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1 2006-02-23  Jeff Law  <law@redhat.com>
2
3         PR tree-optimization/26425
4         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
5         min/max, then assume its varying.
6
7 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
8
9         PR rtl-optimization/26316
10         * rtlanal.c (enum may_trap_p_flags): New.
11         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
12         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
13         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
14         (may_trap_after_code_motion_p): New function.
15         * loop-invariant.c (find_identical_invariants): Fix dump formating.
16         (find_invariant_insn): Use may_trap_after_code_motion_p.
17         * rtl.h (may_trap_after_code_motion_p): Declare.
18
19 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
20
21         * emit-rtl.c (immed_double_const): Cleanup.
22
23 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
24         
25         Fix PR tree-optimization/26376
26         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
27         remove assert.
28
29 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
30
31         PR middle-end/26412
32         * gimplify.c (omp_add_variable): Guard variable size decl test with
33         DECL_SIZE (decl) check.
34
35 2006-02-23  Richard Guenther  <rguenther@suse.de>
36
37         PR middle-end/26439
38         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
39         like aggregate types.
40
41 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
42
43         * configure.ac: Add --with{,out}-long-double-128 configure option.
44         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
45         * configure: Rebuilt.
46         * config.in: Rebuilt.
47         * doc/install.texi (Options specification): Document
48         --with-long-double-128.
49
50         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
51         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
52         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
53         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
54
55 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
56
57         * config/s390/s390.c (override_options): Handle
58         TARGET_DEFAULT_LONG_DOUBLE_128.
59
60         * config/alpha/alpha.c (override_options): Handle
61         TARGET_DEFAULT_LONG_DOUBLE_128.
62
63         * config/sparc/sparc.c (sparc_override_options): Handle
64         TARGET_DEFAULT_LONG_DOUBLE_128.
65
66 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
67
68         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
69         (real-install-headers-tar, real-install-headers-cpio)
70         (real-install-headers-cp): New targets.
71
72 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
73
74         * tree.h (variable_section): Delete.
75         * varasm.c (variable_section): Delete.
76
77 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
78
79         * install.texi: Add notes on install.texi2html.
80         (Building in parallel): Do not use footnotes.
81
82 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
83
84         PR libgomp/26234
85         * doc/install.texi (Configuration): Document --disable-libgomp.
86
87 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
88
89         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
90
91 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
92
93         * config/i386/sse.md (vec_extractv2df_1_sse): New.
94         (vec_extractv2df_0_sse): New.
95
96 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
97
98         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
99         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
100         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
101         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
102         to the result of the expression.
103         (def_cfa_1): Adjust.
104         (frame_pointer_cfa_offset): Rename to...
105         (frame_pointer_fb_offset): ... this.  Adjust all uses.
106         (convert_cfa_to_loc_list): Rename to...
107         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
108         Pass it on to build_cfa_loc.
109         (compute_frame_pointer_to_cfa_displacement): Rename to...
110         (compute_frame_pointer_to_fb_displacement): ... this.  New
111         offset parameter.  Use it in computation.
112         (gen_subprogram_die): Compute cfa_fb_offset with the new
113         macro, and use it to compute the fb loc list and the
114         displacement.
115
116 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
117
118         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
119         replaced with register_operand.
120         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
121         non-DREG is expensive.
122         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
123         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
124         involving memory.
125
126 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
127
128         * doc/install.texi2html: Use set -e.
129
130 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
131
132         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
133         (ASM_OUTPUT_SHARED_LOCAL): Delete.
134         * doc/invoke.texi (-fshared-data): Delete.
135         * common.opt (fshared-data): Delete.
136         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
137         (assemble_static_space): Remove #if 0 code.
138         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
139         (ASM_OUTPUT_SHARED_LOCAL): Poison.
140         * config/cris/cris.h: Remove FIXME.
141
142 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
143
144         * doc/sourcebuild.texi (Front End Directory): No more double-colon
145         hooks.
146
147 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
148
149         PR middle-end/26379
150         * combine.c (simplify_shift_const_1): Disable nested shifts
151         optimization for vector shifts.
152
153 2006-02-20  Roger Sayle  <roger@eyesopen.com>
154
155         PR tree-optimization/26361
156         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
157         of unsigned integer types.
158
159 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
160
161         * tree-chrec.c (eq_evolutions_p): New.
162         * tree-chrec.h (eq_evolutions_p): Declared.
163         * tree-data-ref.c: Fix formatting.
164         (datadep_stats, dependence_stats): New.
165         (gcd): Moved...
166         (print_direction_vector): New.
167         (dump_data_dependence_relation): Use print_direction_vector.
168         (object_analysis, create_data_ref): Handle COMPONENT_REF.
169         (compute_subscript_distance): Static.
170         (initialize_data_dependence_relation): Static.  Get the number
171         of loops surrounding the references from the callers, and initialize
172         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
173         base_object_differ_p analyzers.
174         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine, 
175         compute_overlap_steps_for_affine_1_2,
176         analyze_subscript_affine_affine): Count the classified dependences.
177         Print a message when a test failed.
178         (can_use_analyze_subscript_affine_affine): New. 
179         (analyze_siv_subscript): Compute the data dependences on symbolic
180         scevs that verify can_use_analyze_subscript_affine_affine.
181         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
182         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
183         Handle symbolic scevs.
184         (analyze_overlapping_iterations): Let symbolic affine scevs to be
185         analyzed.
186         (subscript_dependence_tester): Moved...
187         (build_classic_dist_vector, build_classic_dir_vector): Don't use 
188         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
189         DDR_SIZE_VECT instead of getting it in parameter.
190         (subscript_dependence_tester): ... here.  Take as a parameter 
191         loop_nest_depth.  Call build_classic_dist_vector and
192         build_classic_dir_vector.
193         (compute_affine_dependence): Update subscript_dependence_tester 
194         parameters.  Update datadep_stats counters.  Call 
195         compute_subscript_distance.
196         (compute_self_dependence): Save the dist and dir vectors.  Call 
197         compute_subscript_distance.
198         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
199         (compute_all_dependences): Reorder parameters as they were before
200         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
201         compute_subscript_distance.  Update the use of 
202         compute_affine_dependence and initialize_data_dependence_relation.
203         (find_data_references_in_loop): Handle COMPONENT_REF.
204         (compute_data_dependences_for_loop): Initialize dependence_stats.
205         Don't call build_classic_dist_vector and build_classic_dir_vector.
206         Update the parameters of initialize_data_dependence_relation and 
207         compute_all_dependences.  Print the statistics from datadep_stats.
208         (analyze_all_data_dependences): Static.  Not used until the pass for
209         checking the data dependences is contributed.
210         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
211         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
212         (initialize_data_dependence_relation, compute_affine_dependence, 
213         analyze_all_data_dependences, compute_subscript_distance): Removed.
214         (print_direction_vector): New.
215         * lambda.h (gcd): ... here.
216         (lambda_vector_gcd): Moved here from gcd_vector.
217         * lambda-code.c (gcd, gcd_vector): Removed.
218         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
219         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
220
221 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
222
223         * ipa-type-escape.c: Tidy some comments and white space.
224         * tree-ssa-operands.c: Likewise.
225
226 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
227
228         PR tree-opt/25879
229         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
230         (dump_decl_name): Do not walk the decl tree chains.
231         * tree-pass.h (TDF_CHAIN): Remove.
232
233 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
234
235         * Makefile.in (C): Remove
236         (PROTO): Remove
237         (.PHONY): Remove C and PROTO
238
239 2006-02-20  Roger Sayle  <roger@eyesopen.com>
240
241         PR middle-end/26236
242         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
243         deprecated CHAR_TYPE tree code.
244
245 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
246
247         * configure.ac (target_list): Add install-info, dvi, html.
248         * configure: Regenerate.
249
250         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
251         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
252         treelang/Make-lang.in: Do not use double-colon rules.
253
254 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
255
256         * tree.h (struct tree_memory_tag): Add is_used_alone member.
257         (TMT_USED_ALONE): New macro.
258         * tree-pass.h (PROP_tmt_usage): New property.
259         (TODO_update_tmt_usage): New todo.
260         * tree-ssa-alias.c (updating_used_alone): New variable.
261         (recalculate_used_alone): New function.   
262         (compute_may_aliases): Set updating_used_alone, call
263         recalculate_used_alone. 
264         * tree-sra.c (pass_sra): Note that this pass destroys
265         PROP_tmt_usage, and add TODO_update_tmt_usage.
266         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
267         * tree-flow.h (updating_used_alone): Prototype.
268         (recalculate_used_alone): Ditto.
269         * passes.c (execute_todo): Add code to set updating_used_alone,
270         and call recalculate.
271         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
272         for clobber if used alone, and add assert to verify used_alone
273         status.
274         
275 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
276
277         * config/s390/s390.c (legitimize_pic_address): Assertions checking
278         for non tls symbols added.
279         (legitimize_address): Do nothing for PLUS expressions if one of the
280         addends is a tls symbol reference.
281
282 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
283
284         PR bootstrap/25476
285
286         * Makefile.in (LDFLAGS): Define from autoconf substitution.
287
288         * Makefile.in (BOOTSTRAPPING): New.
289         (quickstrap): New definition if BOOTSTRAPPING=yes.
290
291         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
292         * configure.ac: Substitute all_selected_languages with the languages
293         that were configured.  For all the other variables except
294         lang_specs_files, include all the languages in the tree.
295         * configure: Regenerate.
296         
297         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
298         if there is one.  Run the commands to run fixincludes in the same
299         subshell.
300
301         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
302         * doc/install.texi: Document exact conventions for searching target tools.
303         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
304         something more about building an Ada cross-compiler.  Don't list GNU Make
305         requirements which affect all platforms.
306
307 2006-02-19  Roger Sayle  <roger@eyesopen.com>
308
309         PR middle-end/19543
310         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
311         only equivalent if the have both the same mode and precision.
312
313 2006-02-20  Ben Elliston  <bje@au.ibm.com>
314
315         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
316
317 2006-02-19  Roger Sayle  <roger@eyesopen.com>
318             Steven Bosscher  <stevenb.gcc@gmail.com>
319
320         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
321         constant pool references to identify stack mode constants.
322         * rtlanal.c (constant_pool_constant_p): New predicate to check
323         whether operand is a floating point constant in the pool.
324         * rtl.h (constant_pool_constant_p): Prototype here.
325         * loop.c (scan_loop): Avoid hoisting constants from the constant
326         pool on STACK_REGS targets.
327         (load_mems): Likewise.
328         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
329         loads into x87 registers expensive in terms of register pressure.
330
331 2006-02-19  Roger Sayle  <roger@eyesopen.com>
332
333         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
334         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
335
336 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
337
338         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
339         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
340
341 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
342
343         * doc/invoke.texi: Document -fipa-pta.
344         * common.opt: Add ipa-pta option.
345         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
346         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
347         (do_ds_constraint): Ditto.
348         (get_constraint_for): Only add to referenced_vars if
349         referenced_vars exists.
350         (insert_into_field_list): Rewrite to do this unsorted.
351         (insert_into_field_list_sorted): Rename old insert_into_field_list
352         to this.
353         (create_function_info_for): Use insert_into_field_list_sorted.
354         (create_variable_info_for): Rewrite so it uses unsorted version,
355         since the field list is sorted.
356         (intra_create_variable_infos): Only add to referenced_vars if
357         referenced_vars exists.
358         (ipa_pta_execute): Init heapvars, and delete when done.
359         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
360
361 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
362
363         * doc/install.texi: Add missing `@samp'.
364
365 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
366
367         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
368         Use the arguments.
369
370 2006-02-18  Mark Wielaard  <mark@klomp.org>
371
372         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
373         who added new 4.1 features, bug fixes and integration support.
374
375 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
376
377         PR target/26350
378         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
379         MEM for ABI_V4 pic.
380
381 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
382
383         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
384         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
385         (copy_insn_1): Likewise.  Don't copy each field individually.
386         Reindent.
387         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
388         of RTX_SIZE.
389         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
390         * rtl.c (rtx_size): Rename variable to...
391         (rtx_code_size): ...this.
392         (rtx_size): New function.
393         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
394         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
395         Reindent.
396         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
397         * rtl.h (rtx_code_size): New variable.
398         (rtx_size): Change from a variable to a function.
399         (RTX_SIZE): Rename to...
400         (RTX_CODE_SIZE): ...this.
401
402         PR target/9703
403         PR tree-optimization/17106
404         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
405         (Anchored Addresses): New section.
406         * doc/invoke.texi (-fsection-anchors): Document.
407         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
408         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
409         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
410         * hooks.c (hook_bool_mode_rtx_false): New function.
411         * hooks.h (hook_bool_mode_rtx_false): Declare.
412         * gengtype.c (create_optional_field): New function.
413         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
414         SYMBOL_REF_IN_BLOCK_P is true.
415         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
416         (min_anchor_offset, max_anchor_offset): Likewise.
417         (use_anchors_for_symbol_p): New hook.
418         * toplev.c (compile_file): Call output_object_blocks.
419         (target_supports_section_anchors_p): New function.
420         (process_options): Check that -fsection-anchors is only used on
421         targets that support it and when -funit-at-a-time is in effect.
422         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
423         if the decl doesn't have one.
424         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
425         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
426         of force_const_mem through use_anchored_address.
427         (expand_expr_constant): New function.
428         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
429         calling expand_expr for INDIRECT_REF.
430         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
431         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
432         * expr.h (use_anchored_address): Declare.
433         * loop-unroll.c: Don't declare rtx vectors here.
434         * explow.c: Include output.h.
435         (validize_mem): Call use_anchored_address.
436         (use_anchored_address): New function.
437         * common.opt (-fsection-anchors): New switch.
438         * varasm.c (object_block_htab, anchor_labelno): New variables.
439         (hash_section, object_block_entry_eq, object_block_entry_hash)
440         (use_object_blocks_p, get_block_for_section, create_block_symbol)
441         (use_blocks_for_decl_p, change_symbol_section): New functions.
442         (get_variable_section): New function, split out from assemble_variable.
443         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
444         use_blocks_for_decl_p say so.  Use change_symbol_section if the
445         symbol has already been created.
446         (assemble_variable_contents): New function, split out from...
447         (assemble_variable): ...here.  Don't output any code for
448         block symbols; just pass them to place_block_symbol.
449         Use get_variable_section and assemble_variable_contents.
450         (get_constant_alignment, get_constant_section, get_constant_size): New
451         functions, split from output_constant_def_contents.
452         (build_constant_desc): Create a block symbol if use_object_blocks_p
453         says so.  Or into SYMBOL_REF_FLAGS.
454         (assemble_constant_contents): New function, split from...
455         (output_constant_def_contents): ...here.  Don't output any code
456         for block symbols; just pass them to place_section_symbol.
457         Use get_constant_section and get_constant_alignment.
458         (force_const_mem): Create a block symbol if use_object_blocks_p and
459         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
460         (output_constant_pool_1): Add an explicit alignment argument.
461         Don't switch sections here.
462         (output_constant_pool): Adjust call to output_constant_pool_1.
463         Switch sections here instead.  Don't output anything for block symbols;
464         just pass them to place_block_symbol.
465         (init_varasm_once): Initialize object_block_htab.
466         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
467         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
468         (place_block_symbol, get_section_anchor, output_object_block)
469         (output_object_block_htab, output_object_blocks): New functions.
470         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
471         (TARGET_ASM_OUT): Include it.
472         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
473         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
474         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
475         (TARGET_INITIALIZER): Include them.
476         * rtl.c (rtl_check_failed_block_symbol): New function.
477         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
478         (block_symbol, object_block): New structures.
479         (rtx_def): Add a block_symbol field to the union.
480         (BLOCK_SYMBOL_CHECK): New macro.
481         (rtl_check_failed_block_symbol): Declare.
482         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
483         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
484         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
485         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
486         * output.h (output_section_symbols): Declare.
487         (object_block): Name structure.
488         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
489         (default_use_anchors_for_symbol_p): Declare.
490         * Makefile.in (RTL_BASE_H): Add vec.h.
491         (explow.o): Depend on output.h.
492         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
493         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
494         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
495         (rs6000_use_blocks_for_constant_p): New function.
496
497 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
498
499         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
500
501 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
502
503         PR tree-opt/25680
504         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
505         IMAGPART_EXPR.
506
507 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
508
509         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
510         is_aliased.
511         Update all users.
512
513 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
514
515         PR middle-end/26334
516         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
517         instead of DECL_REGISTER.
518
519 2006-02-18  Olivier Hainque  <hainque@adacore.com>
520
521         PR ada/13408
522         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
523
524 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
525
526         PR target/24837
527         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
528         * opth-gen.awk: Handle Var and InverseMask together.
529         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
530         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
531         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
532         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
533         used together.
534         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
535         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
536         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
537         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
538         LINUX_DYNAMIC_LINKER): Define.
539         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
540         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
541         TARGET_GLIBC.
542         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
543         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
544         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
545         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
546         (TARGET_C99_FUNCTIONS): Don't define.
547         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
548         GLIBC_DYNAMIC_LINKER.
549         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
550         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
551         GLIBC_DYNAMIC_LINKER64): Define.
552         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
553         LINUX_DYNAMIC_LINKER64.
554         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
555         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
556         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
557         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
558         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
559         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
560         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
561         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
562         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
563         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
564         and LINUX_DYNAMIC_LINKER32.
565         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
566         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
567         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
568         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
569         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
570         TARGET_GLIBC.
571         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
572         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
573         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
574         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
575         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
576         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
577         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
578         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
579         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
580         LINUX_DYNAMIC_LINKER): Define.
581         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
582         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
583         GLIBC_DYNAMIC_LINKER64): Define.
584         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
585         LINUX_DYNAMIC_LINKER64.
586         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
587         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
588         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
589         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
590         LINUX_DYNAMIC_LINKER): Define.
591         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
592         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
593         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
594         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
595         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
596         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
597         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
598         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
599         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
600         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
601         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
602         * doc/invoke.texi (-muclibc): Remove caveat about supported
603         targets.
604
605 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
606
607         * doc/cpp.texi (__TIMESTAMP__): Document.
608
609 2006-02-17  Roger Sayle  <roger@eyesopen.com>
610
611         PR middle-end/25600
612         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
613         C is one less than the width of X (and related transformations).
614         * simplify_rtx.c (simplify_unary_operation_1): Transform 
615         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
616         depending on STORE_FLAG_VALUE, were C is one less then the
617         width of X.
618
619 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
620
621         Fix PR tree-optimization/26341
622         * tree-ssa-operands.c (add_virtual_operand): Remove assert 
623         about NAME_MEMORY_TAG's.
624
625 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
626
627         PR target/26255
628         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
629         with hardware float support, and software float support.  Add fcpy
630         alternative to hardware patterns.  Add alternatives to copy between
631         general and floating-point registers to the 32-bit pattern.
632         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
633         secondary reload to load a QI or HI mode constant into a floating
634         point register. 
635         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
636         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
637
638 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
639
640         PR target/26272
641         * config/rs6000/darwin.md (load_macho_picbase_si): Add
642         pc to the pattern.
643         (load_macho_picbase_di): Likewise.
644
645 2006-02-16  Jeff Law  <law@redhat.com>
646
647         * tree-vrp.c (set_value_range_to_nonnegative): New function.
648         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
649         (ssa_name_nonzero_p): Likewise.
650         (get_value_range): Return NULL if VRP is not running.
651         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
652         VRP routines do not discover a range.
653         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
654         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
655         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
656         (tree_expr_nonnegative_p): Similarly.
657         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
658         (restore_nonzero_vars_to_original_value): Remove.
659         (unsafe_associative_fp_binop): Remove.
660         (tree_ssa_dominator_optimize): Remove initialization and
661         finalization of nonzero_vars and nonzero_vars_stack.
662         (dom_opt_initialize_block): No longer push marker on
663         nonzero_vars_stack.
664         (dom_opt_finalize_block): No longer call
665         restore_nonzero_vars_to_original_value.
666         (record_equivalences_from_phis): No longer look for
667         nonzero PHI arguments.
668         (cprop_into_successor_phis): No longer propagate nonzero
669         property into PHI arguments.  Lose unused argument.  Caller
670         updated.
671         (record_equivalences_from_stmt): No longer record nonzero
672         values for SSA_NAMEs.
673         (lookup_avail_expr): No longer use nonzero_vars.
674
675         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
676         for sizetype when sizetype is unsigned.
677
678 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
679
680         PR rtl-optimization/25603
681         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
682         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
683         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p 
684         with new meaning of SETS.
685
686 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
687
688         PR target/20353
689         PR target/24578
690         PR target/24837
691         * config/linux.opt: New file.
692         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
693         LINUX_DYNAMIC_LINKER): Define.
694         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
695         * config.gcc (*-*-linux*): Define extra_options.
696         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
697         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
698         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
699         GLIBC_DYNAMIC_LINKER.
700         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
701         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
702         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
703         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
704         * doc/invoke.texi (GNU/Linux Options): New section.
705
706 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
707
708         * config/sparc/sparc.md (setjmp): Rewrite.
709         (setjmp_32): Delete.
710         (setjmp_64): Likewise.
711
712 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
713
714         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
715          previous change.
716
717 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
718
719         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
720         read-write uses.
721
722 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
723
724         PR rtl-optimization/26296
725         * Makefile.in (loop-invariant.c): Add except.h dependency.
726         * loop-invariant.c: Include except.h.
727         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
728
729 2005-02-16  Paul Brook  <paul@codesourcery.com>
730
731         * reload1.c (emit_reload_insns): Invalidate dead input registers used
732         for reloads.
733
734 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
735
736         PR rtl-optimization/25636
737         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
738         when deciding whether an insn is an initializing insn.
739
740 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
741
742         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
743         (tree_code_size): Ditto.
744         * tree.h (struct tree_memory_tag): Remove parent_var.
745         (struct tree_struct_field_tag): New.
746         (SFT_OFFSET): New.
747         (SFT_SIZE): New.
748         (union tree_node): Add sft member.
749         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
750         specially here.
751         (create_sft): Add size and offset argument, set SFT_OFFSET and
752         SFT_SIZE.
753         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
754         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
755         * tree-flow-inline.h (get_subvar_at): Update for
756         SFT_OFFSET/SFT_SIZE.
757         (var_can_have_subvars): Ditto.
758         (overlap_subvar): Ditto.
759         * print-tree.c (print_node): Print out interesting things for
760         SFT's.
761         * tree-flow.h (struct subvar): Remove offset and size members.
762         * tree-ssa-operands.c (get_expr_operands): Update for
763         get_indirect_ref_operands changes.
764         (get_indirect_ref_operands): Call add_virtual_operand instead of
765         add_stmt_operand.  Only recurse on base var if requested.
766         (access_can_touch_variable): New function.
767         (add_stmt_operand): Split virtual operand handling into ...
768         (add_virtual_operand): Here.  Add offset, size, and for_clobber
769         arguments.  Prune alias sets.
770         (add_call_clobber_ops): Call add_virtual_operand.
771         
772 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
773
774         PR middle-end/26300
775         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
776
777         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
778         than TREE_CODE as index into omp_clause_num_ops array.
779
780 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
781
782         PR rtl-optimization/26184
783         * modulo-sched.c (generate_reg_moves): Free bitmap vector
784         uses_of_defs.
785         * modulo-sched.c (sms_schedule): Free g_arr pointer.
786         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
787         must_precede, must_follow and tobe_scheduled.
788
789         PR other/26147
790         * opts.c (common_handle_option): Free new_option pointer.
791         * df-core.c (df_analyze): Free postorder pointer.
792
793 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
794
795         * Makefile.in: Fix the examples about the use of stamps
796
797 2006-02-15  Michael Matz  <matz@suse.de>
798
799         PR middle-end/22275
800
801         * stor-layout.c (layout_decl): Zero-width bitfields aren't
802         influenced by maximum_field_alignment or DECL_PACKED.
803         (update_alignment_for_field): Ditto.
804         (place_field): Ditto.
805         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
806         this behaviour.
807
808 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
809
810         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
811         (debug_flow_info): Pass it.
812         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
813         * bb-reorder.c (reorder_basic_blocks): Likewise.
814         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
815         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
816         * flow.c (life_analysis, recompute_reg_usage): Likewise.
817         * gcse.c (gcse_main, bypass_jumps): Likewise.
818         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
819         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
820         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
821         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
822         * rtl.h (dump_flow_info): Adjust prototype.
823         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
824         * var-tracking.c (variable_tracking_main): Likewise.
825         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
826         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
827         options.
828
829 2006-02-15  Marcin Dalecki <martin@dalecki.de>
830
831         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
832         construction.
833
834 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
835
836         PR tree-optimization/26209
837         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
838         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
839         eh edges.
840         * tree-cfg.c (replace_uses_by): Do not alter cfg.
841
842 2006-02-14  Roger Sayle  <roger@eyesopen.com>
843
844         PR middle-end/23670
845         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
846         (X,Y) and the corresponding symmetry related transformations.
847         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
848         (X,Y) and its symmetry related transformations.
849
850 2006-02-14  Roger Sayle  <roger@eyesopen.com>
851
852         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
853         and GEU.
854
855 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
856
857         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
858
859 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
860
861         PR bootstrap/26053
862         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
863         support COMDAT group.
864         * configure: Regenerate.
865
866 2006-02-14  Roger Sayle  <roger@eyesopen.com>
867
868         PR middle-end/26279
869         PR middle-end/26280
870         PR middle-end/26283
871         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
872
873 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
874
875         Fix PR tree-optimization/26260
876
877         * doc/invoke.texi (max-fields-for-field-sensitive): Document
878         param.
879         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
880         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
881         * tree-ssa-structalias.c (create_variable_info_for): Use
882         MAX_FIELDS_FOR_FIELD_SENSITIVE.
883         
884 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
885
886         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
887         Document.
888         * tree-ssa-loop-niter.c (number_of_iterations_ne,
889         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
890         of the ending condition.
891         * tree-ssa-loop-manip.c: Include params.h.
892         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
893         tree_unroll_loop): New functions.
894         * tree-pass.h (pass_loop_prefetch): Declare.
895         * loop.c (rest_of_handle_loop_optimize): Test for
896         -fprefetch-loop-arrays-rtl.
897         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
898         * timevar.def (TV_TREE_PREFETCH): New timevar.
899         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
900         pass_loop_prefetch): New.
901         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
902         (cleanup_tree_cfg_loop): Call scev_reset.
903         * common.opt (fprefetch-loop-arrays-rtl): Add.
904         * tree-ssa-loop-prefetch.c: New file.
905         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
906         (new_temp_expr_table): Initialize expr_vars.
907         (free_temp_expr_table): Cleanup expr_vars.
908         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
909         expressions from being merged into one.
910         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
911         (struct tree_niter_desc): Add control, bound and cmp fields.
912         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
913         Declare.
914         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
915         (tree-cfgcleanup.o): Add SCEV_H dependency.
916         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
917         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
918
919 2006-02-14  Richard Guenther  <rguenther@suse.de>
920
921         PR tree-optimization/26258
922         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
923         in PHI argument processing.
924
925 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
926
927         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
928         new expression in the requested machine mode.
929
930 2006-02-13  Roger Sayle  <roger@eyesopen.com>
931
932         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
933         directly, instead let do_compare_rtx_and_jump handle this for us.
934         * expr.c (expand_expr_real_1): Likewise.
935         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
936         before do_jump_by_parts_greater.
937         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
938         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
939
940 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
941
942         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
943
944 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
945
946         PR rtl-optimization/26235
947         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
948         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
949         format.
950
951 2006-02-13  Jeff Law  <law@redhat.com>
952
953         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
954         TRUTH_XOR_EPR.
955
956 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
957
958         PR middle-end/26092
959         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
960         twice if decl is a builtin.  When trying again, call get_callee_fndecl
961         first to verify it is still a builtin.
962
963 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
964
965         * dwarf2out.c (base_type_die): Don't add AT_name here.
966         (subrange_type_die): Don't add AT_name here.
967         (modified_type_die): Rearrange code flow.  Do add AT_name here.
968
969 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
970
971         PR rtl-optimization/26247
972         PR rtl-optimization/26248
973         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
974
975 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
976
977         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
978         * config/fixtfdi.c: Likewise.
979         * config/fixunstfdi.c: Likewise.
980         * config/floatditf.c: Likewise.
981
982 2006-02-13  Roger Sayle  <roger@eyesopen.com>
983
984         PR middle-end/24427
985         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
986         into (X,C2) if C1 is a subset of the bits of C2.  Transform
987         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
988         (X&(C1&~C2))|C2.
989         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
990
991 2006-02-13  Josh Conner  <jconner@apple.com>
992
993         PR target/25376
994         * varasm.c (function_section): Check for section name before
995         calling select_section on targets that define
996         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
997         unlikely_text_section instead of hot_function_section if
998         first_function_block_is_cold.
999
1000 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1001
1002         PR middle-end/25335
1003         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1004
1005 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1006
1007         PR rtl-optimization/26222
1008         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1009         after tree->rtl expansion.
1010         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1011         before passing it to emit_move_insn.
1012
1013 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1014
1015         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1016         default. 
1017         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1018         Clarify documentation.
1019         * c-common.h (warn_write_strings): Remove.
1020         * c-common.c (warn_write_strings): Likewise.
1021         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1022         default for C++.
1023
1024 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1025
1026         PR middle-end/25724
1027         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1028         (do_jump_parts_zero_rtx): New function renamed from
1029         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1030         (do_jump_parts_equality_rtx): New function split out from
1031         do_jump_parts_equality.  Old implementation renamed as above.
1032         Call do_jump_parts_zero_rtx if either operand is zero.
1033         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1034         do all of the heavy lifting.
1035         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1036         calling either do_jump_by_parts_greater_rtx or
1037         do_jump_by_parts_equality_rtx.
1038         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1039         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1040         moved to do_compare_rtx_and_jump, call it directly.
1041         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1042         mode argument.  Call do_compare_rtx_and_jump.
1043         (emit_case_nodes): Update calls to do_jump_if_equal.
1044
1045 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1046
1047         PR rtl-optimization/26225
1048         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1049
1050 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1051
1052         PR rtl-optimization/26232
1053         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1054
1055 2006-02-11  Jason Merrill  <jason@redhat.com>
1056
1057         PR tree-opt/24365
1058         * tree-inline.c (declare_return_variable): Just don't use the
1059         modify target if it's a gimple complex reg and the return slot
1060         isn't.
1061
1062 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1063
1064         * doc/contrib.texi: Update my entry.
1065
1066 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1067
1068         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1069
1070 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1071
1072         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1073         expensive.
1074
1075 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1076
1077         * doc/invoke.texi (-floop-optimize2): Removed.
1078         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1079         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1080         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1081         * common.opt (floop-optimize2): Removed.
1082         (fmove-loop-invariants): Enabled by default.
1083
1084 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1085
1086         * tree-if-conv.c (combine_blocks): Free the result of
1087         get_loop_exit_edges.
1088
1089 2006-02-10  Jeff Law  <law@redhat.com>
1090
1091         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1092
1093         PR tree-optimization/26213
1094         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1095         loop trying to follow SSA_NAME_VALUE chains.
1096
1097 2006-02-10  Richard Guenther  <rguenther@suse.de>
1098
1099         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1100         deal with structures that end in implicitly variable sized arrays.
1101
1102 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1103
1104         PR rtl-optimization/24762
1105         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1106         eh edges.
1107
1108 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1109
1110         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1111         (struct ivopts_data): Add regs_used field.
1112         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1113         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1114         instead of loop_data->regs_used;
1115         (free_loop_data): Do not free aux fields for loops.
1116         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1117         and tree_ssa_iv_optimize_finalize.
1118
1119 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1120
1121         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1122
1123 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1124
1125         PR target/26141
1126         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1127         computing the effective result type.
1128
1129 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1130
1131         PR inline-asm/16194
1132         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1133         (tree_overlaps_hard_reg_set): Declare.
1134         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1135         type and signature to match function type expected by walk_tree.
1136         (tree_overlaps_hard_reg_set): New function.
1137         (decl_conflicts_with_clobbers_p): Rename to:
1138         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1139         Use tree_overlaps_hard_reg_set.  Changed caller.
1140         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1141         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1142         * cris.c (cris_md_asm_clobbers): Likewise.
1143
1144 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1145
1146         * reload1.c (emit_input_reload_insns): Delete code that tries to
1147         inherit using find_equiv_reg.
1148
1149 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1150
1151         * c-common.h (flag_const_strings): Don't declare.
1152         * c-common.c (flag_const_strings): Remove.
1153         * c.opt (fconst_strings): Remove.
1154         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
1155         <OPT_Wwrite_strings>: Don't set flag_const_strings.
1156         (c_common_init_options): Don't set flag_const_strings.
1157         * doc/invoke.texi (-fno-const-strings): Remove documentation.
1158
1159 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
1160
1161         * arm.md (tlobits_cbranch): New pattern.
1162         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
1163         testing a single bit.
1164
1165 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1166
1167         PR tree-opt/26179
1168         * tree-ssa-pre.c (create_component_ref_by_pieces):
1169         Handle RETURN_DECL like VAR_DECL.
1170
1171 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1172
1173         PR middle-end/26134
1174         * fold-const.c (fold_indirect_ref_1): Fold 
1175         "*(foo *)&complexfoo" to "__real__ complexfoo"
1176         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
1177
1178 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1179
1180         * tree-flow-inline.h (var_can_have_subvars): 
1181         Volatile variables should not have subvariables.
1182
1183 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
1184
1185         PR 26180
1186         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
1187         multiplying unsigned values.
1188         Tidy comments.
1189
1190 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
1191
1192         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
1193
1194 2006-02-08  Jason Merrill  <jason@redhat.com>
1195
1196         PR c++/25979
1197         * tree.def: Elaborate on difference from MODIFY_EXPR.
1198         * doc/c-tree.texi (INIT_EXPR): Likewise.
1199         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
1200         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
1201         (gimplify_target_expr): Likewise.
1202         (gimplify_cond_expr): Remove target handling.
1203         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
1204         (gimplify_expr): Clobber it here.
1205         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
1206         Do return slot optimization if we have an INIT_EXPR.
1207
1208         PR tree-opt/24365
1209         * tree-inline.c (declare_return_variable): Also clear 
1210         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
1211
1212         PR c++/16405
1213         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
1214
1215         PR middle-end/22439
1216         * gimplify.c (gimplify_one_sizepos): Fix typo.
1217
1218 2006-02-08  Jeff Law  <law@redhat.com>
1219
1220         PR tree-optimization/21417
1221         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
1222         across a backedge if the control statement at the end of the
1223         block is data dependent on other statements in the same block.
1224         (record_temporary_equivalences_from_stmts): Remove over-conservative
1225         test for threading across backedges.
1226
1227         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
1228         control statement, handle all three special cases in the same
1229         manner as they all have the same desired solution.  No longer
1230         special case edge flag updating when the post dominator is
1231         the exit block.
1232
1233 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1234
1235         * tree.def (CHAR_TYPE): Remove.
1236         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
1237         * dwarf2out.c (base_type_die, is_base_type): Likewise.
1238         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
1239         (gen_string_type_die): Delete unreachable function.
1240
1241         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
1242         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
1243         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
1244         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
1245         * builtins.c (type_to_class): Likewise.
1246         * fold-const.c (fold_convert, build_range_check,
1247         merge_ranges): Likewise.
1248         * expr.c (count_type_elements): Likewise.
1249         * c-pretty-print.c (pp_c_type_specifier): Likewise.
1250         * stor-layout.c (layout_type): Likewise.
1251         * ipa-type-escape.c (type_to_consider): Likewise.
1252         * gimplify.c (omp_firstprivatize_type_sizes,
1253         gimplify_type_sizes): Likewise.
1254         * explow.c (promote_mode): Likewise.
1255         * tree-sra.c (is_sra_scalar_type): Likewise.
1256         * varasm.c (output_constant): Likewise.
1257         * tree-inline.c (remap_type_1): Likewise.
1258         * convert.c (convert_to_pointer, convert_to_real,
1259         convert_to_integer, convert_to_complex): Likewise.
1260
1261 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
1262
1263         * df-scan.c (df_def_record_1): A set destination may
1264         be a parallel regardless of mode.
1265
1266 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1267
1268         PR target/22209
1269         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
1270         * config/mips/_tilib.c: Remove.
1271         * config/fixtfdi.c: New libgcc source file.
1272         * config/fixunstfdi.c: New source file.
1273         * config/floatditf.c: New source file.
1274         * config/floatunditf.c: New souce file.
1275         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
1276         files above instead of config/mips/_tilib.c.
1277         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
1278
1279 2006-02-08  Jeff Law  <law@redhat.com>
1280
1281         PR tree-optimization/26169
1282         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
1283         threading jumps.
1284
1285 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
1286
1287         * df.h (DF_REG_SIZE): Return the length of the initialized
1288         part of the array.
1289
1290 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
1291
1292         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
1293         __muldf3): Return a correctly signed zero.
1294
1295 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
1296
1297         * passes.c (register_one_dump_file): Accept the current properties
1298         instead of pass number.  Adjust call to dump_register.  Remove
1299         duplicated code.
1300         (register_dump_files): Now a wrapper around...
1301         (register_dump_files_1): ... this one.  Do not modify the pass
1302         structure.
1303         (next_pass_1): Cosmetic fix.
1304         (execute_todo): Keep second parameter only.  Use curr_properties
1305         instead of fetching it from the pass structure.  Check and set
1306         last_verified.
1307         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
1308         instead of fetching it from the pass structure.  Fix calls to
1309         execute_todo.  Update curr_properties and initialize .vcg RTL dump
1310         after running the pass.  Reset last_verified.
1311         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
1312         at the beginning.
1313         (FIRST_AUTO_NUMBERED_DUMP): New.
1314         (dump_register): Remove "num" parameter, assign it within the
1315         function.
1316         (get_dump_file_name): Modify template for dumps.
1317         * tree-dump.h (dump_register): Adjust prototype.
1318         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
1319         (PROP_trees): Add PROP_gimple_lomp.
1320         (TODO_set_props): New.
1321         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
1322         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
1323         * cfgexpand.c (pass_expand): Destroy PROP_trees.
1324
1325 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
1326
1327         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
1328         (sparc64-*-linux*): Likewise.
1329         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
1330         * config/sparc/t-linux: New file.
1331         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
1332         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
1333         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
1334         -m32 -mlong-double-128.
1335
1336         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
1337         * config/alpha/t-linux: New file.
1338         * config/alpha/libgcc-alpha-ldbl.ver: New file.
1339
1340         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
1341         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
1342         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
1343         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
1344         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
1345         (CPP_ARCH32_SPEC): Remove.
1346
1347 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
1348
1349         PR tree-optimization/26145
1350         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
1351         bbs pointer.
1352
1353 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1354
1355         PR target/26109
1356         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
1357         >= 240000 when generating code for SOM runtime.
1358         (output_indirect_call): Don't use "b,l" instruction for indirect calls
1359         to $$dyncall when generating code for SOM runtime..
1360
1361 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1362
1363         PR c++/18150
1364         * doc/invoke.texi (-Wsequence-point): Update documentation
1365         that -Wsequence-point is implemented for C++ as well.
1366
1367 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1368
1369         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
1370         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
1371         (LIB_SPEC): Likewise.
1372         * doc/invoke.texi (SPARC options): Document -pthread.
1373
1374 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
1375
1376         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
1377         PIC addresses.
1378
1379 2006-02-07  Roger Sayle  <roger@eyesopen.com>
1380
1381         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
1382         Correct comment describing BOOLEAN_TYPE.
1383
1384 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1385
1386         * c.opt: C++ frontend supports -Wdiv-by-zero.
1387         * c-opts.c (c_common_handle_option): Remove dead case.
1388
1389 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1390
1391         * configure.ac (TLS assembler check): Do not enable TLS by
1392         default on SPARC/Solaris before version 10.
1393         * configure: Regenerate.
1394
1395 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
1396
1397         * doc/invoke.texi (xl-compat): Document conversion and support
1398         routine names.
1399
1400 2006-02-07  Jeff Law  <law@redhat.com>
1401
1402         * tree-vrp.c (find_conditional_asserts): Update comments.
1403         (simplify_stmt_for_jump_threading): New.
1404         (identify_jump_threads, finalize_jump_threads): New.
1405         (vrp_finalize): Call identify_jump_threads.
1406         (execute_vrp): Call finalize_jump_threads.
1407         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
1408         (vrp_element, vrp_data, vrp_element_p): Remove.
1409         (vrp_hash_elt, vrp_variables_stack): Remove.
1410         (vrp_hash, vrp_eq, record_range): Remove.
1411         (simplify_cond_and_lookup_avail_expr): Remove.
1412         (extract_range_from_cond): Remove.
1413         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
1414         (simplify_stmt_for_jump_threading): New.
1415         (dom_thread_across_edge): New wrapper.
1416         (tree_ssa_dominator_optimize): No longer initialize or
1417         finalize any of the VRP datastructures.  Remove iteration
1418         step and simplify as a result of removal of iteration step.
1419         (pass_dominator): Perform a cfg cleanup after DOM.
1420         (dom_opt_finalize_block): Use the new common routines
1421         for threading jumps.  Simplify stack management slightly.
1422         No longer need to unwind VRP state.
1423         (record_equivalences_from_incoming_edge): No longer record
1424         VRP information.
1425         (eliminate_redundant_computations): No longer call
1426         simplify_cond_and_lookup_avail_expr.
1427         * tree-flow.h (potentially_threadable_block): Prototype.
1428         (thread_across_edge): Likewise.
1429         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
1430         (tree-ssa-threadedge.o): Add dependencies.
1431         * tree-ssa-threadedge.c: New file.
1432         * passes.c (init_optimization_passes): Merge PHIs before
1433         calling VRP.  Run VRP again late in the SSA optimization pipeline.
1434
1435 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1436
1437         * df-core.c (df_set_blocks): Do not dereference function pointers.
1438         (df_finish1): Likewise.
1439         (df_hybrid_search_forward): Likewise.
1440         (df_hybrid_search_backward): Likewise.
1441         (df_iterative_dataflow): Likewise.
1442         (df_analyze_problem): Likewise.
1443         (df_compact_blocks): Likewise.
1444         (df_dump): Likewise.
1445         * df-scan.c (df_rescan_blocks): Likewise.
1446         (df_record_entry_block_defs): Likewise.
1447
1448         * genconditions.c (write_conditions): Guard the definition of
1449         'insn_conditions' with the check on GCC version.
1450         (write_writer): Guard the traversal 'insn_conditions' with
1451         the check on GCC version.
1452
1453 2006-02-07  Richard Guenther  <rguenther@suse.de>
1454
1455         PR c++/26140
1456         Revert
1457         2006-01-30  Richard Guenther  <rguenther@suse.de>
1458         PR c++/23372
1459         * gimplify.c (gimplify_target_expr): Handle easy cases
1460         without creating a temporary.
1461
1462 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
1463
1464         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
1465         use of float in probability computations.  Use edge probabilities
1466         in place of statically computed probabilities.
1467         (min_spec_prob): New static variable.
1468         (schedule_insns): Initialize it.
1469         (GET_SRC_PROB): Removed.
1470         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
1471
1472 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
1473
1474         PR debug/24444
1475         * config/ia64/unwind-ia64.c: Revert last change.
1476         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
1477         (INCOMING_FRAME_SP_OFFSET): Define.
1478
1479 2006-02-06  Roger Sayle  <roger@eyesopen.com>
1480
1481         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
1482
1483 2006-02-07  Ben Elliston  <bje@au.ibm.com>
1484
1485         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
1486         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
1487         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
1488         (ix86_return_in_memory): Handle TDmode.
1489         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
1490         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
1491
1492 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
1493
1494         * reorg.c (dbr_schedule): Use dump_file instead of file.
1495
1496 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
1497
1498         PR target/25917
1499         * config/ia64/predicates.md (extr_len_operand): New predicate.
1500         * config/ia64/ia64.md (extv): Tighten constraints.
1501         (extzv): Ditto.
1502         (*tbit_and_2): Ditto.
1503         (*tbit_and_3): Ditto.
1504         (*tbit_or_2): Ditto.
1505         (*tbit_or_3): Ditto.
1506         (*bit_zero): Ditto.
1507         (*bit_one): Ditto.
1508
1509 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
1510
1511         PR target/23359
1512         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
1513
1514 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1515
1516         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
1517         loop_optimizer_init and loop_optimizer_finalize
1518         * tree-ssa-sink.c (execute_sink_code): Ditto.
1519         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1520         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
1521         tree_ssa_loop_done): Ditto.
1522         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
1523         * sched-ebb.c: Include output.h.
1524         (schedule_ebbs): Do not use dump argument.
1525         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
1526         * loop.c (loop_dump_stream): Removed.
1527         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
1528         argument.
1529         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
1530         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
1531         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
1532         loop_iterations, strength_reduce, record_biv, record_giv,
1533         final_giv_value, check_final_value, check_ext_dependent_givs,
1534         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
1535         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
1536         dump_file instead of loop_dump_stream.
1537         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
1538         argument dump_file.
1539         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
1540         dump argument.
1541         * flow.c (life_analysis, rest_of_handle_life): Ditto.
1542         * haifa-sched.c: Include output.h
1543         (schedule_insns, sched_init): Do not use dump argument.
1544         * mode-switching.c (optimize_mode_switching): Ditto.
1545         * modulo-sched.c (stats_file): Removed.
1546         (print_node_sched_params): Do not call argument dump_file.
1547         (sms_schedule_by_order, loop_canon_p, sms_schedule,
1548         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
1549         of stats_file.
1550         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
1551         use dump argument.
1552         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
1553         rtl_loop_init, rtl_loop_done): Ditto.
1554         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
1555         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
1556         Ditto.
1557         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
1558         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
1559         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
1560         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
1561         * emit-rtl.c (renumber_insns): Ditto.
1562         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
1563         expand_gimple_basic_block, tree_expand_cfg): Ditto.
1564         * regclass.c (regclass): Ditto.
1565         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
1566         remove_ssa_form, rewrite_out_of_ssa): Ditto.
1567         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
1568         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
1569         Ditto.
1570         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
1571         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
1572         to regclass.
1573         * gcse.c (gcse_file, debug_stderr): Removed.
1574         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
1575         rest_of_handle_gcse): Do not use dump argument.
1576         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
1577         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
1578         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
1579         compute_code_hoist_vbeinout, compute_code_hoist_data,
1580         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
1581         compute_store_table, build_store_vectors, insert_insn_start_bb,
1582         insert_store, remove_reachable_equiv_notes, replace_store_insn,
1583         store_motion): Use dump_file instead of gcse_file.
1584         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
1585         * profile.c (profile_dump_file): Removed.
1586         (branch_prob): Use dump_file instead of profile_dump_file.
1587         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
1588         dump_file.
1589         * tree-ssa-copy.c (dump_copy_of): Ditto.
1590         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
1591         dump file to life_analysis.
1592         * bt-load.c (branch_target_load_optimize): Ditto.
1593         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
1594         renumber_insns.
1595         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
1596         regclass, dbr_schedule): Declaration changed.
1597         * sched-int.h (sched_init): Declaration changed.
1598         * tree-profile.c (tree_profile_dump_file): Removed.
1599         (tree_profile_hooks): Removed profile_dump_file hook.
1600         * rtl-profile (rtl_profile_dump_file): Removed.
1601         (rtl_profile_hooks): emoved profile_dump_file hook.
1602         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
1603         changed.
1604         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
1605         * tree-cfg.c (build_tree_cfg): Ditto.
1606         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
1607         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
1608         Declaration changed.
1609         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
1610         life_analysis and schedule_insns.
1611         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
1612         life_analysis.
1613         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
1614         dbr_schedule.
1615         * config/mips/mips.c (mips_reorg): Ditto.
1616         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
1617         schedule_ebbs.
1618
1619 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
1620
1621         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1622         (s390_mangle_fundamental_type): New.
1623         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1624         Define.
1625
1626         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1627         (alpha_mangle_fundamental_type): New.
1628         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1629         Define.
1630
1631         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1632         Define.
1633         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1634         Define.
1635         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1636         (sparc_mangle_fundamental_type): New.
1637
1638 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
1639
1640         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
1641         (s390x-*-linux*): Likewise.
1642         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
1643         * config/s390/t-linux: New file.
1644
1645 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1646
1647         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
1648         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
1649
1650 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
1651
1652         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
1653         (ANTIC_SAFE_LOADS): New macro.
1654         (find_or_generate_expression): Add prototype.
1655         (set_contains_value): Allow null set for sake of not always having
1656         to allocate ANTIC_SAFE_LOADS.
1657         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
1658         Allow COMPONENT_REF too.
1659         (valid_in_set): Allow COMPONENT_REF.
1660         Check ANTIC_SAFE_LOADS too.
1661         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
1662         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
1663         rename.
1664         (can_PRE_operation): Add COMPONENT_REF.
1665         (create_component_ref_by_pieces): New function.
1666         (create_expression_by_pieces): Use create_component_ref_by_pieces.
1667         (insert_aux): Move AGGREGATE_TYPE_P check here.
1668         (compute_avail): Set bb local stmt uids.
1669         (pass_pre): Use TODO_update_ssa_only_virtuals.
1670         
1671 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1672
1673         * configure.ac: Unconditionally disable decimal float by default.
1674         * configure: Regenerate.
1675
1676 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1677
1678         * read-rtl.c (read_name): Terminate reading on EOF.
1679
1680 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1681
1682         * dfp.c (decimal_real_arithmetic): Change second argument type
1683         from int to enum tree_code. Do not always return true, but now
1684         return result of any call to decimal_do helper functions.
1685         * dfp.h (decimal_real_arithmetic): Update prototype.
1686
1687 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
1688
1689         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
1690
1691 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
1692
1693         PR tree-opt/25251
1694         * tree-cfg.c (cleanup_dead_labels): Also don't remove
1695         forced labels.
1696
1697 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1698
1699         * tree-vrp.c (cfg_loops): Removed.
1700         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
1701         Use current_loops instead of cfg_loops.  Pass flags to
1702         loop_optimizer_init.
1703         * cfgloopmanip.c (fix_loop_structure): Update only available
1704         information.
1705         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
1706         loop_optimizer_init.
1707         * modulo-sched.c (build_loops_structure): Removed.
1708         (sms_schedule): Use loop_optimizer_init.
1709         * loop-init.c (loop_optimizer_init): Use flags to determine
1710         which properties of loops to prepare.
1711         (rtl_loop_init): Pass flags to loop_optimizer_init.
1712         * tree-ssa-sink.c (execute_sink_code): Ditto.
1713         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
1714         * tree-ssa-pre.c (init_pre): Ditto.
1715         * cfgloop.h (LOOPS_NORMAL): New.
1716         (loop_optimizer_init): Declaration changed.
1717
1718 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1719
1720         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
1721         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
1722         pa/t-pa.
1723         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
1724         pa/t-pa.
1725         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
1726         pa/x-ada.
1727         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
1728         * pa/t-pa64: Delete quadlib.c rule.
1729         * pa/x-ada: Revert last change.
1730         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
1731
1732 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1733
1734         PR rtl-optimization/26087
1735         * rtlanal.c (canonicalize_condition): Do not cross basic block
1736         boundaries.
1737
1738 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
1739
1740         PR debug/24444
1741         * config/ia64/ia64.c: Include debug.h.
1742         (MAX_ARTIFICIAL_LABEL_BYTES): New.
1743         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
1744         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
1745         (process_epilogue, process_set, process_for_unwind_directive):
1746         Output unwind info only if requested.  Add CFA info if requested.
1747         Add new arguments as needed.  Adjust callers.
1748         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
1749         incorrect default.
1750         (DWARF2_FRAME_INFO): Define to zero.
1751         * config/ia64/unwind-ia64.c: Remove code that compensated for
1752         the CFA offset error fixed above.
1753         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
1754         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
1755         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
1756         -funwind-tables and -fexceptions to enable frame info.
1757         (dwarf2out_frame_init): Define initial CFA even if
1758         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
1759         DWARF2_UNWIND_INFO is nonzero, not just defined.
1760         (dwarf2out_frame_finish): Output non-EH call frame info only
1761         if DWARF2_FRAME_INFO is nonzero.
1762         (convert_cfa_to_loc_list,
1763         compute_frame_pointer_to_cfa_displacement): Define even if
1764         unwind info is not supported.
1765         (gen_subprogram_die): Use the above unconditionally.  Remove
1766         legacy alternate code.
1767         * toplev.c (compile_file): Compile in call to
1768         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
1769         (lang_dependent_init): Ditto for dwarf2out_frame_init.
1770
1771 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
1772             Jakub Jelinek  <jakub@redhat.com>
1773
1774         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
1775         IBM extended float format long double as "g" on powerpc*-linux.
1776
1777 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1778
1779         PR target/25926
1780         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
1781         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
1782
1783 2006-02-03  Jason Merrill  <jason@redhat.com>
1784
1785         PR c++/25979
1786         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
1787
1788         PR middle-end/25977
1789         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
1790         on the return slot if it's an NRV.
1791
1792 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
1793
1794         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
1795         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
1796         rewrite_use): Do not handle USE_OUTER.
1797         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
1798         add_iv_outer_candidates, may_replace_final_value,
1799         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
1800         (find_interesting_uses_op): Functionality of
1801         find_interesting_uses_outer_or_nonlin moved here.
1802         (find_interesting_uses_outside): Use find_interesting_uses_op.
1803
1804 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
1805
1806         PR target/25960
1807         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
1808
1809 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
1810             Ulrich Weigand  <uweigand@de.ibm.com>
1811
1812         PR target/25864
1813         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
1814         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
1815         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
1816         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
1817         and dxr fields.
1818         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
1819         (s390_rtx_costs): Use the new fields to calculate rtx costs.
1820         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
1821         Define secondary reloads for TFmode moves.
1822         (constant_modes): Add TFmode.
1823         (NR_C_MODES): Set to 8.
1824         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
1825         builtin define.
1826         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
1827         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
1828         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
1829         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
1830         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
1831         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
1832         (FPR mode macro): Add TFmode.
1833         (DSF mode macro): New.
1834         (<de>, <dee> mode attributes): Removed.
1835         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
1836         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
1837         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
1838         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
1839         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
1840         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
1841         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1842         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
1843         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
1844         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1845         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
1846         "*negabs<mode>2", "sqrt<mode>2"):
1847         Changed <de> to <xde>. R constraint replaced by <Rf>.
1848         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
1849         <Rf>.
1850         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1851         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1852         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
1853         splitters.
1854         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
1855         "extenddftf2", "extendsftf2"): New expanders.
1856         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
1857         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1858         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1859         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1860         New options.
1861         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1862         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
1863         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1864         __floatditf): Add a GCC_4.1.0 symbol version tag.
1865         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1866         the new options.
1867
1868 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1869
1870         PR target/25377
1871         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1872         Use targetm.binds_local_p instead of TREE_PUBLIC.
1873
1874 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1875
1876         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1877         on INTEGER_TYPEs to indicate that it denotes a character type.
1878         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1879         signed_char_type_node, unsigned_char_type_node and char_type_node.
1880         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1881         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1882         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1883
1884 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1885             Daniel Berlin  <dberlin@dberlin.org>
1886
1887         * tree-tailcall.c (arg_needs_copy_p): New function.
1888         (eliminate_tail_call): Use arg_needs_copy_p.
1889         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1890         (add_virtual_phis): New function.
1891
1892 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1893
1894         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1895         #ignore instead of #scratch for %g7 .register directive.
1896
1897 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1898
1899         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1900         object files.
1901
1902 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1903
1904         * flow.c (calculate_global_regs_live): Assert that there aren't any
1905         EDGE_FAKE edges.
1906
1907 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1908
1909         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1910         what its name says.
1911         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1912         bsi_after_labels iterator.
1913         * tree-if-conv.c (find_phi_replacement_condition,
1914         replace_phi_with_cond_modify_expr): Likewise.
1915         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1916         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1917
1918 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1919
1920         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1921
1922 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1923
1924         PR 25990
1925         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1926         array after growing it.
1927
1928 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1929
1930         PR middle-end/24901
1931         * fold-const.c (fold_checksum_tree): Change type of buf.
1932
1933 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1934
1935         * reload.c (push_secondary_reload): Initialize t_icode.
1936
1937 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1938
1939         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1940         -msoft-float -mlong-double-128 only issue a warning, but don't
1941         swich to DFmode long double.
1942
1943 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1944
1945         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1946         has a constant equivalent, iterate over equivalents for arg0,
1947         calling simplify_relational_operation and if there's a result
1948         cheaper than X, apply fold_rtx and return the result.
1949
1950 2006-02-01  Jan Hubicka  <jh@suse.cz>
1951
1952         * opts.c (no_unit_at_a_time_default): New global variable.
1953         (decode_options): Use it.
1954         * opts.h (no_unit_at_a_time_default): Declare.
1955
1956 2006-02-01  Paul Brook  <paul@codesourcery.com>
1957
1958         * function.c (assign_parm_setup_reg): Use function argument promotion
1959         rules.
1960         * expr.c (expand_expr_real_1): Use function argument promotion rules
1961         for PARM_DECLs.
1962
1963 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1964
1965         * gcc.c (process_command): Change j to 'unsigned int'.
1966
1967 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1968
1969         PR middle-end/26001
1970         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
1971         Use the corrected index for the character
1972         out of the string constant.
1973
1974 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1975
1976         * mode-switching.c (optimize_mode_switching): Fix size
1977         allocated for bb_info[n_entities].
1978
1979 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1980
1981         * gcc.c (main): Correct type that is allocated for
1982         explicit_link_files.
1983
1984 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
1985
1986         * config/s390/s390.c (init_alignment_context): Set
1987         ALIAS_SET_MEMORY_BARRIER on the MEM.
1988         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
1989
1990 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
1991
1992         PR middle-end/25933
1993         * loop-unroll.c (unroll_loop_runtime_iterations): Free
1994         dom_bbs pointer.
1995         * tree-ssa-live.c (type_var_init): Allocate bitmap after
1996         call to tpa_init.
1997
1998 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
1999
2000         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2001         * regrename.c: Ditto.
2002         * tree-ssa-loop-im.c: Ditto.
2003         * tree-dump.c: Ditto.
2004         * tree-complex.c: Ditto.
2005         * genrecog.c: Ditto.
2006         * tree-ssa-threadupdate.c: Ditto.
2007         * tracer.c: Ditto.
2008         * java/class.c: Ditto.
2009         * java/jcf-parse.c: Ditto.
2010         * java/resource.c: Ditto.
2011         * java/except.c: Ditto.
2012         * java/jvspec.c: Ditto.
2013         * java/jcf-write.c: Ditto.
2014         * java/jcf-path.c: Ditto.
2015         * java/gjavah.c: Ditto.
2016         * java/zextract.c: Ditto.
2017         * java/jcf-io.c: Ditto.
2018         * java/jcf.h: Ditto.
2019         * java/buffer.c: Ditto.
2020         * java/lang.c: Ditto.
2021         * java/parse-scan.y: Ditto.
2022         * java/lex.c: Ditto.
2023         * java/lex.h: Ditto.
2024         * cfgloopmanip.c: Ditto.
2025         * postreload-gcse.c: Ditto.
2026         * tree-ssa-loop-manip.c: Ditto.
2027         * postreload.c: Ditto.
2028         * tree-ssa-loop-ch.c: Ditto.
2029         * loop.c: Ditto.
2030         * ipa-cp.c: Ditto.
2031         * cppspec.c: Ditto.
2032         * diagnostic.c: Ditto.
2033         * final.c: Ditto.
2034         * genoutput.c: Ditto.
2035         * gcc.c: Ditto.
2036         * cfghooks.c: Ditto.
2037         * cfgloopanal.c: Ditto.
2038         * objc/objc-act.c: Ditto.
2039         * gcov.c: Ditto.
2040         * genextract.c: Ditto.
2041         * genautomata.c: Ditto.
2042         * pretty-print.c: Ditto.
2043         * genemit.c: Ditto.
2044         * cgraphunit.c: Ditto.
2045         * flow.c: Ditto.
2046         * df-scan.c: Ditto.
2047         * haifa-sched.c: Ditto.
2048         * dominance.c: Ditto.
2049         * dbxout.c: Ditto.
2050         * tree-ssa-loop-ivopts.c: Ditto.
2051         * df-core.c: Ditto.
2052         * mode-switching.c: Ditto.
2053         * modulo-sched.c: Ditto.
2054         * graph.c: Ditto.
2055         * ipa-pure-const.c: Ditto.
2056         * cse.c: Ditto.
2057         * fix-header.c: Ditto.
2058         * web.c: Ditto.
2059         * tree-stdarg.c: Ditto.
2060         * ipa-utils.c: Ditto.
2061         * loop-init.c: Ditto.
2062         * ipa-inline.c: Ditto.
2063         * cfganal.c: Ditto.
2064         * global.c: Ditto.
2065         * alloc-pool.c: Ditto.
2066         * dwarf2out.c: Ditto.
2067         * opts.c: Ditto.
2068         * genattrtab.c: Ditto.
2069         * tree-ssa-loop-ivcanon.c: Ditto.
2070         * predict.c: Ditto.
2071         * timevar.c: Ditto.
2072         * lcm.c: Ditto.
2073         * fortran/gfortranspec.c: Ditto.
2074         * regmove.c: Ditto.
2075         * local-alloc.c: Ditto.
2076         * langhooks.c: Ditto.
2077         * function.c: Ditto.
2078         * tree-vectorizer.c: Ditto.
2079         * gcse.c: Ditto.
2080         * ipa-type-escape.c: Ditto.
2081         * alias.c: Ditto.
2082         * tree-if-conv.c: Ditto.
2083         * profile.c: Ditto.
2084         * ipa.c: Ditto.
2085         * tree-data-ref.c: Ditto.
2086         * loop-unroll.c: Ditto.
2087         * treelang/treetree.c: Ditto.
2088         * calls.c: Ditto.
2089         * bt-load.c: Ditto.
2090         * ggc-common.c: Ditto.
2091         * except.c: Ditto.
2092         * coverage.c: Ditto.
2093         * cselib.c: Ditto.
2094         * tree-cfgcleanup.c: Ditto.
2095         * tree-ssa-pre.c: Ditto.
2096         * cfgcleanup.c: Ditto.
2097         * loop-invariant.c: Ditto.
2098         * loop-iv.c: Ditto.
2099         * ipa-prop.c: Ditto.
2100         * print-tree.c: Ditto.
2101         * conflict.c: Ditto.
2102         * ggc-page.c: Ditto.
2103         * sched-deps.c: Ditto.
2104         * regclass.c: Ditto.
2105         * tree-object-size.c: Ditto.
2106         * combine.c: Ditto.
2107         * bb-reorder.c: Ditto.
2108         * resource.c: Ditto.
2109         * var-tracking.c: Ditto.
2110         * cfgloop.c: Ditto.
2111         * df-problems.c: Ditto.
2112         * reg-stack.c: Ditto.
2113         * tlink.c: Ditto.
2114         * gccspec.c: Ditto.
2115         * sched-rgn.c: Ditto.
2116         * tree-ssa-structalias.c: Ditto.
2117         * tree-ssa-reassoc.c: Ditto.
2118         * config/darwin-c.c: Ditto.
2119         * config/darwin.c: Ditto.
2120         * config/arm/arm.c: Ditto.
2121         * cfgrtl.c: Ditto.
2122         * collect2.c: Ditto.
2123         * reload1.c: Ditto.
2124
2125 2006-01-31  Nicolas Pitre  <nico@cam.org>
2126
2127         * arm.md (smaxsi3): Make aware of smax_m1.
2128         (smax_m1): New.
2129
2130 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2131
2132         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2133
2134 2006-01-31  Richard Guenther  <rguenther@suse.de>
2135
2136         * doc/invoke.texi (-msselibm): Document.
2137         * target.h (expand_library_builtin): New target hook.
2138         * builtins.c (expand_builtin): Use expand_library_builtin.
2139         (default_expand_library_builtin): New function.
2140         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2141         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2142         (link_gcc_math_spec): Declare.
2143         (static_specs): Add link_gcc_math_spec.
2144         * expr.h (default_expand_library_builtin): Declare.
2145         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2146         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
2147         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
2148         * config/i386/i386.opt (msselibm): New target option.
2149         * config/i386/i386.c (ix86_builtin_function_variants): New array.
2150         (ix86_init_sse_abi_builtins): New function.
2151         (ix86_expand_library_builtin): Likewise.
2152         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2153         (override_options): Handle error conditions wrt -msselibm.
2154         (ix86_builtins): Add function codes for SSE2 ABI builtins.
2155         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
2156         * doc/extend.texi (__builtin_sse2_*): Document new target specific
2157         builtins.
2158
2159 2006-01-31  Richard Guenther  <rguenther@suse.de>
2160         Paolo Bonzini  <bonzini@gnu.org>
2161
2162         * doc/install.texi (--disable-libgcc-math): Document.
2163
2164 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
2165
2166         * expr.h (expand_normal): new inline function.
2167         * builtins.c: use it, use EXPAND_NORMAL explicitely.
2168         * dojump.c: use it.
2169         * dwarf2out.c: use it.
2170         * expr.c: use it.
2171         * calls.c: use it.
2172         * expmed.c: use it.
2173         * except.c: use it.
2174         * config/sparc/sparc.c: use it.
2175         * config/i386/i386.c: use it.
2176         * config/rs6000/rs6000.c: use it.
2177         * config/arm/arm.c: use it.
2178         * config/mips/mips.c: use it.
2179         * stmt.c: use it, use EXPAND_NORMAL explicitely.
2180
2181 2006-01-30  Roger Sayle  <roger@eyesopen.com>
2182
2183         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
2184         argv to the appropriate type.
2185
2186 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
2187
2188         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
2189         unreachable code.
2190
2191 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
2192
2193         PR target/26018
2194         * config/s390/s390.c (struct machine_function): New flag
2195         decomposed_literal_pool_addresses_ok_p.
2196         (s390_reorg): Set it before final stage of literal pool transforms.
2197         (s390_decompose_address): Only accept displacements of the form
2198         (minus (label_ref ...) (label_ref ...)) if that flag is set.
2199
2200 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
2201
2202         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
2203         the comparison routine return.
2204
2205 2006-01-30  Michael Matz  <matz@suse.de>
2206
2207         * global.c (find_reg): Only evict for global regs.
2208         Take n_refs into account and dump more info.
2209
2210 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
2211
2212         PR target/14798:
2213         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
2214         (pragma_trap, pragma_nosave_low_regs): Likewise.
2215         (current_function_anonymous_args): Likewise.
2216         (sh_deferred_function_attributes): New variable.
2217         (sh_deferred_function_attributes_tail): Likewise.
2218         (print_operand): For '@', look up trap_exit attribute.
2219         (calc_live_regs): Look up trapa_handler attribute.  For trapa
2220         handlers, save/restore fpscr, but don't do any other
2221         interrupt-specific saves.
2222         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
2223         Fix check for partially saved registers to check for SHmedia.
2224         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
2225         (sh_output_function_epilogue): Don't clear any of the removed
2226         variables.
2227         (sh_insert_attributes): Don't check pragma_interrupt.
2228         Insert deferred attributes.  Check that interrupt attribute is
2229         present for other attributes that require its presence.
2230         (sh_attribute_table): Add new attributes trapa_handler and
2231         nosave_low_regs.
2232         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
2233         Don't check for pragma_interrupt.  Don't store argument.
2234         * sh.h (pragma_interrupt, sp_switch): Don't declare.
2235         (sh_deferred_function_attributes): Declare.
2236         (sh_deferred_function_attributes_tail): Likewise.
2237         * sh.md (sp_switch_1): Add operand.  Change generator caller.
2238         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
2239         (*return_i): Don't use when trap_exit attribute is in effect.
2240         (*return_trapa): New insn pattern.
2241         * sh-c.c: New file.
2242         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
2243         setting c_target_objs and cxx_target_objs.
2244         * t-sh: Add rule for sh-c.o.
2245
2246 2006-01-30  Richard Guenther  <rguenther@suse.de>
2247
2248         PR c++/23372
2249         * gimplify.c (gimplify_target_expr): Handle easy cases
2250         without creating a temporary.
2251
2252 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
2253
2254         * vec.h (safe_grow): Remove duplicated line.
2255
2256 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
2257
2258         PR 25874
2259         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
2260         (expand_omp): ... here.
2261         (expand_omp_parallel): Only remove barriers for combined
2262         parallel+workshare constructs.
2263
2264 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2265
2266         Revert
2267
2268         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
2269         * tree.c (build_qualified_type): Chain the new type to the original
2270         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
2271         a POINTER_TYPE or a REFERENCE_TYPE respectively.
2272         (build_pointer_type_for_mode): Only return unqualified types.
2273         (build_reference_type_for_mode): Likewise.
2274
2275 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
2276
2277         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
2278         * Makefile.in (CXX_COMPAT_WARN): Define.
2279         * configure: Regenerate.
2280
2281 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2282
2283         PR tree-opt/25911
2284         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
2285         to an if check.
2286
2287 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2288
2289         * toplev.c: Fix thinko.
2290
2291 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2292             Marcin Dalecki  <martin@dalecki.de>
2293
2294         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
2295         (push_srcloc): Use XNEW.
2296         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
2297
2298 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
2299
2300         * df-core.c (df_set_blocks): Deleted all variable.
2301
2302 2006-01-28  Ian Lance Taylor  <ian@airs.com>
2303
2304         * cgraphunit.c (cgraph_assemble_pending_functions): Call
2305         cgraph_output_pending_asms.
2306
2307 2006-01-28  Zack Weinberg  <zackw@panix.com>
2308
2309         * c.opt: Add -W(no-)overlength-strings.
2310         * doc/invoke.texi: Document it.
2311         * c-opts.c (c_common_handle_option): -pedantic implies
2312         -Woverlength-strings, if not explicitly disabled already.
2313         (c_common_post_options): -Woverlength-strings defaults to off, and
2314         is always off for C++.
2315         * c-common.c (fix_string_type): Issue warning about strings longer
2316         than is portable only if warn_overlength_strings.  Rearrange code
2317         a little for clarity.
2318         * configure.in: Check for -Wno-overlength-strings as well before
2319         enabling -pedantic in stage 1.
2320         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
2321         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
2322
2323         * genconditions.c (write_header, write_one_condition)
2324         (write_conditions, write_writer): Consolidate very long strings
2325         that were broken up to fit in C89 portable limit.  Don't use
2326         printf when fputs will do.
2327
2328 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
2329
2330         * combine.c (simplify_comparison <AND>): Check
2331         TRULY_NOOP_TRUNCATION before start using a subreg.
2332
2333         * config/mips/mips.md (*branch_zero<mode>,
2334         *branch_zero<mode>_inverted, *branch_equality<mode>,
2335         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
2336         Remove mode check from comparisons.
2337
2338 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
2339
2340         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
2341
2342 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2343
2344         * expmed.c (const_mult_add_overflow_p): Remove.
2345         * expr.h: Remove the prototype for const_mult_add_overflow_p.
2346
2347         * recog.c (validate_replace_rtx_subexp): Remove.
2348         * recog.h: Remove the prototype for
2349         validate_replace_rtx_subexp.
2350
2351         * integrate.h: Remove the prototype for
2352         copy_decl_for_inlining.
2353         * rtl.h: Remove the prototype for mark_constant_function.
2354         * tree-vectorizer.h: Remove the prototype for
2355         vect_strip_conversion.
2356
2357         * modulo-sched.c (create_partial_schedule,
2358         free_partial_schedule, reset_partial_schedule): Make them
2359         static.
2360
2361         * hooks.c (hook_bool_rtx_int_false): Remove.
2362         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
2363
2364 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
2365
2366         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2367         and -mlong-double-128 are incompatible.
2368         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
2369         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
2370         (TARGET_LIBGCC2_CFLAGS): Define.
2371         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
2372         (TARGET_LIBGCC2_CFLAGS): Same.
2373         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
2374
2375 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2376
2377         PR c/19606.
2378         * c-typeck.c (build_binary_op): Perform implicit casts of
2379         operands before shortening them.
2380
2381         * cfgloopmanip.c (split_loop_bb): Remove.
2382         * cfgloop.h: Remove the prototype for split_loop_bb.
2383
2384         * cfgloop.c (flow_loop_outside_edge_p): Remove.
2385         * cfgloop.h: Remove the prototype for
2386         flow_loop_outside_edge_p.
2387
2388         * emit-rtl.c (init_virtual_regs): Make it static.
2389         * function.h: Remove the prototype for init_virtual_regs.
2390
2391         * recog.c (peephole2_optimize): Make it static.
2392         * recog.h: Remove the prototype for peephole2_optimize.
2393
2394 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2395
2396         * df-scan.c (df_record_entry_block_defs): Check if
2397         INCOMING_RETURN_ADDR_RTX is defined.
2398
2399 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
2400             Kenneth Zadeck <zadeck@naturalbridge.com>
2401
2402         PR rtl-optimization/24762
2403         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2404         * targhooks.c (hook_void_bitmap): New hook prototype.
2405         * targhoohs.h (hook_void_bitmap): Ditto.
2406         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
2407         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
2408         * target.h (live_on_entry): New function pointer.
2409         * df-scan.c (df_all_hard_regs): Removed.
2410         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
2411         (df_scan_free_internal): Added df->entry_block_defs.
2412         (df_scan_alloc): Ditto.
2413         (df_scan_dump): Ditto.
2414         (df_uses_record): Plumbed flag field properly thru calls.
2415         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
2416         This part fixes PR24762.
2417         (df_bb_refs_record): Added code to make the frame and arg
2418         pointers live in EH blocks.
2419         (df_refs_record): Added call to df_record_entry_block_defs.
2420         (df_record_entry_block_defs): New function.
2421         * df-core.c: Added comments to describe new artifical defs.
2422         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
2423         (entry_block_defs): New field in struct df.
2424         (df_all_hard_regs): Deleted.
2425         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2426         * df-problems.c (df_ru_bb_local_compute_process_def):
2427         Added code to handle artifical defs in the entry to a function.
2428         (df_ru_bb_local_compute): Ditto.
2429         (df_rd_bb_local_compute_process_def):  Ditto.
2430         (df_rd_bb_local_compute): Ditto.
2431         (df_lr_bb_local_compute): Ditto.
2432         (df_ur_bb_local_compute): Ditto.
2433         (df_urec_bb_local_compute):  Ditto.
2434         (df_chain_create_bb):  Ditto.
2435         (df_ur_local_finalize): Removed entry.
2436         (df_urec_init): Ditto.
2437         (df_urec_local_finalize): Ditto.
2438         (df_ri_bb_compute): Added detection of last use of pseudos.
2439         * Makefile.in (df-scan.o): Updated dependencies.
2440         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
2441         * config/mips/mips.c (mips_set_live_on_entry): Added.
2442         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
2443         for target hook.
2444         * dce.c (marked_insn_p): Added code to handle artifical defs.
2445
2446 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2447
2448         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
2449         intrinsic.
2450         (_mm_cvtsi128_si64): Likewise.
2451         (_mm_cvtsd_si64): Likewise.
2452         (_mm_cvttsd_si64): Likewise.
2453         (_mm_cvtsi64_sd): Likewise.
2454         (_mm_cvtsi64_si128): Likewise.
2455         * config/i386/mmintrin.h (_m_from_int64): Likewise.
2456         (_mm_cvtsi64_m64): Likewise.
2457         (_m_to_int64): Likewise.
2458         (_mm_cvtm64_si64): Likewise.
2459         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
2460         (_mm_cvttss_si64): Likewise.
2461         (_mm_cvtsi64_ss): Likewise.
2462         (_mm_cvtss_f32): Likewise.
2463
2464 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
2465
2466         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
2467         for pragma redefine_extname.
2468
2469 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
2470
2471         PR target/25864
2472         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
2473         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
2474         -mno-minimal-toc to previous content.
2475         (bispecs): Remove goal.
2476         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
2477         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
2478         compatibility aliases on powerpc-*-*gnu*.
2479         * config/rs6000/libgcc-ppc-glibc.ver: New file.
2480         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
2481         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
2482         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
2483         (ldblspecs): New goal.
2484         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
2485         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
2486         _df_to_tf.
2487         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
2488         L_sf_to_tf or L_df_to_tf is defined.
2489
2490 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
2491             Alan Modra  <amodra@bigpond.net.au>
2492
2493         PR target/25864
2494         * config/rs6000/linux.h (POWERPC_LINUX): Define.
2495         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
2496         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
2497         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
2498         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
2499         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
2500         (rs6000_override_options): Initialize rs6000_ieeequad.
2501         Initialize TFmode format to ibm_extended_format if not
2502         TARGET_IEEEQUAD.
2503         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
2504         ieeelongdouble.
2505         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
2506         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
2507         (function_arg_advance): IBM long double passed in two FPRs, not
2508         split.
2509         (function_arg): IBM long double passed in FPRs.
2510         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
2511         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
2512         Only multireg GPR aligned.
2513         (rs6000_init_libfuncs): Enable IBM long double functions if not
2514         IEEEQUAD.
2515         (rs6000_generate_compare): Use IBM long double compare if not
2516         TARGET_IEEEQUAD.
2517         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
2518         (TARGET_IEEEQUAD): Define.
2519         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
2520         not TARGET_IEEEQUAD.
2521         * config/rs6000/rs6000.md: Enable TFmode patterns if
2522         !TARGET_IEEEQUAD.
2523         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
2524         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2525         and -mlong-double-128 are incompatible.
2526         * doc/invoke.texi (-mabi): Collect options together.  Add
2527         ibmlongdouble and ieeelongdouble.
2528
2529 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
2530
2531         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
2532         opaque type.
2533         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
2534         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
2535         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
2536         * rtl.h (rtunion_def): Remove rt_ptr.
2537         (X0PTR): Delete.
2538         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
2539         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
2540         * config/i386/winnt.c (i386_pe_mark_dllexport)
2541         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
2542
2543 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
2544
2545         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
2546
2547 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
2548
2549         PR other/24829
2550         PR target/24831
2551         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
2552         pthread_key_delete.  From John David Anglin.  gthrw-ify
2553         pthread_getunique_np only if it it's not a macro.  Delete
2554         UNUSED macro.
2555         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
2556         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
2557         __gthread_objc_condition_signal, __gthread_key_delete): Add
2558         "__attribute__ ((__unused__))" to unused arguments.
2559         (__gthread_recursive_mutex_init_function): Add missing return.
2560         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
2561         gthr-posix95.h: Use macro-based approach for name redirection
2562         on targets missing weakref.
2563
2564 2006-01-26  Zack Weinberg  <zackw@panix.com>
2565
2566         * genconditions.c (write_header): In generated code, #ifdef out
2567         all includes and fake declarations, except includes of bconfig.h
2568         and system.h, unless GCC_VERSION >= 3001.  Do not include
2569         gensupport.h in any case.
2570         (write_conditions): Generate a definition of struct c_test.  Add
2571         a comment to the generated #endif.
2572         (write_one_condition): Escape backslashes in string too.
2573         (write_writer): Generated code must escape backslashes and quote
2574         marks (but not newlines) in the strings it writes.
2575         * Makefile.in (build/gencondmd.o): Update dependencies.
2576
2577 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2578
2579         PR target/25961
2580         * Makefile.in (insn-automata.o): Add header file dependencies.
2581         * genautomata.c: Add includes.
2582
2583 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2584
2585         PR target/25961
2586         * Makefile.in (insn-automata.o): Add -Wno-error flag.
2587
2588 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2589
2590         * configure.ac: Expect target tools paths to be passed from the toplevel
2591         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
2592         AS_SET_VAR_IF.
2593         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
2594
2595 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
2596
2597         PR c/25892
2598         * c.opt (Wpointer-sign): Init to -1.
2599         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
2600         OPT_pedantic, to 0 otherwise.
2601         * doc/invoke.texi: Update.
2602
2603 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2604
2605         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
2606         constants provided by 80387 instructions in the destination mode.
2607
2608 2006-01-26  Richard Guenther  <rguenther@suse.de>
2609             Andrew Pinski  <pinskia@physics.uc.edu>
2610
2611         PR tree-opt/21470
2612         partial PR tree-opt/17064
2613         * tree-ssa-structalias.c (intra_create_variable_infos):
2614         Create heap variables for incoming parameters if
2615         flag_argument_noalias > 1.
2616         (find_what_p_points_to): Look through default defs of
2617         parameter decls.
2618
2619 2006-01-26  Jeff Law  <law@redhat.com>
2620
2621         PR ada/25900
2622         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
2623         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
2624         within the VR_RANGE, use the VR_RANGE as the result, not the
2625         VR_ANTI_RANGE.
2626         (adjust_range_with_scev): Reject ranges from SCEV which are out of
2627         bounds for the type.
2628
2629 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
2630
2631         * tree-ssa-alias.c (maybe_create_global_var): Change
2632         subvar walking to an assertion that we don't have subvar'd variables.
2633
2634 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
2635
2636         PR C/25861
2637         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
2638         Use a new variable, inner.  PARM_DECLs are always non-weak.
2639
2640 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
2641
2642         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
2643         --disable-checking.
2644
2645 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
2646
2647         * config/mips/mips.md (*clear_upper32): New combiner pattern.
2648
2649 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
2650
2651         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
2652         (smax_insn, smin_insn, smax_0, smin_0): New.
2653
2654 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
2655
2656         PR target/25947
2657         * config/cris/cris.c (cris_order_for_addsi3): New function.
2658         * config/cris/cris-protos.h: Prototype it.
2659         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
2660         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
2661         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
2662         (split for "op.S1 [rx=rx+i],ry (swapped)")
2663         (split for "op(s|u).S1 [rx=rx+i],ry")
2664         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
2665         Apply cris_order_for_addsi3 when generating addsi3 insns.
2666
2667 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2668
2669         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
2670         (TREE_BLOCK): Add call to EXPR_CHECK.
2671
2672 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2673
2674         PR 25886
2675         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
2676         * tree-pretty-print.c (dump_omp_clause): Extract from ...
2677         (dump_omp_clauses): ... here.
2678         (dump_generic_node): Handle OMP_CLAUSE.
2679         * tree.c (omp_clause_num_ops): New.
2680         (omp_clause_code_name): New.
2681         (tree_code_size): Handle OMP_CLAUSE.
2682         (tree_size): Likewise.
2683         (make_node): Document handling of OMP_CLAUSE.
2684         (tree_node_structure): Handle OMP_CLAUSE.
2685         (omp_clause_check_failed): New.
2686         (omp_clause_range_check_failed): New.
2687         (omp_clause_operand_check_failed): New.
2688         (build_omp_clause): New.
2689         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
2690         * tree.h (enum omp_clause_code): Declare.
2691         (OMP_CLAUSE_SUBCODE_CHECK): Define.
2692         (OMP_CLAUSE_RANGE_CHECK): Define.
2693         (OMP_CLAUSE_ELT_CHECK): Define.
2694         (omp_clause_check_failed): Declare.
2695         (omp_clause_operand_check_failed): Declare.
2696         (omp_clause_range_check_failed): Declare.
2697         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
2698         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
2699         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
2700         (OMP_CLAUSE_LASTPRIVATE): Likewise.
2701         (OMP_CLAUSE_IF_EXPR): Likewise.
2702         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
2703         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
2704         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
2705         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
2706         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
2707         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
2708         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
2709         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
2710         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
2711         (OMP_CLAUSE_CODE): Define.
2712         (OMP_CLAUSE_SET_CODE): Define.
2713         (OMP_CLAUSE_CODE): Define.
2714         (OMP_CLAUSE_OPERAND): Define.
2715         (struct tree_omp_clause): Declare.
2716         (union tree_node): Add field 'omp_clause'.
2717         * treestruct.def (TS_OMP_CLAUSE): Define.
2718         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
2719         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
2720         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
2721         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
2722         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
2723         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
2724         (OMP_CLAUSE): Define.
2725         * print-tree.c (print_node): Handle OMP_CLAUSE.
2726         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
2727         * c-typeck.c: Likewise.
2728         * gimplify.c: Likewise.
2729         * c-omp.c: Likewise.
2730         * tree-nested.c: Likewise.
2731         * tree-inline.c: Likewise.
2732         * c-parser.c: Likewise.
2733         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
2734         clauses.
2735
2736 2006-01-25  Roger Sayle  <roger@eyesopen.com>
2737
2738         PR rtl-optimization/25703
2739         * combine.c (try_combine): Handle zero_extract and strict_low_part
2740         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
2741
2742 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
2743
2744         * global.c: Fix comment typos.
2745
2746 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
2747
2748         PR target/25758
2749         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
2750         Use output_addr_const instead of assemble_name.
2751
2752 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
2753
2754         * Makefile.in (sched-vis.o): Update dependencies.
2755         * haifa-sched.c (sched_finish): Clear current_sched_info.
2756         * cfg.c (dump_bb_info): New, split from dump_flow_info.
2757         (dump_flow_info): Call it.
2758         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
2759         a slim RTL dump.
2760         * basic-block.h (dump_bb_info): Declare.
2761         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
2762         option, and apply options only for dump files whose TDF_RTL,
2763         TDF_TREE, or TDF_IPA bits match.
2764         * rtl.h: Declare new functions exported from sched-vis.c.
2765         * sched-vis.c: Enable also if scheduling is not used.
2766         (print_value): Print the mode of registers if not inside scheduling.
2767         (print_insn): Make it work outside the scheduler.  Beautify the output
2768         a bit.
2769         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
2770
2771 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2772
2773         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
2774         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
2775         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
2776         depending on the value of CONSTANT_POOL_ADDRESS_P.
2777         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
2778         SYMBOL_REF_DECL.
2779         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
2780         rather than SYMBOL_REF_DECL.
2781         (rtx_constant_pool): Remove const_rtx_sym_htab.
2782         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
2783         (init_varasm_status): Don't initialize const_rtx_sym_htab.
2784         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
2785         Remove handling of const_rtx_sym_htab.
2786         (find_pool_constant): Delete.
2787         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
2788         rather than find_pool_constant.
2789         (get_pool_constant_for_function): Delete.
2790         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
2791         find_pool_constant.
2792         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
2793         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
2794         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
2795         (SYMBOL_REF_CONSTANT): New macro.
2796         (get_pool_constant_for_function): Delete.
2797         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
2798         rather than SYMBOL_REF_DECL.
2799         (i386_pe_mark_dllimport): Likewise.
2800         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
2801         rather than SYMBOL_REF_DECL.
2802         * config/darwin.c (machopic_indirect_data_reference): Likewise.
2803         (machopic_indirect_call_target): Likewise.
2804
2805 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
2806
2807         * flow.c (delete_noop_moves): Add missing EOL to dump message.
2808
2809 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2810
2811         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
2812
2813 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
2814
2815         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
2816
2817 2006-01-24  David Daney  <ddaney@avtrex.com>
2818
2819         PR java/25816
2820         * configure.ac (enable_tls): New enable option.
2821         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
2822         * configure: Regenerate.
2823         * doc/install.texi (--enable-tls): Document new option.
2824         (--disable-tls): Ditto.
2825
2826 2006-01-24  Richard Henderson  <rth@redehat.com>
2827
2828         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
2829         * alias.c (true_dependence): Respect it.
2830         (canon_true_dependence, write_dependence_p): Likewise.
2831         * builtins.c (get_builtin_sync_mem): Set it.
2832
2833 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
2834
2835         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
2836         efficient way.
2837
2838 2006-01-24  DJ Delorie  <dj@redhat.com>
2839
2840         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2841         for storing constants in single-bit bitfields.
2842
2843 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2844
2845         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2846
2847 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2848
2849         PR tree-opt/25860
2850         * tree-ssa-pre.c (phi_translate): Return NULL
2851         for AGGREGATE_TYPE's.
2852
2853 2006-01-24  Zack Weinberg  <zackw@panix.com>
2854
2855         * genautomata.c (process_state_for_insn_equiv_partition):
2856         Use xcalloc for insn_arcs_array.
2857         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2858         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2859
2860 2006-01-24  Richard Henderson  <rth@redhat.com>
2861
2862         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2863         update all callers.
2864
2865 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2866
2867         PR rtl-optimization/25890
2868         PR rtl-optimization/25905
2869         * combine.c (expand_compound_operation, expand_field_assignment):
2870         Fail if the bitfield's final position is out of bounds.
2871
2872 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2873
2874         PR middle-end/25930
2875         * cgraphunit.c (cgraph_output_in_order): Don't clear
2876         cgraph_asm_nodes until after asm strings have been output.
2877
2878 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2879
2880         * fix-header.c (read_scan_file): Add new parameter imultilib when
2881         calling register_include_chains.
2882
2883 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2884
2885         * omp-low.c: Update documentation.
2886
2887 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2888             Daniel Berlin  <dberlin@dberlin.org>
2889
2890         PR tree-opt/25315
2891         PR tree-opt/25857
2892         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2893         return from the function.
2894
2895 2006-01-22  Zack Weinberg  <zackw@panix.com>
2896
2897         * rtl.def (match_code): Add second argument.
2898         * genpreds.c (write_extract_subexp): New function.
2899         (write_match_code): Add path argument.  Use write_extract_subexp.
2900         (write_predicate_expr): Pass path to write_match_code.
2901         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2902         not perform a mode test.
2903         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2904         a subexpression does not constrain the top-level code set.
2905         * read-rtl.c (read_rtx_variadic): New function.
2906         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2907         * doc/md.texi: Document new notation.
2908         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2909         (cmpsi_operand): ... here, using new notation.
2910
2911 2006-01-22  Zack Weinberg  <zackw@panix.com>
2912
2913         * varray.c: Remove GENERATOR_FILE #ifdefs.
2914
2915 2006-01-22  Zack Weinberg  <zackw@panix.com>
2916
2917         * genautomata.c (output_reserved_units_table): Emit nothing if
2918         description->query_units_num is zero.  Remove extra blank line.
2919         (output_cpu_unit_reservation_p): Short circuit
2920         if description->query_units_num is zero.
2921
2922 2006-01-22  Zack Weinberg  <zackw@panix.com>
2923
2924         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2925         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2926         nor any of the random handful of variables that used to be necessary
2927         when this program was linked with rtlanal.o.  Prune set of forward
2928         function declarations.
2929         (struct attr_desc): Remove static_p field.
2930         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2931         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2932         (attr_string): Do not read the character one past the length of
2933         the string.
2934         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2935         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2936         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2937         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2938         (make_automaton_attrs): New.
2939         (main): Do not call into genautomata.  Call local gen_bypass
2940         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2941         Remove special case for insn_alts.
2942         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2943         varray.h (leftover from previous change).  Prune set of forward
2944         function declarations.  Remove state_alts fields from all
2945         structures.  Remove state_alts_table from struct automaton.
2946         Make everything except main static.  Do not maintain num_dfa_decls.
2947         Do not maintain state_alts fields of various structures.
2948         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2949         (add_arc): Remove state_alts argument.  All callers updated.
2950         (output_reserved_units_table): Emit #ifdef here...
2951         (output_tables): ...not here.  Don't generate state_alts tables.
2952         (expand_automata): Don't generate attributes.
2953         (write_automata): Don't generate state_alts functions.
2954         (main): New function.
2955         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
2956         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
2957         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
2958         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
2959         (BYPASS_P_FUNC_NAME, output_state_alts_table)
2960         (output_automata_list_state_alts_code, output_internal_state_alts_func)
2961         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
2962         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
2963         Delete.
2964         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
2965         * genattrtab.h: Delete file.
2966         * Makefile.in (OBJS-common): Add insn-automata.o.
2967         (insn-automata.o): New rule.
2968         (simple_generated_c): Add insn-automata.c.
2969         (build/genattrtab.o, build/genautomata.o): Update dependencies.
2970         (genprogmd): Add automata.
2971         (build/genattrtab): Needs no extra objects nor libraries.
2972         (build/genautomata): Needs build/vec.o and -lm.
2973
2974 2006-01-22  Zack Weinberg  <zackw@panix.com>
2975
2976         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
2977         (output_dfa_max_issue_rate, locked_states_num): Delete.
2978         (struct automaton): Add locked_states field.
2979         (output_dead_lock_vect): Save number of locked states in
2980         automaton->locked_states.  If it is zero, don't print anything.
2981         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
2982         (output_internal_dead_lock_func): Only test the dead_lock_vect
2983         for automata that have locked states.
2984         (output_statistics): Always print the number of locked states for
2985         each automaton.  Calculate total number of locked states here.
2986         (write_automata): Don't call output_dfa_max_issue_rate.
2987         * genattrtab.c: Define length_unit_log as a const variable.
2988         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
2989         max_insn_queue_index const.
2990         * final.c (length_unit_log): Declare const.
2991         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
2992
2993 2006-01-22  Zack Weinberg  <zackw@panix.com>
2994
2995         * genautomata.c:  Include vec.h, not varray.h.
2996         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
2997         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
2998         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
2999         VEC_* macros operating on appropriately typed vectors, or to
3000         malloced arrays when the size is known in advance.  Const-ify
3001         many char* variables and function arguments.  No functional changes.
3002         * Makefile.in (build/varray.o): Delete rule.
3003         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3004         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3005
3006 2006-01-22  Zack Weinberg  <zackw@panix.com>
3007
3008         * gensupport.c: Define get_insn_name and record_insn_name here.
3009         (read_md_rtx): Call record_insn_name as appropriate.
3010         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3011         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3012         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3013         record_insn_name.
3014         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3015         (BUILD_VARRAY): Delete.
3016         (genprognormal): Rename genprogmd.  Fold in all programs from
3017         genprognoprint; also attrtab.
3018         (build/genattrtab): Just mention genautomata.o and varray.o.
3019         Reorganize a bit, add comments to make the categories clearer.
3020
3021 2006-01-22  Zack Weinberg  <zackw@panix.com>
3022
3023         * genconditions.c (condition_table, add_condition): Delete.
3024         (write_conditions): Don't emit n_insn_conditions nor
3025         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3026         inside the table, with no #else clause ...
3027         (write_header): ...not here.
3028         (write_writer): New function.
3029         (main): Don't initialize condition_table.  Use add_c_test.
3030         Call write_writer.
3031         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3032         files on the command line.
3033         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3034         Return -1 if there is no entry in the table, don't abort.
3035         (add_c_test, traverse_c_tests): New functions.
3036         * gensupport.h (insn_elision_unavailable, insn_conditions)
3037         (n_insn_conditions): Delete declarations.
3038         (add_c_test, traverse_c_tests): Declare.
3039         * read-rtl.c: Include gensupport.h.
3040         (read_conditions): New function.
3041         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3042         (read_rtx_1): If we get EOF when we were looking for an initial
3043         open paren, return 0.  Call read_conditions when appropriate.
3044         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3045         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3046         or change them to build/gencondmd.o, as appropriate.  Remove
3047         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3048         from $(simple_generated_c).  For all files remaining in those
3049         two lists, add insn-conditions.md to the generator command line.
3050         Give insn-constants.h/s-constants their own rules.  Add rules
3051         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3052         (build/read-rtl.o): Depend on gensupport.h.
3053         (genprognormal): Include preds.
3054         (genprogearly): Rename genprognoprint; only difference is now that
3055         they don't link with $(BUILD_PRINT).
3056         * dummy-conditions.c: Delete.
3057
3058 2006-01-22  Zack Weinberg  <zackw@panix.com>
3059
3060         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3061         Declare vectors of int, char, and locstr.
3062         (locstr): New typedef.
3063         (struct extraction): Make all array fields into bare pointers.
3064         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3065         (insn_code_number): Delete.
3066         (accum_extract): New struct.
3067         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3068         (gen_insn): Take insn_code_number as an argument.  Use an
3069         accum_extract structure instead of loading data directly into
3070         a struct extraction, and having to know how big it might get.
3071         (walk_rtx): Operate entirely on an accum_extract structure.
3072         (print_path): Avoid unnecessary use of printf.
3073         (print_header): New function, split out of main.  Distinguish
3074         more carefully between an unrecognizable insn and an insn that
3075         has the code number of a define_expand.
3076         (main): Pass insn_code_number to gen_insn.  Call print_header
3077         only after parsing.  Avoid unnecessary use of printf.
3078         * Makefile.in (build/vec.o): New rule.
3079         (build/genextract): Depend on build/vec.o.
3080         (build/genextract.o): Don't depend on insn-config.h.
3081
3082 2006-01-22  Zack Weinberg  <zackw@panix.com>
3083
3084         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3085         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3086         practical.  Eliminate per-generator-program link rules.
3087
3088 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3089
3090         PR middle-end/24437
3091         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3092         with a call expr to ...
3093         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3094
3095 2006-01-23  Richard Guenther  <rguenther@suse.de>
3096
3097         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3098         before make_edge with conditional EDGE_TRUE_VALUE.
3099
3100 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3101         Jan Hubicka  <jh@suse.cz>
3102         Richard Guenther  <rguenther@suse.de>
3103
3104         PR rtl-optimization/25654
3105         * cfgexpand.c (aggregate_contains_union_type): New function.
3106         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3107         for structure variables that contain a union type.
3108
3109 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3110
3111         * gengtype.c (new_structure): Return the structure.
3112         (create_option): Add an extra "next" argument.
3113         (create_field): New function.
3114         (adjust_field_rtx_def): Use create_option and create_field.
3115         Remove a now-unnecessary call to find_structure.
3116         (adjust_field_tree_def): Likewise.
3117         (note_yacc_type): Remove an unnecessary call to find_structure.
3118         * gengtype.h (new_structure): Return the structure.
3119         (create_option): Add an extra argument.
3120         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3121         (option): Adjust calls to create_option.
3122
3123 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3124
3125         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3126
3127 2006-01-22  Paul Brook  <paul@codesourcery.com>
3128         Peter Barada  <peter@the-baradas.com>
3129
3130         * config/m68k/m68k.md: Add Coldfire FPU support.
3131         Define FP mode macro and associated attributes.
3132         Use it for float mode patterns.
3133         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3134         (LIBCALL_VALUE): Use m68k_libcall_value.
3135         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3136         (m68k_function_value): Ditto.
3137         (emit_move_sequence): Ditto.
3138         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3139         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3140         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3141         (MULTILIB_EXCEPTIONS): Ditto.
3142         * config/m68k/m68k.opt: Add mcfv4e.
3143         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3144         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3145         (m68k_output_function_prologue): Save ColdFire FPU registers.
3146         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
3147         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
3148         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
3149         ColdFire FPU registers.
3150         (m68k_libcall_value, m68k_function_value): New functions.
3151         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
3152         (LIBCALL_VALUE): Use m68k_libcall_value.
3153         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
3154         (MASK_COLDFIRE): Add MASK_CFV4E.
3155         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
3156         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
3157         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
3158         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
3159         (GO_IF_LEGITIMATE_ADDRESS): Use it.
3160         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
3161         * doc/invoke.tex: Document -mcfv4e on m68k.
3162
3163 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
3164
3165         * doc/contribute.texi: Change CVS to SVN and update the corresponding
3166         URL.
3167
3168 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3169
3170         PR c++/16190
3171         * c-opts.c (c_common_handle_option): Don't include
3172         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
3173         * doc/invoke.texi (C++ Dialect Options): Document that
3174         -Wnon-virtual-dtor is no longer included in -Wall.
3175
3176 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
3177
3178         * gcov.c (print_version), gcov-dump.c (print_version),
3179         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
3180         dates.
3181
3182 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
3183
3184         * df-scan.c (problem_SCAN): Added NULL reset function.
3185         (df_scan_reset_blocks): Added code to call reset block function
3186         (df_bb_refs_delete) Fixed comment.
3187         (df_insn_refs_delete): Made tolerant of deleting non existent info
3188         for dataflow problems that need to be reset.
3189         * df-core.c (df_set_blocks): Ditto.
3190         * df.h (struct df_problem): Added reset_fun.
3191         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
3192         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
3193         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
3194         functions to clear out all references to def-use or use-def chains.
3195
3196 2006-01-21  Ben Elliston  <bje@au.ibm.com>
3197
3198         * varasm.c (assemble_real): Initialise data array.
3199
3200 2006-01-20  Paul Brook  <paul@codesourcery.com>
3201
3202         Merge from csl-arm-branch.
3203         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
3204         * config/arm/arm.md (movdi): Force operands[1] to a register
3205         if we have a non-register source.
3206         (*arm_movdi, *movdf_soft_insn): Require that one of the
3207         operands be a register.
3208         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
3209         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
3210
3211 2006-01-20  DJ Delorie  <dj@redhat.com>
3212
3213         * varasm.c (initialize_constant_valid_p): Allow pointers
3214         initialized from integer constants of lesser precision.
3215         (output_constant): Allow non-int-sized pointer modes to be
3216         initialized from integer constants.
3217
3218 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
3219
3220         PR libstdc++/25524
3221         * cppdefault.h (struct default_include): Add multilib flag.
3222         * cppdefault.c (cpp_include_defaults): Set it.
3223         * c.opt (-imultilib): New option.
3224         * c-opts.c (imultilib): New.
3225         (c_common_handle_option): Handle -imultilib.
3226         (c_common_post_options): Likewise.
3227         * c-incpath.c (add_standard_paths, register_include_chains):
3228         Likewise.
3229         * c-incpath.h (register_include_chains): Add extra parameter.
3230         * gcc.c (do_spec_1): Generate -imultilib option.
3231         (The Specs Language): Update %I description.
3232         (process_command): Update copyright notice.
3233         * doc/cppopts.texi (-imultilib): Document.
3234         * doc/invoke.texi (-imultilib): Include in option summary.
3235         (%I): Update specs documentation.
3236
3237 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3238
3239         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
3240
3241 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
3242
3243         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
3244         label numbers.
3245
3246 2006-01-20  Richard Guenther  <rguenther@suse.de>
3247         Steven Bosscher <stevenb.gcc@gmail.com>
3248
3249         PR rtl-optimization/24626
3250         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
3251         EDGE_TRUE_VALUE if in RTL mode.
3252
3253         Revert
3254         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
3255         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
3256
3257 2006-01-20  Dirk Mueller  <dmueller@suse.com>
3258
3259         PR c++/5520
3260         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
3261         instead of a special NOP marker.
3262         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
3263         NOP marker handling.
3264         * c-common.h (empty_body_warning): Add forward declaration.
3265         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
3266         Now uses IS_EMPTY_STMT() instead of special NOP markers.
3267
3268 2006-01-20  Paul Brook  <paul@codesourcery.com>
3269
3270         * Makefile.in (lang_checks): Keep going if mkdir fails.
3271
3272 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3273
3274         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
3275         be able to clean out basic block when not necessary.
3276         (df_scan_free): Fixed to properly delete information if df is
3277         unused before calling df_finish.
3278         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
3279         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
3280         or comment typos.
3281         (df_bb_refs_delete): New function.
3282         (df_refs_delete): Moved per block code to df_bb_refs_delete.
3283         * df-core.c (df_set_blocks): Added code to properly clean out
3284         unused blocks if they are not part of the blocks to consider.
3285         Added additional null check.
3286         (df_compact_blocks): Added basic block parameter to free_bb_fun to
3287         be able to clean out basic block when not necessary
3288         * df.h (df_free_bb_function): Ditto.
3289         (df_bb_refs_delete): New function.
3290         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
3291         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
3292         basic block parameter to be able to clean out basic block when not
3293         necessary.
3294         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
3295         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
3296         Fixed to properly delete information if df is unused before
3297         calling df_finish.
3298
3299 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3300
3301         PR rtl-optimization/25799
3302         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
3303         Corrected confluence operator to remove bits from op2 before oring
3304         with op1 rather than removing bits from op1.
3305         (df_ru_transfer_function): Corrected test on wrong bitmap which
3306         caused infinite loop.  Both of these problems were introduced in
3307         the dataflow rewrite.
3308
3309 2006-01-19  DJ Delorie  <dj@redhat.com>
3310
3311         * reload1.c (find_reload_regs): Note the details of reload
3312         failures in the dump file.
3313         (spill_failure): Likewise.
3314
3315 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3316
3317         * loop-iv.c: Include df.h and hashtab.h.
3318         (enum iv_grd_result): New enum.
3319         (DF_REF_IV, DF_REF_IV_SET): New macros.
3320         (struct biv_entry): New.
3321         (df, bivs): New global variables.
3322         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
3323         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
3324         Removed.
3325         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
3326         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
3327         analyzed_for_bivness_p, record_biv): New functions.
3328         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
3329         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
3330         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
3331         UD chains.
3332         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
3333         analysed.
3334         (iv_number_of_iterations): Use new interface to iv analysis.
3335         * loop-unroll.c: Do not include varray.h.
3336         (analyze_iv_to_split_insn): Use new interface to iv
3337         analysis.
3338         * loop-unswitch.c (may_unswitch_on): Ditto.
3339         * df.c (df_bitmaps_free): Only work for bbs for that structures are
3340         allocated.
3341         (df_bb_modify): Realloc tables to the new index.
3342         (df_find_use): New function.
3343         * df.h (df_find_use): Declare.
3344         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
3345         outmode.
3346         * cfgloop.h (struct rtx_iv): Remove analysed field.
3347         (iv_get_reaching_def): Removed.
3348         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
3349         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
3350         (loop-iv.o): Add df.h and hashtab.h dependency.
3351         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
3352
3353 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
3354
3355         PR target/25668
3356         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
3357         Double TFmode.
3358         (__floatundisf, __floatundidf): Likewise.
3359         * libgcc2.h (IS_IBM_EXTENDED): Define.
3360
3361 2006-01-19  DJ Delorie  <dj@redhat.com>
3362
3363         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
3364
3365 2006-01-19  Paul Brook  <paul@codesourcery.com>
3366
3367         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
3368         as nothrow when unwinding tables are disabled.
3369
3370 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3371
3372         PR testsuite/25171
3373         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
3374         of bit-field" when in system header.
3375
3376 2006-01-19  DJ Delorie  <dj@redhat.com>
3377
3378         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
3379         the 16 bit shift limit of the m16c.
3380
3381 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
3382
3383         PR target/22099
3384         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
3385         * config/i386/i386.c (output_set_got): Output the label if we have one
3386         for the TARGET_DEEP_BRANCH_PREDICTION case.
3387
3388 2006-01-19  Jan Hubicka  <jh@suse.cz>
3389             H.J. Lu  <hongjiu.lu@intel.com>
3390             Evandro Menezes <evandro.menezes@amd.com>
3391
3392         * invoke.texi (generic): Document
3393         (i686) Update.
3394         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
3395         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
3396         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
3397         (x86_use_incdec, x86_pad_returns): New variables
3398         (TARGET_CPU_DEFAULT_generic): New constant
3399         (TARGET_CPU_DEFAULT_NAMES): Add generic.
3400         (enum processor_type): Add generic32 and generic64.
3401         * i386.md (cpu attribute): Add generic32/generic64
3402         (movhi splitter): Behave sanely when both partial_reg_dependency and
3403         partial_reg_stall are set.
3404         (K8 splitters): Enable for generic as well.
3405         * predicates.md (incdec_operand): Use TARGET_INCDEC
3406         (aligned_operand): Avoid memory mismatch stalls.
3407         * athlon.md: Enable for generic64, new patterns for 128bit moves.
3408         * ppro.md: Enable for generic32
3409         * i386.c (generic64_cost, generic32_cost): New.
3410         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
3411         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
3412         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
3413         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
3414         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
3415         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
3416         x86_partial_reg_dependency, x86_memory_mismatch_stall,
3417         x86_accumulate_outgoing_args, x86_prologue_using_move,
3418         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
3419         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
3420         Enable for generic.
3421         (x86_use_incdec, x86_pad_returns): New.
3422         (override_options): Add generic32 and generic64, translate "generic"
3423         to generic32/generic64 and "i686" to "generic32", refuse
3424         "generic32"/"generic64" as arch target.
3425         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
3426         (ix86_reorg): Honor PAD_RETURNS.
3427
3428 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
3429
3430         * tree-pretty-print.c (dump_generic_node): Handle
3431         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
3432         * cgraph.c (cgraph_expand_queue): Rename from
3433         cgraph_analyze_queue.  Update all users.
3434         * cgraphunit.c (cgraph_assemble_pending_functions): Process
3435         cgraph_expand_queue.
3436         (cgraph_expand_all_functions): Likewise.
3437         (cgraph_finalize_pending_functions): Remove.  Update callers.
3438
3439         * tree.h (OMP_DIRECTIVE_P): Define.
3440         (OMP_PARALLEL_FN): Define.
3441         (OMP_PARALLEL_DATA_ARG): Define.
3442         (OMP_SECTIONS_SECTIONS): Define.
3443         * tree-pass.h (pass_expand_omp): Declare.
3444         * omp-low.c (struct omp_region): Declare.
3445         (struct omp_context): Remove fields 'parallel_type',
3446         'parallel_start_ix' and 'parallel_start_additional_args'.
3447         Update all users.
3448         (struct omp_for_data): Rename from struct expand_omp_for_data.
3449         (omp_regions): New static variable.
3450         (root_omp_region): New static variable.
3451         (find_omp_clause): Make static.
3452         (is_in_combined_parallel_ctx): Remove.
3453         (is_combined_parallel): New.
3454         (extract_omp_for_data): Move earlier in the file.
3455         (workshare_safe_to_combine_p): New.
3456         (get_ws_args_for): New.
3457         (determine_parallel_type): Move earlier in the file.
3458         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
3459         child function.
3460         (omp_copy_decl): Likewise.
3461         (create_omp_child_function): Likewise.
3462         (lookup_omp_region): New.
3463         (dump_omp_region): New.
3464         (debug_omp_region): New.
3465         (debug_all_omp_regions): New.
3466         (new_omp_region): New.
3467         (scan_omp_parallel): If parallel_nesting_level > 1, the
3468         directive is nested within another parallel directive.
3469         Set OMP_PARALLEL_FN.
3470         (scan_omp_for): Do not try to handle combined parallel+for
3471         cases.
3472         Remove FIXME comment.
3473         (scan_omp_nested): Remove.
3474         (scan_omp_1): Do not call scan_omp_nested when
3475         parallel_nesting_level is > 1.
3476         Do not change the DECL_CONTEXT of local variables found.
3477         (lookup_decl_in_outer_ctx): New.
3478         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
3479         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
3480         (lower_reduction_clauses): Rename from expand_reduction_clauses.
3481         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
3482         If CTX is nested, lookup VAR in the outer context when
3483         building copy assignment.
3484         (lower_send_clauses): Rename from expand_send_clauses.
3485         If CTX is nested, lookup VAR in the outer context when
3486         building copy assignments.
3487         (lower_send_shared_vars): Rename from expand_send_shared_vars.
3488         If CTX is nested, lookup VAR in the outer context when
3489         building copy assignments.
3490         (expand_parallel_call): Rename from build_parallel_call.
3491         Handle combined parallel+workshare cases.
3492         Re-implement to emit code into the CFG.
3493         (list2chain): New.
3494         (expand_omp_parallel): Re-implement to emit code into the CFG.
3495         Call move_sese_region_to_fn to outline the sub-graph
3496         containing the parallel region.
3497         (expand_omp_for_1): Remove.
3498         (expand_omp_for_generic): Re-implement to emit code into the
3499         CFG.
3500         (expand_omp_for_static_nochunk): Likewise.
3501         (expand_omp_for_static_chunk): Likewise.
3502         (expand_omp_for): Likewise.
3503         (expand_omp_sections): Likewise.
3504         (remove_exit_barriers): New.
3505         (expand_omp_synch): New.
3506         (expand_omp): New.
3507         (build_omp_regions_1): New.
3508         (build_omp_regions): New.
3509         (execute_expand_omp): New.
3510         (gate_expand_omp): New.
3511         (pass_expand_omp): Define.
3512         (lower_omp_sections): Rename from expand_omp_sections.
3513         Set OMP_SECTIONS_SECTIONS.
3514         (lower_omp_single_simple): Rename from expand_omp_single_simple.
3515         (lower_omp_single_copy): Rename from expand_omp_single_copy.
3516         (lower_omp_single): Rename from expand_omp_simple.
3517         (lower_omp_master): Rename from expand_omp_master.
3518         (lower_omp_ordered): Rename from expand_omp_ordered.
3519         (lower_omp_critical): Rename from expand_omp_critical.
3520         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
3521         (lower_omp_for): Re-implement.
3522         (lower_omp_parallel): Re-implement.
3523         (lower_regimplify): Rename from expand_regimplify.
3524         (lower_omp_1): Rename from expand_omp_1.
3525         If there are syntax errors in the program, replace every
3526         OpenMP directive with NOP.
3527         Call lower_omp_* instead of expand_omp_*.
3528         (lower_omp): Rename from expand_omp.
3529
3530         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
3531         * tree-gimple.h (enum omp_parallel_type): Remove.
3532         (gimple_boolify): Declare extern.
3533         (find_omp_clause, determine_parallel_type): Remove.
3534
3535         * gimple-low.c (lower_omp_directive): New.
3536         (lower_stmt): Call it.
3537         (record_vars_into): Move from ...
3538         (record_vars): ... here.
3539         Call record_vars_into with current_function_decl.
3540
3541         * gimplify.c (struct gimplify_ctx): Remove fields
3542         combined_pre_p and combined_ctxp.  Update users.
3543         (get_formal_tmp_var): Add documentation.
3544         (gimple_boolify): Make extern.
3545         (gimplify_expr_in_ctx): Remove.  Update callers.
3546         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
3547         will always be a BIND_EXPR.
3548         (gimplify_expr): Handle OMP_RETURN_EXPR.
3549         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
3550         (OMP_PARALLEL): Add 3 operands.
3551         (OMP_SECTIONS): Add 1 operand.
3552         (OMP_RETURN_EXPR): Define.
3553
3554         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
3555         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
3556         * tree-iterator.c (alloc_stmt_list): Assert that we are not
3557         creating a circular free list.
3558         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
3559
3560         * tree-flow.h (move_sese_region_to_fn): Declare.
3561         (record_vars_into): Declare.
3562         * tree-cfg.c (make_omp_sections_edges): New.
3563         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
3564         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
3565         OMP_SECTIONS and OMP_SECTION.
3566         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
3567         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
3568         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
3569         (gather_blocks_in_sese_region): New.
3570         (struct move_stmt_d): Declare.
3571         (move_stmt_r): New.
3572         (move_block_to_fn): New.
3573         (move_sese_region_to_fn): New.
3574
3575         * passes.c (init_optimization_passes): Schedule
3576         pass_expand_omp after pass_init_datastructures.
3577
3578         * tree-ssa-operands.c (get_expr_operands): Handle
3579         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
3580         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
3581
3582 2006-01-19  Jeff Law  <law@redhat.com>
3583
3584         * tree-vrp.c (extract_range_from_assert): Refine the result range
3585         if the variable referenced by the ASSERT_EXPR has a range and
3586         either the tentative result range or the previous range is a
3587         VR_ANTI_RANGE.
3588
3589 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3590
3591         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
3592
3593 2006-01-19  Jan Hubicka  <jh@suse.cz>
3594
3595         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
3596
3597 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
3598
3599         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
3600         (expand_compound_operation, expand_field_assignment): Fail if the
3601         bit lengths of an extract operation are out of range.
3602         (make_extraction): Compute wanted_inner_mode based on the position
3603         and length of the extraction.  Make it extraction_mode for non-constant
3604         positions, and do not modify offset in that case.  When generating a
3605         new MEM, use a mode that can hold the extraction while keeping correct
3606         alignment.  Remove code that supported MEMs wrapped by USEs.
3607         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
3608
3609 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
3610
3611         * config/s390/s390.md ("Y", "y"): New mode attribute.
3612         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
3613         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
3614         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
3615         "*addsi3_imm_cc", "*addsi3_carry1_cc",
3616         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
3617         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
3618         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
3619         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
3620         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
3621         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
3622         "addsi3", "subsi3"): Insn patterns removed.
3623         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
3624         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
3625         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
3626         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
3627         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
3628         "*sub<mode>3_cconly2"): New insn patterns.
3629         ("addsi3", "subsi3"): New expanders.
3630
3631 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
3632
3633         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
3634         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
3635         existing STMT_VINFO_VECTYPE if available.
3636         (vect_mark_relevant): Add special handling for stmts that are
3637         marked as STMT_VINFO_IN_PATTERN_P.
3638         (vect_analyze_loop): Call vect_pattern_recog.
3639         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
3640         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
3641         stmt_info.
3642         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
3643         (vect_recog_func_ptr): New function-pointer type.
3644         * tree-vect-patterns.c: New file.
3645         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
3646         (vect_recog_dot_prod_pattern, vect_pattern_recog):
3647         (vect_pattern_recog_1): New functions.
3648         (vect_pattern_recog_funcs): New array of function pointers.
3649
3650         * tree-vectorizer.h (ternary_op): New enum value.
3651         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
3652         declaration. Revised documentation. Removed redundant dump prints.
3653         Removed redundant argument. Added support for reduction patterns.
3654         (vectorizable_reduction): Added support for reduction patterns.
3655         (vect_transform_stmt): Added support for patterns.
3656
3657         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
3658         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
3659         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
3660         (expand_widen_pattern_expr): New function.
3661         (init_optabs): Initialize new optabs udot_prod_optab,
3662         sdot_prod_optab.
3663         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
3664         (sdot_prod_optab, udot_prod_optab): Define new optabs.
3665         (expand_widen_pattern_expr): New function declaration.
3666         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
3667         tree-codes.
3668         * tree-inline.c (estimate_num_insns_1): Added cases for new
3669         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3670         * tree-pretty-print.c (dump_generic_node): Likewise.
3671         (op_prio): Likewise.
3672         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3673         * tree-ssa-operands.c (get_expr_operands): Added case for
3674         DOT_PROD_EXPR.
3675         * tree-vect-patterns.c (widened_name_p): New function.
3676         (vect_recog_dot_prod_pattern): Added function implementation.
3677         * tree-vect-transform.c (get_initial_def_for_reduction): Added
3678         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
3679         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
3680         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
3681
3682         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
3683         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
3684         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
3685         (init_optabs): Initialize new optabs widen_ssum_optab,
3686         widen_usum_optab.
3687         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
3688         (widen_ssum_optab, widen_usum_optab): Define new optabs.
3689         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
3690         use instead of type of def.
3691         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
3692         function implementation.
3693         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
3694         widen_ssumv8hi): New.
3695
3696         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
3697         patterns.
3698
3699 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3700
3701         PR c/25805
3702         * c-decl.c (add_flexible_array_elts_to_size): New function.
3703         (finish_decl): Use it.
3704
3705 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
3706
3707         * diagnostic.h: Include options.h.
3708         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
3709         dependancies for diagnostic.h.
3710         * Makefile.in (DIAGNOSTIC_H): Add options.h.
3711
3712 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
3713
3714         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
3715         (ssa_ro_call_cache_valid): Ditto.
3716         * tree-ssa-alias.c (sort_tags_by_id): New function.
3717         (init_transitive_clobber_worklist): Ditto.
3718         (add_to_worklist): Ditto.
3719         (mark_aliases_call_clobbered): Ditto.
3720         (compute_tag_properties): Ditto.
3721         (set_initial_properties): Ditto.
3722         (compute_call_clobbered): Ditto.
3723         (compute_may_aliases):  Call compute_call_clobbered and grouping.
3724         (compute_flow_sensitive_aliasing): Remove clobbering related code.
3725         (compute_flow_insensitive_aliasing): Grouping now happens in our
3726         caller.
3727         (setup_pointers_and_addressables): Remove clobbering related code.
3728         (add_may_alias): Ditto.
3729         (replace_may_alias): Ditto.
3730         (get_nmt_for): Ditto.
3731         (create_global_var):
3732         (is_escape_site): Return an escape_type enumeration.
3733         * tree-flow-inline.h (is_call_clobbered):  Global var does not
3734         imply call clobbered.
3735         (mark_call_clobbered): Take a reason for marking this. Remove
3736         marking of globalness, and cache invalidation.
3737         (clear_call_clobbered): Remove cache invalidation code.
3738         * tree-dfa.c (dump_variable): If details is on, dump the reason
3739         for escaping.
3740         * tree-outof-ssa.c (create_temp): Copy escape mask from original
3741         variable.
3742         * tree-flow.h (struct ptr_info_def): Add escape mask member.
3743         (struct var_ann_d): Ditto.
3744         (enum escape_type): New.
3745         (mark_call_clobbered): Adjust prototype.
3746         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
3747         are never call clobbered.
3748         Record reasons for escaping.
3749         * tree-ssa-structalias.h (is_escape_site): Update prototype.
3750         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
3751         (ssa_ro_call_cache_valid): Ditto.
3752         (clobbered_v_may_defs): Ditto.
3753         (clobbered_vuses): Ditto.
3754         (ro_call_vuses): Ditto.
3755         (clobber_stats): New.
3756         (init_ssa_operands): Zero out clobber stats.
3757         (fini_ssa_operands): Print out clobber stats.
3758         (get_call_expr_operands): Pass callee fndecl to
3759         add_call_read_ops).
3760         (add_call_clobber_ops): Remove use of cache.
3761         Add use of PURE_CONST information.
3762         (add_call_read_ops): Remove use of cache.
3763         Add use of static not_read information.
3764
3765 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
3766
3767         Introduce TLS descriptors for i386 and x86_64.
3768         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
3769         (TARGET_ANY_GNU_TLS): New macro.
3770         (enum tls_dialect): Added TLS_DIALECT_GNU2.
3771         (struct machine_function): Add tls_descriptor_call_expanded_p.
3772         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
3773         (ix86_current_function_calls_tls_descriptor): Likewise.
3774         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
3775         (override_options): Introduce gnu2 tls dialect.
3776         (ix86_frame_pointer_required): Functions containing TLSCALLs are
3777         not leaves.
3778         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
3779         Likewise.
3780         (legitimize_tls_address): Adjust logic for GNU2 TLS.
3781         (ix86_init_machine_status): Initialize new field.
3782         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
3783         (ix86_tls_module_base): New.
3784         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
3785         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
3786         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
3787         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
3788         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
3789         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
3790         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
3791         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
3792         * config/i386/predicates.md (tls_modbase_operand): New.
3793         (tp_or_register_operand): New.
3794
3795 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
3796
3797         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
3798         (look_for_address_of): Ditto.
3799         (ipa_init): Walk the function decls.
3800         (static_execute): Don't set readonly on FUNCTION_DECL's.
3801
3802 2006-01-18  Roger Sayle  <roger@eyesopen.com>
3803
3804         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
3805         for shifts where the source and destination registers are different.
3806
3807 2006-01-18  Paul Brook  <paul@codesourcery.com>
3808
3809         Merge from csl-arm-branch.
3810         2005-03-14  Julian Brown  <julian@codesourcery.com>
3811         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
3812         (aeabi_llsl): Likewise.
3813         (ashrdi3): Likewise.
3814         (aeabi_lasr): Likewise.
3815         (lshrdi3): Likewise.
3816         (aeabi_llsr): Likewise.
3817         2005-03-10  Julian Brown  <julian@codesourcery.com>
3818         * config.gcc: Disable shared libgcc for SymbianOS.
3819         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
3820
3821 2006-01-18  DJ Delorie  <dj@redhat.com>
3822
3823         * c-pragma.c (handle_pragma_diagnostic): New.
3824         (init_pragma): Register it.
3825         * doc/extend.texi: Document it.
3826
3827         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
3828         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
3829         (diagnostic_context): Add classify_diagnostic[].
3830         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
3831         as errors if they're overridden to DK_WARNING.
3832         (diagnostic_initialize): Initialize classify_diagnostic[].
3833         (diagnostic_set_kind_override): New.
3834         (diagnostic_report_diagnostic): Check for kind changes.
3835         * opts.c (common_handle_option): Take lang_mask.  Update callers.
3836         Handle OPT_Werror_.
3837         * common.opt (Werror=): New.
3838         * doc/invoke.texi: Document -Werror=*
3839
3840 2006-01-18  Jeff Law  <law@redhat.com>
3841
3842         * tree-vrp.c (test_for_singularity): Correct test for new
3843         min limit.  Use operand_equal_p rather than pointer equality
3844         for testing if new min/max values are equal.
3845
3846         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3847         using range information until after propagation and folding.
3848
3849 2006-01-18  Richard Henderson  <rth@redhat.com>
3850             Aldy Hernandez  <aldyh@redhat.com>
3851             Jakub Jelinek  <jakub@redhat.com>
3852             Diego Novillo  <dnovillo@redhat.com>
3853
3854         * omp-low.c: New file.
3855         * c-omp.c: New file.
3856
3857 2006-01-18  Richard Henderson  <rth@redhat.com>
3858             Jakub Jelinek  <jakub@redhat.com>
3859             Diego Novillo  <dnovillo@redhat.com>
3860
3861         * doc/invoke.texi: Document -fopenmp.
3862         * tree-dump.h (debug_function): Declare.
3863         * hooks.c (hook_bool_tree_bool_false): New function.
3864         (hook_tree_tree_null): Remove.
3865         (hook_tree_tree_tree_null): New.
3866         * hooks.h: Update to match.
3867         * tree-pretty-print.c (debug_tree_chain): New.
3868         (print_generic_expr): Handle TDF_CHAIN.
3869         (dump_generic_node): Handle BLOCK.
3870         Do not abort with incomplete SWITCH_EXPRs.
3871         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3872         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3873         print space after directive name.
3874         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3875         Handle OMP_MASTER and OMP_ORDERED.
3876         Handle printing of OMP_BODY just in one place, goto
3877         dump_omp_body in the rest of OMP_* nodes that have
3878         OMP_BODY.
3879         Don't handle clause nodes here.  Update omp statements to
3880         use dump_omp_clauses.
3881         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3882         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3883         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3884         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3885         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3886         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3887         Adjust output for GOMP_PARALLEL.
3888         (dump_omp_clauses): New.
3889         (print_declaration): Dump DECL_VALUE_EXPR.
3890         (op_symbol_1): Split out of op_symbol.
3891         (dumping_stmts): Remove.  Update all users.
3892         * cgraph.c (cgraph_analyze_queue): New.
3893         (cgraph_add_new_function): New.
3894         * cgraph.h (cgraph_analyze_queue): Declare.
3895         (cgraph_add_new_function): Declare.
3896         (cgraph_lower_function): Remove.
3897         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3898         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3899         and TYPE_P nodes in its default clause.
3900         (empty_body_p): New.
3901         (tree_range_check_failed): New.
3902         (build5_stat): New.
3903         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3904         OMP_CLAUSE_REDUCTION_MERGE,
3905         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3906         OMP_CLAUSE_PRIVATE_DEBUG,
3907         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3908         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3909         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3910         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3911         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3912         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3913         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3914         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3915         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3916         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3917         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3918         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3919         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3920         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3921         (TREE_RANGE_CHECK): New.
3922         (empty_body_p): Declare.
3923         (enum omp_clause_default_kind): New.
3924         (build_string_literal): Declare.
3925         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3926         (build5_stat, build5): Declare.
3927         * tree-pass.h (TDF_CHAIN): Define.
3928         * tree-pass.h (PROP_gimple_lomp): Define.
3929         (pass_lower_omp): Declare.
3930         * diagnostic.h (debug_tree_chain): Declare.
3931         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3932         mode_for_size.
3933         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3934         * builtins.c (build_string_literal): Make extern.
3935         * gcc.c (include_spec_function): New.
3936         (static_spec_functions): Add it.
3937         (main): Move load of libgomp.spec ...
3938         (LINK_COMMAND_SPEC): ... here.
3939         (link_gomp_spec): New.
3940         (static_specs): Include it.
3941         (LINK_COMMAND_SPEC): Add link_gomp.
3942         (GOMP_SELF_SPECS): New.
3943         (driver_self_specs): Include it.
3944         (switch_matches): Don't mark inline.
3945         (main): Load libgomp.spec.
3946         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
3947         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
3948         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
3949         * tree-gimple.h (enum omp_parallel): Declare.
3950         (determine_parallel_type): Declare.
3951         (omp_firstprivatize_variable): Declare.
3952         (omp_reduction_init): Declare.
3953         (diagnose_omp_structured_block_errors): Declare.
3954         (struct walk_stmt_info): Add want_return_expr.
3955         (struct walk_stmt_info): Add want_bind_expr, want_locations.
3956         (find_omp_clause): Declare.