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* tree-cfg.c (call_can_make_abnormal_goto): New predicate.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2012-03-31  Eric Botcazou  <ebotcazou@adacore.com>
2
3         * tree-cfg.c (call_can_make_abnormal_goto): New predicate.
4         (stmt_can_make_abnormal_goto): Use it.
5         (is_ctrl_altering_stmt): Likewise.
6
7 2012-03-31  Martin Jambor  <mjambor@suse.cz>
8
9         Backported from mainline
10         2012-03-30  Martin Jambor  <mjambor@suse.cz>
11
12         * tree-ssa-ccp.c (insert_clobbers_for_var): Do not assert that there
13         is a builtin_stack_save in a dominating BB.
14
15 2012-03-29  Uros Bizjak  <ubizjak@gmail.com>
16
17         * config/i386/sse.md (avx_h<plusminus_insn>v4df3): Fix results
18         crossing 128bit lane boundary.
19
20 2012-03-29  Uros Bizjak  <ubizjak@gmail.com>
21
22         Backported from mainline
23         2012-03-27  Uros Bizjak  <ubizjak@gmail.com>
24
25         PR target/52698
26         * config/i386/i386-protos.h (ix86_legitimize_reload_address):
27         New prototype.
28         * config/i386/i386.h (LEGITIMIZE_RELOAD_ADDRESS): New define.
29         * config/i386/i386.c: Include reload.h.
30         (ix86_legitimize_reload_address): New function.
31
32 2012-03-28  Martin Jambor  <mjambor@suse.cz>
33
34         Backported from mainline
35         2012-03-27  Martin Jambor  <mjambor@suse.cz>
36
37         PR middle-end/52693
38         * tree-sra.c (sra_modify_assign): Do not call
39         load_assign_lhs_subreplacements when working with an unscalarizable
40         region.
41
42 2012-03-28  Jakub Jelinek  <jakub@redhat.com>
43
44         PR middle-end/52691
45         * tree-ssa-ccp.c (optimize_stdarg_builtin): Optimize
46         __builtin_va_start to __builtin_next_arg if the latter is
47         builtin_decl_explicit_p rather than when it is not.
48
49         PR middle-end/52750
50         * tree-vect-generic.c (vector_element): Perform multiplication
51         for pos in bitsizetype type instead of idx type.
52
53 2012-03-28  Georg-Johann Lay  <avr@gjlay.de>
54
55         Backport from 2012-03-28 mainline r185910.
56
57         PR target/52692
58         * config/avr/avr.c (TARGET_BUILTIN_DECL): New define.
59         (avr_builtin_decl): New static function.
60         (struct avr_builtin_description, avr_bdesc): Move up.
61         Add GTY marker. Add field fndecl. Remove redundant field id.
62         (avr_init_builtins): Initialize avr_bdesc[ID].fndecl.
63         (avr_expand_builtin): Code cleanup because .id is removed.
64
65 2012-03-28  Aurelien Buhrig  <aurelien.buhrig.gcc@gmail.com>
66
67         PR middle-end/51893
68         * expmed.c (store_bit_field_1): Fix wordnum value for big-endian
69         targets.
70
71 2012-03-28  Georg-Johann Lay  <avr@gjlay.de>
72
73         Backport from 2012-03-28 mainline r185907.
74
75         PR target/52737
76         * config.gcc (tm_file): Remove avr/multilib.h.
77
78         * doc/invoke.texi (AVR Options): Adjust
79         documentation of -mtiny-stack.
80
81         * config/avr/genmultilib.awk: Remove code to generate multilib.h.
82         (BEGIN): Use -msp8 as multilib option instead of -mtiny-stack.
83         * config/avr/t-avr: Remove generation of multilib.h.
84         * config/avr/t-multilib: Regenerate.
85         * config/avr/multilib.h: Remove.
86         * config/avr/avr.opt (-msp8): New option.
87         (avr_sp8): New variable.
88         * config/avr/driver-avr.c (avr_device_to_sp8): New function.
89         * config/avr/avr.h (AVR_HAVE_SPH): New define.
90         (AVR_HAVE_8BIT_SP): Also set by avr_sp8 i.e. -msp8.
91         (avr_device_to_sp8): New prototype.
92         (EXTRA_SPEC_FUNCTIONS): Add { "device_to_sp8", avr_device_to_sp8 }
93         (DRIVER_SELF_SPECS): New define.
94         * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in defines:
95         __AVR_SP8__, __AVR_HAVE_SPH__.
96         * config/avr/avr.c (output_movhi): Use AVR_HAVE_SPH instead of
97         AVR_HAVE_8BIT_SP to decide if SP_H is present.
98         (avr_file_start): Ditto.
99
100 2012-03-28  Jakub Jelinek  <jakub@redhat.com>
101
102         PR target/52736
103         * config/i386/sse.md (sse2_loadlpd splitter): Use offset 0
104         instead of 8 in adjust_address.
105
106 2012-03-27  Eric Botcazou  <ebotcazou@adacore.com>
107
108         * expmed.c (store_bit_field): Assert that BITREGION_START is a multiple
109         of a unit before computing the offset in units.
110
111 2012-03-27  Richard Guenther  <rguenther@suse.de>
112
113         PR middle-end/52720
114         * fold-const.c (try_move_mult_to_index): Handle &x.array more
115         explicitely.
116
117 2012-03-24  Eric Botcazou  <ebotcazou@adacore.com>
118
119         PR target/52610
120         * config/sparc/sparc.h (ASM_CPU_SPEC): Pass -Av8 if -mcpu=leon.
121
122 2012-03-24  Steven Bosscher  <steven@gcc.gnu.org>
123
124         PR middle-end/52640
125         * varasm.c: Include pointer-set.h.
126         (pending_assemble_externals_set): New pointer set.
127         (process_pending_assemble_externals): Destroy the pointer set.
128         (assemble_external): See if decl is in pending_assemble_externals_set,
129         and add it to pending_assemble_externals if necessary.
130         (init_varasm_once): Allocate pending_assemble_externals_set.
131
132 2012-03-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
133
134         Backported from mainline
135         2012-03-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
136
137         PR target/50310
138         * config/rs6000/vector.md (vector_uneq<mode>): Add support for
139         UNEQ, LTGT, ORDERED, and UNORDERED IEEE vector comparisons.
140         (vector_ltgt<mode>): Likewise.
141         (vector_ordered<mode>): Likewise.
142         (vector_unordered<mode>): Likewise.
143         * config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise.
144
145 2012-03-23  Joern Rennecke  <joern.rennecke@embecosm.com>
146
147         * config/epiphany/epiphany.c (epiphany_function_value_regno_p):
148         Make static.
149
150 2012-03-22  Kaz Kojima  <kkojima@gcc.gnu.org>
151
152         Backported from mainline
153         2012-03-02  Kaz Kojima  <kkojima@gcc.gnu.org>
154
155         PR target/48596
156         PR target/48806
157         * config/sh/sh.c (sh_register_move_cost): Increase cost between
158         GENERAL_REGS and FP_REGS for SImode.
159
160 2012-03-22  Jakub Jelinek  <jakub@redhat.com>
161
162         PR middle-end/52547
163         * tree-nested.c (convert_tramp_reference_stmt): Call declare_vars
164         on any new_local_var_chain vars declared during recursing on
165         GIMPLE_OMP_PARALLEL or GIMPLE_OMP_TASK body.
166
167 2012-03-22  Georg-Johann Lay  <avr@gjlay.de>
168
169         Backport from 2012-03-22 mainline r185692.
170
171         PR target/52496
172         * config/avr/avr.md (unspec): Remove UNSPEC_MEMORY_BARRIER.
173         (unspecv): Add UNSPECV_MEMORY_BARRIER.
174         (cli_sei): Use unspec_volatile instead of unspec for memory barrier.
175         (delay_cycles_1, delay_cycles_2): Ditto.
176         (delay_cycles_3, delay_cycles_4): Ditto.
177         (nopv, *nopv): Ditto.
178         (sleep, *sleep): Ditto.
179         (wdr, *wdr): Ditto.
180
181         Backport from 2012-03-21 mainline r185605.
182
183         PR rtl-optimization/52543
184         PR target/52461
185         * config/avr/avr-protos.h (avr_load_lpm): New prototype.
186         * config/avr/avr.c (avr_mode_dependent_address_p): New function.
187         (TARGET_MODE_DEPENDENT_ADDRESS_P): New define.
188         (avr_load_libgcc_p): Restrict to __flash loads.
189         (avr_out_lpm): Only handle 1-byte loads from __flash.
190         (avr_load_lpm): New function.
191         (avr_find_unused_d_reg): Remove.
192         (avr_out_lpm_no_lpmx): Remove.
193         (adjust_insn_length): Handle ADJUST_LEN_LOAD_LPM.
194         * config/avr/avr.md (unspec): Add UNSPEC_LPM.
195         (load_<mode>_libgcc): Use UNSPEC_LPM instead of MEM.
196         (load_<mode>, load_<mode>_clobber): New insns.
197         (mov<mode>): For multi-byte move from non-generic
198         16-bit address spaces: Expand to load_<mode> resp.
199         load_<mode>_clobber.
200         (load<mode>_libgcc): Remove expander.
201         (split-lpmx): Remove split.
202
203         Backport from 2012-03-13 mainline r185329.
204
205         PR target/52488
206         * config/avr/avr.c (avr_prologue_setup_frame): Cut down stack
207         offset (size) to a value the insns can deal with.
208         (expand_epilogue): Ditto.
209
210         Backport from 2012-03-12 mainline r185256.
211
212         PR target/52499
213         * config/avr/avr.c (avr_mode_code_base_reg_class): Change return
214         type from reg_class_t to enum reg_class.
215         * config/avr/avr-protos.h (avr_mode_code_base_reg_class): Ditto.
216
217         Backport from 2012-03-12 mainline r185253.
218
219         PR target/52148
220         * config/avr/avr.c (avr_out_movmem): Fix typo in output template
221         for the case ADDR_SPACE_FLASH and AVR_HAVE_LPMX introduced in
222         r184615 from 2012-02-28.
223
224         Backport from 2012-03-08 mainline r185105.
225
226         * config/avr/avr.md (*addhi3, addhi3_clobber): Add "w" alternative
227         for constants in [-63,63].
228
229         Backport from 2012-03-08 mainline r185100.
230
231         PR target/52496
232         * config/avr/avr.c (avr_mem_clobber): New static function.
233         (avr_expand_delay_cycles): Add memory clobber operand to
234         delay_cycles_1, delay_cycles_2, delay_cycles_3, delay_cycles_4.
235         * config/avr/avr.md (unspec): Add UNSPEC_MEMORY_BARRIER.
236         (enable_interrupt, disable_interrupt): New expander.
237         (nopv, sleep, wdr): New expanders.
238         (delay_cycles_1): Add memory clobber.
239         (delay_cycles_2): Add memory clobber.
240         (delay_cycles_3): Add memory clobber.
241         (delay_cycles_4): Add memory clobber.
242         (cli_sei): New insn from former "enable_interrupt",
243         "disable_interrupt" with memory clobber.
244         (*wdt): New insn from former "wdt" with memory clobber.
245         (*nopv): Similar, but for "nopv".
246         (*sleep): Similar, but for "sleep".
247
248         Backport from 2012-03-07 mainline r185043.
249
250         PR target/52484
251         * config/avr/avr.md (xload<mode>_A): Add R22... to register footprint.
252
253         Backport from 2012-03-07 mainline r185032.
254
255         PR target/52506
256         * gcc/config/avr/avr.c (expand_epilogue): Fix order of restoration
257         to: RAMPZ, RAMPY, RAMPX, RAMPD.
258         (expand_prologue): Only clear RAMPZ if it has effect on RAM-read.
259
260         Backport from 2012-03-07 mainline r185031.
261
262         PR target/52505
263         * config/avr/avr.c (avr_out_xload): Don't read unintentionally
264         from RAM.
265         * config/avr/avr.md (xload_8): Adjust insn length.
266
267         Backport from 2012-03-07 mainline r185030.
268
269         PR target/52461
270         * gcc/config/avr/avr.c (avr_out_lpm): Clear RAMPZ after usage
271         if RAMPZ affects reading from RAM.
272
273         Backport from 2012-03-05 mainline r184919.
274
275         * config/avr/avr.md (*umaddqihi4.2): New insn-and-split.
276
277 2012-03-22  Georg-Johann Lay  <avr@gjlay.de>
278
279         Backport from mainline r185259.
280
281         PR other/52545
282         * output.h (SECTION_EXCLUDE, SECTION_MACH_DEP): Don't use
283         SECTION_MACH_DEP reserved bits for SECTION_EXCLUDE.
284
285 2012-03-22  Jakub Jelinek  <jakub@redhat.com>
286
287         Backported from mainline
288         2012-03-13  Jakub Jelinek  <jakub@redhat.com>
289
290         PR c/52577
291         * c-parser.c (c_parser_postfix_expression)
292         <case RID_BUILTIN_SHUFFLE>: Call mark_exp_read on argument values.
293
294         * config/i386/smmintrin.h: Avoid /* within a comment.
295         * config/i386/nmmintrin.h: Likewise.
296
297 2012-03-22  Richard Guenther  <rguenther@suse.de>
298
299         * BASE-VER: Set to 4.7.1.
300         * DEV-PHASE: Set to prerelease.
301
302 2012-03-22  Release Manager
303
304         * GCC 4.7.0 released.
305
306 2012-03-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
307
308         * doc/install.texi (Specific, *-*-solaris2*): Improve wording.
309
310 2012-03-15  Jakub Jelinek  <jakub@redhat.com>
311             Andrew Pinski  <apinski@cavium.com>
312
313         PR middle-end/52592
314         * builtins.c (expand_builtin_int_roundingfn_2): If expanding
315         BUILT_IN_IR{INT,OUND}* using optab fails, emit lr{int,ound}*
316         calls instead of __builtin_ir{int,ound}*.
317
318 2012-03-14  Jakub Jelinek  <jakub@redhat.com>
319
320         PR c++/52582
321         * config/rs6000/rs6000.c (call_ABI_of_interest): Return true
322         if c_node is NULL.
323
324 2012-03-13  Joseph Myers  <joseph@codesourcery.com>
325
326         * doc/invoke.texi (-std=c99), doc/standards.texi (C language):
327         Refer to GCC 4.7 version of c99status.html.
328
329 2012-03-12  Michael Meissner  <meissner@linux.vnet.ibm.com>
330
331         Backport from mainline
332         2012-03-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
333
334         * config/rs6000/linux64.h (OPTION_TARGET_CPU_DEFAULT): Do not
335         redefine to be NULL if the current bit-size is different from the
336         configured bit-size.
337
338         * config/rs6000/rs6000.c (rs6000_option_override_internal): If the
339         cpu is defaulted, use PROCESSOR_DEFAULT and PROCESSOR_DEFAULT64 to
340         set the default tuning.  Add asserts to make sure the cpu and tune
341         indexes are defined.  Fix tests for cpu/tune index to use >= 0 to
342         test whether the index is set, instead of > 0.
343         (rs6000_file_start): Do not reset the default cpu if the current
344         bit-size is different from the configured bit-size.
345
346 2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
347
348         * doc/install.texi (Specific, i?86-*-solaris2.[89]): Update
349         binutils reference.
350         (Specific, i?86-*-solaris2.10): Remove GCC 4.0 reference.
351         Update binutils references.
352         (Specific, *-*-solaris2*): Mention bundled GCC in Solaris 10 and 11.
353         Update binutils reference.
354         Update Sun as/GNU ld caveat.
355         Document binutils largefile requirement for LTO plugin.
356         Remove reference to alternate libpthread.
357
358 2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
359
360         * doc/install.texi (Specific, alpha*-dec-osf5.1): Update binutils
361         reference.
362         (Specific, mips-sgi-irix6): Likewise.
363
364 2012-03-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
365
366         * configure.ac (gcc_cv_as_ix86_tlsldmplt): Add label.
367         * configure: Regenerate.
368
369 2012-03-07  Richard Henderson  <rth@redhat.com>
370
371         * config/m68k/m68k.h (ISA_HAS_TAS): New.
372         * config/m68k/sync.md (atomic_test_and_set): Use it.
373         (atomic_test_and_set_1): Likewise.
374
375 2012-03-07  Ralf Cors├ępius  <ralf.corsepius@rtems.org>
376
377         PR target/51417
378         * Makefile.in: Let install-gcc-ar depend on installdirs,
379         gcc-ar$(exeext), gcc-nm$(exeext), gcc-ranlib$(exeext).
380         Don't double canonicalize if cross-compiling.
381
382 2012-03-06  Aldy Hernandez  <aldyh@redhat.com>
383
384         * trans-mem.c: New typedef for tm_region_p.
385         Define vector types for tm_region_p.
386         (tm_region_init): Replace region_worklist to a vector called
387         bb_regions.
388
389 2012-03-06  Aldy Hernandez  <aldyh@redhat.com>
390
391         PR middle-end/52463
392         * trans-mem.c (tm_region_init): Use last_basic_block.
393
394 2012-03-05  Richard Henderson  <rth@redhat.com>
395
396         PR tree-opt/52242
397         Revert: 2011-11-26  Richard Henderson  <rth@redhat.com>
398         * omp-low.c (expand_omp_atomic): Assume anything aligned to
399         BIGGEST_ALIGNMENT is aligned.
400
401 2012-03-05  Oleg Endo  <olegendo@gcc.gnu.org>
402
403         * config/sh/sh.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New hook.
404
405 2012-03-05  Richard Henderson  <rth@redhat.com>
406
407         PR target/52481
408         * config/m68k/sync.md (atomic_test_and_set): Use expand_simple_unop
409         instead of calling negqi2 directly.
410
411 2012-03-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
412
413         * config/mips/iris6.h [!USED_FOR_TARGET] (long_intmax): Declare.
414         (INTMAX_TYPE): Use it.
415         (UINTMAX_TYPE): Likewise.
416         (SUBTARGET_OVERRIDE_OPTIONS): Define.
417         (irix6_c_common_override_options): Declare.
418         (C_COMMON_OVERRIDE_OPTIONS): Define.
419         * config/mips/mips.c [TARGET_IRIX6] (long_intmax): Define.
420         * config/mips/irix6-c.c: New file.
421         * config/mips/t-irix6 (irix6-c.o): New target.
422         * config.gcc (mips-sgi-irix6.5): Set c_target_objs,
423         cxx_target_objs.
424
425 2012-03-02  Richard Henderson  <rth@redhat.com>
426
427         * optabs.c (expand_atomic_test_and_set): Honor
428         atomic_test_and_set_trueval even when atomic_test_and_set
429         optab is not in use.
430
431 2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>
432
433         Backport from mainline
434         2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>
435
436         * config/rs6000/vsx.md (vsx_set_<mode>): Reorder operands.
437
438 2012-03-02  Richard Guenther  <rguenther@suse.de>
439
440         * DEV-PHASE: Set to prerelease.
441
442 2012-03-01  Richard Earnshaw  <rearnsha@arm.com>
443
444         * config.gcc (obsolete): Add all ARM targets using the FPA.
445         (with_fpu): Obsolete selection of the FPA or Maverick on ARM.
446         * doc/install.texi: Avoid references to obsolete ARM ports.
447
448 2012-03-01  Joern Rennecke  <joern.rennecke@embecosm.com>
449
450         * config/epiphany/epiphany.md (movmisalign<mode>): New patterns.
451
452 2012-03-01  Jeremy Bennett  <jeremy.bennett@embecosm.com>
453             Joern Rennecke  <joern.rennecke@embecosm.com>
454
455         * doc/extend.texi: Expand and update information on interrupt
456         attribute for Epiphany.
457
458 2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>
459
460         * config/sh/sh-protos.h: Update copyright notice dates.
461         * config/sh/sh.h: Likewise.
462         * config/sh/sh.md: Likewise.
463         * config/sh/constraints.md: Likewise.
464         * config/sh/predicates.md: Likewise.
465
466 2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>
467
468         * config/sh/sh-protos.h (tertiary_reload_operand): Remove dead function.
469         * config/sh/sh.c (tertiary_reload_operand): Likewise.
470
471 2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>
472
473         * config/sh/constraints.md: Fix comment typo.
474
475 2012-03-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
476
477         PR target/52408
478         * config/pa/pa.md (zvdep_imm32): Change type of variable x from int to
479         unsigned HOST_WIDE_INT.
480         (zvdep_imm64): Likewise.
481         (vdepi_ior): Change type of variable x from int to HOST_WIDE_INT.
482         (vdepi_and): Likewise.
483         Likewise for unamed 64-bit patterns.
484         * config/pa/predicates.md (lhs_lshift_cint_operand): Update comment.
485
486 2012-03-01  Alexandre Oliva  <aoliva@redhat.com>
487
488         PR debug/52001
489         PR rtl-optimization/52417
490         * cselib.c (cselib_any_perm_equivs): New variable.
491         (cselib_reset_table): Check that it's not set when not
492         preserving constants.
493         (cselib_add_permanent_equiv): Set it.
494         (cselib_have_permanent_equivalences): New.
495         (cselib_init, cselib_finish): Reset it.
496         * cselib.h (cselib_have_permanent_equivalences): Declare.
497         * alias.c (get_addr): Restore earlier behavior when there
498         aren't permanent equivalences.
499
500 2012-03-01  Steven Bosscher  <steven@gcc.gnu.org>
501
502         * config/mn10300/mn10300-modes.def: Fix copyright notice.
503         * config/v850/v850-modes.def: Fix copyright notice.
504
505 2012-03-01  Georg-Johann Lay  <avr@gjlay.de>
506
507         * doc/extend.texi (AVR Built-in Functions): Document
508         __builtin_avr_flash_segment.
509
510         * config/avr/builtins.def (__builtin_avr_flash_segment): New entry.
511         * config/avr/avr.md (flash_segment, flash_segment1): New expanders.
512         (*split.flash_segment): New insn-and-split.
513         * config/avr/avr.c (avr_init_builtins): Add local variables:
514         const_memx_void_node, const_memx_ptr_type_node,
515         char_ftype_const_memx_ptr.
516
517 2012-03-01  Jakub Jelinek  <jakub@redhat.com>
518
519         PR tree-optimization/52445
520         * tree-ssa-phiopt.c (struct name_to_bb): Remove ssa_name field,
521         add ssa_name_ver, offset and size fields and change store field
522         to bool.
523         (name_to_bb_hash, name_to_bb_eq): Adjust for the above changes.
524         (add_or_mark_expr): Likewise.  Only consider previous stores
525         with the same size and offset.
526         (nt_init_block): Only look at gimple_assign_single_p stmts,
527         doesn't look at rhs2.
528
529 2012-03-01  Richard Guenther  <rguenther@suse.de>
530
531         PR middle-end/52443
532         * tree-cfg.c (verify_gimple_assign_unary): Allow any
533         conversions from integral types to pointer types.
534
535 2012-03-01  Georg-Johann Lay  <avr@gjlay.de>
536
537         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Restore built-in
538         defines for __UINT24_MAX__, __INT24_MAX__, __INT24_MIN__
539         unintentionally removed in r184616.
540
541 2012-03-01  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>
542
543         * doc/invoke.texi: Document AMD bdver2 and remove mentioning
544         3DNow from bdver1.
545
546 2012-02-29  Jakub Jelinek  <jakub@redhat.com>
547             Uros Bizjak  <ubizjak@gmail.com>
548
549         PR target/52437
550         * config/i386/sse.md (vec_set<mode>_0): Swap "*r" and "fF"
551         alternatives, add "e" constraint to the new last alternative
552         and ! to last 3 alternatives.
553
554 2012-02-29  Eric Botcazou  <ebotcazou@adacore.com>
555
556         * dwarf2out.c (modified_type_die): Set DW_AT_GNAT_descriptive_type and
557         DW_AT_artificial attributes at the end of the processing.
558         (gen_array_type_die): Likewise.
559         (gen_enumeration_type_die): Likewise.
560         (gen_struct_or_union_type_die): Likewise.
561         (add_gnat_descriptive_type_attribute): Do not suppress debug info for
562         the parent type.
563
564 2012-02-29  Jakub Jelinek  <jakub@redhat.com>
565
566         PR middle-end/52419
567         * expr.c (expand_assignment): If doing misaligned store that doesn't
568         cover all mode bits, perform a RMW cycle.
569
570         PR tree-optimization/52429
571         * tree-parloops.c (separate_decls_in_region_debug): Return early
572         if var is LABEL_DECL.
573
574 2012-02-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
575
576         PR tree-optimization/52424
577         * tree-ssa-dom.c (dom_opt_leave_block): Push a marker before
578         calling dom_thread_across_edge.
579
580 2012-02-29  Georg-Johann Lay  <avr@gjlay.de>
581
582         * config/avr/avr.c: Move definition of TARGET macros to end of file.
583
584 2012-02-29  Georg-Johann Lay  <avr@gjlay.de>
585
586         * config/avr/avr-protos.h (avr_output_bld): Remove unused prototype.
587         * config/avr/avr.c (avr_output_bld): Remove unused function.
588         (avr_out_sbxx_branch): Use "%T" to print bit position.
589
590 2012-02-29  Georg-Johann Lay  <avr@gjlay.de>
591
592         * config/avr/avr.md: Untabify.
593
594 2012-02-29  Georg-Johann Lay  <avr@gjlay.de>
595
596         * config/avr/avr.md (eqne): New code iterator.
597         (*dec-and-branchsi): Use it in text peephole's condition.
598         (*dec-and-branchhi): Ditto.
599         (*dec-and-branchqi): Ditto.
600
601 2012-02-29  Georg-Johann Lay  <avr@gjlay.de>
602
603         PR target/49939
604         * config/avr/avr.h (ASM_SPEC): Add -mno-skip-bug if we know that
605         the device does not have the skip-bug.
606
607 2012-02-29  Oleg Endo  <olegendo@gcc.gnu.org>
608
609         * doc/invoke.texi (-msoft-atomic): Add more detailed description.
610         (-mbranch-cost, -mcbranchdi -mcmpeqdi -mfused-madd
611         -mpretend-cmove): New.
612
613 2012-02-29  Jakub Jelinek  <jakub@redhat.com>
614
615         PR bootstrap/52397
616         * df.h (struct df_d): Adjust comment that hard_regs_live_count
617         doesn't count DEBUG_INSN refs.
618         * df-scan.c (df_ref_create_structure): Don't set DF_HARD_REG_LIVE
619         for DEBUG_INSN refs.
620
621 2012-02-28  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
622
623         Partially revert:
624
625         2012-02-20  Richard Guenther  <rguenther@suse.de>
626         PR tree-optimization/52298
627         * tree-vect-stmts.c (vectorizable_load): Properly use
628         STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
629         outer loops.
630
631 2012-02-28  Aldy Hernandez  <aldyh@redhat.com>
632
633         PR middle-end/51752
634         * gimple.h (gimple_in_transaction): New.
635         (gimple_set_in_transaction): New.
636         (struct gimple_statement_base): Add in_transaction field.
637         * tree-ssa-loop-im.c: (movement_possibility): Restrict movement of
638         transaction loads.
639         (tree_ssa_lim_initialize): Compute transaction bits.
640         * tree.h (compute_transaction_bits): Protoize.
641         * trans-mem.c (tm_region_init): Use the heap to store BB
642         auxilliary data.
643         (compute_transaction_bits): New.
644
645 2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
646
647         * gcc.c (display_help): Document --help=common and sort entries
648         alphabetically.
649
650 2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
651
652         * doc/install.texi: Document check-$LANG specific shortcuts
653
654 2012-02-28  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
655
656         PR target/51534
657         * config/arm/arm.c (neon_builtin_data): Add entries for vcgeu
658         and vcgtu.
659         * config/arm/arm_neon.h: Regenerate.
660         * config/arm/neon.md (unspec): Add UNSPEC_VCGEU, and UNSPEC_VCGTU.
661         (neon_vcgeu): New insn.
662         (neon_vcgtu): Likewise.
663         * config/arm/neon.ml (s_8_32, u_8_32): New lists.
664         (ops): Unsigned comparison intrinsics call a different
665         builtin.
666
667 2012-02-28  Richard Guenther  <rguenther@suse.de>
668
669         PR target/52407
670         * config/i386/i386.c (ix86_expand_vector_set): Fix element
671         ordering for the VEC_CONCAT for two element vectors for
672         V2SFmode, V2SImode and V2DImode.
673
674 2012-02-28  Richard Earnshaw  <rearnsha@arm.com>
675
676         PR target/49448
677         * config.gcc (arm*-*-linux*): Use an unambiguous pattern for
678         detecting big-endian triplets.
679
680 2012-02-28  Richard Earnshaw  <rearnsha@arm.com>
681
682         * arm.c (aapcs_vfp_is_call_or_return_candidate): Only use the machine
683         mode if there is no type information available.
684
685 2012-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>
686
687         PR tree-optimization/53207
688         * doc/invoke.texi: Document as experimental and relying on graphite.
689
690 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
691
692         * config/avr/avr-devices.c (avr_mcu_type): Adjust NULL part
693         of initializer to changes from r184614.
694
695 2012-02-28  Richard Guenther  <rguenther@suse.de>
696
697         PR tree-optimization/52395
698         * tree-sra.c (build_ref_for_offset): Also look at the base
699         TYPE_ALIGN when figuring out the alignment of the replacement.
700
701 2012-02-28  Richard Guenther  <rguenther@suse.de>
702
703         PR tree-optimization/52402
704         * ipa-prop.c (ipa_modify_call_arguments): Properly use
705         mis-aligned types when creating the accesses at the call site.
706
707 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
708
709         * config/avr/builtins.def: New file.
710         * config/avr/t-avr (avr.o, avr-c.o): Depend on it.
711         * config/avr/avr.c (enum avr_builtin_id): Use it.
712         (avr_init_builtins): Use it. And use avr_bdesc.
713         (bdesc_1arg): Remove.
714         (bdesc_2arg): Remove.
715         (bdesc_3arg): Remove.
716         (struct avr_builtin_description): Add field n_args.
717         (avr_bdesc): New static variable using builtins.def.
718         (avr_expand_builtin): Use it.
719         Don't call avr_expand_delay_cycles if op0 is not CONST_INT.
720         (avr_fold_builtin): Fold AVR_BUILTIN_SWAP.
721         Don't fold AVR_BUILTIN_INSERT_BITS if arg0 is not INTEGER_CST.
722
723 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
724
725         PR target/52148
726         * config/avr/avr.md (movmem_<mode>): Replace match_operand that
727         match only one single hard register with respective hard reg rtx.
728         (movmemx_<mode>): Ditto.
729         * config/avr/avr.c (avr_emit_movmemhi): Adapt expanding to new
730         insn anatomy of movmem[x]_<mode>.
731         (avr_out_movmem): Same for printing assembler and operand usage.
732
733 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
734
735         PR target/49868
736         PR target/52261
737         * doc/extend.texi (AVR Named Address Spaces): No more try to fix
738         address spaces located outside of device flash.
739
740         * config/avr/avr.h (base_arch_s): Remove field n_segments.
741         (mcu_type_s): Add field n_flash.
742         * config/avr/avr-devices.c (avr_arch_types): Remove .n_segments.
743         Set .have_elpm and .have_elpmx to 1 for avrxmega4 and avrxmega5.
744         (AVR_MCU): Add N_FLASH argument.
745         * config/avr/avr-mcus.def (AVR_MCU): Add initializer for .n_flash.
746         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Only define built-in
747         macro __FLASH<n> if that address space makes sense for the device.
748         * config/avr/avr.c (avr_out_lpm): Don't try to fix address spaces
749         outside of target flash.
750         (avr_asm_named_section): Ditto.
751         (avr_asm_select_section): Ditto.
752         (avr_addr_space_convert): Ditto.
753         (avr_emit_movmemhi): Ditto.
754         (avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Error if
755         address space is outside of device flash.
756         (avr_insert_attributes): Ditto.
757         (avr_xload_libgcc_p): Use avr_current_device->n_flash instead of
758         avr_current_arch->n_segments.
759
760 2012-02-27  H.J. Lu  <hongjiu.lu@intel.com>
761
762         PR target/52352
763         * config/i386/i386.md (*movabs<mode>_1): Enable only for
764         TARGET_LP64.
765         (*movabs<mode>_2): Likewise.
766
767 2012-02-27  Jakub Jelinek  <jakub@redhat.com>
768
769         PR target/52375
770         * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Use
771         s_register_operand in the test instead of REG_P.  Don't call
772         gen_reg_rtx if it won't be used.
773
774         PR tree-optimization/52376
775         * ipa-split.c (split_function): Ignore CLOBBER stmts.
776
777 2012-02-27  Stuart Henderson  <shenders@gcc.gnu.org>
778
779         * ifcvt.c (noce_get_condition): Check condition variable is not
780         small_register_classes_for_mode_p before accepting.
781
782 2012-02-27  Uros Bizjak  <ubizjak@gmail.com>
783
784         * config/i386/i386.md (*movabs<mode>_1): Fix operand 1 constraints.
785
786 2012-02-27  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
787
788         Revert:
789         2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
790         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
791         tuning parameters.
792         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
793
794 2012-02-27  Oleg Endo  <olegendo@gcc.gnu.org>
795
796         * config/sh/sh.h: Delete dead GO_IF_LEGITIMATE_INDEX macro.
797
798 2012-02-26  Oleg Endo  <olegendo@gcc.gnu.org>
799
800         * config/sh/predicates.md: Remove blank lines.
801         * config/sh/sh.c: Fix typos in comments.
802         * config/sh/constraints.md: Likewise.
803         * config/sh/sh.md: Remove blank lines.
804         Fix typos in comments.  Use ;; as comment characters.
805
806 2012-02-26  Walter Lee  <walt@tilera.com>
807
808         * config/tilegx/tilegx.c (match_pcrel_step2): Fix instruction pattern.
809         (replace_mov_pcrel_step2): Ditto.
810
811 2012-02-25  Alexandre Oliva  <aoliva@redhat.com>
812
813         PR debug/52001
814         * alias.c (refs_newer_value_cb, refs_newer_value_p): New.
815         (get_addr): Walk canonical value's locs.  Avoid returning VALUEs
816         and locs that reference values newer than the non-canonical value
817         at hand.  Return the canonical value as a worst case.
818         (memrefs_conflict_p): Walk canonical value's locs.
819
820         PR debug/52001
821         * cselib.c (preserve_only_constants): Rename to...
822         (preserve_constants_and_equivs): ... this.  Split out...
823         (invariant_or_equiv_p): ... this.  Preserve plus expressions
824         of other preserved expressions too.
825         (cselib_reset_table): Adjust.
826         * var-tracking.c (reverse_op): Use canonical value to build
827         reverse operation.
828
829 2012-02-23  Kai Tietz  <ktietz@redhat.com>
830
831         * config/i386/i386.c (ix86_delegitimize_address): Handle
832         UNSPEC_PCREL plus displacement.
833
834 2012-02-24  Georg-Johann Lay  <avr@gjlay.de>
835
836         PR target/52261
837         * config/avr/avr.c (avr_out_movhi_mr_r_xmega): Use base
838         to test for unusedness in st X addressing.
839
840 2012-02-24  Richard Guenther  <rguenther@suse.de>
841
842         PR middle-end/52361
843         * gimple.c (walk_gimple_op): Use predicates with less redundant tests.
844         (is_gimple_reg_type): Move inline ...
845         * gimple.h (is_gimple_reg_type): ... here.
846
847 2012-02-24  Richard Guenther  <rguenther@suse.de>
848
849         PR middle-end/52361
850         * passes.c (execute_function_todo): When verifying SSA form
851         verify gimple form first.
852         * tree-ssa.c (verify_ssa): Do not verify gimple form here.
853
854 2012-02-24  Richard Guenther  <rguenther@suse.de>
855
856         PR middle-end/52355
857         * fold-const.c (fold_addr_of_array_ref_difference): New function.
858         (fold_binary_loc): Use it to extend the existing &a[i] - &a[j] folding.
859
860 2012-02-13  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
861
862         * tree-if-conv (predicate_scalar_phi): Commentary typo fix.
863
864 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
865
866         * tree-phinodes.c (make_phi_node): Mark static.
867         * tree-flow.h (make_phi_node): Remove extern decl.
868         * doc/gimple.texi (make_phi_node): Remove documentation.
869
870 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
871
872         * tree-into-ssa (update_ssa): Avoid trailing whitespace in dump_file.
873         * tree-ssa-sccvn.c (print_scc): Ditto.
874
875 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
876
877         * doc/passes.texi (Full redundancy elimination): Fix typo.
878
879 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
880
881         * doc/invoke.texi (-fdse, -fdce): Remove duplicate entries.
882
883 2012-02-23  Eric Botcazou  <ebotcazou@adacore.com>
884
885         PR bootstrap/52287
886         * haifa-sched.c (rank_for_schedule): Stabilize sort for debug insns.
887
888 2012-02-23  Uros Bizjak  <ubizjak@gmail.com>
889
890         PR c/52290
891         * c-decl.c (start_function): Exit early if decl1 is not FUNTION_DECL.
892
893 2012-02-23  Georg-Johann Lay  <avr@gjlay.de>
894
895         * config/avr/avr.md (code_stdname): Add ior, xor.
896         (xior): New code iterator.
897         (*<code_stdname><mode>qi.byte0): Use xior instead of ior.
898         (*<code_stdname><mode>qi.byte1-3): Ditto.
899
900 2012-02-23  Jakub Jelinek  <jakub@redhat.com>
901
902         PR tree-optimization/52019
903         * ipa-split.c (find_return_bb, find_retval, visit_bb): Ignore
904         CLOBBER stmts.
905
906 2012-02-23  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
907
908         * acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of
909         HAVE_INITFINI_ARRAY to work around namespace pollution in
910         certain versions of newlib system headers.
911         * config.in: Regenerate.
912         * configure: Regenerate.
913         * config/initfini-array.h: Use HAVE_INITFINI_ARRAY_SUPPORT
914         instead of HAVE_INITFINI_ARRAY.
915
916 2012-02-22  Uros Bizjak  <ubizjak@gmail.com>
917
918         PR target/52330
919         * config/i386/i386.c (ix86_print_operand) <case 'H'>: Error out if x
920         is not offsettable memory reference.
921
922 2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
923
924         PR target/18145
925         * config/avr/avr.c (avr_asm_output_aligned_decl_common): Skip
926         setting avr_need_clear_bss_p for __gnu_lto* symbols.
927
928 2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
929
930         * config/avr/avr.h (avr_accumulate_outgoing_args): Return int.
931         * config/avr/avr.c (avr_accumulate_outgoing_args): Return int.
932
933 2012-02-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
934
935         * configure.ac (LIB_TLS_SPEC): Enforce use of alternate thread
936         library on Solaris 8 even without TLS support.
937         * configure: Regenerate.
938
939 2012-02-22  Richard Guenther  <rguenther@suse.de>
940
941         PR middle-end/52329
942         * gimple-fold.c (fold_stmt_1): Also canonicalize ADDR_EXPRs
943         for GIMPLE_DEBUG stmts.
944
945 2012-02-22  Martin Jambor  <mjambor@suse.cz>
946
947         PR middle-end/51782
948         * emit-rtl.c (set_mem_attributes_minus_bitpos): Set address space
949         according to the base object.
950
951 2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
952
953         PR rtl-optimization/50063
954         * config/avr/avr.md (movhi_sp_r): Handle -1 (unknown IRQ state)
955         and 2 (8-bit SP) in operand 2.
956         * config/avr/avr.c (avr_prologue_setup_frame): Adjust prologue
957         setup to use movhi_sp_r instead of vanilla move to write SP.
958         Adjust REG_CFA notes to superseed unspec.
959         (expand_epilogue): Adjust epilogue setup to use movhi_sp_r instead
960         of vanilla move.
961         As function body might contain CLI or SEI: Use irq_state 0 (IRQ
962         known to be off) only with TARGET_NO_INTERRUPTS. Never use
963         irq_state 1 (IRQ known to be on) here.
964
965 2012-02-21  Bernd Schmidt  <bernds@codesourcery.com>
966
967         * ira.c (check_allocation): Use REG_WORDS_BIG_ENDIAN, not
968         WORDS_BIG_ENDIAN.
969         * ira-color.c (setup_profitable_hard_regs, check_hard_reg_p,
970         assign_hard_reg): Likewise.
971
972 2012-02-21  Georg-Johann Lay  <avr@gjlay.de>
973
974         * config/avr/avr.md (neghi2): Remove "!d,0" alternative. Tweak "r,0".
975
976 2012-02-21  Georg-Johann Lay  <avr@gjlay.de>
977
978         * config/avr/avr.md
979         (*dec-and-branchhi!=-1.d.clobber): New text peephole.
980         (*dec-and-branchhi!=-1.l.clobber): New text peephole.
981
982 2012-02-21  Georg-Johann Lay  <avr@gjlay.de>
983
984         * config/avr/avr-protos.h (avr_accumulate_outgoing_args): Move
985         prototype from here to...
986         * config/avr/avr.h: ...here.
987
988 2012-02-21  Richard Earnshaw  <rearnsha@arm.com>
989
990         PR target/52294
991         * thumb2.md (thumb2_shiftsi3_short): Split register and
992         immediate shifts.  For register shifts tie operands 0 and 1.
993         (peephole2 for above): Check that register-controlled shifts
994         have suitably tied operands.
995
996 2012-02-21  Quentin Neill  <quentin.neill@amd.com>
997
998         PR target/52137
999         * config/i386/bdver1.md (bdver1_call, bdver1_push,
1000         bdver1_pop, bdver1_leave, bdver1_lea, bdver1_imul_DI, bdver1_imul,
1001         bdver1_imul_mem_DI, bdver1_imul_mem, bdver1_idiv, bdver1_idiv_mem,
1002         bdver1_str, bdver1_idirect, bdver1_ivector, bdver1_idirect_loadmov,
1003         bdver1_idirect_load, bdver1_ivector_load, bdver1_idirect_movstore,
1004         bdver1_idirect_both, bdver1_ivector_both, bdver1_idirect_store,
1005         bdver1_ivector_store, bdver1_fldxf, bdver1_fld, bdver1_fstxf,
1006         bdver1_fst, bdver1_fist, bdver1_fmov_bdver1, bdver1_fadd_load,
1007         bdver1_fadd, bdver1_fmul_load, bdver1_fmul, bdver1_fsgn,
1008         bdver1_fdiv_load, bdver1_fdiv, bdver1_fpspc_load, bdver1_fpspc,
1009         bdver1_fcmov_load, bdver1_fcmov, bdver1_fcomi_load,
1010         bdver1_fcomi, bdver1_fcom_load, bdver1_fcom,
1011         bdver1_fxch, bdver1_ssevector_avx128_unaligned_load,
1012         bdver1_ssevector_avx256_unaligned_load,
1013         bdver1_ssevector_sse128_unaligned_load,
1014         bdver1_ssevector_avx128_load, bdver1_ssevector_avx256_load,
1015         bdver1_ssevector_sse128_load, bdver1_ssescalar_movq_load,
1016         bdver1_ssescalar_vmovss_load, bdver1_ssescalar_sse128_load,
1017         bdver1_mmxsse_load, bdver1_sse_store_avx256, bdver1_sse_store,
1018         bdver1_mmxsse_store_short, bdver1_ssevector_avx256,
1019         bdver1_movss_movsd, bdver1_mmxssemov, bdver1_sselog_load_256,
1020         bdver1_sselog_256, bdver1_sselog_load, bdver1_sselog,
1021         bdver1_ssecmp_load, bdver1_ssecmp, bdver1_ssecomi_load,
1022         bdver1_ssecomi, bdver1_vcvtX2Y_avx256_load, bdver1_vcvtX2Y_avx256,
1023         bdver1_ssecvt_cvtss2sd_load, bdver1_ssecvt_cvtss2sd,
1024         bdver1_sseicvt_cvtsi2sd_load, bdver1_sseicvt_cvtsi2sd,
1025         bdver1_ssecvt_cvtpd2ps_load, bdver1_ssecvt_cvtpd2ps,
1026         bdver1_ssecvt_cvtdq2ps_load, bdver1_ssecvt_cvtdq2ps,
1027         bdver1_ssecvt_cvtdq2pd_load, bdver1_ssecvt_cvtdq2pd,
1028         bdver1_ssecvt_cvtps2pd_load, bdver1_ssecvt_cvtps2pd,
1029         bdver1_ssecvt_cvtsX2si_load, bdver1_ssecvt_cvtsX2si,
1030         bdver1_ssecvt_cvtpd2pi_load, bdver1_ssecvt_cvtpd2pi,
1031         bdver1_ssecvt_cvtpd2dq_load, bdver1_ssecvt_cvtpd2dq,
1032         bdver1_ssecvt_cvtps2pi_load, bdver1_ssecvt_cvtps2pi,
1033         bdver1_ssemuladd_load_256, bdver1_ssemuladd_256,
1034         bdver1_ssemuladd_load, bdver1_ssemuladd, bdver1_sseimul_load,
1035         bdver1_sseimul, bdver1_sseiadd_load, bdver1_sseiadd,
1036         bdver1_ssediv_double_load_256, bdver1_ssediv_double_256,
1037         bdver1_ssediv_single_load_256, bdver1_ssediv_single_256,
1038         bdver1_ssediv_double_load, bdver1_ssediv_double,
1039         bdver1_ssediv_single_load, bdver1_ssediv_single, bdver1_sseins):
1040         Add "bdver2" attribute.
1041
1042 2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1043
1044         * config/s390/s390.c (s390_option_override): Make -mhard-dfp the
1045         default if possible and not specified otherwise.
1046
1047 2012-02-21  Richard Guenther  <rguenther@suse.de>
1048
1049         PR middle-end/52314
1050         * gimplify.c (create_tmp_from_val): Use the main variant type
1051         for the type of the temporary we create.
1052
1053 2012-02-21  Richard Guenther  <rguenther@suse.de>
1054
1055         PR tree-optimization/52324
1056         * gimplify.c (gimplify_expr): When re-gimplifying expressions
1057         do not gimplify a MEM_REF address operand if it is already
1058         in suitable form.
1059
1060 2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1061
1062         * config/s390/s390.md ("fixuns_trunc<mode>si2"): Replace
1063         TARGET_HARD_FLOAT with TARGET_HARD_DFP.
1064
1065 2012-02-21  Richard Guenther  <rguenther@suse.de>
1066
1067         * tree-vect-stmts.c (vectorizable_load): Use pre-computed
1068         nested_in_vect_loop.
1069
1070 2012-02-21  Jakub Jelinek  <jakub@redhat.com>
1071
1072         PR tree-optimization/52318
1073         * gimple-fold.c (gimplify_and_update_call_from_tree): Add
1074         vdef also to non-pure/const call stmts in the sequence.
1075
1076 2012-02-20  David S. Miller  <davem@davemloft.net>
1077
1078         * config/sparc/sparc.md (load_pcrel_sym<P:mode>): Explain why we
1079         don't use the "rd %pc" instruction on v9 for PIC register loads.
1080
1081 2012-02-20  Aldy Hernandez  <aldyh@redhat.com>
1082
1083         PR middle-end/52141
1084         * trans-mem.c (ipa_tm_scan_irr_block): Error out on GIMPLE_ASM's
1085         in a transaction safe function.
1086
1087 2012-02-20  Kai Tietz  <ktietz@redhat.com>
1088
1089         PR target/52238
1090         * stor-layout.c (place_field): Handle desired_align for
1091         ms-bitfields, too.
1092
1093 2012-02-20  Richard Guenther  <rguenther@suse.de>
1094
1095         PR tree-optimization/52298
1096         * tree-vect-stmts.c (vectorizable_store): Properly use
1097         STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
1098         outer loops.
1099         (vectorizable_load): Likewise.
1100         * tree-vect-data-refs.c (vect_analyze_data_ref_access):
1101         Access DR_STEP after ensuring it is not NULL.
1102
1103 2012-02-20  Jakub Jelinek  <jakub@redhat.com>
1104
1105         PR tree-optimization/52286
1106         * fold-const.c (fold_binary_loc): For (X & C1) | C2
1107         optimization use double_int_to_tree instead of build_int_cst_wide,
1108         rewrite to use double_int vars.
1109
1110 2012-02-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1111
1112         PR target/50166
1113         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Require gcc_SUN_LD_VERSION.
1114         Define _start.
1115         Remove -e 0 from $gcc_cv_ld invocation.
1116         Only use __GLIBC_PREREQ if defined.
1117         Enable on Solaris since Solaris 8 patch.
1118         (gcc_SUN_LD_VERSION): New macro.
1119         * configure.ac (ld_ver) <*-*-solaris2*>: Refer to
1120         gcc_SUN_LD_VERSION for version number format.
1121         * configure: Regenerate.
1122         * varasm.c (get_elf_initfini_array_priority_section): Set
1123         SECTION_NOTYPE for non-default priority.
1124         Use get_section instead of get_unnamed_section to emit
1125         .init_array/.fini_array with default priority.
1126
1127 2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>
1128
1129         * config/mips/mips.c (mips_need_mips16_rdhwr_p): New variable.
1130         (mips_get_tp): Set it.  Record that __mips16_rdhwr binds locally.
1131         (mips_start_unique_function, mips_output_mips16_rdhwr)
1132         (mips_code_end): New functions.
1133         (TARGET_ASM_CODE_END): Define.
1134
1135 2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>
1136
1137         * config/mips/mips.c (mips16_build_call_stub): Add CFI information
1138         to stubs with non-sibling calls.
1139
1140 2012-02-18  Sandra Loosemore  <sandra@codesourcery.com>
1141
1142         * doc/invoke.texi (-fira-* options): Copy-edit.
1143         (ira-* parameters): Copy-edit.
1144
1145 2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>
1146
1147         * doc/invoke.texi: Minor copy-edits to bring into conformance with
1148         GCC coding conventions.
1149
1150 2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>
1151
1152         * doc/invoke.texi: Consistently hyphenate "big-endian"/"little-endian"
1153         when used as adjectives.
1154
1155 2012-02-16  Sandra Loosemore  <sandra@codesourcery.com>
1156
1157         * doc/invoke.texi: Clean up "that"/"which" confusion.
1158
1159 2012-02-17  Steven Bosscher  <steven@gcc.gnu.org>
1160
1161         * system.h: Poison SMALL_REGISTER_CLASSES
1162         * config/rl78/rl78.h: Replace SMALL_REGISTER_CLASSES with hook.
1163         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES.
1164
1165 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
1166
1167         PR tree-optimization/52285
1168         * tree-tailcall.c (find_tail_calls): Ignore gimple_clobber_p stmts
1169         when deciding if a call is a tail call or tail recursion.
1170
1171 2012-02-16  Kai Tietz  <ktietz@redhat.com>
1172
1173         * config/i386/i386.c (legitimate_pic_address_disp_p): Allow
1174         interger-constant displacement for UNSPEC_PCREL.
1175
1176 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
1177
1178         PR rtl-optimization/52208
1179         * ira-costs.c (scan_one_insn): Don't decrease mem_cost
1180         for MEMs with REG_EQUIV, if the MEM isn't general_operand.
1181
1182         PR tree-optimization/52255
1183         * tree-vect-loop-manip.c (slpeel_tree_peel_loop_to_edge): If
1184         loop->header has virtual PHI, but exit_e->dest doesn't, add
1185         virtual PHI to exit_e->dest and adjust all uses after the loop.
1186
1187         PR debug/52260
1188         * dwarf2out.c (copy_decls_walk): Fill in *slot before traversing
1189         children with clone_tree_hash, not after it.
1190
1191 2012-02-16  Iain Sandoe  <iains@gcc.gnu.org>
1192
1193         * config/darwin.h (ASM_OUTPUT_LABELREF): Add user label prefix for
1194         extended identifiers.
1195
1196 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
1197
1198         PR middle-end/51929
1199         * cgraphunit.c (verify_edge_corresponds_to_fndecl): If node is
1200         a same_body_alias, also test whether e->callee isn't a former
1201         or current clone of the decl this is a same body alias of.
1202
1203         PR translation/52264
1204         * cgraphunit.c (verify_cgraph_node): Fix a typo.
1205
1206 2012-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1207
1208         * doc/invoke.texi: Clean up "n-bit/byte/word" modifiers.
1209
1210 2012-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>
1211
1212         PR target/52199
1213         * config/rs6000/rs6000.c (rs6000_expand_vector_init): Use
1214         force_reg instead of copy_to_reg for better optimization.  Force
1215         non-register or memory operands into a register.
1216
1217 2012-02-15  Andrew MacLeod  <amacleod@redhat.com>
1218
1219         * extend.texi: Reserve upper bits of memory model for future use.
1220
1221 2012-01-15  Georg-Johann Lay  <avr@gjlay.de>
1222             Anatoly Sokolov <aesok@post.ru>
1223             Eric Weddington <eric.weddington@atmel.com>
1224
1225         PR target/52261
1226         * config/avr/avr-devices.c (avr_arch_types): Add avrxmega2,
1227         avrxmega4, avrxmega5, avrxmega6, avrxmega7.
1228         Rewrite initializers for .macro.
1229         * config/avr/avr-mcus.def (AVR_MCU): Add known MCUs:
1230         avrxmega2: atxmega16a4, atxmega16d4, atxmega16x1, atxmega32a4
1231         atxmega32d4, atxmega32x1.
1232         avrxmega4: atxmega64a3, atxmega64d3.
1233         avrxmega5: atxmega64a1, atxmega64a1u.
1234         avrxmega6: atxmega128a3, atxmega128d3, atxmega192a3, atxmega192d3,
1235         atxmega256a3, atxmega256a3b, atxmega256a3bu, atxmega256d3.
1236         avrxmega7: atxmega128a1, atxmega128a1u.
1237         * config/avr/avr.h (enum avr_arch): Add: ARCH_AVRXMEGA2,
1238         ARCH_AVRXMEGA4, ARCH_AVRXMEGA5, ARCH_AVRXMEGA6, ARCH_AVRXMEGA7.
1239         (struct base_arch_s): Rename reserved to xmega_p.
1240         Rename reserved2 to have_rampd.
1241         (AVR_XMEGA): New define.
1242         (AVR_HAVE_RAMPD, AVR_HAVE_RAMPX, AVR_HAVE_RAMPY): New defines.
1243         (AVR_HAVE_RAMPZ): Change definition to fit xmega.
1244         * config/avr/predicates.md (io_address_operand): Take into
1245         account SFR offset.
1246         (low_io_address_operand): Ditto.
1247         (high_io_address_operand): Ditto.
1248         * config/avr/avr.md (isa): Add alternatives no_xmega, xmega.
1249         (enabled, movhi_sp_r): Use them.
1250         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use
1251         cpp_define_formatted to built-in define __AVR_ARCH__.
1252         (__AVR_XMEGA__): New built-in define.
1253         (__AVR_HAVE_RAMPD__): New built-in define.
1254         (__AVR_HAVE_RAMPX__): New built-in define.
1255         (__AVR_HAVE_RAMPY__): New built-in define.
1256         (__AVR_HAVE_RAMPZ__): Change condition when to built-in define it.
1257
1258         * config/avr/avr.c (avr_addr_t): Add ccp, rampd, rampx, rampy.
1259         (avr_option_override): Initialize them.
1260         (sreg_rtx, rampd_rtx, rampx_rtx, rampy_rtx): New GTY rtx.
1261         (avr_init_expanders): Initialize them. No more block several calls.
1262         (emit_push_sfr): New static function.
1263         (avr_prologue_setup_frame): Use it to push SREG, RAMPD/X/Y/Z as needed.
1264         Handle AVR_XMEGA.
1265         (expand_epilogue): Handle AVR_XMEGA. Pop RAMPD/X/Y/Z as needed.
1266         (avr_print_operand): Print addreeses as symbols for
1267         RAMPX, RAMPY, RAMPD, CCP.
1268         (output_movhi): Handle AVR_XMEGA when writing to SP.
1269         (avr_out_movhi_mr_r_xmega): New static function.
1270         (out_movhi_mr_r): Forward to avr_out_movhi_mr_r_xmega for AVR_XMEGA.
1271         (avr_file_start): Print symbol defines for __RAMPX__,  __RAMPY__,
1272         __RAMPD__,  __CCP__ as needed.
1273
1274         * config/avr/multilib.h: Regenerate.
1275         * config/avr/t-multilib: Regenerate.
1276         * config/avr/avr-tables.opt: Regenerate.
1277
1278 2012-02-15  Tobias Grosser <grosser@fim.uni-passau.de>
1279
1280         PR tree-optimization/50561
1281         * graphite-flattening.c (lst_project_loop): Do not
1282         remove old scattering dimensions after flattening.
1283         (lst_do_flatten): Likewise.
1284
1285 2012-02-15  Georg-Johann Lay  <avr@gjlay.de>
1286
1287         * doc/extend.texi (AVR Built-in Functions): Remove doc for
1288         __builtin_avr_map8, __builtin_avr_map16.
1289         Document __builtin_avr_insert_bits.
1290
1291         * config/avr/avr.md (map_bitsqi, map_bitshi): Remove.
1292         (insert_bits): New insn.
1293         (adjust_len.map_bits): Rename to insert_bits.
1294         (UNSPEC_MAP_BITS): Rename to UNSPEC_INSERT_BITS.
1295         * avr-protos.h (avr_out_map_bits): Remove.
1296         (avr_out_insert_bits, avr_has_nibble_0xf): New.
1297         * config/avr/constraints.md (Cxf,C0f): New.
1298         * config/avr/avr.c (avr_cpu_cpp_builtins): Remove built-in
1299         defines __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.
1300         New built-in define __BUILTIN_AVR_INSERT_BITS.
1301         * config/avr/avr.c (TARGET_FOLD_BUILTIN): New define.
1302         (enum avr_builtin_id): Add AVR_BUILTIN_INSERT_BITS.
1303         (avr_move_bits): Rewrite.
1304         (avr_fold_builtin, avr_map_metric, avr_map_decompose): New static
1305         functions.
1306         (avr_map_op_t): New typedef.
1307         (avr_map_op): New static variable.
1308         (avr_out_insert_bits, avr_has_nibble_0xf): New functions.
1309         (adjust_insn_length): Handle ADJUST_LEN_INSERT_BITS.
1310         (avr_init_builtins): Add definition for __builtin_avr_insert_bits.
1311         (bdesc_3arg, avr_expand_triop_builtin): New.
1312         (avr_expand_builtin): Use them. And handle AVR_BUILTIN_INSERT_BITS.
1313         (avr_revert_map, avr_swap_map, avr_id_map, avr_sig_map): Remove.
1314         (avr_map_hamming_byte, avr_map_hamming_nonstrict): Remove.
1315         (avr_map_equal_p, avr_map_sig_p): Remove.
1316         (avr_out_swap_bits, avr_out_revert_bits, avr_out_map_bits): Remove.
1317         (bdesc_2arg): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
1318         (adjust_insn_length): Remove handling for ADJUST_LEN_MAP_BITS.
1319         (enum avr_builtin_id): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
1320         (avr_init_builtins): Remove __builtin_avr_map8, __builtin_avr_map16.
1321         (avr_expand_builtin): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
1322
1323 2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>
1324
1325         * config/c6x/c6x.md (reserve_cycles): New attribute.
1326         * config/c6x/c6x.c (c6x_sched_reorder_1): Ensure insns we predicate
1327         don't reserve functional units after the branch occurs.
1328
1329 2012-02-14  Aldy Hernandez  <aldyh@redhat.com>
1330
1331         PR middle-end/52142
1332         * ipa-inline.c (can_inline_edge_p): Do not inline tm_pure
1333         functions into non-tm_pure functions.
1334
1335 2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>
1336
1337         PR lto/52178
1338         * gimple.c (iterative_hash_gimple_type): Use RECORD_OR_UNION_TYPE_P.
1339         (iterative_hash_canonical_type): Likewise.
1340         * tree-ssa-pre.c (fini_pre): Clean up the CFG only after purging all
1341         the dead edges.
1342
1343 2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>
1344
1345         * haifa-sched.c (prune_ready_list): Ensure that if there is a
1346         sched-group insn, it either remains alone or the entire list is pruned.
1347
1348 2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>
1349
1350         * doc/install.texi (Prerequisites): Fix grammar.
1351         (Configuration): Likewise.
1352
1353 2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>
1354
1355         * doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
1356         MPC as part of GCC before describing configuring with --with-gmp etc.
1357         (Installing GCC: Configuration): --with-gmp etc. aren't needed if
1358         sources are present.
1359
1360 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
1361
1362         PR debug/51950
1363         * dwarf2out.c (clone_tree_hash): New function.
1364         (copy_decls_walk): Use it instead of clone_tree.
1365
1366 2012-02-14  Richard Guenther  <rguenther@suse.de>
1367
1368         PR tree-optimization/52244
1369         PR tree-optimization/51528
1370         * tree-sra.c (analyze_access_subtree): Only create INTEGER_TYPE
1371         replacements for integral types.
1372
1373 2012-02-14  Walter Lee  <walt@tilera.com>
1374
1375         * config.gcc: Handle tilegx and tilepro.
1376         * configure.ac (gcc_cv_as_dwarf2_debug_line): Enable test for
1377         tilegx and tilepro.
1378         Add HAVE_AS_TLS check for tilegx and tilepro.
1379         * configure: Regenerate.
1380         * doc/contrib.texi: Add Mat Hostetter and self.
1381         * doc/extend.texi (TILE-Gx Built-in Functions): New node.
1382         Document instruction intrinsics and network accessing intrinsics.
1383         (TILEPro Built-in Functions): New node.  Document instruction
1384         intrinsics and network accessing intrinsics.
1385         * doc/install.texi (Specific, tilegx-*-linux*): Document it.
1386         (Specific, tilepro-*-linux*): Likewise.
1387         * doc/invoke.texi (TILE-Gx Options): New section.
1388         (TILEPro Options): New section.
1389         * doc/md.texi (TILE-Gx): New section.
1390         (TILEPro): New section.
1391         * common/config/tilegx/tilegx-common.c: New file.
1392         * common/config/tilepro/tilepro-common.c: New file.
1393         * config/tilegx/constraints.md: New file.
1394         * config/tilegx/linux.h: New file.
1395         * config/tilegx/mul-tables.c: New file.
1396         * config/tilegx/predicates.md: New file.
1397         * config/tilegx/sync.md: New file.
1398         * config/tilegx/t-tilegx: New file.
1399         * config/tilegx/tilegx-builtins.h: New file.
1400         * config/tilegx/tilegx-c.c: New file.
1401         * config/tilegx/tilegx-generic.md: New file.
1402         * config/tilegx/tilegx-modes.def: New file.
1403         * config/tilegx/tilegx-multiply.h: New file.
1404         * config/tilegx/tilegx-protos.h: New file.
1405         * config/tilegx/tilegx.c: New file.
1406         * config/tilegx/tilegx.h: New file.
1407         * config/tilegx/tilegx.md: New file.
1408         * config/tilegx/tilegx.opt: New file.
1409         * config/tilepro/constraints.md: New file.
1410         * config/tilepro/gen-mul-tables.cc: New file.
1411         * config/tilepro/linux.h: New file.
1412         * config/tilepro/mul-tables.c: New file.
1413         * config/tilepro/predicates.md: New file.
1414         * config/tilepro/t-tilepro: New file.
1415         * config/tilepro/tilepro-builtins.h: New file.
1416         * config/tilepro/tilepro-c.c: New file.
1417         * config/tilepro/tilepro-generic.md: New file.
1418         * config/tilepro/tilepro-modes.def: New file.
1419         * config/tilepro/tilepro-multiply.h: New file.
1420         * config/tilepro/tilepro-protos.h: New file.
1421         * config/tilepro/tilepro.c: New file.
1422         * config/tilepro/tilepro.h: New file.
1423         * config/tilepro/tilepro.md: New file.
1424         * config/tilepro/tilepro.opt: New file.
1425
1426 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
1427
1428         PR tree-optimization/52210
1429         * tree-vect-slp.c (vect_get_and_check_slp_defs): Call
1430         vect_model_simple_cost with two entry vect_def_type array instead
1431         of an address of dt.
1432
1433 2012-02-14  Richard Guenther  <rguenther@suse.de>
1434
1435         PR lto/52178
1436         * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
1437         Do not stream DECL_QUALIFIER.
1438         * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.
1439         * tree.c (free_lang_data_in_decl): Free DECL_QUALIFIER.
1440         (find_decls_types_r): Do not walk DECL_QUALIFIER.
1441
1442 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
1443
1444         PR c/52181
1445         * c-decl.c (merge_decls): Copy DECL_USER_ALIGN bit from olddecl to
1446         newdecl.
1447
1448 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
1449
1450         PR bootstrap/52172
1451         * cselib.h (cselib_subst_to_values_from_insn): New prototype.
1452         * cselib.c (cselib_subst_to_values_from_insn): New function.
1453         * sched-deps.c (add_insn_mem_dependence,
1454         sched_analyze_1, sched_analyze_2): Use it.
1455
1456 2012-02-13  Jan Hubicka  <jh@suse.cz>
1457
1458         PR middle-end/52214
1459         * predict.c (predict_paths_for_bb): Fix thinko in prevoius patch.
1460
1461 2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>
1462
1463         * gcc.c (LINK_COMMAND_SPEC): Deal with -fgnu-tm.
1464         (GTM_SELF_SPECS): Define if not already defined.
1465         (driver_self_specs): Add GTM_SELF_SPECS.
1466         * config/darwin.h (LINK_COMMAND_SPEC_A): Deal with -fgnu-tm.
1467         (GTM_SELF_SPECS): Define.
1468         * config/i386/cygwin.h (GTM_SELF_SPECS): Likewise.
1469         * config/i386/mingw32.h (GTM_SELF_SPECS): Likewise.
1470
1471 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
1472
1473         * cselib.c (expand_loc): Return sp, fp, hfp or cfa base reg right
1474         away if seen.
1475
1476         * cselib.c (dump_cselib_val): Don't assume l->setting_insn is non-NULL.
1477
1478         PR middle-end/52230
1479         * omp-low.c (expand_omp_for): If a static schedule without chunk size
1480         has NULL region->cont, force fd.chunk_size to be integer_zero_node.
1481
1482 2012-02-13  Andrew MacLeod  <amacleod@redhat.com>
1483
1484         PR c/52190
1485         * doc/extend.texi : Fix another __atomic_compare_exchange typo.
1486
1487 2012-02-13  Richard Guenther  <rguenther@suse.de>
1488
1489         PR translation/52211
1490         * passes.c (enable_disable_pass): Fix typo.
1491
1492 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
1493
1494         PR middle-end/52209
1495         * expr.c (expand_expr_real_2) <case BIT_NOT_EXPR>: Only expand using
1496         XOR for reduce_bit_field if type is unsigned.
1497
1498 2012-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1499
1500         * config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): In 64-bit mode,
1501         disallow changes from SFmode to mode with different size in FP regs.
1502
1503 2012-02-12  Robert Millan  <rmh@gnu.org>
1504             Gerald Pfeifer <gerald@pfeifer.com>
1505
1506         * ginclude/stddef.h [__FreeBSD_kernel__] (__size_t): Do not define.
1507         Tweak comment.
1508
1509 2012-02-11  Richard Sandiford  <rdsandiford@googlemail.com>
1510
1511         PR rtl-optimization/52175
1512         * reorg.c (fill_slots_from_thread): Don't apply add/sub optimization
1513         to frame-related instructions.
1514
1515 2012-02-10  Jason Merrill  <jason@redhat.com>
1516
1517         PR c++/51910
1518         * tlink.c (demangled_hash_entry): Change mangled to a VEC.
1519         (demangle_new_symbols): Fill it.
1520         (scan_linker_output): Walk it.
1521         (start_tweaking): Split out from scan_linker_output.
1522         (maybe_tweak): Update sym->chosen.
1523         * Makefile.in (COLLECT2_OBJS): Add vec.o and gcc-none.o
1524
1525 2012-02-11  Jakub Jelinek  <jakub@redhat.com>
1526
1527         PR debug/52132
1528         * reg-stack.c (subst_stack_regs_in_debug_insn): Don't use get_true_reg.
1529
1530 2012-02-11  Uros Bizjak  <ubizjak@gmail.com>
1531
1532         * compare-elim.c (find_comparisons_in_bb): Eliminate only compares
1533         having the same mode as previous compare.
1534
1535 2012-02-10  Eric Botcazou  <ebotcazou@adacore.com>
1536
1537         * config/sparc/sparc.c (sparc_flat_expand_prologue): Use emit_use.
1538         * config/sparc/sparc.md (UNSPECV_GOTO): Delete.
1539         (nonlocal_goto_internal): Likewise.
1540         (nonlocal_goto): Emit a use and an indirect jump directly.
1541
1542 2012-02-10  Andrew MacLeod  <amacleod@redhat.com>
1543
1544         PR c/52190
1545         * doc/extend.texi : Update comments for __atomic_compare_exchange and
1546         __atomic_{is,always}_lock_free.
1547
1548 2012-02-10  Uros Bizjak  <ubizjak@gmail.com>
1549
1550         PR target/52146
1551         * config/i386/i386.c (ix86_legitimate_address_p): Disallow
1552         negative constant address for x32.
1553
1554 2012-02-10  Richard Henderson  <rth@redhat.com>
1555
1556         * tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
1557         * tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
1558         for GIMPLE_TRANSACTION.  Tidy if's into a switch.
1559
1560 2012-02-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1561             Ira Rosen  <irar@il.ibm.com>
1562
1563         PR tree-optimization/50031
1564         * targhooks.c (default_builtin_vectorization_cost): Handle
1565         vec_promote_demote.
1566         * target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
1567         * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
1568         all types of reduction and pattern statements.
1569         (vect_estimate_min_profitable_iters): Likewise.
1570         * tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
1571         (vect_get_load_cost): Use vec_perm for permutations; add dump logic
1572         for explicit realigns.
1573         (vectorizable_conversion): Call vect_model_promotion_demotion_cost.
1574         * config/spu/spu.c (spu_builtin_vectorization_cost): Handle
1575         vec_promote_demote.
1576         * config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
1577         * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
1578         vec_perm for VSX and handle vec_promote_demote.
1579
1580 2012-02-10  Jakub Jelinek  <jakub@redhat.com>
1581
1582         PR middle-end/52177
1583         * builtins.c (fold_builtin_atomic_always_lock_free,
1584         expand_builtin_atomic_always_lock_free,
1585         fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
1586         Return and/or test boolean_true_node/boolean_false_node instead of
1587         integer_one_node/integer_zero_node.
1588
1589 2012-02-10  Jan Hubicka  <jh@suse.cz>
1590
1591         PR middle-end/48600
1592         * predict.c (predict_paths_for_bb): Prevent looping.
1593         (predict_paths_leading_to_edge, predict_paths_leading_to): Update.
1594
1595 2012-02-10  Roman Zhuykov  <zhroma@ispras.ru>
1596
1597         * config/arm/arm.c (output_move_double): In one case properly
1598         count number of instructions that will be emitted.
1599
1600 2012-02-10  Richard Guenther  <rguenther@suse.de>
1601
1602         PR translation/52193
1603         * cgraphunit.c (cgraph_mark_functions_to_output): Fix typo.
1604
1605 2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>
1606
1607         PR middle-end/52140
1608         * dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.
1609
1610 2012-02-09  Jakub Jelinek  <jakub@redhat.com>
1611
1612         PR debug/52165
1613         * var-tracking.c (emit_note_insn_var_location): If
1614         EMIT_NOTE_BEFORE_INSN and insn is NOTE_INSN_CALL_ARG_LOCATION,
1615         emit it before next non-NOTE_INSN_CALL_ARG_LOCATION
1616         non-NOTE_DURING_CALL_P insn.
1617
1618 2012-02-09  Bin Cheng  <bin.cheng@arm.com>
1619
1620         PR middle-end/51867
1621         * builtins.c (expand_builtin): Don't check DECL_ASSEMBLER_NAME_SET_P.
1622
1623 2012-02-08  Magnus Granberg  <zorry@gentoo.org>
1624
1625         PR driver/48524
1626         * gcc.c (switch_matches) Support switches with separated form,
1627         -D and -U.
1628
1629 2012-02-08  Georg-Johann Lay  <avr@gjlay.de>
1630
1631         * config/avr/avr.md (SREG_ADDR): Remove constant definition.
1632         (SP_ADDR): Ditto.
1633         (RAMPZ_ADDR): Ditto.
1634         * config/avr/avr.c (avr_addr_t): New typedef.
1635         (avr_addr): New struct to hold RAM address of SPL, SPH, RAMPZ, SREG.
1636         (avr_init_expanders): Initialize it.
1637         (expand_prologue): Use avr_addr instead of RAMPZ_ADDR, SP_ADDR,
1638         SREG_ADDR.
1639         (expand_epilogue): Ditto.
1640         (avr_print_operand): Ditto.
1641         (avr_file_start): Ditto.
1642         (avr_emit_movmemhi): Ditto.
1643
1644 2012-02-08  Richard Guenther  <rguenther@suse.de>
1645
1646         PR tree-optimization/46886
1647         * tree-flow.h (do_while_loop_p): Declare.
1648         * tree-ssa-loop-ch.c (do_while_loop_p): Export.
1649         * tree-parloops.c (parallelize_loops): Only parallelize do-while loops.
1650
1651 2012-02-08  Andrew MacLeod  <amacleod@redhat.com>
1652
1653         * optabs.c (expand_atomic_load): Do not assume compare_and_swap will
1654         always succeed for integers larger than a native word.
1655
1656 2012-02-08  Richard Guenther  <rguenther@suse.de>
1657
1658         PR rtl-optimization/52170
1659         * simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
1660         properly handle integer vector modes.
1661
1662 2012-02-08  Jakub Jelinek  <jakub@redhat.com>
1663
1664         PR gcov-profile/52150
1665         * coverage.c: Include target.h.
1666         (build_var): Call targetm.strip_name_encoding on the assembler name.
1667         Change one _ into . or $ if the target allows it.
1668         * Makefile.in (coverage.o): Depend on $(TARGET_H).
1669
1670         PR rtl-optimization/52139
1671         * cfgrtl.c (cfg_layout_merge_blocks): If BB_END
1672         is a BARRIER after emit_insn_after_noloc, move BB_END
1673         to the last non-BARRIER insn before it.
1674
1675 2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>
1676
1677         PR middle-end/24306
1678         * config/mips/mips.c (mips_std_gimplify_va_arg_expr): New function.
1679         (mips_gimplify_va_arg_expr): Call it instead of
1680         std_gimplify_va_arg_expr.
1681
1682 2012-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
1683
1684         * config/rs6000/rs6000.c (rs6000_trampoline_init): Fix error
1685         message for -mno-pointers-to-nested-function.
1686
1687 2012-02-07  Eric Botcazou  <ebotcazou@adacore.com>
1688
1689         PR middle-end/51994
1690         * expr.c (get_inner_reference): If there is an offset, add a negative
1691         bit position to it (if any).
1692
1693 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
1694
1695         PR rtl-optimization/52060
1696         * combine.c (try_combine): Add i0src_copy and i0src_copy2 variables,
1697         copy i1src to i1src_copy whenever added_sets_2 && i1_feeds_i2_n already
1698         before i1dest -> i1src substitution in newpat, copy i0src to i0src_copy
1699         and/or i0src_copy2 when needed.
1700
1701 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
1702
1703         * gcc.c (main): Don't look for lto-wrapper or lto-wrapper
1704         or LTOPLUGINSONAME if have_c.
1705
1706         * config/freebsd-spec.h: Add comment about what macros can be defined
1707         in this header.
1708         (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
1709         * config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
1710         here instead.
1711
1712 2012-02-07  Richard Guenther  <rguenther@suse.de>
1713
1714         * gimple-pretty-print.c (dump_gimple_phi): Avoid excessive
1715         newline in -alias dumps.
1716
1717 2012-02-07  Kai Tietz  <ktietz@redhat.com>
1718             Dave Korn  <dave.korn.cygwin@gmail.com>
1719
1720         PR target/40068
1721         * config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition):
1722         Take care that typinfo gets dllexport-attribute.
1723
1724 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
1725
1726         PR middle-end/52074
1727         * expr.c (expand_expr_addr_expr_1): For CONSTANT_CLASS_P or CONST_DECL
1728         if modifier < EXPAND_SUM call force_operand on the result.
1729
1730 2012-02-07  Joern Rennecke  <joern.rennecke@embecosm.com>
1731
1732         * config/epiphany/epiphany.h (ASM_DECLARE_FUNCTION_SIZE): Redefine,
1733         adding __forwarder_dst__ prefix if a forwarder_section attribute is
1734         present.
1735         (epiphany_function_type): Replace types for specific interrupts with
1736         EPIPHANY_FUNCTION_INTERRUPT.
1737         (EPIPHANY_INTERRUPT_P): Update.
1738         * config/epiphany/epiphany.c (epiphany_handle_forwarder_attribute):
1739         New static function.
1740         (epiphany_attribute_table) <interrupt>: min_len is 0, max_len is 9.
1741         <disinterrupt>: Affects type identity.
1742         (epiphany_handle_interrupt_attribute): Handle variable number of
1743         arguments.
1744         (epiphany_compute_function_type): Update for new
1745         epiphany_function_type definition.
1746         (epiphany_expand_prologue): Don't save (reg:DI GPR_0) for interrupt
1747         handlers with a longcall forwarder.
1748         (epiphany_start_function): Handle multiple interrupt arguments and/or
1749         forwarder_section attribute.
1750
1751         * config/epiphany/epiphany.h (LIB_SPEC): Link libc again after
1752         libgloss.
1753
1754 2012-02-07  Alan Modra  <amodra@gmail.com>
1755
1756         PR target/52107
1757         * config/rs6000/rs6000.c (rs6000_emit_move): Don't create DImode
1758         subregs of TFmode.
1759
1760 2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1761
1762         PR tree-optimization/50969
1763         * tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
1764         use vec_perm rather than vector_stmt.
1765         (vect_model_load_cost): Likewise.
1766         * config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
1767         vec_perm to be the same as other vector statements.
1768         * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
1769         cost of vec_perm for TARGET_VSX.
1770
1771 2012-02-06  Richard Guenther  <rguenther@suse.de>
1772
1773         PR tree-optimization/52115
1774         * tree-sra.c (access_has_replacements_p): New function.
1775         (sra_modify_assign): Use it to decide whether a use is uninitialized.
1776
1777 2012-02-06  Patrick Marlier  <patrick.marlier@gmail.com>
1778
1779         PR middle-end/52047
1780         * trans-mem.c (expand_call_tm): Add an assertion.
1781         * calls.c (flags_from_decl_or_type): Add ECF_TM_PURE to 'no vops'
1782         functions.
1783
1784 2012-02-06  Richard Guenther  <rguenther@suse.de>
1785
1786         PR tree-optimization/50955
1787         * tree-ssa-loop-ivopts.c (get_computation_cost_at): Artificially
1788         raise cost of expressions that replace an address with an
1789         expression based on a different pointer.
1790
1791 2012-02-06  Jakub Jelinek  <jakub@redhat.com>
1792
1793         PR target/52129
1794         * calls.c (mem_overlaps_already_clobbered_arg_p): If val is
1795         CONST_INT_P, subtract resp. add crtl->args.pretend_args_size to it.
1796
1797 2012-02-06  Jonathan Wakely  <jwakely.gcc@gmail.com>
1798
1799         PR c++/48680
1800         * doc/invoke.texi (C++ Dialect Options): Use @option markup for
1801         -Weffc++ and specify guidelines come from second edition.
1802
1803 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
1804
1805         * config/mips/mips.md (sibcall_internal, sibcall_value_internal)
1806         (sibcall_value_multiple_internal, call_split, call_internal_direct)
1807         (call_direct_split, call_value_split, call_value_internal_direct)
1808         (call_value_direct_split, call_value_multiple_split): Use jal and
1809         jal_macro attributes.
1810
1811 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
1812
1813         * reload1.c (reload_regs_reach_end_p): Replace with...
1814         (reload_reg_rtx_reaches_end_p): ...this function.
1815         (new_spill_reg_store): Update commentary.
1816         (emit_input_reload_insns): Don't clear new_spill_reg_store here.
1817         (emit_output_reload_insns): Check reload_reg_rtx_reaches_end_p
1818         before setting new_spill_reg_store.
1819         (emit_reload_insns): Use a separate loop to clear new_spill_reg_store.
1820         Use reload_reg_rtx_reaches_end_p instead of reload_regs_reach_end_p.
1821         Also use reload_reg_rtx_reaches_end_p when reading new_spill_reg_store
1822         for non-spill reload registers.
1823
1824 2012-02-05  Ira Rosen  <irar@il.ibm.com>
1825
1826         PR tree-optimization/52091
1827         * tree-vectorizer.h (vect_is_simple_use): Add an argument.
1828         (vect_is_simple_use_1): Likewise.
1829         * tree-vect-loop.c (vectorizable_reduction): Update calls
1830         to vect_is_simple_use_1 and vect_is_simple_use.
1831         (vectorizable_live_operation): Likewise.
1832         * tree-vect-patterns.c (widened_name_p,
1833         vect_recog_vector_vector_shift_pattern, check_bool_pattern): Likewise.
1834         * tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
1835         vectorizable_call, vectorizable_conversion, vectorizable_assignment,
1836         vectorizable_shift,vectorizable_operation, vectorizable_store,
1837         vectorizable_load): Likewise.
1838         (vect_is_simple_cond): Add an argument, pass it to
1839         vect_is_simple_use_1.
1840         (vectorizable_condition): Update calls to vect_is_simple_cond,
1841         vect_is_simple_use.
1842         (vect_is_simple_use): Add an argument, the statement in which
1843         OPERAND is used.  Check that if OPERAND's def stmt is a double
1844         reduction phi node, the use is a phi node too.
1845         (vect_is_simple_use_1): Add an argument, pass it to
1846         vect_is_simple_use.
1847         * tree-vect-slp.c (vect_get_and_check_slp_defs): Update a call
1848         to vect_is_simple_use.
1849
1850 2012-02-04  Jakub Jelinek  <jakub@redhat.com>
1851
1852         PR rtl-optimization/52095
1853         * modulo-sched.c (dump_insn_locator): New function.
1854         (loop_canon_p, sms_schedule): Use it.
1855
1856         PR rtl-optimization/52113
1857         * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
1858         even for decomposable shift/zext insns.
1859
1860 2012-02-03  Jakub Jelinek  <jakub@redhat.com>
1861             Zdenek Dvorak  <ook@ucw.cz>
1862
1863         PR rtl-optimization/52092
1864         * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
1865         on get_iv_value result.
1866
1867 2012-02-02  Andrew Pinski  <apinski@cavium.com>
1868
1869         PR middle-end/47982
1870         PR middle-end/43967
1871         * doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.
1872
1873 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
1874
1875         PR middle-end/48071
1876         * diagnostic.c (diagnostic_finish): Remove trailing newlines.
1877
1878 2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>
1879
1880         PR rtl-optimization/49800
1881         * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
1882         (sched_finish): Call regstat_free_n_sets_and_refs.
1883
1884 2012-02-02  Jia Liu  <proljc@gmail.com>
1885
1886         * config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
1887         than operand 2.
1888
1889 2012-02-02  Jan Hubicka  <jh@suse.cz>
1890             Tom de Vries  <tom@codesourcery.com>
1891
1892         PR middle-end/51998
1893         * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
1894         * varpool.c (varpool_analyze_pending_decls): Likewise.
1895
1896 2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
1897             Jayant R Sonar <jayant.sonar@kpitcummins.com>
1898
1899         * config.gcc: Add cr16-* support.
1900
1901         * doc/extend.texi: Document cr16 extensions.
1902         * doc/install.texi: Document cr16 install.
1903         * doc/invoke.texi: Document cr16 options.
1904         * doc/md.texi: Document cr16 constraints.
1905
1906         * common/config/cr16/cr16-common.c: New file.
1907         * config/cr16/cr16.c: New file.
1908         * config/cr16/cr16.h: New file.
1909         * config/cr16/cr16.md: New file.
1910         * config/cr16/cr16.opt: New file.
1911         * config/cr16/cr16-protos.h: New file.
1912         * config/cr16/predicates.md: New file.
1913         * config/cr16/constraints.md: New file.
1914         * config/cr16/t-cr16: New file.
1915
1916 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
1917
1918         PR target/52086
1919         * config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
1920         that operands[2] is either immediate, or q_regs_operand.
1921
1922         PR tree-optimization/52073
1923         * tree-vect-stmts.c (vect_mark_relevant): When checking uses of
1924         a pattern stmt for pattern uses, ignore uses outside of the loop.
1925
1926 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
1927
1928         * config/avr/avr.c: Resolve all AS1 and AS2 macros.
1929         * config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
1930         (OUT_AS1, OUT_AS2): Remove.
1931
1932 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
1933
1934         PR rtl-optimization/51374
1935         * combine.c (can_combine_p): Don't allow volatile_refs_p insns
1936         to cross other volatile_refs_p insns.
1937
1938 2012-02-01  Richard Guenther  <rguenther@suse.de>
1939
1940         * doc/invoke.texi (fno-inline): Clarify documentation.
1941         (finline-small-functions): Likewise.
1942         (finline-functions): Likewise.
1943         * common.opt (finline): Adjust comment and documentation.
1944         (finline-small-functions): Clarify documentation.
1945         (finline-functions): Likewise.
1946         (finline-functions-called-once): Likewise.
1947
1948 2012-02-01  Tristan Gingold  <gingold@adacore.com>
1949
1950         * c-typeck.c (composite_type): Keep mode for pointers.
1951
1952 2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>
1953
1954         * function.h (regno_reg_rtx): Adjust comment.
1955         * reginfo.c (init_reg_modes_target): Only use the previous mode
1956         if it fits within one register.  Remove MIPS comment.
1957
1958 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
1959
1960         PR bootstrap/52058
1961         * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.
1962
1963 2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1964
1965         * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
1966         to srak instruction.
1967
1968 2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1969
1970         * config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true condition.
1971
1972 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
1973
1974         PR bootstrap/52041
1975         PR bootstrap/52039
1976         PR target/51974
1977         * ipa-prop.c (detect_type_change_1): Call ao_ref_init.
1978
1979 2012-01-31  Richard Guenther  <rguenther@suse.de>
1980
1981         PR tree-optimization/51528
1982         * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
1983         assigns.
1984
1985 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
1986
1987         PR bootstrap/52041
1988         PR bootstrap/52039
1989         PR target/51974
1990         * ree.c (add_removable_extension): Change def_map argument
1991         to unsigned *, store in def_map 1 + offset into *insn_list vector
1992         instead of pointers into the vector.
1993         (find_removable_extensions): Adjust caller.
1994
1995 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
1996
1997         * config/avr/avr.md: Resolve all AS1 and AS2 macros.
1998         Transform all "* quoted-c-code" to { c-code }.
1999         Remove redundant test for "optimize" in combine patterns.
2000         Move (include "avr-dimode.md") to end of file.
2001
2002 2012-01-30  Bin Cheng  <bin.cheng@arm.com>
2003
2004         PR target/51835
2005         * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
2006         for __aeabi_d2iz/__aeabi_d2uiz with hard-float.
2007
2008 2012-01-30  Richard Guenther  <rguenther@suse.de>
2009
2010         PR tree-optimization/52028
2011         * tree-loop-distribution.c (ldist_gen): Properly update
2012         virtual SSA form.
2013
2014 2012-01-30  Jakub Jelinek  <jakub@redhat.com>
2015
2016         PR debug/52027
2017         * dwarf2out.c (dwarf2out_switch_text_section): Don't call
2018         set_cur_line_info_table if not emitting debug info.
2019
2020         PR tree-optimization/52046
2021         * tree-vect-patterns.c (check_bool_pattern): Give up if
2022         a comparison could throw.
2023
2024         PR debug/52048
2025         * tree-ssa-tail-merge.c (local_def): Ignore debug uses.
2026
2027 2012-01-30  Richard Guenther  <rguenther@suse.de>
2028
2029         PR tree-optimization/52045
2030         * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
2031         SSA form if cfgcleanup did anything.
2032
2033 2012-01-30  Richard Guenther  <rguenther@suse.de>
2034
2035         PR tree-optimization/52045
2036         * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
2037         before computing final todo.
2038
2039 2012-01-30  Richard Guenther  <rguenther@suse.de>
2040
2041         PR tree-optimization/51528
2042         * tree-sra.c (sra_modify_assign): Re-factor in preparation
2043         for PR51528 fix.
2044
2045 2012-01-30  Paolo Bonzini  <bonzini@gnu.org>
2046
2047         * df-problems.c (df_kill_notes): Check that the use refers
2048         to the note under examination.
2049
2050 2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
2051
2052         PR target/51920
2053         * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
2054         parameter and use short-lived pseudos.
2055         (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
2056         (sparc_expand_vector_init): Const-ify local variables and adjust
2057         calls to above functions.
2058
2059 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
2060
2061         * config/avr/avr.c (out_movqi_mr_r): Fix length computation.
2062
2063 2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>
2064
2065         * doc/invoke.texi: Make usage of "compile time" and
2066         "run time"/"runtime" consistent throughout the file.
2067
2068 2012-01-29  Uros Bizjak  <ubizjak@gmail.com>
2069
2070         * config/alpha/alpha.c (alpha_option_override): Default to
2071         full IEEE compliance mode for Go language.
2072
2073 2011-01-29  Tijl Coosemans  <tijl@coosemans.org>
2074
2075         * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
2076         (LINK_SSP_SPEC): Define.
2077
2078 2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2079
2080         PR target/51871
2081         * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
2082         stubs.
2083
2084 2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>
2085
2086         * doc/invoke.texi: Correct hyphenation of "floating point",
2087         "double precision", and related terminology throughout the file.
2088
2089 2012-01-28  Jakub Jelinek  <jakub@redhat.com>
2090
2091         PR target/52006
2092         * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
2093         arm_general_register_operand predicate for operand 2 instead of
2094         register_operand.
2095
2096 2012-01-27  Ian Lance Taylor  <iant@google.com>
2097
2098         PR go/47656
2099         * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
2100         * builtins.c (expand_builtin_init_trampoline): Add onstack
2101         parameter.  Change caller.
2102         (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
2103         * tree.c (build_common_builtin_nodes): Declare
2104         __builtin_init_heap_trampoline.
2105
2106 2012-01-27  Georg-Johann Lay  <avr@gjlay.de>
2107
2108         * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
2109         tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
2110         * config/avr/avr.c: Ditto.
2111         (avr_regnames): Remove because unused.
2112         * config/avr/avr.md (*cpse.ne): New peephole.
2113         (*cpse.eq): New peephole from former cpse peepholes.
2114
2115 2012-01-27  Michael Eager  <eager@eagercon.com>
2116
2117         * config/microblaze.c (microblaze_emit_compare): Correct
2118         test after pcmp instruction.
2119
2120 2012-01-27  Richard Guenther  <rguenther@suse.de>
2121
2122         PR tree-optimization/52020
2123         * tree-sra.c (sra_modify_assign): Do not transform clobbers.
2124
2125 2012-01-27  Richard Guenther  <rguenther@suse.de>
2126
2127         * ipa-pure-const.c (check_stmt): Clobbers do not make a
2128         function non-const/pure.
2129
2130 2012-01-27  Richard Guenther  <rguenther@suse.de>
2131
2132         PR tree-optimization/50444
2133         * tree-sra.c (build_ref_for_offset): Properly adjust the
2134         MEM_REF type for unaligned accesses.
2135
2136 2012-01-27  Richard Guenther  <rguenther@suse.de>
2137
2138         PR tree-optimization/50444
2139         * expr.c (mem_ref_refers_to_non_mem_p): New function.
2140         (expand_assignment): Use it.  Properly handle misaligned
2141         bases when expanding stores to component references.
2142         (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
2143         refactor that case.
2144
2145 2012-01-27  Andrey Belevantsev  <abel@ispras.ru>
2146
2147         PR middle-end/51389
2148         * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
2149         * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
2150         * tree-data-ref.c (find_data_references_in_loop): Make static.
2151         (compute_all_dependences): Change return type to bool.  Bail out
2152         for too many datarefs in a loop.  Move the hunk resetting the data
2153         dependences vector from ...
2154         (compute_data_dependences_for_loop): ... here.  Account for
2155         compute_all_dependences returning false.
2156         (compute_data_dependences_for_bb): Likewise.
2157         * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
2158         * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.
2159
2160 2012-01-27  Richard Guenther  <rguenther@suse.de>
2161
2162         PR middle-end/51959
2163         * expr.c (store_field): Use the alias-set of the scratch memory
2164         for storing to it.
2165
2166 2012-01-27  Tom de Vries  <tom@codesourcery.com>
2167
2168         PR tree-optimization/51990
2169         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
2170         WITH_SIZE_EXPR.
2171         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.
2172
2173 2012-01-27  Jakub Jelinek  <jakub@redhat.com>
2174
2175         PR debug/52001
2176         * var-tracking.c (reverse_op): Don't add any reverse operation
2177         if V already has any constant locations.
2178
2179 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
2180
2181         * doc/invoke.texi: Correct usage of "command line" (noun)
2182         vs "command-line" (adjective) throughout.
2183
2184 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
2185
2186         * doc/invoke.texi (Language Independent Options): Move
2187         -Wcoverage-mismatch blurb from here....
2188         (Warning Options): ...to here.
2189
2190 2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>
2191
2192         * config/rs6000/rs6000.c (rs6000_option_override_internal):
2193         Set rs6000_always_hint to false for 476.
2194
2195 2012-01-27  Matthias Klose  <doko@ubuntu.com>
2196
2197         * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
2198           system root.
2199         * incpath.c (add_standard_paths): Likewise.
2200
2201 2012-01-27  Richard Henderson  <rth@redhat.com>
2202
2203         * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
2204         * config/m68k/sync.md (atomic_test_and_set): Rename from
2205         sync_test_and_setqi and adjust the operands.
2206         (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
2207         and unconditionally enable.
2208
2209 2012-01-27  Richard Henderson  <rth@redhat.com>
2210
2211         * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
2212         * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
2213         (ldstub): Rename from ldstubqi.
2214         (ldstub<I24MODE>): Remove.
2215
2216 2012-01-27  Richard Henderson  <rth@redhat.com>
2217
2218         * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
2219         * c-cppbuiltin.c (cpp_atomic_builtins): Define
2220         __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
2221         * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
2222         * doc/tm.texi: Rebuild.
2223
2224 2012-01-27  Richard Henderson  <rth@redhat.com>
2225
2226         * optabs.c (gen_atomic_test_and_set): Remove default.
2227         (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.
2228
2229 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
2230
2231         PR rtl-optimization/51978
2232         * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
2233         (combine_reaching_defs): Likewise.
2234         (struct re_info): Remove.
2235         (add_removable_extension): Remove x and data arguments,
2236         add insn, insn_list and def_map.  Use the arguments directly
2237         instead of using struct re_info.
2238         (find_removable_extensions): Don't call add_removable_extension
2239         through note_stores, instead just call it with single_set
2240         result if non-NULL.
2241         (find_and_remove_re): Pass curr_cand->expr instead of
2242         PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.
2243
2244 2012-01-26  Michael Matz  <matz@suse.de>
2245
2246         PR tree-optimization/46590
2247         * cfgexpand.c: Revert last change (r183305).
2248         * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
2249         regs.
2250         * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
2251         checking for emptiness.
2252
2253 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
2254
2255         PR middle-end/51895
2256         * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
2257         non-addressable non-BLKmode base correctly.
2258
2259 2012-01-26  Michael Matz  <matz@suse.de>
2260
2261         PR tree-optimization/48794
2262         * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
2263         regions referenced from RESX/EH_DISPATCH.
2264
2265 2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2266
2267         * config/s390/s390.h: Make BRANCH_COST an option.
2268         * config/s390/s390.opt: New option -mbranch-cost.
2269
2270 2012-01-26  Richard Henderson  <rth@redhat.com>
2271
2272         Revert 2012-01-24 change:
2273         * trans-mem.c (requires_barrier): Do not instrument thread local
2274         variables and emit save/restore for them.
2275
2276 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
2277
2278         PR middle-end/51986
2279         * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
2280         for pat == 0.
2281
2282 2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
2283
2284         * config/mips/mips.c (mips_small_data_pattern_1): Don't process
2285         ASM_OPERANDS.
2286
2287 2012-01-25  Georg-Johann Lay  <avr@gjlay.de>
2288
2289         PR target/49868
2290         Rename __pgm to __flash.
2291         Rename __pgm1 to __flash1.
2292         Rename __pgm2 to __flash2.
2293         Rename __pgm3 to __flash3.
2294         Rename __pgm4 to __flash4.
2295         Rename __pgm5 to __flash5.
2296         Rename __pgmx to __memx.
2297         * doc/extend.texi (AVR Named Address Spaces)
2298         Rename address space names as indicated above.
2299         * config/avr/avr.c (avr_addrspace): Ditto.
2300
2301         * config/avr/avr-protos.h
2302         (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
2303         (avr_mem_pgm_p): Rename to avr_mem_flash_p.
2304         * config/avr/predicates.md: Ditto.
2305         * config/avr/avr.c Ditto, and
2306         (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
2307         (avr_decl_pgm_p): Rename to avr_decl_flash_p.
2308
2309         * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
2310         (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
2311         (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
2312         (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
2313         (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
2314         (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
2315         (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
2316         * config/avr/avr.c: Ditto.
2317         * config/avr/avr.md: Ditto.
2318
2319 2012-01-25  Jason Merrill  <jason@redhat.com>
2320
2321         PR c++/51992
2322         * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.
2323
2324 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
2325
2326         PR tree-optimization/51987
2327         * tree-data-ref.c (get_references_in_stmt): Handle references in
2328         non-volatile GIMPLE_ASM.
2329
2330 2012-01-25  Richard Guenther  <rguenther@suse.de>
2331
2332         * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
2333         bases are dereferenced.
2334
2335 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
2336
2337         PR rtl-optimization/48374
2338         * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.
2339
2340 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
2341
2342         * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
2343         compute_data_dependences_for_loop returns false.
2344         * tree-parloops.c (loop_parallel_p): Likewise.
2345
2346 2012-01-25  Richard Guenther  <rguenther@suse.de>
2347
2348         * tree.h (get_pointer_alignment_1): Declare.
2349         * builtins.c (get_pointer_alignment_1): New function.
2350         (get_pointer_alignment): Use it.
2351
2352 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
2353
2354         PR rtl-optimization/48308
2355         * combine.c (enum undo_kind): Add UNDO_LINKS.
2356         (struct undo): Add member l to other_contents and where.
2357         (do_SUBST_LINK): New.
2358         (SUBST_LINK): New.
2359         (try_combine): Handle LOG_LINKS for the dummy i1 case.
2360         (undo_all): Handle UNDO_LINKS.
2361
2362 2012-01-25  Richard Henderson  <rth@redhat.com>
2363
2364         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
2365         mem inputs.
2366
2367 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
2368
2369         * optabs.c (gen_atomic_test_and_set): Use each argument.
2370
2371 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
2372
2373         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
2374         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
2375         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
2376         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
2377         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
2378         TARGET_PAIRED_SINGLE_FLOAT.
2379
2380 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
2381
2382         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
2383         (in_struct, return_val): Remove MEM documentation.
2384         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
2385         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
2386         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
2387         and MEM_SCALAR.
2388         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
2389         * cfgexpand.c (add_alias_set_conflicts): Likewise.
2390         * expr.c (store_field): Likewise.
2391         * function.c (assign_stack_temp_for_type): Likewise.
2392         * ifcvt.c (noce_try_cmove_arith): Likewise.
2393         * reload1.c (reload): Likewise.
2394         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
2395         (alpha_set_memflags): Likewise.
2396         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
2397
2398 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
2399
2400         * rtl.h (true_dependence, canon_true_dependence): Remove varies
2401         parameter.
2402         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
2403         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
2404         (true_dependence_1, true_dependence, canon_true_dependence): Remove
2405         varies parameter.
2406         * cselib.c (cselib_rtx_varies_p): Delete.
2407         (cselib_invalidate_mem): Update call to canon_true_dependence.
2408         * dse.c (record_store, check_mem_read_rtx): Likewise.
2409         (scan_reads_nospill): Likewise.
2410         * cse.c (check_dependence): Likewise.
2411         (cse_rtx_varies_p): Delete.
2412         * expr.c (safe_from_p): Update call to true_dependence.
2413         * ira.c (validate_equiv_mem_from_store): Likewise.
2414         (memref_referenced_p): Likewise.
2415         * postreload-gcse.c (find_mem_conflicts): Likewise.
2416         * sched-deps.c (sched_analyze_2): Likewise.
2417         * store-motion.c (load_kills_store): Likewise.
2418         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
2419         * gcse.c (mems_conflict_for_gcse_p): Likewise.
2420         (compute_transp): Update call to canon_true_dependence.
2421
2422 2012-01-25  Richard Henderson  <rth@redhat.com>
2423
2424         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
2425         (maybe_emit_atomic_test_and_set): New.
2426         (expand_sync_lock_test_and_set): Use it.
2427         (expand_atomic_test_and_set): Likewise.
2428         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
2429         the implementation; clarify implementation defined details.
2430         * doc/md.texi (atomic_test_and_set): Document.
2431
2432 2012-01-25  Richard Henderson  <rth@redhat.com>
2433
2434         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
2435
2436 2012-01-25  Richard Henderson  <rth@redhat.com>
2437
2438         PR target/51968
2439         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
2440         to effect no-op split.
2441
2442 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
2443
2444         PR lto/51698
2445         * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
2446         (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
2447         (BT_FN_VOID_PTR_INT_SIZE): New.
2448         (BT_FN_UINT_UINT_VAR): Remove.
2449         (BT_FN_UINT32_UINT32_VAR): New.
2450         (BT_FN_DOUBLE_VPTR): Remove.
2451         (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.
2452
2453         * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
2454         (_ITM_changeTransactionMode): Same.
2455         (_ITM_memmoveRtWt): Change return type to void.
2456         (_ITM_memcpyRtWt): Same.
2457         (_ITM_memsetW): Same.
2458         (_ITM_RaRD): Change types to double.
2459         (_ITM_RD): Same.
2460         (_ITM_RaWD): Same.
2461         (_ITM_RfWD): Same.
2462
2463         * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.
2464
2465 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
2466             Patrick Marlier  <patrick.marlier@gmail.com>
2467
2468         * trans-mem.c (requires_barrier): Do not instrument thread local
2469         variables and emit save/restore for them.
2470
2471 2012-01-24  Jason Merrill  <jason@redhat.com>
2472
2473         PR c++/51812
2474         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
2475         output static aliases.
2476
2477 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
2478
2479         PR driver/47249
2480         * common.opt (-pie, -shared, pie, shared): Change from Common to
2481         Driver.
2482         * gcc.c (display_help): Display help for -pie and -shared.
2483
2484 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
2485
2486         PR target/49868
2487         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
2488         Remove note on size/offset limitation.
2489         (AVR Variable Attributes): Add example how to read data located
2490         with progmem.  Refer to named address spaces.
2491         * doc/invoke.texi (AVR Options): Fix typo.
2492
2493 2012-01-24  Richard Guenther  <rguenther@suse.de>
2494
2495         Forward-port to trunk
2496         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
2497
2498         PR middle-end/45678
2499         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
2500         op0 isn't sufficiently aligned and there is movmisalignM
2501         insn for mode, use it to load op0 into a temporary register.
2502
2503 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
2504
2505         PR target/51957
2506         * target.def (const_not_ok_for_debug_p): New hook.
2507         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
2508         documentation.
2509         * doc/tm.texi: Regenerated.
2510         * dwarf2out.c (const_ok_for_output_1): If
2511         targetm.const_not_ok_for_debug_p returns true, fail.
2512         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
2513         function.
2514         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
2515
2516 2012-01-23  Kai Tietz  <ktietz@redhat.com>
2517
2518         PR target/51900
2519         * config/i386/predicates.md (symbolic_operand): Allow
2520         UNSPEC_PCREL as PIC expression for lea.
2521         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
2522         * config/i386/i386.c (ix86_delegitimize_address): Handle
2523         UNSPEC_PCREL for none-MEM, too.
2524
2525 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
2526
2527         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
2528         (ipa_tm_create_version_alias): Same.
2529
2530 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
2531
2532         PR libitm/51830
2533         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
2534         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
2535
2536 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
2537             Patrick Marlier  <patrick.marlier@gmail.com>
2538             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
2539
2540         PR lto/51916
2541         * lto-wrapper.c (run_gcc): Pass the LTO section name to
2542         simple_object_start_read.
2543
2544 2012-01-23  Richard Guenther  <rguenther@suse.de>
2545
2546
2547         PR tree-optimization/51895
2548         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
2549         parameter decomposition into BLKmode components.
2550
2551 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
2552
2553         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
2554         fake variables for restrict-qualified pointers whose pointed-to type
2555         contains a placeholder.
2556
2557 2012-01-23  Richard Guenther  <rguenther@suse.de>
2558
2559         PR tree-optimization/51949
2560         * ipa-split.c (execute_split_functions): Do not split malloc functions.
2561
2562 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
2563
2564         PR rtl-optimization/51933
2565         * ree.c (transform_ifelse): Return true right away if dstreg is
2566         already wider or equal to cand->mode.
2567         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
2568         (make_defs_and_copies_lists): Remove defs_list and copies_list
2569         arguments, add state argument, just truncate state->work_list
2570         instead of always allocating and freeing the vector.  Assert that
2571         get_defs succeeds instead of returning 2.  Changed return type to bool.
2572         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
2573         have ext_src_mode, see if it has been modified already with the
2574         right kind of extension and has been extended before from the
2575         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
2576         just return true.  Remember the original mode in state->modified array.
2577         (combine_reaching_defs): Add state argument.  Don't allocate and
2578         free here def_list, copied_list and vec vectors, instead just
2579         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
2580         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
2581         Add state variable, clear vectors in it, initialize state.modified
2582         if needed.  Free all the vectors at the end and state.modified too.
2583         Don't skip a candidate if the extension expression has been modified.
2584
2585 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
2586
2587         PR target/47096
2588         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
2589          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
2590         (extra_options) interix.opt -> i386/interix.opt"
2591         (extra_objs):Add winnt-stubs.o
2592         * configure.ac: Add interix to target_os .comm on PE check.
2593         * configure: Regenerate.
2594         * config/interix3.h: Delete and move bits to..
2595         * config/interix.h: Delete and move bits to..
2596         * config/i386/i386-interix3.h: Delete and move bits to..
2597         * config/i386/i386-interix.h: ..here.
2598         (TARGET_CPU_DEFAULT): Remove redefinition.
2599         (TARGET_ASM_CONSTRUCTOR): Undefine.
2600         (SUBTARGET_SWITCHES): Define for ms-bitfields.
2601         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
2602         (PTRDIFF_TYPE): Define.
2603         (LONG_DOUBLE_TYPE_SIZE): Define.
2604         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
2605         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
2606         (TARGET_SECTION_TYPE_FLAGS): Define.
2607         (ASM_DECLARE_FUNCTION_NAME): Define.
2608         (ASM_OUTPUT_EXTERNAL): Define.
2609         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
2610         (ASM_OUTPUT_ALIGNED_BSS): Define.
2611         (PCC_BITFIELD_TYPE_MATTERS): Define.
2612         (USE_CONST_SECTION): Define.
2613         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
2614         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
2615         (SUPPORTS_ONE_ONLY): Remove.
2616         (I386_PE_STRIP_ENCODING): Define.
2617         * config/interix.opt: Delete and move bits to..
2618         * config/i386/interix.opt: ..here. New.
2619         (mpe-aligned-commons): Add.
2620         * config/i386/t-interix: Add copyright header.
2621         (winnt-stubs.o): Add rule.
2622
2623 2012-01-22  Jason Merrill  <jason@redhat.com>
2624
2625         PR c++/51832
2626         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
2627         for extra name aliases.
2628
2629 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
2630
2631         PR rtl-optimization/51924
2632         * ree.c (combine_set_extension): Improve debugging message.
2633         (combine_reaching_defs): Likewise.
2634         (get_defs): Rename confusingly named variable.
2635         (find_and_remove_re): Skip a candidate if the extension expression has
2636         been modified.
2637
2638 2012-01-21  Robert Millan  <rmh@gnu.org>
2639             Gerald Pfeifer  <gerald@pfeifer.com>
2640
2641         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
2642         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
2643
2644 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
2645
2646         PR tree-optimization/51914
2647         * tree-vect-stmts.c (vectorizable_conversion): For
2648         cvt_type && modifier == WIDEN, put temporary with cvt_type
2649         at the beginning of vec_dsts and set vec_dest to temporary
2650         with vectype_out.
2651
2652 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
2653
2654         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
2655
2656 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
2657
2658         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
2659         * config/rs6000/rs6000.c: Likewise.
2660
2661 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
2662
2663         PR target/51915
2664         * config/arm/arm.c (arm_count_output_move_double_insns): Call
2665         output_move_double on a copy of operands array.
2666
2667 2012-01-20  Cary Coutant  <ccoutant@google.com>
2668             Dodji Seketeli  <dodji@redhat.com>
2669
2670         PR debug/45682
2671         * dwarf2out.c (copy_declaration_context): Return ref to parent
2672         of declaration DIE, if necessary.
2673         (remove_child_or_replace_with_skeleton): Add new parameter; update
2674         caller.  Place skeleton DIE under parent DIE of original declaration.
2675         Move call to copy_declaration_context to here ...
2676         (break_out_comdat_types): ... from here.
2677
2678 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2679
2680         PR rtl-optimization/51856
2681         * reload.c (find_reloads_subreg_address): Set the address_reloaded
2682         flag to reloaded.
2683
2684 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
2685
2686         PR target/51819
2687         * config/arm/arm.c (arm_print_operand): Correct output of alignment
2688         hints for neon loads and stores.
2689
2690 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
2691
2692         PR target/49868
2693         PR target/50887
2694         * doc/extend.texi (Named Address Spaces): Split into subsections.
2695         (AVR Named Address Spaces): New subsection.
2696         (M32C Named Address Spaces): New subsection.
2697         (RL78 Named Address Spaces): New subsection.
2698         (SPU Named Address Spaces): New subsection.
2699         (Variable Attributes): New anchor "AVR Variable Attributes".
2700         (AVR Variable Attributes): Rewrite and avoid wording
2701         "address space" in this context.
2702         * doc/invoke.texi (AVR Options): Rewrite and add documentation
2703         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
2704         (AVR Built-in Macros): New subsubsection therein.
2705         * doc/md.texi (AVR constraints): Remove "C04", "R".
2706
2707 2012-01-20  Richard Guenther  <rguenther@suse.de>
2708
2709         PR tree-optimization/51903
2710         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
2711         when removing stmts.
2712
2713 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
2714
2715         PR target/50313
2716         * config/arm/arm.c (arm_load_pic_register): Use
2717         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
2718         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
2719         (arm_pic_static_addr): Likewise.
2720         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
2721         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
2722         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
2723         (pic_load_addr_unified): New.
2724
2725 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
2726
2727         PR target/51106
2728         * function.c (instantiate_virtual_regs_in_insn): Use
2729         delete_insn_and_edges when removing a wrong asm insn.
2730
2731 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
2732
2733         PR rtl-optimization/40761
2734         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
2735         Add new member loop_num.
2736         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
2737         (ira_build): Remove the parameter.
2738
2739         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
2740         (ira.c): Do not build CFG loops for one region allocation.  Remove
2741         argument from ira_build call.
2742
2743         * ira-build.c (init_loop_tree_node): New function.
2744         (create_loop_tree_nodes): Use it.  Separate the case when CFG
2745         loops are not built.
2746         (more_one_region_p): Check current_loops.
2747         (finish_loop_tree_nodes): Separate the case when CFG loops are not
2748         built.
2749         (add_loop_to_tree): Process loop equal to NULL too.
2750         (form_loop_tree): Separate the case when CFG loops are not built.
2751         Use explicitly number for the root.
2752         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
2753         an assertion.
2754         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
2755         instead of loop->num.
2756         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
2757         (mark_all_loops_for_removal): Ditto.
2758         (remove_unnecessary_regions): Separate the case when CFG loops
2759         are not built.
2760         (ira_build): Remove the parameter.  Use explicit number of regions
2761         when CFG loops are not built.
2762
2763         * ira-color.c (print_loop_title): Separate the case for the root node.
2764         Use loop_num instead of loop->num.
2765         (move_spill_restore): Use loop_num instead of loop->num.
2766
2767         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
2768         (change_loop): Ditto.
2769         (change_loop): Use loop_num instead of loop->num.
2770
2771         * ira-lives.c (process_bb_node_lives): Ditto.
2772
2773         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
2774
2775         * ira-conflicts.c (print_allocno_conflicts): Ditto.
2776
2777 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
2778
2779         PR libmudflap/40778
2780         * tree-mudflap.c (mf_artificial): New function.
2781         (execute_mudflap_function_ops, execute_mudflap_function_decls,
2782         mx_register_decls, mudflap_enqueue_decl): Use it.
2783
2784         PR target/51876
2785         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
2786         numbers in the insn pattern.
2787
2788 2012-01-19  Michael Matz  <matz@suse.de>
2789
2790         PR tree-optimization/46590
2791         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
2792         use it in remembering which conflicts we already created.
2793         (add_scope_conflicts): Adjust call to above, (de)allocate helper
2794         bitmap.
2795
2796 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
2797
2798         PR lto/51280
2799         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
2800         (merge_and_complain): Same.
2801
2802 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
2803
2804         PR bootstrap/50237
2805         * config/initfini-array.h: Guard content of the header
2806         with #ifdef HAVE_INITFINI_ARRAY.
2807         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
2808         Add initfini-array.h to tm_file here.
2809         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
2810         * config.gcc: Don't add initfini-array.h to tm_file here.
2811         * configure: Regenerated.
2812
2813 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
2814
2815         PR rtl-optimization/51505
2816         * df-problems.c (df_kill_notes): New parameter live. Update comment.
2817         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
2818         (df_note_bb_compute): Update the call to df_kill_notes.
2819
2820 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
2821
2822         * trans-mem.c (requires_barrier): Remove call to is_global_var.
2823
2824 2012-01-18  Richard Guenther  <rguenther@suse.de>
2825
2826         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
2827         of conversions to void *.
2828
2829 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2830             Richard Sandiford  <rdsandiford@googlemail.com>
2831
2832         PR middle-end/50325
2833         PR middle-end/51192
2834         * optabs.h (simplify_expand_binop): Declare.
2835         * optabs.c (simplify_expand_binop): Make global.
2836         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
2837         endian targets if the source cannot be exactly covered by word
2838         mode chunks.
2839
2840 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
2841
2842         PR bootstrap/51872
2843         * hard-reg-set.h (struct hard_reg_set_container): New type.
2844         * target.h (struct hard_reg_set_container): Forward declare.
2845         * target.def (set_up_by_prologue): New target hook.
2846         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
2847         * doc/tm.texi: Regenerated.
2848         * function.c (thread_prologue_and_epilogue_insns): Change
2849         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
2850         Call targetm.set_up_by_prologue on it.
2851         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
2852         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
2853
2854 2012-01-17  Nick Clifton  <nickc@redhat.com>
2855
2856         * config/rx/rx.c (rx_can_use_simple_return): New function.
2857         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
2858         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
2859
2860 2012-01-17  Richard Guenther  <rguenther@suse.de>
2861
2862         PR middle-end/51782
2863         * expr.c (expand_assignment): Take address-space information
2864         from the address operand of MEM_REF and TARGET_MEM_REF.
2865         (expand_expr_real_1): Likewise.
2866
2867 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2868
2869         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
2870         reload dump is requested.
2871
2872 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
2873
2874         PR other/51165
2875         * trans-mem.c (requires_barrier): Call may_be_aliased.
2876
2877 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
2878
2879         PR tree-optimization/51877
2880         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
2881         call arguments and fndecls compare equal, instead return false if they
2882         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
2883         both SSA_NAMEs that are valueized the same, or they satisfy
2884         operand_equal_p.
2885
2886 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2887
2888         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
2889         Solaris 11+.
2890         * configure: Regenerate.
2891
2892 2012-01-16  Jan Hubicka  <jh@suse.cz>
2893
2894         PR c/12245
2895         PR c++/14179
2896         * convert.c (convert_to_integer): Use fold_convert for
2897         converting an INTEGER_CST to integer type.
2898
2899 2012-01-16  Jason Merrill  <jason@redhat.com>
2900
2901         PR c++/14179
2902         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
2903
2904 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
2905
2906         PR bootstrap/51860
2907         * config/s390/s390.c (s390_chunkify_start): Don't skip
2908         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
2909         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
2910         If insn is followed by NOTE_INSN_VAR_LOCATION or
2911         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
2912         Don't use location of note insns.
2913
2914         PR tree-optimization/51865
2915         * tree-inline.c (tree_function_versioning): Call remap_decl
2916         on DECL_RESULT whenever it has VOID_TYPE_P type.
2917
2918 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
2919
2920         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
2921         for calls to locally-binding MIPS16 functions if only the return
2922         type uses float regs.
2923
2924 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
2925             Richard Sandiford  <rdsandiford@googlemail.com>
2926
2927         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
2928         (SYMBOL_32_HIGH): Likewise.
2929         (mips_output_tls_reloc_directive): Declare.
2930         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
2931         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
2932         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
2933         (mips_lo_relocs, mips_hi_relocs): Make extern.
2934         (mips16_stub_function): Move up file.
2935         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
2936         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
2937         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
2938         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
2939         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
2940         (mips_get_tp): Add MIPS16 support.
2941         (mips_legitimize_tls_address): Remove MIPS16 sorry().
2942         Generalize DTPREL and TPREL handling.
2943         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
2944         Add MIPS16 TLS support.
2945         (mips_output_tls_reloc_directive): New function.
2946         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
2947         * config/mips/predicates.md (symbolic_operand_with_high)
2948         (tls_reloc_operand): New predicates.
2949         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
2950         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
2951         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
2952         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
2953         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
2954         (*tls_get_tp_mips16_call_<mode>): Likewise.
2955
2956 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
2957
2958         PR rtl-optimization/51821
2959         * recog.c (peep2_find_free_register): Determine clobbered registers
2960         from insn pattern.
2961
2962 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
2963
2964         PR target/50925
2965         * config/avr/avr-protos.h: Revert change of 2012-01-09.
2966         * config/avr/avr.c: Likewise.
2967         * config/avr/avr.h: Likewise.
2968
2969 2012-01-13  Ian Lance Taylor  <iant@google.com>
2970
2971         PR c++/50012
2972         * tree.h (TYPE_QUALS): Add cast to int.
2973         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
2974
2975 2012-01-13  Ian Lance Taylor  <iant@google.com>
2976
2977         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
2978         comparing param_index to VEC_length result.
2979
2980 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
2981
2982         * c-decl.c: Do not include tree-mudflap.h
2983         * tree-optimize.c: Likewise.
2984         * Makefile.in: Update dependencies.
2985
2986 2012-01-13  Richard Guenther  <rguenther@suse.de>
2987
2988         PR middle-end/8081
2989         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
2990         variable-sized result always use RSO.
2991
2992 2012-01-12  DJ Delorie  <dj@redhat.com>
2993
2994         * cfgexpand.c (convert_debug_memory_address): Allow any valid
2995         pointer type, not just the default pointer type.
2996
2997 2012-01-09  Richard Henderson  <rth@redhat.com>
2998             Denis Chertykov  <chertykov@gmail.com>
2999
3000         PR target/50925
3001         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
3002         * config/avr/avr.c (avr_can_eliminate): Simplify.
3003         (avr_initial_elimination_offset): Likewise.
3004         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
3005         (expand_epilogue): Likewise.
3006         (avr_legitimize_address): Gut.
3007         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
3008         (avr_hard_regno_nregs): New.
3009         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
3010         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
3011         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
3012         add soft frame pointer.
3013         (CALL_USED_REGISTERS): Likewise.
3014         (REG_CLASS_CONTENTS): Likewise.
3015         (REGISTER_NAMES): Likewise.
3016         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
3017         (HARD_FRAME_POINTER_REGNUM): New.
3018         (FRAME_POINTER_REGNUM): Use soft frame pointer.
3019         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
3020         remove the HARD_FRAME_POINTER self-elimination.
3021
3022 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
3023
3024         PR target/51756
3025         * config/avr/avr.c (avr_encode_section_info): Test for absence of
3026         DECL_EXTERNAL when checking for initializers of progmem variables.
3027
3028 2012-01-12  Ira Rosen  <irar@il.ibm.com>
3029
3030         PR tree-optimization/51799
3031         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
3032         that the last operation is a type demotion.
3033
3034 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
3035
3036         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
3037         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
3038
3039 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
3040
3041         PR bootstrap/51796
3042         * combine.c (distribute_notes): If i3 is a noreturn call,
3043         allow old_size to be equal to args_size and make sure the
3044         noreturn call gets REG_ARGS_SIZE note.
3045         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
3046         on noreturn calls even when the delta is 0.
3047
3048 2012-01-11  Nathan Sidwell  <nathan@acm.org>
3049
3050         * gcov.c (STRING_SIZE): Remove.
3051         (generate_results): Erase annotations for source files with no
3052         coverage information.
3053         (read_line): New.
3054         (output_lines): Use it.
3055
3056 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
3057
3058         * gimple.h (gimplify_body): Remove first argument.
3059         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
3060         pointer set here, instead just pass DATA to walk_tree.
3061         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
3062         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
3063         (unvisit_body): Likewise, but with unmark_visited.
3064         (gimplify_body): Remove BODY_P argument and adjust.
3065         (gimplify_function_tree): Adjust call to gimplify_body.
3066         * omp-low.c (finalize_task_copyfn): Likewise.
3067
3068 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
3069
3070         * tree.h (build_function_decl_skip_args): Add boolean parameter.
3071         (build_function_type_skip_args): Delete.
3072         * tree.c (build_function_type_skip_args): Make static and add
3073         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
3074         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
3075         pass it to build_function_type_skip_args.
3076         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
3077         (tree_function_versioning): Likewise.
3078         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
3079         build_function_decl_skip_args.
3080         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
3081         and pass it to build_function_decl_skip_args/tree_function_versioning.
3082         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
3083         * ipa-inline-transform.c (save_inline_function_body): Likewise.
3084         * trans-mem.c (ipa_tm_create_version): Likewise.
3085         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
3086         * tree-inline.c (declare_return_variable): Remove always-true test.
3087         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
3088         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
3089         * ipa-split.c (split_function): Skip the return value for the split
3090         part if it doesn't return.
3091
3092 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
3093
3094         PR tree-optimization/49642
3095         * ipa-split.c (forbidden_dominators): New variable.
3096         (check_forbidden_calls): New function.
3097         (dominated_by_forbidden): Likewise.
3098         (consider_split): Check for forbidden dominators.
3099         (execute_split_functions): Initialize and free forbidden
3100         dominators info; call check_forbidden_calls.
3101
3102 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
3103
3104         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
3105
3106 2012-01-11  Nick Clifton  <nickc@redhat.com>
3107
3108         * config/rx/rx.md (return): Define pattern.
3109
3110 2012-01-11  Richard Guenther  <rguenther@suse.de>
3111
3112         * doc/extend.texi (malloc attribute): Adjust according to
3113         implementation.
3114
3115 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
3116             Patrick Marlier  <patrick.marlier@gmail.com>
3117
3118         PR middle-end/51516
3119         * trans-mem.c (get_cg_data): Traverse aliases if requested.
3120         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
3121         (ipa_tm_note_irrevocable): Same.
3122         (ipa_tm_scan_irr_block): Same.
3123         (ipa_tm_decrement_clone_counts): Same.
3124         (ipa_tm_scan_irr_function): Same.
3125         (ipa_tm_create_version_alias): Same.
3126         (ipa_tm_create_version): Same.
3127         (ipa_tm_transform_calls_redirect): Same.
3128         (ipa_tm_transform_calls): Same.
3129         (ipa_tm_transform_transaction): Same.
3130         (ipa_tm_execute): Same.
3131
3132 2012-01-10  Richard Guenther  <rguenther@suse.de>
3133
3134         PR middle-end/51806
3135         * opts.c (common_handle_option): Handle -Werror.
3136
3137 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
3138
3139         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
3140         operand number.
3141
3142 2012-01-10  Jason Merrill  <jason@redhat.com>
3143
3144         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
3145         information.
3146
3147 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3148
3149         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
3150         supports R_386_TLS_GD_PLT reloc.
3151         (gcc_cv_as_ix86_tlsldmplt): Check if linker
3152         supports R_386_TLS_LDM_PLT reloc.
3153         * configure: Regenerate.
3154         * config.in: Regenerate.
3155
3156 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
3157
3158         PR target/49868
3159         Extend __pgmx semantics to linearize memory.
3160         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
3161         determine if code comes inline or from libgcc.
3162         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
3163         (movmem_qi, movmem_qi): Set constraint #2 to "n".
3164         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
3165         (movmemx_qi, movmemx_hi): New insns.
3166         (xload_<mode>_libgcc): Rewrite to new insn condition.
3167         (xload_<mode>): Remove insns.
3168         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
3169         cases that don't satisfy avr_xload_libgcc_p().
3170         (avr_addr_space_convert): Allow converting in any direction.
3171         (avr_addr_space_subset_p): Return always true.
3172         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
3173         (avr_emit_movmemhi): Ditto.
3174         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
3175         (avr_out_movmem): Ditto.
3176         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
3177         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
3178         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
3179         (avr_encode_section_info): Encode 'progmem' in symbol flags.
3180         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
3181
3182 2012-01-10  Richard Guenther  <rguenther@suse.de>
3183
3184         PR tree-optimization/50913
3185         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
3186         Require data-refs to be representable by Graphite with respect
3187         to any loop nest.
3188
3189 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
3190
3191         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
3192         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
3193
3194 2012-01-10  Tom de Vries  <tom@codesourcery.com>
3195
3196         PR rtl-optimization/51271
3197         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
3198         handling annulled branch.
3199
3200 2012-01-10  Richard Henderson  <rth@redhat.com>
3201
3202         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
3203         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
3204         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
3205         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
3206         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
3207         arm_expand_vec_perm_const): New.
3208         * config/arm/arm-protos.h: Update.
3209         * config/arm/neon.md (UNSPEC_VCONCAT): New.
3210         (*neon_vswp<VDQX>): New.
3211         (neon_vcombine<VDX>): Use neon_split_vcombine.
3212         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
3213         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
3214         (vec_perm<VE>): New.
3215
3216 2012-01-10  Richard Henderson  <rth@redhat.com>
3217
3218         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
3219         use it if reload_completed.
3220         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
3221         arm_output_asm_insn, arm_process_output_memory_barrier,
3222         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
3223         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
3224         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
3225         arm_process_output_sync_insn, arm_output_sync_insn,
3226         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
3227         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
3228         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
3229         (emit_unlikely_jump): New.
3230         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
3231         (arm_split_atomic_op): New.
3232         * config/arm/arm-protos.h: Update.
3233         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
3234         (struct arm_sync_generator): Remove.
3235         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
3236         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
3237         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
3238         (VUNSPEC_LL, VUNSPEC_SC): New.
3239         (sync_result, sync_memory, sync_required_value, sync_new_value,
3240         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
3241         (attr length): Don't use arm_sync_loop_insns.
3242         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
3243         (movsfcc, movdfcc): Likewise.
3244         * config/arm/constraints.md (Ua): New.
3245         * config/arm/prediates.md (mem_noofs_operand): New.
3246         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
3247         (sync_clobber, sync_t2_reqd): Remove.
3248         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
3249         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
3250         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
3251         (arm_sync_compare_and_swap<SIDI>): Remove.
3252         (arm_sync_compare_and_swap<NARROW>): Remove.
3253         (arm_sync_lock_test_and_set<SIDI>): Remove.
3254         (arm_sync_lock_test_and_set<NARROW>): Remove.
3255         (arm_sync_new_<syncop><SIDI>): Remove.
3256         (arm_sync_new_<syncop><NARROW>): Remove.
3257         (arm_sync_new_nand<SIDI>): Remove.
3258         (arm_sync_new_nand<NARROW>): Remove.
3259         (arm_sync_old_<syncop><SIDI>): Remove.
3260         (arm_sync_old_<syncop><NARROW>): Remove.
3261         (arm_sync_old_nand<SIDI>): Remove.
3262         (arm_sync_old_nand<NARROW>): Remove.
3263         (*memory_barrier): Merge arm_output_memory_barrier.
3264         (atomic_compare_and_swap<QHSD>): New.
3265         (atomic_compare_and_swap<NARROW>_1): New.
3266         (atomic_compare_and_swap<SIDI>_1): New.
3267         (atomic_exchange<QHSD>): New.
3268         (cas_cmp_operand, cas_cmp_str): New.
3269         (atomic_op_operand, atomic_op_str): New.
3270         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
3271         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
3272         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
3273         (arm_load_exclusive<NARROW>): New.
3274         (arm_load_exclusivesi, arm_load_exclusivedi): New.
3275         (arm_store_exclusive<QHSD>): New.
3276
3277 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
3278
3279         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
3280         reload patterns if -mvsx-scalar-memory.
3281
3282         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
3283         generated, even -mno-vsx-scalar-double was used.
3284         (vsx_xscvdpsp_scalar): Likewise.
3285         (vsx_xscvspdp_scalar2): Likewise.
3286
3287 2012-01-09  Tom de Vries  <tom@codesourcery.com>
3288             Andrew Pinski  <apinski@cavium.com>
3289
3290         PR debug/51471
3291         * reorg.c (fill_slots_from_thread): Don't speculate
3292         frame-related insns.
3293
3294 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
3295
3296         * sched-int.h (bb_note): Move to...
3297         * basic-block.h: ...here.
3298         * haifa-sched.c (bb_note): Move to...
3299         * cfgrtl.c: ...here.
3300         * function.c (next_block_for_reg): New function.
3301         (move_insn_for_shrink_wrap): Likewise.
3302         (prepare_shrink_wrap): Rewrite to use the above.
3303
3304 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
3305
3306         * gimple.c (is_gimple_non_addressable): Remove.
3307         * gimple.h: Remove is_gimple_non_addressable.
3308         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
3309         is_gimple_non_addressable.
3310         * trans-mem.c (expand_assign_tm): Same.
3311
3312 2012-01-09  Richard Guenther  <rguenther@suse.de>
3313
3314         PR tree-optimization/51775
3315         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
3316         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
3317
3318 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
3319
3320         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
3321         tuning parameters.
3322         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
3323
3324 2012-01-09  Richard Guenther  <rguenther@suse.de>
3325
3326         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
3327
3328 2012-01-08  Jan Hubicka  <jh@suse.cz>
3329
3330         PR tree-optimize/51680
3331         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
3332         on when known_vals needs to be computed; cleanup.
3333
3334 2012-01-08  Jan Hubicka  <jh@suse.cz>
3335
3336         PR tree-optimize/51694
3337         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
3338
3339 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
3340
3341         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
3342         for -std=c++98 and -std=c++11 too.
3343
3344 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
3345
3346         * cfgloop.c (cancel_loop): Add free() of bbs array.
3347
3348 2012-01-07  Jan Hubicka  <jh@suse.cz>
3349
3350         PR tree-optimization/51600
3351         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
3352         that benefits small functions.
3353
3354 2012-01-07  Jan Hubicka  <jh@suse.cz>
3355
3356         * ipa-inline.c (want_inline_small_function_p): Fix formating.
3357
3358 2012-01-07  Jan Hubicka  <jh@suse.cz>
3359
3360         PR tree-optimization/51680
3361         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
3362         whose inlining reduce unit size.
3363
3364 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
3365
3366         PR bootstrap/51725
3367         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
3368         Add canonical node to containing_mem chain after the non-canonical
3369         one, even if there weren't any locs to propagate.
3370         (remove_useless_values): Keep only canonical values.
3371         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
3372         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
3373         canonicalize mem_chain elements that are not discarded.
3374
3375 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
3376
3377         PR target/47333
3378         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
3379         before emitting functions.
3380
3381         PR gcov-profile/50127
3382         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
3383         clear_aux_for_blocks.
3384
3385 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
3386
3387         PR debug/51746
3388         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
3389
3390 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
3391
3392         * c-decl.c (ext_block): Moved up.
3393         (collect_all_refs, for_each_global_decl): Take ext_block into account.
3394
3395 2012-01-06  Han Shen  <shenhan@google.com>
3396
3397         Translate built-in include paths for sysroot.
3398         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
3399         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
3400
3401         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
3402         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
3403
3404         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
3405         control whether sysroot should be prepended to gxx include dir.
3406
3407         * configure: Regenerate.
3408
3409 2012-01-06  Torvald Riegel  <triegel@redhat.com>
3410
3411         PR rtl-optimization/51771
3412         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
3413         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
3414
3415 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
3416
3417         PR tree-optimization/51315
3418         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
3419         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
3420
3421 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
3422
3423         PR target/51681
3424         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
3425         for shrp pattern.  Correctly handle and fixup shift variable.
3426         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
3427
3428 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
3429
3430         PR debug/51762
3431         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
3432         note when !ACCUMULATE_OUTGOING_ARGS.
3433
3434 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
3435
3436         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
3437         condition.
3438         (extract_range_from_unary_expr_1): Avoid useless computations.
3439
3440 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
3441
3442         PR rtl-optimization/51767
3443         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
3444         of jump_block and add an extra edge for degenerated asm gotos.
3445
3446         PR middle-end/51768
3447         * stmt.c (check_unique_operand_names): Don't ICE during error
3448         reporting if i is from labels chain.
3449
3450         PR middle-end/44777
3451         * profile.c (branch_prob): Split bbs that have exit edge
3452         and need a fake entry edge too.
3453
3454 2012-01-05  Jan Hubicka  <jh@suse.cz>
3455
3456         PR middle-end/49710
3457         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
3458         unlooping loops.
3459
3460 2012-01-05  Richard Guenther  <rguenther@suse.de>
3461
3462         PR lto/50490
3463         * tree-streamer-out.c (write_ts_optimization): New function.
3464         (streamer_write_tree_body): Call it.
3465         * tree-streamer-in.c (lto_input_ts_optimization): New function.
3466         (streamer_read_tree_body): Call it.
3467         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
3468
3469 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
3470
3471         PR middle-end/51761
3472         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
3473         * gimplify.c (gimplify_cleanup_point_expr): Save and set
3474         in_cleanup_point_expr before gimplify_stmt call and restore it
3475         afterwards.
3476         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
3477         in_cleanup_point_expr is false.
3478
3479 2012-01-05  Richard Guenther  <rguenther@suse.de>
3480
3481         PR middle-end/51764
3482         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
3483         to c.opt.
3484         * toplev.c (process_options): Reject combining mudflap and LTO.
3485         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
3486
3487 2012-01-05  Richard Guenther  <rguenther@suse.de>
3488
3489         PR tree-optimization/51760
3490         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
3491         not VARYING.
3492         (bit_value_unop): Handle UNDEFINED operands.
3493         (bit_value_binop): Likewise.
3494
3495 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
3496
3497         * config/avr/avr.c (avr_replace_prefix): Remove.
3498         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
3499         (avr_asm_function_rodata_section): Ditto.
3500         (avr_asm_select_section): Ditto.
3501
3502 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
3503
3504         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
3505         insertion.
3506
3507 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
3508