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[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog-2005
1 2005-12-31  Andrew Pinski  <pinskia@physics.uc.edu>
2
3         PR tree-opt/25612
4         * tree-ssa-pre.c (compute_avail): Treat the static chain decl as a
5         parameter and pretend that it is defined in the entry basic block.
6
7 2005-12-30  Kazu Hirata  <kazu@codesourcery.com>
8
9         * tree-outof-ssa.c (_elim_graph): Change the type of STACK to
10         VEC(int,heap).
11         (new_elim_graph, delete_elim_graph, elim_forward,
12         eliminate_phi): Use the VEC API on STACK.
13
14 2005-12-29  Daniel Berlin  <dberlin@dberlin.org>
15
16         * tree.h (VALUE_HANDLE_VUSES): New.
17         (struct tree_value_handle): Add vuses.
18
19         * tree-vn.c (struct val_expr_pair_d): Remove stmt, add vuses.
20         (vn_compute): Remove stmt argument.
21         Don't use vuses in hash value computation.
22         (val_expr_pair_eq): Compare vuse lists.
23         (copy_vuses_from_stmt): New function.
24         (shared_vuses_from_stmt): Ditto.
25         (vn_add): Rewrite in terms of vn_add_with_vuses.
26         (vn_add_with_vuses): New function.
27         (vn_lookup): Rewrite in terms of vn_lookup_with_vuses.
28         (vn_lookup_with_vuses): New function.
29         (vuses_compare): New function.
30         (print_creation_to_file): Ditto.
31         (vn_lookup_or_add): Rewrite to handle vuses.
32         (sort_vuses): New function.
33         (vn_lookup_or_add_with_vuses): Ditto.
34         (vn_init): Initialize shared_lookup_vuses.
35         (vn_delete): Free shared_lookup_vuses.
36
37         * tree-ssa-pre.c: Update todo list.
38         (bb_value_sets_t): Add rvuse_in, rvuse_out, rvuse_gen, and
39         rvuse_kill.
40         (RVUSE_IN): New macro.
41         (RVUSE_GEN): Ditto.
42         (RVUSE_KILL): Ditto.
43         (RVUSE_OUT): Ditto.
44         (modify_expr_node_pool): New function.
45         (pretemp): New.
46         (storetemp): Ditto.
47         (mergephitemp): Ditto.
48         (prephitemp): Ditto.
49         (struct expr_pred_trans_d): Add vuses member.
50         (expr_pred_trans_eq): Compare vuses.
51         (phi_trans_lookup): Add vuses argument.
52         (phi_trans_add): Ditto.
53         (translate_vuses_through_block): New function.
54         (phi_translate): Use vuses to ask about those expressions that can
55         have vuses.
56         Properly translate virtual uses through phis, and use
57         vn_lookup_or_add_with vuses.  Handle tcc_reference.
58         (phi_translate_set): Don't add pointless translations to the
59         cache.
60         (get_representative): New function.
61         (vuses_dies_in_block_x): Ditto.
62         (valid_in_set): Add block argument.  Check virtual use validity.
63         (clean): Add block argument. Update call to valid_in_set
64         (compute_antic_aux): Update call to clean.
65         (dump_bitmap_of_names): New function.
66         (compute_vuse_representatives): Ditto.
67         (compute_rvuse): Ditto.
68         (can_value_number_call): Modified to accept calls with vuses.
69         (can_value_number_operation): New function.
70         (can_PRE_operation): Ditto.
71         (need_creation): New vector of stores that may need creation.
72         (find_or_generate_expression): use can_PRE_operation.
73         (create_expression_by_pieces): Handle INDIRECT_REF.
74         Only create one temp until we have to change types.
75         Mark new vars for renaming.
76         (insert_into_preds_of_block): Ignore loopiness of loads.
77         Use can_PRE_operation.
78         Only create one temp until we have to chnge types.
79         (insert_aux): Use can_PRE_operation.
80         Don't pass name to insert_into_preds_of_block.
81         (insert_extra_phis): Only use one temp until we have to change
82         types.
83         (poolify_tree): New function.
84         (modify_expr_template): New var.
85         (poolify_modify_expr): New function.
86         (insert_fake_stores): Ditto.
87         (realify_fake_stores): Ditto.
88         (compute_avail): Use can_value_number_operation.
89         (mark_operand_necessary): Return NULL for non-SSA names.
90         (remove_dead_inserted_code): Update comment.
91         (init_pre): Initialize pretemp, need_creation, storetemp,
92         mergephitemp, prephitemp.
93         Create modify_expr_node_pool.
94         (fini_pre): Free modify_expr_node_pool and need_creation array.
95         (execute_pre): Call insert_fake_stores, compute_rvuse, and
96         realify_fake_stores. 
97         * tree-flow.h (vn_compute): Fix prototype.
98         (vn_add): Ditto.
99         (vn_lookup): Ditto.
100         (sort_vuses): New.
101         (vn_lookup_or_add_with_vuses): Ditto.
102         (vn_add_with_vuses): Ditto.
103         (vn_lookup_with_vuses): Ditto.
104         * passes.c (pass_may_alias): Add.
105
106 2005-12-30  Gabriel Dos Reis  <gdr@integrable-solutions.net>
107
108         * c-pretty-print.h (struct c_pretty_print_info): Add new member
109         "constant". 
110         (pp_constant): New macro.
111         * c-pretty-print.c (pp_c_pretty_printer_init): Set pp->constant.
112
113 2005-12-30  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
114
115         PR fortran/25586
116         * pa.md: Remove REG_POINTER check from REG+REG peephole2 floating-point
117         store patterns.
118
119 2005-12-29  Mike Stump  <mrs@apple.com>
120
121         * doc/invoke.texi (Objective-C and Objective-C++ Dialect Options
122         -fobjc-exceptions): Don't imply this doesn't work with the GNU
123         runtime.
124
125 2005-12-29  Nathan Sidwell  <nathan@codesourcery.com>
126
127         * varasm.c (get_section): Use gcc_assert.
128
129 2005-12-29  Paul Brook  <paul@codesourcery.com>
130
131         * config/m68k/m68k.h (RETURN_ADDR_RTX): Define.
132         * config/m68k/m68k.c (m68k_initial_elimination_offset): Remove FIXME.
133         Include offset due to FIRST_PARM_OFFSET.
134
135 2005-12-29  Paul Brook  <paul@codesourcery.com>
136
137         * config/m68k/lb1sf68.asm (__cmpdf2): Fix typo in immediate mask.
138         Create wrapper and rename body...
139         (__cmpdf2_internal): ... to this.  Return correct value for unordered
140         result.
141         (__cmpsf2): Create wrapper and rename body...
142         (__cmpsf2_internal): ... to this.  Return corerct value for unordered
143         result.
144         (__eqdf2, __nedf2, __gtdf2, __gedf2, __ltdf2, __ledf2): Use
145         __cmpdf2_internal.
146         (__eqsf2, __nesf2, __gtsf2, __gesf2, __ltsf2, __lesf2): Use
147         __cmpsf2_internal.
148
149 2005-12-29  Paul Brook  <paul@codesourcery.com>
150
151         * config/m68k/fpgnulib.c (__extendsfdf2): Handle negative zero.
152         (__truncdfsf2): Ditto.
153         (__extenddfxf2): Ditto.
154         (__truncxfdf2): Ditto.
155         * config/m68k/lb1sf68.asm (__addsf3): Return -0.0 for -0.0 + -0.0.
156         (__adddf3): Ditto.
157
158 2005-12-29  Daniel Jacobowitz  <dan@codesourcery.com>
159         Paul Brook  <paul@codesourcery.com>
160
161         * config/m68k/m68k.c (m68k_output_pic_call): Don't use bsr.l for
162         !TARGET_68020.
163         * config/m68k/t-m68kelf (EXTRA_PARTS): Remove.
164         (EXTRA_MULTILIB_PARTS): Set.
165         * config/m68k/t-uclinux (EXTRA_PARTS): Remove.
166         (EXTRA_MULTILIB_PARTS): Set.
167
168 2005-12-29  Alan Modra  <amodra@bigpond.net.au>
169
170         PR target/25572
171         * config/rs6000/rs6000.c (create_TOC_reference): Set regs_ever_live.
172
173 2005-12-28  Nathan Sidwell  <nathan@codesourcery.com>
174
175         * config.gcc (mt-*-*): Add --with-arch support.
176         (--with): Print accepted options on error.
177         * config/mt/mt.h (OPTION_DEFAULT_SPECS): Define.
178
179         * config/mt/mt.c (DEF_VEC_P(basic_block),
180         DEF_VEC_ALLOC_P(basic_bloc,heap)): Remove from here.
181
182 2005-12-28  Daniel Berlin  <dberlin@dberlin.org>
183
184         Fix PR tree-optimization/25394
185         * fold-const.c (fold_checksum_tree): Guard 
186         portions of checksumming with correct structure checks.
187
188 2005-12-27  Kazu Hirata  <kazu@codesourcery.com>
189
190         * global.c, tree-ssa-pre.c: Move DEF_VEC_P(basic_block) and
191         DEF_VEC_ALLOC_P(basic_block,{gc,heap}) to ...
192         * basic-block.h: ... here.
193
194 2005-12-27  Roger Sayle  <roger@eyesopen.com>
195
196         * fold-const.c (int_const_binop): Return NULL_TREE when an expression
197         can't be evaluated at compile-time (instead of calling abort).
198         Return NULL_TREE for division (and modulus) by zero.
199         (const_binop):  Return NULL_TREE for floating point operators that
200         aren't handled by real_arithmetic.
201         (fold_binary):  Eliminate "wins" variable, and "binary" label, by
202         folding operators with constant operands early.  Assert that
203         operands are non-NULL.
204
205 2005-12-27  Kazu Hirata  <kazu@codesourcery.com>
206
207         * tree-vrp.c (extract_range_from_binary_expr): Use
208         build_int_cst instead of fold_convert.
209
210 2005-12-26  Mark Mitchell  <mark@codesourcery.com>
211
212         PR c++/23171, c++/23172, c++/25417.
213         * c-decl.c (compound_literal_number): Remove.
214         (build_compound_literal): Use set_compound_literal_name.
215         * c-common.c (compound_literal_number): New variable.
216         (set_compound_literal_name): New function.
217         * c-common.h (set_compound_literal_name): Declare.
218         
219 2005-12-26  Kazu Hirata  <kazu@codesourcery.com>
220
221         PR tree-optimization/25125
222         * convert.c (convert_to_integer): Don't narrow the type of a
223         PLUX_EXPR or MINUS_EXPR if !flag_wrapv and the unwidened type
224         is signed.
225
226 2005-12-26  Graham Stott  <graham.stott@btinternet.com>
227
228         PR middle-end/25568
229         * combine.c (simplify_shift_const_1 <case PLUS>):Fix enable-checking
230         rtl bootstrap failure.
231
232 2005-12-25  Kazu Hirata  <kazu@codesourcery.com>
233
234         * final.c (compute_alignments): Make it static.
235         * gcse.c (gcse_main, bypass_jumps): Likewise.
236         * web.c (web_main): Likewise.
237         * output.h: Remove the prototype for compute_alignments.
238         * rtl.h: Remove the prototypes for web_main, gcse_main, and
239         bypass_jumps.
240
241 2005-12-24  Roger Sayle  <roger@eyesopen.com>
242
243         * expr.c (force_operand): Use expand_fix and expand_float to
244         implement integer <-> FP conversions instead of convert_to_mode.
245
246 2005-12-24  Mark Mitchell  <mark@codesourcery.com>
247
248         PR c++/23171
249         * varasm.c (initializer_constant_valid_p): An ADDR_EXPR of a
250         CONSTRUCTOR is invalid.
251
252 2005-12-23  Daniel Berlin  <dberlin@dberlin.org>
253
254         * tree-pass.h (pass_eliminate_useless_stores): Remove.
255         * tree-ssa-pre.c (is_copy_stmt): Ditto.
256         (follow_copies_till_vuse): Ditto.
257         (do_eustore): Ditto.
258         (gate_eustores): Ditto.
259         (pass_eliminate_useless_stores): Ditto.
260         * passes.c (init_optimization_passes): Ditto.
261
262 2005-12-23  Paolo Bonzini  <bonzini@gnu.org>
263
264         * combine.c (simplify_shift_const): Fix typo.  Use, whenever
265         applicable, simplify_const_binary_operation.
266
267         (simplify_shift_const): Leave only the fallback
268         case when no simplification is possible.  Extract to...
269         (simplify_shift_const_1): ... here.  Always create a new
270         RTX instead of substituting.  Remove the signed_count variable.
271         Return NULL_RTX if no substitution is possible.
272
273         (simplify_and_const_int): Leave only the fallback
274         case when no simplification is possible.  Extract to...
275         (simplify_and_const_int_1): ... here.  Always create a new
276         RTX instead of substituting.  Return NULL_RTX if no substitution
277         is possible.
278
279         (force_to_mode, simplify_comparison): Don't pass a non-NULL first
280         parameter to simplify_and_const_int and simplify_shift_const,
281         unless it is equal to the expected non-simplified result.
282
283 2005-12-23  Jakub Jelinek  <jakub@redhat.com>
284
285         PR target/25005
286         * regrename.c (replace_oldest_value_reg): Use validate_change with
287         IN_GROUP set to 1 instead of doing direct modifications.
288         (copyprop_hardreg_forward_1): Likewise.  If any replace_oldest_*
289         replacements have been performed on an instruction, use
290         apply_change_group ().
291
292 2005-12-23  Hans-Peter Nilsson  <hp@axis.com>
293
294         * config/cris/arit.c (do_31div): Clarify what "31" refers to.
295         [L_divsi3] (__Udiv): Don't use as inline function.
296         [L_modsi3] (__Umod): Ditto.
297         (__Div): Rearrange to call do_31div directly instead of __Udiv.
298         (__Mod): Similarly regarding __Umod.
299
300         PR target/24342
301         * config/cris/cris.c (cris_split_movdx): Add REG_INC notes for
302         emitted insns with post-increments.
303         (cris_expand_epilogue): Ditto.
304
305 2005-12-22  Jakub Jelinek  <jakub@redhat.com>
306             Richard Henderson  <rth@redhat.com>
307
308         Merge from gomp-branch.
309         * builtins.def: Move all DEF_SYNC_BUILTIN to ...
310         * sync-builtins.def: ... new file.
311         (BUILT_IN_FETCH_AND_ADD_16,
312         BUILT_IN_FETCH_AND_SUB_16, BUILT_IN_FETCH_AND_OR_16,
313         BUILT_IN_FETCH_AND_AND_16, BUILT_IN_FETCH_AND_XOR_16,
314         BUILT_IN_FETCH_AND_NAND_16, BUILT_IN_ADD_AND_FETCH_16,
315         BUILT_IN_SUB_AND_FETCH_16, BUILT_IN_OR_AND_FETCH_16,
316         BUILT_IN_AND_AND_FETCH_16, BUILT_IN_XOR_AND_FETCH_16,
317         BUILT_IN_NAND_AND_FETCH_16, BUILT_IN_BOOL_COMPARE_AND_SWAP_16,
318         BUILT_IN_VAL_COMPARE_AND_SWAP_16, BUILT_IN_LOCK_TEST_AND_SET_16,
319         BUILT_IN_LOCK_RELEASE_16): New builtins.
320         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
321         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
322         * builtins.c (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
323         * c-common.c (enum c_builtin_type): Move to top-level from
324         c_common_nodes_and_builtins enum builtin_type.
325         (builtin_types): Move from c_common_nodes_and_builtins.
326         (def_fn_type): New.
327         (c_common_nodes_and_builtins): Use it.
328         (def_builtin_1): Check for error_mark_node.
329         (sync_resolve_size): Handle also 128 bit sync builtins.
330         * Makefile.in (BUILTINS_DEF): New.  Use it instead of builtins.def.
331
332         * config/i386/i386.h (x86_cmpxchg8b, x86_cmpxchg16b): New decls.
333         (TARGET_CMPXCHG8B, TARGET_CMPXCHG16B): Define.
334         * config/i386/i386.c (x86_cmpxchg8b, x86_cmpxchg16b): New variables.
335         * config/i386/sync.md (CASMODE, DCASMODE): New mode macros.
336         (doublemodesuffix, DCASHMODE): New mode attrs.
337         (sync_compare_and_swap<mode>): Change into expand, use CASMODE
338         instead of IMODE, if mode is wider than a word, expand into
339         sync_double_compare_and_swap*.
340         (*sync_compare_and_swap<mode>): New insn.
341         (sync_double_compare_and_swap<mode>): Likewise.
342         (*sync_double_compare_and_swapdi_pic): Likewise.
343         (sync_compare_and_swap_cc<mode>): Use CASMODE instead of IMODE, if
344         mode is wider than a word, expand into
345         sync_double_compare_and_swap_cc*.
346         (sync_double_compare_and_swap_cc<mode>): New insn.
347         (*sync_double_compare_and_swap_ccdi_pic): Likewise.
348
349 2005-12-22  Richard Henderson  <rth@redhat.com>
350
351         * config/i386/mmintrin.h (_mm_add_si64): Only define for SSE2.
352         (_mm_sub_si64): Likewise.
353         * config/i386/xmmintrin.h (_mm_shuffle_pi16, _m_pshufw): Likewise.
354
355 2005-12-23  Alan Modra  <amodra@bigpond.net.au>
356
357         PR rtl-optimization/25432
358         * reload1.c (eliminate_regs_in_insn): Update insn code on
359         successfully re-recognizing modified insn.
360
361 2005-12-22  Richard Guenther  <rguenther@suse.de>
362
363         * tree.c (tree_fold_gcd): Use build_int_cst where appropriate.
364         * tree-ssa-loop-ivcanon.c (create_canonical_iv): Likewise.
365         * varasm.c (array_size_for_constructor): Likewise.
366         * fold-const.c (size_diffop, invert_truthvalue,
367         optimize_bit_field_compare, make_range, build_range_check,
368         fold_cond_expr_with_comparison, fold_truthop,
369         fold_single_bit_test_into_sign_test, fold_binary): Likewise.
370
371 2005-12-22  Dale Johannesen  <dalej@apple.com>
372
373         * config/i386/sse.md (sse_movhlps):  Reverse operands for
374         2nd and 3rd alternatives.
375
376 2005-12-22  Andrew Pinski <pinskia@physics.uc.edu>
377
378         PR tree-opt/25513
379         * tree-dfa.c (make_rename_temp): Set DECL_COMPLEX_GIMPLE_REG_P complex
380         variables.
381
382 2005-12-22  Zdenek Dvorak <dvorakz@suse.cz>
383             Steven Bosscher <stevenb@suse.de>
384
385         * df.c (df_bitmaps_free): Only work for bbs for that structures are
386         allocated.
387         (df_bb_modify): Realloc tables to the new index.
388         (df_find_use): New function.
389         (df_find_def, df_reg_used): Handle subregs.
390         * df.h (df_find_use): Declare.
391
392         * loop-invariant.c: Include hashtab.h.
393         (struct invariant): Remove processed field, add eqto and reg fields.
394         (struct invariant_expr_entry): New.
395         (invariant_for_use, hash_invariant_expr_1, invariant_expr_equal_p,
396         hash_invariant_expr, eq_invariant_expr, find_or_insert_inv,
397         find_identical_invariants, merge_identical_invariants): New functions.
398         (create_new_invariant): Return the new invariant.  Initialize new
399         fields.
400         (find_invariants): Call merge_identical_invariants.
401         (get_inv_cost, best_gain_for_invariant, set_move_mark,
402         move_invariant_reg): Handle equivalent invariants.
403         * Makefile.in (loop-invariant.o): Add HASHTAB_H dependency.
404
405 2005-12-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
406
407         PR c++/23333
408         * c-lex.c (c_lex_with_flags): Add PURE_ZERO to cpp_flags if
409         number is a single digit '0'.
410
411 2005-12-22  Kazu Hirata  <kazu@codesourcery.com>
412
413         PR tree-optimization/23518
414         * fold-const.c (make_range): Don't move a constant to the
415         other side of the comparison if the type is signed and -fwrapv
416         is given.
417
418 2005-12-22  Kazu Hirata  <kazu@codesourcery.com>
419
420         * tree-vrp.c (extract_range_from_binary_expr): Clean up uses
421         of vr0.type.
422
423 2005-12-21  Joseph S. Myers  <joseph@codesourcery.com>
424
425         PR middle-end/24998
426         * config/arm/t-arm-elf (LIB1ASMFUNCS): Add _floatundidf and
427         _floatundisf.
428
429 2005-12-21  Andrew Haley  <aph@redhat.com>
430
431         PR middle-end/25121
432         * recog.c (peephole2_optimize): Don't peephole any
433         RTX_FRAME_RELATED_P insns.
434
435 2005-12-21  Kazu Hirata  <kazu@codesourcery.com>
436
437         * tree-data-ref.c (estimate_niter_from_size_of_data): Replace
438         fold_build2 with fold_binary.
439         * tree-ssa-ccp.c (visit_assignment, maybe_fold_stmt_addition):
440         Replace fold_build1 with fold_unary.
441         * tree-ssa-reassoc.c (optimize_ops_list): Replace fold_build2
442         with fold_binary.
443
444 2005-12-21  Steven Bosscher  <stevenb@suse.de>
445
446         PR rtl-optimization/25196
447         * postreload-gcse.c (record_last_set_info): Notice stack pointer
448         changes in push insns without REG_INC notes.
449
450 2005-12-21  Kazu Hirata  <kazu@codesourcery.com>
451
452         PR tree-optimization/25382.
453         * tree-vrp.c (extract_range_from_binary_expr): Extract a range
454         from BIT_AND_EXPR.
455
456 2005-12-21  Janis Johnson  <janis187@us.ibm.com>
457             Ben Elliston  <bje@au.ibm.com>
458
459         * configure.ac: Enable C extension for decimal float if invoked
460         with --enable-decimal-float.
461         * doc/install.texi (Configuration): Document it.
462         * configure, config.in: Regenerate.
463
464 2005-12-20  Mike Stump  <mrs@apple.com>
465
466         * config/darwin.h (TARGET_OPTION_TRANSLATE_TABLE): Handle the
467         ambiguity between -seg_addr_table and -seg_addr_table_filename.
468         (WORD_SWITCH_TAKES_ARG): Likewise.
469         (LINK_SPEC): Likewise.
470
471 2005-12-20  Kenneth Zadeck <zadeck@naturalbridge.com>
472
473         * cfganal.c (flow_reverse_top_sort_order_compute):
474         Renamed to post_order_compute and additional parameter added which
475         allows the inclusion of entry and exit blocks into list.
476         (mark_dfs_back_edges): Fixed comment.
477         (flow_depth_first_order_compute): Renamed to
478         pre_and_rev_post_order_compute additional parameter added which
479         allows the inclusion of entry and exit blocks into list.
480         * global.c (set_up_bb_rts_numbers): Call to
481         flow_reverse_top_sort_order_compute renamed to
482         post_order_compute.
483         * var-tracking.c (vt_stack_adjustments): Fixed comment.
484         (vt_find_locations): Call to
485         flow_depth_first_order_compute renamed to
486         pre_and_rev_post_order_compute.
487         * cfgloop.c (flow_find_loops): Ditto.
488         * tree-ssa-reassoc.c (init_reassoc): Ditto.
489         * df.c (df_analyze_1, df_analyze_subcfg): Calls to
490         flow_reverse_top_sort_order_compute renamed to post_order_compute
491         and calls to flow_reverse_top_sort_order_compute renamed to
492         post_order_compute.
493         * basic_block.h: Ditto.
494
495
496 2005-12-20  Roger Sayle  <roger@eyesopen.com>
497             Paolo Bonzini  <bonzini@gnu.org>
498
499         PR rtl-optimization/25115
500         * gcse.c (pre_insert_copy_insn): Fall back to the sole
501         SET in the insn if there is no SET for an
502         expression that is equivalent to EXPR.
503
504 2005-12-20  Richard Guenther  <rguenther@suse.de>
505
506         PR middle-end/24306
507         * builtins.c (std_gimplify_va_arg_expr): Do not align
508         va frame for zero sized types.
509         * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
510
511 2005-12-20  Kazu Hirata  <kazu@codesourcery.com>
512
513         PR tree-optimization/25501
514         * tree-cfgcleanup.c (merge_phi_nodes): Check that RESULT is
515         used in the PHI argument corresponding to the edge from BB to
516         DEST.
517
518 2005-12-20  Richard Guenther  <rguenther@suse.de>
519
520         Revert
521         2005-12-02  Richard Guenther  <rguenther@suse.de>
522
523         * tree-cfg.c (mark_used_vars): New function.
524         (dump_function_to_file): Dump only used VAR_DECLs.
525
526 2005-12-19  Roger Sayle  <roger@eyesopen.com>
527
528         * combine.c (try_combine): Improve splitting of binary operators
529         by taking advantage of reassociative transformations.
530
531 2005-12-19  Jeff Law  <law@redhat.com>
532
533         * tree-ssa-dom.c (thread_across_edge): Do not use local_fold.
534         Strip away all type conversions after simplifying the
535         condition.
536
537         * tree-cfgcleanup.c (merge_phi_nodes): Allow merging in some
538         cases the forwarder block dominates the destination.
539
540 2005-12-19  DJ Delorie  <dj@redhat.com>
541
542         * reload1.c (spill_failure): Dump reload data to dump file.
543         (find_reload_regs): Likewise.
544
545 2005-12-19  Zdenek Dvorak <dvorakz@suse.cz>
546
547         PR tree-optimization/24793
548         * tree-ssa-loop-ivopts.c (get_ref_tag): Remember the
549         original reference if there are subvars.
550         * tree-ssa-operands.c (get_tmr_operands): Handle subvars.
551
552 2005-12-19  Kenneth Zadeck <zadeck@naturalbridge.com>
553
554         * df.c (df_analyze_1, df_analyze_subcfg, iterative_dataflow):
555         Corrected basic block number calculations for changes in entry and
556         exit numbering.
557         
558 2005-12-19  Zdenek Dvorak <dvorakz@suse.cz>
559
560         * tree-flow.h (struct var_ann_d): Change type of
561         may_aliases field to VEC(tree, gc) *.
562         (may_aliases): Declaration changed.
563         * tree-ssa-alias.c (group_aliases, add_may_alias,
564         replace_may_alias, dump_may_aliases_for,
565         is_aliased_with, add_type_alias, new_type_alias):
566         Work with VEC(tree, gc) * instead of varray.
567         * tree-flow-inline.h (may_aliases): Ditto.
568         * tree-ssa.c (verify_flow_insensitive_alias_info,
569         verify_name_tags): Ditto.
570         * tree-ssa-operands.c (add_stmt_operand): Ditto.
571
572 2005-12-19  J"orn Rennecke <joern.rennecke@st.com>
573
574         * cfgcleanup.c: Temporarily revert patches for PR 20070 till Bernd
575         comes back.
576
577 2005-12-19  J"orn Rennecke <joern.rennecke@st.com>
578
579         * struct-equiv.c (struct_equiv_improve_checkpoint): Fix sets_cc0_p
580         check.
581
582 2005-12-19  Ben Elliston  <bje@au.ibm.com>
583
584         * doc/install.texi (Configuration): Typo in Fortran subheading.
585
586 2005-12-19  Nathan Sidwell  <nathan@codesourcery.com>
587
588         * config/mt/mt.md (decrement_and_branch_until_zero): Add another
589         scratch.  Correct its reload split. Adjust its peephole.
590         (doloop_end): Add additional scratch.
591         (nop): Use 'nop'.
592         * config/mt/mt.c (MT_INT_ARG_FIRST): Remove.
593         (mt_asm_output_opcode, mt_print_operand): Use 'nop'.
594         (mt_function_arg_slotno): Use FIRST_ARG_REGNUM.
595         (mt_builtin_saveregs): Replace with ...
596         (mt_setup_incoming_varargs): ... here.  Save just the varadic
597         args.
598         (mt_va_start): Remove.
599         (mt_reorg_hazard): Ignore USE insns.  Don't call set_noop_p.
600         (mt_machine_reorg): Split all insns here.
601         (TARGET_SETUP_INCOMING_VARARGS): Override.
602         * config/mt/mt.h (TARGET_CPU_CPP_BUILTINS): Define __mt__ only.
603         Set to CPU type.
604         (EXPAND_BUILTIN_VA_START): Remove.
605
606 2005-12-17  Kenneth Zadeck <zadeck@naturalbridge.com>
607
608         * flow.c (update_life_info, count_or_remove_death_notes): Fixed
609         latent bug that could happen if update_life_info was called with a
610         blocks parameter and the call to cleanup_cfg actually deleted one
611         of those blocks. 
612
613 2005-12-19  Zdenek Dvorak <dvorakz@suse.cz>
614
615         * tree-ssa-structalias.c (update_alias_info): Remove handling
616         of may_be_aliased (SSA_NAME_VAR (op)) case.
617
618 2005-12-19  Zdenek Dvorak <dvorakz@suse.cz>
619
620         * tree-flow.h (struct stmt_ann_d): Remove
621         makes_aliased_loads and makes_aliased_stores fields.
622         * tree-ssa-ccp.c (likely_value): Do not use makes_aliased_stores
623         and makes_aliased_loads fields.
624         * tree-ssa-dom.c (eliminate_redundant_computations): Do not
625         use makes_aliased_stores.
626         * tree-ssa-operands.c (clobbered_aliased_loads,
627         clobbered_aliased_stores, ro_call_aliased_loads): Removed.
628         (build_ssa_operands, add_stmt_operand, add_call_clobber_ops,
629         add_call_read_ops): Do not set makes_aliased_stores and
630         makes_aliased_loads fields.
631         * tree-ssa.c (verify_ssa): Do not verify makes_aliased_stores
632         field.
633
634 2005-12-18  Geoffrey Keating  <geoffk@apple.com>
635
636         * config/darwin.h: Don't include darwin-sections.def to declare
637         global variables; instead create darwin_section_enum.
638         (darwin_section_enum): New.
639         (darwin_sections): New.
640         * config/darwin.c: Don't include darwin-sections.def to define
641         global variables.
642         (darwin_sections): New.
643         (output_objc_section_asm_op): Rewrite to take advantage of
644         darwin_sections.
645         (darwin_init_sections): Rewrite to use darwin_sections.
646         (machopic_output_indirection): Update for darwin_sections array.
647         (machopic_select_section): Likewise.
648         (machopic_select_rtx_section): Likewise.
649         (machopic_asm_out_constructor): Likewise.
650         (machopic_asm_out_destructor): Likewise.
651         (darwin_file_end): Likewise.
652         * config/rs6000/rs6000.c (machopic_output_stub): Likewise.
653         * config/i386/i386.c (machopic_output_stub): Likewise.
654
655 2005-12-18  Richard Guenther  <rguenther@suse.de>
656
657         PR tree-optimization/25481
658         * tree-ssa-structalias.c (handle_ptr_arith): Handle accesses we
659         don't have a varinfo for.
660
661 2005-12-18  Jon Grimm  <jgrimm2@us.ibm.com>
662             Janis Johnson  <janis187@us.ibm.com>
663             Ben Elliston  <bje@au.ibm.com>
664
665         * optabs.c (init_floating_libfuncs): Handle decimal float modes.
666         (init_optabs): Handle libfuncs for decimal float.
667         * genopinit.c (gen_insn): Handle MODE_DECIMAL_FLOAT.
668         * stor-layout.c (int_mode_for_mode): Likewise.
669         * simplify-rtx.c (simplify_immed_subreg): Likewise.
670         (simplify_unary_operation_1): Skip optimisations for decimal float
671         modes.
672         * varasm.c (output_constant_pool_2): Handle MODE_DECIMAL_FLOAT.
673         * emit-rtl.c (gen_const_vector): Add assertion check.
674         (init_emit_once): Populate const_tiny_rtx with constants in each
675         decimal float mode.
676         * expmed.c (extract_high_half, expand_mult_highpart_optab,
677         expand_mult_highpart): Assert that mode is not a scalar float
678         mode.
679         * expr.c (convert_move): Handle conversion between decimal and
680         binary floats of the same size.
681         * convert.c (convert_to_real): Consider decimal float types when
682         folding.
683         * dwarf2out.c (base_type_die): Use DW_ATE_decimal_float to
684         describe decimal floating point types.
685         
686 2005-12-18  Ulrich Weigand  <uweigand@de.ibm.com>
687
688         PR rtl-optimization/21041
689         * reload.c (find_reloads_subreg_address): Replace paradoxical
690         subreg of MEM by widened access only if the resulting memory
691         is properly aligned, even on !STRICT_ALIGNMENT targets.
692
693 2005-12-18  Andreas Krebbel  <krebbel1@de.ibm.com>
694
695         * tree-cfg.c (tree_flow_call_edges_add): Check for empty basic blocks.
696
697 2005-12-18  Steven Bosscher  <stevenb@suse.de>
698
699         * gcse.c (gcse_main, bypass_jumps): Fix non-GNU-isms from
700         the 2005-12-17 patch to renumber the entry and exit blocks.
701
702 2005-12-18  Gabriel Dos Reis  <gdr@integrable-solutions.net>
703
704         * doc/objc.texi (Type encoding): Fix typo.
705
706 2005-12-17  Gabriel Dos Reis  <gdr@integrable-solutions.net>
707
708         * tree-tailcall.c (find_tail_calls): Use XNEW.
709         * tree-ssa-dom.c (allocate_edge_info): Use XCNEW.
710         (free_all_edge_infos): Use explicit cast to convert from void *.
711         (vrp_free): Likewise.
712         (dom_opt_finalize_block): Likewise.
713         (record_equivalences_from_incoming_edge): Likewise.
714         (thread_across_edge): Likewise.  Use XCNEWVEC.
715         (record_cond): Use XCNEW.
716         (record_conditions): Use XNEWVEC.
717         (record_edge_info): Use XCNEWVEC.
718         (lookup_avail_expr): Use XNEW.
719         (record_range): Likewise.  Use GGC_NEW.
720         * tree-nested.c (var_map_hash): Use explicit cast to convert from
721         void *.
722         (var_map_eq): Likewise.
723         (lookup_field_for_decl): Likewise.
724         (convert_nonlocal_reference): Likewise.
725         (convert_local_reference): Likewise.
726         (convert_nl_goto_reference): Likewise.
727         (convert_nl_goto_receiver): Likewise.
728         (convert_call_expr): Likewise.
729         (convert_tramp_reference): Likewise.
730         (lookup_tramp_for_decl): Likewise.Use GGC_NEW.
731         (convert_nl_goto_reference): Likewise.
732         (lookup_field_for_decl): Use GGC_NEW.
733         (create_nesting_tree): Use GGC_CNEW.
734         * tree-ssa-phiopt.c (blocks_in_phiopt_order): Use XNEWVEC.
735         * tree-ssa-alias.c (init_alias_info): Use XCNEW.
736         (create_alias_map_for): Likewise.
737         (setup_pointers_and_addressables): Use XCNEWVEC.
738         (get_ptr_info): Use GGC_NEW.
739         (used_part_map_eq): Use explicit cast to convert from void *.
740         (up_lookup): Likewise.
741         (up_insert): Use XNEW.
742         (get_or_create_used_part_for): Use XCNEW.
743         (get_tmt_for): Likewise.
744         * tree-ssa-operands.c (ssa_operand_alloc): Use GGC_NEW.
745         * tree-ssa-pre.c (phi_trans_add): Use XNEW.
746         (bitmap_set_new): Use explicit cast to convert from void *.
747         (set_new): Likewise.
748         (insert_into_set): Likewise.
749         (pool_copy_list): Likewise.
750         (phi_translate): Likewise.
751         (create_value_expr_from): Likewise.
752         (insert_aux): Use XCNEWVEC.
753         (compute_avail): Use XNEWVEC.
754         * tree-ssa-live.c (calculate_live_on_entry): Likewise.
755         (sort_coalesce_list): Likewise.
756         (build_tree_conflict_graph): Use XCNEWVEC.
757         * tree-ssa-dce.c (tree_dce_init): Use XNEWVEC.
758         * tree-ssa-copy.c (init_copy_prop): Likewise.
759         (fini_copy_prop): Likewise.
760         * tree-ssa-uncprop.c (associate_equivalences_with_edges): Use XNEW
761         and XCNEWVEC.
762         (record_equiv): Use XNEW.
763         (uncprop_into_successor_phis): Use explicit cast to convert from
764         void *.
765         (uncprop_initialize_block): Likewise.
766
767 2005-12-18  Dorit Nuzman  <dorit@il.ibm.com>
768
769         PR tree-optimization/24378      
770         * tree-vect-transform.c (vect_transform_loop): Create single-predecessor
771         basic-block after loop-versioning. 
772
773 2005-12-18  Jeff Law  <law@redhat.com>
774
775         * tree-ssa-dom.c (simplify_switch_and_lookup_avail_expr): Code
776         to simplify SWITCH_EXPR_CODE moved from here to ...
777         * tree-ssa-forwprop.c (simplify_switch_expr): Here.
778         (tree-ssa-forward_propagate_single_use_vars): Call
779         simplify_switch_expr when appropriate.
780
781 2005-12-17  Andrew Pinski  <pinskia@physics.uc.edu>
782
783         * doc/objc.texi (Type encoding): Add documentation about encoding
784         complex types and _Bool.
785
786 2005-12-17  Paul Brook  <paul@codesourcery.com>
787
788         * config/m68k/m68k.md (m68k_output_function_prologue): Always call
789         dwarf2out_def_cfa. Only add space for frame pointer to cfa_offset
790         when frame_pointer_needed. 
791
792 2005-12-17  Gabriel Dos Reis  <gdr@integrable-solutions.net>
793
794         * tree-vn.c (vn_add): Use XNEW.
795         * tree-ssa-ccp.c (ccp_initialize): Use XNEWVEC.
796         (ccp_fold): Likewise.
797         (fold_stmt_r): Use explicit cast to convert from void *.
798         * tree-outof-ssa.c (new_temp_expr_table): Use XCNEWVEC.
799         (new_temp_expr_table): Likewise.
800         * gimplify.c (lookup_tmp_var): Use XNEW.
801         (gimplify_asm_expr): Use explcit cast to convert from void *.
802         * tree-into-ssa.c (get_ssa_name_ann): Likewise.
803         (get_def_blocks_for): Use XNEW.
804         (add_to_repl_tbl): Likewise.
805         (mark_def_sites): Use explicit cast to convert from void *.
806         (def_blocks_free): Likewise.
807         (mark_def_sites_initialize_block): Likewise.
808         (update_ssa): Use XNEWVEC.
809         * tree-dfa.c (create_var_ann): Use GGC_NEW.
810         (create_stmt_ann): Likewise.
811         (create_tree_ann): Likewise.
812         (referenced_var_insert): Likewise.
813         (set_default_def): Likewise.
814         (referenced_var_lookup_if_exists): Use explicit cast to convert
815         from void *.
816         (referenced_var_lookup): Likewise.
817         (default_def): Likewise.
818         (set_default_def): Likewise.
819         * tree-cfg.c (create_bb): Likewise.
820         (edge_to_cases_cleanup): Likewise.
821         (verify_node_sharing): Likewise.
822         (record_switch_edge): Use XNEW.
823         (cleanup_dead_labels): Use XCNEWVEC.
824         (tree_duplicate_sese_region): Use XNEWVEC.
825         * tree-scalar-evolution.c (get_instantiated_value): Likewise.
826         * tree-ssa.c (verify_ssa): Use XCNEWVEC.
827         (int_tree_map_eq): Use explicit cast to convert from void *.
828         * libgcov.c (gcov_exit): Use explicit cast to convert from void *.
829         (__gcov_execl): Likewise.
830         (__gcov_execlp): Likewise.
831         (__gcov_execle): Likewise.
832         * tree-eh.c (struct_ptr_eq): Likewise.
833         (struct_ptr_hash): Likewise.
834         (lookup_stmt_eh_region_fn): Likewise.
835         (outside_finally_tree): Likewise.
836         (find_goto_replacement): Likewise.
837         (make_eh_edge): Likewise.
838         (mark_eh_edge): Likewise.
839         (add_stmt_to_eh_region_fn): Use GGC_NEW.
840         (record_in_finally_tree): Use XNEW.
841         (maybe_record_in_goto_queue): Use XRESIZEVEC.
842         (lower_try_finally_copy): Use XCNEWVEC.
843
844 2005-12-17  Gabriel Dos Reis  <gdr@integrable-solutions.net>
845
846         * tree-inline.c (copy_body_r): Use explicit cast when converting
847         from void *.
848         (copy_bb): Likewise.
849         (copy_edges_for_bb): Likewise.
850         (remap_decl_1): Likewise.
851         (estimate_num_insns_1): Likewise.
852         * cgraph.c (hash_node): Use explicit cast when converting from
853         void *.
854         (eq_node): Likewise.
855         (cgraph_create_node): Use GGC_CNEW.
856         (cgraph_create_edge): Use GGC_NEW.
857         (cgraph_remove_node): Use explicit cast when converting from void *.
858         (hash_varpool_node): Likewise.
859         (eq_varpool_node): Likewise.
860         (cgraph_varpool_node): Use GGC_CNEW.
861         * lambda.h (lambda_vector_new): Use GGC_CNEWVEC.
862         * tree-scalar-evolution.c (new_scev_info_str): Use XNEW.
863         (eq_scev_info): Use explicit cast when converting from void *.
864         (find_var_scev_info): Likewise.
865         (set_instantiated_value): Likewise.
866         (gather_stats_on_scev_database_1): Likewise.
867         * cfgloop.h (simple_loop_desc): Use explicit cast when converting
868         from void *.
869         * c-pch.c (c_common_write_pch): Use XNEWVEC.
870         (c_common_read_pch): Likewise.
871         * prefix.c (save_string): Use XNEWVEC.
872         (translate_name): Use explicit cast when converting from void *.
873         * c-ppoutput.c (print_line): Use explicit cast when converting
874         from void *.
875         (pp_dir_change): Likewise.
876         * c-cppbuiltin.c (builtin_define_std): Likewise.
877         (builtin_define_with_value): Likewise.
878         (builtin_define_with_value_n): Likewise.
879         (builtin_define_with_int_value): Likewise.
880         (builtin_define_type_max): Likewise.
881         * c-incpath.c (add_env_var_paths): Use XNEWVEC.
882         (add_path): Use XNEW.
883         * c-format.c (check_format_info_main): Use GGC_NEW.
884         (format_type_warning): Use explicit cast when converting from void *.
885         * c-typeck.c (alloc_tagged_tu_seen_cache): Use XNEW instead of
886         xmalloc. 
887         (start_init): Likewise.
888         * tree-flow-inline.h (first_referenced_var): Use explicit cast
889         when converting from void *.
890         (next_referenced_var): Likewise.
891         * c-pragma.c (push_alignment): Use GGC_NEW instead of ggc_alloc.
892         * gensupport.c (lookup_predicate): Use explicit cast to convert
893         from void *.
894         (init_predicate_table): Use XCNEW instead of xcalloc.
895         * genpreds.c (process_define_predicate): Likewise.
896
897 2005-12-17  Danny Berlin <dberlin@dberlin.org>
898             Kenneth Zadeck <zadeck@naturalbridge.com>
899
900         * basic-block.h: Changed basic block numbering so that the entry
901         block is 0 and the exit block is 1.  Changed insn iterators so
902         that they are tolerant of blocks with no insns.
903         * regrename.c (copyprop_hardreg_forward): Changed basic block
904         numbering so that the entry block is 0 and the exit block is 1.
905         * sched-ebb.c (sehedule_ebbs): Ditto.
906         * tracer.c (branch_ratio_cutoff): Ditto.
907         * cfgloopmanip.c (fix_loop_structure): Ditto.
908         * cfghooks.c (verify_flow_info): Ditto.
909         * cfg.c (compact_blocks): Ditto.
910         * reorg.c (dbr_schedule): Ditto.
911         * flow.c (calculate_global_regs_live, libcall_dead_p): Ditto.
912         * dominance.c (calc_dfs_tree_nonrec, calc_dfs_tree,
913         calculate_dominance_info): Ditto.
914         * cfganal.c (create_edge_list, print_edge_list,
915         flow_depth_first_order_compute, flow_dfs_compute_reverse_init,
916         flow_dfs_compute_reverse_add_bb, flow_dfs_compute_reverse_execute,
917         dfs_enumerate_from): Ditto.
918         * global.c (global_alloc, set_up_bb_rts_numbers): Ditto.
919         * ifcvt.c (find_if_case_2): Ditto.
920         * cfgbuild.c (control_flow_insn_p, count_basic_blocks,
921         find_basic_blocks): Ditto.
922         * predict.c (predict_loops, tree_bb_level_predictions,
923         predict_paths_leading_to, propagate_freq): Ditto.
924         * lcm.c (compute_antinout_edge, compute_laterin,
925         compute_available): Ditto.
926         * function.c (thread_prologue_and_epilogue_insns): Ditto.
927         * gcse.c (gcse_main, bypass_jumps): Ditto.
928         * profile.c (compute_branch_probabilities,
929         compute_value_histograms, branch_prob): Ditto.
930         * tree-flow-inline.h (bsi_start, bsi_after_labels,
931         bsi_last): Ditto.
932         * tree-ssa-phiopt.c (tree_ssa_phiopt,
933         blocks_in_phiopt_order): Ditto.
934         * bt-load.c (compute_defs_uses_and_gen, compute_kill,
935         compute_out, link_btr_uses, migrate_btr_defs): Ditto.
936         * tree-dfa.c (collect_dfa_stats): Ditto.
937         * cfgcleanup.c (try_forward_edges, try_optimize_cfg): Ditto.
938         * cfglayout.c (fixup_reorder_chain): Ditto.
939         * bb-reorder.c (reorder_basic_blocks, duplicate_computed_gotos,
940         partition_hot_cold_basic_blocks): Ditto.
941         * var-tracking.c (vt_find_locations): Ditto.
942         * cfgloop.c (flow_loops_cfg_dump, flow_loops_find, get_loop_body): Ditto.
943         * sched-rgn.c (compute_trg_info, init_regions, schedule_insns): Ditto.
944         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, make_edges
945         label_to_block_fn, print_loop_ir, tree_flow_call_edges_add): Ditto.
946         * tree-ssa-reassoc.c (init_reassoc): Ditto.
947         * cfgrtl.c (entry_of_function, rtl_verify_flow_info,
948         rtl_flow_call_edges_add, rtl_flow_call_edges_add): Ditto.
949         * df.c (df_analyze_1, hybrid_search, iterative_dataflow): Ditto
950         and removed unused reverse orders.
951         * df.h (): Ditto.
952         * combine.c: Fix document typo.
953
954 2005-12-17  Jan Hubicka  <jh@suse.cz>
955
956         * tree-flow-inline.h (set_default_def, default_def): Kill.
957         * tree-dfa.c (default_defs): New global variable.
958         (default_def, set_default_def): New functions.
959         * tree-ssa.c (init_tree_ssa, delete_tree_ssa): Add default_def hash.
960         * tree-flow.h (struct var_ann_d): Kill default_def field.
961         (set_default_def, default_def): Update prototype.
962         (default_defs): Declare.
963
964 2005-12-16  Jeff Law  <law@redhat.com>
965
966         * tree-ssa-dom.c (update_rhs_and_lookup_avail_expr): Kill.
967         (simplify_rhs_and_lookup_avail_expr): Kill.  Remnants moved
968         into tree-ssa-forwprop.c.
969         (eliminate_redundant_computations): Do not call
970         simplify_rhs_and_lookup_avail_expr anymore.
971         * tree-ssa-forwprop.c (simplify_not_neg_expr): New function
972         extracted from remnants of simplify_rhs_and_lookup_avail_expr.
973         (tree_ssa_forward_propagate_single_use_vars): Call
974         simplify_not_neg_expr appropriately.
975
976 2005-12-16  Bernd Trog  <berndtrog@yahoo.com>
977
978         PR target/20016
979         * config/avr/t-avr: Add -Os to TARGET_LIBGCC2_CFLAGS.
980
981 2005-12-17  Kazu Hirata  <kazu@codesourcery.com>
982
983         PR rtl-optimization/25456
984         * struct-equiv.c (struct_equiv_improve_checkpoint): Replace
985         info->x_start with p->x_start.
986
987 2005-12-17  Alan Modra  <amodra@bigpond.net.au>
988
989         * simplify-rtx.c (simplify_binary_operation_1 <IOR>): Correct bug
990         introduced 2005-12-16.
991
992 2005-12-16  Steven Bosscher  <stevenb@suse.de>
993
994         PR rtl-optimization/23837
995         * optabs.c (expand_binop): For a multi-word rotate, never emit
996         a REG_NO_CONFLICT block.
997
998 2005-12-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
999
1000         PR middle-end/25457
1001         * reorg.c (mostly_true_jump): Remove unused variable 'insn'.
1002
1003         PR target/25447
1004         * config/pa/pa.c (pa_scalar_mode_supported_p): Handle
1005         MODE_DECIMAL_FLOAT.
1006
1007 2005-12-16  Steven Bosscher  <stevenb@suse.de>
1008
1009         * loop-invariant.c (move_loop_invariants): Add missing hunk from
1010         the previous patch, to nullify df.
1011
1012 2005-12-16  Steven Bosscher  <stevenb@suse.de>
1013
1014         * reorg.c (mostly_true_jump): Clean up code depending on
1015         LABEL_OUTSIDE_LOOP_P and loop notes.  Remove code doing
1016         poor man's branch prediction, instead rely on REG_BR_PROB
1017         notes to be available.
1018
1019 2005-12-16  Jakub Jelinek  <jakub@redhat.com>
1020
1021         PR rtl-optimization/24899
1022         * loop.c (strength_reduce): Don't reduce giv that is not always
1023         computable and where add_val or mult_val can trap.
1024
1025         * doc/invoke.texi (-fdump-tree-*): Remove note about C/C++ only.
1026
1027 2005-12-16  Nathan Sidwell  <nathan@codesourcery.com>
1028
1029         * config/mt/mt.h (LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Correct
1030         names of ms1-16-002 files.
1031
1032 2005-12-16  Alan Modra  <amodra@bigpond.net.au>
1033
1034         PR driver/20425
1035         * gcc.c (for_each_path): New function.
1036         (add_to_obstack, file_at_path): New functions.
1037         (struct file_at_path_info, struct add_to_obstack_info): New.
1038         (build_search_list): Rewrite using for_each_path.  Constify struct
1039         path_prefix pointer.  Add do_multi param.  Adjust all callers.
1040         (find_a_file): Similarly, but just change existing param to bool.
1041         (putenv_from_prefixes): Add do_multi param, make "paths" const.
1042         (do_spec_path): Delete.
1043         (struct spec_path_info): New.
1044         (spec_path): New function.
1045         (do_spec_1): Use for_each_path for %D and %I.
1046         (find_file): Adjust for find_a_file changes.
1047         (main): Search multilibs for specs.  Print multilib lib path for
1048         -print-search-dirs.  Likewise add multilibs to LIBRARY_PATH_ENV.
1049         (read_specs): Search multilibs for %include and %include_noerr.
1050         (is_directory): Remove second string param.  Change last param
1051         to a bool.  Don't use concat.  Remove SMALL_ARG_MAX test, always
1052         check path is a dir.  Update all callers.
1053         * doc/hostconfig.texi (SMALL_ARG_MAX): Remove mention.
1054         * system.h (SMALL_ARG_MAX): Poison.
1055         * config.gcc: Don't define SMALL_ARG_MAX.
1056         * config.host: Likewise.
1057         * config.build: Likewise.
1058
1059 2005-12-16  Paolo Bonzini  <bonzini@gnu.org>
1060
1061         * combine.c (combine_simplify_rtx <case NOT, NEG, TRUNCATE,
1062         FLOAT_TRUNCATE, FLOAT_EXTEND, PLUS, MINUS, AND, IOR, XOR,
1063         ABS, VEC_SELECT, POPCOUNT, PARITY, FFS, FLOAT>,
1064         simplify_logical): Move simplifications that do not require
1065         additional infrastructure...
1066         * simplify-rtx.c (simplify_unary_operation_1,
1067         simplify_binary_operation_1): ... here.
1068
1069 2005-12-16  Andreas Krebbel  <krebbel1@de.ibm.com>
1070
1071         PR 24823
1072         * flow.c (mark_used_dest_regs): New function.
1073         (mark_used_regs): Call mark_used_dest_regs.
1074
1075 2005-12-16  Jeff Law  <law@redhat.com>
1076
1077         * tree-ssa-dse.c (dse_optimize_stmt): Correctly handle PHI nodes which
1078         represent a use and definition of the same SSA_NAME.
1079
1080 2005-12-16  Jon Grimm  <jgrimm2@us.ibm.com>
1081             Janis Johnson  <janis187@us.ibm.com>
1082             Ben Elliston  <bje@au.ibm.com>
1083
1084         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): New.
1085         (TARGET_INITIALIZER): Add TARGET_DECIMAL_FLOAT_P.
1086         * target.h (struct gcc_target): Add decimal_float_supported_p.
1087         * targhooks.c (default_scalar_mode_supported_p): Handle
1088         MODE_DECIMAL_FLOAT.
1089         * builtins.def: Add new builtins for 32, 64 and 128 bit variants
1090         of inf, nan, finite, isinf and isnan.
1091         * builtin-types.def (BT_DFLOAT32, BT_DFLOAT64, BT_DFLOAT128,
1092         BT_DFLOAT32_PTR, BT_DFLOAT64_PTR, BT_DFLOAT128_PTR,
1093         BT_FN_DFLOAT32, BT_FN_DFLOAT64, BT_FN_DFLOAT128,
1094         BT_FN_INT_DFLOAT32, BT_FN_INT_DFLOAT64, BT_FN_INT_DFLOAT128,
1095         BT_FN_DFLOAT32_CONST_STRING, BT_FN_DFLOAT64_CONST_STRING,
1096         BT_FN_DFLOAT32_CONST_STRING, BT_FN_DFLOAT32_DFLOAT32,
1097         BT_FN_DFLOAT64_DFLOAT64, BT_FN_DFLOAT128_DFLOAT128): New.
1098         * c-decl.c (declspecs_add_type): Verify combos on type qualifiers.
1099         Pedwarn if decimal floating point types are used.  Error if
1100         decimal floating point is not supported by the target.
1101         (finish_declspecs): Return type from DFP typespec_word.
1102         * c-typeck.c (c_common_type): Choose the decimal floating point
1103         type with the greater precision when determining a common type.
1104         (convert_arguments): Warn if there is a mismatch between argument
1105         and prototype for decimal float types.  Warn of conversions with
1106         binary float types and of precision narrowing due to prototype.
1107         * c-parser.c (reswords): Add _Decimal32, _Decimal64, _Decimal128.
1108         (c_token_starts_typename): Handle RID_DFLOAT32/64/128.
1109         (c_token_starts_declspecs): Likewise.
1110         (c_parser_attributes): Likewise.
1111         * c-common.h (enum rid): Add new enumeration values RID_DFLOAT32,
1112         RID_DFLOAT64, RID_DFLOAT128.
1113         (T_D32, TEX_D32, T_D64, TEX_D64, T_D128, TEX_D128): New macros.
1114         * c-common.c (c_common_type_for_mode): Handle decimal float modes.
1115         (shorten_compare): Convert DFP/BFP operands to a common type.
1116         (c_common_modes_and_builtins): Register built-in decimal float
1117         types if the target supports them.
1118         (handle_mode_addtribute): Handle MODE_DECIMAL_FLOAT.
1119         * builtins.c (fold_builtin_1): Handle 32, 64 and 128 bit cases of
1120         inf, nan, finite, isinf and isnan builtins.
1121         * c-cppbuiltin.c (builtin_define_decimal_float_constants): New.
1122         (builtin_define_float_constants): Assert non-decimal radix.
1123         (c_cpp_builtins): Register built-in __DEC_EVAL_METHOD__ define.
1124         Call builtin_define_decimal_float_constants for each type.
1125         * c-lex.c (interpret_float): Decode decimal float types from CPP_N
1126         flags.  Use real_from_string3, which can handle binary or decimal
1127         floats.
1128         * c-tree.h (enum c_typespec_keyword): Add cts_dfloat32,
1129         cts_dfloat64, cts_dfloat128.
1130         * tree.c (build_common_tree_nodes_2): Add decimal float types.
1131         * tree.h (enum tree_index): Add new enumeration values
1132         TI_DFLOAT32_TYPE, TI_DFLOAT64_TYPE, TI_DFLOAT128_TYPE,
1133         TI_DFLOAT32_PTR_TYPE, TI_DFLOAT64_PTR_TYPE, TI_DFLOAT128_PTR_TYPE.
1134         (dfloat32_type_node): New macro.
1135         (dfloat64_type_node, dfloat128_type_node): Likewise.
1136         (dfloat32_ptr_type_node, dfloat64_ptr_type_node): Likewise.
1137         (dfloat128_ptr_type_node): Likewise.
1138         * c-pretty-print.c (pp_c_floating_constant): Append 32, 64 and 128
1139         bit decimal floating point types with "df", "dd" and "dl".
1140         * c-format.h (enum format_lengths): Add new enumeration values
1141         FMT_LEN_H, FMT_LEN_D and FMT_LEN_DD.
1142         * c-format.c (printf_length_specs, scanf_length_specs): Add
1143         entries for H, D, DD.
1144         (print_char_table, scan_char_table): Use new entries.
1145         (asm_fprintf_char_table, gcc_diag_char_table,
1146         gcc_cdiag_char_table, gcc_cxxdiag_char_table): Adjust for longer
1147         length arrays.
1148         * defaults.h (DECIMAL32_TYPE_SIZE): Define.
1149         (DECIMAL64_TYPE_SIZE): Likewise.
1150         (DECIMAL128_TYPE_SIZE): Likewise.
1151         (TARGET_DEC_EVAL_METHOD): Likewise.
1152         * doc/extend.texi (Decimal Float): New node.
1153         (Constructing Calls): Document decimal float built-ins.
1154         * doc/tm.texi: Document TARGET_DECIMAL_FLOAT_SUPPORTED_P hook.
1155         * Makefile.in (USER_H): Add $(srcdir)/ginclude/decfloat.h.
1156         * ginclude/decfloat.h: New file.
1157
1158 2005-12-16  Alan Modra  <amodra@bigpond.net.au>
1159
1160         * reload.c (find_reloads): Fix comment typo.
1161         * recog.h (recog_memoized): Correct comment.
1162
1163 2005-12-16  Kazu Hirata  <kazu@codesourcery.com>
1164
1165         * basic-block.h, config/i386/winnt.c, config/pa/pa.c,
1166         config/s390/s390.c, dfp.c, expr.c, fold-const.c, params.def,
1167         reload.c, struct-equiv.c, tree-ssa-ccp.c, tree-ssa-pre.c,
1168         tree-ssa-reassoc.c, tree-ssa-structalias.c: Fix comment typos.
1169         * doc/invoke.texi, doc/tm.texi: Fix typos.
1170
1171 2005-12-16  Ben Elliston  <bje@au.ibm.com>
1172
1173         * real.c (decimal_quad_format): Correct values for emin, emax.
1174
1175 2005-12-15  DJ Delorie  <dj@redhat.com>
1176
1177         * config/m32c/predicates.md (m32c_psi_scale): New.
1178         * config/m32c/m32c.c (m32c_expand_neg_mulpsi3): New.
1179         * config/m32c/muldiv.md (mulpsi3): Support negative constants.
1180
1181 2005-12-16  Jan Hubicka  <jh@suse.cz>
1182
1183         PR rtl-optimization/25224
1184         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free copy
1185         tables.
1186
1187 2005-12-15  Zdenek Dvorak <dvorakz@suse.cz>
1188             Steven Bosscher <stevenb@suse.de>
1189
1190         * loop-invariant.c (df): New global variable.
1191         (find_defs, check_dependencies, find_invariant_insn, record_uses,
1192         find_invariants_bb, find_invariants_body, find_invariants,
1193         find_invariants_to_move, move_invariants, free_inv_motion_data,
1194         move_single_loop_invariants, move_loop_invariants): Do not pass df in
1195         arguments.
1196
1197 2005-12-15  Jakub Jelinek  <jakub@redhat.com>
1198
1199         * varasm.c (default_unique_section_1): Use special section
1200         names for SECCAT_DATA_REL{,_RO}{,_LOCAL}.
1201
1202 2005-12-16  Ben Elliston  <bje@au.ibm.com>
1203
1204         * doc/invoke.texi (Warning Options): Document -Walways-true being
1205         enabled by -Wall.
1206
1207 2005-12-15  Joseph S. Myers  <joseph@codesourcery.com>
1208
1209         PR other/25028
1210         * libgcc2.h (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Define.
1211         * libgcc2.c (__floatdixf, __floatundixf, __floatditf,
1212         __floatunditf): Use #error if type sizes don't match requirements
1213         of implementation.
1214         (__floatdisf, __floatdidf): Unify.  Possibly use XFmode or TFmode
1215         as wider floating-point type.  Use #error if type sizes don't
1216         match requirements of implementation.  Avoid overflow in computing
1217         Wtype_MAXp1_F * Wtype_MAXp1_F.  When special casing conversion,
1218         shift one more bit.  Cast 1 to DWtype or UDWtype for shifting.
1219         (__floatundisf, __floatundidf): Likewise.
1220         * config/ia64/hpux.h (XF_SIZE, TF_SIZE): Define.
1221         * config/ia64/ia64.c (ia64_init_libfuncs): Use
1222         _U_Qfcnvfxt_quad_to_quad and _U_Qfcnvxf_quad_to_quad for
1223         TFmode-TImode conversions.
1224         * doc/tm.texi (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Document.
1225
1226 2005-12-14  Craig Rodrigues  <rodrigc@gcc.gnu.org>
1227
1228         * freebsd-spec.h (FBSD_TARGET_OS_CPP_BUILTINS):
1229         Use builtin_define_with_int_value() instead of
1230         adding a new check for every new major FreeBSD version.
1231
1232 2005-12-14  Andrew Pinski  <pinskia@physics.uc.edu>
1233
1234         * config/t-darwin (darwin-c.o): Depend on $(TREE_H) instead of tree.h.
1235
1236 2005-12-15  Richard Sandiford  <richard@codesourcery.com>
1237
1238         * config/arm/predicates.md (call_memory_operand): New.
1239         * config/arm/arm.md (*call_mem, *call_value_mem): Use it.
1240
1241 2005-12-15  Andrew Haley  <aph@redhat.com>
1242
1243         * unwind-dw2-fde-glibc.c (_Unwind_IteratePhdrCallback): Guard
1244         against prev_cache_entry == NULL when moving a cache entry to the
1245         head of the list.
1246         
1247 2005-12-15  Nathan Sidwell  <nathan@codesourcery.com>
1248
1249         * config/mt/mt.c (mt_override_options): Require lower case
1250         architectures.  Revert accidental default to ms2.
1251         * config/mt/mt.h (ASM_SPEC, LIBSPEC, STARTFILE_SPEC,
1252         ENDFILE_SPEC): Require lower case architectures.  Revert default
1253         to ms2.
1254
1255         * doc/invoke.texi (MT Options): Rename and update.
1256         * doc/md.texi (MorphoTech family): Rename and update.
1257
1258 2005-12-15  Olivier Hainque  <hainque@adacore.com>
1259
1260         * stor-layout.c (layout_type): Don't complain about a too small
1261         an array element type size compared to its alignment when the
1262         size overflows.
1263
1264 2005-12-15  Jan Hubicka  <jh@suse.cz>
1265
1266         PR target/24969
1267         * i386.c (classify_argument): Properly adjust offset of bitfield for
1268         substructures.
1269
1270 2005-12-15  Richard Sandiford  <richard@codesourcery.com>
1271
1272         * final.c (final_scan_insn): Flip in_cold_section_p when changing
1273         between the hot and cold sections.  Use current_function_section
1274         to get the new section.
1275         * dwarf2out.c (output_line_info): Use in_cold_section_p to
1276         determine whether we are assembling hot or cold code.
1277         (secname_for_decl, dwarf2out_var_location): Likewise.
1278         (dwarf2out_init, dwarf2out_finish): Use switch_to_section.
1279         * varasm.c (last_text_section): Delete.
1280         (in_cold_section_p): New variable.
1281         (hot_function_section): New function.
1282         (current_function_section): Pass in_cold_section_p as the
1283         reloc argument to select_section.  Use it to decide between
1284         unlikely_function_section and hot_function_section.
1285         (assemble_start_function): Use switch_to_section.  Set
1286         in_cold_section_p instead of last_text_section.
1287         (assemble_end_function): Use switch_to_section.
1288         (switch_to_section): Don't set last_text_section.
1289         * config/darwin/darwin.c (machopic_select_section): Trust the reloc
1290         argument to make the right choice between hot and cold sections.
1291
1292 2005-12-15  Nathan Sidwell  <nathan@codesourcery.com>
1293
1294         Second part of MS1->MT renaming
1295         * config/mt/mt.md (doloop_end): Call mt_add_loop.
1296         (movqi, movhi): Call mt_set_memflags.
1297         (*movdf_internal): Call mt_split_words. 
1298         (reload_inqi, reload_outqi, reload_inhi, reload_outhi): Call
1299         mt_set_memflags.
1300         (cmpsi): Store to mt_compare_op[01].
1301         (beq, bne, bge, bgt, ble, blt, bgeu, bgtu, bleu, bltu, bunge,
1302         bungt, bunle, bunlt): Call mt_emit_cbranch.
1303         (prologue): Call mt_expand_prologue.
1304         (epilogu): Call mt_expend_epilogue.
1305         (eh_return): Call mt_expand_eh_return.
1306         (eh_epilogue): Call me_emit_eh_epilogue.
1307         (conditional_trap): Store to mt_compare_op[01].
1308         * config/mt/crti.asm: Adjust comment.
1309         * config/mt/crtn.asm: Adjust comment.
1310         * config/mt/mt.c (MT_INT_ARG_FIRST): Renamed.
1311         (mt_compare_op0, mt_compare_op1): Renamed.
1312         (current_frame_info, zero_frame_info): Adjust type.
1313         (mt_ucmpsi3_libcall): Renamed.
1314         (mt_flag_delayed_branch): Renamed.
1315         (mt_struct_value_rtx, mt_return_addr_rtx): Renamed.
1316         (mt_nops_required, mt_nop_reasons): Renamed.
1317         (mt_asm_output_opcode, mt_get_attr_type, mt_final_prescan_insn,
1318         mt_debug_stack, mt_print_operand_simple_address,
1319         mt_print_operand_address, mt_print_operand): Renamed, adjusted.
1320         (mt_init_cumulative_args, mt_function_arg_slotno, mt_function_arg,
1321         mt_function_arg_advance, mt_arg_partial_bytes,
1322         mt_pass_by_reference, mt_function_arg_boundary,
1323         mt_reg_ok_for_base_p, mt_legitimate_simple_address_p,
1324         mt_legitimate_address_p): Renamed, adjusted.
1325         (mt_cpu): Renamed.
1326         (mt_init_machine_status, mt_override_options, mt_builtin_saveregs,
1327         mt_va_start, mt_compute_frame_size, mt_emit_save_restore,
1328         mt_emit_save_fp, mt_emit_save_regs, mt_interrupt_function_p, 
1329         mt_expand_prologue, mt_epilogue_uses, mt_expand_epilogue,
1330         mt_expand_eh_return, mt_emit_eh_prologue,
1331         mt_handl_interrupt_attribute): Renamed, adjusted.
1332         (mt_attribute_table): Renamed, adjusted.
1333         (mt_initial_elimination_offset, mt_generate_compare,
1334         mt_emit_cbranch, mt_set_memflags_1, mt_set_memflags,
1335         mt_secondary_reload_class, mt_function_value, mt_split_words,
1336         mt_pass_in_stack, mt_add_loop, mt_loop_nesting, mt_block_length,
1337         mt_scan_loop, mt_reorg_loops): Renamed, adjusted.
1338         (mt_labels): Renamed.
1339         (mt_add_branches, mt_check_delay_slot, mt_reorg_hazard,
1340         mt_machine_reorg): Renamed, adjusted.
1341         (mt_attribute_table: Renamed.
1342         (TARGET_ATTRIBUTE_TABLE, TARGET_STRUCT_VALUE_RTX,
1343         TARGET_PASS_BY_REFERENCE, TARGET_MUST_PASS_IN_STACK,
1344         TARGET_ARG_PARTIAL_BYTES, TARGET_MACHINE_DEPENDENT_REORG): Adjust.
1345         * config/mt/mt.opt (march): Set mt_cpu_string.
1346         * config/mt/mt.h (mt_ucmpsi3_libcall, mt_cpu): Renamed.
1347         (TARGET_CPU_CPP_BUILTINS): Adjust.
1348         (TARGET_MS1_64_001, TARGET_MS1_16_002, TARGET_MS1_16_003,
1349         TARGET_MS2): Adjust.
1350         (TARGET_VERSION, OVERRIDE_OPTIONS, SECONDARY_RELOAD_CLASS): Adjust.
1351         (MT_MIN_INT): Renamed.
1352         (RETURN_ADDR_RTX): Adjust.
1353         (struct mt_frame_info): Renamed.
1354         (current_frame_info): Adjust type.
1355         (INITIAL_ELIMINATION_OFFSET): Adjust.
1356         (MT_NUM_ARG_REGS): Renamed.
1357         (REG_PARM_STACK_SPACE, FUNCTION_ARG, INIT_CUMULATVE_ARGS,
1358         FUNCTION_ARG_ADVANCE, FUNCTION_ARG_BOUNDARY, FUNCTION_VALUE,
1359         LIBCALL_VALUE, EPILOGUE_USES, EXPAND_BUILTIN_VA_START,
1360         GO_IF_LEGITIMATE_ADDRESS, REG_OK_FOR_BASE_P, ASM_OUTPUT_OPCODE,
1361         FINAL_REPSCAN_INSN, PRINT_OPERAND, PRINT_OPERAND_ADDRESS): Adjust.
1362         (mt_compare_op0, mt_compare_op1): Renamed.
1363         * config/mt/mt-protos.h: Rename prototypes.
1364
1365 2005-12-15  Richard Guenther  <rguenther@suse.de>
1366
1367         * tree-flow.h (okay_component_ref_for_subvars): Remove.
1368         (get_ref_base_and_extent): Declare.
1369         * tree-dfa.c (okay_component_ref_for_subvars): Remove.
1370         (get_ref_base_and_extent): New function.
1371         * tree-ssa-alias.c (find_used_portions): Use it.
1372         * tree-ssa-structalias.c (get_constraint_for_component_ref):
1373         Likewise.
1374         * tree-ssa-operands.c (get_expr_operands): Likewise.
1375
1376 2005-12-15  Paolo Bonzini  <bonzini@gnu.org>
1377
1378         * combine.c: Remove force_to_mode's fourth parameter.
1379         (force_to_mode): Do not handle REG.
1380         (canon_reg_for_combine): New.
1381         (make_field_assignment): Use it where the removed argument was non-NULL.
1382
1383 2005-12-15  Alan Modra  <amodra@bigpond.net.au>
1384
1385         PR target/25406
1386         * config/rs6000/rs6000.c (rs6000_special_round_type_align): Handle
1387         error_mark_node.  Make alignment params unsigned.
1388         * config/rs6000/rs6000-protos.h
1389         (rs6000_special_round_type_align): Update prototype.
1390         (rs6000_machopic_legitimize_pic_address): Remove arg names.
1391
1392 2005-12-14  Ulrich Weigand  <uweigand@de.ibm.com>
1393
1394         PR rtl-optimization/25310
1395         * reload1.c (eliminate_regs_in_insn): Handle lowpart SUBREGs
1396         of the eliminable register when substituting into a PLUS.
1397
1398 2005-12-14  Jakub Jelinek  <jakub@redhat.com>
1399
1400         PR debug/25023
1401         * config/i386/i386.c (ix86_force_to_memory): Always use
1402         SImode push for HImode in -m32.
1403         (ix86_free_from_memory): Likewise.
1404
1405 2005-12-14  Richard Sandiford  <richard@codesourcery.com>
1406
1407         * gcc/config/arm/arm.md: Provide a big-endian version of the
1408         (zero_extend:SI (subreg:QI ...)) splitter.
1409
1410 2005-12-14  J"orn Rennecke <joern.rennecke@st.com>
1411
1412         * struct-equiv.c (note_local_live): Handle hard regs with different
1413         hard_regno_nregs.
1414
1415 2005-12-14  Jeff Law  <law@redhat.com>
1416
1417         * tree-ssa-ccp.c (fold_stmt_r): DATA argument is now a pointer
1418         to a structure containing state rather than a pointer to bool.
1419         (case ARRAY_REF): New code to handle folding some array references.
1420         (case ADDR_EXPR): Note when we are processing expressions found
1421         within an ADDRE_EXPR.
1422         (fold_stmt, fold_stmt_inplace): Pass in a structure to fold_stmt_r
1423         for state variables rather than just a pointer to a boolean.
1424         * tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Remove
1425         handling of constant string references.
1426
1427 2005-12-14  Adrian Straetling  <straetling@de.ibm.com>
1428
1429         * config/s390/s390.md ("*tstdi_extimm", "*tstsi_extimm"): Merge.
1430         ("*tstdi_cconly_extimm", "*tstsi_cconly_extimm"): Merge.
1431         ("*tstdi_cconly2", "*tstsi_cconly2"): Merge.
1432         Move other tst* patterns to retain partial order.
1433
1434 2005-12-14  Adrian Straetling  <straetling@de.ibm.com>
1435
1436         * config/s390/s390.md ("d0", "1"): New mode attributes.
1437         ("<shift>di3", "<shift>si3"): Merge.
1438         ("*<shift>di3_and", "*<shift>si3_and"): Merge.
1439         ("ashrdi3", "ashrsi3"): Merge.
1440         ("*ashrdi3_cc", "*ashrsi3_cc"): Merge.
1441         ("*ashrdi3_cc_and", "*ashrsi3_cc_and"): Merge.
1442         ("*ashrdi3_cconly", "*ashrsi3_cconly"): Merge.
1443         ("*ashrdi3_cconly_and", "*ashrsi3_cconly_and"): Merge.
1444         ("*ashrdi3", "*ashrsi3"): Merge.
1445         ("*ashrdi3_and", "*ashrsi3_and"): Merge.
1446
1447 2005-12-14  Adrian Straetling  <straetling@de.ibm.com>
1448
1449         * config/s390/s390.md ("extend<mode>di2", "extend<mode>si2"): Merge.
1450         ("*extendqidi2_extimm", "*extendqisi2_extimm"): Merge.
1451         ("*extendqidi2", "*extendqisi2") Merge.
1452         ("*extendqidi2_short_displ", "*extendqisi2_short_displ"): Merge.
1453         ("zero_extendhidi2", "zero_extendqidi2"): Merge.
1454         ("*zero_extend<mode>di2_extimm", "*zero_extend<mode>si2_extimm"): Merge.
1455         Move some patterns to retain partial ordering.
1456
1457 2005-12-14  Adrian Straetling  <straetling@de.ibm.com>
1458
1459         * config/s390/s390.md ("atype", "length"): Rewrite.
1460         ("*insv<mode>_reg_imm", "*insv<mode>_reg_extimm"): Add mode.
1461
1462 2005-12-14  Sebastian Pop  <pop@cri.ensmp.fr>
1463
1464         * tree-ssa-operands.c (build_ssa_operands): Update leading comment.
1465
1466 2005-12-14  J"orn Rennecke <joern.rennecke@st.com>
1467
1468         * struct-equiv.c (rtx_equiv_p): Allow arbitrary RVALUE values for
1469         PARALLELs with a mode.
1470
1471 2005-12-14  Sebastian Pop  <pop@cri.ensmp.fr>
1472
1473         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Adjust the type of
1474         cond_expr parameter.
1475
1476 2005-12-14  Sebastian Pop  <pop@cri.ensmp.fr>
1477
1478         * loop-unswitch.c (unswitch_loop): Free zero_bitmap before returning.
1479
1480 2005-12-14  J"orn Rennecke <joern.rennecke@st.com>
1481
1482         PR bootstrap/25397:
1483
1484         * struct-equiv.c (struct_equiv_init): Fix off-by-one error in clearing
1485         of STACK_REGS bits.
1486
1487         * struct-euiv.c (rtx_equiv_p): Remove SUBREG case.
1488
1489 2005-12-14  Jakub Jelinek  <jakub@redhat.com>
1490
1491         PR target/25254
1492         PR target/24188
1493         * config/i386/i386.c (x86_64_elf_select_section): If DECL is not
1494         DECL_P, call get_section rather than get_named_section.  Supply
1495         section flags to it.
1496
1497 2005-12-14  Ben Elliston  <bje@au.ibm.com>
1498
1499         * c-common.c (c_common_truthvalue_conversion): Generalise warning
1500         for addresses converted to booleans; not just function addresses.
1501         * c-typeck.c (build_binary_op): Warn for address comparisons which
1502         can never be NULL (eg. func == NULL or &var == NULL).
1503         * common.opt (Walways-true): New option.
1504         * c-opts.c (c_common_handle_option): Set it with -Wall.
1505         * doc/invoke.texi: Document it.
1506
1507 2005-12-13  Paul Brook  <paul@codesourcery.com>
1508
1509         * config/m68k/fpgnulib.c (__unordsf2, __unorddf2, __unordxf2,
1510         __floatunsidf, __floatunsisf, __floatunsixf): New functions.
1511
1512 2005-12-13  Nathan Sidwell  <nathan@codesourcery.com>
1513
1514         * config/mt/t-mt (crti.o, crtn.o): Add multilib options.
1515         (EXTRA_MULTILIB_PARTS): Define.
1516
1517 2005-12-13  J"orn Rennecke <joern.rennecke@st.com>
1518
1519         PR rtl-optimization/20070 / part1
1520         * flow.c (update_life_info): If PROP_POST_REGSTACK is set, call
1521         count_or_remove_death_notes with kill == -1.
1522         (mark_set_1): Don't add REG_DEAD / REG_UNUSED notes for stack
1523         registers if PROP_POST_REGSTACK is set.
1524         (mark_used_reg): Likewise.
1525         (count_or_remove_death_notes): If kill is -1, don't remove REG_DEAD /
1526         REG_UNUSED notes for stack regs.
1527         * cfgcleanup.c (condjump_equiv_p): Change parameters and processing
1528         to match rtx_equiv_p machinery.  Change caller.
1529         (outgoing_edges_match): Likewise.
1530         (try_crossjump_to_edge): Use struct_equiv_block_eq
1531         instead of flow_find_cross_jump.
1532         * basic-block.h (PROP_POST_REGSTACK, STRUCT_EQUIV_START): Define.
1533         (STRUCT_EQUIV_RERUN, STRUCT_EQUIV_FINAL): Likewise.
1534         (STRUCT_EQUIV_NEED_FULL_BLOCK, STRUCT_EQUIV_MATCH_JUMPS): Likewise.
1535         (STRUCT_EQUIV_MAX_LOCAL): Likewise.
1536         (struct struct_equiv_checkpoint, struct equiv_info): Likewise.
1537         (insns_match_p): Update prototype.
1538         (flow_find_cross_jump): Remove prototype.
1539         (struct_equiv_block_eq, struct_equiv_init): Declare.
1540         (rtx_equiv_p, condjump_equiv_p): Likewise.
1541         * struct-equiv.c: Include reload.h.
1542         (IMPOSSIBLE_MOVE_FACTOR): Define.
1543         (assign_reg_reg_set, struct_equiv_make_checkpoint): New functions.
1544         (struct_equiv_improve_checkpoint): Likewise.
1545         (struct_equiv_restore_checkpoint, rtx_equiv_p): Likewise.
1546         (set_dest_equiv_p, set_dest_addr_equiv_p, struct_equiv_init): Likewise.
1547         (struct_equiv_merge, find_dying_input): Likewise.
1548         (resolve_input_conflict, note_local_live): Likewise.
1549         (death_notes_match_p): Change parameters and processing
1550         to match rtx_equiv_p machinery.  Change caller.
1551         (insns_match_p): Likewise.
1552         (flow_find_cross_jump): Replace with:
1553         (struct_equiv_block_eq).
1554
1555         Back out this change:
1556         2005-03-07  Kazu Hirata  <kazu@cs.umass.edu>
1557           * recog.c (verify_changes): Make it static.
1558           * recog.h: Remove the corresponding prototype.
1559
1560 2005-12-13  J"orn Rennecke <joern.rennecke@st.com>
1561
1562         * rtlhooks.c (gen_lowpart_general): Handle SUBREGs of floating point
1563         values.
1564
1565 2005-12-13  Nathan Sidwell  <nathan@codesourcery.com>
1566
1567         * config/mt/t-mt (MULTILIB_OPTIONS): Add ms2
1568         (MULTILIB_DIRNAMES): Add ms2.  Prefix ms1 dirs with 'ms1'.
1569         * config/mt/mt.c (ms1_final_prescan): Use TARGET_MS2,
1570         TARGET_MS1_64_001 appropriately.
1571         (ms1_machine_reorg): Use TARGET_MS2.
1572
1573 2005-12-13  Jakub Jelinek  <jakub@redhat.com>
1574
1575         PR debug/25023
1576         PR target/25293
1577         * expr.c (emit_move_resolve_push): Handle PRE_MODIFY
1578         and POST_MODIFY with CONST_INT adjustment equal to PUSH_ROUNDING.
1579         Fix POST_INC/POST_DEC handling if PUSH_ROUNDING is not identity.
1580         * config/i386/i386.md (pushhi2, pushqi2): Use pushl instead of pushw.
1581         Set mode to SI, adjust constraints.
1582         (pushhi2_rex64, pushqi2_rex64): Set mode to DI.
1583         * config/i386/i386.h (PUSH_ROUNDING): Round up to 4 instead of 2 for
1584         32-bit code.
1585
1586 2005-12-13  Carlos O'Donell <carlos@codesourcery.com>
1587
1588         * c-cppbuiltin.c (builtin_define_float_constants): Add
1589         fp_cast parameter, pass to builtin_define_with_hex_fp_value.
1590         Define __FLT_HAS_DENORM__, __DBL_HAS_DENORM__, __LDBL_HAS_DENORM__.
1591         (builtin_define_with_hex_fp_value): Use fp_cast when building macro.
1592         (c_cpp_builtins): If flag_single_precision_constant then set fp_cast
1593         to "((double)%sL)" otherwise "%s".
1594
1595 2005-12-13  Paul Brook  <paul@codesourcery.com>
1596
1597         * config/arm/bpabi.h (SUBTARGET_EXTRA_ASM_SPEC): Pass -meabi=gnu for
1598         apcs/atpcs.
1599
1600 2005-12-11 Rafael vila de Espndola <rafael.espindola@gmail.com>
1601
1602         * tree-flow.h: Allow compilation with a C++ compiler.
1603         (struct edge_prediction): Prefix all field names  with "ep_".
1604         * predict.c (tree_predicted_by_p): Likewise for struct edge_prediction.
1605         (tree_predict_edge, combine_predictions_for_bb): Likewise.
1606         (remove_predictions_associated_with_edge): Likewise.
1607         
1608 2005-12-12  Jeff Law  <law@redhat.com>
1609
1610         * tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Remove
1611         reassociation code.
1612         * passes.c (init_optimization_passes): Run reassociation again
1613         after loop optimizations.
1614
1615 2005-12-12  Daniel Berlin  <dberlin@dberlin.org>
1616
1617         * tree-ssa-dom.c (thread_across_edge): Canonicalize condition
1618         if necessary.
1619         (optimize_stmt): Ditto.
1620         (canonicalize_comparison): New function.
1621         * tree-ssa-operands.c (swap_tree_operands): Make external.
1622         (get_expr_operands): Stop auto-canonicalization.
1623         * tree-ssa-reassoc.c: Rewrite.
1624         (init_optimization_passes): 
1625         * tree-flow.h (swap_tree_operands): Prototype.
1626         * Makefile.in (tree-ssa-reassoc.o): Update dependencies.
1627
1628 2005-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1629
1630         * pa.c (pa_output_function_epilogue): Set cfun->machine->in_nsubspa to
1631         indicate function epilogue has been output.
1632         (pa_asm_output_mi_thunk): Likewise.
1633         (output_deferred_plabels): Put plabels in readonly data section when
1634         not generating PIC code.
1635         (som_output_text_section_asm_op): Use .NSUBSPA to output debug
1636         information.  Add assert.
1637         (som_output_comdat_data_section_asm_op): New function.
1638         (pa_som_asm_init_sections): Use som_output_comdat_data_section_asm_op
1639         instead of output_section_asm_op for COMDAT sections.
1640
1641 2005-12-12  J"orn Rennecke <joern.rennecke@st.com>
1642
1643         * cfgcleanup.c (condjump_equiv_p, try_crossjump_to_edge):
1644         Fix whitespace in vincinity of to-be-installed changes.
1645         * struct-equiv.c (merge_memattrs, death_notes_match_p): Fix whitespace.
1646         (insns_match_p): Likewise.
1647
1648 2005-12-12  Nathan Sidwell  <nathan@codesourcery.com>
1649
1650         * config.gcc (ms1): Replace with ...
1651         (mt): ... this.
1652         * config/ms1: Rename to ...
1653         * config/mt: ... here.  Rename ms1 files to mt.
1654         * config/mt/mt.c: Adjust gt-mt.h #include.
1655         * config/mt/t-mt (LIB1ASMSRCS, LIB2FUNCS_EXTRA): Adjust.
1656         (crti.o, crtn.o): Adjust file names.
1657
1658 2005-12-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1659
1660         * varray.h: Allow compilation with a C++ compiler.
1661         (union varray_data_tag): Prefix all field names with "vdt_".
1662         (VARRAY_CHAR, VARRAY_UCHAR, VARRAY_SHORT, VARRAY_USHORT,
1663         VARRAY_INT, VARRAY_UINT, VARRAY_LONG, VARRAY_ULONG,
1664         VARRAY_WIDE_INT, VARRAY_UWIDE_INT, VARRAY_GENERIC_PTR,
1665         VARRAY_GENERIC_PTR_NOGC, VARRAY_CHAR_PTR, VARRAY_RTX,
1666         VARRAY_RTVEC, VARRAY_TREE, VARRAY_BITMAP, VARRAY_REG, VARRAY_BB,
1667         VARRAY_ELT_LIST, VARRAY_EDGE, VARRAY_TREE_PTR): Adjust definition.
1668         (VARRAY_PUSH_CHAR, VARRAY_PUSH_UCHAR, VARRAY_PUSH_SHORT,
1669         VARRAY_PUSH_USHORT, VARRAY_PUSH_INT, VARRAY_PUSH_UINT, 
1670         VARRAY_PUSH_LONG, VARRAY_PUSH_ULONG, VARRAY_PUSH_WIDE_INT, 
1671         VARRAY_PUSH_UWIDE_INT, VARRAY_PUSH_GENERIC_PTR, 
1672         VARRAY_PUSH_GENERIC_PTR_NOGC, VARRAY_PUSH_CHAR_PTR, 
1673         VARRAY_PUSH_RTX, VARRAY_PUSH_RTVEC, VARRAY_PUSH_TREE, 
1674         VARRAY_PUSH_BITMAP, VARRAY_PUSH_REG, VARRAY_PUSH_BB, 
1675         VARRAY_PUSH_EDGE, VARRAY_PUSH_TREE_PTR): Likewise.
1676         (VARRAY_TOP_CHAR, VARRAY_TOP_UCHAR, VARRAY_TOP_SHORT, 
1677         VARRAY_TOP_USHORT, VARRAY_TOP_INT, VARRAY_TOP_UINT, 
1678         VARRAY_TOP_LONG, VARRAY_TOP_ULONG, VARRAY_TOP_WIDE_INT, 
1679         VARRAY_TOP_UWIDE_INT, VARRAY_TOP_GENERIC_PTR, 
1680         VARRAY_TOP_GENERIC_PTR_NOGC, VARRAY_TOP_CHAR_PTR, VARRAY_TOP_RTX, 
1681         VARRAY_TOP_RTVEC, VARRAY_TOP_TREE, VARRAY_TOP_BITMAP, 
1682         VARRAY_TOP_REG, VARRAY_TOP_BB, VARRAY_TOP_EDGE, 
1683         VARRAY_TOP_TREE_PTR): Likewise.
1684         * varray.c (varray_grow): Likewise.
1685         (varray_clear): Likewise.
1686
1687 2005-12-12  Alan Modra  <amodra@bigpond.net.au>
1688
1689         PR target/25299
1690         * config/rs6000/rs6000.c (rs6000_special_round_type_align): Increase
1691         alignment to doubleword if the first field is a double array.
1692         * config/rs6000/linux64.h (TARGET_ALIGN_NATURAL): Define.
1693
1694 2005-12-11  Daniel Berlin  <dberlin@dberlin.org>
1695
1696         * tree-ssa-structalias.c (process_constraint): Remove code to
1697         transform addressofs into scalar.
1698         (create_variable_info_for): In whole-program IPA, globals don't
1699         point to ANYTHING by default.
1700
1701 2005-12-11  Daniel Berlin  <dberlin@dberlin.org>
1702
1703         * timevar.def (TV_IPA_PTA): New.
1704         * tree-pass.h (pass_ipa_pta): New
1705         * tree-ssa-structalias.c: Include cgraph.h
1706         (in_ipa_mode): New.
1707         (predbitmap_obstack): New.
1708         (EXECUTE_IF_IN_NONNULL_BITMAP): New.
1709         (struct constraint_stats): Add num_edges.
1710         (new_var_info): Don't call bitmap_clear.
1711         (struct constraint_edge): Update docs.
1712         (new_constraint_edge): Remove src param.
1713         (struct constraint_graph): Add zero_weight_succs,
1714         zero_weight_preds.  Update docs.
1715         (constraint_expr_equal): Reformat.
1716         (constraint_edge_equal): Update for removal of src.
1717         (constraint_edge_less): Ditto.
1718         (constraint_edge_vec_find): Ditto.
1719         (erase_graph_self_edge): Update for removal of src and and zero
1720         weight bitmap.
1721         (clear_edges_for_node): Ditto.
1722         (add_graph_edge): Ditto.
1723         (get_graph_weights): Ditto.
1724         (allocate_graph_weights): Ditto.
1725         (merge_graph_nodes): Ditto.
1726         (int_add_graph_edge): Ditto.
1727         (valid_graph_edge): Ditto.
1728         (valid_weighted_graph_edge): Ditto.
1729         (build_constraint_graph): Ditto.
1730         (scc_visit): Ditto.
1731         (collapse_nodes): Ditto.
1732         (process_unification_queue): Ditto.
1733         (topo_visit): Ditto.
1734         (solve_graph): Ditto.
1735         (do_structure_copy): Ditto.
1736         (perform_var_substitution): Ditto.
1737         Init and release obstack.
1738         (handle_ptr_arith): Try to resolve directly.
1739         (find_func_aliases): Don't call update_alias_info here
1740         Handle RETURN_EXPR, and CALL_EXPR's in IPA mode.
1741         (do_sd_constraint): Add code for propagating faster.
1742         Update.
1743         (do_ds_constraint): Ditto.
1744         (count_num_arguments): New function.
1745         (create_function_info_for): Ditto.
1746         (create_variable_info_for): Handle FUNCTION_DECL.
1747         (intra_create_variable_infos): Use make_constraint_to_anything.
1748         (init_alias_vars): Init obstacks here.
1749         (need_to_solve): Handle zero weight graph changes.
1750         (compute_points_to_sets): Call update_alias_info here.
1751         (delete_points_to_sets): Free zero weight preds/succs here.
1752         (gate_ipa_pta): New.
1753         (ipa_pta_execute): New
1754
1755 2005-12-11  Daniel Berlin  <dberlin@dberlin.org>
1756
1757         * tree-ssa-structalias.c (var_anyoffset): Removed.
1758         (anyoffset_tree): Ditto.
1759         (anyoffset_id): Ditto.
1760         (do_deref): Take vector of constraints, no return value.
1761         Update to work on vector.                
1762         (get_constraint_for): Ditto.
1763         (get_constraint_for_component_ref): Ditto.
1764         (do_structure_copy): Ditto.
1765         (handle_ptr_arith): Ditto.
1766         (find_func_aliases): Ditto.
1767         (set_uids_in_ptset): Remove anyoffset handling.
1768         (init_base_vars): Ditto.
1769
1770 2005-12-10  Mark Mitchell  <mark@codesourcery.com>
1771
1772         PR c++/25010
1773         * ipa-inline.c (cgraph_clone_inlined_nodes): Do not assume that
1774         DECL_EXTERNAL functions have no bodies.  Tidy.
1775
1776 2005-12-10  Andreas Schwab  <schwab@suse.de>
1777
1778         * except.c (switch_to_exception_section): Only define if
1779         TARGET_UNWIND_INFO is not defined.
1780
1781 2005-12-10  Richard Sandiford  <richard@codesourcery.com>
1782
1783         * config/darwin.h (HAS_INIT_SECTION): Remove definition.
1784         (INIT_SECTION_ASM_OP): Restore empty definition from before 2005-12-07.
1785
1786 2005-12-10  Richard Sandiford  <richard@codesourcery.com>
1787
1788         * output.h (init_section, fini_section): Delete.
1789         * varasm.c (init_section, fini_section): Delete.
1790         (init_varasm_once): Don't initialize them.
1791         * doc/tm.texi (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Say that
1792         there are no corresponding varasm.c variables.
1793
1794 2005-12-10  Richard Sandiford  <richard@codesourcery.com>
1795
1796         * dwarf2out.c (default_eh_frame_section): Delete, moving handling
1797         of EH_FRAME_SECTION_NAME into...
1798         (switch_to_eh_frame_section): ...here.  Try to set eh_frame_section
1799         if it is still null.
1800         * except.c (default_exception_section): Delete, moving most
1801         of the code to...
1802         (switch_to_exception_section): ...this new function.  Set
1803         exception_section if it is still null, then switch to it.
1804         (output_function_exception_table): Use switch_to_exception_section.
1805         * varasm.c (exception_section, eh_frame_section): Update comments.
1806         (get_section): Hoist use of SECTION_NAMED.
1807         (init_varasm_once): Don't set exception_section and eh_frame_section.
1808         * output.h (default_exception_section): Delete.
1809         (default_eh_frame_section): Delete.
1810
1811 2005-12-09  Bernd Schmidt  <bernd.schmidt@analog.com>
1812
1813         * config/bfin/bfin.c: Include "cgraph.h".
1814         (bfin_load_pic_reg): Omit loading pic reg if in a local function.
1815         Return the reg that holds the pointer to the GOT.
1816         (bfin_expand_prologue): Use return value of bfin_load_pic_reg when
1817         doing stack checking.
1818
1819 2005-12-09  Diego Novillo  <dnovillo@redhat.com>
1820
1821         * tree.c (recompute_tree_invariant_for_addr_expr): Rename from
1822         recompute_tree_invarant_for_addr_expr.
1823         Update uses everywhere.
1824
1825 2005-12-09  Aldy Hernandez  <aldyh@redhat.com>
1826
1827         * config/ms1/t-ms1 (MULTILIB_OPTIONS): Define.
1828         (MULTILIB_DIRNAMES): Define.
1829
1830 2005-12-09  Ulrich Weigand  <uweigand@de.ibm.com>
1831
1832         PR target/25311
1833         * config/s390/s390.c (struct s390_address): New field literal_pool.
1834         (s390_decompose_address): Compute literal_pool field.  Do not 
1835         assume register %r13 is always (and solely) used as pool base.
1836         (s390_extra_constraint_str): Use literal_pool field.
1837
1838 2005-12-09  Thiemo Seufer  <ths@networkno.de>
1839
1840         * config/mips/mips.c (override_options): Don't allow too small
1841         integers in FP registers.
1842
1843 2005-12-09  Ulrich Weigand  <uweigand@de.ibm.com>
1844
1845         * config/s390/s390.c (s390_function_ok_for_sibcall): Use
1846         targetm.binds_local_p to check for local function calls.
1847
1848 2005-12-09  Alan Modra  <amodra@bigpond.net.au>
1849
1850         PR debug/24908
1851         * dwarf2out.c (dwarf2out_frame_debug_expr): Don't assert that
1852         call_used_regs can't be used to save reg in another reg.
1853
1854 2005-12-08  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1855             Christophe Jaillet  <christophe.jaillet@wanadoo.fr>
1856
1857         * ipa-type-escape.c (analyze_variable): Use gcc_assert instead of
1858         abort.
1859         * except.c (output_ttype): Likewise.
1860         * tree-object-size.c (collect_object_sizes_for): Likewise.
1861         (check_for_plus_in_loops_1): Likewise.
1862         (check_for_plus_in_loops): Likewise.
1863         (compute_object_sizes): Use gcc_unreachable instead of abort.
1864
1865 2005-12-08  Nathan Sidwell  <nathan@codesourcery.com>
1866
1867         * config/ms1/ms1.md (UNSPEC_LOOP): New constant.
1868         (loop_end, loop_init, doloop_end): New insns.
1869         * config/ms1/ms1.h (LOOP_FIRST, LOOP_LAST): New.
1870         (SPECIAL_REG_FIRST, FIRST_PSEUDO_REGISTER): Adjust.
1871         (FIXED_REGISTERS, CALL_USED_REGISTERS): Adjust.
1872         (REG_CLASS_CONTENTS, REGISTER_NAMES): Adjust.
1873         * config/ms1/ms1.c: #include basic-block.h
1874         (struct machine_function): Add has_loops field.
1875         (ms1_add_loop): New.
1876         (MAX_LOOP_DEPTH, MAX_LOO_LENGTH): New.
1877         (struct loop_info, struct loop_work): New.
1878         (ms1_loop_nesting, ms1_block_length, ms1_scan_loop): New workers.
1879         (ms1_reorg_loops): New loop optimization.
1880         (ms1_machine_reorg): Call it.
1881         * config/ms1/ms1-protos.h (ms1_add_loop): Declare.
1882
1883 2005-12-08  Zdenek Dvorak  <dvorakz@suse.cz>
1884
1885         PR tree-optimization/25248
1886         * tree-scalar-evolution.c (follow_ssa_edge_in_rhs): Do not use
1887         evolution_of_loop from the failed attempt.  Remove handling
1888         of MULT_EXPR.
1889
1890 2005-12-08  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1891
1892         * tree.h (DECL_EXTERNAL): Clarify documentation.
1893
1894 2005-12-08  Andreas Krebbel  <krebbel1@de.ibm.com>
1895             Jakub Jelinek  <jakub@redhat.com>
1896
1897         PR target/25268
1898         * config/s390/s390.c (s390_decompose_shift_count): Remove BITS
1899         argument.  Don't drop outer ANDs.
1900         (s390_extra_constraint_str, print_shift_count_operand): Adjust callers.
1901         * config/s390/s390-protos.h (s390_decompose_shift_count): Adjust
1902         prototype.
1903         * config/s390/predicates.md (setmem_operand): Remove.
1904         (shift_count_operand): Rename to...
1905         (shift_count_or_setmem_operand): ... this.  Adjust
1906         s390_decompose_shift_count caller.
1907         * config/s390/s390.md (<shift>di3_31_and, <shift>di3_64_and,
1908         ashrdi3_cc_31_and, ashrdi3_cconly_31_and, ashrdi3_31_and,
1909         ashrdi3_cc_64_and, ashrdi3_cconly_64_and, ashrdi3_64_and,
1910         <shift>si3_and, ashrsi3_cc_and, ashrsi3_cconly_and, ashrsi3_and,
1911         rotl<mode>3_and, setmem_long_and): New insns.
1912         (<shift>di3_31, <shift>di3_64, ashrdi3_cc_31, ashrdi3_cconly_31,
1913         ashrdi3_31, ashrdi3_cc_64, ashrdi3_cconly_64, ashrdi3_64,
1914         <shift>si3, ashrsi3_cc, ashrsi3_cconly, ashrsi3, rotl<mode>3,
1915         <shift>di3, ashrdi3): Use shift_count_or_setmem_operand instead
1916         of shift_count_operand.
1917         (setmem_long): Use shift_count_or_setmem_operand instead of
1918         setmem_operand.
1919
1920 2005-12-08  Daniel Jacobowitz  <dan@codesourcery.com>  
1921             Andreas Tobler  <a.tobler@schweiz.ch>
1922
1923         * Makefile.in (ALL_GTFILES_H): Replace sed statement with more portable
1924         tr expression.
1925
1926 2005-12-07  J"orn Rennecke <joern.rennecke@st.com>
1927
1928         * expr.c (force_operand): Use convert_to_mode for conversions.
1929
1930 2005-12-07  J"orn Rennecke <joern.rennecke@st.com>
1931
1932         * reload.h (reg_equiv_invariant): Declare.
1933         * reload.c (refers_to_regno_for_reload_p): Allow R to be a pseudo
1934         register also when reg_equiv_invariant[R] is set.
1935
1936 2005-12-07  Richard Sandiford  <richard@codesourcery.com>
1937             Andreas Tobler  <a.tobler@schweiz.ch>
1938
1939         * config/darwin.h: Guard section variables with #ifndef USED_FOR_TARGET.
1940
1941 2005-12-07  Daniel Berlin  <dberlin@dberlin.org>
1942
1943         * tree-ssa-pre.c (bitmap_set_and): New function.
1944         (bitmap_set_and_compl): New function.
1945         (bitmap_set_empty_p): New function.
1946         (insert_extra_phis): New function.
1947         (compute_avail): Use insert_extra_phis.
1948
1949 2005-12-07  Adrian Straetling  <straetling@de.ibm.com>
1950
1951         * config/s390/s390.c (s390_expand_atomic): New function.
1952         Adjust comment of helper functions.
1953         * config/s390/s390-protos.h (s390_expand_atomic): Declare.
1954         * config/s390/s390.md ("ATOMIC"): New code macro.
1955         ("atomic"): Corresponding new code attribute.
1956         ("sync_lock_test_and_set[hq]i", 
1957         "sync_{new_,old_,}{and,ior,xor,add,sub,nand}[hq]i"): New pattern.
1958
1959 2005-12-07  Adrian Straetling  <straetling@de.ibm.com>
1960
1961         * config/s390/s390.c (s390_expand_mask_and_shift, 
1962         struct alignment_context, init_alignment_context, 
1963         s390_expand_cs_hqi): New.
1964         * config/s390/s390-protos.h (s390_expand_cs_hqi): Declare.
1965         * config/s390/s390.md ("sync_compare_and_swaphi",
1966         "sync_compare_and_swapqi"): New pattern.
1967
1968 2005-12-07  Daniel Berlin <dberlin@dberlin.org>
1969
1970         Fix PR tree-optimization/25291
1971         * tree-ssa-operands.c (add_call_clobber_ops): Remove
1972         redundant and crashing check.
1973
1974 2005-12-08  Alan Modra  <amodra@bigpond.net.au>
1975
1976         PR target/25212
1977         * config/rs6000/rs6000.c (legitimate_indexed_address_p): Relax
1978         tests further when !strict && reload_in_progress.
1979         (print_operand): Check that both operands of indexed address are regs.
1980         (print_operand_address): Likewise.
1981         * config/rs6000/rs6000.h (INT_REG_OK_FOR_INDEX_P): Simplify.
1982         (INT_REG_OK_FOR_BASE_P): Correct.
1983
1984 2005-12-07  J"orn Rennecke <joern.rennecke@st.com>
1985
1986         Preparation for PR rtl-optimization/20070 / part1
1987         * basic-block.h (insns_match_p, flow_find_cross_jump): Declare.
1988         * cfgcleanup.c (condjump_equiv_p): New function, broken out of
1989         outgoing_edges_match.
1990         (outgoing_edges_match): Use condjump_equiv_p.
1991         (merge_memattrs, insns_match_p, flow_find_cross_jump): Move from here
1992         into..
1993         * struct-equiv.c: New file.
1994         (death_notes_match_p) New function, broken out of insns_match_p.
1995         * Makefile.in (OBJS-common): Add struct-equiv.o.
1996         (struct-equiv.o): New target.
1997
1998 2005-12-07  Richard Sandiford  <richard@codesourcery.com>
1999
2000         * coretypes.h: Revert previous change.
2001         * config/darwin.h: Revert previous reversion.
2002         * config/avr/avr.h (progmem_section): Guard with #ifndef IN_LIBGCC2.
2003
2004 2005-12-07  Richard Sandiford  <richard@codesourcery.com>
2005
2006         * coretypes.h (section): Provide dummy definition for target files.
2007         * config/darwin.h: Revert previous change.
2008
2009 2005-12-07  Rafael vila de Espndola  <rafael.espindola@gmail.com>
2010
2011         * doc/sourcebuild.texi (all.build, install-normal): Remove.
2012         * configure.ac: Remove all.build and install-normal from target_list
2013         * configure: Regenerate.
2014         * Makefile.in (install): Don't depend on install-normal.
2015
2016 2005-12-07  Rafael vila de Espndola  <rafael.espindola@gmail.com>
2017
2018         * Makefile.in: Document the use of stamps.
2019
2020 2005-12-07  Rafael vila de Espndola  <rafael.espindola@gmail.com>
2021
2022         * doc/gty.texi: Remove instructions for adding a dependency on s-gtype.
2023         * Makefile.in: Add code to compute some dependencies on s-gtype
2024         automatically.  Remove the declaration of those dependencies.
2025
2026 2005-12-07  Richard Sandiford  <richard@codesourcery.com>
2027
2028         * gcc/reload.c (push_secondary_reload): Fix typo:
2029         s/insn_constraint/scratch_constraint/.
2030
2031 2005-12-07  Richard Sandiford  <richard@codesourcery.com>
2032
2033         * config/darwin.h: Guard section variables with #ifndef IN_LIBGCC2.
2034
2035 2005-12-07  Richard Sandiford  <richard@codesourcery.com>
2036
2037         * config/alpha/alpha.c (alpha_start_function): Use switch_to_section.
2038         (alpha_elf_select_rtx_section): Return the selected section rather
2039         than emitting assembly code.
2040         (alpha_write_linkage): Emit a ".link" directive directly and then
2041         set in_section to NULL.
2042         (vms_asm_out_constructor): Use switch_to_section.
2043         (vms_asm_out_destructor): Likewise.
2044         (unicosmk_output_common): Set in_section to NULL instead of calling
2045         the dummy common_section function.
2046         (unicosmk_text_section): Delete in favor of...
2047         (unicosmk_output_text_section_asm_op): ...this new function.
2048         (unicosmk_data_section): Delete in favor of...
2049         (unicosmk_output_data_section_asm_op): ...this new function.
2050         (unicosmk_init_sections): New function.
2051         (unicosmk_output_deferred_case_vectors): Use switch_to_section.
2052         (unicosmk_output_ssib): Set in_section to NULL instead of calling
2053         the dummy ssib_section function.
2054         (unicosmk_section_buf): Delete.
2055         * config/alpha/alpha-protos.h (unicosmk_text_section): Delete.
2056         (unicosmk_data_section): Delete.
2057         * config/alpha/elf.h (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
2058         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, sbss_section, sdata_section)
2059         (SECTION_FUNCTION_TEMPLATE): Delete.
2060         * config/alpha/unicosmk.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP)
2061         (READONLY_DATA_SECTION, EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
2062         (common_section, COMMON_SECTION, ssib_section, SSIB_SECTION): Delete.
2063         (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
2064         (TARGET_ASM_INIT_SECTIONS): Define.
2065         * config/alpha/vms.h (LINK_SECTION_ASM_OP, LITERALS_SECTION_ASM_OP)
2066         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
2067         (link_section, literals_section): Delete.
2068         (ASM_OUTPUT_DEF): Emit the ".literal" directive directly and then
2069         set in_section to NULL.
2070
2071         * config/arm/aof.h (TEXT_SECTION_ASM_OP, DATA_SECTION_ASM_OP): Delete.
2072         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, ZERO_INIT_SECTION): Delete.
2073         (COMMON_SECTION): Delete.
2074         (TARGET_ASM_INIT_SECTIONS): Define.
2075         (ASM_OUTPUT_COMMON): Set in_section to NULL rather than calling
2076         the dummy common_section function.
2077         * config/arm/aout.h (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
2078         * config/arm/arm.c (get_jump_table_size): Use pointer comparison
2079         between readonly_data_section and text_section to check whether
2080         read-only data is being put in the text section.
2081         (arm_output_function_epilogue): Use switch_to_section.
2082         (arm_elf_asm_constructor): Likewise.
2083         (thumb_call_via_reg): Replace call to in_text_section with
2084         a comparison between in_section and text_section.
2085         (arm_file_end): Use switch_to_section.
2086         (aof_text_section): Delete in favor of...
2087         (aof_output_text_section_asm_op): ...this new function.
2088         (aof_data_section): Delete in favor of...
2089         (aof_output_data_section_asm_op): ...this new function.
2090         (aof_asm_init_sections): New function.
2091         (zero_init_section): Moved from config/arm/aof.h.
2092         (aof_dump_imports, aof_file_start): Use switch_to_section.
2093         * config/arm/arm.h (thumb_call_via_label): Update comment.
2094         * config/arm/arm-protos.h (aof_text_section, aof_data_section): Delete.
2095         (common_section): Delete.
2096         * config/arm/pe.h (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section.
2097         (ASM_DECLARE_OBJECT_NAME): Update the type of save_section.  Use the
2098         global switch_to_section function instead of the old port-local one.
2099         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, DRECTVE_SECTION_FUNCTION)
2100         (SWITCH_TO_SECTION_FUNCTION): Delete.
2101         (drectve_section): Redefine as a macro.
2102         * config/arm/unknown-elf.h (ASM_OUTPUT_ALIGNED_BSS):
2103         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use get_named_section and
2104         switch_to_section.
2105
2106         * config/avr/avr.c (progmem_section): New variable.
2107         (avr_output_progmem_section_asm_op): New function.
2108         (avr_asm_init_sections): New function.
2109         (avr_output_addr_vec_elt): Use switch_to_section.
2110         * config/avr/avr.h (progmem_section): Declare.
2111         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
2112         (READONLY_DATA_SECTION): Delete.
2113         (TARGET_ASM_INIT_SECTIONS): Define.
2114         (ASM_OUTPUT_CASE_LABEL): Use switch_to_section.
2115         * config/avr/avr-protos.h (progmem_section): Delete.
2116
2117         * config/bfin/bfin.h (ASM_OUTPUT_LOCAL): Use switch_to_section.
2118
2119         * config/c4x/c4x.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
2120         (INIT_SECTION_FUNCTION, FINI_SECTION_FUNCTION): Delete.
2121
2122         * config/darwin-sections.def: New file.
2123         * config/darwin.c: Define all sections in darwin-sections.def.
2124         (output_objc_section_asm_op, darwin_init_sections): New functions.
2125         (machopic_output_indirection): Use switch_to_section.
2126         (machopic_select_section): Return the selected section rather than
2127         emitting assembly code.  Replace the static function table with
2128         inline conditional expressions.  Update the tests of last_text_section
2129         and move them into the FUNCTION_DECL block.
2130         (machopic_select_rtx_section): Return the selected section rather than
2131         emitting assembly code.
2132         (machopic_asm_out_constructor, machopic_asm_out_destructor)
2133         (darwin_file_end): Use switch_to_section.
2134         * config/darwin.h: Use darwin-sections.def to declare sections.
2135         (INIT_SECTION_ASM_OP): Remove empty definition.
2136         (HAS_INIT_SECTION): Define this instead.
2137         (SECTION_FUNCTION, EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
2138         (READONLY_DATA_SECTION, TARGET_ASM_EXCEPTION_SECTION): Delete.
2139         (TARGET_ASM_EH_FRAME_SECTION): Delete.
2140         (TARGET_ASM_INIT_SECTIONS): Define.
2141         * config/darwin-protos.h (darwin_init_sections): Declare.
2142         (machopic_picsymbol_stub_section, machopic_picsymbol_stub1_section)
2143         (machopic_symbol_stub_section, machopic_symbol_stub1_section): Delete.
2144         (machopic_lazy_symbol_ptr_section, machopic_nl_symbol_ptr_section)
2145         (constructor_section, destructor_section, mod_init_section): Delete.
2146         (mod_term_section): Delete.
2147         (darwin_exception_section, darwin_eh_frame_section): Delete.
2148         (machopic_select_section): Return a section.
2149         (machopic_select_rtx_section): Likewise.
2150         (text_coal_section, text_unlikely_section, text_unlikely_coal_section)
2151         (const_section, const_coal_section, const_data_section): Delete.
2152         (const_data_coal_section, data_coal_section, cstring_section): Delete.
2153         (literal4_section, literal8_section, constructor_section): Delete.
2154         (mod_init_section, mod_term_section, destructor_section): Delete.
2155         (objc_class_section, objc_meta_class_section, objc_category_section)
2156         (objc_class_vars_section, objc_instance_vars_section): Delete.
2157         (objc_cls_meth_section, objc_inst_meth_section): Delete.
2158         (objc_cat_cls_meth_section, objc_cat_inst_meth_section): Delete.
2159         (objc_selector_refs_section, objc_selector_fixup_section): Delete.
2160         (objc_symbols_section, objc_module_info_section): Delete.
2161         (objc_image_info_section, objc_protocol_section): Delete.
2162         (objc_string_object_section, objc_constant_string_object_section)
2163         (objc_class_names_section, objc_meth_var_names_section): Delete.
2164         (objc_meth_var_types_section, objc_cls_refs_section): Delete.
2165         (machopic_lazy_symbol_ptr_section, machopic_nl_symbol_ptr_section)
2166         (machopic_symbol_stub_section, machopic_picsymbol_stub_section)
2167         (darwin_exception_section, darwin_eh_frame_section): Delete.
2168         * config/t-darwin (darwin.o): Depend on config/darwin-sections.def.
2169
2170         * config/frv/frv.c (frv_asm_out_constructor): Use switch_to_section.
2171         (frv_asm_out_destructor): Likewise.
2172         * config/frv/frv.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
2173         (SDATA_SECTION_FUNCTION, FIXUP_SECTION_FUNCTION): Delete.
2174         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use switch_to_section and
2175         get_named_section.
2176         (ASM_OUTPUT_CASE_LABEL): Use switch_to_section.
2177         * config/frv/frv-protos.h (fixup_section, sdata_section, sbss_section)
2178         (data_section): Delete.
2179
2180         * config/i386/cygming.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
2181         (DRECTVE_SECTION_FUNCTION): Delete.
2182         (drectve_section): Redefine as a macro that sets in_section after
2183         emitting the directive.
2184         (SWITCH_TO_SECTION_FUNCTION): Delete.
2185         * config/i386/darwin.h (ASM_OUTPUT_ALIGN): Replace call to
2186         in_text_section with comparison between in_section and text_section.
2187         * config/i386/i386.c (x86_64_elf_select_section): Return the section
2188         rather than emitting assembly code.  Use get_named_section.
2189         (x86_output_aligned_bss, ix86_file_end): Use switch_to_section and
2190         get_named_section.
2191         (machopic_output_stub): Use switch_to_section.
2192         * config/i386/nwld.c (nwld_named_section_asm_out_constructor)
2193         (nwld_named_section_asm_out_destructor): Use get_section and
2194         switch_to_section.
2195
2196         * config/ia64/ia64.c (ia64_select_rtx_section): Return the section
2197         rather than emitting assembly code.
2198         (ia64_rwreloc_select_section): Likewise.
2199         (ia64_rwreloc_select_rtx_section): Likewise.
2200         * config/ia64/ia64-protos.h (sdata_section, sbss_section): Delete.
2201         * config/ia64/sysv4.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Use
2202         switch_to_section.
2203         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
2204         (SDATA_SECTION_FUNCTION, SBSS_SECTION_FUNCTION): Delete.
2205
2206         * config/iq2000/iq2000.c (iq2000_select_rtx_section): Return the
2207         section rather than emitting assembly code.
2208         (iq2000_select_section): Likewise.
2209         * config/iq2000/iq2000.h (rdata_section, sdata_section): Delete.
2210         (sbss_section): Delete.
2211
2212         * config/m32r/m32r.h (ASM_OUTPUT_ALIGNED_BSS): Use switch_to_section
2213         and get_named_section.
2214         * config/m32r/m32r-protos.h (sbss_section, sdata_section): Delete.
2215
2216         * config/mcore/mcore-elf.h (EXPORTS_SECTION_ASM_OP): Delete.
2217         (SUBTARGET_EXTRA_SECTIONS, SUBTARGET_EXTRA_SECTION_FUNCTIONS): Delete.
2218         (EXPORT_SECTION_FUNCTION, SUBTARGET_SWITCH_SECTIONS): Delete.
2219         (MCORE_EXPORT_NAME): Emit the exports directive directly, then set
2220         in_section to NULL.
2221         (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section.
2222         (ASM_DECLARE_OBJECT_NAME): Update the type of save_section.  Use the
2223         global switch_to_section function instead of the old port-local one.
2224         * config/mcore/mcore.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
2225         (SWITCH_SECTION_FUNCTION): Delete.
2226         * config/mcore/mcore-pe.h (SUBTARGET_SWITCH_SECTIONS): Delete.
2227         (DRECTVE_SECTION_ASM_OP, SUBTARGET_EXTRA_SECTIONS): Delete.
2228         (SUBTARGET_EXTRA_SECTION_FUNCTIONS, DRECTVE_SECTION_FUNCTION): Delete.
2229         (MCORE_EXPORT_NAME): Emit ".section .drectve" directly, then set
2230         in_section to NULL.
2231         (ASM_DECLARE_OBJECT_NAME): Update the type of save_section.  Use the
2232         global switch_to_section function instead of the old port-local one.
2233         (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section.
2234
2235         * config/mips/mips.c (mips_file_start): Update comment.
2236         (mips_output_aligned_bss): Use switch_to_section and get_named_section.
2237         (mips_output_aligned_decl_common): Use switch_to_section.
2238         (mips_select_rtx_section): Return the section rather than emitting
2239         assembly code.  Use get_named_section.
2240         (mips_function_rodata_section: Likewise get_section.
2241         (build_mips16_function_stub): Use switch_to_section.
2242         * config/mips/mips.h (ASM_OUTPUT_IDENT): Use switch_to_section.
2243         (SDATA_SECTION_ASM_OP): Delete.
2244         * config/mips/vxworks.h (EXTRA_SECTIONS): Delete.
2245         (EXTRA_SECTION_FUNCTIONS): Delete.
2246
2247         * config/mmix/mmix.c (mmix_file_start, mmix_file_end)
2248         (mmix_asm_output_aligned_local): Use switch_to_section.
2249
2250         * config/pa/pa.c (som_readonly_data_section, som_one_only_data_section)
2251         (som_one_only_readonly_data_section): New variables.
2252         (pa_output_function_epilogue): Set in_section to NULL instead of
2253         calling forget_section.
2254         (output_deferred_plabels): Use select_section.
2255         (pa_asm_output_mi_thunk): Likewise.  Set in_section to NULL instead
2256         of calling forget_section.
2257         (pa_asm_output_aligned_bss, pa_asm_output_aligned_common)
2258         (pa_asm_output_aligned_local): Use select_section.
2259         (som_text_section_asm_op): Delete in favor of...
2260         (som_output_text_section_asm_op): ...this new function.
2261         (pa_som_asm_init_sections): New function.
2262         (pa_select_section): Return the section rather than emitting
2263         assembly code.
2264         * config/pa/pa.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
2265         (SOM_READONLY_DATA_SECTION_FUNCTION): Delete.
2266         (SOM_ONE_ONLY_READONLY_DATA_SECTION_FUNCTION): Delete.
2267         (SOM_ONE_ONLY_DATA_SECTION_FUNCTION, FORGET_SECTION_FUNCTION): Delete.
2268         * config/pa/pa-protos.h (som_text_section_asm_op): Delete.
2269         (som_readonly_data_section, som_one_only_readonly_data_section)
2270         (som_one_only_data_section, forget_section): Delete.
2271         * config/pa/som.h (TEXT_SECTION_ASM_OP): Delete.
2272         (TARGET_ASM_INIT_SECTIONS): Define.
2273         (READONLY_DATA_SECTION, TARGET_ASM_EXCEPTION_SECTION): Delete.
2274
2275         * config/rs6000/rs6000.c (read_only_data_section): New variable.
2276         (private_data_section, read_only_private_data_section): New variables.
2277         (sdata2_section, toc_section): New variables.
2278         (rs6000_file_start): Use switch_to_section.
2279         (rs6000_assemble_integer): Use comparisons against in_section
2280         instead of calling in_toc_section and in_text_section.  Use
2281         unlikely_text_section_p.
2282         (rs6000_elf_output_toc_section_asm_op): New function, derived
2283         from the old rs6000/sysv4.h toc_section function.
2284         (rs6000_elf_asm_init_sections): New function.
2285         (rs6000_elf_select_rtx_section, rs6000_elf_select_section): Return
2286         the section rather than emitting assembly code.
2287         (machopic_output_stub): Use switch_to_section.
2288         (toc_section): Delete dummy function.
2289         (rs6000_elf_asm_out_constructor, rs6000_elf_asm_out_destructor): Use
2290         switch_to_section and get_section.
2291         (rs6000_xcoff_output_readonly_section_asm_op): New function.
2292         (rs6000_xcoff_output_readwrite_section_asm_op): New function.
2293         (rs6000_xcoff_output_toc_section_asm_op): New function, derived from
2294         the old rs6000/xcoff.h toc_section function.
2295         (rs6000_xcoff_asm_init_sections): New function.
2296         (rs6000_xcoff_select_section, rs6000_xcoff_select_rtx_section): Return
2297         the section rather than emitting assembly code.
2298         (rs6000_xcoff_file_start): Use switch_to_section.
2299         (rs6000_xcoff_file_end): Likewise.
2300         * config/rs6000/rs6000-protos.h (toc_section, sdata_section): Delete.
2301         (sdata2_section, sbss_section, private_data_section): Delete.
2302         (read_only_data_section, read_only_private_data_section): Delete.
2303         * config/rs6000/sysv4.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
2304         (TOC_SECTION_FUNCTION, SDATA_SECTION_FUNCTION, SDATA2_SECTION_FUNCTION)
2305         (SBSS_SECTION_FUNCTION, INIT_SECTION_FUNCTION): Delete.
2306         (FINI_SECTION_FUNCTION): Delete.
2307         (TARGET_ASM_INIT_SECTIONS): Define.
2308         (ASM_OUTPUT_ALIGNED_LOCAL): Use switch_to_section.
2309         * config/rs6000/xcoff.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
2310         (READ_ONLY_DATA_SECTION_FUNCTION, PRIVATE_DATA_SECTION_FUNCTION)
2311         (READ_ONLY_PRIVATE_DATA_SECTION_FUNCTION, TOC_SECTION_FUNCTION)
2312         (READONLY_DATA_SECTION): Delete.
2313         (TARGET_ASM_INIT_SECTIONS): Define.
2314         (ASM_DECLARE_FUNCTION_NAME): Use switch_to_section.  Set in_section
2315         to NULL rather than no_section.
2316         (TARGET_ASM_EXCEPTION_SECTION): Delete.
2317
2318         * config/sh/sh.c (sh_file_start): Use switch_to_section.
2319
2320         * config/sparc/sparc.c (emit_pic_helper): Use switch_to_section.
2321         (sparc_output_deferred_case_vectors): Likewise.  Remove argument
2322         from call to current_function_section.
2323
2324         * config/stormy16/stormy16.c: Include ggc.h and gt-storm16.h.
2325         (bss100_section): New variable.
2326         (xstormy16_asm_output_aligned_common): Use switch_to_section.
2327         (xstormy16_asm_init_sections): New function.
2328         (xstormy16_asm_out_destructor, xstormy16_asm_out_constructor): Use
2329         switch_to_section and get_section.
2330         (xstormy16_output_addr_vec): Use switch_to_section.  Remove argument
2331         from calls to current_function_section.
2332         * config/stormy16/stormy16.h (EXTRA_SECTIONS): Delete.
2333         (XSTORMY16_SECTION_FUNCTION, EXTRA_SECTION_FUNCTIONS): Delete.
2334         (TARGET_ASM_INIT_SECTIONS): Define.
2335         * config/stormy16/stormy16-protos.h (bss100_section): Delete.
2336
2337         * config/svr3.h (ASM_OUTPUT_LOCAL): Use switch_to_section.
2338         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, INIT_SECTION_FUNCTION)
2339         (FINI_SECTION_FUNCTION): Delete.
2340
2341         * config/v850/v850.c: Include gt-v850.h.
2342         (rosdata_section, rozdata_section, tdata_section, zdata_section)
2343         (zbss_section): New variables.
2344         (v850_output_aligned_bss): Use switch_to_section.
2345         (v850_asm_init_sections): New function.
2346         (v850_select_section): Return the section rather than emitting
2347         assembly code.
2348         * config/v850/v850.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS)
2349         (ZDATA_SECTION_ASM_OP, ZBSS_SECTION_ASM_OP, TDATA_SECTION_ASM_OP)
2350         (ROSDATA_SECTION_ASM_OP, ROZDATA_SECTION_ASM_OP): Delete.
2351         (TARGET_ASM_INIT_SECTIONS): Define.
2352         * config/v850/v850-protos.h (sdata_section, rosdata_section): Delete.
2353         (sbss_section, tdata_section, zdata_section, rozdata_section): Delete.
2354         (zbss_section): Delete.
2355
2356         * config/vax/vaxv.h (ASM_OUTPUT_LOCAL): Use switch_to_section.
2357
2358         * config/vx-common.h (vxworks_exception_section): Delete.
2359         (TARGET_ASM_EXCEPTION_SECTION): Delete.
2360
2361         * config/xtensa/xtensa.c (xtensa_select_rtx_section): Return the
2362         section rather than emitting assembly code.
2363         * config/xtensa/xtensa.h (ASM_OUTPUT_POOL_PROLOGUE): Use
2364         switch_to_section.
2365
2366         * Makefile.in (GTFILES): Add $(srcdir)/output.h.
2367         * coretypes.h (section): New union and typedef.
2368         * dbxout.c (FORCE_TEXT): Use switch_to_section.  Remove argument
2369         from call to current_function_section.
2370         (dbxout_function_end, dbxout_init, dbxout_source_file, dbxout_finish)
2371         (dbxout_symbol_location): Use switch_to_section.
2372         * dwarf2out.c (named_section_eh_frame_section): Delete, moving
2373         most of the code into...
2374         (default_eh_frame_section): ...here.  Return a section.
2375         (collect2_eh_frame_section): Delete, moving most of the code into..
2376         (switch_to_eh_frame_section): ...this new function.
2377         (debug_info_section, debug_abbrev_section, debug_aranges_section)
2378         (debug_macinfo_section, debug_line_section, debug_loc_section)
2379         (debug_pubnames_section, debug_str_section, debug_ranges_section): New
2380         variables.
2381         (output_call_frame_info): Call switch_to_eh_frame_section instead of
2382         eh_frame_section.  Use switch_to_section and get_section.
2383         (dwarf2out_begin_prologue): Use switch_to_section.
2384         (AT_string_form): Check the flags in debug_str_section instead of
2385         DEBUG_STR_SECTION_FLAGS.
2386         (output_comp_unit): Use switch_to_section, get_section, and
2387         debug_info_section.
2388         (output_line_info, secname_for_decl): Use unlikely_text_section_p.
2389         (dwarf2out_begin_block): Use switch_to_section.  Remove argument
2390         from call to current_function_section.
2391         (dwarf2out_var_location): Use unlikely_text_section_p.
2392         (dwarf2out_source_line): Use switch_to_section.  Remove argument
2393         from call to current_function_section.
2394         (dwarf2out_start_source_file, dwarf2out_end_source_file)
2395         (dwarf2out_define, dwarf2out_undef: Use switch_to_section and
2396         debug_macinfo_section.
2397         (dwarf2out_init): Initialize the new section variables.  Use them
2398         instead of calls to named_section_flags.  Use switch_to_section.
2399         (output_indirect_string): Use switch_to_section and debug_str_section.
2400         (dwarf2out_finish): Use switch_to_section and the new section
2401         variables.
2402         * except.c (default_exception_section): Return the section instead
2403         of emitting assembly code.
2404         (output_function_exception_table): Use the global exception_section
2405         variable instead of the target hook.  Use switch_to_section.  Remove
2406         argument from call to current_function_section.
2407         * final.c (HAVE_READONLY_DATA_SECTION): Delete.
2408         (shorten_branches): Use pointer comparisons to detect whether the
2409         text section is the same as readonly_data_section.
2410         (profile_function): Use switch_to_section.  Remove argument from
2411         call to current_function_section.
2412         (final_scan_insn): Likewise.  Update use of last_text_section.
2413         * gengtype.c (open_base_files): Add an include of output.h.
2414         * output.h (text_section, data_section, readonly_data_section)
2415         (ctors_section, dtors_section, bss_section, init_section)
2416         (fini_section, sdata_section): Turn into section pointers.
2417         (in_text_section, in_unlikely_text_section, exports_section)
2418         (drectve_section, named_section, mergeable_string_section)
2419         (last_text_section_name): Delete.
2420         (default_exception_section, default_eh_frame_section): Return sections.
2421         (SECTION_DECLARED, SECTION_NAMED): New macros.
2422         (SECTION_MACH_DEP): Bump value.
2423         (section_common, named_section, unnamed_section): New structures.
2424         (unnamed_section_callback): New typedef.
2425         (section): New union.
2426         (sbss_section, exception_section, eh_frame_section): New variables.
2427         (in_section, last_text_section): Turn into section pointers.
2428         (get_unnamed_section, get_section, get_named_section): New functions.
2429         (mergeable_constant_section, function_section): Return a section.
2430         (unlikely_text_section): Likewise.
2431         (current_function_section): Likewise.  Remove the decl argument.
2432         (unlikely_text_section_p, switch_to_section): New functions.
2433         (output_section_asm_op): New function.
2434         (set_named_section_flags, named_section_flags, named_section_real)
2435         (named_section_first_declaration): Delete.
2436         (default_select_section, default_elf_select_section): Return a section.
2437         (default_elf_select_section_1, default_function_rodata_section)
2438         (default_no_function_rodata_section, default_select_rtx_section)
2439         (default_elf_select_rtx_section): Likewise.
2440         * rtl.h (in_data_section): Delete.
2441         * sdbout.c (sdbout_one_type): Use switch_to_section.
2442         * system.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Poison.
2443         (READONLY_DATA_SECTION, TARGET_ASM_EXCEPTION_SECTION): Poison.
2444         (TARGET_ASM_EH_FRAME_SECTION): Poison.
2445         * target-def.h (TARGET_ASM_INIT_SECTIONS): New macro.
2446         (TARGET_ASM_EXCEPTION_SECTION, TARGET_ASM_EH_FRAME_SECTION): Delete.
2447         (TARGET_ASM_OUT): Update after above changes.
2448         * target.h (init_sections): New hook.
2449         (exception_section, eh_frame_section): Delete.
2450         (select_section, select_rtx_section, function_rodata_section): Return
2451         a section rather than emitting assembly code.
2452         * varasm.c (text_section, data_section, readonly_data_section)
2453         (ctors_section, dtors_section, bss_section, init_section)
2454         (fini_section): Turn into section pointers.
2455         (sdata_section, sbss_section, exception_section): New variables.
2456         (eh_frame_section): New variable.
2457         (in_section): Make global and turn into a section pointer.
2458         (last_text_section): Turn into a section pointer.
2459         (unnamed_sections): New variable.
2460         (in_named_name, last_text_section_name): Delete.
2461         (EXTRA_SECTION_FUNCTIONS): Delete.
2462         (in_named_entry): Delete.
2463         (section_htab): New variable, replacing...
2464         (in_named_htab): ...this deleted variable.
2465         (section_entry_eq, section_entry_hash): New functions, based on...
2466         (in_named_entry_eq, in_named_entry_hash): ...these deleted functions.
2467         (get_unnamed_section, get_section): New functions.
2468         (unlikely_text_section): Return a section instead of emitting
2469         assembly code.
2470         (in_text_section, in_unlikely_text_section, in_data_section): Delete.
2471         (get_named_section_flags, named_section_first_declaration): Delete.
2472         (unlikely_text_section_p): New function.
2473         (named_section_real, named_section): Delete.
2474         (get_named_section): New function.
2475         (asm_output_bss, asm_output_aligned_bss): Use switch_to_section.
2476         (function_section): Return a section rather than emitting
2477         assembly code.
2478         (current_function_section): Likewise.  Remove argument.  Use
2479         last_text_section if nonnull, otherwise use function_section.
2480         (default_function_rodata_section): Return a section rather than
2481         emitting assembly code.  Use get_section.
2482         (default_no_function_rodata_section): Return a section rather than
2483         emitting assembly code.
2484         (variable_section): Use switch_to_section and get_named_section.
2485         (mergeable_string_section): Return a section rather than emitting
2486         assembly code.  Use get_section.  Make static.  Don't take special
2487         countermeasures for empty strings.
2488         (mergeable_constant_section): Return a section rather than emitting
2489         assembly code.  Use get_section.
2490         (default_named_section_asm_out_destructor): Use switch_to_section
2491         and get_section.
2492         (default_dtor_section_asm_out_destructor): Use switch_to_section.
2493         (default_named_section_asm_out_constructor): Use switch_to_section
2494         and get_section.
2495         (default_ctor_section_asm_out_constructor): Use switch_to_section.
2496         (assemble_start_function): Likewise.  Set last_text_section to
2497         NULL rather than no_section.  Change the type of save_section.
2498         (assemble_zeros, assemble_variable): Use the section flags to detect
2499         whether or not a section is text.
2500         (assemble_static_space): Use switch_to_section.
2501         (assemble_trampoline_template): Likewise.
2502         (output_constant_def_contents): Use switch_to_section and
2503         get_named_section.
2504         (output_constant_pool_1): Use switch_to_section.  Use the section
2505         flags to see whether sections contain mergeable data.
2506         (init_varasm_once): Initialize section_htab instead of in_named_htab.
2507         Initialize new section variables.  Call TARGET_ASM_INIT_SECTIONS.
2508         (default_elf_asm_named_section): Use SECTION_DECLARED to detect
2509         whether a section has already been declared.
2510         (default_select_section, default_elf_select_section): Return a
2511         section rather than emitting assembly code.
2512         (default_elf_select_section_1): Likewise.  Use bss_section for
2513         SECCAT_BSS if nonnull.  Use get_named_section.
2514         (default_select_rtx_section): Return a section rather than
2515         emitting assembly code.
2516         (default_elf_select_rtx_section): Likewise.  Use get_named_section.
2517         (file_end_indicate_exec_stack): Use switch_to_section and get_section.
2518         (output_section_asm_op, switch_to_section): New functions.
2519         * vmsdbgout.c (vmsdbgout_finish): Use switch_to_section and
2520         get_named_section.
2521
2522         * doc/tm.texi: Expand the introduction to the sections documentation.
2523         (TRAMPOLINE_SECTION): Document new interface.
2524         (SDATA_SECTION_ASM_OP): Document new macro.
2525         (READONLY_DATA_SECTION): Delete.
2526         (SDATA_SECTION_ASM_OP): Document new macro.
2527         (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Delete.
2528         (TARGET_ASM_INIT_SECTIONS): Document new hook.
2529         (TARGET_ASM_SELECT_SECTION, TARGET_ASM_FUNCTION_RODATA_SECTION)
2530         (TARGET_ASM_SELECT_RTX_SECTION): Adjust for new interface.
2531         (TARGET_EXCEPTION_SECTION, TARGET_EH_FRAME_SECTION): Delete.
2532
2533 2005-12-07  Alan Modra  <amodra@bigpond.net.au>
2534
2535         * gcc.c (init_gcc_specs): Match braces inside conditionally
2536         compiled strings.
2537
2538 2005-12-06  Geoffrey Keating  <geoffk@apple.com>
2539
2540         * config/darwin.h (TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT): New.
2541
2542 2005-12-06  Aldy Hernandez  <aldyh@redhat.com>
2543
2544         PR C++/24138
2545         * tree.c (integer_all_onesp): Always return true if all bits on.
2546
2547         * testsuite/g++.dg/init/array0.C: New.
2548
2549 2005-12-06  Adrian Straetling  <straetling@de.ibm.com>
2550
2551         * doc/md.texi: Adapt to implementation.
2552
2553 2005-12-06  Andreas Schwab  <schwab@suse.de>
2554
2555         * opts.c (decode_options): Fix typo in message.
2556
2557 2005-12-06  Alan Modra  <amodra@bigpond.net.au>
2558
2559         PR other/13873
2560         * longlong.h: Merge PPC tests from upstream.
2561
2562 2005-12-06  Richard Guenther  <rguenther@suse.de>
2563
2564         * fold-const.c (fold_convert): Do not build and fold
2565         CONVERT_EXPR, but always use NOP_EXPR.
2566
2567 2005-12-06  Jan Beulich  <jbeulich@novell.com>
2568
2569         * config/i386/i386.c (builtin_description): Use MASK_SSE2 for
2570         __builtin_ia32_paddq and __builtin_ia32_psubq.
2571         (ix86_init_mmx_sse_builtins): Use MASK_SSE|MASK_3DNOW_A for
2572         __builtin_ia32_pshufw.
2573         * config/i386/i386.md (mmx_adddi3, mmx_subdi3): Depend on TARGET_SSE2.
2574
2575 2005-12-05  James E Wilson  <wilson@specifix.com>
2576
2577         PR target/24934
2578         * opts.c (decode_options): Turn off partitioning if flag_unwind_tables
2579         is set.
2580
2581 2005-12-05  Daniel Berlin  <dberlin@dberlin.org>
2582         
2583         * print-tree.c (print_node): Ditto.
2584         * tree-dfa.c (add_referenced_var): Tag's don't have DECL_INITIAL.
2585         * tree-dump.c (dequeue_and_dump): Check for decl_common structure
2586         before accessing DECL_ARTIFICIAL. 
2587         Handle new tag tree codes.
2588         * tree-flow-inline.h (clear_call_clobbered): Update for tag
2589         changes.
2590         (unmodifiable_var_p): Ditto.
2591         * tree-flow.h (mem_tag_kind): Remove.
2592         (struct var_ann_d): Remove mem_tag_kind member.
2593         * tree-gimple.c (is_gimple_reg): Tags are not gimple registers.
2594         * tree-pretty-print.c (dump_generic_node): Handle memory tags.
2595         * tree-ssa-alias.c (init_alias_info): Update for memory tag changes.
2596         (group_aliases): Ditto.
2597         (setup_pointers_and_addressables): Ditto.
2598         (is_escape_site): Ditto.                                          
2599         (may_alias_p): Ditto.
2600         (create_tag_raw): New function.
2601         (create_memory_tag): Use it.
2602         (dump_alias_info): Update for tags.
2603         (may_be_aliased): Ditto.
2604         (add_type_alias): Ditto.
2605         (new_type_alias): Ditto.
2606         (create_sft): Ditto.
2607         (create_structure_vars): Ditto.
2608         * tree-ssa-ccp.c (get_default_value): Ditto.
2609         * tree-ssa-operands.c (get_expr_operands): Ditto.
2610         (add_stmt_operand): Ditto.
2611         (add_call_clobber_ops): Remove duplicated condition.
2612         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
2613         tags.
2614         * tree-tailcall.c (suitable_for_tail_opt_p): Ditto.
2615         * tree-vect-transform.c (vect_create_data_ref_ptr): Ditto.
2616         * tree.c (init_ttree): Update structures for new tree codes.
2617         (tree_code_size): Update sizes for new tree codes.
2618         (make_node_stat): Don't try to set common things on minimal
2619         structures.
2620         (tree_node_structure): Update for tags.
2621         (is_global_var): Ditto.
2622         * tree.def: Add new tree codes.
2623         * tree.h (MTAG_P): New macro.
2624         (TREE_MEMORY_TAG_CHECK): Ditto.
2625         (SSA_VAR_P): Update for tags.
2626         (struct tree_memory_tag): New structure.
2627         (MTAG_GLOBAL): New macro.
2628         (union tree_node): Add memory tag member.
2629         * treestruct.def (TS_MEMORY_TAG): New.
2630         
2631 2005-12-05  Dale Johannesen  <dalej@apple.com>
2632
2633         * config/i386/xmmintrin.h (_MM_TRANSPOSE4_PS):  Fix to match
2634         what was approved (PR 24323).
2635
2636 2005-12-05  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2637
2638         * doc/c-tree.texi (Function Bodies): Remove description of
2639         RETURN_INIT.
2640
2641 2005-12-05  Joseph S. Myers  <joseph@codesourcery.com>
2642
2643         * doc/libgcc.texi (__floatunsisf, __floatunsidf, __floatunsitf,
2644         __floatunsixf, __floatundisf, __floatundidf, __floatunditf,
2645         __floatundixf, __floatuntisf, __floatuntidf, __floatuntitf,
2646         __floatuntixf, __powisf2, __powidf2, __powixf2, __mulsc3,
2647         __muldc3, __multc3, __mulxc3, __divsc3, __divdc3, __divtc3,
2648         __divxc3): Document.
2649
2650 2005-12-05  Geoffrey Keating  <geoffk@apple.com>
2651
2652         * config/arm/arm.c (arm_cxx_determine_class_data_visibility): Preserve
2653         previous behaviour.
2654         * config/darwin.h (TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT): Define to
2655         hook_bool_void_false.
2656         (TARGET_CXX_DETERMINE_CLASS_DATA_VISIBILITY): Define.
2657         * config/darwin.c (darwin_cxx_determine_class_data_visibility): New.
2658
2659         * config/darwin.c (machopic_select_section): It's not defined
2660         as weak if it's only marked as weak_import.
2661         
2662         * config/darwin-protos.h (darwin_cxx_determine_class_data_visibility):
2663         Prototype.
2664
2665         * varasm.c (default_binds_local_p_1): Weakrefs don't bind locally.
2666         A hidden weak object does bind locally.  Strong linkonce data
2667         counts like any other strong symbol for binding.
2668         (weak_finish_1): Don't specially handle weakrefs, they no longer
2669         arrive here.
2670         (assemble_alias): Weakrefs can't be TREE_PUBLIC yet.
2671         * c-common.c (handle_alias_attribute): Allow static aliases
2672         of variables.
2673         (handle_weakref_attribute): Don't call declare_weak on weakrefs.
2674         * gthr-dce.h: Make weakrefs static.
2675         * gthr-tpf.h: Likewise.
2676         * gthr-solaris.h: Likewise.
2677         * gthr-posix.h: Likewise.
2678         * gthr-posix95.h: Likewise.
2679         * config/darwin.c (darwin_encode_section_info): static weakref
2680         variables are not necessarily defined in this translation unit.
2681         * doc/extend.texi (Function Attributes): Mention that an alias
2682         attribute creates a definition for the thing it's attached to.
2683         Change the documentation for weakref to say that the thing
2684         it's attached to must be static.
2685
2686         * config/rs6000/host-darwin.c (segv_handler): Unblock SEGV so
2687         we don't go into an infinite loop.
2688
2689 2005-12-05  Paolo Bonzini  <bonzini@gnu.org>
2690
2691         * config/rs6000/predicates.md (logical_const_operand): Split
2692         out of logical_operand.
2693         (logical_operand): Use it.
2694         * config/rs6000/rs6000.md (cmp -> xor peephole2): Use
2695         logical_const_operand.
2696
2697 2005-12-05  Jan Beulich  <jbeulich@novell.com>
2698
2699         * config/i386/i386.c (enum ix86_builtins): Remove IX86_BUILTIN_CMPNEPS
2700         and IX86_BUILTIN_CMPNESS.
2701         (ix86_init_mmx_sse_builtins): Remove ti_ftype_ti_ti.
2702         * config/i386/i386.h (ALIGN_MODE_128): Don't check TFmode explicitly.
2703         * config/i386/i386.md (movti_internal): Correct type attribute.
2704         Simplify mode attribute.
2705         (movti_rex64, movsf_1, movdf_nointeger, movdf_integer, movtf_internal):
2706         Correct type attribute.
2707         (absxf2): Correct operator.
2708         * config/i386/mmx.md (mov<mode>_internal_rex64, mov<mode>_internal,
2709         movv2sf_internal_rex64, movv2sf_internal): Correct type attribute.
2710         * config/i386/sse.md (mov<mode>_internal, movv2df_internal): Simplify
2711         mode attribute.
2712         (sse2_vmsqrtv2df2): Correct mode attribute.
2713
2714 2005-12-05  Jan Beulich  <jbeulich@novell.com>
2715
2716         * config/ia64/ia64.md (rotlsi3_internal): Don't split if rotating by
2717         16 bits. Provide insn pattern for this case.
2718
2719 2005-12-05  Jan Beulich  <jbeulich@novell.com>
2720
2721         * libgcc2.c (__popcountSI2): Don't use wide type for iterator and
2722         result.
2723         (__popcountDI2): Likewise.
2724
2725 2005-12-04  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2726
2727         PR target/25166
2728         * pa/pa.c (pa_hpux_init_libfuncs): Add _U_Qfcnvxf_usgl_to_quad and
2729         _U_Qfcnvxf_udbl_to_quad to set of initialized libfuncs.
2730         * pa/quadlib.c (_U_Qfcnvxf_usgl_to_quad, _U_Qfcnvxf_udbl_to_quad): New
2731         functions.
2732
2733 2005-12-04  Joseph S. Myers  <joseph@codesourcery.com>
2734
2735         * c-typeck.c (null_pointer_constant_p): New function.
2736         (build_conditional_expr, build_c_cast, convert_for_assignment,
2737         build_binary_op): Use it.
2738
2739 2005-12-04  Joseph S. Myers  <joseph@codesourcery.com>
2740
2741         * c-common.c (binary_op_error): Do not allow NOP_EXPR.
2742         (c_common_truthvalue_conversion): Handle NOP_EXPR the same as
2743         CONVERT_EXPR.
2744         (check_function_arguments_recurse): Allow both NOP_EXPR and
2745         CONVERT_EXPR but check conversions preserve precision.
2746         * c-typeck.c (pointer_diff): Allow both NOP_EXPR and CONVERT_EXPR
2747         but check conversions preserve precision.
2748         (build_unary_op): Don't allow NOP_EXPR.  Use gcc_unreachable () in
2749         default case.
2750
2751 2005-12-04  Roger Sayle  <roger@eyesopen.com>
2752
2753         PR c/7776
2754         * common.opt (Wstring-literal-comparison): New command line option.
2755         * c-opts.c (c_common_handle_option): Set it with -Wall.
2756         * c-typeck.c (parser_build_binary_op): Issue warning if either
2757         operand of a comparison operator is a string literal, except for
2758         testing equality or inequality against NULL.
2759
2760         * doc/invoke.texi: Document new -Wstring-literal-comparison option.
2761
2762 2005-12-03  Joseph S. Myers  <joseph@codesourcery.com>
2763
2764         * c-common.c (c_sizeof_or_alignof_type): Use fold_convert instead
2765         of building a NOP_EXPR.
2766         (c_alignof_expr): Likewise.  Handle CONVERT_EXPR the same as
2767         NOP_EXPR.
2768         * c-convert.c (convert): Use fold_convert instead of building
2769         NOP_EXPRs and CONVERT_EXPRs directly.  Don't special case
2770         c_objc_common_truthvalue_conversion returning a NOP_EXPR.  Remove
2771         #if 0 code.
2772         * c-pretty-print.c (pp_c_cast_expression, pp_c_expression): Handle
2773         NOP_EXPR the same as CONVERT_EXPR.
2774         * c-typeck.c (build_function_call): Use fold_convert instead of
2775         building a NOP_EXPR directly.
2776         (build_compound_expr): Handle NOP_EXPR the same as CONVERT_EXPR.
2777
2778 2005-12-03  Alan Modra  <amodra@bigpond.net.au>
2779
2780         PR rtl-optimization/25197
2781         * dwarf2out.c (dwarf2out_frame_debug_expr <rule 12>): Assert we
2782         have a reg.
2783
2784 2005-12-02  Stuart Hastings  <stuart@apple.com>
2785
2786         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Remove -fpic
2787         warning.
2788
2789 2005-12-03  Joseph S. Myers  <joseph@codesourcery.com>
2790
2791         * c-typeck.c (default_function_array_conversion,
2792         build_function_call): Allow for CONVERT_EXPR as well as NOP_EXPR.
2793         (build_conditional_expr): Apply integer_zerop to orig_op1 and
2794         orig_op2.  Don't check them for NOP_EXPR.
2795         (build_c_cast, convert_for_assignment): Don't check for NOP_EXPR
2796         around integer zero.
2797
2798 2005-12-03  Alan Modra  <amodra@bigpond.net.au>
2799
2800         * config/rs6000/rs6000.c (rs6000_stack_t): Remove toc_save_p,
2801         toc_save_offset, toc_size, lr_size.
2802         (rs6000_stack_info): Use memset rather than bss struct copy to init.
2803         Test rs6000_ra_ever_killed last in condition setting lr_save_p.
2804         Adjust for removal of unused rs6000_stack_t fields.
2805         (debug_stack_info): Adjust.
2806         (rs6000_ra_ever_killed): Expand FIND_REG_INC_NOTE.  Test for calls
2807         first, and don't bother checking for set/inc of lr on sibcalls.
2808         (rs6000_emit_epilogue): Tidy code restoring stack pointer.
2809
2810 2005-12-02  Jakub Jelinek  <jakub@redhat.com>
2811
2812         PR target/25199
2813         * config/i386/i386.md (movqi_1): Only force imovx for alternative
2814         5 if operand 1 is not aligned.  Undo previous constraint change.
2815         * config/i386/predicates.md (aligned_operand): Use MEM_ALIGN.
2816
2817 2005-12-02  Richard Guenther  <rguenther@suse.de>
2818
2819         * tree.h (build): Remove prototype.
2820         (build, _buildN1, _buildN2, _buildC1, _buildC2): Remove macros.
2821         * tree.c (build): Remove.
2822         (build0_stat): Update comment.
2823
2824 2005-12-02  Richard Guenther  <rguenther@suse.de>
2825
2826         * tree-ssa-loop-im.c (schedule_sm): Use buildN instead of build.
2827         * tree-complex.c (update_complex_assignment, expand_complex_div_wide):
2828         Likewise.
2829         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref,
2830         maybe_fold_offset_to_component_ref): Likewise.
2831         * tree-ssa-dom.c (thread_across_edge,
2832         simplify_rhs_and_lookup_avail_expr,
2833         find_equivalent_equality_comparison, record_equivalences_from_stmt):
2834         Likewise.
2835         * gimple-low.c (lower_function_body, lower_return_expr): Likewise.
2836         * tree-eh.c (do_return_redirection, honor_protect_cleanup_actions,
2837         lower_try_finally_switch): Likewise.
2838         * tree-if-conv.c (add_to_dst_predicate_list,
2839         replace_phi_with_cond_modify_expr, ifc_temp_var): Likewise.
2840         * gimplify.c (internal_get_tmp_var, gimple_build_eh_filter,
2841         voidify_wrapper_expr, build_stack_save_restore, gimplify_bind_expr,
2842         gimplify_return_expr, gimplify_decl_expr, gimplify_switch_expr,
2843         gimplify_case_label_expr, gimplify_exit_expr, gimplify_self_mod_expr,
2844         shortcut_cond_r, shortcut_cond_expr, gimplify_cond_expr,
2845         gimplify_init_ctor_eval, gimplify_init_constructor,
2846         gimplify_variable_sized_compare, gimplify_boolean_expr,
2847         gimplify_cleanup_point_expr, gimple_push_cleanup, gimplify_target_expr,
2848         gimplify_expr, gimplify_body, gimplify_function_tree,
2849         force_gimple_operand): Likewise.
2850         * tree-ssa-pre.c (create_expression_by_pieces): Likewise.
2851         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for,
2852         mx_register_decls): Likewise.
2853         * tree-nested.c (init_tmp_var, save_tmp_var, get_static_chain,
2854         get_frame_field, finalize_nesting_tree_1): Likewise.
2855         * tree-inline.c (setup_one_parameter): Likewise.
2856         * tree-vect-transform.c (vectorizable_condition): Likewise.
2857         * tree-outof-ssa.c (insert_copy_on_edge, insert_backedge_copies):
2858         Likewise.
2859         * tree-profile.c (tree_gen_edge_profiler): Likewise.
2860         * tree-cfg.c (factor_computed_gotos, gimplify_val): Likewise.
2861         * c-parser.c (c_parser_if_body, c_parser_switch_statement): Likewise.
2862         * tree-chrec.h (build_polynomial_chrec): Likewise.
2863
2864 2005-12-02  Richard Guenther  <rguenther@suse.de>
2865
2866         * config/alpha/alpha.c (alpha_va_start, alpha_gimplify_va_arg_1i,
2867         alpha_gimplify_va_arg): Use buildN and fold_buildN where applicable.
2868         * config/frv/frv.c (frv_expand_builtin_va_start): Likewise.
2869         * config/s390/s390.c (s390_va_start, s390_gimplify_va_arg): Likewise.
2870         * config/ia64/ia64.c (ia64_gimplify_va_arg): Likewise.
2871         * config/i386/i386.c (ix86_va_start, ix86_gimplify_va_arg): Likewise.
2872         * config/rs6000/rs6000.c (rs6000_va_start, rs6000_gimplify_va_arg):
2873         Likewise.
2874         * config/sh/sh.c (sh_va_start, sh_gimplify_va_arg_expr,
2875         sh_adjust_unroll_max): Likewise.
2876         * config/c4x/c4x.c (c4x_gimplify_va_arg_expr): Likewise.
2877         * config/pa/pa.c (hppa_gimplify_va_arg_expr): Likewise.
2878         * config/xtensa/xtensa.c (xtensa_va_start, xtensa_gimplify_va_arg_expr):
2879         Likewise.
2880         * config/stormy16/stormy16.c (xstormy16_expand_builtin_va_start):
2881         Likewise.
2882         * config/mips/mips.c (mips_va_start, mips_gimplify_va_arg_expr):
2883         Likewise.
2884
2885 2005-12-02  Richard Guenther  <rguenther@suse.de>
2886
2887         * tree-vrp.c (build_assert_expr_for, process_assert_insertions_for,
2888         simplify_cond_using_ranges): Use buildN instead of build.
2889         * tree-tailcall.c (adjust_accumulator_values,
2890         adjust_return_value): Likewise.
2891         * tree-sra.c (generate_one_element_ref, generate_copy_inout,
2892         generate_element_copy, generate_element_zero,
2893         generate_one_element_init): Likewise.
2894         * tree-ssa-forwprop.c (forward_propagate_into_cond_1): Likewise.
2895         * lambda-code.c (gcc_loop_to_lambda_loop, lbv_to_gcc_expression,
2896         lle_to_gcc_expression, lambda_loopnest_to_gcc_loopnest,
2897         perfect_nestify): Likewise.
2898
2899 2005-12-02  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2900
2901         * pa.c (pa_secondary_reload): Revise initialization of variable regno.
2902
2903 2005-12-02  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2904
2905         * ggc.h (GGC_RESIZEVEC): New.
2906
2907 2005-12-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
2908
2909         * gcc.c (execute): Improve readability.
2910
2911 2005-12-02  Richard Guenther  <rguenther@suse.de>
2912
2913         * tree-cfg.c (mark_used_vars): New function.
2914         (dump_function_to_file): Dump only used VAR_DECLs.
2915
2916 2005-12-02  Richard Guenther  <rguenther@suse.de>
2917
2918         * convert.c (convert_to_integer): Fix compare for nonpositive
2919         constant to use tree_int_cst_sgn <= 0.
2920
2921 2005-12-02  Richard Guenther  <rguenther@suse.de>
2922
2923         * convert.c (convert_to_integer): Use fold_convert instead
2924         of fold_build1 (NOP_EXPR, ...).  Use tree_int_cst_sgn < 0
2925         instead of comparing against 0.  Use build_int_cst instead
2926         of converting integer_zero_node.
2927
2928 2005-12-02  Richard Guenther  <rguenther@suse.de>
2929
2930         * tree-pretty-print.c (op_symbol): Handle LROTATE_EXPR
2931         and RROTATE_EXPR.
2932  
2933 2005-12-02  Alan Modra  <amodra@bigpond.net.au>
2934
2935         PR target/21017
2936         * combine.c (simplify_logical <IOR>): Simplify more patterns to
2937         rotates.
2938
2939 2005-12-02  Alan Modra  <amodra@bigpond.net.au>
2940
2941         PR middle-end/25176
2942         * function.c (expand_function_end): Emit blockage for unwinder
2943         after return label.
2944
2945 2005-12-01  Roger Sayle  <roger@eyesopen.com>
2946
2947         * tree.h (TREE_OVERFLOW): Make this flag/predicate specific to
2948         constant nodes, i.e. INTEGER_CST, REAL_CST, etc...
2949         * tree-vrp.c (compare_values): Only check TREE_OVERFLOW for
2950         integer constant comparisons.
2951
2952 2005-12-02  Jon Grimm  <jgrimm2@us.ibm.com>
2953             Janis Johnson  <janis187@us.ibm.com>
2954             David Edelsohn  <dje@watson.ibm.com>
2955             Ben Elliston  <bje@au.ibm.com>
2956
2957         * dfp.h, dfp.c: New files.
2958         * Makefile.in (DECNUM, DECNUMINC, LIBDECNUMBER): New variables.
2959         (DECNUM_H): Likewise.
2960         (LIBDEPS, LIBS, BACKEND): Append $(LIBDECNUMBER).
2961         (INCLUDES): Append $(DECNUMINC).
2962         (OBJS-common): Add dfp.o.
2963         (dfp.o): New rule.
2964         * real.h (EXP_BITS): Pinch one bit to ..
2965         (struct real_value): Add decimal field.
2966         (real_format): Change table size, update documentation.
2967         (REAL_MODE_FORMAT): Update for to handle float, decimal float.
2968         (real_from_string3): Declare.
2969         (decimal_single_format): Declare.
2970         (decimal_double_format): Declare.
2971         (decimal_quad_format): Declare.
2972         (REAL_VALUE_TO_TARGET_DECIMAL32): New.
2973         (REAL_VALUE_TO_TARGET_DECIMAL64): New.
2974         (REAL_VALUE_TO_TARGET_DECIMAL128): New.
2975         * real.c: Include dfp.h.
2976         (normalize): Early return for decimal floats.
2977         (do_add): Zero decimal field.
2978         (do_compare): Call do_decimal_compare for decimal floats.
2979         (do_fix_trunc): Likewise, call decimal_do_fix_trunc.
2980         (real_arithmetic): Call decimal_real_arithmetic for decimal
2981         floating point operands.
2982         (real_identical): If a and b are of differing radix, return false.
2983         (real_to_integer): Call decimal_real_to_integer if the value is a
2984         decimal float.
2985         (real_to_integer2): Likewise, call decimal_real_to_integer2.
2986         (real_to_decimal): Likewise, call decimal_real_to_decimal.
2987         (real_to_hexadecimal): Place "N/A" in the return string for
2988         decimal float.
2989         (real_from_string3): New variant, given a mode.
2990         (real_maxval): Use decimal_real_maxval for decimal floats.
2991         (round_for_format): Use decimal_round_for_format for decimals.
2992         (real_convert): Use decimal_real_convert where appropriate.
2993         (significand_size): Handle base 10.
2994         (encode_decimal_single, decode_decimal_single,
2995         encode_decimal_double, decode_decimal_double, encode_decimal_quad,
2996         decode_decimal_quad): New functions.
2997         (decimal_single_format): New.
2998         (decimal_double_format): New.
2999         (decimal_quad_format): New.
3000         * machmode.def: Add SD, DD and TD decimal floating point modes.
3001         * machmode.h (FLOAT_MODE_P, SCALAR_FLOAT_MODE_P, MODES_WIDEN_P):
3002         Include MODE_DECIMAL_FLOAT.
3003         (DECIMAL_FLOAT_MODE_P): New.
3004         * mode-classes.def (MODE_DECIMAL_FLOAT): New mode class.
3005         * genmodes.c (struct mode_data): Add counter field.
3006         (struct mode_data): Update comment for format.
3007         (blank_mode): Initialise counter field.
3008         (new_mode): Increment counter field for each mode defined.
3009         (complete_mode): Handle MODE_DECIMAL_FLOAT, update check for mode
3010         using a format.
3011         (make_complex_modes): Handle modes containing `D'.
3012         (DECIMAL_FLOAT_MODE, FRACTIONAL_DECIMAL_FLOAT_MODE): New.
3013         (make_decimal_float_mode): New.
3014         (reset_float_format): Handle MODE_DECIMAL_FLOAT.
3015         (cmp_modes): Compare counter field if other characteristics
3016         similar.
3017         (emit_real_format_for_mode): Support formats for decimal floats.
3018         * doc/rtl.texi (Machine Modes): Document SD, DD and TDmodes.
3019         Document MODE_DECIMAL_FLOAT.
3020
3021 2005-12-02  Alan Modra  <amodra@bigpond.net.au>
3022
3023         * simplify-rtx.c (simplify_plus_minus): Do simplify constants.
3024         Delete dead code.
3025
3026 2005-12-01  Richard Henderson  <rth@redhat.com>
3027
3028         * optabs.c (expand_vec_cond_expr): Use EXPAND_NORMAL.
3029
3030 2005-12-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3031
3032         * builtins.def (BUILT_IN_PUTC, BUILT_IN_PUTC_UNLOCKED): New.
3033
3034         * config/pa/pa.c (pa_init_builtins): If we detect
3035         DONT_HAVE_FPUTC_UNLOCKED, set builtin fputc_unlocked to
3036         putc_unlocked.
3037
3038 2005-12-01  Richard Guenther  <rguenther@suse.de>
3039
3040         * fold-const.c (fold_binary): Use fold_build2, not
3041         fold (build (...)).
3042
3043 2005-12-01  Nathan Sidwell  <nathan@codesourcery.com>
3044
3045         * config/ms1/ms1.c (ms1_reorg_hazard): Don't count noop moves.
3046
3047         * vec.h (VEC_block_remove): New.
3048
3049 2005-12-01  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3050
3051         PR c/13384
3052         * c-common.c (lvalue_error): Fix wording.
3053
3054 2005-12-01  Richard Guenther  <rguenther@suse.de>
3055
3056         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Fix
3057         thinko in last patch.
3058
3059 2005-12-01  Geoffrey Keating  <geoffk@apple.com>
3060
3061         * config/t-slibgcc-darwin (SHLIB_LINK): Use -single_module rather
3062         than -flat_namespace.
3063
3064 2005-12-01  Ben Elliston  <bje@au.ibm.com>
3065
3066         * mklibgcc.in: Parameterise the script to build soft float
3067         functions by iterating over each type, rather than cloning the
3068         code for each type.
3069
3070 2005-11-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3071
3072         PR middle-end/25158
3073         * builtins.c (fold_builtin_fputs): Defer check for missing
3074         replacement functions.
3075
3076 2005-11-30  Kean Johnston  <jkj@sco.com>
3077
3078         * config/i386/i386.c: Check the value of SUPPORTS_ONE_ONLY, not
3079         simply its presense in case targets #define SUPPORTS_ONE_ONLY 0.
3080
3081 2005-11-30  Richard Guenther  <rguenther@suse.de>
3082
3083         PR tree-optimization/22501
3084         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): New
3085         function split out from ...
3086         (forward_propagate_addr_expr): ... here.  Use it to propagate
3087         ADDR_EXPRs to all uses.
3088
3089 2005-11-30  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
3090
3091         * tree.h (CASE_FLT_FN, CASE_INT_FN): New macros.
3092         * builtins.c (expand_builtin_mathfn): Use them.
3093         (expand_builtin_mathfn_2): Likewise.
3094         (expand_builtin_mathfn_3): Likewise.
3095         (expand_builtin_int_roundingfn): Likewise.
3096         (expand_builtin): Likewise.
3097         (integer_valued_real_p): Likewise.
3098         (fold_builtin_int_roundingfn): Likewise.
3099         (fold_builtin_bitop): Likewise.
3100         (fold_builtin_logarithm): Likewise.
3101         (fold_builtin_1): Likewise.
3102         * convert.c (convert_to_integer): Likewise.
3103         * fold-const.c (negate_mathfn_p): Likewise.
3104         (tree_expr_nonnegative_p): Likewise.
3105
3106 2005-11-30  Dale Johannesen  <dalej@apple.com>
3107             Andrew Pinski  <pinskia@physics.uc.edu>
3108
3109         * combine.c (find_split_point):  Sign extend bitmask
3110         when changing bitfield assignment to IOR of AND.
3111
3112 2005-11-30  Nathan Sidwell  <nathan@codesourcery.com>
3113
3114         * config/ms1/ms1.md (decrement_and_branch_until_zero): Add early
3115         clobber to scratch reg.
3116         (*decrement_and_branch_until_zero_no_clobber): Remove.
3117         (decrement_and_branch peephole): Add dummy scratch reg to pattern.
3118         (mulhish3): Use TARGET_MS1_16_003, TARGET_MS2.
3119         * config/ms1/ms1.opt (mmul): Remove.
3120         * config/ms1/ms1.h (ASM_SPEC): Cope with uppercase arch names.
3121         (LINK_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Default to 16-002.
3122
3123 2005-11-30  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3124             Bernd Schmidt  <bernd.schmidt@analog.com>
3125
3126         * pa/predicates.md (symbolic_operand): Add comment.
3127         * pa/pa.md (reload_insi_r1, reload_indi_r1): New reload expanders.
3128         * pa/pa-protos.h (pa_secondary_reload_class): Delete.
3129         * pa/pa.c (TARGET_SECONDARY_RELOAD): Define.
3130         (pa_secondary_reload_class): Delete.
3131         (pa_secondary_reload): New function derived from SECONDARY_RELOAD_CLASS
3132         and pa_secondary_reload_class.  Reorder some checks.  Update inline
3133         copy of symbolic operand.
3134         * pa/pa.h (SECONDARY_RELOAD_CLASS): Delete.
3135
3136 2005-11-30  Nathan Sidwell  <nathan@codesourcery.com>
3137
3138         * loop-doloop.c (add_test): Only add jump notes if we did emit a
3139         jump.
3140
3141 2005-11-30  Jeff Law  <law@redhat.com>
3142
3143         * tree-ssa-uncprop.c (associate_equivalences_with_edges): Properly
3144         handle SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
3145
3146 2005-11-30  Jakub Jelinek  <jakub@redhat.com>
3147
3148         * config/ia64/ia64.c (ia64_expand_tls_address): Add ORIG_OP1 argument.
3149         Move ADDEND_{HI,LO} computation into TLS_MODEL_INITIAL_EXEC case.
3150         (ia64_expand_move): Adjust caller.
3151
3152         * config/ia64/ia64.c (ia64_expand_atomic_op): Only use
3153         fetchadd{4,8}.acq instruction if CODE is PLUS or MINUS, for MINUS
3154         negate VAL.
3155
3156 2005-11-30  Paolo Bonzini  <bonzini@gnu.org>
3157
3158         * simplify-rtx.c (simplify_plus_minus): Remove final parameter.
3159         Always produce an output if we can remove NEGs or canonicalize
3160         (minus (minus ...)) expressions.  Provide a fast path for the
3161         two-operand case.
3162         (simplify_gen_binary): Do not call simplify_plus_minus.
3163         (simplify_binary_operation_1): Reassociate at the end of the
3164         function.
3165
3166 2005-11-29  Evan Cheng  <evan.cheng@apple.com>
3167
3168         * config/i386/xmmintrin.h (_MM_TRANSPOSE4_PS): Rewrite using high/low
3169         moves and unpack to speed up.
3170
3171 2005-11-29  David S. Miller  <davem@sunset.davemloft.net>
3172
3173         * config/sparc/sparc.c (gen_compare_reg): Kill 2nd and 3rd
3174         argument, they are always sparc_compare_op0 and sparc_compare_op1.
3175         (gen_v9_scc): Update callers.
3176         * config/sparc/sparc.md: Likewise.
3177         * config/sparc/sparc-protos.h: Update extern declaration.
3178
3179         * tree-into-ssa.c (rewrite_into_ssa): Fix comment typo.
3180
3181 2005-11-29  Andrew Pinski  <pinskia@physics.uc.edu>
3182
3183         * fold-const.c (negate_expr) <case BIT_NOT_EXPR>: Add break after
3184         the if.
3185
3186 2005-11-29  Andrew Pinski  <pinskia@physics.uc.edu>
3187
3188         * fold-const.c (negate_expr_p): Return true for BIT_NOT_EXPR.
3189         (fold_unary) <case NEGATE_EXPR>: Move -(~a) transformation to ...
3190         (negate_expr): Here.
3191
3192 2005-11-29  Ben Elliston  <bje@au.ibm.com>
3193
3194         * config/i386/i386.h (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN):
3195         Fix typo in comment.
3196
3197 2005-11-29  Ben Elliston  <bje@au.ibm.com>
3198
3199         * Makefile.in (clean-target): Depend on clean-target-libgcc.
3200         (clean-target-libgcc): Import rule from the top-level Makefile.in.
3201
3202 2005-11-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3203
3204         PR middle-end/20109
3205         PR middle-end/25120
3206         * builtins.c (init_target_chars): New.
3207         (expand_builtin_printf, expand_builtin_fprintf,
3208         expand_builtin_sprintf, fold_builtin_sprintf,
3209         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
3210         fold_builtin_snprintf_chk, fold_builtin_printf,
3211         fold_builtin_fprintf): Check for matching format strings using
3212         the target charset.
3213
3214 2005-11-29  Paul Brook  <paul@codesourcery.com>
3215
3216         * config.gcc: Do not use fixproto on m68k-elf.
3217
3218 2005-11-28  Roger Sayle  <roger@eyesopen.com>
3219
3220         * expmed.c (div_cost): Replace with...
3221         (sdiv_cost, udiv_cost): New.
3222         (init_expmed): Initialize sdiv_cost and udiv_cost, not div_cost.
3223         Rename the div and mod fields, used to initialize sdiv_pow2_cheap
3224         and smod_pow2_cheap, to sdiv_32 and smod_32 to avoid confusion.
3225         (expand_divmod): Replace use of div_cost with either sdiv_cost
3226         or udiv_cost depending upon the signedness of the operation.
3227
3228 2005-11-28  Alexandre Oliva  <aoliva@redhat.com>
3229
3230         PR libfortran/24991
3231         * config/darwin.c (machopic_indirection_name,
3232         machopic_output_indirection): Follow transparent alias chain.
3233
3234 2005-11-28  Alexandre Oliva  <aoliva@redhat.com>
3235
3236         * varasm.c (ultimate_transparent_alias_target): Add comment.
3237
3238 2005-11-28  Kazu Hirata  <kazu@codesourcery.com>
3239
3240         * config/m68k/m68k.c (notice_update_cc): Use SET_DEST and
3241         SET_SRC instead of XEXP where appropriate.
3242
3243 2005-11-28  Joseph S. Myers  <joseph@codesourcery.com>
3244
3245         * config/fp-bit.c (isnan, isinf, pack_d, unpack_d): Use
3246         __builtin_expect.
3247
3248 2005-11-28  Joseph S. Myers  <joseph@codesourcery.com>
3249
3250         * config/fp-bit.h (LSHIFT): Take shift count parameter.
3251         * config/fp-bit.c (_fpadd_parts): Shift in one go instead of one
3252         bit at a time.
3253
3254 2005-11-28  Bernd Schmidt  <bernd.schmidt@analog.com>
3255
3256         * config/bfin/bfin.c (bfin_secondary_reload): Renamed from
3257         secondary_input_reload_class, made static.  Adapt to new
3258         infrastructure.
3259         (secondary_output_reload_class): Delete.
3260         (TARGET_SECONDARY_RELOAD): New macro.
3261         * config/bfin/bfin.h (SECONDARY_INPUT_RELOAD_CLASS,
3262         SECONDARY_OUTPUT_RELOAD_CLASS): Delete.
3263
3264 2005-11-28  Nathan Sidwell  <nathan@codesourcery.com>
3265
3266         PR c++/21166
3267         * c-decl.c (finish_struct):  Only set DECL_PACKED on a field
3268         when its natural alignment is > BITS_PER_UNIT.
3269         * stor-layout.c (finalize_type_size): Revert my patch of 2005-08-08.
3270         * c-common.c (handle_packed_attribute): Ignore packing on a field
3271         whose type is naturally char aligned.
3272
3273 2005-11-28  Richard Guenther  <rguenther@suse.de>
3274
3275         * c-common.c (strict_aliasing_warning): Handle all
3276         component-ref like accesses.
3277
3278 2005-11-28  Roger Sayle  <roger@eyesopen.com>
3279             Uros Bizjak  <uros@kss-loka.si>
3280
3281         PR middle-end/20219
3282         * fold-const.c (fold binary) <RDIV_EXPR>: Optimize
3283         sin(x)/tan(x) as cos(x) and tan(x)/sin(x) as 1.0/cos(x)
3284         when flag_unsafe_math_optimizations is set and
3285         we don't care about NaNs or Infinities.
3286
3287         Move x/expN(y) and x/pow(y,z) transformation into common
3288         flag_unsafe_math_optimizations section.
3289
3290 2005-11-27  Mark Mitchell  <mark@codesourcery.com>
3291
3292         * gcc.c (main): Change type of argv to "char **".
3293
3294 2005-11-28  Alan Modra  <amodra@bigpond.net.au>
3295
3296         * doc/invoke.texi (powerpc msdata-data): Static data doesn't go in
3297         small data sections.
3298         * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Make global.
3299         * config/rs6000/rs6000-protos.h: (rs6000_elf_in_small_data_p): Declare.
3300         * config/rs6000/sysv4.h (ASM_OUTPUT_ALIGNED_LOCAL): Rename to..
3301         (ASM_OUTPUT_ALIGNED_DECL_LOCAL): ..this, adding extra parm.  Don't
3302         output locals to sbss if !rs6000_elf_in_small_data_p.
3303         (ASM_OUTPUT_ALIGNED_BSS): Adjust for above.
3304
3305 2005-11-28  Alan Modra  <amodra@bigpond.net.au>
3306
3307         PR target/24997
3308         * config/rs6000/rs6000.c (legitimate_indexed_address_p): Allow pattern
3309         generated by reload.
3310         * config/rs6000/predicates.md (indexed_or_indirect_operand): Use
3311         indexed_or_indirect_address.
3312         (indexed_or_indirect_address): Don't test for base reg.  Call
3313         address_operand last.  Make it a special predicate.
3314
3315 2005-11-27  Kazu Hirata  <kazu@codesourcery.com>
3316
3317         * config/m68k/m68k.c (notice_update_cc): Remove useless code.
3318
3319 2005-11-27  Andrew Pinski  <pinskia@physics.uc.edu>
3320
3321         PR middle-end/24575
3322         * fold-const.c (negate_expr_p): Add case for signed divides if overflow
3323         is undefined.
3324         (negate_expr): Likewise.
3325
3326 2005-11-27  Andreas Schwab  <schwab@suse.de>
3327
3328         * config/m68k/m68k.c: Reindent and fix whitespace, remove
3329         redundant parens.
3330
3331 2005-11-27  Steven Bosscher  <stevenb@suse.de>
3332
3333         * cfgcleanup.c (try_crossjump_to_edge): Always split SRC2 if it
3334         has EH predecessor edges.