_prologue, legitimize_pic_address, - legitimize_tls_address): Ditto. - * config/sh/sh.c (calc_live_regs, sh_media_register_for_return, - sh_expand_prologue, sh_hard_regno_rename_ok): Ditto. - * config/pdp11/pdp11.c (pdp11_output_function_prologue, - pdp11_output_function_epilogue): Ditto. - * config/pdp11/pdp11.h (may_call_alloca): Ditto. - * config/avr/avr.c (avr_regs_to_save, sequent_regs_live, - avr_peep2_scratch_safe): Ditto. - * config/crx/crx.h (HARD_REGNO_RENAME_OK): Ditto. - * config/crx/crx.c (crx_compute_save_regs): Ditto. - * config/c4x/c4x.c (c4x_isr_reg_used_p, c4x_expand_prologue, - c4x_null_epilogue_p): Ditto. - * config/c4x/c4x.h (reg_class): Ditto. - * config/stormy16/stormy16.c (REG_NEEDS_SAVE): Ditto. - * config/fr30/fr30.c (MUST_SAVE_FRAME_POINTER, - MUST_SAVE_RETURN_POINTER): Ditto. - * config/m68hc11/m68hc11.c (m68hc11_initial_elimination_offset, - m68hc11_total_frame_size, expand_prologue): Ditto. - * config/cris/cris.c (cris_reg_saved_in_regsave_area, - cris_return_addr_rtx): Ditto. - * config/iq2000/iq2000.h (MUST_SAVE_REGISTER): Ditto. - * config/iq2000/iq2000.c (iq2000_can_use_return_insn): Ditto. - * config/mt/mt.c (mt_compute_frame_size): Ditto. - * config/mt/mt.h (save_direction): Ditto. - * config/mn10300/mn10300.c (REG_SAVE_BYTES, can_use_return_insn, - mn10300_get_live_callee_saved_regs, expand_prologue, - initial_offset): Ditto. - * config/ia64/ia64.c (find_gr_spill, ia64_compute_frame_size): - Ditto. - * config/m68k/m68k.c (m68k_save_reg, m68k_hard_regno_rename_ok): - Ditto. - * config/rs6000/rs6000.c (rs6000_got_register, first_reg_to_save, - first_fp_reg_to_save, first_altivec_reg_to_save, - compute_vrsave_mask, rs6000_stack_info, create_TOC_reference, - rs6000_emit_prologue): Ditto. - * config/rs6000/rs6000.h (HARD_REGNO_RENAME_OK): Ditto. - * config/arc/arc.c (MUST_SAVE_REGISTER, MUST_SAVE_RETURN_ADDR): - Ditto. - * config/mcore/mcore.c (calc_live_regs): Ditto. - * config/score/score-mdaux.c (score_save_reg_p): Ditto. - * config/arm/arm.c (use_return_insn, thumb_find_work_register, - arm_compute_save_reg0_reg12_mask, arm_compute_save_reg_mask, - arm_get_vfp_saved_size, arm_output_epilogue, thumb_force_lr_save, - arm_get_frame_offsets, arm_expand_prologue, thumb_far_jump_used_p, - thumb_unexpanded_epilogue, thumb_expand_epilogue): Ditto. - * config/arm/arm.h (HARD_REGNO_RENAME_OK): Ditto. - * config/pa/pa.c (compute_frame_size, pa_output_function_prologue, - hppa_expand_prologue, hppa_expand_epilogue, - hppa_can_use_return_insn_p, output_lbranch): Ditto. - * config/pa/pa.h (HARD_REGNO_RENAME_OK): Ditto. - * config/mips/mips.c (mips_global_pointer, mips_save_reg_p, - mips_can_use_return_insn, build_mips16_call_stub): Ditto. - * config/vax/vax.c (vax_output_function_prologue): Ditto. - * config/v850/v850.c (substitute_ep_register, - compute_register_save_size): Ditto. - * config/h8300/h8300.c (byte_reg, h8300_hard_regno_rename_ok): - Ditto. - * config/mmix/mmix.c (MMIX_CFUN_NEEDS_SAVED_EH_RETURN_ADDRESS, - mmix_initial_elimination_offset, mmix_reorg, - mmix_use_simple_return, mmix_expand_prologue, - mmix_expand_epilogue): Ditto. - * config/bfin/bfin.c (n_dregs_to_save, n_pregs_to_save, - n_regs_saved_by_prologue, expand_interrupt_handler_prologue, - expand_interrupt_handler_epilogue, bfin_hard_regno_rename_ok): - Ditto. - * reload1.c (reload, mark_home_live, spill_hard_reg, - finish_spills): Ditto. - * df-scan.c (regs_ever_live): Added as local var. - (df_scan_free_internal): Delete bitmap. - (df_scan_free_bb_info): Inlined code from removed df_bb_delete. - (df_scan_alloc): Removed blocks_to_rescan param and reference to - out_of_date_transfer_functions and added insns_to_notes_rescan. - (df_scan_free): Removed reference to - out_of_date_transfer_functions. - (df_scan_start_dump, df_scan_start_block): Added ";;" in front of - debugging lines. - (problem_SCAN): Added extra null fields. - (df_scan_blocks): Added code to set entry and exit blocks as - dirty. - (df_insn_delete): Added basic block parameter and support for - insns_to_notes_rescan. - (df_bb_delete): Removed. - (df_insn_rescan, df_insn_rescan_all, df_process_deferred_rescans, - df_notes_rescan): Added support for insns_to_notes_rescan. - (df_insn_rescan, df_insn_rescan_all, df_process_deferred_rescans): - Added extra parameter to df_insn_delete. - (df_process_deferred_rescans): Added support to fixup entry and - exit blocks if regs_ever_live changes. - (df_insn_change_bb): Added debugging. - (df_ref_change_reg_with_loc_1): Added code to dirty the block. - (df_insn_contains_asm_1, df_insn_contains_asm): Function moved to - global.c. - (df_insn_refs_record): Removed code to set insn_contains_asm. - (df_bb_refs_record): Now sets itself dirty. - (df_get_entry_block_def_set, df_get_exit_block_use_set): - Encapsulated references to regs_ever_live. - (df_update_entry_block_defs, df_update_exit_block_uses): Added - finer grained control on dirtying the block. - (df_regs_ever_live_p, df_set_regs_ever_live): New functions. - (df_compute_regs_ever_live): New reset parameter. - (df_verify_blocks): Renamed to df_scan_verify and added more - checking code. - * df-core.c (df_add_problem): Initialized solutions_dirty. - (df_finish_pass): Added calls to verify transfer functions. - (rest_of_handle_df_initialize): Added more initialization for - persistent structures. - * (df_hybrid_search_forward, df_hybrid_search_backward, - df_iterative_dataflow, df_analyze_problem): Removed single_pass parameter. - (df_analyze_problem): Added checking for results of dataflow. - (df_analyze): Added more debugging and removed changing - out_of_date_transfer functions. - (df_get_bb_dirty, df_set_bb_dirty, df_compact_blocks): Supports - each problem having it own incremental - status bits. - (df_clear_bb_dirty, df_verify, df_compute_cfg_image, - df_check_cfg_clean, df_set_clean_cfg): New function. - (df_compact_blocks, df_bb_replace): More debugging. - *df.h (df_alloc_function, df_local_compute_function): Removed - blocks_to_scan parameter. - (df_dataflow_function): Removed single_pass parameter. - (df_verify_solution_start, df_verify_solution_end): New function - types. - (dataflow.out_of_date_transfer_functions, - dataflow.solutions_dirty): Moved from df structure so each problem - could have its own copy. - (df_insn_info.contains_asm, DF_INSN_CONTAINS_ASM): Functionality - moved into global.c. - (df.solutions.dirty, out_of_date_transfer_functions): Moved to - struct dataflow. - (df.redo_entry_and_exit, df.insns_to_notes_rescan): New fields. - (DF_DEBUG_CFG): Flag to control code to check if cfg modifications - are being reported to df. - * df-problems.c (df_print_bb_index, df_lr_top_dump, - df_lr_bottom_dump, df_ur_top_dump, df_ur_bottom_dump): Cleanup - more dump info. - (df_ru_alloc, df_ru_local_compute, df_rd_alloc, - df_rd_local_compute, df_lr_alloc, df_lr_local_compute, - df_ur_alloc, df_ur_local_compute, df_live_alloc, df_urec_alloc, - df_urec_local_compute, df_chain_alloc, df_ri_alloc, - df_ri_compute): Removed blocks_to_rescan parameter. - (problem_RU, problem_RD, problem_LR, problem_UR, problem_LIVE, - problem_UREC, problem_RI): Added two new fields. - (df_lr_problem_data, df_ur_problem_data): New data structure to - support checking of dataflow solutions. - (df_lr_alloc, df_lr_local_compute, df_ur_alloc, - df_ur_local_compute, df_ur_free): Now processes only out of date blocks. - (df_lr_reset, df_lr_verify_solution_start, - df_lr_verify_solution_end, df_lr_verify_transfer_functions, - df_ur_reset, df_ur_local_finalize, df_ur_verify_solution_start, - df_ur_verify_solution_end, df_ur_verify_transfer_functions): New function. - (df_lr_bb_local_compute, df_lr_local_compute): Moved asm scanning to global.c. - (df_lr_local_finalize, df_lr_free, df_live_local_finalize): Added - code to support incremental checking of dataflow solution. - * passes.c (pass_free_cfg): Moved to before machine_reorg. - * cfgrtl.c (rtl_delete_block, rtl_merge_blocks, - cfg_layout_merge_blocks): Changed df_delete_basic_blocks to - df_bb_delete. - (update_bb_for_insn): Changed df_insn_rescan to df_insn_change_bb. - (force_nonfallthru_and_redirect): Added call to - df_mark_solutions_dirty. - * dce.c (dce_process_block): Added more checking code and made the - code closer to the functionality in df_lr. - (fast_dce): Now skips entry and exit blocks. Deleted last parm to - df_analyze_problem and removed changed bitmap. - * fwprop.c (update_df, try_fwprop_subst): Added calls to df_set_bb_dirty. - * cfg.c (connect_src, connect_dest, disconnect_src, - disconnect_dest): Added calls to df_mark_solutions_dirty. - * haifa-sched.c (move_succs): Ditto. - * ifcvt.c (find_cond_trap): Moved calls to df_set_bb_dirty to - before deletion of basic block. - * emit-rtl.c (set_insn_deleted, remove_insn): Added basic block - parm. - * regclass.c (regclass_init): Added reset parm to df_compute_res_ever_live. - - -2006-12-28 Kenneth Zadeck <zadeck@naturalbridge.com> - * local_alloc.c (rest_of_handle_local_alloc): changed - extra_warnings to warn_clobbered. - -2006-12-25 Kenneth Zadeck <zadeck@naturalbridge.com> - * dce.c (delete_corresponding_reg_eq_notes): Added comment. - (delete_unmarked_insns): Added code to delete noop moves - inside of libcalls. Changed to used delete_insn_and_edges. - -2006-12-22 Andrew Pinski <andrew_pinski@playstation.sony.com> - - * config/spu/spu.c (immediate_load_p): Change usage of - flow2_completed over to epilogue_completed. - -2006-12-22 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-problems.c (df_ru_start_dump, df_ru_top_dump, - df_ru_bottom_dump, df_rd_start_dump, df_rd_top_dump, - df_rd_bottom_dump, df_lr_top_dump, df_lr_bottom_dump, - df_ur_top_dump, df_ur_bottom_dump, df_live_top_dump, - df_urec_top_dump, df_urec_bottom_dump, df_chain_start_dump, - df_ri_start_dump): Added ";; " to the beginning of dataflow - information put in dump files. - * dce.c (marked_libcalls, delete_unmarked_insns): Removed. - (prescan_insns_for_dce, mark_libcall, dce_process_block, - prescan_insns_for_dse): Replaced libcall marking mechanism. - (init_dce, end_dce, end_fast_dce, run_fast_df_dce): Removed - marked_libcalls. - -2006-12-16 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regrename.c (mrege_overlapping_regs): Removed df parameter - and changed calls to df_ routines to support new incremental - scanning. - * sched_ebb (schedule_ebbs): Removed return value and changed - calls to df_ routines to support new incremental scanning. - * fwprop.c (local_ref_killed_between_p, use_killed_between, - all_uses_available_at, update_df, try_fwprop_subst, fwprop, - fwprop_addr): Removed df parameter and changed calls to df_ - routines to support new incremental scanning. - (gate_fwprop, gate_fwprop_addr): Reenabled pass. - * doc/cfg.texi: Updated liveness info documentation. - * doc/rtl.texi: Updated liveness info documentation. - * see.c (see_initialize_data_structures, see_emit_use_extension, - see_commit_changes, see_analyze_merged_def_local_prop, - see_analyze_use_local_prop, see_set_prop_merged_def, - see_set_prop_unmerged_use, see_store_reference_and_extension, - see_handle_relevant_defs, see_handle_relevant_uses, - see_update_uses_relevancy, see_propagate_extensions_to_uses, - pass_see): Removed df parameter and changed calls to df_ routines - to support new incremental scanning. - * postreload.c (reload_cse_simplify_operands): Changed REGNO to - SET_REGNO. - (reload_combine): Removed df parameter and changed calls to df_ - routines to support new incremental scanning. - * tree.h (generate_setjmp_warnings): Removed df parameter. - * reload.c (push_reload, find_dummy_reload): Removed df parameter - and changed calls to df_ routines to support new incremental - scanning. - * tree-pass.h (pass_df_initialize, pass_df_finish): New passes. - * rtlanal.c (remove_note): Call df_notes_rescan if the - REG_EQUAL/EQUIV notes change. - * ddg.c (add_deps_for_def, add_deps_for_use, - add_inter_loop_mem_dep): Removed df parameter and changed calls to - df_ routines to support new incremental scanning. - * ddg.h (struct df) Removed. - * final.c (cleanup_subreg_operands): Added call df_insn_rescan if - insn changes. - (walk_alter_subreg): Added changed parameter to track changes. - (output_address): Added changed parameter to walk_alter_subreg. - * cfg.c (compact_blocks, dump_bb_info): Removed df parameter to df_ - calls. - * auto_inc_dec.c (attempt_changed): Moved call to - df_recompute_luids so that it is only called when moves are added. - (find_inc, merge_in_block, rest_of_handle_auto_inc_dec): Removed - df parameter and changed calls to df_ routines to support new - incremental scanning. - (merge_in_block): Added call to df_recompute_luids. - * reorg.c (delete_from_delay_slot, relax_delay_slots): Added basic - block parm to add_insn_after. - (fill_simple_delay_slots, fill_slots_from_thread, - fill_eager_delay_slots, make_return_insns, dbr_schedule): Removed - df parameter and changed calls to df_ routines to support new - incremental scanning. - * df-scan.c (struct df_reg_chains): Removed. - (df_scan_free_internal, df_scan_free_internal, - df_scan_free_bb_info, df_scan_alloc, df_scan_free, - df_scan_start_dump, df_scan_add_problem, df_grow_reg_info, - df_check_and_grow_ref_info, df_grow_insn_info, df_scan_blocks, - df_ref_create, df_scan_alloc, df_scan_start_block, - df_scan_add_problem, df_grow_reg_info, df_check_and_grow_ref_info, - df_grow_insn_info, df_scan_blocks, df_ref_create, - df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink, - df_ref_remove, df_insn_create_insn_record, - df_ref_chain_delete_du_chain, df_ref_chain_delete, df_insn_delete, - df_bb_delete, df_insn_rescan, df_reorganize_refs, - df_insn_change_bb, df_maybe_reorganize_use_refs, - df_maybe_reorganize_def_refs, df_reg_chain_find_ref, - df_ref_find_chains, df_ref_add_to_chains, df_refs_add_to_chains, - df_ref_create_structure, df_ref_record, df_def_record_1, - df_defs_record, df_uses_record, df_get_conditional_uses, - df_get_call_refs, df_get_call_refs, df_insn_refs_collect, - df_insn_refs_record, df_recompute_luids, df_bb_refs_collect, - df_bb_refs_record, df_bb_refs_record, df_mark_reg, - df_get_entry_block_def_set, df_entry_block_defs_collect, - df_record_entry_block_defs, df_update_entry_block_defs, - df_exit_block_uses_collect, df_record_exit_block_uses, - df_update_exit_block_uses, df_compute_regs_ever_live, - df_reg_chain_unmark, df_ref_chain_free, df_ref_verify, - df_ref_verify, df_insn_refs_verify, df_bb_verify, - df_exit_block_bitmap_verify, df_entry_block_bitmap_verify, - df_verify_blocks): Removed df and dflow parameters and changed - calls to df_ routines to support new incremental scanning. - (df_ref_chain_unmark): Renamed to df_ref_chain_verify_and_unmark. - (df_scan_get_bb_info, df_scan_set_bb_info): Made tolerant of - missing basic block info. - (df_insn_rescan_all, df_process_deferred_rescans, - df_ref_chain_find_ref_by_regno, df_ref_change_reg_with_loc_1, - df_ref_change_reg_with_loc, - df_mw_hardreg_chain_delete_eq_uses, df_notes_rescan, - df_update_entry_exit_and_calls, df_hard_reg_used_p, - df_mw_hardreg_find_hardreg): New function. - (df_ref_is_pointer_equal, df_bb_refs_verify): Deleted function. - * haifa_sched.c (move_insn): Removed df parameter and changed calls to - df_ routines to support new incremental scanning. - * df-core.c (df_init): Deleted function. - (df): New static instance of dataflow. - (df_add_problem, df_remove_problem, df_set_flags, df_clear_flags, - df_set_blocks, df_delete_basic_block, df_hybrid_search_forward, - df_hybrid_search_backward, df_iterative_dataflow, - df_analyze_problem, df_analyze, df_get_n_blocks, df_get_postorder, - df_mark_solutions_dirty, df_get_bb_dirty, df_set_bb_dirty, - df_compact_blocks, df_bb_replace, df_bb_regno_last_use_find, - df_bb_regno_first_def_find, df_bb_regno_last_def_find, - df_insn_regno_def_p, df_find_def, df_reg_defined, df_find_use, - df_reg_used, df_dump, df_dump_start, df_dump_top, df_dump_bottom, - df_regs_chain_dump, df_insn_uid_debug, df_insn_debug, - df_insn_debug_regno, df_regno_debug, debug_df_insn, debug_df_reg, - debug_df_defno, debug_df_useno): Removed df parameter and - changed calls to df_ routines to support new incremental scanning. - (df_finish1): Deleted function. - (df_remove_problem, df_finish_pass, rest_of_handle_df_initialize, - rest_of_handle_df_finish): New function. - (pass_df_finish, pass_df_initialize): New passes. - * mode-switching.c (optimize_mode_switching): Removed df parameter and - changed calls to df_ routines to support new incremental scanning. - * modulo-sched.c (sms_schedule): Removed df parameter and - changed calls to df_ routines to support new incremental scanning. - (add_insn_before): Added extra parameter to add_insn_before. - * caller-save.c (init_caller_save): Changed REGNO to SET_REGNO. - * cse.c (cse_main): Disabled incremental df update during this - pass. - * web.c (union_defs, replace_ref, web_main, pass_web): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * loop-init.c (rtl_unroll_and_peel_loops, - pass_rtl_move_loop_invariants): Removed df parameter and changed - calls to df_ routines to support new incremental scanning. - * global.c (global_alloc, global_conflicts, retry_global_alloc, - mark_elimination, build_insn_chain, rest_of_handle_global_alloc): - Removed df parameter and changed calls to df_ routines to support - new incremental scanning. - * ifcvt.c (, find_if_header, find_if_case_1, find_if_case_2, - dead_or_predicable, if_convert, pass_rtl_ifcvt, - pass_if_after_combine, pass_if_after_reload): Removed df parameter - and changed calls to df_ routines to support new incremental - scanning. - * expr.c (init_expr_once): Changed REGNO to SET_REGNO. - * recog.c (peephole2_optimize, pass_split_all_insn): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * regmove.c (mark_flags_life_zones, optimize_reg_copy_2, - regmove_optimize, rest_of_handle_stack_adjustments): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * local-alloc.c (block_alloc, rest_of_handle_local_alloc): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * function.c (regno_clobbered_at_setjmp, setjmp_vars_warning, - setjmp_args_warning, generate_setjmp_warnings, - keep_stack_depressed, thread_prologue_and_epilogue_insns, - epilogue_done, rest_of_handle_thread_prologue_and_epilogue): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * function.h (df): Deleted variable. - * df.h (DF_RU, DF_RD, DF_LR, DF_UR, DF_LIVE): Renumbered to put - permanent problems before optional problems. - (DF_FIRST_OPTIONAL_PROBLEM): New symbol. - (df_ref_flags.DF_REF_REF_MARKER, df_ref_flags.DF_REF_REG_MARKER): New flag. - (df_ref_flags.DF_REF_ARTIFICIAL, df_ref_flags.DF_REF_MARKER): - Deleted flag. - (df_alloc_function, df_reset_function, df_free_bb_function, - df_local_compute_function, df_init_function, df_dataflow_function, - df_confluence_function_0, df_confluence_function_n, - df_transfer_function, df_finalizer_function, df_free_function, - df_remove_problem_function, df_dump_problem_function, - df_dump_bb_problem_function, DF_SCAN_BB_INFO, DF_RU_BB_INFO, - DF_RD_BB_INFO, DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_BB_INFO, - DF_LIVE_IN, DF_LIVE_OUT, DF_RA_LIVE_IN, DF_RA_LIVE_OUT, - DF_RA_LIVE_TOP, DF_LR_IN, DF_LR_OUT, DF_UR_IN, DF_UR_OUT, - DF_DEFS_GET, DF_DEFS_SET, DF_DEFS_COUNT, DF_DEFS_BEGIN, - DF_USES_GET, DF_USES_SET, DF_USES_COUNT, DF_USES_BEGIN, - DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_CHAIN, DF_REG_DEF_COUNT, - DF_REG_USE_GET, DF_REG_USE_CHAIN, DF_REG_USE_COUNT, - DF_REG_EQ_USE_GET, DF_REG_EQ_USE_CHAIN, DF_REG_EQ_USE_COUNT, - DF_REGNO_FIRST_DEF, DF_REGNO_LAST_USE, DF_REGNO_FIRST_DEF, - DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET, - DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES, - DF_INSN_EQ_USES, DF_INSN_UID_GET, DF_INSN_UID_SAFE_GET, - DF_INSN_UID_LUID, DF_INSN_UID_DEFS, DF_INSN_UID_USES, - DF_INSN_UID_EQ_USES, DF_INSN_UID_MWS): Removed df or dflow - parameter and changed calls to df_ routines to support new - incremental scanning. - (DF_DEFS_SIZE, DF_USES_SIZE): Renamed to DF_DEFS_TABLE_SIZE and - DF_USES_TABLE_SIZE. - (DF_DEFS_TOTAL_SIZE, DF_USES_TOTAL_SIZE, df_scan, df_ru, df_rd, - df_lr, df_ur, df_live, df_urec, df_chain, df_ri, - DF_DEFS_TOTAL_SIZE, DF_USES_TOTAL_SIZE): New macros. - (dataflow.df): Removed field. - (df_ref_info.bitmap_size): Split into df_ref_info.table_size and - df_ref_info.total_size. - (dataflow.local_flags, df_insn_info.insn, - df_changeable_flags.DF_DEFER_INSN_RESCAN, df_ref_info.count, - df.insns_to_rescan, df.insns_to_delete): New field. - (df_permanent_flags): Split into df_chain_flags and df_ri_flags. - * gcse (try_replace_reg, adjust_libcall_notes, - update_ld_motion_stores): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - (insert_insn_end_basic_block, insert_insn_start_basic_block): - Added bb parameter to emit_insn_before_noloc. - * rtl-factoring.c (match_seqs, collect_pattern_seqs, - collect_pattern_seqs, clear_regs_live_in_seq, - recompute_gain_for_pattern_seq,, recompute_gain, - split_blocks_after_seqs, split_pattern_seq, erase_matching_seqs, - abstract_best_seq, rtl_seqabstr): Removed df parameter and changed - calls to df_ routines to support new incremental scanning. - * expmed.c (init_expmed): Changed REGNO to SET_REGNO. - * bt-load.c (, compute_defs_uses_and_gen, build_btr_def_use_webs, - migrate_btr_defs, branch_target_load_optimize, - pass_branch_target_load_optimize1, - pass_branch_target_load_optimize1): Removed df parameter and changed - calls to df_ routines to support new incremental scanning. - * emit-rtl.c (add_insn_after, add_insn_before, - emit_insn_before_noloc, emit_insn_after_1, - emit_insn_after_noloc): Added basic block parameter and threaded - it to subcalls. - (emit_jump_insn_before_noloc, - emit_call_insn_before_noloc, emit_barrier_before, - emit_label_before, emit_note_before, emit_call_insn_after_noloc, - emit_jump_insn_after_noloc, emit_label_after, emit_note_after, - emit_insn_after_setloc, emit_insn_before_setloc): Add NULL basic - block parameter to certain subcalls. - (set_unique_reg_note): Now calls df_notes_rescan if REG_EQUAL or - REG_EQUIV notes change. - * loop-invariant.c (check_invariant_table_size, - hash_invariant_expr_1, invariant_expr_equal_p, find_defs, - check_dependencies, record_uses, find_invariants_to_move, - move_invariant_reg, fail, free_inv_motion_data, - move_loop_invariants): Removed df parameter and changed - calls to df_ routines to support new incremental scanning. - * subregs_init (initialize_uninitialized_subregs): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * loop-iv.c (iv_current_loop_df): Deleted function. - (check_iv_ref_table_size, clear_iv_info, iv_analysis_loop_init, - latch_dominating_def, iv_get_reaching_def, iv_get_reaching_def, - iv_analyze, iv_analyze_result, biv_p, iv_analysis_done): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * regclass.c (regclass_init): Insert call to recalculate the - effects of changing regs_ever_live. - (init_reg_autoinc): Changed REGNO to SET_REGNO. - * rtl.h (REGNO): Changed so that it cannot appear on lhs. - (SET_REGNO): New macro. - (rhs_regno): New function. - (basic_block): New forward declaration. - * integrate.c (allocate_initial_values): Changed REGNO to - SET_REGNO and removed df parameter and changed calls to df_ - routines to support new incremental scanning. - * combine.c (set_nonzero_bits_and_sign_copies, subst, - reg_nonzero_bits_for_combine, reg_num_sign_bit_copies_for_combine, - get_last_value_validate, get_last_value, reg_dead_at_p, - create_log_links, create_log_links, rest_of_handle_combine, - pass_combine): Removed df parameter and changed calls to df_ - routines to support new incremental scanning. - * stack-ptr-mod.c (notice_stack_pointer_modification): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * resource.c (mark_target_live_regs): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * resource.h (mark_target_live_regs): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * cfgloop.h (iv_current_loop_df): Removed. - * df-problems.c (df_get_live_in, df_get_live_out, - df_ru_get_bb_info, df_ru_set_bb_info, df_ru_free_bb_info, - df_ru_alloc, df_ru_bb_local_compute_process_def, - df_ru_bb_local_compute_process_use, df_ru_bb_local_compute, - df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n, - df_ru_transfer_function, df_ru_free, df_ru_start_dump, - df_ru_top_dump, df_ru_bottom_dump, df_ru_add_problem, - df_rd_get_bb_info, df_rd_set_bb_info, df_rd_free_bb_info, - df_rd_alloc, df_rd_bb_local_compute_process_def, - df_rd_bb_local_compute, df_rd_local_compute, df_rd_init_solution, - df_rd_confluence_n, df_rd_transfer_function, df_rd_free, - df_rd_start_dump, df_rd_top_dump, df_rd_bottom_dump, - df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info, - df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute, - df_lr_local_compute, df_lr_init, df_lr_confluence_0, - df_lr_confluence_n, df_lr_transfer_function, df_lr_local_finalize, - df_lr_free, df_lr_simulate_artificial_refs_at_end, - df_lr_simulate_one_insn, df_lr_top_dump, df_lr_bottom_dump, - df_lr_add_problem, df_ur_get_bb_info, df_ur_set_bb_info, - df_ur_free_bb_info, df_ur_alloc, df_ur_bb_local_compute, - df_ur_local_compute, df_ur_init, df_ur_confluence_n, - df_ur_transfer_function, df_ur_free, df_ur_top_dump, - df_ur_bottom_dump, df_ur_add_problem, df_live_get_bb_info, - df_live_set_bb_info, df_live_free_bb_info, df_live_alloc, - df_live_local_finalize, df_live_free, df_live_top_dump, - df_live_add_problem, df_urec_get_bb_info, df_urec_set_bb_info, - df_urec_free_bb_info, df_urec_alloc, df_urec_bb_local_compute, - df_urec_local_compute, df_urec_init, df_urec_local_finalize, - df_urec_confluence_n, df_urec_transfer_function, df_urec_free, - df_urec_top_dump, df_urec_bottom_dump, df_urec_add_problem, - df_chain_create, df_chain_unlink, df_chain_copy, - df_chain_remove_problem, df_chain_alloc, df_chain_reset, - df_chain_create_bb_process_use, df_chain_create_bb, - df_chain_finalize, df_chain_free, df_chain_start_dump, - df_chain_add_problem, df_ri_alloc, df_kill_notes, - df_set_dead_notes_for_mw, df_set_unused_notes_for_mw, - df_create_unused_note, df_ri_bb_compute, df_ri_compute, - df_ri_free, df_ri_start_dump, df_ri_add_problem, - df_ri_get_setjmp_crosses): Removed df and dflow parameters and - changed calls to df_ routines to support new incremental scanning. - (df_chain_unlink_1, df_chain_fully_remove_problem): New function. - * reg-stack.c (reg_to_stack): Removed df parameter and changed - calls to df_ routines to support new incremental scanning. - * Makefile.in (rtlanal.o, expr.o, expmed.o, cse.o, gcse.o, - regclass.o, caller-save.o, stack-ptr-mod.o, final.o): Added df.h. - (reorg.o): Deleted df.h. - * sched-rgn.c (check_live_1, update_live_1, schedule_insns): - Removed df parameter and changed calls to df_ routines to support - new incremental scanning. - * basic-block.h (forward for basic_block): Moved to rtl.h. - * passes.c (pass_df_initialize, pass_df_finish): New passes. - (execute_todo): Changed TODO_df_finish. - * struct-equiv.c (insns_match_p, struct_equiv_init): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - * config/frv/frv.c (frv_function_prologue, frv_int_to_acc): - Changed REGNO to SET_REGNO. - (frv_reorder_packet): Added null basic block parm to - add_insn_before. - * config/i386/i386.c (ix86_eax_live_at_start_p): Removed df - parameter and changed calls to df_ routines to support new - incremental scanning. - (ix86_expand_prologue, ix86_output_function_epilogue): - Changed REGNO to SET_REGNO. - * config/ia64/ia64.c (emit_predicate_relation_info, ia64_reorg): - Removed df parameter and changed calls to df_ routines to support - new incremental scanning. - * config/mips/mips.c (mips_expand_prologue): Changed REGNO to - SET_REGNO. - * cfgrtl.c (commit_one_edge_insertion, rtl_dump_bb, - print_rtl_with_bb, cfg_layout_merge_blocks, - insert_insn_end_bb_new): Added bb parameter to insn insert calls. - * dce.c (prescan_insns_for_dce): Removed fast parameter. - (init_dce, end_dce, mark_artificial_uses, mark_reg_dependencies, - end_fast_dce, dce_process_block, fast_dce, run_fast_df_dce, - rs_init, rs_confluence, rs_transfer_function, dump_stores, - record_store, mark_dependent_stores, prescan_insns_for_dse, - rest_of_handle_dse): Removed df parameter and changed calls to df_ - routines to support new incremental scanning. - (rest_of_handle_dce, gate_dce, run_dce, pass_rtl_dce): Deleted. - (delete_corresponding_reg_equal_notes): Renamed to - delete_corresponding_reg_eq_notes and made to process both kinds - of notes. - (delete_unmarked_insns): Changed call to - delete_corresponding_reg_eq_notes. - * dce.h (run_fast_df_dce): Removed df parameter. - * reload1.c (compute_use_by_pseudos, reload): Removed df parameter - and changed calls to df_ routines to support new incremental - scanning. - (alter_reg): Changed REGNO to SET_REGNO. - - -2006-12-07 David Edelsohn <edelsohn@gnu.org> - - * config/rs6000/predicates.md (lwa_operand): Allow PRE_MODIFY - indexed address. - * config/rs6000/rs6000-protos.h (legitimate_indexed_address_p): - Declare. - * config/rs6000/rs6000.c (legitimate_indexed_address_p): Remove - static. - -2006-12-07 David Edelsohn <edelsohn@gnu.org> - - * config/rs6000/predicates.md (lwa_operand): Exclude PRE_MODIFY - addresses. - -2006-12-01 Seongbae Park <seongbae.park@gmail.com> - - * dbgcnt.def: New counters - * postreload-gcse.c (delete_redundant_insns_1): New - debug counter point. - * postreload.c (reload_cse_move2add, gate_handle_postreload): - New debug counter point. - * auto-inc-dec.c (move_notes): Removed. - (move_dead_notes): New function. - (attempt_change): Call move_dead_notes(). Add missing dependency check. - * haifa-sched.c (schedule_block): New debug counter point. - * cse.c (delete_trivially_dead_insns): New debug counter point. - * gcse.c (pre_delete): New debug counter point. - * Makefile.in: Adding dependency on DBGCNT_H. - * sched-rgn.c (schedule_region): New debug counter point. - * dce.c (delete_corresponding_reg_equal_notes): New function - (delete_unmarked_insns): Call delete_corresponding_reg_equal_notes. - - -2006-11-28 Seongbae Park <seongbae.park@gmail.com> - - * dbgcnt.def: Updated comments. Added new counters. - * auto-inc-dec.c (try_merge): Debug counter. - * global.c (global_conflicts): Use DF_RA_LIVE_TOP() instead of - df_urec_get_live_at_top(). - * dbgcnt.c (count, limit): Use dbgcnt.def. - (dbg_cnt_is_enabled): New function. - (dbg_cnt): Use dbg_cnt_is_enabled(). - * local-alloc.c (block_alloc): Use DF_RA_LIVE_TOP instead of LIVE_IN. - Add a debug counter. - * df.h (DF_RA_LIVE_TOP): New Macro. Remove df_urec_get_live_at_top. - (struct df_rd_bb_info): Added new fields ADEF, AUSE and TOP. - (struct df_urec_bb_info): Added new field TOP. - * loop-iv.c (iv_analyze_def): Added REG_P check. - * df-problems.c (df_lr_free_bb_info): Free new fields AUSE, ADEF and - TOP. - (df_lr_alloc): Allocate new fields TOP, ADEF, AUSE. - (df_lr_bb_local_compute): Compute ADEF and AUSE. - (df_lr_transfer_function): Compute TOP, and then IN based on TOP, ADEF - and AUSE. - (df_lr_free): Free new fields AUSE, ADEF and TOP. - (df_ur_bb_local_compute): Partial/conditional defs don't hide - earlier defs. - (df_urec_alloc): Allocate new field TOP. - (df_urec_local_finalize): Calculate TOP as well as IN. - (df_urec_free): Free new field TOP. - (df_urec_get_live_at_top): Removed. - * Makefile.in (auto-inc-dec.o, local-alloc.o, sched-rgn.o, - sched-ebb.o, recog.o): Added dependency on DBGCNT_H. - * sched-rgn.c (schedule_insns, gate_handle_sched, gate_handle_sched2): - Added debug counter. - * config/ia64/ia64.c (enum ia64_frame_regs): New enum. - (struct ia64_frame_info): Changed register fields to use an array - index by enum. - (emitted_frame_related_regs): New static variable. - (reg_emitted, get_reg, is_emitted): New function. - (ia64_reload_gp): Use new enum. - (find_gr_spill): Added a new param. Use emitted_frame_related_regs. - (ia64_computea_frame_size, ia64_hard_regno_rename_ok, - ia64_epilogue_uses): - Use emitted_frame_related_regs. - (ia64_expand_prologue): Extra deubg output. Use new enum. - (ia64_expand_epilogue, ia64_direct_return, ia64_split_return_addr_rtx, - ia64_output_function_prologue, ia64_output_function_epilogue, - process_set): - Use new enum. - (ia64_init_expanders): New function. - (ia64_reorg): New debug counter. - * config/ia64/ia64.h (INIT_EXPANDERS): New call to - ia64_init_expanders. - - - -2006-11-18 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (print_current_pass, debug_pass): New functions. - * passes.c (print_current_pass, debug_pass): New functions. - (exec_todo): Changed call to df_verify_blocks. - (current_pass): New variable. - * auto-inc-dec.c (attempt_change): Removed redundant call to - df_insn_rescan and added debugging. - (find_inc): Added debugging and fixed post-inc/dec bug. - (merge_in_block): Fixed post-inc/dec bug. - * dbgcnt.c: Fixed comments. - * dbgcnt.c: Fixed comments. - * loop-init.c (rtl_unroll_and_peel_loops): Added debugging. - * loop-invariant.c (find_defs): Added debugging. - * loop-iv.c (iv_analysis_loop_init): Added debugging. - * df-scan.c (df_ref): Added parameter to control the deletion of - chains. - (df_reg_chain_unlink): Take care not to delete non existent refs. - (df_ref_remove): Changed call to df_reg_chain_unlink. - (df_ref_chain_delete_du_chain, df_ref_chain_delete, - df_mw_hardreg_chain_delete): New function - (df_insn_delete): Now calls df_ref_chain_delete_du_chain, - df_ref_chain_delete, df_mw_hardreg_chain_delete. - (df_bb_delete): Now calls df_ref_chain_delete_du_chain, - df_ref_chain_delete. - (df_insn_rescan): Now supports DF_NO_INSN_RESCAN and added - debugging. - (df_ref_verify): Added code to ignore refs from notes in the table - of refs. - (df_bb_verify, df_exit_block_bitmap_verify, - df_entry_block_bitmap_verify, df_verify_blocks): Made it possible - to abort closer to source of problem. - (df_verify_blocks): Removed dflow parameter. * df-core.c - (df_insn_uid_debug, df_ref_debug): Fixed debugging. * - df-problems.c (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, - df_ur_bb_info, df_live_bb_info, df_urec_bb_info): Made tolerant of - newly added basic blocks. - (df_chain_alloc): Tolerant of missing refs in structure. - (df_chain_insn_reset, df_chain_bb_reset, df_chain_remove_problem): - Deleted function. - (df_chain_alloc): New function. - (df_chain_reset): Now just calls df_chain_remove_problem. - * df.h: (DF_NO_REGS_EVER_LIVE): New flag. - -2006-11-17 Kenneth Zadeck <zadeck@naturalbridge.com> - - * fwprop.c Removed bad version. - * tree-ssa-pre.c (init_pre): Added parameter to post_order_compute. - -2006-11-15 Seongbae Park <seongbae.park@gmail.com> - - * df-scan.c (df_insn_refs_collect): Code cleanup - for COND_EXEC handling. - (df_need_static_chain_reg): New function. - (df_get_entry_block_def_set): Check and add the static chain register. - * ifcvt.c (if_convert): Don't ignore the return value - of find_if_header. - - -2006-11-14 Seongbae Park <seongbae.park@gmail.com> - - * function.c (thread_prologue_and_epilogue_insns): - Update regs_ever_live during df scanning. - -2006-11-14 Seongbae Park <seongbae.park@gmail.com> - - * dbgcnt.c, dbgcnt.h: Added missing copyright notice. Now uses - dbgcnt.def for the list of counters. - * Makefile.in: Add missing dbgcnt.h header file dependencies. - * dbgcnt.def: New file. - -2006-11-14 Seongbae Park <seongbae.park@gmail.com> - - * tree-tailcall.c (execute_tail_recursion): Added dbg_cnt(). - * df-scan.c (df_mw_hardreg_find_hardreg, df_get_conditional_uses, - df_get_call_refs): - New function. - (df_refs_add_to_chains): Don't add duplicate mw_hardreg. - (df_ins_refs_collect): Refactored to use df_get_conditional_uses - and df_get_call_refs. - (df_insn_refs_verify): Find the matching mw_hardreg. - * dbgcnt.c (dbg_cnt_process_opt): Fix a bug handling multiple - counters. Add a new debug counter tail_call. - * dbgcnt.h (enum debug_counter): Added a new counter tail_call. - * calls.c (expand_call): Check dbg_cnt(tail_call). - * df_problems.c (df_create_unused_note, df_ri_bb_compute): - Handle NULL LOC case. - * dce.c (init_dce): Add a debug dump. - - -2006-11-14 Paolo Bonzini <bonzini@gnu.org> - - Merge from mainline: - - 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. - -2006-11-13 Seongbae Park <seongbae.park@gmail.com> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (TODO_df_verify_scan): New flag. - * auto-inc-def.c (find_inc): Added code to check for case where - output of inc is not overwritten by mem to be combined. - * df-scan.c (df_scan_set_bb_info): Now increases the size of the - array if necessary. - (df_scan_blocks): Added flag to avoid recomputing regs_ever_live. - (df_insn_rescan): Fixed missing case for rescanning. - (df_insn_refs_collect): Special case for sibling calls. Changed - to not set up loc field with address of regno_reg_rtx element. - (df_entry_block_defs_collect, df_exit_block_uses_collect, - df_bb_refs_collect): Changed to not set up loc field with address - of regno_reg_rtx element. - (df_bb_refs_record): Removed dflow parameter and added scan_insn - parameter. Changed call to df_bb_refs_record. - (df_compute_regs_ever_live): New function. - (df_reg_chain_unmark): Made to accept NULL blocks parameter. - (df_ref_chain_unmark): New function. - (df_ref_verify): Added abort_if_fail parameter. - (df_insn_refs_verify): Added abort_if_fail and return_refs - parameter and changed function to return bool. Added code to - unmark chains. - (df_bb_refs_verify): Added abort_if_fail parameter and now returns - nothing. - (df_bb_verify): Changed to expect subroutines to abort. - (df_verify_blocks): Now accepts NULL blocks parameter. - * ifcvt.c (if_convert): Added more to dump_files. - * (pass_rtl_ifcvt, pass_if_after_combine, pass_if_after_reload): - added TODO_df_verify_scan. - * opts.c (command_handle_option): New flag OPT_fdbg_cnt_ - * recog.c (confirm_change_group): Fixed updating of df scanning. - * function.c (thread_prologue_and_epilogue_insns): - Pass DF_NO_REGS_EVER_LIVE in df_init, and - call df_compute_regs_ever_live after prologue is generated. - * df.h (enum df_ref_flags): Added DF_REF_ARTIFICIAL. - (enum df_changeable_flags): Added DF_NO_REGS_EVER_LIVE. - (DF_REF_IS_ARTIFICIAL): Added checking for the flag DF_REF_ARTIFICIAL. - * cfgcleanup.c: Fixed typo in comment. - * common.opt: New flag -fdbg-cnt= - * combine.c (try_combine): Added calls to keep df_scanning up to - date. - (pass_combine): Added TODO_df_verify_scan. - * Makefile.in: New gcc object file dbgcnt.o - * passes.c (execute_todo): Added support for TODO_df_verify_scan. - * config/ia64/ia64.c (ia64_split_return_addr_rtx): Finalize - the frame layout early. - (ia64_expand_prologue): Pass DF_NO_REGS_EVER_LIVE to df_init(). - * cfgrtl.c (rtl_delete_block, rtl_merge_blocks, - cfg_layout_merge_blocks): Added debugging. - * dbgcnt.c, dbgcnt.h: New files - * dce.c (delete_unmarked_insns): Use dbg_cnt. - (delete_insn_p): Do not delete unspecs. - -2006-11-10 Seongbae Park <seongbae.park@gmail.com> - - * fwprop.c (forward_propagate_into): Use DF_REF_IS_ARTIFICIAL() - instead of DF_REF_ARTIFICIAL flag. - * df-scan.c (df_ref_record, df_def_record_1): Remove record_live - (df_get_exit_block_use_set, df_get_entry_block_def_set): - Renamed from df_get_{exit_block_uses,entry_block_defs}. - (df_compute_regs_ever_live, df_ref_chain_change_bb, - df_ref_is_record_live, df_reg_chain_unmark, df_ref_chain_free): - New functions. - (df_reg_chains): New structure - (df_ref_add_to_chains): - (df_scan_blocks): Add call to df_compute_regs_ever_live(). - (df_ref_create): Remove record_live, and replace DF_REF_ARTIFICIAL - flag use with DF_REF_IS_ARTIFICIAL () macro. - (df_insn_rescan): Avoid marking blocks dirty if nothing changed. - (df_insn_change_bb): Refactored to use df_ref_change_bb. - (df_ref_is_equal): Now ignores DF_REF_MARKER flag. - (df_ref_chain_find_ref, df_reg_chain_find_reg): Fix the order of - parameters to the evaluation function. - (df_ref_find_chains): Avoid early evaluation of certain fields. - (df_ref_add_to_chains): Remove update to regs_ever_live. - (df_refs_add_to_chains): Use DF_REF_NEXT_REF macro. - (df_ref_record): Remove DF_REF_RECORD_LIVE. - (df_insn_refs_record): Now takes the reference list to be added as - an argument. - (df_bb_refs_record): Handles entry and exit block cases. - (df_bb_refs_collect): Removed DF_REF_ARTIFICIAL. - (df_refs_record): Scan entry and exit blocks first. - (df_ref_verify): Takes reg_chain cache as an argument, - verifies hardreg chain. - (df_exit_block_bitmap_verify): Renamed from df_exit_block_verify - (df_entry-block_bitmap_verify): Renamed from df_entry_block_verify - (df_verify_blocks): Implement regchain cache. Assert immediately - when verification fails in any subfunctions. - * df.h (enum df_ref_flags): Remove DF_REF_ARTIFICIAL and renumber the - enum. - (DF_REF_IS_ARTIFICIAL, DF_REF_MARK, DF_REF_UNMARK, DF_REF_IS_MARKED, - DF_INSN_UID_SAFE_GET): New macros: - - -2006-11-08 Kenneth Zadeck <zadeck@naturalbridge.com> - - * auto-inc-dec.c (attempt_change): Added code to properly maintain - reg_next_inc_use when inc insns are deleted. - (merge_in_block): Added debugging and changed to skip deleted - instructions. - (scan_dflow): Removed variable. - * df-scan.c (df_scan_alloc): Always processes entire function. - (df_scan_free): Removed df->blocks_to_scan. - (df_scan_blocks): Removed blocks_parameter. Now scan entire - function. - (df_insn_rescan, df_insn_change_bb): Renamed df_mark_bb_dirty to - df_set_bb_dirty. - * df.h (blocks_to_scan): Removed variable. - * df-core.c (df_analyze): Add call to df_scan_alloc. Removed - df->blocks_to_scan. - (df_get_bb_dirty): New function. - (df_mark_bb_dirty): Renamed to df_set_bb_dirty. - (df_compact_blocks): Removed df->blocks_to_scan. - (df_bb_replace): Added check to make sure there was no block at - old_index and fixed updating bugs. - * ifcvt.c (cond_exec_process_if_block, - noce_process_if_block, cond_move_process_if_block, - process_if_block, merge_if_block, find_if_header, - find_cond_trap, find_if_case_1, find_if_case_2, if_convert): - Removed modified variable. - (find_if_header, find_cond_trap, find_if_case_1, find_if_case_2, - if_convert): Replaced BB_DIRTY with df_set_bb_dirty and - df_get_bb_dirty. - * recog.c (confirm_change_group): Ditto. - * emit_rtl (remove_insn,, reorder_insns, emit_insn_after_1): Ditto. - * cfgcleanup.c (try_forward_edges, try_crossjump_to_edge, - merge_blocks_move_predecessor_nojumps, try_crossjump_bb): Ditto. - * modulo-sched.c (sms_schedule): Ditto. - * cfgrtl.c (rtl_split_block, rtl_redirect_edge_and_branch, - rtl_redirect_edge_and_branch_force, purge_dead_edges, - cfg_layout_redirect_edge_and_branch): Ditto. - * basic_block.h (BB_DIRTY): Removed. - - -2006-11-07 Kenneth Zadeck <zadeck@naturalbridge.com> - - * cfg.c (compact_blocks): Make df aware when blocks are moved around. - * auto-inc-dec.c (attempt_change): Removed explicit df updating. - * ifcvt.c (cond_exec_process_if_block, - noce_mem_write_may_trap_or_fault_p, noce_process_if_block, - cond_move_process_if_block, process_if_block, find_if_header): - Removed unused df parameter. - (merge_if_block, find_cond_trap, find_if_case_1, find_if_case_2): - Removed explicit df updating. - (if_convert): Rearranged calls to df. - (struct tree_opt_pass pass_rtl_ifcvt, pass_if_after_combine, - pass_if_after_reload): Added TODO_verify_flow. - * recog.c (delete_insn_chain_and_flow): Deleted function. - (peephole2_optimize): Removed unused dataflow problem and variable - and delete explicit df updating calls. - (pass_split_before_sched2): Added TODO_verify_flow. - * emit_rtl (add_insn_after, add_insn_before, remove_insn, - reorder_insns, emit_insn_after_1): Added explicit updating of df. - (set_insn_deleted): New function. - * loop_invariant.c (invariant_table_size, invariant_table): New - variables. - (check_invariant_table_size): New function. - (invariant_for_use, find_defs, check_dependency, - find_invariant_insn, free_inv_motion_data, move_loop_invariants): - Replaced DF_REF_DATA with invariant_table. - * loop-iv.c (clean_slate, iv_ref_table_size, iv_ref_table): New - variables. - (check_iv_ref_table_size): New function. - (clear_iv_info, iv_analysis_loop_init, record_iv, iv_analyze_def, - iv_analysis_done): Replaced DF_REF_DATA with iv_ref_table. - * cfglayout.c (fixup_reorder_chain): Now uses compact_blocks. - * rtl.h (SET_INSN_DELETED): now calls set_insn_deleted. - * Makefile.in: (emit-rtl.o): Now dependent on df.h. - * sched-rgn.c (pass_sched, pass_sched2): Added TODO_verify_flow. - * cfgrtl.c (rtl_delete_block, update_bb_for_insn, - rtl_merge_blocks, try_redirect_by_replacing_jump, - cfg_layout_merge_blocks): Added explicit updating of df. - * dce.c (delete_unmarked_insns): Removed df_delete parameter and - explicit updating of df info. - (rest_of_handle_dce, rest_of_handle_dse): Added call to - df_remove_problem. - (fast_dce, fast_dce, rest_of_handle_fast_dce, run_fast_df_dce): - Removed df_delete parameter. - * df-scan.c (df_scan_free_bb_info): Changed call. - (df_scan_alloc, df_scan_free): Added setting of out_of_date_transfer_functions. - (df_problem problem_SCAN): Added problem removal function. - (df_scan_blocks): Added calls to df_refs_delete and df_bb_delete. - (df_insn_create_insn_record): Added call to df_grow_insn_info. - (df_insn_refs_delete): Renamed to df_insn_delete and removed dflow - parameter. - (df_bb_refs_delete): Renamed to df_bb_delete and removed dflow - parameter. - (df_refs_delete): Deleted. - (df_insn_rescan, df_insn_change_bb): New function. - (df_ref_create_structure): Removed DF_REF_DATA. - * df-core.c (df_add_problem): Changed to use new form of problem - dependency. - (df_remove_problem): New function. - (df_set_blocks): Does a better job of updating the proper blocks. - (df_delete_basic_block): Removed df parameter and checks to see if - block already had infomation. - (df_get_bb_info): Returns NULL if no info was there. - (df_set_bb_info): Checks to make sure problem block information. - (df_mark_solutions_dirty, df_mark_bb_dirty, df_compact_blocks, - df_bb_replace): New functions. - * df.h (df_remove_problem_function): New typedef. - (df_dependent_problem_function): Deleted typedef. - (df_problem): Added remove_problem_fun and dependent_problem and - deleted dependent_problem_fun. - (df_ref.data): Removed. - (df.out_of_date_transfer_functions, df.solutions_dirty): New - variables. - (DF_REF_DATA): Deleted macro. - * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR, - problem_LIVE, problem_UREC, problem_CHAIN, problem_RI): Added - problem removal function and changed dependent_function. - -2006-11-04 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_scan_start_dump): Changed print routine to print - hard register names. - * df-core.c (df_print_regset): New function. - * global.c (global_alloc): Do not recompute register infomation - when recomputing dataflow. - * df.h (DF_RI_NO_UPDATE): New flag. - * df-problems.c (df_lr_top_dump, df_lr_bottom_dump, - df_ur_top_dump, df_ur_bottom_dump, df_live_top_dump, - df_live_bottom_dump, df_urec_top_dump, df_urec_bottom_dump): - Changed to use df_print_regset. - (df_ri_alloc, df_ri_compute): Changed to not update if - DF_RI_NO_UPDATE flag. - * cfgrtl.c (print_rtl_with_bb): Changed to print preds and - successor blocks in dump file. - -2006-11-03 Seongbae Park <seongbae.park@gmail.com> - - * global.c (global_conflicts): Use df_urec_get_live_at_top () - instead of DF_RA_LIVE_IN (). - * function.h: Add a declaration for current_function_assembler_name(). - * function.c (current_function_assembler_name): New function. - (thread_prologue_and_epilogue_insns): Insert rtx_USE when profiling. - * df.h (DF_REF_FLAGS_CLEAR): New macro. - (df_urec_get_live_at_top): New function declaration. - * df-problems.c (df_urec_get_live_at_top): New function. - -2006-10-28 Seongbae Park <seongbae.park@gmail.com> - - * df.h (df_rescan_blocks): Renamed to df_scan_blocks. - * df-core.c (df_analyze): Use df_scan_blocks() instead. - * ifcvt.c (if_convert): Use df_scan_blocks() instead. - * df-scan.c - (df_ref_record, df_def_record_1, df_defs_record, df_uses_record): - They are made side-effect free. - (df_ref_find_chains, df_ref_add_to_chains, df_refs_add_to_chains, - df_ref_is_equal, df_ref_chain_find_ref, df_reg_chain_find_ref, - df_scan_start_block, df_check_and_grow_ref_info, - df_insn_refs_collect, df_bb_refs_collect, - df_get_entry_block_defs, df_get_exit_block_uses, - df_ref_verify, df_refs_verified, df_ref_chain_verify, - df_reg_chain_clear_verified, df_bb_refs_verify, - df_exit_block_verify, df_entry_block_verify, df_verify_blocks): - New functions. - (df_ref_create_structure): Initializes the fields - of df_ref and does not connect it to various chains. - (df_insn_refs_record, df_bb_refs_record, df_record_entry_block_defs, - df_record_exit_block_uses, df_refs_record): - Separate side-effects (adding chains and updating regs_ever_live) - from traversing and finding the refs in the insn/basic block. - (df_ref_create): Separate calls for creating the ref and add it - to the chains. - -2006-10-24 Paolo Bonzini <bonzinI@gnu.rg> - - * ddg.c (add_deps_for_def, add_deps_for_use): Use accessor macros. - * df.h (DF_REF_STRIPPED, DF_SUBREGS): Remove. - * df-core.c: Don't document scanning flags. - * df-scan.c (df_ref_record): Always behave as if DF_SUBREGS was set. - * df-problems.c (df_lr_bb_local_compute): Strip SUBREGs with - DF_REF_REAL_REG. - (df_chain_start_dump): Don't dump DF_REF_STRIPPED. - (df_create_unused_note, df_ri_bb_compute): Don't "inline" - DF_REF_REAL_LOC. - * fwprop.c (fwprop_init): Do not pass DF_SUBREGS. - * loop-invariant.c (record_use): Don't strip SUBREGs. - (record_uses): Do it here with DF_REF_REAL_LOC. - * loop-iv.c (iv_analyze_def): Only allow REGs. Replace previous - way to check for SUBREGs with an assertion. - -2006-10-19 Kenneth Zadeck <zadeck@naturalbridge.com> - - * sched-ebb.c (schedule_ebbs): Changed flags to df_init. - * fwprop.c (use_killed_between): Changed to use proper macros. - (All_uses_available_at, try_fwprop_subst): Added support for - separated reg_equiv/equal df_refs. - (fwprop_init): Changed flags to df_init. - (fwprop, fwprop_addr): Changed call to df_reorganize_refs to - df_maybe_reorganize_use_refs. - * see.c (see_initialize_data_structures): Changed flags to - df_init. - * ddg.c (build_inter_loop_deps): Now skips refs with - reg_equal/equiv notes. - * modulo-sched.c (sms_schedule): Changed flags to df_init. - * web.c (union_defs): Added support for separated reg_equiv/equal - df_refs. - (web_main): Changed flags to df_init and changed call to - df_reorganize_refs to df_maybe_reorganize_(use|def)_refs. - * loop_invariant.c (check_dependency): New function split out from - check_dependencies. - (record_uses): Added support for separated reg_equiv/equal - df_refs. - (move_loop_invariants): Changed flags to df_init. - * loop-iv.c (iv_analysis_loop_init): Changed flags to df_init. - (latch_dominating_def): Changed to use proper macros. - * combine.c (create_log_links): Ditto. - * sched-rgn.c (schedule_insns): Changed flags to df_init. - * dce.c (dce_process_block): Changed to use proper macros. - * df.h (df_insn_info.eq_uses): New field. - (DF_EQUIV_NOTES): Deleted permanent_flag. - (DF_EQ_NOTES): New changeable_flag. - (df_ref_info.regs_size, df_ref_info.regs_inited): Moved to df - structure. - (df.def_regs, df.use_regs, df.eq_use_regs): New fields. - (df_ref_info.begin): Moved from df_reg_info. - (DF_DEFS_COUNT, DF_DEFS_BEGIN, DF_DEFS_COUNT, DF_DEFS_BEGIN, - DF_REG_EQ_USE_GET, DF_REG_EQ_USE_CHAIN, DF_REG_EQ_USE_COUNT): New - macros. - (DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_CHAIN, DF_REG_DEF_COUNT, - DF_REG_USE_GET, DF_REG_USE_CHAIN, DF_REG_USE_COUNT): Redefined. - (df_reorganize_refs): Split into df_maybe_reorganize_use_refs and - df_maybe_reorganize_def_refs. - (df_ref_info.refs_organized): Split into refs_organized_alone and - refs_organized_with_eq_uses. - * df-problems.c (df_ru_bb_local_compute_process_def, - df_ru_local_compute, df_ru_confluence_n, df_ru_transfer_function, - df_ru_start_dump, df_rd_bb_local_compute_process_def, - df_rd_local_compute, df_rd_confluence_n, df_rd_transfer_function, - df_rd_start_dump, df_chain_alloc, df_chain_insn_reset, - df_chain_create_bb_process_use, df_chain_create_bb, - df_chain_start_dump): Changed to use proper macros. - (df_ru_bb_local_compute, df_chain_insn_reset, df_chain_create_bb): - Added support for separated reg_equiv/equal df_refs. - (df_ru_local_compute, df_rd_local_compute, df_chain_alloc): Split - into df_maybe_reorganize_use_refs and - df_maybe_reorganize_def_refs. - * df-scan.c (df_grow_reg_info, df_rescan_blocks, df_ref_create): - Changed to process all data structures dependent on number of - registers at once. - (df_scan_free_internal, df_scan_alloc): Changed to process new - data structures properly. - (df_rescan_blocks): Split into refs_organized_alone and - refs_organized_with_eq_uses. - (df_reg_chain_unlink): Remove decrement of bitmap_size fields. - (df_reg_chain_unlink, df_insn_refs_delete, - df_ref_create_structure): Changed to use proper macros. - (df_reg_chain_unlink, df_ref_remove, df_insn_refs_delete, - df_reorganize_refs, df_ref_create_structure, df_insn_refs_record): - Added support for separated reg_equiv/equal df_refs. - (df_maybe_reorganize_use_refs, df_maybe_reorganize_def_refs): New - functions. - * df-core.c (df_bb_regno_last_use_find, - df_bb_regno_first_def_find, df_bb_regno_last_def_find, - df_insn_regno_def_p, df_find_def, df_find_use, df_dump_start, - df_regno_debug): Changed to use proper macros. - (df_find_use, df_insn_uid_debug, df_insn_uid_debug, - df_insn_debug_regno, df_insn_debug_regno): Added support for - separated reg_equiv/equal df_refs. - - -2006-10-18 Paolo Bonzini <bonzini@gnu.org> - - * stack-ptr-mod.c (pass_stack_ptr_mod): Don't set pass name. - * final.c (pass_no_new_pseudos): Don't set pass name. - - * fwprop.c (all_uses_available_at): Use DF_REF_REG. - (forward_propagate_into): Discard artificial defs/uses. - (pass_rtl_fwprop_addr): Add TODO_df_finish. - -2006-10-03 Richard Sandiford <richard@codesourcery.com> - - * cselib.h (cselib_discard_hook): Declare. - * cselib.c (cselib_discard_hook): New variable. - (remove_useless_values): Call it before freeing useless values. - * dce.c (base_address): New union. - (store_base_info): Change the type of the base field from "rtx" - to "union base_address". - (local_invariant_stores, local_value_stores): New variables. - (store_base_eq): Split into... - (invariant_store_base_eq, value_store_base_eq): ...these new functions. - (store_base_hash): Split into... - (invariant_store_base_hash, value_store_base_hash): ...these - new functions. - (store_base_del): Fix formatting. - (init_store_group): Split into... - (init_invariant_store_group, init_value_store_group): ...these - new functions. - (init_dse): Use init_invariant_store_group instead of init_store_group. - (get_canonical_address): Delete. - (add_store_offset): Change the type of BASE from "rtx" to "union - base_address *". - (record_store): Remove the GROUP parameter. Don't call - get_canonical_address. Store the base in a "union base_address" and - add stores to either local_invariant_stores or local_value_stores. - (record_stores): Remove the GROUP parameter and adjust the calls - to record_store. - (store_base_local): Add a parameter that indicates whether stores - are invariant or cselib_vals. - (invariant_store_base_local): New function. - (value_store_base_local): Likewise. - (value_store_base_useless): Likewise. - (remove_useless_values): Likewise. - (store_base_prune_needed): Adjust for store_base_info changes. - (prescan_insns_for_dse): Remove the local group variable and use - local_invariant_stores and local_value_stores instead. Adjust the - call to record_stores. Use remove_useless_values as the - cselib_discard_hook while processing a basic block. - -2006-10-03 Maxim Kuvyrkov <mkuvyrkov@ispras.ru> - - * sched-ebb.c (ebb_head, ebb_tail, ebb_head_or_leaf_p): Removed. - (begin_schedule_ready, schedule_ebb, ebb_head_or_leaf_p): Remove - unnecessary argument, update all callers. - (ebb_sched_info): Update initializer. - (df): New static variable to keep dataflow info. - (compute_jump_reg_dependencies): Use it instead of glat. - * haifa-sched.c (glat_start, glat_end, glat_size, init_glat, - init_glat1, free_glat): Removed. - (generate_recovery_code, begin_speculative_block, - add_to_speculative_block, init_before_recovery, - create_recovery_block, create_check_block_twin, - schedule_block, sched_init, add_block): Remove - unnecessary argument, update all callers. - * modulo-sched.c (sms_sched_info): Update initializer. - (sms_schedule): Update call to sched_init (). - * sched-int.h (struct sched_info): Remove unnecessary argument and - update all callers of field 'begin_schedule_ready'. Remove field - 'region_head_or_leaf_p'. - (glat_start, glat_end): Remove prototypes. - (enum SCHED_FLAGS): Remove USE_GLAT, DETACH_LIFE_INFO. Use NEW_BBS - instead. - (schedule_block, sched_init, add_block, schedule_region): Update - prototypes. - * sched-rgn.c (df, not_in_df): New static variables. - (check_live_1, update_live_1, add_block1): Use them instead of glat. - (begin_schedule_read, schedule_region): Remove unnecessary argument, - update all callers. - (region_head_or_leaf_p): Remove. - (region_sched_info): Update initializer. - * config/ia64/ia64.c (set_sched_flags): Use NEW_BBS instead of - DETACH_LIFE_INFO. - -2006-10-01 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_ref_record, df_insn_refs_record, - df_bb_refs_record, df_refs_record, df_record_entry_block_defs): - Removed DF_HARD_REGS flag. - * df-core.c (comments): Ditto. - * df.h (permanent_flags.DF_HARD_REFS): Removed. - (changeable_flags.DF_NO_HARD_REGS): Added. - * df-problems.c (df_rd_bb_local_compute_process_def, - df_rd_bb_local_compute, df_chain_create_bb_process_use, - df_chain_create_bb): Added support for DF_NO_HARD_REGS flag. - * dce.c (init_dce): Removed DF_HARD_REFS flag. - * reg_stack.c (reg_to_stack): Ditto. - * sched_rgn.c (sched_insns): Ditto. - * regrename.c (regrename_optimize): Ditto. - * sched_ebb.c (schedule_ebbs): Ditto. - * fwprop.c (fwprop_init): Ditto. - * see.c (see_initialize_data_structures): Ditto. - * auto_inc_dec.c (rest_of_handle_auto_inc_dec): Ditto. - * mode-switching.c (optimize_mode_switching): Ditto. - * modulo-sched.c (sms_schedule): Ditto. - * ifcvt.c (if_convert): Ditto. - * recog.c (peephole2_optimize): Ditto. - * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments): - Ditto. - * local_alloc.c (rest_of_handle_local_alloc): Ditto. - * function.c (thread_prologue_and_epilogue_insns): Ditto. - * rtl_factoring.c (rtl_sequabstr): Ditto. - * bt_load.c (branch_target_load_optimize): Ditto. - * loop_invariant.c (move_loop_invariants): Ditto. - * subregs-init.c (initialize_uninitialized_subregs): Ditto. - * loop-iv.c (iv_analysis_loop_init): Ditto. - * combine.c (rest_of_handle_combine): Ditto. - * web.c (web_main): Added DF_NO_HARD_REGS flag and changed loops - to skip over hard regs. - * reorg.c (dbr_schedule): Removed extra flags from - df_*_add_problems calls. - -2006-09-30 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (problem_SCAN): Removed flags. - (df_scan_add_problem): Ditto. - (df_ref_record, df_insn_refs_record, df_bb_refs_record, - df_refs_record, df_record_entry_block_defs, - df_record_exit_block_uses ): Moved flags to df structure. - * df-core.c (df_init): Added permanent_flags and changeable_flags. - (df_add_problem): Removed flags parameter. - (df_set_flags, df_clear_flags): Changed processing of flags. * - df.h (df_dependent_problem_function, struct df_problem): Removed - flags. - (DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS, DF_DU_CHAIN, - DF_UD_CHAIN, DF_RI_LIFE, DF_RI_SETJMP): Changed to be fields in - df_permanent_flags. - (DF_LR_RUN_DCE): Changed to be fields in df_changeable_flags. - (df_init, df_add_problem, df_set_flags, df_clear_flags, - df_ru_add_problem, df_rd_add_problem, df_lr_add_problem, - df_ur_add_problem, df_live_add_problem, df_urec_add_problem, - df_chain_add_problem, df_ri_add_problem, df_scan_add_problem): - Changed flag parameters. - * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR, - problem_LIVE, problem_UREC, problem_CHAIN, problem_RI): Removed - changeable flags field. - (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem, - df_ur_add_problem, df_live_add_problem, df_urec_add_problem, - df_chain_add_problem, df_ri_add_problem): Removed flags parameter. - (df_lr_local_finalize, df_chain_alloc, df_chain_insn_reset, - df_chain_bb_reset, df_chain_create_bb_process_use, - df_chain_start_dump, df_ri_alloc, df_ri_bb_compute, df_ri_compute, - df_ri_free): Changed location of flags. - * dce.c (init_dce): Moved flags from df_*_add_problem to df_init. - (fast_dce): Changed parameters to df_set_flags and df_clear_flags. - * reg_stack.c (reg_to_stack): Moved flags from df_*_add_problem to df_init. - * sched_rgn.c (sched_insns): Ditto. - * regrename.c (regrename_optimize): Ditto. - * sched_ebb.c (schedule_ebbs): Ditto. - * fwprop.c (fwprop_init): Ditto. - * see.c (see_initialize_data_structures): Ditto. - * auto_inc_dec.c (rest_of_handle_auto_inc_dec): Ditto. - * mode-switching.c (optimize_mode_switching): Ditto. - * modulo-sched.c (sms_schedule): Ditto. - * web.c (web_main): Ditto. - * ifcvt.c (if_convert): Ditto. - * recog.c (peephole2_optimize): Ditto. - * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments): - Ditto. - * local_alloc.c (rest_of_handle_local_alloc): Ditto. - * function.c (thread_prologue_and_epilogue_insns): Ditto. - * rtl_factoring.c (rtl_sequabstr): Ditto. - * bt_load.c (branch_target_load_optimize): Ditto. - * loop_invariant.c (move_loop_invariants): Ditto. - * subregs-init.c (initialize_uninitialized_subregs): Ditto. - * loop-iv.c (iv_analysis_loop_init): Ditto. - * combine.c (rest_of_handle_combine): Ditto. - -2006-08-04 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_rtl_dse): Split into pass_rtl_dse1, - pass_rtl_dse2, pass_rtl_dse3. - * passes.c (init_optimization_passes): Ditto. - * timevar.def (TV_DSE): Split into TV_DSE1, TV_DSE2, and TV_DSE3. - (TV_THREAD_PROLOGUE_AND_EPILOGUE): Made text shorter to improve - readability. - * df.core.c (df_init, df_finish1, df_analyze_problem, df_analyze): - Made postorder and instance variable of df. - (df_finish1): Made tolerant of being passed NULL instance. - (df_get_n_blocks, df_get_postorder): New functions. - * cfganal (post_order_compute): Added delete_unreachable - parameter and code to delete unreachable blocks. - * local_alloc (rest_of_handle_local_alloc): Removed unnecessary - call to delete_unreachable_blocks. - * df.h (postorder, n_blocks): New instance variables. - (df_get_n_blocks, df_get_postorder): New functions. - * sched-rgn.c (extend_rgns): Added extra parameter to - post_order_compute. - * basic-block.h (post_order_compute): Ditto. - * dce.c (fast_dce, init_rs_dflow): Now uses postorder and n_blocks from df. - (pass_rtl_dse): Split into pass_rtl_dse1, - pass_rtl_dse2, pass_rtl_dse3. - * sched-ebb.c (schedule-ebbs): Added return value. - * haifa-sched.c (add_block): Made df parameter unused and fixed - incorrect assert. - -2006-08-01 Kenneth Zadeck <zadeck@naturalbridge.com> - - * sched-ebb.c (sched_ebbs): Now returns the df instance created. - * rtl.h (sched_ebbs): Ditto. - * recog.c (split_all_insns): Made public again so it can be called - from ia64.c - * rtl.h (split_all_insns): Ditto. - * df-problems.c (df_ri_compute): Removed call to non existent - function. - * config/ia64/ia64.c (emit_predicate_relation_info): Added df - parameter and removed rotten ref to global instance. - (ia64_reorg): Added local instance of df and removed calls to non - existent flow.c. - -2006-07-26 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regrename.c (regrename_optimize): Renamed df_clrur to df_live - and removed df_finish call. - (pass_regrename): Added TODO_df_finish flag. - * sched-ebb.c (schedule_ebbs): Renamed df_clrur to df_live - and removed df_finish call. - * fwprop.c (fwprop_done): Removed df_finish call. - (pass_rtl_fwprop): Added TODO_df_finish flag. - * see.c (see_commit_changes): Removed unnecessary set to df. - * postreload.c (rest_of_handle_postreload): Removed df_finish call. - (pass_postreload_cse): Added TODO_df_finish flag. - * tree-pass.h (TODO_df_finish): Added. - * cfg.c (dump_bb_info): Added flow info to dumps - (dump_reg_info): New function. - (dump_flow_info): Moved reg info printing to dump_reg_info. - * auto-inc-dec.c (rest_of_handle_auto_inc_dec): Renamed df_clrur to df_live - and removed df_finish call. - (pass_inc_dec): Added TODO_df_finish flag. - * reorg.c (dbr_schedule): Renamed df_clrur to df_live - and removed df_finish call. - (pass_delay_slots): Added TODO_df_finish flag. - * df-scan.c (df_scan_alloc): Added set to dflow->computed. - (df_scan_dump): Renamed to df_scan_start_dump. - (problem_SCAN): Updated for new dumpers. - * haifa-sched.c (sched_finish): Removed df parameter and deleted - call to df_finish. - * df-core.c (ddf): Renamed to df_current_instance and made public. - (df_init): Ditto and added check to make sure only one instance of - df is alive at any point. - (df_add_problem): Initialized dflow->computed. - (df_analyze_problem): Set dflow->computed. - (df_dump): Now calls new dumpers. - (df_dump_start, df_dump_top, df_dump_bottom): New functions. - (debug_df_insn, debug_df_reg, debug_df_regno, debug_df_defno, - debug_df_useno): Renamed ddf to df_current_instance. - * mode_switching (optimize_mode_switching): Renamed df_clrur to df_live - and removed df_finish call. - (pass_mode_switching): Added TODO_df_finish flag. - * modulo-sched.c (sms_schedule): Removed calls to df_dump and df - parameter from sched_finish. - (pass_sms): Added TODO_df_finish flag. - * web.c (web_main): Removed call to df_dump and df_finish. - (pass_web): Added TODO_df_finish flag. - * loop-init.c (pass_rtl_move_loop_init): Added TODO_df_finish - flag. - * global.c (global_alloc): Removed call to df_dump and debugging - code. - * ifcvt.c (if_convert): Renamed df_clrur to df_live - and removed df_finish call. - (pass_rtl_ifcvt, pass_if_after_combine, pass_if_after_reload): - Added TODO_df_finish flag. - * recog.c (peephole2_optimize): Renamed df_clrur to df_live and - removed df_finish call. - (pass_peephole2): Added TODO_df_finish flag. - * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments): - Renamed df_clrur to df_live and removed df_finish call. - (pass_regmove, pass_stack_adjustments): Added TODO_df_finish flag. - * function.c (epilogue_done): Removed df_finish call. - (pass_thread_prologue): Added TODO_df_finish flag. - * df.h (DF_CLRUR): Renamed to DF_LIVE. - (df_dump_bb_problem_function): New function type. - (df_problem.dump_fun): Deleted. - (df_problem.dump_fun_start, df_problem.dump_fun_top, - df_problem.dump_fun_bottom, problem_data.computed, - df_current_instance): New fields. - (DF_CLRUR_BB_INFO): Renamed to DF_LIVE_BB_INFO. - (df_clrur_bb_info): Renamed to df_live_bb_info. - (df_dump_start, df_dump_top, df_dump_bottom): New functions. - * rtl-factoring (rtl_seqabstr): Renamed df_clrur to df_live - and removed df_finish call. - (pass_rtl_seqabstr): Added TODO_df_finish flag. - * bt-load (branch_target_load_optimize): Renamed df_clrur to df_live - and removed df_finish call. - (pass_branch_target_load_optimize1, - pass_branch_target_load_optimize2): Added TODO_df_finish flag. - * loop-invariant.c (move_loop_invariants): Removed call to - df_finish. - * subregs-init.c (initialize_uninitialized_subregs): Renamed - df_clrur to df_live and changed call to dg_get_live_in to - DF_LIVE_IN. - * rtl.h (dump_reg_info): New function. - * sched-int.h (sched_finish): Removed df parameter. - * combine.c (rest_of_handle_combine): Renamed df_clrur to df_live - and removed df_finish call. - (pass_combine): Added TODO_df_finish flag. - * df-problems.c (df_get_live_in, df_get_live_out): Renamed - DF_CLRUR to DF_LIVE. - (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_clrur_dump, - df_urec_dump, df_ri_dump): Deleted function. - (df_ru_start_dump, df_ru_top_dump, df_ru_bottom_dump, - df_rd_start_dump, df_rd_top_dump, df_rd_bottom_dump, - df_lr_start_dump, df_lr_top_dump, df_lr_bottom_dump, - df_ur_start_dump, df_ur_top_dump, df_ur_bottom_dump, - df_live_top_dump, df_live_bottom_dump, df_ri_start_dump, - df_urec_top_dump, df_urec_bottom_dump): New function. - (problem_RU, problem_RD, problem_LR, problem_UR, problem_UREC, - problem_CHAIN, problem_RI): Replaced dump functions. - (df_clrur_get_bb_info): Renamed to df_live_get_bb_info. - (df_clrur_set_bb_info): Renamed to df_live_set_bb_info. - (df_clrur_free_bb_info): Renamed to df_live_free_bb_info. - (df_clrur_alloc): Renamed to df_live_alloc. - (df_clrur_local_finalize): Renamed to df_live_local_finalize. - (df_clrur_free): Renamed to df_clrur_free. - (problem_CLRUR): Renamed to problem_LIVE and dump functions - changed. - (df_clrur_add_problem): Renamed to df_live_add_problem. - (df_chains_dump): Renamed to df_chain_start_dump. - (df_chain_add_problem, df_ri_alloc, df_ri_compute): Removed - problem_data->computed. - * Makefile.in (passes.o): Added DF_H. - * sched-rgn.c (schedule_insns): Renamed df_clrur to df_live - and removed df_finish call. - (pass_sched, pass_sched2): Added TODO_df_finish flag. - * passes.c (execute_todo): Added call to df_finish for - TODO_df_finish flag. - * cfgrtl.c (dump_regset_in, dump_regset_out): Deleted. - (rtl_dump_bb, print_rtl_with_bb): Fixed to find and print df info. - * dce.c (init_dce): Removed call to df_dump. - (end_dce, end_fast_dce): Removed call df_finish and null out local - df instance variable. - (pass_rtl_dce, pass_fast_rtl_dce, pass_rtl_dse): Added - TODO_df_finish flag. - - -2006-07-23 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_regclass_init, pass_no_new_pseudos, - pass_split_before_sched2): Added. - (pass_life, pass_remove_death_notes): Deleted. - * rtlanal.c: Documentation. - * stack-ptr-mod.c: Ditto. - * output.h: Ditto. - * function.c: Ditto. - * caller-save.c: Ditto. - * sched-deps.c: Ditto. - * jump.c: Ditto. - * alias.c: Ditto. - * calls.c: Ditto. - * cfgloop.c: Ditto. - (establish_preds, flow_loops_find): Removed ref to cfun->max_loop_depth. - * final.c: (rest_of_no_new_pseudos, pass_no_new_pseudos): Added. - * cfg.c (dump_regset, debug_regset): Moved from flow.c. - * regs.h (regs_may_share): Deleted. - (allocate_reg_life_data): Added. - * flow.c: Deleted. - * global.c (reg_may_share): Deleted. - (global_alloc): Removed support for regs_may_share. - * ifcvt.c (rest_or_handel_if_conversion): Removed ref to - clear_reg_deaths. - * timevar.def (TV_FLOW): Removed. - * recog.c (find_single_use, find_single_use_1): Moved to combine - and made static. - (split_all_insns, split_all_insns_noflow): Made static. - (pass_split_before_regclass): Fixed tv_id. - (gate_handle_split_before_sched2, - rest_of_handle_split_before_sched2, pass_split_before_sched2): New. - (pass_split_for_shorten_branches): Renamed and fixed tv_id. - * recog.h (find_single_use): Removed. - * regmove.c (find_use_as_address): Moved from flow and made - static. - * function.h (max_loop_depth): Removed. - * cfgcleanup.c (delete_dead_jumptables): Moved from flow.c. - * subregs-init.c (initialize_uninitialized_subregs): Added call to - allocate_reg_life_data if new regs were added. - * regclass.c (max_regno, reg_set_to_hard_reg_set, - allocate_reg_life_data): Moved from flow.c. - (regclass_init): Now static and returns unsigned int. - (pass_regclass_init, find_subregs_of_mode): New. - (init_subregs_of_mode): Now fills the hash table. - * rtl.h (find_use_as_address, split_all_insns, - split_all_insns_noflow, regclass_init): Deleted. - * combine.c (find_single_use_1, find_single_use): Moved from recog - and made static. - (delete_noop_moves): Moved from flow.c and made static. - (rest_of_handle_combine): Now runs dce as part of df_init. - * df-problems.c (reg_n_info): Moved from flow.c. - (df_ri_problem_data.computed): Added field. - (print_note, df_set_unused_notes_for_mw, df_set_dead_notes_for_mw, - df_create_unused_note, df_ri_bb_compute, df_ri_compute): Changed - note printing to go to dump_file. - (df_ri_alloc, df_ri_compute, df_ri_free, df_ri_dump): Added - support for computed flag. - * Makefile.in: (flow.c flow.o): Removed. - * sched-rgn.c (check_dead_notes1, deaths_in_region): Removed. - (init_regions, add_block1): Removed last of note counting code. - (rest_of_handle_sched2): Moved call to split_all_insns to separate - pass. - * basic_block.h (first_insn_after_basic_block_note, - update_life_extent, PROP_* flags, life_analysis, update_life_info - update_life_info_in_dirty_blocks, count_or_remove_death_notes, - propagate_block, clear_reg_deaths, propagate_block_info, - propagate_one_insn, init_propagate_block_info, - free_propagate_block_info): Removed. - (CLEANUP_*): Renumbered. - sched_vis.c: (print_exp): Added proper printing for PRE and - POST_MODIFY. - * passes.c (init_optimization_passes): Added pass_regclass_init, - pass_no_new_pseudos, and pass_split_before_sched2. Deleted - pass_life. - * struct-equiv.c (struct_equiv_init): Removed dead conditional. - * config/rs6000/rs6000.c (print_operand): More fixes for - PRE_MODIFY. - * config/rs6000/rs6000.md ("*movdf_hardfloat32", - "*movdf_softfloat32"): Ditto. - * cfgrtl (first_insn_after_basic_block_note): Moved from flow.c - and made static. - - -2006-07-16 Zdenek Dvorak <dvorakz@suse.cz> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * regrename.c: Fixed comments. - * see.c (rest_of_handle_see): Removed call to - update_life_info_in_dirty_blocks. - * tree-pass.h: (pass_clear_df, pass_reset_df): Removed. - * passes.c (init_optimization_passes): Ditto. - * cfghooks.c (split_block): Remove call to split_block_end. - (merge_blocks): Removed call to merge_blocks_end. - (duplicate_block): Removed call to duplicate_block_end. - * cfghooks.h (split_block_end, merge_blocks_end, - duplicate_block_end): Removed. - * cfgrtl.c (rtl_split_block_end, rtl_merge_blocks_end): Removed. - (rtl_create_basic_block, force_nonfallthru_and_redirect, - rtl_split_edge, cfg_layout_merge_blocks, cfg_layout_split_edge): - Removed old calls to incremental dataflow. - (dump_regset_in, dump_regset_out): Removed call to dump_regset. - (rtl_dump_bb, print_rtl_with_bb): Rearranged dataflow printing. - * cfg.c (compact_blocks): Removed code to keep dataflow up to - date. - * flow.c (clear_log_links): Deleted - (life_analysis, init_propagate_block_info): Removed PROP_LOG_LINKS. - (update_life_info): Removed call to clear_log_links. - (mark_set_1): Removed code to build log links. - (clear_log_links): Deleted. - * df-scan.c (df_uses_record): Added code to set - DF_REF_PRE_POST_MODIFY. - (df_insn_refs_record): Added code to set DF_REF_CALL_STACK_FRAME. - * df-core.c (df_analyze_simple_change_some_blocks, - df_analyze_simple_change_one_block, df_compact_blocks, - df_bb_replace, reset_df, pass_reset_df, clear_df, pass_clear_df): - Deleted. - * recog.c (peephole2_optimize): Deleted some rotted code. - * df.h (DF_REF_PRE_POST_MODIFY, DF_REF_CALL_STACK_USAGE): New - Flags. - (df_analyze_simple_change_some_blocks, - df_analyze_simple_change_one_block, df_compact_blocks, - df_bb_replace): Deleted. - * bt-load (branch_target_load_optimize): Removed call to - update_life_info. - * cfgcleanup.c (thread_jump, try_forward_edges): Deleted mode - parameter to thread_jump. - (try_optimize_cfg, cleanup_cfg): Removed CLEANUP_UPDATE_LIFE. - * cfglayout.c (cfg_layout_duplicate_bb_end): Deleted. - * combine.c (combine_instructions): Removed call to - update_life_info. - (set_nonzero_bits_and_sign_copies, reg_nonzero_bits_for_combine, - reg_num_sign_bit_copies_for_combine, get_last_value_validate, - get_last_value, reg_dead_at_p): Changed to use local df instance. - (create_log_links, clear_log_links): New function. - (rest_of_handle_combine): Added new version of df, create and - destroy log links locally. - * bb-reorder.c (rest_of_handle_partition_blocks): Removed call to - update_life_info. - * basic-block.h (PROP_LOG_LINKS): Removed and renumbered other - PROP_*. - (CLEANUP_UPDATE_LIFE, CLEANUP_LOG_LINKS): Removed and renumbered - other CLEANUP_*. - * tree-cfg.c (tree_cfg_hooks): Removed fields. - * struct-equiv.c (struct_equiv_init): Removed call to - update_life_in_dirty_blocks. - * dce.c (init_dce, end_dce, end_fast_dce): Removed code to service - rtl_df. - -2006-07-12 Kenneth Zadeck <zadeck@naturalbridge.com> - - * auto-inc-dec.c (parse_add_or_inc): Moved test to merge_in_block. - (find_inc): Now returns success flag if transformation was made. - (find_mem): Ditto. - (merge_in_block): Restructed to loop if any merges were made. - Added max_reg parameter. Added test from parse_add_or_inc. - -2006-07-11 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regrename.c (regrename_optimize): Changed df problem - initialization. - * sched-ebb.c (schedule_ebbs): Ditto. - * reorg.c (dbr_schedule): Ditto. - * mode-switching.c (optimize_mode_switching): Ditto. - * ifcvt.c (if_convert): Ditto. - * reorg.c (peephole2_optimize): Ditto. - * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments): - Ditto. - * sched-rgn.c (schedule_insns): Ditto. - * rtl-factoring.c (rtl_seqabstr): Ditto. - * bt-load.c (branch_target_load_optimize): Ditto. - * subregs-init.c (initialize_uninitialized_subregs): Ditto. - * df-core.c (reset_df): Ditto. - * flow.c (update_life_info, propagate_one_insn): Renamed UPWARD_LIVE - to LR. - (rest_of_handle_life): Changed df problem - initialization. - * function.c (keep_stack_depressed): Renamed UPWARD_LIVE to LR. - * combine.c (set_nonzero_bits_and_sign_copies): Changed DF_LIVE_IN - to DF_UR_IN or DF_LR_IN. - (reg_nonzero_bits_for_combine, - reg_num_sign_bit_copies_for_combine, get_last_value): Changed - DF_LIVE_IN to DF_UR_IN. - * reg-stack.c (reg_to_stack): Changed df problem - initialization. Changed DF_LIVE_IN to DF_LR_IN. str - * struct-equiv.c (struct_equiv_init): Renamed UPWARD_LIVE - to LR. - * dce.c (dce_process_block): Changed DF_UPWARD_LIVE_* to DF_LR_*. - * df.h: (DF_CLRUR) Added symbol and renamed others in block. - (DF_CLRUR_BB_INFO): New macro. - (DF_LIVE_IN, DF_LIVE_OUT): Changed to use output of clrur problem. - (DF_UPWARD_LIVE_IN): Renamed to DF_LR_IN. - (DF_UPWARD_LIVE_OUT): Renamed to DF_LR_OUT. - (df_clrur_bb_info): New structure. - (df_clrur_add_problem, df_clrur_get_bb_info): New functions. - * df-problems: (df_get_live_in, df_get_live_out, - df_lr_simulate_artificial_refs_at_end): Reworked to - to be consistent with new dataflow problems and naming. - (df_ur_local_finalize): Deleted function. - (df_problem problem_UR): Removed ref to df_ur_local_finalize. - (df_clrur_get_bb_info, df_clrur_set_bb_info, - df_clrur_free_bb_info, df_clrur_alloc, df_clrur_free, - df_clrur_dump, df_clrur_add_problem): New functions. - (df_problem problem_CLRUR): New datastructure. - * auto-inc-dec.c (reg_next_inc_use): New Array. - (attempt_change): Added inc_reg parm and boolean result. Move - some tests to try_merge. Added processing for reg_next_inc_use. - (try_merge): Added boolean result and some test moved from - attempt_change and parse_add_or_inc. - (parse_add_or_inc): Move test to try_merge. Improved debugging, - and added code to support reg_next_inc_use. Added more - correctness tests. - (rest_of_handle_auto_inc_dec): Changed df problem initialization - and added code to support reg_next_inc_use. - -2006-07-05 Richard Sandiford <richard@codesourcery.com> - - * passes.c (init_optimization_passes): Move the final RTL DSE pass - after thread_prologue_and_epilogue. - -2006-07-01 Daniel Berlin <dberlin@dberlin.org> - David Edelsohn <edelsohn@gnu.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - tree-pass.h (pass_inc_dec): New pass variable. - auto-inc-dec.c: New file that contains pass to find auto-inc/dec - instruction combinations. - flow.c: Removed unused includes for execinfo.h and stdio.h. - (init_propagate_block_info): Fixed missing comma typo. - (attempt_auto_inc, try_pre_increment): Added code to abort if any - auto-inc/dec insns are found by this pass. - df-scan.c (df_defs_record): Added flags parameter. - (df_insn_refs_record): Added code to check for conditional def. - (df_recompute_luids): New function. - df-core.c: Fixed comment. - global.c (global_alloc): Moved misplaced debugging code. - (global_conflicts): Added patch to fix the way auto-incs are - accounted for in conflicts graph. - timevar.def (TV_AUTO_INC_DEC): New variable. - recog.c: Fixed comment. - function.c: Fixed comment. - df.h (DF_REF_CONDITIONAL): New flag. - (df_recompute_luids): New function. - gcse.c (extract_mentioned_regs_helper): Added PRE/POST_MODIFY - cases. - common.opt (fauto-inc-dec): New flag. - rtl.h (AUTO_INC_DEC): Made this symbol dependent on - HAVE_(PRE/POST)_MODIFY_(REG/DISP). Made other symbols dependent - on AUTO_INC_DEC rather than components that defined AUTO_INC_DEC. - df-problems.c (df_ru_bb_local_compute_process_def, - df_lr_bb_local_compute, df_lr_simulate_artificial_refs_at_end, - df_lr_simulate_one_insn, df_chain_create_bb, - df_create_unused_note): Added DF_REF_CONDITIONAL to keep - conditional defs from being added to kill sets. - dce.c (dce_process_block): Ditto. - Makefile.in (auto-inc-dec.c): New file. - basic-block.h: Preparation to get rid of PROP_AUTO_INC flag. - passes.c (init_optimization_passes): Added pass_inc_dec. - config/rs6000/rs6000.c (rs6000_legitimate_address): Added code for - PRE_MODIFY. - (rs6000_mode_dependent_address, print_operand): Added case for pre_modify. - config/rs6000/rs6000.h (HAVE_PRE_MODIFY_DISP, - HAVE_PRE_MODIFY_REG): Added flags. - reload1 (eliminate_regs_1, elimination_effects): Added cases for - PRE/POST_MODIFY. - - - -2006-05-27 Steven Bosscher <steven@gcc.gnu.org> - - * reorg.c (dbr_schedule): Fix df_ur_add_problem calls. - -2006-05-24 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_scan_free_internal, df_grow_reg_info, - df_reg_chain_unlink, df_ref_remove, - df_insn_create_insn_record, df_insn_refs_delete, - df_ref_create_structure, df_ref_record, df_mark_reg, - df_record_entry_block_defs, df_record_exit_block_uses): - Formatting fixes. - (df_get_artificial_defs): Spelling fixes. - (df_ref_record, df_def_record_1, df_uses_record): - Fix the way that subregs are processed. - (df_defs_record, df_def_record_1, df_insn_refs_record): - Split DF_REF_CLOBBER into two cases. - * df-core.c (df_analyze): Added comments - (df_simple_iterative_dataflow): New function. - (df_dump): Formatting fixes. - * df.h (DF_REF_CLOBBER): Deleted. - (DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New enums. - (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info, - df_urec_bb_info): Added comments. - (df_simple_iterative_dataflow): New function. - * df-problems.c (df_print_bb_index, df_set_dead_notes_for_mw): - Added comments. - (df_ru_alloc, df_ru_local_compute, df_ru_confluence_n, - df_ru_free, df_ru_dump, df_rd_alloc, - df_rd_bb_local_compute_process_def, df_rd_bb_local_compute, - df_rd_local_compute, df_rd_confluence_n, df_rd_free, - df_rd_dump, df_lr_bb_local_compute, df_lr_bb_local_compute, - df_lr_local_compute, df_ur_alloc, df_ur_dump, df_urec_alloc, - df_urec_bb_local_compute, df_urec_local_compute, - df_urec_local_finalize, df_urec_dump, df_chain_create_bb, - df_create_unused_note, df_ri_bb_compute): Formatting fixes. - (df_ru_bb_local_compute_process_def): Do not clear gen set. - (df_ru_bb_local_compute): Reorder processing insn. - (df_ru_transfer_function): Fixed incorrect use of bitmaps. - (df_ru_dump, df_rd_dump, df_chains_dump): Added debugging code. - (df_lr_bb_local_compute, df_lr_simulate_one_insn, - df_ur_bb_local_compute, df_chain_create_bb, - df_create_unused_note, df_ri_bb_compute): Split - DF_REF_CLOBBER into two cases. - * ddg.c (add_deps_for_def): Changed to use ru info. - * modulo-sched.c (sms_schedule): Added debugging. - * dce.c (rs_dflow, df_problem reaching_stores_problem): Deleted. - (init_rs_dflow, calculate_reaching_stores): Move dataflow to new - df function. - -2006-05-23 Kenneth Zadeck <zadeck@naturalbridge.com> - - * fwprop.c (local_ref_killed_between_p): Rearranged definition. - -2006-05-23 Steven Bosscher <stevenb.gcc@gmail.com> - - * rtlanal.c (find_occurrence): Move to fwprop.c. - * rtl.h (find_occurrence): Remove prototype. - * fwprop.c (can_simplify_addr): Fix check for frame based addresses. - (should_replace_address): Update comment before this function. - (local_ref_killed_between_p): Don't choque on NOTEs. - (use_killed_between): Handle the exceptional case that a DEF does - not dominate one of its uses. - (varying_mem_p): Simplify return type. - (all_uses_available_at): Clean up unnecessary single_set calls. - (find_occurrence_callback, find_occurrence): New. - (subst): Rename to try_fwprop_subst. - (forward_propagate_subreg): Update caller. - (forward_propagate_and_simplify): Likewise. - (fwprop_init): Find loops before computing data flow info. - (fwprop_done): Call cleanup_cfg without CLEANUP_PRE_LOOP. Free - loop tree before cleanup_cfg. - -2006-05-14 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regclass.c (init_subregs_of_mode): Created dummy version - when CANNOT_CHANGE_MODE_CLASS is undefined. - -2006-05-13 Steven Bosscher <stevenb.gcc@gmail.com> - - * df-core.c (df_bb_regno_last_use_find): Do not look for dataflow - information attached to non-INSNs such as NOTEs. - (df_bb_regno_first_def_find, df_bb_regno_last_def_find): Likewise. - -2006-05-05 Kenneth Zadeck <zadeck@naturalbridge.com> - - * haifa-sched.c (glat_size): New variable. - (sched-init, extend_bb): Properly initialized glat_start and - glat_end. - (free_glat): Fixed double free of bitmaps. - * df-scan.c (df_scan_get_bb_info, df_scan_set_bb_info): Added - assertions. - * df-problems.c (df_ru_get_bb_info, df_ru_set_bb_info, - df_rd_get_bb_info, df_rd_set_bb_info, df_lr_get_bb_info, - df_lr_set_bb_info, df_ur_get_bb_info, df_ur_set_bb_info, - df_urec_get_bb_info, df_urec_set_bb_info): Ditto. - -2006-04-25 Kenneth Zadeck <zadeck@naturalbridge.com> - - * flow.c (rest_of_handle_life): Removed unnecessary code. - * df-scan.c (df_scan_free_internal, df_scan_free): Fixed - storage leak. - * df-core.c (df_delete_basic_block): Removed dangling pointer. - * mode-switching.c (optimize_move_switching): Moved creation of df - instance to avoid storage leak. - * ifcvt.c (if_convert): Fixed storage leak. - * dce.c (mark_insn, - rest_of_handle_dce): Removed old way of processing libcalls. - (libcall_matches_p, mark_libcall_insns): Removed. - (mark_libcall): New function. - (mark_reg_dependencies, dce_process_block): New code to check for - libcalls. - (fast_dce): Fixed storage leak. - -2006-04-24 Kenneth Zadeck <zadeck@naturalbridge.com> - - * sched-ebb.c (schedule_ebbs): Updated register lifetime info. - * modulo-sched.c (sms_schedule): Ditto. - * sched-reg.c (schedule_insns): Ditto. - * regmove.c (regmove-optimize): Ditto. - * tree.h (setjmp_vars_warning, setjmp_args_warning): Removed. - (generate_setjmp_warning): Added. - * tree-pass.h (pass_subregs_of_mode_init): Added. - * flow.c (life_analysis): Moved parts to other passes. - (regno_clobbered_at_setjmp):Moved setjmp warning to local-alloc. - (rest_of_handle_life): Ditto. - * df-scan.c (df_ref_record): Reformatted comment. - * ifcvt.c (rest_of_handle_if_conversion): Removed last bit of - rtl_df scafolding. - * local-alloc.c (local_alloc, no_equiv, block_alloc): Changed to - use same instance of df as global_alloc, - (rest_of_handle_local_alloc): Now also produces setjmp warnings. - * function.c (regno_clobbered_at_setjmp): Moved from flow. - (setjmp_vars_warning, setjmp_args_warning): Added parms to use - passed in df instance. - (generate_setjmp_warnings): New function. - * df.h (DF_RI_SETJMP): New constant. - (df_ri_get_setjmp_crosses): New function. - * df-problems.c (df_ri_problem_data, setjmp_crosses): New - variables. - (df_ri_alloc, df_ri_bb_compute, df_ri_bb_compute, df_ri_compute): - Changed variables live across setjmp computation. - (df_ri_get_setjmp_crosses): New function. - * regclass.c (init_subregs_of_mode): Changed return. - (gate_subregs_of_mode_init, pass_subregs_of_mode_init): New. - * rtl.h (init_subregs_of_mode): Removed. - * integrate.c (allocate_initial_values): Removed incorrect parm - attribute and changed instance of df used. - * output.h (regno_clobbered_at_setjmp): Removed. - * stack-ptr-mod.c: Fixed comment. - * Makefile.in (regclass.o): Added tree-pass.h. - * basic-block.h (safe_insert_insn_on_edge): Deleted. - * passes.c (init_optimization_passes): Added - pass_subregs_of_mode_init. - * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Deleted. - * rtl-profile.c: Removed. - -2006-04-21 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_stack_ptr_mod, pass_initialize_subregs, - pass_reset_df): New. - * flow.c (notice_stack_pointer_modification_1, - notice_stack_pointer_modification, find_regno_partial_param, - find_regno_partial, initialize_uninitialized_subregs): Moved to - separate passes in separate files. - (life_analysis): Removed call to notice_stack_pointer_modification. - (rest_of_handle_life): Removed call to initialize_uninitialized_subargs. - * df-core.c (reset_df, pass_reset_df): New. - * Makefile.in (stack-ptr-mod.o, subregs-init.o): New. - * passes.c (pass_stack_ptr_mod, pass_initialize_subregs, - pass_reset_df): New passes. - * subregs-init.c: New file that contains separate pass for - initialize_uninitialized_subargs. - * stack-pointer-mod.c: New file that contains separate pass for - notice_stack_pointer_modification. - -2006-04-19 Kenneth Zadeck <zadeck@naturalbridge.com> - - * ifcvt.c (rest_of_handle_if_after_combine): Removed flow - scaffolding. - * passes.c (init_optimization_passes): Moved clear_df to after - combine and changed two expensive dce passes into a dse and fast - dce pass. - -2006-04-18 Kenneth Zadeck <zadeck@naturalbridge.com> - - * mode-switching.c (optimize_mode_switching): Created local - instance of df and removed references to flow. - * regmove.c (mark_flags_life_zones, regmove_optimize): Ditto. - * global.c (global_alloc, rest_of_handle_global_alloc): Reused - instance of df created in local alloc. - * local-alloc.c (rest_of_handle_local_alloc): Create instance of - ra_df used by all register allocation. - * bb-reorder.c (fix_crossing_conditional_branches): Removed code - to keep dataflow up to date. - * Makefile.in (bb-reorder.o): Removed ref to DF_H. - * passes.c (init_optimization_passes): Meved clear_df to before - partition_blocks. - -2006-04-17 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_recompute_reg_usage): Deleted. flow.c - (pass_recompute_reg_usage, recompute_reg_usage): Deleted. * - sched-ebb.c (begin_schedule_ready, schedule_ebb, - begin_schedule_ready, schedule_ebb, schedule_block): Threaded - local instance of df. - (schedule_ebbs): Created local instance of df. - * haifa-sched.c (schedule_block, sched_init, sched_finish, - generate_recovery_code, begin_speculative_block, - add_to_speculative_block, init_before_recovery, - create_recovery_block, create_check_block_twin, init_glat, - init_glat1): Threaded local instance of df. - * modulo-sched.c (sms_schedule): Ditto. - (rest_of_handle_sms): Removed unnecessary update of flow info. - * sched-int.h (df.h): Now includes this. - (schedule_block, sched_init, sched_finish, add_block): Added df - parm. - * sched-rgn.c (begin_schedule_ready, schedule_region, - schedule_insns): Threaded local instance of df. - (schedule_insns): Removed unnecessary update of flow info. - * Makefile.in (SCHED_INT_H): Added DF_H. - (ddg.o, modulo-sched.o, haifa-sched.o, sched-deps.o, sched-rgn.o, - sched-ebb.o): Removed DF_H. - * ddg.c (build_inter_loop_deps): Swapped parms. - (create_ddg): Swapped parms for call. - * passes.c (init_optimization_passes): Removed dce and - recompute_reg_use pass and moved clear_df to before first - schedulers. - -2006-04-16 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df.h (shared_df): Removed. - (ra_df): New. - * core.c (shared_df): Removed. - (ra_df): New. - * postreload.c (reload_combine): Changed to use ra_df. - * reload.c (push_reload, find_dummy_reload): Ditto. - * global.c (global_alloc, global_conflicts, mark_elimination, - build_insn_chain, rest_of_handle_global_alloc): Ditto. - * reload1.c (compute_use_by_pseudos, reload): Ditto. - * local-alloc.c (local_alloc, block_alloc): Created local instance - of df. - * passes.c (init_optimization_passes): Moved clear_df to before - register allocators. - * tree-pass.h (pass_partition_blocks): Removed redundant - copy. - -2006-04-16 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_reset_df_after_reload): Removed. - * df-core.c (reset_df_after_reload, pass_reset_df_after_reload): - Removed. - * function.c (prologue_epilogue_df): New global. - (rtx keep_stack_depressed, thread_prologue_and_epilogue_insns): - Unthreaded local version of df and replaced with - prologue_epilogue_df. - * rtl.h (prologue_epilogue_df): New. - * passes.c (init_optimization_passes): Removed all uses of flow - after register allocation. - * config/i386/i386.c (ix86_eax_live_at_start_p): Replaced use of - flow with prologue_epilogue_df. - -2006-04-15 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_flow2): Renamed to - pass_thread_prologue_and_epilogue. - * passes.c (pass_flow2): Ditto. - * final.c (rest_of_clean_state): Removed flow2_completed. - * config/i386/i386.md: Ditto. - * config/sh/sh.md: Ditto. - * config/mips/mips.md: Ditto. - * config/h8300/h8300.md: Ditto. - * flow.c: Ditto. - (rest_of_handle_flow2): Moved to function.c as - rest_of_handle_thread_prologue_and_epilogue. - * timevar.def (TV_FLOW2): Renamed to - TV_THREAD_PROLOGUE_AND_EPILOGUE. - * function.c (keep_stack_depressed): Added df parameter. - (thread_prologue_and_epilogue_insns): Made local function and - removed unused parameter. Added local instance of df. - (rest_of_handle_thread_prologue_and_epilogue): New function - renamed from flow.c. - (pass_thread_prologue_and_epilogue): New pass. - * rtl.h (flow2_completed, thread_prologue_and_epilogue_insns): - Removed. - * df-problems.c (df_ru_get_bb_info, df_rd_get_bb_info, - df_lr_get_bb_info, df_ur_get_bb_info, df_urec_get_bb_info): Added - check. - * Makefile.in (function.o): Added timevar.h. - -2006-04-13 Kenneth Zadeck <zadeck@naturalbridge.com> - - * rtl-factoring (collect_pattern_seqs, clear_regs_live_in_seq, - recompute_gain_for_pattern_seq, clear_regs_live_in_seq, - recompute_gain, split_blocks_after_seqs, split_pattern_seq, - erase_matching_seqs, abstract_best_seq, rtl_seqabstr): Threaded - local instance of df to replace all references to flow. - (gate_rtl_seqabstr): Removed unnecessary calls. - * passes.c (init_optimization_passes): Moved clear_df before - rtl_seqabstr. Removed some expensive calls to dce. - * tree-pass.h (pass_fast_rtl_dce): New. - * regrename.c (gate_handle_regrename): Update call to pass. - * sched-rgn.c (rest_of_handle_sched2): Remove outdated calls. - -2006-04-13 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regmove.c (rest_of_handle_stack_adjustments): Removed all - references to flow.c and replaced with df. - * passes.c (init_optimization_passes): Moved clear_df before - pass_stack_adjustments. - -2006-04-12 Kenneth Zadeck <zadeck@naturalbridge.com> - - * recog.c (delete_insn_chain_and_dflow): New function. - (peephole2_optimize): Replaced all flow references with df. Added - local instance of df. - * passes.c (init_optimization_passes): Moved clear_df before peephole2. - -2006-04-11 Kenneth Zadeck <zadeck@naturalbridge.com> - - * ifcvt.c (cond_exec_process_if_block, merge_if_block, - noce_process_if_block, cond_move_process_if_block, - process_if_block, find_if_header, find_cond_trap, find_if_case_1, - find_if_case_2, dead_or_predicable): Threaded local copy of df - thru the call stack. - (merge_if_block, find_cond_trap, find_if_case_1, find_if_case_2, - dead_or_predicable): Added code to update df in place. - (if_convert): Removed parameter concerned with correct dataflow - info, it now always is. Created instance of df. Removed code to - update old flow info. - (rest_of_handle_if_after_reload): Removed unnecessary calls to - cleanup_cfg. - * passes.c (init_optimization_passes): Moved clear_df to before - last ifconvert. Renamed pass_cprop to pass_cprop_hardreg. - * regrename.c (rest_of_handle_cprop): Renamed pass_cprop to - pass_cprop_hardreg. - * tree-pass.h: Renamed cprop to cprop_hardreg. - -2006-04-11 Kenneth Zadeck <zadeck@naturalbridge.com> - - * sched-ebb.c (schedule_ebbs): Removed code to update dataflow - after scheduling and removed unused parm from - reposition_prologue_and_epilogue_notes. - * sched-rgn.c (schedule_insns): Ditto. - (rest_of_handle_sched): Added temp hack to rebuild flow based dataflow - until flow is permanently removed. - * haifa-sched.c (init_glat): Modified to create glat from df info. - (attach_life_info, attach_life_info1, check_reg_live): Removed. - (free_glat): Now cleans up df. - * modulo-sched.c (compute_jump_reg_dependencies): Removed df parm. - * ifcvt.c (rest_of_handle_if_conversion): Added code to clean up - flow based reg_deaths after first call to ifconvert. - * function.c (reposition_prologue_and_epilogue_notes): Removed - unused parm. - * rtl.h (reposition_prologue_and_epilogue_notes): Ditto. - * sched-int.h (check_reg_live): Removed. - -2006-04-10 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-core.c (reset_df_after_reload, clear_df): Added return to - make compatible with pass manager. - * dce.c (rest_of_handle_dce, rest_of_handle_fast_dce, - rest_of_handle_dse): Ditto. - -2006-04-09 Kenneth Zadeck <zadeck@naturalbridge.com> - - * regrename.c (merge_overlapping_regs, regrename_optimize): - Threaded private instance of df. - (regrename_optimize): Created private instance of df, removed - all references or flow. - (copyprop_hardreg_forward): Removed all references to flow. - (gate_handle_regrename): Split reg rename and cprop into separate - passes. - (gate_handle_cprop): New function. - (pass_cprop): New pass structure. - * tree-pass.h (pass_cprop): New pass structure. - * passes.c (init_optimization_passes): Added cprop pass and - moved clear_df pass closer to beginning. - -2006-04-08 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h (pass_split_after_reload, pass_branch_target_load_optimize1 - pass_branch_target_load_optimize2): Added. - (pass_branch_target_load_optimize): Deleted. - * flow.c (rest_of_handle_flow2): Split the calls to split_all_insns and - branch_target_load_optimize into their own passes. - * passes.c (init_optimization_passes): Ditto. - (init_optimization_passes): Moved clear_df pass to before - second branch_target_load_optimize pass. - * bt-load (compute_defs_uses_and_gen, build_btr_def_use_webs, - migrate_btr_defs): Threaded private copy of df into these functions. - (branch_target_load_optimize): Made private and add local - instance of df. Removed all references to flow. - (rest_of_handle_branch_target_load_optimize1): New function. - (rest_of_handle_branch_target_load_optimize): Renamed to - rest_of_handle_branch_target_load_optimize2. - rtl.h (branch_target_load_optimize): Removed. - -2006-04-08 Kenneth Zadeck <zadeck@naturalbridge.com> - - * sched-ebb.c (init_ready_list, can_schedule_ready_p, new_ready, - compute_jump_reg_dependencies, schedule_ebb, sched_analyze, - schedule_block): Changed to pass instance of df. - (compute_jump_reg_dependencies): Changed to use local instance - of dataflow. - * ddg.c (build_intra_loop_deps, sched_analyze, - build_intra_loop_deps): Changed to pass instance of df. - * ddg.h: added forward reference to struct df. - * haifa-sched.c (schedule_insns, schedule_insn, - schedule_block): Changed to pass instance of df. - * modulo-sched (compute_jump_reg_dependencies): Ditto. - (sms_schedule): Added call to do dce when stated. - * sched-deps.c (sched_analyze_insn, sched_analyze): - Changed to pass instance of df. - * rtl.h (schedule_insns, schedule_ebbs): Ditto. - * sched-int.h (init_ready_list, can_schedule_ready_p, new_ready, - compute_jump_reg_dependencies, sched_analyze, schedule_block): - Ditto. - * sched-rgn.c (check_live_1, update_live_1, check_live, - update_live, init_ready_list, can_schedule_ready_p, new_ready, - compute_jump_reg_dependencies, compute_block_backward_dependences, - schedule_region, schedule_insns): Ditto. - (schedule_insns): Removed call to update_life_info when finished. - (rest_of_handle_sched, rest_of_handle_sched2): Creates local - instance of df. - * passes.c (init_optimization_passes): moved clear_df pass - earlier. - * Makefile.in (df-core.o): Added except.h and dce.h - (modulo-sched.o): Added DF_H. - * recog.c (split_all_insns): Removed old code that was used to - update dataflow. - * reg-stack.c (rest_of_handle_stack_regs): Removed ifdefed out code. - -2006-04-07 Kenneth Zadeck <zadeck@naturalbridge.com> - - * recog.c (split_all_insns): Removed parameter and code to - update dataflow. - * sched-rgn.c (rest_of_handle_sched2): Removed parm to - split_all_insns. - * flow.c (rest_of_handle_flow2): Ditto. - (rest_of_handle_split_all_insns): Added call to update old - dataflow after this pass. - (rest_of_handle_split_after_reload, - rest_of_handle_split_before_regstack): New function. - (pass_split_after_reload): New structure. - * rtl.h (split_all_insns): Removed param. - * bb-reorder.c (rest_of_handle_reorder_blocks): Removed - references to flow. - * reg-stack.c (subst_stack_regs_pat): Removed unnecessary - assertion. - -2006-04-07 Daniel Berlin <dberlin@dberlin.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * regoc.c (dbr_schedule): Added parm to call to df_lr_add_problem. - * ifcvt.c (if_convert): Ditto. - * modulo-sched.c (sms_schedule): Ditto. - * reg-stack.c (reg_to_stack): Ditto. - * global.c (global_alloc, rest_of_handle_global_alloc): Ditto. - (rest_of_handle_global_alloc): Removed call to df_set_state. - * basic_block.h (clear_reg_deaths): New function. - * flow.c: (clear_reg_deaths): New function. - (rest_of_handle_life): Added parm to call to df_lr_add_problem and - df_ur_add_problem. - * df-scan.c (df_scan_free_internal): Added code to clear new - bit vectors. - (df_scan_alloc): Added extra parameter and code to initialize - new bit vectors. - (df_scan_dump): Added code to dump new bit vectors. - (df_problem problem_SCAN): Added extra field. - (df_scan_add_problem): Added flags parameter. - (df_rescan_blocks): Added code to remove deleted blocks from - bitmap and extra parm to call to df_scan_alloc. - (df_insn_create_insn_record): Removed return value. - (df_set_state): Removed function. - (df_ref_record, df_bb_refs_record, df_record_entry_block_defs, - df_record_exit_block_uses): Changed the way flags are processed. - (df_bb_refs_record, df_refs_record, df_record_exit_block_uses): - Restructured scanning to fixed hard regs so bitmaps could be - recorded for later use. - (df_has_eh_preds): Now public. - * df-core.c (df_mvs_dump, df_set_flags, df_clear_flags, - df_delete_basic_block): New function. - (df_init): Changed location of flags. - (df_add_problem): Added flags parameter and the way flags are - processed. - (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref, - debug_df_chain): Improved debugging output. - (clear_df): Added call to clear_reg_deaths. - * df.h: Some reordering to remove forward references. - (dataflow.flags): New field. - (df.flag): Deleted field. - (df_alloc_function): Added additional bitmap parameter. - (df_dependent_problem_function): New type. - (df_problem.changeable_flags): New field. - (df_ref_flags.DF_SCAN_INITIAL, - DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed. - (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df - parameter. - (df_add_problem, df_ru_add_problem, df_rd_add_problem, - df_lr_add_problem, df_ur_add_problem, df_urec_add_problem, - df_ri_add_problem, df_scan_add_problem): Added flags parameter. - (df_set_state): Removed function. - (df_set_flags, df_clear_flags, df_delete_basic_block, df_has_eh_preds) New functions. - * df-problems.c (df_get_dependent_problem): Deleted function. - (df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc, - df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks - parameter. - (df_ru_alloc, df_rd_alloc): Now resets all blocks. - (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump, - df_chains_dump): Fixed crash if problem was never run. - (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem, - df_ur_add_problem, df_urec_add_problem, df_chain_add_problem, - df_ri_add_problem): Processes flags in uniform manner. - (df_lr_bb_local_compute): Fixed case to account for return value - correctly. - (df_lr_bb_local_compute): Changed processing of exit block. - (df_lr_transfer_function): Added hook to call dce. - (df_lr_free): Added lr problem data. - (df_set_notes_for_mw, df_reg_lifetime): Removed function. - (df_lr_simulate_artificial_refs_at_end, df_lr_simulate_one_insn, - df_kill_notes, df_set_unused_notes_for_mw, df_set_dead_notes_for_mw): - New function. - (df_ri_alloc, df_ri_bb_compute, df_create_unused_note, - df_ri_bb_compute, df_ri_compute, df_ri_free, df_ri_add_problem): - Added functionality to compute register information. - dce.c (deletable_insn_p): Cannot delete PREFETCHes. - (delete_unmarked_insns): Also delete noop moves as well as support for - calling dce from df. - (prescan_insns_for_dce, rest_of_handle_dce, end_fast_dce, - dce_process_block, rest_of_handle_fast_dce, - rest_of_handle_dse): Restructured to handle being directly called from - df. - - -2006-03-14 Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h: Added pass to clear other dataflow infomation out. - * final.c (rest_of_handle_final, rest_of_clean_state): Cleared out - references to df. - (rest_of_clean_state) Added regstack_completed. - * reorg.c (fill_simple_delay_slots, fill_slots_from_thread, - fill_eager_delay_slots, make_return_insns): Added df parameter to function. - (make_return_insns, dbr_schedule) Added df parameter to calls. - * flow.c (update_life_info): Added glue code to df calls. - * df-scan.c (df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added - code to properly handle multiword hard registers. - (df_ref_create_structure, df_ref_record): Added code to properly handle subregs. - (df_ref_create_structure): Changed switching structure. - (df_bb_refs_record): Fixed case where duplicate artificial refs - were created. - (df_record_entry_block_defs): Added code to make stack pointer - live in entry block. Refined cases where frame pointer is needed. - * df-core.c (df_mvs_dump, clear_df): New function. - (pass_clear_df): New pass structure. - (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref, - debug_df_chain): Improved debugging output. - * df.h: Some reordering to remove forward reference. - (df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL): New fields. - (df_ref_flags.DF_REF_DIES_AFTER_THIS_USE): Removed. - (df_mw_hardreg): New struct. - (DF_INSN_UID_MWS): New macro. - (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df - parameter. - * rtl.h (regstack_completed): New global var. - * resource.c (mark_target_live_regs): Added passed in instance of - df. - * resource.h (mark_target_live_regs): Ditto. - * df-problems.c (df_chain_dump): Removed df parameter. - (df_ru_bb_local_compute_process_def, - df_rd_bb_local_compute_process_def, df_lr_bb_local_compute, - df_lr_bb_local_compute, df_chain_create_bb): Made subreg aware. - (df_ru_bb_local_compute, df_rd_bb_local_compute, - df_lr_bb_local_compute, df_lr_bb_local_compute, - df_chain_create_bb): Cleanup to use proper macros. - (df_ur_local_finalize, df_ur_local_finalize): Removed unnecessary - code to fixup bitvectors. - (df_ri_alloc): Cleared lifetime. - (df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw, - df_create_unused_note): New function. - (df_ri_bb_compute, df_ri_compute): Added code to create/update - REG_DEAD and REG_UNUSED notes. - * reg-stack.c (regstack_completed): New variable. - (reg_to_stack): Modified to use it's own instance of df. - (rest_of_handle_stack_regs): Removed most cleanup code. - * Makefile.in (reorg.o, RESOURCE_H): Added dependancy to df.h. - (final.o): Removed dependency to df.h - * passes.c (pass_magic_life): Removed. - (pass_clear_df): Added. - * dce.c (prescan_insns_for_dce, end_fast_dce): Now works if no instance of - df is available. - (dce_process_block): Made subreg aware. - (rest_of_handle_fast_dce): Reset bitvectors when iterating. - (prescan_insns_for_dse): Removed useless code. - -2006-02-06 Daniel Berlin <dberlin@dberlin.org> - - * doc/rtl.texi: Document REG_LIBCALL_ID. - * optabs.c (libcall_id): New variable. - (emit_no_conflict_block): Use it to emit - REG_LIBCALL_ID. - (emit_libcall_block): Ditto. - * combine.c (distribute_notes): Deal with - REG_LIBCALL_ID. - * reg-notes.def (LIBCALL_ID): New note. - * dce.c (marked_libcalls): New variable. - (in_libcall): Removed. - (mark_insn): Mark which libcalls we need to fully mark. - (mark_libcall_insns): New function. - (end_dce): Free marked_libcalls. - (init_dce): Allocate marked_libcalls. - Call mark_libcall_insns. - -2006-01-17 Kenneth Zadeck <zadeck@naturalbridge.com> - * df-core.c (df_iterative_dataflow): Added debugging assert. - (df_insn_uid_debug): New debugging function. - (df_insn_debug): Changed to used df_insn_uid_debug. - (df_analyze_problem): Made public. - * df.h (df_analyze_problem): Ditto. - * cfgcleanup.c (cleanup_cfg): Now calls run_fsst_dce. - * flow.c (update_life_info): Ditto. - * dce.c (init_dce, mark_insn, - mark_nonreg_stores, prescan_insns_for_dce): Added parameter so - that they could be called from both handle_rest_of_dce and - handle_rest_of_fast_dce. - (marked_insn_p): Added code to be tolerant of artifical defs, - which do not have insns. - (mark_nonreg_stores_2): New function. - (mark_artificial_uses, mark_reg_dependencies, store_base_local, - mark_escaping_stores, mark_dependent_stores, - prescan_insns_for_dse): Added parameter to mark_insn. - (rest_of_handle_dce): Added parameter to prescan_insns_for_dce. - (record_stores): Added parameter to mark_non_reg_stores. - (dce_process_block, rest_of_handle_fast_dce, gate_fast_dce, - run_fast_dce): New functions to do dce faster. - (rest_of_handle_dse) Added parameter to init_dce. - * dce.h (run_fast_dce): Added declaration. - -2006-01-17 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_hard_reg_init): Moved declaration of i outside macro. - -2006-01-17 Ian Lance Taylor <ian@airs.com> - - * combine.c (combine_instructions): Pass instruction - to note_stores and set_nonzero_bits_and_sign_copies. - (set_nonzero_bits_and_sign_copies): We can't assume - anything about non-zero bits for registers initialized with - themselves if the register is not live on entry to the block. - - -2005-01-17 Kenneth Zadeck <zadeck@naturalbridge.com> - - PR dataflow/25799 - * df-problems.c (df_ru_confluence_n, df_rd_confluence_n): - Corrected confluence operator to remove bits from op2 before oring - with op1 rather than removing bits from op1. - * (df_ru_transfer_function): Corrected test on wrong bitmap which - caused infinite loop. - - -2005-01-17 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_scan_free_bb_info): Added basic block parameter to - be able to clean out basic block when not necessary. - (df_scan_free): Fixed to properly delete information if df is - unused before calling df_finish. - (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink, - df_insn_create_insn_record, df_bb_refs_record): Fixed formatting - or comment typos. - (df_bb_refs_delete): New function. - (df_refs_delete): Moved per block code to df_bb_refs_delete. - * df-core.c (df_set_blocks): Added code to properly clean out - unused blocks if they are not part of the blocks to consider. - (df_compact_blocks): Added basic block parameter to free_bb_fun to - be able to clean out basic block when not necessary - * df.h (df_free_bb_function): Ditto. - (df_bb_refs_delete): New function. - * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info, - df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added - basic block parameter to be able to clean out basic block when not - necessary. - (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test. - (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free): - Fixed to properly delete information if df is unused before - calling df_finish. - -2006-01-06 Daniel Berlin <dberlin@dberlin.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-scan.c (df_reg_use_gen, df_reg_def_gen): Removed. - (df_insn_contains_asm_1): New function. - (df_insn_contains_asm): Rewritten to use for_each_rtx. - (df_insn_refs_record): Fixed call to df_insn_contains_asm and - the way calls are processed. - (df_insn_refs_record, df_bb_refs_record): Changed calls to not - need df_reg_use_gen or df_reg_def_gen. - * loop-invariant.c (free_inv_motion_data): Removed duplicated code typo. - -2005-12-30 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df-core.c (df_find_def, df_find_use): Added subreg aware code. - (df_reg_defined, df_reg_used): New function. - * df.h (df_reg_defined, df_reg_used): New function. - * loop-invariant.c (struct invariant, hash_invariant_expr, - eq_invariant_expr, find_or_insert_inv, find_or_insert_inv, - find_identical_invariants, merge_identical_invariants, - find_defs, create_new_invariant, check_dependencies, - find_invariant_insn, find_invariants, get_inv_cost, - best_gain_for_invariant, set_move_mark, move_invariants, - free_inv_motion_data): Functions added from mainline patch. - (invariant_for_use, hash_invariant_expr_1, invariant_expr_equal_p, - check_dependencies, create_new_invariant, find_invariant_insn - move_invariant_reg): Functions modified from mainline patch to be - consistent with latest df. - -2005-12-22 Paolo Bonzini <bonzini@gnu.org> - - * df-scan.c (df_ref_unlink): Fix thinko when REF == CHAIN. - -2005-12-22 Danny Berlin <dberlin@dberlin.org> - Richard Sandiford <richard@codesourcery.com> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * tree-pass.h: Added passes for new dce and dse. - * flow.c (update_life_info, propagate_block): Added hooks to - call new dead code elimination. - * common.opt (flag_flow_dce, flag_new_dce): Ditto. - * passes.c (init_optimization_passes): Ditto. - * cfgcleanup.c (cleanup_cfg): Ditto. - * timevar.def: New time vars for dce and dse. - (propagate_block_delete_insn): Added debugging. - * dce.c: New File containing dead code elimination and dead - store elimination based on df. - -2005-12-19 Kenneth Zadeck <zadeck@naturalbridge.com> - - * flow.c (update_life_info, count_or_remove_death_notes): Fixed - latent bug that could happen if update_life_info was called with a - blocks parameter and the call to cleanup_cfg actually deleted one - of those blocks. - * loop-invariant.c (move_loop_invariants): Fixed df - initialization. - * struct-equiv.c (struct_equiv_init): Made dataflow compatible with - df. - - -2005-12-18 Daniel Berlin <dberlin@dberlin.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * fwprop.c (local_ref_killed_between_p): New Function. - (use_killed_between, varying_mem_p, all_uses_available_at, - update_df, subst, forward_propagate_subreg, - forward_propagate_and_simplify, forward_propagate_into, fwprop, - fwprop_addr): Changes to support modifications to df datastructures. - * ddg.c (add_deps_for_def, add_deps_for_use, build_inter_loop_deps): - Ditto. - * flow.c (verify_local_live_at_start, update_life_info, - update_life_info, initialize_uninitialized_subregs, - propagate_one_insn, init_propagate_block_info, - init_propagate_block_info, regno_clobbered_at_setjmp, - rest_of_handle_life): Ditto. - * modulo-sched.c (sms_schedule): Ditto. - * web.c (union_defs, entry_register, web_main): Ditto. - * global.c (global_alloc, global_conflicts, mark_elimination, - build_insn_chain, rest_of_handle_global_alloc): Ditto. - * ifcvt.c (find_if_case_1, if_convert): Ditto. - * loop_invariant.c (find_defs, record_use, find_invariant_insn, - find_invariants_to_move, move_invariant_reg, move_invariant_reg, - free_inv_motion_data, move_loop_invariants): - * bb-reorder.c (rest_of_handle_reorder_blocks): Ditto. - * reg-stack.c (reg_to_stack): Ditto. - * postreload.c (reload_combine): Changed set reference to - reflect different dataflow problem. - * reload.c (push_reload, find_dummy_reload): Ditto. - * postreload.c (rest_of_handle_postreload): Fixed typo in comment. - * tree-pass.h: Added pass_reset_df_after_reload. - * df.c: Removed, rewritten as df-core.c, df-problems.c and df-scan.c. - * df-scan.c: The scanning fuctions, once in df.c, completely - rewritten so that they now fully model the functionality of - register usage at the backend. - * cfgrtl.c (dump_regset_in, dump_regset_out): New dataflow - * print functions. - (rtl_dump_bb, print_rtl_with_bb): Changed to use - dump_regset_in, dump_regset_out). - * sched_deps (sched_analyze_1): Changed to used renamed - df_read_modify_subreg_p (was read_modify_subreg_p). - (df_scan_free_internal, df_scan_get_bb_info, - df_scan_set_bb_info, df_scan_free_bb_info, df_scan_alloc, - df_scan_free, df_scan_dump, df_scan_add_problem, - df_grow_reg_info, df_grow_ref_info, df_grow_insn_info, - df_rescan_blocks, df_ref_create, df_get_artificial_defs, - df_get_artificial_uses, df_reg_chain_create, df_ref_unlink, - df_reg_chain_unlink, df_ref_remove, - df_insn_create_insn_record, df_insn_refs_delete, - df_refs_delete, df_reorganize_refs, df_reg_use_gen, - df_reg_def_gen, df_set_state, df_ref_create_structure, - df_ref_record, df_read_modify_subreg_p, df_def_record_1, - df_defs_record, df_uses_record, df_insn_contains_asm, - df_insn_refs_record, df_bb_refs_record, df_refs_record, - df_mark_reg, df_record_exit_block_uses, df_hard_reg_init): New functions. - * df-core.c: The core dataflow solver and glue routines for - rtl dataflow. - (df_init, df_add_problem, df_set_blocks, df_finish, - df_hybrid_search_forward, df_hybrid_search_backward, - df_iterative_dataflow, df_prune_to_subcfg, - df_analyze_problem, df_analyze, df_get_bb_info, - df_set_bb_info, df_analyze_simple_change_some_blocks, - df_analyze_simple_change_one_block, df_compact_blocks, - df_bb_replace, df_bb_regno_last_use_find, - df_bb_regno_first_def_find, df_bb_regno_last_def_find, - df_insn_regno_def_p, df_find_def, df_find_use, df_dump, - df_refs_chain_dump, df_regs_chain_dump, df_insn_debug, - df_insn_debug_regno, df_regno_debug, df_ref_debug, - debug_df_insn, debug_df_reg, debug_df_regno, debug_df_ref - debug_df_defno, debug_df_useno, reset_df_after_reload): New functions. - * df-problems.c: Seven concrete dataflow problems that use the scanning - in df-scan.c and are solved by the engine in df-core.c. - (df_get_dependent_problem, df_chain_create, - df_chain_unlink, df_chain_copy, df_get_live_in, - df_get_live_out, df_grow_bb_info, df_chain_dump, - df_print_bb_index, df_ref_bitmap, df_set_seen, - df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info, - df_ru_free_bb_info, df_ru_alloc, - df_ru_bb_local_compute_process_def, - df_ru_bb_local_compute_process_use, df_ru_bb_local_compute, - df_ru_local_compute, df_ru_init_solution, - df_ru_confluence_n, df_ru_transfer_function, df_ru_free, - df_ru_dump, df_ru_add_problem, df_rd_get_bb_info, - df_rd_set_bb_info, df_rd_free_bb_info, df_rd_alloc, - df_rd_bb_local_compute_process_def, df_rd_bb_local_compute, - df_rd_local_compute, df_rd_init_solution, - df_rd_confluence_n, df_rd_transfer_function, df_rd_free, - df_rd_dump, df_rd_add_problem, df_lr_get_bb_info, - df_lr_set_bb_info, df_lr_free_bb_info, df_lr_alloc, - df_lr_bb_local_compute, df_lr_local_compute, df_lr_init, - df_lr_confluence_0, df_lr_confluence_n, - df_lr_transfer_function, df_lr_free, df_lr_dump, - df_lr_add_problem, df_ur_get_bb_info, df_ur_set_bb_info, - df_ur_free_bb_info, df_ur_alloc, df_ur_bb_local_compute, - df_ur_local_compute, df_ur_init, df_ur_local_finalize, - df_ur_confluence_n, df_ur_transfer_function, df_ur_free, - df_ur_dump, df_ur_add_problem, df_urec_get_bb_info, - df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc, - df_urec_mark_reg_change, df_urec_check_earlyclobber, - df_urec_mark_reg_use_for_earlyclobber, - df_urec_mark_reg_use_for_earlyclobber_1, - df_urec_bb_local_compute, df_urec_local_compute, - df_urec_init, df_urec_local_finalize, df_urec_confluence_n, - df_urec_transfer_function, df_urec_free, df_urec_dump, - df_urec_add_problem, df_chain_alloc, - df_chain_create_bb_process_use, df_chain_create_bb, - df_chain_finalize, df_chain_free, df_chains_dump, - df_chain_add_problem, df_ri_alloc, df_ri_bb_compute, - df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem, - df_reg_lifetime) New functions. - df.h: Complete rewrite to support new df-problems.c, df-scan.c and - df-core.c. - -2005-12-14 Kenneth Zadeck <zadeck@naturalbridge.com> - - * bitmap.c (bitmap_clear_range): Removed extra debugging. - -2005-12-12 Paolo Bonzini <bonzini@gnu.org> - - * rtl.h (find_occurrence): Declare. - * rtlanal.c (find_occurrence): New. - (loc_mentioned_in_p): Accept a NULL value for IN. - (commutative_operand_precedence): Remove useless code looking - for constant RTX_EXTRA rtxen. - * common.opt (-fforward-propagate): New. - * tree-pass.h: Add forward propagation passes. - * passes.c: Ditto. - * timevar.def: Add forward propagation timevar. - * fwprop.c: New file. - * Makefile.in: Add fwprop.o dependencies. - -2005-11-28 Paolo Bonzini <bonzini@gnu.org> - - * config/sh/sh.c (sh_output_mi_thunk): Use df_finish. - -2005-11-17 Paolo Bonzini <bonzini@gnu.org> - - * df.h (struct df_reach): Add size field. - * df.c (df_realloc_reach_bitmaps, df_renumber_refs): New. - (df_reg_use_chain_create, df_reg_def_chain_create): Use them. - Fix GNU coding standards compliancy. - -2005-11-11 Richard Earnshaw <richard.earnshaw@arm.com> - - * df.c (df_chain_create): Move declaration of bb outside define - for ENABLE_CHECKING. - -2005-11-08 Paolo Bonzini <bonzini@gnu.org> - - * df.c (df_local_ref_killed_between_p): Reinstate. - -2005-11-08 Daniel Berlin <dberlin@dberlin.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * bitmap.c (bitmap_element_free, bitmap_element_link, bitmap_and, - bitmap_and_compl, bitmap_ior, bitmap_ior_into, bitmap_xor, - bitmap_xor_into): Fixed latent performance issue where current - was being properly kept up to date. - (bitmap_clear_range, bitmap_compl_and_into): New functions to support - dataflow analysis. - * df.c (df_rd_confluence_n, df_alloc_reach_bitmaps, df_free_reach_bitmaps, - df_clear_reach_bitmaps, df_ru_confluence_n, df_lr_confluence_0, - df_lr_confluence_n, df_init, df_dump): Changed the way EH_USES is processed. - (df_bitmaps_alloc, df_bitmaps_free, - df_bb_reg_def_chain_create, df_bb_reg_def_chain_create, - df_reg_use_chain_create, df_rd_transfer_function, - df_alloc_reach_bitmaps, df_ref_bitmap, df_bb_rd_local_compute, - df_rd_local_compute, df_bb_ru_local_compute, df_analyze, - df_analyze_subcfg, df_analyze_simple_change_some_blocks): Fixed - performance problems by grouping all defs and uses - for the same pseudo into contigious ranges. - (df_bb_du_chain_create, df_bb_ud_chain_create): Combined in - new function df_bb_chain_create. - (df_chain_create, df_alloc_reach_bitmaps, df_free_reach_bitmaps, - df_clear_reach_bitmaps, df_ref_bitmap): New function. - (df_rd_init, df_rd_confluence_n, df_rd_transfer_function, - df_rd_set_dflow, df_ru_transfer_function, df_ru_confluence_n, - df_ru_transfer_function, df_ru_set_dflow, df_lr_transfer_function, - df_lr_set_dflow, df_lr_confluence_n, df_ur_transfer_function, - df_ur_set_dflow, df_ur_init, df_ur_transfer_function, df_ur_set_dflow - df_ur_confluence_n, hybrid_search_forward, hybrid_search_backward - iterative_dataflow): Changed interface for dataflow callback - functions to hide where the source of bitmaps. - (df_rd_set_bitmaps, df_ru_set_bitmaps, df_lr_set_bitmaps, - df_ur_set_bitmaps, df_bitmap_ior_edge): Removed as part of - changing dataflow callback interface. - (df_free, df_ref_create, df_ref_record_1, - df_record_exit_block_uses, df_refs_record, df_exit_lr_local_compute, - df_insn_move_before, df_local_ref_killed_between_p, - df_bb_regno_last_def_find, df_chain_dump, df_dump): - Added chains that go to artifical uses in exit block. - (df_exit_bb_reg_use_chain_create, df_exit_bb_chain_create): - New functions to support artifical uses in exit block. - (df_insn_refs_record): Added new DF_REF_CLOBBER ref type to - avoid creation of artifical chains for clobbers at call sites. - -2005-11-03 Paolo Bonzini <bonzini@gnu.org> - Steven Bosscher <stevenb@suse.de> - - * df.c (df_free): Fix call to df_bitmaps_free. - (df_bb_regno_last_def_find): Make it return what it is supposed - to return. - (df_local_ref_killed_between_p): New. - -2005-11-01 Daniel Berlin <dberlin@dberlin.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * flow.c (update_life_info): Added debugging. - (init_propagate_block_info): Fixed typo. - * df.c (df_refs_unlink, df_ref_record_1, df_ref_record, - read_modify_subreg_p, df_def_record_1, df_insn_refs_record): - Fixed control of when regs_ever_live is modified. - * combine.c: Documentation rot. - * reload1.c: Used wrong type of comment. - -2005-10-31 Jan Hubicka <jh@suse.cz> - - * reg-stack.c (subst_stack_regs_pat): Expect USEs to be ignored for - liveness. - (change_stack): Initialize partially dead registers. - (convert_regs_1): Handle dead return values. - (reg_to_stack): Switch to partial liveness. - (propagate_stack): Push in partially live stuff. - -2005-10-25 Daniel Berlin <dberlin@dberlin.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * cfgrtl.c (print_rtl_with_bb): Fixed problem with debugging - output of bitmaps. - * df.c (mark_reg_change): Fixed problem computing sizes of hard regs. - * reload1.c (reload): Fixed over agressive updating of bitmaps. - * sched-rgn.c (schedule_insns): Cleaned away some useless verification - code. - (rest_of_handle_sched2): Removed debugging. - - -2005-10-24 Kenneth Zadeck <zadeck@naturalbridge.com> - - * sched-rgn.c (check_live_1, update_live_1, rest_of_handle_sched): - Converted to use partially available liveness. - (init_regions, schedule_insns, rest_of_handle_sched): - Removed assertion checking based on death notes. - - -2005-10-23 Daniel Berlin <dberlin@dberlin.org> - Kenneth Zadeck <zadeck@naturalbridge.com> - - * df.c (df_bitmaps_alloc, df_lr_local_compute, df_compute_all_blocks): - Removed df->all_blocks. - (df_lr_local_compute): Added flag to indicate that - blocks was really the whole function. - (df_ref_record): Fixed missing case for memory refs. - (df_insn_refs_record): Fixed regs ever live processing. - (df_bb_refs_record): Removed debugging code. - (df_bb_lr_local_compute, notice_stack_pointer_modification, - df_bb_lr_local_compute): Moved stack pointer modification - detection code back to flow.c. - (df_bb_lr_local_compute, hybrid_search_forward, - hybrid_search_backward): Formatting cleanup. - (df_compute_all_blocks, notice_stack_pointer_modification): - Removed. - (df_analyze): Changed the definition of whole program to be all - reachable blocks rather than all blocks. - (df_analyze_subcfg, df_analyze_simple_change_some_blocks): Added - parameter to df_lr_local_compute. - (df_rtx_reg_replace): Fixed way it decided it was processing - entire function. - * df.h: Removed all_blocks from struct df definition. - * flow.c (notice_stack_pointer_modification_1, - notice_stack_pointer_modification): Added back. - (life_analysis): Added back call to - notice_stack_pointer_modification. - (struct tree_opt_pass pass_life, rest_of_handle_flow2): - Added debugging. - * gcse.c (gcse_main, bypass_jumps): Additional places where we had missed - in renumbering entry and exit blocks. - * global.c (global_alloc): Additional debugging code. - - -2005-10-19 Daniel Berlin <dberlin@dberlin.org> - - * df.c (df_lr_local_compute): Fix thinko regarding pseudos and call - defs. - -2005-10-19 Kenneth Zadeck <zadeck@naturalbridge.com> - - * df.c (df_bitmap_ior_edge, df_lr_confluence_0 - df_lr_confluence_n, df_ur_confluence_n, df_ur_set_bitmaps): New - functions. - (df_exit_lr_local_compute, dataflow_set_a_op_b): Removed - functions. - (df_ur_set_bitmaps, mark_reg_change, df_ur_local_finalize, - mark_reg_use_for_earlyclobber, df_ur_local_compute, - df_bb_reg_live_start, df_bb_reg_live_end, df_bb_reg_live_start_p, - df_bb_reg_live_end_p): Renamed "reaching registers" - problem (rr) to "uninitialized registers" problem. - (df_free): Changed variables freed. - (df_ref_record): Added more sophisticated hard register scan. - (df_insn_refs_record): Changed way invalidated_by_call is - processed. - (df_bb_refs_record, df_exit_lr_local_compute, - df_bb_lr_local_compute): Removed bad way to simulate edge functions. - There are now real confluence functions. - (notice_stack_pointer_modification): Disabled. - (df_bb_lr_local_compute): Disabled call to - notice_stack_pointer_modification. Added code to properly handle hard - regs at call site. - (df_lr_local_compute): Added more hard reg processing. - Changed order exit block is processed. - (df_init): Added some invariant hard regs initialization. - (df_refs_process): Removed artifical special case. - (df_print_bb_index, df_dump): Removed parameter to df_dump. - (hybrid_search_forward, hybrid_search_backward): Added - confluence function calls. - (iterative_dataflow): Added hack to initialize in and out sets - with hard registers. This will be removed later. - * df.h: Removed DF_ARTIFICIAL_DEFS. Renamed "reaching registers". - problem (rr) to "uninitialized registers" problem. Changed confluence - operator to general confluence functions. - * flow.c (verify_wide_reg, verify_local_live_at_start): Removed - parameter to df_dump. - * reg_stack.c (reg_to_stack): Ditto. - * sched_rgn.c (init_regions, schedule_insns): Ditto. - * web.c (web_main): Ditto. - * flow.c: (update_life_info): Removed DF_ARTIFICIAL_DEFS. - * global.c (global_alloc): Ditto. |