OSDN Git Service

2012-02-01 Tristan Gingold <gingold@adacore.com>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2012-02-01  Tristan Gingold  <gingold@adacore.com>
2
3         * c-typeck.c (composite_type): Keep mode for pointers.
4
5 2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>
6
7         * function.h (regno_reg_rtx): Adjust comment.
8         * reginfo.c (init_reg_modes_target): Only use the previous mode
9         if it fits within one register.  Remove MIPS comment.
10
11 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
12
13         PR bootstrap/52058
14         * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.
15
16 2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
17
18         * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
19         to srak instruction.
20
21 2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
22
23         config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true
24         condition.
25
26 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
27
28         PR bootstrap/52041
29         PR bootstrap/52039
30         PR target/51974
31         * ipa-prop.c (detect_type_change_1): Call ao_ref_init.
32
33 2012-01-31  Richard Guenther  <rguenther@suse.de>
34
35         PR tree-optimization/51528
36         * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
37         assigns.
38
39 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
40
41         PR bootstrap/52041
42         PR bootstrap/52039
43         PR target/51974
44         * ree.c (add_removable_extension): Change def_map argument
45         to unsigned *, store in def_map 1 + offset into *insn_list vector
46         instead of pointers into the vector.
47         (find_removable_extensions): Adjust caller.
48
49 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
50
51         * config/avr/avr.md: Resolve all AS1 and AS2 macros.
52         Transform all "* quoted-c-code" to { c-code }.
53         Remove redundant test for "optimize" in combine patterns.
54         Move (include "avr-dimode.md") to end of file.
55
56 2012-01-30  Bin Cheng  <bin.cheng@arm.com>
57
58         PR target/51835
59         * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
60         for __aeabi_d2iz/__aeabi_d2uiz with hard-float.
61
62 2012-01-30  Richard Guenther  <rguenther@suse.de>
63
64         PR tree-optimization/52028
65         * tree-loop-distribution.c (ldist_gen): Properly update
66         virtual SSA form.
67
68 2012-01-30  Jakub Jelinek  <jakub@redhat.com>
69
70         PR debug/52027
71         * dwarf2out.c (dwarf2out_switch_text_section): Don't call
72         set_cur_line_info_table if not emitting debug info.
73
74         PR tree-optimization/52046
75         * tree-vect-patterns.c (check_bool_pattern): Give up if
76         a comparison could throw.
77
78         PR debug/52048
79         * tree-ssa-tail-merge.c (local_def): Ignore debug uses.
80
81 2012-01-30  Richard Guenther  <rguenther@suse.de>
82
83         PR tree-optimization/52045
84         * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
85         SSA form if cfgcleanup did anything.
86
87 2012-01-30  Richard Guenther  <rguenther@suse.de>
88
89         PR tree-optimization/52045
90         * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
91         before computing final todo.
92
93 2012-01-30  Richard Guenther  <rguenther@suse.de>
94
95         PR tree-optimization/51528
96         * tree-sra.c (sra_modify_assign): Re-factor in preparation
97         for PR51528 fix.
98
99 2012-01-30  Paolo Bonzini  <bonzini@gnu.org>
100
101         * df-problems.c (df_kill_notes): Check that the use refers
102         to the note under examination.
103
104 2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
105
106         PR target/51920
107         * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
108         parameter and use short-lived pseudos.
109         (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
110         (sparc_expand_vector_init): Const-ify local variables and adjust
111         calls to above functions.
112
113 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
114
115         * config/avr/avr.c (out_movqi_mr_r): Fix length computation.
116
117 2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>
118
119         * doc/invoke.texi: Make usage of "compile time" and
120         "run time"/"runtime" consistent throughout the file.
121
122 2012-01-29  Uros Bizjak  <ubizjak@gmail.com>
123
124         * config/alpha/alpha.c (alpha_option_overrride): Default to
125         full IEEE compliance mode for Go language.
126
127 2011-01-29  Tijl Coosemans  <tijl@coosemans.org>
128
129         * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
130         (LINK_SSP_SPEC): Define.
131
132 2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
133
134         PR target/51871
135         * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
136         stubs.
137
138 2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>
139
140         * doc/invoke.texi: Correct hyphenation of "floating point",
141         "double precision", and related terminology throughout the file.
142
143 2012-01-28  Jakub Jelinek  <jakub@redhat.com>
144
145         PR target/52006
146         * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
147         arm_general_register_operand predicate for operand 2 instead of
148         register_operand.
149
150 2012-01-27  Ian Lance Taylor  <iant@google.com>
151
152         PR go/47656
153         * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
154         * builtins.c (expand_builtin_init_trampoline): Add onstack
155         parameter.  Change caller.
156         (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
157         * tree.c (build_common_builtin_nodes): Declare
158         __builtin_init_heap_trampoline.
159
160 2012-01-27  Georg-Johann Lay  <avr@gjlay.de>
161
162         * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
163         tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
164         * config/avr/avr.c: Ditto.
165         (avr_regnames): Remove because unused.
166         * config/avr/avr.md (*cpse.ne): New peephole.
167         (*cpse.eq): New peephole from former cpse peepholes.
168
169 2012-01-27  Michael Eager  <eager@eagercon.com>
170
171         * config/microblaze.c (microblaze_emit_compare): Correct
172         test after pcmp instruction.
173
174 2012-01-27  Richard Guenther  <rguenther@suse.de>
175
176         PR tree-optimization/52020
177         * tree-sra.c (sra_modify_assign): Do not transform clobbers.
178
179 2012-01-27  Richard Guenther  <rguenther@suse.de>
180
181         * ipa-pure-const.c (check_stmt): Clobbers do not make a
182         function non-const/pure.
183
184 2012-01-27  Richard Guenther  <rguenther@suse.de>
185
186         PR tree-optimization/50444
187         * tree-sra.c (build_ref_for_offset): Properly adjust the
188         MEM_REF type for unaligned accesses.
189
190 2012-01-27  Richard Guenther  <rguenther@suse.de>
191
192         PR tree-optimization/50444
193         * expr.c (mem_ref_refers_to_non_mem_p): New function.
194         (expand_assignment): Use it.  Properly handle misaligned
195         bases when expanding stores to component references.
196         (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
197         refactor that case.
198
199 2012-01-27  Andrey Belevantsev  <abel@ispras.ru>
200
201         PR middle-end/51389
202         * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
203         * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
204         * tree-data-ref.c (find_data_references_in_loop): Make static.
205         (compute_all_dependences): Change return type to bool.  Bail out
206         for too many datarefs in a loop.  Move the hunk resetting the data
207         dependences vector from ...
208         (compute_data_dependences_for_loop): ... here.  Account for
209         compute_all_dependences returning false.
210         (compute_data_dependences_for_bb): Likewise.
211         * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
212         * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.
213
214 2012-01-27  Richard Guenther  <rguenther@suse.de>
215
216         PR middle-end/51959
217         * expr.c (store_field): Use the alias-set of the scratch memory
218         for storing to it.
219
220 2012-01-27  Tom de Vries  <tom@codesourcery.com>
221
222         PR tree-optimization/51990
223         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
224         WITH_SIZE_EXPR.
225         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.
226
227 2012-01-27  Jakub Jelinek  <jakub@redhat.com>
228
229         PR debug/52001
230         * var-tracking.c (reverse_op): Don't add any reverse operation
231         if V already has any constant locations.
232
233 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
234
235         * doc/invoke.texi: Correct usage of "command line" (noun)
236         vs "command-line" (adjective) throughout.
237
238 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
239
240         * doc/invoke.texi (Language Independent Options): Move
241         -Wcoverage-mismatch blurb from here....
242         (Warning Options): ...to here.
243
244 2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>
245
246         * config/rs6000/rs6000.c (rs6000_option_override_internal):
247         Set rs6000_always_hint to false for 476.
248
249 2012-01-27  Matthias Klose  <doko@ubuntu.com>
250
251         * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
252           system root.
253         * incpath.c (add_standard_paths): Likewise.
254
255 2012-01-27  Richard Henderson  <rth@redhat.com>
256
257         * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
258         * config/m68k/sync.md (atomic_test_and_set): Rename from
259         sync_test_and_setqi and adjust the operands.
260         (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
261         and unconditionally enable.
262
263 2012-01-27  Richard Henderson  <rth@redhat.com>
264
265         * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
266         * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
267         (ldstub): Rename from ldstubqi.
268         (ldstub<I24MODE>): Remove.
269
270 2012-01-27  Richard Henderson  <rth@redhat.com>
271
272         * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
273         * c-cppbuiltin.c (cpp_atomic_builtins): Define
274         __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
275         * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
276         * doc/tm.texi: Rebuild.
277
278 2012-01-27  Richard Henderson  <rth@redhat.com>
279
280         * optabs.c (gen_atomic_test_and_set): Remove default.
281         (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.
282
283 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
284
285         PR rtl-optimization/51978
286         * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
287         (combine_reaching_defs): Likewise.
288         (struct re_info): Remove.
289         (add_removable_extension): Remove x and data arguments,
290         add insn, insn_list and def_map.  Use the arguments directly
291         instead of using struct re_info.
292         (find_removable_extensions): Don't call add_removable_extension
293         through note_stores, instead just call it with single_set
294         result if non-NULL.
295         (find_and_remove_re): Pass curr_cand->expr instead of
296         PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.
297
298 2012-01-26  Michael Matz  <matz@suse.de>
299
300         PR tree-optimization/46590
301         * cfgexpand.c: Revert last change (r183305).
302         * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
303         regs.
304         * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
305         checking for emptiness.
306
307 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
308
309         PR middle-end/51895
310         * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
311         non-addressable non-BLKmode base correctly.
312
313 2012-01-26  Michael Matz  <matz@suse.de>
314
315         PR tree-optimization/48794
316         * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
317         regions referenced from RESX/EH_DISPATCH.
318
319 2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
320
321         * config/s390/s390.h: Make BRANCH_COST an option.
322         * config/s390/s390.opt: New option -mbranch-cost.
323
324 2012-01-26  Richard Henderson  <rth@redhat.com>
325
326         Revert 2012-01-24 change:
327         * trans-mem.c (requires_barrier): Do not instrument thread local
328         variables and emit save/restore for them.
329
330 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
331
332         PR middle-end/51986
333         * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
334         for pat == 0.
335
336 2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
337
338         * config/mips/mips.c (mips_small_data_pattern_1): Don't process
339         ASM_OPERANDS.
340
341 2012-01-25  Georg-Johann Lay  <avr@gjlay.de>
342
343         PR target/49868
344         Rename __pgm to __flash.
345         Rename __pgm1 to __flash1.
346         Rename __pgm2 to __flash2.
347         Rename __pgm3 to __flash3.
348         Rename __pgm4 to __flash4.
349         Rename __pgm5 to __flash5.
350         Rename __pgmx to __memx.
351         * doc/extend.texi (AVR Named Address Spaces)
352         Rename address space names as indicated above.
353         * config/avr/avr.c (avr_addrspace): Ditto.
354
355         * config/avr/avr-protos.h
356         (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
357         (avr_mem_pgm_p): Rename to avr_mem_flash_p.
358         * config/avr/predicates.md: Ditto.
359         * config/avr/avr.c Ditto, and
360         (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
361         (avr_decl_pgm_p): Rename to avr_decl_flash_p.
362
363         * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
364         (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
365         (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
366         (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
367         (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
368         (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
369         (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
370         * config/avr/avr.c: Ditto.
371         * config/avr/avr.md: Ditto.
372
373 2012-01-25  Jason Merrill  <jason@redhat.com>
374
375         PR c++/51992
376         * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.
377
378 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
379
380         PR tree-optimization/51987
381         * tree-data-ref.c (get_references_in_stmt): Handle references in
382         non-volatile GIMPLE_ASM.
383
384 2012-01-25  Richard Guenther  <rguenther@suse.de>
385
386         * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
387         bases are dereferenced.
388
389 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
390
391         PR rtl-optimization/48374
392         * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.
393
394 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
395
396         * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
397         compute_data_dependences_for_loop returns false.
398         * tree-parloops.c (loop_parallel_p): Likewise.
399
400 2012-01-25  Richard Guenther  <rguenther@suse.de>
401
402         * tree.h (get_pointer_alignment_1): Declare.
403         * builtins.c (get_pointer_alignment_1): New function.
404         (get_pointer_alignment): Use it.
405
406 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
407
408         PR rtl-optimization/48308
409         * combine.c (enum undo_kind): Add UNDO_LINKS.
410         (struct undo): Add member l to other_contents and where.
411         (do_SUBST_LINK): New.
412         (SUBST_LINK): New.
413         (try_combine): Handle LOG_LINKS for the dummy i1 case.
414         (undo_all): Handle UNDO_LINKS.
415
416 2012-01-25  Richard Henderson  <rth@redhat.com>
417
418         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
419         mem inputs.
420
421 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
422
423         * optabs.c (gen_atomic_test_and_set): Use each argument.
424
425 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
426
427         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
428         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
429         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
430         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
431         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
432         TARGET_PAIRED_SINGLE_FLOAT.
433
434 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
435
436         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
437         (in_struct, return_val): Remove MEM documentation.
438         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
439         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
440         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
441         and MEM_SCALAR.
442         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
443         * cfgexpand.c (add_alias_set_conflicts): Likewise.
444         * expr.c (store_field): Likewise.
445         * function.c (assign_stack_temp_for_type): Likewise.
446         * ifcvt.c (noce_try_cmove_arith): Likewise.
447         * reload1.c (reload): Likewise.
448         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
449         (alpha_set_memflags): Likewise.
450         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
451
452 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
453
454         * rtl.h (true_dependence, canon_true_dependence): Remove varies
455         parameter.
456         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
457         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
458         (true_dependence_1, true_dependence, canon_true_dependence): Remove
459         varies parameter.
460         * cselib.c (cselib_rtx_varies_p): Delete.
461         (cselib_invalidate_mem): Update call to canon_true_dependence.
462         * dse.c (record_store, check_mem_read_rtx): Likewise.
463         (scan_reads_nospill): Likewise.
464         * cse.c (check_dependence): Likewise.
465         (cse_rtx_varies_p): Delete.
466         * expr.c (safe_from_p): Update call to true_dependence.
467         * ira.c (validate_equiv_mem_from_store): Likewise.
468         (memref_referenced_p): Likewise.
469         * postreload-gcse.c (find_mem_conflicts): Likewise.
470         * sched-deps.c (sched_analyze_2): Likewise.
471         * store-motion.c (load_kills_store): Likewise.
472         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
473         * gcse.c (mems_conflict_for_gcse_p): Likewise.
474         (compute_transp): Update call to canon_true_dependence.
475
476 2012-01-25  Richard Henderson  <rth@redhat.com>
477
478         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
479         (maybe_emit_atomic_test_and_set): New.
480         (expand_sync_lock_test_and_set): Use it.
481         (expand_atomic_test_and_set): Likewise.
482         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
483         the implementation; clarify implementation defined details.
484         * doc/md.texi (atomic_test_and_set): Document.
485
486 2012-01-25  Richard Henderson  <rth@redhat.com>
487
488         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
489
490 2012-01-25  Richard Henderson  <rth@redhat.com>
491
492         PR target/51968
493         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
494         to effect no-op split.
495
496 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
497
498         PR lto/51698
499         * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
500         (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
501         (BT_FN_VOID_PTR_INT_SIZE): New.
502         (BT_FN_UINT_UINT_VAR): Remove.
503         (BT_FN_UINT32_UINT32_VAR): New.
504         (BT_FN_DOUBLE_VPTR): Remove.
505         (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.
506
507         * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
508         (_ITM_changeTransactionMode): Same.
509         (_ITM_memmoveRtWt): Change return type to void.
510         (_ITM_memcpyRtWt): Same.
511         (_ITM_memsetW): Same.
512         (_ITM_RaRD): Change types to double.
513         (_ITM_RD): Same.
514         (_ITM_RaWD): Same.
515         (_ITM_RfWD): Same.
516
517         * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.
518
519 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
520             Patrick Marlier  <patrick.marlier@gmail.com>
521
522         * trans-mem.c (requires_barrier): Do not instrument thread local
523         variables and emit save/restore for them.
524
525 2012-01-24  Jason Merrill  <jason@redhat.com>
526
527         PR c++/51812
528         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
529         output static aliases.
530
531 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
532
533         PR driver/47249
534         * common.opt (-pie, -shared, pie, shared): Change from Common to
535         Driver.
536         * gcc.c (display_help): Display help for -pie and -shared.
537
538 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
539
540         PR target/49868
541         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
542         Remove note on size/offset limitation.
543         (AVR Variable Attributes): Add example how to read data located
544         with progmem.  Refer to named address spaces.
545         * doc/invoke.texi (AVR Options): Fix typo.
546
547 2012-01-24  Richard Guenther  <rguenther@suse.de>
548
549         Forward-port to trunk
550         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
551
552         PR middle-end/45678
553         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
554         op0 isn't sufficiently aligned and there is movmisalignM
555         insn for mode, use it to load op0 into a temporary register.
556
557 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
558
559         PR target/51957
560         * target.def (const_not_ok_for_debug_p): New hook.
561         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
562         documentation.
563         * doc/tm.texi: Regenerated.
564         * dwarf2out.c (const_ok_for_output_1): If
565         targetm.const_not_ok_for_debug_p returns true, fail.
566         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
567         function.
568         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
569
570 2012-01-23  Kai Tietz  <ktietz@redhat.com>
571
572         PR target/51900
573         * config/i386/predicates.md (symbolic_operand): Allow
574         UNSPEC_PCREL as PIC expression for lea.
575         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
576         * config/i386/i386.c (ix86_delegitimize_address): Handle
577         UNSPEC_PCREL for none-MEM, too.
578
579 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
580
581         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
582         (ipa_tm_create_version_alias): Same.
583
584 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
585
586         PR libitm/51830
587         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
588         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
589
590 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
591             Patrick Marlier  <patrick.marlier@gmail.com>
592             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
593
594         PR lto/51916
595         * lto-wrapper.c (run_gcc): Pass the LTO section name to
596         simple_object_start_read.
597
598 2012-01-23  Richard Guenther  <rguenther@suse.de>
599
600
601         PR tree-optimization/51895
602         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
603         parameter decomposition into BLKmode components.
604
605 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
606
607         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
608         fake variables for restrict-qualified pointers whose pointed-to type
609         contains a placeholder.
610
611 2012-01-23  Richard Guenther  <rguenther@suse.de>
612
613         PR tree-optimization/51949
614         * ipa-split.c (execute_split_functions): Do not split malloc functions.
615
616 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
617
618         PR rtl-optimization/51933
619         * ree.c (transform_ifelse): Return true right away if dstreg is
620         already wider or equal to cand->mode.
621         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
622         (make_defs_and_copies_lists): Remove defs_list and copies_list
623         arguments, add state argument, just truncate state->work_list
624         instead of always allocating and freeing the vector.  Assert that
625         get_defs succeeds instead of returning 2.  Changed return type to bool.
626         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
627         have ext_src_mode, see if it has been modified already with the
628         right kind of extension and has been extended before from the
629         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
630         just return true.  Remember the original mode in state->modified array.
631         (combine_reaching_defs): Add state argument.  Don't allocate and
632         free here def_list, copied_list and vec vectors, instead just
633         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
634         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
635         Add state variable, clear vectors in it, initialize state.modified
636         if needed.  Free all the vectors at the end and state.modified too.
637         Don't skip a candidate if the extension expression has been modified.
638
639 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
640
641         PR target/47096
642         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
643          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
644         (extra_options) interix.opt -> i386/interix.opt"
645         (extra_objs):Add winnt-stubs.o
646         * configure.ac: Add interix to target_os .comm on PE check.
647         * configure: Regenerate.
648         * config/interix3.h: Delete and move bits to..
649         * config/interix.h: Delete and move bits to..
650         * config/i386/i386-interix3.h: Delete and move bits to..
651         * config/i386/i386-interix.h: ..here.
652         (TARGET_CPU_DEFAULT): Remove redefinition.
653         (TARGET_ASM_CONSTRUCTOR): Undefine.
654         (SUBTARGET_SWITCHES): Define for ms-bitfields.
655         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
656         (PTRDIFF_TYPE): Define.
657         (LONG_DOUBLE_TYPE_SIZE): Define.
658         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
659         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
660         (TARGET_SECTION_TYPE_FLAGS): Define.
661         (ASM_DECLARE_FUNCTION_NAME): Define.
662         (ASM_OUTPUT_EXTERNAL): Define.
663         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
664         (ASM_OUTPUT_ALIGNED_BSS): Define.
665         (PCC_BITFIELD_TYPE_MATTERS): Define.
666         (USE_CONST_SECTION): Define.
667         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
668         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
669         (SUPPORTS_ONE_ONLY): Remove.
670         (I386_PE_STRIP_ENCODING): Define.
671         * config/interix.opt: Delete and move bits to..
672         * config/i386/interix.opt: ..here. New.
673         (mpe-aligned-commons): Add.
674         * config/i386/t-interix: Add copyright header.
675         (winnt-stubs.o): Add rule.
676
677 2012-01-22  Jason Merrill  <jason@redhat.com>
678
679         PR c++/51832
680         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
681         for extra name aliases.
682
683 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
684
685         PR rtl-optimization/51924
686         * ree.c (combine_set_extension): Improve debugging message.
687         (combine_reaching_defs): Likewise.
688         (get_defs): Rename confusingly named variable.
689         (find_and_remove_re): Skip a candidate if the extension expression has
690         been modified.
691
692 2012-01-21  Robert Millan  <rmh@gnu.org>
693             Gerald Pfeifer  <gerald@pfeifer.com>
694
695         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
696         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
697
698 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
699
700         PR tree-optimization/51914
701         * tree-vect-stmts.c (vectorizable_conversion): For
702         cvt_type && modifier == WIDEN, put temporary with cvt_type
703         at the beginning of vec_dsts and set vec_dest to temporary
704         with vectype_out.
705
706 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
707
708         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
709
710 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
711
712         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
713         * config/rs6000/rs6000.c: Likewise.
714
715 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
716
717         PR target/51915
718         * config/arm/arm.c (arm_count_output_move_double_insns): Call
719         output_move_double on a copy of operands array.
720
721 2012-01-20  Cary Coutant  <ccoutant@google.com>
722             Dodji Seketeli  <dodji@redhat.com>
723
724         PR debug/45682
725         * dwarf2out.c (copy_declaration_context): Return ref to parent
726         of declaration DIE, if necessary.
727         (remove_child_or_replace_with_skeleton): Add new parameter; update
728         caller.  Place skeleton DIE under parent DIE of original declaration.
729         Move call to copy_declaration_context to here ...
730         (break_out_comdat_types): ... from here.
731
732 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
733
734         PR rtl-optimization/51856
735         * reload.c (find_reloads_subreg_address): Set the address_reloaded
736         flag to reloaded.
737
738 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
739
740         PR target/51819
741         * config/arm/arm.c (arm_print_operand): Correct output of alignment
742         hints for neon loads and stores.
743
744 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
745
746         PR target/49868
747         PR target/50887
748         * doc/extend.texi (Named Address Spaces): Split into subsections.
749         (AVR Named Address Spaces): New subsection.
750         (M32C Named Address Spaces): New subsection.
751         (RL78 Named Address Spaces): New subsection.
752         (SPU Named Address Spaces): New subsection.
753         (Variable Attributes): New anchor "AVR Variable Attributes".
754         (AVR Variable Attributes): Rewrite and avoid wording
755         "address space" in this context.
756         * doc/invoke.texi (AVR Options): Rewrite and add documentation
757         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
758         (AVR Built-in Macros): New subsubsection therein.
759         * doc/md.texi (AVR constraints): Remove "C04", "R".
760
761 2012-01-20  Richard Guenther  <rguenther@suse.de>
762
763         PR tree-optimization/51903
764         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
765         when removing stmts.
766
767 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
768
769         PR target/50313
770         * config/arm/arm.c (arm_load_pic_register): Use
771         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
772         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
773         (arm_pic_static_addr): Likewise.
774         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
775         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
776         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
777         (pic_load_addr_unified): New.
778
779 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
780
781         PR target/51106
782         * function.c (instantiate_virtual_regs_in_insn): Use
783         delete_insn_and_edges when removing a wrong asm insn.
784
785 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
786
787         PR rtl-optimization/40761
788         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
789         Add new member loop_num.
790         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
791         (ira_build): Remove the parameter.
792
793         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
794         (ira.c): Do not build CFG loops for one region allocation.  Remove
795         argument from ira_build call.
796
797         * ira-build.c (init_loop_tree_node): New function.
798         (create_loop_tree_nodes): Use it.  Separate the case when CFG
799         loops are not built.
800         (more_one_region_p): Check current_loops.
801         (finish_loop_tree_nodes): Separate the case when CFG loops are not
802         built.
803         (add_loop_to_tree): Process loop equal to NULL too.
804         (form_loop_tree): Separate the case when CFG loops are not built.
805         Use explicitly number for the root.
806         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
807         an assertion.
808         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
809         instead of loop->num.
810         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
811         (mark_all_loops_for_removal): Ditto.
812         (remove_unnecessary_regions): Separate the case when CFG loops
813         are not built.
814         (ira_build): Remove the parameter.  Use explicit number of regions
815         when CFG loops are not built.
816
817         * ira-color.c (print_loop_title): Separate the case for the root node.
818         Use loop_num instead of loop->num.
819         (move_spill_restore): Use loop_num instead of loop->num.
820
821         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
822         (change_loop): Ditto.
823         (change_loop): Use loop_num instead of loop->num.
824
825         * ira-lives.c (process_bb_node_lives): Ditto.
826
827         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
828
829         * ira-conflicts.c (print_allocno_conflicts): Ditto.
830
831 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
832
833         PR libmudflap/40778
834         * tree-mudflap.c (mf_artificial): New function.
835         (execute_mudflap_function_ops, execute_mudflap_function_decls,
836         mx_register_decls, mudflap_enqueue_decl): Use it.
837
838         PR target/51876
839         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
840         numbers in the insn pattern.
841
842 2012-01-19  Michael Matz  <matz@suse.de>
843
844         PR tree-optimization/46590
845         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
846         use it in remembering which conflicts we already created.
847         (add_scope_conflicts): Adjust call to above, (de)allocate helper
848         bitmap.
849
850 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
851
852         PR lto/51280
853         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
854         (merge_and_complain): Same.
855
856 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
857
858         PR bootstrap/50237
859         * config/initfini-array.h: Guard content of the header
860         with #ifdef HAVE_INITFINI_ARRAY.
861         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
862         Add initfini-array.h to tm_file here.
863         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
864         * config.gcc: Don't add initfini-array.h to tm_file here.
865         * configure: Regenerated.
866
867 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
868
869         PR rtl-optimization/51505
870         * df-problems.c (df_kill_notes): New parameter live. Update comment.
871         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
872         (df_note_bb_compute): Update the call to df_kill_notes.
873
874 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
875
876         * trans-mem.c (requires_barrier): Remove call to is_global_var.
877
878 2012-01-18  Richard Guenther  <rguenther@suse.de>
879
880         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
881         of conversions to void *.
882
883 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
884             Richard Sandiford  <rdsandiford@googlemail.com>
885
886         PR middle-end/50325
887         PR middle-end/51192
888         * optabs.h (simplify_expand_binop): Declare.
889         * optabs.c (simplify_expand_binop): Make global.
890         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
891         endian targets if the source cannot be exactly covered by word
892         mode chunks.
893
894 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
895
896         PR bootstrap/51872
897         * hard-reg-set.h (struct hard_reg_set_container): New type.
898         * target.h (struct hard_reg_set_container): Forward declare.
899         * target.def (set_up_by_prologue): New target hook.
900         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
901         * doc/tm.texi: Regenerated.
902         * function.c (thread_prologue_and_epilogue_insns): Change
903         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
904         Call targetm.set_up_by_prologue on it.
905         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
906         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
907
908 2012-01-17  Nick Clifton  <nickc@redhat.com>
909
910         * config/rx/rx.c (rx_can_use_simple_return): New function.
911         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
912         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
913
914 2012-01-17  Richard Guenther  <rguenther@suse.de>
915
916         PR middle-end/51782
917         * expr.c (expand_assignment): Take address-space information
918         from the address operand of MEM_REF and TARGET_MEM_REF.
919         (expand_expr_real_1): Likewise.
920
921 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
922
923         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
924         reload dump is requested.
925
926 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
927
928         PR other/51165
929         * trans-mem.c (requires_barrier): Call may_be_aliased.
930
931 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
932
933         PR tree-optimization/51877
934         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
935         call arguments and fndecls compare equal, instead return false if they
936         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
937         both SSA_NAMEs that are valueized the same, or they satisfy
938         operand_equal_p.
939
940 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
941
942         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
943         Solaris 11+.
944         * configure: Regenerate.
945
946 2012-01-16  Jan Hubicka  <jh@suse.cz>
947
948         PR c/12245
949         PR c++/14179
950         * convert.c (convert_to_integer): Use fold_convert for
951         converting an INTEGER_CST to integer type.
952
953 2012-01-16  Jason Merrill  <jason@redhat.com>
954
955         PR c++/14179
956         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
957
958 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
959
960         PR bootstrap/51860
961         * config/s390/s390.c (s390_chunkify_start): Don't skip
962         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
963         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
964         If insn is followed by NOTE_INSN_VAR_LOCATION or
965         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
966         Don't use location of note insns.
967
968         PR tree-optimization/51865
969         * tree-inline.c (tree_function_versioning): Call remap_decl
970         on DECL_RESULT whenever it has VOID_TYPE_P type.
971
972 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
973
974         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
975         for calls to locally-binding MIPS16 functions if only the return
976         type uses float regs.
977
978 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
979             Richard Sandiford  <rdsandiford@googlemail.com>
980
981         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
982         (SYMBOL_32_HIGH): Likewise.
983         (mips_output_tls_reloc_directive): Declare.
984         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
985         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
986         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
987         (mips_lo_relocs, mips_hi_relocs): Make extern.
988         (mips16_stub_function): Move up file.
989         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
990         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
991         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
992         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
993         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
994         (mips_get_tp): Add MIPS16 support.
995         (mips_legitimize_tls_address): Remove MIPS16 sorry().
996         Generalize DTPREL and TPREL handling.
997         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
998         Add MIPS16 TLS support.
999         (mips_output_tls_reloc_directive): New function.
1000         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
1001         * config/mips/predicates.md (symbolic_operand_with_high)
1002         (tls_reloc_operand): New predicates.
1003         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
1004         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
1005         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
1006         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
1007         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
1008         (*tls_get_tp_mips16_call_<mode>): Likewise.
1009
1010 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
1011
1012         PR rtl-optimization/51821
1013         * recog.c (peep2_find_free_register): Determine clobbered registers
1014         from insn pattern.
1015
1016 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
1017
1018         PR target/50925
1019         * config/avr/avr-protos.h: Revert change of 2012-01-09.
1020         * config/avr/avr.c: Likewise.
1021         * config/avr/avr.h: Likewise.
1022
1023 2012-01-13  Ian Lance Taylor  <iant@google.com>
1024
1025         PR c++/50012
1026         * tree.h (TYPE_QUALS): Add cast to int.
1027         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
1028
1029 2012-01-13  Ian Lance Taylor  <iant@google.com>
1030
1031         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
1032         comparing param_index to VEC_length result.
1033
1034 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
1035
1036         * c-decl.c: Do not include tree-mudflap.h
1037         * tree-optimize.c: Likewise.
1038         * Makefile.in: Update dependencies.
1039
1040 2012-01-13  Richard Guenther  <rguenther@suse.de>
1041
1042         PR middle-end/8081
1043         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
1044         variable-sized result always use RSO.
1045
1046 2012-01-12  DJ Delorie  <dj@redhat.com>
1047
1048         * cfgexpand.c (convert_debug_memory_address): Allow any valid
1049         pointer type, not just the default pointer type.
1050
1051 2012-01-09  Richard Henderson  <rth@redhat.com>
1052             Denis Chertykov  <chertykov@gmail.com>
1053
1054         PR target/50925
1055         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
1056         * config/avr/avr.c (avr_can_eliminate): Simplify.
1057         (avr_initial_elimination_offset): Likewise.
1058         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
1059         (expand_epilogue): Likewise.
1060         (avr_legitimize_address): Gut.
1061         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
1062         (avr_hard_regno_nregs): New.
1063         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
1064         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
1065         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
1066         add soft frame pointer.
1067         (CALL_USED_REGISTERS): Likewise.
1068         (REG_CLASS_CONTENTS): Likewise.
1069         (REGISTER_NAMES): Likewise.
1070         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
1071         (HARD_FRAME_POINTER_REGNUM): New.
1072         (FRAME_POINTER_REGNUM): Use soft frame pointer.
1073         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
1074         remove the HARD_FRAME_POINTER self-elimination.
1075
1076 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
1077
1078         PR target/51756
1079         * config/avr/avr.c (avr_encode_section_info): Test for absence of
1080         DECL_EXTERNAL when checking for initializers of progmem variables.
1081
1082 2012-01-12  Ira Rosen  <irar@il.ibm.com>
1083
1084         PR tree-optimization/51799
1085         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
1086         that the last operation is a type demotion.
1087
1088 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
1089
1090         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
1091         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
1092
1093 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
1094
1095         PR bootstrap/51796
1096         * combine.c (distribute_notes): If i3 is a noreturn call,
1097         allow old_size to be equal to args_size and make sure the
1098         noreturn call gets REG_ARGS_SIZE note.
1099         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
1100         on noreturn calls even when the delta is 0.
1101
1102 2012-01-11  Nathan Sidwell  <nathan@acm.org>
1103
1104         * gcov.c (STRING_SIZE): Remove.
1105         (generate_results): Erase annotations for source files with no
1106         coverage information.
1107         (read_line): New.
1108         (output_lines): Use it.
1109
1110 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1111
1112         * gimple.h (gimplify_body): Remove first argument.
1113         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
1114         pointer set here, instead just pass DATA to walk_tree.
1115         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
1116         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
1117         (unvisit_body): Likewise, but with unmark_visited.
1118         (gimplify_body): Remove BODY_P argument and adjust.
1119         (gimplify_function_tree): Adjust call to gimplify_body.
1120         * omp-low.c (finalize_task_copyfn): Likewise.
1121
1122 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
1123
1124         * tree.h (build_function_decl_skip_args): Add boolean parameter.
1125         (build_function_type_skip_args): Delete.
1126         * tree.c (build_function_type_skip_args): Make static and add
1127         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
1128         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
1129         pass it to build_function_type_skip_args.
1130         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
1131         (tree_function_versioning): Likewise.
1132         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
1133         build_function_decl_skip_args.
1134         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
1135         and pass it to build_function_decl_skip_args/tree_function_versioning.
1136         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
1137         * ipa-inline-transform.c (save_inline_function_body): Likewise.
1138         * trans-mem.c (ipa_tm_create_version): Likewise.
1139         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
1140         * tree-inline.c (declare_return_variable): Remove always-true test.
1141         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
1142         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
1143         * ipa-split.c (split_function): Skip the return value for the split
1144         part if it doesn't return.
1145
1146 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1147
1148         PR tree-optimization/49642
1149         * ipa-split.c (forbidden_dominators): New variable.
1150         (check_forbidden_calls): New function.
1151         (dominated_by_forbidden): Likewise.
1152         (consider_split): Check for forbidden dominators.
1153         (execute_split_functions): Initialize and free forbidden
1154         dominators info; call check_forbidden_calls.
1155
1156 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1157
1158         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
1159
1160 2012-01-11  Nick Clifton  <nickc@redhat.com>
1161
1162         * config/rx/rx.md (return): Define pattern.
1163
1164 2012-01-11  Richard Guenther  <rguenther@suse.de>
1165
1166         * doc/extend.texi (malloc attribute): Adjust according to
1167         implementation.
1168
1169 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
1170             Patrick Marlier  <patrick.marlier@gmail.com>
1171
1172         PR middle-end/51516
1173         * trans-mem.c (get_cg_data): Traverse aliases if requested.
1174         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
1175         (ipa_tm_note_irrevocable): Same.
1176         (ipa_tm_scan_irr_block): Same.
1177         (ipa_tm_decrement_clone_counts): Same.
1178         (ipa_tm_scan_irr_function): Same.
1179         (ipa_tm_create_version_alias): Same.
1180         (ipa_tm_create_version): Same.
1181         (ipa_tm_transform_calls_redirect): Same.
1182         (ipa_tm_transform_calls): Same.
1183         (ipa_tm_transform_transaction): Same.
1184         (ipa_tm_execute): Same.
1185
1186 2012-01-10  Richard Guenther  <rguenther@suse.de>
1187
1188         PR middle-end/51806
1189         * opts.c (common_handle_option): Handle -Werror.
1190
1191 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
1192
1193         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
1194         operand number.
1195
1196 2012-01-10  Jason Merrill  <jason@redhat.com>
1197
1198         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
1199         information.
1200
1201 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1202
1203         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
1204         supports R_386_TLS_GD_PLT reloc.
1205         (gcc_cv_as_ix86_tlsldmplt): Check if linker
1206         supports R_386_TLS_LDM_PLT reloc.
1207         * configure: Regenerate.
1208         * config.in: Regenerate.
1209
1210 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
1211
1212         PR target/49868
1213         Extend __pgmx semantics to linearize memory.
1214         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
1215         determine if code comes inline or from libgcc.
1216         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
1217         (movmem_qi, movmem_qi): Set constraint #2 to "n".
1218         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
1219         (movmemx_qi, movmemx_hi): New insns.
1220         (xload_<mode>_libgcc): Rewrite to new insn condition.
1221         (xload_<mode>): Remove insns.
1222         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
1223         cases that don't satisfy avr_xload_libgcc_p().
1224         (avr_addr_space_convert): Allow converting in any direction.
1225         (avr_addr_space_subset_p): Return always true.
1226         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
1227         (avr_emit_movmemhi): Ditto.
1228         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
1229         (avr_out_movmem): Ditto.
1230         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
1231         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
1232         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
1233         (avr_encode_section_info): Encode 'progmem' in symbol flags.
1234         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
1235
1236 2012-01-10  Richard Guenther  <rguenther@suse.de>
1237
1238         PR tree-optimization/50913
1239         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
1240         Require data-refs to be representable by Graphite with respect
1241         to any loop nest.
1242
1243 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
1244
1245         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
1246         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
1247
1248 2012-01-10  Tom de Vries  <tom@codesourcery.com>
1249
1250         PR rtl-optimization/51271
1251         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
1252         handling annulled branch.
1253
1254 2012-01-10  Richard Henderson  <rth@redhat.com>
1255
1256         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
1257         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
1258         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
1259         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
1260         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
1261         arm_expand_vec_perm_const): New.
1262         * config/arm/arm-protos.h: Update.
1263         * config/arm/neon.md (UNSPEC_VCONCAT): New.
1264         (*neon_vswp<VDQX>): New.
1265         (neon_vcombine<VDX>): Use neon_split_vcombine.
1266         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
1267         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
1268         (vec_perm<VE>): New.
1269
1270 2012-01-10  Richard Henderson  <rth@redhat.com>
1271
1272         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
1273         use it if reload_completed.
1274         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
1275         arm_output_asm_insn, arm_process_output_memory_barrier,
1276         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
1277         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
1278         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
1279         arm_process_output_sync_insn, arm_output_sync_insn,
1280         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
1281         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
1282         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
1283         (emit_unlikely_jump): New.
1284         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
1285         (arm_split_atomic_op): New.
1286         * config/arm/arm-protos.h: Update.
1287         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
1288         (struct arm_sync_generator): Remove.
1289         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
1290         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
1291         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
1292         (VUNSPEC_LL, VUNSPEC_SC): New.
1293         (sync_result, sync_memory, sync_required_value, sync_new_value,
1294         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
1295         (attr length): Don't use arm_sync_loop_insns.
1296         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
1297         (movsfcc, movdfcc): Likewise.
1298         * config/arm/constraints.md (Ua): New.
1299         * config/arm/prediates.md (mem_noofs_operand): New.
1300         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
1301         (sync_clobber, sync_t2_reqd): Remove.
1302         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
1303         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
1304         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
1305         (arm_sync_compare_and_swap<SIDI>): Remove.
1306         (arm_sync_compare_and_swap<NARROW>): Remove.
1307         (arm_sync_lock_test_and_set<SIDI>): Remove.
1308         (arm_sync_lock_test_and_set<NARROW>): Remove.
1309         (arm_sync_new_<syncop><SIDI>): Remove.
1310         (arm_sync_new_<syncop><NARROW>): Remove.
1311         (arm_sync_new_nand<SIDI>): Remove.
1312         (arm_sync_new_nand<NARROW>): Remove.
1313         (arm_sync_old_<syncop><SIDI>): Remove.
1314         (arm_sync_old_<syncop><NARROW>): Remove.
1315         (arm_sync_old_nand<SIDI>): Remove.
1316         (arm_sync_old_nand<NARROW>): Remove.
1317         (*memory_barrier): Merge arm_output_memory_barrier.
1318         (atomic_compare_and_swap<QHSD>): New.
1319         (atomic_compare_and_swap<NARROW>_1): New.
1320         (atomic_compare_and_swap<SIDI>_1): New.
1321         (atomic_exchange<QHSD>): New.
1322         (cas_cmp_operand, cas_cmp_str): New.
1323         (atomic_op_operand, atomic_op_str): New.
1324         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
1325         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
1326         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
1327         (arm_load_exclusive<NARROW>): New.
1328         (arm_load_exclusivesi, arm_load_exclusivedi): New.
1329         (arm_store_exclusive<QHSD>): New.
1330
1331 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
1332
1333         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
1334         reload patterns if -mvsx-scalar-memory.
1335
1336         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
1337         generated, even -mno-vsx-scalar-double was used.
1338         (vsx_xscvdpsp_scalar): Likewise.
1339         (vsx_xscvspdp_scalar2): Likewise.
1340
1341 2012-01-09  Tom de Vries  <tom@codesourcery.com>
1342             Andrew Pinski  <apinski@cavium.com>
1343
1344         PR debug/51471
1345         * reorg.c (fill_slots_from_thread): Don't speculate
1346         frame-related insns.
1347
1348 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
1349
1350         * sched-int.h (bb_note): Move to...
1351         * basic-block.h: ...here.
1352         * haifa-sched.c (bb_note): Move to...
1353         * cfgrtl.c: ...here.
1354         * function.c (next_block_for_reg): New function.
1355         (move_insn_for_shrink_wrap): Likewise.
1356         (prepare_shrink_wrap): Rewrite to use the above.
1357
1358 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
1359
1360         * gimple.c (is_gimple_non_addressable): Remove.
1361         * gimple.h: Remove is_gimple_non_addressable.
1362         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
1363         is_gimple_non_addressable.
1364         * trans-mem.c (expand_assign_tm): Same.
1365
1366 2012-01-09  Richard Guenther  <rguenther@suse.de>
1367
1368         PR tree-optimization/51775
1369         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
1370         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
1371
1372 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1373
1374         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
1375         tuning parameters.
1376         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
1377
1378 2012-01-09  Richard Guenther  <rguenther@suse.de>
1379
1380         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
1381
1382 2012-01-08  Jan Hubicka  <jh@suse.cz>
1383
1384         PR tree-optimize/51680
1385         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
1386         on when known_vals needs to be computed; cleanup.
1387
1388 2012-01-08  Jan Hubicka  <jh@suse.cz>
1389
1390         PR tree-optimize/51694
1391         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
1392
1393 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
1394
1395         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
1396         for -std=c++98 and -std=c++11 too.
1397
1398 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
1399
1400         * cfgloop.c (cancel_loop): Add free() of bbs array.
1401
1402 2012-01-07  Jan Hubicka  <jh@suse.cz>
1403
1404         PR tree-optimization/51600
1405         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
1406         that benefits small functions.
1407
1408 2012-01-07  Jan Hubicka  <jh@suse.cz>
1409
1410         * ipa-inline.c (want_inline_small_function_p): Fix formating.
1411
1412 2012-01-07  Jan Hubicka  <jh@suse.cz>
1413
1414         PR tree-optimization/51680
1415         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
1416         whose inlining reduce unit size.
1417
1418 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
1419
1420         PR bootstrap/51725
1421         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
1422         Add canonical node to containing_mem chain after the non-canonical
1423         one, even if there weren't any locs to propagate.
1424         (remove_useless_values): Keep only canonical values.
1425         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
1426         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
1427         canonicalize mem_chain elements that are not discarded.
1428
1429 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
1430
1431         PR target/47333
1432         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
1433         before emitting functions.
1434
1435         PR gcov-profile/50127
1436         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
1437         clear_aux_for_blocks.
1438
1439 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
1440
1441         PR debug/51746
1442         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
1443
1444 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
1445
1446         * c-decl.c (ext_block): Moved up.
1447         (collect_all_refs, for_each_global_decl): Take ext_block into account.
1448
1449 2012-01-06  Han Shen  <shenhan@google.com>
1450
1451         Translate built-in include paths for sysroot.
1452         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
1453         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
1454
1455         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
1456         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
1457
1458         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
1459         control whether sysroot should be prepended to gxx include dir.
1460
1461         * configure: Regenerate.
1462
1463 2012-01-06  Torvald Riegel  <triegel@redhat.com>
1464
1465         PR rtl-optimization/51771
1466         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
1467         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
1468
1469 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1470
1471         PR tree-optimization/51315
1472         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
1473         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
1474
1475 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
1476
1477         PR target/51681
1478         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
1479         for shrp pattern.  Correctly handle and fixup shift variable.
1480         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
1481
1482 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1483
1484         PR debug/51762
1485         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
1486         note when !ACCUMULATE_OUTGOING_ARGS.
1487
1488 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1489
1490         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
1491         condition.
1492         (extract_range_from_unary_expr_1): Avoid useless computations.
1493
1494 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1495
1496         PR rtl-optimization/51767
1497         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
1498         of jump_block and add an extra edge for degenerated asm gotos.
1499
1500         PR middle-end/51768
1501         * stmt.c (check_unique_operand_names): Don't ICE during error
1502         reporting if i is from labels chain.
1503
1504         PR middle-end/44777
1505         * profile.c (branch_prob): Split bbs that have exit edge
1506         and need a fake entry edge too.
1507
1508 2012-01-05  Jan Hubicka  <jh@suse.cz>
1509
1510         PR middle-end/49710
1511         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
1512         unlooping loops.
1513
1514 2012-01-05  Richard Guenther  <rguenther@suse.de>
1515
1516         PR lto/50490
1517         * tree-streamer-out.c (write_ts_optimization): New function.
1518         (streamer_write_tree_body): Call it.
1519         * tree-streamer-in.c (lto_input_ts_optimization): New function.
1520         (streamer_read_tree_body): Call it.
1521         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
1522
1523 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1524
1525         PR middle-end/51761
1526         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
1527         * gimplify.c (gimplify_cleanup_point_expr): Save and set
1528         in_cleanup_point_expr before gimplify_stmt call and restore it
1529         afterwards.
1530         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
1531         in_cleanup_point_expr is false.
1532
1533 2012-01-05  Richard Guenther  <rguenther@suse.de>
1534
1535         PR middle-end/51764
1536         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
1537         to c.opt.
1538         * toplev.c (process_options): Reject combining mudflap and LTO.
1539         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
1540
1541 2012-01-05  Richard Guenther  <rguenther@suse.de>
1542
1543         PR tree-optimization/51760
1544         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
1545         not VARYING.
1546         (bit_value_unop): Handle UNDEFINED operands.
1547         (bit_value_binop): Likewise.
1548
1549 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
1550
1551         * config/avr/avr.c (avr_replace_prefix): Remove.
1552         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
1553         (avr_asm_function_rodata_section): Ditto.
1554         (avr_asm_select_section): Ditto.
1555
1556 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
1557
1558         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
1559         insertion.
1560
1561 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1562
1563         PR bootstrap/51648
1564         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
1565         calls that have any non-fake successor edges.
1566
1567         PR debug/51746
1568         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
1569
1570 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1571
1572         PR tree-optimization/51624
1573         * tree-sra.c (build_ref_for_model): When replicating a chain of
1574         COMPONENT_REFs, stop as soon as the offset would become negative.
1575
1576 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
1577
1578         PR debug/51695
1579         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
1580         in .debug_loc on the floor.
1581
1582 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1583
1584         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
1585
1586 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1587             Adam Nemet  <anemet@caviumnetworks.com>
1588
1589         * config/mips/mips.md (size): Add SI and DI.
1590         (SIZE): New mode attribute.
1591         (U): New code attribute.
1592         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
1593         (mips_lbux_<mode>): Delete.
1594         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
1595         (mips_lhx): Use gen_mips_lhx_extsi.
1596         (mips_lhx_<mode>): Delete.
1597         (mips_lwx): Delete.
1598         (mips_l<size>x): New expand.
1599         (mips_lwx_<mode>): Delete.
1600         (mips_l<GPR:size>x_<P:mode>): New pattern.
1601         (*mips_lw<u>x_<P:mode>_ext): Likewise.
1602         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
1603         * config/mips/mips.c (mips_lx_address_p): New function.
1604         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
1605         (dsp64): New availability predicate.
1606         (mips_builtins): Add an entry for __builtin_mips_ldx.
1607         * config/mips/mips.h (ISA_HAS_LBX): New define.
1608         (ISA_HAS_LBUX): Likewise.
1609         (ISA_HAS_LHX): Likewise.
1610         (ISA_HAS_LHUX): Likewise.
1611         (ISA_HAS_LWX): Likewise.
1612         (ISA_HAS_LWUX): Likewise.
1613         (ISA_HAS_LDX): Likewise.
1614         * doc/extend.texi (__builtin_mips_ldx): Document.
1615
1616 2012-01-04  Tristan Gingold  <gingold@adacore.com>
1617
1618         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
1619         when long pointers are used.
1620         * config.build (*-*-*vms*): Handle all OpenVMS targets.
1621         (alpha64-dec-*vms*, alpha*-dec-*vms*)
1622         (ia64-hp-*vms*): Remove.
1623         * config/vms/xm-vms64.h: Delete.
1624
1625 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1626
1627         PR middle-end/51472
1628         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
1629
1630 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1631
1632         * opts.c (finish_options): Remove duplicate sorry.
1633
1634 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1635
1636         PR middle-end/51696
1637         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
1638         correctly.
1639
1640 2012-01-04  Richard Guenther  <rguenther@suse.de>
1641
1642         PR middle-end/51750
1643         * tree.c (size_low_cst): New function.
1644         * tree.h (size_low_cst): Declare.
1645         * fold-const.c (fold_comparison): Use it to extract the low
1646         part of the POINTER_PLUS_EXPR offset.
1647
1648 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
1649
1650         Fix clearing ZERO_REG
1651         * config/avr/avr.md (cc): Add alternative "ldi".
1652         (movqi_insn): Use it in cc attribute.
1653         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
1654         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
1655         (output_reload_insisf): Use ZERO_REG to pre-clear register.
1656
1657 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1658
1659         * configure: Regenerate.
1660
1661 2012-01-04  Richard Guenther  <rguenther@suse.de>
1662
1663         PR tree-optimization/49651
1664         * tree-ssa-structalias.c (type_can_have_subvars): New function.
1665         (var_can_have_subvars): Use it.
1666         (get_constraint_for_1): Only consider subfields if there can be any.
1667
1668 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1669
1670         PR bootstrap/51725
1671         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
1672         to its new canonical_cselib_val and the cselib_val was in
1673         first_containing_mem chain, but the canonical_cselib_val was not,
1674         add the latter into the chain.
1675         (cselib_invalidate_mem): Compare canonical_cselib_val of
1676         addr_list chain elt with v.
1677
1678         PR pch/51722
1679         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
1680         dwarf2out_undef): Allocate e.info using ggc_strdup instead
1681         of xstrdup.
1682         (output_macinfo_op): Don't ggc_strdup fd->filename.
1683         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
1684         then ggc_strdup it.  Don't free inc->info or cur->info.
1685         (output_macinfo): Don't free ref->info or file->info.
1686
1687 2012-01-03  Ira Rosen  <irar@il.ibm.com>
1688
1689         PR tree-optimization/51269
1690         * tree-vect-loop-manip.c (set_prologue_iterations): Make
1691         first_niters a pointer.
1692         (slpeel_tree_peel_loop_to_edge): Likewise.
1693         (vect_do_peeling_for_loop_bound): Update call to
1694         slpeel_tree_peel_loop_to_edge.
1695         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
1696         here.  Remove it from the parameters list.
1697         (vect_do_peeling_for_alignment): Update calls and compute
1698         wide_prolog_niters.
1699
1700 2012-01-03  Richard Guenther  <rguenther@suse.de>
1701
1702         PR tree-optimization/51070
1703         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
1704         Properly handle calls.
1705
1706 2012-01-03  Richard Guenther  <rguenther@suse.de>
1707
1708         PR tree-optimization/51692
1709         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
1710         the LHS of allocation stmts.
1711
1712 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1713
1714         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
1715
1716 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1717
1718         * collect2.c (main): In AIX specific computations for vector
1719         insertions, use CONST_CAST2 to cast from char ** to const char **.
1720
1721 2012-01-03  Richard Guenther  <rguenther@suse.de>
1722
1723         PR debug/51650
1724         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
1725         the context of a limbo DIE when it does not already exist.
1726
1727 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1728
1729         PR tree-optimization/51719
1730         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
1731         but direct call is, clear direct call's lhs and don't add fallthrough
1732         edge from dcall_bb to join_bb and PHIs.
1733
1734 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1735
1736         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
1737         the instructions emitted by the pattern.
1738         ("*TDC_insn_<mode>"): Add comment.
1739
1740 2012-01-03  Richard Guenther  <rguenther@suse.de>
1741
1742         PR middle-end/51730
1743         * fold-const.c (fold_comparison): Properly canonicalize
1744         tree offset and HOST_WIDE_INT bit position.
1745
1746 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
1747
1748         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
1749         operands for extzv pattern.
1750
1751 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1752
1753         PR bootstrap/51725
1754         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
1755         on mem_elt first.
1756
1757 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
1758
1759         * doc/invoke.texi (-flto and related options): Copy-edit.
1760
1761 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1762
1763         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
1764
1765 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1766
1767         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
1768         New patterns.
1769
1770 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1771
1772         * expr.h (move_by_pieces_ninsns): Declare.
1773         * expr.c (move_by_pieces_ninsns): Make external.
1774         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
1775         (mips_store_by_pieces_p): Likewise.
1776         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
1777         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
1778         * config/mips/mips.c (mips_move_by_pieces_p): New function.
1779         (mips_store_by_pieces_p): Likewise.
1780
1781 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1782
1783         * passes.c (register_one_dump_file): Free full_name.
1784
1785         * reload1.c (reload): Don't allocate reg_max_ref_width here.
1786         (calculate_elim_costs_all_insns): Free offsets_at and
1787         offsets_known_at at the end and clear the pointers.
1788
1789 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1790
1791         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
1792         this option introduced in r180739.
1793
1794 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1795
1796         PR target/51345
1797         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
1798         (tmake_file target=avr): Add avr/t-multilib.
1799
1800         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
1801         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
1802         * config/avr/genmultilib.awk: New file.
1803         * config/avr/t-multilib: New auto-generated file.
1804         * config/avr/multilib.h: New auto-generated file.
1805         * config/avr/t-avr (AVR_MCUS): New variable.
1806         (genopt.sh): Use it.
1807         (s-mlib): Depend on t-multilib.
1808         (t-multilib, multilib.h): New dependencies.
1809         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
1810         (MULTILIB_OPTIONS): Remove.
1811         (MULTILIB_MATCHES): Remove.
1812         (MULTILIB_DIRNAMES): Remove.
1813         (MULTILIB_EXCEPTIONS): Remove:
1814         * config/avr/genopt.sh: Don't use hard coded file name;
1815         pass AVR_MCUS from t-avr instead.
1816
1817 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1818
1819         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
1820
1821 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1822
1823         Implement light-weight DImode support.
1824         * config/avr/avr-dimode.md: New file.
1825         * config/avr/avr.md: Include it.
1826         (adjust_len): Add plus64, compare64.
1827         (HIDI): Remove code iterator.
1828         (code_stdname): New code attribute.
1829         (rotx, rotsmode): Remove DI.
1830         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
1831         as code iterator.
1832         * config/avr/avr-protos.h (avr_have_dimode): New.
1833         (avr_out_plus64, avr_out_compare64): New.
1834         * config/avr/avr.c (avr_out_compare): Handle DImode.
1835         (avr_have_dimode): New variable definition and initialization.
1836         (avr_out_compare64, avr_out_plus64): New functions.
1837         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
1838         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
1839         (avr_compare_pattern): Skip DImode comparisons.
1840
1841 2012-01-02  Revital Eres  <revital.eres@linaro.org>
1842
1843         * ddg.c (def_has_ccmode_p): New function.
1844         (add_cross_iteration_register_deps,
1845         create_ddg_dep_from_intra_loop_link): Call it.
1846
1847 2012-01-02  Richard Guenther  <rguenther@suse.de>
1848
1849         PR other/51679
1850         * invoke.texi (fassociative-math): Remove spurious paranthesis.
1851
1852 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1853
1854         * gcc.c (process_command): Update copyright notice dates.
1855         * gcov.c (print_version): Likewise.
1856         * gcov-dump.c (print_version): Likewise.
1857         * mips-tfile.c (main): Likewise.
1858         * mips-tdump.c (main): Likewise.
1859
1860 2012-01-01  Ira Rosen  <irar@il.ibm.com>
1861
1862         PR tree-optimization/51704
1863         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
1864         a use is inside the basic block or loop before accessing its vect info.
1865
1866 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
1867
1868         PR rtl-optimization/51069
1869         * cfgloopmanip.c (remove_path): Removing path making irreducible
1870         region unconditional makes BB part of the region.
1871
1872 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1873
1874         PR tree-optimization/51683
1875         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
1876         calls with side-effects.
1877         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
1878 \f
1879 Copyright (C) 2012 Free Software Foundation, Inc.
1880
1881 Copying and distribution of this file, with or without modification,
1882 are permitted in any medium without royalty provided the copyright
1883 notice and this notice are preserved.