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1 2010-05-06  Jason Merrill  <jason@redhat.com>
2
3         * gimplify.c (gimplify_modify_expr_rhs): Don't return GS_OK for
4         stripping WITH_SIZE_EXPR.
5         (gimplify_expr) [MODIFY_EXPR]: Trust GS_OK even if the rhs didn't
6         change.
7
8 2010-05-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
9
10         * config.gcc: Removed mips-sgi-irix5*, mips-sgi-irix6.[0-4]* from
11         list of obsolete configurations.
12         Disabled check for obsolete configurations.
13         (mips-sgi-irix[56]*): Restrict to mips-sgi-irix6.5*.
14         Removed support for previous versions.
15         * config/mips/iris.h: Removed.
16         * config/mips/iris5.h: Removed.
17         * config/mips/iris6.h: Merged old iris.h contents.
18         (TARGET_IRIX): Removed.
19         (DRIVER_SELF_SPECS): Removed mabi=32.
20         (IDENT_ASM_OP): Removed undef.
21         (STARTFILE_SPEC): Removed mabi=32.
22         (ENDFILE_SPEC): Likewise.
23         (IRIX_SUBTARGET_LINK_SPEC): Likewise.
24         (MACHINE_TYPE): Update for IRIX 6.5.
25         * config/mips/mips.c (mips_build_builtin_va_list): Replaced
26         TARGET_IRIX by TARGET_IRIX6.
27         (mips_file_start): Likewise.
28         (mips_output_external): Remove IRIX 5/6 O32 support.
29         (mips_output_function_prologue): Likewise.
30         * config/mips/mips.h (TARGET_GPWORD): Replaced TARGET_IRIX by
31         TARGET_IRIX6.
32         (TARGET_CPU_CPP_BUILTINS): Likewise.
33         (TARGET_IRIX): Removed.
34         * config/mips/t-iris6 (MULTILIB_OPTIONS): Removed mabi=32.
35         (MULTILIB_DIRNAMES): Removed 32.
36         (MULTILIB_OSDIRNAMES): Removed ../lib.
37         * doc/install.texi (Prerequisites): Don't reference IRIX before
38         6.5.
39         (Specific, mips-sgi-irix5): Document removal.
40         (Specific, mips-sgi-irix6): Document IRIX 6.[0-4] and O32 ABI
41         removal.
42         Remove references to older IRIX 6 releases and the O32 ABI.
43
44 2010-05-06  Jakub Jelinek  <jakub@redhat.com>
45
46         * gcc.dg/Wunused-var-8.c: Move to...
47         * c-c++-common/Wunused-var-6.c: ... here.  New test.
48
49         PR bootstrap/43994
50         * df-problems.c (dead_debug_insert_before): Use *DF_REF_REAL_LOC
51         instead of DF_REF_REAL_REG.
52
53 2010-05-06  Dave Korn  <dave.korn.cygwin@gmail.com>
54
55         PR target/43888
56         * config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
57         handling to still return true for x64 targets.
58
59 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
60
61         * config/m68k/uclinux.h (LIB_SPEC): Bring in sync with config/linux.h.
62
63 2010-05-06  Jan Hubicka  <jh@suse.cz>
64
65         PR tree-optimization/43791
66         * ipa-inline.c (update_caller_keys): Remove bogus
67         disregard_inline_limits check.
68
69 2010-05-06  Michael Matz  <matz@suse.de>
70
71         PR tree-optimization/43984
72         * tree-ssa-pre.c (inserted_phi_names): Remove.
73         (inserted_exprs): Change to bitmap.
74         (create_expression_by_pieces): Set bits, don't append to vector.
75         (insert_into_preds_of_block): Don't handle inserted_phi_names.
76         (eliminate): Don't look at inserted_phi_names, remove deleted
77         insns from inserted_exprs.
78         (remove_dead_inserted_code): Adjust to use bitmaps instead of
79         vectors.
80         (init_pre, fini_pre): Allocate and free bitmaps.
81         (execute_pre): Insert insns on edges before elimination.
82
83 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
84
85         * tree.c (initializer_zerop): Handle STRING_CST.
86
87 2010-05-06  Manuel López-Ibáñez  <manu@gcc.gnu.org>
88
89         PR 40989
90         * doc/invoke.texi (Wimplicit): Document as C only.
91         * opts.c (common_handle_option): Add argument kind.
92         (handle_option): Rename as read_cmdline_option. Factor out code to...
93         (handle_option): ... here. New.
94         (handle_options): Rename as read_cmdline_options.
95         (decode_options): Update call.
96         (set_option): Use option index instead of option pointer. Classify
97         diagnostics correctly.
98         (enable_warning_as_error): Call handle_option.
99         * opts.h (set_option): Update declaration.
100         (handle_option): Declare.
101         * langhooks.h (struct lang_hooks): Add argument kind to
102         handle_option.
103         * c.opt (Wimplicit,Wimplicit-int): Initialize to -1.
104         * c-opts.c (set_Wimplicit): Delete.
105         (c_family_lang_mask): New static constant.
106         (c_common_handle_option): Add argument kind. Use handle_option
107         instead of set_Wimplicit.
108         (c_common_post_options): warn_implicit and warn_implicit_int
109         are disabled by default.
110         * c-common.c (warn_implicit): Do not define here.
111         * c-common.h (warn_implicit): Do not declare here.
112         (c_common_handle_option): Update declaration.
113         * lto-opts.c (lto_reissue_options): Update call to set_option.
114
115 2010-05-06  Richard Guenther  <rguenther@suse.de>
116
117         PR tree-optimization/43571
118         * domwalk.c (walk_dominator_tree): Walk the dominator
119         sons in more optimal order.
120
121 2010-05-06  Richard Guenther  <rguenther@suse.de>
122
123         PR tree-optimization/43934
124         * tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
125         (stmt_cost): Likewise.
126         (extract_true_false_args_from_phi): New helper.
127         (determine_max_movement): For PHI nodes verify we can hoist them
128         and compute their cost.
129         (determine_invariantness_stmt): Handle PHI nodes.
130         (move_computations_stmt): Likewise.  Hoist PHI nodes in
131         if-converted form using COND_EXPRs.
132         (move_computations): Return TODO_cleanup_cfg if we hoisted PHI
133         nodes.
134         (tree_ssa_lim): Likewise.
135         * tree-flow.h (tree_ssa_lim): Adjust prototype.
136         * tree-ssa-loop.c (tree_ssa_loop_im): Return todo.
137
138 2010-05-06  Richard Guenther  <rguenther@suse.de>
139
140         PR tree-optimization/43987
141         * tree-ssa-structalias.c (could_have_pointers): For possibly
142         address-taken variables force pointers to be recorded.
143         (create_variable_info_for_1): Likewise.
144         (push_fields_onto_fieldstack): Pass in wheter all fields
145         must have pointers.
146         (find_func_aliases): Query types instead of vars whether
147         they contain pointers where appropriate.
148
149 2010-05-06  Jan Hubicka  <jh@suse.cz>
150
151         * cgraphbuild.c (record_reference_ctx): Add varpool_node.
152         (record_reference, mark_address, mark_load, mark_store): Record
153         references.
154         (record_references_in_initializer): Update call of record_references.
155         (rebuild_cgraph_edges): Remove all references before rebuiding.
156         * cgraph.c (cgraph_create_node): Clear ref list.
157         (cgraph_remove_node): Remove references.
158         (dump_cgraph_node): Dump references.
159         (cgraph_clone_node): Clone references.
160         * cgraph.h: Include ipa-ref.h and ipa-ref-inline.h
161         (struct cgraph_node, varpool_node): Add ref_lst.
162         * ipa-ref.c: New file.
163         * ipa-ref.h: New file.
164         * ipa-ref-inline.h: New file.
165         * lto-cgraph.c (output_varpool): Take cgrag node set argument.
166         (referenced_from_other_partition_p): New function.
167         (lto_output_varpool_node): Take set arugment; call
168         referenced_from_other_partition.
169         (lto_output_ref): New.
170         (add_references): New.
171         (output_refs): New.
172         (output_cgraph): Compute boundary based on references;
173         output refs.
174         (output_varpool): Accept cgraph_node_set argument.
175         (input_ref): New.
176         (input_refs): New.
177         (input_cgraph): Call input_refs.
178         * lto-section-in.c (lto_section_name): Add refs.
179         * Makefile.in: (cgraph.h): Include ipa-ref.h and ipa-ref-inline.h
180         (ipa-ref.o): New file.
181         * varpool.c (varpool_node): Clear ipa ref list.
182         (varpool_remove_node): Remove references.
183         (dump_varpool_node): Dump references.
184         (varpool_assemble_decl): Only compile finalized ones.
185         (varpool_extra_name_alias): Initialize ref list.
186         * lto-streamer.c (lto-get_section_name): Add .refs section.
187         * lto-streamer.h (lto_section_type): Add LTO_section_refs.
188         (referenced_from_other_partition_p): Declared.
189
190 2010-05-06  Ira Rosen  <irar@il.ibm.com>
191
192         PR tree-optimization/43901
193         * tree-vect-stmts.c (vectorizable_call): Assert that vector
194         type is not NULL if it's transformation phase, and return
195         FALSE if it's analysis.
196         (vectorizable_conversion, vectorizable_operation, 
197         vectorizable_type_demotion, vectorizable_type_promotion):
198         Likewise.
199
200 2010-05-05  Andrew Pinski  <andrew.pinski@caviumnetworks.com>
201
202         * config/mips/mips.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
203         Delete.
204         * config/mips/mips.c (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P):
205         New define.
206         * config/mips/mips-protos.h
207         (mips_small_register_classes_for_mode_p): Delete prototype.
208
209 2010-05-06  Bernd Schmidt  <bernds@codesourcery.com>
210
211         * config/arm/arm.h (MAX_LDM_STM_OPS): New macro.
212         * config/arm/arm.c (multiple_operation_profitable_p,
213         compute_offset_order): New static functions.
214         (load_multiple_sequence, store_multiple_sequence): Use them.
215         Replace constant 4 with MAX_LDM_STM_OPS.  Compute order[0] from
216         memory offsets, not register numbers.
217         (emit_ldm_seq, emit_stm_seq): Replace constant 4 with MAX_LDM_STM_OPS.
218
219 2010-05-05  Steven Bosscher  <steven@gcc.gnu.org>
220
221         * stor-layout.c (pending_sizes): Change the type to
222         VEC(tree,gc) *.
223         (get_pending_sizes, put_pending_size, put_pending_sizes):
224         Update the uses of pending_sizes.
225         * c-decl.c (store_parm_decls): Likewise.
226         * c-tree.h (struct c_arg_info): Likewise.
227         * tree.h: Update the prototype for get_pending_sizes and
228         put_pending_sizes.
229
230 2010-05-05  Jason Merrill  <jason@redhat.com>
231
232         PR debug/43370
233         * c-common.c (handle_aligned_attribute): Respect
234         ATTR_FLAG_TYPE_IN_PLACE.
235
236         PR testsuite/43758
237         * target.h (struct gcc_target): Add attribute_takes_identifier_p.
238         * target_def.h (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
239         (TARGET_INITIALIZER): Use it.
240         * c-common.c (attribute_takes_identifier_p): Call it.
241         * c-common.h: Update prototype.
242         * config/rs6000/rs6000.c (rs6000_attribute_takes_identifier_p): New.
243         (TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P): Define.
244
245 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
246
247         PR debug/43950
248         * dwarf2out.c (gen_compile_unit_die): Add DW_AT_identifier_case
249         DW_ID_down_case for Fortran compilation units.
250
251 2010-05-05  Jan Hubicka  <jh@suse.cz>
252
253         * lto-cgraph.c (lto_output_varpool_node, input_varpool_node): Correctly
254         handle aliases.
255
256 2010-05-05  Eric Botcazou  <ebotcazou@adacore.com>
257
258         * gimplify.c (gimplify_return_expr): Gimplify the size expressions of
259         a variable-sized RESULT_DECL.
260
261 2010-05-05  Maxim Kuvyrkov  <maxim@codesourcery.com>
262
263         * doc/invoke.texi (-mfix-cortex-m3-ldrd): Move from ARC section to ARM.
264
265 2010-05-05  Jason Merrill  <jason@redhat.com>
266
267         PR c++/43787
268         * gimplify.c (gimplify_expr): Keep working if gimplify_modify_expr
269         returns GS_OK.
270         (gimplify_modify_expr_rhs): Return GS_OK if anything changed.
271
272 2010-05-05  Alexandre Oliva  <aoliva@redhat.com>
273             Jakub Jelinek  <jakub@redhat.com>
274
275         PR debug/43478
276         * df-problems.c (struct dead_debug_use, struct dead_debug): New.
277         (dead_debug_init, dead_debug_finish): New functions.
278         (dead_debug_add, dead_debug_insert_before): Likewise.
279         (df_note_bb_compute): Initialize a dead_debug object, add dead
280         debug uses to it, insert debug bind insns before death insns,
281         reset debug insns that refer to pending uses at the end.
282         * rtl.h (make_debug_expr_from_rtl): New prototype.
283         * varasm.c (make_debug_expr_from_rtl): New function.
284
285 2010-05-05  Jan Hubicka  <jh@suse.cz>
286
287         * lto-cgraph.c (output_varpool): Forward declare; work on encoder.
288         (lto_varpool_encoder_new, lto_varpool_encoder_delete, lto_varpool_encoder_encode
289         lto_varpool_encoder_lookup, lto_varpool_encoder_deref, lto_varpool_encoder_size,
290         lto_varpool_encoder_encode_initializer_p,
291         lto_set_varpool_encoder_encode_initializer): New functions.
292         (lto_output_cgraph): Take vset parameter too; compute varpool encoder;
293         call output_varpool.
294         (input_varpool_node): Do not always set analyzed.
295         (input_cgraph_1): Return vector of cgraph nodes.
296         (input_varpool_1): Return vector of varpools.
297         (input_cgraph): Free the vectors.
298         * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
299         output only initializers needed.
300         (lto_output): Only call output_cgraph.
301         (produce_asm_for_decls): Call lto_varpool_encoder_delete.
302         * lto-section-out.c (lto_new_out_decl_state): Initialize
303         state->varpool_node_encoder.
304         * lto-streamer.h (lto_varpool_encoder_d): New.
305         (lto_out_decl_state, lto_file_decl_data): Add varpool_node_encoder.     
306         (lto_cgraph_encoder_delete, output_cgraph): Update prototype.
307         (lto_varpool_encoder_deref, lto_varpool_encoder_lookup,
308         lto_varpool_encoder_encode, lto_varpool_encoder_delete,
309         lto_varpool_encoder_encode_initializer_p, lto_varpool_encoder_new):
310         Declare.
311         (output_varpool, input_varpool): Remove declarations.
312
313 2010-05-05  Jan Hubicka  <jh@suse.cz>
314
315         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Alias of variable
316         with body can prevail.
317
318 2010-05-05  Jan Hubicka  <jh@suse.cz>
319
320         * lto-symtab.c (lto_symtab_merge_decls_1): Prefer declarations with
321         size.
322
323 2010-05-05  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
324
325         * Makefile.in (build/gengtype.o): Add $(HASHTAB_H) to
326         dependencies.
327
328         * gengtype.h (erro_at_line): Constify pos argument.
329
330         * gengtype.c: Include hashtab.h.
331         (enum gc_used): Document GC_MAYBE_POINTED_TO.
332         (error_at_line): Constify pos argument.
333         (do_typedef): Initialize p->opt field.
334         (get_file_gtfilename): Fix comment typo.
335         (struct walk_type_data): Constify line field.
336         (get_output_file_for_structure): New function.
337         (write_local_func_for_structure): Constify orig_s argument.
338         Use get_output_file_for_structure.
339         (write_func_for_structure): Use get_output_file_for_structure.
340         (INDENT): New define.
341         (dump_pair, dump_type, dump_type_list, dump_typekind)
342         (dump_gc_used, dump_options, dump_fileloc, dump_type_u_s)
343         (dump_type_u_a, dump_type_u_param_struct, dump_everything): New
344         functions.
345         (seen_types): New variable.
346         (main): New variable do_dump.  Process "-d" command line option.
347         Call dump_everything if dump requested.
348
349 2010-05-05  Jakub Jelinek  <jakub@redhat.com>
350
351         * var-tracking.c (var_debug_decl): Save DECL_DEBUG_EXPR value
352         in a temporary instead of invoking the macro multiple times.
353         (track_expr_p): Likewise.
354
355 2010-05-04  Neil Vachharajani <nvachhar@google.com>
356
357         * doc/invoke.texi (-Wcoverage-mismatch): Updated documentation as
358         per new semantics.
359         * opts.c (decode_options): Enable -Werror=coverage-mismatch.
360         * coverage.c (get_coverage_counts): Always emit a warning.  Adjust
361         conditions for printing notes.
362         * common.opt (-Wcoverage-mismatch): Allow negative, default to
363         true, update documentation.
364         * Makefile.in (coverage.o): Add dependence on DIAGNOSTIC_H and intl.h.
365
366 2010-05-04  Jakub Jelinek  <jakub@redhat.com>
367
368         PR c/43981
369         * c-parser.c (c_parser_direct_declarator_inner): Call mark_exp_read
370         on dimen.
371
372 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
373
374         PR target/43799
375         * config/i386/i386.md (sse_prologue_save): Add clobber CC
376         register.
377         (*sse_prologue_save_insn1): Likewise.
378         (SSE prologue save splitter): Likewise.
379
380 2010-05-04  Eric Botcazou  <ebotcazou@adacore.com>
381
382         * tree.c (free_lang_data_in_one_sizepos): New inline function.
383         (free_lang_data_in_type): Call it on TYPE_{MIN|MAX}_VALUE of numerical
384         types.  Call it on TYPE_SIZE and TYPE_SIZE_UNIT of all types.
385         (free_lang_data_in_decl): Call it on DECL_SIZE and DECL_SIZE_UNIT of
386         all decls.  Call it on DECL_FIELD_OFFSET of fields.
387         (find_decls_types_r): Follow DECL_VALUE_EXPR.
388         (iterative_hash_expr) <PLACEHOLDER_EXPR>: New case.
389
390 2010-05-04  Martin Jambor  <mjambor@suse.cz>
391
392         * tree-sra.c (build_access_from_expr_1): The first parameter type
393         changed to simple tree.
394         (build_access_from_expr): Likewise, gsi parameter was eliminated.
395         (scan_assign_result): Renamed to assignment_mod_result, enum elements
396         renamed as well.
397         (build_accesses_from_assign): Removed all parameters except for a
398         simple gimple statement.  Now returns a simple bool.
399         (scan_function): All non-analysis parts moved to separate functions
400         sra_modify_function_body and ipa_sra_modify_function_body.  Removed all
401         parameters and updated both callers.
402         (sra_modify_expr): Removed parameter data.
403         (sra_modify_function_body): New function.
404         (perform_intra_sra): Call sra_modify_function_body to modify the
405         function body.
406         (replace_removed_params_ssa_names): Parameter data changed into
407         adjustments vector.
408         (sra_ipa_modify_expr): Likewise.  Also removed unused parameter gsi and
409         changed the parameter dont_convert to convert with the opposite
410         meaning.
411         (sra_ipa_modify_assign): Parameter data changed into adjustments
412         vector, return value changed to bool.
413         (ipa_sra_modify_function_body): New function.
414         (sra_ipa_reset_debug_stmts): Updated a comment.
415         (modify_function): Use ipa_sra_modify_function_body to modify function
416         body.
417
418 2010-05-04  H.J. Lu  <hongjiu.lu@intel.com>
419
420         PR middle-end/43671
421         * alias.c (true_dependence): Handle the same VALUE in x and mem.
422         (canon_true_dependence): Likewise.
423         (write_dependence_p): Likewise.
424
425 2010-05-04  Jan Hubicka  <jh@suse.cz>
426
427         * Makefile.in (cgraphbuild.o): Add dependency on ipa-utils.h
428         * cgraphbuild.c: Include ipa-utils.h
429         (record_reference_ctx): New struct.
430         (record_reference): Simplify to work on initializers; not statements.
431         (mark_address, mark_load, mark_store): New.
432         (build_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
433         walk PHI nodes too.
434         (record_references_in_initializer): Update use of record_reference.
435         (rebuild_cgraph_edges): Simplify using walk_stmt_load_store_addr_ops;
436         walk PHI nodes too.
437
438 2010-05-04  Jan Hubicka  <jh@suse.cz>
439
440         * lto-symtab.c (lto_cgraph_replace_node): Do not remove edges;
441         node will be removed anyway.
442         (lto_varpool_replace_node): Allow also unanalyzed nodes;
443         relink aliases of node into prevailing node.
444         * varpool.c (varpool_remove_node): Remove aliases properly;
445         when removing node, remove all its aliases too; remove DECL_INITIAL
446         of removed node; ggc_free the varpool node.
447
448 2010-05-04  Richard Guenther  <rguenther@suse.de>
449
450         PR tree-optimization/43879
451         * tree-ssa-structalias.c (alias_get_name): Use
452         DECL_ASSEMBLER_NAME if available.
453         (create_function_info_for): Return the varinfo node.
454         (ipa_pta_execute): Associate same-body aliases and extra names
455         with their origin nodes varinfo.  Dump DECL_ASSEMBLER_NAME.
456
457 2010-05-04  Kaz Kojima  <kkojima@gcc.gnu.org>
458
459         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Remove
460         static.
461
462 2010-05-04  Mikael Pettersson  <mikpe@it.uu.se>
463
464         PR bootstrap/43964
465         * ira-color.c (assign_hard_reg): Declare rclass and add_cost
466         only if HONOR_REG_ALLOC_ORDER is not defined.
467
468 2010-05-04  Richard Guenther  <rguenther@suse.de>
469
470         PR tree-optimization/43949
471         * tree-vrp.c (extract_range_from_binary_expr): Only handle
472         TRUNC_MOD_EXPR.
473
474 2010-04-26  Jason Merrill  <jason@redhat.com>
475
476         * c.opt (-fstrict-enums): New.
477         * doc/invoke.texi (C++ Dialect Options): Document -fstrict-enums.
478
479 2010-05-03  David Ung <davidu@mips.com>
480             James E. Wilson  <wilson@codesourcery.com>
481
482         * config/mips/mips.c (mips_output_division): If GENERATE_DIVIDE_TRAPS,
483         emit the trap instruction before the divide for TUNE_74K.
484
485 2010-05-03  Steven Bosscher  <steven@gcc.gnu.org>
486
487         * doc/tm.texi (defmac SMALL_REGISTER_CLASSES): Remove.
488         (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): Add documentation,
489         based on the above, for new target hook.
490
491         * hooks.c (hook_bool_mode_true): New generic hook.
492         * hooks.h (hook_bool_mode_true): Add prototype.
493
494         * target.h (struct gcc_target): Add small_register_classes_for_mode_p
495         target hook.
496         * target-def.h (TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P): New default
497         target hook, set to hook_bool_mode_false.
498         * regs.h: Remove default definition of SMALL_REGISTER_CLASSES.
499         * reload.c (push_secondary_reload): Replace SMALL_REGISTER_CLASSES
500         with targetm.small_register_classes_for_mode_p.
501         (find_reusable_reload): Likewise.
502         (combine_reloads): Likewise.
503         * reload1.c (reload_as_needed): Likewise.
504         * cse.c (approx_reg_cost_1, hash_rtx_cb): Likewise.
505         * ifcvt.c (noce_process_if_block, check_cond_move_block,
506         dead_or_predicable): Likewise.
507         * regmove.c (optimize_reg_copy_1): Likewise.
508         * calls.c (prepare_call_address): Likewise.
509         (precompute_register_parameters): Likewise.
510
511         * config/sh/sh.h: Replace SMALL_REGISTER_CLASSES with new target
512         hook definition.
513         * config/sh/sh.c (sh_small_register_classes_for_mode_p): Add
514         implementation of the hook that considers all register classes
515         small except for SH64.
516         (sh_override_options): Use the new hook.
517         * config/sh/sh-protos.h (sh_small_register_classes_for_mode_p):
518         Add prototype.
519
520         * config/arm/arm.h: Replace SMALL_REGISTER_CLASSES with new target
521         hook definition.
522         * config/arm/arm.c (arm_small_register_classes_for_mode_p): Add
523         implementation of the hook that considers all register classes
524         small for THUMB1.
525         * config/arm/arm-protos.h (arm_small_register_classes_for_mode_p):
526         Add prototype.
527
528         * config/mips/mips.h: Replace SMALL_REGISTER_CLASSES with new target
529         hook definition.
530         * config/mips/mips.c (mips_small_register_classes_for_mode_p): Add
531         implementation of the hook that considers all register classes
532         small for MIPS16.
533         * config/mips/mips-protos.h (mips_small_register_classes_for_mode_p):
534         Add prototype.
535
536         * config/i386/i386.h: Replace SMALL_REGISTER_CLASSES with new target
537         hook definition.
538         * config/m32c/m32c.h: Likewise.
539         * config/pdp11/pdp11.h: Likewise.
540         * config/avr/avr.h: Likewise.
541         * config/xtensa/xtensa.h: Likewise.
542         * config/m68hc11/m68hc11.h: Likewise.
543         * config/mn10300/mn10300.h: Likewise.
544         * config/mcore/mcore.h: Likewise.
545         * config/h8300/h8300.h: Likewise.
546         * config/bfin/bfin.h: Likewise.
547
548         * config/iq2000/iq2000.h: Remove SMALL_REGISTER_CLASSES definition.
549         * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES definition.
550
551 2010-05-03  Anatoly Sokolov  <aesok@post.ru>
552
553         * double-int.h (tree_to_double_int): Remove macro.
554         (double_int_to_tree, double_int_fits_to_tree_p): Move prototypes ...
555         * tree.h (double_int_to_tree, double_int_fits_to_tree_p): ... here.
556         (tree_to_double_int): New function.
557         * double-int.c (double_int_to_tree, double_int_fits_to_tree_p):
558         Move ...
559         * tree.c (double_int_to_tree, double_int_fits_to_tree_p): ... here.
560
561 2010-05-03  Richard Guenther  <rguenther@suse.de>
562
563         PR tree-optimization/43971
564         * tree-ssa-structalias.c (get_constraint_for_1): Fix
565         constraints in the !flag_delete_null_pointer_checks case.
566
567 2010-05-03  Jakub Jelinek  <jakub@redhat.com>
568
569         PR debug/43972
570         * config/i386/i386.c (ix86_delegitimize_address): Make sure the
571         result mode matches original rtl mode.
572
573 2010-05-03  Dave Korn  <dave.korn.cygwin@gmail.com>
574
575         PR target/43888
576         * config/i386/winnt.c (i386_pe_binds_local_p): Handle weak decls.
577
578 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
579
580         * config/i386/i386.c (ix86_target_string): Output 'flags', not 'isa',
581         when processing flag options.
582
583 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
584
585         * gcov-iov.c (main): Change format string placeholder
586         from %#08x to 0x%08x.
587         * genchecksum.c (dosum): Change format string placeholder
588         from %#02x to 0x%02x.
589
590 2010-05-02  Richard Guenther  <rguenther@suse.de>
591
592         PR tree-optimization/43879
593         * tree-tailcall.c (find_tail_calls): Clobbers also prevent tail calls.
594
595 2010-05-02  Bruno Haible  <bruno@clisp.org>
596
597         * doc/extend.texi (Function Attributes): Fix a typo.
598
599 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
600
601         Revert:
602         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Change format string
603         placeholder from 0x%x to %#x.
604         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
605         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
606         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
607         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
608         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
609         * config/i386/i386.c (ix86_target_string): Ditto.
610         * config/i386/i386.c (output_pic_addr_const): Ditto.
611         (print_operand): Ditto.
612
613 2010-05-02  Uros Bizjak  <ubizjak@gmail.com>
614
615         * vmsdbgout.c (ASM_OUTPUT_DEBUG_DATA1): Change format string
616         placeholder from 0x%x to %#x.
617         (ASM_OUTPUT_DEBUG_DATA1): Ditto.
618         (ASM_OUTPUT_DEBUG_DATA4): Ditto.
619         (ASM_OUTPUT_DEBUG_DATA): Ditto.
620         (ASM_OUTPUT_DEBUG_ADDR_DATA): Ditto.
621         (ASM_OUTPUT_DEBUG_DATA8): Ditto.
622         * optc-gen.awk: Ditto.
623         * hwint.h (HOST_WIDE_INT_PRINT_DOUBLE_HEX): Ditto.
624         (HOST_WIDE_INT_PRINT_HEX): Ditto.
625         (HOST_WIDEST_INT_PRINT_HEX): Ditto.
626         (HOST_WIDEST_INT_PRINT_DOUBLE_HEX): Ditto.
627
628 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
629
630         * target.h (struct calls): Add function_value_regno_p field.
631         * target-def.h (TARGET_FUNCTION_VALUE_REGNO_P): Define.
632         (TARGET_INITIALIZER): Use TARGET_FUNCTION_VALUE_REGNO_P.
633         * targhooks.c (default_function_value_regno_p): New function.
634         * targhooks.h (default_function_value_regno_p): Declare function.
635         * rtlanal.c (keep_with_call_p): Use function_value_regno_p hook.
636         * builtins.c. (apply_result_size): (Ditto.).
637         * combine.c. (likely_spilled_retval_p): (Ditto.).
638         * mode-switching.c. Include 'target.h'.
639         (create_pre_exit): Use function_value_regno_p hook.
640         * Makefile.in (mode-switching.o): Add dependency on TARGET_H.
641         * doc/tm.texi (FUNCTION_VALUE_REGNO_P,
642         TARGET_FUNCTION_VALUE_REGNO_P): Revise documentation.
643
644         * config/i386/i386.h (TARGET_FUNCTION_VALUE_REGNO_P): Remove macro.
645         * config/i386/i386.c (TARGET_FUNCTION_VALUE_REGNO_P): Define macro.
646         (ix86_function_value_regno_p): Declare as static, change argument
647         type to const unsigned int.
648         * config/i386/i386-protos.h (ix86_function_value_regno_p): Remove.
649
650 2010-05-01  Richard Guenther  <rguenther@suse.de>
651
652         PR tree-optimization/43949
653         * tree-vrp.c (ssa_name_nonnegative_p): Return true for unsigned
654         types.
655         (extract_range_from_binary_expr): Handle *_MOD_EXPR.
656
657 2010-05-01  Anatoly Sokolov  <aesok@post.ru>
658
659         * rtl.h (CONST_DOUBLE_P): Define.
660         (rtx_to_double_int): Declare.
661         * emit-rtl.c (rtx_to_double_int): New function.
662         * dwarf2out.c (insert_double): New function.
663         (loc_descriptor, add_const_value_attribute): Clean up, use
664         rtx_to_double_int and insert_double functions.
665
666 2010-05-01  Jonathan Wakely  <jwakely.gcc@gmail.com>
667
668         * doc/extend.texi (Inline): Add missing return keyword to examples.
669         (Function Attributes, Variable Attributes, Pragmas): Hyphenate
670         "command-line".
671
672 2010-04-30  Eric Botcazou  <ebotcazou@adacore.com>
673
674         * tree-ssa-loop-ivopts.c (may_be_unaligned_p): Check the alignment of
675         the variable part of the offset as well.  Use highest_pow2_factor for
676         all alignment checks.
677
678 2010-04-30  Richard Guenther  <rguenther@suse.de>
679
680         PR tree-optimization/43879
681         * tree-ssa-structalias.c (type_could_have_pointers): Functions
682         can have pointers.
683
684 2010-04-30  Jan Hubicka  <jh@suse.cz>
685
686         * lto-symtab.c (lto_symtab_resolve_can_prevail_p): Chose var with
687         varpool.
688         (lto_symtab_merge_decls_1): Remove logic looking for an initializer.
689
690 2010-04-30  Jan Hubicka  <jh@suse.cz>
691
692         * cgraph.h (cgraph_node_set_nonempty_p, varpool_node_set_nonempty_p):
693         New.
694         * lto-cgraph.c (input_cgraph): Remove call to lto_mark_file_for_ltrans.
695         * lto-streamer.h (lto_file_decl_data): Remove needs_ltrans_p.
696         (lto_file_needs_ltrans_p, lto_mark_file_for_ltrans,
697         cgraph_node_set_needs_ltrans_p): Remove.
698
699 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
700
701         * sdbout.c: Include vec.h, do not include varray.h.
702         (deferred_global_decls, sdbout_global_decl,
703         sdbout_finish, sdbout_init): Use VEC instead of VARRAY.
704         * toplev.c: Do not include varray.h.
705         (dump_memory_report): Do not dump VARRAY statistics.
706         * gengtype.c (open_base_file): Ignore varray.h.
707         * Makefile.in: Update for abovementioned changes.
708         Remove all traces of varray.c and varray.h.
709         * varray.c: Remove file.
710         * varray.h: Remove file.
711
712 2010-04-30  Jan Hubicka  <jh@suse.cz>
713
714         * lto-cgraph.c (lto_output_varpool_node): Always output constant pool
715         references.
716
717 2010-04-30  Jan Hubicka  <jh@suse.cz>
718
719         * tree-profile.c (tree_init_ic_make_global_vars): Mark new decls as
720         needed.
721
722 2010-04-30  Richard Guenther  <rguenther@suse.de>
723
724         * tree-ssa-structalias.c (get_constraint_for_1): Generate
725         constraints for CONSTRUCTOR.
726
727 2010-04-30  Richard Guenther  <rguenther@suse.de>
728
729         PR lto/43946
730         * passes.c (init_optimization_passes): Move pass_ipa_free_lang_data
731         first after all lowering passes.
732
733 2010-04-30  Steven Bosscher  <steven@gcc.gnu.org>
734
735         * toplev.c: Include varray.h for statistics dumping.
736         * tree.h: Do not declare varray_head_tag.
737         * tree-into-ssa.c, tree-ssa-uninit.c, tree-phinodes.c, omega.c,
738         regs.h, lto-cgraph.c, tree-ssa-loop-ivopts.c, tree-nomudflap.c,
739         c-objc-common.c, lto-streamer-out.c, tree-ssa-propagate.c,
740         gimple-low.c, c-semantics.c, dwarf2out.c, lto-streamer-in.c,
741         lto-section-in.c, alias.c, tree-if-conv.c, gimplify.c, ggc-zone.c,
742         tree-ssa.c, tree-ssa-loop-prefetch.c, integrate.h, c-gimplify.c,
743         c-common.c, c-common.h, reg-stack.c, basic-block.h,
744         tree-ssa-structalias.c, lto-section-out.c, tree-ssanames.c: Do not
745         include varray.h.
746         * Makefile.in: Update for abovementioned changes.
747
748 2010-04-30  Jakub Jelinek  <jakub@redhat.com>
749
750         PR debug/43942
751         * tree.c (auto_var_in_fn_p): Return false for DECL_EXTERNAL vars.
752
753 2010-04-30  Hariharan Sandanagobalane  <hariharan@picochip.com>
754
755         * config/picochip/picochip.c (picochip_legitimize_address): Define.
756         Use this function to do machine-specific conversion.
757         (picochip_legitimize_reload_address): Likewise.
758         (picochip_legitimate_address_p): Check valid base register only if
759         strict.
760         (picochip_check_conditional_copy): Check for modw only if opnd is
761         register.
762         * config/picochip/picochip.h (LEGITIMIZE_RELOAD_ADDRESS): Use this
763         to call the function in c.
764         * config/picochip/picochip-protos.h
765         (picochip_legitimize_reload_address): Define.
766         * config/picochip/picochip.md (supported_compare1): Define.
767
768 2010-04-30  Jan Hubicka  <jh@suse.cz>
769
770         * cgraph.h (cgraph_local_info): Remove for_functions_valid.
771         (cgraph_global_info): Remove inlined.
772         (LTO_cgraph_tag_names): Remove.
773         (LTO_cgraph_tags, LCC_NOT_FOUND): Move to ...
774         * lto-cgraph.c (LTO_cgraph_tags, LCC_NOT_FOUND): ... here;
775         simplify cgraph tags and document.
776         (lto_output_node): Use only LTO_cgraph_unavail_node and
777         LTO_cgraph_analyzed_node; Do not save analzed, reachable,
778         for_functions_valid, global info, process and output flags.
779         (input_overwrite_node): Initialize estimated stack size and
780         estimated growth.  Do not read flags we no longer store.
781         (input_node): Likewise do not read info no longer stored.
782         * ipa-inline.c (cgraph_mark_inline_edge): Do not set global.inlined
783         flag.
784
785 2010-04-30  Richard Guenther  <rguenther@suse.de>
786
787         PR tree-optimization/43879
788         * tree-ssa-structalias.c (get_constraint_for_1): Properly
789         handle non-zero initializers.
790
791 2010-04-30  Richard Guenther  <rguenther@suse.de>
792
793         * builtins.c (fold_builtin_1): Delete free (0).
794
795 2010-04-29  Jan Hubicka  <jh@suse.cz>
796
797         * gengtype.c (open_base_files): Add lto-streamer.h
798         * cgraph.h (cgraph_local_info): lto_file_data is now in GGC.
799         (pass_ipa_cp): GGC collect.
800         * toplev. (compile_file): Do not output symbols.
801         * ipa-inline.c (pass_ipa_inline): Add ggc collect.
802         * timevar.def (TV_VARPOOL, TV_IPA_LTO_DECL_INIT_IO,
803         TV_IPA_LTO_DECL_MERGE, TV_IPA_LTO_CGRAPH_MERGE, TV_VAROUT): New.
804         * lto-section-in.c: Include ggc.h
805         (lto_new_in_decl_state): Alloc in GGC.
806         (lto_delete_in_decl_state): Likewise.
807         * ipa.c (pass_ipa_function_visibility, pass_ipa_whole_program):
808         Collect.
809
810 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
811
812         PR target/42895
813         * doc/tm.texi (ADJUST_REG_ALLOC_ORDER): Renamed from
814         ORDER_REGS_FOR_LOCAL_ALLOC.  All instances of this macro changed.
815         (HONOR_REG_ALLOC_ORDER): Describe new macro.
816         * ira.c (setup_alloc_regs): Use ADJUST_REG_ALLOC_ORDER if defined.
817         * ira-color.c (assign_hard_reg): Take prologue/epilogue costs into
818         account only if HONOR_REG_ALLOC_ORDER is not defined.
819         * config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Define.
820         * system.h (ORDER_REGS_FOR_LOCAL_ALLOC): Poison.
821
822 2010-04-29  Jon Grant  <04@jguk.org>
823
824         * collect2.c (vflag): Change type from int to bool.
825         (debug): Likewise.
826         (helpflag): New global bool.
827         (main): Set vflag and debug with boolean, not integer truth values.
828         Accept new "--help" option and output usage text if found.
829         * collect2.h (vflag): Update prototype.
830         (debug): Likewise.
831
832 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
833
834         PR bootstrap/43936
835         * plugin.h (flag_plugin_added): Moved out of invoke_plugin_callbacks.
836
837 2010-04-29  Richard Guenther  <rguenther@suse.de>
838
839         PR bootstrap/43935
840         * plugin.h (invoke_plugin_callbacks): Annotate arguments
841         with ATTRIBUTE_UNUSED.
842
843 2010-04-29  H.J. Lu  <hongjiu.lu@intel.com>
844
845         PR target/43921
846         * config/i386/i386.c (get_some_local_dynamic_name): Replace
847         INSN_P with NONDEBUG_INSN_P.
848         (distance_non_agu_define): Likewise.
849         (distance_agu_use): Likewise.
850
851 2010-04-29  Bernd Schmidt  <bernds@codesourcery.com>
852
853         From Dominique d'Humieres <dominiq@lps.ens.fr>
854         PR bootstrap/43858
855         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs to compute
856         test_set.
857
858 2010-04-29  Brian Hackett  <bhackett1024@gmail.com>
859
860         * plugin.h (invoke_plugin_callbacks): New inline function.
861         * plugin.c (flag_plugin_added): New global flag.
862         (add_new_plugin): Initialize above flag.
863         (invoke_plugin_callbacks): Rename to ...
864         (invoke_plugin_callbacks_full): ... this.
865
866 2010-04-28  Jan Hubicka  <jh@suse.cz>
867
868         * lto-symtab.c (lto_symtab_entry_def) Add vnode.
869         (lto_varpool_replace_node): New.
870         (lto_symtab_resolve_symbols): Resolve varpool nodes.
871         (lto_symtab_merge_decls_1): Prefer decls with varpool node.
872         (lto_symtab_merge_cgraph_nodes_1): Merge varpools.
873         * cgraph.h (varpool_node_ptr): New type.
874         (varpool_node_ptr): New vector.
875         (varpool_node_set_def): New structure.
876         (varpool_node_set): New type.
877         (varpool_node_set): New vector.
878         (varpool_node_set_element_def): New structure.
879         (varpool_node_set_element, const_varpool_node_set_element): New types.
880         (varpool_node_set_iterator): New type.
881         (varpool_node): Add prev pointers, add used_from_other_partition,
882         in_other_partition.
883         (varpool_node_set_new, varpool_node_set_find, varpool_node_set_add,
884         varpool_node_set_remove, dump_varpool_node_set, debug_varpool_node_set,
885         varpool_get_node, varpool_remove_node): Declare.
886         (vsi_end_p, vsi_next, vsi_node, vsi_start, varpool_node_in_set_p,
887         varpool_node_set_size): New inlines.
888         * cgraph.c (dump_cgraph_node): Dump asm names of aliases.
889         * tree-pass.h (varpool_node_set_def): Forward declare.
890         (ipa_opt_pass_d): Summary writting takes vnode sets too.
891         (ipa_write_optimization_summaries): Update prototype.
892         * ipa-cp.c (ipcp_write_summary): Update.
893         * ipa-reference.c (ipa_reference_write_summary): Update.
894         * lto-cgraph.c (lto_output_varpool_node): New static function.
895         (output_varpool): New function.
896         (input_varpool_node): New static function.
897         (input_varpool_1): New function.
898         (input_cgraph): Input varpool.
899         * ipa-pure-const.c (pure_const_write_summary): Update.
900         * lto-streamer-out.c (lto_output): Update, output varpool too.
901         (write_global_stream): Kill WPA hack.
902         (produce_asm_for_decls): Update.
903         (output_alias_pair_p): Handle variables.
904         (output_unreferenced_globals): Output only needed partition of varpool.
905         * ipa-inline.c (inline_write_summary): Update.
906         * lto-streamer-in.c (lto_input_tree_ref, lto_input_tree): Do not build
907         cgraph.
908         * lto-section-in.c (lto_section_name): Add varpool and jump funcs.
909         * ipa.c (hash_varpool_node_set_element, eq_varpool_node_set_element,
910         varpool_node_set_new, varpool_node_set_add,
911         varpool_node_set_remove, varpool_node_set_find, dump_varpool_node_set,
912         debug_varpool_node_set): New functions.
913         * passes.c (rest_of_decl_compilation): when in LTO do not finalize.
914         (execute_one_pass): Process new decls too.
915         (ipa_write_summaries_2): Pass around vsets.
916         (ipa_write_summaries_1): Likewise.
917         (ipa_write_summaries): Build vset; be more selective about cgraph nodes
918         to add.
919         (ipa_write_optimization_summaries_1): Pass around vsets.
920         (ipa_write_optimization_summaries): Likewise.
921         * varpool.c (varpool_get_node): New.
922         (varpool_node): Update doubly linked lists.
923         (varpool_remove_node): New.
924         (dump_varpool_node): More dumping.
925         (varpool_enqueue_needed_node): Update doubly linked lists.
926         (decide_is_variable_needed): Kill ltrans hack.
927         (varpool_finalize_decl): Kill lto hack.
928         (varpool_assemble_decl): Skip decls in other partitions.
929         (varpool_assemble_pending_decls): Update doubly linkes lists.
930         (varpool_empty_needed_queue): Likewise.
931         (varpool_extra_name_alias): Likewise.
932         * lto-streamer.c (lto_get_section_name): Add vars section.
933         * lto-streamer.h (lto_section_type): Update.
934         (output_varpool, input_varpool): Declare.
935
936 2010-04-28  Mike Stump  <mikestump@comcast.net>
937
938         * config/i386/darwin.h (CC1_SPEC): Ignore -mdynamic-no-pic for now.
939
940 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
941
942         * lto-streamer-in.c (unpack_ts_type_value_fields): Replace test for
943         record or union type with RECORD_OR_UNION_TYPE_P predicate.
944         (lto_input_ts_type_tree_pointers): Likewise.
945         * lto-streamer-out.c (pack_ts_type_value_fields): Likewise.
946         (lto_output_ts_type_tree_pointers): Likewise.
947
948 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
949
950         Uniquization of constants at the Tree level
951         * tree.h (DECL_IN_CONSTANT_POOL): New macro.
952         (tree_decl_with_vis): Add in_constant_pool bit, move shadowed_for_var_p
953         bit to the end.
954         (tree_output_constant_def): Declare.
955         * gimplify.c (gimplify_init_constructor): When using block copy, first
956         uniquize the constant constructor on the RHS.
957         * lto-streamer-in.c (unpack_ts_decl_with_vis_value_fields): Deal with
958         DECL_IN_CONSTANT_POOL flag.
959         * lto-streamer-out.c (pack_ts_decl_with_vis_value_fields): Likewise.
960         * varasm.c (make_decl_rtl): Deal with variables belonging to the global
961         constant pool.
962         (assemble_variable): Deal with symbols belonging to the tree constant
963         pool.
964         (get_constant_section): Add ALIGN parameter and simplify.
965         (build_constant_desc): Build a VAR_DECL and attach it to the symbol.
966         (assemble_constant_contents): Use the expression of the VAR_DECL.
967         (output_constant_def_contents): Use the alignment of the VAR_DECL.
968         (tree_output_constant_def): New global function.
969         (mark_constant): Use the expression of the VAR_DECL.
970         (place_block_symbol): Use the alignment of the VAR_DECL and the size of
971         its expression.
972         (output_object_block): Likewise and assemble the expression.
973
974 2010-04-28  Eric Botcazou  <ebotcazou@adacore.com>
975
976         * lto-streamer.c [LTO_STREAMER_DEBUG] (tree_htab, tree_hash_entry,
977         hash_tree, eq_tree): New tree hash table.
978         (lto_streamer_init) [LTO_STREAMER_DEBUG]: Initialize it.
979         [LTO_STREAMER_DEBUG] (lto_orig_address_map, lto_orig_address_get,
980         lto_orig_address_remove): Reimplement.
981
982 2010-04-28  Xinliang David Li  <davidxl@google.com>
983
984         PR c/42643
985         * tree-ssa-uninit.c (can_skip_redundant_opnd): New function.
986         (compute_uninit_opnds_pos): New function.
987         (is_non_loop_exit_postdominating): New function.
988         (compute_control_dep_chain): New function.
989         (find_pdom): New function.
990         (convert_control_dep_chain_into_preds): New function.
991         (find_predicates): New function.
992         (find_control_equiv_block): New function.
993         (collect_phi_def_edges): New function.
994         (find_def_preds): New function.
995         (find_dom): New function.
996         (dump_predicates): New function.
997         (get_cmp_code): New function.
998         (is_value_included_in): New function.
999         (find_matching_predicate_in_rest_chains): New function.
1000         (use_pred_not_overlap_with_undef_path_pred): New function.
1001         (is_use_properly_guarded): New function.
1002         (normalize_cond_1): New function.
1003         (is_and_or_or): New function.
1004         (normalize_cond): New function.
1005         (is_gcond_subset_of): New function.
1006         (is_subset_of_any): New function.
1007         (is_or_set_subset_of): New function.
1008         (is_and_set_subset_of): New function.
1009         (is_norm_cond_subset_of): New function.
1010         (is_pred_expr_subset_of): New function.
1011         (is_pred_chain_subset_of): New function.
1012         (is_included_in): New function.
1013         (is_superset_of): New function.
1014         (find_uninit_use): New function.
1015         (warn_uninitialized_phi): New function.
1016         (compute_possibly_undefined_names): New function.
1017         (ssa_undefined_value_p): New function.
1018         (execute_late_warn_uninitialized): New function.
1019         * tree-ssa.c (ssa_undefined_value_p): Removed.
1020         (warn_uninit): Changed to extern.
1021         (warn_uninitialized_phi): Removed.
1022         (warn_uninitialized_vars): Changed to extern.
1023         (execute_late_warn_uninitialized): Removed
1024         * tree-flow.h: Add new prototypes.
1025         * timevar.def: Add new time variable.
1026         * Makefile.in: Add new build file.
1027
1028 2010-04-28  Uros Bizjak  <ubizjak@gmail.com>
1029
1030         * config/alpha/elf.h (ASM_DECLARE_OBJECT_NAME): Use gnu_unique_object
1031         type if available.
1032
1033 2010-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1034
1035         PR target/22224
1036         * config/alpha/osf5.h (ASM_OUTPUT_LOCAL): Redefine.
1037
1038 2010-04-28  Martin Jambor  <mjambor@suse.cz>
1039
1040         * cgraph.h (struct cgraph_node): New field indirect_calls.
1041         (struct cgraph_indirect_call_info): New type.
1042         (struct cgraph_edge): Removed field indirect_call. New fields
1043         indirect_info, indirect_inlining_edge and indirect_unknown_callee.
1044         (cgraph_create_indirect_edge): Declare.
1045         (cgraph_make_edge_direct): Likewise.
1046         (enum LTO_cgraph_tags): New item LTO_cgraph_indirect_edge.
1047         * ipa-prop.h (struct ipa_param_call_note): Removed.
1048         (struct ipa_node_params): Removed field param_calls.
1049         (ipa_create_all_structures_for_iinln): Declare.
1050         * cgraph.c: Described indirect edges and uids in initial comment.
1051         (cgraph_add_edge_to_call_site_hash): New function.
1052         (cgraph_edge): Search also among the indirect edges, use
1053         cgraph_add_edge_to_call_site_hash to add edges to the call site hash.
1054         (cgraph_set_call_stmt): Possibly turn an indirect edge into a direct
1055         one, use cgraph_add_edge_to_call_site_hash to add edges to the call
1056         site hash.
1057         (initialize_inline_failed): Assign a reason to indirect edges.
1058         (cgraph_create_edge_1): New function.
1059         (cgraph_create_edge): Moved some functionality to
1060         cgraph_create_edge_1.
1061         (cgraph_create_indirect_edge): New function.
1062         (cgraph_edge_remove_callee): Add an assert checking for
1063         non-indirectness.
1064         (cgraph_edge_remove_caller): Special-case indirect edges.
1065         (cgraph_remove_edge): Likewise.
1066         (cgraph_set_edge_callee): New function.
1067         (cgraph_redirect_edge_callee): Use cgraph_set_edge_callee.
1068         (cgraph_make_edge_direct): New function.
1069         (cgraph_update_edges_for_call_stmt_node): Do nothing only when also
1070         the declaration of the call statement matches.
1071         (cgraph_node_remove_callees): Special-case indirect edges.
1072         (cgraph_clone_edge): Likewise.
1073         (cgraph_clone_node): Clone also the indirect edges.
1074         (dump_cgraph_node): Dump indirect_inlining_edge flag instead of
1075         indirect_call, dump count of indirect_calls edges.
1076         * ipa-prop.c (iinlining_processed_edges): New variable.
1077         (ipa_note_param_call): Create indirect edges instead of
1078         creating notes.  New parameter node.
1079         (ipa_analyze_call_uses): New parameter node, pass it on to
1080         ipa_note_param_call.
1081         (ipa_analyze_stmt_uses): Likewise.
1082         (ipa_analyze_params_uses): Pass node to ipa_analyze_stmt_uses.
1083         (print_edge_addition_message): Work on edges rather than on notes.
1084         (update_call_notes_after_inlining): Likewise, renamed to
1085         update_indirect_edges_after_inlining.
1086         (ipa_create_all_structures_for_iinln): New function.
1087         (ipa_free_node_params_substructures): Do not free notes.
1088         (ipa_edge_duplication_hook): Propagate bits within
1089         iinlining_processed_edges bitmap.
1090         (ipa_node_duplication_hook): Do not duplicate notes.
1091         (free_all_ipa_structures_after_ipa_cp): Renamed to
1092         ipa_free_all_structures_after_ipa_cp.
1093         (free_all_ipa_structures_after_iinln): Renamed to
1094         ipa_free_all_structures_after_iinln.g
1095         (ipa_write_param_call_note): Removed.
1096         (ipa_read_param_call_note): Removed.
1097         (ipa_write_indirect_edge_info): New function.
1098         (ipa_read_indirect_edge_info): Likewise.
1099         (ipa_write_node_info): Do not stream notes, do stream information
1100         in indirect edges.
1101         (ipa_read_node_info): Likewise.
1102         (lto_ipa_fixup_call_notes): Removed.
1103         * ipa-cp.c (pass_ipa_cp): Set stmt_fixup to NULL.
1104         * ipa-inline.c (pass_ipa_inline): Likewise.
1105         * cgraphunit.c (verify_cgraph_node): Check also indirect edges.
1106         * cif-code.def (INDIRECT_UNKNOWN_CALL): New reason.
1107         * tree-inline.c (copy_bb): Removed an unnecessary double check for
1108         is_gimple_call.
1109         * tree-inline.c (get_indirect_callee_fndecl): Do not consider indirect
1110         edges.
1111         * lto-cgraph.c (output_outgoing_cgraph_edges): New function.
1112         (output_cgraph): Stream also indirect edges.
1113         (lto_output_edge): Added capability to stream indirect edges.
1114         (input_edge): Likewise.
1115         (input_cgraph_1): Likewise.
1116         * lto-streamer-in.c (fixup_call_stmt_edges_1): Fixup also statements
1117         of indirect edges.
1118
1119 2010-04-28  Richard Guenther  <rguenther@suse.de>
1120
1121         PR tree-optimization/43879
1122         PR tree-optimization/43909
1123         * tree-ssa-structalias.c (struct variable_info): Add
1124         only_restrict_pointers flag.
1125         (new_var_info): Initialize it.  Increment stats.total_vars here.
1126         (create_function_info_for): Do not increment stats.total_vars
1127         here.
1128         (get_function_part_constraint): Fix build with C++.
1129         (insert_into_field_list): Remove.
1130         (push_fields_onto_fieldstack): Properly merge fields.
1131         (create_variable_info_for): Split and simplify.
1132         (create_variable_info_for_1): New piece.
1133         (intra_create_variable_infos): Properly make restrict constraints
1134         from parameters.
1135
1136 2010-04-28  Richard Guenther  <rguenther@suse.de>
1137
1138         PR c++/43880
1139         * tree-inline.c (copy_bind_expr): Also copy bind expr vars value-exprs.
1140
1141 2010-04-27  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1142             Jan Hubicka <hubicka@ucw.cz>
1143
1144         * doc/invoke.texi (-Wsuggest-attribute=const,
1145         -Wsuggest-attribute=pure): Document.
1146         * ipa-pure-const.c: Include toplev.h, intl.h and opts.h.
1147         (function_always_visible_to_compiler_p,
1148         suggest_attribute, warn_function_pure, warn_function_const):
1149         New functions.
1150         (check_call): Improve debug info.
1151         (analyze_function): Do not check availability.
1152         (add_new_function): Check availability.
1153         (propagate): Output warnings.
1154         (skip_function_for_local_pure_const): New function.
1155         (local_pure_const): Use it; output warnings.
1156         * common.opt (Wsuggest-attribute=const,
1157         Wsuggest-attribute=pure): New.
1158
1159 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
1160
1161         * dwarf2out.c (def_cfa_1): After DW_CFA_def_cfa_expression
1162         force using DW_CFA_def_cfa instead of DW_CFA_def_cfa_register
1163         or DW_CFA_def_cfa_offset{,_sf}.
1164
1165 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
1166
1167         * tree.h: Fix truncated long macros.
1168
1169 2010-04-27  Kai Tietz  <kai.tietz@onevision.com>
1170
1171         * collect2.c (TARGET_64BIT): Redefine to target's default.
1172         * tlink.c: Likewise.
1173         * config/i386/cygming.h (USER_LABEL_PREFIX): Define
1174         dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
1175         * config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
1176         for underscoring __USER_LABEL_PREFIX__.
1177         * config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
1178         (SUB_LINK_ENTRY32): New.
1179         (SUB_LINK_ENTRY64): New.
1180         (LINK_SPEC): Replace entry point spec by SUB_LINK_ENTRY.
1181         * config/i386/mingw32 (SUB_LINK_ENTRY32): New.
1182         (SUB_LINK_ENTRY64): New.
1183         (SUB_LINK_ENTRY): New.
1184         (LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
1185         (DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
1186         x64 target is choosen.
1187         * config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
1188         * configure: Regenerated.
1189         * configure.ac (leading-mingw64-underscores): Option added.
1190
1191 2010-04-27  Jan Hubicka  <jh@suse.cz>
1192
1193         * doc/invoke.texi (-fipa-profile): Document.
1194         * opts.c (decode_options): Enable ipa-profile at -O1.
1195         * timevar.def (TV_IPA_PROFILE): Define.
1196         * common.opt (fipa-profile): Add.
1197         * cgraph.c (cgraph_clone_node): Set local flag and clear vtable method
1198         flag for clones.
1199         (cgraph_propagate_frequency): Handle only local ones.
1200         * tree-pass.h (pass_ipa_profile): Declare.
1201         * ipa-profile.c (gate_profile): Use flag_ipa_profile.
1202         (pass_ipa_profile): Use TV_IPA_PROFILE.
1203         * ipa.c (ipa_profile): New function.
1204         (gate_ipa_profile): Likewise.
1205         (pass_ipa_profile): New global variable.
1206         * passes.c (pass_ipa_profile): New.
1207
1208 2010-04-27  Nathan Froyd  <froydnj@codesourcery.com>
1209
1210         * config/arm/arm.c (arm_expand_builtin): Remove redundant declaration.
1211
1212 2010-04-27  Martin Jambor  <mjambor@suse.cz>
1213
1214         PR middle-end/43812
1215         * ipa.c (dissolve_same_comdat_group_list): New function.
1216         (function_and_variable_visibility): Call
1217         dissolve_same_comdat_group_list when comdat group contains external or
1218         newly local nodes.
1219         * cgraphunit.c (verify_cgraph_node): Verify that same_comdat_group
1220         lists are circular and that they contain only DECL_ONE_ONLY nodes.
1221
1222 2010-04-27  Eric Botcazou  <ebotcazou@adacore.com>
1223
1224         * varasm.c (decode_addr_const): Handle special case of INDIRECT_REF.
1225         (const_hash_1) <VECTOR_CST>: New case.
1226         (compare_constant) <VECTOR_CST>: Likewise.
1227         <ADDR_EXPR>: Deal with LABEL_REFs.
1228         (copy_constant) <VECTOR_CST>: New case.
1229
1230 2010-04-27  Jan Hubicka  <jh@suse.cz>
1231
1232         * cgraph.c (cgraph_propagate_frequency): New function.
1233         * cgraph.h (cgraph_propagate_frequency): Declare.
1234         * ipa-inline.c (cgraph_clone_inlined_nodes): Call
1235         cgraph_propagate_frequency.
1236
1237 2010-04-27  Jakub Jelinek  <jakub@redhat.com>
1238
1239         * unwind-dw2.c (_Unwind_DebugHook): Add used and noclone attributes.
1240
1241 2010-04-27  Bernd Schmidt  <bernds@codesourcery.com>
1242
1243         PR target/40657
1244         * config/arm/arm.c (thumb1_extra_regs_pushed): New function.
1245         (thumb1_expand_prologue, thumb1_output_function_prologue): Call it
1246         here to determine which regs to push and how much stack to reserve.
1247
1248 2010-04-27  Jie Zhang  <jie@codesourcery.com>
1249
1250         * doc/gimple.texi (gimple_statement_with_ops): Remove
1251         addresses_taken field.
1252         (gimple_statement_with_memory_ops): Likewise.
1253
1254 2010-04-27  Jan Hubicka  <jh@suse.cz>
1255
1256         * tree-inline.c (eni_inlining_weights): Remove.
1257         (estimate_num_insns): Special case more builtins.
1258
1259 2010-04-27  Shujing Zhao  <pearly.zhao@oracle.com>
1260
1261         PR c/32207
1262         * c-typeck.c (build_binary_op): Move forward check for comparison
1263         pointer with null pointer constant and adjust the diagnostic message.
1264
1265 2010-04-27  Dave Korn  <dave.korn.cygwin@gmail.com>
1266
1267         PR lto/42776
1268         * configure.ac (gcc_cv_as_section_has_align): Set if installed
1269         binutils supports extended .section directive needed by LTO, or
1270         warn if older binutils found.
1271         (LTO_BINARY_READER): New AC_SUBST'd variable.
1272         (LTO_USE_LIBELF): Likewise.
1273         * gcc/config.gcc (lto_binary_reader): New target-specific configure
1274         variable.
1275         * gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
1276         (LTO_USE_LIBELF): Likewise.
1277         * configure: Regenerate.
1278
1279         * collect2.c (is_elf): Rename from this ...
1280         (is_elf_or_coff): ... to this, and recognize and allow i386 COFF
1281          object files in addition to ELF-formatted ones.
1282         (scan_prog_file): Caller updated.  Also allow for LTO info marker
1283         symbol to be prefixed or not by an extra underscore.
1284
1285         * config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
1286         * config/i386/winnt.c: Also #include lto-streamer.h
1287         (i386_pe_asm_named_section): Specify 1-byte section alignment for
1288         LTO named sections.
1289         (i386_pe_asm_output_aligned_decl_common): Add comment.
1290         (i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
1291
1292 2010-04-27  Hans-Peter Nilsson  <hp@bitrange.com>
1293
1294         PR target/43889
1295         * config/mmix/mmix.md ("*divdi3_nonknuth", "*moddi3_nonknuth"):
1296         Add missing earlyclobber for second alternative.
1297
1298 2010-04-26  Bernd Schmidt  <bernds@codesourcery.com>
1299
1300         * df-problems.c (df_simulate_initialize_forwards): Set, don't clear,
1301         bits for artificial defs at the top of the block.
1302         * fwprop.c (single_def_use_enter_block): Don't call it.
1303
1304 2010-04-26  Jack Howarth <howarth@bromo.med.uc.edu>
1305
1306         PR 43715
1307         * gcc/configure.ac: Use "$gcc_cv_nm -g" on darwin
1308         instead of "$gcc_cv_objdump -T".
1309         Use "-undefined dynamic_lookup" on darwin.
1310         * gcc/configure: Regenerate.
1311
1312 2010-04-26  Jakub Jelinek  <jakub@redhat.com>
1313
1314         PR c/43893
1315         * c-omp.c (c_finish_omp_for): Handle also EQ_EXPR.
1316
1317 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
1318
1319         * c-parser.c (struct c_token): Move location field up.
1320         * c-tree.h (struct c_typespec): Move expr_const_operands field up.
1321         (struct c_declspecs): Convert typespec_word, storage_class, and
1322         default_int_p into bitfields.
1323         (struct c_declarator): Move loc field up.
1324
1325 2010-04-26  Nathan Froyd  <froydnj@codesourcery.com>
1326
1327         * cfgloop.h (struct loop): Move can_be_parallel field up.
1328         * ipa-prop.h (struct ip_node_params): Move bitfields up.
1329         * tree-ssa-loop-ivopts.c (struct version_info): Move inv_id field
1330         down.
1331         (struct iv_cand): Convert pos field into a bitfield.
1332         * tree-vectorizer.h (struct _loop_vec_info): Move loop_line_number
1333         field up.
1334         (struct _stmt_vec_info): Shuffle fields for better packing.
1335
1336 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
1337
1338         * varasm.c (IN_NAMED_SECTION): Remove guard.
1339         * config/arm/unknown-elf.h (IN_NAMED_SECTION): Rename to...
1340         (IN_NAMED_SECTION_P): ...this.
1341         (ASM_OUTPUT_ALIGNED_BSS): Adjust for above renaming.
1342         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Likewise.
1343
1344 2010-04-26  Eric Botcazou  <ebotcazou@adacore.com>
1345
1346         * gimplify.c (gimplify_cond_expr): Use THEN_ and ELSE_ local variables.
1347         Use VOID_TYPE_P for all void type tests.  Adjust TYPE variable instead
1348         of shadowing it.  Fix comments.
1349
1350 2010-04-26  Jan Hubicka  <jh@suse.cz>
1351
1352         * cgraph.c (cgraph_create_node): Set node frequency to normal.
1353         (cgraph_clone_node): Copy function frequency.
1354         * cgraph.h (node_frequency): New enum
1355         (struct cgraph_node): Add.
1356         * final.c (rest_of_clean_state): Update.
1357         * lto-cgraph.c (lto_output_node): Output node frequency.
1358         (input_overwrite_node): Input node frequency.
1359         * tre-ssa-loop-ivopts (computation_cost): Update.
1360         * lto-streamer-out.c (output_function): Do not output function
1361         frequency.
1362         * predict.c (maybe_hot_frequency_p): Update and handle functions
1363         executed once.
1364         (cgraph_maybe_hot_edge_p): Likewise; use cgraph frequency instead of
1365         attribute lookup.
1366         (probably_never_executed_bb_p, optimize_function_for_size_p): Update.
1367         (compute_function_frequency): Set noreturn functions to be executed
1368         once.
1369         (choose_function_section): Update.
1370         * lto-streamer-in.c (input_function): Do not input function frequency.
1371         * function.c (allocate_struct_function): Do not initialize function
1372         frequency.
1373         * function.h (function_frequency): Remove.
1374         (struct function): Remove function frequency.
1375         * ipa-profile.c (CGRAPH_NODE_FREQUENCY): Remove.
1376         (try_update): Update.
1377         * tree-inline.c (initialize_cfun): Do not update function frequency.
1378         * passes.c (pass_init_dump_file): Update.
1379         * i386.c (ix86_compute_frame_layout): Update.
1380         (ix86_pad_returns): Update.
1381
1382 2010-04-26  Jie Zhang  <jie@codesourcery.com>
1383
1384         PR tree-optimization/43833
1385         * tree-vrp.c (range_int_cst_p): New.
1386         (range_int_cst_singleton_p): New.
1387         (extract_range_from_binary_expr): Optimize BIT_AND_EXPR case
1388         when both operands are constants.  Use range_int_cst_p in
1389         BIT_IOR_EXPR case.
1390
1391 2010-04-26  Jan Hubicka  <jh@suse.cz>
1392
1393         * cgraphunit.c (cgraph_copy_node_for_versioning): Fix profile updating.
1394
1395 2010-04-26  Richard Guenther  <rguenther@suse.de>
1396
1397         PR lto/43080
1398         * gimple.c (gimple_decl_printable_name): Deal gracefully
1399         with a NULL DECL_NAME.
1400
1401 2010-04-26  Richard Guenther  <rguenther@suse.de>
1402
1403         PR lto/42425
1404         * tree.c (free_lang_data_in_type): Do not free TYPE_CONTEXT
1405         if emitting debug information and it is either a function
1406         or a namespace decl.
1407
1408 2010-04-26  Ira Rosen  <irar@il.ibm.com>
1409
1410         * tree-vectorizer.h (struct _stmt_vec_info): Add new field to
1411         determine if the statement is vectorizable, and a macro to access it.
1412         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
1413         Skip statements that can't be vectorized. If the analysis fails,
1414         mark the statement as unvectorizable if vectorizing basic block.
1415         (vect_compute_data_refs_alignment): Likewise.
1416         (vect_verify_datarefs_alignment): Skip statements marked as
1417         unvectorizable. Add print.
1418         (vect_analyze_group_access): Skip statements that can't be
1419         vectorized. If the analysis fails, mark the statement as
1420         unvectorizable if vectorizing basic block.
1421         (vect_analyze_data_ref_accesses, vect_analyze_data_refs): Likewise.
1422         * tree-vect-stmts.c (vectorizable_store): Fix the number of
1423         generated stmts for SLP.
1424         (new_stmt_vec_info): Initialize the new field.
1425         * tree-vect-slp.c (vect_build_slp_tree): Fail to vectorize
1426         statements marked as unvectorizable.
1427
1428 2010-04-25  Joseph Myers  <joseph@codesourcery.com>
1429
1430         * c-common.c (flag_isoc1x): New.
1431         (flag_isoc99): Update comment.
1432         * c-common.h (flag_isoc1x): New.
1433         (flag_isoc99): Update comment.
1434         * c-cppbuiltin.c (builtin_define_float_constants): Also define
1435         __<type>_DECIMAL_DIG__.
1436         * c-opts.c (set_std_c1x): New.
1437         (c_common_handle_option): Handle -std=c1x and -std=gnu1x.
1438         (set_std_c89, set_std_c99): Also set flag_isoc1x to 0.
1439         * c.opt (-std=c1x, -std=gnu1x): New options.
1440         * doc/cpp.texi: Mention -std=c1x.
1441         * doc/cppopts.texi (-std=c1x, -std=gnu1x): Document.
1442         * doc/extend.texi: Mention -std=c1x and -std=gnu1x.
1443         * doc/invoke.texi (-std=c1x, -std=gnu1x): Document.
1444         * doc/standards.texi: Mention C1X.
1445         * ginclude/float.h (FLT_DECIMAL_DIG, DBL_DECIMAL_DIG,
1446         LDBL_DECIMAL_DIG, FLT_HAS_SUBNORM, DBL_HAS_SUBNORM,
1447         LDBL_HAS_SUBNORM, FLT_TRUE_MIN, DBL_TRUE_MIN, LDBL_TRUE_MIN):
1448         Define for C1X.
1449
1450 2010-04-25  Uros Bizjak  <ubizjak@gmail.com>
1451
1452         * config/i386/gmon-sol2.c (_mcleanup): Change format string
1453         placeholder from 0x%x to %#x.
1454         * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Ditto.
1455         * config/i386/i386-interix.h (ASM_OUTPUT_ASCII): Ditto.
1456         * config/i386/att.h (ASM_OUTPUT_ASCII): Ditto.
1457         * config/i386/sysv4.h (ASM_OUTPUT_ASCII): Ditto.
1458         * config/i386/i386.c (ix86_target_string): Ditto.
1459         (output_pic_addr_const): Ditto.
1460         (print_operand): Ditto.
1461
1462 2010-04-25  Paolo Bonzini  <bonzini@gnu.org>
1463
1464         * combine.c (find_split_point): Add third argument.  Use it
1465         to find nested multiply-accumulate instructions.  Adjust calls.
1466         (try_combine): Adjust call to find_split_point.
1467
1468 2010-04-24  Gerald Pfeifer  <gerald@pfeifer.com>
1469
1470         * doc/contrib.texi (Contributors): Add Dodji Seketeli.
1471
1472 2010-04-24  Bernd Schmidt  <bernds@codesourcery.com>
1473
1474         PR tree-optimization/41442
1475         * fold-const.c (merge_truthop_with_opposite_arm): New function.
1476         (fold_binary_loc): Call it.
1477
1478 2010-04-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>
1479
1480         * toplev.c (general_init): Set default for fdiagnostics-show-option.
1481         * opts.c (common_handle_option): Allow disabling it.
1482         * common.opt (fdiagnostics-show-option): Add Var. Enabled by default.
1483
1484 2010-04-23  Eric Botcazou  <ebotcazou@adacore.com>
1485
1486         * expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: Only use conversion
1487         between modes if both types are integral.
1488
1489 2010-04-23  Richard Guenther  <rguenther@suse.de>
1490
1491         PR tree-optimization/43572
1492         * tree-tailcall.c (find_tail_calls): Allow PARM_DECL uses.
1493
1494 2010-04-23  Richard Guenther  <rguenther@suse.de>
1495
1496         PR lto/43455
1497         * tree-inline.c (tree_can_inline_p): Also check compatibility
1498         of return types.
1499
1500 2010-04-23  Martin Jambor  <mjambor@suse.cz>
1501
1502         PR tree-optimization/43846
1503         * tree-sra.c (struct access): New flag grp_assignment_read.
1504         (build_accesses_from_assign): Set grp_assignment_read.
1505         (sort_and_splice_var_accesses): Propagate grp_assignment_read.
1506         (enum mark_read_status): New type.
1507         (analyze_access_subtree): Propagate grp_assignment_read, create
1508         accesses also if both direct_read and root->grp_assignment_read.
1509
1510 2010-04-23  Martin Jambor  <mjambor@suse.cz>
1511
1512         PR middle-end/43835
1513         * tree-sra.c (ipa_sra_preliminary_function_checks): Check that the
1514         function does not have type attributes.
1515
1516 2010-04-23  Richard Guenther  <rguenther@suse.de>
1517
1518         PR lto/42653
1519         * tree.c (free_lang_data_in_decl): Do not reset DECL_CONTEXT
1520         of FUNCTION_DECLs.
1521
1522 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
1523
1524         * sese.h (create_if_region_on_edge): Remove.
1525
1526         * sese.c (create_if_region_on_edge): Make static.
1527
1528         * tree-inline.c: Do not include ggc.h.
1529
1530         * expr.c: Do not include ggc.h.
1531
1532         * Makefile.in (tree-inline.o, expr.o): Remove $(GGC_H) from
1533         dependencies.
1534
1535 2010-04-22  Kaz Kojima  <kkojima@gcc.gnu.org>
1536
1537         PR target/43744
1538         * config/sh/sh.c (find_barrier): Don't emit a constant pool
1539         in the middle of insns for casesi_worker_2.
1540
1541 2010-04-22  David Edelsohn  <edelsohn@gnu.org>
1542
1543         * config/rs6000/x-aix: Override LDFLAGS for all COMPILERS.
1544
1545 2010-04-22  Ira Rosen  <irar@il.ibm.com>
1546
1547         PR tree-optimization/43842
1548         * tree-vect-loop.c (vect_create_epilog_for_reduction): Handle
1549         loop unrolling in update of exit phis. Fix comment.
1550         * tree-vect-slp.c (vect_analyze_slp): Check that there are at
1551         least two reduction statements in the loop before starting SLP
1552         analysis.
1553
1554 2010-04-22  Nick Clifton  <nickc@redhat.com>
1555
1556         * config/stormy16/stormy16-lib2.c (__ucmpsi2): Fix thinko.
1557
1558 2010-04-22  Alexander Monakov  <amonakov@ispras.ru>
1559
1560         * tree-ssa-reassoc.c (eliminate_plus_minus_pair): Handle BIT_NOT_EXPR
1561         to simplify a + ~a.
1562
1563 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
1564
1565         * tree-parloops.c (loop_parallel_p): New argument
1566         parloop_obstack.  Pass it down.
1567         (parallelize_loops): New variable parloop_obstack.  Initialize it,
1568         pass it down, free it.
1569
1570         * tree-loop-linear.c (linear_transform_loops): Pass down
1571         lambda_obstack.
1572
1573         * tree-data-ref.h (lambda_compute_access_matrices): New argument
1574         of type struct obstack *.
1575
1576         * tree-data-ref.c (analyze_subscript_affine_affine): New variable
1577         scratch_obstack.  Initialize it, pass down, free it.
1578
1579         * lambda.h (lambda_loop_new): Remove.
1580         (lambda_matrix_new, lambda_matrix_inverse)
1581         (lambda_trans_matrix_new, lambda_trans_matrix_inverse): New
1582         argument of type struct obstack *.
1583
1584         * lambda-trans.c (lambda_trans_matrix_new): New argument
1585         lambda_obstack.  Pass it down, use obstack allocation for ret.
1586         (lambda_trans_matrix_inverse): New argument lambda_obstack.  Pass
1587         it down.
1588
1589         * lambda-mat.c (lambda_matrix_get_column)
1590         (lambda_matrix_project_to_null): Remove.
1591         (lambda_matrix_new): New argument lambda_obstack.  Use obstack
1592         allocation for mat.
1593         (lambda_matrix_inverse_hard, lambda_matrix_inverse): New argument
1594         lambda_obstack.
1595
1596         * lambda-code.c (lambda_loop_new): New function.
1597         (lambda_lattice_new, compute_nest_using_fourier_motzkin)
1598         (lambda_compute_auxillary_space, lambda_compute_target_space)
1599         (lambda_loopnest_transform, gcc_loop_to_lambda_loop)
1600         (lambda_loopnest_to_gcc_loopnest): Pass down lambda_obstack.
1601         (build_access_matrix): New argument lambda_obstack.  Use obstack
1602         allocation for am.
1603         (lambda_compute_step_signs, lambda_compute_access_matrices): New
1604         argument lambda_obstack.  Pass it down.
1605
1606 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
1607
1608         * optabs.h (expand_widening_mult): Declare.
1609
1610 2010-04-22  Richard Guenther  <rguenther@suse.de>
1611
1612         PR tree-optimization/43845
1613         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Properly
1614         lookup the CALL_EXPR function and arguments.
1615
1616 2010-04-22  Nick Clifton  <nickc@redhat.com>
1617
1618         * config/stormy16/stormy16.c
1619         (xstormy16_asm_output_aligned_common): Handle a NULL decl parameter.
1620         * config/stormy16/stormy16.h: Tidy up formatting.
1621         (DONT_USE_BUILTIN_SETJMP): Remove definition.
1622         * config/stormy16/stormy16.c (cbranchsi4): Delete pattern.
1623         (ineqbranchsi): Delete pattern.
1624         * config/stormy16/stormy16-lib2-ucmpsi2.c: New file.
1625         * config/stormy16/stormy16-lib2.c (__ucmpsi2): New function.
1626         * config/stormy16/t-stormy16 (LIB2FUNCS_EXTRA): Add
1627         stormy16-lib2-ucmpsi2.c.
1628
1629 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
1630
1631         * ifcvt.c (dead_or_predicable): Use df_simulate_find_defs and
1632         df_simulate_find_noclobber_defs as appropriate.  Keep track of an
1633         extra set merge_set_noclobber, and use it to relax the final test
1634         slightly.
1635         * df.h (df_simulate_find_noclobber_defs): Declare.
1636         * df-problems.c (df_simulate_find_defs): Don't ignore partial or
1637         conditional defs.
1638         (df_simulate_find_noclobber_defs): New function.
1639
1640 2010-04-22  Uros Bizjak  <ubizjak@gmail.com>
1641
1642         * config/i386/i386.md: Use {} around multi-line preparation statements.
1643
1644 2010-04-22  Laurynas Biveinis  <laurynas.biveinis@gmail.com>
1645
1646         * c-tree.h (push_init_level, pop_init_level, set_init_index)
1647         (process_init_element): New argument of type struct obstack *.
1648
1649         * c-typeck.c (push_init_level, pop_init_level, set_designator)
1650         (set_init_index, set_init_label, set_nonincremental_init)
1651         (set_nonincremental_init_from_string, find_init_member)
1652         (output_init_element, output_pending_init_elements)
1653         (process_init_element): New argument braced_init_obstack.  Pass it
1654         down.
1655         (push_range_stack, add_pending_init): New argument
1656         braced_init_obstack.  Use obstack allocation.
1657
1658         * c-parser.c (c_parser_initelt, c_parser_initval): New argument
1659         braced_init_obstack.  Pass it down.
1660         (c_parser_braced_init): New variables ret, braced_init_obstack.
1661         Initialize obstack, pass it down and finally free it.
1662
1663 2010-04-22  Bernd Schmidt  <bernds@codesourcery.com>
1664
1665         PR middle-end/29274
1666         * tree-pass.h (pass_optimize_widening_mul): Declare.
1667         * tree-ssa-math-opts.c (execute_optimize_widening_mul,
1668         gate_optimize_widening_mul): New static functions.
1669         (pass_optimize_widening_mul): New.
1670         * expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: New case.
1671         <case MULT_EXPR>: Remove support for widening multiplies.
1672         * tree.def (WIDEN_MULT_EXPR): Tweak comment.
1673         * cfgexpand.c (expand_debug_expr) <case WIDEN_MULT_EXPR>: Use
1674         simplify_gen_unary rather than directly building extensions.
1675         * tree-cfg.c (verify_gimple_assign_binary): Add tests for
1676         WIDEN_MULT_EXPR.
1677         * expmed.c (expand_widening_mult): New function.
1678         * passes.c (init_optimization_passes): Add pass_optimize_widening_mul.
1679
1680 2010-04-21  Jan Hubicka  <jh@suse.cz>
1681
1682         * timevar.def (TV_WHOPR_WPA_FIXUP): Remove.
1683         * lto-section-in.c (lto_section_name): Remove wpa_fixup.
1684         * lto-wpa-fixup.c: Remove.
1685         * Makefile.in (lto-wpa-fixup.o): Remove.
1686         * passes.c (init_optimization_passes): Remove pass_ipa_lto_wpa_fixup.
1687         (execute_all_ipa_transforms): Set cgraph_state to CGRAPH_STATE_IPA_SSA.
1688         * lto-streamer.c (lto_get_section_name): Remove wpa_fixup section.
1689
1690 2010-04-21  Jan Hubicka  <jh@suse.cz>
1691
1692         * tree-pass.h (ipa_opt_pass_d): Rename function_read_summary;
1693         add write_optimization_summary, read_optimization_summary.
1694         (ipa_write_summaries_of_cgraph_node_set): Remove.
1695         (ipa_write_optimization_summaries): Declare.
1696         (ipa_read_optimization_summaries): Declare.
1697         * ipa-cp.c (pass_ipa_cp): Update.
1698         * ipa-reference.c (pass_ipa_reference): Update.
1699         * ipa-pure-const.c (pass_ipa_pure_const): Update.
1700         * lto-streamer-out.c (pass_ipa_lto_gimple, pass_ipa_lto_finish):
1701         Update.
1702         * ipa-inline.c (pass_ipa_inline): Update.
1703         * ipa.c (pass_ipa_whole_program): Update.
1704         * lto-wpa-fixup.c (pass_ipa_lto_wpa_fixup): Update.
1705         * passes.c (ipa_write_summaries_1): Do not test wpa.
1706         (ipa_write_optimization_summaries_1): New.
1707         (ipa_write_optimization_summaries): New.
1708         (ipa_read_summaries): Do not test ltrans.
1709         (ipa_read_optimization_summaries_1): New.
1710         (ipa_read_optimization_summaries): New.
1711
1712 2010-04-21  Jan Hubicka  <jh@suse.cz>
1713
1714         * lto-cgraph.c (lto_output_node): Do not output comdat groups
1715         for boundary nodes.
1716         (output_cgraph): Do not arrange comdat groups for boundary nodes.
1717
1718 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
1719
1720         PR debug/40040
1721         * dwarf2out.c (add_name_and_src_coords_attributes): Add
1722         DW_AT_{,MIPS_}linkage_name even for Fortran decls.
1723
1724 2010-04-21  Jan Hubicka  <jh@suse.cz>
1725
1726         * ipa-prop.c (ipa_edge_removal_hook): Check for bounds.
1727
1728 2010-04-21  Jan Hubicka  <jh@suse.cz>
1729
1730         * varpool.c (decide_is_variable_needed): Variable is always needed
1731         during ltrans.
1732
1733 2010-04-21  Jan Hubicka  <jh@suse.cz>
1734
1735         * opts.c (decode_options): Enable pure-const pass for whopr.
1736
1737 2010-04-21  Jan Hubicka  <jh@suse.cz>
1738
1739         * cgraph.c (dump_cgraph_node): Dump also assembler name.
1740         * ipa-inline.c (cgraph_decide_inlining_of_small_functions): Do not ice
1741         at WPA dumping.
1742         (cgraph_decide_inlining): Do not expect callee to be removed in all
1743         cases.
1744
1745 2010-04-21  Eric B. Weddington  <eric.weddington@atmel.com>
1746
1747         * config/avr/avr-devices.c (avr_mcu_types): Add missing comma.
1748
1749 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
1750
1751         * config/i386/i386.md (x86_shrd): Add athlon_decode and
1752         amdfam10_decode attributes.
1753
1754 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
1755
1756         PR middle-end/43570
1757         * omp-low.c (scan_sharing_clauses): Don't scan_omp_op
1758         OMP_CLAUSE_DECL for OMP_CLAUSE_COPYPRIVATE.
1759         (lower_copyprivate_clauses): Use private var in outer
1760         context instead of original var.  Make sure the types
1761         are correct for VLAs.
1762
1763 2010-04-21  Richard Guenther  <rguenther@suse.de>
1764
1765         * tree-ssa-structalias.c (do_ds_constraint): Avoid escaping
1766         to non-pointer objects.
1767
1768 2010-04-21  Jakub Jelinek  <jakub@redhat.com>
1769
1770         * dwarf2out.c (add_var_loc_to_decl): Add LABEL argument.  Drop
1771         last chain entry if it starts with the still current label.
1772         (add_location_or_const_value_attribute): Check that
1773         loc_list->first->next is NULL instead of comparing ->first with ->last.
1774         (dwarf2out_var_location): Pass last_label resp. last_postcall_label
1775         to add_var_loc_to_decl.
1776
1777         * dwarf2out.c (output_call_frame_info): For dw_cie_version
1778         >= 4 add also address size and segment size fields into CIE header.
1779
1780         * unwind-dw2.c (extract_cie_info): Handle CIE version 4, as
1781         long as address size is the same as sizeof (void *) and
1782         segment size is 0.
1783         * unwind-dw2-fde.c (get_cie_encoding): Likewise.  If
1784         address size or segment size is unexpected, return DW_EH_PE_omit.
1785         (classify_object_over_fdes): If get_cie_encoding returned
1786         DW_EH_PE_omit, return -1.
1787         (init_object): If classify_object_over_fdes returned -1,
1788         pretend there were no FDEs at all.
1789
1790 2010-04-21  Uros Bizjak  <ubizjak@gmail.com>
1791
1792         * config/i386/i386.md (bswap<mode>2): Macroize expander from
1793         bswap{si,di}2 using SWI48 mode iterator.
1794         (*bswap<mode>2_movbe): Macroize insn from *bswap{si,di}_movbe using
1795         SWI48 mode iterator.  Set type attribute of bswap insn to bitmanip,
1796         set modrm attribute of bswap insn to 0 and remove length attribute.
1797         (*bswap<mode>2_1): Macroize insn from *bswap{si,di}_1 using SWI48 mode
1798         iterator.  Set type attribute to bitmanip, set modrm attribute to 0,
1799         set mode attribute to <MODE> and remove length attribute.
1800
1801 2010-04-20  James E. Wilson  <wilson@codesourcery.com>
1802
1803         PR rtl-optimization/43520
1804         * ira-lives.c (ira_implicitly_set_insn_hard_regs): Exclude classes with
1805         zero available registers.
1806
1807 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1808
1809         * builtins.c (fold_builtin_cproj): Fold more cases.
1810
1811 2010-04-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1812
1813         * builtins.c (build_complex_cproj, fold_builtin_cproj): New.
1814         (fold_builtin_1): Fold builtin cproj.
1815         * builtins.def (BUILT_IN_CPROJ, BUILT_IN_CPROJF, BUILT_IN_CPROJL):
1816         Use ATTR_CONST_NOTHROW_LIST.
1817
1818 2010-04-20  Uros Bizjak  <ubizjak@gmail.com>
1819
1820         * config/i386/i386.md (ffs<mode>2): Macroize expander from ffs_cmove
1821         and ffsdi2 using SWI48 mode iterator.  Expand SImode insn through
1822         ffsi2_no_cmove for !TARGET_CMOVE.
1823         (ffssi2_no_cmove): Rename from *ffs_no_cmove.  Make public.
1824         (ffssi2): Remove expander.
1825         (*ffs<mode>_1): Macroize insn from *ffs{si,di} using SWI48
1826         mode iterator.
1827         (ctz<mode>2): Ditto from ctz{si,di}2.
1828         (clz<mode>2): Macroize expander from ctz{hi,si,di}2 using SWI248
1829         mode iterator.
1830         (clz<mode>2_abm): Macroize insn from clz{hi,si,di}2_abm using SWI248
1831         mode iterator.
1832
1833 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
1834
1835         * dwarf2out.c (AT_linkage_name): Define.
1836         (clone_as_declaration): Handle DW_AT_linkage_name.
1837         (add_name_and_src_coords_attributes): Use AT_linkage_name instead
1838         of DW_AT_MIPS_linkage_name.
1839         (move_linkage_attr): Likewise.
1840         (dwarf2out_finish): Likewise.
1841
1842 2010-04-20  Xinliang David Li  <davidxl@gcc.gnu.org>
1843
1844         PR middle-end/41952
1845         * fold-const.c (fold_comparison): New folding rule.
1846
1847 2010-04-20  Anatoly Sokolov  <aesok@post.ru>
1848
1849         * double-int.h (double_int_setbit): Declare.
1850         * double-int.c (double_int_setbit): New function.
1851         * rtl.h (immed_double_int_const): Declare.
1852         * emit-rtl.c (immed_double_int_const): New function.
1853         * builtins.c (expand_builtin_signbit): Clean up, use double_int_*
1854         and immed_double_int_const functions.
1855         * optabs.c (expand_absneg_bit, expand_copysign_absneg,
1856         expand_copysign_bit):  (Ditto.).
1857         * simplify-rtx.c (simplify_binary_operation_1): (Ditto.).
1858         * tree-ssa-address.c (addr_for_mem_ref): (Ditto.).
1859         * dojump.c (prefer_and_bit_test): (Ditto.).
1860         * expr.c (convert_modes, reduce_to_bit_field_precision,
1861         const_vector_from_tree): (Ditto.).
1862         * expmed.c (mask_rtx, lshift_value): (Ditto.).
1863
1864 2010-04-20  Jan Hubicka  <jh@suse.cz>
1865
1866         * cgraph.c (cgraph_remove_node): Kill bodies in other partitoin.
1867         (dump_cgraph_node): Dump new flags.
1868         * cgraph.h (struct cgraph_node): Add flags
1869         reachable_from_other_partition and in_other_partition.
1870         (cgraph_can_remove_if_no_direct_calls_p): Functions used by
1871         other partition can not be removed.
1872         * cgraphunit.c (cgraph_mark_functions_to_output): Functions used by
1873         the other partition must be output; silence sanity checking on
1874         leaking functions bodies from other paritition.
1875         * lto-cgraph.c (reachable_from_other_partition_p): New function.
1876         (lto_output_node): Output new flags; do not sanity check that inline
1877         clones are output; drop lto_forced_extern_inline_p code; do not mock
1878         visibility flags at partition boundaries.
1879         (add_node_to): New function.
1880         (output_cgraph): Use it to sort functions so masters appear before
1881         clones.
1882         (input_overwrite_node): Input new flags.
1883         * passes.c (ipa_write_summaries): Do not call
1884         lto_new_extern_inline_states.
1885         * lto-section-out.c (forced_extern_inline,
1886         lto_new_extern_inline_states lto_delete_extern_inline_states,
1887         lto_force_functions_extern_inline, lto_forced_extern_inline_p): Kill.
1888         * lto-streamer.h (lto_new_extern_inline_states,
1889         * lto_delete_extern_inline_states, lto_force_functions_extern_inline,
1890         lto_forced_extern_inline_p): Kill.
1891
1892 2010-04-20  Richard Guenther  <rguenther@suse.de>
1893
1894         * tree-ssa-structalias.c (do_sd_constraint): Add edges only
1895         from vars that can have pointers.
1896         (process_constraint): Dump useless constraints.
1897
1898 2010-04-20  Richard Guenther  <rguenther@suse.de>
1899
1900         * tree-ssa-structalias.c (do_structure_copy): Properly handle DEREF.
1901         (dump_sa_points_to_info): Remove asserts.
1902         (init_base_vars): nothing_id isn't an escape point nor does it
1903         have pointers.
1904
1905 2010-04-20  Jakub Jelinek  <jakub@redhat.com>
1906
1907         * tree.h (TYPE_REF_IS_RVALUE): Define.
1908         * dwarf2out.c (attr_checksum_ordered, is_type_die, is_comdat_die,
1909         should_move_die_to_comdat, prune_unused_types_walk): Handle
1910         DW_TAG_rvalue_reference_type like DW_TAG_reference_type.
1911         (modified_type_die, gen_reference_type_die): Emit
1912         DW_TAG_rvalue_reference_type instead of DW_TAG_reference_type
1913         if TYPE_REF_IS_RVALUE and -gdwarf-4.
1914
1915 2010-04-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
1916
1917         PR target/43635
1918         * config/s390/s390.c (s390_emit_call): Turn direct into indirect
1919         calls for -fpic -m31 if they have been sibcall optimized.
1920
1921 2010-04-19  James E. Wilson  <wilson@codesourcery.com>
1922
1923         * config/ia64/ia64.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Make
1924         ar.lc fixed and call-used.
1925
1926         * config/ia64/ia64.c (TARGET_INVALID_WITHIN_DOLOOP): Define.
1927
1928 2010-04-19  Jan Hubicka  <jh@suse.cz>
1929
1930         * opts.c (decode_options): Disable whpr incompatible passes.
1931         * lto/lto.c (lto_1_to_1_map): Skip clones.
1932         (read_cgraph_and_symbols): Do not mark everything as needed.
1933         (do_whole_program_analysis): Do map only after optimizing;
1934         set proper cgraph_state; use passmanager.
1935
1936 2010-04-19  DJ Delorie  <dj@redhat.com>
1937
1938         * cfgexpand.c (expand_debug_expr): Check for mismatched modes in
1939         POINTER_PLUS_EXPR and fix them.
1940
1941 2010-04-19  Eric B. Weddington  <eric.weddington@atmel.com>
1942
1943         * config/avr/avr-devices.c (avr_mcu_types): Add support for new
1944         devices atmega644pa, attiny2313a, attiny24a, attiny261a, attiny4313,
1945         attiny44a, attiny861a, atmega16a, atmega168a, atmega164a, atmega165a,
1946         atmega169a, atmega169pa, atmega16hva2, atmega324a, atmega324pa,
1947         atmega325a, atmega3250a, atmega328, atmega329a, atmega329pa,
1948         atmega3290a, atmega48a, atmega644a, atmega645a, atmega645p,
1949         atmega6450a, atmega6450p, atmega649a, atmega649p, atmega6490a,
1950         atmega6490p, atmega64hve, atmega88a, atmega88pa, attiny461a, attiny84a,
1951         m3000. Remove support for devices atmega8m1, atmega8c1, atmega16c1,
1952         atmega4hvd, atmega8hvd, attiny327, m3000f, m3000s, m3001b.
1953         * config/avr/t-avr.c (MULTILIB_MATCHES): Same.
1954
1955 2010-04-19  Eric Botcazou  <ebotcazou@adacore.com>
1956
1957         * ifcvt.c (noce_try_cmove_arith): Fix long lines.
1958         (check_cond_move_block): Likewise.
1959         (cond_move_process_if_block): Likewise.
1960         (noce_find_if_block): Improve formatting.
1961         (find_if_header): Pass 0 to memset and tweak conditions.
1962         (cond_exec_find_if_block): Fix long lines and tweak conditions.
1963
1964 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
1965
1966         * dwarf2out.c (lower_bound_default): For DW_LANG_Python return 0
1967         for -gdwarf-4.
1968
1969         PR middle-end/43337
1970         * tree-nested.c (convert_nonlocal_omp_clauses): OMP_CLAUSE_PRIVATE
1971         with non-local decl doesn't need chain.
1972
1973 2010-04-19  Vladimir Makarov  <vmakarov@redhat.com>
1974
1975         * ira-color.c (allocno_reload_assign): Avoid accumulating
1976         reload registers in ALLOCNO_TOTAL_CONFLICT_HARD_REGS.
1977
1978 2010-04-19  Martin Jambor  <mjambor@suse.cz>
1979
1980         * gimple.h (create_tmp_reg): Declare.
1981         * gimplify.c (create_tmp_reg): New function.
1982         (gimplify_return_expr): Use create_tmp_reg.
1983         (gimplify_omp_atomic): Likewise.
1984         (gimple_regimplify_operands): Likewise.
1985         * tree-dfa.c (make_rename_temp): Likewise.
1986         * tree-predcom.c (predcom_tmp_var): Likewise.
1987         (reassociate_to_the_same_stmt): Likewise.
1988         * tree-sra.c (replace_uses_with_default_def_ssa_name): Likewise.
1989         (get_replaced_param_substitute): Likewise.
1990         * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise.
1991         * tree-ssa-phiopt.c (cond_store_replacement): Likewise.
1992         * tree-ssa-pre.c (get_representative_for): Likewise.
1993         (create_expression_by_pieces): Likewise.
1994         * tree-tailcall.c (adjust_return_value_with_ops): Likewise.
1995         (create_tailcall_accumulator): Likewise.
1996
1997 2010-04-19  Martin Jambor  <mjambor@suse.cz>
1998
1999         * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Update
2000         new_stmt.
2001         (cgraph_materialize_all_clones): Assert !need_ssa_update_p.
2002
2003 2010-04-19  Richard Guenther  <rguenther@suse.de>
2004
2005         PR tree-optimization/43796
2006         * tree-vrp.c (adjust_range_with_scev): Lookup init and step
2007         from SCEV in the lattice.
2008         (vrp_visit_phi_node): Dump change.
2009
2010 2010-04-19  Richard Guenther  <rguenther@suse.de>
2011
2012         * configure.ac: Fix quoting around elf_getshstrndx ABI check.
2013         * configure: Re-generated.
2014
2015 2010-04-19  Richard Guenther  <rguenther@suse.de>
2016
2017         PR tree-optimization/43783
2018         * tree-ssa-pre.c (create_component_ref_by_pieces_1): Drop
2019         constant ARRAY_REF operands two and three if possible.
2020
2021 2010-04-19  Uros Bizjak  <ubizjak@gmail.com>
2022
2023         PR target/43766
2024         * config/i386/i386.c (ix86_decompose_address): Handle ASHIFT addends.
2025
2026 2010-04-19  Jie Zhang  <jie@codesourcery.com>
2027
2028         PR target/43662
2029         * reginfo.c (reinit_regs): Set caller_save_initialized_p to false.
2030
2031 2010-04-19  Ira Rosen  <irar@il.ibm.com>
2032
2033         PR tree-optimization/37027
2034         * tree-vectorizer.h (struct _loop_vec_info): Add new field reductions
2035         and macro to access it.
2036         (vectorizable_reduction): Add argument.
2037         (vect_get_slp_defs): Likewise.
2038         * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Collect reduction
2039         statements for possible use in SLP.
2040         (new_loop_vec_info): Initialize LOOP_VINFO_REDUCTIONS.
2041         (destroy_loop_vec_info): Free LOOP_VINFO_REDUCTIONS.
2042         (vect_create_epilog_for_reduction): Handle SLP. Modify documentation,
2043         add new argument.
2044         (vectorizable_reduction): Likewise.
2045         * tree-vect-stmts.c (vect_get_vec_defs): Update call to
2046         vect_get_slp_defs.
2047         (vectorizable_type_demotion, vectorizable_type_promotion,
2048         vectorizable_store): Likewise.
2049         (vect_analyze_stmt): Update call to vectorizable_reduction.
2050         (vect_transform_stmt): Likewise.
2051         * tree-vect-slp.c (vect_get_and_check_slp_defs): Handle reduction.
2052         (vect_build_slp_tree): Fix indentation. Check that there are no loads
2053         from different interleaving chains in same node.
2054         (vect_slp_rearrange_stmts): New function.
2055         (vect_supported_load_permutation_p): Allow load permutations for
2056         reductions. Call vect_slp_rearrange_stmts() to rearrange statements
2057         inside SLP nodes if necessary.
2058         (vect_analyze_slp_instance): Handle reductions.
2059         (vect_analyze_slp): Try to build SLP instances originating from groups
2060         of reductions.
2061         (vect_detect_hybrid_slp_stmts): Skip reduction statements.
2062         (vect_get_constant_vectors): Create initial vectors for reductions
2063         according to reduction code. Add new argument.
2064         (vect_get_slp_defs): Add new argument, pass it to
2065         vect_get_constant_vectors.
2066         (vect_schedule_slp_instance): Remove SLP tree root statements.
2067
2068 2010-04-19  Jakub Jelinek  <jakub@redhat.com>
2069
2070         * tree.h (ENUM_IS_SCOPED): Define.
2071         * dwarf2out.c (gen_enumeration_type_die): Add DW_AT_enum_class
2072         for ENUM_IS_SCOPED enums.
2073
2074 2010-04-18  Eric Botcazou  <ebotcazou@adacore.com>
2075
2076         * fold-const.c (fold_comparison): Use ssizetype.
2077         * gimple-fold.c (maybe_fold_offset_to_array_ref): Likewise.
2078         * ipa-prop.c (ipa_modify_call_arguments): Use sizetype.
2079         * tree-loop-distribution.c (build_size_arg_loc): Likewise.
2080         * tree-object-size.c (compute_object_sizes): Use size_type_node.
2081
2082         * tree.h (initialize_sizetypes): Remove parameter.
2083         (build_common_tree_nodes): Remove second parameter.
2084         * stor-layout.c (initialize_sizetypes): Remove parameter.
2085         Always create an unsigned type.
2086         (set_sizetype): Assert that the passed type is unsigned and simplify.
2087         * tree.c (build_common_tree_nodes): Remove second parameter.
2088         Adjust call to initialize_sizetypes.
2089         * c-decl.c (c_init_decl_processing): Remove second argument in call to
2090         build_common_tree_nodes.
2091
2092 2010-04-18  Matthias Klose  <doko@ubuntu.com>
2093
2094         * gcc.c (main): Search for liblto_plugin.so with mode R_OK.
2095
2096 2010-04-18  Ira Rosen  <irar@il.ibm.com>
2097
2098         PR tree-optimization/43771
2099         * tree-vect-slp.c (vect_supported_load_permutation_p): Check that
2100         load permutation doesn't have gaps.
2101
2102 2010-04-18  Jan Hubicka  <jh@suse.cz>
2103
2104         * i386.md (UNSPEC_SSE_PROLOGUE_SAVE_LOW): New.
2105         (sse_prologue_save_insn expander): Use new pattern.
2106         (sse_prologue_save_insn1): New pattern and splitter.
2107         (sse_prologue_save_insn): Update to deal also with 64bit aligned
2108         blocks.
2109         * i386.c (setup_incoming_varargs_64): Do not compute jump
2110         destination here.
2111         (ix86_gimplify_va_arg): Update alignment needed.
2112         (ix86_local_alignment): Do not align all local arrays to 128bit.
2113
2114 2010-04-17  Jan Hubicka  <jh@suse.cz>
2115
2116         * ipa-inline.c (cgraph_early_inlining): Handle flattening too.
2117
2118 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2119
2120         * arm.md (negdi2): Remove redundant code to force values into a
2121         register.
2122
2123 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2124
2125         * arm/bpabi.S: Add EABI alignment attributes to objects.
2126         * arm/bpabi-v6m.S: Likewise.
2127         * arm/crti.asm: Likewise.
2128         * arm/crtn.asm: Likewise.
2129         * arm/lib1funcs.asm: Likewise.
2130         * arm/libunwind.S: Likewise.
2131
2132 2010-04-17  Richard Earnshaw  <rearnsha@arm.com>
2133
2134         * arm-protos.h (tune_params): New structure.
2135         * arm.c (current_tune): New variable.
2136         (arm_constant_limit): Delete.
2137         (struct processors): Add pointer to the tune parameters.
2138         (arm_slowmul_tune): New tuning option.
2139         (arm_fastmul_tune, arm_xscale_tune, arm_9e_tune): Likewise.
2140         (all_cores): Adjust to pick up the tuning model.
2141         (arm_constant_limit): New function.
2142         (arm_override_options): Select the appropriate tuning model.  Delete
2143         initialization of arm_const_limit.
2144         (arm_split_constant): Use the new constant-limit model.
2145         (arm_rtx_costs): Pick up the current tuning model.
2146         * arm.md (is_strongarm, is_xscale): Delete.
2147         * arm-generic.md (load_ldsched_x, load_ldsched): Test explicitly
2148         for Xscale variant architectures.
2149         (mult_ldsched_strongarm, mult_ldsched): Similarly for StrongARM.
2150
2151 2010-04-17  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2152
2153         * config/arm/arm.c (arm_gen_constant): Remove unused variable
2154         can_shift.
2155         (arm_rtx_costs_1): Remove unused variable extra_cost.
2156         (arm_unwind_emit_set): Use variable offset.
2157         (thumb1_output_casesi): Remove unused variable flags.
2158
2159 2010-04-16  Jeff Law  <law@redhat.com>
2160
2161         * ira-color.c (ira_reassign_pseudos): Collect and sort all the pseudos
2162         needing assignment rather than doing a two-phase assignment.  Remove
2163         unused variable 'm'.
2164
2165 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2166
2167         PR bootstrap/43767
2168         * alias.c (memrefs_conflict_p): Don't crash if CSELIB_VAL_PTR is NULL.
2169
2170 2010-04-16  Doug Kwan  <dougkwan@google.com>
2171
2172         * tree-ssa-reassoc.c (struct operand_entry): Add new field ID.
2173         (next_operand_entry_id): New static variable.
2174         (sort_by_operand_rank): Stabilize qsort comparator by using unique IDs.
2175         (add_to_ops_vec): Assigned unique ID to operand entry.
2176         (struct oecount_s): New field ID.
2177         (oecount_cmp): Stabilize qsort comparotor by using unique IDs.
2178         (undistribute_ops_list): Assign unique IDs to oecounts.
2179         (init_reassoc): reset next_operand_entry_id.
2180
2181 2010-04-16  Doug Kwan  <dougkwan@google.com>
2182
2183         * config/i386/i386.md (*jcc_bt<mode>): Fix build breakage by adding
2184         missing left parenthesis.
2185
2186 2010-04-16  Uros Bizjak  <ubizjak@gmail.com>
2187
2188         * config/i386/i386.md (*bt<mode>): Macroize insn from *btsi and
2189         *btdi_rex64 using SWI48 mode iterator.
2190         (*jcc_bt<mode>): Ditto from *jcc_btsi and *jcc_btdi_rex64.
2191         (*jcc_bt<mode>_mask): Ditto from *jcc_btsi_mask and
2192         *jcc_btdi_mask_rex64.
2193
2194 2010-04-16  Anatoly Sokolov  <aesok@post.ru>
2195
2196         * double-int.h (tree_to_double_int): Convert to macro.
2197         * double-int.c (tree_to_double_int): Remove.
2198
2199 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2200
2201         PR debug/43762
2202         * dwarf2out.c (add_bound_info): Always call loc_list_from_tree
2203         with want_address 2 and in case a single element list might be
2204         possible, call it again with want_address 0.
2205
2206 2010-04-12  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
2207
2208         * config/h8300/h8300.c (print_operand) : Modify case 'V' and
2209         case 'W' print operands for HI mode.
2210         * config/h8300/h8300.h (Y0, Y2) : New constraints.
2211         * config/h8300/h8300.md (bclrqi_msx, bclrhi_msx): New patterns
2212         (bsetqi_msx, bsethi_msx, bnotqi_msx, bnothi_msx): Likewise.
2213         * config/h8300/predicate.md (bit_register_indirect_operand): New.
2214
2215         * config/h8300/h8300.h (OK_FOR_U): Support 'U' constraint for H8300SX.
2216
2217         * config/h8300/h8300.md (movqi_h8sx, movhi_h8sx, movsi_h8sx,
2218         cmphi_h8300hs_znvc, cmpsi, addhi3_h8sx) : Emit instructions in
2219         #xx:3 and #xx:4 mode.
2220
2221         * config/h8300/h8300.md (inverted load with HImode dest): Add
2222         support for H8300SX.
2223
2224         * config/h8300/predicate.md (bit_operand): Allow immediate values that
2225         satisfy 'U' constraint.
2226
2227 2010-04-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2228
2229         * configure.ac: Check for elf_getshdrstrndx or elf_getshstrndx flavor.
2230         * configure: Regenerate.
2231         * config.in: Regenerate.
2232         * doc/install.texi (Prerequisites): Document that Solaris 2 libelf
2233         works.
2234
2235 2010-04-16  Richard Guenther  <rguenther@suse.de>
2236
2237         * tree.h (struct tree_decl_minimal): Move pt_uid ...
2238         (struct tree_decl_common): ... here.
2239         (DECL_PT_UID): Adjust.
2240         (SET_DECL_PT_UID): Likewise.
2241         (DECL_PT_UID_SET_P): Likewise.
2242
2243 2010-04-16  Richard Guenther  <rguenther@suse.de>
2244
2245         PR tree-optimization/43572
2246         * tree-ssa-alias.h (call_may_clobber_ref_p): Declare.
2247         * tree-ssa-alias.c (call_may_clobber_ref_p): Export.
2248         * tree-flow.h (is_call_clobbered): Remove.
2249         * tree-flow-inline.h (is_call_clobbered): Likewise.
2250         * tree-dfa.c (dump_variable): Do not dump call clobber state.
2251         * tree-nrv.c (dest_safe_for_nrv_p): Use the alias oracle.
2252         (execute_return_slot_opt): Adjust.
2253         * tree-tailcall.c (suitable_for_tail_opt_p): Remove
2254         check for call clobbered vars here.
2255         (find_tail_calls): Move tailcall verification to the
2256         proper place.
2257
2258 2010-04-16  Diego Novillo  <dnovillo@google.com>
2259
2260         * doc/invoke.texi: Explain how are unrecognized -Wno- warnings handled.
2261
2262 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
2263
2264         PR target/40603
2265         * config/arm/arm.md (cbranchqi4): New pattern.
2266         * config/arm/predicates.md (const0_operand,
2267         cbranchqi4_comparison_operator): New predicates.
2268
2269 2010-04-16  Richard Guenther  <rguenther@suse.de>
2270
2271         * gimple-pretty-print.c (dump_gimple_phi): Dump alias info.
2272         (dump_gimple_stmt): Likewise.
2273
2274 2010-04-16  Bernd Schmidt  <bernds@codesourcery.com>
2275
2276         * recog.h (struct recog_data): New field is_operator.
2277         (struct insn_operand_data): New field is_operator.
2278         * recog.c (extract_insn): Set recog_data.is_operator.
2279         * genoutput.c (output_operand_data): Emit code to set the
2280         is_operator field.
2281         * reload.c (find_reloads): Use it rather than testing for an
2282         empty constraint string.
2283
2284         PR target/41514
2285         * config/arm/arm.md (cbranchsi4_insn): Renamed from "*cbranchsi4_insn".
2286         If the previous insn is a cbranchsi4_insn with the same arguments,
2287         omit the compare instruction.
2288
2289         * config/arm/arm.md (addsi3_cbranch): If destination is a high
2290         register, inputs must be low registers and we need a low register
2291         scratch.  Handle alternative 2 like alternative 3.
2292
2293 2010-04-16  Jakub Jelinek  <jakub@redhat.com>
2294
2295         * alias.c (memrefs_conflict_p): If x and y are the same VALUE,
2296         don't call get_addr on both.  If one expression is a VALUE and
2297         the other a REG, check VALUE's locs if the REG isn't among them.
2298
2299 2010-04-16  Christian Bruel  <christian.bruel@st.com>
2300
2301         * config/sh/sh.h (sh_frame_pointer_required): New function.
2302         * config/sh/sh.h (TARGET_FRAME_POINTER_REQUIRED): New macro.
2303         (flag_omit_frame_pointer) Set.
2304         (MASK_ACCUMULATE_OUTGOING_ARGS) Define and Set.
2305         (rounded_frame_size): Adjust size with outgoing_args_size.
2306         (sh_set_return_address): Must return from stack pointer.
2307         * gcc/config/sh/sh.h (CAN_DEBUG_WITHOUT_FP): Define.
2308         (SUBTARGET_FRAME_POINTER_REQUIRED): Define.
2309         (ACCUMULATE_OUTGOING_ARGS): Define.
2310         * doc/invoke.texi (maccumulate-outgoing-args): Document for SH.
2311         * gcc/config/sh/sh.opt: (maccumulate-outgoing-args): New option.
2312
2313 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
2314
2315         PR target/43471
2316         * config/sh/sh.c (sh_legitimize_reload_address): Use
2317         MAYBE_BASE_REGISTER_RTX_P instead of BASE_REGISTER_RTX_P.
2318         Remove a unneeded check for offset_base.
2319
2320 2010-04-15  H.J. Lu  <hongjiu.lu@intel.com>
2321
2322         * configure: Regenerated.
2323
2324 2010-04-15  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2325
2326         * config/s390/s390.c (s390_call_save_register_used): Switch back
2327         to HARD_REGNO_NREGS.
2328
2329 2010-04-15  Richard Guenther  <rguenther@suse.de>
2330
2331         * alias.c (alias_set_subset_of): Handle alias-set zero
2332         child properly.
2333
2334 2010-04-15  Mark Shinwell  <shinwell@codesourcery.com>
2335             Julian Brown  <julian@codesourcery.com>
2336
2337         * config/arm/thumb2.md (thumb2_movsi_insn): Split ldr and str
2338         alternatives according to use of high and low regs.
2339         * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
2340         * config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Use high regs when
2341         optimizing for size on Thumb-2.
2342
2343 2010-04-15  Thomas Schwinge  <tschwinge@gnu.org>
2344
2345         * config.gcc <i[34567]86-*-gnu*>: Handle softfp as for Linux.
2346
2347 2010-04-15  Richard Guenther  <rguenther@suse.de>
2348
2349         * tree-ssa-structalias.c (struct variable_info): Add
2350         is_fn_info flag.
2351         (new_var_info): Initialize it.
2352         (dump_constraints): Support printing last added constraints.
2353         (debug_constraints): Adjust.
2354         (dump_constraint_graph): Likewise.
2355         (make_heapvar_for): Check for NULL cfun.
2356         (get_function_part_constraint): New function.
2357         (get_fi_for_callee): Likewise.
2358         (find_func_aliases): Properly implement IPA PTA constraints.
2359         (process_ipa_clobber): New function.
2360         (find_func_clobbers): Likewise.
2361         (insert_into_field_list_sorted): Remove.
2362         (create_function_info_for): Properly allocate vars for IPA mode.
2363         Do not use insert_into_field_list_sorted.
2364         (create_variable_info_for): Properly generate constraints for
2365         global vars in IPA mode.
2366         (dump_solution_for_var): Always dump the solution.
2367         (set_uids_in_ptset): Initialize DECL_PT_UID if in ipa-mode.
2368         (find_what_var_points_to): Adjust.
2369         (pt_solution_set): Change.
2370         (pt_solution_ior_into): New function.
2371         (pt_solution_empty_p): Export.
2372         (pt_solution_includes_global): Adjust.
2373         (pt_solution_includes_1): Likewise.
2374         (pt_solutions_intersect_1): Likewise.
2375         (dump_sa_points_to_info): Check some invariants.
2376         (solve_constraints): Move constraint dumping ...
2377         (compute_points_to_sets): ... here.
2378         (ipa_pta_execute): ... and here.
2379         (compute_may_aliases): Do not re-compute points-to info
2380         locally if IPA info is available.
2381         (ipa_escaped_pt): New global var.
2382         (ipa_pta_execute): Properly implement IPA PTA.
2383         * tree-into-ssa.c (dump_decl_set): Support dumping
2384         decls not in referenced-vars.
2385         * tree-flow.h (struct gimple_df): Add ipa_pta flag.
2386         * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Adjust.
2387         (dump_points_to_solution): Likewise.
2388         * tree-dfa.c (dump_variable): Also dump DECL_PT_UID.
2389         * tree-inline.c (remap_ssa_name): Copy IPA points-to solution.
2390         (remap_gimple_stmt): Reset call clobber/use information if necessary.
2391         (copy_decl_to_var): Copy DECL_PT_UID.
2392         (copy_result_decl_to_var): Likewise.
2393         * tree.c (make_node_stat): Initialize DECL_PT_UID.
2394         (copy_node_stat): Copy it.
2395         * tree.h (DECL_PT_UID): New macro.
2396         (SET_DECL_PT_UID): Likewise.
2397         (DECL_PT_UID_SET_P): Likewise.
2398         (struct tree_decl_minimal): Add pt_uid member.
2399         * tree-ssa-alias.h (struct pt_solution): Add ipa_escaped flag.
2400         (pt_solution_empty_p): Declare.
2401         (pt_solution_set): Adjust.
2402         (ipa_escaped_pt): Declare.
2403         * cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
2404         * gimple-pretty-print.c (pp_points_to_solution): New function.
2405         (dump_gimple_call): Dump call clobber/use information.
2406         * tree-dump.c (dump_option_value_in): Add TDF_ALIAS entry.
2407         * tree-pass.h (TDF_ALIAS): New dump option.
2408         * tree-pretty-print.c (dump_decl_name): Dump DECL_PT_UID if asked to.
2409         * doc/invoke.texi (-fipa-pta): Update documentation.
2410
2411 2010-04-15  Richard Guenther  <rguenther@suse.de>
2412
2413         * Makefile.in (OBJS-common): Add gimple-fold.o.
2414         (gimple-fold.o): New rule.
2415         * tree.h (maybe_fold_offset_to_reference,
2416         maybe_fold_offset_to_address, maybe_fold_stmt_addition): Move
2417         prototypes ...
2418         * gimple.h: ... here.
2419         * tree-flow.h (fold_stmt, fold_stmt_inplace, get_symbol_constant_value,
2420         may_propagate_address_into_dereference): Move prototypes ...
2421         * gimple.h: ... here.
2422         * tree-ssa-ccp.c (get_symbol_constant_value,
2423         may_propagate_address_into_dereference, maybe_fold_offset_to_array_ref,
2424         maybe_fold_offset_to_component_ref, maybe_fold_offset_to_reference,
2425         maybe_fold_offset_to_address, maybe_fold_stmt_indirect,
2426         maybe_fold_stmt_addition, maybe_fold_reference, get_maxval_strlen,
2427         ccp_fold_builtin, fold_gimple_assign, fold_gimple_cond,
2428         fold_gimple_call, fold_stmt_1, fold_stmt, fold_stmt_inplace,
2429         gimplify_and_update_call_from_tree): Move ...
2430         * gimple-fold.c: ... here.  New file.
2431         (ccp_fold_builtin): Rename to ...
2432         (gimple_fold_builtin): ... this.
2433         * tree-ssa-ccp.c (execute_fold_all_builtins): Adjust.
2434
2435 2010-04-15  Richard Guenther  <rguenther@suse.de>
2436
2437         * fold-const.c (LOWPART, HIGHPART, BASE, encode, decode,
2438         fit_double_type, force_fit_type_double, add_double_with_sign,
2439         neg_double, mul_double_with_sign, lshift_double, rshift_double,
2440         lrotate_double, rrotate_double, div_and_round_double): Move ...
2441         * double-int.c: ... here.
2442         * tree.h (force_fit_type_double, fit_double_type, add_double_with_sign,
2443         add_double, neg_double, mul_double_with_sign, mul_double,
2444         lshift_double, rshift_double, lrotate_double, rrotate_double,
2445         div_and_round_double): Move prototypes ...
2446         * double-int.h: ... here.
2447
2448 2010-04-15  Bernd Schmidt  <bernds@codesourcery.com>
2449
2450         PR target/43742
2451         * config/sh/sh.md (doloop_end_split, dect): Undo previous patch.  Use
2452         matching constraints to ensure inputs match the output.
2453
2454 2010-04-15  Kaz Kojima  <kkojima@gcc.gnu.org>
2455
2456         PR target/43742
2457         * config/sh/sh.md (doloop_end_split): Remove "+r" constraint
2458         in an input-only operand.
2459
2460 2010-04-15  Anatoly Sokolov  <aesok@post.ru>
2461
2462         * double-int.h (HOST_BITS_PER_DOUBLE_INT): Define.
2463         (double_int_not, double_int_lshift, double_int_rshift): Declare.
2464         (double_int_negative_p): Convert to static inline function.
2465         * double-int.c (double_int_lshift, double_int_lshift): New functions.
2466         (double_int_negative_p): Remove.
2467         * tree.h (lshift_double, rshift_double):
2468         * tree.c (build_low_bits_mask): Clean up, use double_int_* functions.
2469         * fold-const.c (fold_convert_const_int_from_real,
2470         fold_convert_const_int_from_fixed, div_if_zero_remainder): (Ditto.).
2471         (lshift_double): Change type of arith argument to bool.
2472         (rshift_double): Change type of arith argument to bool. Correct
2473         comment.
2474         * expmed.c (mask_rtx, lshift_value): (Ditto.).
2475
2476 2010-04-14  Bernd Schmidt  <bernds@codesourcery.com>
2477
2478         PR target/21803
2479         * ifcvt.c (cond_exec_process_if_block): Look for identical sequences
2480         at the start and end of the then/else blocks, and omit them from the
2481         conversion.
2482         * cfgcleanup.c (flow_find_cross_jump): No longer static.  Remove MODE
2483         argument; all callers changed.  Pass zero to old_insns_match_p instead.
2484         (flow_find_head_matching_sequence): New function.
2485         (old_insns_match_p): Check REG_EH_REGION notes for calls.
2486         * basic-block.h (flow_find_cross_jump,
2487         flow_find_head_matching_sequence): Declare functions.
2488
2489 2010-04-14  Jason Merrill  <jason@redhat.com>
2490
2491         PR c++/36625
2492         * c-common.c (attribute_takes_identifier_p): New fn.
2493         * c-common.h: Declare it.
2494
2495 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
2496
2497         * config/i386/i386.md (*divmod<mode>4): Remove stray "&&" from
2498         splitter condition.
2499         (*udivmod<mode>4): Ditto.
2500
2501 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
2502
2503         * config/i386/i386.md (maxmin_int): Rename code attribute from
2504         maxminiprefix and update all users.
2505         (maxmin_float): Ditto from maxminfprefix.
2506         (logic): Ditto from logicprefix.
2507         (absneg_mnemonic): Ditto from absnegprefix.
2508         * config/i386/mmx.md: Update all users of maxminiprefix,
2509         maxminfprefix and logicprefix for rename.
2510         * config/i386/sse.md: Ditto.
2511         * config/i386/sync.md (sync_<code><mode>): Update for
2512         logicprefix rename.
2513
2514 2010-04-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2515
2516         PR 42966
2517         * diagnostics.c (diagnostic_report_diagnostic): Mark specially
2518         warnings converted to errors.
2519
2520 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
2521
2522         * config/alpha/alpha.c (alpha_adjust_cost): Remove set but not
2523         used insn_type variable.
2524         (function_value): Add ATTRIBUTE_UNUSED to dummy variable declaration
2525         to avoid set-but-not-used warning.
2526
2527 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
2528
2529         * df-core.c (df_ref_debug): Change format string placeholder
2530         from 0x%x to %#x.
2531         * dwarf2asm.c (dw2_asm_output_data_raw,
2532         dw2_asm_output_data_uleb128_raw, dw2_asm_output_data_uleb128,
2533         dw2_asm_output_data_sleb128_raw, dw2_asm_output_data_sleb128): Ditto.
2534         * dwarf2out.c (output_cfi, output_cfi_directive,
2535         dwarf2out_do_cfi_startproc, output_loc_sequence_raw,
2536         output_cfa_loc_raw, output_die, output_ranges, output_file_names):
2537         Ditto.
2538         * genattrtab.c (write_test_expr, write_attr_valueq): Ditto.
2539         * print-rtl.c (print_rtx): Ditto.
2540
2541 2010-04-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
2542
2543         PR middle-end/42694
2544         * builtins.c (expand_builtin_pow_root): New function to expand pow
2545         calls with exponents 0.25, 0.50, 0.75, 1./3., and 1./6. into a
2546         series of sqrt and cbrt calls under -ffast-math.
2547         (expand_builtin_pow): Call it.
2548
2549 2010-04-14  Michael Matz  <matz@suse.de>
2550
2551         PR tree-optimization/42963
2552         * tree-cfg.c (touched_switch_bbs): New static variable.
2553         (group_case_labels_stmt): New function broken out from ...
2554         (group_case_labels): ... here, use the above.
2555         (start_recording_case_labels): Allocate touched_switch_bbs.
2556         (end_recording_case_labels): Deallocate it, call
2557         group_case_labels_stmt.
2558         (gimple_redirect_edge_and_branch): Remember index of affected BB.
2559
2560 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
2561
2562         * config/i386/i386.md (*popcountsi2_cmp_zext): Remove mode attribute
2563         from insn template.
2564
2565 2010-04-14  Uros Bizjak  <ubizjak@gmail.com>
2566
2567         * config/i386/i386.md (*ashlqi3_1_slp): New insn pattern.
2568
2569 2010-04-13  Jan Hubicka  <jh@suse.cz>
2570
2571         * ipa-inline.c (cgraph_mark_inline_edge): Avoid double accounting
2572         of optimized out static functions.
2573         (cgraph_edge_badness): Add DUMP parameter and dump reasons for the
2574         cost computation.  Also sanity check for overflows.
2575         (update_caller_keys): Update cgraph_edge_badness call; properly
2576         update fibheap and sanity check that it is up to date.
2577         (add_new_edges_to_heap): Update cgraph_edge_badness.
2578         (cgraph_decide_inlining_of_small_function): Likewise;
2579         add sanity checking that badness in heap is up to date;
2580         improve dumping of reason; Update badness of calls to the
2581         offline copy of function currently inlined; dump badness
2582         of functions not inlined because of unit growth limits.
2583
2584 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
2585
2586         PR middle-end/32628
2587         * c-common.c (pointer_int_sum): Disregard overflow that occured only
2588         because of sign-extension change when converting to sizetype here...
2589         * fold-const.c (fold_convert_const_int_from_int): ...and not here.
2590
2591         * fold-const.c (fold_binary_op_with_conditional_arg): Do not restrict
2592         the folding to constants.  Remove redundant final conversion.
2593         (fold_binary) <associate>: Do not associate if the re-association of
2594         constants alone overflows.
2595         (fold_binary) <FLOOR_MOD_EXPR>: Move transformation into BIT_AND_EXPR
2596         to the end of the list.
2597         (multiple_of_p) <COND_EXPR>: New case.
2598
2599 2010-04-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>
2600
2601         * opt-functions.awk (opt_sanitized_name): New.
2602         (opt_enum): New.
2603         * optc-gen.awk: Use it
2604         * opth-gen.awk: Use it.
2605
2606 2010-04-13  Martin Jambor  <mjambor@suse.cz>
2607
2608         * tree-sra.c (replace_uses_with_default_def_ssa_name): New function.
2609         (sra_modify_assign): Delete stmts loading dead data even if racc has no
2610         children.  Call replace_uses_with_default_def_ssa_name to handle
2611         SSA_NAES on lhs.
2612
2613 2010-04-13  Michael Matz  <matz@suse.de>
2614
2615         PR middle-end/43730
2616         * builtins.c (expand_builtin_interclass_mathfn): Also create
2617         a register if the predicate doesn't match.
2618
2619 2010-04-13  Diego Novillo  <dnovillo@google.com>
2620
2621         * Makefile.in (c-pch.o, ggc-common.o): Depend on timevar.h.
2622         * c-pch.c: Include timevar.h.
2623         (c_common_write_pch): Use TV_PCH_SAVE and TV_PCH_CPP_SAVE timers.
2624         (c_common_read_pch): Use TV_PCH_RESTORE and TV_PCH_CPP_RESTORE timers.
2625         * ggc-common.c: Include timevar.h.
2626         (gt_pch_save): Use TV_PCH_PTR_REALLOC and TV_PCH_PTR_SORT timers.
2627         * timevar.def (TV_PCH_SAVE): Define.
2628         (TV_PCH_CPP_SAVE): Define.
2629         (TV_PCH_PTR_REALLOC): Define.
2630         (TV_PCH_PTR_SORT): Define.
2631         (TV_PCH_RESTORE): Define.
2632         (TV_PCH_CPP_RESTORE): Define.
2633
2634 2010-04-13  Michael Matz  <matz@suse.de>
2635
2636         * tree-ssa-reassoc.c (repropagate_negates): Merge negates also
2637         into MINUS_EXPRs.
2638         (can_reassociate_p): New function.
2639         (break_up_subtract_bb, reassociate_bb): Use it.
2640
2641 2010-04-13  Richard Guenther  <rguenther@suse.de>
2642
2643         PR bootstrap/43737
2644         * builtins.c (c_readstr): Fix assert.
2645
2646 2010-04-13  Uros Bizjak  <ubizjak@gmail.com>
2647
2648         * config/i386/i386.md (extendsidi2 splitter): Also check for DX_REG
2649         when generating cltd insn.
2650
2651         (*ashl<mode>3_1): Remove special handling for register operand 2.
2652         (*ashlsi3_1_zext): Ditto.
2653         (*ashlhi3_1): Ditto.
2654         (*ashlhi3_1_lea): Ditto.
2655         (*ashlqi3_1): Ditto.
2656         (*ashlqi3_1_lea): Ditto.
2657         (*<shiftrt_insn><mode>3_1): Ditto.
2658         (*<shiftrt_insn>si3_1_zext): Ditto.
2659         (*<shiftrt_insn>qi3_1_slp): Ditto.
2660         (*<rotate_insn><mode>3_1): Ditto.
2661         (*<rotate_insn>si3_1_zext): Ditto.
2662         (*<rotate_insn>qi3_1_slp): Ditto.
2663
2664 2010-04-13  Richard Guenther  <rguenther@suse.de>
2665
2666         * tree-ssa-structalias.c (callused_id): Remove.
2667         (call_stmt_vars): New.
2668         (get_call_vi): Likewise.
2669         (lookup_call_use_vi): Likewise.
2670         (lookup_call_clobber_vi): Likewise.
2671         (get_call_use_vi): Likewise.
2672         (get_call_clobber_vi): Likewise.
2673         (make_transitive_closure_constraints): Likewise.
2674         (handle_const_call): Adjust to do per-call call-used handling.
2675         (handle_pure_call): Likewise.
2676         (find_what_var_points_to): Remove general callused handling.
2677         (init_base_vars): Likewise.
2678         (init_alias_vars): Initialize call_stmt_vars.
2679         (compute_points_to_sets): Process call-used and call-clobbered
2680         vars for call statements.
2681         (delete_points_to_sets): Free call_stmt_vars.
2682
2683 2010-04-13  Richard Guenther  <rguenther@suse.de>
2684
2685         * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
2686         Only add RW dependence for dependence distance zero.
2687         Adjust maximal vectorization factor according to dependences.
2688         Move alignment handling ...
2689         (vect_find_same_alignment_drs): ... here.  New function.
2690         (vect_analyze_data_ref_dependences): Adjust.
2691         (vect_analyze_data_refs_alignment): Call vect_find_same_alignment_drs.
2692         (vect_analyze_data_refs): Adjust minimal vectorization factor
2693         according to data references.
2694         * tree-vect-loop.c (vect_analyze_loop): Analyze data-ref
2695         dependences before determining the vectorization factor.
2696         Analyze alignment after determining the vectorization factor.
2697         * tree-vect-slp.c ((vect_slp_analyze_bb): Analyze data-ref
2698         dependences before alignment.
2699         * tree-vectorizer.h (vect_analyze_data_ref_dependences):
2700         Adjust prototype.
2701         (vect_analyze_data_refs): Likewise.
2702         (MAX_VECTORIZATION_FACTOR): New define.
2703
2704 2010-04-13  Duncan Sands  <baldrick@free.fr>
2705
2706         * except.h (lang_eh_type_covers): Remove.
2707         * except.c (lang_eh_type_covers): Likewise.
2708
2709 2010-04-13  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
2710             Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
2711
2712         * gcc/config/s390/s390.md: Replace TARGET_64BIT with TARGET_ZARCH.
2713         * gcc/config/s390/s390.c: Replace UNTIS_PER_WORD with
2714         UNITS_PER_LONG where it is ABI relevant.
2715         (s390_return_addr_rtx): Likewise.
2716         (s390_back_chain_rtx): Likewise.
2717         (s390_frame_area): Likewise.
2718         (s390_frame_info): Likewise.
2719         (s390_initial_elimination_offset): Likewise.
2720         (save_gprs): Likewise.
2721         (s390_emit_prologue): Likewise.
2722         (s390_emit_epilogue): Likewise.
2723         (s390_function_arg_advance): Likewise.
2724         (s390_function_arg): Likewise.
2725         (s390_va_start): Likewise.
2726         (s390_gimplify_va_arg): Likewise.
2727         (s390_function_profiler): Likewise.
2728         (s390_optimize_prologue): Likewise.
2729         (s390_rtx_costs): Likewise.
2730         (s390_secondary_reload): Likewise.
2731         (s390_promote_function_mode): Likewise.
2732         (s390_hard_regno_mode_ok): Replace TARGET_64BIT with TARGET_ZARCH.
2733         (s390_scalar_mode_supported_p): Disallow TImode if no 64 bit
2734         registers available.
2735         (s390_unwind_word_mode): New function.
2736         (s390_function_value): Split 64 bit values into register pair if
2737         used as return value.
2738         (s390_call_saved_register_used): Don't use HARD_REGNO_NREGS for
2739         function call parameters.  Handle parallels.
2740         (TARGET_SCALAR_MODE_SUPPORTED_P): New macro.
2741         (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
2742         (DWARF_CIE_DATA_ALIGNMENT): New macro.
2743         (s390_expand_setmem): Remove unused variable src_addr.
2744         * gcc/longlong.h: Make smul_ppmm and sdiv_qrnnd inline asms to
2745         deal with 64 bit registers.
2746         * gcc/config/s390/s390.h: Define __zarch__ predefined macro.
2747         Replace UNITS_PER_WORD with UNITS_PER_LONG where it is ABI relevant.
2748         (UNITS_PER_LONG): New macro.
2749         * libjava/include/s390-signal.h: Define extended ucontext
2750         structure containing the upper halfs of the 64 bit registers.
2751
2752 2010-04-13  Simon Baldwin  <simonb@google.com>
2753
2754         * cfgexpand.c (gimple_expand_cfg): Clarify warning message text.
2755
2756 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
2757
2758         * gimple.c (walk_gimple_op) <GIMPLE_ASSIGN>: Do not request a pure
2759         rvalue on the RHS if the LHS is of a non-renamable type.
2760         * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Fold result.
2761
2762 2010-04-13  Matthias Klose  <doko@ubuntu.com>
2763
2764         * gcc.c (cc1_options): Handle -iplugindir before processing
2765         the cc1 spec. Only add -iplugindir once.
2766         (cpp_unique_options): Add -iplugindir option if -fplugin* options
2767         found.
2768         * common.opt (iplugindir): Remove `Separate' property, initialize.
2769         * plugin.c (default_plugin_dir_name): Error with missing -iplugindir
2770         option.
2771         * Makefile.in (check-%, check-parallel-%): Create plugin dir.
2772         (distclean): Remove plugin dir.
2773         * doc/invoke.texi: Document -iplugindir.
2774
2775 2010-04-13  Basile Starynkevitch  <basile@starynkevitch.net>
2776
2777         * doc/plugins.texi (Loading Plugins): Document short
2778         -fplugin=foo option.
2779         (Plugin API): Mention default_plugin_dir_name function.
2780
2781         * gcc.c (find_file_spec_function): Add new declaration.
2782         (static_spec_func): Use it for "find-file".
2783         (find_file_spec_function): Add new function.
2784         (cc1_options): Add -iplugindir option if -fplugin* options found.
2785
2786         * gcc-plugin.h (default_plugin_dir_name): Added new declaration.
2787
2788         * plugin.c (add_new_plugin): Updated comment, and handle short
2789         plugin name.
2790         (default_plugin_dir_name): Added new function.
2791
2792         * common.opt (iplugindir): New option to set the plugin directory.
2793
2794 2010-04-12  Uros Bizjak  <ubizjak@gmail.com>
2795
2796         * config/i386/i386.md (any_rotate): New code iterator.
2797         (rotate_insn): New code attribute.
2798         (rotate): Ditto.
2799         (SWIM124): New mode iterator.
2800         (<rotate_insn>ti3): New expander.
2801         (<rotate_insn>di3): Macroize expander from {rotl,rotr}di3 using
2802         any_rotate code iterator.
2803         (<rotate_insn><mode>3) Macroize expander from {rotl,rotr}{qi,hi,si}3
2804         using any_rotate code iterator and SWIM124 mode iterator.
2805         (ix86_rotlti3): New insn_and_split pattern.
2806         (ix86_rotrti3): Ditto.
2807         (ix86_rotl<dwi>3_doubleword): Macroize insn_and_split pattern from
2808         ix86_rotl{di,ti}3 patterns.
2809         (ix86_rotr<dwi>3_doubleword): Ditto from ix86_rotr{di,ti}3 patterns.
2810         (*<rotate_insn><mode>3_1): Merge with *{rotl,rotr}{qi,hi,si}3_1_one_bit
2811         and *{rotl,rotr}di3_1_one_bit_rex64. Macroize insn from
2812         *{rotl,rotr}{qi,hi,si}3_1 and *{rotl,rotr}di3_1_rex64 using any_rotate
2813         code iterator and SWI mode iterator.
2814         (*<rotate_insn>si3_1_zext): Merge with *{rotl,rotr}si3_1_one_bit_zext.
2815         Macroize insn from {rotl,rotr}si3_1_zext using any_rotate
2816         code iterator.
2817         (*<rotate_insn>qi3_1_slp): Merge with *{rotl,rotr}qi3_1_one_bit_slp.
2818         Macroize insn from {rotl,rotr}qi3_1_slp using any_rotate code iterator.
2819         (bswap rotatert splitter): Add splitter.
2820         (bswap splitter): Macroize splitter using any_rotate code iterator.
2821         Add insn predicate to split only for TARGET_USE_XCHGB or when
2822         optimizing function for size.
2823
2824 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
2825
2826         * config/pa/pa.c (emit_move_sequence): Remove use of
2827         deleted variable flag_argument_noalias.
2828
2829 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2830
2831         * config.gcc: Removed *-*-solaris2.7* from list of obsolete
2832         configurations.
2833         Add to unsupported targets list.
2834         * configure.ac (gcc_cv_as_tls): Removed i[34567]86-*-solaris2.[567]*,
2835         sparc*-sun-solaris2.[567]* from target lists.
2836         * configure: Regenerate.
2837         * doc/install.texi (Specific, *-*-solaris2*): Document Solaris 7
2838         removal.
2839         Remove Solaris 7 patch references.
2840         (Specific, sparc-sun-solaris2.7): Removed.
2841         (sparc-sun-solaris2*): Update Solaris 7 example.
2842         (sparc64-*-solaris2*): Likewise.
2843
2844 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2845
2846         * config.build (alpha*-dec-osf4*): Remove.
2847         * config.gcc: Remove alpha*-dec-osf4*, alpha-dec-osf5.0* from list
2848         of obsolete configurations.
2849         (alpha*-dec-osf[45]*): Remove alpha*-dec-osf4*, alpha-dec-osf5.0*
2850         support.
2851         * config/alpha/t-osf4: Renamed to ...
2852         * config/alpha/t-osf5: ... this.
2853         * config/alpha/osf.h: Renamed to ...
2854         * config/alpha/osf5.h: ... this.
2855         Merged old osf5.h contents.
2856         Update comments.
2857         (ASM_SPEC): Use ASM_OLDAS_SPEC directly.
2858         (EXTRA_SPECS): Removed.
2859         * doc/install.texi (Specific, alpha*-dec-osf5.1): Renamed to
2860         reflect removal of Tru64 UNIX V4.0/V5.0 support.
2861         Document that.
2862
2863 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2864
2865         * doc/contrib.texi (Contributors, Rainer Orth): Update.
2866
2867 2010-04-12  Kai Tietz  <kai.tietz@onevision.com>
2868
2869         PR/43702
2870         * config/i386/i386.c (x86_this_parameter): Handle aggregate for
2871         __thiscall convention.
2872
2873 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
2874
2875         * config/pa/pa.c (hppa_legitimize_address): Remove unused variable
2876         orig_base.
2877         * config/pa/pa.md (call, call_value): Remove unused variable call_insn.
2878
2879 2010-04-12  Steve Ellcey  <sje@cup.hp.com>
2880
2881         * function.c (assign_parms_initialize_all): Add unused attribute
2882         to fntype.
2883
2884 2010-04-12  Richard Guenther  <rguenther@suse.de>
2885
2886         * gsstruct.def (GSS_CALL): New.
2887         * gimple.def (GIMPLE_CALL): Change to GSS_CALL.
2888         * gimple.h: Include tree-ssa-alias.h.
2889         (struct gimple_statement_call): New.
2890         (union gimple_statement_struct_d): Add gimple_call member.
2891         (gimple_call_reset_alias_info): Declare.
2892         (gimple_call_use_set): New function.
2893         (gimple_call_clobber_set): Likewise.
2894         * Makefile.in (GIMPLE_H): Add tree-ssa-alias.h.
2895         * gimple.c (gimple_call_reset_alias_info): New function.
2896         (gimple_build_call_1): Call it.
2897         * lto-streamer-in.c (input_gimple_stmt): Likewise.
2898         * tree-inline.c (remap_gimple_stmt): Likewise.
2899         (expand_call_inline): Remove callused handling.
2900         * cfgexpand.c (update_alias_info_with_stack_vars): Likewise.
2901         * tree-dfa.c (dump_variable): Likewise.
2902         * tree-parloops.c (parallelize_loops): Likewise.
2903         * tree-ssa.c (init_tree_ssa): Likewise.
2904         (delete_tree_ssa): Likewise.
2905         * tree-flow-inline.h (is_call_used): Remove.
2906         * tree-flow.h (struct gimple_df): Remove callused member.
2907         * tree-nrv.c (dest_safe_for_nrv_p): Adjust predicate.
2908         * tree-ssa-alias.c (dump_alias_info): Remove callused handling.
2909         (ref_maybe_used_by_call_p_1): Simplify.
2910         (call_may_clobber_ref_p_1): Likewise.
2911         * tree-ssa-structalias.c (compute_points_to_sets): Set
2912         the call stmt used and clobbered sets.
2913         * tree-tailcall.c (suitable_for_tail_opt_p): Adjust predicate.
2914         (find_tail_calls): Verify the tail call.
2915
2916 2010-04-12  Richard Guenther  <rguenther@suse.de>
2917
2918         * ipa.c (cgraph_postorder): Adjust postorder to guarantee
2919         single-iteration always-inline inlining.
2920         * ipa-inline.c (cgraph_mark_inline): Do not return anything.
2921         (cgraph_decide_inlining): Do not handle always-inline specially.
2922         (try_inline): Remove always-inline cycle detection special case.
2923         Do not recurse on always-inlines.
2924         (cgraph_early_inlining): Do not iterate if not optimizing.
2925         (cgraph_gate_early_inlining): remove.
2926         (pass_early_inline): Run unconditionally.
2927         (gate_cgraph_decide_inlining): New function.
2928         (pass_ipa_inline): Use it.  Do not run the IPA inliner if
2929         not inlining or optimizing.
2930         (cgraph_decide_inlining_of_small_functions): Also consider
2931         always-inline functions.
2932         (cgraph_default_inline_p): Return true for nodes which should
2933         disregard inline limits.
2934         (estimate_function_body_sizes): Assume zero size and time for
2935         nodes which are marked as disregarding inline limits.
2936         (cgraph_decide_recursive_inlining): Do not perform recursive
2937         inlining on always-inline nodes.
2938
2939 2010-04-12  Jakub Jelinek  <jakub@redhat.com>
2940
2941         PR bootstrap/43699
2942         * c-typeck.c (c_process_expr_stmt): Call mark_exp_read even
2943         for exprs satisfying handled_component_p.
2944
2945 2010-04-12  Eric Botcazou  <ebotcazou@adacore.com>
2946
2947         * expr.c (categorize_ctor_elements_1): Properly count sub-elements of
2948         non-constant aggregate elements.
2949
2950         * gimplify.c (gimplify_init_constructor): Do not pre-evaluate if this
2951         is a real initialization.
2952
2953 2010-04-12  Shujing Zhao  <pearly.zhao@oracle.com>
2954
2955         PR c/36774
2956         * c-decl.c (start_function): Move forward check for nested function.
2957
2958 2010-04-11  Kaz Kojima  <kkojima@gcc.gnu.org>
2959
2960         * config/sh/sh-protos.h (sh_legitimize_reload_address): Declare.
2961         * config/sh/sh.c: Include reload.h.
2962         (sh_legitimize_reload_address): New.
2963         * config/sh/sh.h (LEGITIMIZE_RELOAD_ADDRESS): Use
2964         sh_legitimize_reload_address.
2965
2966 2010-04-11  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
2967
2968         * config/sh/sh.md (*movqi_pop): New insn pattern.
2969         * config/sh/predicates.md (sh_no_delay_pop_operand): New predicate.
2970
2971 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
2972
2973         * config/i386/i386.md (any_shiftrt): New code iterator.
2974         (shiftrt_insn): New code attribute.
2975         (shiftrt): Ditto.
2976         (<shiftrt_insn><mode>3): Macroize expander from {ashr,lshr}<mode>3
2977         using any_shiftrt code iterator.
2978         (*<shiftrt_insn><mode>3_doubleword): Macroize insn_and_split from
2979         *{ashr,lshr}<mode>3_doubleword using any_shiftrt code iterator.
2980         (*<shiftrt_insn><mode>3_doubleword peephole2): Macroize peephole2
2981         pattern from corresponding peephole2 patterns.
2982         (*<shiftrt_insn><mode>3_1): Macroize insn from *{ashr,lshr}<mode>3_1
2983         using any_shiftrt code iterator.
2984         (*<shiftrt_insn>si3_1_zext): Ditto from *{ashr,lshr}si3_1_zext.
2985         (*<shiftrt_insn>qi3_1_slp): Ditto from *{ashr,lshr}qi3_1_slp.
2986         (*<shiftrt_insn><mode>3_cmp): Ditto from *{ashr,lshr}<mode>3_cmp.
2987         (*<shiftrt_insn><mode>3_cmp_zext): Ditto from
2988         *{ashr,lshr}<mode>3_cmp_zext.
2989         (*<shiftrt_insn><mode>3_cconly): Ditto from *{ashr,lshr}<mode>3_cconly.
2990
2991 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
2992
2993         * config/i386/i386.md (*ashr<mode>3_cconly): Fix wrong mode of
2994         scratch register.
2995         (*lshr<mode>3_cconly): Ditto.
2996
2997 2010-04-11  Uros Bizjak  <ubizjak@gmail.com>
2998
2999         * config/i386/i386.md (lshr<mode>3): Macroize expander from
3000         lshr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
3001         (*lshr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
3002         pattern from *lshr{di,ti}3_1 and corresponding splitters using
3003         DWI mode iterator.
3004         (*lshr<mode>3_doubleword peephole2): Macroize peephole2 pattern
3005         from corresponding peephole2 patterns.
3006         (*lshr<mode>3_1): Merge with *lshr{qi,hi,si}3_1_one_bit and
3007         *lshrdi3_1_one_bit_rex64. Macroize insn from *lshr{qi,hi,si}3_1
3008         and *lshrdi3_1_rex64 using SWI mode iterator.
3009         (*lshrsi3_1_zext): Merge with *lshrsi3_1_one_bit_zext.
3010         (*lshrqi3_1_slp): Merge with *lshrqi3_1_one_bit_slp.
3011         (*lshr<mode>3_cmp): Merge with *lshr{qi,hi,si}3_one_bit_cmp and
3012         *lshrdi3_one_bit_cmp_rex64. Macroize insn from *lshr{qi,hi,si}3_cmp
3013         and *lshrdi3_cmp_rex64 using SWI mode iterator.
3014         (*lshrsi3_cmp_zext): Merge with *lshrsi3_cmp_one_bit_zext.
3015         (*lshr<mode>3_cconly): Merge with *lshr{qi,hi,si}3_one_bit_cconly and
3016         *lshrdi3_one_bit_cconly_rex64. Macroize insn from
3017         *lshr{qi,hi,si}3_cconly and *lshrdi3_cconly_rex64 using
3018         SWI mode iterator.
3019
3020 2010-04-10  Uros Bizjak  <ubizjak@gmail.com>
3021
3022         * config/i386/i386.md (ashr<mode>3): Macroize expander from
3023         ashr{qi,hi,si,di,ti}3_1 using SDWIM mode iterator.
3024         (*ashr<mode>3_doubleword): New insn_and_split_pattern.  Macroize
3025         pattern from *ashr{di,ti}3_1 and corresponding splitters using
3026         DWI mode iterator.
3027         (*ashr<mode>3_doubleword peephole2): Macroize peephole2 pattern
3028         from corresponding peephole2 patterns.
3029         (ashrdi3_cvt): Rename from ashrdi3_63_rex64.
3030         (ashrsi3_cvt): Rename from ashrsi3_31.
3031         (*ashrsi3_cvt_zext): Rename from *ashrsi3_31_zext.
3032         (x86_shift<mode>_adj_3): Macroize expander from x86_shift_adj_3
3033         and x86_64_shift_adj_3 using SWI48 mode iterator.
3034         (*ashr<mode>3_1): Merge with *ashr{qi,hi,si}3_1_one_bit and
3035         *ashrdi3_1_one_bit_rex64. Macroize insn from *ashr{qi,hi,si}3_1
3036         and *ashrdi3_1_rex64 using SWI mode iterator.
3037         (*ashrsi3_1_zext): Merge with *ashrsi3_1_one_bit_zext.
3038         (*ashrqi3_1_slp): Merge with *ashrqi3_1_one_bit_slp.
3039         (*ashr<mode>3_cmp): Merge with *ashr{qi,hi,si}3_one_bit_cmp and
3040         *ashrdi3_one_bit_cmp_rex64. Macroize insn from *ashr{qi,hi,si}3_cmp
3041         and *ashrdi3_cmp_rex64 using SWI mode iterator.
3042         (*ashrsi3_cmp_zext): Merge with *ashrsi3_cmp_one_bit_zext.
3043         (*ashr<mode>3_cconly): Merge with *ashr{qi,hi,si}3_one_bit_cconly and
3044         *ashrdi3_one_bit_cconly_rex64. Macroize insn from
3045         *ashr{qi,hi,si}3_cconly and *ashrdi3_cconly_rex64 using
3046         SWI mode iterator.
3047         (sign_extend splitters): Update for renamed ashr{di,si}3_cvt patterns.
3048         * config/i386/i386.c (ix86_split_ashr): Update for renamed
3049         x86_shift<mode>_adj_3 expanders.
3050
3051 2010-04-10  Wei Guozhi  <carrot@google.com>
3052
3053         PR target/42601
3054         * config/arm/arm.c (arm_pic_static_addr): New function.
3055         (legitimize_pic_address): Call arm_pic_static_addr when it detects
3056         a static symbol.
3057         (arm_output_addr_const_extra): Output expression for new pattern.
3058         * config/arm/arm.md (UNSPEC_SYMBOL_OFFSET): New unspec symbol.
3059
3060 2010-04-10  Bernd Schmidt  <bernds@codesourcery.com>
3061
3062         * ira-costs.c (record_reg_classes): Ignore alternatives that are
3063         not enabled.
3064
3065         * Makefile.in (web.o): Depend on insn-config.h and $(RECOG_H).
3066         * web.c: Include "insn-config.h" and "recog.h".
3067         (union_match_dups): New function.
3068         (web_main): Call it.
3069         (union_defs): Don't try to recognize match_dups.
3070
3071         * reload1.c (eliminate_regs_in_insn): Don't restore an operand
3072         if doing so would replace the entire pattern.
3073
3074 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
3075
3076         PR target/43707
3077         PR target/43709
3078         * config/i386/i386.md (*ashl<mode>3_doubleword): Split to insn
3079         and splitter pattern.  Change splitter operand 1 predicate to
3080         nonmemory_operand.
3081
3082 2010-04-09  Martin Jambor  <mjambor@suse.cz>
3083
3084         * ipa-cp.c (ipcp_lats_are_equal): Return true also if the two
3085         lattices are addresses of CONST_DECLs with the same initial value.
3086         (ipcp_print_all_lattices): Print values of CONST_DECLs.
3087         * ipa-prop.c (ipa_print_node_jump_functions): Likewise.
3088
3089 2010-04-09  Eric Botcazou  <ebotcazou@adacore.com>
3090             Bernd Schmidt  <bernds@codesourcery.com>
3091
3092         * loop-invariant.c (replace_uses): New static function.
3093         (move_invariant_reg): Use it to ensure we can replace the uses.
3094
3095 2010-04-09  Hariharan Sandanagobalane  <hariharan@picochip.com>
3096
3097         * config/picochip/picochip.c (picochip_rtx_costs): Use correct
3098         function template.
3099         (picochip_override_options): Enable section anchors only above -O1.
3100         (picochip_reorg): Fixed a couple of build warnings.
3101
3102 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3103
3104         * configure.ac (plugin -rdynamic test): Log result.
3105         * configure: Regenerate.
3106         * config/sol2.h (LINK_SPEC): Handle -rdynamic.
3107         (RDYNAMIC_SPEC): Define.
3108         * config/sol2-gld.h (RDYNAMIC_SPEC): Redefine.
3109
3110 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3111
3112         * configure.ac: Determine Sun ld version numbers.
3113         (comdat_group): Restrict GNU ld version checks to gld.
3114         (comdat_group, *-*-solaris2.1[1-9]*): Enable for Sun ld > 1.1688.
3115         (enable_comdat): Support --enable-comdat.
3116         * configure: Regenerate.
3117         * doc/install.texi (Configuration): Document --enable-comdat.
3118
3119 2010-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3120
3121         * config/sparc/sol2-gld.h: Remove SPARC reference.  Rename ...
3122         * config/sol2-gld.h: ... here.
3123         * config.gcc (sparc*-*-solaris2*): Reflect this.
3124         (i[34567]86-*-solaris2*): Use it.
3125
3126 2010-04-09  Steve Ellcey  <sje@cup.hp.com>
3127
3128         * config/ia64/ia64.c (ia64_dfa_new_cycle): Remove unused variable
3129         setup_clocks_p.
3130         (final_emit_insn_group_barriers): Remove unused variable prev_insn.
3131
3132 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3133
3134         PR 42965
3135         * diagnostic.c (diagnostic_initialize): Initialize
3136         some_warnings_are_errors.
3137         (diagnostic_finish): New.
3138         (diagnostic_action_after_output): Call it before exiting.
3139         (diagnostic_report_diagnostic): Do not print message here. Set
3140         some_warnings_are_errors.
3141         * diagnostic.h (diagnostic_context): Delete
3142         issue_warnings_are_errors_message. Add some_warnings_are_errors.
3143         (diagnostic_finish): Declare.
3144         * toplev.c (toplev_main): Call it before exit.
3145
3146 2010-04-09  Jason Merrill  <jason@redhat.com>
3147
3148         PR c++/42623
3149         * c-common.c (c_sizeof_or_alignof_type): Return error_mark_node
3150         for incomplete type.
3151
3152         PR c++/41788
3153         * stor-layout.c (finalize_record_size): Don't change TYPE_PACKED
3154         based on a warning flag.
3155
3156 2010-04-09  Richard Guenther  <rguenther@suse.de>
3157
3158         * tree-pretty-print.c (dump_generic_node): Dump TYPE_VECTOR_SUBPARTS.
3159
3160 2010-04-09  Iain Sandoe  <iains@gcc.gnu.org>
3161
3162         PR bootstrap/43684
3163         * varasm.c (default_assemble_visibility): Wrap vars that are
3164         set, but unused, by targets without GAS.
3165         * config/rs6000/rs6000.c: (paired_emit_vector_compare):
3166         Remove set, but unused, vars.
3167         (rs6000_legitimize_tls_address): Likewise.
3168         (altivec_expand_dst_builtin): Likewise.
3169         * config/darwin.c (machopic_classify_symbol): Likewise.
3170         (machopic_indirection_name): Likewise.
3171
3172 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
3173
3174         * config/i386/i386.md (DWI): New mode iterator.
3175         (S): New mode attribute.
3176         (shift_operand): Ditto.
3177         (shift_immediate_operand): Ditto.
3178         (ashl_input_operand): Ditto.
3179         (ashl<mode>3): Macroize expander from ashl{qi,hi,si,di,ti}3_1
3180         using SDWIM mode iterator.
3181         (*ashl<mode>3_doubleword): New insn_and_split_pattern.  Macroize
3182         pattern from *ashl{di,ti}3_1 and corresponding splitters using
3183         DWI mode iterator.
3184         (*ashl<mode>3_doubleword peephole2): Macroize peephole2 pattern
3185         from corresponding peephole2 patterns.
3186         (x86_shift<mode>_adj_1): Macroize expander from x86_shift_adj_1
3187         and x86_64_shift_adj_1 using SWI48 mode iterator.
3188         (x86_shift<mode>_adj_2): Ditto.
3189         (*ashldi3_1_rex64): Split TYPE_LEA pattern.
3190         (*ashl<mode>3_1): Macroize insn from *ashlsi3_1 and *ashldi3_1_rex64
3191         using SWI48 mode iterator.
3192         (*ashl<mode>3_cmp): Macroize insn from *ashl{qi,hi,si}3_cmp and
3193         *ashldi3_cmp_rex64 using SWI mode iterator.
3194         (*ashl<mode>3_cconly): Macroize insn from *ashl{qi,hi,si}3_cconly and
3195         *ashldi3_cconly_rex64 using SWI mode iterator.
3196         * config/i386/i386.c (ix86_split_ashl): Update for renamed
3197         x86_shift<mode>_adj_{1,2}.
3198         (ix86_split_ashr): Ditto.
3199         (ix86_split_lshr): Ditto.
3200
3201 2010-04-09  Richard Guenther  <rguenther@suse.de>
3202
3203         * target.h (builtin_conversion): Pass in input and output types.
3204         * targhooks.c (default_builtin_vectorized_conversion): Adjust.
3205         * targhooks.h (default_builtin_vectorized_conversion): Likewise.
3206         * tree-vect-stmts.c (vectorizable_conversion): Adjust.
3207         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): Adjust.
3208
3209         * config/i386/i386.c (ix86_vectorize_builtin_conversion): Adjust.
3210         Handle AVX modes.
3211         * config/rs6000/rs6000.c (rs6000_builtin_conversion): Adjust.
3212
3213 2010-04-09  Richard Guenther  <rguenther@suse.de>
3214
3215         PR target/43152
3216         * config/i386/sse.md (vcond<mode>): Handle AVX modes as well.
3217
3218 2010-04-09  Richard Guenther  <rguenther@suse.de>
3219
3220         * tree-vectorizer.h (struct _stmt_vec_info): Document
3221         that vectype is the type of the LHS.
3222         (supportable_widening_operation, supportable_narrowing_operation):
3223         Get both input and output vector types as arguments.
3224         (vect_is_simple_use_1): Declare.
3225         (get_same_sized_vectype): Likewise.
3226         * tree-vect-loop.c (vect_determine_vectorization_factor):
3227         Set STMT_VINFO_VECTYPE to the vector type of the def.
3228         (vectorizable_reduction): Adjust.
3229         * tree-vect-patterns.c (vect_recog_widen_mult_pattern):
3230         Adjust.  Specify the output vector type.
3231         (vect_pattern_recog_1): Adjust.
3232         * tree-vect-stmts.c (get_same_sized_vectype): New function.
3233         (vectorizable_call): Adjust.
3234         (vectorizable_conversion): Likewise.
3235         (vectorizable_operation): Likewise.
3236         (vectorizable_type_demotion): Likewise.
3237         (vectorizable_type_promotion): Likewise.
3238         (vect_analyze_stmt): Set STMT_VINFO_VECTYPE to the vector type of
3239         the def.
3240         (vect_is_simple_use_1): New function.
3241         (supportable_widening_operation): Get both input and output
3242         vector types.
3243         (supportable_narrowing_operation): Likewise.
3244         * tree-vect-slp.c (vect_schedule_slp_instance): Adjust.
3245
3246 2010-04-09  Kai Tietz  <kai.tietz@onevision.com>
3247
3248         * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Add
3249         __thiscall and _thiscall as predefined macros.
3250         * config/i386/i386.c (ix86_handle_cconv_attribute): Add
3251         thiscall attribute handling.
3252         (ix86_comp_type_attributes): Likewise.
3253         (ix86_function_regparm): Likewise.
3254         (ix86_return_pops_args): Likewise.
3255         (init_cumulative_args): Likewise.
3256         (find_drap_reg): Likewise.
3257         (ix86_static_chain): Likewise.
3258         (x86_this_parameter): Likewise.
3259         (x86_output_mi_thunk): Likewise.
3260         (ix86_attribute_table): Add description for thiscall attribute.
3261         * config/i386/i386.h (ix86_args): Adjust comment for member fastcall.
3262         * doc/extend.texi: Add documentation for thiscall.
3263
3264 2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3265
3266         PR c++/28584
3267         * c.opt (Wint-to-pointer-cast): Available in C++.
3268         * doc/invoke.texi (Wint-to-pointer-cast): Available in C++.
3269
3270 2010-04-08  Eric Botcazou  <ebotcazou@adacore.com>
3271
3272         * tree.h (TREE_ADDRESSABLE): Document its effect for function types.
3273         * calls.c (expand_call): Pass the function type to aggregate_value_p.
3274         * function.c (aggregate_value_p): Do not honor DECL_BY_REFERENCE on
3275         the target function of a CALL_EXPR.  Honor TREE_ADDRESSABLE on the
3276         function type instead.  Reorder and simplify checks.
3277
3278         * gimplify.c (gimplify_modify_expr_rhs) <WITH_SIZE_EXPR>: New case.
3279
3280 2010-04-08  Jing Yu  <jingyu@google.com>
3281             Zdenek Dvorak  <ook@ucw.cz>
3282
3283         PR tree-optimization/42720
3284         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Move one-time
3285         loop unswitch conditions here from ...
3286         (tree_unswitch_single_loop): ... here.
3287
3288 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
3289
3290         * tree-if-conv.c: Fix comments and simplify logic.
3291
3292 2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>
3293
3294         * tree-if-conv.c (if_convertible_loop_p): Remove unused parameter.
3295         (tree_if_conversion): Same.  Update call to if_convertible_loop_p.
3296         (main_tree_if_conversion): Update call to tree_if_conversion.
3297
3298 2010-04-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>
3299
3300         PR 42485
3301         * doc/invoke.texi (-b,-V): Delete.
3302         * doc/tm.texi: Do not mention -b.
3303         * gcc.c (display_help): Delete -b and -V.
3304         (process_command): Delete -b and -V.
3305         * gcc.h (DEFAULT_SWITCH_TAKES_ARG): Delete -b and -V.
3306
3307 2010-04-08  Christian Borntraeger  <borntraeger@de.ibm.com>
3308             Wolfgang Gellerich  <gellerich@de.ibm.com>
3309
3310         Implement target hook for loop unrolling
3311         * target.h (loop_unroll_adjust): Add a new target hook function.
3312         * target-def.h (TARGET_LOOP_UNROLL_ADJUST): Likewise.
3313         * doc/tm.texi (TARGET_LOOP_UNROLL_ADJUST): Document it.
3314         * config/s390/s390.c (TARGET_LOOP_UNROLL_ADJUST): Define it.
3315         (s390_loop_unroll_adjust): Implement the new target hook for s390.
3316         * loop-unroll.c (decide_unroll_runtime_iterations): Call loop unroll
3317         target hook.
3318         (decide_unroll_stupid): Likewise.
3319
3320 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3321
3322         PR target/43643
3323         * config/i386/gmon-sol2.c [__x86_64__]: Properly restore %rcx.
3324
3325 2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3326
3327         * doc/install.texi (Specific, i?86-*-solaris2.10): Fix grammar.
3328         (Specific, *-*-solaris2*): Likewise.
3329         Don't prefer Sun as over GNU as.
3330
3331 2010-04-08  Wolfgang Gellerich  <gellerich@de.ibm.com>
3332
3333         * config/s390/s390.c (override_options): Adjust the z10
3334           defaults for max-unroll-times, max-completely-peeled-insns
3335           and max-completely-peel-times.
3336
3337 2010-04-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3338
3339         * config/s390/s390.c (s390_expand_movmem): Issue prefetch
3340         instructions for z10.
3341         (s390_expand_setmem): Likewise.
3342         (s390_expand_cmpmem): Likewise.
3343
3344 2010-04-08  Richard Guenther  <rguenther@suse.de>
3345
3346         PR tree-optimization/43679
3347         * tree-ssa-pre.c (eliminate): Only propagate copies.
3348
3349 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
3350
3351         PR bootstrap/43681
3352         * expr.c (block_move_libcall_safe_for_call_parm): Avoid
3353         set but not used variable warning.
3354
3355 2010-04-08  Wei Guozhi  <carrot@google.com>
3356
3357         PR target/41653
3358         * config/arm/arm.c (thumb1_size_rtx_costs): New function.
3359         (arm_size_rtx_costs): Call the new function when optimized for size.
3360
3361 2010-04-08  Jakub Jelinek  <jakub@redhat.com>
3362
3363         PR debug/43670
3364         * cfgexpand.c (expand_debug_expr): If for non-NULL offset
3365         op0 is not a MEM, just return NULL instead of assertion
3366         failure.
3367         (discover_nonconstant_array_refs): Don't walk debug stmts.
3368
3369 2010-04-08  Doug Kwan  <dougkwan@google.com>
3370
3371         * configure.ac: Recognize gold and do not use its version number
3372         to test ld features.
3373         * configure: Regenerate.
3374
3375 2010-04-08  Maxim Kuvyrkov  <maxim@codesourcery.com>
3376
3377         PR middle-end/40815
3378         * tree-ssa-reassoc.c (broken_up_substracts): Rename to plus_negates.
3379         (negate_value): Move code to push elements to broken_up_substracts ...
3380         (eliminate_plus_minus_pair): ... here.  Push operands that have no
3381         negative pair to plus_negates.
3382         (repropagate_negates, init_reassoc, fini_reassoc): Update.
3383
3384 2010-04-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3385
3386         * doc/install.texi (Configuration): Move description of
3387         --enable-lto, --with-libelf*, --enable-gold from Java section to
3388         general section.
3389
3390         * doc/generic.texi (Working with declarations)
3391         (Function Properties, C and C++ Trees): Fix typos.
3392         * doc/sourcebuild.texi (Top Level): Likewise.
3393
3394 2010-04-07  Jakub Jelinek  <jakub@redhat.com>
3395
3396         PR c/18624
3397         * tree.h (DECL_READ_P): Define.
3398         (struct tree_decl_common): Add decl_read_flag.
3399         * c-decl.c (pop_scope): If TREE_USED but !DECL_READ_P, issue
3400         a set but not used warning.
3401         (merge_decls): Merge DECL_READ_P flag.
3402         (finish_decl, build_compound_literal): Set DECL_READ_P flag.
3403         (finish_function): Issue -Wunused-but-set-parameter diagnostics.
3404         * c-common.c (handle_used_attribute, handle_unused_attribute):
3405         Likewise.
3406         * c-tree.h (default_function_array_read_conversion, mark_exp_read):
3407         New prototypes.
3408         * c-typeck.c (default_function_array_read_conversion, mark_exp_read):
3409         New functions.
3410         (default_conversion, c_process_expr_stmt): Call mark_exp_read.
3411         * c-parser.c (c_parser_initializer, c_parser_expr_no_commas,
3412         c_parser_binary_expression, c_parser_cast_expression,
3413         c_parser_expr_list, c_parser_omp_atomic, c_parser_omp_for_loop):
3414         Call default_function_array_read_conversion instead of
3415         default_function_array_conversion where needed.
3416         (c_parser_unary_expression, c_parser_conditional_expression,
3417         c_parser_postfix_expression_after_primary, c_parser_initelt):
3418         Likewise.  Call mark_exp_read where needed.
3419         (c_parser_statement_after_labels, c_parser_asm_operands,
3420         c_parser_typeof_specifier, c_parser_sizeof_expression,
3421         c_parser_alignof_expression, c_parser_initval): Call mark_exp_read
3422         where needed.
3423         * common.opt (Wunused-but-set-variable, Wunused-but-set-parameter):
3424         New.
3425         * toplev.c (warn_unused_but_set_variable): Default to warn_unused.
3426         (warn_unused_but_set_parameter): Default to warn_unused
3427         && extra_warnings.
3428         * doc/invoke.texi: Document -Wunused-but-set-variable and
3429         -Wunused-but-set-parameter.
3430
3431         * tree-ssa-pre.c (my_rev_post_order_compute): Remove set but not
3432         used count variable.
3433         * genemit.c (gen_expand, gen_split): Avoid set but not used warnings
3434         when operandN variables aren't used in the body of the expander
3435         or splitter.
3436         * tree-outof-ssa.c (FOR_EACH_ELIM_GRAPH_SUCC,
3437         FOR_EACH_ELIM_GRAPH_PRED): Avoid set but not used warnings.
3438         * tree-ssa-operands.h (FOR_EACH_SSA_TREE_OPERAND): Likewise.
3439         * tree-flow.h (FOR_EACH_IMM_USE_FAST, FOR_EACH_IMM_USE_STMT,
3440         FOR_EACH_IMM_USE_ON_STMT): Likewise.
3441         * tree.h (FOR_EACH_CONSTRUCTOR_ELT): Likewise.
3442         * tree.c (PROCESS_ARG): Likewise.
3443
3444 2010-04-07  Simon Baldwin  <simonb@google.com>
3445
3446         * diagnostic.h (diagnostic_override_option_index): New macro to
3447         set a diagnostic's option_index.
3448         * c-tree.h (c_cpp_error): Add warning reason argument.
3449         * opts.c (_warning_as_error_callback): New.
3450         (register_warning_as_error_callback): Store callback for
3451         warnings enabled via enable_warning_as_error.
3452         (enable_warning_as_error): Call callback, minor code tidy.
3453         * opts.h (register_warning_as_error_callback): Declare.
3454         * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in
3455         response to -Werror=.
3456         (c_common_init_options): Register warning_as_error_callback in opts.c.
3457         * common.opt: Add -Wno-cpp option.
3458         * c-common.c (struct reason_option_codes_t): Map cpp warning
3459         reason codes to gcc option indexes.
3460         * (c_option_controlling_cpp_error): New function, lookup the gcc
3461         option index for a cpp warning reason code.
3462         * (c_cpp_error): Add warning reason argument, call
3463         c_option_controlling_cpp_error for diagnostic_override_option_index.
3464         * doc/invoke.texi: Document -Wno-cpp.
3465
3466 2010-04-07  Richard Guenther  <rguenther@suse.de>
3467
3468         * ipa-reference.c (mark_load): Use get_base_address.
3469         (mark_store): Likewise.
3470
3471         * tree-ssa-ccp.c (gimplify_and_update_call_from_tree): Avoid
3472         inserting GIMPLE_NOPs into the IL.
3473         * tree-ssa-structalias.c (get_constraint_for_component_ref):
3474         Explicitly strip handled components and indirect references.
3475
3476         * fold-const.c (fold_unary_loc): Do not strip qualifiers when
3477         folding address expressions.
3478         * gimple.c (gimple_ior_addresses_taken_1): Use get_base_address.
3479         * tree-ssa-alias.c (decl_refs_may_alias_p): Do not use
3480         operand_equal_p to compare decls.
3481         (ptr_deref_may_alias_decl_p): Likewise.
3482         * tree-ssa-operands.c (get_asm_expr_operands): Simplify
3483         * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond):
3484         Handle reversed comparison ops.
3485         * tree-sra.c (asm_visit_addr): Use get_base_address.
3486         * ipa-prop.c (visit_store_addr_for_mod_analysis): Use get_base_address.
3487         * ipa-reference.c (mark_address): Use get_base_address.
3488
3489 2010-04-07  Richard Guenther  <rguenther@suse.de>
3490
3491         * tree-ssa-forwprop.c (forward_propagate_addr_expr):
3492         Propagate constants everywhere.
3493
3494 2010-04-07  Jakub Jelinek  <jakub@redhat.com>
3495
3496         PR debug/43516
3497         * tree.c (MAX_INT_CACHED_PREC): Define.
3498         (nonstandard_integer_type_cache): New array.
3499         (build_nonstandard_integer_type): Cache results for precision
3500         <= MAX_INT_CACHED_PREC.
3501
3502 2010-04-07  Richard Guenther  <rguenther@suse.de>
3503
3504         * doc/invoke.texi (-fargument-alias, -fargument-noalias,
3505         -fargument-noalias-global, -fargument-noalias-anything): Remove.
3506         * common.opt: Likewise.
3507         * tree-ssa-structalias.c (intra_create_variable_infos): Adjust comment.
3508         * alias.c (base_alias_check): Remove flag_argument_noalias handling.
3509         (nonoverlapping_memrefs_p): Likewise.
3510         * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
3511         * opts.c (common_handle_option): Handle OPT_fargument_alias,
3512         OPT_fargument_noalias, OPT_fargument_noalias_anything and
3513         OPT_fargument_noalias_global for backward compatibility.
3514
3515 2010-04-07  Richard Guenther  <rguenther@suse.de>
3516
3517         PR tree-optimization/43270
3518         * tree-vrp.c (check_array_ref): Fix flexible array member detection.
3519         * tree-ssa-sccvn.h (fully_constant_vn_reference_p): Declare.
3520         * tree-ssa-pre.c (phi_translate_1): Adjust.
3521         (fully_constant_expression): Split out vn_reference handling to ...
3522         * tree-ssa-sccvn.c (fully_constant_vn_reference_p): ... here.
3523         Fold reads from constant strings.
3524         (vn_reference_lookup): Handle fully constant references.
3525         (vn_reference_lookup_pieces): Likewise.
3526         * Makefile.in (expmed.o-warn): Add -Wno-error.
3527
3528 2010-04-07  Martin Jambor  <mjambor@suse.cz>
3529
3530         * tree-sra.c (find_param_candidates): Allow scalar va_list types.
3531
3532 2010-04-07  Iain Sandoe  <iains@gcc.gnu.org>
3533
3534         PR driver/41594
3535         * gcc.c: Add -static-libstdc++ to list of recognized options.
3536
3537 2010-04-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3538
3539         * config.gcc (i[34567]86-*-solaris2*): Default with_tune_32 to generic.
3540
3541 2010-04-07  Richard Guenther  <rguenther@suse.de>
3542
3543         PR middle-end/42617
3544         * expr.c (expand_expr_real_1): For TARGET_MEM_REFs with pointer
3545         bases build simple mem attributes to retain points-to information.
3546
3547 2010-04-07  Richard Guenther  <rguenther@suse.de>
3548
3549         PR middle-end/42617
3550         * alias.c (ao_ref_from_mem): Without MEM_OFFSET or MEM_SIZE
3551         preserve points-to related information.
3552
3553 2010-04-07  Richard Guenther  <rguenther@suse.de>
3554
3555         PR middle-end/42617
3556         * emit-rtl.c (set_mem_attributes_minus_bitpos): Do not
3557         discard plain indirect references.
3558         * fold-const.c (operand_equal_p): Guard against NULL_TREE type.
3559         * tree.c (tree_nop_conversion): Likewise.
3560
3561 2010-04-07  Dodji Seketeli  <dodji@redhat.com>
3562
3563         PR debug/43628
3564         * dwarf2out.c (modified_type_die): Ignore artificial typedefs.
3565
3566 2010-04-06  Kai Tietz  <kai.tietz@onevision.com>
3567
3568         * config/i386/i386.c (ix86_handle_cconv_attribute): Ignore
3569         calling convention attributes on METHOD_TYPEs for w64 ABI, too.
3570
3571 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
3572
3573         * tree-if-conv.c: Fix indentation and comments.
3574
3575 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
3576
3577         * tree-if-conv.c: Sort static functions in topological order.
3578
3579 2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>
3580
3581         * tree-if-conv.c: Fix indentation and comments.
3582
3583 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
3584
3585         PR middle-end/43519
3586         * graphite-clast-to-gimple.c (max_signed_precision_type): Use
3587         lang_hooks.types.type_for_size instead of
3588         build_nonstandard_integer_type.
3589         When converting an unsigned type to signed, double its precision.
3590         (gcc_type_for_interval): Use lang_hooks.types.type_for_size.
3591         (gcc_type_for_iv_of_clast_loop): Call max_signed_precision_type.
3592         (graphite_create_new_loop_guard): When ub + 1 wraps around,
3593         use lb <= ub.
3594
3595 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
3596
3597         PR middle-end/43519
3598         * graphite-clast-to-gimple.c (graphite_create_new_loop_guard): Use
3599         POINTER_PLUS_EXPR for pointer types.
3600
3601 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
3602
3603         PR middle-end/43519
3604         * Makefile.in (graphite-clast-to-gimple.o): Depends on langhooks.h.
3605         * graphite-clast-to-gimple.c: Include langhooks.h.
3606         (max_signed_precision_type): New.
3607         (max_precision_type): Takes two types as arguments.
3608         (precision_for_value): New.
3609         (precision_for_interval): New.
3610         (gcc_type_for_interval): New.
3611         (gcc_type_for_value): New.
3612         (gcc_type_for_clast_term): New.
3613         (gcc_type_for_clast_red): New.
3614         (gcc_type_for_clast_bin): New.
3615         (gcc_type_for_clast_expr): Split up into several functions.
3616         (gcc_type_for_clast_eq): Rewritten.
3617         (compute_bounds_for_level): New.
3618         (compute_type_for_level_1): New.
3619         (compute_type_for_level): New.
3620         (gcc_type_for_cloog_iv): Removed.
3621         (gcc_type_for_iv_of_clast_loop): Rewritten.
3622         (graphite_create_new_loop): Compute the lower and upper bound types
3623         with gcc_type_for_clast_expr.
3624         (graphite_create_new_loop_guard): Same.
3625         (find_cloog_iv_in_expr): Removed.
3626         (compute_cloog_iv_types_1): Removed.
3627         (compute_cloog_iv_types): Removed.
3628         (gloog): Do not call compute_cloog_iv_types.
3629         * graphite-sese-to-poly.c (new_gimple_bb): Do not initialize
3630         GBB_CLOOG_IV_TYPES.
3631         (free_data_refs_aux): Do not free GBB_CLOOG_IV_TYPES.
3632         * sese.h (struct gimple_bb): Removed field cloog_iv_types.
3633         (GBB_CLOOG_IV_TYPES): Removed.
3634
3635 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
3636
3637         * graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Assert that
3638         gimple_phi_num_args of the loop close SSA phi node is equal to 1.
3639         (detect_commutative_reduction): Same.
3640
3641 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
3642
3643         * graphite-clast-to-gimple.c (graphite_verify): Remove redundant
3644         call to verify_ssa.  Invoke verify_loop_closed_ssa with an extra
3645         argument.
3646         * graphite-scop-detection.c (canonicalize_loop_closed_ssa_form): Same.
3647         * graphite-sese-to-poly.c (rewrite_reductions_out_of_ssa): Same.
3648         (rewrite_commutative_reductions_out_of_ssa): Same.
3649         * passes.c (execute_function_todo): Call verify_ssa for every pass
3650         in the LNO.  Invoke verify_loop_closed_ssa with an extra argument.
3651         * tree-flow.h (verify_loop_closed_ssa): Update declaration.
3652         * tree-parloops.c (parallelize_loops): Invoke verify_loop_closed_ssa
3653         with an extra argument.
3654         * tree-ssa-loop-manip.c (check_loop_closed_ssa_stmt): Same.  Call
3655         verify_ssa only when the extra argument is true.
3656         (gimple_duplicate_loop_to_header_edge): Invoke verify_loop_closed_ssa
3657         with an extra argument.
3658         (tree_transform_and_unroll_loop): Same.
3659
3660 2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>
3661
3662         * passes.c (execute_function_todo): Call verify_loop_closed_ssa
3663         for all the passes of the LNO having LOOP_CLOSED_SSA.
3664         * tree-if-conv.c (pass_if_conversion): Remove TODO_verify_loops.
3665         * tree-loop-distribution.c (pass_loop_distribution): Same.
3666         * tree-pass.h (TODO_verify_loops): Removed.
3667         * tree-ssa-loop.c (pass_tree_loop_init): Same.
3668         (pass_lim): Same.
3669         (pass_tree_unswitch): Same.
3670         (pass_predcom): Same.
3671         (pass_vectorize): Same.
3672         (pass_linear_transform): Same.
3673         (pass_graphite_transforms): Same.
3674         (pass_iv_canon): Same.
3675         (pass_complete_unroll): Same.
3676         (pass_complete_unrolli): Same.
3677         (pass_parallelize_loops): Same.
3678         (pass_loop_prefetch): Same.
3679         (pass_iv_optimize): Same.
3680
3681 2010-04-06  Changpeng Fang  <changpeng.fang@amd.com>
3682
3683         PR middle-end/32824
3684         * passes.c (init_optimization_passes): Move pass_lim before
3685         pass_copy_prop and pass_dce_loop.
3686
3687 2010-04-06  Jakub Jelinek  <jakub@redhat.com>
3688
3689         PR target/43667
3690         * config/i386/i386.c (bdesc_multi_arg): Use OPTION_MASK_ISA_XOP
3691         instead of OPTION_MASK_ISA_AVX for __builtin_ia32_vpermil2p*.
3692         (ix86_expand_args_builtin): Use V*_FTYPE_* enum codes instead of
3693         MULTI_* defines for 4 argument vpermil2p* builtins.
3694
3695 2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
3696
3697         * config/i386/i386-protos.h (x86_maybe_negate_const_int): Declare.
3698         * config/i386/i386.c (x86_maybe_negate_const_int): New.
3699         (x86_output_mi_thunk): Use x86_maybe_negate_const_int.
3700         * config/i386/i386.md (*add<mode>_1, *addsi_1_zext, *addhi_1,
3701         *addhi_1_lea, *addqi_1, *addqi_1_lea, *addqi_1_slp, *add<mode>_2,
3702         *addsi_2_zext, *addhi_2, *addqi_2, *add<mode>_3, *addsi_3_zext,
3703         *addhi_3, *addqi_3,*add<mode>_5, *addhi_5, *addqi_5):
3704         Use x86_maybe_negate_const_int to output insn mnemonic.
3705         (*adddi_4, *addsi_4, *addhi_4, *addqi_4): Ditto.  Remove overflow
3706         check from instruction predicate.  Update comments.
3707         * config/i386/sync.md (sync_add<mode>): Use
3708         x86_maybe_negate_const_int to output insn mnemonic.
3709
3710 2010-04-06  Jan Hubicka  <jh@suse.cz>
3711
3712         PR tree-optimization/42906
3713         * tree-ssa-dce.c (mark_control_dependent_edges_necessary): Add
3714         IGNORE_SELF argument.  Set visited_control_parents for fully
3715         processed BBs.
3716         (find_obviously_necessary_stmts): Update call of
3717         mark_control_dependent_edges_necessary.
3718         (propagate_necessity): Likewise.  Handle PHI edges more curefully.
3719
3720 2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
3721
3722         * config/i386/i386.md: Remove comment about 'e' and 'E'
3723         operand modifier.
3724
3725 2010-04-06  Richard Guenther  <rguenther@suse.de>
3726
3727         PR tree-optimization/43627
3728         * tree-vrp.c (extract_range_from_unary_expr): Widenings
3729         of [1, +INF(OVF)] go to [1, +INF(OVF)] of the wider type,
3730         not varying.
3731
3732 2010-04-06  Jakub Jelinek  <jakub@redhat.com>
3733
3734         * BASE-VER: Change to 4.6.0.
3735
3736         PR target/43638
3737         * config/i386/i386.c (print_operand): Remove 'e' and 'E' code
3738         handling.
3739
3740 2010-04-06  Richard Guenther  <rguenther@suse.de>
3741
3742         PR middle-end/43661
3743         * fold-const.c (fold_comparison): Handle X * 0 CMP 0.
3744
3745 2010-04-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3746
3747         * doc/invoke.texi (Optimize Options): Document that LTO
3748         won't remove object access purely due to incompatible
3749         declarations.
3750
3751 2010-04-04  Matthias Klose  <doko@ubuntu.com>
3752
3753         * graphite-sese-to-poly.c (translate_scalar_reduction_to_array):
3754         Initialize variable.
3755
3756 2010-04-03  Richard Guenther  <rguenther@suse.de>
3757
3758         PR middle-end/42509
3759         * alias.c (nonoverlapping_memrefs_p): For spill-slot accesses
3760         require a non-NULL MEM_OFFSET.
3761
3762 2010-04-02  Steven Bosscher  <steven@gcc.gnu.org>
3763
3764         * ada/gcc-interface/Make-lang.in, alias.c, attribs.c, auto-inc-dec.c,
3765         basic-block.h, bb-reorder.c, calls.c, c-common.c, cgraph.h,
3766         collect2.h, config/alpha/alpha.c, config/alpha/alpha.md,
3767         config/alpha/predicates.md, config/arm/arm.md,
3768         config/arm/lib1funcs.asm, config/arm/neon-schedgen.ml,
3769         config/avr/avr.c, config/avr/avr.md, config/bfin/bfin.c,
3770         config/darwin9.h, config/darwin.c, config/darwin.h,
3771         config/h8300/h8300.c, config/i386/cpuid.h, config/i386/cygming.h,
3772         config/i386/cygwin.h, config/i386/mingw32.h, config/i386/msformat-c.c,
3773         config/i386/sol2-10.h, config/i386/xopintrin.h, config/ia64/ia64.c,
3774         config/ia64/ia64.md, config/ia64/sync.md, config/mep/mep.c,
3775         config/mips/mips.md, config/mn10300/mn10300.c,
3776         config/mn10300/mn10300.h, config/pa/pa.c, config/pa/pa.md,
3777         config/rs6000/aix.h, config/rs6000/dfp.md,
3778         config/rs6000/rs6000-builtin.def, config/rs6000/rs6000-c.c,
3779         config/rs6000/vector.md, config/rtems.h, config/rx/rx.md,
3780         config/s390/s390.md, config/sol2-c.c, config/sparc/sol2-bi.h,
3781         config/sparc/sol2-gas.h, config/sparc/sparc.h, config/sparc/sparc.md,
3782         config/sparc/sparc-protos.h, config/spu/spu.c, config/spu/spu-c.c,
3783         config/t-darwin, convert.c, c.opt, c-opts.c, cp/Make-lang.in,
3784         c-pretty-print.c, c-typeck.c, df-core.c, df-scan.c, diagnostic.c,
3785         diagnostic.h, doc/cppopts.texi, doc/cpp.texi, doc/extend.texi,
3786         doc/gimple.texi, doc/languages.texi, doc/plugins.texi, doc/rtl.texi,
3787         doc/standards.texi, doc/tree-ssa.texi, doc/trouble.texi, dominance.c,
3788         fold-const.c, fortran/Make-lang.in, fwprop.c, gcc-plugin.h,
3789         gensupport.c, gimple.h, gimple-iterator.c, graphite.c,
3790         graphite-clast-to-gimple.c, graphite-clast-to-gimple.h,
3791         graphite-dependences.c, graphite-poly.c, graphite-poly.h,
3792         graphite-ppl.c, graphite-ppl.h, graphite-scop-detection.c,
3793         graphite-sese-to-poly.c, graphite-sese-to-poly.h, ifcvt.c, intl.c,
3794         intl.h, ipa.c, ipa-cp.c, ipa-inline.c, ipa-prop.c, ipa-prop.h,
3795         ipa-pure-const.c, ipa-reference.c, ipa-type-escape.c, ira-color.c,
3796         ira-conflicts.c, ira-lives.c, java/Make-lang.in, lambda-code.c,
3797         loop-invariant.c, lto/Make-lang.in, lto-streamer.h, lto-streamer-in.c,
3798         objc/Make-lang.in, objcp/Make-lang.in, omp-low.c, optc-gen.awk,
3799         opt-functions.awk, opth-gen.awk, params.def, passes.c,
3800         postreload-gcse.c, print-tree.c, recog.c, regrename.c, reload.h,
3801         rtl.def, sched-int.h, sched-rgn.c, sel-sched-dump.c, sese.c, sese.h,
3802         store-motion.c, stor-layout.c, tree-cfgcleanup.c, tree-chrec.c,
3803         tree-complex.c, tree-data-ref.c, tree.def, tree-eh.c, tree-flow.h,
3804         tree-flow-inline.h, tree.h, tree-loop-distribution.c, tree-outof-ssa.c,
3805         tree-parloops.c, tree-pass.h, tree-predcom.c, tree-profile.c,
3806         tree-scalar-evolution.c, tree-ssa-address.c, tree-ssa-alias.c,
3807         tree-ssa-coalesce.c, tree-ssa-copy.c, tree-ssa-dce.c, tree-ssa-dom.c,
3808         tree-ssa-dse.c, tree-ssa-loop-im.c, tree-ssa-loop-ivcanon.c,
3809         tree-ssa-loop-manip.c, tree-ssa-math-opts.c, tree-ssa-operands.c,
3810         tree-ssa-pre.c, tree-ssa-sccvn.c, tree-ssa-structalias.c,
3811         tree-ssa-uncprop.c, tree-tailcall.c, tree-vect-data-refs.c,
3812         tree-vect-loop.c, tree-vectorizer.h, tree-vect-slp.c, tree-vrp.c,
3813         unwind-dw2-fde-darwin.c, varpool.c: Update copyright years.
3814
3815 2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3816
3817         PR other/43620
3818         * doc/install.texi (Prerequisites): Bump Automake version to 1.11.1.
3819         * aclocal.m4: Regenerate.
3820
3821 2010-04-02  Richard Guenther  <rguenther@suse.de>
3822
3823         PR tree-optimization/43629
3824         * tree-ssa-ccp.c (likely_value): Reset all_undefined_operands
3825         if we have seen a constant value.
3826
3827 2010-04-02  Joseph Myers  <joseph@codesourcery.com>
3828
3829         * read-rtl.c (read_rtx_1): Give an error for EOF while looking for ']'.
3830
3831 2010-04-02  Richard Earnshaw  <rearnsha@arm.com>
3832
3833         PR target/43469
3834         * arm.c (legitimize_tls_address): Adjust call to
3835         gen_tls_load_dot_plus_four.
3836         (arm_note_pic_base): New function.
3837         (arm_cannot_copy_insn_p): Use it.
3838         * thumb2.md (tls_load_dot_plus_four): Rework to avoid use of '+' in
3839         constraint.
3840
3841 2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3842
3843         PR bootstrap/43531
3844
3845         Revert:
3846         2009-09-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3847
3848         * Makefile.in ($(out_object_file)): Depend on
3849         gt-$(basename $(notdir $(out_file))).h.
3850
3851 2010-04-01  Ralf Corsépius <ralf.corsepius@rtems.org>
3852
3853         * config.gcc (lm32-*-rtems*): Add t-lm32.
3854
3855 2010-04-01  Joel Sherrill <joel.sherrill@oarcorp.com>
3856
3857         * config.gcc: Add lm32-*-rtems*.
3858         * config/lm32/rtems.h: New file.
3859
3860 2010-04-01  Dave Korn  <dave.korn.cygwin@gmail.com>
3861
3862         PR target/42609
3863         * config/i386/cygwin.h (CXX_WRAP_SPEC): Disable spec when -mno-cygwin.
3864
3865 2010-04-01  Jakub Jelinek  <jakub@redhat.com>
3866
3867         * dwarf2out.c (output_compilation_unit_header): For
3868         -gdwarf-4 use version 4 instead of version 3.
3869         (output_line_info): For version 4 and above emit additional
3870         maximum ops per insn header field.
3871         (DWARF_LINE_DEFAULT_MAX_OPS_PER_INSN): Define.
3872
3873         * dwarf2out.c (is_c_family, is_java): Remove.
3874         (lower_bound_default): New function.
3875         (add_bound_info, gen_descr_array_type_die): Use it.
3876
3877 2010-04-01  Dodji Seketeli  <dodji@redhat.com>
3878
3879         PR debug/43325
3880         * dwarf2out.c (gen_variable_die): Allow debug info for variable
3881         re-declaration when it happens in a function.
3882
3883 2010-04-01  Aldy Hernandez  <aldyh@redhat.com>
3884
3885         * cgraph.c (cgraph_add_function_insertion_hook): Update comment.
3886         (cgraph_remove_function_insertion_hook): Same.
3887         (cgraph_call_function_insertion_hooks): Same.
3888
3889 2010-04-01  Richard Guenther  <rguenther@suse.de>
3890
3891         PR middle-end/43614
3892         * tree-ssa-address.c (copy_mem_ref_info): Copy TREE_SIDE_EFFECTS
3893         and TREE_THIS_VOLATILE.
3894         (copy_ref_info): Likewise.
3895         * tree-ssa-operands.c (get_tmr_operands): Check TREE_THIS_VOLATILE.
3896         * tree.c (build6_stat): Ignore side-effects of all but arg5
3897         for TARGET_MEM_REF.  Set TREE_THIS_VOLATILE from arg5 of
3898         TARGET_MEM_REF.
3899
3900 2010-04-01  Richard Guenther  <rguenther@suse.de>
3901
3902         PR tree-optimization/43607
3903         * ipa-type-escape.c (check_call): Do not access non-existing
3904         arguments.
3905
3906 2010-04-01  Richard Guenther  <rguenther@suse.de>
3907
3908         PR middle-end/43602
3909         Revert
3910         2010-03-30  Seongbae Park <seongbae.park@gmail.com>
3911                     Jack Howarth <howarth@bromo.med.uc.edu>
3912
3913         * tree-profile.c (tree_init_ic_make_global_vars): Make static
3914         variables TLS.
3915
3916 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3917
3918         * doc/install.texi (Prerequisites): Document libelf usability on
3919         IRIX 5/6 and Solaris 2.
3920         (Specific, i?86-*-solaris2.10): No 64-bit default configuration.
3921         Update GNU as, GNU ld requirements.
3922         (Specific, *-*-solaris2*): Document Solaris 7 obsoletion, removal.
3923         Document Sun Studio compiler download.
3924         Update and simplify as, ld recommendations.
3925         (Specific, *-*-solaris2.7): Note obsoletion, removal.
3926
3927 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3928
3929         * config.gcc (i[34567]86-*-solaris2*): Default with_arch_32,
3930         with_tune_32 to pentium4.
3931
3932 2010-04-01  Uros Bizjak  <ubizjak@gmail.com>
3933
3934         * config/i386/cpuid.h (__get_cpuid_max): Move misplaced comment.
3935
3936 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3937
3938         * doc/install.texi (Specific, mips-sgi-irix5): Document IRIX 5
3939         obsoletion, removal.
3940         Update IDO URL.
3941         Document GNU as requirement.
3942         Update configure requirements.
3943         (Specific, mips-sgi-irix6): Document IRIX 6 < 6.5 obsoletion, removal.
3944         Recomment IRIX 6.5.18+.
3945         Document IDF/IDL requirement.
3946         Document GNU as requirement.
3947         Document GNU ld bootstrap failure.
3948         Remove freeware.sgi.com reference.
3949
3950 2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3951
3952         * doc/install.texi (Specific, alpha*-dec-osf*): Document Tru64
3953         UNIX V4.0, V5.0 obsoletion, removal.
3954         Remove --with-gc=simple reference.
3955         Update VM requirements during bootstrap.
3956         Remove -oldas bootstrap description.
3957         Update binutils reference.
3958         Remove comparison failure note.
3959
3960 2010-03-31  Richard Guenther  <rguenther@suse.de>
3961             Zdenek Dvorak  <ook@ucw.cz>
3962             Sebastian Pop  <sebastian.pop@amd.com>
3963
3964         PR middle-end/43464
3965         * tree-ssa-copy.c (init_copy_prop): Handle loop close phi nodes
3966         with multiple arguments.
3967         (execute_copy_prop): Remove call to rewrite_into_loop_closed_ssa.
3968
3969 2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>
3970
3971         * graphite-dependences.c (print_pddr): Call print_pdr with an
3972         extra argument.
3973         * graphite-poly.c (debug_pdr): Add an extra argument for the
3974         verbosity level.
3975         (print_pdr): Same.
3976         (print_pbb_domain): Same.
3977         (print_pbb): Same.
3978         (print_scop_context): Same.
3979         (print_scop): Same.
3980         (print_cloog): Same.
3981         (debug_pbb_domain): Same.
3982         (debug_pbb): Same.
3983         (print_pdrs): Same.
3984         (debug_pdrs): Same.
3985         (debug_scop_context): Same.
3986         (debug_scop): Same.
3987         (debug_cloog): Same.
3988         (print_scop_params): Same.
3989         (debug_scop_params): Same.
3990         (print_iteration_domain): Same.
3991         (print_iteration_domains): Same.
3992         (debug_iteration_domain): Same.
3993         (debug_iteration_domains): Same.
3994         (print_scattering_function): Same.
3995         (print_scattering_functions): Same.
3996         (debug_scattering_function): Same.
3997         (debug_scattering_functions): Same.
3998         * graphite-poly.h (debug_pdr): Update declaration.
3999         (print_pdr): Same.
4000         (print_pbb_domain): Same.
4001         (print_pbb): Same.
4002         (print_scop_context): Same.
4003         (print_scop): Same.
4004         (print_cloog): Same.
4005         (debug_pbb_domain): Same.
4006         (debug_pbb): Same.
4007         (print_pdrs): Same.
4008         (debug_pdrs): Same.
4009         (debug_scop_context): Same.
4010         (debug_scop): Same.
4011         (debug_cloog): Same.
4