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