OSDN Git Service

2b327b91115b2ccfb4f3de3f15a70442612a780d
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
2
3         * configure.ac: Add --with{,out}-long-double-128 configure option.
4         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
5         * configure: Rebuilt.
6         * config.in: Rebuilt.
7         * doc/install.texi (Options specification): Document
8         --with-long-double-128.
9
10         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
11         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
12         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
13         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
14
15 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
16
17         * config/s390/s390.c (override_options): Handle
18         TARGET_DEFAULT_LONG_DOUBLE_128.
19
20         * config/alpha/alpha.c (override_options): Handle
21         TARGET_DEFAULT_LONG_DOUBLE_128.
22
23         * config/sparc/sparc.c (sparc_override_options): Handle
24         TARGET_DEFAULT_LONG_DOUBLE_128.
25
26 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
27
28         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
29         (real-install-headers-tar, real-install-headers-cpio)
30         (real-install-headers-cp): New targets.
31
32 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
33
34         * tree.h (variable_section): Delete.
35         * varasm.c (variable_section): Delete.
36
37 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
38
39         * install.texi: Add notes on install.texi2html.
40         (Building in parallel): Do not use footnotes.
41
42 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
43
44         PR libgomp/26234
45         * doc/install.texi (Configuration): Document --disable-libgomp.
46
47 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
48
49         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
50
51 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
52
53         * config/i386/sse.md (vec_extractv2df_1_sse): New.
54         (vec_extractv2df_0_sse): New.
55
56 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
57
58         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
59         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
60         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
61         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
62         to the result of the expression.
63         (def_cfa_1): Adjust.
64         (frame_pointer_cfa_offset): Rename to...
65         (frame_pointer_fb_offset): ... this.  Adjust all uses.
66         (convert_cfa_to_loc_list): Rename to...
67         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
68         Pass it on to build_cfa_loc.
69         (compute_frame_pointer_to_cfa_displacement): Rename to...
70         (compute_frame_pointer_to_fb_displacement): ... this.  New
71         offset parameter.  Use it in computation.
72         (gen_subprogram_die): Compute cfa_fb_offset with the new
73         macro, and use it to compute the fb loc list and the
74         displacement.
75
76 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
77
78         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
79         replaced with register_operand.
80         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
81         non-DREG is expensive.
82         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
83         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
84         involving memory.
85
86 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
87
88         * doc/install.texi2html: Use set -e.
89
90 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
91
92         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
93         (ASM_OUTPUT_SHARED_LOCAL): Delete.
94         * doc/invoke.texi (-fshared-data): Delete.
95         * common.opt (fshared-data): Delete.
96         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
97         (assemble_static_space): Remove #if 0 code.
98         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
99         (ASM_OUTPUT_SHARED_LOCAL): Poison.
100         * config/cris/cris.h: Remove FIXME.
101
102 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
103
104         * doc/sourcebuild.texi (Front End Directory): No more double-colon
105         hooks.
106
107 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
108
109         PR middle-end/26379
110         * combine.c (simplify_shift_const_1): Disable nested shifts
111         optimization for vector shifts.
112
113 2006-02-20  Roger Sayle  <roger@eyesopen.com>
114
115         PR tree-optimization/26361
116         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
117         of unsigned integer types.
118
119 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
120
121         * tree-chrec.c (eq_evolutions_p): New.
122         * tree-chrec.h (eq_evolutions_p): Declared.
123         * tree-data-ref.c: Fix formatting.
124         (datadep_stats, dependence_stats): New.
125         (gcd): Moved...
126         (print_direction_vector): New.
127         (dump_data_dependence_relation): Use print_direction_vector.
128         (object_analysis, create_data_ref): Handle COMPONENT_REF.
129         (compute_subscript_distance): Static.
130         (initialize_data_dependence_relation): Static.  Get the number
131         of loops surrounding the references from the callers, and initialize
132         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
133         base_object_differ_p analyzers.
134         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine, 
135         compute_overlap_steps_for_affine_1_2,
136         analyze_subscript_affine_affine): Count the classified dependences.
137         Print a message when a test failed.
138         (can_use_analyze_subscript_affine_affine): New. 
139         (analyze_siv_subscript): Compute the data dependences on symbolic
140         scevs that verify can_use_analyze_subscript_affine_affine.
141         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
142         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
143         Handle symbolic scevs.
144         (analyze_overlapping_iterations): Let symbolic affine scevs to be
145         analyzed.
146         (subscript_dependence_tester): Moved...
147         (build_classic_dist_vector, build_classic_dir_vector): Don't use 
148         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
149         DDR_SIZE_VECT instead of getting it in parameter.
150         (subscript_dependence_tester): ... here.  Take as a parameter 
151         loop_nest_depth.  Call build_classic_dist_vector and
152         build_classic_dir_vector.
153         (compute_affine_dependence): Update subscript_dependence_tester 
154         parameters.  Update datadep_stats counters.  Call 
155         compute_subscript_distance.
156         (compute_self_dependence): Save the dist and dir vectors.  Call 
157         compute_subscript_distance.
158         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
159         (compute_all_dependences): Reorder parameters as they were before
160         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
161         compute_subscript_distance.  Update the use of 
162         compute_affine_dependence and initialize_data_dependence_relation.
163         (find_data_references_in_loop): Handle COMPONENT_REF.
164         (compute_data_dependences_for_loop): Initialize dependence_stats.
165         Don't call build_classic_dist_vector and build_classic_dir_vector.
166         Update the parameters of initialize_data_dependence_relation and 
167         compute_all_dependences.  Print the statistics from datadep_stats.
168         (analyze_all_data_dependences): Static.  Not used until the pass for
169         checking the data dependences is contributed.
170         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
171         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
172         (initialize_data_dependence_relation, compute_affine_dependence, 
173         analyze_all_data_dependences, compute_subscript_distance): Removed.
174         (print_direction_vector): New.
175         * lambda.h (gcd): ... here.
176         (lambda_vector_gcd): Moved here from gcd_vector.
177         * lambda-code.c (gcd, gcd_vector): Removed.
178         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
179         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
180
181 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
182
183         * ipa-type-escape.c: Tidy some comments and white space.
184         * tree-ssa-operands.c: Likewise.
185
186 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
187
188         PR tree-opt/25879
189         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
190         (dump_decl_name): Do not walk the decl tree chains.
191         * tree-pass.h (TDF_CHAIN): Remove.
192
193 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
194
195         * Makefile.in (C): Remove
196         (PROTO): Remove
197         (.PHONY): Remove C and PROTO
198
199 2006-02-20  Roger Sayle  <roger@eyesopen.com>
200
201         PR middle-end/26236
202         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
203         deprecated CHAR_TYPE tree code.
204
205 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
206
207         * configure.ac (target_list): Add install-info, dvi, html.
208         * configure: Regenerate.
209
210         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
211         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
212         treelang/Make-lang.in: Do not use double-colon rules.
213
214 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
215
216         * tree.h (struct tree_memory_tag): Add is_used_alone member.
217         (TMT_USED_ALONE): New macro.
218         * tree-pass.h (PROP_tmt_usage): New property.
219         (TODO_update_tmt_usage): New todo.
220         * tree-ssa-alias.c (updating_used_alone): New variable.
221         (recalculate_used_alone): New function.   
222         (compute_may_aliases): Set updating_used_alone, call
223         recalculate_used_alone. 
224         * tree-sra.c (pass_sra): Note that this pass destroys
225         PROP_tmt_usage, and add TODO_update_tmt_usage.
226         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
227         * tree-flow.h (updating_used_alone): Prototype.
228         (recalculate_used_alone): Ditto.
229         * passes.c (execute_todo): Add code to set updating_used_alone,
230         and call recalculate.
231         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
232         for clobber if used alone, and add assert to verify used_alone
233         status.
234         
235 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
236
237         * config/s390/s390.c (legitimize_pic_address): Assertions checking
238         for non tls symbols added.
239         (legitimize_address): Do nothing for PLUS expressions if one of the
240         addends is a tls symbol reference.
241
242 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
243
244         PR bootstrap/25476
245
246         * Makefile.in (LDFLAGS): Define from autoconf substitution.
247
248         * Makefile.in (BOOTSTRAPPING): New.
249         (quickstrap): New definition if BOOTSTRAPPING=yes.
250
251         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
252         * configure.ac: Substitute all_selected_languages with the languages
253         that were configured.  For all the other variables except
254         lang_specs_files, include all the languages in the tree.
255         * configure: Regenerate.
256         
257         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
258         if there is one.  Run the commands to run fixincludes in the same
259         subshell.
260
261         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
262         * doc/install.texi: Document exact conventions for searching target tools.
263         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
264         something more about building an Ada cross-compiler.  Don't list GNU Make
265         requirements which affect all platforms.
266
267 2006-02-19  Roger Sayle  <roger@eyesopen.com>
268
269         PR middle-end/19543
270         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
271         only equivalent if the have both the same mode and precision.
272
273 2006-02-20  Ben Elliston  <bje@au.ibm.com>
274
275         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
276
277 2006-02-19  Roger Sayle  <roger@eyesopen.com>
278             Steven Bosscher  <stevenb.gcc@gmail.com>
279
280         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
281         constant pool references to identify stack mode constants.
282         * rtlanal.c (constant_pool_constant_p): New predicate to check
283         whether operand is a floating point constant in the pool.
284         * rtl.h (constant_pool_constant_p): Prototype here.
285         * loop.c (scan_loop): Avoid hoisting constants from the constant
286         pool on STACK_REGS targets.
287         (load_mems): Likewise.
288         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
289         loads into x87 registers expensive in terms of register pressure.
290
291 2006-02-19  Roger Sayle  <roger@eyesopen.com>
292
293         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
294         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
295
296 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
297
298         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
299         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
300
301 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
302
303         * doc/invoke.texi: Document -fipa-pta.
304         * common.opt: Add ipa-pta option.
305         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
306         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
307         (do_ds_constraint): Ditto.
308         (get_constraint_for): Only add to referenced_vars if
309         referenced_vars exists.
310         (insert_into_field_list): Rewrite to do this unsorted.
311         (insert_into_field_list_sorted): Rename old insert_into_field_list
312         to this.
313         (create_function_info_for): Use insert_into_field_list_sorted.
314         (create_variable_info_for): Rewrite so it uses unsorted version,
315         since the field list is sorted.
316         (intra_create_variable_infos): Only add to referenced_vars if
317         referenced_vars exists.
318         (ipa_pta_execute): Init heapvars, and delete when done.
319         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
320
321 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
322
323         * doc/install.texi: Add missing `@samp'.
324
325 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
326
327         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
328         Use the arguments.
329
330 2006-02-18  Mark Wielaard  <mark@klomp.org>
331
332         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
333         who added new 4.1 features, bug fixes and integration support.
334
335 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
336
337         PR target/26350
338         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
339         MEM for ABI_V4 pic.
340
341 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
342
343         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
344         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
345         (copy_insn_1): Likewise.  Don't copy each field individually.
346         Reindent.
347         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
348         of RTX_SIZE.
349         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
350         * rtl.c (rtx_size): Rename variable to...
351         (rtx_code_size): ...this.
352         (rtx_size): New function.
353         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
354         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
355         Reindent.
356         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
357         * rtl.h (rtx_code_size): New variable.
358         (rtx_size): Change from a variable to a function.
359         (RTX_SIZE): Rename to...
360         (RTX_CODE_SIZE): ...this.
361
362         PR target/9703
363         PR tree-optimization/17106
364         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
365         (Anchored Addresses): New section.
366         * doc/invoke.texi (-fsection-anchors): Document.
367         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
368         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
369         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
370         * hooks.c (hook_bool_mode_rtx_false): New function.
371         * hooks.h (hook_bool_mode_rtx_false): Declare.
372         * gengtype.c (create_optional_field): New function.
373         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
374         SYMBOL_REF_IN_BLOCK_P is true.
375         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
376         (min_anchor_offset, max_anchor_offset): Likewise.
377         (use_anchors_for_symbol_p): New hook.
378         * toplev.c (compile_file): Call output_object_blocks.
379         (target_supports_section_anchors_p): New function.
380         (process_options): Check that -fsection-anchors is only used on
381         targets that support it and when -funit-at-a-time is in effect.
382         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
383         if the decl doesn't have one.
384         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
385         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
386         of force_const_mem through use_anchored_address.
387         (expand_expr_constant): New function.
388         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
389         calling expand_expr for INDIRECT_REF.
390         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
391         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
392         * expr.h (use_anchored_address): Declare.
393         * loop-unroll.c: Don't declare rtx vectors here.
394         * explow.c: Include output.h.
395         (validize_mem): Call use_anchored_address.
396         (use_anchored_address): New function.
397         * common.opt (-fsection-anchors): New switch.
398         * varasm.c (object_block_htab, anchor_labelno): New variables.
399         (hash_section, object_block_entry_eq, object_block_entry_hash)
400         (use_object_blocks_p, get_block_for_section, create_block_symbol)
401         (use_blocks_for_decl_p, change_symbol_section): New functions.
402         (get_variable_section): New function, split out from assemble_variable.
403         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
404         use_blocks_for_decl_p say so.  Use change_symbol_section if the
405         symbol has already been created.
406         (assemble_variable_contents): New function, split out from...
407         (assemble_variable): ...here.  Don't output any code for
408         block symbols; just pass them to place_block_symbol.
409         Use get_variable_section and assemble_variable_contents.
410         (get_constant_alignment, get_constant_section, get_constant_size): New
411         functions, split from output_constant_def_contents.
412         (build_constant_desc): Create a block symbol if use_object_blocks_p
413         says so.  Or into SYMBOL_REF_FLAGS.
414         (assemble_constant_contents): New function, split from...
415         (output_constant_def_contents): ...here.  Don't output any code
416         for block symbols; just pass them to place_section_symbol.
417         Use get_constant_section and get_constant_alignment.
418         (force_const_mem): Create a block symbol if use_object_blocks_p and
419         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
420         (output_constant_pool_1): Add an explicit alignment argument.
421         Don't switch sections here.
422         (output_constant_pool): Adjust call to output_constant_pool_1.
423         Switch sections here instead.  Don't output anything for block symbols;
424         just pass them to place_block_symbol.
425         (init_varasm_once): Initialize object_block_htab.
426         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
427         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
428         (place_block_symbol, get_section_anchor, output_object_block)
429         (output_object_block_htab, output_object_blocks): New functions.
430         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
431         (TARGET_ASM_OUT): Include it.
432         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
433         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
434         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
435         (TARGET_INITIALIZER): Include them.
436         * rtl.c (rtl_check_failed_block_symbol): New function.
437         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
438         (block_symbol, object_block): New structures.
439         (rtx_def): Add a block_symbol field to the union.
440         (BLOCK_SYMBOL_CHECK): New macro.
441         (rtl_check_failed_block_symbol): Declare.
442         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
443         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
444         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
445         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
446         * output.h (output_section_symbols): Declare.
447         (object_block): Name structure.
448         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
449         (default_use_anchors_for_symbol_p): Declare.
450         * Makefile.in (RTL_BASE_H): Add vec.h.
451         (explow.o): Depend on output.h.
452         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
453         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
454         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
455         (rs6000_use_blocks_for_constant_p): New function.
456
457 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
458
459         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
460
461 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
462
463         PR tree-opt/25680
464         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
465         IMAGPART_EXPR.
466
467 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
468
469         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
470         is_aliased.
471         Update all users.
472
473 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
474
475         PR middle-end/26334
476         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
477         instead of DECL_REGISTER.
478
479 2006-02-18  Olivier Hainque  <hainque@adacore.com>
480
481         PR ada/13408
482         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
483
484 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
485
486         PR target/24837
487         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
488         * opth-gen.awk: Handle Var and InverseMask together.
489         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
490         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
491         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
492         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
493         used together.
494         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
495         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
496         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
497         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
498         LINUX_DYNAMIC_LINKER): Define.
499         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
500         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
501         TARGET_GLIBC.
502         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
503         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
504         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
505         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
506         (TARGET_C99_FUNCTIONS): Don't define.
507         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
508         GLIBC_DYNAMIC_LINKER.
509         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
510         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
511         GLIBC_DYNAMIC_LINKER64): Define.
512         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
513         LINUX_DYNAMIC_LINKER64.
514         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
515         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
516         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
517         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
518         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
519         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
520         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
521         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
522         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
523         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
524         and LINUX_DYNAMIC_LINKER32.
525         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
526         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
527         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
528         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
529         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
530         TARGET_GLIBC.
531         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
532         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
533         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
534         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
535         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
536         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
537         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
538         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
539         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
540         LINUX_DYNAMIC_LINKER): Define.
541         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
542         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
543         GLIBC_DYNAMIC_LINKER64): Define.
544         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
545         LINUX_DYNAMIC_LINKER64.
546         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
547         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
548         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
549         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
550         LINUX_DYNAMIC_LINKER): Define.
551         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
552         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
553         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
554         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
555         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
556         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
557         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
558         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
559         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
560         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
561         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
562         * doc/invoke.texi (-muclibc): Remove caveat about supported
563         targets.
564
565 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
566
567         * doc/cpp.texi (__TIMESTAMP__): Document.
568
569 2006-02-17  Roger Sayle  <roger@eyesopen.com>
570
571         PR middle-end/25600
572         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
573         C is one less than the width of X (and related transformations).
574         * simplify_rtx.c (simplify_unary_operation_1): Transform 
575         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
576         depending on STORE_FLAG_VALUE, were C is one less then the
577         width of X.
578
579 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
580
581         Fix PR tree-optimization/26341
582         * tree-ssa-operands.c (add_virtual_operand): Remove assert 
583         about NAME_MEMORY_TAG's.
584
585 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
586
587         PR target/26255
588         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
589         with hardware float support, and software float support.  Add fcpy
590         alternative to hardware patterns.  Add alternatives to copy between
591         general and floating-point registers to the 32-bit pattern.
592         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
593         secondary reload to load a QI or HI mode constant into a floating
594         point register. 
595         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
596         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
597
598 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
599
600         PR target/26272
601         * config/rs6000/darwin.md (load_macho_picbase_si): Add
602         pc to the pattern.
603         (load_macho_picbase_di): Likewise.
604
605 2006-02-16  Jeff Law  <law@redhat.com>
606
607         * tree-vrp.c (set_value_range_to_nonnegative): New function.
608         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
609         (ssa_name_nonzero_p): Likewise.
610         (get_value_range): Return NULL if VRP is not running.
611         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
612         VRP routines do not discover a range.
613         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
614         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
615         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
616         (tree_expr_nonnegative_p): Similarly.
617         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
618         (restore_nonzero_vars_to_original_value): Remove.
619         (unsafe_associative_fp_binop): Remove.
620         (tree_ssa_dominator_optimize): Remove initialization and
621         finalization of nonzero_vars and nonzero_vars_stack.
622         (dom_opt_initialize_block): No longer push marker on
623         nonzero_vars_stack.
624         (dom_opt_finalize_block): No longer call
625         restore_nonzero_vars_to_original_value.
626         (record_equivalences_from_phis): No longer look for
627         nonzero PHI arguments.
628         (cprop_into_successor_phis): No longer propagate nonzero
629         property into PHI arguments.  Lose unused argument.  Caller
630         updated.
631         (record_equivalences_from_stmt): No longer record nonzero
632         values for SSA_NAMEs.
633         (lookup_avail_expr): No longer use nonzero_vars.
634
635         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
636         for sizetype when sizetype is unsigned.
637
638 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
639
640         PR rtl-optimization/25603
641         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
642         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
643         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p 
644         with new meaning of SETS.
645
646 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
647
648         PR target/20353
649         PR target/24578
650         PR target/24837
651         * config/linux.opt: New file.
652         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
653         LINUX_DYNAMIC_LINKER): Define.
654         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
655         * config.gcc (*-*-linux*): Define extra_options.
656         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
657         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
658         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
659         GLIBC_DYNAMIC_LINKER.
660         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
661         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
662         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
663         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
664         * doc/invoke.texi (GNU/Linux Options): New section.
665
666 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
667
668         * config/sparc/sparc.md (setjmp): Rewrite.
669         (setjmp_32): Delete.
670         (setjmp_64): Likewise.
671
672 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
673
674         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
675          previous change.
676
677 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
678
679         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
680         read-write uses.
681
682 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
683
684         PR rtl-optimization/26296
685         * Makefile.in (loop-invariant.c): Add except.h dependency.
686         * loop-invariant.c: Include except.h.
687         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
688
689 2005-02-16  Paul Brook  <paul@codesourcery.com>
690
691         * reload1.c (emit_reload_insns): Invalidate dead input registers used
692         for reloads.
693
694 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
695
696         PR rtl-optimization/25636
697         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
698         when deciding whether an insn is an initializing insn.
699
700 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
701
702         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
703         (tree_code_size): Ditto.
704         * tree.h (struct tree_memory_tag): Remove parent_var.
705         (struct tree_struct_field_tag): New.
706         (SFT_OFFSET): New.
707         (SFT_SIZE): New.
708         (union tree_node): Add sft member.
709         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
710         specially here.
711         (create_sft): Add size and offset argument, set SFT_OFFSET and
712         SFT_SIZE.
713         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
714         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
715         * tree-flow-inline.h (get_subvar_at): Update for
716         SFT_OFFSET/SFT_SIZE.
717         (var_can_have_subvars): Ditto.
718         (overlap_subvar): Ditto.
719         * print-tree.c (print_node): Print out interesting things for
720         SFT's.
721         * tree-flow.h (struct subvar): Remove offset and size members.
722         * tree-ssa-operands.c (get_expr_operands): Update for
723         get_indirect_ref_operands changes.
724         (get_indirect_ref_operands): Call add_virtual_operand instead of
725         add_stmt_operand.  Only recurse on base var if requested.
726         (access_can_touch_variable): New function.
727         (add_stmt_operand): Split virtual operand handling into ...
728         (add_virtual_operand): Here.  Add offset, size, and for_clobber
729         arguments.  Prune alias sets.
730         (add_call_clobber_ops): Call add_virtual_operand.
731         
732 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
733
734         PR middle-end/26300
735         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
736
737         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
738         than TREE_CODE as index into omp_clause_num_ops array.
739
740 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
741
742         PR rtl-optimization/26184
743         * modulo-sched.c (generate_reg_moves): Free bitmap vector
744         uses_of_defs.
745         * modulo-sched.c (sms_schedule): Free g_arr pointer.
746         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
747         must_precede, must_follow and tobe_scheduled.
748
749         PR other/26147
750         * opts.c (common_handle_option): Free new_option pointer.
751         * df-core.c (df_analyze): Free postorder pointer.
752
753 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
754
755         * Makefile.in: Fix the examples about the use of stamps
756
757 2006-02-15  Michael Matz  <matz@suse.de>
758
759         PR middle-end/22275
760
761         * stor-layout.c (layout_decl): Zero-width bitfields aren't
762         influenced by maximum_field_alignment or DECL_PACKED.
763         (update_alignment_for_field): Ditto.
764         (place_field): Ditto.
765         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
766         this behaviour.
767
768 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
769
770         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
771         (debug_flow_info): Pass it.
772         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
773         * bb-reorder.c (reorder_basic_blocks): Likewise.
774         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
775         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
776         * flow.c (life_analysis, recompute_reg_usage): Likewise.
777         * gcse.c (gcse_main, bypass_jumps): Likewise.
778         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
779         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
780         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
781         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
782         * rtl.h (dump_flow_info): Adjust prototype.
783         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
784         * var-tracking.c (variable_tracking_main): Likewise.
785         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
786         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
787         options.
788
789 2006-02-15  Marcin Dalecki <martin@dalecki.de>
790
791         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
792         construction.
793
794 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
795
796         PR tree-optimization/26209
797         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
798         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
799         eh edges.
800         * tree-cfg.c (replace_uses_by): Do not alter cfg.
801
802 2006-02-14  Roger Sayle  <roger@eyesopen.com>
803
804         PR middle-end/23670
805         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
806         (X,Y) and the corresponding symmetry related transformations.
807         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
808         (X,Y) and its symmetry related transformations.
809
810 2006-02-14  Roger Sayle  <roger@eyesopen.com>
811
812         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
813         and GEU.
814
815 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
816
817         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
818
819 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
820
821         PR bootstrap/26053
822         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
823         support COMDAT group.
824         * configure: Regenerate.
825
826 2006-02-14  Roger Sayle  <roger@eyesopen.com>
827
828         PR middle-end/26279
829         PR middle-end/26280
830         PR middle-end/26283
831         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
832
833 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
834
835         Fix PR tree-optimization/26260
836
837         * doc/invoke.texi (max-fields-for-field-sensitive): Document
838         param.
839         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
840         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
841         * tree-ssa-structalias.c (create_variable_info_for): Use
842         MAX_FIELDS_FOR_FIELD_SENSITIVE.
843         
844 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
845
846         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
847         Document.
848         * tree-ssa-loop-niter.c (number_of_iterations_ne,
849         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
850         of the ending condition.
851         * tree-ssa-loop-manip.c: Include params.h.
852         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
853         tree_unroll_loop): New functions.
854         * tree-pass.h (pass_loop_prefetch): Declare.
855         * loop.c (rest_of_handle_loop_optimize): Test for
856         -fprefetch-loop-arrays-rtl.
857         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
858         * timevar.def (TV_TREE_PREFETCH): New timevar.
859         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
860         pass_loop_prefetch): New.
861         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
862         (cleanup_tree_cfg_loop): Call scev_reset.
863         * common.opt (fprefetch-loop-arrays-rtl): Add.
864         * tree-ssa-loop-prefetch.c: New file.
865         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
866         (new_temp_expr_table): Initialize expr_vars.
867         (free_temp_expr_table): Cleanup expr_vars.
868         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
869         expressions from being merged into one.
870         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
871         (struct tree_niter_desc): Add control, bound and cmp fields.
872         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
873         Declare.
874         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
875         (tree-cfgcleanup.o): Add SCEV_H dependency.
876         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
877         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
878
879 2006-02-14  Richard Guenther  <rguenther@suse.de>
880
881         PR tree-optimization/26258
882         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
883         in PHI argument processing.
884
885 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
886
887         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
888         new expression in the requested machine mode.
889
890 2006-02-13  Roger Sayle  <roger@eyesopen.com>
891
892         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
893         directly, instead let do_compare_rtx_and_jump handle this for us.
894         * expr.c (expand_expr_real_1): Likewise.
895         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
896         before do_jump_by_parts_greater.
897         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
898         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
899
900 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
901
902         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
903
904 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
905
906         PR rtl-optimization/26235
907         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
908         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
909         format.
910
911 2006-02-13  Jeff Law  <law@redhat.com>
912
913         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
914         TRUTH_XOR_EPR.
915
916 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
917
918         PR middle-end/26092
919         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
920         twice if decl is a builtin.  When trying again, call get_callee_fndecl
921         first to verify it is still a builtin.
922
923 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
924
925         * dwarf2out.c (base_type_die): Don't add AT_name here.
926         (subrange_type_die): Don't add AT_name here.
927         (modified_type_die): Rearrange code flow.  Do add AT_name here.
928
929 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
930
931         PR rtl-optimization/26247
932         PR rtl-optimization/26248
933         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
934
935 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
936
937         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
938         * config/fixtfdi.c: Likewise.
939         * config/fixunstfdi.c: Likewise.
940         * config/floatditf.c: Likewise.
941
942 2006-02-13  Roger Sayle  <roger@eyesopen.com>
943
944         PR middle-end/24427
945         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
946         into (X,C2) if C1 is a subset of the bits of C2.  Transform
947         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
948         (X&(C1&~C2))|C2.
949         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
950
951 2006-02-13  Josh Conner  <jconner@apple.com>
952
953         PR target/25376
954         * varasm.c (function_section): Check for section name before
955         calling select_section on targets that define
956         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
957         unlikely_text_section instead of hot_function_section if
958         first_function_block_is_cold.
959
960 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
961
962         PR middle-end/25335
963         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
964
965 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
966
967         PR rtl-optimization/26222
968         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
969         after tree->rtl expansion.
970         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
971         before passing it to emit_move_insn.
972
973 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
974
975         * doc/invoke.texi (-Write-strings): Document that it is enabled by
976         default. 
977         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
978         Clarify documentation.
979         * c-common.h (warn_write_strings): Remove.
980         * c-common.c (warn_write_strings): Likewise.
981         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
982         default for C++.
983
984 2006-02-12  Roger Sayle  <roger@eyesopen.com>
985
986         PR middle-end/25724
987         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
988         (do_jump_parts_zero_rtx): New function renamed from
989         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
990         (do_jump_parts_equality_rtx): New function split out from
991         do_jump_parts_equality.  Old implementation renamed as above.
992         Call do_jump_parts_zero_rtx if either operand is zero.
993         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
994         do all of the heavy lifting.
995         (do_compare_rtx_and_jump): Handle multi-word comparisons by
996         calling either do_jump_by_parts_greater_rtx or
997         do_jump_by_parts_equality_rtx.
998         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
999         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1000         moved to do_compare_rtx_and_jump, call it directly.
1001         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1002         mode argument.  Call do_compare_rtx_and_jump.
1003         (emit_case_nodes): Update calls to do_jump_if_equal.
1004
1005 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1006
1007         PR rtl-optimization/26225
1008         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1009
1010 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1011
1012         PR rtl-optimization/26232
1013         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1014
1015 2006-02-11  Jason Merrill  <jason@redhat.com>
1016
1017         PR tree-opt/24365
1018         * tree-inline.c (declare_return_variable): Just don't use the
1019         modify target if it's a gimple complex reg and the return slot
1020         isn't.
1021
1022 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1023
1024         * doc/contrib.texi: Update my entry.
1025
1026 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1027
1028         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1029
1030 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1031
1032         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1033         expensive.
1034
1035 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1036
1037         * doc/invoke.texi (-floop-optimize2): Removed.
1038         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1039         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1040         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1041         * common.opt (floop-optimize2): Removed.
1042         (fmove-loop-invariants): Enabled by default.
1043
1044 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1045
1046         * tree-if-conv.c (combine_blocks): Free the result of
1047         get_loop_exit_edges.
1048
1049 2006-02-10  Jeff Law  <law@redhat.com>
1050
1051         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1052
1053         PR tree-optimization/26213
1054         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1055         loop trying to follow SSA_NAME_VALUE chains.
1056
1057 2006-02-10  Richard Guenther  <rguenther@suse.de>
1058
1059         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1060         deal with structures that end in implicitly variable sized arrays.
1061
1062 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1063
1064         PR rtl-optimization/24762
1065         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1066         eh edges.
1067
1068 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1069
1070         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1071         (struct ivopts_data): Add regs_used field.
1072         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1073         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1074         instead of loop_data->regs_used;
1075         (free_loop_data): Do not free aux fields for loops.
1076         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1077         and tree_ssa_iv_optimize_finalize.
1078
1079 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1080
1081         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1082
1083 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1084
1085         PR target/26141
1086         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1087         computing the effective result type.
1088
1089 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1090
1091         PR inline-asm/16194
1092         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1093         (tree_overlaps_hard_reg_set): Declare.
1094         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1095         type and signature to match function type expected by walk_tree.
1096         (tree_overlaps_hard_reg_set): New function.
1097         (decl_conflicts_with_clobbers_p): Rename to:
1098         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1099         Use tree_overlaps_hard_reg_set.  Changed caller.
1100         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1101         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1102         * cris.c (cris_md_asm_clobbers): Likewise.
1103
1104 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1105
1106         * reload1.c (emit_input_reload_insns): Delete code that tries to
1107         inherit using find_equiv_reg.
1108
1109 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1110
1111         * c-common.h (flag_const_strings): Don't declare.
1112         * c-common.c (flag_const_strings): Remove.
1113         * c.opt (fconst_strings): Remove.
1114         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
1115         <OPT_Wwrite_strings>: Don't set flag_const_strings.
1116         (c_common_init_options): Don't set flag_const_strings.
1117         * doc/invoke.texi (-fno-const-strings): Remove documentation.
1118
1119 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
1120
1121         * arm.md (tlobits_cbranch): New pattern.
1122         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
1123         testing a single bit.
1124
1125 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1126
1127         PR tree-opt/26179
1128         * tree-ssa-pre.c (create_component_ref_by_pieces):
1129         Handle RETURN_DECL like VAR_DECL.
1130
1131 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1132
1133         PR middle-end/26134
1134         * fold-const.c (fold_indirect_ref_1): Fold 
1135         "*(foo *)&complexfoo" to "__real__ complexfoo"
1136         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
1137
1138 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1139
1140         * tree-flow-inline.h (var_can_have_subvars): 
1141         Volatile variables should not have subvariables.
1142
1143 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
1144
1145         PR 26180
1146         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
1147         multiplying unsigned values.
1148         Tidy comments.
1149
1150 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
1151
1152         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
1153
1154 2006-02-08  Jason Merrill  <jason@redhat.com>
1155
1156         PR c++/25979
1157         * tree.def: Elaborate on difference from MODIFY_EXPR.
1158         * doc/c-tree.texi (INIT_EXPR): Likewise.
1159         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
1160         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
1161         (gimplify_target_expr): Likewise.
1162         (gimplify_cond_expr): Remove target handling.
1163         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
1164         (gimplify_expr): Clobber it here.
1165         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
1166         Do return slot optimization if we have an INIT_EXPR.
1167
1168         PR tree-opt/24365
1169         * tree-inline.c (declare_return_variable): Also clear 
1170         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
1171
1172         PR c++/16405
1173         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
1174
1175         PR middle-end/22439
1176         * gimplify.c (gimplify_one_sizepos): Fix typo.
1177
1178 2006-02-08  Jeff Law  <law@redhat.com>
1179
1180         PR tree-optimization/21417
1181         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
1182         across a backedge if the control statement at the end of the
1183         block is data dependent on other statements in the same block.
1184         (record_temporary_equivalences_from_stmts): Remove over-conservative
1185         test for threading across backedges.
1186
1187         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
1188         control statement, handle all three special cases in the same
1189         manner as they all have the same desired solution.  No longer
1190         special case edge flag updating when the post dominator is
1191         the exit block.
1192
1193 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1194
1195         * tree.def (CHAR_TYPE): Remove.
1196         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
1197         * dwarf2out.c (base_type_die, is_base_type): Likewise.
1198         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
1199         (gen_string_type_die): Delete unreachable function.
1200
1201         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
1202         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
1203         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
1204         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
1205         * builtins.c (type_to_class): Likewise.
1206         * fold-const.c (fold_convert, build_range_check,
1207         merge_ranges): Likewise.
1208         * expr.c (count_type_elements): Likewise.
1209         * c-pretty-print.c (pp_c_type_specifier): Likewise.
1210         * stor-layout.c (layout_type): Likewise.
1211         * ipa-type-escape.c (type_to_consider): Likewise.
1212         * gimplify.c (omp_firstprivatize_type_sizes,
1213         gimplify_type_sizes): Likewise.
1214         * explow.c (promote_mode): Likewise.
1215         * tree-sra.c (is_sra_scalar_type): Likewise.
1216         * varasm.c (output_constant): Likewise.
1217         * tree-inline.c (remap_type_1): Likewise.
1218         * convert.c (convert_to_pointer, convert_to_real,
1219         convert_to_integer, convert_to_complex): Likewise.
1220
1221 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
1222
1223         * df-scan.c (df_def_record_1): A set destination may
1224         be a parallel regardless of mode.
1225
1226 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1227
1228         PR target/22209
1229         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
1230         * config/mips/_tilib.c: Remove.
1231         * config/fixtfdi.c: New libgcc source file.
1232         * config/fixunstfdi.c: New source file.
1233         * config/floatditf.c: New source file.
1234         * config/floatunditf.c: New souce file.
1235         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
1236         files above instead of config/mips/_tilib.c.
1237         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
1238
1239 2006-02-08  Jeff Law  <law@redhat.com>
1240
1241         PR tree-optimization/26169
1242         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
1243         threading jumps.
1244
1245 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
1246
1247         * df.h (DF_REG_SIZE): Return the length of the initialized
1248         part of the array.
1249
1250 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
1251
1252         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
1253         __muldf3): Return a correctly signed zero.
1254
1255 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
1256
1257         * passes.c (register_one_dump_file): Accept the current properties
1258         instead of pass number.  Adjust call to dump_register.  Remove
1259         duplicated code.
1260         (register_dump_files): Now a wrapper around...
1261         (register_dump_files_1): ... this one.  Do not modify the pass
1262         structure.
1263         (next_pass_1): Cosmetic fix.
1264         (execute_todo): Keep second parameter only.  Use curr_properties
1265         instead of fetching it from the pass structure.  Check and set
1266         last_verified.
1267         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
1268         instead of fetching it from the pass structure.  Fix calls to
1269         execute_todo.  Update curr_properties and initialize .vcg RTL dump
1270         after running the pass.  Reset last_verified.
1271         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
1272         at the beginning.
1273         (FIRST_AUTO_NUMBERED_DUMP): New.
1274         (dump_register): Remove "num" parameter, assign it within the
1275         function.
1276         (get_dump_file_name): Modify template for dumps.
1277         * tree-dump.h (dump_register): Adjust prototype.
1278         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
1279         (PROP_trees): Add PROP_gimple_lomp.
1280         (TODO_set_props): New.
1281         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
1282         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
1283         * cfgexpand.c (pass_expand): Destroy PROP_trees.
1284
1285 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
1286
1287         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
1288         (sparc64-*-linux*): Likewise.
1289         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
1290         * config/sparc/t-linux: New file.
1291         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
1292         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
1293         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
1294         -m32 -mlong-double-128.
1295
1296         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
1297         * config/alpha/t-linux: New file.
1298         * config/alpha/libgcc-alpha-ldbl.ver: New file.
1299
1300         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
1301         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
1302         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
1303         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
1304         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
1305         (CPP_ARCH32_SPEC): Remove.
1306
1307 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
1308
1309         PR tree-optimization/26145
1310         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
1311         bbs pointer.
1312
1313 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1314
1315         PR target/26109
1316         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
1317         >= 240000 when generating code for SOM runtime.
1318         (output_indirect_call): Don't use "b,l" instruction for indirect calls
1319         to $$dyncall when generating code for SOM runtime..
1320
1321 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1322
1323         PR c++/18150
1324         * doc/invoke.texi (-Wsequence-point): Update documentation
1325         that -Wsequence-point is implemented for C++ as well.
1326
1327 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1328
1329         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
1330         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
1331         (LIB_SPEC): Likewise.
1332         * doc/invoke.texi (SPARC options): Document -pthread.
1333
1334 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
1335
1336         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
1337         PIC addresses.
1338
1339 2006-02-07  Roger Sayle  <roger@eyesopen.com>
1340
1341         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
1342         Correct comment describing BOOLEAN_TYPE.
1343
1344 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1345
1346         * c.opt: C++ frontend supports -Wdiv-by-zero.
1347         * c-opts.c (c_common_handle_option): Remove dead case.
1348
1349 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1350
1351         * configure.ac (TLS assembler check): Do not enable TLS by
1352         default on SPARC/Solaris before version 10.
1353         * configure: Regenerate.
1354
1355 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
1356
1357         * doc/invoke.texi (xl-compat): Document conversion and support
1358         routine names.
1359
1360 2006-02-07  Jeff Law  <law@redhat.com>
1361
1362         * tree-vrp.c (find_conditional_asserts): Update comments.
1363         (simplify_stmt_for_jump_threading): New.
1364         (identify_jump_threads, finalize_jump_threads): New.
1365         (vrp_finalize): Call identify_jump_threads.
1366         (execute_vrp): Call finalize_jump_threads.
1367         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
1368         (vrp_element, vrp_data, vrp_element_p): Remove.
1369         (vrp_hash_elt, vrp_variables_stack): Remove.
1370         (vrp_hash, vrp_eq, record_range): Remove.
1371         (simplify_cond_and_lookup_avail_expr): Remove.
1372         (extract_range_from_cond): Remove.
1373         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
1374         (simplify_stmt_for_jump_threading): New.
1375         (dom_thread_across_edge): New wrapper.
1376         (tree_ssa_dominator_optimize): No longer initialize or
1377         finalize any of the VRP datastructures.  Remove iteration
1378         step and simplify as a result of removal of iteration step.
1379         (pass_dominator): Perform a cfg cleanup after DOM.
1380         (dom_opt_finalize_block): Use the new common routines
1381         for threading jumps.  Simplify stack management slightly.
1382         No longer need to unwind VRP state.
1383         (record_equivalences_from_incoming_edge): No longer record
1384         VRP information.
1385         (eliminate_redundant_computations): No longer call
1386         simplify_cond_and_lookup_avail_expr.
1387         * tree-flow.h (potentially_threadable_block): Prototype.
1388         (thread_across_edge): Likewise.
1389         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
1390         (tree-ssa-threadedge.o): Add dependencies.
1391         * tree-ssa-threadedge.c: New file.
1392         * passes.c (init_optimization_passes): Merge PHIs before
1393         calling VRP.  Run VRP again late in the SSA optimization pipeline.
1394
1395 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1396
1397         * df-core.c (df_set_blocks): Do not dereference function pointers.
1398         (df_finish1): Likewise.
1399         (df_hybrid_search_forward): Likewise.
1400         (df_hybrid_search_backward): Likewise.
1401         (df_iterative_dataflow): Likewise.
1402         (df_analyze_problem): Likewise.
1403         (df_compact_blocks): Likewise.
1404         (df_dump): Likewise.
1405         * df-scan.c (df_rescan_blocks): Likewise.
1406         (df_record_entry_block_defs): Likewise.
1407
1408         * genconditions.c (write_conditions): Guard the definition of
1409         'insn_conditions' with the check on GCC version.
1410         (write_writer): Guard the traversal 'insn_conditions' with
1411         the check on GCC version.
1412
1413 2006-02-07  Richard Guenther  <rguenther@suse.de>
1414
1415         PR c++/26140
1416         Revert
1417         2006-01-30  Richard Guenther  <rguenther@suse.de>
1418         PR c++/23372
1419         * gimplify.c (gimplify_target_expr): Handle easy cases
1420         without creating a temporary.
1421
1422 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
1423
1424         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
1425         use of float in probability computations.  Use edge probabilities
1426         in place of statically computed probabilities.
1427         (min_spec_prob): New static variable.
1428         (schedule_insns): Initialize it.
1429         (GET_SRC_PROB): Removed.
1430         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
1431
1432 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
1433
1434         PR debug/24444
1435         * config/ia64/unwind-ia64.c: Revert last change.
1436         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
1437         (INCOMING_FRAME_SP_OFFSET): Define.
1438
1439 2006-02-06  Roger Sayle  <roger@eyesopen.com>
1440
1441         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
1442
1443 2006-02-07  Ben Elliston  <bje@au.ibm.com>
1444
1445         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
1446         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
1447         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
1448         (ix86_return_in_memory): Handle TDmode.
1449         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
1450         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
1451
1452 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
1453
1454         * reorg.c (dbr_schedule): Use dump_file instead of file.
1455
1456 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
1457
1458         PR target/25917
1459         * config/ia64/predicates.md (extr_len_operand): New predicate.
1460         * config/ia64/ia64.md (extv): Tighten constraints.
1461         (extzv): Ditto.
1462         (*tbit_and_2): Ditto.
1463         (*tbit_and_3): Ditto.
1464         (*tbit_or_2): Ditto.
1465         (*tbit_or_3): Ditto.
1466         (*bit_zero): Ditto.
1467         (*bit_one): Ditto.
1468
1469 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
1470
1471         PR target/23359
1472         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
1473
1474 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1475
1476         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
1477         loop_optimizer_init and loop_optimizer_finalize
1478         * tree-ssa-sink.c (execute_sink_code): Ditto.
1479         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1480         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
1481         tree_ssa_loop_done): Ditto.
1482         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
1483         * sched-ebb.c: Include output.h.
1484         (schedule_ebbs): Do not use dump argument.
1485         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
1486         * loop.c (loop_dump_stream): Removed.
1487         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
1488         argument.
1489         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
1490         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
1491         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
1492         loop_iterations, strength_reduce, record_biv, record_giv,
1493         final_giv_value, check_final_value, check_ext_dependent_givs,
1494         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
1495         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
1496         dump_file instead of loop_dump_stream.
1497         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
1498         argument dump_file.
1499         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
1500         dump argument.
1501         * flow.c (life_analysis, rest_of_handle_life): Ditto.
1502         * haifa-sched.c: Include output.h
1503         (schedule_insns, sched_init): Do not use dump argument.
1504         * mode-switching.c (optimize_mode_switching): Ditto.
1505         * modulo-sched.c (stats_file): Removed.
1506         (print_node_sched_params): Do not call argument dump_file.
1507         (sms_schedule_by_order, loop_canon_p, sms_schedule,
1508         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
1509         of stats_file.
1510         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
1511         use dump argument.
1512         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
1513         rtl_loop_init, rtl_loop_done): Ditto.
1514         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
1515         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
1516         Ditto.
1517         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
1518         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
1519         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
1520         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
1521         * emit-rtl.c (renumber_insns): Ditto.
1522         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
1523         expand_gimple_basic_block, tree_expand_cfg): Ditto.
1524         * regclass.c (regclass): Ditto.
1525         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
1526         remove_ssa_form, rewrite_out_of_ssa): Ditto.
1527         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
1528         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
1529         Ditto.
1530         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
1531         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
1532         to regclass.
1533         * gcse.c (gcse_file, debug_stderr): Removed.
1534         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
1535         rest_of_handle_gcse): Do not use dump argument.
1536         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
1537         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
1538         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
1539         compute_code_hoist_vbeinout, compute_code_hoist_data,
1540         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
1541         compute_store_table, build_store_vectors, insert_insn_start_bb,
1542         insert_store, remove_reachable_equiv_notes, replace_store_insn,
1543         store_motion): Use dump_file instead of gcse_file.
1544         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
1545         * profile.c (profile_dump_file): Removed.
1546         (branch_prob): Use dump_file instead of profile_dump_file.
1547         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
1548         dump_file.
1549         * tree-ssa-copy.c (dump_copy_of): Ditto.
1550         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
1551         dump file to life_analysis.
1552         * bt-load.c (branch_target_load_optimize): Ditto.
1553         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
1554         renumber_insns.
1555         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
1556         regclass, dbr_schedule): Declaration changed.
1557         * sched-int.h (sched_init): Declaration changed.
1558         * tree-profile.c (tree_profile_dump_file): Removed.
1559         (tree_profile_hooks): Removed profile_dump_file hook.
1560         * rtl-profile (rtl_profile_dump_file): Removed.
1561         (rtl_profile_hooks): emoved profile_dump_file hook.
1562         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
1563         changed.
1564         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
1565         * tree-cfg.c (build_tree_cfg): Ditto.
1566         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
1567         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
1568         Declaration changed.
1569         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
1570         life_analysis and schedule_insns.
1571         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
1572         life_analysis.
1573         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
1574         dbr_schedule.
1575         * config/mips/mips.c (mips_reorg): Ditto.
1576         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
1577         schedule_ebbs.
1578
1579 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
1580
1581         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1582         (s390_mangle_fundamental_type): New.
1583         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1584         Define.
1585
1586         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1587         (alpha_mangle_fundamental_type): New.
1588         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1589         Define.
1590
1591         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1592         Define.
1593         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1594         Define.
1595         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1596         (sparc_mangle_fundamental_type): New.
1597
1598 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
1599
1600         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
1601         (s390x-*-linux*): Likewise.
1602         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
1603         * config/s390/t-linux: New file.
1604
1605 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1606
1607         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
1608         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
1609
1610 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
1611
1612         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
1613         (ANTIC_SAFE_LOADS): New macro.
1614         (find_or_generate_expression): Add prototype.
1615         (set_contains_value): Allow null set for sake of not always having
1616         to allocate ANTIC_SAFE_LOADS.
1617         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
1618         Allow COMPONENT_REF too.
1619         (valid_in_set): Allow COMPONENT_REF.
1620         Check ANTIC_SAFE_LOADS too.
1621         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
1622         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
1623         rename.
1624         (can_PRE_operation): Add COMPONENT_REF.
1625         (create_component_ref_by_pieces): New function.
1626         (create_expression_by_pieces): Use create_component_ref_by_pieces.
1627         (insert_aux): Move AGGREGATE_TYPE_P check here.
1628         (compute_avail): Set bb local stmt uids.
1629         (pass_pre): Use TODO_update_ssa_only_virtuals.
1630         
1631 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1632
1633         * configure.ac: Unconditionally disable decimal float by default.
1634         * configure: Regenerate.
1635
1636 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1637
1638         * read-rtl.c (read_name): Terminate reading on EOF.
1639
1640 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1641
1642         * dfp.c (decimal_real_arithmetic): Change second argument type
1643         from int to enum tree_code. Do not always return true, but now
1644         return result of any call to decimal_do helper functions.
1645         * dfp.h (decimal_real_arithmetic): Update prototype.
1646
1647 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
1648
1649         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
1650
1651 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
1652
1653         PR tree-opt/25251
1654         * tree-cfg.c (cleanup_dead_labels): Also don't remove
1655         forced labels.
1656
1657 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1658
1659         * tree-vrp.c (cfg_loops): Removed.
1660         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
1661         Use current_loops instead of cfg_loops.  Pass flags to
1662         loop_optimizer_init.
1663         * cfgloopmanip.c (fix_loop_structure): Update only available
1664         information.
1665         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
1666         loop_optimizer_init.
1667         * modulo-sched.c (build_loops_structure): Removed.
1668         (sms_schedule): Use loop_optimizer_init.
1669         * loop-init.c (loop_optimizer_init): Use flags to determine
1670         which properties of loops to prepare.
1671         (rtl_loop_init): Pass flags to loop_optimizer_init.
1672         * tree-ssa-sink.c (execute_sink_code): Ditto.
1673         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
1674         * tree-ssa-pre.c (init_pre): Ditto.
1675         * cfgloop.h (LOOPS_NORMAL): New.
1676         (loop_optimizer_init): Declaration changed.
1677
1678 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1679
1680         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
1681         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
1682         pa/t-pa.
1683         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
1684         pa/t-pa.
1685         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
1686         pa/x-ada.
1687         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
1688         * pa/t-pa64: Delete quadlib.c rule.
1689         * pa/x-ada: Revert last change.
1690         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
1691
1692 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1693
1694         PR rtl-optimization/26087
1695         * rtlanal.c (canonicalize_condition): Do not cross basic block
1696         boundaries.
1697
1698 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
1699
1700         PR debug/24444
1701         * config/ia64/ia64.c: Include debug.h.
1702         (MAX_ARTIFICIAL_LABEL_BYTES): New.
1703         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
1704         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
1705         (process_epilogue, process_set, process_for_unwind_directive):
1706         Output unwind info only if requested.  Add CFA info if requested.
1707         Add new arguments as needed.  Adjust callers.
1708         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
1709         incorrect default.
1710         (DWARF2_FRAME_INFO): Define to zero.
1711         * config/ia64/unwind-ia64.c: Remove code that compensated for
1712         the CFA offset error fixed above.
1713         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
1714         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
1715         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
1716         -funwind-tables and -fexceptions to enable frame info.
1717         (dwarf2out_frame_init): Define initial CFA even if
1718         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
1719         DWARF2_UNWIND_INFO is nonzero, not just defined.
1720         (dwarf2out_frame_finish): Output non-EH call frame info only
1721         if DWARF2_FRAME_INFO is nonzero.
1722         (convert_cfa_to_loc_list,
1723         compute_frame_pointer_to_cfa_displacement): Define even if
1724         unwind info is not supported.
1725         (gen_subprogram_die): Use the above unconditionally.  Remove
1726         legacy alternate code.
1727         * toplev.c (compile_file): Compile in call to
1728         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
1729         (lang_dependent_init): Ditto for dwarf2out_frame_init.
1730
1731 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
1732             Jakub Jelinek  <jakub@redhat.com>
1733
1734         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
1735         IBM extended float format long double as "g" on powerpc*-linux.
1736
1737 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1738
1739         PR target/25926
1740         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
1741         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
1742
1743 2006-02-03  Jason Merrill  <jason@redhat.com>
1744
1745         PR c++/25979
1746         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
1747
1748         PR middle-end/25977
1749         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
1750         on the return slot if it's an NRV.
1751
1752 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
1753
1754         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
1755         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
1756         rewrite_use): Do not handle USE_OUTER.
1757         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
1758         add_iv_outer_candidates, may_replace_final_value,
1759         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
1760         (find_interesting_uses_op): Functionality of
1761         find_interesting_uses_outer_or_nonlin moved here.
1762         (find_interesting_uses_outside): Use find_interesting_uses_op.
1763
1764 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
1765
1766         PR target/25960
1767         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
1768
1769 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
1770             Ulrich Weigand  <uweigand@de.ibm.com>
1771
1772         PR target/25864
1773         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
1774         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
1775         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
1776         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
1777         and dxr fields.
1778         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
1779         (s390_rtx_costs): Use the new fields to calculate rtx costs.
1780         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
1781         Define secondary reloads for TFmode moves.
1782         (constant_modes): Add TFmode.
1783         (NR_C_MODES): Set to 8.
1784         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
1785         builtin define.
1786         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
1787         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
1788         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
1789         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
1790         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
1791         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
1792         (FPR mode macro): Add TFmode.
1793         (DSF mode macro): New.
1794         (<de>, <dee> mode attributes): Removed.
1795         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
1796         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
1797         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
1798         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
1799         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
1800         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
1801         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1802         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
1803         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
1804         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1805         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
1806         "*negabs<mode>2", "sqrt<mode>2"):
1807         Changed <de> to <xde>. R constraint replaced by <Rf>.
1808         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
1809         <Rf>.
1810         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1811         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1812         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
1813         splitters.
1814         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
1815         "extenddftf2", "extendsftf2"): New expanders.
1816         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
1817         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1818         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1819         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1820         New options.
1821         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1822         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
1823         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1824         __floatditf): Add a GCC_4.1.0 symbol version tag.
1825         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1826         the new options.
1827
1828 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1829
1830         PR target/25377
1831         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1832         Use targetm.binds_local_p instead of TREE_PUBLIC.
1833
1834 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1835
1836         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1837         on INTEGER_TYPEs to indicate that it denotes a character type.
1838         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1839         signed_char_type_node, unsigned_char_type_node and char_type_node.
1840         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1841         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1842         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1843
1844 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1845             Daniel Berlin  <dberlin@dberlin.org>
1846
1847         * tree-tailcall.c (arg_needs_copy_p): New function.
1848         (eliminate_tail_call): Use arg_needs_copy_p.
1849         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1850         (add_virtual_phis): New function.
1851
1852 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1853
1854         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1855         #ignore instead of #scratch for %g7 .register directive.
1856
1857 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1858
1859         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1860         object files.
1861
1862 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1863
1864         * flow.c (calculate_global_regs_live): Assert that there aren't any
1865         EDGE_FAKE edges.
1866
1867 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1868
1869         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1870         what its name says.
1871         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1872         bsi_after_labels iterator.
1873         * tree-if-conv.c (find_phi_replacement_condition,
1874         replace_phi_with_cond_modify_expr): Likewise.
1875         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1876         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1877
1878 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1879
1880         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1881
1882 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1883
1884         PR 25990
1885         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1886         array after growing it.
1887
1888 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1889
1890         PR middle-end/24901
1891         * fold-const.c (fold_checksum_tree): Change type of buf.
1892
1893 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1894
1895         * reload.c (push_secondary_reload): Initialize t_icode.
1896
1897 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1898
1899         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1900         -msoft-float -mlong-double-128 only issue a warning, but don't
1901         swich to DFmode long double.
1902
1903 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1904
1905         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1906         has a constant equivalent, iterate over equivalents for arg0,
1907         calling simplify_relational_operation and if there's a result
1908         cheaper than X, apply fold_rtx and return the result.
1909
1910 2006-02-01  Jan Hubicka  <jh@suse.cz>
1911
1912         * opts.c (no_unit_at_a_time_default): New global variable.
1913         (decode_options): Use it.
1914         * opts.h (no_unit_at_a_time_default): Declare.
1915
1916 2006-02-01  Paul Brook  <paul@codesourcery.com>
1917
1918         * function.c (assign_parm_setup_reg): Use function argument promotion
1919         rules.
1920         * expr.c (expand_expr_real_1): Use function argument promotion rules
1921         for PARM_DECLs.
1922
1923 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1924
1925         * gcc.c (process_command): Change j to 'unsigned int'.
1926
1927 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1928
1929         PR middle-end/26001
1930         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
1931         Use the corrected index for the character
1932         out of the string constant.
1933
1934 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1935
1936         * mode-switching.c (optimize_mode_switching): Fix size
1937         allocated for bb_info[n_entities].
1938
1939 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1940
1941         * gcc.c (main): Correct type that is allocated for
1942         explicit_link_files.
1943
1944 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
1945
1946         * config/s390/s390.c (init_alignment_context): Set
1947         ALIAS_SET_MEMORY_BARRIER on the MEM.
1948         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
1949
1950 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
1951
1952         PR middle-end/25933
1953         * loop-unroll.c (unroll_loop_runtime_iterations): Free
1954         dom_bbs pointer.
1955         * tree-ssa-live.c (type_var_init): Allocate bitmap after
1956         call to tpa_init.
1957
1958 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
1959
1960         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
1961         * regrename.c: Ditto.
1962         * tree-ssa-loop-im.c: Ditto.
1963         * tree-dump.c: Ditto.
1964         * tree-complex.c: Ditto.
1965         * genrecog.c: Ditto.
1966         * tree-ssa-threadupdate.c: Ditto.
1967         * tracer.c: Ditto.
1968         * java/class.c: Ditto.
1969         * java/jcf-parse.c: Ditto.
1970         * java/resource.c: Ditto.
1971         * java/except.c: Ditto.
1972         * java/jvspec.c: Ditto.
1973         * java/jcf-write.c: Ditto.
1974         * java/jcf-path.c: Ditto.
1975         * java/gjavah.c: Ditto.
1976         * java/zextract.c: Ditto.
1977         * java/jcf-io.c: Ditto.
1978         * java/jcf.h: Ditto.
1979         * java/buffer.c: Ditto.
1980         * java/lang.c: Ditto.
1981         * java/parse-scan.y: Ditto.
1982         * java/lex.c: Ditto.
1983         * java/lex.h: Ditto.
1984         * cfgloopmanip.c: Ditto.
1985         * postreload-gcse.c: Ditto.
1986         * tree-ssa-loop-manip.c: Ditto.
1987         * postreload.c: Ditto.
1988         * tree-ssa-loop-ch.c: Ditto.
1989         * loop.c: Ditto.
1990         * ipa-cp.c: Ditto.
1991         * cppspec.c: Ditto.
1992         * diagnostic.c: Ditto.
1993         * final.c: Ditto.
1994         * genoutput.c: Ditto.
1995         * gcc.c: Ditto.
1996         * cfghooks.c: Ditto.
1997         * cfgloopanal.c: Ditto.
1998         * objc/objc-act.c: Ditto.
1999         * gcov.c: Ditto.
2000         * genextract.c: Ditto.
2001         * genautomata.c: Ditto.
2002         * pretty-print.c: Ditto.
2003         * genemit.c: Ditto.
2004         * cgraphunit.c: Ditto.
2005         * flow.c: Ditto.
2006         * df-scan.c: Ditto.
2007         * haifa-sched.c: Ditto.
2008         * dominance.c: Ditto.
2009         * dbxout.c: Ditto.
2010         * tree-ssa-loop-ivopts.c: Ditto.
2011         * df-core.c: Ditto.
2012         * mode-switching.c: Ditto.
2013         * modulo-sched.c: Ditto.
2014         * graph.c: Ditto.
2015         * ipa-pure-const.c: Ditto.
2016         * cse.c: Ditto.
2017         * fix-header.c: Ditto.
2018         * web.c: Ditto.
2019         * tree-stdarg.c: Ditto.
2020         * ipa-utils.c: Ditto.
2021         * loop-init.c: Ditto.
2022         * ipa-inline.c: Ditto.
2023         * cfganal.c: Ditto.
2024         * global.c: Ditto.
2025         * alloc-pool.c: Ditto.
2026         * dwarf2out.c: Ditto.
2027         * opts.c: Ditto.
2028         * genattrtab.c: Ditto.
2029         * tree-ssa-loop-ivcanon.c: Ditto.
2030         * predict.c: Ditto.
2031         * timevar.c: Ditto.
2032         * lcm.c: Ditto.
2033         * fortran/gfortranspec.c: Ditto.
2034         * regmove.c: Ditto.
2035         * local-alloc.c: Ditto.
2036         * langhooks.c: Ditto.
2037         * function.c: Ditto.
2038         * tree-vectorizer.c: Ditto.
2039         * gcse.c: Ditto.
2040         * ipa-type-escape.c: Ditto.
2041         * alias.c: Ditto.
2042         * tree-if-conv.c: Ditto.
2043         * profile.c: Ditto.
2044         * ipa.c: Ditto.
2045         * tree-data-ref.c: Ditto.
2046         * loop-unroll.c: Ditto.
2047         * treelang/treetree.c: Ditto.
2048         * calls.c: Ditto.
2049         * bt-load.c: Ditto.
2050         * ggc-common.c: Ditto.
2051         * except.c: Ditto.
2052         * coverage.c: Ditto.
2053         * cselib.c: Ditto.
2054         * tree-cfgcleanup.c: Ditto.
2055         * tree-ssa-pre.c: Ditto.
2056         * cfgcleanup.c: Ditto.
2057         * loop-invariant.c: Ditto.
2058         * loop-iv.c: Ditto.
2059         * ipa-prop.c: Ditto.
2060         * print-tree.c: Ditto.
2061         * conflict.c: Ditto.
2062         * ggc-page.c: Ditto.
2063         * sched-deps.c: Ditto.
2064         * regclass.c: Ditto.
2065         * tree-object-size.c: Ditto.
2066         * combine.c: Ditto.
2067         * bb-reorder.c: Ditto.
2068         * resource.c: Ditto.
2069         * var-tracking.c: Ditto.
2070         * cfgloop.c: Ditto.
2071         * df-problems.c: Ditto.
2072         * reg-stack.c: Ditto.
2073         * tlink.c: Ditto.
2074         * gccspec.c: Ditto.
2075         * sched-rgn.c: Ditto.
2076         * tree-ssa-structalias.c: Ditto.
2077         * tree-ssa-reassoc.c: Ditto.
2078         * config/darwin-c.c: Ditto.
2079         * config/darwin.c: Ditto.
2080         * config/arm/arm.c: Ditto.
2081         * cfgrtl.c: Ditto.
2082         * collect2.c: Ditto.
2083         * reload1.c: Ditto.
2084
2085 2006-01-31  Nicolas Pitre  <nico@cam.org>
2086
2087         * arm.md (smaxsi3): Make aware of smax_m1.
2088         (smax_m1): New.
2089
2090 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2091
2092         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2093
2094 2006-01-31  Richard Guenther  <rguenther@suse.de>
2095
2096         * doc/invoke.texi (-msselibm): Document.
2097         * target.h (expand_library_builtin): New target hook.
2098         * builtins.c (expand_builtin): Use expand_library_builtin.
2099         (default_expand_library_builtin): New function.
2100         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2101         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2102         (link_gcc_math_spec): Declare.
2103         (static_specs): Add link_gcc_math_spec.
2104         * expr.h (default_expand_library_builtin): Declare.
2105         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2106         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
2107         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
2108         * config/i386/i386.opt (msselibm): New target option.
2109         * config/i386/i386.c (ix86_builtin_function_variants): New array.
2110         (ix86_init_sse_abi_builtins): New function.
2111         (ix86_expand_library_builtin): Likewise.
2112         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2113         (override_options): Handle error conditions wrt -msselibm.
2114         (ix86_builtins): Add function codes for SSE2 ABI builtins.
2115         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
2116         * doc/extend.texi (__builtin_sse2_*): Document new target specific
2117         builtins.
2118
2119 2006-01-31  Richard Guenther  <rguenther@suse.de>
2120         Paolo Bonzini  <bonzini@gnu.org>
2121
2122         * doc/install.texi (--disable-libgcc-math): Document.
2123
2124 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
2125
2126         * expr.h (expand_normal): new inline function.
2127         * builtins.c: use it, use EXPAND_NORMAL explicitely.
2128         * dojump.c: use it.
2129         * dwarf2out.c: use it.
2130         * expr.c: use it.
2131         * calls.c: use it.
2132         * expmed.c: use it.
2133         * except.c: use it.
2134         * config/sparc/sparc.c: use it.
2135         * config/i386/i386.c: use it.
2136         * config/rs6000/rs6000.c: use it.
2137         * config/arm/arm.c: use it.
2138         * config/mips/mips.c: use it.
2139         * stmt.c: use it, use EXPAND_NORMAL explicitely.
2140
2141 2006-01-30  Roger Sayle  <roger@eyesopen.com>
2142
2143         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
2144         argv to the appropriate type.
2145
2146 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
2147
2148         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
2149         unreachable code.
2150
2151 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
2152
2153         PR target/26018
2154         * config/s390/s390.c (struct machine_function): New flag
2155         decomposed_literal_pool_addresses_ok_p.
2156         (s390_reorg): Set it before final stage of literal pool transforms.
2157         (s390_decompose_address): Only accept displacements of the form
2158         (minus (label_ref ...) (label_ref ...)) if that flag is set.
2159
2160 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
2161
2162         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
2163         the comparison routine return.
2164
2165 2006-01-30  Michael Matz  <matz@suse.de>
2166
2167         * global.c (find_reg): Only evict for global regs.
2168         Take n_refs into account and dump more info.
2169
2170 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
2171
2172         PR target/14798:
2173         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
2174         (pragma_trap, pragma_nosave_low_regs): Likewise.
2175         (current_function_anonymous_args): Likewise.
2176         (sh_deferred_function_attributes): New variable.
2177         (sh_deferred_function_attributes_tail): Likewise.
2178         (print_operand): For '@', look up trap_exit attribute.
2179         (calc_live_regs): Look up trapa_handler attribute.  For trapa
2180         handlers, save/restore fpscr, but don't do any other
2181         interrupt-specific saves.
2182         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
2183         Fix check for partially saved registers to check for SHmedia.
2184         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
2185         (sh_output_function_epilogue): Don't clear any of the removed
2186         variables.
2187         (sh_insert_attributes): Don't check pragma_interrupt.
2188         Insert deferred attributes.  Check that interrupt attribute is
2189         present for other attributes that require its presence.
2190         (sh_attribute_table): Add new attributes trapa_handler and
2191         nosave_low_regs.
2192         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
2193         Don't check for pragma_interrupt.  Don't store argument.
2194         * sh.h (pragma_interrupt, sp_switch): Don't declare.
2195         (sh_deferred_function_attributes): Declare.
2196         (sh_deferred_function_attributes_tail): Likewise.
2197         * sh.md (sp_switch_1): Add operand.  Change generator caller.
2198         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
2199         (*return_i): Don't use when trap_exit attribute is in effect.
2200         (*return_trapa): New insn pattern.
2201         * sh-c.c: New file.
2202         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
2203         setting c_target_objs and cxx_target_objs.
2204         * t-sh: Add rule for sh-c.o.
2205
2206 2006-01-30  Richard Guenther  <rguenther@suse.de>
2207
2208         PR c++/23372
2209         * gimplify.c (gimplify_target_expr): Handle easy cases
2210         without creating a temporary.
2211
2212 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
2213
2214         * vec.h (safe_grow): Remove duplicated line.
2215
2216 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
2217
2218         PR 25874
2219         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
2220         (expand_omp): ... here.
2221         (expand_omp_parallel): Only remove barriers for combined
2222         parallel+workshare constructs.
2223
2224 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2225
2226         Revert
2227
2228         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
2229         * tree.c (build_qualified_type): Chain the new type to the original
2230         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
2231         a POINTER_TYPE or a REFERENCE_TYPE respectively.
2232         (build_pointer_type_for_mode): Only return unqualified types.
2233         (build_reference_type_for_mode): Likewise.
2234
2235 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
2236
2237         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
2238         * Makefile.in (CXX_COMPAT_WARN): Define.
2239         * configure: Regenerate.
2240
2241 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2242
2243         PR tree-opt/25911
2244         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
2245         to an if check.
2246
2247 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2248
2249         * toplev.c: Fix thinko.
2250
2251 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2252             Marcin Dalecki  <martin@dalecki.de>
2253
2254         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
2255         (push_srcloc): Use XNEW.
2256         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
2257
2258 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
2259
2260         * df-core.c (df_set_blocks): Deleted all variable.
2261
2262 2006-01-28  Ian Lance Taylor  <ian@airs.com>
2263
2264         * cgraphunit.c (cgraph_assemble_pending_functions): Call
2265         cgraph_output_pending_asms.
2266
2267 2006-01-28  Zack Weinberg  <zackw@panix.com>
2268
2269         * c.opt: Add -W(no-)overlength-strings.
2270         * doc/invoke.texi: Document it.
2271         * c-opts.c (c_common_handle_option): -pedantic implies
2272         -Woverlength-strings, if not explicitly disabled already.
2273         (c_common_post_options): -Woverlength-strings defaults to off, and
2274         is always off for C++.
2275         * c-common.c (fix_string_type): Issue warning about strings longer
2276         than is portable only if warn_overlength_strings.  Rearrange code
2277         a little for clarity.
2278         * configure.in: Check for -Wno-overlength-strings as well before
2279         enabling -pedantic in stage 1.
2280         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
2281         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
2282
2283         * genconditions.c (write_header, write_one_condition)
2284         (write_conditions, write_writer): Consolidate very long strings
2285         that were broken up to fit in C89 portable limit.  Don't use
2286         printf when fputs will do.
2287
2288 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
2289
2290         * combine.c (simplify_comparison <AND>): Check
2291         TRULY_NOOP_TRUNCATION before start using a subreg.
2292
2293         * config/mips/mips.md (*branch_zero<mode>,
2294         *branch_zero<mode>_inverted, *branch_equality<mode>,
2295         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
2296         Remove mode check from comparisons.
2297
2298 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
2299
2300         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
2301
2302 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2303
2304         * expmed.c (const_mult_add_overflow_p): Remove.
2305         * expr.h: Remove the prototype for const_mult_add_overflow_p.
2306
2307         * recog.c (validate_replace_rtx_subexp): Remove.
2308         * recog.h: Remove the prototype for
2309         validate_replace_rtx_subexp.
2310
2311         * integrate.h: Remove the prototype for
2312         copy_decl_for_inlining.
2313         * rtl.h: Remove the prototype for mark_constant_function.
2314         * tree-vectorizer.h: Remove the prototype for
2315         vect_strip_conversion.
2316
2317         * modulo-sched.c (create_partial_schedule,
2318         free_partial_schedule, reset_partial_schedule): Make them
2319         static.
2320
2321         * hooks.c (hook_bool_rtx_int_false): Remove.
2322         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
2323
2324 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
2325
2326         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2327         and -mlong-double-128 are incompatible.
2328         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
2329         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
2330         (TARGET_LIBGCC2_CFLAGS): Define.
2331         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
2332         (TARGET_LIBGCC2_CFLAGS): Same.
2333         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
2334
2335 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2336
2337         PR c/19606.
2338         * c-typeck.c (build_binary_op): Perform implicit casts of
2339         operands before shortening them.
2340
2341         * cfgloopmanip.c (split_loop_bb): Remove.
2342         * cfgloop.h: Remove the prototype for split_loop_bb.
2343
2344         * cfgloop.c (flow_loop_outside_edge_p): Remove.
2345         * cfgloop.h: Remove the prototype for
2346         flow_loop_outside_edge_p.
2347
2348         * emit-rtl.c (init_virtual_regs): Make it static.
2349         * function.h: Remove the prototype for init_virtual_regs.
2350
2351         * recog.c (peephole2_optimize): Make it static.
2352         * recog.h: Remove the prototype for peephole2_optimize.
2353
2354 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2355
2356         * df-scan.c (df_record_entry_block_defs): Check if
2357         INCOMING_RETURN_ADDR_RTX is defined.
2358
2359 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
2360             Kenneth Zadeck <zadeck@naturalbridge.com>
2361
2362         PR rtl-optimization/24762
2363         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2364         * targhooks.c (hook_void_bitmap): New hook prototype.
2365         * targhoohs.h (hook_void_bitmap): Ditto.
2366         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
2367         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
2368         * target.h (live_on_entry): New function pointer.
2369         * df-scan.c (df_all_hard_regs): Removed.
2370         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
2371         (df_scan_free_internal): Added df->entry_block_defs.
2372         (df_scan_alloc): Ditto.
2373         (df_scan_dump): Ditto.
2374         (df_uses_record): Plumbed flag field properly thru calls.
2375         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
2376         This part fixes PR24762.
2377         (df_bb_refs_record): Added code to make the frame and arg
2378         pointers live in EH blocks.
2379         (df_refs_record): Added call to df_record_entry_block_defs.
2380         (df_record_entry_block_defs): New function.
2381         * df-core.c: Added comments to describe new artifical defs.
2382         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
2383         (entry_block_defs): New field in struct df.
2384         (df_all_hard_regs): Deleted.
2385         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2386         * df-problems.c (df_ru_bb_local_compute_process_def):
2387         Added code to handle artifical defs in the entry to a function.
2388         (df_ru_bb_local_compute): Ditto.
2389         (df_rd_bb_local_compute_process_def):  Ditto.
2390         (df_rd_bb_local_compute): Ditto.
2391         (df_lr_bb_local_compute): Ditto.
2392         (df_ur_bb_local_compute): Ditto.
2393         (df_urec_bb_local_compute):  Ditto.
2394         (df_chain_create_bb):  Ditto.
2395         (df_ur_local_finalize): Removed entry.
2396         (df_urec_init): Ditto.
2397         (df_urec_local_finalize): Ditto.
2398         (df_ri_bb_compute): Added detection of last use of pseudos.
2399         * Makefile.in (df-scan.o): Updated dependencies.
2400         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
2401         * config/mips/mips.c (mips_set_live_on_entry): Added.
2402         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
2403         for target hook.
2404         * dce.c (marked_insn_p): Added code to handle artifical defs.
2405
2406 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2407
2408         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
2409         intrinsic.
2410         (_mm_cvtsi128_si64): Likewise.
2411         (_mm_cvtsd_si64): Likewise.
2412         (_mm_cvttsd_si64): Likewise.
2413         (_mm_cvtsi64_sd): Likewise.
2414         (_mm_cvtsi64_si128): Likewise.
2415         * config/i386/mmintrin.h (_m_from_int64): Likewise.
2416         (_mm_cvtsi64_m64): Likewise.
2417         (_m_to_int64): Likewise.
2418         (_mm_cvtm64_si64): Likewise.
2419         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
2420         (_mm_cvttss_si64): Likewise.
2421         (_mm_cvtsi64_ss): Likewise.
2422         (_mm_cvtss_f32): Likewise.
2423
2424 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
2425
2426         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
2427         for pragma redefine_extname.
2428
2429 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
2430
2431         PR target/25864
2432         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
2433         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
2434         -mno-minimal-toc to previous content.
2435         (bispecs): Remove goal.
2436         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
2437         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
2438         compatibility aliases on powerpc-*-*gnu*.
2439         * config/rs6000/libgcc-ppc-glibc.ver: New file.
2440         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
2441         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
2442         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
2443         (ldblspecs): New goal.
2444         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
2445         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
2446         _df_to_tf.
2447         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
2448         L_sf_to_tf or L_df_to_tf is defined.
2449
2450 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
2451             Alan Modra  <amodra@bigpond.net.au>
2452
2453         PR target/25864
2454         * config/rs6000/linux.h (POWERPC_LINUX): Define.
2455         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
2456         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
2457         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
2458         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
2459         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
2460         (rs6000_override_options): Initialize rs6000_ieeequad.
2461         Initialize TFmode format to ibm_extended_format if not
2462         TARGET_IEEEQUAD.
2463         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
2464         ieeelongdouble.
2465         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
2466         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
2467         (function_arg_advance): IBM long double passed in two FPRs, not
2468         split.
2469         (function_arg): IBM long double passed in FPRs.
2470         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
2471         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
2472         Only multireg GPR aligned.
2473         (rs6000_init_libfuncs): Enable IBM long double functions if not
2474         IEEEQUAD.
2475         (rs6000_generate_compare): Use IBM long double compare if not
2476         TARGET_IEEEQUAD.
2477         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
2478         (TARGET_IEEEQUAD): Define.
2479         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
2480         not TARGET_IEEEQUAD.
2481         * config/rs6000/rs6000.md: Enable TFmode patterns if
2482         !TARGET_IEEEQUAD.
2483         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
2484         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2485         and -mlong-double-128 are incompatible.
2486         * doc/invoke.texi (-mabi): Collect options together.  Add
2487         ibmlongdouble and ieeelongdouble.
2488
2489 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
2490
2491         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
2492         opaque type.
2493         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
2494         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
2495         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
2496         * rtl.h (rtunion_def): Remove rt_ptr.
2497         (X0PTR): Delete.
2498         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
2499         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
2500         * config/i386/winnt.c (i386_pe_mark_dllexport)
2501         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
2502
2503 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
2504
2505         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
2506
2507 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
2508
2509         PR other/24829
2510         PR target/24831
2511         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
2512         pthread_key_delete.  From John David Anglin.  gthrw-ify
2513         pthread_getunique_np only if it it's not a macro.  Delete
2514         UNUSED macro.
2515         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
2516         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
2517         __gthread_objc_condition_signal, __gthread_key_delete): Add
2518         "__attribute__ ((__unused__))" to unused arguments.
2519         (__gthread_recursive_mutex_init_function): Add missing return.
2520         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
2521         gthr-posix95.h: Use macro-based approach for name redirection
2522         on targets missing weakref.
2523
2524 2006-01-26  Zack Weinberg  <zackw@panix.com>
2525
2526         * genconditions.c (write_header): In generated code, #ifdef out
2527         all includes and fake declarations, except includes of bconfig.h
2528         and system.h, unless GCC_VERSION >= 3001.  Do not include
2529         gensupport.h in any case.
2530         (write_conditions): Generate a definition of struct c_test.  Add
2531         a comment to the generated #endif.
2532         (write_one_condition): Escape backslashes in string too.
2533         (write_writer): Generated code must escape backslashes and quote
2534         marks (but not newlines) in the strings it writes.
2535         * Makefile.in (build/gencondmd.o): Update dependencies.
2536
2537 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2538
2539         PR target/25961
2540         * Makefile.in (insn-automata.o): Add header file dependencies.
2541         * genautomata.c: Add includes.
2542
2543 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2544
2545         PR target/25961
2546         * Makefile.in (insn-automata.o): Add -Wno-error flag.
2547
2548 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2549
2550         * configure.ac: Expect target tools paths to be passed from the toplevel
2551         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
2552         AS_SET_VAR_IF.
2553         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
2554
2555 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
2556
2557         PR c/25892
2558         * c.opt (Wpointer-sign): Init to -1.
2559         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
2560         OPT_pedantic, to 0 otherwise.
2561         * doc/invoke.texi: Update.
2562
2563 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2564
2565         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
2566         constants provided by 80387 instructions in the destination mode.
2567
2568 2006-01-26  Richard Guenther  <rguenther@suse.de>
2569             Andrew Pinski  <pinskia@physics.uc.edu>
2570
2571         PR tree-opt/21470
2572         partial PR tree-opt/17064
2573         * tree-ssa-structalias.c (intra_create_variable_infos):
2574         Create heap variables for incoming parameters if
2575         flag_argument_noalias > 1.
2576         (find_what_p_points_to): Look through default defs of
2577         parameter decls.
2578
2579 2006-01-26  Jeff Law  <law@redhat.com>
2580
2581         PR ada/25900
2582         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
2583         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
2584         within the VR_RANGE, use the VR_RANGE as the result, not the
2585         VR_ANTI_RANGE.
2586         (adjust_range_with_scev): Reject ranges from SCEV which are out of
2587         bounds for the type.
2588
2589 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
2590
2591         * tree-ssa-alias.c (maybe_create_global_var): Change
2592         subvar walking to an assertion that we don't have subvar'd variables.
2593
2594 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
2595
2596         PR C/25861
2597         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
2598         Use a new variable, inner.  PARM_DECLs are always non-weak.
2599
2600 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
2601
2602         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
2603         --disable-checking.
2604
2605 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
2606
2607         * config/mips/mips.md (*clear_upper32): New combiner pattern.
2608
2609 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
2610
2611         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
2612         (smax_insn, smin_insn, smax_0, smin_0): New.
2613
2614 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
2615
2616         PR target/25947
2617         * config/cris/cris.c (cris_order_for_addsi3): New function.
2618         * config/cris/cris-protos.h: Prototype it.
2619         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
2620         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
2621         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
2622         (split for "op.S1 [rx=rx+i],ry (swapped)")
2623         (split for "op(s|u).S1 [rx=rx+i],ry")
2624         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
2625         Apply cris_order_for_addsi3 when generating addsi3 insns.
2626
2627 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2628
2629         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
2630         (TREE_BLOCK): Add call to EXPR_CHECK.
2631
2632 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2633
2634         PR 25886
2635         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
2636         * tree-pretty-print.c (dump_omp_clause): Extract from ...
2637         (dump_omp_clauses): ... here.
2638         (dump_generic_node): Handle OMP_CLAUSE.
2639         * tree.c (omp_clause_num_ops): New.
2640         (omp_clause_code_name): New.
2641         (tree_code_size): Handle OMP_CLAUSE.
2642         (tree_size): Likewise.
2643         (make_node): Document handling of OMP_CLAUSE.
2644         (tree_node_structure): Handle OMP_CLAUSE.
2645         (omp_clause_check_failed): New.
2646         (omp_clause_range_check_failed): New.
2647         (omp_clause_operand_check_failed): New.
2648         (build_omp_clause): New.
2649         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
2650         * tree.h (enum omp_clause_code): Declare.
2651         (OMP_CLAUSE_SUBCODE_CHECK): Define.
2652         (OMP_CLAUSE_RANGE_CHECK): Define.
2653         (OMP_CLAUSE_ELT_CHECK): Define.
2654         (omp_clause_check_failed): Declare.
2655         (omp_clause_operand_check_failed): Declare.
2656         (omp_clause_range_check_failed): Declare.
2657         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
2658         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
2659         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
2660         (OMP_CLAUSE_LASTPRIVATE): Likewise.
2661         (OMP_CLAUSE_IF_EXPR): Likewise.
2662         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
2663         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
2664         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
2665         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
2666         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
2667         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
2668         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
2669         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
2670         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
2671         (OMP_CLAUSE_CODE): Define.
2672         (OMP_CLAUSE_SET_CODE): Define.
2673         (OMP_CLAUSE_CODE): Define.
2674         (OMP_CLAUSE_OPERAND): Define.
2675         (struct tree_omp_clause): Declare.
2676         (union tree_node): Add field 'omp_clause'.
2677         * treestruct.def (TS_OMP_CLAUSE): Define.
2678         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
2679         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
2680         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
2681         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
2682         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
2683         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
2684         (OMP_CLAUSE): Define.
2685         * print-tree.c (print_node): Handle OMP_CLAUSE.
2686         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
2687         * c-typeck.c: Likewise.
2688         * gimplify.c: Likewise.
2689         * c-omp.c: Likewise.
2690         * tree-nested.c: Likewise.
2691         * tree-inline.c: Likewise.
2692         * c-parser.c: Likewise.
2693         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
2694         clauses.
2695
2696 2006-01-25  Roger Sayle  <roger@eyesopen.com>
2697
2698         PR rtl-optimization/25703
2699         * combine.c (try_combine): Handle zero_extract and strict_low_part
2700         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
2701
2702 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
2703
2704         * global.c: Fix comment typos.
2705
2706 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
2707
2708         PR target/25758
2709         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
2710         Use output_addr_const instead of assemble_name.
2711
2712 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
2713
2714         * Makefile.in (sched-vis.o): Update dependencies.
2715         * haifa-sched.c (sched_finish): Clear current_sched_info.
2716         * cfg.c (dump_bb_info): New, split from dump_flow_info.
2717         (dump_flow_info): Call it.
2718         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
2719         a slim RTL dump.
2720         * basic-block.h (dump_bb_info): Declare.
2721         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
2722         option, and apply options only for dump files whose TDF_RTL,
2723         TDF_TREE, or TDF_IPA bits match.
2724         * rtl.h: Declare new functions exported from sched-vis.c.
2725         * sched-vis.c: Enable also if scheduling is not used.
2726         (print_value): Print the mode of registers if not inside scheduling.
2727         (print_insn): Make it work outside the scheduler.  Beautify the output
2728         a bit.
2729         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
2730
2731 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2732
2733         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
2734         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
2735         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
2736         depending on the value of CONSTANT_POOL_ADDRESS_P.
2737         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
2738         SYMBOL_REF_DECL.
2739         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
2740         rather than SYMBOL_REF_DECL.
2741         (rtx_constant_pool): Remove const_rtx_sym_htab.
2742         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
2743         (init_varasm_status): Don't initialize const_rtx_sym_htab.
2744         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
2745         Remove handling of const_rtx_sym_htab.
2746         (find_pool_constant): Delete.
2747         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
2748         rather than find_pool_constant.
2749         (get_pool_constant_for_function): Delete.
2750         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
2751         find_pool_constant.
2752         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
2753         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
2754         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
2755         (SYMBOL_REF_CONSTANT): New macro.
2756         (get_pool_constant_for_function): Delete.
2757         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
2758         rather than SYMBOL_REF_DECL.
2759         (i386_pe_mark_dllimport): Likewise.
2760         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
2761         rather than SYMBOL_REF_DECL.
2762         * config/darwin.c (machopic_indirect_data_reference): Likewise.
2763         (machopic_indirect_call_target): Likewise.
2764
2765 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
2766
2767         * flow.c (delete_noop_moves): Add missing EOL to dump message.
2768
2769 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2770
2771         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
2772
2773 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
2774
2775         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
2776
2777 2006-01-24  David Daney  <ddaney@avtrex.com>
2778
2779         PR java/25816
2780         * configure.ac (enable_tls): New enable option.
2781         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
2782         * configure: Regenerate.
2783         * doc/install.texi (--enable-tls): Document new option.
2784         (--disable-tls): Ditto.
2785
2786 2006-01-24  Richard Henderson  <rth@redehat.com>
2787
2788         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
2789         * alias.c (true_dependence): Respect it.
2790         (canon_true_dependence, write_dependence_p): Likewise.
2791         * builtins.c (get_builtin_sync_mem): Set it.
2792
2793 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
2794
2795         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
2796         efficient way.
2797
2798 2006-01-24  DJ Delorie  <dj@redhat.com>
2799
2800         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2801         for storing constants in single-bit bitfields.
2802
2803 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2804
2805         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2806
2807 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2808
2809         PR tree-opt/25860
2810         * tree-ssa-pre.c (phi_translate): Return NULL
2811         for AGGREGATE_TYPE's.
2812
2813 2006-01-24  Zack Weinberg  <zackw@panix.com>
2814
2815         * genautomata.c (process_state_for_insn_equiv_partition):
2816         Use xcalloc for insn_arcs_array.
2817         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2818         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2819
2820 2006-01-24  Richard Henderson  <rth@redhat.com>
2821
2822         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2823         update all callers.
2824
2825 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2826
2827         PR rtl-optimization/25890
2828         PR rtl-optimization/25905
2829         * combine.c (expand_compound_operation, expand_field_assignment):
2830         Fail if the bitfield's final position is out of bounds.
2831
2832 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2833
2834         PR middle-end/25930
2835         * cgraphunit.c (cgraph_output_in_order): Don't clear
2836         cgraph_asm_nodes until after asm strings have been output.
2837
2838 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2839
2840         * fix-header.c (read_scan_file): Add new parameter imultilib when
2841         calling register_include_chains.
2842
2843 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2844
2845         * omp-low.c: Update documentation.
2846
2847 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2848             Daniel Berlin  <dberlin@dberlin.org>
2849
2850         PR tree-opt/25315
2851         PR tree-opt/25857
2852         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2853         return from the function.
2854
2855 2006-01-22  Zack Weinberg  <zackw@panix.com>
2856
2857         * rtl.def (match_code): Add second argument.
2858         * genpreds.c (write_extract_subexp): New function.
2859         (write_match_code): Add path argument.  Use write_extract_subexp.
2860         (write_predicate_expr): Pass path to write_match_code.
2861         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2862         not perform a mode test.
2863         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2864         a subexpression does not constrain the top-level code set.
2865         * read-rtl.c (read_rtx_variadic): New function.
2866         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2867         * doc/md.texi: Document new notation.
2868         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2869         (cmpsi_operand): ... here, using new notation.
2870
2871 2006-01-22  Zack Weinberg  <zackw@panix.com>
2872
2873         * varray.c: Remove GENERATOR_FILE #ifdefs.
2874
2875 2006-01-22  Zack Weinberg  <zackw@panix.com>
2876
2877         * genautomata.c (output_reserved_units_table): Emit nothing if
2878         description->query_units_num is zero.  Remove extra blank line.
2879         (output_cpu_unit_reservation_p): Short circuit
2880         if description->query_units_num is zero.
2881
2882 2006-01-22  Zack Weinberg  <zackw@panix.com>
2883
2884         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2885         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2886         nor any of the random handful of variables that used to be necessary
2887         when this program was linked with rtlanal.o.  Prune set of forward
2888         function declarations.
2889         (struct attr_desc): Remove static_p field.
2890         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2891         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2892         (attr_string): Do not read the character one past the length of
2893         the string.
2894         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2895         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2896         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2897         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2898         (make_automaton_attrs): New.
2899         (main): Do not call into genautomata.  Call local gen_bypass
2900         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2901         Remove special case for insn_alts.
2902         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2903         varray.h (leftover from previous change).  Prune set of forward
2904         function declarations.  Remove state_alts fields from all
2905         structures.  Remove state_alts_table from struct automaton.
2906         Make everything except main static.  Do not maintain num_dfa_decls.
2907         Do not maintain state_alts fields of various structures.
2908         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2909         (add_arc): Remove state_alts argument.  All callers updated.
2910         (output_reserved_units_table): Emit #ifdef here...
2911         (output_tables): ...not here.  Don't generate state_alts tables.
2912         (expand_automata): Don't generate attributes.
2913         (write_automata): Don't generate state_alts functions.
2914         (main): New function.
2915         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
2916         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
2917         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
2918         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
2919         (BYPASS_P_FUNC_NAME, output_state_alts_table)
2920         (output_automata_list_state_alts_code, output_internal_state_alts_func)
2921         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
2922         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
2923         Delete.
2924         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
2925         * genattrtab.h: Delete file.
2926         * Makefile.in (OBJS-common): Add insn-automata.o.
2927         (insn-automata.o): New rule.
2928         (simple_generated_c): Add insn-automata.c.
2929         (build/genattrtab.o, build/genautomata.o): Update dependencies.
2930         (genprogmd): Add automata.
2931         (build/genattrtab): Needs no extra objects nor libraries.
2932         (build/genautomata): Needs build/vec.o and -lm.
2933
2934 2006-01-22  Zack Weinberg  <zackw@panix.com>
2935
2936         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
2937         (output_dfa_max_issue_rate, locked_states_num): Delete.
2938         (struct automaton): Add locked_states field.
2939         (output_dead_lock_vect): Save number of locked states in
2940         automaton->locked_states.  If it is zero, don't print anything.
2941         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
2942         (output_internal_dead_lock_func): Only test the dead_lock_vect
2943         for automata that have locked states.
2944         (output_statistics): Always print the number of locked states for
2945         each automaton.  Calculate total number of locked states here.
2946         (write_automata): Don't call output_dfa_max_issue_rate.
2947         * genattrtab.c: Define length_unit_log as a const variable.
2948         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
2949         max_insn_queue_index const.
2950         * final.c (length_unit_log): Declare const.
2951         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
2952
2953 2006-01-22  Zack Weinberg  <zackw@panix.com>
2954
2955         * genautomata.c:  Include vec.h, not varray.h.
2956         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
2957         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
2958         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
2959         VEC_* macros operating on appropriately typed vectors, or to
2960         malloced arrays when the size is known in advance.  Const-ify
2961         many char* variables and function arguments.  No functional changes.
2962         * Makefile.in (build/varray.o): Delete rule.
2963         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
2964         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
2965
2966 2006-01-22  Zack Weinberg  <zackw@panix.com>
2967
2968         * gensupport.c: Define get_insn_name and record_insn_name here.
2969         (read_md_rtx): Call record_insn_name as appropriate.
2970         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
2971         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
2972         * genpreds.c, genrecog.c: Don't define get_insn_name nor
2973         record_insn_name.
2974         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
2975         (BUILD_VARRAY): Delete.
2976         (genprognormal): Rename genprogmd.  Fold in all programs from
2977         genprognoprint; also attrtab.
2978         (build/genattrtab): Just mention genautomata.o and varray.o.
2979         Reorganize a bit, add comments to make the categories clearer.
2980
2981 2006-01-22  Zack Weinberg  <zackw@panix.com>
2982
2983         * genconditions.c (condition_table, add_condition): Delete.
2984         (write_conditions): Don't emit n_insn_conditions nor
2985         insn_elision_unavailable.  Issue the gcc version #ifdef here,
2986         inside the table, with no #else clause ...
2987         (write_header): ...not here.
2988         (write_writer): New function.
2989         (main): Don't initialize condition_table.  Use add_c_test.
2990         Call write_writer.
2991         * gensupport.c (init_md_reader_args_cb): Handle multiple input
2992         files on the command line.
2993         (maybe_eval_c_test): Don't check insn_elision_unavailable.
2994         Return -1 if there is no entry in the table, don't abort.
2995         (add_c_test, traverse_c_tests): New functions.
2996         * gensupport.h (insn_elision_unavailable, insn_conditions)
2997         (n_insn_conditions): Delete declarations.
2998         (add_c_test, traverse_c_tests): Declare.
2999         * read-rtl.c: Include gensupport.h.
3000         (read_conditions): New function.
3001         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3002         (read_rtx_1): If we get EOF when we were looking for an initial
3003         open paren, return 0.  Call read_conditions when appropriate.
3004         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3005         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3006         or change them to build/gencondmd.o, as appropriate.  Remove
3007         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3008         from $(simple_generated_c).  For all files remaining in those
3009         two lists, add insn-conditions.md to the generator command line.
3010         Give insn-constants.h/s-constants their own rules.  Add rules
3011         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3012         (build/read-rtl.o): Depend on gensupport.h.
3013         (genprognormal): Include preds.
3014         (genprogearly): Rename genprognoprint; only difference is now that
3015         they don't link with $(BUILD_PRINT).
3016         * dummy-conditions.c: Delete.
3017
3018 2006-01-22  Zack Weinberg  <zackw@panix.com>
3019
3020         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3021         Declare vectors of int, char, and locstr.
3022         (locstr): New typedef.
3023         (struct extraction): Make all array fields into bare pointers.
3024         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3025         (insn_code_number): Delete.
3026         (accum_extract): New struct.
3027         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3028         (gen_insn): Take insn_code_number as an argument.  Use an
3029         accum_extract structure instead of loading data directly into
3030         a struct extraction, and having to know how big it might get.
3031         (walk_rtx): Operate entirely on an accum_extract structure.
3032         (print_path): Avoid unnecessary use of printf.
3033         (print_header): New function, split out of main.  Distinguish
3034         more carefully between an unrecognizable insn and an insn that
3035         has the code number of a define_expand.
3036         (main): Pass insn_code_number to gen_insn.  Call print_header
3037         only after parsing.  Avoid unnecessary use of printf.
3038         * Makefile.in (build/vec.o): New rule.
3039         (build/genextract): Depend on build/vec.o.
3040         (build/genextract.o): Don't depend on insn-config.h.
3041
3042 2006-01-22  Zack Weinberg  <zackw@panix.com>
3043
3044         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3045         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3046         practical.  Eliminate per-generator-program link rules.
3047
3048 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3049
3050         PR middle-end/24437
3051         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3052         with a call expr to ...
3053         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3054
3055 2006-01-23  Richard Guenther  <rguenther@suse.de>
3056
3057         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3058         before make_edge with conditional EDGE_TRUE_VALUE.
3059
3060 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3061         Jan Hubicka  <jh@suse.cz>
3062         Richard Guenther  <rguenther@suse.de>
3063
3064         PR rtl-optimization/25654
3065         * cfgexpand.c (aggregate_contains_union_type): New function.
3066         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3067         for structure variables that contain a union type.
3068
3069 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3070
3071         * gengtype.c (new_structure): Return the structure.
3072         (create_option): Add an extra "next" argument.
3073         (create_field): New function.
3074         (adjust_field_rtx_def): Use create_option and create_field.
3075         Remove a now-unnecessary call to find_structure.
3076         (adjust_field_tree_def): Likewise.
3077         (note_yacc_type): Remove an unnecessary call to find_structure.
3078         * gengtype.h (new_structure): Return the structure.
3079         (create_option): Add an extra argument.
3080         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3081         (option): Adjust calls to create_option.
3082
3083 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3084
3085         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3086
3087 2006-01-22  Paul Brook  <paul@codesourcery.com>
3088         Peter Barada  <peter@the-baradas.com>
3089
3090         * config/m68k/m68k.md: Add Coldfire FPU support.
3091         Define FP mode macro and associated attributes.
3092         Use it for float mode patterns.
3093         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3094         (LIBCALL_VALUE): Use m68k_libcall_value.
3095         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3096         (m68k_function_value): Ditto.
3097         (emit_move_sequence): Ditto.
3098         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3099         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3100         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3101         (MULTILIB_EXCEPTIONS): Ditto.
3102         * config/m68k/m68k.opt: Add mcfv4e.
3103         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3104         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3105         (m68k_output_function_prologue): Save ColdFire FPU registers.
3106         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
3107         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
3108         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
3109         ColdFire FPU registers.
3110         (m68k_libcall_value, m68k_function_value): New functions.
3111         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
3112         (LIBCALL_VALUE): Use m68k_libcall_value.
3113         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
3114         (MASK_COLDFIRE): Add MASK_CFV4E.
3115         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
3116         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
3117         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
3118         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
3119         (GO_IF_LEGITIMATE_ADDRESS): Use it.
3120         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
3121         * doc/invoke.tex: Document -mcfv4e on m68k.
3122
3123 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
3124
3125         * doc/contribute.texi: Change CVS to SVN and update the corresponding
3126         URL.
3127
3128 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3129
3130         PR c++/16190
3131         * c-opts.c (c_common_handle_option): Don't include
3132         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
3133         * doc/invoke.texi (C++ Dialect Options): Document that
3134         -Wnon-virtual-dtor is no longer included in -Wall.
3135
3136 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
3137
3138         * gcov.c (print_version), gcov-dump.c (print_version),
3139         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
3140         dates.
3141
3142 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
3143
3144         * df-scan.c (problem_SCAN): Added NULL reset function.
3145         (df_scan_reset_blocks): Added code to call reset block function
3146         (df_bb_refs_delete) Fixed comment.
3147         (df_insn_refs_delete): Made tolerant of deleting non existent info
3148         for dataflow problems that need to be reset.
3149         * df-core.c (df_set_blocks): Ditto.
3150         * df.h (struct df_problem): Added reset_fun.
3151         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
3152         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
3153         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
3154         functions to clear out all references to def-use or use-def chains.
3155
3156 2006-01-21  Ben Elliston  <bje@au.ibm.com>
3157
3158         * varasm.c (assemble_real): Initialise data array.
3159
3160 2006-01-20  Paul Brook  <paul@codesourcery.com>
3161
3162         Merge from csl-arm-branch.
3163         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
3164         * config/arm/arm.md (movdi): Force operands[1] to a register
3165         if we have a non-register source.
3166         (*arm_movdi, *movdf_soft_insn): Require that one of the
3167         operands be a register.
3168         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
3169         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
3170
3171 2006-01-20  DJ Delorie  <dj@redhat.com>
3172
3173         * varasm.c (initialize_constant_valid_p): Allow pointers
3174         initialized from integer constants of lesser precision.
3175         (output_constant): Allow non-int-sized pointer modes to be
3176         initialized from integer constants.
3177
3178 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
3179
3180         PR libstdc++/25524
3181         * cppdefault.h (struct default_include): Add multilib flag.
3182         * cppdefault.c (cpp_include_defaults): Set it.
3183         * c.opt (-imultilib): New option.
3184         * c-opts.c (imultilib): New.
3185         (c_common_handle_option): Handle -imultilib.
3186         (c_common_post_options): Likewise.
3187         * c-incpath.c (add_standard_paths, register_include_chains):
3188         Likewise.
3189         * c-incpath.h (register_include_chains): Add extra parameter.
3190         * gcc.c (do_spec_1): Generate -imultilib option.
3191         (The Specs Language): Update %I description.
3192         (process_command): Update copyright notice.
3193         * doc/cppopts.texi (-imultilib): Document.
3194         * doc/invoke.texi (-imultilib): Include in option summary.
3195         (%I): Update specs documentation.
3196
3197 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3198
3199         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
3200
3201 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
3202
3203         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
3204         label numbers.
3205
3206 2006-01-20  Richard Guenther  <rguenther@suse.de>
3207         Steven Bosscher <stevenb.gcc@gmail.com>
3208
3209         PR rtl-optimization/24626
3210         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
3211         EDGE_TRUE_VALUE if in RTL mode.
3212
3213         Revert
3214         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
3215         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
3216
3217 2006-01-20  Dirk Mueller  <dmueller@suse.com>
3218
3219         PR c++/5520
3220         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
3221         instead of a special NOP marker.
3222         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
3223         NOP marker handling.
3224         * c-common.h (empty_body_warning): Add forward declaration.
3225         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
3226         Now uses IS_EMPTY_STMT() instead of special NOP markers.
3227
3228 2006-01-20  Paul Brook  <paul@codesourcery.com>
3229
3230         * Makefile.in (lang_checks): Keep going if mkdir fails.
3231
3232 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3233
3234         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
3235         be able to clean out basic block when not necessary.
3236         (df_scan_free): Fixed to properly delete information if df is
3237         unused before calling df_finish.
3238         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
3239         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
3240         or comment typos.
3241         (df_bb_refs_delete): New function.
3242         (df_refs_delete): Moved per block code to df_bb_refs_delete.
3243         * df-core.c (df_set_blocks): Added code to properly clean out
3244         unused blocks if they are not part of the blocks to consider.
3245         Added additional null check.
3246         (df_compact_blocks): Added basic block parameter to free_bb_fun to
3247         be able to clean out basic block when not necessary
3248         * df.h (df_free_bb_function): Ditto.
3249         (df_bb_refs_delete): New function.
3250         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
3251         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
3252         basic block parameter to be able to clean out basic block when not
3253         necessary.
3254         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
3255         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
3256         Fixed to properly delete information if df is unused before
3257         calling df_finish.
3258
3259 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3260
3261         PR rtl-optimization/25799
3262         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
3263         Corrected confluence operator to remove bits from op2 before oring
3264         with op1 rather than removing bits from op1.
3265         (df_ru_transfer_function): Corrected test on wrong bitmap which
3266         caused infinite loop.  Both of these problems were introduced in
3267         the dataflow rewrite.
3268
3269 2006-01-19  DJ Delorie  <dj@redhat.com>
3270
3271         * reload1.c (find_reload_regs): Note the details of reload
3272         failures in the dump file.
3273         (spill_failure): Likewise.
3274
3275 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3276
3277         * loop-iv.c: Include df.h and hashtab.h.
3278         (enum iv_grd_result): New enum.
3279         (DF_REF_IV, DF_REF_IV_SET): New macros.
3280         (struct biv_entry): New.
3281         (df, bivs): New global variables.
3282         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
3283         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
3284         Removed.
3285         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
3286         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
3287         analyzed_for_bivness_p, record_biv): New functions.
3288         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
3289         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
3290         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
3291         UD chains.
3292         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
3293         analysed.
3294         (iv_number_of_iterations): Use new interface to iv analysis.
3295         * loop-unroll.c: Do not include varray.h.
3296         (analyze_iv_to_split_insn): Use new interface to iv
3297         analysis.
3298         * loop-unswitch.c (may_unswitch_on): Ditto.
3299         * df.c (df_bitmaps_free): Only work for bbs for that structures are
3300         allocated.
3301         (df_bb_modify): Realloc tables to the new index.
3302         (df_find_use): New function.
3303         * df.h (df_find_use): Declare.
3304         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
3305         outmode.
3306         * cfgloop.h (struct rtx_iv): Remove analysed field.
3307         (iv_get_reaching_def): Removed.
3308         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
3309         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
3310         (loop-iv.o): Add df.h and hashtab.h dependency.
3311         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
3312
3313 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
3314
3315         PR target/25668
3316         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
3317         Double TFmode.
3318         (__floatundisf, __floatundidf): Likewise.
3319         * libgcc2.h (IS_IBM_EXTENDED): Define.
3320
3321 2006-01-19  DJ Delorie  <dj@redhat.com>
3322
3323         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
3324
3325 2006-01-19  Paul Brook  <paul@codesourcery.com>
3326
3327         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
3328         as nothrow when unwinding tables are disabled.
3329
3330 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3331
3332         PR testsuite/25171
3333         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
3334         of bit-field" when in system header.
3335
3336 2006-01-19  DJ Delorie  <dj@redhat.com>
3337
3338         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
3339         the 16 bit shift limit of the m16c.
3340
3341 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
3342
3343         PR target/22099
3344         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
3345         * config/i386/i386.c (output_set_got): Output the label if we have one
3346         for the TARGET_DEEP_BRANCH_PREDICTION case.
3347
3348 2006-01-19  Jan Hubicka  <jh@suse.cz>
3349             H.J. Lu  <hongjiu.lu@intel.com>
3350             Evandro Menezes <evandro.menezes@amd.com>
3351
3352         * invoke.texi (generic): Document
3353         (i686) Update.
3354         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
3355         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
3356         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
3357         (x86_use_incdec, x86_pad_returns): New variables
3358         (TARGET_CPU_DEFAULT_generic): New constant
3359         (TARGET_CPU_DEFAULT_NAMES): Add generic.
3360         (enum processor_type): Add generic32 and generic64.
3361         * i386.md (cpu attribute): Add generic32/generic64
3362         (movhi splitter): Behave sanely when both partial_reg_dependency and
3363         partial_reg_stall are set.
3364         (K8 splitters): Enable for generic as well.
3365         * predicates.md (incdec_operand): Use TARGET_INCDEC
3366         (aligned_operand): Avoid memory mismatch stalls.
3367         * athlon.md: Enable for generic64, new patterns for 128bit moves.
3368         * ppro.md: Enable for generic32
3369         * i386.c (generic64_cost, generic32_cost): New.
3370         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
3371         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
3372         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
3373         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
3374         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
3375         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
3376         x86_partial_reg_dependency, x86_memory_mismatch_stall,
3377         x86_accumulate_outgoing_args, x86_prologue_using_move,
3378         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
3379         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
3380         Enable for generic.
3381         (x86_use_incdec, x86_pad_returns): New.
3382         (override_options): Add generic32 and generic64, translate "generic"
3383         to generic32/generic64 and "i686" to "generic32", refuse
3384         "generic32"/"generic64" as arch target.
3385         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
3386         (ix86_reorg): Honor PAD_RETURNS.
3387
3388 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
3389
3390         * tree-pretty-print.c (dump_generic_node): Handle
3391         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
3392         * cgraph.c (cgraph_expand_queue): Rename from
3393         cgraph_analyze_queue.  Update all users.
3394         * cgraphunit.c (cgraph_assemble_pending_functions): Process
3395         cgraph_expand_queue.
3396         (cgraph_expand_all_functions): Likewise.
3397         (cgraph_finalize_pending_functions): Remove.  Update callers.
3398
3399         * tree.h (OMP_DIRECTIVE_P): Define.
3400         (OMP_PARALLEL_FN): Define.
3401         (OMP_PARALLEL_DATA_ARG): Define.
3402         (OMP_SECTIONS_SECTIONS): Define.
3403         * tree-pass.h (pass_expand_omp): Declare.
3404         * omp-low.c (struct omp_region): Declare.
3405         (struct omp_context): Remove fields 'parallel_type',
3406         'parallel_start_ix' and 'parallel_start_additional_args'.
3407         Update all users.
3408         (struct omp_for_data): Rename from struct expand_omp_for_data.
3409         (omp_regions): New static variable.
3410         (root_omp_region): New static variable.
3411         (find_omp_clause): Make static.
3412         (is_in_combined_parallel_ctx): Remove.
3413         (is_combined_parallel): New.
3414         (extract_omp_for_data): Move earlier in the file.
3415         (workshare_safe_to_combine_p): New.
3416         (get_ws_args_for): New.
3417         (determine_parallel_type): Move earlier in the file.
3418         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
3419         child function.
3420         (omp_copy_decl): Likewise.
3421         (create_omp_child_function): Likewise.
3422         (lookup_omp_region): New.
3423         (dump_omp_region): New.
3424         (debug_omp_region): New.
3425         (debug_all_omp_regions): New.
3426         (new_omp_region): New.
3427         (scan_omp_parallel): If parallel_nesting_level > 1, the
3428         directive is nested within another parallel directive.
3429         Set OMP_PARALLEL_FN.
3430         (scan_omp_for): Do not try to handle combined parallel+for
3431         cases.
3432         Remove FIXME comment.
3433         (scan_omp_nested): Remove.
3434         (scan_omp_1): Do not call scan_omp_nested when
3435         parallel_nesting_level is > 1.
3436         Do not change the DECL_CONTEXT of local variables found.
3437         (lookup_decl_in_outer_ctx): New.
3438         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
3439         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
3440         (lower_reduction_clauses): Rename from expand_reduction_clauses.
3441         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
3442         If CTX is nested, lookup VAR in the outer context when
3443         building copy assignment.
3444         (lower_send_clauses): Rename from expand_send_clauses.
3445         If CTX is nested, lookup VAR in the outer context when
3446         building copy assignments.
3447         (lower_send_shared_vars): Rename from expand_send_shared_vars.
3448         If CTX is nested, lookup VAR in the outer context when
3449         building copy assignments.
3450         (expand_parallel_call): Rename from build_parallel_call.
3451         Handle combined parallel+workshare cases.
3452         Re-implement to emit code into the CFG.
3453         (list2chain): New.
3454         (expand_omp_parallel): Re-implement to emit code into the CFG.
3455         Call move_sese_region_to_fn to outline the sub-graph
3456         containing the parallel region.
3457         (expand_omp_for_1): Remove.
3458         (expand_omp_for_generic): Re-implement to emit code into the
3459         CFG.
3460         (expand_omp_for_static_nochunk): Likewise.
3461         (expand_omp_for_static_chunk): Likewise.
3462         (expand_omp_for): Likewise.
3463         (expand_omp_sections): Likewise.
3464         (remove_exit_barriers): New.
3465         (expand_omp_synch): New.
3466         (expand_omp): New.
3467         (build_omp_regions_1): New.
3468         (build_omp_regions): New.
3469         (execute_expand_omp): New.
3470         (gate_expand_omp): New.
3471         (pass_expand_omp): Define.
3472         (lower_omp_sections): Rename from expand_omp_sections.
3473         Set OMP_SECTIONS_SECTIONS.
3474         (lower_omp_single_simple): Rename from expand_omp_single_simple.
3475         (lower_omp_single_copy): Rename from expand_omp_single_copy.
3476         (lower_omp_single): Rename from expand_omp_simple.
3477         (lower_omp_master): Rename from expand_omp_master.
3478         (lower_omp_ordered): Rename from expand_omp_ordered.
3479         (lower_omp_critical): Rename from expand_omp_critical.
3480         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
3481         (lower_omp_for): Re-implement.
3482         (lower_omp_parallel): Re-implement.
3483         (lower_regimplify): Rename from expand_regimplify.
3484         (lower_omp_1): Rename from expand_omp_1.
3485         If there are syntax errors in the program, replace every
3486         OpenMP directive with NOP.
3487         Call lower_omp_* instead of expand_omp_*.
3488         (lower_omp): Rename from expand_omp.
3489
3490         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
3491         * tree-gimple.h (enum omp_parallel_type): Remove.
3492         (gimple_boolify): Declare extern.
3493         (find_omp_clause, determine_parallel_type): Remove.
3494
3495         * gimple-low.c (lower_omp_directive): New.
3496         (lower_stmt): Call it.
3497         (record_vars_into): Move from ...
3498         (record_vars): ... here.
3499         Call record_vars_into with current_function_decl.
3500
3501         * gimplify.c (struct gimplify_ctx): Remove fields
3502         combined_pre_p and combined_ctxp.  Update users.
3503         (get_formal_tmp_var): Add documentation.
3504         (gimple_boolify): Make extern.
3505         (gimplify_expr_in_ctx): Remove.  Update callers.
3506         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
3507         will always be a BIND_EXPR.
3508         (gimplify_expr): Handle OMP_RETURN_EXPR.
3509         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
3510         (OMP_PARALLEL): Add 3 operands.
3511         (OMP_SECTIONS): Add 1 operand.
3512         (OMP_RETURN_EXPR): Define.
3513
3514         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
3515         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
3516         * tree-iterator.c (alloc_stmt_list): Assert that we are not
3517         creating a circular free list.
3518         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
3519
3520         * tree-flow.h (move_sese_region_to_fn): Declare.
3521         (record_vars_into): Declare.
3522         * tree-cfg.c (make_omp_sections_edges): New.
3523         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
3524         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
3525         OMP_SECTIONS and OMP_SECTION.
3526         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
3527         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
3528         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
3529         (gather_blocks_in_sese_region): New.
3530         (struct move_stmt_d): Declare.
3531         (move_stmt_r): New.
3532         (move_block_to_fn): New.
3533         (move_sese_region_to_fn): New.
3534
3535         * passes.c (init_optimization_passes): Schedule
3536         pass_expand_omp after pass_init_datastructures.
3537
3538         * tree-ssa-operands.c (get_expr_operands): Handle
3539         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
3540         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
3541
3542 2006-01-19  Jeff Law  <law@redhat.com>
3543
3544         * tree-vrp.c (extract_range_from_assert): Refine the result range
3545         if the variable referenced by the ASSERT_EXPR has a range and
3546         either the tentative result range or the previous range is a
3547         VR_ANTI_RANGE.
3548
3549 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3550
3551         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
3552
3553 2006-01-19  Jan Hubicka  <jh@suse.cz>
3554
3555         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
3556
3557 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
3558
3559         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
3560         (expand_compound_operation, expand_field_assignment): Fail if the
3561         bit lengths of an extract operation are out of range.
3562         (make_extraction): Compute wanted_inner_mode based on the position
3563         and length of the extraction.  Make it extraction_mode for non-constant
3564         positions, and do not modify offset in that case.  When generating a
3565         new MEM, use a mode that can hold the extraction while keeping correct
3566         alignment.  Remove code that supported MEMs wrapped by USEs.
3567         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
3568
3569 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
3570
3571         * config/s390/s390.md ("Y", "y"): New mode attribute.
3572         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
3573         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
3574         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
3575         "*addsi3_imm_cc", "*addsi3_carry1_cc",
3576         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
3577         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
3578         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
3579         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
3580         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
3581         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
3582         "addsi3", "subsi3"): Insn patterns removed.
3583         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
3584         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
3585         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
3586         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
3587         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
3588         "*sub<mode>3_cconly2"): New insn patterns.
3589         ("addsi3", "subsi3"): New expanders.
3590
3591 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
3592
3593         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
3594         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
3595         existing STMT_VINFO_VECTYPE if available.
3596         (vect_mark_relevant): Add special handling for stmts that are
3597         marked as STMT_VINFO_IN_PATTERN_P.
3598         (vect_analyze_loop): Call vect_pattern_recog.
3599         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
3600         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
3601         stmt_info.
3602         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
3603         (vect_recog_func_ptr): New function-pointer type.
3604         * tree-vect-patterns.c: New file.
3605         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
3606         (vect_recog_dot_prod_pattern, vect_pattern_recog):
3607         (vect_pattern_recog_1): New functions.
3608         (vect_pattern_recog_funcs): New array of function pointers.
3609
3610         * tree-vectorizer.h (ternary_op): New enum value.
3611         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
3612         declaration. Revised documentation. Removed redundant dump prints.
3613         Removed redundant argument. Added support for reduction patterns.
3614         (vectorizable_reduction): Added support for reduction patterns.
3615         (vect_transform_stmt): Added support for patterns.
3616
3617         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
3618         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
3619         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
3620         (expand_widen_pattern_expr): New function.
3621         (init_optabs): Initialize new optabs udot_prod_optab,
3622         sdot_prod_optab.
3623         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
3624         (sdot_prod_optab, udot_prod_optab): Define new optabs.
3625         (expand_widen_pattern_expr): New function declaration.
3626         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
3627         tree-codes.
3628         * tree-inline.c (estimate_num_insns_1): Added cases for new
3629         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3630         * tree-pretty-print.c (dump_generic_node): Likewise.
3631         (op_prio): Likewise.
3632         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3633         * tree-ssa-operands.c (get_expr_operands): Added case for
3634         DOT_PROD_EXPR.
3635         * tree-vect-patterns.c (widened_name_p): New function.
3636         (vect_recog_dot_prod_pattern): Added function implementation.
3637         * tree-vect-transform.c (get_initial_def_for_reduction): Added
3638         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
3639         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
3640         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
3641
3642         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
3643         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
3644         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
3645         (init_optabs): Initialize new optabs widen_ssum_optab,
3646         widen_usum_optab.
3647         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
3648         (widen_ssum_optab, widen_usum_optab): Define new optabs.
3649         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
3650         use instead of type of def.
3651         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
3652         function implementation.
3653         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
3654         widen_ssumv8hi): New.
3655
3656         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
3657         patterns.
3658
3659 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3660
3661         PR c/25805
3662         * c-decl.c (add_flexible_array_elts_to_size): New function.
3663         (finish_decl): Use it.
3664
3665 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
3666
3667         * diagnostic.h: Include options.h.
3668         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
3669         dependancies for diagnostic.h.
3670         * Makefile.in (DIAGNOSTIC_H): Add options.h.
3671
3672 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
3673
3674         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
3675         (ssa_ro_call_cache_valid): Ditto.
3676         * tree-ssa-alias.c (sort_tags_by_id): New function.
3677         (init_transitive_clobber_worklist): Ditto.
3678         (add_to_worklist): Ditto.
3679         (mark_aliases_call_clobbered): Ditto.
3680         (compute_tag_properties): Ditto.
3681         (set_initial_properties): Ditto.
3682         (compute_call_clobbered): Ditto.
3683         (compute_may_aliases):  Call compute_call_clobbered and grouping.
3684         (compute_flow_sensitive_aliasing): Remove clobbering related code.
3685         (compute_flow_insensitive_aliasing): Grouping now happens in our
3686         caller.
3687         (setup_pointers_and_addressables): Remove clobbering related code.
3688         (add_may_alias): Ditto.
3689         (replace_may_alias): Ditto.
3690         (get_nmt_for): Ditto.
3691         (create_global_var):
3692         (is_escape_site): Return an escape_type enumeration.
3693         * tree-flow-inline.h (is_call_clobbered):  Global var does not
3694         imply call clobbered.
3695         (mark_call_clobbered): Take a reason for marking this. Remove
3696         marking of globalness, and cache invalidation.
3697         (clear_call_clobbered): Remove cache invalidation code.
3698         * tree-dfa.c (dump_variable): If details is on, dump the reason
3699         for escaping.
3700         * tree-outof-ssa.c (create_temp): Copy escape mask from original
3701         variable.
3702         * tree-flow.h (struct ptr_info_def): Add escape mask member.
3703         (struct var_ann_d): Ditto.
3704         (enum escape_type): New.
3705         (mark_call_clobbered): Adjust prototype.
3706         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
3707         are never call clobbered.
3708         Record reasons for escaping.
3709         * tree-ssa-structalias.h (is_escape_site): Update prototype.
3710         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
3711         (ssa_ro_call_cache_valid): Ditto.
3712         (clobbered_v_may_defs): Ditto.
3713         (clobbered_vuses): Ditto.
3714         (ro_call_vuses): Ditto.
3715         (clobber_stats): New.
3716         (init_ssa_operands): Zero out clobber stats.
3717         (fini_ssa_operands): Print out clobber stats.
3718         (get_call_expr_operands): Pass callee fndecl to
3719         add_call_read_ops).
3720         (add_call_clobber_ops): Remove use of cache.
3721         Add use of PURE_CONST information.
3722         (add_call_read_ops): Remove use of cache.
3723         Add use of static not_read information.
3724
3725 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
3726
3727         Introduce TLS descriptors for i386 and x86_64.
3728         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
3729         (TARGET_ANY_GNU_TLS): New macro.
3730         (enum tls_dialect): Added TLS_DIALECT_GNU2.
3731         (struct machine_function): Add tls_descriptor_call_expanded_p.
3732         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
3733         (ix86_current_function_calls_tls_descriptor): Likewise.
3734         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
3735         (override_options): Introduce gnu2 tls dialect.
3736         (ix86_frame_pointer_required): Functions containing TLSCALLs are
3737         not leaves.
3738         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
3739         Likewise.
3740         (legitimize_tls_address): Adjust logic for GNU2 TLS.
3741         (ix86_init_machine_status): Initialize new field.
3742         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
3743         (ix86_tls_module_base): New.
3744         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
3745         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
3746         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
3747         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
3748         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
3749         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
3750         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
3751         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
3752         * config/i386/predicates.md (tls_modbase_operand): New.
3753         (tp_or_register_operand): New.
3754
3755 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
3756
3757         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
3758         (look_for_address_of): Ditto.
3759         (ipa_init): Walk the function decls.
3760         (static_execute): Don't set readonly on FUNCTION_DECL's.
3761
3762 2006-01-18  Roger Sayle  <roger@eyesopen.com>
3763
3764         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
3765         for shifts where the source and destination registers are different.
3766
3767 2006-01-18  Paul Brook  <paul@codesourcery.com>
3768
3769         Merge from csl-arm-branch.
3770         2005-03-14  Julian Brown  <julian@codesourcery.com>
3771         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
3772         (aeabi_llsl): Likewise.
3773         (ashrdi3): Likewise.
3774         (aeabi_lasr): Likewise.
3775         (lshrdi3): Likewise.
3776         (aeabi_llsr): Likewise.
3777         2005-03-10  Julian Brown  <julian@codesourcery.com>
3778         * config.gcc: Disable shared libgcc for SymbianOS.
3779         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
3780
3781 2006-01-18  DJ Delorie  <dj@redhat.com>
3782
3783         * c-pragma.c (handle_pragma_diagnostic): New.
3784         (init_pragma): Register it.
3785         * doc/extend.texi: Document it.
3786
3787         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
3788         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
3789         (diagnostic_context): Add classify_diagnostic[].
3790         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
3791         as errors if they're overridden to DK_WARNING.
3792         (diagnostic_initialize): Initialize classify_diagnostic[].
3793         (diagnostic_set_kind_override): New.
3794         (diagnostic_report_diagnostic): Check for kind changes.
3795         * opts.c (common_handle_option): Take lang_mask.  Update callers.
3796         Handle OPT_Werror_.
3797         * common.opt (Werror=): New.
3798         * doc/invoke.texi: Document -Werror=*
3799
3800 2006-01-18  Jeff Law  <law@redhat.com>
3801
3802         * tree-vrp.c (test_for_singularity): Correct test for new
3803         min limit.  Use operand_equal_p rather than pointer equality
3804         for testing if new min/max values are equal.
3805
3806         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3807         using range information until after propagation and folding.
3808
3809 2006-01-18  Richard Henderson  <rth@redhat.com>
3810             Aldy Hernandez  <aldyh@redhat.com>
3811             Jakub Jelinek  <jakub@redhat.com>
3812             Diego Novillo  <dnovillo@redhat.com>
3813
3814         * omp-low.c: New file.
3815         * c-omp.c: New file.
3816
3817 2006-01-18  Richard Henderson  <rth@redhat.com>
3818             Jakub Jelinek  <jakub@redhat.com>
3819             Diego Novillo  <dnovillo@redhat.com>
3820
3821         * doc/invoke.texi: Document -fopenmp.
3822         * tree-dump.h (debug_function): Declare.
3823         * hooks.c (hook_bool_tree_bool_false): New function.
3824         (hook_tree_tree_null): Remove.
3825         (hook_tree_tree_tree_null): New.
3826         * hooks.h: Update to match.
3827         * tree-pretty-print.c (debug_tree_chain): New.
3828         (print_generic_expr): Handle TDF_CHAIN.
3829         (dump_generic_node): Handle BLOCK.
3830         Do not abort with incomplete SWITCH_EXPRs.
3831         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3832         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3833         print space after directive name.
3834         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3835         Handle OMP_MASTER and OMP_ORDERED.
3836         Handle printing of OMP_BODY just in one place, goto
3837         dump_omp_body in the rest of OMP_* nodes that have
3838         OMP_BODY.
3839         Don't handle clause nodes here.  Update omp statements to
3840         use dump_omp_clauses.
3841         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3842         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3843         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3844         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3845         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3846         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3847         Adjust output for GOMP_PARALLEL.
3848         (dump_omp_clauses): New.
3849         (print_declaration): Dump DECL_VALUE_EXPR.
3850         (op_symbol_1): Split out of op_symbol.
3851         (dumping_stmts): Remove.  Update all users.
3852         * cgraph.c (cgraph_analyze_queue): New.
3853         (cgraph_add_new_function): New.
3854         * cgraph.h (cgraph_analyze_queue): Declare.
3855         (cgraph_add_new_function): Declare.
3856         (cgraph_lower_function): Remove.
3857         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3858         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3859         and TYPE_P nodes in its default clause.
3860         (empty_body_p): New.
3861         (tree_range_check_failed): New.
3862         (build5_stat): New.
3863         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3864         OMP_CLAUSE_REDUCTION_MERGE,
3865         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3866         OMP_CLAUSE_PRIVATE_DEBUG,
3867         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3868         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3869         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3870         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3871         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3872         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3873         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3874         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3875         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3876         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3877         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3878         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3879         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3880         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3881         (TREE_RANGE_CHECK): New.
3882         (empty_body_p): Declare.
3883         (enum omp_clause_default_kind): New.
3884         (build_string_literal): Declare.
3885         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3886         (build5_stat, build5): Declare.
3887         * tree-pass.h (TDF_CHAIN): Define.
3888         * tree-pass.h (PROP_gimple_lomp): Define.
3889         (pass_lower_omp): Declare.
3890         * diagnostic.h (debug_tree_chain): Declare.
3891         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3892         mode_for_size.
3893         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3894         * builtins.c (build_string_literal): Make extern.
3895         * gcc.c (include_spec_function): New.
3896         (static_spec_functions): Add it.
3897         (main): Move load of libgomp.spec ...
3898         (LINK_COMMAND_SPEC): ... here.
3899         (link_gomp_spec): New.
3900         (static_specs): Include it.
3901         (LINK_COMMAND_SPEC): Add link_gomp.
3902         (GOMP_SELF_SPECS): New.
3903         (driver_self_specs): Include it.
3904         (switch_matches): Don't mark inline.
3905         (main): Load libgomp.spec.
3906         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
3907         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
3908         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
3909         * tree-gimple.h (enum omp_parallel): Declare.
3910         (determine_parallel_type): Declare.
3911         (omp_firstprivatize_variable): Declare.
3912         (omp_reduction_init): Declare.
3913         (diagnose_omp_structured_block_errors): Declare.
3914         (struct walk_stmt_info): Add want_return_expr.
3915         (struct walk_stmt_info): Add want_bind_expr, want_locations.
3916         (find_omp_clause): Declare.
3917         (insert_field_into_struct): Declare.
3918         (struct walk_stmt_info): Move from tree-nested.c
3919         (walk_stmts): Declare.
3920         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
3921         to 200505.
3922         * cgraphunit.c (cgraph_lower_function): Make static.
3923         (cgraph_finalize_pending_functions): New.
3924         (cgraph_finalize_function): Call it.
3925         (cgraph_finalize_compilation_unit): Likewise.
3926         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
3927         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
3928         (BT_FN_UINT_UINT): New.
3929         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
3930         DEF_FUNCTION_TYPE_VAR_4): Document.
3931         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
3932         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
3933         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
3934         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
3935         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
3936         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
3937         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
3938         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
3939         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
3940         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
3941         into separate files.
3942         (DEF_GOMP_BUILTIN): New.
3943         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
3944         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
3945         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
3946         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
3947         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
3948         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
3949         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
3950         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
3951         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
3952         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
3953         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
3954         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
3955         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
3956         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
3957         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
3958         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
3959         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
3960         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
3961         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
3962         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
3963         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
3964         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
3965         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
3966         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
3967         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
3968         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
3969         * sync-builtins.def: New file, moved from builtins.def.
3970         * omp-builtins.def: New file, moved from builtins.def.
3971         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
3972         * gimple-low.c (lower_function_body): Clear data.
3973         (lower_stmt): Do not handle COMPOUND_EXPR.
3974         Remove call to print_node_brief.
3975         * c-tree.h (c_finish_omp_clauses): New prototype.
3976         (C_DECL_THREADPRIVATE_P): Define.
3977         (lookup_name_no_remap, c_omp_remap_private): Remove
3978         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
3979         (check_for_loop_decls): Update decl.
3980         (lookup_name_no_remap, c_omp_remap_private): Declare.
3981         (build_indirect_ref, build_modify_expr, pushdecl,
3982         pushdecl_top_level): Move to c-common.h.
3983         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
3984         before the switch, but just in the 2 places that need it.
3985         * c-decl.c (diagnose_mismatched_decls): Do not check for
3986         mismatched thread-local attributes when OLDDECL is marked
3987         threadprivate and NEWDECL has no thread-local attributes.
3988         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
3989         (c_gimple_diagnostics_recursively): Rename from
3990         c_warn_unused_result_recursively.  Invoke
3991         diagnose_omp_structured_block_errors.
3992         (check_for_loop_decls): Return a singular decl found.
3993         * langhooks.c (lhd_omp_predetermined_sharing): Return
3994         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
3995         (lhd_omp_firstprivatize_type_sizes): New.
3996         (lhd_omp_assignment): New.
3997         (lhd_omp_predetermined_sharing): New.
3998         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
3999         (struct lang_hooks_for_types): Add
4000         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
4001         omp_predetermined_sharing, omp_disregard_value_expr,
4002         omp_private_debug_clause, omp_clause_default_ctor,
4003         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
4004         (c_finish_omp_clauses): New.
4005         (c_finish_bc_stmt): Diagnose break within omp for.
4006         (c_begin_omp_parallel, c_finish_omp_parallel): New.
4007         (build_unary_op): Return error_mark after reporting
4008         a readonly_error.
4009         (build_modify_expr): Likewise.
4010         * gimplify.c: Include optabs.h and pointer-set.h.
4011         (enum gimplify_omp_var_data): Declare.
4012         (struct gimplify_omp_ctx): Declare.
4013         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
4014         and combined_ctxp.
4015         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
4016         (push_gimplify_context, pop_gimplify_context): Allow nesting.
4017         (splay_tree_compare_decl_uid): New.
4018         (new_omp_context): New.
4019         (delete_omp_context): New.
4020         (gimple_add_tmp_var): Call omp_add_variable.
4021         (gimplify_bind_expr): Likewise.
4022         (gimplify_var_or_parm_decl): If omp_notice_variable returned
4023         true, disregard DECL_VALUE_EXPR on the decl if any.
4024         (gimplify_expr_in_ctx): New.
4025         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
4026         omp_add_variable, omp_notice_variable, omp_is_private
4027         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
4028         gimplify_adjust_omp_clauses, gimplify_omp_parallel
4029         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
4030         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
4031         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
4032         gimplify_omp_atomic): New.
4033         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4034         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4035         OMP_CRITICAL and OMP_ATOMIC.
4036         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
4037         * c-pragma.h (enum pragma_kind): Add
4038         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
4039         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
4040         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
4041         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
4042         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
4043         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
4044         PRAGMA_OMP_THREADPRIVATE.
4045         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4046         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4047         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
4048         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
4049         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
4050         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
4051         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
4052         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
4053         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
4054         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
4055         * tree-ssa-dce.c (find_control_dependence): Do not assume that
4056         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
4057         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
4058         OpenMP directives.
4059         (struct nesting_info): Add field_map,
4060         suppress_expansion, debug_var_chain.
4061         (create_nesting_tree): Initialize them.
4062         (lookup_field_for_decl): Use field_map.
4063         (get_nonlocal_debug_decl, get_local_debug_decl): New.
4064         (convert_local_omp_clauses): New.
4065         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
4066         (walk_body): Split out of walk_function.
4067         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
4068         (convert_nonlocal_reference): Handle omp statements.
4069         (convert_local_reference): Likewise.
4070         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
4071         (unnest_nesting_tree): New.
4072         (lower_nested_functions): Call it.
4073         (insert_field_into_struct): Make extern.
4074         (struct walk_stmt_info): Move to tree-gimple.h.
4075         (walk_stmts): Make extern.
4076         * omp-builtins.def: New file.
4077         * tree-iterator.c (expr_only): Clarify comment.
4078         * c-common.h (pushdecl_top_level, pushdecl,
4079         build_modify_expr, build_indirect_ref,
4080         c_finish_omp_master, c_finish_omp_critical,
4081         c_finish_omp_ordered, c_finish_omp_barrier,
4082         c_finish_omp_atomic, c_finish_omp_flush,
4083         c_finish_omp_for, c_split_parallel_clauses,
4084         omp_clause_default_kind, c_omp_sharing_predetermined,
4085         c_omp_remap_decl): Declare.
4086         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
4087         (OBJS-common): Add omp-low.o.
4088         (c-omp.o, omp-low.o): Add.
4089         (gimplify.o): Add dependency on $(OPTABS_H).
4090         (GTFILES): Add omp-low.c.
4091         (gt-stringpool.h): Add.
4092         * tree-cfg.c (set_bb_for_stmt): Do not update the
4093         block-to-labels map if we are currently expanding to RTL.
4094         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
4095         checks.
4096         Handle IDENTIFIER_NODE.
4097         (tree_verify_flow_info): Do not ICE when emitting error
4098         messages about invalid labels.
4099         (dump_function_to_file): Reset CFUN before emitting the body
4100         of the function.
4101         (debug_function): New.
4102         * passes.c (init_optimization_passes): Schedule
4103         pass_lower_omp.
4104         * langhooks-def.h (lhd_omp_predetermined_sharing,
4105         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
4106         Declare.
4107         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
4108         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
4109         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
4110         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
4111         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
4112         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
4113         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
4114         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
4115         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
4116         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
4117         (LANG_HOOK_DECLS): Use them.
4118
4119 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
4120             Richard Henderson  <rth@redhat.com>
4121             Jakub Jelinek  <jakub@redhat.com>
4122             Diego Novillo  <dnovillo@redhat.com>
4123
4124         * c-parser.c (pragma_omp_clause): Define.
4125         (c_parser_declaration_or_fndef): Document OpenMP syntax.
4126         (c_parser_compound_statement): Likewise.
4127         (c_parser_statement): Likewise.
4128         (c_parser_pragma): Handle omp pragmas.
4129         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
4130         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
4131         (c_parser_omp_clause_name, check_no_duplicate_clause,
4132         c_parser_omp_variable_list,
4133         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
4134         c_parser_omp_clause_copyprivate,
4135         c_parser_omp_clause_default,
4136         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
4137         c_parser_omp_clause_lastprivate,
4138         c_parser_omp_clause_nowait,
4139         c_parser_omp_clause_num_threads,
4140         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
4141         c_parser_omp_clause_reduction,
4142         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
4143         c_parser_omp_all_clauses, c_parser_omp_structured_block,
4144         c_parser_omp_atomic, c_parser_omp_barrier,
4145         c_parser_omp_critical, c_parser_omp_flush,
4146         c_parser_omp_for_loop, c_parser_omp_for,
4147         c_parser_omp_master, c_parser_omp_ordered,
4148         c_parser_omp_sections_scope, c_parser_omp_sections,
4149         c_parser_omp_parallel, c_parser_omp_single,
4150         c_parser_omp_construct, c_parser_omp_threadprivate): New.
4151         * c-pragma.c (init_pragma): Do omp pragma registration here.
4152         * c.opt (fopenmp): New flag.
4153
4154 2006-01-18  Eric Christopher  <echristo@apple.com>
4155
4156         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
4157         * config/darwin.h (GOMP_SELF_SPECS): Define.
4158
4159 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4160
4161         * rtl.h: Remove the prototype for reg_alloc.
4162
4163 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4164
4165         PR target/25731
4166         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
4167         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
4168         sjlj and dwarf2 exception handling.
4169         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
4170         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
4171         * pa/pa.c (function_value): Treat complex and vector types as
4172         aggregates.
4173         (function_arg): Likewise.  Only pass scalar floats in the floating
4174         point argument registers.
4175         * pa/t-slibgcc-dwarf-ver: New file.
4176         * pa/t-slibgcc-sjlj-ver: New file.
4177         * pa/t-slibgcc-elf-ver: Delete file.
4178
4179 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
4180
4181         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
4182         unlikely_test_section_p test.
4183
4184 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4185
4186         * mode-switching.c (optimize_mode_switching): Make it static.
4187         * basic-block.h: Remove the prototype for
4188         optimize_mode_switching.
4189
4190         * modulo-sched.c (sms_schedule): Make it static.
4191         * rtl.h: Remove the prototype for sms_schedule.
4192
4193         * postreload-gcse.c (gcse_after_reload_main): Make it static.
4194         * rtl.h: Remove the prototype for gcse_after_reload_main.
4195
4196         * reg-stack.c (reg_to_stack): Make it static.
4197         * rtl.h: Remove the prototype for reg_to_stack.
4198
4199         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
4200         Make them static.
4201         * rtl.h: Remove the prototypes for regrename_optimize and
4202         copyprop_hardreg_forward.
4203
4204 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
4205
4206         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
4207         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
4208         Test against the appropriate null constant for the mode.
4209         If 'fixup_overlap' is true, swap the operands if they overlap.
4210         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
4211         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
4212         alpha_split_tmode_pair and adjust for above change.
4213         * config/alpha/alpha.md (movtf_internal): Adjust call to
4214         alpha_split_tfmode_pair and rely on it to swap the operands.
4215         (movti_internal): New insn and post-reload splitter.
4216         (movti): New expander.
4217
4218 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
4219
4220         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
4221         operands.
4222
4223 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4224
4225         * rtlanal.c (global_reg_mentioned_p_1,
4226         global_reg_mentioned_p): Remove.
4227         * rtl.h: Remove the prototype for global_reg_mentioned_p.
4228
4229         * flow.c (initialize_uninitialized_subregs): Make it static.
4230         * rtl.h: Remove the prototype for
4231         initialize_uninitialized_subregs.
4232
4233         * function.c (instantiate_virtual_regs): Make it static.
4234         * function.h: Remove the prototype for
4235         instantiate_virtual_regs.
4236
4237         * regmove.c (regmove_optimize, combine_stack_adjustments):
4238         Make them static.
4239         * rtl.h: Remove the prototypes for regmove_optimize and
4240         combine_stack_adjustments.
4241
4242 2006-01-17  Roger Sayle  <roger@eyesopen.com>
4243
4244         * config/i386/i386.c (COSTS_N_BYTES): New macro.
4245         (size_cost): Encode costs in bytes so that a reg-reg addition is
4246         equivalent to COSTS_N_INSNS(1).
4247         (override_options): Use the size_cost.branch_cost as the default
4248         ix86_branch_cost when optimizing for size.
4249
4250 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4251
4252         * Makefile.in (D32PBIT_FUNCS): New.
4253         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
4254         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
4255         D64PBIT_FUNCS and D128PBIT_FUNCS.
4256         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
4257         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
4258         D128PBIT are set.
4259         (decnumber_dep): Define.
4260         * doc/libgcc.texi (Decimal float library routines): New node.
4261         * config/dfp-bit.h, config/dfp-bit.c: New files.
4262
4263 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4264
4265         * expr.c (emit_move_change_mode): Always adjust addresses, not
4266         just during reload.  Copy replacements only during reload.
4267         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
4268         emit_move_via_integer.
4269
4270 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
4271
4272         * Makefile.in (check-%, check-consistency): Use $${srcdir}
4273         instead of $(srcdir) and ${srcdir}.
4274
4275 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
4276
4277         PR target/592
4278         PR middle-end/11135
4279         * arm.h (struct machine_function): Add pic_reg.
4280         * arm.c (arm_pic_register): Make unsigned.
4281         (arm_override_options): Only set arm_pic_register if
4282         TARGET_SINGLE_PIC_BASE.
4283         (use_return_insn): Only test for a pic register if it is fixed.
4284         (arm_compute_save_reg0_reg12_mask): Likewise.
4285         (thumb_compute_save_reg_mask): Likewise.
4286         (legitimate_pic_operand): Factor out some known invariants.
4287         (legitimize_pic_address): If we don't have a fixed pic register,
4288         then set up a pseudo in the function entry sequence.  Handle the
4289         pic base being in a pseudo.
4290         (arm_load_pic_register): Handle the pic register being in a pseudo.
4291         (arm_expand_prologue): Only set up the pic register if it is fixed.
4292         (thumb_expand_prologue): Likewise.
4293         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
4294         (pic_load_addr_based_insn): Likewise.
4295         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
4296         fixed.
4297
4298 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4299
4300         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
4301         decimal float modes for all floating point registers.
4302
4303         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
4304         match_code "mem" with match_test "macho_lo_sum_memory_operand".
4305
4306 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
4307
4308         PR c/25682
4309         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
4310         even when the pointer is not NULL.
4311
4312 2006-01-16  Ian Lance Taylor  <ian@airs.com>
4313
4314         * common.opt (ftoplevel-reorder): New option.
4315         * cgraph.c (cgraph_asm_nodes): New global variable.
4316         (cgraph_asm_last_node): New static variable.
4317         (cgraph_order): New global variable.
4318         (cgraph_create_node): Set new order field.
4319         (cgraph_varpool_node): Likewise.
4320         (decide_is_variable_needed): Return true if not
4321         flag_toplevel_reorder.
4322         (cgraph_add_asm_node): New function.
4323         * cgraph.h (struct cgraph_node): Add order field.
4324         (struct cgraph_varpool_node): Add order field.
4325         (struct cgraph_asm_node): Define.
4326         (cgraph_asm_nodes, cgraph_order): Declare.
4327         (cgraph_add_asm_node): Declare.
4328         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
4329         function.
4330         (cgraph_varpool_assemble_pending_decls): Call it.
4331         (cgraph_output_pending_asms): New static function.
4332         (cgraph_finalize_compilation_unit): Call it.
4333         (struct cgraph_order_sort): Define.
4334         (cgraph_output_in_order): New static function.
4335         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
4336         !flag_toplevel_reorder case.
4337         * c-parser.c: Include "cgraph.h".
4338         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
4339         assemble_asm.
4340         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
4341         than -fno-unit-at-a-time.
4342         * doc/invoke.texi (Option Summary): Mention
4343         -fno-toplevel-reorder.
4344         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
4345         -funit-at-a-time documentation.
4346
4347 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
4348             Kazu Hirata  <kazu@codesourcery.com>
4349
4350         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
4351
4352 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
4353
4354         * Makefile.in (FUNCTION_H): New.  Use it instead of
4355         function.h throughout the file.
4356         * function.h: Include tree.h.
4357
4358 2006-01-17  Ben Elliston  <bje@au.ibm.com>
4359
4360         * recog.c: Separate some functions with whitespace.
4361
4362 2006-01-16  Richard Henderson  <rth@redhat.com>
4363
4364         Merge from gomp branch:
4365         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
4366         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
4367         and rename from struct inline_data.  Rename callee* to dst*;
4368         caller* to src*; add copy_decl hook, transform_call_graph_edges,
4369         transform_new_cfg, transform_return_to_modify, and
4370         transform_lang_insert_block flags; remove cloning_p, versioning_p,
4371         update_clones_p.
4372         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
4373         (copy_decl_for_dup): Remove.
4374         * tree-inline.c (struct inline_data): Move to header.
4375         (insert_decl_map): Export.
4376         (remap_decl): Update for member name changes.  Use copy_decl hook.
4377         Allow for replacement to be a non-decl.  Remove dead code.
4378         (remap_type_1): Check for existing mapping.
4379         (remap_type): Export.
4380         (remap_decls): Update for member name changes.
4381         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
4382         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
4383         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
4384         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
4385         (tree_function_versioning, build_duplicate_type): Likewise.
4386         (copy_body_r): Likewise.  Export.
4387         (copy_decl_for_dup): Split into ...
4388         (copy_decl_for_dup_finish, copy_decl_to_var,
4389         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
4390         (replace_ref_tree, inlining_p): Remove.
4391
4392 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4393
4394         * ifcvt.c (if_convert): Make it static.
4395         * rtl.h: Remove the prototype for if_convert.
4396
4397         * local-alloc.c (local_alloc): Make it static.
4398         * rtl.h: Remove the prototype for local_alloc.
4399
4400         * loop.c (loop_optimize): Make it static.
4401         * cfgloop.h: Remove the prototype for loop_optimize.
4402         * rtl.h: Likewise.
4403
4404 2006-01-16  DJ Delorie  <dj@redhat.com>
4405
4406         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
4407         mems.
4408
4409 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4410
4411         * pa.md: Disparage copies between general and floating-point registers
4412         in 32-bit move patterns.
4413
4414 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
4415
4416         PR testsuite/25741
4417         * Makefile.in (check-%): Depend on site.exp instead of
4418         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
4419         directories.
4420
4421 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4422
4423         * global.c (global_alloc): Make it static.
4424         * rtl.h: Remove the prototype for global_alloc.
4425
4426 2006-01-16  Richard Guenther  <rguenther@suse.de>
4427
4428         * tree-ssa-alias.c (struct used_part): Add write_only field.
4429         (get_or_create_used_part_for): Initialize it to true.
4430         (create_overlap_variables_for): Don't create structure variables
4431         for structures that only are written to.
4432         (find_used_portions): Handle MODIFY_EXPR to track whether a
4433         structure is only written to.
4434
4435 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4436
4437         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
4438         static.
4439         * basic-block.h: Remove the prototype for
4440         partition_hot_cold_basic_blocks.
4441
4442 2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>
4443
4444         * cppspec.c (lang_specific_spec_functions): Remove.
4445         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
4446         * gcc.h (lang_specific_spec_functions): Remove.
4447         * gccspec.c (lang_specific_spec_functions): Remove.
4448
4449 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
4450
4451         * combine.c (record_value_for_reg): Invalidate registers
4452         if INSN is null.
4453         (record_dead_and_set_regs_1): Likewise, by passing them to
4454         record_value_for_reg.
4455         (record_dead_and_set_regs): Invalidate stores made by a
4456         call.  We do not combine across a call, but we still
4457         relied on equivalences.
4458
4459 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4460
4461         * tree-vrp.c (extract_range_from_binary_expr): Cope with
4462         vrp_int_const_binop returning non-constant nodes.
4463
4464 2006-01-16  Paul Brook  <paul@codesourcery.com>
4465
4466         * config/m68k/m68k.c (output_move_const_into_data_reg):
4467         Output correct mnemonic for mvz and mvs.
4468
4469 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
4470
4471         * rtl-factoring.c: Add sequence abstraction algorithm.
4472         * cfgcleanup.c (outgoing_edges_match): Extra checks.
4473         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
4474         ABNORMAL edges.
4475         (block_has_preserve_label): New function.
4476         * common.opt: Register new pass.
4477         * Makefile.in: Ditto.
4478         * passes.c: Ditto.
4479         * timevar.def: Ditto.
4480         * tree-pass.h: Ditto.
4481         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
4482         * rtl.h (make_jump_insn_raw): Add forward decl.
4483         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
4484
4485 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4486             Roger Sayle  <roger@eyesopen.com>
4487
4488         * fold-const.c (fold_minmax): New static function.
4489         (fold_binary) <MIN_EXPR>: Call it.
4490         <MAX_EXPR>: Likewise.
4491         * stor-layout.c (place_field): Use DECL_SIZE consistently
4492         in the computation of the new record size.
4493
4494 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4495
4496         * cse.c (cse_condition_code_reg): Make it static.
4497         * rtl.h: Remove the prototype for cse_condition_code_reg.
4498
4499         * combine.c (combine_instructions): Make it static.
4500         * rtl.h: Remove the prototype for combine_instructions.
4501
4502 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4503
4504         PR target/25168
4505         * tree.c (get_file_function_name_long): Concatenate the first global
4506         object name with a string derived from the input filename of the object
4507         for type "F".
4508
4509 2006-01-16  Ben Elliston  <bje@au.ibm.com>
4510
4511         * config/i386/winnt-stubs.c: Update FSF address.
4512         * config/xtensa/ieee754-df.S: Ditto.
4513         * config/xtensa/ieee754-sf.S: Ditto.
4514
4515 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4516
4517         * ifcvt.c (noce_init_if_info): New static function, broken out of
4518         noce_process_if_block.
4519         (noce_process_if_block): Call noce_init_if_info.
4520         (check_cond_move_block): New static function.
4521         (cond_move_process_if_block): New static function.
4522         (process_if_block): Call cond_move_process_if_block.
4523
4524 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
4525
4526         * cselib.c (hash_table): Rename to cselib_hash_table.
4527         (cselib_clear_table, discard_useless_values,
4528         remove_useless_values, cselib_lookup_mem, cselib_lookup,
4529         cselib_init, cselib_finish): Adjust uses of hash_table.
4530
4531 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
4532
4533         PR tree-optimization/25485
4534         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
4535         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
4536         is known to be false and true, respectively.
4537
4538 2006-01-14  Richard Guenther  <rguenther@suse.de>
4539
4540         PR tree-optimization/22548
4541         PR tree-optimization/22555
4542         PR tree-optimization/22501
4543         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
4544         * params.def (salias-max-array-elements): New parameter.
4545         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
4546         * doc/invoke.texi (salias-max-array-elements): Document.
4547         * tree-flow-inline.h (var_can_have_subvars): We also handle
4548         arrays now.
4549         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
4550         COMPONENT_REF.
4551         * tree-ssa-structalias.c (params.h): Include.
4552         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
4553         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
4554         (get_constraint_for): For ADDR_EXPR operating on something
4555         containing an ARRAY_REF, add all subvars to the solution.
4556         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
4557         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
4558         for creating MUST_DEFs.
4559         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
4560
4561 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
4562
4563         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
4564         functions.
4565         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
4566         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
4567         number_of_iterations_le): New functions.
4568         (number_of_iterations_special): Removed.
4569         (number_of_iterations_exit): Do not use number_of_iterations_special.
4570         * tree.c (unsigned_type_for): Always return integer type.
4571
4572 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
4573         Richard Guenther  <rguenther@suse.de>
4574
4575         PR rtl-optimization/24257
4576         * gcse.c (find_moveable_store): Only consider a store movable
4577         when the SET_SRC of the insn can be assigned to a register.
4578
4579 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4580
4581         * tree.c (tree_not_class_check_failed): New function.
4582         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
4583         (tree_not_class_check_failed): Declare.
4584
4585 2006-01-13  Ian Lance Taylor  <ian@airs.com>
4586
4587         * reload1.c (do_output_reload): Add assertion rejecting a
4588         CALL_INSN.
4589
4590 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
4591
4592         * combine.c (struct reg_stat): Add new fields truncation_label and
4593         truncated_to_mode.
4594         (record_value_for_reg): Reset truncated_to_mode.
4595         (record_truncated_value): New function.
4596         (check_promoted_subreg): Call it.  Rename to check_conversions.
4597         (combine_instructions): Rename check_promoted_subreg to
4598         check_conversions.
4599         (reg_truncated_to_mode): New function.
4600         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
4601         (gen_lowpart_or_truncate): New function.
4602         (force_to_mode): Use it instead of gen_lowpart.
4603
4604 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
4605
4606         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
4607         VAR is a tag, not its type tag.
4608
4609 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
4610
4611         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
4612         alternatives to match style of other entries.
4613         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
4614
4615 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
4616
4617         PR tree-optimization/25771
4618         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
4619         SSA_NAMES.
4620
4621 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
4622
4623         PR tree-opt/24365
4624         * tree-inline.c (declare_return_variable): If the return variable
4625         was marked as a non gimple complex, set the return slot variable
4626         to be a non gimple comple variable.
4627
4628 2006-01-13  Richard Guenther  <rguenther@suse.de>
4629
4630         * builtins.c (expand_builtin_sincos): New function.
4631         (expand_builtin_mathfn_3): Remove dead code, sin and cos
4632         do not set errno.
4633         (expand_builtin): Expand sincos using expand_builtin_sincos.
4634
4635 2006-01-12  DJ Delorie  <dj@redhat.com>
4636
4637         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
4638         shift counts, separate SI shifts for m32c vs m16c, pass shift type
4639         so that constant shifts can be split.
4640         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
4641         (m32c_valid_pointer_mode): Make static.
4642         (shift_gen_func_for): New.
4643         (m32c_prepare_shift): Use it.  Split large const shifts into
4644         multiple shifts.
4645         * config/m32c/predicates.md (shiftcount_operand): Allow more
4646         general operands.
4647         (longshiftcount_operand): New.
4648         * doc/md.texi (Machine Constraints): Document In6.
4649
4650 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4651
4652         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
4653         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
4654         documentation.
4655
4656 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
4657
4658         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
4659         to try to avoid clobbering pieces of structures when we know
4660         something about the whole structure.
4661         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
4662
4663 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4664
4665         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
4666         return in memory, as this is no limitation is no longer present.
4667
4668 2006-01-12  DJ Delorie  <dj@redhat.com>
4669
4670         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
4671         mova with fb, and for fb+0 -> An.
4672
4673         * config/m32c/mov.md (peephole2): Fix enabling logic.
4674
4675         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
4676         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
4677         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
4678         FINI_ARRAY_SECTION_ASM_OP): Define.
4679
4680         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
4681         variable.
4682         (m32c_legitimize_reload_address): New logic to reload FB to An.
4683         (m32c_output_reg_push): Add newline.
4684         (m32c_output_reg_pop): Likewise.
4685
4686 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
4687
4688         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
4689
4690 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
4691
4692         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
4693
4694 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4695
4696         * config/sh/predicates.md (sh_rep_vec): Add parallel to
4697         match_code.
4698
4699 2006-01-11  Ben Elliston  <bje@au.ibm.com>
4700
4701         * rtlanal.c (find_reg_note): Assert insn is not null.
4702
4703 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4704
4705         * df-scan.c (df_hard_reg_init): Move declaration of i outside
4706         ifdef.
4707
4708 2006-01-11  Jeff Law  <law@redhat.com>
4709
4710         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
4711         hold edge pairs.
4712         (mark_threaded_blocks, register_jump_thread): New functions.
4713         (thread_through_all_blocks): Remove unwanted argument.  No
4714         longer rely on e->aux to communicate thread target info.
4715         Call mark_threaded_blocks.  Release the threaded_blocks
4716         bitmap and threaded_edges vector when complete.
4717         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
4718         (threaded_blocks): Remove.
4719         (tree_ssa_dominator_optimize): Remove initialization and
4720         finalization of threaded_blocks.  Simplify call to
4721         thread_through_all_blocks.
4722         (thread_across_edge): Call register_jump_thread rather than
4723         storing thread information into e->aux.
4724         (free_all_edge_infos): Simplify now that e->aux is no longer
4725         used to communicate with thread_through_all_blocks.
4726         * tree-flow.h (thread_through_all_blocks): Update prototype.
4727         (register_jump_thread): Prototype.
4728
4729 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4730
4731         * df-core.c (df_compact_blocks, df_bb_replace): Use
4732         SET_BASIC_BLOCK instead of BASIC_BLOCK.
4733
4734 2006-01-11  Richard Guenther  <rguenther@suse.de>
4735
4736         PR tree-optimization/25734
4737         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
4738         stop propagation after successful propagation to the LHS.
4739
4740 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4741
4742         * basic-block.h (control_flow_graph): Change the type of
4743         x_basic_block_info to VEC(basic_block,gc) *.
4744         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
4745         basic_block_info.
4746         (SET_BASIC_BLOCK): New.
4747         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
4748         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
4749         * cfgbuild.c (find_basic_blocks): Likewise.
4750         * cfglayout.c (fixup_reorder_chain): Likewise.
4751         * cfgrtl.c (create_basic_block_structure,
4752         rtl_create_basic_block): Likewise.
4753         * ifcvt.c (find_if_case_1): Likewise.
4754         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
4755         Likewise.
4756
4757 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4758
4759         * Makefile.in: Removed rotted odf.c entry.
4760
4761 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
4762
4763         PR target/25706
4764         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
4765         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
4766         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
4767         output pattern modifier, not %e.
4768         * config/cris/cris.c (cris_op_str): Update comment about pattern
4769         modifier.
4770         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
4771         before falling through into...
4772         <case 'E'>: Redefined from old 'e' case.
4773
4774 2006-01-11  Jan Hubicka  <jh@suse.cz>
4775
4776         PR target/25042
4777         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
4778
4779 2006-01-11  Jan Hubicka  <jh@suse.cz>
4780
4781         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
4782         * i386.c (x86_decompose_lea): Kill.
4783         (ix86_rtx_costs): Kill.
4784
4785 2006-01-11  Jan Hubicka  <jh@suse.cz>
4786
4787         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
4788         * cgraph.h (cgraph_node): Add inline_decl.
4789         (cgraph_insert_node_to_hashtable): Declare.
4790         (save_inline_function_body): Declare.
4791         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
4792         clones.
4793         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
4794         (cgraph_function_versioning): Update call of tree_function_versioning.
4795         (save_inline_function_body): New function.
4796         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
4797         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
4798         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
4799         (cgraph_default_inline_p): Likewise.
4800         (cgraph_decide_inlining_incrementally): Likewise.
4801         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
4802         (copy_bb): Kill saving; do updating of clones.
4803         (copy_cfg_body): Kill saving.
4804         (initialize_inlined-parameters): Likewise.
4805         (expand_call_inline): Likewise.
4806         (save_body): Kill.
4807         (tree_function_versioning): New parameter "update_clones".
4808         (inlining_p): Kill saving.
4809         * tree-inline.h (tree_function_versioning): Update prototype.
4810         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
4811         saving.
4812
4813 2006-01-11  Ian Lance Taylor <ian@airs.com>
4814
4815         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
4816         Allow undoing set of machine mode.
4817         (do_SUBST): Use enums instead of is_int.
4818         (do_SUBST_MODE): New function.
4819         (SUBST_MODE): New macro.
4820         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
4821         reg and trying to replace reg_regno_rtx with a new register.
4822         (undo_all): Use new enums, handle undoing a PUT_MODE change.
4823         (simplify_set): Use SUBST_MODE.
4824         (distribute_notes): Remove code that tried to update reg notes
4825         for regno_reg_rtx changes.
4826
4827 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
4828
4829         PR tree-optimization/23109
4830         PR tree-optimization/23948
4831         PR tree-optimization/24123
4832
4833         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
4834         * tree-cfg.c (single_noncomplex_succ): New.
4835         * tree-flow.h (single_noncomplex_succ): Declare it.
4836         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4837         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4838         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
4839         insert_bb, register_division_in, insert_reciprocals,
4840         replace_reciprocal, free_bb): New.
4841         (execute_cse_reciprocals_1): Rewritten.
4842         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
4843         Do not commit any edge insertion.  Always compute dominators and
4844         create the allocation pool.
4845         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
4846         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
4847         * targhooks.c (default_min_divistions_for_recip_mul): New.
4848         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
4849         * passes.c (init_optimization_passes): Run recip after tree loop
4850         optimizations.
4851         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
4852
4853 2006-01-11  Danny Berlin <dberlin@dberlin.org>
4854             Kenneth Zadeck <zadeck@naturalbridge.com>
4855
4856         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
4857         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
4858         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
4859         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
4860         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
4861         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
4862         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
4863         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
4864         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
4865         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
4866         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
4867         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
4868         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
4869         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
4870         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
4871         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
4872         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
4873         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
4874         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
4875         DF_SCAN_POST_ALLOC): New macros.
4876         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
4877         df_free_bb_function, df_local_compute_function, df_init_function,
4878         df_dataflow_function, df_confluence_function_0,
4879         df_confluence_function_n, df_transfer_function,
4880         df_finalizer_function, df_free_function, df_dump_problem_function,
4881         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
4882         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
4883         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
4884         df_urec_bb_info, ) New types.
4885         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
4886         variables.
4887         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
4888         df_analyze_simple_change_some_blocks,
4889         df_analyze_simple_change_one_block, df_compact_blocks,
4890         df_bb_replace, df_bb_regno_last_use_find,
4891         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
4892         df_insn_regno_def_p, df_find_def, df_find_use,
4893         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
4894         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
4895         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
4896         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
4897         debug_df_chain, df_get_dependent_problem, df_chain_create,
4898         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
4899         df_grow_bb_info, df_chain_dump, df_print_bb_index,
4900         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
4901         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
4902         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
4903         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
4904         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
4905         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
4906         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
4907         df_ref_remove, df_insn_refs_delete, df_refs_delete,
4908         df_reorganize_refs, df_set_state, df_hard_reg_init,
4909         df_read_modify_subreg_p) New public functions.
4910         * df-core.c: The core dataflow solver and glue routines for rtl
4911         dataflow.
4912         (df_init, df_add_problem, df_set_blocks, df_finish,
4913         df_hybrid_search_forward, df_hybrid_search_backward,
4914         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
4915         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
4916         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
4917         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
4918         df_reg_defined, df_find_use, df_reg_used, df_dump,
4919         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
4920         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
4921         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
4922         debug_df_useno, reset_df_after_reload): New functions.
4923         * df-scan.c: The scanning fuctions, once in df.c, completely
4924         rewritten so that they now fully model the functionality of
4925         register usage at the backend.
4926         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
4927         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
4928         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
4929         df_grow_insn_info, df_rescan_blocks, df_ref_create,
4930         df_get_artificial_defs, df_get_artificial_uses,
4931         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
4932         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
4933         df_refs_delete, df_reorganize_refs, df_set_state,
4934         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
4935         df_def_record_1, df_defs_record, df_uses_record,
4936         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
4937         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
4938         df_record_exit_block_uses, df_hard_reg_init): New functions.
4939
4940         * df-problems.c: Seven concrete dataflow problems that use the
4941         scanning in df-scan.c and are solved by the engine in df-core.c.
4942         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
4943         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
4944         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
4945         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
4946         df_ru_free_bb_info, df_ru_alloc,
4947         df_ru_bb_local_compute_process_def,
4948         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
4949         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
4950         df_ru_transfer_function, df_ru_free, df_ru_dump,
4951         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
4952         df_rd_free_bb_info, df_rd_alloc,
4953         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
4954         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
4955         df_rd_transfer_function, df_rd_free, df_rd_dump,
4956         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
4957         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
4958         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
4959         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
4960         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
4961         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
4962         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
4963         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
4964         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
4965         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
4966         df_urec_mark_reg_change, df_urec_check_earlyclobber,
4967         df_urec_mark_reg_use_for_earlyclobber,
4968         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
4969         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
4970         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
4971         df_urec_dump, df_urec_add_problem, df_chain_alloc,
4972         df_chain_create_bb_process_use, df_chain_create_bb,
4973         df_chain_finalize, df_chain_free, df_chains_dump,
4974         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
4975         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
4976         df_reg_lifetime): New functions.
4977         * df.c: Deleted file.
4978         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
4979         consistent with new df api.
4980         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
4981         rest_of_handle_sms): Ditto.
4982         * web.c (unionfind_union, union_defs, entry_register, web_main):
4983         Ditto.
4984         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
4985         invariant_expr_equal_p, find_defs, check_dependencies,
4986         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
4987         free_inv_motion_data, move_loop_invariants): Ditto.
4988         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
4989         Update dependencies.
4990         (odf.c): Added defective entry that was deleted later in day.
4991         * sched-deps.c (sched_analyze_1): Ditto.
4992
4993 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
4994
4995         * tree-ssa-operands.c (get_expr_operands): Record addressable
4996         variables directly.  Do not call add_stmt_operands for CONST_DECLs
4997         and ARRAY_DECLs.
4998         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
4999         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
5000
5001 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5002
5003         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
5004         function returns true in the positive case.
5005
5006 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5007
5008         PR target/20754
5009         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
5010         for SI, DI, SF and DF modes.  Add alternatives to copy between
5011         general and floating point registers to the 32-bit patterns.
5012         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
5013         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
5014         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
5015         generating 64-bit code.
5016         * config/pa/pa.c (output_move_double): Handle copies between general
5017         and floating registers.
5018
5019 2006-01-10  Stuart Hastings  <stuart@apple.com>
5020
5021         * config/i386/i386.md (set_got): Update.
5022         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
5023         (builtin_setjmp_receiver): Mach-O support.
5024         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
5025         (GOT_SYMBOL_NAME): Define.
5026         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
5027         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
5028         * config/i386/i386.c (override_options): Revise for Darwin.
5029         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
5030         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
5031         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
5032         * config/i386/i386-protos.h (output_set_got): Likewise.
5033         * config/darwin.c (machopic_legitimize_pic_address): Update
5034         regs_ever_live[].
5035
5036 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
5037
5038         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
5039         when MODE isn't BLKmode.
5040
5041 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
5042
5043         PR rtl-optimization/25367
5044         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
5045
5046 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
5047
5048         PR target/25718
5049         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
5050         for a negative bound.
5051
5052 2006-01-10  Richard Guenther  <rguenther@suse.de>
5053
5054         * tree-ssa-structalias.c (get_constraint_for_component_ref):
5055         Never override with anything constraint.
5056
5057 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5058
5059         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
5060         256 bits when optimize_size.
5061
5062 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5063
5064         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
5065         MASK_ALIGN_DOUBLE.
5066         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
5067         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
5068         arguments.
5069
5070 2006-01-10  Ben Elliston  <bje@au.ibm.com>
5071
5072         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
5073         float modes.
5074         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
5075         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
5076         (USE_FP_FOR_ARG): Reject decimal float modes.
5077         (function_arg_advance): Likewise.
5078         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
5079         (rs6000_handle_altivec_attribute): Do not permit decimal floating
5080         point types in AltiVec vectors.
5081         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
5082         (rs6000_libcall_value): Likewise.
5083
5084 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
5085
5086         * config/xtensa/ieee754-df.S: New file.
5087         * config/xtensa/ieee754-sf.S: New file.
5088         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
5089         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
5090         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
5091
5092 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
5093
5094         * config/sh/predicates.md (binary_float_operator,
5095         binary_logical_operator, commutative_float_operator,
5096         equality_comparison_operator, greater_comparison_operator,
5097         less_comparison_operator, logical_operator,
5098         noncommutative_float_operator, shift_operator,
5099         symbol_ref_operand, unary_float_operator): Remove redundant
5100         conditionals.
5101
5102 2006-01-09  Jeff Law  <law@redhat.com>
5103
5104         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
5105         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
5106         now unused arguments.  Callers updated.
5107         (eliminate_redundant_computations): Remove now unused arguments,
5108         callers updated.
5109         (local_fold): Remove, no longer used.
5110         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
5111         and moved to...
5112         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
5113         (simplify_cond): New function.
5114         (forward_propagate_into_cond): Call simplify_cond.
5115
5116 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
5117
5118         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
5119         (*vec_extractv2di_1_sse): New.
5120
5121 2006-01-09  Ben Elliston  <bje@au.ibm.com>
5122
5123         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
5124
5125 2006-01-08  Richard Guenther  <rguenther@suse.de>
5126
5127         * tree-ssa-structalias.c (get_constraint_for): Remove
5128         anyoffset argument.
5129         (get_constraint_for_component_ref): Likewise.
5130         (do_deref): Likewise.
5131         (get_constraint_for): Likewise.
5132         (do_structure_copy): Likewise.
5133         (handle_ptr_arith): Likewise.
5134         (find_func_aliases): Likewise.  Remove unused need_anyoffset
5135         variable.
5136
5137 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
5138             Kaz Kojima  <kkojima@gcc.gnu.org>
5139
5140         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
5141         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
5142         (EXTRA_CONSTRAINT_C16): Remove.
5143         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
5144         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
5145         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
5146         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
5147         constants of SHmedia.  Handle nested constant expressions of
5148         SHmedia correctly.
5149         (andcosts): Fix the costs for SHmedia constants.
5150         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
5151         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
5152         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
5153         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
5154         (movv4hi_i, movv2si_i): Likewise.
5155         (movsi_const): Adjust the second operand of ior so to match with
5156         the Csu constraint.
5157         (movdi_const, movdi_const_32bit): Likewise.
5158         (movdi_const_16bit+1): Don't sign-extend LOW.
5159         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
5160         step.
5161         (*double_shori): Fix the split condition.  Use GEN_INT instead
5162         of get_int_mode calls.  Mask lower 16-bit of the argument of
5163         the last GEN_INT.
5164         (sym2GOTPLT): Remove.
5165         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
5166         gen_rtx_UNSPEC.
5167         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
5168         instead of EXTRA_CONSTRAINT_C16.
5169
5170 2006-01-07  Ian Lance Taylor  <ian@airs.com>
5171             David Edelsohn  <edelsohn@gnu.org>
5172
5173         PR rtl-optimization/25662
5174         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
5175         for constant operands instead of simplify_gen_binary.
5176         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
5177         after trying simplify_binary_operation
5178
5179 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
5180
5181         * tree.c (iterative_hash_expr): Hash decls based on UID.
5182
5183 2006-01-06  Eric Christopher  <echristo@apple.com>
5184
5185         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
5186         (TARGET_UNWIND_EMIT): Fix spelling.
5187         * target.h (gcc_target): Add except_table_label.
5188         * except.c (output_function_exception_table): Use.
5189         * varasm.c (default_emit_except_table_label): New.
5190         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
5191         define.
5192         (asm_out): Add here.
5193         * output.h (default_emit_except_table_label): Prototype.
5194         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
5195         * config/darwin.c (darwin_emit_except_table_label): Define.
5196         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
5197
5198 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
5199
5200         PR tree-optimization/18527
5201         * tree-ssa-loop-niter.c (number_of_iterations_cond,
5202         number_of_iterations_special, number_of_iterations_exit):
5203         Move base and step of an iv to a single structure.  Add
5204         no_overflow flag, and use it in # of iterations analysis.
5205         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
5206         folded_casts argument.
5207         (simple_iv): Pass base and step in a structure.  Set no_overflow
5208         flag.
5209         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
5210         Evaluate expensiveness of computing # of iterations instead of
5211         the final expression.
5212         * tree-scalar-evolution.h (affine_iv): New structure.
5213         (simple_iv): Declaration changed.
5214         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
5215         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
5216         find_givs_in_stmt): Changed due to simple_iv change.
5217
5218 2006-01-06  Jeff Law  <law@redhat.com>
5219
5220         PR ada/24994
5221         * tree-cfg.c (bsi_replace): Rename final argument from
5222         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
5223         change (stmt -> orig_stmt).
5224         * tree-eh.c (verify_eh_throw_stmt_node): New function.
5225         (bsi_remove): Add new argument.  Remove EH information
5226         if requested.
5227         (verify_eh_throw_table_statements): New function.
5228         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
5229         updated.
5230         * tree-optimize.c (execute_free_cfg_annotations): Verify
5231         the EH throw statement table after removing annotations.
5232         * except.h (verify_eh_throw_table_statements): Prototype.
5233         * tree-flow.h (bsi_remove): Update prototype.
5234         * tree-vrp.c (remove_range_assertions): Add new argument to
5235         bsi_remove call.
5236         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
5237         * tree-complex.c (expand_complex_div_wide): Likewise.
5238         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
5239         * tree-tailcall.c (eliminate_tailcall): Likewise.
5240         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
5241         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
5242         * tree-nrv.c (tree_nrv): Likewise.
5243         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
5244         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
5245         (combine_blocks): Likewise.
5246         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
5247         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
5248         (cleanup_control_flow): Likewise.
5249         (remove_forwarder_block): Likewise.
5250         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
5251         * tree-sra.c (sra_replace): Likewise.
5252         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
5253         (forward_propagate_single_use_vars): Likewise.
5254         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
5255         * tree-inline.c (expand_call_inline): Likewise.
5256         * tree-vect-transform.c (vect_transform_loop): Likewise.
5257         * tree-outof-ssa.c (rewrite_trees): Likewise.
5258         * tree-cfg.c (make_goto_expr_edges): Likewise.
5259         (cleanup_dead_labels): Likewise.
5260         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
5261         (bsi_move_before, bsi_move_after): Likewise.
5262         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
5263         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
5264
5265 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
5266
5267         PR tree-opt/25528
5268         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
5269         and IMAGPART_EXPR.
5270         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
5271         on non gimple variables.  Also add checks at the top for decls and
5272         mtags.
5273         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
5274         complex types.
5275         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
5276         and IMAGPART_EXPR for creating MUST_DEFs.
5277         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
5278         and NAME_MEMORY_TAG separately from the DECLs.
5279
5280 2006-01-06  Richard Guenther  <rguenther@suse.de>
5281
5282         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
5283         annotation, if necessary.
5284         * tree-ssa-pre.c (create_expression_by_pieces): Remove
5285         redundant calls to update_stmt.
5286         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
5287         Likewise.
5288
5289 2006-01-05  Richard Henderson  <rth@redhat.com>
5290
5291         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
5292
5293 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5294
5295         * c-typeck.c: Update copyright date.
5296
5297 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5298
5299         * c-typeck.c (build_c_cast): Always warn when casting
5300         from a pointer to an integer of different size, even if
5301         the node was constant.
5302
5303 2006-01-05  Richard Guenther  <rguenther@suse.de>
5304
5305         PR tree-optimization/22555
5306         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
5307         if one structure field is an array.
5308         * tree-ssa-operands.c (get_expr_operands): Continue scanning
5309         operands even if we found a subvar, but ignore VOPs in this
5310         case.
5311         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
5312         for renaming.
5313         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
5314
5315 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
5316
5317         PR middle-end/24998
5318         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
5319
5320 2006-01-05  Richard Guenther  <rguenther@suse.de>
5321             Diego Novillo  <dnovillo@redhat.com>
5322
5323         * tree-pass.h (TODO_remove_unused_locals): Define.
5324         * gimple-low.c (expand_var_p, remove_useless_vars,
5325         pass_remove_useless_vars): Remove.  Update all users.
5326         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
5327         (remove_unused_locals): New function.
5328         * tree-flow.h (remove_unused_locals): Declare.
5329         * passes.c (execute_todo): Call remove_unused_locals if
5330         TODO_remove_unused_locals is set.
5331         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
5332         * tree-ssa-dce.c (pass_dce): Likewise.
5333         * tree-outof-ssa.c (pass_del_ssa): Likewise.
5334
5335 2006-01-05  Richard Guenther  <rguenther@suse.de>
5336
5337         * tree-flow.h (struct fieldoff): Decompose field to
5338         type, size and decl.
5339         * tree-ssa-alias.c (create_sft): Take type as parameter.
5340         (create_overlap_variables_for): Store type, size and decl
5341         in the fieldoff structure.
5342         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
5343         of struct fieldoff.
5344         (push_fields_onto_fieldstack): Likewise.
5345         (create_variable_info_for): Likewise.  Use offset for the
5346         SFT name if the decl is not available.
5347
5348 2006-01-04  Paul Brook  <paul@codesourcery.com>
5349
5350         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
5351
5352 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
5353
5354         * lambda-code.c (can_put_in_inner_loop): Relax
5355         restrictions.
5356         (can_put_after_inner_loop): New function.
5357         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
5358         (perfect_nestify): Change to make copies and modify uses.
5359
5360 2006-01-04  Richard Henderson  <rth@redhat.com>
5361
5362         Merge from gomp branch:
5363         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
5364         via integer constant.
5365         (pragma_lex): Remove.
5366         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
5367         rather than parsing it.
5368         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
5369         handle_pragma_extern_prefix): Add %< %> quotes.
5370         (registered_pragmas): New.
5371         (c_register_pragma_1): New.
5372         (c_register_pragma): Use it.
5373         (c_register_pragma_with_expansion): Likewise.
5374         (c_invoke_pragma_handler): New.
5375         (init_pragma): Use cpp_register_deferred_pragma directly for
5376         pch_preprocess.
5377         * c-pragma.h (enum pragma_kind): New.
5378         (pragma_handler): New.
5379         (c_invoke_pragma_handler): Declare.
5380         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
5381         CPP_PRAGMA_EOL.
5382         * c-common.h (c_common_pch_pragma): Update decl.
5383         * Makefile.in (c-parser.o): Update dependencies.
5384         (GTFILES): Add c-pragma.h.
5385         * c-parser.c (struct c_token): Add pragma_kind.
5386         (struct c_parser): Add in_pragma.
5387         (c_lex_one_token): Always initialize keyword and pragma_kind.
5388         Extract data for CPP_PRAGMA.
5389         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
5390         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
5391         Don't allow CPP_PRAGMA_EOL if in_pragma.
5392         (c_parser_consume_pragma): New.
5393         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
5394         (c_parser_skip_to_end_of_parameter): Likewise.
5395         (c_parser_skip_to_end_of_block_or_statement): Likewise.
5396         (c_parser_skip_to_pragma_eol): New.
5397         (c_parser_external_declaration): Handle CPP_PRAGMA.
5398         (c_parser_compound_statement_nostart): Likewise.
5399         (c_parser_statement_after_labels): Likewise.
5400         (c_parser_pragma): New.
5401         (pragma_lex): Likewise.
5402         (c_parser_pragma_pch_preprocess): New.
5403         (c_parser_new): Merge into ...
5404         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
5405
5406 2006-01-04  Jeff Law  <law@redhat.com>
5407
5408         PR ada/24994
5409         * tree-cfg.c (bsi_replace): Remove the original statement
5410         from the EH throw statement table.
5411
5412 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
5413
5414         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
5415         make the prototype extern "C" and add throw ().
5416
5417         PR target/25554
5418         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
5419         and pos non-negative and pos + len <= 32.
5420         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
5421         drop pos + len < HOST_BITS_PER_WIDE_INT test.
5422         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
5423
5424         PR c/25559
5425         * c-common.c (handle_vector_size_attribute): Reject zero vector size
5426         as well as sizes not multiple of component size.
5427
5428         PR debug/25562
5429         * function.c (instantiate_expr): New function.
5430         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
5431         walk its DECL_VALUE_EXPR with instantiate_expr.
5432
5433         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
5434         DW_OP_deref{,_size} if address isn't going to be added.
5435
5436 2006-01-04  Ben Elliston  <bje@au.ibm.com>
5437
5438         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
5439         * config/fp-bit.c: Likewise.
5440
5441 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
5442
5443         * dominance.c: Add comment about why we use DFS numbering
5444         of dominance tree.
5445
5446 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5447             Richard Henderson  <rth@redhat.com>
5448
5449         Merge from gomp-branch:
5450         * varasm.c (assemble_variable): Handle thread-local COMMON data.
5451         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
5452
5453 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
5454
5455         PR rtl-optimization/25578
5456         * combine.c (combine_simplify_rtx, force_to_mode): Don't
5457         pass a parameter to simplify_shift_const if changing ASHIFTRT
5458         to LSHIFTRT.
5459
5460 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
5461
5462         * builtins.c (get_builtin_sync_mem): New function.
5463         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
5464         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
5465         Call get_builtin_sync_mem to generate mem rtx.
5466
5467 2006-01-03  Richard Guenther  <rguenther@suse.de>
5468
5469         PR c/25183
5470         * stmt.c (add_case_node): Make sure to clear overflow flags
5471         from ranges.
5472
5473 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5474
5475         Merge from gomp-branch.
5476         * config/sparc/sync.md: New file.
5477         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
5478         UNSPECV_LDSTUB): New constants.
5479         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
5480         * config/sparc/predicates.md (memory_reg_operand): New predicate.
5481         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
5482         prototype.
5483
5484 2006-01-03  Roger Sayle  <roger@eyesopen.com>
5485
5486         * combine.c (reg_subword_p): New predicate to test whether the
5487         destination of a set refers to a subword/piece of a register.
5488         (try_combine): Generalize the code to merge the setting of a
5489         pseudo to a constant followed by a set of a subword of that
5490         register to a constant.
5491
5492 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
5493
5494         * basic-block.h (control_flow_graph): Change the type of
5495         x_label_to_block_map to VEC(basic_block,gc) *.
5496         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
5497         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
5498
5499         * tree-ssa-propagate.c (cfg_blocks): Change the type to
5500         VEC(basic_block,heap) *.
5501         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
5502         ssa_prop_fini): Adjust the uses of cfg_blocks.
5503
5504 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
5505
5506         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
5507         COMPONENT_REFs.
5508         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
5509         hashing trees instead of a pointer hash.
5510         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
5511         compare for MEM_EXPR.
5512
5513         PR rtl-optimization/25130
5514         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
5515         when comparing MEMs for GCSE
5516
5517 2006-01-03  Ben Elliston  <bje@au.ibm.com>
5518
5519         * targhooks.h (default_decimal_float_supported_p): Declare.
5520         * targhooks.c (default_decimal_float_supported_p): Define.
5521         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
5522         `default_decimal_float_supported_p'.
5523         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
5524
5525 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
5526
5527         * combine.c (apply_distributive_law <SUBREG>): Check
5528         TRULY_NOOP_TRUNCATION.
5529
5530 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
5531
5532         * dwarf2out.c (have_switched_text_section): Delete.
5533         (have_multiple_function_sections): New.
5534         (have_location_lists): Make 'bool'.
5535         (add_AT_loc_list): Use 'true' not '1'.
5536         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
5537         (output_loc_list): Use have_multiple_function_sections.
5538         (output_ranges): Likewise.
5539         (dwarf2out_begin_function): Set have_multiple_function_sections if
5540         necessary.
5541         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
5542         Check function_section rather than DECL_SECTION_NAME.
5543         (dwarf2out_finish): Use have_multiple_function_sections.
5544         Don't clear have_location_lists.
5545
5546 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
5547             Jan Hubicka  <jh@suse.cz>
5548
5549         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
5550         case of conditional jump jumping to the next instruction.
5551         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
5552         cases of conditional jump jumping to the next instruction.
5553
5554 2006-01-02  Jan Hubicka  <jh@suse.cz>
5555
5556         * i386.c (*_cost): Add COSTS_N_INSNS.
5557         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
5558
5559 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
5560
5561         PR target/25259
5562         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
5563
5564 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
5565
5566         * config/arm/arm.c (all_fpus): Fix comment typo.
5567         * config/darwin.c: Likewise.
5568         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
5569         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
5570         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
5571
5572 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
5573
5574         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
5575         (rs6000_split_compare_and_swapqhi): New.
5576         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
5577         (sync_compare_and_swapqhi_internal): New.
5578         * config/rs6000/rs6000-protos.h: Declare.