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2011-12-02 Richard Guenther <rguenther@suse.de>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2011-12-02  Richard Guenther  <rguenther@suse.de>
2
3         PR lto/47259
4         * ipa.c (varpool_externally_visible_p): Register variables
5         are always externally visible.
6
7 2011-12-02  Sameera Deshpande  <sameera.deshpande@arm.com>
8
9         * gimple-pretty-print.c (dump_gimple_call): Dereference fn only if
10           non-NULL.
11
12 2011-12-02  Martin Jambor  <mjambor@suse.cz>
13
14         PR tree-optimization/50622
15         * tree-sra.c (load_assign_lhs_subreplacements): Force gimple operand
16         if both lacc and racc are grp_partial_lhs.
17
18 2011-12-01  Kaz Kojima  <kkojima@gcc.gnu.org>
19
20         PR target/50814.
21         * config/sh/sh.c (expand_ashiftrt): Handle TARGET_SH2A same as
22         TARGET_SH3.
23         (shl_sext_kind): Likewise.
24         * config/sh/sh.h (SH_DYNAMIC_SHIFT_COST): Likewise.
25         * config/sh/sh.md (ashlsi3_sh2a, ashrsi3_sh2a, lshrsi3_sh2a):
26         Remove.
27         (ashlsi3_std): Handle TARGET_SH2A same as TARGET_SH3.
28         (ashlsi3): Likewise.
29         (ashrsi3_d): Likewise.
30         (lshrsi3_d): Likewise.
31         (lshrsi3): Likewise.
32
33 2011-12-01   Diego Novillo  <dnovillo@google.com>
34
35         PR bootstrap/51346
36         * ipa-inline.c (can_inline_edge_p): If the edge E has a
37         statement, use the statement's inline indicator instead
38         of E's.
39         Remove consistency check.
40
41 2011-12-01   Diego Novillo  <dnovillo@google.com>
42
43         PR bootstrap/51346
44         Revert
45
46         2011-11-29   Diego Novillo  <dnovillo@google.com>
47
48                 * gimple.c (gimple_call_set_cannot_inline): Move from gimple.h.
49                 Update field call_stmt_cannot_inline_p from call
50                 graph edge, if needed.
51                 * gimple.h (gimple_call_set_cannot_inline): Move to gimple.c.
52
53 2011-12-01  Nathan Sidwell  <nathan@acm.org>
54
55         PR gcov-profile/51113
56         * coverage.c (build_var): Keep coverage variables static.
57
58 2011-12-01  Jakub Jelinek  <jakub@redhat.com>
59
60         PR tree-optimization/51356
61         * tree-vect-patterns.c (vect_recog_bool_pattern): Give up if
62         vectype doesn't have VECTOR_MODE_P.
63
64         PR debug/50317
65         * tree-ssa-dce.c (remove_dead_stmt): Add a debug stmt when removing
66         as unnecessary a store to a variable with gimple reg type.
67         * tree-ssa-live.c (remove_unused_locals): Clear TREE_ADDRESSABLE bit
68         on local unreferenced variables.
69         * cfgexpand.c (expand_gimple_basic_block): Don't emit DEBUG_INSNs
70         for !target_for_debug_bind variables.
71
72 2011-12-01  Patrick Marlier  <patrick.marlier@gmail.com>
73
74         PR middle-end/51273
75         * cgraph.h (cgraph_call_node_duplication_hooks): Declare.
76         * cgraph.c (cgraph_call_node_duplication_hooks): Make global. 
77         * cgraphunit.c (cgraph_copy_node_for_versioning): Call it.
78
79 2011-12-01  Andrew Pinski  <apinski@cavium.com>
80
81         PR lto/51198
82         * tree.c (free_lang_data_in_decl): Clear FIELD_DECL's
83         DECL_INITIAL also.
84
85 2011-12-01  Jakub Jelinek  <jakub@redhat.com>
86
87         PR tree-optimization/51246
88         * tree-predcom.c (replace_ref_with): Handle also clobber on the
89         rhs.
90
91         PR rtl-optimization/51014
92         * loop-unroll.c (apply_opt_in_copies): Ignore label DEBUG_INSNs
93         both from bb and orig_bb.
94
95 2011-12-01  Joern Rennecke  <joern.rennecke@embecosm.com>
96
97         PR tree-optimization/50802
98         * tree-vrp.c (simplify_conversion_using_ranges): Rewrite test
99         considering what happens to ranges during sign changes and/or
100         intermediate narrowing conversions.
101
102 2011-11-30  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
103
104         PR middle-end/50283
105         * config/pa/pa.md (in_branch_delay): Disallow frame related insns.
106         (in_nullified_branch_delay): Likewise.
107         (in_call_delay): Likewise.
108
109 2011-11-30  Richard Henderson  <rth@redhat.com>
110
111         * predict.c (expr_expected_value_1): Assume compare-and-swap builtin
112         boolean return is true.
113
114 2011-11-30  Jakub Jelinek  <jakub@redhat.com>
115
116         PR rtl-optimization/51044
117         * dse.c (emit_inc_dec_insn_before): Ensure new_insn is an instruction
118         rather than just insn body.
119
120         PR target/50725
121         * function.c (thread_prologue_and_epilogue_insns): If
122         stack_realign_drap, add drap_reg to SET_UP_BY_PROLOGUE
123         regset.
124
125         PR middle-end/51089
126         * tree-eh.c (cleanup_empty_eh_merge_phis): Add check to
127         avoid creating duplicate edges here.
128         (cleanup_empty_eh_unsplit): And remove it in the caller.
129
130 2011-11-30  Andrew Pinski  <apinski@cavium.com>
131
132         PR c/51321
133         * c-parser.c (c_parser_postfix_expression): Check groktypename results
134         before looking at the main variant.
135
136 2011-11-30  Jakub Jelinek  <jakub@redhat.com>
137
138         PR rtl-optimization/48721
139         * sched-deps.c (sched_analyze_insn): For SIBLING_CALL_P set
140         reg_pending_barrier to TRUE_BARRIER.
141
142         PR rtl-optimization/48721
143         * sched-ebb.c (begin_move_insn): Insert empty unreachable
144         block after BARRIER if insn is followed by it.
145
146 2011-11-30  Richard Henderson  <rth@redhat.com>
147
148         * config/sparc/sparc-opts.h (enum sparc_memory_model_type): New.
149         * config/sparc/sparc.opt (mmemory-model=): New option.
150         * doc/invoke.texi (Sparc Options): Document it.
151         * config/sparc/sparc.c (sparc_option_override): Provide default
152         for sparc_memory_model.
153         (sparc_emit_membar_for_model): Omit barrier combinations that are
154         implied by the memory model.
155
156 2011-11-30  Richard Henderson  <rth@redhat.com>
157
158         * config/sparc/sync.md (I124MODE): New mode iterator.
159         (memory_barrier): Remove.
160         (atomic_exchangesi): New.
161         (swapsi): Rename from *swapsi.
162         (atomic_test_and_set<I124MODE>): New.
163         (ldstubqi): Rename from *ldstubqi, merge with expander.
164         (ldstub<I24MODE>): Rename from *ldstub<I24MODE>, merge with expander.
165         (sync_lock_test_and_setsi): Remove.
166         (sync_lock_test_and_set<I12MODE>): Remove.
167
168 2011-11-30  Richard Henderson  <rth@redhat.com>
169
170         * config/sparc/constraints.md ("w"): New.
171         * config/sparc/predicates.md (mem_noofs_operand): New.
172         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Make static.
173         Generate the boolean result of the atomic_compare_exchange.
174         (sparc_expand_compare_and_swap): New.
175         * config/sparc/sync.md (atomic_compare_and_swap<I>): New.
176         (atomic_compare_and_swap<I48MODE>_1): Rename from
177         *sync_compare_and_swap<I48MODE>, use mem_noofs_operand.
178         (*atomic_compare_and_swapdi_v8plus): Rename from
179         *sync_compare_and_swapdi_v8plus, use mem_noofs_operand.
180         (sync_compare_and_swap<I12MODE>): Remove.
181         (sync_compare_and_swap<I48MODE>): Remove.
182
183 2011-11-30  Richard Henderson  <rth@redhat.com>
184
185         * config/sparc/predicates.md (register_or_v9_zero_operand): New.
186         * config/sparc/sparc.md (UNSPEC_ATOMIC): New.
187         * config/sparc/sync.md (atomic_load<I>): New.
188         (atomic_loaddi_1, atomic_store<I>, atomic_storedi_1): New.
189
190 2011-11-30  Richard Henderson  <rth@redhat.com>
191
192         * config/sparc/predicates.md (zero_or_v7_operand): New.
193         * config/sparc/sparc.c (sparc_emit_membar_for_model): New.
194         * config/sparc/sparc-protos.h: Update.
195         * config/sparc/sync.md (mem_thread_fence): New.
196         (memory_barrier): Use sparc_emit_membar_for_model.
197         (membar, *membar_empty, *membar_storestore, *membar_storeload): New.
198         (*membar_v8): Accept and ignore the membar mask.
199         (*membar): Accept and print the membar mask.
200
201 2011-11-30  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
202
203         * config/arm/arm.c (arm_issue_rate): Cortex-A15 can triple issue.
204         * config/arm/arm.md (mul64): New attribute.
205         (generic_sched): Cortex-A15 is not scheduled generically.
206         (cortex-a15.md): Include.
207         * config/arm/cortex-a15.md: New machine description.
208         * config/arm/t-arm (MD_INCLUDES): Add cortex-a15.md.
209
210 2011-11-30  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
211
212         * config/arm/t-arm (MD_INCLUDES): Ensure all md files are listed.
213
214 2011-11-30  Iain Sandoe  <iains@gcc.gnu.org>
215
216         * doc/tm.texi.in (NEXT_OBJC_RUNTIME): Update macro description.
217         * doc/tm.texi: Regenerate.
218         * flags.h (flag_next_runtime): Remove references.
219         * toplev.c: Likewise.
220         * defaults.h (NEXT_OBJC_RUNTIME): Provide default.
221         * gccspec.c (lang_specific_driver): Adjust use of NEXT_OBJC_RUNTIME.
222         * config/darwin.c (darwin_override_options): Provide default
223         Objective-C abi settings and target conflict checks.
224         * config/darwin.h (SUBTARGET_C_COMMON_OVERRIDE_OPTIONS): Remove unused
225         code. Adjust indenting.
226
227 2011-11-29  Joseph Myers  <joseph@codesourcery.com>
228
229         * config/sh/sh.h (enum reg_class, REG_CLASS_NAMES)
230         (REG_CLASS_CONTENTS): Add NON_SP_REGS.
231         (REGCLASS_HAS_GENERAL_REG): Handle NON_SP_REGS.
232         * config/sh/constraints.md (u): New constraint.
233
234 2011-11-29  Oleg Endo  <oleg.endo@t-online.de>
235
236         PR target/51337
237         * config/sh/sh.c (sh_secondary_reload): Add case when FPUL
238         register is being loaded from a pseudo in memory.
239
240 2011-11-29  DJ Delorie  <dj@redhat.com>
241
242         * config.gcc (rl78-*-elf): New case.
243         * doc/extend.texi: Add RL78 documentation.
244         * doc/invoke.texi: Likewise.
245         * doc/md.texi: Likewise.
246         * doc/contrib.texi: Add RL78.
247         * doc/install.texi: Add rl78-*-elf.
248         * config/rl78: New directory for the Renesas RL78.
249
250 2011-11-29  Jakub Jelinek  <jakub@redhat.com>
251
252         PR tree-optimization/51247
253         * tree-vrp.c (extract_range_from_assert): For signed 1-bit precision
254         types instead of adding 1 subtract -1 and instead of subtracting 1
255         add -1 to avoid overflows.
256
257 2011-11-29  Andrew MacLeod  <amacleod@redhat.com>
258
259         PR target/50123
260         * optabs.c (maybe_optimize_fetch_op): New.  Look for more optimal
261         instructions for a FECTH_OP or OP_FECTH sequence.
262         (expand_atomic_fetch_op): Call maybe_optimize_fetch_op.
263
264 2011-11-29  Uros Bizjak  <ubizjak@gmail.com>
265
266         * config/i386/sync.md (UNSPEC_LDA, UNSPEC_STA): New unspecs.
267         (movdi_via_fpu): Remove.
268         (loaddi_via_fpu): New insn pattern.
269         (storedi_via_fpu): Ditto.
270         (atomic_loaddi_fpu): Use loaddi_via_fpu and storedi_via_fpu.
271         (atomic_storedi_fpu): Ditto.
272         * reg-stack.c (get_true_reg): Handle UNSPEC_LDA.
273         (subst_stack_regs_pat): Handle UNSPEC_STA.
274
275 2011-11-29  Uros Bizjak  <ubizjak@gmail.com>
276
277         * config/i386/i386.md (*floathi<mode>2_i387_with_temp): Do not
278         allocate scratch memory for alternative 0.
279
280 2011-11-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
281
282         * config/rs6000/rs6000-builtins.def: Completely rewrite builtin
283         handling to centralize more of the builtins in this file.  Change
284         some builtin enumerations to be more consistant.  Use a new mask
285         to hold the current builtins, including SPE and PAIRED builtins
286         which no longer are set via target_flags masks.  Add
287         -mdebug=builtin debug support.  For power machines, define all
288         Altivec and VSX buitins when the compiler starts, but don't allow
289         the use of a builtin unless the appropriate switch is used, or
290         #pragma GCC target is used to change the options.  If the user
291         uses #pragma GCC target, update the appropriate hardware macros.
292         * common/config/rs6000/rs6000-common.c (rs6000_handle_option): Ditto.
293         * config/rs6000/rs6000.opt (rs6000_builtin_mask): Ditto.
294         * config/rs6000/rs6000-c.c (rs6000_macro_to_expand): Ditto.
295         (rs6000_define_or_undefine_macro): Ditto.
296         (rs6000_target_modify_macros): Ditto.
297         (rs6000_cpu_cpp_builtins): Ditto.
298         (altivec_overloaded_builtins): Ditto.
299         (altivec_build_resolved_builtin): Ditto.
300         * config/rs6000/rs6000.c (rs6000_target_modify_macros_ptr): Ditto.
301         (rs6000_builtin_info): Ditto.
302         (def_builtin): Ditto.
303         (enable_mask_for_builtins): Ditto.
304         (DEBUG_FMT_X): Ditto.
305         (rs6000_debug_reg_global): Ditto.
306         (rs6000_builtin_mask_calculate): Ditto.
307         (rs6000_option_override_internal): Ditto.
308         (rs6000_builtin_conversion): Ditto.
309         (rs6000_builtin_vectorized_function): Ditto.
310         (bdesc_3arg): Ditto.
311         (bdesc_dst): Ditto.
312         (bdesc_2arg): Ditto.
313         (builtin_description_predicates): Ditto.
314         (bdesc_altivec_preds): Ditto.
315         (bdesc_spe_predicates): Ditto.
316         (bdesc_spe_evsel): Ditto.
317         (bdesc_paired_preds): Ditto.
318         (bdesc_abs): Ditto.
319         (bdesc_1arg): Ditto.
320         (rs6000_overloaded_builtin_p): Ditto.
321         (rs6000_expand_unop_builtin): Ditto.
322         (bdesc_2arg_spe): Ditto.
323         (spe_expand_builtin): Ditto.
324         (rs6000_invalid_builtin): Ditto.
325         (rs6000_expand_builtin): Ditto.
326         (rs6000_init_builtins): Ditto.
327         (spe_init_builtins): Ditto.
328         (paired_init_builtins): Ditto.
329         (altivec_init_builtins): Ditto.
330         (builtin_function_type): Ditto.
331         (rs6000_common_init_builtins): Ditto.
332         (rs6000_builtin_reciprocal): Ditto.
333         (rs6000_builtin_mask_names): Ditto.
334         (rs6000_pragma_target_parse): Ditto.
335         (rs6000_function_specific_print): Ditto.
336         * config/rs6000/rs6000.h (MASK_DEBUG_BUILTIN): Ditto.
337         (MASK_DEBUG_ALL): Ditto.
338         (TARGET_DEBUG_BUILTIN): Ditto.
339         (TARGET_EXTRA_BUILTINS): Ditto.
340         (REGISTER_TARGET_PRAGMAS): Ditto.
341         (enum rs6000_btc): Ditto.
342         (RS6000_BTC_*): Ditto.
343         (RS6000_BTM_*): Ditto.
344         (enum rs6000_builtins): Ditto.
345         * config/rs6000/rs6000-protos.h (rs6000_overloaded_builtin_p): Ditto.
346         (rs6000_target_modify_macros): Ditto.
347         (rs6000_target_modify_macros_ptr): Ditto.
348
349         * config/rs6000/vector.md (unsfloat<VEC_int><mode>2): Use the
350         standard name for converting vector unsigned values to floating
351         point.  Delete the TARGET_VECTORIZE_BUILTIN_CONVERSION hook, which
352         is handled by machine independent code.
353         * config/rs6000/rs6000.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Ditto.
354         (rs6000_builtin_conversion): Ditto.
355
356 2011-11-29  Dodji Seketeli  <dodji@redhat.com>
357
358         * tree-diagnostic (struct loc_t): Rename into struct loc_map_pair.
359         (maybe_unwind_expanded_macro_loc): Adjust.
360
361 2011-11-29  David Edelsohn  <dje.gcc@gmail.com>
362             Aldy Hernandez  <aldyh@redhat.com>
363
364         * trans-mem.c (ipa_tm_create_version_alias): Mangle new_decl
365         if DECL_ONE_ONLY.
366         (ipa_tm_create_version): Same.
367
368 2011-11-29  Bernd Schmidt  <bernds@codesourcery.com>
369
370         * haifa-sched.c (recompute_todo_spec): Simplify and correct the
371         code checking for a clobber of a condition register when deciding
372         whether to predicate.
373
374 2011-11-29   Diego Novillo  <dnovillo@google.com>
375
376         * gimple.c (gimple_call_set_cannot_inline): Move from gimple.h.
377         Update field call_stmt_cannot_inline_p from call graph edge, if needed.
378         * gimple.h (gimple_call_set_cannot_inline): Move to gimple.c.
379
380 2011-11-29  Sameera Deshpande  <sameera.deshpande@arm.com>
381
382         * config/arm/arm.md (arm_movdi): Update NEG_POOL_RANGE.
383         (movdf_soft_insn): Likewise.
384         * config/arm/fpa.md (thumb2_movdf_fpa): Likewise.
385         * config/arm/neon.md (neon_mov<mode>): Likewise.
386         * config/arm/vfp.md (movdi_vfp): Likewise.
387         (movdi_vfp_cortexa8): Likewise.
388         (movdf_vfp): Likewise.
389
390 2011-11-29  Jakub Jelinek  <jakub@redhat.com>
391
392         PR middle-end/50074
393         * expr.c (expand_expr_addr_expr_1): Don't call force_operand for
394         EXPAND_SUM modifier.
395
396 2011-11-29  Ira Rosen  <ira.rosen@linaro.org>
397
398         PR tree-optimization/51301
399         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check that
400         the last statement doesn't convert to a bigger type than the original
401         type of the computation.
402
403 2011-11-28  Richard Henderson  <rth@redhat.com>
404
405         * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
406         Handle overlap between retval and oldval.  Always compute boolval
407         from CR0 EQ value.
408
409 2011-11-28  Jakub Jelinek  <jakub@redhat.com>
410
411         PR debug/50317
412         * tree-ssa.c (execute_update_addresses_taken): Remove
413         var ={v} {CLOBBER} stmts instead of rewriting them into
414         var_N ={v} {CLOBBER}.
415
416         PR middle-end/50907
417         * function.c (convert_jumps_to_returns): When redirecting an edge
418         succ to EXIT_BLOCK_PTR, clear EDGE_CROSSING flag.
419
420         PR tree-optimization/50078
421         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Copy over
422         TREE_THIS_VOLATILE also from the old to new lhs resp. rhs.
423
424         PR tree-optimization/50682
425         * tree-eh.c (maybe_remove_unreachable_handlers): New function.
426         * tree-flow.h (maybe_remove_unreachable_handlers): New prototype.
427         * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Call it.
428
429 2011-11-28  Georg-Johann Lay  <avr@gjlay.de>
430
431         * doc/extend.texi (AVR Built-in Functions): Add documentation for
432         __builtin_avr_map8 and __builtin_avr_map16.
433
434         * config/avr/avr.md: Document new %t and %T asm output codes.
435         (define_c_enum "unspec"): Add UNSPEC_MAP_BITS.
436         (adjust_len): Add map_bits.
437         (map_bitsqi, map_bitshi): New insns.
438         * config/avr/avr-protos.h (avr_out_map_bits): New.
439         * config/avr/avr-protos.c (print_operand): Implement %t and %T.
440         (adjust_insn_length): Handle ADJUST_LEN_MAP_BITS.
441         (avr_double_int_push_digit): New function.
442         (avr_map, avr_revert_map, avr_swap_map, avr_id_map): New functions.
443         (avr_sig_map, avr_map_hamming_byte): New functions.
444         (avr_out_swap_bits, avr_out_revert_bits, avr_move_bits,
445         avr_out_map_bits): New functions.
446         (enum avr_builtin_id): Add AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
447         (avr_init_builtins): Populate __builtin_avr_map8, __builtin_avr_map16.
448         (bdesc_2arg): Add __builtin_avr_map8, __builtin_avr_map16 ...
449         (avr_expand_builtin): ...and expand them.
450         * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in defines:
451         __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.
452
453 2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>
454
455         PR target/51278
456         * config/mips/mips.c (mips_rtx_costs): Handle baddu.
457
458 2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>
459
460         * config/mips/mips.c (mips16_unextended_reference_p): Test for BLKmode.
461
462 2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>
463
464         * config/mips/mips-protos.h (mips_emit_binary): Declare.
465         * config/mips/mips.c (mips_emit_binary): Make global.
466         (mips_set_mips16_mode): Turn off -mfix-r4000 in MIPS16 mode.
467         (mips_conditional_register_usage): Don't treat LO and HI as
468         register operands in MIPS16 mode.
469         (mips_mulsidi3_gen_fn): Use {u,}mulsidi3_{32,64}bit_mips16
470         for MIPS16 code.
471         * config/mips/predicates.md (muldiv_target_operand): New predicate.
472         (move_operand): Allow hilo_operand.
473         * config/mips/mips.md (mul<mode>3): Explicitly specify LO as the
474         target of MIPS16 multiplies, then move it into the target register.
475         (mul<mode>3_internal, *macc2, *msac2): Use muldiv_target_operand.
476         (<u>mulsidi3_32bit_mips16): New expander.
477         (<u>mulsidi3_32bit): Use muldiv_target_operand.
478         (<u>mulsidi3_32bit_r4000): Disable for ISA_HAS_DSP.
479         (<u>mulsidi3_64bit): Require !TARGET_MIPS16.  Split into
480         <u>mulsidi3_64bit_split.
481         (<u>mulsidi3_64bit_mips16): New expander.
482         (<u>mulsidi3_64bit_split): Likewise, using expansions from
483         two previous define_splits.
484         (<u>mulsidi3_64bit_hilo, *muls<u>_di, <u>msubsidi4): Use
485         muldiv_target_operand.
486         (<su>mulsi3_highpart): Use <su>mulsi3_highpart_split for MIPS16 code.
487         (<su>mulsi3_highpart_internal): Require !TARGET_MIPS16.
488         Split into <su>mulsi3_highpart_split.
489         (<su>mulsi3_highpart_split): New expander.
490         (<su>muldi3_highpart): Turn into a define_expand.
491         Use <su>muldi3_highpart_split for MIPS16 code.
492         (<su>muldi3_highpart_internal): Renamed from <su>muldi3_highpart.
493         Require !TARGET_MIPS16.  Split into <su>muldi3_highpart_split.
494         (<su>muldi3_highpart_split): New expander.
495         (<u>mulditi3): Explicitly specify LO as the target of MIPS16
496         multiplies, then move it into the target register.
497         (<u>mulditi3_internal, <u>maddsidi4): Use muldiv_target_operand.
498         (divmod<mode>4, udivmod<mode>4): Turn into define_expands.
499         Use <u>divmod<mode>4_split for MIPS16 code, then explicitly
500         move LO into operand 0.
501         (divmod<mode>4_internal, udivmod<mode>4_internal): Renamed
502         from <u>divmod<mode>4.  Use muldiv_target_operand.
503         Require !TARGET_MIPS16.  Split into <u>divmod<mode>4_split.
504         (<u>divmod<mode>4_split): New expander.
505         (<u>divmod<GPR:mode>4_hilo_<HILO:mode>): Use muldiv_target_operand.
506         (mfhi<GPR:mode>_<HILO:mode>): Use hilo_operand.
507
508 2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>
509
510         * hard-reg-set.h (target_hard_regs): Add x_accessible_reg_set
511         and x_operand_reg_set.
512         (accessible_reg_set, operand_reg_set): New macros.
513         * reginfo.c (init_reg_sets): Initialize accessible_reg_set and
514         operand_reg_set.
515         (saved_accessible_reg_set, saved_operand_reg_set): New variables.
516         (save_register_info): Save them.
517         (restore_register_info): Restore them.
518         (init_reg_sets_1): Limit operand_reg_set to accessible_reg_set.
519         Remove NO_REGS registers from operand_reg_set.  Treat members
520         of operand_reg_set as fixed.
521         * recog.c (general_operand): Check operand_reg_set rather than NO_REGS.
522         (register_operand, nonmemory_operand): Likewise.
523         * varasm.c (make_decl_rtl): Always use DECL_MODE as the mode of
524         register variables.  Check accessible_reg_set and operand_reg_set.
525         * config/mips/mips.c (mips_conditional_register_usage): Remove
526         inaccessible register from accessible_reg_set, rather than just
527         making them fixed.
528
529 2011-11-27  Gerald Pfeifer  <gerald@pfeifer.com>
530
531         * config/pa/pa-linux.h (TARGET_GAS): Remove comment.
532
533 2011-11-26  Richard Henderson  <rth@redhat.com>
534
535         * config/arm/arm.c (arm_init_libfuncs): Call init_sync_libfuncs
536         for Linux.
537
538 2011-11-26  Richard Henderson  <rth@redhat.com>
539
540         * optabs.c (expand_atomic_fetch_op): Always return result.
541
542         * optabs.c (init_sync_libfuncs_1): Include max in iteration.
543
544         * omp-low.c (expand_omp_atomic): Assume anything aligned to
545         BIGGEST_ALIGNMENT is aligned.
546
547 2011-11-26  Richard Henderson  <rth@redhat.com>
548
549         * config/m68k/m68k.md (UNSPECV_CAS_1, UNSPECV_CAS_2): New.
550         (UNSPECV_TAS_1, UNSPECV_TAS_2): New.
551         (I): New mode iterator.
552         (xz): New mode attribute.
553         * config/m68k/sync.md: New file.
554
555         * config/m68k/linux.h (TARGET_INIT_LIBFUNCS): New.
556         * config/m68k/m68k.c (m68k_init_sync_libfuncs): New.
557
558 2011-11-26  Nathan Sidwell  <nathan@acm.org>
559
560         PR gcov-profile/51297
561         * gcov.c (main): Allocate initial names and sources arrays.
562         (find_source): Don't check for null name or source arrays here.
563
564 2011-11-26  Jakub Jelinek  <jakub@redhat.com>
565
566         PR rtl-optimization/49912
567         * cfgrtl.c (rtl_verify_flow_info_1): Ignore also EDGE_PRESERVE bit
568         when counting n_branch.
569
570 2011-11-26  Uros Bizjak  <ubizjak@gmail.com>
571
572         * config/i386/sync.md (movdi_via_fpu): Add %Z insn suffixes.
573
574 2011-11-26  Joern Rennecke  <joern.rennecke@embecosm.com>
575
576         PR middle-end/50074
577         * calls.c (mem_overlaps_already_clobbered_arg_p):
578         Return false if no outgoing arguments have been stored so far.
579
580 2011-11-25  Georg-Johann Lay  <avr@gjlay.de>
581
582         * config/avr/avr.c (print_operand): Support code = 'i' for CONST_INT.
583
584 2011-11-24  Andrew MacLeod  <amacleod@redhat.com>
585
586         PR other/51011
587         * tree.h (is_builtin_name): No longer external.
588         * builtins.c (is_builtin_name): Make static.
589         * varasm.c (incorporeal_function_p): __sync and __atomic external calls
590         are not incorporeal and may need asm label processing.
591
592 2011-11-25  Georg-Johann Lay  <avr@gjlay.de>
593
594         PR target/50566
595         * config/avr/avr-protos.h (avr_log_t): Add field .builtin.
596         * config/avr/avr-log.c (avr_log_set_avr_log): Initialize it.
597         Don't bypass TARGET_ALL_DEBUG.  Print self-info with ?.
598         (avr_log_vadump): Support %D and %X to print double_int.
599         (avr_double_int_pop_digit): New static function.
600         (avr_dump_double_int_hex): New static function.
601
602 2011-11-24  Enkovich Ilya  <ilya.enkovich@intel.com>
603
604         PR target/51287
605         * config/i386/i386.c (distance_non_agu_define_in_bb): Fix insn
606         attr check.
607
608 2011-11-24  Andrew MacLeod  <amacleod@redhat.com>
609
610         * optab.c (maybe_emit_atomic_exchange): New.  Try to emit an
611         atomic_exchange pattern.
612         (maybe_emit_sync_lock_test_and_set): New.  Try to emit an exchange
613         using __sync_lock_test_and_set.
614         (maybe_emit_compare_and_swap_exchange_loop): New. Try to emit an
615         exchange using a compare_and_swap loop.
616         (expand_sync_lock_test_and_set): New.  Expand sync_lock_test_and_set.
617         (expand_atomic_test_and_set): New.  Expand test_and_set operation.
618         (expand_atomic_exchange): Use new maybe_emit_* functions.
619         (expand_atomic_store): Use new maybe_emit_* functions.
620         * builtins.c (expand_builtin_sync_lock_test_and_set): Call
621         expand_sync_lock_test_and_set routine.
622         (expand_builtin_atomic_exchange): Remove parameter from call.
623         (expand_builtin_atomic_clear): Use atomic_clear pattern if present.
624         (expand_builtin_atomic_test_and_set): Add target and simply call
625         expand_atomic_test_and_set.
626         (expand_builtin): Add target to expand_builtin_atomic_test_and_set.
627         * expr.h (expand_atomic_exchange): Add parameter.
628         (expand_sync_lock_test_and_set): New prototype.
629         (expand_atomic_test_and_set, expand_atomic_clear): New prototypes.
630
631 2011-11-24  H.J. Lu  <hongjiu.lu@intel.com>
632
633         PR target/51134
634         * config/i386/i386.h (processor_costs): Revert revision 181357.
635         * config/i386/i386.c (cost models): Likewise.
636         (core_cost): Likewise.
637         (promote_duplicated_reg): Likewise.
638         (promote_duplicated_reg_to_size): Likewise.
639         (processor_target): Likewise.
640         (expand_set_or_movmem_via_loop_with_iter): Likewise.
641         (expand_set_or_movmem_via_loop): Likewise.
642         (emit_strset): Likewise.
643         (expand_movmem_epilogue): Likewise.
644         (expand_setmem_epilogue): Likewise.
645         (expand_movmem_prologue): Likewise.
646         (expand_setmem_prologue): Likewise.
647         (expand_constant_movmem_prologue): Likewise.
648         (expand_constant_setmem_prologue): Likewise.
649         (decide_alg): Likewise.
650         (decide_alignment): Likewise.
651         (ix86_expand_movmem): Likewise.
652         (ix86_expand_setmem): Likewise.
653         (ix86_slow_unaligned_access): Likewise.
654         * config/i386/i386.md (strset): Likewise.
655         * config/i386/sse.md (vec_dupv4si): Likewise.
656         (vec_dupv2di): Likewise.
657
658 2011-11-24  Georg-Johann Lay  <avr@gjlay.de>
659
660         * config/avr/avr.md (*rotlhi2.15): Set length to 4.
661
662 2011-11-24  Razya Ladelsky  <razya@il.ibm.com>
663
664         * tree-data-ref.c (initialize_data_dependence_relation): Update
665         comment for the self dependence case.
666         (compute_self_dependence): Remove.
667         * tree-vect-data-refs.c (vect_analyze_data_refs): Remove call to
668         compute_self_dependenc.
669
670 2011-11-24  Alan Modra  <amodra@gmail.com>
671
672         * c-decl.c (warn_if_shadowing): Don't warn if shadowed
673         identifier is from system header.
674
675 2011-11-23  Jakub Jelinek  <jakub@redhat.com>
676
677         PR target/51261
678         * config/i386/i386.c (decide_alg): Initialize *dynamic_check
679         even if !optimize.
680
681 2011-11-23  Vladimir Makarov  <vmakarov@redhat.com>
682
683         PR rtl-optimization/48455
684         * doc/invoke.texi (-fira-region): Document default values.
685
686         * flags-types.h (enum ira_region): Add new value
687         IRA_REGION_AUTODETECT.
688
689         * common.opt (fira-region): Set up initial value to
690         IRA_REGION_AUTODETECT.
691
692         * toplev.c (process_options): Set up flag_ira_region depending on
693         -O options.
694
695         * ira.c (ira.c): Remove optimize guard for ira_build.
696
697 2011-11-23  Chung-Lin Tang  <cltang@codesourcery.com>
698
699         PR rtl-optimization/50496
700         * jump.c (redirect_jump): Assert fail on nlabel == NULL_RTX
701         only after epilogue is created. Add comments.
702
703 2011-11-22  Richard Henderson  <rth@redhat.com>
704
705         * config/ia64/ia64.c (ia64_expand_atomic_op): Add model parameter.
706         Generate the barrier required for the memory model.
707         (rtx_needs_barrier): Handle UNSPEC_FETCHADD_REL, UNSPEC_CMPXCHG_REL.
708         * config/ia64/ia64-protos.h: Update.
709         * config/ia64/ia64.md (UNSPEC_FETCHADD_REL): New.
710         (UNSPEC_CMPXCHG_REL): New.
711         * config/ia64/sync.md (mem_thread_fence): New.
712         (atomic_load<IMODE>, atomic_store<IMODE>): New.
713         (atomic_compare_and_swap<IMODE>): New.
714         (cmpxchg_acq_<I124MODE>, cmpxchg_acq_di): New.
715         (atomic_exchange<IMODE>): New.
716         (xchg_acq_<IMODE>): Rename from sync_lock_test_and_set<IMODE>.
717         (atomic_<FETCHOP><IMODE>, atomic_nand<IMODE>): New.
718         (atomic_fetch_<FETCHOP><IMODE>, atomic_fetch_nand<IMODE>): New.
719         (atomic_<FETCHOP>_fetch<IMODE>, atomic_nand_fetch<IMODE>): New.
720         (fetchadd_rel_<I48MODE>): New.
721         (sync_<FETCHOP><IMODE>, sync_nand<IMODE>): Remove.
722         (sync_old_<FETCHOP><IMODE>, sync_old_nand<IMODE>): Remove.
723         (sync_new_<FETCHOP><IMODE>, sync_new_nand<IMODE>): Remove.
724         (sync_compare_and_swap<IMODE>): Remove.
725         (sync_lock_release<IMODE>): Remove.
726
727         * config/ia64/ia64.md: Use define_c_enum for UNSPEC_*
728         and UNSPECV_* constants.
729
730 2011-11-22  Tom de Vries  <tom@codesourcery.com>
731
732         PR rtl-optimization/50764
733         * sched-deps.c (sched_analyze_insn): Make sure frame-related insns are
734         not moved past preceding jump.
735
736 2011-11-22  Jeff Law  <law@redhat.com>
737
738         * doc/contrib.texi: Add entry for David Binderman.
739
740 2011-11-22  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
741
742         * postreload.c (reload_combine): Mark reg_state as invalid at
743         volatile insns if there has been a use already.
744
745 2011-11-21  Aldy Hernandez  <aldyh@redhat.com>
746
747         * opts.c (finish_options): Do not fail for -fgnu-tm.
748         * gimple-streamer-out.c (output_gimple_stmt): Handle
749         GIMPLE_TRANSACTION.
750         * gimple-streamer-in.c (input_gimple_stmt): Same.
751         * lto-cgraph.c (input_overwrite_node): Read tm_clone bit.
752         (lto_output_node): Write tm_clone bit.
753
754 2011-11-22  Ian Lance Taylor  <iant@google.com>
755
756         * doc/install.texi (Configuration): Correct doc of
757         --enable-build-poststage1-with-cxx: it is not experimental.
758
759 2011-11-22  Jakub Jelinek  <jakub@redhat.com>
760
761         PR tree-optimization/51074
762         * fold-const.c (fold_binary_loc): Fix up VEC_INTERLEAVE_*_EXPR
763         handling for BYTES_BIG_ENDIAN.
764         * optabs.c (can_vec_perm_for_code_p): Likewise.
765
766 2011-11-22  Michael Matz  <matz@suse.de>
767
768         PR other/51125
769         * trans-mem.c (expand_block_tm): Ignore clobbers.
770
771 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
772
773         *  config/darwin.h (ENDFILE_SPEC): New.
774         (DARWIN_CRT1_SPEC): Add crttms.o.
775         (STARTFILE_SPEC): Likewise for dynamic libs and bundles.
776         * config/i386.h (ENDFILE_SPEC): Amend to include crttme.o.
777
778 2011-11-22  Michael Matz  <matz@suse.de>
779
780         PR c++/51264
781         * tree.c (iterative_hash_expr): Remove break after return.
782
783 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
784
785         * target.def (tm_clone_table_section): New hook.
786         * doc/tm.texi.in (TARGET_ASM_TM_CLONE_TABLE_SECTION): Define.
787         * doc/tm.texi: Regenerate.
788         * varasm.c (dump_tm_clone_pairs): Use target tm_clone_table_section.
789         * output.h (default_clone_table_section): New prototype.
790         * config/darwin.h (TARGET_ASM_TM_CLONE_TABLE_SECTION): New.
791         * config/darwin-protos.h (darwin_tm_clone_table_section): New prototype.
792         * config/darwin.c (darwin_tm_clone_table_section): New.
793
794 2011-11-21  Torvald Riegel  <triegel@redhat.com>
795
796         * trans-mem.c (diagnose_tm_1): Print an expression instead of a
797         declaration in error messages for indirect calls.
798
799 2011-11-21  David S. Miller  <davem@davemloft.net>
800
801         * config/sparc/sparc.c (sparc_regmode_natural_size): New function
802         implementing REGMODE_NATURAL_SIZE taking into consideration vector
803         modes.
804         (sparc_modes_tieable_p): Similarly for MODES_TIEABLE_P.
805         * config/sparc/sparc-protos.h (sparc_regmode_natural_size,
806         sparc_modes_tieable_p): Declare.
807         * gcc/config/sparc/sparc.h (REGMODE_NATURAL_SIZE,
808         MODES_TIEABLE_P): Use new helper functions.
809
810         Revert
811         2011-11-16  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
812
813         PR middle-end/50325
814         * expmed.c (store_bit_field_1): Use extract_bit_field on big
815         endian targets if the source cannot be exactly covered by word
816         mode chunks.
817
818 2011-11-21  Jakub Jelinek  <jakub@redhat.com>
819
820         PR debug/50827
821         * var-tracking.c (loc_cmp): For ENTRY_VALUEs use ENTRY_VALUE_EXP
822         macro instead of XEXP.
823
824 2011-11-21  Andreas Tobler  <andreast@fgznet.ch>
825
826         * configure: Regenerate.
827
828 2011-11-21  Georg-Johann Lay  <avr@gjlay.de>
829
830         * config/avr/avr.c (output_reload_in_const): Loading a byte with 0
831         must not affect cc0.
832         * config/avr/avr.md (*movhi, *movpsi, *movsi, *movsf): Zero to any
833         register does not change cc0. Same for any constant to ld-register.
834
835 2011-11-21  Uros Bizjak  <ubizjak@gmail.com>
836
837         * config/i386/mmx.md (unspec) <UNSPEC_MOVNTQ, UNSPEC_PFRCP,
838         UNSPEC_PFRCPIT1, UNSPEC_PFRCPIT2, UNSPEC_PFRSQRT, UNSPEC_PFRSQIT1>:
839         Move from config/i386/i386.md
840         (unspecv) <UNSPECV_EMMS, UNSPECV_FEMMS>: Ditto.
841         * config/i386/sse.md (unspec) <UNSPEC_MOVNT,UNSPEC_MOVU, UNSPEC_LDDQU,
842         UNSPEC_PSHUFB, UNSPEC_PSIGN, UNSPEC_PALIGNR, UNSPEC_EXTRQI,
843         UNSPEC_EXTRQ, UNSPEC_INSERTQI, UNSPEC_INSERTQ, UNSPEC_BLENDV,
844         UNSPEC_INSERTPS, UNSPEC_DP, UNSPEC_MOVNTDQA, UNSPEC_MPSADBW,
845         UNSPEC_PHMINPOSUW, UNSPEC_PTEST, UNSPEC_PCMPESTR, UNSPEC_PCMPISTR,
846         UNSPEC_FMADDSUB, UNSPEC_XOP_UNSIGNED_CMP, UNSPEC_XOP_TRUEFALSE,
847         UNSPEC_XOP_PERMUTE, UNSPEC_FRCZ, UNSPEC_AESENC, UNSPEC_AESENCLAST,
848         UNSPEC_AESDEC, UNSPEC_AESDECLAST, UNSPEC_AESIMC,
849         UNSPEC_AESKEYGENASSIST, UNSPEC_PCLMUL, UNSPEC_PCMP, UNSPEC_VPERMIL,
850         UNSPEC_VPERMIL2, UNSPEC_VPERMIL2F128, UNSPEC_CAST, UNSPEC_VTESTP,
851         UNSPEC_VCVTPH2PS, UNSPEC_VCVTPS2PH, UNSPEC_VPERMSI, UNSPEC_VPERMDF,
852         UNSPEC_VPERMSF, UNSPEC_VPERMTI, UNSPEC_GATHER, UNSPEC_VSIBADDR>: Ditto.
853         (unspecv) <UNSPECV_LDMXCSR, UNSPECV_STMXCSR, UNSPECV_CLFLUSH,
854         UNSPECV_MONITOR, UNSPECV_MWAIT, UNSPECV_VZEROALL, UNSPECV_VZEROUPPER>:
855         Ditto.
856         * config/i386/sync.md (unspec) <UNSPEC_LFENCE, UNSPEC_SFENCE,
857         UNSPEC_MFENCE, UNSPEC_MOVA>: Ditto.
858         (unspecv) <UNSPECV_CMPXCHG_1, UNSPECV_CMPXCHG_2, UNSPECV_CMPXCHG_3,
859         UNSPECV_CMPXCHG_4, UNSPECV_XCHG, UNSPECV_LOCK>: Ditto.
860         (sse2_lfence): Move from config/i386/sse.md.
861         (*sse2_lfence): Ditto.
862         (sse_sfence): Ditto.
863         (*sse_sfence): Ditto.
864         (sse2_mfence): Ditto.
865         (mfence_sse2): Ditto.  Rename from *sse2_mfence.  Enable also
866         for TARGET_64BIT.
867         (mem_thread_fence): Use mfence_sse2.
868
869 2011-11-21  Georg-Johann Lay  <avr@gjlay.de>
870
871         * config/avr/avr.h (struct base_arch_s): Add field sfr_offset.
872         * config/avr/avr-devices.c: Ditto. And initialize it.
873         * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in define
874         __AVR_SFR_OFFSET__.
875         * config/avr/avr-protos.h (out_movqi_r_mr, out_movqi_mr_r): Remove.
876         (out_movhi_r_mr, out_movhi_mr_r): Remove.
877         (out_movsi_r_mr, out_movsi_mr_r): Remove.
878         * config/avr/avr.md (*cbi, *sbi): Use %i instead of %m-0x20.
879         (*insv.io, *insv.not.io): Ditto.
880         * config/avr/avr.c (out_movsi_r_mr, out_movsi_mr_r): Make static.
881         (print_operand): Implement "%i" to print address as I/O address.
882         (output_movqi): Clean up call of out_movqi_mr_r.
883         (output_movhi): Clean up call of out_movhi_mr_r.
884         (avr_file_start): Use avr_current_arch->sfr_offset instead of
885         magic -0x20. Use TMP_REGNO, ZERO_REGNO instead of 0, 1.
886         (avr_out_sbxx_branch): Use %i instead of %m-0x20.
887         (out_movqi_r_mr, out_movqi_mr_r): Ditto. And make static.
888         (out_movhi_r_mr, out_movhi_mr_r): Ditto. And use avr_asm_len.
889         (out_shift_with_cnt): Clean up code: Use avr_asm_len.
890         (output_movsisf): Use output_reload_insisf for all CONSTANT_P sources.
891         (avr_out_movpsi): USE avr_out_reload_inpsi for all CONSTANT_P sources.
892         Clean up call of avr_out_store_psi.
893         (output_reload_in_const): Don't cut symbols longer than 2 bytes.
894         (output_reload_insisf): Filter CONST_INT_P or CONST_DOUBLE_P to
895         try if setting pre-cleared register is advantageous.
896         (avr_out_plus_1): Use gen_int_mode instead of GEN_INT.
897
898 2011-11-20  Joey Ye  <joey.ye@arm.com>
899
900         * expr.c (expand_expr_real_1): Correctly handle strict volatile
901         bitfield loads smaller than mode size.
902
903 2011-11-20  Richard Henderson  <rth@redhat.com>
904
905         * config/mips/mips.c (mips_init_libfuncs): Call init_sync_libfuncs.
906
907 2011-11-20  Uros Bizjak  <ubizjak@gmail.com>
908
909         PR target/51235
910         * config/i386/i386.c (ix86_expand_vcond): Generate TARGET_XOP
911         patterns for supported mode only.
912
913         PR target/51236
914         * config/i386/i386.c (ix86_expand_builtin)
915         <IX86_BUILTIN_GATHERALTSIV4DI>: Use CODE_FOR_avx2_gathersiv4di.
916
917 2011-11-20  Uros Bizjak  <ubizjak@gmail.com>
918
919         * config/i386/i386.md (UNSPEC_MOVNTI): Remove.
920         (UNSPEC_MOVNTQ): New unspec.
921         * config/i386/mmx.md (sse_movntq): Rename from sse_movntdi.
922         Use UNSPEC_MOVNTQ instead of UNSPEC_MOVNT.
923         * config/i386/sse.md (sse2_movnti<mode>): Use UNSPEC_MOVNT instead of
924         UNSPEC_MOVNTI.
925         (STORENT_MODE): Add DI and V4DI modes.
926
927 2011-11-20  Nathan Sidwell  <nathan@acm.org>
928
929         PR gcov-profile/51113
930         * coverage.c (build_var): Propagate visibility for public
931         decls.  Use make_decl_one_only for PIC correctness.
932
933         testsuite/
934         * gcc.misc-tests/gcov-13.c: Check gcovpart-13b coverage
935         * gcc.misc-tests/gcov-16.c: New.
936         * gcc.misc-tests/gcov-17.c: New.
937         * g++.dg/gcov/gcov-8.C: New.
938         * g++.dg/gcov/gcov-9.C: New.
939         * g++.dg/gcov/gcov-10.C: New.
940
941 2011-11-19  Eric Botcazou  <ebotcazou@adacore.com>
942
943         PR rtl-optimization/51187
944         * reorg.c (relax_delay_slots): Do not consider a jump useless if there
945         is a barrier between the jump and its target label.
946
947 2011-11-19  Patrick Marlier  <patrick.marlier@gmail.com>
948
949         PR middle-end/51211
950         * tracer.c (ignore_bb_p): Don't copy GIMPLE_TRANSACTION.
951
952 2011-11-19  Eric Botcazou  <ebotcazou@adacore.com>
953
954         * expmed.c (store_bit_field_1): Revert bogus formatting change.
955
956 2011-11-19  Richard Earnshaw  <rearnsha@arm.com>
957
958         PR target/50493
959         * config/arm/arm.c (neon_disambiguate_copy): Correctly handle partial
960         overlap of src and dest operands.
961
962 2011-11-19  Iain Sandoe  <iains@gcc.gnu.org>
963
964         * config/darwin.h (ASM_DEBUG_SPEC): New.
965         * config/darwin9.h (ASM_DEBUG_SPEC): New.
966
967 2011-11-18  Jan Hubicka  <jh@suse.cz>
968
969         * config/i386/i386.c (atom_cost): Disable SSE loop until alignment
970         issues are fixed.
971
972 2011-11-18  Anatoly Sokolov  <aesok@post.ru>
973
974         * config/cris/cris.c (cris_function_value_regno_p): Make static.
975         (TARGET_FUNCTION_VALUE_REGNO_P): Define.
976         * config/cris/cris.h (FUNCTION_VALUE_REGNO_P): Remove.
977         * config/cris/cris-protos.h (cris_function_value_regno_p): Remove.
978
979 2011-11-18  H.J. Lu  <hongjiu.lu@intel.com>
980
981         PR target/33944
982         * doc/extend.texi: Document __builtin_ia32_movnti64.
983
984         * config/i386/emmintrin.h (_mm_stream_si64): New.
985
986         * config/i386/i386-builtin-types.def: Add VOID_FTYPE_PLONGLONG_LONGLONG.
987
988         * config/i386/i386.c (ix86_builtins): Add IX86_BUILTIN_MOVNTI64.
989         (bdesc_special_args): Update __builtin_ia32_movnti.  Add
990         __builtin_ia32_movnti64.
991         (ix86_expand_special_args_builtin): Handle
992         VOID_FTYPE_PLONGLONG_LONGLONG.
993
994         * config/i386/i386.md (UNSPEC_MOVNTI): New.
995
996         * config/i386/sse.md (sse2_movntsi): Renamed to ...
997         (sse2_movnti<mode>): This.
998
999 2011-11-18  Georg-Johann Lay  <avr@gjlay.de>
1000
1001         PR target/49868
1002         * config/avr/avr.h (base_arch_s): Add field n_segments.
1003         (ADDR_SPACE_PGM1, ADDR_SPACE_PGM2, ADDR_SPACE_PGM3,
1004         ADDR_SPACE_PGM4, ADDR_SPACE_PGM5, ADDR_SPACE_PGMX): New address spaces.
1005         (AVR_HAVE_ELPM, AVR_HAVE_ELPMX): New defines.
1006         (INIT_EXPANDERS): New define.
1007         * config/avr/avr-protos.h (avr_mem_pgmx_p): New.
1008         (avr_init_expanders): New.
1009         (avr_emit_movmemhi, avr_out_movmem): New.
1010         (avr_xload_libgcc_p): New.
1011         * config/avr/avr-c.c (avr_register_target_pragmas): Register
1012         address spaces __pgm1, __pgm2,  __pgm3,  __pgm4  __pgm5,  __pgmx.
1013         (avr_cpu_cpp_builtins): Add built-in defines __PGM1,
1014         __PGM2, __PGM3, __PGM4, __PGM5, __PGMX.
1015         * config/avr/avr-devices.c (avr_arch_types): Set field n_segments.
1016
1017         * config/avr/avr.c (AVR_SECTION_PROGMEM): Change define to cover
1018         3 bits instead of just 1.
1019         (xstring_empty, xstring_e, rampz_rtx): New static GTYed variables.
1020         (progmem_section): Change from section to array of sections.
1021         (progmem_section_prefix): New static variable.
1022         (avr_file_start): Print set for __RAMPZ__
1023         (avr_option_override): Move initialization of RTXes from here...
1024         (avr_init_expanders): ...to this new function.
1025         (avr_pgm_segment): New static function.
1026         (avr_decl_pgm_p): Handle error_mark_node.
1027         (avr_mem_pgmx_p, avr_decl_pgmx_p): New static functions.
1028         (avr_out_xload, avr_find_unused_d_reg): New static functions.
1029         (expand_prologue, expand_epilogue): Use rampz_rtx.
1030         (print_operand): Hande CONST_STRING.
1031         (avr_xload_libgcc_p): New static function.
1032         (avr_out_lpm_no_lpmx, avr_out_lpm): Handle ELPM.
1033         (avr_progmem_p): Return 2 for 24-bit flash address space.
1034         (avr_out_sbxx_branch): Clean-up code from ASn macros.
1035         (out_movqi_r_mr, out_movqi_mr_r): Ditto. And recognize RAMPZ's
1036         address and print symbolically.
1037         (avr_asm_named_section, avr_section_type_flags,
1038         avr_encode_section_info, avr_asm_select_section,
1039         avr_addr_space_address_mode, avr_addr_space_pointer_mode,
1040         avr_addr_space_legitimate_address_p, avr_addr_space_convert,
1041         avr_addr_space_legitimize_address): Handle new address spaces.
1042         (avr_output_progmem_section_asm_op): New static function.
1043         (avr_asm_init_sections): Initialize progmem_section[].
1044         (adjust_insn_length): Handle ADJUST_LEN_XLOAD, ADJUST_LEN_MOVMEM.
1045         (avr_const_address_lo16): New static function.
1046         (avr_assemble_integer): Use it to handle 3-byte integers.
1047         (avr_emit_movmemhi, avr_out_movmem): New functions.
1048
1049         * config/avr/predicates.md (nox_general_operand): Handle new
1050         address spaces.
1051         * config/avr/avr.md (unspec): Add UNSPEC_MOVMEM.
1052         (adjust_len): Add xload, movmem.
1053         (SP_ADDR): New define_constants.
1054         (isa): Add "lpm", "lpmx", "elpm", "elpmx".
1055         (enabled): Handle them.
1056         (load<mode>_libgcc): New expander.
1057         (*load.<mode>.libgcc): Rename to load_<mode>_libgcc.
1058         (xload8_A, xload<mode>_A): New insn-and-splits.
1059         (xload_8, xload_<mode>_libgcc, xload_<mode>, loadmem_elpm): New insns.
1060         (mov<mode>): Handle new address spaces.
1061         (movmemhi): Rewrite using avr_emit_movmemhi.
1062         (MOVMEM_r_d): New mode attribute.
1063         (movmem_<mode>, movmem_qi_elpm): New insns.
1064         (setmemhi, *clrmemqi, *clrmemhi, strlenhi, *strlenhi): Unquote
1065         C-code.  Use label instead of hard-coded instrunction lengths.
1066
1067 2011-11-18  Martin Jambor  <mjambor@suse.cz>
1068
1069         PR tree-optimization/50605
1070         * gimple.c (is_gimple_ip_invariant_address): Also handle MEM_REFs
1071         of IPA invariant decls.
1072
1073 2011-11-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
1074
1075         * tree-outof-ssa.c (insert_back_edge_copies):  Add call to
1076         mark_dfs_back_edges.
1077
1078 2011-11-18  Iain Sandoe  <iains@gcc.gnu.org>
1079
1080         PR target/49992
1081         * configure.ac: Remove ranlib special-casing for Darwin.
1082         * configure: Regenerate.
1083
1084 2011-11-18  Uros Bizjak  <ubizjak@gmail.com>
1085
1086         PR tree-optimization/51118
1087         * fold-const.c (fold_checksum_tree): Check for TS_TYPED structure
1088         before using TREE_TYPE accessor on expr.
1089
1090 2011-11-17  Jan Hubicka  <jh@suse.cz>
1091
1092         PR bootstrap/51134
1093         * i386.c (atom_cost): Fix 32bit memset description.
1094         (expand_set_or_movmem_via_loop_with_iter): Output proper bounds check
1095         for epilogue loops.
1096         (expand_movmem_epilogue): Handle epilogues up to size 15 w/o producing
1097         byte loop.
1098         (decide_alg): sse_loop is not useable wthen SSE2 is disabled;
1099         when not optimizing always use rep movsb or lincall; do not produce
1100         word sized loops when optimizing memset for size (to avoid need
1101         for large constants).
1102         (ix86_expand_movmem): Get into sync with ix86_expand_setmem;
1103         choose unroll factors better; always do 128bit moves when producing
1104         SSE loops; do not produce loopy epilogue when size is too small.
1105         (promote_duplicated_reg_to_size): Do not look into desired alignments
1106         when doing vector expansion.
1107         (ix86_expand_setmem): Track better when promoted value is available;
1108         choose unroll factors more sanely. Output loopy epilogue only
1109         when needed.
1110
1111 2011-11-17  Steve Ellcey  <sje@cup.hp.com>
1112
1113         PR middle-end/51144
1114         * output.h (fprint_w): Remove.
1115         * final.c (fprint_w): Remove.
1116         (output_addr_const): Change fprint_w back to fprintf.
1117
1118 2011-11-17  Andrew Pinski  <apinski@cavium.com>
1119
1120         * config/host-linux.c (TRY_EMPTY_VM_SPACE): Define for MIPS.
1121
1122 2011-11-17  Andrew MacLeod  <amacleod@redhat.com>
1123
1124         * builtins.c (expand_builtin): Remove 4th parameter representing
1125         weak/strong mode when __atomic_compare_exchange becomes a library call.
1126
1127 2011-11-17  Richard Henderson  <rth@redhat.com>
1128
1129         * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap): Get
1130         new pseudo for target after convert_modes.
1131         (rs6000_expand_atomic_exchange, rs6000_expand_atomic_op): Likewise.
1132
1133 2011-11-17  Richard Henderson  <rth@redhat.com>
1134
1135         * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap): Get
1136         new pseudo for target after convert_modes.
1137         (rs6000_expand_atomic_exchange, rs6000_expand_atomic_op): Likewise.
1138
1139 2011-11-17  Richard Henderson  <rth@redhat.com>
1140
1141         * builtins.c (expand_builtin_mem_thread_fence): Remove.
1142         (expand_builtin_mem_signal_fence): Remove.
1143         (expand_builtin_atomic_thread_fence): Use expand_mem_thread_fence.
1144         (expand_builtin_sync_synchronize): Likewise.
1145         (expand_builtin_atomic_signal_fence): Use expand_mem_signal_fence.
1146         * optabs.c (expand_asm_memory_barrier): Split out from
1147         expand_builtin_mem_signal_fence.
1148         (expand_mem_thread_fence): New, a combination of code from
1149         expand_builtin_mem_thread_fence and expand_builtin_sync_synchronize.
1150         (expand_mem_signal_fence): Moved and renamed from
1151         expand_builtin_mem_signal_fence.
1152         (expand_atomic_exchange): Use expand_mem_thread_fence.
1153         (expand_atomic_load, expand_atomic_store): Likewise.
1154         * expr.h, optabs.h: Update decls.
1155
1156 2011-11-17  Bin Cheng  <bin.cheng@arm.com>
1157
1158         PR rtl-optimization/50663
1159         * cprop.c (implicit_set_indexes): New global variable.
1160         (insert_set_in_table): Add additional parameter and record implicit
1161         set information.
1162         (hash_scan_set): Add additional parameter and pass it to above.
1163         (hash_scan_insn): Pass false to hash_scan_set.
1164         (compute_hash_table_work): Pass true to hash_scan_set.
1165         (compute_cprop_data): Add implicit set to AVIN of block which the
1166         implicit set is recorded for.
1167         (one_cprop_pass): Handle implicit_set_indexes array.
1168
1169 2011-11-17  Michael Matz  <matz@suse.de>
1170
1171         PR middle-end/50644
1172         PR middle-end/50741
1173         * tree-ssa-live.c (mark_all_vars_used_1): Recurse only for decls of
1174         current function.
1175         (remove_unused_locals): Ditto.
1176
1177 2011-11-16  Richard Henderson  <rth@redhat.com>
1178
1179         * config/alpha/alpha.c (alpha_split_compare_and_swap_12): Copy
1180         ALIAS_SET_MEMORY_BARRIER when creating a new memory.
1181         (alpha_split_atomic_exchange_12): Likewise.
1182         * config/rs6000/rs6000.c (rs6000_adjust_atomic_subword): Likewise.
1183
1184 2011-11-16  Joseph Myers  <joseph@codesourcery.com>
1185
1186         * config/i386/i386elf.h (PREFERRED_DEBUGGING_TYPE): Remove.
1187
1188 2011-11-16  David Edelsohn  <dje.gcc@gmail.com>
1189
1190         * config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags):
1191         Default to minimum alignment if decl is NULL.
1192
1193 2011-11-16  Uros Bizjak  <ubizjak@gmail.com>
1194
1195         * config/i386/sse.md (round<mode>2_vec_pack_sfix): Optimize V2DFmode
1196         sequence for AVX.
1197         (<sse4_1>_round<ssemodesuffix>_vec_pack_sfix<avxsizesuffix>): Ditto.
1198
1199 2011-11-16  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>
1200
1201         * doc/invoke.texi: Document AMD bdver1 and btver1.
1202
1203 2011-11-16  Richard Earnshaw  <rearnsha@arm.com>
1204             Bernd Schmidt <bernds@coudesourcery.com>
1205             Sebastian Huber <sebastian.huber@embedded-brains.de>
1206
1207         PR target/49641
1208         * config/arm/arm.c (store_multiple_sequence): Avoid cases where
1209         the base reg is stored iff compiling for Thumb1.
1210
1211 2011-11-16  Razya Ladelsky  <razya@il.ibm.com>
1212
1213         PR tree-optimization/49960
1214         * tree-data-ref.c (initialize_data_dependence_relation): Add
1215         initializations.
1216         Remove call to compute_self_dependence.
1217         (compute_affine_dependence): Remove the !DDR_SELF_REFERENCE condition.
1218         (compute_self_dependence): Remove old code. Add call to
1219         compute_affine_dependence.
1220         (compute_all_dependences): Remove call to compute_self_dependence.
1221         Add call to compute_affine_dependence.
1222
1223 2011-11-16  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1224
1225         PR middle-end/50325
1226         * expmed.c (store_bit_field_1): Use extract_bit_field on big
1227         endian targets if the source cannot be exactly covered by word
1228         mode chunks.
1229
1230 2011-11-15  Joseph Myers  <joseph@codesourcery.com>
1231
1232         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Change STRING_LIMIT to
1233         ELF_STRING_LIMIT.
1234
1235 2011-11-15  Richard Henderson  <rth@redhat.com>
1236
1237         * config/alpha/alpha.c (alpha_pre_atomic_barrier): New.
1238         (alpha_post_atomic_barrier): New.
1239         (alpha_split_atomic_op): New memmodel argument; honor it.
1240         (alpha_split_compare_and_swap): Take array of operands.  Honor
1241         memmodel; always set bool output
1242         (alpha_expand_compare_and_swap_12): Similarly.
1243         (alpha_split_compare_and_swap_12): Similarly.
1244         (alpha_split_atomic_exchange): Similarly.  Rename from
1245         alpha_split_lock_test_and_set.
1246         (alpha_expand_atomic_exchange_12): Similarly.  Rename from
1247         alpha_expand_lock_test_and_set_12.
1248         (alpha_split_atomic_exchange_12): Similarly.  Rename from
1249         alpha_split_lock_test_and_set_12.
1250         * config/alpha/alpha-protos.h: Update.
1251         * config/alpha/alpha.md (UNSPECV_CMPXCHG): New.
1252         * config/alpha/constraints.md ("w"): New.
1253         * config/alpha/predicates.md (mem_noofs_operand): New.
1254         * config/alpha/sync.md (atomic_compare_and_swap<mode>): Rename from
1255         sync_compare_and_swap<mode>; add the new parameters.
1256         (atomic_exchange<mode>): Update from sync_test_and_set<mode>.
1257         (atomic_fetch_<op><mode>): Update from sync_old_<op><mode>.
1258         (atomic_<op>_fetch<mode>): Update from sync_new_<op><mode>.
1259         (atomic_<op><mode>): Update from sync_<op><mode>.
1260
1261 2011-11-16  Tom de Vries  <tom@codesourcery.com>
1262
1263         * tree-ssa-tail-merge.c (replace_block_by): Add frequency of bb2 to bb1.
1264
1265 2011-11-16  Alan Modra  <amodra@gmail.com>
1266
1267         PR rtl-optimization/51051
1268         PR bootstrap/51086
1269         * function.c (thread_prologue_and_epilogue_insns): Guard
1270         emitting return with single_succ_p test.
1271
1272 2011-11-15  Joern Rennecke  <joern.rennecke@embecosm.com>
1273
1274         * config/epiphany/epiphany.md (mov<mode>cc): Fix code to
1275         get mode from CMP_OP1 if CMP_OP0 is VOIDmode.
1276
1277 2011-11-15  Uros Bizjak  <ubizjak@gmail.com>
1278
1279         * config/i386/sse.md (vec_pack_trunc_v2df): Optimize sequence for AVX.
1280         (vec_pack_sfix_trunc_v2df): Ditto.
1281         (vec_pack_sfix_v2df): Ditto.
1282         (vec_pack_sfix_trunc_v4df): Generate fix_truncv4dfv4si2 and
1283         avx_vec_concatv8si patterns.
1284         (vec_pack_sfix_v4df): Generate avx_cvtpd2dq256 and
1285         avx_vec_concatv8si patterns.
1286
1287 2011-11-15  Torvald Riegel  <triegel@redhat.com>
1288
1289         * c-parser.c (c_parser_transaction_expression): Require parentheses
1290         when parsing transaction expressions.
1291
1292 2011-11-15  Tristan Gingold  <gingold@adacore.com>
1293
1294         * incpath.c (get_added_cpp_dirs): New function.
1295         * incpath.h (get_added_cpp_dirs): Declare.
1296         * config/vms/vms-c.c (vms_c_register_includes): New function.
1297         (vms_std_modules): New variable.
1298         * config/vms/vms.h (TARGET_EXTRA_INCLUDES): Define.
1299         (vms_c_register_includes): Declare.
1300
1301 2011-11-15  Tristan Gingold  <gingold@adacore.com>
1302
1303         * c-family/c-pragma.h (pragma_extern_prefix): Declare.
1304         * c-family/c-pragma.c (pragma_extern_prefix): Make it public.
1305         * config/vms/vms-c.c (saved_extern_prefix): New variable.
1306         (vms_pragma_extern_prefix): New function.
1307         (vms_c_register_pragma): Register vms_pragma_extern_prefix.
1308
1309 2011-11-15  Georg-Johann Lay  <avr@gjlay.de>
1310
1311         PR target/49868
1312         * config/avr/avr.h (ADDR_SPACE_PGM): New address spaces.
1313         (REGISTER_TARGET_PRAGMAS): New define.
1314         * config/avr/avr-protos.h (avr_mem_pgm_p): New.
1315         (avr_load_libgcc_p): New.
1316         (avr_register_target_pragmas): New.
1317         (asm_output_external_libcall): Remove.
1318         (avr_log_t): Add field "progmem".  Order alphabetically.
1319         * config/avr/avr-log.c (avr_log_set_avr_log): Set avr_log.progmem.
1320         * config/avr/avr-c.c (langhooks.h): New include.
1321         (avr_register_target_pragmas): New function. Register address
1322         space __pgm.
1323         (avr_cpu_cpp_builtins): Add built-in define __PGM.
1324
1325         * config/avr/avr.c: Include "c-family/c-common.h".
1326         (TARGET_LEGITIMATE_ADDRESS_P): Remove define.
1327         (TARGET_LEGITIMIZE_ADDRESS): Remove define.
1328         (TARGET_ADDR_SPACE_SUBSET_P): Define to...
1329         (avr_addr_space_subset_p): ...this new static function.
1330         (TARGET_ADDR_SPACE_CONVERT): Define to...
1331         (avr_addr_space_convert): ...this new static function.
1332         (TARGET_ADDR_SPACE_ADDRESS_MODE): Define to...
1333         (avr_addr_space_address_mode): ...this new static function.
1334         (TARGET_ADDR_SPACE_POINTER_MODE): Define to...
1335         (avr_addr_space_pointer_mode): ...this new static function.
1336         (TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Define to...
1337         (avr_addr_space_legitimate_address_p): ...this new static function.
1338         (TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS): Define to...
1339         (avr_addr_space_legitimize_address): ...this new static function.
1340         (avr_mode_code_base_reg_class): Handle address spaces.
1341         (avr_regno_mode_code_ok_for_base_p): Ditto.
1342         (lpm_addr_reg_rtx, lpm_reg_rtx, all_regs_rtx): New static variables.
1343         (avr_option_override): Initialize them.
1344         (output_reload_in_const): Use all_regs_rtx. Fix signedness of loop
1345         variables.
1346         (avr_pgm_segment): New static function.
1347         (avr_decl_pgm_p, avr_mem_pgm_p): New static functions.
1348         (avr_out_lpm, avr_out_lpm_no_lpmx): New static functions.
1349         (output_movqi, output_movhi, output_movsisf, avr_out_movpsi): Call
1350         avr_out_lpm to handle loads from progmem.
1351         (avr_load_libgcc_p): New static function.
1352         (avr_progmem_p): Test if decl is in flash.
1353         (avr_pgm_pointer_const_p): New static function.
1354         (avr_nonconst_pointer_addrspace): New static function.
1355         (avr_pgm_check_var_decl): New static function.
1356         (avr_insert_attributes): Use it.  Change error message to report
1357         cause (progmem or address space) when code wants to write to flash.
1358         (avr_section_type_flags): Unset section flag SECTION_BSS for
1359         data in progmem.
1360
1361         * config/avr/predicates.md (nop_general_operand): New predicate.
1362         (nox_general_operand): New predicate.
1363         * config/avr/avr.md (LPM_REGNO): New define_constant.
1364         (load<mode>_libgcc): New expander.
1365         (*load.<mode>.libgcc): New insn.
1366         (mov<mode>): Handle loads from non-generic AS.
1367         (movmemhi): Ditto.  Propagate address space information to newly
1368         created MEM.
1369         (movqi_insn, *movhi, *movpsi, *movsi, *movsf): Change predicate #1
1370         to nox_general_operand.
1371         (ashrqi3, ashrhi3, ashrsi3): Change predicate #1 to
1372         nop_general_operand.
1373         (ashlqi3, *ashlqi3, ashlhi3, ashlsi3): Ditto.
1374         (lshrqi3, *lshrqi3, lshrhi3, lshrsi3): Ditto.
1375         (split-lpmx): New split.
1376         (*ashlhi3_const, *ashlsi3_const, *ashrhi3_const, *ashrsi3_const,
1377         *lshrhi3_const, *lshrsi3_const): Indent, unquote C.
1378
1379 2011-11-15  Maxim Kuvyrkov  <maxim@codesourcery.com>
1380
1381         * ipa-cp.c (ipa_value_from_jfunc): Make global.
1382         (ipa_cst_from_jfunc): Remove, use ipa_value_from_jfunc instead.
1383         (get_indirect_edge_target): Rename, make global.
1384         (devirtualization_time_bonus, estimate_local_effects,)
1385         (ipcp_discover_new_direct_edges): Update.
1386         * ipa-inline-analysis.c (evaluate_conditions_for_edge):
1387         Generalize to also handle types.  Rename to ...
1388         (evaluate_properties_for_edge): Use instead of
1389         evaluate_conditions_for_edge.
1390         (estimate_edge_devirt_benefit): New function.
1391         (estimate_calls_size_and_time): Use it.
1392         (estimate_node_size_and_time, estimate_ipcp_clone_size_and_time,)
1393         (inline_merge_summary): Update.
1394         (do_estimate_edge_time, do_estimate_edge_growth): Update.  Calculate
1395         parameter information at the call site and pass it on to subroutines.
1396         * tree-inline.c (estimate_num_insns): Distinguish between direct and
1397         indirect calls.
1398         (init_inline_once): Set size and time costs or indirect calls.
1399         * tree-inline.h (eni_weights): Add indirect_call_cost.
1400
1401 2011-11-15  Tom de Vries  <tom@codesourcery.com>
1402
1403         PR tree-optimization/51005
1404         * tree-ssa-tail-merge.c (delete_basic_block_same_succ): Rename to
1405         mark_basic_block_deleted.
1406         (update_worklist): Inline purge_bbs.
1407         (purge_bbs, unlink_virtual_phi, update_vuses, vop_at_entry)
1408         (delete_block_update_dominator_info): Remove.
1409         (replace_block_by): Remove update_vops parameter.  Partially evaluate
1410         for update_vops == false.
1411         (apply_clusters): Remove update_vops parameter.  Remove update_vops
1412         argument in replace_block_by call.
1413         (update_debug_stmts): Remove MAY_HAVE_DEBUG_STMTS test.
1414         (tail_merge_optimize): Remove update_vops argument to apply_clusters.
1415         Remove call to purge_bbs.  Add calls to calculate_dominance_info and
1416         free_dominance_info.  Add MAY_HAVE_DEBUG_STMTS  before calling
1417         update_debug_stmts.  Mark vop var for renaming, if necessary.
1418
1419 2011-11-15  Bernd Schmidt  <bernds@codesourcery.com>
1420
1421         PR rtl-optimization/51051
1422         * cfgrtl.c (cfg_layout_can_merge_blocks_p): Return FALSE if the
1423         move would cause fallthrough into the exit block.
1424
1425 2011-11-14  Richard Henderson  <rth@redhat.com>
1426
1427         * config/rs6000/rs6000.c (emit_load_locked): Assert the mode is
1428         handled.
1429         (emit_store_conditional): Likewise.
1430         (rs6000_pre_atomic_barrier, rs6000_post_atomic_barrier): New.
1431         (rs6000_adjust_atomic_subword): New.
1432         (rs6000_mask_atomic_subword, rs6000_finish_atomic_subword): New.
1433         (rs6000_expand_atomic_op): Rename from rs6000_emit_sync; rewrite
1434         for pre-reload expansion.
1435         (rs6000_split_compare_and_swap, rs6000_split_compare_and_swapqhi,
1436         rs6000_expand_compare_and_swapqhi): Merge into ...
1437         (rs6000_expand_atomic_compare_and_swap): ... here.  New function.
1438         rs6000_split_lock_test_and_set; expand immediately.  Handle
1439         QImode and HImode.
1440         * config/rs6000/rs6000.md (UNSPEC_LWSYNC): Move and rename
1441         from UNSPECV_LWSYNC.
1442         * config/rs6000/sync.md (fetchopsi_constr, fetchopdi_constr): Remove.
1443         (mem_thread_fence): New.
1444         (hwsync): Rename from memory_barrier.
1445         (*hwsync): Rename from *sync_internal.
1446         (lwsync, *lwsync): Mirror hwsync implementation.
1447         (isync): Don't reference memory.
1448         (loadsync): New.
1449         (atomic_load<INT>, atomic_store<INT>): New.
1450         (ATOMIC): New mode iterator.
1451         (load_locked<ATOMIC>): Rename from load_locked_<GPR>.
1452         (store_conditional<ATOMIC>): Rename from store_conditional_<GPR>.
1453         (sync_compare_and_swap<GPR>): Remove.
1454         (sync_compare_and_swaphi, sync_compare_and_swapqi): Remove.
1455         (sync_compare_and_swapqhi_internal): Remove.
1456         (sync_lock_test_and_set<GPR>): Remove.
1457         (sync_<FETCHOP><INT1>): Remove.
1458         (*sync_<FETCHOP>si_internal, *sync_<FETCHOP>di_internal): Remove.
1459         (sync_nand<INT1>, *sync_nand<GPR>_internal): Remove.
1460         (sync_old_<FETCHOP><GPR>): Remove.
1461         (*sync_old_<FETCHOP>si_internal): Remove.
1462         (*sync_old_<FETCHOP>di_internal): Remove.
1463         (sync_old_nand<INT1>): Remove.
1464         (*sync_old_nand<GPR>_internal): Remove.
1465         (sync_new_<FETCHOP><GPR>): Remove.
1466         (*sync_new_<FETCHOP>si_internal): Remove.
1467         (*sync_new_<FETCHOP>di_internal): Remove.
1468         (sync_new_nand<INT1>): Remove.
1469         (*sync_new_nand<GPR>_internal): Remove.
1470         (*atomic_andsi, *atomic_anddi): Remove.
1471         (*sync_addshort_internal, *sync_subshort_internal): Remove.
1472         (*sync_andsi_internal, *sync_boolsi_internal): Remove.
1473         (*sync_boolcshort_internal): Remove.
1474         (sync_lock_release<INT1>): Remove.
1475         (atomic_compare_and_swap<INT1>): New.
1476         (atomic_exchange<INT1>): New.
1477         (atomic_<FETCHOP><INT1>, atomic_nand<INT1>): New.
1478         (atomic_fetch_<FETCHOP><INT1>, atomic_fetch_nand<INT1>): New.
1479         (atomic_<FETCHOP>_fetch<INT1>, atomic_nand_fetch<INT1>): New.
1480
1481 2011-11-14  Uros Bizjak  <ubizjak@gmail.com>
1482
1483         * config/i386/sse.md (round<mode>2): Use register_operand for
1484         operand 1 predicate.
1485         (round<mode>2_sfix): Ditto.
1486         (round<mode>2_vec_pack_sfix): Ditto for operand 1 and operand 2.
1487
1488 2011-11-14  Nathan Sidwell  <nathan@acm.org>
1489
1490         * gcov.c (canonicalize_name): Protect use of S_ISLNK.
1491
1492 2011-11-14  Jan Hubicka  <jh@suse.cz>
1493
1494         PR target/51126
1495         * config/i386/i386.c (core cost model): Correct pasto.
1496
1497 2011-11-14  Uros Bizjak  <ubizjak@gmail.com>
1498
1499         * config/i386/sse.md (round<mode>2_sfix): New expander.
1500         (round<mode>2_vec_pack_sfix): Ditto.
1501         (<sse4_1>_round<ssemodesuffix>_sfix<avxsizesuffix>): Ditto.
1502         (<sse4_1>_round<ssemodesuffix>_vec_pack_sfix<avxsizesuffix>): Ditto.
1503         * config/i386/builtin-types.def (V4SI_FTYPE_V4SF_ROUND,
1504         V8SI_FTYPE_V8SF_ROUND, V4SI_FTYPE_V2DF_V2DF_ROUND,
1505         V8SI_FTYPE_V4DF_V4DF_ROUND): New builtin types.
1506         * config/i386/i386.c (ix86_builtins): Add
1507         IX86_BUILTIN_{FLOORPD,CEILPD,ROUNDPD_AZ}_VEC_PACK_SFIX{,256} and
1508         IX86_BUILTIN_{FLOORPS,CEILPS,ROUNDPS_AZ}_SFIX{,256} defines.
1509         (bdesc_args): Add __builtin_ia32_{floorpd,ceilpd}_vec_pack_sfix{,256},
1510         __builtin_ia32_roundpd_az_vec_pack_sfix{,256},
1511         __builtin_ia32_{floorps,ceilps}_sfix{,256}and
1512         __builtin_ia32_roundps_az_sfix{,256} descriptions.
1513         (ix86_expand_sse_round_vec_pack_sfix): New.
1514         (ix86_expand_args_builtin): Handle V4SI_FTYPE_V4SF_ROUND,
1515         V8SI_FTYPE_V8SF_ROUND, V4SI_FTYPE_V2DF_V2DF_ROUND and
1516         V8SI_FTYPE_V4DF_V4DF_ROUND types.  Check last argument of
1517         CODE_FOR_sse4_1_roundpd_vec_pack_sfix, CODE_FOR_sse4_1_roundps_sfix,
1518         CODE_FOR_avx_roundpd_vec_pack_sfix256 and CODE_FOR_avx_roundps_sfix256.
1519         (ix86_builtin_vectorized_function): Handle
1520         BUILT_IN_{I,L,LL}FLOOR{,F}, BUILT_IN_{I,L,LL}CEIL{,F} and
1521         BUILT_IN_{I,L,LL}ROUND{,F}
1522
1523 2011-11-14  Jan Hubicka  <jh@suse.cz>
1524
1525         PR middle-end/50598
1526         * cgraph.h (varpool_externally_visible_p): Declare.
1527         (varpool_add_new_variable): Declare.
1528         * tree-emultls.c (get_emutls_init_templ_addr,
1529         new_emutls_decl): Use varpool_add_new_variable.
1530         * ipa.c (varpool_externally_visible_p): Export.
1531         * varpool.c (varpool_add_new_variable): New function.
1532
1533 2011-11-14  Michael Zolotukhin  <michael.v.zolotukhin@gmail.com>
1534             Jan Hubicka  <jh@suse.cz>
1535
1536         * config/i386/i386.h (processor_costs): Add second dimension to
1537         stringop_algs array.
1538         * config/i386/i386.c (cost models): Initialize second dimension of
1539         stringop_algs arrays.
1540         (core_cost): New costs based on generic64 costs with updated stringop
1541         values.
1542         (promote_duplicated_reg): Add support for vector modes, add
1543         declaration.
1544         (promote_duplicated_reg_to_size): Likewise.
1545         (processor_target): Set core costs for core variants.
1546         (expand_set_or_movmem_via_loop_with_iter): New function.
1547         (expand_set_or_movmem_via_loop): Enable reuse of the same iters in
1548         different loops, produced by this function.
1549         (emit_strset): New function.
1550         (expand_movmem_epilogue): Add epilogue generation for bigger sizes,
1551         use SSE-moves where possible.
1552         (expand_setmem_epilogue): Likewise.
1553         (expand_movmem_prologue): Likewise for prologue.
1554         (expand_setmem_prologue): Likewise.
1555         (expand_constant_movmem_prologue): Likewise.
1556         (expand_constant_setmem_prologue): Likewise.
1557         (decide_alg): Add new argument align_unknown.  Fix algorithm of
1558         strategy selection if TARGET_INLINE_ALL_STRINGOPS is set; Skip sse_loop
1559         (decide_alignment): Update desired alignment according to chosen move
1560         mode.
1561         (ix86_expand_movmem): Change unrolled_loop strategy to use SSE-moves.
1562         (ix86_expand_setmem): Likewise.
1563         (ix86_slow_unaligned_access): Implementation of new hook
1564         slow_unaligned_access.
1565         * config/i386/i386.md (strset): Enable half-SSE moves.
1566         * config/i386/sse.md (vec_dupv4si): Add expand for vec_dupv4si.
1567         (vec_dupv2di): Add expand for vec_dupv2di.
1568
1569 2011-11-14  Dimitrios Apostolou  <jimis@gmx.net>
1570
1571         PR bootstrap/51094
1572         PR middle-end/51116
1573         * config/elfos.h (TARGET_ASM_INTERNAL_LABEL): Remove.
1574         * varasm.c (default_elf_internal_label): Remove.
1575
1576 2011-11-14  Kai Tietz  <ktietz@redhat.com>
1577
1578         * gcov.c (generate_results): Add missing semicolon and correct indent.
1579
1580 2011-11-14  Ira Rosen  <ira.rosen@linaro.org>
1581
1582         PR bootstrap/51112
1583         * tree-vect-stmts.c (vectorizable_condition): Initialize comp_vectype.
1584
1585 2011-11-14  Mingjie Xing  <mingjie.xing@gmail.com>
1586
1587         * doc/invoke.texi (Wunused-result): Change @pxref{Variable Attributes}
1588         to @pxref{Function Attributes}.
1589
1590 2011-11-13  Oleg Endo  <oleg.endo@t-online.de>
1591
1592         PR target/50694
1593         * config/sh/sh.h (IS_LITTLE_ENDIAN_OPTION, UNSUPPORTED_SH2A):
1594         New macros.
1595         (DRIVER_SELF_SPECS): Use new macros to filter out unsupported options
1596         taking the default configuration into account.
1597
1598 2011-11-13  Jonathan Wakely  <jwakely.gcc@gmail.com>
1599
1600         * doc/install.texi (Specific): Fix anchor for
1601         x86_64-*-solaris2.1[0-9]*.
1602
1603 2011-11-13  Nathan Sidwell  <nathan@acm.org>
1604
1605         * gcov.c (source_prefix, source_length): New globals.
1606         (flag_relative_only): Likewise.
1607         (print_usage, options, process_args): Update.
1608         (generate_results): Use coverage.name, check
1609         flag_relative_only. Adjust messages.
1610         (find_source): Check source_prefix.
1611         (output_lines): Use coverage.name, adjust messages.
1612         * doc/gcov.texi (Invoking Gcov): Document new options.
1613
1614 2011-11-12  Jason Merrill  <jason@redhat.com>
1615
1616         PR c++/51060
1617         * gimplify.c (gimplify_target_expr): Add a clobber to the cleanup.
1618         (gimplify_modify_expr): Don't try to simplify it.
1619
1620 2011-11-12  Dimitrios Apostolou  <jimis@gmx.net>
1621
1622         PR bootstrap/51094
1623         * config/elfos.h (STRING_ASM_OP): Define.
1624         * varasm.c (default_elf_asm_output_limited_string): Use it.
1625
1626         PR bootstrap/51094
1627         * gcc/configure.ac: Check for stpcpy declaration.
1628         * system.h: Declare it if not.
1629         * config.in, configure: Regenerate.
1630
1631 2011-11-12  Richard Henderson  <rth@redhat.com>
1632
1633         * config/rs6000/rs6000.md (fix_trunc<SFDF>si2_stfiwx): Use
1634         nonimmediate_operand for the destination.
1635         (fixuns_trunc<SFDF>si2_stfiwx): Likewise.
1636
1637         * builtins.c (expand_builtin_compare_and_swap): If target is const0,
1638         don't pass the target to expand_atomic_compare_and_swap.
1639         (expand_builtin_atomic_compare_exchange): Likewise.
1640
1641         * config/sh/linux.h (TARGET_INIT_LIBFUNCS): New.
1642         * config/sh/sh.c (sh_init_sync_libfuncs): New.
1643
1644         * config/pa/pa-linux.h (TARGET_SYNC_LIBCALL): New.
1645         * config/pa/pa.h (TARGET_SYNC_LIBCALL): New default.
1646         * config/pa/pa.c (pa_init_libfuncs): Use init_sync_libfuncs.
1647
1648 2011-11-12  Iain Sandoe  <iains@gcc.gnu.org>
1649
1650         PR target/45233
1651         * config/rs6000/rs6000.c (rs6000_legitimize_reload_address):
1652         Only expand a symbol ref. into an access when the entity is defined
1653         in the TU.
1654
1655 2011-11-12  Jan Hubicka  <jh@suse.cz>
1656
1657         PR bootstrap/50822
1658         * cgraphunit.c (output_weakrefs): Output really only weakrefs.
1659
1660 2011-11-12  Nathan Sidwell  <nathan@acm.org>
1661
1662         * gcov.c (struct name_map): New.
1663         (names, n_names, a_names): New global vars.
1664         (print_usage): Adjust usage.
1665         (generate_results): Canonicalize main file name.
1666         (release_structures): Adjust.
1667         (name_search, name_sort): New callbacks.
1668         (find_source): Look for and create a canonical name.
1669         (canonicalize_name): New.
1670         (make_gcov_file_name): Reimplement and fix mangling.
1671         (mangle_name): New.
1672         * doc/gcov.texi: Update documentation about path preservation.
1673
1674 2011-11-11  David S. Miller  <davem@davemloft.net>
1675
1676         * config/sparc/linux.h (ASM_GENERATE_INTERNAL_LABEL): Delete.
1677         * config/sparc/linux64.h (ASM_GENERATE_INTERNAL_LABEL): Delete.
1678
1679 2011-11-11  Jakub Jelinek  <jakub@redhat.com>
1680
1681         * config/i386/i386-protos.h (ix86_maybe_emit_epilogue_vzeroupper):
1682         New prototype.
1683         * config/i386/i386.c (ix86_maybe_emit_epilogue_vzeroupper): New
1684         function.
1685         (ix86_expand_epilogue): Use it.
1686         * config/i386/i386.md (return, simple_return): Call it in the
1687         expanders.
1688
1689         PR tree-optimization/51091
1690         * tree-stdarg.c (execute_optimize_stdarg): Ignore TREE_CLOBBER_P
1691         rhs also in the va_list_simple_ptr case.
1692
1693         PR tree-optimization/51058
1694         * tree-vect-slp.c (vect_remove_slp_scalar_calls): New function.
1695         (vect_schedule_slp): Call it.
1696         * tree-vect-stmts.c (vectorizable_call): If slp_node != NULL,
1697         don't replace scalar calls with setting of their lhs to zero here.
1698
1699         PR tree-optimization/51074
1700         * fold-const.c (vec_cst_ctor_to_array, fold_vec_perm): New functions.
1701         (fold_binary_loc): Handle VEC_EXTRACT_EVEN_EXPR,
1702         VEC_EXTRACT_ODD_EXPR, VEC_INTERLEAVE_HIGH_EXPR and
1703         VEC_INTERLEAVE_LOW_EXPR with VECTOR_CST or CONSTRUCTOR operands.
1704         (fold_ternary_loc): Handle VEC_PERM_EXPR with VECTOR_CST or
1705         CONSTRUCTOR operands.
1706         * tree-ssa-propagate.c (valid_gimple_rhs_p): Handle ternary
1707         expressions.
1708         * tree-vect-generic.c (lower_vec_perm): Mask sel_int elements
1709         to 0 .. 2 * elements - 1.
1710
1711 2011-11-11  Richard Henderson  <rth@redhat.com>
1712
1713         * gimple-pretty-print.c (dump_gimple_omp_atomic_load): Dump needed.
1714         (dump_gimple_omp_atomic_store): Likewise.
1715         * optabs.c (can_atomic_exchange_p): New.
1716         * optabs.h (can_atomic_exchange_p): Declare.
1717         * omp-low.c (expand_omp_atomic_load): Implement.
1718         (expand_omp_atomic_store): Likewise.
1719         (expand_omp_atomic): Update for new arguments to load/store.
1720
1721 2011-11-11  Eric Botcazou  <ebotcazou@adacore.com>
1722
1723         * cprop.c: Adjust outdated comments throughout.
1724         (hash_scan_set): Rename PAT parameter into SET.
1725         (cprop_pavloc): Rename into...
1726         (cprop_avloc): ...this.
1727         (cprop_absaltered): Rename into...
1728         (cprop_kill): ...this.
1729         (alloc_cprop_mem): Adjust for above renaming.
1730         (free_cprop_mem): Likewise.
1731         (compute_cprop_data): Likewise.
1732         (compute_local_properties): Rename TRANSP parameter into KILL and
1733         adjust throughout.  Rework comments.
1734         (try_replace_reg): Fix long line.
1735         (cprop_jump): Likewise.
1736         (constprop_register): Fix prototype and take INSN last.
1737         (cprop_insn): Adjust calls to above function.  Fix long lines.
1738         (bypass_block): Likewise.
1739         (one_cprop_pass): Likewise.
1740
1741 2011-11-11  Uros Bizjak  <ubizjak@gmail.com>
1742
1743         * config/alpha/elf.h (ELF_ASCII_ESCAPES): Rename from ESCAPES.
1744         (ELF_STRING_LIMIT): Rename from STRING_LIMIT.
1745
1746 2011-11-11  Jason Merrill  <jason@redhat.com>
1747
1748         * varasm.c (default_elf_asm_output_limited_string): #ifdef
1749         ELF_ASCII_ESCAPES.
1750         (default_elf_asm_output_ascii): Likewise.
1751
1752 2011-11-11  Uros Bizjak  <ubizjak@gmail.com>
1753
1754         PR target/50762
1755         * config/i386/constraints.md (j): New address constraint.
1756         * config/i386/predicates.md (lea_address_operand): Redefine as
1757         special predicate.
1758         * config/i386/i386.md (*lea_3_zext): Use "j" constraint for operand 1.
1759         (*lea_4_zext): Ditto.
1760
1761 2011-11-11  David S. Miller  <davem@davemloft.net>
1762
1763         Revert
1764         2011-11-05  David S. Miller  <davem@davemloft.net>
1765
1766         * config/sparc/sparc.md (UNSPEC_SHORT_LOAD): New unspec.
1767         (zero-extend_v8qi_vis, zero_extend_v4hi_vis): New expanders.
1768         (*zero_extend_v8qi_<P:mode>_insn,
1769         *zero_extend_v4hi_<P:mode>_insn): New insns.
1770         * config/sparc/sparc.c (vector_init_move_words,
1771         vector_init_prepare_elts, sparc_expand_vector_init_vis2,
1772         sparc_expand_vector_init_vis1): New functions.
1773         (vector_init_bshuffle): Rewrite to handle more cases and make use
1774         of locs[] array prepared by vector_init_prepare_elts.
1775         (vector_init_fpmerge, vector_init_faligndata): Delete.
1776         (sparc_expand_vector_init): Rewrite using new infrastructure.
1777
1778 2011-11-11  Jakub Jelinek  <jakub@redhat.com>
1779
1780         * opts-common.c (generate_canonical_option): Free opt_text
1781         it it has been allocated here and not stored anywhere.
1782
1783         * tree-vect-slp.c (vect_free_slp_tree): Also free SLP_TREE_CHILDREN
1784         vector.
1785         (vect_create_new_slp_node): Don't allocate node before checking stmt
1786         type.
1787         (vect_free_oprnd_info): Remove FREE_DEF_STMTS argument, always
1788         free def_stmts vectors and additionally free oprnd_info.
1789         (vect_build_slp_tree): Adjust callers.  Call it even if
1790         stop_recursion.  If vect_create_new_slp_node or
1791         vect_build_slp_tree fails, properly handle freeing memory.
1792         If it succeeded, clear def_stmts in oprnd_info.
1793
1794 2011-11-11  Dimitrios Apostolou  <jimis@gmx.net>
1795
1796         * defaults.h (ASM_OUTPUT_LABEL, ASM_OUTPUT_INTERNAL_LABEL): Expand on
1797         multiple lines for readability.
1798         * output.h (fprint_whex, fprint_w, fprint_ul, sprint_ul): Declare.
1799         (ASM_OUTPUT_LABELREF): Call fputs instead of asm_fprintf.
1800         * dwarf2asm.c (dw2_assemble_integer, dw2_asm_output_data,
1801         dw2_asm_data_uleb128, dw2_asm_delta_uleb128,
1802         dw2_asm_delta_sleb128): Convert fprintf calls to the new functions.
1803         * dwarf2out.c (dwarf2out_source_line): Call fprint_ul instead of
1804         fprintf.
1805         * final.c (fprint_whex, fprint_w, fprint_ul, sprint_ul): New functions
1806         serving as fast replacements for fprintf integer to string conversions.
1807         (sprint_ul_rev): Internal helper for the above.
1808         (output_addr_const) <CONST_INT>: Don't use fprintf.
1809         * varasm.c: Fix some whitespace inconsistencies.
1810         (default_elf_asm_output_limited_string): New.
1811         (default_elf_asm_output_ascii): Likewise.
1812         (default_elf_internal_label): Likewise.
1813         * config/elfos.h (ASM_GENERATE_INTERNAL_LABEL): Use sprint_ul and
1814         stpcpy instead of sprintf.
1815         (TARGET_ASM_INTERNAL_LABEL): Define as default_elf_internal_label.
1816         (ELF_ASCII_ESCAPES, ELF_STRING_LIMIT): Rename from old ESCAPES and
1817         STRING_LIMIT macros.
1818         (ASM_OUTPUT_LIMITED_STRING, ASM_OUTPUT_ASCII): Call functions that
1819         provide the same functionality.
1820         * config/i386/i386.c (print_reg): Call fprint_ul instead of fprintf.
1821
1822 2011-11-10  Andrew MacLeod  <amacleod@redhat.com>
1823
1824         * doc/extend.texi: Document __atomic_test_and_set and __atomic_clear.
1825
1826 2011-11-10  Andrew MacLeod  <amacleod@redhat.com>
1827
1828         PR middle-end/51038
1829         * builtins.c (expand_builtin_atomic_clear): New.  Expand atomic_clear.
1830         (expand_builtin_atomic_test_and_set): New.  Expand atomic test_and_set.
1831         (expand_builtin): Add cases for test_and_set and clear.
1832         * sync-builtins.def (BUILT_IN_ATOMIC_TEST_AND_SET): New.
1833         (BUILT_IN_ATOMIC_CLEAR): New.
1834
1835 2011-11-10  Roberto Agostino Vitillo  <ravitillo@lbl.gov>
1836
1837         PR debug/50983
1838         * dwarf2out.c (set_cur_line_info_table): Restore the last is_stmt
1839         value in the current line table.
1840
1841 2011-11-10  Nathan Sidwell  <nathan@acm.org>
1842
1843         * gcov.c (struct function_info): Make src an index, not a pointer.
1844         (struct source_info): Remove index and next source fields.
1845         (fn_end): New static var.
1846         (sources_index): Remove.
1847         (sources): Now a pointer to an array, not a list.
1848         (n_sources, a_sources): New.
1849         (process_file): Adjust for changes to read_graph_file. Insert
1850         functions into source lists and check line numbers here.
1851         (generate_results): Only allocate lines for sources with
1852         contents.  Adjust for source array.
1853         (release_structures): Likewise.
1854         (find_source): Return source index, adjust for source array.
1855         (read_graph_file): Return function list.  Don't insert into source
1856         lists here.
1857         (read_count_file): Take list of functions.
1858         (solve_flow_graph): Reverse the arc lists here.
1859         (add_line_counts): Adjust for source array.
1860
1861 2011-11-10  Jakub Jelinek  <jakub@redhat.com>
1862
1863         PR middle-end/51077
1864         * tree-object-size.c (addr_object_size): Check TREE_CODE of
1865         MEM_REF's operand rather than code of the MEM_REF itself.
1866
1867 2011-11-10  Andrew MacLeod  <amacleod@redhat.com>
1868
1869         PR rtl-optimization/51040
1870         * optabs.c (expand_atomic_fetch_op): Patchup code for NAND should
1871         be AND followed by NOT.
1872         * builtins.c (expand_builtin_atomic_fetch_op): Patchup code for NAND
1873         should be AND followed by NOT.
1874
1875 2011-11-10  Jakub Jelinek  <jakub@redhat.com>
1876
1877         * vec.h (VEC_BASE): If base is at offset 0 in the structure,
1878         use &(P)->base even if P is NULL.
1879
1880         PR rtl-optimization/51023
1881         * combine.c (simplify_comparison) <case SIGN_EXTEND>: Don't use
1882         val_signbit_known_clear_p for signed comparison narrowing
1883         optimization.  Don't check for non-VOIDmode, use
1884         HWI_COMPUTABLE_MODE_P macro.
1885         <case ZERO_EXTEND>: Don't check for non-VOIDmode.
1886         Optimize even when const_op is equal to GET_MODE_MASK (mode),
1887         don't optimize if const_op is negative.
1888
1889 2011-11-10  Richard Guenther  <rguenther@suse.de>
1890
1891         PR tree-optimization/51042
1892         * tree-ssa-pre.c (phi_translate_1): Avoid recursing on
1893         self-referential expressions.  Refactor code to avoid duplication.
1894
1895 2011-11-10  Richard Guenther  <rguenther@suse.de>
1896
1897         PR tree-optimization/51070
1898         * tree-loop-distribution.c (generate_builtin): Do not replace
1899         the loop with a builtin if the partition contains statements which
1900         results are used outside of the loop.
1901         (pass_loop_distribution): Verify and collect.
1902
1903 2011-11-10  Richard Guenther  <rguenther@suse.de>
1904
1905         PR tree-optimization/51030
1906         * tree-ssa-phiopt.c (jump_function_from_stmt): New function.
1907         (value_replacement): Use it to handle trivial non-empty
1908         intermediate blocks.
1909
1910 2011-11-10  Richard Guenther  <rguenther@suse.de>
1911
1912         PR middle-end/51071
1913         * gimple.c (gimple_has_side_effects): Remove checking code
1914         that doesn't belong here.
1915
1916 2011-11-10  Ira Rosen  <ira.rosen@linaro.org>
1917
1918         PR tree-optimization/51058
1919         * tree-vect-slp.c (vect_get_constant_vectors): Handle CALL_EXPR.
1920
1921 2011-11-10  Jakub Jelinek  <jakub@redhat.com>
1922
1923         PR tree-optimization/51000
1924         * tree-vect-patterns.c (vect_recog_bool_pattern): If adding
1925         a pattern stmt for a bool store, adjust DR_STMT too.
1926         Don't handle bool conversions to single bit precision lhs.
1927         * tree-vect-stmts.c (vect_remove_stores): If next is a pattern
1928         stmt, remove its related stmt and free its stmt_vinfo.
1929         (free_stmt_vec_info): Free also pattern stmt's vinfo and
1930         pattern def stmt's vinfo.
1931         * tree-vect-loop.c (destroy_loop_vec_info): Don't try to
1932         free pattern stmt's vinfo here.
1933         (vect_transform_loop): When calling vect_remove_stores,
1934         do gsi_next first and don't call gsi_remove.  If not strided
1935         store, free stmt vinfo for gsi_stmt (si) rather than stmt.
1936
1937 2011-11-09  Jakub Jelinek  <jakub@redhat.com>
1938
1939         PR target/50911
1940         * config/i386/i386.c (expand_vec_perm_interleave2): If d->vmode is
1941         V4SImode, !TARGET_SSE2 and punpck[lh]* is needed, change dremap.vmode
1942         to V4SFmode.
1943
1944         * function.h (requires_stack_frame_p): New prototype.
1945         * function.c (requires_stack_frame_p): No longer static.
1946         * config/i386/i386.c (ix86_finalize_stack_realign_flags): If
1947         stack_realign_fp was just a conservative guess for a function
1948         which doesn't use sp/fp/argp at all, clear frame_pointer_needed
1949         and stack realignment.
1950
1951 2011-11-09  Paolo Carlini  <paolo.carlini@oracle.com>
1952
1953         PR preprocessor/51061
1954         * incpath.c (merge_include_chains): Make sure to not pass null
1955         pointers to free_path.
1956
1957 2011-11-09  Paolo Carlini  <paolo.carlini@oracle.com>
1958
1959         * doc/invoke.texi ([Option Summary, C++ Language Options]):
1960         Add -Wzero-as-null-pointer-constant.
1961
1962 2011-11-07  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
1963
1964         * config/arm/arm-cores.def: Add -mcpu=cortex-a7.
1965         * config/arm/arm-tables.opt: Regenerate.
1966         * config/arm/arm-tune.md: Likewise.
1967         * config/arm/bpabi.h (BE8_LINK_SPEC): Add Cortex A-7.
1968         * doc/invoke.texi: Document -mcpu=cortex-a7.
1969
1970 2011-11-09  Richard Guenther  <rguenther@suse.de>
1971
1972         Revert
1973         2011-11-09  Richard Guenther  <rguenther@suse.de>
1974
1975         * tree-cfg.c (verify_gimple_call): Verify that
1976         gimple_call_cannot_inline_p is returning a conservative
1977         correct result according to gimple_check_call_matching_types.
1978
1979 2011-11-09  Richard Guenther  <rguenther@suse.de>
1980
1981         PR tree-optimization/51039
1982         * tree-cfg.c (verify_gimple_call): Verify that
1983         gimple_call_cannot_inline_p is returning a conservative
1984         correct result according to gimple_check_call_matching_types.
1985         * ipa-inline-analysis.c (estimate_function_body_sizes): Remove
1986         code dealing with un-inlinablility.
1987         * gimple-streamer-in.c (input_gimple_stmt): Update the
1988         non-inlinable flag.
1989
1990 2011-11-09  Richard Guenther  <rguenther@suse.de>
1991
1992         PR tree-optimization/51039
1993         * tree-inline.c (setup_one_parameter): Always perform a
1994         valid gimple type change.
1995         (declare_return_variable): Likewise.
1996
1997 2011-11-09  Jakub Jelinek  <jakub@redhat.com>
1998
1999         * config/rs6000/vector.md (vcondv4sfv4si, vcondv4siv4sf,
2000         vconduv4sfv4si): New patterns.
2001         * config/rs6000/rs6000.c (rs6000_emit_vector_cond_expr): Handle
2002         different dest_mode from comparison mode.
2003
2004 2011-11-09  Richard Guenther  <rguenther@suse.de>
2005
2006         * gimple-fold.c (canonicalize_constructor_val): Mark
2007         address-taken variables addressable.
2008
2009 2011-11-09  Ira Rosen  <ira.rosen@linaro.org>
2010
2011         PR tree-optimization/51015
2012         * tree-vect-loop.c (vect_determine_vectorization_factor): Expect
2013         vectype to be set for pattern def stmts.
2014
2015 2011-11-09  Alan Modra  <amodra@gmail.com>
2016
2017         * function.c (bb_active_p): Delete.
2018         (dup_block_and_redirect, active_insn_between): New functions.
2019         (convert_jumps_to_returns, emit_return_for_exit): New functions,
2020         split out from..
2021         (thread_prologue_and_epilogue_insns): ..here.  Delete
2022         shadowing variables.  Don't do prologue register clobber tests
2023         when shrink wrapping already failed.  Delete all last_bb_active
2024         code.  Instead compute tail block candidates for duplicating
2025         exit path.  Remove these from antic set.  Duplicate tails when
2026         reached from both blocks needing a prologue/epilogue and
2027         blocks not needing such.
2028         * ifcvt.c (dead_or_predicable): Test both flag_shrink_wrap and
2029         HAVE_simple_return.
2030         * bb-reorder.c (get_uncond_jump_length): Make global.
2031         * bb-reorder.h (get_uncond_jump_length): Declare.
2032         * cfgrtl.c (rtl_create_basic_block): Comment typo fix.
2033         (rtl_split_edge): Likewise.  Warning fix.
2034         (rtl_duplicate_bb): New function.
2035         (rtl_cfg_hooks): Enable can_duplicate_block_p and duplicate_block.
2036         * Makefile.in (function.o): Update dependencies.
2037
2038 2011-11-08  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
2039             Georg-Johann Lay  <avr@gjlay.de>
2040
2041         * doc/tm.texi.in (MODE_CODE_BASE_REG_CLASS): Add address space
2042         argument.
2043         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
2044         * doc/tm.texi: Regenerate.
2045
2046         * config/cris/cris.h (MODE_CODE_BASE_REG_CLASS): Add address
2047         space argument.
2048         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
2049         * config/bfin/bfin.h (MODE_CODE_BASE_REG_CLASS): Likewise.
2050         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
2051         * config/avr/avr.h (MODE_CODE_BASE_REG_CLASS): Add address space
2052         argument.
2053         (REGNO_MODE_CODE_OK_FOR_BASE_P): Ditto.
2054         * config/avr/avr-protos.h (avr_mode_code_base_reg_class): Ditto.
2055         (avr_regno_mode_code_ok_for_base_p): Ditto.
2056         * config/avr/avr.c (avr_mode_code_base_reg_class): Ditto.
2057         (avr_regno_mode_code_ok_for_base_p): Ditto.
2058         (avr_reg_ok_for_addr_p): Pass AS down to
2059         avr_regno_mode_code_ok_for_base_p.
2060
2061         * addresses.h (base_reg_class): Add address space argument.
2062         Pass to MODE_CODE_BASE_REG_CLASS.
2063         (ok_for_base_p_1): Add address space argument.  Pass to
2064         REGNO_MODE_CODE_OK_FOR_BASE_P.
2065         (regno_ok_for_base_p): Add address space argument.  Pass to
2066         ok_for_base_p_1.
2067
2068         * regrename.c (scan_rtx_address): Add address space argument.
2069         Pass address space to regno_ok_for_base_p and base_reg_class.
2070         Update recursive calls.
2071         (scan_rtx): Pass address space to scan_rtx_address.
2072         (build_def_use): Likewise.
2073         * regcprop.c (replace_oldest_value_addr): Add address space
2074         argument.  Pass to regno_ok_for_base_p and base_reg_class.
2075         Update recursive calls.
2076         (replace_oldest_value_mem): Pass address space to
2077         replace_oldest_value_addr.
2078         (copyprop_hardreg_forward_1): Likewise.
2079
2080         * reload.c (find_reloads_address_1): Add address space argument.
2081         Pass address space to base_reg_class and regno_ok_for_base_p.
2082         Update recursive calls.
2083         (find_reloads_address): Pass address space to base_reg_class,
2084         regno_ok_for_base_p, and find_reloads_address_1.
2085         (find_reloads): Pass address space to base_reg_class.
2086         (find_reloads_subreg_address): Likewise.
2087
2088         * ira-costs.c (record_reg_classes): Update calls to base_reg_class.
2089         (ok_for_base_p_nonstrict): Add address space argument.  Pass to
2090         ok_for_base_p_1.
2091         (record_address_regs): Add address space argument.  Pass to
2092         base_reg_class and ok_for_base_p_nonstrict.  Update recursive calls.
2093         (record_operand_costs): Pass address space to record_address_regs.
2094         (scan_one_insn): Likewise.
2095
2096         * caller-save.c (init_caller_save): Update call to base_reg_class.
2097         * ira-conflicts.c (ira_build_conflicts): Likewise.
2098         * reload1.c (maybe_fix_stack_asms): Likewise.
2099
2100 2011-11-08  Michael Matz  <matz@suse.de>
2101
2102         * gengtype.c (write_field_root): Avoid out-of-scope access of newv.
2103
2104         * tree-stdarg.c (execute_optimize_stdarg): Accept clobbers.
2105
2106         * tree.h (TREE_CLOBBER_P): New macro.
2107         * gimple.h (gimple_clobber_p): New inline function.
2108         * gimplify.c (gimplify_bind_expr): Add clobbers for all variables
2109         that go out of scope and live in memory.
2110         * tree-ssa-operands.c (get_expr_operands): Transfer volatility also
2111         for constructors.
2112         * cfgexpand.c (decl_to_stack_part): New static variable.
2113         (add_stack_var): Allocate it, and remember mapping.
2114         (fini_vars_expansion): Deallocate it.
2115         (stack_var_conflict_p): Add early outs.
2116         (visit_op, visit_conflict, add_scope_conflicts_1,
2117         add_scope_conflicts): New static functions.
2118         (expand_used_vars_for_block): Don't call add_stack_var_conflict, tidy.
2119         (expand_used_vars): Add scope conflicts.
2120         (expand_gimple_stmt_1): Expand clobbers to nothing.
2121         (expand_debug_expr): Ditto.
2122
2123         * tree-pretty-print.c (dump_generic_node): Dump clobbers nicely.
2124         * tree-ssa-live.c (remove_unused_locals): Remove clobbers that
2125         refer to otherwise unused locals.
2126         * tree-sra.c (build_accesses_from_assign): Ignore clobbers.
2127         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Clobbers of
2128         SSA names aren't necessary.
2129         (propagate_necessity): Accept and ignore constructors on the rhs, tidy.
2130         * gimple.c (walk_gimple_op): Accept constructors like mem_rhs.
2131         * tree-ssa-structalias.c (find_func_aliases): Clobbers don't store
2132         any known value.
2133         * tree-ssa-sccvn.c (vn_reference_lookup_3): Ditto, in particular they
2134         don't zero-initialize something.
2135         * tree-ssa-phiopt.c (cond_if_else_store_replacement_1): Ignore
2136         clobber RHS, we don't want PHI nodes with those.
2137
2138 2011-11-08  Jakub Jelinek  <jakub@redhat.com>
2139
2140         * config/i386/i386.c (ix86_preferred_simd_mode): Even for TARGET_AVX
2141         if not TARGET_PREFER_AVX128 return 32-byte integer vectors.
2142
2143 2011-11-08  Richard Guenther  <rguenther@suse.de>
2144
2145         PR tree-optimization/51012
2146         * ipa-prop.c (update_indirect_edges_after_inlining): Fixup
2147         non-inlinable state.
2148         * cgraph.c (cgraph_make_edge_direct): Likewise.
2149
2150 2011-11-08  Eric Botcazou  <ebotcazou@adacore.com>
2151
2152         PR rtl-optimization/47698
2153         * ifcvt.c (noce_operand_ok): Move around comment.
2154
2155 2011-11-08  Richard Guenther  <rguenther@suse.de>
2156
2157         PR lto/50999
2158         * lto-opts.c (append_to_collect_gcc_options): Split out from...
2159         (lto_write_options): ... here.  Prepend frontend specific flags.
2160
2161 2011-11-08  Jakub Jelinek  <jakub@redhat.com>
2162
2163         * config/i386/sse.md (*avx_vperm2f128<mode>3_nozero): Emit mask
2164         0x12 and 0x20 as vinsert[fi]128 instead of vperm2[fi]128.
2165
2166         * tree-vect-stmts.c (vectorizable_call): Add SLP_NODE argument.
2167         Handle vectorization of SLP calls.
2168         (vect_analyze_stmt): Adjust caller, add call to it for SLP too.
2169         (vect_transform_stmt): Adjust vectorizable_call caller, remove
2170         assertion.
2171         * tree-vect-slp.c (vect_get_and_check_slp_defs): For calls start
2172         with op_idx 3.
2173         (vect_build_slp_tree): Allow CALL_EXPR.
2174
2175 2011-11-08  Richard Guenther  <rguenther@suse.de>
2176
2177         * gimple-fold.c (canonicalize_constructor_val): Make sure
2178         we have referenced vars setup before adding to them.
2179
2180 2011-11-07  Richard Henderson  <rth@redhat.com>
2181             Aldy Hernandez  <aldyh@redhat.com>
2182             Andrew MacLeod  <amacleod@redhat.com>
2183             Torvald Riegel  <triegel@redhat.com>
2184
2185         Merged from transactional-memory.
2186
2187         * gtm-builtins.def: New file.
2188         * trans-mem.c: New file.
2189         * trans-mem.h: New file.
2190
2191         * opts.c (finish_options): Error out when using -flto and -fgnu-tm.
2192
2193         * config/i386/i386.c: Define TARGET_VECTORIZE* transactional variants.
2194         (ix86_handle_tm_regparm_attribute, struct bdesc_tm,
2195         ix86_builtin_tm_load, ix86_builtin_tm_store,
2196         ix86_init_tm_builtins): New.
2197         (ix86_init_builtins): Initialize TM builtins.
2198         (struct ix86_attribute_table): Add "*tm regparm".
2199         * config/i386/i386-builtin-types.def (PV2SI): Define.
2200         (PCV2SI): Define.
2201         Define V2SI_FTYPE_PCV2SI.
2202         Define V4SF_FTYPE_PCV4SF.
2203         Define V8SF_FTYPE_PCV8SF.
2204         Define VOID_PV2SI_V2SI.
2205
2206         * doc/invoke.texi (C Dialect Options): Document -fgnu-tm and
2207         tm-max-aggregate-size.
2208         * doc/tm.texi.in: Add TARGET_VECTORIZE_BUILTIN_TM_LOAD and
2209         TARGET_VECTORIZE_BUILTIN_TM_STORE hooks.
2210         * doc/tm.texi: Regenerate.
2211
2212         * attribs.c (apply_tm_attr): New.
2213         (init_attributes): Allow '*' prefix for overrides.
2214         (register_attribute): Likewise.
2215         * builtin-attrs.def (ATTR_TM_TMPURE, ATTR_TM_REGPARM): New.
2216         (ATTR_TM_NOTHROW_LIST, ATTR_TM_TMPURE_NOTHROW_LIST,
2217         ATTR_TM_PURE_TMPURE_NOTHROW_LIST, ATTR_TM_NORETURN_NOTHROW_LIST,
2218         ATTR_TM_CONST_NOTHROW_LIST, ATTR_TMPURE_MALLOC_NOTHROW_LIST,
2219         ATTR_TMPURE_NOTHROW_LIST): New.
2220         * builtin-types.def (BT_FN_I[1248]_VPTR, BT_FN_FLOAT_VPTR,
2221         BT_FN_DOUBLE_VPTR, BT_FN_LDOUBLE_VPTR, BT_FN_VOID_VPTR_I[1248],
2222         BT_FN_VOID_VPTR_FLOAT, BT_FN_VOID_VPTR_DOUBLE,
2223         BT_FN_VOID_VPTR_LDOUBLE, BT_FN_VOID_VPTR_SIZE): New.
2224         * builtins.def: Include gtm-builtins.def. Add comments regarding
2225         transactional memory synchronization.
2226         (DEF_TM_BUILTIN): New.
2227         * c-parser.c (struct c_parser): Add in_transaction.
2228         (c_parser_transaction, c_parser_transaction_expression,
2229         c_parser_transaction_cancel, c_parser_transaction_attributes): New.
2230         (c_parser_attribute_any_word): Split out from c_parser_attributes.
2231         (c_parser_statement_after_labels): Handle RID_TRANSACTION*.
2232         (c_parser_unary_expression): Same.
2233         * c-tree.h (c_finish_transaction): Declare.
2234         * c-typeck.c (c_finish_transaction): New.
2235         (build_function_call_vec): Call tm_malloc_replacement.
2236         * calls.c (is_tm_builtin): New.
2237         (flags_from_decl_or_type): Add ECF_TM_BUILTIN and ECF_TM_PURE.
2238         * cfgbuild.c (make_edges): Add edges for REG_TM notes.
2239         * cfgexpand.c (expand_call_stmt): Call
2240         mark_transaction_restart_calls.
2241         (gimple_expand_cfg): Free the tm_restart map.
2242         (mark_transaction_restart_calls): New.
2243         * cfgrtl.c (purge_dead_edges): Look for REG_TM notes.
2244         * cgraph.c (dump_cgraph_node): Handle tm_clone.
2245         * cgraph.h (struct cgraph_node): Add tm_clone field.
2246         (decl_is_tm_clone): New.
2247         (struct cgraph_local_info): Add tm_may_enter_irr.
2248         (cgraph_copy_node_for_versioning): Declare.
2249         * cgraphunit.c (cgraph_copy_node_for_versioning): Export;
2250         copy analyzed from old version.
2251         * combine.c (distribute_notes): Handle REG_TM notes.
2252         * common.opt: Add -fgnu-tm.
2253         * crtstuff.c (__TMC_LIST__, __TMC_END__): New.
2254         (__do_global_dtors_aux): Deregister clone table.
2255         (frame_dummy): Register clone table.
2256         * emit-rtl.c (try_split): Handle REG_TM. Early return if no function
2257         body.
2258         * gimple-low.c (lower_stmt): Handle GIMPLE_EH_ELSE and
2259         GIMPLE_TRANSACTION.
2260         (gimple_stmt_may_fallthru): Handle GIMPLE_EH_ELSE.
2261         * gimple-pretty-print.c: Include trans-mem.h.
2262         (dump_gimple_fmt): Add %x.
2263         (dump_gimple_call): Dump arguments for calls to _ITM_beginTransaction.
2264         (dump_gimple_eh_else, dump_gimple_transaction): New.
2265         (dump_gimple_stmt): Handle GIMPLE_EH_ELSE and GIMPLE_TRANSACTION.
2266         * gimple.c (gimple_build_eh_else, gimple_build_transaction): New.
2267         (walk_gimple_seq): Honor removed_stmt. Document usage of removed_stmt
2268         field.
2269         (walk_gimple_op): Handle GIMPLE_TRANSACTION.
2270         (walk_gimple_stmt): Initialize and honor removed_stmt.
2271         Handle GIMPLE_EH_ELSE and GIMPLE_TRANSACTION.
2272         (gimple_copy): Handle GIMPLE_EH_ELSE and GIMPLE_TRANSACTION.
2273         * gimple.def (GIMPLE_TRANSACTION, GIMPLE_EH_ELSE): New.
2274         * gimple.h (struct gimple_statement_eh_else,
2275         gimple_statement_transaction, GTMA_*): New.
2276         (gimple_statement_d): Add gimple_statement_eh_else and
2277         gimple_transaction.
2278         (gimple_build_eh_else, gimple_build_transaction,
2279         gimple_fold_call, diagnose_tm_safe_errors): Declare.
2280         (get_call_expr_in): Remove prototype.
2281         (gimple_has_substatements): Add GIMPLE_EH_ELSE and GIMPLE_TRANSACTION.
2282         (gimple_eh_else_n_body, gimple_eh_else_e_body,
2283         gimple_eh_else_set_n_body, gimple_eh_else_set_e_body,
2284         gimple_transaction_body, gimple_transaction_label,
2285         gimple_transaction_label_ptr, gimple_transaction_subcode,
2286         gimple_transaction_set_body, gimple_transaction_set_label,
2287         gimple_transaction_set_subcode): New.
2288         (struct walk_stmt_info): Use BOOL_BITFIELD; add removed_stmt.
2289         * gimplify.c (create_tmp_var_name): Use clean_symbol_name.
2290         (voidify_wrapper_expr): Handle TRANSACTION_EXPR.
2291         (gimplify_transaction): New.
2292         (gimplify_expr): Handle TRANSACTION_EXPR.
2293         * gsstruct.def (GSS_EH_ELSE, GSS_TRANSACTION): New.
2294         * ipa-inline.c (can_inline_edge_p): Do not inline TM safe calling
2295         TM pure functions.
2296         * Makefile.in: Add trans-mem.o and dependencies.
2297         (BUILTINS_DEF): Add gtm-builtins.def.
2298         (gimple-pretty-print.o): Depend on TRANS_MEM_H.
2299         (GTFILES): Add trans-mem.c.
2300         * omp-low.c (WALK_SUBSTMTS): Add GIMPLE_TRANSACTION.
2301         * output.h (record_tm_clone_pair, finish_tm_clone_pairs,
2302         get_tm_clone_pair): Declare.
2303         * params.def (PARAM_TM_MAX_AGGREGATE_SIZE): New.
2304         * passes.c (init_optimization_passes): Place transactional memory
2305         passes.
2306         * print-tree.c (print_node): Dump tm-clone.
2307         * recog.c (peep2_attempt): Handle REG_TM.
2308         * reg-notes.def (TM): New.
2309         * rtlanal.c (alloc_reg_note): Handle REG_TM.
2310         * target.def (builtin_tm_load, builtin_tm_store): New.
2311         * targhooks.c (default_builtin_tm_load_store): New.
2312         * targhooks.h (default_builtin_tm_load_store): Declare.
2313         * timevar.def (TV_TRANS_MEM): New.
2314         * toplev.c (compile_file): Call finish_tm_clone_pairs.
2315         * tree-cfg.c (make_edges): Handle GIMPLE_TRANSACTION.
2316         (cleanup_dead_labels): Handle GIMPLE_TRANSACTION. Avoid unnecessary
2317         writes into the statements to update labels.
2318         (is_ctrl_altering_stmt): Add TM ending statements. Handle
2319         GIMPLE_TRANSACTION.
2320         (verify_gimple_transaction): New.
2321         (verify_gimple_stmt): Handle GIMPLE_TRANSACTION.
2322         (verify_gimple_in_seq_2): Handle GIMPLE_EH_ELSE and GIMPLE_TRANSACTION.
2323         (gimple_redirect_edge_and_branch): Handle TM_TRANSACTION.
2324         (dump_function_to_file): Display [tm-clone] if applicable.
2325         * tree-eh.c (struct_ptr_eq): Make inline and move to tree.h.
2326         (struct_ptr_hash): Same.
2327         (collect_finally_tree): Handle GIMPLE_EH_ELSE.
2328         (replace_goto_queue_1): Likewise.
2329         (get_eh_else): New.
2330         (honor_protect_cleanup_actions): Handle GIMPLE_EH_ELSE.
2331         (lower_try_finally_nofallthru): Likewise.
2332         (lower_try_finally_onedest): Likewise.
2333         (lower_try_finally_copy): Likewise.
2334         (lower_try_finally_switch): Likewise.
2335         (lower_try_finally): Likewise.
2336         (decide_copy_try_finally): Likewise.
2337         (lower_eh_constructs_2): Likewise.
2338         (refactor_eh_r): Likewise.
2339         * tree-flow.h (struct gimple_df): Add tm_restart field.
2340         Define tm_restart_node.
2341         * tree-inline.c (remap_gimple_stmt): Handle GIMPLE_TRANSACTION.
2342         (estimate_num_insns): Likewise.
2343         (init_inline_once): Init tm_cost.
2344         * tree-inline.h (struct eni_weights_d): Add tm_cost.
2345         * tree-pass.h (pass_diagnose_tm_blocks, pass_lower_tm, pass_tm_init,
2346         pass_tm_mark, pass_tm_memopt, pass_tm_edges, pass_ipa_tm): Declare.
2347         * tree-pretty-print.c (dump_generic_node): Handle TRANSACTION_EXPR.
2348         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Handle
2349         BUILT_IN_TM_MEMSET, BUILT_IN_TM_MEMCPY, BUILT_IN_TM_MEMMOVE.
2350         Add support for TM vector loads.  Add support for TM logging builtins.
2351         (call_may_clobber_ref_p_1): Add support for vector stores.
2352         * tree-ssa-structalias.c (find_func_aliases): Add support for TM
2353         vector stores and loads. Handle BUILT_IN_TM_MEMSET,
2354         BUILT_IN_TM_MEMCPY, BUILT_IN_TM_MEMMOVE.
2355         * tree.c (strip_invariant_refs): Moved from gimple.c to here.
2356         (local_define_builtin): Handle ECF_TM_PURE.
2357         (build_common_builtin_nodes): Set __builtin_eh_pointer to ECF_TM_PURE.
2358         * tree.def (TRANSACTION_EXPR): New.
2359         * tree.h (strip_invariant_refs): Moved from gimple.h to here.
2360         (TRANSACTION_EXPR_BODY, TRANSACTION_EXPR_CHECK,
2361         TRANSACTION_EXPR_OUTER, TRANSACTION_EXPR_RELAXED,
2362         BUILTIN_TM_LOAD_STORE_P, BUILTIN_TM_LOAD_P, BUILTIN_TM_STORE_P,
2363         CASE_BUILT_IN_TM_LOAD, CASE_BUILT_IN_TM_STORE): New.
2364         (ECF_TM_PURE, ECF_TM_BUILTIN): New.
2365         (struct tree_function_decl): Add tm_clone_flag.
2366         (struct_ptr_eq, struct_ptr_hash): New.
2367         (apply_tm_attr): Declare.
2368         (is_tm_safe_or_pure): New.
2369         (build_tm_abort_call, is_tm_safe, is_tm_pure,
2370         is_tm_may_cancel_outer, is_tm_ending_fndecl, record_tm_replacement,
2371         tm_malloc_replacement): Declare.
2372         * varasm.c (tm_clone_hash): New.
2373         (record_tm_clone_pair, finish_tm_clone_pairs, get_tm_clone_pair,
2374         dump_tm_clone_to_vec, dump_tm_clone_pairs, tm_alias_pair_cmp): New.
2375         (struct tm_alias_pair): New.  Declare VEC types for object.
2376
2377 2011-11-07  Richard Henderson  <rth@redhat.com>
2378
2379         * optabs.h (OTI_sync_compare_and_swap, OTI_sync_lock_test_and_set,
2380         OTI_sync_old_add, OTI_sync_old_sub, OTI_sync_old_ior,
2381         OTI_sync_old_and, OTI_sync_old_xor, OTI_sync_old_nand,
2382         OTI_sync_new_add, OTI_sync_new_sub, OTI_sync_new_ior,
2383         OTI_sync_new_and, OTI_sync_new_xor, OTI_sync_new_nand): Move and
2384         rename from the direct_optab_index enum.
2385         (sync_compare_and_swap_optab, sync_lock_test_and_set_optab,
2386         sync_old_add_optab, sync_old_sub_optab, sync_old_ior_optab,
2387         sync_old_and_optab, sync_old_xor_optab, sync_old_nand_optab,
2388         sync_new_add_optab, sync_new_sub_optab, sync_new_ior_optab,
2389         sync_new_and_optab, sync_new_xor_optab, sync_new_nand_optab): Read
2390         from the optab_table, not the direct_optab_table.
2391         (init_sync_libfuncs): Declare.
2392         (can_compare_and_swap_p): Update parameters.
2393         * optabs.c (init_sync_libfuncs_1, init_sync_libfuncs): New.
2394         (can_compare_and_swap_p): Add allow_libcall parameter; if true,
2395         test for the legacy compare-and-swap libcall.
2396         (expand_atomic_exchange): Use the legacy test-and-set libcall.
2397         (expand_atomic_compare_and_swap): Use the legacy CAS libcall.
2398         (struct atomic_op_functions): Update for optab type changes.
2399         (maybe_emit_op): Likewise.
2400         (expand_atomic_fetch_op): Use the legacy fetch-op libcalls.
2401         * builtins.c (fold_builtin_atomic_always_lock_free): Update call
2402         to can_compare_and_swap_p.
2403         * omp-low.c (expand_omp_atomic_fetch_op): Likewise.
2404         (expand_omp_atomic_pipeline): Likewise.
2405         * genopinit.c (optabs): Make sync_old_*_optab, sync_new_*_optab,
2406         sync_compare_and_swap_optab, sync_lock_test_and_set_optab regular
2407         optabs.
2408         * doc/md.texi (sync_compare_and_swap): Update docs for libcalls.
2409
2410 2011-11-07  Jakub Jelinek  <jakub@redhat.com>
2411
2412         * config/i386/i386-bultin-types.def (V8SI_FTYPE_V4DF_V4DF): Add.
2413         * config/i386/i386.c (enum ix86_builtins): Add
2414         IX86_BUILTIN_VEC_PACK_SFIX256.
2415         (bdesc_args): Add __builtin_ia32_vec_pack_sfix256.
2416         (ix86_expand_args_builtin): Handle V8SI_FTYPE_V4DF_V4DF.
2417         (ix86_builtin_vectorized_function): Also vectorize lrint using
2418         256-bit vectors for -mavx.
2419
2420 2011-11-07  Anatoly Sokolov  <aesok@post.ru>
2421
2422         * config/cris/constraints.md: New file.
2423         * config/cris/cris.h (REG_CLASS_FROM_LETTER, CONSTRAINT_LEN,
2424         CRIS_CONST_OK_FOR_LETTER_P, CONST_OK_FOR_CONSTRAINT_P,
2425         CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_MEMORY_CONSTRAINT,
2426         EXTRA_CONSTRAINT, EXTRA_CONSTRAINT_Q, EXTRA_CONSTRAINT_R,
2427         EXTRA_CONSTRAINT_T, EXTRA_CONSTRAINT_S, EXTRA_CONSTRAINT_U): Remove.
2428         * config/cris/cris.c: Incule "tm-constrs.h".
2429         (cris_print_operand): Use satisfies_constraint_O.
2430         (cris_normal_notice_update_cc, cris_rtx_costs): Use
2431         satisfies_constraint_I.
2432         (cris_address_cost): Use satisfies_constraint_L.
2433         * config/cris/cris.md: Include "constraints.md".
2434         (*mov_side<mode>, *mov_sidesisf, *mov_side<mode>_mem,
2435         *mov_sidesisf_mem, *clear_side<mode>, *ext_sideqihi,
2436         *ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>,
2437         *extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side,
2438         *extop<mode>si_swap_side): Use satisfies_constraint_N and
2439         satisfies_constraint_J.
2440         (moversideqi movemsideqi mover2side peephole2): Use
2441         satisfies_constraint_N and satisfies_constraint_J.
2442         (andu peephole2): Use satisfies_constraint_I and
2443         satisfies_constraint_O.
2444
2445 2011-11-07  Uros Bizjak  <ubizjak@gmail.com>
2446
2447         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2448         BUILT_IN_IRINT, BUILT_IN_IRINTF, BUILT_IN_LLRINT and BUILT_IN_LLRINTF.
2449
2450 2011-11-07  Andrew MacLeod  <amacleod@redhat.com>
2451
2452         * optabs.c (get_atomic_op_for_code): Fill in optab table at runtime so
2453         SWITCHABLE_TARGET can change the values during compilation.
2454         (expand_atomic_fetch_op): Handle parameter change ripples for
2455         get_atomic_op_for_code call.
2456
2457 2011-11-07  Andrew MacLeod  <amacleod@redhat.com>
2458
2459         * doc/extend.texi: Docuemnt behaviour change for __atomic_exchange and
2460         __atomic_store.
2461         * optabs.c (expand_atomic_exchange): Expand to __sync_lock_test_and_set
2462         only when originated from that builtin.
2463         (expand_atomic_store): Expand to __sync_lock_release when originated
2464         from that builtin.
2465         * builtins.c (expand_builtin_sync_lock_test_and_set): Add flag that
2466         expand_atomic_exchange call originated from here.
2467         (expand_builtin_sync_lock_release): Add flag that expand_atomic_store
2468         call originated from here.
2469         (expand_builtin_atomic_exchange): Add origination flag.
2470         (expand_builtin_atomic_store): Add origination flag.
2471         * expr.h (expand_atomic_exchange, expand_atomic_store): Add boolean
2472         parameters to indicate implementation fall back options.
2473
2474 2011-11-07  Georg-Johann Lay  <avr@gjlay.de>
2475
2476         * config/avr/avr.c (output_reload_in_const): Can handle CONSTANT_P
2477         now, not only CONST_INT and CONST_DOUBLE.
2478         (output_movqi): Use output_reload_in_const.
2479         (output_reload_inhi): Ditto.
2480         (output_reload_insisf): Move assertion to output_reload_in_const.
2481         (avr_out_reload_inpsi): Ditto.
2482
2483 2011-11-07  Nathan Sidwell  <nathan@acm.org>
2484
2485         * gcov.c (object_summary): Replace with ...
2486         (object_runs): ... this.
2487         (process_file): Remove functions with no data.
2488         (generate_results): Ignore files with no lines.
2489         (release_function): New helper, broken out of ...
2490         (release_structures): ... here.  Use it.
2491         (read_count_file): Adjust for new data file format.
2492         (output_lines): Use object_runs.
2493         * gcov-io.h (GCOV_TAG_OBJECT_SUMMARY): Obsolete.
2494         (struct gcov_ctr_info): Move definition.
2495         (struct gcov_fn_info): Add key field, use gcov_ctr_info for
2496         trailing array.
2497         (struct gcov_info): Add merge function array, remove mask and
2498         counts.  Trailing array is array of pointers to function info.
2499         * coverage.c (struct function_list): Replace counter numbers with
2500         counter arrays.  Add fndecl field.  GTYify.
2501         (counts_entry): Remove chain workspace.
2502         (functions_head): GTYify.
2503         (prg_n_ctrs): Remove.
2504         (fn_v_ctrs): New.
2505         (tree_ctr_tables): Remove.
2506         (read_counts_file): Cope with blank entries and expect program
2507         summaries before functions.  Don't warn on missing entries.
2508         (coverage_counter_alloc): Allocate individual function arrays.
2509         (tree_coverage_counter_ref, tree_coverage_counter_addr): Adjust
2510         for individual function arrays.
2511         (coverage_end_function): GTYify function list object. Finalize
2512         function's counter arrays.
2513         (build_var): New.  Create a counter-related variable with
2514         appropriate linkage.
2515         (build_fn_info_type): Adjust for new runtime structure.
2516         (build_fn_info_value): Rename to ...
2517         (build_fn_info): ... here.  Build new format data.
2518         (build_ctr_info_type, build_ctr_info_value): Remove.
2519         (build_info_type): New. Build new format data structure.
2520         (build_info): Adjust for new format data.
2521         (create_coverage): Likewise.
2522         * gcov-dump.c (tag_function): Recognize placeholders.
2523
2524 2011-11-07  Georg-Johann Lay  <avr@gjlay.de>
2525
2526         * config/avr/constraints.md (Cm2): New constraint for int -2.
2527         * config/avr/avr.md (addqi3): Use it. New alternatives for +/-2.
2528         (*negqihi2): New insn.
2529
2530 2011-11-07  H.J. Lu  <hongjiu.lu@intel.com>
2531
2532         * dwarf2cfi.c (dwarf2out_frame_debug_expr): Check
2533         HARD_FRAME_POINTER_REGNUM instead of hard_frame_pointer_rtx in Rule 18.
2534
2535 2011-11-07  Jakub Jelinek  <jakub@redhat.com>
2536
2537         * config/i386/i386.c (ix86_expand_builtin): If gather mask
2538         argument is known to have all high bits set, pass pc_rtx as
2539         second argument to the expander instead of op0.
2540         * config/i386/sse.md (*avx2_gathersi<mode>_2,
2541         *avx2_gatherdi<mode>_2): New patterns.
2542         * config/i386/avx2intrin.h (_mm256_i32gather_pd,
2543         _mm256_i64gather_pd, _mm256_i32gather_ps): Set mask using
2544         _mm256_cmp_pd with zero vector arguments and _CMP_EQ_OQ instead of
2545         _mm256_set1_pd.
2546
2547         PR tree-optimization/50789
2548         * tree-vect-stmts.c (process_use): Add force argument, avoid
2549         exist_non_indexing_operands_for_use_p check if true.
2550         (vect_mark_stmts_to_be_vectorized): Adjust callers.  Handle
2551         STMT_VINFO_GATHER_P.
2552         (gen_perm_mask): New function.
2553         (perm_mask_for_reverse): Use it.
2554         (reverse_vec_element): Rename to...
2555         (permute_vec_elements): ... this.  Add Y and MASK_VEC arguments,
2556         generalize for any permutations.
2557         (vectorizable_load): Adjust caller.  Handle STMT_VINFO_GATHER_P.
2558         * target.def (TARGET_VECTORIZE_BUILTIN_GATHER): New hook.
2559         * doc/tm.texi.in (TARGET_VECTORIZE_BUILTIN_GATHER): Document it.
2560         * doc/tm.texi: Regenerate.
2561         * tree-data-ref.c (initialize_data_dependence_relation,
2562         compute_self_dependence): No longer static.
2563         * tree-data-ref.h (initialize_data_dependence_relation,
2564         compute_self_dependence): New prototypes.
2565         * tree-vect-data-refs.c (vect_check_gather): New function.
2566         (vect_analyze_data_refs): Detect possible gather load data refs.
2567         * tree-vectorizer.h (struct _stmt_vec_info): Add gather_p field.
2568         (STMT_VINFO_GATHER_P): Define.
2569         (vect_check_gather): New prototype.
2570         * config/i386/i386-builtin-types.def: Add types for alternate
2571         gather builtins.
2572         * config/i386/sse.md (AVXMODE48P_DI): Remove.
2573         (VEC_GATHER_MODE): Rename mode_attr to...
2574         (VEC_GATHER_IDXSI): ... this.
2575         (VEC_GATHER_IDXDI, VEC_GATHER_SRCDI): New mode_attrs.
2576         (avx2_gathersi<mode>, *avx2_gathersi<mode>): Use <VEC_GATHER_IDXSI>
2577         instead of <VEC_GATHER_MODE>.
2578         (avx2_gatherdi<mode>): Use <VEC_GATHER_IDXDI> instead of
2579         <AVXMODE48P_DI> and <VEC_GATHER_SRCDI> instead of VEC_GATHER_MODE
2580         on src and mask operands.
2581         (*avx2_gatherdi<mode>): Likewise.  Use VEC_GATHER_MODE iterator
2582         instead of AVXMODE48P_DI.
2583         (avx2_gatherdi<mode>256, *avx2_gatherdi<mode>256): Removed.
2584         * config/i386/i386.c (enum ix86_builtins): Add
2585         IX86_BUILTIN_GATHERALTSIV4DF, IX86_BUILTIN_GATHERALTDIV8SF,
2586         IX86_BUILTIN_GATHERALTSIV4DI and IX86_BUILTIN_GATHERALTDIV8SI.
2587         (ix86_init_mmx_sse_builtins): Create those builtins.
2588         (ix86_expand_builtin): Handle those builtins and adjust expansions
2589         of other gather builtins.
2590         (ix86_vectorize_builtin_gather): New function.
2591         (TARGET_VECTORIZE_BUILTIN_GATHER): Define.
2592
2593 2011-11-07  Uros Bizjak  <ubizjak@gmail.com>
2594
2595         * config/i386/f16cintrin.h: Remove extra _X86INTRIN_H_INCLUDED check.
2596
2597 2011-11-07  Tristan Gingold  <gingold@adacore.com>
2598
2599         * config.gcc (*-*-*vms*): Set c_target_objs, cxx_target_objs.
2600         * config/vms/t-vms: Add vms-c.o rule.
2601         * config/vms/vms-c.c: New file.
2602         * config/vms/vms-protos.h (vms_c_register_pragma): New prototype.
2603         * config/vms/vms.h (REGISTER_TARGET_PRAGMAS): Define.
2604
2605 2011-11-07  Tristan Gingold  <gingold@adacore.com>
2606
2607         * config/alpha/vms.h (TARGET_OBJECT_SUFFIX,
2608         TARGET_EXECUTABLE_SUFFIX, TARGET_OS_CPP_BUILTINS,
2609         TARGET_ABI_OPEN_VMS, LONG_TYPE_SIZE, ADA_LONG_TYPE_SIZE,
2610         POINTER_SIZE, POINTERS_EXTEND_UNSIGNED): Move to config/vms/vms.h
2611         (SUBTARGET_OS_CPP_BUILTINS): Define.
2612         (TARGET_DEFAULT): Tune according to POINTER_SIZE.
2613         (MASK_RETURN_ADDR): Define in 64 bit mode.
2614         * config/ia64/vms.h: Likewise.
2615         * config/vms/vms.h: New file.
2616         * config/vms/vms64.h: New file.
2617         * config/alpha/vms64.h: Removed.
2618         * config/ia64/vms64.h: Removed.
2619         * config.gcc (alpha64-dec-*vms*, alpha*-dec-*vms*, ia64-hp-*vms*):
2620         Adjust for above change.
2621
2622 2011-11-07  Enkovich Ilya  <ilya.enkovich@intel.com>
2623
2624         PR target/50962
2625         * config/i386/i386-protos.h (ix86_use_lea_for_mov): New.
2626         * config/i386/i386.c (ix86_use_lea_for_mov): Likewise.
2627         * config/i386/i386.md (movsi_internal): Emit lea if profitable.
2628         (movdi_internal_rex64): Likewise.
2629
2630 2011-11-07  Sergey Ostanevich  <sergos.gnu@gmail.com>
2631
2632         PR rtl-optimization/47698
2633         * ifcvt.c (noce_operand_ok): Return false for mems with side effects.
2634
2635 2011-11-07  Tristan Gingold  <gingold@adacore.com>
2636
2637         * common/config/alpha/alpha-common.c (alpha_option_init_struct):
2638         New function.
2639         (TARGET_OPTION_INIT_STRUCT): Define.
2640         * config/alpha/alpha.c (TARGET_MIN_ANCHOR_OFFSET)
2641         (TARGET_MAX_ANCHOR_OFFSET)
2642         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Redefine.
2643
2644 2011-11-06  Quentin Neill  <quentin.neill@amd.com>
2645
2646         Fix r180999, update ChangeLog
2647         * config.gcc: Add f16cintrin.h.
2648         * config/i386/f16cintrin.h: Add missing endif.
2649
2650 2011-11-06  Sebastian Huber  <sebastian.huber@embedded-brains.de>
2651
2652         * config.gcc (arm*-*-rtemseabi*): New target.
2653         * config/arm/rtems-eabi.h: New.
2654         * config/arm/t-rtems-eabi: New.
2655
2656 2011-11-06  David S. Miller  <davem@davemloft.net>
2657
2658         * config/sparc/sparc.md (UNSPEC_SHORT_LOAD): Delete.
2659         (zero_extend_v8qi_vis, zero_extend_v4hi_vis,
2660         *zero_extend_v8qi_<P:mode>_insn,
2661         *zero_extend_v4hi_<P:mode>_insn): Express using vec_merge
2662         and vec_duplicate instead of using an UNSPEC.
2663
2664 2011-11-07  Alan Modra  <amodra@gmail.com>
2665
2666         PR target/30282
2667         * config/rs6000/rs6000.c (rs6000_emit_stack_reset): Always emit
2668         blockage for ABI_V4.
2669
2670 2011-11-06  Dave Korn  <dave.korn.cygwin@gmail.com>
2671
2672         * config/i386/cygwin.h (LIBGCJ_SONAME): Updated to match recent
2673         libgcj version bump.
2674         * config/i386/mingw32.h (LIBGCJ_SONAME): Likewise.
2675
2676 2011-11-06  Eric Botcazou  <ebotcazou@adacore.com>
2677
2678         * gcse.c: Adjust outdated comments throughout.
2679         (struct mem_conflict_info): New structure.
2680         (mems_conflict_for_gcse_p): Use it to communicate with caller.
2681         (load_killed_in_block_p): Pass it to note_stores.
2682         (hash_expr): Remove superfluous line break.
2683         (hash_scan_set): Rename PAT parameter into SET.
2684         (hash_scan_insn): Reorder cases.
2685         (canon_list_insert): Fix long line.
2686         (edge_list): Delete.
2687         (prune_expressions): Rename E local variable into EXPR.
2688         (compute_pre_data): Return struct edge_list * object.
2689         (pre_expr_reaches_here_p_work): Fix formatting.
2690         (process_insert_insn): Move around comment.
2691         (pre_edge_insert): Fix long line.
2692         (pre_insert_copies): Likewise.
2693         (gcse_emit_move_after): Swap SRC and DEST parameters.
2694         (pre_delete): Adjust call to gcse_emit_move_after.
2695         (pre_gcse): Take struct edge_list * parameter.  Fix long line.
2696         (one_pre_gcse_pass): Use flag_gcse_lm condition for all routines.
2697         Use a local list of edges.
2698         (hoist_code): Fix long line.  Adjust call to gcse_emit_move_after.
2699         (pre_ldst_expr_hash): Fix long line.
2700         (free_ldst_mems): Rename into...
2701         (free_ld_motion_mems): ...this.
2702         (first_ls_expr): Delete.
2703         (next_ls_expr): Likewise.
2704         (print_ldst_list): Do not use above two functions.
2705         (simple_mem): Adjust interface.
2706         (compute_ld_motion_mems): Fix formatting.
2707         (update_ld_motion_stores): Reuse local variable.
2708
2709 2011-11-06  Joseph Myers  <joseph@codesourcery.com>
2710
2711         * c-decl.c (shadow_tag_warned, grokdeclarator): Handle _Alignas
2712         specifiers.
2713         (build_null_declspecs): Initialize align_log and alignas_p fields.
2714         (declspecs_add_alignas): New.
2715         * c-parser.c (c_token_starts_declspecs): Handle RID_ALIGNAS.
2716         (c_parser_declspecs): Handle _Alignas specifiers.
2717         (c_parser_alignas_specifier): New.
2718         (c_parser_alignof_expression): Diagnose alignof use for non-C1X.
2719         Diagnose _Alignof (expression).
2720         * c-tree.h (struct c_declspecs): Add align_log and alignas_p fields.
2721         (declspecs_add_alignas): Declare.
2722         * ginclude/stddef.h (max_align_t): Define for C1X and C++11.
2723         * ginclude/stdalign.h: New.
2724         * Makefile.in (USER_H): Add stdalign.h.
2725
2726 2011-11-06  Joern Rennecke  <joern.rennecke@embecosm.com>
2727
2728         * regset.h (fixed_reg_set_regset): Declare.
2729         * dse.c: Include regset.h .
2730         (struct insn_info): Add member fixed_regs_live.
2731         (note_add_store_info): New typedef.
2732         (note_add_store): New function.
2733         (emit_inc_dec_insn_before): Expect arg to be of type insn_info_t.
2734         Use gen_add3_insn / gen_move_insn.
2735         Check new insn for unwanted clobbers before emitting it.
2736         (check_for_inc_dec): Rename to...
2737         (check_for_inc_dec_1:) ... this.  Return bool.  Take insn_info
2738         parameter.  Changed all callers in file.
2739         (check_for_inc_dec, copy_fixed_regs): New functions.
2740         (scan_insn): Set fixed_regs_live field of insn_info.
2741         * rtl.h (check_for_inc_dec): Update prototype.
2742         * postreload.c (reload_cse_simplify): Take new signature of
2743         check_ind_dec into account.
2744         * reginfo.c (fixed_reg_set_regset): New variable.
2745         (init_reg_sets_1): Initialize it.
2746
2747 2011-11-06  Jakub Jelinek  <jakub@redhat.com>
2748
2749         * tree-cfg.c (gimple_can_merge_blocks_p): For -O0 don't remove
2750         any user labels.
2751
2752 2011-11-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2753
2754         * config/pa/pa.c (pa_hpux_init_libfuncs): Rename to pa_init_libfuncs.
2755         Remove dependence of declaration and target define on definition of
2756         HPUX_LONG_DOUBLE_LIBRARY.  Update implementation.
2757
2758 2011-11-06  Andrew Macleod  <amacleod@redhat.com>
2759             Richard Henderson  <rth@redhat.com>
2760             Aldy Hernandez  <aldyh@redhat.com>
2761
2762         Merged from cxx-mem-model.
2763
2764         * cppbuiltin.c (define__GNUC__): Define __ATOMIC memory models
2765         * coretypes.h (enum memmodel): New.  enumerated memory model type.
2766         * Makefile.in (cppbuiltin.o) Add missing dependency on $(TREE_H)
2767         * genopinit,c (optabs): Add atomic direct optab handlers.
2768         * sync-builtins.def (BUILT_IN_ATOMIC_*): New builtins.
2769         * builtin-types.def (BT_CONST_VOLATILE_PTR,
2770         BT_FN_I{1,2,4,8,16}_CONST_VPTR_INT, BT_FN_VOID_VPTR_INT,
2771         BT_FN_BOOL_VPTR_INT, BT_FN_BOOL_SIZE_CONST_VPTR,
2772         BT_FN_I{1,2,4,8,16}_VPTR_I{1,2,4,8,16}_INT,
2773         BT_FN_VOID_VPTR_I{1,2,4,8,16}_INT, BT_FN_VOID_SIZE_VPTR_PTR_INT,
2774         BT_FN_VOID_SIZE_CONST_VPTR_PTR_INT, BT_FN_VOID_SIZE_VPTR_PTR_PTR_INT,
2775         BT_FN_BOOL_VPTR_PTR_I{1,2,4,8,16}_BOOL_INT_INT): New builtin types.
2776         * expr.h (expand_atomic_*): Add prototypes.
2777         (expand_{bool,val}_compare_and_swap): Remove prototypes.
2778         * c-typeck.c (build_function_call_vec): Don't reprocess __atomic
2779         parameters.
2780         * common.opt (Winvalid-memory-model): New warning flag.
2781         (finline-atomics): New. Flag to disable atomic inlining.
2782         * params.h (ALLOW_LOAD_DATA_RACES): New.
2783         (ALLOW_PACKED_LOAD_DATA_RACES): New.
2784         (ALLOW_PACKED_STORE_DATA_RACES): New.
2785         * params.def (PARAM_ALLOW_LOAD_DATA_RACES): New.
2786         (PARAM_ALLOW_PACKED_LOAD_DATA_RACES): New.
2787         (PARAM_ALLOW_PACKED_STORE_DATA_RACES): New.
2788         * builtins.c (is_builtin_name): Handle __atomic.
2789         (get_memmodel): New.  Extract memory model.
2790         (expand_expr_force_mode): New. Factor out common code for ensuring an
2791         integer argument is in the proper mode.
2792         (expand_builtin_sync_operation): Remove ignore param.  Always call
2793         expand_atomic_fetch_op instead of the old expanders.
2794         (expand_builtin_compare_and_swap,
2795         expand_builtin_sync_lock_test_and_set): Use expand_expr_force_mode,
2796         call atomic expanders instead of sync expanders.
2797         (expand_builtin_sync_lock_release): Call atomic_store expander.
2798         (expand_builtin_atomic_compare_exchange, expand_builtin_atomic_load,
2799         expand_builtin_atomic_store, expand_builtin_atomic_fetch_op): New.
2800         (expand_builtin_atomic_exchange): New.
2801         (fold_builtin_atomic_always_lock_free,
2802         expand_builtin_atomic_always_lock_free,
2803         fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
2804         New.
2805         (expand_builtin_mem_thread_fence, expand_builtin_atomic_thread_fence,
2806         expand_builtin_atomic_signal_fence): New.
2807         (expand_builtin_mem_signal_fence): New.
2808         (expand_builtin): Add cases for BUILT_IN_ATOMIC_*.
2809         (fold_builtin_2): Add cases for BUILT_IN_ATOMIC_{IS,ALWAYS}_LOCK_FREE.
2810         * optabs.h (DOI_atomic_*): Define new atomics.
2811         (atomic_*_optab): Define.
2812         (can_compare_and_swap_p, expand_atomic_compare_and_swap): New
2813         prototypes.
2814         * optabs.c (expand_sync_operation, expand_sync_fetch_operation): Remove.
2815         (expand_sync_lock_test_and_set): Remove.
2816         (expand_atomic_load, expand_atomic_store): New.
2817         (expand_atomic_exchange): New.
2818         (expand_atomic_compare_and_swap): New.  Implements
2819         atomic_compare_exchange via compare and swap.
2820         (struct atomic_op_functions): Opcode table struct for fetch ops.
2821         (get_atomic_op_for_code): New.  Return an opcode table entry.
2822         (maybe_emit_op): New.  Try to emit a fetch op.
2823         (expand_atomic_fetch_op): New.
2824         (expand_val_compare_and_swap_1): Remove.
2825         (expand_val_compare_and_swap, expand_bool_compare_and_swap): Remove.
2826         (expand_atomic_compare_and_swap): Rename from
2827         expand_atomic_compare_exchange.  Rewrite to return both success and
2828         oldval return values; expand via both atomic and sync optabs.
2829         (can_compare_and_swap_p): New.
2830         (expand_compare_and_swap_loop): Use expand_atomic_compare_and_swap.
2831         (maybe_gen_insn): Handle 7 and 8 operands.
2832         * omp-low.c (expand_omp_atomic_fetch_op): Don't test individual
2833         fetch_op optabs, only test can_compare_and_swap_p.  Use __atomic
2834         builtins instead of __sync builtins.
2835         (expand_omp_atomic_pipeline): Use can_compare_and_swap_p.
2836         * doc/extend.texi: Document __atomic built-in functions.
2837         * doc/invoke.texi: Document data race parameters.
2838         * doc/md.texi: Document atomic patterns.
2839         * config/i386/i386.md (UNSPEC_MOVA): New.
2840         (UNSPECV_CMPXCHG): Split into ...
2841         (UNSPECV_CMPXCHG_1, UNSPECV_CMPXCHG_2,
2842         UNSPECV_CMPXCHG_3, UNSPECV_CMPXCHG_4): New.
2843         * config/i386/sync.md (ATOMIC): New mode iterator.
2844         (atomic_load<ATOMIC>, atomic_store<ATOMIC>): New.
2845         (atomic_loaddi_fpu, atomic_storedi_fpu, movdi_via_fpu): New.
2846         (mem_thread_fence): Rename from memory_barrier.
2847         Handle the added memory model parameter.
2848         (mfence_nosse): Rename from memory_barrier_nosse.
2849         (sync_compare_and_swap<CASMODE>): Split into ...
2850         (atomic_compare_and_swap<SWI124>): this and ...
2851         (atomic_compare_and_swap<CASMODE>): this.  Handle the new parameters.
2852         (atomic_compare_and_swap_single<SWI>): Rename from
2853         sync_compare_and_swap<SWI>; rewrite to use split unspecs.
2854         (atomic_compare_and_swap_double<DCASMODE>): Rename from
2855         sync_double_compare_and_swap<DCASMODE>; rewrite to use split unspecs.
2856         (*atomic_compare_and_swap_doubledi_pic): Rename from
2857         sync_double_compare_and_swapdi_pic; rewrite to use split unspecs.
2858         (atomic_fetch_add<SWI>): Rename from sync_old_add<SWI>; add memory
2859         model parameter.
2860         (*atomic_fetch_add_cmp<SWI>): Similarly.
2861         (atomic_add<SWI>, atomic<any_logic><SWI>): Similarly.
2862         (atomic_sub<SWI>): Similarly.  Use x86_maybe_negate_const_int.
2863         (sync_lock_test_and_set<SWI>): Merge with ...
2864         (atomic_exchange<SWI>): ... this.
2865
2866 2011-11-6  Richard Guenther  <rguenther@suse.de>
2867
2868         * ipa-prop.c (ipa_modify_call_arguments): Re-compute inlinable flag.
2869
2870 2011-11-06  Ira Rosen  <ira.rosen@linaro.org>
2871
2872         * tree-vectorizer.h (vectorizable_condition): Add argument.
2873         * tree-vect-loop.c (vectorizable_reduction): Fail for condition
2874         in SLP.  Update calls to vectorizable_condition.
2875         * tree-vect-stmts.c (vect_is_simple_cond): Add basic block info to
2876         the arguments.  Pass it to vect_is_simple_use_1.
2877         (vectorizable_condition): Add slp_node to the arguments.  Support
2878         vectorization of basic blocks.  Fail for reduction in SLP.  Update
2879         calls to vect_is_simple_cond and vect_is_simple_use.  Support SLP:
2880         call vect_get_slp_defs to get vector operands.
2881         (vect_analyze_stmt): Update calls to vectorizable_condition.
2882         (vect_transform_stmt): Likewise.
2883         * tree-vect-slp.c (vect_create_new_slp_node): Handle COND_EXPR.
2884         (vect_get_and_check_slp_defs): Handle COND_EXPR.  Allow pattern
2885         def stmts.
2886         (vect_build_slp_tree): Handle COND_EXPR.
2887         (vect_analyze_slp_instance): Push pattern statements to root node.
2888         (vect_get_constant_vectors): Fix comments.  Handle COND_EXPR.
2889
2890 2011-11-05  David S. Miller  <davem@davemloft.net>
2891
2892         * config/sparc/sparc.md (UNSPEC_SHORT_LOAD): New unspec.
2893         (zero-extend_v8qi_vis, zero_extend_v4hi_vis): New expanders.
2894         (*zero_extend_v8qi_<P:mode>_insn,
2895         *zero_extend_v4hi_<P:mode>_insn): New insns.
2896         * config/sparc/sparc.c (vector_init_move_words,
2897         vector_init_prepare_elts, sparc_expand_vector_init_vis2,
2898         sparc_expand_vector_init_vis1): New functions.
2899         (vector_init_bshuffle): Rewrite to handle more cases and make use
2900         of locs[] array prepared by vector_init_prepare_elts.
2901         (vector_init_fpmerge, vector_init_faligndata): Delete.
2902         (sparc_expand_vector_init): Rewrite using new infrastructure.
2903
2904 2011-11-05  Joern Rennecke  <joern.rennecke@embecosm.com>
2905
2906         * config.gcc (epiphany-*-*): New architecture.
2907         (epiphany-*-elf): New configuration.
2908         * config/epiphany, common/config/epiphany : New directories.
2909         * doc/extend.texi (disinterrupt attribute): Add Epiphany.
2910         (interrupt attribute): Add Epiphany.
2911         (long_call, short_call attribute): Add Epiphany.
2912         * doc/invoke.texi (Options): Add Epiphany options.
2913         * doc/md.texi (Machine Constraints): Add Epiphany constraints.
2914         * doc/install.texi (Options specification):
2915         Add --with-stack-offset=@var{num} description.
2916         (host/target specific issues): Add epiphany-*-elf.
2917         * doc/contrib.texi (Contributors): Mention Epiphany port.
2918
2919 2011-11-05  Jakub Jelinek  <jakub@redhat.com>
2920
2921         PR tree-optimization/50693
2922         * tree-cfg.c (gimple_can_merge_blocks_p): Allow merging with
2923         non-forced user labels.
2924         (gimple_merge_blocks): Turn non-forced user labels into
2925         debug bind stmt with the label as first operand and reset value.
2926         (gimple_duplicate_bb): Don't duplicate label debug stmts.
2927         * dwarf2out.c (gen_label_die): Handle NOTE_INSN_DELETED_DEBUG_LABEL.
2928         * final.c (final_scan_insn): Likewise.
2929         (rest_of_clean_state): Don't dump NOTE_INSN_DELETED_DEBUG_LABEL.
2930         * var-tracking.c (debug_label_num): New variable.
2931         (delete_debug_insns): Don't delete DEBUG_INSNs for LABEL_DECLs,
2932         instead turn them into NOTE_INSN_DELETED_DEBUG_LABEL notes.
2933         * cfglayout.c (skip_insns_after_block, duplicate_insn_chain): Handle
2934         NOTE_INSN_DELETED_DEBUG_LABEL.
2935         (duplicate_insn_chain): Don't duplicate LABEL_DECL DEBUG_INSNs.
2936         * insn-notes.def (DELETED_DEBUG_LABEL): New note kind.
2937         * print-rtl.c (print_rtx): Handle NOTE_INSN_DELETED_DEBUG_LABEL.
2938         * gengtype.c (adjust_field_rtx_def): Likewise.
2939         * config/i386/i386.c (ix86_output_function_epilogue): For MachO
2940         clear CODE_LABEL_NUMBER of NOTE_INSN_DELETED_DEBUG_LABEL
2941         if their are at the end of function and nop hasn't been emitted.
2942         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Likewise.
2943
2944 2011-11-05  Georg-Johann Lay  <avr@gjlay.de>
2945
2946         PR rtl-optimization/50448
2947         * cprop.c (try_replace_reg): Also try to replace uses of FROM that
2948         appear in SET_DEST.
2949
2950 2011-11-05  Peter Dufault  <dufault@hda.com>,
2951             Sebastian Huber  <sebastian.huber@embedded-brains.de>
2952
2953         * config/rs6000/rtems.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
2954         Extend rs6000_spe handling.
2955
2956 2011-11-05  Ralf Cors├ępius  <ralf.corsepius@rtems.org>
2957
2958         * config/rs6000/t-rtems: Add -mcpu=8540/-mfloat-gprs=double multilib.
2959         Remove -mcpu=601 multilib.
2960         Remove -Dmpc8260 multilib.
2961         * config/rs6000/rtems.h: Allow --float-gprs=... to override grps
2962         on E500 targets.
2963
2964 2011-11-05  Quentin Neill  <quentin.neill@amd.com>
2965
2966         Piledriver f16cintrin.h fix.
2967         * config/i386/f16cintrin.h: Contents moved from immintrin.h.
2968         * config/i386/immintrin.h: Include f16cintrin.h.
2969         * config.gcc (i[34567]86-*-*, x86_64-*-*): Add f16cintrin.h.
2970
2971
2972 2011-11-04  Eric Botcazou  <ebotcazou@adacore.com>
2973
2974         PR c++/50608
2975         * c-parser.c (c_parser_postfix_expression) <RID_OFFSETOF>: Adjust call
2976         to fold_offsetof.
2977         * c-typeck.c (build_unary_op) <ADDR_EXPR>: Call fold_offsetof_1.
2978
2979 2011-11-04  Alan Modra  <amodra@gmail.com>
2980
2981         * reload1.c (gen_reload): Don't use REGNO on SUBREGs.
2982         * print-rtl.c (print_rtx): Don't segfault on negative regno.
2983
2984 2011-11-04  David S. Miller  <davem@davemloft.net>
2985
2986         PR target/49965
2987         * config/sparc/sparc.c (sparc_expand_conditional_move): Handle the
2988         fact that sparc_emit_float_lib_cmp modifies the comparison in
2989         operands[1].
2990
2991 2011-11-04  Ralf Cors├ępius  <ralf.corsepius@rtems.org>
2992
2993         * config/lm32/t-rtems: New.
2994         * config.gcc (lm32-*-rtems*): Add t-rtems.
2995
2996 2011-11-04  Eric Botcazou  <ebotcazou@adacore.com>
2997
2998         PR target/50979
2999         * config/sparc/sparc.h (ASM_CPU_SPEC): Pass -Av8 if -mcpu=v8.
3000
3001 2011-11-04  Jiangning Liu  <jiangning.liu@arm.com>
3002
3003         PR rtl-optimization/38644
3004         * config/arm/arm.c (thumb1_expand_epilogue): Add memory barrier
3005         for epilogue having stack adjustment.
3006
3007 2011-11-04  Georg-Johann Lay  <avr@gjlay.de>
3008
3009         PR target/50931
3010         * config/avr/avr-modes.def: New file defining PSImode.
3011         * config/avr/avr-c.c (__INT24_MAX__, __INT24_MIN__,
3012         __UINT24_MAX__): New built-in defines.
3013         * config/avr/avr.md (adjust_len): Add tstpsi, mov24,  reload_in24,
3014         ashlpsi, ashrpsi, lshrpsi.
3015         (QISI, QIDI, HISI, HIDI, MPUSH, rotx, rotsmode): Add PSI.
3016         (MOVMODE): New mode iterator.
3017         (movpsi): New expander.
3018         (movqi, movhi, movsi, movsf, movpsi): Write as one using MOVMODE.
3019         (*reload_inpsi, *movpsi): New insns.
3020         (*reload_inpsi): New RTL peephole.
3021         (addpsi3, *addpsi3_zero_extend.qi, *addpsi3_zero_extend.hi,
3022         *addpsi3_sign_extend.hi): New insns.
3023         (subpsi3, *subpsi3_zero_extend.qi, *subpsi3_zero_extend.hi,
3024         *subpsi3_sign_extend.hi): New insns.
3025         (divmodpsi4, udivmodpsi4): New define insn-and-split.
3026         (*divmodpsi4_call, *udivmodpsi4_call): New insns.
3027         (andpsi3, iorpsi3, xorpsi3): New insns.
3028         (*rotlpsi2.1, *rotlpsi2.23): New insns.
3029         (*rotw<mode>): Insn condition only allow even-sized modes.
3030         (*rotb<mode>): Insn condition allows odd-sized modes.
3031         (ashlpsi3, ashrpsi3, lshrpsi3, *addpsi3.lt0): New insns.
3032         (negpsi2, one_cmplpsi2): New insns.
3033         (extendqipsi2, extendhipsi2, extendpsisi2): New insns.
3034         (zero_extendqipsi2, zero_extendhipsi2, zero_extendpsisi2): New
3035         insn-and-splits.
3036         (*cmppsi, *negated_tstpsi, *reversed_tstpsi): New insns.
3037         (cbranchpsi4): New expander.
3038         * config/avr/constraints.md (Ca3, Co3, Cx3): New constraints.
3039         * config/avr/avr-protos.h (avr_out_tstpsi, avr_out_movpsi,
3040         avr_out_ashlpsi3, avr_out_ashrpsi3, avr_out_lshrpsi3,
3041         avr_out_reload_inpsi): New prototypes.
3042
3043         * config/avr/avr.c (TARGET_SCALAR_MODE_SUPPORTED_P): Define to...
3044         (avr_scalar_mode_supported_p): ...this new static function.
3045         (avr_asm_len): Always return "".
3046         (avr_out_load_psi, avr_out_store_psi): New static functions.
3047         (avr_out_movpsi, avr_out_reload_inpsi): New functions.
3048         (avr_out_tstpsi): New function.
3049         (avr_out_ashlpsi3, avr_out_ashrpsi3, avr_out_lshrpsi3): New functions.
3050         (avr_out_plus_1, output_reload_in_const): Handle 3-byte types.
3051         (avr_simplify_comparison_p): Ditto.
3052         (adjust_insn_length): Handle ADJUST_LEN_RELOAD_IN24,
3053         ADJUST_LEN_MOV24, ADJUST_LEN_TSTPSI, ADJUST_LEN_ASHLPSI,
3054         ADJUST_LEN_ASHRPSI, ADJUST_LEN_LSHRPSI.
3055         (avr_rtx_costs_1): Report PSI costs.
3056         (avr_libcall_value): Handle odd-sized parameters.
3057         (avr_init_builtin_int24): New static function to define built-in
3058         24-bit types __int24 and __uint24.
3059         (avr_init_builtins): Use it.
3060
3061 2011-11-04  Thomas Doerfler <thomas.doerfler@embedded-brains.de>
3062
3063         PR target/50989
3064         * config/arm/rtems-elf.h, config/arm/t-rtems: Add optional
3065         support for VFP floating point model.
3066
3067 2011-11-04  Tristan Gingold  <gingold@adacore.com>
3068
3069         * config/alpha/vms.h (ASM_OUTPUT_DEF): Do not switch section.
3070
3071 2011-11-04  Ira Rosen  <ira.rosen@linaro.org>
3072
3073         Unrevert:
3074         2011-10-24  Ira Rosen  <ira.rosen@linaro.org>
3075
3076         PR tree-optimization/50730
3077         * tree-vect-data-refs.c (vect_analyze_data_refs): Stop basic block
3078         analysis if encountered unsupported data-ref.
3079
3080 2011-11-04  Jakub Jelinek  <jakub@redhat.com>
3081
3082         * config/i386/i386.c (ix86_expand_vector_convert_uns_vsivsf): New
3083         function.
3084         * config/i386/i386-protos.h (ix86_expand_vector_convert_uns_vsivsf):
3085         New prototype.
3086         * config/i386/sse.md (floatuns<sseintvecmodelower><mode>2): Use it.
3087         For floatunsv8siv8sf2 require TARGET_AVX2.
3088
3089         * config/i386/i386.c (ix86_expand_adjust_ufix_to_sfix_si): Add
3090         XORP argument.  Subtract 0x1p31 instead of 0x1p32.  Use normal
3091         signalling comparison instead of non-signalling.  Store into
3092         *XORP pseudo holding 0x80000000 integers if 0x1p31 has been
3093         subtracted and 0 otherwise.
3094         * config/i386/i386-protos.h (ix86_expand_adjust_ufix_to_sfix_si):
3095         Adjust prototype.
3096         * config/i386/sse.md (fixuns_trunc<mode><sseintvecmodelower>2): Enable
3097         already for TARGET_SSE2.  Xor in vector initialized by
3098         ix86_expand_adjust_ufix_to_sfix_si at the end.
3099         (vec_pack_ufix_trunc_<mode>): Likewise.
3100
3101         * tree-vect-stmts.c (vectorizable_conversion): Rewritten to handle
3102         not just FLOAT_EXPR and FIX_TRUNC_EXPR, but also CONVERT_EXPR_CODE_P,
3103         WIDEN_MULT_EXPR and WIDEN_LSHIFT_EXPR to handle what
3104         vectorizable_type_demotion and vectorizable_type_promotion did.
3105         Additionally handle FLOAT_EXPR and FIX_TRUNC_EXPR where the integer
3106         is {,un}signed {char,short}.
3107         (vect_create_vectorized_demotion_stmts): Fix comment typo.  For
3108         recursive calls unconditionally use VEC_PACK_TRUNC_EXPR.
3109         Push vec_dest back to the vec_dsts vector at the end.
3110         (vect_create_vectorized_promotion_stmts): Don't recurse, do just
3111         one step.  Removed multi_step_cvt, vec_dsts, slp_node and
3112         prev_stmt_info arguments, add vec_dest argument.  Push always
3113         into vec_tmp, not just when multi_step_cvt != 0, replace *vec_oprdn0
3114         with vec_tmp at the end after freeing old *vec_oprnd0 vector.
3115         (vectorizable_type_demotion, vectorizable_type_promotion): Removed.
3116         (vect_analyze_stmt): Don't call vectorizable_type_demotion and
3117         vectorizable_type_promotion.  Call vectorizable_conversion even
3118         for SLP bb vectorization.
3119         (vect_transform_stmt): Call vectorizable_conversion instead of
3120         vectorizable_type_demotion and vectorizable_type_promotion.
3121         (supportable_widening_operation): Clear *multi_step_cvt first,
3122         simplify c1/c2 computation, free *interm_types vector on failure.
3123         (supportable_narrowing_operation): Clear *multi_step_cvt first,
3124         free *interm_types vector on failure, handle multi-step
3125         FIX_TRUNC_EXPR.
3126
3127 2011-11-04  Tristan Gingold  <gingold@adacore.com>
3128
3129         * config/alpha/alpha.c (alpha_write_linkage): Remove fundecl
3130         argument.  Conditionally generate crash debug info.  Adjust
3131         for alpha_funcs_tree removal.
3132         (machine_function): Add links field.
3133         (alpha_start_function): Conditionally generate crash debug info.
3134         (alpha_end_function): Adjust call to alpha_write_linkage.
3135         (alpha_funcs): Remove.
3136         (links_kind): Remove.
3137         (alpha_links): Remove num, target and lkind field.  Add func field.
3138         (alpha_links_tree): Remove.
3139         (alpha_funcs_tree): Remove.
3140         (alpha_need_linkage): Remove.
3141         (alpha_use_linkage): Change prototype.  Adjust.
3142         (alpha_write_one_linkage): Use ASM_OUTPUT_INTERNAL_LABEL.
3143         Use SYMBOL_REF_EXTERNAL_P and SYMBOL_REF_LOCAL_P macro.
3144         * config/alpha/alpha-protos.h (alpha_use_linkage): Update.
3145         (alpha_need_linkage): Remove.
3146         * config/alpha/alpha.md: Update calls to alpha_use_linkage.
3147         Adjust calls to alpha_need_linkage.
3148
3149 2011-11-03  Uros Bizjak  <ubizjak@gmail.com>
3150
3151         * sched-vis.c (print_value): Handle STRICT_LOW_PART.
3152
3153 2011-11-03  Uros Bizjak  <ubizjak@gmail.com>
3154
3155         * config/i386/i386.md (lround<X87MODEF:mode><SWI248x:mode>2,
3156         rint<mode>2, floor<mode>2, lfloor<MODEF:mode><SWI48:mode>2,
3157         btrunc<mode>2, lwp_lwpval<mode>3): Use operands[N] instead of operandN.
3158
3159 2011-11-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3160
3161         PR target/50978
3162         * config/arm/t-bpabi: New file.
3163         * config.gcc (arm*-*-linux*): Add arm/t-bpabi to tmake_file for
3164         arm*-*-linux-*eabi.
3165         (arm*-*-uclinux*): Add arm/t-bpabi to tmake_file for
3166         arm*-*-uclinux*eabi.
3167         (arm*-*-eabi*, arm*-*-symbianelf*): Add arm/t-bpabi to tmake_file
3168         for arm*-*-eabi*.
3169
3170 2011-11-03  Michael Matz  <matz@suse.de>
3171
3172         PR bootstrap/50857
3173         * configure.ac: Check for -fno-exceptions -fno-rtti.
3174         * configure: Regenerate.
3175         * Makefile.in (NOEXCEPTION_FLAGS): New flag.
3176         (ALL_CXXFLAGS): Use it.
3177
3178 2011-11-03  Uros Bizjak  <ubizjak@gmail.com>
3179
3180         * config/i386/i386.md: Use {} for multi-line preparation statements.
3181
3182 2011-11-03  Eric Botcazou  <ebotcazou@adacore.com>
3183
3184         * config/sparc/sparc.md (movtf_insn_sp32_no_fpu): Consolidate into...
3185         (movtf_insn_sp32): ...this.
3186         (movtf_insn_sp64_no_fpu): Consolidate into...
3187         (movtf_insn_sp64): ...this.
3188         (movtf_insn_sp64_hq): Do not test TARGET_FPU.
3189         * config/sparc/sparc.c (sparc_legitimate_address_p): Likewise.
3190
3191 2011-11-03  Tristan Gingold  <gingold@adacore.com>
3192
3193         * config/vms/vms.c (vms_patch_builtins): Fix typo.
3194
3195 2011-11-03  Richard Guenther  <rguenther@suse.de>
3196
3197         PR lto/44965
3198         * lto-opts.c: Re-implement.
3199         * lto-streamer.h (lto_register_user_option): Remove.
3200         (lto_read_file_options): Likewise.
3201         (lto_reissue_options): Likewise.
3202         (lto_clear_user_options): Likewise.
3203         (lto_clear_file_options): Likewise.
3204         * opts-global.c (post_handling_callback): Remove.
3205         (set_default_handlers): Do not set post_handling_callback.
3206         (decode_options): Remove LTO specific code.
3207         * lto-wrapper.c (merge_and_complain): New function.
3208         (run_gcc): Read all input file options and
3209         prepend a merged set before the linker driver options.
3210         * gcc.c (driver_post_handling_callback): Remove.
3211         (set_option_handlers): Do not set post_handling_callback.
3212         * opts-common.c (handle_option): Do not call post_handling_callback.
3213         * opts.h (struct cl_option_handlers): Remove post_handling_callback.
3214
3215 2011-11-03  Richard Guenther  <rguenther@suse.de>
3216
3217         * collect2.c (main): Guard object_nbr variable with TARGET_AIX_VERSION.
3218
3219 2011-11-03  Martin Jambor  <mjambor@suse.cz>
3220
3221         * ipa-prop.c (type_change_info): New fields offset, object,
3222         known_current_type and multiple_types_encountered.
3223         (extr_type_from_vtbl_ptr_store): New function.
3224         (check_stmt_for_type_change): Use it, set multiple_types_encountered if
3225         the result is different from the previous one.
3226         (detect_type_change): Renamed to detect_type_change_1. New parameter
3227         comp_type.  Set up new fields in tci, build known type jump
3228         functions if the new type can be identified.
3229         (detect_type_change): New function.
3230         * tree.h (DECL_CONTEXT): Comment new use.
3231
3232 2011-11-03  Richard Guenther  <rguenther@suse.de>
3233
3234         PR lto/48217
3235         * lto-wrapper.c (get_options_from_collect_gcc_options): Properly
3236         decode an encoded literal '.
3237
3238 2011-11-03  Tristan Gingold  <gingold@adacore.com>
3239
3240         * collect2.c (main): Add support of -f (response file) on AIX.
3241
3242 2011-11-03  Ira Rosen  <ira.rosen@linaro.org>
3243
3244         PR tree-optimization/50912
3245         * tree-vectorizer.h (slp_void_p): New.
3246         (struct _slp_tree): Replace left and right with children.  Update
3247         documentation.
3248         (struct _slp_oprnd_info): New.
3249         (vect_get_vec_defs): Declare.
3250         (vect_get_slp_defs): Update arguments.
3251         * tree-vect-loop.c (vect_create_epilog_for_reduction): Call
3252         vect_get_vec_defs instead of vect_get_slp_defs.
3253         (vectorizable_reduction): Likewise.
3254         * tree-vect-stmts.c (vect_get_vec_defs): Remove static, add argument.
3255         Update call to vect_get_slp_defs.
3256         (vectorizable_conversion): Update call to vect_get_vec_defs.
3257         (vectorizable_assignment, vectorizable_shift,
3258         vectorizable_operation): Likewise.
3259         (vectorizable_type_demotion): Call vect_get_vec_defs instead of
3260         vect_get_slp_defs.
3261         (vectorizable_type_promotion, vectorizable_store): Likewise.
3262         (vect_analyze_stmt): Fix typo.
3263         * tree-vect-slp.c (vect_free_slp_tree): Update SLP tree traversal.
3264         (vect_print_slp_tree, vect_mark_slp_stmts,
3265         vect_mark_slp_stmts_relevant, vect_slp_rearrange_stmts,
3266         vect_detect_hybrid_slp_stmts, vect_slp_analyze_node_operations,
3267         vect_schedule_slp_instance): Likewise.
3268         (vect_create_new_slp_node): New.
3269         (vect_create_oprnd_info, vect_free_oprnd_info): Likewise.
3270         (vect_get_and_check_slp_defs): Pass information about defs using
3271         oprnds_info, allow any number of operands.
3272         (vect_build_slp_tree): Likewise.  Update calls to
3273         vect_get_and_check_slp_defs.  Fix comments.
3274         (vect_analyze_slp_instance): Move node creation to
3275         vect_create_new_slp_node.
3276         (vect_get_slp_defs): Allow any number of operands.
3277
3278 2011-11-02  Peter Bergner  <bergner@vnet.ibm.com>
3279             Iain Sandoe  <iains@gcc.gnu.org>
3280
3281         * config/rs6000/rs6000.c (USE_HIDDEN_LINKONCE): New define.
3282         (get_ppc476_thunk_name): Use it.
3283         (rs6000_code_end): Likewise.
3284         (macho_branch_islands): Fix typo.
3285
3286 2011-11-02  Paolo Carlini  <paolo.carlini@oracle.com>
3287             Jason Merrill  <jason@redhat.com>
3288
3289         PR c++/50810
3290         * configure.ac: Add -Wno-narrowing to warning options.
3291         * doc/invoke.texi ([-Wnarrowing], [-Wc++0x-compat]): Update.
3292
3293 2011-11-02  Eric Botcazou  <ebotcazou@adacore.com>
3294
3295         PR target/50945
3296         * config/sparc/sparc.md (movsf_insn): Reindent constraints.
3297         (movdf_insn_sp32): Likewise.  Remove redundant G constraint.
3298         (movdf_insn_sp64): Likewise.
3299         (DFmode splitter): Do not test TARGET_FPU.
3300         (movtf_insn_sp32): Reindent constraints.
3301         (movtf_insn_sp32_no_fpu): Likewise.
3302         (movtf_insn_sp64): Likewise.
3303         (movtf_insn_sp64_hq): Likewise.
3304         (movtf_insn_sp64_no_fpu): Likewise.
3305
3306 2011-11-02  Paolo Carlini  <paolo.carlini@oracle.com>
3307
3308         PR c++/50956
3309         * builtins.c (fold_builtin_memchr): Fix cast.
3310
3311 2011-11-02  Teresa Johnson  <tejohnson@google.com>
3312
3313         * config/i386/predicates.md (promotable_binary_operator): Add minus
3314         to the list of promotable operators.
3315
3316 2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3317
3318         * gthr-single.h, gthr.h: Move to ../libgcc.
3319         * gthr-aix.h: Move to ../libgcc/config/rs6000.
3320         * gthr-dce.h: Move to ../libgcc/config/pa.
3321         * gthr-lynx.h: Move to ../libgcc/config.
3322         * gthr-mipssde.h: Move to ../libgcc/config/mips.
3323         * gthr-posix.h: Move to ../libgcc/config.
3324         * gthr-rtems.h: Likewise.
3325         * gthr-tpf.h: Move to ../libgcc/config/s390.
3326         * gthr-vxworks.h: Move to ../libgcc/config.
3327         * gthr-win32.h: Move to ../libgcc/config/i386.
3328         * configure.ac (gthread_flags): Remove
3329         (gthr-default.h): Don't create.
3330         (thread_file): Don't substitute.
3331         * configure: Regenerate.
3332         * Makefile.in (GCC_THREAD_FILE): Remove.
3333         (GTHREAD_FLAGS): Remove.
3334         (libgcc.mvars): Remove GTHREAD_FLAGS.
3335         * config/t-vxworks (EXTRA_HEADERS): Remove.
3336
3337 2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3338             Paolo Bonzini  <bonzini@gnu.org>
3339
3340         * configure.ac (libgcc_tm_file_list, libgcc_tm_include_list): Remove.
3341         * configure: Regenerate.
3342         * Makefile.in (libgcc_tm_file_list, libgcc_tm_include_list): Remove.
3343         (TM_H): Remove libgcc_tm.h, $(libgcc_tm_file_list).
3344         (libgcc_tm.h, cs-libgcc_tm.h): Remove.
3345         (clean): Remove libgcc_tm.h
3346         * mkconfig.sh: Don't include libgcc_tm.h in tm.h.
3347         * config.gcc (libgcc_tm_file): Remove.
3348         (arm*-*-linux*): Remove libgcc_tm_file for arm*-*-linux-*eabi.
3349         (arm*-*-uclinux*): Remove libgcc_tm_file for arm*-*-uclinux*eabi.
3350         (arm*-*-eabi*, arm*-*-symbianelf*): Remove libgcc_tm_file.
3351         (avr-*-rtems*): Likewise.
3352         (avr-*-*): Likewise.
3353         (frv-*-elf): Likewise.
3354         (frv-*-*linux*): Likewise.
3355         (h8300-*-rtems*): Likewise.
3356         (h8300-*-elf*): Likewise.
3357         (i[34567]86-*-darwin*): Likewise.
3358         (x86_64-*-darwin*): Likewise.
3359         (rx-*-elf*): Likewise.
3360         (tic6x-*-elf): Likewise.
3361         (tic6x-*-uclinux): Likewise.
3362         (i[34567]86-*-linux*, x86_64-*-linux*): Likewise.
3363
3364 2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3365
3366         * Makefile.in (LIBGCC2_DEBUG_CFLAGS LIBGCC2_CFLAGS)
3367         (LIBGCC2_INCLUDES, TARGET_LIBGCC2_CFLAGS, LIB2FUNCS_EXTRA)
3368         (LIB2FUNCS_STATIC_EXTRA, LIB2FUNCS_EXCLUDE, T, T_TARGET)
3369         (INCLUDES_FOR_TARGET): Remove.
3370         (LIBGCC2_CFLAGS): Don't export.
3371         (LIB2FUNCS_ST, LIB2_DIVMOD_FUNCS, LIB2ADD, LIB2ADD_ST, srcdirify):
3372         Remove.
3373         (libgcc-support): Remove $(LIB2ADD), $(LIB2ADD_ST) dependencies.
3374         (libgcc.mvars): Likewise.
3375         Don't emit LIB2FUNCS_ST, LIB2FUNCS_EXCLUDE, LIB2ADD, LIB2ADD_ST,
3376         LIB2_SIDITI_CONV_FUNCS, LIB2_DIVMOD_FUNCS, LIBGCC2_CFLAGS,
3377         TARGET_LIBGCC2_CFLAGS.
3378         Emit GTHREAD_FLAGS.
3379         * libgcc2.c, libgcc2.h, gbl-ctors.h, longlong.h: Move to ../libgcc.
3380         * config/darwin-64.c: Move to ../libgcc/config.
3381         * config/divmod.c, config/floatunsidf.c, config/floatunsisf.c,
3382         config/floatunsitf.c, config/floatunsixf.c, config/udivmod.c,
3383         config/udivmodsi4.c: Move to ../libgcc/config.
3384         * config/gthr-posix.c: Move to ../libgcc/config/alpha.
3385         * config/memcmp.c, config/memcpy.c, config/memmove.c,
3386         config/memset.c: Move to ../libgcc/config.
3387         * config/t-darwin (TARGET_LIBGCC2_CFLAGS): Remove.
3388         * config/t-freebsd: Remove.
3389         * config/t-freebsd-thread: Move to ../libgcc/config.