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1 2010-05-12  Jakub Jelinek  <jakub@redhat.com>
2
3         PR middle-end/44085
4         * gimplify.c (enum omp_region_type): Add ORT_UNTIED_TASK,
5         change value of ORT_TASK.
6         (new_omp_context): Handle ORT_UNTIED_TASK like ORT_TASK.
7         (omp_notice_threadprivate_variable): New function.
8         (omp_notice_variable): Call it for threadprivate variables.
9         If enclosing ctx is a task, print enclosing task rather than
10         enclosing parallel.  Handle ORT_UNTIED_TASK like ORT_TASK.
11         (gimplify_omp_task): Pass ORT_UNTIED_TASK instead of ORT_TASK
12         if task has untied clause.
13
14         PR debug/42278
15         * dwarf2out.c (base_type_die): Don't add name attribute here.
16         (modified_type_die): Instead of sizetype use
17         its underlying original type.  If a DW_TAG_base_type doesn't
18         have name added, add __unknown__.
19         (dwarf2out_imported_module_or_decl_1): Don't call base_type_die,
20         always call force_type_die instead.
21
22 2010-05-12  Maxim Kuvyrkov  <maxim@codesourcery.com>
23
24         * targhooks.c (default_stack_protect_guard): Avoid sharing RTL
25         for __stack_chk_guard.
26
27 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
28
29         * c-opts.c (c_common_parse_file): If start_end_main_source_file,
30         don't call start_source_file debug hook here...
31         (finish_options): ... but here, after outputting predefined and
32         command line defines and undefs.
33
34         PR middle-end/44071
35         * cfglayout.c (fixup_reorder_chain): Allow asm goto to have
36         no fallthru edge.
37         * cfgcleanup.c (try_optimize_cfg): When in cfglayout mode
38         optimizing away empty bb with no successors, move over its
39         footer chain to fallthru predecessor.
40         * cfgrtl.c (patch_jump_insn): Update also REG_LABEL_OPERAND.
41         (rtl_split_edge): For asm goto call patch_jump_insn even if
42         splitting fallthru edge.
43
44         PR c++/44059
45         * config/elfos.h (ASM_DECLARE_OBJECT_NAME): Use qnu_unique_object
46         even for DECL_ONE_ONLY DECL_ARTIFICIAL !TREE_READONLY decls.
47         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Likewise.
48         * dwarf2asm.c (dw2_output_indirect_constant_1): Set TREE_READONLY
49         on DW.ref.* decls.
50
51         PR c++/44062
52         * c-parser.c (c_parser_expression): Mark LHS of a comma
53         expression as read if it is a decl, handled component or
54         COMPOUND_EXPR with that on the RHS.
55         * c-typeck.c (c_process_expr_stmt): Mark RHS of COMPOUND_EXPR
56         if it is a decl or handled component.
57
58 2010-05-11  Jan Hubicka  <jh@suse.cz>
59
60         * lto-symtab.c (lto_symtab_free): New function.
61         * lto-streamer.h (lto_symtab_free): Declare.
62
63 2010-05-11  Jan Hubicka  <jh@suse.cz>
64
65         * lto-cgraph.c (reachable_from_other_partition_p): Export; do not assume
66         that if function is needed it is reachable.
67         (lto_output_node): See if it the function is reachable or referenced.
68         (output_cgraph): Update call of lto_output_node.
69         * lto-streamer.h (reachable_from_other_partition_p): Declare.
70
71 2010-05-11  Jan Hubicka  <jh@suse.cz>
72
73         * crtstuff.c (__JCR_LIST__, __DTOR_END__, __JCR_END__, __FRAME_END__):
74         Mark as used.
75
76 2010-05-11  Jan Hubicka  <jh@suse.cz>
77
78         PR tree-optimize/44063
79         * ipa-inline.c (cgraph_edge_badness): Move always inlines to top of queue.
80         (cgraph_decide_inlining_of_small_function): Skip check when disrgarding
81         limits.
82         (estimate_function_body_sizes): Compute sizes even when disregarding.
83
84 2010-05-11  Kai Tietz  <kai.tietz@onevision.com>
85
86         * collect2.c (maybe_lto_object_file): Add x64-coff magic and check.
87
88 2010-05-11  Jan Hubicka  <jh@suse.cz>
89
90         * lto-cgraph.c (output_cgraph): Remove loop adding all varpool nodes
91         into every boundary.
92
93 2010-05-11  Jan Hubicka  <jh@suse.cz>
94
95         * matrix-reorg.c (matrix_reorg): Rebuild edges.
96
97 2010-05-11  Jan Hubicka  <jh@suse.cz>
98
99         * lto-streamer.c (lto_streamer_cache_add_to_node_array,
100         lto_streamer_cache_delete): Put nodes into heap.
101         * lto-streamer.h (struct lto_streamer_cache_d): Nodes vector is in
102         heap.
103
104 2010-05-11  Jan Hubicka  <jh@suse.cz>
105
106         * cgraphbuild.c (cgraph_rebuild_references): New.
107         * cgraph.c (cgraph_mark_reachable_node): Accept references to optimized
108         out extern inlines.
109         * cgraph.h (cgraph_rebuild_references): Declare.
110         * tree-inline.c (tree_function_versioning): Use it.
111         * ipa-struct-reorg.c (do_reorg_for_func): Likewise.
112
113 2010-05-11  Jan Hubicka  <jh@suse.cz>
114
115         * cgraph.c: Include ipa-utils.h
116         (cgraph_create_virtual_clone): Update references.
117         * Makefile.in (cgraph.o): Add dependency at ipa-utils.h
118
119 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
120
121         * tree-ssa-loop-prefetch.c (prune_ref_by_group_reuse): Reset
122         prefetch_before to PREFETCH_ALL if to accesses "meet" beyond
123         cache size.
124
125 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
126
127         * tree-ssa-loop-prefetch.c: Add debug for dropped prefetches.
128
129 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
130
131         * gcc.c (execute): For -### don't quote arguments that
132         contain just alphanumerics and _/-. characters.
133         * doc/invoke.texi: Document that change for -###.
134
135         PR debug/44023
136         * df-problems.c (struct dead_debug): Add to_rescan field.
137         (dead_debug_init): Clear to_rescan field.
138         (dead_debug_finish): Rescan all debug insns in to_rescan
139         bitmap and free the bitmap.
140         (dead_debug_insert_before): Instead of rescanning debug insns
141         immediately queue their rescanning until dead_debug_finish.
142         (df_note_bb_compute): After dead_debug_add do continue instead
143         of break.
144
145 2010-05-10  Jakub Jelinek  <jakub@redhat.com>
146
147         PR debug/44028
148         * haifa-sched.c (schedule_insn): When clearing INSN_VAR_LOCATION_LOC,
149         clear also INSN_REG_USE_LIST.
150
151 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
152
153         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Undef.
154
155 2010-05-10  Jan Hubicka  <jh@suse.cz>
156
157         * lto-stramer-out.c (produce_asm_for_decls): Correct accidentally commited change.
158
159 2010-05-10  Jan Hubicka  <jh@suse.cz>
160
161         * passes.c (ipa_write_summaries_1, ipa_write_optimization_summaries): Allocate
162         encoders.
163         * lto-section-out.c (lto_new_out_decl_state): Do not allocate it here.
164         * lto-streamer.c (lto_streamer_cache_insert_1): Use alloc pool.
165         (lto_streamer_cache_create): Init alloc pool.
166         (lto_streamer_cache_delete): Free alloc pool.
167         * lto-streamer.h: Include alloc pool.
168         (lto_streamer_cache_d): Use alloc pool.
169         * lto-stramer-out.c (produce_asm_for_decls): Delete fn_out_states.
170
171 2010-05-10  Jan Hubicka  <jh@suse.cz>
172
173         * Makefile.in (cgraphbuild.o): Add dependency on except.h.
174         * cgraphbuild.c: Include except.h
175         (record_type_list, record_eh_tables): New function.
176         (build_cgraph_edges, rebuild_cgraph_edges): Use it.
177
178 2010-05-10  Jan Hubicka  <jh@suse.cz>
179
180         * crtstuff.c (force_to_data, __do_global_dtors_aux_fini_array_entry,
181         __frame_dummy_init_array_entry, force_to_data): Attribute as used
182         rather than unused.
183
184 2010-05-10  Michael Matz  <matz@suse.de>
185
186         * tree-ssa-reassoc.c (undistribute_ops_list): Use create_tmp_reg.
187         (can_reassociate_p): Use FLOAT_TYPE_P.
188         * tree-vectorizer.h (vect_is_simple_reduction): Rename to ...
189         (vect_force_simple_reduction): ... this.
190         * tree-parloops.c (gather_scalar_reductions): Use
191         vect_force_simple_reduction.
192         * tree-vect-loop.c (vect_is_simple_reduction_1): Rename from
193         vect_is_simple_reduction, add modify argument, if true rewrite
194         "a-b" into "a+(-b)".
195         (vect_is_simple_reduction, vect_force_simple_reduction): New
196         functions.
197         (vect_analyze_scalar_cycles_1): Use vect_force_simple_reduction.
198
199 2010-05-10  H.J. Lu  <hongjiu.lu@intel.com>
200             Vladimir Makarov  <vmakarov@redhat.com>
201
202         PR rtl-optimization/44012
203         * ira-build.c (remove_unnecessary_allocnos): Nullify
204         regno_allocno_map of the removed allocno.
205
206 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
207
208         * configure.ac (gcc_cv_ld_eh_gc_sections): Redirect objdump errors
209         to /dev/null.
210         * configure: Regenerate.
211
212 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
213
214         * config/sol2.c (solaris_assemble_visibility): Declare decl, vis
215         unused.
216         Define visibility_types, name, type inside HAVE_GAS_HIDDEN.
217         * configure.ac (gcc_cv_ld_hidden): Explain stages of visibility
218         support in Sun ld.
219         * configure: Regenerate.
220
221 2010-05-10  Richard Guenther  <rguenther@suse.de>
222
223         * lto-symtab.c (lto_symtab_entry_marked_p): Make entry
224         marked if the entry identifier is marked.
225
226 2010-05-10  Richard Guenther  <rguenther@suse.de>
227
228         * c-common.c (struct c_common_attributes): Add fnspec attribute.
229         (handle_fnspec_attribute): New function.
230         * gimple.h (gimple_call_return_flags): Declare.
231         (gimple_call_arg_flags): Likewise.
232         * gimple.c (gimple_call_arg_flags): New function.
233         (gimple_call_return_flags): Likewise.
234         * tree.h (EAF_DIRECT, EAF_NOCLOBBER, EAF_NOESCAPE, EAF_UNUSED):
235         New argument flags.
236         (ERF_RETURN_ARG_MASK, ERF_RETURNS_ARG, ERF_NOALIAS): New function
237         return value flags.
238         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Skip unused args.
239         * tree-ssa-structalias.c (make_constraint_from_heapvar): Split
240         main work to ...
241         (make_heapvar_for): ... this new function.
242         (handle_rhs_call): Handle fnspec attribute argument specifiers.
243         (handle_lhs_call): Likewise.
244         (find_func_aliases): Adjust.
245
246 2010-05-10  Richard Guenther  <rguenther@suse.de>
247
248         PR tree-optimization/44050
249         * tree-inline.c (tree_function_versioning): Clone the ipa-pta flag.
250
251 2010-05-10  Wei Guozhi  <carrot@google.com>
252
253         PR target/42879
254         * config/arm/thumb2.md (thumb2_tlobits_cbranch): New insn pattern.
255
256 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
257
258         PR c/10676
259         * c-typeck.c (lookup_field): Take a type directly.  Update
260         recursive calls.
261         (build_component_ref): Update call to lookup_field.
262         (set_init_label): Use lookup_field to find initialized field.
263         Handle returned list of fields like a sequence of designators.
264
265 2010-05-09  Richard Guenther  <rguenther@suse.de>
266
267         PR middle-end/44024
268         * fold-const.c (tree_single_nonzero_warnv_p): Properly
269         handle &FUNCTION_DECL.
270
271 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
272
273         PR c/4784
274         * c-decl.c (detect_field_duplicates_hash): New.  Handle anonymous
275         structures and unions recursively.
276         (detect_field_duplicates): Move duplicate detection with a hash to
277         detect_field_duplicates_hash.  Always use a hash if anonymous
278         structures or unions are present.
279         * doc/extend.texi (Unnamed Fields): Document that duplicate fields
280         give errors.
281
282 2010-05-09  H.J. Lu  <hongjiu.lu@intel.com>
283
284         PR target/44046
285         * config/i386/driver-i386.c (host_detect_local_cpu): Properly
286         detect Atom, Core 2 and Core i7.
287
288 2010-05-09  Richard Guenther  <rguenther@suse.de>
289
290         * gcc.c (store_arg): Handle temporary file deletion for
291         joined arguments.
292
293 2010-05-09  Richard Guenther  <rguenther@suse.de>
294
295         PR middle-end/44043
296         * ipa-inline.c (estimate_function_body_sizes): Return after
297         disregarding inline limits.
298
299 2010-05-09  Richard Guenther  <rguenther@suse.de>
300
301         * gcc.c (store_arg): Revert last change.
302
303 2010-05-08  Sandra Loosemore  <sandra@codesourcery.com>
304
305         PR middle-end/28685
306         * tree-ssa-reassoc.c (eliminate_redundant_comparison): New function.
307         (optimize_ops_list): Call it.
308
309 2010-05-08  Richard Guenther  <rguenther@suse.de>
310
311         PR tree-optimization/44030
312         * tree-ssa-pre.c (eliminate): Copy NECESSARY flag.  Set
313         NECESSARY flag if we propagate from a inserted expression.
314
315 2010-05-08  Eric Botcazou  <ebotcazou@adacore.com>
316
317         * gimple.c (gimple_types_compatible_p) <ARRAY_TYPE>: Treat bounds of
318         domain types as equal if they are both PLACEHOLDER_EXPRs.
319
320 2010-05-08  Richard Guenther  <rguenther@suse.de>
321
322         * lto-wrapper.c (run_gcc): Remove linker output from
323         command line for LTRANS invocation.
324
325 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
326
327         * config.gcc (i[34567]86-*-darwin*, x86_64-*-darwin*): Add
328         lto-macho as lto_binary_reader.
329         * target.h (struct gcc_target): New hooks lto_start and lto_end.
330         * target-def.h (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Define.
331         * cgraphunit.c (ipa_passes): Wrap LTO assembler output generation
332         in lto_start and lto_end calls.
333         (is_elf_or_coff): Rename to maybe_lto_object_file.  Add Mach-O
334         magic numbers.
335         (scan_prog_file): Update is_elf_or_coff call.
336         * doc/tm.text (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Document.
337
338         * collect2.c (main): Fix enum comparison.
339
340         * config/darwin-protos.h (darwin_asm_lto_start, darwin_asm_lto_end):
341         Add prototypes.
342         * darwin9.h (LINK_COMMAND_SPEC): Pass -flto and -fwhopr to the linker.
343         * darwin.h (LINK_COMMAND_SPEC): Likewise.  Define TARGET_ASM_LTO_START
344         and TARGET_ASM_LTO_END.
345         * darwin.c: Include obstack.h and lto-streamer.h.
346         (lto_section_names_offset, lto_section_names_obstack,
347         lto_asm_out_file, lto_asm_out_name, saved_asm_out_file): New static
348         global variables.
349         (LTO_SEGMENT_NAME, LTO_NAMES_SECTION): New defines.
350         (darwin_asm_lto_start): New function.  Redirect output to asm_out_file
351         to a temporary file.
352         (darwin_asm_lto_end): New function.  Restore asm_out_file.
353         (darwin_asm_named_section): For LTO sections, replace the name with
354         the offset of the section name in a string table, and build this
355         table.
356         (darwin_file_start): Initialize global vars for LTO support.
357         (darwin_file_end): If output to asm_out_file was redirected, append it
358         to the proper asm_out_file here.  Add the section names section.
359
360 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
361
362         * c-pragma.c (pending_weak_d, pending_weak): New.
363         (pending_weaks): Change the type to VEC((pending_weak,gc) *.
364         (maybe_apply_pragma_weak, maybe_apply_pending_pragma_weaks,
365         handle_pragma_weak): Update the uses of pending_weaks.
366
367 2010-05-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
368
369         PR documentation/44016
370         * doc/standards.texi (Standards): Link to unversioned
371         cxx0x_status.html page.
372
373 2010-05-07  Iain Sandoe <iains@gcc.gnu.org>
374
375         PR target/43708
376         * config/darwin-c.c (darwin_pragma_unused): Set DECL_READ_P
377         in addition to TREE_USED, to avoid "set but unused" warnings.
378
379 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
380
381         * tree-ssa-loop-prefetch.c (TRIP_COUNT_TO_AHEAD_RATIO): New.
382         (is_loop_prefetching_profitable): Do not insert prefetches
383         when the trip count is not at least TRIP_COUNT_TO_AHEAD_RATIO
384         times the prefetch ahead distance.
385
386 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
387
388         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable):
389         Account for loop unrolling in the insn-to-prefetch ratio heuristic.
390         (loop_prefetch_arrays): Pass to is_loop_prefetching_profitable
391         the unroll_factor.
392
393 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
394
395         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable): Dump
396         a diagnostic info when the insn-to-mem ratio is too small.
397
398 2010-05-07  Richard Guenther <rguenther@suse.de>
399
400         * gcc.c (LINK_COMMAND_SPEC): Provide a resolution file to
401         the linker plugin.
402         (store_arg): Queue temp_filename for deletion instead of
403         the whole argument.
404
405 2010-05-07  Richard Guenther  <rguenther@suse.de>
406
407         * lto-wrapper.c (DUMPBASE_SUFFIX): Define.
408         (run_gcc): Handle LTRANS phase invocation.
409         * collect2.c (maybe_run_lto_and_relink): Do not set WPA_SAVE_LTRANS.
410
411 2010-05-07  Jakub Jelinek  <jakub@redhat.com>
412
413         * tree.h (TREE_ADDRESSABLE): Adjust comment to say that
414         this is also meaningful on PARM_DECLs and RESULT_DECLs.
415
416 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
417
418         * config/mips/iris6.h (LINK_SPEC): Don't pass -init, -fini with -r.
419
420 2010-05-07  Richard Guenther  <rguenther@suse.de>
421
422         PR tree-optimization/44020
423         * tree-ssa-pre.c (execute_pre): Do not remove dead inserted
424         code when PRE is not yet initialized.
425
426 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
427
428         * config/mips/dbxmdebug.h: Remove.
429         * config.gcc (mips-sgi-irix6.5*): Remove mips/dbxmdebug.h.
430
431 2010-05-07  Shujing Zhao  <pearly.zhao@oracle.com>
432
433         * c-typeck.c (build_binary_op): Warn ordered comparison of pointer
434         with null pointer and also warn about ordered comparison of zero with
435         pointer if -Wextra.
436
437 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
438
439         * graphite-blocking.c
440         (pbb_strip_mine_profitable_p): Replace Value with mpz_t.
441         * graphite-clast-to-gimple.c
442         (clast_to_gcc_expression): Same.
443         (precision_for_value): Same.
444         (precision_for_interval): Same.
445         (gcc_type_for_interval): Same.
446         (graphite_create_new_guard): Same.
447         (compute_bounds_for_level): Same.
448         (graphite_create_new_loop_guard): Same.
449         * graphite-interchange.c
450         (build_linearized_memory_access): Same.
451         (pdr_stride_in_loop): Same.
452         (memory_strides_in_loop_1): Same.
453         (memory_strides_in_loop): Same.
454         (extend_scattering): Same.
455         (psct_scattering_dim_for_loop_depth): Same.
456         (pbb_number_of_iterations): Same.
457         * graphite-poly.h
458         (debug_iteration_domains): Same.
459         * graphite-ppl.c
460         (new_Cloog_Domain_from_ppl_Pointset_Powerset): Same.
461         (ppl_set_inhomogeneous_gmp): Same.
462         (ppl_strip_loop): Same.
463         (ppl_lexico_compare_linear_expressions): Same.
464         (ppl_read_polyhedron_matrix): Same.
465         (ppl_max_for_le_pointset): Same.
466         * graphite-ppl.h
467         (ppl_read_polyhedron_matrix): Same.
468         (tree_int_to_gmp): Same.
469         (gmp_cst_to_tree): Same.
470         (ppl_set_inhomogeneous): Same.
471         (ppl_set_inhomogeneous_tree): Same.
472         (ppl_set_coef): Same.
473         (ppl_set_coef_tree): Same.
474         * graphite-sese-to-poly.c
475         (build_pbb_scattering_polyhedrons): Same.
476         (build_scop_scattering): Same.
477         (scan_tree_for_params_right_scev): Same.
478         (scan_tree_for_params): Same.
479         (find_params_in_bb): Same.
480         (find_scop_parameters): Same.
481         (add_upper_bounds_from_estimated_nit): Same.
482         (build_loop_iteration_domains): Same.
483         (add_condition_to_domain): Same.
484         (pdr_add_memory_accesses): Same.
485
486 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
487
488         * graphite-blocking.c (pbb_strip_mine_profitable_p): Resolve
489         CLooG's value_* macros to their respective mpz_* counterparts.
490         * graphite-clast-to-gimple.c (clast_to_gcc_expression): Same.
491         (graphite_create_new_loop_guard): Same.
492         * graphite-interchange.c (build_linearized_memory_access): Same.
493         (pdr_stride_in_loop): Same.
494         (memory_strides_in_loop_1): Same.
495         (1st_interchange_profitable_p): Same.
496         * graphite-poly.c (extend_scattering): Same.
497         (psct_scattering_dim_for_loop_depth): Same.
498         (pbb_number_of_iterations): Same.
499         (pbb_number_of_iterations_at_time): Same.
500         * graphite-poly.h (new_1st_loop): Same.
501         * graphite-ppl.c (cloog_matrix_to_ppl_constraint): Same.
502         (oppose_constraint): Same.
503         (insert_constraint_into_matrix): Same.
504         (ppl_set_inhomogeneous_gmp): Same.
505         (ppl_set_coef_gmp): Same.
506         (ppl_strip_loop): Same.
507         (ppl_lexico_compare_linear_expressions): Same.
508         (ppl_max_for_le_pointset): Same.
509         (ppl_min_for_le_pointset): Same.
510         (ppl_build_realtion): Same.
511         * graphite-ppl.h (gmp_cst_to_tree): Same.
512         (ppl_set_inhomogeneous): Same.
513         (ppl_set_inhomogeneous_tree): Same.
514         (ppl_set_coef): Same.
515         (ppl_set_coef_tree): Same.
516         * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Same.
517         (build_scop_scattering): Same.
518         (add_value_to_dim): Same.
519         (scan_tree_for_params_right_scev): Same.
520         (scan_tree_for_params_int): Same.
521         (scan_tree_for_params): Same.
522         (find_params_in_bb): Same.
523         (find_scop_parameters): Same.
524         (add_upper_bounds_from_estimated_nit): Same.
525         (build_loop_iteration_domains): Same.
526         (create_linear_expr_from_tree): Same.
527         (add_condition_to_domain): Same.
528         (pdr_add_memory_accesses): Same.
529
530 2010-05-06  Magnus Fromreide  <magfr@lysator.liu.se>
531             Jason Merrill  <jason@redhat.com>
532
533         * c-common.c (c_common_reswords): Add nullptr.
534         * c-common.h: Add RID_NULLPTR.  Reorganize C++0x rids.
535         * dwarf2out.c (is_base_type): Handle NULLPTR_TYPE.
536         (gen_type_die_with_usage): Likewise.
537         * dbxout.c (dbxout_type): Likewise.
538         * sdbout.c (plain_type_1): Likewise.
539
540 2010-05-06  Jason Merrill  <jason@redhat.com>
541
542         * gimplify.c (gimplify_expr): Set GS_ALL_DONE when appropriate.
543         Don't change GS_OK to GS_ALL_DONE.  Make sure that all cases set
544         ret appropriately.
545         (gimplify_compound_lval): Return GS_ALL_DONE as appropriate.
546
547         * gimplify.c (gimplify_modify_expr_rhs): Don't return GS_OK for
548         stripping WITH_SIZE_EXPR.
549         (gimplify_expr) [MODIFY_EXPR]: Trust GS_OK even if the rhs didn't
550         change.
551
552 2010-05-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
553
554         * config.gcc: Removed mips-sgi-irix5*, mips-sgi-irix6.[0-4]* from
555         list of obsolete configurations.
556         Disabled check for obsolete configurations.
557         (mips-sgi-irix[56]*): Restrict to mips-sgi-irix6.5*.
558         Removed support for previous versions.
559         * config/mips/iris.h: Removed.
560         * config/mips/iris5.h: Removed.
561         * config/mips/iris6.h: Merged old iris.h contents.
562         (TARGET_IRIX): Removed.
563         (DRIVER_SELF_SPECS): Removed mabi=32.
564         (IDENT_ASM_OP): Removed undef.
565         (STARTFILE_SPEC): Removed mabi=32.
566         (ENDFILE_SPEC): Likewise.
567         (IRIX_SUBTARGET_LINK_SPEC): Likewise.
568         (MACHINE_TYPE): Update for IRIX 6.5.
569         * config/mips/mips.c (mips_build_builtin_va_list): Replaced
570         TARGET_IRIX by TARGET_IRIX6.
571         (mips_file_start): Likewise.
572         (mips_output_external): Remove IRIX 5/6 O32 support.
573         (mips_output_function_prologue): Likewise.
574         * config/mips/mips.h (TARGET_GPWORD): Replaced TARGET_IRIX by
575         TARGET_IRIX6.
576         (TARGET_CPU_CPP_BUILTINS): Likewise.
577         (TARGET_IRIX): Removed.
578         * config/mips/t-iris6 (MULTILIB_OPTIONS): Removed mabi=32.
579         (MULTILIB_DIRNAMES): Removed 32.
580         (MULTILIB_OSDIRNAMES): Removed ../lib.
581         * doc/install.texi (Prerequisites): Don't reference IRIX before 6.5.
582         (Specific, mips-sgi-irix5): Document removal.
583         (Specific, mips-sgi-irix6): Document IRIX 6.[0-4] and O32 ABI removal.
584         Remove references to older IRIX 6 releases and the O32 ABI.
585
586 2010-05-06  Jakub Jelinek  <jakub@redhat.com>
587
588         PR bootstrap/43994
589         * df-problems.c (dead_debug_insert_before): Use *DF_REF_REAL_LOC
590         instead of DF_REF_REAL_REG.
591
592 2010-05-06  Dave Korn  <dave.korn.cygwin@gmail.com>
593
594         PR target/43888
595         * config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
596         handling to still return true for x64 targets.
597
598 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
599
600         * config/m68k/uclinux.h (LIB_SPEC): Bring in sync with config/linux.h.
601
602 2010-05-06  Jan Hubicka  <jh@suse.cz>
603
604         PR tree-optimization/43791
605         * ipa-inline.c (update_caller_keys): Remove bogus
606         disregard_inline_limits check.
607
608 2010-05-06  Michael Matz  <matz@suse.de>
609
610         PR tree-optimization/43984
611         * tree-ssa-pre.c (inserted_phi_names): Remove.
612         (inserted_exprs): Change to bitmap.
613         (create_expression_by_pieces): Set bits, don't append to vector.
614         (insert_into_preds_of_block): Don't handle inserted_phi_names.
615         (eliminate): Don't look at inserted_phi_names, remove deleted
616         insns from inserted_exprs.
617         (remove_dead_inserted_code): Adjust to use bitmaps instead of vectors.
618         (init_pre, fini_pre): Allocate and free bitmaps.
619         (execute_pre): Insert insns on edges before elimination.
620
621 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
622
623         * tree.c (initializer_zerop): Handle STRING_CST.
624
625 2010-05-06  Manuel López-Ibáñez  <manu@gcc.gnu.org>
626
627         PR 40989
628         * doc/invoke.texi (Wimplicit): Document as C only.
629         * opts.c (common_handle_option): Add argument kind.
630         (handle_option): Rename as read_cmdline_option. Factor out code to...
631         (handle_option): ... here. New.
632         (handle_options): Rename as read_cmdline_options.
633         (decode_options): Update call.
634         (set_option): Use option index instead of option pointer. Classify
635         diagnostics correctly.
636         (enable_warning_as_error): Call handle_option.
637         * opts.h (set_option): Update declaration.
638         (handle_option): Declare.
639         * langhooks.h (struct lang_hooks): Add argument kind to handle_option.
640         * c.opt (Wimplicit,Wimplicit-int): Initialize to -1.
641         * c-opts.c (set_Wimplicit): Delete.
642         (c_family_lang_mask): New static constant.
643         (c_common_handle_option): Add argument kind. Use handle_option
644         instead of set_Wimplicit.
645         (c_common_post_options): warn_implicit and warn_implicit_int
646         are disabled by default.
647         * c-common.c (warn_implicit): Do not define here.
648         * c-common.h (warn_implicit): Do not declare here.
649         (c_common_handle_option): Update declaration.
650         * lto-opts.c (lto_reissue_options): Update call to set_option.
651
652 2010-05-06  Richard Guenther  <rguenther@suse.de>
653
654         PR tree-optimization/43571
655         * domwalk.c (walk_dominator_tree): Walk the dominator
656         sons in more optimal order.
657
658 2010-05-06  Richard Guenther  <rguenther@suse.de>
659
660         PR tree-optimization/43934
661         * tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
662         (stmt_cost): Likewise.
663         (extract_true_false_args_from_phi): New helper.
664         (determine_max_movement): For PHI nodes verify we can hoist them
665         and compute their cost.
666         (determine_invariantness_stmt): Handle PHI nodes.
667         (move_computations_stmt): Likewise.  Hoist PHI nodes in
668         if-converted form using COND_EXPRs.
669         (move_computations): Return TODO_cleanup_cfg if we hoisted PHI nodes.
670         (tree_ssa_lim): Likewise.
671         * tree-flow.h (tree_ssa_lim): Adjust prototype.
672         * tree-ssa-loop.c (tree_ssa_loop_im): Return todo.
673
674 2010-05-06  Richard Guenther  <rguenther@suse.de>
675
676         PR tree-optimization/43987
677         * tree-ssa-structalias.c (could_have_pointers): For possibly
678         address-taken variables force pointers to be recorded.
679         (create_variable_info_for_1): Likewise.
680         (push_fields_onto_fieldstack): Pass in wheter all fields
681         must have pointers.
682         (find_func_aliases): Query types instead of vars whether
683         they contain pointers where appropriate.
684
685 2010-05-06  Jan Hubicka  <jh@suse.cz>
686
687         * cgraphbuild.c (record_reference_ctx): Add varpool_node.
688         (record_reference, mark_address, mark_load, mark_store): Record
689         references.
690         (record_references_in_initializer): Update call of record_references.
691         (rebuild_cgraph_edges): Remove all references before rebuiding.
692         * cgraph.c (cgraph_create_node): Clear ref list.
693         (cgraph_remove_node): Remove references.
694         (dump_cgraph_node): Dump references.
695         (cgraph_clone_node): Clone references.
696         * cgraph.h: Include ipa-ref.h and ipa-ref-inline.h
697         (struct cgraph_node, varpool_node): Add ref_lst.
698         * ipa-ref.c: New file.
699         * ipa-ref.h: New file.
700         * ipa-ref-inline.h: New file.
701         * lto-cgraph.c (output_varpool): Take cgrag node set argument.
702         (referenced_from_other_partition_p): New function.
703         (lto_output_varpool_node): Take set arugment; call
704         referenced_from_other_partition.
705         (lto_output_ref): New.
706         (add_references): New.
707         (output_refs): New.
708         (output_cgraph): Compute boundary based on references; output refs.
709         (output_varpool): Accept cgraph_node_set argument.
710         (input_ref): New.
711         (input_refs): New.
712         (input_cgraph): Call input_refs.
713         * lto-section-in.c (lto_section_name): Add refs.
714         * Makefile.in: (cgraph.h): Include ipa-ref.h and ipa-ref-inline.h
715         (ipa-ref.o): New file.
716         * varpool.c (varpool_node): Clear ipa ref list.
717         (varpool_remove_node): Remove references.
718         (dump_varpool_node): Dump references.
719         (varpool_assemble_decl): Only compile finalized ones.
720         (varpool_extra_name_alias): Initialize ref list.
721         * lto-streamer.c (lto-get_section_name): Add .refs section.
722         * lto-streamer.h (lto_section_type): Add LTO_section_refs.
723         (referenced_from_other_partition_p): Declared.
724
725 2010-05-06  Ira Rosen  <irar@il.ibm.com>
726
727         PR tree-optimization/43901
728         * tree-vect-stmts.c (vectorizable_call): Assert that vector
729         type is not NULL if it's transformation phase, and return
730         FALSE if it's analysis.
731         (vectorizable_conversion, vectorizable_operation,
732         vectorizable_type_demotion, vectorizable_type_promotion): Likewise.
733
734 2010-05-05  Andrew Pinski  <andrew.pinski@caviumnetworks.com>
735
736         * config/mips/mips.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
737         Delete.
738         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
739         New define.
740         * config/mips/mips-protos.h
741         (mips_small_register_classes_for_mode_p): Delete prototype.
742
743 2010-05-06  Bernd Schmidt  <bernds@codesourcery.com>
744
745         * config/arm/arm.h (MAX_LDM_STM_OPS): New macro.
746         * config/arm/arm.c (multiple_operation_profitable_p,
747         compute_offset_order): New static functions.
748         (load_multiple_sequence, store_multiple_sequence): Use them.
749         Replace constant 4 with MAX_LDM_STM_OPS.  Compute order[0] from
750         memory offsets, not register numbers.
751         (emit_ldm_seq, emit_stm_seq): Replace constant 4 with MAX_LDM_STM_OPS.
752
753 2010-05-05  Steven Bosscher  <steven@gcc.gnu.org>
754
755         * stor-layout.c (pending_sizes): Change the type to VEC(tree,gc) *.
756         (get_pending_sizes, put_pending_size, put_pending_sizes):
757         Update the uses of pending_sizes.
758         * c-decl.c (store_parm_decls): Likewise.
759         * c-tree.h (struct c_arg_info): Likewise.
760         * tree.h: Update the prototype for get_pending_sizes and
761         put_pending_sizes.
762
763 2010-05-05  Jason Merrill  <jason@redhat.com>
764
765         PR debug/43370
766         * c-common.c (handle_aligned_attribute): Respect
767         ATTR_FLAG_TYPE_IN_PLACE.
768
769         PR testsuite/43758
770         * target.h (struct gcc_target): Add attribute_takes_identifier_p.
771         * target_def.h (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
772         (TARGET_INITIALIZER): Use it.
773         * c-common.c (attribute_takes_identifier_p): Call it.
774         * c-common.h: Update prototype.
775         * config/rs6000/rs6000.c (rs6000_attribute_takes_identifier_p): New.
776         (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
777
778 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
779
780         PR debug/43950
781         * dwarf2out.c (gen_compile_unit_die): Add DW_AT_identifier_case
782         DW_ID_down_case for Fortran compilation units.
783
784 2010-05-05  Jan Hubicka  <jh@suse.cz>
785
786         * lto-cgraph.c (lto_output_varpool_node, input_varpool_node): Correctly
787         handle aliases.
788
789 2010-05-05  Eric Botcazou  <ebotcazou@adacore.com>
790
791         * gimplify.c (gimplify_return_expr): Gimplify the size expressions of
792         a variable-sized RESULT_DECL.
793
794 2010-05-05  Maxim Kuvyrkov  <maxim@codesourcery.com>
795
796         * doc/invoke.texi (-mfix-cortex-m3-ldrd): Move from ARC section to ARM.
797
798 2010-05-05  Jason Merrill  <jason@redhat.com>
799
800         PR c++/43787
801         * gimplify.c (gimplify_expr): Keep working if gimplify_modify_expr
802         returns GS_OK.
803         (gimplify_modify_expr_rhs): Return GS_OK if anything changed.
804
805 2010-05-05  Alexandre Oliva  <aoliva@redhat.com>
806             Jakub Jelinek  <jakub@redhat.com>
807
808         PR debug/43478
809         * df-problems.c (struct dead_debug_use, struct dead_debug): New.
810         (dead_debug_init, dead_debug_finish): New functions.
811         (dead_debug_add, dead_debug_insert_before): Likewise.
812         (df_note_bb_compute): Initialize a dead_debug object, add dead
813         debug uses to it, insert debug bind insns before death insns,
814         reset debug insns that refer to pending uses at the end.
815         * rtl.h (make_debug_expr_from_rtl): New prototype.
816         * varasm.c (make_debug_expr_from_rtl): New function.
817
818 2010-05-05  Jan Hubicka  <jh@suse.cz>
819
820         * lto-cgraph.c (output_varpool): Forward declare; work on encoder.
821         (lto_varpool_encoder_new, lto_varpool_encoder_delete,
822         lto_varpool_encoder_encode, lto_varpool_encoder_lookup,
823         lto_varpool_encoder_deref, lto_varpool_encoder_size,
824         lto_varpool_encoder_encode_initializer_p,
825         lto_set_varpool_encoder_encode_initializer): New functions.
826         (lto_output_cgraph): Take vset parameter too; compute varpool encoder;
827         call output_varpool.
828         (input_varpool_node): Do not always set analyzed.
829         (input_cgraph_1): Return vector of cgraph nodes.
830         (input_varpool_1): Return vector of varpools.
831         (input_cgraph): Free the vectors.
832         * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
833         output only initializers needed.
834         (lto_output): Only call output_cgraph.
835         (produce_asm_for_decls): Call lto_varpool_encoder_delete.
836         * lto-section-out.c (lto_new_out_decl_state): Initialize
837         state->varpool_node_encoder.
838         * lto-streamer.h (lto_varpool_encoder_d): New.
839         (lto_out_decl_state, lto_file_decl_data): Add varpool_node_encoder.
840         (lto_cgraph_encoder_delete, output_cgraph): Update prototype.
841         (lto_varpool_encoder_deref, lto_varpool_encoder_lookup,
842         lto_varpool_encoder_encode, lto_varpool_encoder_delete,
843         lto_varpool_encoder_encode_initializer_p, lto_varpool_encoder_new):
844         Declare.
845         (output_varpool, input_varpool): Remove declarations.
846
847 2010-05-05  Jan Hubicka  <jh@suse.cz>
848
849         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Alias of variable
850         with body can prevail.
851
852 2010-05-05  Jan Hubicka  <jh@suse.cz>
853
854         * lto-symtab.c (lto_symtab_merge_decls_1): Prefer declarations with
855         size.
856
857 2010-05-05  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
858
859         * Makefile.in (build/gengtype.o): Add $(HASHTAB_H) to dependencies.
860
861         * gengtype.h (erro_at_line): Constify pos argument.
862
863         * gengtype.c: Include hashtab.h.
864         (enum gc_used): Document GC_MAYBE_POINTED_TO.
865         (error_at_line): Constify pos argument.
866         (do_typedef): Initialize p->opt field.
867         (get_file_gtfilename): Fix comment typo.
868         (struct walk_type_data): Constify line field.
869         (get_output_file_for_structure): New function.
870         (write_local_func_for_structure): Constify orig_s argument.
871         Use get_output_file_for_structure.
872         (write_func_for_structure): Use get_output_file_for_structure.
873         (INDENT): New define.
874         (dump_pair, dump_type, dump_type_list, dump_typekind)
875         (dump_gc_used, dump_options, dump_fileloc, dump_type_u_s)
876         (dump_type_u_a, dump_type_u_param_struct, dump_everything): New
877         functions.
878         (seen_types): New variable.
879         (main): New variable do_dump.  Process "-d" command line option.
880         Call dump_everything if dump requested.
881
882 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
883
884         * var-tracking.c (var_debug_decl): Save DECL_DEBUG_EXPR value
885         in a temporary instead of invoking the macro multiple times.
886         (track_expr_p): Likewise.
887
888 2010-05-04  Neil Vachharajani <nvachhar@google.com>
889
890         * doc/invoke.texi (-Wcoverage-mismatch): Updated documentation as
891         per new semantics.
892         * opts.c (decode_options): Enable -Werror=coverage-mismatch.
893         * coverage.c (get_coverage_counts): Always emit a warning.  Adjust
894         conditions for printing notes.
895         * common.opt (-Wcoverage-mismatch): Allow negative, default to
896         true, update documentation.
897         * Makefile.in (coverage.o): Add dependence on DIAGNOSTIC_H and intl.h.
898
899 2010-05-04  Jakub Jelinek  <jakub@redhat.com>
900
901         PR c/43981
902         * c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
903         on dimen.
904
905 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
906
907         PR target/43799
908         * config/i386/i386.md (sse_prologue_save): Clobber CC register.
909         (*sse_prologue_save_insn1): Likewise.
910         (SSE prologue save splitter): Likewise.
911
912 2010-05-04  Eric Botcazou  <ebotcazou@adacore.com>
913
914         * tree.c (free_lang_data_in_one_sizepos): New inline function.
915         (free_lang_data_in_type): Call it on TYPE_{MIN|MAX}_VALUE of numerical
916         types.  Call it on TYPE_SIZE and TYPE_SIZE_UNIT of all types.
917         (free_lang_data_in_decl): Call it on DECL_SIZE and DECL_SIZE_UNIT of
918         all decls.  Call it on DECL_FIELD_OFFSET of fields.
919         (find_decls_types_r): Follow DECL_VALUE_EXPR.
920         (iterative_hash_expr) <PLACEHOLDER_EXPR>: New case.
921
922 2010-05-04  Martin Jambor  <mjambor@suse.cz>
923
924         * tree-sra.c (build_access_from_expr_1): The first parameter type
925         changed to simple tree.
926         (build_access_from_expr): Likewise, gsi parameter was eliminated.
927         (scan_assign_result): Renamed to assignment_mod_result, enum elements
928         renamed as well.
929         (build_accesses_from_assign): Removed all parameters except for a
930         simple gimple statement.  Now returns a simple bool.
931         (scan_function): All non-analysis parts moved to separate functions
932         sra_modify_function_body and ipa_sra_modify_function_body.  Removed all
933         parameters and updated both callers.
934         (sra_modify_expr): Removed parameter data.
935         (sra_modify_function_body): New function.
936         (perform_intra_sra): Call sra_modify_function_body to modify the
937         function body.
938         (replace_removed_params_ssa_names): Parameter data changed into
939         adjustments vector.
940         (sra_ipa_modify_expr): Likewise.  Also removed unused parameter gsi and
941         changed the parameter dont_convert to convert with the opposite
942         meaning.
943         (sra_ipa_modify_assign): Parameter data changed into adjustments
944         vector, return value changed to bool.
945         (ipa_sra_modify_function_body): New function.
946         (sra_ipa_reset_debug_stmts): Updated a comment.
947         (modify_function): Use ipa_sra_modify_function_body to modify function
948         body.
949
950 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
951
952         PR middle-end/43671
953         * alias.c (true_dependence): Handle the same VALUE in x and mem.
954         (canon_true_dependence): Likewise.
955         (write_dependence_p): Likewise.
956
957 2010-05-04  Jan Hubicka  <jh@suse.cz>
958
959         * Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h
960         * cgraphbuild.c: Include ipa-utils.h
961         (record_reference_ctx): New struct.
962         (record_reference): Simplify to work on initializers; not statements.
963         (mark_address, mark_load, mark_store): New.
964         (build_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
965         walk PHI nodes too.
966         (record_references_in_initializer): Update use of record_reference.
967         (rebuild_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
968         walk PHI nodes too.
969
970 2010-05-04  Jan Hubicka  <jh@suse.cz>
971
972         * lto-symtab.c (lto_cgraph_replace_node): Do not remove edges;
973         node will be removed anyway.
974         (lto_varpool_replace_node): Allow also unanalyzed nodes;
975         relink aliases of node into prevailing node.
976         * varpool.c (varpool_remove_node): Remove aliases properly;
977         when removing node, remove all its aliases too; remove DECL_INITIAL
978         of removed node; ggc_free the varpool node.
979
980 2010-05-04  Richard Guenther  <rguenther@suse.de>
981
982         PR tree-optimization/43879
983         * tree-ssa-structalias.c (alias_get_name): Use
984         DECL_ASSEMBLER_NAME if available.
985         (create_function_info_for): Return the varinfo node.
986         (ipa_pta_execute): Associate same-body aliases and extra names
987         with their origin nodes varinfo.  Dump DECL_ASSEMBLER_NAME.
988
989 2010-05-04  Kaz Kojima  <kkojima@gcc.gnu.org>
990
991         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Remove static.
992
993 2010-05-04  Mikael Pettersson  <mikpe@it.uu.se>
994
995         PR bootstrap/43964
996         * ira-color.c (assign_hard_reg): Declare rclass and add_cost
997         only if HONOR_REG_ALLOC_ORDER is not defined.
998
999 2010-05-04  Richard Guenther  <rguenther@suse.de>
1000
1001         PR tree-optimization/43949
1002         * tree-vrp.c (extract_range_from_binary_expr): Only handle
1003         TRUNC_MOD_EXPR.
1004
1005 2010-04-26  Jason Merrill  <jason@redhat.com>
1006
1007         * c.opt (-fstrict-enums): New.
1008         * doc/invoke.texi (C++ Dialect Options): Document -fstrict-enums.
1009
1010 2010-05-03  David Ung <davidu@mips.com>
1011             James E. Wilson  <wilson@codesourcery.com>
1012
1013         * config/mips/mips.c (mips_output_division): If GENERATE_DIVIDE_TRAPS,
1014         emit the trap instruction before the divide for TUNE_74K.
1015
1016 2010-05-03  Steven Bosscher  <steven@gcc.gnu.org>
1017
1018         * doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.
1019         (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
1020         based on the above, for new target hook.
1021
1022         * hooks.c (hook_bool_mode_true): New generic hook.
1023         * hooks.h (hook_bool_mode_true): Add prototype.
1024
1025         * target.h (struct gcc_target): Add small_register_classes_for_mode_p
1026         target hook.
1027         * target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
1028         target hook, set to hook_bool_mode_false.
1029         * regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
1030         * reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
1031         with targetm.small_register_classes_for_mode_p.
1032         (find_reusable_reload): Likewise.
1033         (combine_reloads): Likewise.
1034         * reload1.c (reload_as_needed): Likewise.
1035         * cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
1036         * ifcvt.c (noce_process_if_block, check_cond_move_block,
1037         dead_or_predicable): Likewise.
1038         * regmove.c (optimize_reg_copy_1): Likewise.
1039         * calls.c (prepare_call_address): Likewise.
1040         (precompute_register_parameters): Likewise.
1041
1042         * config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
1043         hook definition.
1044         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
1045         implementation of the hook that considers all register classes
1046         small except for SH64.
1047         (sh_override_options): Use the new hook.
1048         * config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
1049         Add prototype.
1050
1051         * config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
1052         hook definition.
1053         * config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
1054         implementation of the hook that considers all register classes
1055         small for THUMB1.
1056         * config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
1057         Add prototype.
1058
1059         * config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
1060         hook definition.
1061         * config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
1062         implementation of the hook that considers all register classes
1063         small for MIPS16.
1064         * config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
1065         Add prototype.
1066
1067         * config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
1068         hook definition.
1069         * config/m32c/m32c.h: Likewise.
1070         * config/pdp11/pdp11.h: Likewise.
1071         * config/avr/avr.h: Likewise.
1072         * config/xtensa/xtensa.h: Likewise.
1073         * config/m68hc11/m68hc11.h: Likewise.
1074         * config/mn10300/mn10300.h: Likewise.
1075         * config/mcore/mcore.h: Likewise.
1076         * config/h8300/h8300.h: Likewise.
1077         * config/bfin/bfin.h: Likewise.
1078
1079         * config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
1080         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.
1081
1082 2010-05-03  Anatoly Sokolov  <aesok@post.ru>
1083
1084         * double-int.h (tree_to_double_int): Remove macro.
1085         (double_int_to_tree, double_int_fits_to_tree_p): Move prototypes ...
1086         * tree.h (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1087         (tree_to_double_int): New function.
1088         * double-int.c (double_int_to_tree, double_int_fits_to_tree_p):
1089         Move ...
1090         * tree.c (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1091
1092 2010-05-03  Richard Guenther  <rguenther@suse.de>
1093
1094         PR tree-optimization/43971
1095         * tree-ssa-structalias.c (get_constraint_for_1): Fix
1096         constraints in the !flag_delete_null_pointer_checks case.
1097
1098 2010-05-03  Jakub Jelinek  <jakub@redhat.com>
1099
1100         PR debug/43972
1101         * config/i386/i386.c (ix86_delegitimize_address): Make sure the
1102         result mode matches original rtl mode.
1103
1104 2010-05-03  Dave Korn  <dave.korn.cygwin@gmail.com>
1105
1106         PR target/43888
1107         * config/i386/winnt.c (i386_pe_binds_local_p): Handle weak decls.
1108
1109 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1110
1111         * config/i386/i386.c (ix86_target_string): Output 'flags', not 'isa',
1112         when processing flag options.
1113
1114 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1115
1116         * gcov-iov.c (main): Change format string placeholder
1117         from %#08x to 0x%08x.
1118         * genchecksum.c (dosum): Change format string placeholder
1119         from %#02x to 0x%02x.
1120
1121 2010-05-02  Richard Guenther  <rguenther@suse.de>
1122
1123         PR tree-optimization/43879
1124         * tree-tailcall.c (find_tail_calls): Clobbers also prevent tail calls.
1125
1126 2010-05-02  Bruno Haible  <bruno@clisp.org>
1127
1128         * doc/extend.texi (Function Attributes): Fix a typo.
1129
1130 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1131
1132         Revert:
1133         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Change format string
1134         placeholder from 0x%x to %#x.
1135         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
1136         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
1137         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
1138         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
1139         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
1140         * config/i386/i386.c (ix86_target_string): Ditto.
1141         * config/i386/i386.c (output_pic_addr_const): Ditto.
1142         (print_operand): Ditto.
1143
1144 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1145
1146         * vmsdbgout.c (ASM_OUTPUT_DEBUG_DATA1): Change format string
1147         placeholder from 0x%x to %#x.
1148         (ASM_OUTPUT_DEBUG_DATA1): Ditto.
1149         (ASM_OUTPUT_DEBUG_DATA4): Ditto.
1150         (ASM_OUTPUT_DEBUG_DATA): Ditto.
1151         (ASM_OUTPUT_DEBUG_ADDR_DATA): Ditto.
1152         (ASM_OUTPUT_DEBUG_DATA8): Ditto.
1153         * optc-gen.awk: Ditto.
1154         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Ditto.
1155         (HOST_WIDE_INT_PRINT_HEX): Ditto.
1156         (HOST_WIDEST_INT_PRINT_HEX): Ditto.
1157         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
1158
1159 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
1160
1161         * target.h (struct calls): Add function_value_regno_p field.
1162         * target-def.h (TARGET_FUNCTION_VALUE_REGNO_P): Define.
1163         (TARGET_INITIALIZER): Use TARGET_FUNCTION_VALUE_REGNO_P.
1164         * targhooks.c (default_function_value_regno_p): New function.
1165         * targhooks.h (default_function_value_regno_p): Declare function.
1166         * rtlanal.c (keep_with_call_p): Use function_value_regno_p hook.
1167         * builtins.c. (apply_result_size): (Ditto.).
1168         * combine.c. (likely_spilled_retval_p): (Ditto.).
1169         * mode-switching.c. Include 'target.h'.
1170         (create_pre_exit): Use function_value_regno_p hook.
1171         * Makefile.in (mode-switching.o): Add dependency on TARGET_H.
1172         * doc/tm.texi (FUNCTION_VALUE_REGNO_P,
1173         TARGET_FUNCTION_VALUE_REGNO_P): Revise documentation.
1174
1175         * config/i386/i386.h (TARGET_FUNCTION_VALUE_REGNO_P): Remove macro.
1176         * config/i386/i386.c (TARGET_FUNCTION_VALUE_REGNO_P): Define macro.
1177         (ix86_function_value_regno_p): Declare as static, change argument
1178         type to const unsigned int.
1179         * config/i386/i386-protos.h (ix86_function_value_regno_p): Remove.
1180
1181 2010-05-01  Richard Guenther  <rguenther@suse.de>
1182
1183         PR tree-optimization/43949
1184         * tree-vrp.c (ssa_name_nonnegative_p): Return true for unsigned
1185         types.
1186         (extract_range_from_binary_expr): Handle *_MOD_EXPR.
1187
1188 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
1189
1190         * rtl.h (CONST_DOUBLE_P): Define.
1191         (rtx_to_double_int): Declare.
1192         * emit-rtl.c (rtx_to_double_int): New function.
1193         * dwarf2out.c (insert_double): New function.
1194         (loc_descriptor, add_const_value_attribute): Clean up, use
1195         rtx_to_double_int and insert_double functions.
1196
1197 2010-05-01  Jonathan Wakely  <jwakely.gcc@gmail.com>
1198
1199         * doc/extend.texi (Inline): Add missing return keyword to examples.
1200         (Function Attributes, Variable Attributes, Pragmas): Hyphenate
1201         "command-line".
1202
1203 2010-04-30  Eric Botcazou  <ebotcazou@adacore.com>
1204
1205         * tree-ssa-loop-ivopts.c (may_be_unaligned_p): Check the alignment of
1206         the variable part of the offset as well.  Use highest_pow2_factor for
1207         all alignment checks.
1208
1209 2010-04-30  Richard Guenther  <rguenther@suse.de>
1210
1211         PR tree-optimization/43879
1212         * tree-ssa-structalias.c (type_could_have_pointers): Functions
1213         can have pointers.
1214
1215 2010-04-30  Jan Hubicka  <jh@suse.cz>
1216
1217         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Chose var with
1218         varpool.
1219         (lto_symtab_merge_decls_1): Remove logic looking for an initializer.
1220
1221 2010-04-30  Jan Hubicka  <jh@suse.cz>
1222
1223         * cgraph.h (cgraph_node_set_nonempty_p, varpool_node_set_nonempty_p):
1224         New.
1225         * lto-cgraph.c (input_cgraph): Remove call to lto_mark_file_for_ltrans.
1226         * lto-streamer.h (lto_file_decl_data): Remove needs_ltrans_p.
1227         (lto_file_needs_ltrans_p, lto_mark_file_for_ltrans,
1228         cgraph_node_set_needs_ltrans_p): Remove.
1229
1230 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
1231
1232         * sdbout.c: Include vec.h, do not include varray.h.
1233         (deferred_global_decls, sdbout_global_decl,
1234         sdbout_finish, sdbout_init): Use VEC instead of VARRAY.
1235         * toplev.c: Do not include varray.h.
1236         (dump_memory_report): Do not dump VARRAY statistics.
1237         * gengtype.c (open_base_file): Ignore varray.h.
1238         * Makefile.in: Update for abovementioned changes.
1239         Remove all traces of varray.c and varray.h.
1240         * varray.c: Remove file.
1241         * varray.h: Remove file.
1242
1243 2010-04-30  Jan Hubicka  <jh@suse.cz>
1244
1245         * lto-cgraph.c (lto_output_varpool_node): Always output constant pool
1246         references.
1247
1248 2010-04-30  Jan Hubicka  <jh@suse.cz>
1249
1250         * tree-profile.c (tree_init_ic_make_global_vars): Mark new decls as
1251         needed.
1252
1253 2010-04-30  Richard Guenther  <rguenther@suse.de>
1254
1255         * tree-ssa-structalias.c (get_constraint_for_1): Generate
1256         constraints for CONSTRUCTOR.
1257
1258 2010-04-30  Richard Guenther  <rguenther@suse.de>
1259
1260         PR lto/43946
1261         * passes.c (init_optimization_passes): Move pass_ipa_free_lang_data
1262         first after all lowering passes.
1263
1264 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
1265
1266         * toplev.c: Include varray.h for statistics dumping.
1267         * tree.h: Do not declare varray_head_tag.
1268         * tree-into-ssa.c, tree-ssa-uninit.c, tree-phinodes.c, omega.c,
1269         regs.h, lto-cgraph.c, tree-ssa-loop-ivopts.c, tree-nomudflap.c,
1270         c-objc-common.c, lto-streamer-out.c, tree-ssa-propagate.c,
1271         gimple-low.c, c-semantics.c, dwarf2out.c, lto-streamer-in.c,
1272         lto-section-in.c, alias.c, tree-if-conv.c, gimplify.c, ggc-zone.c,
1273         tree-ssa.c, tree-ssa-loop-prefetch.c, integrate.h, c-gimplify.c,
1274         c-common.c, c-common.h, reg-stack.c, basic-block.h,
1275         tree-ssa-structalias.c, lto-section-out.c, tree-ssanames.c: Do not
1276         include varray.h.
1277         * Makefile.in: Update for abovementioned changes.
1278
1279 2010-04-30  Jakub Jelinek  <jakub@redhat.com>
1280
1281         PR debug/43942
1282         * tree.c (auto_var_in_fn_p): Return false for DECL_EXTERNAL vars.
1283
1284 2010-04-30  Hariharan Sandanagobalane  <hariharan@picochip.com>
1285
1286         * config/picochip/picochip.c (picochip_legitimize_address): Define.
1287         Use this function to do machine-specific conversion.
1288         (picochip_legitimize_reload_address): Likewise.
1289         (picochip_legitimate_address_p): Check valid base register only if
1290         strict.
1291         (picochip_check_conditional_copy): Check for modw only if opnd is
1292         register.
1293         * config/picochip/picochip.h (LEGITIMIZE_RELOAD_ADDRESS): Use this
1294         to call the function in c.
1295         * config/picochip/picochip-protos.h
1296         (picochip_legitimize_reload_address): Define.
1297         * config/picochip/picochip.md (supported_compare1): Define.
1298
1299 2010-04-30  Jan Hubicka  <jh@suse.cz>
1300
1301         * cgraph.h (cgraph_local_info): Remove for_functions_valid.
1302         (cgraph_global_info): Remove inlined.
1303         (LTO_cgraph_tag_names): Remove.
1304         (LTO_cgraph_tags, LCC_NOT_FOUND): Move to ...
1305         * lto-cgraph.c (LTO_cgraph_tags, LCC_NOT_FOUND): ... here;
1306         simplify cgraph tags and document.
1307         (lto_output_node): Use only LTO_cgraph_unavail_node and
1308         LTO_cgraph_analyzed_node; Do not save analzed, reachable,
1309         for_functions_valid, global info, process and output flags.
1310         (input_overwrite_node): Initialize estimated stack size and
1311         estimated growth.  Do not read flags we no longer store.
1312         (input_node): Likewise do not read info no longer stored.
1313         * ipa-inline.c (cgraph_mark_inline_edge): Do not set global.inlined
1314         flag.
1315
1316 2010-04-30  Richard Guenther  <rguenther@suse.de>
1317
1318         PR tree-optimization/43879
1319         * tree-ssa-structalias.c (get_constraint_for_1): Properly
1320         handle non-zero initializers.
1321
1322 2010-04-30  Richard Guenther  <rguenther@suse.de>
1323
1324         * builtins.c (fold_builtin_1): Delete free (0).
1325
1326 2010-04-29  Jan Hubicka  <jh@suse.cz>
1327
1328         * gengtype.c (open_base_files): Add lto-streamer.h
1329         * cgraph.h (cgraph_local_info): lto_file_data is now in GGC.
1330         (pass_ipa_cp): GGC collect.
1331         * toplev. (compile_file): Do not output symbols.
1332         * ipa-inline.c (pass_ipa_inline): Add ggc collect.
1333         * timevar.def (TV_VARPOOL, TV_IPA_LTO_DECL_INIT_IO,
1334         TV_IPA_LTO_DECL_MERGE, TV_IPA_LTO_CGRAPH_MERGE, TV_VAROUT): New.
1335         * lto-section-in.c: Include ggc.h
1336         (lto_new_in_decl_state): Alloc in GGC.
1337         (lto_delete_in_decl_state): Likewise.
1338         * ipa.c (pass_ipa_function_visibility, pass_ipa_whole_program):
1339         Collect.
1340
1341 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
1342
1343         PR target/42895
1344         * doc/tm.texi (ADJUST_REG_ALLOC_ORDER): Renamed from
1345         ORDER_REGS_FOR_LOCAL_ALLOC.  All instances of this macro changed.
1346         (HONOR_REG_ALLOC_ORDER): Describe new macro.
1347         * ira.c (setup_alloc_regs): Use ADJUST_REG_ALLOC_ORDER if defined.
1348         * ira-color.c (assign_hard_reg): Take prologue/epilogue costs into
1349         account only if HONOR_REG_ALLOC_ORDER is not defined.
1350         * config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Define.
1351         * system.h (ORDER_REGS_FOR_LOCAL_ALLOC): Poison.
1352
1353 2010-04-29  Jon Grant  <04@jguk.org>
1354
1355         * collect2.c (vflag): Change type from int to bool.
1356         (debug): Likewise.
1357         (helpflag): New global bool.
1358         (main): Set vflag and debug with boolean, not integer truth values.
1359         Accept new "--help" option and output usage text if found.
1360         * collect2.h (vflag): Update prototype.
1361         (debug): Likewise.
1362
1363 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
1364
1365         PR bootstrap/43936
1366         * plugin.h (flag_plugin_added): Moved out of invoke_plugin_callbacks.
1367
1368 2010-04-29  Richard Guenther  <rguenther@suse.de>
1369
1370         PR bootstrap/43935
1371         * plugin.h (invoke_plugin_callbacks): Annotate arguments
1372         with ATTRIBUTE_UNUSED.
1373
1374 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
1375
1376         PR target/43921
1377         * config/i386/i386.c (get_some_local_dynamic_name): Replace
1378         INSN_P with NONDEBUG_INSN_P.
1379         (distance_non_agu_define): Likewise.
1380         (distance_agu_use): Likewise.
1381
1382 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
1383
1384         From Dominique d'Humieres <dominiq@lps.ens.fr>
1385         PR bootstrap/43858
1386         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs to compute
1387         test_set.
1388
1389 2010-04-29  Brian Hackett  <bhackett1024@gmail.com>
1390
1391         * plugin.h (invoke_plugin_callbacks): New inline function.
1392         * plugin.c (flag_plugin_added): New global flag.
1393         (add_new_plugin): Initialize above flag.
1394         (invoke_plugin_callbacks): Rename to ...
1395         (invoke_plugin_callbacks_full): ... this.
1396
1397 2010-04-28  Jan Hubicka  <jh@suse.cz>
1398
1399         * lto-symtab.c (lto_symtab_entry_def) Add vnode.
1400         (lto_varpool_replace_node): New.
1401         (lto_symtab_resolve_symbols): Resolve varpool nodes.
1402         (lto_symtab_merge_decls_1): Prefer decls with varpool node.
1403         (lto_symtab_merge_cgraph_nodes_1): Merge varpools.
1404         * cgraph.h (varpool_node_ptr): New type.
1405         (varpool_node_ptr): New vector.
1406         (varpool_node_set_def): New structure.
1407         (varpool_node_set): New type.
1408         (varpool_node_set): New vector.
1409         (varpool_node_set_element_def): New structure.
1410         (varpool_node_set_element, const_varpool_node_set_element): New types.
1411         (varpool_node_set_iterator): New type.
1412         (varpool_node): Add prev pointers, add used_from_other_partition,
1413         in_other_partition.
1414         (varpool_node_set_new, varpool_node_set_find, varpool_node_set_add,
1415         varpool_node_set_remove, dump_varpool_node_set, debug_varpool_node_set,
1416         varpool_get_node, varpool_remove_node): Declare.
1417         (vsi_end_p, vsi_next, vsi_node, vsi_start, varpool_node_in_set_p,
1418         varpool_node_set_size): New inlines.
1419         * cgraph.c (dump_cgraph_node): Dump asm names of aliases.
1420         * tree-pass.h (varpool_node_set_def): Forward declare.
1421         (ipa_opt_pass_d): Summary writting takes vnode sets too.
1422         (ipa_write_optimization_summaries): Update prototype.
1423         * ipa-cp.c (ipcp_write_summary): Update.
1424         * ipa-reference.c (ipa_reference_write_summary): Update.
1425         * lto-cgraph.c (lto_output_varpool_node): New static function.
1426         (output_varpool): New function.
1427         (input_varpool_node): New static function.
1428         (input_varpool_1): New function.
1429         (input_cgraph): Input varpool.
1430         * ipa-pure-const.c (pure_const_write_summary): Update.
1431         * lto-streamer-out.c (lto_output): Update, output varpool too.
1432         (write_global_stream): Kill WPA hack.
1433         (produce_asm_for_decls): Update.
1434         (output_alias_pair_p): Handle variables.
1435         (output_unreferenced_globals): Output only needed partition of varpool.
1436         * ipa-inline.c (inline_write_summary): Update.
1437         * lto-streamer-in.c (lto_input_tree_ref, lto_input_tree): Do not build
1438         cgraph.
1439         * lto-section-in.c (lto_section_name): Add varpool and jump funcs.
1440         * ipa.c (hash_varpool_node_set_element, eq_varpool_node_set_element,
1441         varpool_node_set_new, varpool_node_set_add,
1442         varpool_node_set_remove, varpool_node_set_find, dump_varpool_node_set,
1443         debug_varpool_node_set): New functions.
1444         * passes.c (rest_of_decl_compilation): when in LTO do not finalize.
1445         (execute_one_pass): Process new decls too.
1446         (ipa_write_summaries_2): Pass around vsets.
1447         (ipa_write_summaries_1): Likewise.
1448         (ipa_write_summaries): Build vset; be more selective about cgraph nodes
1449         to add.
1450         (ipa_write_optimization_summaries_1): Pass around vsets.
1451         (ipa_write_optimization_summaries): Likewise.
1452         * varpool.c (varpool_get_node): New.
1453         (varpool_node): Update doubly linked lists.
1454         (varpool_remove_node): New.
1455         (dump_varpool_node): More dumping.
1456         (varpool_enqueue_needed_node): Update doubly linked lists.
1457         (decide_is_variable_needed): Kill ltrans hack.
1458         (varpool_finalize_decl): Kill lto hack.
1459         (varpool_assemble_decl): Skip decls in other partitions.
1460         (varpool_assemble_pending_decls): Update doubly linkes lists.
1461         (varpool_empty_needed_queue): Likewise.
1462         (varpool_extra_name_alias): Likewise.
1463         * lto-streamer.c (lto_get_section_name): Add vars section.
1464         * lto-streamer.h (lto_section_type): Update.
1465         (output_varpool, input_varpool): Declare.
1466
1467 2010-04-28  Mike Stump  <mikestump@comcast.net>
1468
1469         * config/i386/darwin.h (CC1_SPEC): Ignore -mdynamic-no-pic for now.
1470
1471 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1472
1473         * lto-streamer-in.c (unpack_ts_type_value_fields): Replace test for
1474         record or union type with RECORD_OR_UNION_TYPE_P predicate.
1475         (lto_input_ts_type_tree_pointers): Likewise.
1476         * lto-streamer-out.c (pack_ts_type_value_fields): Likewise.
1477         (lto_output_ts_type_tree_pointers): Likewise.
1478
1479 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1480
1481         Uniquization of constants at the Tree level
1482         * tree.h (DECL_IN_CONSTANT_POOL): New macro.
1483         (tree_decl_with_vis): Add in_constant_pool bit, move shadowed_for_var_p
1484         bit to the end.
1485         (tree_output_constant_def): Declare.
1486         * gimplify.c (gimplify_init_constructor): When using block copy, first
1487         uniquize the constant constructor on the RHS.
1488         * lto-streamer-in.c (unpack_ts_decl_with_vis_value_fields): Deal with
1489         DECL_IN_CONSTANT_POOL flag.
1490         * lto-streamer-out.c (pack_ts_decl_with_vis_value_fields): Likewise.
1491         * varasm.c (make_decl_rtl): Deal with variables belonging to the global
1492         constant pool.
1493         (assemble_variable): Deal with symbols belonging to the tree constant
1494         pool.
1495         (get_constant_section): Add ALIGN parameter and simplify.
1496         (build_constant_desc): Build a VAR_DECL and attach it to the symbol.
1497         (assemble_constant_contents): Use the expression of the VAR_DECL.
1498         (output_constant_def_contents): Use the alignment of the VAR_DECL.
1499         (tree_output_constant_def): New global function.
1500         (mark_constant): Use the expression of the VAR_DECL.
1501         (place_block_symbol): Use the alignment of the VAR_DECL and the size of
1502         its expression.
1503         (output_object_block): Likewise and assemble the expression.
1504
1505 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
1506
1507         * lto-streamer.c [LTO_STREAMER_DEBUG] (tree_htab, tree_hash_entry,
1508         hash_tree, eq_tree): New tree hash table.
1509         (lto_streamer_init) [LTO_STREAMER_DEBUG]: Initialize it.
1510         [LTO_STREAMER_DEBUG] (lto_orig_address_map, lto_orig_address_get,
1511         lto_orig_address_remove): Reimplement.
1512
1513 2010-04-28  Xinliang David Li  <davidxl@google.com>
1514
1515         PR c/42643
1516         * tree-ssa-uninit.c (can_skip_redundant_opnd): New function.
1517         (compute_uninit_opnds_pos): New function.
1518         (is_non_loop_exit_postdominating): New function.
1519         (compute_control_dep_chain): New function.
1520         (find_pdom): New function.
1521         (convert_control_dep_chain_into_preds): New function.
1522         (find_predicates): New function.
1523         (find_control_equiv_block): New function.
1524         (collect_phi_def_edges): New function.
1525         (find_def_preds): New function.
1526         (find_dom): New function.
1527         (dump_predicates): New function.
1528         (get_cmp_code): New function.
1529         (is_value_included_in): New function.
1530         (find_matching_predicate_in_rest_chains): New function.
1531         (use_pred_not_overlap_with_undef_path_pred): New function.
1532         (is_use_properly_guarded): New function.
1533         (normalize_cond_1): New function.
1534         (is_and_or_or): New function.
1535         (normalize_cond): New function.
1536         (is_gcond_subset_of): New function.
1537         (is_subset_of_any): New function.
1538         (is_or_set_subset_of): New function.
1539         (is_and_set_subset_of): New function.
1540         (is_norm_cond_subset_of): New function.
1541         (is_pred_expr_subset_of): New function.
1542         (is_pred_chain_subset_of): New function.
1543         (is_included_in): New function.
1544         (is_superset_of): New function.
1545         (find_uninit_use): New function.
1546         (warn_uninitialized_phi): New function.
1547         (compute_possibly_undefined_names): New function.
1548         (ssa_undefined_value_p): New function.
1549         (execute_late_warn_uninitialized): New function.
1550         * tree-ssa.c (ssa_undefined_value_p): Removed.
1551         (warn_uninit): Changed to extern.
1552         (warn_uninitialized_phi): Removed.
1553         (warn_uninitialized_vars): Changed to extern.
1554         (execute_late_warn_uninitialized): Removed
1555         * tree-flow.h: Add new prototypes.
1556         * timevar.def: Add new time variable.
1557         * Makefile.in: Add new build file.
1558
1559 2010-04-28  Uros Bizjak  <ubizjak@gmail.com>
1560
1561         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use gnu_unique_object
1562         type if available.
1563
1564 2010-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1565
1566         PR target/22224
1567         * config/alpha/osf5.h (ASM_OUTPUT_LOCAL): Redefine.
1568
1569 2010-04-28  Martin Jambor  <mjambor@suse.cz>
1570
1571         * cgraph.h (struct cgraph_node): New field indirect_calls.
1572         (struct cgraph_indirect_call_info): New type.
1573         (struct cgraph_edge): Removed field indirect_call. New fields
1574         indirect_info, indirect_inlining_edge and indirect_unknown_callee.
1575         (cgraph_create_indirect_edge): Declare.
1576         (cgraph_make_edge_direct): Likewise.
1577         (enum LTO_cgraph_tags): New item LTO_cgraph_indirect_edge.
1578         * ipa-prop.h (struct ipa_param_call_note): Removed.
1579         (struct ipa_node_params): Removed field param_calls.
1580         (ipa_create_all_structures_for_iinln): Declare.
1581         * cgraph.c: Described indirect edges and uids in initial comment.
1582         (cgraph_add_edge_to_call_site_hash): New function.
1583         (cgraph_edge): Search also among the indirect edges, use
1584         cgraph_add_edge_to_call_site_hash to add edges to the call site hash.
1585         (cgraph_set_call_stmt): Possibly turn an indirect edge into a direct
1586         one, use cgraph_add_edge_to_call_site_hash to add edges to the call
1587         site hash.
1588         (initialize_inline_failed): Assign a reason to indirect edges.
1589         (cgraph_create_edge_1): New function.
1590         (cgraph_create_edge): Moved some functionality to
1591         cgraph_create_edge_1.
1592         (cgraph_create_indirect_edge): New function.
1593         (cgraph_edge_remove_callee): Add an assert checking for
1594         non-indirectness.
1595         (cgraph_edge_remove_caller): Special-case indirect edges.
1596         (cgraph_remove_edge): Likewise.
1597         (cgraph_set_edge_callee): New function.
1598         (cgraph_redirect_edge_callee): Use cgraph_set_edge_callee.
1599         (cgraph_make_edge_direct): New function.
1600         (cgraph_update_edges_for_call_stmt_node): Do nothing only when also
1601         the declaration of the call statement matches.
1602         (cgraph_node_remove_callees): Special-case indirect edges.
1603         (cgraph_clone_edge): Likewise.
1604         (cgraph_clone_node): Clone also the indirect edges.
1605         (dump_cgraph_node): Dump indirect_inlining_edge flag instead of
1606         indirect_call, dump count of indirect_calls edges.
1607         * ipa-prop.c (iinlining_processed_edges): New variable.
1608         (ipa_note_param_call): Create indirect edges instead of
1609         creating notes.  New parameter node.
1610         (ipa_analyze_call_uses): New parameter node, pass it on to
1611         ipa_note_param_call.
1612         (ipa_analyze_stmt_uses): Likewise.
1613         (ipa_analyze_params_uses): Pass node to ipa_analyze_stmt_uses.
1614         (print_edge_addition_message): Work on edges rather than on notes.
1615         (update_call_notes_after_inlining): Likewise, renamed to
1616         update_indirect_edges_after_inlining.
1617         (ipa_create_all_structures_for_iinln): New function.
1618         (ipa_free_node_params_substructures): Do not free notes.
1619         (ipa_edge_duplication_hook): Propagate bits within
1620         iinlining_processed_edges bitmap.
1621         (ipa_node_duplication_hook): Do not duplicate notes.
1622         (free_all_ipa_structures_after_ipa_cp): Renamed to
1623         ipa_free_all_structures_after_ipa_cp.
1624         (free_all_ipa_structures_after_iinln): Renamed to
1625         ipa_free_all_structures_after_iinln.
1626         (ipa_write_param_call_note): Removed.
1627         (ipa_read_param_call_note): Removed.
1628         (ipa_write_indirect_edge_info): New function.
1629         (ipa_read_indirect_edge_info): Likewise.
1630         (ipa_write_node_info): Do not stream notes, do stream information
1631         in indirect edges.
1632         (ipa_read_node_info): Likewise.
1633         (lto_ipa_fixup_call_notes): Removed.
1634         * ipa-cp.c (pass_ipa_cp): Set stmt_fixup to NULL.
1635         * ipa-inline.c (pass_ipa_inline): Likewise.
1636         * cgraphunit.c (verify_cgraph_node): Check also indirect edges.
1637         * cif-code.def (INDIRECT_UNKNOWN_CALL): New reason.
1638         * tree-inline.c (copy_bb): Removed an unnecessary double check for
1639         is_gimple_call.
1640         * tree-inline.c (get_indirect_callee_fndecl): Do not consider indirect
1641         edges.
1642         * lto-cgraph.c (output_outgoing_cgraph_edges): New function.
1643         (output_cgraph): Stream also indirect edges.
1644         (lto_output_edge): Added capability to stream indirect edges.
1645         (input_edge): Likewise.
1646         (input_cgraph_1): Likewise.
1647         * lto-streamer-in.c (fixup_call_stmt_edges_1): Fixup also statements
1648         of indirect edges.
1649
1650 2010-04-28  Richard Guenther  <rguenther@suse.de>
1651
1652         PR tree-optimization/43879
1653         PR tree-optimization/43909
1654         * tree-ssa-structalias.c (struct variable_info): Add
1655         only_restrict_pointers flag.
1656         (new_var_info): Initialize it.  Increment stats.total_vars here.
1657         (create_function_info_for): Do not increment stats.total_vars here.
1658         (get_function_part_constraint): Fix build with C++.
1659         (insert_into_field_list): Remove.
1660         (push_fields_onto_fieldstack): Properly merge fields.
1661         (create_variable_info_for): Split and simplify.
1662         (create_variable_info_for_1): New piece.
1663         (intra_create_variable_infos): Properly make restrict constraints
1664         from parameters.
1665
1666 2010-04-28  Richard Guenther  <rguenther@suse.de>
1667
1668         PR c++/43880
1669         * tree-inline.c (copy_bind_expr): Also copy bind expr vars value-exprs.
1670
1671 2010-04-27  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1672             Jan Hubicka <hubicka@ucw.cz>
1673
1674         * doc/invoke.texi (-Wsuggest-attribute=const,
1675         -Wsuggest-attribute=pure): Document.
1676         * ipa-pure-const.c: Include toplev.h, intl.h and opts.h.
1677         (function_always_visible_to_compiler_p,
1678         suggest_attribute, warn_function_pure, warn_function_const):
1679         New functions.
1680         (check_call): Improve debug info.
1681         (analyze_function): Do not check availability.
1682         (add_new_function): Check availability.
1683         (propagate): Output warnings.
1684         (skip_function_for_local_pure_const): New function.
1685         (local_pure_const): Use it; output warnings.
1686         * common.opt (Wsuggest-attribute=const,
1687         Wsuggest-attribute=pure): New.
1688
1689 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
1690
1691         * dwarf2out.c (def_cfa_1): After DW_CFA_def_cfa_expression
1692         force using DW_CFA_def_cfa instead of DW_CFA_def_cfa_register
1693         or DW_CFA_def_cfa_offset{,_sf}.
1694
1695 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
1696
1697         * tree.h: Fix truncated long macros.
1698
1699 2010-04-27  Kai Tietz  <kai.tietz@onevision.com>
1700
1701         * collect2.c (TARGET_64BIT): Redefine to target's default.
1702         * tlink.c: Likewise.
1703         * config/i386/cygming.h (USER_LABEL_PREFIX): Define
1704         dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
1705         * config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
1706         for underscoring __USER_LABEL_PREFIX__.
1707         * config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
1708         (SUB_LINK_ENTRY32): New.
1709         (SUB_LINK_ENTRY64): New.
1710         (LINK_SPEC): Replace entry point spec by SUB_LINK_ENTRY.
1711         * config/i386/mingw32 (SUB_LINK_ENTRY32): New.
1712         (SUB_LINK_ENTRY64): New.
1713         (SUB_LINK_ENTRY): New.
1714         (LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
1715         (DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
1716         x64 target is choosen.
1717         * config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
1718         * configure: Regenerated.
1719         * configure.ac (leading-mingw64-underscores): Option added.
1720
1721 2010-04-27  Jan Hubicka  <jh@suse.cz>
1722
1723         * doc/invoke.texi (-fipa-profile): Document.
1724         * opts.c (decode_options): Enable ipa-profile at -O1.
1725         * timevar.def (TV_IPA_PROFILE): Define.
1726         * common.opt (fipa-profile): Add.
1727         * cgraph.c (cgraph_clone_node): Set local flag and clear vtable method
1728         flag for clones.
1729         (cgraph_propagate_frequency): Handle only local ones.
1730         * tree-pass.h (pass_ipa_profile): Declare.
1731         * ipa-profile.c (gate_profile): Use flag_ipa_profile.
1732         (pass_ipa_profile): Use TV_IPA_PROFILE.
1733         * ipa.c (ipa_profile): New function.
1734         (gate_ipa_profile): Likewise.
1735         (pass_ipa_profile): New global variable.
1736         * passes.c (pass_ipa_profile): New.
1737
1738 2010-04-27  Nathan Froyd  <froydnj@codesourcery.com>
1739
1740         * config/arm/arm.c (arm_expand_builtin): Remove redundant declaration.
1741
1742 2010-04-27  Martin Jambor  <mjambor@suse.cz>
1743
1744         PR middle-end/43812
1745         * ipa.c (dissolve_same_comdat_group_list): New function.
1746         (function_and_variable_visibility): Call
1747         dissolve_same_comdat_group_list when comdat group contains external or
1748         newly local nodes.
1749         * cgraphunit.c (verify_cgraph_node): Verify that same_comdat_group
1750         lists are circular and that they contain only DECL_ONE_ONLY nodes.
1751
1752 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
1753
1754         * varasm.c (decode_addr_const): Handle special case of INDIRECT_REF.
1755         (const_hash_1) <VECTOR_CST>: New case.
1756         (compare_constant) <VECTOR_CST>: Likewise.
1757         <ADDR_EXPR>: Deal with LABEL_REFs.
1758         (copy_constant) <VECTOR_CST>: New case.
1759
1760 2010-04-27  Jan Hubicka  <jh@suse.cz>
1761
1762         * cgraph.c (cgraph_propagate_frequency): New function.
1763         * cgraph.h (cgraph_propagate_frequency): Declare.
1764         * ipa-inline.c (cgraph_clone_inlined_nodes): Call
1765         cgraph_propagate_frequency.
1766
1767 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
1768
1769         * unwind-dw2.c (_Unwind_DebugHook): Add used and noclone attributes.
1770
1771 2010-04-27  Bernd Schmidt  <bernds@codesourcery.com>
1772
1773         PR target/40657
1774         * config/arm/arm.c (thumb1_extra_regs_pushed): New function.
1775         (thumb1_expand_prologue, thumb1_output_function_prologue): Call it
1776         here to determine which regs to push and how much stack to reserve.
1777
1778 2010-04-27  Jie Zhang  <jie@codesourcery.com>
1779
1780         * doc/gimple.texi (gimple_statement_with_ops): Remove
1781         addresses_taken field.
1782         (gimple_statement_with_memory_ops): Likewise.
1783
1784 2010-04-27  Jan Hubicka  <jh@suse.cz>
1785
1786         * tree-inline.c (eni_inlining_weights): Remove.
1787         (estimate_num_insns): Special case more builtins.
1788
1789 2010-04-27  Shujing Zhao  <pearly.zhao@oracle.com>
1790
1791         PR c/32207
1792         * c-typeck.c (build_binary_op): Move forward check for comparison
1793         pointer with null pointer constant and adjust the diagnostic message.
1794
1795 2010-04-27  Dave Korn  <dave.korn.cygwin@gmail.com>
1796
1797         PR lto/42776
1798         * configure.ac (gcc_cv_as_section_has_align): Set if installed
1799         binutils supports extended .section directive needed by LTO, or
1800         warn if older binutils found.
1801         (LTO_BINARY_READER): New AC_SUBST'd variable.
1802         (LTO_USE_LIBELF): Likewise.
1803         * gcc/config.gcc (lto_binary_reader): New target-specific configure
1804         variable.
1805         * gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
1806         (LTO_USE_LIBELF): Likewise.
1807         * configure: Regenerate.
1808
1809         * collect2.c (is_elf): Rename from this ...
1810         (is_elf_or_coff): ... to this, and recognize and allow i386 COFF
1811          object files in addition to ELF-formatted ones.
1812         (scan_prog_file): Caller updated.  Also allow for LTO info marker
1813         symbol to be prefixed or not by an extra underscore.
1814
1815         * config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
1816         * config/i386/winnt.c: Also #include lto-streamer.h
1817         (i386_pe_asm_named_section): Specify 1-byte section alignment for
1818         LTO named sections.
1819         (i386_pe_asm_output_aligned_decl_common): Add comment.
1820         (i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
1821
1822 2010-04-27  Hans-Peter Nilsson  <hp@bitrange.com>
1823
1824         PR target/43889
1825         * config/mmix/mmix.md ("*divdi3_nonknuth", "*moddi3_nonknuth"):
1826         Add missing earlyclobber for second alternative.
1827
1828 2010-04-26  Bernd Schmidt  <bernds@codesourcery.com>
1829
1830         * df-problems.c (df_simulate_initialize_forwards): Set, don't clear,
1831         bits for artificial defs at the top of the block.
1832         * fwprop.c (single_def_use_enter_block): Don't call it.
1833
1834 2010-04-26  Jack Howarth <howarth@bromo.med.uc.edu>
1835
1836         PR 43715
1837         * gcc/configure.ac: Use "$gcc_cv_nm -g" on darwin
1838         instead of "$gcc_cv_objdump -T".
1839         Use "-undefined dynamic_lookup" on darwin.
1840         * gcc/configure: Regenerate.
1841
1842 2010-04-26  Jakub Jelinek  <jakub@redhat.com>
1843
1844         PR c/43893
1845         * c-omp.c (c_finish_omp_for): Handle also EQ_EXPR.
1846
1847 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
1848
1849         * c-parser.c (struct c_token): Move location field up.
1850         * c-tree.h (struct c_typespec): Move expr_const_operands field up.
1851         (struct c_declspecs): Convert typespec_word, storage_class, and
1852         default_int_p into bitfields.
1853         (struct c_declarator): Move loc field up.
1854
1855 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
1856
1857         * cfgloop.h (struct loop): Move can_be_parallel field up.
1858         * ipa-prop.h (struct ip_node_params): Move bitfields up.
1859         * tree-ssa-loop-ivopts.c (struct version_info): Move inv_id field
1860         down.
1861         (struct iv_cand): Convert pos field into a bitfield.
1862         * tree-vectorizer.h (struct _loop_vec_info): Move loop_line_number
1863         field up.
1864         (struct _stmt_vec_info): Shuffle fields for better packing.
1865
1866 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
1867
1868         * varasm.c (IN_NAMED_SECTION): Remove guard.
1869         * config/arm/unknown-elf.h (IN_NAMED_SECTION): Rename to...
1870         (IN_NAMED_SECTION_P): ...this.
1871         (ASM_OUTPUT_ALIGNED_BSS): Adjust for above renaming.
1872         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.
1873
1874 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
1875
1876         * gimplify.c (gimplify_cond_expr): Use THEN_ and ELSE_ local variables.
1877         Use VOID_TYPE_P for all void type tests.  Adjust TYPE variable instead
1878         of shadowing it.  Fix comments.
1879
1880 2010-04-26  Jan Hubicka  <jh@suse.cz>
1881
1882         * cgraph.c (cgraph_create_node): Set node frequency to normal.
1883         (cgraph_clone_node): Copy function frequency.
1884         * cgraph.h (node_frequency): New enum
1885         (struct cgraph_node): Add.
1886         * final.c (rest_of_clean_state): Update.
1887         * lto-cgraph.c (lto_output_node): Output node frequency.
1888         (input_overwrite_node): Input node frequency.
1889         * tre-ssa-loop-ivopts (computation_cost): Update.
1890         * lto-streamer-out.c (output_function): Do not output function
1891         frequency.
1892         * predict.c (maybe_hot_frequency_p): Update and handle functions
1893         executed once.
1894         (cgraph_maybe_hot_edge_p): Likewise; use cgraph frequency instead of
1895         attribute lookup.
1896         (probably_never_executed_bb_p, optimize_function_for_size_p): Update.
1897         (compute_function_frequency): Set noreturn functions to be executed
1898         once.
1899         (choose_function_section): Update.
1900         * lto-streamer-in.c (input_function): Do not input function frequency.
1901         * function.c (allocate_struct_function): Do not initialize function
1902         frequency.
1903         * function.h (function_frequency): Remove.
1904         (struct function): Remove function frequency.
1905         * ipa-profile.c (CGRAPH_NODE_FREQUENCY): Remove.
1906         (try_update): Update.
1907         * tree-inline.c (initialize_cfun): Do not update function frequency.
1908         * passes.c (pass_init_dump_file): Update.
1909         * i386.c (ix86_compute_frame_layout): Update.
1910         (ix86_pad_returns): Update.
1911
1912 2010-04-26  Jie Zhang  <jie@codesourcery.com>
1913
1914         PR tree-optimization/43833
1915         * tree-vrp.c (range_int_cst_p): New.
1916         (range_int_cst_singleton_p): New.
1917         (extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
1918         when both operands are constants.  Use range_int_cst_p in
1919         BIT_IOR_EXPR case.
1920
1921 2010-04-26  Jan Hubicka  <jh@suse.cz>
1922
1923         * cgraphunit.c (cgraph_copy_node_for_versioning): Fix profile updating.
1924
1925 2010-04-26  Richard Guenther  <rguenther@suse.de>
1926
1927         PR lto/43080
1928         * gimple.c (gimple_decl_printable_name): Deal gracefully
1929         with a NULL DECL_NAME.
1930
1931 2010-04-26  Richard Guenther  <rguenther@suse.de>
1932
1933         PR lto/42425
1934         * tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
1935         if emitting debug information and it is either a function
1936         or a namespace decl.
1937
1938 2010-04-26  Ira Rosen  <irar@il.ibm.com>
1939
1940         * tree-vectorizer.h (struct _stmt_vec_info): Add new field to
1941         determine if the statement is vectorizable, and a macro to access it.
1942         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
1943         Skip statements that can't be vectorized. If the analysis fails,
1944         mark the statement as unvectorizable if vectorizing basic block.
1945         (vect_compute_data_refs_alignment): Likewise.
1946         (vect_verify_datarefs_alignment): Skip statements marked as
1947         unvectorizable. Add print.
1948         (vect_analyze_group_access): Skip statements that can't be
1949         vectorized. If the analysis fails, mark the statement as
1950         unvectorizable if vectorizing basic block.
1951         (vect_analyze_data_ref_accesses, vect_analyze_data_refs): Likewise.
1952         * tree-vect-stmts.c (vectorizable_store): Fix the number of
1953         generated stmts for SLP.
1954         (new_stmt_vec_info): Initialize the new field.
1955         * tree-vect-slp.c (vect_build_slp_tree): Fail to vectorize
1956         statements marked as unvectorizable.
1957
1958 2010-04-25  Joseph Myers  <joseph@codesourcery.com>
1959
1960         * c-common.c (flag_isoc1x): New.
1961         (flag_isoc99): Update comment.
1962         * c-common.h (flag_isoc1x): New.
1963         (flag_isoc99): Update comment.
1964         * c-cppbuiltin.c (builtin_define_float_constants): Also define
1965         __<type>_DECIMAL_DIG__.
1966         * c-opts.c (set_std_c1x): New.
1967         (c_common_handle_option): Handle -std=c1x and -std=gnu1x.
1968         (set_std_c89, set_std_c99): Also set flag_isoc1x to 0.
1969         * c.opt (-std=c1x, -std=gnu1x): New options.
1970         * doc/cpp.texi: Mention -std=c1x.
1971         * doc/cppopts.texi (-std=c1x, -std=gnu1x): Document.
1972         * doc/extend.texi: Mention -std=c1x and -std=gnu1x.
1973         * doc/invoke.texi (-std=c1x, -std=gnu1x): Document.
1974         * doc/standards.texi: Mention C1X.
1975         * ginclude/float.h (FLT_DECIMAL_DIG, DBL_DECIMAL_DIG,
1976         LDBL_DECIMAL_DIG, FLT_HAS_SUBNORM, DBL_HAS_SUBNORM,
1977         LDBL_HAS_SUBNORM, FLT_TRUE_MIN, DBL_TRUE_MIN, LDBL_TRUE_MIN):
1978         Define for C1X.
1979
1980 2010-04-25  Uros Bizjak  <ubizjak@gmail.com>
1981
1982         * config/i386/gmon-sol2.c (_mcleanup): Change format string
1983         placeholder from 0x%x to %#x.
1984         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
1985         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
1986         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
1987         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
1988         * config/i386/i386.c (ix86_target_string): Ditto.
1989         (output_pic_addr_const): Ditto.
1990         (print_operand): Ditto.
1991
1992 2010-04-25  Paolo Bonzini  <bonzini@gnu.org>
1993
1994         * combine.c (find_split_point): Add third argument.  Use it
1995         to find nested multiply-accumulate instructions.  Adjust calls.
1996         (try_combine): Adjust call to find_split_point.
1997
1998 2010-04-24  Gerald Pfeifer  <gerald@pfeifer.com>
1999
2000         * doc/contrib.texi (Contributors): Add Dodji Seketeli.
2001
2002 2010-04-24  Bernd Schmidt  <bernds@codesourcery.com>
2003
2004         PR tree-optimization/41442
2005         * fold-const.c (merge_truthop_with_opposite_arm): New function.
2006         (fold_binary_loc): Call it.
2007
2008 2010-04-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2009
2010         * toplev.c (general_init): Set default for fdiagnostics-show-option.
2011         * opts.c (common_handle_option): Allow disabling it.
2012         * common.opt (fdiagnostics-show-option): Add Var. Enabled by default.
2013
2014 2010-04-23  Eric Botcazou  <ebotcazou@adacore.com>
2015
2016         * expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: Only use conversion
2017         between modes if both types are integral.
2018
2019 2010-04-23  Richard Guenther  <rguenther@suse.de>
2020
2021         PR tree-optimization/43572
2022         * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.
2023
2024 2010-04-23  Richard Guenther  <rguenther@suse.de>
2025
2026         PR lto/43455
2027         * tree-inline.c (tree_can_inline_p): Also check compatibility
2028         of return types.
2029
2030 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2031
2032         PR tree-optimization/43846
2033         * tree-sra.c (struct access): New flag grp_assignment_read.
2034         (build_accesses_from_assign): Set grp_assignment_read.
2035         (sort_and_splice_var_accesses): Propagate grp_assignment_read.
2036         (enum mark_read_status): New type.
2037         (analyze_access_subtree): Propagate grp_assignment_read, create
2038         accesses also if both direct_read and root->grp_assignment_read.
2039
2040 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2041
2042         PR middle-end/43835
2043         * tree-sra.c (ipa_sra_preliminary_function_checks): Check that the
2044         function does not have type attributes.
2045
2046 2010-04-23  Richard Guenther  <rguenther@suse.de>
2047
2048         PR lto/42653
2049         * tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
2050         of FUNCTION_DECLs.
2051
2052 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2053
2054         * sese.h (create_if_region_on_edge): Remove.
2055
2056         * sese.c (create_if_region_on_edge): Make static.
2057
2058         * tree-inline.c: Do not include ggc.h.
2059
2060         * expr.c: Do not include ggc.h.
2061
2062         * Makefile.in (tree-inline.o, expr.o): Remove $(GGC_H) from
2063         dependencies.
2064
2065 2010-04-22  Kaz Kojima  <kkojima@gcc.gnu.org>
2066
2067         PR target/43744
2068         * config/sh/sh.c (find_barrier): Don't emit a constant pool
2069         in the middle of insns for casesi_worker_2.
2070
2071 2010-04-22  David Edelsohn  <edelsohn@gnu.org>
2072
2073         * config/rs6000/x-aix: Override LDFLAGS for all COMPILERS.
2074
2075 2010-04-22  Ira Rosen  <irar@il.ibm.com>
2076
2077         PR tree-optimization/43842
2078         * tree-vect-loop.c (vect_create_epilog_for_reduction): Handle
2079         loop unrolling in update of exit phis. Fix comment.
2080         * tree-vect-slp.c (vect_analyze_slp): Check that there are at
2081         least two reduction statements in the loop before starting SLP
2082         analysis.
2083
2084 2010-04-22  Nick Clifton  <nickc@redhat.com>
2085
2086         * config/stormy16/stormy16-lib2.c (__ucmpsi2): Fix thinko.
2087
2088 2010-04-22  Alexander Monakov  <amonakov@ispras.ru>
2089
2090         * tree-ssa-reassoc.c (eliminate_plus_minus_pair): Handle BIT_NOT_EXPR
2091         to simplify a + ~a.
2092
2093 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2094
2095         * tree-parloops.c (loop_parallel_p): New argument
2096         parloop_obstack.  Pass it down.
2097         (parallelize_loops): New variable parloop_obstack.  Initialize it,
2098         pass it down, free it.
2099
2100         * tree-loop-linear.c (linear_transform_loops): Pass down
2101         lambda_obstack.
2102
2103         * tree-data-ref.h (lambda_compute_access_matrices): New argument
2104         of type struct obstack *.
2105
2106         * tree-data-ref.c (analyze_subscript_affine_affine): New variable
2107         scratch_obstack.  Initialize it, pass down, free it.
2108
2109         * lambda.h (lambda_loop_new): Remove.
2110         (lambda_matrix_new, lambda_matrix_inverse)
2111         (lambda_trans_matrix_new, lambda_trans_matrix_inverse): New
2112         argument of type struct obstack *.
2113
2114         * lambda-trans.c (lambda_trans_matrix_new): New argument
2115         lambda_obstack.  Pass it down, use obstack allocation for ret.
2116         (lambda_trans_matrix_inverse): New argument lambda_obstack.  Pass
2117         it down.
2118
2119         * lambda-mat.c (lambda_matrix_get_column)
2120         (lambda_matrix_project_to_null): Remove.
2121         (lambda_matrix_new): New argument lambda_obstack.  Use obstack
2122         allocation for mat.
2123         (lambda_matrix_inverse_hard, lambda_matrix_inverse): New argument
2124         lambda_obstack.
2125
2126         * lambda-code.c (lambda_loop_new): New function.
2127         (lambda_lattice_new, compute_nest_using_fourier_motzkin)
2128         (lambda_compute_auxillary_space, lambda_compute_target_space)
2129         (lambda_loopnest_transform, gcc_loop_to_lambda_loop)
2130         (lambda_loopnest_to_gcc_loopnest): Pass down lambda_obstack.
2131         (build_access_matrix): New argument lambda_obstack.  Use obstack
2132         allocation for am.
2133         (lambda_compute_step_signs, lambda_compute_access_matrices): New
2134         argument lambda_obstack.  Pass it down.
2135
2136 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2137
2138         * optabs.h (expand_widening_mult): Declare.
2139
2140 2010-04-22  Richard Guenther  <rguenther@suse.de>
2141
2142         PR tree-optimization/43845
2143         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Properly
2144         lookup the CALL_EXPR function and arguments.
2145
2146 2010-04-22  Nick Clifton  <nickc@redhat.com>
2147
2148         * config/stormy16/stormy16.c
2149         (xstormy16_asm_output_aligned_common): Handle a NULL decl parameter.
2150         * config/stormy16/stormy16.h: Tidy up formatting.
2151         (DONT_USE_BUILTIN_SETJMP): Remove definition.
2152         * config/stormy16/stormy16.c (cbranchsi4): Delete pattern.
2153         (ineqbranchsi): Delete pattern.
2154         * config/stormy16/stormy16-lib2-ucmpsi2.c: New file.
2155         * config/stormy16/stormy16-lib2.c (__ucmpsi2): New function.
2156         * config/stormy16/t-stormy16 (LIB2FUNCS_EXTRA): Add
2157         stormy16-lib2-ucmpsi2.c.
2158
2159 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2160
2161         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and
2162         df_simulate_find_noclobber_defs as appropriate.  Keep track of an
2163         extra set merge_set_noclobber, and use it to relax the final test
2164         slightly.
2165         * df.h (df_simulate_find_noclobber_defs): Declare.
2166         * df-problems.c (df_simulate_find_defs): Don't ignore partial or
2167         conditional defs.
2168         (df_simulate_find_noclobber_defs): New function.
2169
2170 2010-04-22  Uros Bizjak  <ubizjak@gmail.com>
2171
2172         * config/i386/i386.md: Use {} around multi-line preparation statements.
2173
2174 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2175
2176         * c-tree.h (push_init_level, pop_init_level, set_init_index)
2177         (process_init_element): New argument of type struct obstack *.
2178
2179         * c-typeck.c (push_init_level, pop_init_level, set_designator)
2180         (set_init_index, set_init_label, set_nonincremental_init)
2181         (set_nonincremental_init_from_string, find_init_member)
2182         (output_init_element, output_pending_init_elements)
2183         (process_init_element): New argument braced_init_obstack.  Pass it
2184         down.
2185         (push_range_stack, add_pending_init): New argument
2186         braced_init_obstack.  Use obstack allocation.
2187
2188         * c-parser.c (c_parser_initelt, c_parser_initval): New argument
2189         braced_init_obstack.  Pass it down.
2190         (c_parser_braced_init): New variables ret, braced_init_obstack.
2191         Initialize obstack, pass it down and finally free it.
2192
2193 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2194
2195         PR middle-end/29274
2196         * tree-pass.h (pass_optimize_widening_mul): Declare.
2197         * tree-ssa-math-opts.c (execute_optimize_widening_mul,
2198         gate_optimize_widening_mul): New static functions.
2199         (pass_optimize_widening_mul): New.
2200         * expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: New case.
2201         <case MULT_EXPR>: Remove support for widening multiplies.
2202         * tree.def (WIDEN_MULT_EXPR): Tweak comment.
2203         * cfgexpand.c (expand_debug_expr) <case WIDEN_MULT_EXPR>: Use
2204         simplify_gen_unary rather than directly building extensions.
2205         * tree-cfg.c (verify_gimple_assign_binary): Add tests for
2206         WIDEN_MULT_EXPR.
2207         * expmed.c (expand_widening_mult): New function.
2208         * passes.c (init_optimization_passes): Add pass_optimize_widening_mul.
2209
2210 2010-04-21  Jan Hubicka  <jh@suse.cz>
2211
2212         * timevar.def (TV_WHOPR_WPA_FIXUP): Remove.
2213         * lto-section-in.c (lto_section_name): Remove wpa_fixup.
2214         * lto-wpa-fixup.c: Remove.
2215         * Makefile.in (lto-wpa-fixup.o): Remove.
2216         * passes.c (init_optimization_passes): Remove pass_ipa_lto_wpa_fixup.
2217         (execute_all_ipa_transforms): Set cgraph_state to CGRAPH_STATE_IPA_SSA.
2218         * lto-streamer.c (lto_get_section_name): Remove wpa_fixup section.
2219
2220 2010-04-21  Jan Hubicka  <jh@suse.cz>
2221
2222         * tree-pass.h (ipa_opt_pass_d): Rename function_read_summary;
2223         add write_optimization_summary, read_optimization_summary.
2224         (ipa_write_summaries_of_cgraph_node_set): Remove.
2225         (ipa_write_optimization_summaries): Declare.
2226         (ipa_read_optimization_summaries): Declare.
2227         * ipa-cp.c (pass_ipa_cp): Update.
2228         * ipa-reference.c (pass_ipa_reference): Update.
2229         * ipa-pure-const.c (pass_ipa_pure_const): Update.
2230         * lto-streamer-out.c (pass_ipa_lto_gimple, pass_ipa_lto_finish):
2231         Update.
2232         * ipa-inline.c (pass_ipa_inline): Update.
2233         * ipa.c (pass_ipa_whole_program): Update.
2234         * lto-wpa-fixup.c (pass_ipa_lto_wpa_fixup): Update.
2235         * passes.c (ipa_write_summaries_1): Do not test wpa.
2236         (ipa_write_optimization_summaries_1): New.
2237         (ipa_write_optimization_summaries): New.
2238         (ipa_read_summaries): Do not test ltrans.
2239         (ipa_read_optimization_summaries_1): New.
2240         (ipa_read_optimization_summaries): New.
2241
2242 2010-04-21  Jan Hubicka  <jh@suse.cz>
2243
2244         * lto-cgraph.c (lto_output_node): Do not output comdat groups
2245         for boundary nodes.
2246         (output_cgraph): Do not arrange comdat groups for boundary nodes.
2247
2248 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2249
2250         PR debug/40040
2251         * dwarf2out.c (add_name_and_src_coords_attributes): Add
2252         DW_AT_{,MIPS_}linkage_name even for Fortran decls.
2253
2254 2010-04-21  Jan Hubicka  <jh@suse.cz>
2255
2256         * ipa-prop.c (ipa_edge_removal_hook): Check for bounds.
2257
2258 2010-04-21  Jan Hubicka  <jh@suse.cz>
2259
2260         * varpool.c (decide_is_variable_needed): Variable is always needed
2261         during ltrans.
2262
2263 2010-04-21  Jan Hubicka  <jh@suse.cz>
2264
2265         * opts.c (decode_options): Enable pure-const pass for whopr.
2266
2267 2010-04-21  Jan Hubicka  <jh@suse.cz>
2268
2269         * cgraph.c (dump_cgraph_node): Dump also assembler name.
2270         * ipa-inline.c (cgraph_decide_inlining_of_small_functions): Do not ice
2271         at WPA dumping.
2272         (cgraph_decide_inlining): Do not expect callee to be removed in all
2273         cases.
2274
2275 2010-04-21  Eric B. Weddington  <eric.weddington@atmel.com>
2276
2277         * config/avr/avr-devices.c (avr_mcu_types): Add missing comma.
2278
2279 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
2280
2281         * config/i386/i386.md (x86_shrd): Add athlon_decode and
2282         amdfam10_decode attributes.
2283
2284 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2285
2286         PR middle-end/43570
2287         * omp-low.c (scan_sharing_clauses): Don't scan_omp_op
2288         OMP_CLAUSE_DECL for OMP_CLAUSE_COPYPRIVATE.
2289         (lower_copyprivate_clauses): Use private var in outer
2290         context instead of original var.  Make sure the types
2291         are correct for VLAs.
2292
2293 2010-04-21  Richard Guenther  <rguenther@suse.de>
2294
2295         * tree-ssa-structalias.c (do_ds_constraint): Avoid escaping
2296         to non-pointer objects.
2297
2298 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
2299
2300         * dwarf2out.c (add_var_loc_to_decl): Add LABEL argument.  Drop
2301         last chain entry if it starts with the still current label.
2302         (add_location_or_const_value_attribute): Check that
2303         loc_list->first->next is NULL instead of comparing ->first with ->last.
2304         (dwarf2out_var_location): Pass last_label resp. last_postcall_label
2305         to add_var_loc_to_decl.
2306
2307         * dwarf2out.c (output_call_frame_info): For dw_cie_version
2308         >= 4 add also address size and segment size fields into CIE header.
2309
2310         * unwind-dw2.c (extract_cie_info): Handle CIE version 4, as
2311         long as address size is the same as sizeof (void *) and
2312         segment size is 0.
2313         * unwind-dw2-fde.c (get_cie_encoding): Likewise.  If
2314         address size or segment size is unexpected, return DW_EH_PE_omit.
2315         (classify_object_over_fdes): If get_cie_encoding returned
2316         DW_EH_PE_omit, return -1.
2317         (init_object): If classify_object_over_fdes returned -1,
2318         pretend there were no FDEs at all.
2319
2320 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
2321
2322         * config/i386/i386.md (bswap<mode>2): Macroize expander from
2323         bswap{si,di}2 using SWI48 mode iterator.
2324         (*bswap<mode>2_movbe): Macroize insn from *bswap{si,di}_movbe using
2325         SWI48 mode iterator.  Set type attribute of bswap insn to bitmanip,
2326         set modrm attribute of bswap insn to 0 and remove length attribute.
2327         (*bswap<mode>2_1): Macroize insn from *bswap{si,di}_1 using SWI48 mode
2328         iterator.  Set type attribute to bitmanip, set modrm attribute to 0,
2329         set mode attribute to <MODE> and remove length attribute.
2330
2331 2010-04-20  James E. Wilson  <wilson@codesourcery.com>
2332
2333         PR rtl-optimization/43520
2334         * ira-lives.c (ira_implicitly_set_insn_hard_regs): Exclude classes with
2335         zero available registers.
2336
2337 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2338
2339         * builtins.c (fold_builtin_cproj): Fold more cases.
2340
2341 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2342
2343         * builtins.c (build_complex_cproj, fold_builtin_cproj): New.
2344         (fold_builtin_1): Fold builtin cproj.
2345         * builtins.def (BUILT_IN_CPROJ, BUILT_IN_CPROJF, BUILT_IN_CPROJL):
2346         Use ATTR_CONST_NOTHROW_LIST.
2347
2348 2010-04-20  Uros Bizjak  <ubizjak@gmail.com>
2349
2350         * config/i386/i386.md (ffs<mode>2): Macroize expander from ffs_cmove
2351         and ffsdi2 using SWI48 mode iterator.  Expand SImode insn through
2352         ffsi2_no_cmove for !TARGET_CMOVE.
2353         (ffssi2_no_cmove): Rename from *ffs_no_cmove.  Make public.
2354         (ffssi2): Remove expander.
2355         (*ffs<mode>_1): Macroize insn from *ffs{si,di} using SWI48
2356         mode iterator.
2357         (ctz<mode>2): Ditto from ctz{si,di}2.
2358         (clz<mode>2): Macroize expander from ctz{hi,si,di}2 using SWI248
2359         mode iterator.
2360         (clz<mode>2_abm): Macroize insn from clz{hi,si,di}2_abm using SWI248
2361         mode iterator.
2362
2363 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
2364
2365         * dwarf2out.c (AT_linkage_name): Define.
2366         (clone_as_declaration): Handle DW_AT_linkage_name.
2367         (add_name_and_src_coords_attributes): Use AT_linkage_name instead
2368         of DW_AT_MIPS_linkage_name.
2369         (move_linkage_attr): Likewise.
2370         (dwarf2out_finish): Likewise.
2371
2372 2010-04-20  Xinliang David Li  <davidxl@gcc.gnu.org>
2373
2374         PR middle-end/41952
2375         * fold-const.c (fold_comparison): New folding rule.
2376
2377 2010-04-20  Anatoly Sokolov  <aesok@post.ru>
2378
2379         * double-int.h (double_int_setbit): Declare.
2380         * double-int.c (double_int_setbit): New function.
2381         * rtl.h (immed_double_int_const): Declare.
2382         * emit-rtl.c (immed_double_int_const): New function.
2383         * builtins.c (expand_builtin_signbit): Clean up, use double_int_*
2384         and immed_double_int_const functions.
2385         * optabs.c (expand_absneg_bit, expand_copysign_absneg,
2386         expand_copysign_bit):  (Ditto.).
2387         * simplify-rtx.c (simplify_binary_operation_1): (Ditto.).
2388         * tree-ssa-address.c (addr_for_mem_ref): (Ditto.).
2389         * dojump.c (prefer_and_bit_test): (Ditto.).
2390         * expr.c (convert_modes, reduce_to_bit_field_precision,
2391         const_vector_from_tree): (Ditto.).
2392         * expmed.c (mask_rtx, lshift_value): (Ditto.).
2393
2394 2010-04-20  Jan Hubicka  <jh@suse.cz>
2395
2396         * cgraph.c (cgraph_remove_node): Kill bodies in other partitoin.
2397         (dump_cgraph_node): Dump new flags.
2398         * cgraph.h (struct cgraph_node): Add flags
2399         reachable_from_other_partition and in_other_partition.
2400         (cgraph_can_remove_if_no_direct_calls_p): Functions used by
2401         other partition can not be removed.
2402         * cgraphunit.c (cgraph_mark_functions_to_output): Functions used by
2403         the other partition must be output; silence sanity checking on
2404         leaking functions bodies from other paritition.
2405         * lto-cgraph.c (reachable_from_other_partition_p): New function.
2406         (lto_output_node): Output new flags; do not sanity check that inline
2407         clones are output; drop lto_forced_extern_inline_p code; do not mock
2408         visibility flags at partition boundaries.
2409         (add_node_to): New function.
2410         (output_cgraph): Use it to sort functions so masters appear before
2411         clones.
2412         (input_overwrite_node): Input new flags.
2413         * passes.c (ipa_write_summaries): Do not call
2414         lto_new_extern_inline_states.
2415         * lto-section-out.c (forced_extern_inline,
2416         lto_new_extern_inline_states lto_delete_extern_inline_states,
2417         lto_force_functions_extern_inline, lto_forced_extern_inline_p): Kill.
2418         * lto-streamer.h (lto_new_extern_inline_states,
2419         * lto_delete_extern_inline_states, lto_force_functions_extern_inline,
2420         lto_forced_extern_inline_p): Kill.
2421
2422 2010-04-20  Richard Guenther  <rguenther@suse.de>
2423
2424         * tree-ssa-structalias.c (do_sd_constraint): Add edges only
2425         from vars that can have pointers.
2426         (process_constraint): Dump useless constraints.
2427
2428 2010-04-20  Richard Guenther  <rguenther@suse.de>
2429
2430         * tree-ssa-structalias.c (do_structure_copy): Properly handle DEREF.
2431         (dump_sa_points_to_info): Remove asserts.
2432         (init_base_vars): nothing_id isn't an escape point nor does it
2433         have pointers.
2434
2435 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
2436
2437         * tree.h (TYPE_REF_IS_RVALUE): Define.
2438         * dwarf2out.c (attr_checksum_ordered, is_type_die, is_comdat_die,
2439         should_move_die_to_comdat, prune_unused_types_walk): Handle
2440         DW_TAG_rvalue_reference_type like DW_TAG_reference_type.
2441         (modified_type_die, gen_reference_type_die): Emit
2442         DW_TAG_rvalue_reference_type instead of DW_TAG_reference_type
2443         if TYPE_REF_IS_RVALUE and -gdwarf-4.
2444
2445 2010-04-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2446
2447         PR target/43635
2448         * config/s390/s390.c (s390_emit_call): Turn direct into indirect
2449         calls for -fpic -m31 if they have been sibcall optimized.
2450
2451 2010-04-19  James E. Wilson  <wilson@codesourcery.com>
2452
2453         * config/ia64/ia64.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Make
2454         ar.lc fixed and call-used.
2455
2456         * config/ia64/ia64.c (TARGET_INVALID_WITHIN_DOLOOP): Define.
2457
2458 2010-04-19  Jan Hubicka  <jh@suse.cz>
2459
2460         * opts.c (decode_options): Disable whpr incompatible passes.
2461         * lto/lto.c (lto_1_to_1_map): Skip clones.
2462         (read_cgraph_and_symbols): Do not mark everything as needed.
2463         (do_whole_program_analysis): Do map only after optimizing;
2464         set proper cgraph_state; use passmanager.
2465
2466 2010-04-19  DJ Delorie  <dj@redhat.com>
2467
2468         * cfgexpand.c (expand_debug_expr): Check for mismatched modes in
2469         POINTER_PLUS_EXPR and fix them.
2470
2471 2010-04-19  Eric B. Weddington  <eric.weddington@atmel.com>
2472
2473         * config/avr/avr-devices.c (avr_mcu_types): Add support for new
2474         devices atmega644pa, attiny2313a, attiny24a, attiny261a, attiny4313,
2475         attiny44a, attiny861a, atmega16a, atmega168a, atmega164a, atmega165a,
2476         atmega169a, atmega169pa, atmega16hva2, atmega324a, atmega324pa,
2477         atmega325a, atmega3250a, atmega328, atmega329a, atmega329pa,
2478         atmega3290a, atmega48a, atmega644a, atmega645a, atmega645p,
2479         atmega6450a, atmega6450p, atmega649a, atmega649p, atmega6490a,
2480         atmega6490p, atmega64hve, atmega88a, atmega88pa, attiny461a, attiny84a,
2481         m3000. Remove support for devices atmega8m1, atmega8c1, atmega16c1,
2482         atmega4hvd, atmega8hvd, attiny327, m3000f, m3000s, m3001b.
2483         * config/avr/t-avr.c (MULTILIB_MATCHES): Same.
2484
2485 2010-04-19  Eric Botcazou  <ebotcazou@adacore.com>
2486
2487         * ifcvt.c (noce_try_cmove_arith): Fix long lines.
2488         (check_cond_move_block): Likewise.
2489         (cond_move_process_if_block): Likewise.
2490         (noce_find_if_block): Improve formatting.
2491         (find_if_header): Pass 0 to memset and tweak conditions.
2492         (cond_exec_find_if_block): Fix long lines and tweak conditions.
2493
2494 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2495
2496         * dwarf2out.c (lower_bound_default): For DW_LANG_Python return 0
2497         for -gdwarf-4.
2498
2499         PR middle-end/43337
2500         * tree-nested.c (convert_nonlocal_omp_clauses): OMP_CLAUSE_PRIVATE
2501         with non-local decl doesn't need chain.
2502
2503 2010-04-19  Vladimir Makarov  <vmakarov@redhat.com>
2504
2505         * ira-color.c (allocno_reload_assign): Avoid accumulating
2506         reload registers in ALLOCNO_TOTAL_CONFLICT_HARD_REGS.
2507
2508 2010-04-19  Martin Jambor  <mjambor@suse.cz>
2509
2510         * gimple.h (create_tmp_reg): Declare.
2511         * gimplify.c (create_tmp_reg): New function.
2512         (gimplify_return_expr): Use create_tmp_reg.
2513         (gimplify_omp_atomic): Likewise.
2514         (gimple_regimplify_operands): Likewise.
2515         * tree-dfa.c (make_rename_temp): Likewise.
2516         * tree-predcom.c (predcom_tmp_var): Likewise.
2517         (reassociate_to_the_same_stmt): Likewise.
2518         * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
2519         (get_replaced_param_substitute): Likewise.
2520         * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
2521         * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
2522         * tree-ssa-pre.c (get_representative_for): Likewise.
2523         (create_expression_by_pieces): Likewise.
2524         * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
2525         (create_tailcall_accumulator): Likewise.
2526
2527 2010-04-19  Martin Jambor  <mjambor@suse.cz>
2528
2529         * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
2530         new_stmt.
2531         (cgraph_materialize_all_clones): Assert !need_ssa_update_p.
2532
2533 2010-04-19  Richard Guenther  <rguenther@suse.de>
2534
2535         PR tree-optimization/43796
2536         * tree-vrp.c (adjust_range_with_scev): Lookup init and step
2537         from SCEV in the lattice.
2538         (vrp_visit_phi_node): Dump change.
2539
2540 2010-04-19  Richard Guenther  <rguenther@suse.de>
2541
2542         * configure.ac: Fix quoting around elf_getshstrndx ABI check.
2543         * configure: Re-generated.
2544
2545 2010-04-19  Richard Guenther  <rguenther@suse.de>
2546
2547         PR tree-optimization/43783
2548         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
2549         constant ARRAY_REF operands two and three if possible.
2550
2551 2010-04-19  Uros Bizjak  <ubizjak@gmail.com>
2552
2553         PR target/43766
2554         * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.
2555
2556 2010-04-19  Jie Zhang  <jie@codesourcery.com>
2557
2558         PR target/43662
2559         * reginfo.c (reinit_regs): Set caller_save_initialized_p to false.
2560
2561 2010-04-19  Ira Rosen  <irar@il.ibm.com>
2562
2563         PR tree-optimization/37027
2564         * tree-vectorizer.h (struct _loop_vec_info): Add new field reductions
2565         and macro to access it.
2566         (vectorizable_reduction): Add argument.
2567         (vect_get_slp_defs): Likewise.
2568         * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Collect reduction
2569         statements for possible use in SLP.
2570         (new_loop_vec_info): Initialize LOOP_VINFO_REDUCTIONS.
2571         (destroy_loop_vec_info): Free LOOP_VINFO_REDUCTIONS.
2572         (vect_create_epilog_for_reduction): Handle SLP. Modify documentation,
2573         add new argument.
2574         (vectorizable_reduction): Likewise.
2575         * tree-vect-stmts.c (vect_get_vec_defs): Update call to
2576         vect_get_slp_defs.
2577         (vectorizable_type_demotion, vectorizable_type_promotion,
2578         vectorizable_store): Likewise.
2579         (vect_analyze_stmt): Update call to vectorizable_reduction.
2580         (vect_transform_stmt): Likewise.
2581         * tree-vect-slp.c (vect_get_and_check_slp_defs): Handle reduction.
2582         (vect_build_slp_tree): Fix indentation. Check that there are no loads
2583         from different interleaving chains in same node.
2584         (vect_slp_rearrange_stmts): New function.
2585         (vect_supported_load_permutation_p): Allow load permutations for
2586         reductions. Call vect_slp_rearrange_stmts() to rearrange statements
2587         inside SLP nodes if necessary.
2588         (vect_analyze_slp_instance): Handle reductions.
2589         (vect_analyze_slp): Try to build SLP instances originating from groups
2590         of reductions.
2591         (vect_detect_hybrid_slp_stmts): Skip reduction statements.
2592         (vect_get_constant_vectors): Create initial vectors for reductions
2593         according to reduction code. Add new argument.
2594         (vect_get_slp_defs): Add new argument, pass it to
2595         vect_get_constant_vectors.
2596         (vect_schedule_slp_instance): Remove SLP tree root statements.
2597
2598 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2599
2600         * tree.h (ENUM_IS_SCOPED): Define.
2601         * dwarf2out.c (gen_enumeration_type_die): Add DW_AT_enum_class
2602         for ENUM_IS_SCOPED enums.
2603
2604 2010-04-18  Eric Botcazou  <ebotcazou@adacore.com>
2605
2606         * fold-const.c (fold_comparison): Use ssizetype.
2607         * gimple-fold.c (maybe_fold_offset_to_array_ref): Likewise.
2608         * ipa-prop.c (ipa_modify_call_arguments): Use sizetype.
2609         * tree-loop-distribution.c (build_size_arg_loc): Likewise.
2610         * tree-object-size.c (compute_object_sizes): Use size_type_node.
2611
2612         * tree.h (initialize_sizetypes): Remove parameter.
2613         (build_common_tree_nodes): Remove second parameter.
2614         * stor-layout.c (initialize_sizetypes): Remove parameter.
2615         Always create an unsigned type.
2616         (set_sizetype): Assert that the passed type is unsigned and simplify.
2617         * tree.c (build_common_tree_nodes): Remove second parameter.
2618         Adjust call to initialize_sizetypes.
2619         * c-decl.c (c_init_decl_processing): Remove second argument in call to
2620         build_common_tree_nodes.
2621
2622 2010-04-18  Matthias Klose  <doko@ubuntu.com>
2623
2624         * gcc.c (main): Search for liblto_plugin.so with mode R_OK.
2625
2626 2010-04-18  Ira Rosen  <irar@il.ibm.com>
2627
2628         PR tree-optimization/43771
2629         * tree-vect-slp.c (vect_supported_load_permutation_p): Check that
2630         load permutation doesn't have gaps.
2631
2632 2010-04-18  Jan Hubicka  <jh@suse.cz>
2633
2634         * i386.md (UNSPEC_SSE_PROLOGUE_SAVE_LOW): New.
2635         (sse_prologue_save_insn expander): Use new pattern.
2636         (sse_prologue_save_insn1): New pattern and splitter.
2637         (sse_prologue_save_insn): Update to deal also with 64bit aligned
2638         blocks.
2639         * i386.c (setup_incoming_varargs_64): Do not compute jump
2640         destination here.
2641         (ix86_gimplify_va_arg): Update alignment needed.
2642         (ix86_local_alignment): Do not align all local arrays to 128bit.
2643
2644 2010-04-17  Jan Hubicka  <jh@suse.cz>
2645
2646         * ipa-inline.c (cgraph_early_inlining): Handle flattening too.
2647
2648 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2649
2650         * arm.md (negdi2): Remove redundant code to force values into a
2651         register.
2652
2653 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2654
2655         * arm/bpabi.S: Add EABI alignment attributes to objects.
2656         * arm/bpabi-v6m.S: Likewise.
2657         * arm/crti.asm: Likewise.
2658         * arm/crtn.asm: Likewise.
2659         * arm/lib1funcs.asm: Likewise.
2660         * arm/libunwind.S: Likewise.
2661
2662 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2663
2664         * arm-protos.h (tune_params): New structure.
2665         * arm.c (current_tune): New variable.
2666         (arm_constant_limit): Delete.
2667         (struct processors): Add pointer to the tune parameters.
2668         (arm_slowmul_tune): New tuning option.
2669         (arm_fastmul_tune, arm_xscale_tune, arm_9e_tune): Likewise.
2670         (all_cores): Adjust to pick up the tuning model.
2671         (arm_constant_limit): New function.
2672         (arm_override_options): Select the appropriate tuning model.  Delete
2673         initialization of arm_const_limit.
2674         (arm_split_constant): Use the new constant-limit model.
2675         (arm_rtx_costs): Pick up the current tuning model.
2676         * arm.md (is_strongarm, is_xscale): Delete.
2677         * arm-generic.md (load_ldsched_x, load_ldsched): Test explicitly
2678         for Xscale variant architectures.
2679         (mult_ldsched_strongarm, mult_ldsched): Similarly for StrongARM.
2680
2681 2010-04-17  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2682
2683         * config/arm/arm.c (arm_gen_constant): Remove unused variable
2684         can_shift.
2685         (arm_rtx_costs_1): Remove unused variable extra_cost.
2686         (arm_unwind_emit_set): Use variable offset.
2687         (thumb1_output_casesi): Remove unused variable flags.
2688
2689 2010-04-16  Jeff Law  <law@redhat.com>
2690
2691         * ira-color.c (ira_reassign_pseudos): Collect and sort all the pseudos
2692         needing assignment rather than doing a two-phase assignment.  Remove
2693         unused variable 'm'.
2694
2695 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2696
2697         PR bootstrap/43767
2698         * alias.c (memrefs_conflict_p): Don't crash if CSELIB_VAL_PTR is NULL.
2699
2700 2010-04-16  Doug Kwan  <dougkwan@google.com>
2701
2702         * tree-ssa-reassoc.c (struct operand_entry): Add new field ID.
2703         (next_operand_entry_id): New static variable.
2704         (sort_by_operand_rank): Stabilize qsort comparator by using unique IDs.
2705         (add_to_ops_vec): Assigned unique ID to operand entry.
2706         (struct oecount_s): New field ID.
2707         (oecount_cmp): Stabilize qsort comparotor by using unique IDs.
2708         (undistribute_ops_list): Assign unique IDs to oecounts.
2709         (init_reassoc): reset next_operand_entry_id.
2710
2711 2010-04-16  Doug Kwan  <dougkwan@google.com>
2712
2713         * config/i386/i386.md (*jcc_bt<mode>): Fix build breakage by adding
2714         missing left parenthesis.
2715
2716 2010-04-16  Uros Bizjak  <ubizjak@gmail.com>
2717
2718         * config/i386/i386.md (*bt<mode>): Macroize insn from *btsi and
2719         *btdi_rex64 using SWI48 mode iterator.
2720         (*jcc_bt<mode>): Ditto from *jcc_btsi and *jcc_btdi_rex64.
2721         (*jcc_bt<mode>_mask): Ditto from *jcc_btsi_mask and
2722         *jcc_btdi_mask_rex64.
2723
2724 2010-04-16  Anatoly Sokolov  <aesok@post.ru>
2725
2726         * double-int.h (tree_to_double_int): Convert to macro.
2727         * double-int.c (tree_to_double_int): Remove.
2728
2729 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2730
2731         PR debug/43762
2732         * dwarf2out.c (add_bound_info): Always call loc_list_from_tree
2733         with want_address 2 and in case a single element list might be
2734         possible, call it again with want_address 0.
2735
2736 2010-04-12  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
2737
2738         * config/h8300/h8300.c (print_operand) : Modify case 'V' and
2739         case 'W' print operands for HI mode.
2740         * config/h8300/h8300.h (Y0, Y2) : New constraints.
2741         * config/h8300/h8300.md (bclrqi_msx, bclrhi_msx): New patterns
2742         (bsetqi_msx, bsethi_msx, bnotqi_msx, bnothi_msx): Likewise.
2743         * config/h8300/predicate.md (bit_register_indirect_operand): New.
2744
2745         * config/h8300/h8300.h (OK_FOR_U): Support 'U' constraint for H8300SX.
2746
2747         * config/h8300/h8300.md (movqi_h8sx, movhi_h8sx, movsi_h8sx,
2748         cmphi_h8300hs_znvc, cmpsi, addhi3_h8sx) : Emit instructions in
2749         #xx:3 and #xx:4 mode.
2750
2751         * config/h8300/h8300.md (inverted load with HImode dest): Add
2752         support for H8300SX.
2753
2754         * config/h8300/predicate.md (bit_operand): Allow immediate values that
2755         satisfy 'U' constraint.
2756
2757 2010-04-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2758
2759         * configure.ac: Check for elf_getshdrstrndx or elf_getshstrndx flavor.
2760         * configure: Regenerate.
2761         * config.in: Regenerate.
2762         * doc/install.texi (Prerequisites): Document that Solaris 2 libelf
2763         works.
2764
2765 2010-04-16  Richard Guenther  <rguenther@suse.de>
2766
2767         * tree.h (struct tree_decl_minimal): Move pt_uid ...
2768         (struct tree_decl_common): ... here.
2769         (DECL_PT_UID): Adjust.
2770         (SET_DECL_PT_UID): Likewise.
2771         (DECL_PT_UID_SET_P): Likewise.
2772
2773 2010-04-16  Richard Guenther  <rguenther@suse.de>
2774
2775         PR tree-optimization/43572
2776         * tree-ssa-alias.h (call_may_clobber_ref_p): Declare.
2777         * tree-ssa-alias.c (call_may_clobber_ref_p): Export.
2778         * tree-flow.h (is_call_clobbered): Remove.
2779         * tree-flow-inline.h (is_call_clobbered): Likewise.
2780         * tree-dfa.c (dump_variable): Do not dump call clobber state.
2781         * tree-nrv.c (dest_safe_for_nrv_p): Use the alias oracle.
2782         (execute_return_slot_opt): Adjust.
2783         * tree-tailcall.c (suitable_for_tail_opt_p): Remove
2784         check for call clobbered vars here.
2785         (find_tail_calls): Move tailcall verification to the
2786         proper place.
2787
2788 2010-04-16  Diego Novillo  <dnovillo@google.com>
2789
2790         * doc/invoke.texi: Explain how are unrecognized -Wno- warnings handled.
2791
2792 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
2793
2794         PR target/40603
2795         * config/arm/arm.md (cbranchqi4): New pattern.
2796         * config/arm/predicates.md (const0_operand,
2797         cbranchqi4_comparison_operator): New predicates.
2798
2799 2010-04-16  Richard Guenther  <rguenther@suse.de>
2800
2801         * gimple-pretty-print.c (dump_gimple_phi): Dump alias info.
2802         (dump_gimple_stmt): Likewise.
2803
2804 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
2805
2806         * recog.h (struct recog_data): New field is_operator.
2807         (struct insn_operand_data): New field is_operator.
2808         * recog.c (extract_insn): Set recog_data.is_operator.
2809         * genoutput.c (output_operand_data): Emit code to set the
2810         is_operator field.
2811         * reload.c (find_reloads): Use it rather than testing for an
2812         empty constraint string.
2813
2814         PR target/41514
2815         * config/arm/arm.md (cbranchsi4_insn): Renamed from "*cbranchsi4_insn".
2816         If the previous insn is a cbranchsi4_insn with the same arguments,
2817         omit the compare instruction.
2818
2819         * config/arm/arm.md (addsi3_cbranch): If destination is a high
2820         register, inputs must be low registers and we need a low register
2821         scratch.  Handle alternative 2 like alternative 3.
2822
2823 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2824
2825         * alias.c (memrefs_conflict_p): If x and y are the same VALUE,
2826         don't call get_addr on both.  If one expression is a VALUE and
2827         the other a REG, check VALUE's locs if the REG isn't among them.
2828
2829 2010-04-16  Christian Bruel  <christian.bruel@st.com>
2830
2831         * config/sh/sh.h (sh_frame_pointer_required): New function.
2832         * config/sh/sh.h (TARGET_FRAME_POINTER_REQUIRED): New macro.
2833         (flag_omit_frame_pointer) Set.
2834         (MASK_ACCUMULATE_OUTGOING_ARGS) Define and Set.
2835         (rounded_frame_size): Adjust size with outgoing_args_size.
2836         (sh_set_return_address): Must return from stack pointer.
2837         * gcc/config/sh/sh.h (CAN_DEBUG_WITHOUT_FP): Define.
2838         (SUBTARGET_FRAME_POINTER_REQUIRED): Define.
2839         (ACCUMULATE_OUTGOING_ARGS): Define.
2840         * doc/invoke.texi (maccumulate-outgoing-args): Document for SH.
2841         * gcc/config/sh/sh.opt: (maccumulate-outgoing-args): New option.
2842
2843 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
2844
2845         PR target/43471
2846         * config/sh/sh.c (sh_legitimize_reload_address): Use
2847         MAYBE_BASE_REGISTER_RTX_P instead of BASE_REGISTER_RTX_P.
2848         Remove a unneeded check for offset_base.
2849
2850 2010-04-15  H.J. Lu  <hongjiu.lu@intel.com>
2851
2852         * configure: Regenerated.
2853
2854 2010-04-15  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2855
2856         * config/s390/s390.c (s390_call_save_register_used): Switch back
2857         to HARD_REGNO_NREGS.
2858
2859 2010-04-15  Richard Guenther  <rguenther@suse.de>
2860
2861         * alias.c (alias_set_subset_of): Handle alias-set zero
2862         child properly.
2863
2864 2010-04-15  Mark Shinwell  <shinwell@codesourcery.com>
2865             Julian Brown  <julian@codesourcery.com>
2866
2867         * config/arm/thumb2.md (thumb2_movsi_insn): Split ldr and str
2868         alternatives according to use of high and low regs.
2869         * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
2870         * config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Use high regs when
2871         optimizing for size on Thumb-2.
2872
2873 2010-04-15  Thomas Schwinge  <tschwinge@gnu.org>
2874
2875         * config.gcc <i[34567]86-*-gnu*>: Handle softfp as for Linux.
2876
2877 2010-04-15  Richard Guenther  <rguenther@suse.de>
2878
2879         * tree-ssa-structalias.c (struct variable_info): Add
2880         is_fn_info flag.
2881         (new_var_info): Initialize it.
2882         (dump_constraints): Support printing last added constraints.
2883         (debug_constraints): Adjust.
2884         (dump_constraint_graph): Likewise.
2885         (make_heapvar_for): Check for NULL cfun.
2886         (get_function_part_constraint): New function.
2887         (get_fi_for_callee): Likewise.
2888         (find_func_aliases): Properly implement IPA PTA constraints.
2889         (process_ipa_clobber): New function.
2890         (find_func_clobbers): Likewise.
2891         (insert_into_field_list_sorted): Remove.
2892         (create_function_info_for): Properly allocate vars for IPA mode.
2893         Do not use insert_into_field_list_sorted.
2894         (create_variable_info_for): Properly generate constraints for
2895         global vars in IPA mode.
2896         (dump_solution_for_var): Always dump the solution.
2897         (set_uids_in_ptset): Initialize DECL_PT_UID if in ipa-mode.
2898         (find_what_var_points_to): Adjust.
2899         (pt_solution_set): Change.
2900         (pt_solution_ior_into): New function.
2901         (pt_solution_empty_p): Export.
2902         (pt_solution_includes_global): Adjust.
2903         (pt_solution_includes_1): Likewise.
2904         (pt_solutions_intersect_1): Likewise.
2905         (dump_sa_points_to_info): Check some invariants.
2906         (solve_constraints): Move constraint dumping ...
2907         (compute_points_to_sets): ... here.
2908         (ipa_pta_execute): ... and here.
2909         (compute_may_aliases): Do not re-compute points-to info
2910         locally if IPA info is available.
2911         (ipa_escaped_pt): New global var.
2912         (ipa_pta_execute): Properly implement IPA PTA.
2913         * tree-into-ssa.c (dump_decl_set): Support dumping
2914         decls not in referenced-vars.
2915         * tree-flow.h (struct gimple_df): Add ipa_pta flag.
2916         * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Adjust.
2917         (dump_points_to_solution): Likewise.
2918         * tree-dfa.c (dump_variable): Also dump DECL_PT_UID.
2919         * tree-inline.c (remap_ssa_name): Copy IPA points-to solution.
2920         (remap_gimple_stmt): Reset call clobber/use information if necessary.
2921         (copy_decl_to_var): Copy DECL_PT_UID.
2922         (copy_result_decl_to_var): Likewise.
2923         * tree.c (make_node_stat): Initialize DECL_PT_UID.
2924         (copy_node_stat): Copy it.
2925         * tree.h (DECL_PT_UID): New macro.
2926         (SET_DECL_PT_UID): Likewise.
2927         (DECL_PT_UID_SET_P): Likewise.
2928         (struct tree_decl_minimal): Add pt_uid member.
2929         * tree-ssa-alias.h (struct pt_solution): Add ipa_escaped flag.
2930         (pt_solution_empty_p): Declare.
2931         (pt_solution_set): Adjust.
2932         (ipa_escaped_pt): Declare.
2933         * cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
2934         * gimple-pretty-print.c (pp_points_to_solution): New function.
2935         (dump_gimple_call): Dump call clobber/use information.
2936         * tree-dump.c (dump_option_value_in): Add TDF_ALIAS entry.
2937         * tree-pass.h (TDF_ALIAS): New dump option.
2938         * tree-pretty-print.c (dump_decl_name): Dump DECL_PT_UID if asked to.
2939         * doc/invoke.texi (-fipa-pta): Update documentation.
2940
2941 2010-04-15  Richard Guenther  <rguenther@suse.de>
2942
2943         * Makefile.in (OBJS-common): Add gimple-fold.o.
2944         (gimple-fold.o): New rule.
2945         * tree.h (maybe_fold_offset_to_reference,
2946         maybe_fold_offset_to_address, maybe_fold_stmt_addition): Move
2947         prototypes ...
2948         * gimple.h: ... here.
2949         * tree-flow.h (fold_stmt, fold_stmt_inplace, get_symbol_constant_value,
2950         may_propagate_address_into_dereference): Move prototypes ...
2951         * gimple.h: ... here.
2952         * tree-ssa-ccp.c (get_symbol_constant_value,
2953         may_propagate_address_into_dereference, maybe_fold_offset_to_array_ref,
2954         maybe_fold_offset_to_component_ref, maybe_fold_offset_to_reference,
2955         maybe_fold_offset_to_address, maybe_fold_stmt_indirect,
2956         maybe_fold_stmt_addition, maybe_fold_reference, get_maxval_strlen,
2957         ccp_fold_builtin, fold_gimple_assign, fold_gimple_cond,
2958         fold_gimple_call, fold_stmt_1, fold_stmt, fold_stmt_inplace,
2959         gimplify_and_update_call_from_tree): Move ...
2960         * gimple-fold.c: ... here.  New file.
2961         (ccp_fold_builtin): Rename to ...
2962         (gimple_fold_builtin): ... this.
2963         * tree-ssa-ccp.c (execute_fold_all_builtins): Adjust.
2964
2965 2010-04-15  Richard Guenther  <rguenther@suse.de>
2966
2967         * fold-const.c (LOWPART, HIGHPART, BASE, encode, decode,
2968         fit_double_type, force_fit_type_double, add_double_with_sign,
2969         neg_double, mul_double_with_sign, lshift_double, rshift_double,
2970         lrotate_double, rrotate_double, div_and_round_double): Move ...
2971         * double-int.c: ... here.
2972         * tree.h (force_fit_type_double, fit_double_type, add_double_with_sign,
2973         add_double, neg_double, mul_double_with_sign, mul_double,
2974         lshift_double, rshift_double, lrotate_double, rrotate_double,
2975         div_and_round_double): Move prototypes ...
2976         * double-int.h: ... here.
2977
2978 2010-04-15  Bernd Schmidt  <bernds@codesourcery.com>
2979
2980         PR target/43742
2981         * config/sh/sh.md (doloop_end_split, dect): Undo previous patch.  Use
2982         matching constraints to ensure inputs match the output.
2983
2984 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
2985
2986         PR target/43742
2987         * config/sh/sh.md (doloop_end_split): Remove "+r" constraint
2988         in an input-only operand.
2989
2990 2010-04-15  Anatoly Sokolov  <aesok@post.ru>
2991
2992         * double-int.h (HOST_BITS_PER_DOUBLE_INT): Define.
2993         (double_int_not, double_int_lshift, double_int_rshift): Declare.
2994         (double_int_negative_p): Convert to static inline function.
2995         * double-int.c (double_int_lshift, double_int_lshift): New functions.
2996         (double_int_negative_p): Remove.
2997         * tree.h (lshift_double, rshift_double):
2998         * tree.c (build_low_bits_mask): Clean up, use double_int_* functions.
2999         * fold-const.c (fold_convert_const_int_from_real,
3000         fold_convert_const_int_from_fixed, div_if_zero_remainder): (Ditto.).
3001         (lshift_double): Change type of arith argument to bool.
3002         (rshift_double): Change type of arith argument to bool. Correct
3003         comment.
3004         * expmed.c (mask_rtx, lshift_value): (Ditto.).
3005
3006 2010-04-14  Bernd Schmidt  <bernds@codesourcery.com>
3007
3008         PR target/21803
3009         * ifcvt.c (cond_exec_process_if_block): Look for identical sequences
3010         at the start and end of the then/else blocks, and omit them from the
3011         conversion.
3012         * cfgcleanup.c (flow_find_cross_jump): No longer static.  Remove MODE
3013         argument; all callers changed.  Pass zero to old_insns_match_p instead.
3014         (flow_find_head_matching_sequence): New function.
3015         (old_insns_match_p): Check REG_EH_REGION notes for calls.
3016         * basic-block.h (flow_find_cross_jump,
3017         flow_find_head_matching_sequence): Declare functions.
3018
3019 2010-04-14  Jason Merrill  <jason@redhat.com>
3020
3021         PR c++/36625
3022         * c-common.c (attribute_takes_identifier_p): New fn.
3023         * c-common.h: Declare it.
3024
3025 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3026
3027         * config/i386/i386.md (*divmod<mode>4): Remove stray "&&" from
3028         splitter condition.
3029         (*udivmod<mode>4): Ditto.
3030
3031 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3032
3033         * config/i386/i386.md (maxmin_int): Rename code attribute from
3034         maxminiprefix and update all users.
3035         (maxmin_float): Ditto from maxminfprefix.
3036         (logic): Ditto from logicprefix.
3037         (absneg_mnemonic): Ditto from absnegprefix.
3038         * config/i386/mmx.md: Update all users of maxminiprefix,
3039         maxminfprefix and logicprefix for rename.
3040         * config/i386/sse.md: Ditto.
3041         * config/i386/sync.md (sync_<code><mode>): Update for
3042         logicprefix rename.
3043
3044 2010-04-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3045
3046         PR 42966
3047         * diagnostics.c (diagnostic_report_diagnostic): Mark specially
3048         warnings converted to errors.
3049
3050 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3051
3052         * config/alpha/alpha.c (alpha_adjust_cost): Remove set but not
3053         used insn_type variable.
3054         (function_value): Add ATTRIBUTE_UNUSED to dummy variable declaration
3055         to avoid set-but-not-used warning.
3056
3057 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3058
3059         * df-core.c (df_ref_debug): Change format string placeholder
3060         from 0x%x to %#x.
3061         * dwarf2asm.c (dw2_asm_output_data_raw,
3062         dw2_asm_output_data_uleb128_raw, dw2_asm_output_data_uleb128,
3063         dw2_asm_output_data_sleb128_raw, dw2_asm_output_data_sleb128): Ditto.
3064         * dwarf2out.c (output_cfi, output_cfi_directive,
3065         dwarf2out_do_cfi_startproc, output_loc_sequence_raw,
3066         output_cfa_loc_raw, output_die, output_ranges, output_file_names):
3067         Ditto.
3068         * genattrtab.c (write_test_expr, write_attr_valueq): Ditto.
3069         * print-rtl.c (print_rtx): Ditto.
3070
3071 2010-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
3072
3073         PR middle-end/42694
3074         * builtins.c (expand_builtin_pow_root): New function to expand pow
3075         calls with exponents 0.25, 0.50, 0.75, 1./3., and 1./6. into a
3076         series of sqrt and cbrt calls under -ffast-math.
3077         (expand_builtin_pow): Call it.
3078
3079 2010-04-14  Michael Matz  <matz@suse.de>
3080
3081         PR tree-optimization/42963
3082         * tree-cfg.c (touched_switch_bbs): New static variable.
3083         (group_case_labels_stmt): New function broken out from ...
3084         (group_case_labels): ... here, use the above.
3085         (start_recording_case_labels): Allocate touched_switch_bbs.
3086         (end_recording_case_labels): Deallocate it, call
3087         group_case_labels_stmt.
3088         (gimple_redirect_edge_and_branch): Remember index of affected BB.
3089
3090 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3091
3092         * config/i386/i386.md (*popcountsi2_cmp_zext): Remove mode attribute
3093         from insn template.
3094
3095 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
3096
3097         * config/i386/i386.md (*ashlqi3_1_slp): New insn pattern.
3098
3099 2010-04-13  Jan Hubicka  <jh@suse.cz>
3100
3101         * ipa-inline.c (cgraph_mark_inline_edge): Avoid double accounting
3102         of optimized out static functions.
3103         (cgraph_edge_badness): Add DUMP parameter and dump reasons for the
3104         cost computation.  Also sanity check for overflows.
3105         (update_caller_keys): Update cgraph_edge_badness call; properly
3106         update fibheap and sanity check that it is up to date.
3107         (add_new_edges_to_heap): Update cgraph_edge_badness.
3108         (cgraph_decide_inlining_of_small_function): Likewise;
3109         add sanity checking that badness in heap is up to date;
3110         improve dumping of reason; Update badness of calls to the
3111         offline copy of function currently inlined; dump badness
3112         of functions not inlined because of unit growth limits.
3113
3114 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
3115
3116         PR middle-end/32628
3117         * c-common.c (pointer_int_sum): Disregard overflow that occured only
3118         because of sign-extension change when converting to sizetype here...
3119         * fold-const.c (fold_convert_const_int_from_int): ...and not here.
3120
3121         * fold-const.c (fold_binary_op_with_conditional_arg): Do not restrict
3122         the folding to constants.  Remove redundant final conversion.
3123         (fold_binary) <associate>: Do not associate if the re-association of
3124         constants alone overflows.
3125         (fold_binary) <FLOOR_MOD_EXPR>: Move transformation into BIT_AND_EXPR
3126         to the end of the list.
3127         (multiple_of_p) <COND_EXPR>: New case.
3128
3129 2010-04-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3130
3131         * opt-functions.awk (opt_sanitized_name): New.
3132         (opt_enum): New.
3133         * optc-gen.awk: Use it
3134         * opth-gen.awk: Use it.
3135
3136 2010-04-13  Martin Jambor  <mjambor@suse.cz>
3137
3138         * tree-sra.c (replace_uses_with_default_def_ssa_name): New function.
3139         (sra_modify_assign): Delete stmts loading dead data even if racc has no
3140         children.  Call replace_uses_with_default_def_ssa_name to handle
3141         SSA_NAES on lhs.
3142
3143 2010-04-13  Michael Matz  <matz@suse.de>
3144
3145         PR middle-end/43730
3146         * builtins.c (expand_builtin_interclass_mathfn): Also create
3147         a register if the predicate doesn't match.
3148
3149 2010-04-13  Diego Novillo  <dnovillo@google.com>
3150
3151         * Makefile.in (c-pch.o, ggc-common.o): Depend on timevar.h.
3152         * c-pch.c: Include timevar.h.
3153         (c_common_write_pch): Use TV_PCH_SAVE and TV_PCH_CPP_SAVE timers.
3154         (c_common_read_pch): Use TV_PCH_RESTORE and TV_PCH_CPP_RESTORE timers.
3155         * ggc-common.c: Include timevar.h.
3156         (gt_pch_save): Use TV_PCH_PTR_REALLOC and TV_PCH_PTR_SORT timers.
3157         * timevar.def (TV_PCH_SAVE): Define.
3158         (TV_PCH_CPP_SAVE): Define.
3159         (TV_PCH_PTR_REALLOC): Define.
3160         (TV_PCH_PTR_SORT): Define.
3161         (TV_PCH_RESTORE): Define.
3162         (TV_PCH_CPP_RESTORE): Define.
3163
3164 2010-04-13  Michael Matz  <matz@suse.de>
3165
3166         * tree-ssa-reassoc.c (repropagate_negates): Merge negates also
3167         into MINUS_EXPRs.
3168         (can_reassociate_p): New function.
3169         (break_up_subtract_bb, reassociate_bb): Use it.
3170
3171 2010-04-13  Richard Guenther  <rguenther@suse.de>
3172
3173         PR bootstrap/43737
3174         * builtins.c (c_readstr): Fix assert.
3175
3176 2010-04-13  Uros Bizjak  <ubizjak@gmail.com>
3177
3178         * config/i386/i386.md (extendsidi2 splitter): Also check for DX_REG
3179         when generating cltd insn.
3180
3181         (*ashl<mode>3_1): Remove special handling for register operand 2.
3182         (*ashlsi3_1_zext): Ditto.
3183         (*ashlhi3_1): Ditto.
3184         (*ashlhi3_1_lea): Ditto.
3185         (*ashlqi3_1): Ditto.
3186         (*ashlqi3_1_lea): Ditto.
3187         (*<shiftrt_insn><mode>3_1): Ditto.
3188         (*<shiftrt_insn>si3_1_zext): Ditto.
3189         (*<shiftrt_insn>qi3_1_slp): Ditto.
3190         (*<rotate_insn><mode>3_1): Ditto.
3191         (*<rotate_insn>si3_1_zext): Ditto.
3192         (*<rotate_insn>qi3_1_slp): Ditto.
3193
3194 2010-04-13  Richard Guenther  <rguenther@suse.de>
3195
3196         * tree-ssa-structalias.c (callused_id): Remove.
3197         (call_stmt_vars): New.
3198         (get_call_vi): Likewise.
3199         (lookup_call_use_vi): Likewise.
3200         (lookup_call_clobber_vi): Likewise.
3201         (get_call_use_vi): Likewise.
3202         (get_call_clobber_vi): Likewise.
3203         (make_transitive_closure_constraints): Likewise.
3204         (handle_const_call): Adjust to do per-call call-used handling.
3205         (handle_pure_call): Likewise.
3206         (find_what_var_points_to): Remove general callused handling.
3207         (init_base_vars): Likewise.
3208         (init_alias_vars): Initialize call_stmt_vars.
3209         (compute_points_to_sets): Process call-used and call-clobbered
3210         vars for call statements.
3211         (delete_points_to_sets): Free call_stmt_vars.
3212
3213 2010-04-13  Richard Guenther  <rguenther@suse.de>
3214
3215         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
3216         Only add RW dependence for dependence distance zero.
3217         Adjust maximal vectorization factor according to dependences.
3218         Move alignment handling ...
3219         (vect_find_same_alignment_drs): ... here.  New function.
3220         (vect_analyze_data_ref_dependences): Adjust.
3221         (vect_analyze_data_refs_alignment): Call vect_find_same_alignment_drs.
3222         (vect_analyze_data_refs): Adjust minimal vectorization factor
3223         according to data references.
3224         * tree-vect-loop.c (vect_analyze_loop): Analyze data-ref
3225         dependences before determining the vectorization factor.
3226         Analyze alignment after determining the vectorization factor.
3227         * tree-vect-slp.c ((vect_slp_analyze_bb): Analyze data-ref
3228         dependences before alignment.
3229         * tree-vectorizer.h (vect_analyze_data_ref_dependences):
3230         Adjust prototype.
3231         (vect_analyze_data_refs): Likewise.
3232         (MAX_VECTORIZATION_FACTOR): New define.
3233
3234 2010-04-13  Duncan Sands  <baldrick@free.fr>
3235
3236         * except.h (lang_eh_type_covers): Remove.
3237         * except.c (lang_eh_type_covers): Likewise.
3238
3239 2010-04-13  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3240             Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3241
3242         * gcc/config/s390/s390.md: Replace TARGET_64BIT with TARGET_ZARCH.
3243         * gcc/config/s390/s390.c: Replace UNTIS_PER_WORD with
3244         UNITS_PER_LONG where it is ABI relevant.
3245         (s390_return_addr_rtx): Likewise.
3246         (s390_back_chain_rtx): Likewise.
3247         (s390_frame_area): Likewise.
3248         (s390_frame_info): Likewise.
3249         (s390_initial_elimination_offset): Likewise.
3250         (save_gprs): Likewise.
3251         (s390_emit_prologue): Likewise.
3252         (s390_emit_epilogue): Likewise.
3253         (s390_function_arg_advance): Likewise.
3254         (s390_function_arg): Likewise.
3255         (s390_va_start): Likewise.
3256         (s390_gimplify_va_arg): Likewise.
3257         (s390_function_profiler): Likewise.
3258         (s390_optimize_prologue): Likewise.
3259         (s390_rtx_costs): Likewise.
3260         (s390_secondary_reload): Likewise.
3261         (s390_promote_function_mode): Likewise.
3262         (s390_hard_regno_mode_ok): Replace TARGET_64BIT with TARGET_ZARCH.
3263         (s390_scalar_mode_supported_p): Disallow TImode if no 64 bit
3264         registers available.
3265         (s390_unwind_word_mode): New function.
3266         (s390_function_value): Split 64 bit values into register pair if
3267         used as return value.
3268         (s390_call_saved_register_used): Don't use HARD_REGNO_NREGS for
3269         function call parameters.  Handle parallels.
3270         (TARGET_SCALAR_MODE_SUPPORTED_P): New macro.
3271         (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
3272         (DWARF_CIE_DATA_ALIGNMENT): New macro.
3273         (s390_expand_setmem): Remove unused variable src_addr.
3274         * gcc/longlong.h: Make smul_ppmm and sdiv_qrnnd inline asms to
3275         deal with 64 bit registers.
3276         * gcc/config/s390/s390.h: Define __zarch__ predefined macro.
3277         Replace UNITS_PER_WORD with UNITS_PER_LONG where it is ABI relevant.
3278         (UNITS_PER_LONG): New macro.
3279         * libjava/include/s390-signal.h: Define extended ucontext
3280         structure containing the upper halfs of the 64 bit registers.
3281
3282 2010-04-13  Simon Baldwin  <simonb@google.com>
3283
3284         * cfgexpand.c (gimple_expand_cfg): Clarify warning message text.
3285
3286 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
3287
3288         * gimple.c (walk_gimple_op) <GIMPLE_ASSIGN>: Do not request a pure
3289         rvalue on the RHS if the LHS is of a non-renamable type.
3290         * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Fold result.
3291
3292 2010-04-13  Matthias Klose  <doko@ubuntu.com>
3293
3294         * gcc.c (cc1_options): Handle -iplugindir before processing
3295         the cc1 spec. Only add -iplugindir once.
3296         (cpp_unique_options): Add -iplugindir option if -fplugin* options
3297         found.
3298         * common.opt (iplugindir): Remove `Separate' property, initialize.
3299         * plugin.c (default_plugin_dir_name): Error with missing -iplugindir
3300         option.
3301         * Makefile.in (check-%, check-parallel-%): Create plugin dir.
3302         (distclean): Remove plugin dir.
3303         * doc/invoke.texi: Document -iplugindir.
3304
3305 2010-04-13  Basile Starynkevitch  <basile@starynkevitch.net>
3306
3307         * doc/plugins.texi (Loading Plugins): Document short
3308         -fplugin=foo option.
3309         (Plugin API): Mention default_plugin_dir_name function.
3310
3311         * gcc.c (find_file_spec_function): Add new declaration.
3312         (static_spec_func): Use it for "find-file".
3313         (find_file_spec_function): Add new function.
3314         (cc1_options): Add -iplugindir option if -fplugin* options found.
3315
3316         * gcc-plugin.h (default_plugin_dir_name): Added new declaration.
3317
3318         * plugin.c (add_new_plugin): Updated comment, and handle short
3319         plugin name.
3320         (default_plugin_dir_name): Added new function.
3321
3322         * common.opt (iplugindir): New option to set the plugin directory.
3323
3324 2010-04-12  Uros Bizjak  <ubizjak@gmail.com>
3325
3326         * config/i386/i386.md (any_rotate): New code iterator.
3327         (rotate_insn): New code attribute.
3328         (rotate): Ditto.
3329         (SWIM124): New mode iterator.
3330         (<rotate_insn>ti3): New expander.
3331         (<rotate_insn>di3): Macroize expander from {rotl,rotr}di3 using
3332         any_rotate code iterator.
3333         (<rotate_insn><mode>3) Macroize expander from {rotl,rotr}{qi,hi,si}3
3334         using any_rotate code iterator and SWIM124 mode iterator.
3335         (ix86_rotlti3): New insn_and_split pattern.
3336         (ix86_rotrti3): Ditto.
3337         (ix86_rotl<dwi>3_doubleword): Macroize insn_and_split pattern from
3338         ix86_rotl{di,ti}3 patterns.
3339         (ix86_rotr<dwi>3_doubleword): Ditto from ix86_rotr{di,ti}3 patterns.
3340         (*<rotate_insn><mode>3_1): Merge with *{rotl,rotr}{qi,hi,si}3_1_one_bit
3341         and *{rotl,rotr}di3_1_one_bit_rex64. Macroize insn from
3342         *{rotl,rotr}{qi,hi,si}3_1 and *{rotl,rotr}di3_1_rex64 using any_rotate
3343         code iterator and SWI mode iterator.
3344         (*<rotate_insn>si3_1_zext): Merge with *{rotl,rotr}si3_1_one_bit_zext.
3345         Macroize insn from {rotl,rotr}si3_1_zext using any_rotate
3346         code iterator.
3347         (*<rotate_insn>qi3_1_slp): Merge with *{rotl,rotr}qi3_1_one_bit_slp.
3348         Macroize insn from {rotl,rotr}qi3_1_slp using any_rotate code iterator.
3349         (bswap rotatert splitter): Add splitter.
3350         (bswap splitter): Macroize splitter using any_rotate code iterator.
3351         Add insn predicate to split only for TARGET_USE_XCHGB or when
3352         optimizing function for size.
3353
3354 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
3355
3356         * config/pa/pa.c (emit_move_sequence): Remove use of
3357         deleted variable flag_argument_noalias.
3358
3359 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3360
3361         * config.gcc: Removed *-*-solaris2.7* from list of obsolete
3362         configurations.
3363         Add to unsupported targets list.
3364         * configure.ac (gcc_cv_as_tls): Removed i[34567]86-*-solaris2.[567]*,
3365         sparc*-sun-solaris2.[567]* from target lists.
3366         * configure: Regenerate.
3367         * doc/install.texi (Specific, *-*-solaris2*): Document Solaris 7
3368         removal.
3369         Remove Solaris 7 patch references.
3370         (Specific, sparc-sun-solaris2.7): Removed.
3371         (sparc-sun-solaris2*): Update Solaris 7 example.
3372         (sparc64-*-solaris2*): Likewise.
3373
3374 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3375
3376         * config.build (alpha*-dec-osf4*): Remove.
3377         * config.gcc: Remove alpha*-dec-osf4*, alpha-dec-osf5.0* from list
3378         of obsolete configurations.
3379         (alpha*-dec-osf[45]*): Remove alpha*-dec-osf4*, alpha-dec-osf5.0*
3380         support.
3381         * config/alpha/t-osf4: Renamed to ...
3382         * config/alpha/t-osf5: ... this.
3383         * config/alpha/osf.h: Renamed to ...
3384         * config/alpha/osf5.h: ... this.
3385         Merged old osf5.h contents.
3386         Update comments.
3387         (ASM_SPEC): Use ASM_OLDAS_SPEC directly.
3388         (EXTRA_SPECS): Removed.
3389         * doc/install.texi (Specific, alpha*-dec-osf5.1): Renamed to
3390         reflect removal of Tru64 UNIX V4.0/V5.0 support.
3391         Document that.
3392
3393 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3394
3395         * doc/contrib.texi (Contributors, Rainer Orth): Update.
3396
3397 2010-04-12  Kai Tietz  <kai.tietz@onevision.com>
3398
3399         PR/43702
3400         * config/i386/i386.c (x86_this_parameter): Handle aggregate for
3401         __thiscall convention.
3402
3403 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
3404
3405         * config/pa/pa.c (hppa_legitimize_address): Remove unused variable
3406         orig_base.
3407         * config/pa/pa.md (call, call_value): Remove unused variable call_insn.
3408
3409 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
3410
3411         * function.c (assign_parms_initialize_all): Add unused attribute
3412         to fntype.
3413
3414 2010-04-12  Richard Guenther  <rguenther@suse.de>
3415
3416         * gsstruct.def (GSS_CALL): New.
3417         * gimple.def (GIMPLE_CALL): Change to GSS_CALL.
3418         * gimple.h: Include tree-ssa-alias.h.
3419         (struct gimple_statement_call): New.
3420         (union gimple_statement_struct_d): Add gimple_call member.
3421         (gimple_call_reset_alias_info): Declare.
3422         (gimple_call_use_set): New function.
3423         (gimple_call_clobber_set): Likewise.
3424         * Makefile.in (GIMPLE_H): Add tree-ssa-alias.h.
3425         * gimple.c (gimple_call_reset_alias_info): New function.
3426         (gimple_build_call_1): Call it.
3427         * lto-streamer-in.c (input_gimple_stmt): Likewise.
3428         * tree-inline.c (remap_gimple_stmt): Likewise.
3429         (expand_call_inline): Remove callused handling.
3430         * cfgexpand.c (update_alias_info_with_stack_vars): Likewise.
3431         * tree-dfa.c (dump_variable): Likewise.
3432         * tree-parloops.c (parallelize_loops): Likewise.
3433         * tree-ssa.c (init_tree_ssa): Likewise.
3434         (delete_tree_ssa): Likewise.
3435         * tree-flow-inline.h (is_call_used): Remove.
3436         * tree-flow.h (struct gimple_df): Remove callused member.
3437         * tree-nrv.c (dest_safe_for_nrv_p): Adjust predicate.
3438         * tree-ssa-alias.c (dump_alias_info): Remove callused handling.
3439         (ref_maybe_used_by_call_p_1): Simplify.
3440         (call_may_clobber_ref_p_1): Likewise.
3441         * tree-ssa-structalias.c (compute_points_to_sets): Set
3442         the call stmt used and clobbered sets.
3443         * tree-tailcall.c (suitable_for_tail_opt_p): Adjust predicate.
3444         (find_tail_calls): Verify the tail call.
3445
3446 2010-04-12  Richard Guenther  <rguenther@suse.de>
3447
3448         * ipa.c (cgraph_postorder): Adjust postorder to guarantee
3449         single-iteration always-inline inlining.
3450         * ipa-inline.c (cgraph_mark_inline): Do not return anything.
3451         (cgraph_decide_inlining): Do not handle always-inline specially.
3452         (try_inline): Remove always-inline cycle detection special case.
3453         Do not recurse on always-inlines.
3454         (cgraph_early_inlining): Do not iterate if not optimizing.
3455         (cgraph_gate_early_inlining): remove.
3456         (pass_early_inline): Run unconditionally.
3457         (gate_cgraph_decide_inlining): New function.
3458         (pass_ipa_inline): Use it.  Do not run the IPA inliner if
3459         not inlining or optimizing.
3460         (cgraph_decide_inlining_of_small_functions): Also consider
3461         always-inline functions.
3462         (cgraph_default_inline_p): Return true for nodes which should
3463         disregard inline limits.
3464         (estimate_function_body_sizes): Assume zero size and time for
3465         nodes which are marked as disregarding inline limits.
3466         (cgraph_decide_recursive_inlining): Do not perform recursive
3467         inlining on always-inline nodes.
3468
3469 2010-04-12  Jakub Jelinek  <jakub@redhat.com>
3470
3471         PR bootstrap/43699
3472         * c-typeck.c (c_process_expr_stmt): Call mark_exp_read even
3473         for exprs satisfying handled_component_p.
3474
3475 2010-04-12  Eric Botcazou  <ebotcazou@adacore.com>
3476
3477         * expr.c (categorize_ctor_elements_1): Properly count sub-elements of
3478         non-constant aggregate elements.
3479
3480         * gimplify.c (gimplify_init_constructor): Do not pre-evaluate if this
3481         is a real initialization.
3482
3483 2010-04-12  Shujing Zhao  <pearly.zhao@oracle.com>
3484
3485         PR c/36774
3486         * c-decl.c (start_function): Move forward check for nested function.
3487
3488 2010-04-11  Kaz Kojima  <kkojima@gcc.gnu.org>
3489
3490         * config/sh/sh-protos.h (sh_legitimize_reload_address): Declare.
3491         * config/sh/sh.c: Include reload.h.
3492         (sh_legitimize_reload_address): New.
3493         * config/sh/sh.h (LEGITIMIZE_RELOAD_ADDRESS): Use
3494         sh_legitimize_reload_address.
3495
3496 2010-04-11  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
3497
3498         * config/sh/sh.md (*movqi_pop): New insn pattern.
3499         * config/sh/predicates.md (sh_no_delay_pop_operand): New predicate.
3500
3501 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
3502
3503         * config/i386/i386.md (any_shiftrt): New code iterator.
3504         (shiftrt_insn): New code attribute.
3505         (shiftrt): Ditto.
3506         (<shiftrt_insn><mode>3): Macroize expander from {ashr,lshr}<mode>3
3507         using any_shiftrt code iterator.
3508         (*<shiftrt_insn><mode>3_doubleword): Macroize insn_and_split from
3509         *{ashr,lshr}<mode>3_doubleword using any_shiftrt code iterator.
3510         (*<shiftrt_insn><mode>3_doubleword peephole2): Macroize peephole2
3511         pattern from corresponding peephole2 patterns.
3512         (*<shiftrt_insn><mode>3_1): Macroize insn from *{ashr,lshr}<mode>3_1
3513         using any_shiftrt code iterator.
3514         (*<shiftrt_insn>si3_1_zext): Ditto from *{ashr,lshr}si3_1_zext.
3515         (*<shiftrt_insn>qi3_1_slp): Ditto from *{ashr,lshr}qi3_1_slp.
3516         (*<shiftrt_insn><mode>3_cmp): Ditto from *{ashr,lshr}<mode>3_cmp.
3517         (*<shiftrt_insn><mode>3_cmp_zext): Ditto from
3518         *{ashr,lshr}<mode>3_cmp_zext.
3519         (*<shiftrt_insn><mode>3_cconly): Ditto from *{ashr,lshr}<mode>3_cconly.
3520
3521 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
3522
3523         * config/i386/i386.md (*ashr<mode>3_cconly): Fix wrong mode of
3524         scratch register.
3525         (*lshr<mode>3_cconly): Ditto.
3526
3527 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
3528
3529         * config/i386/i386.md (lshr<mode>3): Macroize expander from
3530         lshr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
3531         (*lshr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
3532         pattern from *lshr{di,ti}3_1 and corresponding splitters using
3533         DWI mode iterator.
3534         (*lshr<mode>3_doubleword peephole2): Macroize peephole2 pattern
3535         from corresponding peephole2 patterns.
3536         (*lshr<mode>3_1): Merge with *lshr{qi,hi,si}3_1_one_bit and
3537         *lshrdi3_1_one_bit_rex64. Macroize insn from *lshr{qi,hi,si}3_1
3538         and *lshrdi3_1_rex64 using SWI mode iterator.
3539         (*lshrsi3_1_zext): Merge with *lshrsi3_1_one_bit_zext.
3540         (*lshrqi3_1_slp): Merge with *lshrqi3_1_one_bit_slp.
3541         (*lshr<mode>3_cmp): Merge with *lshr{qi,hi,si}3_one_bit_cmp and
3542         *lshrdi3_one_bit_cmp_rex64. Macroize insn from *lshr{qi,hi,si}3_cmp
3543         and *lshrdi3_cmp_rex64 using SWI mode iterator.
3544         (*lshrsi3_cmp_zext): Merge with *lshrsi3_cmp_one_bit_zext.
3545         (*lshr<mode>3_cconly): Merge with *lshr{qi,hi,si}3_one_bit_cconly and
3546         *lshrdi3_one_bit_cconly_rex64. Macroize insn from
3547         *lshr{qi,hi,si}3_cconly and *lshrdi3_cconly_rex64 using
3548         SWI mode iterator.
3549
3550 2010-04-10  Uros Bizjak  <ubizjak@gmail.com>
3551
3552         * config/i386/i386.md (ashr<mode>3): Macroize expander from
3553         ashr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
3554         (*ashr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
3555         pattern from *ashr{di,ti}3_1 and corresponding splitters using
3556         DWI mode iterator.
3557         (*ashr<mode>3_doubleword peephole2): Macroize peephole2 pattern
3558         from corresponding peephole2 patterns.
3559         (ashrdi3_cvt): Rename from ashrdi3_63_rex64.
3560         (ashrsi3_cvt): Rename from ashrsi3_31.
3561         (*ashrsi3_cvt_zext): Rename from *ashrsi3_31_zext.
3562         (x86_shift<mode>_adj_3): Macroize expander from x86_shift_adj_3
3563         and x86_64_shift_adj_3 using SWI48 mode iterator.
3564         (*ashr<mode>3_1): Merge with *ashr{qi,hi,si}3_1_one_bit and
3565         *ashrdi3_1_one_bit_rex64. Macroize insn from *ashr{qi,hi,si}3_1
3566         and *ashrdi3_1_rex64 using SWI mode iterator.
3567         (*ashrsi3_1_zext): Merge with *ashrsi3_1_one_bit_zext.
3568         (*ashrqi3_1_slp): Merge with *ashrqi3_1_one_bit_slp.
3569         (*ashr<mode>3_cmp): Merge with *ashr{qi,hi,si}3_one_bit_cmp and
3570         *ashrdi3_one_bit_cmp_rex64. Macroize insn from *ashr{qi,hi,si}3_cmp
3571         and *ashrdi3_cmp_rex64 using SWI mode iterator.
3572         (*ashrsi3_cmp_zext): Merge with *ashrsi3_cmp_one_bit_zext.
3573         (*ashr<mode>3_cconly): Merge with *ashr{qi,hi,si}3_one_bit_cconly and
3574         *ashrdi3_one_bit_cconly_rex64. Macroize insn from
3575         *ashr{qi,hi,si}3_cconly and *ashrdi3_cconly_rex64 using
3576         SWI mode iterator.
3577         (sign_extend splitters): Update for renamed ashr{di,si}3_cvt patterns.
3578         * config/i386/i386.c (ix86_split_ashr): Update for renamed
3579         x86_shift<mode>_adj_3 expanders.
3580
3581 2010-04-10  Wei Guozhi  <carrot@google.com>
3582
3583         PR target/42601
3584         * config/arm/arm.c (arm_pic_static_addr): New function.
3585         (legitimize_pic_address): Call arm_pic_static_addr when it detects
3586         a static symbol.
3587         (arm_output_addr_const_extra): Output expression for new pattern.
3588         * config/arm/arm.md (UNSPEC_SYMBOL_OFFSET): New unspec symbol.
3589
3590 2010-04-10  Bernd Schmidt  <bernds@codesourcery.com>
3591
3592         * ira-costs.c (record_reg_classes): Ignore alternatives that are
3593         not enabled.
3594
3595         * Makefile.in (web.o): Depend on insn-config.h and $(RECOG_H).
3596         * web.c: Include "insn-config.h" and "recog.h".
3597         (union_match_dups): New function.
3598         (web_main): Call it.
3599         (union_defs): Don't try to recognize match_dups.
3600
3601         * reload1.c (eliminate_regs_in_insn): Don't restore an operand
3602         if doing so would replace the entire pattern.
3603
3604 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
3605
3606         PR target/43707
3607         PR target/43709
3608         * config/i386/i386.md (*ashl<mode>3_doubleword): Split to insn
3609         and splitter pattern.  Change splitter operand 1 predicate to
3610         nonmemory_operand.
3611
3612 2010-04-09  Martin Jambor  <mjambor@suse.cz>
3613
3614         * ipa-cp.c (ipcp_lats_are_equal): Return true also if the two
3615         lattices are addresses of CONST_DECLs with the same initial value.
3616         (ipcp_print_all_lattices): Print values of CONST_DECLs.
3617         * ipa-prop.c (ipa_print_node_jump_functions): Likewise.
3618
3619 2010-04-09  Eric Botcazou  <ebotcazou@adacore.com>
3620             Bernd Schmidt  <bernds@codesourcery.com>
3621
3622         * loop-invariant.c (replace_uses): New static function.
3623         (move_invariant_reg): Use it to ensure we can replace the uses.
3624
3625 2010-04-09  Hariharan Sandanagobalane  <hariharan@picochip.com>
3626
3627         * config/picochip/picochip.c (picochip_rtx_costs): Use correct
3628         function template.
3629         (picochip_override_options): Enable section anchors only above -O1.
3630         (picochip_reorg): Fixed a couple of build warnings.
3631
3632 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3633
3634         * configure.ac (plugin -rdynamic test): Log result.
3635         * configure: Regenerate.
3636         * config/sol2.h (LINK_SPEC): Handle -rdynamic.
3637         (RDYNAMIC_SPEC): Define.
3638         * config/sol2-gld.h (RDYNAMIC_SPEC): Redefine.
3639
3640 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3641
3642         * configure.ac: Determine Sun ld version numbers.
3643         (comdat_group): Restrict GNU ld version checks to gld.
3644         (comdat_group, *-*-solaris2.1[1-9]*): Enable for Sun ld > 1.1688.
3645         (enable_comdat): Support --enable-comdat.
3646         * configure: Regenerate.
3647         * doc/install.texi (Configuration): Document --enable-comdat.
3648
3649 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3650
3651         * config/sparc/sol2-gld.h: Remove SPARC reference.  Rename ...
3652         * config/sol2-gld.h: ... here.
3653         * config.gcc (sparc*-*-solaris2*): Reflect this.
3654         (i[34567]86-*-solaris2*): Use it.
3655
3656 2010-04-09  Steve Ellcey  <sje@cup.hp.com>
3657
3658         * config/ia64/ia64.c (ia64_dfa_new_cycle): Remove unused variable
3659         setup_clocks_p.
3660         (final_emit_insn_group_barriers): Remove unused variable prev_insn.
3661
3662 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3663
3664         PR 42965
3665         * diagnostic.c (diagnostic_initialize): Initialize
3666         some_warnings_are_errors.
3667         (diagnostic_finish): New.
3668         (diagnostic_action_after_output): Call it before exiting.
3669         (diagnostic_report_diagnostic): Do not print message here. Set
3670         some_warnings_are_errors.
3671         * diagnostic.h (diagnostic_context): Delete
3672         issue_warnings_are_errors_message. Add some_warnings_are_errors.
3673         (diagnostic_finish): Declare.
3674         * toplev.c (toplev_main): Call it before exit.
3675
3676 2010-04-09  Jason Merrill  <jason@redhat.com>
3677
3678         PR c++/42623
3679         * c-common.c (c_sizeof_or_alignof_type): Return error_mark_node
3680         for incomplete type.
3681
3682         PR c++/41788
3683         * stor-layout.c (finalize_record_size): Don't change TYPE_PACKED
3684         based on a warning flag.
3685
3686 2010-04-09  Richard Guenther  <rguenther@suse.de>
3687
3688         * tree-pretty-print.c (dump_generic_node): Dump TYPE_VECTOR_SUBPARTS.
3689
3690 2010-04-09  Iain Sandoe  <iains@gcc.gnu.org>
3691
3692         PR bootstrap/43684
3693         * varasm.c (default_assemble_visibility): Wrap vars that are
3694         set, but unused, by targets without GAS.
3695         * config/rs6000/rs6000.c: (paired_emit_vector_compare):
3696         Remove set, but unused, vars.
3697         (rs6000_legitimize_tls_address): Likewise.
3698         (altivec_expand_dst_builtin): Likewise.
3699         * config/darwin.c (machopic_classify_symbol): Likewise.
3700         (machopic_indirection_name): Likewise.
3701
3702 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
3703
3704         * config/i386/i386.md (DWI): New mode iterator.
3705         (S): New mode attribute.
3706         (shift_operand): Ditto.
3707         (shift_immediate_operand): Ditto.
3708         (ashl_input_operand): Ditto.
3709         (ashl<mode>3): Macroize expander from ashl{qi,hi,si,di,ti}3_1
3710         using SDWIM mode iterator.
3711         (*ashl<mode>3_doubleword): New insn_and_split_pattern.  Macroize
3712         pattern from *ashl{di,ti}3_1 and corresponding splitters using
3713         DWI mode iterator.
3714         (*ashl<mode>3_doubleword peephole2): Macroize peephole2 pattern
3715         from corresponding peephole2 patterns.
3716         (x86_shift<mode>_adj_1): Macroize expander from x86_shift_adj_1
3717         and x86_64_shift_adj_1 using SWI48 mode iterator.
3718         (x86_shift<mode>_adj_2): Ditto.
3719         (*ashldi3_1_rex64): Split TYPE_LEA pattern.
3720         (*ashl<mode>3_1): Macroize insn from *ashlsi3_1 and *ashldi3_1_rex64
3721         using SWI48 mode iterator.
3722         (*ashl<mode>3_cmp): Macroize insn from *ashl{qi,hi,si}3_cmp and
3723         *ashldi3_cmp_rex64 using SWI mode iterator.
3724         (*ashl<mode>3_cconly): Macroize insn from *ashl{qi,hi,si}3_cconly and
3725         *ashldi3_cconly_rex64 using SWI mode iterator.
3726         * config/i386/i386.c (ix86_split_ashl): Update for renamed
3727         x86_shift<mode>_adj_{1,2}.
3728         (ix86_split_ashr): Ditto.
3729         (ix86_split_lshr): Ditto.
3730
3731 2010-04-09  Richard Guenther  <rguenther@suse.de>
3732
3733         * target.h (builtin_conversion): Pass in input and output types.
3734         * targhooks.c (default_builtin_vectorized_conversion): Adjust.
3735         * targhooks.h (default_builtin_vectorized_conversion): Likewise.
3736         * tree-vect-stmts.c (vectorizable_conversion): Adjust.
3737         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): Adjust.
3738
3739         * config/i386/i386.c (ix86_vectorize_builtin_conversion): Adjust.
3740         Handle AVX modes.
3741         * config/rs6000/rs6000.c (rs6000_builtin_conversion): Adjust.
3742
3743 2010-04-09  Richard Guenther  <rguenther@suse.de>
3744
3745         PR target/43152
3746         * config/i386/sse.md (vcond<mode>): Handle AVX modes as well.
3747
3748 2010-04-09  Richard Guenther  <rguenther@suse.de>
3749
3750         * tree-vectorizer.h (struct _stmt_vec_info): Document
3751         that vectype is the type of the LHS.
3752         (supportable_widening_operation, supportable_narrowing_operation):
3753         Get both input and output vector types as arguments.
3754         (vect_is_simple_use_1): Declare.
3755         (get_same_sized_vectype): Likewise.
3756         * tree-vect-loop.c (vect_determine_vectorization_factor):
3757         Set STMT_VINFO_VECTYPE to the vector type of the def.
3758         (vectorizable_reduction): Adjust.
3759         * tree-vect-patterns.c (vect_recog_widen_mult_pattern):
3760         Adjust.  Specify the output vector type.
3761         (vect_pattern_recog_1): Adjust.
3762         * tree-vect-stmts.c (get_same_sized_vectype): New function.
3763         (vectorizable_call): Adjust.
3764         (vectorizable_conversion): Likewise.
3765         (vectorizable_operation): Likewise.
3766         (vectorizable_type_demotion): Likewise.
3767         (vectorizable_type_promotion): Likewise.
3768         (vect_analyze_stmt): Set STMT_VINFO_VECTYPE to the vector type of
3769         the def.
3770         (vect_is_simple_use_1): New function.
3771         (supportable_widening_operation): Get both input and output
3772         vector types.
3773         (supportable_narrowing_operation): Likewise.
3774         * tree-vect-slp.c (vect_schedule_slp_instance): Adjust.
3775
3776 2010-04-09  Kai Tietz  <kai.tietz@onevision.com>
3777
3778         * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Add
3779         __thiscall and _thiscall as predefined macros.
3780         * config/i386/i386.c (ix86_handle_cconv_attribute): Add
3781         thiscall attribute handling.
3782         (ix86_comp_type_attributes): Likewise.
3783         (ix86_function_regparm): Likewise.
3784         (ix86_return_pops_args): Likewise.
3785         (init_cumulative_args): Likewise.
3786         (find_drap_reg): Likewise.
3787         (ix86_static_chain): Likewise.
3788         (x86_this_parameter): Likewise.
3789         (x86_output_mi_thunk): Likewise.
3790         (ix86_attribute_table): Add description for thiscall attribute.
3791         * config/i386/i386.h (ix86_args): Adjust comment for member fastcall.
3792         * doc/extend.texi: Add documentation for thiscall.
3793
3794 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3795
3796         PR c++/28584
3797         * c.opt (Wint-to-pointer-cast): Available in C++.
3798         * doc/invoke.texi (Wint-to-pointer-cast): Available in C++.
3799
3800 2010-04-08  Eric Botcazou  <ebotcazou@adacore.com>
3801
3802         * tree.h (TREE_ADDRESSABLE): Document its effect for function types.
3803         * calls.c (expand_call): Pass the function type to aggregate_value_p.
3804         * function.c (aggregate_value_p): Do not honor DECL_BY_REFERENCE on
3805         the target function of a CALL_EXPR.  Honor TREE_ADDRESSABLE on the
3806         function type instead.  Reorder and simplify checks.
3807
3808         * gimplify.c (gimplify_modify_expr_rhs) <WITH_SIZE_EXPR>: New case.
3809
3810 2010-04-08  Jing Yu  <jingyu@google.com>
3811             Zdenek Dvorak  <ook@ucw.cz>
3812
3813         PR tree-optimization/42720
3814         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Move one-time
3815         loop unswitch conditions here from ...
3816         (tree_unswitch_single_loop): ... here.
3817
3818 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
3819
3820         * tree-if-conv.c: Fix comments and simplify logic.
3821
3822 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
3823
3824         * tree-if-conv.c (if_convertible_loop_p): Remove unused parameter.
3825         (tree_if_conversion): Same.  Update call to if_convertible_loop_p.
3826         (main_tree_if_conversion): Update call to tree_if_conversion.
3827
3828 2010-04-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3829
3830         PR 42485
3831         * doc/invoke.texi (-b,-V): Delete.
3832         * doc/tm.texi: Do not mention -b.
3833         * gcc.c (display_help): Delete -b and -V.
3834         (process_command): Delete -b and -V.
3835         * gcc.h (DEFAULT_SWITCH_TAKES_ARG): Delete -b and -V.
3836
3837 2010-04-08  Christian Borntraeger  <borntraeger@de.ibm.com>
3838             Wolfgang Gellerich  <gellerich@de.ibm.com>
3839
3840         Implement target hook for loop unrolling
3841         * target.h (loop_unroll_adjust): Add a new target hook function.
3842         * target-def.h (TARGET_LOOP_UNROLL_ADJUST): Likewise.
3843         * doc/tm.texi (TARGET_LOOP_UNROLL_ADJUST): Document it.
3844         * config/s390/s390.c (TARGET_LOOP_UNROLL_ADJUST): Define it.
3845         (s390_loop_unroll_adjust): Implement the new target hook for s390.
3846         * loop-unroll.c (decide_unroll_runtime_iterations): Call loop unroll
3847         target hook.
3848         (decide_unroll_stupid): Likewise.
3849
3850 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3851
3852         PR target/43643
3853         * config/i386/gmon-sol2.c [__x86_64__]: Properly restore %rcx.
3854
3855 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3856
3857         * doc/install.texi (Specific, i?86-*-solaris2.10): Fix grammar.
3858         (Specific, *-*-solaris2*): Likewise.
3859         Don't prefer Sun as over GNU as.
3860
3861 2010-04-08  Wolfgang Gellerich  <gellerich@de.ibm.com>
3862
3863         * config/s390/s390.c (override_options): Adjust the z10
3864           defaults for max-unroll-times, max-completely-peeled-insns
3865           and max-completely-peel-times.
3866
3867 2010-04-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3868
3869         * config/s390/s390.c (s390_expand_movmem): Issue prefetch
3870         instructions for z10.
3871         (s390_expand_setmem): Likewise.
3872         (s390_expand_cmpmem): Likewise.
3873
3874 2010-04-08  Richard Guenther  <rguenther@suse.de>
3875
3876         PR tree-optimization/43679
3877         * tree-ssa-pre.c (eliminate): Only propagate copies.
3878
3879 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
3880
3881         PR bootstrap/43681
3882         * expr.c (block_move_libcall_safe_for_call_parm): Avoid
3883         set but not used variable warning.
3884
3885 2010-04-08  Wei Guozhi  <carrot@google.com>
3886
3887         PR target/41653
3888         * config/arm/arm.c (thumb1_size_rtx_costs): New function.
3889         (arm_size_rtx_costs): Call the new function when optimized for size.
3890
3891 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
3892
3893         PR debug/43670
3894         * cfgexpand.c (expand_debug_expr): If for non-NULL offset
3895         op0 is not a MEM, just return NULL instead of assertion
3896         failure.
3897         (discover_nonconstant_array_refs): Don't walk debug stmts.
3898
3899 2010-04-08  Doug Kwan  <dougkwan@google.com>
3900
3901         * configure.ac: Recognize gold and do not use its version number
3902         to test ld features.
3903         * configure: Regenerate.
3904
3905 2010-04-08  Maxim Kuvyrkov  <maxim@codesourcery.com>
3906
3907         PR middle-end/40815
3908         * tree-ssa-reassoc.c (broken_up_substracts): Rename to plus_negates.
3909         (negate_value): Move code to push elements to broken_up_substracts ...
3910         (eliminate_plus_minus_pair): ... here.  Push operands that have no
3911         negative pair to plus_negates.
3912         (repropagate_negates, init_reassoc, fini_reassoc): Update.
3913
3914 2010-04-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3915
3916         * doc/install.texi (Configuration): Move description of
3917         --enable-lto, --with-libelf*, --enable-gold from Java section to
3918         general section.
3919
3920         * doc/generic.texi (Working with declarations)
3921         (Function Properties, C and C++ Trees): Fix typos.
3922         * doc/sourcebuild.texi (Top Level): Likewise.
3923
3924 2010-04-07  Jakub Jelinek  <jakub@redhat.com>
3925
3926         PR c/18624
3927         * tree.h (DECL_READ_P): Define.
3928         (struct tree_decl_common): Add decl_read_flag.
3929         * c-decl.c (pop_scope): If TREE_USED but !DECL_READ_P, issue
3930         a set but not used warning.
3931         (merge_decls): Merge DECL_READ_P flag.
3932         (finish_decl, build_compound_literal): Set DECL_READ_P flag.
3933         (finish_function): Issue -Wunused-but-set-parameter diagnostics.
3934         * c-common.c (handle_used_attribute, handle_unused_attribute):
3935         Likewise.
3936         * c-tree.h (default_function_array_read_conversion, mark_exp_read):
3937         New prototypes.
3938         * c-typeck.c (default_function_array_read_conversion, mark_exp_read):
3939         New functions.
3940         (default_conversion, c_process_expr_stmt): Call mark_exp_read.
3941         * c-parser.c (c_parser_initializer, c_parser_expr_no_commas,
3942         c_parser_binary_expression, c_parser_cast_expression,
3943         c_parser_expr_list, c_parser_omp_atomic, c_parser_omp_for_loop):
3944         Call default_function_array_read_conversion instead of
3945         default_function_array_conversion where needed.
3946         (c_parser_unary_expression, c_parser_conditional_expression,
3947         c_parser_postfix_expression_after_primary, c_parser_initelt):
3948         Likewise.  Call mark_exp_read where needed.
3949         (c_parser_statement_after_labels, c_parser_asm_operands,
3950         c_parser_typeof_specifier, c_parser_sizeof_expression,
3951         c_parser_alignof_expression, c_parser_initval): Call mark_exp_read
3952         where needed.
3953         * common.opt (Wunused-but-set-variable, Wunused-but-set-parameter):
3954         New.
3955         * toplev.c (warn_unused_but_set_variable): Default to warn_unused.
3956         (warn_unused_but_set_parameter): Default to warn_unused
3957         && extra_warnings.
3958         * doc/invoke.texi: Document -Wunused-but-set-variable and
3959         -Wunused-but-set-parameter.
3960
3961         * tree-ssa-pre.c (my_rev_post_order_compute): Remove set but not
3962         used count variable.
3963         * genemit.c (gen_expand, gen_split): Avoid set but not used warnings
3964         when operandN variables aren't used in the body of the expander
3965         or splitter.
3966         * tree-outof-ssa.c (FOR_EACH_ELIM_GRAPH_SUCC,
3967         FOR_EACH_ELIM_GRAPH_PRED): Avoid set but not used warnings.
3968         * tree-ssa-operands.h (FOR_EACH_SSA_TREE_OPERAND): Likewise.
3969         * tree-flow.h (FOR_EACH_IMM_USE_FAST, FOR_EACH_IMM_USE_STMT,
3970         FOR_EACH_IMM_USE_ON_STMT): Likewise.
3971         * tree.h (FOR_EACH_CONSTRUCTOR_ELT): Likewise.
3972         * tree.c (PROCESS_ARG): Likewise.
3973
3974 2010-04-07  Simon Baldwin  <simonb@google.com>
3975
3976         * diagnostic.h (diagnostic_override_option_index): New macro to
3977         set a diagnostic's option_index.
3978         * c-tree.h (c_cpp_error): Add warning reason argument.
3979         * opts.c (_warning_as_error_callback): New.
3980         (register_warning_as_error_callback): Store callback for
3981         warnings enabled via enable_warning_as_error.
3982         (enable_warning_as_error): Call callback, minor code tidy.
3983         * opts.h (register_warning_as_error_callback): Declare.
3984         * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in
3985         response to -Werror=.
3986         (c_common_init_options): Register warning_as_error_callback in opts.c.
3987         * common.opt: Add -Wno-cpp option.
3988         * c-common.c (struct reason_option_codes_t): Map cpp warning
3989         reason codes to gcc option indexes.
3990         * (c_option_controlling_cpp_error): New function, lookup the gcc
3991         option index for a cpp warning reason code.
3992         * (c_cpp_error): Add warning reason argument, call
3993         c_option_controlling_cpp_error for diagnostic_override_option_index.
3994         * doc/invoke.texi: Document -Wno-cpp.
3995
3996 2010-04-07  Richard Guenther  <rguenther@suse.de>
3997
3998         * ipa-reference.c (mark_load): Use get_base_address.
3999         (mark_store): Likewise.
4000
4001         * tree-ssa-ccp.c (gimplify_and_update_call_from_tree): Avoid
4002         inserting GIMPLE_NOPs into the IL.
4003         * tree-ssa-structalias.c (get_constraint_for_component_ref):
4004         Explicitly strip handled components and indirect references.
4005
4006         * fold-const.c (fold_unary_loc): Do not strip qualifiers when
4007         folding address expressions.
4008         * gimple.c (gimple_ior_addresses_taken_1): Use get_base_address.
4009         * tree-ssa-alias.c (decl_refs_may_alias_p): Do not use
4010         operand_equal_p to compare decls.
4011         (ptr_deref_may_alias_decl_p): Likewise.