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