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2006-02-25 Thomas Koenig <Thomas.Koenig@online.de>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
2
3         * combine.c (gen_lowpart_or_truncate): Call
4         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
5
6 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
7
8         * doc/invoke.texi: Move -fopenmp description to "Options for
9         Code Generation".
10         Remove reference to -lgomp.
11
12 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
13
14         * doc/install.texi: Require GNU tar version 1.14.
15
16 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
17
18         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
19         * doc/invoke.texi (C++ Dialect Options): Document 
20         -fno-use-cxa-get-exception-ptr.
21         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
22         * configure: Regenerate.
23         * c.opt (fuse-cxa-get-exception-ptr): New.
24         * c-opts.c (c_common_handle_option): Handle
25         OPT_fuse_cxa_get_exception_ptr.
26         * c-common.c (flag_use_cxa_atexit): Update documentation.
27         (flag_use_cxa_get_exception_ptr): New.
28         * c-common.h (flag_use_cxa_get_exception_ptr): New.
29         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
30         documentation.
31         (C_COMMON_OVERRIDE_OPTIONS): New.
32
33 2006-02-24  Roger Sayle  <roger@eyesopen.com>
34
35         PR middle-end/24952
36         * combine.c (try_combine): Explicitly check whether GET_CODE is
37         a SET or a CLOBBER, instead on checking that it isn't a USE.
38
39 2006-02-24  Roger Sayle  <roger@eyesopen.com>
40
41         * fold-const.c (fold_comparison): New subroutine of fold_binary
42         containing transformations common to both the equality and
43         ordering relational operators, factored out of fold_binary.
44         (fold_binary): Separate out the equality operators (EQ_EXPR
45         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
46         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
47         transformations common to both.
48         (fold_div_compare): Fix latent bugs in the previously unreachable 
49         LT_EXPR and GE_EXPR cases.
50
51 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
52
53         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
54         decl libname for clog to __clog on AIX.
55
56         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
57
58 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
59
60         PR target/26453
61         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
62         output traceback table for thunks.  Localise rs6000_stack_info call.
63
64 2006-02-23  Roger Sayle  <roger@eyesopen.com>
65             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
66
67         * gthr-posix.h (__gthrw): Fix typo in comment.
68
69 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
70
71         * doc/cpp.texi (Character sets): Document that we do support
72         input files to be in any character set.
73
74 2006-02-23  Jeff Law  <law@redhat.com>
75
76         * tree.h (PHI_ARG_NONZERO): Remove.
77         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
78         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
79         node to the new node.
80
81         PR tree-optimization/26425
82         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
83         min/max, then assume its varying.
84
85 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
86
87         PR rtl-optimization/26316
88         * rtlanal.c (enum may_trap_p_flags): New.
89         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
90         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
91         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
92         (may_trap_after_code_motion_p): New function.
93         * loop-invariant.c (find_identical_invariants): Fix dump formating.
94         (find_invariant_insn): Use may_trap_after_code_motion_p.
95         * rtl.h (may_trap_after_code_motion_p): Declare.
96
97 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
98
99         * emit-rtl.c (immed_double_const): Cleanup.
100
101 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
102         
103         Fix PR tree-optimization/26376
104         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
105         remove assert.
106
107 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
108
109         PR middle-end/26412
110         * gimplify.c (omp_add_variable): Guard variable size decl test with
111         DECL_SIZE (decl) check.
112
113 2006-02-23  Richard Guenther  <rguenther@suse.de>
114
115         PR middle-end/26439
116         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
117         like aggregate types.
118
119 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
120
121         * configure.ac: Add --with{,out}-long-double-128 configure option.
122         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
123         * configure: Rebuilt.
124         * config.in: Rebuilt.
125         * doc/install.texi (Options specification): Document
126         --with-long-double-128.
127
128         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
129         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
130         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
131         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
132
133 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
134
135         * config/s390/s390.c (override_options): Handle
136         TARGET_DEFAULT_LONG_DOUBLE_128.
137
138         * config/alpha/alpha.c (override_options): Handle
139         TARGET_DEFAULT_LONG_DOUBLE_128.
140
141         * config/sparc/sparc.c (sparc_override_options): Handle
142         TARGET_DEFAULT_LONG_DOUBLE_128.
143
144 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
145
146         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
147         (real-install-headers-tar, real-install-headers-cpio)
148         (real-install-headers-cp): New targets.
149
150 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
151
152         * tree.h (variable_section): Delete.
153         * varasm.c (variable_section): Delete.
154
155 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
156
157         * install.texi: Add notes on install.texi2html.
158         (Building in parallel): Do not use footnotes.
159
160 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
161
162         PR libgomp/26234
163         * doc/install.texi (Configuration): Document --disable-libgomp.
164
165 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
166
167         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
168
169 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
170
171         * config/i386/sse.md (vec_extractv2df_1_sse): New.
172         (vec_extractv2df_0_sse): New.
173
174 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
175
176         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
177         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
178         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
179         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
180         to the result of the expression.
181         (def_cfa_1): Adjust.
182         (frame_pointer_cfa_offset): Rename to...
183         (frame_pointer_fb_offset): ... this.  Adjust all uses.
184         (convert_cfa_to_loc_list): Rename to...
185         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
186         Pass it on to build_cfa_loc.
187         (compute_frame_pointer_to_cfa_displacement): Rename to...
188         (compute_frame_pointer_to_fb_displacement): ... this.  New
189         offset parameter.  Use it in computation.
190         (gen_subprogram_die): Compute cfa_fb_offset with the new
191         macro, and use it to compute the fb loc list and the
192         displacement.
193
194 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
195
196         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
197         replaced with register_operand.
198         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
199         non-DREG is expensive.
200         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
201         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
202         involving memory.
203
204 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
205
206         * doc/install.texi2html: Use set -e.
207
208 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
209
210         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
211         (ASM_OUTPUT_SHARED_LOCAL): Delete.
212         * doc/invoke.texi (-fshared-data): Delete.
213         * common.opt (fshared-data): Delete.
214         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
215         (assemble_static_space): Remove #if 0 code.
216         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
217         (ASM_OUTPUT_SHARED_LOCAL): Poison.
218         * config/cris/cris.h: Remove FIXME.
219
220 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
221
222         * doc/sourcebuild.texi (Front End Directory): No more double-colon
223         hooks.
224
225 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
226
227         PR middle-end/26379
228         * combine.c (simplify_shift_const_1): Disable nested shifts
229         optimization for vector shifts.
230
231 2006-02-20  Roger Sayle  <roger@eyesopen.com>
232
233         PR tree-optimization/26361
234         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
235         of unsigned integer types.
236
237 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
238
239         * tree-chrec.c (eq_evolutions_p): New.
240         * tree-chrec.h (eq_evolutions_p): Declared.
241         * tree-data-ref.c: Fix formatting.
242         (datadep_stats, dependence_stats): New.
243         (gcd): Moved...
244         (print_direction_vector): New.
245         (dump_data_dependence_relation): Use print_direction_vector.
246         (object_analysis, create_data_ref): Handle COMPONENT_REF.
247         (compute_subscript_distance): Static.
248         (initialize_data_dependence_relation): Static.  Get the number
249         of loops surrounding the references from the callers, and initialize
250         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
251         base_object_differ_p analyzers.
252         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine, 
253         compute_overlap_steps_for_affine_1_2,
254         analyze_subscript_affine_affine): Count the classified dependences.
255         Print a message when a test failed.
256         (can_use_analyze_subscript_affine_affine): New. 
257         (analyze_siv_subscript): Compute the data dependences on symbolic
258         scevs that verify can_use_analyze_subscript_affine_affine.
259         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
260         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
261         Handle symbolic scevs.
262         (analyze_overlapping_iterations): Let symbolic affine scevs to be
263         analyzed.
264         (subscript_dependence_tester): Moved...
265         (build_classic_dist_vector, build_classic_dir_vector): Don't use 
266         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
267         DDR_SIZE_VECT instead of getting it in parameter.
268         (subscript_dependence_tester): ... here.  Take as a parameter 
269         loop_nest_depth.  Call build_classic_dist_vector and
270         build_classic_dir_vector.
271         (compute_affine_dependence): Update subscript_dependence_tester 
272         parameters.  Update datadep_stats counters.  Call 
273         compute_subscript_distance.
274         (compute_self_dependence): Save the dist and dir vectors.  Call 
275         compute_subscript_distance.
276         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
277         (compute_all_dependences): Reorder parameters as they were before
278         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
279         compute_subscript_distance.  Update the use of 
280         compute_affine_dependence and initialize_data_dependence_relation.
281         (find_data_references_in_loop): Handle COMPONENT_REF.
282         (compute_data_dependences_for_loop): Initialize dependence_stats.
283         Don't call build_classic_dist_vector and build_classic_dir_vector.
284         Update the parameters of initialize_data_dependence_relation and 
285         compute_all_dependences.  Print the statistics from datadep_stats.
286         (analyze_all_data_dependences): Static.  Not used until the pass for
287         checking the data dependences is contributed.
288         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
289         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
290         (initialize_data_dependence_relation, compute_affine_dependence, 
291         analyze_all_data_dependences, compute_subscript_distance): Removed.
292         (print_direction_vector): New.
293         * lambda.h (gcd): ... here.
294         (lambda_vector_gcd): Moved here from gcd_vector.
295         * lambda-code.c (gcd, gcd_vector): Removed.
296         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
297         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
298
299 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
300
301         * ipa-type-escape.c: Tidy some comments and white space.
302         * tree-ssa-operands.c: Likewise.
303
304 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
305
306         PR tree-opt/25879
307         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
308         (dump_decl_name): Do not walk the decl tree chains.
309         * tree-pass.h (TDF_CHAIN): Remove.
310
311 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
312
313         * Makefile.in (C): Remove
314         (PROTO): Remove
315         (.PHONY): Remove C and PROTO
316
317 2006-02-20  Roger Sayle  <roger@eyesopen.com>
318
319         PR middle-end/26236
320         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
321         deprecated CHAR_TYPE tree code.
322
323 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
324
325         * configure.ac (target_list): Add install-info, dvi, html.
326         * configure: Regenerate.
327
328         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
329         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
330         treelang/Make-lang.in: Do not use double-colon rules.
331
332 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
333
334         * tree.h (struct tree_memory_tag): Add is_used_alone member.
335         (TMT_USED_ALONE): New macro.
336         * tree-pass.h (PROP_tmt_usage): New property.
337         (TODO_update_tmt_usage): New todo.
338         * tree-ssa-alias.c (updating_used_alone): New variable.
339         (recalculate_used_alone): New function.   
340         (compute_may_aliases): Set updating_used_alone, call
341         recalculate_used_alone. 
342         * tree-sra.c (pass_sra): Note that this pass destroys
343         PROP_tmt_usage, and add TODO_update_tmt_usage.
344         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
345         * tree-flow.h (updating_used_alone): Prototype.
346         (recalculate_used_alone): Ditto.
347         * passes.c (execute_todo): Add code to set updating_used_alone,
348         and call recalculate.
349         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
350         for clobber if used alone, and add assert to verify used_alone
351         status.
352         
353 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
354
355         * config/s390/s390.c (legitimize_pic_address): Assertions checking
356         for non tls symbols added.
357         (legitimize_address): Do nothing for PLUS expressions if one of the
358         addends is a tls symbol reference.
359
360 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
361
362         PR bootstrap/25476
363
364         * Makefile.in (LDFLAGS): Define from autoconf substitution.
365
366         * Makefile.in (BOOTSTRAPPING): New.
367         (quickstrap): New definition if BOOTSTRAPPING=yes.
368
369         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
370         * configure.ac: Substitute all_selected_languages with the languages
371         that were configured.  For all the other variables except
372         lang_specs_files, include all the languages in the tree.
373         * configure: Regenerate.
374         
375         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
376         if there is one.  Run the commands to run fixincludes in the same
377         subshell.
378
379         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
380         * doc/install.texi: Document exact conventions for searching target tools.
381         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
382         something more about building an Ada cross-compiler.  Don't list GNU Make
383         requirements which affect all platforms.
384
385 2006-02-19  Roger Sayle  <roger@eyesopen.com>
386
387         PR middle-end/19543
388         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
389         only equivalent if the have both the same mode and precision.
390
391 2006-02-20  Ben Elliston  <bje@au.ibm.com>
392
393         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
394
395 2006-02-19  Roger Sayle  <roger@eyesopen.com>
396             Steven Bosscher  <stevenb.gcc@gmail.com>
397
398         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
399         constant pool references to identify stack mode constants.
400         * rtlanal.c (constant_pool_constant_p): New predicate to check
401         whether operand is a floating point constant in the pool.
402         * rtl.h (constant_pool_constant_p): Prototype here.
403         * loop.c (scan_loop): Avoid hoisting constants from the constant
404         pool on STACK_REGS targets.
405         (load_mems): Likewise.
406         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
407         loads into x87 registers expensive in terms of register pressure.
408
409 2006-02-19  Roger Sayle  <roger@eyesopen.com>
410
411         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
412         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
413
414 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
415
416         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
417         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
418
419 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
420
421         * doc/invoke.texi: Document -fipa-pta.
422         * common.opt: Add ipa-pta option.
423         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
424         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
425         (do_ds_constraint): Ditto.
426         (get_constraint_for): Only add to referenced_vars if
427         referenced_vars exists.
428         (insert_into_field_list): Rewrite to do this unsorted.
429         (insert_into_field_list_sorted): Rename old insert_into_field_list
430         to this.
431         (create_function_info_for): Use insert_into_field_list_sorted.
432         (create_variable_info_for): Rewrite so it uses unsorted version,
433         since the field list is sorted.
434         (intra_create_variable_infos): Only add to referenced_vars if
435         referenced_vars exists.
436         (ipa_pta_execute): Init heapvars, and delete when done.
437         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
438
439 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
440
441         * doc/install.texi: Add missing `@samp'.
442
443 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
444
445         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
446         Use the arguments.
447
448 2006-02-18  Mark Wielaard  <mark@klomp.org>
449
450         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
451         who added new 4.1 features, bug fixes and integration support.
452
453 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
454
455         PR target/26350
456         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
457         MEM for ABI_V4 pic.
458
459 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
460
461         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
462         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
463         (copy_insn_1): Likewise.  Don't copy each field individually.
464         Reindent.
465         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
466         of RTX_SIZE.
467         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
468         * rtl.c (rtx_size): Rename variable to...
469         (rtx_code_size): ...this.
470         (rtx_size): New function.
471         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
472         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
473         Reindent.
474         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
475         * rtl.h (rtx_code_size): New variable.
476         (rtx_size): Change from a variable to a function.
477         (RTX_SIZE): Rename to...
478         (RTX_CODE_SIZE): ...this.
479
480         PR target/9703
481         PR tree-optimization/17106
482         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
483         (Anchored Addresses): New section.
484         * doc/invoke.texi (-fsection-anchors): Document.
485         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
486         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
487         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
488         * hooks.c (hook_bool_mode_rtx_false): New function.
489         * hooks.h (hook_bool_mode_rtx_false): Declare.
490         * gengtype.c (create_optional_field): New function.
491         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
492         SYMBOL_REF_IN_BLOCK_P is true.
493         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
494         (min_anchor_offset, max_anchor_offset): Likewise.
495         (use_anchors_for_symbol_p): New hook.
496         * toplev.c (compile_file): Call output_object_blocks.
497         (target_supports_section_anchors_p): New function.
498         (process_options): Check that -fsection-anchors is only used on
499         targets that support it and when -funit-at-a-time is in effect.
500         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
501         if the decl doesn't have one.
502         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
503         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
504         of force_const_mem through use_anchored_address.
505         (expand_expr_constant): New function.
506         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
507         calling expand_expr for INDIRECT_REF.
508         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
509         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
510         * expr.h (use_anchored_address): Declare.
511         * loop-unroll.c: Don't declare rtx vectors here.
512         * explow.c: Include output.h.
513         (validize_mem): Call use_anchored_address.
514         (use_anchored_address): New function.
515         * common.opt (-fsection-anchors): New switch.
516         * varasm.c (object_block_htab, anchor_labelno): New variables.
517         (hash_section, object_block_entry_eq, object_block_entry_hash)
518         (use_object_blocks_p, get_block_for_section, create_block_symbol)
519         (use_blocks_for_decl_p, change_symbol_section): New functions.
520         (get_variable_section): New function, split out from assemble_variable.
521         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
522         use_blocks_for_decl_p say so.  Use change_symbol_section if the
523         symbol has already been created.
524         (assemble_variable_contents): New function, split out from...
525         (assemble_variable): ...here.  Don't output any code for
526         block symbols; just pass them to place_block_symbol.
527         Use get_variable_section and assemble_variable_contents.
528         (get_constant_alignment, get_constant_section, get_constant_size): New
529         functions, split from output_constant_def_contents.
530         (build_constant_desc): Create a block symbol if use_object_blocks_p
531         says so.  Or into SYMBOL_REF_FLAGS.
532         (assemble_constant_contents): New function, split from...
533         (output_constant_def_contents): ...here.  Don't output any code
534         for block symbols; just pass them to place_section_symbol.
535         Use get_constant_section and get_constant_alignment.
536         (force_const_mem): Create a block symbol if use_object_blocks_p and
537         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
538         (output_constant_pool_1): Add an explicit alignment argument.
539         Don't switch sections here.
540         (output_constant_pool): Adjust call to output_constant_pool_1.
541         Switch sections here instead.  Don't output anything for block symbols;
542         just pass them to place_block_symbol.
543         (init_varasm_once): Initialize object_block_htab.
544         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
545         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
546         (place_block_symbol, get_section_anchor, output_object_block)
547         (output_object_block_htab, output_object_blocks): New functions.
548         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
549         (TARGET_ASM_OUT): Include it.
550         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
551         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
552         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
553         (TARGET_INITIALIZER): Include them.
554         * rtl.c (rtl_check_failed_block_symbol): New function.
555         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
556         (block_symbol, object_block): New structures.
557         (rtx_def): Add a block_symbol field to the union.
558         (BLOCK_SYMBOL_CHECK): New macro.
559         (rtl_check_failed_block_symbol): Declare.
560         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
561         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
562         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
563         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
564         * output.h (output_section_symbols): Declare.
565         (object_block): Name structure.
566         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
567         (default_use_anchors_for_symbol_p): Declare.
568         * Makefile.in (RTL_BASE_H): Add vec.h.
569         (explow.o): Depend on output.h.
570         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
571         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
572         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
573         (rs6000_use_blocks_for_constant_p): New function.
574
575 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
576
577         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
578
579 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
580
581         PR tree-opt/25680
582         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
583         IMAGPART_EXPR.
584
585 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
586
587         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
588         is_aliased.
589         Update all users.
590
591 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
592
593         PR middle-end/26334
594         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
595         instead of DECL_REGISTER.
596
597 2006-02-18  Olivier Hainque  <hainque@adacore.com>
598
599         PR ada/13408
600         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
601
602 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
603
604         PR target/24837
605         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
606         * opth-gen.awk: Handle Var and InverseMask together.
607         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
608         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
609         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
610         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
611         used together.
612         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
613         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
614         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
615         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
616         LINUX_DYNAMIC_LINKER): Define.
617         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
618         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
619         TARGET_GLIBC.
620         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
621         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
622         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
623         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
624         (TARGET_C99_FUNCTIONS): Don't define.
625         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
626         GLIBC_DYNAMIC_LINKER.
627         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
628         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
629         GLIBC_DYNAMIC_LINKER64): Define.
630         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
631         LINUX_DYNAMIC_LINKER64.
632         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
633         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
634         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
635         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
636         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
637         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
638         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
639         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
640         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
641         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
642         and LINUX_DYNAMIC_LINKER32.
643         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
644         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
645         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
646         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
647         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
648         TARGET_GLIBC.
649         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
650         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
651         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
652         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
653         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
654         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
655         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
656         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
657         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
658         LINUX_DYNAMIC_LINKER): Define.
659         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
660         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
661         GLIBC_DYNAMIC_LINKER64): Define.
662         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
663         LINUX_DYNAMIC_LINKER64.
664         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
665         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
666         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
667         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
668         LINUX_DYNAMIC_LINKER): Define.
669         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
670         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
671         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
672         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
673         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
674         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
675         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
676         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
677         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
678         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
679         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
680         * doc/invoke.texi (-muclibc): Remove caveat about supported
681         targets.
682
683 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
684
685         * doc/cpp.texi (__TIMESTAMP__): Document.
686
687 2006-02-17  Roger Sayle  <roger@eyesopen.com>
688
689         PR middle-end/25600
690         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
691         C is one less than the width of X (and related transformations).
692         * simplify_rtx.c (simplify_unary_operation_1): Transform 
693         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
694         depending on STORE_FLAG_VALUE, were C is one less then the
695         width of X.
696
697 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
698
699         Fix PR tree-optimization/26341
700         * tree-ssa-operands.c (add_virtual_operand): Remove assert 
701         about NAME_MEMORY_TAG's.
702
703 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
704
705         PR target/26255
706         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
707         with hardware float support, and software float support.  Add fcpy
708         alternative to hardware patterns.  Add alternatives to copy between
709         general and floating-point registers to the 32-bit pattern.
710         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
711         secondary reload to load a QI or HI mode constant into a floating
712         point register. 
713         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
714         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
715
716 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
717
718         PR target/26272
719         * config/rs6000/darwin.md (load_macho_picbase_si): Add
720         pc to the pattern.
721         (load_macho_picbase_di): Likewise.
722
723 2006-02-16  Jeff Law  <law@redhat.com>
724
725         * tree-vrp.c (set_value_range_to_nonnegative): New function.
726         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
727         (ssa_name_nonzero_p): Likewise.
728         (get_value_range): Return NULL if VRP is not running.
729         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
730         VRP routines do not discover a range.
731         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
732         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
733         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
734         (tree_expr_nonnegative_p): Similarly.
735         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
736         (restore_nonzero_vars_to_original_value): Remove.
737         (unsafe_associative_fp_binop): Remove.
738         (tree_ssa_dominator_optimize): Remove initialization and
739         finalization of nonzero_vars and nonzero_vars_stack.
740         (dom_opt_initialize_block): No longer push marker on
741         nonzero_vars_stack.
742         (dom_opt_finalize_block): No longer call
743         restore_nonzero_vars_to_original_value.
744         (record_equivalences_from_phis): No longer look for
745         nonzero PHI arguments.
746         (cprop_into_successor_phis): No longer propagate nonzero
747         property into PHI arguments.  Lose unused argument.  Caller
748         updated.
749         (record_equivalences_from_stmt): No longer record nonzero
750         values for SSA_NAMEs.
751         (lookup_avail_expr): No longer use nonzero_vars.
752
753         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
754         for sizetype when sizetype is unsigned.
755
756 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
757
758         PR rtl-optimization/25603
759         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
760         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
761         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p 
762         with new meaning of SETS.
763
764 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
765
766         PR target/20353
767         PR target/24578
768         PR target/24837
769         * config/linux.opt: New file.
770         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
771         LINUX_DYNAMIC_LINKER): Define.
772         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
773         * config.gcc (*-*-linux*): Define extra_options.
774         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
775         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
776         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
777         GLIBC_DYNAMIC_LINKER.
778         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
779         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
780         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
781         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
782         * doc/invoke.texi (GNU/Linux Options): New section.
783
784 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
785
786         * config/sparc/sparc.md (setjmp): Rewrite.
787         (setjmp_32): Delete.
788         (setjmp_64): Likewise.
789
790 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
791
792         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
793          previous change.
794
795 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
796
797         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
798         read-write uses.
799
800 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
801
802         PR rtl-optimization/26296
803         * Makefile.in (loop-invariant.c): Add except.h dependency.
804         * loop-invariant.c: Include except.h.
805         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
806
807 2005-02-16  Paul Brook  <paul@codesourcery.com>
808
809         * reload1.c (emit_reload_insns): Invalidate dead input registers used
810         for reloads.
811
812 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
813
814         PR rtl-optimization/25636
815         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
816         when deciding whether an insn is an initializing insn.
817
818 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
819
820         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
821         (tree_code_size): Ditto.
822         * tree.h (struct tree_memory_tag): Remove parent_var.
823         (struct tree_struct_field_tag): New.
824         (SFT_OFFSET): New.
825         (SFT_SIZE): New.
826         (union tree_node): Add sft member.
827         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
828         specially here.
829         (create_sft): Add size and offset argument, set SFT_OFFSET and
830         SFT_SIZE.
831         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
832         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
833         * tree-flow-inline.h (get_subvar_at): Update for
834         SFT_OFFSET/SFT_SIZE.
835         (var_can_have_subvars): Ditto.
836         (overlap_subvar): Ditto.
837         * print-tree.c (print_node): Print out interesting things for
838         SFT's.
839         * tree-flow.h (struct subvar): Remove offset and size members.
840         * tree-ssa-operands.c (get_expr_operands): Update for
841         get_indirect_ref_operands changes.
842         (get_indirect_ref_operands): Call add_virtual_operand instead of
843         add_stmt_operand.  Only recurse on base var if requested.
844         (access_can_touch_variable): New function.
845         (add_stmt_operand): Split virtual operand handling into ...
846         (add_virtual_operand): Here.  Add offset, size, and for_clobber
847         arguments.  Prune alias sets.
848         (add_call_clobber_ops): Call add_virtual_operand.
849         
850 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
851
852         PR middle-end/26300
853         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
854
855         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
856         than TREE_CODE as index into omp_clause_num_ops array.
857
858 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
859
860         PR rtl-optimization/26184
861         * modulo-sched.c (generate_reg_moves): Free bitmap vector
862         uses_of_defs.
863         * modulo-sched.c (sms_schedule): Free g_arr pointer.
864         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
865         must_precede, must_follow and tobe_scheduled.
866
867         PR other/26147
868         * opts.c (common_handle_option): Free new_option pointer.
869         * df-core.c (df_analyze): Free postorder pointer.
870
871 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
872
873         * Makefile.in: Fix the examples about the use of stamps
874
875 2006-02-15  Michael Matz  <matz@suse.de>
876
877         PR middle-end/22275
878
879         * stor-layout.c (layout_decl): Zero-width bitfields aren't
880         influenced by maximum_field_alignment or DECL_PACKED.
881         (update_alignment_for_field): Ditto.
882         (place_field): Ditto.
883         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
884         this behaviour.
885
886 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
887
888         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
889         (debug_flow_info): Pass it.
890         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
891         * bb-reorder.c (reorder_basic_blocks): Likewise.
892         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
893         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
894         * flow.c (life_analysis, recompute_reg_usage): Likewise.
895         * gcse.c (gcse_main, bypass_jumps): Likewise.
896         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
897         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
898         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
899         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
900         * rtl.h (dump_flow_info): Adjust prototype.
901         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
902         * var-tracking.c (variable_tracking_main): Likewise.
903         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
904         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
905         options.
906
907 2006-02-15  Marcin Dalecki <martin@dalecki.de>
908
909         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
910         construction.
911
912 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
913
914         PR tree-optimization/26209
915         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
916         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
917         eh edges.
918         * tree-cfg.c (replace_uses_by): Do not alter cfg.
919
920 2006-02-14  Roger Sayle  <roger@eyesopen.com>
921
922         PR middle-end/23670
923         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
924         (X,Y) and the corresponding symmetry related transformations.
925         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
926         (X,Y) and its symmetry related transformations.
927
928 2006-02-14  Roger Sayle  <roger@eyesopen.com>
929
930         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
931         and GEU.
932
933 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
934
935         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
936
937 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
938
939         PR bootstrap/26053
940         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
941         support COMDAT group.
942         * configure: Regenerate.
943
944 2006-02-14  Roger Sayle  <roger@eyesopen.com>
945
946         PR middle-end/26279
947         PR middle-end/26280
948         PR middle-end/26283
949         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
950
951 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
952
953         Fix PR tree-optimization/26260
954
955         * doc/invoke.texi (max-fields-for-field-sensitive): Document
956         param.
957         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
958         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
959         * tree-ssa-structalias.c (create_variable_info_for): Use
960         MAX_FIELDS_FOR_FIELD_SENSITIVE.
961         
962 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
963
964         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
965         Document.
966         * tree-ssa-loop-niter.c (number_of_iterations_ne,
967         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
968         of the ending condition.
969         * tree-ssa-loop-manip.c: Include params.h.
970         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
971         tree_unroll_loop): New functions.
972         * tree-pass.h (pass_loop_prefetch): Declare.
973         * loop.c (rest_of_handle_loop_optimize): Test for
974         -fprefetch-loop-arrays-rtl.
975         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
976         * timevar.def (TV_TREE_PREFETCH): New timevar.
977         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
978         pass_loop_prefetch): New.
979         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
980         (cleanup_tree_cfg_loop): Call scev_reset.
981         * common.opt (fprefetch-loop-arrays-rtl): Add.
982         * tree-ssa-loop-prefetch.c: New file.
983         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
984         (new_temp_expr_table): Initialize expr_vars.
985         (free_temp_expr_table): Cleanup expr_vars.
986         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
987         expressions from being merged into one.
988         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
989         (struct tree_niter_desc): Add control, bound and cmp fields.
990         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
991         Declare.
992         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
993         (tree-cfgcleanup.o): Add SCEV_H dependency.
994         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
995         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
996
997 2006-02-14  Richard Guenther  <rguenther@suse.de>
998
999         PR tree-optimization/26258
1000         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1001         in PHI argument processing.
1002
1003 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1004
1005         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1006         new expression in the requested machine mode.
1007
1008 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1009
1010         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1011         directly, instead let do_compare_rtx_and_jump handle this for us.
1012         * expr.c (expand_expr_real_1): Likewise.
1013         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1014         before do_jump_by_parts_greater.
1015         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1016         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1017
1018 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1019
1020         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1021
1022 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1023
1024         PR rtl-optimization/26235
1025         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1026         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1027         format.
1028
1029 2006-02-13  Jeff Law  <law@redhat.com>
1030
1031         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1032         TRUTH_XOR_EPR.
1033
1034 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1035
1036         PR middle-end/26092
1037         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1038         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1039         first to verify it is still a builtin.
1040
1041 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1042
1043         * dwarf2out.c (base_type_die): Don't add AT_name here.
1044         (subrange_type_die): Don't add AT_name here.
1045         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1046
1047 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1048
1049         PR rtl-optimization/26247
1050         PR rtl-optimization/26248
1051         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
1052
1053 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
1054
1055         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
1056         * config/fixtfdi.c: Likewise.
1057         * config/fixunstfdi.c: Likewise.
1058         * config/floatditf.c: Likewise.
1059
1060 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1061
1062         PR middle-end/24427
1063         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
1064         into (X,C2) if C1 is a subset of the bits of C2.  Transform
1065         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
1066         (X&(C1&~C2))|C2.
1067         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1068
1069 2006-02-13  Josh Conner  <jconner@apple.com>
1070
1071         PR target/25376
1072         * varasm.c (function_section): Check for section name before
1073         calling select_section on targets that define
1074         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1075         unlikely_text_section instead of hot_function_section if
1076         first_function_block_is_cold.
1077
1078 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1079
1080         PR middle-end/25335
1081         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1082
1083 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1084
1085         PR rtl-optimization/26222
1086         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1087         after tree->rtl expansion.
1088         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1089         before passing it to emit_move_insn.
1090
1091 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1092
1093         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1094         default. 
1095         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1096         Clarify documentation.
1097         * c-common.h (warn_write_strings): Remove.
1098         * c-common.c (warn_write_strings): Likewise.
1099         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1100         default for C++.
1101
1102 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1103
1104         PR middle-end/25724
1105         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1106         (do_jump_parts_zero_rtx): New function renamed from
1107         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1108         (do_jump_parts_equality_rtx): New function split out from
1109         do_jump_parts_equality.  Old implementation renamed as above.
1110         Call do_jump_parts_zero_rtx if either operand is zero.
1111         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1112         do all of the heavy lifting.
1113         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1114         calling either do_jump_by_parts_greater_rtx or
1115         do_jump_by_parts_equality_rtx.
1116         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1117         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1118         moved to do_compare_rtx_and_jump, call it directly.
1119         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1120         mode argument.  Call do_compare_rtx_and_jump.
1121         (emit_case_nodes): Update calls to do_jump_if_equal.
1122
1123 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1124
1125         PR rtl-optimization/26225
1126         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1127
1128 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1129
1130         PR rtl-optimization/26232
1131         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1132
1133 2006-02-11  Jason Merrill  <jason@redhat.com>
1134
1135         PR tree-opt/24365
1136         * tree-inline.c (declare_return_variable): Just don't use the
1137         modify target if it's a gimple complex reg and the return slot
1138         isn't.
1139
1140 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1141
1142         * doc/contrib.texi: Update my entry.
1143
1144 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1145
1146         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1147
1148 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1149
1150         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1151         expensive.
1152
1153 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1154
1155         * doc/invoke.texi (-floop-optimize2): Removed.
1156         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1157         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1158         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1159         * common.opt (floop-optimize2): Removed.
1160         (fmove-loop-invariants): Enabled by default.
1161
1162 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1163
1164         * tree-if-conv.c (combine_blocks): Free the result of
1165         get_loop_exit_edges.
1166
1167 2006-02-10  Jeff Law  <law@redhat.com>
1168
1169         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1170
1171         PR tree-optimization/26213
1172         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1173         loop trying to follow SSA_NAME_VALUE chains.
1174
1175 2006-02-10  Richard Guenther  <rguenther@suse.de>
1176
1177         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1178         deal with structures that end in implicitly variable sized arrays.
1179
1180 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1181
1182         PR rtl-optimization/24762
1183         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1184         eh edges.
1185
1186 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1187
1188         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1189         (struct ivopts_data): Add regs_used field.
1190         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1191         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1192         instead of loop_data->regs_used;
1193         (free_loop_data): Do not free aux fields for loops.
1194         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1195         and tree_ssa_iv_optimize_finalize.
1196
1197 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1198
1199         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1200
1201 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1202
1203         PR target/26141
1204         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1205         computing the effective result type.
1206
1207 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1208
1209         PR inline-asm/16194
1210         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1211         (tree_overlaps_hard_reg_set): Declare.
1212         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1213         type and signature to match function type expected by walk_tree.
1214         (tree_overlaps_hard_reg_set): New function.
1215         (decl_conflicts_with_clobbers_p): Rename to:
1216         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1217         Use tree_overlaps_hard_reg_set.  Changed caller.
1218         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1219         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1220         * cris.c (cris_md_asm_clobbers): Likewise.
1221
1222 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1223
1224         * reload1.c (emit_input_reload_insns): Delete code that tries to
1225         inherit using find_equiv_reg.
1226
1227 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1228
1229         * c-common.h (flag_const_strings): Don't declare.
1230         * c-common.c (flag_const_strings): Remove.
1231         * c.opt (fconst_strings): Remove.
1232         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
1233         <OPT_Wwrite_strings>: Don't set flag_const_strings.
1234         (c_common_init_options): Don't set flag_const_strings.
1235         * doc/invoke.texi (-fno-const-strings): Remove documentation.
1236
1237 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
1238
1239         * arm.md (tlobits_cbranch): New pattern.
1240         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
1241         testing a single bit.
1242
1243 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1244
1245         PR tree-opt/26179
1246         * tree-ssa-pre.c (create_component_ref_by_pieces):
1247         Handle RETURN_DECL like VAR_DECL.
1248
1249 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1250
1251         PR middle-end/26134
1252         * fold-const.c (fold_indirect_ref_1): Fold 
1253         "*(foo *)&complexfoo" to "__real__ complexfoo"
1254         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
1255
1256 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1257
1258         * tree-flow-inline.h (var_can_have_subvars): 
1259         Volatile variables should not have subvariables.
1260
1261 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
1262
1263         PR 26180
1264         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
1265         multiplying unsigned values.
1266         Tidy comments.
1267
1268 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
1269
1270         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
1271
1272 2006-02-08  Jason Merrill  <jason@redhat.com>
1273
1274         PR c++/25979
1275         * tree.def: Elaborate on difference from MODIFY_EXPR.
1276         * doc/c-tree.texi (INIT_EXPR): Likewise.
1277         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
1278         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
1279         (gimplify_target_expr): Likewise.
1280         (gimplify_cond_expr): Remove target handling.
1281         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
1282         (gimplify_expr): Clobber it here.
1283         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
1284         Do return slot optimization if we have an INIT_EXPR.
1285
1286         PR tree-opt/24365
1287         * tree-inline.c (declare_return_variable): Also clear 
1288         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
1289
1290         PR c++/16405
1291         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
1292
1293         PR middle-end/22439
1294         * gimplify.c (gimplify_one_sizepos): Fix typo.
1295
1296 2006-02-08  Jeff Law  <law@redhat.com>
1297
1298         PR tree-optimization/21417
1299         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
1300         across a backedge if the control statement at the end of the
1301         block is data dependent on other statements in the same block.
1302         (record_temporary_equivalences_from_stmts): Remove over-conservative
1303         test for threading across backedges.
1304
1305         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
1306         control statement, handle all three special cases in the same
1307         manner as they all have the same desired solution.  No longer
1308         special case edge flag updating when the post dominator is
1309         the exit block.
1310
1311 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1312
1313         * tree.def (CHAR_TYPE): Remove.
1314         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
1315         * dwarf2out.c (base_type_die, is_base_type): Likewise.
1316         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
1317         (gen_string_type_die): Delete unreachable function.
1318
1319         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
1320         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
1321         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
1322         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
1323         * builtins.c (type_to_class): Likewise.
1324         * fold-const.c (fold_convert, build_range_check,
1325         merge_ranges): Likewise.
1326         * expr.c (count_type_elements): Likewise.
1327         * c-pretty-print.c (pp_c_type_specifier): Likewise.
1328         * stor-layout.c (layout_type): Likewise.
1329         * ipa-type-escape.c (type_to_consider): Likewise.
1330         * gimplify.c (omp_firstprivatize_type_sizes,
1331         gimplify_type_sizes): Likewise.
1332         * explow.c (promote_mode): Likewise.
1333         * tree-sra.c (is_sra_scalar_type): Likewise.
1334         * varasm.c (output_constant): Likewise.
1335         * tree-inline.c (remap_type_1): Likewise.
1336         * convert.c (convert_to_pointer, convert_to_real,
1337         convert_to_integer, convert_to_complex): Likewise.
1338
1339 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
1340
1341         * df-scan.c (df_def_record_1): A set destination may
1342         be a parallel regardless of mode.
1343
1344 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1345
1346         PR target/22209
1347         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
1348         * config/mips/_tilib.c: Remove.
1349         * config/fixtfdi.c: New libgcc source file.
1350         * config/fixunstfdi.c: New source file.
1351         * config/floatditf.c: New source file.
1352         * config/floatunditf.c: New souce file.
1353         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
1354         files above instead of config/mips/_tilib.c.
1355         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
1356
1357 2006-02-08  Jeff Law  <law@redhat.com>
1358
1359         PR tree-optimization/26169
1360         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
1361         threading jumps.
1362
1363 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
1364
1365         * df.h (DF_REG_SIZE): Return the length of the initialized
1366         part of the array.
1367
1368 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
1369
1370         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
1371         __muldf3): Return a correctly signed zero.
1372
1373 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
1374
1375         * passes.c (register_one_dump_file): Accept the current properties
1376         instead of pass number.  Adjust call to dump_register.  Remove
1377         duplicated code.
1378         (register_dump_files): Now a wrapper around...
1379         (register_dump_files_1): ... this one.  Do not modify the pass
1380         structure.
1381         (next_pass_1): Cosmetic fix.
1382         (execute_todo): Keep second parameter only.  Use curr_properties
1383         instead of fetching it from the pass structure.  Check and set
1384         last_verified.
1385         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
1386         instead of fetching it from the pass structure.  Fix calls to
1387         execute_todo.  Update curr_properties and initialize .vcg RTL dump
1388         after running the pass.  Reset last_verified.
1389         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
1390         at the beginning.
1391         (FIRST_AUTO_NUMBERED_DUMP): New.
1392         (dump_register): Remove "num" parameter, assign it within the
1393         function.
1394         (get_dump_file_name): Modify template for dumps.
1395         * tree-dump.h (dump_register): Adjust prototype.
1396         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
1397         (PROP_trees): Add PROP_gimple_lomp.
1398         (TODO_set_props): New.
1399         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
1400         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
1401         * cfgexpand.c (pass_expand): Destroy PROP_trees.
1402
1403 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
1404
1405         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
1406         (sparc64-*-linux*): Likewise.
1407         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
1408         * config/sparc/t-linux: New file.
1409         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
1410         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
1411         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
1412         -m32 -mlong-double-128.
1413
1414         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
1415         * config/alpha/t-linux: New file.
1416         * config/alpha/libgcc-alpha-ldbl.ver: New file.
1417
1418         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
1419         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
1420         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
1421         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
1422         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
1423         (CPP_ARCH32_SPEC): Remove.
1424
1425 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
1426
1427         PR tree-optimization/26145
1428         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
1429         bbs pointer.
1430
1431 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1432
1433         PR target/26109
1434         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
1435         >= 240000 when generating code for SOM runtime.
1436         (output_indirect_call): Don't use "b,l" instruction for indirect calls
1437         to $$dyncall when generating code for SOM runtime..
1438
1439 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1440
1441         PR c++/18150
1442         * doc/invoke.texi (-Wsequence-point): Update documentation
1443         that -Wsequence-point is implemented for C++ as well.
1444
1445 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1446
1447         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
1448         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
1449         (LIB_SPEC): Likewise.
1450         * doc/invoke.texi (SPARC options): Document -pthread.
1451
1452 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
1453
1454         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
1455         PIC addresses.
1456
1457 2006-02-07  Roger Sayle  <roger@eyesopen.com>
1458
1459         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
1460         Correct comment describing BOOLEAN_TYPE.
1461
1462 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1463
1464         * c.opt: C++ frontend supports -Wdiv-by-zero.
1465         * c-opts.c (c_common_handle_option): Remove dead case.
1466
1467 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1468
1469         * configure.ac (TLS assembler check): Do not enable TLS by
1470         default on SPARC/Solaris before version 10.
1471         * configure: Regenerate.
1472
1473 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
1474
1475         * doc/invoke.texi (xl-compat): Document conversion and support
1476         routine names.
1477
1478 2006-02-07  Jeff Law  <law@redhat.com>
1479
1480         * tree-vrp.c (find_conditional_asserts): Update comments.
1481         (simplify_stmt_for_jump_threading): New.
1482         (identify_jump_threads, finalize_jump_threads): New.
1483         (vrp_finalize): Call identify_jump_threads.
1484         (execute_vrp): Call finalize_jump_threads.
1485         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
1486         (vrp_element, vrp_data, vrp_element_p): Remove.
1487         (vrp_hash_elt, vrp_variables_stack): Remove.
1488         (vrp_hash, vrp_eq, record_range): Remove.
1489         (simplify_cond_and_lookup_avail_expr): Remove.
1490         (extract_range_from_cond): Remove.
1491         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
1492         (simplify_stmt_for_jump_threading): New.
1493         (dom_thread_across_edge): New wrapper.
1494         (tree_ssa_dominator_optimize): No longer initialize or
1495         finalize any of the VRP datastructures.  Remove iteration
1496         step and simplify as a result of removal of iteration step.
1497         (pass_dominator): Perform a cfg cleanup after DOM.
1498         (dom_opt_finalize_block): Use the new common routines
1499         for threading jumps.  Simplify stack management slightly.
1500         No longer need to unwind VRP state.
1501         (record_equivalences_from_incoming_edge): No longer record
1502         VRP information.
1503         (eliminate_redundant_computations): No longer call
1504         simplify_cond_and_lookup_avail_expr.
1505         * tree-flow.h (potentially_threadable_block): Prototype.
1506         (thread_across_edge): Likewise.
1507         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
1508         (tree-ssa-threadedge.o): Add dependencies.
1509         * tree-ssa-threadedge.c: New file.
1510         * passes.c (init_optimization_passes): Merge PHIs before
1511         calling VRP.  Run VRP again late in the SSA optimization pipeline.
1512
1513 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1514
1515         * df-core.c (df_set_blocks): Do not dereference function pointers.
1516         (df_finish1): Likewise.
1517         (df_hybrid_search_forward): Likewise.
1518         (df_hybrid_search_backward): Likewise.
1519         (df_iterative_dataflow): Likewise.
1520         (df_analyze_problem): Likewise.
1521         (df_compact_blocks): Likewise.
1522         (df_dump): Likewise.
1523         * df-scan.c (df_rescan_blocks): Likewise.
1524         (df_record_entry_block_defs): Likewise.
1525
1526         * genconditions.c (write_conditions): Guard the definition of
1527         'insn_conditions' with the check on GCC version.
1528         (write_writer): Guard the traversal 'insn_conditions' with
1529         the check on GCC version.
1530
1531 2006-02-07  Richard Guenther  <rguenther@suse.de>
1532
1533         PR c++/26140
1534         Revert
1535         2006-01-30  Richard Guenther  <rguenther@suse.de>
1536         PR c++/23372
1537         * gimplify.c (gimplify_target_expr): Handle easy cases
1538         without creating a temporary.
1539
1540 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
1541
1542         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
1543         use of float in probability computations.  Use edge probabilities
1544         in place of statically computed probabilities.
1545         (min_spec_prob): New static variable.
1546         (schedule_insns): Initialize it.
1547         (GET_SRC_PROB): Removed.
1548         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
1549
1550 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
1551
1552         PR debug/24444
1553         * config/ia64/unwind-ia64.c: Revert last change.
1554         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
1555         (INCOMING_FRAME_SP_OFFSET): Define.
1556
1557 2006-02-06  Roger Sayle  <roger@eyesopen.com>
1558
1559         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
1560
1561 2006-02-07  Ben Elliston  <bje@au.ibm.com>
1562
1563         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
1564         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
1565         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
1566         (ix86_return_in_memory): Handle TDmode.
1567         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
1568         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
1569
1570 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
1571
1572         * reorg.c (dbr_schedule): Use dump_file instead of file.
1573
1574 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
1575
1576         PR target/25917
1577         * config/ia64/predicates.md (extr_len_operand): New predicate.
1578         * config/ia64/ia64.md (extv): Tighten constraints.
1579         (extzv): Ditto.
1580         (*tbit_and_2): Ditto.
1581         (*tbit_and_3): Ditto.
1582         (*tbit_or_2): Ditto.
1583         (*tbit_or_3): Ditto.
1584         (*bit_zero): Ditto.
1585         (*bit_one): Ditto.
1586
1587 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
1588
1589         PR target/23359
1590         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
1591
1592 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1593
1594         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
1595         loop_optimizer_init and loop_optimizer_finalize
1596         * tree-ssa-sink.c (execute_sink_code): Ditto.
1597         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1598         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
1599         tree_ssa_loop_done): Ditto.
1600         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
1601         * sched-ebb.c: Include output.h.
1602         (schedule_ebbs): Do not use dump argument.
1603         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
1604         * loop.c (loop_dump_stream): Removed.
1605         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
1606         argument.
1607         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
1608         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
1609         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
1610         loop_iterations, strength_reduce, record_biv, record_giv,
1611         final_giv_value, check_final_value, check_ext_dependent_givs,
1612         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
1613         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
1614         dump_file instead of loop_dump_stream.
1615         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
1616         argument dump_file.
1617         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
1618         dump argument.
1619         * flow.c (life_analysis, rest_of_handle_life): Ditto.
1620         * haifa-sched.c: Include output.h
1621         (schedule_insns, sched_init): Do not use dump argument.
1622         * mode-switching.c (optimize_mode_switching): Ditto.
1623         * modulo-sched.c (stats_file): Removed.
1624         (print_node_sched_params): Do not call argument dump_file.
1625         (sms_schedule_by_order, loop_canon_p, sms_schedule,
1626         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
1627         of stats_file.
1628         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
1629         use dump argument.
1630         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
1631         rtl_loop_init, rtl_loop_done): Ditto.
1632         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
1633         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
1634         Ditto.
1635         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
1636         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
1637         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
1638         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
1639         * emit-rtl.c (renumber_insns): Ditto.
1640         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
1641         expand_gimple_basic_block, tree_expand_cfg): Ditto.
1642         * regclass.c (regclass): Ditto.
1643         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
1644         remove_ssa_form, rewrite_out_of_ssa): Ditto.
1645         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
1646         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
1647         Ditto.
1648         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
1649         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
1650         to regclass.
1651         * gcse.c (gcse_file, debug_stderr): Removed.
1652         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
1653         rest_of_handle_gcse): Do not use dump argument.
1654         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
1655         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
1656         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
1657         compute_code_hoist_vbeinout, compute_code_hoist_data,
1658         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
1659         compute_store_table, build_store_vectors, insert_insn_start_bb,
1660         insert_store, remove_reachable_equiv_notes, replace_store_insn,
1661         store_motion): Use dump_file instead of gcse_file.
1662         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
1663         * profile.c (profile_dump_file): Removed.
1664         (branch_prob): Use dump_file instead of profile_dump_file.
1665         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
1666         dump_file.
1667         * tree-ssa-copy.c (dump_copy_of): Ditto.
1668         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
1669         dump file to life_analysis.
1670         * bt-load.c (branch_target_load_optimize): Ditto.
1671         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
1672         renumber_insns.
1673         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
1674         regclass, dbr_schedule): Declaration changed.
1675         * sched-int.h (sched_init): Declaration changed.
1676         * tree-profile.c (tree_profile_dump_file): Removed.
1677         (tree_profile_hooks): Removed profile_dump_file hook.
1678         * rtl-profile (rtl_profile_dump_file): Removed.
1679         (rtl_profile_hooks): emoved profile_dump_file hook.
1680         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
1681         changed.
1682         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
1683         * tree-cfg.c (build_tree_cfg): Ditto.
1684         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
1685         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
1686         Declaration changed.
1687         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
1688         life_analysis and schedule_insns.
1689         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
1690         life_analysis.
1691         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
1692         dbr_schedule.
1693         * config/mips/mips.c (mips_reorg): Ditto.
1694         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
1695         schedule_ebbs.
1696
1697 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
1698
1699         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1700         (s390_mangle_fundamental_type): New.
1701         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1702         Define.
1703
1704         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1705         (alpha_mangle_fundamental_type): New.
1706         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1707         Define.
1708
1709         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1710         Define.
1711         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1712         Define.
1713         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1714         (sparc_mangle_fundamental_type): New.
1715
1716 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
1717
1718         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
1719         (s390x-*-linux*): Likewise.
1720         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
1721         * config/s390/t-linux: New file.
1722
1723 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1724
1725         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
1726         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
1727
1728 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
1729
1730         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
1731         (ANTIC_SAFE_LOADS): New macro.
1732         (find_or_generate_expression): Add prototype.
1733         (set_contains_value): Allow null set for sake of not always having
1734         to allocate ANTIC_SAFE_LOADS.
1735         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
1736         Allow COMPONENT_REF too.
1737         (valid_in_set): Allow COMPONENT_REF.
1738         Check ANTIC_SAFE_LOADS too.
1739         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
1740         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
1741         rename.
1742         (can_PRE_operation): Add COMPONENT_REF.
1743         (create_component_ref_by_pieces): New function.
1744         (create_expression_by_pieces): Use create_component_ref_by_pieces.
1745         (insert_aux): Move AGGREGATE_TYPE_P check here.
1746         (compute_avail): Set bb local stmt uids.
1747         (pass_pre): Use TODO_update_ssa_only_virtuals.
1748         
1749 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1750
1751         * configure.ac: Unconditionally disable decimal float by default.
1752         * configure: Regenerate.
1753
1754 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1755
1756         * read-rtl.c (read_name): Terminate reading on EOF.
1757
1758 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1759
1760         * dfp.c (decimal_real_arithmetic): Change second argument type
1761         from int to enum tree_code. Do not always return true, but now
1762         return result of any call to decimal_do helper functions.
1763         * dfp.h (decimal_real_arithmetic): Update prototype.
1764
1765 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
1766
1767         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
1768
1769 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
1770
1771         PR tree-opt/25251
1772         * tree-cfg.c (cleanup_dead_labels): Also don't remove
1773         forced labels.
1774
1775 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1776
1777         * tree-vrp.c (cfg_loops): Removed.
1778         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
1779         Use current_loops instead of cfg_loops.  Pass flags to
1780         loop_optimizer_init.
1781         * cfgloopmanip.c (fix_loop_structure): Update only available
1782         information.
1783         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
1784         loop_optimizer_init.
1785         * modulo-sched.c (build_loops_structure): Removed.
1786         (sms_schedule): Use loop_optimizer_init.
1787         * loop-init.c (loop_optimizer_init): Use flags to determine
1788         which properties of loops to prepare.
1789         (rtl_loop_init): Pass flags to loop_optimizer_init.
1790         * tree-ssa-sink.c (execute_sink_code): Ditto.
1791         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
1792         * tree-ssa-pre.c (init_pre): Ditto.
1793         * cfgloop.h (LOOPS_NORMAL): New.
1794         (loop_optimizer_init): Declaration changed.
1795
1796 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1797
1798         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
1799         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
1800         pa/t-pa.
1801         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
1802         pa/t-pa.
1803         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
1804         pa/x-ada.
1805         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
1806         * pa/t-pa64: Delete quadlib.c rule.
1807         * pa/x-ada: Revert last change.
1808         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
1809
1810 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1811
1812         PR rtl-optimization/26087
1813         * rtlanal.c (canonicalize_condition): Do not cross basic block
1814         boundaries.
1815
1816 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
1817
1818         PR debug/24444
1819         * config/ia64/ia64.c: Include debug.h.
1820         (MAX_ARTIFICIAL_LABEL_BYTES): New.
1821         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
1822         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
1823         (process_epilogue, process_set, process_for_unwind_directive):
1824         Output unwind info only if requested.  Add CFA info if requested.
1825         Add new arguments as needed.  Adjust callers.
1826         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
1827         incorrect default.
1828         (DWARF2_FRAME_INFO): Define to zero.
1829         * config/ia64/unwind-ia64.c: Remove code that compensated for
1830         the CFA offset error fixed above.
1831         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
1832         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
1833         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
1834         -funwind-tables and -fexceptions to enable frame info.
1835         (dwarf2out_frame_init): Define initial CFA even if
1836         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
1837         DWARF2_UNWIND_INFO is nonzero, not just defined.
1838         (dwarf2out_frame_finish): Output non-EH call frame info only
1839         if DWARF2_FRAME_INFO is nonzero.
1840         (convert_cfa_to_loc_list,
1841         compute_frame_pointer_to_cfa_displacement): Define even if
1842         unwind info is not supported.
1843         (gen_subprogram_die): Use the above unconditionally.  Remove
1844         legacy alternate code.
1845         * toplev.c (compile_file): Compile in call to
1846         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
1847         (lang_dependent_init): Ditto for dwarf2out_frame_init.
1848
1849 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
1850             Jakub Jelinek  <jakub@redhat.com>
1851
1852         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
1853         IBM extended float format long double as "g" on powerpc*-linux.
1854
1855 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1856
1857         PR target/25926
1858         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
1859         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
1860
1861 2006-02-03  Jason Merrill  <jason@redhat.com>
1862
1863         PR c++/25979
1864         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
1865
1866         PR middle-end/25977
1867         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
1868         on the return slot if it's an NRV.
1869
1870 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
1871
1872         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
1873         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
1874         rewrite_use): Do not handle USE_OUTER.
1875         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
1876         add_iv_outer_candidates, may_replace_final_value,
1877         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
1878         (find_interesting_uses_op): Functionality of
1879         find_interesting_uses_outer_or_nonlin moved here.
1880         (find_interesting_uses_outside): Use find_interesting_uses_op.
1881
1882 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
1883
1884         PR target/25960
1885         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
1886
1887 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
1888             Ulrich Weigand  <uweigand@de.ibm.com>
1889
1890         PR target/25864
1891         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
1892         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
1893         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
1894         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
1895         and dxr fields.
1896         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
1897         (s390_rtx_costs): Use the new fields to calculate rtx costs.
1898         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
1899         Define secondary reloads for TFmode moves.
1900         (constant_modes): Add TFmode.
1901         (NR_C_MODES): Set to 8.
1902         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
1903         builtin define.
1904         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
1905         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
1906         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
1907         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
1908         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
1909         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
1910         (FPR mode macro): Add TFmode.
1911         (DSF mode macro): New.
1912         (<de>, <dee> mode attributes): Removed.
1913         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
1914         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
1915         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
1916         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
1917         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
1918         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
1919         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1920         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
1921         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
1922         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1923         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
1924         "*negabs<mode>2", "sqrt<mode>2"):
1925         Changed <de> to <xde>. R constraint replaced by <Rf>.
1926         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
1927         <Rf>.
1928         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1929         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1930         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
1931         splitters.
1932         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
1933         "extenddftf2", "extendsftf2"): New expanders.
1934         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
1935         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1936         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1937         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1938         New options.
1939         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1940         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
1941         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1942         __floatditf): Add a GCC_4.1.0 symbol version tag.
1943         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1944         the new options.
1945
1946 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1947
1948         PR target/25377
1949         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1950         Use targetm.binds_local_p instead of TREE_PUBLIC.
1951
1952 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1953
1954         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1955         on INTEGER_TYPEs to indicate that it denotes a character type.
1956         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1957         signed_char_type_node, unsigned_char_type_node and char_type_node.
1958         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1959         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1960         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1961
1962 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1963             Daniel Berlin  <dberlin@dberlin.org>
1964
1965         * tree-tailcall.c (arg_needs_copy_p): New function.
1966         (eliminate_tail_call): Use arg_needs_copy_p.
1967         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1968         (add_virtual_phis): New function.
1969
1970 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1971
1972         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1973         #ignore instead of #scratch for %g7 .register directive.
1974
1975 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1976
1977         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1978         object files.
1979
1980 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1981
1982         * flow.c (calculate_global_regs_live): Assert that there aren't any
1983         EDGE_FAKE edges.
1984
1985 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1986
1987         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1988         what its name says.
1989         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1990         bsi_after_labels iterator.
1991         * tree-if-conv.c (find_phi_replacement_condition,
1992         replace_phi_with_cond_modify_expr): Likewise.
1993         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1994         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1995
1996 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1997
1998         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1999
2000 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2001
2002         PR 25990
2003         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2004         array after growing it.
2005
2006 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2007
2008         PR middle-end/24901
2009         * fold-const.c (fold_checksum_tree): Change type of buf.
2010
2011 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2012
2013         * reload.c (push_secondary_reload): Initialize t_icode.
2014
2015 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2016
2017         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2018         -msoft-float -mlong-double-128 only issue a warning, but don't
2019         swich to DFmode long double.
2020
2021 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2022
2023         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2024         has a constant equivalent, iterate over equivalents for arg0,
2025         calling simplify_relational_operation and if there's a result
2026         cheaper than X, apply fold_rtx and return the result.
2027
2028 2006-02-01  Jan Hubicka  <jh@suse.cz>
2029
2030         * opts.c (no_unit_at_a_time_default): New global variable.
2031         (decode_options): Use it.
2032         * opts.h (no_unit_at_a_time_default): Declare.
2033
2034 2006-02-01  Paul Brook  <paul@codesourcery.com>
2035
2036         * function.c (assign_parm_setup_reg): Use function argument promotion
2037         rules.
2038         * expr.c (expand_expr_real_1): Use function argument promotion rules
2039         for PARM_DECLs.
2040
2041 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2042
2043         * gcc.c (process_command): Change j to 'unsigned int'.
2044
2045 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2046
2047         PR middle-end/26001
2048         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
2049         Use the corrected index for the character
2050         out of the string constant.
2051
2052 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2053
2054         * mode-switching.c (optimize_mode_switching): Fix size
2055         allocated for bb_info[n_entities].
2056
2057 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2058
2059         * gcc.c (main): Correct type that is allocated for
2060         explicit_link_files.
2061
2062 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
2063
2064         * config/s390/s390.c (init_alignment_context): Set
2065         ALIAS_SET_MEMORY_BARRIER on the MEM.
2066         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
2067
2068 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2069
2070         PR middle-end/25933
2071         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2072         dom_bbs pointer.
2073         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2074         call to tpa_init.
2075
2076 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2077
2078         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2079         * regrename.c: Ditto.
2080         * tree-ssa-loop-im.c: Ditto.
2081         * tree-dump.c: Ditto.
2082         * tree-complex.c: Ditto.
2083         * genrecog.c: Ditto.
2084         * tree-ssa-threadupdate.c: Ditto.
2085         * tracer.c: Ditto.
2086         * java/class.c: Ditto.
2087         * java/jcf-parse.c: Ditto.
2088         * java/resource.c: Ditto.
2089         * java/except.c: Ditto.
2090         * java/jvspec.c: Ditto.
2091         * java/jcf-write.c: Ditto.
2092         * java/jcf-path.c: Ditto.
2093         * java/gjavah.c: Ditto.
2094         * java/zextract.c: Ditto.
2095         * java/jcf-io.c: Ditto.
2096         * java/jcf.h: Ditto.
2097         * java/buffer.c: Ditto.
2098         * java/lang.c: Ditto.
2099         * java/parse-scan.y: Ditto.
2100         * java/lex.c: Ditto.
2101         * java/lex.h: Ditto.
2102         * cfgloopmanip.c: Ditto.
2103         * postreload-gcse.c: Ditto.
2104         * tree-ssa-loop-manip.c: Ditto.
2105         * postreload.c: Ditto.
2106         * tree-ssa-loop-ch.c: Ditto.
2107         * loop.c: Ditto.
2108         * ipa-cp.c: Ditto.
2109         * cppspec.c: Ditto.
2110         * diagnostic.c: Ditto.
2111         * final.c: Ditto.
2112         * genoutput.c: Ditto.
2113         * gcc.c: Ditto.
2114         * cfghooks.c: Ditto.
2115         * cfgloopanal.c: Ditto.
2116         * objc/objc-act.c: Ditto.
2117         * gcov.c: Ditto.
2118         * genextract.c: Ditto.
2119         * genautomata.c: Ditto.
2120         * pretty-print.c: Ditto.
2121         * genemit.c: Ditto.
2122         * cgraphunit.c: Ditto.
2123         * flow.c: Ditto.
2124         * df-scan.c: Ditto.
2125         * haifa-sched.c: Ditto.
2126         * dominance.c: Ditto.
2127         * dbxout.c: Ditto.
2128         * tree-ssa-loop-ivopts.c: Ditto.
2129         * df-core.c: Ditto.
2130         * mode-switching.c: Ditto.
2131         * modulo-sched.c: Ditto.
2132         * graph.c: Ditto.
2133         * ipa-pure-const.c: Ditto.
2134         * cse.c: Ditto.
2135         * fix-header.c: Ditto.
2136         * web.c: Ditto.
2137         * tree-stdarg.c: Ditto.
2138         * ipa-utils.c: Ditto.
2139         * loop-init.c: Ditto.
2140         * ipa-inline.c: Ditto.
2141         * cfganal.c: Ditto.
2142         * global.c: Ditto.
2143         * alloc-pool.c: Ditto.
2144         * dwarf2out.c: Ditto.
2145         * opts.c: Ditto.
2146         * genattrtab.c: Ditto.
2147         * tree-ssa-loop-ivcanon.c: Ditto.
2148         * predict.c: Ditto.
2149         * timevar.c: Ditto.
2150         * lcm.c: Ditto.
2151         * fortran/gfortranspec.c: Ditto.
2152         * regmove.c: Ditto.
2153         * local-alloc.c: Ditto.
2154         * langhooks.c: Ditto.
2155         * function.c: Ditto.
2156         * tree-vectorizer.c: Ditto.
2157         * gcse.c: Ditto.
2158         * ipa-type-escape.c: Ditto.
2159         * alias.c: Ditto.
2160         * tree-if-conv.c: Ditto.
2161         * profile.c: Ditto.
2162         * ipa.c: Ditto.
2163         * tree-data-ref.c: Ditto.
2164         * loop-unroll.c: Ditto.
2165         * treelang/treetree.c: Ditto.
2166         * calls.c: Ditto.
2167         * bt-load.c: Ditto.
2168         * ggc-common.c: Ditto.
2169         * except.c: Ditto.
2170         * coverage.c: Ditto.
2171         * cselib.c: Ditto.
2172         * tree-cfgcleanup.c: Ditto.
2173         * tree-ssa-pre.c: Ditto.
2174         * cfgcleanup.c: Ditto.
2175         * loop-invariant.c: Ditto.
2176         * loop-iv.c: Ditto.
2177         * ipa-prop.c: Ditto.
2178         * print-tree.c: Ditto.
2179         * conflict.c: Ditto.
2180         * ggc-page.c: Ditto.
2181         * sched-deps.c: Ditto.
2182         * regclass.c: Ditto.
2183         * tree-object-size.c: Ditto.
2184         * combine.c: Ditto.
2185         * bb-reorder.c: Ditto.
2186         * resource.c: Ditto.
2187         * var-tracking.c: Ditto.
2188         * cfgloop.c: Ditto.
2189         * df-problems.c: Ditto.
2190         * reg-stack.c: Ditto.
2191         * tlink.c: Ditto.
2192         * gccspec.c: Ditto.
2193         * sched-rgn.c: Ditto.
2194         * tree-ssa-structalias.c: Ditto.
2195         * tree-ssa-reassoc.c: Ditto.
2196         * config/darwin-c.c: Ditto.
2197         * config/darwin.c: Ditto.
2198         * config/arm/arm.c: Ditto.
2199         * cfgrtl.c: Ditto.
2200         * collect2.c: Ditto.
2201         * reload1.c: Ditto.
2202
2203 2006-01-31  Nicolas Pitre  <nico@cam.org>
2204
2205         * arm.md (smaxsi3): Make aware of smax_m1.
2206         (smax_m1): New.
2207
2208 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2209
2210         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2211
2212 2006-01-31  Richard Guenther  <rguenther@suse.de>
2213
2214         * doc/invoke.texi (-msselibm): Document.
2215         * target.h (expand_library_builtin): New target hook.
2216         * builtins.c (expand_builtin): Use expand_library_builtin.
2217         (default_expand_library_builtin): New function.
2218         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2219         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2220         (link_gcc_math_spec): Declare.
2221         (static_specs): Add link_gcc_math_spec.
2222         * expr.h (default_expand_library_builtin): Declare.
2223         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2224         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
2225         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
2226         * config/i386/i386.opt (msselibm): New target option.
2227         * config/i386/i386.c (ix86_builtin_function_variants): New array.
2228         (ix86_init_sse_abi_builtins): New function.
2229         (ix86_expand_library_builtin): Likewise.
2230         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2231         (override_options): Handle error conditions wrt -msselibm.
2232         (ix86_builtins): Add function codes for SSE2 ABI builtins.
2233         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
2234         * doc/extend.texi (__builtin_sse2_*): Document new target specific
2235         builtins.
2236
2237 2006-01-31  Richard Guenther  <rguenther@suse.de>
2238         Paolo Bonzini  <bonzini@gnu.org>
2239
2240         * doc/install.texi (--disable-libgcc-math): Document.
2241
2242 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
2243
2244         * expr.h (expand_normal): new inline function.
2245         * builtins.c: use it, use EXPAND_NORMAL explicitely.
2246         * dojump.c: use it.
2247         * dwarf2out.c: use it.
2248         * expr.c: use it.
2249         * calls.c: use it.
2250         * expmed.c: use it.
2251         * except.c: use it.
2252         * config/sparc/sparc.c: use it.
2253         * config/i386/i386.c: use it.
2254         * config/rs6000/rs6000.c: use it.
2255         * config/arm/arm.c: use it.
2256         * config/mips/mips.c: use it.
2257         * stmt.c: use it, use EXPAND_NORMAL explicitely.
2258
2259 2006-01-30  Roger Sayle  <roger@eyesopen.com>
2260
2261         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
2262         argv to the appropriate type.
2263
2264 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
2265
2266         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
2267         unreachable code.
2268
2269 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
2270
2271         PR target/26018
2272         * config/s390/s390.c (struct machine_function): New flag
2273         decomposed_literal_pool_addresses_ok_p.
2274         (s390_reorg): Set it before final stage of literal pool transforms.
2275         (s390_decompose_address): Only accept displacements of the form
2276         (minus (label_ref ...) (label_ref ...)) if that flag is set.
2277
2278 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
2279
2280         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
2281         the comparison routine return.
2282
2283 2006-01-30  Michael Matz  <matz@suse.de>
2284
2285         * global.c (find_reg): Only evict for global regs.
2286         Take n_refs into account and dump more info.
2287
2288 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
2289
2290         PR target/14798:
2291         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
2292         (pragma_trap, pragma_nosave_low_regs): Likewise.
2293         (current_function_anonymous_args): Likewise.
2294         (sh_deferred_function_attributes): New variable.
2295         (sh_deferred_function_attributes_tail): Likewise.
2296         (print_operand): For '@', look up trap_exit attribute.
2297         (calc_live_regs): Look up trapa_handler attribute.  For trapa
2298         handlers, save/restore fpscr, but don't do any other
2299         interrupt-specific saves.
2300         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
2301         Fix check for partially saved registers to check for SHmedia.
2302         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
2303         (sh_output_function_epilogue): Don't clear any of the removed
2304         variables.
2305         (sh_insert_attributes): Don't check pragma_interrupt.
2306         Insert deferred attributes.  Check that interrupt attribute is
2307         present for other attributes that require its presence.
2308         (sh_attribute_table): Add new attributes trapa_handler and
2309         nosave_low_regs.
2310         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
2311         Don't check for pragma_interrupt.  Don't store argument.
2312         * sh.h (pragma_interrupt, sp_switch): Don't declare.
2313         (sh_deferred_function_attributes): Declare.
2314         (sh_deferred_function_attributes_tail): Likewise.
2315         * sh.md (sp_switch_1): Add operand.  Change generator caller.
2316         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
2317         (*return_i): Don't use when trap_exit attribute is in effect.
2318         (*return_trapa): New insn pattern.
2319         * sh-c.c: New file.
2320         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
2321         setting c_target_objs and cxx_target_objs.
2322         * t-sh: Add rule for sh-c.o.
2323
2324 2006-01-30  Richard Guenther  <rguenther@suse.de>
2325
2326         PR c++/23372
2327         * gimplify.c (gimplify_target_expr): Handle easy cases
2328         without creating a temporary.
2329
2330 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
2331
2332         * vec.h (safe_grow): Remove duplicated line.
2333
2334 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
2335
2336         PR 25874
2337         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
2338         (expand_omp): ... here.
2339         (expand_omp_parallel): Only remove barriers for combined
2340         parallel+workshare constructs.
2341
2342 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2343
2344         Revert
2345
2346         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
2347         * tree.c (build_qualified_type): Chain the new type to the original
2348         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
2349         a POINTER_TYPE or a REFERENCE_TYPE respectively.
2350         (build_pointer_type_for_mode): Only return unqualified types.
2351         (build_reference_type_for_mode): Likewise.
2352
2353 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
2354
2355         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
2356         * Makefile.in (CXX_COMPAT_WARN): Define.
2357         * configure: Regenerate.
2358
2359 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2360
2361         PR tree-opt/25911
2362         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
2363         to an if check.
2364
2365 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2366
2367         * toplev.c: Fix thinko.
2368
2369 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2370             Marcin Dalecki  <martin@dalecki.de>
2371
2372         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
2373         (push_srcloc): Use XNEW.
2374         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
2375
2376 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
2377
2378         * df-core.c (df_set_blocks): Deleted all variable.
2379
2380 2006-01-28  Ian Lance Taylor  <ian@airs.com>
2381
2382         * cgraphunit.c (cgraph_assemble_pending_functions): Call
2383         cgraph_output_pending_asms.
2384
2385 2006-01-28  Zack Weinberg  <zackw@panix.com>
2386
2387         * c.opt: Add -W(no-)overlength-strings.
2388         * doc/invoke.texi: Document it.
2389         * c-opts.c (c_common_handle_option): -pedantic implies
2390         -Woverlength-strings, if not explicitly disabled already.
2391         (c_common_post_options): -Woverlength-strings defaults to off, and
2392         is always off for C++.
2393         * c-common.c (fix_string_type): Issue warning about strings longer
2394         than is portable only if warn_overlength_strings.  Rearrange code
2395         a little for clarity.
2396         * configure.in: Check for -Wno-overlength-strings as well before
2397         enabling -pedantic in stage 1.
2398         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
2399         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
2400
2401         * genconditions.c (write_header, write_one_condition)
2402         (write_conditions, write_writer): Consolidate very long strings
2403         that were broken up to fit in C89 portable limit.  Don't use
2404         printf when fputs will do.
2405
2406 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
2407
2408         * combine.c (simplify_comparison <AND>): Check
2409         TRULY_NOOP_TRUNCATION before start using a subreg.
2410
2411         * config/mips/mips.md (*branch_zero<mode>,
2412         *branch_zero<mode>_inverted, *branch_equality<mode>,
2413         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
2414         Remove mode check from comparisons.
2415
2416 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
2417
2418         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
2419
2420 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2421
2422         * expmed.c (const_mult_add_overflow_p): Remove.
2423         * expr.h: Remove the prototype for const_mult_add_overflow_p.
2424
2425         * recog.c (validate_replace_rtx_subexp): Remove.
2426         * recog.h: Remove the prototype for
2427         validate_replace_rtx_subexp.
2428
2429         * integrate.h: Remove the prototype for
2430         copy_decl_for_inlining.
2431         * rtl.h: Remove the prototype for mark_constant_function.
2432         * tree-vectorizer.h: Remove the prototype for
2433         vect_strip_conversion.
2434
2435         * modulo-sched.c (create_partial_schedule,
2436         free_partial_schedule, reset_partial_schedule): Make them
2437         static.
2438
2439         * hooks.c (hook_bool_rtx_int_false): Remove.
2440         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
2441
2442 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
2443
2444         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2445         and -mlong-double-128 are incompatible.
2446         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
2447         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
2448         (TARGET_LIBGCC2_CFLAGS): Define.
2449         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
2450         (TARGET_LIBGCC2_CFLAGS): Same.
2451         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
2452
2453 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2454
2455         PR c/19606.
2456         * c-typeck.c (build_binary_op): Perform implicit casts of
2457         operands before shortening them.
2458
2459         * cfgloopmanip.c (split_loop_bb): Remove.
2460         * cfgloop.h: Remove the prototype for split_loop_bb.
2461
2462         * cfgloop.c (flow_loop_outside_edge_p): Remove.
2463         * cfgloop.h: Remove the prototype for
2464         flow_loop_outside_edge_p.
2465
2466         * emit-rtl.c (init_virtual_regs): Make it static.
2467         * function.h: Remove the prototype for init_virtual_regs.
2468
2469         * recog.c (peephole2_optimize): Make it static.
2470         * recog.h: Remove the prototype for peephole2_optimize.
2471
2472 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2473
2474         * df-scan.c (df_record_entry_block_defs): Check if
2475         INCOMING_RETURN_ADDR_RTX is defined.
2476
2477 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
2478             Kenneth Zadeck <zadeck@naturalbridge.com>
2479
2480         PR rtl-optimization/24762
2481         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2482         * targhooks.c (hook_void_bitmap): New hook prototype.
2483         * targhoohs.h (hook_void_bitmap): Ditto.
2484         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
2485         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
2486         * target.h (live_on_entry): New function pointer.
2487         * df-scan.c (df_all_hard_regs): Removed.
2488         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
2489         (df_scan_free_internal): Added df->entry_block_defs.
2490         (df_scan_alloc): Ditto.
2491         (df_scan_dump): Ditto.
2492         (df_uses_record): Plumbed flag field properly thru calls.
2493         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
2494         This part fixes PR24762.
2495         (df_bb_refs_record): Added code to make the frame and arg
2496         pointers live in EH blocks.
2497         (df_refs_record): Added call to df_record_entry_block_defs.
2498         (df_record_entry_block_defs): New function.
2499         * df-core.c: Added comments to describe new artifical defs.
2500         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
2501         (entry_block_defs): New field in struct df.
2502         (df_all_hard_regs): Deleted.
2503         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2504         * df-problems.c (df_ru_bb_local_compute_process_def):
2505         Added code to handle artifical defs in the entry to a function.
2506         (df_ru_bb_local_compute): Ditto.
2507         (df_rd_bb_local_compute_process_def):  Ditto.
2508         (df_rd_bb_local_compute): Ditto.
2509         (df_lr_bb_local_compute): Ditto.
2510         (df_ur_bb_local_compute): Ditto.
2511         (df_urec_bb_local_compute):  Ditto.
2512         (df_chain_create_bb):  Ditto.
2513         (df_ur_local_finalize): Removed entry.
2514         (df_urec_init): Ditto.
2515         (df_urec_local_finalize): Ditto.
2516         (df_ri_bb_compute): Added detection of last use of pseudos.
2517         * Makefile.in (df-scan.o): Updated dependencies.
2518         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
2519         * config/mips/mips.c (mips_set_live_on_entry): Added.
2520         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
2521         for target hook.
2522         * dce.c (marked_insn_p): Added code to handle artifical defs.
2523
2524 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2525
2526         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
2527         intrinsic.
2528         (_mm_cvtsi128_si64): Likewise.
2529         (_mm_cvtsd_si64): Likewise.
2530         (_mm_cvttsd_si64): Likewise.
2531         (_mm_cvtsi64_sd): Likewise.
2532         (_mm_cvtsi64_si128): Likewise.
2533         * config/i386/mmintrin.h (_m_from_int64): Likewise.
2534         (_mm_cvtsi64_m64): Likewise.
2535         (_m_to_int64): Likewise.
2536         (_mm_cvtm64_si64): Likewise.
2537         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
2538         (_mm_cvttss_si64): Likewise.
2539         (_mm_cvtsi64_ss): Likewise.
2540         (_mm_cvtss_f32): Likewise.
2541
2542 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
2543
2544         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
2545         for pragma redefine_extname.
2546
2547 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
2548
2549         PR target/25864
2550         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
2551         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
2552         -mno-minimal-toc to previous content.
2553         (bispecs): Remove goal.
2554         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
2555         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
2556         compatibility aliases on powerpc-*-*gnu*.
2557         * config/rs6000/libgcc-ppc-glibc.ver: New file.
2558         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
2559         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
2560         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
2561         (ldblspecs): New goal.
2562         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
2563         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
2564         _df_to_tf.
2565         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
2566         L_sf_to_tf or L_df_to_tf is defined.
2567
2568 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
2569             Alan Modra  <amodra@bigpond.net.au>
2570
2571         PR target/25864
2572         * config/rs6000/linux.h (POWERPC_LINUX): Define.
2573         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
2574         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
2575         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
2576         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
2577         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
2578         (rs6000_override_options): Initialize rs6000_ieeequad.
2579         Initialize TFmode format to ibm_extended_format if not
2580         TARGET_IEEEQUAD.
2581         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
2582         ieeelongdouble.
2583         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
2584         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
2585         (function_arg_advance): IBM long double passed in two FPRs, not
2586         split.
2587         (function_arg): IBM long double passed in FPRs.
2588         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
2589         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
2590         Only multireg GPR aligned.
2591         (rs6000_init_libfuncs): Enable IBM long double functions if not
2592         IEEEQUAD.
2593         (rs6000_generate_compare): Use IBM long double compare if not
2594         TARGET_IEEEQUAD.
2595         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
2596         (TARGET_IEEEQUAD): Define.
2597         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
2598         not TARGET_IEEEQUAD.
2599         * config/rs6000/rs6000.md: Enable TFmode patterns if
2600         !TARGET_IEEEQUAD.
2601         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
2602         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2603         and -mlong-double-128 are incompatible.
2604         * doc/invoke.texi (-mabi): Collect options together.  Add
2605         ibmlongdouble and ieeelongdouble.
2606
2607 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
2608
2609         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
2610         opaque type.
2611         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
2612         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
2613         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
2614         * rtl.h (rtunion_def): Remove rt_ptr.
2615         (X0PTR): Delete.
2616         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
2617         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
2618         * config/i386/winnt.c (i386_pe_mark_dllexport)
2619         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
2620
2621 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
2622
2623         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
2624
2625 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
2626
2627         PR other/24829
2628         PR target/24831
2629         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
2630         pthread_key_delete.  From John David Anglin.  gthrw-ify
2631         pthread_getunique_np only if it it's not a macro.  Delete
2632         UNUSED macro.
2633         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
2634         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
2635         __gthread_objc_condition_signal, __gthread_key_delete): Add
2636         "__attribute__ ((__unused__))" to unused arguments.
2637         (__gthread_recursive_mutex_init_function): Add missing return.
2638         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
2639         gthr-posix95.h: Use macro-based approach for name redirection
2640         on targets missing weakref.
2641
2642 2006-01-26  Zack Weinberg  <zackw@panix.com>
2643
2644         * genconditions.c (write_header): In generated code, #ifdef out
2645         all includes and fake declarations, except includes of bconfig.h
2646         and system.h, unless GCC_VERSION >= 3001.  Do not include
2647         gensupport.h in any case.
2648         (write_conditions): Generate a definition of struct c_test.  Add
2649         a comment to the generated #endif.
2650         (write_one_condition): Escape backslashes in string too.
2651         (write_writer): Generated code must escape backslashes and quote
2652         marks (but not newlines) in the strings it writes.
2653         * Makefile.in (build/gencondmd.o): Update dependencies.
2654
2655 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2656
2657         PR target/25961
2658         * Makefile.in (insn-automata.o): Add header file dependencies.
2659         * genautomata.c: Add includes.
2660
2661 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2662
2663         PR target/25961
2664         * Makefile.in (insn-automata.o): Add -Wno-error flag.
2665
2666 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2667
2668         * configure.ac: Expect target tools paths to be passed from the toplevel
2669         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
2670         AS_SET_VAR_IF.
2671         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
2672
2673 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
2674
2675         PR c/25892
2676         * c.opt (Wpointer-sign): Init to -1.
2677         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
2678         OPT_pedantic, to 0 otherwise.
2679         * doc/invoke.texi: Update.
2680
2681 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2682
2683         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
2684         constants provided by 80387 instructions in the destination mode.
2685
2686 2006-01-26  Richard Guenther  <rguenther@suse.de>
2687             Andrew Pinski  <pinskia@physics.uc.edu>
2688
2689         PR tree-opt/21470
2690         partial PR tree-opt/17064
2691         * tree-ssa-structalias.c (intra_create_variable_infos):
2692         Create heap variables for incoming parameters if
2693         flag_argument_noalias > 1.
2694         (find_what_p_points_to): Look through default defs of
2695         parameter decls.
2696
2697 2006-01-26  Jeff Law  <law@redhat.com>
2698
2699         PR ada/25900
2700         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
2701         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
2702         within the VR_RANGE, use the VR_RANGE as the result, not the
2703         VR_ANTI_RANGE.
2704         (adjust_range_with_scev): Reject ranges from SCEV which are out of
2705         bounds for the type.
2706
2707 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
2708
2709         * tree-ssa-alias.c (maybe_create_global_var): Change
2710         subvar walking to an assertion that we don't have subvar'd variables.
2711
2712 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
2713
2714         PR C/25861
2715         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
2716         Use a new variable, inner.  PARM_DECLs are always non-weak.
2717
2718 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
2719
2720         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
2721         --disable-checking.
2722
2723 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
2724
2725         * config/mips/mips.md (*clear_upper32): New combiner pattern.
2726
2727 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
2728
2729         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
2730         (smax_insn, smin_insn, smax_0, smin_0): New.
2731
2732 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
2733
2734         PR target/25947
2735         * config/cris/cris.c (cris_order_for_addsi3): New function.
2736         * config/cris/cris-protos.h: Prototype it.
2737         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
2738         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
2739         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
2740         (split for "op.S1 [rx=rx+i],ry (swapped)")
2741         (split for "op(s|u).S1 [rx=rx+i],ry")
2742         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
2743         Apply cris_order_for_addsi3 when generating addsi3 insns.
2744
2745 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2746
2747         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
2748         (TREE_BLOCK): Add call to EXPR_CHECK.
2749
2750 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2751
2752         PR 25886
2753         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
2754         * tree-pretty-print.c (dump_omp_clause): Extract from ...
2755         (dump_omp_clauses): ... here.
2756         (dump_generic_node): Handle OMP_CLAUSE.
2757         * tree.c (omp_clause_num_ops): New.
2758         (omp_clause_code_name): New.
2759         (tree_code_size): Handle OMP_CLAUSE.
2760         (tree_size): Likewise.
2761         (make_node): Document handling of OMP_CLAUSE.
2762         (tree_node_structure): Handle OMP_CLAUSE.
2763         (omp_clause_check_failed): New.
2764         (omp_clause_range_check_failed): New.
2765         (omp_clause_operand_check_failed): New.
2766         (build_omp_clause): New.
2767         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
2768         * tree.h (enum omp_clause_code): Declare.
2769         (OMP_CLAUSE_SUBCODE_CHECK): Define.
2770         (OMP_CLAUSE_RANGE_CHECK): Define.
2771         (OMP_CLAUSE_ELT_CHECK): Define.
2772         (omp_clause_check_failed): Declare.
2773         (omp_clause_operand_check_failed): Declare.
2774         (omp_clause_range_check_failed): Declare.
2775         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
2776         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
2777         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
2778         (OMP_CLAUSE_LASTPRIVATE): Likewise.
2779         (OMP_CLAUSE_IF_EXPR): Likewise.
2780         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
2781         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
2782         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
2783         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
2784         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
2785         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
2786         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
2787         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
2788         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
2789         (OMP_CLAUSE_CODE): Define.
2790         (OMP_CLAUSE_SET_CODE): Define.
2791         (OMP_CLAUSE_CODE): Define.
2792         (OMP_CLAUSE_OPERAND): Define.
2793         (struct tree_omp_clause): Declare.
2794         (union tree_node): Add field 'omp_clause'.
2795         * treestruct.def (TS_OMP_CLAUSE): Define.
2796         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
2797         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
2798         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
2799         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
2800         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
2801         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
2802         (OMP_CLAUSE): Define.
2803         * print-tree.c (print_node): Handle OMP_CLAUSE.
2804         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
2805         * c-typeck.c: Likewise.
2806         * gimplify.c: Likewise.
2807         * c-omp.c: Likewise.
2808         * tree-nested.c: Likewise.
2809         * tree-inline.c: Likewise.
2810         * c-parser.c: Likewise.
2811         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
2812         clauses.
2813
2814 2006-01-25  Roger Sayle  <roger@eyesopen.com>
2815
2816         PR rtl-optimization/25703
2817         * combine.c (try_combine): Handle zero_extract and strict_low_part
2818         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
2819
2820 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
2821
2822         * global.c: Fix comment typos.
2823
2824 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
2825
2826         PR target/25758
2827         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
2828         Use output_addr_const instead of assemble_name.
2829
2830 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
2831
2832         * Makefile.in (sched-vis.o): Update dependencies.
2833         * haifa-sched.c (sched_finish): Clear current_sched_info.
2834         * cfg.c (dump_bb_info): New, split from dump_flow_info.
2835         (dump_flow_info): Call it.
2836         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
2837         a slim RTL dump.
2838         * basic-block.h (dump_bb_info): Declare.
2839         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
2840         option, and apply options only for dump files whose TDF_RTL,
2841         TDF_TREE, or TDF_IPA bits match.
2842         * rtl.h: Declare new functions exported from sched-vis.c.
2843         * sched-vis.c: Enable also if scheduling is not used.
2844         (print_value): Print the mode of registers if not inside scheduling.
2845         (print_insn): Make it work outside the scheduler.  Beautify the output
2846         a bit.
2847         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
2848
2849 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2850
2851         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
2852         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
2853         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
2854         depending on the value of CONSTANT_POOL_ADDRESS_P.
2855         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
2856         SYMBOL_REF_DECL.
2857         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
2858         rather than SYMBOL_REF_DECL.
2859         (rtx_constant_pool): Remove const_rtx_sym_htab.
2860         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
2861         (init_varasm_status): Don't initialize const_rtx_sym_htab.
2862         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
2863         Remove handling of const_rtx_sym_htab.
2864         (find_pool_constant): Delete.
2865         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
2866         rather than find_pool_constant.
2867         (get_pool_constant_for_function): Delete.
2868         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
2869         find_pool_constant.
2870         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
2871         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
2872         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
2873         (SYMBOL_REF_CONSTANT): New macro.
2874         (get_pool_constant_for_function): Delete.
2875         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
2876         rather than SYMBOL_REF_DECL.
2877         (i386_pe_mark_dllimport): Likewise.
2878         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
2879         rather than SYMBOL_REF_DECL.
2880         * config/darwin.c (machopic_indirect_data_reference): Likewise.
2881         (machopic_indirect_call_target): Likewise.
2882
2883 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
2884
2885         * flow.c (delete_noop_moves): Add missing EOL to dump message.
2886
2887 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2888
2889         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
2890
2891 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
2892
2893         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
2894
2895 2006-01-24  David Daney  <ddaney@avtrex.com>
2896
2897         PR java/25816
2898         * configure.ac (enable_tls): New enable option.
2899         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
2900         * configure: Regenerate.
2901         * doc/install.texi (--enable-tls): Document new option.
2902         (--disable-tls): Ditto.
2903
2904 2006-01-24  Richard Henderson  <rth@redehat.com>
2905
2906         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
2907         * alias.c (true_dependence): Respect it.
2908         (canon_true_dependence, write_dependence_p): Likewise.
2909         * builtins.c (get_builtin_sync_mem): Set it.
2910
2911 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
2912
2913         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
2914         efficient way.
2915
2916 2006-01-24  DJ Delorie  <dj@redhat.com>
2917
2918         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2919         for storing constants in single-bit bitfields.
2920
2921 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2922
2923         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2924
2925 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2926
2927         PR tree-opt/25860
2928         * tree-ssa-pre.c (phi_translate): Return NULL
2929         for AGGREGATE_TYPE's.
2930
2931 2006-01-24  Zack Weinberg  <zackw@panix.com>
2932
2933         * genautomata.c (process_state_for_insn_equiv_partition):
2934         Use xcalloc for insn_arcs_array.
2935         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2936         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2937
2938 2006-01-24  Richard Henderson  <rth@redhat.com>
2939
2940         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2941         update all callers.
2942
2943 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2944
2945         PR rtl-optimization/25890
2946         PR rtl-optimization/25905
2947         * combine.c (expand_compound_operation, expand_field_assignment):
2948         Fail if the bitfield's final position is out of bounds.
2949
2950 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2951
2952         PR middle-end/25930
2953         * cgraphunit.c (cgraph_output_in_order): Don't clear
2954         cgraph_asm_nodes until after asm strings have been output.
2955
2956 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2957
2958         * fix-header.c (read_scan_file): Add new parameter imultilib when
2959         calling register_include_chains.
2960
2961 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2962
2963         * omp-low.c: Update documentation.
2964
2965 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2966             Daniel Berlin  <dberlin@dberlin.org>
2967
2968         PR tree-opt/25315
2969         PR tree-opt/25857
2970         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2971         return from the function.
2972
2973 2006-01-22  Zack Weinberg  <zackw@panix.com>
2974
2975         * rtl.def (match_code): Add second argument.
2976         * genpreds.c (write_extract_subexp): New function.
2977         (write_match_code): Add path argument.  Use write_extract_subexp.
2978         (write_predicate_expr): Pass path to write_match_code.
2979         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2980         not perform a mode test.
2981         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2982         a subexpression does not constrain the top-level code set.
2983         * read-rtl.c (read_rtx_variadic): New function.
2984         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2985         * doc/md.texi: Document new notation.
2986         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2987         (cmpsi_operand): ... here, using new notation.
2988
2989 2006-01-22  Zack Weinberg  <zackw@panix.com>
2990
2991         * varray.c: Remove GENERATOR_FILE #ifdefs.
2992
2993 2006-01-22  Zack Weinberg  <zackw@panix.com>
2994
2995         * genautomata.c (output_reserved_units_table): Emit nothing if
2996         description->query_units_num is zero.  Remove extra blank line.
2997         (output_cpu_unit_reservation_p): Short circuit
2998         if description->query_units_num is zero.
2999
3000 2006-01-22  Zack Weinberg  <zackw@panix.com>
3001
3002         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
3003         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
3004         nor any of the random handful of variables that used to be necessary
3005         when this program was linked with rtlanal.o.  Prune set of forward
3006         function declarations.
3007         (struct attr_desc): Remove static_p field.
3008         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
3009         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
3010         (attr_string): Do not read the character one past the length of
3011         the string.
3012         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
3013         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
3014         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
3015         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
3016         (make_automaton_attrs): New.
3017         (main): Do not call into genautomata.  Call local gen_bypass
3018         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
3019         Remove special case for insn_alts.
3020         * genautomata.c: Include gensupport.h; not genattrtab.h nor
3021         varray.h (leftover from previous change).  Prune set of forward
3022         function declarations.  Remove state_alts fields from all
3023         structures.  Remove state_alts_table from struct automaton.
3024         Make everything except main static.  Do not maintain num_dfa_decls.
3025         Do not maintain state_alts fields of various structures.
3026         (process_decls): Don't validate condexp for dm_insn_reserv decls.
3027         (add_arc): Remove state_alts argument.  All callers updated.
3028         (output_reserved_units_table): Emit #ifdef here...
3029         (output_tables): ...not here.  Don't generate state_alts tables.
3030         (expand_automata): Don't generate attributes.
3031         (write_automata): Don't generate state_alts functions.
3032         (main): New function.
3033         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
3034         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
3035         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
3036         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
3037         (BYPASS_P_FUNC_NAME, output_state_alts_table)
3038         (output_automata_list_state_alts_code, output_internal_state_alts_func)
3039         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
3040         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
3041         Delete.
3042         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
3043         * genattrtab.h: Delete file.
3044         * Makefile.in (OBJS-common): Add insn-automata.o.
3045         (insn-automata.o): New rule.
3046         (simple_generated_c): Add insn-automata.c.
3047         (build/genattrtab.o, build/genautomata.o): Update dependencies.
3048         (genprogmd): Add automata.
3049         (build/genattrtab): Needs no extra objects nor libraries.
3050         (build/genautomata): Needs build/vec.o and -lm.
3051
3052 2006-01-22  Zack Weinberg  <zackw@panix.com>
3053
3054         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
3055         (output_dfa_max_issue_rate, locked_states_num): Delete.
3056         (struct automaton): Add locked_states field.
3057         (output_dead_lock_vect): Save number of locked states in
3058         automaton->locked_states.  If it is zero, don't print anything.
3059         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
3060         (output_internal_dead_lock_func): Only test the dead_lock_vect
3061         for automata that have locked states.
3062         (output_statistics): Always print the number of locked states for
3063         each automaton.  Calculate total number of locked states here.
3064         (write_automata): Don't call output_dfa_max_issue_rate.
3065         * genattrtab.c: Define length_unit_log as a const variable.
3066         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
3067         max_insn_queue_index const.
3068         * final.c (length_unit_log): Declare const.
3069         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
3070
3071 2006-01-22  Zack Weinberg  <zackw@panix.com>
3072
3073         * genautomata.c:  Include vec.h, not varray.h.
3074         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
3075         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
3076         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
3077         VEC_* macros operating on appropriately typed vectors, or to
3078         malloced arrays when the size is known in advance.  Const-ify
3079         many char* variables and function arguments.  No functional changes.
3080         * Makefile.in (build/varray.o): Delete rule.
3081         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3082         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3083
3084 2006-01-22  Zack Weinberg  <zackw@panix.com>
3085
3086         * gensupport.c: Define get_insn_name and record_insn_name here.
3087         (read_md_rtx): Call record_insn_name as appropriate.
3088         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3089         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3090         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3091         record_insn_name.
3092         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3093         (BUILD_VARRAY): Delete.
3094         (genprognormal): Rename genprogmd.  Fold in all programs from
3095         genprognoprint; also attrtab.
3096         (build/genattrtab): Just mention genautomata.o and varray.o.
3097         Reorganize a bit, add comments to make the categories clearer.
3098
3099 2006-01-22  Zack Weinberg  <zackw@panix.com>
3100
3101         * genconditions.c (condition_table, add_condition): Delete.
3102         (write_conditions): Don't emit n_insn_conditions nor
3103         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3104         inside the table, with no #else clause ...
3105         (write_header): ...not here.
3106         (write_writer): New function.
3107         (main): Don't initialize condition_table.  Use add_c_test.
3108         Call write_writer.
3109         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3110         files on the command line.
3111         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3112         Return -1 if there is no entry in the table, don't abort.
3113         (add_c_test, traverse_c_tests): New functions.
3114         * gensupport.h (insn_elision_unavailable, insn_conditions)
3115         (n_insn_conditions): Delete declarations.
3116         (add_c_test, traverse_c_tests): Declare.
3117         * read-rtl.c: Include gensupport.h.
3118         (read_conditions): New function.
3119         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3120         (read_rtx_1): If we get EOF when we were looking for an initial
3121         open paren, return 0.  Call read_conditions when appropriate.
3122         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3123         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3124         or change them to build/gencondmd.o, as appropriate.  Remove
3125         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3126         from $(simple_generated_c).  For all files remaining in those
3127         two lists, add insn-conditions.md to the generator command line.
3128         Give insn-constants.h/s-constants their own rules.  Add rules
3129         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3130         (build/read-rtl.o): Depend on gensupport.h.
3131         (genprognormal): Include preds.
3132         (genprogearly): Rename genprognoprint; only difference is now that
3133         they don't link with $(BUILD_PRINT).
3134         * dummy-conditions.c: Delete.
3135
3136 2006-01-22  Zack Weinberg  <zackw@panix.com>
3137
3138         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3139         Declare vectors of int, char, and locstr.
3140         (locstr): New typedef.
3141         (struct extraction): Make all array fields into bare pointers.
3142         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3143         (insn_code_number): Delete.
3144         (accum_extract): New struct.
3145         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3146         (gen_insn): Take insn_code_number as an argument.  Use an
3147         accum_extract structure instead of loading data directly into
3148         a struct extraction, and having to know how big it might get.
3149         (walk_rtx): Operate entirely on an accum_extract structure.
3150         (print_path): Avoid unnecessary use of printf.
3151         (print_header): New function, split out of main.  Distinguish
3152         more carefully between an unrecognizable insn and an insn that
3153         has the code number of a define_expand.
3154         (main): Pass insn_code_number to gen_insn.  Call print_header
3155         only after parsing.  Avoid unnecessary use of printf.
3156         * Makefile.in (build/vec.o): New rule.
3157         (build/genextract): Depend on build/vec.o.
3158         (build/genextract.o): Don't depend on insn-config.h.
3159
3160 2006-01-22  Zack Weinberg  <zackw@panix.com>
3161
3162         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3163         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3164         practical.  Eliminate per-generator-program link rules.
3165
3166 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3167
3168         PR middle-end/24437
3169         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3170         with a call expr to ...
3171         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3172
3173 2006-01-23  Richard Guenther  <rguenther@suse.de>
3174
3175         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3176         before make_edge with conditional EDGE_TRUE_VALUE.
3177
3178 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3179         Jan Hubicka  <jh@suse.cz>
3180         Richard Guenther  <rguenther@suse.de>
3181
3182         PR rtl-optimization/25654
3183         * cfgexpand.c (aggregate_contains_union_type): New function.
3184         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3185         for structure variables that contain a union type.
3186
3187 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3188
3189         * gengtype.c (new_structure): Return the structure.
3190         (create_option): Add an extra "next" argument.
3191         (create_field): New function.
3192         (adjust_field_rtx_def): Use create_option and create_field.
3193         Remove a now-unnecessary call to find_structure.
3194         (adjust_field_tree_def): Likewise.
3195         (note_yacc_type): Remove an unnecessary call to find_structure.
3196         * gengtype.h (new_structure): Return the structure.
3197         (create_option): Add an extra argument.
3198         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3199         (option): Adjust calls to create_option.
3200
3201 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3202
3203         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3204
3205 2006-01-22  Paul Brook  <paul@codesourcery.com>
3206         Peter Barada  <peter@the-baradas.com>
3207
3208         * config/m68k/m68k.md: Add Coldfire FPU support.
3209         Define FP mode macro and associated attributes.
3210         Use it for float mode patterns.
3211         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3212         (LIBCALL_VALUE): Use m68k_libcall_value.
3213         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3214         (m68k_function_value): Ditto.
3215         (emit_move_sequence): Ditto.
3216         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3217         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3218         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3219         (MULTILIB_EXCEPTIONS): Ditto.
3220         * config/m68k/m68k.opt: Add mcfv4e.
3221         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3222         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3223         (m68k_output_function_prologue): Save ColdFire FPU registers.
3224         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
3225         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
3226         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
3227         ColdFire FPU registers.
3228         (m68k_libcall_value, m68k_function_value): New functions.
3229         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
3230         (LIBCALL_VALUE): Use m68k_libcall_value.
3231         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
3232         (MASK_COLDFIRE): Add MASK_CFV4E.
3233         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
3234         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
3235         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
3236         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
3237         (GO_IF_LEGITIMATE_ADDRESS): Use it.
3238         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
3239         * doc/invoke.tex: Document -mcfv4e on m68k.
3240
3241 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
3242
3243         * doc/contribute.texi: Change CVS to SVN and update the corresponding
3244         URL.
3245
3246 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3247
3248         PR c++/16190
3249         * c-opts.c (c_common_handle_option): Don't include
3250         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
3251         * doc/invoke.texi (C++ Dialect Options): Document that
3252         -Wnon-virtual-dtor is no longer included in -Wall.
3253
3254 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
3255
3256         * gcov.c (print_version), gcov-dump.c (print_version),
3257         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
3258         dates.
3259
3260 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
3261
3262         * df-scan.c (problem_SCAN): Added NULL reset function.
3263         (df_scan_reset_blocks): Added code to call reset block function
3264         (df_bb_refs_delete) Fixed comment.
3265         (df_insn_refs_delete): Made tolerant of deleting non existent info
3266         for dataflow problems that need to be reset.
3267         * df-core.c (df_set_blocks): Ditto.
3268         * df.h (struct df_problem): Added reset_fun.
3269         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
3270         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
3271         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
3272         functions to clear out all references to def-use or use-def chains.
3273
3274 2006-01-21  Ben Elliston  <bje@au.ibm.com>
3275
3276         * varasm.c (assemble_real): Initialise data array.
3277
3278 2006-01-20  Paul Brook  <paul@codesourcery.com>
3279
3280         Merge from csl-arm-branch.
3281         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
3282         * config/arm/arm.md (movdi): Force operands[1] to a register
3283         if we have a non-register source.
3284         (*arm_movdi, *movdf_soft_insn): Require that one of the
3285         operands be a register.
3286         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
3287         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
3288
3289 2006-01-20  DJ Delorie  <dj@redhat.com>
3290
3291         * varasm.c (initialize_constant_valid_p): Allow pointers
3292         initialized from integer constants of lesser precision.
3293         (output_constant): Allow non-int-sized pointer modes to be
3294         initialized from integer constants.
3295
3296 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
3297
3298         PR libstdc++/25524
3299         * cppdefault.h (struct default_include): Add multilib flag.
3300         * cppdefault.c (cpp_include_defaults): Set it.
3301         * c.opt (-imultilib): New option.
3302         * c-opts.c (imultilib): New.
3303         (c_common_handle_option): Handle -imultilib.
3304         (c_common_post_options): Likewise.
3305         * c-incpath.c (add_standard_paths, register_include_chains):
3306         Likewise.
3307         * c-incpath.h (register_include_chains): Add extra parameter.
3308         * gcc.c (do_spec_1): Generate -imultilib option.
3309         (The Specs Language): Update %I description.
3310         (process_command): Update copyright notice.
3311         * doc/cppopts.texi (-imultilib): Document.
3312         * doc/invoke.texi (-imultilib): Include in option summary.
3313         (%I): Update specs documentation.
3314
3315 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3316
3317         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
3318
3319 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
3320
3321         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
3322         label numbers.
3323
3324 2006-01-20  Richard Guenther  <rguenther@suse.de>
3325         Steven Bosscher <stevenb.gcc@gmail.com>
3326
3327         PR rtl-optimization/24626
3328         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
3329         EDGE_TRUE_VALUE if in RTL mode.
3330
3331         Revert
3332         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
3333         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
3334
3335 2006-01-20  Dirk Mueller  <dmueller@suse.com>
3336
3337         PR c++/5520
3338         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
3339         instead of a special NOP marker.
3340         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
3341         NOP marker handling.
3342         * c-common.h (empty_body_warning): Add forward declaration.
3343         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
3344         Now uses IS_EMPTY_STMT() instead of special NOP markers.
3345
3346 2006-01-20  Paul Brook  <paul@codesourcery.com>
3347
3348         * Makefile.in (lang_checks): Keep going if mkdir fails.
3349
3350 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3351
3352         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
3353         be able to clean out basic block when not necessary.
3354         (df_scan_free): Fixed to properly delete information if df is
3355         unused before calling df_finish.
3356         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
3357         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
3358         or comment typos.
3359         (df_bb_refs_delete): New function.
3360         (df_refs_delete): Moved per block code to df_bb_refs_delete.
3361         * df-core.c (df_set_blocks): Added code to properly clean out
3362         unused blocks if they are not part of the blocks to consider.
3363         Added additional null check.
3364         (df_compact_blocks): Added basic block parameter to free_bb_fun to
3365         be able to clean out basic block when not necessary
3366         * df.h (df_free_bb_function): Ditto.
3367         (df_bb_refs_delete): New function.
3368         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
3369         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
3370         basic block parameter to be able to clean out basic block when not
3371         necessary.
3372         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
3373         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
3374         Fixed to properly delete information if df is unused before
3375         calling df_finish.
3376
3377 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3378
3379         PR rtl-optimization/25799
3380         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
3381         Corrected confluence operator to remove bits from op2 before oring
3382         with op1 rather than removing bits from op1.
3383         (df_ru_transfer_function): Corrected test on wrong bitmap which
3384         caused infinite loop.  Both of these problems were introduced in
3385         the dataflow rewrite.
3386
3387 2006-01-19  DJ Delorie  <dj@redhat.com>
3388
3389         * reload1.c (find_reload_regs): Note the details of reload
3390         failures in the dump file.
3391         (spill_failure): Likewise.
3392
3393 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3394
3395         * loop-iv.c: Include df.h and hashtab.h.
3396         (enum iv_grd_result): New enum.
3397         (DF_REF_IV, DF_REF_IV_SET): New macros.
3398         (struct biv_entry): New.
3399         (df, bivs): New global variables.
3400         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
3401         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
3402         Removed.
3403         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
3404         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
3405         analyzed_for_bivness_p, record_biv): New functions.
3406         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
3407         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
3408         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
3409         UD chains.
3410         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
3411         analysed.
3412         (iv_number_of_iterations): Use new interface to iv analysis.
3413         * loop-unroll.c: Do not include varray.h.
3414         (analyze_iv_to_split_insn): Use new interface to iv
3415         analysis.
3416         * loop-unswitch.c (may_unswitch_on): Ditto.
3417         * df.c (df_bitmaps_free): Only work for bbs for that structures are
3418         allocated.
3419         (df_bb_modify): Realloc tables to the new index.
3420         (df_find_use): New function.
3421         * df.h (df_find_use): Declare.
3422         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
3423         outmode.
3424         * cfgloop.h (struct rtx_iv): Remove analysed field.
3425         (iv_get_reaching_def): Removed.
3426         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
3427         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
3428         (loop-iv.o): Add df.h and hashtab.h dependency.
3429         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
3430
3431 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
3432
3433         PR target/25668
3434         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
3435         Double TFmode.
3436         (__floatundisf, __floatundidf): Likewise.
3437         * libgcc2.h (IS_IBM_EXTENDED): Define.
3438
3439 2006-01-19  DJ Delorie  <dj@redhat.com>
3440
3441         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
3442
3443 2006-01-19  Paul Brook  <paul@codesourcery.com>
3444
3445         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
3446         as nothrow when unwinding tables are disabled.
3447
3448 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3449
3450         PR testsuite/25171
3451         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
3452         of bit-field" when in system header.
3453
3454 2006-01-19  DJ Delorie  <dj@redhat.com>
3455
3456         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
3457         the 16 bit shift limit of the m16c.
3458
3459 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
3460
3461         PR target/22099
3462         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
3463         * config/i386/i386.c (output_set_got): Output the label if we have one
3464         for the TARGET_DEEP_BRANCH_PREDICTION case.
3465
3466 2006-01-19  Jan Hubicka  <jh@suse.cz>
3467             H.J. Lu  <hongjiu.lu@intel.com>
3468             Evandro Menezes <evandro.menezes@amd.com>
3469
3470         * invoke.texi (generic): Document
3471         (i686) Update.
3472         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
3473         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
3474         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
3475         (x86_use_incdec, x86_pad_returns): New variables
3476         (TARGET_CPU_DEFAULT_generic): New constant
3477         (TARGET_CPU_DEFAULT_NAMES): Add generic.
3478         (enum processor_type): Add generic32 and generic64.
3479         * i386.md (cpu attribute): Add generic32/generic64
3480         (movhi splitter): Behave sanely when both partial_reg_dependency and
3481         partial_reg_stall are set.
3482         (K8 splitters): Enable for generic as well.
3483         * predicates.md (incdec_operand): Use TARGET_INCDEC
3484         (aligned_operand): Avoid memory mismatch stalls.
3485         * athlon.md: Enable for generic64, new patterns for 128bit moves.
3486         * ppro.md: Enable for generic32
3487         * i386.c (generic64_cost, generic32_cost): New.
3488         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
3489         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
3490         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
3491         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
3492         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
3493         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
3494         x86_partial_reg_dependency, x86_memory_mismatch_stall,
3495         x86_accumulate_outgoing_args, x86_prologue_using_move,
3496         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
3497         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
3498         Enable for generic.
3499         (x86_use_incdec, x86_pad_returns): New.
3500         (override_options): Add generic32 and generic64, translate "generic"
3501         to generic32/generic64 and "i686" to "generic32", refuse
3502         "generic32"/"generic64" as arch target.
3503         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
3504         (ix86_reorg): Honor PAD_RETURNS.
3505
3506 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
3507
3508         * tree-pretty-print.c (dump_generic_node): Handle
3509         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
3510         * cgraph.c (cgraph_expand_queue): Rename from
3511         cgraph_analyze_queue.  Update all users.
3512         * cgraphunit.c (cgraph_assemble_pending_functions): Process
3513         cgraph_expand_queue.
3514         (cgraph_expand_all_functions): Likewise.
3515         (cgraph_finalize_pending_functions): Remove.  Update callers.
3516
3517         * tree.h (OMP_DIRECTIVE_P): Define.
3518         (OMP_PARALLEL_FN): Define.
3519         (OMP_PARALLEL_DATA_ARG): Define.
3520         (OMP_SECTIONS_SECTIONS): Define.
3521         * tree-pass.h (pass_expand_omp): Declare.
3522         * omp-low.c (struct omp_region): Declare.
3523         (struct omp_context): Remove fields 'parallel_type',
3524         'parallel_start_ix' and 'parallel_start_additional_args'.
3525         Update all users.
3526         (struct omp_for_data): Rename from struct expand_omp_for_data.
3527         (omp_regions): New static variable.
3528         (root_omp_region): New static variable.
3529         (find_omp_clause): Make static.
3530         (is_in_combined_parallel_ctx): Remove.
3531         (is_combined_parallel): New.
3532         (extract_omp_for_data): Move earlier in the file.
3533         (workshare_safe_to_combine_p): New.
3534         (get_ws_args_for): New.
3535         (determine_parallel_type): Move earlier in the file.
3536         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
3537         child function.
3538         (omp_copy_decl): Likewise.
3539         (create_omp_child_function): Likewise.
3540         (lookup_omp_region): New.
3541         (dump_omp_region): New.
3542         (debug_omp_region): New.
3543         (debug_all_omp_regions): New.
3544         (new_omp_region): New.
3545         (scan_omp_parallel): If parallel_nesting_level > 1, the
3546         directive is nested within another parallel directive.
3547         Set OMP_PARALLEL_FN.
3548         (scan_omp_for): Do not try to handle combined parallel+for
3549         cases.
3550         Remove FIXME comment.
3551         (scan_omp_nested): Remove.
3552         (scan_omp_1): Do not call scan_omp_nested when
3553         parallel_nesting_level is > 1.
3554         Do not change the DECL_CONTEXT of local variables found.
3555         (lookup_decl_in_outer_ctx): New.
3556         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
3557         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
3558         (lower_reduction_clauses): Rename from expand_reduction_clauses.
3559         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
3560         If CTX is nested, lookup VAR in the outer context when
3561         building copy assignment.
3562         (lower_send_clauses): Rename from expand_send_clauses.
3563         If CTX is nested, lookup VAR in the outer context when
3564         building copy assignments.
3565         (lower_send_shared_vars): Rename from expand_send_shared_vars.
3566         If CTX is nested, lookup VAR in the outer context when
3567         building copy assignments.
3568         (expand_parallel_call): Rename from build_parallel_call.
3569         Handle combined parallel+workshare cases.
3570         Re-implement to emit code into the CFG.
3571         (list2chain): New.
3572         (expand_omp_parallel): Re-implement to emit code into the CFG.
3573         Call move_sese_region_to_fn to outline the sub-graph
3574         containing the parallel region.
3575         (expand_omp_for_1): Remove.
3576         (expand_omp_for_generic): Re-implement to emit code into the
3577         CFG.
3578         (expand_omp_for_static_nochunk): Likewise.
3579         (expand_omp_for_static_chunk): Likewise.
3580         (expand_omp_for): Likewise.
3581         (expand_omp_sections): Likewise.
3582         (remove_exit_barriers): New.
3583         (expand_omp_synch): New.
3584         (expand_omp): New.
3585         (build_omp_regions_1): New.
3586         (build_omp_regions): New.
3587         (execute_expand_omp): New.
3588         (gate_expand_omp): New.
3589         (pass_expand_omp): Define.
3590         (lower_omp_sections): Rename from expand_omp_sections.
3591         Set OMP_SECTIONS_SECTIONS.
3592         (lower_omp_single_simple): Rename from expand_omp_single_simple.
3593         (lower_omp_single_copy): Rename from expand_omp_single_copy.
3594         (lower_omp_single): Rename from expand_omp_simple.
3595         (lower_omp_master): Rename from expand_omp_master.
3596         (lower_omp_ordered): Rename from expand_omp_ordered.
3597         (lower_omp_critical): Rename from expand_omp_critical.
3598         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
3599         (lower_omp_for): Re-implement.
3600         (lower_omp_parallel): Re-implement.
3601         (lower_regimplify): Rename from expand_regimplify.
3602         (lower_omp_1): Rename from expand_omp_1.
3603         If there are syntax errors in the program, replace every
3604         OpenMP directive with NOP.
3605         Call lower_omp_* instead of expand_omp_*.
3606         (lower_omp): Rename from expand_omp.
3607
3608         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
3609         * tree-gimple.h (enum omp_parallel_type): Remove.
3610         (gimple_boolify): Declare extern.
3611         (find_omp_clause, determine_parallel_type): Remove.
3612
3613         * gimple-low.c (lower_omp_directive): New.
3614         (lower_stmt): Call it.
3615         (record_vars_into): Move from ...
3616         (record_vars): ... here.
3617         Call record_vars_into with current_function_decl.
3618
3619         * gimplify.c (struct gimplify_ctx): Remove fields
3620         combined_pre_p and combined_ctxp.  Update users.
3621         (get_formal_tmp_var): Add documentation.
3622         (gimple_boolify): Make extern.
3623         (gimplify_expr_in_ctx): Remove.  Update callers.
3624         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
3625         will always be a BIND_EXPR.
3626         (gimplify_expr): Handle OMP_RETURN_EXPR.
3627         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
3628         (OMP_PARALLEL): Add 3 operands.
3629         (OMP_SECTIONS): Add 1 operand.
3630         (OMP_RETURN_EXPR): Define.
3631
3632         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
3633         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
3634         * tree-iterator.c (alloc_stmt_list): Assert that we are not
3635         creating a circular free list.
3636         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
3637
3638         * tree-flow.h (move_sese_region_to_fn): Declare.
3639         (record_vars_into): Declare.
3640         * tree-cfg.c (make_omp_sections_edges): New.
3641         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
3642         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
3643         OMP_SECTIONS and OMP_SECTION.
3644         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
3645         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
3646         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
3647         (gather_blocks_in_sese_region): New.
3648         (struct move_stmt_d): Declare.
3649         (move_stmt_r): New.
3650         (move_block_to_fn): New.
3651         (move_sese_region_to_fn): New.
3652
3653         * passes.c (init_optimization_passes): Schedule
3654         pass_expand_omp after pass_init_datastructures.
3655
3656         * tree-ssa-operands.c (get_expr_operands): Handle
3657         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
3658         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
3659
3660 2006-01-19  Jeff Law  <law@redhat.com>
3661
3662         * tree-vrp.c (extract_range_from_assert): Refine the result range
3663         if the variable referenced by the ASSERT_EXPR has a range and
3664         either the tentative result range or the previous range is a
3665         VR_ANTI_RANGE.
3666
3667 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3668
3669         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
3670
3671 2006-01-19  Jan Hubicka  <jh@suse.cz>
3672
3673         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
3674
3675 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
3676
3677         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
3678         (expand_compound_operation, expand_field_assignment): Fail if the
3679         bit lengths of an extract operation are out of range.
3680         (make_extraction): Compute wanted_inner_mode based on the position
3681         and length of the extraction.  Make it extraction_mode for non-constant
3682         positions, and do not modify offset in that case.  When generating a
3683         new MEM, use a mode that can hold the extraction while keeping correct
3684         alignment.  Remove code that supported MEMs wrapped by USEs.
3685         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
3686
3687 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
3688
3689         * config/s390/s390.md ("Y", "y"): New mode attribute.
3690         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
3691         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
3692         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
3693         "*addsi3_imm_cc", "*addsi3_carry1_cc",
3694         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
3695         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
3696         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
3697         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
3698         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
3699         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
3700         "addsi3", "subsi3"): Insn patterns removed.
3701         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
3702         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
3703         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
3704         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
3705         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
3706         "*sub<mode>3_cconly2"): New insn patterns.
3707         ("addsi3", "subsi3"): New expanders.
3708
3709 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
3710
3711         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
3712         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
3713         existing STMT_VINFO_VECTYPE if available.
3714         (vect_mark_relevant): Add special handling for stmts that are
3715         marked as STMT_VINFO_IN_PATTERN_P.
3716         (vect_analyze_loop): Call vect_pattern_recog.
3717         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
3718         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
3719         stmt_info.
3720         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
3721         (vect_recog_func_ptr): New function-pointer type.
3722         * tree-vect-patterns.c: New file.
3723         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
3724         (vect_recog_dot_prod_pattern, vect_pattern_recog):
3725         (vect_pattern_recog_1): New functions.
3726         (vect_pattern_recog_funcs): New array of function pointers.
3727
3728         * tree-vectorizer.h (ternary_op): New enum value.
3729         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
3730         declaration. Revised documentation. Removed redundant dump prints.
3731         Removed redundant argument. Added support for reduction patterns.
3732         (vectorizable_reduction): Added support for reduction patterns.
3733         (vect_transform_stmt): Added support for patterns.
3734
3735         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
3736         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
3737         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
3738         (expand_widen_pattern_expr): New function.
3739         (init_optabs): Initialize new optabs udot_prod_optab,
3740         sdot_prod_optab.
3741         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
3742         (sdot_prod_optab, udot_prod_optab): Define new optabs.
3743         (expand_widen_pattern_expr): New function declaration.
3744         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
3745         tree-codes.
3746         * tree-inline.c (estimate_num_insns_1): Added cases for new
3747         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3748         * tree-pretty-print.c (dump_generic_node): Likewise.
3749         (op_prio): Likewise.
3750         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3751         * tree-ssa-operands.c (get_expr_operands): Added case for
3752         DOT_PROD_EXPR.
3753         * tree-vect-patterns.c (widened_name_p): New function.
3754         (vect_recog_dot_prod_pattern): Added function implementation.
3755         * tree-vect-transform.c (get_initial_def_for_reduction): Added
3756         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
3757         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
3758         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
3759
3760         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
3761         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
3762         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
3763         (init_optabs): Initialize new optabs widen_ssum_optab,
3764         widen_usum_optab.
3765         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
3766         (widen_ssum_optab, widen_usum_optab): Define new optabs.
3767         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
3768         use instead of type of def.
3769         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
3770         function implementation.
3771         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
3772         widen_ssumv8hi): New.
3773
3774         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
3775         patterns.
3776
3777 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3778
3779         PR c/25805
3780         * c-decl.c (add_flexible_array_elts_to_size): New function.
3781         (finish_decl): Use it.
3782
3783 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
3784
3785         * diagnostic.h: Include options.h.
3786         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
3787         dependancies for diagnostic.h.
3788         * Makefile.in (DIAGNOSTIC_H): Add options.h.
3789
3790 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
3791
3792         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
3793         (ssa_ro_call_cache_valid): Ditto.
3794         * tree-ssa-alias.c (sort_tags_by_id): New function.
3795         (init_transitive_clobber_worklist): Ditto.
3796         (add_to_worklist): Ditto.
3797         (mark_aliases_call_clobbered): Ditto.
3798         (compute_tag_properties): Ditto.
3799         (set_initial_properties): Ditto.
3800         (compute_call_clobbered): Ditto.
3801         (compute_may_aliases):  Call compute_call_clobbered and grouping.
3802         (compute_flow_sensitive_aliasing): Remove clobbering related code.
3803         (compute_flow_insensitive_aliasing): Grouping now happens in our
3804         caller.
3805         (setup_pointers_and_addressables): Remove clobbering related code.
3806         (add_may_alias): Ditto.
3807         (replace_may_alias): Ditto.
3808         (get_nmt_for): Ditto.
3809         (create_global_var):
3810         (is_escape_site): Return an escape_type enumeration.
3811         * tree-flow-inline.h (is_call_clobbered):  Global var does not
3812         imply call clobbered.
3813         (mark_call_clobbered): Take a reason for marking this. Remove
3814         marking of globalness, and cache invalidation.
3815         (clear_call_clobbered): Remove cache invalidation code.
3816         * tree-dfa.c (dump_variable): If details is on, dump the reason
3817         for escaping.
3818         * tree-outof-ssa.c (create_temp): Copy escape mask from original
3819         variable.
3820         * tree-flow.h (struct ptr_info_def): Add escape mask member.
3821         (struct var_ann_d): Ditto.
3822         (enum escape_type): New.
3823         (mark_call_clobbered): Adjust prototype.
3824         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
3825         are never call clobbered.
3826         Record reasons for escaping.
3827         * tree-ssa-structalias.h (is_escape_site): Update prototype.
3828         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
3829         (ssa_ro_call_cache_valid): Ditto.
3830         (clobbered_v_may_defs): Ditto.
3831         (clobbered_vuses): Ditto.
3832         (ro_call_vuses): Ditto.
3833         (clobber_stats): New.
3834         (init_ssa_operands): Zero out clobber stats.
3835         (fini_ssa_operands): Print out clobber stats.
3836         (get_call_expr_operands): Pass callee fndecl to
3837         add_call_read_ops).
3838         (add_call_clobber_ops): Remove use of cache.
3839         Add use of PURE_CONST information.
3840         (add_call_read_ops): Remove use of cache.
3841         Add use of static not_read information.
3842
3843 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
3844
3845         Introduce TLS descriptors for i386 and x86_64.
3846         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
3847         (TARGET_ANY_GNU_TLS): New macro.
3848         (enum tls_dialect): Added TLS_DIALECT_GNU2.
3849         (struct machine_function): Add tls_descriptor_call_expanded_p.
3850         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
3851         (ix86_current_function_calls_tls_descriptor): Likewise.
3852         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
3853         (override_options): Introduce gnu2 tls dialect.
3854         (ix86_frame_pointer_required): Functions containing TLSCALLs are
3855         not leaves.
3856         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
3857         Likewise.
3858         (legitimize_tls_address): Adjust logic for GNU2 TLS.
3859         (ix86_init_machine_status): Initialize new field.
3860         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
3861         (ix86_tls_module_base): New.
3862         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
3863         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
3864         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
3865         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
3866         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
3867         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
3868         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
3869         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
3870         * config/i386/predicates.md (tls_modbase_operand): New.
3871         (tp_or_register_operand): New.
3872
3873 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
3874
3875         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
3876         (look_for_address_of): Ditto.
3877         (ipa_init): Walk the function decls.
3878         (static_execute): Don't set readonly on FUNCTION_DECL's.
3879
3880 2006-01-18  Roger Sayle  <roger@eyesopen.com>
3881
3882         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
3883         for shifts where the source and destination registers are different.
3884
3885 2006-01-18  Paul Brook  <paul@codesourcery.com>
3886
3887         Merge from csl-arm-branch.
3888         2005-03-14  Julian Brown  <julian@codesourcery.com>
3889         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
3890         (aeabi_llsl): Likewise.
3891         (ashrdi3): Likewise.
3892         (aeabi_lasr): Likewise.
3893         (lshrdi3): Likewise.
3894         (aeabi_llsr): Likewise.
3895         2005-03-10  Julian Brown  <julian@codesourcery.com>
3896         * config.gcc: Disable shared libgcc for SymbianOS.
3897         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
3898
3899 2006-01-18  DJ Delorie  <dj@redhat.com>
3900
3901         * c-pragma.c (handle_pragma_diagnostic): New.
3902         (init_pragma): Register it.
3903         * doc/extend.texi: Document it.
3904
3905         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
3906         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
3907         (diagnostic_context): Add classify_diagnostic[].
3908         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
3909         as errors if they're overridden to DK_WARNING.
3910         (diagnostic_initialize): Initialize classify_diagnostic[].
3911         (diagnostic_set_kind_override): New.
3912         (diagnostic_report_diagnostic): Check for kind changes.
3913         * opts.c (common_handle_option): Take lang_mask.  Update callers.
3914         Handle OPT_Werror_.
3915         * common.opt (Werror=): New.
3916         * doc/invoke.texi: Document -Werror=*
3917
3918 2006-01-18  Jeff Law  <law@redhat.com>
3919
3920         * tree-vrp.c (test_for_singularity): Correct test for new
3921         min limit.  Use operand_equal_p rather than pointer equality
3922         for testing if new min/max values are equal.
3923
3924         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3925         using range information until after propagation and folding.
3926
3927 2006-01-18  Richard Henderson  <rth@redhat.com>
3928             Aldy Hernandez  <aldyh@redhat.com>
3929             Jakub Jelinek  <jakub@redhat.com>
3930             Diego Novillo  <dnovillo@redhat.com>
3931
3932         * omp-low.c: New file.
3933         * c-omp.c: New file.
3934
3935 2006-01-18  Richard Henderson  <rth@redhat.com>
3936             Jakub Jelinek  <jakub@redhat.com>
3937             Diego Novillo  <dnovillo@redhat.com>
3938
3939         * doc/invoke.texi: Document -fopenmp.
3940         * tree-dump.h (debug_function): Declare.
3941         * hooks.c (hook_bool_tree_bool_false): New function.
3942         (hook_tree_tree_null): Remove.
3943         (hook_tree_tree_tree_null): New.
3944         * hooks.h: Update to match.
3945         * tree-pretty-print.c (debug_tree_chain): New.
3946         (print_generic_expr): Handle TDF_CHAIN.
3947         (dump_generic_node): Handle BLOCK.
3948         Do not abort with incomplete SWITCH_EXPRs.
3949         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3950         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3951         print space after directive name.
3952         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3953         Handle OMP_MASTER and OMP_ORDERED.
3954         Handle printing of OMP_BODY just in one place, goto
3955         dump_omp_body in the rest of OMP_* nodes that have
3956         OMP_BODY.
3957         Don't handle clause nodes here.  Update omp statements to
3958         use dump_omp_clauses.
3959         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3960         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3961         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3962         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3963         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3964         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3965         Adjust output for GOMP_PARALLEL.
3966         (dump_omp_clauses): New.
3967         (print_declaration): Dump DECL_VALUE_EXPR.
3968         (op_symbol_1): Split out of op_symbol.
3969         (dumping_stmts): Remove.  Update all users.
3970         * cgraph.c (cgraph_analyze_queue): New.
3971         (cgraph_add_new_function): New.
3972         * cgraph.h (cgraph_analyze_queue): Declare.
3973         (cgraph_add_new_function): Declare.
3974         (cgraph_lower_function): Remove.
3975         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3976         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3977         and TYPE_P nodes in its default clause.
3978         (empty_body_p): New.
3979         (tree_range_check_failed): New.
3980         (build5_stat): New.
3981         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3982         OMP_CLAUSE_REDUCTION_MERGE,
3983         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3984         OMP_CLAUSE_PRIVATE_DEBUG,
3985         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3986         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3987         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3988         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3989         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3990         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3991         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3992         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3993         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3994         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3995         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3996         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3997         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3998         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3999         (TREE_RANGE_CHECK): New.
4000         (empty_body_p): Declare.
4001         (enum omp_clause_default_kind): New.
4002         (build_string_literal): Declare.
4003         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
4004         (build5_stat, build5): Declare.
4005         * tree-pass.h (TDF_CHAIN): Define.
4006         * tree-pass.h (PROP_gimple_lomp): Define.
4007         (pass_lower_omp): Declare.
4008         * diagnostic.h (debug_tree_chain): Declare.
4009         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
4010         mode_for_size.
4011         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
4012         * builtins.c (build_string_literal): Make extern.
4013         * gcc.c (include_spec_function): New.
4014         (static_spec_functions): Add it.
4015         (main): Move load of libgomp.spec ...
4016         (LINK_COMMAND_SPEC): ... here.
4017         (link_gomp_spec): New.
4018         (static_specs): Include it.
4019         (LINK_COMMAND_SPEC): Add link_gomp.
4020         (GOMP_SELF_SPECS): New.
4021         (driver_self_specs): Include it.
4022         (switch_matches): Don't mark inline.
4023         (main): Load libgomp.spec.
4024         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
4025         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
4026         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
4027         * tree-gimple.h (enum omp_parallel): Declare.
4028         (determine_parallel_type): Declare.
4029         (omp_firstprivatize_variable): Declare.
4030         (omp_reduction_init): Declare.
4031         (diagnose_omp_structured_block_errors): Declare.
4032         (struct walk_stmt_info): Add want_return_expr.
4033         (struct walk_stmt_info): Add want_bind_expr, want_locations.
4034         (find_omp_clause): Declare.
4035         (insert_field_into_struct): Declare.
4036         (struct walk_stmt_info): Move from tree-nested.c
4037         (walk_stmts): Declare.
4038         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
4039         to 200505.
4040         * cgraphunit.c (cgraph_lower_function): Make static.
4041         (cgraph_finalize_pending_functions): New.
4042         (cgraph_finalize_function): Call it.
4043         (cgraph_finalize_compilation_unit): Likewise.
4044         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
4045         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
4046         (BT_FN_UINT_UINT): New.
4047         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
4048         DEF_FUNCTION_TYPE_VAR_4): Document.
4049         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
4050         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
4051         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
4052         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
4053         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
4054         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
4055         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
4056         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
4057         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
4058         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
4059         into separate files.
4060         (DEF_GOMP_BUILTIN): New.
4061         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
4062         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
4063         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
4064         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
4065         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
4066         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
4067         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
4068         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
4069         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
4070         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
4071         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
4072         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
4073         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
4074         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
4075         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
4076         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
4077         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
4078         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
4079         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
4080         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
4081         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
4082         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
4083         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
4084         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
4085         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
4086         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
4087         * sync-builtins.def: New file, moved from builtins.def.
4088         * omp-builtins.def: New file, moved from builtins.def.
4089         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
4090         * gimple-low.c (lower_function_body): Clear data.
4091         (lower_stmt): Do not handle COMPOUND_EXPR.
4092         Remove call to print_node_brief.
4093         * c-tree.h (c_finish_omp_clauses): New prototype.
4094         (C_DECL_THREADPRIVATE_P): Define.
4095         (lookup_name_no_remap, c_omp_remap_private): Remove
4096         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
4097         (check_for_loop_decls): Update decl.
4098         (lookup_name_no_remap, c_omp_remap_private): Declare.
4099         (build_indirect_ref, build_modify_expr, pushdecl,
4100         pushdecl_top_level): Move to c-common.h.
4101         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
4102         before the switch, but just in the 2 places that need it.
4103         * c-decl.c (diagnose_mismatched_decls): Do not check for
4104         mismatched thread-local attributes when OLDDECL is marked
4105         threadprivate and NEWDECL has no thread-local attributes.
4106         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
4107         (c_gimple_diagnostics_recursively): Rename from
4108         c_warn_unused_result_recursively.  Invoke
4109         diagnose_omp_structured_block_errors.
4110         (check_for_loop_decls): Return a singular decl found.
4111         * langhooks.c (lhd_omp_predetermined_sharing): Return
4112         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
4113         (lhd_omp_firstprivatize_type_sizes): New.
4114         (lhd_omp_assignment): New.
4115         (lhd_omp_predetermined_sharing): New.
4116         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
4117         (struct lang_hooks_for_types): Add
4118         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
4119         omp_predetermined_sharing, omp_disregard_value_expr,
4120         omp_private_debug_clause, omp_clause_default_ctor,
4121         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
4122         (c_finish_omp_clauses): New.
4123         (c_finish_bc_stmt): Diagnose break within omp for.
4124         (c_begin_omp_parallel, c_finish_omp_parallel): New.
4125         (build_unary_op): Return error_mark after reporting
4126         a readonly_error.
4127         (build_modify_expr): Likewise.
4128         * gimplify.c: Include optabs.h and pointer-set.h.
4129         (enum gimplify_omp_var_data): Declare.
4130         (struct gimplify_omp_ctx): Declare.
4131         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
4132         and combined_ctxp.
4133         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
4134         (push_gimplify_context, pop_gimplify_context): Allow nesting.
4135         (splay_tree_compare_decl_uid): New.
4136         (new_omp_context): New.
4137         (delete_omp_context): New.
4138         (gimple_add_tmp_var): Call omp_add_variable.
4139         (gimplify_bind_expr): Likewise.
4140         (gimplify_var_or_parm_decl): If omp_notice_variable returned
4141         true, disregard DECL_VALUE_EXPR on the decl if any.
4142         (gimplify_expr_in_ctx): New.
4143         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
4144         omp_add_variable, omp_notice_variable, omp_is_private
4145         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
4146         gimplify_adjust_omp_clauses, gimplify_omp_parallel
4147         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
4148         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
4149         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
4150         gimplify_omp_atomic): New.
4151         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4152         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4153         OMP_CRITICAL and OMP_ATOMIC.
4154         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
4155         * c-pragma.h (enum pragma_kind): Add
4156         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
4157         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
4158         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
4159         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
4160         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
4161         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
4162         PRAGMA_OMP_THREADPRIVATE.
4163         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4164         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4165         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
4166         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
4167         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
4168         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
4169         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
4170         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
4171         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
4172         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
4173         * tree-ssa-dce.c (find_control_dependence): Do not assume that
4174         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
4175         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
4176         OpenMP directives.
4177         (struct nesting_info): Add field_map,
4178         suppress_expansion, debug_var_chain.
4179         (create_nesting_tree): Initialize them.
4180         (lookup_field_for_decl): Use field_map.
4181         (get_nonlocal_debug_decl, get_local_debug_decl): New.
4182         (convert_local_omp_clauses): New.
4183         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
4184         (walk_body): Split out of walk_function.
4185         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
4186         (convert_nonlocal_reference): Handle omp statements.
4187         (convert_local_reference): Likewise.
4188         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
4189         (unnest_nesting_tree): New.
4190         (lower_nested_functions): Call it.
4191         (insert_field_into_struct): Make extern.
4192         (struct walk_stmt_info): Move to tree-gimple.h.
4193         (walk_stmts): Make extern.
4194         * omp-builtins.def: New file.
4195         * tree-iterator.c (expr_only): Clarify comment.
4196         * c-common.h (pushdecl_top_level, pushdecl,
4197         build_modify_expr, build_indirect_ref,
4198         c_finish_omp_master, c_finish_omp_critical,
4199         c_finish_omp_ordered, c_finish_omp_barrier,
4200         c_finish_omp_atomic, c_finish_omp_flush,
4201         c_finish_omp_for, c_split_parallel_clauses,
4202         omp_clause_default_kind, c_omp_sharing_predetermined,
4203         c_omp_remap_decl): Declare.
4204         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
4205         (OBJS-common): Add omp-low.o.
4206         (c-omp.o, omp-low.o): Add.
4207         (gimplify.o): Add dependency on $(OPTABS_H).
4208         (GTFILES): Add omp-low.c.
4209         (gt-stringpool.h): Add.
4210         * tree-cfg.c (set_bb_for_stmt): Do not update the
4211         block-to-labels map if we are currently expanding to RTL.
4212         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
4213         checks.
4214         Handle IDENTIFIER_NODE.
4215         (tree_verify_flow_info): Do not ICE when emitting error
4216         messages about invalid labels.
4217         (dump_function_to_file): Reset CFUN before emitting the body
4218         of the function.
4219         (debug_function): New.
4220         * passes.c (init_optimization_passes): Schedule
4221         pass_lower_omp.
4222         * langhooks-def.h (lhd_omp_predetermined_sharing,
4223         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
4224         Declare.
4225         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
4226         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
4227         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
4228         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
4229         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
4230         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
4231         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
4232         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
4233         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
4234         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
4235         (LANG_HOOK_DECLS): Use them.
4236
4237 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
4238             Richard Henderson  <rth@redhat.com>
4239             Jakub Jelinek  <jakub@redhat.com>
4240             Diego Novillo  <dnovillo@redhat.com>
4241
4242         * c-parser.c (pragma_omp_clause): Define.
4243         (c_parser_declaration_or_fndef): Document OpenMP syntax.
4244         (c_parser_compound_statement): Likewise.
4245         (c_parser_statement): Likewise.
4246         (c_parser_pragma): Handle omp pragmas.
4247         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
4248         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
4249         (c_parser_omp_clause_name, check_no_duplicate_clause,
4250         c_parser_omp_variable_list,
4251         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
4252         c_parser_omp_clause_copyprivate,
4253         c_parser_omp_clause_default,
4254         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
4255         c_parser_omp_clause_lastprivate,
4256         c_parser_omp_clause_nowait,
4257         c_parser_omp_clause_num_threads,
4258         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
4259         c_parser_omp_clause_reduction,
4260         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
4261         c_parser_omp_all_clauses, c_parser_omp_structured_block,
4262         c_parser_omp_atomic, c_parser_omp_barrier,
4263         c_parser_omp_critical, c_parser_omp_flush,
4264         c_parser_omp_for_loop, c_parser_omp_for,
4265         c_parser_omp_master, c_parser_omp_ordered,
4266         c_parser_omp_sections_scope, c_parser_omp_sections,
4267         c_parser_omp_parallel, c_parser_omp_single,
4268         c_parser_omp_construct, c_parser_omp_threadprivate): New.
4269         * c-pragma.c (init_pragma): Do omp pragma registration here.
4270         * c.opt (fopenmp): New flag.
4271
4272 2006-01-18  Eric Christopher  <echristo@apple.com>
4273
4274         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
4275         * config/darwin.h (GOMP_SELF_SPECS): Define.
4276
4277 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4278
4279         * rtl.h: Remove the prototype for reg_alloc.
4280
4281 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4282
4283         PR target/25731
4284         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
4285         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
4286         sjlj and dwarf2 exception handling.
4287         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
4288         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
4289         * pa/pa.c (function_value): Treat complex and vector types as
4290         aggregates.
4291         (function_arg): Likewise.  Only pass scalar floats in the floating
4292         point argument registers.
4293         * pa/t-slibgcc-dwarf-ver: New file.
4294         * pa/t-slibgcc-sjlj-ver: New file.
4295         * pa/t-slibgcc-elf-ver: Delete file.
4296
4297 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
4298
4299         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
4300         unlikely_test_section_p test.
4301
4302 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4303
4304         * mode-switching.c (optimize_mode_switching): Make it static.
4305         * basic-block.h: Remove the prototype for
4306         optimize_mode_switching.
4307
4308         * modulo-sched.c (sms_schedule): Make it static.
4309         * rtl.h: Remove the prototype for sms_schedule.
4310
4311         * postreload-gcse.c (gcse_after_reload_main): Make it static.
4312         * rtl.h: Remove the prototype for gcse_after_reload_main.
4313
4314         * reg-stack.c (reg_to_stack): Make it static.
4315         * rtl.h: Remove the prototype for reg_to_stack.
4316
4317         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
4318         Make them static.
4319         * rtl.h: Remove the prototypes for regrename_optimize and
4320         copyprop_hardreg_forward.
4321
4322 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
4323
4324         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
4325         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
4326         Test against the appropriate null constant for the mode.
4327         If 'fixup_overlap' is true, swap the operands if they overlap.
4328         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
4329         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
4330         alpha_split_tmode_pair and adjust for above change.
4331         * config/alpha/alpha.md (movtf_internal): Adjust call to
4332         alpha_split_tfmode_pair and rely on it to swap the operands.
4333         (movti_internal): New insn and post-reload splitter.
4334         (movti): New expander.
4335
4336 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
4337
4338         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
4339         operands.
4340
4341 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
4342
4343         * rtlanal.c (global_reg_mentioned_p_1,
4344         global_reg_mentioned_p): Remove.
4345         * rtl.h: Remove the prototype for global_reg_mentioned_p.
4346
4347         * flow.c (initialize_uninitialized_subregs): Make it static.
4348         * rtl.h: Remove the prototype for
4349         initialize_uninitialized_subregs.
4350
4351         * function.c (instantiate_virtual_regs): Make it static.
4352         * function.h: Remove the prototype for
4353         instantiate_virtual_regs.
4354
4355         * regmove.c (regmove_optimize, combine_stack_adjustments):
4356         Make them static.
4357         * rtl.h: Remove the prototypes for regmove_optimize and
4358         combine_stack_adjustments.
4359
4360 2006-01-17  Roger Sayle  <roger@eyesopen.com>
4361
4362         * config/i386/i386.c (COSTS_N_BYTES): New macro.
4363         (size_cost): Encode costs in bytes so that a reg-reg addition is
4364         equivalent to COSTS_N_INSNS(1).
4365         (override_options): Use the size_cost.branch_cost as the default
4366         ix86_branch_cost when optimizing for size.
4367
4368 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4369
4370         * Makefile.in (D32PBIT_FUNCS): New.
4371         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
4372         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
4373         D64PBIT_FUNCS and D128PBIT_FUNCS.
4374         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
4375         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
4376         D128PBIT are set.
4377         (decnumber_dep): Define.
4378         * doc/libgcc.texi (Decimal float library routines): New node.
4379         * config/dfp-bit.h, config/dfp-bit.c: New files.
4380
4381 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4382
4383         * expr.c (emit_move_change_mode): Always adjust addresses, not
4384         just during reload.  Copy replacements only during reload.
4385         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
4386         emit_move_via_integer.
4387
4388 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
4389
4390         * Makefile.in (check-%, check-consistency): Use $${srcdir}
4391         instead of $(srcdir) and ${srcdir}.
4392
4393 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
4394
4395         PR target/592
4396         PR middle-end/11135
4397         * arm.h (struct machine_function): Add pic_reg.
4398         * arm.c (arm_pic_register): Make unsigned.
4399         (arm_override_options): Only set arm_pic_register if
4400         TARGET_SINGLE_PIC_BASE.
4401         (use_return_insn): Only test for a pic register if it is fixed.
4402         (arm_compute_save_reg0_reg12_mask): Likewise.
4403         (thumb_compute_save_reg_mask): Likewise.
4404         (legitimate_pic_operand): Factor out some known invariants.
4405         (legitimize_pic_address): If we don't have a fixed pic register,
4406         then set up a pseudo in the function entry sequence.  Handle the
4407         pic base being in a pseudo.
4408         (arm_load_pic_register): Handle the pic register being in a pseudo.
4409         (arm_expand_prologue): Only set up the pic register if it is fixed.
4410         (thumb_expand_prologue): Likewise.
4411         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
4412         (pic_load_addr_based_insn): Likewise.
4413         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
4414         fixed.
4415
4416 2006-01-18  Ben Elliston  <bje@au.ibm.com>
4417
4418         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
4419         decimal float modes for all floating point registers.
4420
4421         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
4422         match_code "mem" with match_test "macho_lo_sum_memory_operand".
4423
4424 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
4425
4426         PR c/25682
4427         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
4428         even when the pointer is not NULL.
4429
4430 2006-01-16  Ian Lance Taylor  <ian@airs.com>
4431
4432         * common.opt (ftoplevel-reorder): New option.
4433         * cgraph.c (cgraph_asm_nodes): New global variable.
4434         (cgraph_asm_last_node): New static variable.
4435         (cgraph_order): New global variable.
4436         (cgraph_create_node): Set new order field.
4437         (cgraph_varpool_node): Likewise.
4438         (decide_is_variable_needed): Return true if not
4439         flag_toplevel_reorder.
4440         (cgraph_add_asm_node): New function.
4441         * cgraph.h (struct cgraph_node): Add order field.
4442         (struct cgraph_varpool_node): Add order field.
4443         (struct cgraph_asm_node): Define.
4444         (cgraph_asm_nodes, cgraph_order): Declare.
4445         (cgraph_add_asm_node): Declare.
4446         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
4447         function.
4448         (cgraph_varpool_assemble_pending_decls): Call it.
4449         (cgraph_output_pending_asms): New static function.
4450         (cgraph_finalize_compilation_unit): Call it.
4451         (struct cgraph_order_sort): Define.
4452         (cgraph_output_in_order): New static function.
4453         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
4454         !flag_toplevel_reorder case.
4455         * c-parser.c: Include "cgraph.h".
4456         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
4457         assemble_asm.
4458         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
4459         than -fno-unit-at-a-time.
4460         * doc/invoke.texi (Option Summary): Mention
4461         -fno-toplevel-reorder.
4462         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
4463         -funit-at-a-time documentation.
4464
4465 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
4466             Kazu Hirata  <kazu@codesourcery.com>
4467
4468         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
4469
4470 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
4471
4472         * Makefile.in (FUNCTION_H): New.  Use it instead of
4473         function.h throughout the file.
4474         * function.h: Include tree.h.
4475
4476 2006-01-17  Ben Elliston  <bje@au.ibm.com>
4477
4478         * recog.c: Separate some functions with whitespace.
4479
4480 2006-01-16  Richard Henderson  <rth@redhat.com>
4481
4482         Merge from gomp branch:
4483         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
4484         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
4485         and rename from struct inline_data.  Rename callee* to dst*;
4486         caller* to src*; add copy_decl hook, transform_call_graph_edges,
4487         transform_new_cfg, transform_return_to_modify, and
4488         transform_lang_insert_block flags; remove cloning_p, versioning_p,
4489         update_clones_p.
4490         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
4491         (copy_decl_for_dup): Remove.
4492         * tree-inline.c (struct inline_data): Move to header.
4493         (insert_decl_map): Export.
4494         (remap_decl): Update for member name changes.  Use copy_decl hook.
4495         Allow for replacement to be a non-decl.  Remove dead code.
4496         (remap_type_1): Check for existing mapping.
4497         (remap_type): Export.
4498         (remap_decls): Update for member name changes.
4499         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
4500         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
4501         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
4502         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
4503         (tree_function_versioning, build_duplicate_type): Likewise.
4504         (copy_body_r): Likewise.  Export.
4505         (copy_decl_for_dup): Split into ...
4506         (copy_decl_for_dup_finish, copy_decl_to_var,
4507         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
4508         (replace_ref_tree, inlining_p): Remove.
4509
4510 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4511
4512         * ifcvt.c (if_convert): Make it static.
4513         * rtl.h: Remove the prototype for if_convert.
4514
4515         * local-alloc.c (local_alloc): Make it static.
4516         * rtl.h: Remove the prototype for local_alloc.
4517
4518         * loop.c (loop_optimize): Make it static.
4519         * cfgloop.h: Remove the prototype for loop_optimize.
4520         * rtl.h: Likewise.
4521
4522 2006-01-16  DJ Delorie  <dj@redhat.com>
4523
4524         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
4525         mems.
4526
4527 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4528
4529         * pa.md: Disparage copies between general and floating-point registers
4530         in 32-bit move patterns.
4531
4532 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
4533
4534         PR testsuite/25741
4535         * Makefile.in (check-%): Depend on site.exp instead of
4536         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
4537         directories.
4538
4539 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4540
4541         * global.c (global_alloc): Make it static.
4542         * rtl.h: Remove the prototype for global_alloc.
4543
4544 2006-01-16  Richard Guenther  <rguenther@suse.de>
4545
4546         * tree-ssa-alias.c (struct used_part): Add write_only field.
4547         (get_or_create_used_part_for): Initialize it to true.
4548         (create_overlap_variables_for): Don't create structure variables
4549         for structures that only are written to.
4550         (find_used_portions): Handle MODIFY_EXPR to track whether a
4551         structure is only written to.
4552
4553 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4554
4555         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
4556         static.
4557         * basic-block.h: Remove the prototype for
4558         partition_hot_cold_basic_blocks.
4559
4560 2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>
4561
4562         * cppspec.c (lang_specific_spec_functions): Remove.
4563         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
4564         * gcc.h (lang_specific_spec_functions): Remove.
4565         * gccspec.c (lang_specific_spec_functions): Remove.
4566
4567 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
4568
4569         * combine.c (record_value_for_reg): Invalidate registers
4570         if INSN is null.
4571         (record_dead_and_set_regs_1): Likewise, by passing them to
4572         record_value_for_reg.
4573         (record_dead_and_set_regs): Invalidate stores made by a
4574         call.  We do not combine across a call, but we still
4575         relied on equivalences.
4576
4577 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4578
4579         * tree-vrp.c (extract_range_from_binary_expr): Cope with
4580         vrp_int_const_binop returning non-constant nodes.
4581
4582 2006-01-16  Paul Brook  <paul@codesourcery.com>
4583
4584         * config/m68k/m68k.c (output_move_const_into_data_reg):
4585         Output correct mnemonic for mvz and mvs.
4586
4587 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
4588
4589         * rtl-factoring.c: Add sequence abstraction algorithm.
4590         * cfgcleanup.c (outgoing_edges_match): Extra checks.
4591         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
4592         ABNORMAL edges.
4593         (block_has_preserve_label): New function.
4594         * common.opt: Register new pass.
4595         * Makefile.in: Ditto.
4596         * passes.c: Ditto.
4597         * timevar.def: Ditto.
4598         * tree-pass.h: Ditto.
4599         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
4600         * rtl.h (make_jump_insn_raw): Add forward decl.
4601         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
4602
4603 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4604             Roger Sayle  <roger@eyesopen.com>
4605
4606         * fold-const.c (fold_minmax): New static function.
4607         (fold_binary) <MIN_EXPR>: Call it.
4608         <MAX_EXPR>: Likewise.
4609         * stor-layout.c (place_field): Use DECL_SIZE consistently
4610         in the computation of the new record size.
4611
4612 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
4613
4614         * cse.c (cse_condition_code_reg): Make it static.
4615         * rtl.h: Remove the prototype for cse_condition_code_reg.
4616
4617         * combine.c (combine_instructions): Make it static.
4618         * rtl.h: Remove the prototype for combine_instructions.
4619
4620 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4621
4622         PR target/25168
4623         * tree.c (get_file_function_name_long): Concatenate the first global
4624         object name with a string derived from the input filename of the object
4625         for type "F".
4626
4627 2006-01-16  Ben Elliston  <bje@au.ibm.com>
4628
4629         * config/i386/winnt-stubs.c: Update FSF address.
4630         * config/xtensa/ieee754-df.S: Ditto.
4631         * config/xtensa/ieee754-sf.S: Ditto.
4632
4633 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4634
4635         * ifcvt.c (noce_init_if_info): New static function, broken out of
4636         noce_process_if_block.
4637         (noce_process_if_block): Call noce_init_if_info.
4638         (check_cond_move_block): New static function.
4639         (cond_move_process_if_block): New static function.
4640         (process_if_block): Call cond_move_process_if_block.
4641
4642 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
4643
4644         * cselib.c (hash_table): Rename to cselib_hash_table.
4645         (cselib_clear_table, discard_useless_values,
4646         remove_useless_values, cselib_lookup_mem, cselib_lookup,
4647         cselib_init, cselib_finish): Adjust uses of hash_table.
4648
4649 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
4650
4651         PR tree-optimization/25485
4652         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
4653         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
4654         is known to be false and true, respectively.
4655
4656 2006-01-14  Richard Guenther  <rguenther@suse.de>
4657
4658         PR tree-optimization/22548
4659         PR tree-optimization/22555
4660         PR tree-optimization/22501
4661         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
4662         * params.def (salias-max-array-elements): New parameter.
4663         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
4664         * doc/invoke.texi (salias-max-array-elements): Document.
4665         * tree-flow-inline.h (var_can_have_subvars): We also handle
4666         arrays now.
4667         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
4668         COMPONENT_REF.
4669         * tree-ssa-structalias.c (params.h): Include.
4670         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
4671         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
4672         (get_constraint_for): For ADDR_EXPR operating on something
4673         containing an ARRAY_REF, add all subvars to the solution.
4674         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
4675         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
4676         for creating MUST_DEFs.
4677         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
4678
4679 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
4680
4681         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
4682         functions.
4683         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
4684         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
4685         number_of_iterations_le): New functions.
4686         (number_of_iterations_special): Removed.
4687         (number_of_iterations_exit): Do not use number_of_iterations_special.
4688         * tree.c (unsigned_type_for): Always return integer type.
4689
4690 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
4691         Richard Guenther  <rguenther@suse.de>
4692
4693         PR rtl-optimization/24257
4694         * gcse.c (find_moveable_store): Only consider a store movable
4695         when the SET_SRC of the insn can be assigned to a register.
4696
4697 2006-01-14  Ian Lance Taylor  <ian@airs.com>
4698
4699         * tree.c (tree_not_class_check_failed): New function.
4700         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
4701         (tree_not_class_check_failed): Declare.
4702
4703 2006-01-13  Ian Lance Taylor  <ian@airs.com>
4704
4705         * reload1.c (do_output_reload): Add assertion rejecting a
4706         CALL_INSN.
4707
4708 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
4709
4710         * combine.c (struct reg_stat): Add new fields truncation_label and
4711         truncated_to_mode.
4712         (record_value_for_reg): Reset truncated_to_mode.
4713         (record_truncated_value): New function.
4714         (check_promoted_subreg): Call it.  Rename to check_conversions.
4715         (combine_instructions): Rename check_promoted_subreg to
4716         check_conversions.
4717         (reg_truncated_to_mode): New function.
4718         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
4719         (gen_lowpart_or_truncate): New function.
4720         (force_to_mode): Use it instead of gen_lowpart.
4721
4722 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
4723
4724         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
4725         VAR is a tag, not its type tag.
4726
4727 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
4728
4729         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
4730         alternatives to match style of other entries.
4731         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
4732
4733 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
4734
4735         PR tree-optimization/25771
4736         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
4737         SSA_NAMES.
4738
4739 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
4740
4741         PR tree-opt/24365
4742         * tree-inline.c (declare_return_variable): If the return variable
4743         was marked as a non gimple complex, set the return slot variable
4744         to be a non gimple comple variable.
4745
4746 2006-01-13  Richard Guenther  <rguenther@suse.de>
4747
4748         * builtins.c (expand_builtin_sincos): New function.
4749         (expand_builtin_mathfn_3): Remove dead code, sin and cos
4750         do not set errno.
4751         (expand_builtin): Expand sincos using expand_builtin_sincos.
4752
4753 2006-01-12  DJ Delorie  <dj@redhat.com>
4754
4755         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
4756         shift counts, separate SI shifts for m32c vs m16c, pass shift type
4757         so that constant shifts can be split.
4758         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
4759         (m32c_valid_pointer_mode): Make static.
4760         (shift_gen_func_for): New.
4761         (m32c_prepare_shift): Use it.  Split large const shifts into
4762         multiple shifts.
4763         * config/m32c/predicates.md (shiftcount_operand): Allow more
4764         general operands.
4765         (longshiftcount_operand): New.
4766         * doc/md.texi (Machine Constraints): Document In6.
4767
4768 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4769
4770         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
4771         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
4772         documentation.
4773
4774 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
4775
4776         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
4777         to try to avoid clobbering pieces of structures when we know
4778         something about the whole structure.
4779         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
4780
4781 2006-01-13  Ben Elliston  <bje@au.ibm.com>
4782
4783         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
4784         return in memory, as this is no limitation is no longer present.
4785
4786 2006-01-12  DJ Delorie  <dj@redhat.com>
4787
4788         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
4789         mova with fb, and for fb+0 -> An.
4790
4791         * config/m32c/mov.md (peephole2): Fix enabling logic.
4792
4793         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
4794         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
4795         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
4796         FINI_ARRAY_SECTION_ASM_OP): Define.
4797
4798         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
4799         variable.
4800         (m32c_legitimize_reload_address): New logic to reload FB to An.
4801         (m32c_output_reg_push): Add newline.
4802         (m32c_output_reg_pop): Likewise.
4803
4804 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
4805
4806         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
4807
4808 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
4809
4810         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
4811
4812 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4813
4814         * config/sh/predicates.md (sh_rep_vec): Add parallel to
4815         match_code.
4816
4817 2006-01-11  Ben Elliston  <bje@au.ibm.com>
4818
4819         * rtlanal.c (find_reg_note): Assert insn is not null.
4820
4821 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4822
4823         * df-scan.c (df_hard_reg_init): Move declaration of i outside
4824         ifdef.
4825
4826 2006-01-11  Jeff Law  <law@redhat.com>
4827
4828         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
4829         hold edge pairs.
4830         (mark_threaded_blocks, register_jump_thread): New functions.
4831         (thread_through_all_blocks): Remove unwanted argument.  No
4832         longer rely on e->aux to communicate thread target info.
4833         Call mark_threaded_blocks.  Release the threaded_blocks
4834         bitmap and threaded_edges vector when complete.
4835         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
4836         (threaded_blocks): Remove.
4837         (tree_ssa_dominator_optimize): Remove initialization and
4838         finalization of threaded_blocks.  Simplify call to
4839         thread_through_all_blocks.
4840         (thread_across_edge): Call register_jump_thread rather than
4841         storing thread information into e->aux.
4842         (free_all_edge_infos): Simplify now that e->aux is no longer
4843         used to communicate with thread_through_all_blocks.
4844         * tree-flow.h (thread_through_all_blocks): Update prototype.
4845         (register_jump_thread): Prototype.
4846
4847 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4848
4849         * df-core.c (df_compact_blocks, df_bb_replace): Use
4850         SET_BASIC_BLOCK instead of BASIC_BLOCK.
4851
4852 2006-01-11  Richard Guenther  <rguenther@suse.de>
4853
4854         PR tree-optimization/25734
4855         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
4856         stop propagation after successful propagation to the LHS.
4857
4858 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
4859
4860         * basic-block.h (control_flow_graph): Change the type of
4861         x_basic_block_info to VEC(basic_block,gc) *.
4862         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
4863         basic_block_info.
4864         (SET_BASIC_BLOCK): New.
4865         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
4866         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
4867         * cfgbuild.c (find_basic_blocks): Likewise.
4868         * cfglayout.c (fixup_reorder_chain): Likewise.
4869         * cfgrtl.c (create_basic_block_structure,
4870         rtl_create_basic_block): Likewise.
4871         * ifcvt.c (find_if_case_1): Likewise.
4872         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
4873         Likewise.
4874
4875 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
4876
4877         * Makefile.in: Removed rotted odf.c entry.
4878
4879 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
4880
4881         PR target/25706
4882         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
4883         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
4884         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
4885         output pattern modifier, not %e.
4886         * config/cris/cris.c (cris_op_str): Update comment about pattern
4887         modifier.
4888         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
4889         before falling through into...
4890         <case 'E'>: Redefined from old 'e' case.
4891
4892 2006-01-11  Jan Hubicka  <jh@suse.cz>
4893
4894         PR target/25042
4895         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
4896
4897 2006-01-11  Jan Hubicka  <jh@suse.cz>
4898
4899         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
4900         * i386.c (x86_decompose_lea): Kill.
4901         (ix86_rtx_costs): Kill.
4902
4903 2006-01-11  Jan Hubicka  <jh@suse.cz>
4904
4905         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
4906         * cgraph.h (cgraph_node): Add inline_decl.
4907         (cgraph_insert_node_to_hashtable): Declare.
4908         (save_inline_function_body): Declare.
4909         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
4910         clones.
4911         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
4912         (cgraph_function_versioning): Update call of tree_function_versioning.
4913         (save_inline_function_body): New function.
4914         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
4915         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
4916         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
4917         (cgraph_default_inline_p): Likewise.
4918         (cgraph_decide_inlining_incrementally): Likewise.
4919         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
4920         (copy_bb): Kill saving; do updating of clones.
4921         (copy_cfg_body): Kill saving.
4922         (initialize_inlined-parameters): Likewise.
4923         (expand_call_inline): Likewise.
4924         (save_body): Kill.
4925         (tree_function_versioning): New parameter "update_clones".
4926         (inlining_p): Kill saving.
4927         * tree-inline.h (tree_function_versioning): Update prototype.
4928         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
4929         saving.
4930
4931 2006-01-11  Ian Lance Taylor <ian@airs.com>
4932
4933         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
4934         Allow undoing set of machine mode.
4935         (do_SUBST): Use enums instead of is_int.
4936         (do_SUBST_MODE): New function.
4937         (SUBST_MODE): New macro.
4938         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
4939         reg and trying to replace reg_regno_rtx with a new register.
4940         (undo_all): Use new enums, handle undoing a PUT_MODE change.
4941         (simplify_set): Use SUBST_MODE.
4942         (distribute_notes): Remove code that tried to update reg notes
4943         for regno_reg_rtx changes.
4944
4945 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
4946
4947         PR tree-optimization/23109
4948         PR tree-optimization/23948
4949         PR tree-optimization/24123
4950
4951         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
4952         * tree-cfg.c (single_noncomplex_succ): New.
4953         * tree-flow.h (single_noncomplex_succ): Declare it.
4954         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4955         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4956         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
4957         insert_bb, register_division_in, insert_reciprocals,
4958         replace_reciprocal, free_bb): New.
4959         (execute_cse_reciprocals_1): Rewritten.
4960         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
4961         Do not commit any edge insertion.  Always compute dominators and
4962         create the allocation pool.
4963         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
4964         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
4965         * targhooks.c (default_min_divistions_for_recip_mul): New.
4966         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
4967         * passes.c (init_optimization_passes): Run recip after tree loop
4968         optimizations.
4969         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
4970
4971 2006-01-11  Danny Berlin <dberlin@dberlin.org>
4972             Kenneth Zadeck <zadeck@naturalbridge.com>
4973
4974         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
4975         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
4976         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
4977         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
4978         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
4979         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
4980         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
4981         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
4982         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
4983         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
4984         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
4985         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
4986         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
4987         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
4988         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
4989         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
4990         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
4991         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
4992         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
4993         DF_SCAN_POST_ALLOC): New macros.
4994         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
4995         df_free_bb_function, df_local_compute_function, df_init_function,
4996         df_dataflow_function, df_confluence_function_0,
4997         df_confluence_function_n, df_transfer_function,
4998         df_finalizer_function, df_free_function, df_dump_problem_function,
4999         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
5000         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
5001         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
5002         df_urec_bb_info, ) New types.
5003         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
5004         variables.
5005         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
5006         df_analyze_simple_change_some_blocks,
5007         df_analyze_simple_change_one_block, df_compact_blocks,
5008         df_bb_replace, df_bb_regno_last_use_find,
5009         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
5010         df_insn_regno_def_p, df_find_def, df_find_use,
5011         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
5012         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
5013         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
5014         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
5015         debug_df_chain, df_get_dependent_problem, df_chain_create,
5016         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
5017         df_grow_bb_info, df_chain_dump, df_print_bb_index,
5018         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
5019         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
5020         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
5021         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
5022         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
5023         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
5024         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
5025         df_ref_remove, df_insn_refs_delete, df_refs_delete,
5026         df_reorganize_refs, df_set_state, df_hard_reg_init,
5027         df_read_modify_subreg_p) New public functions.
5028         * df-core.c: The core dataflow solver and glue routines for rtl
5029         dataflow.
5030         (df_init, df_add_problem, df_set_blocks, df_finish,
5031         df_hybrid_search_forward, df_hybrid_search_backward,
5032         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
5033         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
5034         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
5035         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
5036         df_reg_defined, df_find_use, df_reg_used, df_dump,
5037         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
5038         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
5039         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
5040         debug_df_useno, reset_df_after_reload): New functions.
5041         * df-scan.c: The scanning fuctions, once in df.c, completely
5042         rewritten so that they now fully model the functionality of
5043         register usage at the backend.
5044         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
5045         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
5046         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
5047         df_grow_insn_info, df_rescan_blocks, df_ref_create,
5048         df_get_artificial_defs, df_get_artificial_uses,
5049         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
5050         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
5051         df_refs_delete, df_reorganize_refs, df_set_state,
5052         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
5053         df_def_record_1, df_defs_record, df_uses_record,
5054         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
5055         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
5056         df_record_exit_block_uses, df_hard_reg_init): New functions.
5057
5058         * df-problems.c: Seven concrete dataflow problems that use the
5059         scanning in df-scan.c and are solved by the engine in df-core.c.
5060         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
5061         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
5062         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
5063         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
5064         df_ru_free_bb_info, df_ru_alloc,
5065         df_ru_bb_local_compute_process_def,
5066         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
5067         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
5068         df_ru_transfer_function, df_ru_free, df_ru_dump,
5069         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
5070         df_rd_free_bb_info, df_rd_alloc,
5071         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
5072         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
5073         df_rd_transfer_function, df_rd_free, df_rd_dump,
5074         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
5075         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
5076         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
5077         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
5078         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
5079         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
5080         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
5081         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
5082         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
5083         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
5084         df_urec_mark_reg_change, df_urec_check_earlyclobber,
5085         df_urec_mark_reg_use_for_earlyclobber,
5086         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
5087         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
5088         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
5089         df_urec_dump, df_urec_add_problem, df_chain_alloc,
5090         df_chain_create_bb_process_use, df_chain_create_bb,
5091         df_chain_finalize, df_chain_free, df_chains_dump,
5092         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
5093         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
5094         df_reg_lifetime): New functions.
5095         * df.c: Deleted file.
5096         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
5097         consistent with new df api.
5098         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
5099         rest_of_handle_sms): Ditto.
5100         * web.c (unionfind_union, union_defs, entry_register, web_main):
5101         Ditto.
5102         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
5103         invariant_expr_equal_p, find_defs, check_dependencies,
5104         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
5105         free_inv_motion_data, move_loop_invariants): Ditto.
5106         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
5107         Update dependencies.
5108         (odf.c): Added defective entry that was deleted later in day.
5109         * sched-deps.c (sched_analyze_1): Ditto.
5110
5111 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
5112
5113         * tree-ssa-operands.c (get_expr_operands): Record addressable
5114         variables directly.  Do not call add_stmt_operands for CONST_DECLs
5115         and ARRAY_DECLs.
5116         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
5117         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
5118
5119 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5120
5121         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
5122         function returns true in the positive case.
5123
5124 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5125
5126         PR target/20754
5127         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
5128         for SI, DI, SF and DF modes.  Add alternatives to copy between
5129         general and floating point registers to the 32-bit patterns.
5130         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
5131         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
5132         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
5133         generating 64-bit code.
5134         * config/pa/pa.c (output_move_double): Handle copies between general
5135         and floating registers.
5136
5137 2006-01-10  Stuart Hastings  <stuart@apple.com>
5138
5139         * config/i386/i386.md (set_got): Update.
5140         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
5141         (builtin_setjmp_receiver): Mach-O support.
5142         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
5143         (GOT_SYMBOL_NAME): Define.
5144         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
5145         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
5146         * config/i386/i386.c (override_options): Revise for Darwin.
5147         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
5148         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
5149         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
5150         * config/i386/i386-protos.h (output_set_got): Likewise.
5151         * config/darwin.c (machopic_legitimize_pic_address): Update
5152         regs_ever_live[].
5153
5154 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
5155
5156         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
5157         when MODE isn't BLKmode.
5158
5159 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
5160
5161         PR rtl-optimization/25367
5162         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
5163
5164 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
5165
5166         PR target/25718
5167         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
5168         for a negative bound.
5169
5170 2006-01-10  Richard Guenther  <rguenther@suse.de>
5171
5172         * tree-ssa-structalias.c (get_constraint_for_component_ref):
5173         Never override with anything constraint.
5174
5175 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5176
5177         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
5178         256 bits when optimize_size.
5179
5180 2006-01-10  Jan Beulich  <jbeulich@novell.com>
5181
5182         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
5183         MASK_ALIGN_DOUBLE.
5184         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
5185         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
5186         arguments.
5187
5188 2006-01-10  Ben Elliston  <bje@au.ibm.com>
5189
5190         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
5191         float modes.
5192         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
5193         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
5194         (USE_FP_FOR_ARG): Reject decimal float modes.
5195         (function_arg_advance): Likewise.
5196         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
5197         (rs6000_handle_altivec_attribute): Do not permit decimal floating
5198         point types in AltiVec vectors.
5199         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
5200         (rs6000_libcall_value): Likewise.
5201
5202 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
5203
5204         * config/xtensa/ieee754-df.S: New file.
5205         * config/xtensa/ieee754-sf.S: New file.
5206         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
5207         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
5208         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
5209
5210 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
5211
5212         * config/sh/predicates.md (binary_float_operator,
5213         binary_logical_operator, commutative_float_operator,
5214         equality_comparison_operator, greater_comparison_operator,
5215         less_comparison_operator, logical_operator,
5216         noncommutative_float_operator, shift_operator,
5217         symbol_ref_operand, unary_float_operator): Remove redundant
5218         conditionals.
5219
5220 2006-01-09  Jeff Law  <law@redhat.com>
5221
5222         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
5223         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
5224         now unused arguments.  Callers updated.
5225         (eliminate_redundant_computations): Remove now unused arguments,
5226         callers updated.
5227         (local_fold): Remove, no longer used.
5228         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
5229         and moved to...
5230         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
5231         (simplify_cond): New function.
5232         (forward_propagate_into_cond): Call simplify_cond.
5233
5234 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
5235
5236         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
5237         (*vec_extractv2di_1_sse): New.
5238
5239 2006-01-09  Ben Elliston  <bje@au.ibm.com>
5240
5241         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
5242
5243 2006-01-08  Richard Guenther  <rguenther@suse.de>
5244
5245         * tree-ssa-structalias.c (get_constraint_for): Remove
5246         anyoffset argument.
5247         (get_constraint_for_component_ref): Likewise.
5248         (do_deref): Likewise.
5249         (get_constraint_for): Likewise.
5250         (do_structure_copy): Likewise.
5251         (handle_ptr_arith): Likewise.
5252         (find_func_aliases): Likewise.  Remove unused need_anyoffset
5253         variable.
5254
5255 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
5256             Kaz Kojima  <kkojima@gcc.gnu.org>
5257
5258         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
5259         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
5260         (EXTRA_CONSTRAINT_C16): Remove.
5261         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
5262         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
5263         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
5264         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
5265         constants of SHmedia.  Handle nested constant expressions of
5266         SHmedia correctly.
5267         (andcosts): Fix the costs for SHmedia constants.
5268         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
5269         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
5270         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
5271         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
5272         (movv4hi_i, movv2si_i): Likewise.
5273         (movsi_const): Adjust the second operand of ior so to match with
5274         the Csu constraint.
5275         (movdi_const, movdi_const_32bit): Likewise.
5276         (movdi_const_16bit+1): Don't sign-extend LOW.
5277         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
5278         step.
5279         (*double_shori): Fix the split condition.  Use GEN_INT instead
5280         of get_int_mode calls.  Mask lower 16-bit of the argument of
5281         the last GEN_INT.
5282         (sym2GOTPLT): Remove.
5283         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
5284         gen_rtx_UNSPEC.
5285         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
5286         instead of EXTRA_CONSTRAINT_C16.
5287
5288 2006-01-07  Ian Lance Taylor  <ian@airs.com>
5289             David Edelsohn  <edelsohn@gnu.org>
5290
5291         PR rtl-optimization/25662
5292         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
5293         for constant operands instead of simplify_gen_binary.
5294         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
5295         after trying simplify_binary_operation
5296
5297 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
5298
5299         * tree.c (iterative_hash_expr): Hash decls based on UID.
5300
5301 2006-01-06  Eric Christopher  <echristo@apple.com>
5302
5303         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
5304         (TARGET_UNWIND_EMIT): Fix spelling.
5305         * target.h (gcc_target): Add except_table_label.
5306         * except.c (output_function_exception_table): Use.
5307         * varasm.c (default_emit_except_table_label): New.
5308         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
5309         define.
5310         (asm_out): Add here.
5311         * output.h (default_emit_except_table_label): Prototype.
5312         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
5313         * config/darwin.c (darwin_emit_except_table_label): Define.
5314         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
5315
5316 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
5317
5318         PR tree-optimization/18527
5319         * tree-ssa-loop-niter.c (number_of_iterations_cond,
5320         number_of_iterations_special, number_of_iterations_exit):
5321         Move base and step of an iv to a single structure.  Add
5322         no_overflow flag, and use it in # of iterations analysis.
5323         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
5324         folded_casts argument.
5325         (simple_iv): Pass base and step in a structure.  Set no_overflow
5326         flag.
5327         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
5328         Evaluate expensiveness of computing # of iterations instead of
5329         the final expression.
5330         * tree-scalar-evolution.h (affine_iv): New structure.
5331         (simple_iv): Declaration changed.
5332         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
5333         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
5334         find_givs_in_stmt): Changed due to simple_iv change.
5335
5336 2006-01-06  Jeff Law  <law@redhat.com>
5337
5338         PR ada/24994
5339         * tree-cfg.c (bsi_replace): Rename final argument from
5340         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
5341         change (stmt -> orig_stmt).
5342         * tree-eh.c (verify_eh_throw_stmt_node): New function.
5343         (bsi_remove): Add new argument.  Remove EH information
5344         if requested.
5345         (verify_eh_throw_table_statements): New function.
5346         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
5347         updated.
5348         * tree-optimize.c (execute_free_cfg_annotations): Verify
5349         the EH throw statement table after removing annotations.
5350         * except.h (verify_eh_throw_table_statements): Prototype.
5351         * tree-flow.h (bsi_remove): Update prototype.
5352         * tree-vrp.c (remove_range_assertions): Add new argument to
5353         bsi_remove call.
5354         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
5355         * tree-complex.c (expand_complex_div_wide): Likewise.
5356         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
5357         * tree-tailcall.c (eliminate_tailcall): Likewise.
5358         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
5359         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
5360         * tree-nrv.c (tree_nrv): Likewise.
5361         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
5362         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
5363         (combine_blocks): Likewise.
5364         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
5365         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
5366         (cleanup_control_flow): Likewise.
5367         (remove_forwarder_block): Likewise.
5368         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
5369         * tree-sra.c (sra_replace): Likewise.
5370         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
5371         (forward_propagate_single_use_vars): Likewise.
5372         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
5373         * tree-inline.c (expand_call_inline): Likewise.
5374         * tree-vect-transform.c (vect_transform_loop): Likewise.
5375         * tree-outof-ssa.c (rewrite_trees): Likewise.
5376         * tree-cfg.c (make_goto_expr_edges): Likewise.
5377         (cleanup_dead_labels): Likewise.
5378         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
5379         (bsi_move_before, bsi_move_after): Likewise.
5380         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
5381         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
5382
5383 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
5384
5385         PR tree-opt/25528
5386         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
5387         and IMAGPART_EXPR.
5388         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
5389         on non gimple variables.  Also add checks at the top for decls and
5390         mtags.
5391         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
5392         complex types.
5393         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
5394         and IMAGPART_EXPR for creating MUST_DEFs.
5395         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
5396         and NAME_MEMORY_TAG separately from the DECLs.
5397
5398 2006-01-06  Richard Guenther  <rguenther@suse.de>
5399
5400         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
5401         annotation, if necessary.
5402         * tree-ssa-pre.c (create_expression_by_pieces): Remove
5403         redundant calls to update_stmt.
5404         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
5405         Likewise.
5406
5407 2006-01-05  Richard Henderson  <rth@redhat.com>
5408
5409         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
5410
5411 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5412
5413         * c-typeck.c: Update copyright date.
5414
5415 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
5416
5417         * c-typeck.c (build_c_cast): Always warn when casting
5418         from a pointer to an integer of different size, even if
5419         the node was constant.
5420
5421 2006-01-05  Richard Guenther  <rguenther@suse.de>
5422
5423         PR tree-optimization/22555
5424         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
5425         if one structure field is an array.
5426         * tree-ssa-operands.c (get_expr_operands): Continue scanning
5427         operands even if we found a subvar, but ignore VOPs in this
5428         case.
5429         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
5430         for renaming.
5431         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
5432
5433 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
5434
5435         PR middle-end/24998
5436         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
5437
5438 2006-01-05  Richard Guenther  <rguenther@suse.de>
5439             Diego Novillo  <dnovillo@redhat.com>
5440
5441         * tree-pass.h (TODO_remove_unused_locals): Define.
5442         * gimple-low.c (expand_var_p, remove_useless_vars,
5443         pass_remove_useless_vars): Remove.  Update all users.
5444         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
5445         (remove_unused_locals): New function.
5446         * tree-flow.h (remove_unused_locals): Declare.
5447         * passes.c (execute_todo): Call remove_unused_locals if
5448         TODO_remove_unused_locals is set.
5449         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
5450         * tree-ssa-dce.c (pass_dce): Likewise.
5451         * tree-outof-ssa.c (pass_del_ssa): Likewise.
5452
5453 2006-01-05  Richard Guenther  <rguenther@suse.de>
5454
5455         * tree-flow.h (struct fieldoff): Decompose field to
5456         type, size and decl.
5457         * tree-ssa-alias.c (create_sft): Take type as parameter.
5458         (create_overlap_variables_for): Store type, size and decl
5459         in the fieldoff structure.
5460         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
5461         of struct fieldoff.
5462         (push_fields_onto_fieldstack): Likewise.
5463         (create_variable_info_for): Likewise.  Use offset for the
5464         SFT name if the decl is not available.
5465
5466 2006-01-04  Paul Brook  <paul@codesourcery.com>
5467
5468         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
5469
5470 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
5471
5472         * lambda-code.c (can_put_in_inner_loop): Relax
5473         restrictions.
5474         (can_put_after_inner_loop): New function.
5475         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
5476         (perfect_nestify): Change to make copies and modify uses.
5477
5478 2006-01-04  Richard Henderson  <rth@redhat.com>
5479
5480         Merge from gomp branch:
5481         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
5482         via integer constant.
5483         (pragma_lex): Remove.
5484         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
5485         rather than parsing it.
5486         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
5487         handle_pragma_extern_prefix): Add %< %> quotes.
5488         (registered_pragmas): New.
5489         (c_register_pragma_1): New.
5490         (c_register_pragma): Use it.
5491         (c_register_pragma_with_expansion): Likewise.
5492         (c_invoke_pragma_handler): New.
5493         (init_pragma): Use cpp_register_deferred_pragma directly for
5494         pch_preprocess.
5495         * c-pragma.h (enum pragma_kind): New.
5496         (pragma_handler): New.
5497         (c_invoke_pragma_handler): Declare.
5498         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
5499         CPP_PRAGMA_EOL.
5500         * c-common.h (c_common_pch_pragma): Update decl.
5501         * Makefile.in (c-parser.o): Update dependencies.
5502         (GTFILES): Add c-pragma.h.
5503         * c-parser.c (struct c_token): Add pragma_kind.
5504         (struct c_parser): Add in_pragma.
5505         (c_lex_one_token): Always initialize keyword and pragma_kind.
5506         Extract data for CPP_PRAGMA.
5507         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
5508         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
5509         Don't allow CPP_PRAGMA_EOL if in_pragma.
5510         (c_parser_consume_pragma): New.
5511         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
5512         (c_parser_skip_to_end_of_parameter): Likewise.
5513         (c_parser_skip_to_end_of_block_or_statement): Likewise.
5514         (c_parser_skip_to_pragma_eol): New.
5515         (c_parser_external_declaration): Handle CPP_PRAGMA.
5516         (c_parser_compound_statement_nostart): Likewise.
5517         (c_parser_statement_after_labels): Likewise.
5518         (c_parser_pragma): New.
5519         (pragma_lex): Likewise.
5520         (c_parser_pragma_pch_preprocess): New.
5521         (c_parser_new): Merge into ...
5522         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
5523
5524 2006-01-04  Jeff Law  <law@redhat.com>
5525
5526         PR ada/24994
5527         * tree-cfg.c (bsi_replace): Remove the original statement
5528         from the EH throw statement table.
5529
5530 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
5531
5532         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
5533         make the prototype extern "C" and add throw ().
5534
5535         PR target/25554
5536         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
5537         and pos non-negative and pos + len <= 32.
5538         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
5539         drop pos + len < HOST_BITS_PER_WIDE_INT test.
5540         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
5541
5542         PR c/25559
5543         * c-common.c (handle_vector_size_attribute): Reject zero vector size
5544         as well as sizes not multiple of component size.
5545
5546         PR debug/25562
5547         * function.c (instantiate_expr): New function.
5548         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
5549         walk its DECL_VALUE_EXPR with instantiate_expr.
5550
5551         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
5552         DW_OP_deref{,_size} if address isn't going to be added.
5553
5554 2006-01-04  Ben Elliston  <bje@au.ibm.com>
5555
5556         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
5557         * config/fp-bit.c: Likewise.
5558
5559 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
5560
5561         * dominance.c: Add comment about why we use DFS numbering
5562         of dominance tree.
5563
5564 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5565             Richard Henderson  <rth@redhat.com>
5566
5567         Merge from gomp-branch:
5568         * varasm.c (assemble_variable): Handle thread-local COMMON data.
5569         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
5570
5571 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
5572
5573         PR rtl-optimization/25578
5574         * combine.c (combine_simplify_rtx, force_to_mode): Don't
5575         pass a parameter to simplify_shift_const if changing ASHIFTRT
5576         to LSHIFTRT.
5577
5578 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
5579
5580         * builtins.c (get_builtin_sync_mem): New function.
5581         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
5582         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
5583         Call get_builtin_sync_mem to generate mem rtx.
5584
5585 2006-01-03  Richard Guenther  <rguenther@suse.de>
5586
5587         PR c/25183
5588         * stmt.c (add_case_node): Make sure to clear overflow flags
5589         from ranges.
5590
5591 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
5592
5593         Merge from gomp-branch.
5594         * config/sparc/sync.md: New file.
5595         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
5596         UNSPECV_LDSTUB): New constants.
5597         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
5598         * config/sparc/predicates.md (memory_reg_operand): New predicate.
5599         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
5600         prototype.
5601
5602 2006-01-03  Roger Sayle  <roger@eyesopen.com>
5603
5604         * combine.c (reg_subword_p): New predicate to test whether the
5605         destination of a set refers to a subword/piece of a register.
5606         (try_combine): Generalize the code to merge the setting of a
5607         pseudo to a constant followed by a set of a subword of that
5608         register to a constant.
5609
5610 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
5611
5612         * basic-block.h (control_flow_graph): Change the type of
5613         x_label_to_block_map to VEC(basic_block,gc) *.
5614         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
5615         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
5616
5617         * tree-ssa-propagate.c (cfg_blocks): Change the type to
5618         VEC(basic_block,heap) *.
5619         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
5620         ssa_prop_fini): Adjust the uses of cfg_blocks.
5621
5622 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
5623
5624         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
5625         COMPONENT_REFs.
5626         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
5627         hashing trees instead of a pointer hash.
5628         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
5629         compare for MEM_EXPR.
5630
5631         PR rtl-optimization/25130
5632         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
5633         when comparing MEMs for GCSE
5634
5635 2006-01-03  Ben Elliston  <bje@au.ibm.com>
5636
5637         * targhooks.h (default_decimal_float_supported_p): Declare.
5638         * targhooks.c (default_decimal_float_supported_p): Define.
5639         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
5640         `default_decimal_float_supported_p'.
5641         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
5642
5643 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
5644
5645         * combine.c (apply_distributive_law <SUBREG>): Check
5646         TRULY_NOOP_TRUNCATION.
5647
5648 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
5649
5650         * dwarf2out.c (have_switched_text_section): Delete.
5651         (have_multiple_function_sections): New.
5652         (have_location_lists): Make 'bool'.
5653         (add_AT_loc_list): Use 'true' not '1'.
5654         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
5655         (output_loc_list): Use have_multiple_function_sections.
5656         (output_ranges): Likewise.
5657         (dwarf2out_begin_function): Set have_multiple_function_sections if
5658         necessary.
5659         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
5660         Check function_section rather than DECL_SECTION_NAME.
5661         (dwarf2out_finish): Use have_multiple_function_sections.
5662         Don't clear have_location_lists.
5663
5664 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
5665             Jan Hubicka  <jh@suse.cz>
5666
5667         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
5668         case of conditional jump jumping to the next instruction.
5669         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
5670         cases of conditional jump jumping to the next instruction.
5671
5672 2006-01-02  Jan Hubicka  <jh@suse.cz>
5673
5674         * i386.c (*_cost): Add COSTS_N_INSNS.
5675         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
5676
5677 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
5678
5679         PR target/25259
5680         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
5681
5682 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
5683
5684         * config/arm/arm.c (all_fpus): Fix comment typo.
5685         * config/darwin.c: Likewise.
5686         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
5687         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
5688         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
5689
5690 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
5691
5692         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
5693         (rs6000_split_compare_and_swapqhi): New.
5694         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
5695         (sync_compare_and_swapqhi_internal): New.
5696         * config/rs6000/rs6000-protos.h: Declare.