OSDN Git Service

9f49570ba8f59470e17bd8eada016428b529cadd
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
2
3         PR libgomp/26234
4         * doc/install.texi (Configuration): Document --disable-libgomp.
5
6 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
7
8         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
9
10 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
11
12         * config/i386/sse.md (vec_extractv2df_1_sse): New.
13         (vec_extractv2df_0_sse): New.
14
15 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
16
17         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
18         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
19         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
20         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
21         to the result of the expression.
22         (def_cfa_1): Adjust.
23         (frame_pointer_cfa_offset): Rename to...
24         (frame_pointer_fb_offset): ... this.  Adjust all uses.
25         (convert_cfa_to_loc_list): Rename to...
26         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
27         Pass it on to build_cfa_loc.
28         (compute_frame_pointer_to_cfa_displacement): Rename to...
29         (compute_frame_pointer_to_fb_displacement): ... this.  New
30         offset parameter.  Use it in computation.
31         (gen_subprogram_die): Compute cfa_fb_offset with the new
32         macro, and use it to compute the fb loc list and the
33         displacement.
34
35 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
36
37         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
38         replaced with register_operand.
39         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
40         non-DREG is expensive.
41         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
42         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
43         involving memory.
44
45 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
46
47         * doc/install.texi2html: Use set -e.
48
49 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
50
51         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
52         (ASM_OUTPUT_SHARED_LOCAL): Delete.
53         * doc/invoke.texi (-fshared-data): Delete.
54         * common.opt (fshared-data): Delete.
55         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
56         (assemble_static_space): Remove #if 0 code.
57         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
58         (ASM_OUTPUT_SHARED_LOCAL): Poison.
59         * config/cris/cris.h: Remove FIXME.
60
61 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
62
63         * doc/sourcebuild.texi (Front End Directory): No more double-colon
64         hooks.
65
66 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
67
68         PR middle-end/26379
69         * combine.c (simplify_shift_const_1): Disable nested shifts
70         optimization for vector shifts.
71
72 2006-02-20  Roger Sayle  <roger@eyesopen.com>
73
74         PR tree-optimization/26361
75         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
76         of unsigned integer types.
77
78 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
79
80         * tree-chrec.c (eq_evolutions_p): New.
81         * tree-chrec.h (eq_evolutions_p): Declared.
82         * tree-data-ref.c: Fix formatting.
83         (datadep_stats, dependence_stats): New.
84         (gcd): Moved...
85         (print_direction_vector): New.
86         (dump_data_dependence_relation): Use print_direction_vector.
87         (object_analysis, create_data_ref): Handle COMPONENT_REF.
88         (compute_subscript_distance): Static.
89         (initialize_data_dependence_relation): Static.  Get the number
90         of loops surrounding the references from the callers, and initialize
91         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
92         base_object_differ_p analyzers.
93         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine, 
94         compute_overlap_steps_for_affine_1_2,
95         analyze_subscript_affine_affine): Count the classified dependences.
96         Print a message when a test failed.
97         (can_use_analyze_subscript_affine_affine): New. 
98         (analyze_siv_subscript): Compute the data dependences on symbolic
99         scevs that verify can_use_analyze_subscript_affine_affine.
100         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
101         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
102         Handle symbolic scevs.
103         (analyze_overlapping_iterations): Let symbolic affine scevs to be
104         analyzed.
105         (subscript_dependence_tester): Moved...
106         (build_classic_dist_vector, build_classic_dir_vector): Don't use 
107         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
108         DDR_SIZE_VECT instead of getting it in parameter.
109         (subscript_dependence_tester): ... here.  Take as a parameter 
110         loop_nest_depth.  Call build_classic_dist_vector and
111         build_classic_dir_vector.
112         (compute_affine_dependence): Update subscript_dependence_tester 
113         parameters.  Update datadep_stats counters.  Call 
114         compute_subscript_distance.
115         (compute_self_dependence): Save the dist and dir vectors.  Call 
116         compute_subscript_distance.
117         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
118         (compute_all_dependences): Reorder parameters as they were before
119         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
120         compute_subscript_distance.  Update the use of 
121         compute_affine_dependence and initialize_data_dependence_relation.
122         (find_data_references_in_loop): Handle COMPONENT_REF.
123         (compute_data_dependences_for_loop): Initialize dependence_stats.
124         Don't call build_classic_dist_vector and build_classic_dir_vector.
125         Update the parameters of initialize_data_dependence_relation and 
126         compute_all_dependences.  Print the statistics from datadep_stats.
127         (analyze_all_data_dependences): Static.  Not used until the pass for
128         checking the data dependences is contributed.
129         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
130         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
131         (initialize_data_dependence_relation, compute_affine_dependence, 
132         analyze_all_data_dependences, compute_subscript_distance): Removed.
133         (print_direction_vector): New.
134         * lambda.h (gcd): ... here.
135         (lambda_vector_gcd): Moved here from gcd_vector.
136         * lambda-code.c (gcd, gcd_vector): Removed.
137         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
138         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
139
140 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
141
142         * ipa-type-escape.c: Tidy some comments and white space.
143         * tree-ssa-operands.c: Likewise.
144
145 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
146
147         PR tree-opt/25879
148         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
149         (dump_decl_name): Do not walk the decl tree chains.
150         * tree-pass.h (TDF_CHAIN): Remove.
151
152 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
153
154         * Makefile.in (C): Remove
155         (PROTO): Remove
156         (.PHONY): Remove C and PROTO
157
158 2006-02-20  Roger Sayle  <roger@eyesopen.com>
159
160         PR middle-end/26236
161         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
162         deprecated CHAR_TYPE tree code.
163
164 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
165
166         * configure.ac (target_list): Add install-info, dvi, html.
167         * configure: Regenerate.
168
169         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
170         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
171         treelang/Make-lang.in: Do not use double-colon rules.
172
173 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
174
175         * tree.h (struct tree_memory_tag): Add is_used_alone member.
176         (TMT_USED_ALONE): New macro.
177         * tree-pass.h (PROP_tmt_usage): New property.
178         (TODO_update_tmt_usage): New todo.
179         * tree-ssa-alias.c (updating_used_alone): New variable.
180         (recalculate_used_alone): New function.   
181         (compute_may_aliases): Set updating_used_alone, call
182         recalculate_used_alone. 
183         * tree-sra.c (pass_sra): Note that this pass destroys
184         PROP_tmt_usage, and add TODO_update_tmt_usage.
185         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
186         * tree-flow.h (updating_used_alone): Prototype.
187         (recalculate_used_alone): Ditto.
188         * passes.c (execute_todo): Add code to set updating_used_alone,
189         and call recalculate.
190         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
191         for clobber if used alone, and add assert to verify used_alone
192         status.
193         
194 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
195
196         * config/s390/s390.c (legitimize_pic_address): Assertions checking
197         for non tls symbols added.
198         (legitimize_address): Do nothing for PLUS expressions if one of the
199         addends is a tls symbol reference.
200
201 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
202
203         PR bootstrap/25476
204
205         * Makefile.in (LDFLAGS): Define from autoconf substitution.
206
207         * Makefile.in (BOOTSTRAPPING): New.
208         (quickstrap): New definition if BOOTSTRAPPING=yes.
209
210         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
211         * configure.ac: Substitute all_selected_languages with the languages
212         that were configured.  For all the other variables except
213         lang_specs_files, include all the languages in the tree.
214         * configure: Regenerate.
215         
216         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
217         if there is one.  Run the commands to run fixincludes in the same
218         subshell.
219
220         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
221         * doc/install.texi: Document exact conventions for searching target tools.
222         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
223         something more about building an Ada cross-compiler.  Don't list GNU Make
224         requirements which affect all platforms.
225
226 2006-02-19  Roger Sayle  <roger@eyesopen.com>
227
228         PR middle-end/19543
229         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
230         only equivalent if the have both the same mode and precision.
231
232 2006-02-20  Ben Elliston  <bje@au.ibm.com>
233
234         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
235
236 2006-02-19  Roger Sayle  <roger@eyesopen.com>
237             Steven Bosscher  <stevenb.gcc@gmail.com>
238
239         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
240         constant pool references to identify stack mode constants.
241         * rtlanal.c (constant_pool_constant_p): New predicate to check
242         whether operand is a floating point constant in the pool.
243         * rtl.h (constant_pool_constant_p): Prototype here.
244         * loop.c (scan_loop): Avoid hoisting constants from the constant
245         pool on STACK_REGS targets.
246         (load_mems): Likewise.
247         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
248         loads into x87 registers expensive in terms of register pressure.
249
250 2006-02-19  Roger Sayle  <roger@eyesopen.com>
251
252         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
253         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
254
255 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
256
257         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
258         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
259
260 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
261
262         * doc/invoke.texi: Document -fipa-pta.
263         * common.opt: Add ipa-pta option.
264         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
265         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
266         (do_ds_constraint): Ditto.
267         (get_constraint_for): Only add to referenced_vars if
268         referenced_vars exists.
269         (insert_into_field_list): Rewrite to do this unsorted.
270         (insert_into_field_list_sorted): Rename old insert_into_field_list
271         to this.
272         (create_function_info_for): Use insert_into_field_list_sorted.
273         (create_variable_info_for): Rewrite so it uses unsorted version,
274         since the field list is sorted.
275         (intra_create_variable_infos): Only add to referenced_vars if
276         referenced_vars exists.
277         (ipa_pta_execute): Init heapvars, and delete when done.
278         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
279
280 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
281
282         * doc/install.texi: Add missing `@samp'.
283
284 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
285
286         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
287         Use the arguments.
288
289 2006-02-18  Mark Wielaard  <mark@klomp.org>
290
291         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
292         who added new 4.1 features, bug fixes and integration support.
293
294 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
295
296         PR target/26350
297         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
298         MEM for ABI_V4 pic.
299
300 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
301
302         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
303         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
304         (copy_insn_1): Likewise.  Don't copy each field individually.
305         Reindent.
306         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
307         of RTX_SIZE.
308         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
309         * rtl.c (rtx_size): Rename variable to...
310         (rtx_code_size): ...this.
311         (rtx_size): New function.
312         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
313         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
314         Reindent.
315         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
316         * rtl.h (rtx_code_size): New variable.
317         (rtx_size): Change from a variable to a function.
318         (RTX_SIZE): Rename to...
319         (RTX_CODE_SIZE): ...this.
320
321         PR target/9703
322         PR tree-optimization/17106
323         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
324         (Anchored Addresses): New section.
325         * doc/invoke.texi (-fsection-anchors): Document.
326         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
327         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
328         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
329         * hooks.c (hook_bool_mode_rtx_false): New function.
330         * hooks.h (hook_bool_mode_rtx_false): Declare.
331         * gengtype.c (create_optional_field): New function.
332         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
333         SYMBOL_REF_IN_BLOCK_P is true.
334         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
335         (min_anchor_offset, max_anchor_offset): Likewise.
336         (use_anchors_for_symbol_p): New hook.
337         * toplev.c (compile_file): Call output_object_blocks.
338         (target_supports_section_anchors_p): New function.
339         (process_options): Check that -fsection-anchors is only used on
340         targets that support it and when -funit-at-a-time is in effect.
341         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
342         if the decl doesn't have one.
343         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
344         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
345         of force_const_mem through use_anchored_address.
346         (expand_expr_constant): New function.
347         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
348         calling expand_expr for INDIRECT_REF.
349         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
350         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
351         * expr.h (use_anchored_address): Declare.
352         * loop-unroll.c: Don't declare rtx vectors here.
353         * explow.c: Include output.h.
354         (validize_mem): Call use_anchored_address.
355         (use_anchored_address): New function.
356         * common.opt (-fsection-anchors): New switch.
357         * varasm.c (object_block_htab, anchor_labelno): New variables.
358         (hash_section, object_block_entry_eq, object_block_entry_hash)
359         (use_object_blocks_p, get_block_for_section, create_block_symbol)
360         (use_blocks_for_decl_p, change_symbol_section): New functions.
361         (get_variable_section): New function, split out from assemble_variable.
362         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
363         use_blocks_for_decl_p say so.  Use change_symbol_section if the
364         symbol has already been created.
365         (assemble_variable_contents): New function, split out from...
366         (assemble_variable): ...here.  Don't output any code for
367         block symbols; just pass them to place_block_symbol.
368         Use get_variable_section and assemble_variable_contents.
369         (get_constant_alignment, get_constant_section, get_constant_size): New
370         functions, split from output_constant_def_contents.
371         (build_constant_desc): Create a block symbol if use_object_blocks_p
372         says so.  Or into SYMBOL_REF_FLAGS.
373         (assemble_constant_contents): New function, split from...
374         (output_constant_def_contents): ...here.  Don't output any code
375         for block symbols; just pass them to place_section_symbol.
376         Use get_constant_section and get_constant_alignment.
377         (force_const_mem): Create a block symbol if use_object_blocks_p and
378         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
379         (output_constant_pool_1): Add an explicit alignment argument.
380         Don't switch sections here.
381         (output_constant_pool): Adjust call to output_constant_pool_1.
382         Switch sections here instead.  Don't output anything for block symbols;
383         just pass them to place_block_symbol.
384         (init_varasm_once): Initialize object_block_htab.
385         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
386         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
387         (place_block_symbol, get_section_anchor, output_object_block)
388         (output_object_block_htab, output_object_blocks): New functions.
389         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
390         (TARGET_ASM_OUT): Include it.
391         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
392         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
393         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
394         (TARGET_INITIALIZER): Include them.
395         * rtl.c (rtl_check_failed_block_symbol): New function.
396         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
397         (block_symbol, object_block): New structures.
398         (rtx_def): Add a block_symbol field to the union.
399         (BLOCK_SYMBOL_CHECK): New macro.
400         (rtl_check_failed_block_symbol): Declare.
401         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
402         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
403         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
404         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
405         * output.h (output_section_symbols): Declare.
406         (object_block): Name structure.
407         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
408         (default_use_anchors_for_symbol_p): Declare.
409         * Makefile.in (RTL_BASE_H): Add vec.h.
410         (explow.o): Depend on output.h.
411         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
412         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
413         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
414         (rs6000_use_blocks_for_constant_p): New function.
415
416 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
417
418         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
419
420 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
421
422         PR tree-opt/25680
423         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
424         IMAGPART_EXPR.
425
426 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
427
428         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
429         is_aliased.
430         Update all users.
431
432 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
433
434         PR middle-end/26334
435         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
436         instead of DECL_REGISTER.
437
438 2006-02-18  Olivier Hainque  <hainque@adacore.com>
439
440         PR ada/13408
441         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
442
443 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
444
445         PR target/24837
446         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
447         * opth-gen.awk: Handle Var and InverseMask together.
448         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
449         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
450         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
451         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
452         used together.
453         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
454         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
455         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
456         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
457         LINUX_DYNAMIC_LINKER): Define.
458         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
459         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
460         TARGET_GLIBC.
461         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
462         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
463         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
464         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
465         (TARGET_C99_FUNCTIONS): Don't define.
466         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
467         GLIBC_DYNAMIC_LINKER.
468         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
469         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
470         GLIBC_DYNAMIC_LINKER64): Define.
471         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
472         LINUX_DYNAMIC_LINKER64.
473         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
474         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
475         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
476         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
477         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
478         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
479         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
480         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
481         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
482         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
483         and LINUX_DYNAMIC_LINKER32.
484         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
485         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
486         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
487         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
488         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
489         TARGET_GLIBC.
490         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
491         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
492         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
493         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
494         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
495         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
496         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
497         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
498         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
499         LINUX_DYNAMIC_LINKER): Define.
500         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
501         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
502         GLIBC_DYNAMIC_LINKER64): Define.
503         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
504         LINUX_DYNAMIC_LINKER64.
505         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
506         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
507         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
508         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
509         LINUX_DYNAMIC_LINKER): Define.
510         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
511         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
512         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
513         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
514         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
515         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
516         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
517         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
518         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
519         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
520         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
521         * doc/invoke.texi (-muclibc): Remove caveat about supported
522         targets.
523
524 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
525
526         * doc/cpp.texi (__TIMESTAMP__): Document.
527
528 2006-02-17  Roger Sayle  <roger@eyesopen.com>
529
530         PR middle-end/25600
531         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
532         C is one less than the width of X (and related transformations).
533         * simplify_rtx.c (simplify_unary_operation_1): Transform 
534         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
535         depending on STORE_FLAG_VALUE, were C is one less then the
536         width of X.
537
538 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
539
540         Fix PR tree-optimization/26341
541         * tree-ssa-operands.c (add_virtual_operand): Remove assert 
542         about NAME_MEMORY_TAG's.
543
544 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
545
546         PR target/26255
547         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
548         with hardware float support, and software float support.  Add fcpy
549         alternative to hardware patterns.  Add alternatives to copy between
550         general and floating-point registers to the 32-bit pattern.
551         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
552         secondary reload to load a QI or HI mode constant into a floating
553         point register. 
554         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
555         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
556
557 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
558
559         PR target/26272
560         * config/rs6000/darwin.md (load_macho_picbase_si): Add
561         pc to the pattern.
562         (load_macho_picbase_di): Likewise.
563
564 2006-02-16  Jeff Law  <law@redhat.com>
565
566         * tree-vrp.c (set_value_range_to_nonnegative): New function.
567         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
568         (ssa_name_nonzero_p): Likewise.
569         (get_value_range): Return NULL if VRP is not running.
570         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
571         VRP routines do not discover a range.
572         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
573         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
574         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
575         (tree_expr_nonnegative_p): Similarly.
576         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
577         (restore_nonzero_vars_to_original_value): Remove.
578         (unsafe_associative_fp_binop): Remove.
579         (tree_ssa_dominator_optimize): Remove initialization and
580         finalization of nonzero_vars and nonzero_vars_stack.
581         (dom_opt_initialize_block): No longer push marker on
582         nonzero_vars_stack.
583         (dom_opt_finalize_block): No longer call
584         restore_nonzero_vars_to_original_value.
585         (record_equivalences_from_phis): No longer look for
586         nonzero PHI arguments.
587         (cprop_into_successor_phis): No longer propagate nonzero
588         property into PHI arguments.  Lose unused argument.  Caller
589         updated.
590         (record_equivalences_from_stmt): No longer record nonzero
591         values for SSA_NAMEs.
592         (lookup_avail_expr): No longer use nonzero_vars.
593
594         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
595         for sizetype when sizetype is unsigned.
596
597 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
598
599         PR rtl-optimization/25603
600         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
601         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
602         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p 
603         with new meaning of SETS.
604
605 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
606
607         PR target/20353
608         PR target/24578
609         PR target/24837
610         * config/linux.opt: New file.
611         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
612         LINUX_DYNAMIC_LINKER): Define.
613         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
614         * config.gcc (*-*-linux*): Define extra_options.
615         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
616         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
617         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
618         GLIBC_DYNAMIC_LINKER.
619         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
620         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
621         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
622         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
623         * doc/invoke.texi (GNU/Linux Options): New section.
624
625 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
626
627         * config/sparc/sparc.md (setjmp): Rewrite.
628         (setjmp_32): Delete.
629         (setjmp_64): Likewise.
630
631 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
632
633         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
634          previous change.
635
636 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
637
638         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
639         read-write uses.
640
641 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
642
643         PR rtl-optimization/26296
644         * Makefile.in (loop-invariant.c): Add except.h dependency.
645         * loop-invariant.c: Include except.h.
646         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
647
648 2005-02-16  Paul Brook  <paul@codesourcery.com>
649
650         * reload1.c (emit_reload_insns): Invalidate dead input registers used
651         for reloads.
652
653 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
654
655         PR rtl-optimization/25636
656         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
657         when deciding whether an insn is an initializing insn.
658
659 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
660
661         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
662         (tree_code_size): Ditto.
663         * tree.h (struct tree_memory_tag): Remove parent_var.
664         (struct tree_struct_field_tag): New.
665         (SFT_OFFSET): New.
666         (SFT_SIZE): New.
667         (union tree_node): Add sft member.
668         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
669         specially here.
670         (create_sft): Add size and offset argument, set SFT_OFFSET and
671         SFT_SIZE.
672         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
673         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
674         * tree-flow-inline.h (get_subvar_at): Update for
675         SFT_OFFSET/SFT_SIZE.
676         (var_can_have_subvars): Ditto.
677         (overlap_subvar): Ditto.
678         * print-tree.c (print_node): Print out interesting things for
679         SFT's.
680         * tree-flow.h (struct subvar): Remove offset and size members.
681         * tree-ssa-operands.c (get_expr_operands): Update for
682         get_indirect_ref_operands changes.
683         (get_indirect_ref_operands): Call add_virtual_operand instead of
684         add_stmt_operand.  Only recurse on base var if requested.
685         (access_can_touch_variable): New function.
686         (add_stmt_operand): Split virtual operand handling into ...
687         (add_virtual_operand): Here.  Add offset, size, and for_clobber
688         arguments.  Prune alias sets.
689         (add_call_clobber_ops): Call add_virtual_operand.
690         
691 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
692
693         PR middle-end/26300
694         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
695
696         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
697         than TREE_CODE as index into omp_clause_num_ops array.
698
699 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
700
701         PR rtl-optimization/26184
702         * modulo-sched.c (generate_reg_moves): Free bitmap vector
703         uses_of_defs.
704         * modulo-sched.c (sms_schedule): Free g_arr pointer.
705         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
706         must_precede, must_follow and tobe_scheduled.
707
708         PR other/26147
709         * opts.c (common_handle_option): Free new_option pointer.
710         * df-core.c (df_analyze): Free postorder pointer.
711
712 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
713
714         * Makefile.in: Fix the examples about the use of stamps
715
716 2006-02-15  Michael Matz  <matz@suse.de>
717
718         PR middle-end/22275
719
720         * stor-layout.c (layout_decl): Zero-width bitfields aren't
721         influenced by maximum_field_alignment or DECL_PACKED.
722         (update_alignment_for_field): Ditto.
723         (place_field): Ditto.
724         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
725         this behaviour.
726
727 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
728
729         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
730         (debug_flow_info): Pass it.
731         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
732         * bb-reorder.c (reorder_basic_blocks): Likewise.
733         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
734         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
735         * flow.c (life_analysis, recompute_reg_usage): Likewise.
736         * gcse.c (gcse_main, bypass_jumps): Likewise.
737         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
738         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
739         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
740         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
741         * rtl.h (dump_flow_info): Adjust prototype.
742         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
743         * var-tracking.c (variable_tracking_main): Likewise.
744         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
745         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
746         options.
747
748 2006-02-15  Marcin Dalecki <martin@dalecki.de>
749
750         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
751         construction.
752
753 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
754
755         PR tree-optimization/26209
756         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
757         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
758         eh edges.
759         * tree-cfg.c (replace_uses_by): Do not alter cfg.
760
761 2006-02-14  Roger Sayle  <roger@eyesopen.com>
762
763         PR middle-end/23670
764         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
765         (X,Y) and the corresponding symmetry related transformations.
766         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
767         (X,Y) and its symmetry related transformations.
768
769 2006-02-14  Roger Sayle  <roger@eyesopen.com>
770
771         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
772         and GEU.
773
774 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
775
776         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
777
778 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
779
780         PR bootstrap/26053
781         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
782         support COMDAT group.
783         * configure: Regenerate.
784
785 2006-02-14  Roger Sayle  <roger@eyesopen.com>
786
787         PR middle-end/26279
788         PR middle-end/26280
789         PR middle-end/26283
790         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
791
792 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
793
794         Fix PR tree-optimization/26260
795
796         * doc/invoke.texi (max-fields-for-field-sensitive): Document
797         param.
798         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
799         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
800         * tree-ssa-structalias.c (create_variable_info_for): Use
801         MAX_FIELDS_FOR_FIELD_SENSITIVE.
802         
803 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
804
805         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
806         Document.
807         * tree-ssa-loop-niter.c (number_of_iterations_ne,
808         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
809         of the ending condition.
810         * tree-ssa-loop-manip.c: Include params.h.
811         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
812         tree_unroll_loop): New functions.
813         * tree-pass.h (pass_loop_prefetch): Declare.
814         * loop.c (rest_of_handle_loop_optimize): Test for
815         -fprefetch-loop-arrays-rtl.
816         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
817         * timevar.def (TV_TREE_PREFETCH): New timevar.
818         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
819         pass_loop_prefetch): New.
820         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
821         (cleanup_tree_cfg_loop): Call scev_reset.
822         * common.opt (fprefetch-loop-arrays-rtl): Add.
823         * tree-ssa-loop-prefetch.c: New file.
824         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
825         (new_temp_expr_table): Initialize expr_vars.
826         (free_temp_expr_table): Cleanup expr_vars.
827         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
828         expressions from being merged into one.
829         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
830         (struct tree_niter_desc): Add control, bound and cmp fields.
831         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
832         Declare.
833         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
834         (tree-cfgcleanup.o): Add SCEV_H dependency.
835         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
836         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
837
838 2006-02-14  Richard Guenther  <rguenther@suse.de>
839
840         PR tree-optimization/26258
841         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
842         in PHI argument processing.
843
844 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
845
846         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
847         new expression in the requested machine mode.
848
849 2006-02-13  Roger Sayle  <roger@eyesopen.com>
850
851         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
852         directly, instead let do_compare_rtx_and_jump handle this for us.
853         * expr.c (expand_expr_real_1): Likewise.
854         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
855         before do_jump_by_parts_greater.
856         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
857         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
858
859 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
860
861         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
862
863 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
864
865         PR rtl-optimization/26235
866         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
867         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
868         format.
869
870 2006-02-13  Jeff Law  <law@redhat.com>
871
872         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
873         TRUTH_XOR_EPR.
874
875 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
876
877         PR middle-end/26092
878         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
879         twice if decl is a builtin.  When trying again, call get_callee_fndecl
880         first to verify it is still a builtin.
881
882 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
883
884         * dwarf2out.c (base_type_die): Don't add AT_name here.
885         (subrange_type_die): Don't add AT_name here.
886         (modified_type_die): Rearrange code flow.  Do add AT_name here.
887
888 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
889
890         PR rtl-optimization/26247
891         PR rtl-optimization/26248
892         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
893
894 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
895
896         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
897         * config/fixtfdi.c: Likewise.
898         * config/fixunstfdi.c: Likewise.
899         * config/floatditf.c: Likewise.
900
901 2006-02-13  Roger Sayle  <roger@eyesopen.com>
902
903         PR middle-end/24427
904         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
905         into (X,C2) if C1 is a subset of the bits of C2.  Transform
906         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
907         (X&(C1&~C2))|C2.
908         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
909
910 2006-02-13  Josh Conner  <jconner@apple.com>
911
912         PR target/25376
913         * varasm.c (function_section): Check for section name before
914         calling select_section on targets that define
915         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
916         unlikely_text_section instead of hot_function_section if
917         first_function_block_is_cold.
918
919 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
920
921         PR middle-end/25335
922         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
923
924 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
925
926         PR rtl-optimization/26222
927         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
928         after tree->rtl expansion.
929         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
930         before passing it to emit_move_insn.
931
932 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
933
934         * doc/invoke.texi (-Write-strings): Document that it is enabled by
935         default. 
936         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
937         Clarify documentation.
938         * c-common.h (warn_write_strings): Remove.
939         * c-common.c (warn_write_strings): Likewise.
940         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
941         default for C++.
942
943 2006-02-12  Roger Sayle  <roger@eyesopen.com>
944
945         PR middle-end/25724
946         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
947         (do_jump_parts_zero_rtx): New function renamed from
948         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
949         (do_jump_parts_equality_rtx): New function split out from
950         do_jump_parts_equality.  Old implementation renamed as above.
951         Call do_jump_parts_zero_rtx if either operand is zero.
952         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
953         do all of the heavy lifting.
954         (do_compare_rtx_and_jump): Handle multi-word comparisons by
955         calling either do_jump_by_parts_greater_rtx or
956         do_jump_by_parts_equality_rtx.
957         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
958         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
959         moved to do_compare_rtx_and_jump, call it directly.
960         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
961         mode argument.  Call do_compare_rtx_and_jump.
962         (emit_case_nodes): Update calls to do_jump_if_equal.
963
964 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
965
966         PR rtl-optimization/26225
967         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
968
969 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
970
971         PR rtl-optimization/26232
972         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
973
974 2006-02-11  Jason Merrill  <jason@redhat.com>
975
976         PR tree-opt/24365
977         * tree-inline.c (declare_return_variable): Just don't use the
978         modify target if it's a gimple complex reg and the return slot
979         isn't.
980
981 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
982
983         * doc/contrib.texi: Update my entry.
984
985 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
986
987         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
988
989 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
990
991         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
992         expensive.
993
994 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
995
996         * doc/invoke.texi (-floop-optimize2): Removed.
997         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
998         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
999         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1000         * common.opt (floop-optimize2): Removed.
1001         (fmove-loop-invariants): Enabled by default.
1002
1003 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1004
1005         * tree-if-conv.c (combine_blocks): Free the result of
1006         get_loop_exit_edges.
1007
1008 2006-02-10  Jeff Law  <law@redhat.com>
1009
1010         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1011
1012         PR tree-optimization/26213
1013         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
1014         loop trying to follow SSA_NAME_VALUE chains.
1015
1016 2006-02-10  Richard Guenther  <rguenther@suse.de>
1017
1018         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
1019         deal with structures that end in implicitly variable sized arrays.
1020
1021 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1022
1023         PR rtl-optimization/24762
1024         * df-scan.c (df_bb_refs_record): Record correct registers defined on
1025         eh edges.
1026
1027 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
1028
1029         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
1030         (struct ivopts_data): Add regs_used field.
1031         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
1032         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
1033         instead of loop_data->regs_used;
1034         (free_loop_data): Do not free aux fields for loops.
1035         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
1036         and tree_ssa_iv_optimize_finalize.
1037
1038 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
1039
1040         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
1041
1042 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1043
1044         PR target/26141
1045         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
1046         computing the effective result type.
1047
1048 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
1049
1050         PR inline-asm/16194
1051         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
1052         (tree_overlaps_hard_reg_set): Declare.
1053         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
1054         type and signature to match function type expected by walk_tree.
1055         (tree_overlaps_hard_reg_set): New function.
1056         (decl_conflicts_with_clobbers_p): Rename to:
1057         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
1058         Use tree_overlaps_hard_reg_set.  Changed caller.
1059         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
1060         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
1061         * cris.c (cris_md_asm_clobbers): Likewise.
1062
1063 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1064
1065         * reload1.c (emit_input_reload_insns): Delete code that tries to
1066         inherit using find_equiv_reg.
1067
1068 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1069
1070         * c-common.h (flag_const_strings): Don't declare.
1071         * c-common.c (flag_const_strings): Remove.
1072         * c.opt (fconst_strings): Remove.
1073         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
1074         <OPT_Wwrite_strings>: Don't set flag_const_strings.
1075         (c_common_init_options): Don't set flag_const_strings.
1076         * doc/invoke.texi (-fno-const-strings): Remove documentation.
1077
1078 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
1079
1080         * arm.md (tlobits_cbranch): New pattern.
1081         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
1082         testing a single bit.
1083
1084 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1085
1086         PR tree-opt/26179
1087         * tree-ssa-pre.c (create_component_ref_by_pieces):
1088         Handle RETURN_DECL like VAR_DECL.
1089
1090 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1091
1092         PR middle-end/26134
1093         * fold-const.c (fold_indirect_ref_1): Fold 
1094         "*(foo *)&complexfoo" to "__real__ complexfoo"
1095         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
1096
1097 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
1098
1099         * tree-flow-inline.h (var_can_have_subvars): 
1100         Volatile variables should not have subvariables.
1101
1102 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
1103
1104         PR 26180
1105         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
1106         multiplying unsigned values.
1107         Tidy comments.
1108
1109 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
1110
1111         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
1112
1113 2006-02-08  Jason Merrill  <jason@redhat.com>
1114
1115         PR c++/25979
1116         * tree.def: Elaborate on difference from MODIFY_EXPR.
1117         * doc/c-tree.texi (INIT_EXPR): Likewise.
1118         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
1119         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
1120         (gimplify_target_expr): Likewise.
1121         (gimplify_cond_expr): Remove target handling.
1122         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
1123         (gimplify_expr): Clobber it here.
1124         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
1125         Do return slot optimization if we have an INIT_EXPR.
1126
1127         PR tree-opt/24365
1128         * tree-inline.c (declare_return_variable): Also clear 
1129         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
1130
1131         PR c++/16405
1132         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
1133
1134         PR middle-end/22439
1135         * gimplify.c (gimplify_one_sizepos): Fix typo.
1136
1137 2006-02-08  Jeff Law  <law@redhat.com>
1138
1139         PR tree-optimization/21417
1140         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
1141         across a backedge if the control statement at the end of the
1142         block is data dependent on other statements in the same block.
1143         (record_temporary_equivalences_from_stmts): Remove over-conservative
1144         test for threading across backedges.
1145
1146         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
1147         control statement, handle all three special cases in the same
1148         manner as they all have the same desired solution.  No longer
1149         special case edge flag updating when the post dominator is
1150         the exit block.
1151
1152 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1153
1154         * tree.def (CHAR_TYPE): Remove.
1155         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
1156         * dwarf2out.c (base_type_die, is_base_type): Likewise.
1157         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
1158         (gen_string_type_die): Delete unreachable function.
1159
1160         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
1161         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
1162         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
1163         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
1164         * builtins.c (type_to_class): Likewise.
1165         * fold-const.c (fold_convert, build_range_check,
1166         merge_ranges): Likewise.
1167         * expr.c (count_type_elements): Likewise.
1168         * c-pretty-print.c (pp_c_type_specifier): Likewise.
1169         * stor-layout.c (layout_type): Likewise.
1170         * ipa-type-escape.c (type_to_consider): Likewise.
1171         * gimplify.c (omp_firstprivatize_type_sizes,
1172         gimplify_type_sizes): Likewise.
1173         * explow.c (promote_mode): Likewise.
1174         * tree-sra.c (is_sra_scalar_type): Likewise.
1175         * varasm.c (output_constant): Likewise.
1176         * tree-inline.c (remap_type_1): Likewise.
1177         * convert.c (convert_to_pointer, convert_to_real,
1178         convert_to_integer, convert_to_complex): Likewise.
1179
1180 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
1181
1182         * df-scan.c (df_def_record_1): A set destination may
1183         be a parallel regardless of mode.
1184
1185 2006-02-08  Roger Sayle  <roger@eyesopen.com>
1186
1187         PR target/22209
1188         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
1189         * config/mips/_tilib.c: Remove.
1190         * config/fixtfdi.c: New libgcc source file.
1191         * config/fixunstfdi.c: New source file.
1192         * config/floatditf.c: New source file.
1193         * config/floatunditf.c: New souce file.
1194         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
1195         files above instead of config/mips/_tilib.c.
1196         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
1197
1198 2006-02-08  Jeff Law  <law@redhat.com>
1199
1200         PR tree-optimization/26169
1201         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
1202         threading jumps.
1203
1204 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
1205
1206         * df.h (DF_REG_SIZE): Return the length of the initialized
1207         part of the array.
1208
1209 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
1210
1211         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
1212         __muldf3): Return a correctly signed zero.
1213
1214 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
1215
1216         * passes.c (register_one_dump_file): Accept the current properties
1217         instead of pass number.  Adjust call to dump_register.  Remove
1218         duplicated code.
1219         (register_dump_files): Now a wrapper around...
1220         (register_dump_files_1): ... this one.  Do not modify the pass
1221         structure.
1222         (next_pass_1): Cosmetic fix.
1223         (execute_todo): Keep second parameter only.  Use curr_properties
1224         instead of fetching it from the pass structure.  Check and set
1225         last_verified.
1226         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
1227         instead of fetching it from the pass structure.  Fix calls to
1228         execute_todo.  Update curr_properties and initialize .vcg RTL dump
1229         after running the pass.  Reset last_verified.
1230         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
1231         at the beginning.
1232         (FIRST_AUTO_NUMBERED_DUMP): New.
1233         (dump_register): Remove "num" parameter, assign it within the
1234         function.
1235         (get_dump_file_name): Modify template for dumps.
1236         * tree-dump.h (dump_register): Adjust prototype.
1237         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
1238         (PROP_trees): Add PROP_gimple_lomp.
1239         (TODO_set_props): New.
1240         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
1241         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
1242         * cfgexpand.c (pass_expand): Destroy PROP_trees.
1243
1244 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
1245
1246         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
1247         (sparc64-*-linux*): Likewise.
1248         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
1249         * config/sparc/t-linux: New file.
1250         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
1251         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
1252         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
1253         -m32 -mlong-double-128.
1254
1255         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
1256         * config/alpha/t-linux: New file.
1257         * config/alpha/libgcc-alpha-ldbl.ver: New file.
1258
1259         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
1260         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
1261         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
1262         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
1263         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
1264         (CPP_ARCH32_SPEC): Remove.
1265
1266 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
1267
1268         PR tree-optimization/26145
1269         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
1270         bbs pointer.
1271
1272 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1273
1274         PR target/26109
1275         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
1276         >= 240000 when generating code for SOM runtime.
1277         (output_indirect_call): Don't use "b,l" instruction for indirect calls
1278         to $$dyncall when generating code for SOM runtime..
1279
1280 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1281
1282         PR c++/18150
1283         * doc/invoke.texi (-Wsequence-point): Update documentation
1284         that -Wsequence-point is implemented for C++ as well.
1285
1286 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1287
1288         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
1289         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
1290         (LIB_SPEC): Likewise.
1291         * doc/invoke.texi (SPARC options): Document -pthread.
1292
1293 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
1294
1295         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
1296         PIC addresses.
1297
1298 2006-02-07  Roger Sayle  <roger@eyesopen.com>
1299
1300         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
1301         Correct comment describing BOOLEAN_TYPE.
1302
1303 2006-02-07  Dirk Mueller  <dmueller@suse.com>
1304
1305         * c.opt: C++ frontend supports -Wdiv-by-zero.
1306         * c-opts.c (c_common_handle_option): Remove dead case.
1307
1308 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1309
1310         * configure.ac (TLS assembler check): Do not enable TLS by
1311         default on SPARC/Solaris before version 10.
1312         * configure: Regenerate.
1313
1314 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
1315
1316         * doc/invoke.texi (xl-compat): Document conversion and support
1317         routine names.
1318
1319 2006-02-07  Jeff Law  <law@redhat.com>
1320
1321         * tree-vrp.c (find_conditional_asserts): Update comments.
1322         (simplify_stmt_for_jump_threading): New.
1323         (identify_jump_threads, finalize_jump_threads): New.
1324         (vrp_finalize): Call identify_jump_threads.
1325         (execute_vrp): Call finalize_jump_threads.
1326         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
1327         (vrp_element, vrp_data, vrp_element_p): Remove.
1328         (vrp_hash_elt, vrp_variables_stack): Remove.
1329         (vrp_hash, vrp_eq, record_range): Remove.
1330         (simplify_cond_and_lookup_avail_expr): Remove.
1331         (extract_range_from_cond): Remove.
1332         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
1333         (simplify_stmt_for_jump_threading): New.
1334         (dom_thread_across_edge): New wrapper.
1335         (tree_ssa_dominator_optimize): No longer initialize or
1336         finalize any of the VRP datastructures.  Remove iteration
1337         step and simplify as a result of removal of iteration step.
1338         (pass_dominator): Perform a cfg cleanup after DOM.
1339         (dom_opt_finalize_block): Use the new common routines
1340         for threading jumps.  Simplify stack management slightly.
1341         No longer need to unwind VRP state.
1342         (record_equivalences_from_incoming_edge): No longer record
1343         VRP information.
1344         (eliminate_redundant_computations): No longer call
1345         simplify_cond_and_lookup_avail_expr.
1346         * tree-flow.h (potentially_threadable_block): Prototype.
1347         (thread_across_edge): Likewise.
1348         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
1349         (tree-ssa-threadedge.o): Add dependencies.
1350         * tree-ssa-threadedge.c: New file.
1351         * passes.c (init_optimization_passes): Merge PHIs before
1352         calling VRP.  Run VRP again late in the SSA optimization pipeline.
1353
1354 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
1355
1356         * df-core.c (df_set_blocks): Do not dereference function pointers.
1357         (df_finish1): Likewise.
1358         (df_hybrid_search_forward): Likewise.
1359         (df_hybrid_search_backward): Likewise.
1360         (df_iterative_dataflow): Likewise.
1361         (df_analyze_problem): Likewise.
1362         (df_compact_blocks): Likewise.
1363         (df_dump): Likewise.
1364         * df-scan.c (df_rescan_blocks): Likewise.
1365         (df_record_entry_block_defs): Likewise.
1366
1367         * genconditions.c (write_conditions): Guard the definition of
1368         'insn_conditions' with the check on GCC version.
1369         (write_writer): Guard the traversal 'insn_conditions' with
1370         the check on GCC version.
1371
1372 2006-02-07  Richard Guenther  <rguenther@suse.de>
1373
1374         PR c++/26140
1375         Revert
1376         2006-01-30  Richard Guenther  <rguenther@suse.de>
1377         PR c++/23372
1378         * gimplify.c (gimplify_target_expr): Handle easy cases
1379         without creating a temporary.
1380
1381 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
1382
1383         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
1384         use of float in probability computations.  Use edge probabilities
1385         in place of statically computed probabilities.
1386         (min_spec_prob): New static variable.
1387         (schedule_insns): Initialize it.
1388         (GET_SRC_PROB): Removed.
1389         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
1390
1391 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
1392
1393         PR debug/24444
1394         * config/ia64/unwind-ia64.c: Revert last change.
1395         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
1396         (INCOMING_FRAME_SP_OFFSET): Define.
1397
1398 2006-02-06  Roger Sayle  <roger@eyesopen.com>
1399
1400         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
1401
1402 2006-02-07  Ben Elliston  <bje@au.ibm.com>
1403
1404         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
1405         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
1406         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
1407         (ix86_return_in_memory): Handle TDmode.
1408         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
1409         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
1410
1411 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
1412
1413         * reorg.c (dbr_schedule): Use dump_file instead of file.
1414
1415 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
1416
1417         PR target/25917
1418         * config/ia64/predicates.md (extr_len_operand): New predicate.
1419         * config/ia64/ia64.md (extv): Tighten constraints.
1420         (extzv): Ditto.
1421         (*tbit_and_2): Ditto.
1422         (*tbit_and_3): Ditto.
1423         (*tbit_or_2): Ditto.
1424         (*tbit_or_3): Ditto.
1425         (*bit_zero): Ditto.
1426         (*bit_one): Ditto.
1427
1428 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
1429
1430         PR target/23359
1431         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
1432
1433 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1434
1435         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
1436         loop_optimizer_init and loop_optimizer_finalize
1437         * tree-ssa-sink.c (execute_sink_code): Ditto.
1438         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
1439         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
1440         tree_ssa_loop_done): Ditto.
1441         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
1442         * sched-ebb.c: Include output.h.
1443         (schedule_ebbs): Do not use dump argument.
1444         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
1445         * loop.c (loop_dump_stream): Removed.
1446         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
1447         argument.
1448         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
1449         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
1450         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
1451         loop_iterations, strength_reduce, record_biv, record_giv,
1452         final_giv_value, check_final_value, check_ext_dependent_givs,
1453         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
1454         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
1455         dump_file instead of loop_dump_stream.
1456         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
1457         argument dump_file.
1458         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
1459         dump argument.
1460         * flow.c (life_analysis, rest_of_handle_life): Ditto.
1461         * haifa-sched.c: Include output.h
1462         (schedule_insns, sched_init): Do not use dump argument.
1463         * mode-switching.c (optimize_mode_switching): Ditto.
1464         * modulo-sched.c (stats_file): Removed.
1465         (print_node_sched_params): Do not call argument dump_file.
1466         (sms_schedule_by_order, loop_canon_p, sms_schedule,
1467         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
1468         of stats_file.
1469         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
1470         use dump argument.
1471         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
1472         rtl_loop_init, rtl_loop_done): Ditto.
1473         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
1474         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
1475         Ditto.
1476         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
1477         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
1478         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
1479         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
1480         * emit-rtl.c (renumber_insns): Ditto.
1481         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
1482         expand_gimple_basic_block, tree_expand_cfg): Ditto.
1483         * regclass.c (regclass): Ditto.
1484         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
1485         remove_ssa_form, rewrite_out_of_ssa): Ditto.
1486         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
1487         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
1488         Ditto.
1489         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
1490         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
1491         to regclass.
1492         * gcse.c (gcse_file, debug_stderr): Removed.
1493         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
1494         rest_of_handle_gcse): Do not use dump argument.
1495         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
1496         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
1497         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
1498         compute_code_hoist_vbeinout, compute_code_hoist_data,
1499         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
1500         compute_store_table, build_store_vectors, insert_insn_start_bb,
1501         insert_store, remove_reachable_equiv_notes, replace_store_insn,
1502         store_motion): Use dump_file instead of gcse_file.
1503         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
1504         * profile.c (profile_dump_file): Removed.
1505         (branch_prob): Use dump_file instead of profile_dump_file.
1506         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
1507         dump_file.
1508         * tree-ssa-copy.c (dump_copy_of): Ditto.
1509         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
1510         dump file to life_analysis.
1511         * bt-load.c (branch_target_load_optimize): Ditto.
1512         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
1513         renumber_insns.
1514         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
1515         regclass, dbr_schedule): Declaration changed.
1516         * sched-int.h (sched_init): Declaration changed.
1517         * tree-profile.c (tree_profile_dump_file): Removed.
1518         (tree_profile_hooks): Removed profile_dump_file hook.
1519         * rtl-profile (rtl_profile_dump_file): Removed.
1520         (rtl_profile_hooks): emoved profile_dump_file hook.
1521         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
1522         changed.
1523         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
1524         * tree-cfg.c (build_tree_cfg): Ditto.
1525         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
1526         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
1527         Declaration changed.
1528         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
1529         life_analysis and schedule_insns.
1530         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
1531         life_analysis.
1532         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
1533         dbr_schedule.
1534         * config/mips/mips.c (mips_reorg): Ditto.
1535         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
1536         schedule_ebbs.
1537
1538 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
1539
1540         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1541         (s390_mangle_fundamental_type): New.
1542         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1543         Define.
1544
1545         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1546         (alpha_mangle_fundamental_type): New.
1547         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1548         Define.
1549
1550         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1551         Define.
1552         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
1553         Define.
1554         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
1555         (sparc_mangle_fundamental_type): New.
1556
1557 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
1558
1559         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
1560         (s390x-*-linux*): Likewise.
1561         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
1562         * config/s390/t-linux: New file.
1563
1564 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1565
1566         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
1567         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
1568
1569 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
1570
1571         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
1572         (ANTIC_SAFE_LOADS): New macro.
1573         (find_or_generate_expression): Add prototype.
1574         (set_contains_value): Allow null set for sake of not always having
1575         to allocate ANTIC_SAFE_LOADS.
1576         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
1577         Allow COMPONENT_REF too.
1578         (valid_in_set): Allow COMPONENT_REF.
1579         Check ANTIC_SAFE_LOADS too.
1580         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
1581         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
1582         rename.
1583         (can_PRE_operation): Add COMPONENT_REF.
1584         (create_component_ref_by_pieces): New function.
1585         (create_expression_by_pieces): Use create_component_ref_by_pieces.
1586         (insert_aux): Move AGGREGATE_TYPE_P check here.
1587         (compute_avail): Set bb local stmt uids.
1588         (pass_pre): Use TODO_update_ssa_only_virtuals.
1589         
1590 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1591
1592         * configure.ac: Unconditionally disable decimal float by default.
1593         * configure: Regenerate.
1594
1595 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1596
1597         * read-rtl.c (read_name): Terminate reading on EOF.
1598
1599 2006-02-06  Ben Elliston  <bje@au.ibm.com>
1600
1601         * dfp.c (decimal_real_arithmetic): Change second argument type
1602         from int to enum tree_code. Do not always return true, but now
1603         return result of any call to decimal_do helper functions.
1604         * dfp.h (decimal_real_arithmetic): Update prototype.
1605
1606 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
1607
1608         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
1609
1610 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
1611
1612         PR tree-opt/25251
1613         * tree-cfg.c (cleanup_dead_labels): Also don't remove
1614         forced labels.
1615
1616 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1617
1618         * tree-vrp.c (cfg_loops): Removed.
1619         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
1620         Use current_loops instead of cfg_loops.  Pass flags to
1621         loop_optimizer_init.
1622         * cfgloopmanip.c (fix_loop_structure): Update only available
1623         information.
1624         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
1625         loop_optimizer_init.
1626         * modulo-sched.c (build_loops_structure): Removed.
1627         (sms_schedule): Use loop_optimizer_init.
1628         * loop-init.c (loop_optimizer_init): Use flags to determine
1629         which properties of loops to prepare.
1630         (rtl_loop_init): Pass flags to loop_optimizer_init.
1631         * tree-ssa-sink.c (execute_sink_code): Ditto.
1632         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
1633         * tree-ssa-pre.c (init_pre): Ditto.
1634         * cfgloop.h (LOOPS_NORMAL): New.
1635         (loop_optimizer_init): Declaration changed.
1636
1637 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1638
1639         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
1640         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
1641         pa/t-pa.
1642         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
1643         pa/t-pa.
1644         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
1645         pa/x-ada.
1646         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
1647         * pa/t-pa64: Delete quadlib.c rule.
1648         * pa/x-ada: Revert last change.
1649         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
1650
1651 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
1652
1653         PR rtl-optimization/26087
1654         * rtlanal.c (canonicalize_condition): Do not cross basic block
1655         boundaries.
1656
1657 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
1658
1659         PR debug/24444
1660         * config/ia64/ia64.c: Include debug.h.
1661         (MAX_ARTIFICIAL_LABEL_BYTES): New.
1662         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
1663         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
1664         (process_epilogue, process_set, process_for_unwind_directive):
1665         Output unwind info only if requested.  Add CFA info if requested.
1666         Add new arguments as needed.  Adjust callers.
1667         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
1668         incorrect default.
1669         (DWARF2_FRAME_INFO): Define to zero.
1670         * config/ia64/unwind-ia64.c: Remove code that compensated for
1671         the CFA offset error fixed above.
1672         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
1673         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
1674         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
1675         -funwind-tables and -fexceptions to enable frame info.
1676         (dwarf2out_frame_init): Define initial CFA even if
1677         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
1678         DWARF2_UNWIND_INFO is nonzero, not just defined.
1679         (dwarf2out_frame_finish): Output non-EH call frame info only
1680         if DWARF2_FRAME_INFO is nonzero.
1681         (convert_cfa_to_loc_list,
1682         compute_frame_pointer_to_cfa_displacement): Define even if
1683         unwind info is not supported.
1684         (gen_subprogram_die): Use the above unconditionally.  Remove
1685         legacy alternate code.
1686         * toplev.c (compile_file): Compile in call to
1687         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
1688         (lang_dependent_init): Ditto for dwarf2out_frame_init.
1689
1690 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
1691             Jakub Jelinek  <jakub@redhat.com>
1692
1693         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
1694         IBM extended float format long double as "g" on powerpc*-linux.
1695
1696 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1697
1698         PR target/25926
1699         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
1700         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
1701
1702 2006-02-03  Jason Merrill  <jason@redhat.com>
1703
1704         PR c++/25979
1705         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
1706
1707         PR middle-end/25977
1708         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
1709         on the return slot if it's an NRV.
1710
1711 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
1712
1713         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
1714         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
1715         rewrite_use): Do not handle USE_OUTER.
1716         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
1717         add_iv_outer_candidates, may_replace_final_value,
1718         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
1719         (find_interesting_uses_op): Functionality of
1720         find_interesting_uses_outer_or_nonlin moved here.
1721         (find_interesting_uses_outside): Use find_interesting_uses_op.
1722
1723 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
1724
1725         PR target/25960
1726         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
1727
1728 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
1729             Ulrich Weigand  <uweigand@de.ibm.com>
1730
1731         PR target/25864
1732         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
1733         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
1734         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
1735         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
1736         and dxr fields.
1737         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
1738         (s390_rtx_costs): Use the new fields to calculate rtx costs.
1739         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
1740         Define secondary reloads for TFmode moves.
1741         (constant_modes): Add TFmode.
1742         (NR_C_MODES): Set to 8.
1743         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
1744         builtin define.
1745         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
1746         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
1747         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
1748         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
1749         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
1750         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
1751         (FPR mode macro): Add TFmode.
1752         (DSF mode macro): New.
1753         (<de>, <dee> mode attributes): Removed.
1754         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
1755         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
1756         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
1757         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
1758         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
1759         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
1760         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1761         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
1762         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
1763         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1764         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
1765         "*negabs<mode>2", "sqrt<mode>2"):
1766         Changed <de> to <xde>. R constraint replaced by <Rf>.
1767         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
1768         <Rf>.
1769         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1770         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1771         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
1772         splitters.
1773         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
1774         "extenddftf2", "extendsftf2"): New expanders.
1775         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
1776         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1777         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1778         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1779         New options.
1780         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1781         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
1782         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1783         __floatditf): Add a GCC_4.1.0 symbol version tag.
1784         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1785         the new options.
1786
1787 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1788
1789         PR target/25377
1790         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1791         Use targetm.binds_local_p instead of TREE_PUBLIC.
1792
1793 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1794
1795         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1796         on INTEGER_TYPEs to indicate that it denotes a character type.
1797         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1798         signed_char_type_node, unsigned_char_type_node and char_type_node.
1799         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1800         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1801         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1802
1803 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1804             Daniel Berlin  <dberlin@dberlin.org>
1805
1806         * tree-tailcall.c (arg_needs_copy_p): New function.
1807         (eliminate_tail_call): Use arg_needs_copy_p.
1808         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1809         (add_virtual_phis): New function.
1810
1811 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1812
1813         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1814         #ignore instead of #scratch for %g7 .register directive.
1815
1816 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1817
1818         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1819         object files.
1820
1821 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1822
1823         * flow.c (calculate_global_regs_live): Assert that there aren't any
1824         EDGE_FAKE edges.
1825
1826 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1827
1828         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1829         what its name says.
1830         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1831         bsi_after_labels iterator.
1832         * tree-if-conv.c (find_phi_replacement_condition,
1833         replace_phi_with_cond_modify_expr): Likewise.
1834         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1835         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1836
1837 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1838
1839         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1840
1841 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1842
1843         PR 25990
1844         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1845         array after growing it.
1846
1847 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1848
1849         PR middle-end/24901
1850         * fold-const.c (fold_checksum_tree): Change type of buf.
1851
1852 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1853
1854         * reload.c (push_secondary_reload): Initialize t_icode.
1855
1856 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1857
1858         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1859         -msoft-float -mlong-double-128 only issue a warning, but don't
1860         swich to DFmode long double.
1861
1862 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1863
1864         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1865         has a constant equivalent, iterate over equivalents for arg0,
1866         calling simplify_relational_operation and if there's a result
1867         cheaper than X, apply fold_rtx and return the result.
1868
1869 2006-02-01  Jan Hubicka  <jh@suse.cz>
1870
1871         * opts.c (no_unit_at_a_time_default): New global variable.
1872         (decode_options): Use it.
1873         * opts.h (no_unit_at_a_time_default): Declare.
1874
1875 2006-02-01  Paul Brook  <paul@codesourcery.com>
1876
1877         * function.c (assign_parm_setup_reg): Use function argument promotion
1878         rules.
1879         * expr.c (expand_expr_real_1): Use function argument promotion rules
1880         for PARM_DECLs.
1881
1882 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1883
1884         * gcc.c (process_command): Change j to 'unsigned int'.
1885
1886 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1887
1888         PR middle-end/26001
1889         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
1890         Use the corrected index for the character
1891         out of the string constant.
1892
1893 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1894
1895         * mode-switching.c (optimize_mode_switching): Fix size
1896         allocated for bb_info[n_entities].
1897
1898 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1899
1900         * gcc.c (main): Correct type that is allocated for
1901         explicit_link_files.
1902
1903 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
1904
1905         * config/s390/s390.c (init_alignment_context): Set
1906         ALIAS_SET_MEMORY_BARRIER on the MEM.
1907         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
1908
1909 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
1910
1911         PR middle-end/25933
1912         * loop-unroll.c (unroll_loop_runtime_iterations): Free
1913         dom_bbs pointer.
1914         * tree-ssa-live.c (type_var_init): Allocate bitmap after
1915         call to tpa_init.
1916
1917 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
1918
1919         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
1920         * regrename.c: Ditto.
1921         * tree-ssa-loop-im.c: Ditto.
1922         * tree-dump.c: Ditto.
1923         * tree-complex.c: Ditto.
1924         * genrecog.c: Ditto.
1925         * tree-ssa-threadupdate.c: Ditto.
1926         * tracer.c: Ditto.
1927         * java/class.c: Ditto.
1928         * java/jcf-parse.c: Ditto.
1929         * java/resource.c: Ditto.
1930         * java/except.c: Ditto.
1931         * java/jvspec.c: Ditto.
1932         * java/jcf-write.c: Ditto.
1933         * java/jcf-path.c: Ditto.
1934         * java/gjavah.c: Ditto.
1935         * java/zextract.c: Ditto.
1936         * java/jcf-io.c: Ditto.
1937         * java/jcf.h: Ditto.
1938         * java/buffer.c: Ditto.
1939         * java/lang.c: Ditto.
1940         * java/parse-scan.y: Ditto.
1941         * java/lex.c: Ditto.
1942         * java/lex.h: Ditto.
1943         * cfgloopmanip.c: Ditto.
1944         * postreload-gcse.c: Ditto.
1945         * tree-ssa-loop-manip.c: Ditto.
1946         * postreload.c: Ditto.
1947         * tree-ssa-loop-ch.c: Ditto.
1948         * loop.c: Ditto.
1949         * ipa-cp.c: Ditto.
1950         * cppspec.c: Ditto.
1951         * diagnostic.c: Ditto.
1952         * final.c: Ditto.
1953         * genoutput.c: Ditto.
1954         * gcc.c: Ditto.
1955         * cfghooks.c: Ditto.
1956         * cfgloopanal.c: Ditto.
1957         * objc/objc-act.c: Ditto.
1958         * gcov.c: Ditto.
1959         * genextract.c: Ditto.
1960         * genautomata.c: Ditto.
1961         * pretty-print.c: Ditto.
1962         * genemit.c: Ditto.
1963         * cgraphunit.c: Ditto.
1964         * flow.c: Ditto.
1965         * df-scan.c: Ditto.
1966         * haifa-sched.c: Ditto.
1967         * dominance.c: Ditto.
1968         * dbxout.c: Ditto.
1969         * tree-ssa-loop-ivopts.c: Ditto.
1970         * df-core.c: Ditto.
1971         * mode-switching.c: Ditto.
1972         * modulo-sched.c: Ditto.
1973         * graph.c: Ditto.
1974         * ipa-pure-const.c: Ditto.
1975         * cse.c: Ditto.
1976         * fix-header.c: Ditto.
1977         * web.c: Ditto.
1978         * tree-stdarg.c: Ditto.
1979         * ipa-utils.c: Ditto.
1980         * loop-init.c: Ditto.
1981         * ipa-inline.c: Ditto.
1982         * cfganal.c: Ditto.
1983         * global.c: Ditto.
1984         * alloc-pool.c: Ditto.
1985         * dwarf2out.c: Ditto.
1986         * opts.c: Ditto.
1987         * genattrtab.c: Ditto.
1988         * tree-ssa-loop-ivcanon.c: Ditto.
1989         * predict.c: Ditto.
1990         * timevar.c: Ditto.
1991         * lcm.c: Ditto.
1992         * fortran/gfortranspec.c: Ditto.
1993         * regmove.c: Ditto.
1994         * local-alloc.c: Ditto.
1995         * langhooks.c: Ditto.
1996         * function.c: Ditto.
1997         * tree-vectorizer.c: Ditto.
1998         * gcse.c: Ditto.
1999         * ipa-type-escape.c: Ditto.
2000         * alias.c: Ditto.
2001         * tree-if-conv.c: Ditto.
2002         * profile.c: Ditto.
2003         * ipa.c: Ditto.
2004         * tree-data-ref.c: Ditto.
2005         * loop-unroll.c: Ditto.
2006         * treelang/treetree.c: Ditto.
2007         * calls.c: Ditto.
2008         * bt-load.c: Ditto.
2009         * ggc-common.c: Ditto.
2010         * except.c: Ditto.
2011         * coverage.c: Ditto.
2012         * cselib.c: Ditto.
2013         * tree-cfgcleanup.c: Ditto.
2014         * tree-ssa-pre.c: Ditto.
2015         * cfgcleanup.c: Ditto.
2016         * loop-invariant.c: Ditto.
2017         * loop-iv.c: Ditto.
2018         * ipa-prop.c: Ditto.
2019         * print-tree.c: Ditto.
2020         * conflict.c: Ditto.
2021         * ggc-page.c: Ditto.
2022         * sched-deps.c: Ditto.
2023         * regclass.c: Ditto.
2024         * tree-object-size.c: Ditto.
2025         * combine.c: Ditto.
2026         * bb-reorder.c: Ditto.
2027         * resource.c: Ditto.
2028         * var-tracking.c: Ditto.
2029         * cfgloop.c: Ditto.
2030         * df-problems.c: Ditto.
2031         * reg-stack.c: Ditto.
2032         * tlink.c: Ditto.
2033         * gccspec.c: Ditto.
2034         * sched-rgn.c: Ditto.
2035         * tree-ssa-structalias.c: Ditto.
2036         * tree-ssa-reassoc.c: Ditto.
2037         * config/darwin-c.c: Ditto.
2038         * config/darwin.c: Ditto.
2039         * config/arm/arm.c: Ditto.
2040         * cfgrtl.c: Ditto.
2041         * collect2.c: Ditto.
2042         * reload1.c: Ditto.
2043
2044 2006-01-31  Nicolas Pitre  <nico@cam.org>
2045
2046         * arm.md (smaxsi3): Make aware of smax_m1.
2047         (smax_m1): New.
2048
2049 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
2050
2051         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
2052
2053 2006-01-31  Richard Guenther  <rguenther@suse.de>
2054
2055         * doc/invoke.texi (-msselibm): Document.
2056         * target.h (expand_library_builtin): New target hook.
2057         * builtins.c (expand_builtin): Use expand_library_builtin.
2058         (default_expand_library_builtin): New function.
2059         * gcc.c (LINK_GCC_MATH_SPEC): Define.
2060         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
2061         (link_gcc_math_spec): Declare.
2062         (static_specs): Add link_gcc_math_spec.
2063         * expr.h (default_expand_library_builtin): Declare.
2064         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2065         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
2066         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
2067         * config/i386/i386.opt (msselibm): New target option.
2068         * config/i386/i386.c (ix86_builtin_function_variants): New array.
2069         (ix86_init_sse_abi_builtins): New function.
2070         (ix86_expand_library_builtin): Likewise.
2071         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
2072         (override_options): Handle error conditions wrt -msselibm.
2073         (ix86_builtins): Add function codes for SSE2 ABI builtins.
2074         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
2075         * doc/extend.texi (__builtin_sse2_*): Document new target specific
2076         builtins.
2077
2078 2006-01-31  Richard Guenther  <rguenther@suse.de>
2079         Paolo Bonzini  <bonzini@gnu.org>
2080
2081         * doc/install.texi (--disable-libgcc-math): Document.
2082
2083 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
2084
2085         * expr.h (expand_normal): new inline function.
2086         * builtins.c: use it, use EXPAND_NORMAL explicitely.
2087         * dojump.c: use it.
2088         * dwarf2out.c: use it.
2089         * expr.c: use it.
2090         * calls.c: use it.
2091         * expmed.c: use it.
2092         * except.c: use it.
2093         * config/sparc/sparc.c: use it.
2094         * config/i386/i386.c: use it.
2095         * config/rs6000/rs6000.c: use it.
2096         * config/arm/arm.c: use it.
2097         * config/mips/mips.c: use it.
2098         * stmt.c: use it, use EXPAND_NORMAL explicitely.
2099
2100 2006-01-30  Roger Sayle  <roger@eyesopen.com>
2101
2102         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
2103         argv to the appropriate type.
2104
2105 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
2106
2107         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
2108         unreachable code.
2109
2110 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
2111
2112         PR target/26018
2113         * config/s390/s390.c (struct machine_function): New flag
2114         decomposed_literal_pool_addresses_ok_p.
2115         (s390_reorg): Set it before final stage of literal pool transforms.
2116         (s390_decompose_address): Only accept displacements of the form
2117         (minus (label_ref ...) (label_ref ...)) if that flag is set.
2118
2119 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
2120
2121         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
2122         the comparison routine return.
2123
2124 2006-01-30  Michael Matz  <matz@suse.de>
2125
2126         * global.c (find_reg): Only evict for global regs.
2127         Take n_refs into account and dump more info.
2128
2129 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
2130
2131         PR target/14798:
2132         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
2133         (pragma_trap, pragma_nosave_low_regs): Likewise.
2134         (current_function_anonymous_args): Likewise.
2135         (sh_deferred_function_attributes): New variable.
2136         (sh_deferred_function_attributes_tail): Likewise.
2137         (print_operand): For '@', look up trap_exit attribute.
2138         (calc_live_regs): Look up trapa_handler attribute.  For trapa
2139         handlers, save/restore fpscr, but don't do any other
2140         interrupt-specific saves.
2141         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
2142         Fix check for partially saved registers to check for SHmedia.
2143         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
2144         (sh_output_function_epilogue): Don't clear any of the removed
2145         variables.
2146         (sh_insert_attributes): Don't check pragma_interrupt.
2147         Insert deferred attributes.  Check that interrupt attribute is
2148         present for other attributes that require its presence.
2149         (sh_attribute_table): Add new attributes trapa_handler and
2150         nosave_low_regs.
2151         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
2152         Don't check for pragma_interrupt.  Don't store argument.
2153         * sh.h (pragma_interrupt, sp_switch): Don't declare.
2154         (sh_deferred_function_attributes): Declare.
2155         (sh_deferred_function_attributes_tail): Likewise.
2156         * sh.md (sp_switch_1): Add operand.  Change generator caller.
2157         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
2158         (*return_i): Don't use when trap_exit attribute is in effect.
2159         (*return_trapa): New insn pattern.
2160         * sh-c.c: New file.
2161         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
2162         setting c_target_objs and cxx_target_objs.
2163         * t-sh: Add rule for sh-c.o.
2164
2165 2006-01-30  Richard Guenther  <rguenther@suse.de>
2166
2167         PR c++/23372
2168         * gimplify.c (gimplify_target_expr): Handle easy cases
2169         without creating a temporary.
2170
2171 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
2172
2173         * vec.h (safe_grow): Remove duplicated line.
2174
2175 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
2176
2177         PR 25874
2178         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
2179         (expand_omp): ... here.
2180         (expand_omp_parallel): Only remove barriers for combined
2181         parallel+workshare constructs.
2182
2183 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2184
2185         Revert
2186
2187         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
2188         * tree.c (build_qualified_type): Chain the new type to the original
2189         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
2190         a POINTER_TYPE or a REFERENCE_TYPE respectively.
2191         (build_pointer_type_for_mode): Only return unqualified types.
2192         (build_reference_type_for_mode): Likewise.
2193
2194 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
2195
2196         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
2197         * Makefile.in (CXX_COMPAT_WARN): Define.
2198         * configure: Regenerate.
2199
2200 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2201
2202         PR tree-opt/25911
2203         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
2204         to an if check.
2205
2206 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2207
2208         * toplev.c: Fix thinko.
2209
2210 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2211             Marcin Dalecki  <martin@dalecki.de>
2212
2213         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
2214         (push_srcloc): Use XNEW.
2215         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
2216
2217 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
2218
2219         * df-core.c (df_set_blocks): Deleted all variable.
2220
2221 2006-01-28  Ian Lance Taylor  <ian@airs.com>
2222
2223         * cgraphunit.c (cgraph_assemble_pending_functions): Call
2224         cgraph_output_pending_asms.
2225
2226 2006-01-28  Zack Weinberg  <zackw@panix.com>
2227
2228         * c.opt: Add -W(no-)overlength-strings.
2229         * doc/invoke.texi: Document it.
2230         * c-opts.c (c_common_handle_option): -pedantic implies
2231         -Woverlength-strings, if not explicitly disabled already.
2232         (c_common_post_options): -Woverlength-strings defaults to off, and
2233         is always off for C++.
2234         * c-common.c (fix_string_type): Issue warning about strings longer
2235         than is portable only if warn_overlength_strings.  Rearrange code
2236         a little for clarity.
2237         * configure.in: Check for -Wno-overlength-strings as well before
2238         enabling -pedantic in stage 1.
2239         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
2240         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
2241
2242         * genconditions.c (write_header, write_one_condition)
2243         (write_conditions, write_writer): Consolidate very long strings
2244         that were broken up to fit in C89 portable limit.  Don't use
2245         printf when fputs will do.
2246
2247 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
2248
2249         * combine.c (simplify_comparison <AND>): Check
2250         TRULY_NOOP_TRUNCATION before start using a subreg.
2251
2252         * config/mips/mips.md (*branch_zero<mode>,
2253         *branch_zero<mode>_inverted, *branch_equality<mode>,
2254         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
2255         Remove mode check from comparisons.
2256
2257 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
2258
2259         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
2260
2261 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2262
2263         * expmed.c (const_mult_add_overflow_p): Remove.
2264         * expr.h: Remove the prototype for const_mult_add_overflow_p.
2265
2266         * recog.c (validate_replace_rtx_subexp): Remove.
2267         * recog.h: Remove the prototype for
2268         validate_replace_rtx_subexp.
2269
2270         * integrate.h: Remove the prototype for
2271         copy_decl_for_inlining.
2272         * rtl.h: Remove the prototype for mark_constant_function.
2273         * tree-vectorizer.h: Remove the prototype for
2274         vect_strip_conversion.
2275
2276         * modulo-sched.c (create_partial_schedule,
2277         free_partial_schedule, reset_partial_schedule): Make them
2278         static.
2279
2280         * hooks.c (hook_bool_rtx_int_false): Remove.
2281         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
2282
2283 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
2284
2285         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2286         and -mlong-double-128 are incompatible.
2287         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
2288         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
2289         (TARGET_LIBGCC2_CFLAGS): Define.
2290         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
2291         (TARGET_LIBGCC2_CFLAGS): Same.
2292         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
2293
2294 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
2295
2296         PR c/19606.
2297         * c-typeck.c (build_binary_op): Perform implicit casts of
2298         operands before shortening them.
2299
2300         * cfgloopmanip.c (split_loop_bb): Remove.
2301         * cfgloop.h: Remove the prototype for split_loop_bb.
2302
2303         * cfgloop.c (flow_loop_outside_edge_p): Remove.
2304         * cfgloop.h: Remove the prototype for
2305         flow_loop_outside_edge_p.
2306
2307         * emit-rtl.c (init_virtual_regs): Make it static.
2308         * function.h: Remove the prototype for init_virtual_regs.
2309
2310         * recog.c (peephole2_optimize): Make it static.
2311         * recog.h: Remove the prototype for peephole2_optimize.
2312
2313 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2314
2315         * df-scan.c (df_record_entry_block_defs): Check if
2316         INCOMING_RETURN_ADDR_RTX is defined.
2317
2318 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
2319             Kenneth Zadeck <zadeck@naturalbridge.com>
2320
2321         PR rtl-optimization/24762
2322         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2323         * targhooks.c (hook_void_bitmap): New hook prototype.
2324         * targhoohs.h (hook_void_bitmap): Ditto.
2325         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
2326         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
2327         * target.h (live_on_entry): New function pointer.
2328         * df-scan.c (df_all_hard_regs): Removed.
2329         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
2330         (df_scan_free_internal): Added df->entry_block_defs.
2331         (df_scan_alloc): Ditto.
2332         (df_scan_dump): Ditto.
2333         (df_uses_record): Plumbed flag field properly thru calls.
2334         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
2335         This part fixes PR24762.
2336         (df_bb_refs_record): Added code to make the frame and arg
2337         pointers live in EH blocks.
2338         (df_refs_record): Added call to df_record_entry_block_defs.
2339         (df_record_entry_block_defs): New function.
2340         * df-core.c: Added comments to describe new artifical defs.
2341         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
2342         (entry_block_defs): New field in struct df.
2343         (df_all_hard_regs): Deleted.
2344         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
2345         * df-problems.c (df_ru_bb_local_compute_process_def):
2346         Added code to handle artifical defs in the entry to a function.
2347         (df_ru_bb_local_compute): Ditto.
2348         (df_rd_bb_local_compute_process_def):  Ditto.
2349         (df_rd_bb_local_compute): Ditto.
2350         (df_lr_bb_local_compute): Ditto.
2351         (df_ur_bb_local_compute): Ditto.
2352         (df_urec_bb_local_compute):  Ditto.
2353         (df_chain_create_bb):  Ditto.
2354         (df_ur_local_finalize): Removed entry.
2355         (df_urec_init): Ditto.
2356         (df_urec_local_finalize): Ditto.
2357         (df_ri_bb_compute): Added detection of last use of pseudos.
2358         * Makefile.in (df-scan.o): Updated dependencies.
2359         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
2360         * config/mips/mips.c (mips_set_live_on_entry): Added.
2361         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
2362         for target hook.
2363         * dce.c (marked_insn_p): Added code to handle artifical defs.
2364
2365 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
2366
2367         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
2368         intrinsic.
2369         (_mm_cvtsi128_si64): Likewise.
2370         (_mm_cvtsd_si64): Likewise.
2371         (_mm_cvttsd_si64): Likewise.
2372         (_mm_cvtsi64_sd): Likewise.
2373         (_mm_cvtsi64_si128): Likewise.
2374         * config/i386/mmintrin.h (_m_from_int64): Likewise.
2375         (_mm_cvtsi64_m64): Likewise.
2376         (_m_to_int64): Likewise.
2377         (_mm_cvtm64_si64): Likewise.
2378         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
2379         (_mm_cvttss_si64): Likewise.
2380         (_mm_cvtsi64_ss): Likewise.
2381         (_mm_cvtss_f32): Likewise.
2382
2383 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
2384
2385         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
2386         for pragma redefine_extname.
2387
2388 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
2389
2390         PR target/25864
2391         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
2392         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
2393         -mno-minimal-toc to previous content.
2394         (bispecs): Remove goal.
2395         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
2396         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
2397         compatibility aliases on powerpc-*-*gnu*.
2398         * config/rs6000/libgcc-ppc-glibc.ver: New file.
2399         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
2400         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
2401         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
2402         (ldblspecs): New goal.
2403         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
2404         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
2405         _df_to_tf.
2406         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
2407         L_sf_to_tf or L_df_to_tf is defined.
2408
2409 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
2410             Alan Modra  <amodra@bigpond.net.au>
2411
2412         PR target/25864
2413         * config/rs6000/linux.h (POWERPC_LINUX): Define.
2414         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
2415         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
2416         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
2417         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
2418         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
2419         (rs6000_override_options): Initialize rs6000_ieeequad.
2420         Initialize TFmode format to ibm_extended_format if not
2421         TARGET_IEEEQUAD.
2422         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
2423         ieeelongdouble.
2424         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
2425         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
2426         (function_arg_advance): IBM long double passed in two FPRs, not
2427         split.
2428         (function_arg): IBM long double passed in FPRs.
2429         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
2430         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
2431         Only multireg GPR aligned.
2432         (rs6000_init_libfuncs): Enable IBM long double functions if not
2433         IEEEQUAD.
2434         (rs6000_generate_compare): Use IBM long double compare if not
2435         TARGET_IEEEQUAD.
2436         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
2437         (TARGET_IEEEQUAD): Define.
2438         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
2439         not TARGET_IEEEQUAD.
2440         * config/rs6000/rs6000.md: Enable TFmode patterns if
2441         !TARGET_IEEEQUAD.
2442         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
2443         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
2444         and -mlong-double-128 are incompatible.
2445         * doc/invoke.texi (-mabi): Collect options together.  Add
2446         ibmlongdouble and ieeelongdouble.
2447
2448 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
2449
2450         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
2451         opaque type.
2452         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
2453         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
2454         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
2455         * rtl.h (rtunion_def): Remove rt_ptr.
2456         (X0PTR): Delete.
2457         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
2458         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
2459         * config/i386/winnt.c (i386_pe_mark_dllexport)
2460         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
2461
2462 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
2463
2464         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
2465
2466 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
2467
2468         PR other/24829
2469         PR target/24831
2470         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
2471         pthread_key_delete.  From John David Anglin.  gthrw-ify
2472         pthread_getunique_np only if it it's not a macro.  Delete
2473         UNUSED macro.
2474         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
2475         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
2476         __gthread_objc_condition_signal, __gthread_key_delete): Add
2477         "__attribute__ ((__unused__))" to unused arguments.
2478         (__gthread_recursive_mutex_init_function): Add missing return.
2479         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
2480         gthr-posix95.h: Use macro-based approach for name redirection
2481         on targets missing weakref.
2482
2483 2006-01-26  Zack Weinberg  <zackw@panix.com>
2484
2485         * genconditions.c (write_header): In generated code, #ifdef out
2486         all includes and fake declarations, except includes of bconfig.h
2487         and system.h, unless GCC_VERSION >= 3001.  Do not include
2488         gensupport.h in any case.
2489         (write_conditions): Generate a definition of struct c_test.  Add
2490         a comment to the generated #endif.
2491         (write_one_condition): Escape backslashes in string too.
2492         (write_writer): Generated code must escape backslashes and quote
2493         marks (but not newlines) in the strings it writes.
2494         * Makefile.in (build/gencondmd.o): Update dependencies.
2495
2496 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2497
2498         PR target/25961
2499         * Makefile.in (insn-automata.o): Add header file dependencies.
2500         * genautomata.c: Add includes.
2501
2502 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
2503
2504         PR target/25961
2505         * Makefile.in (insn-automata.o): Add -Wno-error flag.
2506
2507 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2508
2509         * configure.ac: Expect target tools paths to be passed from the toplevel
2510         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
2511         AS_SET_VAR_IF.
2512         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
2513
2514 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
2515
2516         PR c/25892
2517         * c.opt (Wpointer-sign): Init to -1.
2518         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
2519         OPT_pedantic, to 0 otherwise.
2520         * doc/invoke.texi: Update.
2521
2522 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
2523
2524         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
2525         constants provided by 80387 instructions in the destination mode.
2526
2527 2006-01-26  Richard Guenther  <rguenther@suse.de>
2528             Andrew Pinski  <pinskia@physics.uc.edu>
2529
2530         PR tree-opt/21470
2531         partial PR tree-opt/17064
2532         * tree-ssa-structalias.c (intra_create_variable_infos):
2533         Create heap variables for incoming parameters if
2534         flag_argument_noalias > 1.
2535         (find_what_p_points_to): Look through default defs of
2536         parameter decls.
2537
2538 2006-01-26  Jeff Law  <law@redhat.com>
2539
2540         PR ada/25900
2541         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
2542         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
2543         within the VR_RANGE, use the VR_RANGE as the result, not the
2544         VR_ANTI_RANGE.
2545         (adjust_range_with_scev): Reject ranges from SCEV which are out of
2546         bounds for the type.
2547
2548 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
2549
2550         * tree-ssa-alias.c (maybe_create_global_var): Change
2551         subvar walking to an assertion that we don't have subvar'd variables.
2552
2553 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
2554
2555         PR C/25861
2556         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
2557         Use a new variable, inner.  PARM_DECLs are always non-weak.
2558
2559 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
2560
2561         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
2562         --disable-checking.
2563
2564 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
2565
2566         * config/mips/mips.md (*clear_upper32): New combiner pattern.
2567
2568 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
2569
2570         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
2571         (smax_insn, smin_insn, smax_0, smin_0): New.
2572
2573 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
2574
2575         PR target/25947
2576         * config/cris/cris.c (cris_order_for_addsi3): New function.
2577         * config/cris/cris-protos.h: Prototype it.
2578         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
2579         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
2580         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
2581         (split for "op.S1 [rx=rx+i],ry (swapped)")
2582         (split for "op(s|u).S1 [rx=rx+i],ry")
2583         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
2584         Apply cris_order_for_addsi3 when generating addsi3 insns.
2585
2586 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2587
2588         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
2589         (TREE_BLOCK): Add call to EXPR_CHECK.
2590
2591 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
2592
2593         PR 25886
2594         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
2595         * tree-pretty-print.c (dump_omp_clause): Extract from ...
2596         (dump_omp_clauses): ... here.
2597         (dump_generic_node): Handle OMP_CLAUSE.
2598         * tree.c (omp_clause_num_ops): New.
2599         (omp_clause_code_name): New.
2600         (tree_code_size): Handle OMP_CLAUSE.
2601         (tree_size): Likewise.
2602         (make_node): Document handling of OMP_CLAUSE.
2603         (tree_node_structure): Handle OMP_CLAUSE.
2604         (omp_clause_check_failed): New.
2605         (omp_clause_range_check_failed): New.
2606         (omp_clause_operand_check_failed): New.
2607         (build_omp_clause): New.
2608         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
2609         * tree.h (enum omp_clause_code): Declare.
2610         (OMP_CLAUSE_SUBCODE_CHECK): Define.
2611         (OMP_CLAUSE_RANGE_CHECK): Define.
2612         (OMP_CLAUSE_ELT_CHECK): Define.
2613         (omp_clause_check_failed): Declare.
2614         (omp_clause_operand_check_failed): Declare.
2615         (omp_clause_range_check_failed): Declare.
2616         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
2617         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
2618         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
2619         (OMP_CLAUSE_LASTPRIVATE): Likewise.
2620         (OMP_CLAUSE_IF_EXPR): Likewise.
2621         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
2622         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
2623         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
2624         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
2625         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
2626         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
2627         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
2628         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
2629         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
2630         (OMP_CLAUSE_CODE): Define.
2631         (OMP_CLAUSE_SET_CODE): Define.
2632         (OMP_CLAUSE_CODE): Define.
2633         (OMP_CLAUSE_OPERAND): Define.
2634         (struct tree_omp_clause): Declare.
2635         (union tree_node): Add field 'omp_clause'.
2636         * treestruct.def (TS_OMP_CLAUSE): Define.
2637         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
2638         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
2639         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
2640         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
2641         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
2642         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
2643         (OMP_CLAUSE): Define.
2644         * print-tree.c (print_node): Handle OMP_CLAUSE.
2645         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
2646         * c-typeck.c: Likewise.
2647         * gimplify.c: Likewise.
2648         * c-omp.c: Likewise.
2649         * tree-nested.c: Likewise.
2650         * tree-inline.c: Likewise.
2651         * c-parser.c: Likewise.
2652         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
2653         clauses.
2654
2655 2006-01-25  Roger Sayle  <roger@eyesopen.com>
2656
2657         PR rtl-optimization/25703
2658         * combine.c (try_combine): Handle zero_extract and strict_low_part
2659         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
2660
2661 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
2662
2663         * global.c: Fix comment typos.
2664
2665 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
2666
2667         PR target/25758
2668         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
2669         Use output_addr_const instead of assemble_name.
2670
2671 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
2672
2673         * Makefile.in (sched-vis.o): Update dependencies.
2674         * haifa-sched.c (sched_finish): Clear current_sched_info.
2675         * cfg.c (dump_bb_info): New, split from dump_flow_info.
2676         (dump_flow_info): Call it.
2677         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
2678         a slim RTL dump.
2679         * basic-block.h (dump_bb_info): Declare.
2680         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
2681         option, and apply options only for dump files whose TDF_RTL,
2682         TDF_TREE, or TDF_IPA bits match.
2683         * rtl.h: Declare new functions exported from sched-vis.c.
2684         * sched-vis.c: Enable also if scheduling is not used.
2685         (print_value): Print the mode of registers if not inside scheduling.
2686         (print_insn): Make it work outside the scheduler.  Beautify the output
2687         a bit.
2688         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
2689
2690 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2691
2692         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
2693         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
2694         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
2695         depending on the value of CONSTANT_POOL_ADDRESS_P.
2696         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
2697         SYMBOL_REF_DECL.
2698         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
2699         rather than SYMBOL_REF_DECL.
2700         (rtx_constant_pool): Remove const_rtx_sym_htab.
2701         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
2702         (init_varasm_status): Don't initialize const_rtx_sym_htab.
2703         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
2704         Remove handling of const_rtx_sym_htab.
2705         (find_pool_constant): Delete.
2706         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
2707         rather than find_pool_constant.
2708         (get_pool_constant_for_function): Delete.
2709         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
2710         find_pool_constant.
2711         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
2712         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
2713         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
2714         (SYMBOL_REF_CONSTANT): New macro.
2715         (get_pool_constant_for_function): Delete.
2716         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
2717         rather than SYMBOL_REF_DECL.
2718         (i386_pe_mark_dllimport): Likewise.
2719         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
2720         rather than SYMBOL_REF_DECL.
2721         * config/darwin.c (machopic_indirect_data_reference): Likewise.
2722         (machopic_indirect_call_target): Likewise.
2723
2724 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
2725
2726         * flow.c (delete_noop_moves): Add missing EOL to dump message.
2727
2728 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
2729
2730         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
2731
2732 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
2733
2734         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
2735
2736 2006-01-24  David Daney  <ddaney@avtrex.com>
2737
2738         PR java/25816
2739         * configure.ac (enable_tls): New enable option.
2740         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
2741         * configure: Regenerate.
2742         * doc/install.texi (--enable-tls): Document new option.
2743         (--disable-tls): Ditto.
2744
2745 2006-01-24  Richard Henderson  <rth@redehat.com>
2746
2747         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
2748         * alias.c (true_dependence): Respect it.
2749         (canon_true_dependence, write_dependence_p): Likewise.
2750         * builtins.c (get_builtin_sync_mem): Set it.
2751
2752 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
2753
2754         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
2755         efficient way.
2756
2757 2006-01-24  DJ Delorie  <dj@redhat.com>
2758
2759         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2760         for storing constants in single-bit bitfields.
2761
2762 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2763
2764         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2765
2766 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2767
2768         PR tree-opt/25860
2769         * tree-ssa-pre.c (phi_translate): Return NULL
2770         for AGGREGATE_TYPE's.
2771
2772 2006-01-24  Zack Weinberg  <zackw@panix.com>
2773
2774         * genautomata.c (process_state_for_insn_equiv_partition):
2775         Use xcalloc for insn_arcs_array.
2776         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2777         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2778
2779 2006-01-24  Richard Henderson  <rth@redhat.com>
2780
2781         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2782         update all callers.
2783
2784 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2785
2786         PR rtl-optimization/25890
2787         PR rtl-optimization/25905
2788         * combine.c (expand_compound_operation, expand_field_assignment):
2789         Fail if the bitfield's final position is out of bounds.
2790
2791 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2792
2793         PR middle-end/25930
2794         * cgraphunit.c (cgraph_output_in_order): Don't clear
2795         cgraph_asm_nodes until after asm strings have been output.
2796
2797 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2798
2799         * fix-header.c (read_scan_file): Add new parameter imultilib when
2800         calling register_include_chains.
2801
2802 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2803
2804         * omp-low.c: Update documentation.
2805
2806 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2807             Daniel Berlin  <dberlin@dberlin.org>
2808
2809         PR tree-opt/25315
2810         PR tree-opt/25857
2811         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2812         return from the function.
2813
2814 2006-01-22  Zack Weinberg  <zackw@panix.com>
2815
2816         * rtl.def (match_code): Add second argument.
2817         * genpreds.c (write_extract_subexp): New function.
2818         (write_match_code): Add path argument.  Use write_extract_subexp.
2819         (write_predicate_expr): Pass path to write_match_code.
2820         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2821         not perform a mode test.
2822         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2823         a subexpression does not constrain the top-level code set.
2824         * read-rtl.c (read_rtx_variadic): New function.
2825         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2826         * doc/md.texi: Document new notation.
2827         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2828         (cmpsi_operand): ... here, using new notation.
2829
2830 2006-01-22  Zack Weinberg  <zackw@panix.com>
2831
2832         * varray.c: Remove GENERATOR_FILE #ifdefs.
2833
2834 2006-01-22  Zack Weinberg  <zackw@panix.com>
2835
2836         * genautomata.c (output_reserved_units_table): Emit nothing if
2837         description->query_units_num is zero.  Remove extra blank line.
2838         (output_cpu_unit_reservation_p): Short circuit
2839         if description->query_units_num is zero.
2840
2841 2006-01-22  Zack Weinberg  <zackw@panix.com>
2842
2843         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2844         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2845         nor any of the random handful of variables that used to be necessary
2846         when this program was linked with rtlanal.o.  Prune set of forward
2847         function declarations.
2848         (struct attr_desc): Remove static_p field.
2849         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2850         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2851         (attr_string): Do not read the character one past the length of
2852         the string.
2853         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2854         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2855         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2856         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2857         (make_automaton_attrs): New.
2858         (main): Do not call into genautomata.  Call local gen_bypass
2859         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2860         Remove special case for insn_alts.
2861         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2862         varray.h (leftover from previous change).  Prune set of forward
2863         function declarations.  Remove state_alts fields from all
2864         structures.  Remove state_alts_table from struct automaton.
2865         Make everything except main static.  Do not maintain num_dfa_decls.
2866         Do not maintain state_alts fields of various structures.
2867         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2868         (add_arc): Remove state_alts argument.  All callers updated.
2869         (output_reserved_units_table): Emit #ifdef here...
2870         (output_tables): ...not here.  Don't generate state_alts tables.
2871         (expand_automata): Don't generate attributes.
2872         (write_automata): Don't generate state_alts functions.
2873         (main): New function.
2874         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
2875         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
2876         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
2877         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
2878         (BYPASS_P_FUNC_NAME, output_state_alts_table)
2879         (output_automata_list_state_alts_code, output_internal_state_alts_func)
2880         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
2881         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
2882         Delete.
2883         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
2884         * genattrtab.h: Delete file.
2885         * Makefile.in (OBJS-common): Add insn-automata.o.
2886         (insn-automata.o): New rule.
2887         (simple_generated_c): Add insn-automata.c.
2888         (build/genattrtab.o, build/genautomata.o): Update dependencies.
2889         (genprogmd): Add automata.
2890         (build/genattrtab): Needs no extra objects nor libraries.
2891         (build/genautomata): Needs build/vec.o and -lm.
2892
2893 2006-01-22  Zack Weinberg  <zackw@panix.com>
2894
2895         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
2896         (output_dfa_max_issue_rate, locked_states_num): Delete.
2897         (struct automaton): Add locked_states field.
2898         (output_dead_lock_vect): Save number of locked states in
2899         automaton->locked_states.  If it is zero, don't print anything.
2900         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
2901         (output_internal_dead_lock_func): Only test the dead_lock_vect
2902         for automata that have locked states.
2903         (output_statistics): Always print the number of locked states for
2904         each automaton.  Calculate total number of locked states here.
2905         (write_automata): Don't call output_dfa_max_issue_rate.
2906         * genattrtab.c: Define length_unit_log as a const variable.
2907         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
2908         max_insn_queue_index const.
2909         * final.c (length_unit_log): Declare const.
2910         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
2911
2912 2006-01-22  Zack Weinberg  <zackw@panix.com>
2913
2914         * genautomata.c:  Include vec.h, not varray.h.
2915         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
2916         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
2917         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
2918         VEC_* macros operating on appropriately typed vectors, or to
2919         malloced arrays when the size is known in advance.  Const-ify
2920         many char* variables and function arguments.  No functional changes.
2921         * Makefile.in (build/varray.o): Delete rule.
2922         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
2923         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
2924
2925 2006-01-22  Zack Weinberg  <zackw@panix.com>
2926
2927         * gensupport.c: Define get_insn_name and record_insn_name here.
2928         (read_md_rtx): Call record_insn_name as appropriate.
2929         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
2930         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
2931         * genpreds.c, genrecog.c: Don't define get_insn_name nor
2932         record_insn_name.
2933         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
2934         (BUILD_VARRAY): Delete.
2935         (genprognormal): Rename genprogmd.  Fold in all programs from
2936         genprognoprint; also attrtab.
2937         (build/genattrtab): Just mention genautomata.o and varray.o.
2938         Reorganize a bit, add comments to make the categories clearer.
2939
2940 2006-01-22  Zack Weinberg  <zackw@panix.com>
2941
2942         * genconditions.c (condition_table, add_condition): Delete.
2943         (write_conditions): Don't emit n_insn_conditions nor
2944         insn_elision_unavailable.  Issue the gcc version #ifdef here,
2945         inside the table, with no #else clause ...
2946         (write_header): ...not here.
2947         (write_writer): New function.
2948         (main): Don't initialize condition_table.  Use add_c_test.
2949         Call write_writer.
2950         * gensupport.c (init_md_reader_args_cb): Handle multiple input
2951         files on the command line.
2952         (maybe_eval_c_test): Don't check insn_elision_unavailable.
2953         Return -1 if there is no entry in the table, don't abort.
2954         (add_c_test, traverse_c_tests): New functions.
2955         * gensupport.h (insn_elision_unavailable, insn_conditions)
2956         (n_insn_conditions): Delete declarations.
2957         (add_c_test, traverse_c_tests): Declare.
2958         * read-rtl.c: Include gensupport.h.
2959         (read_conditions): New function.
2960         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
2961         (read_rtx_1): If we get EOF when we were looking for an initial
2962         open paren, return 0.  Call read_conditions when appropriate.
2963         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
2964         dummy-conditions.o.  Eliminate references to insn-conditions.o,
2965         or change them to build/gencondmd.o, as appropriate.  Remove
2966         insn-constants.h from $(simple_generated_h) and insn-conditions.c
2967         from $(simple_generated_c).  For all files remaining in those
2968         two lists, add insn-conditions.md to the generator command line.
2969         Give insn-constants.h/s-constants their own rules.  Add rules
2970         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
2971         (build/read-rtl.o): Depend on gensupport.h.
2972         (genprognormal): Include preds.
2973         (genprogearly): Rename genprognoprint; only difference is now that
2974         they don't link with $(BUILD_PRINT).
2975         * dummy-conditions.c: Delete.
2976
2977 2006-01-22  Zack Weinberg  <zackw@panix.com>
2978
2979         * genextract.c: Don't include insn-config.h.  Do include vec.h.
2980         Declare vectors of int, char, and locstr.
2981         (locstr): New typedef.
2982         (struct extraction): Make all array fields into bare pointers.
2983         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
2984         (insn_code_number): Delete.
2985         (accum_extract): New struct.
2986         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
2987         (gen_insn): Take insn_code_number as an argument.  Use an
2988         accum_extract structure instead of loading data directly into
2989         a struct extraction, and having to know how big it might get.
2990         (walk_rtx): Operate entirely on an accum_extract structure.
2991         (print_path): Avoid unnecessary use of printf.
2992         (print_header): New function, split out of main.  Distinguish
2993         more carefully between an unrecognizable insn and an insn that
2994         has the code number of a define_expand.
2995         (main): Pass insn_code_number to gen_insn.  Call print_header
2996         only after parsing.  Avoid unnecessary use of printf.
2997         * Makefile.in (build/vec.o): New rule.
2998         (build/genextract): Depend on build/vec.o.
2999         (build/genextract.o): Don't depend on insn-config.h.
3000
3001 2006-01-22  Zack Weinberg  <zackw@panix.com>
3002
3003         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3004         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3005         practical.  Eliminate per-generator-program link rules.
3006
3007 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3008
3009         PR middle-end/24437
3010         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3011         with a call expr to ...
3012         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3013
3014 2006-01-23  Richard Guenther  <rguenther@suse.de>
3015
3016         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
3017         before make_edge with conditional EDGE_TRUE_VALUE.
3018
3019 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
3020         Jan Hubicka  <jh@suse.cz>
3021         Richard Guenther  <rguenther@suse.de>
3022
3023         PR rtl-optimization/25654
3024         * cfgexpand.c (aggregate_contains_union_type): New function.
3025         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
3026         for structure variables that contain a union type.
3027
3028 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
3029
3030         * gengtype.c (new_structure): Return the structure.
3031         (create_option): Add an extra "next" argument.
3032         (create_field): New function.
3033         (adjust_field_rtx_def): Use create_option and create_field.
3034         Remove a now-unnecessary call to find_structure.
3035         (adjust_field_tree_def): Likewise.
3036         (note_yacc_type): Remove an unnecessary call to find_structure.
3037         * gengtype.h (new_structure): Return the structure.
3038         (create_option): Add an extra argument.
3039         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
3040         (option): Adjust calls to create_option.
3041
3042 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
3043
3044         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
3045
3046 2006-01-22  Paul Brook  <paul@codesourcery.com>
3047         Peter Barada  <peter@the-baradas.com>
3048
3049         * config/m68k/m68k.md: Add Coldfire FPU support.
3050         Define FP mode macro and associated attributes.
3051         Use it for float mode patterns.
3052         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
3053         (LIBCALL_VALUE): Use m68k_libcall_value.
3054         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
3055         (m68k_function_value): Ditto.
3056         (emit_move_sequence): Ditto.
3057         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
3058         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
3059         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
3060         (MULTILIB_EXCEPTIONS): Ditto.
3061         * config/m68k/m68k.opt: Add mcfv4e.
3062         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
3063         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
3064         (m68k_output_function_prologue): Save ColdFire FPU registers.
3065         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
3066         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
3067         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
3068         ColdFire FPU registers.
3069         (m68k_libcall_value, m68k_function_value): New functions.
3070         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
3071         (LIBCALL_VALUE): Use m68k_libcall_value.
3072         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
3073         (MASK_COLDFIRE): Add MASK_CFV4E.
3074         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
3075         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
3076         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
3077         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
3078         (GO_IF_LEGITIMATE_ADDRESS): Use it.
3079         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
3080         * doc/invoke.tex: Document -mcfv4e on m68k.
3081
3082 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
3083
3084         * doc/contribute.texi: Change CVS to SVN and update the corresponding
3085         URL.
3086
3087 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3088
3089         PR c++/16190
3090         * c-opts.c (c_common_handle_option): Don't include
3091         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
3092         * doc/invoke.texi (C++ Dialect Options): Document that
3093         -Wnon-virtual-dtor is no longer included in -Wall.
3094
3095 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
3096
3097         * gcov.c (print_version), gcov-dump.c (print_version),
3098         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
3099         dates.
3100
3101 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
3102
3103         * df-scan.c (problem_SCAN): Added NULL reset function.
3104         (df_scan_reset_blocks): Added code to call reset block function
3105         (df_bb_refs_delete) Fixed comment.
3106         (df_insn_refs_delete): Made tolerant of deleting non existent info
3107         for dataflow problems that need to be reset.
3108         * df-core.c (df_set_blocks): Ditto.
3109         * df.h (struct df_problem): Added reset_fun.
3110         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
3111         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
3112         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
3113         functions to clear out all references to def-use or use-def chains.
3114
3115 2006-01-21  Ben Elliston  <bje@au.ibm.com>
3116
3117         * varasm.c (assemble_real): Initialise data array.
3118
3119 2006-01-20  Paul Brook  <paul@codesourcery.com>
3120
3121         Merge from csl-arm-branch.
3122         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
3123         * config/arm/arm.md (movdi): Force operands[1] to a register
3124         if we have a non-register source.
3125         (*arm_movdi, *movdf_soft_insn): Require that one of the
3126         operands be a register.
3127         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
3128         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
3129
3130 2006-01-20  DJ Delorie  <dj@redhat.com>
3131
3132         * varasm.c (initialize_constant_valid_p): Allow pointers
3133         initialized from integer constants of lesser precision.
3134         (output_constant): Allow non-int-sized pointer modes to be
3135         initialized from integer constants.
3136
3137 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
3138
3139         PR libstdc++/25524
3140         * cppdefault.h (struct default_include): Add multilib flag.
3141         * cppdefault.c (cpp_include_defaults): Set it.
3142         * c.opt (-imultilib): New option.
3143         * c-opts.c (imultilib): New.
3144         (c_common_handle_option): Handle -imultilib.
3145         (c_common_post_options): Likewise.
3146         * c-incpath.c (add_standard_paths, register_include_chains):
3147         Likewise.
3148         * c-incpath.h (register_include_chains): Add extra parameter.
3149         * gcc.c (do_spec_1): Generate -imultilib option.
3150         (The Specs Language): Update %I description.
3151         (process_command): Update copyright notice.
3152         * doc/cppopts.texi (-imultilib): Document.
3153         * doc/invoke.texi (-imultilib): Include in option summary.
3154         (%I): Update specs documentation.
3155
3156 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3157
3158         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
3159
3160 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
3161
3162         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
3163         label numbers.
3164
3165 2006-01-20  Richard Guenther  <rguenther@suse.de>
3166         Steven Bosscher <stevenb.gcc@gmail.com>
3167
3168         PR rtl-optimization/24626
3169         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
3170         EDGE_TRUE_VALUE if in RTL mode.
3171
3172         Revert
3173         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
3174         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
3175
3176 2006-01-20  Dirk Mueller  <dmueller@suse.com>
3177
3178         PR c++/5520
3179         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
3180         instead of a special NOP marker.
3181         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
3182         NOP marker handling.
3183         * c-common.h (empty_body_warning): Add forward declaration.
3184         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
3185         Now uses IS_EMPTY_STMT() instead of special NOP markers.
3186
3187 2006-01-20  Paul Brook  <paul@codesourcery.com>
3188
3189         * Makefile.in (lang_checks): Keep going if mkdir fails.
3190
3191 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3192
3193         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
3194         be able to clean out basic block when not necessary.
3195         (df_scan_free): Fixed to properly delete information if df is
3196         unused before calling df_finish.
3197         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
3198         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
3199         or comment typos.
3200         (df_bb_refs_delete): New function.
3201         (df_refs_delete): Moved per block code to df_bb_refs_delete.
3202         * df-core.c (df_set_blocks): Added code to properly clean out
3203         unused blocks if they are not part of the blocks to consider.
3204         Added additional null check.
3205         (df_compact_blocks): Added basic block parameter to free_bb_fun to
3206         be able to clean out basic block when not necessary
3207         * df.h (df_free_bb_function): Ditto.
3208         (df_bb_refs_delete): New function.
3209         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
3210         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
3211         basic block parameter to be able to clean out basic block when not
3212         necessary.
3213         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
3214         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
3215         Fixed to properly delete information if df is unused before
3216         calling df_finish.
3217
3218 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
3219
3220         PR rtl-optimization/25799
3221         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
3222         Corrected confluence operator to remove bits from op2 before oring
3223         with op1 rather than removing bits from op1.
3224         (df_ru_transfer_function): Corrected test on wrong bitmap which
3225         caused infinite loop.  Both of these problems were introduced in
3226         the dataflow rewrite.
3227
3228 2006-01-19  DJ Delorie  <dj@redhat.com>
3229
3230         * reload1.c (find_reload_regs): Note the details of reload
3231         failures in the dump file.
3232         (spill_failure): Likewise.
3233
3234 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
3235
3236         * loop-iv.c: Include df.h and hashtab.h.
3237         (enum iv_grd_result): New enum.
3238         (DF_REF_IV, DF_REF_IV_SET): New macros.
3239         (struct biv_entry): New.
3240         (df, bivs): New global variables.
3241         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
3242         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
3243         Removed.
3244         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
3245         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
3246         analyzed_for_bivness_p, record_biv): New functions.
3247         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
3248         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
3249         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
3250         UD chains.
3251         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
3252         analysed.
3253         (iv_number_of_iterations): Use new interface to iv analysis.
3254         * loop-unroll.c: Do not include varray.h.
3255         (analyze_iv_to_split_insn): Use new interface to iv
3256         analysis.
3257         * loop-unswitch.c (may_unswitch_on): Ditto.
3258         * df.c (df_bitmaps_free): Only work for bbs for that structures are
3259         allocated.
3260         (df_bb_modify): Realloc tables to the new index.
3261         (df_find_use): New function.
3262         * df.h (df_find_use): Declare.
3263         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
3264         outmode.
3265         * cfgloop.h (struct rtx_iv): Remove analysed field.
3266         (iv_get_reaching_def): Removed.
3267         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
3268         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
3269         (loop-iv.o): Add df.h and hashtab.h dependency.
3270         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
3271
3272 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
3273
3274         PR target/25668
3275         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
3276         Double TFmode.
3277         (__floatundisf, __floatundidf): Likewise.
3278         * libgcc2.h (IS_IBM_EXTENDED): Define.
3279
3280 2006-01-19  DJ Delorie  <dj@redhat.com>
3281
3282         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
3283
3284 2006-01-19  Paul Brook  <paul@codesourcery.com>
3285
3286         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
3287         as nothrow when unwinding tables are disabled.
3288
3289 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3290
3291         PR testsuite/25171
3292         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
3293         of bit-field" when in system header.
3294
3295 2006-01-19  DJ Delorie  <dj@redhat.com>
3296
3297         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
3298         the 16 bit shift limit of the m16c.
3299
3300 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
3301
3302         PR target/22099
3303         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
3304         * config/i386/i386.c (output_set_got): Output the label if we have one
3305         for the TARGET_DEEP_BRANCH_PREDICTION case.
3306
3307 2006-01-19  Jan Hubicka  <jh@suse.cz>
3308             H.J. Lu  <hongjiu.lu@intel.com>
3309             Evandro Menezes <evandro.menezes@amd.com>
3310
3311         * invoke.texi (generic): Document
3312         (i686) Update.
3313         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
3314         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
3315         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
3316         (x86_use_incdec, x86_pad_returns): New variables
3317         (TARGET_CPU_DEFAULT_generic): New constant
3318         (TARGET_CPU_DEFAULT_NAMES): Add generic.
3319         (enum processor_type): Add generic32 and generic64.
3320         * i386.md (cpu attribute): Add generic32/generic64
3321         (movhi splitter): Behave sanely when both partial_reg_dependency and
3322         partial_reg_stall are set.
3323         (K8 splitters): Enable for generic as well.
3324         * predicates.md (incdec_operand): Use TARGET_INCDEC
3325         (aligned_operand): Avoid memory mismatch stalls.
3326         * athlon.md: Enable for generic64, new patterns for 128bit moves.
3327         * ppro.md: Enable for generic32
3328         * i386.c (generic64_cost, generic32_cost): New.
3329         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
3330         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
3331         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
3332         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
3333         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
3334         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
3335         x86_partial_reg_dependency, x86_memory_mismatch_stall,
3336         x86_accumulate_outgoing_args, x86_prologue_using_move,
3337         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
3338         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
3339         Enable for generic.
3340         (x86_use_incdec, x86_pad_returns): New.
3341         (override_options): Add generic32 and generic64, translate "generic"
3342         to generic32/generic64 and "i686" to "generic32", refuse
3343         "generic32"/"generic64" as arch target.
3344         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
3345         (ix86_reorg): Honor PAD_RETURNS.
3346
3347 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
3348
3349         * tree-pretty-print.c (dump_generic_node): Handle
3350         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
3351         * cgraph.c (cgraph_expand_queue): Rename from
3352         cgraph_analyze_queue.  Update all users.
3353         * cgraphunit.c (cgraph_assemble_pending_functions): Process
3354         cgraph_expand_queue.
3355         (cgraph_expand_all_functions): Likewise.
3356         (cgraph_finalize_pending_functions): Remove.  Update callers.
3357
3358         * tree.h (OMP_DIRECTIVE_P): Define.
3359         (OMP_PARALLEL_FN): Define.
3360         (OMP_PARALLEL_DATA_ARG): Define.
3361         (OMP_SECTIONS_SECTIONS): Define.
3362         * tree-pass.h (pass_expand_omp): Declare.
3363         * omp-low.c (struct omp_region): Declare.
3364         (struct omp_context): Remove fields 'parallel_type',
3365         'parallel_start_ix' and 'parallel_start_additional_args'.
3366         Update all users.
3367         (struct omp_for_data): Rename from struct expand_omp_for_data.
3368         (omp_regions): New static variable.
3369         (root_omp_region): New static variable.
3370         (find_omp_clause): Make static.
3371         (is_in_combined_parallel_ctx): Remove.
3372         (is_combined_parallel): New.
3373         (extract_omp_for_data): Move earlier in the file.
3374         (workshare_safe_to_combine_p): New.
3375         (get_ws_args_for): New.
3376         (determine_parallel_type): Move earlier in the file.
3377         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
3378         child function.
3379         (omp_copy_decl): Likewise.
3380         (create_omp_child_function): Likewise.
3381         (lookup_omp_region): New.
3382         (dump_omp_region): New.
3383         (debug_omp_region): New.
3384         (debug_all_omp_regions): New.
3385         (new_omp_region): New.
3386         (scan_omp_parallel): If parallel_nesting_level > 1, the
3387         directive is nested within another parallel directive.
3388         Set OMP_PARALLEL_FN.
3389         (scan_omp_for): Do not try to handle combined parallel+for
3390         cases.
3391         Remove FIXME comment.
3392         (scan_omp_nested): Remove.
3393         (scan_omp_1): Do not call scan_omp_nested when
3394         parallel_nesting_level is > 1.
3395         Do not change the DECL_CONTEXT of local variables found.
3396         (lookup_decl_in_outer_ctx): New.
3397         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
3398         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
3399         (lower_reduction_clauses): Rename from expand_reduction_clauses.
3400         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
3401         If CTX is nested, lookup VAR in the outer context when
3402         building copy assignment.
3403         (lower_send_clauses): Rename from expand_send_clauses.
3404         If CTX is nested, lookup VAR in the outer context when
3405         building copy assignments.
3406         (lower_send_shared_vars): Rename from expand_send_shared_vars.
3407         If CTX is nested, lookup VAR in the outer context when
3408         building copy assignments.
3409         (expand_parallel_call): Rename from build_parallel_call.
3410         Handle combined parallel+workshare cases.
3411         Re-implement to emit code into the CFG.
3412         (list2chain): New.
3413         (expand_omp_parallel): Re-implement to emit code into the CFG.
3414         Call move_sese_region_to_fn to outline the sub-graph
3415         containing the parallel region.
3416         (expand_omp_for_1): Remove.
3417         (expand_omp_for_generic): Re-implement to emit code into the
3418         CFG.
3419         (expand_omp_for_static_nochunk): Likewise.
3420         (expand_omp_for_static_chunk): Likewise.
3421         (expand_omp_for): Likewise.
3422         (expand_omp_sections): Likewise.
3423         (remove_exit_barriers): New.
3424         (expand_omp_synch): New.
3425         (expand_omp): New.
3426         (build_omp_regions_1): New.
3427         (build_omp_regions): New.
3428         (execute_expand_omp): New.
3429         (gate_expand_omp): New.
3430         (pass_expand_omp): Define.
3431         (lower_omp_sections): Rename from expand_omp_sections.
3432         Set OMP_SECTIONS_SECTIONS.
3433         (lower_omp_single_simple): Rename from expand_omp_single_simple.
3434         (lower_omp_single_copy): Rename from expand_omp_single_copy.
3435         (lower_omp_single): Rename from expand_omp_simple.
3436         (lower_omp_master): Rename from expand_omp_master.
3437         (lower_omp_ordered): Rename from expand_omp_ordered.
3438         (lower_omp_critical): Rename from expand_omp_critical.
3439         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
3440         (lower_omp_for): Re-implement.
3441         (lower_omp_parallel): Re-implement.
3442         (lower_regimplify): Rename from expand_regimplify.
3443         (lower_omp_1): Rename from expand_omp_1.
3444         If there are syntax errors in the program, replace every
3445         OpenMP directive with NOP.
3446         Call lower_omp_* instead of expand_omp_*.
3447         (lower_omp): Rename from expand_omp.
3448
3449         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
3450         * tree-gimple.h (enum omp_parallel_type): Remove.
3451         (gimple_boolify): Declare extern.
3452         (find_omp_clause, determine_parallel_type): Remove.
3453
3454         * gimple-low.c (lower_omp_directive): New.
3455         (lower_stmt): Call it.
3456         (record_vars_into): Move from ...
3457         (record_vars): ... here.
3458         Call record_vars_into with current_function_decl.
3459
3460         * gimplify.c (struct gimplify_ctx): Remove fields
3461         combined_pre_p and combined_ctxp.  Update users.
3462         (get_formal_tmp_var): Add documentation.
3463         (gimple_boolify): Make extern.
3464         (gimplify_expr_in_ctx): Remove.  Update callers.
3465         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
3466         will always be a BIND_EXPR.
3467         (gimplify_expr): Handle OMP_RETURN_EXPR.
3468         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
3469         (OMP_PARALLEL): Add 3 operands.
3470         (OMP_SECTIONS): Add 1 operand.
3471         (OMP_RETURN_EXPR): Define.
3472
3473         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
3474         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
3475         * tree-iterator.c (alloc_stmt_list): Assert that we are not
3476         creating a circular free list.
3477         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
3478
3479         * tree-flow.h (move_sese_region_to_fn): Declare.
3480         (record_vars_into): Declare.
3481         * tree-cfg.c (make_omp_sections_edges): New.
3482         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
3483         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
3484         OMP_SECTIONS and OMP_SECTION.
3485         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
3486         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
3487         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
3488         (gather_blocks_in_sese_region): New.
3489         (struct move_stmt_d): Declare.
3490         (move_stmt_r): New.
3491         (move_block_to_fn): New.
3492         (move_sese_region_to_fn): New.
3493
3494         * passes.c (init_optimization_passes): Schedule
3495         pass_expand_omp after pass_init_datastructures.
3496
3497         * tree-ssa-operands.c (get_expr_operands): Handle
3498         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
3499         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
3500
3501 2006-01-19  Jeff Law  <law@redhat.com>
3502
3503         * tree-vrp.c (extract_range_from_assert): Refine the result range
3504         if the variable referenced by the ASSERT_EXPR has a range and
3505         either the tentative result range or the previous range is a
3506         VR_ANTI_RANGE.
3507
3508 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3509
3510         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
3511
3512 2006-01-19  Jan Hubicka  <jh@suse.cz>
3513
3514         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
3515
3516 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
3517
3518         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
3519         (expand_compound_operation, expand_field_assignment): Fail if the
3520         bit lengths of an extract operation are out of range.
3521         (make_extraction): Compute wanted_inner_mode based on the position
3522         and length of the extraction.  Make it extraction_mode for non-constant
3523         positions, and do not modify offset in that case.  When generating a
3524         new MEM, use a mode that can hold the extraction while keeping correct
3525         alignment.  Remove code that supported MEMs wrapped by USEs.
3526         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
3527
3528 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
3529
3530         * config/s390/s390.md ("Y", "y"): New mode attribute.
3531         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
3532         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
3533         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
3534         "*addsi3_imm_cc", "*addsi3_carry1_cc",
3535         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
3536         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
3537         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
3538         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
3539         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
3540         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
3541         "addsi3", "subsi3"): Insn patterns removed.
3542         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
3543         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
3544         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
3545         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
3546         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
3547         "*sub<mode>3_cconly2"): New insn patterns.
3548         ("addsi3", "subsi3"): New expanders.
3549
3550 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
3551
3552         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
3553         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
3554         existing STMT_VINFO_VECTYPE if available.
3555         (vect_mark_relevant): Add special handling for stmts that are
3556         marked as STMT_VINFO_IN_PATTERN_P.
3557         (vect_analyze_loop): Call vect_pattern_recog.
3558         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
3559         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
3560         stmt_info.
3561         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
3562         (vect_recog_func_ptr): New function-pointer type.
3563         * tree-vect-patterns.c: New file.
3564         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
3565         (vect_recog_dot_prod_pattern, vect_pattern_recog):
3566         (vect_pattern_recog_1): New functions.
3567         (vect_pattern_recog_funcs): New array of function pointers.
3568
3569         * tree-vectorizer.h (ternary_op): New enum value.
3570         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
3571         declaration. Revised documentation. Removed redundant dump prints.
3572         Removed redundant argument. Added support for reduction patterns.
3573         (vectorizable_reduction): Added support for reduction patterns.
3574         (vect_transform_stmt): Added support for patterns.
3575
3576         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
3577         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
3578         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
3579         (expand_widen_pattern_expr): New function.
3580         (init_optabs): Initialize new optabs udot_prod_optab,
3581         sdot_prod_optab.
3582         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
3583         (sdot_prod_optab, udot_prod_optab): Define new optabs.
3584         (expand_widen_pattern_expr): New function declaration.
3585         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
3586         tree-codes.
3587         * tree-inline.c (estimate_num_insns_1): Added cases for new
3588         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3589         * tree-pretty-print.c (dump_generic_node): Likewise.
3590         (op_prio): Likewise.
3591         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
3592         * tree-ssa-operands.c (get_expr_operands): Added case for
3593         DOT_PROD_EXPR.
3594         * tree-vect-patterns.c (widened_name_p): New function.
3595         (vect_recog_dot_prod_pattern): Added function implementation.
3596         * tree-vect-transform.c (get_initial_def_for_reduction): Added
3597         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
3598         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
3599         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
3600
3601         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
3602         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
3603         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
3604         (init_optabs): Initialize new optabs widen_ssum_optab,
3605         widen_usum_optab.
3606         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
3607         (widen_ssum_optab, widen_usum_optab): Define new optabs.
3608         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
3609         use instead of type of def.
3610         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
3611         function implementation.
3612         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
3613         widen_ssumv8hi): New.
3614
3615         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
3616         patterns.
3617
3618 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
3619
3620         PR c/25805
3621         * c-decl.c (add_flexible_array_elts_to_size): New function.
3622         (finish_decl): Use it.
3623
3624 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
3625
3626         * diagnostic.h: Include options.h.
3627         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
3628         dependancies for diagnostic.h.
3629         * Makefile.in (DIAGNOSTIC_H): Add options.h.
3630
3631 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
3632
3633         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
3634         (ssa_ro_call_cache_valid): Ditto.
3635         * tree-ssa-alias.c (sort_tags_by_id): New function.
3636         (init_transitive_clobber_worklist): Ditto.
3637         (add_to_worklist): Ditto.
3638         (mark_aliases_call_clobbered): Ditto.
3639         (compute_tag_properties): Ditto.
3640         (set_initial_properties): Ditto.
3641         (compute_call_clobbered): Ditto.
3642         (compute_may_aliases):  Call compute_call_clobbered and grouping.
3643         (compute_flow_sensitive_aliasing): Remove clobbering related code.
3644         (compute_flow_insensitive_aliasing): Grouping now happens in our
3645         caller.
3646         (setup_pointers_and_addressables): Remove clobbering related code.
3647         (add_may_alias): Ditto.
3648         (replace_may_alias): Ditto.
3649         (get_nmt_for): Ditto.
3650         (create_global_var):
3651         (is_escape_site): Return an escape_type enumeration.
3652         * tree-flow-inline.h (is_call_clobbered):  Global var does not
3653         imply call clobbered.
3654         (mark_call_clobbered): Take a reason for marking this. Remove
3655         marking of globalness, and cache invalidation.
3656         (clear_call_clobbered): Remove cache invalidation code.
3657         * tree-dfa.c (dump_variable): If details is on, dump the reason
3658         for escaping.
3659         * tree-outof-ssa.c (create_temp): Copy escape mask from original
3660         variable.
3661         * tree-flow.h (struct ptr_info_def): Add escape mask member.
3662         (struct var_ann_d): Ditto.
3663         (enum escape_type): New.
3664         (mark_call_clobbered): Adjust prototype.
3665         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
3666         are never call clobbered.
3667         Record reasons for escaping.
3668         * tree-ssa-structalias.h (is_escape_site): Update prototype.
3669         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
3670         (ssa_ro_call_cache_valid): Ditto.
3671         (clobbered_v_may_defs): Ditto.
3672         (clobbered_vuses): Ditto.
3673         (ro_call_vuses): Ditto.
3674         (clobber_stats): New.
3675         (init_ssa_operands): Zero out clobber stats.
3676         (fini_ssa_operands): Print out clobber stats.
3677         (get_call_expr_operands): Pass callee fndecl to
3678         add_call_read_ops).
3679         (add_call_clobber_ops): Remove use of cache.
3680         Add use of PURE_CONST information.
3681         (add_call_read_ops): Remove use of cache.
3682         Add use of static not_read information.
3683
3684 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
3685
3686         Introduce TLS descriptors for i386 and x86_64.
3687         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
3688         (TARGET_ANY_GNU_TLS): New macro.
3689         (enum tls_dialect): Added TLS_DIALECT_GNU2.
3690         (struct machine_function): Add tls_descriptor_call_expanded_p.
3691         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
3692         (ix86_current_function_calls_tls_descriptor): Likewise.
3693         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
3694         (override_options): Introduce gnu2 tls dialect.
3695         (ix86_frame_pointer_required): Functions containing TLSCALLs are
3696         not leaves.
3697         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
3698         Likewise.
3699         (legitimize_tls_address): Adjust logic for GNU2 TLS.
3700         (ix86_init_machine_status): Initialize new field.
3701         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
3702         (ix86_tls_module_base): New.
3703         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
3704         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
3705         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
3706         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
3707         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
3708         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
3709         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
3710         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
3711         * config/i386/predicates.md (tls_modbase_operand): New.
3712         (tp_or_register_operand): New.
3713
3714 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
3715
3716         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
3717         (look_for_address_of): Ditto.
3718         (ipa_init): Walk the function decls.
3719         (static_execute): Don't set readonly on FUNCTION_DECL's.
3720
3721 2006-01-18  Roger Sayle  <roger@eyesopen.com>
3722
3723         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
3724         for shifts where the source and destination registers are different.
3725
3726 2006-01-18  Paul Brook  <paul@codesourcery.com>
3727
3728         Merge from csl-arm-branch.
3729         2005-03-14  Julian Brown  <julian@codesourcery.com>
3730         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
3731         (aeabi_llsl): Likewise.
3732         (ashrdi3): Likewise.
3733         (aeabi_lasr): Likewise.
3734         (lshrdi3): Likewise.
3735         (aeabi_llsr): Likewise.
3736         2005-03-10  Julian Brown  <julian@codesourcery.com>
3737         * config.gcc: Disable shared libgcc for SymbianOS.
3738         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
3739
3740 2006-01-18  DJ Delorie  <dj@redhat.com>
3741
3742         * c-pragma.c (handle_pragma_diagnostic): New.
3743         (init_pragma): Register it.
3744         * doc/extend.texi: Document it.
3745
3746         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
3747         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
3748         (diagnostic_context): Add classify_diagnostic[].
3749         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
3750         as errors if they're overridden to DK_WARNING.
3751         (diagnostic_initialize): Initialize classify_diagnostic[].
3752         (diagnostic_set_kind_override): New.
3753         (diagnostic_report_diagnostic): Check for kind changes.
3754         * opts.c (common_handle_option): Take lang_mask.  Update callers.
3755         Handle OPT_Werror_.
3756         * common.opt (Werror=): New.
3757         * doc/invoke.texi: Document -Werror=*
3758
3759 2006-01-18  Jeff Law  <law@redhat.com>
3760
3761         * tree-vrp.c (test_for_singularity): Correct test for new
3762         min limit.  Use operand_equal_p rather than pointer equality
3763         for testing if new min/max values are equal.
3764
3765         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3766         using range information until after propagation and folding.
3767
3768 2006-01-18  Richard Henderson  <rth@redhat.com>
3769             Aldy Hernandez  <aldyh@redhat.com>
3770             Jakub Jelinek  <jakub@redhat.com>
3771             Diego Novillo  <dnovillo@redhat.com>
3772
3773         * omp-low.c: New file.
3774         * c-omp.c: New file.
3775
3776 2006-01-18  Richard Henderson  <rth@redhat.com>
3777             Jakub Jelinek  <jakub@redhat.com>
3778             Diego Novillo  <dnovillo@redhat.com>
3779
3780         * doc/invoke.texi: Document -fopenmp.
3781         * tree-dump.h (debug_function): Declare.
3782         * hooks.c (hook_bool_tree_bool_false): New function.
3783         (hook_tree_tree_null): Remove.
3784         (hook_tree_tree_tree_null): New.
3785         * hooks.h: Update to match.
3786         * tree-pretty-print.c (debug_tree_chain): New.
3787         (print_generic_expr): Handle TDF_CHAIN.
3788         (dump_generic_node): Handle BLOCK.
3789         Do not abort with incomplete SWITCH_EXPRs.
3790         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3791         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3792         print space after directive name.
3793         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3794         Handle OMP_MASTER and OMP_ORDERED.
3795         Handle printing of OMP_BODY just in one place, goto
3796         dump_omp_body in the rest of OMP_* nodes that have
3797         OMP_BODY.
3798         Don't handle clause nodes here.  Update omp statements to
3799         use dump_omp_clauses.
3800         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3801         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3802         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3803         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3804         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3805         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3806         Adjust output for GOMP_PARALLEL.
3807         (dump_omp_clauses): New.
3808         (print_declaration): Dump DECL_VALUE_EXPR.
3809         (op_symbol_1): Split out of op_symbol.
3810         (dumping_stmts): Remove.  Update all users.
3811         * cgraph.c (cgraph_analyze_queue): New.
3812         (cgraph_add_new_function): New.
3813         * cgraph.h (cgraph_analyze_queue): Declare.
3814         (cgraph_add_new_function): Declare.
3815         (cgraph_lower_function): Remove.
3816         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3817         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3818         and TYPE_P nodes in its default clause.
3819         (empty_body_p): New.
3820         (tree_range_check_failed): New.
3821         (build5_stat): New.
3822         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3823         OMP_CLAUSE_REDUCTION_MERGE,
3824         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3825         OMP_CLAUSE_PRIVATE_DEBUG,
3826         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3827         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3828         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3829         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3830         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3831         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3832         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3833         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3834         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3835         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3836         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3837         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3838         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3839         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3840         (TREE_RANGE_CHECK): New.
3841         (empty_body_p): Declare.
3842         (enum omp_clause_default_kind): New.
3843         (build_string_literal): Declare.
3844         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3845         (build5_stat, build5): Declare.
3846         * tree-pass.h (TDF_CHAIN): Define.
3847         * tree-pass.h (PROP_gimple_lomp): Define.
3848         (pass_lower_omp): Declare.
3849         * diagnostic.h (debug_tree_chain): Declare.
3850         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3851         mode_for_size.
3852         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3853         * builtins.c (build_string_literal): Make extern.
3854         * gcc.c (include_spec_function): New.
3855         (static_spec_functions): Add it.
3856         (main): Move load of libgomp.spec ...
3857         (LINK_COMMAND_SPEC): ... here.
3858         (link_gomp_spec): New.
3859         (static_specs): Include it.
3860         (LINK_COMMAND_SPEC): Add link_gomp.
3861         (GOMP_SELF_SPECS): New.
3862         (driver_self_specs): Include it.
3863         (switch_matches): Don't mark inline.
3864         (main): Load libgomp.spec.
3865         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
3866         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
3867         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
3868         * tree-gimple.h (enum omp_parallel): Declare.
3869         (determine_parallel_type): Declare.
3870         (omp_firstprivatize_variable): Declare.
3871         (omp_reduction_init): Declare.
3872         (diagnose_omp_structured_block_errors): Declare.
3873         (struct walk_stmt_info): Add want_return_expr.
3874         (struct walk_stmt_info): Add want_bind_expr, want_locations.
3875         (find_omp_clause): Declare.
3876         (insert_field_into_struct): Declare.
3877         (struct walk_stmt_info): Move from tree-nested.c
3878         (walk_stmts): Declare.
3879         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
3880         to 200505.
3881         * cgraphunit.c (cgraph_lower_function): Make static.
3882         (cgraph_finalize_pending_functions): New.
3883         (cgraph_finalize_function): Call it.
3884         (cgraph_finalize_compilation_unit): Likewise.
3885         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
3886         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
3887         (BT_FN_UINT_UINT): New.
3888         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
3889         DEF_FUNCTION_TYPE_VAR_4): Document.
3890         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
3891         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
3892         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
3893         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
3894         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
3895         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
3896         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
3897         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
3898         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
3899         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
3900         into separate files.
3901         (DEF_GOMP_BUILTIN): New.
3902         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
3903         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
3904         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
3905         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
3906         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
3907         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
3908         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
3909         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
3910         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
3911         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
3912         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
3913         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
3914         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
3915         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
3916         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
3917         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
3918         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
3919         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
3920         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
3921         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
3922         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
3923         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
3924         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
3925         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
3926         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
3927         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
3928         * sync-builtins.def: New file, moved from builtins.def.
3929         * omp-builtins.def: New file, moved from builtins.def.
3930         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
3931         * gimple-low.c (lower_function_body): Clear data.
3932         (lower_stmt): Do not handle COMPOUND_EXPR.
3933         Remove call to print_node_brief.
3934         * c-tree.h (c_finish_omp_clauses): New prototype.
3935         (C_DECL_THREADPRIVATE_P): Define.
3936         (lookup_name_no_remap, c_omp_remap_private): Remove
3937         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
3938         (check_for_loop_decls): Update decl.
3939         (lookup_name_no_remap, c_omp_remap_private): Declare.
3940         (build_indirect_ref, build_modify_expr, pushdecl,
3941         pushdecl_top_level): Move to c-common.h.
3942         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
3943         before the switch, but just in the 2 places that need it.
3944         * c-decl.c (diagnose_mismatched_decls): Do not check for
3945         mismatched thread-local attributes when OLDDECL is marked
3946         threadprivate and NEWDECL has no thread-local attributes.