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1 2006-02-23  Roger Sayle  <roger@eyesopen.com>
2             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
3
4         * gthr-posix.h (__gthrw): Fix typo in comment.
5
6 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
7
8         * doc/cpp.texi (Character sets): Document that we do support
9         input files to be in any character set.
10
11 2006-02-23  Jeff Law  <law@redhat.com>
12
13         * tree.h (PHI_ARG_NONZERO): Remove.
14         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
15         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
16         node to the new node.
17
18         PR tree-optimization/26425
19         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
20         min/max, then assume its varying.
21
22 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
23
24         PR rtl-optimization/26316
25         * rtlanal.c (enum may_trap_p_flags): New.
26         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
27         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
28         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
29         (may_trap_after_code_motion_p): New function.
30         * loop-invariant.c (find_identical_invariants): Fix dump formating.
31         (find_invariant_insn): Use may_trap_after_code_motion_p.
32         * rtl.h (may_trap_after_code_motion_p): Declare.
33
34 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
35
36         * emit-rtl.c (immed_double_const): Cleanup.
37
38 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
39         
40         Fix PR tree-optimization/26376
41         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
42         remove assert.
43
44 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
45
46         PR middle-end/26412
47         * gimplify.c (omp_add_variable): Guard variable size decl test with
48         DECL_SIZE (decl) check.
49
50 2006-02-23  Richard Guenther  <rguenther@suse.de>
51
52         PR middle-end/26439
53         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
54         like aggregate types.
55
56 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
57
58         * configure.ac: Add --with{,out}-long-double-128 configure option.
59         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
60         * configure: Rebuilt.
61         * config.in: Rebuilt.
62         * doc/install.texi (Options specification): Document
63         --with-long-double-128.
64
65         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
66         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
67         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
68         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
69
70 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
71
72         * config/s390/s390.c (override_options): Handle
73         TARGET_DEFAULT_LONG_DOUBLE_128.
74
75         * config/alpha/alpha.c (override_options): Handle
76         TARGET_DEFAULT_LONG_DOUBLE_128.
77
78         * config/sparc/sparc.c (sparc_override_options): Handle
79         TARGET_DEFAULT_LONG_DOUBLE_128.
80
81 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
82
83         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
84         (real-install-headers-tar, real-install-headers-cpio)
85         (real-install-headers-cp): New targets.
86
87 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
88
89         * tree.h (variable_section): Delete.
90         * varasm.c (variable_section): Delete.
91
92 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
93
94         * install.texi: Add notes on install.texi2html.
95         (Building in parallel): Do not use footnotes.
96
97 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
98
99         PR libgomp/26234
100         * doc/install.texi (Configuration): Document --disable-libgomp.
101
102 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
103
104         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
105
106 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
107
108         * config/i386/sse.md (vec_extractv2df_1_sse): New.
109         (vec_extractv2df_0_sse): New.
110
111 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
112
113         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
114         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
115         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
116         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
117         to the result of the expression.
118         (def_cfa_1): Adjust.
119         (frame_pointer_cfa_offset): Rename to...
120         (frame_pointer_fb_offset): ... this.  Adjust all uses.
121         (convert_cfa_to_loc_list): Rename to...
122         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
123         Pass it on to build_cfa_loc.
124         (compute_frame_pointer_to_cfa_displacement): Rename to...
125         (compute_frame_pointer_to_fb_displacement): ... this.  New
126         offset parameter.  Use it in computation.
127         (gen_subprogram_die): Compute cfa_fb_offset with the new
128         macro, and use it to compute the fb loc list and the
129         displacement.
130
131 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
132
133         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
134         replaced with register_operand.
135         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
136         non-DREG is expensive.
137         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
138         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
139         involving memory.
140
141 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
142
143         * doc/install.texi2html: Use set -e.
144
145 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
146
147         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
148         (ASM_OUTPUT_SHARED_LOCAL): Delete.
149         * doc/invoke.texi (-fshared-data): Delete.
150         * common.opt (fshared-data): Delete.
151         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
152         (assemble_static_space): Remove #if 0 code.
153         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
154         (ASM_OUTPUT_SHARED_LOCAL): Poison.
155         * config/cris/cris.h: Remove FIXME.
156
157 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
158
159         * doc/sourcebuild.texi (Front End Directory): No more double-colon
160         hooks.
161
162 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
163
164         PR middle-end/26379
165         * combine.c (simplify_shift_const_1): Disable nested shifts
166         optimization for vector shifts.
167
168 2006-02-20  Roger Sayle  <roger@eyesopen.com>
169
170         PR tree-optimization/26361
171         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
172         of unsigned integer types.
173
174 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
175
176         * tree-chrec.c (eq_evolutions_p): New.
177         * tree-chrec.h (eq_evolutions_p): Declared.
178         * tree-data-ref.c: Fix formatting.
179         (datadep_stats, dependence_stats): New.
180         (gcd): Moved...
181         (print_direction_vector): New.
182         (dump_data_dependence_relation): Use print_direction_vector.
183         (object_analysis, create_data_ref): Handle COMPONENT_REF.
184         (compute_subscript_distance): Static.
185         (initialize_data_dependence_relation): Static.  Get the number
186         of loops surrounding the references from the callers, and initialize
187         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
188         base_object_differ_p analyzers.
189         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine, 
190         compute_overlap_steps_for_affine_1_2,
191         analyze_subscript_affine_affine): Count the classified dependences.
192         Print a message when a test failed.
193         (can_use_analyze_subscript_affine_affine): New. 
194         (analyze_siv_subscript): Compute the data dependences on symbolic
195         scevs that verify can_use_analyze_subscript_affine_affine.
196         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
197         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
198         Handle symbolic scevs.
199         (analyze_overlapping_iterations): Let symbolic affine scevs to be
200         analyzed.
201         (subscript_dependence_tester): Moved...
202         (build_classic_dist_vector, build_classic_dir_vector): Don't use 
203         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
204         DDR_SIZE_VECT instead of getting it in parameter.
205         (subscript_dependence_tester): ... here.  Take as a parameter 
206         loop_nest_depth.  Call build_classic_dist_vector and
207         build_classic_dir_vector.
208         (compute_affine_dependence): Update subscript_dependence_tester 
209         parameters.  Update datadep_stats counters.  Call 
210         compute_subscript_distance.
211         (compute_self_dependence): Save the dist and dir vectors.  Call 
212         compute_subscript_distance.
213         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
214         (compute_all_dependences): Reorder parameters as they were before
215         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
216         compute_subscript_distance.  Update the use of 
217         compute_affine_dependence and initialize_data_dependence_relation.
218         (find_data_references_in_loop): Handle COMPONENT_REF.
219         (compute_data_dependences_for_loop): Initialize dependence_stats.
220         Don't call build_classic_dist_vector and build_classic_dir_vector.
221         Update the parameters of initialize_data_dependence_relation and 
222         compute_all_dependences.  Print the statistics from datadep_stats.
223         (analyze_all_data_dependences): Static.  Not used until the pass for
224         checking the data dependences is contributed.
225         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
226         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
227         (initialize_data_dependence_relation, compute_affine_dependence, 
228         analyze_all_data_dependences, compute_subscript_distance): Removed.
229         (print_direction_vector): New.
230         * lambda.h (gcd): ... here.
231         (lambda_vector_gcd): Moved here from gcd_vector.
232         * lambda-code.c (gcd, gcd_vector): Removed.
233         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
234         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
235
236 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
237
238         * ipa-type-escape.c: Tidy some comments and white space.
239         * tree-ssa-operands.c: Likewise.
240
241 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
242
243         PR tree-opt/25879
244         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
245         (dump_decl_name): Do not walk the decl tree chains.
246         * tree-pass.h (TDF_CHAIN): Remove.
247
248 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
249
250         * Makefile.in (C): Remove
251         (PROTO): Remove
252         (.PHONY): Remove C and PROTO
253
254 2006-02-20  Roger Sayle  <roger@eyesopen.com>
255
256         PR middle-end/26236
257         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
258         deprecated CHAR_TYPE tree code.
259
260 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
261
262         * configure.ac (target_list): Add install-info, dvi, html.
263         * configure: Regenerate.
264
265         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
266         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
267         treelang/Make-lang.in: Do not use double-colon rules.
268
269 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
270
271         * tree.h (struct tree_memory_tag): Add is_used_alone member.
272         (TMT_USED_ALONE): New macro.
273         * tree-pass.h (PROP_tmt_usage): New property.
274         (TODO_update_tmt_usage): New todo.
275         * tree-ssa-alias.c (updating_used_alone): New variable.
276         (recalculate_used_alone): New function.   
277         (compute_may_aliases): Set updating_used_alone, call
278         recalculate_used_alone. 
279         * tree-sra.c (pass_sra): Note that this pass destroys
280         PROP_tmt_usage, and add TODO_update_tmt_usage.
281         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
282         * tree-flow.h (updating_used_alone): Prototype.
283         (recalculate_used_alone): Ditto.
284         * passes.c (execute_todo): Add code to set updating_used_alone,
285         and call recalculate.
286         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
287         for clobber if used alone, and add assert to verify used_alone
288         status.
289         
290 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
291
292         * config/s390/s390.c (legitimize_pic_address): Assertions checking
293         for non tls symbols added.
294         (legitimize_address): Do nothing for PLUS expressions if one of the
295         addends is a tls symbol reference.
296
297 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
298
299         PR bootstrap/25476
300
301         * Makefile.in (LDFLAGS): Define from autoconf substitution.
302
303         * Makefile.in (BOOTSTRAPPING): New.
304         (quickstrap): New definition if BOOTSTRAPPING=yes.
305
306         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
307         * configure.ac: Substitute all_selected_languages with the languages
308         that were configured.  For all the other variables except
309         lang_specs_files, include all the languages in the tree.
310         * configure: Regenerate.
311         
312         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
313         if there is one.  Run the commands to run fixincludes in the same
314         subshell.
315
316         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
317         * doc/install.texi: Document exact conventions for searching target tools.
318         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
319         something more about building an Ada cross-compiler.  Don't list GNU Make
320         requirements which affect all platforms.
321
322 2006-02-19  Roger Sayle  <roger@eyesopen.com>
323
324         PR middle-end/19543
325         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
326         only equivalent if the have both the same mode and precision.
327
328 2006-02-20  Ben Elliston  <bje@au.ibm.com>
329
330         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
331
332 2006-02-19  Roger Sayle  <roger@eyesopen.com>
333             Steven Bosscher  <stevenb.gcc@gmail.com>
334
335         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
336         constant pool references to identify stack mode constants.
337         * rtlanal.c (constant_pool_constant_p): New predicate to check
338         whether operand is a floating point constant in the pool.
339         * rtl.h (constant_pool_constant_p): Prototype here.
340         * loop.c (scan_loop): Avoid hoisting constants from the constant
341         pool on STACK_REGS targets.
342         (load_mems): Likewise.
343         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
344         loads into x87 registers expensive in terms of register pressure.
345
346 2006-02-19  Roger Sayle  <roger@eyesopen.com>
347
348         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
349         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
350
351 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
352
353         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
354         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
355
356 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
357
358         * doc/invoke.texi: Document -fipa-pta.
359         * common.opt: Add ipa-pta option.
360         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
361         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
362         (do_ds_constraint): Ditto.
363         (get_constraint_for): Only add to referenced_vars if
364         referenced_vars exists.
365         (insert_into_field_list): Rewrite to do this unsorted.
366         (insert_into_field_list_sorted): Rename old insert_into_field_list
367         to this.
368         (create_function_info_for): Use insert_into_field_list_sorted.
369         (create_variable_info_for): Rewrite so it uses unsorted version,
370         since the field list is sorted.
371         (intra_create_variable_infos): Only add to referenced_vars if
372         referenced_vars exists.
373         (ipa_pta_execute): Init heapvars, and delete when done.
374         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
375
376 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
377
378         * doc/install.texi: Add missing `@samp'.
379
380 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
381
382         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
383         Use the arguments.
384
385 2006-02-18  Mark Wielaard  <mark@klomp.org>
386
387         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
388         who added new 4.1 features, bug fixes and integration support.
389
390 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
391
392         PR target/26350
393         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
394         MEM for ABI_V4 pic.
395
396 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
397
398         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
399         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
400         (copy_insn_1): Likewise.  Don't copy each field individually.
401         Reindent.
402         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
403         of RTX_SIZE.
404         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
405         * rtl.c (rtx_size): Rename variable to...
406         (rtx_code_size): ...this.
407         (rtx_size): New function.
408         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
409         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
410         Reindent.
411         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
412         * rtl.h (rtx_code_size): New variable.
413         (rtx_size): Change from a variable to a function.
414         (RTX_SIZE): Rename to...
415         (RTX_CODE_SIZE): ...this.
416
417         PR target/9703
418         PR tree-optimization/17106
419         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
420         (Anchored Addresses): New section.
421         * doc/invoke.texi (-fsection-anchors): Document.
422         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
423         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
424         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
425         * hooks.c (hook_bool_mode_rtx_false): New function.
426         * hooks.h (hook_bool_mode_rtx_false): Declare.
427         * gengtype.c (create_optional_field): New function.
428         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
429         SYMBOL_REF_IN_BLOCK_P is true.
430         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
431         (min_anchor_offset, max_anchor_offset): Likewise.
432         (use_anchors_for_symbol_p): New hook.
433         * toplev.c (compile_file): Call output_object_blocks.
434         (target_supports_section_anchors_p): New function.
435         (process_options): Check that -fsection-anchors is only used on
436         targets that support it and when -funit-at-a-time is in effect.
437         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
438         if the decl doesn't have one.
439         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
440         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
441         of force_const_mem through use_anchored_address.
442         (expand_expr_constant): New function.
443         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
444         calling expand_expr for INDIRECT_REF.
445         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
446         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
447         * expr.h (use_anchored_address): Declare.
448         * loop-unroll.c: Don't declare rtx vectors here.
449         * explow.c: Include output.h.
450         (validize_mem): Call use_anchored_address.
451         (use_anchored_address): New function.
452         * common.opt (-fsection-anchors): New switch.
453         * varasm.c (object_block_htab, anchor_labelno): New variables.
454         (hash_section, object_block_entry_eq, object_block_entry_hash)
455         (use_object_blocks_p, get_block_for_section, create_block_symbol)
456         (use_blocks_for_decl_p, change_symbol_section): New functions.
457         (get_variable_section): New function, split out from assemble_variable.
458         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
459         use_blocks_for_decl_p say so.  Use change_symbol_section if the
460         symbol has already been created.
461         (assemble_variable_contents): New function, split out from...
462         (assemble_variable): ...here.  Don't output any code for
463         block symbols; just pass them to place_block_symbol.
464         Use get_variable_section and assemble_variable_contents.
465         (get_constant_alignment, get_constant_section, get_constant_size): New
466         functions, split from output_constant_def_contents.
467         (build_constant_desc): Create a block symbol if use_object_blocks_p
468         says so.  Or into SYMBOL_REF_FLAGS.
469         (assemble_constant_contents): New function, split from...
470         (output_constant_def_contents): ...here.  Don't output any code
471         for block symbols; just pass them to place_section_symbol.
472         Use get_constant_section and get_constant_alignment.
473         (force_const_mem): Create a block symbol if use_object_blocks_p and
474         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
475         (output_constant_pool_1): Add an explicit alignment argument.
476         Don't switch sections here.
477         (output_constant_pool): Adjust call to output_constant_pool_1.
478         Switch sections here instead.  Don't output anything for block symbols;
479         just pass them to place_block_symbol.
480         (init_varasm_once): Initialize object_block_htab.
481         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
482         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
483         (place_block_symbol, get_section_anchor, output_object_block)
484         (output_object_block_htab, output_object_blocks): New functions.
485         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
486         (TARGET_ASM_OUT): Include it.
487         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
488         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
489         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
490         (TARGET_INITIALIZER): Include them.
491         * rtl.c (rtl_check_failed_block_symbol): New function.
492         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
493         (block_symbol, object_block): New structures.
494         (rtx_def): Add a block_symbol field to the union.
495         (BLOCK_SYMBOL_CHECK): New macro.
496         (rtl_check_failed_block_symbol): Declare.
497         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
498         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
499         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
500         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
501         * output.h (output_section_symbols): Declare.
502         (object_block): Name structure.
503         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
504         (default_use_anchors_for_symbol_p): Declare.
505         * Makefile.in (RTL_BASE_H): Add vec.h.
506         (explow.o): Depend on output.h.
507         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
508         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
509         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
510         (rs6000_use_blocks_for_constant_p): New function.
511
512 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
513
514         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
515
516 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
517
518         PR tree-opt/25680
519         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
520         IMAGPART_EXPR.
521
522 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
523
524         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
525         is_aliased.
526         Update all users.
527
528 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
529
530         PR middle-end/26334
531         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
532         instead of DECL_REGISTER.
533
534 2006-02-18  Olivier Hainque  <hainque@adacore.com>
535
536         PR ada/13408
537         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
538
539 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
540
541         PR target/24837
542         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
543         * opth-gen.awk: Handle Var and InverseMask together.
544         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
545         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
546         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
547         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
548         used together.
549         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
550         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
551         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
552         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
553         LINUX_DYNAMIC_LINKER): Define.
554         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
555         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
556         TARGET_GLIBC.
557         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
558         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
559         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
560         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
561         (TARGET_C99_FUNCTIONS): Don't define.
562         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
563         GLIBC_DYNAMIC_LINKER.
564         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
565         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
566         GLIBC_DYNAMIC_LINKER64): Define.
567         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
568         LINUX_DYNAMIC_LINKER64.
569         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
570         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
571         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
572         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
573         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
574         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
575         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
576         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
577         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
578         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
579         and LINUX_DYNAMIC_LINKER32.
580         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
581         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
582         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
583         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
584         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
585         TARGET_GLIBC.
586         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
587         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
588         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
589         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
590         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
591         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
592         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
593         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
594         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
595         LINUX_DYNAMIC_LINKER): Define.
596         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
597         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
598         GLIBC_DYNAMIC_LINKER64): Define.
599         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
600         LINUX_DYNAMIC_LINKER64.
601         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
602         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
603         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
604         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
605         LINUX_DYNAMIC_LINKER): Define.
606         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
607         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
608         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
609         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
610         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
611         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
612         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
613         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
614         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
615         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
616         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
617         * doc/invoke.texi (-muclibc): Remove caveat about supported
618         targets.
619
620 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
621
622         * doc/cpp.texi (__TIMESTAMP__): Document.
623
624 2006-02-17  Roger Sayle  <roger@eyesopen.com>
625
626         PR middle-end/25600
627         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
628         C is one less than the width of X (and related transformations).
629         * simplify_rtx.c (simplify_unary_operation_1): Transform 
630         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
631         depending on STORE_FLAG_VALUE, were C is one less then the
632         width of X.
633
634 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
635
636         Fix PR tree-optimization/26341
637         * tree-ssa-operands.c (add_virtual_operand): Remove assert 
638         about NAME_MEMORY_TAG's.
639
640 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
641
642         PR target/26255
643         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
644         with hardware float support, and software float support.  Add fcpy
645         alternative to hardware patterns.  Add alternatives to copy between
646         general and floating-point registers to the 32-bit pattern.
647         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
648         secondary reload to load a QI or HI mode constant into a floating
649         point register. 
650         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
651         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
652
653 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
654
655         PR target/26272
656         * config/rs6000/darwin.md (load_macho_picbase_si): Add
657         pc to the pattern.
658         (load_macho_picbase_di): Likewise.
659
660 2006-02-16  Jeff Law  <law@redhat.com>
661
662         * tree-vrp.c (set_value_range_to_nonnegative): New function.
663         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
664         (ssa_name_nonzero_p): Likewise.
665         (get_value_range): Return NULL if VRP is not running.
666         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
667         VRP routines do not discover a range.
668         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
669         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
670         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
671         (tree_expr_nonnegative_p): Similarly.
672         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
673         (restore_nonzero_vars_to_original_value): Remove.
674         (unsafe_associative_fp_binop): Remove.
675         (tree_ssa_dominator_optimize): Remove initialization and
676         finalization of nonzero_vars and nonzero_vars_stack.
677         (dom_opt_initialize_block): No longer push marker on
678         nonzero_vars_stack.
679         (dom_opt_finalize_block): No longer call
680         restore_nonzero_vars_to_original_value.
681         (record_equivalences_from_phis): No longer look for
682         nonzero PHI arguments.
683         (cprop_into_successor_phis): No longer propagate nonzero
684         property into PHI arguments.  Lose unused argument.  Caller
685         updated.
686         (record_equivalences_from_stmt): No longer record nonzero
687         values for SSA_NAMEs.
688         (lookup_avail_expr): No longer use nonzero_vars.
689
690         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
691         for sizetype when sizetype is unsigned.
692
693 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
694
695         PR rtl-optimization/25603
696         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
697         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
698         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p 
699         with new meaning of SETS.
700
701 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
702
703         PR target/20353
704         PR target/24578
705         PR target/24837
706         * config/linux.opt: New file.
707         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
708         LINUX_DYNAMIC_LINKER): Define.
709         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
710         * config.gcc (*-*-linux*): Define extra_options.
711         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
712         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
713         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
714         GLIBC_DYNAMIC_LINKER.
715         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
716         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
717         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
718         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
719         * doc/invoke.texi (GNU/Linux Options): New section.
720
721 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
722
723         * config/sparc/sparc.md (setjmp): Rewrite.
724         (setjmp_32): Delete.
725         (setjmp_64): Likewise.
726
727 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
728
729         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
730          previous change.
731
732 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
733
734         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
735         read-write uses.
736
737 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
738
739         PR rtl-optimization/26296
740         * Makefile.in (loop-invariant.c): Add except.h dependency.
741         * loop-invariant.c: Include except.h.
742         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
743
744 2005-02-16  Paul Brook  <paul@codesourcery.com>
745
746         * reload1.c (emit_reload_insns): Invalidate dead input registers used
747         for reloads.
748
749 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
750
751         PR rtl-optimization/25636
752         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
753         when deciding whether an insn is an initializing insn.
754
755 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
756
757         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
758         (tree_code_size): Ditto.
759         * tree.h (struct tree_memory_tag): Remove parent_var.
760         (struct tree_struct_field_tag): New.
761         (SFT_OFFSET): New.
762         (SFT_SIZE): New.
763         (union tree_node): Add sft member.
764         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
765         specially here.
766         (create_sft): Add size and offset argument, set SFT_OFFSET and
767         SFT_SIZE.
768         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
769         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
770         * tree-flow-inline.h (get_subvar_at): Update for
771         SFT_OFFSET/SFT_SIZE.
772         (var_can_have_subvars): Ditto.
773         (overlap_subvar): Ditto.
774         * print-tree.c (print_node): Print out interesting things for
775         SFT's.
776         * tree-flow.h (struct subvar): Remove offset and size members.
777         * tree-ssa-operands.c (get_expr_operands): Update for
778         get_indirect_ref_operands changes.
779         (get_indirect_ref_operands): Call add_virtual_operand instead of
780         add_stmt_operand.  Only recurse on base var if requested.
781         (access_can_touch_variable): New function.
782         (add_stmt_operand): Split virtual operand handling into ...
783         (add_virtual_operand): Here.  Add offset, size, and for_clobber
784         arguments.  Prune alias sets.
785         (add_call_clobber_ops): Call add_virtual_operand.
786         
787 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
788
789         PR middle-end/26300
790         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
791
792         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
793         than TREE_CODE as index into omp_clause_num_ops array.
794
795 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
796
797         PR rtl-optimization/26184
798         * modulo-sched.c (generate_reg_moves): Free bitmap vector
799         uses_of_defs.
800         * modulo-sched.c (sms_schedule): Free g_arr pointer.
801         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
802         must_precede, must_follow and tobe_scheduled.
803
804         PR other/26147
805         * opts.c (common_handle_option): Free new_option pointer.
806         * df-core.c (df_analyze): Free postorder pointer.
807
808 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
809
810         * Makefile.in: Fix the examples about the use of stamps
811
812 2006-02-15  Michael Matz  <matz@suse.de>
813
814         PR middle-end/22275
815
816         * stor-layout.c (layout_decl): Zero-width bitfields aren't
817         influenced by maximum_field_alignment or DECL_PACKED.
818         (update_alignment_for_field): Ditto.
819         (place_field): Ditto.
820         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
821         this behaviour.
822
823 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
824
825         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
826         (debug_flow_info): Pass it.
827         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
828         * bb-reorder.c (reorder_basic_blocks): Likewise.
829         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
830         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
831         * flow.c (life_analysis, recompute_reg_usage): Likewise.
832         * gcse.c (gcse_main, bypass_jumps): Likewise.
833         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
834         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
835         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
836         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
837         * rtl.h (dump_flow_info): Adjust prototype.
838         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
839         * var-tracking.c (variable_tracking_main): Likewise.
840         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
841         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
842         options.
843
844 2006-02-15  Marcin Dalecki <martin@dalecki.de>
845
846         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
847         construction.
848
849 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
850
851         PR tree-optimization/26209
852         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
853         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
854         eh edges.
855         * tree-cfg.c (replace_uses_by): Do not alter cfg.
856
857 2006-02-14  Roger Sayle  <roger@eyesopen.com>
858
859         PR middle-end/23670
860         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
861         (X,Y) and the corresponding symmetry related transformations.
862         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
863         (X,Y) and its symmetry related transformations.
864
865 2006-02-14  Roger Sayle  <roger@eyesopen.com>
866
867         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
868         and GEU.
869
870 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
871
872         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
873
874 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
875
876         PR bootstrap/26053
877         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
878         support COMDAT group.
879         * configure: Regenerate.
880
881 2006-02-14  Roger Sayle  <roger@eyesopen.com>
882
883         PR middle-end/26279
884         PR middle-end/26280
885         PR middle-end/26283
886         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
887
888 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
889
890         Fix PR tree-optimization/26260
891
892         * doc/invoke.texi (max-fields-for-field-sensitive): Document
893         param.
894         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
895         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
896         * tree-ssa-structalias.c (create_variable_info_for): Use
897         MAX_FIELDS_FOR_FIELD_SENSITIVE.
898         
899 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
900
901         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
902         Document.
903         * tree-ssa-loop-niter.c (number_of_iterations_ne,
904         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
905         of the ending condition.
906         * tree-ssa-loop-manip.c: Include params.h.
907         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
908         tree_unroll_loop): New functions.
909         * tree-pass.h (pass_loop_prefetch): Declare.
910         * loop.c (rest_of_handle_loop_optimize): Test for
911         -fprefetch-loop-arrays-rtl.
912         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
913         * timevar.def (TV_TREE_PREFETCH): New timevar.
914         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
915         pass_loop_prefetch): New.
916         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
917         (cleanup_tree_cfg_loop): Call scev_reset.
918         * common.opt (fprefetch-loop-arrays-rtl): Add.
919         * tree-ssa-loop-prefetch.c: New file.
920         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
921         (new_temp_expr_table): Initialize expr_vars.
922         (free_temp_expr_table): Cleanup expr_vars.
923         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
924         expressions from being merged into one.
925         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
926         (struct tree_niter_desc): Add control, bound and cmp fields.
927         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
928         Declare.
929         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
930         (tree-cfgcleanup.o): Add SCEV_H dependency.
931         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
932         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
933
934 2006-02-14  Richard Guenther  <rguenther@suse.de>
935
936         PR tree-optimization/26258
937         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
938         in PHI argument processing.
939
940 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
941
942         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
943         new expression in the requested machine mode.
944
945 2006-02-13  Roger Sayle  <roger@eyesopen.com>
946
947         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
948         directly, instead let do_compare_rtx_and_jump handle this for us.
949         * expr.c (expand_expr_real_1): Likewise.
950         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
951         before do_jump_by_parts_greater.
952         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
953         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
954
955 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
956
957         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
958
959 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
960
961         PR rtl-optimization/26235
962         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
963         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
964         format.
965
966 2006-02-13  Jeff Law  <law@redhat.com>
967
968         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
969         TRUTH_XOR_EPR.
970
971 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
972
973         PR middle-end/26092
974         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
975         twice if decl is a builtin.  When trying again, call get_callee_fndecl
976         first to verify it is still a builtin.
977
978 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
979
980         * dwarf2out.c (base_type_die): Don't add AT_name here.
981         (subrange_type_die): Don't add AT_name here.
982         (modified_type_die): Rearrange code flow.  Do add AT_name here.
983
984 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
985
986         PR rtl-optimization/26247
987         PR rtl-optimization/26248
988         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
989
990 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
991
992         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
993         * config/fixtfdi.c: Likewise.
994         * config/fixunstfdi.c: Likewise.
995         * config/floatditf.c: Likewise.
996
997 2006-02-13  Roger Sayle  <roger@eyesopen.com>
998
999         PR middle-end/24427
1000         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
1001         into (X,C2) if C1 is a subset of the bits of C2.  Transform
1002         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
1003         (X&(C1&~C2))|C2.
1004         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1005
1006 2006-02-13  Josh Conner  <jconner@apple.com>
1007
1008         PR target/25376
1009         * varasm.c (function_section): Check for section name before
1010         calling select_section on targets that define
1011         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1012         unlikely_text_section instead of hot_function_section if
1013         first_function_block_is_cold.
1014
1015 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1016
1017         PR middle-end/25335
1018         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1019
1020 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1021
1022         PR rtl-optimization/26222
1023         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1024         after tree->rtl expansion.
1025         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1026         before passing it to emit_move_insn.
1027
1028 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1029
1030         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1031         default. 
1032         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1033         Clarify documentation.
1034         * c-common.h (warn_write_strings): Remove.
1035         * c-common.c (warn_write_strings): Likewise.
1036         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1037         default for C++.
1038
1039 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1040
1041         PR middle-end/25724
1042         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1043         (do_jump_parts_zero_rtx): New function renamed from
1044         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1045         (do_jump_parts_equality_rtx): New function split out from
1046         do_jump_parts_equality.  Old implementation renamed as above.
1047         Call do_jump_parts_zero_rtx if either operand is zero.
1048         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1049         do all of the heavy lifting.
1050         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1051         calling either do_jump_by_parts_greater_rtx or
1052         do_jump_by_parts_equality_rtx.
1053         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1054         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1055         moved to do_compare_rtx_and_jump, call it directly.
1056         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1057         mode argument.  Call do_compare_rtx_and_jump.
1058         (emit_case_nodes): Update calls to do_jump_if_equal.
1059
1060 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1061
1062         PR rtl-optimization/26225
1063         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1064
1065 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1066
1067         PR rtl-optimization/26232
1068         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1069
1070 2006-02-11  Jason Merrill  <jason@redhat.com>
1071
1072         PR tree-opt/24365
1073         * tree-inline.c (declare_return_variable): Just don't use the
1074         modify target if it's a gimple complex reg and the return slot
1075         isn't.
1076
1077 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1078
1079         * doc/contrib.texi: Update my entry.
1080
1081 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1082
1083         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1084
1085 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1086
1087         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1088         expensive.
1089
1090 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1091
1092         * doc/invoke.texi (-floop-optimize2): Removed.
1093         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1094         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1095         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1096         * common.opt (floop-optimize2): Removed.
1097         (fmove-loop-invariants): Enabled by default.
1098
1099 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1100
1101         * tree-if-conv.c (combine_blocks): Free the result of
1102         get_loop_exit_edges.
1103
1104 2006-02-10  Jeff Law  <law@redhat.com>
1105
1106         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1107
1108         PR tree-optimization/26213
1109         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1110         loop trying to follow SSA_NAME_VALUE chains.
1111
1112 2006-02-10  Richard Guenther  <rguenther@suse.de>
1113
1114         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1115         deal with structures that end in implicitly variable sized arrays.
1116
1117 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1118
1119         PR rtl-optimization/24762
1120         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1121         eh edges.
1122
1123 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1124
1125         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1126         (struct ivopts_data): Add regs_used field.
1127         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1128         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1129         instead of loop_data->regs_used;
1130         (free_loop_data): Do not free aux fields for loops.
1131         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1132         and tree_ssa_iv_optimize_finalize.
1133
1134 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1135
1136         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1137
1138 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1139
1140         PR target/26141
1141         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1142         computing the effective result type.
1143
1144 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1145
1146         PR inline-asm/16194
1147         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1148         (tree_overlaps_hard_reg_set): Declare.
1149         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1150         type and signature to match function type expected by walk_tree.
1151         (tree_overlaps_hard_reg_set): New function.
1152         (decl_conflicts_with_clobbers_p): Rename to:
1153         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1154         Use tree_overlaps_hard_reg_set.  Changed caller.
1155         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1156         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1157         * cris.c (cris_md_asm_clobbers): Likewise.
1158
1159 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1160
1161         * reload1.c (emit_input_reload_insns): Delete code that tries to
1162         inherit using find_equiv_reg.
1163
1164 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1165
1166         * c-common.h (flag_const_strings): Don't declare.
1167         * c-common.c (flag_const_strings): Remove.
1168         * c.opt (fconst_strings): Remove.
1169         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
1170         <OPT_Wwrite_strings>: Don't set flag_const_strings.
1171         (c_common_init_options): Don't set flag_const_strings.
1172         * doc/invoke.texi (-fno-const-strings): Remove documentation.
1173
1174 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
1175
1176         * arm.md (tlobits_cbranch): New pattern.
1177         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
1178         testing a single bit.
1179
1180 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1181
1182         PR tree-opt/26179
1183         * tree-ssa-pre.c (create_component_ref_by_pieces):
1184         Handle RETURN_DECL like VAR_DECL.
1185
1186 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1187
1188         PR middle-end/26134
1189         * fold-const.c (fold_indirect_ref_1): Fold 
1190         "*(foo *)&complexfoo" to "__real__ complexfoo"
1191         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
1192
1193 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1194
1195         * tree-flow-inline.h (var_can_have_subvars): 
1196         Volatile variables should not have subvariables.
1197
1198 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
1199
1200         PR 26180
1201         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
1202         multiplying unsigned values.
1203         Tidy comments.
1204
1205 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
1206
1207         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
1208
1209 2006-02-08  Jason Merrill  <jason@redhat.com>
1210
1211         PR c++/25979
1212         * tree.def: Elaborate on difference from MODIFY_EXPR.
1213         * doc/c-tree.texi (INIT_EXPR): Likewise.
1214         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
1215         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
1216         (gimplify_target_expr): Likewise.
1217         (gimplify_cond_expr): Remove target handling.
1218         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
1219         (gimplify_expr): Clobber it here.
1220         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
1221         Do return slot optimization if we have an INIT_EXPR.
1222
1223         PR tree-opt/24365
1224         * tree-inline.c (declare_return_variable): Also clear 
1225         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
1226
1227         PR c++/16405
1228         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
1229
1230         PR middle-end/22439
1231         * gimplify.c (gimplify_one_sizepos): Fix typo.
1232
1233 2006-02-08  Jeff Law  <law@redhat.com>
1234
1235         PR tree-optimization/21417
1236         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
1237         across a backedge if the control statement at the end of the
1238         block is data dependent on other statements in the same block.
1239         (record_temporary_equivalences_from_stmts): Remove over-conservative
1240         test for threading across backedges.
1241
1242         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
1243         control statement, handle all three special cases in the same
1244         manner as they all have the same desired solution.  No longer
1245         special case edge flag updating when the post dominator is
1246         the exit block.
1247
1248 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1249
1250         * tree.def (CHAR_TYPE): Remove.
1251         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
1252         * dwarf2out.c (base_type_die, is_base_type): Likewise.
1253         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
1254         (gen_string_type_die): Delete unreachable function.
1255
1256         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
1257         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
1258         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
1259         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
1260         * builtins.c (type_to_class): Likewise.
1261         * fold-const.c (fold_convert, build_range_check,
1262         merge_ranges): Likewise.
1263         * expr.c (count_type_elements): Likewise.
1264         * c-pretty-print.c (pp_c_type_specifier): Likewise.
1265         * stor-layout.c (layout_type): Likewise.
1266         * ipa-type-escape.c (type_to_consider): Likewise.
1267         * gimplify.c (omp_firstprivatize_type_sizes,
1268         gimplify_type_sizes): Likewise.
1269         * explow.c (promote_mode): Likewise.
1270         * tree-sra.c (is_sra_scalar_type): Likewise.
1271         * varasm.c (output_constant): Likewise.
1272         * tree-inline.c (remap_type_1): Likewise.
1273         * convert.c (convert_to_pointer, convert_to_real,
1274         convert_to_integer, convert_to_complex): Likewise.
1275
1276 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
1277
1278         * df-scan.c (df_def_record_1): A set destination may
1279         be a parallel regardless of mode.
1280
1281 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1282
1283         PR target/22209
1284         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
1285         * config/mips/_tilib.c: Remove.
1286         * config/fixtfdi.c: New libgcc source file.
1287         * config/fixunstfdi.c: New source file.
1288         * config/floatditf.c: New source file.
1289         * config/floatunditf.c: New souce file.
1290         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
1291         files above instead of config/mips/_tilib.c.
1292         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
1293
1294 2006-02-08  Jeff Law  <law@redhat.com>
1295
1296         PR tree-optimization/26169
1297         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
1298         threading jumps.
1299
1300 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
1301
1302         * df.h (DF_REG_SIZE): Return the length of the initialized
1303         part of the array.
1304
1305 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
1306
1307         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
1308         __muldf3): Return a correctly signed zero.
1309
1310 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
1311
1312         * passes.c (register_one_dump_file): Accept the current properties
1313         instead of pass number.  Adjust call to dump_register.  Remove
1314         duplicated code.
1315         (register_dump_files): Now a wrapper around...
1316         (register_dump_files_1): ... this one.  Do not modify the pass
1317         structure.
1318         (next_pass_1): Cosmetic fix.
1319         (execute_todo): Keep second parameter only.  Use curr_properties
1320         instead of fetching it from the pass structure.  Check and set
1321         last_verified.
1322         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
1323         instead of fetching it from the pass structure.  Fix calls to
1324         execute_todo.  Update curr_properties and initialize .vcg RTL dump
1325         after running the pass.  Reset last_verified.
1326         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
1327         at the beginning.
1328         (FIRST_AUTO_NUMBERED_DUMP): New.
1329         (dump_register): Remove "num" parameter, assign it within the
1330         function.
1331         (get_dump_file_name): Modify template for dumps.
1332         * tree-dump.h (dump_register): Adjust prototype.
1333         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
1334         (PROP_trees): Add PROP_gimple_lomp.
1335         (TODO_set_props): New.
1336         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
1337         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
1338         * cfgexpand.c (pass_expand): Destroy PROP_trees.
1339
1340 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
1341
1342         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
1343         (sparc64-*-linux*): Likewise.
1344         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
1345         * config/sparc/t-linux: New file.
1346         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
1347         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
1348         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
1349         -m32 -mlong-double-128.
1350
1351         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
1352         * config/alpha/t-linux: New file.
1353         * config/alpha/libgcc-alpha-ldbl.ver: New file.
1354
1355         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
1356         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
1357         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
1358         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
1359         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
1360         (CPP_ARCH32_SPEC): Remove.
1361
1362 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
1363
1364         PR tree-optimization/26145
1365         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
1366         bbs pointer.
1367
1368 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1369
1370         PR target/26109
1371         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
1372         >= 240000 when generating code for SOM runtime.
1373         (output_indirect_call): Don't use "b,l" instruction for indirect calls
1374         to $$dyncall when generating code for SOM runtime..
1375
1376 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1377
1378         PR c++/18150
1379         * doc/invoke.texi (-Wsequence-point): Update documentation
1380         that -Wsequence-point is implemented for C++ as well.
1381
1382 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1383
1384         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
1385         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
1386         (LIB_SPEC): Likewise.
1387         * doc/invoke.texi (SPARC options): Document -pthread.
1388
1389 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
1390
1391         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
1392         PIC addresses.
1393
1394 2006-02-07  Roger Sayle  <roger@eyesopen.com>
1395
1396         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
1397         Correct comment describing BOOLEAN_TYPE.
1398
1399 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1400
1401         * c.opt: C++ frontend supports -Wdiv-by-zero.
1402         * c-opts.c (c_common_handle_option): Remove dead case.
1403
1404 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1405
1406         * configure.ac (TLS assembler check): Do not enable TLS by
1407         default on SPARC/Solaris before version 10.
1408         * configure: Regenerate.
1409
1410 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
1411
1412         * doc/invoke.texi (xl-compat): Document conversion and support
1413         routine names.
1414
1415 2006-02-07  Jeff Law  <law@redhat.com>
1416
1417         * tree-vrp.c (find_conditional_asserts): Update comments.
1418         (simplify_stmt_for_jump_threading): New.
1419         (identify_jump_threads, finalize_jump_threads): New.
1420         (vrp_finalize): Call identify_jump_threads.
1421         (execute_vrp): Call finalize_jump_threads.
1422         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
1423         (vrp_element, vrp_data, vrp_element_p): Remove.
1424         (vrp_hash_elt, vrp_variables_stack): Remove.
1425         (vrp_hash, vrp_eq, record_range): Remove.
1426         (simplify_cond_and_lookup_avail_expr): Remove.
1427         (extract_range_from_cond): Remove.
1428         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
1429         (simplify_stmt_for_jump_threading): New.
1430         (dom_thread_across_edge): New wrapper.
1431         (tree_ssa_dominator_optimize): No longer initialize or
1432         finalize any of the VRP datastructures.  Remove iteration
1433         step and simplify as a result of removal of iteration step.
1434         (pass_dominator): Perform a cfg cleanup after DOM.
1435         (dom_opt_finalize_block): Use the new common routines
1436         for threading jumps.  Simplify stack management slightly.
1437         No longer need to unwind VRP state.
1438         (record_equivalences_from_incoming_edge): No longer record
1439         VRP information.
1440         (eliminate_redundant_computations): No longer call
1441         simplify_cond_and_lookup_avail_expr.
1442         * tree-flow.h (potentially_threadable_block): Prototype.
1443         (thread_across_edge): Likewise.
1444         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
1445         (tree-ssa-threadedge.o): Add dependencies.
1446         * tree-ssa-threadedge.c: New file.
1447         * passes.c (init_optimization_passes): Merge PHIs before
1448         calling VRP.  Run VRP again late in the SSA optimization pipeline.
1449
1450 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1451
1452         * df-core.c (df_set_blocks): Do not dereference function pointers.
1453         (df_finish1): Likewise.
1454         (df_hybrid_search_forward): Likewise.
1455         (df_hybrid_search_backward): Likewise.
1456         (df_iterative_dataflow): Likewise.
1457         (df_analyze_problem): Likewise.
1458         (df_compact_blocks): Likewise.
1459         (df_dump): Likewise.
1460         * df-scan.c (df_rescan_blocks): Likewise.
1461         (df_record_entry_block_defs): Likewise.
1462
1463         * genconditions.c (write_conditions): Guard the definition of
1464         'insn_conditions' with the check on GCC version.
1465         (write_writer): Guard the traversal 'insn_conditions' with
1466         the check on GCC version.
1467
1468 2006-02-07  Richard Guenther  <rguenther@suse.de>
1469
1470         PR c++/26140
1471         Revert
1472         2006-01-30  Richard Guenther  <rguenther@suse.de>
1473         PR c++/23372
1474         * gimplify.c (gimplify_target_expr): Handle easy cases
1475         without creating a temporary.
1476
1477 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
1478
1479         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
1480         use of float in probability computations.  Use edge probabilities
1481         in place of statically computed probabilities.
1482         (min_spec_prob): New static variable.
1483         (schedule_insns): Initialize it.
1484         (GET_SRC_PROB): Removed.
1485         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
1486
1487 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
1488
1489         PR debug/24444
1490         * config/ia64/unwind-ia64.c: Revert last change.
1491         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
1492         (INCOMING_FRAME_SP_OFFSET): Define.
1493
1494 2006-02-06  Roger Sayle  <roger@eyesopen.com>
1495
1496         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
1497
1498 2006-02-07  Ben Elliston  <bje@au.ibm.com>
1499
1500         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
1501         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
1502         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
1503         (ix86_return_in_memory): Handle TDmode.
1504         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
1505         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
1506
1507 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
1508
1509         * reorg.c (dbr_schedule): Use dump_file instead of file.
1510
1511 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
1512
1513         PR target/25917
1514         * config/ia64/predicates.md (extr_len_operand): New predicate.
1515         * config/ia64/ia64.md (extv): Tighten constraints.
1516         (extzv): Ditto.
1517         (*tbit_and_2): Ditto.
1518         (*tbit_and_3): Ditto.
1519         (*tbit_or_2): Ditto.
1520         (*tbit_or_3): Ditto.
1521         (*bit_zero): Ditto.
1522         (*bit_one): Ditto.
1523
1524 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
1525
1526         PR target/23359
1527         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
1528
1529 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1530
1531         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
1532         loop_optimizer_init and loop_optimizer_finalize
1533         * tree-ssa-sink.c (execute_sink_code): Ditto.
1534         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1535         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
1536         tree_ssa_loop_done): Ditto.
1537         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
1538         * sched-ebb.c: Include output.h.
1539         (schedule_ebbs): Do not use dump argument.
1540         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
1541         * loop.c (loop_dump_stream): Removed.
1542         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
1543         argument.
1544         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
1545         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
1546         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
1547         loop_iterations, strength_reduce, record_biv, record_giv,
1548         final_giv_value, check_final_value, check_ext_dependent_givs,
1549         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
1550         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
1551         dump_file instead of loop_dump_stream.
1552         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
1553         argument dump_file.
1554         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
1555         dump argument.
1556         * flow.c (life_analysis, rest_of_handle_life): Ditto.
1557         * haifa-sched.c: Include output.h
1558         (schedule_insns, sched_init): Do not use dump argument.
1559         * mode-switching.c (optimize_mode_switching): Ditto.
1560         * modulo-sched.c (stats_file): Removed.
1561         (print_node_sched_params): Do not call argument dump_file.
1562         (sms_schedule_by_order, loop_canon_p, sms_schedule,
1563         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
1564         of stats_file.
1565         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
1566         use dump argument.
1567         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
1568         rtl_loop_init, rtl_loop_done): Ditto.
1569         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
1570         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
1571         Ditto.
1572         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
1573         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
1574         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
1575         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
1576         * emit-rtl.c (renumber_insns): Ditto.
1577         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
1578         expand_gimple_basic_block, tree_expand_cfg): Ditto.
1579         * regclass.c (regclass): Ditto.
1580         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
1581         remove_ssa_form, rewrite_out_of_ssa): Ditto.
1582         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
1583         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
1584         Ditto.
1585         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
1586         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
1587         to regclass.
1588         * gcse.c (gcse_file, debug_stderr): Removed.
1589         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
1590         rest_of_handle_gcse): Do not use dump argument.
1591         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
1592         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
1593         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
1594         compute_code_hoist_vbeinout, compute_code_hoist_data,
1595         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
1596         compute_store_table, build_store_vectors, insert_insn_start_bb,
1597         insert_store, remove_reachable_equiv_notes, replace_store_insn,
1598         store_motion): Use dump_file instead of gcse_file.
1599         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
1600         * profile.c (profile_dump_file): Removed.
1601         (branch_prob): Use dump_file instead of profile_dump_file.
1602         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
1603         dump_file.
1604         * tree-ssa-copy.c (dump_copy_of): Ditto.
1605         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
1606         dump file to life_analysis.
1607         * bt-load.c (branch_target_load_optimize): Ditto.
1608         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
1609         renumber_insns.
1610         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
1611         regclass, dbr_schedule): Declaration changed.
1612         * sched-int.h (sched_init): Declaration changed.
1613         * tree-profile.c (tree_profile_dump_file): Removed.
1614         (tree_profile_hooks): Removed profile_dump_file hook.
1615         * rtl-profile (rtl_profile_dump_file): Removed.
1616         (rtl_profile_hooks): emoved profile_dump_file hook.
1617         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
1618         changed.
1619         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
1620         * tree-cfg.c (build_tree_cfg): Ditto.
1621         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
1622         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
1623         Declaration changed.
1624         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
1625         life_analysis and schedule_insns.
1626         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
1627         life_analysis.
1628         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
1629         dbr_schedule.
1630         * config/mips/mips.c (mips_reorg): Ditto.
1631         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
1632         schedule_ebbs.
1633
1634 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
1635
1636         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1637         (s390_mangle_fundamental_type): New.
1638         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1639         Define.
1640
1641         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1642         (alpha_mangle_fundamental_type): New.
1643         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1644         Define.
1645
1646         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1647         Define.
1648         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1649         Define.
1650         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1651         (sparc_mangle_fundamental_type): New.
1652
1653 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
1654
1655         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
1656         (s390x-*-linux*): Likewise.
1657         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
1658         * config/s390/t-linux: New file.
1659
1660 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1661
1662         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
1663         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
1664
1665 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
1666
1667         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
1668         (ANTIC_SAFE_LOADS): New macro.
1669         (find_or_generate_expression): Add prototype.
1670         (set_contains_value): Allow null set for sake of not always having
1671         to allocate ANTIC_SAFE_LOADS.
1672         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
1673         Allow COMPONENT_REF too.
1674         (valid_in_set): Allow COMPONENT_REF.
1675         Check ANTIC_SAFE_LOADS too.
1676         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
1677         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
1678         rename.
1679         (can_PRE_operation): Add COMPONENT_REF.
1680         (create_component_ref_by_pieces): New function.
1681         (create_expression_by_pieces): Use create_component_ref_by_pieces.
1682         (insert_aux): Move AGGREGATE_TYPE_P check here.
1683         (compute_avail): Set bb local stmt uids.
1684         (pass_pre): Use TODO_update_ssa_only_virtuals.
1685         
1686 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1687
1688         * configure.ac: Unconditionally disable decimal float by default.
1689         * configure: Regenerate.
1690
1691 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1692
1693         * read-rtl.c (read_name): Terminate reading on EOF.
1694
1695 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1696
1697         * dfp.c (decimal_real_arithmetic): Change second argument type
1698         from int to enum tree_code. Do not always return true, but now
1699         return result of any call to decimal_do helper functions.
1700         * dfp.h (decimal_real_arithmetic): Update prototype.
1701
1702 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
1703
1704         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
1705
1706 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
1707
1708         PR tree-opt/25251
1709         * tree-cfg.c (cleanup_dead_labels): Also don't remove
1710         forced labels.
1711
1712 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1713
1714         * tree-vrp.c (cfg_loops): Removed.
1715         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
1716         Use current_loops instead of cfg_loops.  Pass flags to
1717         loop_optimizer_init.
1718         * cfgloopmanip.c (fix_loop_structure): Update only available
1719         information.
1720         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
1721         loop_optimizer_init.
1722         * modulo-sched.c (build_loops_structure): Removed.
1723         (sms_schedule): Use loop_optimizer_init.
1724         * loop-init.c (loop_optimizer_init): Use flags to determine
1725         which properties of loops to prepare.
1726         (rtl_loop_init): Pass flags to loop_optimizer_init.
1727         * tree-ssa-sink.c (execute_sink_code): Ditto.
1728         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
1729         * tree-ssa-pre.c (init_pre): Ditto.
1730         * cfgloop.h (LOOPS_NORMAL): New.
1731         (loop_optimizer_init): Declaration changed.
1732
1733 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1734
1735         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
1736         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
1737         pa/t-pa.
1738         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
1739         pa/t-pa.
1740         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
1741         pa/x-ada.
1742         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
1743         * pa/t-pa64: Delete quadlib.c rule.
1744         * pa/x-ada: Revert last change.
1745         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
1746
1747 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1748
1749         PR rtl-optimization/26087
1750         * rtlanal.c (canonicalize_condition): Do not cross basic block
1751         boundaries.
1752
1753 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
1754
1755         PR debug/24444
1756         * config/ia64/ia64.c: Include debug.h.
1757         (MAX_ARTIFICIAL_LABEL_BYTES): New.
1758         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
1759         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
1760         (process_epilogue, process_set, process_for_unwind_directive):
1761         Output unwind info only if requested.  Add CFA info if requested.
1762         Add new arguments as needed.  Adjust callers.
1763         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
1764         incorrect default.
1765         (DWARF2_FRAME_INFO): Define to zero.
1766         * config/ia64/unwind-ia64.c: Remove code that compensated for
1767         the CFA offset error fixed above.
1768         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
1769         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
1770         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
1771         -funwind-tables and -fexceptions to enable frame info.
1772         (dwarf2out_frame_init): Define initial CFA even if
1773         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
1774         DWARF2_UNWIND_INFO is nonzero, not just defined.
1775         (dwarf2out_frame_finish): Output non-EH call frame info only
1776         if DWARF2_FRAME_INFO is nonzero.
1777         (convert_cfa_to_loc_list,
1778         compute_frame_pointer_to_cfa_displacement): Define even if
1779         unwind info is not supported.
1780         (gen_subprogram_die): Use the above unconditionally.  Remove
1781         legacy alternate code.
1782         * toplev.c (compile_file): Compile in call to
1783         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
1784         (lang_dependent_init): Ditto for dwarf2out_frame_init.
1785
1786 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
1787             Jakub Jelinek  <jakub@redhat.com>
1788
1789         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
1790         IBM extended float format long double as "g" on powerpc*-linux.
1791
1792 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1793
1794         PR target/25926
1795         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
1796         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
1797
1798 2006-02-03  Jason Merrill  <jason@redhat.com>
1799
1800         PR c++/25979
1801         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
1802
1803         PR middle-end/25977
1804         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
1805         on the return slot if it's an NRV.
1806
1807 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
1808
1809         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
1810         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
1811         rewrite_use): Do not handle USE_OUTER.
1812         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
1813         add_iv_outer_candidates, may_replace_final_value,
1814         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
1815         (find_interesting_uses_op): Functionality of
1816         find_interesting_uses_outer_or_nonlin moved here.
1817         (find_interesting_uses_outside): Use find_interesting_uses_op.
1818
1819 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
1820
1821         PR target/25960
1822         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
1823
1824 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
1825             Ulrich Weigand  <uweigand@de.ibm.com>
1826
1827         PR target/25864
1828         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
1829         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
1830         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
1831         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
1832         and dxr fields.
1833         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
1834         (s390_rtx_costs): Use the new fields to calculate rtx costs.
1835         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
1836         Define secondary reloads for TFmode moves.
1837         (constant_modes): Add TFmode.
1838         (NR_C_MODES): Set to 8.
1839         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
1840         builtin define.
1841         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
1842         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
1843         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
1844         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
1845         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
1846         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
1847         (FPR mode macro): Add TFmode.
1848         (DSF mode macro): New.
1849         (<de>, <dee> mode attributes): Removed.
1850         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
1851         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
1852         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
1853         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
1854         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
1855         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
1856         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1857         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
1858         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
1859         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1860         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
1861         "*negabs<mode>2", "sqrt<mode>2"):
1862         Changed <de> to <xde>. R constraint replaced by <Rf>.
1863         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
1864         <Rf>.
1865         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1866         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1867         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
1868         splitters.
1869         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
1870         "extenddftf2", "extendsftf2"): New expanders.
1871         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
1872         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1873         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1874         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1875         New options.
1876         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1877         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
1878         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1879         __floatditf): Add a GCC_4.1.0 symbol version tag.
1880         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1881         the new options.
1882
1883 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1884
1885         PR target/25377
1886         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1887         Use targetm.binds_local_p instead of TREE_PUBLIC.
1888
1889 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1890
1891         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1892         on INTEGER_TYPEs to indicate that it denotes a character type.
1893         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1894         signed_char_type_node, unsigned_char_type_node and char_type_node.
1895         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1896         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1897         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1898
1899 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1900             Daniel Berlin  <dberlin@dberlin.org>
1901
1902         * tree-tailcall.c (arg_needs_copy_p): New function.
1903         (eliminate_tail_call): Use arg_needs_copy_p.
1904         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1905         (add_virtual_phis): New function.
1906
1907 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1908
1909         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1910         #ignore instead of #scratch for %g7 .register directive.
1911
1912 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1913
1914         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1915         object files.
1916
1917 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1918
1919         * flow.c (calculate_global_regs_live): Assert that there aren't any
1920         EDGE_FAKE edges.
1921
1922 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1923
1924         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1925         what its name says.
1926         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1927         bsi_after_labels iterator.
1928         * tree-if-conv.c (find_phi_replacement_condition,
1929         replace_phi_with_cond_modify_expr): Likewise.
1930         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1931         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1932
1933 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1934
1935         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1936
1937 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1938
1939         PR 25990
1940         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1941         array after growing it.
1942
1943 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1944
1945         PR middle-end/24901
1946         * fold-const.c (fold_checksum_tree): Change type of buf.
1947
1948 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1949
1950         * reload.c (push_secondary_reload): Initialize t_icode.
1951
1952 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1953
1954         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1955         -msoft-float -mlong-double-128 only issue a warning, but don't
1956         swich to DFmode long double.
1957
1958 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1959
1960         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1961         has a constant equivalent, iterate over equivalents for arg0,
1962         calling simplify_relational_operation and if there's a result
1963         cheaper than X, apply fold_rtx and return the result.
1964
1965 2006-02-01  Jan Hubicka  <jh@suse.cz>
1966
1967         * opts.c (no_unit_at_a_time_default): New global variable.
1968         (decode_options): Use it.
1969         * opts.h (no_unit_at_a_time_default): Declare.
1970
1971 2006-02-01  Paul Brook  <paul@codesourcery.com>
1972
1973         * function.c (assign_parm_setup_reg): Use function argument promotion
1974         rules.
1975         * expr.c (expand_expr_real_1): Use function argument promotion rules
1976         for PARM_DECLs.
1977
1978 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1979
1980         * gcc.c (process_command): Change j to 'unsigned int'.
1981
1982 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1983
1984         PR middle-end/26001
1985         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
1986         Use the corrected index for the character
1987         out of the string constant.
1988
1989 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1990
1991         * mode-switching.c (optimize_mode_switching): Fix size
1992         allocated for bb_info[n_entities].
1993
1994 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1995
1996         * gcc.c (main): Correct type that is allocated for
1997         explicit_link_files.
1998
1999 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
2000
2001         * config/s390/s390.c (init_alignment_context): Set
2002         ALIAS_SET_MEMORY_BARRIER on the MEM.
2003         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
2004
2005 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2006
2007         PR middle-end/25933
2008         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2009         dom_bbs pointer.
2010         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2011         call to tpa_init.
2012
2013 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2014
2015         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2016         * regrename.c: Ditto.
2017         * tree-ssa-loop-im.c: Ditto.
2018         * tree-dump.c: Ditto.
2019         * tree-complex.c: Ditto.
2020         * genrecog.c: Ditto.
2021         * tree-ssa-threadupdate.c: Ditto.
2022         * tracer.c: Ditto.
2023         * java/class.c: Ditto.
2024         * java/jcf-parse.c: Ditto.
2025         * java/resource.c: Ditto.
2026         * java/except.c: Ditto.
2027         * java/jvspec.c: Ditto.
2028         * java/jcf-write.c: Ditto.
2029         * java/jcf-path.c: Ditto.
2030         * java/gjavah.c: Ditto.
2031         * java/zextract.c: Ditto.
2032         * java/jcf-io.c: Ditto.
2033         * java/jcf.h: Ditto.
2034         * java/buffer.c: Ditto.
2035         * java/lang.c: Ditto.
2036         * java/parse-scan.y: Ditto.
2037         * java/lex.c: Ditto.
2038         * java/lex.h: Ditto.
2039         * cfgloopmanip.c: Ditto.
2040         * postreload-gcse.c: Ditto.
2041         * tree-ssa-loop-manip.c: Ditto.
2042         * postreload.c: Ditto.
2043         * tree-ssa-loop-ch.c: Ditto.
2044         * loop.c: Ditto.
2045         * ipa-cp.c: Ditto.
2046         * cppspec.c: Ditto.
2047         * diagnostic.c: Ditto.
2048         * final.c: Ditto.
2049         * genoutput.c: Ditto.
2050         * gcc.c: Ditto.
2051         * cfghooks.c: Ditto.
2052         * cfgloopanal.c: Ditto.
2053         * objc/objc-act.c: Ditto.
2054         * gcov.c: Ditto.
2055         * genextract.c: Ditto.
2056         * genautomata.c: Ditto.
2057         * pretty-print.c: Ditto.
2058         * genemit.c: Ditto.
2059         * cgraphunit.c: Ditto.
2060         * flow.c: Ditto.
2061         * df-scan.c: Ditto.
2062         * haifa-sched.c: Ditto.
2063         * dominance.c: Ditto.
2064         * dbxout.c: Ditto.
2065         * tree-ssa-loop-ivopts.c: Ditto.
2066         * df-core.c: Ditto.
2067         * mode-switching.c: Ditto.
2068         * modulo-sched.c: Ditto.
2069         * graph.c: Ditto.
2070         * ipa-pure-const.c: Ditto.
2071         * cse.c: Ditto.
2072         * fix-header.c: Ditto.
2073         * web.c: Ditto.
2074         * tree-stdarg.c: Ditto.
2075         * ipa-utils.c: Ditto.
2076         * loop-init.c: Ditto.
2077         * ipa-inline.c: Ditto.
2078         * cfganal.c: Ditto.
2079         * global.c: Ditto.
2080         * alloc-pool.c: Ditto.
2081         * dwarf2out.c: Ditto.
2082         * opts.c: Ditto.
2083         * genattrtab.c: Ditto.
2084         * tree-ssa-loop-ivcanon.c: Ditto.
2085         * predict.c: Ditto.
2086         * timevar.c: Ditto.
2087         * lcm.c: Ditto.
2088         * fortran/gfortranspec.c: Ditto.
2089         * regmove.c: Ditto.
2090         * local-alloc.c: Ditto.
2091         * langhooks.c: Ditto.
2092         * function.c: Ditto.
2093         * tree-vectorizer.c: Ditto.
2094         * gcse.c: Ditto.
2095         * ipa-type-escape.c: Ditto.
2096         * alias.c: Ditto.
2097         * tree-if-conv.c: Ditto.
2098         * profile.c: Ditto.
2099         * ipa.c: Ditto.
2100         * tree-data-ref.c: Ditto.
2101         * loop-unroll.c: Ditto.
2102         * treelang/treetree.c: Ditto.
2103         * calls.c: Ditto.
2104         * bt-load.c: Ditto.
2105         * ggc-common.c: Ditto.
2106         * except.c: Ditto.
2107         * coverage.c: Ditto.
2108         * cselib.c: Ditto.
2109         * tree-cfgcleanup.c: Ditto.
2110         * tree-ssa-pre.c: Ditto.
2111         * cfgcleanup.c: Ditto.
2112         * loop-invariant.c: Ditto.
2113         * loop-iv.c: Ditto.
2114         * ipa-prop.c: Ditto.
2115         * print-tree.c: Ditto.
2116         * conflict.c: Ditto.
2117         * ggc-page.c: Ditto.
2118         * sched-deps.c: Ditto.
2119         * regclass.c: Ditto.
2120         * tree-object-size.c: Ditto.
2121         * combine.c: Ditto.
2122         * bb-reorder.c: Ditto.
2123         * resource.c: Ditto.
2124         * var-tracking.c: Ditto.
2125         * cfgloop.c: Ditto.
2126         * df-problems.c: Ditto.
2127         * reg-stack.c: Ditto.
2128         * tlink.c: Ditto.
2129         * gccspec.c: Ditto.
2130         * sched-rgn.c: Ditto.
2131         * tree-ssa-structalias.c: Ditto.
2132         * tree-ssa-reassoc.c: Ditto.
2133         * config/darwin-c.c: Ditto.
2134         * config/darwin.c: Ditto.
2135         * config/arm/arm.c: Ditto.
2136         * cfgrtl.c: Ditto.
2137         * collect2.c: Ditto.
2138         * reload1.c: Ditto.
2139
2140 2006-01-31  Nicolas Pitre  <nico@cam.org>
2141
2142         * arm.md (smaxsi3): Make aware of smax_m1.
2143         (smax_m1): New.
2144
2145 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2146
2147         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2148
2149 2006-01-31  Richard Guenther  <rguenther@suse.de>
2150
2151         * doc/invoke.texi (-msselibm): Document.
2152         * target.h (expand_library_builtin): New target hook.
2153         * builtins.c (expand_builtin): Use expand_library_builtin.
2154         (default_expand_library_builtin): New function.
2155         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2156         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2157         (link_gcc_math_spec): Declare.
2158         (static_specs): Add link_gcc_math_spec.
2159         * expr.h (default_expand_library_builtin): Declare.
2160         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2161         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
2162         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
2163         * config/i386/i386.opt (msselibm): New target option.
2164         * config/i386/i386.c (ix86_builtin_function_variants): New array.
2165         (ix86_init_sse_abi_builtins): New function.
2166         (ix86_expand_library_builtin): Likewise.
2167         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2168         (override_options): Handle error conditions wrt -msselibm.
2169         (ix86_builtins): Add function codes for SSE2 ABI builtins.
2170         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
2171         * doc/extend.texi (__builtin_sse2_*): Document new target specific
2172         builtins.
2173
2174 2006-01-31  Richard Guenther  <rguenther@suse.de>
2175         Paolo Bonzini  <bonzini@gnu.org>
2176
2177         * doc/install.texi (--disable-libgcc-math): Document.
2178
2179 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
2180
2181         * expr.h (expand_normal): new inline function.
2182         * builtins.c: use it, use EXPAND_NORMAL explicitely.
2183         * dojump.c: use it.
2184         * dwarf2out.c: use it.
2185         * expr.c: use it.
2186         * calls.c: use it.
2187         * expmed.c: use it.
2188         * except.c: use it.
2189         * config/sparc/sparc.c: use it.
2190         * config/i386/i386.c: use it.
2191         * config/rs6000/rs6000.c: use it.
2192         * config/arm/arm.c: use it.
2193         * config/mips/mips.c: use it.
2194         * stmt.c: use it, use EXPAND_NORMAL explicitely.
2195
2196 2006-01-30  Roger Sayle  <roger@eyesopen.com>
2197
2198         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
2199         argv to the appropriate type.
2200
2201 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
2202
2203         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
2204         unreachable code.
2205
2206 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
2207
2208         PR target/26018
2209         * config/s390/s390.c (struct machine_function): New flag
2210         decomposed_literal_pool_addresses_ok_p.
2211         (s390_reorg): Set it before final stage of literal pool transforms.
2212         (s390_decompose_address): Only accept displacements of the form
2213         (minus (label_ref ...) (label_ref ...)) if that flag is set.
2214
2215 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
2216
2217         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
2218         the comparison routine return.
2219
2220 2006-01-30  Michael Matz  <matz@suse.de>
2221
2222         * global.c (find_reg): Only evict for global regs.
2223         Take n_refs into account and dump more info.
2224
2225 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
2226
2227         PR target/14798:
2228         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
2229         (pragma_trap, pragma_nosave_low_regs): Likewise.
2230         (current_function_anonymous_args): Likewise.
2231         (sh_deferred_function_attributes): New variable.
2232         (sh_deferred_function_attributes_tail): Likewise.
2233         (print_operand): For '@', look up trap_exit attribute.
2234         (calc_live_regs): Look up trapa_handler attribute.  For trapa
2235         handlers, save/restore fpscr, but don't do any other
2236         interrupt-specific saves.
2237         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
2238         Fix check for partially saved registers to check for SHmedia.
2239         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
2240         (sh_output_function_epilogue): Don't clear any of the removed
2241         variables.
2242         (sh_insert_attributes): Don't check pragma_interrupt.
2243         Insert deferred attributes.  Check that interrupt attribute is
2244         present for other attributes that require its presence.
2245         (sh_attribute_table): Add new attributes trapa_handler and
2246         nosave_low_regs.
2247         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
2248         Don't check for pragma_interrupt.  Don't store argument.
2249         * sh.h (pragma_interrupt, sp_switch): Don't declare.
2250         (sh_deferred_function_attributes): Declare.
2251         (sh_deferred_function_attributes_tail): Likewise.
2252         * sh.md (sp_switch_1): Add operand.  Change generator caller.
2253         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
2254         (*return_i): Don't use when trap_exit attribute is in effect.
2255         (*return_trapa): New insn pattern.
2256         * sh-c.c: New file.
2257         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
2258         setting c_target_objs and cxx_target_objs.
2259         * t-sh: Add rule for sh-c.o.
2260
2261 2006-01-30  Richard Guenther  <rguenther@suse.de>
2262
2263         PR c++/23372
2264         * gimplify.c (gimplify_target_expr): Handle easy cases
2265         without creating a temporary.
2266
2267 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
2268
2269         * vec.h (safe_grow): Remove duplicated line.
2270
2271 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
2272
2273         PR 25874
2274         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
2275         (expand_omp): ... here.
2276         (expand_omp_parallel): Only remove barriers for combined
2277         parallel+workshare constructs.
2278
2279 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2280
2281         Revert
2282
2283         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
2284         * tree.c (build_qualified_type): Chain the new type to the original
2285         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
2286         a POINTER_TYPE or a REFERENCE_TYPE respectively.
2287         (build_pointer_type_for_mode): Only return unqualified types.
2288         (build_reference_type_for_mode): Likewise.
2289
2290 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
2291
2292         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
2293         * Makefile.in (CXX_COMPAT_WARN): Define.
2294         * configure: Regenerate.
2295
2296 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2297
2298         PR tree-opt/25911
2299         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
2300         to an if check.
2301
2302 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2303
2304         * toplev.c: Fix thinko.
2305
2306 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2307             Marcin Dalecki  <martin@dalecki.de>
2308
2309         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
2310         (push_srcloc): Use XNEW.
2311         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
2312
2313 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
2314
2315         * df-core.c (df_set_blocks): Deleted all variable.
2316
2317 2006-01-28  Ian Lance Taylor  <ian@airs.com>
2318
2319         * cgraphunit.c (cgraph_assemble_pending_functions): Call
2320         cgraph_output_pending_asms.
2321
2322 2006-01-28  Zack Weinberg  <zackw@panix.com>
2323
2324         * c.opt: Add -W(no-)overlength-strings.
2325         * doc/invoke.texi: Document it.
2326         * c-opts.c (c_common_handle_option): -pedantic implies
2327         -Woverlength-strings, if not explicitly disabled already.
2328         (c_common_post_options): -Woverlength-strings defaults to off, and
2329         is always off for C++.
2330         * c-common.c (fix_string_type): Issue warning about strings longer
2331         than is portable only if warn_overlength_strings.  Rearrange code
2332         a little for clarity.
2333         * configure.in: Check for -Wno-overlength-strings as well before
2334         enabling -pedantic in stage 1.
2335         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
2336         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
2337
2338         * genconditions.c (write_header, write_one_condition)
2339         (write_conditions, write_writer): Consolidate very long strings
2340         that were broken up to fit in C89 portable limit.  Don't use
2341         printf when fputs will do.
2342
2343 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
2344
2345         * combine.c (simplify_comparison <AND>): Check
2346         TRULY_NOOP_TRUNCATION before start using a subreg.
2347
2348         * config/mips/mips.md (*branch_zero<mode>,
2349         *branch_zero<mode>_inverted, *branch_equality<mode>,
2350         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
2351         Remove mode check from comparisons.
2352
2353 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
2354
2355         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
2356
2357 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2358
2359         * expmed.c (const_mult_add_overflow_p): Remove.
2360         * expr.h: Remove the prototype for const_mult_add_overflow_p.
2361
2362         * recog.c (validate_replace_rtx_subexp): Remove.
2363         * recog.h: Remove the prototype for
2364         validate_replace_rtx_subexp.
2365
2366         * integrate.h: Remove the prototype for
2367         copy_decl_for_inlining.
2368         * rtl.h: Remove the prototype for mark_constant_function.
2369         * tree-vectorizer.h: Remove the prototype for
2370         vect_strip_conversion.
2371
2372         * modulo-sched.c (create_partial_schedule,
2373         free_partial_schedule, reset_partial_schedule): Make them
2374         static.
2375
2376         * hooks.c (hook_bool_rtx_int_false): Remove.
2377         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
2378
2379 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
2380
2381         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2382         and -mlong-double-128 are incompatible.
2383         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
2384         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
2385         (TARGET_LIBGCC2_CFLAGS): Define.
2386         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
2387         (TARGET_LIBGCC2_CFLAGS): Same.
2388         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
2389
2390 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2391
2392         PR c/19606.
2393         * c-typeck.c (build_binary_op): Perform implicit casts of
2394         operands before shortening them.
2395
2396         * cfgloopmanip.c (split_loop_bb): Remove.
2397         * cfgloop.h: Remove the prototype for split_loop_bb.
2398
2399         * cfgloop.c (flow_loop_outside_edge_p): Remove.
2400         * cfgloop.h: Remove the prototype for
2401         flow_loop_outside_edge_p.
2402
2403         * emit-rtl.c (init_virtual_regs): Make it static.
2404         * function.h: Remove the prototype for init_virtual_regs.
2405
2406         * recog.c (peephole2_optimize): Make it static.
2407         * recog.h: Remove the prototype for peephole2_optimize.
2408
2409 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2410
2411         * df-scan.c (df_record_entry_block_defs): Check if
2412         INCOMING_RETURN_ADDR_RTX is defined.
2413
2414 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
2415             Kenneth Zadeck <zadeck@naturalbridge.com>
2416
2417         PR rtl-optimization/24762
2418         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2419         * targhooks.c (hook_void_bitmap): New hook prototype.
2420         * targhoohs.h (hook_void_bitmap): Ditto.
2421         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
2422         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
2423         * target.h (live_on_entry): New function pointer.
2424         * df-scan.c (df_all_hard_regs): Removed.
2425         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
2426         (df_scan_free_internal): Added df->entry_block_defs.
2427         (df_scan_alloc): Ditto.
2428         (df_scan_dump): Ditto.
2429         (df_uses_record): Plumbed flag field properly thru calls.
2430         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
2431         This part fixes PR24762.
2432         (df_bb_refs_record): Added code to make the frame and arg
2433         pointers live in EH blocks.
2434         (df_refs_record): Added call to df_record_entry_block_defs.
2435         (df_record_entry_block_defs): New function.
2436         * df-core.c: Added comments to describe new artifical defs.
2437         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
2438         (entry_block_defs): New field in struct df.
2439         (df_all_hard_regs): Deleted.
2440         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2441         * df-problems.c (df_ru_bb_local_compute_process_def):
2442         Added code to handle artifical defs in the entry to a function.
2443         (df_ru_bb_local_compute): Ditto.
2444         (df_rd_bb_local_compute_process_def):  Ditto.
2445         (df_rd_bb_local_compute): Ditto.
2446         (df_lr_bb_local_compute): Ditto.
2447         (df_ur_bb_local_compute): Ditto.
2448         (df_urec_bb_local_compute):  Ditto.
2449         (df_chain_create_bb):  Ditto.
2450         (df_ur_local_finalize): Removed entry.
2451         (df_urec_init): Ditto.
2452         (df_urec_local_finalize): Ditto.
2453         (df_ri_bb_compute): Added detection of last use of pseudos.
2454         * Makefile.in (df-scan.o): Updated dependencies.
2455         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
2456         * config/mips/mips.c (mips_set_live_on_entry): Added.
2457         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
2458         for target hook.
2459         * dce.c (marked_insn_p): Added code to handle artifical defs.
2460
2461 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2462
2463         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
2464         intrinsic.
2465         (_mm_cvtsi128_si64): Likewise.
2466         (_mm_cvtsd_si64): Likewise.
2467         (_mm_cvttsd_si64): Likewise.
2468         (_mm_cvtsi64_sd): Likewise.
2469         (_mm_cvtsi64_si128): Likewise.
2470         * config/i386/mmintrin.h (_m_from_int64): Likewise.
2471         (_mm_cvtsi64_m64): Likewise.
2472         (_m_to_int64): Likewise.
2473         (_mm_cvtm64_si64): Likewise.
2474         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
2475         (_mm_cvttss_si64): Likewise.
2476         (_mm_cvtsi64_ss): Likewise.
2477         (_mm_cvtss_f32): Likewise.
2478
2479 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
2480
2481         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
2482         for pragma redefine_extname.
2483
2484 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
2485
2486         PR target/25864
2487         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
2488         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
2489         -mno-minimal-toc to previous content.
2490         (bispecs): Remove goal.
2491         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
2492         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
2493         compatibility aliases on powerpc-*-*gnu*.
2494         * config/rs6000/libgcc-ppc-glibc.ver: New file.
2495         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
2496         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
2497         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
2498         (ldblspecs): New goal.
2499         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
2500         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
2501         _df_to_tf.
2502         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
2503         L_sf_to_tf or L_df_to_tf is defined.
2504
2505 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
2506             Alan Modra  <amodra@bigpond.net.au>
2507
2508         PR target/25864
2509         * config/rs6000/linux.h (POWERPC_LINUX): Define.
2510         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
2511         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
2512         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
2513         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
2514         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
2515         (rs6000_override_options): Initialize rs6000_ieeequad.
2516         Initialize TFmode format to ibm_extended_format if not
2517         TARGET_IEEEQUAD.
2518         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
2519         ieeelongdouble.
2520         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
2521         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
2522         (function_arg_advance): IBM long double passed in two FPRs, not
2523         split.
2524         (function_arg): IBM long double passed in FPRs.
2525         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
2526         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
2527         Only multireg GPR aligned.
2528         (rs6000_init_libfuncs): Enable IBM long double functions if not
2529         IEEEQUAD.
2530         (rs6000_generate_compare): Use IBM long double compare if not
2531         TARGET_IEEEQUAD.
2532         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
2533         (TARGET_IEEEQUAD): Define.
2534         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
2535         not TARGET_IEEEQUAD.
2536         * config/rs6000/rs6000.md: Enable TFmode patterns if
2537         !TARGET_IEEEQUAD.
2538         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
2539         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2540         and -mlong-double-128 are incompatible.
2541         * doc/invoke.texi (-mabi): Collect options together.  Add
2542         ibmlongdouble and ieeelongdouble.
2543
2544 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
2545
2546         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
2547         opaque type.
2548         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
2549         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
2550         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
2551         * rtl.h (rtunion_def): Remove rt_ptr.
2552         (X0PTR): Delete.
2553         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
2554         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
2555         * config/i386/winnt.c (i386_pe_mark_dllexport)
2556         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
2557
2558 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
2559
2560         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
2561
2562 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
2563
2564         PR other/24829
2565         PR target/24831
2566         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
2567         pthread_key_delete.  From John David Anglin.  gthrw-ify
2568         pthread_getunique_np only if it it's not a macro.  Delete
2569         UNUSED macro.
2570         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
2571         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
2572         __gthread_objc_condition_signal, __gthread_key_delete): Add
2573         "__attribute__ ((__unused__))" to unused arguments.
2574         (__gthread_recursive_mutex_init_function): Add missing return.
2575         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
2576         gthr-posix95.h: Use macro-based approach for name redirection
2577         on targets missing weakref.
2578
2579 2006-01-26  Zack Weinberg  <zackw@panix.com>
2580
2581         * genconditions.c (write_header): In generated code, #ifdef out
2582         all includes and fake declarations, except includes of bconfig.h
2583         and system.h, unless GCC_VERSION >= 3001.  Do not include
2584         gensupport.h in any case.
2585         (write_conditions): Generate a definition of struct c_test.  Add
2586         a comment to the generated #endif.
2587         (write_one_condition): Escape backslashes in string too.
2588         (write_writer): Generated code must escape backslashes and quote
2589         marks (but not newlines) in the strings it writes.
2590         * Makefile.in (build/gencondmd.o): Update dependencies.
2591
2592 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2593
2594         PR target/25961
2595         * Makefile.in (insn-automata.o): Add header file dependencies.
2596         * genautomata.c: Add includes.
2597
2598 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2599
2600         PR target/25961
2601         * Makefile.in (insn-automata.o): Add -Wno-error flag.
2602
2603 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2604
2605         * configure.ac: Expect target tools paths to be passed from the toplevel
2606         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
2607         AS_SET_VAR_IF.
2608         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
2609
2610 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
2611
2612         PR c/25892
2613         * c.opt (Wpointer-sign): Init to -1.
2614         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
2615         OPT_pedantic, to 0 otherwise.
2616         * doc/invoke.texi: Update.
2617
2618 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2619
2620         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
2621         constants provided by 80387 instructions in the destination mode.
2622
2623 2006-01-26  Richard Guenther  <rguenther@suse.de>
2624             Andrew Pinski  <pinskia@physics.uc.edu>
2625
2626         PR tree-opt/21470
2627         partial PR tree-opt/17064
2628         * tree-ssa-structalias.c (intra_create_variable_infos):
2629         Create heap variables for incoming parameters if
2630         flag_argument_noalias > 1.
2631         (find_what_p_points_to): Look through default defs of
2632         parameter decls.
2633
2634 2006-01-26  Jeff Law  <law@redhat.com>
2635
2636         PR ada/25900
2637         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
2638         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
2639         within the VR_RANGE, use the VR_RANGE as the result, not the
2640         VR_ANTI_RANGE.
2641         (adjust_range_with_scev): Reject ranges from SCEV which are out of
2642         bounds for the type.
2643
2644 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
2645
2646         * tree-ssa-alias.c (maybe_create_global_var): Change
2647         subvar walking to an assertion that we don't have subvar'd variables.
2648
2649 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
2650
2651         PR C/25861
2652         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
2653         Use a new variable, inner.  PARM_DECLs are always non-weak.
2654
2655 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
2656
2657         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
2658         --disable-checking.
2659
2660 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
2661
2662         * config/mips/mips.md (*clear_upper32): New combiner pattern.
2663
2664 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
2665
2666         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
2667         (smax_insn, smin_insn, smax_0, smin_0): New.
2668
2669 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
2670
2671         PR target/25947
2672         * config/cris/cris.c (cris_order_for_addsi3): New function.
2673         * config/cris/cris-protos.h: Prototype it.
2674         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
2675         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
2676         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
2677         (split for "op.S1 [rx=rx+i],ry (swapped)")
2678         (split for "op(s|u).S1 [rx=rx+i],ry")
2679         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
2680         Apply cris_order_for_addsi3 when generating addsi3 insns.
2681
2682 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2683
2684         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
2685         (TREE_BLOCK): Add call to EXPR_CHECK.
2686
2687 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2688
2689         PR 25886
2690         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
2691         * tree-pretty-print.c (dump_omp_clause): Extract from ...
2692         (dump_omp_clauses): ... here.
2693         (dump_generic_node): Handle OMP_CLAUSE.
2694         * tree.c (omp_clause_num_ops): New.
2695         (omp_clause_code_name): New.
2696         (tree_code_size): Handle OMP_CLAUSE.
2697         (tree_size): Likewise.
2698         (make_node): Document handling of OMP_CLAUSE.
2699         (tree_node_structure): Handle OMP_CLAUSE.
2700         (omp_clause_check_failed): New.
2701         (omp_clause_range_check_failed): New.
2702         (omp_clause_operand_check_failed): New.
2703         (build_omp_clause): New.
2704         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
2705         * tree.h (enum omp_clause_code): Declare.
2706         (OMP_CLAUSE_SUBCODE_CHECK): Define.
2707         (OMP_CLAUSE_RANGE_CHECK): Define.
2708         (OMP_CLAUSE_ELT_CHECK): Define.
2709         (omp_clause_check_failed): Declare.
2710         (omp_clause_operand_check_failed): Declare.
2711         (omp_clause_range_check_failed): Declare.
2712         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
2713         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
2714         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
2715         (OMP_CLAUSE_LASTPRIVATE): Likewise.
2716         (OMP_CLAUSE_IF_EXPR): Likewise.
2717         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
2718         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
2719         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
2720         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
2721         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
2722         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
2723         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
2724         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
2725         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
2726         (OMP_CLAUSE_CODE): Define.
2727         (OMP_CLAUSE_SET_CODE): Define.
2728         (OMP_CLAUSE_CODE): Define.
2729         (OMP_CLAUSE_OPERAND): Define.
2730         (struct tree_omp_clause): Declare.
2731         (union tree_node): Add field 'omp_clause'.
2732         * treestruct.def (TS_OMP_CLAUSE): Define.
2733         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
2734         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
2735         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
2736         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
2737         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
2738         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
2739         (OMP_CLAUSE): Define.
2740         * print-tree.c (print_node): Handle OMP_CLAUSE.
2741         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
2742         * c-typeck.c: Likewise.
2743         * gimplify.c: Likewise.
2744         * c-omp.c: Likewise.
2745         * tree-nested.c: Likewise.
2746         * tree-inline.c: Likewise.
2747         * c-parser.c: Likewise.
2748         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
2749         clauses.
2750
2751 2006-01-25  Roger Sayle  <roger@eyesopen.com>
2752
2753         PR rtl-optimization/25703
2754         * combine.c (try_combine): Handle zero_extract and strict_low_part
2755         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
2756
2757 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
2758
2759         * global.c: Fix comment typos.
2760
2761 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
2762
2763         PR target/25758
2764         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
2765         Use output_addr_const instead of assemble_name.
2766
2767 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
2768
2769         * Makefile.in (sched-vis.o): Update dependencies.
2770         * haifa-sched.c (sched_finish): Clear current_sched_info.
2771         * cfg.c (dump_bb_info): New, split from dump_flow_info.
2772         (dump_flow_info): Call it.
2773         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
2774         a slim RTL dump.
2775         * basic-block.h (dump_bb_info): Declare.
2776         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
2777         option, and apply options only for dump files whose TDF_RTL,
2778         TDF_TREE, or TDF_IPA bits match.
2779         * rtl.h: Declare new functions exported from sched-vis.c.
2780         * sched-vis.c: Enable also if scheduling is not used.
2781         (print_value): Print the mode of registers if not inside scheduling.
2782         (print_insn): Make it work outside the scheduler.  Beautify the output
2783         a bit.
2784         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
2785
2786 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2787
2788         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
2789         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
2790         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
2791         depending on the value of CONSTANT_POOL_ADDRESS_P.
2792         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
2793         SYMBOL_REF_DECL.
2794         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
2795         rather than SYMBOL_REF_DECL.
2796         (rtx_constant_pool): Remove const_rtx_sym_htab.
2797         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
2798         (init_varasm_status): Don't initialize const_rtx_sym_htab.
2799         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
2800         Remove handling of const_rtx_sym_htab.
2801         (find_pool_constant): Delete.
2802         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
2803         rather than find_pool_constant.
2804         (get_pool_constant_for_function): Delete.
2805         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
2806         find_pool_constant.
2807         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
2808         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
2809         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
2810         (SYMBOL_REF_CONSTANT): New macro.
2811         (get_pool_constant_for_function): Delete.
2812         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
2813         rather than SYMBOL_REF_DECL.
2814         (i386_pe_mark_dllimport): Likewise.
2815         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
2816         rather than SYMBOL_REF_DECL.
2817         * config/darwin.c (machopic_indirect_data_reference): Likewise.
2818         (machopic_indirect_call_target): Likewise.
2819
2820 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
2821
2822         * flow.c (delete_noop_moves): Add missing EOL to dump message.
2823
2824 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2825
2826         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
2827
2828 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
2829
2830         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
2831
2832 2006-01-24  David Daney  <ddaney@avtrex.com>
2833
2834         PR java/25816
2835         * configure.ac (enable_tls): New enable option.
2836         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
2837         * configure: Regenerate.
2838         * doc/install.texi (--enable-tls): Document new option.
2839         (--disable-tls): Ditto.
2840
2841 2006-01-24  Richard Henderson  <rth@redehat.com>
2842
2843         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
2844         * alias.c (true_dependence): Respect it.
2845         (canon_true_dependence, write_dependence_p): Likewise.
2846         * builtins.c (get_builtin_sync_mem): Set it.
2847
2848 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
2849
2850         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
2851         efficient way.
2852
2853 2006-01-24  DJ Delorie  <dj@redhat.com>
2854
2855         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2856         for storing constants in single-bit bitfields.
2857
2858 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2859
2860         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2861
2862 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2863
2864         PR tree-opt/25860
2865         * tree-ssa-pre.c (phi_translate): Return NULL
2866         for AGGREGATE_TYPE's.
2867
2868 2006-01-24  Zack Weinberg  <zackw@panix.com>
2869
2870         * genautomata.c (process_state_for_insn_equiv_partition):
2871         Use xcalloc for insn_arcs_array.
2872         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2873         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2874
2875 2006-01-24  Richard Henderson  <rth@redhat.com>
2876
2877         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2878         update all callers.
2879
2880 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2881
2882         PR rtl-optimization/25890
2883         PR rtl-optimization/25905
2884         * combine.c (expand_compound_operation, expand_field_assignment):
2885         Fail if the bitfield's final position is out of bounds.
2886
2887 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2888
2889         PR middle-end/25930
2890         * cgraphunit.c (cgraph_output_in_order): Don't clear
2891         cgraph_asm_nodes until after asm strings have been output.
2892
2893 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2894
2895         * fix-header.c (read_scan_file): Add new parameter imultilib when
2896         calling register_include_chains.
2897
2898 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2899
2900         * omp-low.c: Update documentation.
2901
2902 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2903             Daniel Berlin  <dberlin@dberlin.org>
2904
2905         PR tree-opt/25315
2906         PR tree-opt/25857
2907         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2908         return from the function.
2909
2910 2006-01-22  Zack Weinberg  <zackw@panix.com>
2911
2912         * rtl.def (match_code): Add second argument.
2913         * genpreds.c (write_extract_subexp): New function.
2914         (write_match_code): Add path argument.  Use write_extract_subexp.
2915         (write_predicate_expr): Pass path to write_match_code.
2916         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2917         not perform a mode test.
2918         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2919         a subexpression does not constrain the top-level code set.
2920         * read-rtl.c (read_rtx_variadic): New function.
2921         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2922         * doc/md.texi: Document new notation.
2923         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2924         (cmpsi_operand): ... here, using new notation.
2925
2926 2006-01-22  Zack Weinberg  <zackw@panix.com>
2927
2928         * varray.c: Remove GENERATOR_FILE #ifdefs.
2929
2930 2006-01-22  Zack Weinberg  <zackw@panix.com>
2931
2932         * genautomata.c (output_reserved_units_table): Emit nothing if
2933         description->query_units_num is zero.  Remove extra blank line.
2934         (output_cpu_unit_reservation_p): Short circuit
2935         if description->query_units_num is zero.
2936
2937 2006-01-22  Zack Weinberg  <zackw@panix.com>
2938
2939         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2940         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2941         nor any of the random handful of variables that used to be necessary
2942         when this program was linked with rtlanal.o.  Prune set of forward
2943         function declarations.
2944         (struct attr_desc): Remove static_p field.
2945         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2946         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2947         (attr_string): Do not read the character one past the length of
2948         the string.
2949         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2950         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2951         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2952         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2953         (make_automaton_attrs): New.
2954         (main): Do not call into genautomata.  Call local gen_bypass
2955         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2956         Remove special case for insn_alts.
2957         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2958         varray.h (leftover from previous change).  Prune set of forward
2959         function declarations.  Remove state_alts fields from all
2960         structures.  Remove state_alts_table from struct automaton.
2961         Make everything except main static.  Do not maintain num_dfa_decls.
2962         Do not maintain state_alts fields of various structures.
2963         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2964         (add_arc): Remove state_alts argument.  All callers updated.
2965         (output_reserved_units_table): Emit #ifdef here...
2966         (output_tables): ...not here.  Don't generate state_alts tables.
2967         (expand_automata): Don't generate attributes.
2968         (write_automata): Don't generate state_alts functions.
2969         (main): New function.
2970         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
2971         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
2972         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
2973         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
2974         (BYPASS_P_FUNC_NAME, output_state_alts_table)
2975         (output_automata_list_state_alts_code, output_internal_state_alts_func)
2976         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
2977         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
2978         Delete.
2979         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
2980         * genattrtab.h: Delete file.
2981         * Makefile.in (OBJS-common): Add insn-automata.o.
2982         (insn-automata.o): New rule.
2983         (simple_generated_c): Add insn-automata.c.
2984         (build/genattrtab.o, build/genautomata.o): Update dependencies.
2985         (genprogmd): Add automata.
2986         (build/genattrtab): Needs no extra objects nor libraries.
2987         (build/genautomata): Needs build/vec.o and -lm.
2988
2989 2006-01-22  Zack Weinberg  <zackw@panix.com>
2990
2991         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
2992         (output_dfa_max_issue_rate, locked_states_num): Delete.
2993         (struct automaton): Add locked_states field.
2994         (output_dead_lock_vect): Save number of locked states in
2995         automaton->locked_states.  If it is zero, don't print anything.
2996         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
2997         (output_internal_dead_lock_func): Only test the dead_lock_vect
2998         for automata that have locked states.
2999         (output_statistics): Always print the number of locked states for
3000         each automaton.  Calculate total number of locked states here.
3001         (write_automata): Don't call output_dfa_max_issue_rate.
3002         * genattrtab.c: Define length_unit_log as a const variable.
3003         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
3004         max_insn_queue_index const.
3005         * final.c (length_unit_log): Declare const.
3006         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
3007
3008 2006-01-22  Zack Weinberg  <zackw@panix.com>
3009
3010         * genautomata.c:  Include vec.h, not varray.h.
3011         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
3012         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
3013         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
3014         VEC_* macros operating on appropriately typed vectors, or to
3015         malloced arrays when the size is known in advance.  Const-ify
3016         many char* variables and function arguments.  No functional changes.
3017         * Makefile.in (build/varray.o): Delete rule.
3018         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3019         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3020
3021 2006-01-22  Zack Weinberg  <zackw@panix.com>
3022
3023         * gensupport.c: Define get_insn_name and record_insn_name here.
3024         (read_md_rtx): Call record_insn_name as appropriate.
3025         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3026         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3027         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3028         record_insn_name.
3029         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3030         (BUILD_VARRAY): Delete.
3031         (genprognormal): Rename genprogmd.  Fold in all programs from
3032         genprognoprint; also attrtab.
3033         (build/genattrtab): Just mention genautomata.o and varray.o.
3034         Reorganize a bit, add comments to make the categories clearer.
3035
3036 2006-01-22  Zack Weinberg  <zackw@panix.com>
3037
3038         * genconditions.c (condition_table, add_condition): Delete.
3039         (write_conditions): Don't emit n_insn_conditions nor
3040         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3041         inside the table, with no #else clause ...
3042         (write_header): ...not here.
3043         (write_writer): New function.
3044         (main): Don't initialize condition_table.  Use add_c_test.
3045         Call write_writer.
3046         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3047         files on the command line.
3048         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3049         Return -1 if there is no entry in the table, don't abort.
3050         (add_c_test, traverse_c_tests): New functions.
3051         * gensupport.h (insn_elision_unavailable, insn_conditions)
3052         (n_insn_conditions): Delete declarations.
3053         (add_c_test, traverse_c_tests): Declare.
3054         * read-rtl.c: Include gensupport.h.
3055         (read_conditions): New function.
3056         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3057         (read_rtx_1): If we get EOF when we were looking for an initial
3058         open paren, return 0.  Call read_conditions when appropriate.
3059         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3060         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3061         or change them to build/gencondmd.o, as appropriate.  Remove
3062         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3063         from $(simple_generated_c).  For all files remaining in those
3064         two lists, add insn-conditions.md to the generator command line.
3065         Give insn-constants.h/s-constants their own rules.  Add rules
3066         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3067         (build/read-rtl.o): Depend on gensupport.h.
3068         (genprognormal): Include preds.
3069         (genprogearly): Rename genprognoprint; only difference is now that
3070         they don't link with $(BUILD_PRINT).
3071         * dummy-conditions.c: Delete.
3072
3073 2006-01-22  Zack Weinberg  <zackw@panix.com>
3074
3075         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3076         Declare vectors of int, char, and locstr.
3077         (locstr): New typedef.
3078         (struct extraction): Make all array fields into bare pointers.
3079         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3080         (insn_code_number): Delete.
3081         (accum_extract): New struct.
3082         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3083         (gen_insn): Take insn_code_number as an argument.  Use an
3084         accum_extract structure instead of loading data directly into
3085         a struct extraction, and having to know how big it might get.
3086         (walk_rtx): Operate entirely on an accum_extract structure.
3087         (print_path): Avoid unnecessary use of printf.
3088         (print_header): New function, split out of main.  Distinguish
3089         more carefully between an unrecognizable insn and an insn that
3090         has the code number of a define_expand.
3091         (main): Pass insn_code_number to gen_insn.  Call print_header
3092         only after parsing.  Avoid unnecessary use of printf.
3093         * Makefile.in (build/vec.o): New rule.
3094         (build/genextract): Depend on build/vec.o.
3095         (build/genextract.o): Don't depend on insn-config.h.
3096
3097 2006-01-22  Zack Weinberg  <zackw@panix.com>
3098
3099         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3100         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3101         practical.  Eliminate per-generator-program link rules.
3102
3103 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3104
3105         PR middle-end/24437
3106         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3107         with a call expr to ...
3108         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3109
3110 2006-01-23  Richard Guenther  <rguenther@suse.de>
3111
3112         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3113         before make_edge with conditional EDGE_TRUE_VALUE.
3114
3115 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3116         Jan Hubicka  <jh@suse.cz>
3117         Richard Guenther  <rguenther@suse.de>
3118
3119         PR rtl-optimization/25654
3120         * cfgexpand.c (aggregate_contains_union_type): New function.
3121         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3122         for structure variables that contain a union type.
3123
3124 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3125
3126         * gengtype.c (new_structure): Return the structure.
3127         (create_option): Add an extra "next" argument.
3128         (create_field): New function.
3129         (adjust_field_rtx_def): Use create_option and create_field.
3130         Remove a now-unnecessary call to find_structure.
3131         (adjust_field_tree_def): Likewise.
3132         (note_yacc_type): Remove an unnecessary call to find_structure.
3133         * gengtype.h (new_structure): Return the structure.
3134         (create_option): Add an extra argument.
3135         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3136         (option): Adjust calls to create_option.
3137
3138 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3139
3140         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3141
3142 2006-01-22  Paul Brook  <paul@codesourcery.com>
3143         Peter Barada  <peter@the-baradas.com>
3144
3145         * config/m68k/m68k.md: Add Coldfire FPU support.
3146         Define FP mode macro and associated attributes.
3147         Use it for float mode patterns.
3148         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3149         (LIBCALL_VALUE): Use m68k_libcall_value.
3150         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3151         (m68k_function_value): Ditto.
3152         (emit_move_sequence): Ditto.
3153         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3154         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3155         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3156         (MULTILIB_EXCEPTIONS): Ditto.
3157         * config/m68k/m68k.opt: Add mcfv4e.
3158         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3159         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3160         (m68k_output_function_prologue): Save ColdFire FPU registers.
3161         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
3162         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
3163         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
3164         ColdFire FPU registers.
3165         (m68k_libcall_value, m68k_function_value): New functions.
3166         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
3167         (LIBCALL_VALUE): Use m68k_libcall_value.
3168         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
3169         (MASK_COLDFIRE): Add MASK_CFV4E.
3170         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
3171         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
3172         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
3173         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
3174         (GO_IF_LEGITIMATE_ADDRESS): Use it.
3175         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
3176         * doc/invoke.tex: Document -mcfv4e on m68k.
3177
3178 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
3179
3180         * doc/contribute.texi: Change CVS to SVN and update the corresponding
3181         URL.
3182
3183 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3184
3185         PR c++/16190
3186         * c-opts.c (c_common_handle_option): Don't include
3187         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
3188         * doc/invoke.texi (C++ Dialect Options): Document that
3189         -Wnon-virtual-dtor is no longer included in -Wall.
3190
3191 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
3192
3193         * gcov.c (print_version), gcov-dump.c (print_version),
3194         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
3195         dates.
3196
3197 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
3198
3199         * df-scan.c (problem_SCAN): Added NULL reset function.
3200         (df_scan_reset_blocks): Added code to call reset block function
3201         (df_bb_refs_delete) Fixed comment.
3202         (df_insn_refs_delete): Made tolerant of deleting non existent info
3203         for dataflow problems that need to be reset.
3204         * df-core.c (df_set_blocks): Ditto.
3205         * df.h (struct df_problem): Added reset_fun.
3206         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
3207         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
3208         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
3209         functions to clear out all references to def-use or use-def chains.
3210
3211 2006-01-21  Ben Elliston  <bje@au.ibm.com>
3212
3213         * varasm.c (assemble_real): Initialise data array.
3214
3215 2006-01-20  Paul Brook  <paul@codesourcery.com>
3216
3217         Merge from csl-arm-branch.
3218         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
3219         * config/arm/arm.md (movdi): Force operands[1] to a register
3220         if we have a non-register source.
3221         (*arm_movdi, *movdf_soft_insn): Require that one of the
3222         operands be a register.
3223         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
3224         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
3225
3226 2006-01-20  DJ Delorie  <dj@redhat.com>
3227
3228         * varasm.c (initialize_constant_valid_p): Allow pointers
3229         initialized from integer constants of lesser precision.
3230         (output_constant): Allow non-int-sized pointer modes to be
3231         initialized from integer constants.
3232
3233 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
3234
3235         PR libstdc++/25524
3236         * cppdefault.h (struct default_include): Add multilib flag.
3237         * cppdefault.c (cpp_include_defaults): Set it.
3238         * c.opt (-imultilib): New option.
3239         * c-opts.c (imultilib): New.
3240         (c_common_handle_option): Handle -imultilib.
3241         (c_common_post_options): Likewise.
3242         * c-incpath.c (add_standard_paths, register_include_chains):
3243         Likewise.
3244         * c-incpath.h (register_include_chains): Add extra parameter.
3245         * gcc.c (do_spec_1): Generate -imultilib option.
3246         (The Specs Language): Update %I description.
3247         (process_command): Update copyright notice.
3248         * doc/cppopts.texi (-imultilib): Document.
3249         * doc/invoke.texi (-imultilib): Include in option summary.
3250         (%I): Update specs documentation.
3251
3252 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3253
3254         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
3255
3256 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
3257
3258         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
3259         label numbers.
3260
3261 2006-01-20  Richard Guenther  <rguenther@suse.de>
3262         Steven Bosscher <stevenb.gcc@gmail.com>
3263
3264         PR rtl-optimization/24626
3265         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
3266         EDGE_TRUE_VALUE if in RTL mode.
3267
3268         Revert
3269         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
3270         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
3271
3272 2006-01-20  Dirk Mueller  <dmueller@suse.com>
3273
3274         PR c++/5520
3275         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
3276         instead of a special NOP marker.
3277         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
3278         NOP marker handling.
3279         * c-common.h (empty_body_warning): Add forward declaration.
3280         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
3281         Now uses IS_EMPTY_STMT() instead of special NOP markers.
3282
3283 2006-01-20  Paul Brook  <paul@codesourcery.com>
3284
3285         * Makefile.in (lang_checks): Keep going if mkdir fails.
3286
3287 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3288
3289         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
3290         be able to clean out basic block when not necessary.
3291         (df_scan_free): Fixed to properly delete information if df is
3292         unused before calling df_finish.
3293         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
3294         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
3295         or comment typos.
3296         (df_bb_refs_delete): New function.
3297         (df_refs_delete): Moved per block code to df_bb_refs_delete.
3298         * df-core.c (df_set_blocks): Added code to properly clean out
3299         unused blocks if they are not part of the blocks to consider.
3300         Added additional null check.
3301         (df_compact_blocks): Added basic block parameter to free_bb_fun to
3302         be able to clean out basic block when not necessary
3303         * df.h (df_free_bb_function): Ditto.
3304         (df_bb_refs_delete): New function.
3305         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
3306         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
3307         basic block parameter to be able to clean out basic block when not
3308         necessary.
3309         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
3310         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
3311         Fixed to properly delete information if df is unused before
3312         calling df_finish.
3313
3314 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3315
3316         PR rtl-optimization/25799
3317         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
3318         Corrected confluence operator to remove bits from op2 before oring
3319         with op1 rather than removing bits from op1.
3320         (df_ru_transfer_function): Corrected test on wrong bitmap which
3321         caused infinite loop.  Both of these problems were introduced in
3322         the dataflow rewrite.
3323
3324 2006-01-19  DJ Delorie  <dj@redhat.com>
3325
3326         * reload1.c (find_reload_regs): Note the details of reload
3327         failures in the dump file.
3328         (spill_failure): Likewise.
3329
3330 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3331
3332         * loop-iv.c: Include df.h and hashtab.h.
3333         (enum iv_grd_result): New enum.
3334         (DF_REF_IV, DF_REF_IV_SET): New macros.
3335         (struct biv_entry): New.
3336         (df, bivs): New global variables.
3337         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
3338         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
3339         Removed.
3340         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
3341         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
3342         analyzed_for_bivness_p, record_biv): New functions.
3343         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
3344         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
3345         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
3346         UD chains.
3347         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
3348         analysed.
3349         (iv_number_of_iterations): Use new interface to iv analysis.
3350         * loop-unroll.c: Do not include varray.h.
3351         (analyze_iv_to_split_insn): Use new interface to iv
3352         analysis.
3353         * loop-unswitch.c (may_unswitch_on): Ditto.
3354         * df.c (df_bitmaps_free): Only work for bbs for that structures are
3355         allocated.
3356         (df_bb_modify): Realloc tables to the new index.
3357         (df_find_use): New function.
3358         * df.h (df_find_use): Declare.
3359         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
3360         outmode.
3361         * cfgloop.h (struct rtx_iv): Remove analysed field.
3362         (iv_get_reaching_def): Removed.
3363         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
3364         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
3365         (loop-iv.o): Add df.h and hashtab.h dependency.
3366         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
3367
3368 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
3369
3370         PR target/25668
3371         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
3372         Double TFmode.
3373         (__floatundisf, __floatundidf): Likewise.
3374         * libgcc2.h (IS_IBM_EXTENDED): Define.
3375
3376 2006-01-19  DJ Delorie  <dj@redhat.com>
3377
3378         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
3379
3380 2006-01-19  Paul Brook  <paul@codesourcery.com>
3381
3382         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
3383         as nothrow when unwinding tables are disabled.
3384
3385 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3386
3387         PR testsuite/25171
3388         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
3389         of bit-field" when in system header.
3390
3391 2006-01-19  DJ Delorie  <dj@redhat.com>
3392
3393         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
3394         the 16 bit shift limit of the m16c.
3395
3396 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
3397
3398         PR target/22099
3399         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
3400         * config/i386/i386.c (output_set_got): Output the label if we have one
3401         for the TARGET_DEEP_BRANCH_PREDICTION case.
3402
3403 2006-01-19  Jan Hubicka  <jh@suse.cz>
3404             H.J. Lu  <hongjiu.lu@intel.com>
3405             Evandro Menezes <evandro.menezes@amd.com>
3406
3407         * invoke.texi (generic): Document
3408         (i686) Update.
3409         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
3410         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
3411         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
3412         (x86_use_incdec, x86_pad_returns): New variables
3413         (TARGET_CPU_DEFAULT_generic): New constant
3414         (TARGET_CPU_DEFAULT_NAMES): Add generic.
3415         (enum processor_type): Add generic32 and generic64.
3416         * i386.md (cpu attribute): Add generic32/generic64
3417         (movhi splitter): Behave sanely when both partial_reg_dependency and
3418         partial_reg_stall are set.
3419         (K8 splitters): Enable for generic as well.
3420         * predicates.md (incdec_operand): Use TARGET_INCDEC
3421         (aligned_operand): Avoid memory mismatch stalls.
3422         * athlon.md: Enable for generic64, new patterns for 128bit moves.
3423         * ppro.md: Enable for generic32
3424         * i386.c (generic64_cost, generic32_cost): New.
3425         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
3426         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
3427         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
3428         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
3429         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
3430         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
3431         x86_partial_reg_dependency, x86_memory_mismatch_stall,
3432         x86_accumulate_outgoing_args, x86_prologue_using_move,
3433         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
3434         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
3435         Enable for generic.
3436         (x86_use_incdec, x86_pad_returns): New.
3437         (override_options): Add generic32 and generic64, translate "generic"
3438         to generic32/generic64 and "i686" to "generic32", refuse
3439         "generic32"/"generic64" as arch target.
3440         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
3441         (ix86_reorg): Honor PAD_RETURNS.
3442
3443 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
3444
3445         * tree-pretty-print.c (dump_generic_node): Handle
3446         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
3447         * cgraph.c (cgraph_expand_queue): Rename from
3448         cgraph_analyze_queue.  Update all users.
3449         * cgraphunit.c (cgraph_assemble_pending_functions): Process
3450         cgraph_expand_queue.
3451         (cgraph_expand_all_functions): Likewise.
3452         (cgraph_finalize_pending_functions): Remove.  Update callers.
3453
3454         * tree.h (OMP_DIRECTIVE_P): Define.
3455         (OMP_PARALLEL_FN): Define.
3456         (OMP_PARALLEL_DATA_ARG): Define.
3457         (OMP_SECTIONS_SECTIONS): Define.
3458         * tree-pass.h (pass_expand_omp): Declare.
3459         * omp-low.c (struct omp_region): Declare.
3460         (struct omp_context): Remove fields 'parallel_type',
3461         'parallel_start_ix' and 'parallel_start_additional_args'.
3462         Update all users.
3463         (struct omp_for_data): Rename from struct expand_omp_for_data.
3464         (omp_regions): New static variable.
3465         (root_omp_region): New static variable.
3466         (find_omp_clause): Make static.
3467         (is_in_combined_parallel_ctx): Remove.
3468         (is_combined_parallel): New.
3469         (extract_omp_for_data): Move earlier in the file.
3470         (workshare_safe_to_combine_p): New.
3471         (get_ws_args_for): New.
3472         (determine_parallel_type): Move earlier in the file.
3473         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
3474         child function.
3475         (omp_copy_decl): Likewise.
3476         (create_omp_child_function): Likewise.
3477         (lookup_omp_region): New.
3478         (dump_omp_region): New.
3479         (debug_omp_region): New.
3480         (debug_all_omp_regions): New.
3481         (new_omp_region): New.
3482         (scan_omp_parallel): If parallel_nesting_level > 1, the
3483         directive is nested within another parallel directive.
3484         Set OMP_PARALLEL_FN.
3485         (scan_omp_for): Do not try to handle combined parallel+for
3486         cases.
3487         Remove FIXME comment.
3488         (scan_omp_nested): Remove.
3489         (scan_omp_1): Do not call scan_omp_nested when
3490         parallel_nesting_level is > 1.
3491         Do not change the DECL_CONTEXT of local variables found.
3492         (lookup_decl_in_outer_ctx): New.
3493         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
3494         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
3495         (lower_reduction_clauses): Rename from expand_reduction_clauses.
3496         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
3497         If CTX is nested, lookup VAR in the outer context when
3498         building copy assignment.
3499         (lower_send_clauses): Rename from expand_send_clauses.
3500         If CTX is nested, lookup VAR in the outer context when
3501         building copy assignments.
3502         (lower_send_shared_vars): Rename from expand_send_shared_vars.
3503         If CTX is nested, lookup VAR in the outer context when
3504         building copy assignments.
3505         (expand_parallel_call): Rename from build_parallel_call.
3506         Handle combined parallel+workshare cases.
3507         Re-implement to emit code into the CFG.
3508         (list2chain): New.
3509         (expand_omp_parallel): Re-implement to emit code into the CFG.
3510         Call move_sese_region_to_fn to outline the sub-graph
3511         containing the parallel region.
3512         (expand_omp_for_1): Remove.
3513         (expand_omp_for_generic): Re-implement to emit code into the
3514         CFG.
3515         (expand_omp_for_static_nochunk): Likewise.
3516         (expand_omp_for_static_chunk): Likewise.
3517         (expand_omp_for): Likewise.
3518         (expand_omp_sections): Likewise.
3519         (remove_exit_barriers): New.
3520         (expand_omp_synch): New.
3521         (expand_omp): New.
3522         (build_omp_regions_1): New.
3523         (build_omp_regions): New.
3524         (execute_expand_omp): New.
3525         (gate_expand_omp): New.
3526         (pass_expand_omp): Define.
3527         (lower_omp_sections): Rename from expand_omp_sections.
3528         Set OMP_SECTIONS_SECTIONS.
3529         (lower_omp_single_simple): Rename from expand_omp_single_simple.
3530         (lower_omp_single_copy): Rename from expand_omp_single_copy.
3531         (lower_omp_single): Rename from expand_omp_simple.
3532         (lower_omp_master): Rename from expand_omp_master.
3533         (lower_omp_ordered): Rename from expand_omp_ordered.
3534         (lower_omp_critical): Rename from expand_omp_critical.
3535         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
3536         (lower_omp_for): Re-implement.
3537         (lower_omp_parallel): Re-implement.
3538         (lower_regimplify): Rename from expand_regimplify.
3539         (lower_omp_1): Rename from expand_omp_1.
3540         If there are syntax errors in the program, replace every
3541         OpenMP directive with NOP.
3542         Call lower_omp_* instead of expand_omp_*.
3543         (lower_omp): Rename from expand_omp.
3544
3545         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
3546         * tree-gimple.h (enum omp_parallel_type): Remove.
3547         (gimple_boolify): Declare extern.
3548         (find_omp_clause, determine_parallel_type): Remove.
3549
3550         * gimple-low.c (lower_omp_directive): New.
3551         (lower_stmt): Call it.
3552         (record_vars_into): Move from ...
3553         (record_vars): ... here.
3554         Call record_vars_into with current_function_decl.
3555
3556         * gimplify.c (struct gimplify_ctx): Remove fields
3557         combined_pre_p and combined_ctxp.  Update users.
3558         (get_formal_tmp_var): Add documentation.
3559         (gimple_boolify): Make extern.
3560         (gimplify_expr_in_ctx): Remove.  Update callers.
3561         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
3562         will always be a BIND_EXPR.
3563         (gimplify_expr): Handle OMP_RETURN_EXPR.
3564         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
3565         (OMP_PARALLEL): Add 3 operands.
3566         (OMP_SECTIONS): Add 1 operand.
3567         (OMP_RETURN_EXPR): Define.
3568
3569         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
3570         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
3571         * tree-iterator.c (alloc_stmt_list): Assert that we are not
3572         creating a circular free list.
3573         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
3574
3575         * tree-flow.h (move_sese_region_to_fn): Declare.
3576         (record_vars_into): Declare.
3577         * tree-cfg.c (make_omp_sections_edges): New.
3578         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
3579         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
3580         OMP_SECTIONS and OMP_SECTION.
3581         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
3582         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
3583         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
3584         (gather_blocks_in_sese_region): New.
3585         (struct move_stmt_d): Declare.
3586         (move_stmt_r): New.
3587         (move_block_to_fn): New.
3588         (move_sese_region_to_fn): New.
3589
3590         * passes.c (init_optimization_passes): Schedule
3591         pass_expand_omp after pass_init_datastructures.
3592
3593         * tree-ssa-operands.c (get_expr_operands): Handle
3594         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
3595         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
3596
3597 2006-01-19  Jeff Law  <law@redhat.com>
3598
3599         * tree-vrp.c (extract_range_from_assert): Refine the result range
3600         if the variable referenced by the ASSERT_EXPR has a range and
3601         either the tentative result range or the previous range is a
3602         VR_ANTI_RANGE.
3603
3604 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3605
3606         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
3607
3608 2006-01-19  Jan Hubicka  <jh@suse.cz>
3609
3610         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
3611
3612 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
3613
3614         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
3615         (expand_compound_operation, expand_field_assignment): Fail if the
3616         bit lengths of an extract operation are out of range.
3617         (make_extraction): Compute wanted_inner_mode based on the position
3618         and length of the extraction.  Make it extraction_mode for non-constant
3619         positions, and do not modify offset in that case.  When generating a
3620         new MEM, use a mode that can hold the extraction while keeping correct
3621         alignment.  Remove code that supported MEMs wrapped by USEs.
3622         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
3623
3624 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
3625
3626         * config/s390/s390.md ("Y", "y"): New mode attribute.
3627         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
3628         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
3629         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
3630         "*addsi3_imm_cc", "*addsi3_carry1_cc",
3631         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
3632         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
3633         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
3634         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
3635         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
3636         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
3637         "addsi3", "subsi3"): Insn patterns removed.
3638         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
3639         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
3640         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
3641         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
3642         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
3643         "*sub<mode>3_cconly2"): New insn patterns.
3644         ("addsi3", "subsi3"): New expanders.
3645
3646 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
3647
3648         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
3649         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
3650         existing STMT_VINFO_VECTYPE if available.
3651         (vect_mark_relevant): Add special handling for stmts that are
3652         marked as STMT_VINFO_IN_PATTERN_P.
3653         (vect_analyze_loop): Call vect_pattern_recog.
3654         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
3655         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
3656         stmt_info.
3657         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
3658         (vect_recog_func_ptr): New function-pointer type.
3659         * tree-vect-patterns.c: New file.
3660         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
3661         (vect_recog_dot_prod_pattern, vect_pattern_recog):
3662         (vect_pattern_recog_1): New functions.
3663         (vect_pattern_recog_funcs): New array of function pointers.
3664
3665         * tree-vectorizer.h (ternary_op): New enum value.
3666         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
3667         declaration. Revised documentation. Removed redundant dump prints.
3668         Removed redundant argument. Added support for reduction patterns.
3669         (vectorizable_reduction): Added support for reduction patterns.
3670         (vect_transform_stmt): Added support for patterns.
3671
3672         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
3673         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
3674         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
3675         (expand_widen_pattern_expr): New function.
3676         (init_optabs): Initialize new optabs udot_prod_optab,
3677         sdot_prod_optab.
3678         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
3679         (sdot_prod_optab, udot_prod_optab): Define new optabs.
3680         (expand_widen_pattern_expr): New function declaration.
3681         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
3682         tree-codes.
3683         * tree-inline.c (estimate_num_insns_1): Added cases for new
3684         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3685         * tree-pretty-print.c (dump_generic_node): Likewise.
3686         (op_prio): Likewise.
3687         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3688         * tree-ssa-operands.c (get_expr_operands): Added case for
3689         DOT_PROD_EXPR.
3690         * tree-vect-patterns.c (widened_name_p): New function.
3691         (vect_recog_dot_prod_pattern): Added function implementation.
3692         * tree-vect-transform.c (get_initial_def_for_reduction): Added
3693         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
3694         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
3695         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
3696
3697         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
3698         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
3699         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
3700         (init_optabs): Initialize new optabs widen_ssum_optab,
3701         widen_usum_optab.
3702         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
3703         (widen_ssum_optab, widen_usum_optab): Define new optabs.
3704         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
3705         use instead of type of def.
3706         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
3707         function implementation.
3708         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
3709         widen_ssumv8hi): New.
3710
3711         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
3712         patterns.
3713
3714 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3715
3716         PR c/25805
3717         * c-decl.c (add_flexible_array_elts_to_size): New function.
3718         (finish_decl): Use it.
3719
3720 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
3721
3722         * diagnostic.h: Include options.h.
3723         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
3724         dependancies for diagnostic.h.
3725         * Makefile.in (DIAGNOSTIC_H): Add options.h.
3726
3727 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
3728
3729         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
3730         (ssa_ro_call_cache_valid): Ditto.
3731         * tree-ssa-alias.c (sort_tags_by_id): New function.
3732         (init_transitive_clobber_worklist): Ditto.
3733         (add_to_worklist): Ditto.
3734         (mark_aliases_call_clobbered): Ditto.
3735         (compute_tag_properties): Ditto.
3736         (set_initial_properties): Ditto.
3737         (compute_call_clobbered): Ditto.
3738         (compute_may_aliases):  Call compute_call_clobbered and grouping.
3739         (compute_flow_sensitive_aliasing): Remove clobbering related code.
3740         (compute_flow_insensitive_aliasing): Grouping now happens in our
3741         caller.
3742         (setup_pointers_and_addressables): Remove clobbering related code.
3743         (add_may_alias): Ditto.
3744         (replace_may_alias): Ditto.
3745         (get_nmt_for): Ditto.
3746         (create_global_var):
3747         (is_escape_site): Return an escape_type enumeration.
3748         * tree-flow-inline.h (is_call_clobbered):  Global var does not
3749         imply call clobbered.
3750         (mark_call_clobbered): Take a reason for marking this. Remove
3751         marking of globalness, and cache invalidation.
3752         (clear_call_clobbered): Remove cache invalidation code.
3753         * tree-dfa.c (dump_variable): If details is on, dump the reason
3754         for escaping.
3755         * tree-outof-ssa.c (create_temp): Copy escape mask from original
3756         variable.
3757         * tree-flow.h (struct ptr_info_def): Add escape mask member.
3758         (struct var_ann_d): Ditto.
3759         (enum escape_type): New.
3760         (mark_call_clobbered): Adjust prototype.
3761         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
3762         are never call clobbered.
3763         Record reasons for escaping.
3764         * tree-ssa-structalias.h (is_escape_site): Update prototype.
3765         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
3766         (ssa_ro_call_cache_valid): Ditto.
3767         (clobbered_v_may_defs): Ditto.
3768         (clobbered_vuses): Ditto.
3769         (ro_call_vuses): Ditto.
3770         (clobber_stats): New.
3771         (init_ssa_operands): Zero out clobber stats.
3772         (fini_ssa_operands): Print out clobber stats.
3773         (get_call_expr_operands): Pass callee fndecl to
3774         add_call_read_ops).
3775         (add_call_clobber_ops): Remove use of cache.
3776         Add use of PURE_CONST information.
3777         (add_call_read_ops): Remove use of cache.
3778         Add use of static not_read information.
3779
3780 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
3781
3782         Introduce TLS descriptors for i386 and x86_64.
3783         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
3784         (TARGET_ANY_GNU_TLS): New macro.
3785         (enum tls_dialect): Added TLS_DIALECT_GNU2.
3786         (struct machine_function): Add tls_descriptor_call_expanded_p.
3787         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
3788         (ix86_current_function_calls_tls_descriptor): Likewise.
3789         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
3790         (override_options): Introduce gnu2 tls dialect.
3791         (ix86_frame_pointer_required): Functions containing TLSCALLs are
3792         not leaves.
3793         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
3794         Likewise.
3795         (legitimize_tls_address): Adjust logic for GNU2 TLS.
3796         (ix86_init_machine_status): Initialize new field.
3797         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
3798         (ix86_tls_module_base): New.
3799         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
3800         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
3801         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
3802         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
3803         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
3804         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
3805         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
3806         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
3807         * config/i386/predicates.md (tls_modbase_operand): New.
3808         (tp_or_register_operand): New.
3809
3810 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
3811
3812         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
3813         (look_for_address_of): Ditto.
3814         (ipa_init): Walk the function decls.
3815         (static_execute): Don't set readonly on FUNCTION_DECL's.
3816
3817 2006-01-18  Roger Sayle  <roger@eyesopen.com>
3818
3819         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
3820         for shifts where the source and destination registers are different.
3821
3822 2006-01-18  Paul Brook  <paul@codesourcery.com>
3823
3824         Merge from csl-arm-branch.
3825         2005-03-14  Julian Brown  <julian@codesourcery.com>
3826         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
3827         (aeabi_llsl): Likewise.
3828         (ashrdi3): Likewise.
3829         (aeabi_lasr): Likewise.
3830         (lshrdi3): Likewise.
3831         (aeabi_llsr): Likewise.
3832         2005-03-10  Julian Brown  <julian@codesourcery.com>
3833         * config.gcc: Disable shared libgcc for SymbianOS.
3834         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
3835
3836 2006-01-18  DJ Delorie  <dj@redhat.com>
3837
3838         * c-pragma.c (handle_pragma_diagnostic): New.
3839         (init_pragma): Register it.
3840         * doc/extend.texi: Document it.
3841
3842         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
3843         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
3844         (diagnostic_context): Add classify_diagnostic[].
3845         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
3846         as errors if they're overridden to DK_WARNING.
3847         (diagnostic_initialize): Initialize classify_diagnostic[].
3848         (diagnostic_set_kind_override): New.
3849         (diagnostic_report_diagnostic): Check for kind changes.
3850         * opts.c (common_handle_option): Take lang_mask.  Update callers.
3851         Handle OPT_Werror_.
3852         * common.opt (Werror=): New.
3853         * doc/invoke.texi: Document -Werror=*
3854
3855 2006-01-18  Jeff Law  <law@redhat.com>
3856
3857         * tree-vrp.c (test_for_singularity): Correct test for new
3858         min limit.  Use operand_equal_p rather than pointer equality
3859         for testing if new min/max values are equal.
3860
3861         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3862         using range information until after propagation and folding.
3863
3864 2006-01-18  Richard Henderson  <rth@redhat.com>
3865             Aldy Hernandez  <aldyh@redhat.com>
3866             Jakub Jelinek  <jakub@redhat.com>
3867             Diego Novillo  <dnovillo@redhat.com>
3868
3869         * omp-low.c: New file.
3870         * c-omp.c: New file.
3871
3872 2006-01-18  Richard Henderson  <rth@redhat.com>
3873             Jakub Jelinek  <jakub@redhat.com>
3874             Diego Novillo  <dnovillo@redhat.com>
3875
3876         * doc/invoke.texi: Document -fopenmp.
3877         * tree-dump.h (debug_function): Declare.
3878         * hooks.c (hook_bool_tree_bool_false): New function.
3879         (hook_tree_tree_null): Remove.
3880         (hook_tree_tree_tree_null): New.
3881         * hooks.h: Update to match.
3882         * tree-pretty-print.c (debug_tree_chain): New.
3883         (print_generic_expr): Handle TDF_CHAIN.
3884         (dump_generic_node): Handle BLOCK.
3885         Do not abort with incomplete SWITCH_EXPRs.
3886         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3887         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3888         print space after directive name.
3889         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3890         Handle OMP_MASTER and OMP_ORDERED.
3891         Handle printing of OMP_BODY just in one place, goto
3892         dump_omp_body in the rest of OMP_* nodes that have
3893         OMP_BODY.
3894         Don't handle clause nodes here.  Update omp statements to
3895         use dump_omp_clauses.
3896         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3897         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3898         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3899         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3900         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3901         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3902         Adjust output for GOMP_PARALLEL.
3903         (dump_omp_clauses): New.
3904         (print_declaration): Dump DECL_VALUE_EXPR.
3905         (op_symbol_1): Split out of op_symbol.
3906         (dumping_stmts): Remove.  Update all users.
3907         * cgraph.c (cgraph_analyze_queue): New.
3908         (cgraph_add_new_function): New.
3909         * cgraph.h (cgraph_analyze_queue): Declare.
3910         (cgraph_add_new_function): Declare.
3911         (cgraph_lower_function): Remove.
3912         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3913         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3914         and TYPE_P nodes in its default clause.
3915         (empty_body_p): New.
3916         (tree_range_check_failed): New.
3917         (build5_stat): New.
3918         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3919         OMP_CLAUSE_REDUCTION_MERGE,
3920         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3921         OMP_CLAUSE_PRIVATE_DEBUG,
3922         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3923         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3924         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3925         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3926         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3927         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3928         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3929         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3930         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3931         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3932         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3933         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3934         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3935         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3936         (TREE_RANGE_CHECK): New.
3937         (empty_body_p): Declare.
3938         (enum omp_clause_default_kind): New.
3939         (build_string_literal): Declare.
3940         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3941         (build5_stat, build5): Declare.
3942         * tree-pass.h (TDF_CHAIN): Define.
3943         * tree-pass.h (PROP_gimple_lomp): Define.
3944         (pass_lower_omp): Declare.
3945         * diagnostic.h (debug_tree_chain): Declare.
3946         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3947         mode_for_size.
3948         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3949         * builtins.c (build_string_literal): Make extern.
3950         * gcc.c (include_spec_function): New.
3951         (static_spec_functions): Add it.
3952         (main): Move load of libgomp.spec ...
3953         (LINK_COMMAND_SPEC): ... here.
3954         (link_gomp_spec): New.
3955         (static_specs): Include it.
3956         (LINK_COMMAND_SPEC): Add link_gomp.
3957         (GOMP_SELF_SPECS): New.
3958         (driver_