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12006-03-23 J"orn Rennecke <joern.rennecke@st.com>
2
3 * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
4 * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
5 * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
6 * config/sh/sh.opt (mdiv=): Amend description.
7 * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
8 (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
9 (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
10 SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
11 (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
12 Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
13 * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
14 (udivsi3, divsi3): Use them. Check TARGET_DIVIDE_CALL_TABLE /
15 TARGET_DIVIDE_CALL_FP.
16
172006-03-23 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
18
19 * haifa-sched.c (choose_ready): Fix type of the local variable.
20 Move local variables. Add comment.
21 (check_reg_live): Change signature. Make callable from debugger.
22 * sched-int.h (check_reg_live): Update signature.
23 * sched-ebb.c (check_reg_live): Update parameters.
24 * sched-rgn.c (check_reg_live): Ditto.
25 (region_head_or_leaf_p): Check pointer before dereferencing.
26 * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
27 before reload on optimization levels below 1.
28
292006-03-23 Richard Henderson <rth@redhat.com>
30
31 * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
32 tls symbols.
33
34 PR target/26347
35 * config/alpha/predicates.md (local_symbolic_operand): Reject
36 weak symbols.
37
382006-03-23 Andrew Pinski <pinskia@physics.uc.edu>
39
40 PR tree-opt/26795
41 * tree-ssa-pre.c (create_value_expr_from): Don't reject
42 expressions which have overflowed constants.
43
442006-03-23 Zdenek Dvorak <dvorakz@suse.cz>
45
46 * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.
47
482006-03-23 Zdenek Dvorak <dvorakz@suse.cz>
49
50 * cfgloopmanip.c (create_loop_notes): Removed.
51 * final.c (final_scan_insn): Do not handle loop notes.
52 * jump.c (squeeze_notes): Ditto.
53 * cfglayout.c (skip_insns_after_block,
54 duplicate_insn_chain): Ditto.
55 * cfgcleanup.c (rest_of_handle_jump2): Do not call
56 create_loop_notes.
57 * cfgloop.h (create_loop_notes): Declaration removed.
58
592006-03-23 Richard Sandiford <richard@codesourcery.com>
60
61 * varasm.c (output_constant_pool): Restore fnname and fndecl
62 arguments.
63 (assemble_start_function): Adjust call accordingly.
64 (assemble_end_function): Likewise.
65
662006-03-22 Volker Reichelt <reichelt@igpm.rwth-aachen.de>
67
68 PR mudflap/26790
69 * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.
70
71 PR mudflap/26789
72 * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.
73
742006-03-22 Volker Reichelt <reichelt@igpm.rwth-aachen.de>
75
76 PR driver/22600
77 * system.h (ICE_EXIT_CODE): New macro.
78 * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
79 (diagnostic_action_after_output): Likewise.
80 * gcc.c (fatal_ice): New function.
81 (execute): Use it instead of fatal.
82 (fancy_abort): Likewise.
83 * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.
84
852006-03-22 Jeff Law <law@redhat.com>
86
87 * loop-unroll.c (analyze_iv_to_split_insn): Handle
88 iv_analyze_result returning false.
89
902006-03-22 Jie Zhang <jie.zhang@analog.com>
91
92 * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.
93
942006-03-22 Richard Henderson <rth@redhat.com>
95
96 PR middle-end/26084
97 * except.c (duplicate_eh_regions_0): New.
98 (duplicate_eh_region_1): Duplicate the children of the node as
99 well as the node itself. Link them up properly.
100 (duplicate_eh_region_2): Merge into ...
101 (duplicate_eh_regions): ... here. Take copy_region argument, and
102 copy only a sub-tree if asked. Simplify copying and fixup.
103 (eh_region_outer_p): New.
104 * except.h (duplicate_eh_regions): Update decl.
105 (eh_region_outer_p): Declare.
106 * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
107 (lower_omp_master): Likewise.
108 (lower_omp_ordered): Likewise.
109 * tree-cfg.c (struct move_stmt_d): Add new_label_map.
110 (move_stmt_r): Use it to remap labels. Handle recursion vs
111 remap_decls_p properly.
112 (move_block_to_fn): Pass in new_label_map. Remap RESX_EXPR.
113 (find_outermost_region_in_block): New.
114 (new_label_mapper): New.
115 (move_sese_region_to_fn): Copy eh information to the new function
116 properly.
117 * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
118 argument.
119 * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
120 number.
121
1222006-03-22 Richard Sandiford <richard@codesourcery.com>
123
124 * doc/md.texi (-mshared): Mention that -mshared code can be linked
125 into shared libraries.
126
1272006-03-22 Richard Sandiford <richard@codesourcery.com>
128
129 * doc/md.texi: Refer to i386/constraints.md instead of
130 i386/predicates.md.
131 * config/i386/constraints.md: New file, extracted from...
132 * config/i386/predicates.md: ...here.
133 * config/i386/i386.md: Include constraints.md.
134
1352006-03-21 Jason Merrill <jason@redhat.com>
136
137 * builtins.c (expand_builtin_fork_or_exec): Fix pasto.
138
139 PR middle-end/20297
140 * expr.c (init_block_move_fn): Force default visibility.
141 (init_block_clear_fn): Likewise.
142 * builtins.c (expand_builtin_fork_or_exec): Likewise.
143 * targhooks.c (default_external_stack_protect_fail): Likewise.
144
1452006-03-21 Richard Sandiford <richard@codesourcery.com>
146
147 * config/mips/predicates.md (const_call_insn_operand): Allow direct
148 calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
149 * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
150 Use TARGET_OLDABI instead of !TARGET_NEWABI.
151 (loadgp): Use mips_current_loadgp_style.
152 (loadgp_noshared): New pattern.
153 (sibcall_internal): Use MIPS_CALL.
154 (sibcall_value_internal): Likewise.
155 (sibcall_value_multiple_internal): Likewise.
156 (call_internal): Likewise.
157 (call_value_internal): Likewise.
158 (call_value_multiple_internal): Likewise.
159 (call_split): Use MIPS_CALL and add an 'S' constraint.
160 (call_value_split): Likewise.
161 (call_value_multiple_split): Likewise.
162 * config/mips/mips.opt (-mabicalls): Tweak docstring.
163 (-mshared): New option.
164 * config/mips/mips-protos.h (mips_loadgp_style): New enum.
165 (mips_current_loadgp_style): Declare.
166 * config/mips/mips.c (mips_classify_symbol): Avoid using
167 SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS. Use SYMBOL_GENERAL
168 rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
169 TARGET_ABSOLUTE_ABICALLS.
170 (override_options): Adjust comments. Improve the warning that is
171 issued when -mabicalls and -G are used together.
172 (mips_file_start): Remove comment.
173 (mips_current_loadgp_style): New function.
174 (mips_gnu_local_gp): New variable.
175 (mips_emit_loadgp): Use mips_current_loadgp_style. Handle
176 LOADGP_ABSOLUTE.
177 (mips_output_function_prologue): Use mips_current_laodgp_style.
178 (mips_expand_prologue): Call mips_emit_loadgp before emitting
179 the cprestore instruction.
180 (mips_extra_live_on_entry): Fix reversed test. Don't make $25
181 live for TARGET_ABSOLUTE_ABICALLS.
182 * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
183 (ASM_SPEC): Pass down -mshared and -mno-shared.
184 (MIPS_CALL): New macro.
185 * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
186 definition.
187 * doc/invoke.texi (-mabicalls): Update documentation.
188 (-mshared): Document.
189
1902006-03-21 Steve Ellcey <sje@cup.hp.com>
191
192 * config/ia64/unwind-hpux.c: New file.
193 * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.
194
1952006-03-21 Steve Ellcey <sje@cup.hp.com>
196
197 PR libgomp/26384
198 * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.
199
2002006-03-21 Jeff Law <law@redhat.com>
201
202 * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
203 type conversions of a VR_VARYING source to a wider type.
204
2052006-03-21 Eric Botcazou <ebotcazou@libertysurf.fr>
206
207 * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
208 tm_file on Solaris 10 and later.
209 (sparc64-*-solaris2*): Likewise.
210 (sparc-*-solaris2*): Likewise.
211 * config/sol26.h: Rename to config/sol2-6.h.
212 * config/sol2-10.h: New file.
213
2142006-03-21 Andrew Pinski <pinskia@physics.uc.edu>
215
216 PR tree-opt/26781
217 * tree-ssa-pre.c (create_component_ref_by_pieces):
218 Handle STRING_CST.
219
2202006-03-21 Jakub Jelinek <jakub@redhat.com>
221
222 PR c++/26690
223 * tree.c (get_callee_fndecl): If CALL is error_mark_node,
224 return it immediately.
225
2262006-03-21 Michael Matz <matz@suse.de>
227
228 * genautomata.c (<struct state>, num_out_arcs, presence_signature):
229 New members.
230 (remove_arc, add_arc): Update num_out_arcs member.
231 (set_out_arc_insns_equiv_num): Returns nothing instead of number
232 of out arcs.
233 (cache_presence): New function.
234 (compare_states_for_equiv): New function.
235 (state_is_differed): Don't take number of outargs, adjust callers.
236 Use new invariant for speeding up.
237 (init_equiv_class): Create initial classes based on sorted
238 input.
239 (partition_equiv_class): Don't track out_arcs_num.
240 (evaluate_equiv_classes): Call cache_presence on all states and
241 sort them.
242
2432006-03-21 Bernd Schmidt <bernd.schmidt@analog.com>
244
245 * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
246 * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
247 (bfin_valid_reg_p): Test for pseudos explicitly and use only
248 REGNO_MODE_CODE_OK_FOR_BASE_P. New args MODE and OUTER_CODE; all
249 callers changed.
250 * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
251 (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
252 (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
253 (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
254 REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
255 macros.
256 (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
257 REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
258 (REGNO_REG_CLASS): ARGP is in PREGS.
259 * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
260 IREGS.
261 (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
262 to deal with those addresses.
263 * addresses.h: New file.
264 * caller-save.c: Include "addresses.h".
265 (init_caller_save): Use new base_reg_class function.
266 * rtl-factoring.c: Include "addresses.h".
267 (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
268 * recog.c: Include "addresses.h".
269 (preprocess_constraints): Use new base_reg_class function.
270 * regrename.c: Include "addresses.h".
271 (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
272 functions. Keep track of a new var INDEX_CODE to compute valid
273 classes.
274 (replace_oldest_value_addr): Likewise.
275 (replace_oldest_value_mem): Use base_reg_class.
276 * reload.c: Include "addresses.h".
277 (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
278 (find_reloads): Use new base_reg_class function.
279 (find_reloads_address): Likewise; also use regno_ok_for_base_p.
280 (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
281 all callers and prototype changed.
282 * reload1.c: Include "addresses.h".
283 (maybe_fix_stack_asms): Use base_reg_class.
284 * regclass.c: Include "addresses.h".
285 (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
286 (init_reg_autoinc): Use new base_reg_class function.
287 (record_reg_classes): Likewise.
288 (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
289 OUTER_CODE and INDEX_CODE. All callers and prototype changed.
290 Use new args to compute necessary class.
291
292 * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
293 regrename.o, rtl-factoring.o): Update dependencies.
294 * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
295 (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
296 (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
297 REG_OK_FOR_INDEX_P): Delete documentation.
298
2992006-03-21 Alexey Starovoytov <alexey.starovoytov@sun.com>
300
301 * config.gcc (sparc-*-solaris2*): Change the default CPU setting
302 from V7 to V9 for Solaris 7 and above.
303
3042006-03-21 Toon Moene <toon@moene.indiv.nluug.nl>
305
306 * doc/invoke.texi: Document new flag -fargument-noalias-anything.
307 * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
308 argument pointers may not alias any other storage.
309 * common.opt: Define option -fargument-noalias-anything.
310 * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
311 alias semantics is specified by flag_argument_noalias > 2.
312
3132006-03-20 Jeff Law <law@redhat.com>
314
315 * tree-pass.h (pass_phi_only_copy_prop): Delete.
316 (pass_phi_only_cprop): Declare.
317 * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
318 with phi_only_cprop
319 * tree-ssa-dom.c (degenerate_phi_result): New function.
320 (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
321 (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
322 (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
323 (eliminate_degenerate_phis): Likewise.
324 (pass_phi_only_cprop): New pass descriptor.
325 * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
326 support code. Callers updated.
327 (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
328 (store_copy_prop): Likewise.
329 (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.
330
3312006-03-20 Jason Merrill <jason@redhat.com>
332
333 PR c++/21764
334 * c-pragma.c (visstack): Move out of handle_pragma_visibility.
335 (push_visibility, pop_visibility): Likewise.
336 * c-pragma.h: Declare them.
337
3382006-03-20 Kaz Kojima <kkojima@gcc.gnu.org>
339
340 * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.
341
342 * config/sh/sh.c (find_regmode_weight): Change the type of the first
343 parameter and use get_ebb_head_tail.
344 (sh_md_init_global): Adjust uses of find_regmode_weight.
345
3462006-03-20 Steven Bosscher <stevenb.gcc@gmail.com>
347
348 * function.h (struct function) <x_tail_recursion_reentry>:
349 Rename to x_stack_check_probe_note.
350 (tail_recursion_reentry): Rename to stack_check_probe_note.
351 * function.c: Replace tail_recursion_reentry with
352 stack_check_probe_note everywhere.
353 (expand_function_start): Only emit a note for
354 stack_check_probe_note with -fstack-protect.
355 * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.
356
357 * emit-rtl.c (remove_unnecessary_notes): Remove.
358 (pass_remove_unnecessary_notes): Remove.
359 * rtl.h (remove_unnecessary_notes): Remove prototype.
360 * final.c (final_start_function): Don't call remove_unnecessary_notes.
361 * tree-pass.h (pass_remove_unnecessary_notes): Remove.
362 * passes.c (pass_remove_unnecessary_notes): Don't run it.
363
3642006-03-20 Andrew Pinski <pinskia@physics.uc.edu>
365
366 PR tree-opt/26629
367 * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
368 (valid_in_set): Handle ARRAY_REF.
369 Change "if min_variant or VH" to asserts.
370 (create_component_ref_by_pieces): Handle ARRAY_REF.
371 (create_expression_by_pieces): Likewise.
372 (can_PRE_operation): ARRAY_REFs can now be PRE'd.
373
3742006-03-20 David Edelsohn <edelsohn@gnu.org>
375
376 * genpreds.c (write_insn_extra_address_constraint): Argument `c'
377 is operand of switch, not str[0].
378
3792006-03-20 Alan Modra <amodra@bigpond.net.au>
380
381 * config/rs6000/rs6000.c (rs6000_handle_option): Use
382 TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.
383
3842006-03-19 David Edelsohn <edelsohn@gnu.org>
385
386 * genpreds.c (write_tm_preds_h): Add semicolon and newline at
387 end of insn_extra_address_constraint declaration.
388
3892006-03-19 David Edelsohn <edelsohn@gnu.org>
390
391 * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
392 (no-sum-in-toc): Same.
393 * config/rs6000/rs6000.c (rs6000_handle_option): Use new
394 variables.
395 * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
396 NO_FP_IN_TOC for -fPIC instead of mask.
397
398 * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
399 (BOOT_LDFLAGS): Delete.
400 (LDFLAGS): Delete.
401 * config/rs6000/t-aix52: Same.
402
403 * config/rs6000/rs6000.md (store_multiple_power): Delete.
404 (stmsi[345678]_power): New.
405
4062006-03-17 Steve Ellcey <sje@cup.hp.com>
407
408 * config/ia64/ia64.opt: Add empty line to end of file.
409
4102006-03-17 Richard Guenther <rguenther@suse.de>
411
412 PR middle-end/26721
413 * builtins.c (get_pointer_alignment): For component style references
414 adjust alignment to the component type alignment. Make sure
415 to adjust alignment for component access of constants.
416
4172006-03-17 David Edelsohn <edelsohn@gnu.org>
418
419 * config/rs6000/rs6000.md (strlensi): Emit barrier after
420 unconditional jump.
421
4222006-03-17 Paul Brook <paul@codesourcery.com>
423
424 * doc/install.texi: Docuemnt --with-mode.
425 * config.gcc: Add --with-mode for arm*-*-*.
426 * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".
427
4282006-03-17 J"orn Rennecke <joern.rennecke@st.com>
429
430 * sh.c (max_labelno_before_reorg): New variable.
431 (sh_reorg): Initialize it.
432 (find_barrier): Check max_labelno_before_reorg before using
433 label_to_alignment. Take length of explicit alignment insns
434 into account. When seeing a UNSPECV_CONST_END, return it.
435
436 * sh.c (fixup_mova): Set mode of affected label to QImode.
437 (untangle_mova): New function.
438 (find_barrier): Use it. Check mode of label before decrementing
439 num_mova.
440 (sh_reorg): Likewise.
441 Set mode of all insns back to VOIDmode.
442
443 * sh.c (MOVA_LABELREF): New macro.
444 (mova_p, fixup_mova, sh_reorg): Use it.
445 (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
446 ADDR_DIFF_VEC matches mova.
447
4482006-03-17 Steven Bosscher <stevenb.gcc@gmail.com>
449
450 * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
451 with ATTRIBUTE_UNUSED.
452
4532006-03-17 Alexandre Oliva <aoliva@redhat.com>
454
455 * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
456 pointer, instead of assuming it is possible to derive the
457 correct args size from a call insn.
458
4592006-03-16 Jan-Benedict Glaw <jbglaw@lug-owl.de>
460
461 * rtl.h (CONST_INT_P): Define.
462 * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
463 instead of GET_CODE(x) == CONST_INT.
464 (vax_rtx_costs): Likewise.
465 (vax_output_int_move): Likewise.
466 (vax_output_int_add): Likewise.
467 (legitimate_constant_address_p): Likewise.
468 (index_term_p): Likewise.
469 * config/vax/vax.h (PRINT_OPERAND): Likewise.
470 * config/vax/vax.md (and<mode>3): Likewise.
471 (ashrsi3): Likewise.
472 (extv): Likewise.
473 (movstricthi): Likewise.
474 (movstrictqi): Likewise.
475 (rotrsi3): Likewise.
476 (five unnamed insns): Likewise.
477
4782006-03-16 Geoffrey Keating <geoffk@apple.com>
479
480 * doc/tm.texi (SDB and DWARF): Add extra parameter to
481 ASM_OUTPUT_DWARF_OFFSET. Use @var to indicate metavariables.
482 * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
483 * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
484 Pass to ASM_OUTPUT_DWARF_OFFSET.
485 * dwarf2out.c (debug_frame_section): New.
486 (output_call_frame_info): Use debug_frame_section. Pass it to
487 dw2_asm_output_offset.
488 (output_die): Pass appropriate section to dw2_asm_output_offset.
489 (output_compilation_unit_header): Likewise.
490 (output_pubnames): Likewise.
491 (output_aranges): Likewise.
492 (enum dw_val_class): Break dw_val_class_lbl_offset into
493 dw_val_class_lineptr and dw_val_class_macptr.
494 (add_AT_lbl_offset): Delete.
495 (add_AT_lineptr): New.
496 (add_AT_macptr): New.
497 (AT_lbl): Expect a lineptr or macptr.
498 (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
499 (attr_checksum): Likewise.
500 (same_dw_val_p): Likewise.
501 (size_of_die): Likewise.
502 (value_format): Likewise.
503 (output_die): Likewise.
504 (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
505 add_AT_lbl_offset.
506 * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
507 * config/i386/i386.c (x86_file_start): Call darwin_file_start.
508 * config/darwin-protos.h (darwin_file_start): New.
509 (darwin_asm_output_dwarf_offset): New.
510 * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
511 * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
512 darwin_file_start.
513 * config/darwin.c (darwin_emit_unwind_label): Don't output label
514 if not EH section; simplify.
515 (darwin_file_start): New.
516 (darwin_asm_output_dwarf_offset): New.
517 * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
518 mark as 'debug'.
519 (DEBUG_INFO_SECTION): Likewise.
520 (DEBUG_ABBREV_SECTION): Likewise.
521 (DEBUG_ARANGES_SECTION): Likewise.
522 (DEBUG_MACINFO_SECTION): Likewise.
523 (DEBUG_LINE_SECTION): Likewise.
524 (DEBUG_LOC_SECTION): Likewise.
525 (DEBUG_PUBNAMES_SECTION): Likewise.
526 (DEBUG_STR_SECTION): Likewise.
527 (DEBUG_RANGES_SECTION): Likewise.
528 (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
529 (ASM_OUTPUT_DWARF_OFFSET): New.
530
5312006-03-16 Joseph S. Myers <joseph@codesourcery.com>
532
533 * config.gcc (tm_defines): Always add to previous value rather
534 than replacing it.
535
5362006-03-16 Richard Sandiford <richard@codesourcery.com>
537
538 * config/mips/predicates.md (splittable_const_int_operand): New,
539 split from move_operand.
540 (splittable_symbolic_operand): New.
541 (move_operand): Add commentary. Use splittable_const_int_operand.
542 Inline mips_atomic_symbolic_constant_p.
543 * config/mips/mips.md: Add combine splitters for handling moves
544 of splittable_const_int_operands and splittable_symbolic_operands.
545 * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
546 (mips_split_symbol): Declare.
547 (mips_move_integer): Declare.
548 * config/mips/mips.c (mips_split_p): Make global.
549 (TARGET_MIN_ANCHOR_OFFSET): Override default.
550 (TARGET_MAX_ANCHOR_OFFSET): Likewise.
551 (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
552 (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
553 (mips_offset_within_object_p): Handle block symbols.
554 (mips_atomic_symbolic_constant_p): Delete.
555 (mips_cannot_force_const_mem): Return false for constants that
556 mips_legitimize_move can handle.
557 (mips_use_blocks_for_constant_p): New function.
558 (mips_split_symbol): Make global.
559 (mips_move_integer): Likewise. Add a temporary register argument.
560 (mips_legitimize_const_move): Use splittable_const_int_operand and
561 splittable_symbolic_operand.
562 (mips_use_anchors_for_symbol_p): New function.
563 * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
564 (mips_split_p): Declare.
565
5662006-03-16 Richard Sandiford <richard@codesourcery.com>
567
568 * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
569 (mips*-*-linux*): Likewise.
570
5712006-03-16 Roger Sayle <roger@eyesopen.com>
572 Daniel Speyer <dspeyer@wam.umd.edu>
573
574 PR middle-end/18259
575 * tree-dump.c (dump_real): New function.
576 (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
577 * Makefile.in (REAL_H): New macro for dependencies on real.h.
578 (tree-dump.o): Add $(REAL_H) to the dependencies.
579
5802006-03-16 Roger Sayle <roger@eyesopen.com>
581
582 PR middle-end/21781
583 * real.c (real_from_string): If the mantissa is zero, don't bother
584 parsing the exponent as the result should always be zero.
585
5862006-03-16 Andreas Krebbel <krebbel1@de.ibm.com>
587
588 * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.
589
5902006-03-16 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
591
592 * config/ia64/ia64.c (stops_p): Added explicit initialization.
593 (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
594 ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
595 ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
596 ia64_sched_finish_global): New static functions to implement
597 hooks from gcc_target.sched.
598 (spec_check_no, max_uid, pending_data_specs): New static variables.
599 (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
600 ia64_spec_check_src_p): New static functions.
601 (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
602 (TARGET_SCHED_ADJUST_COST): Removed.
603 (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
604 TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
605 TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
606 TARGET_SCHED_GEN_CHECK,
607 TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
608 TARGET_SCHED_SET_SCHED_FLAGS): New macros.
609 (update_set_flags, group_barrier_needed, set_src_needs_barrier):
610 Fixed to handle speculation checks.
611 (rtx_needs_barrier): Fixed to handle speculative loads and
612 their checks.
613 (ia64_variable_issue): Added code to count speculative loads and their
614 checks.
615 (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
616 speculative loads.
617 (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
618 New enumerations.
619 (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
620 New constants.
621 (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
622 (ia64_reorg): Reset stops_p to NULL after it is freed.
623 * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
624 UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
625 (itanium_class): chk_s renamed to chk_s_i. New constants: chk_s_f,
626 chk_a.
627 (data_speculative, control_speculative, check_load): New attributes.
628 (mov<mode>_advanced, mov<mode>_speculative,
629 mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
630 zero_extend<mode>di2_speculative,
631 zero_extend<mode>di2_speculative_advanced): New patterns for
632 data and control speculative loads.
633 (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
634 check loads.
635 (advanced_load_check_clr_<mode>, speculation_check_<mode>):
636 New pattern for data and control speculation checks.
637 (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
638 ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
639 reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
640 Auxiliary definitions for the patterns.
641 * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
642 1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
643 constraints.
644 (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
645 for speculation.
646 (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
647 * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
648 2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
649 New resource constraints.
650 (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
651 for speculation.
652 (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
653 * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
654 msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
655 msched-in-control-spec, msched-ldc, msched-control-ldc,
656 msched-spec-verbose, msched-prefer-non-data-spec-insns,
657 msched-prefer-non-control-spec-insns,
658 msched-count-spec-in-critical-path): New flags to tune speculative
659 scheduling.
660 * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
661 msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
662 msched-in-control-spec, msched-ldc, msched-control-ldc,
663 msched-spec-verbose, msched-prefer-non-data-spec-insns,
664 msched-prefer-non-control-spec-insns,
665 msched-count-spec-in-critical-path): Document new flags.
666
6672006-03-16 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
668
669 * target.h (struct spec_info_def): New opaque declaration.
670 (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
671 speculate_insn, needs_block_p, gen_check,
672 first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
673 * target-def.h (TARGET_SCHED_ADJUST_COST_2,
674 TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
675 TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
676 TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
677 TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
678 gcc_target.sched.
679 (TARGET_SCHED): Use new macros.
680 * rtl.h (copy_DEPS_LIST_list): New prototype.
681 * sched-int.h (struct sched_info): Change signature of new_ready field,
682 adjust all initializations. New fields: add_remove_insn,
683 begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
684 region_head_or_leaf_p.
685 (struct spec_info_def): New structure declaration.
686 (spec_info_t): New typedef.
687 (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
688 recovery_block, orig_pat.
689 (glat_start, glat_end): New variables declaraions.
690 (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
691 New access macros.
692 (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
693 DETACH_LIFE_INFO, USE_GLAT.
694 (enum SPEC_SCHED_FLAGS): New enumeration.
695 (NOTE_NOTE_BB_P): New macro.
696 (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
697 attach_life_info, debug_spec_status, check_reg_live): New functions.
698 (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
699 all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
700 sched-ebb.c
701 (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
702 * ddg.c (get_block_head_tail): Adjust all uses.
703 * modulo-sched.c (get_block_head_tail): Adjust all uses.
704 (sms_sched_info): Initialize new fields.
705 (contributes_to_priority): Removed.
706 * haifa-sched.c (params.h): New include.
707 (get_block_head_tail): Adjust all uses.
708 (ISSUE_POINTS): New macro.
709 (glat_start, glat_end): New global variables.
710 (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
711 nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
712 old_last_basic_block, before_recovery, current_sched_info_var,
713 rgn_n_insns, luid): New static variables.
714 (insn_cost1): New function. Move logic from insn_cost to here.
715 (find_insn_reg_weight1): New function. Move logic from
716 find_insn_reg_weight to here.
717 (reemit_notes, move_insn, max_issue): Change signature.
718 (move_insn1): Removed.
719 (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
720 extend_bb): New static functions to support extension of scheduler's
721 data structures.
722 (generate_recovery_code, process_insn_depend_be_in_spec,
723 begin_speculative_block, add_to_speculative_block,
724 init_before_recovery, create_recovery_block, create_check_block_twin,
725 fix_recovery_deps): New static functions to support
726 generation of recovery code.
727 (fix_jump_move, find_fallthru_edge, dump_new_block_header,
728 restore_bb_notes, move_block_after_check, move_succs): New static
729 functions to support ebb scheduling.
730 (init_glat, init_glat1, attach_life_info1, free_glat): New static
731 functions to support handling of register live information.
732 (associate_line_notes_with_blocks, change_pattern, speculate_insn,
733 sched_remove_insn, clear_priorities, calc_priorities, bb_note,
734 add_jump_dependencies): New static functions.
735 (check_cfg, has_edge_p, check_sched_flags): New static functions for
736 consistancy checking.
737 (debug_spec_status): New function to call from debugger.
738 (priority): Added code to handle speculation checks.
739 (rank_for_schedule): Added code to distinguish speculative instructions.
740 (schedule_insn): Added code to handle speculation checks.
741 (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
742 Fixed to handle ebbs.
743 (move_insn): Added code to handle ebb scheduling.
744 (max_issue): Added code to use ISSUE_POINTS of instructions.
745 (choose_ready): Added code to choose between speculative and
746 non-speculative instructions.
747 (schedule_block): Added code to handle ebb scheduling and scheduling of
748 speculative instructions.
749 (sched_init): Initialize new variables.
750 (sched_finish): Free new variables. Print statistics.
751 (try_ready): Added code to handle speculative instructions.
752 * lists.c (copy_DEPS_LIST_list): New function.
753 * sched-deps.c (extend_dependency_caches): New function. Move logic
754 from create_dependency_caches to here.
755 (get_dep_weak, ds_merge): Make global.
756 * genattr.c (main): Code to output prototype for
757 dfa_clear_single_insn_cache.
758 * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
759 (output_dfa_clean_insn_cache_func): Code to output
760 dfa_clear_single_insn_cache function.
761 * sched-ebb.c (target_n_insns): Remove. Adjust all users to use
762 n_insns.
763 (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
764 Removed.
765 (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
766 New static variables.
767 (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
768 fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
769 struct sched_info.
770 (ebb_sched_info): Initialize new fields.
771 (get_block_head_tail): Adjust all uses.
772 (compute_jump_reg_dependencies): Fixed to use glat_start.
773 (schedule_ebb): Code to remove unreachable last block.
774 (schedule_ebbs): Added code to update register live information.
775 * sched-rgn.c (region_sched_info): Initialize new fields.
776 (get_block_head_tail): Adjust all uses.
777 (last_was_jump): Removed. Adjust users.
778 (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
779 add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
780 Implement new hooks.
781 (check_dead_notes1): New static function.
782 (struct region): New fields: dont_calc_deps, has_real_ebb.
783 (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
784 (BB_TO_BLOCK): Fixed to handle EBBs.
785 (EBB_FIRST_BB, EBB_LAST_BB): New macros.
786 (ebb_head): New static variable.
787 (debug_regions, contributes_to_priority): Fixed to handle EBBs.
788 (find_single_block_regions, find_rgns, find_more_rgns): Initialize
789 new fields.
790 (compute_dom_prob_ps): New assertion.
791 (check_live_1, update_live_1): Fixed to work with glat_start instead of
792 global_live_at_start.
793 (init_ready_list): New assertions.
794 (can_schedule_ready_p): Split update code to begin_schedule_ready.
795 (new_ready): Add support for BEGIN_CONTROL speculation.
796 (schedule_insns): Fixed code that updates register live information
797 to handle EBBs.
798 (schedule_region): Fixed to handle EBBs.
799 (init_regions): Use extend_regions and check_dead_notes1.
800 * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
801 PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
802 * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
803 TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
804 TARGET_SCHED_GEN_CHECK,
805 TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
806 TARGET_SCHED_SET_SCHED_FLAGS): Document.
807 * doc/invoke.texi (max-sched-insn-conflict-delay,
808 sched-spec-prob-cutoff): Document.
809
8102006-03-16 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
811
812 * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
813 inter_tick, queue_index.
814 (struct sched_info): Change signature of init_ready_list field.
815 Adjust all initializations.
816 (RESOLVED_DEPS): New access macro.
817 (ready_add): Remove prototype.
818 (try_ready): Add prototype.
819 * sched-rgn.c (init_ready_list): Use try_ready.
820 (schedule_region): Initialize
821 current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
822 * sched-ebb.c (new_ready): Remove. Adjust ebb_sched_info.
823 (init_ready_list): Use try_ready.
824 (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
825 * lists.c (remove_list_elem): Remove `static'.
826 (remove_free_INSN_LIST_elem): New function.
827 * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
828 * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
829 (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
830 New constants.
831 (readyp): New variable.
832 (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
833 change_queue_index, resolve_dep): New static functions.
834 (try_ready): New function. Adjust callers in sched-rgn.c and
835 sched-ebb.c to use it instead of ready_add.
836 (clock_var): Move at the begining of file.
837 (rank_for_schedule): Fix typo.
838 (queue_insn): Add assertion. Handle QUEUE_INDEX.
839 (ready_lastpos): Enforce assertion.
840 (ready_add): Make it static. Handle QUEUE_INDEX. Add new argument,
841 update all callers.
842 (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
843 (schedule_insn): Rewrite to use try_ready and resolve_dep.
844 (queue_to_ready): Use free_INSN_LIST_list.
845 (early_queue_to_ready): Fix typo.
846 (schedule_block): Init readyp. Move init_ready_list call after the
847 initialization of clock_var. Fix error in rejecting insn by
848 targetm.sched.dfa_new_cycle. Add call to fix_inter_tick. Remove code
849 that previously corrected INSN_TICKs. Add code for handling
850 QUEUE_INDEX.
851 (set_priorities): Fix typo.
852 (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
853 Clarify comment and code that keeps current_sched_info->next_tail
854 non-null.
855
8562006-03-16 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
857
858 * sched-rgn.c (extend_rgns): New static function.
859 (find_rgns): Use it.
860 (gather_region_statistics, print_region_statistics): New static
861 functions.
862 * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
863 * doc/invoke.texi (max-sched-extend-regions-iters): Document.
864
8652006-03-16 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
866 Andrey Belevantsev <abel@ispras.ru>
867
868 * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
869 * lists.c (unused_deps_list): New variable.
870 (free_list): Add assertions to verify the proper distinguishing
871 between INSN_LISTs and DEPS_LISTs.
872 (find_list_elem, remove_list_elem, remove_list_node): New static
873 functions.
874 (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
875 remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
876 remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
877 (alloc_INSN_LIST): Assert that the list we're working on is indeed
878 an INSN_LIST.
879 (free_INSN_LIST_node): Likewise.
880 * modulo-sched.c (current_sched_info): Initialize flags field.
881 * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
882 * rtl.def (DEPS_LIST): Define.
883 * rtl.h: Declare new functions from lists.c.
884 * sched-deps.c (spec_dependency_cache): New static variable.
885 (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
886 (add_dependence): Change return type to void. Move the logic to ...
887 (add_or_update_back_dep_1): ... here. Handle speculative dependencies.
888 (delete_all_dependences): Add comment about forward_dependency_cache.
889 Handle spec_dependency_cache. Handle DEPS_LISTs.
890 (fixup_sched_groups): Clarify the change of priority of output
891 and anti dependencies.
892 (sched_analyze_2): Adjust add_dependence calls to create data
893 speculative dependence.
894 (add_forward_dependence): Renamed to add_forw_dep, change prototype.
895 Adjust all callers. Handle DEPS_LISTS.
896 (compute_forward_dependences): Use add_forw_dep. Sort LOG_LINKs in
897 presence of speculation.
898 (init_dependency_caches, free_dependency_caches):
899 Handle spec_dependency_cache.
900 (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
901 estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
902 New static functions.
903 (add_or_update_back_dep, add_or_update_back_forw_dep,
904 add_back_forw_dep, delete_back_forw_dep): New functions.
905 * sched-int.h (ds_t, dw_t): New typedefs.
906 (struct sched_info): Add new field flags.
907 (struct haifa_insn_data): Add new bitfield has_internal_dep.
908 Prototype new sched-deps.c functions.
909 (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
910 (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
911 MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
912 BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
913 SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
914 SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
915 New constants.
916 (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
917 New enums.
918 * sched-rgn.c (current_sched_info): Initialize flags field.
919 (schedule_insns): Initialize current_sched_info before the sched_init
920 call.
921 * sched-ebb.c (current_sched_info): Initialize flags field.
922 (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
923 Call add_or_update_back_dep instead of add_dependence.
924 Create control speculative dependencies.
925 (schedule_insns): Initialize current_sched_info before the sched_init
926 call.
927
9282006-03-16 Kaz Kojima <kkojima@gcc.gnu.org>
929
930 * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
931 fs->signal_frame.
932 (sh_fallback_frame_state): Likewise.
933
9342006-03-15 Geoffrey Keating <geoffk@apple.com>
935
936 * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
937 Do switch on default_use_cxa_atexit.
938 (powerpc*-*-darwin*): Build crt2.o on powerpc.
939 * config/darwin-crt3.o: New.
940 * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
941 to 10.3. Pass '-multiply_defined suppress' if crt3.o is in use.
942 (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
943 OS version.
944 * config/rs6000/t-darwin: Move crt2.o building to here.
945 * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
946 Mac OS version for using __cxa_get_exception_ptr. Don't test versions
947 of __cxa_atexit.
948
9492006-03-15 Jan-Benedict Glaw <jbglaw@lug-owl.de>
950
951 * config/vax/vax.c (nonindexed_address_p): Change logical negation
952 from '! xxx' to '!xxx' for coding-style conformance.
953 * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
954 (EXTRA_CONSTRAINT): Likewise.
955 * config/vax/vax.md (four unnamed insns): Likewise.
956
9572006-03-15 Paul Brook <paul@codesourcery.com>
958
959 * config/arm/arm.c (minipool_pad): New.
960 (add_minipool_forward_ref): Include pool alignment padding in address
961 calculation.
962 (push_minipool_fix): Set minipool_pad.
963 (minipool_pad): Ditto.
964
9652006-03-15 Jan-Benedict Glaw <jbglaw@lug-owl.de>
966
967 * config/vax/vax.c (split_quadword_operands): Use MEM_P()
968 instead of GET_CODE() == MEM and REG_P() instead of
969 GET_CODE() == REG.
970 (print_operand_address): Likewise.
971 (vax_address_cost): Likewise.
972 (vax_rtx_costs): Likewise.
973 (vax_notice_update_cc): Likewise.
974 (vax_output_int_add): Likewise.
975 (INDEX_REGISTER_P): Likewise.
976 (BASE_REGISTER_P): Likewise.
977 (nonindexed_address_p): Likewise.
978 (vax_mode_dependent_address_p): Likewise.
979 * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
980 (PRINT_OPERAND): Likewise.
981 * config/vax/vax.md (ashlsi3): Likewise.
982 (ashlsi3): Likewise.
983 (some more unnamed insns): Likewise.
984
9852006-03-15 Kazu Hirata <kazu@codesourcery.com>
986
987 * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
988 iterator-style macro.
989 (mark_control_dependent_edges_necessary): Update the use of
990 EXECUTE_IF_CONTROL_DEPENDENT.
991
9922006-03-15 J"orn Rennecke <joern.rennecke@st.com>
993
994 * config/sh/predicates.md (cache_address_operand): Special.
995 (ua_address_operand): Likewise.
996
9972006-03-15 Zdenek Dvorak <dvorakz@suse.cz>
998
999 * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
1000 loop notes.
1001 * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
1002
10032006-03-15 Andreas Schwab <schwab@suse.de>
1004
1005 * gensupport.c (identify_predicable_attribute): Don't free p_false
1006 when it is still in use.
1007
10082006-03-15 Eric Botcazou <ebotcazou@libertysurf.fr>
1009
1010 * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
1011 the default setting here.
1012
10132006-03-14 Steven Bosscher <stevenb.gcc@gmail.com>
1014
1015 * tree-pass.h (pass_cfg): Remove.
1016 * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
1017 * passes.c (pass_cfg): Don't run it.
1018
10192006-03-14 Kazu Hirata <kazu@codesourcery.com>
1020
1021 * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
1022 * reg-stack.c (stack_regs_mentioned_data): Change the type to
1023 VEC(char,heap) *.
1024 (stack_regs_mentioned): Update the uses of
1025 stack_regs_mentioned_data. Don't access the array beyond its
1026 end.
1027 (reg_to_stack): Update the uses of stack_regs_mentioned_data.
1028 Don't include gt-reg-stack.h.
1029
1030 * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
1031 * system.h (UNALIGNED_WORD_ASM_OP): Poison.
1032
1033 * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
1034
1035 PR middle-end/26684
1036 * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
1037 STACK_REGS.
1038
10392006-03-14 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
1040
1041 * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
1042
10432006-03-14 Richard Guenther <rguenther@suse.de>
1044
1045 PR tree-optimization/26672
1046 * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
1047 SSA form.
1048
10492006-03-14 Richard Guenther <rguenther@suse.de>
1050
1051 PR tree-optimization/26667
1052 * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
1053 node for the callees. Always allow inlining if it will shrink
1054 the function size.
1055
10562006-03-14 Richard Guenther <rguenther@suse.de>
1057
1058 PR middle-end/26659
1059 * builtins.c (get_pointer_alignment): Prefer alignment
1060 information from decls over that from types.
1061
10622006-03-14 Andrew Pinski <pinskia@physics.uc.edu>
1063
1064 PR target/26657
1065 * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
1066
10672006-03-14 Joseph S. Myers <joseph@codesourcery.com>
1068
1069 * config/rs6000/rs6000.opt (mdlmzb): New option.
1070 (msched-prolog, msched-epilog): Use Var not Mask.
1071 * doc/invoke.texi (-mdlmzb): Document.
1072 * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
1073 MASK_SCHED_PROLOG.
1074 (rs6000_override_options): Enable -mdlmzb for 405 and 440.
1075 * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
1076
10772006-03-13 Uttam Pawar <uttamp@us.ibm.com>
1078
1079 PR rtl-optimization/25739
1080 * bt-load.c (augment_live_range): Free tos pointer.
1081
1082 * gensupport.c (identify_predicable_attribute): Free
1083 p_false pointer.
1084 * gcov.c (create_file_names): Free name pointer.
1085
10862006-03-13 Roger Sayle <roger@eyesopen.com>
1087
1088 PR middle-end/26557
1089 * stmt.c (emit_case_nodes): Handle the case where the index is a
1090 CONST_INT, where the comparison mode is specified by the index type.
1091
10922006-03-13 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
1093
1094 * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
1095 is defined.
1096
10972006-03-13 Richard Sandiford <richard@codesourcery.com>
1098
1099 * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
1100 (*branch_fp_inverted): Likewise.
1101
11022006-03-13 Jakub Jelinek <jakub@redhat.com>
1103
1104 PR middle-end/25989
1105 * omp-low.c (expand_omp_for_generic): Mark istart0
1106 and iend0 as addressable.
1107
11082006-03-13 Jie Zhang <jie.zhang@analog.com>
1109
1110 * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
1111
11122006-03-13 Jeff Law <law@redhat.com>
1113
1114 * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
1115 virtual operands are interesting.
1116 (vrp_visit_stmt): Corresponding changes.
1117
11182006-03-13 Bernd Schmidt <bernd.schmidt@analog.com>
1119
1120 * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
1121 of RETS.
1122 * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
1123 TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
1124 * config/bfin/crti.S: Use it instead of __PIC__.
1125 * config/bfin/crtn.S: Likewise.
1126
1127 * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
1128 call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
1129 not if flag_pic.
1130 Lose 'G' modifier for call operand.
1131 * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
1132 recognize 'G' modifier.
1133
11342006-03-13 Eric Botcazou <ebotcazou@adacore.com>
1135
1136 PR middle-end/18859
1137 * gimplify.c (gimplify_switch_expr): Discard empty ranges.
1138 * stmt.c (expand_case): Likewise.
1139
11402006-03-13 Zdenek Dvorak <dvorakz@suse.cz>
1141
1142 PR rtl-optimization/26254
1143 * loop-invariant.c (seq_insns_valid_p): New function.
1144 (move_invariant_reg): Only emit new code if it is valid.
1145
11462006-03-13 Zdenek Dvorak <dvorakz@suse.cz>
1147
1148 * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
1149 Removed.
1150 (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
1151 (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
1152 (commit_one_edge_insertion): Do not look for loop notes.
1153
11542006-03-13 Zdenek Dvorak <dvorakz@suse.cz>
1155
1156 * jump.c (follow_jumps): Do not check for loop notes. Move check for
1157 flag_test_coverage out of loop.
1158
11592006-03-13 Zdenek Dvorak <dvorakz@suse.cz>
1160
1161 * final.c (shorten_branches): Remove outdated comment, and turn
1162 the if branch that guards it to continue.
1163
11642006-03-13 Zdenek Dvorak <dvorakz@suse.cz>
1165
1166 * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
1167 * cfgloop.h (struct loop): Remove unused fields.
1168
11692006-03-13 Kazu Hirata <kazu@codesourcery.com>
1170
1171 * doc/invoke.texi (-fdump-rtl-loop): Remove.
1172 (-dL, -fdump-rtl-loop2): Update the dump file names
1173
1174 * doc/invoke.texi: Update dump file names.
1175
11762006-03-12 Steven Bosscher <stevenb.gcc@gmail.com>
1177
1178 * predict.c (estimate_probability): Remove.
1179 * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
1180 * basic-block.h (estimate_probability): Remove prototype.
1181 * passes.c (finish_optimization_passes): Dump branch prediction or
1182 profiling heuristics to the .profile tree dump.
1183 (init_optimization_passes): Unqueue pass_branch_prob.
1184
1185 * doc/invoke.texi (-fdump-rtl-bp): Remove.
1186
11872006-03-11 Steven Bosscher <stevenb.gcc@gmail.com>
1188
1189 * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
1190 * rtl.h (LABEL_NEXTREF): Remove field accessor.
1191
11922006-03-11 Eric Botcazou <ebotcazou@adacore.com>
1193
1194 * function.h (frame_offset_overflow): Declare.
1195 * function.c (frame_offset_overflow): New function.
1196 (assign_stack_local_1): Call it to detect that the offset overflows.
1197 * cfgexpand.c (alloc_stack_frame_space): Likewise.
1198
11992006-03-11 Steven Bosscher <stevenb.gcc@gmail.com>
1200
1201 * config/sh/sh.c: Include alloc-pool.h.
1202 (label_ref_list_pool): New alloc pool.
1203 (label_ref_list_t): New type for lists of labels.
1204 (struct pool_node): Make wend a label_ref_list_t.
1205 (add_constant): Use the new type, eradicate LABEL_NEXTREF
1206 references.
1207 (dump_table): Likewise.
1208 (sh_reorg): Set up the alloc pool before using add_constant and
1209 dump_table, and destroy it when finishing.
1210
12112006-03-11 Richard Sandiford <richard@codesourcery.com>
1212
1213 * config/mips/mips.c: Remove redundant comment.
1214
12152006-03-10 Jason Merrill <jason@redhat.com>
1216
1217 PR c/26004
1218 * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
1219 the target was declared 'register'.
1220
12212006-03-10 Adam Nemet <anemet@caviumnetworks.com>
1222
1223 * genpreds.c (write_insn_constraint_len): Change definition of
1224 insn_constraint_len to return size_t to match the declaration.
1225
12262006-03-10 DJ Delorie <dj@redhat.com>
1227
1228 * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
1229 start at zero.
1230 (m32c_expand_insv): Fix test for an AND mask.
1231
12322006-03-10 Richard Guenther <rguenther@suse.de>
1233
1234 PR middle-end/26565
1235 * builtins.c (get_pointer_alignment): Handle component
1236 references for field alignment.
1237
12382006-03-10 J"orn Rennecke <joern.rennecke@st.com>
1239
1240 * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
1241 when building with libgloss.
1242 (sh*elf): Implement --without-fp option.
1243 (sh64-superh-linux*): Don't multilib.
1244
12452006-03-10 J"orn Rennecke <joern.rennecke@st.com>
1246
1247 * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
1248
12492006-03-09 Andrew Pinski <pinskia@physics.uc.edu>
1250
1251 * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
1252 Set it when one of the replacement functions returned true.
1253 Return TODO_cleanup_cfg if cfgchanged is true.
1254 (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
1255
12562006-03-09 Adam Nemet <anemet@caviumnetworks.com>
1257
1258 * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
1259 instead of gen_lowpart.
1260
12612006-03-09 Richard Sandiford <richard@codesourcery.com>
1262
1263 * config/mips/mips-protos.h (mips_output_conditional_branch): Change
1264 interface.
1265 (mips_output_order_conditional_branch): Declare.
1266 * config/mips/mips.h (MIPS_BRANCH): New macro.
1267 * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
1268 for the comparison. Use gen_condjump.
1269 (mips_output_conditional_branch): Rework interface to take the
1270 asm templates for a direct branch and the inverse of a direct branch.
1271 (mips_output_order_conditional_branch): New function.
1272 (mips_builtin_branch_and_move): New function.
1273 (mips_expand_builtin_compare): Use it. Use VOIDmode for the
1274 branch condition. Use gen_single_cc as the condition for
1275 __builtin_mips_upper_* or __builtin_mips_lower_*.
1276 (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
1277 Use VOIDmode for the branch condition.
1278 * config/mips/predicates.md (order_operator): New predicate.
1279 * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
1280 (branch_fp): Rename to...
1281 (*branch_fp): ...this. Remove mode from comparison operator.
1282 Use new mips_output_conditional_branch interface.
1283 (branch_fp_inverted): Rename to...
1284 (*branch_fp_inverted): ...this and update as for *branch_fp.
1285 (*branch_zero<mode>): Rename to...
1286 (*branch_order<mode>): ...this. Remove mode from comparison operator.
1287 Use mips_output_order_conditional_branch. Only accept ordered
1288 comparisons.
1289 (*branch_zero<mode>_inverted): Rename to...
1290 (*branch_order<mode>_inverted): ...this and update as for
1291 *branch_order<mode>.
1292 (*branch_equality<mode>): Accept zero as the second operand to
1293 the equality operator. Use the new mips_output_conditional_branch
1294 interface.
1295 (*branch_equality<mode>_inverted): Likewise.
1296 (condjump): New expander.
1297 * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
1298 operator.
1299 * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
1300 (bc1any2t, bc1any2f): Likewise.
1301 (single_cc): New expander.
1302 (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
1303
13042006-03-09 Richard Sandiford <richard@codesourcery.com>
1305
1306 * doc/md.texi: Update documentation of MIPS constraints.
1307 * config/mips/constraints.md: New file.
1308 * config/mips/mips.md: Include it.
1309 * config/mips/mips.c (mips_char_to_class): Delete.
1310 (override_options): Don't initialize mips_char_to_class.
1311 * config/mips/mips.h (mips_char_to_class): Delete.
1312 (REG_CLASS_FROM_LETTER): Delete.
1313 (CONST_OK_FOR_LETTER_P): Delete.
1314 (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
1315 (EXTRA_CONSTRAINT_Y): Delete.
1316 (EXTRA_CONSTRAINT_STR): Delete.
1317 (CONSTRAINT_LEN): Delete.
1318 (EXTRA_MEMORY_CONSTRAINT): Delete.
1319
13202006-03-09 Diego Novillo <dnovillo@redhat.com>
1321
1322 * tree-cfg.c (move_block_to_fn): Remove the statements from the
1323 original fn's eh regions.
1324
13252006-03-09 Eric Botcazou <ebotcazou@adacore.com>
1326
1327 * fold-const.c (build_range_check): Make sure to use a valid type to
1328 apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
1329 transformation.
1330
1331 (range_predecessor): New static function.
1332 (range_successor): Likewise.
1333 (merge_ranges): Use them to compute predecessors and successors of
1334 range bounds.
1335
13362006-03-09 Roger Sayle <roger@eyesopen.com>
1337
1338 PR middle-end/26561
1339 * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
1340 X op C3, consider whether C3 overflows towards +Inf or -Inf.
1341
13422006-03-08 DJ Delorie <dj@redhat.com>
1343
1344 * config/m32c/addsub.md (addqi3): Disparage a0/a1.
1345 (addpsi3): Expand to include memory operands. Remove
1346 reload-specific splits.
1347 * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
1348 (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
1349 (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
1350 (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
1351 (shift1_qi, shift1_hi, insv): New.
1352 * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
1353 (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
1354 cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
1355 cond_to_int): New.
1356 * config/m32c/m32c-protos.h: Update as needed.
1357 * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
1358 default the Rcr, Rcl, Raw, and Ral constraints. Add Ra0 and Ra1.
1359 Fail for unrecognized R* constraints.
1360 (m32c_cannot_change_mode_class): Be more picky about pseudos.
1361 (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
1362 (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
1363 Add Sp constraint.
1364 (m32c_init_libfuncs): New.
1365 (m32c_legitimate_address_p): Add debug wrapper.
1366 (m32c_rtx_costs): New.
1367 (m32c_address_cost): New.
1368 (conversions): Add 'B' prefix.
1369 (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
1370 operands, or word regnames for QI operands. 'B' prints bit
1371 position.
1372 (m32c_expand_setmemhi): New.
1373 (m32c_expand_movmemhi): New.
1374 (m32c_expand_movstr): New.
1375 (m32c_expand_cmpstr): New.
1376 (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
1377 (m32c_expand_neg_mulpsi3): Handle non-ints.
1378 (m32c_cmp_flg_0): New.
1379 (m32c_expand_movcc): New.
1380 (m32c_expand_insv): New.
1381 (m32c_scc_pattern): New.
1382 * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS. Take
1383 a0/a1 out of SIregs.
1384 (STORE_FLAG_VALUE): New.
1385 * config/m32c/m32c.md: Add unspecs for string moves. Define various mode and
1386 code macros.
1387 (no_insn): New.
1388 * config/m32c/mov.md: Make constraints more liberal.
1389 (zero_extendqihi2): Optimize r0/r1 case.
1390 * config/m32c/muldiv.md (mulpsi3): Check for intvals.
1391 * config/m32c/predicates.md (m32c_any_operand): New.
1392 (m32c_nonimmediate_operand): New.
1393 (m32c_hl_operand): New.
1394 (m32c_r3_operand): New.
1395 (ap_operand): New.
1396 (ma_operand): New.
1397 (memsym_operand): New.
1398 (memimmed_operand): New.
1399 (a_qi_operand): New.
1400 (m32c_eqne_operator): New.
1401 (m32c_1bit8_operand): New.
1402 (m32c_1bit16_operand): New.
1403 (m32c_1mask8_operand): New.
1404 (m32c_1mask16_operand): New.
1405 * config/m32c/blkmov.md: New file.
1406 * config/m32c/t-m32c (MD_FILES): Add blkmov.
1407
14082006-03-08 Andreas Tobler <a.tobler@schweiz.ch>
1409
1410 * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
1411 unsigned to fix signed/unsigned comparison issue in
1412 DWARF2_FRAME_REG_OUT.
1413 (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
1414 unsigned comparison issue in DWARF2_FRAME_REG_OUT.
1415
1416 * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
1417 of ptr into the ENABLE_CHECKING section.
1418
14192006-03-08 Jeff Law <law@redhat.com>
1420
1421 * tree-vrp.c (infer_value_range): Only count pointer uses
1422 and dereferences if -fdelete-null-pointer-checks is enabled.
1423
1424 * tree-vrp.c (find_assert_locations): Infer value ranges for
1425 single use pointers, but do not create ASSERT_EXPRs for them.
1426 When a non-null range is inferred for a pointer, backwards
1427 propagate that range to other equivalent pointers through the
1428 use-def chain.
1429
14302006-03-08 Paolo Bonzini <bonzini@gnu.org>
1431
1432 PR bootstrap/26500
1433 * Makefile.in (dvi, html, install-info): Invoke the corresponding
1434 language hook targets.
1435 * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
1436 objcp/Make-lang.in: Create stub rules for dvi, html, install-info
1437 if language hook targets were missing.
1438
14392006-03-07 Zdenek Dvorak <dvorakz@suse.cz>
1440
1441 * tree-ssa-opfinalize.h: Removed.
1442 * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
1443 dependency.
1444 * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
1445 (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
1446 INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
1447 add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
1448 finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
1449 finalize_ssa_v_must_def_ops): New.
1450
14512006-03-07 Kenneth Zadeck <zadeck@naturalbridge.com>
1452
1453 * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
1454 block as parameter.
1455
14562006-03-07 Geoffrey Keating <geoffk@apple.com>
1457
1458 * varasm.c (assemble_end_function): Say that 'fnname' is unused.
1459
1460 * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
1461 addresses with offsets; reorganize.
1462
1463 * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
1464 (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
1465 (expand_builtin_init_dwarf_reg_sizes): Likewise.
1466
14672006-03-08 David Billinghurst <David.Billinghurst@riotinto.com>
1468
1469 PR target/26588
1470 * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
1471
14722006-03-08 Ben Elliston <bje@au.ibm.com>
1473
1474 * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
1475
14762006-03-07 Aldy Hernandez <aldyh@redhat.com>
1477
1478 PR gomp/26238
1479 * doc/passes.texi (Tree-SSA passes): Document omp lowering and
1480 expansion.
1481
14822006-03-07 Richard Guenther <rguenther@suse.de>
1483
1484 PR tree-optimization/26587
1485 * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
1486
14872006-03-07 Richard Sandiford <richard@codesourcery.com>
1488
1489 * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
1490
14912006-03-07 Richard Sandiford <richard@codesourcery.com>
1492
1493 * hooks.c (hook_bool_mode_rtx_true): New function.
1494 * hooks.h (hook_bool_mode_rtx_true): Declare.
1495 * toplev.c (compile_file): Call output_shared_constant_pool.
1496 * varasm.c (shared_constant_pool): New variable.
1497 (assemble_start_function, assemble_end_function): Remove arguments
1498 from call to output_constant_pool.
1499 (create_constant_pool): New function, split out from...
1500 (init_varasm_status): ...here.
1501 (force_const_mem): Choose between the shared and per-function constant
1502 pools. Set current_function_uses_const_pool when reusing old entries
1503 as well as when creating new ones.
1504 (mark_constant): Ignore data argument.
1505 (mark_constants): Remove pool argument.
1506 (mark_constant_pool): Likewise. Use current_function_uses_const_pool
1507 to decide whether the function uses a constant pool.
1508 (output_constant_pool_contents): New function, split out from...
1509 (output_constant_pool): ...here.
1510 (output_shared_constant_pool): New function.
1511 (init_varasm_once): Initialize shared_constant_pool.
1512 * output.h (output_constant_pool): Delete.
1513 (output_shared_constant_pool): Declare.
1514 * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
1515 * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
1516
15172006-03-06 Nick Clifton <nickc@redhat.com>
1518
1519 * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
1520 flag_strength_reduce.
1521
15222006-03-06 Ben Elliston <bje@au.ibm.com>
1523
1524 * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
1525 x86_64-*-linux* configurations.
1526
1527 * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
1528 (LIBGCC2_WORDS_BIG_ENDIAN): Define.
1529
15302006-03-05 Kazu Hirata <kazu@codesourcery.com>
1531
1532 * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
1533 Remove.
1534 * basic-block.h: Remove the extern for
1535 rediscover_loops_after_threading.
1536
1537 * cfgloop.c (cancel_loop): Make it static.
1538 * cfgloop.h: Remove the prototype for cancel_loop.
1539
1540 * flow.c (recompute_reg_usage): Make it static.
1541 * rtl.h: Remove the prototype for recompute_reg_usage.
1542
1543 * function.c (use_return_register): Make it static.
1544 * function.h: Remove the prototype.
1545
15462006-03-05 Kazu Hirata <kazu@codesourcery.com>
1547
1548 * recog.c (volatile_mem_p, validate_change_maybe_volatile):
1549 Remove.
1550 * recog.h: Remove the prototype for
1551 validate_change_maybe_volatile.
1552
15532006-03-05 Kazu Hirata <kazu@codesourcery.com>
1554
1555 * rtlanal.c (replace_reg): Remove.
1556 * rtl.h: Remove the prototype for replace_reg.
1557
15582006-03-05 Kazu Hirata <kazu@codesourcery.com>
1559
1560 * regclass.c (reg_scan_update): Remove.
1561 (reg_scan_mark_refs): Remove the last argument.
1562 * rtl.h: Remove the prototype for reg_scan_update.
1563
15642006-03-04 Kazu Hirata <kazu@codesourcery.com>
1565
1566 * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
1567 combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
1568 config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
1569 config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
1570 df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
1571 loop-invariant.c, omp-low.c, opts.c, passes.c,
1572 rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
1573 tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
1574 tree-ssa-structalias.c, tree-ssa-threadedge.c,
1575 tree-ssa-threadupdate.c, tree-vect-patterns.c,
1576 tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
1577 unwind-dw2.c: Fix comment typos. Follow spelling conventions.
1578
15792006-03-04 Kazu Hirata <kazu@codesourcery.com>
1580
1581 * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
1582 * dwarf2out.h: Remove the prototype for
1583 dwarf2out_add_library_unit_info.
1584
15852006-03-04 Kazu Hirata <kazu@codesourcery.com>
1586
1587 * tree.c (add_var_to_bind_expr): Remove.
1588 * tree.h: Remove the prototype for add_var_to_bind_expr.
1589
15902006-03-04 Kazu Hirata <kazu@codesourcery.com>
1591
1592 * regclass.c (n_non_fixed_regs): Remove.
1593 (init_reg_sets_1, globalize_reg): Remove all uses of
1594 n_non_fixed_regs.
1595 * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
1596
15972006-03-04 Kazu Hirata <kazu@codesourcery.com>
1598
1599 * rtlanal.c (insns_safe_to_move_p): Remove.
1600 * rtl.h: Remove the prototype for insns_safe_to_move_p.
1601
16022006-03-04 Kazu Hirata <kazu@codesourcery.com>
1603
1604 * expmed.c (expand_mult_add): Remove.
1605 * expr.h: Remove the prototype for expand_mult_add.
1606
16072006-03-04 Jakub Jelinek <jakub@redhat.com>
1608
1609 * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
1610 and REG_SAVED_VAL_EXP constants.
1611 * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
1612 (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
1613 Handle regs stored by value.
1614 (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
1615 (execute_cfa_program): Handle DW_CFA_val_offset,
1616 DW_CFA_val_offset_sf and DW_CFA_val_expression.
1617 (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
1618 value specially. Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
1619 (uw_install_context_1): Handle target regs stored by value.
1620
16212006-03-03 Daniel Berlin <dberlin@dberlin.org>
1622
1623 * tree-sra.c (tree_sra): Return todoflags;
1624 (generate_one_element): Set TODO_update_smt_usage if needed.
1625 (pass_sra): Remove TODO_update_smt_usage.
1626 * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
1627 parameter.
1628 (tree_ssa_forward_propagate_single_use_vars): Return
1629 TODO_update_smt_usage if we need to update SMT usage.
1630 (pass_forwprop): Remove TODO_update_smt_usage.
1631
16322006-03-03 Diego Novillo <dnovillo@redhat.com>
1633
1634 * tree-ssa-operands.c: Tidy whitespace. Fix spelling.
1635 (correct_use_link): Remove reference to get_stmt_operands.
1636 (update_stmt_operands): Likewise.
1637 (get_modify_expr_operands): New function factored out of
1638 parse_ssa_operands and get_expr_operands.
1639 Try to create V_MUST_DEFs for LHS by default.
1640 (get_expr_operands) <case MODIFY_EXPR>: Call
1641 get_modify_expr_operands.
1642 <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
1643 <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
1644 (parse_ssa_operands) <case MODIFY_EXPR>: Call
1645 get_modify_expr_operands.
1646
16472006-03-03 Kazu Hirata <kazu@codesourcery.com>
1648
1649 * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
1650 * tree-flow.h: Remove the prototype for
1651 referenced_var_lookup_if_exists.
1652
16532006-03-03 Steve Ellcey <sje@cup.hp.com>
1654
1655 PR rtl-optimization/26345
1656 PR target/19061
1657 * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
1658
16592006-03-03 Roger Sayle <roger@eyesopen.com>
1660
1661 PR tree-optimization/26524
1662 * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
1663 fold_convert to create a constant of the appropriate type.
1664
16652006-03-03 Richard Sandiford <richard@codesourcery.com>
1666
1667 * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
1668 SYMBOL_REF_IN_BLOCK_P.
1669 * doc/rtl.texi: Likewise. Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
1670 of SYMBOL_FLAG_IN_BLOCK.
1671 * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
1672 instead of SYMBOL_REF_IN_BLOCK_P.
1673 * explow.c (use_anchored_address): Likewise.
1674 * rtl.c (rtx_size): Likewise.
1675 * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
1676 instead of SYMBOL_FLAG_IN_BLOCK.
1677 (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
1678 SYMBOL_REF_IN_BLOCK_P.
1679 (assemble_variable): Likewise.
1680 (output_constant_def_contents): Likewise.
1681 (output_constant_pool): Likewise.
1682 (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
1683 instead of SYMBOL_FLAG_IN_BLOCK.
1684 * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
1685 SYMBOL_REF_IN_BLOCK_P.
1686 (SYMBOL_REF_BLOCK): Likewise.
1687 (SYMBOL_REF_OFFSET): Likewise.
1688 (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
1689 SYMBOL_REF_IN_BLOCK_P.
1690 (SYMBOL_FLAG_IN_BLOCK): Replace with...
1691 (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
1692 (SYMBOL_REF_IN_BLOCK_P): Replace with...
1693 (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
1694
16952006-03-03 Jakub Jelinek <jakub@redhat.com>
1696
1697 * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
1698
16992006-03-02 Roger Sayle <roger@eyesopen.com>
1700
1701 * simplify-rtx.c (simplify_unary_operation): When simplifying
1702 (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
1703 that we perform the right shift in the appropriate mode, and
1704 then extend or truncate the result to requested mode.
1705
17062006-03-03 Zdenek Dvorak <dvorakz@suse.cz>
1707
1708 * gengtype.c (main): Handle double_int type.
1709 * tree.h (struct tree_int_cst): Make type of int_cst double_int.
1710 * double-int.c: New file.
1711 * double-int.h: New file.
1712 * system.h: Include doubleint.h.
1713 * Makefile.in (SYSTEM_H): Include double-int.h.
1714 (double-int.o): Add.
1715
17162006-03-03 Joseph S. Myers <joseph@codesourcery.com>
1717
1718 PR bootstrap/26478
1719 * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
1720 copying over it.
1721
17222006-03-02 Zdenek Dvorak <dvorakz@suse.cz>
1723
1724 * tree-vrp.c (remove_range_assertions): Do not update statements
1725 unnecessarily.
1726
17272006-03-02 Zdenek Dvorak <dvorakz@suse.cz>
1728
1729 * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
1730 cleanup.
1731 * gcse.c (rest_of_handle_gcse): Ditto.
1732 * except.c (gate_handle_eh): Ditto.
1733 * cfgcleanup.c (rest_of_handle_jump2): Ditto.
1734 * basic-block.h (CLEANUP_PRE_LOOP): Remove.
1735
17362006-03-02 Eric Christopher <echristo@apple.com>
1737
1738 * config/i386/i386.c (machopic_output_stub): Add indirection to
1739 jump.
1740
17412006-03-02 Zdenek Dvorak <dvorakz@suse.cz>
1742
1743 * loop.c: Removed.
1744
17452006-03-02 David S. Miller <davem@sunset.davemloft.net>
1746
1747 Sun Niagara specific optimizations.
1748 * config.gcc: Recognize niagara as target.
1749 * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
1750 (TARGET_CPU_niagara): Define.
1751 (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
1752 (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
1753 (CPP_CPU_SPEC): Handle -mcpu=niagara.
1754 (ASM_CPU_SPEC): Likewise.
1755 (PROCESSOR_NIAGARA): New enum entry.
1756 (REGISTER_MOVE_COST): Handle Niagara.
1757 (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
1758 * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
1759 (sparc_override_options): Recognize "niagara", set appropriate
1760 default MASK_* values for it, and align functions to 32-bytes
1761 by default just like ULTRASPARC/ULTRASPARC3.
1762 (sparc_initialize_trampoline): Handle niagara like ultrasparc.
1763 (sparc64_initialize_trampoline): Likewise.
1764 (sparc_use_sched_lookahead): Use zero for niagara.
1765 (sparc_issue_rate): Use one for niagara.
1766 * config/sparc/niagara.md: New file.
1767 * config/sparc/sparc.md: Include it.
1768 * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
1769 ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
1770 when default cpu is niagara.
1771 (CPP_CPU_SPEC): Handle -mcpu=niagara.
1772 (ASM_CPU_SPEC): Likewise.
1773 * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
1774 when default cpu is niagara.
1775 (ASM_CPU_SPEC): Handle -mcpu=niagara.
1776 * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
1777 just like v9/ultrasparc/ultrasparc3.
1778 * doc/invoke.texi: Add documentation for "niagara" and improve
1779 existing documentation for ultrasparc variants.
1780
17812006-03-02 Diego Novillo <dnovillo@redhat.com>
1782
1783 * tree-ssa-operands.c (update_stmt_operands): Update documentation.
1784
17852006-03-02 Richard Sandiford <richard@codesourcery.com>
1786
1787 * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
1788 (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
1789 and say that only one is needed.
1790 * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
1791 * target.h (have_switchable_bss_sections): New hook.
1792 * explow.c (use_anchored_address): Check that the symbol is in a block.
1793 * varasm.c (tls_comm_section, comm_section, lcomm_section)
1794 (bss_noswitch_section): New variables.
1795 (get_unnamed_section): Add SECTION_UNNAMED to the flags.
1796 (get_noswitch_section): New function.
1797 (get_block_for_section): Allow SECT to be null.
1798 (unlikely_text_section_p): Use SECTION_STYLE.
1799 (bss_initializer_p): New function.
1800 (get_variable_section): Move earlier in file. Take a new argument,
1801 prefer_noswitch_p. Move bss checks from assemble_variable to here.
1802 Return one of the new *_sections in such cases.
1803 (get_block_for_decl): New function, extracting some logic from
1804 use_blocks_for_decl_p.
1805 (change_symbol_section): Remove in favor of...
1806 (change_symbol_block): ...this new function.
1807 (use_blocks_for_decl_p): Remove checks now performed by
1808 get_block_for_decl.
1809 (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
1810 (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
1811 (emit_local, emit_bss, emit_common): ...these new functions.
1812 Return true if the alignment was honored.
1813 (emit_tls_common): New function.
1814 (asm_emit_uninitialised): Delete.
1815 (assemble_variable_noswitch): New function, split out from...
1816 (assemble_variable): ...here. Don't make decisions about common
1817 variables here. Globalize all public decls that go into non-common
1818 sections. Check whether SYMBOL_REF_BLOCK is null.
1819 (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
1820 (output_constant_pool): Likewise.
1821 (init_varasm_once): Initialize the new section variables.
1822 (have_global_bss_p): New function.
1823 (categorize_decl_for_section): Use bss_initializer_p.
1824 (switch_to_section): Use SECTION_STYLE. Abort for SECTION_NOSWITCH.
1825 (place_block_symbol): Assert that the symbol must be in a block.
1826 * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
1827 (TARGET_INITIALIZER): Include it.
1828 * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
1829 * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
1830 (SECTION_MACH_DEP): Bump by two.
1831 (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
1832 (unnamed_section): Mention SECTION_UNNAMED in comment.
1833 (named_section): Likewise SECTION_NAMED.
1834 (noswitch_section_callback): New type.
1835 (noswitch_section): New structure.
1836 (section): Add a noswitch_section alternative.
1837 (SECTION_STYLE): New macro.
1838 (tls_comm_section, comm_section, lcomm_section): Declare.
1839 (bss_noswitch_section, have_global_bss_p): Declare.
1840 * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
1841 * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
1842 Override.
1843 * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
1844 * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
1845 Override.
1846
18472006-03-02 Daniel Berlin <dberlin@dberlin.org>
1848
1849 * gcc/tree-vrp.c (execute_vrp): Return value.
1850 * gcc/regrename.c (rest_of_handle_regrename): Ditto.
1851 * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
1852 * gcc/tree-complex.c (tree_lower_complex): Ditto.
1853 (tree_lower_complex_O0): Ditto.
1854 * gcc/tracer.c (rest_of_handle_tracer): Ditto.
1855 * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
1856 * gcc/postreload.c (rest_of_handle_postreload): Ditto.
1857 * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
1858 (execute_tail_calls): Ditto.
1859 * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1860 * gcc/tree.h (init_function_for_compilation): Ditto.
1861 * gcc/ipa-cp.c (ipcp_driver): Ditto.
1862 * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
1863 * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
1864 * gcc/final.c (compute_alignments): Ditto.
1865 (rest_of_handle_final): Ditto.
1866 (rest_of_handle_shorten_branches): Ditto.
1867 (rest_of_clean_state): Ditto.
1868 * gcc/omp-low.c (execute_expand_omp): Ditto.
1869 (execute_lower_omp): Ditto.
1870 * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
1871 * gcc/ipa-reference.c (static_execute): Ditto.
1872 * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
1873 * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
1874 (rest_of_handle_machine_reorg): Ditto.
1875 * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
1876 * gcc/flow.c (recompute_reg_usage): Ditto.
1877 (rest_of_handle_remove_death_notes): Ditto.
1878 (rest_of_handle_life): Ditto.
1879 (rest_of_handle_flow2): Ditto.
1880 * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
1881 * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
1882 (do_ssa_store_ccp): Ditto.
1883 (execute_fold_all_builtins): Ditto.
1884 * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
1885 * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
1886 * gcc/ipa-pure-const.c (static_execute): Ditto.
1887 * gcc/cse.c (rest_of_handle_cse): Ditto.
1888 (rest_of_handle_cse2): Ditto.
1889 * gcc/web.c (rest_of_handle_web): Ditto.
1890 * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
1891 * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
1892 * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
1893 * gcc/tree-nrv.c (tree_nrv): Ditto.
1894 (execute_return_slot_opt): Ditto.
1895 * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
1896 (create_structure_vars): Ditto.
1897 * gcc/loop-init.c (rtl_loop_init): Ditto.
1898 (rtl_loop_done): Ditto.
1899 (rtl_move_loop_invariants): Ditto.
1900 (rtl_unswitch): Ditto.
1901 (rtl_unroll_and_peel_loops): Ditto.
1902 (rtl_doloop): Ditto.
1903 * gcc/gimple-low.c (lower_function_body): Ditto.
1904 (mark_used_blocks): Ditto.
1905 * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
1906 * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
1907 (cgraph_early_inlining): Ditto.
1908 * gcc/global.c (rest_of_handle_global_alloc): Ditto.
1909 * gcc/jump.c (cleanup_barriers): Ditto.
1910 (purge_line_number_notes): Ditto.
1911 * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
1912 (rest_of_handle_if_after_reload): Ditto.
1913 * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
1914 (tree_ssa_loop_im): Ditto.
1915 (tree_ssa_loop_unswitch): Ditto.
1916 (tree_vectorize): Ditto.
1917 (tree_linear_transform): Ditto.
1918 (tree_ssa_loop_ivcanon): Ditto.
1919 (tree_ssa_empty_loop): Ditto.
1920 (tree_ssa_loop_bounds): Ditto.
1921 (tree_complete_unroll): Ditto.
1922 (tree_ssa_loop_prefetch): Ditto.
1923 (tree_ssa_loop_ivopts): Ditto.
1924 (tree_ssa_loop_done): Ditto.
1925 * gcc/predict.c (tree_estimate_probability): Ditto.
1926 * gcc/recog.c (split_all_insns_noflow): Ditto.
1927 (rest_of_handle_peephole2): Ditto.
1928 (rest_of_handle_split_all_insns): Ditto.
1929 * gcc/tree-eh.c (lower_eh_constructs): Ditto.
1930 * gcc/regmove.c (rest_of_handle_regmove): Ditto.
1931 (rest_of_handle_stack_adjustments): Ditto.
1932 * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
1933 * gcc/function.c (instantiate_virtual_regs): Ditto.
1934 (init_function_for_compilation): Ditto.
1935 (rest_of_handle_check_leaf_regs): Ditto.
1936 * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
1937 (rest_of_handle_gcse): Ditto.
1938 * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
1939 * gcc/alias.c (rest_of_handle_cfg): Ditto.
1940 * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
1941 * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
1942 * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
1943 * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
1944 * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
1945 * gcc/tree-dfa.c (find_referenced_vars): Ditto.
1946 * gcc/except.c (set_nothrow_function_flags): Ditto.
1947 (convert_to_eh_region_ranges): Ditto.
1948 (rest_of_handle_eh): Ditto.
1949 * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
1950 (remove_unnecessary_notes): Ditto.
1951 * gcc/except.h (set_nothrow_function_flags): Ditto.
1952 (convert_to_eh_region_ranges): Ditto.
1953 * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
1954 * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
1955 * gcc/tree-ssa-pre.c (do_pre): Ditto.
1956 (execute_fre): Ditto.
1957 * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
1958 (rest_of_handle_jump2): Ditto.
1959 * gcc/tree-sra.c (tree_sra): Ditto.
1960 * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
1961 (execute_mudflap_function_decls): Ditto.
1962 * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
1963 (do_store_copy_prop): Ditto.
1964 * gcc/ipa-prop.h (ipcp_driver): Ditto.
1965 * gcc/cfglayout.c (insn_locators_initialize): Ditto.
1966 * gcc/tree-ssa-forwprop.c
1967 (tree_ssa_forward_propagate_single_use_vars): Ditto.
1968 * gcc/cfglayout.h (insn_locators_initialize): Ditto.
1969 * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
1970 * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
1971 (execute_late_warn_uninitialized): Ditto.
1972 * gcc/rtl.h (cleanup_barriers): Ditto.
1973 (split_all_insns_noflow): Ditto.
1974 (purge_line_number_notes): Ditto.
1975 (unshare_all_rtl): Ditto.
1976 (remove_unnecessary_notes): Ditto.
1977 (recompute_reg_usage): Ditto.
1978 (variable_tracking_main): Ditto.
1979 * gcc/integrate.c (emit_initial_value_sets): Ditto.
1980 * gcc/integrate.h (emit_initial_value_sets): Ditto.
1981 * gcc/tree-optimize.c (execute_free_datastructures): Ditto
1982 (execute_free_cfg_annotations): Ditto.
1983 (execute_fixup_cfg): Ditto.
1984 (execute_cleanup_cfg_pre_ipa): Ditto.
1985 (execute_cleanup_cfg_post_optimizing): Ditto.
1986 (execute_init_datastructures): Ditto.
1987 * gcc/tree-object-size.c (compute_object_sizes): Ditto.
1988 * gcc/combine.c (rest_of_handle_combine): Ditto.
1989 * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
1990 * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
1991 (rest_of_handle_reorder_blocks): Ditto.
1992 (rest_of_handle_partition_blocks): Ditto.
1993 * gcc/var-tracking.c (variable_tracking_main): Ditto.
1994 * gcc/tree-profile.c (tree_profiling): Ditto.
1995 * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
1996 * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
1997 * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
1998 (rest_of_handle_sched2): Ditto.
1999 * gcc/basic-block.h (free_bb_insn): Ditto.
2000 * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
2001 * gcc/tree-cfg.c (execute_build_cfg): Ditto.
2002 (remove_useless_stmts): Ditto.
2003 (split_critical_edges): Ditto.
2004 (execute_warn_function_return): Ditto.
2005 (execute_warn_function_noreturn): Ditto.
2006 * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
2007 * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
2008 * gcc/passes.c (execute_one_pass): Run additional
2009 todos returned by execute function.
2010 * gcc/tree-pass.h (struct tree_opt_pass): Make execute
2011 return a value.
2012
20132006-03-02 Richard Guenther <rguenther@suse.de>
2014
2015 * tree-ssa-alias.c (find_used_portions): Consider taking
2016 the address as making the variable not write-only.
2017
20182006-03-02 Nick Clifton <nickc@redhat.com>
2019
2020 * config.gcc (default_use_cxa_atexit): Extend the description of
2021 this configure variable. Set its default value to "yes" for
2022 Linux, NetBSD and ELF targets on the assumption that they will
2023 use C libraries with the __cxa_atexit function.
2024
20252006-03-02 Ben Elliston <bje@au.ibm.com>
2026
2027 * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
2028 parameter as unused to suppress a build warning.
2029
20302006-03-02 Ben Elliston <bje@au.ibm.com>
2031
2032 * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
2033 config/dfp-bit.c.
2034
20352006-03-01 Roger Sayle <roger@eyesopen.com>
2036
2037 PR other/26489
2038 * gthr-posix.h (__gthrw2): Define to take three parameters, the
2039 declared name, the weak reference name, and the typeof name.
2040 (__gthrw): Avoid expanding the declared name suffix.
2041 (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
2042
20432006-03-01 Jakub Jelinek <jakub@redhat.com>
2044
2045 * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
2046 from DWARF 3.
2047 (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
2048 DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
2049 DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
2050 DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
2051 DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
2052 (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
2053 (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
2054 DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
2055 (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
2056 DW_DS_leading_separate, DW_DS_trailing_separate): New.
2057 (DW_END_default, DW_END_big, DW_END_little): New.
2058 (DW_END_lo_user, DW_END_hi_user): Define.
2059 (DW_LNE_lo_user, DW_LNE_hi_user): Define.
2060 (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
2061 (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
2062 DW_LANG_D): New.
2063
20642006-03-01 Diego Novillo <dnovillo@redhat.com>
2065
2066 * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
2067 Update all users.
2068 * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
2069 Update all users.
2070 (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
2071 Update all users.
2072 * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
2073 Update all users.
2074 * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
2075 to 'symbol_mem_tag'.
2076 Update all users.
2077 * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
2078 rename.
2079
20802006-03-01 Roger Sayle <roger@eyesopen.com>
2081
2082 * builtins.c (fold_builtin_copysign): Delete unreachable code.
2083
20842006-03-01 Andrew Pinski <pinskia@physics.uc.edu>
2085
2086 PR target/25761
2087 * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
2088 MACHO_DYNAMIC_NO_PIC_P.
2089 (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
2090
20912006-03-01 Andrew Pinski <pinskia@physics.uc.edu>
2092
2093 PR target/26389
2094 * config/darwin-protos.h (darwin_asm_output_anchor):
2095 Declare.
2096 * config/darwin-sections.def (cstring_section):
2097 Add SECTION_MERGE to the flags.
2098 (literal4_section): Likewise.
2099 (literal8_section): Likewise.
2100 (objc_selector_refs_section): Likewise.
2101 (objc_cls_refs_section): Likewise.
2102 * config/darwin.c (darwin_asm_output_anchor): New
2103 function.
2104 * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
2105
21062006-03-01 Daniel Berlin <dberlin@dberlin.org>
2107
2108 Fix PR tree-optimization/26443
2109 * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
2110 to todo and PROP_tmt_usage to properties_destroyed.
2111 * tree-ssa-ccp.c (pass_ccp): Ditto.
2112 (pass_store_ccp): Ditto.
2113 * tree-ssa-dom.c (pass_dominator): Ditto.
2114
21152006-03-01 Diego Novillo <dnovillo@redhat.com>
2116
2117 * tree-ssa-operands.c: Cleanup whitespace.
2118 (get_asm_expr_operands): Move before first invocation.
2119 (get_indirect_ref_operands): Likewise.
2120 (get_tmr_operands): Likewise.
2121 (get_call_expr_operands): Likewise.
2122 (append_def): Likewise.
2123 (append_use): Likewise.
2124 (append_v_may_def): Likewise.
2125 (append_v_must_def): Likewise.
2126 (add_call_clobber_ops): Likewise.
2127 (add_call_read_ops): Likewise.
2128 (add_stmt_operand): Likewise.
2129 (add_virtual_operand): Likewise.
2130 (build_ssa_operands): Likewise.
2131
21322006-03-01 Andrew Pinski <pinskia@physics.uc.edu>
2133
2134 PR middle-end/26022
2135 Revert:
2136 PR middle-end/24437
2137 * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
2138 with a call expr to ...
2139 * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
2140
21412006-03-01 Diego Novillo <dnovillo@redhat.com>
2142
2143 * tree-vrp.c (extract_range_from_assert): Remove special
2144 handling for types with super-types.
2145
21462006-03-01 Ben Elliston <bje@au.ibm.com>
2147
2148 * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
2149 and powerpc64-*-linux* configurations.
2150 * config/t-dfprules: New file.
2151
2152 * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
2153 Compile dfp-bit.c from the source directory using -DWIDTH and
2154 $DFP_CFLAGS to control the compilation of that file, rather than
2155 generating width-specific versions in the build directory.
2156 * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
2157 (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
2158
21592006-02-28 Zack Weinberg <zackw@panix.com>
2160
2161 * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
2162 continues to work.
2163
21642006-02-28 Eric Christopher <echristo@apple.com>
2165
2166 * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
2167 Set up IN_LIBGCC definition of TARGET_64BIT.
2168 * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
2169
21702006-02-28 Roger Sayle <roger@eyesopen.com>
2171
2172 PR middle-end/14752
2173 * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
2174 BIT_XOR_EXPR, BIT_AND_EXPR>: Delete. Let fold optimize these
2175 cases via the construction of "expr != 0".
2176
21772006-02-28 Steven Bosscher <stevenb.gcc@gmail.com>
2178
2179 * alias.c (alias_invariant, alias_invariant_size): Remove.
2180 (record_base_value): Remove.
2181 (memrefs_conflict_p): Don't look at alias_invariant.
2182 (end_alias_analysis): Don't free it.
2183 * alias.h (record_base_value): Remove prototype.
2184
21852006-02-28 Paolo Bonzini <bonzini@gnu.org>
2186 Adam Nemet <anemet@caviumnetworks.com>
2187
2188 * rtl.h (truncated_to_mode): Declare it.
2189 (struct rtl_hooks): Add reg_truncated_to_mode hook.
2190 * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
2191 (RTL_HOOKS_INITIALIZER): Include it.
2192 * rtlhooks.c (reg_truncated_to_mode_general): New function.
2193 * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
2194 reg_truncated_to_mode.
2195 * rtlanal.c (truncated_to_mode): Define it.
2196 * simplify-rtx.c (simplify_unary_operation_1): Use it.
2197
21982006-02-28 Jeff Law <law@redhat.com>
2199
2200 * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
2201 conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
2202 the range allowed by TYPE_PRECISION.
2203
2204 * tree.h (strct phi_arg_d): Remove unused NONZERO field.
2205
22062006-02-28 Dorit Nuzman <dorit@il.ibm.com>
2207
2208 PR tree-optimization/26419
2209 * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
2210 values of n.
2211
22122006-02-27 Zack Weinberg <zackw@panix.com>
2213
2214 * doc/md.texi: Fix typo in previous change.
2215
22162006-02-27 Kenneth Zadeck <zadeck@naturalbridge.com>
2217
2218 * df.c: Remove.
2219
22202006-02-27 Zack Weinberg <zackw@panix.com>
2221
2222 * rtl.def (define_constraint, define_register_constraint)
2223 (define_memory_constraint, define_address_constraint): New MD forms.
2224 * gensupport.c (process_rtx): Put define_constraint etc on the
2225 predicate queue.
2226 * genpreds.c (process_define_predicate): Adjust comment. Validate
2227 the name, and call validate_exp to validate the expression.
2228 (mark_mode_tests, write_extract_subexp): Can assume correct input.
2229 (write_predicate_expr): Likewise. NAME argument no longer necessary;
2230 all callers changed.
2231 (validate_exp, needs_variable, struct constraint_data)
2232 (constraints_by_letter_table, first_constraint, last_constraint_ptr)
2233 (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
2234 (const_dbl_constraints, constraint_max_namelen)
2235 (have_register_constraints, have_memory_constraints)
2236 (have_address_constraints, have_address_constraints)
2237 (have_extra_constraints, have_const_int_constraints)
2238 (have_const_dbl_constraints, mangle, add_constraint)
2239 (process_define_constraint, process_define_register_constraint)
2240 (write_enum_constraint_num, write_lookup_constraint)
2241 (write_insn_constraint_len, write_regclass_for_constraint)
2242 (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
2243 (write_insn_extra_memory_constraint)
2244 (write_insn_extra_address_constraint)
2245 (write_satisfies_constraint_fns): New.
2246 (write_tm_preds_h): If we have new-style constraint definitions,
2247 prototype the functions generated from them, and define the
2248 old constraint interface (still used by generic code) in terms of
2249 those functions.
2250 (write_insn_preds_c): If we have new-style constraint definitions,
2251 generate all relevant functions from those definitions.
2252 (main): Handle define_constraint etc.
2253 * genoutput.c (struct constraint_data, indep_constraints)
2254 (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
2255 (mdep_constraint_len): New data structures and functions, defined
2256 #ifdef USE_MD_CONSTRAINTS.
2257 (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
2258 (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
2259 use new logic to validate operand constraints against constraint
2260 definitions.
2261 (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
2262 defined.
2263 * defaults.h: If none of the old-style constraint macros are
2264 defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
2265 old-style macros; and poison REG_CLASS_FROM_LETTER,
2266 CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
2267 EXTRA_CONSTRAINT.
2268 * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
2269 * doc/md.texi: Document new constraint-definition mechanism and the
2270 C interface it provides. Remove references to old mechanism
2271 elsewhere in the document.
2272 (Machine Constraints): Use pathnames relative to gcc directory,
2273 i.e. config/ARCH/FILE. Change i386 section to refer to
2274 config/i386/predicates.md; update that section to match docstrings.
2275 * doc/tm.texi: Move all documentation of the old constraint-
2276 definition macros to their own section, clearly mark as obsolete.
2277
2278 * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
2279 (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
2280 definitions.
2281 * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
2282 (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
2283 * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
2284 constraint strings.
2285 (splits and peepholes): Use satisfies_constraint_*.
2286 * config/i386/i386.c (memory_address_length)
2287 (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
2288
22892006-02-27 Daniel Berlin <dberlin@dberlin.org>
2290
2291 * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
2292 scalar operation to be put back into the loop.
2293
22942006-02-27 Jakub Jelinek <jakub@redhat.com>
2295
2296 PR other/26208
2297 * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
2298 (extract_cie_info): Handle S flag in augmentation string.
2299 (execute_cfa_program): If context->signal_frame, execute also
2300 fs->pc == context->ra instructions.
2301 (uw_frame_state_for): If context->signal_frame, don't subtract one
2302 from context->ra to find FDE.
2303 (uw_update_context_1): Set context->signal_frame to
2304 fs->signal_frame.
2305 (_Unwind_GetIPInfo): New function.
2306 * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
2307 * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
2308 of _Unwind_GetIP.
2309 * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
2310 * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
2311 * unwind-compat.c (_Unwind_GetIPInfo): New function.
2312 * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
2313 * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
2314 * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
2315 * config/i386/linux-unwind.h (x86_fallback_frame_state,
2316 x86_64_fallback_frame_state): Set fs->signal_frame.
2317 * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
2318 (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
2319 (frob_update_context): Likewise. Workaround missing S flag in
2320 Linux 2.6.12 - 2.6.16 kernel vDSOs.
2321 * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
2322 Remove the psw_addr + 1 hack.
2323
23242006-02-27 Daniel Berlin <dberlin@dberlin.org>
2325
2326 * tree-ssa-structalias.c (get_constraint_for): Move code to deal
2327 with aggregates here.
2328 (find_func_aliases): Remove code for &<aggregate> from here.
2329
23302006-02-26 Roger Sayle <roger@eyesopen.com>
2331
2332 * fold-const.c (fold_binary) <EQ_EXPR>: Fold (~X & C) eq/ne 0 as
2333 (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
2334 Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
2335 as (X & C) ne/eq 0.
2336
23372006-02-26 Roger Sayle <roger@eyesopen.com>
2338
2339 PR middle-end/19983
2340 * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
2341
23422006-02-26 Zdenek Dvorak <dvorakz@suse.cz>
2343
2344 * opts.c (decode_options): Do not handle flag_strength_reduce.
2345 (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
2346 and OPT_fstrength_reduce.
2347 * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
2348 flag_prefetch_loop_arrays for being nonzero.
2349 * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
2350 no-ops.
2351 (fprefetch-loop-arrays-rtl): Removed.
2352 (flag_prefetch_loop_arrays): Do not specify the value.
2353
2354 * doc/passes.texi: Update documentation of loop optimizer
2355 passes.
2356 * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
2357 -frerun-loop-opt): Remove.
2358
23592006-02-26 Richard Guenther <rguenther@suse.de>
2360
2361 PR tree-optimization/26421
2362 * tree-ssa-alias.c (find_used_portions): Don't treat parameters
2363 in function calls that are ADDR_EXPRs as using the whole structure.
2364
23652006-02-26 Steven Bosscher <stevenb.gcc@gmail.com>
2366
2367 * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
2368 * tree-pass.h (pass_loop_optimize): Remove.
2369 * passes.c (pass_loop_optimize): Never run it.
2370 * toplev.c (backend_init): Don't call init_loop.
2371 * opts.c (flag_loop_optimize_set): Remove.
2372 (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
2373 (common_handle_option) <OPT_floop_optimize>: Remove. Don't disable
2374 the old RTL loop optimizer when profiling enabled.
2375 * predict.c (tree_estimate_probability): Always strip builtin_expect.
2376 * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
2377 pre-headers for the sake of the old RTL loop optimizer.
2378 * Makefile.in: Remove all references to loop.o.
2379
2380 * doc/invoke.texi: Remove all references to -floop-optimize
2381 and -frerun-loop-opt.
2382
23832006-02-26 Zack Weinberg <zackw@panix.com>
2384
2385 * doc/md.texi (Machine Constraints): Refer to all files with paths
2386 relative to gcc directory (i.e. config/CPU/file). Add missing
2387 @table @code ... @end table to M32C subsection.
2388
23892006-02-26 Roger Sayle <roger@eyesopen.com>
2390
2391 * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
2392 (X & 1) == 0.
2393 <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
2394
23952006-02-26 Roger Sayle <roger@eyesopen.com>
2396 James A. Morrison <phython@gcc.gnu.org>
2397
2398 PR middle-end/21137
2399 * fold-const.c (fold_binary) <EQ_EXPR>: Fold ((X>>C1)&C2) eq/ne 0,
2400 when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
2401 new constant C2<<C1, or as (X<0) or (X,false) depending upon the
2402 signedness of the shift operation.
2403
24042006-02-26 Dorit Nuzman <dorit@il.ibm.com>
2405
2406 PR tree-optimization/26359
2407 * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
2408
24092006-02-25 Roger Sayle <roger@eyesopen.com>
2410
2411 * simplify-rtx.c (simplify_relational_operation_1): Simplify
2412 (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y. Simplify (X^Y) == Y
2413 as X == 0, and some symmetry related transformations.
2414 Simplify (X^C1) == C2 as X == (C1^C2). Split long comment line.
2415
24162006-02-25 Roger Sayle <roger@eyesopen.com>
2417
2418 PR middle-end/23673
2419 * fold-const.c (fold_binary) <EQ_EXPR>: Fold (X^Y) == 0 as X == Y
2420 and (X^Y) != 0 as X != Y. Fold (X^Y) == Y as X == 0, and some
2421 symmetry related transformations. Fold (X^C1) == C2 as
2422 X == (C1^C2).
2423
24242006-02-25 Juergen Weigert <jw@suse.de>
2425 Richard Guenther <rguenther@suse.de>
2426
2427 * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
2428
24292006-02-24 Adam Nemet <anemet@caviumnetworks.com>
2430
2431 * combine.c (gen_lowpart_or_truncate): Call
2432 simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
2433
24342006-02-24 Diego Novillo <dnovillo@redhat.com>
2435
2436 * doc/invoke.texi: Move -fopenmp description to "Options for
2437 Code Generation".
2438 Remove reference to -lgomp.
2439
24402006-02-24 David Edelsohn <edelsohn@gnu.org>
2441
2442 * doc/install.texi: Require GNU tar version 1.14.
2443
24442006-02-24 Geoffrey Keating <geoffk@apple.com>
2445
2446 * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
2447 * doc/invoke.texi (C++ Dialect Options): Document
2448 -fno-use-cxa-get-exception-ptr.
2449 * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
2450 * configure: Regenerate.
2451 * c.opt (fuse-cxa-get-exception-ptr): New.
2452 * c-opts.c (c_common_handle_option): Handle
2453 OPT_fuse_cxa_get_exception_ptr.
2454 * c-common.c (flag_use_cxa_atexit): Update documentation.
2455 (flag_use_cxa_get_exception_ptr): New.
2456 * c-common.h (flag_use_cxa_get_exception_ptr): New.
2457 * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
2458 documentation.
2459 (C_COMMON_OVERRIDE_OPTIONS): New.
2460
24612006-02-24 Roger Sayle <roger@eyesopen.com>
2462
2463 PR middle-end/24952
2464 * combine.c (try_combine): Explicitly check whether GET_CODE is
2465 a SET or a CLOBBER, instead on checking that it isn't a USE.
2466
24672006-02-24 Roger Sayle <roger@eyesopen.com>
2468
2469 * fold-const.c (fold_comparison): New subroutine of fold_binary
2470 containing transformations common to both the equality and
2471 ordering relational operators, factored out of fold_binary.
2472 (fold_binary): Separate out the equality operators (EQ_EXPR
2473 and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
2474 LE_EXPR and GE_EXPR), calling fold_comparison to perform the
2475 transformations common to both.
2476 (fold_div_compare): Fix latent bugs in the previously unreachable
2477 LT_EXPR and GE_EXPR cases.
2478
24792006-02-24 David Edelsohn <edelsohn@gnu.org>
2480
2481 * config/rs6000/rs6000.c (rs6000_init_builtins): Change
2482 decl libname for clog to __clog on AIX.
2483
2484 * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
2485
24862006-02-24 Alan Modra <amodra@bigpond.net.au>
2487
2488 PR target/26453
2489 * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
2490 output traceback table for thunks. Localise rs6000_stack_info call.
2491
24922006-02-23 Roger Sayle <roger@eyesopen.com>
2493 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
2494
2495 * gthr-posix.h (__gthrw): Fix typo in comment.
2496
24972006-02-23 Geoffrey Keating <geoffk@apple.com>
2498
2499 * doc/cpp.texi (Character sets): Document that we do support
2500 input files to be in any character set.
2501
25022006-02-23 Jeff Law <law@redhat.com>
2503
2504 * tree.h (PHI_ARG_NONZERO): Remove.
2505 * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
2506 (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
2507 node to the new node.
2508
2509 PR tree-optimization/26425
2510 * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
2511 min/max, then assume its varying.
2512
25132006-02-23 Zdenek Dvorak <dvorakz@suse.cz>
2514
2515 PR rtl-optimization/26316
2516 * rtlanal.c (enum may_trap_p_flags): New.
2517 (may_trap_p_1): Take flags instead of unaligned_mems argument. Ignore
2518 MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
2519 (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
2520 (may_trap_after_code_motion_p): New function.
2521 * loop-invariant.c (find_identical_invariants): Fix dump formating.
2522 (find_invariant_insn): Use may_trap_after_code_motion_p.
2523 * rtl.h (may_trap_after_code_motion_p): Declare.
2524
25252006-02-23 Zdenek Dvorak <dvorakz@suse.cz>
2526
2527 * emit-rtl.c (immed_double_const): Cleanup.
2528
25292006-02-23 Daniel Berlin <dberlin@dberlin.org>
2530
2531 Fix PR tree-optimization/26376
2532 * tree-ssa-structalias.c (find_func_aliases): Use get_id_for_tree,
2533 remove assert.
2534
25352006-02-23 Jakub Jelinek <jakub@redhat.com>
2536
2537 PR middle-end/26412
2538 * gimplify.c (omp_add_variable): Guard variable size decl test with
2539 DECL_SIZE (decl) check.
2540
25412006-02-23 Richard Guenther <rguenther@suse.de>
2542
2543 PR middle-end/26439
2544 * tree-ssa-structalias.c (find_func_aliases): Handle complex types
2545 like aggregate types.
2546
25472006-02-23 Jakub Jelinek <jakub@redhat.com>
2548
2549 * configure.ac: Add --with{,out}-long-double-128 configure option.
2550 (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
2551 * configure: Rebuilt.
2552 * config.in: Rebuilt.
2553 * doc/install.texi (Options specification): Document
2554 --with-long-double-128.
2555
2556 * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
2557 (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
2558 * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
2559 (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
2560
25612006-02-23 Aldy Hernandez <aldyh@redhat.com>
2562
2563 * config/s390/s390.c (override_options): Handle
2564 TARGET_DEFAULT_LONG_DOUBLE_128.
2565
2566 * config/alpha/alpha.c (override_options): Handle
2567 TARGET_DEFAULT_LONG_DOUBLE_128.
2568
2569 * config/sparc/sparc.c (sparc_override_options): Handle
2570 TARGET_DEFAULT_LONG_DOUBLE_128.
2571
25722006-02-22 Daniel Jacobowitz <dan@codesourcery.com>
2573
2574 * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
2575 (real-install-headers-tar, real-install-headers-cpio)
2576 (real-install-headers-cp): New targets.
2577
25782006-02-22 Richard Sandiford <richard@codesourcery.com>
2579
2580 * tree.h (variable_section): Delete.
2581 * varasm.c (variable_section): Delete.
2582
25832006-02-22 Paolo Bonzini <bonzini@gnu.org>
2584
2585 * install.texi: Add notes on install.texi2html.
2586 (Building in parallel): Do not use footnotes.
2587
25882006-02-21 Aldy Hernandez <aldyh@redhat.com>
2589
2590 PR libgomp/26234
2591 * doc/install.texi (Configuration): Document --disable-libgomp.
2592
25932006-02-21 Geoffrey Keating <geoffk@apple.com>
2594
2595 * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
2596
25972006-02-21 Alexandre Oliva <aoliva@redhat.com>
2598
2599 * config/i386/sse.md (vec_extractv2df_1_sse): New.
2600 (vec_extractv2df_0_sse): New.
2601
26022006-02-21 Alexandre Oliva <aoliva@redhat.com>
2603
2604 * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
2605 * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
2606 * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
2607 * dwarf2out.c (build_cfa_loc): New offset parameter. Add it
2608 to the result of the expression.
2609 (def_cfa_1): Adjust.
2610 (frame_pointer_cfa_offset): Rename to...
2611 (frame_pointer_fb_offset): ... this. Adjust all uses.
2612 (convert_cfa_to_loc_list): Rename to...
2613 (convert_cfa_to_fb_loc_list): ... this. New offset parameter.
2614 Pass it on to build_cfa_loc.
2615 (compute_frame_pointer_to_cfa_displacement): Rename to...
2616 (compute_frame_pointer_to_fb_displacement): ... this. New
2617 offset parameter. Use it in computation.
2618 (gen_subprogram_die): Compute cfa_fb_offset with the new
2619 macro, and use it to compute the fb loc list and the
2620 displacement.
2621
26222006-02-21 Bernd Schmidt <bernd.schmidt@analog.com>
2623
2624 * config/bfin/predicates.md (cc_operand): Delete predicate. All uses
2625 replaced with register_operand.
2626 * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
2627 non-DREG is expensive.
2628 * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
2629 * config/bfin/bfin.md (movbi): Fix constraints and template for moves
2630 involving memory.
2631
26322006-02-21 Joseph S. Myers <joseph@codesourcery.com>
2633
2634 * doc/install.texi2html: Use set -e.
2635
26362006-02-21 Richard Sandiford <richard@codesourcery.com>
2637
2638 * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
2639 (ASM_OUTPUT_SHARED_LOCAL): Delete.
2640 * doc/invoke.texi (-fshared-data): Delete.
2641 * common.opt (fshared-data): Delete.
2642 * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
2643 (assemble_static_space): Remove #if 0 code.
2644 * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
2645 (ASM_OUTPUT_SHARED_LOCAL): Poison.
2646 * config/cris/cris.h: Remove FIXME.
2647
26482006-02-21 Paolo Bonzini <bonzini@gnu.org>
2649
2650 * doc/sourcebuild.texi (Front End Directory): No more double-colon
2651 hooks.
2652
26532006-02-21 Jakub Jelinek <jakub@redhat.com>
2654
2655 PR middle-end/26379
2656 * combine.c (simplify_shift_const_1): Disable nested shifts
2657 optimization for vector shifts.
2658
26592006-02-20 Roger Sayle <roger@eyesopen.com>
2660
2661 PR tree-optimization/26361
2662 * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
2663 of unsigned integer types.
2664
26652006-02-20 Sebastian Pop <pop@cri.ensmp.fr>
2666
2667 * tree-chrec.c (eq_evolutions_p): New.
2668 * tree-chrec.h (eq_evolutions_p): Declared.
2669 * tree-data-ref.c: Fix formatting.
2670 (datadep_stats, dependence_stats): New.
2671 (gcd): Moved...
2672 (print_direction_vector): New.
2673 (dump_data_dependence_relation): Use print_direction_vector.
2674 (object_analysis, create_data_ref): Handle COMPONENT_REF.
2675 (compute_subscript_distance): Static.
2676 (initialize_data_dependence_relation): Static. Get the number
2677 of loops surrounding the references from the callers, and initialize
2678 DDR_SIZE_VECT to nb_loops. Use both base_addr_differ_p and
2679 base_object_differ_p analyzers.
2680 (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
2681 compute_overlap_steps_for_affine_1_2,
2682 analyze_subscript_affine_affine): Count the classified dependences.
2683 Print a message when a test failed.
2684 (can_use_analyze_subscript_affine_affine): New.
2685 (analyze_siv_subscript): Compute the data dependences on symbolic
2686 scevs that verify can_use_analyze_subscript_affine_affine.
2687 (chrec_steps_divide_constant_p): Returns true, false, or unknown.
2688 (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
2689 Handle symbolic scevs.
2690 (analyze_overlapping_iterations): Let symbolic affine scevs to be
2691 analyzed.
2692 (subscript_dependence_tester): Moved...
2693 (build_classic_dist_vector, build_classic_dir_vector): Don't use
2694 lambda_vector_clear on newly allocated vectors. Get nb_loops from
2695 DDR_SIZE_VECT instead of getting it in parameter.
2696 (subscript_dependence_tester): ... here. Take as a parameter
2697 loop_nest_depth. Call build_classic_dist_vector and
2698 build_classic_dir_vector.
2699 (compute_affine_dependence): Update subscript_dependence_tester
2700 parameters. Update datadep_stats counters. Call
2701 compute_subscript_distance.
2702 (compute_self_dependence): Save the dist and dir vectors. Call
2703 compute_subscript_distance.
2704 (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
2705 (compute_all_dependences): Reorder parameters as they were before
2706 conversion to VEC. Pass nb_loops and loop_nest_depth. Don't call
2707 compute_subscript_distance. Update the use of
2708 compute_affine_dependence and initialize_data_dependence_relation.
2709 (find_data_references_in_loop): Handle COMPONENT_REF.
2710 (compute_data_dependences_for_loop): Initialize dependence_stats.
2711 Don't call build_classic_dist_vector and build_classic_dir_vector.
2712 Update the parameters of initialize_data_dependence_relation and
2713 compute_all_dependences. Print the statistics from datadep_stats.
2714 (analyze_all_data_dependences): Static. Not used until the pass for
2715 checking the data dependences is contributed.
2716 * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
2717 DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
2718 (initialize_data_dependence_relation, compute_affine_dependence,
2719 analyze_all_data_dependences, compute_subscript_distance): Removed.
2720 (print_direction_vector): New.
2721 * lambda.h (gcd): ... here.
2722 (lambda_vector_gcd): Moved here from gcd_vector.
2723 * lambda-code.c (gcd, gcd_vector): Removed.
2724 (lambda_compute_target_space): Use lambda_vector_gcd. Fix formatting.
2725 * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
2726
27272006-02-20 Diego Novillo <dnovillo@redhat.com>
2728
2729 * ipa-type-escape.c: Tidy some comments and white space.
2730 * tree-ssa-operands.c: Likewise.
2731
27322006-02-20 Andrew Pinski <pinskia@physics.uc.edu>
2733
2734 PR tree-opt/25879
2735 * tree-pretty-print.c (debug_tree_chain): Walk the chains.
2736 (dump_decl_name): Do not walk the decl tree chains.
2737 * tree-pass.h (TDF_CHAIN): Remove.
2738
2739