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Define PREFETCH_MOD_TO_UNROLL_FACTOR_RATIO heuristic.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2010-05-17  Changpeng Fang  <changpeng.fang@amd.com>
2
3         * tree-ssa-loop-prefetch.c (PREFETCH_MOD_TO_UNROLL_FACTOR_RATIO): New.
4         (schedule_prefetches): Do not generate a prefetch if the unroll factor
5         is far from what is required by the prefetch.
6
7 2010-05-17  Jan Hubicka  <jh@suse.cz>
8
9         * ipa-cp.c (ipcp_update_callgraph): Use ipa_is_param_used.
10         (ipcp_estimate_growth): Likewise.
11         (ipcp_const_param_count): Likewise.
12         (ipcp_insert_stage): Likewise.
13         * ipa-prop.c (visit_load_for_mod_analysis): New function.
14         (visit_store_addr_for_mod_analysis): Set used flag.
15         (ipa_detect_param_modifications): Set used flag for SSE params;
16         update use of walk_stmt_load_store_addr_ops.
17         (ipa_print_node_params): Print used flag.
18         (ipa_write_node_info): Stream used flag.
19         (ipa_read_node_info): Likewise.
20         * ipa-prop.h (struct ipa_param_descriptor): Add used field.
21         (ipa_is_param_used): New function.
22         (lto_ipa_fixup_call_notes): Remove unused declaration.
23
24 2010-05-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
25
26         PR target/44074
27         * configure.ac (HAVE_AS_IX86_REP_LOCK_PREFIX): New test.
28         * configure: Regenerate.
29         * config.in: Regenerate.
30         * config/i386/i386.c (print_operand) <case ;>: Also print ; if
31         !HAVE_AS_IX86_REP_LOCK_PREFIX.
32         Don't emit whitespace.
33         * config/i386/i386.md (*rep_movdi_rex64): Use {%;} after rep.
34         (*rep_movsi): Likewise.
35         (*rep_movsi_rex64): Likewise.
36         (*rep_movqi): Likewise.
37         (*rep_movqi_rex64): Likewise.
38         (*rep_stosdi_rex64): Likewise.
39         (*rep_stossi): Likewise.
40         (*rep_stossi_rex64): Likewise.
41         (*rep_stosqi): Likewise.
42         (*rep_stosqi_rex64): Likewise.
43         (*cmpstrnqi_nz_1): Use {%;} after repz.
44         (*cmpstrnqi_nz_rex_1): Likewise.
45         (*cmpstrnqi_1): Likewise.
46         (*cmpstrnqi_rex_1): Likewise.
47         (*strlenqi_1): Use {%;} after repnz.
48         (*strlenqi_rex_1): Likewise.
49         * config/i386/sync.md (memory_barrier_nosse): Replace {%;| } by {%;} .
50         (*sync_compare_and_swap<mode>): Likewise.
51         (sync_double_compare_and_swap<mode>): Likewise.
52         (*sync_double_compare_and_swapdi_pic): Likewise.
53         (sync_old_add<mode>): Likewise.
54         (sync_add<mode>): Likewise.
55         (sync_sub<mode>): Likewise.
56         (sync_<code><mode>): Likewise.
57
58 2010-05-17  Martin Jambor  <mjambor@suse.cz>
59
60         * cgraph.h (cgraph_indirect_call_info): New fields anc_offset,
61         otr_token and polymorphic.
62         * cgraph.c (cgraph_create_indirect_edge): Inilialize the above fields.
63         (cgraph_clone_edge): Copy the above fields.
64         * tree.c (get_binfo_at_offset): New function.
65         * tree.h (get_binfo_at_offset): Declare.
66         * ipa-prop.h (enum jump_func_type): Added known_type jump function
67         type, reordered items, updated comments.
68         (union jump_func_value): Added base_type field, reordered fields.
69         (enum ipa_lattice_type): Moved down in the file.
70         (struct ipa_param_descriptor): New field polymorphic.
71         (ipa_is_param_polymorphic): New function.
72         * ipa-prop.c: Include gimple.h and gimple-fold.h.
73         (ipa_print_node_jump_functions): Print known type jump functions.
74         (compute_complex_pass_through): Renamed to...
75         (compute_complex_assign_jump_func): this.
76         (compute_complex_ancestor_jump_func): New function.
77         (compute_known_type_jump_func): Likewise.
78         (compute_scalar_jump_functions): Create known type and complex ancestor
79         jump functions.
80         (ipa_note_param_call): New parameter polymorphic, set the corresponding
81         flag in the call note accordingly.
82         (ipa_analyze_call_uses): Renamed to...
83         (ipa_analyze_indirect_call_uses): this.  New parameter target, define
84         variable var only in the block where it is used.
85         (ipa_analyze_virtual_call_uses): New function.
86         (ipa_analyze_call_uses): Likewise.
87         (combine_known_type_and_ancestor_jfs): Likewise.
88         (update_jump_functions_after_inlining): Implemented handling of a
89         number of new jump function types combination.
90         (print_edge_addition_message): Removed.
91         (make_edge_direct_to_target): New function.
92         (try_make_edge_direct_simple_call): Likewise.
93         (try_make_edge_direct_virtual_call): Likewise.
94         (update_call_notes_after_inlining): Renamed to...
95         (update_indirect_edges_after_inlining): this.  Moved edge creation for
96         indirect calls to try_make_edge_direct_simple_call, also calls
97         try_make_edge_direct_virtual_call for virtual calls.
98         (ipa_print_node_params): Changed the header message.
99         (ipa_write_jump_function): Stream also known type jump functions.
100         (ipa_read_jump_function): Likewise.
101         (ipa_write_indirect_edge_info): Stream new fields in
102         cgraph_indirect_call_info.
103         (ipa_read_indirect_edge_info): Likewise.
104         * Makefile.in (ipa-prop.o): Add dependency to GIMPLE_H and
105         GIMPLE_FOLD_H.
106
107 2010-05-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
108
109         * config/i386/sol2.h (TARGET_SUN_TLS): Remove duplicate definition.
110
111 2010-05-17  Nathan Froyd  <froydnj@codesourcery.com>
112
113         * tree.h (CALL_EXPR_ARGS): Delete.
114         (call_expr_arglist): Delete.
115         * tree.c (call_expr_arglist): Delete.
116         * builtins.c (fold_call_expr): Pass the whole CALL_EXPR to
117         targetm.fold_builtin.
118         * config/alpha/alpha.c (alpha_fold_builtin): Rename arglist parameter.
119         Rewrite iteration to work on call_expr_nargs rather than TREE_CHAIN.
120         * config/picochip/picochip.c (picochip_expand_builtin_2op): Rename
121         arglist parameter.  Use CALL_EXPR_ARG.
122         (picochip_expand_builtin_3op): Likewise.
123         (picochip_expand_builtin_2opvoid): Likewise.
124         (picochip_expand_array_get): Likewise.
125         (picochip_expand_array_put): Likewise.
126         (picochip_expand_array_testport): Likewise.
127         (picochip_expand_builtin): Don't call CALL_EXPR_ARGS.  Pass exp
128         rather than arglist.
129         * config/rx/rx.c (rx_expand_builtin): Call call_expr_nargs instead of
130         CALL_EXPR_ARGS.
131         * config/sparc/sparc.c (sparc_fold_builtin): Use CALL_EXPR_ARG rather
132         than TREE_VALUE and TREE_CHAIN.
133         * config/xtensa/xtensa.c (xtensa_fold_builtin): Likewise.
134         * doc/tm.texi (TARGET_FOLD_BUILTIN): Pass CALL_EXPR tree instead of
135         the arglist.
136
137 2010-05-17  Jakub Jelinek  <jakub@redhat.com>
138
139         PR bootstrap/42347
140         * cfglayout.c (fixup_reorder_chain): Allow returnjump_p
141         to have no fallthru edge.
142
143         PR middle-end/44102
144         * cfgcleanup.c (try_optimize_cfg): When removing trivially empty
145         bb with no successors, move footer whenever in IR_RTL_CFGLAYOUT
146         mode, not just when CLEANUP_CFGLAYOUT, and when in IR_RTL_CFGRTL
147         add BARRIER after previous bb if needed.
148
149 2010-05-17  Nathan Froyd  <froydnj@codesourcery.com>
150  
151         * tree.c (build_function_type_list_1): Remove bogus assert condition.
152  
153 2010-05-17  Alan Modra  <amodra@gmail.com>
154
155         * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Delete
156         unnecessary prototype.  Replace copy_r12 and copy_r11 flag params
157         with copy_reg rtx param.
158         (rs6000_emit_prologue): Update rs6000_emit_allocate_stack calls.
159         Correct cases where code for ABI_V4 did not initialise the reg
160         used to access frame.  Also leave frame_reg_rtx as sp for large
161         frames that save no regs.
162
163 2010-05-17  Martin Jambor  <mjambor@suse.cz>
164
165         PR middle-end/44133
166         * tree-sra.c (create_access_replacement): New parameter rename, mark
167         the replaement for renaming only when it is true.
168         (get_access_replacement): Pass true in the rename parameter of
169         create_access_replacement.
170         (get_unrenamed_access_replacement): New function.
171         (replace_uses_with_default_def_ssa_name): New parameter racc, get the
172         replacement declaration from it.
173
174 2010-05-17  Bernd Schmidt  <bernds@codesourcery.com>
175
176         * function.c (try_fit_stack_local, add_frame_space): New static
177         functions.
178         (assign_stack_local_1): Use them.  Look for opportunities to use
179         space previously wasted on alignment.
180         * function.h (struct frame_space): New.
181         (struct rtl_data): Add FRAME_SPACE_LIST member.
182         * reload1.c (something_was_spilled): New static variable.
183         (alter_reg): Set it.
184         (reload): Test it in addition to testing if the frame size changed.
185
186 2010-05-17  Christian Borntraeger  <borntraeger@de.ibm.com>
187
188         * config/s390/s390.c: Define sane prefetch settings and activate
189         flag_prefetch_loop_arrays on -O3.
190         * config/s390/s390.h: Declare that read can use write prefetch.
191
192 2010-05-17  Jakub Jelinek  <jakub@redhat.com>
193
194         * lto-streamer-out.c (lto_output): Fix --enable-checking=release
195         build.
196
197 2010-05-16  Jan Hubicka  <jh@suse.cz>
198
199         * ipa-cp.c (ipcp_versionable_function_p): Walk cgraph edges instead of
200         function body; do not check stdarg field of struct function.
201
202 2010-05-16  Jan Hubicka  <jh@suse.cz>
203
204         * cgraph.c (dump_cgraph_node): Dump versionable flag.
205         * cgraph.h (cgraph_local_info): Add versionable flag.
206         * ipa-cp.c (ipcp_analyze_node): Set versionable flag.
207         (ipcp_versionable_function_p): Use it.
208         * lto-cgraph.c (lto_output_node, input_overwrite_node): Stream
209         versionable flag.
210
211 2010-05-16  Jan Hubicka  <jh@suse.cz>
212
213         * cgraph.c (cgraph_clone_node): Take decl argument and insert
214         clone into hash when it is different from orig.
215         (cgraph_create_virtual_clone): Update use of cgraph_clone_node.
216         * cgraph.h (cgraph_clone_node): Update prototype.
217         * lto-cgrpah.c (lto_cgraph_encoder_new): Create body map.
218         (lto_cgraph_encoder_delete): Delete body map.
219         (lto_cgraph_encoder_size): Move to header.
220         (lto_cgraph_encoder_encode_body_p,
221         lto_set_cgraph_encoder_encode_body): New.
222         (lto_output_node): Do not take written_decls argument; output clone_of
223         pointer.
224         (add_node_to): Add include_body_argument; call
225         lto_set_cgraph_encoder_encode_body on master of the clone.
226         (add_references): Update use of add_node_to.
227         (compute_ltrans_boundary): Likewise.
228         (output_cgraph): Do not create written_decls bitmap.
229         (input_node): Take nodes argument; stream in clone_of correctly.
230         (input_cgraph_1): Update use of input_node.
231         * lto-streamer-out.c (lto_output): Use encoder info to decide
232         what bodies to output.
233         * ipa-inline.c (cgraph_clone_inlined_nodes,
234         cgraph_decide_recursive_inlining): Update call of cgraph_clone_node.
235         * lto-streamer.h (lto_cgraph_encoder_d): Add body.
236         (lto_cgraph_encoder_size): Define here.
237         (lto_cgraph_encoder_encode_body_p, lto_varpool_encoder_encode_body_p):
238         Declare.
239
240 2010-05-16  Richard Guenther  <rguenther@suse.de>
241
242         * doc/invoke.texi (-fipa-struct-reorg): Do not mention
243         -fipa-type-escape.
244         * ipa-type-escape.c (gate_type_escape_vars): Run when
245         -fipa-struct-reorg runs.
246         * opts.c (decode_options): Do not unset flag_ipa_type_escape.
247         * common.opt (fipa-type-escape): Remove.
248
249 2010-05-16  Eric Botcazou  <ebotcazou@adacore.com>
250
251         * opts.c (handle_option): Call into LTO streamer only if ENABLE_LTO.
252         (decode_options): Likewise.
253         * Makefile.in (opts.o): Add dependency on LTO_STREAMER_H.
254
255 2010-05-16  Jan Hubicka  <jh@suse.cz>
256
257         * ipa.c (function_and_variable_visibility): Also bring local all
258         aliases.
259
260 2010-05-16  Richard Guenther  <rguenther@suse.de>
261
262         * alias.c (nonoverlapping_memrefs_p): Remove use of
263         IPA type-escape information.
264
265 2010-05-16  Joseph Myers  <joseph@codesourcery.com>
266
267         * c-common.c (c_common_reswords): Add _Static_assert for C.
268         * c-parser.c (c_token_starts_declaration,
269         c_parser_next_token_starts_declaration,
270         c_parser_static_assert_declaration_no_semi,
271         c_parser_static_assert_declaration): New.
272         (c_parser_declaration_or_fndef): Add parameter static_assert_ok.
273         Handle static assertions if static_assert_ok.
274         (c_parser_external_declaration, c_parser_declaration_or_fndef,
275         c_parser_compound_statement_nostart, c_parser_label,
276         c_parser_for_statement, c_parser_objc_methodprotolist,
277         c_parser_omp_for_loop): All callers of
278         c_parser_declaration_or_fndef changed.
279         (c_parser_struct_declaration): Handle static assertions.
280         (c_parser_compound_statement_nostart): Use
281         c_parser_next_token_starts_declaration and
282         c_token_starts_declaration to detect start of declarations.
283         (c_parser_label, c_parser_for_statement, c_parser_omp_for_loop):
284         Likewise.
285
286 2010-05-16  Anatoly Sokolov  <aesok@post.ru>
287
288         * config/mmix/mmix.h (FUNCTION_VALUE, FUNCTION_OUTGOING_VALUE,
289         LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Remove macros.
290         * config/mmix/mmix.c (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE,
291         TARGET_FUNCTION_VALUE_REGNO_P): Define.
292         (mmix_function_outgoing_value): Rename to...
293         (mmix_function_value): ...this. Make static. Add 'outgoing' argument.
294         (mmix_function_value_regno_p): Make static.
295         (mmix_libcall_value): New function.
296         * config/mmix/mmix-protos.h (mmix_function_outgoing_value,
297         mmix_function_value_regno_p): Remove declaration.
298
299 2010-05-16  Eric Botcazou  <ebotcazou@adacore.com>
300
301         * tree.c (build_common_builtin_nodes): Always clear TREE_NOTHROW on
302         BUILT_IN_ALLOCA if stack checking is enabled.
303
304 2010-05-16  Richard Guenther  <rguenther@suse.de>
305
306         * var-tracking.c (vars_copy_1): Inline ...
307         (vars_copy): ... here.  Use FOR_EACH_HTAB_ELEMENT.
308         (variable_union): Use FOR_EACH_HTAB_ELEMENT.  Merge asserts.
309         (variable_merge_over_cur): Adjust.  Merge asserts.
310         (variable_merge_over_src): Likewise.
311         (dataflow_set_merge): Use FOR_EACH_HTAB_ELEMENT.
312         (variable_post_merge_new_vals): Merge asserts.
313         (variable_post_merge_perm_vals): Likewise.
314         (find_mem_expr_in_1pdv): Likewise.
315         (dataflow_set_different_value): Remove.
316         (onepart_variable_different_p): Merge asserts.
317         (variable_different_p): Likewise.
318         (dataflow_set_different_1): Inline ...
319         (dataflow_set_different): ... here.  Use FOR_EACH_HTAB_ELEMENT.
320         (emit_notes_for_differences_1): Merge asserts.
321
322 2010-05-16  Richard Guenther  <rguenther@suse.de>
323
324         * lto-symtab.c (lto_symtab_entry_hash): Use IDENTIFIER_HASH_VALUE.
325         * optabs.c (libfunc_decl_hash): Likewise.
326         * varasm.c (emutls_decl): Likewise.
327
328 2010-05-16  Steven Bosscher  <steven@gcc.gnu.org>
329
330         * c-decl.c: Don't include gimple.h.
331         (merge_decls): Do not copy gimple_body.
332
333 2010-05-15  Jason Merrill  <jason@redhat.com>
334
335         * c.opt: Add -fnothrow-opt.
336
337 2010-05-15  Jan Hubicka  <jh@suse.cz>
338
339         * ipa-prop.c (ipa_prop_read_section): Add sanity check that node is
340         analyzed.
341         * passes.c (ipa_write_summaries): Write all analyzed nodes.
342
343 2010-05-15  Steven Bosscher  <steven@gcc.gnu.org>
344
345         * vecir.h: New file with VEC primitives for tree, gimple, and rtl.
346         * Makefile.in: Add it.
347         Fix all other Makefile dependencies for changes below.
348         * tree.h: Include it instead of defining VEC primitives here.
349         * gimple.h: Likewise.
350         * rtl.h: Likewise.
351         * tree-inline.h: Inlclude vecir.h instead of gimple.h.
352         * except.h: Include vecir.h, break dependence on tree.h.
353
354         * gimplify.c (append_to_statement_list_1, append_to_statement_list):
355         Move from here...
356         * tree-iterator.c: ...to here.
357         * tree-iterator.h: Fix file introduction comment.  Add extern markers.
358
359         * c-lex.c: Include fixed-value.h instead of rtl.h.  Do not include
360         tm_p.h.
361         * c-cppbuiltin.c: Explain why debug.h and tm_p.h are included.
362         * c-objc-common.h: Do not include tm.h, rtl.h, insn-config.h,
363         integrate.h, function.h, toplev.h, tree-inline.h, ggc.h,
364         tree-mudflap.h, and target.h.
365         * c-semantics.c: Do not include except.h, ggc.h, rtl.h, timevar.h,
366         predict.h, tree-inline.h, gimple.h, and langhooks.h.
367         * c-decl.c: Do not include expr.h, ggc.h, libfuncs.h, except.h.
368         Add FIXME for why gimple.h is still included (should be unnecessary
369         since GCC 4.5 gimplification unit-at-a-time).
370         * c-typeck.c: Do not include rtl.h, tm_p.h, ggc.h, and gimple.h.
371         * c-pragma.c: Add FIXME for why function.h needs to be included just
372         for cfun, at front-end level.
373         Add note that REGISTER_TARGET_PRAGMAS should probably be a target hook.
374         Do not include ggc.h, but include vecprim.h for VEC(char).
375         * c-opts.c: Do not include tm.h, tree-inline.h, and tm_p.h.
376         Explain why target.h is included.
377         * c-omp.h: Do not include tm.h, function.h, and bitmap.h.
378         Explain why gimple.h is included.
379         * c-ppoutput.c: Do not include tm.h.
380         * c-common.c: Do not include gimple.h.  Explain why expr.h is included.
381         * c-parses.c: Explain why rtl.h is included, and that this (and only
382         this) is also why tm.h must be included.
383         Do not include except.h.
384         * c-lang.c: Do not include ggc.h.
385
386 2010-05-15  Uros Bizjak  <ubizjak@gmail.com>
387
388         * targhooks.c (GO_IF_MODE_DEPENDENT_ADDRESS): Use CONST_CAST_RTX.
389
390 2010-05-15  Joseph Myers  <joseph@codesourcery.com>
391
392         * c-decl.c (grokfield): Allow typedefs for anonymous structs and
393         unions by default if those structs and unions have no tags.  Do
394         not condition anonymous struct and unions handling on flag_iso.
395         Allow anonymous structs and unions for C1X.
396         (finish_struct): Do not diagnose lack of named fields when
397         anonymous structs and unions present for C1X.  Accept flexible
398         array members in structure with anonymous structs or unions but no
399         directly named fields.
400         * doc/extend.texi (Unnamed Fields): Update.
401
402 2010-05-15  Eric Botcazou  <ebotcazou@adacore.com>
403
404         * gimple.h (compare_field_offset): Rename into...
405         (gimple_compare_field_offset): ...this.
406         * gimple.c (compare_field_offset): Rename into...
407         (gimple_compare_field_offset): ...this.  Compare the full access if
408         the offset is self-referential.
409         (gimple_types_compatible_p): Adjust for above renaming.
410         * lto-streamer-in.c (input_gimple_stmt): Likewise.  Also compare the
411         DECL_NONADDRESSABLE_P flag of fields before merging them.
412
413 2010-05-15  Nathan Froyd  <froydnj@codesourcery.com>
414
415         * tree.h (ctor_to_list): Delete.
416         * tree.c (ctor_to_list): Delete.
417
418 2010-05-15  Jan Hubicka  <jh@suse.cz>
419
420         * ipa-reference.c: Include toplev.h
421         (is_proper_for_analysis): Only add to all_module_statics
422         if it is allocated.
423         (write_node_summary_p, stream_out_bitmap,
424         ipa_reference_write_optimization_summary,
425         ipa_reference_read_optimization_summary): New.
426         (struct ipa_opt_pass_d pass_ipa_reference): Add
427         optimization summary streaming.
428         * lto-cgraph.c (referenced_from_this_partition_p,
429         reachable_from_this_partition_p): New functions.
430         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1,
431         call_may_clobber_ref_p_1): Ask ipa-reference even for public vars.
432         * opts.c (decode_options): Enable ipa_reference.
433         * Makefile.in (ipa-reference.o): Add toplev.h dependency.
434         * lto-streamer.h (referenced_from_this_partition_p,
435         reachable_from_this_partition_p): Declare.
436
437 2010-05-15  Richard Guenther  <rguenther@suse.de>
438
439         PR tree-optimization/44038
440         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Avoid
441         taking the address of a V_C_E of a constant.
442
443 2010-05-14  Jan Hubicka  <jh@suse.cz>
444
445         * tree.h (memory_identifier_string): Remove.
446         * ipa-reference.c: Update comment; do not include gt-ipa-reference.h
447         (ipa_reference_global_vars_info_d): Remove statics_not_read and
448         statics_not_written.
449         (ipa_reference_optimization_summary_d): New structure.
450         (ipa_reference_optimization_summary_t): New type and vector.
451         (ipa_reference_vars_info_d): Embedd structures instead of using
452         pointers.
453         (reference_vars_to_consider): Remove out of GGC space.
454         (module_statics_escape): Remove.
455         (global_info_obstack): Rename to ...
456         (optimization_summary_obstack): ... this one.
457         (initialization_status_t): Remove.
458         (memory_identifier_string): Remove.
459         (get_reference_vars_info): Fix indenting.
460         (set_reference_vars_info): Likewise.
461         (get_reference_optimization_summary): New.
462         (set_reference_optimization_summary): New.
463         (get_global_reference_vars_info): Remove.
464         (ipa_reference_get_read_global): Remove.
465         (ipa_reference_get_written_global): Remove.
466         (ipa_reference_get_not_read_global): Update.
467         (ipa_reference_get_not_written_global): Update.
468         (is_proper_for_analysis): Outlaw addressable.
469         (propagate_bits): Update for new datastructures.
470         (analyze_variable): Remove.
471         (init_function_info): Update for new datastructures.
472         (clean_function_local_data): Remove.
473         (clean_function): Remove.
474         (copy_global_bitmap): Use optimizations_summary_obstack.
475         (duplicate_node_data): Duplicate optimization summary only.
476         (remove_node_data): Remove optimization summary only.
477         (generate_summary): Do not analyze variables; do not compute
478         module_statics_escape; do not prune solutions by it.
479         (read_write_all_from_decl): Fix typos in comments.
480         (propagate): Doscover readonly and nonaddressable first;
481         update for new datastructures; share global bitmaps.
482         * ipa-reference.h (ipa_reference_get_read_global,
483         ipa_reference_get_written_global): Remove.
484         * ipa-pure-const.c (check_stmt): Do not use memory_identifier_string.
485         * Makefile.in: Remove ipa-refereference from GT files.
486
487 2010-05-14  Jakub Jelinek  <jakub@redhat.com>
488
489         PR debug/44112
490         * dwarf2out.c (resolve_one_addr): Check TREE_ASM_WRITTEN
491         for all SYMBOL_REF_DECLs.
492
493 2010-05-14  Jan Hubicka  <jh@suse.cz>
494
495         * cgraph.h (ipa_discover_readonly_nonaddressable_vars): Declare.
496         (varpool_all_refs_explicit_p): New inline function.
497         * ipa-reference.c: Update comment.
498         (module_statics_written): Remove.
499         (get_static_decl): Remove.
500         (ipa_init): Do not initialize module_statics_written.
501         (analyze_function): Likewise.
502         (generate_summary): Likewise; do not compute module_statics_readonly
503         and do not update variable flags.
504         (propagate): Call ipa_discover_readonly_nonaddressable_vars.
505         * ipa.c: Inlucde flags.h
506         (cgraph_local_node_p): New.
507         (cgraph_remove_unreachable_nodes): Return early when not optimizing;
508         promote functions to local.
509         (ipa_discover_readonly_nonaddressable_vars): New function.
510         (function_and_variable_visibility): Use cgraph_local_node_p.
511         * varpool.c (varpool_finalize_decl): Set force_output for
512         DECL_PRESERVE_P vars.
513
514 2010-05-14  Jan Hubicka  <jh@suse.cz>
515
516         * ipa.c (cgraph_remove_unreachable_nodes): Revert accidental commit.
517
518 2010-05-14  Richard Guenther  <rguenther@suse.de>
519
520         PR tree-optimization/44119
521         * tree-ssa-pre.c (eliminate): Properly mark replacement of
522         a PHI node necessary.
523
524 2010-05-14  Eric Botcazou  <ebotcazou@adacore.com>
525
526         * tree.h (TREE_ADDRESSABLE): Remove bogus usage for FIELD_DECL.
527
528 2010-05-14  Jason Merrill  <jason@redhat.com>
529
530         PR c++/44127
531         * gimple.h (enum gf_mask): Add GF_CALL_NOTHROW.
532         (gimple_call_set_nothrow): New.
533         * gimple.c (gimple_build_call_from_tree): Call it.
534         (gimple_call_flags): Set ECF_NOTHROW from GF_CALL_NOTHROW.
535
536         PR c++/44127
537         * gimplify.c (gimplify_seq_add_stmt): No longer static.
538         * gimple.h: Declare it.
539         * gimple.c (gimple_build_eh_filter): No ops.
540
541 2010-05-14  Jan Hubicka  <jh@suse.cz>
542
543         * ipa.c (enqueue_cgraph_node): Update comment; do not re-enqueue
544         nodes already in queue.
545         (cgraph_remove_unreachable_nodes): Cleanup; fix problem with
546         re-enqueueing node.
547
548 2010-05-14  Jakub Jelinek  <jakub@redhat.com>
549
550         PR debug/44136
551         * cfgexpand.c (expand_debug_expr): If non-memory op0
552         has BLKmode, return NULL.
553
554 2010-05-14  Harsha Jagasia  <harsha.jagasia@amd.com>
555
556         * config.gcc: Add support for --with-cpu option for bdver1.
557         * config/i386/i386.h (TARGET_BDVER1): New macro.
558         (ix86_tune_indices): Change SSE_UNALIGNED_MOVE_OPTIMAL
559         to SSE_UNALIGNED_LOAD_OPTIMAL. Add SSE_UNALIGNED_STORE_OPTIMAL.
560         (ix86_tune_features) :Change SSE_UNALIGNED_MOVE_OPTIMAL
561         to SSE_UNALIGNED_LOAD_OPTIMAL. Add SSE_UNALIGNED_STORE_OPTIMAL.
562         Add SSE_PACKED_SINGLE_INSN_OPTIMAL.
563         (TARGET_CPU_DEFAULT_NAMES): Add bdver1.
564         (processor_type): Add PROCESSOR_BDVER1.
565         * config/i386/i386.md: Add bdver1 as a new cpu attribute to match
566         processor_type in config/i386/i386.h.
567         Add check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit
568         movaps <reg, reg> instead of movapd <reg, reg> when replacing
569         movsd <reg, reg> or movss <reg, reg> for SSE and AVX.
570         Add check for  TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL
571         to emit packed xor instead of packed double/packed integer
572         xor for SSE and AVX when moving a zero value.
573         * config/i386/sse.md: Add check for
574         TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit movaps instead of
575         movapd/movdqa for SSE and AVX.
576         Add check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit packed
577         single logical operations i.e and, or and xor instead of packed double
578         logical operations for SSE and AVX.
579         * config/i386/i386-c.c (ix86_target_macros_internal):
580         Add PROCESSOR_BDVER1.
581         * config/i386/driver-i386.c: Turn on -mtune=native for BDVER1.
582         (has_fma4, has_xop): New.
583         * config/i386/i386.c (bdver1_cost): New variable.
584         (m_BDVER1): New macro.
585         (m_AMD_MULTIPLE): Add m_BDVER1.
586         (x86_tune_use_leave, x86_tune_push_memory, x86_tune_unroll_strlen,
587         x86_tune_deep_branch_prediction, x86_tune_use_sahf, x86_tune_movx,
588         x86_tune_use_simode_fiop, x86_tune_promote_qimode,
589         x86_tune_add_esp_8, x86_tune_tune_sub_esp_4, x86_tune_sub_esp_8,
590         x86_tune_integer_dfmode_moves, x86_tune_partial_reg_dependency,
591         x86_tune_sse_partial_reg_dependency,
592         x86_tune_sse_unaligned_load_optimal,
593         x86_tune_sse_unaligned_store_optimal, x86_tune_sse_typeless_stores,
594         x86_tune_memory_mismatch_stall, x86_tune_use_ffreep,
595         x86_tune_inter_unit_moves, x86_tune_inter_unit_conversions,
596         x86_tune_use_bt, x86_tune_pad_returns, x86_tune_slow_imul_imm32_mem,
597         x86_tune_slow_imul_imm8, x86_tune_fuse_cmp_and_branch):
598         Enable/disable for bdver1.
599         (processor_target_table): Add bdver1_cost.
600         (cpu_names): Add bdver1.
601         (override_options): Set up PROCESSOR_BDVER1 for bdver1 entry in
602          processor_alias_table.
603         (ix86_expand_vector_move_misalign): Change.
604         TARGET_SSE_UNALIGNED_MOVE_OPTIMAL to TARGET_SSE_UNALIGNED_LOAD_OPTIMAL.
605         Check for TARGET_SSE_UNALIGNED_STORE_OPTIMAL.
606         Check for TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit movups instead
607         of movupd/movdqu for SSE and AVX.
608         (ix86_tune_issue_rate): Add PROCESSOR_BDVER1.
609         (ix86_tune_adjust_cost): Add code for bdver1.
610         (standard_sse_constant_opcode): Add check for
611         TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL to emit packed single xor instead
612         of packed double xor for SSE and AVX.
613
614 2010-05-14  Pat Haugen  <pthaugen@us.ibm.com>
615
616         * tree-ssa-loop.prefetch.c (prune_ref_by_group_reuse): Cast abs()
617         result to unsigned.
618
619 2010-05-14  Tristan Gingold  <gingold@adacore.com>
620
621         * toplev.c (default_debug_hooks): Remove this variable.
622         (process_options): Remove assignments to default_debug_hooks.
623
624 2010-05-14  Martin Jambor  <mjambor@suse.cz>
625
626         * langhooks-def.h (LANG_HOOKS_FOLD_OBJ_TYPE_REF): Remove.
627         (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_FOLD_OBJ_TYPE_REF.
628         * langhooks.h (struct lang_hooks_for_decls): Removed field
629         fold_obj_type_ref.
630         * tree.c (free_lang_data): Remove assignment to
631         lang_hooks.fold_obj_type_ref.
632         * tree.def (OBJ_TYPE_REF): Update comment.
633
634 2010-05-14  Richard Guenther  <rguenther@suse.de>
635
636         PR tree-optimization/44124
637         * tree-ssa-sccvn.c (vn_nary_may_trap): Fix invalid memory access.
638
639 2010-05-14  Alan Modra  <amodra@gmail.com>
640
641         PR target/44075
642         * config/rs6000/rs6000.c (struct machine_function): Reorder
643         fields for better packing.  Add lr_save_state.
644         (rs6000_ra_ever_killed): Return lr_save_state if set.
645         (rs6000_emit_eh_reg_restore): Set lr_save_state.
646
647 2010-05-13  Jan Hubicka  <jh@suse.cz>
648
649         * varpool.c (decide_is_variable_needed): Drop code checking
650         TREE_SYMBOL_REFERENCED.
651
652 2010-05-13  Jan Hubicka  <jh@suse.cz>
653
654         * final.c (output_addr_const): Do not call mark_decl_referenced.
655         * cgraphunit.c (process_function_and_variable_attributes): Use
656         mark_needed_node dirrectly.
657         (assemble_thunk): Do not call mark_decl_referenced.
658
659 2010-05-13  Anatoly Sokolov  <aesok@post.ru>
660
661         * targhooks.c (default_mode_dependent_address_p): Cast 'addr' to rtx.
662
663 2010-05-13  Jeff Law  <law@redhat.com>
664
665         * ira-conflicts.c (print_allocno_conflicts): New function broken out
666         from...
667         (print_conflicts): Call print_allocno_conflicts.
668
669 2010-05-13  Jakub Jelinek  <jakub@redhat.com>
670
671         PR debug/44104
672         * dwarf2out.c (modified_type_die): Don't dereference mod_type_die
673         if it is NULL.
674
675 2010-05-13  Kai Tietz  <kai.tietz@onevision.com>
676
677         * config.gcc (i[34567]86-*-mingw* | x86_64-*-mingw*): Choose
678         t-mingw-w64 or t-mingw-w32 for multilib configuration.
679         * config/i386/t-mingw-w32: New.
680         * config/i386/t-mingw-w64 (MULTILIB_OSDIRNAMES): Change lib64 to lib.
681
682 2010-05-13  Martin Jambor  <mjambor@suse.cz>
683
684         * gimple.c (gimple_fold_obj_type_ref): Removed (a replacement moved to
685         gimple-fold.c).
686         * gimple-fold.c (get_base_binfo_for_type): New function.
687         (gimple_get_relevant_ref_binfo): Likewise.
688         (gimple_fold_obj_type_ref_known_binfo): Likewise.
689         (gimple_fold_obj_type_ref): Likewise.
690         (fold_gimple_call): Simplify condition for folding virtual calls
691         and call gimple_fold_obj_type_ref.
692         * gimple.h (gimple_get_relevant_ref_binfo): Declare.
693         (gimple_fold_obj_type_ref_known_binfo): Likewise.
694
695 2010-05-13  Andreas Schwab  <schwab@linux-m68k.org>
696
697         * config/rs6000/rs6000-protos.h
698         (rs6000_mode_dependent_address_ptr): Change argument to const_rtx.
699         * config/rs6000/rs6000.c (rs6000_mode_dependent_address)
700         (rs6000_debug_mode_dependent_address)
701         (rs6000_mode_dependent_address_ptr): Likewise.
702
703 2010-05-13  Jakub Jelinek  <jakub@redhat.com>
704
705         PR debug/43983
706         * var-tracking.c (track_expr_p): Allow tracking of variables optimized
707         by SRA.
708         * Makefile.in (dwarf2out.o): Depend on $(TREE_FLOW_H).
709         * tree-sra.c (create_access_replacement): Call unshare_expr before
710         passing expr to SET_DECL_DEBUG_EXPR, and remove any SSA_NAMEs from it.
711         * dwarf2out.c: Include tree-flow.h.
712         (struct var_loc_node): Rename var_loc_note field to loc, add comment.
713         (size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
714         Handle DW_OP_bit_piece.
715         (decl_piece_bitsize, decl_piece_varloc_ptr, decl_piece_node,
716         construct_piece_list, adjust_piece_list): New functions.
717         (add_var_loc_to_decl): Handle SRA optimized variables.
718         Adjust for var_loc_note to loc field renaming.
719         (dw_loc_list_1): For WANT_ADDRESS == 2 prefer DECL_MODE of decl
720         in VAR_LOCATION note.
721         (new_loc_descr_op_bit_piece): New function.
722         (dw_sra_loc_expr): New function.
723         (dw_loc_list): Use it.  Don't handle the last range after the
724         loop, handle it inside of the loop.  Adjust for var_loc_note
725         to loc field renaming.
726         (add_location_or_const_value_attribute): Only special case
727         single entry loc lists if loc is NOTE_P.  Adjust for
728         var_loc_note to loc field renaming.
729         (dwarf2out_var_location): Don't set newloc->var_loc_note
730         and newloc->next here.
731
732 2010-05-12  Jan Hubicka  <jh@suse.cz>
733
734         * cgraph.c (cgraph_mark_address_taken_node): No longer imply needed
735         flag.
736         * cgraph.h (cgraph_only_called_directly_p,
737         cgraph_can_remove_if_no_direct_calls_p): test address_taken flag.
738         (cgraph_can_remove_if_no_direct_calls_and_refs_p): New function.
739         * cgraphunit.c (cgraph_mark_functions_to_output): Test address_taken.
740         (assemble
741         * ipa.c (cgraph_remove_unreachable_nodes): Use
742         cgraph_can_remove_if_no_direct_calls_and_refs_p; clear address_taken
743         flags.
744         * tree-inline.c (copy_bb): Check address_taken flag.
745         * tree-profile.c (tree_gen_ic_func_profiler): Check address_taken and
746         externally_visible flag.
747
748 2010-05-12  Jason Merrill  <jason@redhat.com>
749
750         PR bootstrap/44048
751         PR target/44099
752         * dbxout.c (dbxout_type): Remove NULLPTR_TYPE handling.
753         * sdbout.c (plain_type_1): Likewise.
754         * dwarf2out.c (is_base_type): Likewise.
755         (gen_type_die_with_usage): Likewise.  Generate
756         DW_TAG_unspecified_type for any LANG_TYPE.
757
758 2010-05-12  Jan Hubicka  <jh@suse.cz>
759
760         * cgraphbuild.c (build_cgraph_edges, rebuild_cgraph_edges): Build
761         indrect edges too.
762         * cgraph.c (cgraph_create_indirect_edge): Take ecf_flags argument.
763         (cgraph_clone_edge): Update.
764         (cgraph_node_remove_callees): Remove indirect calls too.
765         * cgraph.h (cgraph_indirect_call_info): Add ecf_flags.
766         (cgraph_create_indirect_edge): Update prototype.
767         * ipa-reference.c (has_proper_scope_for_analysis): Rename to
768         is_proper_for_analysis.
769         (add_new_function, visited_nodes, function_insertion_hook_holder,
770         get_local_reference_vars_info, mark_address_taken, mark_address,
771         mark_load, mark_store, check_asm_memory_clobber, check_call,
772         scan_stmt_for_static_refs, scan_initializer_for_static_refs): Remove.
773         (ipa_init): Do not initialize visited_nodes;
774         function_insertion_hook_holder.
775         (analyze_variable): Rewrite.
776         (analyze_function): Rewrite.
777         (copy_local_bitmap): Remove.
778         (duplicate_node_dat): Do not duplicate local info.
779         (generate_summary): Simplify to only walk cgraph.
780         (write_node_summary_p, ipa_reference_write_summary,
781         ipa_reference_read_summary): Remove.
782         (propagate): Do not remove function insertion;
783         generate summary.
784         (pass_ipa_reference): NULLify summary handling fields.
785         * lto-cgraph.c (lto_output_edge): Output ecf_flags.
786         (input_edge): Input ecf_flags.
787         * ipa-prop.c (ipa_note_parm_call): Expect edge to be around.
788         (update_indirect_edges_after_inlining): Ignore edges with unknown
789         param.
790
791 2010-05-12  Sriraman Tallam  <tmsriram@google.com>
792
793         * implicit-zee.c: New file.
794         * tree-pass.h (pass_implicit_zee): Declare.
795         * passes.c (init_optimization_passes): Add zee pass.
796         * common.opt (fzee): New flag.
797         * timevar.def (TV_ZEE): Define.
798         * config/i386/i386.c (optimization_options): Turn on ZEE for level 2
799         and beyond.
800         * Makefile.in (implicit-zee.o): Add new build file.
801
802 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
803             Nathan Froyd  <froydnj@codesourcery.com>
804
805         * c-common.c (sync_resolve_params): Remove write-only variable.
806
807 2010-05-12  Anatoly Sokolov  <aesok@post.ru>
808
809         * target.h (struct gcc_target): Add mode_dependent_address_p field.
810         * target-def.h (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
811         (TARGET_INITIALIZER): Use TARGET_MODE_DEPENDENT_ADDRESS_P.
812         * targhooks.c (default_mode_dependent_address_p): New function.
813         * targhooks.h (default_mode_dependent_address_p): Declare function.
814         * doc/tm.texi (TARGET_MODE_DEPENDENT_ADDRESS_P): New.
815         (GO_IF_MODE_DEPENDENT_ADDRESS): Update.
816         * recog.c: (mode_dependent_address_p): Call mode_dependent_address_p
817         target hook. Change return type to bool.
818         * recog.h: (mode_dependent_address_p): Change return type to bool.
819
820 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
821             Nathan Froyd  <froydnj@codesourcery.com>
822
823         * tree-mudflap.c (build_function_type_0, build_function_type_1,
824         build_function_type_2, build_function_type_3): Remove.
825         (mudflap_init): Use build_function_type_list.
826
827 2010-05-12  Kazu Hirata  <kazu@codesourcery.com>
828             Nathan Froyd  <froydnj@codesourcery.com>
829
830         * coverage.c (build_fn_info_value): Call build_constructor instead of
831         build_constructor_from_list.
832         (build_ctr_info_value): Likewise.
833         (build_gcov_info): Likewise.
834
835 2010-05-12  Nathan Froyd  <froydnj@codesourcery.com>
836
837         * tree.c (build_constructor): Compute TREE_CONSTANT for the
838         resultant constructor.
839         (build_constructor_single): Don't set TREE_CONSTANT.
840         (build_constructor_from_list): Don't compute TREE_CONSTANT.
841
842 2010-05-12  Jan Hubicka  <jh@suse.cz>
843
844         * cgraph.h (struct varpool_node): Add aux.
845         * varasm.c (find_decl_and_mark_needed): Force output of varpool nodes.
846         * varpool.c (varpool_remove_node): Do not remove initializer.
847         (varpool_reset_queue): Export.
848         (varpool_finalize_decl): Volatile vars are forced to be output.
849         * lto-symtab.c (lto_varpool_replace_node): Clear out initializer of
850         replaced decl.
851         * ipa.c (enqueue_cgraph_node, enqueue_varpool_node,
852         process_references, varpool_can_remove_if_no_refs): New functions.
853         (cgraph_remove_unreachable_nodes): Handle variables too.
854
855 2010-05-12  H.J. Lu  <hongjiu.lu@intel.com>
856
857         PR target/44088
858         * config/i386/sse.md (*avx_vmmaskcmp<mode>3): New.
859
860 2010-05-12  Jakub Jelinek  <jakub@redhat.com>
861
862         PR middle-end/44085
863         * gimplify.c (enum omp_region_type): Add ORT_UNTIED_TASK,
864         change value of ORT_TASK.
865         (new_omp_context): Handle ORT_UNTIED_TASK like ORT_TASK.
866         (omp_notice_threadprivate_variable): New function.
867         (omp_notice_variable): Call it for threadprivate variables.
868         If enclosing ctx is a task, print enclosing task rather than
869         enclosing parallel.  Handle ORT_UNTIED_TASK like ORT_TASK.
870         (gimplify_omp_task): Pass ORT_UNTIED_TASK instead of ORT_TASK
871         if task has untied clause.
872
873         PR debug/42278
874         * dwarf2out.c (base_type_die): Don't add name attribute here.
875         (modified_type_die): Instead of sizetype use
876         its underlying original type.  If a DW_TAG_base_type doesn't
877         have name added, add __unknown__.
878         (dwarf2out_imported_module_or_decl_1): Don't call base_type_die,
879         always call force_type_die instead.
880
881 2010-05-12  Maxim Kuvyrkov  <maxim@codesourcery.com>
882
883         * targhooks.c (default_stack_protect_guard): Avoid sharing RTL
884         for __stack_chk_guard.
885
886 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
887
888         * c-opts.c (c_common_parse_file): If start_end_main_source_file,
889         don't call start_source_file debug hook here...
890         (finish_options): ... but here, after outputting predefined and
891         command line defines and undefs.
892
893         PR middle-end/44071
894         * cfglayout.c (fixup_reorder_chain): Allow asm goto to have
895         no fallthru edge.
896         * cfgcleanup.c (try_optimize_cfg): When in cfglayout mode
897         optimizing away empty bb with no successors, move over its
898         footer chain to fallthru predecessor.
899         * cfgrtl.c (patch_jump_insn): Update also REG_LABEL_OPERAND.
900         (rtl_split_edge): For asm goto call patch_jump_insn even if
901         splitting fallthru edge.
902
903         PR c++/44059
904         * config/elfos.h (ASM_DECLARE_OBJECT_NAME): Use qnu_unique_object
905         even for DECL_ONE_ONLY DECL_ARTIFICIAL !TREE_READONLY decls.
906         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Likewise.
907         * dwarf2asm.c (dw2_output_indirect_constant_1): Set TREE_READONLY
908         on DW.ref.* decls.
909
910         PR c++/44062
911         * c-parser.c (c_parser_expression): Mark LHS of a comma
912         expression as read if it is a decl, handled component or
913         COMPOUND_EXPR with that on the RHS.
914         * c-typeck.c (c_process_expr_stmt): Mark RHS of COMPOUND_EXPR
915         if it is a decl or handled component.
916
917 2010-05-11  Jan Hubicka  <jh@suse.cz>
918
919         * lto-symtab.c (lto_symtab_free): New function.
920         * lto-streamer.h (lto_symtab_free): Declare.
921
922 2010-05-11  Jan Hubicka  <jh@suse.cz>
923
924         * lto-cgraph.c (reachable_from_other_partition_p): Export; do not assume
925         that if function is needed it is reachable.
926         (lto_output_node): See if it the function is reachable or referenced.
927         (output_cgraph): Update call of lto_output_node.
928         * lto-streamer.h (reachable_from_other_partition_p): Declare.
929
930 2010-05-11  Jan Hubicka  <jh@suse.cz>
931
932         * crtstuff.c (__JCR_LIST__, __DTOR_END__, __JCR_END__, __FRAME_END__):
933         Mark as used.
934
935 2010-05-11  Jan Hubicka  <jh@suse.cz>
936
937         PR tree-optimize/44063
938         * ipa-inline.c (cgraph_edge_badness): Move always inlines to top of
939         queue.
940         (cgraph_decide_inlining_of_small_function): Skip check when disrgarding
941         limits.
942         (estimate_function_body_sizes): Compute sizes even when disregarding.
943
944 2010-05-11  Kai Tietz  <kai.tietz@onevision.com>
945
946         * collect2.c (maybe_lto_object_file): Add x64-coff magic and check.
947
948 2010-05-11  Jan Hubicka  <jh@suse.cz>
949
950         * lto-cgraph.c (output_cgraph): Remove loop adding all varpool nodes
951         into every boundary.
952
953 2010-05-11  Jan Hubicka  <jh@suse.cz>
954
955         * matrix-reorg.c (matrix_reorg): Rebuild edges.
956
957 2010-05-11  Jan Hubicka  <jh@suse.cz>
958
959         * lto-streamer.c (lto_streamer_cache_add_to_node_array,
960         lto_streamer_cache_delete): Put nodes into heap.
961         * lto-streamer.h (struct lto_streamer_cache_d): Nodes vector is in
962         heap.
963
964 2010-05-11  Jan Hubicka  <jh@suse.cz>
965
966         * cgraphbuild.c (cgraph_rebuild_references): New.
967         * cgraph.c (cgraph_mark_reachable_node): Accept references to optimized
968         out extern inlines.
969         * cgraph.h (cgraph_rebuild_references): Declare.
970         * tree-inline.c (tree_function_versioning): Use it.
971         * ipa-struct-reorg.c (do_reorg_for_func): Likewise.
972
973 2010-05-11  Jan Hubicka  <jh@suse.cz>
974
975         * cgraph.c: Include ipa-utils.h
976         (cgraph_create_virtual_clone): Update references.
977         * Makefile.in (cgraph.o): Add dependency at ipa-utils.h
978
979 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
980
981         * tree-ssa-loop-prefetch.c (prune_ref_by_group_reuse): Reset
982         prefetch_before to PREFETCH_ALL if to accesses "meet" beyond
983         cache size.
984
985 2010-05-11  Christian Borntraeger  <borntraeger@de.ibm.com>
986
987         * tree-ssa-loop-prefetch.c: Add debug for dropped prefetches.
988
989 2010-05-11  Jakub Jelinek  <jakub@redhat.com>
990
991         * gcc.c (execute): For -### don't quote arguments that
992         contain just alphanumerics and _/-. characters.
993         * doc/invoke.texi: Document that change for -###.
994
995         PR debug/44023
996         * df-problems.c (struct dead_debug): Add to_rescan field.
997         (dead_debug_init): Clear to_rescan field.
998         (dead_debug_finish): Rescan all debug insns in to_rescan
999         bitmap and free the bitmap.
1000         (dead_debug_insert_before): Instead of rescanning debug insns
1001         immediately queue their rescanning until dead_debug_finish.
1002         (df_note_bb_compute): After dead_debug_add do continue instead
1003         of break.
1004
1005 2010-05-10  Jakub Jelinek  <jakub@redhat.com>
1006
1007         PR debug/44028
1008         * haifa-sched.c (schedule_insn): When clearing INSN_VAR_LOCATION_LOC,
1009         clear also INSN_REG_USE_LIST.
1010
1011 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1012
1013         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Undef.
1014
1015 2010-05-10  Jan Hubicka  <jh@suse.cz>
1016
1017         * lto-stramer-out.c (produce_asm_for_decls): Correct accidentally
1018         commited change.
1019
1020 2010-05-10  Jan Hubicka  <jh@suse.cz>
1021
1022         * passes.c (ipa_write_summaries_1, ipa_write_optimization_summaries):
1023         Allocate encoders.
1024         * lto-section-out.c (lto_new_out_decl_state): Do not allocate it here.
1025         * lto-streamer.c (lto_streamer_cache_insert_1): Use alloc pool.
1026         (lto_streamer_cache_create): Init alloc pool.
1027         (lto_streamer_cache_delete): Free alloc pool.
1028         * lto-streamer.h: Include alloc pool.
1029         (lto_streamer_cache_d): Use alloc pool.
1030         * lto-stramer-out.c (produce_asm_for_decls): Delete fn_out_states.
1031
1032 2010-05-10  Jan Hubicka  <jh@suse.cz>
1033
1034         * Makefile.in (cgraphbuild.o): Add dependency on except.h.
1035         * cgraphbuild.c: Include except.h
1036         (record_type_list, record_eh_tables): New function.
1037         (build_cgraph_edges, rebuild_cgraph_edges): Use it.
1038
1039 2010-05-10  Jan Hubicka  <jh@suse.cz>
1040
1041         * crtstuff.c (force_to_data, __do_global_dtors_aux_fini_array_entry,
1042         __frame_dummy_init_array_entry, force_to_data): Attribute as used
1043         rather than unused.
1044
1045 2010-05-10  Michael Matz  <matz@suse.de>
1046
1047         * tree-ssa-reassoc.c (undistribute_ops_list): Use create_tmp_reg.
1048         (can_reassociate_p): Use FLOAT_TYPE_P.
1049         * tree-vectorizer.h (vect_is_simple_reduction): Rename to ...
1050         (vect_force_simple_reduction): ... this.
1051         * tree-parloops.c (gather_scalar_reductions): Use
1052         vect_force_simple_reduction.
1053         * tree-vect-loop.c (vect_is_simple_reduction_1): Rename from
1054         vect_is_simple_reduction, add modify argument, if true rewrite
1055         "a-b" into "a+(-b)".
1056         (vect_is_simple_reduction, vect_force_simple_reduction): New
1057         functions.
1058         (vect_analyze_scalar_cycles_1): Use vect_force_simple_reduction.
1059
1060 2010-05-10  H.J. Lu  <hongjiu.lu@intel.com>
1061             Vladimir Makarov  <vmakarov@redhat.com>
1062
1063         PR rtl-optimization/44012
1064         * ira-build.c (remove_unnecessary_allocnos): Nullify
1065         regno_allocno_map of the removed allocno.
1066
1067 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1068
1069         * configure.ac (gcc_cv_ld_eh_gc_sections): Redirect objdump errors
1070         to /dev/null.
1071         * configure: Regenerate.
1072
1073 2010-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1074
1075         * config/sol2.c (solaris_assemble_visibility): Declare decl, vis
1076         unused.
1077         Define visibility_types, name, type inside HAVE_GAS_HIDDEN.
1078         * configure.ac (gcc_cv_ld_hidden): Explain stages of visibility
1079         support in Sun ld.
1080         * configure: Regenerate.
1081
1082 2010-05-10  Richard Guenther  <rguenther@suse.de>
1083
1084         * lto-symtab.c (lto_symtab_entry_marked_p): Make entry
1085         marked if the entry identifier is marked.
1086
1087 2010-05-10  Richard Guenther  <rguenther@suse.de>
1088
1089         * c-common.c (struct c_common_attributes): Add fnspec attribute.
1090         (handle_fnspec_attribute): New function.
1091         * gimple.h (gimple_call_return_flags): Declare.
1092         (gimple_call_arg_flags): Likewise.
1093         * gimple.c (gimple_call_arg_flags): New function.
1094         (gimple_call_return_flags): Likewise.
1095         * tree.h (EAF_DIRECT, EAF_NOCLOBBER, EAF_NOESCAPE, EAF_UNUSED):
1096         New argument flags.
1097         (ERF_RETURN_ARG_MASK, ERF_RETURNS_ARG, ERF_NOALIAS): New function
1098         return value flags.
1099         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Skip unused args.
1100         * tree-ssa-structalias.c (make_constraint_from_heapvar): Split
1101         main work to ...
1102         (make_heapvar_for): ... this new function.
1103         (handle_rhs_call): Handle fnspec attribute argument specifiers.
1104         (handle_lhs_call): Likewise.
1105         (find_func_aliases): Adjust.
1106
1107 2010-05-10  Richard Guenther  <rguenther@suse.de>
1108
1109         PR tree-optimization/44050
1110         * tree-inline.c (tree_function_versioning): Clone the ipa-pta flag.
1111
1112 2010-05-10  Wei Guozhi  <carrot@google.com>
1113
1114         PR target/42879
1115         * config/arm/thumb2.md (thumb2_tlobits_cbranch): New insn pattern.
1116
1117 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
1118
1119         PR c/10676
1120         * c-typeck.c (lookup_field): Take a type directly.  Update
1121         recursive calls.
1122         (build_component_ref): Update call to lookup_field.
1123         (set_init_label): Use lookup_field to find initialized field.
1124         Handle returned list of fields like a sequence of designators.
1125
1126 2010-05-09  Richard Guenther  <rguenther@suse.de>
1127
1128         PR middle-end/44024
1129         * fold-const.c (tree_single_nonzero_warnv_p): Properly
1130         handle &FUNCTION_DECL.
1131
1132 2010-05-09  Joseph Myers  <joseph@codesourcery.com>
1133
1134         PR c/4784
1135         * c-decl.c (detect_field_duplicates_hash): New.  Handle anonymous
1136         structures and unions recursively.
1137         (detect_field_duplicates): Move duplicate detection with a hash to
1138         detect_field_duplicates_hash.  Always use a hash if anonymous
1139         structures or unions are present.
1140         * doc/extend.texi (Unnamed Fields): Document that duplicate fields
1141         give errors.
1142
1143 2010-05-09  H.J. Lu  <hongjiu.lu@intel.com>
1144
1145         PR target/44046
1146         * config/i386/driver-i386.c (host_detect_local_cpu): Properly
1147         detect Atom, Core 2 and Core i7.
1148
1149 2010-05-09  Richard Guenther  <rguenther@suse.de>
1150
1151         * gcc.c (store_arg): Handle temporary file deletion for
1152         joined arguments.
1153
1154 2010-05-09  Richard Guenther  <rguenther@suse.de>
1155
1156         PR middle-end/44043
1157         * ipa-inline.c (estimate_function_body_sizes): Return after
1158         disregarding inline limits.
1159
1160 2010-05-09  Richard Guenther  <rguenther@suse.de>
1161
1162         * gcc.c (store_arg): Revert last change.
1163
1164 2010-05-08  Sandra Loosemore  <sandra@codesourcery.com>
1165
1166         PR middle-end/28685
1167         * tree-ssa-reassoc.c (eliminate_redundant_comparison): New function.
1168         (optimize_ops_list): Call it.
1169
1170 2010-05-08  Richard Guenther  <rguenther@suse.de>
1171
1172         PR tree-optimization/44030
1173         * tree-ssa-pre.c (eliminate): Copy NECESSARY flag.  Set
1174         NECESSARY flag if we propagate from a inserted expression.
1175
1176 2010-05-08  Eric Botcazou  <ebotcazou@adacore.com>
1177
1178         * gimple.c (gimple_types_compatible_p) <ARRAY_TYPE>: Treat bounds of
1179         domain types as equal if they are both PLACEHOLDER_EXPRs.
1180
1181 2010-05-08  Richard Guenther  <rguenther@suse.de>
1182
1183         * lto-wrapper.c (run_gcc): Remove linker output from
1184         command line for LTRANS invocation.
1185
1186 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
1187
1188         * config.gcc (i[34567]86-*-darwin*, x86_64-*-darwin*): Add
1189         lto-macho as lto_binary_reader.
1190         * target.h (struct gcc_target): New hooks lto_start and lto_end.
1191         * target-def.h (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Define.
1192         * cgraphunit.c (ipa_passes): Wrap LTO assembler output generation
1193         in lto_start and lto_end calls.
1194         (is_elf_or_coff): Rename to maybe_lto_object_file.  Add Mach-O
1195         magic numbers.
1196         (scan_prog_file): Update is_elf_or_coff call.
1197         * doc/tm.text (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Document.
1198
1199         * collect2.c (main): Fix enum comparison.
1200
1201         * config/darwin-protos.h (darwin_asm_lto_start, darwin_asm_lto_end):
1202         Add prototypes.
1203         * darwin9.h (LINK_COMMAND_SPEC): Pass -flto and -fwhopr to the linker.
1204         * darwin.h (LINK_COMMAND_SPEC): Likewise.  Define TARGET_ASM_LTO_START
1205         and TARGET_ASM_LTO_END.
1206         * darwin.c: Include obstack.h and lto-streamer.h.
1207         (lto_section_names_offset, lto_section_names_obstack,
1208         lto_asm_out_file, lto_asm_out_name, saved_asm_out_file): New static
1209         global variables.
1210         (LTO_SEGMENT_NAME, LTO_NAMES_SECTION): New defines.
1211         (darwin_asm_lto_start): New function.  Redirect output to asm_out_file
1212         to a temporary file.
1213         (darwin_asm_lto_end): New function.  Restore asm_out_file.
1214         (darwin_asm_named_section): For LTO sections, replace the name with
1215         the offset of the section name in a string table, and build this
1216         table.
1217         (darwin_file_start): Initialize global vars for LTO support.
1218         (darwin_file_end): If output to asm_out_file was redirected, append it
1219         to the proper asm_out_file here.  Add the section names section.
1220
1221 2010-05-07  Steven Bosscher  <steven@gcc.gnu.org>
1222
1223         * c-pragma.c (pending_weak_d, pending_weak): New.
1224         (pending_weaks): Change the type to VEC((pending_weak,gc) *.
1225         (maybe_apply_pragma_weak, maybe_apply_pending_pragma_weaks,
1226         handle_pragma_weak): Update the uses of pending_weaks.
1227
1228 2010-05-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
1229
1230         PR documentation/44016
1231         * doc/standards.texi (Standards): Link to unversioned
1232         cxx0x_status.html page.
1233
1234 2010-05-07  Iain Sandoe <iains@gcc.gnu.org>
1235
1236         PR target/43708
1237         * config/darwin-c.c (darwin_pragma_unused): Set DECL_READ_P
1238         in addition to TREE_USED, to avoid "set but unused" warnings.
1239
1240 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
1241
1242         * tree-ssa-loop-prefetch.c (TRIP_COUNT_TO_AHEAD_RATIO): New.
1243         (is_loop_prefetching_profitable): Do not insert prefetches
1244         when the trip count is not at least TRIP_COUNT_TO_AHEAD_RATIO
1245         times the prefetch ahead distance.
1246
1247 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
1248
1249         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable):
1250         Account for loop unrolling in the insn-to-prefetch ratio heuristic.
1251         (loop_prefetch_arrays): Pass to is_loop_prefetching_profitable
1252         the unroll_factor.
1253
1254 2010-05-07  Changpeng Fang  <changpeng.fang@amd.com>
1255
1256         * tree-ssa-loop-prefetch.c (is_loop_prefetching_profitable): Dump
1257         a diagnostic info when the insn-to-mem ratio is too small.
1258
1259 2010-05-07  Richard Guenther <rguenther@suse.de>
1260
1261         * gcc.c (LINK_COMMAND_SPEC): Provide a resolution file to
1262         the linker plugin.
1263         (store_arg): Queue temp_filename for deletion instead of
1264         the whole argument.
1265
1266 2010-05-07  Richard Guenther  <rguenther@suse.de>
1267
1268         * lto-wrapper.c (DUMPBASE_SUFFIX): Define.
1269         (run_gcc): Handle LTRANS phase invocation.
1270         * collect2.c (maybe_run_lto_and_relink): Do not set WPA_SAVE_LTRANS.
1271
1272 2010-05-07  Jakub Jelinek  <jakub@redhat.com>
1273
1274         * tree.h (TREE_ADDRESSABLE): Adjust comment to say that
1275         this is also meaningful on PARM_DECLs and RESULT_DECLs.
1276
1277 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1278
1279         * config/mips/iris6.h (LINK_SPEC): Don't pass -init, -fini with -r.
1280
1281 2010-05-07  Richard Guenther  <rguenther@suse.de>
1282
1283         PR tree-optimization/44020
1284         * tree-ssa-pre.c (execute_pre): Do not remove dead inserted
1285         code when PRE is not yet initialized.
1286
1287 2010-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1288
1289         * config/mips/dbxmdebug.h: Remove.
1290         * config.gcc (mips-sgi-irix6.5*): Remove mips/dbxmdebug.h.
1291
1292 2010-05-07  Shujing Zhao  <pearly.zhao@oracle.com>
1293
1294         * c-typeck.c (build_binary_op): Warn ordered comparison of pointer
1295         with null pointer and also warn about ordered comparison of zero with
1296         pointer if -Wextra.
1297
1298 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
1299
1300         * graphite-blocking.c
1301         (pbb_strip_mine_profitable_p): Replace Value with mpz_t.
1302         * graphite-clast-to-gimple.c
1303         (clast_to_gcc_expression): Same.
1304         (precision_for_value): Same.
1305         (precision_for_interval): Same.
1306         (gcc_type_for_interval): Same.
1307         (graphite_create_new_guard): Same.
1308         (compute_bounds_for_level): Same.
1309         (graphite_create_new_loop_guard): Same.
1310         * graphite-interchange.c
1311         (build_linearized_memory_access): Same.
1312         (pdr_stride_in_loop): Same.
1313         (memory_strides_in_loop_1): Same.
1314         (memory_strides_in_loop): Same.
1315         (extend_scattering): Same.
1316         (psct_scattering_dim_for_loop_depth): Same.
1317         (pbb_number_of_iterations): Same.
1318         * graphite-poly.h
1319         (debug_iteration_domains): Same.
1320         * graphite-ppl.c
1321         (new_Cloog_Domain_from_ppl_Pointset_Powerset): Same.
1322         (ppl_set_inhomogeneous_gmp): Same.
1323         (ppl_strip_loop): Same.
1324         (ppl_lexico_compare_linear_expressions): Same.
1325         (ppl_read_polyhedron_matrix): Same.
1326         (ppl_max_for_le_pointset): Same.
1327         * graphite-ppl.h
1328         (ppl_read_polyhedron_matrix): Same.
1329         (tree_int_to_gmp): Same.
1330         (gmp_cst_to_tree): Same.
1331         (ppl_set_inhomogeneous): Same.
1332         (ppl_set_inhomogeneous_tree): Same.
1333         (ppl_set_coef): Same.
1334         (ppl_set_coef_tree): Same.
1335         * graphite-sese-to-poly.c
1336         (build_pbb_scattering_polyhedrons): Same.
1337         (build_scop_scattering): Same.
1338         (scan_tree_for_params_right_scev): Same.
1339         (scan_tree_for_params): Same.
1340         (find_params_in_bb): Same.
1341         (find_scop_parameters): Same.
1342         (add_upper_bounds_from_estimated_nit): Same.
1343         (build_loop_iteration_domains): Same.
1344         (add_condition_to_domain): Same.
1345         (pdr_add_memory_accesses): Same.
1346
1347 2010-05-05  Andreas Simbuerger  <simbuerg@fim.uni-passau.de>
1348
1349         * graphite-blocking.c (pbb_strip_mine_profitable_p): Resolve
1350         CLooG's value_* macros to their respective mpz_* counterparts.
1351         * graphite-clast-to-gimple.c (clast_to_gcc_expression): Same.
1352         (graphite_create_new_loop_guard): Same.
1353         * graphite-interchange.c (build_linearized_memory_access): Same.
1354         (pdr_stride_in_loop): Same.
1355         (memory_strides_in_loop_1): Same.
1356         (1st_interchange_profitable_p): Same.
1357         * graphite-poly.c (extend_scattering): Same.
1358         (psct_scattering_dim_for_loop_depth): Same.
1359         (pbb_number_of_iterations): Same.
1360         (pbb_number_of_iterations_at_time): Same.
1361         * graphite-poly.h (new_1st_loop): Same.
1362         * graphite-ppl.c (cloog_matrix_to_ppl_constraint): Same.
1363         (oppose_constraint): Same.
1364         (insert_constraint_into_matrix): Same.
1365         (ppl_set_inhomogeneous_gmp): Same.
1366         (ppl_set_coef_gmp): Same.
1367         (ppl_strip_loop): Same.
1368         (ppl_lexico_compare_linear_expressions): Same.
1369         (ppl_max_for_le_pointset): Same.
1370         (ppl_min_for_le_pointset): Same.
1371         (ppl_build_realtion): Same.
1372         * graphite-ppl.h (gmp_cst_to_tree): Same.
1373         (ppl_set_inhomogeneous): Same.
1374         (ppl_set_inhomogeneous_tree): Same.
1375         (ppl_set_coef): Same.
1376         (ppl_set_coef_tree): Same.
1377         * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Same.
1378         (build_scop_scattering): Same.
1379         (add_value_to_dim): Same.
1380         (scan_tree_for_params_right_scev): Same.
1381         (scan_tree_for_params_int): Same.
1382         (scan_tree_for_params): Same.
1383         (find_params_in_bb): Same.
1384         (find_scop_parameters): Same.
1385         (add_upper_bounds_from_estimated_nit): Same.
1386         (build_loop_iteration_domains): Same.
1387         (create_linear_expr_from_tree): Same.
1388         (add_condition_to_domain): Same.
1389         (pdr_add_memory_accesses): Same.
1390
1391 2010-05-06  Magnus Fromreide  <magfr@lysator.liu.se>
1392             Jason Merrill  <jason@redhat.com>
1393
1394         * c-common.c (c_common_reswords): Add nullptr.
1395         * c-common.h: Add RID_NULLPTR.  Reorganize C++0x rids.
1396         * dwarf2out.c (is_base_type): Handle NULLPTR_TYPE.
1397         (gen_type_die_with_usage): Likewise.
1398         * dbxout.c (dbxout_type): Likewise.
1399         * sdbout.c (plain_type_1): Likewise.
1400
1401 2010-05-06  Jason Merrill  <jason@redhat.com>
1402
1403         * gimplify.c (gimplify_expr): Set GS_ALL_DONE when appropriate.
1404         Don't change GS_OK to GS_ALL_DONE.  Make sure that all cases set
1405         ret appropriately.
1406         (gimplify_compound_lval): Return GS_ALL_DONE as appropriate.
1407
1408         * gimplify.c (gimplify_modify_expr_rhs): Don't return GS_OK for
1409         stripping WITH_SIZE_EXPR.
1410         (gimplify_expr) [MODIFY_EXPR]: Trust GS_OK even if the rhs didn't
1411         change.
1412
1413 2010-05-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1414
1415         * config.gcc: Removed mips-sgi-irix5*, mips-sgi-irix6.[0-4]* from
1416         list of obsolete configurations.
1417         Disabled check for obsolete configurations.
1418         (mips-sgi-irix[56]*): Restrict to mips-sgi-irix6.5*.
1419         Removed support for previous versions.
1420         * config/mips/iris.h: Removed.
1421         * config/mips/iris5.h: Removed.
1422         * config/mips/iris6.h: Merged old iris.h contents.
1423         (TARGET_IRIX): Removed.
1424         (DRIVER_SELF_SPECS): Removed mabi=32.
1425         (IDENT_ASM_OP): Removed undef.
1426         (STARTFILE_SPEC): Removed mabi=32.
1427         (ENDFILE_SPEC): Likewise.
1428         (IRIX_SUBTARGET_LINK_SPEC): Likewise.
1429         (MACHINE_TYPE): Update for IRIX 6.5.
1430         * config/mips/mips.c (mips_build_builtin_va_list): Replaced
1431         TARGET_IRIX by TARGET_IRIX6.
1432         (mips_file_start): Likewise.
1433         (mips_output_external): Remove IRIX 5/6 O32 support.
1434         (mips_output_function_prologue): Likewise.
1435         * config/mips/mips.h (TARGET_GPWORD): Replaced TARGET_IRIX by
1436         TARGET_IRIX6.
1437         (TARGET_CPU_CPP_BUILTINS): Likewise.
1438         (TARGET_IRIX): Removed.
1439         * config/mips/t-iris6 (MULTILIB_OPTIONS): Removed mabi=32.
1440         (MULTILIB_DIRNAMES): Removed 32.
1441         (MULTILIB_OSDIRNAMES): Removed ../lib.
1442         * doc/install.texi (Prerequisites): Don't reference IRIX before 6.5.
1443         (Specific, mips-sgi-irix5): Document removal.
1444         (Specific, mips-sgi-irix6): Document IRIX 6.[0-4] and O32 ABI removal.
1445         Remove references to older IRIX 6 releases and the O32 ABI.
1446
1447 2010-05-06  Jakub Jelinek  <jakub@redhat.com>
1448
1449         PR bootstrap/43994
1450         * df-problems.c (dead_debug_insert_before): Use *DF_REF_REAL_LOC
1451         instead of DF_REF_REAL_REG.
1452
1453 2010-05-06  Dave Korn  <dave.korn.cygwin@gmail.com>
1454
1455         PR target/43888
1456         * config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
1457         handling to still return true for x64 targets.
1458
1459 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
1460
1461         * config/m68k/uclinux.h (LIB_SPEC): Bring in sync with config/linux.h.
1462
1463 2010-05-06  Jan Hubicka  <jh@suse.cz>
1464
1465         PR tree-optimization/43791
1466         * ipa-inline.c (update_caller_keys): Remove bogus
1467         disregard_inline_limits check.
1468
1469 2010-05-06  Michael Matz  <matz@suse.de>
1470
1471         PR tree-optimization/43984
1472         * tree-ssa-pre.c (inserted_phi_names): Remove.
1473         (inserted_exprs): Change to bitmap.
1474         (create_expression_by_pieces): Set bits, don't append to vector.
1475         (insert_into_preds_of_block): Don't handle inserted_phi_names.
1476         (eliminate): Don't look at inserted_phi_names, remove deleted
1477         insns from inserted_exprs.
1478         (remove_dead_inserted_code): Adjust to use bitmaps instead of vectors.
1479         (init_pre, fini_pre): Allocate and free bitmaps.
1480         (execute_pre): Insert insns on edges before elimination.
1481
1482 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
1483
1484         * tree.c (initializer_zerop): Handle STRING_CST.
1485
1486 2010-05-06  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1487
1488         PR 40989
1489         * doc/invoke.texi (Wimplicit): Document as C only.
1490         * opts.c (common_handle_option): Add argument kind.
1491         (handle_option): Rename as read_cmdline_option. Factor out code to...
1492         (handle_option): ... here. New.
1493         (handle_options): Rename as read_cmdline_options.
1494         (decode_options): Update call.
1495         (set_option): Use option index instead of option pointer. Classify
1496         diagnostics correctly.
1497         (enable_warning_as_error): Call handle_option.
1498         * opts.h (set_option): Update declaration.
1499         (handle_option): Declare.
1500         * langhooks.h (struct lang_hooks): Add argument kind to handle_option.
1501         * c.opt (Wimplicit,Wimplicit-int): Initialize to -1.
1502         * c-opts.c (set_Wimplicit): Delete.
1503         (c_family_lang_mask): New static constant.
1504         (c_common_handle_option): Add argument kind. Use handle_option
1505         instead of set_Wimplicit.
1506         (c_common_post_options): warn_implicit and warn_implicit_int
1507         are disabled by default.
1508         * c-common.c (warn_implicit): Do not define here.
1509         * c-common.h (warn_implicit): Do not declare here.
1510         (c_common_handle_option): Update declaration.
1511         * lto-opts.c (lto_reissue_options): Update call to set_option.
1512
1513 2010-05-06  Richard Guenther  <rguenther@suse.de>
1514
1515         PR tree-optimization/43571
1516         * domwalk.c (walk_dominator_tree): Walk the dominator
1517         sons in more optimal order.
1518
1519 2010-05-06  Richard Guenther  <rguenther@suse.de>
1520
1521         PR tree-optimization/43934
1522         * tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
1523         (stmt_cost): Likewise.
1524         (extract_true_false_args_from_phi): New helper.
1525         (determine_max_movement): For PHI nodes verify we can hoist them
1526         and compute their cost.
1527         (determine_invariantness_stmt): Handle PHI nodes.
1528         (move_computations_stmt): Likewise.  Hoist PHI nodes in
1529         if-converted form using COND_EXPRs.
1530         (move_computations): Return TODO_cleanup_cfg if we hoisted PHI nodes.
1531         (tree_ssa_lim): Likewise.
1532         * tree-flow.h (tree_ssa_lim): Adjust prototype.
1533         * tree-ssa-loop.c (tree_ssa_loop_im): Return todo.
1534
1535 2010-05-06  Richard Guenther  <rguenther@suse.de>
1536
1537         PR tree-optimization/43987
1538         * tree-ssa-structalias.c (could_have_pointers): For possibly
1539         address-taken variables force pointers to be recorded.
1540         (create_variable_info_for_1): Likewise.
1541         (push_fields_onto_fieldstack): Pass in wheter all fields
1542         must have pointers.
1543         (find_func_aliases): Query types instead of vars whether
1544         they contain pointers where appropriate.
1545
1546 2010-05-06  Jan Hubicka  <jh@suse.cz>
1547
1548         * cgraphbuild.c (record_reference_ctx): Add varpool_node.
1549         (record_reference, mark_address, mark_load, mark_store): Record
1550         references.
1551         (record_references_in_initializer): Update call of record_references.
1552         (rebuild_cgraph_edges): Remove all references before rebuiding.
1553         * cgraph.c (cgraph_create_node): Clear ref list.
1554         (cgraph_remove_node): Remove references.
1555         (dump_cgraph_node): Dump references.
1556         (cgraph_clone_node): Clone references.
1557         * cgraph.h: Include ipa-ref.h and ipa-ref-inline.h
1558         (struct cgraph_node, varpool_node): Add ref_lst.
1559         * ipa-ref.c: New file.
1560         * ipa-ref.h: New file.
1561         * ipa-ref-inline.h: New file.
1562         * lto-cgraph.c (output_varpool): Take cgrag node set argument.
1563         (referenced_from_other_partition_p): New function.
1564         (lto_output_varpool_node): Take set arugment; call
1565         referenced_from_other_partition.
1566         (lto_output_ref): New.
1567         (add_references): New.
1568         (output_refs): New.
1569         (output_cgraph): Compute boundary based on references; output refs.
1570         (output_varpool): Accept cgraph_node_set argument.
1571         (input_ref): New.
1572         (input_refs): New.
1573         (input_cgraph): Call input_refs.
1574         * lto-section-in.c (lto_section_name): Add refs.
1575         * Makefile.in: (cgraph.h): Include ipa-ref.h and ipa-ref-inline.h
1576         (ipa-ref.o): New file.
1577         * varpool.c (varpool_node): Clear ipa ref list.
1578         (varpool_remove_node): Remove references.
1579         (dump_varpool_node): Dump references.
1580         (varpool_assemble_decl): Only compile finalized ones.
1581         (varpool_extra_name_alias): Initialize ref list.
1582         * lto-streamer.c (lto-get_section_name): Add .refs section.
1583         * lto-streamer.h (lto_section_type): Add LTO_section_refs.
1584         (referenced_from_other_partition_p): Declared.
1585
1586 2010-05-06  Ira Rosen  <irar@il.ibm.com>
1587
1588         PR tree-optimization/43901
1589         * tree-vect-stmts.c (vectorizable_call): Assert that vector
1590         type is not NULL if it's transformation phase, and return
1591         FALSE if it's analysis.
1592         (vectorizable_conversion, vectorizable_operation,
1593         vectorizable_type_demotion, vectorizable_type_promotion): Likewise.
1594
1595 2010-05-05  Andrew Pinski  <andrew.pinski@caviumnetworks.com>
1596
1597         * config/mips/mips.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
1598         Delete.
1599         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
1600         New define.
1601         * config/mips/mips-protos.h
1602         (mips_small_register_classes_for_mode_p): Delete prototype.
1603
1604 2010-05-06  Bernd Schmidt  <bernds@codesourcery.com>
1605
1606         * config/arm/arm.h (MAX_LDM_STM_OPS): New macro.
1607         * config/arm/arm.c (multiple_operation_profitable_p,
1608         compute_offset_order): New static functions.
1609         (load_multiple_sequence, store_multiple_sequence): Use them.
1610         Replace constant 4 with MAX_LDM_STM_OPS.  Compute order[0] from
1611         memory offsets, not register numbers.
1612         (emit_ldm_seq, emit_stm_seq): Replace constant 4 with MAX_LDM_STM_OPS.
1613
1614 2010-05-05  Steven Bosscher  <steven@gcc.gnu.org>
1615
1616         * stor-layout.c (pending_sizes): Change the type to VEC(tree,gc) *.
1617         (get_pending_sizes, put_pending_size, put_pending_sizes):
1618         Update the uses of pending_sizes.
1619         * c-decl.c (store_parm_decls): Likewise.
1620         * c-tree.h (struct c_arg_info): Likewise.
1621         * tree.h: Update the prototype for get_pending_sizes and
1622         put_pending_sizes.
1623
1624 2010-05-05  Jason Merrill  <jason@redhat.com>
1625
1626         PR debug/43370
1627         * c-common.c (handle_aligned_attribute): Respect
1628         ATTR_FLAG_TYPE_IN_PLACE.
1629
1630         PR testsuite/43758
1631         * target.h (struct gcc_target): Add attribute_takes_identifier_p.
1632         * target_def.h (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
1633         (TARGET_INITIALIZER): Use it.
1634         * c-common.c (attribute_takes_identifier_p): Call it.
1635         * c-common.h: Update prototype.
1636         * config/rs6000/rs6000.c (rs6000_attribute_takes_identifier_p): New.
1637         (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
1638
1639 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
1640
1641         PR debug/43950
1642         * dwarf2out.c (gen_compile_unit_die): Add DW_AT_identifier_case
1643         DW_ID_down_case for Fortran compilation units.
1644
1645 2010-05-05  Jan Hubicka  <jh@suse.cz>
1646
1647         * lto-cgraph.c (lto_output_varpool_node, input_varpool_node): Correctly
1648         handle aliases.
1649
1650 2010-05-05  Eric Botcazou  <ebotcazou@adacore.com>
1651
1652         * gimplify.c (gimplify_return_expr): Gimplify the size expressions of
1653         a variable-sized RESULT_DECL.
1654
1655 2010-05-05  Maxim Kuvyrkov  <maxim@codesourcery.com>
1656
1657         * doc/invoke.texi (-mfix-cortex-m3-ldrd): Move from ARC section to ARM.
1658
1659 2010-05-05  Jason Merrill  <jason@redhat.com>
1660
1661         PR c++/43787
1662         * gimplify.c (gimplify_expr): Keep working if gimplify_modify_expr
1663         returns GS_OK.
1664         (gimplify_modify_expr_rhs): Return GS_OK if anything changed.
1665
1666 2010-05-05  Alexandre Oliva  <aoliva@redhat.com>
1667             Jakub Jelinek  <jakub@redhat.com>
1668
1669         PR debug/43478
1670         * df-problems.c (struct dead_debug_use, struct dead_debug): New.
1671         (dead_debug_init, dead_debug_finish): New functions.
1672         (dead_debug_add, dead_debug_insert_before): Likewise.
1673         (df_note_bb_compute): Initialize a dead_debug object, add dead
1674         debug uses to it, insert debug bind insns before death insns,
1675         reset debug insns that refer to pending uses at the end.
1676         * rtl.h (make_debug_expr_from_rtl): New prototype.
1677         * varasm.c (make_debug_expr_from_rtl): New function.
1678
1679 2010-05-05  Jan Hubicka  <jh@suse.cz>
1680
1681         * lto-cgraph.c (output_varpool): Forward declare; work on encoder.
1682         (lto_varpool_encoder_new, lto_varpool_encoder_delete,
1683         lto_varpool_encoder_encode, lto_varpool_encoder_lookup,
1684         lto_varpool_encoder_deref, lto_varpool_encoder_size,
1685         lto_varpool_encoder_encode_initializer_p,
1686         lto_set_varpool_encoder_encode_initializer): New functions.
1687         (lto_output_cgraph): Take vset parameter too; compute varpool encoder;
1688         call output_varpool.
1689         (input_varpool_node): Do not always set analyzed.
1690         (input_cgraph_1): Return vector of cgraph nodes.
1691         (input_varpool_1): Return vector of varpools.
1692         (input_cgraph): Free the vectors.
1693         * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
1694         output only initializers needed.
1695         (lto_output): Only call output_cgraph.
1696         (produce_asm_for_decls): Call lto_varpool_encoder_delete.
1697         * lto-section-out.c (lto_new_out_decl_state): Initialize
1698         state->varpool_node_encoder.
1699         * lto-streamer.h (lto_varpool_encoder_d): New.
1700         (lto_out_decl_state, lto_file_decl_data): Add varpool_node_encoder.
1701         (lto_cgraph_encoder_delete, output_cgraph): Update prototype.
1702         (lto_varpool_encoder_deref, lto_varpool_encoder_lookup,
1703         lto_varpool_encoder_encode, lto_varpool_encoder_delete,
1704         lto_varpool_encoder_encode_initializer_p, lto_varpool_encoder_new):
1705         Declare.
1706         (output_varpool, input_varpool): Remove declarations.
1707
1708 2010-05-05  Jan Hubicka  <jh@suse.cz>
1709
1710         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Alias of variable
1711         with body can prevail.
1712
1713 2010-05-05  Jan Hubicka  <jh@suse.cz>
1714
1715         * lto-symtab.c (lto_symtab_merge_decls_1): Prefer declarations with
1716         size.
1717
1718 2010-05-05  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
1719
1720         * Makefile.in (build/gengtype.o): Add $(HASHTAB_H) to dependencies.
1721
1722         * gengtype.h (erro_at_line): Constify pos argument.
1723
1724         * gengtype.c: Include hashtab.h.
1725         (enum gc_used): Document GC_MAYBE_POINTED_TO.
1726         (error_at_line): Constify pos argument.
1727         (do_typedef): Initialize p->opt field.
1728         (get_file_gtfilename): Fix comment typo.
1729         (struct walk_type_data): Constify line field.
1730         (get_output_file_for_structure): New function.
1731         (write_local_func_for_structure): Constify orig_s argument.
1732         Use get_output_file_for_structure.
1733         (write_func_for_structure): Use get_output_file_for_structure.
1734         (INDENT): New define.
1735         (dump_pair, dump_type, dump_type_list, dump_typekind)
1736         (dump_gc_used, dump_options, dump_fileloc, dump_type_u_s)
1737         (dump_type_u_a, dump_type_u_param_struct, dump_everything): New
1738         functions.
1739         (seen_types): New variable.
1740         (main): New variable do_dump.  Process "-d" command line option.
1741         Call dump_everything if dump requested.
1742
1743 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
1744
1745         * var-tracking.c (var_debug_decl): Save DECL_DEBUG_EXPR value
1746         in a temporary instead of invoking the macro multiple times.
1747         (track_expr_p): Likewise.
1748
1749 2010-05-04  Neil Vachharajani <nvachhar@google.com>
1750
1751         * doc/invoke.texi (-Wcoverage-mismatch): Updated documentation as
1752         per new semantics.
1753         * opts.c (decode_options): Enable -Werror=coverage-mismatch.
1754         * coverage.c (get_coverage_counts): Always emit a warning.  Adjust
1755         conditions for printing notes.
1756         * common.opt (-Wcoverage-mismatch): Allow negative, default to
1757         true, update documentation.
1758         * Makefile.in (coverage.o): Add dependence on DIAGNOSTIC_H and intl.h.
1759
1760 2010-05-04  Jakub Jelinek  <jakub@redhat.com>
1761
1762         PR c/43981
1763         * c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
1764         on dimen.
1765
1766 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
1767
1768         PR target/43799
1769         * config/i386/i386.md (sse_prologue_save): Clobber CC register.
1770         (*sse_prologue_save_insn1): Likewise.
1771         (SSE prologue save splitter): Likewise.
1772
1773 2010-05-04  Eric Botcazou  <ebotcazou@adacore.com>
1774
1775         * tree.c (free_lang_data_in_one_sizepos): New inline function.
1776         (free_lang_data_in_type): Call it on TYPE_{MIN|MAX}_VALUE of numerical
1777         types.  Call it on TYPE_SIZE and TYPE_SIZE_UNIT of all types.
1778         (free_lang_data_in_decl): Call it on DECL_SIZE and DECL_SIZE_UNIT of
1779         all decls.  Call it on DECL_FIELD_OFFSET of fields.
1780         (find_decls_types_r): Follow DECL_VALUE_EXPR.
1781         (iterative_hash_expr) <PLACEHOLDER_EXPR>: New case.
1782
1783 2010-05-04  Martin Jambor  <mjambor@suse.cz>
1784
1785         * tree-sra.c (build_access_from_expr_1): The first parameter type
1786         changed to simple tree.
1787         (build_access_from_expr): Likewise, gsi parameter was eliminated.
1788         (scan_assign_result): Renamed to assignment_mod_result, enum elements
1789         renamed as well.
1790         (build_accesses_from_assign): Removed all parameters except for a
1791         simple gimple statement.  Now returns a simple bool.
1792         (scan_function): All non-analysis parts moved to separate functions
1793         sra_modify_function_body and ipa_sra_modify_function_body.  Removed all
1794         parameters and updated both callers.
1795         (sra_modify_expr): Removed parameter data.
1796         (sra_modify_function_body): New function.
1797         (perform_intra_sra): Call sra_modify_function_body to modify the
1798         function body.
1799         (replace_removed_params_ssa_names): Parameter data changed into
1800         adjustments vector.
1801         (sra_ipa_modify_expr): Likewise.  Also removed unused parameter gsi and
1802         changed the parameter dont_convert to convert with the opposite
1803         meaning.
1804         (sra_ipa_modify_assign): Parameter data changed into adjustments
1805         vector, return value changed to bool.
1806         (ipa_sra_modify_function_body): New function.
1807         (sra_ipa_reset_debug_stmts): Updated a comment.
1808         (modify_function): Use ipa_sra_modify_function_body to modify function
1809         body.
1810
1811 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
1812
1813         PR middle-end/43671
1814         * alias.c (true_dependence): Handle the same VALUE in x and mem.
1815         (canon_true_dependence): Likewise.
1816         (write_dependence_p): Likewise.
1817
1818 2010-05-04  Jan Hubicka  <jh@suse.cz>
1819
1820         * Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h
1821         * cgraphbuild.c: Include ipa-utils.h
1822         (record_reference_ctx): New struct.
1823         (record_reference): Simplify to work on initializers; not statements.
1824         (mark_address, mark_load, mark_store): New.
1825         (build_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
1826         walk PHI nodes too.
1827         (record_references_in_initializer): Update use of record_reference.
1828         (rebuild_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
1829         walk PHI nodes too.
1830
1831 2010-05-04  Jan Hubicka  <jh@suse.cz>
1832
1833         * lto-symtab.c (lto_cgraph_replace_node): Do not remove edges;
1834         node will be removed anyway.
1835         (lto_varpool_replace_node): Allow also unanalyzed nodes;
1836         relink aliases of node into prevailing node.
1837         * varpool.c (varpool_remove_node): Remove aliases properly;
1838         when removing node, remove all its aliases too; remove DECL_INITIAL
1839         of removed node; ggc_free the varpool node.
1840
1841 2010-05-04  Richard Guenther  <rguenther@suse.de>
1842
1843         PR tree-optimization/43879
1844         * tree-ssa-structalias.c (alias_get_name): Use
1845         DECL_ASSEMBLER_NAME if available.
1846         (create_function_info_for): Return the varinfo node.
1847         (ipa_pta_execute): Associate same-body aliases and extra names
1848         with their origin nodes varinfo.  Dump DECL_ASSEMBLER_NAME.
1849
1850 2010-05-04  Kaz Kojima  <kkojima@gcc.gnu.org>
1851
1852         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Remove static.
1853
1854 2010-05-04  Mikael Pettersson  <mikpe@it.uu.se>
1855
1856         PR bootstrap/43964
1857         * ira-color.c (assign_hard_reg): Declare rclass and add_cost
1858         only if HONOR_REG_ALLOC_ORDER is not defined.
1859
1860 2010-05-04  Richard Guenther  <rguenther@suse.de>
1861
1862         PR tree-optimization/43949
1863         * tree-vrp.c (extract_range_from_binary_expr): Only handle
1864         TRUNC_MOD_EXPR.
1865
1866 2010-04-26  Jason Merrill  <jason@redhat.com>
1867
1868         * c.opt (-fstrict-enums): New.
1869         * doc/invoke.texi (C++ Dialect Options): Document -fstrict-enums.
1870
1871 2010-05-03  David Ung <davidu@mips.com>
1872             James E. Wilson  <wilson@codesourcery.com>
1873
1874         * config/mips/mips.c (mips_output_division): If GENERATE_DIVIDE_TRAPS,
1875         emit the trap instruction before the divide for TUNE_74K.
1876
1877 2010-05-03  Steven Bosscher  <steven@gcc.gnu.org>
1878
1879         * doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.
1880         (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
1881         based on the above, for new target hook.
1882
1883         * hooks.c (hook_bool_mode_true): New generic hook.
1884         * hooks.h (hook_bool_mode_true): Add prototype.
1885
1886         * target.h (struct gcc_target): Add small_register_classes_for_mode_p
1887         target hook.
1888         * target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
1889         target hook, set to hook_bool_mode_false.
1890         * regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
1891         * reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
1892         with targetm.small_register_classes_for_mode_p.
1893         (find_reusable_reload): Likewise.
1894         (combine_reloads): Likewise.
1895         * reload1.c (reload_as_needed): Likewise.
1896         * cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
1897         * ifcvt.c (noce_process_if_block, check_cond_move_block,
1898         dead_or_predicable): Likewise.
1899         * regmove.c (optimize_reg_copy_1): Likewise.
1900         * calls.c (prepare_call_address): Likewise.
1901         (precompute_register_parameters): Likewise.
1902
1903         * config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
1904         hook definition.
1905         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
1906         implementation of the hook that considers all register classes
1907         small except for SH64.
1908         (sh_override_options): Use the new hook.
1909         * config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
1910         Add prototype.
1911
1912         * config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
1913         hook definition.
1914         * config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
1915         implementation of the hook that considers all register classes
1916         small for THUMB1.
1917         * config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
1918         Add prototype.
1919
1920         * config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
1921         hook definition.
1922         * config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
1923         implementation of the hook that considers all register classes
1924         small for MIPS16.
1925         * config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
1926         Add prototype.
1927
1928         * config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
1929         hook definition.
1930         * config/m32c/m32c.h: Likewise.
1931         * config/pdp11/pdp11.h: Likewise.
1932         * config/avr/avr.h: Likewise.
1933         * config/xtensa/xtensa.h: Likewise.
1934         * config/m68hc11/m68hc11.h: Likewise.
1935         * config/mn10300/mn10300.h: Likewise.
1936         * config/mcore/mcore.h: Likewise.
1937         * config/h8300/h8300.h: Likewise.
1938         * config/bfin/bfin.h: Likewise.
1939
1940         * config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
1941         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.
1942
1943 2010-05-03  Anatoly Sokolov  <aesok@post.ru>
1944
1945         * double-int.h (tree_to_double_int): Remove macro.
1946         (double_int_to_tree, double_int_fits_to_tree_p): Move prototypes ...
1947         * tree.h (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1948         (tree_to_double_int): New function.
1949         * double-int.c (double_int_to_tree, double_int_fits_to_tree_p):
1950         Move ...
1951         * tree.c (double_int_to_tree, double_int_fits_to_tree_p): ... here.
1952
1953 2010-05-03  Richard Guenther  <rguenther@suse.de>
1954
1955         PR tree-optimization/43971
1956         * tree-ssa-structalias.c (get_constraint_for_1): Fix
1957         constraints in the !flag_delete_null_pointer_checks case.
1958
1959 2010-05-03  Jakub Jelinek  <jakub@redhat.com>
1960
1961         PR debug/43972
1962         * config/i386/i386.c (ix86_delegitimize_address): Make sure the
1963         result mode matches original rtl mode.
1964
1965 2010-05-03  Dave Korn  <dave.korn.cygwin@gmail.com>
1966
1967         PR target/43888
1968         * config/i386/winnt.c (i386_pe_binds_local_p): Handle weak decls.
1969
1970 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1971
1972         * config/i386/i386.c (ix86_target_string): Output 'flags', not 'isa',
1973         when processing flag options.
1974
1975 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1976
1977         * gcov-iov.c (main): Change format string placeholder
1978         from %#08x to 0x%08x.
1979         * genchecksum.c (dosum): Change format string placeholder
1980         from %#02x to 0x%02x.
1981
1982 2010-05-02  Richard Guenther  <rguenther@suse.de>
1983
1984         PR tree-optimization/43879
1985         * tree-tailcall.c (find_tail_calls): Clobbers also prevent tail calls.
1986
1987 2010-05-02  Bruno Haible  <bruno@clisp.org>
1988
1989         * doc/extend.texi (Function Attributes): Fix a typo.
1990
1991 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
1992
1993         Revert:
1994         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Change format string
1995         placeholder from 0x%x to %#x.
1996         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
1997         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
1998         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
1999         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
2000         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
2001         * config/i386/i386.c (ix86_target_string): Ditto.
2002         * config/i386/i386.c (output_pic_addr_const): Ditto.
2003         (print_operand): Ditto.
2004
2005 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
2006
2007         * vmsdbgout.c (ASM_OUTPUT_DEBUG_DATA1): Change format string
2008         placeholder from 0x%x to %#x.
2009         (ASM_OUTPUT_DEBUG_DATA1): Ditto.
2010         (ASM_OUTPUT_DEBUG_DATA4): Ditto.
2011         (ASM_OUTPUT_DEBUG_DATA): Ditto.
2012         (ASM_OUTPUT_DEBUG_ADDR_DATA): Ditto.
2013         (ASM_OUTPUT_DEBUG_DATA8): Ditto.
2014         * optc-gen.awk: Ditto.
2015         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Ditto.
2016         (HOST_WIDE_INT_PRINT_HEX): Ditto.
2017         (HOST_WIDEST_INT_PRINT_HEX): Ditto.
2018         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
2019
2020 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
2021
2022         * target.h (struct calls): Add function_value_regno_p field.
2023         * target-def.h (TARGET_FUNCTION_VALUE_REGNO_P): Define.
2024         (TARGET_INITIALIZER): Use TARGET_FUNCTION_VALUE_REGNO_P.
2025         * targhooks.c (default_function_value_regno_p): New function.
2026         * targhooks.h (default_function_value_regno_p): Declare function.
2027         * rtlanal.c (keep_with_call_p): Use function_value_regno_p hook.
2028         * builtins.c. (apply_result_size): (Ditto.).
2029         * combine.c. (likely_spilled_retval_p): (Ditto.).
2030         * mode-switching.c. Include 'target.h'.
2031         (create_pre_exit): Use function_value_regno_p hook.
2032         * Makefile.in (mode-switching.o): Add dependency on TARGET_H.
2033         * doc/tm.texi (FUNCTION_VALUE_REGNO_P,
2034         TARGET_FUNCTION_VALUE_REGNO_P): Revise documentation.
2035
2036         * config/i386/i386.h (TARGET_FUNCTION_VALUE_REGNO_P): Remove macro.
2037         * config/i386/i386.c (TARGET_FUNCTION_VALUE_REGNO_P): Define macro.
2038         (ix86_function_value_regno_p): Declare as static, change argument
2039         type to const unsigned int.
2040         * config/i386/i386-protos.h (ix86_function_value_regno_p): Remove.
2041
2042 2010-05-01  Richard Guenther  <rguenther@suse.de>
2043
2044         PR tree-optimization/43949
2045         * tree-vrp.c (ssa_name_nonnegative_p): Return true for unsigned
2046         types.
2047         (extract_range_from_binary_expr): Handle *_MOD_EXPR.
2048
2049 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
2050
2051         * rtl.h (CONST_DOUBLE_P): Define.
2052         (rtx_to_double_int): Declare.
2053         * emit-rtl.c (rtx_to_double_int): New function.
2054         * dwarf2out.c (insert_double): New function.
2055         (loc_descriptor, add_const_value_attribute): Clean up, use
2056         rtx_to_double_int and insert_double functions.
2057
2058 2010-05-01  Jonathan Wakely  <jwakely.gcc@gmail.com>
2059
2060         * doc/extend.texi (Inline): Add missing return keyword to examples.
2061         (Function Attributes, Variable Attributes, Pragmas): Hyphenate
2062         "command-line".
2063
2064 2010-04-30  Eric Botcazou  <ebotcazou@adacore.com>
2065
2066         * tree-ssa-loop-ivopts.c (may_be_unaligned_p): Check the alignment of
2067         the variable part of the offset as well.  Use highest_pow2_factor for
2068         all alignment checks.
2069
2070 2010-04-30  Richard Guenther  <rguenther@suse.de>
2071
2072         PR tree-optimization/43879
2073         * tree-ssa-structalias.c (type_could_have_pointers): Functions
2074         can have pointers.
2075
2076 2010-04-30  Jan Hubicka  <jh@suse.cz>
2077
2078         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Chose var with
2079         varpool.
2080         (lto_symtab_merge_decls_1): Remove logic looking for an initializer.
2081
2082 2010-04-30  Jan Hubicka  <jh@suse.cz>
2083
2084         * cgraph.h (cgraph_node_set_nonempty_p, varpool_node_set_nonempty_p):
2085         New.
2086         * lto-cgraph.c (input_cgraph): Remove call to lto_mark_file_for_ltrans.
2087         * lto-streamer.h (lto_file_decl_data): Remove needs_ltrans_p.
2088         (lto_file_needs_ltrans_p, lto_mark_file_for_ltrans,
2089         cgraph_node_set_needs_ltrans_p): Remove.
2090
2091 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
2092
2093         * sdbout.c: Include vec.h, do not include varray.h.
2094         (deferred_global_decls, sdbout_global_decl,
2095         sdbout_finish, sdbout_init): Use VEC instead of VARRAY.
2096         * toplev.c: Do not include varray.h.
2097         (dump_memory_report): Do not dump VARRAY statistics.
2098         * gengtype.c (open_base_file): Ignore varray.h.
2099         * Makefile.in: Update for abovementioned changes.
2100         Remove all traces of varray.c and varray.h.
2101         * varray.c: Remove file.
2102         * varray.h: Remove file.
2103
2104 2010-04-30  Jan Hubicka  <jh@suse.cz>
2105
2106         * lto-cgraph.c (lto_output_varpool_node): Always output constant pool
2107         references.
2108
2109 2010-04-30  Jan Hubicka  <jh@suse.cz>
2110
2111         * tree-profile.c (tree_init_ic_make_global_vars): Mark new decls as
2112         needed.
2113
2114 2010-04-30  Richard Guenther  <rguenther@suse.de>
2115
2116         * tree-ssa-structalias.c (get_constraint_for_1): Generate
2117         constraints for CONSTRUCTOR.
2118
2119 2010-04-30  Richard Guenther  <rguenther@suse.de>
2120
2121         PR lto/43946
2122         * passes.c (init_optimization_passes): Move pass_ipa_free_lang_data
2123         first after all lowering passes.
2124
2125 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
2126
2127         * toplev.c: Include varray.h for statistics dumping.
2128         * tree.h: Do not declare varray_head_tag.
2129         * tree-into-ssa.c, tree-ssa-uninit.c, tree-phinodes.c, omega.c,
2130         regs.h, lto-cgraph.c, tree-ssa-loop-ivopts.c, tree-nomudflap.c,
2131         c-objc-common.c, lto-streamer-out.c, tree-ssa-propagate.c,
2132         gimple-low.c, c-semantics.c, dwarf2out.c, lto-streamer-in.c,
2133         lto-section-in.c, alias.c, tree-if-conv.c, gimplify.c, ggc-zone.c,
2134         tree-ssa.c, tree-ssa-loop-prefetch.c, integrate.h, c-gimplify.c,
2135         c-common.c, c-common.h, reg-stack.c, basic-block.h,
2136         tree-ssa-structalias.c, lto-section-out.c, tree-ssanames.c: Do not
2137         include varray.h.
2138         * Makefile.in: Update for abovementioned changes.
2139
2140 2010-04-30  Jakub Jelinek  <jakub@redhat.com>
2141
2142         PR debug/43942
2143         * tree.c (auto_var_in_fn_p): Return false for DECL_EXTERNAL vars.
2144
2145 2010-04-30  Hariharan Sandanagobalane  <hariharan@picochip.com>
2146
2147         * config/picochip/picochip.c (picochip_legitimize_address): Define.
2148         Use this function to do machine-specific conversion.
2149         (picochip_legitimize_reload_address): Likewise.
2150         (picochip_legitimate_address_p): Check valid base register only if
2151         strict.
2152         (picochip_check_conditional_copy): Check for modw only if opnd is
2153         register.
2154         * config/picochip/picochip.h (LEGITIMIZE_RELOAD_ADDRESS): Use this
2155         to call the function in c.
2156         * config/picochip/picochip-protos.h
2157         (picochip_legitimize_reload_address): Define.
2158         * config/picochip/picochip.md (supported_compare1): Define.
2159
2160 2010-04-30  Jan Hubicka  <jh@suse.cz>
2161
2162         * cgraph.h (cgraph_local_info): Remove for_functions_valid.
2163         (cgraph_global_info): Remove inlined.
2164         (LTO_cgraph_tag_names): Remove.
2165         (LTO_cgraph_tags, LCC_NOT_FOUND): Move to ...
2166         * lto-cgraph.c (LTO_cgraph_tags, LCC_NOT_FOUND): ... here;
2167         simplify cgraph tags and document.
2168         (lto_output_node): Use only LTO_cgraph_unavail_node and
2169         LTO_cgraph_analyzed_node; Do not save analzed, reachable,
2170         for_functions_valid, global info, process and output flags.
2171         (input_overwrite_node): Initialize estimated stack size and
2172         estimated growth.  Do not read flags we no longer store.
2173         (input_node): Likewise do not read info no longer stored.
2174         * ipa-inline.c (cgraph_mark_inline_edge): Do not set global.inlined
2175         flag.
2176
2177 2010-04-30  Richard Guenther  <rguenther@suse.de>
2178
2179         PR tree-optimization/43879
2180         * tree-ssa-structalias.c (get_constraint_for_1): Properly
2181         handle non-zero initializers.
2182
2183 2010-04-30  Richard Guenther  <rguenther@suse.de>
2184
2185         * builtins.c (fold_builtin_1): Delete free (0).
2186
2187 2010-04-29  Jan Hubicka  <jh@suse.cz>
2188
2189         * gengtype.c (open_base_files): Add lto-streamer.h
2190         * cgraph.h (cgraph_local_info): lto_file_data is now in GGC.
2191         (pass_ipa_cp): GGC collect.
2192         * toplev. (compile_file): Do not output symbols.
2193         * ipa-inline.c (pass_ipa_inline): Add ggc collect.
2194         * timevar.def (TV_VARPOOL, TV_IPA_LTO_DECL_INIT_IO,
2195         TV_IPA_LTO_DECL_MERGE, TV_IPA_LTO_CGRAPH_MERGE, TV_VAROUT): New.
2196         * lto-section-in.c: Include ggc.h
2197         (lto_new_in_decl_state): Alloc in GGC.
2198         (lto_delete_in_decl_state): Likewise.
2199         * ipa.c (pass_ipa_function_visibility, pass_ipa_whole_program):
2200         Collect.
2201
2202 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
2203
2204         PR target/42895
2205         * doc/tm.texi (ADJUST_REG_ALLOC_ORDER): Renamed from
2206         ORDER_REGS_FOR_LOCAL_ALLOC.  All instances of this macro changed.
2207         (HONOR_REG_ALLOC_ORDER): Describe new macro.
2208         * ira.c (setup_alloc_regs): Use ADJUST_REG_ALLOC_ORDER if defined.
2209         * ira-color.c (assign_hard_reg): Take prologue/epilogue costs into
2210         account only if HONOR_REG_ALLOC_ORDER is not defined.
2211         * config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Define.
2212         * system.h (ORDER_REGS_FOR_LOCAL_ALLOC): Poison.
2213
2214 2010-04-29  Jon Grant  <04@jguk.org>
2215
2216         * collect2.c (vflag): Change type from int to bool.
2217         (debug): Likewise.
2218         (helpflag): New global bool.
2219         (main): Set vflag and debug with boolean, not integer truth values.
2220         Accept new "--help" option and output usage text if found.
2221         * collect2.h (vflag): Update prototype.
2222         (debug): Likewise.
2223
2224 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
2225
2226         PR bootstrap/43936
2227         * plugin.h (flag_plugin_added): Moved out of invoke_plugin_callbacks.
2228
2229 2010-04-29  Richard Guenther  <rguenther@suse.de>
2230
2231         PR bootstrap/43935
2232         * plugin.h (invoke_plugin_callbacks): Annotate arguments
2233         with ATTRIBUTE_UNUSED.
2234
2235 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
2236
2237         PR target/43921
2238         * config/i386/i386.c (get_some_local_dynamic_name): Replace
2239         INSN_P with NONDEBUG_INSN_P.
2240         (distance_non_agu_define): Likewise.
2241         (distance_agu_use): Likewise.
2242
2243 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
2244
2245         From Dominique d'Humieres <dominiq@lps.ens.fr>
2246         PR bootstrap/43858
2247         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs to compute
2248         test_set.
2249
2250 2010-04-29  Brian Hackett  <bhackett1024@gmail.com>
2251
2252         * plugin.h (invoke_plugin_callbacks): New inline function.
2253         * plugin.c (flag_plugin_added): New global flag.
2254         (add_new_plugin): Initialize above flag.
2255         (invoke_plugin_callbacks): Rename to ...
2256         (invoke_plugin_callbacks_full): ... this.
2257
2258 2010-04-28  Jan Hubicka  <jh@suse.cz>
2259
2260         * lto-symtab.c (lto_symtab_entry_def) Add vnode.
2261         (lto_varpool_replace_node): New.
2262         (lto_symtab_resolve_symbols): Resolve varpool nodes.
2263         (lto_symtab_merge_decls_1): Prefer decls with varpool node.
2264         (lto_symtab_merge_cgraph_nodes_1): Merge varpools.
2265         * cgraph.h (varpool_node_ptr): New type.
2266         (varpool_node_ptr): New vector.
2267         (varpool_node_set_def): New structure.
2268         (varpool_node_set): New type.
2269         (varpool_node_set): New vector.
2270         (varpool_node_set_element_def): New structure.
2271         (varpool_node_set_element, const_varpool_node_set_element): New types.
2272         (varpool_node_set_iterator): New type.
2273         (varpool_node): Add prev pointers, add used_from_other_partition,
2274         in_other_partition.
2275         (varpool_node_set_new, varpool_node_set_find, varpool_node_set_add,
2276         varpool_node_set_remove, dump_varpool_node_set, debug_varpool_node_set,
2277         varpool_get_node, varpool_remove_node): Declare.
2278         (vsi_end_p, vsi_next, vsi_node, vsi_start, varpool_node_in_set_p,
2279         varpool_node_set_size): New inlines.
2280         * cgraph.c (dump_cgraph_node): Dump asm names of aliases.
2281         * tree-pass.h (varpool_node_set_def): Forward declare.
2282         (ipa_opt_pass_d): Summary writting takes vnode sets too.
2283         (ipa_write_optimization_summaries): Update prototype.
2284         * ipa-cp.c (ipcp_write_summary): Update.
2285         * ipa-reference.c (ipa_reference_write_summary): Update.
2286         * lto-cgraph.c (lto_output_varpool_node): New static function.
2287         (output_varpool): New function.
2288         (input_varpool_node): New static function.
2289         (input_varpool_1): New function.
2290         (input_cgraph): Input varpool.
2291         * ipa-pure-const.c (pure_const_write_summary): Update.
2292         * lto-streamer-out.c (lto_output): Update, output varpool too.
2293         (write_global_stream): Kill WPA hack.
2294         (produce_asm_for_decls): Update.
2295         (output_alias_pair_p): Handle variables.
2296         (output_unreferenced_globals): Output only needed partition of varpool.
2297         * ipa-inline.c (inline_write_summary): Update.
2298         * lto-streamer-in.c (lto_input_tree_ref, lto_input_tree): Do not build
2299         cgraph.
2300         * lto-section-in.c (lto_section_name): Add varpool and jump funcs.
2301         * ipa.c (hash_varpool_node_set_element, eq_varpool_node_set_element,
2302         varpool_node_set_new, varpool_node_set_add,
2303         varpool_node_set_remove, varpool_node_set_find, dump_varpool_node_set,
2304         debug_varpool_node_set): New functions.
2305         * passes.c (rest_of_decl_compilation): when in LTO do not finalize.
2306         (execute_one_pass): Process new decls too.
2307         (ipa_write_summaries_2): Pass around vsets.
2308         (ipa_write_summaries_1): Likewise.
2309         (ipa_write_summaries): Build vset; be more selective about cgraph nodes
2310         to add.
2311         (ipa_write_optimization_summaries_1): Pass around vsets.
2312         (ipa_write_optimization_summaries): Likewise.
2313         * varpool.c (varpool_get_node): New.
2314         (varpool_node): Update doubly linked lists.
2315         (varpool_remove_node): New.
2316         (dump_varpool_node): More dumping.
2317         (varpool_enqueue_needed_node): Update doubly linked lists.
2318         (decide_is_variable_needed): Kill ltrans hack.
2319         (varpool_finalize_decl): Kill lto hack.
2320         (varpool_assemble_decl): Skip decls in other partitions.
2321         (varpool_assemble_pending_decls): Update doubly linkes lists.
2322         (varpool_empty_needed_queue): Likewise.
2323         (varpool_extra_name_alias): Likewise.
2324         * lto-streamer.c (lto_get_section_name): Add vars section.
2325         * lto-streamer.h (lto_section_type): Update.
2326         (output_varpool, input_varpool): Declare.
2327
2328 2010-04-28  Mike Stump  <mikestump@comcast.net>
2329
2330         * config/i386/darwin.h (CC1_SPEC): Ignore -mdynamic-no-pic for now.
2331
2332 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
2333
2334         * lto-streamer-in.c (unpack_ts_type_value_fields): Replace test for
2335         record or union type with RECORD_OR_UNION_TYPE_P predicate.
2336         (lto_input_ts_type_tree_pointers): Likewise.
2337         * lto-streamer-out.c (pack_ts_type_value_fields): Likewise.
2338         (lto_output_ts_type_tree_pointers): Likewise.
2339
2340 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
2341
2342         Uniquization of constants at the Tree level
2343         * tree.h (DECL_IN_CONSTANT_POOL): New macro.
2344         (tree_decl_with_vis): Add in_constant_pool bit, move shadowed_for_var_p
2345         bit to the end.
2346         (tree_output_constant_def): Declare.
2347         * gimplify.c (gimplify_init_constructor): When using block copy, first
2348         uniquize the constant constructor on the RHS.
2349         * lto-streamer-in.c (unpack_ts_decl_with_vis_value_fields): Deal with
2350         DECL_IN_CONSTANT_POOL flag.
2351         * lto-streamer-out.c (pack_ts_decl_with_vis_value_fields): Likewise.
2352         * varasm.c (make_decl_rtl): Deal with variables belonging to the global
2353         constant pool.
2354         (assemble_variable): Deal with symbols belonging to the tree constant
2355         pool.
2356         (get_constant_section): Add ALIGN parameter and simplify.
2357         (build_constant_desc): Build a VAR_DECL and attach it to the symbol.
2358         (assemble_constant_contents): Use the expression of the VAR_DECL.
2359         (output_constant_def_contents): Use the alignment of the VAR_DECL.
2360         (tree_output_constant_def): New global function.
2361         (mark_constant): Use the expression of the VAR_DECL.
2362         (place_block_symbol): Use the alignment of the VAR_DECL and the size of
2363         its expression.
2364         (output_object_block): Likewise and assemble the expression.
2365
2366 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
2367
2368         * lto-streamer.c [LTO_STREAMER_DEBUG] (tree_htab, tree_hash_entry,
2369         hash_tree, eq_tree): New tree hash table.
2370         (lto_streamer_init) [LTO_STREAMER_DEBUG]: Initialize it.
2371         [LTO_STREAMER_DEBUG] (lto_orig_address_map, lto_orig_address_get,
2372         lto_orig_address_remove): Reimplement.
2373
2374 2010-04-28  Xinliang David Li  <davidxl@google.com>
2375
2376         PR c/42643
2377         * tree-ssa-uninit.c (can_skip_redundant_opnd): New function.
2378         (compute_uninit_opnds_pos): New function.
2379         (is_non_loop_exit_postdominating): New function.
2380         (compute_control_dep_chain): New function.
2381         (find_pdom): New function.
2382         (convert_control_dep_chain_into_preds): New function.
2383         (find_predicates): New function.
2384         (find_control_equiv_block): New function.
2385         (collect_phi_def_edges): New function.
2386         (find_def_preds): New function.
2387         (find_dom): New function.
2388         (dump_predicates): New function.
2389         (get_cmp_code): New function.
2390         (is_value_included_in): New function.
2391         (find_matching_predicate_in_rest_chains): New function.
2392         (use_pred_not_overlap_with_undef_path_pred): New function.
2393         (is_use_properly_guarded): New function.
2394         (normalize_cond_1): New function.
2395         (is_and_or_or): New function.
2396         (normalize_cond): New function.
2397         (is_gcond_subset_of): New function.
2398         (is_subset_of_any): New function.
2399         (is_or_set_subset_of): New function.
2400         (is_and_set_subset_of): New function.
2401         (is_norm_cond_subset_of): New function.
2402         (is_pred_expr_subset_of): New function.
2403         (is_pred_chain_subset_of): New function.
2404         (is_included_in): New function.
2405         (is_superset_of): New function.
2406         (find_uninit_use): New function.
2407         (warn_uninitialized_phi): New function.
2408         (compute_possibly_undefined_names): New function.
2409         (ssa_undefined_value_p): New function.
2410         (execute_late_warn_uninitialized): New function.
2411         * tree-ssa.c (ssa_undefined_value_p): Removed.
2412         (warn_uninit): Changed to extern.
2413         (warn_uninitialized_phi): Removed.
2414         (warn_uninitialized_vars): Changed to extern.
2415         (execute_late_warn_uninitialized): Removed
2416         * tree-flow.h: Add new prototypes.
2417         * timevar.def: Add new time variable.
2418         * Makefile.in: Add new build file.
2419
2420 2010-04-28  Uros Bizjak  <ubizjak@gmail.com>
2421
2422         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use gnu_unique_object
2423         type if available.
2424
2425 2010-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2426
2427         PR target/22224
2428         * config/alpha/osf5.h (ASM_OUTPUT_LOCAL): Redefine.
2429
2430 2010-04-28  Martin Jambor  <mjambor@suse.cz>
2431
2432         * cgraph.h (struct cgraph_node): New field indirect_calls.
2433         (struct cgraph_indirect_call_info): New type.
2434         (struct cgraph_edge): Removed field indirect_call. New fields
2435         indirect_info, indirect_inlining_edge and indirect_unknown_callee.
2436         (cgraph_create_indirect_edge): Declare.
2437         (cgraph_make_edge_direct): Likewise.
2438         (enum LTO_cgraph_tags): New item LTO_cgraph_indirect_edge.
2439         * ipa-prop.h (struct ipa_param_call_note): Removed.
2440         (struct ipa_node_params): Removed field param_calls.
2441         (ipa_create_all_structures_for_iinln): Declare.
2442         * cgraph.c: Described indirect edges and uids in initial comment.
2443         (cgraph_add_edge_to_call_site_hash): New function.
2444         (cgraph_edge): Search also among the indirect edges, use
2445         cgraph_add_edge_to_call_site_hash to add edges to the call site hash.
2446         (cgraph_set_call_stmt): Possibly turn an indirect edge into a direct
2447         one, use cgraph_add_edge_to_call_site_hash to add edges to the call
2448         site hash.
2449         (initialize_inline_failed): Assign a reason to indirect edges.
2450         (cgraph_create_edge_1): New function.
2451         (cgraph_create_edge): Moved some functionality to
2452         cgraph_create_edge_1.
2453         (cgraph_create_indirect_edge): New function.
2454         (cgraph_edge_remove_callee): Add an assert checking for
2455         non-indirectness.
2456         (cgraph_edge_remove_caller): Special-case indirect edges.
2457         (cgraph_remove_edge): Likewise.
2458         (cgraph_set_edge_callee): New function.
2459         (cgraph_redirect_edge_callee): Use cgraph_set_edge_callee.
2460         (cgraph_make_edge_direct): New function.
2461         (cgraph_update_edges_for_call_stmt_node): Do nothing only when also
2462         the declaration of the call statement matches.
2463         (cgraph_node_remove_callees): Special-case indirect edges.
2464         (cgraph_clone_edge): Likewise.
2465         (cgraph_clone_node): Clone also the indirect edges.
2466         (dump_cgraph_node): Dump indirect_inlining_edge flag instead of
2467         indirect_call, dump count of indirect_calls edges.
2468         * ipa-prop.c (iinlining_processed_edges): New variable.
2469         (ipa_note_param_call): Create indirect edges instead of
2470         creating notes.  New parameter node.
2471         (ipa_analyze_call_uses): New parameter node, pass it on to
2472         ipa_note_param_call.
2473         (ipa_analyze_stmt_uses): Likewise.
2474         (ipa_analyze_params_uses): Pass node to ipa_analyze_stmt_uses.
2475         (print_edge_addition_message): Work on edges rather than on notes.
2476         (update_call_notes_after_inlining): Likewise, renamed to
2477         update_indirect_edges_after_inlining.
2478         (ipa_create_all_structures_for_iinln): New function.
2479         (ipa_free_node_params_substructures): Do not free notes.
2480         (ipa_edge_duplication_hook): Propagate bits within
2481         iinlining_processed_edges bitmap.
2482         (ipa_node_duplication_hook): Do not duplicate notes.
2483         (free_all_ipa_structures_after_ipa_cp): Renamed to
2484         ipa_free_all_structures_after_ipa_cp.
2485         (free_all_ipa_structures_after_iinln): Renamed to
2486         ipa_free_all_structures_after_iinln.
2487         (ipa_write_param_call_note): Removed.
2488         (ipa_read_param_call_note): Removed.
2489         (ipa_write_indirect_edge_info): New function.
2490         (ipa_read_indirect_edge_info): Likewise.
2491         (ipa_write_node_info): Do not stream notes, do stream information
2492         in indirect edges.
2493         (ipa_read_node_info): Likewise.
2494         (lto_ipa_fixup_call_notes): Removed.
2495         * ipa-cp.c (pass_ipa_cp): Set stmt_fixup to NULL.
2496         * ipa-inline.c (pass_ipa_inline): Likewise.
2497         * cgraphunit.c (verify_cgraph_node): Check also indirect edges.
2498         * cif-code.def (INDIRECT_UNKNOWN_CALL): New reason.
2499         * tree-inline.c (copy_bb): Removed an unnecessary double check for
2500         is_gimple_call.
2501         * tree-inline.c (get_indirect_callee_fndecl): Do not consider indirect
2502         edges.
2503         * lto-cgraph.c (output_outgoing_cgraph_edges): New function.
2504         (output_cgraph): Stream also indirect edges.
2505         (lto_output_edge): Added capability to stream indirect edges.
2506         (input_edge): Likewise.
2507         (input_cgraph_1): Likewise.
2508         * lto-streamer-in.c (fixup_call_stmt_edges_1): Fixup also statements
2509         of indirect edges.
2510
2511 2010-04-28  Richard Guenther  <rguenther@suse.de>
2512
2513         PR tree-optimization/43879
2514         PR tree-optimization/43909
2515         * tree-ssa-structalias.c (struct variable_info): Add
2516         only_restrict_pointers flag.
2517         (new_var_info): Initialize it.  Increment stats.total_vars here.
2518         (create_function_info_for): Do not increment stats.total_vars here.
2519         (get_function_part_constraint): Fix build with C++.
2520         (insert_into_field_list): Remove.
2521         (push_fields_onto_fieldstack): Properly merge fields.
2522         (create_variable_info_for): Split and simplify.
2523         (create_variable_info_for_1): New piece.
2524         (intra_create_variable_infos): Properly make restrict constraints
2525         from parameters.
2526
2527 2010-04-28  Richard Guenther  <rguenther@suse.de>
2528
2529         PR c++/43880
2530         * tree-inline.c (copy_bind_expr): Also copy bind expr vars value-exprs.
2531
2532 2010-04-27  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2533             Jan Hubicka <hubicka@ucw.cz>
2534
2535         * doc/invoke.texi (-Wsuggest-attribute=const,
2536         -Wsuggest-attribute=pure): Document.
2537         * ipa-pure-const.c: Include toplev.h, intl.h and opts.h.
2538         (function_always_visible_to_compiler_p,
2539         suggest_attribute, warn_function_pure, warn_function_const):
2540         New functions.
2541         (check_call): Improve debug info.
2542         (analyze_function): Do not check availability.
2543         (add_new_function): Check availability.
2544         (propagate): Output warnings.
2545         (skip_function_for_local_pure_const): New function.
2546         (local_pure_const): Use it; output warnings.
2547         * common.opt (Wsuggest-attribute=const,
2548         Wsuggest-attribute=pure): New.
2549
2550 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
2551
2552         * dwarf2out.c (def_cfa_1): After DW_CFA_def_cfa_expression
2553         force using DW_CFA_def_cfa instead of DW_CFA_def_cfa_register
2554         or DW_CFA_def_cfa_offset{,_sf}.
2555
2556 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
2557
2558         * tree.h: Fix truncated long macros.
2559
2560 2010-04-27  Kai Tietz  <kai.tietz@onevision.com>
2561
2562         * collect2.c (TARGET_64BIT): Redefine to target's default.
2563         * tlink.c: Likewise.
2564         * config/i386/cygming.h (USER_LABEL_PREFIX): Define
2565         dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
2566         * config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
2567         for underscoring __USER_LABEL_PREFIX__.
2568         * config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
2569         (SUB_LINK_ENTRY32): New.
2570         (SUB_LINK_ENTRY64): New.
2571         (LINK_SPEC): Replace entry point spec by SUB_LINK_ENTRY.
2572         * config/i386/mingw32 (SUB_LINK_ENTRY32): New.
2573         (SUB_LINK_ENTRY64): New.
2574         (SUB_LINK_ENTRY): New.
2575         (LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
2576         (DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
2577         x64 target is choosen.
2578         * config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
2579         * configure: Regenerated.
2580         * configure.ac (leading-mingw64-underscores): Option added.
2581
2582 2010-04-27  Jan Hubicka  <jh@suse.cz>
2583
2584         * doc/invoke.texi (-fipa-profile): Document.
2585         * opts.c (decode_options): Enable ipa-profile at -O1.
2586         * timevar.def (TV_IPA_PROFILE): Define.
2587         * common.opt (fipa-profile): Add.
2588         * cgraph.c (cgraph_clone_node): Set local flag and clear vtable method
2589         flag for clones.
2590         (cgraph_propagate_frequency): Handle only local ones.
2591         * tree-pass.h (pass_ipa_profile): Declare.
2592         * ipa-profile.c (gate_profile): Use flag_ipa_profile.
2593         (pass_ipa_profile): Use TV_IPA_PROFILE.
2594         * ipa.c (ipa_profile): New function.
2595         (gate_ipa_profile): Likewise.
2596         (pass_ipa_profile): New global variable.
2597         * passes.c (pass_ipa_profile): New.
2598
2599 2010-04-27  Nathan Froyd  <froydnj@codesourcery.com>
2600
2601         * config/arm/arm.c (arm_expand_builtin): Remove redundant declaration.
2602
2603 2010-04-27  Martin Jambor  <mjambor@suse.cz>
2604
2605         PR middle-end/43812
2606         * ipa.c (dissolve_same_comdat_group_list): New function.
2607         (function_and_variable_visibility): Call
2608         dissolve_same_comdat_group_list when comdat group contains external or
2609         newly local nodes.
2610         * cgraphunit.c (verify_cgraph_node): Verify that same_comdat_group
2611         lists are circular and that they contain only DECL_ONE_ONLY nodes.
2612
2613 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
2614
2615         * varasm.c (decode_addr_const): Handle special case of INDIRECT_REF.
2616         (const_hash_1) <VECTOR_CST>: New case.
2617         (compare_constant) <VECTOR_CST>: Likewise.
2618         <ADDR_EXPR>: Deal with LABEL_REFs.
2619         (copy_constant) <VECTOR_CST>: New case.
2620
2621 2010-04-27  Jan Hubicka  <jh@suse.cz>
2622
2623         * cgraph.c (cgraph_propagate_frequency): New function.
2624         * cgraph.h (cgraph_propagate_frequency): Declare.
2625         * ipa-inline.c (cgraph_clone_inlined_nodes): Call
2626         cgraph_propagate_frequency.
2627
2628 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
2629
2630         * unwind-dw2.c (_Unwind_DebugHook): Add used and noclone attributes.
2631
2632 2010-04-27  Bernd Schmidt  <bernds@codesourcery.com>
2633
2634         PR target/40657
2635         * config/arm/arm.c (thumb1_extra_regs_pushed): New function.
2636         (thumb1_expand_prologue, thumb1_output_function_prologue): Call it
2637         here to determine which regs to push and how much stack to reserve.
2638
2639 2010-04-27  Jie Zhang  <jie@codesourcery.com>
2640
2641         * doc/gimple.texi (gimple_statement_with_ops): Remove
2642         addresses_taken field.
2643         (gimple_statement_with_memory_ops): Likewise.
2644
2645 2010-04-27  Jan Hubicka  <jh@suse.cz>
2646
2647         * tree-inline.c (eni_inlining_weights): Remove.
2648         (estimate_num_insns): Special case more builtins.
2649
2650 2010-04-27  Shujing Zhao  <pearly.zhao@oracle.com>
2651
2652         PR c/32207
2653         * c-typeck.c (build_binary_op): Move forward check for comparison
2654         pointer with null pointer constant and adjust the diagnostic message.
2655
2656 2010-04-27  Dave Korn  <dave.korn.cygwin@gmail.com>
2657
2658         PR lto/42776
2659         * configure.ac (gcc_cv_as_section_has_align): Set if installed
2660         binutils supports extended .section directive needed by LTO, or
2661         warn if older binutils found.
2662         (LTO_BINARY_READER): New AC_SUBST'd variable.
2663         (LTO_USE_LIBELF): Likewise.
2664         * gcc/config.gcc (lto_binary_reader): New target-specific configure
2665         variable.
2666         * gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
2667         (LTO_USE_LIBELF): Likewise.
2668         * configure: Regenerate.
2669
2670         * collect2.c (is_elf): Rename from this ...
2671         (is_elf_or_coff): ... to this, and recognize and allow i386 COFF
2672          object files in addition to ELF-formatted ones.
2673         (scan_prog_file): Caller updated.  Also allow for LTO info marker
2674         symbol to be prefixed or not by an extra underscore.
2675
2676         * config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
2677         * config/i386/winnt.c: Also #include lto-streamer.h
2678         (i386_pe_asm_named_section): Specify 1-byte section alignment for
2679         LTO named sections.
2680         (i386_pe_asm_output_aligned_decl_common): Add comment.
2681         (i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
2682
2683 2010-04-27  Hans-Peter Nilsson  <hp@bitrange.com>
2684
2685         PR target/43889
2686         * config/mmix/mmix.md ("*divdi3_nonknuth", "*moddi3_nonknuth"):
2687         Add missing earlyclobber for second alternative.
2688
2689 2010-04-26  Bernd Schmidt  <bernds@codesourcery.com>
2690
2691         * df-problems.c (df_simulate_initialize_forwards): Set, don't clear,
2692         bits for artificial defs at the top of the block.
2693         * fwprop.c (single_def_use_enter_block): Don't call it.
2694
2695 2010-04-26  Jack Howarth <howarth@bromo.med.uc.edu>
2696
2697         PR 43715
2698         * gcc/configure.ac: Use "$gcc_cv_nm -g" on darwin
2699         instead of "$gcc_cv_objdump -T".
2700         Use "-undefined dynamic_lookup" on darwin.
2701         * gcc/configure: Regenerate.
2702
2703 2010-04-26  Jakub Jelinek  <jakub@redhat.com>
2704
2705         PR c/43893
2706         * c-omp.c (c_finish_omp_for): Handle also EQ_EXPR.
2707
2708 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
2709
2710         * c-parser.c (struct c_token): Move location field up.
2711         * c-tree.h (struct c_typespec): Move expr_const_operands field up.
2712         (struct c_declspecs): Convert typespec_word, storage_class, and
2713         default_int_p into bitfields.
2714         (struct c_declarator): Move loc field up.
2715
2716 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
2717
2718         * cfgloop.h (struct loop): Move can_be_parallel field up.
2719         * ipa-prop.h (struct ip_node_params): Move bitfields up.
2720         * tree-ssa-loop-ivopts.c (struct version_info): Move inv_id field
2721         down.
2722         (struct iv_cand): Convert pos field into a bitfield.
2723         * tree-vectorizer.h (struct _loop_vec_info): Move loop_line_number
2724         field up.
2725         (struct _stmt_vec_info): Shuffle fields for better packing.
2726
2727 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
2728
2729         * varasm.c (IN_NAMED_SECTION): Remove guard.
2730         * config/arm/unknown-elf.h (IN_NAMED_SECTION): Rename to...
2731         (IN_NAMED_SECTION_P): ...this.
2732         (ASM_OUTPUT_ALIGNED_BSS): Adjust for above renaming.
2733         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.
2734
2735 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
2736
2737         * gimplify.c (gimplify_cond_expr): Use THEN_ and ELSE_ local variables.
2738         Use VOID_TYPE_P for all void type tests.  Adjust TYPE variable instead
2739         of shadowing it.  Fix comments.
2740
2741 2010-04-26  Jan Hubicka  <jh@suse.cz>
2742
2743         * cgraph.c (cgraph_create_node): Set node frequency to normal.
2744         (cgraph_clone_node): Copy function frequency.
2745         * cgraph.h (node_frequency): New enum
2746         (struct cgraph_node): Add.
2747         * final.c (rest_of_clean_state): Update.
2748         * lto-cgraph.c (lto_output_node): Output node frequency.
2749         (input_overwrite_node): Input node frequency.
2750         * tre-ssa-loop-ivopts (computation_cost): Update.
2751         * lto-streamer-out.c (output_function): Do not output function
2752         frequency.
2753         * predict.c (maybe_hot_frequency_p): Update and handle functions
2754         executed once.
2755         (cgraph_maybe_hot_edge_p): Likewise; use cgraph frequency instead of
2756         attribute lookup.
2757         (probably_never_executed_bb_p, optimize_function_for_size_p): Update.
2758         (compute_function_frequency): Set noreturn functions to be executed
2759         once.
2760         (choose_function_section): Update.
2761         * lto-streamer-in.c (input_function): Do not input function frequency.
2762         * function.c (allocate_struct_function): Do not initialize function
2763         frequency.
2764         * function.h (function_frequency): Remove.
2765         (struct function): Remove function frequency.
2766         * ipa-profile.c (CGRAPH_NODE_FREQUENCY): Remove.
2767         (try_update): Update.
2768         * tree-inline.c (initialize_cfun): Do not update function frequency.
2769         * passes.c (pass_init_dump_file): Update.
2770         * i386.c (ix86_compute_frame_layout): Update.
2771         (ix86_pad_returns): Update.
2772
2773 2010-04-26  Jie Zhang  <jie@codesourcery.com>
2774
2775         PR tree-optimization/43833
2776         * tree-vrp.c (range_int_cst_p): New.
2777         (range_int_cst_singleton_p): New.
2778         (extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
2779         when both operands are constants.  Use range_int_cst_p in
2780         BIT_IOR_EXPR case.
2781
2782 2010-04-26  Jan Hubicka  <jh@suse.cz>
2783
2784         * cgraphunit.c (cgraph_copy_node_for_versioning): Fix profile updating.
2785
2786 2010-04-26  Richard Guenther  <rguenther@suse.de>
2787
2788         PR lto/43080
2789         * gimple.c (gimple_decl_printable_name): Deal gracefully
2790         with a NULL DECL_NAME.
2791
2792 2010-04-26  Richard Guenther  <rguenther@suse.de>
2793
2794         PR lto/42425
2795         * tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
2796         if emitting debug information and it is either a function
2797         or a namespace decl.
2798
2799 2010-04-26  Ira Rosen  <irar@il.ibm.com>
2800
2801         * tree-vectorizer.h (struct _stmt_vec_info): Add new field to
2802         determine if the statement is vectorizable, and a macro to access it.
2803         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
2804         Skip statements that can't be vectorized. If the analysis fails,
2805         mark the statement as unvectorizable if vectorizing basic block.
2806         (vect_compute_data_refs_alignment): Likewise.
2807         (vect_verify_datarefs_alignment): Skip statements marked as
2808         unvectorizable. Add print.
2809         (vect_analyze_group_access): Skip statements that can't be
2810         vectorized. If the analysis fails, mark the statement as
2811         unvectorizable if vectorizing basic block.
2812         (vect_analyze_data_ref_accesses, vect_analyze_data_refs): Likewise.
2813         * tree-vect-stmts.c (vectorizable_store): Fix the number of
2814         generated stmts for SLP.
2815         (new_stmt_vec_info): Initialize the new field.
2816         * tree-vect-slp.c (vect_build_slp_tree): Fail to vectorize
2817         statements marked as unvectorizable.
2818
2819 2010-04-25  Joseph Myers  <joseph@codesourcery.com>
2820
2821         * c-common.c (flag_isoc1x): New.
2822         (flag_isoc99): Update comment.
2823         * c-common.h (flag_isoc1x): New.
2824         (flag_isoc99): Update comment.
2825         * c-cppbuiltin.c (builtin_define_float_constants): Also define
2826         __<type>_DECIMAL_DIG__.
2827         * c-opts.c (set_std_c1x): New.
2828         (c_common_handle_option): Handle -std=c1x and -std=gnu1x.
2829         (set_std_c89, set_std_c99): Also set flag_isoc1x to 0.
2830         * c.opt (-std=c1x, -std=gnu1x): New options.
2831         * doc/cpp.texi: Mention -std=c1x.
2832         * doc/cppopts.texi (-std=c1x, -std=gnu1x): Document.
2833         * doc/extend.texi: Mention -std=c1x and -std=gnu1x.
2834         * doc/invoke.texi (-std=c1x, -std=gnu1x): Document.
2835         * doc/standards.texi: Mention C1X.
2836         * ginclude/float.h (FLT_DECIMAL_DIG, DBL_DECIMAL_DIG,
2837         LDBL_DECIMAL_DIG, FLT_HAS_SUBNORM, DBL_HAS_SUBNORM,
2838         LDBL_HAS_SUBNORM, FLT_TRUE_MIN, DBL_TRUE_MIN, LDBL_TRUE_MIN):
2839         Define for C1X.
2840
2841 2010-04-25  Uros Bizjak  <ubizjak@gmail.com>
2842
2843         * config/i386/gmon-sol2.c (_mcleanup): Change format string
2844         placeholder from 0x%x to %#x.
2845         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
2846         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
2847         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
2848         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
2849         * config/i386/i386.c (ix86_target_string): Ditto.
2850         (output_pic_addr_const): Ditto.
2851         (print_operand): Ditto.
2852
2853 2010-04-25  Paolo Bonzini  <bonzini@gnu.org>
2854
2855         * combine.c (find_split_point): Add third argument.  Use it
2856         to find nested multiply-accumulate instructions.  Adjust calls.
2857         (try_combine): Adjust call to find_split_point.
2858
2859 2010-04-24  Gerald Pfeifer  <gerald@pfeifer.com>
2860
2861         * doc/contrib.texi (Contributors): Add Dodji Seketeli.
2862
2863 2010-04-24  Bernd Schmidt  <bernds@codesourcery.com>
2864
2865         PR tree-optimization/41442
2866         * fold-const.c (merge_truthop_with_opposite_arm): New function.
2867         (fold_binary_loc): Call it.
2868
2869 2010-04-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2870
2871         * toplev.c (general_init): Set default for fdiagnostics-show-option.
2872         * opts.c (common_handle_option): Allow disabling it.
2873         * common.opt (fdiagnostics-show-option): Add Var. Enabled by default.
2874
2875 2010-04-23  Eric Botcazou  <ebotcazou@adacore.com>
2876
2877         * expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: Only use conversion
2878         between modes if both types are integral.
2879
2880 2010-04-23  Richard Guenther  <rguenther@suse.de>
2881
2882         PR tree-optimization/43572
2883         * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.
2884
2885 2010-04-23  Richard Guenther  <rguenther@suse.de>
2886
2887         PR lto/43455
2888         * tree-inline.c (tree_can_inline_p): Also check compatibility
2889         of return types.
2890
2891 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2892
2893         PR tree-optimization/43846
2894         * tree-sra.c (struct access): New flag grp_assignment_read.
2895         (build_accesses_from_assign): Set grp_assignment_read.
2896         (sort_and_splice_var_accesses): Propagate grp_assignment_read.
2897         (enum mark_read_status): New type.
2898         (analyze_access_subtree): Propagate grp_assignment_read, create
2899         accesses also if both direct_read and root->grp_assignment_read.
2900
2901 2010-04-23  Martin Jambor  <mjambor@suse.cz>
2902
2903         PR middle-end/43835
2904         * tree-sra.c (ipa_sra_preliminary_function_checks): Check that the
2905         function does not have type attributes.
2906
2907 2010-04-23  Richard Guenther  <rguenther@suse.de>
2908
2909         PR lto/42653
2910         * tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
2911         of FUNCTION_DECLs.
2912
2913 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2914
2915         * sese.h (create_if_region_on_edge): Remove.
2916
2917         * sese.c (create_if_region_on_edge): Make static.
2918
2919         * tree-inline.c: Do not include ggc.h.
2920
2921         * expr.c: Do not include ggc.h.
2922
2923         * Makefile.in (tree-inline.o, expr.o): Remove $(GGC_H) from
2924         dependencies.
2925
2926 2010-04-22  Kaz Kojima  <kkojima@gcc.gnu.org>
2927
2928         PR target/43744
2929         * config/sh/sh.c (find_barrier): Don't emit a constant pool
2930         in the middle of insns for casesi_worker_2.
2931
2932 2010-04-22  David Edelsohn  <edelsohn@gnu.org>
2933
2934         * config/rs6000/x-aix: Override LDFLAGS for all COMPILERS.
2935
2936 2010-04-22  Ira Rosen  <irar@il.ibm.com>
2937
2938         PR tree-optimization/43842
2939         * tree-vect-loop.c (vect_create_epilog_for_reduction): Handle
2940         loop unrolling in update of exit phis. Fix comment.
2941         * tree-vect-slp.c (vect_analyze_slp): Check that there are at
2942         least two reduction statements in the loop before starting SLP
2943         analysis.
2944
2945 2010-04-22  Nick Clifton  <nickc@redhat.com>
2946
2947         * config/stormy16/stormy16-lib2.c (__ucmpsi2): Fix thinko.
2948
2949 2010-04-22  Alexander Monakov  <amonakov@ispras.ru>
2950
2951         * tree-ssa-reassoc.c (eliminate_plus_minus_pair): Handle BIT_NOT_EXPR
2952         to simplify a + ~a.
2953
2954 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
2955
2956         * tree-parloops.c (loop_parallel_p): New argument
2957         parloop_obstack.  Pass it down.
2958         (parallelize_loops): New variable parloop_obstack.  Initialize it,
2959         pass it down, free it.
2960
2961         * tree-loop-linear.c (linear_transform_loops): Pass down
2962         lambda_obstack.
2963
2964         * tree-data-ref.h (lambda_compute_access_matrices): New argument
2965         of type struct obstack *.
2966
2967         * tree-data-ref.c (analyze_subscript_affine_affine): New variable
2968         scratch_obstack.  Initialize it, pass down, free it.
2969
2970         * lambda.h (lambda_loop_new): Remove.
2971         (lambda_matrix_new, lambda_matrix_inverse)
2972         (lambda_trans_matrix_new, lambda_trans_matrix_inverse): New
2973         argument of type struct obstack *.
2974
2975         * lambda-trans.c (lambda_trans_matrix_new): New argument
2976         lambda_obstack.  Pass it down, use obstack allocation for ret.
2977         (lambda_trans_matrix_inverse): New argument lambda_obstack.  Pass
2978         it down.
2979
2980         * lambda-mat.c (lambda_matrix_get_column)
2981         (lambda_matrix_project_to_null): Remove.
2982         (lambda_matrix_new): New argument lambda_obstack.  Use obstack
2983         allocation for mat.
2984         (lambda_matrix_inverse_hard, lambda_matrix_inverse): New argument
2985         lambda_obstack.
2986
2987         * lambda-code.c (lambda_loop_new): New function.
2988         (lambda_lattice_new, compute_nest_using_fourier_motzkin)
2989         (lambda_compute_auxillary_space, lambda_compute_target_space)
2990         (lambda_loopnest_transform, gcc_loop_to_lambda_loop)
2991         (lambda_loopnest_to_gcc_loopnest): Pass down lambda_obstack.
2992         (build_access_matrix): New argument lambda_obstack.  Use obstack
2993         allocation for am.
2994         (lambda_compute_step_signs, lambda_compute_access_matrices): New
2995         argument lambda_obstack.  Pass it down.
2996
2997 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
2998
2999         * optabs.h (expand_widening_mult): Declare.
3000
3001 2010-04-22  Richard Guenther  <rguenther@suse.de>
3002
3003         PR tree-optimization/43845
3004         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Properly
3005         lookup the CALL_EXPR function and arguments.
3006
3007 2010-04-22  Nick Clifton  <nickc@redhat.com>
3008
3009         * config/stormy16/stormy16.c
3010         (xstormy16_asm_output_aligned_common): Handle a NULL decl parameter.
3011         * config/stormy16/stormy16.h: Tidy up formatting.
3012         (DONT_USE_BUILTIN_SETJMP): Remove definition.
3013         * config/stormy16/stormy16.c (cbranchsi4): Delete pattern.
3014         (ineqbranchsi): Delete pattern.
3015         * config/stormy16/stormy16-lib2-ucmpsi2.c: New file.
3016         * config/stormy16/stormy16-lib2.c (__ucmpsi2): New function.
3017         * config/stormy16/t-stormy16 (LIB2FUNCS_EXTRA): Add
3018         stormy16-lib2-ucmpsi2.c.
3019
3020 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
3021
3022         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and
3023         df_simulate_find_noclobber_defs as appropriate.  Keep track of an
3024         extra set merge_set_noclobber, and use it to relax the final test
3025         slightly.
3026         * df.h (df_simulate_find_noclobber_defs): Declare.
3027         * df-problems.c (df_simulate_find_defs): Don't ignore partial or
3028         conditional defs.
3029         (df_simulate_find_noclobber_defs): New function.
3030
3031 2010-04-22  Uros Bizjak  <ubizjak@gmail.com>
3032
3033         * config/i386/i386.md: Use {} around multi-line preparation statements.
3034
3035 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
3036
3037         * c-tree.h (push_init_level, pop_init_level, set_init_index)
3038         (process_init_element): New argument of type struct obstack *.
3039
3040         * c-typeck.c (push_init_level, pop_init_level, set_designator)
3041         (set_init_index, set_init_label, set_nonincremental_init)
3042         (set_nonincremental_init_from_string, find_init_member)
3043         (output_init_element, output_pending_init_elements)
3044         (process_init_element): New argument braced_init_obstack.  Pass it
3045         down.
3046         (push_range_stack, add_pending_init): New argument
3047         braced_init_obstack.  Use obstack allocation.
3048
3049         * c-parser.c (c_parser_initelt, c_parser_initval): New argument
3050         braced_init_obstack.  Pass it down.
3051         (c_parser_braced_init): New variables ret, braced_init_obstack.
3052         Initialize obstack, pass it down and finally free it.
3053
3054 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
3055
3056         PR middle-end/29274
3057         * tree-pass.h (pass_optimize_widening_mul): Declare.
3058         * tree-ssa-math-opts.c (execute_optimize_widening_mul,
3059         gate_optimize_widening_mul): New static functions.
3060         (pass_optimize_widening_mul): New.
3061         * expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: New case.
3062         <case MULT_EXPR>: Remove support for widening multiplies.
3063         * tree.def (WIDEN_MULT_EXPR): Tweak comment.
3064         * cfgexpand.c (expand_debug_expr) <case WIDEN_MULT_EXPR>: Use
3065         simplify_gen_unary rather than directly building extensions.
3066         * tree-cfg.c (verify_gimple_assign_binary): Add tests for
3067         WIDEN_MULT_EXPR.
3068         * expmed.c (expand_widening_mult): New function.
3069         * passes.c (init_optimization_passes): Add pass_optimize_widening_mul.
3070
3071 2010-04-21  Jan Hubicka  <jh@suse.cz>
3072
3073         * timevar.def (TV_WHOPR_WPA_FIXUP): Remove.
3074         * lto-section-in.c (lto_section_name): Remove wpa_fixup.
3075         * lto-wpa-fixup.c: Remove.
3076         * Makefile.in (lto-wpa-fixup.o): Remove.
3077         * passes.c (init_optimization_passes): Remove pass_ipa_lto_wpa_fixup.
3078         (execute_all_ipa_transforms): Set cgraph_state to CGRAPH_STATE_IPA_SSA.
3079         * lto-streamer.c (lto_get_section_name): Remove wpa_fixup section.
3080
3081 2010-04-21  Jan Hubicka  <jh@suse.cz>
3082
3083         * tree-pass.h (ipa_opt_pass_d): Rename function_read_summary;
3084         add write_optimization_summary, read_optimization_summary.
3085         (ipa_write_summaries_of_cgraph_node_set): Remove.
3086         (ipa_write_optimization_summaries): Declare.
3087         (ipa_read_optimization_summaries): Declare.
3088         * ipa-cp.c (pass_ipa_cp): Update.
3089         * ipa-reference.c (pass_ipa_reference): Update.
3090         * ipa-pure-const.c (pass_ipa_pure_const): Update.
3091         * lto-streamer-out.c (pass_ipa_lto_gimple, pass_ipa_lto_finish):
3092         Update.
3093         * ipa-inline.c (pass_ipa_inline): Update.
3094         * ipa.c (pass_ipa_whole_program): Update.
3095         * lto-wpa-fixup.c (pass_ipa_lto_wpa_fixup): Update.
3096         * passes.c (ipa_write_summaries_1): Do not test wpa.
3097         (ipa_write_optimization_summaries_1): New.
3098         (ipa_write_optimization_summaries): New.
3099         (ipa_read_summaries): Do not test ltrans.
3100         (ipa_read_optimization_summaries_1): New.
3101         (ipa_read_optimization_summaries): New.
3102
3103 2010-04-21  Jan Hubicka  <jh@suse.cz>
3104
3105         * lto-cgraph.c (lto_output_node): Do not output comdat groups
3106         for boundary nodes.
3107         (output_cgraph): Do not arrange comdat groups for boundary nodes.
3108
3109 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
3110
3111         PR debug/40040
3112         * dwarf2out.c (add_name_and_src_coords_attributes): Add
3113         DW_AT_{,MIPS_}linkage_name even for Fortran decls.
3114
3115 2010-04-21  Jan Hubicka  <jh@suse.cz>
3116
3117         * ipa-prop.c (ipa_edge_removal_hook): Check for bounds.
3118
3119 2010-04-21  Jan Hubicka  <jh@suse.cz>
3120
3121         * varpool.c (decide_is_variable_needed): Variable is always needed
3122         during ltrans.
3123
3124 2010-04-21  Jan Hubicka  <jh@suse.cz>
3125
3126         * opts.c (decode_options): Enable pure-const pass for whopr.
3127
3128 2010-04-21  Jan Hubicka  <jh@suse.cz>
3129
3130         * cgraph.c (dump_cgraph_node): Dump also assembler name.
3131         * ipa-inline.c (cgraph_decide_inlining_of_small_functions): Do not ice
3132         at WPA dumping.
3133         (cgraph_decide_inlining): Do not expect callee to be removed in all
3134         cases.
3135
3136 2010-04-21  Eric B. Weddington  <eric.weddington@atmel.com>
3137
3138         * config/avr/avr-devices.c (avr_mcu_types): Add missing comma.
3139
3140 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
3141
3142         * config/i386/i386.md (x86_shrd): Add athlon_decode and
3143         amdfam10_decode attributes.
3144
3145 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
3146
3147         PR middle-end/43570
3148         * omp-low.c (scan_sharing_clauses): Don't scan_omp_op
3149         OMP_CLAUSE_DECL for OMP_CLAUSE_COPYPRIVATE.
3150         (lower_copyprivate_clauses): Use private var in outer
3151         context instead of original var.  Make sure the types
3152         are correct for VLAs.
3153
3154 2010-04-21  Richard Guenther  <rguenther@suse.de>
3155
3156         * tree-ssa-structalias.c (do_ds_constraint): Avoid escaping
3157         to non-pointer objects.
3158
3159 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
3160
3161         * dwarf2out.c (add_var_loc_to_decl): Add LABEL argument.  Drop
3162         last chain entry if it starts with the still current label.
3163         (add_location_or_const_value_attribute): Check that
3164         loc_list->first->next is NULL instead of comparing ->first with ->last.
3165         (dwarf2out_var_location): Pass last_label resp. last_postcall_label
3166         to add_var_loc_to_decl.
3167
3168         * dwarf2out.c (output_call_frame_info): For dw_cie_version
3169         >= 4 add also address size and segment size fields into CIE header.
3170
3171         * unwind-dw2.c (extract_cie_info): Handle CIE version 4, as
3172         long as address size is the same as sizeof (void *) and
3173         segment size is 0.
3174         * unwind-dw2-fde.c (get_cie_encoding): Likewise.  If
3175         address size or segment size is unexpected, return DW_EH_PE_omit.
3176         (classify_object_over_fdes): If get_cie_encoding returned
3177         DW_EH_PE_omit, return -1.
3178         (init_object): If classify_object_over_fdes returned -1,
3179         pretend there were no FDEs at all.
3180
3181 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
3182
3183         * config/i386/i386.md (bswap<mode>2): Macroize expander from
3184         bswap{si,di}2 using SWI48 mode iterator.
3185         (*bswap<mode>2_movbe): Macroize insn from *bswap{si,di}_movbe using
3186         SWI48 mode iterator.  Set type attribute of bswap insn to bitmanip,
3187         set modrm attribute of bswap insn to 0 and remove length attribute.
3188         (*bswap<mode>2_1): Macroize insn from *bswap{si,di}_1 using SWI48 mode
3189         iterator.  Set type attribute to bitmanip, set modrm attribute to 0,
3190         set mode attribute to <MODE> and remove length attribute.
3191
3192 2010-04-20  James E. Wilson  <wilson@codesourcery.com>
3193
3194         PR rtl-optimization/43520
3195         * ira-lives.c (ira_implicitly_set_insn_hard_regs): Exclude classes with
3196         zero available registers.
3197
3198 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3199
3200         * builtins.c (fold_builtin_cproj): Fold more cases.
3201
3202 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3203
3204         * builtins.c (build_complex_cproj, fold_builtin_cproj): New.
3205         (fold_builtin_1): Fold builtin cproj.
3206         * builtins.def (BUILT_IN_CPROJ, BUILT_IN_CPROJF, BUILT_IN_CPROJL):
3207         Use ATTR_CONST_NOTHROW_LIST.
3208
3209 2010-04-20  Uros Bizjak  <ubizjak@gmail.com>
3210
3211         * config/i386/i386.md (ffs<mode>2): Macroize expander from ffs_cmove
3212         and ffsdi2 using SWI48 mode iterator.  Expand SImode insn through
3213         ffsi2_no_cmove for !TARGET_CMOVE.
3214         (ffssi2_no_cmove): Rename from *ffs_no_cmove.  Make public.
3215         (ffssi2): Remove expander.
3216         (*ffs<mode>_1): Macroize insn from *ffs{si,di} using SWI48
3217         mode iterator.
3218         (ctz<mode>2): Ditto from ctz{si,di}2.
3219         (clz<mode>2): Macroize expander from ctz{hi,si,di}2 using SWI248
3220         mode iterator.
3221         (clz<mode>2_abm): Macroize insn from clz{hi,si,di}2_abm using SWI248
3222         mode iterator.
3223
3224 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
3225
3226         * dwarf2out.c (AT_linkage_name): Define.
3227         (clone_as_declaration): Handle DW_AT_linkage_name.
3228         (add_name_and_src_coords_attributes): Use AT_linkage_name instead
3229         of DW_AT_MIPS_linkage_name.
3230         (move_linkage_attr): Likewise.
3231         (dwarf2out_finish): Likewise.
3232
3233 2010-04-20  Xinliang David Li  <davidxl@gcc.gnu.org>
3234
3235         PR middle-end/41952
3236         * fold-const.c (fold_comparison): New folding rule.
3237
3238 2010-04-20  Anatoly Sokolov  <aesok@post.ru>
3239
3240         * double-int.h (double_int_setbit): Declare.
3241         * double-int.c (double_int_setbit): New function.
3242         * rtl.h (immed_double_int_const): Declare.
3243         * emit-rtl.c (immed_double_int_const): New function.
3244         * builtins.c (expand_builtin_signbit): Clean up, use double_int_*
3245         and immed_double_int_const functions.
3246         * optabs.c (expand_absneg_bit, expand_copysign_absneg,
3247         expand_copysign_bit):  (Ditto.).
3248         * simplify-rtx.c (simplify_binary_operation_1): (Ditto.).
3249         * tree-ssa-address.c (addr_for_mem_ref): (Ditto.).
3250         * dojump.c (prefer_and_bit_test): (Ditto.).
3251         * expr.c (convert_modes, reduce_to_bit_field_precision,
3252         const_vector_from_tree): (Ditto.).
3253         * expmed.c (mask_rtx, lshift_value): (Ditto.).
3254
3255 2010-04-20  Jan Hubicka  <jh@suse.cz>
3256
3257         * cgraph.c (cgraph_remove_node): Kill bodies in other partitoin.
3258         (dump_cgraph_node): Dump new flags.
3259         * cgraph.h (struct cgraph_node): Add flags
3260         reachable_from_other_partition and in_other_partition.
3261         (cgraph_can_remove_if_no_direct_calls_p): Functions used by
3262         other partition can not be removed.
3263         * cgraphunit.c (cgraph_mark_functions_to_output): Functions used by
3264         the other partition must be output; silence sanity checking on
3265         leaking functions bodies from other paritition.
3266         * lto-cgraph.c (reachable_from_other_partition_p): New function.
3267         (lto_output_node): Output new flags; do not sanity check that inline
3268         clones are output; drop lto_forced_extern_inline_p code; do not mock
3269         visibility flags at partition boundaries.
3270         (add_node_to): New function.
3271         (output_cgraph): Use it to sort functions so masters appear before
3272         clones.
3273         (input_overwrite_node): Input new flags.
3274         * passes.c (ipa_write_summaries): Do not call
3275         lto_new_extern_inline_states.
3276         * lto-section-out.c (forced_extern_inline,
3277         lto_new_extern_inline_states lto_delete_extern_inline_states,
3278         lto_force_functions_extern_inline, lto_forced_extern_inline_p): Kill.
3279         * lto-streamer.h (lto_new_extern_inline_states,
3280         * lto_delete_extern_inline_states, lto_force_functions_extern_inline,
3281         lto_forced_extern_inline_p): Kill.
3282
3283 2010-04-20  Richard Guenther  <rguenther@suse.de>
3284
3285         * tree-ssa-structalias.c (do_sd_constraint): Add edges only
3286         from vars that can have pointers.
3287         (process_constraint): Dump useless constraints.
3288
3289 2010-04-20  Richard Guenther  <rguenther@suse.de>
3290
3291         * tree-ssa-structalias.c (do_structure_copy): Properly handle DEREF.
3292         (dump_sa_points_to_info): Remove asserts.
3293         (init_base_vars): nothing_id isn't an escape point nor does it
3294         have pointers.
3295
3296 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
3297
3298         * tree.h (TYPE_REF_IS_RVALUE): Define.
3299         * dwarf2out.c (attr_checksum_ordered, is_type_die, is_comdat_die,
3300         should_move_die_to_comdat, prune_unused_types_walk): Handle
3301         DW_TAG_rvalue_reference_type like DW_TAG_reference_type.
3302         (modified_type_die, gen_reference_type_die): Emit
3303         DW_TAG_rvalue_reference_type instead of DW_TAG_reference_type
3304         if TYPE_REF_IS_RVALUE and -gdwarf-4.
3305
3306 2010-04-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3307
3308         PR target/43635
3309         * config/s390/s390.c (s390_emit_call): Turn direct into indirect
3310         calls for -fpic -m31 if they have been sibcall optimized.
3311
3312 2010-04-19  James E. Wilson  <wilson@codesourcery.com>
3313
3314         * config/ia64/ia64.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Make
3315         ar.lc fixed and call-used.
3316
3317         * config/ia64/ia64.c (TARGET_INVALID_WITHIN_DOLOOP): Define.
3318
3319 2010-04-19  Jan Hubicka  <jh@suse.cz>
3320
3321         * opts.c (decode_options): Disable whpr incompatible passes.
3322         * lto/lto.c (lto_1_to_1_map): Skip clones.
3323         (read_cgraph_and_symbols): Do not mark everything as needed.
3324         (do_whole_program_analysis): Do map only after optimizing;
3325         set proper cgraph_state; use passmanager.
3326
3327 2010-04-19  DJ Delorie  <dj@redhat.com>
3328
3329         * cfgexpand.c (expand_debug_expr): Check for mismatched modes in
3330         POINTER_PLUS_EXPR and fix them.
3331
3332 2010-04-19  Eric B. Weddington  <eric.weddington@atmel.com>
3333
3334         * config/avr/avr-devices.c (avr_mcu_types): Add support for new
3335         devices atmega644pa, attiny2313a, attiny24a, attiny261a, attiny4313,
3336         attiny44a, attiny861a, atmega16a, atmega168a, atmega164a, atmega165a,
3337         atmega169a, atmega169pa, atmega16hva2, atmega324a, atmega324pa,
3338         atmega325a, atmega3250a, atmega328, atmega329a, atmega329pa,
3339         atmega3290a, atmega48a, atmega644a, atmega645a, atmega645p,
3340         atmega6450a, atmega6450p, atmega649a, atmega649p, atmega6490a,
3341         atmega6490p, atmega64hve, atmega88a, atmega88pa, attiny461a, attiny84a,
3342         m3000. Remove support for devices atmega8m1, atmega8c1, atmega16c1,
3343         atmega4hvd, atmega8hvd, attiny327, m3000f, m3000s, m3001b.
3344         * config/avr/t-avr.c (MULTILIB_MATCHES): Same.
3345
3346 2010-04-19  Eric Botcazou  <ebotcazou@adacore.com>
3347
3348         * ifcvt.c (noce_try_cmove_arith): Fix long lines.
3349         (check_cond_move_block): Likewise.
3350         (cond_move_process_if_block): Likewise.
3351         (noce_find_if_block): Improve formatting.
3352         (find_if_header): Pass 0 to memset and tweak conditions.
3353         (cond_exec_find_if_block): Fix long lines and tweak conditions.
3354
3355 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
3356
3357         * dwarf2out.c (lower_bound_default): For DW_LANG_Python return 0
3358         for -gdwarf-4.
3359
3360         PR middle-end/43337
3361         * tree-nested.c (convert_nonlocal_omp_clauses): OMP_CLAUSE_PRIVATE
3362         with non-local decl doesn't need chain.
3363
3364 2010-04-19  Vladimir Makarov  <vmakarov@redhat.com>
3365
3366         * ira-color.c (allocno_reload_assign): Avoid accumulating
3367         reload registers in ALLOCNO_TOTAL_CONFLICT_HARD_REGS.
3368
3369 2010-04-19  Martin Jambor  <mjambor@suse.cz>
3370
3371         * gimple.h (create_tmp_reg): Declare.
3372         * gimplify.c (create_tmp_reg): New function.
3373         (gimplify_return_expr): Use create_tmp_reg.
3374         (gimplify_omp_atomic): Likewise.
3375         (gimple_regimplify_operands): Likewise.
3376         * tree-dfa.c (make_rename_temp): Likewise.
3377         * tree-predcom.c (predcom_tmp_var): Likewise.
3378         (reassociate_to_the_same_stmt): Likewise.
3379         * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
3380         (get_replaced_param_substitute): Likewise.
3381         * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
3382         * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
3383         * tree-ssa-pre.c (get_representative_for): Likewise.
3384         (create_expression_by_pieces): Likewise.
3385         * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
3386         (create_tailcall_accumulator): Likewise.
3387
3388 2010-04-19  Martin Jambor  <mjambor@suse.cz>
3389
3390         * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
3391         new_stmt.
3392         (cgraph_materialize_all_clones): Assert !need_ssa_update_p.
3393
3394 2010-04-19  Richard Guenther  <rguenther@suse.de>
3395
3396         PR tree-optimization/43796
3397         * tree-vrp.c (adjust_range_with_scev): Lookup init and step
3398         from SCEV in the lattice.
3399         (vrp_visit_phi_node): Dump change.
3400
3401 2010-04-19  Richard Guenther  <rguenther@suse.de>
3402
3403         * configure.ac: Fix quoting around elf_getshstrndx ABI check.
3404         * configure: Re-generated.
3405
3406 2010-04-19  Richard Guenther  <rguenther@suse.de>
3407
3408         PR tree-optimization/43783
3409         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
3410         constant ARRAY_REF operands two and three if possible.
3411
3412 2010-04-19  Uros Bizjak  <ubizjak@gmail.com>
3413
3414         PR target/43766
3415         * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.
3416
3417 2010-04-19  Jie Zhang  <jie@codesourcery.com>
3418
3419         PR target/43662
3420         * reginfo.c (reinit_regs): Set caller_save_initialized_p to false.
3421
3422 2010-04-19  Ira Rosen  <irar@il.ibm.com>
3423
3424         PR tree-optimization/37027
3425         * tree-vectorizer.h (struct _loop_vec_info): Add new field reductions
3426         and macro to access it.