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