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* cgraph.c (cgraph_mark_address_taken_node): No longer imply needed flag.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2010-05-12  Jan Hubicka  <jh@suse.cz>
2
3         * cgraph.c (cgraph_mark_address_taken_node): No longer imply needed flag.
4         * cgraph.h (cgraph_only_called_directly_p,
5         cgraph_can_remove_if_no_direct_calls_p): test address_taken flag.
6         (cgraph_can_remove_if_no_direct_calls_and_refs_p): New function.
7         * cgraphunit.c (cgraph_mark_functions_to_output): Test address_taken.
8         (assemble
9         * ipa.c (cgraph_remove_unreachable_nodes): Use
10         cgraph_can_remove_if_no_direct_calls_and_refs_p; clear address_taken flags.
11         * tree-inline.c (copy_bb): Check address_taken flag.
12         * tree-profile.c (tree_gen_ic_func_profiler): Check address_taken and
13         externally_visible flag.
14
15 2010-05-12  Jason Merrill  <jason@redhat.com>
16
17         PR bootstrap/44048
18         PR target/44099
19         * dbxout.c (dbxout_type): Remove NULLPTR_TYPE handling.
20         * sdbout.c (plain_type_1): Likewise.
21         * dwarf2out.c (is_base_type): Likewise.
22         (gen_type_die_with_usage): Likewise.  Generate
23         DW_TAG_unspecified_type for any LANG_TYPE.
24
25 2010-05-12  Jan Hubicka  <jh@suse.cz>
26
27         * cgraphbuild.c (build_cgraph_edges, rebuild_cgraph_edges): Build
28         indrect edges too.
29         * cgraph.c (cgraph_create_indirect_edge): Take ecf_flags argument.
30         (cgraph_clone_edge): Update.
31         (cgraph_node_remove_callees): Remove indirect calls too.
32         * cgraph.h (cgraph_indirect_call_info): Add ecf_flags.
33         (cgraph_create_indirect_edge): Update prototype.
34         * ipa-reference.c (has_proper_scope_for_analysis): Rename to
35         is_proper_for_analysis.
36         (add_new_function, visited_nodes, function_insertion_hook_holder,
37         get_local_reference_vars_info, mark_address_taken, mark_address,
38         mark_load, mark_store, check_asm_memory_clobber, check_call,
39         scan_stmt_for_static_refs, scan_initializer_for_static_refs): Remove.
40         (ipa_init): Do not initialize visited_nodes;
41         function_insertion_hook_holder.
42         (analyze_variable): Rewrite.
43         (analyze_function): Rewrite.
44         (copy_local_bitmap): Remove.
45         (duplicate_node_dat): Do not duplicate local info.
46         (generate_summary): Simplify to only walk cgraph.
47         (write_node_summary_p, ipa_reference_write_summary,
48         ipa_reference_read_summary): Remove.
49         (propagate): Do not remove function insertion;
50         generate summary.
51         (pass_ipa_reference): NULLify summary handling fields.
52         * lto-cgraph.c (lto_output_edge): Output ecf_flags.
53         (input_edge): Input ecf_flags.
54         * ipa-prop.c (ipa_note_parm_call): Expect edge to be around.
55         (update_indirect_edges_after_inlining): Ignore edges with unknown
56         param.
57
58 2010-05-12  Sriraman Tallam  <tmsriram@google.com>
59
60         * implicit-zee.c: New file.
61         * tree-pass.h (pass_implicit_zee): Declare.
62         * passes.c (init_optimization_passes): Add zee pass.
63         * common.opt (fzee): New flag.
64         * timevar.def (TV_ZEE): Define.
65         * config/i386/i386.c (optimization_options): Turn on ZEE for level 2
66         and beyond.
67         * Makefile.in (implicit-zee.o): Add new build file.
68
69 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
70             Nathan Froyd  <froydnj@codesourcery.com>
71
72         * c-common.c (sync_resolve_params): Remove write-only variable.
73
74 2010-05-12  Anatoly Sokolov  <aesok@post.ru>
75
76         * target.h (struct gcc_target): Add mode_dependent_address_p field.
77         * target-def.h (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
78         (TARGET_INITIALIZER): Use TARGET_MODE_DEPENDENT_ADDRESS_P.
79         * targhooks.c (default_mode_dependent_address_p): New function.
80         * targhooks.h (default_mode_dependent_address_p): Declare function.
81         * doc/tm.texi (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
82         (GO_IF_MODE_DEPENDENT_ADDRESS): Update.
83         * recog.c: (mode_dependent_address_p): Call mode_dependent_address_p
84         target hook. Change return type to bool.
85         * recog.h: (mode_dependent_address_p): Change return type to bool.
86
87 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
88             Nathan Froyd  <froydnj@codesourcery.com>
89
90         * tree-mudflap.c (build_function_type_0, build_function_type_1,
91         build_function_type_2, build_function_type_3): Remove.
92         (mudflap_init): Use build_function_type_list.
93
94 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
95             Nathan Froyd  <froydnj@codesourcery.com>
96
97         * coverage.c (build_fn_info_value): Call build_constructor instead of
98         build_constructor_from_list.
99         (build_ctr_info_value): Likewise.
100         (build_gcov_info): Likewise.
101
102 2010-05-12  Nathan Froyd  <froydnj@codesourcery.com>
103
104         * tree.c (build_constructor): Compute TREE_CONSTANT for the
105         resultant constructor.
106         (build_constructor_single): Don't set TREE_CONSTANT.
107         (build_constructor_from_list): Don't compute TREE_CONSTANT.
108
109 2010-05-12  Jan Hubicka  <jh@suse.cz>
110
111         * cgraph.h (struct varpool_node): Add aux.
112         * varasm.c (find_decl_and_mark_needed): Force output of varpool nodes.
113         * varpool.c (varpool_remove_node): Do not remove initializer.
114         (varpool_reset_queue): Export.
115         (varpool_finalize_decl): Volatile vars are forced to be output.
116         * lto-symtab.c (lto_varpool_replace_node): Clear out initializer of
117         replaced decl.
118         * ipa.c (enqueue_cgraph_node, enqueue_varpool_node,
119         process_references, varpool_can_remove_if_no_refs): New functions.
120         (cgraph_remove_unreachable_nodes): Handle variables too.
121
122 2010-05-12  H.J. Lu  <hongjiu.lu@intel.com>
123
124         PR target/44088
125         * config/i386/sse.md (*avx_vmmaskcmp<mode>3): New.
126
127 2010-05-12  Jakub Jelinek  <jakub@redhat.com>
128
129         PR middle-end/44085
130         * gimplify.c (enum omp_region_type): Add ORT_UNTIED_TASK,
131         change value of ORT_TASK.
132         (new_omp_context): Handle ORT_UNTIED_TASK like ORT_TASK.
133         (omp_notice_threadprivate_variable): New function.
134         (omp_notice_variable): Call it for threadprivate variables.
135         If enclosing ctx is a task, print enclosing task rather than
136         enclosing parallel.  Handle ORT_UNTIED_TASK like ORT_TASK.
137         (gimplify_omp_task): Pass ORT_UNTIED_TASK instead of ORT_TASK
138         if task has untied clause.
139
140         PR debug/42278
141         * dwarf2out.c (base_type_die): Don't add name attribute here.
142         (modified_type_die): Instead of sizetype use
143         its underlying original type.  If a DW_TAG_base_type doesn't
144         have name added, add __unknown__.
145         (dwarf2out_imported_module_or_decl_1): Don't call base_type_die,
146         always call force_type_die instead.
147
148 2010-05-12  Maxim Kuvyrkov  <maxim@codesourcery.com>
149
150         * targhooks.c (default_stack_protect_guard): Avoid sharing RTL
151         for __stack_chk_guard.
152
153 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
154
155         * c-opts.c (c_common_parse_file): If start_end_main_source_file,
156         don't call start_source_file debug hook here...
157         (finish_options): ... but here, after outputting predefined and
158         command line defines and undefs.
159
160         PR middle-end/44071
161         * cfglayout.c (fixup_reorder_chain): Allow asm goto to have
162         no fallthru edge.
163         * cfgcleanup.c (try_optimize_cfg): When in cfglayout mode
164         optimizing away empty bb with no successors, move over its
165         footer chain to fallthru predecessor.
166         * cfgrtl.c (patch_jump_insn): Update also REG_LABEL_OPERAND.
167         (rtl_split_edge): For asm goto call patch_jump_insn even if
168         splitting fallthru edge.
169
170         PR c++/44059
171         * config/elfos.h (ASM_DECLARE_OBJECT_NAME): Use qnu_unique_object
172         even for DECL_ONE_ONLY DECL_ARTIFICIAL !TREE_READONLY decls.
173         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Likewise.
174         * dwarf2asm.c (dw2_output_indirect_constant_1): Set TREE_READONLY
175         on DW.ref.* decls.
176
177         PR c++/44062
178         * c-parser.c (c_parser_expression): Mark LHS of a comma
179         expression as read if it is a decl, handled component or
180         COMPOUND_EXPR with that on the RHS.
181         * c-typeck.c (c_process_expr_stmt): Mark RHS of COMPOUND_EXPR
182         if it is a decl or handled component.
183
184 2010-05-11  Jan Hubicka  <jh@suse.cz>
185
186         * lto-symtab.c (lto_symtab_free): New function.
187         * lto-streamer.h (lto_symtab_free): Declare.
188
189 2010-05-11  Jan Hubicka  <jh@suse.cz>
190
191         * lto-cgraph.c (reachable_from_other_partition_p): Export; do not assume
192         that if function is needed it is reachable.
193         (lto_output_node): See if it the function is reachable or referenced.
194         (output_cgraph): Update call of lto_output_node.
195         * lto-streamer.h (reachable_from_other_partition_p): Declare.
196
197 2010-05-11  Jan Hubicka  <jh@suse.cz>
198
199         * crtstuff.c (__JCR_LIST__, __DTOR_END__, __JCR_END__, __FRAME_END__):
200         Mark as used.
201
202 2010-05-11  Jan Hubicka  <jh@suse.cz>
203
204         PR tree-optimize/44063
205         * ipa-inline.c (cgraph_edge_badness): Move always inlines to top of queue.
206         (cgraph_decide_inlining_of_small_function): Skip check when disrgarding
207         limits.
208         (estimate_function_body_sizes): Compute sizes even when disregarding.
209
210 2010-05-11  Kai Tietz  <kai.tietz@onevision.com>
211
212         * collect2.c (maybe_lto_object_file): Add x64-coff magic and check.
213
214 2010-05-11  Jan Hubicka  <jh@suse.cz>
215
216         * lto-cgraph.c (output_cgraph): Remove loop adding all varpool nodes
217         into every boundary.
218
219 2010-05-11  Jan Hubicka  <jh@suse.cz>
220
221         * matrix-reorg.c (matrix_reorg): Rebuild edges.
222
223 2010-05-11  Jan Hubicka  <jh@suse.cz>
224
225         * lto-streamer.c (lto_streamer_cache_add_to_node_array,
226         lto_streamer_cache_delete): Put nodes into heap.
227         * lto-streamer.h (struct lto_streamer_cache_d): Nodes vector is in
228         heap.
229
230 2010-05-11  Jan Hubicka  <jh@suse.cz>
231
232         * cgraphbuild.c (cgraph_rebuild_references): New.
233         * cgraph.c (cgraph_mark_reachable_node): Accept references to optimized
234         out extern inlines.
235         * cgraph.h (cgraph_rebuild_references): Declare.
236         * tree-inline.c (tree_function_versioning): Use it.
237         * ipa-struct-reorg.c (do_reorg_for_func): Likewise.
238
239 2010-05-11  Jan Hubicka  <jh@suse.cz>
240
241         * cgraph.c: Include ipa-utils.h
242         (cgraph_create_virtual_clone): Update references.
243         * Makefile.in (cgraph.o): Add dependency at ipa-utils.h
244
245 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
246
247         * tree-ssa-loop-prefetch.c (prune_ref_by_group_reuse): Reset
248         prefetch_before to PREFETCH_ALL if to accesses "meet" beyond
249         cache size.
250
251 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
252
253         * tree-ssa-loop-prefetch.c: Add debug for dropped prefetches.
254
255 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
256
257         * gcc.c (execute): For -### don't quote arguments that
258         contain just alphanumerics and _/-. characters.
259         * doc/invoke.texi: Document that change for -###.
260
261         PR debug/44023
262         * df-problems.c (struct dead_debug): Add to_rescan field.
263         (dead_debug_init): Clear to_rescan field.
264         (dead_debug_finish): Rescan all debug insns in to_rescan
265         bitmap and free the bitmap.
266         (dead_debug_insert_before): Instead of rescanning debug insns
267         immediately queue their rescanning until dead_debug_finish.
268         (df_note_bb_compute): After dead_debug_add do continue instead
269         of break.
270
271 2010-05-10  Jakub Jelinek  <jakub@redhat.com>
272
273         PR debug/44028
274         * haifa-sched.c (schedule_insn): When clearing INSN_VAR_LOCATION_LOC,
275         clear also INSN_REG_USE_LIST.
276
277 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
278
279         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Undef.
280
281 2010-05-10  Jan Hubicka  <jh@suse.cz>
282
283         * lto-stramer-out.c (produce_asm_for_decls): Correct accidentally commited change.
284
285 2010-05-10  Jan Hubicka  <jh@suse.cz>
286
287         * passes.c (ipa_write_summaries_1, ipa_write_optimization_summaries): Allocate
288         encoders.
289         * lto-section-out.c (lto_new_out_decl_state): Do not allocate it here.
290         * lto-streamer.c (lto_streamer_cache_insert_1): Use alloc pool.
291         (lto_streamer_cache_create): Init alloc pool.
292         (lto_streamer_cache_delete): Free alloc pool.
293         * lto-streamer.h: Include alloc pool.
294         (lto_streamer_cache_d): Use alloc pool.
295         * lto-stramer-out.c (produce_asm_for_decls): Delete fn_out_states.
296
297 2010-05-10  Jan Hubicka  <jh@suse.cz>
298
299         * Makefile.in (cgraphbuild.o): Add dependency on except.h.
300         * cgraphbuild.c: Include except.h
301         (record_type_list, record_eh_tables): New function.
302         (build_cgraph_edges, rebuild_cgraph_edges): Use it.
303
304 2010-05-10  Jan Hubicka  <jh@suse.cz>
305
306         * crtstuff.c (force_to_data, __do_global_dtors_aux_fini_array_entry,
307         __frame_dummy_init_array_entry, force_to_data): Attribute as used
308         rather than unused.
309
310 2010-05-10  Michael Matz  <matz@suse.de>
311
312         * tree-ssa-reassoc.c (undistribute_ops_list): Use create_tmp_reg.
313         (can_reassociate_p): Use FLOAT_TYPE_P.
314         * tree-vectorizer.h (vect_is_simple_reduction): Rename to ...
315         (vect_force_simple_reduction): ... this.
316         * tree-parloops.c (gather_scalar_reductions): Use
317         vect_force_simple_reduction.
318         * tree-vect-loop.c (vect_is_simple_reduction_1): Rename from
319         vect_is_simple_reduction, add modify argument, if true rewrite
320         "a-b" into "a+(-b)".
321         (vect_is_simple_reduction, vect_force_simple_reduction): New
322         functions.
323         (vect_analyze_scalar_cycles_1): Use vect_force_simple_reduction.
324
325 2010-05-10  H.J. Lu  <hongjiu.lu@intel.com>
326             Vladimir Makarov  <vmakarov@redhat.com>
327
328         PR rtl-optimization/44012
329         * ira-build.c (remove_unnecessary_allocnos): Nullify
330         regno_allocno_map of the removed allocno.
331
332 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
333
334         * configure.ac (gcc_cv_ld_eh_gc_sections): Redirect objdump errors
335         to /dev/null.
336         * configure: Regenerate.
337
338 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
339
340         * config/sol2.c (solaris_assemble_visibility): Declare decl, vis
341         unused.
342         Define visibility_types, name, type inside HAVE_GAS_HIDDEN.
343         * configure.ac (gcc_cv_ld_hidden): Explain stages of visibility
344         support in Sun ld.
345         * configure: Regenerate.
346
347 2010-05-10  Richard Guenther  <rguenther@suse.de>
348
349         * lto-symtab.c (lto_symtab_entry_marked_p): Make entry
350         marked if the entry identifier is marked.
351
352 2010-05-10  Richard Guenther  <rguenther@suse.de>
353
354         * c-common.c (struct c_common_attributes): Add fnspec attribute.
355         (handle_fnspec_attribute): New function.
356         * gimple.h (gimple_call_return_flags): Declare.
357         (gimple_call_arg_flags): Likewise.
358         * gimple.c (gimple_call_arg_flags): New function.
359         (gimple_call_return_flags): Likewise.
360         * tree.h (EAF_DIRECT, EAF_NOCLOBBER, EAF_NOESCAPE, EAF_UNUSED):
361         New argument flags.
362         (ERF_RETURN_ARG_MASK, ERF_RETURNS_ARG, ERF_NOALIAS): New function
363         return value flags.
364         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Skip unused args.
365         * tree-ssa-structalias.c (make_constraint_from_heapvar): Split
366         main work to ...
367         (make_heapvar_for): ... this new function.
368         (handle_rhs_call): Handle fnspec attribute argument specifiers.
369         (handle_lhs_call): Likewise.
370         (find_func_aliases): Adjust.
371
372 2010-05-10  Richard Guenther  <rguenther@suse.de>
373
374         PR tree-optimization/44050
375         * tree-inline.c (tree_function_versioning): Clone the ipa-pta flag.
376
377 2010-05-10  Wei Guozhi  <carrot@google.com>
378
379         PR target/42879
380         * config/arm/thumb2.md (thumb2_tlobits_cbranch): New insn pattern.
381
382 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
383
384         PR c/10676
385         * c-typeck.c (lookup_field): Take a type directly.  Update
386         recursive calls.
387         (build_component_ref): Update call to lookup_field.
388         (set_init_label): Use lookup_field to find initialized field.
389         Handle returned list of fields like a sequence of designators.
390
391 2010-05-09  Richard Guenther  <rguenther@suse.de>
392
393         PR middle-end/44024
394         * fold-const.c (tree_single_nonzero_warnv_p): Properly
395         handle &FUNCTION_DECL.
396
397 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
398
399         PR c/4784
400         * c-decl.c (detect_field_duplicates_hash): New.  Handle anonymous
401         structures and unions recursively.
402         (detect_field_duplicates): Move duplicate detection with a hash to
403         detect_field_duplicates_hash.  Always use a hash if anonymous
404         structures or unions are present.
405         * doc/extend.texi (Unnamed Fields): Document that duplicate fields
406         give errors.
407
408 2010-05-09  H.J. Lu  <hongjiu.lu@intel.com>
409
410         PR target/44046
411         * config/i386/driver-i386.c (host_detect_local_cpu): Properly
412         detect Atom, Core 2 and Core i7.
413
414 2010-05-09  Richard Guenther  <rguenther@suse.de>
415
416         * gcc.c (store_arg): Handle temporary file deletion for
417         joined arguments.
418
419 2010-05-09  Richard Guenther  <rguenther@suse.de>
420
421         PR middle-end/44043
422         * ipa-inline.c (estimate_function_body_sizes): Return after
423         disregarding inline limits.
424
425 2010-05-09  Richard Guenther  <rguenther@suse.de>
426
427         * gcc.c (store_arg): Revert last change.
428
429 2010-05-08  Sandra Loosemore  <sandra@codesourcery.com>
430
431         PR middle-end/28685
432         * tree-ssa-reassoc.c (eliminate_redundant_comparison): New function.
433         (optimize_ops_list): Call it.
434
435 2010-05-08  Richard Guenther  <rguenther@suse.de>
436
437         PR tree-optimization/44030
438         * tree-ssa-pre.c (eliminate): Copy NECESSARY flag.  Set
439         NECESSARY flag if we propagate from a inserted expression.
440
441 2010-05-08  Eric Botcazou  <ebotcazou@adacore.com>
442
443         * gimple.c (gimple_types_compatible_p) <ARRAY_TYPE>: Treat bounds of
444         domain types as equal if they are both PLACEHOLDER_EXPRs.
445
446 2010-05-08  Richard Guenther  <rguenther@suse.de>
447
448         * lto-wrapper.c (run_gcc): Remove linker output from
449         command line for LTRANS invocation.
450
451 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
452
453         * config.gcc (i[34567]86-*-darwin*, x86_64-*-darwin*): Add
454         lto-macho as lto_binary_reader.
455         * target.h (struct gcc_target): New hooks lto_start and lto_end.
456         * target-def.h (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Define.
457         * cgraphunit.c (ipa_passes): Wrap LTO assembler output generation
458         in lto_start and lto_end calls.
459         (is_elf_or_coff): Rename to maybe_lto_object_file.  Add Mach-O
460         magic numbers.
461         (scan_prog_file): Update is_elf_or_coff call.
462         * doc/tm.text (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Document.
463
464         * collect2.c (main): Fix enum comparison.
465
466         * config/darwin-protos.h (darwin_asm_lto_start, darwin_asm_lto_end):
467         Add prototypes.
468         * darwin9.h (LINK_COMMAND_SPEC): Pass -flto and -fwhopr to the linker.
469         * darwin.h (LINK_COMMAND_SPEC): Likewise.  Define TARGET_ASM_LTO_START
470         and TARGET_ASM_LTO_END.
471         * darwin.c: Include obstack.h and lto-streamer.h.
472         (lto_section_names_offset, lto_section_names_obstack,
473         lto_asm_out_file, lto_asm_out_name, saved_asm_out_file): New static
474         global variables.
475         (LTO_SEGMENT_NAME, LTO_NAMES_SECTION): New defines.
476         (darwin_asm_lto_start): New function.  Redirect output to asm_out_file
477         to a temporary file.
478         (darwin_asm_lto_end): New function.  Restore asm_out_file.
479         (darwin_asm_named_section): For LTO sections, replace the name with
480         the offset of the section name in a string table, and build this
481         table.
482         (darwin_file_start): Initialize global vars for LTO support.
483         (darwin_file_end): If output to asm_out_file was redirected, append it
484         to the proper asm_out_file here.  Add the section names section.
485
486 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
487
488         * c-pragma.c (pending_weak_d, pending_weak): New.
489         (pending_weaks): Change the type to VEC((pending_weak,gc) *.
490         (maybe_apply_pragma_weak, maybe_apply_pending_pragma_weaks,
491         handle_pragma_weak): Update the uses of pending_weaks.
492
493 2010-05-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
494
495         PR documentation/44016
496         * doc/standards.texi (Standards): Link to unversioned
497         cxx0x_status.html page.
498
499 2010-05-07  Iain Sandoe <iains@gcc.gnu.org>
500
501         PR target/43708
502         * config/darwin-c.c (darwin_pragma_unused): Set DECL_READ_P
503         in addition to TREE_USED, to avoid "set but unused" warnings.
504
505 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
506
507         * tree-ssa-loop-prefetch.c (TRIP_COUNT_TO_AHEAD_RATIO): New.
508         (is_loop_prefetching_profitable): Do not insert prefetches
509         when the trip count is not at least TRIP_COUNT_TO_AHEAD_RATIO
510         times the prefetch ahead distance.
511
512 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
513
514         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable):
515         Account for loop unrolling in the insn-to-prefetch ratio heuristic.
516         (loop_prefetch_arrays): Pass to is_loop_prefetching_profitable
517         the unroll_factor.
518
519 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
520
521         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable): Dump
522         a diagnostic info when the insn-to-mem ratio is too small.
523
524 2010-05-07  Richard Guenther <rguenther@suse.de>
525
526         * gcc.c (LINK_COMMAND_SPEC): Provide a resolution file to
527         the linker plugin.
528         (store_arg): Queue temp_filename for deletion instead of
529         the whole argument.
530
531 2010-05-07  Richard Guenther  <rguenther@suse.de>
532
533         * lto-wrapper.c (DUMPBASE_SUFFIX): Define.
534         (run_gcc): Handle LTRANS phase invocation.
535         * collect2.c (maybe_run_lto_and_relink): Do not set WPA_SAVE_LTRANS.
536
537 2010-05-07  Jakub Jelinek  <jakub@redhat.com>
538
539         * tree.h (TREE_ADDRESSABLE): Adjust comment to say that
540         this is also meaningful on PARM_DECLs and RESULT_DECLs.
541
542 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
543
544         * config/mips/iris6.h (LINK_SPEC): Don't pass -init, -fini with -r.
545
546 2010-05-07  Richard Guenther  <rguenther@suse.de>
547
548         PR tree-optimization/44020
549         * tree-ssa-pre.c (execute_pre): Do not remove dead inserted
550         code when PRE is not yet initialized.
551
552 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
553
554         * config/mips/dbxmdebug.h: Remove.
555         * config.gcc (mips-sgi-irix6.5*): Remove mips/dbxmdebug.h.
556
557 2010-05-07  Shujing Zhao  <pearly.zhao@oracle.com>
558
559         * c-typeck.c (build_binary_op): Warn ordered comparison of pointer
560         with null pointer and also warn about ordered comparison of zero with
561         pointer if -Wextra.
562
563 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
564
565         * graphite-blocking.c
566         (pbb_strip_mine_profitable_p): Replace Value with mpz_t.
567         * graphite-clast-to-gimple.c
568         (clast_to_gcc_expression): Same.
569         (precision_for_value): Same.
570         (precision_for_interval): Same.
571         (gcc_type_for_interval): Same.
572         (graphite_create_new_guard): Same.
573         (compute_bounds_for_level): Same.
574         (graphite_create_new_loop_guard): Same.
575         * graphite-interchange.c
576         (build_linearized_memory_access): Same.
577         (pdr_stride_in_loop): Same.
578         (memory_strides_in_loop_1): Same.
579         (memory_strides_in_loop): Same.
580         (extend_scattering): Same.
581         (psct_scattering_dim_for_loop_depth): Same.
582         (pbb_number_of_iterations): Same.
583         * graphite-poly.h
584         (debug_iteration_domains): Same.
585         * graphite-ppl.c
586         (new_Cloog_Domain_from_ppl_Pointset_Powerset): Same.
587         (ppl_set_inhomogeneous_gmp): Same.
588         (ppl_strip_loop): Same.
589         (ppl_lexico_compare_linear_expressions): Same.
590         (ppl_read_polyhedron_matrix): Same.
591         (ppl_max_for_le_pointset): Same.
592         * graphite-ppl.h
593         (ppl_read_polyhedron_matrix): Same.
594         (tree_int_to_gmp): Same.
595         (gmp_cst_to_tree): Same.
596         (ppl_set_inhomogeneous): Same.
597         (ppl_set_inhomogeneous_tree): Same.
598         (ppl_set_coef): Same.
599         (ppl_set_coef_tree): Same.
600         * graphite-sese-to-poly.c
601         (build_pbb_scattering_polyhedrons): Same.
602         (build_scop_scattering): Same.
603         (scan_tree_for_params_right_scev): Same.
604         (scan_tree_for_params): Same.
605         (find_params_in_bb): Same.
606         (find_scop_parameters): Same.
607         (add_upper_bounds_from_estimated_nit): Same.
608         (build_loop_iteration_domains): Same.
609         (add_condition_to_domain): Same.
610         (pdr_add_memory_accesses): Same.
611
612 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
613
614         * graphite-blocking.c (pbb_strip_mine_profitable_p): Resolve
615         CLooG's value_* macros to their respective mpz_* counterparts.
616         * graphite-clast-to-gimple.c (clast_to_gcc_expression): Same.
617         (graphite_create_new_loop_guard): Same.
618         * graphite-interchange.c (build_linearized_memory_access): Same.
619         (pdr_stride_in_loop): Same.
620         (memory_strides_in_loop_1): Same.
621         (1st_interchange_profitable_p): Same.
622         * graphite-poly.c (extend_scattering): Same.
623         (psct_scattering_dim_for_loop_depth): Same.
624         (pbb_number_of_iterations): Same.
625         (pbb_number_of_iterations_at_time): Same.
626         * graphite-poly.h (new_1st_loop): Same.
627         * graphite-ppl.c (cloog_matrix_to_ppl_constraint): Same.
628         (oppose_constraint): Same.
629         (insert_constraint_into_matrix): Same.
630         (ppl_set_inhomogeneous_gmp): Same.
631         (ppl_set_coef_gmp): Same.
632         (ppl_strip_loop): Same.
633         (ppl_lexico_compare_linear_expressions): Same.
634         (ppl_max_for_le_pointset): Same.
635         (ppl_min_for_le_pointset): Same.
636         (ppl_build_realtion): Same.
637         * graphite-ppl.h (gmp_cst_to_tree): Same.
638         (ppl_set_inhomogeneous): Same.
639         (ppl_set_inhomogeneous_tree): Same.
640         (ppl_set_coef): Same.
641         (ppl_set_coef_tree): Same.
642         * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Same.
643         (build_scop_scattering): Same.
644         (add_value_to_dim): Same.
645         (scan_tree_for_params_right_scev): Same.
646         (scan_tree_for_params_int): Same.
647         (scan_tree_for_params): Same.
648         (find_params_in_bb): Same.
649         (find_scop_parameters): Same.
650         (add_upper_bounds_from_estimated_nit): Same.
651         (build_loop_iteration_domains): Same.
652         (create_linear_expr_from_tree): Same.
653         (add_condition_to_domain): Same.
654         (pdr_add_memory_accesses): Same.
655
656 2010-05-06  Magnus Fromreide  <magfr@lysator.liu.se>
657             Jason Merrill  <jason@redhat.com>
658
659         * c-common.c (c_common_reswords): Add nullptr.
660         * c-common.h: Add RID_NULLPTR.  Reorganize C++0x rids.
661         * dwarf2out.c (is_base_type): Handle NULLPTR_TYPE.
662         (gen_type_die_with_usage): Likewise.
663         * dbxout.c (dbxout_type): Likewise.
664         * sdbout.c (plain_type_1): Likewise.
665
666 2010-05-06  Jason Merrill  <jason@redhat.com>
667
668         * gimplify.c (gimplify_expr): Set GS_ALL_DONE when appropriate.
669         Don't change GS_OK to GS_ALL_DONE.  Make sure that all cases set
670         ret appropriately.
671         (gimplify_compound_lval): Return GS_ALL_DONE as appropriate.
672
673         * gimplify.c (gimplify_modify_expr_rhs): Don't return GS_OK for
674         stripping WITH_SIZE_EXPR.
675         (gimplify_expr) [MODIFY_EXPR]: Trust GS_OK even if the rhs didn't
676         change.
677
678 2010-05-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
679
680         * config.gcc: Removed mips-sgi-irix5*, mips-sgi-irix6.[0-4]* from
681         list of obsolete configurations.
682         Disabled check for obsolete configurations.
683         (mips-sgi-irix[56]*): Restrict to mips-sgi-irix6.5*.
684         Removed support for previous versions.
685         * config/mips/iris.h: Removed.
686         * config/mips/iris5.h: Removed.
687         * config/mips/iris6.h: Merged old iris.h contents.
688         (TARGET_IRIX): Removed.
689         (DRIVER_SELF_SPECS): Removed mabi=32.
690         (IDENT_ASM_OP): Removed undef.
691         (STARTFILE_SPEC): Removed mabi=32.
692         (ENDFILE_SPEC): Likewise.
693         (IRIX_SUBTARGET_LINK_SPEC): Likewise.
694         (MACHINE_TYPE): Update for IRIX 6.5.
695         * config/mips/mips.c (mips_build_builtin_va_list): Replaced
696         TARGET_IRIX by TARGET_IRIX6.
697         (mips_file_start): Likewise.
698         (mips_output_external): Remove IRIX 5/6 O32 support.
699         (mips_output_function_prologue): Likewise.
700         * config/mips/mips.h (TARGET_GPWORD): Replaced TARGET_IRIX by
701         TARGET_IRIX6.
702         (TARGET_CPU_CPP_BUILTINS): Likewise.
703         (TARGET_IRIX): Removed.
704         * config/mips/t-iris6 (MULTILIB_OPTIONS): Removed mabi=32.
705         (MULTILIB_DIRNAMES): Removed 32.
706         (MULTILIB_OSDIRNAMES): Removed ../lib.
707         * doc/install.texi (Prerequisites): Don't reference IRIX before 6.5.
708         (Specific, mips-sgi-irix5): Document removal.
709         (Specific, mips-sgi-irix6): Document IRIX 6.[0-4] and O32 ABI removal.
710         Remove references to older IRIX 6 releases and the O32 ABI.
711
712 2010-05-06  Jakub Jelinek  <jakub@redhat.com>
713
714         PR bootstrap/43994
715         * df-problems.c (dead_debug_insert_before): Use *DF_REF_REAL_LOC
716         instead of DF_REF_REAL_REG.
717
718 2010-05-06  Dave Korn  <dave.korn.cygwin@gmail.com>
719
720         PR target/43888
721         * config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
722         handling to still return true for x64 targets.
723
724 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
725
726         * config/m68k/uclinux.h (LIB_SPEC): Bring in sync with config/linux.h.
727
728 2010-05-06  Jan Hubicka  <jh@suse.cz>
729
730         PR tree-optimization/43791
731         * ipa-inline.c (update_caller_keys): Remove bogus
732         disregard_inline_limits check.
733
734 2010-05-06  Michael Matz  <matz@suse.de>
735
736         PR tree-optimization/43984
737         * tree-ssa-pre.c (inserted_phi_names): Remove.
738         (inserted_exprs): Change to bitmap.
739         (create_expression_by_pieces): Set bits, don't append to vector.
740         (insert_into_preds_of_block): Don't handle inserted_phi_names.
741         (eliminate): Don't look at inserted_phi_names, remove deleted
742         insns from inserted_exprs.
743         (remove_dead_inserted_code): Adjust to use bitmaps instead of vectors.
744         (init_pre, fini_pre): Allocate and free bitmaps.
745         (execute_pre): Insert insns on edges before elimination.
746
747 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
748
749         * tree.c (initializer_zerop): Handle STRING_CST.
750
751 2010-05-06  Manuel López-Ibáñez  <manu@gcc.gnu.org>
752
753         PR 40989
754         * doc/invoke.texi (Wimplicit): Document as C only.
755         * opts.c (common_handle_option): Add argument kind.
756         (handle_option): Rename as read_cmdline_option. Factor out code to...
757         (handle_option): ... here. New.
758         (handle_options): Rename as read_cmdline_options.
759         (decode_options): Update call.
760         (set_option): Use option index instead of option pointer. Classify
761         diagnostics correctly.
762         (enable_warning_as_error): Call handle_option.
763         * opts.h (set_option): Update declaration.
764         (handle_option): Declare.
765         * langhooks.h (struct lang_hooks): Add argument kind to handle_option.
766         * c.opt (Wimplicit,Wimplicit-int): Initialize to -1.
767         * c-opts.c (set_Wimplicit): Delete.
768         (c_family_lang_mask): New static constant.
769         (c_common_handle_option): Add argument kind. Use handle_option
770         instead of set_Wimplicit.
771         (c_common_post_options): warn_implicit and warn_implicit_int
772         are disabled by default.
773         * c-common.c (warn_implicit): Do not define here.
774         * c-common.h (warn_implicit): Do not declare here.
775         (c_common_handle_option): Update declaration.
776         * lto-opts.c (lto_reissue_options): Update call to set_option.
777
778 2010-05-06  Richard Guenther  <rguenther@suse.de>
779
780         PR tree-optimization/43571
781         * domwalk.c (walk_dominator_tree): Walk the dominator
782         sons in more optimal order.
783
784 2010-05-06  Richard Guenther  <rguenther@suse.de>
785
786         PR tree-optimization/43934
787         * tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
788         (stmt_cost): Likewise.
789         (extract_true_false_args_from_phi): New helper.
790         (determine_max_movement): For PHI nodes verify we can hoist them
791         and compute their cost.
792         (determine_invariantness_stmt): Handle PHI nodes.
793         (move_computations_stmt): Likewise.  Hoist PHI nodes in
794         if-converted form using COND_EXPRs.
795         (move_computations): Return TODO_cleanup_cfg if we hoisted PHI nodes.
796         (tree_ssa_lim): Likewise.
797         * tree-flow.h (tree_ssa_lim): Adjust prototype.
798         * tree-ssa-loop.c (tree_ssa_loop_im): Return todo.
799
800 2010-05-06  Richard Guenther  <rguenther@suse.de>
801
802         PR tree-optimization/43987
803         * tree-ssa-structalias.c (could_have_pointers): For possibly
804         address-taken variables force pointers to be recorded.
805         (create_variable_info_for_1): Likewise.
806         (push_fields_onto_fieldstack): Pass in wheter all fields
807         must have pointers.
808         (find_func_aliases): Query types instead of vars whether
809         they contain pointers where appropriate.
810
811 2010-05-06  Jan Hubicka  <jh@suse.cz>
812
813         * cgraphbuild.c (record_reference_ctx): Add varpool_node.
814         (record_reference, mark_address, mark_load, mark_store): Record
815         references.
816         (record_references_in_initializer): Update call of record_references.
817         (rebuild_cgraph_edges): Remove all references before rebuiding.
818         * cgraph.c (cgraph_create_node): Clear ref list.
819         (cgraph_remove_node): Remove references.
820         (dump_cgraph_node): Dump references.
821         (cgraph_clone_node): Clone references.
822         * cgraph.h: Include ipa-ref.h and ipa-ref-inline.h
823         (struct cgraph_node, varpool_node): Add ref_lst.
824         * ipa-ref.c: New file.
825         * ipa-ref.h: New file.
826         * ipa-ref-inline.h: New file.
827         * lto-cgraph.c (output_varpool): Take cgrag node set argument.
828         (referenced_from_other_partition_p): New function.
829         (lto_output_varpool_node): Take set arugment; call
830         referenced_from_other_partition.
831         (lto_output_ref): New.
832         (add_references): New.
833         (output_refs): New.
834         (output_cgraph): Compute boundary based on references; output refs.
835         (output_varpool): Accept cgraph_node_set argument.
836         (input_ref): New.
837         (input_refs): New.
838         (input_cgraph): Call input_refs.
839         * lto-section-in.c (lto_section_name): Add refs.
840         * Makefile.in: (cgraph.h): Include ipa-ref.h and ipa-ref-inline.h
841         (ipa-ref.o): New file.
842         * varpool.c (varpool_node): Clear ipa ref list.
843         (varpool_remove_node): Remove references.
844         (dump_varpool_node): Dump references.
845         (varpool_assemble_decl): Only compile finalized ones.
846         (varpool_extra_name_alias): Initialize ref list.
847         * lto-streamer.c (lto-get_section_name): Add .refs section.
848         * lto-streamer.h (lto_section_type): Add LTO_section_refs.
849         (referenced_from_other_partition_p): Declared.
850
851 2010-05-06  Ira Rosen  <irar@il.ibm.com>
852
853         PR tree-optimization/43901
854         * tree-vect-stmts.c (vectorizable_call): Assert that vector
855         type is not NULL if it's transformation phase, and return
856         FALSE if it's analysis.
857         (vectorizable_conversion, vectorizable_operation,
858         vectorizable_type_demotion, vectorizable_type_promotion): Likewise.
859
860 2010-05-05  Andrew Pinski  <andrew.pinski@caviumnetworks.com>
861
862         * config/mips/mips.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
863         Delete.
864         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
865         New define.
866         * config/mips/mips-protos.h
867         (mips_small_register_classes_for_mode_p): Delete prototype.
868
869 2010-05-06  Bernd Schmidt  <bernds@codesourcery.com>
870
871         * config/arm/arm.h (MAX_LDM_STM_OPS): New macro.
872         * config/arm/arm.c (multiple_operation_profitable_p,
873         compute_offset_order): New static functions.
874         (load_multiple_sequence, store_multiple_sequence): Use them.
875         Replace constant 4 with MAX_LDM_STM_OPS.  Compute order[0] from
876         memory offsets, not register numbers.
877         (emit_ldm_seq, emit_stm_seq): Replace constant 4 with MAX_LDM_STM_OPS.
878
879 2010-05-05  Steven Bosscher  <steven@gcc.gnu.org>
880
881         * stor-layout.c (pending_sizes): Change the type to VEC(tree,gc) *.
882         (get_pending_sizes, put_pending_size, put_pending_sizes):
883         Update the uses of pending_sizes.
884         * c-decl.c (store_parm_decls): Likewise.
885         * c-tree.h (struct c_arg_info): Likewise.
886         * tree.h: Update the prototype for get_pending_sizes and
887         put_pending_sizes.
888
889 2010-05-05  Jason Merrill  <jason@redhat.com>
890
891         PR debug/43370
892         * c-common.c (handle_aligned_attribute): Respect
893         ATTR_FLAG_TYPE_IN_PLACE.
894
895         PR testsuite/43758
896         * target.h (struct gcc_target): Add attribute_takes_identifier_p.
897         * target_def.h (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
898         (TARGET_INITIALIZER): Use it.
899         * c-common.c (attribute_takes_identifier_p): Call it.
900         * c-common.h: Update prototype.
901         * config/rs6000/rs6000.c (rs6000_attribute_takes_identifier_p): New.
902         (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
903
904 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
905
906         PR debug/43950
907         * dwarf2out.c (gen_compile_unit_die): Add DW_AT_identifier_case
908         DW_ID_down_case for Fortran compilation units.
909
910 2010-05-05  Jan Hubicka  <jh@suse.cz>
911
912         * lto-cgraph.c (lto_output_varpool_node, input_varpool_node): Correctly
913         handle aliases.
914
915 2010-05-05  Eric Botcazou  <ebotcazou@adacore.com>
916
917         * gimplify.c (gimplify_return_expr): Gimplify the size expressions of
918         a variable-sized RESULT_DECL.
919
920 2010-05-05  Maxim Kuvyrkov  <maxim@codesourcery.com>
921
922         * doc/invoke.texi (-mfix-cortex-m3-ldrd): Move from ARC section to ARM.
923
924 2010-05-05  Jason Merrill  <jason@redhat.com>
925
926         PR c++/43787
927         * gimplify.c (gimplify_expr): Keep working if gimplify_modify_expr
928         returns GS_OK.
929         (gimplify_modify_expr_rhs): Return GS_OK if anything changed.
930
931 2010-05-05  Alexandre Oliva  <aoliva@redhat.com>
932             Jakub Jelinek  <jakub@redhat.com>
933
934         PR debug/43478
935         * df-problems.c (struct dead_debug_use, struct dead_debug): New.
936         (dead_debug_init, dead_debug_finish): New functions.
937         (dead_debug_add, dead_debug_insert_before): Likewise.
938         (df_note_bb_compute): Initialize a dead_debug object, add dead
939         debug uses to it, insert debug bind insns before death insns,
940         reset debug insns that refer to pending uses at the end.
941         * rtl.h (make_debug_expr_from_rtl): New prototype.
942         * varasm.c (make_debug_expr_from_rtl): New function.
943
944 2010-05-05  Jan Hubicka  <jh@suse.cz>
945
946         * lto-cgraph.c (output_varpool): Forward declare; work on encoder.
947         (lto_varpool_encoder_new, lto_varpool_encoder_delete,
948         lto_varpool_encoder_encode, lto_varpool_encoder_lookup,
949         lto_varpool_encoder_deref, lto_varpool_encoder_size,
950         lto_varpool_encoder_encode_initializer_p,
951         lto_set_varpool_encoder_encode_initializer): New functions.
952         (lto_output_cgraph): Take vset parameter too; compute varpool encoder;
953         call output_varpool.
954         (input_varpool_node): Do not always set analyzed.
955         (input_cgraph_1): Return vector of cgraph nodes.
956         (input_varpool_1): Return vector of varpools.
957         (input_cgraph): Free the vectors.
958         * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
959         output only initializers needed.
960         (lto_output): Only call output_cgraph.
961         (produce_asm_for_decls): Call lto_varpool_encoder_delete.
962         * lto-section-out.c (lto_new_out_decl_state): Initialize
963         state->varpool_node_encoder.
964         * lto-streamer.h (lto_varpool_encoder_d): New.
965         (lto_out_decl_state, lto_file_decl_data): Add varpool_node_encoder.
966         (lto_cgraph_encoder_delete, output_cgraph): Update prototype.
967         (lto_varpool_encoder_deref, lto_varpool_encoder_lookup,
968         lto_varpool_encoder_encode, lto_varpool_encoder_delete,
969         lto_varpool_encoder_encode_initializer_p, lto_varpool_encoder_new):
970         Declare.
971         (output_varpool, input_varpool): Remove declarations.
972
973 2010-05-05  Jan Hubicka  <jh@suse.cz>
974
975         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Alias of variable
976         with body can prevail.
977
978 2010-05-05  Jan Hubicka  <jh@suse.cz>
979
980         * lto-symtab.c (lto_symtab_merge_decls_1): Prefer declarations with
981         size.
982
983 2010-05-05  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
984
985         * Makefile.in (build/gengtype.o): Add $(HASHTAB_H) to dependencies.
986
987         * gengtype.h (erro_at_line): Constify pos argument.
988
989         * gengtype.c: Include hashtab.h.
990         (enum gc_used): Document GC_MAYBE_POINTED_TO.
991         (error_at_line): Constify pos argument.
992         (do_typedef): Initialize p->opt field.
993         (get_file_gtfilename): Fix comment typo.
994         (struct walk_type_data): Constify line field.
995         (get_output_file_for_structure): New function.
996         (write_local_func_for_structure): Constify orig_s argument.
997         Use get_output_file_for_structure.
998         (write_func_for_structure): Use get_output_file_for_structure.
999         (INDENT): New define.
1000         (dump_pair, dump_type, dump_type_list, dump_typekind)
1001         (dump_gc_used, dump_options, dump_fileloc, dump_type_u_s)
1002         (dump_type_u_a, dump_type_u_param_struct, dump_everything): New
1003         functions.
1004         (seen_types): New variable.
1005         (main): New variable do_dump.  Process "-d" command line option.
1006         Call dump_everything if dump requested.
1007
1008 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
1009
1010         * var-tracking.c (var_debug_decl): Save DECL_DEBUG_EXPR value
1011         in a temporary instead of invoking the macro multiple times.
1012         (track_expr_p): Likewise.
1013
1014 2010-05-04  Neil Vachharajani <nvachhar@google.com>
1015
1016         * doc/invoke.texi (-Wcoverage-mismatch): Updated documentation as
1017         per new semantics.
1018         * opts.c (decode_options): Enable -Werror=coverage-mismatch.
1019         * coverage.c (get_coverage_counts): Always emit a warning.  Adjust
1020         conditions for printing notes.
1021         * common.opt (-Wcoverage-mismatch): Allow negative, default to
1022         true, update documentation.
1023         * Makefile.in (coverage.o): Add dependence on DIAGNOSTIC_H and intl.h.
1024
1025 2010-05-04  Jakub Jelinek  <jakub@redhat.com>
1026
1027         PR c/43981
1028         * c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
1029         on dimen.
1030
1031 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
1032
1033         PR target/43799
1034         * config/i386/i386.md (sse_prologue_save): Clobber CC register.
1035         (*sse_prologue_save_insn1): Likewise.
1036         (SSE prologue save splitter): Likewise.
1037
1038 2010-05-04  Eric Botcazou  <ebotcazou@adacore.com>
1039
1040         * tree.c (free_lang_data_in_one_sizepos): New inline function.
1041         (free_lang_data_in_type): Call it on TYPE_{MIN|MAX}_VALUE of numerical
1042         types.  Call it on TYPE_SIZE and TYPE_SIZE_UNIT of all types.
1043         (free_lang_data_in_decl): Call it on DECL_SIZE and DECL_SIZE_UNIT of
1044         all decls.  Call it on DECL_FIELD_OFFSET of fields.
1045         (find_decls_types_r): Follow DECL_VALUE_EXPR.
1046         (iterative_hash_expr) <PLACEHOLDER_EXPR>: New case.
1047
1048 2010-05-04  Martin Jambor  <mjambor@suse.cz>
1049
1050         * tree-sra.c (build_access_from_expr_1): The first parameter type
1051         changed to simple tree.
1052         (build_access_from_expr): Likewise, gsi parameter was eliminated.
1053         (scan_assign_result): Renamed to assignment_mod_result, enum elements
1054         renamed as well.
1055         (build_accesses_from_assign): Removed all parameters except for a
1056         simple gimple statement.  Now returns a simple bool.
1057         (scan_function): All non-analysis parts moved to separate functions
1058         sra_modify_function_body and ipa_sra_modify_function_body.  Removed all
1059         parameters and updated both callers.
1060         (sra_modify_expr): Removed parameter data.
1061         (sra_modify_function_body): New function.
1062         (perform_intra_sra): Call sra_modify_function_body to modify the
1063         function body.
1064         (replace_removed_params_ssa_names): Parameter data changed into
1065         adjustments vector.
1066         (sra_ipa_modify_expr): Likewise.  Also removed unused parameter gsi and
1067         changed the parameter dont_convert to convert with the opposite
1068         meaning.
1069         (sra_ipa_modify_assign): Parameter data changed into adjustments
1070         vector, return value changed to bool.
1071         (ipa_sra_modify_function_body): New function.
1072         (sra_ipa_reset_debug_stmts): Updated a comment.
1073         (modify_function): Use ipa_sra_modify_function_body to modify function
1074         body.
1075
1076 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
1077
1078         PR middle-end/43671
1079         * alias.c (true_dependence): Handle the same VALUE in x and mem.
1080         (canon_true_dependence): Likewise.
1081         (write_dependence_p): Likewise.
1082
1083 2010-05-04  Jan Hubicka  <jh@suse.cz>
1084
1085         * Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h
1086         * cgraphbuild.c: Include ipa-utils.h
1087         (record_reference_ctx): New struct.
1088         (record_reference): Simplify to work on initializers; not statements.
1089         (mark_address, mark_load, mark_store): New.
1090         (build_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
1091         walk PHI nodes too.
1092         (record_references_in_initializer): Update use of record_reference.
1093         (rebuild_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
1094         walk PHI nodes too.
1095
1096 2010-05-04  Jan Hubicka  <jh@suse.cz>
1097
1098         * lto-symtab.c (lto_cgraph_replace_node): Do not remove edges;
1099         node will be removed anyway.
1100         (lto_varpool_replace_node): Allow also unanalyzed nodes;
1101         relink aliases of node into prevailing node.
1102         * varpool.c (varpool_remove_node): Remove aliases properly;
1103         when removing node, remove all its aliases too; remove DECL_INITIAL
1104         of removed node; ggc_free the varpool node.
1105
1106 2010-05-04  Richard Guenther  <rguenther@suse.de>
1107
1108         PR tree-optimization/43879
1109         * tree-ssa-structalias.c (alias_get_name): Use
1110         DECL_ASSEMBLER_NAME if available.
1111         (create_function_info_for): Return the varinfo node.
1112         (ipa_pta_execute): Associate same-body aliases and extra names
1113         with their origin nodes varinfo.  Dump DECL_ASSEMBLER_NAME.
1114
1115 2010-05-04  Kaz Kojima  <kkojima@gcc.gnu.org>
1116
1117         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Remove static.
1118
1119 2010-05-04  Mikael Pettersson  <mikpe@it.uu.se>
1120
1121         PR bootstrap/43964
1122         * ira-color.c (assign_hard_reg): Declare rclass and add_cost
1123         only if HONOR_REG_ALLOC_ORDER is not defined.
1124
1125 2010-05-04  Richard Guenther  <rguenther@suse.de>
1126
1127         PR tree-optimization/43949
1128         * tree-vrp.c (extract_range_from_binary_expr): Only handle
1129         TRUNC_MOD_EXPR.
1130
1131 2010-04-26  Jason Merrill  <jason@redhat.com>
1132
1133         * c.opt (-fstrict-enums): New.
1134         * doc/invoke.texi (C++ Dialect Options): Document -fstrict-enums.
1135
1136 2010-05-03  David Ung <davidu@mips.com>
1137             James E. Wilson  <wilson@codesourcery.com>
1138
1139         * config/mips/mips.c (mips_output_division): If GENERATE_DIVIDE_TRAPS,
1140         emit the trap instruction before the divide for TUNE_74K.
1141
1142 2010-05-03  Steven Bosscher  <steven@gcc.gnu.org>
1143
1144         * doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.
1145         (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
1146         based on the above, for new target hook.
1147
1148         * hooks.c (hook_bool_mode_true): New generic hook.
1149         * hooks.h (hook_bool_mode_true): Add prototype.
1150
1151         * target.h (struct gcc_target): Add small_register_classes_for_mode_p
1152         target hook.
1153         * target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
1154         target hook, set to hook_bool_mode_false.
1155         * regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
1156         * reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
1157         with targetm.small_register_classes_for_mode_p.
1158         (find_reusable_reload): Likewise.
1159         (combine_reloads): Likewise.
1160         * reload1.c (reload_as_needed): Likewise.
1161         * cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
1162         * ifcvt.c (noce_process_if_block, check_cond_move_block,
1163         dead_or_predicable): Likewise.
1164         * regmove.c (optimize_reg_copy_1): Likewise.
1165         * calls.c (prepare_call_address): Likewise.
1166         (precompute_register_parameters): Likewise.
1167
1168         * config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
1169         hook definition.
1170         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
1171         implementation of the hook that considers all register classes
1172         small except for SH64.
1173         (sh_override_options): Use the new hook.
1174         * config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
1175         Add prototype.
1176
1177         * config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
1178         hook definition.
1179         * config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
1180         implementation of the hook that considers all register classes
1181         small for THUMB1.
1182         * config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
1183         Add prototype.
1184
1185         * config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
1186         hook definition.
1187         * config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
1188         implementation of the hook that considers all register classes
1189         small for MIPS16.
1190         * config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
1191         Add prototype.
1192
1193         * config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
1194         hook definition.
1195         * config/m32c/m32c.h: Likewise.
1196         * config/pdp11/pdp11.h: Likewise.
1197         * config/avr/avr.h: Likewise.
1198         * config/xtensa/xtensa.h: Likewise.
1199         * config/m68hc11/m68hc11.h: Likewise.
1200         * config/mn10300/mn10300.h: Likewise.
1201         * config/mcore/mcore.h: Likewise.
1202         * config/h8300/h8300.h: Likewise.
1203         * config/bfin/bfin.h: Likewise.
1204
1205         * config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
1206         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.
1207
1208 2010-05-03  Anatoly Sokolov  <aesok@post.ru>
1209
1210         * double-int.h (tree_to_double_int): Remove macro.
1211         (double_int_to_tree, double_int_fits_to_tree_p): Move prototypes ...
1212         * tree.h (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1213         (tree_to_double_int): New function.
1214         * double-int.c (double_int_to_tree, double_int_fits_to_tree_p):
1215         Move ...
1216         * tree.c (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1217
1218 2010-05-03  Richard Guenther  <rguenther@suse.de>
1219
1220         PR tree-optimization/43971
1221         * tree-ssa-structalias.c (get_constraint_for_1): Fix
1222         constraints in the !flag_delete_null_pointer_checks case.
1223
1224 2010-05-03  Jakub Jelinek  <jakub@redhat.com>
1225
1226         PR debug/43972
1227         * config/i386/i386.c (ix86_delegitimize_address): Make sure the
1228         result mode matches original rtl mode.
1229
1230 2010-05-03  Dave Korn  <dave.korn.cygwin@gmail.com>
1231
1232         PR target/43888
1233         * config/i386/winnt.c (i386_pe_binds_local_p): Handle weak decls.
1234
1235 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1236
1237         * config/i386/i386.c (ix86_target_string): Output 'flags', not 'isa',
1238         when processing flag options.
1239
1240 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1241
1242         * gcov-iov.c (main): Change format string placeholder
1243         from %#08x to 0x%08x.
1244         * genchecksum.c (dosum): Change format string placeholder
1245         from %#02x to 0x%02x.
1246
1247 2010-05-02  Richard Guenther  <rguenther@suse.de>
1248
1249         PR tree-optimization/43879
1250         * tree-tailcall.c (find_tail_calls): Clobbers also prevent tail calls.
1251
1252 2010-05-02  Bruno Haible  <bruno@clisp.org>
1253
1254         * doc/extend.texi (Function Attributes): Fix a typo.
1255
1256 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1257
1258         Revert:
1259         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Change format string
1260         placeholder from 0x%x to %#x.
1261         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
1262         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
1263         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
1264         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
1265         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
1266         * config/i386/i386.c (ix86_target_string): Ditto.
1267         * config/i386/i386.c (output_pic_addr_const): Ditto.
1268         (print_operand): Ditto.
1269
1270 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1271
1272         * vmsdbgout.c (ASM_OUTPUT_DEBUG_DATA1): Change format string
1273         placeholder from 0x%x to %#x.
1274         (ASM_OUTPUT_DEBUG_DATA1): Ditto.
1275         (ASM_OUTPUT_DEBUG_DATA4): Ditto.
1276         (ASM_OUTPUT_DEBUG_DATA): Ditto.
1277         (ASM_OUTPUT_DEBUG_ADDR_DATA): Ditto.
1278         (ASM_OUTPUT_DEBUG_DATA8): Ditto.
1279         * optc-gen.awk: Ditto.
1280         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Ditto.
1281         (HOST_WIDE_INT_PRINT_HEX): Ditto.
1282         (HOST_WIDEST_INT_PRINT_HEX): Ditto.
1283         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
1284
1285 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
1286
1287         * target.h (struct calls): Add function_value_regno_p field.
1288         * target-def.h (TARGET_FUNCTION_VALUE_REGNO_P): Define.
1289         (TARGET_INITIALIZER): Use TARGET_FUNCTION_VALUE_REGNO_P.
1290         * targhooks.c (default_function_value_regno_p): New function.
1291         * targhooks.h (default_function_value_regno_p): Declare function.
1292         * rtlanal.c (keep_with_call_p): Use function_value_regno_p hook.
1293         * builtins.c. (apply_result_size): (Ditto.).
1294         * combine.c. (likely_spilled_retval_p): (Ditto.).
1295         * mode-switching.c. Include 'target.h'.
1296         (create_pre_exit): Use function_value_regno_p hook.
1297         * Makefile.in (mode-switching.o): Add dependency on TARGET_H.
1298         * doc/tm.texi (FUNCTION_VALUE_REGNO_P,
1299         TARGET_FUNCTION_VALUE_REGNO_P): Revise documentation.
1300
1301         * config/i386/i386.h (TARGET_FUNCTION_VALUE_REGNO_P): Remove macro.
1302         * config/i386/i386.c (TARGET_FUNCTION_VALUE_REGNO_P): Define macro.
1303         (ix86_function_value_regno_p): Declare as static, change argument
1304         type to const unsigned int.
1305         * config/i386/i386-protos.h (ix86_function_value_regno_p): Remove.
1306
1307 2010-05-01  Richard Guenther  <rguenther@suse.de>
1308
1309         PR tree-optimization/43949
1310         * tree-vrp.c (ssa_name_nonnegative_p): Return true for unsigned
1311         types.
1312         (extract_range_from_binary_expr): Handle *_MOD_EXPR.
1313
1314 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
1315
1316         * rtl.h (CONST_DOUBLE_P): Define.
1317         (rtx_to_double_int): Declare.
1318         * emit-rtl.c (rtx_to_double_int): New function.
1319         * dwarf2out.c (insert_double): New function.
1320         (loc_descriptor, add_const_value_attribute): Clean up, use
1321         rtx_to_double_int and insert_double functions.
1322
1323 2010-05-01  Jonathan Wakely  <jwakely.gcc@gmail.com>
1324
1325         * doc/extend.texi (Inline): Add missing return keyword to examples.
1326         (Function Attributes, Variable Attributes, Pragmas): Hyphenate
1327         "command-line".
1328
1329 2010-04-30  Eric Botcazou  <ebotcazou@adacore.com>
1330
1331         * tree-ssa-loop-ivopts.c (may_be_unaligned_p): Check the alignment of
1332         the variable part of the offset as well.  Use highest_pow2_factor for
1333         all alignment checks.
1334
1335 2010-04-30  Richard Guenther  <rguenther@suse.de>
1336
1337         PR tree-optimization/43879
1338         * tree-ssa-structalias.c (type_could_have_pointers): Functions
1339         can have pointers.
1340
1341 2010-04-30  Jan Hubicka  <jh@suse.cz>
1342
1343         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Chose var with
1344         varpool.
1345         (lto_symtab_merge_decls_1): Remove logic looking for an initializer.
1346
1347 2010-04-30  Jan Hubicka  <jh@suse.cz>
1348
1349         * cgraph.h (cgraph_node_set_nonempty_p, varpool_node_set_nonempty_p):
1350         New.
1351         * lto-cgraph.c (input_cgraph): Remove call to lto_mark_file_for_ltrans.
1352         * lto-streamer.h (lto_file_decl_data): Remove needs_ltrans_p.
1353         (lto_file_needs_ltrans_p, lto_mark_file_for_ltrans,
1354         cgraph_node_set_needs_ltrans_p): Remove.
1355
1356 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
1357
1358         * sdbout.c: Include vec.h, do not include varray.h.
1359         (deferred_global_decls, sdbout_global_decl,
1360         sdbout_finish, sdbout_init): Use VEC instead of VARRAY.
1361         * toplev.c: Do not include varray.h.
1362         (dump_memory_report): Do not dump VARRAY statistics.
1363         * gengtype.c (open_base_file): Ignore varray.h.
1364         * Makefile.in: Update for abovementioned changes.
1365         Remove all traces of varray.c and varray.h.
1366         * varray.c: Remove file.
1367         * varray.h: Remove file.
1368
1369 2010-04-30  Jan Hubicka  <jh@suse.cz>
1370
1371         * lto-cgraph.c (lto_output_varpool_node): Always output constant pool
1372         references.
1373
1374 2010-04-30  Jan Hubicka  <jh@suse.cz>
1375
1376         * tree-profile.c (tree_init_ic_make_global_vars): Mark new decls as
1377         needed.
1378
1379 2010-04-30  Richard Guenther  <rguenther@suse.de>
1380
1381         * tree-ssa-structalias.c (get_constraint_for_1): Generate
1382         constraints for CONSTRUCTOR.
1383
1384 2010-04-30  Richard Guenther  <rguenther@suse.de>
1385
1386         PR lto/43946
1387         * passes.c (init_optimization_passes): Move pass_ipa_free_lang_data
1388         first after all lowering passes.
1389
1390 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
1391
1392         * toplev.c: Include varray.h for statistics dumping.
1393         * tree.h: Do not declare varray_head_tag.
1394         * tree-into-ssa.c, tree-ssa-uninit.c, tree-phinodes.c, omega.c,
1395         regs.h, lto-cgraph.c, tree-ssa-loop-ivopts.c, tree-nomudflap.c,
1396         c-objc-common.c, lto-streamer-out.c, tree-ssa-propagate.c,
1397         gimple-low.c, c-semantics.c, dwarf2out.c, lto-streamer-in.c,
1398         lto-section-in.c, alias.c, tree-if-conv.c, gimplify.c, ggc-zone.c,
1399         tree-ssa.c, tree-ssa-loop-prefetch.c, integrate.h, c-gimplify.c,
1400         c-common.c, c-common.h, reg-stack.c, basic-block.h,
1401         tree-ssa-structalias.c, lto-section-out.c, tree-ssanames.c: Do not
1402         include varray.h.
1403         * Makefile.in: Update for abovementioned changes.
1404
1405 2010-04-30  Jakub Jelinek  <jakub@redhat.com>
1406
1407         PR debug/43942
1408         * tree.c (auto_var_in_fn_p): Return false for DECL_EXTERNAL vars.
1409
1410 2010-04-30  Hariharan Sandanagobalane  <hariharan@picochip.com>
1411
1412         * config/picochip/picochip.c (picochip_legitimize_address): Define.
1413         Use this function to do machine-specific conversion.
1414         (picochip_legitimize_reload_address): Likewise.
1415         (picochip_legitimate_address_p): Check valid base register only if
1416         strict.
1417         (picochip_check_conditional_copy): Check for modw only if opnd is
1418         register.
1419         * config/picochip/picochip.h (LEGITIMIZE_RELOAD_ADDRESS): Use this
1420         to call the function in c.
1421         * config/picochip/picochip-protos.h
1422         (picochip_legitimize_reload_address): Define.
1423         * config/picochip/picochip.md (supported_compare1): Define.
1424
1425 2010-04-30  Jan Hubicka  <jh@suse.cz>
1426
1427         * cgraph.h (cgraph_local_info): Remove for_functions_valid.
1428         (cgraph_global_info): Remove inlined.
1429         (LTO_cgraph_tag_names): Remove.
1430         (LTO_cgraph_tags, LCC_NOT_FOUND): Move to ...
1431         * lto-cgraph.c (LTO_cgraph_tags, LCC_NOT_FOUND): ... here;
1432         simplify cgraph tags and document.
1433         (lto_output_node): Use only LTO_cgraph_unavail_node and
1434         LTO_cgraph_analyzed_node; Do not save analzed, reachable,
1435         for_functions_valid, global info, process and output flags.
1436         (input_overwrite_node): Initialize estimated stack size and
1437         estimated growth.  Do not read flags we no longer store.
1438         (input_node): Likewise do not read info no longer stored.
1439         * ipa-inline.c (cgraph_mark_inline_edge): Do not set global.inlined
1440         flag.
1441
1442 2010-04-30  Richard Guenther  <rguenther@suse.de>
1443
1444         PR tree-optimization/43879
1445         * tree-ssa-structalias.c (get_constraint_for_1): Properly
1446         handle non-zero initializers.
1447
1448 2010-04-30  Richard Guenther  <rguenther@suse.de>
1449
1450         * builtins.c (fold_builtin_1): Delete free (0).
1451
1452 2010-04-29  Jan Hubicka  <jh@suse.cz>
1453
1454         * gengtype.c (open_base_files): Add lto-streamer.h
1455         * cgraph.h (cgraph_local_info): lto_file_data is now in GGC.
1456         (pass_ipa_cp): GGC collect.
1457         * toplev. (compile_file): Do not output symbols.
1458         * ipa-inline.c (pass_ipa_inline): Add ggc collect.
1459         * timevar.def (TV_VARPOOL, TV_IPA_LTO_DECL_INIT_IO,
1460         TV_IPA_LTO_DECL_MERGE, TV_IPA_LTO_CGRAPH_MERGE, TV_VAROUT): New.
1461         * lto-section-in.c: Include ggc.h
1462         (lto_new_in_decl_state): Alloc in GGC.
1463         (lto_delete_in_decl_state): Likewise.
1464         * ipa.c (pass_ipa_function_visibility, pass_ipa_whole_program):
1465         Collect.
1466
1467 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
1468
1469         PR target/42895
1470         * doc/tm.texi (ADJUST_REG_ALLOC_ORDER): Renamed from
1471         ORDER_REGS_FOR_LOCAL_ALLOC.  All instances of this macro changed.
1472         (HONOR_REG_ALLOC_ORDER): Describe new macro.
1473         * ira.c (setup_alloc_regs): Use ADJUST_REG_ALLOC_ORDER if defined.
1474         * ira-color.c (assign_hard_reg): Take prologue/epilogue costs into
1475         account only if HONOR_REG_ALLOC_ORDER is not defined.
1476         * config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Define.
1477         * system.h (ORDER_REGS_FOR_LOCAL_ALLOC): Poison.
1478
1479 2010-04-29  Jon Grant  <04@jguk.org>
1480
1481         * collect2.c (vflag): Change type from int to bool.
1482         (debug): Likewise.
1483         (helpflag): New global bool.
1484         (main): Set vflag and debug with boolean, not integer truth values.
1485         Accept new "--help" option and output usage text if found.
1486         * collect2.h (vflag): Update prototype.
1487         (debug): Likewise.
1488
1489 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
1490
1491         PR bootstrap/43936
1492         * plugin.h (flag_plugin_added): Moved out of invoke_plugin_callbacks.
1493
1494 2010-04-29  Richard Guenther  <rguenther@suse.de>
1495
1496         PR bootstrap/43935
1497         * plugin.h (invoke_plugin_callbacks): Annotate arguments
1498         with ATTRIBUTE_UNUSED.
1499
1500 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
1501
1502         PR target/43921
1503         * config/i386/i386.c (get_some_local_dynamic_name): Replace
1504         INSN_P with NONDEBUG_INSN_P.
1505         (distance_non_agu_define): Likewise.
1506         (distance_agu_use): Likewise.
1507
1508 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
1509
1510         From Dominique d'Humieres <dominiq@lps.ens.fr>
1511         PR bootstrap/43858
1512         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs to compute
1513         test_set.
1514
1515 2010-04-29  Brian Hackett  <bhackett1024@gmail.com>
1516
1517         * plugin.h (invoke_plugin_callbacks): New inline function.
1518         * plugin.c (flag_plugin_added): New global flag.
1519         (add_new_plugin): Initialize above flag.
1520         (invoke_plugin_callbacks): Rename to ...
1521         (invoke_plugin_callbacks_full): ... this.
1522
1523 2010-04-28  Jan Hubicka  <jh@suse.cz>
1524
1525         * lto-symtab.c (lto_symtab_entry_def) Add vnode.
1526         (lto_varpool_replace_node): New.
1527         (lto_symtab_resolve_symbols): Resolve varpool nodes.
1528         (lto_symtab_merge_decls_1): Prefer decls with varpool node.
1529         (lto_symtab_merge_cgraph_nodes_1): Merge varpools.
1530         * cgraph.h (varpool_node_ptr): New type.
1531         (varpool_node_ptr): New vector.
1532         (varpool_node_set_def): New structure.
1533         (varpool_node_set): New type.
1534         (varpool_node_set): New vector.
1535         (varpool_node_set_element_def): New structure.
1536         (varpool_node_set_element, const_varpool_node_set_element): New types.
1537         (varpool_node_set_iterator): New type.
1538         (varpool_node): Add prev pointers, add used_from_other_partition,
1539         in_other_partition.
1540         (varpool_node_set_new, varpool_node_set_find, varpool_node_set_add,
1541         varpool_node_set_remove, dump_varpool_node_set, debug_varpool_node_set,
1542         varpool_get_node, varpool_remove_node): Declare.
1543         (vsi_end_p, vsi_next, vsi_node, vsi_start, varpool_node_in_set_p,
1544         varpool_node_set_size): New inlines.
1545         * cgraph.c (dump_cgraph_node): Dump asm names of aliases.
1546         * tree-pass.h (varpool_node_set_def): Forward declare.
1547         (ipa_opt_pass_d): Summary writting takes vnode sets too.
1548         (ipa_write_optimization_summaries): Update prototype.
1549         * ipa-cp.c (ipcp_write_summary): Update.
1550         * ipa-reference.c (ipa_reference_write_summary): Update.
1551         * lto-cgraph.c (lto_output_varpool_node): New static function.
1552         (output_varpool): New function.
1553         (input_varpool_node): New static function.
1554         (input_varpool_1): New function.
1555         (input_cgraph): Input varpool.
1556         * ipa-pure-const.c (pure_const_write_summary): Update.
1557         * lto-streamer-out.c (lto_output): Update, output varpool too.
1558         (write_global_stream): Kill WPA hack.
1559         (produce_asm_for_decls): Update.
1560         (output_alias_pair_p): Handle variables.
1561         (output_unreferenced_globals): Output only needed partition of varpool.
1562         * ipa-inline.c (inline_write_summary): Update.
1563         * lto-streamer-in.c (lto_input_tree_ref, lto_input_tree): Do not build
1564         cgraph.
1565         * lto-section-in.c (lto_section_name): Add varpool and jump funcs.
1566         * ipa.c (hash_varpool_node_set_element, eq_varpool_node_set_element,
1567         varpool_node_set_new, varpool_node_set_add,
1568         varpool_node_set_remove, varpool_node_set_find, dump_varpool_node_set,
1569         debug_varpool_node_set): New functions.
1570         * passes.c (rest_of_decl_compilation): when in LTO do not finalize.
1571         (execute_one_pass): Process new decls too.
1572         (ipa_write_summaries_2): Pass around vsets.
1573         (ipa_write_summaries_1): Likewise.
1574         (ipa_write_summaries): Build vset; be more selective about cgraph nodes
1575         to add.
1576         (ipa_write_optimization_summaries_1): Pass around vsets.
1577         (ipa_write_optimization_summaries): Likewise.
1578         * varpool.c (varpool_get_node): New.
1579         (varpool_node): Update doubly linked lists.
1580         (varpool_remove_node): New.
1581         (dump_varpool_node): More dumping.
1582         (varpool_enqueue_needed_node): Update doubly linked lists.
1583         (decide_is_variable_needed): Kill ltrans hack.
1584         (varpool_finalize_decl): Kill lto hack.
1585         (varpool_assemble_decl): Skip decls in other partitions.
1586         (varpool_assemble_pending_decls): Update doubly linkes lists.
1587         (varpool_empty_needed_queue): Likewise.
1588         (varpool_extra_name_alias): Likewise.
1589         * lto-streamer.c (lto_get_section_name): Add vars section.
1590         * lto-streamer.h (lto_section_type): Update.
1591         (output_varpool, input_varpool): Declare.
1592
1593 2010-04-28  Mike Stump  <mikestump@comcast.net>
1594
1595         * config/i386/darwin.h (CC1_SPEC): Ignore -mdynamic-no-pic for now.
1596
1597 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1598
1599         * lto-streamer-in.c (unpack_ts_type_value_fields): Replace test for
1600         record or union type with RECORD_OR_UNION_TYPE_P predicate.
1601         (lto_input_ts_type_tree_pointers): Likewise.
1602         * lto-streamer-out.c (pack_ts_type_value_fields): Likewise.
1603         (lto_output_ts_type_tree_pointers): Likewise.
1604
1605 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1606
1607         Uniquization of constants at the Tree level
1608         * tree.h (DECL_IN_CONSTANT_POOL): New macro.
1609         (tree_decl_with_vis): Add in_constant_pool bit, move shadowed_for_var_p
1610         bit to the end.
1611         (tree_output_constant_def): Declare.
1612         * gimplify.c (gimplify_init_constructor): When using block copy, first
1613         uniquize the constant constructor on the RHS.
1614         * lto-streamer-in.c (unpack_ts_decl_with_vis_value_fields): Deal with
1615         DECL_IN_CONSTANT_POOL flag.
1616         * lto-streamer-out.c (pack_ts_decl_with_vis_value_fields): Likewise.
1617         * varasm.c (make_decl_rtl): Deal with variables belonging to the global
1618         constant pool.
1619         (assemble_variable): Deal with symbols belonging to the tree constant
1620         pool.
1621         (get_constant_section): Add ALIGN parameter and simplify.
1622         (build_constant_desc): Build a VAR_DECL and attach it to the symbol.
1623         (assemble_constant_contents): Use the expression of the VAR_DECL.
1624         (output_constant_def_contents): Use the alignment of the VAR_DECL.
1625         (tree_output_constant_def): New global function.
1626         (mark_constant): Use the expression of the VAR_DECL.
1627         (place_block_symbol): Use the alignment of the VAR_DECL and the size of
1628         its expression.
1629         (output_object_block): Likewise and assemble the expression.
1630
1631 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1632
1633         * lto-streamer.c [LTO_STREAMER_DEBUG] (tree_htab, tree_hash_entry,
1634         hash_tree, eq_tree): New tree hash table.
1635         (lto_streamer_init) [LTO_STREAMER_DEBUG]: Initialize it.
1636         [LTO_STREAMER_DEBUG] (lto_orig_address_map, lto_orig_address_get,
1637         lto_orig_address_remove): Reimplement.
1638
1639 2010-04-28  Xinliang David Li  <davidxl@google.com>
1640
1641         PR c/42643
1642         * tree-ssa-uninit.c (can_skip_redundant_opnd): New function.
1643         (compute_uninit_opnds_pos): New function.
1644         (is_non_loop_exit_postdominating): New function.
1645         (compute_control_dep_chain): New function.
1646         (find_pdom): New function.
1647         (convert_control_dep_chain_into_preds): New function.
1648         (find_predicates): New function.
1649         (find_control_equiv_block): New function.
1650         (collect_phi_def_edges): New function.
1651         (find_def_preds): New function.
1652         (find_dom): New function.
1653         (dump_predicates): New function.
1654         (get_cmp_code): New function.
1655         (is_value_included_in): New function.
1656         (find_matching_predicate_in_rest_chains): New function.
1657         (use_pred_not_overlap_with_undef_path_pred): New function.
1658         (is_use_properly_guarded): New function.
1659         (normalize_cond_1): New function.
1660         (is_and_or_or): New function.
1661         (normalize_cond): New function.
1662         (is_gcond_subset_of): New function.
1663         (is_subset_of_any): New function.
1664         (is_or_set_subset_of): New function.
1665         (is_and_set_subset_of): New function.
1666         (is_norm_cond_subset_of): New function.
1667         (is_pred_expr_subset_of): New function.
1668         (is_pred_chain_subset_of): New function.
1669         (is_included_in): New function.
1670         (is_superset_of): New function.
1671         (find_uninit_use): New function.
1672         (warn_uninitialized_phi): New function.
1673         (compute_possibly_undefined_names): New function.
1674         (ssa_undefined_value_p): New function.
1675         (execute_late_warn_uninitialized): New function.
1676         * tree-ssa.c (ssa_undefined_value_p): Removed.
1677         (warn_uninit): Changed to extern.
1678         (warn_uninitialized_phi): Removed.
1679         (warn_uninitialized_vars): Changed to extern.
1680         (execute_late_warn_uninitialized): Removed
1681         * tree-flow.h: Add new prototypes.
1682         * timevar.def: Add new time variable.
1683         * Makefile.in: Add new build file.
1684
1685 2010-04-28  Uros Bizjak  <ubizjak@gmail.com>
1686
1687         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use gnu_unique_object
1688         type if available.
1689
1690 2010-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1691
1692         PR target/22224
1693         * config/alpha/osf5.h (ASM_OUTPUT_LOCAL): Redefine.
1694
1695 2010-04-28  Martin Jambor  <mjambor@suse.cz>
1696
1697         * cgraph.h (struct cgraph_node): New field indirect_calls.
1698         (struct cgraph_indirect_call_info): New type.
1699         (struct cgraph_edge): Removed field indirect_call. New fields
1700         indirect_info, indirect_inlining_edge and indirect_unknown_callee.
1701         (cgraph_create_indirect_edge): Declare.
1702         (cgraph_make_edge_direct): Likewise.
1703         (enum LTO_cgraph_tags): New item LTO_cgraph_indirect_edge.
1704         * ipa-prop.h (struct ipa_param_call_note): Removed.
1705         (struct ipa_node_params): Removed field param_calls.
1706         (ipa_create_all_structures_for_iinln): Declare.
1707         * cgraph.c: Described indirect edges and uids in initial comment.
1708         (cgraph_add_edge_to_call_site_hash): New function.
1709         (cgraph_edge): Search also among the indirect edges, use
1710         cgraph_add_edge_to_call_site_hash to add edges to the call site hash.
1711         (cgraph_set_call_stmt): Possibly turn an indirect edge into a direct
1712         one, use cgraph_add_edge_to_call_site_hash to add edges to the call
1713         site hash.
1714         (initialize_inline_failed): Assign a reason to indirect edges.
1715         (cgraph_create_edge_1): New function.
1716         (cgraph_create_edge): Moved some functionality to
1717         cgraph_create_edge_1.
1718         (cgraph_create_indirect_edge): New function.
1719         (cgraph_edge_remove_callee): Add an assert checking for
1720         non-indirectness.
1721         (cgraph_edge_remove_caller): Special-case indirect edges.
1722         (cgraph_remove_edge): Likewise.
1723         (cgraph_set_edge_callee): New function.
1724         (cgraph_redirect_edge_callee): Use cgraph_set_edge_callee.
1725         (cgraph_make_edge_direct): New function.
1726         (cgraph_update_edges_for_call_stmt_node): Do nothing only when also
1727         the declaration of the call statement matches.
1728         (cgraph_node_remove_callees): Special-case indirect edges.
1729         (cgraph_clone_edge): Likewise.
1730         (cgraph_clone_node): Clone also the indirect edges.
1731         (dump_cgraph_node): Dump indirect_inlining_edge flag instead of
1732         indirect_call, dump count of indirect_calls edges.
1733         * ipa-prop.c (iinlining_processed_edges): New variable.
1734         (ipa_note_param_call): Create indirect edges instead of
1735         creating notes.  New parameter node.
1736         (ipa_analyze_call_uses): New parameter node, pass it on to
1737         ipa_note_param_call.
1738         (ipa_analyze_stmt_uses): Likewise.
1739         (ipa_analyze_params_uses): Pass node to ipa_analyze_stmt_uses.
1740         (print_edge_addition_message): Work on edges rather than on notes.
1741         (update_call_notes_after_inlining): Likewise, renamed to
1742         update_indirect_edges_after_inlining.
1743         (ipa_create_all_structures_for_iinln): New function.
1744         (ipa_free_node_params_substructures): Do not free notes.
1745         (ipa_edge_duplication_hook): Propagate bits within
1746         iinlining_processed_edges bitmap.
1747         (ipa_node_duplication_hook): Do not duplicate notes.
1748         (free_all_ipa_structures_after_ipa_cp): Renamed to
1749         ipa_free_all_structures_after_ipa_cp.
1750         (free_all_ipa_structures_after_iinln): Renamed to
1751         ipa_free_all_structures_after_iinln.
1752         (ipa_write_param_call_note): Removed.
1753         (ipa_read_param_call_note): Removed.
1754         (ipa_write_indirect_edge_info): New function.
1755         (ipa_read_indirect_edge_info): Likewise.
1756         (ipa_write_node_info): Do not stream notes, do stream information
1757         in indirect edges.
1758         (ipa_read_node_info): Likewise.
1759         (lto_ipa_fixup_call_notes): Removed.
1760         * ipa-cp.c (pass_ipa_cp): Set stmt_fixup to NULL.
1761         * ipa-inline.c (pass_ipa_inline): Likewise.
1762         * cgraphunit.c (verify_cgraph_node): Check also indirect edges.
1763         * cif-code.def (INDIRECT_UNKNOWN_CALL): New reason.
1764         * tree-inline.c (copy_bb): Removed an unnecessary double check for
1765         is_gimple_call.
1766         * tree-inline.c (get_indirect_callee_fndecl): Do not consider indirect
1767         edges.
1768         * lto-cgraph.c (output_outgoing_cgraph_edges): New function.
1769         (output_cgraph): Stream also indirect edges.
1770         (lto_output_edge): Added capability to stream indirect edges.
1771         (input_edge): Likewise.
1772         (input_cgraph_1): Likewise.
1773         * lto-streamer-in.c (fixup_call_stmt_edges_1): Fixup also statements
1774         of indirect edges.
1775
1776 2010-04-28  Richard Guenther  <rguenther@suse.de>
1777
1778         PR tree-optimization/43879
1779         PR tree-optimization/43909
1780         * tree-ssa-structalias.c (struct variable_info): Add
1781         only_restrict_pointers flag.
1782         (new_var_info): Initialize it.  Increment stats.total_vars here.
1783         (create_function_info_for): Do not increment stats.total_vars here.
1784         (get_function_part_constraint): Fix build with C++.
1785         (insert_into_field_list): Remove.
1786         (push_fields_onto_fieldstack): Properly merge fields.
1787         (create_variable_info_for): Split and simplify.
1788         (create_variable_info_for_1): New piece.
1789         (intra_create_variable_infos): Properly make restrict constraints
1790         from parameters.
1791
1792 2010-04-28  Richard Guenther  <rguenther@suse.de>
1793
1794         PR c++/43880
1795         * tree-inline.c (copy_bind_expr): Also copy bind expr vars value-exprs.
1796
1797 2010-04-27  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1798             Jan Hubicka <hubicka@ucw.cz>
1799
1800         * doc/invoke.texi (-Wsuggest-attribute=const,
1801         -Wsuggest-attribute=pure): Document.
1802         * ipa-pure-const.c: Include toplev.h, intl.h and opts.h.
1803         (function_always_visible_to_compiler_p,
1804         suggest_attribute, warn_function_pure, warn_function_const):
1805         New functions.
1806         (check_call): Improve debug info.
1807         (analyze_function): Do not check availability.
1808         (add_new_function): Check availability.
1809         (propagate): Output warnings.
1810         (skip_function_for_local_pure_const): New function.
1811         (local_pure_const): Use it; output warnings.
1812         * common.opt (Wsuggest-attribute=const,
1813         Wsuggest-attribute=pure): New.
1814
1815 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
1816
1817         * dwarf2out.c (def_cfa_1): After DW_CFA_def_cfa_expression
1818         force using DW_CFA_def_cfa instead of DW_CFA_def_cfa_register
1819         or DW_CFA_def_cfa_offset{,_sf}.
1820
1821 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
1822
1823         * tree.h: Fix truncated long macros.
1824
1825 2010-04-27  Kai Tietz  <kai.tietz@onevision.com>
1826
1827         * collect2.c (TARGET_64BIT): Redefine to target's default.
1828         * tlink.c: Likewise.
1829         * config/i386/cygming.h (USER_LABEL_PREFIX): Define
1830         dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
1831         * config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
1832         for underscoring __USER_LABEL_PREFIX__.
1833         * config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
1834         (SUB_LINK_ENTRY32): New.
1835         (SUB_LINK_ENTRY64): New.
1836         (LINK_SPEC): Replace entry point spec by SUB_LINK_ENTRY.
1837         * config/i386/mingw32 (SUB_LINK_ENTRY32): New.
1838         (SUB_LINK_ENTRY64): New.
1839         (SUB_LINK_ENTRY): New.
1840         (LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
1841         (DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
1842         x64 target is choosen.
1843         * config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
1844         * configure: Regenerated.
1845         * configure.ac (leading-mingw64-underscores): Option added.
1846
1847 2010-04-27  Jan Hubicka  <jh@suse.cz>
1848
1849         * doc/invoke.texi (-fipa-profile): Document.
1850         * opts.c (decode_options): Enable ipa-profile at -O1.
1851         * timevar.def (TV_IPA_PROFILE): Define.
1852         * common.opt (fipa-profile): Add.
1853         * cgraph.c (cgraph_clone_node): Set local flag and clear vtable method
1854         flag for clones.
1855         (cgraph_propagate_frequency): Handle only local ones.
1856         * tree-pass.h (pass_ipa_profile): Declare.
1857         * ipa-profile.c (gate_profile): Use flag_ipa_profile.
1858         (pass_ipa_profile): Use TV_IPA_PROFILE.
1859         * ipa.c (ipa_profile): New function.
1860         (gate_ipa_profile): Likewise.
1861         (pass_ipa_profile): New global variable.
1862         * passes.c (pass_ipa_profile): New.
1863
1864 2010-04-27  Nathan Froyd  <froydnj@codesourcery.com>
1865
1866         * config/arm/arm.c (arm_expand_builtin): Remove redundant declaration.
1867
1868 2010-04-27  Martin Jambor  <mjambor@suse.cz>
1869
1870         PR middle-end/43812
1871         * ipa.c (dissolve_same_comdat_group_list): New function.
1872         (function_and_variable_visibility): Call
1873         dissolve_same_comdat_group_list when comdat group contains external or
1874         newly local nodes.
1875         * cgraphunit.c (verify_cgraph_node): Verify that same_comdat_group
1876         lists are circular and that they contain only DECL_ONE_ONLY nodes.
1877
1878 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
1879
1880         * varasm.c (decode_addr_const): Handle special case of INDIRECT_REF.
1881         (const_hash_1) <VECTOR_CST>: New case.
1882         (compare_constant) <VECTOR_CST>: Likewise.
1883         <ADDR_EXPR>: Deal with LABEL_REFs.
1884         (copy_constant) <VECTOR_CST>: New case.
1885
1886 2010-04-27  Jan Hubicka  <jh@suse.cz>
1887
1888         * cgraph.c (cgraph_propagate_frequency): New function.
1889         * cgraph.h (cgraph_propagate_frequency): Declare.
1890         * ipa-inline.c (cgraph_clone_inlined_nodes): Call
1891         cgraph_propagate_frequency.
1892
1893 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
1894
1895         * unwind-dw2.c (_Unwind_DebugHook): Add used and noclone attributes.
1896
1897 2010-04-27  Bernd Schmidt  <bernds@codesourcery.com>
1898
1899         PR target/40657
1900         * config/arm/arm.c (thumb1_extra_regs_pushed): New function.
1901         (thumb1_expand_prologue, thumb1_output_function_prologue): Call it
1902         here to determine which regs to push and how much stack to reserve.
1903
1904 2010-04-27  Jie Zhang  <jie@codesourcery.com>
1905
1906         * doc/gimple.texi (gimple_statement_with_ops): Remove
1907         addresses_taken field.
1908         (gimple_statement_with_memory_ops): Likewise.
1909
1910 2010-04-27  Jan Hubicka  <jh@suse.cz>
1911
1912         * tree-inline.c (eni_inlining_weights): Remove.
1913         (estimate_num_insns): Special case more builtins.
1914
1915 2010-04-27  Shujing Zhao  <pearly.zhao@oracle.com>
1916
1917         PR c/32207
1918         * c-typeck.c (build_binary_op): Move forward check for comparison
1919         pointer with null pointer constant and adjust the diagnostic message.
1920
1921 2010-04-27  Dave Korn  <dave.korn.cygwin@gmail.com>
1922
1923         PR lto/42776
1924         * configure.ac (gcc_cv_as_section_has_align): Set if installed
1925         binutils supports extended .section directive needed by LTO, or
1926         warn if older binutils found.
1927         (LTO_BINARY_READER): New AC_SUBST'd variable.
1928         (LTO_USE_LIBELF): Likewise.
1929         * gcc/config.gcc (lto_binary_reader): New target-specific configure
1930         variable.
1931         * gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
1932         (LTO_USE_LIBELF): Likewise.
1933         * configure: Regenerate.
1934
1935         * collect2.c (is_elf): Rename from this ...
1936         (is_elf_or_coff): ... to this, and recognize and allow i386 COFF
1937          object files in addition to ELF-formatted ones.
1938         (scan_prog_file): Caller updated.  Also allow for LTO info marker
1939         symbol to be prefixed or not by an extra underscore.
1940
1941         * config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
1942         * config/i386/winnt.c: Also #include lto-streamer.h
1943         (i386_pe_asm_named_section): Specify 1-byte section alignment for
1944         LTO named sections.
1945         (i386_pe_asm_output_aligned_decl_common): Add comment.
1946         (i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
1947
1948 2010-04-27  Hans-Peter Nilsson  <hp@bitrange.com>
1949
1950         PR target/43889
1951         * config/mmix/mmix.md ("*divdi3_nonknuth", "*moddi3_nonknuth"):
1952         Add missing earlyclobber for second alternative.
1953
1954 2010-04-26  Bernd Schmidt  <bernds@codesourcery.com>
1955
1956         * df-problems.c (df_simulate_initialize_forwards): Set, don't clear,
1957         bits for artificial defs at the top of the block.
1958         * fwprop.c (single_def_use_enter_block): Don't call it.
1959
1960 2010-04-26  Jack Howarth <howarth@bromo.med.uc.edu>
1961
1962         PR 43715
1963         * gcc/configure.ac: Use "$gcc_cv_nm -g" on darwin
1964         instead of "$gcc_cv_objdump -T".
1965         Use "-undefined dynamic_lookup" on darwin.
1966         * gcc/configure: Regenerate.
1967
1968 2010-04-26  Jakub Jelinek  <jakub@redhat.com>
1969
1970         PR c/43893
1971         * c-omp.c (c_finish_omp_for): Handle also EQ_EXPR.
1972
1973 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
1974
1975         * c-parser.c (struct c_token): Move location field up.
1976         * c-tree.h (struct c_typespec): Move expr_const_operands field up.
1977         (struct c_declspecs): Convert typespec_word, storage_class, and
1978         default_int_p into bitfields.
1979         (struct c_declarator): Move loc field up.
1980
1981 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
1982
1983         * cfgloop.h (struct loop): Move can_be_parallel field up.
1984         * ipa-prop.h (struct ip_node_params): Move bitfields up.
1985         * tree-ssa-loop-ivopts.c (struct version_info): Move inv_id field
1986         down.
1987         (struct iv_cand): Convert pos field into a bitfield.
1988         * tree-vectorizer.h (struct _loop_vec_info): Move loop_line_number
1989         field up.
1990         (struct _stmt_vec_info): Shuffle fields for better packing.
1991
1992 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
1993
1994         * varasm.c (IN_NAMED_SECTION): Remove guard.
1995         * config/arm/unknown-elf.h (IN_NAMED_SECTION): Rename to...
1996         (IN_NAMED_SECTION_P): ...this.
1997         (ASM_OUTPUT_ALIGNED_BSS): Adjust for above renaming.
1998         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.
1999
2000 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
2001
2002         * gimplify.c (gimplify_cond_expr): Use THEN_ and ELSE_ local variables.
2003         Use VOID_TYPE_P for all void type tests.  Adjust TYPE variable instead
2004         of shadowing it.  Fix comments.
2005
2006 2010-04-26  Jan Hubicka  <jh@suse.cz>
2007
2008         * cgraph.c (cgraph_create_node): Set node frequency to normal.
2009         (cgraph_clone_node): Copy function frequency.
2010         * cgraph.h (node_frequency): New enum
2011         (struct cgraph_node): Add.
2012         * final.c (rest_of_clean_state): Update.
2013         * lto-cgraph.c (lto_output_node): Output node frequency.
2014         (input_overwrite_node): Input node frequency.
2015         * tre-ssa-loop-ivopts (computation_cost): Update.
2016         * lto-streamer-out.c (output_function): Do not output function
2017         frequency.
2018         * predict.c (maybe_hot_frequency_p): Update and handle functions
2019         executed once.
2020         (cgraph_maybe_hot_edge_p): Likewise; use cgraph frequency instead of
2021         attribute lookup.
2022         (probably_never_executed_bb_p, optimize_function_for_size_p): Update.
2023         (compute_function_frequency): Set noreturn functions to be executed
2024         once.
2025         (choose_function_section): Update.
2026         * lto-streamer-in.c (input_function): Do not input function frequency.
2027         * function.c (allocate_struct_function): Do not initialize function
2028         frequency.
2029         * function.h (function_frequency): Remove.
2030         (struct function): Remove function frequency.
2031         * ipa-profile.c (CGRAPH_NODE_FREQUENCY): Remove.
2032         (try_update): Update.
2033         * tree-inline.c (initialize_cfun): Do not update function frequency.
2034         * passes.c (pass_init_dump_file): Update.
2035         * i386.c (ix86_compute_frame_layout): Update.
2036         (ix86_pad_returns): Update.
2037
2038 2010-04-26  Jie Zhang  <jie@codesourcery.com>
2039
2040         PR tree-optimization/43833
2041         * tree-vrp.c (range_int_cst_p): New.
2042         (range_int_cst_singleton_p): New.
2043         (extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
2044         when both operands are constants.  Use range_int_cst_p in
2045         BIT_IOR_EXPR case.
2046
2047 2010-04-26  Jan Hubicka  <jh@suse.cz>
2048
2049         * cgraphunit.c (cgraph_copy_node_for_versioning): Fix profile updating.
2050
2051 2010-04-26  Richard Guenther  <rguenther@suse.de>
2052
2053         PR lto/43080
2054         * gimple.c (gimple_decl_printable_name): Deal gracefully
2055         with a NULL DECL_NAME.
2056
2057 2010-04-26  Richard Guenther  <rguenther@suse.de>
2058
2059         PR lto/42425
2060         * tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
2061         if emitting debug information and it is either a function
2062         or a namespace decl.
2063
2064 2010-04-26  Ira Rosen  <irar@il.ibm.com>
2065
2066         * tree-vectorizer.h (struct _stmt_vec_info): Add new field to
2067         determine if the statement is vectorizable, and a macro to access it.
2068         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
2069         Skip statements that can't be vectorized. If the analysis fails,
2070         mark the statement as unvectorizable if vectorizing basic block.
2071         (vect_compute_data_refs_alignment): Likewise.
2072         (vect_verify_datarefs_alignment): Skip statements marked as
2073         unvectorizable. Add print.
2074         (vect_analyze_group_access): Skip statements that can't be
2075         vectorized. If the analysis fails, mark the statement as
2076         unvectorizable if vectorizing basic block.
2077         (vect_analyze_data_ref_accesses, vect_analyze_data_refs): Likewise.
2078         * tree-vect-stmts.c (vectorizable_store): Fix the number of
2079         generated stmts for SLP.
2080         (new_stmt_vec_info): Initialize the new field.
2081         * tree-vect-slp.c (vect_build_slp_tree): Fail to vectorize
2082         statements marked as unvectorizable.
2083
2084 2010-04-25  Joseph Myers  <joseph@codesourcery.com>
2085
2086         * c-common.c (flag_isoc1x): New.
2087         (flag_isoc99): Update comment.
2088         * c-common.h (flag_isoc1x): New.
2089         (flag_isoc99): Update comment.
2090         * c-cppbuiltin.c (builtin_define_float_constants): Also define
2091         __<type>_DECIMAL_DIG__.
2092         * c-opts.c (set_std_c1x): New.
2093         (c_common_handle_option): Handle -std=c1x and -std=gnu1x.
2094         (set_std_c89, set_std_c99): Also set flag_isoc1x to 0.
2095         * c.opt (-std=c1x, -std=gnu1x): New options.
2096         * doc/cpp.texi: Mention -std=c1x.
2097         * doc/cppopts.texi (-std=c1x, -std=gnu1x): Document.
2098         * doc/extend.texi: Mention -std=c1x and -std=gnu1x.
2099         * doc/invoke.texi (-std=c1x, -std=gnu1x): Document.
2100         * doc/standards.texi: Mention C1X.
2101         * ginclude/float.h (FLT_DECIMAL_DIG, DBL_DECIMAL_DIG,
2102         LDBL_DECIMAL_DIG, FLT_HAS_SUBNORM, DBL_HAS_SUBNORM,
2103         LDBL_HAS_SUBNORM, FLT_TRUE_MIN, DBL_TRUE_MIN, LDBL_TRUE_MIN):
2104         Define for C1X.
2105
2106 2010-04-25  Uros Bizjak  <ubizjak@gmail.com>
2107
2108         * config/i386/gmon-sol2.c (_mcleanup): Change format string
2109         placeholder from 0x%x to %#x.
2110         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
2111         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
2112         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
2113         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
2114         * config/i386/i386.c (ix86_target_string): Ditto.
2115         (output_pic_addr_const): Ditto.
2116         (print_operand): Ditto.
2117
2118 2010-04-25  Paolo Bonzini  <bonzini@gnu.org>
2119
2120         * combine.c (find_split_point): Add third argument.  Use it
2121         to find nested multiply-accumulate instructions.  Adjust calls.
2122         (try_combine): Adjust call to find_split_point.
2123
2124 2010-04-24  Gerald Pfeifer  <gerald@pfeifer.com>
2125
2126         * doc/contrib.texi (Contributors): Add Dodji Seketeli.
2127
2128 2010-04-24  Bernd Schmidt  <bernds@codesourcery.com>
2129
2130         PR tree-optimization/41442
2131         * fold-const.c (merge_truthop_with_opposite_arm): New function.
2132         (fold_binary_loc): Call it.
2133
2134 2010-04-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2135
2136         * toplev.c (general_init): Set default for fdiagnostics-show-option.
2137         * opts.c (common_handle_option): Allow disabling it.
2138         * common.opt (fdiagnostics-show-option): Add Var. Enabled by default.
2139
2140 2010-04-23  Eric Botcazou  <ebotcazou@adacore.com>
2141
2142         * expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: Only use conversion
2143         between modes if both types are integral.
2144
2145 2010-04-23  Richard Guenther  <rguenther@suse.de>
2146
2147         PR tree-optimization/43572
2148         * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.
2149
2150 2010-04-23  Richard Guenther  <rguenther@suse.de>
2151
2152         PR lto/43455
2153         * tree-inline.c (tree_can_inline_p): Also check compatibility
2154         of return types.
2155
2156 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2157
2158         PR tree-optimization/43846
2159         * tree-sra.c (struct access): New flag grp_assignment_read.
2160         (build_accesses_from_assign): Set grp_assignment_read.
2161         (sort_and_splice_var_accesses): Propagate grp_assignment_read.
2162         (enum mark_read_status): New type.
2163         (analyze_access_subtree): Propagate grp_assignment_read, create
2164         accesses also if both direct_read and root->grp_assignment_read.
2165
2166 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2167
2168         PR middle-end/43835
2169         * tree-sra.c (ipa_sra_preliminary_function_checks): Check that the
2170         function does not have type attributes.
2171
2172 2010-04-23  Richard Guenther  <rguenther@suse.de>
2173
2174         PR lto/42653
2175         * tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
2176         of FUNCTION_DECLs.
2177
2178 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2179
2180         * sese.h (create_if_region_on_edge): Remove.
2181
2182         * sese.c (create_if_region_on_edge): Make static.
2183
2184         * tree-inline.c: Do not include ggc.h.
2185
2186         * expr.c: Do not include ggc.h.
2187
2188         * Makefile.in (tree-inline.o, expr.o): Remove $(GGC_H) from
2189         dependencies.
2190
2191 2010-04-22  Kaz Kojima  <kkojima@gcc.gnu.org>
2192
2193         PR target/43744
2194         * config/sh/sh.c (find_barrier): Don't emit a constant pool
2195         in the middle of insns for casesi_worker_2.
2196
2197 2010-04-22  David Edelsohn  <edelsohn@gnu.org>
2198
2199         * config/rs6000/x-aix: Override LDFLAGS for all COMPILERS.
2200
2201 2010-04-22  Ira Rosen  <irar@il.ibm.com>
2202
2203         PR tree-optimization/43842
2204         * tree-vect-loop.c (vect_create_epilog_for_reduction): Handle
2205         loop unrolling in update of exit phis. Fix comment.
2206         * tree-vect-slp.c (vect_analyze_slp): Check that there are at
2207         least two reduction statements in the loop before starting SLP
2208         analysis.
2209
2210 2010-04-22  Nick Clifton  <nickc@redhat.com>
2211
2212         * config/stormy16/stormy16-lib2.c (__ucmpsi2): Fix thinko.
2213
2214 2010-04-22  Alexander Monakov  <amonakov@ispras.ru>
2215
2216         * tree-ssa-reassoc.c (eliminate_plus_minus_pair): Handle BIT_NOT_EXPR
2217         to simplify a + ~a.
2218
2219 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2220
2221         * tree-parloops.c (loop_parallel_p): New argument
2222         parloop_obstack.  Pass it down.
2223         (parallelize_loops): New variable parloop_obstack.  Initialize it,
2224         pass it down, free it.
2225
2226         * tree-loop-linear.c (linear_transform_loops): Pass down
2227         lambda_obstack.
2228
2229         * tree-data-ref.h (lambda_compute_access_matrices): New argument
2230         of type struct obstack *.
2231
2232         * tree-data-ref.c (analyze_subscript_affine_affine): New variable
2233         scratch_obstack.  Initialize it, pass down, free it.
2234
2235         * lambda.h (lambda_loop_new): Remove.
2236         (lambda_matrix_new, lambda_matrix_inverse)
2237         (lambda_trans_matrix_new, lambda_trans_matrix_inverse): New
2238         argument of type struct obstack *.
2239
2240         * lambda-trans.c (lambda_trans_matrix_new): New argument
2241         lambda_obstack.  Pass it down, use obstack allocation for ret.
2242         (lambda_trans_matrix_inverse): New argument lambda_obstack.  Pass
2243         it down.
2244
2245         * lambda-mat.c (lambda_matrix_get_column)
2246         (lambda_matrix_project_to_null): Remove.
2247         (lambda_matrix_new): New argument lambda_obstack.  Use obstack
2248         allocation for mat.
2249         (lambda_matrix_inverse_hard, lambda_matrix_inverse): New argument
2250         lambda_obstack.
2251
2252         * lambda-code.c (lambda_loop_new): New function.
2253         (lambda_lattice_new, compute_nest_using_fourier_motzkin)
2254         (lambda_compute_auxillary_space, lambda_compute_target_space)
2255         (lambda_loopnest_transform, gcc_loop_to_lambda_loop)
2256         (lambda_loopnest_to_gcc_loopnest): Pass down lambda_obstack.
2257         (build_access_matrix): New argument lambda_obstack.  Use obstack
2258         allocation for am.
2259         (lambda_compute_step_signs, lambda_compute_access_matrices): New
2260         argument lambda_obstack.  Pass it down.
2261
2262 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2263
2264         * optabs.h (expand_widening_mult): Declare.
2265
2266 2010-04-22  Richard Guenther  <rguenther@suse.de>
2267
2268         PR tree-optimization/43845
2269         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Properly
2270         lookup the CALL_EXPR function and arguments.
2271
2272 2010-04-22  Nick Clifton  <nickc@redhat.com>
2273
2274         * config/stormy16/stormy16.c
2275         (xstormy16_asm_output_aligned_common): Handle a NULL decl parameter.
2276         * config/stormy16/stormy16.h: Tidy up formatting.
2277         (DONT_USE_BUILTIN_SETJMP): Remove definition.
2278         * config/stormy16/stormy16.c (cbranchsi4): Delete pattern.
2279         (ineqbranchsi): Delete pattern.
2280         * config/stormy16/stormy16-lib2-ucmpsi2.c: New file.
2281         * config/stormy16/stormy16-lib2.c (__ucmpsi2): New function.
2282         * config/stormy16/t-stormy16 (LIB2FUNCS_EXTRA): Add
2283         stormy16-lib2-ucmpsi2.c.
2284
2285 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2286
2287         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and
2288         df_simulate_find_noclobber_defs as appropriate.  Keep track of an
2289         extra set merge_set_noclobber, and use it to relax the final test
2290         slightly.
2291         * df.h (df_simulate_find_noclobber_defs): Declare.
2292         * df-problems.c (df_simulate_find_defs): Don't ignore partial or
2293         conditional defs.
2294         (df_simulate_find_noclobber_defs): New function.
2295
2296 2010-04-22  Uros Bizjak  <ubizjak@gmail.com>
2297
2298         * config/i386/i386.md: Use {} around multi-line preparation statements.
2299
2300 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2301
2302         * c-tree.h (push_init_level, pop_init_level, set_init_index)
2303         (process_init_element): New argument of type struct obstack *.
2304
2305         * c-typeck.c (push_init_level, pop_init_level, set_designator)
2306         (set_init_index, set_init_label, set_nonincremental_init)
2307         (set_nonincremental_init_from_string, find_init_member)
2308         (output_init_element, output_pending_init_elements)
2309         (process_init_element): New argument braced_init_obstack.  Pass it
2310         down.
2311         (push_range_stack, add_pending_init): New argument
2312         braced_init_obstack.  Use obstack allocation.
2313
2314         * c-parser.c (c_parser_initelt, c_parser_initval): New argument
2315         braced_init_obstack.  Pass it down.
2316         (c_parser_braced_init): New variables ret, braced_init_obstack.
2317         Initialize obstack, pass it down and finally free it.
2318
2319 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2320
2321         PR middle-end/29274
2322         * tree-pass.h (pass_optimize_widening_mul): Declare.
2323         * tree-ssa-math-opts.c (execute_optimize_widening_mul,
2324         gate_optimize_widening_mul): New static functions.
2325         (pass_optimize_widening_mul): New.
2326         * expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: New case.
2327         <case MULT_EXPR>: Remove support for widening multiplies.
2328         * tree.def (WIDEN_MULT_EXPR): Tweak comment.
2329         * cfgexpand.c (expand_debug_expr) <case WIDEN_MULT_EXPR>: Use
2330         simplify_gen_unary rather than directly building extensions.
2331         * tree-cfg.c (verify_gimple_assign_binary): Add tests for
2332         WIDEN_MULT_EXPR.
2333         * expmed.c (expand_widening_mult): New function.
2334         * passes.c (init_optimization_passes): Add pass_optimize_widening_mul.
2335
2336 2010-04-21  Jan Hubicka  <jh@suse.cz>
2337
2338         * timevar.def (TV_WHOPR_WPA_FIXUP): Remove.
2339         * lto-section-in.c (lto_section_name): Remove wpa_fixup.
2340         * lto-wpa-fixup.c: Remove.
2341         * Makefile.in (lto-wpa-fixup.o): Remove.
2342         * passes.c (init_optimization_passes): Remove pass_ipa_lto_wpa_fixup.
2343         (execute_all_ipa_transforms): Set cgraph_state to CGRAPH_STATE_IPA_SSA.
2344         * lto-streamer.c (lto_get_section_name): Remove wpa_fixup section.
2345
2346 2010-04-21  Jan Hubicka  <jh@suse.cz>
2347
2348         * tree-pass.h (ipa_opt_pass_d): Rename function_read_summary;
2349         add write_optimization_summary, read_optimization_summary.
2350         (ipa_write_summaries_of_cgraph_node_set): Remove.
2351         (ipa_write_optimization_summaries): Declare.
2352         (ipa_read_optimization_summaries): Declare.
2353         * ipa-cp.c (pass_ipa_cp): Update.
2354         * ipa-reference.c (pass_ipa_reference): Update.
2355         * ipa-pure-const.c (pass_ipa_pure_const): Update.
2356         * lto-streamer-out.c (pass_ipa_lto_gimple, pass_ipa_lto_finish):
2357         Update.
2358         * ipa-inline.c (pass_ipa_inline): Update.
2359         * ipa.c (pass_ipa_whole_program): Update.
2360         * lto-wpa-fixup.c (pass_ipa_lto_wpa_fixup): Update.
2361         * passes.c (ipa_write_summaries_1): Do not test wpa.
2362         (ipa_write_optimization_summaries_1): New.
2363         (ipa_write_optimization_summaries): New.
2364         (ipa_read_summaries): Do not test ltrans.
2365         (ipa_read_optimization_summaries_1): New.
2366         (ipa_read_optimization_summaries): New.
2367
2368 2010-04-21  Jan Hubicka  <jh@suse.cz>
2369
2370         * lto-cgraph.c (lto_output_node): Do not output comdat groups
2371         for boundary nodes.
2372         (output_cgraph): Do not arrange comdat groups for boundary nodes.
2373
2374 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2375
2376         PR debug/40040
2377         * dwarf2out.c (add_name_and_src_coords_attributes): Add
2378         DW_AT_{,MIPS_}linkage_name even for Fortran decls.
2379
2380 2010-04-21  Jan Hubicka  <jh@suse.cz>
2381
2382         * ipa-prop.c (ipa_edge_removal_hook): Check for bounds.
2383
2384 2010-04-21  Jan Hubicka  <jh@suse.cz>
2385
2386         * varpool.c (decide_is_variable_needed): Variable is always needed
2387         during ltrans.
2388
2389 2010-04-21  Jan Hubicka  <jh@suse.cz>
2390
2391         * opts.c (decode_options): Enable pure-const pass for whopr.
2392
2393 2010-04-21  Jan Hubicka  <jh@suse.cz>
2394
2395         * cgraph.c (dump_cgraph_node): Dump also assembler name.
2396         * ipa-inline.c (cgraph_decide_inlining_of_small_functions): Do not ice
2397         at WPA dumping.
2398         (cgraph_decide_inlining): Do not expect callee to be removed in all
2399         cases.
2400
2401 2010-04-21  Eric B. Weddington  <eric.weddington@atmel.com>
2402
2403         * config/avr/avr-devices.c (avr_mcu_types): Add missing comma.
2404
2405 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
2406
2407         * config/i386/i386.md (x86_shrd): Add athlon_decode and
2408         amdfam10_decode attributes.
2409
2410 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2411
2412         PR middle-end/43570
2413         * omp-low.c (scan_sharing_clauses): Don't scan_omp_op
2414         OMP_CLAUSE_DECL for OMP_CLAUSE_COPYPRIVATE.
2415         (lower_copyprivate_clauses): Use private var in outer
2416         context instead of original var.  Make sure the types
2417         are correct for VLAs.
2418
2419 2010-04-21  Richard Guenther  <rguenther@suse.de>
2420
2421         * tree-ssa-structalias.c (do_ds_constraint): Avoid escaping
2422         to non-pointer objects.
2423
2424 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2425
2426         * dwarf2out.c (add_var_loc_to_decl): Add LABEL argument.  Drop
2427         last chain entry if it starts with the still current label.
2428         (add_location_or_const_value_attribute): Check that
2429         loc_list->first->next is NULL instead of comparing ->first with ->last.
2430         (dwarf2out_var_location): Pass last_label resp. last_postcall_label
2431         to add_var_loc_to_decl.
2432
2433         * dwarf2out.c (output_call_frame_info): For dw_cie_version
2434         >= 4 add also address size and segment size fields into CIE header.
2435
2436         * unwind-dw2.c (extract_cie_info): Handle CIE version 4, as
2437         long as address size is the same as sizeof (void *) and
2438         segment size is 0.
2439         * unwind-dw2-fde.c (get_cie_encoding): Likewise.  If
2440         address size or segment size is unexpected, return DW_EH_PE_omit.
2441         (classify_object_over_fdes): If get_cie_encoding returned
2442         DW_EH_PE_omit, return -1.
2443         (init_object): If classify_object_over_fdes returned -1,
2444         pretend there were no FDEs at all.
2445
2446 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
2447
2448         * config/i386/i386.md (bswap<mode>2): Macroize expander from
2449         bswap{si,di}2 using SWI48 mode iterator.
2450         (*bswap<mode>2_movbe): Macroize insn from *bswap{si,di}_movbe using
2451         SWI48 mode iterator.  Set type attribute of bswap insn to bitmanip,
2452         set modrm attribute of bswap insn to 0 and remove length attribute.
2453         (*bswap<mode>2_1): Macroize insn from *bswap{si,di}_1 using SWI48 mode
2454         iterator.  Set type attribute to bitmanip, set modrm attribute to 0,
2455         set mode attribute to <MODE> and remove length attribute.
2456
2457 2010-04-20  James E. Wilson  <wilson@codesourcery.com>
2458
2459         PR rtl-optimization/43520
2460         * ira-lives.c (ira_implicitly_set_insn_hard_regs): Exclude classes with
2461         zero available registers.
2462
2463 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2464
2465         * builtins.c (fold_builtin_cproj): Fold more cases.
2466
2467 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2468
2469         * builtins.c (build_complex_cproj, fold_builtin_cproj): New.
2470         (fold_builtin_1): Fold builtin cproj.
2471         * builtins.def (BUILT_IN_CPROJ, BUILT_IN_CPROJF, BUILT_IN_CPROJL):
2472         Use ATTR_CONST_NOTHROW_LIST.
2473
2474 2010-04-20  Uros Bizjak  <ubizjak@gmail.com>
2475
2476         * config/i386/i386.md (ffs<mode>2): Macroize expander from ffs_cmove
2477         and ffsdi2 using SWI48 mode iterator.  Expand SImode insn through
2478         ffsi2_no_cmove for !TARGET_CMOVE.
2479         (ffssi2_no_cmove): Rename from *ffs_no_cmove.  Make public.
2480         (ffssi2): Remove expander.
2481         (*ffs<mode>_1): Macroize insn from *ffs{si,di} using SWI48
2482         mode iterator.
2483         (ctz<mode>2): Ditto from ctz{si,di}2.
2484         (clz<mode>2): Macroize expander from ctz{hi,si,di}2 using SWI248
2485         mode iterator.
2486         (clz<mode>2_abm): Macroize insn from clz{hi,si,di}2_abm using SWI248
2487         mode iterator.
2488
2489 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
2490
2491         * dwarf2out.c (AT_linkage_name): Define.
2492         (clone_as_declaration): Handle DW_AT_linkage_name.
2493         (add_name_and_src_coords_attributes): Use AT_linkage_name instead
2494         of DW_AT_MIPS_linkage_name.
2495         (move_linkage_attr): Likewise.
2496         (dwarf2out_finish): Likewise.
2497
2498 2010-04-20  Xinliang David Li  <davidxl@gcc.gnu.org>
2499
2500         PR middle-end/41952
2501         * fold-const.c (fold_comparison): New folding rule.
2502
2503 2010-04-20  Anatoly Sokolov  <aesok@post.ru>
2504
2505         * double-int.h (double_int_setbit): Declare.
2506         * double-int.c (double_int_setbit): New function.
2507         * rtl.h (immed_double_int_const): Declare.
2508         * emit-rtl.c (immed_double_int_const): New function.
2509         * builtins.c (expand_builtin_signbit): Clean up, use double_int_*
2510         and immed_double_int_const functions.
2511         * optabs.c (expand_absneg_bit, expand_copysign_absneg,
2512         expand_copysign_bit):  (Ditto.).
2513         * simplify-rtx.c (simplify_binary_operation_1): (Ditto.).
2514         * tree-ssa-address.c (addr_for_mem_ref): (Ditto.).
2515         * dojump.c (prefer_and_bit_test): (Ditto.).
2516         * expr.c (convert_modes, reduce_to_bit_field_precision,
2517         const_vector_from_tree): (Ditto.).
2518         * expmed.c (mask_rtx, lshift_value): (Ditto.).
2519
2520 2010-04-20  Jan Hubicka  <jh@suse.cz>
2521
2522         * cgraph.c (cgraph_remove_node): Kill bodies in other partitoin.
2523         (dump_cgraph_node): Dump new flags.
2524         * cgraph.h (struct cgraph_node): Add flags
2525         reachable_from_other_partition and in_other_partition.
2526         (cgraph_can_remove_if_no_direct_calls_p): Functions used by
2527         other partition can not be removed.
2528         * cgraphunit.c (cgraph_mark_functions_to_output): Functions used by
2529         the other partition must be output; silence sanity checking on
2530         leaking functions bodies from other paritition.
2531         * lto-cgraph.c (reachable_from_other_partition_p): New function.
2532         (lto_output_node): Output new flags; do not sanity check that inline
2533         clones are output; drop lto_forced_extern_inline_p code; do not mock
2534         visibility flags at partition boundaries.
2535         (add_node_to): New function.
2536         (output_cgraph): Use it to sort functions so masters appear before
2537         clones.
2538         (input_overwrite_node): Input new flags.
2539         * passes.c (ipa_write_summaries): Do not call
2540         lto_new_extern_inline_states.
2541         * lto-section-out.c (forced_extern_inline,
2542         lto_new_extern_inline_states lto_delete_extern_inline_states,
2543         lto_force_functions_extern_inline, lto_forced_extern_inline_p): Kill.
2544         * lto-streamer.h (lto_new_extern_inline_states,
2545         * lto_delete_extern_inline_states, lto_force_functions_extern_inline,
2546         lto_forced_extern_inline_p): Kill.
2547
2548 2010-04-20  Richard Guenther  <rguenther@suse.de>
2549
2550         * tree-ssa-structalias.c (do_sd_constraint): Add edges only
2551         from vars that can have pointers.
2552         (process_constraint): Dump useless constraints.
2553
2554 2010-04-20  Richard Guenther  <rguenther@suse.de>
2555
2556         * tree-ssa-structalias.c (do_structure_copy): Properly handle DEREF.
2557         (dump_sa_points_to_info): Remove asserts.
2558         (init_base_vars): nothing_id isn't an escape point nor does it
2559         have pointers.
2560
2561 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
2562
2563         * tree.h (TYPE_REF_IS_RVALUE): Define.
2564         * dwarf2out.c (attr_checksum_ordered, is_type_die, is_comdat_die,
2565         should_move_die_to_comdat, prune_unused_types_walk): Handle
2566         DW_TAG_rvalue_reference_type like DW_TAG_reference_type.
2567         (modified_type_die, gen_reference_type_die): Emit
2568         DW_TAG_rvalue_reference_type instead of DW_TAG_reference_type
2569         if TYPE_REF_IS_RVALUE and -gdwarf-4.
2570
2571 2010-04-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2572
2573         PR target/43635
2574         * config/s390/s390.c (s390_emit_call): Turn direct into indirect
2575         calls for -fpic -m31 if they have been sibcall optimized.
2576
2577 2010-04-19  James E. Wilson  <wilson@codesourcery.com>
2578
2579         * config/ia64/ia64.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Make
2580         ar.lc fixed and call-used.
2581
2582         * config/ia64/ia64.c (TARGET_INVALID_WITHIN_DOLOOP): Define.
2583
2584 2010-04-19  Jan Hubicka  <jh@suse.cz>
2585
2586         * opts.c (decode_options): Disable whpr incompatible passes.
2587         * lto/lto.c (lto_1_to_1_map): Skip clones.
2588         (read_cgraph_and_symbols): Do not mark everything as needed.
2589         (do_whole_program_analysis): Do map only after optimizing;
2590         set proper cgraph_state; use passmanager.
2591
2592 2010-04-19  DJ Delorie  <dj@redhat.com>
2593
2594         * cfgexpand.c (expand_debug_expr): Check for mismatched modes in
2595         POINTER_PLUS_EXPR and fix them.
2596
2597 2010-04-19  Eric B. Weddington  <eric.weddington@atmel.com>
2598
2599         * config/avr/avr-devices.c (avr_mcu_types): Add support for new
2600         devices atmega644pa, attiny2313a, attiny24a, attiny261a, attiny4313,
2601         attiny44a, attiny861a, atmega16a, atmega168a, atmega164a, atmega165a,
2602         atmega169a, atmega169pa, atmega16hva2, atmega324a, atmega324pa,
2603         atmega325a, atmega3250a, atmega328, atmega329a, atmega329pa,
2604         atmega3290a, atmega48a, atmega644a, atmega645a, atmega645p,
2605         atmega6450a, atmega6450p, atmega649a, atmega649p, atmega6490a,
2606         atmega6490p, atmega64hve, atmega88a, atmega88pa, attiny461a, attiny84a,
2607         m3000. Remove support for devices atmega8m1, atmega8c1, atmega16c1,
2608         atmega4hvd, atmega8hvd, attiny327, m3000f, m3000s, m3001b.
2609         * config/avr/t-avr.c (MULTILIB_MATCHES): Same.
2610
2611 2010-04-19  Eric Botcazou  <ebotcazou@adacore.com>
2612
2613         * ifcvt.c (noce_try_cmove_arith): Fix long lines.
2614         (check_cond_move_block): Likewise.
2615         (cond_move_process_if_block): Likewise.
2616         (noce_find_if_block): Improve formatting.
2617         (find_if_header): Pass 0 to memset and tweak conditions.
2618         (cond_exec_find_if_block): Fix long lines and tweak conditions.
2619
2620 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2621
2622         * dwarf2out.c (lower_bound_default): For DW_LANG_Python return 0
2623         for -gdwarf-4.
2624
2625         PR middle-end/43337
2626         * tree-nested.c (convert_nonlocal_omp_clauses): OMP_CLAUSE_PRIVATE
2627         with non-local decl doesn't need chain.
2628
2629 2010-04-19  Vladimir Makarov  <vmakarov@redhat.com>
2630
2631         * ira-color.c (allocno_reload_assign): Avoid accumulating
2632         reload registers in ALLOCNO_TOTAL_CONFLICT_HARD_REGS.
2633
2634 2010-04-19  Martin Jambor  <mjambor@suse.cz>
2635
2636         * gimple.h (create_tmp_reg): Declare.
2637         * gimplify.c (create_tmp_reg): New function.
2638         (gimplify_return_expr): Use create_tmp_reg.
2639         (gimplify_omp_atomic): Likewise.
2640         (gimple_regimplify_operands): Likewise.
2641         * tree-dfa.c (make_rename_temp): Likewise.
2642         * tree-predcom.c (predcom_tmp_var): Likewise.
2643         (reassociate_to_the_same_stmt): Likewise.
2644         * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
2645         (get_replaced_param_substitute): Likewise.
2646         * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
2647         * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
2648         * tree-ssa-pre.c (get_representative_for): Likewise.
2649         (create_expression_by_pieces): Likewise.
2650         * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
2651         (create_tailcall_accumulator): Likewise.
2652
2653 2010-04-19  Martin Jambor  <mjambor@suse.cz>
2654
2655         * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
2656         new_stmt.
2657         (cgraph_materialize_all_clones): Assert !need_ssa_update_p.
2658
2659 2010-04-19  Richard Guenther  <rguenther@suse.de>
2660
2661         PR tree-optimization/43796
2662         * tree-vrp.c (adjust_range_with_scev): Lookup init and step
2663         from SCEV in the lattice.
2664         (vrp_visit_phi_node): Dump change.
2665
2666 2010-04-19  Richard Guenther  <rguenther@suse.de>
2667
2668         * configure.ac: Fix quoting around elf_getshstrndx ABI check.
2669         * configure: Re-generated.
2670
2671 2010-04-19  Richard Guenther  <rguenther@suse.de>
2672
2673         PR tree-optimization/43783
2674         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
2675         constant ARRAY_REF operands two and three if possible.
2676
2677 2010-04-19  Uros Bizjak  <ubizjak@gmail.com>
2678
2679         PR target/43766
2680         * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.
2681
2682 2010-04-19  Jie Zhang  <jie@codesourcery.com>
2683
2684         PR target/43662
2685         * reginfo.c (reinit_regs): Set caller_save_initialized_p to false.
2686
2687 2010-04-19  Ira Rosen  <irar@il.ibm.com>
2688
2689         PR tree-optimization/37027
2690         * tree-vectorizer.h (struct _loop_vec_info): Add new field reductions
2691         and macro to access it.
2692         (vectorizable_reduction): Add argument.
2693         (vect_get_slp_defs): Likewise.
2694         * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Collect reduction
2695         statements for possible use in SLP.
2696         (new_loop_vec_info): Initialize LOOP_VINFO_REDUCTIONS.
2697         (destroy_loop_vec_info): Free LOOP_VINFO_REDUCTIONS.
2698         (vect_create_epilog_for_reduction): Handle SLP. Modify documentation,
2699         add new argument.
2700         (vectorizable_reduction): Likewise.
2701         * tree-vect-stmts.c (vect_get_vec_defs): Update call to
2702         vect_get_slp_defs.
2703         (vectorizable_type_demotion, vectorizable_type_promotion,
2704         vectorizable_store): Likewise.
2705         (vect_analyze_stmt): Update call to vectorizable_reduction.
2706         (vect_transform_stmt): Likewise.
2707         * tree-vect-slp.c (vect_get_and_check_slp_defs): Handle reduction.
2708         (vect_build_slp_tree): Fix indentation. Check that there are no loads
2709         from different interleaving chains in same node.
2710         (vect_slp_rearrange_stmts): New function.
2711         (vect_supported_load_permutation_p): Allow load permutations for
2712         reductions. Call vect_slp_rearrange_stmts() to rearrange statements
2713         inside SLP nodes if necessary.
2714         (vect_analyze_slp_instance): Handle reductions.
2715         (vect_analyze_slp): Try to build SLP instances originating from groups
2716         of reductions.
2717         (vect_detect_hybrid_slp_stmts): Skip reduction statements.
2718         (vect_get_constant_vectors): Create initial vectors for reductions
2719         according to reduction code. Add new argument.
2720         (vect_get_slp_defs): Add new argument, pass it to
2721         vect_get_constant_vectors.
2722         (vect_schedule_slp_instance): Remove SLP tree root statements.
2723
2724 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2725
2726         * tree.h (ENUM_IS_SCOPED): Define.
2727         * dwarf2out.c (gen_enumeration_type_die): Add DW_AT_enum_class
2728         for ENUM_IS_SCOPED enums.
2729
2730 2010-04-18  Eric Botcazou  <ebotcazou@adacore.com>
2731
2732         * fold-const.c (fold_comparison): Use ssizetype.
2733         * gimple-fold.c (maybe_fold_offset_to_array_ref): Likewise.
2734         * ipa-prop.c (ipa_modify_call_arguments): Use sizetype.
2735         * tree-loop-distribution.c (build_size_arg_loc): Likewise.
2736         * tree-object-size.c (compute_object_sizes): Use size_type_node.
2737
2738         * tree.h (initialize_sizetypes): Remove parameter.
2739         (build_common_tree_nodes): Remove second parameter.
2740         * stor-layout.c (initialize_sizetypes): Remove parameter.
2741         Always create an unsigned type.
2742         (set_sizetype): Assert that the passed type is unsigned and simplify.
2743         * tree.c (build_common_tree_nodes): Remove second parameter.
2744         Adjust call to initialize_sizetypes.
2745         * c-decl.c (c_init_decl_processing): Remove second argument in call to
2746         build_common_tree_nodes.
2747
2748 2010-04-18  Matthias Klose  <doko@ubuntu.com>
2749
2750         * gcc.c (main): Search for liblto_plugin.so with mode R_OK.
2751
2752 2010-04-18  Ira Rosen  <irar@il.ibm.com>
2753
2754         PR tree-optimization/43771
2755         * tree-vect-slp.c (vect_supported_load_permutation_p): Check that
2756         load permutation doesn't have gaps.
2757
2758 2010-04-18  Jan Hubicka  <jh@suse.cz>
2759
2760         * i386.md (UNSPEC_SSE_PROLOGUE_SAVE_LOW): New.
2761         (sse_prologue_save_insn expander): Use new pattern.
2762         (sse_prologue_save_insn1): New pattern and splitter.
2763         (sse_prologue_save_insn): Update to deal also with 64bit aligned
2764         blocks.
2765         * i386.c (setup_incoming_varargs_64): Do not compute jump
2766         destination here.
2767         (ix86_gimplify_va_arg): Update alignment needed.
2768         (ix86_local_alignment): Do not align all local arrays to 128bit.
2769
2770 2010-04-17  Jan Hubicka  <jh@suse.cz>
2771
2772         * ipa-inline.c (cgraph_early_inlining): Handle flattening too.
2773
2774 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2775
2776         * arm.md (negdi2): Remove redundant code to force values into a
2777         register.
2778
2779 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2780
2781         * arm/bpabi.S: Add EABI alignment attributes to objects.
2782         * arm/bpabi-v6m.S: Likewise.
2783         * arm/crti.asm: Likewise.
2784         * arm/crtn.asm: Likewise.
2785         * arm/lib1funcs.asm: Likewise.
2786         * arm/libunwind.S: Likewise.
2787
2788 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2789
2790         * arm-protos.h (tune_params): New structure.
2791         * arm.c (current_tune): New variable.
2792         (arm_constant_limit): Delete.
2793         (struct processors): Add pointer to the tune parameters.
2794         (arm_slowmul_tune): New tuning option.
2795         (arm_fastmul_tune, arm_xscale_tune, arm_9e_tune): Likewise.
2796         (all_cores): Adjust to pick up the tuning model.
2797         (arm_constant_limit): New function.
2798         (arm_override_options): Select the appropriate tuning model.  Delete
2799         initialization of arm_const_limit.
2800         (arm_split_constant): Use the new constant-limit model.
2801         (arm_rtx_costs): Pick up the current tuning model.
2802         * arm.md (is_strongarm, is_xscale): Delete.
2803         * arm-generic.md (load_ldsched_x, load_ldsched): Test explicitly
2804         for Xscale variant architectures.
2805         (mult_ldsched_strongarm, mult_ldsched): Similarly for StrongARM.
2806
2807 2010-04-17  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2808
2809         * config/arm/arm.c (arm_gen_constant): Remove unused variable
2810         can_shift.
2811         (arm_rtx_costs_1): Remove unused variable extra_cost.
2812         (arm_unwind_emit_set): Use variable offset.
2813         (thumb1_output_casesi): Remove unused variable flags.
2814
2815 2010-04-16  Jeff Law  <law@redhat.com>
2816
2817         * ira-color.c (ira_reassign_pseudos): Collect and sort all the pseudos
2818         needing assignment rather than doing a two-phase assignment.  Remove
2819         unused variable 'm'.
2820
2821 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2822
2823         PR bootstrap/43767
2824         * alias.c (memrefs_conflict_p): Don't crash if CSELIB_VAL_PTR is NULL.
2825
2826 2010-04-16  Doug Kwan  <dougkwan@google.com>
2827
2828         * tree-ssa-reassoc.c (struct operand_entry): Add new field ID.
2829         (next_operand_entry_id): New static variable.
2830         (sort_by_operand_rank): Stabilize qsort comparator by using unique IDs.
2831         (add_to_ops_vec): Assigned unique ID to operand entry.
2832         (struct oecount_s): New field ID.
2833         (oecount_cmp): Stabilize qsort comparotor by using unique IDs.
2834         (undistribute_ops_list): Assign unique IDs to oecounts.
2835         (init_reassoc): reset next_operand_entry_id.
2836
2837 2010-04-16  Doug Kwan  <dougkwan@google.com>
2838
2839         * config/i386/i386.md (*jcc_bt<mode>): Fix build breakage by adding
2840         missing left parenthesis.
2841
2842 2010-04-16  Uros Bizjak  <ubizjak@gmail.com>
2843
2844         * config/i386/i386.md (*bt<mode>): Macroize insn from *btsi and
2845         *btdi_rex64 using SWI48 mode iterator.
2846         (*jcc_bt<mode>): Ditto from *jcc_btsi and *jcc_btdi_rex64.
2847         (*jcc_bt<mode>_mask): Ditto from *jcc_btsi_mask and
2848         *jcc_btdi_mask_rex64.
2849
2850 2010-04-16  Anatoly Sokolov  <aesok@post.ru>
2851
2852         * double-int.h (tree_to_double_int): Convert to macro.
2853         * double-int.c (tree_to_double_int): Remove.
2854
2855 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2856
2857         PR debug/43762
2858         * dwarf2out.c (add_bound_info): Always call loc_list_from_tree
2859         with want_address 2 and in case a single element list might be
2860         possible, call it again with want_address 0.
2861
2862 2010-04-12  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
2863
2864         * config/h8300/h8300.c (print_operand) : Modify case 'V' and
2865         case 'W' print operands for HI mode.
2866         * config/h8300/h8300.h (Y0, Y2) : New constraints.
2867         * config/h8300/h8300.md (bclrqi_msx, bclrhi_msx): New patterns
2868         (bsetqi_msx, bsethi_msx, bnotqi_msx, bnothi_msx): Likewise.
2869         * config/h8300/predicate.md (bit_register_indirect_operand): New.
2870
2871         * config/h8300/h8300.h (OK_FOR_U): Support 'U' constraint for H8300SX.
2872
2873         * config/h8300/h8300.md (movqi_h8sx, movhi_h8sx, movsi_h8sx,
2874         cmphi_h8300hs_znvc, cmpsi, addhi3_h8sx) : Emit instructions in
2875         #xx:3 and #xx:4 mode.
2876
2877         * config/h8300/h8300.md (inverted load with HImode dest): Add
2878         support for H8300SX.
2879
2880         * config/h8300/predicate.md (bit_operand): Allow immediate values that
2881         satisfy 'U' constraint.
2882
2883 2010-04-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2884
2885         * configure.ac: Check for elf_getshdrstrndx or elf_getshstrndx flavor.
2886         * configure: Regenerate.
2887         * config.in: Regenerate.
2888         * doc/install.texi (Prerequisites): Document that Solaris 2 libelf
2889         works.
2890
2891 2010-04-16  Richard Guenther  <rguenther@suse.de>
2892
2893         * tree.h (struct tree_decl_minimal): Move pt_uid ...
2894         (struct tree_decl_common): ... here.
2895         (DECL_PT_UID): Adjust.
2896         (SET_DECL_PT_UID): Likewise.
2897         (DECL_PT_UID_SET_P): Likewise.
2898
2899 2010-04-16  Richard Guenther  <rguenther@suse.de>
2900
2901         PR tree-optimization/43572
2902         * tree-ssa-alias.h (call_may_clobber_ref_p): Declare.
2903         * tree-ssa-alias.c (call_may_clobber_ref_p): Export.
2904         * tree-flow.h (is_call_clobbered): Remove.
2905         * tree-flow-inline.h (is_call_clobbered): Likewise.
2906         * tree-dfa.c (dump_variable): Do not dump call clobber state.
2907         * tree-nrv.c (dest_safe_for_nrv_p): Use the alias oracle.
2908         (execute_return_slot_opt): Adjust.
2909         * tree-tailcall.c (suitable_for_tail_opt_p): Remove
2910         check for call clobbered vars here.
2911         (find_tail_calls): Move tailcall verification to the
2912         proper place.
2913
2914 2010-04-16  Diego Novillo  <dnovillo@google.com>
2915
2916         * doc/invoke.texi: Explain how are unrecognized -Wno- warnings handled.
2917
2918 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
2919
2920         PR target/40603
2921         * config/arm/arm.md (cbranchqi4): New pattern.
2922         * config/arm/predicates.md (const0_operand,
2923         cbranchqi4_comparison_operator): New predicates.
2924
2925 2010-04-16  Richard Guenther  <rguenther@suse.de>
2926
2927         * gimple-pretty-print.c (dump_gimple_phi): Dump alias info.
2928         (dump_gimple_stmt): Likewise.
2929
2930 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
2931
2932         * recog.h (struct recog_data): New field is_operator.
2933         (struct insn_operand_data): New field is_operator.
2934         * recog.c (extract_insn): Set recog_data.is_operator.
2935         * genoutput.c (output_operand_data): Emit code to set the
2936         is_operator field.
2937         * reload.c (find_reloads): Use it rather than testing for an
2938         empty constraint string.
2939
2940         PR target/41514
2941         * config/arm/arm.md (cbranchsi4_insn): Renamed from "*cbranchsi4_insn".
2942         If the previous insn is a cbranchsi4_insn with the same arguments,
2943         omit the compare instruction.
2944
2945         * config/arm/arm.md (addsi3_cbranch): If destination is a high
2946         register, inputs must be low registers and we need a low register
2947         scratch.  Handle alternative 2 like alternative 3.
2948
2949 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2950
2951         * alias.c (memrefs_conflict_p): If x and y are the same VALUE,
2952         don't call get_addr on both.  If one expression is a VALUE and
2953         the other a REG, check VALUE's locs if the REG isn't among them.
2954
2955 2010-04-16  Christian Bruel  <christian.bruel@st.com>
2956
2957         * config/sh/sh.h (sh_frame_pointer_required): New function.
2958         * config/sh/sh.h (TARGET_FRAME_POINTER_REQUIRED): New macro.
2959         (flag_omit_frame_pointer) Set.
2960         (MASK_ACCUMULATE_OUTGOING_ARGS) Define and Set.
2961         (rounded_frame_size): Adjust size with outgoing_args_size.
2962         (sh_set_return_address): Must return from stack pointer.
2963         * gcc/config/sh/sh.h (CAN_DEBUG_WITHOUT_FP): Define.
2964         (SUBTARGET_FRAME_POINTER_REQUIRED): Define.
2965         (ACCUMULATE_OUTGOING_ARGS): Define.
2966         * doc/invoke.texi (maccumulate-outgoing-args): Document for SH.
2967         * gcc/config/sh/sh.opt: (maccumulate-outgoing-args): New option.
2968
2969 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
2970
2971         PR target/43471
2972         * config/sh/sh.c (sh_legitimize_reload_address): Use
2973         MAYBE_BASE_REGISTER_RTX_P instead of BASE_REGISTER_RTX_P.
2974         Remove a unneeded check for offset_base.
2975
2976 2010-04-15  H.J. Lu  <hongjiu.lu@intel.com>
2977
2978         * configure: Regenerated.
2979
2980 2010-04-15  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2981
2982         * config/s390/s390.c (s390_call_save_register_used): Switch back
2983         to HARD_REGNO_NREGS.
2984
2985 2010-04-15  Richard Guenther  <rguenther@suse.de>
2986
2987         * alias.c (alias_set_subset_of): Handle alias-set zero
2988         child properly.
2989
2990 2010-04-15  Mark Shinwell  <shinwell@codesourcery.com>
2991             Julian Brown  <julian@codesourcery.com>
2992
2993         * config/arm/thumb2.md (thumb2_movsi_insn): Split ldr and str
2994         alternatives according to use of high and low regs.
2995         * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
2996         * config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Use high regs when
2997         optimizing for size on Thumb-2.
2998
2999 2010-04-15  Thomas Schwinge  <tschwinge@gnu.org>
3000
3001         * config.gcc <i[34567]86-*-gnu*>: Handle softfp as for Linux.
3002
3003 2010-04-15  Richard Guenther  <rguenther@suse.de>
3004
3005         * tree-ssa-structalias.c (struct variable_info): Add
3006         is_fn_info flag.
3007         (new_var_info): Initialize it.
3008         (dump_constraints): Support printing last added constraints.
3009         (debug_constraints): Adjust.
3010         (dump_constraint_graph): Likewise.
3011         (make_heapvar_for): Check for NULL cfun.
3012         (get_function_part_constraint): New function.
3013         (get_fi_for_callee): Likewise.
3014         (find_func_aliases): Properly implement IPA PTA constraints.
3015         (process_ipa_clobber): New function.
3016         (find_func_clobbers): Likewise.
3017         (insert_into_field_list_sorted): Remove.
3018         (create_function_info_for): Properly allocate vars for IPA mode.
3019         Do not use insert_into_field_list_sorted.
3020         (create_variable_info_for): Properly generate constraints for
3021         global vars in IPA mode.
3022         (dump_solution_for_var): Always dump the solution.
3023         (set_uids_in_ptset): Initialize DECL_PT_UID if in ipa-mode.
3024         (find_what_var_points_to): Adjust.
3025         (pt_solution_set): Change.
3026         (pt_solution_ior_into): New function.
3027         (pt_solution_empty_p): Export.
3028         (pt_solution_includes_global): Adjust.
3029         (pt_solution_includes_1): Likewise.
3030         (pt_solutions_intersect_1): Likewise.
3031         (dump_sa_points_to_info): Check some invariants.
3032         (solve_constraints): Move constraint dumping ...
3033         (compute_points_to_sets): ... here.
3034         (ipa_pta_execute): ... and here.
3035         (compute_may_aliases): Do not re-compute points-to info
3036         locally if IPA info is available.
3037         (ipa_escaped_pt): New global var.
3038         (ipa_pta_execute): Properly implement IPA PTA.
3039         * tree-into-ssa.c (dump_decl_set): Support dumping
3040         decls not in referenced-vars.
3041         * tree-flow.h (struct gimple_df): Add ipa_pta flag.
3042         * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Adjust.
3043         (dump_points_to_solution): Likewise.
3044         * tree-dfa.c (dump_variable): Also dump DECL_PT_UID.
3045         * tree-inline.c (remap_ssa_name): Copy IPA points-to solution.
3046         (remap_gimple_stmt): Reset call clobber/use information if necessary.
3047         (copy_decl_to_var): Copy DECL_PT_UID.
3048         (copy_result_decl_to_var): Likewise.
3049         * tree.c (make_node_stat): Initialize DECL_PT_UID.
3050         (copy_node_stat): Copy it.
3051         * tree.h (DECL_PT_UID): New macro.
3052         (SET_DECL_PT_UID): Likewise.
3053         (DECL_PT_UID_SET_P): Likewise.
3054         (struct tree_decl_minimal): Add pt_uid member.
3055         * tree-ssa-alias.h (struct pt_solution): Add ipa_escaped flag.
3056         (pt_solution_empty_p): Declare.
3057         (pt_solution_set): Adjust.
3058         (ipa_escaped_pt): Declare.
3059         * cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
3060         * gimple-pretty-print.c (pp_points_to_solution): New function.
3061         (dump_gimple_call): Dump call clobber/use information.
3062         * tree-dump.c (dump_option_value_in): Add TDF_ALIAS entry.
3063         * tree-pass.h (TDF_ALIAS): New dump option.
3064         * tree-pretty-print.c (dump_decl_name): Dump DECL_PT_UID if asked to.
3065         * doc/invoke.texi (-fipa-pta): Update documentation.
3066
3067 2010-04-15  Richard Guenther  <rguenther@suse.de>
3068
3069         * Makefile.in (OBJS-common): Add gimple-fold.o.
3070         (gimple-fold.o): New rule.
3071         * tree.h (maybe_fold_offset_to_reference,
3072         maybe_fold_offset_to_address, maybe_fold_stmt_addition): Move
3073         prototypes ...
3074         * gimple.h: ... here.
3075         * tree-flow.h (fold_stmt, fold_stmt_inplace, get_symbol_constant_value,
3076         may_propagate_address_into_dereference): Move prototypes ...
3077         * gimple.h: ... here.
3078         * tree-ssa-ccp.c (get_symbol_constant_value,
3079         may_propagate_address_into_dereference, maybe_fold_offset_to_array_ref,
3080         maybe_fold_offset_to_component_ref, maybe_fold_offset_to_reference,
3081         maybe_fold_offset_to_address, maybe_fold_stmt_indirect,
3082         maybe_fold_stmt_addition, maybe_fold_reference, get_maxval_strlen,
3083         ccp_fold_builtin, fold_gimple_assign, fold_gimple_cond,
3084         fold_gimple_call, fold_stmt_1, fold_stmt, fold_stmt_inplace,
3085         gimplify_and_update_call_from_tree): Move ...
3086         * gimple-fold.c: ... here.  New file.
3087         (ccp_fold_builtin): Rename to ...
3088         (gimple_fold_builtin): ... this.
3089         * tree-ssa-ccp.c (execute_fold_all_builtins): Adjust.
3090
3091 2010-04-15  Richard Guenther  <rguenther@suse.de>
3092
3093         * fold-const.c (LOWPART, HIGHPART, BASE, encode, decode,
3094         fit_double_type, force_fit_type_double, add_double_with_sign,
3095         neg_double, mul_double_with_sign, lshift_double, rshift_double,
3096         lrotate_double, rrotate_double, div_and_round_double): Move ...
3097         * double-int.c: ... here.
3098         * tree.h (force_fit_type_double, fit_double_type, add_double_with_sign,
3099         add_double, neg_double, mul_double_with_sign, mul_double,
3100         lshift_double, rshift_double, lrotate_double, rrotate_double,
3101         div_and_round_double): Move prototypes ...
3102         * double-int.h: ... here.
3103
3104 2010-04-15  Bernd Schmidt  <bernds@codesourcery.com>
3105
3106         PR target/43742
3107         * config/sh/sh.md (doloop_end_split, dect): Undo previous patch.  Use
3108         matching constraints to ensure inputs match the output.
3109
3110 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
3111
3112         PR target/43742
3113         * config/sh/sh.md (doloop_end_split): Remove "+r" constraint
3114         in an input-only operand.
3115
3116 2010-04-15  Anatoly Sokolov  <aesok@post.ru>
3117
3118         * double-int.h (HOST_BITS_PER_DOUBLE_INT): Define.
3119         (double_int_not, double_int_lshift, double_int_rshift): Declare.
3120         (double_int_negative_p): Convert to static inline function.
3121         * double-int.c (double_int_lshift, double_int_lshift): New functions.
3122         (double_int_negative_p): Remove.
3123         * tree.h (lshift_double, rshift_double):
3124         * tree.c (build_low_bits_mask): Clean up, use double_int_* functions.
3125         * fold-const.c (fold_convert_const_int_from_real,
3126         fold_convert_const_int_from_fixed, div_if_zero_remainder): (Ditto.).
3127         (lshift_double): Change type of arith argument to bool.
3128         (rshift_double): Change type of arith argument to bool. Correct
3129         comment.
3130         * expmed.c (mask_rtx, lshift_value): (Ditto.).
3131
3132 2010-04-14  Bernd Schmidt  <bernds@codesourcery.com>
3133
3134         PR target/21803
3135         * ifcvt.c (cond_exec_process_if_block): Look for identical sequences
3136         at the start and end of the then/else blocks, and omit them from the
3137         conversion.
3138         * cfgcleanup.c (flow_find_cross_jump): No longer static.  Remove MODE
3139         argument; all callers changed.  Pass zero to old_insns_match_p instead.
3140         (flow_find_head_matching_sequence): New function.
3141         (old_insns_match_p): Check REG_EH_REGION notes for calls.
3142         * basic-block.h (flow_find_cross_jump,
3143         flow_find_head_matching_sequence): Declare functions.
3144
3145 2010-04-14  Jason Merrill  <jason@redhat.com>
3146
3147         PR c++/36625
3148         * c-common.c (attribute_takes_identifier_p): New fn.
3149         * c-common.h: Declare it.
3150
3151 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3152
3153         * config/i386/i386.md (*divmod<mode>4): Remove stray "&&" from
3154         splitter condition.
3155         (*udivmod<mode>4): Ditto.
3156
3157 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3158
3159         * config/i386/i386.md (maxmin_int): Rename code attribute from
3160         maxminiprefix and update all users.
3161         (maxmin_float): Ditto from maxminfprefix.
3162         (logic): Ditto from logicprefix.
3163         (absneg_mnemonic): Ditto from absnegprefix.
3164         * config/i386/mmx.md: Update all users of maxminiprefix,
3165         maxminfprefix and logicprefix for rename.
3166         * config/i386/sse.md: Ditto.
3167         * config/i386/sync.md (sync_<code><mode>): Update for
3168         logicprefix rename.
3169
3170 2010-04-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3171
3172         PR 42966
3173         * diagnostics.c (diagnostic_report_diagnostic): Mark specially
3174         warnings converted to errors.
3175
3176 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3177
3178         * config/alpha/alpha.c (alpha_adjust_cost): Remove set but not
3179         used insn_type variable.
3180         (function_value): Add ATTRIBUTE_UNUSED to dummy variable declaration
3181         to avoid set-but-not-used warning.
3182
3183 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3184
3185         * df-core.c (df_ref_debug): Change format string placeholder
3186         from 0x%x to %#x.
3187         * dwarf2asm.c (dw2_asm_output_data_raw,
3188         dw2_asm_output_data_uleb128_raw, dw2_asm_output_data_uleb128,
3189         dw2_asm_output_data_sleb128_raw, dw2_asm_output_data_sleb128): Ditto.
3190         * dwarf2out.c (output_cfi, output_cfi_directive,
3191         dwarf2out_do_cfi_startproc, output_loc_sequence_raw,
3192         output_cfa_loc_raw, output_die, output_ranges, output_file_names):
3193         Ditto.
3194         * genattrtab.c (write_test_expr, write_attr_valueq): Ditto.
3195         * print-rtl.c (print_rtx): Ditto.
3196
3197 2010-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
3198
3199         PR middle-end/42694
3200         * builtins.c (expand_builtin_pow_root): New function to expand pow
3201         calls with exponents 0.25, 0.50, 0.75, 1./3., and 1./6. into a
3202         series of sqrt and cbrt calls under -ffast-math.
3203         (expand_builtin_pow): Call it.
3204
3205 2010-04-14  Michael Matz  <matz@suse.de>
3206
3207         PR tree-optimization/42963
3208         * tree-cfg.c (touched_switch_bbs): New static variable.
3209         (group_case_labels_stmt): New function broken out from ...
3210         (group_case_labels): ... here, use the above.
3211         (start_recording_case_labels): Allocate touched_switch_bbs.
3212         (end_recording_case_labels): Deallocate it, call
3213         group_case_labels_stmt.
3214         (gimple_redirect_edge_and_branch): Remember index of affected BB.
3215
3216 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3217
3218         * config/i386/i386.md (*popcountsi2_cmp_zext): Remove mode attribute
3219         from insn template.
3220
3221 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3222
3223         * config/i386/i386.md (*ashlqi3_1_slp): New insn pattern.
3224
3225 2010-04-13  Jan Hubicka  <jh@suse.cz>
3226
3227         * ipa-inline.c (cgraph_mark_inline_edge): Avoid double accounting
3228         of optimized out static functions.
3229         (cgraph_edge_badness): Add DUMP parameter and dump reasons for the
3230         cost computation.  Also sanity check for overflows.
3231         (update_caller_keys): Update cgraph_edge_badness call; properly
3232         update fibheap and sanity check that it is up to date.
3233         (add_new_edges_to_heap): Update cgraph_edge_badness.
3234         (cgraph_decide_inlining_of_small_function): Likewise;
3235         add sanity checking that badness in heap is up to date;
3236         improve dumping of reason; Update badness of calls to the
3237         offline copy of function currently inlined; dump badness
3238         of functions not inlined because of unit growth limits.
3239
3240 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
3241
3242         PR middle-end/32628
3243         * c-common.c (pointer_int_sum): Disregard overflow that occured only
3244         because of sign-extension change when converting to sizetype here...
3245         * fold-const.c (fold_convert_const_int_from_int): ...and not here.
3246
3247         * fold-const.c (fold_binary_op_with_conditional_arg): Do not restrict
3248         the folding to constants.  Remove redundant final conversion.
3249         (fold_binary) <associate>: Do not associate if the re-association of
3250         constants alone overflows.
3251         (fold_binary) <FLOOR_MOD_EXPR>: Move transformation into BIT_AND_EXPR
3252         to the end of the list.
3253         (multiple_of_p) <COND_EXPR>: New case.
3254
3255 2010-04-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3256
3257         * opt-functions.awk (opt_sanitized_name): New.
3258         (opt_enum): New.
3259         * optc-gen.awk: Use it
3260         * opth-gen.awk: Use it.
3261
3262 2010-04-13  Martin Jambor  <mjambor@suse.cz>
3263
3264         * tree-sra.c (replace_uses_with_default_def_ssa_name): New function.
3265         (sra_modify_assign): Delete stmts loading dead data even if racc has no
3266         children.  Call replace_uses_with_default_def_ssa_name to handle
3267         SSA_NAES on lhs.
3268
3269 2010-04-13  Michael Matz  <matz@suse.de>
3270
3271         PR middle-end/43730
3272         * builtins.c (expand_builtin_interclass_mathfn): Also create
3273         a register if the predicate doesn't match.
3274
3275 2010-04-13  Diego Novillo  <dnovillo@google.com>
3276
3277         * Makefile.in (c-pch.o, ggc-common.o): Depend on timevar.h.
3278         * c-pch.c: Include timevar.h.
3279         (c_common_write_pch): Use TV_PCH_SAVE and TV_PCH_CPP_SAVE timers.
3280         (c_common_read_pch): Use TV_PCH_RESTORE and TV_PCH_CPP_RESTORE timers.
3281         * ggc-common.c: Include timevar.h.
3282         (gt_pch_save): Use TV_PCH_PTR_REALLOC and TV_PCH_PTR_SORT timers.
3283         * timevar.def (TV_PCH_SAVE): Define.
3284         (TV_PCH_CPP_SAVE): Define.
3285         (TV_PCH_PTR_REALLOC): Define.
3286         (TV_PCH_PTR_SORT): Define.
3287         (TV_PCH_RESTORE): Define.
3288         (TV_PCH_CPP_RESTORE): Define.
3289
3290 2010-04-13  Michael Matz  <matz@suse.de>
3291
3292         * tree-ssa-reassoc.c (repropagate_negates): Merge negates also
3293         into MINUS_EXPRs.
3294         (can_reassociate_p): New function.
3295         (break_up_subtract_bb, reassociate_bb): Use it.
3296
3297 2010-04-13  Richard Guenther  <rguenther@suse.de>
3298
3299         PR bootstrap/43737
3300         * builtins.c (c_readstr): Fix assert.
3301
3302 2010-04-13  Uros Bizjak  <ubizjak@gmail.com>
3303
3304         * config/i386/i386.md (extendsidi2 splitter): Also check for DX_REG
3305         when generating cltd insn.
3306
3307         (*ashl<mode>3_1): Remove special handling for register operand 2.
3308         (*ashlsi3_1_zext): Ditto.
3309         (*ashlhi3_1): Ditto.
3310         (*ashlhi3_1_lea): Ditto.
3311         (*ashlqi3_1): Ditto.
3312         (*ashlqi3_1_lea): Ditto.
3313         (*<shiftrt_insn><mode>3_1): Ditto.
3314         (*<shiftrt_insn>si3_1_zext): Ditto.
3315         (*<shiftrt_insn>qi3_1_slp): Ditto.
3316         (*<rotate_insn><mode>3_1): Ditto.
3317         (*<rotate_insn>si3_1_zext): Ditto.
3318         (*<rotate_insn>qi3_1_slp): Ditto.
3319
3320 2010-04-13  Richard Guenther  <rguenther@suse.de>
3321
3322         * tree-ssa-structalias.c (callused_id): Remove.
3323         (call_stmt_vars): New.
3324         (get_call_vi): Likewise.
3325         (lookup_call_use_vi): Likewise.
3326         (lookup_call_clobber_vi): Likewise.
3327         (get_call_use_vi): Likewise.
3328         (get_call_clobber_vi): Likewise.
3329         (make_transitive_closure_constraints): Likewise.
3330         (handle_const_call): Adjust to do per-call call-used handling.
3331         (handle_pure_call): Likewise.
3332         (find_what_var_points_to): Remove general callused handling.
3333         (init_base_vars): Likewise.
3334         (init_alias_vars): Initialize call_stmt_vars.
3335         (compute_points_to_sets): Process call-used and call-clobbered
3336         vars for call statements.
3337         (delete_points_to_sets): Free call_stmt_vars.
3338
3339 2010-04-13  Richard Guenther  <rguenther@suse.de>
3340
3341         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
3342         Only add RW dependence for dependence distance zero.
3343         Adjust maximal vectorization factor according to dependences.
3344         Move alignment handling ...
3345         (vect_find_same_alignment_drs): ... here.  New function.
3346         (vect_analyze_data_ref_dependences): Adjust.
3347         (vect_analyze_data_refs_alignment): Call vect_find_same_alignment_drs.
3348         (vect_analyze_data_refs): Adjust minimal vectorization factor
3349         according to data references.
3350         * tree-vect-loop.c (vect_analyze_loop): Analyze data-ref
3351         dependences before determining the vectorization factor.
3352         Analyze alignment after determining the vectorization factor.
3353         * tree-vect-slp.c ((vect_slp_analyze_bb): Analyze data-ref
3354         dependences before alignment.
3355         * tree-vectorizer.h (vect_analyze_data_ref_dependences):
3356         Adjust prototype.
3357         (vect_analyze_data_refs): Likewise.
3358         (MAX_VECTORIZATION_FACTOR): New define.
3359
3360 2010-04-13  Duncan Sands  <baldrick@free.fr>
3361
3362         * except.h (lang_eh_type_covers): Remove.
3363         * except.c (lang_eh_type_covers): Likewise.
3364
3365 2010-04-13  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3366             Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3367
3368         * gcc/config/s390/s390.md: Replace TARGET_64BIT with TARGET_ZARCH.
3369         * gcc/config/s390/s390.c: Replace UNTIS_PER_WORD with
3370         UNITS_PER_LONG where it is ABI relevant.
3371         (s390_return_addr_rtx): Likewise.
3372         (s390_back_chain_rtx): Likewise.
3373         (s390_frame_area): Likewise.
3374         (s390_frame_info): Likewise.
3375         (s390_initial_elimination_offset): Likewise.
3376         (save_gprs): Likewise.
3377         (s390_emit_prologue): Likewise.
3378         (s390_emit_epilogue): Likewise.
3379         (s390_function_arg_advance): Likewise.
3380         (s390_function_arg): Likewise.
3381         (s390_va_start): Likewise.
3382         (s390_gimplify_va_arg): Likewise.
3383         (s390_function_profiler): Likewise.
3384         (s390_optimize_prologue): Likewise.
3385         (s390_rtx_costs): Likewise.
3386         (s390_secondary_reload): Likewise.
3387         (s390_promote_function_mode): Likewise.
3388         (s390_hard_regno_mode_ok): Replace TARGET_64BIT with TARGET_ZARCH.
3389         (s390_scalar_mode_supported_p): Disallow TImode if no 64 bit
3390         registers available.
3391         (s390_unwind_word_mode): New function.
3392         (s390_function_value): Split 64 bit values into register pair if
3393         used as return value.
3394         (s390_call_saved_register_used): Don't use HARD_REGNO_NREGS for
3395         function call parameters.  Handle parallels.
3396         (TARGET_SCALAR_MODE_SUPPORTED_P): New macro.
3397         (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
3398         (DWARF_CIE_DATA_ALIGNMENT): New macro.
3399         (s390_expand_setmem): Remove unused variable src_addr.
3400         * gcc/longlong.h: Make smul_ppmm and sdiv_qrnnd inline asms to
3401         deal with 64 bit registers.
3402         * gcc/config/s390/s390.h: Define __zarch__ predefined macro.
3403         Replace UNITS_PER_WORD with UNITS_PER_LONG where it is ABI relevant.
3404         (UNITS_PER_LONG): New macro.
3405         * libjava/include/s390-signal.h: Define extended ucontext
3406         structure containing the upper halfs of the 64 bit registers.
3407
3408 2010-04-13  Simon Baldwin  <simonb@google.com>
3409
3410         * cfgexpand.c (gimple_expand_cfg): Clarify warning message text.
3411
3412 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
3413
3414         * gimple.c (walk_gimple_op) <GIMPLE_ASSIGN>: Do not request a pure
3415         rvalue on the RHS if the LHS is of a non-renamable type.
3416         * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Fold result.
3417
3418 2010-04-13  Matthias Klose  <doko@ubuntu.com>
3419
3420         * gcc.c (cc1_options): Handle -iplugindir before processing
3421         the cc1 spec. Only add -iplugindir once.
3422         (cpp_unique_options): Add -iplugindir option if -fplugin* options
3423         found.
3424         * common.opt (iplugindir): Remove `Separate' property, initialize.
3425         * plugin.c (default_plugin_dir_name): Error with missing -iplugindir
3426         option.
3427         * Makefile.in (check-%, check-parallel-%): Create plugin dir.
3428         (distclean): Remove plugin dir.
3429         * doc/invoke.texi: Document -iplugindir.
3430
3431 2010-04-13  Basile Starynkevitch  <basile@starynkevitch.net>
3432
3433         * doc/plugins.texi (Loading Plugins): Document short