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* rtl.h (remove_reg_equal_equiv_notes): New prototype.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
2
3         * rtl.h (remove_reg_equal_equiv_notes): New prototype.
4         * rtlanal.c (remove_reg_equal_equiv_notes): New function.
5         * combine.c (adjust_for_new_dest): Use it.
6         * postreload.c (reload_combine): Likewise.
7
8 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
9
10         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
11         notes on an insn with multiple sets, even if single_set returns
12         non-NULL for that insn.
13
14 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
15
16         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
17         scalbn and scalbln.
18
19 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
20
21         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
22         if user didn't pass it.
23         * config/i386/darwin.h (CC1_SPEC): Likewise.
24         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
25         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
26         -mmacosx-version-min.
27
28 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
29             Uros Bizjak  <ubizjak@gmail.com>
30
31         * optabs.h (enum optab_index): Add new OTI_scalb.
32         (scalb_optab): Define corresponding macro.
33         * optabs.c (init_optabs): Initialize scalb_optab.
34         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
35         patterns.
36         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
37         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
38         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
39         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
40         flag_unsafe_math_optimizations is set.
41
42         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
43         to implement scalbf, scalb and scalbl built-ins as inline x87
44         intrinsics.
45
46 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
47             DJ Delorie <dj@redhat.com>
48
49         PR other/30824
50         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
51         (diagnostic_report_diagnostic): ... here, and turn them into real
52         errors. If warnings are inhibited, no need to do anything.
53
54 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
55
56         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
57         better code generation.
58
59 2007-02-20  Ben Elliston  <bje@au.ibm.com>
60
61         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
62
63 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
64
65         * config/alpha/alpha.c, config/alpha/alpha.md,
66         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
67         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
68         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
69         config/arm/lib1funcs.asm: Follow spelling conventions.
70
71         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
72         config/fr30/fr30.md, config/i386/i386.h,
73         config/iq2000/iq2000.h, config/iq2000/predicates.md,
74         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
75         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
76         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
77         config/rs6000/altivec.md, config/rs6000/rs6000.c,
78         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
79         config/sparc/sparc.c, config/sparc/sparc.h,
80         config/sparc/sparc.md, config/spu/constraints.md,
81         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
82         conventions.
83
84 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
85
86         PR target/29943
87         * varasm.c (use_blocks_for_decl_p): Return false for decls with
88         alias attribute.
89
90 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
91
92         * doc/invoke.texi (-ftree-lrs): Remove.
93
94 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
95
96         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
97         NULL.
98
99 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
100
101         * config/ia64/ia64.c (ia64_expand_builtin): Use the
102         new CALL_EXPR_FN macro for retrieving the function 
103         declaration of the input expression.
104         
105 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
106
107         * c.opt (Waddress): New.
108         * common.opt (Walways-true): Delete.
109         (Wstring-literal-comparison): Delete.
110         * doc/invoke.texi (Warning Options): Delete -Walways-true and
111         -Wstring-literal-comparison. Add -Waddress.
112         (Waddress): New.
113         (Walways-true): Delete.
114         (Wstring-literal-comparison): Delete.
115         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
116         consistently instead of -Walways-true in example.
117         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
118         * c-typeck.c (parser_build_binary_op): Replace
119         -Wstring-literal-comparison and -Walways-true with -Waddress.
120         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
121         with -Waddress.
122         
123 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
124
125         * tree-cfg.c (dump_function_to_file): Be prepared for functions
126         without DECL_STRUCT_FUNCTION initialized.
127
128 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
129
130         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
131         due to calls to functions taking pointers as parameters.
132
133 2007-02-19  Richard Henderson  <rth@redhat.com>
134
135         PR debug/29558
136         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
137         in memory.
138
139 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
140
141         * config/s390/s390.c (s390_call_saved_register_used,
142         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
143         accessed to the new scheme.
144
145 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
146
147         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
148         (cris_print_index, cris_print_operand, cris_print_operand_address)
149         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
150         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
151         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
152         GET_CODE () == xxx.
153         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
154         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
155         GO_IF_LEGITIMATE_ADDRESS): Ditto.
156         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
157         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
158         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
159         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
160         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
161         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
162         (uminsi3, call, call_value): Ditto.
163         (define_split: indir_to_reg_split, unnamed): Ditto.
164
165 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
166
167         PR tree-optimization/30975
168         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
169         wrong assert.
170
171 2007-02-18  Eric Christopher  <echristo@gmail.com>
172
173         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
174         Remove use of arglist.
175         (mips_expand_builtin): Remove use of arglist, pass in expr.
176         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
177         (mips_expand_builtin_movtf): Ditto.
178         (mips_expand_builtin_compare): Ditto.
179
180 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
181
182         * tree-sra.c (sra_build_assignment): Replace assertion
183         checking with a comment explaining why it can't be done.
184
185 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
186
187         PR middle-end/30833
188         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
189         during CALL_EXPR representation conversion.
190         * tree-ssa-propagate.c (set_rhs): Likewise.
191
192 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
193
194         * tree-sra.c (sra_build_assignment): Disable assertion checking
195         for now.
196
197 2007-02-18  Roger Sayle  <roger@eyesopen.com>
198
199         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
200         instead of calling build2 with a GIMPLE_MODIFY_STMT.
201         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
202         Likewise.
203         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
204         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
205         gimplify_init_ctor_eval_range, gimple_push_cleanup,
206         gimplify_omp_for, gimplify_omp_atomic_pipeline,
207         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
208         force_gimple_operand): Likewise.
209         * ipa-cp.c (constant_val_insert): Likewise.
210         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
211         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
212         perfect_nestify): Likewise.
213         * langhooks.c (lhd_omp_assignment): Likewise.
214         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
215         lower_copyprivate_clauses, lower_send_clauses,
216         lower_send_shared_vars, expand_parallel_call,
217         expand_omp_for_generic, expand_omp_for_static_nochunk,
218         expand_omp_for_static_chunk, expand_omp_sections,
219         lower_omp_single_copy, lower_omp_for_lastprivate,
220         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
221         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
222         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
223         Likewise.
224
225 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
226
227         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
228         config/sh/sh.md: Follow spelling conventions.
229
230         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
231         config/frv/predicates.md: Follow spelling conventions.
232
233         * config/m68k/linux-unwind.h: Fix a comment typo.
234         * target.h: Follow spelling conventions.
235
236 2007-02-18  Roger Sayle  <roger@eyesopen.com>
237
238         PR rtl-optimization/28173
239         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
240         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
241         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
242         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
243         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
244
245 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
246
247         * builtins.c (fold_builtin_load_exponent): New.
248         (fold_builtin_2): Use it.
249
250 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
251
252         PR rtl-optimization/30773
253         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
254         if we fail to attach a REG_EQUIV note.
255
256 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
257             Roger Sayle  <roger@eyesopen.com>
258
259         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
260
261 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
262
263         * calls.c (initialize_argument_information): Pass original EXP
264         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
265         code to split complex arguments here, as part of initializing the
266         ARGS array.
267         (expand_call): Remove code that builds a list of arguments and
268         inserts implicit arguments into it.  Instead, just count how many
269         implicit arguments there will be so we can determine the size of
270         the ARGS array, and let initialize_argument_information do the work.
271         (split_complex_values): Delete unused function.
272
273 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
274
275         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
276
277 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
278
279         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
280         for arg pointer based indexed addressing.
281
282 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
283
284         * config/ia64/ia64.h, config/ia64/ia64.md,
285         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
286         spelling conventions.
287
288 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
289
290         * config/m68k/m68k.c (split_di): New.
291         * config/m68k/m68k-protos.h: Declare split_di.
292         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
293           Improve predicate handling and split constant shifts.
294
295 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
296
297         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
298         parameter for register bitfield operations, general predicates
299         cleanup
300
301 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
302
303         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
304         * config/m68k/linux-unwind.h: New file.
305
306 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
307
308         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
309         config/i386/athlon.md, config/ia64/ia64.md,
310         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
311         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
312         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
313         tree-ssa-loop-niter.c, tree-vect-analyze.c,
314         tree-vect-transform.c: Fix comment typos.
315
316 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
317
318         * sched-deps.c (find_insn_list): Remove.
319         * sched-int.h: Remove the prototype for find_insn_list.
320
321 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
322
323         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
324         to linker.
325         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
326         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
327         darwin_rs6000_override_options.
328         (C_COMMON_OVERRIDE_OPTIONS): Expect
329         darwin_macosx_version_min to be non-NULL always.
330         (TARGET_C99_FUNCTIONS): Likewise.
331         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
332         (DARWIN_MINVERSION_SPEC): New.
333         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
334         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
335         to cc1*.
336         (DARWIN_MINVERSION_SPEC): New.
337         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
338         value.
339         * config/darwin-c.c (darwin_cpp_builtins): Expect
340         darwin_macosx_version_min to be non-NULL always.
341
342         * config/rs6000/rs6000.c: Clean up trailing whitespace.
343
344 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
345
346         * config/i386/i386.h (x86_use_xchgb): New.
347         (TARGET_USE_XCHGB): New macro.
348         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
349         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
350         Split after reload into bswaphi for shifts of 8.
351         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
352         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
353         or when optimizing for size.
354
355 2007-02-16  Richard Guenther  <rguenther@suse.de>
356             Christian Bruel  <christian.bruel@st.com>
357
358         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
359         DECLs but prefer SSA_NAMEs over DECLs.
360
361 2007-02-16  Richard Guenther  <rguenther@suse.de>
362
363         * tree-flow-inline.h (single_imm_use_p): Remove.
364         (zero_imm_uses_p): Likewise.
365         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
366         instead of single_imm_use_p.
367         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
368         zero_imm_uses_p.
369
370 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
371
372         PR other/27843
373         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
374         nested double- and backquotes.
375
376 2007-02-15  Roger Sayle  <roger@eyesopen.com>
377
378         PR middle-end/30391
379         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
380         should be unreachable.
381         (build2_stat): Allow construction of MODIFY_EXPR at any time.
382         For the time being redirect GIMPLE_MODIFY_STMT to the new
383         (renamed) build_gimple_modify_stmt_stat.
384         (build2_gimple_stat): Rename to...
385         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
386         Always build a GIMPLE_MODIFY_STMT node.
387         * tree.h (build2_gimple, build2_gimple_stat): Delete.
388         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
389         declarations.
390
391         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
392         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
393         * tree-complex.c (set_component_ssa_name, expand_complex_move,
394         expand_complex_div_wide): Likewise.
395         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
396         * tree-ssa-loop-im.c (schedule_sm): Likewise.
397         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
398         * tree-ssa-loop-manip.c (create_iv): Likewise.
399         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
400         abs_replacement): Likewise.
401         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
402         realify_fake_stores): Likewise.
403
404         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
405         node rather than a GIMPLE_MODIFY_STMT node.
406         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
407         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
408         Likewise.
409         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
410         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
411         GIMPLE_MODIFY_STMT.
412
413 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
414
415         PR middle-end/30433
416         * fold-const.c (fold_comparison): Add back the
417         folding of constant complex comparisions.
418
419 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
420
421         PR middle-end/30729
422         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
423         effects unknown to this function, return early.
424
425 2007-02-15  Ian Lance Taylor  <iant@google.com>
426
427         * lower-subreg.c (move_eh_region_note): New static function.
428         (resolve_simple_move): Call it.
429         (decompose_multiword_subregs): Track blocks for which we resolve a
430         simple move which is also a control flow insn.  Pass them to
431         find_many_sub_basic_blocks.
432         (pass_lower_subreg): Add TODO_verify_flow.
433         (pass_lower_subreg2): Likewise.
434
435 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
436             Brooks Moses  <brooks.moses@codesourcery.com>
437             Lee Millward  <lee.millward@codesourcery.com>
438
439         * tree.h (enum tree_code_class): Add tcc_vl_exp.
440         (VL_EXP_CLASS_P): New.
441         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
442         TREE_CODE_LENGTH.
443         (TREE_OPERAND_CHECK_CODE): Likewise.
444         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
445         (TREE_RTL_OPERAND_CHECK): Likewise.
446         (tree_operand_check_failed): Make second parameter the whole tree
447         instead of its code.  Fixed callers.
448         (VL_EXP_CHECK): New.
449         (TREE_OPERAND_LENGTH): New.
450         (VL_EXP_OPERAND_LENGTH): New.
451         (CALL_EXPR_FN): New.
452         (CALL_EXPR_STATIC_CHAIN): New.
453         (CALL_EXPR_ARGS): New.
454         (CALL_EXPR_ARG): New.
455         (call_expr_nargs): New.
456         (CALL_EXPR_ARGP): New.
457         (build_nt_call_list): Declare.
458         (build_vl_exp_stat): Declare.
459         (build_vl_exp): New.
460         (build_call_list): Declare.
461         (build_call_nary): Declare.
462         (build_call_valist): Declare.
463         (build_call_array): Declare.
464         (call_expr_arg): Declare.
465         (call_expr_argp): Declare.
466         (call_expr_arglist): Declare.
467         (fold_build_call_list): Declare.
468         (fold_build_call_list_initializer): Declare.
469         (fold_call_expr): Declare to replace fold_builtin.
470         (fold_builtin_fputs): Update to agree with modified definition.
471         (fold_builtin_strcpy): Likewise.
472         (fold_builtin_strncpy): Likewise.
473         (fold_builtin_memory_chk): Likewise.
474         (fold_builtin_stxcpy_chk): Likewise.
475         (fold_builtin_strncpy_chk): Likewise.
476         (fold_builtin_next_arg): Likewise.
477         (fold_build_call_expr): Declare.
478         (fold_builtin_call_list): Declare.
479         (fold_builtin_call_valist): Declare.
480         (build_call_expr): Declare.
481         (validate_arglist): Update to agree with modified definition.
482         (tree_operand_length): New.
483         (call_expr_arg_iterator): New.
484         (init_call_expr_arg_iterator): New.
485         (next_call_expr_arg): New.
486         (first_call_expr_arg): New.
487         (more_call_expr_args_p): New.
488         (FOR_EACH_CALL_EXPR_ARG): New.
489
490         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
491         and tcc_gimple_stmt.
492         (tree_code_size): Update documentation.  Use sizeof (tree) rather
493         than sizeof (char *).
494         (tree_size): Likewise.  Add case for tcc_vl_exp.
495         (tree_node_structure): Add case for tcc_vl_exp.
496         (contains_placeholder_p): Likewise.
497         (substitute_in_expr): Likewise.
498         (substitute_placeholder_in_expr): Likewise.
499         (stabilize_reference_1): Likewise.
500         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
501         to diagnose breakage of this interface for constructing CALL_EXPRs.
502         (build_nt): Add similar assertion here.
503         (build_nt_call_list): New.
504         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
505         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
506         TREE_CODE_LENGTH.
507         (get_callee_fndecl): Use new CALL_EXPR accessors.
508         (tree_operand_check_failed): Change parameters to pass entire node
509         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
510         (process_call_operands): New.
511         (build_vl_exp_stat): New.
512         (build_call_list): New.
513         (build_call_nary): New.
514         (build_call_valist): New.
515         (build_call_array): New.
516         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
517         (call_expr_arglist): New.
518
519         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
520         tcc_vl_exp instead of a fixed-size tcc_expression.
521
522         * doc/c-tree.texi (CALL_EXPR): Document new representation and
523         accessors for CALL_EXPRs.
524         (AGGR_INIT_EXPR): Likewise.
525
526 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
527             Brooks Moses  <brooks.moses@codesourcery.com>
528             Lee Millward  <lee.millward@codesourcery.com>
529
530         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
531         (expand_builtin_nonlocal_goto): Change parameter to be entire
532         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
533         (expand_builtin_prefetch): Likewise.
534         (expand_builtin_classify_type): Likewise.
535         (mathfn_built_in): Return NULL_TREE instead of 0.
536         (expand_errno_check): Use new CALL_EXPR accessors.
537         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
538         Return NULL_RTX instead of 0.
539         (expand_builtin_mathfn_2): Likewise.
540         (expand_builtin_mathfn_3): Likewise.
541         (expand_builtin_interclass_mathfn): Likewise.
542         (expand_builtin_sincos): Likewise.
543         (expand_builtin_cexpi): Likewise.
544         (expand_builtin_int_roundingfn): Likewise.
545         (expand_builtin_int_roundingfn_2): Likewise.
546         (expand_builtin_pow): Likewise.
547         (expand_builtin_powi): Likewise.
548         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
549         of arglist, fixing callers appropriately.  Use new CALL_EXPR
550         accessors and constructors.  Return NULL_RTX instead of 0.
551         (expand_builtin_strstr): Likewise.
552         (expand_builtin_strchr): Likewise.
553         (expand_builtin_strrchr): Likewise.
554         (expand_builtin_strpbrk): Likewise.
555         (expand_builtin_memcpy): Likewise.
556         (expand_builtin_mempcpy): Likewise.
557         (expand_builtin_mempcpy_args): New.
558         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
559         (expand_builtin_memmove_args): New.
560         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
561         (expand_movstr): Likewise.
562         (expand_builtin_strcpy): Likewise.
563         (expand_builtin_strcpy_args): New.
564         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
565         (expand_builtin_strncpy): Likewise.
566         (expand_builtin_memset): Likewise.
567         (expand_builtin_memset_args): New.
568         (expand_builtin_bzero): Similarly to expand_builtin_memset.
569         (expand_builtin_memcmp): Likewise.
570         (expand_builtin_strcmp): Likewise.
571         (expand_builtin_strncmp): Likewise.
572         (expand_builtin_strcat): Likewise.
573         (expand_builtin_strncat): Likewise.
574         (expand_builtin_strspn): Likewise.
575         (expand_builtin_strcspn): Likewise.
576         (expand_builtin_args_info): Likewise.
577         (expand_builtin_va_start): Likewise.
578         (gimplify_va_arg_expr): Likewise.
579         (expand_builtin_va_end): Likewise.
580         (expand_builtin_va_copy): Likewise.
581         (expand_builtin_frame_address): Likewise.
582         (expand_builtin_alloca): Likewise.
583         (expand_builtin_bswap): Likewise.
584         (expand_builtin_unop): Likewise.
585         (expand_builtin_fputs): Likewise.
586         (expand_builtin_expect): Likewise.
587         (expand_builtin_fabs): Likewise.
588         (expand_builtin_copysign): Likewise.
589         (expand_builtin_printf): Likewise.
590         (expand_builtin_fprintf): Likewise.
591         (expand_builtin_sprintf): Likewise.
592         (expand_builtin_init_trampoline): Likewise.
593         (expand_builtin_signbit): Likewise.
594         (expand_builtin_fork_or_exec): Likewise.
595         (expand_builtin_sync_operation): Likewise.
596         (expand_builtin_compare_and_swap): Likewise.
597         (expand_builtin_lock_test_and_set): Likewise.
598         (expand_builtin_lock_release): Likewise.
599         (expand_builtin): Likewise.
600         (builtin_mathfn_code): Likewise.
601
602         (fold_builtin_constant_p): Pass call arguments individually instead
603         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
604         accessors and constructors.  Return NULL_TREE instead of 0.
605         (fold_builtin_expect): Likewise.
606         (fold_builtin_classify_type): Likewise.
607         (fold_builtin_strlen): Likewise.
608         (fold_builtin_nan): Likewise.
609         (integer_valued_real_p): Likewise.
610         (fold_trunc_transparent_mathfn): Likewise.
611         (fold_fixed_mathfn): Likewise.
612         (fold_builtin_cabs): Likewise.
613         (fold_builtin_sqrt): Likewise.
614         (fold_builtin_cbrt): Likewise.
615         (fold_builtin_cos): Likewise.
616         (fold_builtin_cosh): Likewise.
617         (fold_builtin_tan): Likewise.
618         (fold_builtin_sincos): Likewise.
619         (fold_builtin_cexp): Likewise.
620         (fold_builtin_trunc): Likewise.
621         (fold_builtin_floor): Likewise.
622         (fold_builtin_ceil): Likewise.
623         (fold_builtin_round): Likewise.
624         (fold_builtin_int_roundingfn): Likewise.
625         (fold_builtin_bitop): Likewise.
626         (fold_builtin_bswap): Likewise.
627         (fold_builtin_logarithm): Likewise.
628         (fold_builtin_hypot): Likewise.
629         (fold_builtin_pow): Likewise.
630         (fold_builtin_powi): Likewise.
631         (fold_builtin_exponent): Likewise.
632         (fold_builtin_memset): Likewise.
633         (fold_builtin_bzero): Likewise.
634         (fold_builtin_memory_op): Likewise.
635         (fold_builtin_bcopy): Deleted; call site changed to invoke
636         fold_builtin_memory_op directly.
637         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
638         (fold_builtin_strncpy): Likewise.
639         (fold_builtin_memcmp): Likewise.
640         (fold_builtin_strcmp): Likewise.
641         (fold_builtin_strncmp): Likewise.
642         (fold_builtin_signbit): Likewise.
643         (fold_builtin_copysign): Likewise.
644         (fold_builtin_isascii): Likewise.
645         (fold_builtin_toascii): Likewise.
646         (fold_builtin_isdigit): Likewise.
647         (fold_builtin_fabs): Likewise.
648         (fold_builtin_abs): Likewise.
649         (fold_builtin_fmin_fmax): Likewise.
650         (fold_builtin_carg): Likewise.
651         (fold_builtin_classify): Likewise.
652         (fold_builtin_unordered_cmp): Likewise.
653
654         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
655         New functions split out from fold_builtin_1.
656         (fold_builtin_n): New.
657         (fold_builtin_varargs): New.
658         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
659         instead.
660         (fold_call_expr): New.
661         (build_function_call_expr): Rewrite to use new helper function.
662         (fold_builtin_call_list): New.
663         (build_call_expr): New.
664         (fold_builtin_call_valist): New.
665         (rewrite_call_expr): New.
666         (validate_arg): New.
667         (validate_arglist): Change parameter to be entire CALL_EXPR instead
668         of an arglist.  Change return type to bool.  Use new CALL_EXPR
669         accessors.
670
671         (fold_builtin_strstr):  Pass call arguments individually instead
672         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
673         accessors and constructors.  Return NULL_TREE instead of 0.
674         (fold_builtin_strchr): Likewise.
675         (fold_builtin_strrchr): Likewise.
676         (fold_builtin_strpbrk): Likewise.
677         (fold_builtin_strcat): Likewise.
678         (fold_builtin_strncat): Likewise.
679         (fold_builtin_strspn): Likewise.
680         (fold_builtin_strcspn): Likewise.
681         (fold_builtin_fputs): Likewise.
682         (fold_builtin_next_arg): Likewise.
683         (fold_builtin_sprintf): Likewise.
684
685         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
686         NULL_RTX instead of 0.
687         (expand_builtin_memory_chk): Likewise.
688         (maybe_emit_chk_warning): Likewise.
689         (maybe_emit_sprintf_chk_warning): Likewise.
690
691         (fold_builtin_object_size): Pass call arguments individually instead
692         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
693         accessors and constructors.  Return NULL_TREE instead of 0.
694         (fold_builtin_memory_chk): Likewise.
695         (fold_builtin_stxcpy_chk): Likewise.
696         (fold_builtin_strncpy_chk): Likewise.
697         (fold_builtin_strcat_chk): Likewise.
698         (fold_builtin_strcat_chk): Likewise.
699         (fold_builtin_strncat_chk): Likewise.
700         (fold_builtin_sprintf_chk): Likewise.
701         (fold_builtin_snprintf_chk): Likewise.
702         (fold_builtin_printf): Likewise.
703         (fold_builtin_vprintf): Likewise.
704
705         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
706         constructors.
707         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
708         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
709         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
710         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
711         (fold_unary): Likewise.
712         (fold_binary): Likewise.
713         (fold_ternary): Remove CALL_EXPR case, since they are no longer
714         ternary expressions.
715         (fold): Add logic for tcc_vl_exp.
716         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
717         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
718         (fold_build3_stat): Add assertion to flag broken interface for
719         constructing CALL_EXPRs.
720         (fold_build_call_list): New.
721         (fold_build_call_list_initializer): New.
722         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
723         constructors.
724         (fold_strip_sign_ops): Likewise.
725
726 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
727             Brooks Moses  <brooks.moses@codesourcery.com>
728             Lee Millward  <lee.millward@codesourcery.com>
729
730         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
731         accessors and dump arguments explicitly.
732
733         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
734         TREE_CODE_LENGTH.
735         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
736         explicitly.
737         (print_call_name): Use new CALL_EXPR accessors.
738
739         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
740         CALL_EXPR arguments explicitly instead of as a list.  Use
741         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
742
743         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
744         (vrp_visit_stmt): Likewise.
745
746         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
747         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
748         TREE_CODE_LENGTH.
749         (force_move_till_expr): Likewise.
750
751         * targhooks.c (default_external_stack_protect_fail): Use
752         build_call_expr instead of build_function_call_expr.
753         (default_hidden_stack_protect_fail): Likewise.
754
755         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
756         build the call.
757
758         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
759         and walk arguments explicitly.
760
761         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
762         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
763         (expand_simple_operations): Likewise.
764         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
765
766         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
767         of TREE_CODE_LENGTH.
768         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
769
770         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
771         instead of TREE_CODE_LENGTH.
772
773         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
774         (tree_ic_transform): Likewise.
775         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
776         parameter instead of arglist.  Fix callers.
777         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
778         (tree_stringops_transform): Likewise.
779         (tree_indirect_call_to_profile): Likewise.
780         (tree_stringops_values_to_profile): Likewise.
781
782         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
783         (eliminate_tail_call): Likewise.
784
785         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
786
787         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
788         Use TREE_OPERAND_LENGTH and generalize to handle any number of
789         operands.
790         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
791
792         * omp-low.c (build_omp_barrier): Use build_call_expr.
793         (lower_rec_input_clauses): Likewise.
794         (lower_reduction_clauses): Likewise.
795         (expand_parallel_call): Likewise.
796         (maybe_catch_exception): Likewise.
797         (expand_omp_for_generic): Likewise.
798         (expand_omp_for_static_nochunk): Likewise.
799         (expand_omp_sections): Likewise.
800         (lower_omp_single_simple): Likewise.
801         (lower_omp_single_copy): Likewise.
802         (lower_omp_master): Likewise.
803         (lower_omp_ordered): Likewise.
804         (lower_omp_critical): Likewise.
805
806         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
807         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
808
809         * tree-gimple.c (is_gimple_call_addr): Fix doc.
810         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
811         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
812
813         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
814         and generalize to handle any number of operands.
815         (chrec_contains_undetermined): Likewise.
816         (tree_contains_chrecs): Likewise.
817         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
818
819         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
820
821         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
822         fold_call_expr instead of fold_builtin.
823         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
824         match declarations there.
825         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
826         updates.
827
828         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
829         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
830
831         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
832         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
833
834         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
835         accessors.
836
837         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
838         (execute_cse_sincos): Use new CALL_EXPR accessors.
839
840         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
841
842         * gimple-low.c (lower_function_body): Use build_call_expr.
843         (lower_builtin_setjmp): Likewise.
844
845         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
846         (set_storage_via_libcall): Likewise.
847         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
848         instead of TREE_CODE_LENGTH.
849         (expand_expr_real_1): Use new CALL_EXPR accessors.
850
851         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
852         generalize to handle any number of operands.
853         (TB_parent_eq): Likewise.
854
855         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
856         (strip_builtin_expect): Likewise.
857
858         * function.c (gimplify_parameters): Use build_call_expr.
859
860         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
861         instead of TREE_CODE_LENGTH.
862
863         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
864         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
865
866         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
867         iterators.
868
869         * gimplify.c (build_stack_save_restore): Use build_call_expr.
870         (gimplify_decl_expr): Likewise.
871         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
872         Use new CALL_EXPR iterators.
873         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
874         (gimplify_modify_expr_to_memset): Likewise.
875         (gimplify_variable_sized_compare): Likewise.
876         (gimplify_omp_atomic_fetch_op): Likewise.
877         (gimplify_omp_atomic_pipeline): Likewise.
878         (gimplify_omp_atomic_mutex): Likewise.
879         (gimplify_function_tree): Likewise.
880
881         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
882         (call_expr_flags): Likewise.
883         (expand_call): Likewise.
884
885         * except.c (expand_builtin_eh_return_data_regno): Pass entire
886         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
887         accessors.
888
889         * coverage.c (create_coverage): Use build_call_expr.
890
891         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
892         (temp_call_expr_obstack): New.
893         (pool_copy_list): Delete.
894         (temp_copy_call_expr): New.
895         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
896         CALL_EXPR accessors.  Get rid of special goo for copying argument
897         lists and use temp_copy_call_expr instead.
898         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
899         CALL_EXPR accessors.
900         (create_expression_by_pieces): Likewise.  Use build_call_array
901         to construct the result instead of fold_build3.
902         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
903         dealing with argument lists.
904         (init_pre): Remove references to expression_node_pool and
905         list_node_pool.  Init temp_call_expr_obstack instead.
906         (fini_pre): Remove references to expression_node_pool and
907         list_node_pool.
908
909         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
910         and walk arguments explicitly instead of as a list.
911
912         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
913         (mx_register_decls): Likewise.
914         (mudflap_register_call): Likewise.
915         (mudflap_finish_file): Likewise.
916
917         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
918         (ipa_callsite_compute_param): Likewise.
919
920         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
921         accessors and constructor.
922
923         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
924         accessors and constructor.
925         (convert_tramp_reference): Likewise.
926         (convert_call_expr): Likewise.
927         (finalize_nesting_tree_1): Likewise.
928
929         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
930         accessors.
931
932         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
933
934         * tree-inline.c (initialize_inlined_parameters): Pass entire
935         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
936         accessors.
937         (estimate_num_insns_1): Use new CALL_EXPR accessors.
938         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
939
940         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
941         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
942         (vectorizable_reduction): Likewise.
943         (vectorizable_call): Use new CALL_EXPR iterators.
944         (vectorizable_conversion): Use build_call_expr.
945         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
946         (vect_gen_widened_results_half): Use build_call_expr.
947         (vect_setup_realignment): Likewise.
948         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
949
950         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
951         (pass_through_call): Likewise.
952         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
953         fold_builtin.
954
955         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
956         (tree_gen_pow2_profiler): Likewise.
957         (tree_gen_one_value_profiler): Likewise.
958         (tree_gen_ic_func_profiler): Likewise.
959         (tree_gen_average_profiler): Likewise.
960         (tree_gen_ior_profiler): Likewise.
961
962         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
963         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
964         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
965
966         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
967         of TREE_CODE_LENGTH.
968
969         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
970         of TREE_CODE_LENGTH.
971
972         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
973         constructor.
974         (convert_to_integer): Likewise.
975
976         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
977         accessors.
978
979 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
980             Brooks Moses  <brooks.moses@codesourcery.com>
981             Lee Millward  <lee.millward@codesourcery.com>
982
983         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
984         accessors.
985         * config/frv/frv.c (frv_expand_builtin): Likewise.
986         * config/s390/s390.c (s390_expand_builtin): Likewise.
987
988         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
989         (sparc_expand_builtin): Use new CALL_EXPR accessors.
990
991         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
992         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
993         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
994         (ix86_expand_store_builtin): Likewise.
995         (ix86_expand_unop_builtin): Likewise.
996         (ix86_expand_unop1_builtin): Likewise.
997         (ix86_expand_sse_compare): Likewise.
998         (ix86_expand_sse_comi): Likewise.
999         (ix86_expand_vec_init_builtin): Likewise.
1000         (ix86_expand_vec_ext_builtin): Likewise.
1001         (ix86_expand_vec_set_builtin): Likewise.
1002         (ix86_expand_builtin): Use new CALL_EXPR accessors.
1003
1004         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
1005         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
1006
1007         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
1008         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1009         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
1010
1011         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
1012         build_call_expr.
1013         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
1014         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
1015         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1016         (altivec_expand_abs_builtin): Likewise.
1017         (rs6000_expand_binop_builtin): Likewise.
1018         (altivec_expand_predicate_builtin): Likewise.
1019         (altivec_expand_lv_builtin): Likewise.
1020         (spe_expand_stv_builtin): Likewise.
1021         (altivec_expand_stv_builtin): Likewise.
1022         (rs6000_expand_ternop_builtin): Likewise.
1023         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
1024         (altivec_expand_st_builtin): Likewise.
1025         (altivec_expand_dst_builtin): Likewise.
1026         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
1027         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1028         (altivec_expand_vec_set_builtin): Likewise.
1029         (altivec_expand_vec_ext_builtin): Likewise.
1030         (altivec_expand_builtin): Use new CALL_EXPR accessors.
1031         (spe_expand_builtin): Likewise.
1032         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
1033         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1034         (spe_expand_evsel_builtin): Likewise.
1035         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
1036         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
1037
1038         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
1039         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1040         (arm_expand_unop_builtin): Likewise.
1041         (arm_expand_builtin): Use new CALL_EXPR accessors.
1042
1043         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
1044         accessors.
1045
1046         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
1047         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1048         (bfin_expand_unop_builtin): Likewise.
1049         (bfin_expand_builtin): Use new CALL_EXPR accessors.
1050
1051 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1052             Brooks Moses  <brooks.moses@codesourcery.com>
1053             Lee Millward  <lee.millward@codesourcery.com>
1054
1055         * c-semantics.c (build_stmt): Add internal diagnostic check.
1056
1057         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
1058         accessors.  Print arguments explicitly instead of as a list.
1059
1060         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
1061
1062         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
1063         (c_finish_omp_flish): Likewise.
1064
1065         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
1066         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
1067         instead of TREE_CODE_LENGTH.
1068         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
1069         (c_warn_unused_result): Likewise.
1070
1071 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1072
1073         PR c/26494
1074         * doc/invoke.texi (Warning Options): Remove
1075         -Werror-implicit-function-declaration.
1076         (Wimplicit-function-declaration): Update description.
1077         * opts.c (common_handle_option): Move handling of -Werror=* to...
1078         (enable_warning_as_error): ...here.
1079         * opts.h (enable_warning_as_error): Declare.
1080         * c-decl.c (implicit_decl_warning): Unless
1081         -Wno-implicit-function-declaration is given, emit a pedwarn if
1082         -std=c99 or emit a warning if -Wimplicit-function-declaration.
1083         * c.opt (Wimplicit-function-declaration): Replace
1084         mesg_implicit_function_declaration with
1085         warn_implicit_function_declaration.
1086         * c-opts.c (c_common_handle_option):
1087         -Werror-implicit-function-declaration is exactly equal as
1088         -Werror=implicit-function-declaration.
1089         (set_Wimplicit): Replace mesg_implicit_function_declaration with
1090         warn_implicit_function_declaration.
1091         (c_common_post_options): -Wimplict-function-declaration is enabled
1092         by default by -std=c99, otherwise is disabled by default.
1093         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
1094
1095 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1096
1097         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
1098         DECL on the rhs to a DECL on the lhs for debug info purposes if the
1099         former is ignored but not the latter.
1100
1101 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1102
1103         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
1104         is made and the reference doesn't use the alias set of its type,
1105         do not create the temporary using that type.
1106
1107 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
1108
1109         * jump.c: Remove prototypes for delete_computation and
1110         delete_prior_computation.
1111
1112 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1113
1114         * jump.c (get_label_after): Delete.
1115         (get_label_before, delete_computation, delete_jump,
1116         delete_prior_computation, follow_jumps): Move...
1117         * reorg.c (delete_computation, delete_prior_computation): ... here...
1118         (get_label_before, delete_jump): ... making these static ...
1119         (follow_jumps): ... and simplifying this since it only runs after
1120         reload.
1121         * rtl.h (get_label_after, get_label_before, delete_jump,
1122         follow_jumps): Delete prototypes.
1123
1124 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1125
1126         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1127
1128 2007-02-15  Nick Clifton  <nickc@redhat.com>
1129
1130         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
1131         order to prevent it from being munged by the target.
1132
1133 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
1134
1135         * config/i386/i386.md: Remove misleading comment.
1136
1137 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1138
1139         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
1140         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
1141         invalid patterns.
1142
1143 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1144
1145         * tree-sra.c (instantiate_missing_elements): Canonicalize
1146         bit-field types.
1147         (sra_build_assignment): New.
1148         (generate_copy_inout, generate_element_copy,
1149         generate_element_zero, generate_one_element_init): Use it.
1150
1151 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1152
1153         * tree-sra.c (instantiate_missing_elements): Canonicalize
1154         bit-field types.
1155         (sra_build_assignment): New.
1156         (generate_copy_inout, generate_element_copy,
1157         generate_element_zero, generate_one_element_init): Use it.
1158
1159 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1160
1161         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
1162         limbo die nodes.
1163
1164 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
1165
1166         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
1167         types as aggregates not scalars.
1168         * function.c (assign_stack_temp_for_type): Likewise.
1169
1170 2007-02-14  Roger Sayle  <roger@eyesopen.com>
1171             Zdenek Dvorak  <dvorakz@suse.cz>
1172
1173         * tree-dump.c (dump_switch_p_1): Require exact match of the option
1174         name.
1175
1176 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
1177
1178         * passes.c (next_pass_1): Clear the next field of the copied
1179         pass structure.
1180
1181 2007-02-14  Richard Henderson  <rth@redhat.com>
1182
1183         * tree-sra.c (early_sra): New.
1184         (decl_can_be_decomposed_p): Deny va_list if early_sra.
1185         (tree_sra_early, pass_sra_early): New.
1186         * tree-pass.h (pass_sra_early): Declare.
1187         * passes.c (init_optimization_passes): Use it.
1188
1189 2007-02-14  Richard Guenther  <rguenther@suse.de>
1190
1191         * flags.h (issue_strict_overflow_warning): Convert to a macro.
1192
1193 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
1194
1195          PR tree-optimization/30771
1196         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
1197         also phi nodes.
1198         (vect_analyze_operations): Induction phis can now be marked as
1199         used_in_loop.
1200         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
1201         Update documentation accordingly.
1202
1203 2007-02-14  Nick Clifton  <nickc@redhat.com>
1204
1205         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
1206         most 3 arguments are supported.
1207         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
1208
1209 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
1210
1211         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1212         Ensure dst->current is valid.
1213
1214 2007-02-13  Paul Brook  <paul@codesourcery.com>
1215
1216         * config.gcc: Add arm*-*-uclinux-*eabi.
1217         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
1218         (SUBTARGET_EXTRA_LINK_SPEC): Define.
1219         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
1220         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
1221         (LINK_SPEC): Define.
1222         (LIB_SPEC): Define.
1223         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
1224         register.
1225         * config/arm/uclinux-eabi.h: New file.
1226         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
1227         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
1228         based targets.
1229
1230 2007-02-13  Ian Lance Taylor  <iant@google.com>
1231
1232         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
1233         * flags.h (warn_strict_overflow): Declare.
1234         (enum warn_strict_overflow_code): Define.
1235         (issue_strict_overflow_warning): New static inline function.
1236         * opts.c (warn_strict_overflow): New variable.
1237         (common_handle_option): Handle OPT_Wstrict_overflow and
1238         OPT_Wstrict_overflow_.
1239         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
1240         OPT_Wall.
1241         * fold-const.c: Include intl.h.
1242         (fold_deferring_overflow_warnings): New static variable.
1243         (fold_deferred_overflow_warning): New static variable.
1244         (fold_deferred_overflow_code): New static variable.
1245         (fold_defer_overflow_warnings): New function.
1246         (fold_undefer_overflow_warnings): New function.
1247         (fold_undefer_and_ignore_overflow_warnings): New function.
1248         (fold_deferring_overflow_warnings_p): New function.
1249         (fold_overflow_warning): New static function.
1250         (make_range): Add strict_overflow_p parameter.  Change all
1251         callers.
1252         (extract_muldiv, extract_muldiv_1): Likewise.
1253         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
1254         tree_expr_nonnegative_p.
1255         (fold_negate_expr): Call fold_overflow_warning.
1256         (fold_range_test): Likewise.
1257         (fold_comparison): Likewise.
1258         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
1259         instead of tree_expr_nonnegative_p.
1260         (tree_expr_nonnegative_warnv_p): Rename from
1261         tree_expr_nonnegative_p, add strict_overflow_p parameter.
1262         (tree_expr_nonnegative_p): New function.
1263         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
1264         strict_overflow_p parameter.
1265         (tree_expr_nonzero_p): New function.
1266         * passes.c (verify_interpass_invariants): New static function.
1267         (execute_one_pass): Call it.
1268         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
1269         warnings.
1270         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
1271         (estimate_numbers_of_iterations): Likewise.
1272         (scev_probably_wraps_p): Likewise.
1273         * tree-ssa-ccp.c: Include "toplev.h".
1274         (evaluate_stmt): Defer fold overflow warnings until we know we are
1275         going to optimize.
1276         (struct fold_stmt_r_data): Add stmt field.
1277         (fold_stmt_r): Defer fold overflow warnings until we know we
1278         optimized.
1279         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
1280         (fold_stmt_inplace): Likewise.
1281         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
1282         (cleanup_control_expr_graph): Defer fold overflow warnings until
1283         we know we are going to optimize.
1284         * tree-cfg.c (fold_cond_expr_cond): Likewise.
1285         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
1286         Likewise.
1287         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
1288         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
1289         * tree-ssa-loop-manip.c (create_iv): Likewise.
1290         * c-typeck.c (build_conditional_expr): Likewise.
1291         (build_binary_op): Likewise.
1292         * tree-vrp.c (vrp_expr_computes_nonzero): Call
1293         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
1294         (extract_range_from_unary_expr): Likewise.
1295         * simplify-rtx.c (simplify_const_relational_operation): Warn when
1296         assuming that signed overflow does not occur.
1297         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
1298         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
1299         (fold_defer_overflow_warnings): Declare.
1300         (fold_undefer_overflow_warnings): Declare.
1301         (fold_undefer_and_ignore_overflow_warnings): Declare.
1302         (fold_deferring_overflow_warnings_p): Declare.
1303         (tree_expr_nonzero_warnv_p): Declare.
1304         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
1305         of warning options.
1306         (Warning Options): Document -Wstrict-overflow.
1307         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
1308         (tree-ssa-ccp.o): Likewise.
1309         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
1310         (fold-const.o): Depend on intl.h.
1311
1312 2007-02-13  Ian Lance Taylor  <iant@google.com>
1313
1314         PR middle-end/30751
1315         * lower-subreg.c (resolve_simple_move): Decompose subregs in
1316         addresses.
1317
1318 2007-02-13  Stuart Hastings  <stuart@apple.com>
1319
1320         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
1321
1322 2007-02-13  Richard Henderson  <rth@redhat.com>
1323
1324         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
1325         handled_component_p before looking for the indirect_ref.
1326
1327 2007-02-13  Richard Henderson  <rth@redhat.com>
1328
1329         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
1330         remove flags clobber.
1331         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
1332         (bswaphi_lowpart): New.
1333         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
1334         remove TARGET_BSWAP test.  Delete expander of the same name.
1335
1336         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
1337         (expand_unop): Use them.
1338
1339 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
1340
1341         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
1342         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
1343         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
1344         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
1345         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
1346         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
1347         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
1348         assembler dialect choice from asm templates.
1349
1350 2007-02-12  Richard Henderson  <rth@redhat.com>
1351
1352         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
1353         (fixuns_trunc<SSEMODEF>si2): Use it.
1354         * config/i386/sse.md (vec_setv4sf_0): Export.
1355         * config/i386/i386.c (ix86_build_const_vector): Export.
1356         (ix86_split_convert_uns_si_sse): Rename from
1357         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
1358         * config/i386/i386-protos.h: Update.
1359
1360 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1361
1362         PR c/29521
1363         * c-typeck.c (c_finish_return): Improve warning message.
1364
1365 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1366
1367         * alias.c (find_symbolic_term): Delete unused function.
1368
1369 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
1370
1371         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
1372         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
1373         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
1374
1375 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1376
1377         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
1378         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
1379         the function, temporarily point the debug interface to the null one.
1380
1381 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1382
1383         * dwarf2out.c (round_up_to_align): New static function.
1384         (field_byte_offset): Use it to round the offset.
1385
1386 2007-02-12  Richard Henderson  <rth@redhat.com>
1387
1388         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
1389         (inswl_const): Export.
1390
1391 2007-02-12  Richard Henderson  <rth@redhat.com>
1392
1393         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
1394         result mode of the libcall, convert back to outmode.
1395
1396 2007-02-12  Roger Sayle  <roger@eyesopen.com>
1397
1398         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
1399         (bswapdi2): New define_expand to implement 32-bit implementation.
1400
1401 2007-02-12  Nick Clifton  <nickc@redhat.com>
1402
1403         * doc/invoke.texi (Overall Options): Document --help=.
1404         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
1405         (cc1_options): Pass --help= on to cc1.
1406         (display_help): Add description of --help=.
1407         (process_command): Add code to handle --help=.  Allow translated
1408         --help and --target-help switches to be passed on to compiler
1409         sub-process.
1410         (main): Remove unused if statement.
1411         * opts.c (columns): Remove.
1412         (LEFT_COLUMN): Define.
1413         (wrap_help): Add columns argument.
1414         (print_filtered_help): Change parameters to be an include bitmask,
1415         an exclude bitmask, an any bitmask and the column width.  Move the
1416         code to display the params list here.  Add code to display the
1417         status of options rather than their descriptions if the quiet flag
1418         is not active.
1419         (print_specific_help): Change parameters to be an include bitmask,
1420         an exclude bitmask and an any bitmask.  Move code to look up the
1421         column width here.  Decide upon the title for an options listing.
1422         (common_handle_options): Add code to handle --help=.  Adapt code
1423         for --help and --target-help to use the revised form of the
1424         print_specific_help function.
1425         (print_help): Delete.
1426         (print_param_help): Delete.
1427         (print_switch): Delete.
1428         * opts.h (cl_lang_count): Add prototype.
1429         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
1430         CL_MAX_OPTION_CLASS): New defines.
1431         * optc-gen.awk: Add construction of cl_lang_count.
1432         * c.opt: Add Warning attribute to warning options and Optimization
1433         attribute to optimization options.
1434         * common.opt: Likewise.
1435         Add --help=.
1436         Add -fhelp and -ftarget-help as aliases for the transformed --help
1437         and --target-help options.
1438         * opt-functions.awk: Add code to handle Warning and Optimization
1439         attributes.
1440
1441 2007-02-12  Richard Henderson  <rth@redhat.com>
1442
1443         * config/alpha/constraints.md: New file.
1444         * config/alpha/alpha.c: Include tm-constrs.h.
1445         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
1446         alpha_extra_constraint): Remove.
1447         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
1448         * config/alpha/alpha-protos.h: Update.
1449         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
1450         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
1451         (EXTRA_CONSTRAINT): Remove.
1452         * config/alpha/alpha.md: Include constraints.md.
1453         (adddi splitter): Use satisfies_constraint_*.
1454         * config/alpha/predicates.md (add_operand): Likewise.
1455         (sext_add_operand, addition_operation): Likewise.
1456
1457 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
1458
1459         PR tree-optimization/29145
1460         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
1461         in our handling of restrict qualified pointers.
1462
1463 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1464
1465         PR middle-end/7651
1466         * doc/invoke.texi (Wunused-value): Update description.
1467         (Wextra): Delete item.
1468         * opts.c (set_Wextra): Don't use the value of Wextra to set the
1469         value of Wunused-value.
1470         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
1471         (c_finish_stmt_expr): Don't check extra_warnings.
1472         (emit_side_effect_warnings): The caller is responsible to check
1473         warn_unused_value.
1474
1475 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1476             Matt Thomas  <matt@3am-software.com>
1477
1478         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
1479
1480 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1481
1482         * simplify-rtx.c (simplify_relational_operation_1): Optimize
1483         comparisons of POPCOUNT against zero.
1484         (simplify_const_relational_operation): Likewise.
1485
1486 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1487
1488         * doc/invoke.texi (Wextra): Delete outdated paragraph.
1489
1490 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1491
1492         * dwarf2out.c (root_type): Delete unused function.
1493
1494 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1495
1496         * genattrtab.c (contained_in_p): Delete unused function.
1497         (write_expr_attr_cache): Likewise.
1498
1499 2007-02-11  Jan Hubicka  <jh@suse.cz>
1500
1501         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
1502         previous patch.
1503
1504 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
1505
1506         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
1507         to add the REG_EQ* note.
1508         * see.c (see_merge_one_use_extension): Likewise.
1509         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
1510         turn REG_EQUAL notes into REG_EQUIV notes if the target
1511         register may have more than one set.
1512         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
1513         * gcse.c (try_replace_reg): Likewise.
1514         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
1515         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
1516         more than one REG_EQUIV note.
1517         * reload1.c (gen_reload): Use set_unique_reg_note.
1518
1519 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
1520
1521         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
1522         (ix86_builtin_conversion): New function.
1523
1524 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
1525
1526         PR target/29487
1527         * tree.h (DECL_REPLACEABLE_P): New macro.
1528         * except.c (set_nothrow_function_flags): Likewise.
1529
1530 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
1531             Ira Rosen  <irar@il.ibm.com>
1532             Dorit Nuzman  <dorit@il.ibm.com>
1533
1534         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
1535         * targhooks.c (default_builtin_vectorized_conversion): New.
1536         * targhooks.h (default_builtin_vectorized_function): New declaration.
1537         * target.h (struct vectorize): Add builtin_conversion field.
1538         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
1539         stmt_vec_info_type value.
1540         (vectorizable_conversion): New declaration.
1541         * tree-vect-analyze.c (vect_analyze_operations): Add
1542         vectorizable_conversion call.
1543         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
1544         * tree-vect-transform.c (vectorizable_conversion): New function.
1545         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
1546         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
1547         mode.
1548         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
1549         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
1550         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
1551         or ALTIVEC_BUILTIN_VCFSX.
1552
1553 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1554
1555         PR target/30634
1556         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
1557         CONST_DOUBLE and operand 0 is a hard register.
1558         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
1559         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
1560         is a hard floating-point register.
1561
1562 2007-02-10  Richard Henderson  <rth@redhat.com>
1563             Jakub Jelinek  <jakub@redhat.com>
1564             Alexandre Oliva  <aoliva@redhat.com>
1565
1566         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
1567         * builtin-types.def (BT_WORD): Make unsigned.
1568         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
1569         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
1570         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
1571         * c-decl.c (grokdeclarator): Don't error if !have_tls.
1572         * c-parser.c (c_parser_omp_threadprivate): Likewise.
1573         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
1574         emulated tls.
1575         * expr.c (emutls_var_address): New.
1576         (expand_expr_real_1): Expand emulated tls.
1577         (expand_expr_addr_expr_1): Likewise.
1578         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
1579         * output.h (emutls_finish): Declare.
1580         * toplev.c (compile_file): Call it.
1581         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
1582         address before wrapping in CONST.
1583         * varasm.c (emutls_htab, emutls_object_type): New.
1584         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
1585         (get_emutls_object_name, get_emutls_object_type): New.
1586         (get_emutls_init_templ_addr, emutls_decl): New.
1587         (emutls_common_1, emutls_finish): New.
1588         (assemble_variable): When emulating tls, swap decls; generate
1589         constructor for the emutls objects.
1590         (do_assemble_alias): When emulating tls, swap decl and target name.
1591         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
1592         for emulated tls.
1593         * varpool.c (decide_is_variable_needed): Look at force_output.
1594         Recurse for emulated tls.
1595         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
1596         with decide_is_variable_needed.
1597         * emutls.c: New file.
1598         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
1599         tls_object for real tls.
1600
1601 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1602
1603         PR rtl-optimization/29599
1604         * reload1.c (eliminate_regs_in_insn): Take the destination
1605         mode into account when computing the offset.
1606
1607 2007-02-09  Stuart Hastings  <stuart@apple.com>
1608             Richard Henderson  <rth@redhat.com>
1609
1610         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1611         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1612         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
1613         fixuns_truncdfhi2): New.
1614         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
1615         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
1616         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
1617         (floatunssidf2): Allow nonimmediate source.
1618         * gcc/config/i386/sse.md (movdi_to_sse): New.
1619         (vec_concatv2di): Drop '*'.
1620         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
1621         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1622         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
1623         New.
1624         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
1625         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1626         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
1627         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
1628         (ix86_build_signbit_mask): Fix decl of v, refactor to call
1629         ix86_build_const_vector.
1630         (x86_emit_floatuns): Rewrite.
1631
1632 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1633
1634         * genautomata.c (longest_path_length): Delete unused function.
1635         (struct state): Delete unused longest_path_length.
1636         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
1637         (get_free_state): Delete unused.
1638
1639 2007-02-09  Jan Hubicka  <jh@suse.cz>
1640
1641         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
1642         * doc/invoke.texi (inline-unit-growth): Update default value.
1643
1644         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
1645         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
1646         (rebuild_cgraph_edges): Likewise.
1647         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
1648         (dump_cgraph_node): Dump frequencies.
1649         (cgraph_clone_edge): Add frequency scales.
1650         (cgraph_clone_node): Add freuqnecy.
1651         * cgraph.h (cgraph_edge): Add freuqnecy argument.
1652         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
1653         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
1654         * tree-pass.h (TODO_rebuild_frequencies): New constant.
1655         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
1656         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
1657         (save_inline_function_body): Likewise.
1658         * ipa-inline.c: inluce rtl.h
1659         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
1660         (cgraph_edge_badness): Use frequencies.
1661         (cgraph_decide_recursive_inlining): Update clonning.
1662         (cgraph_decide_inlining_of_small_function): Dump frequency.
1663         * predict.c (estimate_bb_frequencies): Export.
1664         * predict.h (estimate_bb_frequencies): Declare.
1665         * tree-inline.c (copy_bb): Watch overflows.
1666         (expand_call_inline): Update call of cgraph_create_edge.
1667         (optimize_inline_calls): Use TODO flags to update frequnecies.
1668         * passes.h: Include predict.h
1669         (init_optimization_passes): Move profile ahead.
1670         (execute_function_todo): Handle TODO_rebuild_frequencies.
1671
1672 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1673
1674         * config/alpha/alpha.c (emit_insxl): Force the first operand of
1675         the insbl or inswl pattern into a register.
1676
1677 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1678
1679         * config/ia64/ia64.md (bswapdi2): New define_insn.
1680
1681 2007-02-09  Richard Henderson  <rth@redhat.com>
1682
1683         * config/i386/constraints.md (Ym): New constraint.
1684         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
1685         (movdi_1_rex64): Split sse and xmm general register moves from
1686         memory move alternatives.  Use conditional register constraints.
1687         (movsf_1, movdf_integer): Likewise.
1688         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
1689         (movdf_integer_rex64): New.
1690         (pushsf_rex64): Fix output constraints.
1691         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
1692         (sse2_stored): Likewise.
1693         (sse2_storeq_rex64): New.
1694         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
1695         amd and not generic.
1696         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
1697         for optimize_size.  Remove SF/DFmode hack.
1698
1699 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
1700
1701         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
1702         (bit_SSE4a): New.
1703
1704 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
1705             Richard Sandiford  <richard@codesourcery.com>
1706
1707         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
1708         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
1709         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
1710         m68k/t-mlib to tmake_file.
1711         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
1712         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
1713         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
1714         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
1715         variable is not empty, add t-$m68k_arch_family to tmake_file.
1716         Add t-mlibs to tmake_file.
1717         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
1718         * config/m68k/t-cf: New file.
1719         * config/m68k/t-m68k: Likewise.
1720         * config/m68k/t-mlibs: Likewise.
1721         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1722         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1723         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1724         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1725         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
1726         Delete.
1727         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
1728         (INSTALL_LIBGCC): Delete.
1729         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1730         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1731         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1732         (M68K_MLIB_CPU): Define.
1733         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1734         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1735         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
1736
1737 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
1738             Richard Guenther  <rguenther@suse.de>
1739
1740         PR middle-end/23361
1741         * fold-const.c (fold_comparison): Handle obfuscated comparisons
1742         against INT_MIN/INT_MAX.
1743         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
1744         file if a loop is removed.
1745
1746 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
1747
1748         * calls.c (store_one_arg): Pass correct alignment to
1749         emit_push_insn for non-BLKmode values.
1750         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
1751         unaligned stack slot via a suitably aligned slot.
1752
1753 2007-02-08  DJ Delorie  <dj@redhat.com>
1754
1755         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
1756         warnings.
1757         (legal_subregs): Use unsigned char, make const.
1758         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
1759
1760 2007-02-08  Paul Brook  <paul@codesourcery.com>
1761
1762         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
1763         special interworking needed.
1764
1765 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
1766
1767         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
1768         conditional to __SSE2__.
1769         (Entries below should have been added to first ChangeLog
1770         entry for amdfam10 dated 2007-02-05)
1771         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
1772         defined.
1773         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
1774         defined.
1775         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
1776         defined.
1777
1778 2007-02-08  DJ Delorie  <dj@redhat.com>
1779
1780         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
1781         * config/m32c/m32c.c (legal_subregs): New.
1782         (m32c_illegal_subreg_p): New.
1783         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
1784         unsupported subregs of hard regs.
1785
1786 2007-02-08  Jan Hubicka  <jh@suse.cz>
1787
1788         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
1789         the same one; always update histograms.
1790
1791 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1792
1793         * passes.c (init_optimization_passes): Tidy comment.
1794
1795 2007-02-08  Roger Sayle  <roger@eyesopen.com>
1796
1797         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
1798         strip zero_extend, bswap and rotates from POCOUNT's argument.
1799         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
1800         zero_extend and rotates from PARITY's argument.
1801         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
1802         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
1803         of an integer constant at compile-time.
1804
1805 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1806
1807         PR 30562
1808         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
1809         Update all users.
1810         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
1811         users.
1812         (init_alias_info):
1813         * tree-ssa-live.c (remove_unused_locals): Do not remove
1814         TREE_ADDRESSABLE variables.
1815         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
1816         * tree-ssa-operands.c (add_virtual_operand): Remove argument
1817         FOR_CLOBBER.  Update all users.
1818         If VAR has an associated alias set, add a virtual operand for
1819         it if no alias is found to conflict with the memory reference.
1820
1821 2007-02-07  Jan Hubicka  <jh@suse.cz>
1822             Robert Kidd <rkidd@crhc.uiuc.edu>
1823
1824         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
1825
1826 2007-02-07  Ian Lance Taylor  <iant@google.com>
1827
1828         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
1829
1830 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1831
1832         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
1833         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
1834         tablejumpdi, movsi_to_cr_one): Remove constraints from
1835         define_expand's match_operands.
1836
1837 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1838
1839         * global.c (compute_regsets): Move declatation of "i" inside of
1840         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
1841
1842 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
1843
1844         PR c++/30703
1845         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
1846         of INDIRECT_REF <RESULT_DECL>.
1847
1848         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
1849
1850 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
1851             Kaz Kojima  <kkojima@gcc.gnu.org>
1852
1853         PR target/29746
1854         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
1855         properly.
1856         (sh_initialize_trampoline): Add parentheses to avoid a warning.
1857
1858 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1859
1860         * doc/loop.texi: Document possibility not to perform disambiguation
1861         of loops with multiple latches.
1862         * cfgloopmanip.c (alp_enum_p): Removed.
1863         (add_loop): Handle subloops.  Use get_loop_body_with_size.
1864         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
1865         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
1866         the new forwarder block.
1867         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
1868         Handle the case latch is NULL.
1869         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
1870         when marking loop exits.
1871         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
1872         be modified.
1873         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
1874         disambiguate_loops_with_multiple_latches.
1875         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
1876         before fix_loop_structure.
1877         * cfgloop.c: Include pointer-set.h and output.h.
1878         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
1879         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
1880         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
1881         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
1882         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
1883         disambiguate_multiple_latches, get_loop_body_with_size,
1884         disambiguate_loops_with_multiple_latches): New functions.
1885         (flow_loop_dump): Dump multiple latch edges.
1886         (flow_loop_nodes_find): Handle loops with multiple latches.
1887         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
1888         (glb_enum_p): Modified.
1889         (get_loop_body): Use get_loop_body_with_size.
1890         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
1891         (AVOID_CFG_MODIFICATIONS): New constant.
1892         (disambiguate_loops_with_multiple_latches, add_loop,
1893         get_loop_body_with_size): Declare.
1894         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
1895
1896 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
1897
1898         PR inline-asm/28686
1899         * global.c (compute_regsets): New function.
1900         (global_alloc): Refactored ELIMINABLE_REGSET
1901         and NO_GLOBAL_ALLOC_REGS computation out.
1902         (rest_of_handle_global_alloc): Call compute_regsets()
1903         for non-optimizing case.
1904
1905 2007-02-06  Richard Henderson  <rth@redhat.com>
1906
1907         * config/i386/constraints.md (Y2): Rename from Y.
1908         (Yi): New constraint.
1909         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
1910         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
1911         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
1912         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
1913         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
1914         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
1915         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
1916         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
1917         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
1918         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
1919         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
1920         vec_extractv2si_1): Change Y constraints to Y2.
1921         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
1922         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
1923         Change Y constraints to Y2.
1924         (sse2_loadld): Change Y constraints to x.
1925
1926 2007-02-06  Roger Sayle  <roger@eyesopen.com>
1927
1928         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
1929         (parity<mode>2): New define_expand using rs6000_emit_parity.
1930         * config/rs6000/rs6000.c (rs6000_emit_popcount,
1931         rs6000_emit_parity): New functions.
1932         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
1933         rs6000_emit_parity): Prototype here.
1934
1935 2007-02-06  Ian Lance Taylor  <iant@google.com>
1936
1937         * lower-subreg.c (simple_move_operand): Reject CONST.
1938         (resolve_clobber): Call validate_change rather than directly
1939         assigning to XEXP (pat, 0).
1940
1941 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
1942
1943         * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
1944         (tree-ssa-reassoc.o): Add pointer-set.h dependency.
1945         (tree-cfg.o): Remove hashtab.h dependency.
1946
1947         * tree-ssa-loop-ivopts.c: Include pointer-set.h.
1948         (struct ivopts_data): Change niters to pointer_map_t.
1949         (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
1950         (niter_for_exit): Create pointer_map on demand.  Change for
1951         pointer_map API.
1952         (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
1953         (free_loop_data): Destroy data->niters if created and reset field.
1954         (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
1955         (tree_ssa_iv_optimize_loop): Check for presence of stale data.
1956
1957         * tree-ssa-reassoc.c: Include pointer-set.h.
1958         (bb_rank): Change to long *.
1959         (operand_rank): Change to pointer_map_t.
1960         (find_operand_rank): Return long, -1 if not found.  Declare as inline.
1961         (insert_operand_rank): Accept long.
1962         (operand_entry_hash, operand_entry_eq): Remove.
1963         (get_rank): Return long.  Adjust for changes above.
1964         (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
1965         and operand_rank.
1966         (fini_reassoc): Delete operand_rank with pointer_map_destroy.
1967
1968         * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
1969         (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
1970         (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
1971         is not NULL.
1972         (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
1973         directly since it cannot be NULL.
1974         (get_vi_for_tree): Rewrite for pointer_map API.
1975         (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
1976         (init_alias_vars): Create vi_for_tree as pointer_map.
1977         (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.
1978
1979         * tree-cfg.c: Don't include hashtab.h.
1980         (edge_to_cases): Declare as pointer_map.
1981         (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
1982         Delete.
1983         (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
1984         (start_recording_case_labels): Create edge_to_cases as pointer_map.
1985         (end_recoding_case_labels): Cleanup edge_to_cases manually before
1986         destroying it.
1987         (record_switch_edge): Delete.
1988         (get_cases_for_edge): Adjust for pointer_map API, inline
1989         record_switch_edge (rewritten for new API), remove goto.
1990
1991 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
1992
1993         * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
1994         * tree-nested.c: Include pointer-set.h.
1995         (var_map_elt, var_map_eq, var_map_hash): Delete.
1996         (struct nesting_info): Remove GTY marker.  Change the two htab_t's
1997         to pointer_map_t's.
1998         (nesting_info_bitmap_obstack): New.
1999         (lookup_field_for_decl): Adjust for pointer_map API.
2000         (lookup_tramp_for_decl): Adjust for pointer_map API.
2001         (get_nonlocal_debug_decl): Adjust for pointer_map API.
2002         (get_local_debug_decl): Adjust for pointer_map API.
2003         (convert_nl_goto_reference): Adjust for pointer_map API.
2004         (convert_nl_goto_receiver): Adjust for pointer_map API.
2005         (create_nesting_tree): Create outside GGC space.  Create bitmap on
2006         the new obstack.  Create field_map and var_map as pointer_maps.
2007         (free_nesting_tree): Adjust for changes to create_nesting_tree.
2008         (root): Delete.
2009         (lower_nested_functions): Move root here, no need to NULL it.
2010         Initialize and release the obstack.
2011
2012 2007-02-06  Paolo Bonzini  <bonzini@gnu.org>
2013
2014         * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
2015         Remove prototypes and make them non-static.
2016         (struct tree_int_map): Remove.
2017         * tree.h (struct tree_int_map): Move here, turning TO into an
2018         unsigned int.
2019         (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.
2020
2021         * tree.h (TREE_COMPLEXITY): Remove.
2022         (struct tree_exp): Remove complexity field.
2023         * tree.c (build1_stat): Don't set it.
2024
2025 2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
2026             Victor Kaplansky  <victork@il.ibm.com>
2027
2028         * tree-vectorizer.c (vect_is_simple_use): Support induction.
2029         (vect_is_simple_reduction): Support reduction with induction as
2030         one of the operands.
2031         (vect_is_simple_iv_evolution): Fix formatting.
2032         * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
2033         formatting.  Don't mark induction phis for vectorization.
2034         (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
2035         * tree-vect-transform.c (get_initial_def_for_induction): New function.
2036         (vect_get_vec_def_for_operand): Support induction.
2037         (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
2038         induction case.
2039         (vectorizable_reduction): Support reduction with induction as one of
2040         the operands.
2041         (vectorizable_type_demotion): Use def-type of stmt argument rather
2042         than dummy def-type.
2043
2044         * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
2045         flag_tree_scev_cprop.
2046         * common.opt (tree-scev-cprop): New flag.
2047
2048         * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
2049         call to vect_get_new_vect_var.
2050
2051 2007-02-06  Ira Rosen  <irar@il.ibm.com>
2052
2053         * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
2054         vectype is not NULL.
2055         (vect_pattern_recog_1): Likewise.
2056
2057 2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2058
2059         * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
2060         (fold_negate_expr): Likewise.
2061
2062 2007-02-05  Alexandre Oliva  <aoliva@redhat.com>
2063
2064         PR debug/30189
2065         * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
2066         even if cv-qualification is the same.
2067
2068 2007-02-05  Geoffrey Keating  <geoffk@apple.com>
2069
2070         * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
2071         __enable_execute_stack on completion.
2072
2073 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2074
2075         * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
2076         athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
2077         athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
2078         athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
2079         athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
2080         athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
2081         athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
2082         athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.
2083
2084 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2085
2086         * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
2087         cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
2088         swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
2089         fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
2090         x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
2091         floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
2092         floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
2093         mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
2094         umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
2095         umuldi3_highpart_rex64, umulsi3_highpart_insn,
2096         umulsi3_highpart_zext, smuldi3_highpart_rex64,
2097         smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
2098         x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
2099         sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
2100         sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
2101         sqrtextenddfxf2_i387): Added amdfam10_decode.
2102
2103         * config/i386/athlon.md (athlon_idirect_amdfam10,
2104         athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
2105         athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
2106         athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
2107         athlon_ivector_store_amdfam10): New define_insn_reservation.
2108         (athlon_idirect_loadmov, athlon_idirect_movstore): Added
2109         amdfam10.
2110
2111 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2112
2113         * config/i386/athlon.md (athlon_call_amdfam10,
2114         athlon_pop_amdfam10, athlon_lea_amdfam10): New
2115         define_insn_reservation.
2116         (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
2117         athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
2118         athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.
2119
2120 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2121
2122         * config/i386/athlon.md (athlon_sseld_amdfam10,
2123         athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
2124         athlon_mmxssest_short_amdfam10): New define_insn_reservation.
2125
2126 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2127
2128         * config/i386/athlon.md (athlon_sseins_amdfam10): New
2129         define_insn_reservation.
2130         * config/i386/i386.md (sseins): Added sseins to define_attr type
2131         and define_attr unit.
2132         * config/i386/sse.md: Set type attribute to sseins for insertq
2133         and insertqi.
2134
2135 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2136
2137         * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
2138         ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
2139         ssecomi_load_amdfam10, ssecomi_amdfam10,
2140         sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
2141         define_insn_reservation.
2142         (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.
2143
2144 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2145
2146         * config/i386/athlon.md (cvtss2sd_load_amdfam10,
2147         cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
2148         cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
2149         cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
2150         cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
2151         cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
2152         define_insn_reservation.
2153
2154         * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
2155         cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
2156         cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
2157         cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
2158         cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.
2159
2160 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2161
2162         * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
2163         athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
2164         athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
2165         (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
2166         athlon_ssemul_load_k8): Added amdfam10.
2167
2168 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2169
2170         * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
2171         (x86_sse_unaligned_move_optimal): New variable.
2172
2173         * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
2174         m_AMDFAM10.
2175         (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
2176         for unaligned vector SSE double/single precision loads for AMDFAM10.
2177
2178 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2179
2180         * config/i386/i386.h (TARGET_AMDFAM10): New macro.
2181         (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
2182         Define TARGET_CPU_DEFAULT_amdfam10.
2183         (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
2184         (processor_type): Add PROCESSOR_AMDFAM10.
2185
2186         * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
2187         processor_type in config/i386/i386.h.
2188         Enable imul peepholes for TARGET_AMDFAM10.
2189
2190         * config.gcc: Add support for --with-cpu option for amdfam10.
2191
2192         * config/i386/i386.c (amdfam10_cost): New variable.
2193         (m_AMDFAM10): New macro.
2194         (m_ATHLON_K8_AMDFAM10): New macro.
2195         (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
2196         x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
2197         x86_promote_QImode, x86_integer_DFmode_moves,
2198         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2199         x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
2200         x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
2201         x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
2202         x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
2203         Enable/disable for amdfam10.
2204         (override_options): Add amdfam10_cost to processor_target_table.
2205         Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
2206         processor_alias_table.
2207         (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
2208         (ix86_adjust_cost): Add code for amdfam10.
2209
2210 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2211
2212         * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
2213         instruction set feature flag. Add new (-mpopcnt) flag for popcnt
2214         instruction. Add new SSE4A (-msse4a) instruction set feature flag.
2215         * config/i386/i386.h: Add builtin definition for SSE4A.
2216         * config/i386/i386.md: Add support for ABM instructions
2217         (popcnt and lzcnt).
2218         * config/i386/sse.md: Add support for SSE4A instructions
2219         (movntss, movntsd, extrq, insertq).
2220         * config/i386/i386.c: Add support for ABM and SSE4A builtins.
2221         Add -march=amdfam10 flag.
2222         * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
2223         * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
2224         and amdfam10.
2225         * doc/extend.texi: Add documentation for SSE4A builtins.
2226
2227 2007-02-05  Bob Wilson  <bob.wilson@acm.org>
2228
2229         * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.
2230
2231 2007-02-05  Richard Guenther  <rguenther@suse.de>
2232
2233         * tree-vectorizer.h (vectorizable_function): Add argument type
2234         argument, change return type.
2235         * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
2236         * tree-vect-transform.c (vectorizable_function): Handle extra
2237         argument, return vectorized function decl.
2238         (build_vectorized_function_call): Remove.
2239         (vectorizable_call): Handle calls with result and argument types
2240         differing.  Handle loop vectorization factor correctly.
2241         * targhooks.c (default_builtin_vectorized_function): Adjust for
2242         extra argument.
2243         * targhooks.h (default_builtin_vectorized_function): Likewise.
2244         * target.h (builtin_vectorized_function): Add argument type
2245         argument.
2246         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2247         extra argument, allow vectorizing of lrintf.
2248         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
2249         documentation of target hook.
2250
2251 2007-02-05  Hans-Peter Nilsson  <hp@axis.com>
2252
2253         PR target/30665
2254         * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
2255         ("*andhi_clear", andu (casesi+45)): For size-changed operand where
2256         memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.
2257
2258 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2259
2260         * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
2261         BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
2262         <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
2263         * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
2264         before canonicalizing sincos to cexpi.
2265         (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
2266
2267 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2268
2269         * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
2270         Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
2271         (alpha_init_builtins): Use alpha_add_builtins to process tables.
2272
2273 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2274
2275         * mips-tfile.c (initialize_init_file): Correct endianness test.
2276
2277 2007-02-05  Kazu Hirata  <kazu@codesourcery.com>
2278
2279         * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
2280         the 'y' constraint.
2281
2282 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2283
2284         * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
2285         saves in a PARALLEL before the register assignments.
2286
2287 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2288
2289         * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
2290         DWARF_FRAME_RETURN_COLUMN to be a general register.
2291         * dwarf2out.c (init_return_column_size): New function, split from...
2292         (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
2293         DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
2294         to be nongeneral registers.
2295         * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
2296         integer registers.
2297         (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
2298         (DWARF_ALT_FRAME_RETURN_COLUMN): Define.
2299
2300 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2301
2302         * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.
2303
2304 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2305
2306         * cfgloopmanip.c (loop_delete_branch_edge): Removed.
2307         (remove_path): Use can_remove_branch_p and remove_branch instead
2308         of loop_delete_branch_edge.
2309         * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
2310         (tree_transform_and_unroll_loop): Remove dead branches immediately.
2311         Update profile using scale_dominated_blocks_in_loop.
2312         * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
2313         * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
2314         (can_remove_branch_p, remove_branch): Declare.
2315         * tree-cfg.c (tree_can_remove_branch_p): New function.
2316         (tree_cfg_hooks): Add tree_can_remove_branch_p.
2317         * cfgrtl.c (rtl_can_remove_branch_p): New function.
2318         (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.
2319
2320 2007-02-05  Jan Hubicka  <jh@suse.cz>
2321
2322         PR middle-end/30696
2323         * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
2324         nodes in cgraph, don't remove offline copy of the function.
2325
2326 2007-02-04  Jan Hubicka  <jh@suse.cz>
2327
2328         * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
2329         vectors might cause maybe_lookup_element_for_expr to be called
2330         on non-sra-candidate.
2331
2332 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2333
2334         * config/bfin/bfin-modes.def, config/bfin/bfin.c,
2335         config/bfin/bfin.md, config/bfin/predicates.md: Follow
2336         spelling conventions.
2337
2338 2007-02-04  Richard Guenther  <rguenther@suse.de>
2339
2340         PR middle-end/30636
2341         * fold-const.c (try_move_mult_to_index): Make sure to not
2342         overflow one dimension of a multi-dimensional array access.
2343
2344 2007-02-04  Jan Hubicka  <jh@suse.cz>
2345
2346         * passes.c (init_optimization_passes): Reindent.
2347
2348 2007-02-04  Jan Hubicka  <jh@suse.cz>
2349             Eric Botcazou  <ebotcazou@adacore.com>
2350
2351         * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
2352         (execute_fixup_cfg): Break out the abnormal goto code.
2353         * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
2354         (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
2355         (optimize_inline_calls): Call make_nonlocal_label_edges.
2356
2357 2007-02-04  Jan Hubicka  <jh@suse.cz>
2358
2359         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
2360         true when something was changed.
2361         (rename_ssa_copies): When something was changed, do
2362         TODO_remove_unused_locals.
2363         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
2364         add TODO_remove_unused_locals when instruction was removed.
2365
2366 2007-02-04  Jan Hubicka  <jh@suse.cz>
2367
2368         * ipa-inline.c (try_inline): Improve debug output; work on already
2369         inline edges too.
2370         (cgraph_decide_inlining_incrementally): Indent; improve debug output;
2371         call try_inline for already inlined edges too when flattening;
2372         inline also functions that make callee growth but overall unit size
2373         reduce.
2374
2375 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2376
2377         * config/m32c/bitops.md, config/m32c/jump.md,
2378         config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
2379         config/m32r/m32r.h, config/m32r/m32r.md,
2380         config/m32r/predicates.md, config/m68hc11/larith.asm,
2381         config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
2382         config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
2383         config/mips/mips-protos.h, config/mips/mips.c,
2384         config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
2385         config/mn10300/mn10300.h, config/mn10300/predicates.md,
2386         config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
2387         spelling conventions.
2388
2389         * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
2390         Follow spelling conventions.
2391
2392 2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>
2393
2394         * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
2395         warn about C++0x compatibility.
2396
2397 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2398
2399         * config/h8300/h8300.c, config/h8300/h8300.h,
2400         config/h8300/h8300.md: Follow spelling conventions.
2401
2402 2007-02-03  Uros Bizjak  <ubizjak@gmail.com>
2403
2404         PR middle-end/30667
2405         * combine.c (try_combine): Do not substitute source operand
2406         with constants wider than 2 * HOST_BITS_PER_WIDE_INT.
2407
2408 2007-02-03  Jan Hubicka  <jh@suse.cz>
2409
2410         PR gcov-profile/30650
2411         * value-prof.c (stringop_block_profile): Fix handling of size counter;
2412         do not divide by zero for never executed counters.
2413         (tree_find_values_to_profile): Fix counters.
2414         * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2415
2416 2007-02-03  Ian Lance Taylor  <iant@google.com>
2417
2418         * lower-subreg.c (simple_move_operand): New static function,
2419         broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
2420         operands.
2421         (simple_move): Call simple_move_operand.
2422         (find_decomposable_subregs): Add special handling of MEMs.
2423         (can_decompose_p): Rename from cannot_decompose_p.  Reverse
2424         meaning of return value.  If we see a hard register, test whether
2425         it can store a word_mode value.  Change all callers.
2426
2427 2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2428
2429         * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
2430         ftrapv insns and expanders.
2431         (subdi3): Change define_expand operand 1 to arith11_operand, and
2432         operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
2433         pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
2434         handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
2435         respectively.
2436
2437         PR middle-end/30174
2438         * varasm.c (notice_global_symbol): Treat global objects as weak when
2439         flag_shlib is true.
2440
2441 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2442
2443         * emit-rtl.c (dconstpi): Delete.
2444         (dconstsqrt2): New.
2445         (init_emit_once): Delete dconstpi and init dconstsqrt2.
2446         * real.h (dconstpi): Delete.
2447         (dconstsqrt2): New.
2448         * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
2449         (fold_builtin_hypot): Likewise.
2450
2451 2007-02-03  Tom Tromey  <tromey@redhat.com>
2452
2453         PR driver/30246
2454         * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
2455         -gcoff3, -gxcoff3, -gvms3 implies -dD.
2456
2457 2007-02-03  Kazu Hirata  <kazu@codesourcery.com>
2458
2459         * c-decl.c, config/avr/avr.c, config/avr/avr.h,
2460         config/m68k/m68k.c, config/m68k/netbsd-elf.h,
2461         config/mn10300/mn10300.c, config/pdp11/pdp11.h,
2462         config/rs6000/cell.md, config/rs6000/darwin.h,
2463         config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
2464         config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
2465         jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
2466         tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
2467         typos.  Follow spelling conventions.
2468         * doc/invoke.texi: Follow spelling conventions.
2469
2470 2007-02-03  Roger Sayle  <roger@eyesopen.com>
2471
2472         * simplify-rtx.c (simplify_relational_operation_1): Implement some
2473         canonicalization transformations that attempt to simplify integer
2474         constant comparisons to become comparisons against zero.
2475
2476 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2477
2478         * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
2479         fabs(x)*sqrt(2).
2480         * fold-const.c (fold_binary): Fix comment typos.  Fold complex
2481         (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).
2482
2483 2007-02-02  Mike Stump  <mrs@apple.com>
2484
2485         * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
2486         * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
2487         (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
2488         generate a branch island.
2489
2490 2007-02-02  Bob Wilson  <bob.wilson@acm.org>
2491
2492         * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
2493         (xtensa_legitimate_address_p): New.
2494         (xtensa_legitimize_address): New.
2495         (xtensa_output_addr_const_extra): New.
2496         * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
2497         (BASE_REG_P): New.
2498         (REG_OK_FOR_BASE_P): Use BASE_REG_P.
2499         (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
2500         (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
2501         (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
2502         * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
2503         (xtensa_legitimize_address): New.
2504         (xtensa_output_addr_const_extra): New.
2505
2506 2007-02-02  Steve Ellcey  <sje@cup.hp.com>
2507
2508         * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
2509
2510 2007-02-02  Ian Lance Taylor  <iant@google.com>
2511
2512         * expmed.c (expand_divmod): Add comment.
2513
2514 2007-02-02  Kazu Hirata  <kazu@codesourcery.com>
2515
2516         * emit-rtl.c (renumber_insns): Remove.
2517         * flags.h: Remove the extern for flag_renumber_insns.
2518         * rtl.h: Remove the prototype for renumber_insns.
2519         * toplev.c (flag_renumber_insns): Remove.
2520
2521 2007-02-02  Hui-May Chang  <hm.chang@apple.com>
2522
2523         Revert for x86 darwin:
2524         2005-06-19  Uros Bizjak  <uros@kss-loka.si>
2525
2526         * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
2527         code before the following patch under TARGET_MACHO.
2528         (ix86_function_value_regno_p): Likewise.
2529
2530 2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2531
2532         * fold-const.c (negate_expr_p, fold_negate_expr): Handle
2533         COMPLEX_EXPR.
2534
2535 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2536
2537         PR target/29682
2538         * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
2539         general or fp registers.  Add comments.
2540         * config/ia64/ia64.md (reg_pred_prefix): Add comment.
2541
2542 2007-02-02  Paolo Bonzini  <bonzini@gnu.org>
2543
2544         * pointer-set.c (insert_aux): Only return insertion slot.
2545         (pointer_set_insert): Adjust.
2546         (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
2547         pointer_map_destroy, pointer_map_insert, pointer_map_contains,
2548         pointer_map_traverse): New.
2549         * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
2550         pointer_map_create,  pointer_map_destroy, pointer_map_insert,
2551         pointer_map_contains, pointer_map_traverse): Declare.
2552
2553 2007-02-02  Jakub Jelinek  <jakub@redhat.com>
2554
2555         PR middle-end/30473
2556         * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
2557         sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).
2558
2559 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2560
2561         * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
2562
2563         (struct _dep): New type.
2564         (dep_t): New typedef.
2565         (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
2566         (DEP_STATUS): New access macro.  The macro with the same name was
2567         renamed to DEP_LINK_STATUS.
2568         (dep_init): Declare function
2569
2570         (struct _dep_link): New type.
2571         (dep_link_t): New typedef.
2572         (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
2573         (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
2574         (DEP_LINK_STATUS): New macro.
2575         (debug_dep_links): New debug function.
2576
2577         (struct _deps_list): New type.
2578         (deps_list_t): New typedef.
2579         (DEPS_LIST_FIRST): New access macro.
2580         (FOR_EACH_DEP_LINK): New cycle macro.
2581         (create_deps_list, free_deps_list, delete_deps_list): Declare
2582         functions.
2583         (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
2584         (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
2585         (copy_deps_list_change_con): Ditto.
2586
2587         (move_dep_link): Declare function.
2588
2589         (struct _dep_node): New type.
2590         (dep_node_t): New typedef.
2591         (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
2592
2593         (struct haifa_insn_data.back_deps): New field to hold backward
2594         dependencies of the insn.
2595         (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
2596         to deps_list_t.
2597         (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
2598         Change its type to deps_list_t.
2599         (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
2600         (INSN_DEPEND): Rename to INSN_FORW_DEPS.
2601         (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
2602
2603         (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
2604
2605         (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.
2606
2607         (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
2608         all callers.
2609         (dep_cost): Declare.
2610
2611         * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
2612         (ds_to_dk, dk_to_ds): New functions.
2613
2614         (init_dep_1): New static function.
2615         (init_dep): New function.
2616         (copy_dep): New static function.
2617
2618         (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
2619         functions.
2620         (detach_dep_link): New static function.
2621         (move_dep_link): New function.
2622
2623         (dep_links_consistent_p, dump_dep_links): New static functions.
2624         (debug_dep_links): New debugging function.
2625
2626         (deps_obstack, dl_obstack, dn_obstack): New static variables.
2627
2628         (alloc_deps_list, init_deps_list): New static functions.
2629         (create_deps_list): New function.
2630         (clear_deps_list): New static function.
2631         (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
2632         (deps_list_consistent_p, dump_deps_list): New static functions.
2633         (debug_deps_list): New function.
2634         (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
2635         functions.
2636         (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
2637
2638         (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
2639         use new scheduler dependencies lists.
2640         (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
2641         (sched_analyze): Ditto.  Initialize dependencies lists.
2642         (add_forw_dep, compute_forward_dependences): Update to use new
2643         scheduler dependencies lists.
2644
2645         (init_dependency_caches): Init deps_obstack.
2646         (free_dependency_caches): Free deps_obstack.
2647
2648         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
2649         new scheduler dependencies lists.
2650         (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
2651         (add_back_forw_dep, delete_back_forw_dep): Ditto.
2652
2653         * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
2654         Update to use new scheduler dependencies lists.
2655         (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
2656         (debug_dependencies): Ditto.
2657         (schedule_region): Update comments.
2658
2659         * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
2660         scheduler dependencies lists.
2661         (schedule_ebb): Update comments.
2662
2663         * rtl.def (DEPS_LIST): Remove.
2664
2665         * lists.c (unused_deps_list): Remove.
2666         (free_list): Update assertions.
2667
2668         (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
2669         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2670
2671         * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
2672         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2673
2674         * haifa-sched.c (comments): Update.
2675         (insn_cost1): Remove.  Inline the code into insn_cost ().
2676         (insn_cost): Update to use new scheduler dependencies lists.  Move
2677         processing of the dependency cost to dep_cost ().
2678         (dep_cost): New function.  Use it instead of insn_cost () when
2679         evaluating cost of the dependency.  Use compatible interface to
2680         interact with the target.
2681         (priority): Update to use new scheduler dependencies lists.
2682         (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
2683         with greater number of insns that depend on the insn.
2684         (schedule_insn): Update to use new scheduler dependencies lists.  Add
2685         code to free backward dependencies lists.  Inline and optimize code
2686         from resolve_dep () - see PR28071.
2687         (ok_for_early_queue_removal): Update to use new scheduler dependencies
2688         lists.  Update call to targetm.sched.is_costly_dependence hook.
2689
2690         (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
2691         scheduler dependencies lists.
2692
2693         (resolve_dep): Remove.  Move the logic to schedule_insn ().
2694         (init_h_i_d): Initialize dependencies lists.
2695
2696         (process_insn_depend_be_in_spec): Rename to
2697         process_insn_forw_deps_be_in_spec.  Update to use new scheduler
2698         dependencies lists.
2699         (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
2700         Update to use new scheduler dependencies lists.
2701         (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
2702
2703         * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
2704         new scheduler dependencies lists.
2705         (build_intra_loop_deps): Ditto.
2706
2707         * target.h (struct _dep): Declare to use in
2708         gcc_target.sched.is_costly_dependence.
2709         (struct gcc_target.sched.adjust_cost): Fix typo.
2710         (struct gcc_target.sched.is_costly_dependence): Change signature to use
2711         single dep_t parameter instead of an equivalent triad.
2712         (struct gcc_target.sched.adjust_cost_2): Remove.
2713
2714         * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
2715
2716         * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
2717
2718         * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
2719         documentation.
2720         (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
2721
2722         * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
2723         (REG_DEP_TRUE): Document.
2724
2725         * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
2726         Change signature to correspond to the targetm.sched.adjust_cost hook.
2727         Update use in TARGET_SCHED_ADJUST_COST_2.
2728         (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
2729         (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
2730         new scheduler dependencies lists.
2731         (ia64_gen_check): Ditto.
2732
2733         * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
2734         dependencies lists.
2735
2736         * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
2737         signature to correspond to the targetm.sched.is_costly_dependence hook.
2738         (is_costly_group): Update to use new scheduler dependencies lists.
2739
2740         * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
2741         instead of INSN_COST () macro.
2742
2743 2007-02-01  Ian Lance Taylor  <iant@google.com>
2744
2745         * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
2746
2747 2007-02-01  Guy Martin  <gmsoft@gentoo.org>
2748
2749         * pa.md (tp_load): Correct mfctl instruction syntax.
2750
2751 2007-02-01  Geoffrey Keating  <geoffk@apple.com>
2752
2753         * config/rs6000/rs6000.c (rs6000_stack_info): Correct
2754         altivec_padding_size calculation on AIX.  Improve comment, add
2755         assert to verify that it's right.
2756
2757         * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
2758         64-bit.
2759
2760 2007-2-01  Seongbae Park  <seongbae.park@gmail.com>
2761
2762         PR inline-asm/28686
2763         * global.c (global_alloc): Add mising initialization of
2764         ELIMINABLE_REGSET.
2765
2766 2007-02-01  Roger Sayle  <roger@eyesopen.com>
2767
2768         * alias.c (init_alias_analysis): Correct whitespace.
2769         * bb-reorder.c (fix_edges_for_rarely_executed_code,
2770         partition_hot_cold_basic_blocks): Likewise.
2771         * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
2772         expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
2773         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
2774         fold_builtin_snprintf_chk, fold_builtin_printf,
2775         fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
2776         do_mpfr_arg3, do_mpfr_sincos): Likewise.
2777         * cfgcleanup.c (cleanup_cfg): Likewise.
2778         * cfgexpand.c (tree_expand_cfg): Likewise.
2779         * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
2780         * function.c (get_next_funcdef_no): Likewise.
2781         * gengtype.c (main): Likewise.
2782         * genmodes.c (main): Likewise.
2783         * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
2784         * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
2785         * ifcvt.c (noce_emit_move_insn): Likewise.
2786         * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
2787         Likewise.
2788         * stor-layout.c (get_best_mode): Likewise.
2789         * tree-ssa-loop-niter.c (get_val_for): Likewise.
2790         * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
2791         scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
2792         perform_var_substitution, solve_graph): Likewise.
2793         * tree-vrp.c (vrp_finalize): Likewise.
2794
2795 2007-02-01  Ian Lance Taylor  <iant@google.com>
2796
2797         * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
2798         high part of a paradoxical subreg, return a constant zero.
2799
2800 2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>
2801
2802         * toplev.c (lang_dependent_init): Call init_set_costs.
2803         * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
2804
2805 2007-02-01  Richard Guenther  <rguenther@suse.de>
2806
2807         PR middle-end/30656
2808         * fold-const.c (fold_negate_expr): Allow negating a
2809         constant if overflow does not change.
2810
2811 2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2812
2813         * doc/c-tree.texi (Expression trees): Improve markup.
2814         * doc/tm.texi (Register Classes, Addressing Modes)
2815         (Floating Point): Fix spacing after abbreviations.  Fix some
2816         typos.
2817
2818 2007-02-01  Ben Elliston  <bje@au.ibm.com>
2819
2820         * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
2821         * doc/contrib.texi: Likewise.
2822         * doc/install.texi: Likewise.
2823
2824 2007-01-31  Richard Henderson  <rth@redhat.com>
2825             Ian Lance Taylor  <iant@google.com>
2826
2827         * lower-subreg.c: New file.
2828         * rtl.def (CONCATN): Define.
2829         * passes.c (init_optimization_passes): Add pass_lower_subreg and
2830         pass_lower_subreg2.
2831         * emit-rtl.c (update_reg_offset): New static function, broken out
2832         of gen_rtx_REG_offset.
2833         (gen_rtx_REG_offset): Call update_reg_offset.
2834         (gen_reg_rtx_offset): New function.
2835         * regclass.c: Revert patch of 2006-03-05, restoring
2836         reg_scan_update.
2837         (clear_reg_info_regno): New function.
2838         * dwarf2out.c (concatn_loc_descriptor): New static function.
2839         (loc_descriptor): Handle CONCATN.
2840         * common.opt (fsplit_wide_types): New option.
2841         * opts.c (decode_options): Set flag_split_wide_types when
2842         optimizing.
2843         * timevar.def (TV_LOWER_SUBREG): Define.
2844         * rtl.h (gen_reg_rtx_offset): Declare.
2845         (reg_scan_update): Declare.
2846         * regs.h (clear_reg_info_regno): Declare.
2847         * tree-pass.h (pass_lower_subreg): Declare.
2848         (pass_lower_subreg2): Declare.
2849         * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
2850         (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
2851         -fsplit-wide-types.
2852         * doc/rtl.texi (Regs and Memory): Document concat and concatn.
2853         * Makefile.in (OBJS-common): Add lower-subreg.o.
2854         (lower-subreg.o): New target.
2855
2856 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2857
2858         * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
2859
2860 2007-01-31  Anatoly Sokolov <aesok@post.ru>
2861
2862         PR target/19087
2863         * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
2864
2865 2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2866
2867         PR middle-end/29335
2868         * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.
2869
2870 2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>
2871
2872         * cfgloop.h: Include vec-prim.h.
2873         (enum li_flags): Remove LI_ONLY_OLD.
2874         (loop_iterator): Changed.
2875         (fel_next, fel_init): Iterate over loop tree.
2876         (FOR_EACH_LOOP_BREAK): New macro.
2877         * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
2878         FOR_EACH_LOOP.
2879         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
2880         * modulo-sched.c (sms_schedule): Ditto.
2881         * tree-vectorizer.c (vectorize_loops): Ditto.
2882         * doc/loop.texi: Update information on loop numbering and behavior of
2883         FOR_EACH_LOOP wrto new loops.
2884         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2885         add_to_evolution_1): Test nestedness of loops instead of comparing
2886         their numbers.
2887         * tree-chrec.c (chrec_fold_plus_poly_poly,
2888         chrec_fold_multiply_poly_poly, chrec_evaluate,
2889         hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
2890         reset_evolution_in_loop): Ditto.
2891         * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.
2892
2893 2007-01-31  Dirk Mueller  <dmueller@suse.de>
2894
2895         * c-common.c (warn_about_parentheses): Separate warning about
2896         un-parenthized sequence of comparison operators from the one
2897         which is supposed to warn about x <= y <= z.
2898
2899 2007-01-31  Uros Bizjak  <ubizjak@gmail.com>
2900
2901         * optabs.h (enum optab_index): Add new OTI_isinf.
2902         (isinf_optab): Define corresponding macro.
2903         * optabs.c (init_optabs): Initialize isinf_optab.
2904         * genopinit.c (optabs): Implement isinf_optab using isinf?f2
2905         patterns.
2906         * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
2907         (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
2908         using isinf_optab.
2909         (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
2910         expand_builtin_interclass_mathfn.
2911         * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
2912         * config/i386/i386.md (UNSPEC_FXAM): New constant.
2913         (fxam<mode>2_i387): New insn pattern.
2914         (isinf<mode>2) New expander to implement isinf, isinff and isinfl
2915         built-in functions as x87 inline asm.
2916
2917 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2918
2919         * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.
2920
2921 2007-01-30  Eric Christopher  <echristo@apple.com>
2922
2923         * config.gcc: Add geode.
2924
2925 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2926
2927         * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
2928         ipa-inline.c, tree-profile.c, tree-ssa-live.c,
2929         tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
2930         value-prof.c: Fix comment typos.
2931
2932 2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2933
2934         PR c++/24745
2935         * doc/invoke.texi (Wpointer-arith): Document warning.
2936
2937 2007-01-30  Janis Johnson  <janis187@us.ibm.com>
2938
2939         * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
2940         the list of discrepancies from the draft TR.
2941
2942 2007-01-30  Dirk Mueller  <dmueller@suse.de>
2943
2944         PR c++/30601
2945         * doc/invoke.texi (-Wreturn-type): Update description to
2946         match new behavior.
2947
2948 2007-01-30  Richard Sandiford  <richard@codesourcery.com>
2949
2950         * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
2951
2952 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
2953
2954         * builtins.c (expand_builtin_int_interclass_roundingfn): New function
2955         to handle optabs that operate on floating point input argument and
2956         output to integer output.
2957         (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
2958         (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
2959         (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
2960         expand_builtin_interclass_mathfn ().
2961         * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
2962         (ilogbsi2): Remove.
2963         (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
2964         ilogbl built-in functions as x87 intrinsics.
2965
2966 2007-01-30  Richard Guenther  <rguenther@suse.de>
2967
2968         PR middle-end/27657
2969         * dwarf2out.c (reference_to_unused): Query varpool if the
2970         variable was output.
2971
2972 2007-01-30  Richard Guenther  <rguenther@suse.de>
2973
2974         PR middle-end/30313
2975         * passes.c (execute_one_pass): Reset in_gimple_form to not
2976         confuse non-unit-at-a-time mode.
2977
2978 2007-01-29  Roger Sayle  <roger@eyesopen.com>
2979             Richard Guenther  <rguenther@suse.de>
2980
2981         * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
2982         avoid undefined behaviour on overflow.  Use force_fit_type_double
2983         to construct the constant with the specified TREE_OVERFLOW.
2984
2985 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
2986
2987         * config/dfp-bit.c: Add parameterized support for fp exceptions.
2988         * config/dfp-bit.h: Ditto.
2989
2990 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2991
2992         * c-decl.c (pop_scope): Replace warnings with call to
2993         warn_for_unused_label.
2994         * c-common.h (warn_for_unused_label): Declare.
2995         * c-common.c (warn_for_unused_label): Define.
2996
2997 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2998
2999         * tree-optimize.c (update_inlined_to_pointers): Delete unused
3000         function.
3001
3002 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3003
3004         * Makefile.in (USER_H): Remove decfloat.h.
3005         * ginclude/decfloat.h: Delete, moving contents to ...
3006         * ginclude/float.h: Add support for decimal floating point,
3007         guarded by __STDC_WANT_DEC_FP__.
3008
3009 2007-01-29  Mike Stump  <mrs@apple.com>
3010
3011         * doc/gccint.texi (Top): Rename Loop Representation to Loop
3012         Analysis and Representation to resolve case insensitive conflict.
3013         * doc/loop.texi (Loop Analysis and Representation): Likewise.
3014
3015 2007-01-28  Daniel Berlin  <dberlin@dberlin.org>
3016
3017         * tree.h (struct tree_memory_tag): Add aliases member.
3018         (MTAG_ALIASES): New macro.
3019         * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
3020         (add_may_alias): Remove pointer-set. Update for may_aliases being
3021         a bitmap.
3022         (mark_aliases_call_clobbered): Update for may_aliases being a
3023         bitmap.
3024         (compute_tag_properties): Ditto.
3025         (create_partition_for): Ditto.
3026         (compute_memory_partitions): Ditto.
3027         (dump_may_aliases_for): Ditto.
3028         (is_aliased_with): Ditto.
3029         (add_may_alias_for_new_tag): Ditto.
3030         (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
3031         (compute_is_aliased): New function.
3032         (compute_may_aliases): Call compute_is_aliased).
3033         (init_alias_info): Initialize alias_bitmap_obstack.
3034         (union_alias_set_into): New function.
3035         (compute_flow_sensitive_aliasing): Use union_aliases_into.
3036         (have_common_aliases_p): Rewrite to take two bitmaps and use
3037         intersection.
3038         (compute_flow_insensitive_aliasing): Stop using pointer-sets.
3039         Update for bitmaps.
3040         (finalize_ref_all_pointers): Update for add_may_alias changes.
3041         (new_type_alias): Ditto.
3042         * tree-flow-inline.h (may_aliases): Return a bitmap.
3043         * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
3044         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
3045         may_aliases being a bitmap.
3046         * tree-flow.h (struct var_ann_d): Remove may_aliases member.
3047         may_aliases now returns a bitmap.
3048         * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
3049         being a bitmap.
3050         * tree-ssa-operands.c (add_virtual_operand): Update for
3051         may_aliases being a bitmap.
3052
3053 2007-01-29  Daniel Berlin  <dberlin@dberlin.org>
3054
3055         PR tree-optimization/30630
3056         * tree-ssa-structalias.c (do_complex_constraint): Mark correct
3057         variable as changed.
3058
3059 2007-01-29  Simon Martin  <simartin@users.sourceforge.net>
3060
3061         PR c++/28266
3062         * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
3063         expanded only once even if an error occurs.
3064
3065 2007-01-29  Ben Elliston  <bje@au.ibm.com>
3066
3067         * gcov-io.h (__gcov_indirect_call_profiler): Declare.
3068         (__gcov_average_profiler): Likewise.
3069         (__gcov_ior_profiler): Likewise.
3070         (__gcov_merge_ior): Likewise.
3071
3072 2007-01-28  Jan Hubicka  <jh@suse.cz>
3073
3074         * builtins.c (expand_builtin_memset): Fix typo in my last patch.
3075         * value-prof.c (stringop_block_profile): Likewise.
3076
3077 2007-01-28  Jan Hubicka  <jh@suse.cz>
3078
3079         * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
3080         variant handling histograms; add wrapper.
3081         (clear_storage_via_libcall): Export.
3082         (emit_block_move_hints): Break out from ...; add histograms.
3083         (emit_block_move): ... this one.
3084         (clear_storage_hints): Break out from ...; add histograms.
3085         (clear_storage): ... this one.
3086         (set_storage_via_memset): Handle histogram.
3087         * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
3088         (clear_storage_hints, clear_storage_via_libcall): Declare.
3089         (set_storage_via_setmem): Update prototype.
3090         * doc/md.texi (movmem, setmem): Document new arguments.
3091
3092         * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
3093         new histograms.
3094         (stringop_block_profile): New global function.
3095         (tree_stringops_values_to_profile): Profile block size and alignment.
3096         * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
3097         HIST_TYPE_IOR.
3098         (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
3099         (stringop_block_profile): Declare.
3100         * builtins.c: Include value-prof.h.
3101         (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
3102         * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
3103         (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
3104         (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
3105         * profile.c (instrument_values): Add new counters.
3106         * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
3107         calls.
3108         * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
3109         (tree_init_edge_profiler): Build new profilers.
3110         (tree_gen_average_profiler, tree_gen_ior_profiler): New.
3111         (pass_tree_profile): Add dump.
3112         (tree_profile_hooks): Update.
3113         * Makefile.in (LIBGCOV): Add new constants.
3114         * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
3115         __gcov_ior_profiler): New.
3116         * i386.md (movmem/setmem expanders): Add new optional arguments.
3117
3118 2007-01-28  David Edelsohn  <edelsohn@gnu.org>
3119
3120         * doc/md.texi (Standard Pattern Names): Document blockage pattern.
3121
3122 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3123
3124         * tree-ssa-loop-unswitch.c: Include tree-inline.h.
3125         (tree_unswitch_single_loop): Pass eni_size_weights to
3126         tree_num_loop_insns.
3127         * tree-ssa-loop-manip.c: Include tree-inline.h.
3128         (can_unroll_loop_p): Pass eni_size_weights to
3129         tree_num_loop_insns.
3130         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
3131         Pass eni_size_weights to estimate_num_insns.
3132         * tree.h (init_inline_once): Export.
3133         * toplev.c (backend_init): Call init_inline_once.
3134         * cgraphunit.c (cgraph_process_new_functions,
3135         cgraph_analyze_function): Pass eni_inlining_weights to
3136         estimate_num_insns.
3137         * ipa-inline.c (compute_inline_parameters): Ditto.
3138         * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
3139         to estimate_num_insns.
3140         (try_unroll_loop_completely): Pass eni_size_weights to
3141         tree_num_loop_insns.
3142         * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
3143         ot estimate_num_insns.
3144         * tree-ssa-loop-prefetch.c: Include tree-inline.h.
3145         (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
3146         * tree-inline.c (eni_inlining_weights, eni_size_weights,
3147         eni_time_weights): New variables.
3148         (init_inline_once): Initialize them.
3149         (struct eni_data): Mew.
3150         (estimate_num_insns_1, estimate_num_insns): Use weights.
3151         * tree-inline.h (struct eni_weights_d): New.
3152         (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
3153         (estimate_num_insns): Declaration changed.
3154         * cfgloop.h (tree_num_loop_insns): Declaration changed.
3155         * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
3156         tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.
3157
3158 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3159
3160         * tree-data-ref.c (conflict_fn): Assert that the number of affine
3161         relations in the conflict function is valid.
3162
3163 2007-01-27  Ian Lance Taylor  <iant@google.com>
3164
3165         * common.opt: Add fstrict-overflow.
3166         * opts.c (decode_options): Set flag_strict_overflow if -O2.
3167         * flags.h (TYPE_OVERFLOW_WRAPS): Define.
3168         (TYPE_OVERFLOW_UNDEFINED): Define.
3169         (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
3170         Replace all uses.
3171         * tree.h (TYPE_TRAP_SIGNED): Don't define.
3172         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
3173         (fold_negate_expr): Likewise.
3174         (make_range): Likewise.
3175         (extract_muldiv_1): Likewise.
3176         (maybe_canonicalize_comparison): Likewise.
3177         (fold_comparison): Likewise.
3178         (fold_binary): Likewise.
3179         (tree_expr_nonnegative_p): Likewise.
3180         (tree_expr_nonzero_p): Likewise.
3181         * tree-vrp.c (compare_values): Likewise.
3182         (extract_range_from_binary_expr): Likewise.
3183         (extract_range_from_unary_expr): Likewise.
3184         * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
3185         Likewise.
3186         (nowrap_type_p): Likewise.
3187         * tree-scalar-evolution.c (simple_iv): Likewise.
3188         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
3189         (build_range_check): Likewise.
3190         (extract_muldiv_1): Likewise.
3191         (fold_comparison): Likewise.
3192         * tree-vrp.c (vrp_int_const_binop): Likewise.
3193         (extract_range_from_unary_expr): Likewise.
3194         * convert.c (convert_to_integer): Likewise.
3195         * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
3196         (fold_comparison): Likewise.
3197         (fold_binary): Likewise.
3198         * optabs.c (optab_for_tree_code): Likewise.
3199         * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
3200         * simplify-rtx.c (simplify_const_relational_operation): Check
3201         flag_strict_overflow and flag_trapv.
3202         (simplify_const_relational_operation): Likewise.
3203         * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
3204         (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
3205         -fstrict-overflow.
3206
3207 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3208
3209         * tree.c (tree_fold_gcd): Delete.
3210         * tree.h (tree_fold_gcd): Remove prototype.
3211         * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
3212         test whether one constant integer is a multiple of another.  Instead
3213         call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
3214         * fold-const.c (multiple_of_p):  We've determined both TOP and
3215         BOTTOM are integer constants so we can call int_const_binop directly
3216         instead of the more generic const_binop.
3217
3218 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3219
3220         * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
3221         1*X check that the constant hasn't overflowed, to preserve the
3222         TREE_OVERFLOW bit.
3223         (round_up): Provide an efficient implementation when rouding-up an
3224         INTEGER_CST to a power-of-two.
3225
3226 2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3227
3228         * doc/sourcebuild.texi: Add comma for clarity.
3229         * doc/extend.texi: Fix some typos.
3230         * doc/passes.texi: Likewise.
3231         * doc/cppinternals.texi: Likewise.
3232         * doc/c-tree.texi: Likewise.
3233         * doc/tree-ssa.texi: Likewise.
3234         * doc/install.texi: Likewise.
3235
3236 2007-01-27  Jan Hubicka  <jh@suse.cz>
3237
3238         * tree-sra.c (sra_walk_function): Don't rely on aliases being build.
3239         (pass_sra): Do not require alias information.
3240         * passes.c (init_optimization_passes): Add SRA
3241
3242 2007-01-27  Steven Bosscher  <steven@gcc.gnu.org>
3243
3244         * tracer.c (rest_of_handle_tracer): We already cleaned
3245         up the CFG in tracer() so don't do it here again.
3246         * cfgcleanup.c (rest_of_handle_jump2): Don't repeat
3247         cleanup_cfg here, either.  And don't call renumber_insns.
3248
3249         * cfgrtl.c (rtl_verify_flow_info_1): Don't verify that BB_END
3250         and BB_HEAD are in the insn stream here.  Instead make sure
3251         that BB_INSN is valid on all insns.  Also, do check here that
3252         there are no pending branch predictions...
3253         (rtl_verify_flow_info): ...instead of doing it here.  Checks
3254         for BB_END and BB_HEAD moved from rtl_verify_flow_info_1 to
3255         here.
3256
3257 2007-01-26  Roger Sayle  <roger@eyesopen.com>
3258
3259         * config/i386/i386.c (ix86_swap_binary_operands_p): New helper
3260         function to simplify/factorize operand order canonicalization.
3261         (ix86_fixup_binary_operands): Reorganize using the above function.
3262         (ix86_binary_operator_ok): Likewise.
3263
3264 2007-01-27  Jakub Jelinek  <jakub@redhat.com>
3265
3266         * genattrtab.c (struct attr_value_list, insn_code_values): Move to
3267         file scope from optimize_attrs.
3268         (simplify_test_exp): If insn_code_values is not NULL, use it to speed
3269         up search.
3270         (optimize_attrs): Clear insn_code_values after freeing it.
3271
3272 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3273
3274         * tree-ssa-address.c (create_mem_ref): Remove ", bsi" from
3275         a parts.base assignment.
3276
3277 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3278
3279         * tree-data-ref.c (dump_subscript): Use dump_conflict_function.
3280         (compute_subscript_distance, initialize_data_dependence_relation,
3281         finalize_ddr_dependent, analyze_ziv_subscript,
3282         analyze_siv_subscript_cst_affine,
3283         compute_overlap_steps_for_affine_univar,
3284         compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
3285         analyze_siv_subscript, analyze_miv_subscript,
3286         analyze_overlapping_iterations, subscript_dependence_tester_1,
3287         compute_self_dependence, free_dependence_relation): Work
3288         with affine_fn instead of chrecs.
3289         (dump_affine_function, dump_conflict_function, affine_function_equal_p,
3290         common_affine_function, affine_function_base,
3291         affine_function_constant_p, affine_fn_op, affine_fn_plus,
3292         affine_fn_minus, affine_fn_free, conflict_fn_not_known,
3293         conflict_fn_no_dependence, free_conflict_function, free_subscripts,
3294         conflict_fn, affine_fn_cst, affine_fn_univar): New functions.
3295         (all_chrecs_equal_p): Removed.
3296         * tree-data-ref.h (affine_fn, conflict_function): New types.
3297         (struct subscript): Change type of conflicting_iterations_in_a
3298         and conflicting_iterations_in_b.
3299
3300 2007-01-26  Steve Ellcey  <sje@cup.hp.com>
3301
3302         PR other/30182
3303         * config/pa/pa.h (TARGET_HPUX_11): New.
3304         * config/pa/pa-hpux11.h (TARGET_HPUX_11): New.
3305         * config/pa/pa.c (pa_init_builtins): Use TARGET_HPUX_11.
3306
3307 2007-01-26  Daniel Berlin  <dberlin@dberlin.org>
3308         Richard Guenther  <rguenther@suse.de>
3309
3310         * tree-ssa-structalias.c (solve_graph): Handle case
3311         we merged the variable to another.
3312
3313 2007-01-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3314
3315         * builtins.c (fold_builtin_1): Treat ccos and ccosh as 'even'
3316         functions.
3317
3318         * fold-const.c (negate_mathfn_p): Treat casin, casinh, catan,
3319         catanh, cproj, csin, csinh, ctan and ctanh as 'odd' functions.
3320
3321 2007-01-25  DJ Delorie  <dj@redhat.com>
3322
3323         * config/m32c/m32c.c (m32c_cannot_change_mode_class): We don't
3324         allow changes to modes which don't fit in those registers.
3325
3326         * reload1.c (choose_reload_regs): Check for invalid subregs before
3327         computing their locations, not after.
3328
3329 2007-01-25  Geoffrey Keating  <geoffk@apple.com>
3330
3331         PR 25127
3332         * config/rs6000/rs6000.c (first_altivec_reg_to_save): On Darwin,
3333         save Altivec registers in an eh_return function.
3334         (compute_vrsave_mask): Likewise.
3335         (rs6000_stack_info): Correct AIX/Darwin stack alignment computation
3336         for saving Altivec registers.
3337         (rs6000_emit_prologue): Don't allocate stack twice in
3338         eh_return function.  Correct expected value of altivec_save_offset
3339         when using save_world.  Describe save of R0 to stack when using
3340         save_world.  Describe stack pointer adjustment when using
3341         save_world.  Remove duplicated eh_return parameter register saving.
3342         Update sp_offset variable after save_world.
3343         * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA): Remove
3344         darwin-world.asm.
3345         (LIB2FUNCS_EXTRA): Add darwin-world.asm.
3346         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): -m64
3347         implies Altivec.
3348
3349 2007-01-25  Steve Ellcey  <sje@cup.hp.com>
3350
3351         * config.gcc (ia64*-*-hpux*): Make posix threads the default.
3352
3353 2007-01-25  Steve Ellcey  <sje@cup.hp.com>
3354
3355         PR other/30182
3356         * config/pa/pa.c (pa_init_builtins): Set asm names for finite routines.
3357         * config/ia64/ia64.c (ia64_init_builtins):  Ditto.
3358
3359 2007-01-25  Richard Guenther  <rguenther@suse.de>
3360
3361         * doc/invoke.texi (-Wcoverage-mismatch): Document.
3362         * common.opt (-Wcoverage-mismatch): New warning option.
3363         * coverage.c (get_coverage_counts): Ignore coverage mismatch
3364         if -Wcoverage-mismatch is given.
3365
3366 2007-01-25  Razya Ladelsky  <razya@il.ibm.com>
3367
3368         * ipa-cp.c (ipcp_insert_stage, ipcp_driver): Support for SSA.
3369         (ipcp_driver): Change to static definition.
3370         Add dumping of the ifunctions.
3371         (constant_val_insert): Remove unused parameter. Support for SSA.
3372         (ipcp_propagate_const): Support for SSA.
3373         (ipcp_profile_bb_print): Print only analyzed nodes.
3374         (ipcp_replace_map_create): Remove support for Fortran constant
3375         for now.
3376         * ipa-prop.c (ipa_method_modify_stmt,
3377         ipa_callsite_compute_param): Support for SSA.
3378         * ipa-prop.h (ipcp_driver): Remove declaration.
3379         (IS_VALID_TREE_MAP_INDEX): Add define.
3380
3381 2007-01-24  Geoffrey Keating  <geoffk@apple.com>
3382
3383         * unwind-dw2.c (execute_stack_op): Handle DW_OP_swap.
3384
3385 2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3386
3387         PR middle-end/30447
3388         * builtins.c (fold_builtin_cabs): Use MPFR to evaluate a
3389         constant argument to cabs and do it without checking for
3390         -funsafe-math-optimizations.
3391
3392 2007-01-24  Douglas Gregor  <dgregor@osl.iu.edu>
3393
3394         * c-common.h (RID_FIRST_CXX0X): New.
3395         (RID_LAST_CXX0X): New.
3396         * c-opts.c (c_common_handle_option): -Wc++0x-compat is triggered
3397         by -Wall.
3398         * c.opt (Wc++0x-compat): New.
3399         * doc/invoke.texi (-Wc++0x-compat): Document.
3400
3401 2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3402
3403         * builtins.c (fold_builtin_carg): New.
3404         (fold_builtin_1): Use it.
3405
3406 2007-01-24  Jan Hubicka  <jh@suse.cz>
3407
3408         * ipa-inline.c (cgraph_decide_inlining): Initialize initial_insns.
3409
3410         * ipa-inline.c (initial_insns, max_insns): Delete.
3411         (compute_max_insns): New function.
3412         (cgraph_decide_inlining_of_small_function): Use it; take minimal amount
3413         of insns as base for code growth.
3414        &nbs