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1 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
2
3         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
4         notes on an insn with multiple sets, even if single_set returns
5         non-NULL for that insn.
6
7 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
8
9         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
10         scalbn and scalbln.
11
12 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
13
14         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
15         if user didn't pass it.
16         * config/i386/darwin.h (CC1_SPEC): Likewise.
17         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
18         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
19         -mmacosx-version-min.
20
21 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
22             Uros Bizjak  <ubizjak@gmail.com>
23
24         * optabs.h (enum optab_index): Add new OTI_scalb.
25         (scalb_optab): Define corresponding macro.
26         * optabs.c (init_optabs): Initialize scalb_optab.
27         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
28         patterns.
29         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
30         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
31         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
32         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
33         flag_unsafe_math_optimizations is set.
34
35         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
36         to implement scalbf, scalb and scalbl built-ins as inline x87
37         intrinsics.
38
39 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
40             DJ Delorie <dj@redhat.com>
41
42         PR other/30824
43         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
44         (diagnostic_report_diagnostic): ... here, and turn them into real
45         errors. If warnings are inhibited, no need to do anything.
46
47 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
48
49         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
50         better code generation.
51
52 2007-02-20  Ben Elliston  <bje@au.ibm.com>
53
54         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
55
56 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
57
58         * config/alpha/alpha.c, config/alpha/alpha.md,
59         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
60         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
61         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
62         config/arm/lib1funcs.asm: Follow spelling conventions.
63
64         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
65         config/fr30/fr30.md, config/i386/i386.h,
66         config/iq2000/iq2000.h, config/iq2000/predicates.md,
67         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
68         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
69         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
70         config/rs6000/altivec.md, config/rs6000/rs6000.c,
71         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
72         config/sparc/sparc.c, config/sparc/sparc.h,
73         config/sparc/sparc.md, config/spu/constraints.md,
74         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
75         conventions.
76
77 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
78
79         PR target/29943
80         * varasm.c (use_blocks_for_decl_p): Return false for decls with
81         alias attribute.
82
83 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
84
85         * doc/invoke.texi (-ftree-lrs): Remove.
86
87 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
88
89         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
90         NULL.
91
92 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
93
94         * config/ia64/ia64.c (ia64_expand_builtin): Use the
95         new CALL_EXPR_FN macro for retrieving the function 
96         declaration of the input expression.
97         
98 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
99
100         * c.opt (Waddress): New.
101         * common.opt (Walways-true): Delete.
102         (Wstring-literal-comparison): Delete.
103         * doc/invoke.texi (Warning Options): Delete -Walways-true and
104         -Wstring-literal-comparison. Add -Waddress.
105         (Waddress): New.
106         (Walways-true): Delete.
107         (Wstring-literal-comparison): Delete.
108         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
109         consistently instead of -Walways-true in example.
110         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
111         * c-typeck.c (parser_build_binary_op): Replace
112         -Wstring-literal-comparison and -Walways-true with -Waddress.
113         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
114         with -Waddress.
115         
116 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
117
118         * tree-cfg.c (dump_function_to_file): Be prepared for functions
119         without DECL_STRUCT_FUNCTION initialized.
120
121 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
122
123         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
124         due to calls to functions taking pointers as parameters.
125
126 2007-02-19  Richard Henderson  <rth@redhat.com>
127
128         PR debug/29558
129         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
130         in memory.
131
132 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
133
134         * config/s390/s390.c (s390_call_saved_register_used,
135         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
136         accessed to the new scheme.
137
138 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
139
140         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
141         (cris_print_index, cris_print_operand, cris_print_operand_address)
142         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
143         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
144         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
145         GET_CODE () == xxx.
146         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
147         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
148         GO_IF_LEGITIMATE_ADDRESS): Ditto.
149         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
150         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
151         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
152         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
153         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
154         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
155         (uminsi3, call, call_value): Ditto.
156         (define_split: indir_to_reg_split, unnamed): Ditto.
157
158 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
159
160         PR tree-optimization/30975
161         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
162         wrong assert.
163
164 2007-02-18  Eric Christopher  <echristo@gmail.com>
165
166         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
167         Remove use of arglist.
168         (mips_expand_builtin): Remove use of arglist, pass in expr.
169         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
170         (mips_expand_builtin_movtf): Ditto.
171         (mips_expand_builtin_compare): Ditto.
172
173 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
174
175         * tree-sra.c (sra_build_assignment): Replace assertion
176         checking with a comment explaining why it can't be done.
177
178 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
179
180         PR middle-end/30833
181         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
182         during CALL_EXPR representation conversion.
183         * tree-ssa-propagate.c (set_rhs): Likewise.
184
185 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
186
187         * tree-sra.c (sra_build_assignment): Disable assertion checking
188         for now.
189
190 2007-02-18  Roger Sayle  <roger@eyesopen.com>
191
192         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
193         instead of calling build2 with a GIMPLE_MODIFY_STMT.
194         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
195         Likewise.
196         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
197         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
198         gimplify_init_ctor_eval_range, gimple_push_cleanup,
199         gimplify_omp_for, gimplify_omp_atomic_pipeline,
200         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
201         force_gimple_operand): Likewise.
202         * ipa-cp.c (constant_val_insert): Likewise.
203         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
204         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
205         perfect_nestify): Likewise.
206         * langhooks.c (lhd_omp_assignment): Likewise.
207         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
208         lower_copyprivate_clauses, lower_send_clauses,
209         lower_send_shared_vars, expand_parallel_call,
210         expand_omp_for_generic, expand_omp_for_static_nochunk,
211         expand_omp_for_static_chunk, expand_omp_sections,
212         lower_omp_single_copy, lower_omp_for_lastprivate,
213         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
214         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
215         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
216         Likewise.
217
218 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
219
220         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
221         config/sh/sh.md: Follow spelling conventions.
222
223         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
224         config/frv/predicates.md: Follow spelling conventions.
225
226         * config/m68k/linux-unwind.h: Fix a comment typo.
227         * target.h: Follow spelling conventions.
228
229 2007-02-18  Roger Sayle  <roger@eyesopen.com>
230
231         PR rtl-optimization/28173
232         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
233         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
234         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
235         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
236         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
237
238 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
239
240         * builtins.c (fold_builtin_load_exponent): New.
241         (fold_builtin_2): Use it.
242
243 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
244
245         PR rtl-optimization/30773
246         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
247         if we fail to attach a REG_EQUIV note.
248
249 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
250             Roger Sayle  <roger@eyesopen.com>
251
252         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
253
254 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
255
256         * calls.c (initialize_argument_information): Pass original EXP
257         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
258         code to split complex arguments here, as part of initializing the
259         ARGS array.
260         (expand_call): Remove code that builds a list of arguments and
261         inserts implicit arguments into it.  Instead, just count how many
262         implicit arguments there will be so we can determine the size of
263         the ARGS array, and let initialize_argument_information do the work.
264         (split_complex_values): Delete unused function.
265
266 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
267
268         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
269
270 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
271
272         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
273         for arg pointer based indexed addressing.
274
275 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
276
277         * config/ia64/ia64.h, config/ia64/ia64.md,
278         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
279         spelling conventions.
280
281 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
282
283         * config/m68k/m68k.c (split_di): New.
284         * config/m68k/m68k-protos.h: Declare split_di.
285         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
286           Improve predicate handling and split constant shifts.
287
288 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
289
290         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
291         parameter for register bitfield operations, general predicates
292         cleanup
293
294 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
295
296         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
297         * config/m68k/linux-unwind.h: New file.
298
299 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
300
301         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
302         config/i386/athlon.md, config/ia64/ia64.md,
303         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
304         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
305         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
306         tree-ssa-loop-niter.c, tree-vect-analyze.c,
307         tree-vect-transform.c: Fix comment typos.
308
309 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
310
311         * sched-deps.c (find_insn_list): Remove.
312         * sched-int.h: Remove the prototype for find_insn_list.
313
314 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
315
316         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
317         to linker.
318         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
319         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
320         darwin_rs6000_override_options.
321         (C_COMMON_OVERRIDE_OPTIONS): Expect
322         darwin_macosx_version_min to be non-NULL always.
323         (TARGET_C99_FUNCTIONS): Likewise.
324         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
325         (DARWIN_MINVERSION_SPEC): New.
326         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
327         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
328         to cc1*.
329         (DARWIN_MINVERSION_SPEC): New.
330         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
331         value.
332         * config/darwin-c.c (darwin_cpp_builtins): Expect
333         darwin_macosx_version_min to be non-NULL always.
334
335         * config/rs6000/rs6000.c: Clean up trailing whitespace.
336
337 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
338
339         * config/i386/i386.h (x86_use_xchgb): New.
340         (TARGET_USE_XCHGB): New macro.
341         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
342         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
343         Split after reload into bswaphi for shifts of 8.
344         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
345         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
346         or when optimizing for size.
347
348 2007-02-16  Richard Guenther  <rguenther@suse.de>
349             Christian Bruel  <christian.bruel@st.com>
350
351         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
352         DECLs but prefer SSA_NAMEs over DECLs.
353
354 2007-02-16  Richard Guenther  <rguenther@suse.de>
355
356         * tree-flow-inline.h (single_imm_use_p): Remove.
357         (zero_imm_uses_p): Likewise.
358         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
359         instead of single_imm_use_p.
360         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
361         zero_imm_uses_p.
362
363 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
364
365         PR other/27843
366         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
367         nested double- and backquotes.
368
369 2007-02-15  Roger Sayle  <roger@eyesopen.com>
370
371         PR middle-end/30391
372         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
373         should be unreachable.
374         (build2_stat): Allow construction of MODIFY_EXPR at any time.
375         For the time being redirect GIMPLE_MODIFY_STMT to the new
376         (renamed) build_gimple_modify_stmt_stat.
377         (build2_gimple_stat): Rename to...
378         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
379         Always build a GIMPLE_MODIFY_STMT node.
380         * tree.h (build2_gimple, build2_gimple_stat): Delete.
381         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
382         declarations.
383
384         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
385         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
386         * tree-complex.c (set_component_ssa_name, expand_complex_move,
387         expand_complex_div_wide): Likewise.
388         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
389         * tree-ssa-loop-im.c (schedule_sm): Likewise.
390         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
391         * tree-ssa-loop-manip.c (create_iv): Likewise.
392         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
393         abs_replacement): Likewise.
394         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
395         realify_fake_stores): Likewise.
396
397         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
398         node rather than a GIMPLE_MODIFY_STMT node.
399         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
400         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
401         Likewise.
402         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
403         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
404         GIMPLE_MODIFY_STMT.
405
406 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
407
408         PR middle-end/30433
409         * fold-const.c (fold_comparison): Add back the
410         folding of constant complex comparisions.
411
412 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
413
414         PR middle-end/30729
415         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
416         effects unknown to this function, return early.
417
418 2007-02-15  Ian Lance Taylor  <iant@google.com>
419
420         * lower-subreg.c (move_eh_region_note): New static function.
421         (resolve_simple_move): Call it.
422         (decompose_multiword_subregs): Track blocks for which we resolve a
423         simple move which is also a control flow insn.  Pass them to
424         find_many_sub_basic_blocks.
425         (pass_lower_subreg): Add TODO_verify_flow.
426         (pass_lower_subreg2): Likewise.
427
428 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
429             Brooks Moses  <brooks.moses@codesourcery.com>
430             Lee Millward  <lee.millward@codesourcery.com>
431
432         * tree.h (enum tree_code_class): Add tcc_vl_exp.
433         (VL_EXP_CLASS_P): New.
434         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
435         TREE_CODE_LENGTH.
436         (TREE_OPERAND_CHECK_CODE): Likewise.
437         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
438         (TREE_RTL_OPERAND_CHECK): Likewise.
439         (tree_operand_check_failed): Make second parameter the whole tree
440         instead of its code.  Fixed callers.
441         (VL_EXP_CHECK): New.
442         (TREE_OPERAND_LENGTH): New.
443         (VL_EXP_OPERAND_LENGTH): New.
444         (CALL_EXPR_FN): New.
445         (CALL_EXPR_STATIC_CHAIN): New.
446         (CALL_EXPR_ARGS): New.
447         (CALL_EXPR_ARG): New.
448         (call_expr_nargs): New.
449         (CALL_EXPR_ARGP): New.
450         (build_nt_call_list): Declare.
451         (build_vl_exp_stat): Declare.
452         (build_vl_exp): New.
453         (build_call_list): Declare.
454         (build_call_nary): Declare.
455         (build_call_valist): Declare.
456         (build_call_array): Declare.
457         (call_expr_arg): Declare.
458         (call_expr_argp): Declare.
459         (call_expr_arglist): Declare.
460         (fold_build_call_list): Declare.
461         (fold_build_call_list_initializer): Declare.
462         (fold_call_expr): Declare to replace fold_builtin.
463         (fold_builtin_fputs): Update to agree with modified definition.
464         (fold_builtin_strcpy): Likewise.
465         (fold_builtin_strncpy): Likewise.
466         (fold_builtin_memory_chk): Likewise.
467         (fold_builtin_stxcpy_chk): Likewise.
468         (fold_builtin_strncpy_chk): Likewise.
469         (fold_builtin_next_arg): Likewise.
470         (fold_build_call_expr): Declare.
471         (fold_builtin_call_list): Declare.
472         (fold_builtin_call_valist): Declare.
473         (build_call_expr): Declare.
474         (validate_arglist): Update to agree with modified definition.
475         (tree_operand_length): New.
476         (call_expr_arg_iterator): New.
477         (init_call_expr_arg_iterator): New.
478         (next_call_expr_arg): New.
479         (first_call_expr_arg): New.
480         (more_call_expr_args_p): New.
481         (FOR_EACH_CALL_EXPR_ARG): New.
482
483         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
484         and tcc_gimple_stmt.
485         (tree_code_size): Update documentation.  Use sizeof (tree) rather
486         than sizeof (char *).
487         (tree_size): Likewise.  Add case for tcc_vl_exp.
488         (tree_node_structure): Add case for tcc_vl_exp.
489         (contains_placeholder_p): Likewise.
490         (substitute_in_expr): Likewise.
491         (substitute_placeholder_in_expr): Likewise.
492         (stabilize_reference_1): Likewise.
493         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
494         to diagnose breakage of this interface for constructing CALL_EXPRs.
495         (build_nt): Add similar assertion here.
496         (build_nt_call_list): New.
497         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
498         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
499         TREE_CODE_LENGTH.
500         (get_callee_fndecl): Use new CALL_EXPR accessors.
501         (tree_operand_check_failed): Change parameters to pass entire node
502         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
503         (process_call_operands): New.
504         (build_vl_exp_stat): New.
505         (build_call_list): New.
506         (build_call_nary): New.
507         (build_call_valist): New.
508         (build_call_array): New.
509         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
510         (call_expr_arglist): New.
511
512         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
513         tcc_vl_exp instead of a fixed-size tcc_expression.
514
515         * doc/c-tree.texi (CALL_EXPR): Document new representation and
516         accessors for CALL_EXPRs.
517         (AGGR_INIT_EXPR): Likewise.
518
519 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
520             Brooks Moses  <brooks.moses@codesourcery.com>
521             Lee Millward  <lee.millward@codesourcery.com>
522
523         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
524         (expand_builtin_nonlocal_goto): Change parameter to be entire
525         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
526         (expand_builtin_prefetch): Likewise.
527         (expand_builtin_classify_type): Likewise.
528         (mathfn_built_in): Return NULL_TREE instead of 0.
529         (expand_errno_check): Use new CALL_EXPR accessors.
530         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
531         Return NULL_RTX instead of 0.
532         (expand_builtin_mathfn_2): Likewise.
533         (expand_builtin_mathfn_3): Likewise.
534         (expand_builtin_interclass_mathfn): Likewise.
535         (expand_builtin_sincos): Likewise.
536         (expand_builtin_cexpi): Likewise.
537         (expand_builtin_int_roundingfn): Likewise.
538         (expand_builtin_int_roundingfn_2): Likewise.
539         (expand_builtin_pow): Likewise.
540         (expand_builtin_powi): Likewise.
541         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
542         of arglist, fixing callers appropriately.  Use new CALL_EXPR
543         accessors and constructors.  Return NULL_RTX instead of 0.
544         (expand_builtin_strstr): Likewise.
545         (expand_builtin_strchr): Likewise.
546         (expand_builtin_strrchr): Likewise.
547         (expand_builtin_strpbrk): Likewise.
548         (expand_builtin_memcpy): Likewise.
549         (expand_builtin_mempcpy): Likewise.
550         (expand_builtin_mempcpy_args): New.
551         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
552         (expand_builtin_memmove_args): New.
553         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
554         (expand_movstr): Likewise.
555         (expand_builtin_strcpy): Likewise.
556         (expand_builtin_strcpy_args): New.
557         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
558         (expand_builtin_strncpy): Likewise.
559         (expand_builtin_memset): Likewise.
560         (expand_builtin_memset_args): New.
561         (expand_builtin_bzero): Similarly to expand_builtin_memset.
562         (expand_builtin_memcmp): Likewise.
563         (expand_builtin_strcmp): Likewise.
564         (expand_builtin_strncmp): Likewise.
565         (expand_builtin_strcat): Likewise.
566         (expand_builtin_strncat): Likewise.
567         (expand_builtin_strspn): Likewise.
568         (expand_builtin_strcspn): Likewise.
569         (expand_builtin_args_info): Likewise.
570         (expand_builtin_va_start): Likewise.
571         (gimplify_va_arg_expr): Likewise.
572         (expand_builtin_va_end): Likewise.
573         (expand_builtin_va_copy): Likewise.
574         (expand_builtin_frame_address): Likewise.
575         (expand_builtin_alloca): Likewise.
576         (expand_builtin_bswap): Likewise.
577         (expand_builtin_unop): Likewise.
578         (expand_builtin_fputs): Likewise.
579         (expand_builtin_expect): Likewise.
580         (expand_builtin_fabs): Likewise.
581         (expand_builtin_copysign): Likewise.
582         (expand_builtin_printf): Likewise.
583         (expand_builtin_fprintf): Likewise.
584         (expand_builtin_sprintf): Likewise.
585         (expand_builtin_init_trampoline): Likewise.
586         (expand_builtin_signbit): Likewise.
587         (expand_builtin_fork_or_exec): Likewise.
588         (expand_builtin_sync_operation): Likewise.
589         (expand_builtin_compare_and_swap): Likewise.
590         (expand_builtin_lock_test_and_set): Likewise.
591         (expand_builtin_lock_release): Likewise.
592         (expand_builtin): Likewise.
593         (builtin_mathfn_code): Likewise.
594
595         (fold_builtin_constant_p): Pass call arguments individually instead
596         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
597         accessors and constructors.  Return NULL_TREE instead of 0.
598         (fold_builtin_expect): Likewise.
599         (fold_builtin_classify_type): Likewise.
600         (fold_builtin_strlen): Likewise.
601         (fold_builtin_nan): Likewise.
602         (integer_valued_real_p): Likewise.
603         (fold_trunc_transparent_mathfn): Likewise.
604         (fold_fixed_mathfn): Likewise.
605         (fold_builtin_cabs): Likewise.
606         (fold_builtin_sqrt): Likewise.
607         (fold_builtin_cbrt): Likewise.
608         (fold_builtin_cos): Likewise.
609         (fold_builtin_cosh): Likewise.
610         (fold_builtin_tan): Likewise.
611         (fold_builtin_sincos): Likewise.
612         (fold_builtin_cexp): Likewise.
613         (fold_builtin_trunc): Likewise.
614         (fold_builtin_floor): Likewise.
615         (fold_builtin_ceil): Likewise.
616         (fold_builtin_round): Likewise.
617         (fold_builtin_int_roundingfn): Likewise.
618         (fold_builtin_bitop): Likewise.
619         (fold_builtin_bswap): Likewise.
620         (fold_builtin_logarithm): Likewise.
621         (fold_builtin_hypot): Likewise.
622         (fold_builtin_pow): Likewise.
623         (fold_builtin_powi): Likewise.
624         (fold_builtin_exponent): Likewise.
625         (fold_builtin_memset): Likewise.
626         (fold_builtin_bzero): Likewise.
627         (fold_builtin_memory_op): Likewise.
628         (fold_builtin_bcopy): Deleted; call site changed to invoke
629         fold_builtin_memory_op directly.
630         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
631         (fold_builtin_strncpy): Likewise.
632         (fold_builtin_memcmp): Likewise.
633         (fold_builtin_strcmp): Likewise.
634         (fold_builtin_strncmp): Likewise.
635         (fold_builtin_signbit): Likewise.
636         (fold_builtin_copysign): Likewise.
637         (fold_builtin_isascii): Likewise.
638         (fold_builtin_toascii): Likewise.
639         (fold_builtin_isdigit): Likewise.
640         (fold_builtin_fabs): Likewise.
641         (fold_builtin_abs): Likewise.
642         (fold_builtin_fmin_fmax): Likewise.
643         (fold_builtin_carg): Likewise.
644         (fold_builtin_classify): Likewise.
645         (fold_builtin_unordered_cmp): Likewise.
646
647         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
648         New functions split out from fold_builtin_1.
649         (fold_builtin_n): New.
650         (fold_builtin_varargs): New.
651         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
652         instead.
653         (fold_call_expr): New.
654         (build_function_call_expr): Rewrite to use new helper function.
655         (fold_builtin_call_list): New.
656         (build_call_expr): New.
657         (fold_builtin_call_valist): New.
658         (rewrite_call_expr): New.
659         (validate_arg): New.
660         (validate_arglist): Change parameter to be entire CALL_EXPR instead
661         of an arglist.  Change return type to bool.  Use new CALL_EXPR
662         accessors.
663
664         (fold_builtin_strstr):  Pass call arguments individually instead
665         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
666         accessors and constructors.  Return NULL_TREE instead of 0.
667         (fold_builtin_strchr): Likewise.
668         (fold_builtin_strrchr): Likewise.
669         (fold_builtin_strpbrk): Likewise.
670         (fold_builtin_strcat): Likewise.
671         (fold_builtin_strncat): Likewise.
672         (fold_builtin_strspn): Likewise.
673         (fold_builtin_strcspn): Likewise.
674         (fold_builtin_fputs): Likewise.
675         (fold_builtin_next_arg): Likewise.
676         (fold_builtin_sprintf): Likewise.
677
678         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
679         NULL_RTX instead of 0.
680         (expand_builtin_memory_chk): Likewise.
681         (maybe_emit_chk_warning): Likewise.
682         (maybe_emit_sprintf_chk_warning): Likewise.
683
684         (fold_builtin_object_size): Pass call arguments individually instead
685         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
686         accessors and constructors.  Return NULL_TREE instead of 0.
687         (fold_builtin_memory_chk): Likewise.
688         (fold_builtin_stxcpy_chk): Likewise.
689         (fold_builtin_strncpy_chk): Likewise.
690         (fold_builtin_strcat_chk): Likewise.
691         (fold_builtin_strcat_chk): Likewise.
692         (fold_builtin_strncat_chk): Likewise.
693         (fold_builtin_sprintf_chk): Likewise.
694         (fold_builtin_snprintf_chk): Likewise.
695         (fold_builtin_printf): Likewise.
696         (fold_builtin_vprintf): Likewise.
697
698         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
699         constructors.
700         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
701         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
702         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
703         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
704         (fold_unary): Likewise.
705         (fold_binary): Likewise.
706         (fold_ternary): Remove CALL_EXPR case, since they are no longer
707         ternary expressions.
708         (fold): Add logic for tcc_vl_exp.
709         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
710         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
711         (fold_build3_stat): Add assertion to flag broken interface for
712         constructing CALL_EXPRs.
713         (fold_build_call_list): New.
714         (fold_build_call_list_initializer): New.
715         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
716         constructors.
717         (fold_strip_sign_ops): Likewise.
718
719 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
720             Brooks Moses  <brooks.moses@codesourcery.com>
721             Lee Millward  <lee.millward@codesourcery.com>
722
723         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
724         accessors and dump arguments explicitly.
725
726         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
727         TREE_CODE_LENGTH.
728         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
729         explicitly.
730         (print_call_name): Use new CALL_EXPR accessors.
731
732         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
733         CALL_EXPR arguments explicitly instead of as a list.  Use
734         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
735
736         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
737         (vrp_visit_stmt): Likewise.
738
739         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
740         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
741         TREE_CODE_LENGTH.
742         (force_move_till_expr): Likewise.
743
744         * targhooks.c (default_external_stack_protect_fail): Use
745         build_call_expr instead of build_function_call_expr.
746         (default_hidden_stack_protect_fail): Likewise.
747
748         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
749         build the call.
750
751         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
752         and walk arguments explicitly.
753
754         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
755         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
756         (expand_simple_operations): Likewise.
757         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
758
759         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
760         of TREE_CODE_LENGTH.
761         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
762
763         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
764         instead of TREE_CODE_LENGTH.
765
766         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
767         (tree_ic_transform): Likewise.
768         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
769         parameter instead of arglist.  Fix callers.
770         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
771         (tree_stringops_transform): Likewise.
772         (tree_indirect_call_to_profile): Likewise.
773         (tree_stringops_values_to_profile): Likewise.
774
775         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
776         (eliminate_tail_call): Likewise.
777
778         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
779
780         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
781         Use TREE_OPERAND_LENGTH and generalize to handle any number of
782         operands.
783         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
784
785         * omp-low.c (build_omp_barrier): Use build_call_expr.
786         (lower_rec_input_clauses): Likewise.
787         (lower_reduction_clauses): Likewise.
788         (expand_parallel_call): Likewise.
789         (maybe_catch_exception): Likewise.
790         (expand_omp_for_generic): Likewise.
791         (expand_omp_for_static_nochunk): Likewise.
792         (expand_omp_sections): Likewise.
793         (lower_omp_single_simple): Likewise.
794         (lower_omp_single_copy): Likewise.
795         (lower_omp_master): Likewise.
796         (lower_omp_ordered): Likewise.
797         (lower_omp_critical): Likewise.
798
799         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
800         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
801
802         * tree-gimple.c (is_gimple_call_addr): Fix doc.
803         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
804         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
805
806         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
807         and generalize to handle any number of operands.
808         (chrec_contains_undetermined): Likewise.
809         (tree_contains_chrecs): Likewise.
810         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
811
812         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
813
814         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
815         fold_call_expr instead of fold_builtin.
816         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
817         match declarations there.
818         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
819         updates.
820
821         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
822         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
823
824         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
825         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
826
827         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
828         accessors.
829
830         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
831         (execute_cse_sincos): Use new CALL_EXPR accessors.
832
833         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
834
835         * gimple-low.c (lower_function_body): Use build_call_expr.
836         (lower_builtin_setjmp): Likewise.
837
838         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
839         (set_storage_via_libcall): Likewise.
840         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
841         instead of TREE_CODE_LENGTH.
842         (expand_expr_real_1): Use new CALL_EXPR accessors.
843
844         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
845         generalize to handle any number of operands.
846         (TB_parent_eq): Likewise.
847
848         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
849         (strip_builtin_expect): Likewise.
850
851         * function.c (gimplify_parameters): Use build_call_expr.
852
853         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
854         instead of TREE_CODE_LENGTH.
855
856         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
857         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
858
859         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
860         iterators.
861
862         * gimplify.c (build_stack_save_restore): Use build_call_expr.
863         (gimplify_decl_expr): Likewise.
864         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
865         Use new CALL_EXPR iterators.
866         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
867         (gimplify_modify_expr_to_memset): Likewise.
868         (gimplify_variable_sized_compare): Likewise.
869         (gimplify_omp_atomic_fetch_op): Likewise.
870         (gimplify_omp_atomic_pipeline): Likewise.
871         (gimplify_omp_atomic_mutex): Likewise.
872         (gimplify_function_tree): Likewise.
873
874         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
875         (call_expr_flags): Likewise.
876         (expand_call): Likewise.
877
878         * except.c (expand_builtin_eh_return_data_regno): Pass entire
879         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
880         accessors.
881
882         * coverage.c (create_coverage): Use build_call_expr.
883
884         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
885         (temp_call_expr_obstack): New.
886         (pool_copy_list): Delete.
887         (temp_copy_call_expr): New.
888         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
889         CALL_EXPR accessors.  Get rid of special goo for copying argument
890         lists and use temp_copy_call_expr instead.
891         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
892         CALL_EXPR accessors.
893         (create_expression_by_pieces): Likewise.  Use build_call_array
894         to construct the result instead of fold_build3.
895         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
896         dealing with argument lists.
897         (init_pre): Remove references to expression_node_pool and
898         list_node_pool.  Init temp_call_expr_obstack instead.
899         (fini_pre): Remove references to expression_node_pool and
900         list_node_pool.
901
902         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
903         and walk arguments explicitly instead of as a list.
904
905         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
906         (mx_register_decls): Likewise.
907         (mudflap_register_call): Likewise.
908         (mudflap_finish_file): Likewise.
909
910         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
911         (ipa_callsite_compute_param): Likewise.
912
913         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
914         accessors and constructor.
915
916         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
917         accessors and constructor.
918         (convert_tramp_reference): Likewise.
919         (convert_call_expr): Likewise.
920         (finalize_nesting_tree_1): Likewise.
921
922         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
923         accessors.
924
925         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
926
927         * tree-inline.c (initialize_inlined_parameters): Pass entire
928         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
929         accessors.
930         (estimate_num_insns_1): Use new CALL_EXPR accessors.
931         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
932
933         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
934         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
935         (vectorizable_reduction): Likewise.
936         (vectorizable_call): Use new CALL_EXPR iterators.
937         (vectorizable_conversion): Use build_call_expr.
938         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
939         (vect_gen_widened_results_half): Use build_call_expr.
940         (vect_setup_realignment): Likewise.
941         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
942
943         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
944         (pass_through_call): Likewise.
945         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
946         fold_builtin.
947
948         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
949         (tree_gen_pow2_profiler): Likewise.
950         (tree_gen_one_value_profiler): Likewise.
951         (tree_gen_ic_func_profiler): Likewise.
952         (tree_gen_average_profiler): Likewise.
953         (tree_gen_ior_profiler): Likewise.
954
955         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
956         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
957         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
958
959         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
960         of TREE_CODE_LENGTH.
961
962         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
963         of TREE_CODE_LENGTH.
964
965         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
966         constructor.
967         (convert_to_integer): Likewise.
968
969         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
970         accessors.
971
972 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
973             Brooks Moses  <brooks.moses@codesourcery.com>
974             Lee Millward  <lee.millward@codesourcery.com>
975
976         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
977         accessors.
978         * config/frv/frv.c (frv_expand_builtin): Likewise.
979         * config/s390/s390.c (s390_expand_builtin): Likewise.
980
981         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
982         (sparc_expand_builtin): Use new CALL_EXPR accessors.
983
984         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
985         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
986         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
987         (ix86_expand_store_builtin): Likewise.
988         (ix86_expand_unop_builtin): Likewise.
989         (ix86_expand_unop1_builtin): Likewise.
990         (ix86_expand_sse_compare): Likewise.
991         (ix86_expand_sse_comi): Likewise.
992         (ix86_expand_vec_init_builtin): Likewise.
993         (ix86_expand_vec_ext_builtin): Likewise.
994         (ix86_expand_vec_set_builtin): Likewise.
995         (ix86_expand_builtin): Use new CALL_EXPR accessors.
996
997         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
998         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
999
1000         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
1001         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1002         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
1003
1004         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
1005         build_call_expr.
1006         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
1007         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
1008         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1009         (altivec_expand_abs_builtin): Likewise.
1010         (rs6000_expand_binop_builtin): Likewise.
1011         (altivec_expand_predicate_builtin): Likewise.
1012         (altivec_expand_lv_builtin): Likewise.
1013         (spe_expand_stv_builtin): Likewise.
1014         (altivec_expand_stv_builtin): Likewise.
1015         (rs6000_expand_ternop_builtin): Likewise.
1016         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
1017         (altivec_expand_st_builtin): Likewise.
1018         (altivec_expand_dst_builtin): Likewise.
1019         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
1020         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1021         (altivec_expand_vec_set_builtin): Likewise.
1022         (altivec_expand_vec_ext_builtin): Likewise.
1023         (altivec_expand_builtin): Use new CALL_EXPR accessors.
1024         (spe_expand_builtin): Likewise.
1025         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
1026         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1027         (spe_expand_evsel_builtin): Likewise.
1028         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
1029         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
1030
1031         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
1032         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1033         (arm_expand_unop_builtin): Likewise.
1034         (arm_expand_builtin): Use new CALL_EXPR accessors.
1035
1036         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
1037         accessors.
1038
1039         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
1040         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1041         (bfin_expand_unop_builtin): Likewise.
1042         (bfin_expand_builtin): Use new CALL_EXPR accessors.
1043
1044 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1045             Brooks Moses  <brooks.moses@codesourcery.com>
1046             Lee Millward  <lee.millward@codesourcery.com>
1047
1048         * c-semantics.c (build_stmt): Add internal diagnostic check.
1049
1050         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
1051         accessors.  Print arguments explicitly instead of as a list.
1052
1053         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
1054
1055         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
1056         (c_finish_omp_flish): Likewise.
1057
1058         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
1059         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
1060         instead of TREE_CODE_LENGTH.
1061         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
1062         (c_warn_unused_result): Likewise.
1063
1064 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1065
1066         PR c/26494
1067         * doc/invoke.texi (Warning Options): Remove
1068         -Werror-implicit-function-declaration.
1069         (Wimplicit-function-declaration): Update description.
1070         * opts.c (common_handle_option): Move handling of -Werror=* to...
1071         (enable_warning_as_error): ...here.
1072         * opts.h (enable_warning_as_error): Declare.
1073         * c-decl.c (implicit_decl_warning): Unless
1074         -Wno-implicit-function-declaration is given, emit a pedwarn if
1075         -std=c99 or emit a warning if -Wimplicit-function-declaration.
1076         * c.opt (Wimplicit-function-declaration): Replace
1077         mesg_implicit_function_declaration with
1078         warn_implicit_function_declaration.
1079         * c-opts.c (c_common_handle_option):
1080         -Werror-implicit-function-declaration is exactly equal as
1081         -Werror=implicit-function-declaration.
1082         (set_Wimplicit): Replace mesg_implicit_function_declaration with
1083         warn_implicit_function_declaration.
1084         (c_common_post_options): -Wimplict-function-declaration is enabled
1085         by default by -std=c99, otherwise is disabled by default.
1086         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
1087
1088 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1089
1090         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
1091         DECL on the rhs to a DECL on the lhs for debug info purposes if the
1092         former is ignored but not the latter.
1093
1094 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1095
1096         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
1097         is made and the reference doesn't use the alias set of its type,
1098         do not create the temporary using that type.
1099
1100 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
1101
1102         * jump.c: Remove prototypes for delete_computation and
1103         delete_prior_computation.
1104
1105 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1106
1107         * jump.c (get_label_after): Delete.
1108         (get_label_before, delete_computation, delete_jump,
1109         delete_prior_computation, follow_jumps): Move...
1110         * reorg.c (delete_computation, delete_prior_computation): ... here...
1111         (get_label_before, delete_jump): ... making these static ...
1112         (follow_jumps): ... and simplifying this since it only runs after
1113         reload.
1114         * rtl.h (get_label_after, get_label_before, delete_jump,
1115         follow_jumps): Delete prototypes.
1116
1117 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1118
1119         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1120
1121 2007-02-15  Nick Clifton  <nickc@redhat.com>
1122
1123         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
1124         order to prevent it from being munged by the target.
1125
1126 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
1127
1128         * config/i386/i386.md: Remove misleading comment.
1129
1130 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1131
1132         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
1133         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
1134         invalid patterns.
1135
1136 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1137
1138         * tree-sra.c (instantiate_missing_elements): Canonicalize
1139         bit-field types.
1140         (sra_build_assignment): New.
1141         (generate_copy_inout, generate_element_copy,
1142         generate_element_zero, generate_one_element_init): Use it.
1143
1144 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1145
1146         * tree-sra.c (instantiate_missing_elements): Canonicalize
1147         bit-field types.
1148         (sra_build_assignment): New.
1149         (generate_copy_inout, generate_element_copy,
1150         generate_element_zero, generate_one_element_init): Use it.
1151
1152 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1153
1154         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
1155         limbo die nodes.
1156
1157 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
1158
1159         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
1160         types as aggregates not scalars.
1161         * function.c (assign_stack_temp_for_type): Likewise.
1162
1163 2007-02-14  Roger Sayle  <roger@eyesopen.com>
1164             Zdenek Dvorak  <dvorakz@suse.cz>
1165
1166         * tree-dump.c (dump_switch_p_1): Require exact match of the option
1167         name.
1168
1169 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
1170
1171         * passes.c (next_pass_1): Clear the next field of the copied
1172         pass structure.
1173
1174 2007-02-14  Richard Henderson  <rth@redhat.com>
1175
1176         * tree-sra.c (early_sra): New.
1177         (decl_can_be_decomposed_p): Deny va_list if early_sra.
1178         (tree_sra_early, pass_sra_early): New.
1179         * tree-pass.h (pass_sra_early): Declare.
1180         * passes.c (init_optimization_passes): Use it.
1181
1182 2007-02-14  Richard Guenther  <rguenther@suse.de>
1183
1184         * flags.h (issue_strict_overflow_warning): Convert to a macro.
1185
1186 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
1187
1188          PR tree-optimization/30771
1189         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
1190         also phi nodes.
1191         (vect_analyze_operations): Induction phis can now be marked as
1192         used_in_loop.
1193         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
1194         Update documentation accordingly.
1195
1196 2007-02-14  Nick Clifton  <nickc@redhat.com>
1197
1198         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
1199         most 3 arguments are supported.
1200         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
1201
1202 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
1203
1204         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1205         Ensure dst->current is valid.
1206
1207 2007-02-13  Paul Brook  <paul@codesourcery.com>
1208
1209         * config.gcc: Add arm*-*-uclinux-*eabi.
1210         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
1211         (SUBTARGET_EXTRA_LINK_SPEC): Define.
1212         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
1213         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
1214         (LINK_SPEC): Define.
1215         (LIB_SPEC): Define.
1216         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
1217         register.
1218         * config/arm/uclinux-eabi.h: New file.
1219         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
1220         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
1221         based targets.
1222
1223 2007-02-13  Ian Lance Taylor  <iant@google.com>
1224
1225         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
1226         * flags.h (warn_strict_overflow): Declare.
1227         (enum warn_strict_overflow_code): Define.
1228         (issue_strict_overflow_warning): New static inline function.
1229         * opts.c (warn_strict_overflow): New variable.
1230         (common_handle_option): Handle OPT_Wstrict_overflow and
1231         OPT_Wstrict_overflow_.
1232         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
1233         OPT_Wall.
1234         * fold-const.c: Include intl.h.
1235         (fold_deferring_overflow_warnings): New static variable.
1236         (fold_deferred_overflow_warning): New static variable.
1237         (fold_deferred_overflow_code): New static variable.
1238         (fold_defer_overflow_warnings): New function.
1239         (fold_undefer_overflow_warnings): New function.
1240         (fold_undefer_and_ignore_overflow_warnings): New function.
1241         (fold_deferring_overflow_warnings_p): New function.
1242         (fold_overflow_warning): New static function.
1243         (make_range): Add strict_overflow_p parameter.  Change all
1244         callers.
1245         (extract_muldiv, extract_muldiv_1): Likewise.
1246         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
1247         tree_expr_nonnegative_p.
1248         (fold_negate_expr): Call fold_overflow_warning.
1249         (fold_range_test): Likewise.
1250         (fold_comparison): Likewise.
1251         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
1252         instead of tree_expr_nonnegative_p.
1253         (tree_expr_nonnegative_warnv_p): Rename from
1254         tree_expr_nonnegative_p, add strict_overflow_p parameter.
1255         (tree_expr_nonnegative_p): New function.
1256         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
1257         strict_overflow_p parameter.
1258         (tree_expr_nonzero_p): New function.
1259         * passes.c (verify_interpass_invariants): New static function.
1260         (execute_one_pass): Call it.
1261         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
1262         warnings.
1263         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
1264         (estimate_numbers_of_iterations): Likewise.
1265         (scev_probably_wraps_p): Likewise.
1266         * tree-ssa-ccp.c: Include "toplev.h".
1267         (evaluate_stmt): Defer fold overflow warnings until we know we are
1268         going to optimize.
1269         (struct fold_stmt_r_data): Add stmt field.
1270         (fold_stmt_r): Defer fold overflow warnings until we know we
1271         optimized.
1272         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
1273         (fold_stmt_inplace): Likewise.
1274         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
1275         (cleanup_control_expr_graph): Defer fold overflow warnings until
1276         we know we are going to optimize.
1277         * tree-cfg.c (fold_cond_expr_cond): Likewise.
1278         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
1279         Likewise.
1280         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
1281         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
1282         * tree-ssa-loop-manip.c (create_iv): Likewise.
1283         * c-typeck.c (build_conditional_expr): Likewise.
1284         (build_binary_op): Likewise.
1285         * tree-vrp.c (vrp_expr_computes_nonzero): Call
1286         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
1287         (extract_range_from_unary_expr): Likewise.
1288         * simplify-rtx.c (simplify_const_relational_operation): Warn when
1289         assuming that signed overflow does not occur.
1290         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
1291         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
1292         (fold_defer_overflow_warnings): Declare.
1293         (fold_undefer_overflow_warnings): Declare.
1294         (fold_undefer_and_ignore_overflow_warnings): Declare.
1295         (fold_deferring_overflow_warnings_p): Declare.
1296         (tree_expr_nonzero_warnv_p): Declare.
1297         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
1298         of warning options.
1299         (Warning Options): Document -Wstrict-overflow.
1300         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
1301         (tree-ssa-ccp.o): Likewise.
1302         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
1303         (fold-const.o): Depend on intl.h.
1304
1305 2007-02-13  Ian Lance Taylor  <iant@google.com>
1306
1307         PR middle-end/30751
1308         * lower-subreg.c (resolve_simple_move): Decompose subregs in
1309         addresses.
1310
1311 2007-02-13  Stuart Hastings  <stuart@apple.com>
1312
1313         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
1314
1315 2007-02-13  Richard Henderson  <rth@redhat.com>
1316
1317         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
1318         handled_component_p before looking for the indirect_ref.
1319
1320 2007-02-13  Richard Henderson  <rth@redhat.com>
1321
1322         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
1323         remove flags clobber.
1324         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
1325         (bswaphi_lowpart): New.
1326         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
1327         remove TARGET_BSWAP test.  Delete expander of the same name.
1328
1329         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
1330         (expand_unop): Use them.
1331
1332 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
1333
1334         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
1335         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
1336         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
1337         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
1338         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
1339         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
1340         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
1341         assembler dialect choice from asm templates.
1342
1343 2007-02-12  Richard Henderson  <rth@redhat.com>
1344
1345         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
1346         (fixuns_trunc<SSEMODEF>si2): Use it.
1347         * config/i386/sse.md (vec_setv4sf_0): Export.
1348         * config/i386/i386.c (ix86_build_const_vector): Export.
1349         (ix86_split_convert_uns_si_sse): Rename from
1350         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
1351         * config/i386/i386-protos.h: Update.
1352
1353 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1354
1355         PR c/29521
1356         * c-typeck.c (c_finish_return): Improve warning message.
1357
1358 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1359
1360         * alias.c (find_symbolic_term): Delete unused function.
1361
1362 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
1363
1364         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
1365         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
1366         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
1367
1368 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1369
1370         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
1371         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
1372         the function, temporarily point the debug interface to the null one.
1373
1374 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1375
1376         * dwarf2out.c (round_up_to_align): New static function.
1377         (field_byte_offset): Use it to round the offset.
1378
1379 2007-02-12  Richard Henderson  <rth@redhat.com>
1380
1381         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
1382         (inswl_const): Export.
1383
1384 2007-02-12  Richard Henderson  <rth@redhat.com>
1385
1386         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
1387         result mode of the libcall, convert back to outmode.
1388
1389 2007-02-12  Roger Sayle  <roger@eyesopen.com>
1390
1391         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
1392         (bswapdi2): New define_expand to implement 32-bit implementation.
1393
1394 2007-02-12  Nick Clifton  <nickc@redhat.com>
1395
1396         * doc/invoke.texi (Overall Options): Document --help=.
1397         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
1398         (cc1_options): Pass --help= on to cc1.
1399         (display_help): Add description of --help=.
1400         (process_command): Add code to handle --help=.  Allow translated
1401         --help and --target-help switches to be passed on to compiler
1402         sub-process.
1403         (main): Remove unused if statement.
1404         * opts.c (columns): Remove.
1405         (LEFT_COLUMN): Define.
1406         (wrap_help): Add columns argument.
1407         (print_filtered_help): Change parameters to be an include bitmask,
1408         an exclude bitmask, an any bitmask and the column width.  Move the
1409         code to display the params list here.  Add code to display the
1410         status of options rather than their descriptions if the quiet flag
1411         is not active.
1412         (print_specific_help): Change parameters to be an include bitmask,
1413         an exclude bitmask and an any bitmask.  Move code to look up the
1414         column width here.  Decide upon the title for an options listing.
1415         (common_handle_options): Add code to handle --help=.  Adapt code
1416         for --help and --target-help to use the revised form of the
1417         print_specific_help function.
1418         (print_help): Delete.
1419         (print_param_help): Delete.
1420         (print_switch): Delete.
1421         * opts.h (cl_lang_count): Add prototype.
1422         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
1423         CL_MAX_OPTION_CLASS): New defines.
1424         * optc-gen.awk: Add construction of cl_lang_count.
1425         * c.opt: Add Warning attribute to warning options and Optimization
1426         attribute to optimization options.
1427         * common.opt: Likewise.
1428         Add --help=.
1429         Add -fhelp and -ftarget-help as aliases for the transformed --help
1430         and --target-help options.
1431         * opt-functions.awk: Add code to handle Warning and Optimization
1432         attributes.
1433
1434 2007-02-12  Richard Henderson  <rth@redhat.com>
1435
1436         * config/alpha/constraints.md: New file.
1437         * config/alpha/alpha.c: Include tm-constrs.h.
1438         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
1439         alpha_extra_constraint): Remove.
1440         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
1441         * config/alpha/alpha-protos.h: Update.
1442         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
1443         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
1444         (EXTRA_CONSTRAINT): Remove.
1445         * config/alpha/alpha.md: Include constraints.md.
1446         (adddi splitter): Use satisfies_constraint_*.
1447         * config/alpha/predicates.md (add_operand): Likewise.
1448         (sext_add_operand, addition_operation): Likewise.
1449
1450 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
1451
1452         PR tree-optimization/29145
1453         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
1454         in our handling of restrict qualified pointers.
1455
1456 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1457
1458         PR middle-end/7651
1459         * doc/invoke.texi (Wunused-value): Update description.
1460         (Wextra): Delete item.
1461         * opts.c (set_Wextra): Don't use the value of Wextra to set the
1462         value of Wunused-value.
1463         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
1464         (c_finish_stmt_expr): Don't check extra_warnings.
1465         (emit_side_effect_warnings): The caller is responsible to check
1466         warn_unused_value.
1467
1468 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1469             Matt Thomas  <matt@3am-software.com>
1470
1471         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
1472
1473 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1474
1475         * simplify-rtx.c (simplify_relational_operation_1): Optimize
1476         comparisons of POPCOUNT against zero.
1477         (simplify_const_relational_operation): Likewise.
1478
1479 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1480
1481         * doc/invoke.texi (Wextra): Delete outdated paragraph.
1482
1483 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1484
1485         * dwarf2out.c (root_type): Delete unused function.
1486
1487 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1488
1489         * genattrtab.c (contained_in_p): Delete unused function.
1490         (write_expr_attr_cache): Likewise.
1491
1492 2007-02-11  Jan Hubicka  <jh@suse.cz>
1493
1494         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
1495         previous patch.
1496
1497 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
1498
1499         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
1500         to add the REG_EQ* note.
1501         * see.c (see_merge_one_use_extension): Likewise.
1502         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
1503         turn REG_EQUAL notes into REG_EQUIV notes if the target
1504         register may have more than one set.
1505         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
1506         * gcse.c (try_replace_reg): Likewise.
1507         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
1508         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
1509         more than one REG_EQUIV note.
1510         * reload1.c (gen_reload): Use set_unique_reg_note.
1511
1512 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
1513
1514         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
1515         (ix86_builtin_conversion): New function.
1516
1517 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
1518
1519         PR target/29487
1520         * tree.h (DECL_REPLACEABLE_P): New macro.
1521         * except.c (set_nothrow_function_flags): Likewise.
1522
1523 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
1524             Ira Rosen  <irar@il.ibm.com>
1525             Dorit Nuzman  <dorit@il.ibm.com>
1526
1527         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
1528         * targhooks.c (default_builtin_vectorized_conversion): New.
1529         * targhooks.h (default_builtin_vectorized_function): New declaration.
1530         * target.h (struct vectorize): Add builtin_conversion field.
1531         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
1532         stmt_vec_info_type value.
1533         (vectorizable_conversion): New declaration.
1534         * tree-vect-analyze.c (vect_analyze_operations): Add
1535         vectorizable_conversion call.
1536         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
1537         * tree-vect-transform.c (vectorizable_conversion): New function.
1538         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
1539         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
1540         mode.
1541         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
1542         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
1543         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
1544         or ALTIVEC_BUILTIN_VCFSX.
1545
1546 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1547
1548         PR target/30634
1549         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
1550         CONST_DOUBLE and operand 0 is a hard register.
1551         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
1552         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
1553         is a hard floating-point register.
1554
1555 2007-02-10  Richard Henderson  <rth@redhat.com>
1556             Jakub Jelinek  <jakub@redhat.com>
1557             Alexandre Oliva  <aoliva@redhat.com>
1558
1559         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
1560         * builtin-types.def (BT_WORD): Make unsigned.
1561         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
1562         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
1563         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
1564         * c-decl.c (grokdeclarator): Don't error if !have_tls.
1565         * c-parser.c (c_parser_omp_threadprivate): Likewise.
1566         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
1567         emulated tls.
1568         * expr.c (emutls_var_address): New.
1569         (expand_expr_real_1): Expand emulated tls.
1570         (expand_expr_addr_expr_1): Likewise.
1571         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
1572         * output.h (emutls_finish): Declare.
1573         * toplev.c (compile_file): Call it.
1574         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
1575         address before wrapping in CONST.
1576         * varasm.c (emutls_htab, emutls_object_type): New.
1577         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
1578         (get_emutls_object_name, get_emutls_object_type): New.
1579         (get_emutls_init_templ_addr, emutls_decl): New.
1580         (emutls_common_1, emutls_finish): New.
1581         (assemble_variable): When emulating tls, swap decls; generate
1582         constructor for the emutls objects.
1583         (do_assemble_alias): When emulating tls, swap decl and target name.
1584         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
1585         for emulated tls.
1586         * varpool.c (decide_is_variable_needed): Look at force_output.
1587         Recurse for emulated tls.
1588         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
1589         with decide_is_variable_needed.
1590         * emutls.c: New file.
1591         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
1592         tls_object for real tls.
1593
1594 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1595
1596         PR rtl-optimization/29599
1597         * reload1.c (eliminate_regs_in_insn): Take the destination
1598         mode into account when computing the offset.
1599
1600 2007-02-09  Stuart Hastings  <stuart@apple.com>
1601             Richard Henderson  <rth@redhat.com>
1602
1603         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1604         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1605         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
1606         fixuns_truncdfhi2): New.
1607         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
1608         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
1609         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
1610         (floatunssidf2): Allow nonimmediate source.
1611         * gcc/config/i386/sse.md (movdi_to_sse): New.
1612         (vec_concatv2di): Drop '*'.
1613         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
1614         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1615         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
1616         New.
1617         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
1618         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1619         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
1620         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
1621         (ix86_build_signbit_mask): Fix decl of v, refactor to call
1622         ix86_build_const_vector.
1623         (x86_emit_floatuns): Rewrite.
1624
1625 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1626
1627         * genautomata.c (longest_path_length): Delete unused function.
1628         (struct state): Delete unused longest_path_length.
1629         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
1630         (get_free_state): Delete unused.
1631
1632 2007-02-09  Jan Hubicka  <jh@suse.cz>
1633
1634         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
1635         * doc/invoke.texi (inline-unit-growth): Update default value.
1636
1637         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
1638         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
1639         (rebuild_cgraph_edges): Likewise.
1640         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
1641         (dump_cgraph_node): Dump frequencies.
1642         (cgraph_clone_edge): Add frequency scales.
1643         (cgraph_clone_node): Add freuqnecy.
1644         * cgraph.h (cgraph_edge): Add freuqnecy argument.
1645         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
1646         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
1647         * tree-pass.h (TODO_rebuild_frequencies): New constant.
1648         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
1649         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
1650         (save_inline_function_body): Likewise.
1651         * ipa-inline.c: inluce rtl.h
1652         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
1653         (cgraph_edge_badness): Use frequencies.
1654         (cgraph_decide_recursive_inlining): Update clonning.
1655         (cgraph_decide_inlining_of_small_function): Dump frequency.
1656         * predict.c (estimate_bb_frequencies): Export.
1657         * predict.h (estimate_bb_frequencies): Declare.
1658         * tree-inline.c (copy_bb): Watch overflows.
1659         (expand_call_inline): Update call of cgraph_create_edge.
1660         (optimize_inline_calls): Use TODO flags to update frequnecies.
1661         * passes.h: Include predict.h
1662         (init_optimization_passes): Move profile ahead.
1663         (execute_function_todo): Handle TODO_rebuild_frequencies.
1664
1665 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1666
1667         * config/alpha/alpha.c (emit_insxl): Force the first operand of
1668         the insbl or inswl pattern into a register.
1669
1670 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1671
1672         * config/ia64/ia64.md (bswapdi2): New define_insn.
1673
1674 2007-02-09  Richard Henderson  <rth@redhat.com>
1675
1676         * config/i386/constraints.md (Ym): New constraint.
1677         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
1678         (movdi_1_rex64): Split sse and xmm general register moves from
1679         memory move alternatives.  Use conditional register constraints.
1680         (movsf_1, movdf_integer): Likewise.
1681         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
1682         (movdf_integer_rex64): New.
1683         (pushsf_rex64): Fix output constraints.
1684         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
1685         (sse2_stored): Likewise.
1686         (sse2_storeq_rex64): New.
1687         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
1688         amd and not generic.
1689         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
1690         for optimize_size.  Remove SF/DFmode hack.
1691
1692 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
1693
1694         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
1695         (bit_SSE4a): New.
1696
1697 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
1698             Richard Sandiford  <richard@codesourcery.com>
1699
1700         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
1701         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
1702         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
1703         m68k/t-mlib to tmake_file.
1704         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
1705         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
1706         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
1707         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
1708         variable is not empty, add t-$m68k_arch_family to tmake_file.
1709         Add t-mlibs to tmake_file.
1710         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
1711         * config/m68k/t-cf: New file.
1712         * config/m68k/t-m68k: Likewise.
1713         * config/m68k/t-mlibs: Likewise.
1714         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1715         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1716         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1717         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1718         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
1719         Delete.
1720         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
1721         (INSTALL_LIBGCC): Delete.
1722         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1723         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1724         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1725         (M68K_MLIB_CPU): Define.
1726         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1727         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1728         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
1729
1730 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
1731             Richard Guenther  <rguenther@suse.de>
1732
1733         PR middle-end/23361
1734         * fold-const.c (fold_comparison): Handle obfuscated comparisons
1735         against INT_MIN/INT_MAX.
1736         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
1737         file if a loop is removed.
1738
1739 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
1740
1741         * calls.c (store_one_arg): Pass correct alignment to
1742         emit_push_insn for non-BLKmode values.
1743         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
1744         unaligned stack slot via a suitably aligned slot.
1745
1746 2007-02-08  DJ Delorie  <dj@redhat.com>
1747
1748         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
1749         warnings.
1750         (legal_subregs): Use unsigned char, make const.
1751         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
1752
1753 2007-02-08  Paul Brook  <paul@codesourcery.com>
1754
1755         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
1756         special interworking needed.
1757
1758 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
1759
1760         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
1761         conditional to __SSE2__.
1762         (Entries below should have been added to first ChangeLog
1763         entry for amdfam10 dated 2007-02-05)
1764         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
1765         defined.
1766         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
1767         defined.
1768         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
1769         defined.
1770
1771 2007-02-08  DJ Delorie  <dj@redhat.com>
1772
1773         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
1774         * config/m32c/m32c.c (legal_subregs): New.
1775         (m32c_illegal_subreg_p): New.
1776         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
1777         unsupported subregs of hard regs.
1778
1779 2007-02-08  Jan Hubicka  <jh@suse.cz>
1780
1781         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
1782         the same one; always update histograms.
1783
1784 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1785
1786         * passes.c (init_optimization_passes): Tidy comment.
1787
1788 2007-02-08  Roger Sayle  <roger@eyesopen.com>
1789
1790         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
1791         strip zero_extend, bswap and rotates from POCOUNT's argument.
1792         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
1793         zero_extend and rotates from PARITY's argument.
1794         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
1795         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
1796         of an integer constant at compile-time.
1797
1798 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1799
1800         PR 30562
1801         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
1802         Update all users.
1803         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
1804         users.
1805         (init_alias_info):
1806         * tree-ssa-live.c (remove_unused_locals): Do not remove
1807         TREE_ADDRESSABLE variables.
1808         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
1809         * tree-ssa-operands.c (add_virtual_operand): Remove argument
1810         FOR_CLOBBER.  Update all users.
1811         If VAR has an associated alias set, add a virtual operand for
1812         it if no alias is found to conflict with the memory reference.
1813
1814 2007-02-07  Jan Hubicka  <jh@suse.cz>
1815             Robert Kidd <rkidd@crhc.uiuc.edu>
1816
1817         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
1818
1819 2007-02-07  Ian Lance Taylor  <iant@google.com>
1820
1821         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
1822
1823 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1824
1825         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
1826         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
1827         tablejumpdi, movsi_to_cr_one): Remove constraints from
1828         define_expand's match_operands.
1829
1830 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1831
1832         * global.c (compute_regsets): Move declatation of "i" inside of
1833         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
1834
1835 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
1836
1837         PR c++/30703
1838         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
1839         of INDIRECT_REF <RESULT_DECL>.
1840
1841         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
1842
1843 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
1844             Kaz Kojima  <kkojima@gcc.gnu.org>
1845
1846         PR target/29746
1847         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
1848         properly.
1849         (sh_initialize_trampoline): Add parentheses to avoid a warning.
1850
1851 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1852
1853         * doc/loop.texi: Document possibility not to perform disambiguation
1854         of loops with multiple latches.
1855         * cfgloopmanip.c (alp_enum_p): Removed.
1856         (add_loop): Handle subloops.  Use get_loop_body_with_size.
1857         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
1858         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
1859         the new forwarder block.
1860         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
1861         Handle the case latch is NULL.
1862         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
1863         when marking loop exits.
1864         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
1865         be modified.
1866         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
1867         disambiguate_loops_with_multiple_latches.
1868         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
1869         before fix_loop_structure.
1870         * cfgloop.c: Include pointer-set.h and output.h.
1871         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
1872         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
1873         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
1874         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
1875         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
1876         disambiguate_multiple_latches, get_loop_body_with_size,
1877         disambiguate_loops_with_multiple_latches): New functions.
1878         (flow_loop_dump): Dump multiple latch edges.
1879         (flow_loop_nodes_find): Handle loops with multiple latches.
1880         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
1881         (glb_enum_p): Modified.
1882         (get_loop_body): Use get_loop_body_with_size.
1883         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
1884         (AVOID_CFG_MODIFICATIONS): New constant.
1885         (disambiguate_loops_with_multiple_latches, add_loop,
1886         get_loop_body_with_size): Declare.
1887         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
1888
1889 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
1890
1891         PR inline-asm/28686
1892         * global.c (compute_regsets): New function.
1893         (global_alloc): Refactored ELIMINABLE_REGSET
1894         and NO_GLOBAL_ALLOC_REGS computation out.
1895         (rest_of_handle_global_alloc): Call compute_regsets()
1896         for non-optimizing case.
1897
1898 2007-02-06  Richard Henderson  <rth@redhat.com>
1899
1900         * config/i386/constraints.md (Y2): Rename from Y.
1901         (Yi): New constraint.
1902         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
1903         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
1904         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
1905         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
1906         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
1907         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
1908         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
1909         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
1910         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
1911         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
1912         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
1913         vec_extractv2si_1): Change Y constraints to Y2.
1914         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
1915         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
1916         Change Y constraints to Y2.
1917         (sse2_loadld): Change Y constraints to x.
1918
1919 2007-02-06  Roger Sayle  <roger@eyesopen.com>
1920
1921         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
1922         (parity<mode>2): New define_expand using rs6000_emit_parity.
1923         * config/rs6000/rs6000.c (rs6000_emit_popcount,
1924         rs6000_emit_parity): New functions.
1925         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
1926         rs6000_emit_parity): Prototype here.
1927
1928 2007-02-06  Ian Lance Taylor  <iant@google.com>
1929
1930         * lower-subreg.c (simple_move_operand): Reject CONST.
1931         (resolve_clobber): Call validate_change rather than directly
1932         assigning to XEXP (pat, 0).
1933
1934 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
1935
1936         * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
1937         (tree-ssa-reassoc.o): Add pointer-set.h dependency.
1938         (tree-cfg.o): Remove hashtab.h dependency.
1939
1940         * tree-ssa-loop-ivopts.c: Include pointer-set.h.
1941         (struct ivopts_data): Change niters to pointer_map_t.
1942         (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
1943         (niter_for_exit): Create pointer_map on demand.  Change for
1944         pointer_map API.
1945         (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
1946         (free_loop_data): Destroy data->niters if created and reset field.
1947         (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
1948         (tree_ssa_iv_optimize_loop): Check for presence of stale data.
1949
1950         * tree-ssa-reassoc.c: Include pointer-set.h.
1951         (bb_rank): Change to long *.
1952         (operand_rank): Change to pointer_map_t.
1953         (find_operand_rank): Return long, -1 if not found.  Declare as inline.
1954         (insert_operand_rank): Accept long.
1955         (operand_entry_hash, operand_entry_eq): Remove.
1956         (get_rank): Return long.  Adjust for changes above.
1957         (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
1958         and operand_rank.
1959         (fini_reassoc): Delete operand_rank with pointer_map_destroy.
1960
1961         * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
1962         (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
1963         (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
1964         is not NULL.
1965         (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
1966         directly since it cannot be NULL.
1967         (get_vi_for_tree): Rewrite for pointer_map API.
1968         (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
1969         (init_alias_vars): Create vi_for_tree as pointer_map.
1970         (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.
1971
1972         * tree-cfg.c: Don't include hashtab.h.
1973         (edge_to_cases): Declare as pointer_map.
1974         (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
1975         Delete.
1976         (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
1977         (start_recording_case_labels): Create edge_to_cases as pointer_map.
1978         (end_recoding_case_labels): Cleanup edge_to_cases manually before
1979         destroying it.
1980         (record_switch_edge): Delete.
1981         (get_cases_for_edge): Adjust for pointer_map API, inline
1982         record_switch_edge (rewritten for new API), remove goto.
1983
1984 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
1985
1986         * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
1987         * tree-nested.c: Include pointer-set.h.
1988         (var_map_elt, var_map_eq, var_map_hash): Delete.
1989         (struct nesting_info): Remove GTY marker.  Change the two htab_t's
1990         to pointer_map_t's.
1991         (nesting_info_bitmap_obstack): New.
1992         (lookup_field_for_decl): Adjust for pointer_map API.
1993         (lookup_tramp_for_decl): Adjust for pointer_map API.
1994         (get_nonlocal_debug_decl): Adjust for pointer_map API.
1995         (get_local_debug_decl): Adjust for pointer_map API.
1996         (convert_nl_goto_reference): Adjust for pointer_map API.
1997         (convert_nl_goto_receiver): Adjust for pointer_map API.
1998         (create_nesting_tree): Create outside GGC space.  Create bitmap on
1999         the new obstack.  Create field_map and var_map as pointer_maps.
2000         (free_nesting_tree): Adjust for changes to create_nesting_tree.
2001         (root): Delete.
2002         (lower_nested_functions): Move root here, no need to NULL it.
2003         Initialize and release the obstack.
2004
2005 2007-02-06  Paolo Bonzini  <bonzini@gnu.org>
2006
2007         * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
2008         Remove prototypes and make them non-static.
2009         (struct tree_int_map): Remove.
2010         * tree.h (struct tree_int_map): Move here, turning TO into an
2011         unsigned int.
2012         (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.
2013
2014         * tree.h (TREE_COMPLEXITY): Remove.
2015         (struct tree_exp): Remove complexity field.
2016         * tree.c (build1_stat): Don't set it.
2017
2018 2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
2019             Victor Kaplansky  <victork@il.ibm.com>
2020
2021         * tree-vectorizer.c (vect_is_simple_use): Support induction.
2022         (vect_is_simple_reduction): Support reduction with induction as
2023         one of the operands.
2024         (vect_is_simple_iv_evolution): Fix formatting.
2025         * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
2026         formatting.  Don't mark induction phis for vectorization.
2027         (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
2028         * tree-vect-transform.c (get_initial_def_for_induction): New function.
2029         (vect_get_vec_def_for_operand): Support induction.
2030         (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
2031         induction case.
2032         (vectorizable_reduction): Support reduction with induction as one of
2033         the operands.
2034         (vectorizable_type_demotion): Use def-type of stmt argument rather
2035         than dummy def-type.
2036
2037         * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
2038         flag_tree_scev_cprop.
2039         * common.opt (tree-scev-cprop): New flag.
2040
2041         * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
2042         call to vect_get_new_vect_var.
2043
2044 2007-02-06  Ira Rosen  <irar@il.ibm.com>
2045
2046         * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
2047         vectype is not NULL.
2048         (vect_pattern_recog_1): Likewise.
2049
2050 2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2051
2052         * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
2053         (fold_negate_expr): Likewise.
2054
2055 2007-02-05  Alexandre Oliva  <aoliva@redhat.com>
2056
2057         PR debug/30189
2058         * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
2059         even if cv-qualification is the same.
2060
2061 2007-02-05  Geoffrey Keating  <geoffk@apple.com>
2062
2063         * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
2064         __enable_execute_stack on completion.
2065
2066 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2067
2068         * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
2069         athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
2070         athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
2071         athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
2072         athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
2073         athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
2074         athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
2075         athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.
2076
2077 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2078
2079         * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
2080         cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
2081         swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
2082         fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
2083         x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
2084         floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
2085         floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
2086         mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
2087         umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
2088         umuldi3_highpart_rex64, umulsi3_highpart_insn,
2089         umulsi3_highpart_zext, smuldi3_highpart_rex64,
2090         smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
2091         x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
2092         sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
2093         sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
2094         sqrtextenddfxf2_i387): Added amdfam10_decode.
2095
2096         * config/i386/athlon.md (athlon_idirect_amdfam10,
2097         athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
2098         athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
2099         athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
2100         athlon_ivector_store_amdfam10): New define_insn_reservation.
2101         (athlon_idirect_loadmov, athlon_idirect_movstore): Added
2102         amdfam10.
2103
2104 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2105
2106         * config/i386/athlon.md (athlon_call_amdfam10,
2107         athlon_pop_amdfam10, athlon_lea_amdfam10): New
2108         define_insn_reservation.
2109         (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
2110         athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
2111         athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.
2112
2113 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2114
2115         * config/i386/athlon.md (athlon_sseld_amdfam10,
2116         athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
2117         athlon_mmxssest_short_amdfam10): New define_insn_reservation.
2118
2119 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2120
2121         * config/i386/athlon.md (athlon_sseins_amdfam10): New
2122         define_insn_reservation.
2123         * config/i386/i386.md (sseins): Added sseins to define_attr type
2124         and define_attr unit.
2125         * config/i386/sse.md: Set type attribute to sseins for insertq
2126         and insertqi.
2127
2128 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2129
2130         * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
2131         ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
2132         ssecomi_load_amdfam10, ssecomi_amdfam10,
2133         sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
2134         define_insn_reservation.
2135         (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.
2136
2137 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2138
2139         * config/i386/athlon.md (cvtss2sd_load_amdfam10,
2140         cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
2141         cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
2142         cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
2143         cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
2144         cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
2145         define_insn_reservation.
2146
2147         * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
2148         cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
2149         cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
2150         cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
2151         cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.
2152
2153 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2154
2155         * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
2156         athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
2157         athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
2158         (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
2159         athlon_ssemul_load_k8): Added amdfam10.
2160
2161 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2162
2163         * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
2164         (x86_sse_unaligned_move_optimal): New variable.
2165
2166         * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
2167         m_AMDFAM10.
2168         (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
2169         for unaligned vector SSE double/single precision loads for AMDFAM10.
2170
2171 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2172
2173         * config/i386/i386.h (TARGET_AMDFAM10): New macro.
2174         (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
2175         Define TARGET_CPU_DEFAULT_amdfam10.
2176         (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
2177         (processor_type): Add PROCESSOR_AMDFAM10.
2178
2179         * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
2180         processor_type in config/i386/i386.h.
2181         Enable imul peepholes for TARGET_AMDFAM10.
2182
2183         * config.gcc: Add support for --with-cpu option for amdfam10.
2184
2185         * config/i386/i386.c (amdfam10_cost): New variable.
2186         (m_AMDFAM10): New macro.
2187         (m_ATHLON_K8_AMDFAM10): New macro.
2188         (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
2189         x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
2190         x86_promote_QImode, x86_integer_DFmode_moves,
2191         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2192         x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
2193         x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
2194         x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
2195         x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
2196         Enable/disable for amdfam10.
2197         (override_options): Add amdfam10_cost to processor_target_table.
2198         Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
2199         processor_alias_table.
2200         (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
2201         (ix86_adjust_cost): Add code for amdfam10.
2202
2203 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2204
2205         * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
2206         instruction set feature flag. Add new (-mpopcnt) flag for popcnt
2207         instruction. Add new SSE4A (-msse4a) instruction set feature flag.
2208         * config/i386/i386.h: Add builtin definition for SSE4A.
2209         * config/i386/i386.md: Add support for ABM instructions
2210         (popcnt and lzcnt).
2211         * config/i386/sse.md: Add support for SSE4A instructions
2212         (movntss, movntsd, extrq, insertq).
2213         * config/i386/i386.c: Add support for ABM and SSE4A builtins.
2214         Add -march=amdfam10 flag.
2215         * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
2216         * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
2217         and amdfam10.
2218         * doc/extend.texi: Add documentation for SSE4A builtins.
2219
2220 2007-02-05  Bob Wilson  <bob.wilson@acm.org>
2221
2222         * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.
2223
2224 2007-02-05  Richard Guenther  <rguenther@suse.de>
2225
2226         * tree-vectorizer.h (vectorizable_function): Add argument type
2227         argument, change return type.
2228         * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
2229         * tree-vect-transform.c (vectorizable_function): Handle extra
2230         argument, return vectorized function decl.
2231         (build_vectorized_function_call): Remove.
2232         (vectorizable_call): Handle calls with result and argument types
2233         differing.  Handle loop vectorization factor correctly.
2234         * targhooks.c (default_builtin_vectorized_function): Adjust for
2235         extra argument.
2236         * targhooks.h (default_builtin_vectorized_function): Likewise.
2237         * target.h (builtin_vectorized_function): Add argument type
2238         argument.
2239         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2240         extra argument, allow vectorizing of lrintf.
2241         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
2242         documentation of target hook.
2243
2244 2007-02-05  Hans-Peter Nilsson  <hp@axis.com>
2245
2246         PR target/30665
2247         * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
2248         ("*andhi_clear", andu (casesi+45)): For size-changed operand where
2249         memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.
2250
2251 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2252
2253         * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
2254         BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
2255         <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
2256         * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
2257         before canonicalizing sincos to cexpi.
2258         (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
2259
2260 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2261
2262         * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
2263         Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
2264         (alpha_init_builtins): Use alpha_add_builtins to process tables.
2265
2266 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2267
2268         * mips-tfile.c (initialize_init_file): Correct endianness test.
2269
2270 2007-02-05  Kazu Hirata  <kazu@codesourcery.com>
2271
2272         * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
2273         the 'y' constraint.
2274
2275 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2276
2277         * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
2278         saves in a PARALLEL before the register assignments.
2279
2280 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2281
2282         * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
2283         DWARF_FRAME_RETURN_COLUMN to be a general register.
2284         * dwarf2out.c (init_return_column_size): New function, split from...
2285         (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
2286         DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
2287         to be nongeneral registers.
2288         * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
2289         integer registers.
2290         (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
2291         (DWARF_ALT_FRAME_RETURN_COLUMN): Define.
2292
2293 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2294
2295         * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.
2296
2297 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2298
2299         * cfgloopmanip.c (loop_delete_branch_edge): Removed.
2300         (remove_path): Use can_remove_branch_p and remove_branch instead
2301         of loop_delete_branch_edge.
2302         * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
2303         (tree_transform_and_unroll_loop): Remove dead branches immediately.
2304         Update profile using scale_dominated_blocks_in_loop.
2305         * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
2306         * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
2307         (can_remove_branch_p, remove_branch): Declare.
2308         * tree-cfg.c (tree_can_remove_branch_p): New function.
2309         (tree_cfg_hooks): Add tree_can_remove_branch_p.
2310         * cfgrtl.c (rtl_can_remove_branch_p): New function.
2311         (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.
2312
2313 2007-02-05  Jan Hubicka  <jh@suse.cz>
2314
2315         PR middle-end/30696
2316         * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
2317         nodes in cgraph, don't remove offline copy of the function.
2318
2319 2007-02-04  Jan Hubicka  <jh@suse.cz>
2320
2321         * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
2322         vectors might cause maybe_lookup_element_for_expr to be called
2323         on non-sra-candidate.
2324
2325 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2326
2327         * config/bfin/bfin-modes.def, config/bfin/bfin.c,
2328         config/bfin/bfin.md, config/bfin/predicates.md: Follow
2329         spelling conventions.
2330
2331 2007-02-04  Richard Guenther  <rguenther@suse.de>
2332
2333         PR middle-end/30636
2334         * fold-const.c (try_move_mult_to_index): Make sure to not
2335         overflow one dimension of a multi-dimensional array access.
2336
2337 2007-02-04  Jan Hubicka  <jh@suse.cz>
2338
2339         * passes.c (init_optimization_passes): Reindent.
2340
2341 2007-02-04  Jan Hubicka  <jh@suse.cz>
2342             Eric Botcazou  <ebotcazou@adacore.com>
2343
2344         * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
2345         (execute_fixup_cfg): Break out the abnormal goto code.
2346         * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
2347         (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
2348         (optimize_inline_calls): Call make_nonlocal_label_edges.
2349
2350 2007-02-04  Jan Hubicka  <jh@suse.cz>
2351
2352         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
2353         true when something was changed.
2354         (rename_ssa_copies): When something was changed, do
2355         TODO_remove_unused_locals.
2356         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
2357         add TODO_remove_unused_locals when instruction was removed.
2358
2359 2007-02-04  Jan Hubicka  <jh@suse.cz>
2360
2361         * ipa-inline.c (try_inline): Improve debug output; work on already
2362         inline edges too.
2363         (cgraph_decide_inlining_incrementally): Indent; improve debug output;
2364         call try_inline for already inlined edges too when flattening;
2365         inline also functions that make callee growth but overall unit size
2366         reduce.
2367
2368 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2369
2370         * config/m32c/bitops.md, config/m32c/jump.md,
2371         config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
2372         config/m32r/m32r.h, config/m32r/m32r.md,
2373         config/m32r/predicates.md, config/m68hc11/larith.asm,
2374         config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
2375         config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
2376         config/mips/mips-protos.h, config/mips/mips.c,
2377         config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
2378         config/mn10300/mn10300.h, config/mn10300/predicates.md,
2379         config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
2380         spelling conventions.
2381
2382         * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
2383         Follow spelling conventions.
2384
2385 2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>
2386
2387         * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
2388         warn about C++0x compatibility.
2389
2390 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2391
2392         * config/h8300/h8300.c, config/h8300/h8300.h,
2393         config/h8300/h8300.md: Follow spelling conventions.
2394
2395 2007-02-03  Uros Bizjak  <ubizjak@gmail.com>
2396
2397         PR middle-end/30667
2398         * combine.c (try_combine): Do not substitute source operand
2399         with constants wider than 2 * HOST_BITS_PER_WIDE_INT.
2400
2401 2007-02-03  Jan Hubicka  <jh@suse.cz>
2402
2403         PR gcov-profile/30650
2404         * value-prof.c (stringop_block_profile): Fix handling of size counter;
2405         do not divide by zero for never executed counters.
2406         (tree_find_values_to_profile): Fix counters.
2407         * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2408
2409 2007-02-03  Ian Lance Taylor  <iant@google.com>
2410
2411         * lower-subreg.c (simple_move_operand): New static function,
2412         broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
2413         operands.
2414         (simple_move): Call simple_move_operand.
2415         (find_decomposable_subregs): Add special handling of MEMs.
2416         (can_decompose_p): Rename from cannot_decompose_p.  Reverse
2417         meaning of return value.  If we see a hard register, test whether
2418         it can store a word_mode value.  Change all callers.
2419
2420 2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2421
2422         * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
2423         ftrapv insns and expanders.
2424         (subdi3): Change define_expand operand 1 to arith11_operand, and
2425         operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
2426         pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
2427         handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
2428         respectively.
2429
2430         PR middle-end/30174
2431         * varasm.c (notice_global_symbol): Treat global objects as weak when
2432         flag_shlib is true.
2433
2434 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2435
2436         * emit-rtl.c (dconstpi): Delete.
2437         (dconstsqrt2): New.
2438         (init_emit_once): Delete dconstpi and init dconstsqrt2.
2439         * real.h (dconstpi): Delete.
2440         (dconstsqrt2): New.
2441         * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
2442         (fold_builtin_hypot): Likewise.
2443
2444 2007-02-03  Tom Tromey  <tromey@redhat.com>
2445
2446         PR driver/30246
2447         * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
2448         -gcoff3, -gxcoff3, -gvms3 implies -dD.
2449
2450 2007-02-03  Kazu Hirata  <kazu@codesourcery.com>
2451
2452         * c-decl.c, config/avr/avr.c, config/avr/avr.h,
2453         config/m68k/m68k.c, config/m68k/netbsd-elf.h,
2454         config/mn10300/mn10300.c, config/pdp11/pdp11.h,
2455         config/rs6000/cell.md, config/rs6000/darwin.h,
2456         config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
2457         config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
2458         jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
2459         tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
2460         typos.  Follow spelling conventions.
2461         * doc/invoke.texi: Follow spelling conventions.
2462
2463 2007-02-03  Roger Sayle  <roger@eyesopen.com>
2464
2465         * simplify-rtx.c (simplify_relational_operation_1): Implement some
2466         canonicalization transformations that attempt to simplify integer
2467         constant comparisons to become comparisons against zero.
2468
2469 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2470
2471         * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
2472         fabs(x)*sqrt(2).
2473         * fold-const.c (fold_binary): Fix comment typos.  Fold complex
2474         (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).
2475
2476 2007-02-02  Mike Stump  <mrs@apple.com>
2477
2478         * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
2479         * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
2480         (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
2481         generate a branch island.
2482
2483 2007-02-02  Bob Wilson  <bob.wilson@acm.org>
2484
2485         * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
2486         (xtensa_legitimate_address_p): New.
2487         (xtensa_legitimize_address): New.
2488         (xtensa_output_addr_const_extra): New.
2489         * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
2490         (BASE_REG_P): New.
2491         (REG_OK_FOR_BASE_P): Use BASE_REG_P.
2492         (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
2493         (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
2494         (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
2495         * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
2496         (xtensa_legitimize_address): New.
2497         (xtensa_output_addr_const_extra): New.
2498
2499 2007-02-02  Steve Ellcey  <sje@cup.hp.com>
2500
2501         * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
2502
2503 2007-02-02  Ian Lance Taylor  <iant@google.com>
2504
2505         * expmed.c (expand_divmod): Add comment.
2506
2507 2007-02-02  Kazu Hirata  <kazu@codesourcery.com>
2508
2509         * emit-rtl.c (renumber_insns): Remove.
2510         * flags.h: Remove the extern for flag_renumber_insns.
2511         * rtl.h: Remove the prototype for renumber_insns.
2512         * toplev.c (flag_renumber_insns): Remove.
2513
2514 2007-02-02  Hui-May Chang  <hm.chang@apple.com>
2515
2516         Revert for x86 darwin:
2517         2005-06-19  Uros Bizjak  <uros@kss-loka.si>
2518
2519         * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
2520         code before the following patch under TARGET_MACHO.
2521         (ix86_function_value_regno_p): Likewise.
2522
2523 2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2524
2525         * fold-const.c (negate_expr_p, fold_negate_expr): Handle
2526         COMPLEX_EXPR.
2527
2528 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2529
2530         PR target/29682
2531         * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
2532         general or fp registers.  Add comments.
2533         * config/ia64/ia64.md (reg_pred_prefix): Add comment.
2534
2535 2007-02-02  Paolo Bonzini  <bonzini@gnu.org>
2536
2537         * pointer-set.c (insert_aux): Only return insertion slot.
2538         (pointer_set_insert): Adjust.
2539         (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
2540         pointer_map_destroy, pointer_map_insert, pointer_map_contains,
2541         pointer_map_traverse): New.
2542         * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
2543         pointer_map_create,  pointer_map_destroy, pointer_map_insert,
2544         pointer_map_contains, pointer_map_traverse): Declare.
2545
2546 2007-02-02  Jakub Jelinek  <jakub@redhat.com>
2547
2548         PR middle-end/30473
2549         * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
2550         sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).
2551
2552 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2553
2554         * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
2555
2556         (struct _dep): New type.
2557         (dep_t): New typedef.
2558         (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
2559         (DEP_STATUS): New access macro.  The macro with the same name was
2560         renamed to DEP_LINK_STATUS.
2561         (dep_init): Declare function
2562
2563         (struct _dep_link): New type.
2564         (dep_link_t): New typedef.
2565         (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
2566         (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
2567         (DEP_LINK_STATUS): New macro.
2568         (debug_dep_links): New debug function.
2569
2570         (struct _deps_list): New type.
2571         (deps_list_t): New typedef.
2572         (DEPS_LIST_FIRST): New access macro.
2573         (FOR_EACH_DEP_LINK): New cycle macro.
2574         (create_deps_list, free_deps_list, delete_deps_list): Declare
2575         functions.
2576         (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
2577         (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
2578         (copy_deps_list_change_con): Ditto.
2579
2580         (move_dep_link): Declare function.
2581
2582         (struct _dep_node): New type.
2583         (dep_node_t): New typedef.
2584         (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
2585
2586         (struct haifa_insn_data.back_deps): New field to hold backward
2587         dependencies of the insn.
2588         (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
2589         to deps_list_t.
2590         (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
2591         Change its type to deps_list_t.
2592         (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
2593         (INSN_DEPEND): Rename to INSN_FORW_DEPS.
2594         (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
2595
2596         (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
2597
2598         (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.
2599
2600         (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
2601         all callers.
2602         (dep_cost): Declare.
2603
2604         * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
2605         (ds_to_dk, dk_to_ds): New functions.
2606
2607         (init_dep_1): New static function.
2608         (init_dep): New function.
2609         (copy_dep): New static function.
2610
2611         (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
2612         functions.
2613         (detach_dep_link): New static function.
2614         (move_dep_link): New function.
2615
2616         (dep_links_consistent_p, dump_dep_links): New static functions.
2617         (debug_dep_links): New debugging function.
2618
2619         (deps_obstack, dl_obstack, dn_obstack): New static variables.
2620
2621         (alloc_deps_list, init_deps_list): New static functions.
2622         (create_deps_list): New function.
2623         (clear_deps_list): New static function.
2624         (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
2625         (deps_list_consistent_p, dump_deps_list): New static functions.
2626         (debug_deps_list): New function.
2627         (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
2628         functions.
2629         (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
2630
2631         (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
2632         use new scheduler dependencies lists.
2633         (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
2634         (sched_analyze): Ditto.  Initialize dependencies lists.
2635         (add_forw_dep, compute_forward_dependences): Update to use new
2636         scheduler dependencies lists.
2637
2638         (init_dependency_caches): Init deps_obstack.
2639         (free_dependency_caches): Free deps_obstack.
2640
2641         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
2642         new scheduler dependencies lists.
2643         (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
2644         (add_back_forw_dep, delete_back_forw_dep): Ditto.
2645
2646         * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
2647         Update to use new scheduler dependencies lists.
2648         (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
2649         (debug_dependencies): Ditto.
2650         (schedule_region): Update comments.
2651
2652         * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
2653         scheduler dependencies lists.
2654         (schedule_ebb): Update comments.
2655
2656         * rtl.def (DEPS_LIST): Remove.
2657
2658         * lists.c (unused_deps_list): Remove.
2659         (free_list): Update assertions.
2660
2661         (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
2662         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2663
2664         * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
2665         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2666
2667         * haifa-sched.c (comments): Update.
2668         (insn_cost1): Remove.  Inline the code into insn_cost ().
2669         (insn_cost): Update to use new scheduler dependencies lists.  Move
2670         processing of the dependency cost to dep_cost ().
2671         (dep_cost): New function.  Use it instead of insn_cost () when
2672         evaluating cost of the dependency.  Use compatible interface to
2673         interact with the target.
2674         (priority): Update to use new scheduler dependencies lists.
2675         (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
2676         with greater number of insns that depend on the insn.
2677         (schedule_insn): Update to use new scheduler dependencies lists.  Add
2678         code to free backward dependencies lists.  Inline and optimize code
2679         from resolve_dep () - see PR28071.
2680         (ok_for_early_queue_removal): Update to use new scheduler dependencies
2681         lists.  Update call to targetm.sched.is_costly_dependence hook.
2682
2683         (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
2684         scheduler dependencies lists.
2685
2686         (resolve_dep): Remove.  Move the logic to schedule_insn ().
2687         (init_h_i_d): Initialize dependencies lists.
2688
2689         (process_insn_depend_be_in_spec): Rename to
2690         process_insn_forw_deps_be_in_spec.  Update to use new scheduler
2691         dependencies lists.
2692         (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
2693         Update to use new scheduler dependencies lists.
2694         (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
2695
2696         * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
2697         new scheduler dependencies lists.
2698         (build_intra_loop_deps): Ditto.
2699
2700         * target.h (struct _dep): Declare to use in
2701         gcc_target.sched.is_costly_dependence.
2702         (struct gcc_target.sched.adjust_cost): Fix typo.
2703         (struct gcc_target.sched.is_costly_dependence): Change signature to use
2704         single dep_t parameter instead of an equivalent triad.
2705         (struct gcc_target.sched.adjust_cost_2): Remove.
2706
2707         * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
2708
2709         * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
2710
2711         * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
2712         documentation.
2713         (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
2714
2715         * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
2716         (REG_DEP_TRUE): Document.
2717
2718         * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
2719         Change signature to correspond to the targetm.sched.adjust_cost hook.
2720         Update use in TARGET_SCHED_ADJUST_COST_2.
2721         (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
2722         (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
2723         new scheduler dependencies lists.
2724         (ia64_gen_check): Ditto.
2725
2726         * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
2727         dependencies lists.
2728
2729         * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
2730         signature to correspond to the targetm.sched.is_costly_dependence hook.
2731         (is_costly_group): Update to use new scheduler dependencies lists.
2732
2733         * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
2734         instead of INSN_COST () macro.
2735
2736 2007-02-01  Ian Lance Taylor  <iant@google.com>
2737
2738         * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
2739
2740 2007-02-01  Guy Martin  <gmsoft@gentoo.org>
2741
2742         * pa.md (tp_load): Correct mfctl instruction syntax.
2743
2744 2007-02-01  Geoffrey Keating  <geoffk@apple.com>
2745
2746         * config/rs6000/rs6000.c (rs6000_stack_info): Correct
2747         altivec_padding_size calculation on AIX.  Improve comment, add
2748         assert to verify that it's right.
2749
2750         * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
2751         64-bit.
2752
2753 2007-2-01  Seongbae Park  <seongbae.park@gmail.com>
2754
2755         PR inline-asm/28686
2756         * global.c (global_alloc): Add mising initialization of
2757         ELIMINABLE_REGSET.
2758
2759 2007-02-01  Roger Sayle  <roger@eyesopen.com>
2760
2761         * alias.c (init_alias_analysis): Correct whitespace.
2762         * bb-reorder.c (fix_edges_for_rarely_executed_code,
2763         partition_hot_cold_basic_blocks): Likewise.
2764         * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
2765         expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
2766         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
2767         fold_builtin_snprintf_chk, fold_builtin_printf,
2768         fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
2769         do_mpfr_arg3, do_mpfr_sincos): Likewise.
2770         * cfgcleanup.c (cleanup_cfg): Likewise.
2771         * cfgexpand.c (tree_expand_cfg): Likewise.
2772         * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
2773         * function.c (get_next_funcdef_no): Likewise.
2774         * gengtype.c (main): Likewise.
2775         * genmodes.c (main): Likewise.
2776         * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
2777         * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
2778         * ifcvt.c (noce_emit_move_insn): Likewise.
2779         * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
2780         Likewise.
2781         * stor-layout.c (get_best_mode): Likewise.
2782         * tree-ssa-loop-niter.c (get_val_for): Likewise.
2783         * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
2784         scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
2785         perform_var_substitution, solve_graph): Likewise.
2786         * tree-vrp.c (vrp_finalize): Likewise.
2787
2788 2007-02-01  Ian Lance Taylor  <iant@google.com>
2789
2790         * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
2791         high part of a paradoxical subreg, return a constant zero.
2792
2793 2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>
2794
2795         * toplev.c (lang_dependent_init): Call init_set_costs.
2796         * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
2797
2798 2007-02-01  Richard Guenther  <rguenther@suse.de>
2799
2800         PR middle-end/30656
2801         * fold-const.c (fold_negate_expr): Allow negating a
2802         constant if overflow does not change.
2803
2804 2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2805
2806         * doc/c-tree.texi (Expression trees): Improve markup.
2807         * doc/tm.texi (Register Classes, Addressing Modes)
2808         (Floating Point): Fix spacing after abbreviations.  Fix some
2809         typos.
2810
2811 2007-02-01  Ben Elliston  <bje@au.ibm.com>
2812
2813         * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
2814         * doc/contrib.texi: Likewise.
2815         * doc/install.texi: Likewise.
2816
2817 2007-01-31  Richard Henderson  <rth@redhat.com>
2818             Ian Lance Taylor  <iant@google.com>
2819
2820         * lower-subreg.c: New file.
2821         * rtl.def (CONCATN): Define.
2822         * passes.c (init_optimization_passes): Add pass_lower_subreg and
2823         pass_lower_subreg2.
2824         * emit-rtl.c (update_reg_offset): New static function, broken out
2825         of gen_rtx_REG_offset.
2826         (gen_rtx_REG_offset): Call update_reg_offset.
2827         (gen_reg_rtx_offset): New function.
2828         * regclass.c: Revert patch of 2006-03-05, restoring
2829         reg_scan_update.
2830         (clear_reg_info_regno): New function.
2831         * dwarf2out.c (concatn_loc_descriptor): New static function.
2832         (loc_descriptor): Handle CONCATN.
2833         * common.opt (fsplit_wide_types): New option.
2834         * opts.c (decode_options): Set flag_split_wide_types when
2835         optimizing.
2836         * timevar.def (TV_LOWER_SUBREG): Define.
2837         * rtl.h (gen_reg_rtx_offset): Declare.
2838         (reg_scan_update): Declare.
2839         * regs.h (clear_reg_info_regno): Declare.
2840         * tree-pass.h (pass_lower_subreg): Declare.
2841         (pass_lower_subreg2): Declare.
2842         * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
2843         (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
2844         -fsplit-wide-types.
2845         * doc/rtl.texi (Regs and Memory): Document concat and concatn.
2846         * Makefile.in (OBJS-common): Add lower-subreg.o.
2847         (lower-subreg.o): New target.
2848
2849 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2850
2851         * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
2852
2853 2007-01-31  Anatoly Sokolov <aesok@post.ru>
2854
2855         PR target/19087
2856         * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
2857
2858 2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2859
2860         PR middle-end/29335
2861         * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.
2862
2863 2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>
2864
2865         * cfgloop.h: Include vec-prim.h.
2866         (enum li_flags): Remove LI_ONLY_OLD.
2867         (loop_iterator): Changed.
2868         (fel_next, fel_init): Iterate over loop tree.
2869         (FOR_EACH_LOOP_BREAK): New macro.
2870         * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
2871         FOR_EACH_LOOP.
2872         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
2873         * modulo-sched.c (sms_schedule): Ditto.
2874         * tree-vectorizer.c (vectorize_loops): Ditto.
2875         * doc/loop.texi: Update information on loop numbering and behavior of
2876         FOR_EACH_LOOP wrto new loops.
2877         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2878         add_to_evolution_1): Test nestedness of loops instead of comparing
2879         their numbers.
2880         * tree-chrec.c (chrec_fold_plus_poly_poly,
2881         chrec_fold_multiply_poly_poly, chrec_evaluate,
2882         hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
2883         reset_evolution_in_loop): Ditto.
2884         * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.
2885
2886 2007-01-31  Dirk Mueller  <dmueller@suse.de>
2887
2888         * c-common.c (warn_about_parentheses): Separate warning about
2889         un-parenthized sequence of comparison operators from the one
2890         which is supposed to warn about x <= y <= z.
2891
2892 2007-01-31  Uros Bizjak  <ubizjak@gmail.com>
2893
2894         * optabs.h (enum optab_index): Add new OTI_isinf.
2895         (isinf_optab): Define corresponding macro.
2896         * optabs.c (init_optabs): Initialize isinf_optab.
2897         * genopinit.c (optabs): Implement isinf_optab using isinf?f2
2898         patterns.
2899         * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
2900         (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
2901         using isinf_optab.
2902         (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
2903         expand_builtin_interclass_mathfn.
2904         * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
2905         * config/i386/i386.md (UNSPEC_FXAM): New constant.
2906         (fxam<mode>2_i387): New insn pattern.
2907         (isinf<mode>2) New expander to implement isinf, isinff and isinfl
2908         built-in functions as x87 inline asm.
2909
2910 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2911
2912         * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.
2913
2914 2007-01-30  Eric Christopher  <echristo@apple.com>
2915
2916         * config.gcc: Add geode.
2917
2918 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2919
2920         * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
2921         ipa-inline.c, tree-profile.c, tree-ssa-live.c,
2922         tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
2923         value-prof.c: Fix comment typos.
2924
2925 2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2926
2927         PR c++/24745
2928         * doc/invoke.texi (Wpointer-arith): Document warning.
2929
2930 2007-01-30  Janis Johnson  <janis187@us.ibm.com>
2931
2932         * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
2933         the list of discrepancies from the draft TR.
2934
2935 2007-01-30  Dirk Mueller  <dmueller@suse.de>
2936
2937         PR c++/30601
2938         * doc/invoke.texi (-Wreturn-type): Update description to
2939         match new behavior.
2940
2941 2007-01-30  Richard Sandiford  <richard@codesourcery.com>
2942
2943         * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
2944
2945 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
2946
2947         * builtins.c (expand_builtin_int_interclass_roundingfn): New function
2948         to handle optabs that operate on floating point input argument and
2949         output to integer output.
2950         (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
2951         (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
2952         (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
2953         expand_builtin_interclass_mathfn ().
2954         * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
2955         (ilogbsi2): Remove.
2956         (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
2957         ilogbl built-in functions as x87 intrinsics.
2958
2959 2007-01-30  Richard Guenther  <rguenther@suse.de>
2960
2961         PR middle-end/27657
2962         * dwarf2out.c (reference_to_unused): Query varpool if the
2963         variable was output.
2964
2965 2007-01-30  Richard Guenther  <rguenther@suse.de>
2966
2967         PR middle-end/30313
2968         * passes.c (execute_one_pass): Reset in_gimple_form to not
2969         confuse non-unit-at-a-time mode.
2970
2971 2007-01-29  Roger Sayle  <roger@eyesopen.com>
2972             Richard Guenther  <rguenther@suse.de>
2973
2974         * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
2975         avoid undefined behaviour on overflow.  Use force_fit_type_double
2976         to construct the constant with the specified TREE_OVERFLOW.
2977
2978 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
2979
2980         * config/dfp-bit.c: Add parameterized support for fp exceptions.
2981         * config/dfp-bit.h: Ditto.
2982
2983 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2984
2985         * c-decl.c (pop_scope): Replace warnings with call to
2986         warn_for_unused_label.
2987         * c-common.h (warn_for_unused_label): Declare.
2988         * c-common.c (warn_for_unused_label): Define.
2989
2990 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2991
2992         * tree-optimize.c (update_inlined_to_pointers): Delete unused
2993         function.
2994
2995 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
2996
2997         * Makefile.in (USER_H): Remove decfloat.h.
2998         * ginclude/decfloat.h: Delete, moving contents to ...
2999         * ginclude/float.h: Add support for decimal floating point,
3000         guarded by __STDC_WANT_DEC_FP__.
3001
3002 2007-01-29  Mike Stump  <mrs@apple.com>
3003
3004         * doc/gccint.texi (Top): Rename Loop Representation to Loop
3005         Analysis and Representation to resolve case insensitive conflict.
3006         * doc/loop.texi (Loop Analysis and Representation): Likewise.
3007
3008 2007-01-28  Daniel Berlin  <dberlin@dberlin.org>
3009
3010         * tree.h (struct tree_memory_tag): Add aliases member.
3011         (MTAG_ALIASES): New macro.
3012         * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
3013         (add_may_alias): Remove pointer-set. Update for may_aliases being
3014         a bitmap.
3015         (mark_aliases_call_clobbered): Update for may_aliases being a
3016         bitmap.
3017         (compute_tag_properties): Ditto.
3018         (create_partition_for): Ditto.
3019         (compute_memory_partitions): Ditto.
3020         (dump_may_aliases_for): Ditto.
3021         (is_aliased_with): Ditto.
3022         (add_may_alias_for_new_tag): Ditto.
3023         (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
3024         (compute_is_aliased): New function.
3025         (compute_may_aliases): Call compute_is_aliased).
3026         (init_alias_info): Initialize alias_bitmap_obstack.
3027         (union_alias_set_into): New function.
3028         (compute_flow_sensitive_aliasing): Use union_aliases_into.
3029         (have_common_aliases_p): Rewrite to take two bitmaps and use
3030         intersection.
3031         (compute_flow_insensitive_aliasing): Stop using pointer-sets.
3032         Update for bitmaps.
3033         (finalize_ref_all_pointers): Update for add_may_alias changes.
3034         (new_type_alias): Ditto.
3035         * tree-flow-inline.h (may_aliases): Return a bitmap.
3036         * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
3037         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
3038         may_aliases being a bitmap.
3039         * tree-flow.h (struct var_ann_d): Remove may_aliases member.
3040         may_aliases now returns a bitmap.
3041         * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
3042         being a bitmap.
3043         * tree-ssa-operands.c (add_virtual_operand): Update for
3044         may_aliases being a bitmap.
3045
3046 2007-01-29  Daniel Berlin  <dberlin@dberlin.org>
3047
3048         PR tree-optimization/30630
3049         * tree-ssa-structalias.c (do_complex_constraint): Mark correct
3050         variable as changed.
3051
3052 2007-01-29  Simon Martin  <simartin@users.sourceforge.net>
3053
3054         PR c++/28266
3055         * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
3056         expanded only once even if an error occurs.
3057
3058 2007-01-29  Ben Elliston  <bje@au.ibm.com>
3059
3060         * gcov-io.h (__gcov_indirect_call_profiler): Declare.
3061         (__gcov_average_profiler): Likewise.
3062         (__gcov_ior_profiler): Likewise.
3063         (__gcov_merge_ior): Likewise.
3064
3065 2007-01-28  Jan Hubicka  <jh@suse.cz>
3066
3067         * builtins.c (expand_builtin_memset): Fix typo in my last patch.
3068         * value-prof.c (stringop_block_profile): Likewise.
3069
3070 2007-01-28  Jan Hubicka  <jh@suse.cz>
3071
3072         * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
3073         variant handling histograms; add wrapper.
3074         (clear_storage_via_libcall): Export.
3075         (emit_block_move_hints): Break out from ...; add histograms.
3076         (emit_block_move): ... this one.
3077         (clear_storage_hints): Break out from ...; add histograms.
3078         (clear_storage): ... this one.
3079         (set_storage_via_memset): Handle histogram.
3080         * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
3081         (clear_storage_hints, clear_storage_via_libcall): Declare.
3082         (set_storage_via_setmem): Update prototype.
3083         * doc/md.texi (movmem, setmem): Document new arguments.
3084
3085         * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
3086         new histograms.
3087         (stringop_block_profile): New global function.
3088         (tree_stringops_values_to_profile): Profile block size and alignment.
3089         * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
3090         HIST_TYPE_IOR.
3091         (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
3092         (stringop_block_profile): Declare.
3093         * builtins.c: Include value-prof.h.
3094         (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
3095         * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
3096         (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
3097         (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
3098         * profile.c (instrument_values): Add new counters.
3099         * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
3100         calls.
3101         * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
3102         (tree_init_edge_profiler): Build new profilers.
3103         (tree_gen_average_profiler, tree_gen_ior_profiler): New.
3104         (pass_tree_profile): Add dump.
3105         (tree_profile_hooks): Update.
3106         * Makefile.in (LIBGCOV): Add new constants.
3107         * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
3108         __gcov_ior_profiler): New.
3109         * i386.md (movmem/setmem expanders): Add new optional arguments.
3110
3111 2007-01-28  David Edelsohn  <edelsohn@gnu.org>
3112
3113         * doc/md.texi (Standard Pattern Names): Document blockage pattern.
3114
3115 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3116
3117         * tree-ssa-loop-unswitch.c: Include tree-inline.h.
3118         (tree_unswitch_single_loop): Pass eni_size_weights to
3119         tree_num_loop_insns.
3120         * tree-ssa-loop-manip.c: Include tree-inline.h.
3121         (can_unroll_loop_p): Pass eni_size_weights to
3122         tree_num_loop_insns.
3123         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
3124         Pass eni_size_weights to estimate_num_insns.
3125         * tree.h (init_inline_once): Export.
3126         * toplev.c (backend_init): Call init_inline_once.
3127         * cgraphunit.c (cgraph_process_new_functions,
3128         cgraph_analyze_function): Pass eni_inlining_weights to
3129         estimate_num_insns.
3130         * ipa-inline.c (compute_inline_parameters): Ditto.
3131         * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
3132         to estimate_num_insns.
3133         (try_unroll_loop_completely): Pass eni_size_weights to
3134         tree_num_loop_insns.
3135         * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
3136         ot estimate_num_insns.
3137         * tree-ssa-loop-prefetch.c: Include tree-inline.h.
3138         (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
3139         * tree-inline.c (eni_inlining_weights, eni_size_weights,
3140         eni_time_weights): New variables.
3141         (init_inline_once): Initialize them.
3142         (struct eni_data): Mew.
3143         (estimate_num_insns_1, estimate_num_insns): Use weights.
3144         * tree-inline.h (struct eni_weights_d): New.
3145         (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
3146         (estimate_num_insns): Declaration changed.
3147         * cfgloop.h (tree_num_loop_insns): Declaration changed.
3148         * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
3149         tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.
3150
3151 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3152
3153         * tree-data-ref.c (conflict_fn): Assert that the number of affine
3154         relations in the conflict function is valid.
3155
3156 2007-01-27  Ian Lance Taylor  <iant@google.com>
3157
3158         * common.opt: Add fstrict-overflow.
3159         * opts.c (decode_options): Set flag_strict_overflow if -O2.
3160         * flags.h (TYPE_OVERFLOW_WRAPS): Define.
3161         (TYPE_OVERFLOW_UNDEFINED): Define.
3162         (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
3163         Replace all uses.
3164         * tree.h (TYPE_TRAP_SIGNED): Don't define.
3165         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
3166         (fold_negate_expr): Likewise.
3167         (make_range): Likewise.
3168         (extract_muldiv_1): Likewise.
3169         (maybe_canonicalize_comparison): Likewise.
3170         (fold_comparison): Likewise.
3171         (fold_binary): Likewise.
3172         (tree_expr_nonnegative_p): Likewise.
3173         (tree_expr_nonzero_p): Likewise.
3174         * tree-vrp.c (compare_values): Likewise.
3175         (extract_range_from_binary_expr): Likewise.
3176         (extract_range_from_unary_expr): Likewise.
3177         * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
3178         Likewise.
3179         (nowrap_type_p): Likewise.
3180         * tree-scalar-evolution.c (simple_iv): Likewise.
3181         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
3182         (build_range_check): Likewise.
3183         (extract_muldiv_1): Likewise.
3184         (fold_comparison): Likewise.
3185         * tree-vrp.c (vrp_int_const_binop): Likewise.
3186         (extract_range_from_unary_expr): Likewise.
3187         * convert.c (convert_to_integer): Likewise.
3188         * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
3189         (fold_comparison): Likewise.
3190         (fold_binary): Likewise.
3191         * optabs.c (optab_for_tree_code): Likewise.
3192         * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
3193         * simplify-rtx.c (simplify_const_relational_operation): Check
3194         flag_strict_overflow and flag_trapv.
3195         (simplify_const_relational_operation): Likewise.
3196         * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
3197         (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
3198         -fstrict-overflow.
3199
3200 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3201
3202         * tree.c (tree_fold_gcd): Delete.
3203         * tree.h (tree_fold_gcd): Remove prototype.
3204         * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
3205         test whether one constant integer is a multiple of another.  Instead
3206         call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
3207         * fold-const.c (multiple_of_p):  We've determined both TOP and
3208         BOTTOM are integer constants so we can call int_const_binop directly
3209         instead of the more generic const_binop.
3210
3211 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3212
3213         * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
3214         1*X check that the constant hasn't overflowed, to preserve the
3215         TREE_OVERFLOW bit.
3216         (round_up): Provide an efficient implementation when rouding-up an
3217         INTEGER_CST to a power-of-two.
3218
3219 2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3220
3221         * doc/sourcebuild.texi: Add comma for clarity.
3222         * doc/extend.texi: Fix some typos.
3223         * doc/passes.texi: Likewise.
3224         * doc/cppinternals.texi: Likewise.
3225         * doc/c-tree.texi: Likewise.
3226         * doc/tree-ssa.texi: Likewise.
3227         * doc/install.texi: Likewise.
3228
3229 2007-01-27  Jan Hubicka  <jh@suse.cz>
3230
3231         * tree-sra.c (sra_walk_function): Don't rely on aliases being build.
3232         (pass_sra): Do not require alias information.
3233         * passes.c (init_optimization_passes): Add SRA
3234
3235 2007-01-27  Steven Bosscher  <steven@gcc.gnu.org>
3236
3237         * tracer.c (rest_of_handle_tracer): We already cleaned
3238         up the CFG in tracer() so don't do it here again.
3239         * cfgcleanup.c (rest_of_handle_jump2): Don't repeat
3240         cleanup_cfg here, either.  And don't call renumber_insns.
3241
3242         * cfgrtl.c (rtl_verify_flow_info_1): Don't verify that BB_END
3243         and BB_HEAD are in the insn stream here.  Instead make sure
3244         that BB_INSN is valid on all insns.  Also, do check here that
3245         there are no pending branch predictions...
3246         (rtl_verify_flow_info): ...instead of doing it here.  Checks
3247         for BB_END and BB_HEAD moved from rtl_verify_flow_info_1 to
3248         here.
3249
3250 2007-01-26  Roger Sayle  <roger@eyesopen.com>
3251
3252         * config/i386/i386.c (ix86_swap_binary_operands_p): New helper
3253         function to simplify/factorize operand order canonicalization.
3254         (ix86_fixup_binary_operands): Reorganize using the above function.
3255         (ix86_binary_operator_ok): Likewise.
3256
3257 2007-01-27  Jakub Jelinek  <jakub@redhat.com>
3258
3259         * genattrtab.c (struct attr_value_list, insn_code_values): Move to
3260         file scope from optimize_attrs.
3261         (simplify_test_exp): If insn_code_values is not NULL, use it to speed
3262         up search.
3263         (optimize_attrs): Clear insn_code_values after freeing it.
3264
3265 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3266
3267         * tree-ssa-address.c (create_mem_ref): Remove ", bsi" from
3268         a parts.base assignment.
3269
3270 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3271
3272         * tree-data-ref.c (dump_subscript): Use dump_conflict_function.
3273         (compute_subscript_distance, initialize_data_dependence_relation,
3274         finalize_ddr_dependent, analyze_ziv_subscript,
3275         analyze_siv_subscript_cst_affine,
3276         compute_overlap_steps_for_affine_univar,
3277         compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
3278         analyze_siv_subscript, analyze_miv_subscript,
3279         analyze_overlapping_iterations, subscript_dependence_tester_1,
3280         compute_self_dependence, free_dependence_relation): Work
3281         with affine_fn instead of chrecs.
3282         (dump_affine_function, dump_conflict_function, affine_function_equal_p,
3283         common_affine_function, affine_function_base,
3284         affine_function_constant_p, affine_fn_op, affine_fn_plus,
3285         affine_fn_minus, affine_fn_free, conflict_fn_not_known,
3286         conflict_fn_no_dependence, free_conflict_function, free_subscripts,
3287         conflict_fn, affine_fn_cst, affine_fn_univar): New functions.
3288         (all_chrecs_equal_p): Removed.
3289         * tree-data-ref.h (affine_fn, conflict_function): New types.
3290         (struct subscript): Change type of conflicting_iterations_in_a
3291         and conflicting_iterations_in_b.
3292
3293 2007-01-26  Steve Ellcey  <sje@cup.hp.com>
3294
3295         PR other/30182
3296         * config/pa/pa.h (TARGET_HPUX_11): New.
3297         * config/pa/pa-hpux11.h (TARGET_HPUX_11): New.
3298         * config/pa/pa.c (pa_init_builtins): Use TARGET_HPUX_11.
3299
3300 2007-01-26  Daniel Berlin  <dberlin@dberlin.org>
3301         Richard Guenther  <rguenther@suse.de>
3302
3303         * tree-ssa-structalias.c (solve_graph): Handle case
3304         we merged the variable to another.
3305
3306 2007-01-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3307
3308         * builtins.c (fold_builtin_1): Treat ccos and ccosh as 'even'
3309         functions.
3310
3311         * fold-const.c (negate_mathfn_p): Treat casin, casinh, catan,
3312         catanh, cproj, csin, csinh, ctan and ctanh as 'odd' functions.
3313
3314 2007-01-25  DJ Delorie  <dj@redhat.com>
3315
3316         * config/m32c/m32c.c (m32c_cannot_change_mode_class): We don't
3317         allow changes to modes which don't fit in those registers.
3318
3319         * reload1.c (choose_reload_regs): Check for invalid subregs before
3320         computing their locations, not after.
3321
3322 2007-01-25  Geoffrey Keating  <geoffk@apple.com>
3323
3324         PR 25127
3325         * config/rs6000/rs6000.c (first_altivec_reg_to_save): On Darwin,
3326         save Altivec registers in an eh_return function.
3327         (compute_vrsave_mask): Likewise.
3328         (rs6000_stack_info): Correct AIX/Darwin stack alignment computation
3329         for saving Altivec registers.
3330         (rs6000_emit_prologue): Don't allocate stack twice in
3331         eh_return function.  Correct expected value of altivec_save_offset
3332         when using save_world.  Describe save of R0 to stack when using
3333         save_world.  Describe stack pointer adjustment when using
3334         save_world.  Remove duplicated eh_return parameter register saving.
3335         Update sp_offset variable after save_world.
3336         * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA): Remove
3337         darwin-world.asm.
3338         (LIB2FUNCS_EXTRA): Add darwin-world.asm.
3339         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): -m64
3340         implies Altivec.
3341
3342 2007-01-25  Steve Ellcey  <sje@cup.hp.com>
3343
3344         * config.gcc (ia64*-*-hpux*): Make posix threads the default.
3345
3346 2007-01-25  Steve Ellcey  <sje@cup.hp.com>
3347
3348         PR other/30182
3349         * config/pa/pa.c (pa_init_builtins): Set asm names for finite routines.
3350         * config/ia64/ia64.c (ia64_init_builtins):  Ditto.
3351
3352 2007-01-25  Richard Guenther  <rguenther@suse.de>
3353
3354         * doc/invoke.texi (-Wcoverage-mismatch): Document.
3355         * common.opt (-Wcoverage-mismatch): New warning option.
3356         * coverage.c (get_coverage_counts): Ignore coverage mismatch
3357         if -Wcoverage-mismatch is given.
3358
3359 2007-01-25  Razya Ladelsky  <razya@il.ibm.com>
3360
3361         * ipa-cp.c (ipcp_insert_stage, ipcp_driver): Support for SSA.
3362         (ipcp_driver): Change to static definition.
3363         Add dumping of the ifunctions.
3364         (constant_val_insert): Remove unused parameter. Support for SSA.
3365         (ipcp_propagate_const): Support for SSA.
3366         (ipcp_profile_bb_print): Print only analyzed nodes.
3367         (ipcp_replace_map_create): Remove support for Fortran constant
3368         for now.
3369         * ipa-prop.c (ipa_method_modify_stmt,
3370         ipa_callsite_compute_param): Support for SSA.
3371         * ipa-prop.h (ipcp_driver): Remove declaration.
3372         (IS_VALID_TREE_MAP_INDEX): Add define.
3373
3374 2007-01-24  Geoffrey Keating  <geoffk@apple.com>
3375
3376         * unwind-dw2.c (execute_stack_op): Handle DW_OP_swap.
3377
3378 2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3379
3380         PR middle-end/30447
3381         * builtins.c (fold_builtin_cabs): Use MPFR to evaluate a
3382         constant argument to cabs and do it without checking for
3383         -funsafe-math-optimizations.
3384
3385 2007-01-24  Douglas Gregor  <dgregor@osl.iu.edu>
3386
3387         * c-common.h (RID_FIRST_CXX0X): New.
3388         (RID_LAST_CXX0X): New.
3389         * c-opts.c (c_common_handle_option): -Wc++0x-compat is triggered
3390         by -Wall.
3391         * c.opt (Wc++0x-compat): New.
3392         * doc/invoke.texi (-Wc++0x-compat): Document.
3393
3394 2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3395
3396         * builtins.c (fold_builtin_carg): New.
3397         (fold_builtin_1): Use it.
3398
3399 2007-01-24  Jan Hubicka  <jh@suse.cz>
3400
3401         * ipa-inline.c (cgraph_decide_inlining): Initialize initial_insns.
3402
3403         * ipa-inline.c (initial_insns, max_insns): Delete.
3404         (compute_max_insns): New function.
3405         (cgraph_decide_inlining_of_small_function): Use it; take minimal amount
3406         of insns as base for code growth.
3407         (cgraph_decide_inlining): Make initial_insns local; do not compute
3408         max_insns.
3409         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 60.
3410         * doc/invoke.texi (inline-unit-growth): Update docs.
3411
3412 2007-01-24  Jakub Jelinek  <jakub@redhat.com>
3413
3414         * config/i386/i386.h (x86_cmpxchg16b): Remove const.
3415         (TARGET_CMPXCHG16B): Define to x86_cmpxchg16b.
3416         * config/i386/i386.c (x86_cmpxchg16b): Remove const.
3417         (override_options): Add PTA_CX16 flag.  Set x86_cmpxchg16b
3418         for CPUs that have PTA_CX16 set.
3419
3420         PR middle-end/27416
3421         * gimplify.c (omp_check_private): New function.
3422         (gimplify_scan_omp_clauses): Use it for
3423         firstprivate/lastprivate/reduction.
3424
3425         PR middle-end/30494
3426         * gimplify.c (omp_add_variable): Don't call omp_notice_variable
3427         on TYPE_SIZE_UNIT for GOVD_LOCAL VLAs.
3428
3429         PR middle-end/30421
3430         * omp-low.c (lower_omp_for_lastprivate): Add dlist argument.
3431         If lower_lastprivate_clauses emits some statements, append them
3432         to dlist rather than body_p and to body_p append an initializer.
3433         (lower_omp_for): Adjust caller.
3434
3435 2007-01-24  Steve Ellcey  <sje@cup.hp.com>
3436
3437         * target.h (globalize_decl_name): New.
3438         * target-def.h (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
3439         * output.h (default_globalize_decl_name): New.
3440         * varasm.c (asm_output_bss): Use globalize_decl_name instead of
3441         globalize_label.
3442         (globalize_decl): Ditto.
3443         (default_globalize_decl_name): New.
3444         * config/ia64/ia64.c (ia64_globalize_decl_name): New.
3445         (ia64_handle_version_id_attribute): New.
3446         (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
3447         (ia64_asm_output_external): Use globalize_decl_name instead
3448         of globalize_label.
3449         * doc/extend.texi (version_id): New pragma.
3450         * doc/tm.texi (ARGET_ASM_GLOBALIZE_DECL_NAME): New target hook.
3451
3452 2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>
3453
3454         * unwind-dw2-fde.c (get_cie_encoding): Replaced _Unwind_Word with
3455         _uleb128_t and _Unwind_SWord with _sleb128_t.
3456         * unwind-dw2.c (extract_cie_info, execute_stack_op, execute_cfa_program,
3457         uw_frame_state_for, uw_update_context_1): Likewise.
3458         * unwind-c.c (parse_lsda_header, PERSONALITY_FUNCTION): Likewise.
3459         * unwind-pe.h (read_uleb128, read_sleb128,
3460         read_encoded_value_with_base): Likewise.
3461         * unwind-generic.h: Define _sleb128_t and _uleb128_t types.
3462
3463 2007-01-24  Richard Guenther  <rguenther@suse.de>
3464
3465         * builtins.c (expand_builtin_cexpi): Get the fndecl
3466         for cexp in the correct way.
3467
3468 2007-01-24  Jan Hubicka  <jh@suse.cz>
3469
3470         * tree-ssa-dce.c (eliminate_unnecesary_stmts): Remove dead LHS of calls.
3471
3472 2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>
3473
3474         * c-cppbuiltin.c (builtin_define_type_sizeof): New function.
3475         (c_cpp_builtins): New builtin macros: __SIZEOF_INT__, __SIZEOF_LONG__,
3476         __SIZEOF_LONG_LONG__, __SIZEOF_SHORT__, __SIZEOF_POINTER__,
3477         __SIZEOF_FLOAT__, __SIZEOF_DOUBLE__, __SIZEOF_LONG_DOUBLE__,
3478         __SIZEOF_SIZE_T__, __SIZEOF_WCHAR_T__, __SIZEOF_WINT_T__ and
3479         __SIZEOF_PTRDIFF_T__.
3480         * doc/cpp.texi: Documentation for the new builtin macros added.
3481
3482 2007-01-24  Uros Bizjak  <ubizjak@gmail.com>
3483
3484         * config/i386/i386.md (tanxf2, tan<mode>2, atan<mode>2, log<mode>2,
3485         log10<mode>2, log2<mode>2, expxf2, exp10xf2, exp2xf2): Use op2
3486         instead of operands[2] to avoid access past the end of array.
3487
3488 2007-01-24  Richard Sandiford  <richard@codesourcery.com>
3489
3490         * reload1.c (emit_reload_insns): Pass the reload register
3491         for a non-spill output reload through forget_old_reloads_1.
3492
3493 2007-01-23  Joseph Myers  <joseph@codesourcery.com>
3494
3495         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
3496         _SOFT_DOUBLE if doubles use software floating-point.
3497         * config/rs6000/libgcc-ppc-glibc.ver: Export additional long
3498         double functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
3499         * config/rs6000/darwin-ldouble.c: Also compile functions for
3500         hard-float without FPRs.  Use fmsub function for all __NO_FPRS__
3501         cases.  Compile extra functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
3502         * config/rs6000/linuxspe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Remove
3503         commented-out long double override.
3504         (CPP_LONGDOUBLE_DEFAULT_SPEC): Likewise.
3505         * config/rs6000/eabispe.h: Likewise.
3506         * config/rs6000/rs6000.c (rs6000_override_options): Don't override
3507         long double for non-SPE.
3508         (rs6000_handle_option): Likewise.
3509         (invalid_e500_subreg): Disallow more subregs involding DImode,
3510         DFmode, TImode or TFmode.
3511         (rs6000_legitimate_offset_address_p): Check TFmode offsets for
3512         E500 double.
3513         (legitimate_lo_sum_address_p): Also check for TFmode for E500
3514         double.
3515         (rs6000_legitimize_address): Also handle TFmode for E500 double.
3516         (rs6000_legitimize_reload_address): Also handle TFmode for E500
3517         double.
3518         (rs6000_legitimate_address): Also check for TFmode for E500
3519         double.
3520         (rs6000_emit_move): Use DFmode subregs of TFmode for E500 double.
3521         (spe_build_register_parallel): Handle TFmode and TCmode.
3522         (rs6000_spe_function_arg): Handle TFmode and TCmode for E500
3523         double.
3524         (function_arg): Handle TFmode and TCmode for E500 double.
3525         (rs6000_init_libfuncs): Initialize extra libfuncs for soft double
3526         in general.
3527         (print_operand): Handle TFmode and TImode for %y.
3528         (rs6000_generate_compare): Handle TFmode comparisons for E500
3529         double.
3530         (spe_func_has_64bit_regs_p): Check for TFmode for E500 double.
3531         (rs6000_function_value): Handle TFmode and TCmode for E500 double.
3532         (rs6000_libcall_value): Handle TFmode and TCmode for E500 double.
3533         * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Check for
3534         TFmode for E500 double.
3535         * config/rs6000/rs6000.md (FP): Allow TF for E500 double.
3536         (floatsidf2): Enable for E500 double.
3537         (movtf_softfloat): Use rs6000_nonimmediate_operand.
3538         (extenddftf2): Change to extenddftf2_fprs.
3539         (extenddftf2): Call gen_spe_extenddftf2 or gen_extenddftf2_fprs
3540         depending on TARGET_E500_DOUBLE.
3541         (extendsftf2): Enable for E500 double.
3542         (trunctfdf2): Enable for E500 double.
3543         (trunctfsf2): Change to trunctfsf2_fprs.
3544         (trunctfsf2): Call gen_spe_trunctfsf2 or gen_trunctfsf2_fprs
3545         depending on TARGET_E500_DOUBLE.
3546         (floatsitf2): Enable for E500 double.
3547         (fix_trunctfsi2): Change to fix_trunctfsi2_fprs.
3548         (fix_trunctfsi2): Call gen_spe_fix_trunctfsi2 or
3549         gen_fix_trunctfsi2_fprs depending on TARGET_E500_DOUBLE.
3550         (negtf2): Change to negtf2_internal.
3551         (negtf2): New expander.
3552         (abstf2): Enable for E500 double.  Call gen_spe_abstf2_tst,
3553         gen_spe_abstf2_cmp or gen_abstf2_internal depending on
3554         TARGET_E500_DOUBLE and flag_unsafe_math_optimizations.
3555         (movdi_internal32): Use rs6000_nonimmediate_operand.
3556         (unnamed splitter): Likewise.
3557         * config/rs6000/spe.md (CMPTFEQ_GPR, TSTTFEQ_GPR, CMPTFGT_GPR,
3558         TSTTFGT_GPR, CMPTFLT_GPR, TSTTFLT_GPR): New unspecs.
3559         (SPE64TF, DITI): New mode macros.
3560         (frob_df_di): Change to frob_<SPE64:mode>_<DITI:mode>; allow more
3561         modes.
3562         (frob_tf_ti): New.
3563         (frob_<mode>_di_2): New.
3564         (frob_tf_di_8_2): New.
3565         (frob_di_df): Change to frob_di_<mode>; allow more modes.
3566         (frob_ti_tf): New.
3567         (frob_di_df_2): Change to frob_<DITI:mode>_<SPE64:mode>_2; allow
3568         more modes.
3569         (frob_ti_<mode>_8_2): New.
3570         (frob_ti_tf_2): New.
3571         (mov_si<mode>_e500_subreg0, mov_si<mode>_e500_subreg0_2,
3572         mov_si<mode>_e500_subreg4, mov_si<mode>_e500_subreg4_2): Allow
3573         TFmode.
3574         (mov_sitf_e500_subreg8, mov_sitf_e500_subreg8_2,
3575         mov_sitf_e500_subreg12, mov_sitf_e500_subreg12_2): New.
3576         (spe_trunctfdf2_internal1, spe_trunctfsf2, spe_extenddftf2,
3577         spe_fix_trunctfsi2, spe_fix_trunctfsi2_internal,
3578         spe_negtf2_internal, spe_abstf2_cmp, spe_abstf2_tst): New.
3579         (cmptfeq_gpr, tsttfeq_gpr, cmptfgt_gpr, tsttfgt_gpr, cmptflt_gpr,
3580         tsttflt_gp): New.
3581
3582 2007-01-23  Ian Lance Taylor  <iant@google.com>
3583
3584         * Makefile.in (OBJS-common): Reformat, alphabetize, but put
3585         insn-*.o first.
3586         (OBJS-archive): Reformat, alphabetize.
3587         (OBJS): Change out_object_file to OBJS-md.
3588
3589 2007-01-23  Uros Bizjak  <ubizjak@gmail.com>
3590
3591         * config/i386/i386.md: Use REG_P, MEM_P, CONST_INT_P, LABEL_P,
3592         JUMP_P and CALL_P predicates where applicable.
3593         * config/i386/i386.c: Ditto.
3594         * config/i386/i386.md: Ditto.
3595         * config/i386/mmx.md: Ditto.
3596         * config/i386/predicates.md: Ditto.
3597
3598 2007-01-22  Andreas Schwab  <schwab@suse.de>
3599
3600         * config/m68k/m68k.h: Fix comment.
3601
3602 2007-01-22  Jan Hubicka  <jh@suse.cz>
3603
3604         * passes.c (init_optimization_passes): Do not rerun
3605         pass_early_warn_uninitialized.
3606
3607 2007-01-22  Richard Guenther  <rguenther@suse.de>
3608
3609         PR tree-optimization/30038
3610         * tree-ssa-math-opts.c (maybe_record_sincos): New static helper
3611         function.
3612         (execute_cse_sincos_1): Likewise.
3613         (execute_cse_sincos): Likewise.
3614         (gate_cse_sincos): Likewise.
3615         (pass_cse_sincos): New pass CSEing sin() and cos() calls using
3616         the cexpi() canonicalization of sincos().
3617         * tree-pass.h (pass_cse_sincos): Declare.
3618         * passes.c (init_optimization_passes): New pass pas_cse_sincos.
3619
3620 2007-01-21  Eric Botcazou  <ebotcazou@libertysurf.fr>
3621
3622         PR rtl-optimization/29329
3623         * combine.c (replaced_rhs_insn): Rename to i2mod.
3624         (replaced_rhs_value): Rename to i2mod_new_rhs.
3625         (i2mod_old_rhs): New global variable.
3626         (combine_instructions): Adjust for above change.  Save a copy of
3627         the old RHS into i2mod_old_rhs when the contents of a REG_EQUAL
3628         note are substituted in the second instruction.
3629         (distribute_notes) <REG_DEAD>: Adjust for above change.  Do not
3630         ditch the note if it pertains to the second eliminated register
3631         and this register is mentioned in i2mod_old_rhs.
3632
3633         Revert:
3634         2006-09-12  Eric Botcazou  <ebotcazou@libertysurf.fr>
3635
3636         * combine.c (distribute_notes) <REG_DEAD>: Do not consider SETs past
3637         the insn to which the note was originally attached.
3638
3639 2007-01-21  Jan Hubicka  <jh@suse.cz>
3640
3641         * ipa-inline.c (inlining_mode): Comment, move up.
3642         (cgraph_decide_inlining_incrementally): Do not perform inlining
3643         itself; fix handling of flattening of self recursive functions.
3644         (cgraph_find_cycles): Remove.
3645         (cgraph_flatten_node): Remove.
3646         (cgraph_decide_inlining): Use incremental inliner to handle flattening.
3647         (try_inline): New function.
3648         (cgraph_early_inlining): Update call of
3649         cgraph_decide_inlining_incrementally.  Apply inlining here.
3650         (apply_inline): Update call of cgraph_decide_inlining_incrementally.
3651
3652 2007-01-21  Dirk Mueller  <dmueller@suse.de>
3653
3654         PR bootstrap/30511
3655         * tree-vrp.c (check_array_bounds): do not warn
3656         about ADDR_EXPR's of ARRAY_REF's which are immediately
3657         used in binary expressions.
3658
3659 2007-01-21  Ira Rosen  <irar@il.ibm.com>
3660
3661         * tree-vectorizer.h (struct _stmt_vec_info): Add new field
3662         read_write_dep and macros for its access.
3663         * tree-vectorizer.c (new_stmt_vec_info): Initialize the new field.
3664         * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Remove
3665         argument, call vect_check_interleaving for every independent pair of
3666         data-refs. Mark loads that access the same memory location as a store
3667         in the loop.
3668         (vect_check_dependences): Remove.
3669         (vect_analyze_data_ref_dependences): Remove  vect_check_dependences
3670         call, fix the call to vect_analyze_data_ref_dependence.
3671         (vect_analyze_data_ref_access): For statements that access the same
3672         data-ref, check that they are not stores; for loads, check that there
3673         is no store that access the same location.
3674
3675 2007-01-20  Roger Sayle  <roger@eyesopen.com>
3676             Joseph Myers  <joseph@codesourcery.com>
3677
3678         * doc/invoke.texi (-fdump-rtl-combine): Fix under/overfull hbox.
3679         (-fdump-rtl-stack): Likewise.
3680         (-fno-signed-zeros): Use @minus{} for a minus sign.  Correct typo.
3681         (-mcheck-zero-division, -mcpu): Fix under/overfull hbox.
3682         (-mpt-fixed): Use @minus{} for minus sign.
3683         (Using Precompiled Headers): Fix under/overfull hbox.
3684
3685 2007-01-20  Jan Hubicka  <jh@suse.cz>
3686
3687         * tree-flow.h (struct stmt_ann_d): Move references_memory to proper
3688         place within annotation.
3689
3690 2007-01-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3691
3692         * pa.c (output_move_double): Change array size of xoperands to 4.
3693
3694 2007-01-20  Jan Hubicka  <jh@suse.cz>
3695
3696         * tree-tailcall.c (adjust_return_value): Do not use RESULT_DECL
3697         as temporary.
3698
3699 2007-01-19  Ian Lance Taylor  <iant@google.com>
3700
3701         * expmed.c (expand_divmod) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]: Cast
3702         constant to unsigned HOST_WIDE_INT before negating.
3703
3704 2007-01-19  Ian Lance Taylor  <iant@google.com>
3705
3706         * tree-ssa-operands.h (struct vuse_vec_d): Change num_vuse field
3707         to unsigned.
3708         (VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Use unsigned comparison.
3709         (VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
3710         (SET_VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Likewise.
3711         (SET_VUSE_ELEMENT_VAR) [ENABLE_CHECKING]: Likewise.
3712         (SET_VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
3713         (realloc_vdef, realloc_vuse): Change second parameter to
3714         unsigned.
3715         (ssa_operand_iterator_d): Change vuse_index and mayuse_index
3716         fields to unsigned.
3717         * tree-ssa-operands.c (realloc_vop): Change num_elem parameter to
3718         unsigned. Change x and lim locals to unsigned.
3719         (realloc_vdef, realloc_vuse): Change num_elem parameter to
3720         unsigned.
3721         (finalize_ssa_vuse_ops): Change old_i local to unsigned.
3722         (copy_virtual_operands): Change i and n locals to unsigned.
3723
3724 2007-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3725
3726         PR middle-end/29335
3727         * builtins.c (fold_builtin_1): Handle builtin fdim.
3728
3729 2007-01-20  Jan Hubicka  <jh@suse.cz>
3730
3731         * tree-ssa.c (init_tree_ssa): Do not call init_alias_heapvars.
3732         * tree-ssa-structalias.c (compute_points_to_sets): Do call
3733         init_alias_heapvars.
3734         (init_alias_heapvars): Initialize only when not already initialized.
3735         (delete_alias_heapvars): Set heapvar_for_stmt to NULL.
3736
3737 2007-01-19  Roger Sayle  <roger@eyesopen.com>
3738
3739         * common.opt (fsigned-zeros): New command line option.
3740         * flags.h (HONOR_SIGNED_ZEROS): Control via flag_signed_zeros instead
3741         of flag_unsafe_math_optimizations.
3742         * opts.c (set_fast_math_flags): The -ffast-math command line option
3743         implies -fno-signed-zeros.
3744         (fast_math_flags_set_p): Likewise.
3745
3746         * doc/invoke.texi: Document new -fno-signed-zeros option, and update
3747         the documentation of -ffast-math appropriately.  Wrap long lines.
3748
3749 2007-01-19  Steve Ellcey  <sje@cup.hp.com>
3750
3751         * system.h (ASM_MAKE_LABEL_LINKONCE): Poison.
3752         * varasm.c (globalize_decl): Remove ASM_MAKE_LABEL_LINKONCE ifdef.
3753
3754 2007-01-19  Tomas Bily  <tbily@suse.cz>
3755
3756         * cgraphunit.c (cgraph_finalize_function): Updating of pid
3757         * tree-profile.c:
3758         (tree_init_ic_make_global_vars): New function
3759         (tree_init_edge_profiler): call of tree_init_ic_make_global_vars
3760         (tree_gen_ic_profiler): New function
3761         (tree_gen_ic_func_profiler): New function
3762         (tree_profiling): Added calling of tree_gen_ic_func_profiler
3763         (tree_profile_hooks): Added hook for indirec/virtual calls
3764         * value-prof.c (tree_find_values_to_profile): New case for
3765         indirect calls
3766         (tree_values_to_profile): Call for determining indirect/virtual
3767         counters
3768         (tree_indirect_call_to_profile): New function
3769         (tree_ic_transform): New function
3770         (tree_ic): New function
3771         (find_func_by_pid): New function
3772         (init_pid_map): New function
3773         (tree_value_profile_transformations): Added check for
3774         indirect/virtual call transformation
3775         * value-prof.h (enum hist_type): New counter type for
3776         indirect/virtual calls
3777         (profile_hooks): Added new hook for profiling indirect/virtual
3778         calls
3779         * profile.c (instrument_values): New case for indirect/virtual
3780         call added
3781         * gcov-io.h (GCOV_LAST_VALUE_COUNTER): Changed to 6
3782         (GCOV_COUNTER_V_INDIR): New counter type
3783         (GCOV_COUNTER_NAMES): New name of counter "indirect" added
3784         (GCOV_MERGE_FUNCTIONS): New merge function for indirect/virtual
3785         call added
3786         * cgraph.c: Definition of cgraph_max_pid
3787         (cgraph_create_node): Default init of pid attribute
3788         * cgraph.h: Declaration of cgraph_max_pid
3789         (struct cgraph_node): Added pid attribute
3790         * libgcov.c (__gcov_indirect_call_profiler): New function
3791         (__gcov_one_value_profiler_body): New function
3792         (__gcov_one_value_profiler): Body was moved to
3793         __gcov_one_value_profiler_body and calls it
3794
3795 2007-01-19  Basile Starynkevitch  <basile@starynkevitch.net>
3796
3797         * doc/gty.texi (Options): Document the mark_hook option to GTY.
3798         * gengtype.c (write_types_data, write_func_for_structure,
3799         write_types, ggc_wtd, pch_wtd): Add skip_hooks to
3800         write_types_data, ggc_wtd, pch_wtd for processing mark_hook.
3801         (walk_type, write_func_for_structure): Generate the mark_hook if
3802         needed.
3803
3804 2007-01-19  Jan Hubicka  <jh@suse.cz>
3805
3806         * ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of
3807         'early' argument take inlining mode argument specifying whether to
3808         inline for size/speeed or all functions; add support for flattening;
3809         improve dumpting.
3810         (cgraph_early_inlining): Update call of decide_inlining_incrementally.
3811
3812 2007-01-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3813
3814         PR c++/17947
3815         * toplev.c (warn_deprecated_use): Use %qD instead of %qs to print
3816         the name of the declared identifier.
3817
3818 2007-01-19  Dirk Mueller  <dmueller@suse.de>
3819
3820         * config/i386.h (CONDITIONAL_REGISTER_USAGE): Store
3821         result of PIC_OFFSET_TABLE_REGNUM in temporary variable to avoid
3822         duplicate evaluation.
3823
3824 2007-01-19  Uros Bizjak  <ubizjak@gmail.com>
3825
3826         * config/i386/i386.md (acos<mode>2): Rename from acossf2 and acosdf2.
3827         Macroize expander using X87MODEF12 mode macro.  Extend operand 1
3828         to XFMode, use acosxf2 and truncate result to requested mode.
3829         Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
3830         (asin<mode>2): Similarly, with asin expanders.
3831         (*fscalexf4_i387): Rename from *fscalexf4.
3832         (expNcorexf3): New expander.
3833         (expxf2, exp10xf2, exp2xf2): Use expNcorexf3 expander.
3834         (exp<mode>2): Rename from expsf2 and expdf2. Macroize expander using
3835         X87MODEF12 mode macro.  Extend operand 1 to XFMode, use expxf2 and
3836         truncate result to requested mode. Use SSE_FLOAT_MODE_P to disable
3837         patterns for SSE math.
3838         (exp10<mode>2): Similarly, with exp10 expanders.
3839         (exp2<mode>2): Similarly, with exp2 expanders.
3840         (expm1<mode>2): Similarly, with expm1 expanders.
3841         (ldexp<mode>3): Similarly, with ldexp expanders.
3842         (log<mode>2, log10<mode>2, log2<mode>2, log1p<mode>2, logb<mode>2):
3843         Use gen_truncxf<mode>2_i387_noop to truncate result.
3844
3845 2007-01-19  Richard Sandiford  <richard@codesourcery.com>
3846
3847         * config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Define to 32
3848         for ColdFire targets.
3849
3850 2007-01-19  Nathan Sidwell  <nathan@codesourcery.com>
3851             Richard Sandiford  <richard@codesourcery.com>
3852
3853         * config/m68k/m68k.h (M68K_STATIC_CHAIN_REG_NAME): New macro.
3854         (INITIALIZE_TRAMPOLINE): Use STATIC_CHAIN_REGNUM.
3855         (__transfer_from_trampoline): Use M68K_STATIC_CHAIN_REG_NAME.
3856         * config/m68k/m68kelf.h (STATIC_CHAIN_REGNUM): Override.
3857         (M68K_STATIC_CHAIN_REG_NAME): Likewise.
3858         * config/m68k/netbsd-elf.h (M68K_STATIC_CHAIN_REG_NAME): Likewise.
3859
3860 2007-01-19  Richard Sandiford  <richard@codesourcery.com>
3861
3862         * config/m68k/m68k.md (adddi_dilshr32): Rename to...
3863         (*adddi_dilshr32): ...this.  Fix formatting.  Remove commented-out
3864         non-canonical pattern.  Restrict to !TARGET_COLDFIRE.
3865         (*adddi_dilshr32_cf): New pattern.
3866         (adddi3, subdi3): Remove first alternatives.
3867
3868 2007-01-19  Richard Sandiford  <richard@codesourcery.com>
3869
3870         * config/m68k/m68k.c (notice_update_cc): If an SFmode move is
3871         implemented using move.l, do not use its cc result for floating-point
3872         comparisons.
3873
3874 2007-01-19  Richard Sandiford  <richard@codesourcery.com>
3875
3876         * config/m68k/m68k.h (EXTRA_CONSTRAINT): Stop the 'T' constraint
3877         from accepting 's' constraints if flag_pic.
3878
3879 2007-01-19  Richard Sandiford  <richard@codesourcery.com>
3880
3881         * config/m68k/m68k.md (bordered, bunordered, buneq, bunge, bungt)
3882         (bunle, bunlt, bltgt, bordered_rev, bunordered_rev, buneq_rev)
3883         (bunge_rev, bungt_rev, bunle_rev, bunlt_rev, bltgt_rev): Change
3884         condition from TARGET_68881 to TARGET_HARD_FLOAT.
3885
3886 2007-01-19  Sandra Loosemore  <sandra@codesourcery.com>
3887
3888         * longlong.h (count_leading_zeros, COUNT_LEADING_ZEROS_0): Add
3889         ColdFire alternatives.
3890         * config/m68k/m68k.h (CLZ_DEFINED_VALUE_AT_ZERO): New macro.
3891         * config/m68k/m68k.md (clzsi2):  Define for ColdFire
3892         architectures that support ff1 instruction.
3893
3894 2007-01-19  Richard Sandiford  <richard@codesourcery.com>
3895             Julian Brown  <julian@codesourcery.com>
3896
3897         * config/m68k/m68k.h (CONST_OK_FOR_LETTER_P): Add an 'R' case.
3898         * config/m68k/m68k.md (*movsi_cfv4): Fold into...
3899         (*movsi_cf): ...here.  Remove unnecessary 'R' from 'Rg'.
3900         Add commentary.
3901
3902 2007-01-19  Richard Sandiford  <richard@codesourcery.com>
3903
3904         * config/m68k/m68k-protos.h (valid_mov3q_const): Take a HOST_WIDE_INT
3905         and return a bool.
3906         (output_move_const_into_data_reg, output_move_simode_const): Delete.
3907         * config/m68k/m68k.c (const_method, const_int_cost): Take a
3908         HOST_WIDE_INT instead of an rtx.
3909         (m68k_rtx_costs): Update call accordingly.
3910         (output_move_const_into_data_reg): Likewise.  Fix formatting.
3911         (valid_mov3q_const): Take a HOST_WIDE_INT instead of an rtx.
3912         Return a bool.
3913         (output_move_simode_const): Update calls after above changes.
3914         Rework to use automatic variables and predicates like MEM_P.
3915         * config/m68k/m68k.md (pushexthisi_const): Update call to
3916         valid_mov3q_const.
3917
3918 2007-01-19  Dirk Mueller  <dmueller@suse.de>
3919
3920         * tree-ssa-alias.c (perform_var_substitution): Fix typo
3921         in dump_flags test.
3922
3923 2007-01-19  Richard Guenther  <rguenther@suse.de>
3924
3925         * builtins.c (expand_builtin_cexpi): Fall back to expanding
3926         via cexp in case sincos is not available.
3927
3928 2007-01-19  Richard Guenther  <rguenther@suse.de>
3929
3930         * doc/tm.texi (TARGET_HAS_SINCOS): Document new target macro.
3931         * defaults.h (TARGET_HAS_SINCOS): Default to off.
3932         * config/linux.h (TARGET_HAS_SINCOS): Set to on if we have glibc.
3933         * config/alpha/linux.h (TARGET_HAS_SINCOS): Likewise.
3934         * config/sparc/linux.h (TARGET_HAS_SINCOS): Likewise.
3935         * config/sparc/linux64.h (TARGET_HAS_SINCOS): Likewise.
3936         * config/rs6000/linux.h (TARGET_HAS_SINCOS): Likewise.
3937         * config/rs6000/linux64.h (TARGET_HAS_SINCOS): Likewise.
3938
3939 2007-01-19  Uros Bizjak  <ubizjak@gmail.com>
3940
3941         * config/i386/i386.md (*fpatanxf3_i387, fpatan_extend<mode>xf3_i387):
3942         New insn patterns.
3943         (atan2sf3_1, atan2df3_1, atan2xf3_1): Remove insn patterns.
3944         (atan2xf3): Directly generate RTL pattern.
3945         (atan2<mode>3): Rename from atan2sf3 and atan2df3 and macroize insn
3946         patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
3947         and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
3948         disable patterns for SSE math.
3949         (atan<mode>2): Rename from atansf2 and atandf2 and macroize insn
3950         patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
3951         and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
3952         disable patterns for SSE math.
3953
3954 2007-01-19  Alexandre Oliva  <aoliva@redhat.com>
3955
3956         * libgcc-std.ver: Fix typo in %inherit for GCC_4.3.0.
3957
3958 2007-01-18  Roger Sayle  <roger@eyesopen.com>
3959
3960         * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Optimize away a
3961         VIEW_CONVERT_EXPR to the same type as it's operand.
3962
3963 2007-01-18  David Edelsohn  <edelsohn@gnu.org>
3964
3965         * config/rs6000/darwin-ldouble.c: Only build _SOFT_FLOAT if
3966         configured for long double 128.
3967
3968 2007-01-18  Mike Stump  <mrs@apple.com>
3969
3970         * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Fix build
3971         error.
3972
3973 2007-01-18  Michael Meissner  <michael.meissner@amd.com>
3974
3975         * i386.c (ix86_compute_frame_layout): Make fprintf's in #if 0 code
3976         type correct.
3977
3978 2007-01-18  Jan Hubicka  <jh@suse.cz>
3979
3980         * tree-ssa-operands.c (vop_free_bucket_size): Never return value
3981         greater than NUM_VOP_FREE_BUCKETS.
3982
3983 2007-01-18  Daniel Berlin  <dberlin@dberlin.org>
3984
3985         * tree-ssa-structalias.c: Update comments.
3986         (ptabitmap_obstack): Remo