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2012-02-28 Thomas Koenig <tkoenig@gcc.gnu.org>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2012-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>
2
3         PR tree-optimization/53207
4         * doc/invoke.texi: Document as experimental and relying on graphite.
5
6 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
7
8         * config/avr/avr-devices.c (avr_mcu_type): Adjust NULL part
9         of initializer to changes from r184614.
10         
11 2012-02-28  Richard Guenther  <rguenther@suse.de>
12
13         PR tree-optimization/52395
14         * tree-sra.c (build_ref_for_offset): Also look at the base
15         TYPE_ALIGN when figuring out the alignment of the replacement.
16
17 2012-02-28  Richard Guenther  <rguenther@suse.de>
18
19         PR tree-optimization/52402
20         * ipa-prop.c (ipa_modify_call_arguments): Properly use
21         mis-aligned types when creating the accesses at the call site.
22
23 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
24
25         * config/avr/builtins.def: New file.
26         * config/avr/t-avr (avr.o, avr-c.o): Depend on it.
27         * config/avr/avr.c (enum avr_builtin_id): Use it.
28         (avr_init_builtins): Use it. And use avr_bdesc.
29         (bdesc_1arg): Remove.
30         (bdesc_2arg): Remove.
31         (bdesc_3arg): Remove.
32         (struct avr_builtin_description): Add field n_args.
33         (avr_bdesc): New static variable using builtins.def.
34         (avr_expand_builtin): Use it.
35         Don't call avr_expand_delay_cycles if op0 is not CONST_INT.
36         (avr_fold_builtin): Fold AVR_BUILTIN_SWAP.
37         Don't fold AVR_BUILTIN_INSERT_BITS if arg0 is not INTEGER_CST.
38
39 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
40
41         PR target/52148
42         * config/avr/avr.md (movmem_<mode>): Replace match_operand that
43         match only one single hard register with respective hard reg rtx.
44         (movmemx_<mode>): Ditto.
45         * config/avr/avr.c (avr_emit_movmemhi): Adapt expanding to new
46         insn anatomy of movmem[x]_<mode>.
47         (avr_out_movmem): Same for printing assembler and operand usage.
48
49 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
50
51         PR target/49868
52         PR target/52261
53         * doc/extend.texi (AVR Named Address Spaces): No more try to fix
54         address spaces located outside of device flash.
55
56         * config/avr/avr.h (base_arch_s): Remove field n_segments.
57         (mcu_type_s): Add field n_flash.
58         * config/avr/avr-devices.c (avr_arch_types): Remove .n_segments.
59         Set .have_elpm and .have_elpmx to 1 for avrxmega4 and avrxmega5.
60         (AVR_MCU): Add N_FLASH argument.
61         * config/avr/avr-mcus.def (AVR_MCU): Add initializer for .n_flash.
62         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Only define built-in
63         macro __FLASH<n> if that address space makes sense for the device.
64         * config/avr/avr.c (avr_out_lpm): Don't try to fix address spaces
65         outside of target flash.
66         (avr_asm_named_section): Ditto.
67         (avr_asm_select_section): Ditto.
68         (avr_addr_space_convert): Ditto.
69         (avr_emit_movmemhi): Ditto.
70         (avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Error if
71         address space is outside of device flash.
72         (avr_insert_attributes): Ditto.
73         (avr_xload_libgcc_p): Use avr_current_device->n_flash instead of
74         avr_current_arch->n_segments.
75
76 2012-02-27  H.J. Lu  <hongjiu.lu@intel.com>
77
78         PR target/52352
79         * config/i386/i386.md (*movabs<mode>_1): Enable only for
80         TARGET_LP64.
81         (*movabs<mode>_2): Likewise.
82
83 2012-02-27  Jakub Jelinek  <jakub@redhat.com>
84
85         PR target/52375
86         * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Use
87         s_register_operand in the test instead of REG_P.  Don't call
88         gen_reg_rtx if it won't be used.
89
90         PR tree-optimization/52376
91         * ipa-split.c (split_function): Ignore CLOBBER stmts.
92
93 2012-02-27  Stuart Henderson  <shenders@gcc.gnu.org>
94
95         * ifcvt.c (noce_get_condition): Check condition variable is not
96         small_register_classes_for_mode_p before accepting.
97
98 2012-02-27  Uros Bizjak  <ubizjak@gmail.com>
99
100         * config/i386/i386.md (*movabs<mode>_1): Fix operand 1 constraints.
101
102 2012-02-27  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
103
104         Revert:
105         2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
106         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
107         tuning parameters.
108         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
109
110 2012-02-27  Oleg Endo  <olegendo@gcc.gnu.org>
111
112         * config/sh/sh.h: Delete dead GO_IF_LEGITIMATE_INDEX macro.
113
114 2012-02-26  Oleg Endo  <olegendo@gcc.gnu.org>
115
116         * config/sh/predicates.md: Remove blank lines.
117         * config/sh/sh.c: Fix typos in comments.
118         * config/sh/constraints.md: Likewise.
119         * config/sh/sh.md: Remove blank lines.
120         Fix typos in comments.  Use ;; as comment characters.
121
122 2012-02-26  Walter Lee  <walt@tilera.com>
123
124         * config/tilegx/tilegx.c (match_pcrel_step2): Fix instruction pattern.
125         (replace_mov_pcrel_step2): Ditto.
126
127 2012-02-25  Alexandre Oliva  <aoliva@redhat.com>
128
129         PR debug/52001
130         * alias.c (refs_newer_value_cb, refs_newer_value_p): New.
131         (get_addr): Walk canonical value's locs.  Avoid returning VALUEs
132         and locs that reference values newer than the non-canonical value
133         at hand.  Return the canonical value as a worst case.
134         (memrefs_conflict_p): Walk canonical value's locs.
135
136         PR debug/52001
137         * cselib.c (preserve_only_constants): Rename to...
138         (preserve_constants_and_equivs): ... this.  Split out...
139         (invariant_or_equiv_p): ... this.  Preserve plus expressions
140         of other preserved expressions too.
141         (cselib_reset_table): Adjust.
142         * var-tracking.c (reverse_op): Use canonical value to build
143         reverse operation.
144
145 2012-02-23  Kai Tietz  <ktietz@redhat.com>
146
147         * config/i386/i386.c (ix86_delegitimize_address): Handle
148         UNSPEC_PCREL plus displacement.
149
150 2012-02-24  Georg-Johann Lay  <avr@gjlay.de>
151
152         PR target/52261
153         * config/avr/avr.c (avr_out_movhi_mr_r_xmega): Use base
154         to test for unusedness in st X addressing.
155
156 2012-02-24  Richard Guenther  <rguenther@suse.de>
157
158         PR middle-end/52361
159         * gimple.c (walk_gimple_op): Use predicates with less redundant tests.
160         (is_gimple_reg_type): Move inline ...
161         * gimple.h (is_gimple_reg_type): ... here.
162
163 2012-02-24  Richard Guenther  <rguenther@suse.de>
164
165         PR middle-end/52361
166         * passes.c (execute_function_todo): When verifying SSA form
167         verify gimple form first.
168         * tree-ssa.c (verify_ssa): Do not verify gimple form here.
169
170 2012-02-24  Richard Guenther  <rguenther@suse.de>
171
172         PR middle-end/52355
173         * fold-const.c (fold_addr_of_array_ref_difference): New function.
174         (fold_binary_loc): Use it to extend the existing &a[i] - &a[j] folding.
175
176 2012-02-13  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
177
178         * tree-if-conv (predicate_scalar_phi): Commentary typo fix.
179
180 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
181
182         * tree-phinodes.c (make_phi_node): Mark static.
183         * tree-flow.h (make_phi_node): Remove extern decl.
184         * doc/gimple.texi (make_phi_node): Remove documentation.
185
186 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
187
188         * tree-into-ssa (update_ssa): Avoid trailing whitespace in dump_file.
189         * tree-ssa-sccvn.c (print_scc): Ditto.
190
191 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
192
193         * doc/passes.texi (Full redundancy elimination): Fix typo.
194
195 2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
196
197         * doc/invoke.texi (-fdse, -fdce): Remove duplicate entries.
198
199 2012-02-23  Eric Botcazou  <ebotcazou@adacore.com>
200
201         PR bootstrap/52287
202         * haifa-sched.c (rank_for_schedule): Stabilize sort for debug insns.
203
204 2012-02-23  Uros Bizjak  <ubizjak@gmail.com>
205
206         PR c/52290
207         * c-decl.c (start_function): Exit early if decl1 is not FUNTION_DECL.
208
209 2012-02-23  Georg-Johann Lay  <avr@gjlay.de>
210
211         * config/avr/avr.md (code_stdname): Add ior, xor.
212         (xior): New code iterator.
213         (*<code_stdname><mode>qi.byte0): Use xior instead of ior.
214         (*<code_stdname><mode>qi.byte1-3): Ditto.
215
216 2012-02-23  Jakub Jelinek  <jakub@redhat.com>
217
218         PR tree-optimization/52019
219         * ipa-split.c (find_return_bb, find_retval, visit_bb): Ignore
220         CLOBBER stmts.
221
222 2012-02-23  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
223
224         * acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of
225         HAVE_INITFINI_ARRAY to work around namespace pollution in
226         certain versions of newlib system headers.
227         * config.in: Regenerate.
228         * configure: Regenerate.
229         * config/initfini-array.h: Use HAVE_INITFINI_ARRAY_SUPPORT
230         instead of HAVE_INITFINI_ARRAY.
231
232 2012-02-22  Uros Bizjak  <ubizjak@gmail.com>
233
234         PR target/52330
235         * config/i386/i386.c (ix86_print_operand) <case 'H'>: Error out if x
236         is not offsettable memory reference.
237
238 2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
239
240         PR target/18145
241         * config/avr/avr.c (avr_asm_output_aligned_decl_common): Skip
242         setting avr_need_clear_bss_p for __gnu_lto* symbols.
243
244 2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
245
246         * config/avr/avr.h (avr_accumulate_outgoing_args): Return int.
247         * config/avr/avr.c (avr_accumulate_outgoing_args): Return int.
248
249 2012-02-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
250
251         * configure.ac (LIB_TLS_SPEC): Enforce use of alternate thread
252         library on Solaris 8 even without TLS support.
253         * configure: Regenerate.
254
255 2012-02-22  Richard Guenther  <rguenther@suse.de>
256
257         PR middle-end/52329
258         * gimple-fold.c (fold_stmt_1): Also canonicalize ADDR_EXPRs
259         for GIMPLE_DEBUG stmts.
260
261 2012-02-22  Martin Jambor  <mjambor@suse.cz>
262
263         PR middle-end/51782
264         * emit-rtl.c (set_mem_attributes_minus_bitpos): Set address space
265         according to the base object.
266
267 2012-02-22  Georg-Johann Lay  <avr@gjlay.de>
268
269         PR rtl-optimization/50063
270         * config/avr/avr.md (movhi_sp_r): Handle -1 (unknown IRQ state)
271         and 2 (8-bit SP) in operand 2.
272         * config/avr/avr.c (avr_prologue_setup_frame): Adjust prologue
273         setup to use movhi_sp_r instead of vanilla move to write SP.
274         Adjust REG_CFA notes to superseed unspec.
275         (expand_epilogue): Adjust epilogue setup to use movhi_sp_r instead
276         of vanilla move.
277         As function body might contain CLI or SEI: Use irq_state 0 (IRQ
278         known to be off) only with TARGET_NO_INTERRUPTS. Never use
279         irq_state 1 (IRQ known to be on) here.
280
281 2012-02-21  Bernd Schmidt  <bernds@codesourcery.com>
282
283         * ira.c (check_allocation): Use REG_WORDS_BIG_ENDIAN, not
284         WORDS_BIG_ENDIAN.
285         * ira-color.c (setup_profitable_hard_regs, check_hard_reg_p,
286         assign_hard_reg): Likewise.
287
288 2012-02-21  Georg-Johann Lay  <avr@gjlay.de>
289
290         * config/avr/avr.md (neghi2): Remove "!d,0" alternative. Tweak "r,0".
291
292 2012-02-21  Georg-Johann Lay  <avr@gjlay.de>
293
294         * config/avr/avr.md
295         (*dec-and-branchhi!=-1.d.clobber): New text peephole.
296         (*dec-and-branchhi!=-1.l.clobber): New text peephole.
297
298 2012-02-21  Georg-Johann Lay  <avr@gjlay.de>
299
300         * config/avr/avr-protos.h (avr_accumulate_outgoing_args): Move
301         prototype from here to...
302         * config/avr/avr.h: ...here.
303
304 2012-02-21  Richard Earnshaw  <rearnsha@arm.com>
305
306         PR target/52294
307         * thumb2.md (thumb2_shiftsi3_short): Split register and
308         immediate shifts.  For register shifts tie operands 0 and 1.
309         (peephole2 for above): Check that register-controlled shifts
310         have suitably tied operands.
311
312 2012-02-21  Quentin Neill  <quentin.neill@amd.com>
313
314         PR target/52137
315         * config/i386/bdver1.md (bdver1_call, bdver1_push,
316         bdver1_pop, bdver1_leave, bdver1_lea, bdver1_imul_DI, bdver1_imul,
317         bdver1_imul_mem_DI, bdver1_imul_mem, bdver1_idiv, bdver1_idiv_mem,
318         bdver1_str, bdver1_idirect, bdver1_ivector, bdver1_idirect_loadmov,
319         bdver1_idirect_load, bdver1_ivector_load, bdver1_idirect_movstore,
320         bdver1_idirect_both, bdver1_ivector_both, bdver1_idirect_store,
321         bdver1_ivector_store, bdver1_fldxf, bdver1_fld, bdver1_fstxf,
322         bdver1_fst, bdver1_fist, bdver1_fmov_bdver1, bdver1_fadd_load,
323         bdver1_fadd, bdver1_fmul_load, bdver1_fmul, bdver1_fsgn,
324         bdver1_fdiv_load, bdver1_fdiv, bdver1_fpspc_load, bdver1_fpspc,
325         bdver1_fcmov_load, bdver1_fcmov, bdver1_fcomi_load,
326         bdver1_fcomi, bdver1_fcom_load, bdver1_fcom,
327         bdver1_fxch, bdver1_ssevector_avx128_unaligned_load,
328         bdver1_ssevector_avx256_unaligned_load,
329         bdver1_ssevector_sse128_unaligned_load,
330         bdver1_ssevector_avx128_load, bdver1_ssevector_avx256_load,
331         bdver1_ssevector_sse128_load, bdver1_ssescalar_movq_load,
332         bdver1_ssescalar_vmovss_load, bdver1_ssescalar_sse128_load,
333         bdver1_mmxsse_load, bdver1_sse_store_avx256, bdver1_sse_store,
334         bdver1_mmxsse_store_short, bdver1_ssevector_avx256,
335         bdver1_movss_movsd, bdver1_mmxssemov, bdver1_sselog_load_256,
336         bdver1_sselog_256, bdver1_sselog_load, bdver1_sselog,
337         bdver1_ssecmp_load, bdver1_ssecmp, bdver1_ssecomi_load,
338         bdver1_ssecomi, bdver1_vcvtX2Y_avx256_load, bdver1_vcvtX2Y_avx256,
339         bdver1_ssecvt_cvtss2sd_load, bdver1_ssecvt_cvtss2sd,
340         bdver1_sseicvt_cvtsi2sd_load, bdver1_sseicvt_cvtsi2sd,
341         bdver1_ssecvt_cvtpd2ps_load, bdver1_ssecvt_cvtpd2ps,
342         bdver1_ssecvt_cvtdq2ps_load, bdver1_ssecvt_cvtdq2ps,
343         bdver1_ssecvt_cvtdq2pd_load, bdver1_ssecvt_cvtdq2pd,
344         bdver1_ssecvt_cvtps2pd_load, bdver1_ssecvt_cvtps2pd,
345         bdver1_ssecvt_cvtsX2si_load, bdver1_ssecvt_cvtsX2si,
346         bdver1_ssecvt_cvtpd2pi_load, bdver1_ssecvt_cvtpd2pi,
347         bdver1_ssecvt_cvtpd2dq_load, bdver1_ssecvt_cvtpd2dq,
348         bdver1_ssecvt_cvtps2pi_load, bdver1_ssecvt_cvtps2pi,
349         bdver1_ssemuladd_load_256, bdver1_ssemuladd_256,
350         bdver1_ssemuladd_load, bdver1_ssemuladd, bdver1_sseimul_load,
351         bdver1_sseimul, bdver1_sseiadd_load, bdver1_sseiadd,
352         bdver1_ssediv_double_load_256, bdver1_ssediv_double_256,
353         bdver1_ssediv_single_load_256, bdver1_ssediv_single_256,
354         bdver1_ssediv_double_load, bdver1_ssediv_double,
355         bdver1_ssediv_single_load, bdver1_ssediv_single, bdver1_sseins):
356         Add "bdver2" attribute.
357
358 2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
359
360         * config/s390/s390.c (s390_option_override): Make -mhard-dfp the
361         default if possible and not specified otherwise.
362
363 2012-02-21  Richard Guenther  <rguenther@suse.de>
364
365         PR middle-end/52314
366         * gimplify.c (create_tmp_from_val): Use the main variant type
367         for the type of the temporary we create.
368
369 2012-02-21  Richard Guenther  <rguenther@suse.de>
370
371         PR tree-optimization/52324
372         * gimplify.c (gimplify_expr): When re-gimplifying expressions
373         do not gimplify a MEM_REF address operand if it is already
374         in suitable form.
375
376 2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
377
378         * config/s390/s390.md ("fixuns_trunc<mode>si2"): Replace
379         TARGET_HARD_FLOAT with TARGET_HARD_DFP.
380
381 2012-02-21  Richard Guenther  <rguenther@suse.de>
382
383         * tree-vect-stmts.c (vectorizable_load): Use pre-computed
384         nested_in_vect_loop.
385
386 2012-02-21  Jakub Jelinek  <jakub@redhat.com>
387
388         PR tree-optimization/52318
389         * gimple-fold.c (gimplify_and_update_call_from_tree): Add
390         vdef also to non-pure/const call stmts in the sequence.
391
392 2012-02-20  David S. Miller  <davem@davemloft.net>
393
394         * config/sparc/sparc.md (load_pcrel_sym<P:mode>): Explain why we
395         don't use the "rd %pc" instruction on v9 for PIC register loads.
396
397 2012-02-20  Aldy Hernandez  <aldyh@redhat.com>
398
399         PR middle-end/52141
400         * trans-mem.c (ipa_tm_scan_irr_block): Error out on GIMPLE_ASM's
401         in a transaction safe function.
402
403 2012-02-20  Kai Tietz  <ktietz@redhat.com>
404
405         PR target/52238
406         * stor-layout.c (place_field): Handle desired_align for
407         ms-bitfields, too.
408
409 2012-02-20  Richard Guenther  <rguenther@suse.de>
410
411         PR tree-optimization/52298
412         * tree-vect-stmts.c (vectorizable_store): Properly use
413         STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
414         outer loops.
415         (vectorizable_load): Likewise.
416         * tree-vect-data-refs.c (vect_analyze_data_ref_access):
417         Access DR_STEP after ensuring it is not NULL.
418
419 2012-02-20  Jakub Jelinek  <jakub@redhat.com>
420
421         PR tree-optimization/52286
422         * fold-const.c (fold_binary_loc): For (X & C1) | C2
423         optimization use double_int_to_tree instead of build_int_cst_wide,
424         rewrite to use double_int vars.
425
426 2012-02-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
427
428         PR target/50166
429         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Require gcc_SUN_LD_VERSION.
430         Define _start.
431         Remove -e 0 from $gcc_cv_ld invocation.
432         Only use __GLIBC_PREREQ if defined.
433         Enable on Solaris since Solaris 8 patch.
434         (gcc_SUN_LD_VERSION): New macro.
435         * configure.ac (ld_ver) <*-*-solaris2*>: Refer to
436         gcc_SUN_LD_VERSION for version number format.
437         * configure: Regenerate.
438         * varasm.c (get_elf_initfini_array_priority_section): Set
439         SECTION_NOTYPE for non-default priority.
440         Use get_section instead of get_unnamed_section to emit
441         .init_array/.fini_array with default priority.
442
443 2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>
444
445         * config/mips/mips.c (mips_need_mips16_rdhwr_p): New variable.
446         (mips_get_tp): Set it.  Record that __mips16_rdhwr binds locally.
447         (mips_start_unique_function, mips_output_mips16_rdhwr)
448         (mips_code_end): New functions.
449         (TARGET_ASM_CODE_END): Define.
450
451 2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>
452
453         * config/mips/mips.c (mips16_build_call_stub): Add CFI information
454         to stubs with non-sibling calls.
455
456 2012-02-18  Sandra Loosemore  <sandra@codesourcery.com>
457
458         * doc/invoke.texi (-fira-* options): Copy-edit.
459         (ira-* parameters): Copy-edit.
460
461 2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>
462
463         * doc/invoke.texi: Minor copy-edits to bring into conformance with
464         GCC coding conventions.
465
466 2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>
467
468         * doc/invoke.texi: Consistently hyphenate "big-endian"/"little-endian"
469         when used as adjectives.
470
471 2012-02-16  Sandra Loosemore  <sandra@codesourcery.com>
472
473         * doc/invoke.texi: Clean up "that"/"which" confusion.
474
475 2012-02-17  Steven Bosscher  <steven@gcc.gnu.org>
476
477         * system.h: Poison SMALL_REGISTER_CLASSES
478         * config/rl78/rl78.h: Replace SMALL_REGISTER_CLASSES with hook.
479         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES.
480
481 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
482
483         PR tree-optimization/52285
484         * tree-tailcall.c (find_tail_calls): Ignore gimple_clobber_p stmts
485         when deciding if a call is a tail call or tail recursion.
486
487 2012-02-16  Kai Tietz  <ktietz@redhat.com>
488
489         * config/i386/i386.c (legitimate_pic_address_disp_p): Allow
490         interger-constant displacement for UNSPEC_PCREL.
491
492 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
493
494         PR rtl-optimization/52208
495         * ira-costs.c (scan_one_insn): Don't decrease mem_cost
496         for MEMs with REG_EQUIV, if the MEM isn't general_operand.
497
498         PR tree-optimization/52255
499         * tree-vect-loop-manip.c (slpeel_tree_peel_loop_to_edge): If
500         loop->header has virtual PHI, but exit_e->dest doesn't, add
501         virtual PHI to exit_e->dest and adjust all uses after the loop.
502
503         PR debug/52260
504         * dwarf2out.c (copy_decls_walk): Fill in *slot before traversing
505         children with clone_tree_hash, not after it.
506
507 2012-02-16  Iain Sandoe  <iains@gcc.gnu.org>
508
509         * config/darwin.h (ASM_OUTPUT_LABELREF): Add user label prefix for
510         extended identifiers.
511
512 2012-02-16  Jakub Jelinek  <jakub@redhat.com>
513
514         PR middle-end/51929
515         * cgraphunit.c (verify_edge_corresponds_to_fndecl): If node is
516         a same_body_alias, also test whether e->callee isn't a former
517         or current clone of the decl this is a same body alias of.
518
519         PR translation/52264
520         * cgraphunit.c (verify_cgraph_node): Fix a typo.
521
522 2012-02-15  Sandra Loosemore  <sandra@codesourcery.com>
523
524         * doc/invoke.texi: Clean up "n-bit/byte/word" modifiers.
525
526 2012-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>
527
528         PR target/52199
529         * config/rs6000/rs6000.c (rs6000_expand_vector_init): Use
530         force_reg instead of copy_to_reg for better optimization.  Force
531         non-register or memory operands into a register.
532
533 2012-02-15  Andrew MacLeod  <amacleod@redhat.com>
534
535         * extend.texi: Reserve upper bits of memory model for future use.
536
537 2012-01-15  Georg-Johann Lay  <avr@gjlay.de>
538             Anatoly Sokolov <aesok@post.ru>
539             Eric Weddington <eric.weddington@atmel.com>
540
541         PR target/52261
542         * config/avr/avr-devices.c (avr_arch_types): Add avrxmega2,
543         avrxmega4, avrxmega5, avrxmega6, avrxmega7.
544         Rewrite initializers for .macro.
545         * config/avr/avr-mcus.def (AVR_MCU): Add known MCUs:
546         avrxmega2: atxmega16a4, atxmega16d4, atxmega16x1, atxmega32a4
547         atxmega32d4, atxmega32x1.
548         avrxmega4: atxmega64a3, atxmega64d3.
549         avrxmega5: atxmega64a1, atxmega64a1u.
550         avrxmega6: atxmega128a3, atxmega128d3, atxmega192a3, atxmega192d3,
551         atxmega256a3, atxmega256a3b, atxmega256a3bu, atxmega256d3.
552         avrxmega7: atxmega128a1, atxmega128a1u.
553         * config/avr/avr.h (enum avr_arch): Add: ARCH_AVRXMEGA2,
554         ARCH_AVRXMEGA4, ARCH_AVRXMEGA5, ARCH_AVRXMEGA6, ARCH_AVRXMEGA7.
555         (struct base_arch_s): Rename reserved to xmega_p.
556         Rename reserved2 to have_rampd.
557         (AVR_XMEGA): New define.
558         (AVR_HAVE_RAMPD, AVR_HAVE_RAMPX, AVR_HAVE_RAMPY): New defines.
559         (AVR_HAVE_RAMPZ): Change definition to fit xmega.
560         * config/avr/predicates.md (io_address_operand): Take into
561         account SFR offset.
562         (low_io_address_operand): Ditto.
563         (high_io_address_operand): Ditto.
564         * config/avr/avr.md (isa): Add alternatives no_xmega, xmega.
565         (enabled, movhi_sp_r): Use them.
566         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use
567         cpp_define_formatted to built-in define __AVR_ARCH__.
568         (__AVR_XMEGA__): New built-in define.
569         (__AVR_HAVE_RAMPD__): New built-in define.
570         (__AVR_HAVE_RAMPX__): New built-in define.
571         (__AVR_HAVE_RAMPY__): New built-in define.
572         (__AVR_HAVE_RAMPZ__): Change condition when to built-in define it.
573
574         * config/avr/avr.c (avr_addr_t): Add ccp, rampd, rampx, rampy.
575         (avr_option_override): Initialize them.
576         (sreg_rtx, rampd_rtx, rampx_rtx, rampy_rtx): New GTY rtx.
577         (avr_init_expanders): Initialize them. No more block several calls.
578         (emit_push_sfr): New static function.
579         (avr_prologue_setup_frame): Use it to push SREG, RAMPD/X/Y/Z as needed.
580         Handle AVR_XMEGA.
581         (expand_epilogue): Handle AVR_XMEGA. Pop RAMPD/X/Y/Z as needed.
582         (avr_print_operand): Print addreeses as symbols for
583         RAMPX, RAMPY, RAMPD, CCP.
584         (output_movhi): Handle AVR_XMEGA when writing to SP.
585         (avr_out_movhi_mr_r_xmega): New static function.
586         (out_movhi_mr_r): Forward to avr_out_movhi_mr_r_xmega for AVR_XMEGA.
587         (avr_file_start): Print symbol defines for __RAMPX__,  __RAMPY__,
588         __RAMPD__,  __CCP__ as needed.
589
590         * config/avr/multilib.h: Regenerate.
591         * config/avr/t-multilib: Regenerate.
592         * config/avr/avr-tables.opt: Regenerate.
593
594 2012-02-15  Tobias Grosser <grosser@fim.uni-passau.de>
595
596         PR tree-optimization/50561
597         * graphite-flattening.c (lst_project_loop): Do not
598         remove old scattering dimensions after flattening.
599         (lst_do_flatten): Likewise.
600
601 2012-02-15  Georg-Johann Lay  <avr@gjlay.de>
602
603         * doc/extend.texi (AVR Built-in Functions): Remove doc for
604         __builtin_avr_map8, __builtin_avr_map16.
605         Document __builtin_avr_insert_bits.
606
607         * config/avr/avr.md (map_bitsqi, map_bitshi): Remove.
608         (insert_bits): New insn.
609         (adjust_len.map_bits): Rename to insert_bits.
610         (UNSPEC_MAP_BITS): Rename to UNSPEC_INSERT_BITS.
611         * avr-protos.h (avr_out_map_bits): Remove.
612         (avr_out_insert_bits, avr_has_nibble_0xf): New.
613         * config/avr/constraints.md (Cxf,C0f): New.
614         * config/avr/avr.c (avr_cpu_cpp_builtins): Remove built-in
615         defines __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.
616         New built-in define __BUILTIN_AVR_INSERT_BITS.
617         * config/avr/avr.c (TARGET_FOLD_BUILTIN): New define.
618         (enum avr_builtin_id): Add AVR_BUILTIN_INSERT_BITS.
619         (avr_move_bits): Rewrite.
620         (avr_fold_builtin, avr_map_metric, avr_map_decompose): New static
621         functions.
622         (avr_map_op_t): New typedef.
623         (avr_map_op): New static variable.
624         (avr_out_insert_bits, avr_has_nibble_0xf): New functions.
625         (adjust_insn_length): Handle ADJUST_LEN_INSERT_BITS.
626         (avr_init_builtins): Add definition for __builtin_avr_insert_bits.
627         (bdesc_3arg, avr_expand_triop_builtin): New.
628         (avr_expand_builtin): Use them. And handle AVR_BUILTIN_INSERT_BITS.
629         (avr_revert_map, avr_swap_map, avr_id_map, avr_sig_map): Remove.
630         (avr_map_hamming_byte, avr_map_hamming_nonstrict): Remove.
631         (avr_map_equal_p, avr_map_sig_p): Remove.
632         (avr_out_swap_bits, avr_out_revert_bits, avr_out_map_bits): Remove.
633         (bdesc_2arg): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
634         (adjust_insn_length): Remove handling for ADJUST_LEN_MAP_BITS.
635         (enum avr_builtin_id): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
636         (avr_init_builtins): Remove __builtin_avr_map8, __builtin_avr_map16.
637         (avr_expand_builtin): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
638
639 2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>
640
641         * config/c6x/c6x.md (reserve_cycles): New attribute.
642         * config/c6x/c6x.c (c6x_sched_reorder_1): Ensure insns we predicate
643         don't reserve functional units after the branch occurs.
644
645 2012-02-14  Aldy Hernandez  <aldyh@redhat.com>
646
647         PR middle-end/52142
648         * ipa-inline.c (can_inline_edge_p): Do not inline tm_pure
649         functions into non-tm_pure functions.
650
651 2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>
652
653         PR lto/52178
654         * gimple.c (iterative_hash_gimple_type): Use RECORD_OR_UNION_TYPE_P.
655         (iterative_hash_canonical_type): Likewise.
656         * tree-ssa-pre.c (fini_pre): Clean up the CFG only after purging all
657         the dead edges.
658
659 2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>
660
661         * haifa-sched.c (prune_ready_list): Ensure that if there is a
662         sched-group insn, it either remains alone or the entire list is pruned.
663
664 2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>
665
666         * doc/install.texi (Prerequisites): Fix grammar.
667         (Configuration): Likewise.
668
669 2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>
670
671         * doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
672         MPC as part of GCC before describing configuring with --with-gmp etc.
673         (Installing GCC: Configuration): --with-gmp etc. aren't needed if
674         sources are present.
675
676 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
677
678         PR debug/51950
679         * dwarf2out.c (clone_tree_hash): New function.
680         (copy_decls_walk): Use it instead of clone_tree.
681
682 2012-02-14  Richard Guenther  <rguenther@suse.de>
683
684         PR tree-optimization/52244
685         PR tree-optimization/51528
686         * tree-sra.c (analyze_access_subtree): Only create INTEGER_TYPE
687         replacements for integral types.
688
689 2012-02-14  Walter Lee  <walt@tilera.com>
690
691         * config.gcc: Handle tilegx and tilepro.
692         * configure.ac (gcc_cv_as_dwarf2_debug_line): Enable test for
693         tilegx and tilepro.
694         Add HAVE_AS_TLS check for tilegx and tilepro.
695         * configure: Regenerate.
696         * doc/contrib.texi: Add Mat Hostetter and self.
697         * doc/extend.texi (TILE-Gx Built-in Functions): New node.
698         Document instruction intrinsics and network accessing intrinsics.
699         (TILEPro Built-in Functions): New node.  Document instruction
700         intrinsics and network accessing intrinsics.
701         * doc/install.texi (Specific, tilegx-*-linux*): Document it.
702         (Specific, tilepro-*-linux*): Likewise.
703         * doc/invoke.texi (TILE-Gx Options): New section.
704         (TILEPro Options): New section.
705         * doc/md.texi (TILE-Gx): New section.
706         (TILEPro): New section.
707         * common/config/tilegx/tilegx-common.c: New file.
708         * common/config/tilepro/tilepro-common.c: New file.
709         * config/tilegx/constraints.md: New file.
710         * config/tilegx/linux.h: New file.
711         * config/tilegx/mul-tables.c: New file.
712         * config/tilegx/predicates.md: New file.
713         * config/tilegx/sync.md: New file.
714         * config/tilegx/t-tilegx: New file.
715         * config/tilegx/tilegx-builtins.h: New file.
716         * config/tilegx/tilegx-c.c: New file.
717         * config/tilegx/tilegx-generic.md: New file.
718         * config/tilegx/tilegx-modes.def: New file.
719         * config/tilegx/tilegx-multiply.h: New file.
720         * config/tilegx/tilegx-protos.h: New file.
721         * config/tilegx/tilegx.c: New file.
722         * config/tilegx/tilegx.h: New file.
723         * config/tilegx/tilegx.md: New file.
724         * config/tilegx/tilegx.opt: New file.
725         * config/tilepro/constraints.md: New file.
726         * config/tilepro/gen-mul-tables.cc: New file.
727         * config/tilepro/linux.h: New file.
728         * config/tilepro/mul-tables.c: New file.
729         * config/tilepro/predicates.md: New file.
730         * config/tilepro/t-tilepro: New file.
731         * config/tilepro/tilepro-builtins.h: New file.
732         * config/tilepro/tilepro-c.c: New file.
733         * config/tilepro/tilepro-generic.md: New file.
734         * config/tilepro/tilepro-modes.def: New file.
735         * config/tilepro/tilepro-multiply.h: New file.
736         * config/tilepro/tilepro-protos.h: New file.
737         * config/tilepro/tilepro.c: New file.
738         * config/tilepro/tilepro.h: New file.
739         * config/tilepro/tilepro.md: New file.
740         * config/tilepro/tilepro.opt: New file.
741
742 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
743
744         PR tree-optimization/52210
745         * tree-vect-slp.c (vect_get_and_check_slp_defs): Call
746         vect_model_simple_cost with two entry vect_def_type array instead
747         of an address of dt.
748
749 2012-02-14  Richard Guenther  <rguenther@suse.de>
750
751         PR lto/52178
752         * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
753         Do not stream DECL_QUALIFIER.
754         * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.
755         * tree.c (free_lang_data_in_decl): Free DECL_QUALIFIER.
756         (find_decls_types_r): Do not walk DECL_QUALIFIER.
757
758 2012-02-14  Jakub Jelinek  <jakub@redhat.com>
759
760         PR c/52181
761         * c-decl.c (merge_decls): Copy DECL_USER_ALIGN bit from olddecl to
762         newdecl.
763
764 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
765
766         PR bootstrap/52172
767         * cselib.h (cselib_subst_to_values_from_insn): New prototype.
768         * cselib.c (cselib_subst_to_values_from_insn): New function.
769         * sched-deps.c (add_insn_mem_dependence,
770         sched_analyze_1, sched_analyze_2): Use it.
771
772 2012-02-13  Jan Hubicka  <jh@suse.cz>
773
774         PR middle-end/52214
775         * predict.c (predict_paths_for_bb): Fix thinko in prevoius patch.
776
777 2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>
778
779         * gcc.c (LINK_COMMAND_SPEC): Deal with -fgnu-tm.
780         (GTM_SELF_SPECS): Define if not already defined.
781         (driver_self_specs): Add GTM_SELF_SPECS.
782         * config/darwin.h (LINK_COMMAND_SPEC_A): Deal with -fgnu-tm.
783         (GTM_SELF_SPECS): Define.
784         * config/i386/cygwin.h (GTM_SELF_SPECS): Likewise.
785         * config/i386/mingw32.h (GTM_SELF_SPECS): Likewise.
786
787 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
788
789         * cselib.c (expand_loc): Return sp, fp, hfp or cfa base reg right
790         away if seen.
791
792         * cselib.c (dump_cselib_val): Don't assume l->setting_insn is non-NULL.
793
794         PR middle-end/52230
795         * omp-low.c (expand_omp_for): If a static schedule without chunk size
796         has NULL region->cont, force fd.chunk_size to be integer_zero_node.
797
798 2012-02-13  Andrew MacLeod  <amacleod@redhat.com>
799
800         PR c/52190
801         * doc/extend.texi : Fix another __atomic_compare_exchange typo.
802
803 2012-02-13  Richard Guenther  <rguenther@suse.de>
804
805         PR translation/52211
806         * passes.c (enable_disable_pass): Fix typo.
807
808 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
809
810         PR middle-end/52209
811         * expr.c (expand_expr_real_2) <case BIT_NOT_EXPR>: Only expand using
812         XOR for reduce_bit_field if type is unsigned.
813
814 2012-02-12  Eric Botcazou  <ebotcazou@adacore.com>
815
816         * config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): In 64-bit mode,
817         disallow changes from SFmode to mode with different size in FP regs.
818
819 2012-02-12  Robert Millan  <rmh@gnu.org>
820             Gerald Pfeifer <gerald@pfeifer.com>
821
822         * ginclude/stddef.h [__FreeBSD_kernel__] (__size_t): Do not define.
823         Tweak comment.
824
825 2012-02-11  Richard Sandiford  <rdsandiford@googlemail.com>
826
827         PR rtl-optimization/52175
828         * reorg.c (fill_slots_from_thread): Don't apply add/sub optimization
829         to frame-related instructions.
830
831 2012-02-10  Jason Merrill  <jason@redhat.com>
832
833         PR c++/51910
834         * tlink.c (demangled_hash_entry): Change mangled to a VEC.
835         (demangle_new_symbols): Fill it.
836         (scan_linker_output): Walk it.
837         (start_tweaking): Split out from scan_linker_output.
838         (maybe_tweak): Update sym->chosen.
839         * Makefile.in (COLLECT2_OBJS): Add vec.o and gcc-none.o
840
841 2012-02-11  Jakub Jelinek  <jakub@redhat.com>
842
843         PR debug/52132
844         * reg-stack.c (subst_stack_regs_in_debug_insn): Don't use get_true_reg.
845
846 2012-02-11  Uros Bizjak  <ubizjak@gmail.com>
847
848         * compare-elim.c (find_comparisons_in_bb): Eliminate only compares
849         having the same mode as previous compare.
850
851 2012-02-10  Eric Botcazou  <ebotcazou@adacore.com>
852
853         * config/sparc/sparc.c (sparc_flat_expand_prologue): Use emit_use.
854         * config/sparc/sparc.md (UNSPECV_GOTO): Delete.
855         (nonlocal_goto_internal): Likewise.
856         (nonlocal_goto): Emit a use and an indirect jump directly.
857
858 2012-02-10  Andrew MacLeod  <amacleod@redhat.com>
859
860         PR c/52190
861         * doc/extend.texi : Update comments for __atomic_compare_exchange and
862         __atomic_{is,always}_lock_free.
863
864 2012-02-10  Uros Bizjak  <ubizjak@gmail.com>
865
866         PR target/52146
867         * config/i386/i386.c (ix86_legitimate_address_p): Disallow
868         negative constant address for x32.
869
870 2012-02-10  Richard Henderson  <rth@redhat.com>
871
872         * tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
873         * tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
874         for GIMPLE_TRANSACTION.  Tidy if's into a switch.
875
876 2012-02-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
877             Ira Rosen  <irar@il.ibm.com>
878
879         PR tree-optimization/50031
880         * targhooks.c (default_builtin_vectorization_cost): Handle
881         vec_promote_demote.
882         * target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
883         * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
884         all types of reduction and pattern statements.
885         (vect_estimate_min_profitable_iters): Likewise.
886         * tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
887         (vect_get_load_cost): Use vec_perm for permutations; add dump logic
888         for explicit realigns.
889         (vectorizable_conversion): Call vect_model_promotion_demotion_cost.
890         * config/spu/spu.c (spu_builtin_vectorization_cost): Handle
891         vec_promote_demote.
892         * config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
893         * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
894         vec_perm for VSX and handle vec_promote_demote.
895
896 2012-02-10  Jakub Jelinek  <jakub@redhat.com>
897
898         PR middle-end/52177
899         * builtins.c (fold_builtin_atomic_always_lock_free,
900         expand_builtin_atomic_always_lock_free,
901         fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
902         Return and/or test boolean_true_node/boolean_false_node instead of
903         integer_one_node/integer_zero_node.
904
905 2012-02-10  Jan Hubicka  <jh@suse.cz>
906
907         PR middle-end/48600
908         * predict.c (predict_paths_for_bb): Prevent looping.
909         (predict_paths_leading_to_edge, predict_paths_leading_to): Update.
910
911 2012-02-10  Roman Zhuykov  <zhroma@ispras.ru>
912
913         * config/arm/arm.c (output_move_double): In one case properly
914         count number of instructions that will be emitted.
915
916 2012-02-10  Richard Guenther  <rguenther@suse.de>
917
918         PR translation/52193
919         * cgraphunit.c (cgraph_mark_functions_to_output): Fix typo.
920
921 2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>
922
923         PR middle-end/52140
924         * dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.
925
926 2012-02-09  Jakub Jelinek  <jakub@redhat.com>
927
928         PR debug/52165
929         * var-tracking.c (emit_note_insn_var_location): If
930         EMIT_NOTE_BEFORE_INSN and insn is NOTE_INSN_CALL_ARG_LOCATION,
931         emit it before next non-NOTE_INSN_CALL_ARG_LOCATION
932         non-NOTE_DURING_CALL_P insn.
933
934 2012-02-09  Bin Cheng  <bin.cheng@arm.com>
935
936         PR middle-end/51867
937         * builtins.c (expand_builtin): Don't check DECL_ASSEMBLER_NAME_SET_P.
938
939 2012-02-08  Magnus Granberg  <zorry@gentoo.org>
940
941         PR driver/48524
942         * gcc.c (switch_matches) Support switches with separated form,
943         -D and -U.
944
945 2012-02-08  Georg-Johann Lay  <avr@gjlay.de>
946
947         * config/avr/avr.md (SREG_ADDR): Remove constant definition.
948         (SP_ADDR): Ditto.
949         (RAMPZ_ADDR): Ditto.
950         * config/avr/avr.c (avr_addr_t): New typedef.
951         (avr_addr): New struct to hold RAM address of SPL, SPH, RAMPZ, SREG.
952         (avr_init_expanders): Initialize it.
953         (expand_prologue): Use avr_addr instead of RAMPZ_ADDR, SP_ADDR,
954         SREG_ADDR.
955         (expand_epilogue): Ditto.
956         (avr_print_operand): Ditto.
957         (avr_file_start): Ditto.
958         (avr_emit_movmemhi): Ditto.
959
960 2012-02-08  Richard Guenther  <rguenther@suse.de>
961
962         PR tree-optimization/46886
963         * tree-flow.h (do_while_loop_p): Declare.
964         * tree-ssa-loop-ch.c (do_while_loop_p): Export.
965         * tree-parloops.c (parallelize_loops): Only parallelize do-while loops.
966
967 2012-02-08  Andrew MacLeod  <amacleod@redhat.com>
968
969         * optabs.c (expand_atomic_load): Do not assume compare_and_swap will
970         always succeed for integers larger than a native word.
971
972 2012-02-08  Richard Guenther  <rguenther@suse.de>
973
974         PR rtl-optimization/52170
975         * simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
976         properly handle integer vector modes.
977
978 2012-02-08  Jakub Jelinek  <jakub@redhat.com>
979
980         PR gcov-profile/52150
981         * coverage.c: Include target.h.
982         (build_var): Call targetm.strip_name_encoding on the assembler name.
983         Change one _ into . or $ if the target allows it.
984         * Makefile.in (coverage.o): Depend on $(TARGET_H).
985
986         PR rtl-optimization/52139
987         * cfgrtl.c (cfg_layout_merge_blocks): If BB_END
988         is a BARRIER after emit_insn_after_noloc, move BB_END
989         to the last non-BARRIER insn before it.
990
991 2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>
992
993         PR middle-end/24306
994         * config/mips/mips.c (mips_std_gimplify_va_arg_expr): New function.
995         (mips_gimplify_va_arg_expr): Call it instead of
996         std_gimplify_va_arg_expr.
997
998 2012-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
999
1000         * config/rs6000/rs6000.c (rs6000_trampoline_init): Fix error
1001         message for -mno-pointers-to-nested-function.
1002
1003 2012-02-07  Eric Botcazou  <ebotcazou@adacore.com>
1004
1005         PR middle-end/51994
1006         * expr.c (get_inner_reference): If there is an offset, add a negative
1007         bit position to it (if any).
1008
1009 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
1010
1011         PR rtl-optimization/52060
1012         * combine.c (try_combine): Add i0src_copy and i0src_copy2 variables,
1013         copy i1src to i1src_copy whenever added_sets_2 && i1_feeds_i2_n already
1014         before i1dest -> i1src substitution in newpat, copy i0src to i0src_copy
1015         and/or i0src_copy2 when needed.
1016
1017 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
1018
1019         * gcc.c (main): Don't look for lto-wrapper or lto-wrapper
1020         or LTOPLUGINSONAME if have_c.
1021
1022         * config/freebsd-spec.h: Add comment about what macros can be defined
1023         in this header.
1024         (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
1025         * config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
1026         here instead.
1027
1028 2012-02-07  Richard Guenther  <rguenther@suse.de>
1029
1030         * gimple-pretty-print.c (dump_gimple_phi): Avoid excessive
1031         newline in -alias dumps.
1032
1033 2012-02-07  Kai Tietz  <ktietz@redhat.com>
1034             Dave Korn  <dave.korn.cygwin@gmail.com>
1035
1036         PR target/40068
1037         * config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition):
1038         Take care that typinfo gets dllexport-attribute.
1039
1040 2012-02-07  Jakub Jelinek  <jakub@redhat.com>
1041
1042         PR middle-end/52074
1043         * expr.c (expand_expr_addr_expr_1): For CONSTANT_CLASS_P or CONST_DECL
1044         if modifier < EXPAND_SUM call force_operand on the result.
1045
1046 2012-02-07  Joern Rennecke  <joern.rennecke@embecosm.com>
1047
1048         * config/epiphany/epiphany.h (ASM_DECLARE_FUNCTION_SIZE): Redefine,
1049         adding __forwarder_dst__ prefix if a forwarder_section attribute is
1050         present.
1051         (epiphany_function_type): Replace types for specific interrupts with
1052         EPIPHANY_FUNCTION_INTERRUPT.
1053         (EPIPHANY_INTERRUPT_P): Update.
1054         * config/epiphany/epiphany.c (epiphany_handle_forwarder_attribute):
1055         New static function.
1056         (epiphany_attribute_table) <interrupt>: min_len is 0, max_len is 9.
1057         <disinterrupt>: Affects type identity.
1058         (epiphany_handle_interrupt_attribute): Handle variable number of
1059         arguments.
1060         (epiphany_compute_function_type): Update for new
1061         epiphany_function_type definition.
1062         (epiphany_expand_prologue): Don't save (reg:DI GPR_0) for interrupt
1063         handlers with a longcall forwarder.
1064         (epiphany_start_function): Handle multiple interrupt arguments and/or
1065         forwarder_section attribute.
1066
1067         * config/epiphany/epiphany.h (LIB_SPEC): Link libc again after
1068         libgloss.
1069
1070 2012-02-07  Alan Modra  <amodra@gmail.com>
1071
1072         PR target/52107
1073         * config/rs6000/rs6000.c (rs6000_emit_move): Don't create DImode
1074         subregs of TFmode.
1075
1076 2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1077
1078         PR tree-optimization/50969
1079         * tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
1080         use vec_perm rather than vector_stmt.
1081         (vect_model_load_cost): Likewise.
1082         * config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
1083         vec_perm to be the same as other vector statements.
1084         * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
1085         cost of vec_perm for TARGET_VSX.
1086
1087 2012-02-06  Richard Guenther  <rguenther@suse.de>
1088
1089         PR tree-optimization/52115
1090         * tree-sra.c (access_has_replacements_p): New function.
1091         (sra_modify_assign): Use it to decide whether a use is uninitialized.
1092
1093 2012-02-06  Patrick Marlier  <patrick.marlier@gmail.com>
1094
1095         PR middle-end/52047
1096         * trans-mem.c (expand_call_tm): Add an assertion.
1097         * calls.c (flags_from_decl_or_type): Add ECF_TM_PURE to 'no vops'
1098         functions.
1099
1100 2012-02-06  Richard Guenther  <rguenther@suse.de>
1101
1102         PR tree-optimization/50955
1103         * tree-ssa-loop-ivopts.c (get_computation_cost_at): Artificially
1104         raise cost of expressions that replace an address with an
1105         expression based on a different pointer.
1106
1107 2012-02-06  Jakub Jelinek  <jakub@redhat.com>
1108
1109         PR target/52129
1110         * calls.c (mem_overlaps_already_clobbered_arg_p): If val is
1111         CONST_INT_P, subtract resp. add crtl->args.pretend_args_size to it.
1112
1113 2012-02-06  Jonathan Wakely  <jwakely.gcc@gmail.com>
1114
1115         PR c++/48680
1116         * doc/invoke.texi (C++ Dialect Options): Use @option markup for
1117         -Weffc++ and specify guidelines come from second edition.
1118
1119 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
1120
1121         * config/mips/mips.md (sibcall_internal, sibcall_value_internal)
1122         (sibcall_value_multiple_internal, call_split, call_internal_direct)
1123         (call_direct_split, call_value_split, call_value_internal_direct)
1124         (call_value_direct_split, call_value_multiple_split): Use jal and
1125         jal_macro attributes.
1126
1127 2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>
1128
1129         * reload1.c (reload_regs_reach_end_p): Replace with...
1130         (reload_reg_rtx_reaches_end_p): ...this function.
1131         (new_spill_reg_store): Update commentary.
1132         (emit_input_reload_insns): Don't clear new_spill_reg_store here.
1133         (emit_output_reload_insns): Check reload_reg_rtx_reaches_end_p
1134         before setting new_spill_reg_store.
1135         (emit_reload_insns): Use a separate loop to clear new_spill_reg_store.
1136         Use reload_reg_rtx_reaches_end_p instead of reload_regs_reach_end_p.
1137         Also use reload_reg_rtx_reaches_end_p when reading new_spill_reg_store
1138         for non-spill reload registers.
1139
1140 2012-02-05  Ira Rosen  <irar@il.ibm.com>
1141
1142         PR tree-optimization/52091
1143         * tree-vectorizer.h (vect_is_simple_use): Add an argument.
1144         (vect_is_simple_use_1): Likewise.
1145         * tree-vect-loop.c (vectorizable_reduction): Update calls
1146         to vect_is_simple_use_1 and vect_is_simple_use.
1147         (vectorizable_live_operation): Likewise.
1148         * tree-vect-patterns.c (widened_name_p,
1149         vect_recog_vector_vector_shift_pattern, check_bool_pattern): Likewise.
1150         * tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
1151         vectorizable_call, vectorizable_conversion, vectorizable_assignment,
1152         vectorizable_shift,vectorizable_operation, vectorizable_store,
1153         vectorizable_load): Likewise.
1154         (vect_is_simple_cond): Add an argument, pass it to
1155         vect_is_simple_use_1.
1156         (vectorizable_condition): Update calls to vect_is_simple_cond,
1157         vect_is_simple_use.
1158         (vect_is_simple_use): Add an argument, the statement in which
1159         OPERAND is used.  Check that if OPERAND's def stmt is a double
1160         reduction phi node, the use is a phi node too.
1161         (vect_is_simple_use_1): Add an argument, pass it to
1162         vect_is_simple_use.
1163         * tree-vect-slp.c (vect_get_and_check_slp_defs): Update a call
1164         to vect_is_simple_use.
1165
1166 2012-02-04  Jakub Jelinek  <jakub@redhat.com>
1167
1168         PR rtl-optimization/52095
1169         * modulo-sched.c (dump_insn_locator): New function.
1170         (loop_canon_p, sms_schedule): Use it.
1171
1172         PR rtl-optimization/52113
1173         * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
1174         even for decomposable shift/zext insns.
1175
1176 2012-02-03  Jakub Jelinek  <jakub@redhat.com>
1177             Zdenek Dvorak  <ook@ucw.cz>
1178
1179         PR rtl-optimization/52092
1180         * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
1181         on get_iv_value result.
1182
1183 2012-02-02  Andrew Pinski  <apinski@cavium.com>
1184
1185         PR middle-end/47982
1186         PR middle-end/43967
1187         * doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.
1188
1189 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
1190
1191         PR middle-end/48071
1192         * diagnostic.c (diagnostic_finish): Remove trailing newlines.
1193
1194 2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>
1195
1196         PR rtl-optimization/49800
1197         * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
1198         (sched_finish): Call regstat_free_n_sets_and_refs.
1199
1200 2012-02-02  Jia Liu  <proljc@gmail.com>
1201
1202         * config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
1203         than operand 2.
1204
1205 2012-02-02  Jan Hubicka  <jh@suse.cz>
1206             Tom de Vries  <tom@codesourcery.com>
1207
1208         PR middle-end/51998
1209         * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
1210         * varpool.c (varpool_analyze_pending_decls): Likewise.
1211
1212 2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
1213             Jayant R Sonar <jayant.sonar@kpitcummins.com>
1214
1215         * config.gcc: Add cr16-* support.
1216
1217         * doc/extend.texi: Document cr16 extensions.
1218         * doc/install.texi: Document cr16 install.
1219         * doc/invoke.texi: Document cr16 options.
1220         * doc/md.texi: Document cr16 constraints.
1221
1222         * common/config/cr16/cr16-common.c: New file.
1223         * config/cr16/cr16.c: New file.
1224         * config/cr16/cr16.h: New file.
1225         * config/cr16/cr16.md: New file.
1226         * config/cr16/cr16.opt: New file.
1227         * config/cr16/cr16-protos.h: New file.
1228         * config/cr16/predicates.md: New file.
1229         * config/cr16/constraints.md: New file.
1230         * config/cr16/t-cr16: New file.
1231
1232 2012-02-02  Jakub Jelinek  <jakub@redhat.com>
1233
1234         PR target/52086
1235         * config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
1236         that operands[2] is either immediate, or q_regs_operand.
1237
1238         PR tree-optimization/52073
1239         * tree-vect-stmts.c (vect_mark_relevant): When checking uses of
1240         a pattern stmt for pattern uses, ignore uses outside of the loop.
1241
1242 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
1243
1244         * config/avr/avr.c: Resolve all AS1 and AS2 macros.
1245         * config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
1246         (OUT_AS1, OUT_AS2): Remove.
1247
1248 2012-02-01  Georg-Johann Lay  <avr@gjlay.de>
1249
1250         PR rtl-optimization/51374
1251         * combine.c (can_combine_p): Don't allow volatile_refs_p insns
1252         to cross other volatile_refs_p insns.
1253
1254 2012-02-01  Richard Guenther  <rguenther@suse.de>
1255
1256         * doc/invoke.texi (fno-inline): Clarify documentation.
1257         (finline-small-functions): Likewise.
1258         (finline-functions): Likewise.
1259         * common.opt (finline): Adjust comment and documentation.
1260         (finline-small-functions): Clarify documentation.
1261         (finline-functions): Likewise.
1262         (finline-functions-called-once): Likewise.
1263
1264 2012-02-01  Tristan Gingold  <gingold@adacore.com>
1265
1266         * c-typeck.c (composite_type): Keep mode for pointers.
1267
1268 2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>
1269
1270         * function.h (regno_reg_rtx): Adjust comment.
1271         * reginfo.c (init_reg_modes_target): Only use the previous mode
1272         if it fits within one register.  Remove MIPS comment.
1273
1274 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
1275
1276         PR bootstrap/52058
1277         * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.
1278
1279 2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1280
1281         * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
1282         to srak instruction.
1283
1284 2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1285
1286         * config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true condition.
1287
1288 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
1289
1290         PR bootstrap/52041
1291         PR bootstrap/52039
1292         PR target/51974
1293         * ipa-prop.c (detect_type_change_1): Call ao_ref_init.
1294
1295 2012-01-31  Richard Guenther  <rguenther@suse.de>
1296
1297         PR tree-optimization/51528
1298         * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
1299         assigns.
1300
1301 2012-01-31  Jakub Jelinek  <jakub@redhat.com>
1302
1303         PR bootstrap/52041
1304         PR bootstrap/52039
1305         PR target/51974
1306         * ree.c (add_removable_extension): Change def_map argument
1307         to unsigned *, store in def_map 1 + offset into *insn_list vector
1308         instead of pointers into the vector.
1309         (find_removable_extensions): Adjust caller.
1310
1311 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
1312
1313         * config/avr/avr.md: Resolve all AS1 and AS2 macros.
1314         Transform all "* quoted-c-code" to { c-code }.
1315         Remove redundant test for "optimize" in combine patterns.
1316         Move (include "avr-dimode.md") to end of file.
1317
1318 2012-01-30  Bin Cheng  <bin.cheng@arm.com>
1319
1320         PR target/51835
1321         * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
1322         for __aeabi_d2iz/__aeabi_d2uiz with hard-float.
1323
1324 2012-01-30  Richard Guenther  <rguenther@suse.de>
1325
1326         PR tree-optimization/52028
1327         * tree-loop-distribution.c (ldist_gen): Properly update
1328         virtual SSA form.
1329
1330 2012-01-30  Jakub Jelinek  <jakub@redhat.com>
1331
1332         PR debug/52027
1333         * dwarf2out.c (dwarf2out_switch_text_section): Don't call
1334         set_cur_line_info_table if not emitting debug info.
1335
1336         PR tree-optimization/52046
1337         * tree-vect-patterns.c (check_bool_pattern): Give up if
1338         a comparison could throw.
1339
1340         PR debug/52048
1341         * tree-ssa-tail-merge.c (local_def): Ignore debug uses.
1342
1343 2012-01-30  Richard Guenther  <rguenther@suse.de>
1344
1345         PR tree-optimization/52045
1346         * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
1347         SSA form if cfgcleanup did anything.
1348
1349 2012-01-30  Richard Guenther  <rguenther@suse.de>
1350
1351         PR tree-optimization/52045
1352         * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
1353         before computing final todo.
1354
1355 2012-01-30  Richard Guenther  <rguenther@suse.de>
1356
1357         PR tree-optimization/51528
1358         * tree-sra.c (sra_modify_assign): Re-factor in preparation
1359         for PR51528 fix.
1360
1361 2012-01-30  Paolo Bonzini  <bonzini@gnu.org>
1362
1363         * df-problems.c (df_kill_notes): Check that the use refers
1364         to the note under examination.
1365
1366 2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>
1367
1368         PR target/51920
1369         * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
1370         parameter and use short-lived pseudos.
1371         (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
1372         (sparc_expand_vector_init): Const-ify local variables and adjust
1373         calls to above functions.
1374
1375 2012-01-30  Georg-Johann Lay  <avr@gjlay.de>
1376
1377         * config/avr/avr.c (out_movqi_mr_r): Fix length computation.
1378
1379 2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>
1380
1381         * doc/invoke.texi: Make usage of "compile time" and
1382         "run time"/"runtime" consistent throughout the file.
1383
1384 2012-01-29  Uros Bizjak  <ubizjak@gmail.com>
1385
1386         * config/alpha/alpha.c (alpha_option_override): Default to
1387         full IEEE compliance mode for Go language.
1388
1389 2011-01-29  Tijl Coosemans  <tijl@coosemans.org>
1390
1391         * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
1392         (LINK_SSP_SPEC): Define.
1393
1394 2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1395
1396         PR target/51871
1397         * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
1398         stubs.
1399
1400 2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>
1401
1402         * doc/invoke.texi: Correct hyphenation of "floating point",
1403         "double precision", and related terminology throughout the file.
1404
1405 2012-01-28  Jakub Jelinek  <jakub@redhat.com>
1406
1407         PR target/52006
1408         * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
1409         arm_general_register_operand predicate for operand 2 instead of
1410         register_operand.
1411
1412 2012-01-27  Ian Lance Taylor  <iant@google.com>
1413
1414         PR go/47656
1415         * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
1416         * builtins.c (expand_builtin_init_trampoline): Add onstack
1417         parameter.  Change caller.
1418         (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
1419         * tree.c (build_common_builtin_nodes): Declare
1420         __builtin_init_heap_trampoline.
1421
1422 2012-01-27  Georg-Johann Lay  <avr@gjlay.de>
1423
1424         * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
1425         tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
1426         * config/avr/avr.c: Ditto.
1427         (avr_regnames): Remove because unused.
1428         * config/avr/avr.md (*cpse.ne): New peephole.
1429         (*cpse.eq): New peephole from former cpse peepholes.
1430
1431 2012-01-27  Michael Eager  <eager@eagercon.com>
1432
1433         * config/microblaze.c (microblaze_emit_compare): Correct
1434         test after pcmp instruction.
1435
1436 2012-01-27  Richard Guenther  <rguenther@suse.de>
1437
1438         PR tree-optimization/52020
1439         * tree-sra.c (sra_modify_assign): Do not transform clobbers.
1440
1441 2012-01-27  Richard Guenther  <rguenther@suse.de>
1442
1443         * ipa-pure-const.c (check_stmt): Clobbers do not make a
1444         function non-const/pure.
1445
1446 2012-01-27  Richard Guenther  <rguenther@suse.de>
1447
1448         PR tree-optimization/50444
1449         * tree-sra.c (build_ref_for_offset): Properly adjust the
1450         MEM_REF type for unaligned accesses.
1451
1452 2012-01-27  Richard Guenther  <rguenther@suse.de>
1453
1454         PR tree-optimization/50444
1455         * expr.c (mem_ref_refers_to_non_mem_p): New function.
1456         (expand_assignment): Use it.  Properly handle misaligned
1457         bases when expanding stores to component references.
1458         (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
1459         refactor that case.
1460
1461 2012-01-27  Andrey Belevantsev  <abel@ispras.ru>
1462
1463         PR middle-end/51389
1464         * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
1465         * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
1466         * tree-data-ref.c (find_data_references_in_loop): Make static.
1467         (compute_all_dependences): Change return type to bool.  Bail out
1468         for too many datarefs in a loop.  Move the hunk resetting the data
1469         dependences vector from ...
1470         (compute_data_dependences_for_loop): ... here.  Account for
1471         compute_all_dependences returning false.
1472         (compute_data_dependences_for_bb): Likewise.
1473         * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
1474         * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.
1475
1476 2012-01-27  Richard Guenther  <rguenther@suse.de>
1477
1478         PR middle-end/51959
1479         * expr.c (store_field): Use the alias-set of the scratch memory
1480         for storing to it.
1481
1482 2012-01-27  Tom de Vries  <tom@codesourcery.com>
1483
1484         PR tree-optimization/51990
1485         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
1486         WITH_SIZE_EXPR.
1487         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.
1488
1489 2012-01-27  Jakub Jelinek  <jakub@redhat.com>
1490
1491         PR debug/52001
1492         * var-tracking.c (reverse_op): Don't add any reverse operation
1493         if V already has any constant locations.
1494
1495 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
1496
1497         * doc/invoke.texi: Correct usage of "command line" (noun)
1498         vs "command-line" (adjective) throughout.
1499
1500 2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>
1501
1502         * doc/invoke.texi (Language Independent Options): Move
1503         -Wcoverage-mismatch blurb from here....
1504         (Warning Options): ...to here.
1505
1506 2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>
1507
1508         * config/rs6000/rs6000.c (rs6000_option_override_internal):
1509         Set rs6000_always_hint to false for 476.
1510
1511 2012-01-27  Matthias Klose  <doko@ubuntu.com>
1512
1513         * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
1514           system root.
1515         * incpath.c (add_standard_paths): Likewise.
1516
1517 2012-01-27  Richard Henderson  <rth@redhat.com>
1518
1519         * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
1520         * config/m68k/sync.md (atomic_test_and_set): Rename from
1521         sync_test_and_setqi and adjust the operands.
1522         (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
1523         and unconditionally enable.
1524
1525 2012-01-27  Richard Henderson  <rth@redhat.com>
1526
1527         * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
1528         * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
1529         (ldstub): Rename from ldstubqi.
1530         (ldstub<I24MODE>): Remove.
1531
1532 2012-01-27  Richard Henderson  <rth@redhat.com>
1533
1534         * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
1535         * c-cppbuiltin.c (cpp_atomic_builtins): Define
1536         __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
1537         * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
1538         * doc/tm.texi: Rebuild.
1539
1540 2012-01-27  Richard Henderson  <rth@redhat.com>
1541
1542         * optabs.c (gen_atomic_test_and_set): Remove default.
1543         (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.
1544
1545 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
1546
1547         PR rtl-optimization/51978
1548         * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
1549         (combine_reaching_defs): Likewise.
1550         (struct re_info): Remove.
1551         (add_removable_extension): Remove x and data arguments,
1552         add insn, insn_list and def_map.  Use the arguments directly
1553         instead of using struct re_info.
1554         (find_removable_extensions): Don't call add_removable_extension
1555         through note_stores, instead just call it with single_set
1556         result if non-NULL.
1557         (find_and_remove_re): Pass curr_cand->expr instead of
1558         PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.
1559
1560 2012-01-26  Michael Matz  <matz@suse.de>
1561
1562         PR tree-optimization/46590
1563         * cfgexpand.c: Revert last change (r183305).
1564         * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
1565         regs.
1566         * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
1567         checking for emptiness.
1568
1569 2012-01-26  Jakub Jelinek  <jakub@redhat.com>
1570
1571         PR middle-end/51895
1572         * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
1573         non-addressable non-BLKmode base correctly.
1574
1575 2012-01-26  Michael Matz  <matz@suse.de>
1576
1577         PR tree-optimization/48794
1578         * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
1579         regions referenced from RESX/EH_DISPATCH.
1580
1581 2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1582
1583         * config/s390/s390.h: Make BRANCH_COST an option.
1584         * config/s390/s390.opt: New option -mbranch-cost.
1585
1586 2012-01-26  Richard Henderson  <rth@redhat.com>
1587
1588         Revert 2012-01-24 change:
1589         * trans-mem.c (requires_barrier): Do not instrument thread local
1590         variables and emit save/restore for them.
1591
1592 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
1593
1594         PR middle-end/51986
1595         * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
1596         for pat == 0.
1597
1598 2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>
1599
1600         * config/mips/mips.c (mips_small_data_pattern_1): Don't process
1601         ASM_OPERANDS.
1602
1603 2012-01-25  Georg-Johann Lay  <avr@gjlay.de>
1604
1605         PR target/49868
1606         Rename __pgm to __flash.
1607         Rename __pgm1 to __flash1.
1608         Rename __pgm2 to __flash2.
1609         Rename __pgm3 to __flash3.
1610         Rename __pgm4 to __flash4.
1611         Rename __pgm5 to __flash5.
1612         Rename __pgmx to __memx.
1613         * doc/extend.texi (AVR Named Address Spaces)
1614         Rename address space names as indicated above.
1615         * config/avr/avr.c (avr_addrspace): Ditto.
1616
1617         * config/avr/avr-protos.h
1618         (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
1619         (avr_mem_pgm_p): Rename to avr_mem_flash_p.
1620         * config/avr/predicates.md: Ditto.
1621         * config/avr/avr.c Ditto, and
1622         (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
1623         (avr_decl_pgm_p): Rename to avr_decl_flash_p.
1624
1625         * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
1626         (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
1627         (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
1628         (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
1629         (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
1630         (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
1631         (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
1632         * config/avr/avr.c: Ditto.
1633         * config/avr/avr.md: Ditto.
1634
1635 2012-01-25  Jason Merrill  <jason@redhat.com>
1636
1637         PR c++/51992
1638         * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.
1639
1640 2012-01-25  Jakub Jelinek  <jakub@redhat.com>
1641
1642         PR tree-optimization/51987
1643         * tree-data-ref.c (get_references_in_stmt): Handle references in
1644         non-volatile GIMPLE_ASM.
1645
1646 2012-01-25  Richard Guenther  <rguenther@suse.de>
1647
1648         * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
1649         bases are dereferenced.
1650
1651 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
1652
1653         PR rtl-optimization/48374
1654         * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.
1655
1656 2012-01-25  Andrey Belevantsev  <abel@ispras.ru>
1657
1658         * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
1659         compute_data_dependences_for_loop returns false.
1660         * tree-parloops.c (loop_parallel_p): Likewise.
1661
1662 2012-01-25  Richard Guenther  <rguenther@suse.de>
1663
1664         * tree.h (get_pointer_alignment_1): Declare.
1665         * builtins.c (get_pointer_alignment_1): New function.
1666         (get_pointer_alignment): Use it.
1667
1668 2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
1669
1670         PR rtl-optimization/48308
1671         * combine.c (enum undo_kind): Add UNDO_LINKS.
1672         (struct undo): Add member l to other_contents and where.
1673         (do_SUBST_LINK): New.
1674         (SUBST_LINK): New.
1675         (try_combine): Handle LOG_LINKS for the dummy i1 case.
1676         (undo_all): Handle UNDO_LINKS.
1677
1678 2012-01-25  Richard Henderson  <rth@redhat.com>
1679
1680         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
1681         mem inputs.
1682
1683 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1684
1685         * optabs.c (gen_atomic_test_and_set): Use each argument.
1686
1687 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1688
1689         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
1690         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
1691         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
1692         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
1693         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
1694         TARGET_PAIRED_SINGLE_FLOAT.
1695
1696 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1697
1698         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
1699         (in_struct, return_val): Remove MEM documentation.
1700         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
1701         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
1702         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
1703         and MEM_SCALAR.
1704         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
1705         * cfgexpand.c (add_alias_set_conflicts): Likewise.
1706         * expr.c (store_field): Likewise.
1707         * function.c (assign_stack_temp_for_type): Likewise.
1708         * ifcvt.c (noce_try_cmove_arith): Likewise.
1709         * reload1.c (reload): Likewise.
1710         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
1711         (alpha_set_memflags): Likewise.
1712         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
1713
1714 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
1715
1716         * rtl.h (true_dependence, canon_true_dependence): Remove varies
1717         parameter.
1718         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
1719         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
1720         (true_dependence_1, true_dependence, canon_true_dependence): Remove
1721         varies parameter.
1722         * cselib.c (cselib_rtx_varies_p): Delete.
1723         (cselib_invalidate_mem): Update call to canon_true_dependence.
1724         * dse.c (record_store, check_mem_read_rtx): Likewise.
1725         (scan_reads_nospill): Likewise.
1726         * cse.c (check_dependence): Likewise.
1727         (cse_rtx_varies_p): Delete.
1728         * expr.c (safe_from_p): Update call to true_dependence.
1729         * ira.c (validate_equiv_mem_from_store): Likewise.
1730         (memref_referenced_p): Likewise.
1731         * postreload-gcse.c (find_mem_conflicts): Likewise.
1732         * sched-deps.c (sched_analyze_2): Likewise.
1733         * store-motion.c (load_kills_store): Likewise.
1734         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
1735         * gcse.c (mems_conflict_for_gcse_p): Likewise.
1736         (compute_transp): Update call to canon_true_dependence.
1737
1738 2012-01-25  Richard Henderson  <rth@redhat.com>
1739
1740         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
1741         (maybe_emit_atomic_test_and_set): New.
1742         (expand_sync_lock_test_and_set): Use it.
1743         (expand_atomic_test_and_set): Likewise.
1744         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
1745         the implementation; clarify implementation defined details.
1746         * doc/md.texi (atomic_test_and_set): Document.
1747
1748 2012-01-25  Richard Henderson  <rth@redhat.com>
1749
1750         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
1751
1752 2012-01-25  Richard Henderson  <rth@redhat.com>
1753
1754         PR target/51968
1755         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
1756         to effect no-op split.
1757
1758 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
1759
1760         PR lto/51698
1761         * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
1762         (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
1763         (BT_FN_VOID_PTR_INT_SIZE): New.
1764         (BT_FN_UINT_UINT_VAR): Remove.
1765         (BT_FN_UINT32_UINT32_VAR): New.
1766         (BT_FN_DOUBLE_VPTR): Remove.
1767         (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.
1768
1769         * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
1770         (_ITM_changeTransactionMode): Same.
1771         (_ITM_memmoveRtWt): Change return type to void.
1772         (_ITM_memcpyRtWt): Same.
1773         (_ITM_memsetW): Same.
1774         (_ITM_RaRD): Change types to double.
1775         (_ITM_RD): Same.
1776         (_ITM_RaWD): Same.
1777         (_ITM_RfWD): Same.
1778
1779         * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.
1780
1781 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
1782             Patrick Marlier  <patrick.marlier@gmail.com>
1783
1784         * trans-mem.c (requires_barrier): Do not instrument thread local
1785         variables and emit save/restore for them.
1786
1787 2012-01-24  Jason Merrill  <jason@redhat.com>
1788
1789         PR c++/51812
1790         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
1791         output static aliases.
1792
1793 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
1794
1795         PR driver/47249
1796         * common.opt (-pie, -shared, pie, shared): Change from Common to
1797         Driver.
1798         * gcc.c (display_help): Display help for -pie and -shared.
1799
1800 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
1801
1802         PR target/49868
1803         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
1804         Remove note on size/offset limitation.
1805         (AVR Variable Attributes): Add example how to read data located
1806         with progmem.  Refer to named address spaces.
1807         * doc/invoke.texi (AVR Options): Fix typo.
1808
1809 2012-01-24  Richard Guenther  <rguenther@suse.de>
1810
1811         Forward-port to trunk
1812         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
1813
1814         PR middle-end/45678
1815         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
1816         op0 isn't sufficiently aligned and there is movmisalignM
1817         insn for mode, use it to load op0 into a temporary register.
1818
1819 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
1820
1821         PR target/51957
1822         * target.def (const_not_ok_for_debug_p): New hook.
1823         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
1824         documentation.
1825         * doc/tm.texi: Regenerated.
1826         * dwarf2out.c (const_ok_for_output_1): If
1827         targetm.const_not_ok_for_debug_p returns true, fail.
1828         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
1829         function.
1830         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
1831
1832 2012-01-23  Kai Tietz  <ktietz@redhat.com>
1833
1834         PR target/51900
1835         * config/i386/predicates.md (symbolic_operand): Allow
1836         UNSPEC_PCREL as PIC expression for lea.
1837         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
1838         * config/i386/i386.c (ix86_delegitimize_address): Handle
1839         UNSPEC_PCREL for none-MEM, too.
1840
1841 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
1842
1843         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
1844         (ipa_tm_create_version_alias): Same.
1845
1846 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
1847
1848         PR libitm/51830
1849         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
1850         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
1851
1852 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
1853             Patrick Marlier  <patrick.marlier@gmail.com>
1854             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
1855
1856         PR lto/51916
1857         * lto-wrapper.c (run_gcc): Pass the LTO section name to
1858         simple_object_start_read.
1859
1860 2012-01-23  Richard Guenther  <rguenther@suse.de>
1861
1862
1863         PR tree-optimization/51895
1864         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
1865         parameter decomposition into BLKmode components.
1866
1867 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
1868
1869         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
1870         fake variables for restrict-qualified pointers whose pointed-to type
1871         contains a placeholder.
1872
1873 2012-01-23  Richard Guenther  <rguenther@suse.de>
1874
1875         PR tree-optimization/51949
1876         * ipa-split.c (execute_split_functions): Do not split malloc functions.
1877
1878 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
1879
1880         PR rtl-optimization/51933
1881         * ree.c (transform_ifelse): Return true right away if dstreg is
1882         already wider or equal to cand->mode.
1883         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
1884         (make_defs_and_copies_lists): Remove defs_list and copies_list
1885         arguments, add state argument, just truncate state->work_list
1886         instead of always allocating and freeing the vector.  Assert that
1887         get_defs succeeds instead of returning 2.  Changed return type to bool.
1888         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
1889         have ext_src_mode, see if it has been modified already with the
1890         right kind of extension and has been extended before from the
1891         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
1892         just return true.  Remember the original mode in state->modified array.
1893         (combine_reaching_defs): Add state argument.  Don't allocate and
1894         free here def_list, copied_list and vec vectors, instead just
1895         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
1896         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
1897         Add state variable, clear vectors in it, initialize state.modified
1898         if needed.  Free all the vectors at the end and state.modified too.
1899         Don't skip a candidate if the extension expression has been modified.
1900
1901 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
1902
1903         PR target/47096
1904         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
1905          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
1906         (extra_options) interix.opt -> i386/interix.opt"
1907         (extra_objs):Add winnt-stubs.o
1908         * configure.ac: Add interix to target_os .comm on PE check.
1909         * configure: Regenerate.
1910         * config/interix3.h: Delete and move bits to..
1911         * config/interix.h: Delete and move bits to..
1912         * config/i386/i386-interix3.h: Delete and move bits to..
1913         * config/i386/i386-interix.h: ..here.
1914         (TARGET_CPU_DEFAULT): Remove redefinition.
1915         (TARGET_ASM_CONSTRUCTOR): Undefine.
1916         (SUBTARGET_SWITCHES): Define for ms-bitfields.
1917         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
1918         (PTRDIFF_TYPE): Define.
1919         (LONG_DOUBLE_TYPE_SIZE): Define.
1920         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
1921         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
1922         (TARGET_SECTION_TYPE_FLAGS): Define.
1923         (ASM_DECLARE_FUNCTION_NAME): Define.
1924         (ASM_OUTPUT_EXTERNAL): Define.
1925         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
1926         (ASM_OUTPUT_ALIGNED_BSS): Define.
1927         (PCC_BITFIELD_TYPE_MATTERS): Define.
1928         (USE_CONST_SECTION): Define.
1929         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
1930         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
1931         (SUPPORTS_ONE_ONLY): Remove.
1932         (I386_PE_STRIP_ENCODING): Define.
1933         * config/interix.opt: Delete and move bits to..
1934         * config/i386/interix.opt: ..here. New.
1935         (mpe-aligned-commons): Add.
1936         * config/i386/t-interix: Add copyright header.
1937         (winnt-stubs.o): Add rule.
1938
1939 2012-01-22  Jason Merrill  <jason@redhat.com>
1940
1941         PR c++/51832
1942         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
1943         for extra name aliases.
1944
1945 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
1946
1947         PR rtl-optimization/51924
1948         * ree.c (combine_set_extension): Improve debugging message.
1949         (combine_reaching_defs): Likewise.
1950         (get_defs): Rename confusingly named variable.
1951         (find_and_remove_re): Skip a candidate if the extension expression has
1952         been modified.
1953
1954 2012-01-21  Robert Millan  <rmh@gnu.org>
1955             Gerald Pfeifer  <gerald@pfeifer.com>
1956
1957         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
1958         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
1959
1960 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
1961
1962         PR tree-optimization/51914
1963         * tree-vect-stmts.c (vectorizable_conversion): For
1964         cvt_type && modifier == WIDEN, put temporary with cvt_type
1965         at the beginning of vec_dsts and set vec_dest to temporary
1966         with vectype_out.
1967
1968 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
1969
1970         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
1971
1972 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
1973
1974         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
1975         * config/rs6000/rs6000.c: Likewise.
1976
1977 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
1978
1979         PR target/51915
1980         * config/arm/arm.c (arm_count_output_move_double_insns): Call
1981         output_move_double on a copy of operands array.
1982
1983 2012-01-20  Cary Coutant  <ccoutant@google.com>
1984             Dodji Seketeli  <dodji@redhat.com>
1985
1986         PR debug/45682
1987         * dwarf2out.c (copy_declaration_context): Return ref to parent
1988         of declaration DIE, if necessary.
1989         (remove_child_or_replace_with_skeleton): Add new parameter; update
1990         caller.  Place skeleton DIE under parent DIE of original declaration.
1991         Move call to copy_declaration_context to here ...
1992         (break_out_comdat_types): ... from here.
1993
1994 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1995
1996         PR rtl-optimization/51856
1997         * reload.c (find_reloads_subreg_address): Set the address_reloaded
1998         flag to reloaded.
1999
2000 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
2001
2002         PR target/51819
2003         * config/arm/arm.c (arm_print_operand): Correct output of alignment
2004         hints for neon loads and stores.
2005
2006 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
2007
2008         PR target/49868
2009         PR target/50887
2010         * doc/extend.texi (Named Address Spaces): Split into subsections.
2011         (AVR Named Address Spaces): New subsection.
2012         (M32C Named Address Spaces): New subsection.
2013         (RL78 Named Address Spaces): New subsection.
2014         (SPU Named Address Spaces): New subsection.
2015         (Variable Attributes): New anchor "AVR Variable Attributes".
2016         (AVR Variable Attributes): Rewrite and avoid wording
2017         "address space" in this context.
2018         * doc/invoke.texi (AVR Options): Rewrite and add documentation
2019         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
2020         (AVR Built-in Macros): New subsubsection therein.
2021         * doc/md.texi (AVR constraints): Remove "C04", "R".
2022
2023 2012-01-20  Richard Guenther  <rguenther@suse.de>
2024
2025         PR tree-optimization/51903
2026         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
2027         when removing stmts.
2028
2029 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
2030
2031         PR target/50313
2032         * config/arm/arm.c (arm_load_pic_register): Use
2033         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
2034         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
2035         (arm_pic_static_addr): Likewise.
2036         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
2037         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
2038         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
2039         (pic_load_addr_unified): New.
2040
2041 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
2042
2043         PR target/51106
2044         * function.c (instantiate_virtual_regs_in_insn): Use
2045         delete_insn_and_edges when removing a wrong asm insn.
2046
2047 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
2048
2049         PR rtl-optimization/40761
2050         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
2051         Add new member loop_num.
2052         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
2053         (ira_build): Remove the parameter.
2054
2055         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
2056         (ira.c): Do not build CFG loops for one region allocation.  Remove
2057         argument from ira_build call.
2058
2059         * ira-build.c (init_loop_tree_node): New function.
2060         (create_loop_tree_nodes): Use it.  Separate the case when CFG
2061         loops are not built.
2062         (more_one_region_p): Check current_loops.
2063         (finish_loop_tree_nodes): Separate the case when CFG loops are not
2064         built.
2065         (add_loop_to_tree): Process loop equal to NULL too.
2066         (form_loop_tree): Separate the case when CFG loops are not built.
2067         Use explicitly number for the root.
2068         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
2069         an assertion.
2070         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
2071         instead of loop->num.
2072         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
2073         (mark_all_loops_for_removal): Ditto.
2074         (remove_unnecessary_regions): Separate the case when CFG loops
2075         are not built.
2076         (ira_build): Remove the parameter.  Use explicit number of regions
2077         when CFG loops are not built.
2078
2079         * ira-color.c (print_loop_title): Separate the case for the root node.
2080         Use loop_num instead of loop->num.
2081         (move_spill_restore): Use loop_num instead of loop->num.
2082
2083         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
2084         (change_loop): Ditto.
2085         (change_loop): Use loop_num instead of loop->num.
2086
2087         * ira-lives.c (process_bb_node_lives): Ditto.
2088
2089         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
2090
2091         * ira-conflicts.c (print_allocno_conflicts): Ditto.
2092
2093 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
2094
2095         PR libmudflap/40778
2096         * tree-mudflap.c (mf_artificial): New function.
2097         (execute_mudflap_function_ops, execute_mudflap_function_decls,
2098         mx_register_decls, mudflap_enqueue_decl): Use it.
2099
2100         PR target/51876
2101         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
2102         numbers in the insn pattern.
2103
2104 2012-01-19  Michael Matz  <matz@suse.de>
2105
2106         PR tree-optimization/46590
2107         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
2108         use it in remembering which conflicts we already created.
2109         (add_scope_conflicts): Adjust call to above, (de)allocate helper
2110         bitmap.
2111
2112 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
2113
2114         PR lto/51280
2115         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
2116         (merge_and_complain): Same.
2117
2118 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
2119
2120         PR bootstrap/50237
2121         * config/initfini-array.h: Guard content of the header
2122         with #ifdef HAVE_INITFINI_ARRAY.
2123         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
2124         Add initfini-array.h to tm_file here.
2125         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
2126         * config.gcc: Don't add initfini-array.h to tm_file here.
2127         * configure: Regenerated.
2128
2129 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
2130
2131         PR rtl-optimization/51505
2132         * df-problems.c (df_kill_notes): New parameter live. Update comment.
2133         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
2134         (df_note_bb_compute): Update the call to df_kill_notes.
2135
2136 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
2137
2138         * trans-mem.c (requires_barrier): Remove call to is_global_var.
2139
2140 2012-01-18  Richard Guenther  <rguenther@suse.de>
2141
2142         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
2143         of conversions to void *.
2144
2145 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2146             Richard Sandiford  <rdsandiford@googlemail.com>
2147
2148         PR middle-end/50325
2149         PR middle-end/51192
2150         * optabs.h (simplify_expand_binop): Declare.
2151         * optabs.c (simplify_expand_binop): Make global.
2152         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
2153         endian targets if the source cannot be exactly covered by word
2154         mode chunks.
2155
2156 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
2157
2158         PR bootstrap/51872
2159         * hard-reg-set.h (struct hard_reg_set_container): New type.
2160         * target.h (struct hard_reg_set_container): Forward declare.
2161         * target.def (set_up_by_prologue): New target hook.
2162         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
2163         * doc/tm.texi: Regenerated.
2164         * function.c (thread_prologue_and_epilogue_insns): Change
2165         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
2166         Call targetm.set_up_by_prologue on it.
2167         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
2168         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
2169
2170 2012-01-17  Nick Clifton  <nickc@redhat.com>
2171
2172         * config/rx/rx.c (rx_can_use_simple_return): New function.
2173         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
2174         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
2175
2176 2012-01-17  Richard Guenther  <rguenther@suse.de>
2177
2178         PR middle-end/51782
2179         * expr.c (expand_assignment): Take address-space information
2180         from the address operand of MEM_REF and TARGET_MEM_REF.
2181         (expand_expr_real_1): Likewise.
2182
2183 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2184
2185         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
2186         reload dump is requested.
2187
2188 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
2189
2190         PR other/51165
2191         * trans-mem.c (requires_barrier): Call may_be_aliased.
2192
2193 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
2194
2195         PR tree-optimization/51877
2196         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
2197         call arguments and fndecls compare equal, instead return false if they
2198         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
2199         both SSA_NAMEs that are valueized the same, or they satisfy
2200         operand_equal_p.
2201
2202 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2203
2204         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
2205         Solaris 11+.
2206         * configure: Regenerate.
2207
2208 2012-01-16  Jan Hubicka  <jh@suse.cz>
2209
2210         PR c/12245
2211         PR c++/14179
2212         * convert.c (convert_to_integer): Use fold_convert for
2213         converting an INTEGER_CST to integer type.
2214
2215 2012-01-16  Jason Merrill  <jason@redhat.com>
2216
2217         PR c++/14179
2218         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
2219
2220 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
2221
2222         PR bootstrap/51860
2223         * config/s390/s390.c (s390_chunkify_start): Don't skip
2224         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
2225         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
2226         If insn is followed by NOTE_INSN_VAR_LOCATION or
2227         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
2228         Don't use location of note insns.
2229
2230         PR tree-optimization/51865
2231         * tree-inline.c (tree_function_versioning): Call remap_decl
2232         on DECL_RESULT whenever it has VOID_TYPE_P type.
2233
2234 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
2235
2236         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
2237         for calls to locally-binding MIPS16 functions if only the return
2238         type uses float regs.
2239
2240 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
2241             Richard Sandiford  <rdsandiford@googlemail.com>
2242
2243         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
2244         (SYMBOL_32_HIGH): Likewise.
2245         (mips_output_tls_reloc_directive): Declare.
2246         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
2247         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
2248         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
2249         (mips_lo_relocs, mips_hi_relocs): Make extern.
2250         (mips16_stub_function): Move up file.
2251         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
2252         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
2253         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
2254         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
2255         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
2256         (mips_get_tp): Add MIPS16 support.
2257         (mips_legitimize_tls_address): Remove MIPS16 sorry().
2258         Generalize DTPREL and TPREL handling.
2259         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
2260         Add MIPS16 TLS support.
2261         (mips_output_tls_reloc_directive): New function.
2262         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
2263         * config/mips/predicates.md (symbolic_operand_with_high)
2264         (tls_reloc_operand): New predicates.
2265         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
2266         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
2267         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
2268         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
2269         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
2270         (*tls_get_tp_mips16_call_<mode>): Likewise.
2271
2272 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
2273
2274         PR rtl-optimization/51821
2275         * recog.c (peep2_find_free_register): Determine clobbered registers
2276         from insn pattern.
2277
2278 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
2279
2280         PR target/50925
2281         * config/avr/avr-protos.h: Revert change of 2012-01-09.
2282         * config/avr/avr.c: Likewise.
2283         * config/avr/avr.h: Likewise.
2284
2285 2012-01-13  Ian Lance Taylor  <iant@google.com>
2286
2287         PR c++/50012
2288         * tree.h (TYPE_QUALS): Add cast to int.
2289         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
2290
2291 2012-01-13  Ian Lance Taylor  <iant@google.com>
2292
2293         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
2294         comparing param_index to VEC_length result.
2295
2296 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
2297
2298         * c-decl.c: Do not include tree-mudflap.h
2299         * tree-optimize.c: Likewise.
2300         * Makefile.in: Update dependencies.
2301
2302 2012-01-13  Richard Guenther  <rguenther@suse.de>
2303
2304         PR middle-end/8081
2305         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
2306         variable-sized result always use RSO.
2307
2308 2012-01-12  DJ Delorie  <dj@redhat.com>
2309
2310         * cfgexpand.c (convert_debug_memory_address): Allow any valid
2311         pointer type, not just the default pointer type.
2312
2313 2012-01-09  Richard Henderson  <rth@redhat.com>
2314             Denis Chertykov  <chertykov@gmail.com>
2315
2316         PR target/50925
2317         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
2318         * config/avr/avr.c (avr_can_eliminate): Simplify.
2319         (avr_initial_elimination_offset): Likewise.
2320         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
2321         (expand_epilogue): Likewise.
2322         (avr_legitimize_address): Gut.
2323         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
2324         (avr_hard_regno_nregs): New.
2325         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
2326         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
2327         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
2328         add soft frame pointer.
2329         (CALL_USED_REGISTERS): Likewise.
2330         (REG_CLASS_CONTENTS): Likewise.
2331         (REGISTER_NAMES): Likewise.
2332         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
2333         (HARD_FRAME_POINTER_REGNUM): New.
2334         (FRAME_POINTER_REGNUM): Use soft frame pointer.
2335         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
2336         remove the HARD_FRAME_POINTER self-elimination.
2337
2338 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
2339
2340         PR target/51756
2341         * config/avr/avr.c (avr_encode_section_info): Test for absence of
2342         DECL_EXTERNAL when checking for initializers of progmem variables.
2343
2344 2012-01-12  Ira Rosen  <irar@il.ibm.com>
2345
2346         PR tree-optimization/51799
2347         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
2348         that the last operation is a type demotion.
2349
2350 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
2351
2352         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
2353         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
2354
2355 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
2356
2357         PR bootstrap/51796
2358         * combine.c (distribute_notes): If i3 is a noreturn call,
2359         allow old_size to be equal to args_size and make sure the
2360         noreturn call gets REG_ARGS_SIZE note.
2361         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
2362         on noreturn calls even when the delta is 0.
2363
2364 2012-01-11  Nathan Sidwell  <nathan@acm.org>
2365
2366         * gcov.c (STRING_SIZE): Remove.
2367         (generate_results): Erase annotations for source files with no
2368         coverage information.
2369         (read_line): New.
2370         (output_lines): Use it.
2371
2372 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
2373
2374         * gimple.h (gimplify_body): Remove first argument.
2375         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
2376         pointer set here, instead just pass DATA to walk_tree.
2377         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
2378         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
2379         (unvisit_body): Likewise, but with unmark_visited.
2380         (gimplify_body): Remove BODY_P argument and adjust.
2381         (gimplify_function_tree): Adjust call to gimplify_body.
2382         * omp-low.c (finalize_task_copyfn): Likewise.
2383
2384 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
2385
2386         * tree.h (build_function_decl_skip_args): Add boolean parameter.
2387         (build_function_type_skip_args): Delete.
2388         * tree.c (build_function_type_skip_args): Make static and add
2389         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
2390         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
2391         pass it to build_function_type_skip_args.
2392         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
2393         (tree_function_versioning): Likewise.
2394         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
2395         build_function_decl_skip_args.
2396         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
2397         and pass it to build_function_decl_skip_args/tree_function_versioning.
2398         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
2399         * ipa-inline-transform.c (save_inline_function_body): Likewise.
2400         * trans-mem.c (ipa_tm_create_version): Likewise.
2401         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
2402         * tree-inline.c (declare_return_variable): Remove always-true test.
2403         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
2404         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
2405         * ipa-split.c (split_function): Skip the return value for the split
2406         part if it doesn't return.
2407
2408 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
2409
2410         PR tree-optimization/49642
2411         * ipa-split.c (forbidden_dominators): New variable.
2412         (check_forbidden_calls): New function.
2413         (dominated_by_forbidden): Likewise.
2414         (consider_split): Check for forbidden dominators.
2415         (execute_split_functions): Initialize and free forbidden
2416         dominators info; call check_forbidden_calls.
2417
2418 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
2419
2420         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
2421
2422 2012-01-11  Nick Clifton  <nickc@redhat.com>
2423
2424         * config/rx/rx.md (return): Define pattern.
2425
2426 2012-01-11  Richard Guenther  <rguenther@suse.de>
2427
2428         * doc/extend.texi (malloc attribute): Adjust according to
2429         implementation.
2430
2431 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
2432             Patrick Marlier  <patrick.marlier@gmail.com>
2433
2434         PR middle-end/51516
2435         * trans-mem.c (get_cg_data): Traverse aliases if requested.
2436         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
2437         (ipa_tm_note_irrevocable): Same.
2438         (ipa_tm_scan_irr_block): Same.
2439         (ipa_tm_decrement_clone_counts): Same.
2440         (ipa_tm_scan_irr_function): Same.
2441         (ipa_tm_create_version_alias): Same.
2442         (ipa_tm_create_version): Same.
2443         (ipa_tm_transform_calls_redirect): Same.
2444         (ipa_tm_transform_calls): Same.
2445         (ipa_tm_transform_transaction): Same.
2446         (ipa_tm_execute): Same.
2447
2448 2012-01-10  Richard Guenther  <rguenther@suse.de>
2449
2450         PR middle-end/51806
2451         * opts.c (common_handle_option): Handle -Werror.
2452
2453 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
2454
2455         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
2456         operand number.
2457
2458 2012-01-10  Jason Merrill  <jason@redhat.com>
2459
2460         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
2461         information.
2462
2463 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2464
2465         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
2466         supports R_386_TLS_GD_PLT reloc.
2467         (gcc_cv_as_ix86_tlsldmplt): Check if linker
2468         supports R_386_TLS_LDM_PLT reloc.
2469         * configure: Regenerate.
2470         * config.in: Regenerate.
2471
2472 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
2473
2474         PR target/49868
2475         Extend __pgmx semantics to linearize memory.
2476         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
2477         determine if code comes inline or from libgcc.
2478         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
2479         (movmem_qi, movmem_qi): Set constraint #2 to "n".
2480         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
2481         (movmemx_qi, movmemx_hi): New insns.
2482         (xload_<mode>_libgcc): Rewrite to new insn condition.
2483         (xload_<mode>): Remove insns.
2484         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
2485         cases that don't satisfy avr_xload_libgcc_p().
2486         (avr_addr_space_convert): Allow converting in any direction.
2487         (avr_addr_space_subset_p): Return always true.
2488         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
2489         (avr_emit_movmemhi): Ditto.
2490         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
2491         (avr_out_movmem): Ditto.
2492         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
2493         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
2494         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
2495         (avr_encode_section_info): Encode 'progmem' in symbol flags.
2496         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
2497
2498 2012-01-10  Richard Guenther  <rguenther@suse.de>
2499
2500         PR tree-optimization/50913
2501         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
2502         Require data-refs to be representable by Graphite with respect
2503         to any loop nest.
2504
2505 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
2506
2507         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
2508         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
2509
2510 2012-01-10  Tom de Vries  <tom@codesourcery.com>
2511
2512         PR rtl-optimization/51271
2513         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
2514         handling annulled branch.
2515
2516 2012-01-10  Richard Henderson  <rth@redhat.com>
2517
2518         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
2519         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
2520         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
2521         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
2522         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
2523         arm_expand_vec_perm_const): New.
2524         * config/arm/arm-protos.h: Update.
2525         * config/arm/neon.md (UNSPEC_VCONCAT): New.
2526         (*neon_vswp<VDQX>): New.
2527         (neon_vcombine<VDX>): Use neon_split_vcombine.
2528         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
2529         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
2530         (vec_perm<VE>): New.
2531
2532 2012-01-10  Richard Henderson  <rth@redhat.com>
2533
2534         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
2535         use it if reload_completed.
2536         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
2537         arm_output_asm_insn, arm_process_output_memory_barrier,
2538         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
2539         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
2540         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
2541         arm_process_output_sync_insn, arm_output_sync_insn,
2542         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
2543         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
2544         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
2545         (emit_unlikely_jump): New.
2546         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
2547         (arm_split_atomic_op): New.
2548         * config/arm/arm-protos.h: Update.
2549         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
2550         (struct arm_sync_generator): Remove.
2551         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
2552         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
2553         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
2554         (VUNSPEC_LL, VUNSPEC_SC): New.
2555         (sync_result, sync_memory, sync_required_value, sync_new_value,
2556         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
2557         (attr length): Don't use arm_sync_loop_insns.
2558         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
2559         (movsfcc, movdfcc): Likewise.
2560         * config/arm/constraints.md (Ua): New.
2561         * config/arm/prediates.md (mem_noofs_operand): New.
2562         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
2563         (sync_clobber, sync_t2_reqd): Remove.
2564         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
2565         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
2566         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
2567         (arm_sync_compare_and_swap<SIDI>): Remove.
2568         (arm_sync_compare_and_swap<NARROW>): Remove.
2569         (arm_sync_lock_test_and_set<SIDI>): Remove.
2570         (arm_sync_lock_test_and_set<NARROW>): Remove.
2571         (arm_sync_new_<syncop><SIDI>): Remove.
2572         (arm_sync_new_<syncop><NARROW>): Remove.
2573         (arm_sync_new_nand<SIDI>): Remove.
2574         (arm_sync_new_nand<NARROW>): Remove.
2575         (arm_sync_old_<syncop><SIDI>): Remove.
2576         (arm_sync_old_<syncop><NARROW>): Remove.
2577         (arm_sync_old_nand<SIDI>): Remove.
2578         (arm_sync_old_nand<NARROW>): Remove.
2579         (*memory_barrier): Merge arm_output_memory_barrier.
2580         (atomic_compare_and_swap<QHSD>): New.
2581         (atomic_compare_and_swap<NARROW>_1): New.
2582         (atomic_compare_and_swap<SIDI>_1): New.
2583         (atomic_exchange<QHSD>): New.
2584         (cas_cmp_operand, cas_cmp_str): New.
2585         (atomic_op_operand, atomic_op_str): New.
2586         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
2587         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
2588         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
2589         (arm_load_exclusive<NARROW>): New.
2590         (arm_load_exclusivesi, arm_load_exclusivedi): New.
2591         (arm_store_exclusive<QHSD>): New.
2592
2593 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
2594
2595         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
2596         reload patterns if -mvsx-scalar-memory.
2597
2598         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
2599         generated, even -mno-vsx-scalar-double was used.
2600         (vsx_xscvdpsp_scalar): Likewise.
2601         (vsx_xscvspdp_scalar2): Likewise.
2602
2603 2012-01-09  Tom de Vries  <tom@codesourcery.com>
2604             Andrew Pinski  <apinski@cavium.com>
2605
2606         PR debug/51471
2607         * reorg.c (fill_slots_from_thread): Don't speculate
2608         frame-related insns.
2609
2610 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
2611
2612         * sched-int.h (bb_note): Move to...
2613         * basic-block.h: ...here.
2614         * haifa-sched.c (bb_note): Move to...
2615         * cfgrtl.c: ...here.
2616         * function.c (next_block_for_reg): New function.
2617         (move_insn_for_shrink_wrap): Likewise.
2618         (prepare_shrink_wrap): Rewrite to use the above.
2619
2620 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
2621
2622         * gimple.c (is_gimple_non_addressable): Remove.
2623         * gimple.h: Remove is_gimple_non_addressable.
2624         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
2625         is_gimple_non_addressable.
2626         * trans-mem.c (expand_assign_tm): Same.
2627
2628 2012-01-09  Richard Guenther  <rguenther@suse.de>
2629
2630         PR tree-optimization/51775
2631         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
2632         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
2633
2634 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
2635
2636         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
2637         tuning parameters.
2638         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
2639
2640 2012-01-09  Richard Guenther  <rguenther@suse.de>
2641
2642         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
2643
2644 2012-01-08  Jan Hubicka  <jh@suse.cz>
2645
2646         PR tree-optimize/51680
2647         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
2648         on when known_vals needs to be computed; cleanup.
2649
2650 2012-01-08  Jan Hubicka  <jh@suse.cz>
2651
2652         PR tree-optimize/51694
2653         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
2654
2655 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
2656
2657         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
2658         for -std=c++98 and -std=c++11 too.
2659
2660 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
2661
2662         * cfgloop.c (cancel_loop): Add free() of bbs array.
2663
2664 2012-01-07  Jan Hubicka  <jh@suse.cz>
2665
2666         PR tree-optimization/51600
2667         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
2668         that benefits small functions.
2669
2670 2012-01-07  Jan Hubicka  <jh@suse.cz>
2671
2672         * ipa-inline.c (want_inline_small_function_p): Fix formating.
2673
2674 2012-01-07  Jan Hubicka  <jh@suse.cz>
2675
2676         PR tree-optimization/51680
2677         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
2678         whose inlining reduce unit size.
2679
2680 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
2681
2682         PR bootstrap/51725
2683         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
2684         Add canonical node to containing_mem chain after the non-canonical
2685         one, even if there weren't any locs to propagate.
2686         (remove_useless_values): Keep only canonical values.
2687         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
2688         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
2689         canonicalize mem_chain elements that are not discarded.
2690
2691 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
2692
2693         PR target/47333
2694         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
2695         before emitting functions.
2696
2697         PR gcov-profile/50127
2698         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
2699         clear_aux_for_blocks.
2700
2701 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
2702
2703         PR debug/51746
2704         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
2705
2706 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
2707
2708         * c-decl.c (ext_block): Moved up.
2709         (collect_all_refs, for_each_global_decl): Take ext_block into account.
2710
2711 2012-01-06  Han Shen  <shenhan@google.com>
2712
2713         Translate built-in include paths for sysroot.
2714         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
2715         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
2716
2717         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
2718         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
2719
2720         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
2721         control whether sysroot should be prepended to gxx include dir.
2722
2723         * configure: Regenerate.
2724
2725 2012-01-06  Torvald Riegel  <triegel@redhat.com>
2726
2727         PR rtl-optimization/51771
2728         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
2729         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
2730
2731 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
2732
2733         PR tree-optimization/51315
2734         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
2735         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
2736
2737 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
2738
2739         PR target/51681
2740         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
2741         for shrp pattern.  Correctly handle and fixup shift variable.
2742         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
2743
2744 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2745
2746         PR debug/51762
2747         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
2748         note when !ACCUMULATE_OUTGOING_ARGS.
2749
2750 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
2751
2752         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
2753         condition.
2754         (extract_range_from_unary_expr_1): Avoid useless computations.
2755
2756 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2757
2758         PR rtl-optimization/51767
2759         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
2760         of jump_block and add an extra edge for degenerated asm gotos.
2761
2762         PR middle-end/51768
2763         * stmt.c (check_unique_operand_names): Don't ICE during error
2764         reporting if i is from labels chain.
2765
2766         PR middle-end/44777
2767         * profile.c (branch_prob): Split bbs that have exit edge
2768         and need a fake entry edge too.
2769
2770 2012-01-05  Jan Hubicka  <jh@suse.cz>
2771
2772         PR middle-end/49710
2773         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
2774         unlooping loops.
2775
2776 2012-01-05  Richard Guenther  <rguenther@suse.de>
2777
2778         PR lto/50490
2779         * tree-streamer-out.c (write_ts_optimization): New function.
2780         (streamer_write_tree_body): Call it.
2781         * tree-streamer-in.c (lto_input_ts_optimization): New function.
2782         (streamer_read_tree_body): Call it.
2783         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
2784
2785 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2786
2787         PR middle-end/51761
2788         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
2789         * gimplify.c (gimplify_cleanup_point_expr): Save and set
2790         in_cleanup_point_expr before gimplify_stmt call and restore it
2791         afterwards.
2792         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
2793         in_cleanup_point_expr is false.
2794
2795 2012-01-05  Richard Guenther  <rguenther@suse.de>
2796
2797         PR middle-end/51764
2798         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
2799         to c.opt.
2800         * toplev.c (process_options): Reject combining mudflap and LTO.
2801         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
2802
2803 2012-01-05  Richard Guenther  <rguenther@suse.de>
2804
2805         PR tree-optimization/51760
2806         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
2807         not VARYING.
2808         (bit_value_unop): Handle UNDEFINED operands.
2809         (bit_value_binop): Likewise.
2810
2811 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
2812
2813         * config/avr/avr.c (avr_replace_prefix): Remove.
2814         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
2815         (avr_asm_function_rodata_section): Ditto.
2816         (avr_asm_select_section): Ditto.
2817
2818 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
2819
2820         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
2821         insertion.
2822
2823 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
2824
2825         PR bootstrap/51648
2826         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
2827         calls that have any non-fake successor edges.
2828
2829         PR debug/51746
2830         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
2831
2832 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
2833
2834         PR tree-optimization/51624
2835         * tree-sra.c (build_ref_for_model): When replicating a chain of
2836         COMPONENT_REFs, stop as soon as the offset would become negative.
2837
2838 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
2839
2840         PR debug/51695
2841         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
2842         in .debug_loc on the floor.
2843
2844 2012-01-04  Andrew Pinski  <apinski@cavium.com>
2845
2846         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
2847
2848 2012-01-04  Andrew Pinski  <apinski@cavium.com>
2849             Adam Nemet  <anemet@caviumnetworks.com>
2850
2851         * config/mips/mips.md (size): Add SI and DI.
2852         (SIZE): New mode attribute.
2853         (U): New code attribute.
2854         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
2855         (mips_lbux_<mode>): Delete.
2856         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
2857         (mips_lhx): Use gen_mips_lhx_extsi.
2858         (mips_lhx_<mode>): Delete.
2859         (mips_lwx): Delete.
2860         (mips_l<size>x): New expand.
2861         (mips_lwx_<mode>): Delete.
2862         (mips_l<GPR:size>x_<P:mode>): New pattern.
2863         (*mips_lw<u>x_<P:mode>_ext): Likewise.
2864         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
2865         * config/mips/mips.c (mips_lx_address_p): New function.
2866         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
2867         (dsp64): New availability predicate.
2868         (mips_builtins): Add an entry for __builtin_mips_ldx.
2869         * config/mips/mips.h (ISA_HAS_LBX): New define.
2870         (ISA_HAS_LBUX): Likewise.
2871         (ISA_HAS_LHX): Likewise.
2872         (ISA_HAS_LHUX): Likewise.
2873         (ISA_HAS_LWX): Likewise.
2874         (ISA_HAS_LWUX): Likewise.
2875         (ISA_HAS_LDX): Likewise.
2876         * doc/extend.texi (__builtin_mips_ldx): Document.
2877
2878 2012-01-04  Tristan Gingold  <gingold@adacore.com>
2879
2880         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
2881         when long pointers are used.
2882         * config.build (*-*-*vms*): Handle all OpenVMS targets.
2883         (alpha64-dec-*vms*, alpha*-dec-*vms*)
2884         (ia64-hp-*vms*): Remove.
2885         * config/vms/xm-vms64.h: Delete.
2886
2887 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
2888
2889         PR middle-end/51472
2890         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
2891
2892 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
2893
2894         * opts.c (finish_options): Remove duplicate sorry.
2895
2896 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
2897
2898         PR middle-end/51696
2899         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
2900         correctly.
2901
2902 2012-01-04  Richard Guenther  <rguenther@suse.de>
2903
2904         PR middle-end/51750
2905         * tree.c (size_low_cst): New function.
2906         * tree.h (size_low_cst): Declare.
2907         * fold-const.c (fold_comparison): Use it to extract the low
2908         part of the POINTER_PLUS_EXPR offset.
2909
2910 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
2911
2912         Fix clearing ZERO_REG
2913         * config/avr/avr.md (cc): Add alternative "ldi".
2914         (movqi_insn): Use it in cc attribute.
2915         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
2916         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
2917         (output_reload_insisf): Use ZERO_REG to pre-clear register.
2918
2919 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2920
2921         * configure: Regenerate.
2922
2923 2012-01-04  Richard Guenther  <rguenther@suse.de>
2924
2925         PR tree-optimization/49651
2926         * tree-ssa-structalias.c (type_can_have_subvars): New function.
2927         (var_can_have_subvars): Use it.
2928         (get_constraint_for_1): Only consider subfields if there can be any.
2929
2930 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
2931
2932         PR bootstrap/51725
2933         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
2934         to its new canonical_cselib_val and the cselib_val was in
2935         first_containing_mem chain, but the canonical_cselib_val was not,
2936         add the latter into the chain.
2937         (cselib_invalidate_mem): Compare canonical_cselib_val of
2938         addr_list chain elt with v.
2939
2940         PR pch/51722
2941         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
2942         dwarf2out_undef): Allocate e.info using ggc_strdup instead
2943         of xstrdup.
2944         (output_macinfo_op): Don't ggc_strdup fd->filename.
2945         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
2946         then ggc_strdup it.  Don't free inc->info or cur->info.
2947         (output_macinfo): Don't free ref->info or file->info.
2948
2949 2012-01-03  Ira Rosen  <irar@il.ibm.com>
2950
2951         PR tree-optimization/51269
2952         * tree-vect-loop-manip.c (set_prologue_iterations): Make
2953         first_niters a pointer.
2954         (slpeel_tree_peel_loop_to_edge): Likewise.
2955         (vect_do_peeling_for_loop_bound): Update call to
2956         slpeel_tree_peel_loop_to_edge.
2957         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
2958         here.  Remove it from the parameters list.
2959         (vect_do_peeling_for_alignment): Update calls and compute
2960         wide_prolog_niters.
2961
2962 2012-01-03  Richard Guenther  <rguenther@suse.de>
2963
2964         PR tree-optimization/51070
2965         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
2966         Properly handle calls.
2967
2968 2012-01-03  Richard Guenther  <rguenther@suse.de>
2969
2970         PR tree-optimization/51692
2971         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
2972         the LHS of allocation stmts.
2973
2974 2012-01-03  Olivier Hainque  <hainque@adacore.com>
2975
2976         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
2977
2978 2012-01-03  Olivier Hainque  <hainque@adacore.com>
2979
2980         * collect2.c (main): In AIX specific computations for vector
2981         insertions, use CONST_CAST2 to cast from char ** to const char **.
2982
2983 2012-01-03  Richard Guenther  <rguenther@suse.de>
2984
2985         PR debug/51650
2986         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
2987         the context of a limbo DIE when it does not already exist.
2988
2989 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
2990
2991         PR tree-optimization/51719
2992         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
2993         but direct call is, clear direct call's lhs and don't add fallthrough
2994         edge from dcall_bb to join_bb and PHIs.
2995
2996 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2997
2998         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
2999         the instructions emitted by the pattern.
3000         ("*TDC_insn_<mode>"): Add comment.
3001
3002 2012-01-03  Richard Guenther  <rguenther@suse.de>
3003
3004         PR middle-end/51730
3005         * fold-const.c (fold_comparison): Properly canonicalize
3006         tree offset and HOST_WIDE_INT bit position.
3007
3008 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
3009
3010         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
3011         operands for extzv pattern.
3012
3013 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
3014
3015         PR bootstrap/51725
3016         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
3017         on mem_elt first.
3018
3019 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
3020
3021         * doc/invoke.texi (-flto and related options): Copy-edit.
3022
3023 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
3024
3025         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
3026
3027 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
3028
3029         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
3030         New patterns.
3031
3032 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
3033
3034         * expr.h (move_by_pieces_ninsns): Declare.
3035         * expr.c (move_by_pieces_ninsns): Make external.
3036         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
3037         (mips_store_by_pieces_p): Likewise.
3038         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
3039         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
3040         * config/mips/mips.c (mips_move_by_pieces_p): New function.
3041         (mips_store_by_pieces_p): Likewise.
3042
3043 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
3044
3045         * passes.c (register_one_dump_file): Free full_name.
3046
3047         * reload1.c (reload): Don't allocate reg_max_ref_width here.
3048         (calculate_elim_costs_all_insns): Free offsets_at and
3049         offsets_known_at at the end and clear the pointers.
3050
3051 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
3052
3053         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
3054         this option introduced in r180739.
3055
3056 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
3057
3058         PR target/51345
3059         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
3060         (tmake_file target=avr): Add avr/t-multilib.
3061
3062         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
3063         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
3064         * config/avr/genmultilib.awk: New file.
3065         * config/avr/t-multilib: New auto-generated file.
3066         * config/avr/multilib.h: New auto-generated file.
3067         * config/avr/t-avr (AVR_MCUS): New variable.
3068         (genopt.sh): Use it.
3069         (s-mlib): Depend on t-multilib.
3070         (t-multilib, multilib.h): New dependencies.
3071         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
3072         (MULTILIB_OPTIONS): Remove.
3073         (MULTILIB_MATCHES): Remove.
3074         (MULTILIB_DIRNAMES): Remove.
3075         (MULTILIB_EXCEPTIONS): Remove:
3076         * config/avr/genopt.sh: Don't use hard coded file name;
3077         pass AVR_MCUS from t-avr instead.
3078
3079 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
3080
3081         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
3082
3083 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
3084
3085         Implement light-weight DImode support.
3086         * config/avr/avr-dimode.md: New file.
3087         * config/avr/avr.md: Include it.
3088         (adjust_len): Add plus64, compare64.
3089         (HIDI): Remove code iterator.
3090         (code_stdname): New code attribute.
3091         (rotx, rotsmode): Remove DI.
3092         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
3093         as code iterator.
3094         * config/avr/avr-protos.h (avr_have_dimode): New.
3095         (avr_out_plus64, avr_out_compare64): New.
3096         * config/avr/avr.c (avr_out_compare): Handle DImode.
3097         (avr_have_dimode): New variable definition and initialization.
3098         (avr_out_compare64, avr_out_plus64): New functions.
3099         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
3100         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
3101         (avr_compare_pattern): Skip DImode comparisons.
3102
3103 2012-01-02  Revital Eres  <revital.eres@linaro.org>
3104
3105         * ddg.c (def_has_ccmode_p): New function.
3106         (add_cross_iteration_register_deps,
3107         create_ddg_dep_from_intra_loop_link): Call it.
3108
3109 2012-01-02  Richard Guenther  <rguenther@suse.de>
3110
3111         PR other/51679
3112         * invoke.texi (fassociative-math): Remove spurious paranthesis.
3113
3114 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
3115
3116         * gcc.c (process_command): Update copyright notice dates.
3117         * gcov.c (print_version): Likewise.
3118         * gcov-dump.c (print_version): Likewise.
3119         * mips-tfile.c (main): Likewise.
3120         * mips-tdump.c (main): Likewise.
3121
3122 2012-01-01  Ira Rosen  <irar@il.ibm.com>
3123
3124         PR tree-optimization/51704
3125         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
3126         a use is inside the basic block or loop before accessing its vect info.
3127
3128 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
3129
3130         PR rtl-optimization/51069
3131         * cfgloopmanip.c (remove_path): Removing path making irreducible
3132         region unconditional makes BB part of the region.
3133
3134 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
3135
3136         PR tree-optimization/51683
3137         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
3138         calls with side-effects.
3139         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
3140 \f
3141 Copyright (C) 2012 Free Software Foundation, Inc.
3142
3143 Copying and distribution of this file, with or without modification,
3144 are permitted in any medium without royalty provided the copyright
3145 notice and this notice are preserved.