OSDN Git Service

* ipa.c (cgraph_remove_unreachable_nodes): Revert accidental commit.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2010-05-14  Jan Hubicka  <jh@suse.cz>
2
3         * ipa.c (cgraph_remove_unreachable_nodes): Revert accidental commit.
4
5 2010-05-14  Richard Guenther  <rguenther@suse.de>
6
7         PR tree-optimization/44119
8         * tree-ssa-pre.c (eliminate): Properly mark replacement of
9         a PHI node necessary.
10
11 2010-05-14  Eric Botcazou  <ebotcazou@adacore.com>
12
13         * tree.h (TREE_ADDRESSABLE): Remove bogus usage for FIELD_DECL.
14
15 2010-05-14  Jason Merrill  <jason@redhat.com>
16
17         PR c++/44127
18         * gimple.h (enum gf_mask): Add GF_CALL_NOTHROW.
19         (gimple_call_set_nothrow): New.
20         * gimple.c (gimple_build_call_from_tree): Call it.
21         (gimple_call_flags): Set ECF_NOTHROW from GF_CALL_NOTHROW.
22
23         PR c++/44127
24         * gimplify.c (gimplify_seq_add_stmt): No longer static.
25         * gimple.h: Declare it.
26         * gimple.c (gimple_build_eh_filter): No ops.
27
28 2010-05-14  Jan Hubicka  <jh@suse.cz>
29
30         * ipa.c (enqueue_cgraph_node): Update comment; do not re-enqueue
31         nodes already in queue.
32         (cgraph_remove_unreachable_nodes): Cleanup; fix problem with
33         re-enqueueing node.
34
35 2010-05-14  Jakub Jelinek  <jakub@redhat.com>
36
37         PR debug/44136
38         * cfgexpand.c (expand_debug_expr): If non-memory op0
39         has BLKmode, return NULL.
40
41 2010-05-14  Harsha Jagasia  <harsha.jagasia@amd.com>
42
43         * config.gcc: Add support for --with-cpu option for bdver1.
44         * config/i386/i386.h (TARGET_BDVER1): New macro.
45         (ix86_tune_indices): Change SSE_UNALIGNED_MOVE_OPTIMAL
46         to SSE_UNALIGNED_LOAD_OPTIMAL. Add SSE_UNALIGNED_STORE_OPTIMAL.
47         (ix86_tune_features) :Change SSE_UNALIGNED_MOVE_OPTIMAL
48         to SSE_UNALIGNED_LOAD_OPTIMAL. Add SSE_UNALIGNED_STORE_OPTIMAL.
49         Add SSE_PACKED_SINGLE_INSN_OPTIMAL.
50         (TARGET_CPU_DEFAULT_NAMES): Add bdver1.
51         (processor_type): Add PROCESSOR_BDVER1.
52         * config/i386/i386.md: Add bdver1 as a new cpu attribute to match
53         processor_type in config/i386/i386.h.
54         Add check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit
55         movaps <reg, reg> instead of movapd <reg, reg> when replacing
56         movsd <reg, reg> or movss <reg, reg> for SSE and AVX.
57         Add check for  TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL
58         to emit packed xor instead of packed double/packed integer
59         xor for SSE and AVX when moving a zero value.
60         * config/i386/sse.md: Add check for
61         TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit movaps instead of
62         movapd/movdqa for SSE and AVX.
63         Add check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit packed
64         single logical operations i.e and, or and xor instead of packed double
65         logical operations for SSE and AVX.
66         * config/i386/i386-c.c: 
67         (ix86_target_macros_internal): Add PROCESSOR_BDVER1.
68         * config/i386/driver-i386.c: Turn on -mtune=native for BDVER1.
69         (has_fma4, has_xop): New.
70         * config/i386/i386.c (bdver1_cost): New variable.
71         (m_BDVER1): New macro.
72         (m_AMD_MULTIPLE): Add m_BDVER1.
73         (x86_tune_use_leave, x86_tune_push_memory, x86_tune_unroll_strlen,
74         x86_tune_deep_branch_prediction, x86_tune_use_sahf, x86_tune_movx,
75         x86_tune_use_simode_fiop, x86_tune_promote_qimode,
76         x86_tune_add_esp_8, x86_tune_tune_sub_esp_4, x86_tune_sub_esp_8,
77         x86_tune_integer_dfmode_moves, x86_tune_partial_reg_dependency,
78         x86_tune_sse_partial_reg_dependency,
79         x86_tune_sse_unaligned_load_optimal,
80         x86_tune_sse_unaligned_store_optimal, x86_tune_sse_typeless_stores,
81         x86_tune_memory_mismatch_stall, x86_tune_use_ffreep,
82         x86_tune_inter_unit_moves, x86_tune_inter_unit_conversions,
83         x86_tune_use_bt, x86_tune_pad_returns, x86_tune_slow_imul_imm32_mem,
84         x86_tune_slow_imul_imm8, x86_tune_fuse_cmp_and_branch):
85         Enable/disable for bdver1.
86         (processor_target_table): Add bdver1_cost.
87         (cpu_names): Add bdver1.
88         (override_options): Set up PROCESSOR_BDVER1 for bdver1 entry in
89          processor_alias_table.
90         (ix86_expand_vector_move_misalign): Change.
91         TARGET_SSE_UNALIGNED_MOVE_OPTIMAL to TARGET_SSE_UNALIGNED_LOAD_OPTIMAL.
92         Check for TARGET_SSE_UNALIGNED_STORE_OPTIMAL.
93         Check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit movups instead
94         of movupd/movdqu for SSE and AVX.
95         (ix86_tune_issue_rate): Add PROCESSOR_BDVER1.
96         (ix86_tune_adjust_cost): Add code for bdver1.
97         (standard_sse_constant_opcode): Add check for
98         TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit packed single xor instead
99         of packed double xor for SSE and AVX.
100
101 2010-05-14  Pat Haugen  <pthaugen@us.ibm.com>
102
103         * tree-ssa-loop.prefetch.c (prune_ref_by_group_reuse): Cast abs()
104         result to unsigned.
105
106 2010-05-14  Tristan Gingold  <gingold@adacore.com>
107
108         * toplev.c (default_debug_hooks): Remove this variable.
109         (process_options): Remove assignments to default_debug_hooks.
110
111 2010-05-14  Martin Jambor  <mjambor@suse.cz>
112
113         * langhooks-def.h (LANG_HOOKS_FOLD_OBJ_TYPE_REF): Remove.
114         (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_FOLD_OBJ_TYPE_REF.
115         * langhooks.h (struct lang_hooks_for_decls): Removed field
116         fold_obj_type_ref.
117         * tree.c (free_lang_data): Remove assignment to
118         lang_hooks.fold_obj_type_ref.
119         * tree.def (OBJ_TYPE_REF): Update comment.
120
121 2010-05-14  Richard Guenther  <rguenther@suse.de>
122
123         PR tree-optimization/44124
124         * tree-ssa-sccvn.c (vn_nary_may_trap): Fix invalid memory access.
125
126 2010-05-14  Alan Modra  <amodra@gmail.com>
127
128         PR target/44075
129         * config/rs6000/rs6000.c (struct machine_function): Reorder
130         fields for better packing.  Add lr_save_state.
131         (rs6000_ra_ever_killed): Return lr_save_state if set.
132         (rs6000_emit_eh_reg_restore): Set lr_save_state.
133
134 2010-05-13  Jan Hubicka  <jh@suse.cz>
135
136         * varpool.c (decide_is_variable_needed): Drop code checking
137         TREE_SYMBOL_REFERENCED.
138
139 2010-05-13  Jan Hubicka  <jh@suse.cz>
140
141         * final.c (output_addr_const): Do not call mark_decl_referenced.
142         * cgraphunit.c (process_function_and_variable_attributes): Use
143         mark_needed_node dirrectly.
144         (assemble_thunk): Do not call mark_decl_referenced.
145
146 2010-05-13  Anatoly Sokolov  <aesok@post.ru>
147
148         * targhooks.c (default_mode_dependent_address_p): Cast 'addr' to rtx.
149
150 2010-05-13  Jeff Law  <law@redhat.com>
151
152         * ira-conflicts.c (print_allocno_conflicts): New function broken out
153         from...
154         (print_conflicts): Call print_allocno_conflicts.
155
156 2010-05-13  Jakub Jelinek  <jakub@redhat.com>
157
158         PR debug/44104
159         * dwarf2out.c (modified_type_die): Don't dereference mod_type_die
160         if it is NULL.
161
162 2010-05-13  Kai Tietz  <kai.tietz@onevision.com>
163
164         * config.gcc (i[34567]86-*-mingw* | x86_64-*-mingw*): Choose
165         t-mingw-w64 or t-mingw-w32 for multilib configuration.
166         * config/i386/t-mingw-w32: New.
167         * config/i386/t-mingw-w64 (MULTILIB_OSDIRNAMES): Change lib64 to lib.
168         
169 2010-05-13  Martin Jambor  <mjambor@suse.cz>
170
171         * gimple.c (gimple_fold_obj_type_ref): Removed (a replacement moved to
172         gimple-fold.c).
173         * gimple-fold.c (get_base_binfo_for_type): New function.
174         (gimple_get_relevant_ref_binfo): Likewise.
175         (gimple_fold_obj_type_ref_known_binfo): Likewise.
176         (gimple_fold_obj_type_ref): Likewise.
177         (fold_gimple_call): Simplify condition for folding virtual calls
178         and call gimple_fold_obj_type_ref.
179         * gimple.h (gimple_get_relevant_ref_binfo): Declare.
180         (gimple_fold_obj_type_ref_known_binfo): Likewise.
181
182 2010-05-13  Andreas Schwab  <schwab@linux-m68k.org>
183
184         * config/rs6000/rs6000-protos.h
185         (rs6000_mode_dependent_address_ptr): Change argument to const_rtx.
186         * config/rs6000/rs6000.c (rs6000_mode_dependent_address)
187         (rs6000_debug_mode_dependent_address)
188         (rs6000_mode_dependent_address_ptr): Likewise.
189
190 2010-05-13  Jakub Jelinek  <jakub@redhat.com>
191
192         PR debug/43983
193         * var-tracking.c (track_expr_p): Allow tracking of variables optimized
194         by SRA.
195         * Makefile.in (dwarf2out.o): Depend on $(TREE_FLOW_H).
196         * tree-sra.c (create_access_replacement): Call unshare_expr before
197         passing expr to SET_DECL_DEBUG_EXPR, and remove any SSA_NAMEs from
198         it.
199         * dwarf2out.c: Include tree-flow.h.
200         (struct var_loc_node): Rename var_loc_note field to loc, add comment.
201         (size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
202         Handle DW_OP_bit_piece.
203         (decl_piece_bitsize, decl_piece_varloc_ptr, decl_piece_node,
204         construct_piece_list, adjust_piece_list): New functions.
205         (add_var_loc_to_decl): Handle SRA optimized variables.
206         Adjust for var_loc_note to loc field renaming.
207         (dw_loc_list_1): For WANT_ADDRESS == 2 prefer DECL_MODE of decl
208         in VAR_LOCATION note.
209         (new_loc_descr_op_bit_piece): New function.
210         (dw_sra_loc_expr): New function.
211         (dw_loc_list): Use it.  Don't handle the last range after the
212         loop, handle it inside of the loop.  Adjust for var_loc_note
213         to loc field renaming.
214         (add_location_or_const_value_attribute): Only special case
215         single entry loc lists if loc is NOTE_P.  Adjust for
216         var_loc_note to loc field renaming.
217         (dwarf2out_var_location): Don't set newloc->var_loc_note
218         and newloc->next here.
219
220 2010-05-12  Jan Hubicka  <jh@suse.cz>
221
222         * cgraph.c (cgraph_mark_address_taken_node): No longer imply needed
223         flag.
224         * cgraph.h (cgraph_only_called_directly_p,
225         cgraph_can_remove_if_no_direct_calls_p): test address_taken flag.
226         (cgraph_can_remove_if_no_direct_calls_and_refs_p): New function.
227         * cgraphunit.c (cgraph_mark_functions_to_output): Test address_taken.
228         (assemble
229         * ipa.c (cgraph_remove_unreachable_nodes): Use
230         cgraph_can_remove_if_no_direct_calls_and_refs_p; clear address_taken
231         flags.
232         * tree-inline.c (copy_bb): Check address_taken flag.
233         * tree-profile.c (tree_gen_ic_func_profiler): Check address_taken and
234         externally_visible flag.
235
236 2010-05-12  Jason Merrill  <jason@redhat.com>
237
238         PR bootstrap/44048
239         PR target/44099
240         * dbxout.c (dbxout_type): Remove NULLPTR_TYPE handling.
241         * sdbout.c (plain_type_1): Likewise.
242         * dwarf2out.c (is_base_type): Likewise.
243         (gen_type_die_with_usage): Likewise.  Generate
244         DW_TAG_unspecified_type for any LANG_TYPE.
245
246 2010-05-12  Jan Hubicka  <jh@suse.cz>
247
248         * cgraphbuild.c (build_cgraph_edges, rebuild_cgraph_edges): Build
249         indrect edges too.
250         * cgraph.c (cgraph_create_indirect_edge): Take ecf_flags argument.
251         (cgraph_clone_edge): Update.
252         (cgraph_node_remove_callees): Remove indirect calls too.
253         * cgraph.h (cgraph_indirect_call_info): Add ecf_flags.
254         (cgraph_create_indirect_edge): Update prototype.
255         * ipa-reference.c (has_proper_scope_for_analysis): Rename to
256         is_proper_for_analysis.
257         (add_new_function, visited_nodes, function_insertion_hook_holder,
258         get_local_reference_vars_info, mark_address_taken, mark_address,
259         mark_load, mark_store, check_asm_memory_clobber, check_call,
260         scan_stmt_for_static_refs, scan_initializer_for_static_refs): Remove.
261         (ipa_init): Do not initialize visited_nodes;
262         function_insertion_hook_holder.
263         (analyze_variable): Rewrite.
264         (analyze_function): Rewrite.
265         (copy_local_bitmap): Remove.
266         (duplicate_node_dat): Do not duplicate local info.
267         (generate_summary): Simplify to only walk cgraph.
268         (write_node_summary_p, ipa_reference_write_summary,
269         ipa_reference_read_summary): Remove.
270         (propagate): Do not remove function insertion;
271         generate summary.
272         (pass_ipa_reference): NULLify summary handling fields.
273         * lto-cgraph.c (lto_output_edge): Output ecf_flags.
274         (input_edge): Input ecf_flags.
275         * ipa-prop.c (ipa_note_parm_call): Expect edge to be around.
276         (update_indirect_edges_after_inlining): Ignore edges with unknown
277         param.
278
279 2010-05-12  Sriraman Tallam  <tmsriram@google.com>
280
281         * implicit-zee.c: New file.
282         * tree-pass.h (pass_implicit_zee): Declare.
283         * passes.c (init_optimization_passes): Add zee pass.
284         * common.opt (fzee): New flag.
285         * timevar.def (TV_ZEE): Define.
286         * config/i386/i386.c (optimization_options): Turn on ZEE for level 2
287         and beyond.
288         * Makefile.in (implicit-zee.o): Add new build file.
289
290 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
291             Nathan Froyd  <froydnj@codesourcery.com>
292
293         * c-common.c (sync_resolve_params): Remove write-only variable.
294
295 2010-05-12  Anatoly Sokolov  <aesok@post.ru>
296
297         * target.h (struct gcc_target): Add mode_dependent_address_p field.
298         * target-def.h (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
299         (TARGET_INITIALIZER): Use TARGET_MODE_DEPENDENT_ADDRESS_P.
300         * targhooks.c (default_mode_dependent_address_p): New function.
301         * targhooks.h (default_mode_dependent_address_p): Declare function.
302         * doc/tm.texi (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
303         (GO_IF_MODE_DEPENDENT_ADDRESS): Update.
304         * recog.c: (mode_dependent_address_p): Call mode_dependent_address_p
305         target hook. Change return type to bool.
306         * recog.h: (mode_dependent_address_p): Change return type to bool.
307
308 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
309             Nathan Froyd  <froydnj@codesourcery.com>
310
311         * tree-mudflap.c (build_function_type_0, build_function_type_1,
312         build_function_type_2, build_function_type_3): Remove.
313         (mudflap_init): Use build_function_type_list.
314
315 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
316             Nathan Froyd  <froydnj@codesourcery.com>
317
318         * coverage.c (build_fn_info_value): Call build_constructor instead of
319         build_constructor_from_list.
320         (build_ctr_info_value): Likewise.
321         (build_gcov_info): Likewise.
322
323 2010-05-12  Nathan Froyd  <froydnj@codesourcery.com>
324
325         * tree.c (build_constructor): Compute TREE_CONSTANT for the
326         resultant constructor.
327         (build_constructor_single): Don't set TREE_CONSTANT.
328         (build_constructor_from_list): Don't compute TREE_CONSTANT.
329
330 2010-05-12  Jan Hubicka  <jh@suse.cz>
331
332         * cgraph.h (struct varpool_node): Add aux.
333         * varasm.c (find_decl_and_mark_needed): Force output of varpool nodes.
334         * varpool.c (varpool_remove_node): Do not remove initializer.
335         (varpool_reset_queue): Export.
336         (varpool_finalize_decl): Volatile vars are forced to be output.
337         * lto-symtab.c (lto_varpool_replace_node): Clear out initializer of
338         replaced decl.
339         * ipa.c (enqueue_cgraph_node, enqueue_varpool_node,
340         process_references, varpool_can_remove_if_no_refs): New functions.
341         (cgraph_remove_unreachable_nodes): Handle variables too.
342
343 2010-05-12  H.J. Lu  <hongjiu.lu@intel.com>
344
345         PR target/44088
346         * config/i386/sse.md (*avx_vmmaskcmp<mode>3): New.
347
348 2010-05-12  Jakub Jelinek  <jakub@redhat.com>
349
350         PR middle-end/44085
351         * gimplify.c (enum omp_region_type): Add ORT_UNTIED_TASK,
352         change value of ORT_TASK.
353         (new_omp_context): Handle ORT_UNTIED_TASK like ORT_TASK.
354         (omp_notice_threadprivate_variable): New function.
355         (omp_notice_variable): Call it for threadprivate variables.
356         If enclosing ctx is a task, print enclosing task rather than
357         enclosing parallel.  Handle ORT_UNTIED_TASK like ORT_TASK.
358         (gimplify_omp_task): Pass ORT_UNTIED_TASK instead of ORT_TASK
359         if task has untied clause.
360
361         PR debug/42278
362         * dwarf2out.c (base_type_die): Don't add name attribute here.
363         (modified_type_die): Instead of sizetype use
364         its underlying original type.  If a DW_TAG_base_type doesn't
365         have name added, add __unknown__.
366         (dwarf2out_imported_module_or_decl_1): Don't call base_type_die,
367         always call force_type_die instead.
368
369 2010-05-12  Maxim Kuvyrkov  <maxim@codesourcery.com>
370
371         * targhooks.c (default_stack_protect_guard): Avoid sharing RTL
372         for __stack_chk_guard.
373
374 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
375
376         * c-opts.c (c_common_parse_file): If start_end_main_source_file,
377         don't call start_source_file debug hook here...
378         (finish_options): ... but here, after outputting predefined and
379         command line defines and undefs.
380
381         PR middle-end/44071
382         * cfglayout.c (fixup_reorder_chain): Allow asm goto to have
383         no fallthru edge.
384         * cfgcleanup.c (try_optimize_cfg): When in cfglayout mode
385         optimizing away empty bb with no successors, move over its
386         footer chain to fallthru predecessor.
387         * cfgrtl.c (patch_jump_insn): Update also REG_LABEL_OPERAND.
388         (rtl_split_edge): For asm goto call patch_jump_insn even if
389         splitting fallthru edge.
390
391         PR c++/44059
392         * config/elfos.h (ASM_DECLARE_OBJECT_NAME): Use qnu_unique_object
393         even for DECL_ONE_ONLY DECL_ARTIFICIAL !TREE_READONLY decls.
394         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Likewise.
395         * dwarf2asm.c (dw2_output_indirect_constant_1): Set TREE_READONLY
396         on DW.ref.* decls.
397
398         PR c++/44062
399         * c-parser.c (c_parser_expression): Mark LHS of a comma
400         expression as read if it is a decl, handled component or
401         COMPOUND_EXPR with that on the RHS.
402         * c-typeck.c (c_process_expr_stmt): Mark RHS of COMPOUND_EXPR
403         if it is a decl or handled component.
404
405 2010-05-11  Jan Hubicka  <jh@suse.cz>
406
407         * lto-symtab.c (lto_symtab_free): New function.
408         * lto-streamer.h (lto_symtab_free): Declare.
409
410 2010-05-11  Jan Hubicka  <jh@suse.cz>
411
412         * lto-cgraph.c (reachable_from_other_partition_p): Export; do not assume
413         that if function is needed it is reachable.
414         (lto_output_node): See if it the function is reachable or referenced.
415         (output_cgraph): Update call of lto_output_node.
416         * lto-streamer.h (reachable_from_other_partition_p): Declare.
417
418 2010-05-11  Jan Hubicka  <jh@suse.cz>
419
420         * crtstuff.c (__JCR_LIST__, __DTOR_END__, __JCR_END__, __FRAME_END__):
421         Mark as used.
422
423 2010-05-11  Jan Hubicka  <jh@suse.cz>
424
425         PR tree-optimize/44063
426         * ipa-inline.c (cgraph_edge_badness): Move always inlines to top of
427         queue.
428         (cgraph_decide_inlining_of_small_function): Skip check when disrgarding
429         limits.
430         (estimate_function_body_sizes): Compute sizes even when disregarding.
431
432 2010-05-11  Kai Tietz  <kai.tietz@onevision.com>
433
434         * collect2.c (maybe_lto_object_file): Add x64-coff magic and check.
435
436 2010-05-11  Jan Hubicka  <jh@suse.cz>
437
438         * lto-cgraph.c (output_cgraph): Remove loop adding all varpool nodes
439         into every boundary.
440
441 2010-05-11  Jan Hubicka  <jh@suse.cz>
442
443         * matrix-reorg.c (matrix_reorg): Rebuild edges.
444
445 2010-05-11  Jan Hubicka  <jh@suse.cz>
446
447         * lto-streamer.c (lto_streamer_cache_add_to_node_array,
448         lto_streamer_cache_delete): Put nodes into heap.
449         * lto-streamer.h (struct lto_streamer_cache_d): Nodes vector is in
450         heap.
451
452 2010-05-11  Jan Hubicka  <jh@suse.cz>
453
454         * cgraphbuild.c (cgraph_rebuild_references): New.
455         * cgraph.c (cgraph_mark_reachable_node): Accept references to optimized
456         out extern inlines.
457         * cgraph.h (cgraph_rebuild_references): Declare.
458         * tree-inline.c (tree_function_versioning): Use it.
459         * ipa-struct-reorg.c (do_reorg_for_func): Likewise.
460
461 2010-05-11  Jan Hubicka  <jh@suse.cz>
462
463         * cgraph.c: Include ipa-utils.h
464         (cgraph_create_virtual_clone): Update references.
465         * Makefile.in (cgraph.o): Add dependency at ipa-utils.h
466
467 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
468
469         * tree-ssa-loop-prefetch.c (prune_ref_by_group_reuse): Reset
470         prefetch_before to PREFETCH_ALL if to accesses "meet" beyond
471         cache size.
472
473 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
474
475         * tree-ssa-loop-prefetch.c: Add debug for dropped prefetches.
476
477 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
478
479         * gcc.c (execute): For -### don't quote arguments that
480         contain just alphanumerics and _/-. characters.
481         * doc/invoke.texi: Document that change for -###.
482
483         PR debug/44023
484         * df-problems.c (struct dead_debug): Add to_rescan field.
485         (dead_debug_init): Clear to_rescan field.
486         (dead_debug_finish): Rescan all debug insns in to_rescan
487         bitmap and free the bitmap.
488         (dead_debug_insert_before): Instead of rescanning debug insns
489         immediately queue their rescanning until dead_debug_finish.
490         (df_note_bb_compute): After dead_debug_add do continue instead
491         of break.
492
493 2010-05-10  Jakub Jelinek  <jakub@redhat.com>
494
495         PR debug/44028
496         * haifa-sched.c (schedule_insn): When clearing INSN_VAR_LOCATION_LOC,
497         clear also INSN_REG_USE_LIST.
498
499 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
500
501         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Undef.
502
503 2010-05-10  Jan Hubicka  <jh@suse.cz>
504
505         * lto-stramer-out.c (produce_asm_for_decls): Correct accidentally
506         commited change.
507
508 2010-05-10  Jan Hubicka  <jh@suse.cz>
509
510         * passes.c (ipa_write_summaries_1, ipa_write_optimization_summaries):
511         Allocate encoders.
512         * lto-section-out.c (lto_new_out_decl_state): Do not allocate it here.
513         * lto-streamer.c (lto_streamer_cache_insert_1): Use alloc pool.
514         (lto_streamer_cache_create): Init alloc pool.
515         (lto_streamer_cache_delete): Free alloc pool.
516         * lto-streamer.h: Include alloc pool.
517         (lto_streamer_cache_d): Use alloc pool.
518         * lto-stramer-out.c (produce_asm_for_decls): Delete fn_out_states.
519
520 2010-05-10  Jan Hubicka  <jh@suse.cz>
521
522         * Makefile.in (cgraphbuild.o): Add dependency on except.h.
523         * cgraphbuild.c: Include except.h
524         (record_type_list, record_eh_tables): New function.
525         (build_cgraph_edges, rebuild_cgraph_edges): Use it.
526
527 2010-05-10  Jan Hubicka  <jh@suse.cz>
528
529         * crtstuff.c (force_to_data, __do_global_dtors_aux_fini_array_entry,
530         __frame_dummy_init_array_entry, force_to_data): Attribute as used
531         rather than unused.
532
533 2010-05-10  Michael Matz  <matz@suse.de>
534
535         * tree-ssa-reassoc.c (undistribute_ops_list): Use create_tmp_reg.
536         (can_reassociate_p): Use FLOAT_TYPE_P.
537         * tree-vectorizer.h (vect_is_simple_reduction): Rename to ...
538         (vect_force_simple_reduction): ... this.
539         * tree-parloops.c (gather_scalar_reductions): Use
540         vect_force_simple_reduction.
541         * tree-vect-loop.c (vect_is_simple_reduction_1): Rename from
542         vect_is_simple_reduction, add modify argument, if true rewrite
543         "a-b" into "a+(-b)".
544         (vect_is_simple_reduction, vect_force_simple_reduction): New
545         functions.
546         (vect_analyze_scalar_cycles_1): Use vect_force_simple_reduction.
547
548 2010-05-10  H.J. Lu  <hongjiu.lu@intel.com>
549             Vladimir Makarov  <vmakarov@redhat.com>
550
551         PR rtl-optimization/44012
552         * ira-build.c (remove_unnecessary_allocnos): Nullify
553         regno_allocno_map of the removed allocno.
554
555 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
556
557         * configure.ac (gcc_cv_ld_eh_gc_sections): Redirect objdump errors
558         to /dev/null.
559         * configure: Regenerate.
560
561 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
562
563         * config/sol2.c (solaris_assemble_visibility): Declare decl, vis
564         unused.
565         Define visibility_types, name, type inside HAVE_GAS_HIDDEN.
566         * configure.ac (gcc_cv_ld_hidden): Explain stages of visibility
567         support in Sun ld.
568         * configure: Regenerate.
569
570 2010-05-10  Richard Guenther  <rguenther@suse.de>
571
572         * lto-symtab.c (lto_symtab_entry_marked_p): Make entry
573         marked if the entry identifier is marked.
574
575 2010-05-10  Richard Guenther  <rguenther@suse.de>
576
577         * c-common.c (struct c_common_attributes): Add fnspec attribute.
578         (handle_fnspec_attribute): New function.
579         * gimple.h (gimple_call_return_flags): Declare.
580         (gimple_call_arg_flags): Likewise.
581         * gimple.c (gimple_call_arg_flags): New function.
582         (gimple_call_return_flags): Likewise.
583         * tree.h (EAF_DIRECT, EAF_NOCLOBBER, EAF_NOESCAPE, EAF_UNUSED):
584         New argument flags.
585         (ERF_RETURN_ARG_MASK, ERF_RETURNS_ARG, ERF_NOALIAS): New function
586         return value flags.
587         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Skip unused args.
588         * tree-ssa-structalias.c (make_constraint_from_heapvar): Split
589         main work to ...
590         (make_heapvar_for): ... this new function.
591         (handle_rhs_call): Handle fnspec attribute argument specifiers.
592         (handle_lhs_call): Likewise.
593         (find_func_aliases): Adjust.
594
595 2010-05-10  Richard Guenther  <rguenther@suse.de>
596
597         PR tree-optimization/44050
598         * tree-inline.c (tree_function_versioning): Clone the ipa-pta flag.
599
600 2010-05-10  Wei Guozhi  <carrot@google.com>
601
602         PR target/42879
603         * config/arm/thumb2.md (thumb2_tlobits_cbranch): New insn pattern.
604
605 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
606
607         PR c/10676
608         * c-typeck.c (lookup_field): Take a type directly.  Update
609         recursive calls.
610         (build_component_ref): Update call to lookup_field.
611         (set_init_label): Use lookup_field to find initialized field.
612         Handle returned list of fields like a sequence of designators.
613
614 2010-05-09  Richard Guenther  <rguenther@suse.de>
615
616         PR middle-end/44024
617         * fold-const.c (tree_single_nonzero_warnv_p): Properly
618         handle &FUNCTION_DECL.
619
620 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
621
622         PR c/4784
623         * c-decl.c (detect_field_duplicates_hash): New.  Handle anonymous
624         structures and unions recursively.
625         (detect_field_duplicates): Move duplicate detection with a hash to
626         detect_field_duplicates_hash.  Always use a hash if anonymous
627         structures or unions are present.
628         * doc/extend.texi (Unnamed Fields): Document that duplicate fields
629         give errors.
630
631 2010-05-09  H.J. Lu  <hongjiu.lu@intel.com>
632
633         PR target/44046
634         * config/i386/driver-i386.c (host_detect_local_cpu): Properly
635         detect Atom, Core 2 and Core i7.
636
637 2010-05-09  Richard Guenther  <rguenther@suse.de>
638
639         * gcc.c (store_arg): Handle temporary file deletion for
640         joined arguments.
641
642 2010-05-09  Richard Guenther  <rguenther@suse.de>
643
644         PR middle-end/44043
645         * ipa-inline.c (estimate_function_body_sizes): Return after
646         disregarding inline limits.
647
648 2010-05-09  Richard Guenther  <rguenther@suse.de>
649
650         * gcc.c (store_arg): Revert last change.
651
652 2010-05-08  Sandra Loosemore  <sandra@codesourcery.com>
653
654         PR middle-end/28685
655         * tree-ssa-reassoc.c (eliminate_redundant_comparison): New function.
656         (optimize_ops_list): Call it.
657
658 2010-05-08  Richard Guenther  <rguenther@suse.de>
659
660         PR tree-optimization/44030
661         * tree-ssa-pre.c (eliminate): Copy NECESSARY flag.  Set
662         NECESSARY flag if we propagate from a inserted expression.
663
664 2010-05-08  Eric Botcazou  <ebotcazou@adacore.com>
665
666         * gimple.c (gimple_types_compatible_p) <ARRAY_TYPE>: Treat bounds of
667         domain types as equal if they are both PLACEHOLDER_EXPRs.
668
669 2010-05-08  Richard Guenther  <rguenther@suse.de>
670
671         * lto-wrapper.c (run_gcc): Remove linker output from
672         command line for LTRANS invocation.
673
674 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
675
676         * config.gcc (i[34567]86-*-darwin*, x86_64-*-darwin*): Add
677         lto-macho as lto_binary_reader.
678         * target.h (struct gcc_target): New hooks lto_start and lto_end.
679         * target-def.h (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Define.
680         * cgraphunit.c (ipa_passes): Wrap LTO assembler output generation
681         in lto_start and lto_end calls.
682         (is_elf_or_coff): Rename to maybe_lto_object_file.  Add Mach-O
683         magic numbers.
684         (scan_prog_file): Update is_elf_or_coff call.
685         * doc/tm.text (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Document.
686
687         * collect2.c (main): Fix enum comparison.
688
689         * config/darwin-protos.h (darwin_asm_lto_start, darwin_asm_lto_end):
690         Add prototypes.
691         * darwin9.h (LINK_COMMAND_SPEC): Pass -flto and -fwhopr to the linker.
692         * darwin.h (LINK_COMMAND_SPEC): Likewise.  Define TARGET_ASM_LTO_START
693         and TARGET_ASM_LTO_END.
694         * darwin.c: Include obstack.h and lto-streamer.h.
695         (lto_section_names_offset, lto_section_names_obstack,
696         lto_asm_out_file, lto_asm_out_name, saved_asm_out_file): New static
697         global variables.
698         (LTO_SEGMENT_NAME, LTO_NAMES_SECTION): New defines.
699         (darwin_asm_lto_start): New function.  Redirect output to asm_out_file
700         to a temporary file.
701         (darwin_asm_lto_end): New function.  Restore asm_out_file.
702         (darwin_asm_named_section): For LTO sections, replace the name with
703         the offset of the section name in a string table, and build this
704         table.
705         (darwin_file_start): Initialize global vars for LTO support.
706         (darwin_file_end): If output to asm_out_file was redirected, append it
707         to the proper asm_out_file here.  Add the section names section.
708
709 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
710
711         * c-pragma.c (pending_weak_d, pending_weak): New.
712         (pending_weaks): Change the type to VEC((pending_weak,gc) *.
713         (maybe_apply_pragma_weak, maybe_apply_pending_pragma_weaks,
714         handle_pragma_weak): Update the uses of pending_weaks.
715
716 2010-05-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
717
718         PR documentation/44016
719         * doc/standards.texi (Standards): Link to unversioned
720         cxx0x_status.html page.
721
722 2010-05-07  Iain Sandoe <iains@gcc.gnu.org>
723
724         PR target/43708
725         * config/darwin-c.c (darwin_pragma_unused): Set DECL_READ_P
726         in addition to TREE_USED, to avoid "set but unused" warnings.
727
728 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
729
730         * tree-ssa-loop-prefetch.c (TRIP_COUNT_TO_AHEAD_RATIO): New.
731         (is_loop_prefetching_profitable): Do not insert prefetches
732         when the trip count is not at least TRIP_COUNT_TO_AHEAD_RATIO
733         times the prefetch ahead distance.
734
735 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
736
737         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable):
738         Account for loop unrolling in the insn-to-prefetch ratio heuristic.
739         (loop_prefetch_arrays): Pass to is_loop_prefetching_profitable
740         the unroll_factor.
741
742 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
743
744         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable): Dump
745         a diagnostic info when the insn-to-mem ratio is too small.
746
747 2010-05-07  Richard Guenther <rguenther@suse.de>
748
749         * gcc.c (LINK_COMMAND_SPEC): Provide a resolution file to
750         the linker plugin.
751         (store_arg): Queue temp_filename for deletion instead of
752         the whole argument.
753
754 2010-05-07  Richard Guenther  <rguenther@suse.de>
755
756         * lto-wrapper.c (DUMPBASE_SUFFIX): Define.
757         (run_gcc): Handle LTRANS phase invocation.
758         * collect2.c (maybe_run_lto_and_relink): Do not set WPA_SAVE_LTRANS.
759
760 2010-05-07  Jakub Jelinek  <jakub@redhat.com>
761
762         * tree.h (TREE_ADDRESSABLE): Adjust comment to say that
763         this is also meaningful on PARM_DECLs and RESULT_DECLs.
764
765 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
766
767         * config/mips/iris6.h (LINK_SPEC): Don't pass -init, -fini with -r.
768
769 2010-05-07  Richard Guenther  <rguenther@suse.de>
770
771         PR tree-optimization/44020
772         * tree-ssa-pre.c (execute_pre): Do not remove dead inserted
773         code when PRE is not yet initialized.
774
775 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
776
777         * config/mips/dbxmdebug.h: Remove.
778         * config.gcc (mips-sgi-irix6.5*): Remove mips/dbxmdebug.h.
779
780 2010-05-07  Shujing Zhao  <pearly.zhao@oracle.com>
781
782         * c-typeck.c (build_binary_op): Warn ordered comparison of pointer
783         with null pointer and also warn about ordered comparison of zero with
784         pointer if -Wextra.
785
786 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
787
788         * graphite-blocking.c
789         (pbb_strip_mine_profitable_p): Replace Value with mpz_t.
790         * graphite-clast-to-gimple.c
791         (clast_to_gcc_expression): Same.
792         (precision_for_value): Same.
793         (precision_for_interval): Same.
794         (gcc_type_for_interval): Same.
795         (graphite_create_new_guard): Same.
796         (compute_bounds_for_level): Same.
797         (graphite_create_new_loop_guard): Same.
798         * graphite-interchange.c
799         (build_linearized_memory_access): Same.
800         (pdr_stride_in_loop): Same.
801         (memory_strides_in_loop_1): Same.
802         (memory_strides_in_loop): Same.
803         (extend_scattering): Same.
804         (psct_scattering_dim_for_loop_depth): Same.
805         (pbb_number_of_iterations): Same.
806         * graphite-poly.h
807         (debug_iteration_domains): Same.
808         * graphite-ppl.c
809         (new_Cloog_Domain_from_ppl_Pointset_Powerset): Same.
810         (ppl_set_inhomogeneous_gmp): Same.
811         (ppl_strip_loop): Same.
812         (ppl_lexico_compare_linear_expressions): Same.
813         (ppl_read_polyhedron_matrix): Same.
814         (ppl_max_for_le_pointset): Same.
815         * graphite-ppl.h
816         (ppl_read_polyhedron_matrix): Same.
817         (tree_int_to_gmp): Same.
818         (gmp_cst_to_tree): Same.
819         (ppl_set_inhomogeneous): Same.
820         (ppl_set_inhomogeneous_tree): Same.
821         (ppl_set_coef): Same.
822         (ppl_set_coef_tree): Same.
823         * graphite-sese-to-poly.c
824         (build_pbb_scattering_polyhedrons): Same.
825         (build_scop_scattering): Same.
826         (scan_tree_for_params_right_scev): Same.
827         (scan_tree_for_params): Same.
828         (find_params_in_bb): Same.
829         (find_scop_parameters): Same.
830         (add_upper_bounds_from_estimated_nit): Same.
831         (build_loop_iteration_domains): Same.
832         (add_condition_to_domain): Same.
833         (pdr_add_memory_accesses): Same.
834
835 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
836
837         * graphite-blocking.c (pbb_strip_mine_profitable_p): Resolve
838         CLooG's value_* macros to their respective mpz_* counterparts.
839         * graphite-clast-to-gimple.c (clast_to_gcc_expression): Same.
840         (graphite_create_new_loop_guard): Same.
841         * graphite-interchange.c (build_linearized_memory_access): Same.
842         (pdr_stride_in_loop): Same.
843         (memory_strides_in_loop_1): Same.
844         (1st_interchange_profitable_p): Same.
845         * graphite-poly.c (extend_scattering): Same.
846         (psct_scattering_dim_for_loop_depth): Same.
847         (pbb_number_of_iterations): Same.
848         (pbb_number_of_iterations_at_time): Same.
849         * graphite-poly.h (new_1st_loop): Same.
850         * graphite-ppl.c (cloog_matrix_to_ppl_constraint): Same.
851         (oppose_constraint): Same.
852         (insert_constraint_into_matrix): Same.
853         (ppl_set_inhomogeneous_gmp): Same.
854         (ppl_set_coef_gmp): Same.
855         (ppl_strip_loop): Same.
856         (ppl_lexico_compare_linear_expressions): Same.
857         (ppl_max_for_le_pointset): Same.
858         (ppl_min_for_le_pointset): Same.
859         (ppl_build_realtion): Same.
860         * graphite-ppl.h (gmp_cst_to_tree): Same.
861         (ppl_set_inhomogeneous): Same.
862         (ppl_set_inhomogeneous_tree): Same.
863         (ppl_set_coef): Same.
864         (ppl_set_coef_tree): Same.
865         * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Same.
866         (build_scop_scattering): Same.
867         (add_value_to_dim): Same.
868         (scan_tree_for_params_right_scev): Same.
869         (scan_tree_for_params_int): Same.
870         (scan_tree_for_params): Same.
871         (find_params_in_bb): Same.
872         (find_scop_parameters): Same.
873         (add_upper_bounds_from_estimated_nit): Same.
874         (build_loop_iteration_domains): Same.
875         (create_linear_expr_from_tree): Same.
876         (add_condition_to_domain): Same.
877         (pdr_add_memory_accesses): Same.
878
879 2010-05-06  Magnus Fromreide  <magfr@lysator.liu.se>
880             Jason Merrill  <jason@redhat.com>
881
882         * c-common.c (c_common_reswords): Add nullptr.
883         * c-common.h: Add RID_NULLPTR.  Reorganize C++0x rids.
884         * dwarf2out.c (is_base_type): Handle NULLPTR_TYPE.
885         (gen_type_die_with_usage): Likewise.
886         * dbxout.c (dbxout_type): Likewise.
887         * sdbout.c (plain_type_1): Likewise.
888
889 2010-05-06  Jason Merrill  <jason@redhat.com>
890
891         * gimplify.c (gimplify_expr): Set GS_ALL_DONE when appropriate.
892         Don't change GS_OK to GS_ALL_DONE.  Make sure that all cases set
893         ret appropriately.
894         (gimplify_compound_lval): Return GS_ALL_DONE as appropriate.
895
896         * gimplify.c (gimplify_modify_expr_rhs): Don't return GS_OK for
897         stripping WITH_SIZE_EXPR.
898         (gimplify_expr) [MODIFY_EXPR]: Trust GS_OK even if the rhs didn't
899         change.
900
901 2010-05-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
902
903         * config.gcc: Removed mips-sgi-irix5*, mips-sgi-irix6.[0-4]* from
904         list of obsolete configurations.
905         Disabled check for obsolete configurations.
906         (mips-sgi-irix[56]*): Restrict to mips-sgi-irix6.5*.
907         Removed support for previous versions.
908         * config/mips/iris.h: Removed.
909         * config/mips/iris5.h: Removed.
910         * config/mips/iris6.h: Merged old iris.h contents.
911         (TARGET_IRIX): Removed.
912         (DRIVER_SELF_SPECS): Removed mabi=32.
913         (IDENT_ASM_OP): Removed undef.
914         (STARTFILE_SPEC): Removed mabi=32.
915         (ENDFILE_SPEC): Likewise.
916         (IRIX_SUBTARGET_LINK_SPEC): Likewise.
917         (MACHINE_TYPE): Update for IRIX 6.5.
918         * config/mips/mips.c (mips_build_builtin_va_list): Replaced
919         TARGET_IRIX by TARGET_IRIX6.
920         (mips_file_start): Likewise.
921         (mips_output_external): Remove IRIX 5/6 O32 support.
922         (mips_output_function_prologue): Likewise.
923         * config/mips/mips.h (TARGET_GPWORD): Replaced TARGET_IRIX by
924         TARGET_IRIX6.
925         (TARGET_CPU_CPP_BUILTINS): Likewise.
926         (TARGET_IRIX): Removed.
927         * config/mips/t-iris6 (MULTILIB_OPTIONS): Removed mabi=32.
928         (MULTILIB_DIRNAMES): Removed 32.
929         (MULTILIB_OSDIRNAMES): Removed ../lib.
930         * doc/install.texi (Prerequisites): Don't reference IRIX before 6.5.
931         (Specific, mips-sgi-irix5): Document removal.
932         (Specific, mips-sgi-irix6): Document IRIX 6.[0-4] and O32 ABI removal.
933         Remove references to older IRIX 6 releases and the O32 ABI.
934
935 2010-05-06  Jakub Jelinek  <jakub@redhat.com>
936
937         PR bootstrap/43994
938         * df-problems.c (dead_debug_insert_before): Use *DF_REF_REAL_LOC
939         instead of DF_REF_REAL_REG.
940
941 2010-05-06  Dave Korn  <dave.korn.cygwin@gmail.com>
942
943         PR target/43888
944         * config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
945         handling to still return true for x64 targets.
946
947 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
948
949         * config/m68k/uclinux.h (LIB_SPEC): Bring in sync with config/linux.h.
950
951 2010-05-06  Jan Hubicka  <jh@suse.cz>
952
953         PR tree-optimization/43791
954         * ipa-inline.c (update_caller_keys): Remove bogus
955         disregard_inline_limits check.
956
957 2010-05-06  Michael Matz  <matz@suse.de>
958
959         PR tree-optimization/43984
960         * tree-ssa-pre.c (inserted_phi_names): Remove.
961         (inserted_exprs): Change to bitmap.
962         (create_expression_by_pieces): Set bits, don't append to vector.
963         (insert_into_preds_of_block): Don't handle inserted_phi_names.
964         (eliminate): Don't look at inserted_phi_names, remove deleted
965         insns from inserted_exprs.
966         (remove_dead_inserted_code): Adjust to use bitmaps instead of vectors.
967         (init_pre, fini_pre): Allocate and free bitmaps.
968         (execute_pre): Insert insns on edges before elimination.
969
970 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
971
972         * tree.c (initializer_zerop): Handle STRING_CST.
973
974 2010-05-06  Manuel López-Ibáñez  <manu@gcc.gnu.org>
975
976         PR 40989
977         * doc/invoke.texi (Wimplicit): Document as C only.
978         * opts.c (common_handle_option): Add argument kind.
979         (handle_option): Rename as read_cmdline_option. Factor out code to...
980         (handle_option): ... here. New.
981         (handle_options): Rename as read_cmdline_options.
982         (decode_options): Update call.
983         (set_option): Use option index instead of option pointer. Classify
984         diagnostics correctly.
985         (enable_warning_as_error): Call handle_option.
986         * opts.h (set_option): Update declaration.
987         (handle_option): Declare.
988         * langhooks.h (struct lang_hooks): Add argument kind to handle_option.
989         * c.opt (Wimplicit,Wimplicit-int): Initialize to -1.
990         * c-opts.c (set_Wimplicit): Delete.
991         (c_family_lang_mask): New static constant.
992         (c_common_handle_option): Add argument kind. Use handle_option
993         instead of set_Wimplicit.
994         (c_common_post_options): warn_implicit and warn_implicit_int
995         are disabled by default.
996         * c-common.c (warn_implicit): Do not define here.
997         * c-common.h (warn_implicit): Do not declare here.
998         (c_common_handle_option): Update declaration.
999         * lto-opts.c (lto_reissue_options): Update call to set_option.
1000
1001 2010-05-06  Richard Guenther  <rguenther@suse.de>
1002
1003         PR tree-optimization/43571
1004         * domwalk.c (walk_dominator_tree): Walk the dominator
1005         sons in more optimal order.
1006
1007 2010-05-06  Richard Guenther  <rguenther@suse.de>
1008
1009         PR tree-optimization/43934
1010         * tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
1011         (stmt_cost): Likewise.
1012         (extract_true_false_args_from_phi): New helper.
1013         (determine_max_movement): For PHI nodes verify we can hoist them
1014         and compute their cost.
1015         (determine_invariantness_stmt): Handle PHI nodes.
1016         (move_computations_stmt): Likewise.  Hoist PHI nodes in
1017         if-converted form using COND_EXPRs.
1018         (move_computations): Return TODO_cleanup_cfg if we hoisted PHI nodes.
1019         (tree_ssa_lim): Likewise.
1020         * tree-flow.h (tree_ssa_lim): Adjust prototype.
1021         * tree-ssa-loop.c (tree_ssa_loop_im): Return todo.
1022
1023 2010-05-06  Richard Guenther  <rguenther@suse.de>
1024
1025         PR tree-optimization/43987
1026         * tree-ssa-structalias.c (could_have_pointers): For possibly
1027         address-taken variables force pointers to be recorded.
1028         (create_variable_info_for_1): Likewise.
1029         (push_fields_onto_fieldstack): Pass in wheter all fields
1030         must have pointers.
1031         (find_func_aliases): Query types instead of vars whether
1032         they contain pointers where appropriate.
1033
1034 2010-05-06  Jan Hubicka  <jh@suse.cz>
1035
1036         * cgraphbuild.c (record_reference_ctx): Add varpool_node.
1037         (record_reference, mark_address, mark_load, mark_store): Record
1038         references.
1039         (record_references_in_initializer): Update call of record_references.
1040         (rebuild_cgraph_edges): Remove all references before rebuiding.
1041         * cgraph.c (cgraph_create_node): Clear ref list.
1042         (cgraph_remove_node): Remove references.
1043         (dump_cgraph_node): Dump references.
1044         (cgraph_clone_node): Clone references.
1045         * cgraph.h: Include ipa-ref.h and ipa-ref-inline.h
1046         (struct cgraph_node, varpool_node): Add ref_lst.
1047         * ipa-ref.c: New file.
1048         * ipa-ref.h: New file.
1049         * ipa-ref-inline.h: New file.
1050         * lto-cgraph.c (output_varpool): Take cgrag node set argument.
1051         (referenced_from_other_partition_p): New function.
1052         (lto_output_varpool_node): Take set arugment; call
1053         referenced_from_other_partition.
1054         (lto_output_ref): New.
1055         (add_references): New.
1056         (output_refs): New.
1057         (output_cgraph): Compute boundary based on references; output refs.
1058         (output_varpool): Accept cgraph_node_set argument.
1059         (input_ref): New.
1060         (input_refs): New.
1061         (input_cgraph): Call input_refs.
1062         * lto-section-in.c (lto_section_name): Add refs.
1063         * Makefile.in: (cgraph.h): Include ipa-ref.h and ipa-ref-inline.h
1064         (ipa-ref.o): New file.
1065         * varpool.c (varpool_node): Clear ipa ref list.
1066         (varpool_remove_node): Remove references.
1067         (dump_varpool_node): Dump references.
1068         (varpool_assemble_decl): Only compile finalized ones.
1069         (varpool_extra_name_alias): Initialize ref list.
1070         * lto-streamer.c (lto-get_section_name): Add .refs section.
1071         * lto-streamer.h (lto_section_type): Add LTO_section_refs.
1072         (referenced_from_other_partition_p): Declared.
1073
1074 2010-05-06  Ira Rosen  <irar@il.ibm.com>
1075
1076         PR tree-optimization/43901
1077         * tree-vect-stmts.c (vectorizable_call): Assert that vector
1078         type is not NULL if it's transformation phase, and return
1079         FALSE if it's analysis.
1080         (vectorizable_conversion, vectorizable_operation,
1081         vectorizable_type_demotion, vectorizable_type_promotion): Likewise.
1082
1083 2010-05-05  Andrew Pinski  <andrew.pinski@caviumnetworks.com>
1084
1085         * config/mips/mips.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
1086         Delete.
1087         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
1088         New define.
1089         * config/mips/mips-protos.h
1090         (mips_small_register_classes_for_mode_p): Delete prototype.
1091
1092 2010-05-06  Bernd Schmidt  <bernds@codesourcery.com>
1093
1094         * config/arm/arm.h (MAX_LDM_STM_OPS): New macro.
1095         * config/arm/arm.c (multiple_operation_profitable_p,
1096         compute_offset_order): New static functions.
1097         (load_multiple_sequence, store_multiple_sequence): Use them.
1098         Replace constant 4 with MAX_LDM_STM_OPS.  Compute order[0] from
1099         memory offsets, not register numbers.
1100         (emit_ldm_seq, emit_stm_seq): Replace constant 4 with MAX_LDM_STM_OPS.
1101
1102 2010-05-05  Steven Bosscher  <steven@gcc.gnu.org>
1103
1104         * stor-layout.c (pending_sizes): Change the type to VEC(tree,gc) *.
1105         (get_pending_sizes, put_pending_size, put_pending_sizes):
1106         Update the uses of pending_sizes.
1107         * c-decl.c (store_parm_decls): Likewise.
1108         * c-tree.h (struct c_arg_info): Likewise.
1109         * tree.h: Update the prototype for get_pending_sizes and
1110         put_pending_sizes.
1111
1112 2010-05-05  Jason Merrill  <jason@redhat.com>
1113
1114         PR debug/43370
1115         * c-common.c (handle_aligned_attribute): Respect
1116         ATTR_FLAG_TYPE_IN_PLACE.
1117
1118         PR testsuite/43758
1119         * target.h (struct gcc_target): Add attribute_takes_identifier_p.
1120         * target_def.h (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
1121         (TARGET_INITIALIZER): Use it.
1122         * c-common.c (attribute_takes_identifier_p): Call it.
1123         * c-common.h: Update prototype.
1124         * config/rs6000/rs6000.c (rs6000_attribute_takes_identifier_p): New.
1125         (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
1126
1127 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
1128
1129         PR debug/43950
1130         * dwarf2out.c (gen_compile_unit_die): Add DW_AT_identifier_case
1131         DW_ID_down_case for Fortran compilation units.
1132
1133 2010-05-05  Jan Hubicka  <jh@suse.cz>
1134
1135         * lto-cgraph.c (lto_output_varpool_node, input_varpool_node): Correctly
1136         handle aliases.
1137
1138 2010-05-05  Eric Botcazou  <ebotcazou@adacore.com>
1139
1140         * gimplify.c (gimplify_return_expr): Gimplify the size expressions of
1141         a variable-sized RESULT_DECL.
1142
1143 2010-05-05  Maxim Kuvyrkov  <maxim@codesourcery.com>
1144
1145         * doc/invoke.texi (-mfix-cortex-m3-ldrd): Move from ARC section to ARM.
1146
1147 2010-05-05  Jason Merrill  <jason@redhat.com>
1148
1149         PR c++/43787
1150         * gimplify.c (gimplify_expr): Keep working if gimplify_modify_expr
1151         returns GS_OK.
1152         (gimplify_modify_expr_rhs): Return GS_OK if anything changed.
1153
1154 2010-05-05  Alexandre Oliva  <aoliva@redhat.com>
1155             Jakub Jelinek  <jakub@redhat.com>
1156
1157         PR debug/43478
1158         * df-problems.c (struct dead_debug_use, struct dead_debug): New.
1159         (dead_debug_init, dead_debug_finish): New functions.
1160         (dead_debug_add, dead_debug_insert_before): Likewise.
1161         (df_note_bb_compute): Initialize a dead_debug object, add dead
1162         debug uses to it, insert debug bind insns before death insns,
1163         reset debug insns that refer to pending uses at the end.
1164         * rtl.h (make_debug_expr_from_rtl): New prototype.
1165         * varasm.c (make_debug_expr_from_rtl): New function.
1166
1167 2010-05-05  Jan Hubicka  <jh@suse.cz>
1168
1169         * lto-cgraph.c (output_varpool): Forward declare; work on encoder.
1170         (lto_varpool_encoder_new, lto_varpool_encoder_delete,
1171         lto_varpool_encoder_encode, lto_varpool_encoder_lookup,
1172         lto_varpool_encoder_deref, lto_varpool_encoder_size,
1173         lto_varpool_encoder_encode_initializer_p,
1174         lto_set_varpool_encoder_encode_initializer): New functions.
1175         (lto_output_cgraph): Take vset parameter too; compute varpool encoder;
1176         call output_varpool.
1177         (input_varpool_node): Do not always set analyzed.
1178         (input_cgraph_1): Return vector of cgraph nodes.
1179         (input_varpool_1): Return vector of varpools.
1180         (input_cgraph): Free the vectors.
1181         * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
1182         output only initializers needed.
1183         (lto_output): Only call output_cgraph.
1184         (produce_asm_for_decls): Call lto_varpool_encoder_delete.
1185         * lto-section-out.c (lto_new_out_decl_state): Initialize
1186         state->varpool_node_encoder.
1187         * lto-streamer.h (lto_varpool_encoder_d): New.
1188         (lto_out_decl_state, lto_file_decl_data): Add varpool_node_encoder.
1189         (lto_cgraph_encoder_delete, output_cgraph): Update prototype.
1190         (lto_varpool_encoder_deref, lto_varpool_encoder_lookup,
1191         lto_varpool_encoder_encode, lto_varpool_encoder_delete,
1192         lto_varpool_encoder_encode_initializer_p, lto_varpool_encoder_new):
1193         Declare.
1194         (output_varpool, input_varpool): Remove declarations.
1195
1196 2010-05-05  Jan Hubicka  <jh@suse.cz>
1197
1198         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Alias of variable
1199         with body can prevail.
1200
1201 2010-05-05  Jan Hubicka  <jh@suse.cz>
1202
1203         * lto-symtab.c (lto_symtab_merge_decls_1): Prefer declarations with
1204         size.
1205
1206 2010-05-05  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
1207
1208         * Makefile.in (build/gengtype.o): Add $(HASHTAB_H) to dependencies.
1209
1210         * gengtype.h (erro_at_line): Constify pos argument.
1211
1212         * gengtype.c: Include hashtab.h.
1213         (enum gc_used): Document GC_MAYBE_POINTED_TO.
1214         (error_at_line): Constify pos argument.
1215         (do_typedef): Initialize p->opt field.
1216         (get_file_gtfilename): Fix comment typo.
1217         (struct walk_type_data): Constify line field.
1218         (get_output_file_for_structure): New function.
1219         (write_local_func_for_structure): Constify orig_s argument.
1220         Use get_output_file_for_structure.
1221         (write_func_for_structure): Use get_output_file_for_structure.
1222         (INDENT): New define.
1223         (dump_pair, dump_type, dump_type_list, dump_typekind)
1224         (dump_gc_used, dump_options, dump_fileloc, dump_type_u_s)
1225         (dump_type_u_a, dump_type_u_param_struct, dump_everything): New
1226         functions.
1227         (seen_types): New variable.
1228         (main): New variable do_dump.  Process "-d" command line option.
1229         Call dump_everything if dump requested.
1230
1231 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
1232
1233         * var-tracking.c (var_debug_decl): Save DECL_DEBUG_EXPR value
1234         in a temporary instead of invoking the macro multiple times.
1235         (track_expr_p): Likewise.
1236
1237 2010-05-04  Neil Vachharajani <nvachhar@google.com>
1238
1239         * doc/invoke.texi (-Wcoverage-mismatch): Updated documentation as
1240         per new semantics.
1241         * opts.c (decode_options): Enable -Werror=coverage-mismatch.
1242         * coverage.c (get_coverage_counts): Always emit a warning.  Adjust
1243         conditions for printing notes.
1244         * common.opt (-Wcoverage-mismatch): Allow negative, default to
1245         true, update documentation.
1246         * Makefile.in (coverage.o): Add dependence on DIAGNOSTIC_H and intl.h.
1247
1248 2010-05-04  Jakub Jelinek  <jakub@redhat.com>
1249
1250         PR c/43981
1251         * c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
1252         on dimen.
1253
1254 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
1255
1256         PR target/43799
1257         * config/i386/i386.md (sse_prologue_save): Clobber CC register.
1258         (*sse_prologue_save_insn1): Likewise.
1259         (SSE prologue save splitter): Likewise.
1260
1261 2010-05-04  Eric Botcazou  <ebotcazou@adacore.com>
1262
1263         * tree.c (free_lang_data_in_one_sizepos): New inline function.
1264         (free_lang_data_in_type): Call it on TYPE_{MIN|MAX}_VALUE of numerical
1265         types.  Call it on TYPE_SIZE and TYPE_SIZE_UNIT of all types.
1266         (free_lang_data_in_decl): Call it on DECL_SIZE and DECL_SIZE_UNIT of
1267         all decls.  Call it on DECL_FIELD_OFFSET of fields.
1268         (find_decls_types_r): Follow DECL_VALUE_EXPR.
1269         (iterative_hash_expr) <PLACEHOLDER_EXPR>: New case.
1270
1271 2010-05-04  Martin Jambor  <mjambor@suse.cz>
1272
1273         * tree-sra.c (build_access_from_expr_1): The first parameter type
1274         changed to simple tree.
1275         (build_access_from_expr): Likewise, gsi parameter was eliminated.
1276         (scan_assign_result): Renamed to assignment_mod_result, enum elements
1277         renamed as well.
1278         (build_accesses_from_assign): Removed all parameters except for a
1279         simple gimple statement.  Now returns a simple bool.
1280         (scan_function): All non-analysis parts moved to separate functions
1281         sra_modify_function_body and ipa_sra_modify_function_body.  Removed all
1282         parameters and updated both callers.
1283         (sra_modify_expr): Removed parameter data.
1284         (sra_modify_function_body): New function.
1285         (perform_intra_sra): Call sra_modify_function_body to modify the
1286         function body.
1287         (replace_removed_params_ssa_names): Parameter data changed into
1288         adjustments vector.
1289         (sra_ipa_modify_expr): Likewise.  Also removed unused parameter gsi and
1290         changed the parameter dont_convert to convert with the opposite
1291         meaning.
1292         (sra_ipa_modify_assign): Parameter data changed into adjustments
1293         vector, return value changed to bool.
1294         (ipa_sra_modify_function_body): New function.
1295         (sra_ipa_reset_debug_stmts): Updated a comment.
1296         (modify_function): Use ipa_sra_modify_function_body to modify function
1297         body.
1298
1299 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
1300
1301         PR middle-end/43671
1302         * alias.c (true_dependence): Handle the same VALUE in x and mem.
1303         (canon_true_dependence): Likewise.
1304         (write_dependence_p): Likewise.
1305
1306 2010-05-04  Jan Hubicka  <jh@suse.cz>
1307
1308         * Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h
1309         * cgraphbuild.c: Include ipa-utils.h
1310         (record_reference_ctx): New struct.
1311         (record_reference): Simplify to work on initializers; not statements.
1312         (mark_address, mark_load, mark_store): New.
1313         (build_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
1314         walk PHI nodes too.
1315         (record_references_in_initializer): Update use of record_reference.
1316         (rebuild_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
1317         walk PHI nodes too.
1318
1319 2010-05-04  Jan Hubicka  <jh@suse.cz>
1320
1321         * lto-symtab.c (lto_cgraph_replace_node): Do not remove edges;
1322         node will be removed anyway.
1323         (lto_varpool_replace_node): Allow also unanalyzed nodes;
1324         relink aliases of node into prevailing node.
1325         * varpool.c (varpool_remove_node): Remove aliases properly;
1326         when removing node, remove all its aliases too; remove DECL_INITIAL
1327         of removed node; ggc_free the varpool node.
1328
1329 2010-05-04  Richard Guenther  <rguenther@suse.de>
1330
1331         PR tree-optimization/43879
1332         * tree-ssa-structalias.c (alias_get_name): Use
1333         DECL_ASSEMBLER_NAME if available.
1334         (create_function_info_for): Return the varinfo node.
1335         (ipa_pta_execute): Associate same-body aliases and extra names
1336         with their origin nodes varinfo.  Dump DECL_ASSEMBLER_NAME.
1337
1338 2010-05-04  Kaz Kojima  <kkojima@gcc.gnu.org>
1339
1340         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Remove static.
1341
1342 2010-05-04  Mikael Pettersson  <mikpe@it.uu.se>
1343
1344         PR bootstrap/43964
1345         * ira-color.c (assign_hard_reg): Declare rclass and add_cost
1346         only if HONOR_REG_ALLOC_ORDER is not defined.
1347
1348 2010-05-04  Richard Guenther  <rguenther@suse.de>
1349
1350         PR tree-optimization/43949
1351         * tree-vrp.c (extract_range_from_binary_expr): Only handle
1352         TRUNC_MOD_EXPR.
1353
1354 2010-04-26  Jason Merrill  <jason@redhat.com>
1355
1356         * c.opt (-fstrict-enums): New.
1357         * doc/invoke.texi (C++ Dialect Options): Document -fstrict-enums.
1358
1359 2010-05-03  David Ung <davidu@mips.com>
1360             James E. Wilson  <wilson@codesourcery.com>
1361
1362         * config/mips/mips.c (mips_output_division): If GENERATE_DIVIDE_TRAPS,
1363         emit the trap instruction before the divide for TUNE_74K.
1364
1365 2010-05-03  Steven Bosscher  <steven@gcc.gnu.org>
1366
1367         * doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.
1368         (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
1369         based on the above, for new target hook.
1370
1371         * hooks.c (hook_bool_mode_true): New generic hook.
1372         * hooks.h (hook_bool_mode_true): Add prototype.
1373
1374         * target.h (struct gcc_target): Add small_register_classes_for_mode_p
1375         target hook.
1376         * target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
1377         target hook, set to hook_bool_mode_false.
1378         * regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
1379         * reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
1380         with targetm.small_register_classes_for_mode_p.
1381         (find_reusable_reload): Likewise.
1382         (combine_reloads): Likewise.
1383         * reload1.c (reload_as_needed): Likewise.
1384         * cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
1385         * ifcvt.c (noce_process_if_block, check_cond_move_block,
1386         dead_or_predicable): Likewise.
1387         * regmove.c (optimize_reg_copy_1): Likewise.
1388         * calls.c (prepare_call_address): Likewise.
1389         (precompute_register_parameters): Likewise.
1390
1391         * config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
1392         hook definition.
1393         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
1394         implementation of the hook that considers all register classes
1395         small except for SH64.
1396         (sh_override_options): Use the new hook.
1397         * config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
1398         Add prototype.
1399
1400         * config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
1401         hook definition.
1402         * config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
1403         implementation of the hook that considers all register classes
1404         small for THUMB1.
1405         * config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
1406         Add prototype.
1407
1408         * config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
1409         hook definition.
1410         * config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
1411         implementation of the hook that considers all register classes
1412         small for MIPS16.
1413         * config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
1414         Add prototype.
1415
1416         * config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
1417         hook definition.
1418         * config/m32c/m32c.h: Likewise.
1419         * config/pdp11/pdp11.h: Likewise.
1420         * config/avr/avr.h: Likewise.
1421         * config/xtensa/xtensa.h: Likewise.
1422         * config/m68hc11/m68hc11.h: Likewise.
1423         * config/mn10300/mn10300.h: Likewise.
1424         * config/mcore/mcore.h: Likewise.
1425         * config/h8300/h8300.h: Likewise.
1426         * config/bfin/bfin.h: Likewise.
1427
1428         * config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
1429         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.
1430
1431 2010-05-03  Anatoly Sokolov  <aesok@post.ru>
1432
1433         * double-int.h (tree_to_double_int): Remove macro.
1434         (double_int_to_tree, double_int_fits_to_tree_p): Move prototypes ...
1435         * tree.h (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1436         (tree_to_double_int): New function.
1437         * double-int.c (double_int_to_tree, double_int_fits_to_tree_p):
1438         Move ...
1439         * tree.c (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1440
1441 2010-05-03  Richard Guenther  <rguenther@suse.de>
1442
1443         PR tree-optimization/43971
1444         * tree-ssa-structalias.c (get_constraint_for_1): Fix
1445         constraints in the !flag_delete_null_pointer_checks case.
1446
1447 2010-05-03  Jakub Jelinek  <jakub@redhat.com>
1448
1449         PR debug/43972
1450         * config/i386/i386.c (ix86_delegitimize_address): Make sure the
1451         result mode matches original rtl mode.
1452
1453 2010-05-03  Dave Korn  <dave.korn.cygwin@gmail.com>
1454
1455         PR target/43888
1456         * config/i386/winnt.c (i386_pe_binds_local_p): Handle weak decls.
1457
1458 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1459
1460         * config/i386/i386.c (ix86_target_string): Output 'flags', not 'isa',
1461         when processing flag options.
1462
1463 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1464
1465         * gcov-iov.c (main): Change format string placeholder
1466         from %#08x to 0x%08x.
1467         * genchecksum.c (dosum): Change format string placeholder
1468         from %#02x to 0x%02x.
1469
1470 2010-05-02  Richard Guenther  <rguenther@suse.de>
1471
1472         PR tree-optimization/43879
1473         * tree-tailcall.c (find_tail_calls): Clobbers also prevent tail calls.
1474
1475 2010-05-02  Bruno Haible  <bruno@clisp.org>
1476
1477         * doc/extend.texi (Function Attributes): Fix a typo.
1478
1479 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1480
1481         Revert:
1482         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Change format string
1483         placeholder from 0x%x to %#x.
1484         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
1485         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
1486         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
1487         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
1488         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
1489         * config/i386/i386.c (ix86_target_string): Ditto.
1490         * config/i386/i386.c (output_pic_addr_const): Ditto.
1491         (print_operand): Ditto.
1492
1493 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1494
1495         * vmsdbgout.c (ASM_OUTPUT_DEBUG_DATA1): Change format string
1496         placeholder from 0x%x to %#x.
1497         (ASM_OUTPUT_DEBUG_DATA1): Ditto.
1498         (ASM_OUTPUT_DEBUG_DATA4): Ditto.
1499         (ASM_OUTPUT_DEBUG_DATA): Ditto.
1500         (ASM_OUTPUT_DEBUG_ADDR_DATA): Ditto.
1501         (ASM_OUTPUT_DEBUG_DATA8): Ditto.
1502         * optc-gen.awk: Ditto.
1503         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Ditto.
1504         (HOST_WIDE_INT_PRINT_HEX): Ditto.
1505         (HOST_WIDEST_INT_PRINT_HEX): Ditto.
1506         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
1507
1508 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
1509
1510         * target.h (struct calls): Add function_value_regno_p field.
1511         * target-def.h (TARGET_FUNCTION_VALUE_REGNO_P): Define.
1512         (TARGET_INITIALIZER): Use TARGET_FUNCTION_VALUE_REGNO_P.
1513         * targhooks.c (default_function_value_regno_p): New function.
1514         * targhooks.h (default_function_value_regno_p): Declare function.
1515         * rtlanal.c (keep_with_call_p): Use function_value_regno_p hook.
1516         * builtins.c. (apply_result_size): (Ditto.).
1517         * combine.c. (likely_spilled_retval_p): (Ditto.).
1518         * mode-switching.c. Include 'target.h'.
1519         (create_pre_exit): Use function_value_regno_p hook.
1520         * Makefile.in (mode-switching.o): Add dependency on TARGET_H.
1521         * doc/tm.texi (FUNCTION_VALUE_REGNO_P,
1522         TARGET_FUNCTION_VALUE_REGNO_P): Revise documentation.
1523
1524         * config/i386/i386.h (TARGET_FUNCTION_VALUE_REGNO_P): Remove macro.
1525         * config/i386/i386.c (TARGET_FUNCTION_VALUE_REGNO_P): Define macro.
1526         (ix86_function_value_regno_p): Declare as static, change argument
1527         type to const unsigned int.
1528         * config/i386/i386-protos.h (ix86_function_value_regno_p): Remove.
1529
1530 2010-05-01  Richard Guenther  <rguenther@suse.de>
1531
1532         PR tree-optimization/43949
1533         * tree-vrp.c (ssa_name_nonnegative_p): Return true for unsigned
1534         types.
1535         (extract_range_from_binary_expr): Handle *_MOD_EXPR.
1536
1537 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
1538
1539         * rtl.h (CONST_DOUBLE_P): Define.
1540         (rtx_to_double_int): Declare.
1541         * emit-rtl.c (rtx_to_double_int): New function.
1542         * dwarf2out.c (insert_double): New function.
1543         (loc_descriptor, add_const_value_attribute): Clean up, use
1544         rtx_to_double_int and insert_double functions.
1545
1546 2010-05-01  Jonathan Wakely  <jwakely.gcc@gmail.com>
1547
1548         * doc/extend.texi (Inline): Add missing return keyword to examples.
1549         (Function Attributes, Variable Attributes, Pragmas): Hyphenate
1550         "command-line".
1551
1552 2010-04-30  Eric Botcazou  <ebotcazou@adacore.com>
1553
1554         * tree-ssa-loop-ivopts.c (may_be_unaligned_p): Check the alignment of
1555         the variable part of the offset as well.  Use highest_pow2_factor for
1556         all alignment checks.
1557
1558 2010-04-30  Richard Guenther  <rguenther@suse.de>
1559
1560         PR tree-optimization/43879
1561         * tree-ssa-structalias.c (type_could_have_pointers): Functions
1562         can have pointers.
1563
1564 2010-04-30  Jan Hubicka  <jh@suse.cz>
1565
1566         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Chose var with
1567         varpool.
1568         (lto_symtab_merge_decls_1): Remove logic looking for an initializer.
1569
1570 2010-04-30  Jan Hubicka  <jh@suse.cz>
1571
1572         * cgraph.h (cgraph_node_set_nonempty_p, varpool_node_set_nonempty_p):
1573         New.
1574         * lto-cgraph.c (input_cgraph): Remove call to lto_mark_file_for_ltrans.
1575         * lto-streamer.h (lto_file_decl_data): Remove needs_ltrans_p.
1576         (lto_file_needs_ltrans_p, lto_mark_file_for_ltrans,
1577         cgraph_node_set_needs_ltrans_p): Remove.
1578
1579 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
1580
1581         * sdbout.c: Include vec.h, do not include varray.h.
1582         (deferred_global_decls, sdbout_global_decl,
1583         sdbout_finish, sdbout_init): Use VEC instead of VARRAY.
1584         * toplev.c: Do not include varray.h.
1585         (dump_memory_report): Do not dump VARRAY statistics.
1586         * gengtype.c (open_base_file): Ignore varray.h.
1587         * Makefile.in: Update for abovementioned changes.
1588         Remove all traces of varray.c and varray.h.
1589         * varray.c: Remove file.
1590         * varray.h: Remove file.
1591
1592 2010-04-30  Jan Hubicka  <jh@suse.cz>
1593
1594         * lto-cgraph.c (lto_output_varpool_node): Always output constant pool
1595         references.
1596
1597 2010-04-30  Jan Hubicka  <jh@suse.cz>
1598
1599         * tree-profile.c (tree_init_ic_make_global_vars): Mark new decls as
1600         needed.
1601
1602 2010-04-30  Richard Guenther  <rguenther@suse.de>
1603
1604         * tree-ssa-structalias.c (get_constraint_for_1): Generate
1605         constraints for CONSTRUCTOR.
1606
1607 2010-04-30  Richard Guenther  <rguenther@suse.de>
1608
1609         PR lto/43946
1610         * passes.c (init_optimization_passes): Move pass_ipa_free_lang_data
1611         first after all lowering passes.
1612
1613 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
1614
1615         * toplev.c: Include varray.h for statistics dumping.
1616         * tree.h: Do not declare varray_head_tag.
1617         * tree-into-ssa.c, tree-ssa-uninit.c, tree-phinodes.c, omega.c,
1618         regs.h, lto-cgraph.c, tree-ssa-loop-ivopts.c, tree-nomudflap.c,
1619         c-objc-common.c, lto-streamer-out.c, tree-ssa-propagate.c,
1620         gimple-low.c, c-semantics.c, dwarf2out.c, lto-streamer-in.c,
1621         lto-section-in.c, alias.c, tree-if-conv.c, gimplify.c, ggc-zone.c,
1622         tree-ssa.c, tree-ssa-loop-prefetch.c, integrate.h, c-gimplify.c,
1623         c-common.c, c-common.h, reg-stack.c, basic-block.h,
1624         tree-ssa-structalias.c, lto-section-out.c, tree-ssanames.c: Do not
1625         include varray.h.
1626         * Makefile.in: Update for abovementioned changes.
1627
1628 2010-04-30  Jakub Jelinek  <jakub@redhat.com>
1629
1630         PR debug/43942
1631         * tree.c (auto_var_in_fn_p): Return false for DECL_EXTERNAL vars.
1632
1633 2010-04-30  Hariharan Sandanagobalane  <hariharan@picochip.com>
1634
1635         * config/picochip/picochip.c (picochip_legitimize_address): Define.
1636         Use this function to do machine-specific conversion.
1637         (picochip_legitimize_reload_address): Likewise.
1638         (picochip_legitimate_address_p): Check valid base register only if
1639         strict.
1640         (picochip_check_conditional_copy): Check for modw only if opnd is
1641         register.
1642         * config/picochip/picochip.h (LEGITIMIZE_RELOAD_ADDRESS): Use this
1643         to call the function in c.
1644         * config/picochip/picochip-protos.h
1645         (picochip_legitimize_reload_address): Define.
1646         * config/picochip/picochip.md (supported_compare1): Define.
1647
1648 2010-04-30  Jan Hubicka  <jh@suse.cz>
1649
1650         * cgraph.h (cgraph_local_info): Remove for_functions_valid.
1651         (cgraph_global_info): Remove inlined.
1652         (LTO_cgraph_tag_names): Remove.
1653         (LTO_cgraph_tags, LCC_NOT_FOUND): Move to ...
1654         * lto-cgraph.c (LTO_cgraph_tags, LCC_NOT_FOUND): ... here;
1655         simplify cgraph tags and document.
1656         (lto_output_node): Use only LTO_cgraph_unavail_node and
1657         LTO_cgraph_analyzed_node; Do not save analzed, reachable,
1658         for_functions_valid, global info, process and output flags.
1659         (input_overwrite_node): Initialize estimated stack size and
1660         estimated growth.  Do not read flags we no longer store.
1661         (input_node): Likewise do not read info no longer stored.
1662         * ipa-inline.c (cgraph_mark_inline_edge): Do not set global.inlined
1663         flag.
1664
1665 2010-04-30  Richard Guenther  <rguenther@suse.de>
1666
1667         PR tree-optimization/43879
1668         * tree-ssa-structalias.c (get_constraint_for_1): Properly
1669         handle non-zero initializers.
1670
1671 2010-04-30  Richard Guenther  <rguenther@suse.de>
1672
1673         * builtins.c (fold_builtin_1): Delete free (0).
1674
1675 2010-04-29  Jan Hubicka  <jh@suse.cz>
1676
1677         * gengtype.c (open_base_files): Add lto-streamer.h
1678         * cgraph.h (cgraph_local_info): lto_file_data is now in GGC.
1679         (pass_ipa_cp): GGC collect.
1680         * toplev. (compile_file): Do not output symbols.
1681         * ipa-inline.c (pass_ipa_inline): Add ggc collect.
1682         * timevar.def (TV_VARPOOL, TV_IPA_LTO_DECL_INIT_IO,
1683         TV_IPA_LTO_DECL_MERGE, TV_IPA_LTO_CGRAPH_MERGE, TV_VAROUT): New.
1684         * lto-section-in.c: Include ggc.h
1685         (lto_new_in_decl_state): Alloc in GGC.
1686         (lto_delete_in_decl_state): Likewise.
1687         * ipa.c (pass_ipa_function_visibility, pass_ipa_whole_program):
1688         Collect.
1689
1690 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
1691
1692         PR target/42895
1693         * doc/tm.texi (ADJUST_REG_ALLOC_ORDER): Renamed from
1694         ORDER_REGS_FOR_LOCAL_ALLOC.  All instances of this macro changed.
1695         (HONOR_REG_ALLOC_ORDER): Describe new macro.
1696         * ira.c (setup_alloc_regs): Use ADJUST_REG_ALLOC_ORDER if defined.
1697         * ira-color.c (assign_hard_reg): Take prologue/epilogue costs into
1698         account only if HONOR_REG_ALLOC_ORDER is not defined.
1699         * config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Define.
1700         * system.h (ORDER_REGS_FOR_LOCAL_ALLOC): Poison.
1701
1702 2010-04-29  Jon Grant  <04@jguk.org>
1703
1704         * collect2.c (vflag): Change type from int to bool.
1705         (debug): Likewise.
1706         (helpflag): New global bool.
1707         (main): Set vflag and debug with boolean, not integer truth values.
1708         Accept new "--help" option and output usage text if found.
1709         * collect2.h (vflag): Update prototype.
1710         (debug): Likewise.
1711
1712 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
1713
1714         PR bootstrap/43936
1715         * plugin.h (flag_plugin_added): Moved out of invoke_plugin_callbacks.
1716
1717 2010-04-29  Richard Guenther  <rguenther@suse.de>
1718
1719         PR bootstrap/43935
1720         * plugin.h (invoke_plugin_callbacks): Annotate arguments
1721         with ATTRIBUTE_UNUSED.
1722
1723 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
1724
1725         PR target/43921
1726         * config/i386/i386.c (get_some_local_dynamic_name): Replace
1727         INSN_P with NONDEBUG_INSN_P.
1728         (distance_non_agu_define): Likewise.
1729         (distance_agu_use): Likewise.
1730
1731 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
1732
1733         From Dominique d'Humieres <dominiq@lps.ens.fr>
1734         PR bootstrap/43858
1735         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs to compute
1736         test_set.
1737
1738 2010-04-29  Brian Hackett  <bhackett1024@gmail.com>
1739
1740         * plugin.h (invoke_plugin_callbacks): New inline function.
1741         * plugin.c (flag_plugin_added): New global flag.
1742         (add_new_plugin): Initialize above flag.
1743         (invoke_plugin_callbacks): Rename to ...
1744         (invoke_plugin_callbacks_full): ... this.
1745
1746 2010-04-28  Jan Hubicka  <jh@suse.cz>
1747
1748         * lto-symtab.c (lto_symtab_entry_def) Add vnode.
1749         (lto_varpool_replace_node): New.
1750         (lto_symtab_resolve_symbols): Resolve varpool nodes.
1751         (lto_symtab_merge_decls_1): Prefer decls with varpool node.
1752         (lto_symtab_merge_cgraph_nodes_1): Merge varpools.
1753         * cgraph.h (varpool_node_ptr): New type.
1754         (varpool_node_ptr): New vector.
1755         (varpool_node_set_def): New structure.
1756         (varpool_node_set): New type.
1757         (varpool_node_set): New vector.
1758         (varpool_node_set_element_def): New structure.
1759         (varpool_node_set_element, const_varpool_node_set_element): New types.
1760         (varpool_node_set_iterator): New type.
1761         (varpool_node): Add prev pointers, add used_from_other_partition,
1762         in_other_partition.
1763         (varpool_node_set_new, varpool_node_set_find, varpool_node_set_add,
1764         varpool_node_set_remove, dump_varpool_node_set, debug_varpool_node_set,
1765         varpool_get_node, varpool_remove_node): Declare.
1766         (vsi_end_p, vsi_next, vsi_node, vsi_start, varpool_node_in_set_p,
1767         varpool_node_set_size): New inlines.
1768         * cgraph.c (dump_cgraph_node): Dump asm names of aliases.
1769         * tree-pass.h (varpool_node_set_def): Forward declare.
1770         (ipa_opt_pass_d): Summary writting takes vnode sets too.
1771         (ipa_write_optimization_summaries): Update prototype.
1772         * ipa-cp.c (ipcp_write_summary): Update.
1773         * ipa-reference.c (ipa_reference_write_summary): Update.
1774         * lto-cgraph.c (lto_output_varpool_node): New static function.
1775         (output_varpool): New function.
1776         (input_varpool_node): New static function.
1777         (input_varpool_1): New function.
1778         (input_cgraph): Input varpool.
1779         * ipa-pure-const.c (pure_const_write_summary): Update.
1780         * lto-streamer-out.c (lto_output): Update, output varpool too.
1781         (write_global_stream): Kill WPA hack.
1782         (produce_asm_for_decls): Update.
1783         (output_alias_pair_p): Handle variables.
1784         (output_unreferenced_globals): Output only needed partition of varpool.
1785         * ipa-inline.c (inline_write_summary): Update.
1786         * lto-streamer-in.c (lto_input_tree_ref, lto_input_tree): Do not build
1787         cgraph.
1788         * lto-section-in.c (lto_section_name): Add varpool and jump funcs.
1789         * ipa.c (hash_varpool_node_set_element, eq_varpool_node_set_element,
1790         varpool_node_set_new, varpool_node_set_add,
1791         varpool_node_set_remove, varpool_node_set_find, dump_varpool_node_set,
1792         debug_varpool_node_set): New functions.
1793         * passes.c (rest_of_decl_compilation): when in LTO do not finalize.
1794         (execute_one_pass): Process new decls too.
1795         (ipa_write_summaries_2): Pass around vsets.
1796         (ipa_write_summaries_1): Likewise.
1797         (ipa_write_summaries): Build vset; be more selective about cgraph nodes
1798         to add.
1799         (ipa_write_optimization_summaries_1): Pass around vsets.
1800         (ipa_write_optimization_summaries): Likewise.
1801         * varpool.c (varpool_get_node): New.
1802         (varpool_node): Update doubly linked lists.
1803         (varpool_remove_node): New.
1804         (dump_varpool_node): More dumping.
1805         (varpool_enqueue_needed_node): Update doubly linked lists.
1806         (decide_is_variable_needed): Kill ltrans hack.
1807         (varpool_finalize_decl): Kill lto hack.
1808         (varpool_assemble_decl): Skip decls in other partitions.
1809         (varpool_assemble_pending_decls): Update doubly linkes lists.
1810         (varpool_empty_needed_queue): Likewise.
1811         (varpool_extra_name_alias): Likewise.
1812         * lto-streamer.c (lto_get_section_name): Add vars section.
1813         * lto-streamer.h (lto_section_type): Update.
1814         (output_varpool, input_varpool): Declare.
1815
1816 2010-04-28  Mike Stump  <mikestump@comcast.net>
1817
1818         * config/i386/darwin.h (CC1_SPEC): Ignore -mdynamic-no-pic for now.
1819
1820 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1821
1822         * lto-streamer-in.c (unpack_ts_type_value_fields): Replace test for
1823         record or union type with RECORD_OR_UNION_TYPE_P predicate.
1824         (lto_input_ts_type_tree_pointers): Likewise.
1825         * lto-streamer-out.c (pack_ts_type_value_fields): Likewise.
1826         (lto_output_ts_type_tree_pointers): Likewise.
1827
1828 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1829
1830         Uniquization of constants at the Tree level
1831         * tree.h (DECL_IN_CONSTANT_POOL): New macro.
1832         (tree_decl_with_vis): Add in_constant_pool bit, move shadowed_for_var_p
1833         bit to the end.
1834         (tree_output_constant_def): Declare.
1835         * gimplify.c (gimplify_init_constructor): When using block copy, first
1836         uniquize the constant constructor on the RHS.
1837         * lto-streamer-in.c (unpack_ts_decl_with_vis_value_fields): Deal with
1838         DECL_IN_CONSTANT_POOL flag.
1839         * lto-streamer-out.c (pack_ts_decl_with_vis_value_fields): Likewise.
1840         * varasm.c (make_decl_rtl): Deal with variables belonging to the global
1841         constant pool.
1842         (assemble_variable): Deal with symbols belonging to the tree constant
1843         pool.
1844         (get_constant_section): Add ALIGN parameter and simplify.
1845         (build_constant_desc): Build a VAR_DECL and attach it to the symbol.
1846         (assemble_constant_contents): Use the expression of the VAR_DECL.
1847         (output_constant_def_contents): Use the alignment of the VAR_DECL.
1848         (tree_output_constant_def): New global function.
1849         (mark_constant): Use the expression of the VAR_DECL.
1850         (place_block_symbol): Use the alignment of the VAR_DECL and the size of
1851         its expression.
1852         (output_object_block): Likewise and assemble the expression.
1853
1854 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1855
1856         * lto-streamer.c [LTO_STREAMER_DEBUG] (tree_htab, tree_hash_entry,
1857         hash_tree, eq_tree): New tree hash table.
1858         (lto_streamer_init) [LTO_STREAMER_DEBUG]: Initialize it.
1859         [LTO_STREAMER_DEBUG] (lto_orig_address_map, lto_orig_address_get,
1860         lto_orig_address_remove): Reimplement.
1861
1862 2010-04-28  Xinliang David Li  <davidxl@google.com>
1863
1864         PR c/42643
1865         * tree-ssa-uninit.c (can_skip_redundant_opnd): New function.
1866         (compute_uninit_opnds_pos): New function.
1867         (is_non_loop_exit_postdominating): New function.
1868         (compute_control_dep_chain): New function.
1869         (find_pdom): New function.
1870         (convert_control_dep_chain_into_preds): New function.
1871         (find_predicates): New function.
1872         (find_control_equiv_block): New function.
1873         (collect_phi_def_edges): New function.
1874         (find_def_preds): New function.
1875         (find_dom): New function.
1876         (dump_predicates): New function.
1877         (get_cmp_code): New function.
1878         (is_value_included_in): New function.
1879         (find_matching_predicate_in_rest_chains): New function.
1880         (use_pred_not_overlap_with_undef_path_pred): New function.
1881         (is_use_properly_guarded): New function.
1882         (normalize_cond_1): New function.
1883         (is_and_or_or): New function.
1884         (normalize_cond): New function.
1885         (is_gcond_subset_of): New function.
1886         (is_subset_of_any): New function.
1887         (is_or_set_subset_of): New function.
1888         (is_and_set_subset_of): New function.
1889         (is_norm_cond_subset_of): New function.
1890         (is_pred_expr_subset_of): New function.
1891         (is_pred_chain_subset_of): New function.
1892         (is_included_in): New function.
1893         (is_superset_of): New function.
1894         (find_uninit_use): New function.
1895         (warn_uninitialized_phi): New function.
1896         (compute_possibly_undefined_names): New function.
1897         (ssa_undefined_value_p): New function.
1898         (execute_late_warn_uninitialized): New function.
1899         * tree-ssa.c (ssa_undefined_value_p): Removed.
1900         (warn_uninit): Changed to extern.
1901         (warn_uninitialized_phi): Removed.
1902         (warn_uninitialized_vars): Changed to extern.
1903         (execute_late_warn_uninitialized): Removed
1904         * tree-flow.h: Add new prototypes.
1905         * timevar.def: Add new time variable.
1906         * Makefile.in: Add new build file.
1907
1908 2010-04-28  Uros Bizjak  <ubizjak@gmail.com>
1909
1910         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use gnu_unique_object
1911         type if available.
1912
1913 2010-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1914
1915         PR target/22224
1916         * config/alpha/osf5.h (ASM_OUTPUT_LOCAL): Redefine.
1917
1918 2010-04-28  Martin Jambor  <mjambor@suse.cz>
1919
1920         * cgraph.h (struct cgraph_node): New field indirect_calls.
1921         (struct cgraph_indirect_call_info): New type.
1922         (struct cgraph_edge): Removed field indirect_call. New fields
1923         indirect_info, indirect_inlining_edge and indirect_unknown_callee.
1924         (cgraph_create_indirect_edge): Declare.
1925         (cgraph_make_edge_direct): Likewise.
1926         (enum LTO_cgraph_tags): New item LTO_cgraph_indirect_edge.
1927         * ipa-prop.h (struct ipa_param_call_note): Removed.
1928         (struct ipa_node_params): Removed field param_calls.
1929         (ipa_create_all_structures_for_iinln): Declare.
1930         * cgraph.c: Described indirect edges and uids in initial comment.
1931         (cgraph_add_edge_to_call_site_hash): New function.
1932         (cgraph_edge): Search also among the indirect edges, use
1933         cgraph_add_edge_to_call_site_hash to add edges to the call site hash.
1934         (cgraph_set_call_stmt): Possibly turn an indirect edge into a direct
1935         one, use cgraph_add_edge_to_call_site_hash to add edges to the call
1936         site hash.
1937         (initialize_inline_failed): Assign a reason to indirect edges.
1938         (cgraph_create_edge_1): New function.
1939         (cgraph_create_edge): Moved some functionality to
1940         cgraph_create_edge_1.
1941         (cgraph_create_indirect_edge): New function.
1942         (cgraph_edge_remove_callee): Add an assert checking for
1943         non-indirectness.
1944         (cgraph_edge_remove_caller): Special-case indirect edges.
1945         (cgraph_remove_edge): Likewise.
1946         (cgraph_set_edge_callee): New function.
1947         (cgraph_redirect_edge_callee): Use cgraph_set_edge_callee.
1948         (cgraph_make_edge_direct): New function.
1949         (cgraph_update_edges_for_call_stmt_node): Do nothing only when also
1950         the declaration of the call statement matches.
1951         (cgraph_node_remove_callees): Special-case indirect edges.
1952         (cgraph_clone_edge): Likewise.
1953         (cgraph_clone_node): Clone also the indirect edges.
1954         (dump_cgraph_node): Dump indirect_inlining_edge flag instead of
1955         indirect_call, dump count of indirect_calls edges.
1956         * ipa-prop.c (iinlining_processed_edges): New variable.
1957         (ipa_note_param_call): Create indirect edges instead of
1958         creating notes.  New parameter node.
1959         (ipa_analyze_call_uses): New parameter node, pass it on to
1960         ipa_note_param_call.
1961         (ipa_analyze_stmt_uses): Likewise.
1962         (ipa_analyze_params_uses): Pass node to ipa_analyze_stmt_uses.
1963         (print_edge_addition_message): Work on edges rather than on notes.
1964         (update_call_notes_after_inlining): Likewise, renamed to
1965         update_indirect_edges_after_inlining.
1966         (ipa_create_all_structures_for_iinln): New function.
1967         (ipa_free_node_params_substructures): Do not free notes.
1968         (ipa_edge_duplication_hook): Propagate bits within
1969         iinlining_processed_edges bitmap.
1970         (ipa_node_duplication_hook): Do not duplicate notes.
1971         (free_all_ipa_structures_after_ipa_cp): Renamed to
1972         ipa_free_all_structures_after_ipa_cp.
1973         (free_all_ipa_structures_after_iinln): Renamed to
1974         ipa_free_all_structures_after_iinln.
1975         (ipa_write_param_call_note): Removed.
1976         (ipa_read_param_call_note): Removed.
1977         (ipa_write_indirect_edge_info): New function.
1978         (ipa_read_indirect_edge_info): Likewise.
1979         (ipa_write_node_info): Do not stream notes, do stream information
1980         in indirect edges.
1981         (ipa_read_node_info): Likewise.
1982         (lto_ipa_fixup_call_notes): Removed.
1983         * ipa-cp.c (pass_ipa_cp): Set stmt_fixup to NULL.
1984         * ipa-inline.c (pass_ipa_inline): Likewise.
1985         * cgraphunit.c (verify_cgraph_node): Check also indirect edges.
1986         * cif-code.def (INDIRECT_UNKNOWN_CALL): New reason.
1987         * tree-inline.c (copy_bb): Removed an unnecessary double check for
1988         is_gimple_call.
1989         * tree-inline.c (get_indirect_callee_fndecl): Do not consider indirect
1990         edges.
1991         * lto-cgraph.c (output_outgoing_cgraph_edges): New function.
1992         (output_cgraph): Stream also indirect edges.
1993         (lto_output_edge): Added capability to stream indirect edges.
1994         (input_edge): Likewise.
1995         (input_cgraph_1): Likewise.
1996         * lto-streamer-in.c (fixup_call_stmt_edges_1): Fixup also statements
1997         of indirect edges.
1998
1999 2010-04-28  Richard Guenther  <rguenther@suse.de>
2000
2001         PR tree-optimization/43879
2002         PR tree-optimization/43909
2003         * tree-ssa-structalias.c (struct variable_info): Add
2004         only_restrict_pointers flag.
2005         (new_var_info): Initialize it.  Increment stats.total_vars here.
2006         (create_function_info_for): Do not increment stats.total_vars here.
2007         (get_function_part_constraint): Fix build with C++.
2008         (insert_into_field_list): Remove.
2009         (push_fields_onto_fieldstack): Properly merge fields.
2010         (create_variable_info_for): Split and simplify.
2011         (create_variable_info_for_1): New piece.
2012         (intra_create_variable_infos): Properly make restrict constraints
2013         from parameters.
2014
2015 2010-04-28  Richard Guenther  <rguenther@suse.de>
2016
2017         PR c++/43880
2018         * tree-inline.c (copy_bind_expr): Also copy bind expr vars value-exprs.
2019
2020 2010-04-27  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2021             Jan Hubicka <hubicka@ucw.cz>
2022
2023         * doc/invoke.texi (-Wsuggest-attribute=const,
2024         -Wsuggest-attribute=pure): Document.
2025         * ipa-pure-const.c: Include toplev.h, intl.h and opts.h.
2026         (function_always_visible_to_compiler_p,
2027         suggest_attribute, warn_function_pure, warn_function_const):
2028         New functions.
2029         (check_call): Improve debug info.
2030         (analyze_function): Do not check availability.
2031         (add_new_function): Check availability.
2032         (propagate): Output warnings.
2033         (skip_function_for_local_pure_const): New function.
2034         (local_pure_const): Use it; output warnings.
2035         * common.opt (Wsuggest-attribute=const,
2036         Wsuggest-attribute=pure): New.
2037
2038 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
2039
2040         * dwarf2out.c (def_cfa_1): After DW_CFA_def_cfa_expression
2041         force using DW_CFA_def_cfa instead of DW_CFA_def_cfa_register
2042         or DW_CFA_def_cfa_offset{,_sf}.
2043
2044 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
2045
2046         * tree.h: Fix truncated long macros.
2047
2048 2010-04-27  Kai Tietz  <kai.tietz@onevision.com>
2049
2050         * collect2.c (TARGET_64BIT): Redefine to target's default.
2051         * tlink.c: Likewise.
2052         * config/i386/cygming.h (USER_LABEL_PREFIX): Define
2053         dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
2054         * config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
2055         for underscoring __USER_LABEL_PREFIX__.
2056         * config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
2057         (SUB_LINK_ENTRY32): New.
2058         (SUB_LINK_ENTRY64): New.
2059         (LINK_SPEC): Replace entry point spec by SUB_LINK_ENTRY.
2060         * config/i386/mingw32 (SUB_LINK_ENTRY32): New.
2061         (SUB_LINK_ENTRY64): New.
2062         (SUB_LINK_ENTRY): New.
2063         (LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
2064         (DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
2065         x64 target is choosen.
2066         * config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
2067         * configure: Regenerated.
2068         * configure.ac (leading-mingw64-underscores): Option added.
2069
2070 2010-04-27  Jan Hubicka  <jh@suse.cz>
2071
2072         * doc/invoke.texi (-fipa-profile): Document.
2073         * opts.c (decode_options): Enable ipa-profile at -O1.
2074         * timevar.def (TV_IPA_PROFILE): Define.
2075         * common.opt (fipa-profile): Add.
2076         * cgraph.c (cgraph_clone_node): Set local flag and clear vtable method
2077         flag for clones.
2078         (cgraph_propagate_frequency): Handle only local ones.
2079         * tree-pass.h (pass_ipa_profile): Declare.
2080         * ipa-profile.c (gate_profile): Use flag_ipa_profile.
2081         (pass_ipa_profile): Use TV_IPA_PROFILE.
2082         * ipa.c (ipa_profile): New function.
2083         (gate_ipa_profile): Likewise.
2084         (pass_ipa_profile): New global variable.
2085         * passes.c (pass_ipa_profile): New.
2086
2087 2010-04-27  Nathan Froyd  <froydnj@codesourcery.com>
2088
2089         * config/arm/arm.c (arm_expand_builtin): Remove redundant declaration.
2090
2091 2010-04-27  Martin Jambor  <mjambor@suse.cz>
2092
2093         PR middle-end/43812
2094         * ipa.c (dissolve_same_comdat_group_list): New function.
2095         (function_and_variable_visibility): Call
2096         dissolve_same_comdat_group_list when comdat group contains external or
2097         newly local nodes.
2098         * cgraphunit.c (verify_cgraph_node): Verify that same_comdat_group
2099         lists are circular and that they contain only DECL_ONE_ONLY nodes.
2100
2101 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
2102
2103         * varasm.c (decode_addr_const): Handle special case of INDIRECT_REF.
2104         (const_hash_1) <VECTOR_CST>: New case.
2105         (compare_constant) <VECTOR_CST>: Likewise.
2106         <ADDR_EXPR>: Deal with LABEL_REFs.
2107         (copy_constant) <VECTOR_CST>: New case.
2108
2109 2010-04-27  Jan Hubicka  <jh@suse.cz>
2110
2111         * cgraph.c (cgraph_propagate_frequency): New function.
2112         * cgraph.h (cgraph_propagate_frequency): Declare.
2113         * ipa-inline.c (cgraph_clone_inlined_nodes): Call
2114         cgraph_propagate_frequency.
2115
2116 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
2117
2118         * unwind-dw2.c (_Unwind_DebugHook): Add used and noclone attributes.
2119
2120 2010-04-27  Bernd Schmidt  <bernds@codesourcery.com>
2121
2122         PR target/40657
2123         * config/arm/arm.c (thumb1_extra_regs_pushed): New function.
2124         (thumb1_expand_prologue, thumb1_output_function_prologue): Call it
2125         here to determine which regs to push and how much stack to reserve.
2126
2127 2010-04-27  Jie Zhang  <jie@codesourcery.com>
2128
2129         * doc/gimple.texi (gimple_statement_with_ops): Remove
2130         addresses_taken field.
2131         (gimple_statement_with_memory_ops): Likewise.
2132
2133 2010-04-27  Jan Hubicka  <jh@suse.cz>
2134
2135         * tree-inline.c (eni_inlining_weights): Remove.
2136         (estimate_num_insns): Special case more builtins.
2137
2138 2010-04-27  Shujing Zhao  <pearly.zhao@oracle.com>
2139
2140         PR c/32207
2141         * c-typeck.c (build_binary_op): Move forward check for comparison
2142         pointer with null pointer constant and adjust the diagnostic message.
2143
2144 2010-04-27  Dave Korn  <dave.korn.cygwin@gmail.com>
2145
2146         PR lto/42776
2147         * configure.ac (gcc_cv_as_section_has_align): Set if installed
2148         binutils supports extended .section directive needed by LTO, or
2149         warn if older binutils found.
2150         (LTO_BINARY_READER): New AC_SUBST'd variable.
2151         (LTO_USE_LIBELF): Likewise.
2152         * gcc/config.gcc (lto_binary_reader): New target-specific configure
2153         variable.
2154         * gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
2155         (LTO_USE_LIBELF): Likewise.
2156         * configure: Regenerate.
2157
2158         * collect2.c (is_elf): Rename from this ...
2159         (is_elf_or_coff): ... to this, and recognize and allow i386 COFF
2160          object files in addition to ELF-formatted ones.
2161         (scan_prog_file): Caller updated.  Also allow for LTO info marker
2162         symbol to be prefixed or not by an extra underscore.
2163
2164         * config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
2165         * config/i386/winnt.c: Also #include lto-streamer.h
2166         (i386_pe_asm_named_section): Specify 1-byte section alignment for
2167         LTO named sections.
2168         (i386_pe_asm_output_aligned_decl_common): Add comment.
2169         (i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
2170
2171 2010-04-27  Hans-Peter Nilsson  <hp@bitrange.com>
2172
2173         PR target/43889
2174         * config/mmix/mmix.md ("*divdi3_nonknuth", "*moddi3_nonknuth"):
2175         Add missing earlyclobber for second alternative.
2176
2177 2010-04-26  Bernd Schmidt  <bernds@codesourcery.com>
2178
2179         * df-problems.c (df_simulate_initialize_forwards): Set, don't clear,
2180         bits for artificial defs at the top of the block.
2181         * fwprop.c (single_def_use_enter_block): Don't call it.
2182
2183 2010-04-26  Jack Howarth <howarth@bromo.med.uc.edu>
2184
2185         PR 43715
2186         * gcc/configure.ac: Use "$gcc_cv_nm -g" on darwin
2187         instead of "$gcc_cv_objdump -T".
2188         Use "-undefined dynamic_lookup" on darwin.
2189         * gcc/configure: Regenerate.
2190
2191 2010-04-26  Jakub Jelinek  <jakub@redhat.com>
2192
2193         PR c/43893
2194         * c-omp.c (c_finish_omp_for): Handle also EQ_EXPR.
2195
2196 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
2197
2198         * c-parser.c (struct c_token): Move location field up.
2199         * c-tree.h (struct c_typespec): Move expr_const_operands field up.
2200         (struct c_declspecs): Convert typespec_word, storage_class, and
2201         default_int_p into bitfields.
2202         (struct c_declarator): Move loc field up.
2203
2204 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
2205
2206         * cfgloop.h (struct loop): Move can_be_parallel field up.
2207         * ipa-prop.h (struct ip_node_params): Move bitfields up.
2208         * tree-ssa-loop-ivopts.c (struct version_info): Move inv_id field
2209         down.
2210         (struct iv_cand): Convert pos field into a bitfield.
2211         * tree-vectorizer.h (struct _loop_vec_info): Move loop_line_number
2212         field up.
2213         (struct _stmt_vec_info): Shuffle fields for better packing.
2214
2215 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
2216
2217         * varasm.c (IN_NAMED_SECTION): Remove guard.
2218         * config/arm/unknown-elf.h (IN_NAMED_SECTION): Rename to...
2219         (IN_NAMED_SECTION_P): ...this.
2220         (ASM_OUTPUT_ALIGNED_BSS): Adjust for above renaming.
2221         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.
2222
2223 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
2224
2225         * gimplify.c (gimplify_cond_expr): Use THEN_ and ELSE_ local variables.
2226         Use VOID_TYPE_P for all void type tests.  Adjust TYPE variable instead
2227         of shadowing it.  Fix comments.
2228
2229 2010-04-26  Jan Hubicka  <jh@suse.cz>
2230
2231         * cgraph.c (cgraph_create_node): Set node frequency to normal.
2232         (cgraph_clone_node): Copy function frequency.
2233         * cgraph.h (node_frequency): New enum
2234         (struct cgraph_node): Add.
2235         * final.c (rest_of_clean_state): Update.
2236         * lto-cgraph.c (lto_output_node): Output node frequency.
2237         (input_overwrite_node): Input node frequency.
2238         * tre-ssa-loop-ivopts (computation_cost): Update.
2239         * lto-streamer-out.c (output_function): Do not output function
2240         frequency.
2241         * predict.c (maybe_hot_frequency_p): Update and handle functions
2242         executed once.
2243         (cgraph_maybe_hot_edge_p): Likewise; use cgraph frequency instead of
2244         attribute lookup.
2245         (probably_never_executed_bb_p, optimize_function_for_size_p): Update.
2246         (compute_function_frequency): Set noreturn functions to be executed
2247         once.
2248         (choose_function_section): Update.
2249         * lto-streamer-in.c (input_function): Do not input function frequency.
2250         * function.c (allocate_struct_function): Do not initialize function
2251         frequency.
2252         * function.h (function_frequency): Remove.
2253         (struct function): Remove function frequency.
2254         * ipa-profile.c (CGRAPH_NODE_FREQUENCY): Remove.
2255         (try_update): Update.
2256         * tree-inline.c (initialize_cfun): Do not update function frequency.
2257         * passes.c (pass_init_dump_file): Update.
2258         * i386.c (ix86_compute_frame_layout): Update.
2259         (ix86_pad_returns): Update.
2260
2261 2010-04-26  Jie Zhang  <jie@codesourcery.com>
2262
2263         PR tree-optimization/43833
2264         * tree-vrp.c (range_int_cst_p): New.
2265         (range_int_cst_singleton_p): New.
2266         (extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
2267         when both operands are constants.  Use range_int_cst_p in
2268         BIT_IOR_EXPR case.
2269
2270 2010-04-26  Jan Hubicka  <jh@suse.cz>
2271
2272         * cgraphunit.c (cgraph_copy_node_for_versioning): Fix profile updating.
2273
2274 2010-04-26  Richard Guenther  <rguenther@suse.de>
2275
2276         PR lto/43080
2277         * gimple.c (gimple_decl_printable_name): Deal gracefully
2278         with a NULL DECL_NAME.
2279
2280 2010-04-26  Richard Guenther  <rguenther@suse.de>
2281
2282         PR lto/42425
2283         * tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
2284         if emitting debug information and it is either a function
2285         or a namespace decl.
2286
2287 2010-04-26  Ira Rosen  <irar@il.ibm.com>
2288
2289         * tree-vectorizer.h (struct _stmt_vec_info): Add new field to
2290         determine if the statement is vectorizable, and a macro to access it.
2291         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
2292         Skip statements that can't be vectorized. If the analysis fails,
2293         mark the statement as unvectorizable if vectorizing basic block.
2294         (vect_compute_data_refs_alignment): Likewise.
2295         (vect_verify_datarefs_alignment): Skip statements marked as
2296         unvectorizable. Add print.
2297         (vect_analyze_group_access): Skip statements that can't be
2298         vectorized. If the analysis fails, mark the statement as
2299         unvectorizable if vectorizing basic block.
2300         (vect_analyze_data_ref_accesses, vect_analyze_data_refs): Likewise.
2301         * tree-vect-stmts.c (vectorizable_store): Fix the number of
2302         generated stmts for SLP.
2303         (new_stmt_vec_info): Initialize the new field.
2304         * tree-vect-slp.c (vect_build_slp_tree): Fail to vectorize
2305         statements marked as unvectorizable.
2306
2307 2010-04-25  Joseph Myers  <joseph@codesourcery.com>
2308
2309         * c-common.c (flag_isoc1x): New.
2310         (flag_isoc99): Update comment.
2311         * c-common.h (flag_isoc1x): New.
2312         (flag_isoc99): Update comment.
2313         * c-cppbuiltin.c (builtin_define_float_constants): Also define
2314         __<type>_DECIMAL_DIG__.
2315         * c-opts.c (set_std_c1x): New.
2316         (c_common_handle_option): Handle -std=c1x and -std=gnu1x.
2317         (set_std_c89, set_std_c99): Also set flag_isoc1x to 0.
2318         * c.opt (-std=c1x, -std=gnu1x): New options.
2319         * doc/cpp.texi: Mention -std=c1x.
2320         * doc/cppopts.texi (-std=c1x, -std=gnu1x): Document.
2321         * doc/extend.texi: Mention -std=c1x and -std=gnu1x.
2322         * doc/invoke.texi (-std=c1x, -std=gnu1x): Document.
2323         * doc/standards.texi: Mention C1X.
2324         * ginclude/float.h (FLT_DECIMAL_DIG, DBL_DECIMAL_DIG,
2325         LDBL_DECIMAL_DIG, FLT_HAS_SUBNORM, DBL_HAS_SUBNORM,
2326         LDBL_HAS_SUBNORM, FLT_TRUE_MIN, DBL_TRUE_MIN, LDBL_TRUE_MIN):
2327         Define for C1X.
2328
2329 2010-04-25  Uros Bizjak  <ubizjak@gmail.com>
2330
2331         * config/i386/gmon-sol2.c (_mcleanup): Change format string
2332         placeholder from 0x%x to %#x.
2333         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
2334         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
2335         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
2336         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
2337         * config/i386/i386.c (ix86_target_string): Ditto.
2338         (output_pic_addr_const): Ditto.
2339         (print_operand): Ditto.
2340
2341 2010-04-25  Paolo Bonzini  <bonzini@gnu.org>
2342
2343         * combine.c (find_split_point): Add third argument.  Use it
2344         to find nested multiply-accumulate instructions.  Adjust calls.
2345         (try_combine): Adjust call to find_split_point.
2346
2347 2010-04-24  Gerald Pfeifer  <gerald@pfeifer.com>
2348
2349         * doc/contrib.texi (Contributors): Add Dodji Seketeli.
2350
2351 2010-04-24  Bernd Schmidt  <bernds@codesourcery.com>
2352
2353         PR tree-optimization/41442
2354         * fold-const.c (merge_truthop_with_opposite_arm): New function.
2355         (fold_binary_loc): Call it.
2356
2357 2010-04-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2358
2359         * toplev.c (general_init): Set default for fdiagnostics-show-option.
2360         * opts.c (common_handle_option): Allow disabling it.
2361         * common.opt (fdiagnostics-show-option): Add Var. Enabled by default.
2362
2363 2010-04-23  Eric Botcazou  <ebotcazou@adacore.com>
2364
2365         * expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: Only use conversion
2366         between modes if both types are integral.
2367
2368 2010-04-23  Richard Guenther  <rguenther@suse.de>
2369
2370         PR tree-optimization/43572
2371         * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.
2372
2373 2010-04-23  Richard Guenther  <rguenther@suse.de>
2374
2375         PR lto/43455
2376         * tree-inline.c (tree_can_inline_p): Also check compatibility
2377         of return types.
2378
2379 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2380
2381         PR tree-optimization/43846
2382         * tree-sra.c (struct access): New flag grp_assignment_read.
2383         (build_accesses_from_assign): Set grp_assignment_read.
2384         (sort_and_splice_var_accesses): Propagate grp_assignment_read.
2385         (enum mark_read_status): New type.
2386         (analyze_access_subtree): Propagate grp_assignment_read, create
2387         accesses also if both direct_read and root->grp_assignment_read.
2388
2389 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2390
2391         PR middle-end/43835
2392         * tree-sra.c (ipa_sra_preliminary_function_checks): Check that the
2393         function does not have type attributes.
2394
2395 2010-04-23  Richard Guenther  <rguenther@suse.de>
2396
2397         PR lto/42653
2398         * tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
2399         of FUNCTION_DECLs.
2400
2401 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2402
2403         * sese.h (create_if_region_on_edge): Remove.
2404
2405         * sese.c (create_if_region_on_edge): Make static.
2406
2407         * tree-inline.c: Do not include ggc.h.
2408
2409         * expr.c: Do not include ggc.h.
2410
2411         * Makefile.in (tree-inline.o, expr.o): Remove $(GGC_H) from
2412         dependencies.
2413
2414 2010-04-22  Kaz Kojima  <kkojima@gcc.gnu.org>
2415
2416         PR target/43744
2417         * config/sh/sh.c (find_barrier): Don't emit a constant pool
2418         in the middle of insns for casesi_worker_2.
2419
2420 2010-04-22  David Edelsohn  <edelsohn@gnu.org>
2421
2422         * config/rs6000/x-aix: Override LDFLAGS for all COMPILERS.
2423
2424 2010-04-22  Ira Rosen  <irar@il.ibm.com>
2425
2426         PR tree-optimization/43842
2427         * tree-vect-loop.c (vect_create_epilog_for_reduction): Handle
2428         loop unrolling in update of exit phis. Fix comment.
2429         * tree-vect-slp.c (vect_analyze_slp): Check that there are at
2430         least two reduction statements in the loop before starting SLP
2431         analysis.
2432
2433 2010-04-22  Nick Clifton  <nickc@redhat.com>
2434
2435         * config/stormy16/stormy16-lib2.c (__ucmpsi2): Fix thinko.
2436
2437 2010-04-22  Alexander Monakov  <amonakov@ispras.ru>
2438
2439         * tree-ssa-reassoc.c (eliminate_plus_minus_pair): Handle BIT_NOT_EXPR
2440         to simplify a + ~a.
2441
2442 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2443
2444         * tree-parloops.c (loop_parallel_p): New argument
2445         parloop_obstack.  Pass it down.
2446         (parallelize_loops): New variable parloop_obstack.  Initialize it,
2447         pass it down, free it.
2448
2449         * tree-loop-linear.c (linear_transform_loops): Pass down
2450         lambda_obstack.
2451
2452         * tree-data-ref.h (lambda_compute_access_matrices): New argument
2453         of type struct obstack *.
2454
2455         * tree-data-ref.c (analyze_subscript_affine_affine): New variable
2456         scratch_obstack.  Initialize it, pass down, free it.
2457
2458         * lambda.h (lambda_loop_new): Remove.
2459         (lambda_matrix_new, lambda_matrix_inverse)
2460         (lambda_trans_matrix_new, lambda_trans_matrix_inverse): New
2461         argument of type struct obstack *.
2462
2463         * lambda-trans.c (lambda_trans_matrix_new): New argument
2464         lambda_obstack.  Pass it down, use obstack allocation for ret.
2465         (lambda_trans_matrix_inverse): New argument lambda_obstack.  Pass
2466         it down.
2467
2468         * lambda-mat.c (lambda_matrix_get_column)
2469         (lambda_matrix_project_to_null): Remove.
2470         (lambda_matrix_new): New argument lambda_obstack.  Use obstack
2471         allocation for mat.
2472         (lambda_matrix_inverse_hard, lambda_matrix_inverse): New argument
2473         lambda_obstack.
2474
2475         * lambda-code.c (lambda_loop_new): New function.
2476         (lambda_lattice_new, compute_nest_using_fourier_motzkin)
2477         (lambda_compute_auxillary_space, lambda_compute_target_space)
2478         (lambda_loopnest_transform, gcc_loop_to_lambda_loop)
2479         (lambda_loopnest_to_gcc_loopnest): Pass down lambda_obstack.
2480         (build_access_matrix): New argument lambda_obstack.  Use obstack
2481         allocation for am.
2482         (lambda_compute_step_signs, lambda_compute_access_matrices): New
2483         argument lambda_obstack.  Pass it down.
2484
2485 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2486
2487         * optabs.h (expand_widening_mult): Declare.
2488
2489 2010-04-22  Richard Guenther  <rguenther@suse.de>
2490
2491         PR tree-optimization/43845
2492         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Properly
2493         lookup the CALL_EXPR function and arguments.
2494
2495 2010-04-22  Nick Clifton  <nickc@redhat.com>
2496
2497         * config/stormy16/stormy16.c
2498         (xstormy16_asm_output_aligned_common): Handle a NULL decl parameter.
2499         * config/stormy16/stormy16.h: Tidy up formatting.
2500         (DONT_USE_BUILTIN_SETJMP): Remove definition.
2501         * config/stormy16/stormy16.c (cbranchsi4): Delete pattern.
2502         (ineqbranchsi): Delete pattern.
2503         * config/stormy16/stormy16-lib2-ucmpsi2.c: New file.
2504         * config/stormy16/stormy16-lib2.c (__ucmpsi2): New function.
2505         * config/stormy16/t-stormy16 (LIB2FUNCS_EXTRA): Add
2506         stormy16-lib2-ucmpsi2.c.
2507
2508 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2509
2510         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and
2511         df_simulate_find_noclobber_defs as appropriate.  Keep track of an
2512         extra set merge_set_noclobber, and use it to relax the final test
2513         slightly.
2514         * df.h (df_simulate_find_noclobber_defs): Declare.
2515         * df-problems.c (df_simulate_find_defs): Don't ignore partial or
2516         conditional defs.
2517         (df_simulate_find_noclobber_defs): New function.
2518
2519 2010-04-22  Uros Bizjak  <ubizjak@gmail.com>
2520
2521         * config/i386/i386.md: Use {} around multi-line preparation statements.
2522
2523 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2524
2525         * c-tree.h (push_init_level, pop_init_level, set_init_index)
2526         (process_init_element): New argument of type struct obstack *.
2527
2528         * c-typeck.c (push_init_level, pop_init_level, set_designator)
2529         (set_init_index, set_init_label, set_nonincremental_init)
2530         (set_nonincremental_init_from_string, find_init_member)
2531         (output_init_element, output_pending_init_elements)
2532         (process_init_element): New argument braced_init_obstack.  Pass it
2533         down.
2534         (push_range_stack, add_pending_init): New argument
2535         braced_init_obstack.  Use obstack allocation.
2536
2537         * c-parser.c (c_parser_initelt, c_parser_initval): New argument
2538         braced_init_obstack.  Pass it down.
2539         (c_parser_braced_init): New variables ret, braced_init_obstack.
2540         Initialize obstack, pass it down and finally free it.
2541
2542 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2543
2544         PR middle-end/29274
2545         * tree-pass.h (pass_optimize_widening_mul): Declare.
2546         * tree-ssa-math-opts.c (execute_optimize_widening_mul,
2547         gate_optimize_widening_mul): New static functions.
2548         (pass_optimize_widening_mul): New.
2549         * expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: New case.
2550         <case MULT_EXPR>: Remove support for widening multiplies.
2551         * tree.def (WIDEN_MULT_EXPR): Tweak comment.
2552         * cfgexpand.c (expand_debug_expr) <case WIDEN_MULT_EXPR>: Use
2553         simplify_gen_unary rather than directly building extensions.
2554         * tree-cfg.c (verify_gimple_assign_binary): Add tests for
2555         WIDEN_MULT_EXPR.
2556         * expmed.c (expand_widening_mult): New function.
2557         * passes.c (init_optimization_passes): Add pass_optimize_widening_mul.
2558
2559 2010-04-21  Jan Hubicka  <jh@suse.cz>
2560
2561         * timevar.def (TV_WHOPR_WPA_FIXUP): Remove.
2562         * lto-section-in.c (lto_section_name): Remove wpa_fixup.
2563         * lto-wpa-fixup.c: Remove.
2564         * Makefile.in (lto-wpa-fixup.o): Remove.
2565         * passes.c (init_optimization_passes): Remove pass_ipa_lto_wpa_fixup.
2566         (execute_all_ipa_transforms): Set cgraph_state to CGRAPH_STATE_IPA_SSA.
2567         * lto-streamer.c (lto_get_section_name): Remove wpa_fixup section.
2568
2569 2010-04-21  Jan Hubicka  <jh@suse.cz>
2570
2571         * tree-pass.h (ipa_opt_pass_d): Rename function_read_summary;
2572         add write_optimization_summary, read_optimization_summary.
2573         (ipa_write_summaries_of_cgraph_node_set): Remove.
2574         (ipa_write_optimization_summaries): Declare.
2575         (ipa_read_optimization_summaries): Declare.
2576         * ipa-cp.c (pass_ipa_cp): Update.
2577         * ipa-reference.c (pass_ipa_reference): Update.
2578         * ipa-pure-const.c (pass_ipa_pure_const): Update.
2579         * lto-streamer-out.c (pass_ipa_lto_gimple, pass_ipa_lto_finish):
2580         Update.
2581         * ipa-inline.c (pass_ipa_inline): Update.
2582         * ipa.c (pass_ipa_whole_program): Update.
2583         * lto-wpa-fixup.c (pass_ipa_lto_wpa_fixup): Update.
2584         * passes.c (ipa_write_summaries_1): Do not test wpa.
2585         (ipa_write_optimization_summaries_1): New.
2586         (ipa_write_optimization_summaries): New.
2587         (ipa_read_summaries): Do not test ltrans.
2588         (ipa_read_optimization_summaries_1): New.
2589         (ipa_read_optimization_summaries): New.
2590
2591 2010-04-21  Jan Hubicka  <jh@suse.cz>
2592
2593         * lto-cgraph.c (lto_output_node): Do not output comdat groups
2594         for boundary nodes.
2595         (output_cgraph): Do not arrange comdat groups for boundary nodes.
2596
2597 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2598
2599         PR debug/40040
2600         * dwarf2out.c (add_name_and_src_coords_attributes): Add
2601         DW_AT_{,MIPS_}linkage_name even for Fortran decls.
2602
2603 2010-04-21  Jan Hubicka  <jh@suse.cz>
2604
2605         * ipa-prop.c (ipa_edge_removal_hook): Check for bounds.
2606
2607 2010-04-21  Jan Hubicka  <jh@suse.cz>
2608
2609         * varpool.c (decide_is_variable_needed): Variable is always needed
2610         during ltrans.
2611
2612 2010-04-21  Jan Hubicka  <jh@suse.cz>
2613
2614         * opts.c (decode_options): Enable pure-const pass for whopr.
2615
2616 2010-04-21  Jan Hubicka  <jh@suse.cz>
2617
2618         * cgraph.c (dump_cgraph_node): Dump also assembler name.
2619         * ipa-inline.c (cgraph_decide_inlining_of_small_functions): Do not ice
2620         at WPA dumping.
2621         (cgraph_decide_inlining): Do not expect callee to be removed in all
2622         cases.
2623
2624 2010-04-21  Eric B. Weddington  <eric.weddington@atmel.com>
2625
2626         * config/avr/avr-devices.c (avr_mcu_types): Add missing comma.
2627
2628 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
2629
2630         * config/i386/i386.md (x86_shrd): Add athlon_decode and
2631         amdfam10_decode attributes.
2632
2633 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2634
2635         PR middle-end/43570
2636         * omp-low.c (scan_sharing_clauses): Don't scan_omp_op
2637         OMP_CLAUSE_DECL for OMP_CLAUSE_COPYPRIVATE.
2638         (lower_copyprivate_clauses): Use private var in outer
2639         context instead of original var.  Make sure the types
2640         are correct for VLAs.
2641
2642 2010-04-21  Richard Guenther  <rguenther@suse.de>
2643
2644         * tree-ssa-structalias.c (do_ds_constraint): Avoid escaping
2645         to non-pointer objects.
2646
2647 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2648
2649         * dwarf2out.c (add_var_loc_to_decl): Add LABEL argument.  Drop
2650         last chain entry if it starts with the still current label.
2651         (add_location_or_const_value_attribute): Check that
2652         loc_list->first->next is NULL instead of comparing ->first with ->last.
2653         (dwarf2out_var_location): Pass last_label resp. last_postcall_label
2654         to add_var_loc_to_decl.
2655
2656         * dwarf2out.c (output_call_frame_info): For dw_cie_version
2657         >= 4 add also address size and segment size fields into CIE header.
2658
2659         * unwind-dw2.c (extract_cie_info): Handle CIE version 4, as
2660         long as address size is the same as sizeof (void *) and
2661         segment size is 0.
2662         * unwind-dw2-fde.c (get_cie_encoding): Likewise.  If
2663         address size or segment size is unexpected, return DW_EH_PE_omit.
2664         (classify_object_over_fdes): If get_cie_encoding returned
2665         DW_EH_PE_omit, return -1.
2666         (init_object): If classify_object_over_fdes returned -1,
2667         pretend there were no FDEs at all.
2668
2669 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
2670
2671         * config/i386/i386.md (bswap<mode>2): Macroize expander from
2672         bswap{si,di}2 using SWI48 mode iterator.
2673         (*bswap<mode>2_movbe): Macroize insn from *bswap{si,di}_movbe using
2674         SWI48 mode iterator.  Set type attribute of bswap insn to bitmanip,
2675         set modrm attribute of bswap insn to 0 and remove length attribute.
2676         (*bswap<mode>2_1): Macroize insn from *bswap{si,di}_1 using SWI48 mode
2677         iterator.  Set type attribute to bitmanip, set modrm attribute to 0,
2678         set mode attribute to <MODE> and remove length attribute.
2679
2680 2010-04-20  James E. Wilson  <wilson@codesourcery.com>
2681
2682         PR rtl-optimization/43520
2683         * ira-lives.c (ira_implicitly_set_insn_hard_regs): Exclude classes with
2684         zero available registers.
2685
2686 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2687
2688         * builtins.c (fold_builtin_cproj): Fold more cases.
2689
2690 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2691
2692         * builtins.c (build_complex_cproj, fold_builtin_cproj): New.
2693         (fold_builtin_1): Fold builtin cproj.
2694         * builtins.def (BUILT_IN_CPROJ, BUILT_IN_CPROJF, BUILT_IN_CPROJL):
2695         Use ATTR_CONST_NOTHROW_LIST.
2696
2697 2010-04-20  Uros Bizjak  <ubizjak@gmail.com>
2698
2699         * config/i386/i386.md (ffs<mode>2): Macroize expander from ffs_cmove
2700         and ffsdi2 using SWI48 mode iterator.  Expand SImode insn through
2701         ffsi2_no_cmove for !TARGET_CMOVE.
2702         (ffssi2_no_cmove): Rename from *ffs_no_cmove.  Make public.
2703         (ffssi2): Remove expander.
2704         (*ffs<mode>_1): Macroize insn from *ffs{si,di} using SWI48
2705         mode iterator.
2706         (ctz<mode>2): Ditto from ctz{si,di}2.
2707         (clz<mode>2): Macroize expander from ctz{hi,si,di}2 using SWI248
2708         mode iterator.
2709         (clz<mode>2_abm): Macroize insn from clz{hi,si,di}2_abm using SWI248
2710         mode iterator.
2711
2712 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
2713
2714         * dwarf2out.c (AT_linkage_name): Define.
2715         (clone_as_declaration): Handle DW_AT_linkage_name.
2716         (add_name_and_src_coords_attributes): Use AT_linkage_name instead
2717         of DW_AT_MIPS_linkage_name.
2718         (move_linkage_attr): Likewise.
2719         (dwarf2out_finish): Likewise.
2720
2721 2010-04-20  Xinliang David Li  <davidxl@gcc.gnu.org>
2722
2723         PR middle-end/41952
2724         * fold-const.c (fold_comparison): New folding rule.
2725
2726 2010-04-20  Anatoly Sokolov  <aesok@post.ru>
2727
2728         * double-int.h (double_int_setbit): Declare.
2729         * double-int.c (double_int_setbit): New function.
2730         * rtl.h (immed_double_int_const): Declare.
2731         * emit-rtl.c (immed_double_int_const): New function.
2732         * builtins.c (expand_builtin_signbit): Clean up, use double_int_*
2733         and immed_double_int_const functions.
2734         * optabs.c (expand_absneg_bit, expand_copysign_absneg,
2735         expand_copysign_bit):  (Ditto.).
2736         * simplify-rtx.c (simplify_binary_operation_1): (Ditto.).
2737         * tree-ssa-address.c (addr_for_mem_ref): (Ditto.).
2738         * dojump.c (prefer_and_bit_test): (Ditto.).
2739         * expr.c (convert_modes, reduce_to_bit_field_precision,
2740         const_vector_from_tree): (Ditto.).
2741         * expmed.c (mask_rtx, lshift_value): (Ditto.).
2742
2743 2010-04-20  Jan Hubicka  <jh@suse.cz>
2744
2745         * cgraph.c (cgraph_remove_node): Kill bodies in other partitoin.
2746         (dump_cgraph_node): Dump new flags.
2747         * cgraph.h (struct cgraph_node): Add flags
2748         reachable_from_other_partition and in_other_partition.
2749         (cgraph_can_remove_if_no_direct_calls_p): Functions used by
2750         other partition can not be removed.
2751         * cgraphunit.c (cgraph_mark_functions_to_output): Functions used by
2752         the other partition must be output; silence sanity checking on
2753         leaking functions bodies from other paritition.
2754         * lto-cgraph.c (reachable_from_other_partition_p): New function.
2755         (lto_output_node): Output new flags; do not sanity check that inline
2756         clones are output; drop lto_forced_extern_inline_p code; do not mock
2757         visibility flags at partition boundaries.
2758         (add_node_to): New function.
2759         (output_cgraph): Use it to sort functions so masters appear before
2760         clones.
2761         (input_overwrite_node): Input new flags.
2762         * passes.c (ipa_write_summaries): Do not call
2763         lto_new_extern_inline_states.
2764         * lto-section-out.c (forced_extern_inline,
2765         lto_new_extern_inline_states lto_delete_extern_inline_states,
2766         lto_force_functions_extern_inline, lto_forced_extern_inline_p): Kill.
2767         * lto-streamer.h (lto_new_extern_inline_states,
2768         * lto_delete_extern_inline_states, lto_force_functions_extern_inline,
2769         lto_forced_extern_inline_p): Kill.
2770
2771 2010-04-20  Richard Guenther  <rguenther@suse.de>
2772
2773         * tree-ssa-structalias.c (do_sd_constraint): Add edges only
2774         from vars that can have pointers.
2775         (process_constraint): Dump useless constraints.
2776
2777 2010-04-20  Richard Guenther  <rguenther@suse.de>
2778
2779         * tree-ssa-structalias.c (do_structure_copy): Properly handle DEREF.
2780         (dump_sa_points_to_info): Remove asserts.
2781         (init_base_vars): nothing_id isn't an escape point nor does it
2782         have pointers.
2783
2784 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
2785
2786         * tree.h (TYPE_REF_IS_RVALUE): Define.
2787         * dwarf2out.c (attr_checksum_ordered, is_type_die, is_comdat_die,
2788         should_move_die_to_comdat, prune_unused_types_walk): Handle
2789         DW_TAG_rvalue_reference_type like DW_TAG_reference_type.
2790         (modified_type_die, gen_reference_type_die): Emit
2791         DW_TAG_rvalue_reference_type instead of DW_TAG_reference_type
2792         if TYPE_REF_IS_RVALUE and -gdwarf-4.
2793
2794 2010-04-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2795
2796         PR target/43635
2797         * config/s390/s390.c (s390_emit_call): Turn direct into indirect
2798         calls for -fpic -m31 if they have been sibcall optimized.
2799
2800 2010-04-19  James E. Wilson  <wilson@codesourcery.com>
2801
2802         * config/ia64/ia64.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Make
2803         ar.lc fixed and call-used.
2804
2805         * config/ia64/ia64.c (TARGET_INVALID_WITHIN_DOLOOP): Define.
2806
2807 2010-04-19  Jan Hubicka  <jh@suse.cz>
2808
2809         * opts.c (decode_options): Disable whpr incompatible passes.
2810         * lto/lto.c (lto_1_to_1_map): Skip clones.
2811         (read_cgraph_and_symbols): Do not mark everything as needed.
2812         (do_whole_program_analysis): Do map only after optimizing;
2813         set proper cgraph_state; use passmanager.
2814
2815 2010-04-19  DJ Delorie  <dj@redhat.com>
2816
2817         * cfgexpand.c (expand_debug_expr): Check for mismatched modes in
2818         POINTER_PLUS_EXPR and fix them.
2819
2820 2010-04-19  Eric B. Weddington  <eric.weddington@atmel.com>
2821
2822         * config/avr/avr-devices.c (avr_mcu_types): Add support for new
2823         devices atmega644pa, attiny2313a, attiny24a, attiny261a, attiny4313,
2824         attiny44a, attiny861a, atmega16a, atmega168a, atmega164a, atmega165a,
2825         atmega169a, atmega169pa, atmega16hva2, atmega324a, atmega324pa,
2826         atmega325a, atmega3250a, atmega328, atmega329a, atmega329pa,
2827         atmega3290a, atmega48a, atmega644a, atmega645a, atmega645p,
2828         atmega6450a, atmega6450p, atmega649a, atmega649p, atmega6490a,
2829         atmega6490p, atmega64hve, atmega88a, atmega88pa, attiny461a, attiny84a,
2830         m3000. Remove support for devices atmega8m1, atmega8c1, atmega16c1,
2831         atmega4hvd, atmega8hvd, attiny327, m3000f, m3000s, m3001b.
2832         * config/avr/t-avr.c (MULTILIB_MATCHES): Same.
2833
2834 2010-04-19  Eric Botcazou  <ebotcazou@adacore.com>
2835
2836         * ifcvt.c (noce_try_cmove_arith): Fix long lines.
2837         (check_cond_move_block): Likewise.
2838         (cond_move_process_if_block): Likewise.
2839         (noce_find_if_block): Improve formatting.
2840         (find_if_header): Pass 0 to memset and tweak conditions.
2841         (cond_exec_find_if_block): Fix long lines and tweak conditions.
2842
2843 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2844
2845         * dwarf2out.c (lower_bound_default): For DW_LANG_Python return 0
2846         for -gdwarf-4.
2847
2848         PR middle-end/43337
2849         * tree-nested.c (convert_nonlocal_omp_clauses): OMP_CLAUSE_PRIVATE
2850         with non-local decl doesn't need chain.
2851
2852 2010-04-19  Vladimir Makarov  <vmakarov@redhat.com>
2853
2854         * ira-color.c (allocno_reload_assign): Avoid accumulating
2855         reload registers in ALLOCNO_TOTAL_CONFLICT_HARD_REGS.
2856
2857 2010-04-19  Martin Jambor  <mjambor@suse.cz>
2858
2859         * gimple.h (create_tmp_reg): Declare.
2860         * gimplify.c (create_tmp_reg): New function.
2861         (gimplify_return_expr): Use create_tmp_reg.
2862         (gimplify_omp_atomic): Likewise.
2863         (gimple_regimplify_operands): Likewise.
2864         * tree-dfa.c (make_rename_temp): Likewise.
2865         * tree-predcom.c (predcom_tmp_var): Likewise.
2866         (reassociate_to_the_same_stmt): Likewise.
2867         * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
2868         (get_replaced_param_substitute): Likewise.
2869         * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
2870         * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
2871         * tree-ssa-pre.c (get_representative_for): Likewise.
2872         (create_expression_by_pieces): Likewise.
2873         * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
2874         (create_tailcall_accumulator): Likewise.
2875
2876 2010-04-19  Martin Jambor  <mjambor@suse.cz>
2877
2878         * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
2879         new_stmt.
2880         (cgraph_materialize_all_clones): Assert !need_ssa_update_p.
2881
2882 2010-04-19  Richard Guenther  <rguenther@suse.de>
2883
2884         PR tree-optimization/43796
2885         * tree-vrp.c (adjust_range_with_scev): Lookup init and step
2886         from SCEV in the lattice.
2887         (vrp_visit_phi_node): Dump change.
2888
2889 2010-04-19  Richard Guenther  <rguenther@suse.de>
2890
2891         * configure.ac: Fix quoting around elf_getshstrndx ABI check.
2892         * configure: Re-generated.
2893
2894 2010-04-19  Richard Guenther  <rguenther@suse.de>
2895
2896         PR tree-optimization/43783
2897         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
2898         constant ARRAY_REF operands two and three if possible.
2899
2900 2010-04-19  Uros Bizjak  <ubizjak@gmail.com>
2901
2902         PR target/43766
2903         * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.
2904
2905 2010-04-19  Jie Zhang  <jie@codesourcery.com>
2906
2907         PR target/43662
2908         * reginfo.c (reinit_regs): Set caller_save_initialized_p to false.
2909
2910 2010-04-19  Ira Rosen  <irar@il.ibm.com>
2911
2912         PR tree-optimization/37027
2913         * tree-vectorizer.h (struct _loop_vec_info): Add new field reductions
2914         and macro to access it.
2915         (vectorizable_reduction): Add argument.
2916         (vect_get_slp_defs): Likewise.
2917         * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Collect reduction
2918         statements for possible use in SLP.
2919         (new_loop_vec_info): Initialize LOOP_VINFO_REDUCTIONS.
2920         (destroy_loop_vec_info): Free LOOP_VINFO_REDUCTIONS.
2921         (vect_create_epilog_for_reduction): Handle SLP. Modify documentation,
2922         add new argument.
2923         (vectorizable_reduction): Likewise.
2924         * tree-vect-stmts.c (vect_get_vec_defs): Update call to
2925         vect_get_slp_defs.
2926         (vectorizable_type_demotion, vectorizable_type_promotion,
2927         vectorizable_store): Likewise.
2928         (vect_analyze_stmt): Update call to vectorizable_reduction.
2929         (vect_transform_stmt): Likewise.
2930         * tree-vect-slp.c (vect_get_and_check_slp_defs): Handle reduction.
2931         (vect_build_slp_tree): Fix indentation. Check that there are no loads
2932         from different interleaving chains in same node.
2933         (vect_slp_rearrange_stmts): New function.
2934         (vect_supported_load_permutation_p): Allow load permutations for
2935         reductions. Call vect_slp_rearrange_stmts() to rearrange statements
2936         inside SLP nodes if necessary.
2937         (vect_analyze_slp_instance): Handle reductions.
2938         (vect_analyze_slp): Try to build SLP instances originating from groups
2939         of reductions.
2940         (vect_detect_hybrid_slp_stmts): Skip reduction statements.
2941         (vect_get_constant_vectors): Create initial vectors for reductions
2942         according to reduction code. Add new argument.
2943         (vect_get_slp_defs): Add new argument, pass it to
2944         vect_get_constant_vectors.
2945         (vect_schedule_slp_instance): Remove SLP tree root statements.
2946
2947 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2948
2949         * tree.h (ENUM_IS_SCOPED): Define.
2950         * dwarf2out.c (gen_enumeration_type_die): Add DW_AT_enum_class
2951         for ENUM_IS_SCOPED enums.
2952
2953 2010-04-18  Eric Botcazou  <ebotcazou@adacore.com>
2954
2955         * fold-const.c (fold_comparison): Use ssizetype.
2956         * gimple-fold.c (maybe_fold_offset_to_array_ref): Likewise.
2957         * ipa-prop.c (ipa_modify_call_arguments): Use sizetype.
2958         * tree-loop-distribution.c (build_size_arg_loc): Likewise.
2959         * tree-object-size.c (compute_object_sizes): Use size_type_node.
2960
2961         * tree.h (initialize_sizetypes): Remove parameter.
2962         (build_common_tree_nodes): Remove second parameter.
2963         * stor-layout.c (initialize_sizetypes): Remove parameter.
2964         Always create an unsigned type.
2965         (set_sizetype): Assert that the passed type is unsigned and simplify.
2966         * tree.c (build_common_tree_nodes): Remove second parameter.
2967         Adjust call to initialize_sizetypes.
2968         * c-decl.c (c_init_decl_processing): Remove second argument in call to
2969         build_common_tree_nodes.
2970
2971 2010-04-18  Matthias Klose  <doko@ubuntu.com>
2972
2973         * gcc.c (main): Search for liblto_plugin.so with mode R_OK.
2974
2975 2010-04-18  Ira Rosen  <irar@il.ibm.com>
2976
2977         PR tree-optimization/43771
2978         * tree-vect-slp.c (vect_supported_load_permutation_p): Check that
2979         load permutation doesn't have gaps.
2980
2981 2010-04-18  Jan Hubicka  <jh@suse.cz>
2982
2983         * i386.md (UNSPEC_SSE_PROLOGUE_SAVE_LOW): New.
2984         (sse_prologue_save_insn expander): Use new pattern.
2985         (sse_prologue_save_insn1): New pattern and splitter.
2986         (sse_prologue_save_insn): Update to deal also with 64bit aligned
2987         blocks.
2988         * i386.c (setup_incoming_varargs_64): Do not compute jump
2989         destination here.
2990         (ix86_gimplify_va_arg): Update alignment needed.
2991         (ix86_local_alignment): Do not align all local arrays to 128bit.
2992
2993 2010-04-17  Jan Hubicka  <jh@suse.cz>
2994
2995         * ipa-inline.c (cgraph_early_inlining): Handle flattening too.
2996
2997 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2998
2999         * arm.md (negdi2): Remove redundant code to force values into a
3000         register.
3001
3002 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
3003
3004         * arm/bpabi.S: Add EABI alignment attributes to objects.
3005         * arm/bpabi-v6m.S: Likewise.
3006         * arm/crti.asm: Likewise.
3007         * arm/crtn.asm: Likewise.
3008         * arm/lib1funcs.asm: Likewise.
3009         * arm/libunwind.S: Likewise.
3010
3011 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
3012
3013         * arm-protos.h (tune_params): New structure.
3014         * arm.c (current_tune): New variable.
3015         (arm_constant_limit): Delete.
3016         (struct processors): Add pointer to the tune parameters.
3017         (arm_slowmul_tune): New tuning option.
3018         (arm_fastmul_tune, arm_xscale_tune, arm_9e_tune): Likewise.
3019         (all_cores): Adjust to pick up the tuning model.
3020         (arm_constant_limit): New function.
3021         (arm_override_options): Select the appropriate tuning model.  Delete
3022         initialization of arm_const_limit.
3023         (arm_split_constant): Use the new constant-limit model.
3024         (arm_rtx_costs): Pick up the current tuning model.
3025         * arm.md (is_strongarm, is_xscale): Delete.
3026         * arm-generic.md (load_ldsched_x, load_ldsched): Test explicitly
3027         for Xscale variant architectures.
3028         (mult_ldsched_strongarm, mult_ldsched): Similarly for StrongARM.
3029
3030 2010-04-17  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
3031
3032         * config/arm/arm.c (arm_gen_constant): Remove unused variable
3033         can_shift.
3034         (arm_rtx_costs_1): Remove unused variable extra_cost.
3035         (arm_unwind_emit_set): Use variable offset.
3036         (thumb1_output_casesi): Remove unused variable flags.
3037
3038 2010-04-16  Jeff Law  <law@redhat.com>
3039
3040         * ira-color.c (ira_reassign_pseudos): Collect and sort all the pseudos
3041         needing assignment rather than doing a two-phase assignment.  Remove
3042         unused variable 'm'.
3043
3044 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
3045
3046         PR bootstrap/43767
3047         * alias.c (memrefs_conflict_p): Don't crash if CSELIB_VAL_PTR is NULL.
3048
3049 2010-04-16  Doug Kwan  <dougkwan@google.com>
3050
3051         * tree-ssa-reassoc.c (struct operand_entry): Add new field ID.
3052         (next_operand_entry_id): New static variable.
3053         (sort_by_operand_rank): Stabilize qsort comparator by using unique IDs.
3054         (add_to_ops_vec): Assigned unique ID to operand entry.
3055         (struct oecount_s): New field ID.
3056         (oecount_cmp): Stabilize qsort comparotor by using unique IDs.
3057         (undistribute_ops_list): Assign unique IDs to oecounts.
3058         (init_reassoc): reset next_operand_entry_id.
3059
3060 2010-04-16  Doug Kwan  <dougkwan@google.com>
3061
3062         * config/i386/i386.md (*jcc_bt<mode>): Fix build breakage by adding
3063         missing left parenthesis.
3064
3065 2010-04-16  Uros Bizjak  <ubizjak@gmail.com>
3066
3067         * config/i386/i386.md (*bt<mode>): Macroize insn from *btsi and
3068         *btdi_rex64 using SWI48 mode iterator.
3069         (*jcc_bt<mode>): Ditto from *jcc_btsi and *jcc_btdi_rex64.
3070         (*jcc_bt<mode>_mask): Ditto from *jcc_btsi_mask and
3071         *jcc_btdi_mask_rex64.
3072
3073 2010-04-16  Anatoly Sokolov  <aesok@post.ru>
3074
3075         * double-int.h (tree_to_double_int): Convert to macro.
3076         * double-int.c (tree_to_double_int): Remove.
3077
3078 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
3079
3080         PR debug/43762
3081         * dwarf2out.c (add_bound_info): Always call loc_list_from_tree
3082         with want_address 2 and in case a single element list might be
3083         possible, call it again with want_address 0.
3084
3085 2010-04-12  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
3086
3087         * config/h8300/h8300.c (print_operand) : Modify case 'V' and
3088         case 'W' print operands for HI mode.
3089         * config/h8300/h8300.h (Y0, Y2) : New constraints.
3090         * config/h8300/h8300.md (bclrqi_msx, bclrhi_msx): New patterns
3091         (bsetqi_msx, bsethi_msx, bnotqi_msx, bnothi_msx): Likewise.
3092         * config/h8300/predicate.md (bit_register_indirect_operand): New.
3093
3094         * config/h8300/h8300.h (OK_FOR_U): Support 'U' constraint for H8300SX.
3095
3096         * config/h8300/h8300.md (movqi_h8sx, movhi_h8sx, movsi_h8sx,
3097         cmphi_h8300hs_znvc, cmpsi, addhi3_h8sx) : Emit instructions in
3098         #xx:3 and #xx:4 mode.
3099
3100         * config/h8300/h8300.md (inverted load with HImode dest): Add
3101         support for H8300SX.
3102
3103         * config/h8300/predicate.md (bit_operand): Allow immediate values that
3104         satisfy 'U' constraint.
3105
3106 2010-04-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3107
3108         * configure.ac: Check for elf_getshdrstrndx or elf_getshstrndx flavor.
3109         * configure: Regenerate.
3110         * config.in: Regenerate.
3111         * doc/install.texi (Prerequisites): Document that Solaris 2 libelf
3112         works.
3113
3114 2010-04-16  Richard Guenther  <rguenther@suse.de>
3115
3116         * tree.h (struct tree_decl_minimal): Move pt_uid ...
3117         (struct tree_decl_common): ... here.
3118         (DECL_PT_UID): Adjust.
3119         (SET_DECL_PT_UID): Likewise.
3120         (DECL_PT_UID_SET_P): Likewise.
3121
3122 2010-04-16  Richard Guenther  <rguenther@suse.de>
3123
3124         PR tree-optimization/43572
3125         * tree-ssa-alias.h (call_may_clobber_ref_p): Declare.
3126         * tree-ssa-alias.c (call_may_clobber_ref_p): Export.
3127         * tree-flow.h (is_call_clobbered): Remove.
3128         * tree-flow-inline.h (is_call_clobbered): Likewise.
3129         * tree-dfa.c (dump_variable): Do not dump call clobber state.
3130         * tree-nrv.c (dest_safe_for_nrv_p): Use the alias oracle.
3131         (execute_return_slot_opt): Adjust.
3132         * tree-tailcall.c (suitable_for_tail_opt_p): Remove
3133         check for call clobbered vars here.
3134         (find_tail_calls): Move tailcall verification to the
3135         proper place.
3136
3137 2010-04-16  Diego Novillo  <dnovillo@google.com>
3138
3139         * doc/invoke.texi: Explain how are unrecognized -Wno- warnings handled.
3140
3141 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
3142
3143         PR target/40603
3144         * config/arm/arm.md (cbranchqi4): New pattern.
3145         * config/arm/predicates.md (const0_operand,
3146         cbranchqi4_comparison_operator): New predicates.
3147
3148 2010-04-16  Richard Guenther  <rguenther@suse.de>
3149
3150         * gimple-pretty-print.c (dump_gimple_phi): Dump alias info.
3151         (dump_gimple_stmt): Likewise.
3152
3153 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
3154
3155         * recog.h (struct recog_data): New field is_operator.
3156         (struct insn_operand_data): New field is_operator.
3157         * recog.c (extract_insn): Set recog_data.is_operator.
3158         * genoutput.c (output_operand_data): Emit code to set the
3159         is_operator field.
3160         * reload.c (find_reloads): Use it rather than testing for an
3161         empty constraint string.
3162
3163         PR target/41514
3164         * config/arm/arm.md (cbranchsi4_insn): Renamed from "*cbranchsi4_insn".
3165         If the previous insn is a cbranchsi4_insn with the same arguments,
3166         omit the compare instruction.
3167
3168         * config/arm/arm.md (addsi3_cbranch): If destination is a high
3169         register, inputs must be low registers and we need a low register
3170         scratch.  Handle alternative 2 like alternative 3.
3171
3172 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
3173
3174         * alias.c (memrefs_conflict_p): If x and y are the same VALUE,
3175         don't call get_addr on both.  If one expression is a VALUE and
3176         the other a REG, check VALUE's locs if the REG isn't among them.
3177
3178 2010-04-16  Christian Bruel  <christian.bruel@st.com>
3179
3180         * config/sh/sh.h (sh_frame_pointer_required): New function.
3181         * config/sh/sh.h (TARGET_FRAME_POINTER_REQUIRED): New macro.
3182         (flag_omit_frame_pointer) Set.
3183         (MASK_ACCUMULATE_OUTGOING_ARGS) Define and Set.
3184         (rounded_frame_size): Adjust size with outgoing_args_size.
3185         (sh_set_return_address): Must return from stack pointer.
3186         * gcc/config/sh/sh.h (CAN_DEBUG_WITHOUT_FP): Define.
3187         (SUBTARGET_FRAME_POINTER_REQUIRED): Define.
3188         (ACCUMULATE_OUTGOING_ARGS): Define.
3189         * doc/invoke.texi (maccumulate-outgoing-args): Document for SH.
3190         * gcc/config/sh/sh.opt: (maccumulate-outgoing-args): New option.
3191
3192 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
3193
3194         PR target/43471
3195         * config/sh/sh.c (sh_legitimize_reload_address): Use
3196         MAYBE_BASE_REGISTER_RTX_P instead of BASE_REGISTER_RTX_P.
3197         Remove a unneeded check for offset_base.
3198
3199 2010-04-15  H.J. Lu  <hongjiu.lu@intel.com>
3200
3201         * configure: Regenerated.
3202
3203 2010-04-15  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3204
3205         * config/s390/s390.c (s390_call_save_register_used): Switch back
3206         to HARD_REGNO_NREGS.
3207
3208 2010-04-15  Richard Guenther  <rguenther@suse.de>
3209
3210         * alias.c (alias_set_subset_of): Handle alias-set zero
3211         child properly.
3212
3213 2010-04-15  Mark Shinwell  <shinwell@codesourcery.com>
3214             Julian Brown  <julian@codesourcery.com>
3215
3216         * config/arm/thumb2.md (thumb2_movsi_insn): Split ldr and str
3217         alternatives according to use of high and low regs.
3218         * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
3219         * config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Use high regs when
3220         optimizing for size on Thumb-2.
3221
3222 2010-04-15  Thomas Schwinge  <tschwinge@gnu.org>
3223
3224         * config.gcc <i[34567]86-*-gnu*>: Handle softfp as for Linux.
3225
3226 2010-04-15  Richard Guenther  <rguenther@suse.de>
3227
3228         * tree-ssa-structalias.c (struct variable_info): Add
3229         is_fn_info flag.
3230         (new_var_info): Initialize it.
3231         (dump_constraints): Support printing last added constraints.
3232         (debug_constraints): Adjust.
3233         (dump_constraint_graph): Likewise.
3234         (make_heapvar_for): Check for NULL cfun.
3235         (get_function_part_constraint): New function.
3236         (get_fi_for_callee): Likewise.
3237         (find_func_aliases): Properly implement IPA PTA constraints.
3238         (process_ipa_clobber): New function.
3239         (find_func_clobbers): Likewise.
3240         (insert_into_field_list_sorted): Remove.
3241         (create_function_info_for): Properly allocate vars for IPA mode.
3242         Do not use insert_into_field_list_sorted.
3243         (create_variable_info_for): Properly generate constraints for
3244         global vars in IPA mode.
3245         (dump_solution_for_var): Always dump the solution.
3246         (set_uids_in_ptset): Initialize DECL_PT_UID if in ipa-mode.
3247         (find_what_var_points_to): Adjust.
3248         (pt_solution_set): Change.
3249         (pt_solution_ior_into): New function.
3250         (pt_solution_empty_p): Export.
3251         (pt_solution_includes_global): Adjust.
3252         (pt_solution_includes_1): Likewise.
3253         (pt_solutions_intersect_1): Likewise.
3254         (dump_sa_points_to_info): Check some invariants.
3255         (solve_constraints): Move constraint dumping ...
3256         (compute_points_to_sets): ... here.
3257         (ipa_pta_execute): ... and here.
3258         (compute_may_aliases): Do not re-compute points-to info
3259         locally if IPA info is available.
3260         (ipa_escaped_pt): New global var.
3261         (ipa_pta_execute): Properly implement IPA PTA.
3262         * tree-into-ssa.c (dump_decl_set): Support dumping
3263         decls not in referenced-vars.
3264         * tree-flow.h (struct gimple_df): Add ipa_pta flag.
3265         * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Adjust.
3266         (dump_points_to_solution): Likewise.
3267         * tree-dfa.c (dump_variable): Also dump DECL_PT_UID.
3268         * tree-inline.c (remap_ssa_name): Copy IPA points-to solution.
3269         (remap_gimple_stmt): Reset call clobber/use information if necessary.
3270         (copy_decl_to_var): Copy DECL_PT_UID.
3271         (copy_result_decl_to_var): Likewise.
3272         * tree.c (make_node_stat): Initialize DECL_PT_UID.
3273         (copy_node_stat): Copy it.
3274         * tree.h (DECL_PT_UID): New macro.
3275         (SET_DECL_PT_UID): Likewise.
3276         (DECL_PT_UID_SET_P): Likewise.
3277         (struct tree_decl_minimal): Add pt_uid member.
3278         * tree-ssa-alias.h (struct pt_solution): Add ipa_escaped flag.
3279         (pt_solution_empty_p): Declare.
3280         (pt_solution_set): Adjust.
3281         (ipa_escaped_pt): Declare.
3282         * cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
3283         * gimple-pretty-print.c (pp_points_to_solution): New function.
3284         (dump_gimple_call): Dump call clobber/use information.
3285         * tree-dump.c (dump_option_value_in): Add TDF_ALIAS entry.
3286         * tree-pass.h (TDF_ALIAS): New dump option.
3287         * tree-pretty-print.c (dump_decl_name): Dump DECL_PT_UID if asked to.
3288         * doc/invoke.texi (-fipa-pta): Update documentation.
3289
3290 2010-04-15  Richard Guenther  <rguenther@suse.de>
3291
3292         * Makefile.in (OBJS-common): Add gimple-fold.o.
3293         (gimple-fold.o): New rule.
3294         * tree.h (maybe_fold_offset_to_reference,
3295         maybe_fold_offset_to_address, maybe_fold_stmt_addition): Move
3296         prototypes ...
3297         * gimple.h: ... here.
3298         * tree-flow.h (fold_stmt, fold_stmt_inplace, get_symbol_constant_value,
3299         may_propagate_address_into_dereference): Move prototypes ...
3300         * gimple.h: ... here.
3301         * tree-ssa-ccp.c (get_symbol_constant_value,
3302         may_propagate_address_into_dereference, maybe_fold_offset_to_array_ref,
3303         maybe_fold_offset_to_component_ref, maybe_fold_offset_to_reference,
3304         maybe_fold_offset_to_address, maybe_fold_stmt_indirect,
3305         maybe_fold_stmt_addition, maybe_fold_reference, get_maxval_strlen,
3306         ccp_fold_builtin, fold_gimple_assign, fold_gimple_cond,
3307         fold_gimple_call, fold_stmt_1, fold_stmt, fold_stmt_inplace,
3308         gimplify_and_update_call_from_tree): Move ...
3309         * gimple-fold.c: ... here.  New file.
3310         (ccp_fold_builtin): Rename to ...
3311         (gimple_fold_builtin): ... this.
3312         * tree-ssa-ccp.c (execute_fold_all_builtins): Adjust.
3313
3314 2010-04-15  Richard Guenther  <rguenther@suse.de>
3315
3316         * fold-const.c (LOWPART, HIGHPART, BASE, encode, decode,
3317         fit_double_type, force_fit_type_double, add_double_with_sign,
3318         neg_double, mul_double_with_sign, lshift_double, rshift_double,
3319         lrotate_double, rrotate_double, div_and_round_double): Move ...
3320         * double-int.c: ... here.
3321         * tree.h (force_fit_type_double, fit_double_type, add_double_with_sign,
3322         add_double, neg_double, mul_double_with_sign, mul_double,
3323         lshift_double, rshift_double, lrotate_double, rrotate_double,
3324         div_and_round_double): Move prototypes ...
3325         * double-int.h: ... here.
3326
3327 2010-04-15  Bernd Schmidt  <bernds@codesourcery.com>
3328
3329         PR target/43742
3330         * config/sh/sh.md (doloop_end_split, dect): Undo previous patch.  Use
3331         matching constraints to ensure inputs match the output.
3332
3333 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
3334
3335         PR target/43742
3336         * config/sh/sh.md (doloop_end_split): Remove "+r" constraint
3337         in an input-only operand.
3338
3339 2010-04-15  Anatoly Sokolov  <aesok@post.ru>
3340
3341         * double-int.h (HOST_BITS_PER_DOUBLE_INT): Define.
3342         (double_int_not, double_int_lshift, double_int_rshift): Declare.
3343         (double_int_negative_p): Convert to static inline function.
3344         * double-int.c (double_int_lshift, double_int_lshift): New functions.
3345         (double_int_negative_p): Remove.
3346         * tree.h (lshift_double, rshift_double):
3347         * tree.c (build_low_bits_mask): Clean up, use double_int_* functions.
3348         * fold-const.c (fold_convert_const_int_from_real,
3349         fold_convert_const_int_from_fixed, div_if_zero_remainder): (Ditto.).
3350         (lshift_double): Change type of arith argument to bool.
3351         (rshift_double): Change type of arith argument to bool. Correct
3352         comment.
3353         * expmed.c (mask_rtx, lshift_value): (Ditto.).
3354
3355 2010-04-14  Bernd Schmidt  <bernds@codesourcery.com>
3356
3357         PR target/21803
3358         * ifcvt.c (cond_exec_process_if_block): Look for identical sequences
3359         at the start and end of the then/else blocks, and omit them from the
3360         conversion.
3361         * cfgcleanup.c (flow_find_cross_jump): No longer static.  Remove MODE
3362         argument; all callers changed.  Pass zero to old_insns_match_p instead.
3363         (flow_find_head_matching_sequence): New function.
3364         (old_insns_match_p): Check REG_EH_REGION notes for calls.
3365         * basic-block.h (flow_find_cross_jump,
3366         flow_find_head_matching_sequence): Declare functions.
3367
3368 2010-04-14  Jason Merrill  <jason@redhat.com>
3369
3370         PR c++/36625
3371         * c-common.c (attribute_takes_identifier_p): New fn.
3372         * c-common.h: Declare it.
3373
3374 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3375
3376         * config/i386/i386.md (*divmod<mode>4): Remove stray "&&" from
3377         splitter condition.
3378         (*udivmod<mode>4): Ditto.
3379
3380 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3381
3382         * config/i386/i386.md (maxmin_int): Rename code attribute from
3383         maxminiprefix and update all users.
3384         (maxmin_float): Ditto from maxminfprefix.
3385         (logic): Ditto from logicprefix.
3386         (absneg_mnemonic): Ditto from absnegprefix.
3387         * config/i386/mmx.md: Update all users of maxminiprefix,
3388         maxminfprefix and logicprefix for rename.
3389         * config/i386/sse.md: Ditto.
3390         * config/i386/sync.md (sync_<code><mode>): Update for
3391         logicprefix rename.
3392
3393 2010-04-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3394
3395         PR 42966
3396         * diagnostics.c (diagnostic_report_diagnostic): Mark specially
3397         warnings converted to errors.
3398
3399 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3400
3401         * config/alpha/alpha.c (alpha_adjust_cost): Remove set but not
3402         used insn_type variable.
3403         (function_value): Add ATTRIBUTE_UNUSED to dummy variable declaration
3404         to avoid set-but-not-used warning.
3405
3406 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3407
3408         * df-core.c (df_ref_debug): Change format string placeholder
3409         from 0x%x to %#x.
3410         * dwarf2asm.c (dw2_asm_output_data_raw,
3411         dw2_asm_output_data_uleb128_raw, dw2_asm_output_data_uleb128,
3412         dw2_asm_output_data_sleb128_raw, dw2_asm_output_data_sleb128): Ditto.
3413         * dwarf2out.c (output_cfi, output_cfi_directive,
3414         dwarf2out_do_cfi_startproc, output_loc_sequence_raw,
3415         output_cfa_loc_raw, output_die, output_ranges, output_file_names):
3416         Ditto.
3417         * genattrtab.c (write_test_expr, write_attr_valueq): Ditto.
3418         * print-rtl.c (print_rtx): Ditto.
3419
3420 2010-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
3421
3422         PR middle-end/42694
3423         * builtins.c (expand_builtin_pow_root): New function to expand pow
3424         calls with exponents 0.25, 0.50, 0.75, 1./3., and 1./6. into a
3425         series of sqrt and cbrt calls under -ffast-math.
3426         (expand_builtin_pow): Call it.
3427
3428 2010-04-14  Michael Matz  <matz@suse.de>
3429
3430         PR tree-optimization/42963
3431         * tree-cfg.c (touched_switch_bbs): New static variable.
3432         (group_case_labels_stmt): New function broken out from ...
3433         (group_case_labels): ... here, use the above.
3434         (start_recording_case_labels): Allocate touched_switch_bbs.