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2012-01-30 Richard Guenther <rguenther@suse.de>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2012-01-30  Richard Guenther  <rguenther@suse.de>
2
3         PR tree-optimization/51528
4         * tree-sra.c (sra_modify_assign): Re-factor in preparation
5         for PR51528 fix.
6
7 2012-01-30  Paolo Bonzini  <bonzini@gnu.org>
8
9         * df-problems.c (df_kill_notes): Check that the use refers
10         to the note under examination.
11
12 2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
13
14         PR target/51920
15         * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
16         parameter and use short-lived pseudos.
17         (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
18         (sparc_expand_vector_init): Const-ify local variables and adjust
19         calls to above functions.
20
21 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
22
23         * config/avr/avr.c (out_movqi_mr_r): Fix length computation.
24
25 2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>
26
27         * doc/invoke.texi: Make usage of "compile time" and
28         "run time"/"runtime" consistent throughout the file.
29
30 2012-01-29  Uros Bizjak  <ubizjak@gmail.com>
31
32         * config/alpha/alpha.c (alpha_option_overrride): Default to
33         full IEEE compliance mode for Go language.
34
35 2011-01-29  Tijl Coosemans  <tijl@coosemans.org>
36
37         * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
38         (LINK_SSP_SPEC): Define.
39
40 2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
41
42         PR target/51871
43         * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
44         stubs.
45
46 2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>
47
48         * doc/invoke.texi: Correct hyphenation of "floating point",
49         "double precision", and related terminology throughout the file.
50
51 2012-01-28  Jakub Jelinek  <jakub@redhat.com>
52
53         PR target/52006
54         * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
55         arm_general_register_operand predicate for operand 2 instead of
56         register_operand.
57
58 2012-01-27  Ian Lance Taylor  <iant@google.com>
59
60         PR go/47656
61         * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
62         * builtins.c (expand_builtin_init_trampoline): Add onstack
63         parameter.  Change caller.
64         (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
65         * tree.c (build_common_builtin_nodes): Declare
66         __builtin_init_heap_trampoline.
67
68 2012-01-27  Georg-Johann Lay  <avr@gjlay.de>
69
70         * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
71         tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
72         * config/avr/avr.c: Ditto.
73         (avr_regnames): Remove because unused.
74         * config/avr/avr.md (*cpse.ne): New peephole.
75         (*cpse.eq): New peephole from former cpse peepholes.
76
77 2012-01-27  Michael Eager  <eager@eagercon.com>
78
79         * config/microblaze.c (microblaze_emit_compare): Correct
80         test after pcmp instruction.
81
82 2012-01-27  Richard Guenther  <rguenther@suse.de>
83
84         PR tree-optimization/52020
85         * tree-sra.c (sra_modify_assign): Do not transform clobbers.
86
87 2012-01-27  Richard Guenther  <rguenther@suse.de>
88
89         * ipa-pure-const.c (check_stmt): Clobbers do not make a
90         function non-const/pure.
91
92 2012-01-27  Richard Guenther  <rguenther@suse.de>
93
94         PR tree-optimization/50444
95         * tree-sra.c (build_ref_for_offset): Properly adjust the
96         MEM_REF type for unaligned accesses.
97
98 2012-01-27  Richard Guenther  <rguenther@suse.de>
99
100         PR tree-optimization/50444
101         * expr.c (mem_ref_refers_to_non_mem_p): New function.
102         (expand_assignment): Use it.  Properly handle misaligned
103         bases when expanding stores to component references.
104         (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
105         refactor that case.
106
107 2012-01-27  Andrey Belevantsev  <abel@ispras.ru>
108
109         PR middle-end/51389
110         * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
111         * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
112         * tree-data-ref.c (find_data_references_in_loop): Make static.
113         (compute_all_dependences): Change return type to bool.  Bail out
114         for too many datarefs in a loop.  Move the hunk resetting the data
115         dependences vector from ...
116         (compute_data_dependences_for_loop): ... here.  Account for
117         compute_all_dependences returning false.
118         (compute_data_dependences_for_bb): Likewise.
119         * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
120         * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.
121
122 2012-01-27  Richard Guenther  <rguenther@suse.de>
123
124         PR middle-end/51959
125         * expr.c (store_field): Use the alias-set of the scratch memory
126         for storing to it.
127
128 2012-01-27  Tom de Vries  <tom@codesourcery.com>
129
130         PR tree-optimization/51990
131         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
132         WITH_SIZE_EXPR.
133         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.
134
135 2012-01-27  Jakub Jelinek  <jakub@redhat.com>
136
137         PR debug/52001
138         * var-tracking.c (reverse_op): Don't add any reverse operation
139         if V already has any constant locations.
140
141 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
142
143         * doc/invoke.texi: Correct usage of "command line" (noun)
144         vs "command-line" (adjective) throughout.
145
146 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
147
148         * doc/invoke.texi (Language Independent Options): Move
149         -Wcoverage-mismatch blurb from here....
150         (Warning Options): ...to here.
151
152 2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>
153
154         * config/rs6000/rs6000.c (rs6000_option_override_internal):
155         Set rs6000_always_hint to false for 476.
156
157 2012-01-27  Matthias Klose  <doko@ubuntu.com>
158
159         * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
160           system root.
161         * incpath.c (add_standard_paths): Likewise.
162
163 2012-01-27  Richard Henderson  <rth@redhat.com>
164
165         * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
166         * config/m68k/sync.md (atomic_test_and_set): Rename from
167         sync_test_and_setqi and adjust the operands.
168         (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
169         and unconditionally enable.
170
171 2012-01-27  Richard Henderson  <rth@redhat.com>
172
173         * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
174         * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
175         (ldstub): Rename from ldstubqi.
176         (ldstub<I24MODE>): Remove.
177
178 2012-01-27  Richard Henderson  <rth@redhat.com>
179
180         * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
181         * c-cppbuiltin.c (cpp_atomic_builtins): Define
182         __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
183         * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
184         * doc/tm.texi: Rebuild.
185
186 2012-01-27  Richard Henderson  <rth@redhat.com>
187
188         * optabs.c (gen_atomic_test_and_set): Remove default.
189         (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.
190
191 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
192
193         PR rtl-optimization/51978
194         * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
195         (combine_reaching_defs): Likewise.
196         (struct re_info): Remove.
197         (add_removable_extension): Remove x and data arguments,
198         add insn, insn_list and def_map.  Use the arguments directly
199         instead of using struct re_info.
200         (find_removable_extensions): Don't call add_removable_extension
201         through note_stores, instead just call it with single_set
202         result if non-NULL.
203         (find_and_remove_re): Pass curr_cand->expr instead of
204         PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.
205
206 2012-01-26  Michael Matz  <matz@suse.de>
207
208         PR tree-optimization/46590
209         * cfgexpand.c: Revert last change (r183305).
210         * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
211         regs.
212         * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
213         checking for emptiness.
214
215 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
216
217         PR middle-end/51895
218         * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
219         non-addressable non-BLKmode base correctly.
220
221 2012-01-26  Michael Matz  <matz@suse.de>
222
223         PR tree-optimization/48794
224         * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
225         regions referenced from RESX/EH_DISPATCH.
226
227 2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
228
229         * config/s390/s390.h: Make BRANCH_COST an option.
230         * config/s390/s390.opt: New option -mbranch-cost.
231
232 2012-01-26  Richard Henderson  <rth@redhat.com>
233
234         Revert 2012-01-24 change:
235         * trans-mem.c (requires_barrier): Do not instrument thread local
236         variables and emit save/restore for them.
237
238 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
239
240         PR middle-end/51986
241         * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
242         for pat == 0.
243
244 2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
245
246         * config/mips/mips.c (mips_small_data_pattern_1): Don't process
247         ASM_OPERANDS.
248
249 2012-01-25  Georg-Johann Lay  <avr@gjlay.de>
250
251         PR target/49868
252         Rename __pgm to __flash.
253         Rename __pgm1 to __flash1.
254         Rename __pgm2 to __flash2.
255         Rename __pgm3 to __flash3.
256         Rename __pgm4 to __flash4.
257         Rename __pgm5 to __flash5.
258         Rename __pgmx to __memx.
259         * doc/extend.texi (AVR Named Address Spaces)
260         Rename address space names as indicated above.
261         * config/avr/avr.c (avr_addrspace): Ditto.
262
263         * config/avr/avr-protos.h
264         (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
265         (avr_mem_pgm_p): Rename to avr_mem_flash_p.
266         * config/avr/predicates.md: Ditto.
267         * config/avr/avr.c Ditto, and
268         (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
269         (avr_decl_pgm_p): Rename to avr_decl_flash_p.
270
271         * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
272         (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
273         (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
274         (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
275         (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
276         (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
277         (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
278         * config/avr/avr.c: Ditto.
279         * config/avr/avr.md: Ditto.
280
281 2012-01-25  Jason Merrill  <jason@redhat.com>
282
283         PR c++/51992
284         * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.
285
286 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
287
288         PR tree-optimization/51987
289         * tree-data-ref.c (get_references_in_stmt): Handle references in
290         non-volatile GIMPLE_ASM.
291
292 2012-01-25  Richard Guenther  <rguenther@suse.de>
293
294         * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
295         bases are dereferenced.
296
297 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
298
299         PR rtl-optimization/48374
300         * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.
301
302 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
303
304         * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
305         compute_data_dependences_for_loop returns false.
306         * tree-parloops.c (loop_parallel_p): Likewise.
307
308 2012-01-25  Richard Guenther  <rguenther@suse.de>
309
310         * tree.h (get_pointer_alignment_1): Declare.
311         * builtins.c (get_pointer_alignment_1): New function.
312         (get_pointer_alignment): Use it.
313
314 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
315
316         PR rtl-optimization/48308
317         * combine.c (enum undo_kind): Add UNDO_LINKS.
318         (struct undo): Add member l to other_contents and where.
319         (do_SUBST_LINK): New.
320         (SUBST_LINK): New.
321         (try_combine): Handle LOG_LINKS for the dummy i1 case.
322         (undo_all): Handle UNDO_LINKS.
323
324 2012-01-25  Richard Henderson  <rth@redhat.com>
325
326         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
327         mem inputs.
328
329 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
330
331         * optabs.c (gen_atomic_test_and_set): Use each argument.
332
333 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
334
335         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
336         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
337         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
338         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
339         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
340         TARGET_PAIRED_SINGLE_FLOAT.
341
342 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
343
344         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
345         (in_struct, return_val): Remove MEM documentation.
346         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
347         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
348         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
349         and MEM_SCALAR.
350         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
351         * cfgexpand.c (add_alias_set_conflicts): Likewise.
352         * expr.c (store_field): Likewise.
353         * function.c (assign_stack_temp_for_type): Likewise.
354         * ifcvt.c (noce_try_cmove_arith): Likewise.
355         * reload1.c (reload): Likewise.
356         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
357         (alpha_set_memflags): Likewise.
358         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
359
360 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
361
362         * rtl.h (true_dependence, canon_true_dependence): Remove varies
363         parameter.
364         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
365         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
366         (true_dependence_1, true_dependence, canon_true_dependence): Remove
367         varies parameter.
368         * cselib.c (cselib_rtx_varies_p): Delete.
369         (cselib_invalidate_mem): Update call to canon_true_dependence.
370         * dse.c (record_store, check_mem_read_rtx): Likewise.
371         (scan_reads_nospill): Likewise.
372         * cse.c (check_dependence): Likewise.
373         (cse_rtx_varies_p): Delete.
374         * expr.c (safe_from_p): Update call to true_dependence.
375         * ira.c (validate_equiv_mem_from_store): Likewise.
376         (memref_referenced_p): Likewise.
377         * postreload-gcse.c (find_mem_conflicts): Likewise.
378         * sched-deps.c (sched_analyze_2): Likewise.
379         * store-motion.c (load_kills_store): Likewise.
380         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
381         * gcse.c (mems_conflict_for_gcse_p): Likewise.
382         (compute_transp): Update call to canon_true_dependence.
383
384 2012-01-25  Richard Henderson  <rth@redhat.com>
385
386         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
387         (maybe_emit_atomic_test_and_set): New.
388         (expand_sync_lock_test_and_set): Use it.
389         (expand_atomic_test_and_set): Likewise.
390         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
391         the implementation; clarify implementation defined details.
392         * doc/md.texi (atomic_test_and_set): Document.
393
394 2012-01-25  Richard Henderson  <rth@redhat.com>
395
396         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
397
398 2012-01-25  Richard Henderson  <rth@redhat.com>
399
400         PR target/51968
401         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
402         to effect no-op split.
403
404 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
405
406         PR lto/51698
407         * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
408         (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
409         (BT_FN_VOID_PTR_INT_SIZE): New.
410         (BT_FN_UINT_UINT_VAR): Remove.
411         (BT_FN_UINT32_UINT32_VAR): New.
412         (BT_FN_DOUBLE_VPTR): Remove.
413         (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.
414
415         * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
416         (_ITM_changeTransactionMode): Same.
417         (_ITM_memmoveRtWt): Change return type to void.
418         (_ITM_memcpyRtWt): Same.
419         (_ITM_memsetW): Same.
420         (_ITM_RaRD): Change types to double.
421         (_ITM_RD): Same.
422         (_ITM_RaWD): Same.
423         (_ITM_RfWD): Same.
424
425         * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.
426
427 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
428             Patrick Marlier  <patrick.marlier@gmail.com>
429
430         * trans-mem.c (requires_barrier): Do not instrument thread local
431         variables and emit save/restore for them.
432
433 2012-01-24  Jason Merrill  <jason@redhat.com>
434
435         PR c++/51812
436         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
437         output static aliases.
438
439 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
440
441         PR driver/47249
442         * common.opt (-pie, -shared, pie, shared): Change from Common to
443         Driver.
444         * gcc.c (display_help): Display help for -pie and -shared.
445
446 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
447
448         PR target/49868
449         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
450         Remove note on size/offset limitation.
451         (AVR Variable Attributes): Add example how to read data located
452         with progmem.  Refer to named address spaces.
453         * doc/invoke.texi (AVR Options): Fix typo.
454
455 2012-01-24  Richard Guenther  <rguenther@suse.de>
456
457         Forward-port to trunk
458         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
459
460         PR middle-end/45678
461         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
462         op0 isn't sufficiently aligned and there is movmisalignM
463         insn for mode, use it to load op0 into a temporary register.
464
465 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
466
467         PR target/51957
468         * target.def (const_not_ok_for_debug_p): New hook.
469         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
470         documentation.
471         * doc/tm.texi: Regenerated.
472         * dwarf2out.c (const_ok_for_output_1): If
473         targetm.const_not_ok_for_debug_p returns true, fail.
474         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
475         function.
476         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
477
478 2012-01-23  Kai Tietz  <ktietz@redhat.com>
479
480         PR target/51900
481         * config/i386/predicates.md (symbolic_operand): Allow
482         UNSPEC_PCREL as PIC expression for lea.
483         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
484         * config/i386/i386.c (ix86_delegitimize_address): Handle
485         UNSPEC_PCREL for none-MEM, too.
486
487 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
488
489         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
490         (ipa_tm_create_version_alias): Same.
491
492 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
493
494         PR libitm/51830
495         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
496         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
497
498 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
499             Patrick Marlier  <patrick.marlier@gmail.com>
500             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
501
502         PR lto/51916
503         * lto-wrapper.c (run_gcc): Pass the LTO section name to
504         simple_object_start_read.
505
506 2012-01-23  Richard Guenther  <rguenther@suse.de>
507
508
509         PR tree-optimization/51895
510         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
511         parameter decomposition into BLKmode components.
512
513 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
514
515         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
516         fake variables for restrict-qualified pointers whose pointed-to type
517         contains a placeholder.
518
519 2012-01-23  Richard Guenther  <rguenther@suse.de>
520
521         PR tree-optimization/51949
522         * ipa-split.c (execute_split_functions): Do not split malloc functions.
523
524 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
525
526         PR rtl-optimization/51933
527         * ree.c (transform_ifelse): Return true right away if dstreg is
528         already wider or equal to cand->mode.
529         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
530         (make_defs_and_copies_lists): Remove defs_list and copies_list
531         arguments, add state argument, just truncate state->work_list
532         instead of always allocating and freeing the vector.  Assert that
533         get_defs succeeds instead of returning 2.  Changed return type to bool.
534         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
535         have ext_src_mode, see if it has been modified already with the
536         right kind of extension and has been extended before from the
537         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
538         just return true.  Remember the original mode in state->modified array.
539         (combine_reaching_defs): Add state argument.  Don't allocate and
540         free here def_list, copied_list and vec vectors, instead just
541         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
542         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
543         Add state variable, clear vectors in it, initialize state.modified
544         if needed.  Free all the vectors at the end and state.modified too.
545         Don't skip a candidate if the extension expression has been modified.
546
547 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
548
549         PR target/47096
550         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
551          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
552         (extra_options) interix.opt -> i386/interix.opt"
553         (extra_objs):Add winnt-stubs.o
554         * configure.ac: Add interix to target_os .comm on PE check.
555         * configure: Regenerate.
556         * config/interix3.h: Delete and move bits to..
557         * config/interix.h: Delete and move bits to..
558         * config/i386/i386-interix3.h: Delete and move bits to..
559         * config/i386/i386-interix.h: ..here.
560         (TARGET_CPU_DEFAULT): Remove redefinition.
561         (TARGET_ASM_CONSTRUCTOR): Undefine.
562         (SUBTARGET_SWITCHES): Define for ms-bitfields.
563         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
564         (PTRDIFF_TYPE): Define.
565         (LONG_DOUBLE_TYPE_SIZE): Define.
566         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
567         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
568         (TARGET_SECTION_TYPE_FLAGS): Define.
569         (ASM_DECLARE_FUNCTION_NAME): Define.
570         (ASM_OUTPUT_EXTERNAL): Define.
571         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
572         (ASM_OUTPUT_ALIGNED_BSS): Define.
573         (PCC_BITFIELD_TYPE_MATTERS): Define.
574         (USE_CONST_SECTION): Define.
575         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
576         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
577         (SUPPORTS_ONE_ONLY): Remove.
578         (I386_PE_STRIP_ENCODING): Define.
579         * config/interix.opt: Delete and move bits to..
580         * config/i386/interix.opt: ..here. New.
581         (mpe-aligned-commons): Add.
582         * config/i386/t-interix: Add copyright header.
583         (winnt-stubs.o): Add rule.
584
585 2012-01-22  Jason Merrill  <jason@redhat.com>
586
587         PR c++/51832
588         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
589         for extra name aliases.
590
591 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
592
593         PR rtl-optimization/51924
594         * ree.c (combine_set_extension): Improve debugging message.
595         (combine_reaching_defs): Likewise.
596         (get_defs): Rename confusingly named variable.
597         (find_and_remove_re): Skip a candidate if the extension expression has
598         been modified.
599
600 2012-01-21  Robert Millan  <rmh@gnu.org>
601             Gerald Pfeifer  <gerald@pfeifer.com>
602
603         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
604         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
605
606 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
607
608         PR tree-optimization/51914
609         * tree-vect-stmts.c (vectorizable_conversion): For
610         cvt_type && modifier == WIDEN, put temporary with cvt_type
611         at the beginning of vec_dsts and set vec_dest to temporary
612         with vectype_out.
613
614 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
615
616         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
617
618 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
619
620         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
621         * config/rs6000/rs6000.c: Likewise.
622
623 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
624
625         PR target/51915
626         * config/arm/arm.c (arm_count_output_move_double_insns): Call
627         output_move_double on a copy of operands array.
628
629 2012-01-20  Cary Coutant  <ccoutant@google.com>
630             Dodji Seketeli  <dodji@redhat.com>
631
632         PR debug/45682
633         * dwarf2out.c (copy_declaration_context): Return ref to parent
634         of declaration DIE, if necessary.
635         (remove_child_or_replace_with_skeleton): Add new parameter; update
636         caller.  Place skeleton DIE under parent DIE of original declaration.
637         Move call to copy_declaration_context to here ...
638         (break_out_comdat_types): ... from here.
639
640 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
641
642         PR rtl-optimization/51856
643         * reload.c (find_reloads_subreg_address): Set the address_reloaded
644         flag to reloaded.
645
646 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
647
648         PR target/51819
649         * config/arm/arm.c (arm_print_operand): Correct output of alignment
650         hints for neon loads and stores.
651
652 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
653
654         PR target/49868
655         PR target/50887
656         * doc/extend.texi (Named Address Spaces): Split into subsections.
657         (AVR Named Address Spaces): New subsection.
658         (M32C Named Address Spaces): New subsection.
659         (RL78 Named Address Spaces): New subsection.
660         (SPU Named Address Spaces): New subsection.
661         (Variable Attributes): New anchor "AVR Variable Attributes".
662         (AVR Variable Attributes): Rewrite and avoid wording
663         "address space" in this context.
664         * doc/invoke.texi (AVR Options): Rewrite and add documentation
665         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
666         (AVR Built-in Macros): New subsubsection therein.
667         * doc/md.texi (AVR constraints): Remove "C04", "R".
668
669 2012-01-20  Richard Guenther  <rguenther@suse.de>
670
671         PR tree-optimization/51903
672         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
673         when removing stmts.
674
675 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
676
677         PR target/50313
678         * config/arm/arm.c (arm_load_pic_register): Use
679         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
680         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
681         (arm_pic_static_addr): Likewise.
682         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
683         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
684         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
685         (pic_load_addr_unified): New.
686
687 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
688
689         PR target/51106
690         * function.c (instantiate_virtual_regs_in_insn): Use
691         delete_insn_and_edges when removing a wrong asm insn.
692
693 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
694
695         PR rtl-optimization/40761
696         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
697         Add new member loop_num.
698         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
699         (ira_build): Remove the parameter.
700
701         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
702         (ira.c): Do not build CFG loops for one region allocation.  Remove
703         argument from ira_build call.
704
705         * ira-build.c (init_loop_tree_node): New function.
706         (create_loop_tree_nodes): Use it.  Separate the case when CFG
707         loops are not built.
708         (more_one_region_p): Check current_loops.
709         (finish_loop_tree_nodes): Separate the case when CFG loops are not
710         built.
711         (add_loop_to_tree): Process loop equal to NULL too.
712         (form_loop_tree): Separate the case when CFG loops are not built.
713         Use explicitly number for the root.
714         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
715         an assertion.
716         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
717         instead of loop->num.
718         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
719         (mark_all_loops_for_removal): Ditto.
720         (remove_unnecessary_regions): Separate the case when CFG loops
721         are not built.
722         (ira_build): Remove the parameter.  Use explicit number of regions
723         when CFG loops are not built.
724
725         * ira-color.c (print_loop_title): Separate the case for the root node.
726         Use loop_num instead of loop->num.
727         (move_spill_restore): Use loop_num instead of loop->num.
728
729         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
730         (change_loop): Ditto.
731         (change_loop): Use loop_num instead of loop->num.
732
733         * ira-lives.c (process_bb_node_lives): Ditto.
734
735         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
736
737         * ira-conflicts.c (print_allocno_conflicts): Ditto.
738
739 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
740
741         PR libmudflap/40778
742         * tree-mudflap.c (mf_artificial): New function.
743         (execute_mudflap_function_ops, execute_mudflap_function_decls,
744         mx_register_decls, mudflap_enqueue_decl): Use it.
745
746         PR target/51876
747         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
748         numbers in the insn pattern.
749
750 2012-01-19  Michael Matz  <matz@suse.de>
751
752         PR tree-optimization/46590
753         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
754         use it in remembering which conflicts we already created.
755         (add_scope_conflicts): Adjust call to above, (de)allocate helper
756         bitmap.
757
758 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
759
760         PR lto/51280
761         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
762         (merge_and_complain): Same.
763
764 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
765
766         PR bootstrap/50237
767         * config/initfini-array.h: Guard content of the header
768         with #ifdef HAVE_INITFINI_ARRAY.
769         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
770         Add initfini-array.h to tm_file here.
771         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
772         * config.gcc: Don't add initfini-array.h to tm_file here.
773         * configure: Regenerated.
774
775 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
776
777         PR rtl-optimization/51505
778         * df-problems.c (df_kill_notes): New parameter live. Update comment.
779         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
780         (df_note_bb_compute): Update the call to df_kill_notes.
781
782 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
783
784         * trans-mem.c (requires_barrier): Remove call to is_global_var.
785
786 2012-01-18  Richard Guenther  <rguenther@suse.de>
787
788         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
789         of conversions to void *.
790
791 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
792             Richard Sandiford  <rdsandiford@googlemail.com>
793
794         PR middle-end/50325
795         PR middle-end/51192
796         * optabs.h (simplify_expand_binop): Declare.
797         * optabs.c (simplify_expand_binop): Make global.
798         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
799         endian targets if the source cannot be exactly covered by word
800         mode chunks.
801
802 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
803
804         PR bootstrap/51872
805         * hard-reg-set.h (struct hard_reg_set_container): New type.
806         * target.h (struct hard_reg_set_container): Forward declare.
807         * target.def (set_up_by_prologue): New target hook.
808         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
809         * doc/tm.texi: Regenerated.
810         * function.c (thread_prologue_and_epilogue_insns): Change
811         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
812         Call targetm.set_up_by_prologue on it.
813         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
814         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
815
816 2012-01-17  Nick Clifton  <nickc@redhat.com>
817
818         * config/rx/rx.c (rx_can_use_simple_return): New function.
819         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
820         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
821
822 2012-01-17  Richard Guenther  <rguenther@suse.de>
823
824         PR middle-end/51782
825         * expr.c (expand_assignment): Take address-space information
826         from the address operand of MEM_REF and TARGET_MEM_REF.
827         (expand_expr_real_1): Likewise.
828
829 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
830
831         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
832         reload dump is requested.
833
834 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
835
836         PR other/51165
837         * trans-mem.c (requires_barrier): Call may_be_aliased.
838
839 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
840
841         PR tree-optimization/51877
842         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
843         call arguments and fndecls compare equal, instead return false if they
844         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
845         both SSA_NAMEs that are valueized the same, or they satisfy
846         operand_equal_p.
847
848 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
849
850         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
851         Solaris 11+.
852         * configure: Regenerate.
853
854 2012-01-16  Jan Hubicka  <jh@suse.cz>
855
856         PR c/12245
857         PR c++/14179
858         * convert.c (convert_to_integer): Use fold_convert for
859         converting an INTEGER_CST to integer type.
860
861 2012-01-16  Jason Merrill  <jason@redhat.com>
862
863         PR c++/14179
864         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
865
866 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
867
868         PR bootstrap/51860
869         * config/s390/s390.c (s390_chunkify_start): Don't skip
870         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
871         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
872         If insn is followed by NOTE_INSN_VAR_LOCATION or
873         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
874         Don't use location of note insns.
875
876         PR tree-optimization/51865
877         * tree-inline.c (tree_function_versioning): Call remap_decl
878         on DECL_RESULT whenever it has VOID_TYPE_P type.
879
880 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
881
882         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
883         for calls to locally-binding MIPS16 functions if only the return
884         type uses float regs.
885
886 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
887             Richard Sandiford  <rdsandiford@googlemail.com>
888
889         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
890         (SYMBOL_32_HIGH): Likewise.
891         (mips_output_tls_reloc_directive): Declare.
892         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
893         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
894         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
895         (mips_lo_relocs, mips_hi_relocs): Make extern.
896         (mips16_stub_function): Move up file.
897         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
898         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
899         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
900         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
901         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
902         (mips_get_tp): Add MIPS16 support.
903         (mips_legitimize_tls_address): Remove MIPS16 sorry().
904         Generalize DTPREL and TPREL handling.
905         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
906         Add MIPS16 TLS support.
907         (mips_output_tls_reloc_directive): New function.
908         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
909         * config/mips/predicates.md (symbolic_operand_with_high)
910         (tls_reloc_operand): New predicates.
911         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
912         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
913         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
914         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
915         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
916         (*tls_get_tp_mips16_call_<mode>): Likewise.
917
918 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
919
920         PR rtl-optimization/51821
921         * recog.c (peep2_find_free_register): Determine clobbered registers
922         from insn pattern.
923
924 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
925
926         PR target/50925
927         * config/avr/avr-protos.h: Revert change of 2012-01-09.
928         * config/avr/avr.c: Likewise.
929         * config/avr/avr.h: Likewise.
930
931 2012-01-13  Ian Lance Taylor  <iant@google.com>
932
933         PR c++/50012
934         * tree.h (TYPE_QUALS): Add cast to int.
935         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
936
937 2012-01-13  Ian Lance Taylor  <iant@google.com>
938
939         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
940         comparing param_index to VEC_length result.
941
942 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
943
944         * c-decl.c: Do not include tree-mudflap.h
945         * tree-optimize.c: Likewise.
946         * Makefile.in: Update dependencies.
947
948 2012-01-13  Richard Guenther  <rguenther@suse.de>
949
950         PR middle-end/8081
951         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
952         variable-sized result always use RSO.
953
954 2012-01-12  DJ Delorie  <dj@redhat.com>
955
956         * cfgexpand.c (convert_debug_memory_address): Allow any valid
957         pointer type, not just the default pointer type.
958
959 2012-01-09  Richard Henderson  <rth@redhat.com>
960             Denis Chertykov  <chertykov@gmail.com>
961
962         PR target/50925
963         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
964         * config/avr/avr.c (avr_can_eliminate): Simplify.
965         (avr_initial_elimination_offset): Likewise.
966         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
967         (expand_epilogue): Likewise.
968         (avr_legitimize_address): Gut.
969         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
970         (avr_hard_regno_nregs): New.
971         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
972         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
973         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
974         add soft frame pointer.
975         (CALL_USED_REGISTERS): Likewise.
976         (REG_CLASS_CONTENTS): Likewise.
977         (REGISTER_NAMES): Likewise.
978         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
979         (HARD_FRAME_POINTER_REGNUM): New.
980         (FRAME_POINTER_REGNUM): Use soft frame pointer.
981         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
982         remove the HARD_FRAME_POINTER self-elimination.
983
984 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
985
986         PR target/51756
987         * config/avr/avr.c (avr_encode_section_info): Test for absence of
988         DECL_EXTERNAL when checking for initializers of progmem variables.
989
990 2012-01-12  Ira Rosen  <irar@il.ibm.com>
991
992         PR tree-optimization/51799
993         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
994         that the last operation is a type demotion.
995
996 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
997
998         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
999         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
1000
1001 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
1002
1003         PR bootstrap/51796
1004         * combine.c (distribute_notes): If i3 is a noreturn call,
1005         allow old_size to be equal to args_size and make sure the
1006         noreturn call gets REG_ARGS_SIZE note.
1007         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
1008         on noreturn calls even when the delta is 0.
1009
1010 2012-01-11  Nathan Sidwell  <nathan@acm.org>
1011
1012         * gcov.c (STRING_SIZE): Remove.
1013         (generate_results): Erase annotations for source files with no
1014         coverage information.
1015         (read_line): New.
1016         (output_lines): Use it.
1017
1018 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1019
1020         * gimple.h (gimplify_body): Remove first argument.
1021         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
1022         pointer set here, instead just pass DATA to walk_tree.
1023         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
1024         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
1025         (unvisit_body): Likewise, but with unmark_visited.
1026         (gimplify_body): Remove BODY_P argument and adjust.
1027         (gimplify_function_tree): Adjust call to gimplify_body.
1028         * omp-low.c (finalize_task_copyfn): Likewise.
1029
1030 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1031
1032         * tree.h (build_function_decl_skip_args): Add boolean parameter.
1033         (build_function_type_skip_args): Delete.
1034         * tree.c (build_function_type_skip_args): Make static and add
1035         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
1036         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
1037         pass it to build_function_type_skip_args.
1038         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
1039         (tree_function_versioning): Likewise.
1040         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
1041         build_function_decl_skip_args.
1042         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
1043         and pass it to build_function_decl_skip_args/tree_function_versioning.
1044         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
1045         * ipa-inline-transform.c (save_inline_function_body): Likewise.
1046         * trans-mem.c (ipa_tm_create_version): Likewise.
1047         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
1048         * tree-inline.c (declare_return_variable): Remove always-true test.
1049         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
1050         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
1051         * ipa-split.c (split_function): Skip the return value for the split
1052         part if it doesn't return.
1053
1054 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1055
1056         PR tree-optimization/49642
1057         * ipa-split.c (forbidden_dominators): New variable.
1058         (check_forbidden_calls): New function.
1059         (dominated_by_forbidden): Likewise.
1060         (consider_split): Check for forbidden dominators.
1061         (execute_split_functions): Initialize and free forbidden
1062         dominators info; call check_forbidden_calls.
1063
1064 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1065
1066         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
1067
1068 2012-01-11  Nick Clifton  <nickc@redhat.com>
1069
1070         * config/rx/rx.md (return): Define pattern.
1071
1072 2012-01-11  Richard Guenther  <rguenther@suse.de>
1073
1074         * doc/extend.texi (malloc attribute): Adjust according to
1075         implementation.
1076
1077 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
1078             Patrick Marlier  <patrick.marlier@gmail.com>
1079
1080         PR middle-end/51516
1081         * trans-mem.c (get_cg_data): Traverse aliases if requested.
1082         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
1083         (ipa_tm_note_irrevocable): Same.
1084         (ipa_tm_scan_irr_block): Same.
1085         (ipa_tm_decrement_clone_counts): Same.
1086         (ipa_tm_scan_irr_function): Same.
1087         (ipa_tm_create_version_alias): Same.
1088         (ipa_tm_create_version): Same.
1089         (ipa_tm_transform_calls_redirect): Same.
1090         (ipa_tm_transform_calls): Same.
1091         (ipa_tm_transform_transaction): Same.
1092         (ipa_tm_execute): Same.
1093
1094 2012-01-10  Richard Guenther  <rguenther@suse.de>
1095
1096         PR middle-end/51806
1097         * opts.c (common_handle_option): Handle -Werror.
1098
1099 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
1100
1101         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
1102         operand number.
1103
1104 2012-01-10  Jason Merrill  <jason@redhat.com>
1105
1106         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
1107         information.
1108
1109 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1110
1111         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
1112         supports R_386_TLS_GD_PLT reloc.
1113         (gcc_cv_as_ix86_tlsldmplt): Check if linker
1114         supports R_386_TLS_LDM_PLT reloc.
1115         * configure: Regenerate.
1116         * config.in: Regenerate.
1117
1118 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
1119
1120         PR target/49868
1121         Extend __pgmx semantics to linearize memory.
1122         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
1123         determine if code comes inline or from libgcc.
1124         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
1125         (movmem_qi, movmem_qi): Set constraint #2 to "n".
1126         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
1127         (movmemx_qi, movmemx_hi): New insns.
1128         (xload_<mode>_libgcc): Rewrite to new insn condition.
1129         (xload_<mode>): Remove insns.
1130         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
1131         cases that don't satisfy avr_xload_libgcc_p().
1132         (avr_addr_space_convert): Allow converting in any direction.
1133         (avr_addr_space_subset_p): Return always true.
1134         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
1135         (avr_emit_movmemhi): Ditto.
1136         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
1137         (avr_out_movmem): Ditto.
1138         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
1139         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
1140         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
1141         (avr_encode_section_info): Encode 'progmem' in symbol flags.
1142         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
1143
1144 2012-01-10  Richard Guenther  <rguenther@suse.de>
1145
1146         PR tree-optimization/50913
1147         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
1148         Require data-refs to be representable by Graphite with respect
1149         to any loop nest.
1150
1151 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
1152
1153         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
1154         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
1155
1156 2012-01-10  Tom de Vries  <tom@codesourcery.com>
1157
1158         PR rtl-optimization/51271
1159         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
1160         handling annulled branch.
1161
1162 2012-01-10  Richard Henderson  <rth@redhat.com>
1163
1164         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
1165         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
1166         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
1167         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
1168         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
1169         arm_expand_vec_perm_const): New.
1170         * config/arm/arm-protos.h: Update.
1171         * config/arm/neon.md (UNSPEC_VCONCAT): New.
1172         (*neon_vswp<VDQX>): New.
1173         (neon_vcombine<VDX>): Use neon_split_vcombine.
1174         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
1175         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
1176         (vec_perm<VE>): New.
1177
1178 2012-01-10  Richard Henderson  <rth@redhat.com>
1179
1180         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
1181         use it if reload_completed.
1182         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
1183         arm_output_asm_insn, arm_process_output_memory_barrier,
1184         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
1185         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
1186         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
1187         arm_process_output_sync_insn, arm_output_sync_insn,
1188         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
1189         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
1190         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
1191         (emit_unlikely_jump): New.
1192         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
1193         (arm_split_atomic_op): New.
1194         * config/arm/arm-protos.h: Update.
1195         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
1196         (struct arm_sync_generator): Remove.
1197         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
1198         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
1199         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
1200         (VUNSPEC_LL, VUNSPEC_SC): New.
1201         (sync_result, sync_memory, sync_required_value, sync_new_value,
1202         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
1203         (attr length): Don't use arm_sync_loop_insns.
1204         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
1205         (movsfcc, movdfcc): Likewise.
1206         * config/arm/constraints.md (Ua): New.
1207         * config/arm/prediates.md (mem_noofs_operand): New.
1208         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
1209         (sync_clobber, sync_t2_reqd): Remove.
1210         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
1211         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
1212         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
1213         (arm_sync_compare_and_swap<SIDI>): Remove.
1214         (arm_sync_compare_and_swap<NARROW>): Remove.
1215         (arm_sync_lock_test_and_set<SIDI>): Remove.
1216         (arm_sync_lock_test_and_set<NARROW>): Remove.
1217         (arm_sync_new_<syncop><SIDI>): Remove.
1218         (arm_sync_new_<syncop><NARROW>): Remove.
1219         (arm_sync_new_nand<SIDI>): Remove.
1220         (arm_sync_new_nand<NARROW>): Remove.
1221         (arm_sync_old_<syncop><SIDI>): Remove.
1222         (arm_sync_old_<syncop><NARROW>): Remove.
1223         (arm_sync_old_nand<SIDI>): Remove.
1224         (arm_sync_old_nand<NARROW>): Remove.
1225         (*memory_barrier): Merge arm_output_memory_barrier.
1226         (atomic_compare_and_swap<QHSD>): New.
1227         (atomic_compare_and_swap<NARROW>_1): New.
1228         (atomic_compare_and_swap<SIDI>_1): New.
1229         (atomic_exchange<QHSD>): New.
1230         (cas_cmp_operand, cas_cmp_str): New.
1231         (atomic_op_operand, atomic_op_str): New.
1232         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
1233         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
1234         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
1235         (arm_load_exclusive<NARROW>): New.
1236         (arm_load_exclusivesi, arm_load_exclusivedi): New.
1237         (arm_store_exclusive<QHSD>): New.
1238
1239 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
1240
1241         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
1242         reload patterns if -mvsx-scalar-memory.
1243
1244         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
1245         generated, even -mno-vsx-scalar-double was used.
1246         (vsx_xscvdpsp_scalar): Likewise.
1247         (vsx_xscvspdp_scalar2): Likewise.
1248
1249 2012-01-09  Tom de Vries  <tom@codesourcery.com>
1250             Andrew Pinski  <apinski@cavium.com>
1251
1252         PR debug/51471
1253         * reorg.c (fill_slots_from_thread): Don't speculate
1254         frame-related insns.
1255
1256 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
1257
1258         * sched-int.h (bb_note): Move to...
1259         * basic-block.h: ...here.
1260         * haifa-sched.c (bb_note): Move to...
1261         * cfgrtl.c: ...here.
1262         * function.c (next_block_for_reg): New function.
1263         (move_insn_for_shrink_wrap): Likewise.
1264         (prepare_shrink_wrap): Rewrite to use the above.
1265
1266 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
1267
1268         * gimple.c (is_gimple_non_addressable): Remove.
1269         * gimple.h: Remove is_gimple_non_addressable.
1270         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
1271         is_gimple_non_addressable.
1272         * trans-mem.c (expand_assign_tm): Same.
1273
1274 2012-01-09  Richard Guenther  <rguenther@suse.de>
1275
1276         PR tree-optimization/51775
1277         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
1278         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
1279
1280 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1281
1282         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
1283         tuning parameters.
1284         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
1285
1286 2012-01-09  Richard Guenther  <rguenther@suse.de>
1287
1288         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
1289
1290 2012-01-08  Jan Hubicka  <jh@suse.cz>
1291
1292         PR tree-optimize/51680
1293         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
1294         on when known_vals needs to be computed; cleanup.
1295
1296 2012-01-08  Jan Hubicka  <jh@suse.cz>
1297
1298         PR tree-optimize/51694
1299         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
1300
1301 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
1302
1303         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
1304         for -std=c++98 and -std=c++11 too.
1305
1306 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
1307
1308         * cfgloop.c (cancel_loop): Add free() of bbs array.
1309
1310 2012-01-07  Jan Hubicka  <jh@suse.cz>
1311
1312         PR tree-optimization/51600
1313         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
1314         that benefits small functions.
1315
1316 2012-01-07  Jan Hubicka  <jh@suse.cz>
1317
1318         * ipa-inline.c (want_inline_small_function_p): Fix formating.
1319
1320 2012-01-07  Jan Hubicka  <jh@suse.cz>
1321
1322         PR tree-optimization/51680
1323         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
1324         whose inlining reduce unit size.
1325
1326 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
1327
1328         PR bootstrap/51725
1329         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
1330         Add canonical node to containing_mem chain after the non-canonical
1331         one, even if there weren't any locs to propagate.
1332         (remove_useless_values): Keep only canonical values.
1333         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
1334         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
1335         canonicalize mem_chain elements that are not discarded.
1336
1337 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
1338
1339         PR target/47333
1340         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
1341         before emitting functions.
1342
1343         PR gcov-profile/50127
1344         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
1345         clear_aux_for_blocks.
1346
1347 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
1348
1349         PR debug/51746
1350         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
1351
1352 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
1353
1354         * c-decl.c (ext_block): Moved up.
1355         (collect_all_refs, for_each_global_decl): Take ext_block into account.
1356
1357 2012-01-06  Han Shen  <shenhan@google.com>
1358
1359         Translate built-in include paths for sysroot.
1360         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
1361         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
1362
1363         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
1364         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
1365
1366         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
1367         control whether sysroot should be prepended to gxx include dir.
1368
1369         * configure: Regenerate.
1370
1371 2012-01-06  Torvald Riegel  <triegel@redhat.com>
1372
1373         PR rtl-optimization/51771
1374         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
1375         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
1376
1377 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1378
1379         PR tree-optimization/51315
1380         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
1381         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
1382
1383 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
1384
1385         PR target/51681
1386         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
1387         for shrp pattern.  Correctly handle and fixup shift variable.
1388         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
1389
1390 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1391
1392         PR debug/51762
1393         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
1394         note when !ACCUMULATE_OUTGOING_ARGS.
1395
1396 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1397
1398         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
1399         condition.
1400         (extract_range_from_unary_expr_1): Avoid useless computations.
1401
1402 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1403
1404         PR rtl-optimization/51767
1405         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
1406         of jump_block and add an extra edge for degenerated asm gotos.
1407
1408         PR middle-end/51768
1409         * stmt.c (check_unique_operand_names): Don't ICE during error
1410         reporting if i is from labels chain.
1411
1412         PR middle-end/44777
1413         * profile.c (branch_prob): Split bbs that have exit edge
1414         and need a fake entry edge too.
1415
1416 2012-01-05  Jan Hubicka  <jh@suse.cz>
1417
1418         PR middle-end/49710
1419         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
1420         unlooping loops.
1421
1422 2012-01-05  Richard Guenther  <rguenther@suse.de>
1423
1424         PR lto/50490
1425         * tree-streamer-out.c (write_ts_optimization): New function.
1426         (streamer_write_tree_body): Call it.
1427         * tree-streamer-in.c (lto_input_ts_optimization): New function.
1428         (streamer_read_tree_body): Call it.
1429         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
1430
1431 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1432
1433         PR middle-end/51761
1434         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
1435         * gimplify.c (gimplify_cleanup_point_expr): Save and set
1436         in_cleanup_point_expr before gimplify_stmt call and restore it
1437         afterwards.
1438         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
1439         in_cleanup_point_expr is false.
1440
1441 2012-01-05  Richard Guenther  <rguenther@suse.de>
1442
1443         PR middle-end/51764
1444         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
1445         to c.opt.
1446         * toplev.c (process_options): Reject combining mudflap and LTO.
1447         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
1448
1449 2012-01-05  Richard Guenther  <rguenther@suse.de>
1450
1451         PR tree-optimization/51760
1452         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
1453         not VARYING.
1454         (bit_value_unop): Handle UNDEFINED operands.
1455         (bit_value_binop): Likewise.
1456
1457 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
1458
1459         * config/avr/avr.c (avr_replace_prefix): Remove.
1460         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
1461         (avr_asm_function_rodata_section): Ditto.
1462         (avr_asm_select_section): Ditto.
1463
1464 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
1465
1466         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
1467         insertion.
1468
1469 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1470
1471         PR bootstrap/51648
1472         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
1473         calls that have any non-fake successor edges.
1474
1475         PR debug/51746
1476         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
1477
1478 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1479
1480         PR tree-optimization/51624
1481         * tree-sra.c (build_ref_for_model): When replicating a chain of
1482         COMPONENT_REFs, stop as soon as the offset would become negative.
1483
1484 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
1485
1486         PR debug/51695
1487         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
1488         in .debug_loc on the floor.
1489
1490 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1491
1492         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
1493
1494 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1495             Adam Nemet  <anemet@caviumnetworks.com>
1496
1497         * config/mips/mips.md (size): Add SI and DI.
1498         (SIZE): New mode attribute.
1499         (U): New code attribute.
1500         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
1501         (mips_lbux_<mode>): Delete.
1502         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
1503         (mips_lhx): Use gen_mips_lhx_extsi.
1504         (mips_lhx_<mode>): Delete.
1505         (mips_lwx): Delete.
1506         (mips_l<size>x): New expand.
1507         (mips_lwx_<mode>): Delete.
1508         (mips_l<GPR:size>x_<P:mode>): New pattern.
1509         (*mips_lw<u>x_<P:mode>_ext): Likewise.
1510         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
1511         * config/mips/mips.c (mips_lx_address_p): New function.
1512         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
1513         (dsp64): New availability predicate.
1514         (mips_builtins): Add an entry for __builtin_mips_ldx.
1515         * config/mips/mips.h (ISA_HAS_LBX): New define.
1516         (ISA_HAS_LBUX): Likewise.
1517         (ISA_HAS_LHX): Likewise.
1518         (ISA_HAS_LHUX): Likewise.
1519         (ISA_HAS_LWX): Likewise.
1520         (ISA_HAS_LWUX): Likewise.
1521         (ISA_HAS_LDX): Likewise.
1522         * doc/extend.texi (__builtin_mips_ldx): Document.
1523
1524 2012-01-04  Tristan Gingold  <gingold@adacore.com>
1525
1526         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
1527         when long pointers are used.
1528         * config.build (*-*-*vms*): Handle all OpenVMS targets.
1529         (alpha64-dec-*vms*, alpha*-dec-*vms*)
1530         (ia64-hp-*vms*): Remove.
1531         * config/vms/xm-vms64.h: Delete.
1532
1533 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1534
1535         PR middle-end/51472
1536         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
1537
1538 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1539
1540         * opts.c (finish_options): Remove duplicate sorry.
1541
1542 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1543
1544         PR middle-end/51696
1545         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
1546         correctly.
1547
1548 2012-01-04  Richard Guenther  <rguenther@suse.de>
1549
1550         PR middle-end/51750
1551         * tree.c (size_low_cst): New function.
1552         * tree.h (size_low_cst): Declare.
1553         * fold-const.c (fold_comparison): Use it to extract the low
1554         part of the POINTER_PLUS_EXPR offset.
1555
1556 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
1557
1558         Fix clearing ZERO_REG
1559         * config/avr/avr.md (cc): Add alternative "ldi".
1560         (movqi_insn): Use it in cc attribute.
1561         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
1562         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
1563         (output_reload_insisf): Use ZERO_REG to pre-clear register.
1564
1565 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1566
1567         * configure: Regenerate.
1568
1569 2012-01-04  Richard Guenther  <rguenther@suse.de>
1570
1571         PR tree-optimization/49651
1572         * tree-ssa-structalias.c (type_can_have_subvars): New function.
1573         (var_can_have_subvars): Use it.
1574         (get_constraint_for_1): Only consider subfields if there can be any.
1575
1576 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1577
1578         PR bootstrap/51725
1579         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
1580         to its new canonical_cselib_val and the cselib_val was in
1581         first_containing_mem chain, but the canonical_cselib_val was not,
1582         add the latter into the chain.
1583         (cselib_invalidate_mem): Compare canonical_cselib_val of
1584         addr_list chain elt with v.
1585
1586         PR pch/51722
1587         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
1588         dwarf2out_undef): Allocate e.info using ggc_strdup instead
1589         of xstrdup.
1590         (output_macinfo_op): Don't ggc_strdup fd->filename.
1591         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
1592         then ggc_strdup it.  Don't free inc->info or cur->info.
1593         (output_macinfo): Don't free ref->info or file->info.
1594
1595 2012-01-03  Ira Rosen  <irar@il.ibm.com>
1596
1597         PR tree-optimization/51269
1598         * tree-vect-loop-manip.c (set_prologue_iterations): Make
1599         first_niters a pointer.
1600         (slpeel_tree_peel_loop_to_edge): Likewise.
1601         (vect_do_peeling_for_loop_bound): Update call to
1602         slpeel_tree_peel_loop_to_edge.
1603         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
1604         here.  Remove it from the parameters list.
1605         (vect_do_peeling_for_alignment): Update calls and compute
1606         wide_prolog_niters.
1607
1608 2012-01-03  Richard Guenther  <rguenther@suse.de>
1609
1610         PR tree-optimization/51070
1611         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
1612         Properly handle calls.
1613
1614 2012-01-03  Richard Guenther  <rguenther@suse.de>
1615
1616         PR tree-optimization/51692
1617         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
1618         the LHS of allocation stmts.
1619
1620 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1621
1622         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
1623
1624 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1625
1626         * collect2.c (main): In AIX specific computations for vector
1627         insertions, use CONST_CAST2 to cast from char ** to const char **.
1628
1629 2012-01-03  Richard Guenther  <rguenther@suse.de>
1630
1631         PR debug/51650
1632         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
1633         the context of a limbo DIE when it does not already exist.
1634
1635 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1636
1637         PR tree-optimization/51719
1638         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
1639         but direct call is, clear direct call's lhs and don't add fallthrough
1640         edge from dcall_bb to join_bb and PHIs.
1641
1642 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1643
1644         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
1645         the instructions emitted by the pattern.
1646         ("*TDC_insn_<mode>"): Add comment.
1647
1648 2012-01-03  Richard Guenther  <rguenther@suse.de>
1649
1650         PR middle-end/51730
1651         * fold-const.c (fold_comparison): Properly canonicalize
1652         tree offset and HOST_WIDE_INT bit position.
1653
1654 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
1655
1656         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
1657         operands for extzv pattern.
1658
1659 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1660
1661         PR bootstrap/51725
1662         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
1663         on mem_elt first.
1664
1665 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
1666
1667         * doc/invoke.texi (-flto and related options): Copy-edit.
1668
1669 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1670
1671         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
1672
1673 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1674
1675         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
1676         New patterns.
1677
1678 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1679
1680         * expr.h (move_by_pieces_ninsns): Declare.
1681         * expr.c (move_by_pieces_ninsns): Make external.
1682         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
1683         (mips_store_by_pieces_p): Likewise.
1684         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
1685         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
1686         * config/mips/mips.c (mips_move_by_pieces_p): New function.
1687         (mips_store_by_pieces_p): Likewise.
1688
1689 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1690
1691         * passes.c (register_one_dump_file): Free full_name.
1692
1693         * reload1.c (reload): Don't allocate reg_max_ref_width here.
1694         (calculate_elim_costs_all_insns): Free offsets_at and
1695         offsets_known_at at the end and clear the pointers.
1696
1697 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1698
1699         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
1700         this option introduced in r180739.
1701
1702 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1703
1704         PR target/51345
1705         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
1706         (tmake_file target=avr): Add avr/t-multilib.
1707
1708         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
1709         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
1710         * config/avr/genmultilib.awk: New file.
1711         * config/avr/t-multilib: New auto-generated file.
1712         * config/avr/multilib.h: New auto-generated file.
1713         * config/avr/t-avr (AVR_MCUS): New variable.
1714         (genopt.sh): Use it.
1715         (s-mlib): Depend on t-multilib.
1716         (t-multilib, multilib.h): New dependencies.
1717         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
1718         (MULTILIB_OPTIONS): Remove.
1719         (MULTILIB_MATCHES): Remove.
1720         (MULTILIB_DIRNAMES): Remove.
1721         (MULTILIB_EXCEPTIONS): Remove:
1722         * config/avr/genopt.sh: Don't use hard coded file name;
1723         pass AVR_MCUS from t-avr instead.
1724
1725 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1726
1727         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
1728
1729 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1730
1731         Implement light-weight DImode support.
1732         * config/avr/avr-dimode.md: New file.
1733         * config/avr/avr.md: Include it.
1734         (adjust_len): Add plus64, compare64.
1735         (HIDI): Remove code iterator.
1736         (code_stdname): New code attribute.
1737         (rotx, rotsmode): Remove DI.
1738         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
1739         as code iterator.
1740         * config/avr/avr-protos.h (avr_have_dimode): New.
1741         (avr_out_plus64, avr_out_compare64): New.
1742         * config/avr/avr.c (avr_out_compare): Handle DImode.
1743         (avr_have_dimode): New variable definition and initialization.
1744         (avr_out_compare64, avr_out_plus64): New functions.
1745         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
1746         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
1747         (avr_compare_pattern): Skip DImode comparisons.
1748
1749 2012-01-02  Revital Eres  <revital.eres@linaro.org>
1750
1751         * ddg.c (def_has_ccmode_p): New function.
1752         (add_cross_iteration_register_deps,
1753         create_ddg_dep_from_intra_loop_link): Call it.
1754
1755 2012-01-02  Richard Guenther  <rguenther@suse.de>
1756
1757         PR other/51679
1758         * invoke.texi (fassociative-math): Remove spurious paranthesis.
1759
1760 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1761
1762         * gcc.c (process_command): Update copyright notice dates.
1763         * gcov.c (print_version): Likewise.
1764         * gcov-dump.c (print_version): Likewise.
1765         * mips-tfile.c (main): Likewise.
1766         * mips-tdump.c (main): Likewise.
1767
1768 2012-01-01  Ira Rosen  <irar@il.ibm.com>
1769
1770         PR tree-optimization/51704
1771         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
1772         a use is inside the basic block or loop before accessing its vect info.
1773
1774 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
1775
1776         PR rtl-optimization/51069
1777         * cfgloopmanip.c (remove_path): Removing path making irreducible
1778         region unconditional makes BB part of the region.
1779
1780 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1781
1782         PR tree-optimization/51683
1783         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
1784         calls with side-effects.
1785         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
1786 \f
1787 Copyright (C) 2012 Free Software Foundation, Inc.
1788
1789 Copying and distribution of this file, with or without modification,
1790 are permitted in any medium without royalty provided the copyright
1791 notice and this notice are preserved.