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PR middle-end/24952
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-02-24  Roger Sayle  <roger@eyesopen.com>
2
3         PR middle-end/24952
4         * combine.c (try_combine): Explicitly check whether GET_CODE is
5         a SET or a CLOBBER, instead on checking that it isn't a USE.
6
7 2006-02-24  Roger Sayle  <roger@eyesopen.com>
8
9         * fold-const.c (fold_comparison): New subroutine of fold_binary
10         containing transformations common to both the equality and
11         ordering relational operators, factored out of fold_binary.
12         (fold_binary): Separate out the equality operators (EQ_EXPR
13         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
14         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
15         transformations common to both.
16         (fold_div_compare): Fix latent bugs in the previously unreachable 
17         LT_EXPR and GE_EXPR cases.
18
19 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
20
21         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
22         decl libname for clog to __clog on AIX.
23
24         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
25
26 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
27
28         PR target/26453
29         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
30         output traceback table for thunks.  Localise rs6000_stack_info call.
31
32 2006-02-23  Roger Sayle  <roger@eyesopen.com>
33             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
34
35         * gthr-posix.h (__gthrw): Fix typo in comment.
36
37 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
38
39         * doc/cpp.texi (Character sets): Document that we do support
40         input files to be in any character set.
41
42 2006-02-23  Jeff Law  <law@redhat.com>
43
44         * tree.h (PHI_ARG_NONZERO): Remove.
45         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
46         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
47         node to the new node.
48
49         PR tree-optimization/26425
50         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
51         min/max, then assume its varying.
52
53 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
54
55         PR rtl-optimization/26316
56         * rtlanal.c (enum may_trap_p_flags): New.
57         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
58         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
59         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
60         (may_trap_after_code_motion_p): New function.
61         * loop-invariant.c (find_identical_invariants): Fix dump formating.
62         (find_invariant_insn): Use may_trap_after_code_motion_p.
63         * rtl.h (may_trap_after_code_motion_p): Declare.
64
65 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
66
67         * emit-rtl.c (immed_double_const): Cleanup.
68
69 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
70         
71         Fix PR tree-optimization/26376
72         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
73         remove assert.
74
75 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
76
77         PR middle-end/26412
78         * gimplify.c (omp_add_variable): Guard variable size decl test with
79         DECL_SIZE (decl) check.
80
81 2006-02-23  Richard Guenther  <rguenther@suse.de>
82
83         PR middle-end/26439
84         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
85         like aggregate types.
86
87 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
88
89         * configure.ac: Add --with{,out}-long-double-128 configure option.
90         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
91         * configure: Rebuilt.
92         * config.in: Rebuilt.
93         * doc/install.texi (Options specification): Document
94         --with-long-double-128.
95
96         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
97         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
98         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
99         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
100
101 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
102
103         * config/s390/s390.c (override_options): Handle
104         TARGET_DEFAULT_LONG_DOUBLE_128.
105
106         * config/alpha/alpha.c (override_options): Handle
107         TARGET_DEFAULT_LONG_DOUBLE_128.
108
109         * config/sparc/sparc.c (sparc_override_options): Handle
110         TARGET_DEFAULT_LONG_DOUBLE_128.
111
112 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
113
114         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
115         (real-install-headers-tar, real-install-headers-cpio)
116         (real-install-headers-cp): New targets.
117
118 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
119
120         * tree.h (variable_section): Delete.
121         * varasm.c (variable_section): Delete.
122
123 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
124
125         * install.texi: Add notes on install.texi2html.
126         (Building in parallel): Do not use footnotes.
127
128 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
129
130         PR libgomp/26234
131         * doc/install.texi (Configuration): Document --disable-libgomp.
132
133 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
134
135         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
136
137 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
138
139         * config/i386/sse.md (vec_extractv2df_1_sse): New.
140         (vec_extractv2df_0_sse): New.
141
142 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
143
144         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
145         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
146         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
147         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
148         to the result of the expression.
149         (def_cfa_1): Adjust.
150         (frame_pointer_cfa_offset): Rename to...
151         (frame_pointer_fb_offset): ... this.  Adjust all uses.
152         (convert_cfa_to_loc_list): Rename to...
153         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
154         Pass it on to build_cfa_loc.
155         (compute_frame_pointer_to_cfa_displacement): Rename to...
156         (compute_frame_pointer_to_fb_displacement): ... this.  New
157         offset parameter.  Use it in computation.
158         (gen_subprogram_die): Compute cfa_fb_offset with the new
159         macro, and use it to compute the fb loc list and the
160         displacement.
161
162 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
163
164         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
165         replaced with register_operand.
166         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
167         non-DREG is expensive.
168         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
169         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
170         involving memory.
171
172 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
173
174         * doc/install.texi2html: Use set -e.
175
176 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
177
178         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
179         (ASM_OUTPUT_SHARED_LOCAL): Delete.
180         * doc/invoke.texi (-fshared-data): Delete.
181         * common.opt (fshared-data): Delete.
182         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
183         (assemble_static_space): Remove #if 0 code.
184         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
185         (ASM_OUTPUT_SHARED_LOCAL): Poison.
186         * config/cris/cris.h: Remove FIXME.
187
188 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
189
190         * doc/sourcebuild.texi (Front End Directory): No more double-colon
191         hooks.
192
193 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
194
195         PR middle-end/26379
196         * combine.c (simplify_shift_const_1): Disable nested shifts
197         optimization for vector shifts.
198
199 2006-02-20  Roger Sayle  <roger@eyesopen.com>
200
201         PR tree-optimization/26361
202         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
203         of unsigned integer types.
204
205 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
206
207         * tree-chrec.c (eq_evolutions_p): New.
208         * tree-chrec.h (eq_evolutions_p): Declared.
209         * tree-data-ref.c: Fix formatting.
210         (datadep_stats, dependence_stats): New.
211         (gcd): Moved...
212         (print_direction_vector): New.
213         (dump_data_dependence_relation): Use print_direction_vector.
214         (object_analysis, create_data_ref): Handle COMPONENT_REF.
215         (compute_subscript_distance): Static.
216         (initialize_data_dependence_relation): Static.  Get the number
217         of loops surrounding the references from the callers, and initialize
218         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
219         base_object_differ_p analyzers.
220         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine, 
221         compute_overlap_steps_for_affine_1_2,
222         analyze_subscript_affine_affine): Count the classified dependences.
223         Print a message when a test failed.
224         (can_use_analyze_subscript_affine_affine): New. 
225         (analyze_siv_subscript): Compute the data dependences on symbolic
226         scevs that verify can_use_analyze_subscript_affine_affine.
227         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
228         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
229         Handle symbolic scevs.
230         (analyze_overlapping_iterations): Let symbolic affine scevs to be
231         analyzed.
232         (subscript_dependence_tester): Moved...
233         (build_classic_dist_vector, build_classic_dir_vector): Don't use 
234         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
235         DDR_SIZE_VECT instead of getting it in parameter.
236         (subscript_dependence_tester): ... here.  Take as a parameter 
237         loop_nest_depth.  Call build_classic_dist_vector and
238         build_classic_dir_vector.
239         (compute_affine_dependence): Update subscript_dependence_tester 
240         parameters.  Update datadep_stats counters.  Call 
241         compute_subscript_distance.
242         (compute_self_dependence): Save the dist and dir vectors.  Call 
243         compute_subscript_distance.
244         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
245         (compute_all_dependences): Reorder parameters as they were before
246         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
247         compute_subscript_distance.  Update the use of 
248         compute_affine_dependence and initialize_data_dependence_relation.
249         (find_data_references_in_loop): Handle COMPONENT_REF.
250         (compute_data_dependences_for_loop): Initialize dependence_stats.
251         Don't call build_classic_dist_vector and build_classic_dir_vector.
252         Update the parameters of initialize_data_dependence_relation and 
253         compute_all_dependences.  Print the statistics from datadep_stats.
254         (analyze_all_data_dependences): Static.  Not used until the pass for
255         checking the data dependences is contributed.
256         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
257         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
258         (initialize_data_dependence_relation, compute_affine_dependence, 
259         analyze_all_data_dependences, compute_subscript_distance): Removed.
260         (print_direction_vector): New.
261         * lambda.h (gcd): ... here.
262         (lambda_vector_gcd): Moved here from gcd_vector.
263         * lambda-code.c (gcd, gcd_vector): Removed.
264         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
265         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
266
267 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
268
269         * ipa-type-escape.c: Tidy some comments and white space.
270         * tree-ssa-operands.c: Likewise.
271
272 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
273
274         PR tree-opt/25879
275         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
276         (dump_decl_name): Do not walk the decl tree chains.
277         * tree-pass.h (TDF_CHAIN): Remove.
278
279 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
280
281         * Makefile.in (C): Remove
282         (PROTO): Remove
283         (.PHONY): Remove C and PROTO
284
285 2006-02-20  Roger Sayle  <roger@eyesopen.com>
286
287         PR middle-end/26236
288         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
289         deprecated CHAR_TYPE tree code.
290
291 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
292
293         * configure.ac (target_list): Add install-info, dvi, html.
294         * configure: Regenerate.
295
296         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
297         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
298         treelang/Make-lang.in: Do not use double-colon rules.
299
300 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
301
302         * tree.h (struct tree_memory_tag): Add is_used_alone member.
303         (TMT_USED_ALONE): New macro.
304         * tree-pass.h (PROP_tmt_usage): New property.
305         (TODO_update_tmt_usage): New todo.
306         * tree-ssa-alias.c (updating_used_alone): New variable.
307         (recalculate_used_alone): New function.   
308         (compute_may_aliases): Set updating_used_alone, call
309         recalculate_used_alone. 
310         * tree-sra.c (pass_sra): Note that this pass destroys
311         PROP_tmt_usage, and add TODO_update_tmt_usage.
312         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
313         * tree-flow.h (updating_used_alone): Prototype.
314         (recalculate_used_alone): Ditto.
315         * passes.c (execute_todo): Add code to set updating_used_alone,
316         and call recalculate.
317         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
318         for clobber if used alone, and add assert to verify used_alone
319         status.
320         
321 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
322
323         * config/s390/s390.c (legitimize_pic_address): Assertions checking
324         for non tls symbols added.
325         (legitimize_address): Do nothing for PLUS expressions if one of the
326         addends is a tls symbol reference.
327
328 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
329
330         PR bootstrap/25476
331
332         * Makefile.in (LDFLAGS): Define from autoconf substitution.
333
334         * Makefile.in (BOOTSTRAPPING): New.
335         (quickstrap): New definition if BOOTSTRAPPING=yes.
336
337         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
338         * configure.ac: Substitute all_selected_languages with the languages
339         that were configured.  For all the other variables except
340         lang_specs_files, include all the languages in the tree.
341         * configure: Regenerate.
342         
343         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
344         if there is one.  Run the commands to run fixincludes in the same
345         subshell.
346
347         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
348         * doc/install.texi: Document exact conventions for searching target tools.
349         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
350         something more about building an Ada cross-compiler.  Don't list GNU Make
351         requirements which affect all platforms.
352
353 2006-02-19  Roger Sayle  <roger@eyesopen.com>
354
355         PR middle-end/19543
356         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
357         only equivalent if the have both the same mode and precision.
358
359 2006-02-20  Ben Elliston  <bje@au.ibm.com>
360
361         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
362
363 2006-02-19  Roger Sayle  <roger@eyesopen.com>
364             Steven Bosscher  <stevenb.gcc@gmail.com>
365
366         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
367         constant pool references to identify stack mode constants.
368         * rtlanal.c (constant_pool_constant_p): New predicate to check
369         whether operand is a floating point constant in the pool.
370         * rtl.h (constant_pool_constant_p): Prototype here.
371         * loop.c (scan_loop): Avoid hoisting constants from the constant
372         pool on STACK_REGS targets.
373         (load_mems): Likewise.
374         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
375         loads into x87 registers expensive in terms of register pressure.
376
377 2006-02-19  Roger Sayle  <roger@eyesopen.com>
378
379         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
380         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
381
382 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
383
384         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
385         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
386
387 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
388
389         * doc/invoke.texi: Document -fipa-pta.
390         * common.opt: Add ipa-pta option.
391         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
392         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
393         (do_ds_constraint): Ditto.
394         (get_constraint_for): Only add to referenced_vars if
395         referenced_vars exists.
396         (insert_into_field_list): Rewrite to do this unsorted.
397         (insert_into_field_list_sorted): Rename old insert_into_field_list
398         to this.
399         (create_function_info_for): Use insert_into_field_list_sorted.
400         (create_variable_info_for): Rewrite so it uses unsorted version,
401         since the field list is sorted.
402         (intra_create_variable_infos): Only add to referenced_vars if
403         referenced_vars exists.
404         (ipa_pta_execute): Init heapvars, and delete when done.
405         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
406
407 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
408
409         * doc/install.texi: Add missing `@samp'.
410
411 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
412
413         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
414         Use the arguments.
415
416 2006-02-18  Mark Wielaard  <mark@klomp.org>
417
418         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
419         who added new 4.1 features, bug fixes and integration support.
420
421 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
422
423         PR target/26350
424         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
425         MEM for ABI_V4 pic.
426
427 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
428
429         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
430         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
431         (copy_insn_1): Likewise.  Don't copy each field individually.
432         Reindent.
433         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
434         of RTX_SIZE.
435         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
436         * rtl.c (rtx_size): Rename variable to...
437         (rtx_code_size): ...this.
438         (rtx_size): New function.
439         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
440         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
441         Reindent.
442         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
443         * rtl.h (rtx_code_size): New variable.
444         (rtx_size): Change from a variable to a function.
445         (RTX_SIZE): Rename to...
446         (RTX_CODE_SIZE): ...this.
447
448         PR target/9703
449         PR tree-optimization/17106
450         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
451         (Anchored Addresses): New section.
452         * doc/invoke.texi (-fsection-anchors): Document.
453         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
454         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
455         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
456         * hooks.c (hook_bool_mode_rtx_false): New function.
457         * hooks.h (hook_bool_mode_rtx_false): Declare.
458         * gengtype.c (create_optional_field): New function.
459         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
460         SYMBOL_REF_IN_BLOCK_P is true.
461         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
462         (min_anchor_offset, max_anchor_offset): Likewise.
463         (use_anchors_for_symbol_p): New hook.
464         * toplev.c (compile_file): Call output_object_blocks.
465         (target_supports_section_anchors_p): New function.
466         (process_options): Check that -fsection-anchors is only used on
467         targets that support it and when -funit-at-a-time is in effect.
468         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
469         if the decl doesn't have one.
470         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
471         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
472         of force_const_mem through use_anchored_address.
473         (expand_expr_constant): New function.
474         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
475         calling expand_expr for INDIRECT_REF.
476         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
477         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
478         * expr.h (use_anchored_address): Declare.
479         * loop-unroll.c: Don't declare rtx vectors here.
480         * explow.c: Include output.h.
481         (validize_mem): Call use_anchored_address.
482         (use_anchored_address): New function.
483         * common.opt (-fsection-anchors): New switch.
484         * varasm.c (object_block_htab, anchor_labelno): New variables.
485         (hash_section, object_block_entry_eq, object_block_entry_hash)
486         (use_object_blocks_p, get_block_for_section, create_block_symbol)
487         (use_blocks_for_decl_p, change_symbol_section): New functions.
488         (get_variable_section): New function, split out from assemble_variable.
489         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
490         use_blocks_for_decl_p say so.  Use change_symbol_section if the
491         symbol has already been created.
492         (assemble_variable_contents): New function, split out from...
493         (assemble_variable): ...here.  Don't output any code for
494         block symbols; just pass them to place_block_symbol.
495         Use get_variable_section and assemble_variable_contents.
496         (get_constant_alignment, get_constant_section, get_constant_size): New
497         functions, split from output_constant_def_contents.
498         (build_constant_desc): Create a block symbol if use_object_blocks_p
499         says so.  Or into SYMBOL_REF_FLAGS.
500         (assemble_constant_contents): New function, split from...
501         (output_constant_def_contents): ...here.  Don't output any code
502         for block symbols; just pass them to place_section_symbol.
503         Use get_constant_section and get_constant_alignment.
504         (force_const_mem): Create a block symbol if use_object_blocks_p and
505         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
506         (output_constant_pool_1): Add an explicit alignment argument.
507         Don't switch sections here.
508         (output_constant_pool): Adjust call to output_constant_pool_1.
509         Switch sections here instead.  Don't output anything for block symbols;
510         just pass them to place_block_symbol.
511         (init_varasm_once): Initialize object_block_htab.
512         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
513         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
514         (place_block_symbol, get_section_anchor, output_object_block)
515         (output_object_block_htab, output_object_blocks): New functions.
516         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
517         (TARGET_ASM_OUT): Include it.
518         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
519         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
520         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
521         (TARGET_INITIALIZER): Include them.
522         * rtl.c (rtl_check_failed_block_symbol): New function.
523         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
524         (block_symbol, object_block): New structures.
525         (rtx_def): Add a block_symbol field to the union.
526         (BLOCK_SYMBOL_CHECK): New macro.
527         (rtl_check_failed_block_symbol): Declare.
528         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
529         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
530         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
531         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
532         * output.h (output_section_symbols): Declare.
533         (object_block): Name structure.
534         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
535         (default_use_anchors_for_symbol_p): Declare.
536         * Makefile.in (RTL_BASE_H): Add vec.h.
537         (explow.o): Depend on output.h.
538         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
539         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
540         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
541         (rs6000_use_blocks_for_constant_p): New function.
542
543 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
544
545         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
546
547 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
548
549         PR tree-opt/25680
550         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
551         IMAGPART_EXPR.
552
553 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
554
555         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
556         is_aliased.
557         Update all users.
558
559 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
560
561         PR middle-end/26334
562         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
563         instead of DECL_REGISTER.
564
565 2006-02-18  Olivier Hainque  <hainque@adacore.com>
566
567         PR ada/13408
568         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
569
570 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
571
572         PR target/24837
573         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
574         * opth-gen.awk: Handle Var and InverseMask together.
575         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
576         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
577         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
578         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
579         used together.
580         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
581         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
582         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
583         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
584         LINUX_DYNAMIC_LINKER): Define.
585         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
586         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
587         TARGET_GLIBC.
588         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
589         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
590         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
591         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
592         (TARGET_C99_FUNCTIONS): Don't define.
593         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
594         GLIBC_DYNAMIC_LINKER.
595         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
596         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
597         GLIBC_DYNAMIC_LINKER64): Define.
598         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
599         LINUX_DYNAMIC_LINKER64.
600         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
601         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
602         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
603         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
604         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
605         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
606         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
607         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
608         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
609         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
610         and LINUX_DYNAMIC_LINKER32.
611         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
612         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
613         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
614         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
615         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
616         TARGET_GLIBC.
617         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
618         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
619         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
620         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
621         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
622         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
623         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
624         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
625         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
626         LINUX_DYNAMIC_LINKER): Define.
627         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
628         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
629         GLIBC_DYNAMIC_LINKER64): Define.
630         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
631         LINUX_DYNAMIC_LINKER64.
632         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
633         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
634         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
635         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
636         LINUX_DYNAMIC_LINKER): Define.
637         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
638         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
639         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
640         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
641         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
642         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
643         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
644         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
645         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
646         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
647         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
648         * doc/invoke.texi (-muclibc): Remove caveat about supported
649         targets.
650
651 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
652
653         * doc/cpp.texi (__TIMESTAMP__): Document.
654
655 2006-02-17  Roger Sayle  <roger@eyesopen.com>
656
657         PR middle-end/25600
658         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
659         C is one less than the width of X (and related transformations).
660         * simplify_rtx.c (simplify_unary_operation_1): Transform 
661         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
662         depending on STORE_FLAG_VALUE, were C is one less then the
663         width of X.
664
665 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
666
667         Fix PR tree-optimization/26341
668         * tree-ssa-operands.c (add_virtual_operand): Remove assert 
669         about NAME_MEMORY_TAG's.
670
671 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
672
673         PR target/26255
674         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
675         with hardware float support, and software float support.  Add fcpy
676         alternative to hardware patterns.  Add alternatives to copy between
677         general and floating-point registers to the 32-bit pattern.
678         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
679         secondary reload to load a QI or HI mode constant into a floating
680         point register. 
681         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
682         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
683
684 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
685
686         PR target/26272
687         * config/rs6000/darwin.md (load_macho_picbase_si): Add
688         pc to the pattern.
689         (load_macho_picbase_di): Likewise.
690
691 2006-02-16  Jeff Law  <law@redhat.com>
692
693         * tree-vrp.c (set_value_range_to_nonnegative): New function.
694         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
695         (ssa_name_nonzero_p): Likewise.
696         (get_value_range): Return NULL if VRP is not running.
697         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
698         VRP routines do not discover a range.
699         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
700         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
701         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
702         (tree_expr_nonnegative_p): Similarly.
703         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
704         (restore_nonzero_vars_to_original_value): Remove.
705         (unsafe_associative_fp_binop): Remove.
706         (tree_ssa_dominator_optimize): Remove initialization and
707         finalization of nonzero_vars and nonzero_vars_stack.
708         (dom_opt_initialize_block): No longer push marker on
709         nonzero_vars_stack.
710         (dom_opt_finalize_block): No longer call
711         restore_nonzero_vars_to_original_value.
712         (record_equivalences_from_phis): No longer look for
713         nonzero PHI arguments.
714         (cprop_into_successor_phis): No longer propagate nonzero
715         property into PHI arguments.  Lose unused argument.  Caller
716         updated.
717         (record_equivalences_from_stmt): No longer record nonzero
718         values for SSA_NAMEs.
719         (lookup_avail_expr): No longer use nonzero_vars.
720
721         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
722         for sizetype when sizetype is unsigned.
723
724 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
725
726         PR rtl-optimization/25603
727         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
728         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
729         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p 
730         with new meaning of SETS.
731
732 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
733
734         PR target/20353
735         PR target/24578
736         PR target/24837
737         * config/linux.opt: New file.
738         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
739         LINUX_DYNAMIC_LINKER): Define.
740         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
741         * config.gcc (*-*-linux*): Define extra_options.
742         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
743         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
744         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
745         GLIBC_DYNAMIC_LINKER.
746         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
747         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
748         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
749         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
750         * doc/invoke.texi (GNU/Linux Options): New section.
751
752 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
753
754         * config/sparc/sparc.md (setjmp): Rewrite.
755         (setjmp_32): Delete.
756         (setjmp_64): Likewise.
757
758 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
759
760         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
761          previous change.
762
763 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
764
765         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
766         read-write uses.
767
768 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
769
770         PR rtl-optimization/26296
771         * Makefile.in (loop-invariant.c): Add except.h dependency.
772         * loop-invariant.c: Include except.h.
773         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
774
775 2005-02-16  Paul Brook  <paul@codesourcery.com>
776
777         * reload1.c (emit_reload_insns): Invalidate dead input registers used
778         for reloads.
779
780 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
781
782         PR rtl-optimization/25636
783         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
784         when deciding whether an insn is an initializing insn.
785
786 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
787
788         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
789         (tree_code_size): Ditto.
790         * tree.h (struct tree_memory_tag): Remove parent_var.
791         (struct tree_struct_field_tag): New.
792         (SFT_OFFSET): New.
793         (SFT_SIZE): New.
794         (union tree_node): Add sft member.
795         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
796         specially here.
797         (create_sft): Add size and offset argument, set SFT_OFFSET and
798         SFT_SIZE.
799         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
800         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
801         * tree-flow-inline.h (get_subvar_at): Update for
802         SFT_OFFSET/SFT_SIZE.
803         (var_can_have_subvars): Ditto.
804         (overlap_subvar): Ditto.
805         * print-tree.c (print_node): Print out interesting things for
806         SFT's.
807         * tree-flow.h (struct subvar): Remove offset and size members.
808         * tree-ssa-operands.c (get_expr_operands): Update for
809         get_indirect_ref_operands changes.
810         (get_indirect_ref_operands): Call add_virtual_operand instead of
811         add_stmt_operand.  Only recurse on base var if requested.
812         (access_can_touch_variable): New function.
813         (add_stmt_operand): Split virtual operand handling into ...
814         (add_virtual_operand): Here.  Add offset, size, and for_clobber
815         arguments.  Prune alias sets.
816         (add_call_clobber_ops): Call add_virtual_operand.
817         
818 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
819
820         PR middle-end/26300
821         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
822
823         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
824         than TREE_CODE as index into omp_clause_num_ops array.
825
826 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
827
828         PR rtl-optimization/26184
829         * modulo-sched.c (generate_reg_moves): Free bitmap vector
830         uses_of_defs.
831         * modulo-sched.c (sms_schedule): Free g_arr pointer.
832         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
833         must_precede, must_follow and tobe_scheduled.
834
835         PR other/26147
836         * opts.c (common_handle_option): Free new_option pointer.
837         * df-core.c (df_analyze): Free postorder pointer.
838
839 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
840
841         * Makefile.in: Fix the examples about the use of stamps
842
843 2006-02-15  Michael Matz  <matz@suse.de>
844
845         PR middle-end/22275
846
847         * stor-layout.c (layout_decl): Zero-width bitfields aren't
848         influenced by maximum_field_alignment or DECL_PACKED.
849         (update_alignment_for_field): Ditto.
850         (place_field): Ditto.
851         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
852         this behaviour.
853
854 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
855
856         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
857         (debug_flow_info): Pass it.
858         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
859         * bb-reorder.c (reorder_basic_blocks): Likewise.
860         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
861         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
862         * flow.c (life_analysis, recompute_reg_usage): Likewise.
863         * gcse.c (gcse_main, bypass_jumps): Likewise.
864         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
865         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
866         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
867         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
868         * rtl.h (dump_flow_info): Adjust prototype.
869         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
870         * var-tracking.c (variable_tracking_main): Likewise.
871         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
872         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
873         options.
874
875 2006-02-15  Marcin Dalecki <martin@dalecki.de>
876
877         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
878         construction.
879
880 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
881
882         PR tree-optimization/26209
883         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
884         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
885         eh edges.
886         * tree-cfg.c (replace_uses_by): Do not alter cfg.
887
888 2006-02-14  Roger Sayle  <roger@eyesopen.com>
889
890         PR middle-end/23670
891         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
892         (X,Y) and the corresponding symmetry related transformations.
893         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
894         (X,Y) and its symmetry related transformations.
895
896 2006-02-14  Roger Sayle  <roger@eyesopen.com>
897
898         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
899         and GEU.
900
901 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
902
903         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
904
905 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
906
907         PR bootstrap/26053
908         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
909         support COMDAT group.
910         * configure: Regenerate.
911
912 2006-02-14  Roger Sayle  <roger@eyesopen.com>
913
914         PR middle-end/26279
915         PR middle-end/26280
916         PR middle-end/26283
917         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
918
919 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
920
921         Fix PR tree-optimization/26260
922
923         * doc/invoke.texi (max-fields-for-field-sensitive): Document
924         param.
925         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
926         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
927         * tree-ssa-structalias.c (create_variable_info_for): Use
928         MAX_FIELDS_FOR_FIELD_SENSITIVE.
929         
930 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
931
932         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
933         Document.
934         * tree-ssa-loop-niter.c (number_of_iterations_ne,
935         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
936         of the ending condition.
937         * tree-ssa-loop-manip.c: Include params.h.
938         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
939         tree_unroll_loop): New functions.
940         * tree-pass.h (pass_loop_prefetch): Declare.
941         * loop.c (rest_of_handle_loop_optimize): Test for
942         -fprefetch-loop-arrays-rtl.
943         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
944         * timevar.def (TV_TREE_PREFETCH): New timevar.
945         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
946         pass_loop_prefetch): New.
947         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
948         (cleanup_tree_cfg_loop): Call scev_reset.
949         * common.opt (fprefetch-loop-arrays-rtl): Add.
950         * tree-ssa-loop-prefetch.c: New file.
951         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
952         (new_temp_expr_table): Initialize expr_vars.
953         (free_temp_expr_table): Cleanup expr_vars.
954         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
955         expressions from being merged into one.
956         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
957         (struct tree_niter_desc): Add control, bound and cmp fields.
958         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
959         Declare.
960         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
961         (tree-cfgcleanup.o): Add SCEV_H dependency.
962         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
963         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
964
965 2006-02-14  Richard Guenther  <rguenther@suse.de>
966
967         PR tree-optimization/26258
968         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
969         in PHI argument processing.
970
971 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
972
973         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
974         new expression in the requested machine mode.
975
976 2006-02-13  Roger Sayle  <roger@eyesopen.com>
977
978         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
979         directly, instead let do_compare_rtx_and_jump handle this for us.
980         * expr.c (expand_expr_real_1): Likewise.
981         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
982         before do_jump_by_parts_greater.
983         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
984         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
985
986 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
987
988         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
989
990 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
991
992         PR rtl-optimization/26235
993         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
994         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
995         format.
996
997 2006-02-13  Jeff Law  <law@redhat.com>
998
999         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1000         TRUTH_XOR_EPR.
1001
1002 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1003
1004         PR middle-end/26092
1005         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1006         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1007         first to verify it is still a builtin.
1008
1009 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1010
1011         * dwarf2out.c (base_type_die): Don't add AT_name here.
1012         (subrange_type_die): Don't add AT_name here.
1013         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1014
1015 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1016
1017         PR rtl-optimization/26247
1018         PR rtl-optimization/26248
1019         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
1020
1021 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
1022
1023         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
1024         * config/fixtfdi.c: Likewise.
1025         * config/fixunstfdi.c: Likewise.
1026         * config/floatditf.c: Likewise.
1027
1028 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1029
1030         PR middle-end/24427
1031         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
1032         into (X,C2) if C1 is a subset of the bits of C2.  Transform
1033         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
1034         (X&(C1&~C2))|C2.
1035         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1036
1037 2006-02-13  Josh Conner  <jconner@apple.com>
1038
1039         PR target/25376
1040         * varasm.c (function_section): Check for section name before
1041         calling select_section on targets that define
1042         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1043         unlikely_text_section instead of hot_function_section if
1044         first_function_block_is_cold.
1045
1046 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1047
1048         PR middle-end/25335
1049         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1050
1051 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1052
1053         PR rtl-optimization/26222
1054         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1055         after tree->rtl expansion.
1056         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1057         before passing it to emit_move_insn.
1058
1059 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1060
1061         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1062         default. 
1063         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1064         Clarify documentation.
1065         * c-common.h (warn_write_strings): Remove.
1066         * c-common.c (warn_write_strings): Likewise.
1067         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1068         default for C++.
1069
1070 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1071
1072         PR middle-end/25724
1073         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1074         (do_jump_parts_zero_rtx): New function renamed from
1075         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1076         (do_jump_parts_equality_rtx): New function split out from
1077         do_jump_parts_equality.  Old implementation renamed as above.
1078         Call do_jump_parts_zero_rtx if either operand is zero.
1079         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1080         do all of the heavy lifting.
1081         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1082         calling either do_jump_by_parts_greater_rtx or
1083         do_jump_by_parts_equality_rtx.
1084         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1085         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1086         moved to do_compare_rtx_and_jump, call it directly.
1087         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1088         mode argument.  Call do_compare_rtx_and_jump.
1089         (emit_case_nodes): Update calls to do_jump_if_equal.
1090
1091 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1092
1093         PR rtl-optimization/26225
1094         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1095
1096 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1097
1098         PR rtl-optimization/26232
1099         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1100
1101 2006-02-11  Jason Merrill  <jason@redhat.com>
1102
1103         PR tree-opt/24365
1104         * tree-inline.c (declare_return_variable): Just don't use the
1105         modify target if it's a gimple complex reg and the return slot
1106         isn't.
1107
1108 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1109
1110         * doc/contrib.texi: Update my entry.
1111
1112 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1113
1114         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1115
1116 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1117
1118         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1119         expensive.
1120
1121 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1122
1123         * doc/invoke.texi (-floop-optimize2): Removed.
1124         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1125         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1126         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1127         * common.opt (floop-optimize2): Removed.
1128         (fmove-loop-invariants): Enabled by default.
1129
1130 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1131
1132         * tree-if-conv.c (combine_blocks): Free the result of
1133         get_loop_exit_edges.
1134
1135 2006-02-10  Jeff Law  <law@redhat.com>
1136
1137         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1138
1139         PR tree-optimization/26213
1140         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1141         loop trying to follow SSA_NAME_VALUE chains.
1142
1143 2006-02-10  Richard Guenther  <rguenther@suse.de>
1144
1145         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1146         deal with structures that end in implicitly variable sized arrays.
1147
1148 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1149
1150         PR rtl-optimization/24762
1151         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1152         eh edges.
1153
1154 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1155
1156         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1157         (struct ivopts_data): Add regs_used field.
1158         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1159         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1160         instead of loop_data->regs_used;
1161         (free_loop_data): Do not free aux fields for loops.
1162         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1163         and tree_ssa_iv_optimize_finalize.
1164
1165 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1166
1167         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1168
1169 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1170
1171         PR target/26141
1172         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1173         computing the effective result type.
1174
1175 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1176
1177         PR inline-asm/16194
1178         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1179         (tree_overlaps_hard_reg_set): Declare.
1180         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1181         type and signature to match function type expected by walk_tree.
1182         (tree_overlaps_hard_reg_set): New function.
1183         (decl_conflicts_with_clobbers_p): Rename to:
1184         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1185         Use tree_overlaps_hard_reg_set.  Changed caller.
1186         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1187         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1188         * cris.c (cris_md_asm_clobbers): Likewise.
1189
1190 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1191
1192         * reload1.c (emit_input_reload_insns): Delete code that tries to
1193         inherit using find_equiv_reg.
1194
1195 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1196
1197         * c-common.h (flag_const_strings): Don't declare.
1198         * c-common.c (flag_const_strings): Remove.
1199         * c.opt (fconst_strings): Remove.
1200         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
1201         <OPT_Wwrite_strings>: Don't set flag_const_strings.
1202         (c_common_init_options): Don't set flag_const_strings.
1203         * doc/invoke.texi (-fno-const-strings): Remove documentation.
1204
1205 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
1206
1207         * arm.md (tlobits_cbranch): New pattern.
1208         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
1209         testing a single bit.
1210
1211 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1212
1213         PR tree-opt/26179
1214         * tree-ssa-pre.c (create_component_ref_by_pieces):
1215         Handle RETURN_DECL like VAR_DECL.
1216
1217 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1218
1219         PR middle-end/26134
1220         * fold-const.c (fold_indirect_ref_1): Fold 
1221         "*(foo *)&complexfoo" to "__real__ complexfoo"
1222         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
1223
1224 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1225
1226         * tree-flow-inline.h (var_can_have_subvars): 
1227         Volatile variables should not have subvariables.
1228
1229 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
1230
1231         PR 26180
1232         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
1233         multiplying unsigned values.
1234         Tidy comments.
1235
1236 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
1237
1238         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
1239
1240 2006-02-08  Jason Merrill  <jason@redhat.com>
1241
1242         PR c++/25979
1243         * tree.def: Elaborate on difference from MODIFY_EXPR.
1244         * doc/c-tree.texi (INIT_EXPR): Likewise.
1245         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
1246         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
1247         (gimplify_target_expr): Likewise.
1248         (gimplify_cond_expr): Remove target handling.
1249         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
1250         (gimplify_expr): Clobber it here.
1251         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
1252         Do return slot optimization if we have an INIT_EXPR.
1253
1254         PR tree-opt/24365
1255         * tree-inline.c (declare_return_variable): Also clear 
1256         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
1257
1258         PR c++/16405
1259         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
1260
1261         PR middle-end/22439
1262         * gimplify.c (gimplify_one_sizepos): Fix typo.
1263
1264 2006-02-08  Jeff Law  <law@redhat.com>
1265
1266         PR tree-optimization/21417
1267         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
1268         across a backedge if the control statement at the end of the
1269         block is data dependent on other statements in the same block.
1270         (record_temporary_equivalences_from_stmts): Remove over-conservative
1271         test for threading across backedges.
1272
1273         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
1274         control statement, handle all three special cases in the same
1275         manner as they all have the same desired solution.  No longer
1276         special case edge flag updating when the post dominator is
1277         the exit block.
1278
1279 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1280
1281         * tree.def (CHAR_TYPE): Remove.
1282         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
1283         * dwarf2out.c (base_type_die, is_base_type): Likewise.
1284         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
1285         (gen_string_type_die): Delete unreachable function.
1286
1287         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
1288         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
1289         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
1290         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
1291         * builtins.c (type_to_class): Likewise.
1292         * fold-const.c (fold_convert, build_range_check,
1293         merge_ranges): Likewise.
1294         * expr.c (count_type_elements): Likewise.
1295         * c-pretty-print.c (pp_c_type_specifier): Likewise.
1296         * stor-layout.c (layout_type): Likewise.
1297         * ipa-type-escape.c (type_to_consider): Likewise.
1298         * gimplify.c (omp_firstprivatize_type_sizes,
1299         gimplify_type_sizes): Likewise.
1300         * explow.c (promote_mode): Likewise.
1301         * tree-sra.c (is_sra_scalar_type): Likewise.
1302         * varasm.c (output_constant): Likewise.
1303         * tree-inline.c (remap_type_1): Likewise.
1304         * convert.c (convert_to_pointer, convert_to_real,
1305         convert_to_integer, convert_to_complex): Likewise.
1306
1307 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
1308
1309         * df-scan.c (df_def_record_1): A set destination may
1310         be a parallel regardless of mode.
1311
1312 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1313
1314         PR target/22209
1315         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
1316         * config/mips/_tilib.c: Remove.
1317         * config/fixtfdi.c: New libgcc source file.
1318         * config/fixunstfdi.c: New source file.
1319         * config/floatditf.c: New source file.
1320         * config/floatunditf.c: New souce file.
1321         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
1322         files above instead of config/mips/_tilib.c.
1323         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
1324
1325 2006-02-08  Jeff Law  <law@redhat.com>
1326
1327         PR tree-optimization/26169
1328         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
1329         threading jumps.
1330
1331 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
1332
1333         * df.h (DF_REG_SIZE): Return the length of the initialized
1334         part of the array.
1335
1336 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
1337
1338         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
1339         __muldf3): Return a correctly signed zero.
1340
1341 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
1342
1343         * passes.c (register_one_dump_file): Accept the current properties
1344         instead of pass number.  Adjust call to dump_register.  Remove
1345         duplicated code.
1346         (register_dump_files): Now a wrapper around...
1347         (register_dump_files_1): ... this one.  Do not modify the pass
1348         structure.
1349         (next_pass_1): Cosmetic fix.
1350         (execute_todo): Keep second parameter only.  Use curr_properties
1351         instead of fetching it from the pass structure.  Check and set
1352         last_verified.
1353         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
1354         instead of fetching it from the pass structure.  Fix calls to
1355         execute_todo.  Update curr_properties and initialize .vcg RTL dump
1356         after running the pass.  Reset last_verified.
1357         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
1358         at the beginning.
1359         (FIRST_AUTO_NUMBERED_DUMP): New.
1360         (dump_register): Remove "num" parameter, assign it within the
1361         function.
1362         (get_dump_file_name): Modify template for dumps.
1363         * tree-dump.h (dump_register): Adjust prototype.
1364         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
1365         (PROP_trees): Add PROP_gimple_lomp.
1366         (TODO_set_props): New.
1367         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
1368         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
1369         * cfgexpand.c (pass_expand): Destroy PROP_trees.
1370
1371 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
1372
1373         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
1374         (sparc64-*-linux*): Likewise.
1375         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
1376         * config/sparc/t-linux: New file.
1377         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
1378         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
1379         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
1380         -m32 -mlong-double-128.
1381
1382         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
1383         * config/alpha/t-linux: New file.
1384         * config/alpha/libgcc-alpha-ldbl.ver: New file.
1385
1386         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
1387         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
1388         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
1389         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
1390         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
1391         (CPP_ARCH32_SPEC): Remove.
1392
1393 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
1394
1395         PR tree-optimization/26145
1396         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
1397         bbs pointer.
1398
1399 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1400
1401         PR target/26109
1402         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
1403         >= 240000 when generating code for SOM runtime.
1404         (output_indirect_call): Don't use "b,l" instruction for indirect calls
1405         to $$dyncall when generating code for SOM runtime..
1406
1407 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1408
1409         PR c++/18150
1410         * doc/invoke.texi (-Wsequence-point): Update documentation
1411         that -Wsequence-point is implemented for C++ as well.
1412
1413 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1414
1415         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
1416         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
1417         (LIB_SPEC): Likewise.
1418         * doc/invoke.texi (SPARC options): Document -pthread.
1419
1420 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
1421
1422         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
1423         PIC addresses.
1424
1425 2006-02-07  Roger Sayle  <roger@eyesopen.com>
1426
1427         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
1428         Correct comment describing BOOLEAN_TYPE.
1429
1430 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1431
1432         * c.opt: C++ frontend supports -Wdiv-by-zero.
1433         * c-opts.c (c_common_handle_option): Remove dead case.
1434
1435 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1436
1437         * configure.ac (TLS assembler check): Do not enable TLS by
1438         default on SPARC/Solaris before version 10.
1439         * configure: Regenerate.
1440
1441 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
1442
1443         * doc/invoke.texi (xl-compat): Document conversion and support
1444         routine names.
1445
1446 2006-02-07  Jeff Law  <law@redhat.com>
1447
1448         * tree-vrp.c (find_conditional_asserts): Update comments.
1449         (simplify_stmt_for_jump_threading): New.
1450         (identify_jump_threads, finalize_jump_threads): New.
1451         (vrp_finalize): Call identify_jump_threads.
1452         (execute_vrp): Call finalize_jump_threads.
1453         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
1454         (vrp_element, vrp_data, vrp_element_p): Remove.
1455         (vrp_hash_elt, vrp_variables_stack): Remove.
1456         (vrp_hash, vrp_eq, record_range): Remove.
1457         (simplify_cond_and_lookup_avail_expr): Remove.
1458         (extract_range_from_cond): Remove.
1459         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
1460         (simplify_stmt_for_jump_threading): New.
1461         (dom_thread_across_edge): New wrapper.
1462         (tree_ssa_dominator_optimize): No longer initialize or
1463         finalize any of the VRP datastructures.  Remove iteration
1464         step and simplify as a result of removal of iteration step.
1465         (pass_dominator): Perform a cfg cleanup after DOM.
1466         (dom_opt_finalize_block): Use the new common routines
1467         for threading jumps.  Simplify stack management slightly.
1468         No longer need to unwind VRP state.
1469         (record_equivalences_from_incoming_edge): No longer record
1470         VRP information.
1471         (eliminate_redundant_computations): No longer call
1472         simplify_cond_and_lookup_avail_expr.
1473         * tree-flow.h (potentially_threadable_block): Prototype.
1474         (thread_across_edge): Likewise.
1475         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
1476         (tree-ssa-threadedge.o): Add dependencies.
1477         * tree-ssa-threadedge.c: New file.
1478         * passes.c (init_optimization_passes): Merge PHIs before
1479         calling VRP.  Run VRP again late in the SSA optimization pipeline.
1480
1481 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1482
1483         * df-core.c (df_set_blocks): Do not dereference function pointers.
1484         (df_finish1): Likewise.
1485         (df_hybrid_search_forward): Likewise.
1486         (df_hybrid_search_backward): Likewise.
1487         (df_iterative_dataflow): Likewise.
1488         (df_analyze_problem): Likewise.
1489         (df_compact_blocks): Likewise.
1490         (df_dump): Likewise.
1491         * df-scan.c (df_rescan_blocks): Likewise.
1492         (df_record_entry_block_defs): Likewise.
1493
1494         * genconditions.c (write_conditions): Guard the definition of
1495         'insn_conditions' with the check on GCC version.
1496         (write_writer): Guard the traversal 'insn_conditions' with
1497         the check on GCC version.
1498
1499 2006-02-07  Richard Guenther  <rguenther@suse.de>
1500
1501         PR c++/26140
1502         Revert
1503         2006-01-30  Richard Guenther  <rguenther@suse.de>
1504         PR c++/23372
1505         * gimplify.c (gimplify_target_expr): Handle easy cases
1506         without creating a temporary.
1507
1508 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
1509
1510         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
1511         use of float in probability computations.  Use edge probabilities
1512         in place of statically computed probabilities.
1513         (min_spec_prob): New static variable.
1514         (schedule_insns): Initialize it.
1515         (GET_SRC_PROB): Removed.
1516         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
1517
1518 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
1519
1520         PR debug/24444
1521         * config/ia64/unwind-ia64.c: Revert last change.
1522         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
1523         (INCOMING_FRAME_SP_OFFSET): Define.
1524
1525 2006-02-06  Roger Sayle  <roger@eyesopen.com>
1526
1527         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
1528
1529 2006-02-07  Ben Elliston  <bje@au.ibm.com>
1530
1531         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
1532         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
1533         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
1534         (ix86_return_in_memory): Handle TDmode.
1535         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
1536         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
1537
1538 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
1539
1540         * reorg.c (dbr_schedule): Use dump_file instead of file.
1541
1542 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
1543
1544         PR target/25917
1545         * config/ia64/predicates.md (extr_len_operand): New predicate.
1546         * config/ia64/ia64.md (extv): Tighten constraints.
1547         (extzv): Ditto.
1548         (*tbit_and_2): Ditto.
1549         (*tbit_and_3): Ditto.
1550         (*tbit_or_2): Ditto.
1551         (*tbit_or_3): Ditto.
1552         (*bit_zero): Ditto.
1553         (*bit_one): Ditto.
1554
1555 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
1556
1557         PR target/23359
1558         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
1559
1560 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1561
1562         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
1563         loop_optimizer_init and loop_optimizer_finalize
1564         * tree-ssa-sink.c (execute_sink_code): Ditto.
1565         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1566         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
1567         tree_ssa_loop_done): Ditto.
1568         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
1569         * sched-ebb.c: Include output.h.
1570         (schedule_ebbs): Do not use dump argument.
1571         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
1572         * loop.c (loop_dump_stream): Removed.
1573         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
1574         argument.
1575         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
1576         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
1577         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
1578         loop_iterations, strength_reduce, record_biv, record_giv,
1579         final_giv_value, check_final_value, check_ext_dependent_givs,
1580         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
1581         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
1582         dump_file instead of loop_dump_stream.
1583         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
1584         argument dump_file.
1585         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
1586         dump argument.
1587         * flow.c (life_analysis, rest_of_handle_life): Ditto.
1588         * haifa-sched.c: Include output.h
1589         (schedule_insns, sched_init): Do not use dump argument.
1590         * mode-switching.c (optimize_mode_switching): Ditto.
1591         * modulo-sched.c (stats_file): Removed.
1592         (print_node_sched_params): Do not call argument dump_file.
1593         (sms_schedule_by_order, loop_canon_p, sms_schedule,
1594         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
1595         of stats_file.
1596         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
1597         use dump argument.
1598         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
1599         rtl_loop_init, rtl_loop_done): Ditto.
1600         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
1601         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
1602         Ditto.
1603         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
1604         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
1605         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
1606         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
1607         * emit-rtl.c (renumber_insns): Ditto.
1608         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
1609         expand_gimple_basic_block, tree_expand_cfg): Ditto.
1610         * regclass.c (regclass): Ditto.
1611         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
1612         remove_ssa_form, rewrite_out_of_ssa): Ditto.
1613         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
1614         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
1615         Ditto.
1616         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
1617         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
1618         to regclass.
1619         * gcse.c (gcse_file, debug_stderr): Removed.
1620         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
1621         rest_of_handle_gcse): Do not use dump argument.
1622         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
1623         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
1624         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
1625         compute_code_hoist_vbeinout, compute_code_hoist_data,
1626         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
1627         compute_store_table, build_store_vectors, insert_insn_start_bb,
1628         insert_store, remove_reachable_equiv_notes, replace_store_insn,
1629         store_motion): Use dump_file instead of gcse_file.
1630         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
1631         * profile.c (profile_dump_file): Removed.
1632         (branch_prob): Use dump_file instead of profile_dump_file.
1633         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
1634         dump_file.
1635         * tree-ssa-copy.c (dump_copy_of): Ditto.
1636         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
1637         dump file to life_analysis.
1638         * bt-load.c (branch_target_load_optimize): Ditto.
1639         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
1640         renumber_insns.
1641         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
1642         regclass, dbr_schedule): Declaration changed.
1643         * sched-int.h (sched_init): Declaration changed.
1644         * tree-profile.c (tree_profile_dump_file): Removed.
1645         (tree_profile_hooks): Removed profile_dump_file hook.
1646         * rtl-profile (rtl_profile_dump_file): Removed.
1647         (rtl_profile_hooks): emoved profile_dump_file hook.
1648         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
1649         changed.
1650         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
1651         * tree-cfg.c (build_tree_cfg): Ditto.
1652         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
1653         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
1654         Declaration changed.
1655         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
1656         life_analysis and schedule_insns.
1657         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
1658         life_analysis.
1659         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
1660         dbr_schedule.
1661         * config/mips/mips.c (mips_reorg): Ditto.
1662         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
1663         schedule_ebbs.
1664
1665 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
1666
1667         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1668         (s390_mangle_fundamental_type): New.
1669         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1670         Define.
1671
1672         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1673         (alpha_mangle_fundamental_type): New.
1674         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1675         Define.
1676
1677         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1678         Define.
1679         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1680         Define.
1681         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1682         (sparc_mangle_fundamental_type): New.
1683
1684 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
1685
1686         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
1687         (s390x-*-linux*): Likewise.
1688         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
1689         * config/s390/t-linux: New file.
1690
1691 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1692
1693         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
1694         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
1695
1696 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
1697
1698         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
1699         (ANTIC_SAFE_LOADS): New macro.
1700         (find_or_generate_expression): Add prototype.
1701         (set_contains_value): Allow null set for sake of not always having
1702         to allocate ANTIC_SAFE_LOADS.
1703         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
1704         Allow COMPONENT_REF too.
1705         (valid_in_set): Allow COMPONENT_REF.
1706         Check ANTIC_SAFE_LOADS too.
1707         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
1708         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
1709         rename.
1710         (can_PRE_operation): Add COMPONENT_REF.
1711         (create_component_ref_by_pieces): New function.
1712         (create_expression_by_pieces): Use create_component_ref_by_pieces.
1713         (insert_aux): Move AGGREGATE_TYPE_P check here.
1714         (compute_avail): Set bb local stmt uids.
1715         (pass_pre): Use TODO_update_ssa_only_virtuals.
1716         
1717 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1718
1719         * configure.ac: Unconditionally disable decimal float by default.
1720         * configure: Regenerate.
1721
1722 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1723
1724         * read-rtl.c (read_name): Terminate reading on EOF.
1725
1726 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1727
1728         * dfp.c (decimal_real_arithmetic): Change second argument type
1729         from int to enum tree_code. Do not always return true, but now
1730         return result of any call to decimal_do helper functions.
1731         * dfp.h (decimal_real_arithmetic): Update prototype.
1732
1733 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
1734
1735         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
1736
1737 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
1738
1739         PR tree-opt/25251
1740         * tree-cfg.c (cleanup_dead_labels): Also don't remove
1741         forced labels.
1742
1743 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1744
1745         * tree-vrp.c (cfg_loops): Removed.
1746         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
1747         Use current_loops instead of cfg_loops.  Pass flags to
1748         loop_optimizer_init.
1749         * cfgloopmanip.c (fix_loop_structure): Update only available
1750         information.
1751         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
1752         loop_optimizer_init.
1753         * modulo-sched.c (build_loops_structure): Removed.
1754         (sms_schedule): Use loop_optimizer_init.
1755         * loop-init.c (loop_optimizer_init): Use flags to determine
1756         which properties of loops to prepare.
1757         (rtl_loop_init): Pass flags to loop_optimizer_init.
1758         * tree-ssa-sink.c (execute_sink_code): Ditto.
1759         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
1760         * tree-ssa-pre.c (init_pre): Ditto.
1761         * cfgloop.h (LOOPS_NORMAL): New.
1762         (loop_optimizer_init): Declaration changed.
1763
1764 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1765
1766         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
1767         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
1768         pa/t-pa.
1769         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
1770         pa/t-pa.
1771         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
1772         pa/x-ada.
1773         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
1774         * pa/t-pa64: Delete quadlib.c rule.
1775         * pa/x-ada: Revert last change.
1776         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
1777
1778 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1779
1780         PR rtl-optimization/26087
1781         * rtlanal.c (canonicalize_condition): Do not cross basic block
1782         boundaries.
1783
1784 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
1785
1786         PR debug/24444
1787         * config/ia64/ia64.c: Include debug.h.
1788         (MAX_ARTIFICIAL_LABEL_BYTES): New.
1789         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
1790         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
1791         (process_epilogue, process_set, process_for_unwind_directive):
1792         Output unwind info only if requested.  Add CFA info if requested.
1793         Add new arguments as needed.  Adjust callers.
1794         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
1795         incorrect default.
1796         (DWARF2_FRAME_INFO): Define to zero.
1797         * config/ia64/unwind-ia64.c: Remove code that compensated for
1798         the CFA offset error fixed above.
1799         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
1800         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
1801         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
1802         -funwind-tables and -fexceptions to enable frame info.
1803         (dwarf2out_frame_init): Define initial CFA even if
1804         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
1805         DWARF2_UNWIND_INFO is nonzero, not just defined.
1806         (dwarf2out_frame_finish): Output non-EH call frame info only
1807         if DWARF2_FRAME_INFO is nonzero.
1808         (convert_cfa_to_loc_list,
1809         compute_frame_pointer_to_cfa_displacement): Define even if
1810         unwind info is not supported.
1811         (gen_subprogram_die): Use the above unconditionally.  Remove
1812         legacy alternate code.
1813         * toplev.c (compile_file): Compile in call to
1814         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
1815         (lang_dependent_init): Ditto for dwarf2out_frame_init.
1816
1817 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
1818             Jakub Jelinek  <jakub@redhat.com>
1819
1820         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
1821         IBM extended float format long double as "g" on powerpc*-linux.
1822
1823 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1824
1825         PR target/25926
1826         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
1827         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
1828
1829 2006-02-03  Jason Merrill  <jason@redhat.com>
1830
1831         PR c++/25979
1832         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
1833
1834         PR middle-end/25977
1835         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
1836         on the return slot if it's an NRV.
1837
1838 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
1839
1840         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
1841         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
1842         rewrite_use): Do not handle USE_OUTER.
1843         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
1844         add_iv_outer_candidates, may_replace_final_value,
1845         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
1846         (find_interesting_uses_op): Functionality of
1847         find_interesting_uses_outer_or_nonlin moved here.
1848         (find_interesting_uses_outside): Use find_interesting_uses_op.
1849
1850 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
1851
1852         PR target/25960
1853         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
1854
1855 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
1856             Ulrich Weigand  <uweigand@de.ibm.com>
1857
1858         PR target/25864
1859         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
1860         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
1861         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
1862         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
1863         and dxr fields.
1864         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
1865         (s390_rtx_costs): Use the new fields to calculate rtx costs.
1866         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
1867         Define secondary reloads for TFmode moves.
1868         (constant_modes): Add TFmode.
1869         (NR_C_MODES): Set to 8.
1870         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
1871         builtin define.
1872         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
1873         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
1874         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
1875         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
1876         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
1877         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
1878         (FPR mode macro): Add TFmode.
1879         (DSF mode macro): New.
1880         (<de>, <dee> mode attributes): Removed.
1881         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
1882         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
1883         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
1884         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
1885         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
1886         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
1887         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1888         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
1889         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
1890         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1891         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
1892         "*negabs<mode>2", "sqrt<mode>2"):
1893         Changed <de> to <xde>. R constraint replaced by <Rf>.
1894         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
1895         <Rf>.
1896         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1897         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1898         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
1899         splitters.
1900         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
1901         "extenddftf2", "extendsftf2"): New expanders.
1902         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
1903         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1904         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1905         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1906         New options.
1907         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1908         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
1909         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1910         __floatditf): Add a GCC_4.1.0 symbol version tag.
1911         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1912         the new options.
1913
1914 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1915
1916         PR target/25377
1917         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1918         Use targetm.binds_local_p instead of TREE_PUBLIC.
1919
1920 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1921
1922         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1923         on INTEGER_TYPEs to indicate that it denotes a character type.
1924         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1925         signed_char_type_node, unsigned_char_type_node and char_type_node.
1926         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1927         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1928         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1929
1930 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1931             Daniel Berlin  <dberlin@dberlin.org>
1932
1933         * tree-tailcall.c (arg_needs_copy_p): New function.
1934         (eliminate_tail_call): Use arg_needs_copy_p.
1935         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1936         (add_virtual_phis): New function.
1937
1938 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1939
1940         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1941         #ignore instead of #scratch for %g7 .register directive.
1942
1943 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1944
1945         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1946         object files.
1947
1948 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1949
1950         * flow.c (calculate_global_regs_live): Assert that there aren't any
1951         EDGE_FAKE edges.
1952
1953 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1954
1955         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1956         what its name says.
1957         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1958         bsi_after_labels iterator.
1959         * tree-if-conv.c (find_phi_replacement_condition,
1960         replace_phi_with_cond_modify_expr): Likewise.
1961         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1962         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1963
1964 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1965
1966         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1967
1968 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1969
1970         PR 25990
1971         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1972         array after growing it.
1973
1974 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1975
1976         PR middle-end/24901
1977         * fold-const.c (fold_checksum_tree): Change type of buf.
1978
1979 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1980
1981         * reload.c (push_secondary_reload): Initialize t_icode.
1982
1983 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1984
1985         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1986         -msoft-float -mlong-double-128 only issue a warning, but don't
1987         swich to DFmode long double.
1988
1989 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1990
1991         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1992         has a constant equivalent, iterate over equivalents for arg0,
1993         calling simplify_relational_operation and if there's a result
1994         cheaper than X, apply fold_rtx and return the result.
1995
1996 2006-02-01  Jan Hubicka  <jh@suse.cz>
1997
1998         * opts.c (no_unit_at_a_time_default): New global variable.
1999         (decode_options): Use it.
2000         * opts.h (no_unit_at_a_time_default): Declare.
2001
2002 2006-02-01  Paul Brook  <paul@codesourcery.com>
2003
2004         * function.c (assign_parm_setup_reg): Use function argument promotion
2005         rules.
2006         * expr.c (expand_expr_real_1): Use function argument promotion rules
2007         for PARM_DECLs.
2008
2009 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2010
2011         * gcc.c (process_command): Change j to 'unsigned int'.
2012
2013 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2014
2015         PR middle-end/26001
2016         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
2017         Use the corrected index for the character
2018         out of the string constant.
2019
2020 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2021
2022         * mode-switching.c (optimize_mode_switching): Fix size
2023         allocated for bb_info[n_entities].
2024
2025 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2026
2027         * gcc.c (main): Correct type that is allocated for
2028         explicit_link_files.
2029
2030 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
2031
2032         * config/s390/s390.c (init_alignment_context): Set
2033         ALIAS_SET_MEMORY_BARRIER on the MEM.
2034         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
2035
2036 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2037
2038         PR middle-end/25933
2039         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2040         dom_bbs pointer.
2041         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2042         call to tpa_init.
2043
2044 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2045
2046         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2047         * regrename.c: Ditto.
2048         * tree-ssa-loop-im.c: Ditto.
2049         * tree-dump.c: Ditto.
2050         * tree-complex.c: Ditto.
2051         * genrecog.c: Ditto.
2052         * tree-ssa-threadupdate.c: Ditto.
2053         * tracer.c: Ditto.
2054         * java/class.c: Ditto.
2055         * java/jcf-parse.c: Ditto.
2056         * java/resource.c: Ditto.
2057         * java/except.c: Ditto.
2058         * java/jvspec.c: Ditto.
2059         * java/jcf-write.c: Ditto.
2060         * java/jcf-path.c: Ditto.
2061         * java/gjavah.c: Ditto.
2062         * java/zextract.c: Ditto.
2063         * java/jcf-io.c: Ditto.
2064         * java/jcf.h: Ditto.
2065         * java/buffer.c: Ditto.
2066         * java/lang.c: Ditto.
2067         * java/parse-scan.y: Ditto.
2068         * java/lex.c: Ditto.
2069         * java/lex.h: Ditto.
2070         * cfgloopmanip.c: Ditto.
2071         * postreload-gcse.c: Ditto.
2072         * tree-ssa-loop-manip.c: Ditto.
2073         * postreload.c: Ditto.
2074         * tree-ssa-loop-ch.c: Ditto.
2075         * loop.c: Ditto.
2076         * ipa-cp.c: Ditto.
2077         * cppspec.c: Ditto.
2078         * diagnostic.c: Ditto.
2079         * final.c: Ditto.
2080         * genoutput.c: Ditto.
2081         * gcc.c: Ditto.
2082         * cfghooks.c: Ditto.
2083         * cfgloopanal.c: Ditto.
2084         * objc/objc-act.c: Ditto.
2085         * gcov.c: Ditto.
2086         * genextract.c: Ditto.
2087         * genautomata.c: Ditto.
2088         * pretty-print.c: Ditto.
2089         * genemit.c: Ditto.
2090         * cgraphunit.c: Ditto.
2091         * flow.c: Ditto.
2092         * df-scan.c: Ditto.
2093         * haifa-sched.c: Ditto.
2094         * dominance.c: Ditto.
2095         * dbxout.c: Ditto.
2096         * tree-ssa-loop-ivopts.c: Ditto.
2097         * df-core.c: Ditto.
2098         * mode-switching.c: Ditto.
2099         * modulo-sched.c: Ditto.
2100         * graph.c: Ditto.
2101         * ipa-pure-const.c: Ditto.
2102         * cse.c: Ditto.
2103         * fix-header.c: Ditto.
2104         * web.c: Ditto.
2105         * tree-stdarg.c: Ditto.
2106         * ipa-utils.c: Ditto.
2107         * loop-init.c: Ditto.
2108         * ipa-inline.c: Ditto.
2109         * cfganal.c: Ditto.
2110         * global.c: Ditto.
2111         * alloc-pool.c: Ditto.
2112         * dwarf2out.c: Ditto.
2113         * opts.c: Ditto.
2114         * genattrtab.c: Ditto.
2115         * tree-ssa-loop-ivcanon.c: Ditto.
2116         * predict.c: Ditto.
2117         * timevar.c: Ditto.
2118         * lcm.c: Ditto.
2119         * fortran/gfortranspec.c: Ditto.
2120         * regmove.c: Ditto.
2121         * local-alloc.c: Ditto.
2122         * langhooks.c: Ditto.
2123         * function.c: Ditto.
2124         * tree-vectorizer.c: Ditto.
2125         * gcse.c: Ditto.
2126         * ipa-type-escape.c: Ditto.
2127         * alias.c: Ditto.
2128         * tree-if-conv.c: Ditto.
2129         * profile.c: Ditto.
2130         * ipa.c: Ditto.
2131         * tree-data-ref.c: Ditto.
2132         * loop-unroll.c: Ditto.
2133         * treelang/treetree.c: Ditto.
2134         * calls.c: Ditto.
2135         * bt-load.c: Ditto.
2136         * ggc-common.c: Ditto.
2137         * except.c: Ditto.
2138         * coverage.c: Ditto.
2139         * cselib.c: Ditto.
2140         * tree-cfgcleanup.c: Ditto.
2141         * tree-ssa-pre.c: Ditto.
2142         * cfgcleanup.c: Ditto.
2143         * loop-invariant.c: Ditto.
2144         * loop-iv.c: Ditto.
2145         * ipa-prop.c: Ditto.
2146         * print-tree.c: Ditto.
2147         * conflict.c: Ditto.
2148         * ggc-page.c: Ditto.
2149         * sched-deps.c: Ditto.
2150         * regclass.c: Ditto.
2151         * tree-object-size.c: Ditto.
2152         * combine.c: Ditto.
2153         * bb-reorder.c: Ditto.
2154         * resource.c: Ditto.
2155         * var-tracking.c: Ditto.
2156         * cfgloop.c: Ditto.
2157         * df-problems.c: Ditto.
2158         * reg-stack.c: Ditto.
2159         * tlink.c: Ditto.
2160         * gccspec.c: Ditto.
2161         * sched-rgn.c: Ditto.
2162         * tree-ssa-structalias.c: Ditto.
2163         * tree-ssa-reassoc.c: Ditto.
2164         * config/darwin-c.c: Ditto.
2165         * config/darwin.c: Ditto.
2166         * config/arm/arm.c: Ditto.
2167         * cfgrtl.c: Ditto.
2168         * collect2.c: Ditto.
2169         * reload1.c: Ditto.
2170
2171 2006-01-31  Nicolas Pitre  <nico@cam.org>
2172
2173         * arm.md (smaxsi3): Make aware of smax_m1.
2174         (smax_m1): New.
2175
2176 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2177
2178         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2179
2180 2006-01-31  Richard Guenther  <rguenther@suse.de>
2181
2182         * doc/invoke.texi (-msselibm): Document.
2183         * target.h (expand_library_builtin): New target hook.
2184         * builtins.c (expand_builtin): Use expand_library_builtin.
2185         (default_expand_library_builtin): New function.
2186         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2187         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2188         (link_gcc_math_spec): Declare.
2189         (static_specs): Add link_gcc_math_spec.
2190         * expr.h (default_expand_library_builtin): Declare.
2191         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2192         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
2193         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
2194         * config/i386/i386.opt (msselibm): New target option.
2195         * config/i386/i386.c (ix86_builtin_function_variants): New array.
2196         (ix86_init_sse_abi_builtins): New function.
2197         (ix86_expand_library_builtin): Likewise.
2198         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2199         (override_options): Handle error conditions wrt -msselibm.
2200         (ix86_builtins): Add function codes for SSE2 ABI builtins.
2201         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
2202         * doc/extend.texi (__builtin_sse2_*): Document new target specific
2203         builtins.
2204
2205 2006-01-31  Richard Guenther  <rguenther@suse.de>
2206         Paolo Bonzini  <bonzini@gnu.org>
2207
2208         * doc/install.texi (--disable-libgcc-math): Document.
2209
2210 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
2211
2212         * expr.h (expand_normal): new inline function.
2213         * builtins.c: use it, use EXPAND_NORMAL explicitely.
2214         * dojump.c: use it.
2215         * dwarf2out.c: use it.
2216         * expr.c: use it.
2217         * calls.c: use it.
2218         * expmed.c: use it.
2219         * except.c: use it.
2220         * config/sparc/sparc.c: use it.
2221         * config/i386/i386.c: use it.
2222         * config/rs6000/rs6000.c: use it.
2223         * config/arm/arm.c: use it.
2224         * config/mips/mips.c: use it.
2225         * stmt.c: use it, use EXPAND_NORMAL explicitely.
2226
2227 2006-01-30  Roger Sayle  <roger@eyesopen.com>
2228
2229         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
2230         argv to the appropriate type.
2231
2232 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
2233
2234         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
2235         unreachable code.
2236
2237 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
2238
2239         PR target/26018
2240         * config/s390/s390.c (struct machine_function): New flag
2241         decomposed_literal_pool_addresses_ok_p.
2242         (s390_reorg): Set it before final stage of literal pool transforms.
2243         (s390_decompose_address): Only accept displacements of the form
2244         (minus (label_ref ...) (label_ref ...)) if that flag is set.
2245
2246 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
2247
2248         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
2249         the comparison routine return.
2250
2251 2006-01-30  Michael Matz  <matz@suse.de>
2252
2253         * global.c (find_reg): Only evict for global regs.
2254         Take n_refs into account and dump more info.
2255
2256 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
2257
2258         PR target/14798:
2259         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
2260         (pragma_trap, pragma_nosave_low_regs): Likewise.
2261         (current_function_anonymous_args): Likewise.
2262         (sh_deferred_function_attributes): New variable.
2263         (sh_deferred_function_attributes_tail): Likewise.
2264         (print_operand): For '@', look up trap_exit attribute.
2265         (calc_live_regs): Look up trapa_handler attribute.  For trapa
2266         handlers, save/restore fpscr, but don't do any other
2267         interrupt-specific saves.
2268         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
2269         Fix check for partially saved registers to check for SHmedia.
2270         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
2271         (sh_output_function_epilogue): Don't clear any of the removed
2272         variables.
2273         (sh_insert_attributes): Don't check pragma_interrupt.
2274         Insert deferred attributes.  Check that interrupt attribute is
2275         present for other attributes that require its presence.
2276         (sh_attribute_table): Add new attributes trapa_handler and
2277         nosave_low_regs.
2278         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
2279         Don't check for pragma_interrupt.  Don't store argument.
2280         * sh.h (pragma_interrupt, sp_switch): Don't declare.
2281         (sh_deferred_function_attributes): Declare.
2282         (sh_deferred_function_attributes_tail): Likewise.
2283         * sh.md (sp_switch_1): Add operand.  Change generator caller.
2284         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
2285         (*return_i): Don't use when trap_exit attribute is in effect.
2286         (*return_trapa): New insn pattern.
2287         * sh-c.c: New file.
2288         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
2289         setting c_target_objs and cxx_target_objs.
2290         * t-sh: Add rule for sh-c.o.
2291
2292 2006-01-30  Richard Guenther  <rguenther@suse.de>
2293
2294         PR c++/23372
2295         * gimplify.c (gimplify_target_expr): Handle easy cases
2296         without creating a temporary.
2297
2298 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
2299
2300         * vec.h (safe_grow): Remove duplicated line.
2301
2302 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
2303
2304         PR 25874
2305         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
2306         (expand_omp): ... here.
2307         (expand_omp_parallel): Only remove barriers for combined
2308         parallel+workshare constructs.
2309
2310 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2311
2312         Revert
2313
2314         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
2315         * tree.c (build_qualified_type): Chain the new type to the original
2316         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
2317         a POINTER_TYPE or a REFERENCE_TYPE respectively.
2318         (build_pointer_type_for_mode): Only return unqualified types.
2319         (build_reference_type_for_mode): Likewise.
2320
2321 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
2322
2323         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
2324         * Makefile.in (CXX_COMPAT_WARN): Define.
2325         * configure: Regenerate.
2326
2327 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2328
2329         PR tree-opt/25911
2330         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
2331         to an if check.
2332
2333 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2334
2335         * toplev.c: Fix thinko.
2336
2337 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2338             Marcin Dalecki  <martin@dalecki.de>
2339
2340         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
2341         (push_srcloc): Use XNEW.
2342         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
2343
2344 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
2345
2346         * df-core.c (df_set_blocks): Deleted all variable.
2347
2348 2006-01-28  Ian Lance Taylor  <ian@airs.com>
2349
2350         * cgraphunit.c (cgraph_assemble_pending_functions): Call
2351         cgraph_output_pending_asms.
2352
2353 2006-01-28  Zack Weinberg  <zackw@panix.com>
2354
2355         * c.opt: Add -W(no-)overlength-strings.
2356         * doc/invoke.texi: Document it.
2357         * c-opts.c (c_common_handle_option): -pedantic implies
2358         -Woverlength-strings, if not explicitly disabled already.
2359         (c_common_post_options): -Woverlength-strings defaults to off, and
2360         is always off for C++.
2361         * c-common.c (fix_string_type): Issue warning about strings longer
2362         than is portable only if warn_overlength_strings.  Rearrange code
2363         a little for clarity.
2364         * configure.in: Check for -Wno-overlength-strings as well before
2365         enabling -pedantic in stage 1.
2366         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
2367         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
2368
2369         * genconditions.c (write_header, write_one_condition)
2370         (write_conditions, write_writer): Consolidate very long strings
2371         that were broken up to fit in C89 portable limit.  Don't use
2372         printf when fputs will do.
2373
2374 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
2375
2376         * combine.c (simplify_comparison <AND>): Check
2377         TRULY_NOOP_TRUNCATION before start using a subreg.
2378
2379         * config/mips/mips.md (*branch_zero<mode>,
2380         *branch_zero<mode>_inverted, *branch_equality<mode>,
2381         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
2382         Remove mode check from comparisons.
2383
2384 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
2385
2386         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
2387
2388 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2389
2390         * expmed.c (const_mult_add_overflow_p): Remove.
2391         * expr.h: Remove the prototype for const_mult_add_overflow_p.
2392
2393         * recog.c (validate_replace_rtx_subexp): Remove.
2394         * recog.h: Remove the prototype for
2395         validate_replace_rtx_subexp.
2396
2397         * integrate.h: Remove the prototype for
2398         copy_decl_for_inlining.
2399         * rtl.h: Remove the prototype for mark_constant_function.
2400         * tree-vectorizer.h: Remove the prototype for
2401         vect_strip_conversion.
2402
2403         * modulo-sched.c (create_partial_schedule,
2404         free_partial_schedule, reset_partial_schedule): Make them
2405         static.
2406
2407         * hooks.c (hook_bool_rtx_int_false): Remove.
2408         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
2409
2410 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
2411
2412         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2413         and -mlong-double-128 are incompatible.
2414         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
2415         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
2416         (TARGET_LIBGCC2_CFLAGS): Define.
2417         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
2418         (TARGET_LIBGCC2_CFLAGS): Same.
2419         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
2420
2421 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2422
2423         PR c/19606.
2424         * c-typeck.c (build_binary_op): Perform implicit casts of
2425         operands before shortening them.
2426
2427         * cfgloopmanip.c (split_loop_bb): Remove.
2428         * cfgloop.h: Remove the prototype for split_loop_bb.
2429
2430         * cfgloop.c (flow_loop_outside_edge_p): Remove.
2431         * cfgloop.h: Remove the prototype for
2432         flow_loop_outside_edge_p.
2433
2434         * emit-rtl.c (init_virtual_regs): Make it static.
2435         * function.h: Remove the prototype for init_virtual_regs.
2436
2437         * recog.c (peephole2_optimize): Make it static.
2438         * recog.h: Remove the prototype for peephole2_optimize.
2439
2440 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2441
2442         * df-scan.c (df_record_entry_block_defs): Check if
2443         INCOMING_RETURN_ADDR_RTX is defined.
2444
2445 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
2446             Kenneth Zadeck <zadeck@naturalbridge.com>
2447
2448         PR rtl-optimization/24762
2449         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2450         * targhooks.c (hook_void_bitmap): New hook prototype.
2451         * targhoohs.h (hook_void_bitmap): Ditto.
2452         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
2453         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
2454         * target.h (live_on_entry): New function pointer.
2455         * df-scan.c (df_all_hard_regs): Removed.
2456         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
2457         (df_scan_free_internal): Added df->entry_block_defs.
2458         (df_scan_alloc): Ditto.
2459         (df_scan_dump): Ditto.
2460         (df_uses_record): Plumbed flag field properly thru calls.
2461         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
2462         This part fixes PR24762.
2463         (df_bb_refs_record): Added code to make the frame and arg
2464         pointers live in EH blocks.
2465         (df_refs_record): Added call to df_record_entry_block_defs.
2466         (df_record_entry_block_defs): New function.
2467         * df-core.c: Added comments to describe new artifical defs.
2468         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
2469         (entry_block_defs): New field in struct df.
2470         (df_all_hard_regs): Deleted.
2471         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2472         * df-problems.c (df_ru_bb_local_compute_process_def):
2473         Added code to handle artifical defs in the entry to a function.
2474         (df_ru_bb_local_compute): Ditto.
2475         (df_rd_bb_local_compute_process_def):  Ditto.
2476         (df_rd_bb_local_compute): Ditto.
2477         (df_lr_bb_local_compute): Ditto.
2478         (df_ur_bb_local_compute): Ditto.
2479         (df_urec_bb_local_compute):  Ditto.
2480         (df_chain_create_bb):  Ditto.
2481         (df_ur_local_finalize): Removed entry.
2482         (df_urec_init): Ditto.
2483         (df_urec_local_finalize): Ditto.
2484         (df_ri_bb_compute): Added detection of last use of pseudos.
2485         * Makefile.in (df-scan.o): Updated dependencies.
2486         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
2487         * config/mips/mips.c (mips_set_live_on_entry): Added.
2488         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
2489         for target hook.
2490         * dce.c (marked_insn_p): Added code to handle artifical defs.
2491
2492 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2493
2494         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
2495         intrinsic.
2496         (_mm_cvtsi128_si64): Likewise.
2497         (_mm_cvtsd_si64): Likewise.
2498         (_mm_cvttsd_si64): Likewise.
2499         (_mm_cvtsi64_sd): Likewise.
2500         (_mm_cvtsi64_si128): Likewise.
2501         * config/i386/mmintrin.h (_m_from_int64): Likewise.
2502         (_mm_cvtsi64_m64): Likewise.
2503         (_m_to_int64): Likewise.
2504         (_mm_cvtm64_si64): Likewise.
2505         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
2506         (_mm_cvttss_si64): Likewise.
2507         (_mm_cvtsi64_ss): Likewise.
2508         (_mm_cvtss_f32): Likewise.
2509
2510 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
2511
2512         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
2513         for pragma redefine_extname.
2514
2515 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
2516
2517         PR target/25864
2518         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
2519         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
2520         -mno-minimal-toc to previous content.
2521         (bispecs): Remove goal.
2522         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
2523         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
2524         compatibility aliases on powerpc-*-*gnu*.
2525         * config/rs6000/libgcc-ppc-glibc.ver: New file.
2526         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
2527         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
2528         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
2529         (ldblspecs): New goal.
2530         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
2531         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
2532         _df_to_tf.
2533         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
2534         L_sf_to_tf or L_df_to_tf is defined.
2535
2536 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
2537             Alan Modra  <amodra@bigpond.net.au>
2538
2539         PR target/25864
2540         * config/rs6000/linux.h (POWERPC_LINUX): Define.
2541         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
2542         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
2543         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
2544         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
2545         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
2546         (rs6000_override_options): Initialize rs6000_ieeequad.
2547         Initialize TFmode format to ibm_extended_format if not
2548         TARGET_IEEEQUAD.
2549         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
2550         ieeelongdouble.
2551         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
2552         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
2553         (function_arg_advance): IBM long double passed in two FPRs, not
2554         split.
2555         (function_arg): IBM long double passed in FPRs.
2556         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
2557         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
2558         Only multireg GPR aligned.
2559         (rs6000_init_libfuncs): Enable IBM long double functions if not
2560         IEEEQUAD.
2561         (rs6000_generate_compare): Use IBM long double compare if not
2562         TARGET_IEEEQUAD.
2563         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
2564         (TARGET_IEEEQUAD): Define.
2565         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
2566         not TARGET_IEEEQUAD.
2567         * config/rs6000/rs6000.md: Enable TFmode patterns if
2568         !TARGET_IEEEQUAD.
2569         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
2570         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2571         and -mlong-double-128 are incompatible.
2572         * doc/invoke.texi (-mabi): Collect options together.  Add
2573         ibmlongdouble and ieeelongdouble.
2574
2575 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
2576
2577         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
2578         opaque type.
2579         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
2580         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
2581         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
2582         * rtl.h (rtunion_def): Remove rt_ptr.
2583         (X0PTR): Delete.
2584         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
2585         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
2586         * config/i386/winnt.c (i386_pe_mark_dllexport)
2587         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
2588
2589 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
2590
2591         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
2592
2593 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
2594
2595         PR other/24829
2596         PR target/24831
2597         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
2598         pthread_key_delete.  From John David Anglin.  gthrw-ify
2599         pthread_getunique_np only if it it's not a macro.  Delete
2600         UNUSED macro.
2601         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
2602         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
2603         __gthread_objc_condition_signal, __gthread_key_delete): Add
2604         "__attribute__ ((__unused__))" to unused arguments.
2605         (__gthread_recursive_mutex_init_function): Add missing return.
2606         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
2607         gthr-posix95.h: Use macro-based approach for name redirection
2608         on targets missing weakref.
2609
2610 2006-01-26  Zack Weinberg  <zackw@panix.com>
2611
2612         * genconditions.c (write_header): In generated code, #ifdef out
2613         all includes and fake declarations, except includes of bconfig.h
2614         and system.h, unless GCC_VERSION >= 3001.  Do not include
2615         gensupport.h in any case.
2616         (write_conditions): Generate a definition of struct c_test.  Add
2617         a comment to the generated #endif.
2618         (write_one_condition): Escape backslashes in string too.
2619         (write_writer): Generated code must escape backslashes and quote
2620         marks (but not newlines) in the strings it writes.
2621         * Makefile.in (build/gencondmd.o): Update dependencies.
2622
2623 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2624
2625         PR target/25961
2626         * Makefile.in (insn-automata.o): Add header file dependencies.
2627         * genautomata.c: Add includes.
2628
2629 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2630
2631         PR target/25961
2632         * Makefile.in (insn-automata.o): Add -Wno-error flag.
2633
2634 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2635
2636         * configure.ac: Expect target tools paths to be passed from the toplevel
2637         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
2638         AS_SET_VAR_IF.
2639         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
2640
2641 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
2642
2643         PR c/25892
2644         * c.opt (Wpointer-sign): Init to -1.
2645         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
2646         OPT_pedantic, to 0 otherwise.
2647         * doc/invoke.texi: Update.
2648
2649 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2650
2651         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
2652         constants provided by 80387 instructions in the destination mode.
2653
2654 2006-01-26  Richard Guenther  <rguenther@suse.de>
2655             Andrew Pinski  <pinskia@physics.uc.edu>
2656
2657         PR tree-opt/21470
2658         partial PR tree-opt/17064
2659         * tree-ssa-structalias.c (intra_create_variable_infos):
2660         Create heap variables for incoming parameters if
2661         flag_argument_noalias > 1.
2662         (find_what_p_points_to): Look through default defs of
2663         parameter decls.
2664
2665 2006-01-26  Jeff Law  <law@redhat.com>
2666
2667         PR ada/25900
2668         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
2669         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
2670         within the VR_RANGE, use the VR_RANGE as the result, not the
2671         VR_ANTI_RANGE.
2672         (adjust_range_with_scev): Reject ranges from SCEV which are out of
2673         bounds for the type.
2674
2675 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
2676
2677         * tree-ssa-alias.c (maybe_create_global_var): Change
2678         subvar walking to an assertion that we don't have subvar'd variables.
2679
2680 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
2681
2682         PR C/25861
2683         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
2684         Use a new variable, inner.  PARM_DECLs are always non-weak.
2685
2686 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
2687
2688         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
2689         --disable-checking.
2690
2691 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
2692
2693         * config/mips/mips.md (*clear_upper32): New combiner pattern.
2694
2695 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
2696
2697         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
2698         (smax_insn, smin_insn, smax_0, smin_0): New.
2699
2700 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
2701
2702         PR target/25947
2703         * config/cris/cris.c (cris_order_for_addsi3): New function.
2704         * config/cris/cris-protos.h: Prototype it.
2705         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
2706         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
2707         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
2708         (split for "op.S1 [rx=rx+i],ry (swapped)")
2709         (split for "op(s|u).S1 [rx=rx+i],ry")
2710         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
2711         Apply cris_order_for_addsi3 when generating addsi3 insns.
2712
2713 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2714
2715         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
2716         (TREE_BLOCK): Add call to EXPR_CHECK.
2717
2718 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2719
2720         PR 25886
2721         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
2722         * tree-pretty-print.c (dump_omp_clause): Extract from ...
2723         (dump_omp_clauses): ... here.
2724         (dump_generic_node): Handle OMP_CLAUSE.
2725         * tree.c (omp_clause_num_ops): New.
2726         (omp_clause_code_name): New.
2727         (tree_code_size): Handle OMP_CLAUSE.
2728         (tree_size): Likewise.
2729         (make_node): Document handling of OMP_CLAUSE.
2730         (tree_node_structure): Handle OMP_CLAUSE.
2731         (omp_clause_check_failed): New.
2732         (omp_clause_range_check_failed): New.
2733         (omp_clause_operand_check_failed): New.
2734         (build_omp_clause): New.
2735         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
2736         * tree.h (enum omp_clause_code): Declare.
2737         (OMP_CLAUSE_SUBCODE_CHECK): Define.
2738         (OMP_CLAUSE_RANGE_CHECK): Define.
2739         (OMP_CLAUSE_ELT_CHECK): Define.
2740         (omp_clause_check_failed): Declare.
2741         (omp_clause_operand_check_failed): Declare.
2742         (omp_clause_range_check_failed): Declare.
2743         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
2744         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
2745         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
2746         (OMP_CLAUSE_LASTPRIVATE): Likewise.
2747         (OMP_CLAUSE_IF_EXPR): Likewise.
2748         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
2749         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
2750         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
2751         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
2752         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
2753         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
2754         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
2755         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
2756         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
2757         (OMP_CLAUSE_CODE): Define.
2758         (OMP_CLAUSE_SET_CODE): Define.
2759         (OMP_CLAUSE_CODE): Define.
2760         (OMP_CLAUSE_OPERAND): Define.
2761         (struct tree_omp_clause): Declare.
2762         (union tree_node): Add field 'omp_clause'.
2763         * treestruct.def (TS_OMP_CLAUSE): Define.
2764         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
2765         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
2766         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
2767         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
2768         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
2769         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
2770         (OMP_CLAUSE): Define.
2771         * print-tree.c (print_node): Handle OMP_CLAUSE.
2772         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
2773         * c-typeck.c: Likewise.
2774         * gimplify.c: Likewise.
2775         * c-omp.c: Likewise.
2776         * tree-nested.c: Likewise.
2777         * tree-inline.c: Likewise.
2778         * c-parser.c: Likewise.
2779         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
2780         clauses.
2781
2782 2006-01-25  Roger Sayle  <roger@eyesopen.com>
2783
2784         PR rtl-optimization/25703
2785         * combine.c (try_combine): Handle zero_extract and strict_low_part
2786         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
2787
2788 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
2789
2790         * global.c: Fix comment typos.
2791
2792 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
2793
2794         PR target/25758
2795         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
2796         Use output_addr_const instead of assemble_name.
2797
2798 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
2799
2800         * Makefile.in (sched-vis.o): Update dependencies.
2801         * haifa-sched.c (sched_finish): Clear current_sched_info.
2802         * cfg.c (dump_bb_info): New, split from dump_flow_info.
2803         (dump_flow_info): Call it.
2804         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
2805         a slim RTL dump.
2806         * basic-block.h (dump_bb_info): Declare.
2807         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
2808         option, and apply options only for dump files whose TDF_RTL,
2809         TDF_TREE, or TDF_IPA bits match.
2810         * rtl.h: Declare new functions exported from sched-vis.c.
2811         * sched-vis.c: Enable also if scheduling is not used.
2812         (print_value): Print the mode of registers if not inside scheduling.
2813         (print_insn): Make it work outside the scheduler.  Beautify the output
2814         a bit.
2815         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
2816
2817 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2818
2819         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
2820         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
2821         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
2822         depending on the value of CONSTANT_POOL_ADDRESS_P.
2823         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
2824         SYMBOL_REF_DECL.
2825         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
2826         rather than SYMBOL_REF_DECL.
2827         (rtx_constant_pool): Remove const_rtx_sym_htab.
2828         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
2829         (init_varasm_status): Don't initialize const_rtx_sym_htab.
2830         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
2831         Remove handling of const_rtx_sym_htab.
2832         (find_pool_constant): Delete.
2833         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
2834         rather than find_pool_constant.
2835         (get_pool_constant_for_function): Delete.
2836         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
2837         find_pool_constant.
2838         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
2839         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
2840         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
2841         (SYMBOL_REF_CONSTANT): New macro.
2842         (get_pool_constant_for_function): Delete.
2843         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
2844         rather than SYMBOL_REF_DECL.
2845         (i386_pe_mark_dllimport): Likewise.
2846         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
2847         rather than SYMBOL_REF_DECL.
2848         * config/darwin.c (machopic_indirect_data_reference): Likewise.
2849         (machopic_indirect_call_target): Likewise.
2850
2851 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
2852
2853         * flow.c (delete_noop_moves): Add missing EOL to dump message.
2854
2855 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2856
2857         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
2858
2859 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
2860
2861         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
2862
2863 2006-01-24  David Daney  <ddaney@avtrex.com>
2864
2865         PR java/25816
2866         * configure.ac (enable_tls): New enable option.
2867         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
2868         * configure: Regenerate.
2869         * doc/install.texi (--enable-tls): Document new option.
2870         (--disable-tls): Ditto.
2871
2872 2006-01-24  Richard Henderson  <rth@redehat.com>
2873
2874         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
2875         * alias.c (true_dependence): Respect it.
2876         (canon_true_dependence, write_dependence_p): Likewise.
2877         * builtins.c (get_builtin_sync_mem): Set it.
2878
2879 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
2880
2881         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
2882         efficient way.
2883
2884 2006-01-24  DJ Delorie  <dj@redhat.com>
2885
2886         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2887         for storing constants in single-bit bitfields.
2888
2889 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2890
2891         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2892
2893 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2894
2895         PR tree-opt/25860
2896         * tree-ssa-pre.c (phi_translate): Return NULL
2897         for AGGREGATE_TYPE's.
2898
2899 2006-01-24  Zack Weinberg  <zackw@panix.com>
2900
2901         * genautomata.c (process_state_for_insn_equiv_partition):
2902         Use xcalloc for insn_arcs_array.
2903         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2904         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2905
2906 2006-01-24  Richard Henderson  <rth@redhat.com>
2907
2908         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2909         update all callers.
2910
2911 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2912
2913         PR rtl-optimization/25890
2914         PR rtl-optimization/25905
2915         * combine.c (expand_compound_operation, expand_field_assignment):
2916         Fail if the bitfield's final position is out of bounds.
2917
2918 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2919
2920         PR middle-end/25930
2921         * cgraphunit.c (cgraph_output_in_order): Don't clear
2922         cgraph_asm_nodes until after asm strings have been output.
2923
2924 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2925
2926         * fix-header.c (read_scan_file): Add new parameter imultilib when
2927         calling register_include_chains.
2928
2929 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2930
2931         * omp-low.c: Update documentation.
2932
2933 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2934             Daniel Berlin  <dberlin@dberlin.org>
2935
2936         PR tree-opt/25315
2937         PR tree-opt/25857
2938         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2939         return from the function.
2940
2941 2006-01-22  Zack Weinberg  <zackw@panix.com>
2942
2943         * rtl.def (match_code): Add second argument.
2944         * genpreds.c (write_extract_subexp): New function.
2945         (write_match_code): Add path argument.  Use write_extract_subexp.
2946         (write_predicate_expr): Pass path to write_match_code.
2947         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2948         not perform a mode test.
2949         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2950         a subexpression does not constrain the top-level code set.
2951         * read-rtl.c (read_rtx_variadic): New function.
2952         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2953         * doc/md.texi: Document new notation.
2954         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2955         (cmpsi_operand): ... here, using new notation.
2956
2957 2006-01-22  Zack Weinberg  <zackw@panix.com>
2958
2959         * varray.c: Remove GENERATOR_FILE #ifdefs.
2960
2961 2006-01-22  Zack Weinberg  <zackw@panix.com>
2962
2963         * genautomata.c (output_reserved_units_table): Emit nothing if
2964         description->query_units_num is zero.  Remove extra blank line.
2965         (output_cpu_unit_reservation_p): Short circuit
2966         if description->query_units_num is zero.
2967
2968 2006-01-22  Zack Weinberg  <zackw@panix.com>
2969
2970         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2971         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2972         nor any of the random handful of variables that used to be necessary
2973         when this program was linked with rtlanal.o.  Prune set of forward
2974         function declarations.
2975         (struct attr_desc): Remove static_p field.
2976         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2977         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2978         (attr_string): Do not read the character one past the length of
2979         the string.
2980         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2981         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2982         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2983         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2984         (make_automaton_attrs): New.
2985         (main): Do not call into genautomata.  Call local gen_bypass
2986         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2987         Remove special case for insn_alts.
2988         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2989         varray.h (leftover from previous change).  Prune set of forward
2990         function declarations.  Remove state_alts fields from all
2991         structures.  Remove state_alts_table from struct automaton.
2992         Make everything except main static.  Do not maintain num_dfa_decls.
2993         Do not maintain state_alts fields of various structures.
2994         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2995         (add_arc): Remove state_alts argument.  All callers updated.
2996         (output_reserved_units_table): Emit #ifdef here...
2997         (output_tables): ...not here.  Don't generate state_alts tables.
2998         (expand_automata): Don't generate attributes.
2999         (write_automata): Don't generate state_alts functions.
3000         (main): New function.
3001         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
3002         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
3003         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
3004         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
3005         (BYPASS_P_FUNC_NAME, output_state_alts_table)
3006         (output_automata_list_state_alts_code, output_internal_state_alts_func)
3007         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
3008         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
3009         Delete.
3010         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
3011         * genattrtab.h: Delete file.
3012         * Makefile.in (OBJS-common): Add insn-automata.o.
3013         (insn-automata.o): New rule.
3014         (simple_generated_c): Add insn-automata.c.
3015         (build/genattrtab.o, build/genautomata.o): Update dependencies.
3016         (genprogmd): Add automata.
3017         (build/genattrtab): Needs no extra objects nor libraries.
3018         (build/genautomata): Needs build/vec.o and -lm.
3019
3020 2006-01-22  Zack Weinberg  <zackw@panix.com>
3021
3022         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
3023         (output_dfa_max_issue_rate, locked_states_num): Delete.
3024         (struct automaton): Add locked_states field.
3025         (output_dead_lock_vect): Save number of locked states in
3026         automaton->locked_states.  If it is zero, don't print anything.
3027         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
3028         (output_internal_dead_lock_func): Only test the dead_lock_vect
3029         for automata that have locked states.
3030         (output_statistics): Always print the number of locked states for
3031         each automaton.  Calculate total number of locked states here.
3032         (write_automata): Don't call output_dfa_max_issue_rate.
3033         * genattrtab.c: Define length_unit_log as a const variable.
3034         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
3035         max_insn_queue_index const.
3036         * final.c (length_unit_log): Declare const.
3037         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
3038
3039 2006-01-22  Zack Weinberg  <zackw@panix.com>
3040
3041         * genautomata.c:  Include vec.h, not varray.h.
3042         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
3043         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
3044         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
3045         VEC_* macros operating on appropriately typed vectors, or to
3046         malloced arrays when the size is known in advance.  Const-ify
3047         many char* variables and function arguments.  No functional changes.
3048         * Makefile.in (build/varray.o): Delete rule.
3049         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3050         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3051
3052 2006-01-22  Zack Weinberg  <zackw@panix.com>
3053
3054         * gensupport.c: Define get_insn_name and record_insn_name here.
3055         (read_md_rtx): Call record_insn_name as appropriate.
3056         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3057         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3058         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3059         record_insn_name.
3060         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3061         (BUILD_VARRAY): Delete.
3062         (genprognormal): Rename genprogmd.  Fold in all programs from
3063         genprognoprint; also attrtab.
3064         (build/genattrtab): Just mention genautomata.o and varray.o.
3065         Reorganize a bit, add comments to make the categories clearer.
3066
3067 2006-01-22  Zack Weinberg  <zackw@panix.com>
3068
3069         * genconditions.c (condition_table, add_condition): Delete.
3070         (write_conditions): Don't emit n_insn_conditions nor
3071         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3072         inside the table, with no #else clause ...
3073         (write_header): ...not here.
3074         (write_writer): New function.
3075         (main): Don't initialize condition_table.  Use add_c_test.
3076         Call write_writer.
3077         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3078         files on the command line.
3079         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3080         Return -1 if there is no entry in the table, don't abort.
3081         (add_c_test, traverse_c_tests): New functions.
3082         * gensupport.h (insn_elision_unavailable, insn_conditions)
3083         (n_insn_conditions): Delete declarations.
3084         (add_c_test, traverse_c_tests): Declare.
3085         * read-rtl.c: Include gensupport.h.
3086         (read_conditions): New function.
3087         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3088         (read_rtx_1): If we get EOF when we were looking for an initial
3089         open paren, return 0.  Call read_conditions when appropriate.
3090         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3091         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3092         or change them to build/gencondmd.o, as appropriate.  Remove
3093         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3094         from $(simple_generated_c).  For all files remaining in those
3095         two lists, add insn-conditions.md to the generator command line.
3096         Give insn-constants.h/s-constants their own rules.  Add rules
3097         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3098         (build/read-rtl.o): Depend on gensupport.h.
3099         (genprognormal): Include preds.
3100         (genprogearly): Rename genprognoprint; only difference is now that
3101         they don't link with $(BUILD_PRINT).
3102         * dummy-conditions.c: Delete.
3103
3104 2006-01-22  Zack Weinberg  <zackw@panix.com>
3105
3106         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3107         Declare vectors of int, char, and locstr.
3108         (locstr): New typedef.
3109         (struct extraction): Make all array fields into bare pointers.
3110         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3111         (insn_code_number): Delete.
3112         (accum_extract): New struct.
3113         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3114         (gen_insn): Take insn_code_number as an argument.  Use an
3115         accum_extract structure instead of loading data directly into
3116         a struct extraction, and having to know how big it might get.
3117         (walk_rtx): Operate entirely on an accum_extract structure.
3118         (print_path): Avoid unnecessary use of printf.
3119         (print_header): New function, split out of main.  Distinguish
3120         more carefully between an unrecognizable insn and an insn that
3121         has the code number of a define_expand.
3122         (main): Pass insn_code_number to gen_insn.  Call print_header
3123         only after parsing.  Avoid unnecessary use of printf.
3124         * Makefile.in (build/vec.o): New rule.
3125         (build/genextract): Depend on build/vec.o.
3126         (build/genextract.o): Don't depend on insn-config.h.
3127
3128 2006-01-22  Zack Weinberg  <zackw@panix.com>
3129
3130         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3131         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3132         practical.  Eliminate per-generator-program link rules.
3133
3134 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3135
3136         PR middle-end/24437
3137         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3138         with a call expr to ...
3139         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3140
3141 2006-01-23  Richard Guenther  <rguenther@suse.de>
3142
3143         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3144         before make_edge with conditional EDGE_TRUE_VALUE.
3145
3146 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3147         Jan Hubicka  <jh@suse.cz>
3148         Richard Guenther  <rguenther@suse.de>
3149
3150         PR rtl-optimization/25654
3151         * cfgexpand.c (aggregate_contains_union_type): New function.
3152         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3153         for structure variables that contain a union type.
3154
3155 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3156
3157         * gengtype.c (new_structure): Return the structure.
3158         (create_option): Add an extra "next" argument.
3159         (create_field): New function.
3160         (adjust_field_rtx_def): Use create_option and create_field.
3161         Remove a now-unnecessary call to find_structure.
3162         (adjust_field_tree_def): Likewise.
3163         (note_yacc_type): Remove an unnecessary call to find_structure.
3164         * gengtype.h (new_structure): Return the structure.
3165         (create_option): Add an extra argument.
3166         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3167         (option): Adjust calls to create_option.
3168
3169 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3170
3171         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3172
3173 2006-01-22  Paul Brook  <paul@codesourcery.com>
3174         Peter Barada  <peter@the-baradas.com>
3175
3176         * config/m68k/m68k.md: Add Coldfire FPU support.
3177         Define FP mode macro and associated attributes.
3178         Use it for float mode patterns.
3179         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3180         (LIBCALL_VALUE): Use m68k_libcall_value.
3181         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3182         (m68k_function_value): Ditto.
3183         (emit_move_sequence): Ditto.
3184         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3185         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3186         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3187         (MULTILIB_EXCEPTIONS): Ditto.
3188         * config/m68k/m68k.opt: Add mcfv4e.
3189         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3190         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3191         (m68k_output_function_prologue): Save ColdFire FPU registers.
3192         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
3193         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
3194         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
3195         ColdFire FPU registers.
3196         (m68k_libcall_value, m68k_function_value): New functions.
3197         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
3198         (LIBCALL_VALUE): Use m68k_libcall_value.
3199         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
3200         (MASK_COLDFIRE): Add MASK_CFV4E.
3201         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
3202         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
3203         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
3204         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
3205         (GO_IF_LEGITIMATE_ADDRESS): Use it.
3206         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
3207         * doc/invoke.tex: Document -mcfv4e on m68k.
3208
3209 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
3210
3211         * doc/contribute.texi: Change CVS to SVN and update the corresponding
3212         URL.
3213
3214 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3215
3216         PR c++/16190
3217         * c-opts.c (c_common_handle_option): Don't include
3218         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
3219         * doc/invoke.texi (C++ Dialect Options): Document that
3220         -Wnon-virtual-dtor is no longer included in -Wall.
3221
3222 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
3223
3224         * gcov.c (print_version), gcov-dump.c (print_version),
3225         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
3226         dates.
3227
3228 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
3229
3230         * df-scan.c (problem_SCAN): Added NULL reset function.
3231         (df_scan_reset_blocks): Added code to call reset block function
3232         (df_bb_refs_delete) Fixed comment.
3233         (df_insn_refs_delete): Made tolerant of deleting non existent info
3234         for dataflow problems that need to be reset.
3235         * df-core.c (df_set_blocks): Ditto.
3236         * df.h (struct df_problem): Added reset_fun.
3237         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
3238         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
3239         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
3240         functions to clear out all references to def-use or use-def chains.
3241
3242 2006-01-21  Ben Elliston  <bje@au.ibm.com>
3243
3244         * varasm.c (assemble_real): Initialise data array.
3245
3246 2006-01-20  Paul Brook  <paul@codesourcery.com>
3247
3248         Merge from csl-arm-branch.
3249         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
3250         * config/arm/arm.md (movdi): Force operands[1] to a register
3251         if we have a non-register source.
3252         (*arm_movdi, *movdf_soft_insn): Require that one of the
3253         operands be a register.
3254         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
3255         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
3256
3257 2006-01-20  DJ Delorie  <dj@redhat.com>
3258
3259         * varasm.c (initialize_constant_valid_p): Allow pointers
3260         initialized from integer constants of lesser precision.
3261         (output_constant): Allow non-int-sized pointer modes to be
3262         initialized from integer constants.
3263
3264 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
3265
3266         PR libstdc++/25524
3267         * cppdefault.h (struct default_include): Add multilib flag.
3268         * cppdefault.c (cpp_include_defaults): Set it.
3269         * c.opt (-imultilib): New option.
3270         * c-opts.c (imultilib): New.
3271         (c_common_handle_option): Handle -imultilib.
3272         (c_common_post_options): Likewise.
3273         * c-incpath.c (add_standard_paths, register_include_chains):
3274         Likewise.
3275         * c-incpath.h (register_include_chains): Add extra parameter.
3276         * gcc.c (do_spec_1): Generate -imultilib option.
3277         (The Specs Language): Update %I description.
3278         (process_command): Update copyright notice.
3279         * doc/cppopts.texi (-imultilib): Document.
3280         * doc/invoke.texi (-imultilib): Include in option summary.
3281         (%I): Update specs documentation.
3282
3283 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3284
3285         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
3286
3287 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
3288
3289         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
3290         label numbers.
3291
3292 2006-01-20  Richard Guenther  <rguenther@suse.de>
3293         Steven Bosscher <stevenb.gcc@gmail.com>
3294
3295         PR rtl-optimization/24626
3296         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
3297         EDGE_TRUE_VALUE if in RTL mode.
3298
3299         Revert
3300         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
3301         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
3302
3303 2006-01-20  Dirk Mueller  <dmueller@suse.com>
3304
3305         PR c++/5520
3306         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
3307         instead of a special NOP marker.
3308         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
3309         NOP marker handling.
3310         * c-common.h (empty_body_warning): Add forward declaration.
3311         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
3312         Now uses IS_EMPTY_STMT() instead of special NOP markers.
3313
3314 2006-01-20  Paul Brook  <paul@codesourcery.com>
3315
3316         * Makefile.in (lang_checks): Keep going if mkdir fails.
3317
3318 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3319
3320         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
3321         be able to clean out basic block when not necessary.
3322         (df_scan_free): Fixed to properly delete information if df is
3323         unused before calling df_finish.
3324         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
3325         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
3326         or comment typos.
3327         (df_bb_refs_delete): New function.
3328         (df_refs_delete): Moved per block code to df_bb_refs_delete.
3329         * df-core.c (df_set_blocks): Added code to properly clean out
3330         unused blocks if they are not part of the blocks to consider.
3331         Added additional null check.
3332         (df_compact_blocks): Added basic block parameter to free_bb_fun to
3333         be able to clean out basic block when not necessary
3334         * df.h (df_free_bb_function): Ditto.
3335         (df_bb_refs_delete): New function.
3336         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
3337         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
3338         basic block parameter to be able to clean out basic block when not
3339         necessary.
3340         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
3341         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
3342         Fixed to properly delete information if df is unused before
3343         calling df_finish.
3344
3345 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3346
3347         PR rtl-optimization/25799
3348         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
3349         Corrected confluence operator to remove bits from op2 before oring
3350         with op1 rather than removing bits from op1.
3351         (df_ru_transfer_function): Corrected test on wrong bitmap which
3352         caused infinite loop.  Both of these problems were introduced in
3353         the dataflow rewrite.
3354
3355 2006-01-19  DJ Delorie  <dj@redhat.com>
3356
3357         * reload1.c (find_reload_regs): Note the details of reload
3358         failures in the dump file.
3359         (spill_failure): Likewise.
3360
3361 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3362
3363         * loop-iv.c: Include df.h and hashtab.h.
3364         (enum iv_grd_result): New enum.
3365         (DF_REF_IV, DF_REF_IV_SET): New macros.
3366         (struct biv_entry): New.
3367         (df, bivs): New global variables.
3368         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
3369         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
3370         Removed.
3371         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
3372         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
3373         analyzed_for_bivness_p, record_biv): New functions.
3374         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
3375         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
3376         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
3377         UD chains.
3378         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
3379         analysed.
3380         (iv_number_of_iterations): Use new interface to iv analysis.
3381         * loop-unroll.c: Do not include varray.h.
3382         (analyze_iv_to_split_insn): Use new interface to iv
3383         analysis.
3384         * loop-unswitch.c (may_unswitch_on): Ditto.
3385         * df.c (df_bitmaps_free): Only work for bbs for that structures are
3386         allocated.
3387         (df_bb_modify): Realloc tables to the new index.
3388         (df_find_use): New function.
3389         * df.h (df_find_use): Declare.
3390         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
3391         outmode.
3392         * cfgloop.h (struct rtx_iv): Remove analysed field.
3393         (iv_get_reaching_def): Removed.
3394         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
3395         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
3396         (loop-iv.o): Add df.h and hashtab.h dependency.
3397         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
3398
3399 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
3400
3401         PR target/25668
3402         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
3403         Double TFmode.
3404         (__floatundisf, __floatundidf): Likewise.
3405         * libgcc2.h (IS_IBM_EXTENDED): Define.
3406
3407 2006-01-19  DJ Delorie  <dj@redhat.com>
3408
3409         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
3410
3411 2006-01-19  Paul Brook  <paul@codesourcery.com>
3412
3413         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
3414         as nothrow when unwinding tables are disabled.
3415
3416 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3417
3418         PR testsuite/25171
3419         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
3420         of bit-field" when in system header.
3421
3422 2006-01-19  DJ Delorie  <dj@redhat.com>
3423
3424         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
3425         the 16 bit shift limit of the m16c.
3426
3427 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
3428
3429         PR target/22099
3430         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
3431         * config/i386/i386.c (output_set_got): Output the label if we have one
3432         for the TARGET_DEEP_BRANCH_PREDICTION case.
3433
3434 2006-01-19  Jan Hubicka  <jh@suse.cz>
3435             H.J. Lu  <hongjiu.lu@intel.com>
3436             Evandro Menezes <evandro.menezes@amd.com>
3437
3438         * invoke.texi (generic): Document
3439         (i686) Update.
3440         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
3441         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
3442         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
3443         (x86_use_incdec, x86_pad_returns): New variables
3444         (TARGET_CPU_DEFAULT_generic): New constant
3445         (TARGET_CPU_DEFAULT_NAMES): Add generic.
3446         (enum processor_type): Add generic32 and generic64.
3447         * i386.md (cpu attribute): Add generic32/generic64
3448         (movhi splitter): Behave sanely when both partial_reg_dependency and
3449         partial_reg_stall are set.
3450         (K8 splitters): Enable for generic as well.
3451         * predicates.md (incdec_operand): Use TARGET_INCDEC
3452         (aligned_operand): Avoid memory mismatch stalls.
3453         * athlon.md: Enable for generic64, new patterns for 128bit moves.
3454         * ppro.md: Enable for generic32
3455         * i386.c (generic64_cost, generic32_cost): New.
3456         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
3457         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
3458         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
3459         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
3460         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
3461         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
3462         x86_partial_reg_dependency, x86_memory_mismatch_stall,
3463         x86_accumulate_outgoing_args, x86_prologue_using_move,
3464         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
3465         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
3466         Enable for generic.
3467         (x86_use_incdec, x86_pad_returns): New.
3468         (override_options): Add generic32 and generic64, translate "generic"
3469         to generic32/generic64 and "i686" to "generic32", refuse
3470         "generic32"/"generic64" as arch target.
3471         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
3472         (ix86_reorg): Honor PAD_RETURNS.
3473
3474 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
3475
3476         * tree-pretty-print.c (dump_generic_node): Handle
3477         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
3478         * cgraph.c (cgraph_expand_queue): Rename from
3479         cgraph_analyze_queue.  Update all users.
3480         * cgraphunit.c (cgraph_assemble_pending_functions): Process
3481         cgraph_expand_queue.
3482         (cgraph_expand_all_functions): Likewise.
3483         (cgraph_finalize_pending_functions): Remove.  Update callers.
3484
3485         * tree.h (OMP_DIRECTIVE_P): Define.
3486         (OMP_PARALLEL_FN): Define.
3487         (OMP_PARALLEL_DATA_ARG): Define.
3488         (OMP_SECTIONS_SECTIONS): Define.
3489         * tree-pass.h (pass_expand_omp): Declare.
3490         * omp-low.c (struct omp_region): Declare.
3491         (struct omp_context): Remove fields 'parallel_type',
3492         'parallel_start_ix' and 'parallel_start_additional_args'.
3493         Update all users.
3494         (struct omp_for_data): Rename from struct expand_omp_for_data.
3495         (omp_regions): New static variable.
3496         (root_omp_region): New static variable.
3497         (find_omp_clause): Make static.
3498         (is_in_combined_parallel_ctx): Remove.
3499         (is_combined_parallel): New.
3500         (extract_omp_for_data): Move earlier in the file.
3501         (workshare_safe_to_combine_p): New.
3502         (get_ws_args_for): New.
3503         (determine_parallel_type): Move earlier in the file.
3504         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
3505         child function.
3506         (omp_copy_decl): Likewise.
3507         (create_omp_child_function): Likewise.
3508         (lookup_omp_region): New.
3509         (dump_omp_region): New.
3510         (debug_omp_region): New.
3511         (debug_all_omp_regions): New.
3512         (new_omp_region): New.
3513         (scan_omp_parallel): If parallel_nesting_level > 1, the
3514         directive is nested within another parallel directive.
3515         Set OMP_PARALLEL_FN.
3516         (scan_omp_for): Do not try to handle combined parallel+for
3517         cases.
3518         Remove FIXME comment.
3519         (scan_omp_nested): Remove.
3520         (scan_omp_1): Do not call scan_omp_nested when
3521         parallel_nesting_level is > 1.
3522         Do not change the DECL_CONTEXT of local variables found.
3523         (lookup_decl_in_outer_ctx): New.
3524         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
3525         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
3526         (lower_reduction_clauses): Rename from expand_reduction_clauses.
3527         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
3528         If CTX is nested, lookup VAR in the outer context when
3529         building copy assignment.
3530         (lower_send_clauses): Rename from expand_send_clauses.
3531         If CTX is nested, lookup VAR in the outer context when
3532         building copy assignments.
3533         (lower_send_shared_vars): Rename from expand_send_shared_vars.
3534         If CTX is nested, lookup VAR in the outer context when
3535         building copy assignments.
3536         (expand_parallel_call): Rename from build_parallel_call.
3537         Handle combined parallel+workshare cases.
3538         Re-implement to emit code into the CFG.
3539         (list2chain): New.
3540         (expand_omp_parallel): Re-implement to emit code into the CFG.
3541         Call move_sese_region_to_fn to outline the sub-graph
3542         containing the parallel region.
3543         (expand_omp_for_1): Remove.
3544         (expand_omp_for_generic): Re-implement to emit code into the
3545         CFG.
3546         (expand_omp_for_static_nochunk): Likewise.
3547         (expand_omp_for_static_chunk): Likewise.
3548         (expand_omp_for): Likewise.
3549         (expand_omp_sections): Likewise.
3550         (remove_exit_barriers): New.
3551         (expand_omp_synch): New.
3552         (expand_omp): New.
3553         (build_omp_regions_1): New.
3554         (build_omp_regions): New.
3555         (execute_expand_omp): New.
3556         (gate_expand_omp): New.
3557         (pass_expand_omp): Define.
3558         (lower_omp_sections): Rename from expand_omp_sections.
3559         Set OMP_SECTIONS_SECTIONS.
3560         (lower_omp_single_simple): Rename from expand_omp_single_simple.
3561         (lower_omp_single_copy): Rename from expand_omp_single_copy.
3562         (lower_omp_single): Rename from expand_omp_simple.
3563         (lower_omp_master): Rename from expand_omp_master.
3564         (lower_omp_ordered): Rename from expand_omp_ordered.
3565         (lower_omp_critical): Rename from expand_omp_critical.
3566         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
3567         (lower_omp_for): Re-implement.
3568         (lower_omp_parallel): Re-implement.
3569         (lower_regimplify): Rename from expand_regimplify.
3570         (lower_omp_1): Rename from expand_omp_1.
3571         If there are syntax errors in the program, replace every
3572         OpenMP directive with NOP.
3573         Call lower_omp_* instead of expand_omp_*.
3574         (lower_omp): Rename from expand_omp.
3575
3576         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
3577         * tree-gimple.h (enum omp_parallel_type): Remove.
3578         (gimple_boolify): Declare extern.
3579         (find_omp_clause, determine_parallel_type): Remove.
3580
3581         * gimple-low.c (lower_omp_directive): New.
3582         (lower_stmt): Call it.
3583         (record_vars_into): Move from ...
3584         (record_vars): ... here.
3585         Call record_vars_into with current_function_decl.
3586
3587         * gimplify.c (struct gimplify_ctx): Remove fields
3588         combined_pre_p and combined_ctxp.  Update users.
3589         (get_formal_tmp_var): Add documentation.
3590         (gimple_boolify): Make extern.
3591         (gimplify_expr_in_ctx): Remove.  Update callers.
3592         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
3593         will always be a BIND_EXPR.
3594         (gimplify_expr): Handle OMP_RETURN_EXPR.
3595         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
3596         (OMP_PARALLEL): Add 3 operands.
3597         (OMP_SECTIONS): Add 1 operand.
3598         (OMP_RETURN_EXPR): Define.
3599
3600         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
3601         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
3602         * tree-iterator.c (alloc_stmt_list): Assert that we are not
3603         creating a circular free list.
3604         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
3605
3606         * tree-flow.h (move_sese_region_to_fn): Declare.
3607         (record_vars_into): Declare.
3608         * tree-cfg.c (make_omp_sections_edges): New.
3609         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
3610         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
3611         OMP_SECTIONS and OMP_SECTION.
3612         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
3613         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
3614         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
3615         (gather_blocks_in_sese_region): New.
3616         (struct move_stmt_d): Declare.
3617         (move_stmt_r): New.
3618         (move_block_to_fn): New.
3619         (move_sese_region_to_fn): New.
3620
3621         * passes.c (init_optimization_passes): Schedule
3622         pass_expand_omp after pass_init_datastructures.
3623
3624         * tree-ssa-operands.c (get_expr_operands): Handle
3625         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
3626         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
3627
3628 2006-01-19  Jeff Law  <law@redhat.com>
3629
3630         * tree-vrp.c (extract_range_from_assert): Refine the result range
3631         if the variable referenced by the ASSERT_EXPR has a range and
3632         either the tentative result range or the previous range is a
3633         VR_ANTI_RANGE.
3634
3635 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3636
3637         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
3638
3639 2006-01-19  Jan Hubicka  <jh@suse.cz>
3640
3641         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
3642
3643 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
3644
3645         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
3646         (expand_compound_operation, expand_field_assignment): Fail if the
3647         bit lengths of an extract operation are out of range.
3648         (make_extraction): Compute wanted_inner_mode based on the position
3649         and length of the extraction.  Make it extraction_mode for non-constant
3650         positions, and do not modify offset in that case.  When generating a
3651         new MEM, use a mode that can hold the extraction while keeping correct
3652         alignment.  Remove code that supported MEMs wrapped by USEs.
3653         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
3654
3655 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
3656
3657         * config/s390/s390.md ("Y", "y"): New mode attribute.
3658         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
3659         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
3660         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
3661         "*addsi3_imm_cc", "*addsi3_carry1_cc",
3662         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
3663         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
3664         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
3665         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
3666         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
3667         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
3668         "addsi3", "subsi3"): Insn patterns removed.
3669         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
3670         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
3671         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
3672         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
3673         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
3674         "*sub<mode>3_cconly2"): New insn patterns.
3675         ("addsi3", "subsi3"): New expanders.
3676
3677 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
3678
3679         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
3680         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
3681         existing STMT_VINFO_VECTYPE if available.
3682         (vect_mark_relevant): Add special handling for stmts that are
3683         marked as STMT_VINFO_IN_PATTERN_P.
3684         (vect_analyze_loop): Call vect_pattern_recog.
3685         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
3686         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
3687         stmt_info.
3688         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
3689         (vect_recog_func_ptr): New function-pointer type.
3690         * tree-vect-patterns.c: New file.
3691         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
3692         (vect_recog_dot_prod_pattern, vect_pattern_recog):
3693         (vect_pattern_recog_1): New functions.
3694         (vect_pattern_recog_funcs): New array of function pointers.
3695
3696         * tree-vectorizer.h (ternary_op): New enum value.
3697         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
3698         declaration. Revised documentation. Removed redundant dump prints.
3699         Removed redundant argument. Added support for reduction patterns.
3700         (vectorizable_reduction): Added support for reduction patterns.
3701         (vect_transform_stmt): Added support for patterns.
3702
3703         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
3704         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
3705         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
3706         (expand_widen_pattern_expr): New function.
3707         (init_optabs): Initialize new optabs udot_prod_optab,
3708         sdot_prod_optab.
3709         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
3710         (sdot_prod_optab, udot_prod_optab): Define new optabs.
3711         (expand_widen_pattern_expr): New function declaration.
3712         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
3713         tree-codes.
3714         * tree-inline.c (estimate_num_insns_1): Added cases for new
3715         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3716         * tree-pretty-print.c (dump_generic_node): Likewise.
3717         (op_prio): Likewise.
3718         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3719         * tree-ssa-operands.c (get_expr_operands): Added case for
3720         DOT_PROD_EXPR.
3721         * tree-vect-patterns.c (widened_name_p): New function.
3722         (vect_recog_dot_prod_pattern): Added function implementation.
3723         * tree-vect-transform.c (get_initial_def_for_reduction): Added
3724         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
3725         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
3726         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
3727
3728         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
3729         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
3730         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
3731         (init_optabs): Initialize new optabs widen_ssum_optab,
3732         widen_usum_optab.
3733         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
3734         (widen_ssum_optab, widen_usum_optab): Define new optabs.
3735         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
3736         use instead of type of def.
3737         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
3738         function implementation.
3739         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
3740         widen_ssumv8hi): New.
3741
3742         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
3743         patterns.
3744
3745 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3746
3747         PR c/25805
3748         * c-decl.c (add_flexible_array_elts_to_size): New function.
3749         (finish_decl): Use it.
3750
3751 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
3752
3753         * diagnostic.h: Include options.h.
3754         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
3755         dependancies for diagnostic.h.
3756         * Makefile.in (DIAGNOSTIC_H): Add options.h.
3757
3758 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
3759
3760         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
3761         (ssa_ro_call_cache_valid): Ditto.
3762         * tree-ssa-alias.c (sort_tags_by_id): New function.
3763         (init_transitive_clobber_worklist): Ditto.
3764         (add_to_worklist): Ditto.
3765         (mark_aliases_call_clobbered): Ditto.
3766         (compute_tag_properties): Ditto.
3767         (set_initial_properties): Ditto.
3768         (compute_call_clobbered): Ditto.
3769         (compute_may_aliases):  Call compute_call_clobbered and grouping.
3770         (compute_flow_sensitive_aliasing): Remove clobbering related code.
3771         (compute_flow_insensitive_aliasing): Grouping now happens in our
3772         caller.
3773         (setup_pointers_and_addressables): Remove clobbering related code.
3774         (add_may_alias): Ditto.
3775         (replace_may_alias): Ditto.
3776         (get_nmt_for): Ditto.
3777         (create_global_var):
3778         (is_escape_site): Return an escape_type enumeration.
3779         * tree-flow-inline.h (is_call_clobbered):  Global var does not
3780         imply call clobbered.
3781         (mark_call_clobbered): Take a reason for marking this. Remove
3782         marking of globalness, and cache invalidation.
3783         (clear_call_clobbered): Remove cache invalidation code.
3784         * tree-dfa.c (dump_variable): If details is on, dump the reason
3785         for escaping.
3786         * tree-outof-ssa.c (create_temp): Copy escape mask from original
3787         variable.
3788         * tree-flow.h (struct ptr_info_def): Add escape mask member.
3789         (struct var_ann_d): Ditto.
3790         (enum escape_type): New.
3791         (mark_call_clobbered): Adjust prototype.
3792         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
3793         are never call clobbered.
3794         Record reasons for escaping.
3795         * tree-ssa-structalias.h (is_escape_site): Update prototype.
3796         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
3797         (ssa_ro_call_cache_valid): Ditto.
3798         (clobbered_v_may_defs): Ditto.
3799         (clobbered_vuses): Ditto.
3800         (ro_call_vuses): Ditto.
3801         (clobber_stats): New.
3802         (init_ssa_operands): Zero out clobber stats.
3803         (fini_ssa_operands): Print out clobber stats.
3804         (get_call_expr_operands): Pass callee fndecl to
3805         add_call_read_ops).
3806         (add_call_clobber_ops): Remove use of cache.
3807         Add use of PURE_CONST information.
3808         (add_call_read_ops): Remove use of cache.
3809         Add use of static not_read information.
3810
3811 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
3812
3813         Introduce TLS descriptors for i386 and x86_64.
3814         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
3815         (TARGET_ANY_GNU_TLS): New macro.
3816         (enum tls_dialect): Added TLS_DIALECT_GNU2.
3817         (struct machine_function): Add tls_descriptor_call_expanded_p.
3818         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
3819         (ix86_current_function_calls_tls_descriptor): Likewise.
3820         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
3821         (override_options): Introduce gnu2 tls dialect.
3822         (ix86_frame_pointer_required): Functions containing TLSCALLs are
3823         not leaves.
3824         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
3825         Likewise.
3826         (legitimize_tls_address): Adjust logic for GNU2 TLS.
3827         (ix86_init_machine_status): Initialize new field.
3828         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
3829         (ix86_tls_module_base): New.
3830         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
3831         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
3832         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
3833         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
3834         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
3835         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
3836         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
3837         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
3838         * config/i386/predicates.md (tls_modbase_operand): New.
3839         (tp_or_register_operand): New.
3840
3841 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
3842
3843         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
3844         (look_for_address_of): Ditto.
3845         (ipa_init): Walk the function decls.
3846         (static_execute): Don't set readonly on FUNCTION_DECL's.
3847
3848 2006-01-18  Roger Sayle  <roger@eyesopen.com>
3849
3850         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
3851         for shifts where the source and destination registers are different.
3852
3853 2006-01-18  Paul Brook  <paul@codesourcery.com>
3854
3855         Merge from csl-arm-branch.
3856         2005-03-14  Julian Brown  <julian@codesourcery.com>
3857         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
3858         (aeabi_llsl): Likewise.
3859         (ashrdi3): Likewise.
3860         (aeabi_lasr): Likewise.
3861         (lshrdi3): Likewise.
3862         (aeabi_llsr): Likewise.
3863         2005-03-10  Julian Brown  <julian@codesourcery.com>
3864         * config.gcc: Disable shared libgcc for SymbianOS.
3865         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
3866
3867 2006-01-18  DJ Delorie  <dj@redhat.com>
3868
3869         * c-pragma.c (handle_pragma_diagnostic): New.
3870         (init_pragma): Register it.
3871         * doc/extend.texi: Document it.
3872
3873         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
3874         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
3875         (diagnostic_context): Add classify_diagnostic[].
3876         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
3877         as errors if they're overridden to DK_WARNING.
3878         (diagnostic_initialize): Initialize classify_diagnostic[].
3879         (diagnostic_set_kind_override): New.
3880         (diagnostic_report_diagnostic): Check for kind changes.
3881         * opts.c (common_handle_option): Take lang_mask.  Update callers.
3882         Handle OPT_Werror_.
3883         * common.opt (Werror=): New.
3884         * doc/invoke.texi: Document -Werror=*
3885
3886 2006-01-18  Jeff Law  <law@redhat.com>
3887
3888         * tree-vrp.c (test_for_singularity): Correct test for new
3889         min limit.  Use operand_equal_p rather than pointer equality
3890         for testing if new min/max values are equal.
3891
3892         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3893         using range information until after propagation and folding.
3894
3895 2006-01-18  Richard Henderson  <rth@redhat.com>
3896             Aldy Hernandez  <aldyh@redhat.com>
3897             Jakub Jelinek  <jakub@redhat.com>
3898             Diego Novillo  <dnovillo@redhat.com>
3899
3900         * omp-low.c: New file.
3901         * c-omp.c: New file.
3902
3903 2006-01-18  Richard Henderson  <rth@redhat.com>
3904             Jakub Jelinek  <jakub@redhat.com>
3905             Diego Novillo  <dnovillo@redhat.com>
3906
3907         * doc/invoke.texi: Document -fopenmp.
3908         * tree-dump.h (debug_function): Declare.
3909         * hooks.c (hook_bool_tree_bool_false): New function.
3910         (hook_tree_tree_null): Remove.
3911         (hook_tree_tree_tree_null): New.
3912         * hooks.h: Update to match.
3913         * tree-pretty-print.c (debug_tree_chain): New.
3914         (print_generic_expr): Handle TDF_CHAIN.
3915         (dump_generic_node): Handle BLOCK.
3916         Do not abort with incomplete SWITCH_EXPRs.
3917         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3918         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3919         print space after directive name.
3920         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3921         Handle OMP_MASTER and OMP_ORDERED.
3922         Handle printing of OMP_BODY just in one place, goto
3923         dump_omp_body in the rest of OMP_* nodes that have
3924         OMP_BODY.
3925         Don't handle clause nodes here.  Update omp statements to
3926         use dump_omp_clauses.
3927         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3928         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3929         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3930         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3931         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3932         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3933         Adjust output for GOMP_PARALLEL.
3934         (dump_omp_clauses): New.
3935         (print_declaration): Dump DECL_VALUE_EXPR.
3936         (op_symbol_1): Split out of op_symbol.
3937         (dumping_stmts): Remove.  Update all users.
3938         * cgraph.c (cgraph_analyze_queue): New.
3939         (cgraph_add_new_function): New.
3940         * cgraph.h (cgraph_analyze_queue): Declare.
3941         (cgraph_add_new_function): Declare.
3942         (cgraph_lower_function): Remove.
3943         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3944         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3945         and TYPE_P nodes in its default clause.
3946         (empty_body_p): New.
3947         (tree_range_check_failed): New.
3948         (build5_stat): New.
3949         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3950         OMP_CLAUSE_REDUCTION_MERGE,
3951         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3952         OMP_CLAUSE_PRIVATE_DEBUG,
3953         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3954         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3955         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3956         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3957         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3958         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3959         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3960         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3961         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3962         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3963         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3964         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3965         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3966         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3967         (TREE_RANGE_CHECK): New.
3968         (empty_body_p): Declare.
3969         (enum omp_clause_default_kind): New.
3970         (build_string_literal): Declare.
3971         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3972         (build5_stat, build5): Declare.
3973         * tree-pass.h (TDF_CHAIN): Define.
3974         * tree-pass.h (PROP_gimple_lomp): Define.
3975         (pass_lower_omp): Declare.
3976         * diagnostic.h (debug_tree_chain): Declare.
3977         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3978         mode_for_size.
3979         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3980         * builtins.c (build_string_literal): Make extern.
3981         * gcc.c (include_spec_function): New.
3982         (static_spec_functions): Add it.
3983         (main): Move load of libgomp.spec ...
3984         (LINK_COMMAND_SPEC): ... here.
3985         (link_gomp_spec): New.
3986         (static_specs): Include it.
3987         (LINK_COMMAND_SPEC): Add link_gomp.
3988         (GOMP_SELF_SPECS): New.
3989         (driver_self_specs): Include it.
3990         (switch_matches): Don't mark inline.
3991         (main): Load libgomp.spec.
3992         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
3993         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
3994         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
3995         * tree-gimple.h (enum omp_parallel): Declare.
3996         (determine_parallel_type): Declare.
3997         (omp_firstprivatize_variable): Declare.
3998         (omp_reduction_init): Declare.
3999         (diagnose_omp_structured_block_errors): Declare.
4000         (struct walk_stmt_info): Add want_return_expr.
4001         (struct walk_stmt_info): Add want_bind_expr, want_locations.
4002         (find_omp_clause): Declare.
4003         (insert_field_into_struct): Declare.
4004         (struct walk_stmt_info): Move from tree-nested.c
4005         (walk_stmts): Declare.
4006         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
4007         to 200505.
4008         * cgraphunit.c (cgraph_lower_function): Make static.
4009         (cgraph_finalize_pending_functions): New.
4010         (cgraph_finalize_function): Call it.
4011         (cgraph_finalize_compilation_unit): Likewise.
4012         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
4013         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
4014         (BT_FN_UINT_UINT): New.
4015         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
4016         DEF_FUNCTION_TYPE_VAR_4): Document.
4017         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
4018         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
4019         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
4020         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
4021         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
4022         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
4023         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
4024         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
4025         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
4026         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
4027         into separate files.
4028         (DEF_GOMP_BUILTIN): New.
4029         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
4030         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
4031         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
4032         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
4033         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
4034         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
4035         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
4036         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
4037         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
4038         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
4039         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
4040         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
4041         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
4042         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
4043         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
4044         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
4045         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
4046         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
4047         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
4048         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
4049         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
4050         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
4051         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
4052         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
4053         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
4054         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
4055         * sync-builtins.def: New file, moved from builtins.def.
4056         * omp-builtins.def: New file, moved from builtins.def.
4057         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
4058         * gimple-low.c (lower_function_body): Clear data.
4059         (lower_stmt): Do not handle COMPOUND_EXPR.
4060         Remove call to print_node_brief.
4061         * c-tree.h (c_finish_omp_clauses): New prototype.
4062         (C_DECL_THREADPRIVATE_P): Define.
4063         (lookup_name_no_remap, c_omp_remap_private): Remove
4064         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
4065         (check_for_loop_decls): Update decl.
4066         (lookup_name_no_remap, c_omp_remap_private): Declare.
4067         (build_indirect_ref, build_modify_expr, pushdecl,
4068         pushdecl_top_level): Move to c-common.h.
4069         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
4070         before the switch, but just in the 2 places that need it.
4071         * c-decl.c (diagnose_mismatched_decls): Do not check for
4072         mismatched thread-local attributes when OLDDECL is marked
4073         threadprivate and NEWDECL has no thread-local attributes.
4074         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
4075         (c_gimple_diagnostics_recursively): Rename from
4076         c_warn_unused_result_recursively.  Invoke
4077         diagnose_omp_structured_block_errors.
4078         (check_for_loop_decls): Return a singular decl found.
4079         * langhooks.c (lhd_omp_predetermined_sharing): Return
4080         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
4081         (lhd_omp_firstprivatize_type_sizes): New.
4082         (lhd_omp_assignment): New.
4083         (lhd_omp_predetermined_sharing): New.
4084         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
4085         (struct lang_hooks_for_types): Add
4086         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
4087         omp_predetermined_sharing, omp_disregard_value_expr,
4088         omp_private_debug_clause, omp_clause_default_ctor,
4089         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
4090         (c_finish_omp_clauses): New.
4091         (c_finish_bc_stmt): Diagnose break within omp for.
4092         (c_begin_omp_parallel, c_finish_omp_parallel): New.
4093         (build_unary_op): Return error_mark after reporting
4094         a readonly_error.
4095         (build_modify_expr): Likewise.
4096         * gimplify.c: Include optabs.h and pointer-set.h.
4097         (enum gimplify_omp_var_data): Declare.
4098         (struct gimplify_omp_ctx): Declare.
4099         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
4100         and combined_ctxp.
4101         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
4102         (push_gimplify_context, pop_gimplify_context): Allow nesting.
4103         (splay_tree_compare_decl_uid): New.
4104         (new_omp_context): New.
4105         (delete_omp_context): New.
4106         (gimple_add_tmp_var): Call omp_add_variable.
4107         (gimplify_bind_expr): Likewise.
4108         (gimplify_var_or_parm_decl): If omp_notice_variable returned
4109         true, disregard DECL_VALUE_EXPR on the decl if any.
4110         (gimplify_expr_in_ctx): New.
4111         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
4112         omp_add_variable, omp_notice_variable, omp_is_private
4113         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
4114         gimplify_adjust_omp_clauses, gimplify_omp_parallel
4115         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
4116         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
4117         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
4118         gimplify_omp_atomic): New.
4119         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4120         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4121         OMP_CRITICAL and OMP_ATOMIC.
4122         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
4123         * c-pragma.h (enum pragma_kind): Add
4124         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
4125         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
4126         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
4127         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
4128         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
4129         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
4130         PRAGMA_OMP_THREADPRIVATE.
4131         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4132         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4133         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
4134         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
4135         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
4136         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
4137         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
4138         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
4139         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
4140         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
4141         * tree-ssa-dce.c (find_control_dependence): Do not assume that
4142         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
4143         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
4144         OpenMP directives.
4145         (struct nesting_info): Add field_map,
4146         suppress_expansion, debug_var_chain.
4147         (create_nesting_tree): Initialize them.
4148         (lookup_field_for_decl): Use field_map.
4149         (get_nonlocal_debug_decl, get_local_debug_decl): New.
4150         (convert_local_omp_clauses): New.
4151         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
4152         (walk_body): Split out of walk_function.
4153         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
4154         (convert_nonlocal_reference): Handle omp statements.
4155         (convert_local_reference): Likewise.
4156         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
4157         (unnest_nesting_tree): New.
4158         (lower_nested_functions): Call it.
4159         (insert_field_into_struct): Make extern.
4160         (struct walk_stmt_info): Move to tree-gimple.h.
4161         (walk_stmts): Make extern.
4162         * omp-builtins.def: New file.
4163         * tree-iterator.c (expr_only): Clarify comment.
4164         * c-common.h (pushdecl_top_level, pushdecl,
4165         build_modify_expr, build_indirect_ref,
4166         c_finish_omp_master, c_finish_omp_critical,
4167         c_finish_omp_ordered, c_finish_omp_barrier,
4168         c_finish_omp_atomic, c_finish_omp_flush,
4169         c_finish_omp_for, c_split_parallel_clauses,
4170         omp_clause_default_kind, c_omp_sharing_predetermined,
4171         c_omp_remap_decl): Declare.
4172         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
4173         (OBJS-common): Add omp-low.o.
4174         (c-omp.o, omp-low.o): Add.
4175         (gimplify.o): Add dependency on $(OPTABS_H).
4176         (GTFILES): Add omp-low.c.
4177         (gt-stringpool.h): Add.
4178         * tree-cfg.c (set_bb_for_stmt): Do not update the
4179         block-to-labels map if we are currently expanding to RTL.
4180         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
4181         checks.
4182         Handle IDENTIFIER_NODE.
4183         (tree_verify_flow_info): Do not ICE when emitting error
4184         messages about invalid labels.
4185         (dump_function_to_file): Reset CFUN before emitting the body
4186         of the function.
4187         (debug_function): New.
4188         * passes.c (init_optimization_passes): Schedule
4189         pass_lower_omp.
4190         * langhooks-def.h (lhd_omp_predetermined_sharing,
4191         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
4192         Declare.
4193         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
4194         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
4195         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
4196         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
4197         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
4198         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
4199         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
4200         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
4201         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
4202         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
4203         (LANG_HOOK_DECLS): Use them.
4204
4205 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
4206             Richard Henderson  <rth@redhat.com>
4207             Jakub Jelinek  <jakub@redhat.com>
4208             Diego Novillo  <dnovillo@redhat.com>
4209
4210         * c-parser.c (pragma_omp_clause): Define.
4211         (c_parser_declaration_or_fndef): Document OpenMP syntax.
4212         (c_parser_compound_statement): Likewise.
4213         (c_parser_statement): Likewise.
4214         (c_parser_pragma): Handle omp pragmas.
4215         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
4216         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
4217         (c_parser_omp_clause_name, check_no_duplicate_clause,
4218         c_parser_omp_variable_list,
4219         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
4220         c_parser_omp_clause_copyprivate,
4221         c_parser_omp_clause_default,
4222         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
4223         c_parser_omp_clause_lastprivate,
4224         c_parser_omp_clause_nowait,
4225         c_parser_omp_clause_num_threads,
4226         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
4227         c_parser_omp_clause_reduction,
4228         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
4229         c_parser_omp_all_clauses, c_parser_omp_structured_block,
4230         c_parser_omp_atomic, c_parser_omp_barrier,
4231         c_parser_omp_critical, c_parser_omp_flush,
4232         c_parser_omp_for_loop, c_parser_omp_for,
4233         c_parser_omp_master, c_parser_omp_ordered,
4234         c_parser_omp_sections_scope, c_parser_omp_sections,
4235         c_parser_omp_parallel, c_parser_omp_single,
4236         c_parser_omp_construct, c_parser_omp_threadprivate): New.
4237         * c-pragma.c (init_pragma): Do omp pragma registration here.
4238         * c.opt (fopenmp): New flag.
4239
4240 2006-01-18  Eric Christopher  <echristo@apple.com>
4241
4242         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
4243         * config/darwin.h (GOMP_SELF_SPECS): Define.
4244
4245 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4246
4247         * rtl.h: Remove the prototype for reg_alloc.
4248
4249 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4250
4251         PR target/25731
4252         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
4253         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
4254         sjlj and dwarf2 exception handling.
4255         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
4256         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
4257         * pa/pa.c (function_value): Treat complex and vector types as
4258         aggregates.
4259         (function_arg): Likewise.  Only pass scalar floats in the floating
4260         point argument registers.
4261         * pa/t-slibgcc-dwarf-ver: New file.
4262         * pa/t-slibgcc-sjlj-ver: New file.
4263         * pa/t-slibgcc-elf-ver: Delete file.
4264
4265 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
4266
4267         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
4268         unlikely_test_section_p test.
4269
4270 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4271
4272         * mode-switching.c (optimize_mode_switching): Make it static.
4273         * basic-block.h: Remove the prototype for
4274         optimize_mode_switching.
4275
4276         * modulo-sched.c (sms_schedule): Make it static.
4277         * rtl.h: Remove the prototype for sms_schedule.
4278
4279         * postreload-gcse.c (gcse_after_reload_main): Make it static.
4280         * rtl.h: Remove the prototype for gcse_after_reload_main.
4281
4282         * reg-stack.c (reg_to_stack): Make it static.
4283         * rtl.h: Remove the prototype for reg_to_stack.
4284
4285         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
4286         Make them static.
4287         * rtl.h: Remove the prototypes for regrename_optimize and
4288         copyprop_hardreg_forward.
4289
4290 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
4291
4292         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
4293         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
4294         Test against the appropriate null constant for the mode.
4295         If 'fixup_overlap' is true, swap the operands if they overlap.
4296         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
4297         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
4298         alpha_split_tmode_pair and adjust for above change.
4299         * config/alpha/alpha.md (movtf_internal): Adjust call to
4300         alpha_split_tfmode_pair and rely on it to swap the operands.
4301         (movti_internal): New insn and post-reload splitter.
4302         (movti): New expander.
4303
4304 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
4305
4306         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
4307         operands.
4308
4309 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4310
4311         * rtlanal.c (global_reg_mentioned_p_1,
4312         global_reg_mentioned_p): Remove.
4313         * rtl.h: Remove the prototype for global_reg_mentioned_p.
4314
4315         * flow.c (initialize_uninitialized_subregs): Make it static.
4316         * rtl.h: Remove the prototype for
4317         initialize_uninitialized_subregs.
4318
4319         * function.c (instantiate_virtual_regs): Make it static.
4320         * function.h: Remove the prototype for
4321         instantiate_virtual_regs.
4322
4323         * regmove.c (regmove_optimize, combine_stack_adjustments):
4324         Make them static.
4325         * rtl.h: Remove the prototypes for regmove_optimize and
4326         combine_stack_adjustments.
4327
4328 2006-01-17  Roger Sayle  <roger@eyesopen.com>
4329
4330         * config/i386/i386.c (COSTS_N_BYTES): New macro.
4331         (size_cost): Encode costs in bytes so that a reg-reg addition is
4332         equivalent to COSTS_N_INSNS(1).
4333         (override_options): Use the size_cost.branch_cost as the default
4334         ix86_branch_cost when optimizing for size.
4335
4336 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4337
4338         * Makefile.in (D32PBIT_FUNCS): New.
4339         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
4340         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
4341         D64PBIT_FUNCS and D128PBIT_FUNCS.
4342         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
4343         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
4344         D128PBIT are set.
4345         (decnumber_dep): Define.
4346         * doc/libgcc.texi (Decimal float library routines): New node.
4347         * config/dfp-bit.h, config/dfp-bit.c: New files.
4348
4349 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4350
4351         * expr.c (emit_move_change_mode): Always adjust addresses, not
4352         just during reload.  Copy replacements only during reload.
4353         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
4354         emit_move_via_integer.
4355
4356 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
4357
4358         * Makefile.in (check-%, check-consistency): Use $${srcdir}
4359         instead of $(srcdir) and ${srcdir}.
4360
4361 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
4362
4363         PR target/592
4364         PR middle-end/11135
4365         * arm.h (struct machine_function): Add pic_reg.
4366         * arm.c (arm_pic_register): Make unsigned.
4367         (arm_override_options): Only set arm_pic_register if
4368         TARGET_SINGLE_PIC_BASE.
4369         (use_return_insn): Only test for a pic register if it is fixed.
4370         (arm_compute_save_reg0_reg12_mask): Likewise.
4371         (thumb_compute_save_reg_mask): Likewise.
4372         (legitimate_pic_operand): Factor out some known invariants.
4373         (legitimize_pic_address): If we don't have a fixed pic register,
4374         then set up a pseudo in the function entry sequence.  Handle the
4375         pic base being in a pseudo.
4376         (arm_load_pic_register): Handle the pic register being in a pseudo.
4377         (arm_expand_prologue): Only set up the pic register if it is fixed.
4378         (thumb_expand_prologue): Likewise.
4379         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
4380         (pic_load_addr_based_insn): Likewise.
4381         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
4382         fixed.
4383
4384 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4385
4386         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
4387         decimal float modes for all floating point registers.
4388
4389         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
4390         match_code "mem" with match_test "macho_lo_sum_memory_operand".
4391
4392 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
4393
4394         PR c/25682
4395         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
4396         even when the pointer is not NULL.
4397
4398 2006-01-16  Ian Lance Taylor  <ian@airs.com>
4399
4400         * common.opt (ftoplevel-reorder): New option.
4401         * cgraph.c (cgraph_asm_nodes): New global variable.
4402         (cgraph_asm_last_node): New static variable.
4403         (cgraph_order): New global variable.
4404         (cgraph_create_node): Set new order field.
4405         (cgraph_varpool_node): Likewise.
4406         (decide_is_variable_needed): Return true if not
4407         flag_toplevel_reorder.
4408         (cgraph_add_asm_node): New function.
4409         * cgraph.h (struct cgraph_node): Add order field.
4410         (struct cgraph_varpool_node): Add order field.
4411         (struct cgraph_asm_node): Define.
4412         (cgraph_asm_nodes, cgraph_order): Declare.
4413         (cgraph_add_asm_node): Declare.
4414         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
4415         function.
4416         (cgraph_varpool_assemble_pending_decls): Call it.
4417         (cgraph_output_pending_asms): New static function.
4418         (cgraph_finalize_compilation_unit): Call it.
4419         (struct cgraph_order_sort): Define.
4420         (cgraph_output_in_order): New static function.
4421         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
4422         !flag_toplevel_reorder case.
4423         * c-parser.c: Include "cgraph.h".
4424         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
4425         assemble_asm.
4426         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
4427         than -fno-unit-at-a-time.
4428         * doc/invoke.texi (Option Summary): Mention
4429         -fno-toplevel-reorder.
4430         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
4431         -funit-at-a-time documentation.
4432
4433 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
4434             Kazu Hirata  <kazu@codesourcery.com>
4435
4436         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
4437
4438 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
4439
4440         * Makefile.in (FUNCTION_H): New.  Use it instead of
4441         function.h throughout the file.
4442         * function.h: Include tree.h.
4443
4444 2006-01-17  Ben Elliston  <bje@au.ibm.com>
4445
4446         * recog.c: Separate some functions with whitespace.
4447
4448 2006-01-16  Richard Henderson  <rth@redhat.com>
4449
4450         Merge from gomp branch:
4451         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
4452         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
4453         and rename from struct inline_data.  Rename callee* to dst*;
4454         caller* to src*; add copy_decl hook, transform_call_graph_edges,
4455         transform_new_cfg, transform_return_to_modify, and
4456         transform_lang_insert_block flags; remove cloning_p, versioning_p,
4457         update_clones_p.
4458         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
4459         (copy_decl_for_dup): Remove.
4460         * tree-inline.c (struct inline_data): Move to header.
4461         (insert_decl_map): Export.
4462         (remap_decl): Update for member name changes.  Use copy_decl hook.
4463         Allow for replacement to be a non-decl.  Remove dead code.
4464         (remap_type_1): Check for existing mapping.
4465         (remap_type): Export.
4466         (remap_decls): Update for member name changes.
4467         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
4468         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
4469         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
4470         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
4471         (tree_function_versioning, build_duplicate_type): Likewise.
4472         (copy_body_r): Likewise.  Export.
4473         (copy_decl_for_dup): Split into ...
4474         (copy_decl_for_dup_finish, copy_decl_to_var,
4475         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
4476         (replace_ref_tree, inlining_p): Remove.
4477
4478 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4479
4480         * ifcvt.c (if_convert): Make it static.
4481         * rtl.h: Remove the prototype for if_convert.
4482
4483         * local-alloc.c (local_alloc): Make it static.
4484         * rtl.h: Remove the prototype for local_alloc.
4485
4486         * loop.c (loop_optimize): Make it static.
4487         * cfgloop.h: Remove the prototype for loop_optimize.
4488         * rtl.h: Likewise.
4489
4490 2006-01-16  DJ Delorie  <dj@redhat.com>
4491
4492         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
4493         mems.
4494
4495 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4496
4497         * pa.md: Disparage copies between general and floating-point registers
4498         in 32-bit move patterns.
4499
4500 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
4501
4502         PR testsuite/25741
4503         * Makefile.in (check-%): Depend on site.exp instead of
4504         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
4505         directories.
4506
4507 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4508
4509         * global.c (global_alloc): Make it static.
4510         * rtl.h: Remove the prototype for global_alloc.
4511
4512 2006-01-16  Richard Guenther  <rguenther@suse.de>
4513
4514         * tree-ssa-alias.c (struct used_part): Add write_only field.
4515         (get_or_create_used_part_for): Initialize it to true.
4516         (create_overlap_variables_for): Don't create structure variables
4517         for structures that only are written to.
4518         (find_used_portions): Handle MODIFY_EXPR to track whether a
4519         structure is only written to.
4520
4521 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4522
4523         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
4524         static.
4525         * basic-block.h: Remove the prototype for
4526         partition_hot_cold_basic_blocks.
4527
4528 2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>
4529
4530         * cppspec.c (lang_specific_spec_functions): Remove.
4531         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
4532         * gcc.h (lang_specific_spec_functions): Remove.
4533         * gccspec.c (lang_specific_spec_functions): Remove.
4534
4535 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
4536
4537         * combine.c (record_value_for_reg): Invalidate registers
4538         if INSN is null.
4539         (record_dead_and_set_regs_1): Likewise, by passing them to
4540         record_value_for_reg.
4541         (record_dead_and_set_regs): Invalidate stores made by a
4542         call.  We do not combine across a call, but we still
4543         relied on equivalences.
4544
4545 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4546
4547         * tree-vrp.c (extract_range_from_binary_expr): Cope with
4548         vrp_int_const_binop returning non-constant nodes.
4549
4550 2006-01-16  Paul Brook  <paul@codesourcery.com>
4551
4552         * config/m68k/m68k.c (output_move_const_into_data_reg):
4553         Output correct mnemonic for mvz and mvs.
4554
4555 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
4556
4557         * rtl-factoring.c: Add sequence abstraction algorithm.
4558         * cfgcleanup.c (outgoing_edges_match): Extra checks.
4559         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
4560         ABNORMAL edges.
4561         (block_has_preserve_label): New function.
4562         * common.opt: Register new pass.
4563         * Makefile.in: Ditto.
4564         * passes.c: Ditto.
4565         * timevar.def: Ditto.
4566         * tree-pass.h: Ditto.
4567         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
4568         * rtl.h (make_jump_insn_raw): Add forward decl.
4569         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
4570
4571 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4572             Roger Sayle  <roger@eyesopen.com>
4573
4574         * fold-const.c (fold_minmax): New static function.
4575         (fold_binary) <MIN_EXPR>: Call it.
4576         <MAX_EXPR>: Likewise.
4577         * stor-layout.c (place_field): Use DECL_SIZE consistently
4578         in the computation of the new record size.
4579
4580 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4581
4582         * cse.c (cse_condition_code_reg): Make it static.
4583         * rtl.h: Remove the prototype for cse_condition_code_reg.
4584
4585         * combine.c (combine_instructions): Make it static.
4586         * rtl.h: Remove the prototype for combine_instructions.
4587
4588 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4589
4590         PR target/25168
4591         * tree.c (get_file_function_name_long): Concatenate the first global
4592         object name with a string derived from the input filename of the object
4593         for type "F".
4594
4595 2006-01-16  Ben Elliston  <bje@au.ibm.com>
4596
4597         * config/i386/winnt-stubs.c: Update FSF address.
4598         * config/xtensa/ieee754-df.S: Ditto.
4599         * config/xtensa/ieee754-sf.S: Ditto.
4600
4601 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4602
4603         * ifcvt.c (noce_init_if_info): New static function, broken out of
4604         noce_process_if_block.
4605         (noce_process_if_block): Call noce_init_if_info.
4606         (check_cond_move_block): New static function.
4607         (cond_move_process_if_block): New static function.
4608         (process_if_block): Call cond_move_process_if_block.
4609
4610 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
4611
4612         * cselib.c (hash_table): Rename to cselib_hash_table.
4613         (cselib_clear_table, discard_useless_values,
4614         remove_useless_values, cselib_lookup_mem, cselib_lookup,
4615         cselib_init, cselib_finish): Adjust uses of hash_table.
4616
4617 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
4618
4619         PR tree-optimization/25485
4620         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
4621         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
4622         is known to be false and true, respectively.
4623
4624 2006-01-14  Richard Guenther  <rguenther@suse.de>
4625
4626         PR tree-optimization/22548
4627         PR tree-optimization/22555
4628         PR tree-optimization/22501
4629         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
4630         * params.def (salias-max-array-elements): New parameter.
4631         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
4632         * doc/invoke.texi (salias-max-array-elements): Document.
4633         * tree-flow-inline.h (var_can_have_subvars): We also handle
4634         arrays now.
4635         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
4636         COMPONENT_REF.
4637         * tree-ssa-structalias.c (params.h): Include.
4638         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
4639         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
4640         (get_constraint_for): For ADDR_EXPR operating on something
4641         containing an ARRAY_REF, add all subvars to the solution.
4642         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
4643         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
4644         for creating MUST_DEFs.
4645         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
4646
4647 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
4648
4649         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
4650         functions.
4651         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
4652         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
4653         number_of_iterations_le): New functions.
4654         (number_of_iterations_special): Removed.
4655         (number_of_iterations_exit): Do not use number_of_iterations_special.
4656         * tree.c (unsigned_type_for): Always return integer type.
4657
4658 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
4659         Richard Guenther  <rguenther@suse.de>
4660
4661         PR rtl-optimization/24257
4662         * gcse.c (find_moveable_store): Only consider a store movable
4663         when the SET_SRC of the insn can be assigned to a register.
4664
4665 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4666
4667         * tree.c (tree_not_class_check_failed): New function.
4668         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
4669         (tree_not_class_check_failed): Declare.
4670
4671 2006-01-13  Ian Lance Taylor  <ian@airs.com>
4672
4673         * reload1.c (do_output_reload): Add assertion rejecting a
4674         CALL_INSN.
4675
4676 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
4677
4678         * combine.c (struct reg_stat): Add new fields truncation_label and
4679         truncated_to_mode.
4680         (record_value_for_reg): Reset truncated_to_mode.
4681         (record_truncated_value): New function.
4682         (check_promoted_subreg): Call it.  Rename to check_conversions.
4683         (combine_instructions): Rename check_promoted_subreg to
4684         check_conversions.
4685         (reg_truncated_to_mode): New function.
4686         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
4687         (gen_lowpart_or_truncate): New function.
4688         (force_to_mode): Use it instead of gen_lowpart.
4689
4690 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
4691
4692         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
4693         VAR is a tag, not its type tag.
4694
4695 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
4696
4697         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
4698         alternatives to match style of other entries.
4699         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
4700
4701 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
4702
4703         PR tree-optimization/25771
4704         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
4705         SSA_NAMES.
4706
4707 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
4708
4709         PR tree-opt/24365
4710         * tree-inline.c (declare_return_variable): If the return variable
4711         was marked as a non gimple complex, set the return slot variable
4712         to be a non gimple comple variable.
4713
4714 2006-01-13  Richard Guenther  <rguenther@suse.de>
4715
4716         * builtins.c (expand_builtin_sincos): New function.
4717         (expand_builtin_mathfn_3): Remove dead code, sin and cos
4718         do not set errno.
4719         (expand_builtin): Expand sincos using expand_builtin_sincos.
4720
4721 2006-01-12  DJ Delorie  <dj@redhat.com>
4722
4723         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
4724         shift counts, separate SI shifts for m32c vs m16c, pass shift type
4725         so that constant shifts can be split.
4726         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
4727         (m32c_valid_pointer_mode): Make static.
4728         (shift_gen_func_for): New.
4729         (m32c_prepare_shift): Use it.  Split large const shifts into
4730         multiple shifts.
4731         * config/m32c/predicates.md (shiftcount_operand): Allow more
4732         general operands.
4733         (longshiftcount_operand): New.
4734         * doc/md.texi (Machine Constraints): Document In6.
4735
4736 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4737
4738         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
4739         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
4740         documentation.
4741
4742 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
4743
4744         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
4745         to try to avoid clobbering pieces of structures when we know
4746         something about the whole structure.
4747         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
4748
4749 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4750
4751         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
4752         return in memory, as this is no limitation is no longer present.
4753
4754 2006-01-12  DJ Delorie  <dj@redhat.com>
4755
4756         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
4757         mova with fb, and for fb+0 -> An.
4758
4759         * config/m32c/mov.md (peephole2): Fix enabling logic.
4760
4761         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
4762         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
4763         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
4764         FINI_ARRAY_SECTION_ASM_OP): Define.
4765
4766         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
4767         variable.
4768         (m32c_legitimize_reload_address): New logic to reload FB to An.
4769         (m32c_output_reg_push): Add newline.
4770         (m32c_output_reg_pop): Likewise.
4771
4772 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
4773
4774         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
4775
4776 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
4777
4778         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
4779
4780 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4781
4782         * config/sh/predicates.md (sh_rep_vec): Add parallel to
4783         match_code.
4784
4785 2006-01-11  Ben Elliston  <bje@au.ibm.com>
4786
4787         * rtlanal.c (find_reg_note): Assert insn is not null.
4788
4789 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4790
4791         * df-scan.c (df_hard_reg_init): Move declaration of i outside
4792         ifdef.
4793
4794 2006-01-11  Jeff Law  <law@redhat.com>
4795
4796         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
4797         hold edge pairs.
4798         (mark_threaded_blocks, register_jump_thread): New functions.
4799         (thread_through_all_blocks): Remove unwanted argument.  No
4800         longer rely on e->aux to communicate thread target info.
4801         Call mark_threaded_blocks.  Release the threaded_blocks
4802         bitmap and threaded_edges vector when complete.
4803         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
4804         (threaded_blocks): Remove.
4805         (tree_ssa_dominator_optimize): Remove initialization and
4806         finalization of threaded_blocks.  Simplify call to
4807         thread_through_all_blocks.
4808         (thread_across_edge): Call register_jump_thread rather than
4809         storing thread information into e->aux.
4810         (free_all_edge_infos): Simplify now that e->aux is no longer
4811         used to communicate with thread_through_all_blocks.
4812         * tree-flow.h (thread_through_all_blocks): Update prototype.
4813         (register_jump_thread): Prototype.
4814
4815 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4816
4817         * df-core.c (df_compact_blocks, df_bb_replace): Use
4818         SET_BASIC_BLOCK instead of BASIC_BLOCK.
4819
4820 2006-01-11  Richard Guenther  <rguenther@suse.de>
4821
4822         PR tree-optimization/25734
4823         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
4824         stop propagation after successful propagation to the LHS.
4825
4826 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4827
4828         * basic-block.h (control_flow_graph): Change the type of
4829         x_basic_block_info to VEC(basic_block,gc) *.
4830         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
4831         basic_block_info.
4832         (SET_BASIC_BLOCK): New.
4833         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
4834         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
4835         * cfgbuild.c (find_basic_blocks): Likewise.
4836         * cfglayout.c (fixup_reorder_chain): Likewise.
4837         * cfgrtl.c (create_basic_block_structure,
4838         rtl_create_basic_block): Likewise.
4839         * ifcvt.c (find_if_case_1): Likewise.
4840         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
4841         Likewise.
4842
4843 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4844
4845         * Makefile.in: Removed rotted odf.c entry.
4846
4847 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
4848
4849         PR target/25706
4850         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
4851         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
4852         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
4853         output pattern modifier, not %e.
4854         * config/cris/cris.c (cris_op_str): Update comment about pattern
4855         modifier.
4856         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
4857         before falling through into...
4858         <case 'E'>: Redefined from old 'e' case.
4859
4860 2006-01-11  Jan Hubicka  <jh@suse.cz>
4861
4862         PR target/25042
4863         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
4864
4865 2006-01-11  Jan Hubicka  <jh@suse.cz>
4866
4867         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
4868         * i386.c (x86_decompose_lea): Kill.
4869         (ix86_rtx_costs): Kill.
4870
4871 2006-01-11  Jan Hubicka  <jh@suse.cz>
4872
4873         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
4874         * cgraph.h (cgraph_node): Add inline_decl.
4875         (cgraph_insert_node_to_hashtable): Declare.
4876         (save_inline_function_body): Declare.
4877         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
4878         clones.
4879         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
4880         (cgraph_function_versioning): Update call of tree_function_versioning.
4881         (save_inline_function_body): New function.
4882         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
4883         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
4884         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
4885         (cgraph_default_inline_p): Likewise.
4886         (cgraph_decide_inlining_incrementally): Likewise.
4887         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
4888         (copy_bb): Kill saving; do updating of clones.
4889         (copy_cfg_body): Kill saving.
4890         (initialize_inlined-parameters): Likewise.
4891         (expand_call_inline): Likewise.
4892         (save_body): Kill.
4893         (tree_function_versioning): New parameter "update_clones".
4894         (inlining_p): Kill saving.
4895         * tree-inline.h (tree_function_versioning): Update prototype.
4896         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
4897         saving.
4898
4899 2006-01-11  Ian Lance Taylor <ian@airs.com>
4900
4901         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
4902         Allow undoing set of machine mode.
4903         (do_SUBST): Use enums instead of is_int.
4904         (do_SUBST_MODE): New function.
4905         (SUBST_MODE): New macro.
4906         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
4907         reg and trying to replace reg_regno_rtx with a new register.
4908         (undo_all): Use new enums, handle undoing a PUT_MODE change.
4909         (simplify_set): Use SUBST_MODE.
4910         (distribute_notes): Remove code that tried to update reg notes
4911         for regno_reg_rtx changes.
4912
4913 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
4914
4915         PR tree-optimization/23109
4916         PR tree-optimization/23948
4917         PR tree-optimization/24123
4918
4919         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
4920         * tree-cfg.c (single_noncomplex_succ): New.
4921         * tree-flow.h (single_noncomplex_succ): Declare it.
4922         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4923         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4924         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
4925         insert_bb, register_division_in, insert_reciprocals,
4926         replace_reciprocal, free_bb): New.
4927         (execute_cse_reciprocals_1): Rewritten.
4928         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
4929         Do not commit any edge insertion.  Always compute dominators and
4930         create the allocation pool.
4931         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
4932         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
4933         * targhooks.c (default_min_divistions_for_recip_mul): New.
4934         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
4935         * passes.c (init_optimization_passes): Run recip after tree loop
4936         optimizations.
4937         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
4938
4939 2006-01-11  Danny Berlin <dberlin@dberlin.org>
4940             Kenneth Zadeck <zadeck@naturalbridge.com>
4941
4942         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
4943         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
4944         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
4945         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
4946         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
4947         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
4948         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
4949         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
4950         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
4951         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
4952         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
4953         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
4954         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
4955         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
4956         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
4957         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
4958         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
4959         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
4960         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
4961         DF_SCAN_POST_ALLOC): New macros.
4962         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
4963         df_free_bb_function, df_local_compute_function, df_init_function,
4964         df_dataflow_function, df_confluence_function_0,
4965         df_confluence_function_n, df_transfer_function,
4966         df_finalizer_function, df_free_function, df_dump_problem_function,
4967         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
4968         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
4969         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
4970         df_urec_bb_info, ) New types.
4971         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
4972         variables.
4973         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
4974         df_analyze_simple_change_some_blocks,
4975         df_analyze_simple_change_one_block, df_compact_blocks,
4976         df_bb_replace, df_bb_regno_last_use_find,
4977         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
4978         df_insn_regno_def_p, df_find_def, df_find_use,
4979         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
4980         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
4981         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
4982         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
4983         debug_df_chain, df_get_dependent_problem, df_chain_create,
4984         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
4985         df_grow_bb_info, df_chain_dump, df_print_bb_index,
4986         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
4987         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
4988         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
4989         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
4990         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
4991         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
4992         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
4993         df_ref_remove, df_insn_refs_delete, df_refs_delete,
4994         df_reorganize_refs, df_set_state, df_hard_reg_init,
4995         df_read_modify_subreg_p) New public functions.
4996         * df-core.c: The core dataflow solver and glue routines for rtl
4997         dataflow.
4998         (df_init, df_add_problem, df_set_blocks, df_finish,
4999         df_hybrid_search_forward, df_hybrid_search_backward,
5000         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
5001         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
5002         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
5003         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
5004         df_reg_defined, df_find_use, df_reg_used, df_dump,
5005         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
5006         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
5007         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
5008         debug_df_useno, reset_df_after_reload): New functions.
5009         * df-scan.c: The scanning fuctions, once in df.c, completely
5010         rewritten so that they now fully model the functionality of
5011         register usage at the backend.
5012         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
5013         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
5014         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
5015         df_grow_insn_info, df_rescan_blocks, df_ref_create,
5016         df_get_artificial_defs, df_get_artificial_uses,
5017         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
5018         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
5019         df_refs_delete, df_reorganize_refs, df_set_state,
5020         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
5021         df_def_record_1, df_defs_record, df_uses_record,
5022         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
5023         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
5024         df_record_exit_block_uses, df_hard_reg_init): New functions.
5025
5026         * df-problems.c: Seven concrete dataflow problems that use the
5027         scanning in df-scan.c and are solved by the engine in df-core.c.
5028         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
5029         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
5030         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
5031         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
5032         df_ru_free_bb_info, df_ru_alloc,
5033         df_ru_bb_local_compute_process_def,
5034         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
5035         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
5036         df_ru_transfer_function, df_ru_free, df_ru_dump,
5037         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
5038         df_rd_free_bb_info, df_rd_alloc,
5039         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
5040         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
5041         df_rd_transfer_function, df_rd_free, df_rd_dump,
5042         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
5043         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
5044         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
5045         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
5046         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
5047         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
5048         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
5049         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
5050         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
5051         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
5052         df_urec_mark_reg_change, df_urec_check_earlyclobber,
5053         df_urec_mark_reg_use_for_earlyclobber,
5054         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
5055         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
5056         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
5057         df_urec_dump, df_urec_add_problem, df_chain_alloc,
5058         df_chain_create_bb_process_use, df_chain_create_bb,
5059         df_chain_finalize, df_chain_free, df_chains_dump,
5060         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
5061         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
5062         df_reg_lifetime): New functions.
5063         * df.c: Deleted file.
5064         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
5065         consistent with new df api.
5066         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
5067         rest_of_handle_sms): Ditto.
5068         * web.c (unionfind_union, union_defs, entry_register, web_main):
5069         Ditto.
5070         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
5071         invariant_expr_equal_p, find_defs, check_dependencies,
5072         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
5073         free_inv_motion_data, move_loop_invariants): Ditto.
5074         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
5075         Update dependencies.
5076         (odf.c): Added defective entry that was deleted later in day.
5077         * sched-deps.c (sched_analyze_1): Ditto.
5078
5079 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
5080
5081         * tree-ssa-operands.c (get_expr_operands): Record addressable
5082         variables directly.  Do not call add_stmt_operands for CONST_DECLs
5083         and ARRAY_DECLs.
5084         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
5085         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
5086
5087 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5088
5089         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
5090         function returns true in the positive case.
5091
5092 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5093
5094         PR target/20754
5095         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
5096         for SI, DI, SF and DF modes.  Add alternatives to copy between
5097         general and floating point registers to the 32-bit patterns.
5098         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
5099         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
5100         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
5101         generating 64-bit code.
5102         * config/pa/pa.c (output_move_double): Handle copies between general
5103         and floating registers.
5104
5105 2006-01-10  Stuart Hastings  <stuart@apple.com>
5106
5107         * config/i386/i386.md (set_got): Update.
5108         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
5109         (builtin_setjmp_receiver): Mach-O support.
5110         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
5111         (GOT_SYMBOL_NAME): Define.
5112         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
5113         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
5114         * config/i386/i386.c (override_options): Revise for Darwin.
5115         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
5116         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
5117         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
5118         * config/i386/i386-protos.h (output_set_got): Likewise.
5119         * config/darwin.c (machopic_legitimize_pic_address): Update
5120         regs_ever_live[].
5121
5122 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
5123
5124         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
5125         when MODE isn't BLKmode.
5126
5127 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
5128
5129         PR rtl-optimization/25367
5130         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
5131
5132 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
5133
5134         PR target/25718
5135         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
5136         for a negative bound.
5137
5138 2006-01-10  Richard Guenther  <rguenther@suse.de>
5139
5140         * tree-ssa-structalias.c (get_constraint_for_component_ref):
5141         Never override with anything constraint.
5142
5143 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5144
5145         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
5146         256 bits when optimize_size.
5147
5148 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5149
5150         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
5151         MASK_ALIGN_DOUBLE.
5152         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
5153         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
5154         arguments.
5155
5156 2006-01-10  Ben Elliston  <bje@au.ibm.com>
5157
5158         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
5159         float modes.
5160         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
5161         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
5162         (USE_FP_FOR_ARG): Reject decimal float modes.
5163         (function_arg_advance): Likewise.
5164         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
5165         (rs6000_handle_altivec_attribute): Do not permit decimal floating
5166         point types in AltiVec vectors.
5167         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
5168         (rs6000_libcall_value): Likewise.
5169
5170 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
5171
5172         * config/xtensa/ieee754-df.S: New file.
5173         * config/xtensa/ieee754-sf.S: New file.
5174         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
5175         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
5176         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
5177
5178 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
5179
5180         * config/sh/predicates.md (binary_float_operator,
5181         binary_logical_operator, commutative_float_operator,
5182         equality_comparison_operator, greater_comparison_operator,
5183         less_comparison_operator, logical_operator,
5184         noncommutative_float_operator, shift_operator,
5185         symbol_ref_operand, unary_float_operator): Remove redundant
5186         conditionals.
5187
5188 2006-01-09  Jeff Law  <law@redhat.com>
5189
5190         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
5191         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
5192         now unused arguments.  Callers updated.
5193         (eliminate_redundant_computations): Remove now unused arguments,
5194         callers updated.
5195         (local_fold): Remove, no longer used.
5196         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
5197         and moved to...
5198         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
5199         (simplify_cond): New function.
5200         (forward_propagate_into_cond): Call simplify_cond.
5201
5202 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
5203
5204         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
5205         (*vec_extractv2di_1_sse): New.
5206
5207 2006-01-09  Ben Elliston  <bje@au.ibm.com>
5208
5209         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
5210
5211 2006-01-08  Richard Guenther  <rguenther@suse.de>
5212
5213         * tree-ssa-structalias.c (get_constraint_for): Remove
5214         anyoffset argument.
5215         (get_constraint_for_component_ref): Likewise.
5216         (do_deref): Likewise.
5217         (get_constraint_for): Likewise.
5218         (do_structure_copy): Likewise.
5219         (handle_ptr_arith): Likewise.
5220         (find_func_aliases): Likewise.  Remove unused need_anyoffset
5221         variable.
5222
5223 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
5224             Kaz Kojima  <kkojima@gcc.gnu.org>
5225
5226         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
5227         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
5228         (EXTRA_CONSTRAINT_C16): Remove.
5229         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
5230         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
5231         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
5232         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
5233         constants of SHmedia.  Handle nested constant expressions of
5234         SHmedia correctly.
5235         (andcosts): Fix the costs for SHmedia constants.
5236         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
5237         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
5238         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
5239         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
5240         (movv4hi_i, movv2si_i): Likewise.
5241         (movsi_const): Adjust the second operand of ior so to match with
5242         the Csu constraint.
5243         (movdi_const, movdi_const_32bit): Likewise.
5244         (movdi_const_16bit+1): Don't sign-extend LOW.
5245         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
5246         step.
5247         (*double_shori): Fix the split condition.  Use GEN_INT instead
5248         of get_int_mode calls.  Mask lower 16-bit of the argument of
5249         the last GEN_INT.
5250         (sym2GOTPLT): Remove.
5251         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
5252         gen_rtx_UNSPEC.
5253         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
5254         instead of EXTRA_CONSTRAINT_C16.
5255
5256 2006-01-07  Ian Lance Taylor  <ian@airs.com>
5257             David Edelsohn  <edelsohn@gnu.org>
5258
5259         PR rtl-optimization/25662
5260         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
5261         for constant operands instead of simplify_gen_binary.
5262         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
5263         after trying simplify_binary_operation
5264
5265 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
5266
5267         * tree.c (iterative_hash_expr): Hash decls based on UID.
5268
5269 2006-01-06  Eric Christopher  <echristo@apple.com>
5270
5271         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
5272         (TARGET_UNWIND_EMIT): Fix spelling.
5273         * target.h (gcc_target): Add except_table_label.
5274         * except.c (output_function_exception_table): Use.
5275         * varasm.c (default_emit_except_table_label): New.
5276         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
5277         define.
5278         (asm_out): Add here.
5279         * output.h (default_emit_except_table_label): Prototype.
5280         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
5281         * config/darwin.c (darwin_emit_except_table_label): Define.
5282         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
5283
5284 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
5285
5286         PR tree-optimization/18527
5287         * tree-ssa-loop-niter.c (number_of_iterations_cond,
5288         number_of_iterations_special, number_of_iterations_exit):
5289         Move base and step of an iv to a single structure.  Add
5290         no_overflow flag, and use it in # of iterations analysis.
5291         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
5292         folded_casts argument.
5293         (simple_iv): Pass base and step in a structure.  Set no_overflow
5294         flag.
5295         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
5296         Evaluate expensiveness of computing # of iterations instead of
5297         the final expression.
5298         * tree-scalar-evolution.h (affine_iv): New structure.
5299         (simple_iv): Declaration changed.
5300         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
5301         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
5302         find_givs_in_stmt): Changed due to simple_iv change.
5303
5304 2006-01-06  Jeff Law  <law@redhat.com>
5305
5306         PR ada/24994
5307         * tree-cfg.c (bsi_replace): Rename final argument from
5308         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
5309         change (stmt -> orig_stmt).
5310         * tree-eh.c (verify_eh_throw_stmt_node): New function.
5311         (bsi_remove): Add new argument.  Remove EH information
5312         if requested.
5313         (verify_eh_throw_table_statements): New function.
5314         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
5315         updated.
5316         * tree-optimize.c (execute_free_cfg_annotations): Verify
5317         the EH throw statement table after removing annotations.
5318         * except.h (verify_eh_throw_table_statements): Prototype.
5319         * tree-flow.h (bsi_remove): Update prototype.
5320         * tree-vrp.c (remove_range_assertions): Add new argument to
5321         bsi_remove call.
5322         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
5323         * tree-complex.c (expand_complex_div_wide): Likewise.
5324         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
5325         * tree-tailcall.c (eliminate_tailcall): Likewise.
5326         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
5327         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
5328         * tree-nrv.c (tree_nrv): Likewise.
5329         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
5330         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
5331         (combine_blocks): Likewise.
5332         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
5333         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
5334         (cleanup_control_flow): Likewise.
5335         (remove_forwarder_block): Likewise.
5336         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
5337         * tree-sra.c (sra_replace): Likewise.
5338         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
5339         (forward_propagate_single_use_vars): Likewise.
5340         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
5341         * tree-inline.c (expand_call_inline): Likewise.
5342         * tree-vect-transform.c (vect_transform_loop): Likewise.
5343         * tree-outof-ssa.c (rewrite_trees): Likewise.
5344         * tree-cfg.c (make_goto_expr_edges): Likewise.
5345         (cleanup_dead_labels): Likewise.
5346         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
5347         (bsi_move_before, bsi_move_after): Likewise.
5348         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
5349         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
5350
5351 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
5352
5353         PR tree-opt/25528
5354         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
5355         and IMAGPART_EXPR.
5356         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
5357         on non gimple variables.  Also add checks at the top for decls and
5358         mtags.
5359         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
5360         complex types.
5361         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
5362         and IMAGPART_EXPR for creating MUST_DEFs.
5363         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
5364         and NAME_MEMORY_TAG separately from the DECLs.
5365
5366 2006-01-06  Richard Guenther  <rguenther@suse.de>
5367
5368         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
5369         annotation, if necessary.
5370         * tree-ssa-pre.c (create_expression_by_pieces): Remove
5371         redundant calls to update_stmt.
5372         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
5373         Likewise.
5374
5375 2006-01-05  Richard Henderson  <rth@redhat.com>
5376
5377         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
5378
5379 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5380
5381         * c-typeck.c: Update copyright date.
5382
5383 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5384
5385         * c-typeck.c (build_c_cast): Always warn when casting
5386         from a pointer to an integer of different size, even if
5387         the node was constant.
5388
5389 2006-01-05  Richard Guenther  <rguenther@suse.de>
5390
5391         PR tree-optimization/22555
5392         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
5393         if one structure field is an array.
5394         * tree-ssa-operands.c (get_expr_operands): Continue scanning
5395         operands even if we found a subvar, but ignore VOPs in this
5396         case.
5397         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
5398         for renaming.
5399         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
5400
5401 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
5402
5403         PR middle-end/24998
5404         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
5405
5406 2006-01-05  Richard Guenther  <rguenther@suse.de>
5407             Diego Novillo  <dnovillo@redhat.com>
5408
5409         * tree-pass.h (TODO_remove_unused_locals): Define.
5410         * gimple-low.c (expand_var_p, remove_useless_vars,
5411         pass_remove_useless_vars): Remove.  Update all users.
5412         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
5413         (remove_unused_locals): New function.
5414         * tree-flow.h (remove_unused_locals): Declare.
5415         * passes.c (execute_todo): Call remove_unused_locals if
5416         TODO_remove_unused_locals is set.
5417         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
5418         * tree-ssa-dce.c (pass_dce): Likewise.
5419         * tree-outof-ssa.c (pass_del_ssa): Likewise.
5420
5421 2006-01-05  Richard Guenther  <rguenther@suse.de>
5422
5423         * tree-flow.h (struct fieldoff): Decompose field to
5424         type, size and decl.
5425         * tree-ssa-alias.c (create_sft): Take type as parameter.
5426         (create_overlap_variables_for): Store type, size and decl
5427         in the fieldoff structure.
5428         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
5429         of struct fieldoff.
5430         (push_fields_onto_fieldstack): Likewise.
5431         (create_variable_info_for): Likewise.  Use offset for the
5432         SFT name if the decl is not available.
5433
5434 2006-01-04  Paul Brook  <paul@codesourcery.com>
5435
5436         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
5437
5438 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
5439
5440         * lambda-code.c (can_put_in_inner_loop): Relax
5441         restrictions.
5442         (can_put_after_inner_loop): New function.
5443         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
5444         (perfect_nestify): Change to make copies and modify uses.
5445
5446 2006-01-04  Richard Henderson  <rth@redhat.com>
5447
5448         Merge from gomp branch:
5449         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
5450         via integer constant.
5451         (pragma_lex): Remove.
5452         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
5453         rather than parsing it.
5454         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
5455         handle_pragma_extern_prefix): Add %< %> quotes.
5456         (registered_pragmas): New.
5457         (c_register_pragma_1): New.
5458         (c_register_pragma): Use it.
5459         (c_register_pragma_with_expansion): Likewise.
5460         (c_invoke_pragma_handler): New.
5461         (init_pragma): Use cpp_register_deferred_pragma directly for
5462         pch_preprocess.
5463         * c-pragma.h (enum pragma_kind): New.
5464         (pragma_handler): New.
5465         (c_invoke_pragma_handler): Declare.
5466         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
5467         CPP_PRAGMA_EOL.
5468         * c-common.h (c_common_pch_pragma): Update decl.
5469         * Makefile.in (c-parser.o): Update dependencies.
5470         (GTFILES): Add c-pragma.h.
5471         * c-parser.c (struct c_token): Add pragma_kind.
5472         (struct c_parser): Add in_pragma.
5473         (c_lex_one_token): Always initialize keyword and pragma_kind.
5474         Extract data for CPP_PRAGMA.
5475         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
5476         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
5477         Don't allow CPP_PRAGMA_EOL if in_pragma.
5478         (c_parser_consume_pragma): New.
5479         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
5480         (c_parser_skip_to_end_of_parameter): Likewise.
5481         (c_parser_skip_to_end_of_block_or_statement): Likewise.
5482         (c_parser_skip_to_pragma_eol): New.
5483         (c_parser_external_declaration): Handle CPP_PRAGMA.
5484         (c_parser_compound_statement_nostart): Likewise.
5485         (c_parser_statement_after_labels): Likewise.
5486         (c_parser_pragma): New.
5487         (pragma_lex): Likewise.
5488         (c_parser_pragma_pch_preprocess): New.
5489         (c_parser_new): Merge into ...
5490         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
5491
5492 2006-01-04  Jeff Law  <law@redhat.com>
5493
5494         PR ada/24994
5495         * tree-cfg.c (bsi_replace): Remove the original statement
5496         from the EH throw statement table.
5497
5498 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
5499
5500         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
5501         make the prototype extern "C" and add throw ().
5502
5503         PR target/25554
5504         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
5505         and pos non-negative and pos + len <= 32.
5506         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
5507         drop pos + len < HOST_BITS_PER_WIDE_INT test.
5508         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
5509
5510         PR c/25559
5511         * c-common.c (handle_vector_size_attribute): Reject zero vector size
5512         as well as sizes not multiple of component size.
5513
5514         PR debug/25562
5515         * function.c (instantiate_expr): New function.
5516         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
5517         walk its DECL_VALUE_EXPR with instantiate_expr.
5518
5519         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
5520         DW_OP_deref{,_size} if address isn't going to be added.
5521
5522 2006-01-04  Ben Elliston  <bje@au.ibm.com>
5523
5524         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
5525         * config/fp-bit.c: Likewise.
5526
5527 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
5528
5529         * dominance.c: Add comment about why we use DFS numbering
5530         of dominance tree.
5531
5532 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5533             Richard Henderson  <rth@redhat.com>
5534
5535         Merge from gomp-branch:
5536         * varasm.c (assemble_variable): Handle thread-local COMMON data.
5537         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
5538
5539 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
5540
5541         PR rtl-optimization/25578
5542         * combine.c (combine_simplify_rtx, force_to_mode): Don't
5543         pass a parameter to simplify_shift_const if changing ASHIFTRT
5544         to LSHIFTRT.
5545
5546 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
5547
5548         * builtins.c (get_builtin_sync_mem): New function.
5549         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
5550         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
5551         Call get_builtin_sync_mem to generate mem rtx.
5552
5553 2006-01-03  Richard Guenther  <rguenther@suse.de>
5554
5555         PR c/25183
5556         * stmt.c (add_case_node): Make sure to clear overflow flags
5557         from ranges.
5558
5559 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5560
5561         Merge from gomp-branch.
5562         * config/sparc/sync.md: New file.
5563         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
5564         UNSPECV_LDSTUB): New constants.
5565         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
5566         * config/sparc/predicates.md (memory_reg_operand): New predicate.
5567         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
5568         prototype.
5569
5570 2006-01-03  Roger Sayle  <roger@eyesopen.com>
5571
5572         * combine.c (reg_subword_p): New predicate to test whether the
5573         destination of a set refers to a subword/piece of a register.
5574         (try_combine): Generalize the code to merge the setting of a
5575         pseudo to a constant followed by a set of a subword of that
5576         register to a constant.
5577
5578 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
5579
5580         * basic-block.h (control_flow_graph): Change the type of
5581         x_label_to_block_map to VEC(basic_block,gc) *.
5582         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
5583         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
5584
5585         * tree-ssa-propagate.c (cfg_blocks): Change the type to
5586         VEC(basic_block,heap) *.
5587         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
5588         ssa_prop_fini): Adjust the uses of cfg_blocks.
5589
5590 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
5591
5592         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
5593         COMPONENT_REFs.
5594         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
5595         hashing trees instead of a pointer hash.
5596         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
5597         compare for MEM_EXPR.
5598
5599         PR rtl-optimization/25130
5600         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
5601         when comparing MEMs for GCSE
5602
5603 2006-01-03  Ben Elliston  <bje@au.ibm.com>
5604
5605         * targhooks.h (default_decimal_float_supported_p): Declare.
5606         * targhooks.c (default_decimal_float_supported_p): Define.
5607         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
5608         `default_decimal_float_supported_p'.
5609         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
5610
5611 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
5612
5613         * combine.c (apply_distributive_law <SUBREG>): Check
5614         TRULY_NOOP_TRUNCATION.
5615
5616 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
5617
5618         * dwarf2out.c (have_switched_text_section): Delete.
5619         (have_multiple_function_sections): New.
5620         (have_location_lists): Make 'bool'.
5621         (add_AT_loc_list): Use 'true' not '1'.
5622         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
5623         (output_loc_list): Use have_multiple_function_sections.
5624         (output_ranges): Likewise.
5625         (dwarf2out_begin_function): Set have_multiple_function_sections if
5626         necessary.
5627         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
5628         Check function_section rather than DECL_SECTION_NAME.
5629         (dwarf2out_finish): Use have_multiple_function_sections.
5630         Don't clear have_location_lists.
5631
5632 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
5633             Jan Hubicka  <jh@suse.cz>
5634
5635         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
5636         case of conditional jump jumping to the next instruction.
5637         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
5638         cases of conditional jump jumping to the next instruction.
5639
5640 2006-01-02  Jan Hubicka  <jh@suse.cz>
5641
5642         * i386.c (*_cost): Add COSTS_N_INSNS.
5643         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
5644
5645 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
5646
5647         PR target/25259
5648         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
5649
5650 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
5651
5652         * config/arm/arm.c (all_fpus): Fix comment typo.
5653         * config/darwin.c: Likewise.
5654         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
5655         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
5656         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
5657
5658 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
5659
5660         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
5661         (rs6000_split_compare_and_swapqhi): New.
5662         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
5663         (sync_compare_and_swapqhi_internal): New.
5664         * config/rs6000/rs6000-protos.h: Declare.