| blob | 84805049177d68acfa8fa3287498cd06d44c95ad |
1 2007-06-07 Kenneth Zadeck <zadeck@naturalbridge.com>
3 * emit-rtl.c (set_insn_deleted): Changed NOTE_LINE_NUMBER to
4 NOTE_KIND.
5 (emit_note_after): Fixed merge glitch.
6 * combine.c (try_combine): Changed NOTE_LINE_NUMBER to
7 NOTE_KIND.
8 * reg-stack.c (convert_regs_1): Fixed merge glitch.
9 * config/rs6000/rs6000.c (no_global_regs_above): Fixed merge typo.
10 (rs6000_emit_prologue): Fixed merge glitch.
12 2007-06-06 Kenneth Zadeck <zadeck@naturalbridge.com>
14 * regrename.c (do_replace): Removed ifdefed out code.
15 * fwprop.c: Fixed copyright.
16 * testsuite/Changelog.dataflow: Merged entry into
17 testsuite/Changelog. Deleted file.
18 * global.c: Fixed comments.
19 * recog.c (confirm_change_group): Fixed comments.
20 (peephole2_optimize): Removed ifdefed out code.
21 * gcse.c (try_replace_reg): Removed redundant changing and
22 rescanning of notes.
23 * rtl.h (SET_REGNO): Replaced brackets.
24 * stack-ptr-mod.c: Changed copyright years.
26 2007-06-06 Seongbae Park <seongbae.park@gmail.com>
28 * config/ia64/ia64.c (ia64_frame_info): Restored the comment
29 for the structure above. Removed left-over dead code from debugging.
30 (ia64_compute_frame_size): Comment cleanup.
31 (ia64_expand_prologue): Style fix. Debugging information header.
32 (ia64_init_expanders): Added a comment.
33 * config/ia64/ia64.h (ia64_init_expanders): Declaration moved
34 to ia64-protos.h
35 * config/ia64/ia64-protos.h (ia64_init_expanders): Declaration
36 moved from ia64.h
38 2007-06-06 Kenneth Zadeck <zadeck@naturalbridge.com>
40 * doc/rtl.text: Fixed spelling.
41 * dse.c (store_info, read_info, insn_info, bb_info, group_info,
42 deferred_change): Fixed formatting.
43 (step0): Renamed to dse_step0.
44 (step1): Renamed to dse_step1.
45 (step2_init): Renamed to dse_step2_init.
46 (step2_nospill): Renamed to dse_step2_nospill.
47 (step2_spill): Renamed to dse_step2_spill.
48 (step3_scan): Renamed to dse_step3_scan.
49 (step3_exit_block_scan): Renamed to dse_step3_exit_block_scan.
50 (step3): Renamed to dse_step3.
51 (step4_nospill): Renamed to dse_step4_nospill.
52 (step4_spill): Renamed to dse_step4_spill.
53 (step4): Renamed to dse_step4.
54 (step5_nospill): Renamed to dse_step5_nospill.
55 (step5_spill): Renamed to dse_step5_spill.
56 (step6): Renamed to dse_step6.
57 (rest_of_handle_dse): Updated names of functions.
58 * emit_rtl.c (verify_rtx_sharing, copy_rtx_if_shared_1,
59 copy_insn_1): Now calls shared_const_p.
60 * cselib.c (expand_loc, cselib_expand_value_rtx): Fixed comments.
61 (cselib_expand_value_rtx): Now calls shared_const_p.
62 * rtl.c (shared_const_p): New function.
63 (copy_rtx): Now calls shared_const_p.
64 * rtl.h (shared_const_p): New function.
66 2007-06-06 Kenneth Zadeck <zadeck@naturalbridge.com>
68 * combine.c (find_single_use_1): Fixed comment and changed 0 to NULL.
69 (find_single_use): Removed comment.
70 (delete_noop_move): Removed unnecessary continue and removed
71 nnoops counter. Function now does not return anything.
73 2007-05-31 Kenneth Zadeck <zadeck@naturalbridge.com>
75 * bitmap.c (bitmap_elt_copy): Fixed comment.
76 * cfganal.c (inverted_post_order_compute): Fixed comment and
77 formatting of test.
78 * basic_block.h: Removed include rtl.h.
79 (enum bb_flags): Renumbered.
80 (FOR_EACH_BB_IN_REGION, FOR_EACH_BB_REVERSE_IN_REGION): Removed.
81 (FOR_BB_INSNS_SAFE, FOR_BB_INSNS_REVERSE_SAFE): Fixed formatting.
83 2007-05-30 Kenneth Zadeck <zadeck@naturalbridge.com>
85 * auto-inc-dec.c: Updated copyright date.
86 (enum form, set_inc_state, dump_inc_insn, move_dead_notes,
87 insert_move_insn_before, attempt_change, try_merge, find_address,
88 find_mem): Reformatted.
89 (reverse_inc, find_address): Fixed spelling.
90 (attempt_change, try_merge): Add default case.
91 * basic-block.h: Updated copyright date.
92 * bitmap.c: Updated copyright date.
93 * bitmap.h: Updated copyright date.
94 * cfganal.c: Updated copyright date.
95 * cfg.c: Updated copyright date.
96 * cfghooks.h: Updated copyright date.
97 * cfglayout.c: Updated copyright date.
98 * cfgloop.c: Updated copyright date.
99 * cfgloop.h: Updated copyright date.
100 * cfgrtl.c: Updated copyright date.
101 * combine.c: Updated copyright date.
102 * combine-stack-adj.c: Updated copyright date.
103 * config/arc/arc.c: Updated copyright date.
104 * config/arm/arm.c: (use_return_insn,
105 arm_compute_save_reg0_reg12_mask, arm_get_frame_offsets,
106 arm_save_coproc_regs): Fixed formatting.
107 * config/bfin/bfin.c: Updated copyright date.
108 * config/c4x/c4x.c: Updated copyright date.
109 * config/c4x/c4x.h: Updated copyright date.
110 * config/cris/cris.c: Updated copyright date.
111 * config/crx/crx.c: Updated copyright date.
112 * config/crx/crx.h: Updated copyright date.
113 * config/darwin.c: Updated copyright date.
114 * config/frv/frv.c: Updated copyright date.
115 * config/h8300/h8300.c: Updated copyright date.
116 * config/h8300/h8300.md: Updated copyright date.
117 * config/ia64/ia64.h: Updated copyright date.
118 * config/iq2000/iq2000.c: Updated copyright date.
119 * config/iq2000/iq2000.h: Updated copyright date.
120 * config/m32c/m32c.c: Updated copyright date.
121 * config/m68hc11/m68hc11.c: Updated copyright date.
122 * config/m68k/m68k.c: Updated copyright date.
123 * config/mips/mips.c: Updated copyright date.
124 * config/mips/mips.md: Updated copyright date.
125 * config/mmix/mmix.c: Updated copyright date.
126 * config/mn10300/mn10300.c: Updated copyright date.
127 * config/mt/mt.c: Updated copyright date.
128 (mt_print_operand_simple_address, mt_print_operand): Fixed formatting.
129 * config/mt/mt.h: Updated copyright date and fixed formatting.
130 * config/pa/pa.c: Updated copyright date.
131 * config/pa/pa.h: Updated copyright date.
132 * config/pdp11/pdp11.c: Updated copyright date.
133 * config/pdp11/pdp11.h: Updated copyright date.
134 * config/rs6000/predicates.md: Updated copyright date.
135 * config/s390/s390.c: Updated copyright date.
136 * config/score/score-mdaux.c: Updated copyright date.
137 * config/sh/sh.c: Updated copyright date.
138 * config/sh/sh.md: Updated copyright date.
139 * config/sparc/sparc.c: Updated copyright date.
140 * config/stormy16/stormy16.c: Updated copyright date.
141 * config/v850/v850.c: Updated copyright date.
142 * config/vax/vax.c: Updated copyright date.
143 * cselib.c: Updated copyright date.
144 (expand_loc): Fixed formatting.
145 * cselib.h: Updated copyright date.
146 * dbgcnt.c: Updated copyright date.
147 * dbgcnt.def: Updated copyright date.
148 * dbgcnt.h: Updated copyright date.
149 * dce.c: Updated copyright date.
150 (fast_dce): Fixed formatting.
151 * dce.h: Updated copyright date.
152 * ddg.c: Updated copyright date.
153 * ddg.h: Updated copyright date.
154 * df-core.c: Updated copyright date.
155 * df.h: Updated copyright date and fixed formatting.
156 * doc/cfg.texi: Updated copyright date.
157 * doc/rtl.texi: Updated copyright date.
158 * dominance.c: Updated copyright date.
159 * function.h: Updated copyright date.
160 * fwprop.c: Updated copyright date.
161 * global.c: Updated copyright date.
162 * integrate.c: Updated copyright date.
163 * local-alloc.c: Updated copyright date.
164 * loop-init.c: Updated copyright date.
165 * loop-invariant.c: Updated copyright date.
166 * loop-iv.c: Updated copyright date.
167 * optabs.h: Updated copyright date.
168 * output.h: Updated copyright date.
169 * postreload.c: Updated copyright date.
170 * postreload-gcse.c: Updated copyright date.
171 * recog.h: Updated copyright date.
172 * regmove.c: Updated copyright date.
173 * reg-notes.def: Updated copyright date.
174 * regrename.c: Updated copyright date.
175 * reg-stack.c: Updated copyright date.
176 * reload.c: Updated copyright date.
177 * reorg.c: Updated copyright date.
178 * resource.c: Updated copyright date.
179 * resource.h: Updated copyright date.
180 * rtl-factoring.c: Updated copyright date.
181 * sbitmap.c: Updated copyright date.
182 * sbitmap.h: Updated copyright date.
183 * sched-deps.c: Updated copyright date.
184 * sched-ebb.c: Updated copyright date.
185 * sched-int.h: Updated copyright date.
186 * sched-rgn.c: Updated copyright date.
187 * sched-vis.c: Updated copyright date.
188 * see.c: Updated copyright date.
189 (see_handle_relevant_uses): Fixed formatting.
190 * stack-ptr-mod.c: Updated copyright date.
191 * struct-equiv.c: Updated copyright date.
192 * tracer.c: Updated copyright date.
193 * web.c: Updated copyright date.
195 2007-05-30 Kenneth Zadeck <zadeck@naturalbridge.com>
197 * auto-inc-dec.c (mem_insn.mem_pat): Renamed mem_loc.
198 (attempt_change): Fixed comments and renamed new_addr_pat to new_addr.
199 (try_merge, attempt_change, find_address, find_mem): Renamed
200 mem_pat to mem_loc.
202 2007-05-27 Kenneth Zadeck <zadeck@naturalbridge.com>
204 * df-core.c (df_hybrid_search_forward, df_hybrid_search_backward
205 df_iterative_dataflow): Removed.
206 * df.h (df_iterative_dataflow): Removed.
208 2007-05-27 Kenneth Zadeck <zadeck@naturalbridge.com>
210 * dse.c (replace_inc_dec, delete_dead_store_insn, scan_insn,
211 dse_record_singleton_alias_set, dse_confluence_0,
212 dse_confluence_n, step4, step5_nospill, step5_spill,
213 rest_of_handle_dse, pass_rtl_dse1, pass_rtl_dse2): Removed code
214 to allow dse to run on trunk in front of flow.c
215 (problem): Removed.
217 2007-05-26 Kaz Kojima <kkojima@gcc.gnu.org>
219 * bt-load.c: Include recog.h.
220 (move_btr_def): Use validate_replace_rtx instead of replace_rtx.
222 2007-05-25 Steven Bosscher <steven@gcc.gnu.org>
224 * emit-rtl.c (try_split): Remove unnecessary setting/resetting
225 of the USED flags of TRIAL.
227 2007-05-25 Kenneth Zadeck <zadeck@naturalbridge.com>
229 * dse.c (insn_info.stack_read, group_info.frame_related): New
230 variable.
231 (get_group_info): Initialize frame_related.
232 (scan_insn, scan_reads_nospill): Remove frame_related stores from
233 consideration for const functions.
234 (step1, step2_init, step3_exit_block_scan): Use frame_related field.
235 (step3_scan, step5_nospill): Change parameters to scan_reads_nospill.
237 2007-05-25 Ian Lance Taylor <iant@google.com>
239 * reload1.c (mark_home_live_1): New static function, broken out of
240 mark_home_live.
241 (mark_home_live): Call mark_home_live_1.
242 (scan_paradoxical_subregs): Call mark_home_live_1.
244 2007-05-24 Andrew Pinski <andrew_pinski@playstation.sony.com>
246 * config/spu/spu.md (smulsi3_highpart): Unshare the rtl chain.
247 (umulsi3_highpart): Likewise.
249 2007-05-24 Eric Christopher <echristo@gmail.com>
251 * config/mips/mips.c (mips_save_reg_p): Use df_regs_ever_live_p.
252 (mips_output_mi_thunk): Use SET_REGNO.
254 2007-05-23 Kaz Kojima <kkojima@gcc.gnu.org>
256 * config/sh/sh.c (sh_expand_prologue): Fix typo.
258 2007-05-23 Paolo Bonzini <bonzini@gnu.org>
260 * emit-rtl.c [!HAVE_blockage]: Provide a gen_blockage routine here.
261 * rtl.h (gen_blockage): Add prototype.
263 * cse.c (last_bb_reg_used_in, reg_used_in_multiple_bb): Remove.
264 (mark_reg_use_bb): Remove.
265 (cse_main): Remove the initialization of reg_used_in_multiple_bb
266 and last_bb_reg_used_in, and the insn walk that calls mark_reg_use_bb.
267 (cse_ebb_live_in, cse_ebb_live_out): New.
268 (cse_extended_basic_block): Set them.
269 (make_regs_eqv): Use them.
271 2007-05-23 Kenneth Zadeck <zadeck@naturalbridge.com>
273 * df-scan.c (df_get_regular_block_artificial_uses): Set the
274 HARD_FRAME_POINTER not the FRAME_POINTER after reload. Set both
275 the HARD_FRAME_POINTER and the FRAME_POINTER before reload.
276 * dse.c (const_or_frame_p): Removed unnecessary test.
277 * config/s390/s390.c (s390_emit_prologue): Removed REG_MAYBE_DEAD
278 notes.
279 * config/spu/spu.c (frame_emit_add_imm, spu_expand_prologue): Ditto.
280 * config/i386/i386.c (ix86_expand_prologue): Ditto.
281 * config/sh/sh.c (sh_expand_prologue): Ditto.
282 * config/sh/sh.md (define_expand): Ditto.
283 * config/iq2000/iq2000.c (iq2000_expand_prologue): Ditto.
284 * config/mn10300/mn10300.c (expand_prologue): Ditto.
285 * config/ia64/ia64.c (spill_restore_mem, ia64_expand_prologue): Ditto.
286 * config/m68k/m68k.c (m68k_expand_prologue): Ditto.
287 * config/rs6000/rs6000.c (rs6000_maybe_dead): Removed.
288 (rs6000_emit_load_toc_table, rs6000_emit_prologue): Removed calls
289 to rs6000_maybe_dead.
290 * config/bfin/bfin.c (expand_interrupt_handler_prologue,
291 bfin_load_pic_reg): Removed REG_MAYBE_DEAD notes.
292 * reg-notes.def (MAYBE_DEAD): Removed.
293 * dce.c (deletable_insn_p): Removed test of RTX_FRAME_RELATED_P.
295 2007-05-21 Kenneth Zadeck <zadeck@naturalbridge.com>
297 * dbgcnt.def: Fixed comment.
298 * df-scan.c (df_get_regular_block_artificial_uses): Added frame
299 pointer after reload if frame_pointer_needed.
300 * df.h (df_simulate_defs, df_simulate_uses): Made public.
301 * df-problems.c (df_simulate_defs, df_simulate_uses): Made public.
302 * dce.c (deletable_insn_p): Only allow frame-related insns to be
303 deleted if there is a REG_MAYBE_DEAD note.
304 (dce_process_block): Now uses df_simulate_defs and
305 df_simulate_uses.
307 2007-05-20 Kenneth Zadeck <zadeck@naturalbridge.com>
309 * cfg.c (dump_bb_info): Fixed dump formatting problem.
310 * dse.c (const_or_frame_p): New function.
311 (canon_address): Fixed dump info and now callse const_or_frame_p
312 rather than rtx_varies_p. Also do simplification inside cselib.
313 (record_store): Fixed dump info.
314 * cselib.c (expand_loc): Fixed dump info.
315 (cselib_expand_value_rtx): Fixed dump info and now call
316 simplify_rtx on results of expansion.
318 2007-05-17 Kenneth Zadeck <zadeck@naturalbridge.com>
320 * ifcvt.c (dead_or_predictable): Replaced insn dfa with new df
321 routines.
322 * recog.c (peephole2_optimize): Replaced
323 df_lr_simulate_artificial_refs_at_end and df_lr_simulate_one_insn
324 with df_simulate_artificial_refs_at_end and
325 df_simulate_one_insn_backwards.
326 * rtl-factoring.c (collect_pattern_seqs, clear_regs_live_in_seq):
327 Ditto.
328 * df.h (df_lr_simulate_artificial_refs_at_end,
329 df_lr_simulate_one_insn): Removed.
330 (df_simulate_find_defs, df_simulate_artificial_refs_at_top,
331 df_simulate_one_insn_forwards, df_simulate_artificial_refs_at_end,
332 df_simulate_one_insn_backwards): Added.
333 * df-problems.c (df_lr_bb_local_compute): Removed unnecessary
334 tests.
335 (df_lr_simulate_artificial_refs_at_end, df_lr_simulate_one_insn):
336 Removed.
337 (df_simulate_find_defs, df_simulate_defs, df_simulate_uses,
338 df_simulate_fixup_sets, df_simulate_artificial_refs_at_top,
339 df_simulate_one_insn_forwards, df_simulate_artificial_refs_at_end,
340 df_simulate_one_insn_backwards): Added.
342 2007-05-16 Seongbae Park <seongbae.park@gmail.com>
344 * ifcvt.c (dead_or_predicable): Update test_live as well as test_set.
345 (if_convert): New parameter RECOMPUTE_DOMINANCE.
346 (rest_of_handle_if_conversion, rest_of_handle_if_after_combine,
347 rest_of_handle_if_after_reload): New parameter to if_convert.
349 2007-05-16 Kenneth Zadeck <zadeck@naturalbridge.com>
351 * regstat.c (regstat_init_n_sets_and_refs, regstat_compute_ri,
352 regstat_compute_calls_crossed): Added time variable TV_REG_STATS.
353 * timevar.def (TV_REG_STATS): Added.
354 (TV_DF_RI): Deleted.
355 * df-problems.c (df_print_bb_index): Added identifer for eh blocks.
356 * dce.c (deletable_insn_p): Added code to not delete
357 RTX_FRAME_RELATED_P insns.
358 (dce_process_block): Removed insns_deleted and added code to reset
359 live set before confluence function.
360 (rest_of_handle_fast_dce): Added code to turn off df's version of dce if
361 flag_dce is not set and added DF_NO_INSN_RESCAN to flags that are cleared.
363 2007-05-10 Roman Zippel <zippel@linux-m68k.org>
365 * config/m68k/m68k.c: include df.h.
366 (m68k_output_mi_thunk): use SET_REGNO.
368 2007-05-09 Kaz Kojima <kkojima@gcc.gnu.org>
370 * df-core.c (df_get_bb_dirty): Return false if df_live is null.
372 2007-05-09 Kaz Kojima <kkojima@gcc.gnu.org>
374 * config/sh/sh.c (r0_life_regions): New variable.
375 (find_r0_life_regions): New static function.
376 (sh_md_init_global): Call find_r0_life_regions when
377 reload_completed isn't set.
378 (R0_MAX_LIVE_LENGTH): Remove.
379 (high__pressure): Return 1 if r0_life_regions is over
380 the given threshold.
382 2007-05-08 Kenneth Zadeck <zadeck@naturalbridge.com>
384 * regrename.c (regrename_optimize): Renamed df_ri_add_problem to
385 df_note_add_problem.
386 * auto-inc-dec.c (rest_of_handle_auto_inc_dec): Ditto.
387 * sched_ebb.c (schedule_ebbs): Renamed df_ri_add_problem to
388 df_note_add_problem. Added call to regstat_compute_calls_crossed
389 and regstat_free_calls_crossed and deleted call to
390 allocate_reg_life_data.
391 * regstat.c (regstat_init_n_sets_and_refs,
392 regstat_free_n_sets_and_refs, regstat_bb_compute_ri,
393 regstat_compute_ri, regstat_free_ri,
394 regstat_bb_compute_calls_crossed, regstat_compute_calls_crossed,
395 regstat_free_calls_crossed): New functions.
396 * final.c (rest_of_handle_final): Removed call to free_reg_info.
397 * cfg.c (dump_reg_info): Many changes to accomodate new
398 implementation of REG_BASIC_BLOCK, REG_N_SETS, REG_N_DEATHS,
399 REG_N_CALLS_CROSSED.
400 * toplev.c (finalize): Removed call to free_reg_info.
401 * regs.h (REG_BASIC_BLOCK, REG_N_SETS, REG_N_REFS, REG_N_DEATHS,
402 REG_N_CALLS_CROSSED, REG_FREQ, REG_N_THROWING_CALLS_CROSSED,
403 REG_LIVE_LENGTH, REG_BASIC_BLOCK): Changed implementation.
404 (allocate_reg_life_data, allocate_reg_info, clear_reg_info_regno):
405 Removed.
406 * mode-switching.c (optimize_mode_switching): Removed call to
407 df_ri_add_problem.
408 * modulo-sched.c (sms_schedule): Renamed df_ri_add_problem to
409 df_note_add_problem. Added call to regstat_compute_calls_crossed
410 and regstat_free_calls_crossed
411 (rest_of_handle_sms): Deleted call to allocate_reg_info.
412 * global.c (compute_regsets): Moved all dataflow to local_alloc.
413 (rest_of_handle_global_alloc): Call regstat_free_n_sets_and_refs
414 and regstat_free_ri.
415 * ifcvt.c (dead_or_predicable, if_convert): Removed calls to
416 allocate_reg_info.
417 * timevar.def (TV_DF_NOTE): New timevar.
418 * regmove.c (copy_src_to_dest, regmove_optimize, fixup_match_1):
419 Changed calls to REG_N_SETS that changed the value to
420 INC_REG_N_SETS.
421 (regmove_optimize): Moved calls that compute df and register info
422 to after early out for flag_non_call_exceptions. Added calls to
423 regstat_init_n_sets_and_refs, regstat_compute_ri,
424 regstat_free_n_sets_and_refs and regstat_free_ri.
425 * local_alloc (local_alloc, equiv_init_movable_p): Added
426 NUM_FIXED_BLOCKS to tests for REG_BASIC_BLOCK.
427 (update_equiv_regs): Added code to update bitvectors when certain
428 local allocations are done. Changed REG_N_SETS to
429 DF_REG_DEF_COUNT. Added NUM_FIXED_BLOCKS to tests for
430 REG_BASIC_BLOCK.
431 (rest_of_handle_local_alloc): Moved computation of UREC from
432 global to here.
433 * function.c (regno_clobbered_at_setjmp): Added to test to see if
434 regno was valid. Moved function size test higher in call
435 heirarchy.
436 (setjmp_args_warning): Added tests to early out of check if
437 function is small or there are no setjmps.
438 * df.h (DF_RI, df_ri, DF_RI_LIFE, DF_RI_SETJMP, df_ri_add_problem,
439 df_ri_get_setjmp_crosses): Deleted.
440 (DF_NOTE, df_note, df_note_add_problem): Added.
441 * gcse (gcse_main): Removed computation of RI information and
442 removed calls to allocate_reg_info.
443 * init-regs.c (initialize_uninitialized_regs): Removed call to
444 allocate_reg_life_data.
445 * regclass.c (reg_info_data, reg_info_head, reg_pref_buffer,
446 allocate_reg_life_data, allocate_reg_info, clear_reg_info_regno):
447 Deleted.
448 (scan_one_insn): Changed some calls to REG_N_SETS and REG_N_REFS
449 to INC_REG_N_SETS and INC_REG_N_REFS.
450 (regclass): Allocate register information locally.
451 (free_reg_info): Changed the structures freed.
452 (reg_scan): Removed call to allocate_reg_info and changed call to
453 REG_N_SETS to DF_REG_DEF_COUNT.
454 * combine (try_combine, remove_death, distribute_notes): Removed
455 computation of REG_N_DEATHS. Changed some references to
456 REG_N_SETS to INC_REG_N_SETS.
457 (rest_of_handle_combine): Replaced call to df_ri_add_problem with
458 call to df_note_add_problem, and added call to
459 regstat_init_n_sets_and_refs and regstat_free_n_sets_and_refs.
460 * bb-reorder (rest_of_handle_partition_blocks): Removed call to
461 allocate_reg_life_data.
462 * df-problems.c (reg_n_info, df_ri_problem_p, df_ri_problem_data,
463 df_ri_alloc, df_ri_start_dump, df_ri_get_setjmp_crosses): Removed.
464 (print_note): Renamed df_print_note.
465 (df_kill_notes): Added parameters to save notes rather than just
466 let them die and remake them.
467 (df_set_note): New function.
468 (df_set_unused_notes_for_mw, df_set_dead_notes_for_mw,
469 df_create_unused_note, df_ri_bb_compute, df_ri_compute,
470 df_ri_free): Removed ri information computations.
471 (df_ri_bb_compute): Renamed to df_note_bb_compute.
472 (df_ri_compute): Renamed to df_note_compute.
473 (df_ri_free): Renamed to df_note_free.
474 (problem_RI): Renamed to problem_NOTE
475 (df_ri_add_problem): Renamed to df_note_add_problem.
476 * (reg-stack.c): Changed call to df_ri_add_problem to
477 df_note_add_problem.
478 * combine-stack-adj.c (rest_of_handle_stack_adjustments): Ditto.
479 * (Makefile.in): Added regstat.o.
480 * sched-rgn.c (schedule_insns): Changed call to df_ri_add_problem to
481 df_note_add_problem. Added calls to regstat_compute_calls_crossed
482 and regstat_free_calls_crossed.
483 * basic_block.h (REG_BLOCK_UNKNOWN, REG_BLOCK_GLOBAL,
484 REG_BASIC_BLOCK): Moved to regs.h.
485 * config/sparc/sparc.c (sparc_check_64): Changed REG_N_SETS to
486 DF_REG_DEF_COUNT.
487 * config/sh/sh.c (flow_dependent_p_1): Ditto.
488 (sh_md_init): Removed useless attempt to measure pressure on R0.
489 * config/m68k/m68k.c (m68k_output_mi_thunk): Removed call to
490 allocate_reg_info.
491 * reload1.c (delete_output_reload): Added NUM_FIXED_BLOCKS to
492 tests for REG_BASIC_BLOCK.
494 2007-05-07 Seongbae Park <seongbae.park@gmail.com>
496 * dse.c (add_wild_read): Do not remove read_info_t
497 that has non-zero alias_set.
498 (canon_address): Remove unused parameter for_read and bb_info.
499 Remove the unused code path, and update the dump message.
500 (record_store): Accomodate canon_address signature change.
501 (check_mem_read_rtx): Don't bail out early for wild_read.
502 (check_mem_read_rtx): Accomodate canon_address signature change.
503 (scan_insn): Move call insn handling after note_uses.
505 2007-05-05 Ramana Radhakrishnan <ramana.r@gmail.com>
506 Serge Belyshev <belyshev@depni.sinp.msu.ru>
507 Kenneth Zadeck <zadeck@naturalbridge.com>
509 * combine.c (recog_for_combine): Keep unused notes from being
510 generated for scratch registers.
511 * config/alpha/alpha.c: Add include for df.h.
514 2007-05-01 Kenneth Zadeck <zadeck@naturalbridge.com>
516 Do not delete regnotes when recreating them.
517 * df-problems.c (df_kill_notes): Store notes into new parameters
518 rather than killing them.
519 (df_set_note): New function.
520 (df_set_unused_notes_for_mw, df_set_dead_notes_for_mw,
521 df_create_unused_note, df_ri_bb_compute): Call df_set_note to
522 create new notes.
524 2007-04-30 Seongbae Park <seongbae.park@gmail.com>
526 * df-scan.c (df_reorganize_refs_by_reg_by_insn):
527 Scan artificial defs and uses as well.
528 * passes.c (init_optimization_passes):
529 Move pass_stack_ptr_mod from after pass_inc_dec.
531 2007-04-29 Steven Bosscher <steven@gcc.gnu.org>
533 Small cleanups without any semantics changes:
534 * df-scan.c (df_ref_record): Fix small style typo.
535 * df-core.c (df_hybrid_search_forward): Cleanup redundant loads.
536 (df_hybrid_search_backward): Likewise.
537 (df_worklist_dataflow): Check DIR against DF_NONE instead of 0.
539 Small speedups:
540 * haifa-sched.c (move_block_after_check): Mark df solutions dirty
541 here, instead of...
542 (move_succs): ...here.
543 * df-core.c (df_analyze): Only verify POSTORDER_INVERTED if
544 checking is enabled.
546 Fix Java bootstrap on ia64
547 * emit-rtl.c (try_split): Unshare RTL sequences produced by splitters.
549 2007-04-27 Kenneth Zadeck <zadeck@naturalbridge.com>
551 * timevar.def (TV_DF_UR): Removed.
552 * df-scan.c (df_scan_alloc): Change pool size.
553 * df-core.c (df_finish_pass, rest_of_handle_df_initialize,
554 df_get_bb_dirty, df_verify): Merged df_ur and df_live problems
555 into df_live.
556 * global.c (compute_regsets, rest_of_handle_global_alloc): Ditto.
557 * df.h (DF_UR, DF_UR_BB_INFO, DF_UR_IN, DF_UR_OUT, df_ur,
558 df_ur_get_bb_info): Removed.
559 (df_ur_bb_info): Merged df_ur and df_live problems
560 into df_live.
561 * init-regs.c (initialize_uninitialized_regs): Changed DF_UR_IN to
562 DF_LIVE_IN.
563 * df_problems.c (df_ur_problem_data): Renamed to
564 df_live_problem_data.
565 (df_ur_set_bb_info): Renamed to df_live_set_bb_info.
566 (df_ur_free_bb_info): Renamed to df_live_free_bb_info.
567 (df_ur_alloc): Renamed to df_live_alloc.
568 (df_ur_reset): Renamed to df_live_reset.
569 (df_ur_bb_local_compute): Renamed to df_live_bb_local_compute.
570 (df_ur_local_compute): Renamed to df_live_local_compute.
571 (df_ur_init): Renamed to df_live_init.
572 (df_ur_confluence_n): Renamed to df_live_confluence_n.
573 (df_ur_transfer_function): Renamed to df_live_transfer_function.
574 (df_ur_local_finalize): Removed.
575 (df_ur_free): Renamed to df_live_free.
576 (df_ur_top_dump): Renamed to df_live_top_dump.
577 (df_ur_bottom_dump): Renamed to df_live_bottom_dump.
578 (df_ur_verify_solution_start): Renamed to
579 df_live_verify_solution_start.
580 (df_ur_verify_solution_end): Renamed to
581 df_live_verify_solution_end.
582 (problem_UR): Renamed to problem_LIVE.
583 (df_ur_add_problem): Renamed to df_live_add_problem.
584 (df_ur_verify_transfer_functions): Renamed to
585 df_live_verify_transfer_functions.
586 (df_live_set_bb_info, df_live_free_bb_info, df_live_alloc,
587 df_live_free, df_live_top_dump, df_live_bottom_dump,
588 df_live_add_problem): Deleted.
589 (df_chain_fully_remove_problem): Changed pool alloc block size.
590 * dce.c (dce_marked_bitmap_obstack): Removed.
591 (marked_insn_p, mark_insn, init_dce, end_ud_dce, fini_dce,
592 fast_dce): Changed marked to be sbitmap rather than bitmap.
593 * alloc_pool.c (create_alloc_pool, pool_alloc, pool_free): Split
594 free_list into virgin_free_list and returned_free_list.
595 * alloc_pool.h (free_list): Split into virgin_free_list and
596 returned_free_list.
597 (virgin_elts_remaining): New variable.
599 2007-04-26 Kenneth Zadeck <zadeck@naturalbridge.com>
601 * df-core.c (df_remove_problem): Allow df_ur and df_live
602 problems to be removed.
603 * global.c (compute_regsets): Remove df_ur and df_live when
604 adding df_urec.
605 (rest_of_handle_global_alloc): Add back df_ur and df_live when
606 removing df_urec.
607 * timevar.def (TV_DF_UD): Renamed to TV_DF_UR.
608 * function.c (thread_prologue_and_epilogue_insns): Removed
609 call to df_analyze.
610 * df-problems.c (problem_UR): Added remove function and renamed TV.
611 (problem_LIVE): Added remove function.
614 2007-04-26 Seongbae Park <seongbae.park@gmail.com>
616 * tree-pass.h: Declaration for new pass.
617 * passes.c (init_optimization_passes): New pass.
618 * dce.c (prescan_insns_for_dce): Pass new param "fast" through.
619 (mark_artificial_uses, mark_reg_dependencies): New functions
620 - resurrected from the old svn revision.
621 (end_ud_dce, rest_of_handle_ud_dce, gate_ud_dce): New function.
622 (pass_ud_rtl_dce): New pass.
623 (fast_dce): New parameter for prescan_insns_for_dce.
625 2007-04-24 Seongbae Park <seongbae.park@gmail.com>
627 * final.c (leaf_renumber_regs_insn): Use SET_REGNO().
628 * df-scan.c (df_insn_refs_collect): Handle non-local gotos.
629 * sparc.c: New include of df.h.
630 * dce.c (prescan_insns_for_dce): Call mark_libcall for all insns
631 with with REG_LIBCALL_ID.
633 2007-04-23 Steven Bosscher <steven@gcc.gnu.org>
634 Kenneth Zadeck <zadeck@naturalbridge.com>
636 * df-scan.c (problem_SCAN): Add time variable.
637 (df_refs_add_to_chains): Delete the refs vectors before
638 allocating new ones.
639 * df-core.c (df_analyze_problem): Push and pop problem specific
640 time vectors.
641 * timevar.def (TV_DF_SCAN, TV_DF_RU, TV_DF_RD, TV_DF_LR, TV_DF_UD,
642 TV_DF_LIVE, TV_DF_UREC, TV_DF_CHAIN, TV_DF_RI): New problem
643 specific time vars.
644 * dse.c (positions_needed): Changed to be bitmask from sbitmap.
645 (store_info.rhs): New field.
646 (free_store_info, step6): Changed positions_needed to be bitmask
647 from sbitmap.
648 (read_info.begin, read_info.end): Changed to be int.
649 (deferred_change): New struct.
650 (deferred_change_pool): New variable.
651 (step0): Initialize deferred_change_pool.
652 (canon_address): Added parameter to cselib_expand_value_rtx and
653 improved debugging.
654 (clear_rhs_from_active_local_stores, replace_read): New function.
655 (record_store, check_mem_read_rtx): Added code to invalidate
656 store_info.rhs. Changed positions_needed to be bitmask from
657 sbitmap.
658 (step1): Added code to process deferred_change_list.
659 (rest_of_handle_dse): Added deferred rescanning.
660 * df.h (df_problem.tv_id): New timevar for each problem.
661 * cselib.c (expand_loc, cselib_expand_value_rtx): Added code to
662 limit the amount of recursion allowed when expanding addresses.
663 * cselib.h (cselib_expand_value_rtx): Added max recursion
664 parameter.
665 * rtl.h (rhs_regno): Renamed tree to x.
666 * df-problems.c (df_problem problem_RU, df_problem problem_RD,
667 problem_LR, problem_UR, problem_LIVE, problem_UREC, problem_CHAIN,
668 problem_RI) Added timevar.
669 (df_live_local_finalize): Only update solution if dirty.
670 * Makefile.in (dse.o): Added dependencies.
672 2007-04-23 Ian Lance Taylor <iant@google.com>
674 * lower-subreg.c (resolve_reg_notes): Discard REG_DEAD and
675 REG_UNUSED notes for split registers.
676 (decompose_multiword_subregs): Remove life_blocks.
678 2007-04-22 Steven Bosscher <steven@gcc.gnu.org>
680 * df.h (df_bitmap_obstack): Declare.
682 * df-scan.c (df_scan_problem_data): Add new bitmap obstacks for
683 regsets and insns/notes to be rescanned.
684 (df_scan_free_internal): Free the new bitmap obstacks.
685 (df_scan_alloc): Initialize the new bitmap obstacks, and use them.
686 (df_scan_free): Set df->blocks_to_analyze to NULL after freeing it.
687 (df_insn_rescan_all): Put temporary bitmaps on df_bitmap_obstack.
688 (df_process_deferred_rescans): Likewise.
689 (df_get_call_refs): Likewise.
690 (df_update_entry_block_defs): Likewise. Put entry_block_defs on
691 the regsets bitmap obstack.
692 (df_record_exit_block_uses): Changed like df_record_exit_block_uses.
693 (df_entry_block_bitmap_verify): Put temporary bitmaps on df_bitmap_obstack.
694 (df_exit_block_bitmap_verify): Likewise.
695 (df_scan_verify): Likewise.
697 * df-core.c (df_bitmap_obstack): Declare.
698 (rest_of_handle_df_initialize): Initialize it.
699 (rest_of_handle_df_finish): Release it.
700 (df_set_blocks, df_worklist_dataflow, df_analyze,
701 df_compact_blocks): Use it.
703 * df-problems.c (df_set_seen): Use df_bitmap_obstack for seen_in_block
704 and seen_in_insn.
705 (df_ri_compute): Likewise for bitmaps allocated for the RI problem.
707 For the RU and RD problems, introduce per-problem bitmap obstacks:
708 (df_r[ud]_problem_data): Add a per-problem bitmap
709 obstack.
710 (df_r[ud]_alloc): Initialize and use them per df problem.
711 (df_r[ud]_confluence_n, df_r[ud]_transfer_function): Use them.
712 (df_r[ud]_free): Release them.
714 * dce.c (dce_marked_bitmap_obstack, dce_blocks_bitmap_obstack,
715 dce_tmp_bitmap_obstack): New bitmap obstacks.
716 (init_dce): Initialize them. Use dce_marked_bitmap_obstack for
717 the bitmap of marked insns.
718 (end_fast_dce): Renamed to...
719 (fini_dce): ...this. Release the new bitmap obstacks.
720 (dce_process_block): Allocate local_live on dce_tmp_bitmap_obstack.
721 (fast_dce): Allocate basic block bitmaps on dce_blocks_bitmap_obstack.
722 (rest_of_handle_fast_dce): Call fini_dce, and clear df_in_progress.
723 (run_fast_df_dce): Likewise.
725 2007-04-21 Andrew Pinski <andrew_pinski@playstation.sony.com>
727 * config/spu/spu.c (fsmbi_const_p): Replace flow2_completed with
728 epilogue_completed.
730 2007-04-16 Steven Bosscher <steven@gcc.gnu.org>
732 * fwprop.c (forward_propagate_into): If multiple sets
733 return.
735 2007-04-16 Kenneth Zadeck <zadeck@naturalbridge.com>
737 * df-scan.c (df_ref_create, df_reg_chain_unlink,
738 df_install_refs): Use df->analyze_subset.
739 (df_reorganize_refs_by_reg_by_reg, df_reorganize_refs_by_reg_by_insn):
740 New functions.
741 (df_reorganize_refs_by_reg): Split into
742 df_reorganize_refs_by_reg_by_reg,
743 df_reorganize_refs_by_reg_by_insn.
744 (df_add_refs_to_table): Do not add hardware_regs if not asked for.
745 (df_reorganize_refs_by_insn): Move call to count_refs.
746 (df_maybe_reorganize_def_refs, df_maybe_reorganize_use_refs):
747 Remove code to modify df->total_size.
748 * df-core.c (df_set_blocks): Set df->analyze_subset.
749 (df_finish_pass): Clear df->analyze->subset.
750 (df_analyze): Use df->analyze_subset.
751 (df_dump_start): Remove total_size from dump.
752 * df.h (DF_RI_NO_UPDATE, DF_DEFS_TOTAL_SIZE, DF_USES_TOTAL_SIZE):
753 Removed.
754 (df.analyze_subset): New field. * df-problems.c (df_ri_alloc,
755 df_ri_compute): Removed DF_RI_NO_UPDATE.
758 2007-04-12 Steven Bosscher <steven@gcc.gnu.org>
759 Kenneth Zadeck <zadeck@naturalbridge.com>
761 * cse.c (cse_insn): Do not emit barriers.
762 * dse.c (store_info.address): Renamed to mem_addr.
763 (canon_address): Removed address_out parameter.
764 (record_store): Removed address var and compute mem and
765 mem_address differently.
766 (check_mem_read_rtx): Removed address and changed parameters to
767 canon_true_dependence.
768 * cselib.c (cselib_expand_value_rtx): Do not translate
769 FRAME_POINTER_REGNUM and HARD_FRAME_POINTER_REGNUM.
771 2007-04-11 Steven Bosscher <steven@gcc.gnu.org>
773 * gcse.c (hash_scan_set): Make sure that INSN has only one
774 SET in its PATTERN before making SRC anticipatable.
775 * cfglayout.c (fixup_reorder_chain): Fix merge error, don't
776 call compact_blocks here.
778 2007-04-09 Kenneth Zadeck <zadeck@naturalbridge.com>
780 * df-core.c (add_problem): Keep the problem sorted in
781 problems_in_order.
782 * global.c (compute_regsets): Recompute register information.
784 2007-04-08 Kenneth Zadeck <zadeck@naturalbridge.com>
786 * optabs.h (maybe_encapsulate_block): Made public.
787 * optabs.c (maybe_encapsulate_block): Ditto.
788 (emit_no_conflict_block, emit_libcall_block): Remove
789 REG_LIBCALL_ID when deleteing REG_RETVAL and REG_LIBCALL
790 notes.
791 * reload1.c (reload): Ditto.
792 * config/rs6000/rs6000.c (rs6000_legitimize_tls_address):
793 Use maybe_encapsulate_block to add libcall notes.
795 2007-04-07 Kenneth Zadeck <zadeck@naturalbridge.com>
797 * dse.c (clear_alias_set_lookup): New function.
798 (store_info.is_set): New field.
799 (replace_inc_dec, delete_dead_store_insn): Added more ifdefs so
800 dse could be tested on mainline.
801 (canon_address): Moved lookup of alias_set info to subroutine and
802 added better logging. Added code to detect if address contains an
803 AND and if so, escape.
804 (record_store, check_mem_read_rtx): White space cleanup. Added
805 code to skip store_info's for clobbers when comparing with
806 previous insn stores. We also mark store_info's as to whether
807 they are set or clobber based.
808 (scan_insn): Only add insn to active_stores_list if it has exactly
809 one store.
810 (step1): Add code to remove a store to the frame that goes dead at
811 the end of a function if there is a non overlaping block mode read
812 from the stack. The global algorithm cannot do this because it
813 takes a more conservative view of block mode reads.
814 (dse_confluence_0, dse_confluence_n, dse_transfer_function,
815 step5_spill, pass_rtl_dse2): Add ifdefs so this can be tested on
816 mainline.
817 (step5_nospill): Ignore clobbers and only look at the set to
818 decide if an insn can be deleted.
819 * init_regs.c: Whitespace.
820 * cselib.c (cselib_expand_value_rtx): Fixed comment and changed to
821 use proper macro.
823 2007-04-06 Paolo Bonzini <bonzini@gnu.org>
825 * bitmap.c (bitmap_set_range): New.
826 (bitmap_clear_range): Small optimization.
827 * bitmap.h (bitmap_set_range): New.
828 * df-problems.c (df_ref_bitmap): Remove.
829 (struct df_rd_problem_data, df_ru_problem_data): Remove related
830 data structures.
831 (df_ru_alloc, df_rd_alloc): Don't allocate them.
832 (df_ru_free, df_rd_free): Don't free them.
833 (df_ru_bb_local_compute_process_def, df_ru_local_compute,
834 df_rd_bb_local_compute_process_def, df_rd_local_compute):
835 Use bitmap_set_range and bitmap_clear_range instead of df_ref_bitmap.
837 2007-04-05 Kenneth Zadeck <zadeck@naturalbridge.com>
839 * sbitmap.c (sbitmap_empty_p): New function.
840 * sbitmap.h (sbitmap_empty_p): New function.
841 * dbgcnt.def (dse): New counter and sorted the others.
842 * df-core.c (df_worklist_dataflow): Made init_fun optional.
843 * cse.c (cse_main): Do dce at start of pass.
844 * timevar.def (TV_DSE3): Deleted.
845 * dse.c: New pass.
846 * dse.h: New file for dse pass.
847 * gcse.c (gcse_main): Set up the register info.
848 * alias.c (clear_reg_alias_info): Removed dead function.
849 * rtl.h (clear_reg_alias_info): Removed dead function.
850 * cselib.c (cselib_discard_hook): Added cselib val parameter.
851 (discard_useless_values): Added hook call here.
852 (remove_useless_values): Removed hook call from here.
853 (expand_loc, cselib_expand_value_rtx): New function.
854 (cselib_finish): Clear hook.
855 * cselib.h (cselib_discard_hook): Added cselib val parameter.
856 (expand_loc, cselib_expand_value_rtx): New function.
857 * common.opt (flag_flow_dce, new-dce): Removed flag.
858 (flag_dce, flag_dse): New flags.
859 * Makefile.in (dse.o): New pass.
860 * passes.c (init_iptimization_passes): Removed dse after combine.
861 Renamed dse3 to dse2.
862 * dce.c (delete_unmarked_insns): Renamed new_dce to dce.
863 (end_dce, mark_artificial_uses, mark_reg_dependencies,
864 invariant_store_base_eq, invariant_store_base_hash, value_store_base_eq,
865 value_store_base_hash, store_base_del, rs_init, rs_confluence,
866 rs_transfer_function, init_invariant_store_group,
867 init_value_store_group, empty_store_group, end_store_group,
868 init_rs_dflow, end_rs_dflow, init_unmarked_stores,
869 end_unmarked_stores, init_dse, end_dse, dump_stores,
870 split_address, add_store_offset, record_store, record_stores,
871 store_offset_compare, store_base_local,
872 invariant_store_base_local, value_store_base_local,
873 value_store_base_useless, remove_useless_values,
874 store_base_global, finish_max_in_luid,
875 calculate_reaching_stores, frame_stores_escape_p,
876 store_base_prune_needed, mark_escaping_stores,
877 insn_might_read_mem_rtx, insn_might_read_mem_use,
878 insn_might_read_mem_p, mark_dependent_stores,
879 prescan_insns_for_dse, rest_of_handle_dse, gate_dse): Deleted functions
880 as part of new dse pass in separate file.
881 * reload1.c (alter_reg): Added calls to register spill slots
882 with dse.
884 2007-04-05 Peter Bergner <bergner@vnet.ibm.com>
886 * config/rs6000/rs6000.c (rs6000_legitimate_address): Disallow
887 PRE_MODIFY for TDmode.
889 2007-04-04 Kenneth Zadeck <zadeck@naturalbridge.com>
891 * cfg.c (dump_reg_info): Added check to lower max if new regs
892 were added.
893 * init-regs.c (initialize_uninitialized_regs): Changed code to
894 insert move right before uninitized insn.
896 2007-04-03 Paolo Bonzini <bonzini@gnu.org>
898 * df-problems.c (df_chain_create_bb): Plug leak.
900 * df-problems.c (df_chain_alloc): Fix typo.
902 2007-04-03 Paolo Bonzini <bonzini@gnu.org>
904 * dce.c (dce_process_block): Copy into DF_LR_IN.
905 * df-problems.c (df_lr_free_bb_info): Support bb_info->in
906 being the same bitmap as bb_info->top.
907 (df_lr_alloc): The adef and ause fields must be either
908 both NULL or both non-NULL. Initialize bb_info->top
909 to bb_info->in.
910 (df_lr_bb_local_compute): Allocate adef, ause, top together.
911 (df_lr_transfer_function): Simplify according to above
912 assumptions.
913 (df_lr_free): Zero out bb_info->top instead of freeing it
914 if it is the same as bb_info->in.
916 2007-04-01 Kenneth Zadeck <zadeck@naturalbridge.com>
918 * config/ia64/ia64.c (emit_predicate_relation_info): Changed
919 DF_LIVE_IN to df_get_live_in.
921 2007-03-29 Paolo Bonzini <bonzini@gnu.org>
923 * bitmap.c (bitmap_elt_copy, bitmap_elt_ior): New.
924 (bitmap_ior, bitmap_ior_into): Use them.
925 (bitmap_and_compl): Use them, return whether DST changed.
926 (bitmap_ior_and_compl): Rewrite.
927 * bitmap.h (bitmap_and_compl): Return a bool.
929 * Makefile.in (alias.o): Fix dependencies.
930 * alias.c (find_base_value, init_alias_analysis): Use
931 DF_REG_DEF_COUNT. Include df.h.
932 * cfg.c (dump_reg_info): Don't fail if reg_info not initialized.
933 * cse.c (cse_main): Assume dataflow initialized. Call reg_scan.
934 * gcse.c (gcse_main): Call df_analyze, remove call to reg_scan.
935 * local-alloc.c (rest_of_handle_local_alloc): Call allocate_reg_info
936 earlier.
937 * passes.c (init_optimization_passes): Initialize dataflow before CSE.
939 * global.c (n_reg_sets): Remove.
940 (reg_sets): Change to a VEC.
941 (mark_reg_store): Push onto reg_sets.
942 (global_conflicts): Assert reg_sets is empty, pop values out of it.
943 Don't allocate it nor free it here.
944 (global_alloc): Allocate reg_sets if necessary.
946 * see.c (rest_of_handle_see): Don't call reg_scan.
947 * tracer.c (rest_of_handle_tracer): Likewise.
948 * cfgcleanup.c (rest_of_handle_jump2): Likewise.
949 * bb-reorder.c (fix_edges_for_rarely_executed_code): Likewise.
950 * loop-init.c (rtl_loop_done): Likewise.
951 * ifcvt.c (rest_of_handle_if_conversion): Likewise.
952 * mode-switching.c (optimize_mode_switching): Remove useless
953 allocate_reg_info.
954 * lower-subreg.c (decompose_register): Don't call clear_reg_info_regno.
955 (decompose_multiword_subregs): Don't call reg_scan_update.
956 * web.c (rest_of_handle_web): Delete.
957 (pass_web): Use web_main as pass routine.
959 * regclass.c (max_parallel, max_set_parallel): Remove.
960 (reg_scan): Don't set them.
961 (reg_scan_update): Delete.
962 (reg_scan_mark_refs): Remove last parameter.
964 * rtl.h (max_parallel): Remove.
966 2007-03-29 Paolo Bonzini <bonzini@gnu.org>
968 * df-core.c (pass_df_finish): Restore.
969 (pass_df_finish_opt, pass_df_finish_no_opt): Remove.
970 * tree-pass.h (pass_df_finish): Restore.
971 (pass_df_finish_opt, pass_df_finish_no_opt): Remove.
972 * passes.c (init_optimizations_passes): Remove pass_df_finish_no_opt.
973 Rename pass_df_finish_opt to pass_df_finish.
974 * reg-stack.c: Mostly evert previous commit.
976 2007-03-28 Kenneth Zadeck <zadeck@naturalbridge.com>
978 * tree-pass.h (pass_df_initialize, pass_df_finish): Deleted.
979 (pass_df_initialize_opt, pass_df_initialize_no_opt,
980 pass_stack_regs_run, pass_df_finish_opt, pass_df_finish_no_opt):
981 Added.
982 * df-core.c (df_finish_pass): Made ur and live problems condition
983 on optimization.
984 (pass_df_initialize): Renamed to pass_df_initialize_opt.
985 (pass_df_initialize_no_opt): New pass.
986 (gate_opt, gate_no_opt): New functions.
987 (pass_df_finish): Renamed to pass_df_finish_opt.
988 (pass_df_finish_no_opt): New pass.
989 * mode-switching.c (optimize_mode_switching): Changed references
990 of DF_LIVE_IN to df_get_live_in.
991 * global.c (compute_regsets): Only add urec problem when
992 optimizing.
993 * function.c (regno_clobbered_at_setjmp): Changed references
994 of DF_LIVE_OUT to df_get_live_out.
995 * regclass.c (regclass_init): Only call df_compute_regs_ever_live
996 if optimizing.
997 * stack-ptr-mod.c (notice_stack_pointer_modification): Only call
998 df_update_exit_block_uses if optimizing.
999 * df-problems.c (df_get_live_in, df_get_live_out): Return df_live
1000 sets if they are there.
1001 * reg-stack.c (rest_of_handle_stack_regs_run):
1002 Added new pass that just runs subpasses.
1003 * passes.c (init_optimization_passes): Added passes to turn on df
1004 at only some parts of the compilation for -O0. Moved
1005 pass_split_before_regstack and pass_stack_regs into a subpass of
1006 the stack regs pass.
1008 2007-03-28 Paolo Bonzini <bonzini@gnu.org>
1010 * df.h (df_ru_get_bb_info, df_rd_get_bb_info, df_lr_get_bb_info,
1011 df_ur_get_bb_info, df_live_get_bb_info, df_urec_get_bb_info):
1012 New inlines.
1013 * df-scan.c (df_scan_get_bb_info, df_get_artificial_uses,
1014 df_get_artificial_defs): Delete.
1015 * df-problems.c (df_ru_get_bb_info, df_rd_get_bb_info,
1016 df_lr_get_bb_info, df_ur_get_bb_info, df_live_get_bb_info,
1017 df_urec_get_bb_info): Delete.
1019 2007-03-20 Seongbae Park <seongbae.park@gmail.com>
1021 * combine.c (setup_incoming_promotions): Fix a bad merge
1022 - use the argument FIRST instead of recomputing it.
1024 2007-03-16 Paolo Bonzini <bonzini@gnu.org>
1026 * tracer.c (tracer): Work around pr19340.c failure by cleaning up
1027 CFG outside cfglayout mode. Proper fix will be brought in by
1028 next mainline merge.
1030 2007-03-16 Paolo Bonzini <bonzini@gnu.org>
1032 PR rtl-optimization/31025
1033 * df.h (df_get_live_out): New prototype.
1034 * df-problems.c (df_get_live_out): New.
1035 (df_ri_bb_compute): Use it.
1037 2007-03-13 Seongbae Park <seongbae.park@gmail.com>
1039 * tree-pass.h (pass_subregs_of_mode_finish): New pass declaration.
1040 * regclass.c (record_subregs_of_mode): Made static, and
1041 moved before init_subregs_of_mode to compile.
1042 (cannot_change_mode_set_regs, invalid_mode_change_p): Added assertion.
1043 (finish_subregs_of_mode): New function.
1044 (pass_subregs_of_mode_finish): New pass.
1045 * rtl.h (record_subregs_of_mode): Removed.
1046 * combine.c (gen_lowpart_for_combine): Removed calls to
1047 record_subregs_of_mode.
1048 * passes.c (init_optimization_passes): Moved pass_subregs_of_mode_init
1049 just before local_alloc. New pass pass_subregs_of_mode_finish
1050 after global_alloc.
1052 2007-03-09 Richard Earnshaw <rearnsha@arm.com>
1054 * arm.c: Include df.h.
1056 2007-03-06 Steven Bosscher <steven@gcc.gnu.org>
1058 * fwprop.c (try_fwprop_subst): Remove redundant df_notes_rescan.
1059 * see.c (rest_of_handle_see): Run a fast dce. Don't run cleanup_cfg.
1060 * tracer.c (tracer): Clean up the cfg when still in cfglayout mode.
1061 * postreload-gcse.c (rest_of_handle_gcse2): Don't run
1062 delete_trivially_dead_insns, this pass cleans up after itself already.
1063 * df-scan.c (df_insn_rescan): Fix typo.
1064 * cse.c (rest_of_handle_cse): Don't use CLEANUP_EXPENSIVE.
1065 (rest_of_handle_cse2): Likewise. Don't call delete_dead_jumptables.
1066 * web.c (rest_of_handle_web): Don't run delete_trivially_dead_insns.
1067 Also don't clean up the CFG, this pass does not transform the CFG.
1068 * loop-init.c (rtl_loop_done): Don't run delete_trivially_dead_insns.
1069 Don't use CLEANUP_EXPENSIVE.
1070 * ifcvt.c (rest_of_handle_if_conversion): Don't use CLEANUP_EXPENSIVE.
1071 * gcse.c (rest_of_handle_jump_bypass): Only remove unreachable basic
1072 blocks before the pass. No need for a reg_scan. Rebuild jump labels
1073 after delete_trivially_dead_insns. Don't use CLEANUP_EXPENSIVE.
1074 (rest_of_handle_gcse): Rebuild jump labels after
1075 delete_trivially_dead_insns. Don't call delete_dead_jumptables.
1076 Don't use CLEANUP_EXPENSIVE.
1077 * cfgcleanup.c (cleanup_cfg): Move delete_dead_jumptables call out of
1078 the loop.
1079 * combine.c (rest_of_handle_combine): Account cleanup_cfg to TV_JUMP.
1080 Don't use CLEANUP_EXPENSIVE. Don't run delete_trivially_dead_insns.
1081 * bb-reorder.c (rest_of_handle_reorder_blocks): Don't use
1082 CLEANUP_EXPENSIVE. Resurrect CLEANUP_CROSSJUMP here.
1084 2007-03-06 Paolo Bonzini <bonzini@gnu.org>
1086 * cse.c (validate_canon_reg): Don't do anything if *XLOC is NULL.
1087 Assert it is only called with insn != 0 and it never resets
1088 something non-NULL to NULL. Always use validate_change.
1089 (cse_insn): Always call canon_reg with an INSN except when it
1090 is used on a REG. When processing notes, first canonicalize,
1091 then fold, and call df_notes_rescan.
1092 (cse_process_notes): Rename to cse_process_notes_1, add CHANGED
1093 parameter.
1094 (cse_process_notes_1): Wrapper around cse_process_notes to set
1095 the CHANGED parameter.
1096 (cse_extended_basic_block): Adjust call to cse_process_notes
1097 and use result to call df_notes_rescan.
1098 (cse_main): Set deferred insn rescanning flag, don't rescan on exit.
1099 (pass_cse2): Add TODO_df_finish.
1100 * gcse.c (pass_gcse): Likewise.
1102 2007-03-04 Roman Zippel <zippel@linux-m68k.org>
1104 * regclass.c (scan_one_insn): Call df_insn_rescan after breaking
1105 out constant parameter.
1107 2007-03-04 Roman Zippel <zippel@linux-m68k.org>
1109 * df-scan.c (df_grow_ref_info): Also add bitmap_addend to size.
1111 2007-02-25 Ulrich Weigand <uweigand@de.ibm.com>
1113 Backport from mainline:
1114 * reload.c (find_reloads_address_1): Handle PLUS expressions resulting
1115 from register elimination as PRE_MODIFY / POST_MODIFY increments.
1116 Do not attempt to handle MEM inside auto-inc expressions.
1117 * reload1.c (eliminate_regs_1): Do not attempt to handle elimination
1118 of a register modified by an auto-inc expression. However, do handle
1119 elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
1120 (elimination_effects): Prohibit elimination of a register modified
1121 by an auto-inc expression. Disable register elimination rules whose
1122 target register is modified by an auto-inc expression with variable
1123 increment.
1125 2007-02-25 Ulrich Weigand <uweigand@de.ibm.com>
1127 Revert:
1128 2006-07-01 Daniel Berlin <dberlin@dberlin.org>
1129 David Edelsohn <edelsohn@gnu.org>
1130 Kenneth Zadeck <zadeck@naturalbridge.com>
1131 reload1.c (eliminate_regs_1, elimination_effects): Added cases for
1132 PRE/POST_MODIFY.
1134 2007-02-22 Seongbae Park <seongbae.park@gmail.com>
1136 * global.c (reg_becomes_live): Mark registers not live
1137 after CLOBBER.
1139 2007-02-22 Paolo Bonzini <bonzini@gnu.org>
1141 * combine.c (set_nonzero_bits_and_sign_copies, reg_nonzero_bits_for_combine,
1142 reg_num_sign_bit_copies_for_combine, get_last_value): Look at DF_LR to
1143 check if a register is uninitialized.
1145 2007-02-21 Paolo Bonzini <bonzini@gnu.org>
1147 * combine.c (uid_cuid, max_uid_cuid): Remove.
1148 (INSN_CUID): Replace throughout with DF_INSN_LUID.
1149 (last_call_cuid): Rename to last_call_luid.
1150 (subst_low_cuid): Rename to subst_low_luid.
1151 (last_insn_cost): Rename to max_uid_known.
1152 (uid_log_links): New.
1153 (INSN_COST, LOG_LINKS): New.
1154 (combine_validate_cost): Use INSN_COST instead of accessing
1155 uid_insn_cost.
1156 (create_log_links, clear_log_links): Move before combine_instructions.
1157 (combine_instructions): Don't compute cuids. Allocate uid_log_links.
1158 Call create_log_links and clear_log_links here. Only initialize
1159 data structures for insns within a basic block. Use INSN_COST
1160 instead of accessing uid_insn_cost. Reset last_call_luid and
1161 mem_last_set once for every basic block. Update label_tick on every
1162 basic block, reset label_tick_ebb_start on every label.
1163 (can_combine_p, try_combine, reg_nonzero_bits_for_combine,
1164 reg_num_sign_bit_copies_for_combine, record_value_for_reg,
1165 record_dead_and_set_regs_1, record_dead_and_set_regs,
1166 get_last_value_validate, get_last_value, use_crosses_set_p,
1167 move_deaths, distribute_notes, distribute_links): Rename stuff
1168 as indicated above. In tests for LUIDs, check that we refer to
1169 the same label_tick too. In tests for label ticks, check that
1170 they are > label_tick_ebb_start.
1171 (rest_of_handle_combine): Don't create/clear loglinks here.
1173 * gengtype.c (adjust_field_rtx_def): Adjust index of JUMP_LABEL.
1174 * caller-save.c (init_caller_save): Adjust creation of INSNs.
1175 * rtl.def (CODE_LABEL): Adjust comment.
1176 (INSN, JUMP_INSN, CALL_INSN, BARRIER): Remove penultimate field.
1177 * emit-rtl.c (unshare_all_rtl_again, verify_rtl_sharing,
1178 unshare_all_rtl_in_chain, make_insn_raw, make_jump_insn_raw,
1179 make_call_insn_raw): Remove references to LOG_LINKS.
1180 * rtl.h (LOG_LINKS): Remove.
1181 (REG_NOTES, CALL_INSN_FUNCTION_USAGE, JUMP_LABEL): Shift index
1182 down by one.
1184 * regs.h (struct reg_info_def): Remove first_uid and last_uid.
1185 (REGNO_FIRST_UID, REGNO_LAST_UID): Remove.
1186 * cse.c (cse_basic_block_start, cse_basic_block_end, uid_cuid,
1187 max_uid, INSN_CUID): Remove.
1188 (struct cse_basic_block_data): Remove low_cuid and high_cuid.
1189 (reg_used_in_multiple_bb, reg_used_in_bb): New.
1190 (make_regs_eqv): Test reg_used_in_multiple_bb instead of cuids.
1191 (cse_prescan_path): Remove low_cuid and high_cuid.
1192 (mark_reg_use_bb): New.
1193 (cse_main): Replace computation of cuids with initialization of
1194 reg_used_in_multiple_bb. Remove references to deleted variables.
1195 * regmove.c (copy_src_to_dest): Don't update REGNO_FIRST_UID and
1196 REGNO_LAST_UID.
1197 * regclass.c (reg_scan_mark_refs): Remove penultimate argument.
1198 Don't track REGNO_FIRST_UID and REGNO_LAST_UID.
1199 (reg_scan, reg_scan_update): Remove penultimate argument to
1200 reg_scan_mark_refs.
1202 2007-02-20 Seongbae Park <seongbae.park@gmail.com>
1204 * sched-ebb.c (schedule_ebbs): Clear DF_LR_RUN_DCE flag
1205 after df_analyze.
1207 2007-02-20 Kenneth Zadeck <zadeck@naturalbridge.com>
1209 * fwprop.c (forward_propagate_into): Removed call to
1210 df_recompute_luids.
1211 * see.c (see_free_data_structures): Ditto.
1212 * loop-iv.c (iv_analysis_loop_init): Ditto.
1213 * dce.c (prescan_insns_for_dse): Ditto.
1214 * auto-inc-dec.c (merge_in_block): Moved call to
1215 df_recompute_luids so that it only happens on subsequent passes of
1216 block.
1217 * df-scan.c (df_grow_insn_info): Made public.
1218 * df.h (df_grow_insn_info): Made public.
1219 * df-core.c: Fixed comments.
1220 * df-problems.c (df_ur_bb_local_compute): Reversed order of
1221 processing insns. Removed usage of seen_in_block and
1222 seen_in_insn. Update luid.
1223 (df_ur_local_compute, df_ur_verify_transfer_functions): Added call
1224 to df_grow_insn_info and deleted calls to df_set_seen, df_unset_seen.
1226 2007-02-16 Paolo Bonzini <bonzini@gnu.org>
1228 * combine.c (INSN_CUID): Always look up uid_cuid.
1229 (insn_cuid): Delete.
1230 * sched-deps.c (sched_analyze): Don't free LOG_LINKS here.
1231 * sched-int.h (struct dep_list): Don't mention LOG_LINKS in comment.
1233 2007-02-15 Paolo Bonzini <bonzini@gnu.org>
1235 * config/sh/sh.c (sh_reorg): Don't look at LOG_LINKS.
1237 2007-02-15 Paolo Bonzini <bonzini@gnu.org>
1239 * combine.c (find_single_use): Don't check for reload flags.
1241 2007-02-15 Paolo Bonzini <bonzini@gnu.org>
1243 Merge from mainline.
1245 2007-02-15 Paolo Bonzini <bonzini@gnu.org>
1247 * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1249 2007-02-13 Seongbae Park <seongbae.park@gmail.com>
1251 Merge from mainline.
1253 2007-02-13 Seongbae Park <seongbae.park@gmail.com>
1255 * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1256 Ensure dst->current is valid.
1258 2007-02-13 Kenneth Zadeck <zadeck@naturalbridge.com>
1260 * lower-subregs.c (resolve_reg_notes): Added code to call
1261 df_notes_rescan when REG_EQUAL notes are changed.
1263 2007-02-12 Kenneth Zadeck <zadeck@naturalbridge.com>
1265 * global.c (compute_regsets): Removed first two parameters.
1266 Converted asm_clobbered to regs_asm_clobbered.
1267 (global_alloc): Removed bad merged call to make_accurate_live_analysis.
1268 (global_alloc, rest_of_handle_global_alloc): Removed first two
1269 parameters from compute_regsets.
1271 2007-02-06 Kenneth Zadeck <zadeck@naturalbridge.com>
1273 * ifcvt.c (noce_process_if_block): Removed unnecessary insn deletes.
1274 (dead_or_predictable): Removed incorrect bit vector operation.
1275 * lower-subregs (simple_move_operand, resolve_clobber): Change from mainline.
1276 (resolve_clobber): Added df_insn_rescan of clobber.
1277 (decompose_multiword_subregs): Added df setup and removed debugging.
1278 (pass_lower_subreg2): Added df cleanup.
1279 * Makefile.in (lower-subregs.o): Added df.h dependence.
1281 2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org>
1283 * config/sh/sh.c (sh_expand_prologue): Remove unneeded brackets.
1284 (sh_expand_epilogue): Add blockage insn when not
1285 frame_pointer_needed.
1286 (sh_output_mi_thunk): Don't use flow analysis here.
1287 * config/sh/sh.md (UNSPEC_EH_RETURN): Remove.
1288 (UNSPECV_EH_RETURN): New macro.
1289 (sibcall_valuei): New.
1290 (sibcall_valuei_pcrel, sibcall_value_pcrel): Likewise.
1291 (sibcall_value_compact, sibcall_value_media): Likewise.
1292 (sibcall_value): Use new sibcall_value* patterns.
1293 (eh_set_ra_si): Use unspec_volatile and UNSPECV_EH_RETURN.
1294 (eh_set_ra_di, eh_set_ra_di+1): Likewise.
1296 2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org>
1298 * mode-switching.c (create_pre_exit): Skip CLOBBER of pseudo
1299 register for the result when not optimizing.
1300 (optimize_mode_switching): Move df_ri_add_problem and df_analyze
1301 calls after create_pre_exit call.
1303 2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org>
1305 * modulo-sched.c (sms_schedule): Call df_ri_add_problem
1306 with DF_RI_LIFE.
1308 2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org>
1310 * df-scan.c (df_get_entry_block_def_set): Use struct_value_rtx
1311 hook instead of TARGET_STRUCT_VALUE_RTX.
1313 2007-02-03 Kaz Kojima <kkojima@gcc.gnu.org>
1315 * passes.c (init_optimization_passes): Move df_finish after
1316 delay_slots.
1318 2007-01-02 Kenneth Zadeck <zadeck@naturalbridge.com>
1320 * optabs.c (emit_no_conflict_block): Removed redundant code to
1321 number libcalls.
1322 * tree-pass.h (pass_initialize_subregs): Renamed to
1323 pass_initialize_regs.
1324 * passes.c (init_optimization_passes): Ditto.
1325 * builtins.c (expand_builtin_setjmp_receiver): Changed
1326 gen_rtx_ASM_INPUT to gen_blockage.
1327 * function.c (expand_function_end): Ditto.
1328 * stmt.c (gen_non_local_got_receiver): Ditto.
1329 * config/i386.md (blockage): Don't take an operand.
1330 (prologue_use): New.
1331 * config/i386.c (ix86_expand_prologue): Don't build a blockage
1332 insn with an operand. If the PIC reg is used, use a prologue_use
1333 insn to protect it from being removed.
1334 * df-scan.c (df_get_entry_block_def_set): Generate ref for
1335 INCOMING_RETURN_ADDR_RTX after reload_completed.
1336 * df-core.c (df_ref_debug): Fixed formatting.
1337 * init-regs.c: Renamed from subregs_init.c and changed to
1338 initialize all fully uninitialized registers.
1339 * bt-load.c (compute_defs_uses_and_gen): Changed check for
1340 ASM_INPUT to UNSPEC_VOLATILE.
1341 * df-problems.c (df_set_unused_notes_for_mw,
1342 df_set_dead_notes_for_mw, df_ri_bb_compute): Cleaned up reg_notes
1343 debugging info.
1344 (df_set_dead_notes_for_mw): Added do_not_gen to test of all notes
1345 dead.
1346 * Makefile.in (subregs-init.*): Renamed to init-regs.*.
1347 * config/arm/arm.c (arm_expand_prologue, thumb_expand_prologue):
1348 Removed code to generate explicit uses of LR_REGNUM from prologue.
1349 * config/arm/arm.h (EPILOGUE_USES): Made LR_REGNUM unconditionally
1350 added.
1351 * dce.c (deletable_insn_p): Made clobbers always live for use-def
1352 based dce.
1353 (prescan_insns_for_dce, prescan_insns_for_dse): Added fast
1354 parameter to deletable_insn_p.
1355 (run_fast_df_dce): Temporarily turn off DF_DEFER_INSN_RESCAN
1356 during this subphase.
1359 2007-02-01 Seongbae Park <seongbae.park@gmail.com>
1361 * df-scan.c (df_sort_and_compress_refs):
1362 Style fix.
1363 (df_sort_and_compress_mws):
1364 Style fix. Fix missing & in parameters for df_mw_compare call.
1366 2007-02-01 Seongbae Park <seongbae.park@gmail.com>
1368 * df-scan.c (df_swap_refs): New function.
1369 (df_sort_and_compress_refs, df_sort_and_compress_mws):
1370 Avoid qsort call overhead if the array has only 2 elements
1371 or if it's already sorted.
1373 2007-01-17 Eric Christopher <echristo@apple.com>
1375 * config/mips/mips.c (mips_output_function_epilogue): Use SET_REGNO
1376 instead of REGNO.
1377 (mips_output_mi_thunk): Ditto.
1379 2007-01-17 Eric Christopher <echristo@apple.com>
1381 * reorg.c (fill_simple_delay_slots): Fix prototype.
1383 2007-01-15 Andreas Krebbel <krebbel1@de.ibm.com>
1385 * regmove.c: (fixup_match_1): Call df_notes_rescan after
1386 changing insn notes.
1388 2007-01-15 Andreas Krebbel <krebbel1@de.ibm.com>
1390 * config/s390/s390.c: Include df.h.
1391 (s390_emit_prologue): Call df_insn_rescan when annotating constant
1392 pool references.
1394 2007-01-15 Andreas Krebbel <krebbel1@de.ibm.com>
1396 * rtl.h (split_all_insns_noflow): Add prototype.
1397 * recog.c (split_all_insns_noflow): Remove static.
1399 2007-01-14 Kenneth Zadeck <zadeck@naturalbridge.com>
1400 * fwprop.c (update_df): Only rescan if insn has really changed.
1401 (try_fwprop_subst): Removed call to df_set_bb_dirty.
1402 (fwprop_init): Added new parameter to df_maybe_reorganize_use_refs.
1403 * df-scan.c (df_scan_alloc): Removed calls to df_grow_ref_info.
1404 (df_scan_blocks, df_ref_create, df_reg_chain_unlink,
1405 df_maybe_reorganize_use_refs, df_maybe_reorganize_def_refs,
1406 df_install_ref, df_install_refs, df_refs_add_to_chains): Changed
1407 to support new modes adding refs to the df.ref_info.refs.
1408 (df_reg_chain_unlink, df_install_ref, df_ref_create_structure,
1409 df_hard_reg_used_p): Changed DF_REGS_EVER_LIVE to
1410 DF_HARD_REG_LIVE.
1411 (df_ref_remove, df_ref_create): Added call to dirty the block when
1412 a ref is changed manually.
1413 (df_insn_rescan, df_notes_rescan): Added bb param to
1414 df_refs_add_to_chains.
1415 (df_reorganize_refs): Renamed to df_reorganize_refs_by_reg.
1416 (df_count_refs, df_add_refs_to_table,
1417 df_reorganize_refs_by_insn_bb, df_reorganize_refs_by_insn,
1418 df_hard_reg_used_count): New functions.
1419 (df_drop_organized_tables): Removed.
1420 * df_core.c (df_set_blocks, df_finish_pass): Changed
1421 to support new modes adding refs to the df.ref_info.refs.
1422 * df.h (df_ref_flags.DF_REGS_EVER_LIVE): Renamed to
1423 DF_HARD_REG_LIVE.
1424 (df_ref_order): New Enum.
1425 (df_ref_info.{refs_organized_alone, refs_organized_with_eq_uses,
1426 add_refs_inline}): Replaced with df_ref_info.ref_order.
1427 (DF_REG_EVER_LIVE_P): Removed macro.
1428 * df-problems.c (df_ru_local_compute): Added parm to
1429 df_maybe_reorganize_use_refs.
1430 (df_rd_local_compute): Added parm to
1431 df_maybe_reorganize_def_refs.
1433 2007-01-12 Kenneth Zadeck <zadeck@naturalbridge.com>
1434 * df-scan.c (df_collection_rec): New structure.
1435 (df_chains): Deleted structure.
1436 (DEBUG_DF_RESCAN): Removed conditional compilation of rescanning.
1437 (df_scan_start_block): Added ifdefed out code that prints the
1438 scanning of insns.
1440 (df_ref_create, df_get_artificial_defs, df_get_artificial_uses,
1441 df_reg_chain_unlink, df_ref_remove, df_ref_chain_delete_du_chain,
1442 df_ref_chain_delete, df_mw_hardreg_chain_delete, df_insn_rescan,
1443 df_ref_chain_change_bb, df_insn_change_bb,
1444 df_ref_change_reg_with_loc_1, df_mw_hardreg_chain_delete_eq_uses,
1445 df_notes_rescan, df_refs_add_to_chains, df_ref_create_structure,
1446 df_ref_record, df_def_record_1, df_defs_record, df_uses_record,
1447 df_get_conditional_uses, df_insn_refs_collect, df_recompute_luids,
1448 df_bb_refs_collect, df_entry_block_defs_collect,
1449 df_update_entry_block_defs, df_exit_block_uses_collect,
1450 df_record_exit_block_uses, df_update_exit_block_uses,
1451 df_compute_regs_ever_live, df_reg_chain_mark,
1452 df_reg_chain_verify_unmarked, df_insn_refs_verify, df_bb_verify,
1453 df_scan_verify): Changed to use vector rep for refs.
1454 (df_get_call_refs) Ditto plus fixed bug where clobber ref was
1455 generated for same ref as result of call.
1456 (df_reg_chain_create, df_ref_unlink, df_ref_chain_find_ref,
1457 df_ref_chain_find_ref_by_regno, df_ref_chain_append,
1458 df_ref_find_chains, df_ref_add_to_chains, df_insn_refs_record,
1459 df_ref_chain_verify_and_unmark, df_ref_chain_free, df_ref_verify,
1460 df_mw_hardreg_find_hardreg): Deleted function.
1461 (df_ref_compress_rec, df_free_collection_rec, df_ref_compare,
1462 df_sort_and_compress_refs, df_mw_compare, df_sort_and_compress_mws
1463 df_canonize_collection_rec, df_install_ref, df_install_refs,
1464 df_refs_verify, df_mws_verify): New function.
1465 (df_ref_is_equal): Renamed to df_ref_equal_p and changed to use
1466 vector rep for refs.
1467 (df_mw_is_equal): Renamed to df_mw_equal_p and changed to use
1468 vector rep for refs.
1469 * df.h (df_ref_flags.(DF_REF_MW_HARDREG_GROUP, DF_REF_REF_MARKER):
1470 Removed.
1471 (df_ref_flags.(DF_REF_REG_MARKER, DF_REGS_EVER_LIVE)): Renumbered.
1472 (df_mw_hardreg.(loc, start_regno, end_regno, mw_order)): New
1473 fields.
1474 (df_insn_info.(defs, uses, eq_uses, mw_hardregs): Made into arrays
1475 of pointers.
1476 (df_scan_bb_info.(artificial_defs, artificial_uses): Ditto.
1477 (df_ref.ref_order): New field.
1478 (df_ref.next): Removed.
1479 (df.ref_order): New field.
1480 (DF_REF_REF_MARK, DF_REF_REF_UNMARK, DF_REF_IS_REF_MARKED,
1481 DF_REF_NEXT_REF): Removed macro.
1482 (DF_REF_ORDER): New macro.
1483 * df-core.c (df_bb_regno_last_use_find, df_bb_regno_last_use_find,
1484 df_bb_regno_first_def_find, df_bb_regno_last_def_find,
1485 df_insn_regno_def_p, df_find_def, df_find_use, df_refs_chain_dump,
1486 df_mws_dump, df_insn_uid_debug, df_insn_debug): Ditto.
1487 * fwprop.c (update_df): Do not call df_insn_rescan unless insn has
1488 changed.
1489 (local_ref_killed_between_p, all_uses_available_at,
1490 find_occurrence, update_df): Changed to use
1491 vector rep for refs.
1492 * see.c (see_handle_relevant_refs, see_update_relevancy,
1493 see_propagate_extensions_to_uses): Ditto.
1494 * auto-inc-dec.c (find_inc, merge_in_block): Ditto.
1495 * web.c (union_defs, web_main): Ditto.
1496 * global.c (compute_regs_asm_clobbered): Ditto.
1497 * ifcvt.c (dead_or_predicable): Ditto.
1498 * loop-invariant.c (find_defs, check_dependency,
1499 find_invariant_insn): Ditto.
1500 * combine.c (create_log_links): Ditto.
1501 * df-problems.c (df_ru_alloc, df_ru_bb_local_compute_process_def,
1502 df_ru_bb_local_compute_process_use, df_rd_alloc,
1503 df_rd_bb_local_compute_process_def, df_lr_bb_local_compute,
1504 df_lr_simulate_artificial_refs_at_end, df_lr_simulate_one_insn,
1505 df_ur_bb_local_compute, df_urec_bb_local_compute,
1506 df_urec_bb_local_compute, df_chain_remove_problem,
1507 df_chain_remove_problem, df_chain_reset,
1508 df_chain_create_bb_process_use, df_chain_create_bb,
1509 df_chain_top_dump, df_chain_top_dump, df_chain_bottom_dump,
1510 df_set_unused_notes_for_mw, df_set_dead_notes_for_mw,
1511 df_ri_bb_compute): Ditto.
1512 * dce.c (delete_corresponding_reg_eq_notes, mark_artificial_uses,
1513 mark_reg_dependencies, dce_process_block): Ditto.
1517 2007-01-10 Seongbae Park <seongbae.park@gmail.com>
1518 * df-core.c (df_worklist_propagate_backward,
1519 df_worklist_dataflow)): More comments.
1520 (df_iterative_dataflow): Whitespace fixup.
1521 * cfganal.c (inverted_post_order_compute):
1522 More comments and rename a local variable DEST to PRED.
1523 (df_find_deadend): More comments. Use gcc_unreachable().
1525 2007-01-09 Seongbae Park <seongbae.park@gmail.com>
1526 * df-core.c (rest_of_handle_df_initialize): Allocate and free new
1527 fields struct dataflow::{postorder_inverted,n_blocks_inverted}.
1528 (df_hybrid_search_forward, df_hybrid_search_backward): Pass visited,
1529 pending, considered as parameters instead of fields of struct df.
1530 (df_worklist_propagate_forward, df_worklist_propagate_backward,
1531 df_worklist_dataflow): New functions.
1532 (df_iterative_dataflow): Remove visited, pending, considered
1533 fields from struct dataflow.
1534 (df_analyze): Allocate and free new fields
1535 df::{postorder_inverted,n_blocks_inverted}.
1536 (df_get_n_blocks, df_get_postorder): Make them return
1537 different values depending on the direction of the dataflow problem.
1538 (df_simple_dataflow): Renamed from df_simple_iterative_dataflow.
1539 Call df_worklist_dataflow instead of df_iterative_dataflow.
1540 * cfganal.c (dfs_find_deadend, inverted_post_order_compute):
1541 New functions.
1542 * df.h (struct dataflow): Remove fields visited, pending, considered.
1543 Add new fields postorder_inverted, n_blocks_inverted.
1544 (df_get_nblocks, df_get_postorder): Prototype change.
1545 (df_simple_dataflow): Renamed from df_simple_iterative_dataflow.
1546 (df_worklist_dataflow): New function prototype.
1547 * df-problems.c: Use df_worklist_dataflow instead of
1548 df_iterative_dataflow for solver.
1549 * basic-block.h (inverted_post_order_compute): New function prototype.
1550 * dce.c (dce_process_block): Pass extra parameter to df_get_n_blocks
1551 and df_get_postorder.
1552 (calculate_reaching_stores): Call df_simple_dataflow,
1553 renamed from df_simple_iterative_dataflow.
1556 2007-01-05 Kenneth Zadeck <zadeck@naturalbridge.com>
1557 * see.c (see_update_defs_relevancy): Type fixed.
1558 * df-scan.c (df_reg_chain_unlink, df_ref_verify): Made tolerant of
1559 refs table not being there.
1560 (df_drop_organized_tables): New function.
1561 * df-core.c (df_finish_pass): Drop refs tables after each pass.
1562 * web.c (web_main): Reorganized access to not use ref tables and
1563 go in order of insns.
1564 * df.h (df_drop_organized_tables): New function.
1565 * df-problems.c (df_chain_start_dump): Deleted function.
1566 (df_chain_top_dump, df_chain_bottom_dump): New functions.
1568 2007-01-03 Kenneth Zadeck <zadeck@naturalbridge.com>
1569 * see.c (see_initialize_data_structures): Does not use
1570 DF_USES_TABLE_SIZE or DF_DEFS_TABLE_SIZE.
1571 (see_handle_relevant_defs, see_handle_relevant_uses): Removed
1572 outer loop. Now a subrouting of see_handle_relevant_refs.
1573 (see_handle_relevant_refs, see_update_relevancy): New functions
1574 that now loops over insns.
1575 (see_update_uses_relevancy, see_update_defs_relevancy): Removed
1576 outer loop. Now a subroutine of see_update_relevancy.
1577 (see_analyze_one_def): Removed unnecessary tests.
1578 (see_propagate_extensions_to_uses): Now iterates over insns and
1579 calls see_handle_relevant_refs and see_update_relevancy.
1580 * df-scan.c (df_reg_chain_unlink, df_insn_delete): Added code to
1581 skip the chain field of refs if the chain problem is not active.
1582 (df_scan_verify): Moved verification of the
1583 out_of_date_transfer_functions fields into the problem verifiers.
1584 * df-core.c (df_set_blocks): More logging.
1585 (df_finish_pass): Moved around when recanning is done.
1586 (rest_of_handle_df_initialize): Moved creation of
1587 handles out_of_date_transfer_functions to the problems.
1588 (df_set_bb_dirty, df_clear_bb_dirty, df_compact_blocks): Now
1589 handles out_of_date_transfer_functions in any problem.
1590 * df.h: Added comments.
1591 * df-problems.c (df_lr_add_problem, df_ur_add_problem,
1592 df_chain_add_problem): Allocates out_of_date_transfer_functions.
1593 (df_lr_verify_transfer_functions,
1594 df_ur_verify_transfer_functions): Now verifies
1595 out_of_date_transfer_functions.
1596 (df_chain_remove_problem): Tears down problem by looping over
1597 insns.
1598 (df_chain_fully_remove_problem, df_chain_free): Frees
1599 out_of_date_transfer_functions.
1600 (df_chain_create_bb): Sets out_of_date_transfer_functions.
1603 2007-01-02 Kenneth Zadeck <zadeck@naturalbridge.com>
1604 * df-scan.c (df_reg_chain_create, df_reg_chain_unlink,
1605 df_ref_create_structure, df_hard_reg_used_p): Added code to
1606 process df->hard_regs_live_count.
1607 (df_ref_is_record_live, df_reg_chain_find_ref): Deleted.
1608 (df_refs_add_to_chains): Removed ifdefed code.
1609 (df_compute_regs_ever_live): Fixed "&" vs "&&" problem.
1610 * df-core (rest_of_handle_df_initialize,
1611 rest_of_handle_df_finish): Added code to
1612 process df->hard_regs_live_count.
1613 * global.c (global_alloc): Repositioned use of urec problem.
1614 (build_insn_chain): Changed use of DF_RA_LIVE_TOP to df_get_live_top.
1615 (rest_of_handle_global_alloc): Removed call to df_analyze for no
1616 optimize case.
1617 * local-alloc.c (update_equiv_regs): Added calls to
1618 df_notes_rescan where eq notes are hacked.
1619 (block_alloc): Changed DF_RA_LIVE_TOP to DF_LR_TOP.
1620 (rest_of_handle_local_alloc): Removed addition of urec problem.
1621 * function.c (regno_clobbered_at_setjmp): Changed df_get_live_out
1622 to DF_LIVE_OUT.
1623 * (df_ref_flags.DF_REGS_EVER_LIVE): New flag.
1624 (df.hard_regs_live_count): New bitmap.
1625 (DF_LR_TOP, DF_REG_EVER_LIVE_P): New macro.
1626 (df_get_live_out): Removed.
1627 (df_get_live_top): Added.
1628 * df-problems.c (df_get_live_in): Does not look at DF_LIVE.
1629 (df_get_live_out): Deleted.
1630 (df_get_live_top): Added.
1631 * config/sh/sh.c (calc_live_regs): Changed regs_ever_live to
1632 df_regs_ever_live_p.
1633 * config/mn10300/mn10300.c (fp_regs_to_save): Ditto.
1634 * reload1.c (reload): Corrected the set of bitmaps to modify after
1635 reloading.
1638 2007-01-01 Eric Christopher <echristo@apple.com>
1640 * config/darwin.c: Include df.h.
1641 (machopic_legitimize_pic_address): Use
1642 df_set_regs_ever_live.
1644 2006-12-28 Kenneth Zadeck <zadeck@naturalbridge.com>
1645 * regs.h: (regs_ever_live, regs_asm_clobbered): Removed.
1646 * final.c (regs_ever_live, regs_asm_clobbered): Removed.
1647 (only_leaf_regs_used, leaf_renumber_regs_insn): Encapsulated
1648 references to regs_ever_live.
1649 * global.c (insn_contains_asm_1, insn_contains_asm,
1650 compute_regs_asm_clobbered): New functions.
1651 (global_alloc): Added call to compute_regs_asm_clobbered and
1652 encapsulated references to regs_ever_live.
1653 (dump_global_regs): Encapsulated references to regs_ever_live.
1654 (rest_of_handle_global_alloc): Changed call to df_scan_alloc.
1655 * regrename.c (regrename_optimize, regrename_optimize): Encapsulated
1656 references to regs_ever_live.
1657 * recog.c (peep2_find_free_register): Ditto.
1658 * rtl-factoring (recompute_gain_for_pattern_seq,
1659 abstract_best_seq): Ditto.
1660 * bt-load.c (move_btr_def, migrate_btr_defs): Ditto.
1661 * reg_stack.c (reg_to_stack): Ditto.
1662 * config/alpha/alpha.c (alpha_ra_ever_killed, alpha_sa_mask,
1663 alpha_sa_size): Ditto.
1664 * config/frv/frv.c (frv_stack_info, frv_function_prologue): Ditto.
1665 * config/s390/390.c (legitimize_pic_address,
1666 legitimize_tls_address, find_unused_clobbered_reg,
1667 s390_regs_ever_clobbered, s390_register_info,
1668 s390_init_frame_layout, s390_update_frame_layout,
1669 s390_emit_prologue): Ditto.
1670 * config/m32c/m32.c (need_to_save): Ditto.
1671 * config/spu/spu.c (spu_split_immediate): Ditto.
1672 * config/sparc/sparc.c (sparc_compute_frame_size,
1673 sparc_output_scratch_registers, save_or_restore_regs,
1674 order_regs_for_local_alloc): Ditto.
1675 * config/m32r/m32r.c (MUST_SAVE_FRAME_POINTER,
1676 MUST_SAVE_RETURN_ADDR, m32r_hard_regno_rename_ok): Ditto.
1677 * config/i386/i386.h (ix86_current_function_calls_tls_descriptor):
1678 Ditto.
1679 * config/i386/i386.c (ix86_select_alt_pic_regnum, ix86_save_reg,
1680 ix86_expand_prologue, legitimize_pic_address,
1681 legitimize_tls_address): Ditto.
1682 * config/sh/sh.c (calc_live_regs, sh_media_register_for_return,
1683 sh_expand_prologue, sh_hard_regno_rename_ok): Ditto.
1684 * config/pdp11/pdp11.c (pdp11_output_function_prologue,
1685 pdp11_output_function_epilogue): Ditto.
1686 * config/pdp11/pdp11.h (may_call_alloca): Ditto.
1687 * config/avr/avr.c (avr_regs_to_save, sequent_regs_live,
1688 avr_peep2_scratch_safe): Ditto.
1689 * config/crx/crx.h (HARD_REGNO_RENAME_OK): Ditto.
1690 * config/crx/crx.c (crx_compute_save_regs): Ditto.
1691 * config/c4x/c4x.c (c4x_isr_reg_used_p, c4x_expand_prologue,
1692 c4x_null_epilogue_p): Ditto.
1693 * config/c4x/c4x.h (reg_class): Ditto.
1694 * config/stormy16/stormy16.c (REG_NEEDS_SAVE): Ditto.
1695 * config/fr30/fr30.c (MUST_SAVE_FRAME_POINTER,
1696 MUST_SAVE_RETURN_POINTER): Ditto.
1697 * config/m68hc11/m68hc11.c (m68hc11_initial_elimination_offset,
1698 m68hc11_total_frame_size, expand_prologue): Ditto.
1699 * config/cris/cris.c (cris_reg_saved_in_regsave_area,
1700 cris_return_addr_rtx): Ditto.
1701 * config/iq2000/iq2000.h (MUST_SAVE_REGISTER): Ditto.
1702 * config/iq2000/iq2000.c (iq2000_can_use_return_insn): Ditto.
1703 * config/mt/mt.c (mt_compute_frame_size): Ditto.
1704 * config/mt/mt.h (save_direction): Ditto.
1705 * config/mn10300/mn10300.c (REG_SAVE_BYTES, can_use_return_insn,
1706 mn10300_get_live_callee_saved_regs, expand_prologue,
1707 initial_offset): Ditto.
1708 * config/ia64/ia64.c (find_gr_spill, ia64_compute_frame_size):
1709 Ditto.
1710 * config/m68k/m68k.c (m68k_save_reg, m68k_hard_regno_rename_ok):
1711 Ditto.
1712 * config/rs6000/rs6000.c (rs6000_got_register, first_reg_to_save,
1713 first_fp_reg_to_save, first_altivec_reg_to_save,
1714 compute_vrsave_mask, rs6000_stack_info, create_TOC_reference,
1715 rs6000_emit_prologue): Ditto.
1716 * config/rs6000/rs6000.h (HARD_REGNO_RENAME_OK): Ditto.
1717 * config/arc/arc.c (MUST_SAVE_REGISTER, MUST_SAVE_RETURN_ADDR):
1718 Ditto.
1719 * config/mcore/mcore.c (calc_live_regs): Ditto.
1720 * config/score/score-mdaux.c (score_save_reg_p): Ditto.
1721 * config/arm/arm.c (use_return_insn, thumb_find_work_register,
1722 arm_compute_save_reg0_reg12_mask, arm_compute_save_reg_mask,
1723 arm_get_vfp_saved_size, arm_output_epilogue, thumb_force_lr_save,
1724 arm_get_frame_offsets, arm_expand_prologue, thumb_far_jump_used_p,
1725 thumb_unexpanded_epilogue, thumb_expand_epilogue): Ditto.
1726 * config/arm/arm.h (HARD_REGNO_RENAME_OK): Ditto.
1727 * config/pa/pa.c (compute_frame_size, pa_output_function_prologue,
1728 hppa_expand_prologue, hppa_expand_epilogue,
1729 hppa_can_use_return_insn_p, output_lbranch): Ditto.
1730 * config/pa/pa.h (HARD_REGNO_RENAME_OK): Ditto.
1731 * config/mips/mips.c (mips_global_pointer, mips_save_reg_p,
1732 mips_can_use_return_insn, build_mips16_call_stub): Ditto.
1733 * config/vax/vax.c (vax_output_function_prologue): Ditto.
1734 * config/v850/v850.c (substitute_ep_register,
1735 compute_register_save_size): Ditto.
1736 * config/h8300/h8300.c (byte_reg, h8300_hard_regno_rename_ok):
1737 Ditto.
1738 * config/mmix/mmix.c (MMIX_CFUN_NEEDS_SAVED_EH_RETURN_ADDRESS,
1739 mmix_initial_elimination_offset, mmix_reorg,
1740 mmix_use_simple_return, mmix_expand_prologue,
1741 mmix_expand_epilogue): Ditto.
1742 * config/bfin/bfin.c (n_dregs_to_save, n_pregs_to_save,
1743 n_regs_saved_by_prologue, expand_interrupt_handler_prologue,
1744 expand_interrupt_handler_epilogue, bfin_hard_regno_rename_ok):
1745 Ditto.
1746 * reload1.c (reload, mark_home_live, spill_hard_reg,
1747 finish_spills): Ditto.
1748 * df-scan.c (regs_ever_live): Added as local var.
1749 (df_scan_free_internal): Delete bitmap.
1750 (df_scan_free_bb_info): Inlined code from removed df_bb_delete.
1751 (df_scan_alloc): Removed blocks_to_rescan param and reference to
1752 out_of_date_transfer_functions and added insns_to_notes_rescan.
1753 (df_scan_free): Removed reference to
1754 out_of_date_transfer_functions.
1755 (df_scan_start_dump, df_scan_start_block): Added ";;" in front of
1756 debugging lines.
1757 (problem_SCAN): Added extra null fields.
1758 (df_scan_blocks): Added code to set entry and exit blocks as
1759 dirty.
1760 (df_insn_delete): Added basic block parameter and support for
1761 insns_to_notes_rescan.
1762 (df_bb_delete): Removed.
1763 (df_insn_rescan, df_insn_rescan_all, df_process_deferred_rescans,
1764 df_notes_rescan): Added support for insns_to_notes_rescan.
1765 (df_insn_rescan, df_insn_rescan_all, df_process_deferred_rescans):
1766 Added extra parameter to df_insn_delete.
1767 (df_process_deferred_rescans): Added support to fixup entry and
1768 exit blocks if regs_ever_live changes.
1769 (df_insn_change_bb): Added debugging.
1770 (df_ref_change_reg_with_loc_1): Added code to dirty the block.
1771 (df_insn_contains_asm_1, df_insn_contains_asm): Function moved to
1772 global.c.
1773 (df_insn_refs_record): Removed code to set insn_contains_asm.
1774 (df_bb_refs_record): Now sets itself dirty.
1775 (df_get_entry_block_def_set, df_get_exit_block_use_set):
1776 Encapsulated references to regs_ever_live.
1777 (df_update_entry_block_defs, df_update_exit_block_uses): Added
1778 finer grained control on dirtying the block.
1779 (df_regs_ever_live_p, df_set_regs_ever_live): New functions.
1780 (df_compute_regs_ever_live): New reset parameter.
1781 (df_verify_blocks): Renamed to df_scan_verify and added more
1782 checking code.
1783 * df-core.c (df_add_problem): Initialized solutions_dirty.
1784 (df_finish_pass): Added calls to verify transfer functions.
1785 (rest_of_handle_df_initialize): Added more initialization for
1786 persistent structures.
1787 * (df_hybrid_search_forward, df_hybrid_search_backward,
1788 df_iterative_dataflow, df_analyze_problem): Removed single_pass parameter.
1789 (df_analyze_problem): Added checking for results of dataflow.
1790 (df_analyze): Added more debugging and removed changing
1791 out_of_date_transfer functions.
1792 (df_get_bb_dirty, df_set_bb_dirty, df_compact_blocks): Supports
1793 each problem having it own incremental
1794 status bits.
1795 (df_clear_bb_dirty, df_verify, df_compute_cfg_image,
1796 df_check_cfg_clean, df_set_clean_cfg): New function.
1797 (df_compact_blocks, df_bb_replace): More debugging.
1798 *df.h (df_alloc_function, df_local_compute_function): Removed
1799 blocks_to_scan parameter.
1800 (df_dataflow_function): Removed single_pass parameter.
1801 (df_verify_solution_start, df_verify_solution_end): New function
1802 types.
1803 (dataflow.out_of_date_transfer_functions,
1804 dataflow.solutions_dirty): Moved from df structure so each problem
1805 could have its own copy.
1806 (df_insn_info.contains_asm, DF_INSN_CONTAINS_ASM): Functionality
1807 moved into global.c.
1808 (df.solutions.dirty, out_of_date_transfer_functions): Moved to
1809 struct dataflow.
1810 (df.redo_entry_and_exit, df.insns_to_notes_rescan): New fields.
1811 (DF_DEBUG_CFG): Flag to control code to check if cfg modifications
1812 are being reported to df.
1813 * df-problems.c (df_print_bb_index, df_lr_top_dump,
1814 df_lr_bottom_dump, df_ur_top_dump, df_ur_bottom_dump): Cleanup
1815 more dump info.
1816 (df_ru_alloc, df_ru_local_compute, df_rd_alloc,
1817 df_rd_local_compute, df_lr_alloc, df_lr_local_compute,
1818 df_ur_alloc, df_ur_local_compute, df_live_alloc, df_urec_alloc,
1819 df_urec_local_compute, df_chain_alloc, df_ri_alloc,
1820 df_ri_compute): Removed blocks_to_rescan parameter.
1821 (problem_RU, problem_RD, problem_LR, problem_UR, problem_LIVE,
1822 problem_UREC, problem_RI): Added two new fields.
1823 (df_lr_problem_data, df_ur_problem_data): New data structure to
1824 support checking of dataflow solutions.
1825 (df_lr_alloc, df_lr_local_compute, df_ur_alloc,
1826 df_ur_local_compute, df_ur_free): Now processes only out of date blocks.
1827 (df_lr_reset, df_lr_verify_solution_start,
1828 df_lr_verify_solution_end, df_lr_verify_transfer_functions,
1829 df_ur_reset, df_ur_local_finalize, df_ur_verify_solution_start,
1830 df_ur_verify_solution_end, df_ur_verify_transfer_functions): New function.
1831 (df_lr_bb_local_compute, df_lr_local_compute): Moved asm scanning to global.c.
1832 (df_lr_local_finalize, df_lr_free, df_live_local_finalize): Added
1833 code to support incremental checking of dataflow solution.
1834 * passes.c (pass_free_cfg): Moved to before machine_reorg.
1835 * cfgrtl.c (rtl_delete_block, rtl_merge_blocks,
1836 cfg_layout_merge_blocks): Changed df_delete_basic_blocks to
1837 df_bb_delete.
1838 (update_bb_for_insn): Changed df_insn_rescan to df_insn_change_bb.
1839 (force_nonfallthru_and_redirect): Added call to
1840 df_mark_solutions_dirty.
1841 * dce.c (dce_process_block): Added more checking code and made the
1842 code closer to the functionality in df_lr.
1843 (fast_dce): Now skips entry and exit blocks. Deleted last parm to
1844 df_analyze_problem and removed changed bitmap.
1845 * fwprop.c (update_df, try_fwprop_subst): Added calls to df_set_bb_dirty.
1846 * cfg.c (connect_src, connect_dest, disconnect_src,
1847 disconnect_dest): Added calls to df_mark_solutions_dirty.
1848 * haifa-sched.c (move_succs): Ditto.
1849 * ifcvt.c (find_cond_trap): Moved calls to df_set_bb_dirty to
1850 before deletion of basic block.
1851 * emit-rtl.c (set_insn_deleted, remove_insn): Added basic block
1852 parm.
1853 * regclass.c (regclass_init): Added reset parm to df_compute_res_ever_live.
1856 2006-12-28 Kenneth Zadeck <zadeck@naturalbridge.com>
1857 * local_alloc.c (rest_of_handle_local_alloc): changed
1858 extra_warnings to warn_clobbered.
1860 2006-12-25 Kenneth Zadeck <zadeck@naturalbridge.com>
1861 * dce.c (delete_corresponding_reg_eq_notes): Added comment.
1862 (delete_unmarked_insns): Added code to delete noop moves
1863 inside of libcalls. Changed to used delete_insn_and_edges.
1865 2006-12-22 Andrew Pinski <andrew_pinski@playstation.sony.com>
1867 * config/spu/spu.c (immediate_load_p): Change usage of
1868 flow2_completed over to epilogue_completed.
1870 2006-12-22 Kenneth Zadeck <zadeck@naturalbridge.com>
1872 * df-problems.c (df_ru_start_dump, df_ru_top_dump,
1873 df_ru_bottom_dump, df_rd_start_dump, df_rd_top_dump,
1874 df_rd_bottom_dump, df_lr_top_dump, df_lr_bottom_dump,
1875 df_ur_top_dump, df_ur_bottom_dump, df_live_top_dump,
1876 df_urec_top_dump, df_urec_bottom_dump, df_chain_start_dump,
1877 df_ri_start_dump): Added ";; " to the beginning of dataflow
1878 information put in dump files.
1879 * dce.c (marked_libcalls, delete_unmarked_insns): Removed.
1880 (prescan_insns_for_dce, mark_libcall, dce_process_block,
1881 prescan_insns_for_dse): Replaced libcall marking mechanism.
1882 (init_dce, end_dce, end_fast_dce, run_fast_df_dce): Removed
1883 marked_libcalls.
1885 2006-12-16 Kenneth Zadeck <zadeck@naturalbridge.com>
1887 * regrename.c (mrege_overlapping_regs): Removed df parameter
1888 and changed calls to df_ routines to support new incremental
1889 scanning.
1890 * sched_ebb (schedule_ebbs): Removed return value and changed
1891 calls to df_ routines to support new incremental scanning.
1892 * fwprop.c (local_ref_killed_between_p, use_killed_between,
1893 all_uses_available_at, update_df, try_fwprop_subst, fwprop,
1894 fwprop_addr): Removed df parameter and changed calls to df_
1895 routines to support new incremental scanning.
1896 (gate_fwprop, gate_fwprop_addr): Reenabled pass.
1897 * doc/cfg.texi: Updated liveness info documentation.
1898 * doc/rtl.texi: Updated liveness info documentation.
1899 * see.c (see_initialize_data_structures, see_emit_use_extension,
1900 see_commit_changes, see_analyze_merged_def_local_prop,
1901 see_analyze_use_local_prop, see_set_prop_merged_def,
1902 see_set_prop_unmerged_use, see_store_reference_and_extension,
1903 see_handle_relevant_defs, see_handle_relevant_uses,
1904 see_update_uses_relevancy, see_propagate_extensions_to_uses,
1905 pass_see): Removed df parameter and changed calls to df_ routines
1906 to support new incremental scanning.
1907 * postreload.c (reload_cse_simplify_operands): Changed REGNO to
1908 SET_REGNO.
1909 (reload_combine): Removed df parameter and changed calls to df_
1910 routines to support new incremental scanning.
1911 * tree.h (generate_setjmp_warnings): Removed df parameter.
1912 * reload.c (push_reload, find_dummy_reload): Removed df parameter
1913 and changed calls to df_ routines to support new incremental
1914 scanning.
1915 * tree-pass.h (pass_df_initialize, pass_df_finish): New passes.
1916 * rtlanal.c (remove_note): Call df_notes_rescan if the
1917 REG_EQUAL/EQUIV notes change.
1918 * ddg.c (add_deps_for_def, add_deps_for_use,
1919 add_inter_loop_mem_dep): Removed df parameter and changed calls to
1920 df_ routines to support new incremental scanning.
1921 * ddg.h (struct df) Removed.
1922 * final.c (cleanup_subreg_operands): Added call df_insn_rescan if
1923 insn changes.
1924 (walk_alter_subreg): Added changed parameter to track changes.
1925 (output_address): Added changed parameter to walk_alter_subreg.
1926 * cfg.c (compact_blocks, dump_bb_info): Removed df parameter to df_
1927 calls.
1928 * auto_inc_dec.c (attempt_changed): Moved call to
1929 df_recompute_luids so that it is only called when moves are added.
1930 (find_inc, merge_in_block, rest_of_handle_auto_inc_dec): Removed
1931 df parameter and changed calls to df_ routines to support new
1932 incremental scanning.
1933 (merge_in_block): Added call to df_recompute_luids.
1934 * reorg.c (delete_from_delay_slot, relax_delay_slots): Added basic
1935 block parm to add_insn_after.
1936 (fill_simple_delay_slots, fill_slots_from_thread,
1937 fill_eager_delay_slots, make_return_insns, dbr_schedule): Removed
1938 df parameter and changed calls to df_ routines to support new
1939 incremental scanning.
1940 * df-scan.c (struct df_reg_chains): Removed.
1941 (df_scan_free_internal, df_scan_free_internal,
1942 df_scan_free_bb_info, df_scan_alloc, df_scan_free,
1943 df_scan_start_dump, df_scan_add_problem, df_grow_reg_info,
1944 df_check_and_grow_ref_info, df_grow_insn_info, df_scan_blocks,
1945 df_ref_create, df_scan_alloc, df_scan_start_block,
1946 df_scan_add_problem, df_grow_reg_info, df_check_and_grow_ref_info,
1947 df_grow_insn_info, df_scan_blocks, df_ref_create,
1948 df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
1949 df_ref_remove, df_insn_create_insn_record,
1950 df_ref_chain_delete_du_chain, df_ref_chain_delete, df_insn_delete,
1951 df_bb_delete, df_insn_rescan, df_reorganize_refs,
1952 df_insn_change_bb, df_maybe_reorganize_use_refs,
1953 df_maybe_reorganize_def_refs, df_reg_chain_find_ref,
1954 df_ref_find_chains, df_ref_add_to_chains, df_refs_add_to_chains,
1955 df_ref_create_structure, df_ref_record, df_def_record_1,
1956 df_defs_record, df_uses_record, df_get_conditional_uses,
1957 df_get_call_refs, df_get_call_refs, df_insn_refs_collect,
1958 df_insn_refs_record, df_recompute_luids, df_bb_refs_collect,
1959 df_bb_refs_record, df_bb_refs_record, df_mark_reg,
1960 df_get_entry_block_def_set, df_entry_block_defs_collect,
1961 df_record_entry_block_defs, df_update_entry_block_defs,
1962 df_exit_block_uses_collect, df_record_exit_block_uses,
1963 df_update_exit_block_uses, df_compute_regs_ever_live,
1964 df_reg_chain_unmark, df_ref_chain_free, df_ref_verify,
1965 df_ref_verify, df_insn_refs_verify, df_bb_verify,
1966 df_exit_block_bitmap_verify, df_entry_block_bitmap_verify,
1967 df_verify_blocks): Removed df and dflow parameters and changed
1968 calls to df_ routines to support new incremental scanning.
1969 (df_ref_chain_unmark): Renamed to df_ref_chain_verify_and_unmark.
1970 (df_scan_get_bb_info, df_scan_set_bb_info): Made tolerant of
1971 missing basic block info.
1972 (df_insn_rescan_all, df_process_deferred_rescans,
1973 df_ref_chain_find_ref_by_regno, df_ref_change_reg_with_loc_1,
1974 df_ref_change_reg_with_loc,
1975 df_mw_hardreg_chain_delete_eq_uses, df_notes_rescan,
1976 df_update_entry_exit_and_calls, df_hard_reg_used_p,
1977 df_mw_hardreg_find_hardreg): New function.
1978 (df_ref_is_pointer_equal, df_bb_refs_verify): Deleted function.
1979 * haifa_sched.c (move_insn): Removed df parameter and changed calls to
1980 df_ routines to support new incremental scanning.
1981 * df-core.c (df_init): Deleted function.
1982 (df): New static instance of dataflow.
1983 (df_add_problem, df_remove_problem, df_set_flags, df_clear_flags,
1984 df_set_blocks, df_delete_basic_block, df_hybrid_search_forward,
1985 df_hybrid_search_backward, df_iterative_dataflow,
1986 df_analyze_problem, df_analyze, df_get_n_blocks, df_get_postorder,
1987 df_mark_solutions_dirty, df_get_bb_dirty, df_set_bb_dirty,
1988 df_compact_blocks, df_bb_replace, df_bb_regno_last_use_find,
1989 df_bb_regno_first_def_find, df_bb_regno_last_def_find,
1990 df_insn_regno_def_p, df_find_def, df_reg_defined, df_find_use,
1991 df_reg_used, df_dump, df_dump_start, df_dump_top, df_dump_bottom,
1992 df_regs_chain_dump, df_insn_uid_debug, df_insn_debug,
1993 df_insn_debug_regno, df_regno_debug, debug_df_insn, debug_df_reg,
1994 debug_df_defno, debug_df_useno): Removed df parameter and
1995 changed calls to df_ routines to support new incremental scanning.
1996 (df_finish1): Deleted function.
1997 (df_remove_problem, df_finish_pass, rest_of_handle_df_initialize,
1998 rest_of_handle_df_finish): New function.
1999 (pass_df_finish, pass_df_initialize): New passes.
2000 * mode-switching.c (optimize_mode_switching): Removed df parameter and
2001 changed calls to df_ routines to support new incremental scanning.
2002 * modulo-sched.c (sms_schedule): Removed df parameter and
2003 changed calls to df_ routines to support new incremental scanning.
2004 (add_insn_before): Added extra parameter to add_insn_before.
2005 * caller-save.c (init_caller_save): Changed REGNO to SET_REGNO.
2006 * cse.c (cse_main): Disabled incremental df update during this
2007 pass.
2008 * web.c (union_defs, replace_ref, web_main, pass_web): Removed df
2009 parameter and changed calls to df_ routines to support new
2010 incremental scanning.
2011 * loop-init.c (rtl_unroll_and_peel_loops,
2012 pass_rtl_move_loop_invariants): Removed df parameter and changed
2013 calls to df_ routines to support new incremental scanning.
2014 * global.c (global_alloc, global_conflicts, retry_global_alloc,
2015 mark_elimination, build_insn_chain, rest_of_handle_global_alloc):
2016 Removed df parameter and changed calls to df_ routines to support
2017 new incremental scanning.
2018 * ifcvt.c (, find_if_header, find_if_case_1, find_if_case_2,
2019 dead_or_predicable, if_convert, pass_rtl_ifcvt,
2020 pass_if_after_combine, pass_if_after_reload): Removed df parameter
2021 and changed calls to df_ routines to support new incremental
2022 scanning.
2023 * expr.c (init_expr_once): Changed REGNO to SET_REGNO.
2024 * recog.c (peephole2_optimize, pass_split_all_insn): Removed df
2025 parameter and changed calls to df_ routines to support new
2026 incremental scanning.
2027 * regmove.c (mark_flags_life_zones, optimize_reg_copy_2,
2028 regmove_optimize, rest_of_handle_stack_adjustments): Removed df
2029 parameter and changed calls to df_ routines to support new
2030 incremental scanning.
2031 * local-alloc.c (block_alloc, rest_of_handle_local_alloc): Removed df
2032 parameter and changed calls to df_ routines to support new
2033 incremental scanning.
2034 * function.c (regno_clobbered_at_setjmp, setjmp_vars_warning,
2035 setjmp_args_warning, generate_setjmp_warnings,
2036 keep_stack_depressed, thread_prologue_and_epilogue_insns,
2037 epilogue_done, rest_of_handle_thread_prologue_and_epilogue): Removed df
2038 parameter and changed calls to df_ routines to support new
2039 incremental scanning.
2040 * function.h (df): Deleted variable.
2041 * df.h (DF_RU, DF_RD, DF_LR, DF_UR, DF_LIVE): Renumbered to put
2042 permanent problems before optional problems.
2043 (DF_FIRST_OPTIONAL_PROBLEM): New symbol.
2044 (df_ref_flags.DF_REF_REF_MARKER, df_ref_flags.DF_REF_REG_MARKER): New flag.
2045 (df_ref_flags.DF_REF_ARTIFICIAL, df_ref_flags.DF_REF_MARKER):
2046 Deleted flag.
2047 (df_alloc_function, df_reset_function, df_free_bb_function,
2048 df_local_compute_function, df_init_function, df_dataflow_function,
2049 df_confluence_function_0, df_confluence_function_n,
2050 df_transfer_function, df_finalizer_function, df_free_function,
2051 df_remove_problem_function, df_dump_problem_function,
2052 df_dump_bb_problem_function, DF_SCAN_BB_INFO, DF_RU_BB_INFO,
2053 DF_RD_BB_INFO, DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_BB_INFO,
2054 DF_LIVE_IN, DF_LIVE_OUT, DF_RA_LIVE_IN, DF_RA_LIVE_OUT,
2055 DF_RA_LIVE_TOP, DF_LR_IN, DF_LR_OUT, DF_UR_IN, DF_UR_OUT,
2056 DF_DEFS_GET, DF_DEFS_SET, DF_DEFS_COUNT, DF_DEFS_BEGIN,
2057 DF_USES_GET, DF_USES_SET, DF_USES_COUNT, DF_USES_BEGIN,
2058 DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_CHAIN, DF_REG_DEF_COUNT,
2059 DF_REG_USE_GET, DF_REG_USE_CHAIN, DF_REG_USE_COUNT,
2060 DF_REG_EQ_USE_GET, DF_REG_EQ_USE_CHAIN, DF_REG_EQ_USE_COUNT,
2061 DF_REGNO_FIRST_DEF, DF_REGNO_LAST_USE, DF_REGNO_FIRST_DEF,
2062 DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
2063 DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
2064 DF_INSN_EQ_USES, DF_INSN_UID_GET, DF_INSN_UID_SAFE_GET,
2065 DF_INSN_UID_LUID, DF_INSN_UID_DEFS, DF_INSN_UID_USES,
2066 DF_INSN_UID_EQ_USES, DF_INSN_UID_MWS): Removed df or dflow
2067 parameter and changed calls to df_ routines to support new
2068 incremental scanning.
2069 (DF_DEFS_SIZE, DF_USES_SIZE): Renamed to DF_DEFS_TABLE_SIZE and
2070 DF_USES_TABLE_SIZE.
2071 (DF_DEFS_TOTAL_SIZE, DF_USES_TOTAL_SIZE, df_scan, df_ru, df_rd,
2072 df_lr, df_ur, df_live, df_urec, df_chain, df_ri,
2073 DF_DEFS_TOTAL_SIZE, DF_USES_TOTAL_SIZE): New macros.
2074 (dataflow.df): Removed field.
2075 (df_ref_info.bitmap_size): Split into df_ref_info.table_size and
2076 df_ref_info.total_size.
2077 (dataflow.local_flags, df_insn_info.insn,
2078 df_changeable_flags.DF_DEFER_INSN_RESCAN, df_ref_info.count,
2079 df.insns_to_rescan, df.insns_to_delete): New field.
2080 (df_permanent_flags): Split into df_chain_flags and df_ri_flags.
2081 * gcse (try_replace_reg, adjust_libcall_notes,
2082 update_ld_motion_stores): Removed df
2083 parameter and changed calls to df_ routines to support new
2084 incremental scanning.
2085 (insert_insn_end_basic_block, insert_insn_start_basic_block):
2086 Added bb parameter to emit_insn_before_noloc.
2087 * rtl-factoring.c (match_seqs, collect_pattern_seqs,
2088 collect_pattern_seqs, clear_regs_live_in_seq,
2089 recompute_gain_for_pattern_seq,, recompute_gain,
2090 split_blocks_after_seqs, split_pattern_seq, erase_matching_seqs,
2091 abstract_best_seq, rtl_seqabstr): Removed df parameter and changed
2092 calls to df_ routines to support new incremental scanning.
2093 * expmed.c (init_expmed): Changed REGNO to SET_REGNO.
2094 * bt-load.c (, compute_defs_uses_and_gen, build_btr_def_use_webs,
2095 migrate_btr_defs, branch_target_load_optimize,
2096 pass_branch_target_load_optimize1,
2097 pass_branch_target_load_optimize1): Removed df parameter and changed
2098 calls to df_ routines to support new incremental scanning.
2099 * emit-rtl.c (add_insn_after, add_insn_before,
2100 emit_insn_before_noloc, emit_insn_after_1,
2101 emit_insn_after_noloc): Added basic block parameter and threaded
2102 it to subcalls.
2103 (emit_jump_insn_before_noloc,
2104 emit_call_insn_before_noloc, emit_barrier_before,
2105 emit_label_before, emit_note_before, emit_call_insn_after_noloc,
2106 emit_jump_insn_after_noloc, emit_label_after, emit_note_after,
2107 emit_insn_after_setloc, emit_insn_before_setloc): Add NULL basic
2108 block parameter to certain subcalls.
2109 (set_unique_reg_note): Now calls df_notes_rescan if REG_EQUAL or
2110 REG_EQUIV notes change.
2111 * loop-invariant.c (check_invariant_table_size,
2112 hash_invariant_expr_1, invariant_expr_equal_p, find_defs,
2113 check_dependencies, record_uses, find_invariants_to_move,
2114 move_invariant_reg, fail, free_inv_motion_data,
2115 move_loop_invariants): Removed df parameter and changed
2116 calls to df_ routines to support new incremental scanning.
2117 * subregs_init (initialize_uninitialized_subregs): Removed df
2118 parameter and changed calls to df_ routines to support new
2119 incremental scanning.
2120 * loop-iv.c (iv_current_loop_df): Deleted function.
2121 (check_iv_ref_table_size, clear_iv_info, iv_analysis_loop_init,
2122 latch_dominating_def, iv_get_reaching_def, iv_get_reaching_def,
2123 iv_analyze, iv_analyze_result, biv_p, iv_analysis_done): Removed df
2124 parameter and changed calls to df_ routines to support new
2125 incremental scanning.
2126 * regclass.c (regclass_init): Insert call to recalculate the
2127 effects of changing regs_ever_live.
2128 (init_reg_autoinc): Changed REGNO to SET_REGNO.
2129 * rtl.h (REGNO): Changed so that it cannot appear on lhs.
2130 (SET_REGNO): New macro.
2131 (rhs_regno): New function.
2132 (basic_block): New forward declaration.
2133 * integrate.c (allocate_initial_values): Changed REGNO to
2134 SET_REGNO and removed df parameter and changed calls to df_
2135 routines to support new incremental scanning.
2136 * combine.c (set_nonzero_bits_and_sign_copies, subst,
2137 reg_nonzero_bits_for_combine, reg_num_sign_bit_copies_for_combine,
2138 get_last_value_validate, get_last_value, reg_dead_at_p,
2139 create_log_links, create_log_links, rest_of_handle_combine,
2140 pass_combine): Removed df parameter and changed calls to df_
2141 routines to support new incremental scanning.
2142 * stack-ptr-mod.c (notice_stack_pointer_modification): Removed df
2143 parameter and changed calls to df_ routines to support new
2144 incremental scanning.
2145 * resource.c (mark_target_live_regs): Removed df
2146 parameter and changed calls to df_ routines to support new
2147 incremental scanning.
2148 * resource.h (mark_target_live_regs): Removed df
2149 parameter and changed calls to df_ routines to support new
2150 incremental scanning.
2151 * cfgloop.h (iv_current_loop_df): Removed.
2152 * df-problems.c (df_get_live_in, df_get_live_out,
2153 df_ru_get_bb_info, df_ru_set_bb_info, df_ru_free_bb_info,
2154 df_ru_alloc, df_ru_bb_local_compute_process_def,
2155 df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
2156 df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
2157 df_ru_transfer_function, df_ru_free, df_ru_start_dump,
2158 df_ru_top_dump, df_ru_bottom_dump, df_ru_add_problem,
2159 df_rd_get_bb_info, df_rd_set_bb_info, df_rd_free_bb_info,
2160 df_rd_alloc, df_rd_bb_local_compute_process_def,
2161 df_rd_bb_local_compute, df_rd_local_compute, df_rd_init_solution,
2162 df_rd_confluence_n, df_rd_transfer_function, df_rd_free,
2163 df_rd_start_dump, df_rd_top_dump, df_rd_bottom_dump,
2164 df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
2165 df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
2166 df_lr_local_compute, df_lr_init, df_lr_confluence_0,
2167 df_lr_confluence_n, df_lr_transfer_function, df_lr_local_finalize,
2168 df_lr_free, df_lr_simulate_artificial_refs_at_end,
2169 df_lr_simulate_one_insn, df_lr_top_dump, df_lr_bottom_dump,
2170 df_lr_add_problem, df_ur_get_bb_info, df_ur_set_bb_info,
2171 df_ur_free_bb_info, df_ur_alloc, df_ur_bb_local_compute,
2172 df_ur_local_compute, df_ur_init, df_ur_confluence_n,
2173 df_ur_transfer_function, df_ur_free, df_ur_top_dump,
2174 df_ur_bottom_dump, df_ur_add_problem, df_live_get_bb_info,
2175 df_live_set_bb_info, df_live_free_bb_info, df_live_alloc,
2176 df_live_local_finalize, df_live_free, df_live_top_dump,
2177 df_live_add_problem, df_urec_get_bb_info, df_urec_set_bb_info,
2178 df_urec_free_bb_info, df_urec_alloc, df_urec_bb_local_compute,
2179 df_urec_local_compute, df_urec_init, df_urec_local_finalize,
2180 df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
2181 df_urec_top_dump, df_urec_bottom_dump, df_urec_add_problem,
2182 df_chain_create, df_chain_unlink, df_chain_copy,
2183 df_chain_remove_problem, df_chain_alloc, df_chain_reset,
2184 df_chain_create_bb_process_use, df_chain_create_bb,
2185 df_chain_finalize, df_chain_free, df_chain_start_dump,
2186 df_chain_add_problem, df_ri_alloc, df_kill_notes,
2187 df_set_dead_notes_for_mw, df_set_unused_notes_for_mw,
2188 df_create_unused_note, df_ri_bb_compute, df_ri_compute,
2189 df_ri_free, df_ri_start_dump, df_ri_add_problem,
2190 df_ri_get_setjmp_crosses): Removed df and dflow parameters and
2191 changed calls to df_ routines to support new incremental scanning.
2192 (df_chain_unlink_1, df_chain_fully_remove_problem): New function.
2193 * reg-stack.c (reg_to_stack): Removed df parameter and changed
2194 calls to df_ routines to support new incremental scanning.
2195 * Makefile.in (rtlanal.o, expr.o, expmed.o, cse.o, gcse.o,
2196 regclass.o, caller-save.o, stack-ptr-mod.o, final.o): Added df.h.
2197 (reorg.o): Deleted df.h.
2198 * sched-rgn.c (check_live_1, update_live_1, schedule_insns):
2199 Removed df parameter and changed calls to df_ routines to support
2200 new incremental scanning.
2201 * basic-block.h (forward for basic_block): Moved to rtl.h.
2202 * passes.c (pass_df_initialize, pass_df_finish): New passes.
2203 (execute_todo): Changed TODO_df_finish.
2204 * struct-equiv.c (insns_match_p, struct_equiv_init): Removed df
2205 parameter and changed calls to df_ routines to support new
2206 incremental scanning.
2207 * config/frv/frv.c (frv_function_prologue, frv_int_to_acc):
2208 Changed REGNO to SET_REGNO.
2209 (frv_reorder_packet): Added null basic block parm to
2210 add_insn_before.
2211 * config/i386/i386.c (ix86_eax_live_at_start_p): Removed df
2212 parameter and changed calls to df_ routines to support new
2213 incremental scanning.
2214 (ix86_expand_prologue, ix86_output_function_epilogue):
2215 Changed REGNO to SET_REGNO.
2216 * config/ia64/ia64.c (emit_predicate_relation_info, ia64_reorg):
2217 Removed df parameter and changed calls to df_ routines to support
2218 new incremental scanning.
2219 * config/mips/mips.c (mips_expand_prologue): Changed REGNO to
2220 SET_REGNO.
2221 * cfgrtl.c (commit_one_edge_insertion, rtl_dump_bb,
2222 print_rtl_with_bb, cfg_layout_merge_blocks,
2223 insert_insn_end_bb_new): Added bb parameter to insn insert calls.
2224 * dce.c (prescan_insns_for_dce): Removed fast parameter.
2225 (init_dce, end_dce, mark_artificial_uses, mark_reg_dependencies,
2226 end_fast_dce, dce_process_block, fast_dce, run_fast_df_dce,
2227 rs_init, rs_confluence, rs_transfer_function, dump_stores,
2228 record_store, mark_dependent_stores, prescan_insns_for_dse,
2229 rest_of_handle_dse): Removed df parameter and changed calls to df_
2230 routines to support new incremental scanning.
2231 (rest_of_handle_dce, gate_dce, run_dce, pass_rtl_dce): Deleted.
2232 (delete_corresponding_reg_equal_notes): Renamed to
2233 delete_corresponding_reg_eq_notes and made to process both kinds
2234 of notes.
2235 (delete_unmarked_insns): Changed call to
2236 delete_corresponding_reg_eq_notes.
2237 * dce.h (run_fast_df_dce): Removed df parameter.
2238 * reload1.c (compute_use_by_pseudos, reload): Removed df parameter
2239 and changed calls to df_ routines to support new incremental
2240 scanning.
2241 (alter_reg): Changed REGNO to SET_REGNO.
2244 2006-12-07 David Edelsohn <edelsohn@gnu.org>
2246 * config/rs6000/predicates.md (lwa_operand): Allow PRE_MODIFY
2247 indexed address.
2248 * config/rs6000/rs6000-protos.h (legitimate_indexed_address_p):
2249 Declare.
2250 * config/rs6000/rs6000.c (legitimate_indexed_address_p): Remove
2251 static.
2253 2006-12-07 David Edelsohn <edelsohn@gnu.org>
2255 * config/rs6000/predicates.md (lwa_operand): Exclude PRE_MODIFY
2256 addresses.
2258 2006-12-01 Seongbae Park <seongbae.park@gmail.com>
2260 * dbgcnt.def: New counters
2261 * postreload-gcse.c (delete_redundant_insns_1): New
2262 debug counter point.
2263 * postreload.c (reload_cse_move2add, gate_handle_postreload):
2264 New debug counter point.
2265 * auto-inc-dec.c (move_notes): Removed.
2266 (move_dead_notes): New function.
2267 (attempt_change): Call move_dead_notes(). Add missing dependency check.
2268 * haifa-sched.c (schedule_block): New debug counter point.
2269 * cse.c (delete_trivially_dead_insns): New debug counter point.
2270 * gcse.c (pre_delete): New debug counter point.
2271 * Makefile.in: Adding dependency on DBGCNT_H.
2272 * sched-rgn.c (schedule_region): New debug counter point.
2273 * dce.c (delete_corresponding_reg_equal_notes): New function
2274 (delete_unmarked_insns): Call delete_corresponding_reg_equal_notes.
2277 2006-11-28 Seongbae Park <seongbae.park@gmail.com>
2279 * dbgcnt.def: Updated comments. Added new counters.
2280 * auto-inc-dec.c (try_merge): Debug counter.
2281 * global.c (global_conflicts): Use DF_RA_LIVE_TOP() instead of
2282 df_urec_get_live_at_top().
2283 * dbgcnt.c (count, limit): Use dbgcnt.def.
2284 (dbg_cnt_is_enabled): New function.
2285 (dbg_cnt): Use dbg_cnt_is_enabled().
2286 * local-alloc.c (block_alloc): Use DF_RA_LIVE_TOP instead of LIVE_IN.
2287 Add a debug counter.
2288 * df.h (DF_RA_LIVE_TOP): New Macro. Remove df_urec_get_live_at_top.
2289 (struct df_rd_bb_info): Added new fields ADEF, AUSE and TOP.
2290 (struct df_urec_bb_info): Added new field TOP.
2291 * loop-iv.c (iv_analyze_def): Added REG_P check.
2292 * df-problems.c (df_lr_free_bb_info): Free new fields AUSE, ADEF and
2293 TOP.
2294 (df_lr_alloc): Allocate new fields TOP, ADEF, AUSE.
2295 (df_lr_bb_local_compute): Compute ADEF and AUSE.
2296 (df_lr_transfer_function): Compute TOP, and then IN based on TOP, ADEF
2297 and AUSE.
2298 (df_lr_free): Free new fields AUSE, ADEF and TOP.
2299 (df_ur_bb_local_compute): Partial/conditional defs don't hide
2300 earlier defs.
2301 (df_urec_alloc): Allocate new field TOP.
2302 (df_urec_local_finalize): Calculate TOP as well as IN.
2303 (df_urec_free): Free new field TOP.
2304 (df_urec_get_live_at_top): Removed.
2305 * Makefile.in (auto-inc-dec.o, local-alloc.o, sched-rgn.o,
2306 sched-ebb.o, recog.o): Added dependency on DBGCNT_H.
2307 * sched-rgn.c (schedule_insns, gate_handle_sched, gate_handle_sched2):
2308 Added debug counter.
2309 * config/ia64/ia64.c (enum ia64_frame_regs): New enum.
2310 (struct ia64_frame_info): Changed register fields to use an array
2311 index by enum.
2312 (emitted_frame_related_regs): New static variable.
2313 (reg_emitted, get_reg, is_emitted): New function.
2314 (ia64_reload_gp): Use new enum.
2315 (find_gr_spill): Added a new param. Use emitted_frame_related_regs.
2316 (ia64_computea_frame_size, ia64_hard_regno_rename_ok,
2317 ia64_epilogue_uses):
2318 Use emitted_frame_related_regs.
2319 (ia64_expand_prologue): Extra deubg output. Use new enum.
2320 (ia64_expand_epilogue, ia64_direct_return, ia64_split_return_addr_rtx,
2321 ia64_output_function_prologue, ia64_output_function_epilogue,
2322 process_set):
2323 Use new enum.
2324 (ia64_init_expanders): New function.
2325 (ia64_reorg): New debug counter.
2326 * config/ia64/ia64.h (INIT_EXPANDERS): New call to
2327 ia64_init_expanders.
2331 2006-11-18 Kenneth Zadeck <zadeck@naturalbridge.com>
2333 * tree-pass.h (print_current_pass, debug_pass): New functions.
2334 * passes.c (print_current_pass, debug_pass): New functions.
2335 (exec_todo): Changed call to df_verify_blocks.
2336 (current_pass): New variable.
2337 * auto-inc-dec.c (attempt_change): Removed redundant call to
2338 df_insn_rescan and added debugging.
2339 (find_inc): Added debugging and fixed post-inc/dec bug.
2340 (merge_in_block): Fixed post-inc/dec bug.
2341 * dbgcnt.c: Fixed comments.
2342 * dbgcnt.c: Fixed comments.
2343 * loop-init.c (rtl_unroll_and_peel_loops): Added debugging.
2344 * loop-invariant.c (find_defs): Added debugging.
2345 * loop-iv.c (iv_analysis_loop_init): Added debugging.
2346 * df-scan.c (df_ref): Added parameter to control the deletion of
2347 chains.
2348 (df_reg_chain_unlink): Take care not to delete non existent refs.
2349 (df_ref_remove): Changed call to df_reg_chain_unlink.
2350 (df_ref_chain_delete_du_chain, df_ref_chain_delete,
2351 df_mw_hardreg_chain_delete): New function
2352 (df_insn_delete): Now calls df_ref_chain_delete_du_chain,
2353 df_ref_chain_delete, df_mw_hardreg_chain_delete.
2354 (df_bb_delete): Now calls df_ref_chain_delete_du_chain,
2355 df_ref_chain_delete.
2356 (df_insn_rescan): Now supports DF_NO_INSN_RESCAN and added
2357 debugging.
2358 (df_ref_verify): Added code to ignore refs from notes in the table
2359 of refs.
2360 (df_bb_verify, df_exit_block_bitmap_verify,
2361 df_entry_block_bitmap_verify, df_verify_blocks): Made it possible
2362 to abort closer to source of problem.
2363 (df_verify_blocks): Removed dflow parameter. * df-core.c
2364 (df_insn_uid_debug, df_ref_debug): Fixed debugging. *
2365 df-problems.c (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info,
2366 df_ur_bb_info, df_live_bb_info, df_urec_bb_info): Made tolerant of
2367 newly added basic blocks.
2368 (df_chain_alloc): Tolerant of missing refs in structure.
2369 (df_chain_insn_reset, df_chain_bb_reset, df_chain_remove_problem):
2370 Deleted function.
2371 (df_chain_alloc): New function.
2372 (df_chain_reset): Now just calls df_chain_remove_problem.
2373 * df.h: (DF_NO_REGS_EVER_LIVE): New flag.
2375 2006-11-17 Kenneth Zadeck <zadeck@naturalbridge.com>
2377 * fwprop.c Removed bad version.
2378 * tree-ssa-pre.c (init_pre): Added parameter to post_order_compute.
2380 2006-11-15 Seongbae Park <seongbae.park@gmail.com>
2382 * df-scan.c (df_insn_refs_collect): Code cleanup
2383 for COND_EXEC handling.
2384 (df_need_static_chain_reg): New function.
2385 (df_get_entry_block_def_set): Check and add the static chain register.
2386 * ifcvt.c (if_convert): Don't ignore the return value
2387 of find_if_header.
2390 2006-11-14 Seongbae Park <seongbae.park@gmail.com>
2392 * function.c (thread_prologue_and_epilogue_insns):
2393 Update regs_ever_live during df scanning.
2395 2006-11-14 Seongbae Park <seongbae.park@gmail.com>
2397 * dbgcnt.c, dbgcnt.h: Added missing copyright notice. Now uses
2398 dbgcnt.def for the list of counters.
2399 * Makefile.in: Add missing dbgcnt.h header file dependencies.
2400 * dbgcnt.def: New file.
2402 2006-11-14 Seongbae Park <seongbae.park@gmail.com>
2404 * tree-tailcall.c (execute_tail_recursion): Added dbg_cnt().
2405 * df-scan.c (df_mw_hardreg_find_hardreg, df_get_conditional_uses,
2406 df_get_call_refs):
2407 New function.
2408 (df_refs_add_to_chains): Don't add duplicate mw_hardreg.
2409 (df_ins_refs_collect): Refactored to use df_get_conditional_uses
2410 and df_get_call_refs.
2411 (df_insn_refs_verify): Find the matching mw_hardreg.
2412 * dbgcnt.c (dbg_cnt_process_opt): Fix a bug handling multiple
2413 counters. Add a new debug counter tail_call.
2414 * dbgcnt.h (enum debug_counter): Added a new counter tail_call.
2415 * calls.c (expand_call): Check dbg_cnt(tail_call).
2416 * df_problems.c (df_create_unused_note, df_ri_bb_compute):
2417 Handle NULL LOC case.
2418 * dce.c (init_dce): Add a debug dump.
2421 2006-11-14 Paolo Bonzini <bonzini@gnu.org>
2423 Merge from mainline:
2425 2006-11-14 Paolo Bonzini <bonzini@gnu.org>
2427 PR rtl-optimization/29798
2429 * fwprop.c (use_killed_between): Check that DEF_INSN dominates
2430 TARGET_INSN before any other check.
2431 (fwprop_init): Always calculate dominators.
2432 (fwprop_done): Always free them.
2434 2006-11-13 Seongbae Park <seongbae.park@gmail.com>
2435 Kenneth Zadeck <zadeck@naturalbridge.com>
2437 * tree-pass.h (TODO_df_verify_scan): New flag.
2438 * auto-inc-def.c (find_inc): Added code to check for case where
2439 output of inc is not overwritten by mem to be combined.
2440 * df-scan.c (df_scan_set_bb_info): Now increases the size of the
2441 array if necessary.
2442 (df_scan_blocks): Added flag to avoid recomputing regs_ever_live.
2443 (df_insn_rescan): Fixed missing case for rescanning.
2444 (df_insn_refs_collect): Special case for sibling calls. Changed
2445 to not set up loc field with address of regno_reg_rtx element.
2446 (df_entry_block_defs_collect, df_exit_block_uses_collect,
2447 df_bb_refs_collect): Changed to not set up loc field with address
2448 of regno_reg_rtx element.
2449 (df_bb_refs_record): Removed dflow parameter and added scan_insn
2450 parameter. Changed call to df_bb_refs_record.
2451 (df_compute_regs_ever_live): New function.
2452 (df_reg_chain_unmark): Made to accept NULL blocks parameter.
2453 (df_ref_chain_unmark): New function.
2454 (df_ref_verify): Added abort_if_fail parameter.
2455 (df_insn_refs_verify): Added abort_if_fail and return_refs
2456 parameter and changed function to return bool. Added code to
2457 unmark chains.
2458 (df_bb_refs_verify): Added abort_if_fail parameter and now returns
2459 nothing.
2460 (df_bb_verify): Changed to expect subroutines to abort.
2461 (df_verify_blocks): Now accepts NULL blocks parameter.
2462 * ifcvt.c (if_convert): Added more to dump_files.
2463 * (pass_rtl_ifcvt, pass_if_after_combine, pass_if_after_reload):
2464 added TODO_df_verify_scan.
2465 * opts.c (command_handle_option): New flag OPT_fdbg_cnt_
2466 * recog.c (confirm_change_group): Fixed updating of df scanning.
2467 * function.c (thread_prologue_and_epilogue_insns):
2468 Pass DF_NO_REGS_EVER_LIVE in df_init, and
2469 call df_compute_regs_ever_live after prologue is generated.
2470 * df.h (enum df_ref_flags): Added DF_REF_ARTIFICIAL.
2471 (enum df_changeable_flags): Added DF_NO_REGS_EVER_LIVE.
2472 (DF_REF_IS_ARTIFICIAL): Added checking for the flag DF_REF_ARTIFICIAL.
2473 * cfgcleanup.c: Fixed typo in comment.
2474 * common.opt: New flag -fdbg-cnt=
2475 * combine.c (try_combine): Added calls to keep df_scanning up to
2476 date.
2477 (pass_combine): Added TODO_df_verify_scan.
2478 * Makefile.in: New gcc object file dbgcnt.o
2479 * passes.c (execute_todo): Added support for TODO_df_verify_scan.
2480 * config/ia64/ia64.c (ia64_split_return_addr_rtx): Finalize
2481 the frame layout early.
2482 (ia64_expand_prologue): Pass DF_NO_REGS_EVER_LIVE to df_init().
2483 * cfgrtl.c (rtl_delete_block, rtl_merge_blocks,
2484 cfg_layout_merge_blocks): Added debugging.
2485 * dbgcnt.c, dbgcnt.h: New files
2486 * dce.c (delete_unmarked_insns): Use dbg_cnt.
2487 (delete_insn_p): Do not delete unspecs.
2489 2006-11-10 Seongbae Park <seongbae.park@gmail.com>
2491 * fwprop.c (forward_propagate_into): Use DF_REF_IS_ARTIFICIAL()
2492 instead of DF_REF_ARTIFICIAL flag.
2493 * df-scan.c (df_ref_record, df_def_record_1): Remove record_live
2494 (df_get_exit_block_use_set, df_get_entry_block_def_set):
2495 Renamed from df_get_{exit_block_uses,entry_block_defs}.
2496 (df_compute_regs_ever_live, df_ref_chain_change_bb,
2497 df_ref_is_record_live, df_reg_chain_unmark, df_ref_chain_free):
2498 New functions.
2499 (df_reg_chains): New structure
2500 (df_ref_add_to_chains):
2501 (df_scan_blocks): Add call to df_compute_regs_ever_live().
2502 (df_ref_create): Remove record_live, and replace DF_REF_ARTIFICIAL
2503 flag use with DF_REF_IS_ARTIFICIAL () macro.
2504 (df_insn_rescan): Avoid marking blocks dirty if nothing changed.
2505 (df_insn_change_bb): Refactored to use df_ref_change_bb.
2506 (df_ref_is_equal): Now ignores DF_REF_MARKER flag.
2507 (df_ref_chain_find_ref, df_reg_chain_find_reg): Fix the order of
2508 parameters to the evaluation function.
2509 (df_ref_find_chains): Avoid early evaluation of certain fields.
2510 (df_ref_add_to_chains): Remove update to regs_ever_live.
2511 (df_refs_add_to_chains): Use DF_REF_NEXT_REF macro.
2512 (df_ref_record): Remove DF_REF_RECORD_LIVE.
2513 (df_insn_refs_record): Now takes the reference list to be added as
2514 an argument.
2515 (df_bb_refs_record): Handles entry and exit block cases.
2516 (df_bb_refs_collect): Removed DF_REF_ARTIFICIAL.
2517 (df_refs_record): Scan entry and exit blocks first.
2518 (df_ref_verify): Takes reg_chain cache as an argument,
2519 verifies hardreg chain.
2520 (df_exit_block_bitmap_verify): Renamed from df_exit_block_verify
2521 (df_entry-block_bitmap_verify): Renamed from df_entry_block_verify
2522 (df_verify_blocks): Implement regchain cache. Assert immediately
2523 when verification fails in any subfunctions.
2524 * df.h (enum df_ref_flags): Remove DF_REF_ARTIFICIAL and renumber the
2525 enum.
2526 (DF_REF_IS_ARTIFICIAL, DF_REF_MARK, DF_REF_UNMARK, DF_REF_IS_MARKED,
2527 DF_INSN_UID_SAFE_GET): New macros:
2530 2006-11-08 Kenneth Zadeck <zadeck@naturalbridge.com>
2532 * auto-inc-dec.c (attempt_change): Added code to properly maintain
2533 reg_next_inc_use when inc insns are deleted.
2534 (merge_in_block): Added debugging and changed to skip deleted
2535 instructions.
2536 (scan_dflow): Removed variable.
2537 * df-scan.c (df_scan_alloc): Always processes entire function.
2538 (df_scan_free): Removed df->blocks_to_scan.
2539 (df_scan_blocks): Removed blocks_parameter. Now scan entire
2540 function.
2541 (df_insn_rescan, df_insn_change_bb): Renamed df_mark_bb_dirty to
2542 df_set_bb_dirty.
2543 * df.h (blocks_to_scan): Removed variable.
2544 * df-core.c (df_analyze): Add call to df_scan_alloc. Removed
2545 df->blocks_to_scan.
2546 (df_get_bb_dirty): New function.
2547 (df_mark_bb_dirty): Renamed to df_set_bb_dirty.
2548 (df_compact_blocks): Removed df->blocks_to_scan.
2549 (df_bb_replace): Added check to make sure there was no block at
2550 old_index and fixed updating bugs.
2551 * ifcvt.c (cond_exec_process_if_block,
2552 noce_process_if_block, cond_move_process_if_block,
2553 process_if_block, merge_if_block, find_if_header,
2554 find_cond_trap, find_if_case_1, find_if_case_2, if_convert):
2555 Removed modified variable.
2556 (find_if_header, find_cond_trap, find_if_case_1, find_if_case_2,
2557 if_convert): Replaced BB_DIRTY with df_set_bb_dirty and
2558 df_get_bb_dirty.
2559 * recog.c (confirm_change_group): Ditto.
2560 * emit_rtl (remove_insn,, reorder_insns, emit_insn_after_1): Ditto.
2561 * cfgcleanup.c (try_forward_edges, try_crossjump_to_edge,
2562 merge_blocks_move_predecessor_nojumps, try_crossjump_bb): Ditto.
2563 * modulo-sched.c (sms_schedule): Ditto.
2564 * cfgrtl.c (rtl_split_block, rtl_redirect_edge_and_branch,
2565 rtl_redirect_edge_and_branch_force, purge_dead_edges,
2566 cfg_layout_redirect_edge_and_branch): Ditto.
2567 * basic_block.h (BB_DIRTY): Removed.
2570 2006-11-07 Kenneth Zadeck <zadeck@naturalbridge.com>
2572 * cfg.c (compact_blocks): Make df aware when blocks are moved around.
2573 * auto-inc-dec.c (attempt_change): Removed explicit df updating.
2574 * ifcvt.c (cond_exec_process_if_block,
2575 noce_mem_write_may_trap_or_fault_p, noce_process_if_block,
2576 cond_move_process_if_block, process_if_block, find_if_header):
2577 Removed unused df parameter.
2578 (merge_if_block, find_cond_trap, find_if_case_1, find_if_case_2):
2579 Removed explicit df updating.
2580 (if_convert): Rearranged calls to df.
2581 (struct tree_opt_pass pass_rtl_ifcvt, pass_if_after_combine,
2582 pass_if_after_reload): Added TODO_verify_flow.
2583 * recog.c (delete_insn_chain_and_flow): Deleted function.
2584 (peephole2_optimize): Removed unused dataflow problem and variable
2585 and delete explicit df updating calls.
2586 (pass_split_before_sched2): Added TODO_verify_flow.
2587 * emit_rtl (add_insn_after, add_insn_before, remove_insn,
2588 reorder_insns, emit_insn_after_1): Added explicit updating of df.
2589 (set_insn_deleted): New function.
2590 * loop_invariant.c (invariant_table_size, invariant_table): New
2591 variables.
2592 (check_invariant_table_size): New function.
2593 (invariant_for_use, find_defs, check_dependency,
2594 find_invariant_insn, free_inv_motion_data, move_loop_invariants):
2595 Replaced DF_REF_DATA with invariant_table.
2596 * loop-iv.c (clean_slate, iv_ref_table_size, iv_ref_table): New
2597 variables.
2598 (check_iv_ref_table_size): New function.
2599 (clear_iv_info, iv_analysis_loop_init, record_iv, iv_analyze_def,
2600 iv_analysis_done): Replaced DF_REF_DATA with iv_ref_table.
2601 * cfglayout.c (fixup_reorder_chain): Now uses compact_blocks.
2602 * rtl.h (SET_INSN_DELETED): now calls set_insn_deleted.
2603 * Makefile.in: (emit-rtl.o): Now dependent on df.h.
2604 * sched-rgn.c (pass_sched, pass_sched2): Added TODO_verify_flow.
2605 * cfgrtl.c (rtl_delete_block, update_bb_for_insn,
2606 rtl_merge_blocks, try_redirect_by_replacing_jump,
2607 cfg_layout_merge_blocks): Added explicit updating of df.
2608 * dce.c (delete_unmarked_insns): Removed df_delete parameter and
2609 explicit updating of df info.
2610 (rest_of_handle_dce, rest_of_handle_dse): Added call to
2611 df_remove_problem.
2612 (fast_dce, fast_dce, rest_of_handle_fast_dce, run_fast_df_dce):
2613 Removed df_delete parameter.
2614 * df-scan.c (df_scan_free_bb_info): Changed call.
2615 (df_scan_alloc, df_scan_free): Added setting of out_of_date_transfer_functions.
2616 (df_problem problem_SCAN): Added problem removal function.
2617 (df_scan_blocks): Added calls to df_refs_delete and df_bb_delete.
2618 (df_insn_create_insn_record): Added call to df_grow_insn_info.
2619 (df_insn_refs_delete): Renamed to df_insn_delete and removed dflow
2620 parameter.
2621 (df_bb_refs_delete): Renamed to df_bb_delete and removed dflow
2622 parameter.
2623 (df_refs_delete): Deleted.
2624 (df_insn_rescan, df_insn_change_bb): New function.
2625 (df_ref_create_structure): Removed DF_REF_DATA.
2626 * df-core.c (df_add_problem): Changed to use new form of problem
2627 dependency.
2628 (df_remove_problem): New function.
2629 (df_set_blocks): Does a better job of updating the proper blocks.
2630 (df_delete_basic_block): Removed df parameter and checks to see if
2631 block already had infomation.
2632 (df_get_bb_info): Returns NULL if no info was there.
2633 (df_set_bb_info): Checks to make sure problem block information.
2634 (df_mark_solutions_dirty, df_mark_bb_dirty, df_compact_blocks,
2635 df_bb_replace): New functions.
2636 * df.h (df_remove_problem_function): New typedef.
2637 (df_dependent_problem_function): Deleted typedef.
2638 (df_problem): Added remove_problem_fun and dependent_problem and
2639 deleted dependent_problem_fun.
2640 (df_ref.data): Removed.
2641 (df.out_of_date_transfer_functions, df.solutions_dirty): New
2642 variables.
2643 (DF_REF_DATA): Deleted macro.
2644 * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
2645 problem_LIVE, problem_UREC, problem_CHAIN, problem_RI): Added
2646 problem removal function and changed dependent_function.
2648 2006-11-04 Kenneth Zadeck <zadeck@naturalbridge.com>
2650 * df-scan.c (df_scan_start_dump): Changed print routine to print
2651 hard register names.
2652 * df-core.c (df_print_regset): New function.
2653 * global.c (global_alloc): Do not recompute register infomation
2654 when recomputing dataflow.
2655 * df.h (DF_RI_NO_UPDATE): New flag.
2656 * df-problems.c (df_lr_top_dump, df_lr_bottom_dump,
2657 df_ur_top_dump, df_ur_bottom_dump, df_live_top_dump,
2658 df_live_bottom_dump, df_urec_top_dump, df_urec_bottom_dump):
2659 Changed to use df_print_regset.
2660 (df_ri_alloc, df_ri_compute): Changed to not update if
2661 DF_RI_NO_UPDATE flag.
2662 * cfgrtl.c (print_rtl_with_bb): Changed to print preds and
2663 successor blocks in dump file.
2665 2006-11-03 Seongbae Park <seongbae.park@gmail.com>
2667 * global.c (global_conflicts): Use df_urec_get_live_at_top ()
2668 instead of DF_RA_LIVE_IN ().
2669 * function.h: Add a declaration for current_function_assembler_name().
2670 * function.c (current_function_assembler_name): New function.
2671 (thread_prologue_and_epilogue_insns): Insert rtx_USE when profiling.
2672 * df.h (DF_REF_FLAGS_CLEAR): New macro.
2673 (df_urec_get_live_at_top): New function declaration.
2674 * df-problems.c (df_urec_get_live_at_top): New function.
2676 2006-10-28 Seongbae Park <seongbae.park@gmail.com>
2678 * df.h (df_rescan_blocks): Renamed to df_scan_blocks.
2679 * df-core.c (df_analyze): Use df_scan_blocks() instead.
2680 * ifcvt.c (if_convert): Use df_scan_blocks() instead.
2681 * df-scan.c
2682 (df_ref_record, df_def_record_1, df_defs_record, df_uses_record):
2683 They are made side-effect free.
2684 (df_ref_find_chains, df_ref_add_to_chains, df_refs_add_to_chains,
2685 df_ref_is_equal, df_ref_chain_find_ref, df_reg_chain_find_ref,
2686 df_scan_start_block, df_check_and_grow_ref_info,
2687 df_insn_refs_collect, df_bb_refs_collect,
2688 df_get_entry_block_defs, df_get_exit_block_uses,
2689 df_ref_verify, df_refs_verified, df_ref_chain_verify,
2690 df_reg_chain_clear_verified, df_bb_refs_verify,
2691 df_exit_block_verify, df_entry_block_verify, df_verify_blocks):
2692 New functions.
2693 (df_ref_create_structure): Initializes the fields
2694 of df_ref and does not connect it to various chains.
2695 (df_insn_refs_record, df_bb_refs_record, df_record_entry_block_defs,
2696 df_record_exit_block_uses, df_refs_record):
2697 Separate side-effects (adding chains and updating regs_ever_live)
2698 from traversing and finding the refs in the insn/basic block.
2699 (df_ref_create): Separate calls for creating the ref and add it
2700 to the chains.
2702 2006-10-24 Paolo Bonzini <bonzinI@gnu.rg>
2704 * ddg.c (add_deps_for_def, add_deps_for_use): Use accessor macros.
2705 * df.h (DF_REF_STRIPPED, DF_SUBREGS): Remove.
2706 * df-core.c: Don't document scanning flags.
2707 * df-scan.c (df_ref_record): Always behave as if DF_SUBREGS was set.
2708 * df-problems.c (df_lr_bb_local_compute): Strip SUBREGs with
2709 DF_REF_REAL_REG.
2710 (df_chain_start_dump): Don't dump DF_REF_STRIPPED.
2711 (df_create_unused_note, df_ri_bb_compute): Don't "inline"
2712 DF_REF_REAL_LOC.
2713 * fwprop.c (fwprop_init): Do not pass DF_SUBREGS.
2714 * loop-invariant.c (record_use): Don't strip SUBREGs.
2715 (record_uses): Do it here with DF_REF_REAL_LOC.
2716 * loop-iv.c (iv_analyze_def): Only allow REGs. Replace previous
2717 way to check for SUBREGs with an assertion.
2719 2006-10-19 Kenneth Zadeck <zadeck@naturalbridge.com>
2721 * sched-ebb.c (schedule_ebbs): Changed flags to df_init.
2722 * fwprop.c (use_killed_between): Changed to use proper macros.
2723 (All_uses_available_at, try_fwprop_subst): Added support for
2724 separated reg_equiv/equal df_refs.
2725 (fwprop_init): Changed flags to df_init.
2726 (fwprop, fwprop_addr): Changed call to df_reorganize_refs to
2727 df_maybe_reorganize_use_refs.
2728 * see.c (see_initialize_data_structures): Changed flags to
2729 df_init.
2730 * ddg.c (build_inter_loop_deps): Now skips refs with
2731 reg_equal/equiv notes.
2732 * modulo-sched.c (sms_schedule): Changed flags to df_init.
2733 * web.c (union_defs): Added support for separated reg_equiv/equal
2734 df_refs.
2735 (web_main): Changed flags to df_init and changed call to
2736 df_reorganize_refs to df_maybe_reorganize_(use|def)_refs.
2737 * loop_invariant.c (check_dependency): New function split out from
2738 check_dependencies.
2739 (record_uses): Added support for separated reg_equiv/equal
2740 df_refs.
2741 (move_loop_invariants): Changed flags to df_init.
2742 * loop-iv.c (iv_analysis_loop_init): Changed flags to df_init.
2743 (latch_dominating_def): Changed to use proper macros.
2744 * combine.c (create_log_links): Ditto.
2745 * sched-rgn.c (schedule_insns): Changed flags to df_init.
2746 * dce.c (dce_process_block): Changed to use proper macros.
2747 * df.h (df_insn_info.eq_uses): New field.
2748 (DF_EQUIV_NOTES): Deleted permanent_flag.
2749 (DF_EQ_NOTES): New changeable_flag.
2750 (df_ref_info.regs_size, df_ref_info.regs_inited): Moved to df
2751 structure.
2752 (df.def_regs, df.use_regs, df.eq_use_regs): New fields.
2753 (df_ref_info.begin): Moved from df_reg_info.
2754 (DF_DEFS_COUNT, DF_DEFS_BEGIN, DF_DEFS_COUNT, DF_DEFS_BEGIN,
2755 DF_REG_EQ_USE_GET, DF_REG_EQ_USE_CHAIN, DF_REG_EQ_USE_COUNT): New
2756 macros.
2757 (DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_CHAIN, DF_REG_DEF_COUNT,
2758 DF_REG_USE_GET, DF_REG_USE_CHAIN, DF_REG_USE_COUNT): Redefined.
2759 (df_reorganize_refs): Split into df_maybe_reorganize_use_refs and
2760 df_maybe_reorganize_def_refs.
2761 (df_ref_info.refs_organized): Split into refs_organized_alone and
2762 refs_organized_with_eq_uses.
2763 * df-problems.c (df_ru_bb_local_compute_process_def,
2764 df_ru_local_compute, df_ru_confluence_n, df_ru_transfer_function,
2765 df_ru_start_dump, df_rd_bb_local_compute_process_def,
2766 df_rd_local_compute, df_rd_confluence_n, df_rd_transfer_function,
2767 df_rd_start_dump, df_chain_alloc, df_chain_insn_reset,
2768 df_chain_create_bb_process_use, df_chain_create_bb,
2769 df_chain_start_dump): Changed to use proper macros.
2770 (df_ru_bb_local_compute, df_chain_insn_reset, df_chain_create_bb):
2771 Added support for separated reg_equiv/equal df_refs.
2772 (df_ru_local_compute, df_rd_local_compute, df_chain_alloc): Split
2773 into df_maybe_reorganize_use_refs and
2774 df_maybe_reorganize_def_refs.
2775 * df-scan.c (df_grow_reg_info, df_rescan_blocks, df_ref_create):
2776 Changed to process all data structures dependent on number of
2777 registers at once.
2778 (df_scan_free_internal, df_scan_alloc): Changed to process new
2779 data structures properly.
2780 (df_rescan_blocks): Split into refs_organized_alone and
2781 refs_organized_with_eq_uses.
2782 (df_reg_chain_unlink): Remove decrement of bitmap_size fields.
2783 (df_reg_chain_unlink, df_insn_refs_delete,
2784 df_ref_create_structure): Changed to use proper macros.
2785 (df_reg_chain_unlink, df_ref_remove, df_insn_refs_delete,
2786 df_reorganize_refs, df_ref_create_structure, df_insn_refs_record):
2787 Added support for separated reg_equiv/equal df_refs.
2788 (df_maybe_reorganize_use_refs, df_maybe_reorganize_def_refs): New
2789 functions.
2790 * df-core.c (df_bb_regno_last_use_find,
2791 df_bb_regno_first_def_find, df_bb_regno_last_def_find,
2792 df_insn_regno_def_p, df_find_def, df_find_use, df_dump_start,
2793 df_regno_debug): Changed to use proper macros.
2794 (df_find_use, df_insn_uid_debug, df_insn_uid_debug,
2795 df_insn_debug_regno, df_insn_debug_regno): Added support for
2796 separated reg_equiv/equal df_refs.
2799 2006-10-18 Paolo Bonzini <bonzini@gnu.org>
2801 * stack-ptr-mod.c (pass_stack_ptr_mod): Don't set pass name.
2802 * final.c (pass_no_new_pseudos): Don't set pass name.
2804 * fwprop.c (all_uses_available_at): Use DF_REF_REG.
2805 (forward_propagate_into): Discard artificial defs/uses.
2806 (pass_rtl_fwprop_addr): Add TODO_df_finish.
2808 2006-10-03 Richard Sandiford <richard@codesourcery.com>
2810 * cselib.h (cselib_discard_hook): Declare.
2811 * cselib.c (cselib_discard_hook): New variable.
2812 (remove_useless_values): Call it before freeing useless values.
2813 * dce.c (base_address): New union.
2814 (store_base_info): Change the type of the base field from "rtx"
2815 to "union base_address".
2816 (local_invariant_stores, local_value_stores): New variables.
2817 (store_base_eq): Split into...
2818 (invariant_store_base_eq, value_store_base_eq): ...these new functions.
2819 (store_base_hash): Split into...
2820 (invariant_store_base_hash, value_store_base_hash): ...these
2821 new functions.
2822 (store_base_del): Fix formatting.
2823 (init_store_group): Split into...
2824 (init_invariant_store_group, init_value_store_group): ...these
2825 new functions.
2826 (init_dse): Use init_invariant_store_group instead of init_store_group.
2827 (get_canonical_address): Delete.
2828 (add_store_offset): Change the type of BASE from "rtx" to "union
2829 base_address *".
2830 (record_store): Remove the GROUP parameter. Don't call
2831 get_canonical_address. Store the base in a "union base_address" and
2832 add stores to either local_invariant_stores or local_value_stores.
2833 (record_stores): Remove the GROUP parameter and adjust the calls
2834 to record_store.
2835 (store_base_local): Add a parameter that indicates whether stores
2836 are invariant or cselib_vals.
2837 (invariant_store_base_local): New function.
2838 (value_store_base_local): Likewise.
2839 (value_store_base_useless): Likewise.
2840 (remove_useless_values): Likewise.
2841 (store_base_prune_needed): Adjust for store_base_info changes.
2842 (prescan_insns_for_dse): Remove the local group variable and use
2843 local_invariant_stores and local_value_stores instead. Adjust the
2844 call to record_stores. Use remove_useless_values as the
2845 cselib_discard_hook while processing a basic block.
2847 2006-10-03 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
2849 * sched-ebb.c (ebb_head, ebb_tail, ebb_head_or_leaf_p): Removed.
2850 (begin_schedule_ready, schedule_ebb, ebb_head_or_leaf_p): Remove
2851 unnecessary argument, update all callers.
2852 (ebb_sched_info): Update initializer.
2853 (df): New static variable to keep dataflow info.
2854 (compute_jump_reg_dependencies): Use it instead of glat.
2855 * haifa-sched.c (glat_start, glat_end, glat_size, init_glat,
2856 init_glat1, free_glat): Removed.
2857 (generate_recovery_code, begin_speculative_block,
2858 add_to_speculative_block, init_before_recovery,
2859 create_recovery_block, create_check_block_twin,
2860 schedule_block, sched_init, add_block): Remove
2861 unnecessary argument, update all callers.
2862 * modulo-sched.c (sms_sched_info): Update initializer.
2863 (sms_schedule): Update call to sched_init ().
2864 * sched-int.h (struct sched_info): Remove unnecessary argument and
2865 update all callers of field 'begin_schedule_ready'. Remove field
2866 'region_head_or_leaf_p'.
2867 (glat_start, glat_end): Remove prototypes.
2868 (enum SCHED_FLAGS): Remove USE_GLAT, DETACH_LIFE_INFO. Use NEW_BBS
2869 instead.
2870 (schedule_block, sched_init, add_block, schedule_region): Update
2871 prototypes.
2872 * sched-rgn.c (df, not_in_df): New static variables.
2873 (check_live_1, update_live_1, add_block1): Use them instead of glat.
2874 (begin_schedule_read, schedule_region): Remove unnecessary argument,
2875 update all callers.
2876 (region_head_or_leaf_p): Remove.
2877 (region_sched_info): Update initializer.
2878 * config/ia64/ia64.c (set_sched_flags): Use NEW_BBS instead of
2879 DETACH_LIFE_INFO.
2881 2006-10-01 Kenneth Zadeck <zadeck@naturalbridge.com>
2883 * df-scan.c (df_ref_record, df_insn_refs_record,
2884 df_bb_refs_record, df_refs_record, df_record_entry_block_defs):
2885 Removed DF_HARD_REGS flag.
2886 * df-core.c (comments): Ditto.
2887 * df.h (permanent_flags.DF_HARD_REFS): Removed.
2888 (changeable_flags.DF_NO_HARD_REGS): Added.
2889 * df-problems.c (df_rd_bb_local_compute_process_def,
2890 df_rd_bb_local_compute, df_chain_create_bb_process_use,
2891 df_chain_create_bb): Added support for DF_NO_HARD_REGS flag.
2892 * dce.c (init_dce): Removed DF_HARD_REFS flag.
2893 * reg_stack.c (reg_to_stack): Ditto.
2894 * sched_rgn.c (sched_insns): Ditto.
2895 * regrename.c (regrename_optimize): Ditto.
2896 * sched_ebb.c (schedule_ebbs): Ditto.
2897 * fwprop.c (fwprop_init): Ditto.
2898 * see.c (see_initialize_data_structures): Ditto.
2899 * auto_inc_dec.c (rest_of_handle_auto_inc_dec): Ditto.
2900 * mode-switching.c (optimize_mode_switching): Ditto.
2901 * modulo-sched.c (sms_schedule): Ditto.
2902 * ifcvt.c (if_convert): Ditto.
2903 * recog.c (peephole2_optimize): Ditto.
2904 * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments):
2905 Ditto.
2906 * local_alloc.c (rest_of_handle_local_alloc): Ditto.
2907 * function.c (thread_prologue_and_epilogue_insns): Ditto.
2908 * rtl_factoring.c (rtl_sequabstr): Ditto.
2909 * bt_load.c (branch_target_load_optimize): Ditto.
2910 * loop_invariant.c (move_loop_invariants): Ditto.
2911 * subregs-init.c (initialize_uninitialized_subregs): Ditto.
2912 * loop-iv.c (iv_analysis_loop_init): Ditto.
2913 * combine.c (rest_of_handle_combine): Ditto.
2914 * web.c (web_main): Added DF_NO_HARD_REGS flag and changed loops
2915 to skip over hard regs.
2916 * reorg.c (dbr_schedule): Removed extra flags from
2917 df_*_add_problems calls.
2919 2006-09-30 Kenneth Zadeck <zadeck@naturalbridge.com>
2921 * df-scan.c (problem_SCAN): Removed flags.
2922 (df_scan_add_problem): Ditto.
2923 (df_ref_record, df_insn_refs_record, df_bb_refs_record,
2924 df_refs_record, df_record_entry_block_defs,
2925 df_record_exit_block_uses ): Moved flags to df structure.
2926 * df-core.c (df_init): Added permanent_flags and changeable_flags.
2927 (df_add_problem): Removed flags parameter.
2928 (df_set_flags, df_clear_flags): Changed processing of flags. *
2929 df.h (df_dependent_problem_function, struct df_problem): Removed
2930 flags.
2931 (DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS, DF_DU_CHAIN,
2932 DF_UD_CHAIN, DF_RI_LIFE, DF_RI_SETJMP): Changed to be fields in
2933 df_permanent_flags.
2934 (DF_LR_RUN_DCE): Changed to be fields in df_changeable_flags.
2935 (df_init, df_add_problem, df_set_flags, df_clear_flags,
2936 df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
2937 df_ur_add_problem, df_live_add_problem, df_urec_add_problem,
2938 df_chain_add_problem, df_ri_add_problem, df_scan_add_problem):
2939 Changed flag parameters.
2940 * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
2941 problem_LIVE, problem_UREC, problem_CHAIN, problem_RI): Removed
2942 changeable flags field.
2943 (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
2944 df_ur_add_problem, df_live_add_problem, df_urec_add_problem,
2945 df_chain_add_problem, df_ri_add_problem): Removed flags parameter.
2946 (df_lr_local_finalize, df_chain_alloc, df_chain_insn_reset,
2947 df_chain_bb_reset, df_chain_create_bb_process_use,
2948 df_chain_start_dump, df_ri_alloc, df_ri_bb_compute, df_ri_compute,
2949 df_ri_free): Changed location of flags.
2950 * dce.c (init_dce): Moved flags from df_*_add_problem to df_init.
2951 (fast_dce): Changed parameters to df_set_flags and df_clear_flags.
2952 * reg_stack.c (reg_to_stack): Moved flags from df_*_add_problem to df_init.
2953 * sched_rgn.c (sched_insns): Ditto.
2954 * regrename.c (regrename_optimize): Ditto.
2955 * sched_ebb.c (schedule_ebbs): Ditto.
2956 * fwprop.c (fwprop_init): Ditto.
2957 * see.c (see_initialize_data_structures): Ditto.
2958 * auto_inc_dec.c (rest_of_handle_auto_inc_dec): Ditto.
2959 * mode-switching.c (optimize_mode_switching): Ditto.
2960 * modulo-sched.c (sms_schedule): Ditto.
2961 * web.c (web_main): Ditto.
2962 * ifcvt.c (if_convert): Ditto.
2963 * recog.c (peephole2_optimize): Ditto.
2964 * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments):
2965 Ditto.
2966 * local_alloc.c (rest_of_handle_local_alloc): Ditto.
2967 * function.c (thread_prologue_and_epilogue_insns): Ditto.
2968 * rtl_factoring.c (rtl_sequabstr): Ditto.
2969 * bt_load.c (branch_target_load_optimize): Ditto.
2970 * loop_invariant.c (move_loop_invariants): Ditto.
2971 * subregs-init.c (initialize_uninitialized_subregs): Ditto.
2972 * loop-iv.c (iv_analysis_loop_init): Ditto.
2973 * combine.c (rest_of_handle_combine): Ditto.
2975 2006-08-04 Kenneth Zadeck <zadeck@naturalbridge.com>
2977 * tree-pass.h (pass_rtl_dse): Split into pass_rtl_dse1,
2978 pass_rtl_dse2, pass_rtl_dse3.
2979 * passes.c (init_optimization_passes): Ditto.
2980 * timevar.def (TV_DSE): Split into TV_DSE1, TV_DSE2, and TV_DSE3.
2981 (TV_THREAD_PROLOGUE_AND_EPILOGUE): Made text shorter to improve
2982 readability.
2983 * df.core.c (df_init, df_finish1, df_analyze_problem, df_analyze):
2984 Made postorder and instance variable of df.
2985 (df_finish1): Made tolerant of being passed NULL instance.
2986 (df_get_n_blocks, df_get_postorder): New functions.
2987 * cfganal (post_order_compute): Added delete_unreachable
2988 parameter and code to delete unreachable blocks.
2989 * local_alloc (rest_of_handle_local_alloc): Removed unnecessary
2990 call to delete_unreachable_blocks.
2991 * df.h (postorder, n_blocks): New instance variables.
2992 (df_get_n_blocks, df_get_postorder): New functions.
2993 * sched-rgn.c (extend_rgns): Added extra parameter to
2994 post_order_compute.
2995 * basic-block.h (post_order_compute): Ditto.
2996 * dce.c (fast_dce, init_rs_dflow): Now uses postorder and n_blocks from df.
2997 (pass_rtl_dse): Split into pass_rtl_dse1,
2998 pass_rtl_dse2, pass_rtl_dse3.
2999 * sched-ebb.c (schedule-ebbs): Added return value.
3000 * haifa-sched.c (add_block): Made df parameter unused and fixed
3001 incorrect assert.
3003 2006-08-01 Kenneth Zadeck <zadeck@naturalbridge.com>
3005 * sched-ebb.c (sched_ebbs): Now returns the df instance created.
3006 * rtl.h (sched_ebbs): Ditto.
3007 * recog.c (split_all_insns): Made public again so it can be called
3008 from ia64.c
3009 * rtl.h (split_all_insns): Ditto.
3010 * df-problems.c (df_ri_compute): Removed call to non existent
3011 function.
3012 * config/ia64/ia64.c (emit_predicate_relation_info): Added df
3013 parameter and removed rotten ref to global instance.
3014 (ia64_reorg): Added local instance of df and removed calls to non
3015 existent flow.c.
3017 2006-07-26 Kenneth Zadeck <zadeck@naturalbridge.com>
3019 * regrename.c (regrename_optimize): Renamed df_clrur to df_live
3020 and removed df_finish call.
3021 (pass_regrename): Added TODO_df_finish flag.
3022 * sched-ebb.c (schedule_ebbs): Renamed df_clrur to df_live
3023 and removed df_finish call.
3024 * fwprop.c (fwprop_done): Removed df_finish call.
3025 (pass_rtl_fwprop): Added TODO_df_finish flag.
3026 * see.c (see_commit_changes): Removed unnecessary set to df.
3027 * postreload.c (rest_of_handle_postreload): Removed df_finish call.
3028 (pass_postreload_cse): Added TODO_df_finish flag.
3029 * tree-pass.h (TODO_df_finish): Added.
3030 * cfg.c (dump_bb_info): Added flow info to dumps
3031 (dump_reg_info): New function.
3032 (dump_flow_info): Moved reg info printing to dump_reg_info.
3033 * auto-inc-dec.c (rest_of_handle_auto_inc_dec): Renamed df_clrur to df_live
3034 and removed df_finish call.
3035 (pass_inc_dec): Added TODO_df_finish flag.
3036 * reorg.c (dbr_schedule): Renamed df_clrur to df_live
3037 and removed df_finish call.
3038 (pass_delay_slots): Added TODO_df_finish flag.
3039 * df-scan.c (df_scan_alloc): Added set to dflow->computed.
3040 (df_scan_dump): Renamed to df_scan_start_dump.
3041 (problem_SCAN): Updated for new dumpers.
3042 * haifa-sched.c (sched_finish): Removed df parameter and deleted
3043 call to df_finish.
3044 * df-core.c (ddf): Renamed to df_current_instance and made public.
3045 (df_init): Ditto and added check to make sure only one instance of
3046 df is alive at any point.
3047 (df_add_problem): Initialized dflow->computed.
3048 (df_analyze_problem): Set dflow->computed.
3049 (df_dump): Now calls new dumpers.
3050 (df_dump_start, df_dump_top, df_dump_bottom): New functions.
3051 (debug_df_insn, debug_df_reg, debug_df_regno, debug_df_defno,
3052 debug_df_useno): Renamed ddf to df_current_instance.
3053 * mode_switching (optimize_mode_switching): Renamed df_clrur to df_live
3054 and removed df_finish call.
3055 (pass_mode_switching): Added TODO_df_finish flag.
3056 * modulo-sched.c (sms_schedule): Removed calls to df_dump and df
3057 parameter from sched_finish.
3058 (pass_sms): Added TODO_df_finish flag.
3059 * web.c (web_main): Removed call to df_dump and df_finish.
3060 (pass_web): Added TODO_df_finish flag.
3061 * loop-init.c (pass_rtl_move_loop_init): Added TODO_df_finish
3062 flag.
3063 * global.c (global_alloc): Removed call to df_dump and debugging
3064 code.
3065 * ifcvt.c (if_convert): Renamed df_clrur to df_live
3066 and removed df_finish call.
3067 (pass_rtl_ifcvt, pass_if_after_combine, pass_if_after_reload):
3068 Added TODO_df_finish flag.
3069 * recog.c (peephole2_optimize): Renamed df_clrur to df_live and
3070 removed df_finish call.
3071 (pass_peephole2): Added TODO_df_finish flag.
3072 * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments):
3073 Renamed df_clrur to df_live and removed df_finish call.
3074 (pass_regmove, pass_stack_adjustments): Added TODO_df_finish flag.
3075 * function.c (epilogue_done): Removed df_finish call.
3076 (pass_thread_prologue): Added TODO_df_finish flag.
3077 * df.h (DF_CLRUR): Renamed to DF_LIVE.
3078 (df_dump_bb_problem_function): New function type.
3079 (df_problem.dump_fun): Deleted.
3080 (df_problem.dump_fun_start, df_problem.dump_fun_top,
3081 df_problem.dump_fun_bottom, problem_data.computed,
3082 df_current_instance): New fields.
3083 (DF_CLRUR_BB_INFO): Renamed to DF_LIVE_BB_INFO.
3084 (df_clrur_bb_info): Renamed to df_live_bb_info.
3085 (df_dump_start, df_dump_top, df_dump_bottom): New functions.
3086 * rtl-factoring (rtl_seqabstr): Renamed df_clrur to df_live
3087 and removed df_finish call.
3088 (pass_rtl_seqabstr): Added TODO_df_finish flag.
3089 * bt-load (branch_target_load_optimize): Renamed df_clrur to df_live
3090 and removed df_finish call.
3091 (pass_branch_target_load_optimize1,
3092 pass_branch_target_load_optimize2): Added TODO_df_finish flag.
3093 * loop-invariant.c (move_loop_invariants): Removed call to
3094 df_finish.
3095 * subregs-init.c (initialize_uninitialized_subregs): Renamed
3096 df_clrur to df_live and changed call to dg_get_live_in to
3097 DF_LIVE_IN.
3098 * rtl.h (dump_reg_info): New function.
3099 * sched-int.h (sched_finish): Removed df parameter.
3100 * combine.c (rest_of_handle_combine): Renamed df_clrur to df_live
3101 and removed df_finish call.
3102 (pass_combine): Added TODO_df_finish flag.
3103 * df-problems.c (df_get_live_in, df_get_live_out): Renamed
3104 DF_CLRUR to DF_LIVE.
3105 (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_clrur_dump,
3106 df_urec_dump, df_ri_dump): Deleted function.
3107 (df_ru_start_dump, df_ru_top_dump, df_ru_bottom_dump,
3108 df_rd_start_dump, df_rd_top_dump, df_rd_bottom_dump,
3109 df_lr_start_dump, df_lr_top_dump, df_lr_bottom_dump,
3110 df_ur_start_dump, df_ur_top_dump, df_ur_bottom_dump,
3111 df_live_top_dump, df_live_bottom_dump, df_ri_start_dump,
3112 df_urec_top_dump, df_urec_bottom_dump): New function.
3113 (problem_RU, problem_RD, problem_LR, problem_UR, problem_UREC,
3114 problem_CHAIN, problem_RI): Replaced dump functions.
3115 (df_clrur_get_bb_info): Renamed to df_live_get_bb_info.
3116 (df_clrur_set_bb_info): Renamed to df_live_set_bb_info.
3117 (df_clrur_free_bb_info): Renamed to df_live_free_bb_info.
3118 (df_clrur_alloc): Renamed to df_live_alloc.
3119 (df_clrur_local_finalize): Renamed to df_live_local_finalize.
3120 (df_clrur_free): Renamed to df_clrur_free.
3121 (problem_CLRUR): Renamed to problem_LIVE and dump functions
3122 changed.
3123 (df_clrur_add_problem): Renamed to df_live_add_problem.
3124 (df_chains_dump): Renamed to df_chain_start_dump.
3125 (df_chain_add_problem, df_ri_alloc, df_ri_compute): Removed
3126 problem_data->computed.
3127 * Makefile.in (passes.o): Added DF_H.
3128 * sched-rgn.c (schedule_insns): Renamed df_clrur to df_live
3129 and removed df_finish call.
3130 (pass_sched, pass_sched2): Added TODO_df_finish flag.
3131 * passes.c (execute_todo): Added call to df_finish for
3132 TODO_df_finish flag.
3133 * cfgrtl.c (dump_regset_in, dump_regset_out): Deleted.
3134 (rtl_dump_bb, print_rtl_with_bb): Fixed to find and print df info.
3135 * dce.c (init_dce): Removed call to df_dump.
3136 (end_dce, end_fast_dce): Removed call df_finish and null out local
3137 df instance variable.
3138 (pass_rtl_dce, pass_fast_rtl_dce, pass_rtl_dse): Added
3139 TODO_df_finish flag.
3142 2006-07-23 Kenneth Zadeck <zadeck@naturalbridge.com>
3144 * tree-pass.h (pass_regclass_init, pass_no_new_pseudos,
3145 pass_split_before_sched2): Added.
3146 (pass_life, pass_remove_death_notes): Deleted.
3147 * rtlanal.c: Documentation.
3148 * stack-ptr-mod.c: Ditto.
3149 * output.h: Ditto.
3150 * function.c: Ditto.
3151 * caller-save.c: Ditto.
3152 * sched-deps.c: Ditto.
3153 * jump.c: Ditto.
3154 * alias.c: Ditto.
3155 * calls.c: Ditto.
3156 * cfgloop.c: Ditto.
3157 (establish_preds, flow_loops_find): Removed ref to cfun->max_loop_depth.
3158 * final.c: (rest_of_no_new_pseudos, pass_no_new_pseudos): Added.
3159 * cfg.c (dump_regset, debug_regset): Moved from flow.c.
3160 * regs.h (regs_may_share): Deleted.
3161 (allocate_reg_life_data): Added.
3162 * flow.c: Deleted.
3163 * global.c (reg_may_share): Deleted.
3164 (global_alloc): Removed support for regs_may_share.
3165 * ifcvt.c (rest_or_handel_if_conversion): Removed ref to
3166 clear_reg_deaths.
3167 * timevar.def (TV_FLOW): Removed.
3168 * recog.c (find_single_use, find_single_use_1): Moved to combine
3169 and made static.
3170 (split_all_insns, split_all_insns_noflow): Made static.
3171 (pass_split_before_regclass): Fixed tv_id.
3172 (gate_handle_split_before_sched2,
3173 rest_of_handle_split_before_sched2, pass_split_before_sched2): New.
3174 (pass_split_for_shorten_branches): Renamed and fixed tv_id.
3175 * recog.h (find_single_use): Removed.
3176 * regmove.c (find_use_as_address): Moved from flow and made
3177 static.
3178 * function.h (max_loop_depth): Removed.
3179 * cfgcleanup.c (delete_dead_jumptables): Moved from flow.c.
3180 * subregs-init.c (initialize_uninitialized_subregs): Added call to
3181 allocate_reg_life_data if new regs were added.
3182 * regclass.c (max_regno, reg_set_to_hard_reg_set,
3183 allocate_reg_life_data): Moved from flow.c.
3184 (regclass_init): Now static and returns unsigned int.
3185 (pass_regclass_init, find_subregs_of_mode): New.
3186 (init_subregs_of_mode): Now fills the hash table.
3187 * rtl.h (find_use_as_address, split_all_insns,
3188 split_all_insns_noflow, regclass_init): Deleted.
3189 * combine.c (find_single_use_1, find_single_use): Moved from recog
3190 and made static.
3191 (delete_noop_moves): Moved from flow.c and made static.
3192 (rest_of_handle_combine): Now runs dce as part of df_init.
3193 * df-problems.c (reg_n_info): Moved from flow.c.
3194 (df_ri_problem_data.computed): Added field.
3195 (print_note, df_set_unused_notes_for_mw, df_set_dead_notes_for_mw,
3196 df_create_unused_note, df_ri_bb_compute, df_ri_compute): Changed
3197 note printing to go to dump_file.
3198 (df_ri_alloc, df_ri_compute, df_ri_free, df_ri_dump): Added
3199 support for computed flag.
3200 * Makefile.in: (flow.c flow.o): Removed.
3201 * sched-rgn.c (check_dead_notes1, deaths_in_region): Removed.
3202 (init_regions, add_block1): Removed last of note counting code.
3203 (rest_of_handle_sched2): Moved call to split_all_insns to separate
3204 pass.
3205 * basic_block.h (first_insn_after_basic_block_note,
3206 update_life_extent, PROP_* flags, life_analysis, update_life_info
3207 update_life_info_in_dirty_blocks, count_or_remove_death_notes,
3208 propagate_block, clear_reg_deaths, propagate_block_info,
3209 propagate_one_insn, init_propagate_block_info,
3210 free_propagate_block_info): Removed.
3211 (CLEANUP_*): Renumbered.
3212 sched_vis.c: (print_exp): Added proper printing for PRE and
3213 POST_MODIFY.
3214 * passes.c (init_optimization_passes): Added pass_regclass_init,
3215 pass_no_new_pseudos, and pass_split_before_sched2. Deleted
3216 pass_life.
3217 * struct-equiv.c (struct_equiv_init): Removed dead conditional.
3218 * config/rs6000/rs6000.c (print_operand): More fixes for
3219 PRE_MODIFY.
3220 * config/rs6000/rs6000.md ("*movdf_hardfloat32",
3221 "*movdf_softfloat32"): Ditto.
3222 * cfgrtl (first_insn_after_basic_block_note): Moved from flow.c
3223 and made static.
3226 2006-07-16 Zdenek Dvorak <dvorakz@suse.cz>
3227 Kenneth Zadeck <zadeck@naturalbridge.com>
3229 * regrename.c: Fixed comments.
3230 * see.c (rest_of_handle_see): Removed call to
3231 update_life_info_in_dirty_blocks.
3232 * tree-pass.h: (pass_clear_df, pass_reset_df): Removed.
3233 * passes.c (init_optimization_passes): Ditto.
3234 * cfghooks.c (split_block): Remove call to split_block_end.
3235 (merge_blocks): Removed call to merge_blocks_end.
3236 (duplicate_block): Removed call to duplicate_block_end.
3237 * cfghooks.h (split_block_end, merge_blocks_end,
3238 duplicate_block_end): Removed.
3239 * cfgrtl.c (rtl_split_block_end, rtl_merge_blocks_end): Removed.
3240 (rtl_create_basic_block, force_nonfallthru_and_redirect,
3241 rtl_split_edge, cfg_layout_merge_blocks, cfg_layout_split_edge):
3242 Removed old calls to incremental dataflow.
3243 (dump_regset_in, dump_regset_out): Removed call to dump_regset.
3244 (rtl_dump_bb, print_rtl_with_bb): Rearranged dataflow printing.
3245 * cfg.c (compact_blocks): Removed code to keep dataflow up to
3246 date.
3247 * flow.c (clear_log_links): Deleted
3248 (life_analysis, init_propagate_block_info): Removed PROP_LOG_LINKS.
3249 (update_life_info): Removed call to clear_log_links.
3250 (mark_set_1): Removed code to build log links.
3251 (clear_log_links): Deleted.
3252 * df-scan.c (df_uses_record): Added code to set
3253 DF_REF_PRE_POST_MODIFY.
3254 (df_insn_refs_record): Added code to set DF_REF_CALL_STACK_FRAME.
3255 * df-core.c (df_analyze_simple_change_some_blocks,
3256 df_analyze_simple_change_one_block, df_compact_blocks,
3257 df_bb_replace, reset_df, pass_reset_df, clear_df, pass_clear_df):
3258 Deleted.
3259 * recog.c (peephole2_optimize): Deleted some rotted code.
3260 * df.h (DF_REF_PRE_POST_MODIFY, DF_REF_CALL_STACK_USAGE): New
3261 Flags.
3262 (df_analyze_simple_change_some_blocks,
3263 df_analyze_simple_change_one_block, df_compact_blocks,
3264 df_bb_replace): Deleted.
3265 * bt-load (branch_target_load_optimize): Removed call to
3266 update_life_info.
3267 * cfgcleanup.c (thread_jump, try_forward_edges): Deleted mode
3268 parameter to thread_jump.
3269 (try_optimize_cfg, cleanup_cfg): Removed CLEANUP_UPDATE_LIFE.
3270 * cfglayout.c (cfg_layout_duplicate_bb_end): Deleted.
3271 * combine.c (combine_instructions): Removed call to
3272 update_life_info.
3273 (set_nonzero_bits_and_sign_copies, reg_nonzero_bits_for_combine,
3274 reg_num_sign_bit_copies_for_combine, get_last_value_validate,
3275 get_last_value, reg_dead_at_p): Changed to use local df instance.
3276 (create_log_links, clear_log_links): New function.
3277 (rest_of_handle_combine): Added new version of df, create and
3278 destroy log links locally.
3279 * bb-reorder.c (rest_of_handle_partition_blocks): Removed call to
3280 update_life_info.
3281 * basic-block.h (PROP_LOG_LINKS): Removed and renumbered other
3282 PROP_*.
3283 (CLEANUP_UPDATE_LIFE, CLEANUP_LOG_LINKS): Removed and renumbered
3284 other CLEANUP_*.
3285 * tree-cfg.c (tree_cfg_hooks): Removed fields.
3286 * struct-equiv.c (struct_equiv_init): Removed call to
3287 update_life_in_dirty_blocks.
3288 * dce.c (init_dce, end_dce, end_fast_dce): Removed code to service
3289 rtl_df.
3291 2006-07-12 Kenneth Zadeck <zadeck@naturalbridge.com>
3293 * auto-inc-dec.c (parse_add_or_inc): Moved test to merge_in_block.
3294 (find_inc): Now returns success flag if transformation was made.
3295 (find_mem): Ditto.
3296 (merge_in_block): Restructed to loop if any merges were made.
3297 Added max_reg parameter. Added test from parse_add_or_inc.
3299 2006-07-11 Kenneth Zadeck <zadeck@naturalbridge.com>
3301 * regrename.c (regrename_optimize): Changed df problem
3302 initialization.
3303 * sched-ebb.c (schedule_ebbs): Ditto.
3304 * reorg.c (dbr_schedule): Ditto.
3305 * mode-switching.c (optimize_mode_switching): Ditto.
3306 * ifcvt.c (if_convert): Ditto.
3307 * reorg.c (peephole2_optimize): Ditto.
3308 * regmove.c (regmove_optimize, rest_of_handle_stack_adjustments):
3309 Ditto.
3310 * sched-rgn.c (schedule_insns): Ditto.
3311 * rtl-factoring.c (rtl_seqabstr): Ditto.
3312 * bt-load.c (branch_target_load_optimize): Ditto.
3313 * subregs-init.c (initialize_uninitialized_subregs): Ditto.
3314 * df-core.c (reset_df): Ditto.
3315 * flow.c (update_life_info, propagate_one_insn): Renamed UPWARD_LIVE
3316 to LR.
3317 (rest_of_handle_life): Changed df problem
3318 initialization.
3319 * function.c (keep_stack_depressed): Renamed UPWARD_LIVE to LR.
3320 * combine.c (set_nonzero_bits_and_sign_copies): Changed DF_LIVE_IN
3321 to DF_UR_IN or DF_LR_IN.
3322 (reg_nonzero_bits_for_combine,
3323 reg_num_sign_bit_copies_for_combine, get_last_value): Changed
3324 DF_LIVE_IN to DF_UR_IN.
3325 * reg-stack.c (reg_to_stack): Changed df problem
3326 initialization. Changed DF_LIVE_IN to DF_LR_IN. str
3327 * struct-equiv.c (struct_equiv_init): Renamed UPWARD_LIVE
3328 to LR.
3329 * dce.c (dce_process_block): Changed DF_UPWARD_LIVE_* to DF_LR_*.
3330 * df.h: (DF_CLRUR) Added symbol and renamed others in block.
3331 (DF_CLRUR_BB_INFO): New macro.
3332 (DF_LIVE_IN, DF_LIVE_OUT): Changed to use output of clrur problem.
3333 (DF_UPWARD_LIVE_IN): Renamed to DF_LR_IN.
3334 (DF_UPWARD_LIVE_OUT): Renamed to DF_LR_OUT.
3335 (df_clrur_bb_info): New structure.
3336 (df_clrur_add_problem, df_clrur_get_bb_info): New functions.
3337 * df-problems: (df_get_live_in, df_get_live_out,
3338 df_lr_simulate_artificial_refs_at_end): Reworked to
3339 to be consistent with new dataflow problems and naming.
3340 (df_ur_local_finalize): Deleted function.
3341 (df_problem problem_UR): Removed ref to df_ur_local_finalize.
3342 (df_clrur_get_bb_info, df_clrur_set_bb_info,
3343 df_clrur_free_bb_info, df_clrur_alloc, df_clrur_free,
3344 df_clrur_dump, df_clrur_add_problem): New functions.
3345 (df_problem problem_CLRUR): New datastructure.
3346 * auto-inc-dec.c (reg_next_inc_use): New Array.
3347 (attempt_change): Added inc_reg parm and boolean result. Move
3348 some tests to try_merge. Added processing for reg_next_inc_use.
3349 (try_merge): Added boolean result and some test moved from
3350 attempt_change and parse_add_or_inc.
3351 (parse_add_or_inc): Move test to try_merge. Improved debugging,
3352 and added code to support reg_next_inc_use. Added more
3353 correctness tests.
3354 (rest_of_handle_auto_inc_dec): Changed df problem initialization
3355 and added code to support reg_next_inc_use.
3357 2006-07-05 Richard Sandiford <richard@codesourcery.com>
3359 * passes.c (init_optimization_passes): Move the final RTL DSE pass
3360 after thread_prologue_and_epilogue.
3362 2006-07-01 Daniel Berlin <dberlin@dberlin.org>
3363 David Edelsohn <edelsohn@gnu.org>
3364 Kenneth Zadeck <zadeck@naturalbridge.com>
3366 tree-pass.h (pass_inc_dec): New pass variable.
3367 auto-inc-dec.c: New file that contains pass to find auto-inc/dec
3368 instruction combinations.
3369 flow.c: Removed unused includes for execinfo.h and stdio.h.
3370 (init_propagate_block_info): Fixed missing comma typo.
3371 (attempt_auto_inc, try_pre_increment): Added code to abort if any
3372 auto-inc/dec insns are found by this pass.
3373 df-scan.c (df_defs_record): Added flags parameter.
3374 (df_insn_refs_record): Added code to check for conditional def.
3375 (df_recompute_luids): New function.
3376 df-core.c: Fixed comment.
3377 global.c (global_alloc): Moved misplaced debugging code.
3378 (global_conflicts): Added patch to fix the way auto-incs are
3379 accounted for in conflicts graph.
3380 timevar.def (TV_AUTO_INC_DEC): New variable.
3381 recog.c: Fixed comment.
3382 function.c: Fixed comment.
3383 df.h (DF_REF_CONDITIONAL): New flag.
3384 (df_recompute_luids): New function.
3385 gcse.c (extract_mentioned_regs_helper): Added PRE/POST_MODIFY
3386 cases.
3387 common.opt (fauto-inc-dec): New flag.
3388 rtl.h (AUTO_INC_DEC): Made this symbol dependent on
3389 HAVE_(PRE/POST)_MODIFY_(REG/DISP). Made other symbols dependent
3390 on AUTO_INC_DEC rather than components that defined AUTO_INC_DEC.
3391 df-problems.c (df_ru_bb_local_compute_process_def,
3392 df_lr_bb_local_compute, df_lr_simulate_artificial_refs_at_end,
3393 df_lr_simulate_one_insn, df_chain_create_bb,
3394 df_create_unused_note): Added DF_REF_CONDITIONAL to keep
3395 conditional defs from being added to kill sets.
3396 dce.c (dce_process_block): Ditto.
3397 Makefile.in (auto-inc-dec.c): New file.
3398 basic-block.h: Preparation to get rid of PROP_AUTO_INC flag.
3399 passes.c (init_optimization_passes): Added pass_inc_dec.
3400 config/rs6000/rs6000.c (rs6000_legitimate_address): Added code for
3401 PRE_MODIFY.
3402 (rs6000_mode_dependent_address, print_operand): Added case for pre_modify.
3403 config/rs6000/rs6000.h (HAVE_PRE_MODIFY_DISP,
3404 HAVE_PRE_MODIFY_REG): Added flags.
3405 reload1 (eliminate_regs_1, elimination_effects): Added cases for
3406 PRE/POST_MODIFY.
3410 2006-05-27 Steven Bosscher <steven@gcc.gnu.org>
3412 * reorg.c (dbr_schedule): Fix df_ur_add_problem calls.
3414 2006-05-24 Kenneth Zadeck <zadeck@naturalbridge.com>
3416 * df-scan.c (df_scan_free_internal, df_grow_reg_info,
3417 df_reg_chain_unlink, df_ref_remove,
3418 df_insn_create_insn_record, df_insn_refs_delete,
3419 df_ref_create_structure, df_ref_record, df_mark_reg,
3420 df_record_entry_block_defs, df_record_exit_block_uses):
3421 Formatting fixes.
3422 (df_get_artificial_defs): Spelling fixes.
3423 (df_ref_record, df_def_record_1, df_uses_record):
3424 Fix the way that subregs are processed.
3425 (df_defs_record, df_def_record_1, df_insn_refs_record):
3426 Split DF_REF_CLOBBER into two cases.
3427 * df-core.c (df_analyze): Added comments
3428 (df_simple_iterative_dataflow): New function.
3429 (df_dump): Formatting fixes.
3430 * df.h (DF_REF_CLOBBER): Deleted.
3431 (DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New enums.
3432 (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
3433 df_urec_bb_info): Added comments.
3434 (df_simple_iterative_dataflow): New function.
3435 * df-problems.c (df_print_bb_index, df_set_dead_notes_for_mw):
3436 Added comments.
3437 (df_ru_alloc, df_ru_local_compute, df_ru_confluence_n,
3438 df_ru_free, df_ru_dump, df_rd_alloc,
3439 df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
3440 df_rd_local_compute, df_rd_confluence_n, df_rd_free,
3441 df_rd_dump, df_lr_bb_local_compute, df_lr_bb_local_compute,
3442 df_lr_local_compute, df_ur_alloc, df_ur_dump, df_urec_alloc,
3443 df_urec_bb_local_compute, df_urec_local_compute,
3444 df_urec_local_finalize, df_urec_dump, df_chain_create_bb,
3445 df_create_unused_note, df_ri_bb_compute): Formatting fixes.
3446 (df_ru_bb_local_compute_process_def): Do not clear gen set.
3447 (df_ru_bb_local_compute): Reorder processing insn.
3448 (df_ru_transfer_function): Fixed incorrect use of bitmaps.
3449 (df_ru_dump, df_rd_dump, df_chains_dump): Added debugging code.
3450 (df_lr_bb_local_compute, df_lr_simulate_one_insn,
3451 df_ur_bb_local_compute, df_chain_create_bb,
3452 df_create_unused_note, df_ri_bb_compute): Split
3453 DF_REF_CLOBBER into two cases.
3454 * ddg.c (add_deps_for_def): Changed to use ru info.
3455 * modulo-sched.c (sms_schedule): Added debugging.
3456 * dce.c (rs_dflow, df_problem reaching_stores_problem): Deleted.
3457 (init_rs_dflow, calculate_reaching_stores): Move dataflow to new
3458 df function.
3460 2006-05-23 Kenneth Zadeck <zadeck@naturalbridge.com>
3462 * fwprop.c (local_ref_killed_between_p): Rearranged definition.
3464 2006-05-23 Steven Bosscher <stevenb.gcc@gmail.com>
3466 * rtlanal.c (find_occurrence): Move to fwprop.c.
3467 * rtl.h (find_occurrence): Remove prototype.
3468 * fwprop.c (can_simplify_addr): Fix check for frame based addresses.
3469 (should_replace_address): Update comment before this function.
3470 (local_ref_killed_between_p): Don't choque on NOTEs.
3471 (use_killed_between): Handle the exceptional case that a DEF does
3472 not dominate one of its uses.
3473 (varying_mem_p): Simplify return type.
3474 (all_uses_available_at): Clean up unnecessary single_set calls.
3475 (find_occurrence_callback, find_occurrence): New.
3476 (subst): Rename to try_fwprop_subst.
3477 (forward_propagate_subreg): Update caller.
3478 (forward_propagate_and_simplify): Likewise.
3479 (fwprop_init): Find loops before computing data flow info.
3480 (fwprop_done): Call cleanup_cfg without CLEANUP_PRE_LOOP. Free
3481 loop tree before cleanup_cfg.
3483 2006-05-14 Kenneth Zadeck <zadeck@naturalbridge.com>
3485 * regclass.c (init_subregs_of_mode): Created dummy version
3486 when CANNOT_CHANGE_MODE_CLASS is undefined.
3488 2006-05-13 Steven Bosscher <stevenb.gcc@gmail.com>
3490 * df-core.c (df_bb_regno_last_use_find): Do not look for dataflow
3491 information attached to non-INSNs such as NOTEs.
3492 (df_bb_regno_first_def_find, df_bb_regno_last_def_find): Likewise.
3494 2006-05-05 Kenneth Zadeck <zadeck@naturalbridge.com>
3496 * haifa-sched.c (glat_size): New variable.
3497 (sched-init, extend_bb): Properly initialized glat_start and
3498 glat_end.
3499 (free_glat): Fixed double free of bitmaps.
3500 * df-scan.c (df_scan_get_bb_info, df_scan_set_bb_info): Added
3501 assertions.
3502 * df-problems.c (df_ru_get_bb_info, df_ru_set_bb_info,
3503 df_rd_get_bb_info, df_rd_set_bb_info, df_lr_get_bb_info,
3504 df_lr_set_bb_info, df_ur_get_bb_info, df_ur_set_bb_info,
3505 df_urec_get_bb_info, df_urec_set_bb_info): Ditto.
3507 2006-04-25 Kenneth Zadeck <zadeck@naturalbridge.com>
3509 * flow.c (rest_of_handle_life): Removed unnecessary code.
3510 * df-scan.c (df_scan_free_internal, df_scan_free): Fixed
3511 storage leak.
3512 * df-core.c (df_delete_basic_block): Removed dangling pointer.
3513 * mode-switching.c (optimize_move_switching): Moved creation of df
3514 instance to avoid storage leak.
3515 * ifcvt.c (if_convert): Fixed storage leak.
3516 * dce.c (mark_insn,
3517 rest_of_handle_dce): Removed old way of processing libcalls.
3518 (libcall_matches_p, mark_libcall_insns): Removed.
3519 (mark_libcall): New function.
3520 (mark_reg_dependencies, dce_process_block): New code to check for
3521 libcalls.
3522 (fast_dce): Fixed storage leak.
3524 2006-04-24 Kenneth Zadeck <zadeck@naturalbridge.com>
3526 * sched-ebb.c (schedule_ebbs): Updated register lifetime info.
3527 * modulo-sched.c (sms_schedule): Ditto.
3528 * sched-reg.c (schedule_insns): Ditto.
3529 * regmove.c (regmove-optimize): Ditto.
3530 * tree.h (setjmp_vars_warning, setjmp_args_warning): Removed.
3531 (generate_setjmp_warning): Added.
3532 * tree-pass.h (pass_subregs_of_mode_init): Added.
3533 * flow.c (life_analysis): Moved parts to other passes.
3534 (regno_clobbered_at_setjmp):Moved setjmp warning to local-alloc.
3535 (rest_of_handle_life): Ditto.
3536 * df-scan.c (df_ref_record): Reformatted comment.
3537 * ifcvt.c (rest_of_handle_if_conversion): Removed last bit of
3538 rtl_df scafolding.
3539 * local-alloc.c (local_alloc, no_equiv, block_alloc): Changed to
3540 use same instance of df as global_alloc,
3541 (rest_of_handle_local_alloc): Now also produces setjmp warnings.
3542 * function.c (regno_clobbered_at_setjmp): Moved from flow.
3543 (setjmp_vars_warning, setjmp_args_warning): Added parms to use
3544 passed in df instance.
3545 (generate_setjmp_warnings): New function.
3546 * df.h (DF_RI_SETJMP): New constant.
3547 (df_ri_get_setjmp_crosses): New function.
3548 * df-problems.c (df_ri_problem_data, setjmp_crosses): New
3549 variables.
3550 (df_ri_alloc, df_ri_bb_compute, df_ri_bb_compute, df_ri_compute):
3551 Changed variables live across setjmp computation.
3552 (df_ri_get_setjmp_crosses): New function.
3553 * regclass.c (init_subregs_of_mode): Changed return.
3554 (gate_subregs_of_mode_init, pass_subregs_of_mode_init): New.
3555 * rtl.h (init_subregs_of_mode): Removed.
3556 * integrate.c (allocate_initial_values): Removed incorrect parm
3557 attribute and changed instance of df used.
3558 * output.h (regno_clobbered_at_setjmp): Removed.
3559 * stack-ptr-mod.c: Fixed comment.
3560 * Makefile.in (regclass.o): Added tree-pass.h.
3561 * basic-block.h (safe_insert_insn_on_edge): Deleted.
3562 * passes.c (init_optimization_passes): Added
3563 pass_subregs_of_mode_init.
3564 * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Deleted.
3565 * rtl-profile.c: Removed.
3567 2006-04-21 Kenneth Zadeck <zadeck@naturalbridge.com>
3569 * tree-pass.h (pass_stack_ptr_mod, pass_initialize_subregs,
3570 pass_reset_df): New.
3571 * flow.c (notice_stack_pointer_modification_1,
3572 notice_stack_pointer_modification, find_regno_partial_param,
3573 find_regno_partial, initialize_uninitialized_subregs): Moved to
3574 separate passes in separate files.
3575 (life_analysis): Removed call to notice_stack_pointer_modification.
3576 (rest_of_handle_life): Removed call to initialize_uninitialized_subargs.
3577 * df-core.c (reset_df, pass_reset_df): New.
3578 * Makefile.in (stack-ptr-mod.o, subregs-init.o): New.
3579 * passes.c (pass_stack_ptr_mod, pass_initialize_subregs,
3580 pass_reset_df): New passes.
3581 * subregs-init.c: New file that contains separate pass for
3582 initialize_uninitialized_subargs.
3583 * stack-pointer-mod.c: New file that contains separate pass for
3584 notice_stack_pointer_modification.
3586 2006-04-19 Kenneth Zadeck <zadeck@naturalbridge.com>
3588 * ifcvt.c (rest_of_handle_if_after_combine): Removed flow
3589 scaffolding.
3590 * passes.c (init_optimization_passes): Moved clear_df to after
3591 combine and changed two expensive dce passes into a dse and fast
3592 dce pass.
3594 2006-04-18 Kenneth Zadeck <zadeck@naturalbridge.com>
3596 * mode-switching.c (optimize_mode_switching): Created local
3597 instance of df and removed references to flow.
3598 * regmove.c (mark_flags_life_zones, regmove_optimize): Ditto.
3599 * global.c (global_alloc, rest_of_handle_global_alloc): Reused
3600 instance of df created in local alloc.
3601 * local-alloc.c (rest_of_handle_local_alloc): Create instance of
3602 ra_df used by all register allocation.
3603 * bb-reorder.c (fix_crossing_conditional_branches): Removed code
3604 to keep dataflow up to date.
3605 * Makefile.in (bb-reorder.o): Removed ref to DF_H.
3606 * passes.c (init_optimization_passes): Meved clear_df to before
3607 partition_blocks.
3609 2006-04-17 Kenneth Zadeck <zadeck@naturalbridge.com>
3611 * tree-pass.h (pass_recompute_reg_usage): Deleted. flow.c
3612 (pass_recompute_reg_usage, recompute_reg_usage): Deleted. *
3613 sched-ebb.c (begin_schedule_ready, schedule_ebb,
3614 begin_schedule_ready, schedule_ebb, schedule_block): Threaded
3615 local instance of df.
3616 (schedule_ebbs): Created local instance of df.
3617 * haifa-sched.c (schedule_block, sched_init, sched_finish,
3618 generate_recovery_code, begin_speculative_block,
3619 add_to_speculative_block, init_before_recovery,
3620 create_recovery_block, create_check_block_twin, init_glat,
3621 init_glat1): Threaded local instance of df.
3622 * modulo-sched.c (sms_schedule): Ditto.
3623 (rest_of_handle_sms): Removed unnecessary update of flow info.
3624 * sched-int.h (df.h): Now includes this.
3625 (schedule_block, sched_init, sched_finish, add_block): Added df
3626 parm.
3627 * sched-rgn.c (begin_schedule_ready, schedule_region,
3628 schedule_insns): Threaded local instance of df.
3629 (schedule_insns): Removed unnecessary update of flow info.
3630 * Makefile.in (SCHED_INT_H): Added DF_H.
3631 (ddg.o, modulo-sched.o, haifa-sched.o, sched-deps.o, sched-rgn.o,
3632 sched-ebb.o): Removed DF_H.
3633 * ddg.c (build_inter_loop_deps): Swapped parms.
3634 (create_ddg): Swapped parms for call.
3635 * passes.c (init_optimization_passes): Removed dce and
3636 recompute_reg_use pass and moved clear_df to before first
3637 schedulers.
3639 2006-04-16 Kenneth Zadeck <zadeck@naturalbridge.com>
3641 * df.h (shared_df): Removed.
3642 (ra_df): New.
3643 * core.c (shared_df): Removed.
3644 (ra_df): New.
3645 * postreload.c (reload_combine): Changed to use ra_df.
3646 * reload.c (push_reload, find_dummy_reload): Ditto.
3647 * global.c (global_alloc, global_conflicts, mark_elimination,
3648 build_insn_chain, rest_of_handle_global_alloc): Ditto.
3649 * reload1.c (compute_use_by_pseudos, reload): Ditto.
3650 * local-alloc.c (local_alloc, block_alloc): Created local instance
3651 of df.
3652 * passes.c (init_optimization_passes): Moved clear_df to before
3653 register allocators.
3654 * tree-pass.h (pass_partition_blocks): Removed redundant
3655 copy.
3657 2006-04-16 Kenneth Zadeck <zadeck@naturalbridge.com>
3659 * tree-pass.h (pass_reset_df_after_reload): Removed.
3660 * df-core.c (reset_df_after_reload, pass_reset_df_after_reload):
3661 Removed.
3662 * function.c (prologue_epilogue_df): New global.
3663 (rtx keep_stack_depressed, thread_prologue_and_epilogue_insns):
3664 Unthreaded local version of df and replaced with
3665 prologue_epilogue_df.
3666 * rtl.h (prologue_epilogue_df): New.
3667 * passes.c (init_optimization_passes): Removed all uses of flow
3668 after register allocation.
3669 * config/i386/i386.c (ix86_eax_live_at_start_p): Replaced use of
3670 flow with prologue_epilogue_df.
3672 2006-04-15 Kenneth Zadeck <zadeck@naturalbridge.com>
3674 * tree-pass.h (pass_flow2): Renamed to
3675 pass_thread_prologue_and_epilogue.
3676 * passes.c (pass_flow2): Ditto.
3677 * final.c (rest_of_clean_state): Removed flow2_completed.
3678 * config/i386/i386.md: Ditto.
3679 * config/sh/sh.md: Ditto.
3680 * config/mips/mips.md: Ditto.
3681 * config/h8300/h8300.md: Ditto.
3682 * flow.c: Ditto.
3683 (rest_of_handle_flow2): Moved to function.c as
3684 rest_of_handle_thread_prologue_and_epilogue.
3685 * timevar.def (TV_FLOW2): Renamed to
3686 TV_THREAD_PROLOGUE_AND_EPILOGUE.
3687 * function.c (keep_stack_depressed): Added df parameter.
3688 (thread_prologue_and_epilogue_insns): Made local function and
3689 removed unused parameter. Added local instance of df.
3690 (rest_of_handle_thread_prologue_and_epilogue): New function
3691 renamed from flow.c.
3692 (pass_thread_prologue_and_epilogue): New pass.
3693 * rtl.h (flow2_completed, thread_prologue_and_epilogue_insns):
3694 Removed.
3695 * df-problems.c (df_ru_get_bb_info, df_rd_get_bb_info,
3696 df_lr_get_bb_info, df_ur_get_bb_info, df_urec_get_bb_info): Added
3697 check.
3698 * Makefile.in (function.o): Added timevar.h.
3700 2006-04-13 Kenneth Zadeck <zadeck@naturalbridge.com>
3702 * rtl-factoring (collect_pattern_seqs, clear_regs_live_in_seq,
3703 recompute_gain_for_pattern_seq, clear_regs_live_in_seq,
3704 recompute_gain, split_blocks_after_seqs, split_pattern_seq,
3705 erase_matching_seqs, abstract_best_seq, rtl_seqabstr): Threaded
3706 local instance of df to replace all references to flow.
3707 (gate_rtl_seqabstr): Removed unnecessary calls.
3708 * passes.c (init_optimization_passes): Moved clear_df before
3709 rtl_seqabstr. Removed some expensive calls to dce.
3710 * tree-pass.h (pass_fast_rtl_dce): New.
3711 * regrename.c (gate_handle_regrename): Update call to pass.
3712 * sched-rgn.c (rest_of_handle_sched2): Remove outdated calls.
3714 2006-04-13 Kenneth Zadeck <zadeck@naturalbridge.com>
3716 * regmove.c (rest_of_handle_stack_adjustments): Removed all
3717 references to flow.c and replaced with df.
3718 * passes.c (init_optimization_passes): Moved clear_df before
3719 pass_stack_adjustments.
3721 2006-04-12 Kenneth Zadeck <zadeck@naturalbridge.com>
3723 * recog.c (delete_insn_chain_and_dflow): New function.
3724 (peephole2_optimize): Replaced all flow references with df. Added
3725 local instance of df.
3726 * passes.c (init_optimization_passes): Moved clear_df before peephole2.
3728 2006-04-11 Kenneth Zadeck <zadeck@naturalbridge.com>
3730 * ifcvt.c (cond_exec_process_if_block, merge_if_block,
3731 noce_process_if_block, cond_move_process_if_block,
3732 process_if_block, find_if_header, find_cond_trap, find_if_case_1,
3733 find_if_case_2, dead_or_predicable): Threaded local copy of df
3734 thru the call stack.
3735 (merge_if_block, find_cond_trap, find_if_case_1, find_if_case_2,
3736 dead_or_predicable): Added code to update df in place.
3737 (if_convert): Removed parameter concerned with correct dataflow
3738 info, it now always is. Created instance of df. Removed code to
3739 update old flow info.
3740 (rest_of_handle_if_after_reload): Removed unnecessary calls to
3741 cleanup_cfg.
3742 * passes.c (init_optimization_passes): Moved clear_df to before
3743 last ifconvert. Renamed pass_cprop to pass_cprop_hardreg.
3744 * regrename.c (rest_of_handle_cprop): Renamed pass_cprop to
3745 pass_cprop_hardreg.
3746 * tree-pass.h: Renamed cprop to cprop_hardreg.
3748 2006-04-11 Kenneth Zadeck <zadeck@naturalbridge.com>
3750 * sched-ebb.c (schedule_ebbs): Removed code to update dataflow
3751 after scheduling and removed unused parm from
3752 reposition_prologue_and_epilogue_notes.
3753 * sched-rgn.c (schedule_insns): Ditto.
3754 (rest_of_handle_sched): Added temp hack to rebuild flow based dataflow
3755 until flow is permanently removed.
3756 * haifa-sched.c (init_glat): Modified to create glat from df info.
3757 (attach_life_info, attach_life_info1, check_reg_live): Removed.
3758 (free_glat): Now cleans up df.
3759 * modulo-sched.c (compute_jump_reg_dependencies): Removed df parm.
3760 * ifcvt.c (rest_of_handle_if_conversion): Added code to clean up
3761 flow based reg_deaths after first call to ifconvert.
3762 * function.c (reposition_prologue_and_epilogue_notes): Removed
3763 unused parm.
3764 * rtl.h (reposition_prologue_and_epilogue_notes): Ditto.
3765 * sched-int.h (check_reg_live): Removed.
3767 2006-04-10 Kenneth Zadeck <zadeck@naturalbridge.com>
3769 * df-core.c (reset_df_after_reload, clear_df): Added return to
3770 make compatible with pass manager.
3771 * dce.c (rest_of_handle_dce, rest_of_handle_fast_dce,
3772 rest_of_handle_dse): Ditto.
3774 2006-04-09 Kenneth Zadeck <zadeck@naturalbridge.com>
3776 * regrename.c (merge_overlapping_regs, regrename_optimize):
3777 Threaded private instance of df.
3778 (regrename_optimize): Created private instance of df, removed
3779 all references or flow.
3780 (copyprop_hardreg_forward): Removed all references to flow.
3781 (gate_handle_regrename): Split reg rename and cprop into separate
3782 passes.
3783 (gate_handle_cprop): New function.
3784 (pass_cprop): New pass structure.
3785 * tree-pass.h (pass_cprop): New pass structure.
3786 * passes.c (init_optimization_passes): Added cprop pass and
3787 moved clear_df pass closer to beginning.
3789 2006-04-08 Kenneth Zadeck <zadeck@naturalbridge.com>
3791 * tree-pass.h (pass_split_after_reload, pass_branch_target_load_optimize1
3792 pass_branch_target_load_optimize2): Added.
3793 (pass_branch_target_load_optimize): Deleted.
3794 * flow.c (rest_of_handle_flow2): Split the calls to split_all_insns and
3795 branch_target_load_optimize into their own passes.
3796 * passes.c (init_optimization_passes): Ditto.
3797 (init_optimization_passes): Moved clear_df pass to before
3798 second branch_target_load_optimize pass.
3799 * bt-load (compute_defs_uses_and_gen, build_btr_def_use_webs,
3800 migrate_btr_defs): Threaded private copy of df into these functions.
3801 (branch_target_load_optimize): Made private and add local
3802 instance of df. Removed all references to flow.
3803 (rest_of_handle_branch_target_load_optimize1): New function.
3804 (rest_of_handle_branch_target_load_optimize): Renamed to
3805 rest_of_handle_branch_target_load_optimize2.
3806 rtl.h (branch_target_load_optimize): Removed.
3808 2006-04-08 Kenneth Zadeck <zadeck@naturalbridge.com>
3810 * sched-ebb.c (init_ready_list, can_schedule_ready_p, new_ready,
3811 compute_jump_reg_dependencies, schedule_ebb, sched_analyze,
3812 schedule_block): Changed to pass instance of df.
3813 (compute_jump_reg_dependencies): Changed to use local instance
3814 of dataflow.
3815 * ddg.c (build_intra_loop_deps, sched_analyze,
3816 build_intra_loop_deps): Changed to pass instance of df.
3817 * ddg.h: added forward reference to struct df.
3818 * haifa-sched.c (schedule_insns, schedule_insn,
3819 schedule_block): Changed to pass instance of df.
3820 * modulo-sched (compute_jump_reg_dependencies): Ditto.
3821 (sms_schedule): Added call to do dce when stated.
3822 * sched-deps.c (sched_analyze_insn, sched_analyze):
3823 Changed to pass instance of df.
3824 * rtl.h (schedule_insns, schedule_ebbs): Ditto.
3825 * sched-int.h (init_ready_list, can_schedule_ready_p, new_ready,
3826 compute_jump_reg_dependencies, sched_analyze, schedule_block):
3827 Ditto.
3828 * sched-rgn.c (check_live_1, update_live_1, check_live,
3829 update_live, init_ready_list, can_schedule_ready_p, new_ready,
3830 compute_jump_reg_dependencies, compute_block_backward_dependences,
3831 schedule_region, schedule_insns): Ditto.
3832 (schedule_insns): Removed call to update_life_info when finished.
3833 (rest_of_handle_sched, rest_of_handle_sched2): Creates local
3834 instance of df.
3835 * passes.c (init_optimization_passes): moved clear_df pass
3836 earlier.
3837 * Makefile.in (df-core.o): Added except.h and dce.h
3838 (modulo-sched.o): Added DF_H.
3839 * recog.c (split_all_insns): Removed old code that was used to
3840 update dataflow.
3841 * reg-stack.c (rest_of_handle_stack_regs): Removed ifdefed out code.
3843 2006-04-07 Kenneth Zadeck <zadeck@naturalbridge.com>
3845 * recog.c (split_all_insns): Removed parameter and code to
3846 update dataflow.
3847 * sched-rgn.c (rest_of_handle_sched2): Removed parm to
3848 split_all_insns.
3849 * flow.c (rest_of_handle_flow2): Ditto.
3850 (rest_of_handle_split_all_insns): Added call to update old
3851 dataflow after this pass.
3852 (rest_of_handle_split_after_reload,
3853 rest_of_handle_split_before_regstack): New function.
3854 (pass_split_after_reload): New structure.
3855 * rtl.h (split_all_insns): Removed param.
3856 * bb-reorder.c (rest_of_handle_reorder_blocks): Removed
3857 references to flow.
3858 * reg-stack.c (subst_stack_regs_pat): Removed unnecessary
3859 assertion.
3861 2006-04-07 Daniel Berlin <dberlin@dberlin.org>
3862 Kenneth Zadeck <zadeck@naturalbridge.com>
3864 * regoc.c (dbr_schedule): Added parm to call to df_lr_add_problem.
3865 * ifcvt.c (if_convert): Ditto.
3866 * modulo-sched.c (sms_schedule): Ditto.
3867 * reg-stack.c (reg_to_stack): Ditto.
3868 * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
3869 (rest_of_handle_global_alloc): Removed call to df_set_state.
3870 * basic_block.h (clear_reg_deaths): New function.
3871 * flow.c: (clear_reg_deaths): New function.
3872 (rest_of_handle_life): Added parm to call to df_lr_add_problem and
3873 df_ur_add_problem.
3874 * df-scan.c (df_scan_free_internal): Added code to clear new
3875 bit vectors.
3876 (df_scan_alloc): Added extra parameter and code to initialize
3877 new bit vectors.
3878 (df_scan_dump): Added code to dump new bit vectors.
3879 (df_problem problem_SCAN): Added extra field.
3880 (df_scan_add_problem): Added flags parameter.
3881 (df_rescan_blocks): Added code to remove deleted blocks from
3882 bitmap and extra parm to call to df_scan_alloc.
3883 (df_insn_create_insn_record): Removed return value.
3884 (df_set_state): Removed function.
3885 (df_ref_record, df_bb_refs_record, df_record_entry_block_defs,
3886 df_record_exit_block_uses): Changed the way flags are processed.
3887 (df_bb_refs_record, df_refs_record, df_record_exit_block_uses):
3888 Restructured scanning to fixed hard regs so bitmaps could be
3889 recorded for later use.
3890 (df_has_eh_preds): Now public.
3891 * df-core.c (df_mvs_dump, df_set_flags, df_clear_flags,
3892 df_delete_basic_block): New function.
3893 (df_init): Changed location of flags.
3894 (df_add_problem): Added flags parameter and the way flags are
3895 processed.
3896 (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref,
3897 debug_df_chain): Improved debugging output.
3898 (clear_df): Added call to clear_reg_deaths.
3899 * df.h: Some reordering to remove forward references.
3900 (dataflow.flags): New field.
3901 (df.flag): Deleted field.
3902 (df_alloc_function): Added additional bitmap parameter.
3903 (df_dependent_problem_function): New type.
3904 (df_problem.changeable_flags): New field.
3905 (df_ref_flags.DF_SCAN_INITIAL,
3906 DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed.
3907 (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df
3908 parameter.
3909 (df_add_problem, df_ru_add_problem, df_rd_add_problem,
3910 df_lr_add_problem, df_ur_add_problem, df_urec_add_problem,
3911 df_ri_add_problem, df_scan_add_problem): Added flags parameter.
3912 (df_set_state): Removed function.
3913 (df_set_flags, df_clear_flags, df_delete_basic_block, df_has_eh_preds) New functions.
3914 * df-problems.c (df_get_dependent_problem): Deleted function.
3915 (df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc,
3916 df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks
3917 parameter.
3918 (df_ru_alloc, df_rd_alloc): Now resets all blocks.
3919 (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump,
3920 df_chains_dump): Fixed crash if problem was never run.
3921 (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
3922 df_ur_add_problem, df_urec_add_problem, df_chain_add_problem,
3923 df_ri_add_problem): Processes flags in uniform manner.
3924 (df_lr_bb_local_compute): Fixed case to account for return value
3925 correctly.
3926 (df_lr_bb_local_compute): Changed processing of exit block.
3927 (df_lr_transfer_function): Added hook to call dce.
3928 (df_lr_free): Added lr problem data.
3929 (df_set_notes_for_mw, df_reg_lifetime): Removed function.
3930 (df_lr_simulate_artificial_refs_at_end, df_lr_simulate_one_insn,
3931 df_kill_notes, df_set_unused_notes_for_mw, df_set_dead_notes_for_mw):
3932 New function.
3933 (df_ri_alloc, df_ri_bb_compute, df_create_unused_note,
3934 df_ri_bb_compute, df_ri_compute, df_ri_free, df_ri_add_problem):
3935 Added functionality to compute register information.
3936 dce.c (deletable_insn_p): Cannot delete PREFETCHes.
3937 (delete_unmarked_insns): Also delete noop moves as well as support for
3938 calling dce from df.
3939 (prescan_insns_for_dce, rest_of_handle_dce, end_fast_dce,
3940 dce_process_block, rest_of_handle_fast_dce,
3941 rest_of_handle_dse): Restructured to handle being directly called from
3942 df.
3945 2006-03-14 Kenneth Zadeck <zadeck@naturalbridge.com>
3947 * tree-pass.h: Added pass to clear other dataflow infomation out.
3948 * final.c (rest_of_handle_final, rest_of_clean_state): Cleared out
3949 references to df.
3950 (rest_of_clean_state) Added regstack_completed.
3951 * reorg.c (fill_simple_delay_slots, fill_slots_from_thread,
3952 fill_eager_delay_slots, make_return_insns): Added df parameter to function.
3953 (make_return_insns, dbr_schedule) Added df parameter to calls.
3954 * flow.c (update_life_info): Added glue code to df calls.
3955 * df-scan.c (df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added
3956 code to properly handle multiword hard registers.
3957 (df_ref_create_structure, df_ref_record): Added code to properly handle subregs.
3958 (df_ref_create_structure): Changed switching structure.
3959 (df_bb_refs_record): Fixed case where duplicate artificial refs
3960 were created.
3961 (df_record_entry_block_defs): Added code to make stack pointer
3962 live in entry block. Refined cases where frame pointer is needed.
3963 * df-core.c (df_mvs_dump, clear_df): New function.
3964 (pass_clear_df): New pass structure.
3965 (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref,
3966 debug_df_chain): Improved debugging output.
3967 * df.h: Some reordering to remove forward reference.
3968 (df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL): New fields.
3969 (df_ref_flags.DF_REF_DIES_AFTER_THIS_USE): Removed.
3970 (df_mw_hardreg): New struct.
3971 (DF_INSN_UID_MWS): New macro.
3972 (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df
3973 parameter.
3974 * rtl.h (regstack_completed): New global var.
3975 * resource.c (mark_target_live_regs): Added passed in instance of
3976 df.
3977 * resource.h (mark_target_live_regs): Ditto.
3978 * df-problems.c (df_chain_dump): Removed df parameter.
3979 (df_ru_bb_local_compute_process_def,
3980 df_rd_bb_local_compute_process_def, df_lr_bb_local_compute,
3981 df_lr_bb_local_compute, df_chain_create_bb): Made subreg aware.
3982 (df_ru_bb_local_compute, df_rd_bb_local_compute,
3983 df_lr_bb_local_compute, df_lr_bb_local_compute,
3984 df_chain_create_bb): Cleanup to use proper macros.
3985 (df_ur_local_finalize, df_ur_local_finalize): Removed unnecessary
3986 code to fixup bitvectors.
3987 (df_ri_alloc): Cleared lifetime.
3988 (df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw,
3989 df_create_unused_note): New function.
3990 (df_ri_bb_compute, df_ri_compute): Added code to create/update
3991 REG_DEAD and REG_UNUSED notes.
3992 * reg-stack.c (regstack_completed): New variable.
3993 (reg_to_stack): Modified to use it's own instance of df.
3994 (rest_of_handle_stack_regs): Removed most cleanup code.
3995 * Makefile.in (reorg.o, RESOURCE_H): Added dependancy to df.h.
3996 (final.o): Removed dependency to df.h
3997 * passes.c (pass_magic_life): Removed.
3998 (pass_clear_df): Added.
3999 * dce.c (prescan_insns_for_dce, end_fast_dce): Now works if no instance of
4000 df is available.
4001 (dce_process_block): Made subreg aware.
4002 (rest_of_handle_fast_dce): Reset bitvectors when iterating.
4003 (prescan_insns_for_dse): Removed useless code.
4005 2006-02-06 Daniel Berlin <dberlin@dberlin.org>
4007 * doc/rtl.texi: Document REG_LIBCALL_ID.
4008 * optabs.c (libcall_id): New variable.
4009 (emit_no_conflict_block): Use it to emit
4010 REG_LIBCALL_ID.
4011 (emit_libcall_block): Ditto.
4012 * combine.c (distribute_notes): Deal with
4013 REG_LIBCALL_ID.
4014 * reg-notes.def (LIBCALL_ID): New note.
4015 * dce.c (marked_libcalls): New variable.
4016 (in_libcall): Removed.
4017 (mark_insn): Mark which libcalls we need to fully mark.
4018 (mark_libcall_insns): New function.
4019 (end_dce): Free marked_libcalls.
4020 (init_dce): Allocate marked_libcalls.
4021 Call mark_libcall_insns.
4023 2006-01-17 Kenneth Zadeck <zadeck@naturalbridge.com>
4024 * df-core.c (df_iterative_dataflow): Added debugging assert.
4025 (df_insn_uid_debug): New debugging function.
4026 (df_insn_debug): Changed to used df_insn_uid_debug.
4027 (df_analyze_problem): Made public.
4028 * df.h (df_analyze_problem): Ditto.
4029 * cfgcleanup.c (cleanup_cfg): Now calls run_fsst_dce.
4030 * flow.c (update_life_info): Ditto.
4031 * dce.c (init_dce, mark_insn,
4032 mark_nonreg_stores, prescan_insns_for_dce): Added parameter so
4033 that they could be called from both handle_rest_of_dce and
4034 handle_rest_of_fast_dce.
4035 (marked_insn_p): Added code to be tolerant of artifical defs,
4036 which do not have insns.
4037 (mark_nonreg_stores_2): New function.
4038 (mark_artificial_uses, mark_reg_dependencies, store_base_local,
4039 mark_escaping_stores, mark_dependent_stores,
4040 prescan_insns_for_dse): Added parameter to mark_insn.
4041 (rest_of_handle_dce): Added parameter to prescan_insns_for_dce.
4042 (record_stores): Added parameter to mark_non_reg_stores.
4043 (dce_process_block, rest_of_handle_fast_dce, gate_fast_dce,
4044 run_fast_dce): New functions to do dce faster.
4045 (rest_of_handle_dse) Added parameter to init_dce.
4046 * dce.h (run_fast_dce): Added declaration.
4048 2006-01-17 Kenneth Zadeck <zadeck@naturalbridge.com>
4050 * df-scan.c (df_hard_reg_init): Moved declaration of i outside macro.
4052 2006-01-17 Ian Lance Taylor <ian@airs.com>
4054 * combine.c (combine_instructions): Pass instruction
4055 to note_stores and set_nonzero_bits_and_sign_copies.
4056 (set_nonzero_bits_and_sign_copies): We can't assume
4057 anything about non-zero bits for registers initialized with
4058 themselves if the register is not live on entry to the block.
4061 2005-01-17 Kenneth Zadeck <zadeck@naturalbridge.com>
4063 PR dataflow/25799
4064 * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
4065 Corrected confluence operator to remove bits from op2 before oring
4066 with op1 rather than removing bits from op1.
4067 * (df_ru_transfer_function): Corrected test on wrong bitmap which
4068 caused infinite loop.
4071 2005-01-17 Kenneth Zadeck <zadeck@naturalbridge.com>
4073 * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
4074 be able to clean out basic block when not necessary.
4075 (df_scan_free): Fixed to properly delete information if df is
4076 unused before calling df_finish.
4077 (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
4078 df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
4079 or comment typos.
4080 (df_bb_refs_delete): New function.
4081 (df_refs_delete): Moved per block code to df_bb_refs_delete.
4082 * df-core.c (df_set_blocks): Added code to properly clean out
4083 unused blocks if they are not part of the blocks to consider.
4084 (df_compact_blocks): Added basic block parameter to free_bb_fun to
4085 be able to clean out basic block when not necessary
4086 * df.h (df_free_bb_function): Ditto.
4087 (df_bb_refs_delete): New function.
4088 * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
4089 df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
4090 basic block parameter to be able to clean out basic block when not
4091 necessary.
4092 (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
4093 (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
4094 Fixed to properly delete information if df is unused before
4095 calling df_finish.
4097 2006-01-06 Daniel Berlin <dberlin@dberlin.org>
4098 Kenneth Zadeck <zadeck@naturalbridge.com>
4100 * df-scan.c (df_reg_use_gen, df_reg_def_gen): Removed.
4101 (df_insn_contains_asm_1): New function.
4102 (df_insn_contains_asm): Rewritten to use for_each_rtx.
4103 (df_insn_refs_record): Fixed call to df_insn_contains_asm and
4104 the way calls are processed.
4105 (df_insn_refs_record, df_bb_refs_record): Changed calls to not
4106 need df_reg_use_gen or df_reg_def_gen.
4107 * loop-invariant.c (free_inv_motion_data): Removed duplicated code typo.
4109 2005-12-30 Kenneth Zadeck <zadeck@naturalbridge.com>
4111 * df-core.c (df_find_def, df_find_use): Added subreg aware code.
4112 (df_reg_defined, df_reg_used): New function.
4113 * df.h (df_reg_defined, df_reg_used): New function.
4114 * loop-invariant.c (struct invariant, hash_invariant_expr,
4115 eq_invariant_expr, find_or_insert_inv, find_or_insert_inv,
4116 find_identical_invariants, merge_identical_invariants,
4117 find_defs, create_new_invariant, check_dependencies,
4118 find_invariant_insn, find_invariants, get_inv_cost,
4119 best_gain_for_invariant, set_move_mark, move_invariants,
4120 free_inv_motion_data): Functions added from mainline patch.
4121 (invariant_for_use, hash_invariant_expr_1, invariant_expr_equal_p,
4122 check_dependencies, create_new_invariant, find_invariant_insn
4123 move_invariant_reg): Functions modified from mainline patch to be
4124 consistent with latest df.
4126 2005-12-22 Paolo Bonzini <bonzini@gnu.org>
4128 * df-scan.c (df_ref_unlink): Fix thinko when REF == CHAIN.
4130 2005-12-22 Danny Berlin <dberlin@dberlin.org>
4131 Richard Sandiford <richard@codesourcery.com>
4132 Kenneth Zadeck <zadeck@naturalbridge.com>
4134 * tree-pass.h: Added passes for new dce and dse.
4135 * flow.c (update_life_info, propagate_block): Added hooks to
4136 call new dead code elimination.
4137 * common.opt (flag_flow_dce, flag_new_dce): Ditto.
4138 * passes.c (init_optimization_passes): Ditto.
4139 * cfgcleanup.c (cleanup_cfg): Ditto.
4140 * timevar.def: New time vars for dce and dse.
4141 (propagate_block_delete_insn): Added debugging.
4142 * dce.c: New File containing dead code elimination and dead
4143 store elimination based on df.
4145 2005-12-19 Kenneth Zadeck <zadeck@naturalbridge.com>
4147 * flow.c (update_life_info, count_or_remove_death_notes): Fixed
4148 latent bug that could happen if update_life_info was called with a
4149 blocks parameter and the call to cleanup_cfg actually deleted one
4150 of those blocks.
4151 * loop-invariant.c (move_loop_invariants): Fixed df
4152 initialization.
4153 * struct-equiv.c (struct_equiv_init): Made dataflow compatible with
4154 df.
4157 2005-12-18 Daniel Berlin <dberlin@dberlin.org>
4158 Kenneth Zadeck <zadeck@naturalbridge.com>
4160 * fwprop.c (local_ref_killed_between_p): New Function.
4161 (use_killed_between, varying_mem_p, all_uses_available_at,
4162 update_df, subst, forward_propagate_subreg,
4163 forward_propagate_and_simplify, forward_propagate_into, fwprop,
4164 fwprop_addr): Changes to support modifications to df datastructures.
4165 * ddg.c (add_deps_for_def, add_deps_for_use, build_inter_loop_deps):
4166 Ditto.
4167 * flow.c (verify_local_live_at_start, update_life_info,
4168 update_life_info, initialize_uninitialized_subregs,
4169 propagate_one_insn, init_propagate_block_info,
4170 init_propagate_block_info, regno_clobbered_at_setjmp,
4171 rest_of_handle_life): Ditto.
4172 * modulo-sched.c (sms_schedule): Ditto.
4173 * web.c (union_defs, entry_register, web_main): Ditto.
4174 * global.c (global_alloc, global_conflicts, mark_elimination,
4175 build_insn_chain, rest_of_handle_global_alloc): Ditto.
4176 * ifcvt.c (find_if_case_1, if_convert): Ditto.
4177 * loop_invariant.c (find_defs, record_use, find_invariant_insn,
4178 find_invariants_to_move, move_invariant_reg, move_invariant_reg,
4179 free_inv_motion_data, move_loop_invariants):
4180 * bb-reorder.c (rest_of_handle_reorder_blocks): Ditto.
4181 * reg-stack.c (reg_to_stack): Ditto.
4182 * postreload.c (reload_combine): Changed set reference to
4183 reflect different dataflow problem.
4184 * reload.c (push_reload, find_dummy_reload): Ditto.
4185 * postreload.c (rest_of_handle_postreload): Fixed typo in comment.
4186 * tree-pass.h: Added pass_reset_df_after_reload.
4187 * df.c: Removed, rewritten as df-core.c, df-problems.c and df-scan.c.
4188 * df-scan.c: The scanning fuctions, once in df.c, completely
4189 rewritten so that they now fully model the functionality of
4190 register usage at the backend.
4191 * cfgrtl.c (dump_regset_in, dump_regset_out): New dataflow
4192 * print functions.
4193 (rtl_dump_bb, print_rtl_with_bb): Changed to use
4194 dump_regset_in, dump_regset_out).
4195 * sched_deps (sched_analyze_1): Changed to used renamed
4196 df_read_modify_subreg_p (was read_modify_subreg_p).
4197 (df_scan_free_internal, df_scan_get_bb_info,
4198 df_scan_set_bb_info, df_scan_free_bb_info, df_scan_alloc,
4199 df_scan_free, df_scan_dump, df_scan_add_problem,
4200 df_grow_reg_info, df_grow_ref_info, df_grow_insn_info,
4201 df_rescan_blocks, df_ref_create, df_get_artificial_defs,
4202 df_get_artificial_uses, df_reg_chain_create, df_ref_unlink,
4203 df_reg_chain_unlink, df_ref_remove,
4204 df_insn_create_insn_record, df_insn_refs_delete,
4205 df_refs_delete, df_reorganize_refs, df_reg_use_gen,
4206 df_reg_def_gen, df_set_state, df_ref_create_structure,
4207 df_ref_record, df_read_modify_subreg_p, df_def_record_1,
4208 df_defs_record, df_uses_record, df_insn_contains_asm,
4209 df_insn_refs_record, df_bb_refs_record, df_refs_record,
4210 df_mark_reg, df_record_exit_block_uses, df_hard_reg_init): New functions.
4211 * df-core.c: The core dataflow solver and glue routines for
4212 rtl dataflow.
4213 (df_init, df_add_problem, df_set_blocks, df_finish,
4214 df_hybrid_search_forward, df_hybrid_search_backward,
4215 df_iterative_dataflow, df_prune_to_subcfg,
4216 df_analyze_problem, df_analyze, df_get_bb_info,
4217 df_set_bb_info, df_analyze_simple_change_some_blocks,
4218 df_analyze_simple_change_one_block, df_compact_blocks,
4219 df_bb_replace, df_bb_regno_last_use_find,
4220 df_bb_regno_first_def_find, df_bb_regno_last_def_find,
4221 df_insn_regno_def_p, df_find_def, df_find_use, df_dump,
4222 df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
4223 df_insn_debug_regno, df_regno_debug, df_ref_debug,
4224 debug_df_insn, debug_df_reg, debug_df_regno, debug_df_ref
4225 debug_df_defno, debug_df_useno, reset_df_after_reload): New functions.
4226 * df-problems.c: Seven concrete dataflow problems that use the scanning
4227 in df-scan.c and are solved by the engine in df-core.c.
4228 (df_get_dependent_problem, df_chain_create,
4229 df_chain_unlink, df_chain_copy, df_get_live_in,
4230 df_get_live_out, df_grow_bb_info, df_chain_dump,
4231 df_print_bb_index, df_ref_bitmap, df_set_seen,
4232 df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
4233 df_ru_free_bb_info, df_ru_alloc,
4234 df_ru_bb_local_compute_process_def,
4235 df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
4236 df_ru_local_compute, df_ru_init_solution,
4237 df_ru_confluence_n, df_ru_transfer_function, df_ru_free,
4238 df_ru_dump, df_ru_add_problem, df_rd_get_bb_info,
4239 df_rd_set_bb_info, df_rd_free_bb_info, df_rd_alloc,
4240 df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
4241 df_rd_local_compute, df_rd_init_solution,
4242 df_rd_confluence_n, df_rd_transfer_function, df_rd_free,
4243 df_rd_dump, df_rd_add_problem, df_lr_get_bb_info,
4244 df_lr_set_bb_info, df_lr_free_bb_info, df_lr_alloc,
4245 df_lr_bb_local_compute, df_lr_local_compute, df_lr_init,
4246 df_lr_confluence_0, df_lr_confluence_n,
4247 df_lr_transfer_function, df_lr_free, df_lr_dump,
4248 df_lr_add_problem, df_ur_get_bb_info, df_ur_set_bb_info,
4249 df_ur_free_bb_info, df_ur_alloc, df_ur_bb_local_compute,
4250 df_ur_local_compute, df_ur_init, df_ur_local_finalize,
4251 df_ur_confluence_n, df_ur_transfer_function, df_ur_free,
4252 df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
4253 df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
4254 df_urec_mark_reg_change, df_urec_check_earlyclobber,
4255 df_urec_mark_reg_use_for_earlyclobber,
4256 df_urec_mark_reg_use_for_earlyclobber_1,
4257 df_urec_bb_local_compute, df_urec_local_compute,
4258 df_urec_init, df_urec_local_finalize, df_urec_confluence_n,
4259 df_urec_transfer_function, df_urec_free, df_urec_dump,
4260 df_urec_add_problem, df_chain_alloc,
4261 df_chain_create_bb_process_use, df_chain_create_bb,
4262 df_chain_finalize, df_chain_free, df_chains_dump,
4263 df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
4264 df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
4265 df_reg_lifetime) New functions.
4266 df.h: Complete rewrite to support new df-problems.c, df-scan.c and
4267 df-core.c.
4269 2005-12-14 Kenneth Zadeck <zadeck@naturalbridge.com>
4271 * bitmap.c (bitmap_clear_range): Removed extra debugging.
4273 2005-12-12 Paolo Bonzini <bonzini@gnu.org>
4275 * rtl.h (find_occurrence): Declare.
4276 * rtlanal.c (find_occurrence): New.
4277 (loc_mentioned_in_p): Accept a NULL value for IN.
4278 (commutative_operand_precedence): Remove useless code looking
4279 for constant RTX_EXTRA rtxen.
4280 * common.opt (-fforward-propagate): New.
4281 * tree-pass.h: Add forward propagation passes.
4282 * passes.c: Ditto.
4283 * timevar.def: Add forward propagation timevar.
4284 * fwprop.c: New file.
4285 * Makefile.in: Add fwprop.o dependencies.
4287 2005-11-28 Paolo Bonzini <bonzini@gnu.org>
4289 * config/sh/sh.c (sh_output_mi_thunk): Use df_finish.
4291 2005-11-17 Paolo Bonzini <bonzini@gnu.org>
4293 * df.h (struct df_reach): Add size field.
4294 * df.c (df_realloc_reach_bitmaps, df_renumber_refs): New.
4295 (df_reg_use_chain_create, df_reg_def_chain_create): Use them.
4296 Fix GNU coding standards compliancy.
4298 2005-11-11 Richard Earnshaw <richard.earnshaw@arm.com>
4300 * df.c (df_chain_create): Move declaration of bb outside define
4301 for ENABLE_CHECKING.
4303 2005-11-08 Paolo Bonzini <bonzini@gnu.org>
4305 * df.c (df_local_ref_killed_between_p): Reinstate.
4307 2005-11-08 Daniel Berlin <dberlin@dberlin.org>
4308 Kenneth Zadeck <zadeck@naturalbridge.com>
4310 * bitmap.c (bitmap_element_free, bitmap_element_link, bitmap_and,
4311 bitmap_and_compl, bitmap_ior, bitmap_ior_into, bitmap_xor,
4312 bitmap_xor_into): Fixed latent performance issue where current
4313 was being properly kept up to date.
4314 (bitmap_clear_range, bitmap_compl_and_into): New functions to support
4315 dataflow analysis.
4316 * df.c (df_rd_confluence_n, df_alloc_reach_bitmaps, df_free_reach_bitmaps,
4317 df_clear_reach_bitmaps, df_ru_confluence_n, df_lr_confluence_0,
4318 df_lr_confluence_n, df_init, df_dump): Changed the way EH_USES is processed.
4319 (df_bitmaps_alloc, df_bitmaps_free,
4320 df_bb_reg_def_chain_create, df_bb_reg_def_chain_create,
4321 df_reg_use_chain_create, df_rd_transfer_function,
4322 df_alloc_reach_bitmaps, df_ref_bitmap, df_bb_rd_local_compute,
4323 df_rd_local_compute, df_bb_ru_local_compute, df_analyze,
4324 df_analyze_subcfg, df_analyze_simple_change_some_blocks): Fixed
4325 performance problems by grouping all defs and uses
4326 for the same pseudo into contigious ranges.
4327 (df_bb_du_chain_create, df_bb_ud_chain_create): Combined in
4328 new function df_bb_chain_create.
4329 (df_chain_create, df_alloc_reach_bitmaps, df_free_reach_bitmaps,
4330 df_clear_reach_bitmaps, df_ref_bitmap): New function.
4331 (df_rd_init, df_rd_confluence_n, df_rd_transfer_function,
4332 df_rd_set_dflow, df_ru_transfer_function, df_ru_confluence_n,
4333 df_ru_transfer_function, df_ru_set_dflow, df_lr_transfer_function,
4334 df_lr_set_dflow, df_lr_confluence_n, df_ur_transfer_function,
4335 df_ur_set_dflow, df_ur_init, df_ur_transfer_function, df_ur_set_dflow
4336 df_ur_confluence_n, hybrid_search_forward, hybrid_search_backward
4337 iterative_dataflow): Changed interface for dataflow callback
4338 functions to hide where the source of bitmaps.
4339 (df_rd_set_bitmaps, df_ru_set_bitmaps, df_lr_set_bitmaps,
4340 df_ur_set_bitmaps, df_bitmap_ior_edge): Removed as part of
4341 changing dataflow callback interface.
4342 (df_free, df_ref_create, df_ref_record_1,
4343 df_record_exit_block_uses, df_refs_record, df_exit_lr_local_compute,
4344 df_insn_move_before, df_local_ref_killed_between_p,
4345 df_bb_regno_last_def_find, df_chain_dump, df_dump):
4346 Added chains that go to artifical uses in exit block.
4347 (df_exit_bb_reg_use_chain_create, df_exit_bb_chain_create):
4348 New functions to support artifical uses in exit block.
4349 (df_insn_refs_record): Added new DF_REF_CLOBBER ref type to
4350 avoid creation of artifical chains for clobbers at call sites.
4352 2005-11-03 Paolo Bonzini <bonzini@gnu.org>
4353 Steven Bosscher <stevenb@suse.de>
4355 * df.c (df_free): Fix call to df_bitmaps_free.
4356 (df_bb_regno_last_def_find): Make it return what it is supposed
4357 to return.
4358 (df_local_ref_killed_between_p): New.
4360 2005-11-01 Daniel Berlin <dberlin@dberlin.org>
4361 Kenneth Zadeck <zadeck@naturalbridge.com>
4363 * flow.c (update_life_info): Added debugging.
4364 (init_propagate_block_info): Fixed typo.
4365 * df.c (df_refs_unlink, df_ref_record_1, df_ref_record,
4366 read_modify_subreg_p, df_def_record_1, df_insn_refs_record):
4367 Fixed control of when regs_ever_live is modified.
4368 * combine.c: Documentation rot.
4369 * reload1.c: Used wrong type of comment.
4371 2005-10-31 Jan Hubicka <jh@suse.cz>
4373 * reg-stack.c (subst_stack_regs_pat): Expect USEs to be ignored for
4374 liveness.
4375 (change_stack): Initialize partially dead registers.
4376 (convert_regs_1): Handle dead return values.
4377 (reg_to_stack): Switch to partial liveness.
4378 (propagate_stack): Push in partially live stuff.
4380 2005-10-25 Daniel Berlin <dberlin@dberlin.org>
4381 Kenneth Zadeck <zadeck@naturalbridge.com>
4383 * cfgrtl.c (print_rtl_with_bb): Fixed problem with debugging
4384 output of bitmaps.
4385 * df.c (mark_reg_change): Fixed problem computing sizes of hard regs.
4386 * reload1.c (reload): Fixed over agressive updating of bitmaps.
4387 * sched-rgn.c (schedule_insns): Cleaned away some useless verification
4388 code.
4389 (rest_of_handle_sched2): Removed debugging.
4392 2005-10-24 Kenneth Zadeck <zadeck@naturalbridge.com>
4394 * sched-rgn.c (check_live_1, update_live_1, rest_of_handle_sched):
4395 Converted to use partially available liveness.
4396 (init_regions, schedule_insns, rest_of_handle_sched):
4397 Removed assertion checking based on death notes.
4400 2005-10-23 Daniel Berlin <dberlin@dberlin.org>
4401 Kenneth Zadeck <zadeck@naturalbridge.com>
4403 * df.c (df_bitmaps_alloc, df_lr_local_compute, df_compute_all_blocks):
4404 Removed df->all_blocks.
4405 (df_lr_local_compute): Added flag to indicate that
4406 blocks was really the whole function.
4407 (df_ref_record): Fixed missing case for memory refs.
4408 (df_insn_refs_record): Fixed regs ever live processing.
4409 (df_bb_refs_record): Removed debugging code.
4410 (df_bb_lr_local_compute, notice_stack_pointer_modification,
4411 df_bb_lr_local_compute): Moved stack pointer modification
4412 detection code back to flow.c.
4413 (df_bb_lr_local_compute, hybrid_search_forward,
4414 hybrid_search_backward): Formatting cleanup.
4415 (df_compute_all_blocks, notice_stack_pointer_modification):
4416 Removed.
4417 (df_analyze): Changed the definition of whole program to be all
4418 reachable blocks rather than all blocks.
4419 (df_analyze_subcfg, df_analyze_simple_change_some_blocks): Added
4420 parameter to df_lr_local_compute.
4421 (df_rtx_reg_replace): Fixed way it decided it was processing
4422 entire function.
4423 * df.h: Removed all_blocks from struct df definition.
4424 * flow.c (notice_stack_pointer_modification_1,
4425 notice_stack_pointer_modification): Added back.
4426 (life_analysis): Added back call to
4427 notice_stack_pointer_modification.
4428 (struct tree_opt_pass pass_life, rest_of_handle_flow2):
4429 Added debugging.
4430 * gcse.c (gcse_main, bypass_jumps): Additional places where we had missed
4431 in renumbering entry and exit blocks.
4432 * global.c (global_alloc): Additional debugging code.
4435 2005-10-19 Daniel Berlin <dberlin@dberlin.org>
4437 * df.c (df_lr_local_compute): Fix thinko regarding pseudos and call
4438 defs.
4440 2005-10-19 Kenneth Zadeck <zadeck@naturalbridge.com>
4442 * df.c (df_bitmap_ior_edge, df_lr_confluence_0
4443 df_lr_confluence_n, df_ur_confluence_n, df_ur_set_bitmaps): New
4444 functions.
4445 (df_exit_lr_local_compute, dataflow_set_a_op_b): Removed
4446 functions.
4447 (df_ur_set_bitmaps, mark_reg_change, df_ur_local_finalize,
4448 mark_reg_use_for_earlyclobber, df_ur_local_compute,
4449 df_bb_reg_live_start, df_bb_reg_live_end, df_bb_reg_live_start_p,
4450 df_bb_reg_live_end_p): Renamed "reaching registers"
4451 problem (rr) to "uninitialized registers" problem.
4452 (df_free): Changed variables freed.
4453 (df_ref_record): Added more sophisticated hard register scan.
4454 (df_insn_refs_record): Changed way invalidated_by_call is
4455 processed.
4456 (df_bb_refs_record, df_exit_lr_local_compute,
4457 df_bb_lr_local_compute): Removed bad way to simulate edge functions.
4458 There are now real confluence functions.
4459 (notice_stack_pointer_modification): Disabled.
4460 (df_bb_lr_local_compute): Disabled call to
4461 notice_stack_pointer_modification. Added code to properly handle hard
4462 regs at call site.
4463 (df_lr_local_compute): Added more hard reg processing.
4464 Changed order exit block is processed.
4465 (df_init): Added some invariant hard regs initialization.
4466 (df_refs_process): Removed artifical special case.
4467 (df_print_bb_index, df_dump): Removed parameter to df_dump.
4468 (hybrid_search_forward, hybrid_search_backward): Added
4469 confluence function calls.
4470 (iterative_dataflow): Added hack to initialize in and out sets
4471 with hard registers. This will be removed later.
4472 * df.h: Removed DF_ARTIFICIAL_DEFS. Renamed "reaching registers".
4473 problem (rr) to "uninitialized registers" problem. Changed confluence
4474 operator to general confluence functions.
4475 * flow.c (verify_wide_reg, verify_local_live_at_start): Removed
4476 parameter to df_dump.
4477 * reg_stack.c (reg_to_stack): Ditto.
4478 * sched_rgn.c (init_regions, schedule_insns): Ditto.
4479 * web.c (web_main): Ditto.
4480 * flow.c: (update_life_info): Removed DF_ARTIFICIAL_DEFS.
4481 * global.c (global_alloc): Ditto.
4483 \f
4484 Copyright (C) 2005-2007 Free Software Foundation, Inc.
4486 Copying and distribution of this file, with or without modification,
4487 are permitted in any medium without royalty provided the copyright
4488 notice and this notice are preserved.