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