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2008-01-16 Richard Guenther <rguenther@suse.de>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2008-01-16  Richard Guenther  <rguenther@suse.de>
2
3         PR tree-optimization/34769
4         * tree-data-ref.c (initialize_matrix_A): Revert fix for PR34458.
5         * tree.c (int_cst_value): Instead make this function more
6         permissive in what it accepts as valid input.  Document this
7         function always sign-extends the value.
8
9 2008-01-16  Jakub Jelinek  <jakub@redhat.com>
10         Richard Guenther  <rguenther@suse.de>
11
12         PR c/34668
13         * gimplify.c (fold_indirect_ref_rhs): Rename to ...
14         (gimple_fold_indirect_ref_rhs): ... this.
15         (gimple_fold_indirect_ref): New function with foldings
16         that preserve lvalueness.
17         (gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
18         * tree-flow.h (gimple_fold_indirect_ref): Declare.
19         * tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
20         to fold an INDIRECT_REF, fall back to the old use of
21         fold_indirect_ref_1.
22
23 2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>
24
25         * tree-data-ref.c (subscript_dependence_tester_1): Call 
26         free_conflict_function.
27         (compute_self_dependence): Same.
28
29 2008-01-16  Uros Bizjak  <ubizjak@gmail.com>
30
31         PR debug/34249
32         * debug.h (dwarf2out_switch_text_section): Move declaration from ...
33         * dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
34         function global.
35         * final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
36         Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
37         for DWARF2_UNWIND_INFO targets.
38
39 2008-01-16  Richard Guenther  <rguenther@suse.de>
40
41         PR c/34768
42         * c-typeck.c (common_pointer_type): Do not merge inconsistent
43         type qualifiers for function types.
44
45 2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
46
47         * tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
48         loop_iterator li from previous commit.
49
50 2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>
51
52         * tree-parloops.c (gen_parallel_loop): Free loop bound estimations.
53
54 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
55
56         * tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
57         (parallelize_loops): Don't parallelize irreducible components.
58
59 2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
60
61         PR c++/24924
62         * c-opts (c_common_post_options): Do not enable CPP
63         flag_pedantic_errors by default.
64         
65 2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>
66
67         PR rtl-optimization/31944
68         * cse.c (remove_pseudo_from_table): New function.
69         (merge_equiv_classes): Use above function to remove pseudo-registers.
70         (invalidate): Likewise.
71
72 2008-01-13  Richard Guenther  <rguenther@suse.de>
73
74         PR middle-end/34601
75         * emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
76         instead of TYPE_MODE to deal with calls from expand_one_error_var.
77
78 2008-01-13  Uros Bizjak  <ubizjak@gmail.com>
79
80         * gcse.c (cprop_jump): Call validate_unshare_change instead of
81         validate_change to unshare the source of the PC set.
82
83 2008-01-12  Jan Hubicka  <jh@suse.cz>
84
85         PR middle-end/32135
86         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
87         references above array bounds.  This might trigger bounds checks for
88         pointers to arrays.
89
90 2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>
91
92         * tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
93         new_replaceable_dependencies.
94
95 2008-01-12  Doug Kwan  <dougkwan@google.com>
96
97         * c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
98         instead of OPT_Wreturn_type in warning due to ignored return type
99         qualifiers.
100         * c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
101         options included in -Wextra.
102         * c.opt: New option -Wignored_qualifiers.
103         * doc/invoke.texi (Warning Options, -Wextra): Add new option
104         -Wignore_qualifiers.
105         (-Wignored-qualifiers): Document.
106         (-Wreturn-type): Remove description of functionality now handled
107         by -Wignored-qualifiers.
108
109 2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>
110
111         PR ada/33788
112         * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
113         NOP_EXPR if it is between integral types with the same precision.
114
115 2008-01-12  Jan Hubicka  <jh@suse.cz>
116
117         PR other/28023
118         * invoke.texi (max-inline-recursive-depth): Fix default value.
119
120 2008-01-12  Zdenek Dvorak  <ook@ucw.cz>
121
122         * tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
123         correct type.
124
125 2008-01-11  Bob Wilson  <bob.wilson@acm.org>
126         
127         * config/xtensa/xtensa.c (override_options): Set flag_shlib.
128         
129 2008-01-11  James E. Wilson  <wilson@specifix.com>
130
131         PR target/26015
132         * config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.
133
134 2008-01-11  Anatoly Sokolov <aesok@post.ru>
135
136         * config/avr/avr.c (expand_prologue, expand_epilogue): Don't 
137         save/restore frame pointer register and don't use 'call-prologues' 
138         optimization in function with "OS_task" attribute.
139
140 2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>
141
142         PR middle-end/31309
143         * expr.c (copy_blkmode_from_reg): Use a mode suited to the size
144         when copying to memory.
145
146 2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>
147
148         PR rtl-optimization/30905
149         * cfgcleanup.c: Include dce.h
150         (crossjumps_occured): New global variable.
151         (try_crossjump_bb): Exit loop after finding a fallthru edge.
152         If something changed, set crossjumps_occured to true.
153         (try_optimize_cfg): Clear crossjumps_occured at the beginning.
154         Don't add/remove fake edges to exit here...
155         (cleanup_cfg): ...but do it here, when crossjumping.
156         Run a fast DCE when successful crossjumps occured in the latest
157         iteration of try_optimize_cfg.
158
159 2008-01-11  Richard Guenther  <rguenther@suse.de>
160
161         * tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
162         (struct vn_unary_op_s): Likewise.
163         (vn_reference_insert): Free old reference on hash collision.
164
165 2008-01-10  Raksit Ashok  <raksit@google.com>
166
167         PR rtl-optimization/27971
168         * combine.c (find_split_point): Split PLUS expressions which are
169         inside a MEM rtx, and whose first operand is complex.
170
171 2008-01-10  DJ Delorie  <dj@redhat.com>
172
173         * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
174         (m32c_hard_regno_nregs): ...this, which is now a wrapper.
175         (m32c_hard_regno_ok): Call the underlying function.
176
177 2008-01-10  Richard Guenther  <rguenther@suse.de>
178
179         PR middle-end/34683
180         * tree-cfg.c (tree_merge_blocks): Do not go through the
181         full-blown folding and stmt updating path if we just deal
182         with virtual operands.
183         * tree-ssa-copy.c (may_propagate_copy): Do not short-cut
184         test for abnormal SSA_NAMEs.
185
186 2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>
187
188         PR middle-end/34641
189         * reload.c (push_reload): Add assertions.  All constants from
190         reg_equiv_constant should have been used for replacing the respective
191         pseudo earlier.
192         (find_reloads_address): Invoke find_reloads_address_part for
193         constant taken from the reg_equiv_constant array.
194
195 2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>
196
197         * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
198         field (valnum) the first in the struct.  Replace bools with
199         unit bit fields.
200
201 2008-01-10  Richard Guenther  <rguenther@suse.de>
202
203         PR tree-optimization/34651
204         * tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
205         types and ordering for masking and converting.
206
207 2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>
208
209         PR tree-optimization/34017
210         * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
211         also for PHI_NODE expressions.
212
213 2008-01-09  Jan Hubicka  <jh@suse.cz>
214
215         PR tree-optimization/34708
216         * tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
217         based on number of case labels.
218         (init_inline_once): Remove switch_cost.
219         * tree-inline.h (eni_weights_d): Remove switch_cost.
220
221 2008-01-09  Richard Guenther  <rguenther@suse.de>
222         Andrew Pinski  <andrew_pinski@playstation.sony.com>
223
224         PR middle-end/30132
225         * gimplify.c (gimplify_cond_expr): Do not create an addressable
226         temporary if an rvalue is ok or an lvalue is not required.
227
228 2008-01-09  Richard Guenther  <rguenther@suse.de>
229
230         PR middle-end/34458
231         * tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
232         adjust return type.
233
234 2008-01-09  Richard Guenther  <rguenther@suse.de>
235
236         PR middle-end/34679
237         * tree.c (host_integerp): Check for sizetype only if the
238         type is an integer type.
239
240 2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>
241
242         PR debug/26364
243         * opts.c (decode_options): Disable inlining of functions called
244         once if not in unit-at-a-time mode.
245
246 2008-01-09  Alexandre Oliva  <aoliva@redhat.com>
247
248         * Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.
249
250 2008-01-08  Richard Guenther  <rguenther@suse.de>
251
252         PR middle-end/31863
253         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
254         out early if the result will be unused.
255
256 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
257
258         PR target/34709
259         Revert:
260
261         2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
262         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
263         for TARGET_RECIP.       
264         
265 2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
266         
267         * config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
268         for vectorization tuned.
269         
270 2008-01-08  Richard Guenther  <rguenther@suse.de>
271
272         PR tree-optimization/34683
273         * tree-ssa-operands.c (operand_build_cmp): Export.
274         * tree-ssa-operands.h (operand_build_cmp): Declare.
275         * tree-vn.c (vuses_compare): Remove.
276         (sort_vuses): Use operand_build_cmp.
277         (sort_vuses_heap): Likewise.
278         * tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
279         to re-use old VEC if available.  Do not sort already sorted VUSEs.
280         (vdefs_to_vec): Do not sort already sorted VDEFs.
281
282 2008-01-08  Jakub Jelinek  <jakub@redhat.com>
283
284         PR middle-end/34694
285         * omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.
286
287 2008-01-08  Uros Bizjak  <ubizjak@gmail.com>
288
289         PR target/34702
290         * doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
291         limitations of reciprocal sequences on x86 targets.
292
293 2008-01-08  Richard Guenther  <rguenther@suse.de>
294
295         PR tree-optimization/34683
296         * tree-flow-inline.h (var_ann): Remove overzealous asserts.
297
298 2008-01-07  Jakub Jelinek  <jakub@redhat.com>
299
300         PR target/34622
301         * config/darwin.c (darwin_mergeable_string_section): Don't use
302         .cstring if int_size_in_bytes != TREE_STRING_LENGTH.
303
304 2008-01-07  Uros Bizjak  <ubizjak@gmail.com>
305
306         PR target/34682
307         * config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
308         negxf2.  Macroize expander using X87MODEF mode iterator.  Change
309         predicates of op0 and op1 to register_operand.
310         (abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
311         expander using X87MODEF mode iterator.  Change predicates of
312         op0 and op1 to register_operand.
313         ("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
314         corresponding patterns and macroize using MODEF macro.  Change
315         predicates of op0 and op1 to register_operand and remove
316         "m" constraint. Disparage "r" alternative with "!".
317         ("*absneg<mode>2_i387"): Rename from corresponding patterns and
318         macroize using X87MODEF macro.  Change predicates of op0 and op1
319         to register_operand and remove "m" constraint.  Disparage "r"
320         alternative with "!".
321         (absneg splitter with memory operands): Remove.
322         ("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
323         patterns and macroize using X87MODEF mode iterator.
324         * config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
325         Change predicate of op1 to register_operand.
326         * config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
327         for memory operands.
328
329 2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>
330
331         * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.
332
333 2008-01-07  Richard Guenther  <rguenther@suse.de>
334
335         * basic-block.h (struct edge_def): Pair dest_idx with goto_locus
336         fields.
337
338 2008-01-07  Richard Guenther  <rguenther@suse.de>
339
340         PR tree-optimization/34683
341         * tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
342         VOPs of the needed size to save memory.  Use VEC_quick_push
343         to save compile-time.
344         (vdefs_to_vec): Likewise.
345
346 2008-01-07  Sa Liu  <saliu@de.ibm.com>
347
348         * config/spu/spu.md (divdf3): Genetate inline code for double
349         division.  The implementation doesn't handle INF or NAN, therefore it
350         only applies when -ffinite-math-only is given.
351
352 2008-01-06  Paolo Carlini  <pcarlini@suse.de>
353
354         PR libstdc++/34680
355         * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
356         * doc/cpp.texi ([Common Predefined Macros]): Document.
357
358 2008-01-06  Uros Bizjak  <ubizjak@gmail.com>
359
360         * config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
361         order to use commutative addition instead of subtraction.
362
363 2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
364             Mircea Namolaru  <namolaru@il.ibm.com>
365             Vladimir Yanovsky  <yanov@il.ibm.com>
366             Revital Eres  <eres@il.ibm.com>
367
368         PR tree-optimization/34263
369         * tree-outof-ssa.c (process_single_block_loop_latch,
370         contains_tree_r): New functions.
371         (analyze_edges_for_bb): Call process_single_block_loop_latch
372         function to empty single-basic-block latch block if possible.
373
374 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
375
376         * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
377         for TARGET_RECIP.
378         (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.
379
380 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
381
382         * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.
383
384 2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>
385
386         * config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.
387
388 2008-01-05  Jakub Jelinek  <jakub@redhat.com>
389
390         PR tree-optimization/34618
391         * tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
392         flag from T.
393
394 2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
395
396         PR target/34673
397         * config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
398         in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
399         Update copyright year.
400
401         * config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
402         Update copyright year.
403         * config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
404         using NR fixup.
405
406 2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>
407
408         * tree-vrp.c (find_conditional_asserts): Remove redundant check that
409         edge does not point to current bb before changing need_assert.
410
411 2008-01-04  Richard Guenther  <rguenther@suse.de>
412
413         PR middle-end/34029
414         * tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
415         for verifying purposes if they are is_gimple_min_invariant.
416
417 2008-01-04  Aldy Hernandez  <aldyh@redhat.com>
418
419         PR tree-optimization/34448
420         PR tree-optimization/34465
421         * gimplify.c (gimplify_init_constructor): Add new parameter
422         notify_temp_creation.  Use it.
423         (gimplify_modify_expr_rhs): Take volatiles into account when
424         optimizing constructors.
425         Do not optimize constructors if gimplify_init_constructor will dump to
426         memory.
427         * gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
428         * gcc.c-torture/compile/pr34448.c: New.
429
430 2008-01-04  Jakub Jelinek  <jakub@redhat.com>
431
432         PR gcov-profile/34609
433         * tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
434         return_slot if result is TREE_ADDRESSABLE.
435
436 2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>
437
438         * config/mips/mips.md (sqrt_condition): Tweak comment.
439         (recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.
440
441 2008-01-03  Tom Tromey  <tromey@redhat.com>
442
443         PR c/34457
444         * c-common.c (c_type_hash): Handle VLAs.
445
446 2008-01-03  Jan Hubicka  <jh@suse.cz>
447
448         PR tree-optimization/31081
449         * tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
450         0 when inlining and not inlining to first basic block.
451         (remap_decl): When var is initialized to 0, don't set default_def.
452         (expand_call_inline): Set entry_bb.
453         * tree-inline.h (copy_body_data): Add entry_bb.
454
455 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
456
457         PR c++/34619
458         * cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
459         before returning.
460
461         PR tree-optimization/29484
462         * tree-inline.c (inline_forbidden_p_2): New function.
463         (inline_forbidden_p): Disallow inlining if some static var
464         has an address of a local LABEL_DECL in its initializer.
465         * doc/extend.texi (Labels as Values): Document &&foo behaviour
466         vs. inlining.
467
468 2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>
469
470         PR tree-optimization/34635
471         * tree-data-ref.c (add_other_self_distances): Make sure that the
472         evolution step is constant.
473
474 2008-01-03  Jakub Jelinek  <jakub@redhat.com>
475
476         PR middle-end/34608
477         * omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.
478
479 2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>
480
481         * tree-sra.c (scalarize_init): Insert the generate_element_init
482         statements after the generate_element_zero statements.
483
484 2008-01-02  Richard Guenther  <rguenther@suse.de>
485
486         PR middle-end/34093
487         PR middle-end/31976
488         * tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
489         for very large number of operands instead of ICEing.
490
491 2008-01-02  Arthur Norman <acn1@cam.ac.uk>
492
493         PR target/34013
494         * gcc/config/i386/i386.c (ix86_expand_prologue): Save red-zone
495         while stack probing.
496
497 2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>
498
499         * c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
500         in C++0x mode.
501
502 2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>
503
504         PR libmudflap/26442
505         * tree-mudflap.c (mx_register_decls): Guard warning by
506         !DECL_ARTIFICIAL check.
507
508 2008-01-01  Jakub Jelinek  <jakub@redhat.com>
509
510         * config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
511         sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
512         sse5_perm<mode>): Fix constraints.