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* config/vax/vax.c (split_quadword_operands): Use MEM_P()
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
2
3         * config/vax/vax.c (split_quadword_operands): Use MEM_P()
4         instead of GET_CODE() == MEM and REG_P() instead of
5         GET_CODE() == REG.
6         (print_operand_address): Likewise.
7         (vax_address_cost): Likewise.
8         (vax_rtx_costs): Likewise.
9         (vax_notice_update_cc): Likewise.
10         (vax_output_int_add): Likewise.
11         (INDEX_REGISTER_P): Likewise.
12         (BASE_REGISTER_P): Likewise.
13         (nonindexed_address_p): Likewise.
14         (vax_mode_dependent_address_p): Likewise.
15         * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
16         (PRINT_OPERAND): Likewise.
17         * config/vax/vax.md (ashlsi3): Likewise.
18         (ashlsi3): Likewise.
19         (some more unnamed insns): Likewise.
20
21 2006-03-15  Kazu Hirata  <kazu@codesourcery.com>
22
23         * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
24         iterator-style macro.
25         (mark_control_dependent_edges_necessary): Update the use of
26         EXECUTE_IF_CONTROL_DEPENDENT.
27
28 2006-03-15  J"orn Rennecke <joern.rennecke@st.com>
29
30         * config/sh/predicates.md (cache_address_operand): Special.
31         (ua_address_operand): Likewise.
32
33 2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>
34
35         * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
36         loop notes.
37         * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
38
39 2006-03-15  Andreas Schwab  <schwab@suse.de>
40
41         * gensupport.c (identify_predicable_attribute): Don't free p_false
42         when it is still in use.
43
44 2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
45
46         * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
47         the default setting here.
48
49 2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>
50
51         * tree-pass.h (pass_cfg): Remove.
52         * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
53         * passes.c (pass_cfg): Don't run it.
54
55 2006-03-14  Kazu Hirata  <kazu@codesourcery.com>
56
57         * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
58         * reg-stack.c (stack_regs_mentioned_data): Change the type to
59         VEC(char,heap) *.
60         (stack_regs_mentioned): Update the uses of
61         stack_regs_mentioned_data.  Don't access the array beyond its
62         end.
63         (reg_to_stack): Update the uses of stack_regs_mentioned_data.
64         Don't include gt-reg-stack.h.
65
66         * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
67         * system.h (UNALIGNED_WORD_ASM_OP): Poison.
68
69         * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
70
71         PR middle-end/26684
72         * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
73         STACK_REGS.
74
75 2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
76
77         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
78
79 2006-03-14  Richard Guenther  <rguenther@suse.de>
80
81         PR tree-optimization/26672
82         * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
83         SSA form.
84
85 2006-03-14  Richard Guenther  <rguenther@suse.de>
86
87         PR tree-optimization/26667
88         * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
89         node for the callees.  Always allow inlining if it will shrink
90         the function size.
91
92 2006-03-14  Richard Guenther  <rguenther@suse.de>
93
94         PR middle-end/26659
95         * builtins.c (get_pointer_alignment): Prefer alignment
96         information from decls over that from types.
97
98 2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>
99
100         PR target/26657
101         * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
102
103 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
104
105         * config/rs6000/rs6000.opt (mdlmzb): New option.
106         (msched-prolog, msched-epilog): Use Var not Mask.
107         * doc/invoke.texi (-mdlmzb): Document.
108         * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
109         MASK_SCHED_PROLOG.
110         (rs6000_override_options): Enable -mdlmzb for 405 and 440.
111         * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
112
113 2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>
114
115         PR rtl-optimization/25739
116         * bt-load.c (augment_live_range): Free tos pointer.
117
118         * gensupport.c (identify_predicable_attribute): Free
119         p_false pointer.
120         * gcov.c (create_file_names): Free name pointer.
121
122 2006-03-13  Roger Sayle  <roger@eyesopen.com>
123
124         PR middle-end/26557
125         * stmt.c (emit_case_nodes): Handle the case where the index is a
126         CONST_INT, where the comparison mode is specified by the index type.
127
128 2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
129
130         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
131         is defined.
132
133 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
134
135         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
136         (*branch_fp_inverted): Likewise.
137
138 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
139
140         PR middle-end/25989
141         * omp-low.c (expand_omp_for_generic): Mark istart0
142         and iend0 as addressable.
143
144 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
145
146         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
147
148 2006-03-13  Jeff Law  <law@redhat.com>
149
150         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
151         virtual operands are interesting.
152         (vrp_visit_stmt): Corresponding changes.
153
154 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
155
156         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
157         of RETS.
158         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
159         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
160         * config/bfin/crti.S: Use it instead of __PIC__.
161         * config/bfin/crtn.S: Likewise.
162
163         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
164         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
165         not if flag_pic.
166         Lose 'G' modifier for call operand.
167         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
168         recognize 'G' modifier.
169
170 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
171
172         PR middle-end/18859
173         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
174         * stmt.c (expand_case): Likewise.
175
176 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
177
178         PR rtl-optimization/26254
179         * loop-invariant.c (seq_insns_valid_p): New function.
180         (move_invariant_reg): Only emit new code if it is valid.
181
182 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
183
184         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
185         Removed.
186         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
187         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
188         (commit_one_edge_insertion): Do not look for loop notes.
189
190 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
191
192         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
193         flag_test_coverage out of loop.
194
195 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
196
197         * final.c (shorten_branches): Remove outdated comment, and turn
198         the if branch that guards it to continue.
199
200 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
201
202         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
203         * cfgloop.h (struct loop): Remove unused fields.
204
205 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
206
207         * doc/invoke.texi (-fdump-rtl-loop): Remove.
208         (-dL, -fdump-rtl-loop2): Update the dump file names 
209
210         * doc/invoke.texi: Update dump file names.
211
212 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
213
214         * predict.c (estimate_probability): Remove.
215         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
216         * basic-block.h (estimate_probability): Remove prototype.
217         * passes.c (finish_optimization_passes): Dump branch prediction or
218         profiling heuristics to the .profile tree dump.
219         (init_optimization_passes): Unqueue pass_branch_prob.
220
221         * doc/invoke.texi (-fdump-rtl-bp): Remove.
222
223 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
224
225         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
226         * rtl.h (LABEL_NEXTREF): Remove field accessor.
227
228 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
229
230         * function.h (frame_offset_overflow): Declare.
231         * function.c (frame_offset_overflow): New function.
232         (assign_stack_local_1): Call it to detect that the offset overflows.
233         * cfgexpand.c (alloc_stack_frame_space): Likewise.
234
235 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
236
237         * config/sh/sh.c: Include alloc-pool.h.
238         (label_ref_list_pool): New alloc pool.
239         (label_ref_list_t): New type for lists of labels.
240         (struct pool_node): Make wend a label_ref_list_t.
241         (add_constant): Use the new type, eradicate LABEL_NEXTREF
242         references.
243         (dump_table): Likewise.
244         (sh_reorg): Set up the alloc pool before using add_constant and
245         dump_table, and destroy it when finishing.
246
247 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
248
249         * config/mips/mips.c: Remove redundant comment.
250
251 2006-03-10  Jason Merrill  <jason@redhat.com>
252
253         PR c/26004
254         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if 
255         the target was declared 'register'.
256
257 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
258
259         * genpreds.c (write_insn_constraint_len): Change definition of
260         insn_constraint_len to return size_t to match the declaration.
261
262 2006-03-10  DJ Delorie  <dj@redhat.com>
263
264         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
265         start at zero.
266         (m32c_expand_insv): Fix test for an AND mask.
267
268 2006-03-10  Richard Guenther  <rguenther@suse.de>
269
270         PR middle-end/26565
271         * builtins.c (get_pointer_alignment): Handle component
272         references for field alignment.
273
274 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
275
276         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
277         when building with libgloss.
278         (sh*elf): Implement --without-fp option.
279         (sh64-superh-linux*): Don't multilib. 
280
281 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
282
283         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
284
285 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
286
287         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
288         Set it when one of the replacement functions returned true.
289         Return TODO_cleanup_cfg if cfgchanged is true.
290         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
291
292 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
293
294         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
295         instead of gen_lowpart.
296
297 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
298
299         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
300         interface.
301         (mips_output_order_conditional_branch): Declare.
302         * config/mips/mips.h (MIPS_BRANCH): New macro.
303         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
304         for the comparison.  Use gen_condjump.
305         (mips_output_conditional_branch): Rework interface to take the
306         asm templates for a direct branch and the inverse of a direct branch.
307         (mips_output_order_conditional_branch): New function.
308         (mips_builtin_branch_and_move): New function.
309         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
310         branch condition.  Use gen_single_cc as the condition for
311         __builtin_mips_upper_* or __builtin_mips_lower_*.
312         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
313         Use VOIDmode for the branch condition.
314         * config/mips/predicates.md (order_operator): New predicate.
315         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
316         (branch_fp): Rename to...
317         (*branch_fp): ...this.  Remove mode from comparison operator.
318         Use new mips_output_conditional_branch interface.
319         (branch_fp_inverted): Rename to...
320         (*branch_fp_inverted): ...this and update as for *branch_fp.
321         (*branch_zero<mode>): Rename to...
322         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
323         Use mips_output_order_conditional_branch.  Only accept ordered
324         comparisons.  
325         (*branch_zero<mode>_inverted): Rename to...
326         (*branch_order<mode>_inverted): ...this and update as for
327         *branch_order<mode>.
328         (*branch_equality<mode>): Accept zero as the second operand to
329         the equality operator.  Use the new mips_output_conditional_branch
330         interface.
331         (*branch_equality<mode>_inverted): Likewise.
332         (condjump): New expander.
333         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
334         operator.
335         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
336         (bc1any2t, bc1any2f): Likewise.
337         (single_cc): New expander.
338         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
339
340 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
341
342         * doc/md.texi: Update documentation of MIPS constraints.
343         * config/mips/constraints.md: New file.
344         * config/mips/mips.md: Include it.
345         * config/mips/mips.c (mips_char_to_class): Delete.
346         (override_options): Don't initialize mips_char_to_class.
347         * config/mips/mips.h (mips_char_to_class): Delete.
348         (REG_CLASS_FROM_LETTER): Delete.
349         (CONST_OK_FOR_LETTER_P): Delete.
350         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
351         (EXTRA_CONSTRAINT_Y): Delete.
352         (EXTRA_CONSTRAINT_STR): Delete.
353         (CONSTRAINT_LEN): Delete.
354         (EXTRA_MEMORY_CONSTRAINT): Delete.
355
356 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
357
358         * tree-cfg.c (move_block_to_fn): Remove the statements from the
359         original fn's eh regions.
360
361 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
362
363         * fold-const.c (build_range_check): Make sure to use a valid type to
364         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
365         transformation.
366
367         (range_predecessor): New static function.
368         (range_successor): Likewise.
369         (merge_ranges): Use them to compute predecessors and successors of
370         range bounds.
371
372 2006-03-09  Roger Sayle  <roger@eyesopen.com>
373
374         PR middle-end/26561
375         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
376         X op C3, consider whether C3 overflows towards +Inf or -Inf.
377
378 2006-03-08  DJ Delorie  <dj@redhat.com>
379
380         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
381         (addpsi3): Expand to include memory operands.  Remove
382         reload-specific splits.
383         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
384         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
385         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
386         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
387         (shift1_qi, shift1_hi, insv): New.
388         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
389         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
390         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
391         cond_to_int): New.
392         * config/m32c/m32c-protos.h: Update as needed.
393         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
394         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
395         Fail for unrecognized R* constraints.
396         (m32c_cannot_change_mode_class): Be more picky about pseudos.
397         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
398         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
399         Add Sp constraint.
400         (m32c_init_libfuncs): New.
401         (m32c_legitimate_address_p): Add debug wrapper.
402         (m32c_rtx_costs): New.
403         (m32c_address_cost): New.
404         (conversions): Add 'B' prefix.
405         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
406         operands, or word regnames for QI operands.  'B' prints bit
407         position.
408         (m32c_expand_setmemhi): New.
409         (m32c_expand_movmemhi): New.
410         (m32c_expand_movstr): New.
411         (m32c_expand_cmpstr): New.
412         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
413         (m32c_expand_neg_mulpsi3): Handle non-ints.
414         (m32c_cmp_flg_0): New.
415         (m32c_expand_movcc): New.
416         (m32c_expand_insv): New.
417         (m32c_scc_pattern): New.
418         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
419         a0/a1 out of SIregs.
420         (STORE_FLAG_VALUE): New.
421         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
422         code macros.
423         (no_insn): New.
424         * config/m32c/mov.md: Make constraints more liberal.
425         (zero_extendqihi2): Optimize r0/r1 case.
426         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
427         * config/m32c/predicates.md (m32c_any_operand): New.
428         (m32c_nonimmediate_operand): New.
429         (m32c_hl_operand): New.
430         (m32c_r3_operand): New.
431         (ap_operand): New.
432         (ma_operand): New.
433         (memsym_operand): New.
434         (memimmed_operand): New.
435         (a_qi_operand): New.
436         (m32c_eqne_operator): New.
437         (m32c_1bit8_operand): New.
438         (m32c_1bit16_operand): New.
439         (m32c_1mask8_operand): New.
440         (m32c_1mask16_operand): New.
441         * config/m32c/blkmov.md: New file.
442         * config/m32c/t-m32c (MD_FILES): Add blkmov.
443
444 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
445
446         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
447         unsigned to fix signed/unsigned comparison issue in
448         DWARF2_FRAME_REG_OUT.
449         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
450         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
451
452         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
453         of ptr into the ENABLE_CHECKING section.
454
455 2006-03-08  Jeff Law  <law@redhat.com>
456
457         * tree-vrp.c (infer_value_range): Only count pointer uses
458         and dereferences if -fdelete-null-pointer-checks is enabled.
459
460         * tree-vrp.c (find_assert_locations): Infer value ranges for
461         single use pointers, but do not create ASSERT_EXPRs for them.
462         When a non-null range is inferred for a pointer, backwards
463         propagate that range to other equivalent pointers through the
464         use-def chain.
465
466 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
467
468         PR bootstrap/26500
469         * Makefile.in (dvi, html, install-info): Invoke the corresponding
470         language hook targets.
471         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
472         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
473         if language hook targets were missing.
474
475 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
476
477         * tree-ssa-opfinalize.h: Removed.
478         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
479         dependency.
480         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
481         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
482         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
483         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
484         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
485         finalize_ssa_v_must_def_ops): New.
486
487 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
488
489         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
490         block as parameter.
491
492 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
493
494         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
495
496         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
497         addresses with offsets; reorganize.
498
499         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
500         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
501         (expand_builtin_init_dwarf_reg_sizes): Likewise.
502
503 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
504
505         PR target/26588
506         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
507
508 2006-03-08  Ben Elliston  <bje@au.ibm.com>
509
510         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
511
512 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
513
514         PR gomp/26238
515         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
516         expansion.
517
518 2006-03-07  Richard Guenther  <rguenther@suse.de>
519
520         PR tree-optimization/26587
521         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
522
523 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
524
525         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
526
527 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
528
529         * hooks.c (hook_bool_mode_rtx_true): New function.
530         * hooks.h (hook_bool_mode_rtx_true): Declare.
531         * toplev.c (compile_file): Call output_shared_constant_pool.
532         * varasm.c (shared_constant_pool): New variable.
533         (assemble_start_function, assemble_end_function): Remove arguments
534         from call to output_constant_pool.
535         (create_constant_pool): New function, split out from...
536         (init_varasm_status): ...here.
537         (force_const_mem): Choose between the shared and per-function constant
538         pools.  Set current_function_uses_const_pool when reusing old entries
539         as well as when creating new ones.
540         (mark_constant): Ignore data argument.
541         (mark_constants): Remove pool argument.
542         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
543         to decide whether the function uses a constant pool.
544         (output_constant_pool_contents): New function, split out from...
545         (output_constant_pool): ...here.
546         (output_shared_constant_pool): New function.
547         (init_varasm_once): Initialize shared_constant_pool.
548         * output.h (output_constant_pool): Delete.
549         (output_shared_constant_pool): Declare.
550         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
551         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
552
553 2006-03-06  Nick Clifton  <nickc@redhat.com>
554
555         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
556         flag_strength_reduce.
557
558 2006-03-06  Ben Elliston  <bje@au.ibm.com>
559
560         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
561         x86_64-*-linux* configurations.
562
563         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
564         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
565
566 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
567
568         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
569         Remove.
570         * basic-block.h: Remove the extern for
571         rediscover_loops_after_threading.
572
573         * cfgloop.c (cancel_loop): Make it static.
574         * cfgloop.h: Remove the prototype for cancel_loop.
575
576         * flow.c (recompute_reg_usage): Make it static.
577         * rtl.h: Remove the prototype for recompute_reg_usage.
578
579         * function.c (use_return_register): Make it static.
580         * function.h: Remove the prototype.
581
582 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
583
584         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
585         Remove.
586         * recog.h: Remove the prototype for
587         validate_change_maybe_volatile.
588
589 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
590
591         * rtlanal.c (replace_reg): Remove.
592         * rtl.h: Remove the prototype for replace_reg.
593
594 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
595
596         * regclass.c (reg_scan_update): Remove.
597         (reg_scan_mark_refs): Remove the last argument.
598         * rtl.h: Remove the prototype for reg_scan_update.
599
600 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
601
602         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
603         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
604         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
605         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
606         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
607         loop-invariant.c, omp-low.c, opts.c, passes.c,
608         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
609         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
610         tree-ssa-structalias.c, tree-ssa-threadedge.c,
611         tree-ssa-threadupdate.c, tree-vect-patterns.c,
612         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
613         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
614
615 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
616
617         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
618         * dwarf2out.h: Remove the prototype for
619         dwarf2out_add_library_unit_info.
620
621 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
622
623         * tree.c (add_var_to_bind_expr): Remove.
624         * tree.h: Remove the prototype for add_var_to_bind_expr.
625
626 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
627
628         * regclass.c (n_non_fixed_regs): Remove.
629         (init_reg_sets_1, globalize_reg): Remove all uses of
630         n_non_fixed_regs.
631         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
632
633 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
634
635         * rtlanal.c (insns_safe_to_move_p): Remove.
636         * rtl.h: Remove the prototype for insns_safe_to_move_p.
637
638 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
639
640         * expmed.c (expand_mult_add): Remove.
641         * expr.h: Remove the prototype for expand_mult_add.
642
643 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
644
645         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
646         and REG_SAVED_VAL_EXP constants.
647         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
648         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
649         Handle regs stored by value.
650         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
651         (execute_cfa_program): Handle DW_CFA_val_offset,
652         DW_CFA_val_offset_sf and DW_CFA_val_expression.
653         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
654         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
655         (uw_install_context_1): Handle target regs stored by value.
656
657 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
658
659         * tree-sra.c (tree_sra): Return todoflags;
660         (generate_one_element): Set TODO_update_smt_usage if needed.
661         (pass_sra): Remove TODO_update_smt_usage.
662         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
663         parameter.
664         (tree_ssa_forward_propagate_single_use_vars): Return
665         TODO_update_smt_usage if we need to update SMT usage.
666         (pass_forwprop): Remove TODO_update_smt_usage.
667         
668 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
669
670         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
671         (correct_use_link): Remove reference to get_stmt_operands.
672         (update_stmt_operands): Likewise.
673         (get_modify_expr_operands): New function factored out of
674         parse_ssa_operands and get_expr_operands.
675         Try to create V_MUST_DEFs for LHS by default.
676         (get_expr_operands) <case MODIFY_EXPR>: Call
677         get_modify_expr_operands.
678         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
679         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
680         (parse_ssa_operands) <case MODIFY_EXPR>: Call
681         get_modify_expr_operands.
682
683 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
684
685         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
686         * tree-flow.h: Remove the prototype for
687         referenced_var_lookup_if_exists.
688
689 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
690
691         PR rtl-optimization/26345
692         PR target/19061
693         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
694
695 2006-03-03  Roger Sayle  <roger@eyesopen.com>
696
697         PR tree-optimization/26524
698         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
699         fold_convert to create a constant of the appropriate type.
700
701 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
702
703         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
704         SYMBOL_REF_IN_BLOCK_P.
705         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
706         of SYMBOL_FLAG_IN_BLOCK.
707         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
708         instead of SYMBOL_REF_IN_BLOCK_P.
709         * explow.c (use_anchored_address): Likewise.
710         * rtl.c (rtx_size): Likewise.
711         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
712         instead of SYMBOL_FLAG_IN_BLOCK.
713         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
714         SYMBOL_REF_IN_BLOCK_P.
715         (assemble_variable): Likewise.
716         (output_constant_def_contents): Likewise.
717         (output_constant_pool): Likewise.
718         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
719         instead of SYMBOL_FLAG_IN_BLOCK.
720         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
721         SYMBOL_REF_IN_BLOCK_P.
722         (SYMBOL_REF_BLOCK): Likewise.
723         (SYMBOL_REF_OFFSET): Likewise.
724         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
725         SYMBOL_REF_IN_BLOCK_P.
726         (SYMBOL_FLAG_IN_BLOCK): Replace with...
727         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
728         (SYMBOL_REF_IN_BLOCK_P): Replace with...
729         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
730
731 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
732
733         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
734
735 2006-03-02  Roger Sayle  <roger@eyesopen.com>
736
737         * simplify-rtx.c (simplify_unary_operation): When simplifying
738         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
739         that we perform the right shift in the appropriate mode, and
740         then extend or truncate the result to requested mode.
741
742 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
743
744         * gengtype.c (main): Handle double_int type.
745         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
746         * double-int.c: New file.
747         * double-int.h: New file.
748         * system.h: Include doubleint.h.
749         * Makefile.in (SYSTEM_H): Include double-int.h.
750         (double-int.o): Add.
751
752 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
753
754         PR bootstrap/26478
755         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
756         copying over it.
757
758 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
759
760         * tree-vrp.c (remove_range_assertions): Do not update statements
761         unnecessarily.
762
763 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
764
765         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
766         cleanup.
767         * gcse.c (rest_of_handle_gcse): Ditto.
768         * except.c (gate_handle_eh): Ditto.
769         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
770         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
771
772 2006-03-02  Eric Christopher  <echristo@apple.com>
773
774         * config/i386/i386.c (machopic_output_stub): Add indirection to
775         jump.
776
777 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
778
779         * loop.c: Removed.
780
781 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
782
783         Sun Niagara specific optimizations.
784         * config.gcc: Recognize niagara as target.
785         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
786         (TARGET_CPU_niagara): Define.
787         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
788         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
789         (CPP_CPU_SPEC): Handle -mcpu=niagara.
790         (ASM_CPU_SPEC): Likewise.
791         (PROCESSOR_NIAGARA): New enum entry.
792         (REGISTER_MOVE_COST): Handle Niagara.
793         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
794         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
795         (sparc_override_options): Recognize "niagara", set appropriate
796         default MASK_* values for it, and align functions to 32-bytes
797         by default just like ULTRASPARC/ULTRASPARC3.
798         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
799         (sparc64_initialize_trampoline): Likewise.
800         (sparc_use_sched_lookahead): Use zero for niagara.
801         (sparc_issue_rate): Use one for niagara.
802         * config/sparc/niagara.md: New file.
803         * config/sparc/sparc.md: Include it.
804         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
805         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
806         when default cpu is niagara.
807         (CPP_CPU_SPEC): Handle -mcpu=niagara.
808         (ASM_CPU_SPEC): Likewise.
809         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
810         when default cpu is niagara.
811         (ASM_CPU_SPEC): Handle -mcpu=niagara.
812         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
813         just like v9/ultrasparc/ultrasparc3.
814         * doc/invoke.texi: Add documentation for "niagara" and improve
815         existing documentation for ultrasparc variants.
816
817 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
818
819         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
820
821 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
822
823         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
824         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
825         and say that only one is needed.
826         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
827         * target.h (have_switchable_bss_sections): New hook.
828         * explow.c (use_anchored_address): Check that the symbol is in a block.
829         * varasm.c (tls_comm_section, comm_section, lcomm_section)
830         (bss_noswitch_section): New variables.
831         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
832         (get_noswitch_section): New function.
833         (get_block_for_section): Allow SECT to be null.
834         (unlikely_text_section_p): Use SECTION_STYLE.
835         (bss_initializer_p): New function.
836         (get_variable_section): Move earlier in file.  Take a new argument,
837         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
838         Return one of the new *_sections in such cases.
839         (get_block_for_decl): New function, extracting some logic from
840         use_blocks_for_decl_p.
841         (change_symbol_section): Remove in favor of...
842         (change_symbol_block): ...this new function.
843         (use_blocks_for_decl_p): Remove checks now performed by
844         get_block_for_decl.
845         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
846         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
847         (emit_local, emit_bss, emit_common): ...these new functions.
848         Return true if the alignment was honored.
849         (emit_tls_common): New function.
850         (asm_emit_uninitialised): Delete.
851         (assemble_variable_noswitch): New function, split out from...
852         (assemble_variable): ...here.  Don't make decisions about common
853         variables here.  Globalize all public decls that go into non-common
854         sections.  Check whether SYMBOL_REF_BLOCK is null.
855         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
856         (output_constant_pool): Likewise.
857         (init_varasm_once): Initialize the new section variables.
858         (have_global_bss_p): New function.
859         (categorize_decl_for_section): Use bss_initializer_p.
860         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
861         (place_block_symbol): Assert that the symbol must be in a block.
862         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
863         (TARGET_INITIALIZER): Include it.
864         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
865         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
866         (SECTION_MACH_DEP): Bump by two.
867         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
868         (unnamed_section): Mention SECTION_UNNAMED in comment.
869         (named_section): Likewise SECTION_NAMED.
870         (noswitch_section_callback): New type.
871         (noswitch_section): New structure.
872         (section): Add a noswitch_section alternative.
873         (SECTION_STYLE): New macro.
874         (tls_comm_section, comm_section, lcomm_section): Declare.
875         (bss_noswitch_section, have_global_bss_p): Declare.
876         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
877         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
878         Override.
879         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
880         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
881         Override.
882
883 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
884
885         * gcc/tree-vrp.c (execute_vrp): Return value.
886         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
887         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
888         * gcc/tree-complex.c (tree_lower_complex): Ditto.
889         (tree_lower_complex_O0): Ditto.
890         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
891         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
892         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
893         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
894         (execute_tail_calls): Ditto.
895         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
896         * gcc/tree.h (init_function_for_compilation): Ditto.
897         * gcc/ipa-cp.c (ipcp_driver): Ditto.
898         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
899         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
900         * gcc/final.c (compute_alignments): Ditto.
901         (rest_of_handle_final): Ditto.
902         (rest_of_handle_shorten_branches): Ditto.
903         (rest_of_clean_state): Ditto.
904         * gcc/omp-low.c (execute_expand_omp): Ditto.
905         (execute_lower_omp): Ditto.
906         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
907         * gcc/ipa-reference.c (static_execute): Ditto.
908         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
909         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
910         (rest_of_handle_machine_reorg): Ditto.
911         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
912         * gcc/flow.c (recompute_reg_usage): Ditto.
913         (rest_of_handle_remove_death_notes): Ditto.
914         (rest_of_handle_life): Ditto.
915         (rest_of_handle_flow2): Ditto.
916         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
917         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
918         (do_ssa_store_ccp): Ditto.
919         (execute_fold_all_builtins): Ditto.
920         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
921         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
922         * gcc/ipa-pure-const.c (static_execute): Ditto.
923         * gcc/cse.c (rest_of_handle_cse): Ditto.
924         (rest_of_handle_cse2): Ditto.
925         * gcc/web.c (rest_of_handle_web): Ditto.
926         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
927         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
928         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
929         * gcc/tree-nrv.c (tree_nrv): Ditto.
930         (execute_return_slot_opt): Ditto.
931         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
932         (create_structure_vars): Ditto.
933         * gcc/loop-init.c (rtl_loop_init): Ditto.
934         (rtl_loop_done): Ditto.
935         (rtl_move_loop_invariants): Ditto.
936         (rtl_unswitch): Ditto.
937         (rtl_unroll_and_peel_loops): Ditto.
938         (rtl_doloop): Ditto.
939         * gcc/gimple-low.c (lower_function_body): Ditto.
940         (mark_used_blocks): Ditto.
941         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
942         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
943         (cgraph_early_inlining): Ditto.
944         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
945         * gcc/jump.c (cleanup_barriers): Ditto.
946         (purge_line_number_notes): Ditto.
947         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
948         (rest_of_handle_if_after_reload): Ditto.
949         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
950         (tree_ssa_loop_im): Ditto.
951         (tree_ssa_loop_unswitch): Ditto.
952         (tree_vectorize): Ditto.
953         (tree_linear_transform): Ditto.
954         (tree_ssa_loop_ivcanon): Ditto.
955         (tree_ssa_empty_loop): Ditto.
956         (tree_ssa_loop_bounds): Ditto.
957         (tree_complete_unroll): Ditto.
958         (tree_ssa_loop_prefetch): Ditto.
959         (tree_ssa_loop_ivopts): Ditto.
960         (tree_ssa_loop_done): Ditto.
961         * gcc/predict.c (tree_estimate_probability): Ditto.
962         * gcc/recog.c (split_all_insns_noflow): Ditto.
963         (rest_of_handle_peephole2): Ditto.
964         (rest_of_handle_split_all_insns): Ditto.
965         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
966         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
967         (rest_of_handle_stack_adjustments): Ditto.
968         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
969         * gcc/function.c (instantiate_virtual_regs): Ditto.
970         (init_function_for_compilation): Ditto.
971         (rest_of_handle_check_leaf_regs): Ditto.
972         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
973         (rest_of_handle_gcse): Ditto.
974         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
975         * gcc/alias.c (rest_of_handle_cfg): Ditto.
976         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
977         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
978         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
979         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
980         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
981         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
982         * gcc/except.c (set_nothrow_function_flags): Ditto.
983         (convert_to_eh_region_ranges): Ditto.
984         (rest_of_handle_eh): Ditto.
985         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
986         (remove_unnecessary_notes): Ditto.
987         * gcc/except.h (set_nothrow_function_flags): Ditto.
988         (convert_to_eh_region_ranges): Ditto.
989         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
990         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
991         * gcc/tree-ssa-pre.c (do_pre): Ditto.
992         (execute_fre): Ditto.
993         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
994         (rest_of_handle_jump2): Ditto.
995         * gcc/tree-sra.c (tree_sra): Ditto.
996         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
997         (execute_mudflap_function_decls): Ditto.
998         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
999         (do_store_copy_prop): Ditto.
1000         * gcc/ipa-prop.h (ipcp_driver): Ditto.
1001         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
1002         * gcc/tree-ssa-forwprop.c
1003         (tree_ssa_forward_propagate_single_use_vars): Ditto.
1004         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
1005         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
1006         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
1007         (execute_late_warn_uninitialized): Ditto.
1008         * gcc/rtl.h (cleanup_barriers): Ditto.
1009         (split_all_insns_noflow): Ditto.
1010         (purge_line_number_notes): Ditto.
1011         (unshare_all_rtl): Ditto.
1012         (remove_unnecessary_notes): Ditto.
1013         (recompute_reg_usage): Ditto.
1014         (variable_tracking_main): Ditto.
1015         * gcc/integrate.c (emit_initial_value_sets): Ditto.
1016         * gcc/integrate.h (emit_initial_value_sets): Ditto.
1017         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
1018         (execute_free_cfg_annotations): Ditto.
1019         (execute_fixup_cfg): Ditto.
1020         (execute_cleanup_cfg_pre_ipa): Ditto.
1021         (execute_cleanup_cfg_post_optimizing): Ditto.
1022         (execute_init_datastructures): Ditto.
1023         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
1024         * gcc/combine.c (rest_of_handle_combine): Ditto.
1025         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
1026         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
1027         (rest_of_handle_reorder_blocks): Ditto.
1028         (rest_of_handle_partition_blocks): Ditto.
1029         * gcc/var-tracking.c (variable_tracking_main): Ditto.
1030         * gcc/tree-profile.c (tree_profiling): Ditto.
1031         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
1032         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
1033         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
1034         (rest_of_handle_sched2): Ditto.
1035         * gcc/basic-block.h (free_bb_insn): Ditto.
1036         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
1037         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
1038         (remove_useless_stmts): Ditto.
1039         (split_critical_edges): Ditto.
1040         (execute_warn_function_return): Ditto.
1041         (execute_warn_function_noreturn): Ditto.
1042         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
1043         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
1044         * gcc/passes.c (execute_one_pass): Run additional
1045         todos returned by execute function.
1046         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
1047         return a value.
1048
1049 2006-03-02  Richard Guenther  <rguenther@suse.de>
1050
1051         * tree-ssa-alias.c (find_used_portions): Consider taking
1052         the address as making the variable not write-only.
1053
1054 2006-03-02  Nick Clifton  <nickc@redhat.com>
1055
1056         * config.gcc (default_use_cxa_atexit): Extend the description of
1057         this configure variable.  Set its default value to "yes" for
1058         Linux, NetBSD and ELF targets on the assumption that they will
1059         use C libraries with the __cxa_atexit function.
1060
1061 2006-03-02  Ben Elliston  <bje@au.ibm.com>
1062
1063         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
1064         parameter as unused to suppress a build warning.
1065
1066 2006-03-02  Ben Elliston  <bje@au.ibm.com>
1067
1068         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
1069         config/dfp-bit.c.
1070
1071 2006-03-01  Roger Sayle  <roger@eyesopen.com>
1072
1073         PR other/26489
1074         * gthr-posix.h (__gthrw2): Define to take three parameters, the
1075         declared name, the weak reference name, and the typeof name.
1076         (__gthrw): Avoid expanding the declared name suffix.
1077         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
1078
1079 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
1080
1081         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
1082         from DWARF 3.
1083         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
1084         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
1085         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
1086         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
1087         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
1088         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
1089         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
1090         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
1091         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
1092         DW_DS_leading_separate, DW_DS_trailing_separate): New.
1093         (DW_END_default, DW_END_big, DW_END_little): New.
1094         (DW_END_lo_user, DW_END_hi_user): Define.
1095         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
1096         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
1097         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
1098         DW_LANG_D): New.
1099
1100 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
1101
1102         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
1103         Update all users.
1104         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
1105         Update all users.
1106         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
1107         Update all users.
1108         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
1109         Update all users.
1110         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
1111         to 'symbol_mem_tag'.
1112         Update all users.
1113         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
1114         rename.
1115
1116 2006-03-01  Roger Sayle  <roger@eyesopen.com>
1117
1118         * builtins.c (fold_builtin_copysign): Delete unreachable code.
1119
1120 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
1121
1122         PR target/25761
1123         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
1124         MACHO_DYNAMIC_NO_PIC_P.
1125         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
1126
1127 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
1128
1129         PR target/26389
1130         * config/darwin-protos.h (darwin_asm_output_anchor):
1131         Declare.
1132         * config/darwin-sections.def (cstring_section):
1133         Add SECTION_MERGE to the flags.
1134         (literal4_section): Likewise.
1135         (literal8_section): Likewise.
1136         (objc_selector_refs_section): Likewise.
1137         (objc_cls_refs_section): Likewise.
1138         * config/darwin.c (darwin_asm_output_anchor): New
1139         function.
1140         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1141
1142 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
1143
1144         Fix PR tree-optimization/26443
1145         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
1146         to todo and PROP_tmt_usage to properties_destroyed.
1147         * tree-ssa-ccp.c (pass_ccp): Ditto.
1148         (pass_store_ccp): Ditto.
1149         * tree-ssa-dom.c (pass_dominator): Ditto.
1150
1151 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
1152
1153         * tree-ssa-operands.c: Cleanup whitespace.
1154         (get_asm_expr_operands): Move before first invocation.
1155         (get_indirect_ref_operands): Likewise.
1156         (get_tmr_operands): Likewise.
1157         (get_call_expr_operands): Likewise.
1158         (append_def): Likewise.
1159         (append_use): Likewise.
1160         (append_v_may_def): Likewise.
1161         (append_v_must_def): Likewise.
1162         (add_call_clobber_ops): Likewise.
1163         (add_call_read_ops): Likewise.
1164         (add_stmt_operand): Likewise.
1165         (add_virtual_operand): Likewise.
1166         (build_ssa_operands): Likewise.
1167
1168 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
1169
1170         PR middle-end/26022
1171         Revert:
1172         PR middle-end/24437
1173         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
1174         with a call expr to ...
1175         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
1176
1177 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
1178
1179         * tree-vrp.c (extract_range_from_assert): Remove special
1180         handling for types with super-types.
1181
1182 2006-03-01  Ben Elliston  <bje@au.ibm.com>
1183
1184         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
1185         and powerpc64-*-linux* configurations.
1186         * config/t-dfprules: New file.
1187
1188         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
1189         Compile dfp-bit.c from the source directory using -DWIDTH and
1190         $DFP_CFLAGS to control the compilation of that file, rather than
1191         generating width-specific versions in the build directory.
1192         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
1193         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
1194
1195 2006-02-28  Zack Weinberg  <zackw@panix.com>
1196
1197         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
1198         continues to work.
1199
1200 2006-02-28  Eric Christopher  <echristo@apple.com>
1201
1202         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
1203         Set up IN_LIBGCC definition of TARGET_64BIT.
1204         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
1205
1206 2006-02-28  Roger Sayle  <roger@eyesopen.com>
1207
1208         PR middle-end/14752
1209         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
1210         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
1211         cases via the construction of "expr != 0".
1212
1213 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
1214
1215         * alias.c (alias_invariant, alias_invariant_size): Remove.
1216         (record_base_value): Remove.
1217         (memrefs_conflict_p): Don't look at alias_invariant.
1218         (end_alias_analysis): Don't free it.
1219         * alias.h (record_base_value): Remove prototype.
1220
1221 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
1222             Adam Nemet  <anemet@caviumnetworks.com>
1223
1224         * rtl.h (truncated_to_mode): Declare it.
1225         (struct rtl_hooks): Add reg_truncated_to_mode hook.
1226         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
1227         (RTL_HOOKS_INITIALIZER): Include it.
1228         * rtlhooks.c (reg_truncated_to_mode_general): New function.
1229         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
1230         reg_truncated_to_mode.
1231         * rtlanal.c (truncated_to_mode): Define it.
1232         * simplify-rtx.c (simplify_unary_operation_1): Use it.
1233
1234 2006-02-28  Jeff Law  <law@redhat.com>
1235
1236         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
1237         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
1238         the range allowed by TYPE_PRECISION.
1239
1240         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
1241
1242 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
1243
1244         PR tree-optimization/26419
1245         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
1246         values of n.
1247
1248 2006-02-27  Zack Weinberg  <zackw@panix.com>
1249
1250         * doc/md.texi: Fix typo in previous change.
1251
1252 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
1253
1254         * df.c: Remove.
1255
1256 2006-02-27  Zack Weinberg  <zackw@panix.com>
1257
1258         * rtl.def (define_constraint, define_register_constraint)
1259         (define_memory_constraint, define_address_constraint): New MD forms.
1260         * gensupport.c (process_rtx): Put define_constraint etc on the
1261         predicate queue.
1262         * genpreds.c (process_define_predicate): Adjust comment.  Validate
1263         the name, and call validate_exp to validate the expression.
1264         (mark_mode_tests, write_extract_subexp): Can assume correct input.
1265         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
1266         all callers changed.
1267         (validate_exp, needs_variable, struct constraint_data)
1268         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
1269         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
1270         (const_dbl_constraints, constraint_max_namelen)
1271         (have_register_constraints, have_memory_constraints)
1272         (have_address_constraints, have_address_constraints)
1273         (have_extra_constraints, have_const_int_constraints)
1274         (have_const_dbl_constraints, mangle, add_constraint)
1275         (process_define_constraint, process_define_register_constraint)
1276         (write_enum_constraint_num, write_lookup_constraint)
1277         (write_insn_constraint_len, write_regclass_for_constraint)
1278         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
1279         (write_insn_extra_memory_constraint)
1280         (write_insn_extra_address_constraint)
1281         (write_satisfies_constraint_fns): New.
1282         (write_tm_preds_h): If we have new-style constraint definitions,
1283         prototype the functions generated from them, and define the
1284         old constraint interface (still used by generic code) in terms of
1285         those functions.
1286         (write_insn_preds_c): If we have new-style constraint definitions,
1287         generate all relevant functions from those definitions.
1288         (main): Handle define_constraint etc.
1289         * genoutput.c (struct constraint_data, indep_constraints)
1290         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
1291         (mdep_constraint_len): New data structures and functions, defined
1292         #ifdef USE_MD_CONSTRAINTS.
1293         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
1294         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
1295         use new logic to validate operand constraints against constraint
1296         definitions.
1297         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
1298         defined.
1299         * defaults.h: If none of the old-style constraint macros are
1300         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
1301         old-style macros; and poison REG_CLASS_FROM_LETTER,
1302         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
1303         EXTRA_CONSTRAINT.
1304         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
1305         * doc/md.texi: Document new constraint-definition mechanism and the
1306         C interface it provides.  Remove references to old mechanism
1307         elsewhere in the document.
1308         (Machine Constraints): Use pathnames relative to gcc directory,
1309         i.e. config/ARCH/FILE.  Change i386 section to refer to
1310         config/i386/predicates.md; update that section to match docstrings.
1311         * doc/tm.texi: Move all documentation of the old constraint-
1312         definition macros to their own section, clearly mark as obsolete.
1313
1314         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
1315         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
1316         definitions.
1317         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
1318         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
1319         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
1320         constraint strings.
1321         (splits and peepholes): Use satisfies_constraint_*.
1322         * config/i386/i386.c (memory_address_length)
1323         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
1324
1325 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1326
1327         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
1328         scalar operation to be put back into the loop.
1329
1330 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
1331
1332         PR other/26208
1333         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
1334         (extract_cie_info): Handle S flag in augmentation string.
1335         (execute_cfa_program): If context->signal_frame, execute also
1336         fs->pc == context->ra instructions.
1337         (uw_frame_state_for): If context->signal_frame, don't subtract one
1338         from context->ra to find FDE.
1339         (uw_update_context_1): Set context->signal_frame to
1340         fs->signal_frame.
1341         (_Unwind_GetIPInfo): New function.
1342         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
1343         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
1344         of _Unwind_GetIP.
1345         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
1346         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
1347         * unwind-compat.c (_Unwind_GetIPInfo): New function.
1348         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
1349         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
1350         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
1351         * config/i386/linux-unwind.h (x86_fallback_frame_state,
1352         x86_64_fallback_frame_state): Set fs->signal_frame.
1353         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
1354         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
1355         (frob_update_context): Likewise.  Workaround missing S flag in
1356         Linux 2.6.12 - 2.6.16 kernel vDSOs.
1357         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
1358         Remove the psw_addr + 1 hack.
1359
1360 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1361
1362         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
1363         with aggregates here.
1364         (find_func_aliases): Remove code for &<aggregate> from here.
1365
1366 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1367
1368         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
1369         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
1370         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
1371         as (X & C) ne/eq 0.
1372
1373 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1374
1375         PR middle-end/19983
1376         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
1377
1378 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
1379
1380         * opts.c (decode_options): Do not handle flag_strength_reduce.
1381         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
1382         and OPT_fstrength_reduce.
1383         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
1384         flag_prefetch_loop_arrays for being nonzero.
1385         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
1386         no-ops.
1387         (fprefetch-loop-arrays-rtl): Removed.
1388         (flag_prefetch_loop_arrays): Do not specify the value.
1389
1390         * doc/passes.texi: Update documentation of loop optimizer
1391         passes.
1392         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
1393         -frerun-loop-opt): Remove.
1394
1395 2006-02-26  Richard Guenther  <rguenther@suse.de>
1396
1397         PR tree-optimization/26421
1398         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
1399         in function calls that are ADDR_EXPRs as using the whole structure.
1400
1401 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
1402
1403         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
1404         * tree-pass.h (pass_loop_optimize): Remove.
1405         * passes.c (pass_loop_optimize): Never run it.
1406         * toplev.c (backend_init): Don't call init_loop.
1407         * opts.c (flag_loop_optimize_set): Remove.
1408         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
1409         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
1410         the old RTL loop optimizer when profiling enabled.
1411         * predict.c (tree_estimate_probability): Always strip builtin_expect.
1412         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
1413         pre-headers for the sake of the old RTL loop optimizer.
1414         * Makefile.in: Remove all references to loop.o.
1415
1416         * doc/invoke.texi: Remove all references to -floop-optimize
1417         and -frerun-loop-opt.
1418
1419 2006-02-26  Zack Weinberg  <zackw@panix.com>
1420
1421         * doc/md.texi (Machine Constraints): Refer to all files with paths
1422         relative to gcc directory (i.e. config/CPU/file).  Add missing
1423         @table @code ... @end table to M32C subsection.
1424
1425 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1426
1427         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
1428         (X & 1) == 0.
1429         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
1430
1431 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1432             James A. Morrison  <phython@gcc.gnu.org>
1433
1434         PR middle-end/21137
1435         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
1436         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
1437         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
1438         signedness of the shift operation.
1439
1440 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
1441
1442         PR tree-optimization/26359
1443         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
1444
1445 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1446
1447         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
1448         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
1449         as X == 0, and some symmetry related transformations.
1450         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
1451
1452 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1453
1454         PR middle-end/23673
1455         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
1456         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
1457         symmetry related transformations.  Fold (X^C1) == C2 as
1458         X == (C1^C2).
1459
1460 2006-02-25  Juergen Weigert  <jw@suse.de>
1461         Richard Guenther  <rguenther@suse.de>
1462
1463         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
1464
1465 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
1466
1467         * combine.c (gen_lowpart_or_truncate): Call
1468         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
1469
1470 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
1471
1472         * doc/invoke.texi: Move -fopenmp description to "Options for
1473         Code Generation".
1474         Remove reference to -lgomp.
1475
1476 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1477
1478         * doc/install.texi: Require GNU tar version 1.14.
1479
1480 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
1481
1482         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
1483         * doc/invoke.texi (C++ Dialect Options): Document
1484         -fno-use-cxa-get-exception-ptr.
1485         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
1486         * configure: Regenerate.
1487         * c.opt (fuse-cxa-get-exception-ptr): New.
1488         * c-opts.c (c_common_handle_option): Handle
1489         OPT_fuse_cxa_get_exception_ptr.
1490         * c-common.c (flag_use_cxa_atexit): Update documentation.
1491         (flag_use_cxa_get_exception_ptr): New.
1492         * c-common.h (flag_use_cxa_get_exception_ptr): New.
1493         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
1494         documentation.
1495         (C_COMMON_OVERRIDE_OPTIONS): New.
1496
1497 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1498
1499         PR middle-end/24952
1500         * combine.c (try_combine): Explicitly check whether GET_CODE is
1501         a SET or a CLOBBER, instead on checking that it isn't a USE.
1502
1503 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1504
1505         * fold-const.c (fold_comparison): New subroutine of fold_binary
1506         containing transformations common to both the equality and
1507         ordering relational operators, factored out of fold_binary.
1508         (fold_binary): Separate out the equality operators (EQ_EXPR
1509         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1510         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1511         transformations common to both.
1512         (fold_div_compare): Fix latent bugs in the previously unreachable
1513         LT_EXPR and GE_EXPR cases.
1514
1515 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1516
1517         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1518         decl libname for clog to __clog on AIX.
1519
1520         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1521
1522 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1523
1524         PR target/26453
1525         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1526         output traceback table for thunks.  Localise rs6000_stack_info call.
1527
1528 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1529             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1530
1531         * gthr-posix.h (__gthrw): Fix typo in comment.
1532
1533 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1534
1535         * doc/cpp.texi (Character sets): Document that we do support
1536         input files to be in any character set.
1537
1538 2006-02-23  Jeff Law  <law@redhat.com>
1539
1540         * tree.h (PHI_ARG_NONZERO): Remove.
1541         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1542         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1543         node to the new node.
1544
1545         PR tree-optimization/26425
1546         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1547         min/max, then assume its varying.
1548
1549 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1550
1551         PR rtl-optimization/26316
1552         * rtlanal.c (enum may_trap_p_flags): New.
1553         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1554         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1555         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1556         (may_trap_after_code_motion_p): New function.
1557         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1558         (find_invariant_insn): Use may_trap_after_code_motion_p.
1559         * rtl.h (may_trap_after_code_motion_p): Declare.
1560
1561 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1562
1563         * emit-rtl.c (immed_double_const): Cleanup.
1564
1565 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1566
1567         Fix PR tree-optimization/26376
1568         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1569         remove assert.
1570
1571 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1572
1573         PR middle-end/26412
1574         * gimplify.c (omp_add_variable): Guard variable size decl test with
1575         DECL_SIZE (decl) check.
1576
1577 2006-02-23  Richard Guenther  <rguenther@suse.de>
1578
1579         PR middle-end/26439
1580         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1581         like aggregate types.
1582
1583 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1584
1585         * configure.ac: Add --with{,out}-long-double-128 configure option.
1586         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1587         * configure: Rebuilt.
1588         * config.in: Rebuilt.
1589         * doc/install.texi (Options specification): Document
1590         --with-long-double-128.
1591
1592         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1593         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1594         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1595         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1596
1597 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1598
1599         * config/s390/s390.c (override_options): Handle
1600         TARGET_DEFAULT_LONG_DOUBLE_128.
1601
1602         * config/alpha/alpha.c (override_options): Handle
1603         TARGET_DEFAULT_LONG_DOUBLE_128.
1604
1605         * config/sparc/sparc.c (sparc_override_options): Handle
1606         TARGET_DEFAULT_LONG_DOUBLE_128.
1607
1608 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1609
1610         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1611         (real-install-headers-tar, real-install-headers-cpio)
1612         (real-install-headers-cp): New targets.
1613
1614 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1615
1616         * tree.h (variable_section): Delete.
1617         * varasm.c (variable_section): Delete.
1618
1619 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1620
1621         * install.texi: Add notes on install.texi2html.
1622         (Building in parallel): Do not use footnotes.
1623
1624 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1625
1626         PR libgomp/26234
1627         * doc/install.texi (Configuration): Document --disable-libgomp.
1628
1629 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1630
1631         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1632
1633 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1634
1635         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1636         (vec_extractv2df_0_sse): New.
1637
1638 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1639
1640         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1641         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1642         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1643         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1644         to the result of the expression.
1645         (def_cfa_1): Adjust.
1646         (frame_pointer_cfa_offset): Rename to...
1647         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1648         (convert_cfa_to_loc_list): Rename to...
1649         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1650         Pass it on to build_cfa_loc.
1651         (compute_frame_pointer_to_cfa_displacement): Rename to...
1652         (compute_frame_pointer_to_fb_displacement): ... this.  New
1653         offset parameter.  Use it in computation.
1654         (gen_subprogram_die): Compute cfa_fb_offset with the new
1655         macro, and use it to compute the fb loc list and the
1656         displacement.
1657
1658 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1659
1660         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1661         replaced with register_operand.
1662         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1663         non-DREG is expensive.
1664         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1665         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1666         involving memory.
1667
1668 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1669
1670         * doc/install.texi2html: Use set -e.
1671
1672 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1673
1674         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1675         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1676         * doc/invoke.texi (-fshared-data): Delete.
1677         * common.opt (fshared-data): Delete.
1678         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1679         (assemble_static_space): Remove #if 0 code.
1680         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1681         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1682         * config/cris/cris.h: Remove FIXME.
1683
1684 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1685
1686         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1687         hooks.
1688
1689 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1690
1691         PR middle-end/26379
1692         * combine.c (simplify_shift_const_1): Disable nested shifts
1693         optimization for vector shifts.
1694
1695 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1696
1697         PR tree-optimization/26361
1698         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1699         of unsigned integer types.
1700
1701 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1702
1703         * tree-chrec.c (eq_evolutions_p): New.
1704         * tree-chrec.h (eq_evolutions_p): Declared.
1705         * tree-data-ref.c: Fix formatting.
1706         (datadep_stats, dependence_stats): New.
1707         (gcd): Moved...
1708         (print_direction_vector): New.
1709         (dump_data_dependence_relation): Use print_direction_vector.
1710         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1711         (compute_subscript_distance): Static.
1712         (initialize_data_dependence_relation): Static.  Get the number
1713         of loops surrounding the references from the callers, and initialize
1714         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1715         base_object_differ_p analyzers.
1716         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1717         compute_overlap_steps_for_affine_1_2,
1718         analyze_subscript_affine_affine): Count the classified dependences.
1719         Print a message when a test failed.
1720         (can_use_analyze_subscript_affine_affine): New.
1721         (analyze_siv_subscript): Compute the data dependences on symbolic
1722         scevs that verify can_use_analyze_subscript_affine_affine.
1723         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1724         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1725         Handle symbolic scevs.
1726         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1727         analyzed.
1728         (subscript_dependence_tester): Moved...
1729         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1730         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1731         DDR_SIZE_VECT instead of getting it in parameter.
1732         (subscript_dependence_tester): ... here.  Take as a parameter
1733         loop_nest_depth.  Call build_classic_dist_vector and
1734         build_classic_dir_vector.
1735         (compute_affine_dependence): Update subscript_dependence_tester
1736         parameters.  Update datadep_stats counters.  Call
1737         compute_subscript_distance.
1738         (compute_self_dependence): Save the dist and dir vectors.  Call
1739         compute_subscript_distance.
1740         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1741         (compute_all_dependences): Reorder parameters as they were before
1742         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1743         compute_subscript_distance.  Update the use of
1744         compute_affine_dependence and initialize_data_dependence_relation.
1745         (find_data_references_in_loop): Handle COMPONENT_REF.
1746         (compute_data_dependences_for_loop): Initialize dependence_stats.
1747         Don't call build_classic_dist_vector and build_classic_dir_vector.
1748         Update the parameters of initialize_data_dependence_relation and
1749         compute_all_dependences.  Print the statistics from datadep_stats.
1750         (analyze_all_data_dependences): Static.  Not used until the pass for
1751         checking the data dependences is contributed.
1752         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1753         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1754         (initialize_data_dependence_relation, compute_affine_dependence,
1755         analyze_all_data_dependences, compute_subscript_distance): Removed.
1756         (print_direction_vector): New.
1757         * lambda.h (gcd): ... here.
1758         (lambda_vector_gcd): Moved here from gcd_vector.
1759         * lambda-code.c (gcd, gcd_vector): Removed.
1760         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1761         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1762
1763 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1764
1765         * ipa-type-escape.c: Tidy some comments and white space.
1766         * tree-ssa-operands.c: Likewise.
1767
1768 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1769
1770         PR tree-opt/25879
1771         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1772         (dump_decl_name): Do not walk the decl tree chains.
1773         * tree-pass.h (TDF_CHAIN): Remove.
1774
1775 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1776
1777         * Makefile.in (C): Remove
1778         (PROTO): Remove
1779         (.PHONY): Remove C and PROTO
1780
1781 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1782
1783         PR middle-end/26236
1784         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1785         deprecated CHAR_TYPE tree code.
1786
1787 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1788
1789         * configure.ac (target_list): Add install-info, dvi, html.
1790         * configure: Regenerate.
1791
1792         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1793         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1794         treelang/Make-lang.in: Do not use double-colon rules.
1795
1796 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1797
1798         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1799         (TMT_USED_ALONE): New macro.
1800         * tree-pass.h (PROP_tmt_usage): New property.
1801         (TODO_update_tmt_usage): New todo.
1802         * tree-ssa-alias.c (updating_used_alone): New variable.
1803         (recalculate_used_alone): New function.
1804         (compute_may_aliases): Set updating_used_alone, call
1805         recalculate_used_alone.
1806         * tree-sra.c (pass_sra): Note that this pass destroys
1807         PROP_tmt_usage, and add TODO_update_tmt_usage.
1808         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1809         * tree-flow.h (updating_used_alone): Prototype.
1810         (recalculate_used_alone): Ditto.
1811         * passes.c (execute_todo): Add code to set updating_used_alone,
1812         and call recalculate.
1813         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1814         for clobber if used alone, and add assert to verify used_alone
1815         status.
1816
1817 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1818
1819         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1820         for non tls symbols added.
1821         (legitimize_address): Do nothing for PLUS expressions if one of the
1822         addends is a tls symbol reference.
1823
1824 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1825
1826         PR bootstrap/25476
1827
1828         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1829
1830         * Makefile.in (BOOTSTRAPPING): New.
1831         (quickstrap): New definition if BOOTSTRAPPING=yes.
1832
1833         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1834         * configure.ac: Substitute all_selected_languages with the languages
1835         that were configured.  For all the other variables except
1836         lang_specs_files, include all the languages in the tree.
1837         * configure: Regenerate.
1838
1839         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1840         if there is one.  Run the commands to run fixincludes in the same
1841         subshell.
1842
1843         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1844         * doc/install.texi: Document exact conventions for searching target tools.
1845         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1846         something more about building an Ada cross-compiler.  Don't list GNU Make
1847         requirements which affect all platforms.
1848
1849 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1850
1851         PR middle-end/19543
1852         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1853         only equivalent if the have both the same mode and precision.
1854
1855 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1856
1857         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1858
1859 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1860             Steven Bosscher  <stevenb.gcc@gmail.com>
1861
1862         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1863         constant pool references to identify stack mode constants.
1864         * rtlanal.c (constant_pool_constant_p): New predicate to check
1865         whether operand is a floating point constant in the pool.
1866         * rtl.h (constant_pool_constant_p): Prototype here.
1867         * loop.c (scan_loop): Avoid hoisting constants from the constant
1868         pool on STACK_REGS targets.
1869         (load_mems): Likewise.
1870         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1871         loads into x87 registers expensive in terms of register pressure.
1872
1873 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1874
1875         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1876         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1877
1878 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1879
1880         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1881         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1882
1883 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1884
1885         * doc/invoke.texi: Document -fipa-pta.
1886         * common.opt: Add ipa-pta option.
1887         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1888         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1889         (do_ds_constraint): Ditto.
1890         (get_constraint_for): Only add to referenced_vars if
1891         referenced_vars exists.
1892         (insert_into_field_list): Rewrite to do this unsorted.
1893         (insert_into_field_list_sorted): Rename old insert_into_field_list
1894         to this.
1895         (create_function_info_for): Use insert_into_field_list_sorted.
1896         (create_variable_info_for): Rewrite so it uses unsorted version,
1897         since the field list is sorted.
1898         (intra_create_variable_infos): Only add to referenced_vars if
1899         referenced_vars exists.
1900         (ipa_pta_execute): Init heapvars, and delete when done.
1901         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1902
1903 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1904
1905         * doc/install.texi: Add missing `@samp'.
1906
1907 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1908
1909         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1910         Use the arguments.
1911
1912 2006-02-18  Mark Wielaard  <mark@klomp.org>
1913
1914         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1915         who added new 4.1 features, bug fixes and integration support.
1916
1917 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1918
1919         PR target/26350
1920         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1921         MEM for ABI_V4 pic.
1922
1923 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1924
1925         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1926         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1927         (copy_insn_1): Likewise.  Don't copy each field individually.
1928         Reindent.
1929         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1930         of RTX_SIZE.
1931         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1932         * rtl.c (rtx_size): Rename variable to...
1933         (rtx_code_size): ...this.
1934         (rtx_size): New function.
1935         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1936         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1937         Reindent.
1938         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1939         * rtl.h (rtx_code_size): New variable.
1940         (rtx_size): Change from a variable to a function.
1941         (RTX_SIZE): Rename to...
1942         (RTX_CODE_SIZE): ...this.
1943
1944         PR target/9703
1945         PR tree-optimization/17106
1946         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1947         (Anchored Addresses): New section.
1948         * doc/invoke.texi (-fsection-anchors): Document.
1949         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1950         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1951         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1952         * hooks.c (hook_bool_mode_rtx_false): New function.
1953         * hooks.h (hook_bool_mode_rtx_false): Declare.
1954         * gengtype.c (create_optional_field): New function.
1955         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1956         SYMBOL_REF_IN_BLOCK_P is true.
1957         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1958         (min_anchor_offset, max_anchor_offset): Likewise.
1959         (use_anchors_for_symbol_p): New hook.
1960         * toplev.c (compile_file): Call output_object_blocks.
1961         (target_supports_section_anchors_p): New function.
1962         (process_options): Check that -fsection-anchors is only used on
1963         targets that support it and when -funit-at-a-time is in effect.
1964         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1965         if the decl doesn't have one.
1966         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1967         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1968         of force_const_mem through use_anchored_address.
1969         (expand_expr_constant): New function.
1970         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1971         calling expand_expr for INDIRECT_REF.
1972         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1973         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1974         * expr.h (use_anchored_address): Declare.
1975         * loop-unroll.c: Don't declare rtx vectors here.
1976         * explow.c: Include output.h.
1977         (validize_mem): Call use_anchored_address.
1978         (use_anchored_address): New function.
1979         * common.opt (-fsection-anchors): New switch.
1980         * varasm.c (object_block_htab, anchor_labelno): New variables.
1981         (hash_section, object_block_entry_eq, object_block_entry_hash)
1982         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1983         (use_blocks_for_decl_p, change_symbol_section): New functions.
1984         (get_variable_section): New function, split out from assemble_variable.
1985         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1986         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1987         symbol has already been created.
1988         (assemble_variable_contents): New function, split out from...
1989         (assemble_variable): ...here.  Don't output any code for
1990         block symbols; just pass them to place_block_symbol.
1991         Use get_variable_section and assemble_variable_contents.
1992         (get_constant_alignment, get_constant_section, get_constant_size): New
1993         functions, split from output_constant_def_contents.
1994         (build_constant_desc): Create a block symbol if use_object_blocks_p
1995         says so.  Or into SYMBOL_REF_FLAGS.
1996         (assemble_constant_contents): New function, split from...
1997         (output_constant_def_contents): ...here.  Don't output any code
1998         for block symbols; just pass them to place_section_symbol.
1999         Use get_constant_section and get_constant_alignment.
2000         (force_const_mem): Create a block symbol if use_object_blocks_p and
2001         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
2002         (output_constant_pool_1): Add an explicit alignment argument.
2003         Don't switch sections here.
2004         (output_constant_pool): Adjust call to output_constant_pool_1.
2005         Switch sections here instead.  Don't output anything for block symbols;
2006         just pass them to place_block_symbol.
2007         (init_varasm_once): Initialize object_block_htab.
2008         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
2009         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
2010         (place_block_symbol, get_section_anchor, output_object_block)
2011         (output_object_block_htab, output_object_blocks): New functions.
2012         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
2013         (TARGET_ASM_OUT): Include it.
2014         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
2015         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
2016         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
2017         (TARGET_INITIALIZER): Include them.
2018         * rtl.c (rtl_check_failed_block_symbol): New function.
2019         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
2020         (block_symbol, object_block): New structures.
2021         (rtx_def): Add a block_symbol field to the union.
2022         (BLOCK_SYMBOL_CHECK): New macro.
2023         (rtl_check_failed_block_symbol): Declare.
2024         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
2025         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
2026         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
2027         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
2028         * output.h (output_section_symbols): Declare.
2029         (object_block): Name structure.
2030         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
2031         (default_use_anchors_for_symbol_p): Declare.
2032         * Makefile.in (RTL_BASE_H): Add vec.h.
2033         (explow.o): Depend on output.h.
2034         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
2035         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
2036         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
2037         (rs6000_use_blocks_for_constant_p): New function.
2038
2039 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2040
2041         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
2042
2043 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
2044
2045         PR tree-opt/25680
2046         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
2047         IMAGPART_EXPR.
2048
2049 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
2050
2051         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
2052         is_aliased.
2053         Update all users.
2054
2055 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
2056
2057         PR middle-end/26334
2058         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
2059         instead of DECL_REGISTER.
2060
2061 2006-02-18  Olivier Hainque  <hainque@adacore.com>
2062
2063         PR ada/13408
2064         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
2065
2066 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
2067
2068         PR target/24837
2069         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
2070         * opth-gen.awk: Handle Var and InverseMask together.
2071         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
2072         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
2073         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
2074         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
2075         used together.
2076         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
2077         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
2078         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
2079         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
2080         LINUX_DYNAMIC_LINKER): Define.
2081         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
2082         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
2083         TARGET_GLIBC.
2084         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2085         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
2086         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2087         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2088         (TARGET_C99_FUNCTIONS): Don't define.
2089         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
2090         GLIBC_DYNAMIC_LINKER.
2091         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
2092         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
2093         GLIBC_DYNAMIC_LINKER64): Define.
2094         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
2095         LINUX_DYNAMIC_LINKER64.
2096         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2097         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2098         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
2099         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2100         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2101         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2102         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
2103         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
2104         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
2105         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
2106         and LINUX_DYNAMIC_LINKER32.
2107         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2108         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2109         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
2110         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2111         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
2112         TARGET_GLIBC.
2113         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
2114         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
2115         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
2116         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
2117         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
2118         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
2119         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
2120         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
2121         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
2122         LINUX_DYNAMIC_LINKER): Define.
2123         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
2124         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
2125         GLIBC_DYNAMIC_LINKER64): Define.
2126         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
2127         LINUX_DYNAMIC_LINKER64.
2128         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2129         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2130         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
2131         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
2132         LINUX_DYNAMIC_LINKER): Define.
2133         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2134         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
2135         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
2136         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
2137         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
2138         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
2139         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
2140         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
2141         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
2142         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2143         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2144         * doc/invoke.texi (-muclibc): Remove caveat about supported
2145         targets.
2146
2147 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
2148
2149         * doc/cpp.texi (__TIMESTAMP__): Document.
2150
2151 2006-02-17  Roger Sayle  <roger@eyesopen.com>
2152
2153         PR middle-end/25600
2154         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
2155         C is one less than the width of X (and related transformations).
2156         * simplify-rtx.c (simplify_unary_operation_1): Transform
2157         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
2158         depending on STORE_FLAG_VALUE, were C is one less then the
2159         width of X.
2160
2161 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
2162
2163         Fix PR tree-optimization/26341
2164         * tree-ssa-operands.c (add_virtual_operand): Remove assert
2165         about NAME_MEMORY_TAG's.
2166
2167 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2168
2169         PR target/26255
2170         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
2171         with hardware float support, and software float support.  Add fcpy
2172         alternative to hardware patterns.  Add alternatives to copy between
2173         general and floating-point registers to the 32-bit pattern.
2174         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
2175         secondary reload to load a QI or HI mode constant into a floating
2176         point register.
2177         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
2178         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
2179
2180 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
2181
2182         PR target/26272
2183         * config/rs6000/darwin.md (load_macho_picbase_si): Add
2184         pc to the pattern.
2185         (load_macho_picbase_di): Likewise.
2186
2187 2006-02-16  Jeff Law  <law@redhat.com>
2188
2189         * tree-vrp.c (set_value_range_to_nonnegative): New function.
2190         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
2191         (ssa_name_nonzero_p): Likewise.
2192         (get_value_range): Return NULL if VRP is not running.
2193         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
2194         VRP routines do not discover a range.
2195         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
2196         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
2197         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
2198         (tree_expr_nonnegative_p): Similarly.
2199         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
2200         (restore_nonzero_vars_to_original_value): Remove.
2201         (unsafe_associative_fp_binop): Remove.
2202         (tree_ssa_dominator_optimize): Remove initialization and
2203         finalization of nonzero_vars and nonzero_vars_stack.
2204         (dom_opt_initialize_block): No longer push marker on
2205         nonzero_vars_stack.
2206         (dom_opt_finalize_block): No longer call
2207         restore_nonzero_vars_to_original_value.
2208         (record_equivalences_from_phis): No longer look for
2209         nonzero PHI arguments.
2210         (cprop_into_successor_phis): No longer propagate nonzero
2211         property into PHI arguments.  Lose unused argument.  Caller
2212         updated.
2213         (record_equivalences_from_stmt): No longer record nonzero
2214         values for SSA_NAMEs.
2215         (lookup_avail_expr): No longer use nonzero_vars.
2216
2217         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
2218         for sizetype when sizetype is unsigned.
2219
2220 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
2221
2222         PR rtl-optimization/25603
2223         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
2224         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
2225         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
2226         with new meaning of SETS.
2227
2228 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
2229
2230         PR target/20353
2231         PR target/24578
2232         PR target/24837
2233         * config/linux.opt: New file.
2234         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
2235         LINUX_DYNAMIC_LINKER): Define.
2236         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
2237         * config.gcc (*-*-linux*): Define extra_options.
2238         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
2239         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
2240         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
2241         GLIBC_DYNAMIC_LINKER.
2242         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
2243         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2244         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2245         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2246         * doc/invoke.texi (GNU/Linux Options): New section.
2247
2248 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
2249
2250         * config/sparc/sparc.md (setjmp): Rewrite.
2251         (setjmp_32): Delete.
2252         (setjmp_64): Likewise.
2253
2254 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
2255
2256         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
2257          previous change.
2258
2259 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2260
2261         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
2262         read-write uses.
2263
2264 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2265
2266         PR rtl-optimization/26296
2267         * Makefile.in (loop-invariant.c): Add except.h dependency.
2268         * loop-invariant.c: Include except.h.
2269         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
2270
2271 2005-02-16  Paul Brook  <paul@codesourcery.com>
2272
2273         * reload1.c (emit_reload_insns): Invalidate dead input registers used
2274         for reloads.
2275
2276 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
2277
2278         PR rtl-optimization/25636
2279         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
2280         when deciding whether an insn is an initializing insn.
2281
2282 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
2283
2284         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
2285         (tree_code_size): Ditto.
2286         * tree.h (struct tree_memory_tag): Remove parent_var.
2287         (struct tree_struct_field_tag): New.
2288         (SFT_OFFSET): New.
2289         (SFT_SIZE): New.
2290         (union tree_node): Add sft member.
2291         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
2292         specially here.
2293         (create_sft): Add size and offset argument, set SFT_OFFSET and
2294         SFT_SIZE.
2295         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
2296         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
2297         * tree-flow-inline.h (get_subvar_at): Update for
2298         SFT_OFFSET/SFT_SIZE.
2299         (var_can_have_subvars): Ditto.
2300         (overlap_subvar): Ditto.
2301         * print-tree.c (print_node): Print out interesting things for
2302         SFT's.
2303         * tree-flow.h (struct subvar): Remove offset and size members.
2304         * tree-ssa-operands.c (get_expr_operands): Update for
2305         get_indirect_ref_operands changes.
2306         (get_indirect_ref_operands): Call add_virtual_operand instead of
2307         add_stmt_operand.  Only recurse on base var if requested.
2308         (access_can_touch_variable): New function.
2309         (add_stmt_operand): Split virtual operand handling into ...
2310         (add_virtual_operand): Here.  Add offset, size, and for_clobber
2311         arguments.  Prune alias sets.
2312         (add_call_clobber_ops): Call add_virtual_operand.
2313
2314 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
2315
2316         PR middle-end/26300
2317         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
2318
2319         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
2320         than TREE_CODE as index into omp_clause_num_ops array.
2321
2322 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
2323
2324         PR rtl-optimization/26184
2325         * modulo-sched.c (generate_reg_moves): Free bitmap vector
2326         uses_of_defs.
2327         * modulo-sched.c (sms_schedule): Free g_arr pointer.
2328         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
2329         must_precede, must_follow and tobe_scheduled.
2330
2331         PR other/26147
2332         * opts.c (common_handle_option): Free new_option pointer.
2333         * df-core.c (df_analyze): Free postorder pointer.
2334
2335 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
2336
2337         * Makefile.in: Fix the examples about the use of stamps
2338
2339 2006-02-15  Michael Matz  <matz@suse.de>
2340
2341         PR middle-end/22275
2342
2343         * stor-layout.c (layout_decl): Zero-width bitfields aren't
2344         influenced by maximum_field_alignment or DECL_PACKED.
2345         (update_alignment_for_field): Ditto.
2346         (place_field): Ditto.
2347         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
2348         this behaviour.
2349
2350 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
2351
2352         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
2353         (debug_flow_info): Pass it.
2354         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
2355         * bb-reorder.c (reorder_basic_blocks): Likewise.
2356         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
2357         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
2358         * flow.c (life_analysis, recompute_reg_usage): Likewise.
2359         * gcse.c (gcse_main, bypass_jumps): Likewise.
2360         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
2361         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
2362         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
2363         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
2364         * rtl.h (dump_flow_info): Adjust prototype.
2365         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
2366         * var-tracking.c (variable_tracking_main): Likewise.
2367         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
2368         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
2369         options.
2370
2371 2006-02-15  Marcin Dalecki <martin@dalecki.de>
2372
2373         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
2374         construction.
2375
2376 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2377
2378         PR tree-optimization/26209
2379         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
2380         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
2381         eh edges.
2382         * tree-cfg.c (replace_uses_by): Do not alter cfg.
2383
2384 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2385
2386         PR middle-end/23670
2387         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
2388         (X,Y) and the corresponding symmetry related transformations.
2389         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
2390         (X,Y) and its symmetry related transformations.
2391
2392 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2393
2394         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
2395         and GEU.
2396
2397 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
2398
2399         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
2400
2401 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
2402
2403         PR bootstrap/26053
2404         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
2405         support COMDAT group.
2406         * configure: Regenerate.
2407
2408 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2409
2410         PR middle-end/26279
2411         PR middle-end/26280
2412         PR middle-end/26283
2413         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
2414
2415 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
2416
2417         Fix PR tree-optimization/26260
2418
2419         * doc/invoke.texi (max-fields-for-field-sensitive): Document
2420         param.
2421         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
2422         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
2423         * tree-ssa-structalias.c (create_variable_info_for): Use
2424         MAX_FIELDS_FOR_FIELD_SENSITIVE.
2425
2426 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2427
2428         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
2429         Document.
2430         * tree-ssa-loop-niter.c (number_of_iterations_ne,
2431         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
2432         of the ending condition.
2433         * tree-ssa-loop-manip.c: Include params.h.
2434         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
2435         tree_unroll_loop): New functions.
2436         * tree-pass.h (pass_loop_prefetch): Declare.
2437         * loop.c (rest_of_handle_loop_optimize): Test for
2438         -fprefetch-loop-arrays-rtl.
2439         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
2440         * timevar.def (TV_TREE_PREFETCH): New timevar.
2441         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
2442         pass_loop_prefetch): New.
2443         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
2444         (cleanup_tree_cfg_loop): Call scev_reset.
2445         * common.opt (fprefetch-loop-arrays-rtl): Add.
2446         * tree-ssa-loop-prefetch.c: New file.
2447         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
2448         (new_temp_expr_table): Initialize expr_vars.
2449         (free_temp_expr_table): Cleanup expr_vars.
2450         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
2451         expressions from being merged into one.
2452         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
2453         (struct tree_niter_desc): Add control, bound and cmp fields.
2454         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
2455         Declare.
2456         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
2457         (tree-cfgcleanup.o): Add SCEV_H dependency.
2458         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
2459         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
2460
2461 2006-02-14  Richard Guenther  <rguenther@suse.de>
2462
2463         PR tree-optimization/26258
2464         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
2465         in PHI argument processing.
2466
2467 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
2468
2469         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
2470         new expression in the requested machine mode.
2471
2472 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2473
2474         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
2475         directly, instead let do_compare_rtx_and_jump handle this for us.
2476         * expr.c (expand_expr_real_1): Likewise.
2477         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
2478         before do_jump_by_parts_greater.
2479         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
2480         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
2481
2482 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2483
2484         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
2485
2486 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2487
2488         PR rtl-optimization/26235
2489         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
2490         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
2491         format.
2492
2493 2006-02-13  Jeff Law  <law@redhat.com>
2494
2495         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2496         TRUTH_XOR_EPR.
2497
2498 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2499
2500         PR middle-end/26092
2501         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2502         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2503         first to verify it is still a builtin.
2504
2505 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2506
2507         * dwarf2out.c (base_type_die): Don't add AT_name here.
2508         (subrange_type_die): Don't add AT_name here.
2509         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2510
2511 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2512
2513         PR rtl-optimization/26247
2514         PR rtl-optimization/26248
2515         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2516
2517 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2518
2519         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2520         * config/fixtfdi.c: Likewise.
2521         * config/fixunstfdi.c: Likewise.
2522         * config/floatditf.c: Likewise.
2523
2524 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2525
2526         PR middle-end/24427
2527         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2528         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2529         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2530         (X&(C1&~C2))|C2.
2531         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2532
2533 2006-02-13  Josh Conner  <jconner@apple.com>
2534
2535         PR target/25376
2536         * varasm.c (function_section): Check for section name before
2537         calling select_section on targets that define
2538         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2539         unlikely_text_section instead of hot_function_section if
2540         first_function_block_is_cold.
2541
2542 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2543
2544         PR middle-end/25335
2545         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2546
2547 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2548
2549         PR rtl-optimization/26222
2550         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2551         after tree->rtl expansion.
2552         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2553         before passing it to emit_move_insn.
2554
2555 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2556
2557         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2558         default.
2559         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2560         Clarify documentation.
2561         * c-common.h (warn_write_strings): Remove.
2562         * c-common.c (warn_write_strings): Likewise.
2563         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2564         default for C++.
2565
2566 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2567
2568         PR middle-end/25724
2569         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2570         (do_jump_parts_zero_rtx): New function renamed from
2571         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2572         (do_jump_parts_equality_rtx): New function split out from
2573         do_jump_parts_equality.  Old implementation renamed as above.
2574         Call do_jump_parts_zero_rtx if either operand is zero.
2575         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2576         do all of the heavy lifting.
2577         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2578         calling either do_jump_by_parts_greater_rtx or
2579         do_jump_by_parts_equality_rtx.
2580         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2581         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2582         moved to do_compare_rtx_and_jump, call it directly.
2583         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2584         mode argument.  Call do_compare_rtx_and_jump.
2585         (emit_case_nodes): Update calls to do_jump_if_equal.
2586
2587 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2588
2589         PR rtl-optimization/26225
2590         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2591
2592 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2593
2594         PR rtl-optimization/26232
2595         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2596
2597 2006-02-11  Jason Merrill  <jason@redhat.com>
2598
2599         PR tree-opt/24365
2600         * tree-inline.c (declare_return_variable): Just don't use the
2601         modify target if it's a gimple complex reg and the return slot
2602         isn't.
2603
2604 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2605
2606         * doc/contrib.texi: Update my entry.
2607
2608 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2609
2610         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2611
2612 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2613
2614         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2615         expensive.
2616
2617 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2618
2619         * doc/invoke.texi (-floop-optimize2): Removed.
2620         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2621         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2622         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2623         * common.opt (floop-optimize2): Removed.
2624         (fmove-loop-invariants): Enabled by default.
2625
2626 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2627
2628         * tree-if-conv.c (combine_blocks): Free the result of
2629         get_loop_exit_edges.
2630
2631 2006-02-10  Jeff Law  <law@redhat.com>
2632
2633         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2634
2635         PR tree-optimization/26213
2636         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2637         loop trying to follow SSA_NAME_VALUE chains.
2638
2639 2006-02-10  Richard Guenther  <rguenther@suse.de>
2640
2641         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2642         deal with structures that end in implicitly variable sized arrays.
2643
2644 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2645
2646         PR rtl-optimization/24762
2647         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2648         eh edges.
2649
2650 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2651
2652         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2653         (struct ivopts_data): Add regs_used field.
2654         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2655         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2656         instead of loop_data->regs_used;
2657         (free_loop_data): Do not free aux fields for loops.
2658         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2659         and tree_ssa_iv_optimize_finalize.
2660
2661 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2662
2663         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2664
2665 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2666
2667         PR target/26141
2668         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2669         computing the effective result type.
2670
2671 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2672
2673         PR inline-asm/16194
2674         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2675         (tree_overlaps_hard_reg_set): Declare.
2676         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2677         type and signature to match function type expected by walk_tree.
2678         (tree_overlaps_hard_reg_set): New function.
2679         (decl_conflicts_with_clobbers_p): Rename to:
2680         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2681         Use tree_overlaps_hard_reg_set.  Changed caller.
2682         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2683         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2684         * cris.c (cris_md_asm_clobbers): Likewise.
2685
2686 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2687
2688         * reload1.c (emit_input_reload_insns): Delete code that tries to
2689         inherit using find_equiv_reg.
2690
2691 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2692
2693         * c-common.h (flag_const_strings): Don't declare.
2694         * c-common.c (flag_const_strings): Remove.
2695         * c.opt (fconst_strings): Remove.
2696         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2697         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2698         (c_common_init_options): Don't set flag_const_strings.
2699         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2700
2701 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2702
2703         * arm.md (tlobits_cbranch): New pattern.
2704         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2705         testing a single bit.
2706
2707 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2708
2709         PR tree-opt/26179
2710         * tree-ssa-pre.c (create_component_ref_by_pieces):
2711         Handle RETURN_DECL like VAR_DECL.
2712
2713 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2714
2715         PR middle-end/26134
2716         * fold-const.c (fold_indirect_ref_1): Fold
2717         "*(foo *)&complexfoo" to "__real__ complexfoo"
2718         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2719
2720 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2721
2722         * tree-flow-inline.h (var_can_have_subvars):
2723         Volatile variables should not have subvariables.
2724
2725 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2726
2727         PR 26180
2728         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2729         multiplying unsigned values.
2730         Tidy comments.
2731
2732 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2733
2734         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2735
2736 2006-02-08  Jason Merrill  <jason@redhat.com>
2737
2738         PR c++/25979
2739         * tree.def: Elaborate on difference from MODIFY_EXPR.
2740         * doc/c-tree.texi (INIT_EXPR): Likewise.
2741         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2742         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2743         (gimplify_target_expr): Likewise.
2744         (gimplify_cond_expr): Remove target handling.
2745         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2746         (gimplify_expr): Clobber it here.
2747         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2748         Do return slot optimization if we have an INIT_EXPR.
2749
2750         PR tree-opt/24365
2751         * tree-inline.c (declare_return_variable): Also clear
2752         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2753
2754         PR c++/16405
2755         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2756
2757         PR middle-end/22439
2758         * gimplify.c (gimplify_one_sizepos): Fix typo.
2759
2760 2006-02-08  Jeff Law  <law@redhat.com>
2761
2762         PR tree-optimization/21417
2763         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2764         across a backedge if the control statement at the end of the
2765         block is data dependent on other statements in the same block.
2766         (record_temporary_equivalences_from_stmts): Remove over-conservative
2767         test for threading across backedges.
2768
2769         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2770         control statement, handle all three special cases in the same
2771         manner as they all have the same desired solution.  No longer
2772         special case edge flag updating when the post dominator is
2773         the exit block.
2774
2775 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2776
2777         * tree.def (CHAR_TYPE): Remove.
2778         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2779         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2780         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2781         (gen_string_type_die): Delete unreachable function.
2782
2783         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2784         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2785         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2786         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2787         * builtins.c (type_to_class): Likewise.
2788         * fold-const.c (fold_convert, build_range_check,
2789         merge_ranges): Likewise.
2790         * expr.c (count_type_elements): Likewise.
2791         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2792         * stor-layout.c (layout_type): Likewise.
2793         * ipa-type-escape.c (type_to_consider): Likewise.
2794         * gimplify.c (omp_firstprivatize_type_sizes,
2795         gimplify_type_sizes): Likewise.
2796         * explow.c (promote_mode): Likewise.
2797         * tree-sra.c (is_sra_scalar_type): Likewise.
2798         * varasm.c (output_constant): Likewise.
2799         * tree-inline.c (remap_type_1): Likewise.
2800         * convert.c (convert_to_pointer, convert_to_real,
2801         convert_to_integer, convert_to_complex): Likewise.
2802
2803 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2804
2805         * df-scan.c (df_def_record_1): A set destination may
2806         be a parallel regardless of mode.
2807
2808 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2809
2810         PR target/22209
2811         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2812         * config/mips/_tilib.c: Remove.
2813         * config/fixtfdi.c: New libgcc source file.
2814         * config/fixunstfdi.c: New source file.
2815         * config/floatditf.c: New source file.
2816         * config/floatunditf.c: New souce file.
2817         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2818         files above instead of config/mips/_tilib.c.
2819         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2820
2821 2006-02-08  Jeff Law  <law@redhat.com>
2822
2823         PR tree-optimization/26169
2824         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2825         threading jumps.
2826
2827 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2828
2829         * df.h (DF_REG_SIZE): Return the length of the initialized
2830         part of the array.
2831
2832 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2833
2834         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2835         __muldf3): Return a correctly signed zero.
2836
2837 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2838
2839         * passes.c (register_one_dump_file): Accept the current properties
2840         instead of pass number.  Adjust call to dump_register.  Remove
2841         duplicated code.
2842         (register_dump_files): Now a wrapper around...
2843         (register_dump_files_1): ... this one.  Do not modify the pass
2844         structure.
2845         (next_pass_1): Cosmetic fix.
2846         (execute_todo): Keep second parameter only.  Use curr_properties
2847         instead of fetching it from the pass structure.  Check and set
2848         last_verified.
2849         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2850         instead of fetching it from the pass structure.  Fix calls to
2851         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2852         after running the pass.  Reset last_verified.
2853         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2854         at the beginning.
2855         (FIRST_AUTO_NUMBERED_DUMP): New.
2856         (dump_register): Remove "num" parameter, assign it within the
2857         function.
2858         (get_dump_file_name): Modify template for dumps.
2859         * tree-dump.h (dump_register): Adjust prototype.
2860         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2861         (PROP_trees): Add PROP_gimple_lomp.
2862         (TODO_set_props): New.
2863         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2864         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2865         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2866
2867 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2868
2869         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2870         (sparc64-*-linux*): Likewise.
2871         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2872         * config/sparc/t-linux: New file.
2873         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2874         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2875         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2876         -m32 -mlong-double-128.
2877
2878         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2879         * config/alpha/t-linux: New file.
2880         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2881
2882         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2883         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2884         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2885         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2886         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2887         (CPP_ARCH32_SPEC): Remove.
2888
2889 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2890
2891         PR tree-optimization/26145
2892         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2893         bbs pointer.
2894
2895 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2896
2897         PR target/26109
2898         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2899         >= 240000 when generating code for SOM runtime.
2900         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2901         to $$dyncall when generating code for SOM runtime..
2902
2903 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2904
2905         PR c++/18150
2906         * doc/invoke.texi (-Wsequence-point): Update documentation
2907         that -Wsequence-point is implemented for C++ as well.
2908
2909 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2910
2911         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2912         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2913         (LIB_SPEC): Likewise.
2914         * doc/invoke.texi (SPARC options): Document -pthread.
2915
2916 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2917
2918         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2919         PIC addresses.
2920
2921 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2922
2923         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2924         Correct comment describing BOOLEAN_TYPE.
2925
2926 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2927
2928         * c.opt: C++ frontend supports -Wdiv-by-zero.
2929         * c-opts.c (c_common_handle_option): Remove dead case.
2930
2931 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2932
2933         * configure.ac (TLS assembler check): Do not enable TLS by
2934         default on SPARC/Solaris before version 10.
2935         * configure: Regenerate.
2936
2937 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2938
2939         * doc/invoke.texi (xl-compat): Document conversion and support
2940         routine names.
2941
2942 2006-02-07  Jeff Law  <law@redhat.com>
2943
2944         * tree-vrp.c (find_conditional_asserts): Update comments.
2945         (simplify_stmt_for_jump_threading): New.
2946         (identify_jump_threads, finalize_jump_threads): New.
2947         (vrp_finalize): Call identify_jump_threads.
2948         (execute_vrp): Call finalize_jump_threads.
2949         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2950         (vrp_element, vrp_data, vrp_element_p): Remove.
2951         (vrp_hash_elt, vrp_variables_stack): Remove.
2952         (vrp_hash, vrp_eq, record_range): Remove.
2953         (simplify_cond_and_lookup_avail_expr): Remove.
2954         (extract_range_from_cond): Remove.
2955         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2956         (simplify_stmt_for_jump_threading): New.
2957         (dom_thread_across_edge): New wrapper.
2958         (tree_ssa_dominator_optimize): No longer initialize or
2959         finalize any of the VRP datastructures.  Remove iteration
2960         step and simplify as a result of removal of iteration step.
2961         (pass_dominator): Perform a cfg cleanup after DOM.
2962         (dom_opt_finalize_block): Use the new common routines
2963         for threading jumps.  Simplify stack management slightly.
2964         No longer need to unwind VRP state.
2965         (record_equivalences_from_incoming_edge): No longer record
2966         VRP information.
2967         (eliminate_redundant_computations): No longer call
2968         simplify_cond_and_lookup_avail_expr.
2969         * tree-flow.h (potentially_threadable_block): Prototype.
2970         (thread_across_edge): Likewise.
2971         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2972         (tree-ssa-threadedge.o): Add dependencies.
2973         * tree-ssa-threadedge.c: New file.
2974         * passes.c (init_optimization_passes): Merge PHIs before
2975         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2976
2977 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2978
2979         * df-core.c (df_set_blocks): Do not dereference function pointers.
2980         (df_finish1): Likewise.
2981         (df_hybrid_search_forward): Likewise.
2982         (df_hybrid_search_backward): Likewise.
2983         (df_iterative_dataflow): Likewise.
2984         (df_analyze_problem): Likewise.
2985         (df_compact_blocks): Likewise.
2986         (df_dump): Likewise.
2987         * df-scan.c (df_rescan_blocks): Likewise.
2988         (df_record_entry_block_defs): Likewise.
2989
2990         * genconditions.c (write_conditions): Guard the definition of
2991         'insn_conditions' with the check on GCC version.
2992         (write_writer): Guard the traversal 'insn_conditions' with
2993         the check on GCC version.
2994
2995 2006-02-07  Richard Guenther  <rguenther@suse.de>
2996
2997         PR c++/26140
2998         Revert
2999         2006-01-30  Richard Guenther  <rguenther@suse.de>
3000         PR c++/23372
3001         * gimplify.c (gimplify_target_expr): Handle easy cases
3002         without creating a temporary.
3003
3004 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
3005
3006         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
3007         use of float in probability computations.  Use edge probabilities
3008         in place of statically computed probabilities.
3009         (min_spec_prob): New static variable.
3010         (schedule_insns): Initialize it.
3011         (GET_SRC_PROB): Removed.
3012         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
3013
3014 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
3015
3016         PR debug/24444
3017         * config/ia64/unwind-ia64.c: Revert last change.
3018         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
3019         (INCOMING_FRAME_SP_OFFSET): Define.
3020
3021 2006-02-06  Roger Sayle  <roger@eyesopen.com>
3022
3023         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
3024
3025 2006-02-07  Ben Elliston  <bje@au.ibm.com>
3026
3027         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
3028         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
3029         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
3030         (ix86_return_in_memory): Handle TDmode.
3031         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
3032         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
3033
3034 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
3035
3036         * reorg.c (dbr_schedule): Use dump_file instead of file.
3037
3038 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
3039
3040         PR target/25917
3041         * config/ia64/predicates.md (extr_len_operand): New predicate.
3042         * config/ia64/ia64.md (extv): Tighten constraints.
3043         (extzv): Ditto.
3044         (*tbit_and_2): Ditto.
3045         (*tbit_and_3): Ditto.
3046         (*tbit_or_2): Ditto.
3047         (*tbit_or_3): Ditto.
3048         (*bit_zero): Ditto.
3049         (*bit_one): Ditto.
3050
3051 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
3052
3053         PR target/23359
3054         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
3055
3056 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
3057
3058         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
3059         loop_optimizer_init and loop_optimizer_finalize
3060         * tree-ssa-sink.c (execute_sink_code): Ditto.
3061         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
3062         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
3063         tree_ssa_loop_done): Ditto.
3064         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
3065         * sched-ebb.c: Include output.h.
3066         (schedule_ebbs): Do not use dump argument.
3067         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
3068         * loop.c (loop_dump_stream): Removed.
3069         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
3070         argument.
3071         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
3072         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
3073         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
3074         loop_iterations, strength_reduce, record_biv, record_giv,
3075         final_giv_value, check_final_value, check_ext_dependent_givs,
3076         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
3077         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
3078         dump_file instead of loop_dump_stream.
3079         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
3080         argument dump_file.
3081         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
3082         dump argument.
3083         * flow.c (life_analysis, rest_of_handle_life): Ditto.
3084         * haifa-sched.c: Include output.h
3085         (schedule_insns, sched_init): Do not use dump argument.
3086         * mode-switching.c (optimize_mode_switching): Ditto.
3087         * modulo-sched.c (stats_file): Removed.
3088         (print_node_sched_params): Do not call argument dump_file.
3089         (sms_schedule_by_order, loop_canon_p, sms_schedule,
3090         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
3091         of stats_file.
3092         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
3093         use dump argument.
3094         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
3095         rtl_loop_init, rtl_loop_done): Ditto.
3096         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
3097         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
3098         Ditto.
3099         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
3100         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
3101         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
3102         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
3103         * emit-rtl.c (renumber_insns): Ditto.
3104         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
3105         expand_gimple_basic_block, tree_expand_cfg): Ditto.
3106         * regclass.c (regclass): Ditto.
3107         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
3108         remove_ssa_form, rewrite_out_of_ssa): Ditto.
3109         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
3110         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
3111         Ditto.
3112         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
3113         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
3114         to regclass.
3115         * gcse.c (gcse_file, debug_stderr): Removed.
3116         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
3117         rest_of_handle_gcse): Do not use dump argument.
3118         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
3119         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
3120         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
3121         compute_code_hoist_vbeinout, compute_code_hoist_data,
3122         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
3123         compute_store_table, build_store_vectors, insert_insn_start_bb,
3124         insert_store, remove_reachable_equiv_notes, replace_store_insn,
3125         store_motion): Use dump_file instead of gcse_file.
3126         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
3127         * profile.c (profile_dump_file): Removed.
3128         (branch_prob): Use dump_file instead of profile_dump_file.
3129         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
3130         dump_file.
3131         * tree-ssa-copy.c (dump_copy_of): Ditto.
3132         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
3133         dump file to life_analysis.
3134         * bt-load.c (branch_target_load_optimize): Ditto.
3135         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
3136         renumber_insns.
3137         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
3138         regclass, dbr_schedule): Declaration changed.
3139         * sched-int.h (sched_init): Declaration changed.
3140         * tree-profile.c (tree_profile_dump_file): Removed.
3141         (tree_profile_hooks): Removed profile_dump_file hook.
3142         * rtl-profile (rtl_profile_dump_file): Removed.
3143         (rtl_profile_hooks): emoved profile_dump_file hook.
3144         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
3145         changed.
3146         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
3147         * tree-cfg.c (build_tree_cfg): Ditto.
3148         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
3149         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
3150         Declaration changed.
3151         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
3152         life_analysis and schedule_insns.
3153         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
3154         life_analysis.
3155         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
3156         dbr_schedule.
3157         * config/mips/mips.c (mips_reorg): Ditto.
3158         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
3159         schedule_ebbs.
3160
3161 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
3162
3163         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3164         (s390_mangle_fundamental_type): New.
3165         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3166         Define.
3167
3168         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3169         (alpha_mangle_fundamental_type): New.
3170         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3171         Define.
3172
3173         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3174         Define.
3175         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3176         Define.
3177         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3178         (sparc_mangle_fundamental_type): New.
3179
3180 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
3181
3182         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
3183         (s390x-*-linux*): Likewise.
3184         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
3185         * config/s390/t-linux: New file.
3186
3187 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3188
3189         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
3190         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
3191
3192 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
3193
3194         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
3195         (ANTIC_SAFE_LOADS): New macro.
3196         (find_or_generate_expression): Add prototype.
3197         (set_contains_value): Allow null set for sake of not always having
3198         to allocate ANTIC_SAFE_LOADS.
3199         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
3200         Allow COMPONENT_REF too.
3201         (valid_in_set): Allow COMPONENT_REF.
3202         Check ANTIC_SAFE_LOADS too.
3203         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
3204         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
3205         rename.
3206         (can_PRE_operation): Add COMPONENT_REF.
3207         (create_component_ref_by_pieces): New function.
3208         (create_expression_by_pieces): Use create_component_ref_by_pieces.
3209         (insert_aux): Move AGGREGATE_TYPE_P check here.
3210         (compute_avail): Set bb local stmt uids.
3211         (pass_pre): Use TODO_update_ssa_only_virtuals.
3212
3213 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3214
3215         * configure.ac: Unconditionally disable decimal float by default.
3216         * configure: Regenerate.
3217
3218 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3219
3220         * read-rtl.c (read_name): Terminate reading on EOF.
3221
3222 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3223
3224         * dfp.c (decimal_real_arithmetic): Change second argument type
3225         from int to enum tree_code. Do not always return true, but now
3226         return result of any call to decimal_do helper functions.
3227         * dfp.h (decimal_real_arithmetic): Update prototype.
3228
3229 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
3230
3231         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
3232
3233 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
3234
3235         PR tree-opt/25251
3236         * tree-cfg.c (cleanup_dead_labels): Also don't remove
3237         forced labels.
3238
3239 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3240
3241         * tree-vrp.c (cfg_loops): Removed.
3242         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
3243         Use current_loops instead of cfg_loops.  Pass flags to
3244         loop_optimizer_init.
3245         * cfgloopmanip.c (fix_loop_structure): Update only available
3246         information.
3247         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
3248         loop_optimizer_init.
3249         * modulo-sched.c (build_loops_structure): Removed.
3250         (sms_schedule): Use loop_optimizer_init.
3251         * loop-init.c (loop_optimizer_init): Use flags to determine
3252         which properties of loops to prepare.
3253         (rtl_loop_init): Pass flags to loop_optimizer_init.
3254         * tree-ssa-sink.c (execute_sink_code): Ditto.
3255         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
3256         * tree-ssa-pre.c (init_pre): Ditto.
3257         * cfgloop.h (LOOPS_NORMAL): New.
3258         (loop_optimizer_init): Declaration changed.
3259
3260 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3261
3262         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
3263         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
3264         pa/t-pa.
3265         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
3266         pa/t-pa.
3267         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
3268         pa/x-ada.
3269         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
3270         * pa/t-pa64: Delete quadlib.c rule.
3271         * pa/x-ada: Revert last change.
3272         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
3273
3274 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3275
3276         PR rtl-optimization/26087
3277         * rtlanal.c (canonicalize_condition): Do not cross basic block
3278         boundaries.
3279
3280 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
3281
3282         PR debug/24444
3283         * config/ia64/ia64.c: Include debug.h.
3284         (MAX_ARTIFICIAL_LABEL_BYTES): New.
3285         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
3286         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
3287         (process_epilogue, process_set, process_for_unwind_directive):
3288         Output unwind info only if requested.  Add CFA info if requested.
3289         Add new arguments as needed.  Adjust callers.
3290         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
3291         incorrect default.
3292         (DWARF2_FRAME_INFO): Define to zero.
3293         * config/ia64/unwind-ia64.c: Remove code that compensated for
3294         the CFA offset error fixed above.
3295         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
3296         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
3297         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
3298         -funwind-tables and -fexceptions to enable frame info.
3299         (dwarf2out_frame_init): Define initial CFA even if
3300         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
3301         DWARF2_UNWIND_INFO is nonzero, not just defined.
3302         (dwarf2out_frame_finish): Output non-EH call frame info only
3303         if DWARF2_FRAME_INFO is nonzero.
3304         (convert_cfa_to_loc_list,
3305         compute_frame_pointer_to_cfa_displacement): Define even if
3306         unwind info is not supported.
3307         (gen_subprogram_die): Use the above unconditionally.  Remove
3308         legacy alternate code.
3309         * toplev.c (compile_file): Compile in call to
3310         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
3311         (lang_dependent_init): Ditto for dwarf2out_frame_init.
3312
3313 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
3314             Jakub Jelinek  <jakub@redhat.com>
3315
3316         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
3317         IBM extended float format long double as "g" on powerpc*-linux.
3318
3319 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3320
3321         PR target/25926
3322         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
3323         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
3324
3325 2006-02-03  Jason Merrill  <jason@redhat.com>
3326
3327         PR c++/25979
3328         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
3329
3330         PR middle-end/25977
3331         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
3332         on the return slot if it's an NRV.
3333
3334 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
3335
3336         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
3337         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
3338         rewrite_use): Do not handle USE_OUTER.
3339         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
3340         add_iv_outer_candidates, may_replace_final_value,
3341         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
3342         (find_interesting_uses_op): Functionality of
3343         find_interesting_uses_outer_or_nonlin moved here.
3344         (find_interesting_uses_outside): Use find_interesting_uses_op.
3345
3346 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
3347
3348         PR target/25960
3349         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
3350
3351 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
3352             Ulrich Weigand  <uweigand@de.ibm.com>
3353
3354         PR target/25864
3355         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
3356         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
3357         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
3358         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
3359         and dxr fields.
3360         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
3361         (s390_rtx_costs): Use the new fields to calculate rtx costs.
3362         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
3363         Define secondary reloads for TFmode moves.
3364         (constant_modes): Add TFmode.
3365         (NR_C_MODES): Set to 8.
3366         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
3367         builtin define.
3368         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
3369         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
3370         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
3371         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
3372         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
3373         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
3374         (FPR mode macro): Add TFmode.
3375         (DSF mode macro): New.
3376         (<de>, <dee> mode attributes): Removed.
3377         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
3378         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
3379         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
3380         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
3381         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
3382         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
3383         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
3384         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
3385         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
3386         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
3387         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
3388         "*negabs<mode>2", "sqrt<mode>2"):
3389         Changed <de> to <xde>. R constraint replaced by <Rf>.
3390         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
3391         <Rf>.
3392         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
3393         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
3394         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
3395         splitters.
3396         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
3397         "extenddftf2", "extendsftf2"): New expanders.
3398         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
3399         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
3400         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
3401         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
3402         New options.
3403         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
3404         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
3405         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
3406         __floatditf): Add a GCC_4.1.0 symbol version tag.
3407         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
3408         the new options.
3409
3410 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
3411