OSDN Git Service

3581f4b593be74b964c729169d08c33c96f1865a
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2012-01-25  Richard Henderson  <rth@redhat.com>
2
3         * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
4         mem inputs.
5
6 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
7
8         * optabs.c (gen_atomic_test_and_set): Use each argument.
9
10 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
11
12         * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
13         (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
14         (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
15         (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
16         (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
17         TARGET_PAIRED_SINGLE_FLOAT.
18
19 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
20
21         * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
22         (in_struct, return_val): Remove MEM documentation.
23         * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
24         (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
25         (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
26         and MEM_SCALAR.
27         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
28         * cfgexpand.c (add_alias_set_conflicts): Likewise.
29         * expr.c (store_field): Likewise.
30         * function.c (assign_stack_temp_for_type): Likewise.
31         * ifcvt.c (noce_try_cmove_arith): Likewise.
32         * reload1.c (reload): Likewise.
33         * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
34         (alpha_set_memflags): Likewise.
35         * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.
36
37 2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>
38
39         * rtl.h (true_dependence, canon_true_dependence): Remove varies
40         parameter.
41         * alias.c (fixed_scalar_and_varying_struct_p): Delete.
42         (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
43         (true_dependence_1, true_dependence, canon_true_dependence): Remove
44         varies parameter.
45         * cselib.c (cselib_rtx_varies_p): Delete.
46         (cselib_invalidate_mem): Update call to canon_true_dependence.
47         * dse.c (record_store, check_mem_read_rtx): Likewise.
48         (scan_reads_nospill): Likewise.
49         * cse.c (check_dependence): Likewise.
50         (cse_rtx_varies_p): Delete.
51         * expr.c (safe_from_p): Update call to true_dependence.
52         * ira.c (validate_equiv_mem_from_store): Likewise.
53         (memref_referenced_p): Likewise.
54         * postreload-gcse.c (find_mem_conflicts): Likewise.
55         * sched-deps.c (sched_analyze_2): Likewise.
56         * store-motion.c (load_kills_store): Likewise.
57         * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
58         * gcse.c (mems_conflict_for_gcse_p): Likewise.
59         (compute_transp): Update call to canon_true_dependence.
60
61 2012-01-25  Richard Henderson  <rth@redhat.com>
62
63         * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
64         (maybe_emit_atomic_test_and_set): New.
65         (expand_sync_lock_test_and_set): Use it.
66         (expand_atomic_test_and_set): Likewise.
67         * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
68         the implementation; clarify implementation defined details.
69         * doc/md.texi (atomic_test_and_set): Document.
70
71 2012-01-25  Richard Henderson  <rth@redhat.com>
72
73         * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.
74
75 2012-01-25  Richard Henderson  <rth@redhat.com>
76
77         PR target/51968
78         * config/arm/arm.c (neon_split_vcombine): Emit deleted note
79         to effect no-op split.
80
81 2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
82             Patrick Marlier  <patrick.marlier@gmail.com>
83
84         * trans-mem.c (requires_barrier): Do not instrument thread local
85         variables and emit save/restore for them.
86
87 2012-01-24  Jason Merrill  <jason@redhat.com>
88
89         PR c++/51812
90         * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
91         output static aliases.
92
93 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
94
95         PR driver/47249
96         * common.opt (-pie, -shared, pie, shared): Change from Common to
97         Driver.
98         * gcc.c (display_help): Display help for -pie and -shared.
99
100 2012-01-24  Georg-Johann Lay  <avr@gjlay.de>
101
102         PR target/49868
103         * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
104         Remove note on size/offset limitation.
105         (AVR Variable Attributes): Add example how to read data located
106         with progmem.  Refer to named address spaces.
107         * doc/invoke.texi (AVR Options): Fix typo.
108
109 2012-01-24  Richard Guenther  <rguenther@suse.de>
110
111         Forward-port to trunk
112         2010-09-21  Jakub Jelinek  <jakub@redhat.com>
113
114         PR middle-end/45678
115         * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
116         op0 isn't sufficiently aligned and there is movmisalignM
117         insn for mode, use it to load op0 into a temporary register.
118
119 2012-01-24  Jakub Jelinek  <jakub@redhat.com>
120
121         PR target/51957
122         * target.def (const_not_ok_for_debug_p): New hook.
123         * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
124         documentation.
125         * doc/tm.texi: Regenerated.
126         * dwarf2out.c (const_ok_for_output_1): If
127         targetm.const_not_ok_for_debug_p returns true, fail.
128         * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
129         function.
130         (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.
131
132 2012-01-23  Kai Tietz  <ktietz@redhat.com>
133
134         PR target/51900
135         * config/i386/predicates.md (symbolic_operand): Allow
136         UNSPEC_PCREL as PIC expression for lea.
137         * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
138         * config/i386/i386.c (ix86_delegitimize_address): Handle
139         UNSPEC_PCREL for none-MEM, too.
140
141 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
142
143         * trans-mem.c (ipa_tm_create_version): Set externally_visible.
144         (ipa_tm_create_version_alias): Same.
145
146 2012-01-18  Uros Bizjak  <ubizjak@gmail.com>
147
148         PR libitm/51830
149         * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
150         * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.
151
152 2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
153             Patrick Marlier  <patrick.marlier@gmail.com>
154             Iain Sandoe  <developer@sandoe-acoustics.co.uk>
155
156         PR lto/51916
157         * lto-wrapper.c (run_gcc): Pass the LTO section name to
158         simple_object_start_read.
159
160 2012-01-23  Richard Guenther  <rguenther@suse.de>
161
162
163         PR tree-optimization/51895
164         * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
165         parameter decomposition into BLKmode components.
166
167 2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>
168
169         * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
170         fake variables for restrict-qualified pointers whose pointed-to type
171         contains a placeholder.
172
173 2012-01-23  Richard Guenther  <rguenther@suse.de>
174
175         PR tree-optimization/51949
176         * ipa-split.c (execute_split_functions): Do not split malloc functions.
177
178 2012-01-23  Jakub Jelinek  <jakub@redhat.com>
179
180         PR rtl-optimization/51933
181         * ree.c (transform_ifelse): Return true right away if dstreg is
182         already wider or equal to cand->mode.
183         (enum ext_modified_kind, struct ext_modified, ext_state): New types.
184         (make_defs_and_copies_lists): Remove defs_list and copies_list
185         arguments, add state argument, just truncate state->work_list
186         instead of always allocating and freeing the vector.  Assert that
187         get_defs succeeds instead of returning 2.  Changed return type to bool.
188         (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
189         have ext_src_mode, see if it has been modified already with the
190         right kind of extension and has been extended before from the
191         ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
192         just return true.  Remember the original mode in state->modified array.
193         (combine_reaching_defs): Add state argument.  Don't allocate and
194         free here def_list, copied_list and vec vectors, instead just
195         VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
196         (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
197         Add state variable, clear vectors in it, initialize state.modified
198         if needed.  Free all the vectors at the end and state.modified too.
199         Don't skip a candidate if the extension expression has been modified.
200
201 2012-01-22  Douglas B Rupp  <rupp@gnat.com>
202
203         PR target/47096
204         * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
205          configurations. Change triplet to i[34567]86-*-interix[3-9]*.
206         (extra_options) interix.opt -> i386/interix.opt"
207         (extra_objs):Add winnt-stubs.o
208         * configure.ac: Add interix to target_os .comm on PE check.
209         * configure: Regenerate.
210         * config/interix3.h: Delete and move bits to..
211         * config/interix.h: Delete and move bits to..
212         * config/i386/i386-interix3.h: Delete and move bits to..
213         * config/i386/i386-interix.h: ..here.
214         (TARGET_CPU_DEFAULT): Remove redefinition.
215         (TARGET_ASM_CONSTRUCTOR): Undefine.
216         (SUBTARGET_SWITCHES): Define for ms-bitfields.
217         (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
218         (PTRDIFF_TYPE): Define.
219         (LONG_DOUBLE_TYPE_SIZE): Define.
220         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
221         (SUBTARGET_OVERRIDE_OPTIONS): Remove.
222         (TARGET_SECTION_TYPE_FLAGS): Define.
223         (ASM_DECLARE_FUNCTION_NAME): Define.
224         (ASM_OUTPUT_EXTERNAL): Define.
225         (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
226         (ASM_OUTPUT_ALIGNED_BSS): Define.
227         (PCC_BITFIELD_TYPE_MATTERS): Define.
228         (USE_CONST_SECTION): Define.
229         (SUBTARGET_ENCODE_SECTION_INFO): Remove.
230         (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
231         (SUPPORTS_ONE_ONLY): Remove.
232         (I386_PE_STRIP_ENCODING): Define.
233         * config/interix.opt: Delete and move bits to..
234         * config/i386/interix.opt: ..here. New.
235         (mpe-aligned-commons): Add.
236         * config/i386/t-interix: Add copyright header.
237         (winnt-stubs.o): Add rule.
238
239 2012-01-22  Jason Merrill  <jason@redhat.com>
240
241         PR c++/51832
242         * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
243         for extra name aliases.
244
245 2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>
246
247         PR rtl-optimization/51924
248         * ree.c (combine_set_extension): Improve debugging message.
249         (combine_reaching_defs): Likewise.
250         (get_defs): Rename confusingly named variable.
251         (find_and_remove_re): Skip a candidate if the extension expression has
252         been modified.
253
254 2012-01-21  Robert Millan  <rmh@gnu.org>
255             Gerald Pfeifer  <gerald@pfeifer.com>
256
257         * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
258         (GNU_USER_DYNAMIC_LINKER): Adjust indentation.
259
260 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
261
262         PR tree-optimization/51914
263         * tree-vect-stmts.c (vectorizable_conversion): For
264         cvt_type && modifier == WIDEN, put temporary with cvt_type
265         at the beginning of vec_dsts and set vec_dest to temporary
266         with vectype_out.
267
268 2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>
269
270         * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.
271
272 2011-01-20  Tijl Coosemans  <tijl@coosemans.org>
273
274         * config/i386/i386.c: Fix checks for !TARGET_MACHO.
275         * config/rs6000/rs6000.c: Likewise.
276
277 2012-01-20  Jakub Jelinek  <jakub@redhat.com>
278
279         PR target/51915
280         * config/arm/arm.c (arm_count_output_move_double_insns): Call
281         output_move_double on a copy of operands array.
282
283 2012-01-20  Cary Coutant  <ccoutant@google.com>
284             Dodji Seketeli  <dodji@redhat.com>
285
286         PR debug/45682
287         * dwarf2out.c (copy_declaration_context): Return ref to parent
288         of declaration DIE, if necessary.
289         (remove_child_or_replace_with_skeleton): Add new parameter; update
290         caller.  Place skeleton DIE under parent DIE of original declaration.
291         Move call to copy_declaration_context to here ...
292         (break_out_comdat_types): ... from here.
293
294 2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
295
296         PR rtl-optimization/51856
297         * reload.c (find_reloads_subreg_address): Set the address_reloaded
298         flag to reloaded.
299
300 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
301
302         PR target/51819
303         * config/arm/arm.c (arm_print_operand): Correct output of alignment
304         hints for neon loads and stores.
305
306 2012-01-20  Georg-Johann Lay  <avr@gjlay.de>
307
308         PR target/49868
309         PR target/50887
310         * doc/extend.texi (Named Address Spaces): Split into subsections.
311         (AVR Named Address Spaces): New subsection.
312         (M32C Named Address Spaces): New subsection.
313         (RL78 Named Address Spaces): New subsection.
314         (SPU Named Address Spaces): New subsection.
315         (Variable Attributes): New anchor "AVR Variable Attributes".
316         (AVR Variable Attributes): Rewrite and avoid wording
317         "address space" in this context.
318         * doc/invoke.texi (AVR Options): Rewrite and add documentation
319         for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
320         (AVR Built-in Macros): New subsubsection therein.
321         * doc/md.texi (AVR constraints): Remove "C04", "R".
322
323 2012-01-20  Richard Guenther  <rguenther@suse.de>
324
325         PR tree-optimization/51903
326         * tree-ssa-pre.c (eliminate): Properly purging of EH edges
327         when removing stmts.
328
329 2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
330
331         PR target/50313
332         * config/arm/arm.c (arm_load_pic_register): Use
333         gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
334         , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
335         (arm_pic_static_addr): Likewise.
336         (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
337         (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
338         * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
339         (pic_load_addr_unified): New.
340
341 2012-01-20  Andrey Belevantsev  <abel@ispras.ru>
342
343         PR target/51106
344         * function.c (instantiate_virtual_regs_in_insn): Use
345         delete_insn_and_edges when removing a wrong asm insn.
346
347 2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>
348
349         PR rtl-optimization/40761
350         * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
351         Add new member loop_num.
352         (IRA_LOOP_NODE_BY_INDEX): Modify the check.
353         (ira_build): Remove the parameter.
354
355         * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
356         (ira.c): Do not build CFG loops for one region allocation.  Remove
357         argument from ira_build call.
358
359         * ira-build.c (init_loop_tree_node): New function.
360         (create_loop_tree_nodes): Use it.  Separate the case when CFG
361         loops are not built.
362         (more_one_region_p): Check current_loops.
363         (finish_loop_tree_nodes): Separate the case when CFG loops are not
364         built.
365         (add_loop_to_tree): Process loop equal to NULL too.
366         (form_loop_tree): Separate the case when CFG loops are not built.
367         Use explicitly number for the root.
368         (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
369         an assertion.
370         (ira_print_expanded_allocno, loop_compare_func): Use loop_num
371         instead of loop->num.
372         (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
373         (mark_all_loops_for_removal): Ditto.
374         (remove_unnecessary_regions): Separate the case when CFG loops
375         are not built.
376         (ira_build): Remove the parameter.  Use explicit number of regions
377         when CFG loops are not built.
378
379         * ira-color.c (print_loop_title): Separate the case for the root node.
380         Use loop_num instead of loop->num.
381         (move_spill_restore): Use loop_num instead of loop->num.
382
383         * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
384         (change_loop): Ditto.
385         (change_loop): Use loop_num instead of loop->num.
386
387         * ira-lives.c (process_bb_node_lives): Ditto.
388
389         * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.
390
391         * ira-conflicts.c (print_allocno_conflicts): Ditto.
392
393 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
394
395         PR libmudflap/40778
396         * tree-mudflap.c (mf_artificial): New function.
397         (execute_mudflap_function_ops, execute_mudflap_function_decls,
398         mx_register_decls, mudflap_enqueue_decl): Use it.
399
400         PR target/51876
401         * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
402         numbers in the insn pattern.
403
404 2012-01-19  Michael Matz  <matz@suse.de>
405
406         PR tree-optimization/46590
407         * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
408         use it in remembering which conflicts we already created.
409         (add_scope_conflicts): Adjust call to above, (de)allocate helper
410         bitmap.
411
412 2012-01-19  Aldy Hernandez  <aldyh@redhat.com>
413
414         PR lto/51280
415         * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
416         (merge_and_complain): Same.
417
418 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
419
420         PR bootstrap/50237
421         * config/initfini-array.h: Guard content of the header
422         with #ifdef HAVE_INITFINI_ARRAY.
423         * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
424         Add initfini-array.h to tm_file here.
425         * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
426         * config.gcc: Don't add initfini-array.h to tm_file here.
427         * configure: Regenerated.
428
429 2012-01-19  Andrey Belevantsev  <abel@ispras.ru>
430
431         PR rtl-optimization/51505
432         * df-problems.c (df_kill_notes): New parameter live. Update comment.
433         Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
434         (df_note_bb_compute): Update the call to df_kill_notes.
435
436 2012-01-18  Aldy Hernandez  <aldyh@redhat.com>
437
438         * trans-mem.c (requires_barrier): Remove call to is_global_var.
439
440 2012-01-18  Richard Guenther  <rguenther@suse.de>
441
442         * tree-ssa.c (useless_type_conversion_p): Remove special-casing
443         of conversions to void *.
444
445 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
446             Richard Sandiford  <rdsandiford@googlemail.com>
447
448         PR middle-end/50325
449         PR middle-end/51192
450         * optabs.h (simplify_expand_binop): Declare.
451         * optabs.c (simplify_expand_binop): Make global.
452         * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
453         endian targets if the source cannot be exactly covered by word
454         mode chunks.
455
456 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
457
458         PR bootstrap/51872
459         * hard-reg-set.h (struct hard_reg_set_container): New type.
460         * target.h (struct hard_reg_set_container): Forward declare.
461         * target.def (set_up_by_prologue): New target hook.
462         * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
463         * doc/tm.texi: Regenerated.
464         * function.c (thread_prologue_and_epilogue_insns): Change
465         set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
466         Call targetm.set_up_by_prologue on it.
467         * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
468         (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
469
470 2012-01-17  Nick Clifton  <nickc@redhat.com>
471
472         * config/rx/rx.c (rx_can_use_simple_return): New function.
473         * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
474         * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.
475
476 2012-01-17  Richard Guenther  <rguenther@suse.de>
477
478         PR middle-end/51782
479         * expr.c (expand_assignment): Take address-space information
480         from the address operand of MEM_REF and TARGET_MEM_REF.
481         (expand_expr_real_1): Likewise.
482
483 2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
484
485         * ira.c (do_reload): Make sure ira_dump_file is re-set if no
486         reload dump is requested.
487
488 2012-01-17  Aldy Hernandez  <aldyh@redhat.com>
489
490         PR other/51165
491         * trans-mem.c (requires_barrier): Call may_be_aliased.
492
493 2012-01-17  Jakub Jelinek  <jakub@redhat.com>
494
495         PR tree-optimization/51877
496         * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
497         call arguments and fndecls compare equal, instead return false if they
498         don't.  Return true only if lhs1 and lhs2 are either both NULL, or
499         both SSA_NAMEs that are valueized the same, or they satisfy
500         operand_equal_p.
501
502 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
503
504         * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
505         Solaris 11+.
506         * configure: Regenerate.
507
508 2012-01-16  Jan Hubicka  <jh@suse.cz>
509
510         PR c/12245
511         PR c++/14179
512         * convert.c (convert_to_integer): Use fold_convert for
513         converting an INTEGER_CST to integer type.
514
515 2012-01-16  Jason Merrill  <jason@redhat.com>
516
517         PR c++/14179
518         * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.
519
520 2012-01-16  Jakub Jelinek  <jakub@redhat.com>
521
522         PR bootstrap/51860
523         * config/s390/s390.c (s390_chunkify_start): Don't skip
524         call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
525         NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
526         If insn is followed by NOTE_INSN_VAR_LOCATION or
527         NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
528         Don't use location of note insns.
529
530         PR tree-optimization/51865
531         * tree-inline.c (tree_function_versioning): Call remap_decl
532         on DECL_RESULT whenever it has VOID_TYPE_P type.
533
534 2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
535
536         * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
537         for calls to locally-binding MIPS16 functions if only the return
538         type uses float regs.
539
540 2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
541             Richard Sandiford  <rdsandiford@googlemail.com>
542
543         * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
544         (SYMBOL_32_HIGH): Likewise.
545         (mips_output_tls_reloc_directive): Declare.
546         * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
547         (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
548         * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
549         (mips_lo_relocs, mips_hi_relocs): Make extern.
550         (mips16_stub_function): Move up file.
551         (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
552         (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
553         (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
554         (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
555         SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
556         (mips_get_tp): Add MIPS16 support.
557         (mips_legitimize_tls_address): Remove MIPS16 sorry().
558         Generalize DTPREL and TPREL handling.
559         (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
560         Add MIPS16 TLS support.
561         (mips_output_tls_reloc_directive): New function.
562         (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
563         * config/mips/predicates.md (symbolic_operand_with_high)
564         (tls_reloc_operand): New predicates.
565         (force_to_mem_operand): Use mips_use_pcrel_pool_p.
566         * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
567         (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
568         (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
569         (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
570         (*tls_get_tp_mips16_call_<mode>): Likewise.
571
572 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
573
574         PR rtl-optimization/51821
575         * recog.c (peep2_find_free_register): Determine clobbered registers
576         from insn pattern.
577
578 2012-01-14  Denis Chertykov  <chertykov@gmail.com>
579
580         PR target/50925
581         * config/avr/avr-protos.h: Revert change of 2012-01-09.
582         * config/avr/avr.c: Likewise.
583         * config/avr/avr.h: Likewise.
584
585 2012-01-13  Ian Lance Taylor  <iant@google.com>
586
587         PR c++/50012
588         * tree.h (TYPE_QUALS): Add cast to int.
589         (TYPE_QUALS_NO_ADDR_SPACE): Likewise.
590
591 2012-01-13  Ian Lance Taylor  <iant@google.com>
592
593         * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
594         comparing param_index to VEC_length result.
595
596 2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>
597
598         * c-decl.c: Do not include tree-mudflap.h
599         * tree-optimize.c: Likewise.
600         * Makefile.in: Update dependencies.
601
602 2012-01-13  Richard Guenther  <rguenther@suse.de>
603
604         PR middle-end/8081
605         * gimplify.c (gimplify_modify_expr_rhs): For calls with a
606         variable-sized result always use RSO.
607
608 2012-01-12  DJ Delorie  <dj@redhat.com>
609
610         * cfgexpand.c (convert_debug_memory_address): Allow any valid
611         pointer type, not just the default pointer type.
612
613 2012-01-09  Richard Henderson  <rth@redhat.com>
614             Denis Chertykov  <chertykov@gmail.com>
615
616         PR target/50925
617         * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
618         * config/avr/avr.c (avr_can_eliminate): Simplify.
619         (avr_initial_elimination_offset): Likewise.
620         (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
621         (expand_epilogue): Likewise.
622         (avr_legitimize_address): Gut.
623         (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
624         (avr_hard_regno_nregs): New.
625         (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
626         (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
627         * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
628         add soft frame pointer.
629         (CALL_USED_REGISTERS): Likewise.
630         (REG_CLASS_CONTENTS): Likewise.
631         (REGISTER_NAMES): Likewise.
632         (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
633         (HARD_FRAME_POINTER_REGNUM): New.
634         (FRAME_POINTER_REGNUM): Use soft frame pointer.
635         (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
636         remove the HARD_FRAME_POINTER self-elimination.
637
638 2012-01-12  Georg-Johann Lay  <avr@gjlay.de>
639
640         PR target/51756
641         * config/avr/avr.c (avr_encode_section_info): Test for absence of
642         DECL_EXTERNAL when checking for initializers of progmem variables.
643
644 2012-01-12  Ira Rosen  <irar@il.ibm.com>
645
646         PR tree-optimization/51799
647         * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
648         that the last operation is a type demotion.
649
650 2012-01-12  Uros Bizjak  <ubizjak@gmail.com>
651
652         * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
653         (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.
654
655 2012-01-11  Jakub Jelinek  <jakub@redhat.com>
656
657         PR bootstrap/51796
658         * combine.c (distribute_notes): If i3 is a noreturn call,
659         allow old_size to be equal to args_size and make sure the
660         noreturn call gets REG_ARGS_SIZE note.
661         * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
662         on noreturn calls even when the delta is 0.
663
664 2012-01-11  Nathan Sidwell  <nathan@acm.org>
665
666         * gcov.c (STRING_SIZE): Remove.
667         (generate_results): Erase annotations for source files with no
668         coverage information.
669         (read_line): New.
670         (output_lines): Use it.
671
672 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
673
674         * gimple.h (gimplify_body): Remove first argument.
675         * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
676         pointer set here, instead just pass DATA to walk_tree.
677         (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
678         set here and invoke copy_if_shared on the size trees of DECL_RESULT.
679         (unvisit_body): Likewise, but with unmark_visited.
680         (gimplify_body): Remove BODY_P argument and adjust.
681         (gimplify_function_tree): Adjust call to gimplify_body.
682         * omp-low.c (finalize_task_copyfn): Likewise.
683
684 2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>
685
686         * tree.h (build_function_decl_skip_args): Add boolean parameter.
687         (build_function_type_skip_args): Delete.
688         * tree.c (build_function_type_skip_args): Make static and add
689         SKIP_RETURN parameter.  Fix thinko in the handling of variants.
690         (build_function_decl_skip_args): Add SKIP_RETURN parameter and
691         pass it to build_function_type_skip_args.
692         * cgraph.h (cgraph_function_versioning): Add boolean parameter.
693         (tree_function_versioning): Likewise.
694         * cgraph.c (cgraph_create_virtual_clone): Adjust call to
695         build_function_decl_skip_args.
696         * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
697         and pass it to build_function_decl_skip_args/tree_function_versioning.
698         (cgraph_materialize_clone): Adjust call to tree_function_versioning.
699         * ipa-inline-transform.c (save_inline_function_body): Likewise.
700         * trans-mem.c (ipa_tm_create_version): Likewise.
701         * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
702         * tree-inline.c (declare_return_variable): Remove always-true test.
703         (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
704         returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
705         * ipa-split.c (split_function): Skip the return value for the split
706         part if it doesn't return.
707
708 2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
709
710         PR tree-optimization/49642
711         * ipa-split.c (forbidden_dominators): New variable.
712         (check_forbidden_calls): New function.
713         (dominated_by_forbidden): Likewise.
714         (consider_split): Check for forbidden dominators.
715         (execute_split_functions): Initialize and free forbidden
716         dominators info; call check_forbidden_calls.
717
718 2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
719
720         * config/arm/arm.md (mov_notscc): Use MVN for false condition.
721
722 2012-01-11  Nick Clifton  <nickc@redhat.com>
723
724         * config/rx/rx.md (return): Define pattern.
725
726 2012-01-11  Richard Guenther  <rguenther@suse.de>
727
728         * doc/extend.texi (malloc attribute): Adjust according to
729         implementation.
730
731 2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
732             Patrick Marlier  <patrick.marlier@gmail.com>
733
734         PR middle-end/51516
735         * trans-mem.c (get_cg_data): Traverse aliases if requested.
736         (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
737         (ipa_tm_note_irrevocable): Same.
738         (ipa_tm_scan_irr_block): Same.
739         (ipa_tm_decrement_clone_counts): Same.
740         (ipa_tm_scan_irr_function): Same.
741         (ipa_tm_create_version_alias): Same.
742         (ipa_tm_create_version): Same.
743         (ipa_tm_transform_calls_redirect): Same.
744         (ipa_tm_transform_calls): Same.
745         (ipa_tm_transform_transaction): Same.
746         (ipa_tm_execute): Same.
747
748 2012-01-10  Richard Guenther  <rguenther@suse.de>
749
750         PR middle-end/51806
751         * opts.c (common_handle_option): Handle -Werror.
752
753 2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>
754
755         * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
756         operand number.
757
758 2012-01-10  Jason Merrill  <jason@redhat.com>
759
760         * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
761         information.
762
763 2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
764
765         * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
766         supports R_386_TLS_GD_PLT reloc.
767         (gcc_cv_as_ix86_tlsldmplt): Check if linker
768         supports R_386_TLS_LDM_PLT reloc.
769         * configure: Regenerate.
770         * config.in: Regenerate.
771
772 2012-01-10  Georg-Johann Lay  <avr@gjlay.de>
773
774         PR target/49868
775         Extend __pgmx semantics to linearize memory.
776         * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
777         determine if code comes inline or from libgcc.
778         (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
779         (movmem_qi, movmem_qi): Set constraint #2 to "n".
780         (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
781         (movmemx_qi, movmemx_hi): New insns.
782         (xload_<mode>_libgcc): Rewrite to new insn condition.
783         (xload_<mode>): Remove insns.
784         * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
785         cases that don't satisfy avr_xload_libgcc_p().
786         (avr_addr_space_convert): Allow converting in any direction.
787         (avr_addr_space_subset_p): Return always true.
788         (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
789         (avr_emit_movmemhi): Ditto.
790         (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
791         (avr_out_movmem): Ditto.
792         (AVR_SYMBOL_FLAG_PROGMEM): New macro.
793         (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
794         (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
795         (avr_encode_section_info): Encode 'progmem' in symbol flags.
796         (output_reload_in_const): Don't zero-extend any 24-bit symbols.
797
798 2012-01-10  Richard Guenther  <rguenther@suse.de>
799
800         PR tree-optimization/50913
801         * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
802         Require data-refs to be representable by Graphite with respect
803         to any loop nest.
804
805 2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
806
807         * config/i386/constraints.md ("L"): Return true for 0xffffffff.
808         * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
809
810 2012-01-10  Tom de Vries  <tom@codesourcery.com>
811
812         PR rtl-optimization/51271
813         * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
814         handling annulled branch.
815
816 2012-01-10  Richard Henderson  <rth@redhat.com>
817
818         * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
819         TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
820         struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
821         arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
822         arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
823         arm_expand_vec_perm_const): New.
824         * config/arm/arm-protos.h: Update.
825         * config/arm/neon.md (UNSPEC_VCONCAT): New.
826         (*neon_vswp<VDQX>): New.
827         (neon_vcombine<VDX>): Use neon_split_vcombine.
828         (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
829         * config/arm/vec-common.md (vec_perm_const<VALL>): New.
830         (vec_perm<VE>): New.
831
832 2012-01-10  Richard Henderson  <rth@redhat.com>
833
834         * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
835         use it if reload_completed.
836         (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
837         arm_output_asm_insn, arm_process_output_memory_barrier,
838         arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
839         arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
840         arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
841         arm_process_output_sync_insn, arm_output_sync_insn,
842         arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
843         (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
844         (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
845         (emit_unlikely_jump): New.
846         (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
847         (arm_split_atomic_op): New.
848         * config/arm/arm-protos.h: Update.
849         * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
850         (struct arm_sync_generator): Remove.
851         * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
852         VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
853         (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
854         (VUNSPEC_LL, VUNSPEC_SC): New.
855         (sync_result, sync_memory, sync_required_value, sync_new_value,
856         sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
857         (attr length): Don't use arm_sync_loop_insns.
858         (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
859         (movsfcc, movdfcc): Likewise.
860         * config/arm/constraints.md (Ua): New.
861         * config/arm/prediates.md (mem_noofs_operand): New.
862         (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
863         (sync_clobber, sync_t2_reqd): Remove.
864         (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
865         (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
866         (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
867         (arm_sync_compare_and_swap<SIDI>): Remove.
868         (arm_sync_compare_and_swap<NARROW>): Remove.
869         (arm_sync_lock_test_and_set<SIDI>): Remove.
870         (arm_sync_lock_test_and_set<NARROW>): Remove.
871         (arm_sync_new_<syncop><SIDI>): Remove.
872         (arm_sync_new_<syncop><NARROW>): Remove.
873         (arm_sync_new_nand<SIDI>): Remove.
874         (arm_sync_new_nand<NARROW>): Remove.
875         (arm_sync_old_<syncop><SIDI>): Remove.
876         (arm_sync_old_<syncop><NARROW>): Remove.
877         (arm_sync_old_nand<SIDI>): Remove.
878         (arm_sync_old_nand<NARROW>): Remove.
879         (*memory_barrier): Merge arm_output_memory_barrier.
880         (atomic_compare_and_swap<QHSD>): New.
881         (atomic_compare_and_swap<NARROW>_1): New.
882         (atomic_compare_and_swap<SIDI>_1): New.
883         (atomic_exchange<QHSD>): New.
884         (cas_cmp_operand, cas_cmp_str): New.
885         (atomic_op_operand, atomic_op_str): New.
886         (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
887         (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
888         (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
889         (arm_load_exclusive<NARROW>): New.
890         (arm_load_exclusivesi, arm_load_exclusivedi): New.
891         (arm_store_exclusive<QHSD>): New.
892
893 2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>
894
895         * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
896         reload patterns if -mvsx-scalar-memory.
897
898         * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
899         generated, even -mno-vsx-scalar-double was used.
900         (vsx_xscvdpsp_scalar): Likewise.
901         (vsx_xscvspdp_scalar2): Likewise.
902
903 2012-01-09  Tom de Vries  <tom@codesourcery.com>
904             Andrew Pinski  <apinski@cavium.com>
905
906         PR debug/51471
907         * reorg.c (fill_slots_from_thread): Don't speculate
908         frame-related insns.
909
910 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
911
912         * sched-int.h (bb_note): Move to...
913         * basic-block.h: ...here.
914         * haifa-sched.c (bb_note): Move to...
915         * cfgrtl.c: ...here.
916         * function.c (next_block_for_reg): New function.
917         (move_insn_for_shrink_wrap): Likewise.
918         (prepare_shrink_wrap): Rewrite to use the above.
919
920 2012-01-09  Aldy Hernandez  <aldyh@redhat.com>
921
922         * gimple.c (is_gimple_non_addressable): Remove.
923         * gimple.h: Remove is_gimple_non_addressable.
924         * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
925         is_gimple_non_addressable.
926         * trans-mem.c (expand_assign_tm): Same.
927
928 2012-01-09  Richard Guenther  <rguenther@suse.de>
929
930         PR tree-optimization/51775
931         * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
932         * tree-ssa-pre.c (eliminate): Properly fixup EH info.
933
934 2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
935
936         * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
937         tuning parameters.
938         * config/arm/arm.c (arm_cortex_a15_tune): New static variable.
939
940 2012-01-09  Richard Guenther  <rguenther@suse.de>
941
942         * tree-streamer-out.c (write_ts_optimization): Fix spelling.
943
944 2012-01-08  Jan Hubicka  <jh@suse.cz>
945
946         PR tree-optimize/51680
947         * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
948         on when known_vals needs to be computed; cleanup.
949
950 2012-01-08  Jan Hubicka  <jh@suse.cz>
951
952         PR tree-optimize/51694
953         * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.
954
955 2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
956
957         * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
958         for -std=c++98 and -std=c++11 too.
959
960 2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>
961
962         * cfgloop.c (cancel_loop): Add free() of bbs array.
963
964 2012-01-07  Jan Hubicka  <jh@suse.cz>
965
966         PR tree-optimization/51600
967         * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
968         that benefits small functions.
969
970 2012-01-07  Jan Hubicka  <jh@suse.cz>
971
972         * ipa-inline.c (want_inline_small_function_p): Fix formating.
973
974 2012-01-07  Jan Hubicka  <jh@suse.cz>
975
976         PR tree-optimization/51680
977         * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
978         whose inlining reduce unit size.
979
980 2012-01-07  Alexandre Oliva  <aoliva@redhat.com>
981
982         PR bootstrap/51725
983         * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
984         Add canonical node to containing_mem chain after the non-canonical
985         one, even if there weren't any locs to propagate.
986         (remove_useless_values): Keep only canonical values.
987         (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
988         (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
989         canonicalize mem_chain elements that are not discarded.
990
991 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
992
993         PR target/47333
994         * cgraphunit.c (cgraph_optimize): Call output_weakrefs
995         before emitting functions.
996
997         PR gcov-profile/50127
998         * bb-reorder.c (partition_hot_cold_basic_blocks): Call
999         clear_aux_for_blocks.
1000
1001 2012-01-06  Alexandre Oliva  <aoliva@redhat.com>
1002
1003         PR debug/51746
1004         * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.
1005
1006 2012-01-06  Arnaud Charlet  <charlet@adacore.com>
1007
1008         * c-decl.c (ext_block): Moved up.
1009         (collect_all_refs, for_each_global_decl): Take ext_block into account.
1010
1011 2012-01-06  Han Shen  <shenhan@google.com>
1012
1013         Translate built-in include paths for sysroot.
1014         * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
1015         (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.
1016
1017         * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
1018         GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.
1019
1020         * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
1021         control whether sysroot should be prepended to gxx include dir.
1022
1023         * configure: Regenerate.
1024
1025 2012-01-06  Torvald Riegel  <triegel@redhat.com>
1026
1027         PR rtl-optimization/51771
1028         * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
1029         * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
1030
1031 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1032
1033         PR tree-optimization/51315
1034         * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
1035         (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.
1036
1037 2012-01-05  Uros Bizjak  <ubizjak@gmail.com>
1038
1039         PR target/51681
1040         * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
1041         for shrp pattern.  Correctly handle and fixup shift variable.
1042         Return false when shift > nelt for BYTES_BIG_ENDIAN target.
1043
1044 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1045
1046         PR debug/51762
1047         * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
1048         note when !ACCUMULATE_OUTGOING_ARGS.
1049
1050 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>
1051
1052         * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
1053         condition.
1054         (extract_range_from_unary_expr_1): Avoid useless computations.
1055
1056 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1057
1058         PR rtl-optimization/51767
1059         * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
1060         of jump_block and add an extra edge for degenerated asm gotos.
1061
1062         PR middle-end/51768
1063         * stmt.c (check_unique_operand_names): Don't ICE during error
1064         reporting if i is from labels chain.
1065
1066         PR middle-end/44777
1067         * profile.c (branch_prob): Split bbs that have exit edge
1068         and need a fake entry edge too.
1069
1070 2012-01-05  Jan Hubicka  <jh@suse.cz>
1071
1072         PR middle-end/49710
1073         * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
1074         unlooping loops.
1075
1076 2012-01-05  Richard Guenther  <rguenther@suse.de>
1077
1078         PR lto/50490
1079         * tree-streamer-out.c (write_ts_optimization): New function.
1080         (streamer_write_tree_body): Call it.
1081         * tree-streamer-in.c (lto_input_ts_optimization): New function.
1082         (streamer_read_tree_body): Call it.
1083         * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.
1084
1085 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1086
1087         PR middle-end/51761
1088         * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
1089         * gimplify.c (gimplify_cleanup_point_expr): Save and set
1090         in_cleanup_point_expr before gimplify_stmt call and restore it
1091         afterwards.
1092         (gimplify_target_expr): Don't add {CLOBBER} cleanup if
1093         in_cleanup_point_expr is false.
1094
1095 2012-01-05  Richard Guenther  <rguenther@suse.de>
1096
1097         PR middle-end/51764
1098         * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
1099         to c.opt.
1100         * toplev.c (process_options): Reject combining mudflap and LTO.
1101         * tree-nomudflap.c (nogo): Use sorry instead of internal_error.
1102
1103 2012-01-05  Richard Guenther  <rguenther@suse.de>
1104
1105         PR tree-optimization/51760
1106         * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
1107         not VARYING.
1108         (bit_value_unop): Handle UNDEFINED operands.
1109         (bit_value_binop): Likewise.
1110
1111 2012-01-05  Georg-Johann Lay  <avr@gjlay.de>
1112
1113         * config/avr/avr.c (avr_replace_prefix): Remove.
1114         (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
1115         (avr_asm_function_rodata_section): Ditto.
1116         (avr_asm_select_section): Ditto.
1117
1118 2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>
1119
1120         * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
1121         insertion.
1122
1123 2012-01-05  Jakub Jelinek  <jakub@redhat.com>
1124
1125         PR bootstrap/51648
1126         * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
1127         calls that have any non-fake successor edges.
1128
1129         PR debug/51746
1130         * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.
1131
1132 2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>
1133
1134         PR tree-optimization/51624
1135         * tree-sra.c (build_ref_for_model): When replicating a chain of
1136         COMPONENT_REFs, stop as soon as the offset would become negative.
1137
1138 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
1139
1140         PR debug/51695
1141         * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
1142         in .debug_loc on the floor.
1143
1144 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1145
1146         * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.
1147
1148 2012-01-04  Andrew Pinski  <apinski@cavium.com>
1149             Adam Nemet  <anemet@caviumnetworks.com>
1150
1151         * config/mips/mips.md (size): Add SI and DI.
1152         (SIZE): New mode attribute.
1153         (U): New code attribute.
1154         * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
1155         (mips_lbux_<mode>): Delete.
1156         (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
1157         (mips_lhx): Use gen_mips_lhx_extsi.
1158         (mips_lhx_<mode>): Delete.
1159         (mips_lwx): Delete.
1160         (mips_l<size>x): New expand.
1161         (mips_lwx_<mode>): Delete.
1162         (mips_l<GPR:size>x_<P:mode>): New pattern.
1163         (*mips_lw<u>x_<P:mode>_ext): Likewise.
1164         * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
1165         * config/mips/mips.c (mips_lx_address_p): New function.
1166         (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
1167         (dsp64): New availability predicate.
1168         (mips_builtins): Add an entry for __builtin_mips_ldx.
1169         * config/mips/mips.h (ISA_HAS_LBX): New define.
1170         (ISA_HAS_LBUX): Likewise.
1171         (ISA_HAS_LHX): Likewise.
1172         (ISA_HAS_LHUX): Likewise.
1173         (ISA_HAS_LWX): Likewise.
1174         (ISA_HAS_LWUX): Likewise.
1175         (ISA_HAS_LDX): Likewise.
1176         * doc/extend.texi (__builtin_mips_ldx): Document.
1177
1178 2012-01-04  Tristan Gingold  <gingold@adacore.com>
1179
1180         * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
1181         when long pointers are used.
1182         * config.build (*-*-*vms*): Handle all OpenVMS targets.
1183         (alpha64-dec-*vms*, alpha*-dec-*vms*)
1184         (ia64-hp-*vms*): Remove.
1185         * config/vms/xm-vms64.h: Delete.
1186
1187 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1188
1189         PR middle-end/51472
1190         * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.
1191
1192 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1193
1194         * opts.c (finish_options): Remove duplicate sorry.
1195
1196 2012-01-04  Aldy Hernandez  <aldyh@redhat.com>
1197
1198         PR middle-end/51696
1199         * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
1200         correctly.
1201
1202 2012-01-04  Richard Guenther  <rguenther@suse.de>
1203
1204         PR middle-end/51750
1205         * tree.c (size_low_cst): New function.
1206         * tree.h (size_low_cst): Declare.
1207         * fold-const.c (fold_comparison): Use it to extract the low
1208         part of the POINTER_PLUS_EXPR offset.
1209
1210 2012-01-04  Georg-Johann Lay  <avr@gjlay.de>
1211
1212         Fix clearing ZERO_REG
1213         * config/avr/avr.md (cc): Add alternative "ldi".
1214         (movqi_insn): Use it in cc attribute.
1215         * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
1216         (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
1217         (output_reload_insisf): Use ZERO_REG to pre-clear register.
1218
1219 2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1220
1221         * configure: Regenerate.
1222
1223 2012-01-04  Richard Guenther  <rguenther@suse.de>
1224
1225         PR tree-optimization/49651
1226         * tree-ssa-structalias.c (type_can_have_subvars): New function.
1227         (var_can_have_subvars): Use it.
1228         (get_constraint_for_1): Only consider subfields if there can be any.
1229
1230 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1231
1232         PR bootstrap/51725
1233         * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
1234         to its new canonical_cselib_val and the cselib_val was in
1235         first_containing_mem chain, but the canonical_cselib_val was not,
1236         add the latter into the chain.
1237         (cselib_invalidate_mem): Compare canonical_cselib_val of
1238         addr_list chain elt with v.
1239
1240         PR pch/51722
1241         * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
1242         dwarf2out_undef): Allocate e.info using ggc_strdup instead
1243         of xstrdup.
1244         (output_macinfo_op): Don't ggc_strdup fd->filename.
1245         (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
1246         then ggc_strdup it.  Don't free inc->info or cur->info.
1247         (output_macinfo): Don't free ref->info or file->info.
1248
1249 2012-01-03  Ira Rosen  <irar@il.ibm.com>
1250
1251         PR tree-optimization/51269
1252         * tree-vect-loop-manip.c (set_prologue_iterations): Make
1253         first_niters a pointer.
1254         (slpeel_tree_peel_loop_to_edge): Likewise.
1255         (vect_do_peeling_for_loop_bound): Update call to
1256         slpeel_tree_peel_loop_to_edge.
1257         (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
1258         here.  Remove it from the parameters list.
1259         (vect_do_peeling_for_alignment): Update calls and compute
1260         wide_prolog_niters.
1261
1262 2012-01-03  Richard Guenther  <rguenther@suse.de>
1263
1264         PR tree-optimization/51070
1265         * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
1266         Properly handle calls.
1267
1268 2012-01-03  Richard Guenther  <rguenther@suse.de>
1269
1270         PR tree-optimization/51692
1271         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
1272         the LHS of allocation stmts.
1273
1274 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1275
1276         * system.h: Prior to #define, #undef fopen and freopen unconditionally.
1277
1278 2012-01-03  Olivier Hainque  <hainque@adacore.com>
1279
1280         * collect2.c (main): In AIX specific computations for vector
1281         insertions, use CONST_CAST2 to cast from char ** to const char **.
1282
1283 2012-01-03  Richard Guenther  <rguenther@suse.de>
1284
1285         PR debug/51650
1286         * dwarf2out.c (dwarf2out_finish): Always create a DIE for
1287         the context of a limbo DIE when it does not already exist.
1288
1289 2012-01-03  Jakub Jelinek  <jakub@redhat.com>
1290
1291         PR tree-optimization/51719
1292         * value-prof.c (gimple_ic): When indirect call isn't noreturn,
1293         but direct call is, clear direct call's lhs and don't add fallthrough
1294         edge from dcall_bb to join_bb and PHIs.
1295
1296 2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1297
1298         * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
1299         the instructions emitted by the pattern.
1300         ("*TDC_insn_<mode>"): Add comment.
1301
1302 2012-01-03  Richard Guenther  <rguenther@suse.de>
1303
1304         PR middle-end/51730
1305         * fold-const.c (fold_comparison): Properly canonicalize
1306         tree offset and HOST_WIDE_INT bit position.
1307
1308 2012-01-02  Uros Bizjak  <ubizjak@gmail.com>
1309
1310         * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
1311         operands for extzv pattern.
1312
1313 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1314
1315         PR bootstrap/51725
1316         * cselib.c (add_mem_for_addr): Call canonical_cselib_val
1317         on mem_elt first.
1318
1319 2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>
1320
1321         * doc/invoke.texi (-flto and related options): Copy-edit.
1322
1323 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1324
1325         * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.
1326
1327 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1328
1329         * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
1330         New patterns.
1331
1332 2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
1333
1334         * expr.h (move_by_pieces_ninsns): Declare.
1335         * expr.c (move_by_pieces_ninsns): Make external.
1336         * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
1337         (mips_store_by_pieces_p): Likewise.
1338         * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
1339         (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
1340         * config/mips/mips.c (mips_move_by_pieces_p): New function.
1341         (mips_store_by_pieces_p): Likewise.
1342
1343 2012-01-02  Jakub Jelinek  <jakub@redhat.com>
1344
1345         * passes.c (register_one_dump_file): Free full_name.
1346
1347         * reload1.c (reload): Don't allocate reg_max_ref_width here.
1348         (calculate_elim_costs_all_insns): Free offsets_at and
1349         offsets_known_at at the end and clear the pointers.
1350
1351 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1352
1353         * config/avr/avr.opt (-mbranch-cost): Fix double definition of
1354         this option introduced in r180739.
1355
1356 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1357
1358         PR target/51345
1359         * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
1360         (tmake_file target=avr): Add avr/t-multilib.
1361
1362         * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
1363         to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
1364         * config/avr/genmultilib.awk: New file.
1365         * config/avr/t-multilib: New auto-generated file.
1366         * config/avr/multilib.h: New auto-generated file.
1367         * config/avr/t-avr (AVR_MCUS): New variable.
1368         (genopt.sh): Use it.
1369         (s-mlib): Depend on t-multilib.
1370         (t-multilib, multilib.h): New dependencies.
1371         (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
1372         (MULTILIB_OPTIONS): Remove.
1373         (MULTILIB_MATCHES): Remove.
1374         (MULTILIB_DIRNAMES): Remove.
1375         (MULTILIB_EXCEPTIONS): Remove:
1376         * config/avr/genopt.sh: Don't use hard coded file name;
1377         pass AVR_MCUS from t-avr instead.
1378
1379 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1380
1381         * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".
1382
1383 2012-01-02  Georg-Johann Lay  <avr@gjlay.de>
1384
1385         Implement light-weight DImode support.
1386         * config/avr/avr-dimode.md: New file.
1387         * config/avr/avr.md: Include it.
1388         (adjust_len): Add plus64, compare64.
1389         (HIDI): Remove code iterator.
1390         (code_stdname): New code attribute.
1391         (rotx, rotsmode): Remove DI.
1392         (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
1393         as code iterator.
1394         * config/avr/avr-protos.h (avr_have_dimode): New.
1395         (avr_out_plus64, avr_out_compare64): New.
1396         * config/avr/avr.c (avr_out_compare): Handle DImode.
1397         (avr_have_dimode): New variable definition and initialization.
1398         (avr_out_compare64, avr_out_plus64): New functions.
1399         (avr_out_plus_1): Use simplify_unary_operation to negate xval.
1400         (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
1401         (avr_compare_pattern): Skip DImode comparisons.
1402
1403 2012-01-02  Revital Eres  <revital.eres@linaro.org>
1404
1405         * ddg.c (def_has_ccmode_p): New function.
1406         (add_cross_iteration_register_deps,
1407         create_ddg_dep_from_intra_loop_link): Call it.
1408
1409 2012-01-02  Richard Guenther  <rguenther@suse.de>
1410
1411         PR other/51679
1412         * invoke.texi (fassociative-math): Remove spurious paranthesis.
1413
1414 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1415
1416         * gcc.c (process_command): Update copyright notice dates.
1417         * gcov.c (print_version): Likewise.
1418         * gcov-dump.c (print_version): Likewise.
1419         * mips-tfile.c (main): Likewise.
1420         * mips-tdump.c (main): Likewise.
1421
1422 2012-01-01  Ira Rosen  <irar@il.ibm.com>
1423
1424         PR tree-optimization/51704
1425         * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
1426         a use is inside the basic block or loop before accessing its vect info.
1427
1428 2012-01-01  Jan Hubicka  <jhjh@suse.cz>
1429
1430         PR rtl-optimization/51069
1431         * cfgloopmanip.c (remove_path): Removing path making irreducible
1432         region unconditional makes BB part of the region.
1433
1434 2012-01-01  Jakub Jelinek  <jakub@redhat.com>
1435
1436         PR tree-optimization/51683
1437         * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
1438         calls with side-effects.
1439         * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
1440 \f
1441 Copyright (C) 2012 Free Software Foundation, Inc.
1442
1443 Copying and distribution of this file, with or without modification,
1444 are permitted in any medium without royalty provided the copyright
1445 notice and this notice are preserved.