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* tree.h (TREE_CONSTANT_OVERFLOW): Obsolete. For the time being,
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-01-11  Roger Sayle  <roger@eyesopen.com>
2
3         * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
4         treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.
5
6 2007-01-11  Paolo Bonzini  <bonzini@gnu.org>
7
8         * configure.ac (strict1_warn): Rename to strict_warn.
9         (WERROR, --enable-werror, symlink hacks, stage1_cflags,
10         cc_set_by_configure, quoted_cc_set_by_configure,
11         stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
12         all_boot_languages, all_stagestuff): Remove.
13         (target_list): Remove bootstrap targets.
14         * Makefile.in (quickstrap): Unconditionally make a synonym of all.
15         (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
16         REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
17         SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
18         VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
19         STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
20         stage1_copy, stage2_build, stage2_copy, stageprofile_build,
21         stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
22         stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
23         bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
24         bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
25         unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
26         restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
27         cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
28         *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
29         stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
30         stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
31         risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
32         (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
33         (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
34         (mostlyclean): Adjust.
35         (clean, distclean): Don't mention bootstrap stuff.
36         * configure: Regenerate.
37         * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
38         java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
39         treelang/config-lang.in (stagestuff): Remove.
40         * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
41         stageprofile, stagefeedback, stagestuff): Remove mention.
42
43 2007-01-11  Nick Clifton  <nickc@redhat.com>
44
45         * config/mcore/predicates.md (mcore_general_movesrc_operand):
46         Accept CONSTs.
47         (mcore_general_movdst_operand): Do not accept CONST_INTs.
48         (mcore_arith_K_S_operand): Run the test for the S constraint not
49         the test for the M constraint.
50         (mcore_addsub_operand): Do not accept integer values that are
51         larger than 32 bits.
52         * config/mcore/mcore.md: Remove unused constraints from split.
53         (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
54         (addsi3): Likewise.
55         (allocate_stack): Likewise.
56         * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
57         operands to 32 bits.
58         (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
59         INTVAL.
60         (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
61         mcore_const_ok_for_inline, mcore_const_trick_uses_not,
62         try_constant_tricks, mcore_num_ones, mcore_num_zeros,
63         mcore_output_bclri, mcore_output_andn, output_inline_const,
64         mcore_output_move, mcore_output_movedouble): Likewise.
65         (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
66         (output_inline_const): Likewise.
67         (output_inline_const): Fix format strings used in sprintf
68         statements.
69         * config/mcore/mcore-protos.h: Update prototypes for changed
70         functions in mcore.c.
71         * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
72         HOST_WIDE_INT and not int.
73         (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
74         CONST_OK_FOR_N): Likewise.
75         (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
76         (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
77         an INTVAL.
78
79 2007-01-10  Jan Hubicka  <jh@suse.cz>
80
81         * tree-vrp.c (remove_range_assertions): Release defs.
82         * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
83         * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.
84
85 2007-01-10  Paul Brook  <paul@codesourcery.com>
86
87         * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
88         * config/arm/arm.md (mulsi3subsi): New insn.
89
90 2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>
91
92         * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
93         (tree_transform_and_unroll_loop): New.
94         * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
95         Declare.
96
97 2007-01-10  Robert Kennedy <jimbob@google.com>
98
99         * fold-const.c (fold_comparison): Fold comparisons like (x *
100         1000 < 0) to (x < 0).
101
102 2007-01-10  Ian Lance Taylor  <iant@google.com>
103
104         * tree-pretty-print.c (dump_generic_node): Print parentheses when
105         operands have the same priority.
106
107 2007-01-10  Tom Tromey  <tromey@redhat.com>
108
109         * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
110         (fold_binary): Likewise.
111         * langhooks.c (lhd_can_use_bit_fields_p): Removed.
112         * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
113         (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
114         (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
115         * langhooks.h (struct lang_hooks): Removed field
116         'can_use_bit_fields_p'.
117
118 2007-01-10  Ralf Cors├ępius <ralf.corsepius@rtems.org>
119
120         * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.
121
122 2007-01-10  Razya Ladelsky  <razya@il.ibm.com>
123
124         * function.c (get_last_funcdef_no): New function.
125         * function.h (get_last_funcdef_no): Declare. 
126         * tree-inline.c (initialize_cfun): Add initialization.
127         (tree_function_versioning): Cleanup.
128         
129 2007-01-10  Jan Hubicka  <jh@suse.cz>
130
131         * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
132         PHIs.
133
134 2007-01-10  Sa Liu  <saliu@de.ibm.com>
135             Ben Elliston  <bje@au.ibm.com>
136
137         * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
138         for SAVE_NONLOCAL and Pmode for any other save level.
139         * spu-protos.h (spu_restore_stack_block): Declare.
140         * spu.md (save_stack_block): Remove.
141         (restore_stack_block): Call spu_restore_stack_block.
142         * spu.c (spu_restore_stack_block): New function.
143         (spu_expand_epilogue): Remove old comment.
144
145 2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>
146
147         PR tree-optimization/30322
148         * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
149         (cand_value_at): Return the value as aff_tree.
150         (may_eliminate_iv): Convert the bound from aff_tree to tree.
151         * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
152         aff_combination_mult): New functions.
153         (aff_combination_add): Use aff_combination_add_cst.
154         (aff_combination_convert): Allow conversions to a wider type.
155         (tree_to_aff_combination): Handle BIT_NOT_EXPR.
156         * tree-affine.h (aff_combination_mult): Declare.
157
158 2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>
159
160         * doc/tm.texi: Update documentation to reflect reality of exec
161         and start file search behaviours. Update copyright year.
162         * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
163         header file directories.
164
165 2007-01-09  Uros Bizjak  <ubizjak@gmail.com>
166
167         * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
168         (*cosxf2): Rename to cosxf2_i387.
169
170         (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
171         using X87MODEF12 mode macro. Rename patterns to
172         *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
173         for SSE math.
174         (*cosdf2, *cossf2): Ditto.
175         (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
176         to match extended input operands.
177
178         (sincos<mode>3): New expander.
179
180         (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
181         insn patterns and corresponding splitters.
182
183 2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>
184
185         * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
186         (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.
187
188 2007-01-09  Nicolas Pitre  <nico@cam.org>
189
190         PR target/30173
191         * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.
192
193 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
194
195         * target.h (struct gcc_target): New field library_rtti_comdat.
196         * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
197         (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
198         * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
199         * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.
200
201 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
202
203         * doc/invoke.texi (Optimize Options): Correct description of -O0.
204
205 2007-01-08  Richard Guenther  <rguenther@suse.de>
206
207         * tree.h (force_fit_type_double): Export.
208         (force_fit_type): Remove.
209         * fold-const.c (force_fit_type_double): New function.
210         (force_fit_type): Remove.
211         (int_const_binop): Use it.
212         (fold_convert_const_int_from_int): Likewise.
213         (fold_convert_const_int_from_real): Likewise.
214         (fold_div_compare): Likewise.
215         (fold_sign_changed_comparison): Likewise.
216         (fold_unary): Likewise.
217         (fold_negate_const): Likewise.
218         (fold_abs_const): Likewise. 
219         (fold_not_const): Likewise.
220         * c-common.c (shorten_compare): Use force_fit_type_double.
221         * convert.c (convert_to_pointer): Likewise.
222
223 2007-01-08  Richard Guenther  <rguenther@suse.de>
224
225         * tree.h (build_int_cst_wide_type): Export.
226         * tree.c (build_int_cst_wide_type): New function.
227         (build_int_cst_wide): Fix comment.
228         * builtins.c (fold_builtin_object_size): Use build_int_cst
229         to build -1 or 0 of the correct type.  Use fit_double_type
230         to check for overflow.
231         * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
232         to build the mask.
233         (decode_field_reference): Likewise.
234         (all_ones_mask_p): Likewise.
235         (native_interpret_int): Use build_int_cst_wide_type.
236         (fold_binary): Use build_int_cst_type to build an all-ones
237         value.
238         * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.
239
240 2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>
241
242         * config/pa/t-pa64 (libgcc_stub.a): Use $(T).
243
244 2007-01-09  Ben Elliston  <bje@au.ibm.com>
245
246         * genautomata.c (STATS_OPTION): New option.
247         (stats_flag): New flag.
248         (gen_automata_option): Handle it.
249         (initiate_automaton_gen): Ditto.
250         (write_automata): Output statistics only if stats_flag is
251         set. Likewise, output time statistics only if time_flag is set.
252         * doc/md.texi (Processor pipeline description): Document new flag.
253
254 2007-01-08  Richard Guenther  <rguenther@suse.de>
255
256         * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
257         * tree.c (build_int_cst_type): Likewise.
258         (size_in_bytes): Don't call force_fit_type on the result.
259         (int_fits_type_p): Use fit_double_type.
260         * fold-const.c (fit_double_type): New function.
261         (force_fit_type): Use it.
262         * tree.h (fit_double_type): Export.
263
264 2007-01-08  Jan Hubicka  <jh@suse.cz>
265
266         * tree-vectorizer.c (gate_increase_alignment): Fix return type.
267         * ipa.c (function_and_variable_visibility): Fix return type.
268
269 2007-01-08  Richard Guenther  <rguenther@suse.de>
270
271         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
272         of offset to build the index.
273         * tree-pretty-print.c (dump_generic_node): Don't build negated
274         const just for printing.
275         * c-pretty-print.c (pp_c_integer_constant): Likewise.
276         * builtins.c (fold_builtin_int_roundingfn): Check if result
277         fits the type by using force_fit_type and comparing the result.
278         * predict.c (predict_loops): Use compare_tree_int for comparison.
279         * tree.c (build_int_cst): Fall back to integer_type_node for
280         NULL_TREE type.
281         (build_int_cst_wide): Assert type is non-null.
282
283 2007-01-08  Roberto Costa  <roberto.costa@st.com>
284
285         * tree-vrp.c (extract_range_from_cond_expr): New.
286         (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
287         * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
288         as expressions.
289         (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
290         * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
291         tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
292         used as expressions.
293         * tree-object-size.c (cond_expr_object_size): New.
294         (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.
295
296 2007-01-08  Jan Hubicka  <jh@suse.cz>
297
298         * tree-ssa-forwprop.c (forward_propagate_into_cond,
299         tree_ssa_forward_propagate_single_use_va): Release defs of propagated
300         statement.
301
302 2007-01-08  Richard Guenther  <rguenther@suse.de>
303
304         PR tree-optimization/23603
305         * tree-vrp.c (set_value_range_to_truthvalue): New function.
306         (extract_range_from_binary): Fall back to truthvalue instead of
307         varying for TRUTH_*_EXPR.
308         (extract_range_from_comparison): Fall back to truthvalue instead of
309         varying.
310         (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
311         if all visited PHI values were constant.
312
313 2007-01-08  Jan Hubicka  <jh@suse.cz>
314
315         * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
316         (cgraph_analyze_function): break out from ...
317         (cgraph_finalize_compilation_unit): ... here.
318         (cgraph_expand_function): Remove forgoten commented out line.
319         (cgraph_optimize): Analyze functions.
320
321 2007-01-08  Jan Hubicka  <jh@suse.cz>
322
323         * tree-pas.h (TODO_remove_function): New flag.
324         (TODO_update*): Renumber.
325         (pass_ipa_increase_alignment,
326         pass_ipa_function_and_variable_visibility): New passes.
327         * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
328         (cgraph_function_and_variable_visibility): Move to ipa.c
329         (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
330         cgraph_increase_alignment.
331         * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
332         (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
333         calling tree-inline.
334         (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
335         (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
336         * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
337         (gate_increase_alignment): New function.
338         (pass_ipa_increase_alignment): New pass.
339         * ipa.c: Inline tree-pass.h and timevar.h
340         (function_and_variable_visibility): Move here from cgraphunit.c
341         * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
342         * passes.c (init_optimization_passes): Add the two new passes.
343         (execute_todo): Handle cgraph_remove_functions.
344
345 2007-01-08  Nick Clifton  <nickc@redhat.com>
346
347         * config/frv/predicates.md (reg_or_0_operand): Accept
348         CONST_DOUBLEs.
349
350 2007-01-08  Ralf Cors├ępius <ralf.corsepius@rtems.org>
351
352         * config/bfin/rtems.h, config/bfin/t-rtems: New.
353         * config.gcc: Add bfin*-rtems*.
354
355 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
356
357         * c.opt: Add -flax-vector-conversions.
358         * c-typeck.c (convert_for_assignment): Pass flag to
359         vector_types_convertible_p to allow emission of note.
360         (digest_init): Likewise.
361         * c-opts.c: Handle -flax-vector-conversions.
362         * c-common.c (flag_lax_vector_conversions): New.
363         (vector_types_convertible_p): Unless -flax-vector conversions
364         has been passed, disallow conversions between vectors with
365         differing numbers of subparts and/or element types.  If such
366         a conversion is disallowed, possibly emit a note on the first
367         occasion only to inform the user of -flax-vector-conversions.
368         The new last argument specifies this.
369         * c-common.h (flag_lax_vector_conversions): New.
370         (vector_types_convertible_p): Add extra argument.
371         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
372         char_type_node for V*QI type vectors.
373         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
374         Update to satisfy new typechecking rules.
375         * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
376         C and C++ variants.
377         * doc/invoke.texi (C Dialect Options): Document
378         -flax-vector-conversions.
379
380 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
381
382         PR tree-optimization/29877
383         * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
384         a register variable on the RHS to not be replaceable.
385
386 2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
387         * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
388         * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
389         const_simm15, const_pow2, const_npow2): Added.
390         * config/score/misc.md (insv, extv, extzv, movmemsi, 
391         move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
392         * config/score/score.c (score_address_cost, score_select_cc_mode): 
393         Added.
394         Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
395         Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
396         Update score_print_operand.
397         * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
398         Adjust register allocate order and update some macro define.
399         * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
400         mdx_block_move_straight, mdx_block_move_loop_head,
401         mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
402         mdx_block_move): Added.
403         (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
404         mdp_limm): Updated and fix some bug and typo.
405         * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
406         (movsf, movdf, doloop_end): Added.
407
408 2007-01-08  Kazu Hirata  <kazu@codesourcery.com>
409
410         * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
411         config/arm/thumb2.md: Fix comment typos.
412         * doc/extend.texi: Fix a typo.
413
414 2007-01-07  Eric Christopher  <echristo@apple.com>
415
416         * configure.ac: Check for __stack_chk_fail for darwin.
417         * configure: Regenerate.
418
419 2007-01-07  Richard Guenther  <rguenther@suse.de>
420
421         * tree-vrp.c (extract_range_from_assert): CSE calls to
422         compare_values where possible.
423         (extract_range_from_unary_expr): Likewise.
424
425 2007-01-07  Anatoly Sokolov <aesok@post.ru>
426
427         * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
428         * config/avr/avr.c (call_insn_operand): Delete function.
429         * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
430         instead of register number. Use predicates.
431         * config/avr/predicates.md (const0_operand, reg_or_0_operand,
432         call_insn_operand): Add.
433
434 2007-01-06  Jan Hubicka  <jh@suse.cz>
435
436         * tree-pass.h (pass_build_cgraph_edges): Declare.
437         * cgraphunit.c (record_refernece): Move to cgraphbuild.c
438         (visited_nodes): Remove.
439         (cgraph_create_edges): Move to cgraphbuild.c; rename to
440         build_cgrpah_edges; make visited_nodes local.
441         (cgraph_process_new_functions): DO not call initialize_inline_failed.
442         (record_references_in_initializer): Move to cgraphbuild.c
443         (initialize_inline_failed, rebuild_cgraph_edges,
444         pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
445         (verify_cgraph_node): Make visited_nodes local.
446         (cgraph_analyze_function): Do not call cgraph_create_edges and
447         initialize_inline_failed.
448         (cgraph_expand_function): Do not call cgraph_lower_function;
449         assert that function is already lowered.
450         * Makefile.in (cgraphbuild.o): New.
451         * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
452         at the end of lowering passes.
453
454 2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>
455
456         * ifcvt.c (cond_move_convert_if_block): New function, code
457         factored out from...
458         (cond_move_process_if_block): ...here.  Call the new function
459         on the THEN and ELSE blocks.
460         (merge_if_block): Do not copy global_live_at_end, merge_blocks
461         already takes care of this.
462
463 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
464
465         PR c/19978
466         * tree.h (TREE_OVERFLOW_P): New.
467         * c-typeck.c (parser_build_unary_op): Warn only if result
468         overflowed and operands did not.
469         (parser_build_binary_op): Likewise.
470         (convert_for_assignment): Remove redundant overflow_warning.
471         * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.
472
473 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
474
475         * c-typeck.c (store_init_value): Split over two lines to follow
476         the GNU coding style.
477
478 2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>
479
480         * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
481         __GXX_EXPERIMENTAL_CXX0X__.
482         * doc/cpp.texi: Same.
483
484 2007-01-05  Richard Guenther  <rguenther@suse.de>
485
486         PR middle-end/27826
487         * tree.c (get_narrower): Do not construct COMPONENT_REFs
488         with mismatched types.  Instead explicitly build a
489         conversion NOP_EXPR.
490
491 2007-01-05  Ian Lance Taylor  <iant@google.com>
492
493         * c-common.c (decl_with_nonnull_addr_p): New function.
494         (c_common_truthvalue_conversion): Call it.
495         * c-typeck.c (build_binary_op): Likewise.
496         * c-common.h (decl_with_nonnull_addr_p): Declare.
497
498 2007-01-05  Jakub Jelinek  <jakub@redhat.com>
499
500         PR c/30360
501         * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
502         denom against 0.0.
503
504 2007-01-05  Joel Brobecker  <brobecker@adacore.com>
505
506         * doc/install.texi (Final install): Document the fact that
507         the GNAT runtime should not be stripped.
508
509 2007-01-04  Jan Hubicka  <jh@suse.cz>
510
511         * tree-inline.c (fold_marked_statements): Update operand caches
512         and EH after folding
513
514 2007-01-04  Ian Lance Taylor  <iant@google.com>
515
516         * c-common.c (check_function_nonnull): Whitespace fix.
517
518 2007-01-04  Jan Hubicka  <jh@suse.cz>
519
520         * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
521         comitted older version of patch.
522         (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
523         function, celanup cfg and collect garbage.
524
525 2007-01-04  Mike Stump  <mrs@apple.com>
526
527         * Makefile.in (mostlyclean): Don't remove libgcc anymore.
528         (clean): Likewise.
529
530 2007-01-04  Eric Christopher  <echristo@apple.com>
531
532         * libgcc2.c (__bswapsi2): Use SItype.
533         (__bswapdi2): Use DItype.
534         * libgcc2.h: Update for above.
535
536 2007-01-04  Paul Brook  <paul@codesourcery.com>
537
538         * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
539         mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
540         mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
541         umulsidi3, umulsidi3adddi, smulsi3_highpart,
542         umulsi3_highpart): Make conditional on !arm_arch6.
543         (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
544         mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
545         mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
546         umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
547         umulsi3_highpart_v6): New insns.
548
549 2007-01-04  Roger Sayle  <roger@eyesopen.com>
550
551         * fold-const.c (fold_convert): When casting an expression to void,
552         fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
553         have a type.  Instead of attempting to build a NOP_EXPR, return
554         these "special" trees directly.
555
556 2007-01-04  Joseph Myers  <joseph@codesourcery.com>
557
558         * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
559         MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
560         rs6000_cost->fp not 0 as adjustment for outer NEG.
561
562 2007-01-04  Jan Hubicka  <jh@suse.cz>
563
564         * cgraph.c (cgraph_release_function_body): New function.
565         (cgraph_remove_node): Use it.
566         * cgraph.h (cgraph_release_function_body): Declare.
567         * cgraphunit.c (cgraph_expand_function): Use it.
568         * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
569         * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
570         is initialized and while compilation of other function is running.
571         * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
572         statement CFG annotations from here to ...
573         * tree-cfg.c (delete_tree_cfg_annotations): ... here.
574
575 2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>
576
577         * cfgloop.h (enum li_flags): Make the constants powers of two.
578
579 2007-01-04  Jan Hubicka  <jh@suse.cz>
580
581         * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
582         set.
583         (fold_marked_statements): New function.
584         (optimize_inline_calls, tree_function_versioning): Fold new statements.
585         * tree-inline.h (copy_body_data): Add statements_to_fold.
586
587 2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>
588
589         * config.gcc: Mention libgcc/config.host.
590         * Makefile.in: Update comments mentioning libgcc.
591         (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
592         (all.cross, start.encap, rest.encap, rest.cross): Update
593         dependencies for libgcc move.
594         (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
595         (clean-target, clean-target-libgcc): Delete.
596         (srcdirify, GCC_EXTRA_PARTS): New macros.
597         (libgcc-support, libgcc.mvars): New rules.
598         (distclean): Remove mention of mklibgcc.
599         (install): Don't reference INSTALL_LIBGCC.
600         (install-common): Don't reference EXTRA_PARTS.
601         (install-libgcc, install-multilib): Delete rules.
602         * mklibgcc.in: Delete file.
603         * doc/configfiles.texi: Don't mention mklibgcc.
604
605         * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
606         * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
607         * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
608         * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
609         (mklibgcc, ldblspecs): Likewise.
610
611         * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
612         (posixpre.def): Use $(T).
613         (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
614         (SHLIB_SRC, SHLIB_INSTALL): Delete.
615         (SHLIB_LINK): Make dummy.
616         * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
617
618         * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
619
620         * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
621         * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
622         config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
623         config/rs6000/t-newas, config/sparc/t-elf: Likewise.
624
625         * configure.ac (all_outputs): Remove mklibgcc.
626         * configure: Regenerated.
627
628 2007-01-03  Josh Conner  <jconner@apple.com>
629
630         PR middle-end/29683
631         * calls.c (compute_argument_addresses): Set stack and stack_slot
632         for partial args, too.
633         (store_one_arg): Use locate.size.constant for the size when
634         generating a save_area.
635
636 2007-01-03  Robert Kennedy <jimbob@google.com>
637
638         * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
639         whose definitions are deleted due to basic block merging.
640
641 2007-01-03  Paul Brook  <paul@codesourcery.com>
642
643         PR target/16634
644         * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
645         functions.
646         (use_return_insn): Return 0 for Thumb interrupt functions.
647         (print_multi_reg): Add rfe argument for IRQ returns.
648         (arm_output_epilogue): Pop interrupt return address directly into PC.
649         (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
650
651 2007-01-03  Paul Brook  <paul@codesourcery.com>
652
653         Merge from sourcerygxx-4_1.
654         * config/arm/thumb2.md: New file.
655         * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
656         Thumb-2.
657         * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
658         * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
659         (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
660         * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
661         tables.
662         (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
663         * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
664         comptibility.
665         * config/arm/ieee754-sf.S: Ditto.
666         * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
667         (thumb1_base_register_rtx_p): ... to this.
668         (thumb_index_register_rtx_p): Rename...
669         (thumb1_index_register_rtx_p): ... to this.
670         (thumb_output_function_prologue): Rename...
671         (thumb1_output_function_prologue): ... to this.
672         (thumb_legitimate_address_p): Rename...
673         (thumb1_legitimate_address_p): ... to this.
674         (thumb_rtx_costs): Rename...
675         (thumb1_rtx_costs): ... to this.
676         (thumb_compute_save_reg_mask): Rename...
677         (thumb1_compute_save_reg_mask): ... to this.
678         (thumb_final_prescan_insn): Rename...
679         (thumb1_final_prescan_insn): ... to this.
680         (thumb_expand_epilogue): Rename...
681         (thumb1_expand_epilogue): ... to this.
682         (arm_unwind_emit_stm): Rename...
683         (arm_unwind_emit_sequence): ... to this.
684         (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
685         thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
686         thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
687         arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
688         thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
689         thumb2_output_casesi): New functions.
690         (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
691         (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
692         FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
693         THUMB2_WORK_REGS): Define.
694         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
695         arm_condexec_mask, arm_condexec_masklen)): New variables.
696         (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
697         (arm_override_options): Check new CPU capabilities.
698         Set new architecture flag variables.
699         (arm_isr_value): Handle v7m interrupt functions.
700         (user_return_insn): Return 0 for v7m interrupt functions.  Handle
701         Thumb-2.
702         (const_ok_for_arm): Handle Thumb-2 constants.
703         (arm_gen_constant): Ditto.  Use movw when available.
704         (arm_function_ok_for_sibcall): Return false for v7m interrupt
705         functions.
706         (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
707         (thumb_find_work_register, arm_load_pic_register,
708         legitimize_tls_address, arm_address_cost, load_multiple_sequence,
709         emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
710         print_multi_reg, output_mov_long_double_fpa_from_arm,
711         output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
712         output_mov_double_fpa_from_arm, output_move_double,
713         arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
714         output_return_instruction, arm_output_function_prologue,
715         arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
716         arm_output_mi_thunk, thumb_set_return_address): Ditto.
717         (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
718         (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
719         (arithmetic_instr, shift_op): Use arm_shift_nmem.
720         (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
721         '!' and 'L'.
722         (arm_final_prescan_insn): Use extract_constrain_insn_cached.
723         (thumb_expand_prologue): Use thumb_set_frame_pointer.
724         (arm_file_start): Output directive for unified syntax.
725         (arm_unwind_emit_set): Handle stack alignment instruction.
726         * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
727         Add v6t2, v7, v7a, v7r and v7m.
728         (RETLDM): Add Thumb-2 code.
729         (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
730         * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
731         (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
732         TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
733         THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
734         ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
735         THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
736         CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
737         ADJUST_INSN_LENGTH): Define.
738         (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
739         STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
740         BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
741         PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
742         SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
743         TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
744         HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
745         HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
746         REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
747         REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
748         LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
749         GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
750         ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
751         FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
752         PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
753         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
754         * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
755         cortex-m3.
756         * config/arm/arm-tune.md: Regenerate.
757         * config/arm/arm-protos.h: Update prototypes.
758         * config/arm/vfp.md: Enable patterns for Thumb-2.
759         (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
760         (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
761         (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
762         thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
763         * config/arm/libunwind.S: Add Thumb-2 code.
764         * config/arm/constraints.md: Update include Thumb-2.
765         * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
766         * config/arm/ieee754-df.S: Ditto.
767         * config/arm/bpabi.S: Ditto.
768         * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
769         * config/arm/predicates.md (low_register_operand,
770         low_reg_or_int_operand, thumb_16bit_operator): New.
771         (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
772         (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
773         * config/arm/t-arm-elf: Add armv7 multilib.
774         * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
775         Include thumb2.md.
776         (UNSPEC_STACK_ALIGN, ce_count): New.
777         (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
778         arm_zero_extendsidi2, arm_zero_extendqidi2): New
779         insns/expanders.
780         * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
781         (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
782         thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
783         * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
784         (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
785         thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
786         insns.
787         * doc/extend.texi: Document ARMv7-M interrupt functions.
788         * doc/invoke.texi: Document Thumb-2 new cores+architectures.
789
790 2007-01-03  Jakub Jelinek  <jakub@redhat.com>
791
792         * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
793         (struct _Unwind_Context): Rename args_size to flags, remove
794         signal_frame field, add a new args_size field and version field.
795         (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
796         _Unwind_IsExtendedContext): New inline functions.
797         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
798         Assume by_value array is only present if _Unwind_IsExtendedContext.
799         (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
800         _Unwind_IsSignalFrame.
801         (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
802         (uw_update_context_1): Use _Unwind_SetSignalFrame.
803         (uw_init_context_1): Initialize context->flags to
804         EXTENDED_CONTEXT_BIT.
805         * config/rs6000/linux-unwind.h (frob_update_context): Use
806         _Unwind_SetSignalFrame.
807
808 2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
809
810         PR middle-end/30353
811         * gimplify.c (gimplify_modify_expr_complex_part): Move below
812         tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
813         the value.
814
815 2007-01-03  Kazu Hirata  <kazu@codesourcery.com>
816
817         * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
818         REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
819         RET, AT_SP): Remove.
820         * config/i386/i386.md (*sse_prologue_save_insn): Use return
821         instead of RET.
822
823         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
824         * cfgbuild.c (find_basic_blocks): Likewise.
825         * cfgrtl.c (rtl_create_basic_block): Likewise.
826         * function.c (temp_slots_at_level): Likewise.
827         * reg-stack.c (stack_regs_mentioned): Likewise.
828         * regclass.c (allocate_reg_info): Likewise.
829         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
830         set_bb_for_stmt, move_block_to_fn): Likewise.
831         * tree-complex.c (tree_lower_complex): Likewise.
832         * vec.h (VEC_safe_grow_cleared): New.
833
834         * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
835
836 2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>
837
838         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
839         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
840         to loop_version.
841         * cfgloopmanip.c (scale_loop_frequencies): Export.
842         (loopify): Scale the frequencies by prescribed coefficients.
843         (set_zero_probability): New function.
844         (duplicate_loop_to_header_edge): Improve updating of frequencies.
845         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
846         and frequencies according to arguments.
847         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
848         correctly.
849         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
850         * modulo-sched.c (sms_schedule): Set probabilities for entering
851         versioned loop correctly.
852         * tree-vect-transform.c (vect_transform_loop): Ditto.
853         * cfgloop.h (loopify, loop_version): Declaration changed.
854         (scale_loop_frequencies): Declared.
855
856 2007-01-02  Jan Hubicka  <jh@suse.cz>
857
858         * cgraph.c: Include tree-flow.h
859         (cgraph_add_new-function): Handle IPA_SSA mode; execute
860         early_local_passes.
861         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
862         * tree-pass.h (pass_all_early_optimizations): Declare.
863         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
864         early_local_passes.
865         (cgraph_analyze_function): Do early_local_passes.
866         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
867         Do not add referenced vars.
868         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
869         SSA form.
870         (gate_all_early_local_passes): New gate.
871         (pass_early_local_passes): Use new gate.
872         (execute_early_local_optimizations): New functions.
873         (gate_all_early_optimizations): New gate.
874         (pass_all_early_optimizations): New pass.
875         (execute_free_datastructures): Free SSA only when initialized.
876         (gate_init_datastructures): Init only when optimizing.
877         (tree_lowering_passes): Do early local passes when called late.
878         * tree-profile.c (do_tree_profiling): Don't profile functions added
879         late.
880         (do_early_tree_profiling, pass_early_tree_profile): Kill.
881         * tree-cfg.c (update_modified_stmts): Do not update when operands are
882         not active.
883         * passes.c (init_optimizations_passes): Reorder so we go into SSA
884         during early_local_passes.
885         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
886
887
888 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
889
890         * Makefile.in: Update copyright year.
891
892 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
893
894         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
895         in $(lang_checks) and check-consistency targets.
896
897 2007-01-02  Jan Hubicka  <jh@suse.cz>
898
899         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
900         Do not add referenced vars.
901         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
902         are not active.
903         * passes.c (init_optimization_passes): Put mudflap_2 after
904         free_datastructures.
905
906 2007-01-02  Jan Hubicka  <jh@suse.cz>
907
908         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
909         Set NOTHROW flag on call statements proved to be nothrow.
910         Update statement of local calls so new pure/const functions are
911         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
912         goto receivers.
913         (tree_rest_of_compilation): Register hooks and initialize bitmap
914         early. Do not set after_inlining flag.
915
916 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
917
918         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
919         HOST_BITS_PER_LONGLONG
920
921 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
922
923         PR c/19977
924         * c-typeck.c (store_init_value): Don't emit pedantic overflow
925         warning for non-static initializers.
926
927 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
928
929         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
930         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
931         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
932         Always use set_unique_reg_note to add REG_EQUAL notes.
933
934 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
935
936         Revert:
937         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
938
939         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
940         * cfgbuild.c (find_basic_blocks): Likewise.
941         * cfgrtl.c (rtl_create_basic_block): Likewise.
942         * function.c (temp_slots_at_level): Likewise.
943         * reg-stack.c (stack_regs_mentioned): Likewise.
944         * regclass.c (allocate_reg_info): Likewise.
945         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
946         set_bb_for_stmt, move_block_to_fn): Likewise.
947         * tree-complex.c (tree_lower_complex): Likewise.
948         * vec.h (VEC_safe_grow_cleared): New.
949
950 2007-01-02  Ian Lance Taylor  <iant@google.com>
951
952         * c-common.c (c_common_truthvalue_conversion): When warning about
953         using an assignment as a truth value, set TREE_NO_WARNING.
954
955 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
956
957         PR middle-end/7651
958         * c.opt (Wold-style-declaration): New.
959         * doc/invoke.texi (C-only Warning Options): New.
960         (Wold-style-declaration): Document it.
961         (Wextra): Enabled by -Wextra.
962         * c-opts.c (c_common_post_options): Enabled by -Wextra.
963         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
964         -Wold-style-declaration.
965
966 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
967
968         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
969         * cfgbuild.c (find_basic_blocks): Likewise.
970         * cfgrtl.c (rtl_create_basic_block): Likewise.
971         * function.c (temp_slots_at_level): Likewise.
972         * reg-stack.c (stack_regs_mentioned): Likewise.
973         * regclass.c (allocate_reg_info): Likewise.
974         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
975         set_bb_for_stmt, move_block_to_fn): Likewise.
976         * tree-complex.c (tree_lower_complex): Likewise.
977         * vec.h (VEC_safe_grow_cleared): New.
978
979 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
980
981         * c-common.c(c_common_nodes_and_builtins): Since variants of
982         void_type_node get built before it is given a name, we need to
983         give those variants the name, too.
984         (complete_array_type): We need to work with the canonical main
985         type of the array, from which we will build the qualified version.
986         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
987         * print-tree.c (print_node): Display canonical type information
988         for each type.
989         * stor-layout.c (layout_type): When we don't know the
990         alignment of a type for which we're building an array, we end up
991         guessing wrong, so make the type require structural equality.
992         * tree.c (make_node_stat): When we build a new type, it is its
993         own canonical type.
994         (build_type_attribute_qual_variant): When building an attribute
995         variant, its canonical type is the non-attribute variant. However,
996         if the attributes are target-dependent and they differ, we need to
997         use structural equality checks for this type.
998         (build_qualified_type): A qualified type is not equivalent to its
999         unqualified variant; set the canonical type appropriately.
1000         (build_distinct_type_copy): When building a distinct type from
1001         another type, the new type is its own canonical type.
1002         (build_variant_type_copy): When building a new type variant, we
1003         assume that it is equivalent to the original type.
1004         (build_pointer_type_for_mode): When building a pointer type, also
1005         build a canonical type pointer.
1006         (build_reference_type_for_mode): When building a reference type,
1007         also build a canonical type reference.
1008         (build_index_type): When we can't hash an index type (e.g.,
1009         because its maximum value is negative), the index type requires
1010         structural equality tests.
1011         (build_array_type): Build the canonical form of an array type.
1012         (build_function_type): Function types require structural equality,
1013         because they contain default arguments, attributes, etc.
1014         (build_method_type_directly): Ditto for method types.
1015         (build_offset_type): Build the canonical offset type.
1016         (build_complex_type): Build the canonical vector type.
1017         (make_vector_type): Build the canonical vector type.
1018         * tree.h (TYPE_CANONICAL): New.
1019         (TYPE_STRUCTURAL_EQUALITY_P): New.
1020         (SET_TYPE_STRUCTURAL_EQUALITY): New.
1021         (struct tree_type): Added "canonical" field.
1022         * params.h (VERIFY_CANONICAL_TYPES): New.
1023         * doc/c-tree.texi (TYPE_CANONICAL): Document.
1024         (TYPE_STRUCTURAL_EQUALITY_P): Document.
1025         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
1026         * doc/invoke.texi (verify-canonical-types): Document --param
1027         parameter for verifying canonical types.
1028
1029 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1030
1031         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
1032         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
1033         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
1034         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
1035         tm_file.
1036         * config/rs6000/e500.h: New.
1037         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
1038         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
1039         Remove.
1040         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
1041         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
1042         TARGET_E500_DOUBLE): Remove.
1043         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
1044         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
1045         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
1046         * config/rs6000/rs6000.c (rs6000_override_options): Use
1047         CHECK_E500_OPTIONS.
1048
1049 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1050
1051         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
1052         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
1053         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
1054         rs6000_emit_cmove): Don't check TARGET_E500.
1055         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
1056         sordered): Don't check TARGET_E500.
1057
1058 2007-01-01  Eric Christopher  <echristo@apple.com>
1059
1060         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
1061         HARD_REGISTER_NUM_P.
1062
1063 2007-01-01  Roger Sayle  <roger@eyesopen.com>
1064
1065         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
1066         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
1067         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
1068         eq/ne Y".
1069
1070 2007-01-01  Mike Stump  <mrs@apple.com>
1071
1072         * configure.ac: Remove support for building with Apple's gcc-3.1.
1073
1074 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1075
1076         PR middle-end/30311
1077         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
1078         REG is a hard register.  Do not modify REG before calling
1079         subreg_nregs.
1080         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
1081         multiple of the size of YMODE for certain lowpart cases.
1082
1083 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1084
1085         PR middle-end/30253
1086         * gimplify (voidify_wrapper_expr): Update for
1087         GIMPLE_MODIFY_STMT.
1088
1089 2007-01-01  Andreas Schwab  <schwab@suse.de>
1090
1091         PR target/29166
1092         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
1093         save of BR0 in extra_spill_size instead of spill_size.
1094         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
1095         area.
1096         (ia64_expand_epilogue): Restore BR0 from its new location.
1097
1098 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1099
1100         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
1101         Use a temporary variable if the left hand side is not a gimple
1102         register.
1103
1104 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1105
1106         * gimplify.c (gimplify_return_expr): Make the temporary variable
1107         for the return expression, a gimple register variable.
1108
1109 2007-01-01  Jan Hubicka  <jh@suse.cz>
1110
1111         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
1112         INSN_LIST.
1113
1114 2007-01-01  Mike Stump  <mrs@apple.com>
1115
1116         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
1117         .literal16.
1118         * config/darwin.c (machopic_select_rtx_section): Use
1119         HAVE_GAS_LITERAL16.
1120         (darwin_mergeable_constant_section): Likewise.
1121         * configure: Regenerate.
1122         * config.in: Regenerate.
1123
1124 2007-01-01  Jan Hubicka  <jh@suse.cz>
1125             Andrew Pinski  <pinskia@gmail.com>
1126
1127         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
1128         before starting IPA passes.