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