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PR middle-end/30761
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>
2
3         PR middle-end/30761
4         * reload1.c (eliminate_regs_in_insn): In the single_set special
5         case, attempt to re-recognize the insn before falling back to
6         having reload fix it up.
7
8 2007-02-20  Eric Christopher  <echristo@gmail.com>
9
10         * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
11         Rewrite accordingly.
12         (frv_read_iacc_argument): Ditto.
13         (frv_expand_set_builtin): Take a call instead of arglist, update for
14         above changes.
15         (frv_expand_unop_builtin): Ditto.
16         (frv_expand_binop_builtin): Ditto.
17         (frv_expand_cut_builtin): Ditto.
18         (frv_expand_binopimm_builtin): Ditto.
19         (frv_expand_voidbinop_builtin): Ditto.
20         (frv_expand_int_void2arg): Ditto.
21         (frv_expand_prefetches): Ditto.
22         (frv_expand_voidtriop_builtin): Ditto.
23         (frv_expand_voidaccop_builtin): Ditto.
24         (frv_expand_load_builtin): Ditto.
25         (frv_expand_store_builtin): Ditto.
26         (frv_expand_mdpackh_builtin): Ditto.
27         (frv_expand_mclracc_builtin): Ditto.
28         (frv_expand_mrdacc_builtin): Ditto.
29         (frv_expand_mwtacc_builtin): Ditto.
30         (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
31         calls for above.
32
33 2007-02-20  Janis Johnson  <janis187@us.ibm.com>
34
35         * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
36         * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
37         cmpb instruction.
38         (HAVE_GAS_DFP): Check for assembler support of decimal floating
39         point instructions.
40         * configure: Regenerate.
41         * config.in: Regenerate.
42         * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
43         * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
44         masks to power6 and power6x and to POWERPC_MASKS.
45         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
46         _ARCH_PWR6.
47         * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
48         * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
49         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
50         Access PROTOTYPE as variable, not mask.
51
52 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
53
54         * rtl.h (remove_reg_equal_equiv_notes): New prototype.
55         * rtlanal.c (remove_reg_equal_equiv_notes): New function.
56         * combine.c (adjust_for_new_dest): Use it.
57         * postreload.c (reload_combine): Likewise.
58
59 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
60
61         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
62         notes on an insn with multiple sets, even if single_set returns
63         non-NULL for that insn.
64
65 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
66
67         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
68         scalbn and scalbln.
69
70 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
71
72         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
73         if user didn't pass it.
74         * config/i386/darwin.h (CC1_SPEC): Likewise.
75         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
76         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
77         -mmacosx-version-min.
78
79 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
80             Uros Bizjak  <ubizjak@gmail.com>
81
82         * optabs.h (enum optab_index): Add new OTI_scalb.
83         (scalb_optab): Define corresponding macro.
84         * optabs.c (init_optabs): Initialize scalb_optab.
85         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
86         patterns.
87         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
88         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
89         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
90         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
91         flag_unsafe_math_optimizations is set.
92
93         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
94         to implement scalbf, scalb and scalbl built-ins as inline x87
95         intrinsics.
96
97 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
98             DJ Delorie <dj@redhat.com>
99
100         PR other/30824
101         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
102         (diagnostic_report_diagnostic): ... here, and turn them into real
103         errors. If warnings are inhibited, no need to do anything.
104
105 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
106
107         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
108         better code generation.
109
110 2007-02-20  Ben Elliston  <bje@au.ibm.com>
111
112         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
113
114 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
115
116         * config/alpha/alpha.c, config/alpha/alpha.md,
117         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
118         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
119         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
120         config/arm/lib1funcs.asm: Follow spelling conventions.
121
122         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
123         config/fr30/fr30.md, config/i386/i386.h,
124         config/iq2000/iq2000.h, config/iq2000/predicates.md,
125         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
126         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
127         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
128         config/rs6000/altivec.md, config/rs6000/rs6000.c,
129         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
130         config/sparc/sparc.c, config/sparc/sparc.h,
131         config/sparc/sparc.md, config/spu/constraints.md,
132         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
133         conventions.
134
135 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
136
137         PR target/29943
138         * varasm.c (use_blocks_for_decl_p): Return false for decls with
139         alias attribute.
140
141 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
142
143         * doc/invoke.texi (-ftree-lrs): Remove.
144
145 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
146
147         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
148         NULL.
149
150 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
151
152         * config/ia64/ia64.c (ia64_expand_builtin): Use the
153         new CALL_EXPR_FN macro for retrieving the function
154         declaration of the input expression.
155
156 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
157
158         * c.opt (Waddress): New.
159         * common.opt (Walways-true): Delete.
160         (Wstring-literal-comparison): Delete.
161         * doc/invoke.texi (Warning Options): Delete -Walways-true and
162         -Wstring-literal-comparison. Add -Waddress.
163         (Waddress): New.
164         (Walways-true): Delete.
165         (Wstring-literal-comparison): Delete.
166         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
167         consistently instead of -Walways-true in example.
168         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
169         * c-typeck.c (parser_build_binary_op): Replace
170         -Wstring-literal-comparison and -Walways-true with -Waddress.
171         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
172         with -Waddress.
173
174 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
175
176         * tree-cfg.c (dump_function_to_file): Be prepared for functions
177         without DECL_STRUCT_FUNCTION initialized.
178
179 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
180
181         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
182         due to calls to functions taking pointers as parameters.
183
184 2007-02-19  Richard Henderson  <rth@redhat.com>
185
186         PR debug/29558
187         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
188         in memory.
189
190 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
191
192         * config/s390/s390.c (s390_call_saved_register_used,
193         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
194         accessed to the new scheme.
195
196 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
197
198         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
199         (cris_print_index, cris_print_operand, cris_print_operand_address)
200         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
201         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
202         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
203         GET_CODE () == xxx.
204         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
205         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
206         GO_IF_LEGITIMATE_ADDRESS): Ditto.
207         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
208         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
209         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
210         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
211         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
212         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
213         (uminsi3, call, call_value): Ditto.
214         (define_split: indir_to_reg_split, unnamed): Ditto.
215
216 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
217
218         PR tree-optimization/30975
219         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
220         wrong assert.
221
222 2007-02-18  Eric Christopher  <echristo@gmail.com>
223
224         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
225         Remove use of arglist.
226         (mips_expand_builtin): Remove use of arglist, pass in expr.
227         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
228         (mips_expand_builtin_movtf): Ditto.
229         (mips_expand_builtin_compare): Ditto.
230
231 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
232
233         * tree-sra.c (sra_build_assignment): Replace assertion
234         checking with a comment explaining why it can't be done.
235
236 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
237
238         PR middle-end/30833
239         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
240         during CALL_EXPR representation conversion.
241         * tree-ssa-propagate.c (set_rhs): Likewise.
242
243 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
244
245         * tree-sra.c (sra_build_assignment): Disable assertion checking
246         for now.
247
248 2007-02-18  Roger Sayle  <roger@eyesopen.com>
249
250         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
251         instead of calling build2 with a GIMPLE_MODIFY_STMT.
252         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
253         Likewise.
254         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
255         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
256         gimplify_init_ctor_eval_range, gimple_push_cleanup,
257         gimplify_omp_for, gimplify_omp_atomic_pipeline,
258         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
259         force_gimple_operand): Likewise.
260         * ipa-cp.c (constant_val_insert): Likewise.
261         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
262         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
263         perfect_nestify): Likewise.
264         * langhooks.c (lhd_omp_assignment): Likewise.
265         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
266         lower_copyprivate_clauses, lower_send_clauses,
267         lower_send_shared_vars, expand_parallel_call,
268         expand_omp_for_generic, expand_omp_for_static_nochunk,
269         expand_omp_for_static_chunk, expand_omp_sections,
270         lower_omp_single_copy, lower_omp_for_lastprivate,
271         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
272         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
273         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
274         Likewise.
275
276 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
277
278         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
279         config/sh/sh.md: Follow spelling conventions.
280
281         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
282         config/frv/predicates.md: Follow spelling conventions.
283
284         * config/m68k/linux-unwind.h: Fix a comment typo.
285         * target.h: Follow spelling conventions.
286
287 2007-02-18  Roger Sayle  <roger@eyesopen.com>
288
289         PR rtl-optimization/28173
290         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
291         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
292         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
293         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
294         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
295
296 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
297
298         * builtins.c (fold_builtin_load_exponent): New.
299         (fold_builtin_2): Use it.
300
301 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
302
303         PR rtl-optimization/30773
304         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
305         if we fail to attach a REG_EQUIV note.
306
307 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
308             Roger Sayle  <roger@eyesopen.com>
309
310         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
311
312 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
313
314         * calls.c (initialize_argument_information): Pass original EXP
315         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
316         code to split complex arguments here, as part of initializing the
317         ARGS array.
318         (expand_call): Remove code that builds a list of arguments and
319         inserts implicit arguments into it.  Instead, just count how many
320         implicit arguments there will be so we can determine the size of
321         the ARGS array, and let initialize_argument_information do the work.
322         (split_complex_values): Delete unused function.
323
324 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
325
326         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
327
328 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
329
330         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
331         for arg pointer based indexed addressing.
332
333 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
334
335         * config/ia64/ia64.h, config/ia64/ia64.md,
336         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
337         spelling conventions.
338
339 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
340
341         * config/m68k/m68k.c (split_di): New.
342         * config/m68k/m68k-protos.h: Declare split_di.
343         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
344           Improve predicate handling and split constant shifts.
345
346 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
347
348         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
349         parameter for register bitfield operations, general predicates
350         cleanup
351
352 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
353
354         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
355         * config/m68k/linux-unwind.h: New file.
356
357 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
358
359         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
360         config/i386/athlon.md, config/ia64/ia64.md,
361         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
362         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
363         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
364         tree-ssa-loop-niter.c, tree-vect-analyze.c,
365         tree-vect-transform.c: Fix comment typos.
366
367 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
368
369         * sched-deps.c (find_insn_list): Remove.
370         * sched-int.h: Remove the prototype for find_insn_list.
371
372 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
373
374         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
375         to linker.
376         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
377         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
378         darwin_rs6000_override_options.
379         (C_COMMON_OVERRIDE_OPTIONS): Expect
380         darwin_macosx_version_min to be non-NULL always.
381         (TARGET_C99_FUNCTIONS): Likewise.
382         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
383         (DARWIN_MINVERSION_SPEC): New.
384         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
385         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
386         to cc1*.
387         (DARWIN_MINVERSION_SPEC): New.
388         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
389         value.
390         * config/darwin-c.c (darwin_cpp_builtins): Expect
391         darwin_macosx_version_min to be non-NULL always.
392
393         * config/rs6000/rs6000.c: Clean up trailing whitespace.
394
395 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
396
397         * config/i386/i386.h (x86_use_xchgb): New.
398         (TARGET_USE_XCHGB): New macro.
399         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
400         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
401         Split after reload into bswaphi for shifts of 8.
402         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
403         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
404         or when optimizing for size.
405
406 2007-02-16  Richard Guenther  <rguenther@suse.de>
407             Christian Bruel  <christian.bruel@st.com>
408
409         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
410         DECLs but prefer SSA_NAMEs over DECLs.
411
412 2007-02-16  Richard Guenther  <rguenther@suse.de>
413
414         * tree-flow-inline.h (single_imm_use_p): Remove.
415         (zero_imm_uses_p): Likewise.
416         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
417         instead of single_imm_use_p.
418         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
419         zero_imm_uses_p.
420
421 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
422
423         PR other/27843
424         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
425         nested double- and backquotes.
426
427 2007-02-15  Roger Sayle  <roger@eyesopen.com>
428
429         PR middle-end/30391
430         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
431         should be unreachable.
432         (build2_stat): Allow construction of MODIFY_EXPR at any time.
433         For the time being redirect GIMPLE_MODIFY_STMT to the new
434         (renamed) build_gimple_modify_stmt_stat.
435         (build2_gimple_stat): Rename to...
436         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
437         Always build a GIMPLE_MODIFY_STMT node.
438         * tree.h (build2_gimple, build2_gimple_stat): Delete.
439         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
440         declarations.
441
442         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
443         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
444         * tree-complex.c (set_component_ssa_name, expand_complex_move,
445         expand_complex_div_wide): Likewise.
446         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
447         * tree-ssa-loop-im.c (schedule_sm): Likewise.
448         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
449         * tree-ssa-loop-manip.c (create_iv): Likewise.
450         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
451         abs_replacement): Likewise.
452         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
453         realify_fake_stores): Likewise.
454
455         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
456         node rather than a GIMPLE_MODIFY_STMT node.
457         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
458         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
459         Likewise.
460         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
461         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
462         GIMPLE_MODIFY_STMT.
463
464 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
465
466         PR middle-end/30433
467         * fold-const.c (fold_comparison): Add back the
468         folding of constant complex comparisions.
469
470 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
471
472         PR middle-end/30729
473         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
474         effects unknown to this function, return early.
475
476 2007-02-15  Ian Lance Taylor  <iant@google.com>
477
478         * lower-subreg.c (move_eh_region_note): New static function.
479         (resolve_simple_move): Call it.
480         (decompose_multiword_subregs): Track blocks for which we resolve a
481         simple move which is also a control flow insn.  Pass them to
482         find_many_sub_basic_blocks.
483         (pass_lower_subreg): Add TODO_verify_flow.
484         (pass_lower_subreg2): Likewise.
485
486 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
487             Brooks Moses  <brooks.moses@codesourcery.com>
488             Lee Millward  <lee.millward@codesourcery.com>
489
490         * tree.h (enum tree_code_class): Add tcc_vl_exp.
491         (VL_EXP_CLASS_P): New.
492         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
493         TREE_CODE_LENGTH.
494         (TREE_OPERAND_CHECK_CODE): Likewise.
495         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
496         (TREE_RTL_OPERAND_CHECK): Likewise.
497         (tree_operand_check_failed): Make second parameter the whole tree
498         instead of its code.  Fixed callers.
499         (VL_EXP_CHECK): New.
500         (TREE_OPERAND_LENGTH): New.
501         (VL_EXP_OPERAND_LENGTH): New.
502         (CALL_EXPR_FN): New.
503         (CALL_EXPR_STATIC_CHAIN): New.
504         (CALL_EXPR_ARGS): New.
505         (CALL_EXPR_ARG): New.
506         (call_expr_nargs): New.
507         (CALL_EXPR_ARGP): New.
508         (build_nt_call_list): Declare.
509         (build_vl_exp_stat): Declare.
510         (build_vl_exp): New.
511         (build_call_list): Declare.
512         (build_call_nary): Declare.
513         (build_call_valist): Declare.
514         (build_call_array): Declare.
515         (call_expr_arg): Declare.
516         (call_expr_argp): Declare.
517         (call_expr_arglist): Declare.
518         (fold_build_call_list): Declare.
519         (fold_build_call_list_initializer): Declare.
520         (fold_call_expr): Declare to replace fold_builtin.
521         (fold_builtin_fputs): Update to agree with modified definition.
522         (fold_builtin_strcpy): Likewise.
523         (fold_builtin_strncpy): Likewise.
524         (fold_builtin_memory_chk): Likewise.
525         (fold_builtin_stxcpy_chk): Likewise.
526         (fold_builtin_strncpy_chk): Likewise.
527         (fold_builtin_next_arg): Likewise.
528         (fold_build_call_expr): Declare.
529         (fold_builtin_call_list): Declare.
530         (fold_builtin_call_valist): Declare.
531         (build_call_expr): Declare.
532         (validate_arglist): Update to agree with modified definition.
533         (tree_operand_length): New.
534         (call_expr_arg_iterator): New.
535         (init_call_expr_arg_iterator): New.
536         (next_call_expr_arg): New.
537         (first_call_expr_arg): New.
538         (more_call_expr_args_p): New.
539         (FOR_EACH_CALL_EXPR_ARG): New.
540
541         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
542         and tcc_gimple_stmt.
543         (tree_code_size): Update documentation.  Use sizeof (tree) rather
544         than sizeof (char *).
545         (tree_size): Likewise.  Add case for tcc_vl_exp.
546         (tree_node_structure): Add case for tcc_vl_exp.
547         (contains_placeholder_p): Likewise.
548         (substitute_in_expr): Likewise.
549         (substitute_placeholder_in_expr): Likewise.
550         (stabilize_reference_1): Likewise.
551         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
552         to diagnose breakage of this interface for constructing CALL_EXPRs.
553         (build_nt): Add similar assertion here.
554         (build_nt_call_list): New.
555         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
556         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
557         TREE_CODE_LENGTH.
558         (get_callee_fndecl): Use new CALL_EXPR accessors.
559         (tree_operand_check_failed): Change parameters to pass entire node
560         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
561         (process_call_operands): New.
562         (build_vl_exp_stat): New.
563         (build_call_list): New.
564         (build_call_nary): New.
565         (build_call_valist): New.
566         (build_call_array): New.
567         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
568         (call_expr_arglist): New.
569
570         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
571         tcc_vl_exp instead of a fixed-size tcc_expression.
572
573         * doc/c-tree.texi (CALL_EXPR): Document new representation and
574         accessors for CALL_EXPRs.
575         (AGGR_INIT_EXPR): Likewise.
576
577 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
578             Brooks Moses  <brooks.moses@codesourcery.com>
579             Lee Millward  <lee.millward@codesourcery.com>
580
581         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
582         (expand_builtin_nonlocal_goto): Change parameter to be entire
583         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
584         (expand_builtin_prefetch): Likewise.
585         (expand_builtin_classify_type): Likewise.
586         (mathfn_built_in): Return NULL_TREE instead of 0.
587         (expand_errno_check): Use new CALL_EXPR accessors.
588         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
589         Return NULL_RTX instead of 0.
590         (expand_builtin_mathfn_2): Likewise.
591         (expand_builtin_mathfn_3): Likewise.
592         (expand_builtin_interclass_mathfn): Likewise.
593         (expand_builtin_sincos): Likewise.
594         (expand_builtin_cexpi): Likewise.
595         (expand_builtin_int_roundingfn): Likewise.
596         (expand_builtin_int_roundingfn_2): Likewise.
597         (expand_builtin_pow): Likewise.
598         (expand_builtin_powi): Likewise.
599         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
600         of arglist, fixing callers appropriately.  Use new CALL_EXPR
601         accessors and constructors.  Return NULL_RTX instead of 0.
602         (expand_builtin_strstr): Likewise.
603         (expand_builtin_strchr): Likewise.
604         (expand_builtin_strrchr): Likewise.
605         (expand_builtin_strpbrk): Likewise.
606         (expand_builtin_memcpy): Likewise.
607         (expand_builtin_mempcpy): Likewise.
608         (expand_builtin_mempcpy_args): New.
609         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
610         (expand_builtin_memmove_args): New.
611         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
612         (expand_movstr): Likewise.
613         (expand_builtin_strcpy): Likewise.
614         (expand_builtin_strcpy_args): New.
615         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
616         (expand_builtin_strncpy): Likewise.
617         (expand_builtin_memset): Likewise.
618         (expand_builtin_memset_args): New.
619         (expand_builtin_bzero): Similarly to expand_builtin_memset.
620         (expand_builtin_memcmp): Likewise.
621         (expand_builtin_strcmp): Likewise.
622         (expand_builtin_strncmp): Likewise.
623         (expand_builtin_strcat): Likewise.
624         (expand_builtin_strncat): Likewise.
625         (expand_builtin_strspn): Likewise.
626         (expand_builtin_strcspn): Likewise.
627         (expand_builtin_args_info): Likewise.
628         (expand_builtin_va_start): Likewise.
629         (gimplify_va_arg_expr): Likewise.
630         (expand_builtin_va_end): Likewise.
631         (expand_builtin_va_copy): Likewise.
632         (expand_builtin_frame_address): Likewise.
633         (expand_builtin_alloca): Likewise.
634         (expand_builtin_bswap): Likewise.
635         (expand_builtin_unop): Likewise.
636         (expand_builtin_fputs): Likewise.
637         (expand_builtin_expect): Likewise.
638         (expand_builtin_fabs): Likewise.
639         (expand_builtin_copysign): Likewise.
640         (expand_builtin_printf): Likewise.
641         (expand_builtin_fprintf): Likewise.
642         (expand_builtin_sprintf): Likewise.
643         (expand_builtin_init_trampoline): Likewise.
644         (expand_builtin_signbit): Likewise.
645         (expand_builtin_fork_or_exec): Likewise.
646         (expand_builtin_sync_operation): Likewise.
647         (expand_builtin_compare_and_swap): Likewise.
648         (expand_builtin_lock_test_and_set): Likewise.
649         (expand_builtin_lock_release): Likewise.
650         (expand_builtin): Likewise.
651         (builtin_mathfn_code): Likewise.
652
653         (fold_builtin_constant_p): Pass call arguments individually instead
654         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
655         accessors and constructors.  Return NULL_TREE instead of 0.
656         (fold_builtin_expect): Likewise.
657         (fold_builtin_classify_type): Likewise.
658         (fold_builtin_strlen): Likewise.
659         (fold_builtin_nan): Likewise.
660         (integer_valued_real_p): Likewise.
661         (fold_trunc_transparent_mathfn): Likewise.
662         (fold_fixed_mathfn): Likewise.
663         (fold_builtin_cabs): Likewise.
664         (fold_builtin_sqrt): Likewise.
665         (fold_builtin_cbrt): Likewise.
666         (fold_builtin_cos): Likewise.
667         (fold_builtin_cosh): Likewise.
668         (fold_builtin_tan): Likewise.
669         (fold_builtin_sincos): Likewise.
670         (fold_builtin_cexp): Likewise.
671         (fold_builtin_trunc): Likewise.
672         (fold_builtin_floor): Likewise.
673         (fold_builtin_ceil): Likewise.
674         (fold_builtin_round): Likewise.
675         (fold_builtin_int_roundingfn): Likewise.
676         (fold_builtin_bitop): Likewise.
677         (fold_builtin_bswap): Likewise.
678         (fold_builtin_logarithm): Likewise.
679         (fold_builtin_hypot): Likewise.
680         (fold_builtin_pow): Likewise.
681         (fold_builtin_powi): Likewise.
682         (fold_builtin_exponent): Likewise.
683         (fold_builtin_memset): Likewise.
684         (fold_builtin_bzero): Likewise.
685         (fold_builtin_memory_op): Likewise.
686         (fold_builtin_bcopy): Deleted; call site changed to invoke
687         fold_builtin_memory_op directly.
688         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
689         (fold_builtin_strncpy): Likewise.
690         (fold_builtin_memcmp): Likewise.
691         (fold_builtin_strcmp): Likewise.
692         (fold_builtin_strncmp): Likewise.
693         (fold_builtin_signbit): Likewise.
694         (fold_builtin_copysign): Likewise.
695         (fold_builtin_isascii): Likewise.
696         (fold_builtin_toascii): Likewise.
697         (fold_builtin_isdigit): Likewise.
698         (fold_builtin_fabs): Likewise.
699         (fold_builtin_abs): Likewise.
700         (fold_builtin_fmin_fmax): Likewise.
701         (fold_builtin_carg): Likewise.
702         (fold_builtin_classify): Likewise.
703         (fold_builtin_unordered_cmp): Likewise.
704
705         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
706         New functions split out from fold_builtin_1.
707         (fold_builtin_n): New.
708         (fold_builtin_varargs): New.
709         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
710         instead.
711         (fold_call_expr): New.
712         (build_function_call_expr): Rewrite to use new helper function.
713         (fold_builtin_call_list): New.
714         (build_call_expr): New.
715         (fold_builtin_call_valist): New.
716         (rewrite_call_expr): New.
717         (validate_arg): New.
718         (validate_arglist): Change parameter to be entire CALL_EXPR instead
719         of an arglist.  Change return type to bool.  Use new CALL_EXPR
720         accessors.
721
722         (fold_builtin_strstr):  Pass call arguments individually instead
723         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
724         accessors and constructors.  Return NULL_TREE instead of 0.
725         (fold_builtin_strchr): Likewise.
726         (fold_builtin_strrchr): Likewise.
727         (fold_builtin_strpbrk): Likewise.
728         (fold_builtin_strcat): Likewise.
729         (fold_builtin_strncat): Likewise.
730         (fold_builtin_strspn): Likewise.
731         (fold_builtin_strcspn): Likewise.
732         (fold_builtin_fputs): Likewise.
733         (fold_builtin_next_arg): Likewise.
734         (fold_builtin_sprintf): Likewise.
735
736         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
737         NULL_RTX instead of 0.
738         (expand_builtin_memory_chk): Likewise.
739         (maybe_emit_chk_warning): Likewise.
740         (maybe_emit_sprintf_chk_warning): Likewise.
741
742         (fold_builtin_object_size): Pass call arguments individually instead
743         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
744         accessors and constructors.  Return NULL_TREE instead of 0.
745         (fold_builtin_memory_chk): Likewise.
746         (fold_builtin_stxcpy_chk): Likewise.
747         (fold_builtin_strncpy_chk): Likewise.
748         (fold_builtin_strcat_chk): Likewise.
749         (fold_builtin_strcat_chk): Likewise.
750         (fold_builtin_strncat_chk): Likewise.
751         (fold_builtin_sprintf_chk): Likewise.
752         (fold_builtin_snprintf_chk): Likewise.
753         (fold_builtin_printf): Likewise.
754         (fold_builtin_vprintf): Likewise.
755
756         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
757         constructors.
758         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
759         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
760         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
761         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
762         (fold_unary): Likewise.
763         (fold_binary): Likewise.
764         (fold_ternary): Remove CALL_EXPR case, since they are no longer
765         ternary expressions.
766         (fold): Add logic for tcc_vl_exp.
767         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
768         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
769         (fold_build3_stat): Add assertion to flag broken interface for
770         constructing CALL_EXPRs.
771         (fold_build_call_list): New.
772         (fold_build_call_list_initializer): New.
773         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
774         constructors.
775         (fold_strip_sign_ops): Likewise.
776
777 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
778             Brooks Moses  <brooks.moses@codesourcery.com>
779             Lee Millward  <lee.millward@codesourcery.com>
780
781         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
782         accessors and dump arguments explicitly.
783
784         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
785         TREE_CODE_LENGTH.
786         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
787         explicitly.
788         (print_call_name): Use new CALL_EXPR accessors.
789
790         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
791         CALL_EXPR arguments explicitly instead of as a list.  Use
792         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
793
794         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
795         (vrp_visit_stmt): Likewise.
796
797         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
798         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
799         TREE_CODE_LENGTH.
800         (force_move_till_expr): Likewise.
801
802         * targhooks.c (default_external_stack_protect_fail): Use
803         build_call_expr instead of build_function_call_expr.
804         (default_hidden_stack_protect_fail): Likewise.
805
806         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
807         build the call.
808
809         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
810         and walk arguments explicitly.
811
812         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
813         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
814         (expand_simple_operations): Likewise.
815         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
816
817         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
818         of TREE_CODE_LENGTH.
819         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
820
821         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
822         instead of TREE_CODE_LENGTH.
823
824         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
825         (tree_ic_transform): Likewise.
826         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
827         parameter instead of arglist.  Fix callers.
828         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
829         (tree_stringops_transform): Likewise.
830         (tree_indirect_call_to_profile): Likewise.
831         (tree_stringops_values_to_profile): Likewise.
832
833         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
834         (eliminate_tail_call): Likewise.
835
836         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
837
838         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
839         Use TREE_OPERAND_LENGTH and generalize to handle any number of
840         operands.
841         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
842
843         * omp-low.c (build_omp_barrier): Use build_call_expr.
844         (lower_rec_input_clauses): Likewise.
845         (lower_reduction_clauses): Likewise.
846         (expand_parallel_call): Likewise.
847         (maybe_catch_exception): Likewise.
848         (expand_omp_for_generic): Likewise.
849         (expand_omp_for_static_nochunk): Likewise.
850         (expand_omp_sections): Likewise.
851         (lower_omp_single_simple): Likewise.
852         (lower_omp_single_copy): Likewise.
853         (lower_omp_master): Likewise.
854         (lower_omp_ordered): Likewise.
855         (lower_omp_critical): Likewise.
856
857         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
858         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
859
860         * tree-gimple.c (is_gimple_call_addr): Fix doc.
861         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
862         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
863
864         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
865         and generalize to handle any number of operands.
866         (chrec_contains_undetermined): Likewise.
867         (tree_contains_chrecs): Likewise.
868         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
869
870         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
871
872         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
873         fold_call_expr instead of fold_builtin.
874         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
875         match declarations there.
876         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
877         updates.
878
879         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
880         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
881
882         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
883         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
884
885         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
886         accessors.
887
888         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
889         (execute_cse_sincos): Use new CALL_EXPR accessors.
890
891         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
892
893         * gimple-low.c (lower_function_body): Use build_call_expr.
894         (lower_builtin_setjmp): Likewise.
895
896         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
897         (set_storage_via_libcall): Likewise.
898         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
899         instead of TREE_CODE_LENGTH.
900         (expand_expr_real_1): Use new CALL_EXPR accessors.
901
902         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
903         generalize to handle any number of operands.
904         (TB_parent_eq): Likewise.
905
906         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
907         (strip_builtin_expect): Likewise.
908
909         * function.c (gimplify_parameters): Use build_call_expr.
910
911         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
912         instead of TREE_CODE_LENGTH.
913
914         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
915         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
916
917         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
918         iterators.
919
920         * gimplify.c (build_stack_save_restore): Use build_call_expr.
921         (gimplify_decl_expr): Likewise.
922         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
923         Use new CALL_EXPR iterators.
924         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
925         (gimplify_modify_expr_to_memset): Likewise.
926         (gimplify_variable_sized_compare): Likewise.
927         (gimplify_omp_atomic_fetch_op): Likewise.
928         (gimplify_omp_atomic_pipeline): Likewise.
929         (gimplify_omp_atomic_mutex): Likewise.
930         (gimplify_function_tree): Likewise.
931
932         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
933         (call_expr_flags): Likewise.
934         (expand_call): Likewise.
935
936         * except.c (expand_builtin_eh_return_data_regno): Pass entire
937         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
938         accessors.
939
940         * coverage.c (create_coverage): Use build_call_expr.
941
942         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
943         (temp_call_expr_obstack): New.
944         (pool_copy_list): Delete.
945         (temp_copy_call_expr): New.
946         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
947         CALL_EXPR accessors.  Get rid of special goo for copying argument
948         lists and use temp_copy_call_expr instead.
949         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
950         CALL_EXPR accessors.
951         (create_expression_by_pieces): Likewise.  Use build_call_array
952         to construct the result instead of fold_build3.
953         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
954         dealing with argument lists.
955         (init_pre): Remove references to expression_node_pool and
956         list_node_pool.  Init temp_call_expr_obstack instead.
957         (fini_pre): Remove references to expression_node_pool and
958         list_node_pool.
959
960         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
961         and walk arguments explicitly instead of as a list.
962
963         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
964         (mx_register_decls): Likewise.
965         (mudflap_register_call): Likewise.
966         (mudflap_finish_file): Likewise.
967
968         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
969         (ipa_callsite_compute_param): Likewise.
970
971         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
972         accessors and constructor.
973
974         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
975         accessors and constructor.
976         (convert_tramp_reference): Likewise.
977         (convert_call_expr): Likewise.
978         (finalize_nesting_tree_1): Likewise.
979
980         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
981         accessors.
982
983         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
984
985         * tree-inline.c (initialize_inlined_parameters): Pass entire
986         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
987         accessors.
988         (estimate_num_insns_1): Use new CALL_EXPR accessors.
989         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
990
991         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
992         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
993         (vectorizable_reduction): Likewise.
994         (vectorizable_call): Use new CALL_EXPR iterators.
995         (vectorizable_conversion): Use build_call_expr.
996         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
997         (vect_gen_widened_results_half): Use build_call_expr.
998         (vect_setup_realignment): Likewise.
999         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
1000
1001         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
1002         (pass_through_call): Likewise.
1003         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
1004         fold_builtin.
1005
1006         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
1007         (tree_gen_pow2_profiler): Likewise.
1008         (tree_gen_one_value_profiler): Likewise.
1009         (tree_gen_ic_func_profiler): Likewise.
1010         (tree_gen_average_profiler): Likewise.
1011         (tree_gen_ior_profiler): Likewise.
1012
1013         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
1014         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
1015         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1016
1017         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
1018         of TREE_CODE_LENGTH.
1019
1020         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
1021         of TREE_CODE_LENGTH.
1022
1023         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
1024         constructor.
1025         (convert_to_integer): Likewise.
1026
1027         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
1028         accessors.
1029
1030 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1031             Brooks Moses  <brooks.moses@codesourcery.com>
1032             Lee Millward  <lee.millward@codesourcery.com>
1033
1034         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
1035         accessors.
1036         * config/frv/frv.c (frv_expand_builtin): Likewise.
1037         * config/s390/s390.c (s390_expand_builtin): Likewise.
1038
1039         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
1040         (sparc_expand_builtin): Use new CALL_EXPR accessors.
1041
1042         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
1043         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
1044         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
1045         (ix86_expand_store_builtin): Likewise.
1046         (ix86_expand_unop_builtin): Likewise.
1047         (ix86_expand_unop1_builtin): Likewise.
1048         (ix86_expand_sse_compare): Likewise.
1049         (ix86_expand_sse_comi): Likewise.
1050         (ix86_expand_vec_init_builtin): Likewise.
1051         (ix86_expand_vec_ext_builtin): Likewise.
1052         (ix86_expand_vec_set_builtin): Likewise.
1053         (ix86_expand_builtin): Use new CALL_EXPR accessors.
1054
1055         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
1056         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
1057
1058         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
1059         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1060         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
1061
1062         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
1063         build_call_expr.
1064         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
1065         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
1066         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1067         (altivec_expand_abs_builtin): Likewise.
1068         (rs6000_expand_binop_builtin): Likewise.
1069         (altivec_expand_predicate_builtin): Likewise.
1070         (altivec_expand_lv_builtin): Likewise.
1071         (spe_expand_stv_builtin): Likewise.
1072         (altivec_expand_stv_builtin): Likewise.
1073         (rs6000_expand_ternop_builtin): Likewise.
1074         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
1075         (altivec_expand_st_builtin): Likewise.
1076         (altivec_expand_dst_builtin): Likewise.
1077         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
1078         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1079         (altivec_expand_vec_set_builtin): Likewise.
1080         (altivec_expand_vec_ext_builtin): Likewise.
1081         (altivec_expand_builtin): Use new CALL_EXPR accessors.
1082         (spe_expand_builtin): Likewise.
1083         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
1084         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1085         (spe_expand_evsel_builtin): Likewise.
1086         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
1087         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
1088
1089         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
1090         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1091         (arm_expand_unop_builtin): Likewise.
1092         (arm_expand_builtin): Use new CALL_EXPR accessors.
1093
1094         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
1095         accessors.
1096
1097         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
1098         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1099         (bfin_expand_unop_builtin): Likewise.
1100         (bfin_expand_builtin): Use new CALL_EXPR accessors.
1101
1102 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1103             Brooks Moses  <brooks.moses@codesourcery.com>
1104             Lee Millward  <lee.millward@codesourcery.com>
1105
1106         * c-semantics.c (build_stmt): Add internal diagnostic check.
1107
1108         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
1109         accessors.  Print arguments explicitly instead of as a list.
1110
1111         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
1112
1113         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
1114         (c_finish_omp_flish): Likewise.
1115
1116         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
1117         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
1118         instead of TREE_CODE_LENGTH.
1119         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
1120         (c_warn_unused_result): Likewise.
1121
1122 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1123
1124         PR c/26494
1125         * doc/invoke.texi (Warning Options): Remove
1126         -Werror-implicit-function-declaration.
1127         (Wimplicit-function-declaration): Update description.
1128         * opts.c (common_handle_option): Move handling of -Werror=* to...
1129         (enable_warning_as_error): ...here.
1130         * opts.h (enable_warning_as_error): Declare.
1131         * c-decl.c (implicit_decl_warning): Unless
1132         -Wno-implicit-function-declaration is given, emit a pedwarn if
1133         -std=c99 or emit a warning if -Wimplicit-function-declaration.
1134         * c.opt (Wimplicit-function-declaration): Replace
1135         mesg_implicit_function_declaration with
1136         warn_implicit_function_declaration.
1137         * c-opts.c (c_common_handle_option):
1138         -Werror-implicit-function-declaration is exactly equal as
1139         -Werror=implicit-function-declaration.
1140         (set_Wimplicit): Replace mesg_implicit_function_declaration with
1141         warn_implicit_function_declaration.
1142         (c_common_post_options): -Wimplict-function-declaration is enabled
1143         by default by -std=c99, otherwise is disabled by default.
1144         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
1145
1146 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1147
1148         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
1149         DECL on the rhs to a DECL on the lhs for debug info purposes if the
1150         former is ignored but not the latter.
1151
1152 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1153
1154         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
1155         is made and the reference doesn't use the alias set of its type,
1156         do not create the temporary using that type.
1157
1158 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
1159
1160         * jump.c: Remove prototypes for delete_computation and
1161         delete_prior_computation.
1162
1163 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1164
1165         * jump.c (get_label_after): Delete.
1166         (get_label_before, delete_computation, delete_jump,
1167         delete_prior_computation, follow_jumps): Move...
1168         * reorg.c (delete_computation, delete_prior_computation): ... here...
1169         (get_label_before, delete_jump): ... making these static ...
1170         (follow_jumps): ... and simplifying this since it only runs after
1171         reload.
1172         * rtl.h (get_label_after, get_label_before, delete_jump,
1173         follow_jumps): Delete prototypes.
1174
1175 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1176
1177         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1178
1179 2007-02-15  Nick Clifton  <nickc@redhat.com>
1180
1181         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
1182         order to prevent it from being munged by the target.
1183
1184 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
1185
1186         * config/i386/i386.md: Remove misleading comment.
1187
1188 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1189
1190         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
1191         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
1192         invalid patterns.
1193
1194 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1195
1196         * tree-sra.c (instantiate_missing_elements): Canonicalize
1197         bit-field types.
1198         (sra_build_assignment): New.
1199         (generate_copy_inout, generate_element_copy,
1200         generate_element_zero, generate_one_element_init): Use it.
1201
1202 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1203
1204         * tree-sra.c (instantiate_missing_elements): Canonicalize
1205         bit-field types.
1206         (sra_build_assignment): New.
1207         (generate_copy_inout, generate_element_copy,
1208         generate_element_zero, generate_one_element_init): Use it.
1209
1210 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1211
1212         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
1213         limbo die nodes.
1214
1215 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
1216
1217         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
1218         types as aggregates not scalars.
1219         * function.c (assign_stack_temp_for_type): Likewise.
1220
1221 2007-02-14  Roger Sayle  <roger@eyesopen.com>
1222             Zdenek Dvorak  <dvorakz@suse.cz>
1223
1224         * tree-dump.c (dump_switch_p_1): Require exact match of the option
1225         name.
1226
1227 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
1228
1229         * passes.c (next_pass_1): Clear the next field of the copied
1230         pass structure.
1231
1232 2007-02-14  Richard Henderson  <rth@redhat.com>
1233
1234         * tree-sra.c (early_sra): New.
1235         (decl_can_be_decomposed_p): Deny va_list if early_sra.
1236         (tree_sra_early, pass_sra_early): New.
1237         * tree-pass.h (pass_sra_early): Declare.
1238         * passes.c (init_optimization_passes): Use it.
1239
1240 2007-02-14  Richard Guenther  <rguenther@suse.de>
1241
1242         * flags.h (issue_strict_overflow_warning): Convert to a macro.
1243
1244 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
1245
1246          PR tree-optimization/30771
1247         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
1248         also phi nodes.
1249         (vect_analyze_operations): Induction phis can now be marked as
1250         used_in_loop.
1251         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
1252         Update documentation accordingly.
1253
1254 2007-02-14  Nick Clifton  <nickc@redhat.com>
1255
1256         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
1257         most 3 arguments are supported.
1258         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
1259
1260 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
1261
1262         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1263         Ensure dst->current is valid.
1264
1265 2007-02-13  Paul Brook  <paul@codesourcery.com>
1266
1267         * config.gcc: Add arm*-*-uclinux-*eabi.
1268         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
1269         (SUBTARGET_EXTRA_LINK_SPEC): Define.
1270         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
1271         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
1272         (LINK_SPEC): Define.
1273         (LIB_SPEC): Define.
1274         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
1275         register.
1276         * config/arm/uclinux-eabi.h: New file.
1277         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
1278         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
1279         based targets.
1280
1281 2007-02-13  Ian Lance Taylor  <iant@google.com>
1282
1283         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
1284         * flags.h (warn_strict_overflow): Declare.
1285         (enum warn_strict_overflow_code): Define.
1286         (issue_strict_overflow_warning): New static inline function.
1287         * opts.c (warn_strict_overflow): New variable.
1288         (common_handle_option): Handle OPT_Wstrict_overflow and
1289         OPT_Wstrict_overflow_.
1290         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
1291         OPT_Wall.
1292         * fold-const.c: Include intl.h.
1293         (fold_deferring_overflow_warnings): New static variable.
1294         (fold_deferred_overflow_warning): New static variable.
1295         (fold_deferred_overflow_code): New static variable.
1296         (fold_defer_overflow_warnings): New function.
1297         (fold_undefer_overflow_warnings): New function.
1298         (fold_undefer_and_ignore_overflow_warnings): New function.
1299         (fold_deferring_overflow_warnings_p): New function.
1300         (fold_overflow_warning): New static function.
1301         (make_range): Add strict_overflow_p parameter.  Change all
1302         callers.
1303         (extract_muldiv, extract_muldiv_1): Likewise.
1304         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
1305         tree_expr_nonnegative_p.
1306         (fold_negate_expr): Call fold_overflow_warning.
1307         (fold_range_test): Likewise.
1308         (fold_comparison): Likewise.
1309         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
1310         instead of tree_expr_nonnegative_p.
1311         (tree_expr_nonnegative_warnv_p): Rename from
1312         tree_expr_nonnegative_p, add strict_overflow_p parameter.
1313         (tree_expr_nonnegative_p): New function.
1314         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
1315         strict_overflow_p parameter.
1316         (tree_expr_nonzero_p): New function.
1317         * passes.c (verify_interpass_invariants): New static function.
1318         (execute_one_pass): Call it.
1319         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
1320         warnings.
1321         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
1322         (estimate_numbers_of_iterations): Likewise.
1323         (scev_probably_wraps_p): Likewise.
1324         * tree-ssa-ccp.c: Include "toplev.h".
1325         (evaluate_stmt): Defer fold overflow warnings until we know we are
1326         going to optimize.
1327         (struct fold_stmt_r_data): Add stmt field.
1328         (fold_stmt_r): Defer fold overflow warnings until we know we
1329         optimized.
1330         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
1331         (fold_stmt_inplace): Likewise.
1332         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
1333         (cleanup_control_expr_graph): Defer fold overflow warnings until
1334         we know we are going to optimize.
1335         * tree-cfg.c (fold_cond_expr_cond): Likewise.
1336         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
1337         Likewise.
1338         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
1339         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
1340         * tree-ssa-loop-manip.c (create_iv): Likewise.
1341         * c-typeck.c (build_conditional_expr): Likewise.
1342         (build_binary_op): Likewise.
1343         * tree-vrp.c (vrp_expr_computes_nonzero): Call
1344         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
1345         (extract_range_from_unary_expr): Likewise.
1346         * simplify-rtx.c (simplify_const_relational_operation): Warn when
1347         assuming that signed overflow does not occur.
1348         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
1349         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
1350         (fold_defer_overflow_warnings): Declare.
1351         (fold_undefer_overflow_warnings): Declare.
1352         (fold_undefer_and_ignore_overflow_warnings): Declare.
1353         (fold_deferring_overflow_warnings_p): Declare.
1354         (tree_expr_nonzero_warnv_p): Declare.
1355         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
1356         of warning options.
1357         (Warning Options): Document -Wstrict-overflow.
1358         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
1359         (tree-ssa-ccp.o): Likewise.
1360         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
1361         (fold-const.o): Depend on intl.h.
1362
1363 2007-02-13  Ian Lance Taylor  <iant@google.com>
1364
1365         PR middle-end/30751
1366         * lower-subreg.c (resolve_simple_move): Decompose subregs in
1367         addresses.
1368
1369 2007-02-13  Stuart Hastings  <stuart@apple.com>
1370
1371         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
1372
1373 2007-02-13  Richard Henderson  <rth@redhat.com>
1374
1375         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
1376         handled_component_p before looking for the indirect_ref.
1377
1378 2007-02-13  Richard Henderson  <rth@redhat.com>
1379
1380         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
1381         remove flags clobber.
1382         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
1383         (bswaphi_lowpart): New.
1384         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
1385         remove TARGET_BSWAP test.  Delete expander of the same name.
1386
1387         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
1388         (expand_unop): Use them.
1389
1390 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
1391
1392         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
1393         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
1394         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
1395         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
1396         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
1397         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
1398         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
1399         assembler dialect choice from asm templates.
1400
1401 2007-02-12  Richard Henderson  <rth@redhat.com>
1402
1403         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
1404         (fixuns_trunc<SSEMODEF>si2): Use it.
1405         * config/i386/sse.md (vec_setv4sf_0): Export.
1406         * config/i386/i386.c (ix86_build_const_vector): Export.
1407         (ix86_split_convert_uns_si_sse): Rename from
1408         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
1409         * config/i386/i386-protos.h: Update.
1410
1411 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1412
1413         PR c/29521
1414         * c-typeck.c (c_finish_return): Improve warning message.
1415
1416 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1417
1418         * alias.c (find_symbolic_term): Delete unused function.
1419
1420 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
1421
1422         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
1423         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
1424         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
1425
1426 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1427
1428         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
1429         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
1430         the function, temporarily point the debug interface to the null one.
1431
1432 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1433
1434         * dwarf2out.c (round_up_to_align): New static function.
1435         (field_byte_offset): Use it to round the offset.
1436
1437 2007-02-12  Richard Henderson  <rth@redhat.com>
1438
1439         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
1440         (inswl_const): Export.
1441
1442 2007-02-12  Richard Henderson  <rth@redhat.com>
1443
1444         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
1445         result mode of the libcall, convert back to outmode.
1446
1447 2007-02-12  Roger Sayle  <roger@eyesopen.com>
1448
1449         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
1450         (bswapdi2): New define_expand to implement 32-bit implementation.
1451
1452 2007-02-12  Nick Clifton  <nickc@redhat.com>
1453
1454         * doc/invoke.texi (Overall Options): Document --help=.
1455         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
1456         (cc1_options): Pass --help= on to cc1.
1457         (display_help): Add description of --help=.
1458         (process_command): Add code to handle --help=.  Allow translated
1459         --help and --target-help switches to be passed on to compiler
1460         sub-process.
1461         (main): Remove unused if statement.
1462         * opts.c (columns): Remove.
1463         (LEFT_COLUMN): Define.
1464         (wrap_help): Add columns argument.
1465         (print_filtered_help): Change parameters to be an include bitmask,
1466         an exclude bitmask, an any bitmask and the column width.  Move the
1467         code to display the params list here.  Add code to display the
1468         status of options rather than their descriptions if the quiet flag
1469         is not active.
1470         (print_specific_help): Change parameters to be an include bitmask,
1471         an exclude bitmask and an any bitmask.  Move code to look up the
1472         column width here.  Decide upon the title for an options listing.
1473         (common_handle_options): Add code to handle --help=.  Adapt code
1474         for --help and --target-help to use the revised form of the
1475         print_specific_help function.
1476         (print_help): Delete.
1477         (print_param_help): Delete.
1478         (print_switch): Delete.
1479         * opts.h (cl_lang_count): Add prototype.
1480         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
1481         CL_MAX_OPTION_CLASS): New defines.
1482         * optc-gen.awk: Add construction of cl_lang_count.
1483         * c.opt: Add Warning attribute to warning options and Optimization
1484         attribute to optimization options.
1485         * common.opt: Likewise.
1486         Add --help=.
1487         Add -fhelp and -ftarget-help as aliases for the transformed --help
1488         and --target-help options.
1489         * opt-functions.awk: Add code to handle Warning and Optimization
1490         attributes.
1491
1492 2007-02-12  Richard Henderson  <rth@redhat.com>
1493
1494         * config/alpha/constraints.md: New file.
1495         * config/alpha/alpha.c: Include tm-constrs.h.
1496         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
1497         alpha_extra_constraint): Remove.
1498         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
1499         * config/alpha/alpha-protos.h: Update.
1500         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
1501         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
1502         (EXTRA_CONSTRAINT): Remove.
1503         * config/alpha/alpha.md: Include constraints.md.
1504         (adddi splitter): Use satisfies_constraint_*.
1505         * config/alpha/predicates.md (add_operand): Likewise.
1506         (sext_add_operand, addition_operation): Likewise.
1507
1508 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
1509
1510         PR tree-optimization/29145
1511         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
1512         in our handling of restrict qualified pointers.
1513
1514 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1515
1516         PR middle-end/7651
1517         * doc/invoke.texi (Wunused-value): Update description.
1518         (Wextra): Delete item.
1519         * opts.c (set_Wextra): Don't use the value of Wextra to set the
1520         value of Wunused-value.
1521         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
1522         (c_finish_stmt_expr): Don't check extra_warnings.
1523         (emit_side_effect_warnings): The caller is responsible to check
1524         warn_unused_value.
1525
1526 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1527             Matt Thomas  <matt@3am-software.com>
1528
1529         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
1530
1531 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1532
1533         * simplify-rtx.c (simplify_relational_operation_1): Optimize
1534         comparisons of POPCOUNT against zero.
1535         (simplify_const_relational_operation): Likewise.
1536
1537 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1538
1539         * doc/invoke.texi (Wextra): Delete outdated paragraph.
1540
1541 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1542
1543         * dwarf2out.c (root_type): Delete unused function.
1544
1545 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1546
1547         * genattrtab.c (contained_in_p): Delete unused function.
1548         (write_expr_attr_cache): Likewise.
1549
1550 2007-02-11  Jan Hubicka  <jh@suse.cz>
1551
1552         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
1553         previous patch.
1554
1555 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
1556
1557         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
1558         to add the REG_EQ* note.
1559         * see.c (see_merge_one_use_extension): Likewise.
1560         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
1561         turn REG_EQUAL notes into REG_EQUIV notes if the target
1562         register may have more than one set.
1563         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
1564         * gcse.c (try_replace_reg): Likewise.
1565         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
1566         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
1567         more than one REG_EQUIV note.
1568         * reload1.c (gen_reload): Use set_unique_reg_note.
1569
1570 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
1571
1572         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
1573         (ix86_builtin_conversion): New function.
1574
1575 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
1576
1577         PR target/29487
1578         * tree.h (DECL_REPLACEABLE_P): New macro.
1579         * except.c (set_nothrow_function_flags): Likewise.
1580
1581 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
1582             Ira Rosen  <irar@il.ibm.com>
1583             Dorit Nuzman  <dorit@il.ibm.com>
1584
1585         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
1586         * targhooks.c (default_builtin_vectorized_conversion): New.
1587         * targhooks.h (default_builtin_vectorized_function): New declaration.
1588         * target.h (struct vectorize): Add builtin_conversion field.
1589         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
1590         stmt_vec_info_type value.
1591         (vectorizable_conversion): New declaration.
1592         * tree-vect-analyze.c (vect_analyze_operations): Add
1593         vectorizable_conversion call.
1594         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
1595         * tree-vect-transform.c (vectorizable_conversion): New function.
1596         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
1597         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
1598         mode.
1599         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
1600         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
1601         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
1602         or ALTIVEC_BUILTIN_VCFSX.
1603
1604 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1605
1606         PR target/30634
1607         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
1608         CONST_DOUBLE and operand 0 is a hard register.
1609         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
1610         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
1611         is a hard floating-point register.
1612
1613 2007-02-10  Richard Henderson  <rth@redhat.com>
1614             Jakub Jelinek  <jakub@redhat.com>
1615             Alexandre Oliva  <aoliva@redhat.com>
1616
1617         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
1618         * builtin-types.def (BT_WORD): Make unsigned.
1619         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
1620         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
1621         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
1622         * c-decl.c (grokdeclarator): Don't error if !have_tls.
1623         * c-parser.c (c_parser_omp_threadprivate): Likewise.
1624         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
1625         emulated tls.
1626         * expr.c (emutls_var_address): New.
1627         (expand_expr_real_1): Expand emulated tls.
1628         (expand_expr_addr_expr_1): Likewise.
1629         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
1630         * output.h (emutls_finish): Declare.
1631         * toplev.c (compile_file): Call it.
1632         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
1633         address before wrapping in CONST.
1634         * varasm.c (emutls_htab, emutls_object_type): New.
1635         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
1636         (get_emutls_object_name, get_emutls_object_type): New.
1637         (get_emutls_init_templ_addr, emutls_decl): New.
1638         (emutls_common_1, emutls_finish): New.
1639         (assemble_variable): When emulating tls, swap decls; generate
1640         constructor for the emutls objects.
1641         (do_assemble_alias): When emulating tls, swap decl and target name.
1642         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
1643         for emulated tls.
1644         * varpool.c (decide_is_variable_needed): Look at force_output.
1645         Recurse for emulated tls.
1646         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
1647         with decide_is_variable_needed.
1648         * emutls.c: New file.
1649         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
1650         tls_object for real tls.
1651
1652 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1653
1654         PR rtl-optimization/29599
1655         * reload1.c (eliminate_regs_in_insn): Take the destination
1656         mode into account when computing the offset.
1657
1658 2007-02-09  Stuart Hastings  <stuart@apple.com>
1659             Richard Henderson  <rth@redhat.com>
1660
1661         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1662         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1663         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
1664         fixuns_truncdfhi2): New.
1665         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
1666         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
1667         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
1668         (floatunssidf2): Allow nonimmediate source.
1669         * gcc/config/i386/sse.md (movdi_to_sse): New.
1670         (vec_concatv2di): Drop '*'.
1671         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
1672         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1673         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
1674         New.
1675         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
1676         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1677         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
1678         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
1679         (ix86_build_signbit_mask): Fix decl of v, refactor to call
1680         ix86_build_const_vector.
1681         (x86_emit_floatuns): Rewrite.
1682
1683 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1684
1685         * genautomata.c (longest_path_length): Delete unused function.
1686         (struct state): Delete unused longest_path_length.
1687         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
1688         (get_free_state): Delete unused.
1689
1690 2007-02-09  Jan Hubicka  <jh@suse.cz>
1691
1692         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
1693         * doc/invoke.texi (inline-unit-growth): Update default value.
1694
1695         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
1696         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
1697         (rebuild_cgraph_edges): Likewise.
1698         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
1699         (dump_cgraph_node): Dump frequencies.
1700         (cgraph_clone_edge): Add frequency scales.
1701         (cgraph_clone_node): Add freuqnecy.
1702         * cgraph.h (cgraph_edge): Add freuqnecy argument.
1703         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
1704         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
1705         * tree-pass.h (TODO_rebuild_frequencies): New constant.
1706         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
1707         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
1708         (save_inline_function_body): Likewise.
1709         * ipa-inline.c: inluce rtl.h
1710         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
1711         (cgraph_edge_badness): Use frequencies.
1712         (cgraph_decide_recursive_inlining): Update clonning.
1713         (cgraph_decide_inlining_of_small_function): Dump frequency.
1714         * predict.c (estimate_bb_frequencies): Export.
1715         * predict.h (estimate_bb_frequencies): Declare.
1716         * tree-inline.c (copy_bb): Watch overflows.
1717         (expand_call_inline): Update call of cgraph_create_edge.
1718         (optimize_inline_calls): Use TODO flags to update frequnecies.
1719         * passes.h: Include predict.h
1720         (init_optimization_passes): Move profile ahead.
1721         (execute_function_todo): Handle TODO_rebuild_frequencies.
1722
1723 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1724
1725         * config/alpha/alpha.c (emit_insxl): Force the first operand of
1726         the insbl or inswl pattern into a register.
1727
1728 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1729
1730         * config/ia64/ia64.md (bswapdi2): New define_insn.
1731
1732 2007-02-09  Richard Henderson  <rth@redhat.com>
1733
1734         * config/i386/constraints.md (Ym): New constraint.
1735         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
1736         (movdi_1_rex64): Split sse and xmm general register moves from
1737         memory move alternatives.  Use conditional register constraints.
1738         (movsf_1, movdf_integer): Likewise.
1739         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
1740         (movdf_integer_rex64): New.
1741         (pushsf_rex64): Fix output constraints.
1742         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
1743         (sse2_stored): Likewise.
1744         (sse2_storeq_rex64): New.
1745         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
1746         amd and not generic.
1747         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
1748         for optimize_size.  Remove SF/DFmode hack.
1749
1750 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
1751
1752         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
1753         (bit_SSE4a): New.
1754
1755 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
1756             Richard Sandiford  <richard@codesourcery.com>
1757
1758         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
1759         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
1760         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
1761         m68k/t-mlib to tmake_file.
1762         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
1763         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
1764         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
1765         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
1766         variable is not empty, add t-$m68k_arch_family to tmake_file.
1767         Add t-mlibs to tmake_file.
1768         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
1769         * config/m68k/t-cf: New file.
1770         * config/m68k/t-m68k: Likewise.
1771         * config/m68k/t-mlibs: Likewise.
1772         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1773         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1774         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1775         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1776         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
1777         Delete.
1778         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
1779         (INSTALL_LIBGCC): Delete.
1780         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1781         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1782         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1783         (M68K_MLIB_CPU): Define.
1784         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1785         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1786         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
1787
1788 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
1789             Richard Guenther  <rguenther@suse.de>
1790
1791         PR middle-end/23361
1792         * fold-const.c (fold_comparison): Handle obfuscated comparisons
1793         against INT_MIN/INT_MAX.
1794         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
1795         file if a loop is removed.
1796
1797 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
1798
1799         * calls.c (store_one_arg): Pass correct alignment to
1800         emit_push_insn for non-BLKmode values.
1801         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
1802         unaligned stack slot via a suitably aligned slot.
1803
1804 2007-02-08  DJ Delorie  <dj@redhat.com>
1805
1806         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
1807         warnings.
1808         (legal_subregs): Use unsigned char, make const.
1809         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
1810
1811 2007-02-08  Paul Brook  <paul@codesourcery.com>
1812
1813         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
1814         special interworking needed.
1815
1816 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
1817
1818         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
1819         conditional to __SSE2__.
1820         (Entries below should have been added to first ChangeLog
1821         entry for amdfam10 dated 2007-02-05)
1822         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
1823         defined.
1824         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
1825         defined.
1826         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
1827         defined.
1828
1829 2007-02-08  DJ Delorie  <dj@redhat.com>
1830
1831         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
1832         * config/m32c/m32c.c (legal_subregs): New.
1833         (m32c_illegal_subreg_p): New.
1834         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
1835         unsupported subregs of hard regs.
1836
1837 2007-02-08  Jan Hubicka  <jh@suse.cz>
1838
1839         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
1840         the same one; always update histograms.
1841
1842 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1843
1844         * passes.c (init_optimization_passes): Tidy comment.
1845
1846 2007-02-08  Roger Sayle  <roger@eyesopen.com>
1847
1848         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
1849         strip zero_extend, bswap and rotates from POCOUNT's argument.
1850         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
1851         zero_extend and rotates from PARITY's argument.
1852         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
1853         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
1854         of an integer constant at compile-time.
1855
1856 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1857
1858         PR 30562
1859         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
1860         Update all users.
1861         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
1862         users.
1863         (init_alias_info):
1864         * tree-ssa-live.c (remove_unused_locals): Do not remove
1865         TREE_ADDRESSABLE variables.
1866         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
1867         * tree-ssa-operands.c (add_virtual_operand): Remove argument
1868         FOR_CLOBBER.  Update all users.
1869         If VAR has an associated alias set, add a virtual operand for
1870         it if no alias is found to conflict with the memory reference.
1871
1872 2007-02-07  Jan Hubicka  <jh@suse.cz>
1873             Robert Kidd <rkidd@crhc.uiuc.edu>
1874
1875         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
1876
1877 2007-02-07  Ian Lance Taylor  <iant@google.com>
1878
1879         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
1880
1881 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1882
1883         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
1884         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
1885         tablejumpdi, movsi_to_cr_one): Remove constraints from
1886         define_expand's match_operands.
1887
1888 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1889
1890         * global.c (compute_regsets): Move declatation of "i" inside of
1891         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
1892
1893 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
1894
1895         PR c++/30703
1896         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
1897         of INDIRECT_REF <RESULT_DECL>.
1898
1899         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
1900
1901 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
1902             Kaz Kojima  <kkojima@gcc.gnu.org>
1903
1904         PR target/29746
1905         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
1906         properly.
1907         (sh_initialize_trampoline): Add parentheses to avoid a warning.
1908
1909 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1910
1911         * doc/loop.texi: Document possibility not to perform disambiguation
1912         of loops with multiple latches.
1913         * cfgloopmanip.c (alp_enum_p): Removed.
1914         (add_loop): Handle subloops.  Use get_loop_body_with_size.
1915         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
1916         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
1917         the new forwarder block.
1918         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
1919         Handle the case latch is NULL.
1920         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
1921         when marking loop exits.
1922         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
1923         be modified.
1924         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
1925         disambiguate_loops_with_multiple_latches.
1926         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
1927         before fix_loop_structure.
1928         * cfgloop.c: Include pointer-set.h and output.h.
1929         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
1930         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
1931         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
1932         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
1933         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
1934         disambiguate_multiple_latches, get_loop_body_with_size,
1935         disambiguate_loops_with_multiple_latches): New functions.
1936         (flow_loop_dump): Dump multiple latch edges.
1937         (flow_loop_nodes_find): Handle loops with multiple latches.
1938         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
1939         (glb_enum_p): Modified.
1940         (get_loop_body): Use get_loop_body_with_size.
1941         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
1942         (AVOID_CFG_MODIFICATIONS): New constant.
1943         (disambiguate_loops_with_multiple_latches, add_loop,
1944         get_loop_body_with_size): Declare.
1945         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
1946
1947 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
1948
1949         PR inline-asm/28686
1950         * global.c (compute_regsets): New function.
1951         (global_alloc): Refactored ELIMINABLE_REGSET
1952         and NO_GLOBAL_ALLOC_REGS computation out.
1953         (rest_of_handle_global_alloc): Call compute_regsets()
1954         for non-optimizing case.
1955
1956 2007-02-06  Richard Henderson  <rth@redhat.com>
1957
1958         * config/i386/constraints.md (Y2): Rename from Y.
1959         (Yi): New constraint.
1960         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
1961         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
1962         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
1963         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
1964         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
1965         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
1966         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
1967         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
1968         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
1969         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
1970         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
1971         vec_extractv2si_1): Change Y constraints to Y2.
1972         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
1973         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
1974         Change Y constraints to Y2.
1975         (sse2_loadld): Change Y constraints to x.
1976
1977 2007-02-06  Roger Sayle  <roger@eyesopen.com>
1978
1979         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
1980         (parity<mode>2): New define_expand using rs6000_emit_parity.
1981         * config/rs6000/rs6000.c (rs6000_emit_popcount,
1982         rs6000_emit_parity): New functions.
1983         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
1984         rs6000_emit_parity): Prototype here.
1985
1986 2007-02-06  Ian Lance Taylor  <iant@google.com>
1987
1988         * lower-subreg.c (simple_move_operand): Reject CONST.
1989         (resolve_clobber): Call validate_change rather than directly
1990         assigning to XEXP (pat, 0).
1991
1992 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
1993
1994         * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
1995         (tree-ssa-reassoc.o): Add pointer-set.h dependency.
1996         (tree-cfg.o): Remove hashtab.h dependency.
1997
1998         * tree-ssa-loop-ivopts.c: Include pointer-set.h.
1999         (struct ivopts_data): Change niters to pointer_map_t.
2000         (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
2001         (niter_for_exit): Create pointer_map on demand.  Change for
2002         pointer_map API.
2003         (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
2004         (free_loop_data): Destroy data->niters if created and reset field.
2005         (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
2006         (tree_ssa_iv_optimize_loop): Check for presence of stale data.
2007
2008         * tree-ssa-reassoc.c: Include pointer-set.h.
2009         (bb_rank): Change to long *.
2010         (operand_rank): Change to pointer_map_t.
2011         (find_operand_rank): Return long, -1 if not found.  Declare as inline.
2012         (insert_operand_rank): Accept long.
2013         (operand_entry_hash, operand_entry_eq): Remove.
2014         (get_rank): Return long.  Adjust for changes above.
2015         (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
2016         and operand_rank.
2017         (fini_reassoc): Delete operand_rank with pointer_map_destroy.
2018
2019         * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
2020         (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
2021         (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
2022         is not NULL.
2023         (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
2024         directly since it cannot be NULL.
2025         (get_vi_for_tree): Rewrite for pointer_map API.
2026         (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
2027         (init_alias_vars): Create vi_for_tree as pointer_map.
2028         (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.
2029
2030         * tree-cfg.c: Don't include hashtab.h.
2031         (edge_to_cases): Declare as pointer_map.
2032         (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
2033         Delete.
2034         (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
2035         (start_recording_case_labels): Create edge_to_cases as pointer_map.
2036         (end_recoding_case_labels): Cleanup edge_to_cases manually before
2037         destroying it.
2038         (record_switch_edge): Delete.
2039         (get_cases_for_edge): Adjust for pointer_map API, inline
2040         record_switch_edge (rewritten for new API), remove goto.
2041
2042 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2043
2044         * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
2045         * tree-nested.c: Include pointer-set.h.
2046         (var_map_elt, var_map_eq, var_map_hash): Delete.
2047         (struct nesting_info): Remove GTY marker.  Change the two htab_t's
2048         to pointer_map_t's.
2049         (nesting_info_bitmap_obstack): New.
2050         (lookup_field_for_decl): Adjust for pointer_map API.
2051         (lookup_tramp_for_decl): Adjust for pointer_map API.
2052         (get_nonlocal_debug_decl): Adjust for pointer_map API.
2053         (get_local_debug_decl): Adjust for pointer_map API.
2054         (convert_nl_goto_reference): Adjust for pointer_map API.
2055         (convert_nl_goto_receiver): Adjust for pointer_map API.
2056         (create_nesting_tree): Create outside GGC space.  Create bitmap on
2057         the new obstack.  Create field_map and var_map as pointer_maps.
2058         (free_nesting_tree): Adjust for changes to create_nesting_tree.
2059         (root): Delete.
2060         (lower_nested_functions): Move root here, no need to NULL it.
2061         Initialize and release the obstack.
2062
2063 2007-02-06  Paolo Bonzini  <bonzini@gnu.org>
2064
2065         * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
2066         Remove prototypes and make them non-static.
2067         (struct tree_int_map): Remove.
2068         * tree.h (struct tree_int_map): Move here, turning TO into an
2069         unsigned int.
2070         (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.
2071
2072         * tree.h (TREE_COMPLEXITY): Remove.
2073         (struct tree_exp): Remove complexity field.
2074         * tree.c (build1_stat): Don't set it.
2075
2076 2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
2077             Victor Kaplansky  <victork@il.ibm.com>
2078
2079         * tree-vectorizer.c (vect_is_simple_use): Support induction.
2080         (vect_is_simple_reduction): Support reduction with induction as
2081         one of the operands.
2082         (vect_is_simple_iv_evolution): Fix formatting.
2083         * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
2084         formatting.  Don't mark induction phis for vectorization.
2085         (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
2086         * tree-vect-transform.c (get_initial_def_for_induction): New function.
2087         (vect_get_vec_def_for_operand): Support induction.
2088         (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
2089         induction case.
2090         (vectorizable_reduction): Support reduction with induction as one of
2091         the operands.
2092         (vectorizable_type_demotion): Use def-type of stmt argument rather
2093         than dummy def-type.
2094
2095         * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
2096         flag_tree_scev_cprop.
2097         * common.opt (tree-scev-cprop): New flag.
2098
2099         * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
2100         call to vect_get_new_vect_var.
2101
2102 2007-02-06  Ira Rosen  <irar@il.ibm.com>
2103
2104         * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
2105         vectype is not NULL.
2106         (vect_pattern_recog_1): Likewise.
2107
2108 2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2109
2110         * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
2111         (fold_negate_expr): Likewise.
2112
2113 2007-02-05  Alexandre Oliva  <aoliva@redhat.com>
2114
2115         PR debug/30189
2116         * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
2117         even if cv-qualification is the same.
2118
2119 2007-02-05  Geoffrey Keating  <geoffk@apple.com>
2120
2121         * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
2122         __enable_execute_stack on completion.
2123
2124 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2125
2126         * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
2127         athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
2128         athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
2129         athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
2130         athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
2131         athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
2132         athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
2133         athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.
2134
2135 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2136
2137         * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
2138         cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
2139         swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
2140         fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
2141         x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
2142         floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
2143         floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
2144         mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
2145         umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
2146         umuldi3_highpart_rex64, umulsi3_highpart_insn,
2147         umulsi3_highpart_zext, smuldi3_highpart_rex64,
2148         smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
2149         x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
2150         sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
2151         sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
2152         sqrtextenddfxf2_i387): Added amdfam10_decode.
2153
2154         * config/i386/athlon.md (athlon_idirect_amdfam10,
2155         athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
2156         athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
2157         athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
2158         athlon_ivector_store_amdfam10): New define_insn_reservation.
2159         (athlon_idirect_loadmov, athlon_idirect_movstore): Added
2160         amdfam10.
2161
2162 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2163
2164         * config/i386/athlon.md (athlon_call_amdfam10,
2165         athlon_pop_amdfam10, athlon_lea_amdfam10): New
2166         define_insn_reservation.
2167         (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
2168         athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
2169         athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.
2170
2171 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2172
2173         * config/i386/athlon.md (athlon_sseld_amdfam10,
2174         athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
2175         athlon_mmxssest_short_amdfam10): New define_insn_reservation.
2176
2177 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2178
2179         * config/i386/athlon.md (athlon_sseins_amdfam10): New
2180         define_insn_reservation.
2181         * config/i386/i386.md (sseins): Added sseins to define_attr type
2182         and define_attr unit.
2183         * config/i386/sse.md: Set type attribute to sseins for insertq
2184         and insertqi.
2185
2186 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2187
2188         * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
2189         ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
2190         ssecomi_load_amdfam10, ssecomi_amdfam10,
2191         sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
2192         define_insn_reservation.
2193         (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.
2194
2195 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2196
2197         * config/i386/athlon.md (cvtss2sd_load_amdfam10,
2198         cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
2199         cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
2200         cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
2201         cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
2202         cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
2203         define_insn_reservation.
2204
2205         * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
2206         cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
2207         cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
2208         cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
2209         cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.
2210
2211 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2212
2213         * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
2214         athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
2215         athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
2216         (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
2217         athlon_ssemul_load_k8): Added amdfam10.
2218
2219 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2220
2221         * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
2222         (x86_sse_unaligned_move_optimal): New variable.
2223
2224         * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
2225         m_AMDFAM10.
2226         (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
2227         for unaligned vector SSE double/single precision loads for AMDFAM10.
2228
2229 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2230
2231         * config/i386/i386.h (TARGET_AMDFAM10): New macro.
2232         (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
2233         Define TARGET_CPU_DEFAULT_amdfam10.
2234         (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
2235         (processor_type): Add PROCESSOR_AMDFAM10.
2236
2237         * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
2238         processor_type in config/i386/i386.h.
2239         Enable imul peepholes for TARGET_AMDFAM10.
2240
2241         * config.gcc: Add support for --with-cpu option for amdfam10.
2242
2243         * config/i386/i386.c (amdfam10_cost): New variable.
2244         (m_AMDFAM10): New macro.
2245         (m_ATHLON_K8_AMDFAM10): New macro.
2246         (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
2247         x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
2248         x86_promote_QImode, x86_integer_DFmode_moves,
2249         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2250         x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
2251         x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
2252         x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
2253         x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
2254         Enable/disable for amdfam10.
2255         (override_options): Add amdfam10_cost to processor_target_table.
2256         Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
2257         processor_alias_table.
2258         (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
2259         (ix86_adjust_cost): Add code for amdfam10.
2260
2261 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2262
2263         * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
2264         instruction set feature flag. Add new (-mpopcnt) flag for popcnt
2265         instruction. Add new SSE4A (-msse4a) instruction set feature flag.
2266         * config/i386/i386.h: Add builtin definition for SSE4A.
2267         * config/i386/i386.md: Add support for ABM instructions
2268         (popcnt and lzcnt).
2269         * config/i386/sse.md: Add support for SSE4A instructions
2270         (movntss, movntsd, extrq, insertq).
2271         * config/i386/i386.c: Add support for ABM and SSE4A builtins.
2272         Add -march=amdfam10 flag.
2273         * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
2274         * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
2275         and amdfam10.
2276         * doc/extend.texi: Add documentation for SSE4A builtins.
2277
2278 2007-02-05  Bob Wilson  <bob.wilson@acm.org>
2279
2280         * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.
2281
2282 2007-02-05  Richard Guenther  <rguenther@suse.de>
2283
2284         * tree-vectorizer.h (vectorizable_function): Add argument type
2285         argument, change return type.
2286         * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
2287         * tree-vect-transform.c (vectorizable_function): Handle extra
2288         argument, return vectorized function decl.
2289         (build_vectorized_function_call): Remove.
2290         (vectorizable_call): Handle calls with result and argument types
2291         differing.  Handle loop vectorization factor correctly.
2292         * targhooks.c (default_builtin_vectorized_function): Adjust for
2293         extra argument.
2294         * targhooks.h (default_builtin_vectorized_function): Likewise.
2295         * target.h (builtin_vectorized_function): Add argument type
2296         argument.
2297         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2298         extra argument, allow vectorizing of lrintf.
2299         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
2300         documentation of target hook.
2301
2302 2007-02-05  Hans-Peter Nilsson  <hp@axis.com>
2303
2304         PR target/30665
2305         * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
2306         ("*andhi_clear", andu (casesi+45)): For size-changed operand where
2307         memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.
2308
2309 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2310
2311         * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
2312         BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
2313         <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
2314         * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
2315         before canonicalizing sincos to cexpi.
2316         (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
2317
2318 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2319
2320         * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
2321         Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
2322         (alpha_init_builtins): Use alpha_add_builtins to process tables.
2323
2324 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2325
2326         * mips-tfile.c (initialize_init_file): Correct endianness test.
2327
2328 2007-02-05  Kazu Hirata  <kazu@codesourcery.com>
2329
2330         * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
2331         the 'y' constraint.
2332
2333 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2334
2335         * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
2336         saves in a PARALLEL before the register assignments.
2337
2338 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2339
2340         * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
2341         DWARF_FRAME_RETURN_COLUMN to be a general register.
2342         * dwarf2out.c (init_return_column_size): New function, split from...
2343         (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
2344         DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
2345         to be nongeneral registers.
2346         * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
2347         integer registers.
2348         (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
2349         (DWARF_ALT_FRAME_RETURN_COLUMN): Define.
2350
2351 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2352
2353         * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.
2354
2355 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2356
2357         * cfgloopmanip.c (loop_delete_branch_edge): Removed.
2358         (remove_path): Use can_remove_branch_p and remove_branch instead
2359         of loop_delete_branch_edge.
2360         * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
2361         (tree_transform_and_unroll_loop): Remove dead branches immediately.
2362         Update profile using scale_dominated_blocks_in_loop.
2363         * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
2364         * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
2365         (can_remove_branch_p, remove_branch): Declare.
2366         * tree-cfg.c (tree_can_remove_branch_p): New function.
2367         (tree_cfg_hooks): Add tree_can_remove_branch_p.
2368         * cfgrtl.c (rtl_can_remove_branch_p): New function.
2369         (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.
2370
2371 2007-02-05  Jan Hubicka  <jh@suse.cz>
2372
2373         PR middle-end/30696
2374         * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
2375         nodes in cgraph, don't remove offline copy of the function.
2376
2377 2007-02-04  Jan Hubicka  <jh@suse.cz>
2378
2379         * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
2380         vectors might cause maybe_lookup_element_for_expr to be called
2381         on non-sra-candidate.
2382
2383 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2384
2385         * config/bfin/bfin-modes.def, config/bfin/bfin.c,
2386         config/bfin/bfin.md, config/bfin/predicates.md: Follow
2387         spelling conventions.
2388
2389 2007-02-04  Richard Guenther  <rguenther@suse.de>
2390
2391         PR middle-end/30636
2392         * fold-const.c (try_move_mult_to_index): Make sure to not
2393         overflow one dimension of a multi-dimensional array access.
2394
2395 2007-02-04  Jan Hubicka  <jh@suse.cz>
2396
2397         * passes.c (init_optimization_passes): Reindent.
2398
2399 2007-02-04  Jan Hubicka  <jh@suse.cz>
2400             Eric Botcazou  <ebotcazou@adacore.com>
2401
2402         * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
2403         (execute_fixup_cfg): Break out the abnormal goto code.
2404         * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
2405         (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
2406         (optimize_inline_calls): Call make_nonlocal_label_edges.
2407
2408 2007-02-04  Jan Hubicka  <jh@suse.cz>
2409
2410         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
2411         true when something was changed.
2412         (rename_ssa_copies): When something was changed, do
2413         TODO_remove_unused_locals.
2414         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
2415         add TODO_remove_unused_locals when instruction was removed.
2416
2417 2007-02-04  Jan Hubicka  <jh@suse.cz>
2418
2419         * ipa-inline.c (try_inline): Improve debug output; work on already
2420         inline edges too.
2421         (cgraph_decide_inlining_incrementally): Indent; improve debug output;
2422         call try_inline for already inlined edges too when flattening;
2423         inline also functions that make callee growth but overall unit size
2424         reduce.
2425
2426 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2427
2428         * config/m32c/bitops.md, config/m32c/jump.md,
2429         config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
2430         config/m32r/m32r.h, config/m32r/m32r.md,
2431         config/m32r/predicates.md, config/m68hc11/larith.asm,
2432         config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
2433         config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
2434         config/mips/mips-protos.h, config/mips/mips.c,
2435         config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
2436         config/mn10300/mn10300.h, config/mn10300/predicates.md,
2437         config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
2438         spelling conventions.
2439
2440         * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
2441         Follow spelling conventions.
2442
2443 2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>
2444
2445         * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
2446         warn about C++0x compatibility.
2447
2448 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2449
2450         * config/h8300/h8300.c, config/h8300/h8300.h,
2451         config/h8300/h8300.md: Follow spelling conventions.
2452
2453 2007-02-03  Uros Bizjak  <ubizjak@gmail.com>
2454
2455         PR middle-end/30667
2456         * combine.c (try_combine): Do not substitute source operand
2457         with constants wider than 2 * HOST_BITS_PER_WIDE_INT.
2458
2459 2007-02-03  Jan Hubicka  <jh@suse.cz>
2460
2461         PR gcov-profile/30650
2462         * value-prof.c (stringop_block_profile): Fix handling of size counter;
2463         do not divide by zero for never executed counters.
2464         (tree_find_values_to_profile): Fix counters.
2465         * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2466
2467 2007-02-03  Ian Lance Taylor  <iant@google.com>
2468
2469         * lower-subreg.c (simple_move_operand): New static function,
2470         broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
2471         operands.
2472         (simple_move): Call simple_move_operand.
2473         (find_decomposable_subregs): Add special handling of MEMs.
2474         (can_decompose_p): Rename from cannot_decompose_p.  Reverse
2475         meaning of return value.  If we see a hard register, test whether
2476         it can store a word_mode value.  Change all callers.
2477
2478 2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2479
2480         * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
2481         ftrapv insns and expanders.
2482         (subdi3): Change define_expand operand 1 to arith11_operand, and
2483         operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
2484         pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
2485         handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
2486         respectively.
2487
2488         PR middle-end/30174
2489         * varasm.c (notice_global_symbol): Treat global objects as weak when
2490         flag_shlib is true.
2491
2492 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2493
2494         * emit-rtl.c (dconstpi): Delete.
2495         (dconstsqrt2): New.
2496         (init_emit_once): Delete dconstpi and init dconstsqrt2.
2497         * real.h (dconstpi): Delete.
2498         (dconstsqrt2): New.
2499         * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
2500         (fold_builtin_hypot): Likewise.
2501
2502 2007-02-03  Tom Tromey  <tromey@redhat.com>
2503
2504         PR driver/30246
2505         * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
2506         -gcoff3, -gxcoff3, -gvms3 implies -dD.
2507
2508 2007-02-03  Kazu Hirata  <kazu@codesourcery.com>
2509
2510         * c-decl.c, config/avr/avr.c, config/avr/avr.h,
2511         config/m68k/m68k.c, config/m68k/netbsd-elf.h,
2512         config/mn10300/mn10300.c, config/pdp11/pdp11.h,
2513         config/rs6000/cell.md, config/rs6000/darwin.h,
2514         config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
2515         config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
2516         jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
2517         tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
2518         typos.  Follow spelling conventions.
2519         * doc/invoke.texi: Follow spelling conventions.
2520
2521 2007-02-03  Roger Sayle  <roger@eyesopen.com>
2522
2523         * simplify-rtx.c (simplify_relational_operation_1): Implement some
2524         canonicalization transformations that attempt to simplify integer
2525         constant comparisons to become comparisons against zero.
2526
2527 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2528
2529         * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
2530         fabs(x)*sqrt(2).
2531         * fold-const.c (fold_binary): Fix comment typos.  Fold complex
2532         (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).
2533
2534 2007-02-02  Mike Stump  <mrs@apple.com>
2535
2536         * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
2537         * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
2538         (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
2539         generate a branch island.
2540
2541 2007-02-02  Bob Wilson  <bob.wilson@acm.org>
2542
2543         * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
2544         (xtensa_legitimate_address_p): New.
2545         (xtensa_legitimize_address): New.
2546         (xtensa_output_addr_const_extra): New.
2547         * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
2548         (BASE_REG_P): New.
2549         (REG_OK_FOR_BASE_P): Use BASE_REG_P.
2550         (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
2551         (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
2552         (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
2553         * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
2554         (xtensa_legitimize_address): New.
2555         (xtensa_output_addr_const_extra): New.
2556
2557 2007-02-02  Steve Ellcey  <sje@cup.hp.com>
2558
2559         * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
2560
2561 2007-02-02  Ian Lance Taylor  <iant@google.com>
2562
2563         * expmed.c (expand_divmod): Add comment.
2564
2565 2007-02-02  Kazu Hirata  <kazu@codesourcery.com>
2566
2567         * emit-rtl.c (renumber_insns): Remove.
2568         * flags.h: Remove the extern for flag_renumber_insns.
2569         * rtl.h: Remove the prototype for renumber_insns.
2570         * toplev.c (flag_renumber_insns): Remove.
2571
2572 2007-02-02  Hui-May Chang  <hm.chang@apple.com>
2573
2574         Revert for x86 darwin:
2575         2005-06-19  Uros Bizjak  <uros@kss-loka.si>
2576
2577         * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
2578         code before the following patch under TARGET_MACHO.
2579         (ix86_function_value_regno_p): Likewise.
2580
2581 2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2582
2583         * fold-const.c (negate_expr_p, fold_negate_expr): Handle
2584         COMPLEX_EXPR.
2585
2586 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2587
2588         PR target/29682
2589         * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
2590         general or fp registers.  Add comments.
2591         * config/ia64/ia64.md (reg_pred_prefix): Add comment.
2592
2593 2007-02-02  Paolo Bonzini  <bonzini@gnu.org>
2594
2595         * pointer-set.c (insert_aux): Only return insertion slot.
2596         (pointer_set_insert): Adjust.
2597         (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
2598         pointer_map_destroy, pointer_map_insert, pointer_map_contains,
2599         pointer_map_traverse): New.
2600         * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
2601         pointer_map_create,  pointer_map_destroy, pointer_map_insert,
2602         pointer_map_contains, pointer_map_traverse): Declare.
2603
2604 2007-02-02  Jakub Jelinek  <jakub@redhat.com>
2605
2606         PR middle-end/30473
2607         * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
2608         sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).
2609
2610 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2611
2612         * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
2613
2614         (struct _dep): New type.
2615         (dep_t): New typedef.
2616         (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
2617         (DEP_STATUS): New access macro.  The macro with the same name was
2618         renamed to DEP_LINK_STATUS.
2619         (dep_init): Declare function
2620
2621         (struct _dep_link): New type.
2622         (dep_link_t): New typedef.
2623         (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
2624         (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
2625         (DEP_LINK_STATUS): New macro.
2626         (debug_dep_links): New debug function.
2627
2628         (struct _deps_list): New type.
2629         (deps_list_t): New typedef.
2630         (DEPS_LIST_FIRST): New access macro.
2631         (FOR_EACH_DEP_LINK): New cycle macro.
2632         (create_deps_list, free_deps_list, delete_deps_list): Declare
2633         functions.
2634         (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
2635         (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
2636         (copy_deps_list_change_con): Ditto.
2637
2638         (move_dep_link): Declare function.
2639
2640         (struct _dep_node): New type.
2641         (dep_node_t): New typedef.
2642         (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
2643
2644         (struct haifa_insn_data.back_deps): New field to hold backward
2645         dependencies of the insn.
2646         (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
2647         to deps_list_t.
2648         (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
2649         Change its type to deps_list_t.
2650         (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
2651         (INSN_DEPEND): Rename to INSN_FORW_DEPS.
2652         (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
2653
2654         (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
2655
2656         (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.
2657
2658         (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
2659         all callers.
2660         (dep_cost): Declare.
2661
2662         * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
2663         (ds_to_dk, dk_to_ds): New functions.
2664
2665         (init_dep_1): New static function.
2666         (init_dep): New function.
2667         (copy_dep): New static function.
2668
2669         (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
2670         functions.
2671         (detach_dep_link): New static function.
2672         (move_dep_link): New function.
2673
2674         (dep_links_consistent_p, dump_dep_links): New static functions.
2675         (debug_dep_links): New debugging function.
2676
2677         (deps_obstack, dl_obstack, dn_obstack): New static variables.
2678
2679         (alloc_deps_list, init_deps_list): New static functions.
2680         (create_deps_list): New function.
2681         (clear_deps_list): New static function.
2682         (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
2683         (deps_list_consistent_p, dump_deps_list): New static functions.
2684         (debug_deps_list): New function.
2685         (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
2686         functions.
2687         (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
2688
2689         (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
2690         use new scheduler dependencies lists.
2691         (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
2692         (sched_analyze): Ditto.  Initialize dependencies lists.
2693         (add_forw_dep, compute_forward_dependences): Update to use new
2694         scheduler dependencies lists.
2695
2696         (init_dependency_caches): Init deps_obstack.
2697         (free_dependency_caches): Free deps_obstack.
2698
2699         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
2700         new scheduler dependencies lists.
2701         (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
2702         (add_back_forw_dep, delete_back_forw_dep): Ditto.
2703
2704         * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
2705         Update to use new scheduler dependencies lists.
2706         (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
2707         (debug_dependencies): Ditto.
2708         (schedule_region): Update comments.
2709
2710         * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
2711         scheduler dependencies lists.
2712         (schedule_ebb): Update comments.
2713
2714         * rtl.def (DEPS_LIST): Remove.
2715
2716         * lists.c (unused_deps_list): Remove.
2717         (free_list): Update assertions.
2718
2719         (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
2720         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2721
2722         * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
2723         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2724
2725         * haifa-sched.c (comments): Update.
2726         (insn_cost1): Remove.  Inline the code into insn_cost ().
2727         (insn_cost): Update to use new scheduler dependencies lists.  Move
2728         processing of the dependency cost to dep_cost ().
2729         (dep_cost): New function.  Use it instead of insn_cost () when
2730         evaluating cost of the dependency.  Use compatible interface to
2731         interact with the target.
2732         (priority): Update to use new scheduler dependencies lists.
2733         (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
2734         with greater number of insns that depend on the insn.
2735         (schedule_insn): Update to use new scheduler dependencies lists.  Add
2736         code to free backward dependencies lists.  Inline and optimize code
2737         from resolve_dep () - see PR28071.
2738         (ok_for_early_queue_removal): Update to use new scheduler dependencies
2739         lists.  Update call to targetm.sched.is_costly_dependence hook.
2740
2741         (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
2742         scheduler dependencies lists.
2743
2744         (resolve_dep): Remove.  Move the logic to schedule_insn ().
2745         (init_h_i_d): Initialize dependencies lists.
2746
2747         (process_insn_depend_be_in_spec): Rename to
2748         process_insn_forw_deps_be_in_spec.  Update to use new scheduler
2749         dependencies lists.
2750         (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
2751         Update to use new scheduler dependencies lists.
2752         (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
2753
2754         * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
2755         new scheduler dependencies lists.
2756         (build_intra_loop_deps): Ditto.
2757
2758         * target.h (struct _dep): Declare to use in
2759         gcc_target.sched.is_costly_dependence.
2760         (struct gcc_target.sched.adjust_cost): Fix typo.
2761         (struct gcc_target.sched.is_costly_dependence): Change signature to use
2762         single dep_t parameter instead of an equivalent triad.
2763         (struct gcc_target.sched.adjust_cost_2): Remove.
2764
2765         * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
2766
2767         * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
2768
2769         * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
2770         documentation.
2771         (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
2772
2773         * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
2774         (REG_DEP_TRUE): Document.
2775
2776         * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
2777         Change signature to correspond to the targetm.sched.adjust_cost hook.
2778         Update use in TARGET_SCHED_ADJUST_COST_2.
2779         (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
2780         (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
2781         new scheduler dependencies lists.
2782         (ia64_gen_check): Ditto.
2783
2784         * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
2785         dependencies lists.
2786
2787         * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
2788         signature to correspond to the targetm.sched.is_costly_dependence hook.
2789         (is_costly_group): Update to use new scheduler dependencies lists.
2790
2791         * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
2792         instead of INSN_COST () macro.
2793
2794 2007-02-01  Ian Lance Taylor  <iant@google.com>
2795
2796         * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
2797
2798 2007-02-01  Guy Martin  <gmsoft@gentoo.org>
2799
2800         * pa.md (tp_load): Correct mfctl instruction syntax.
2801
2802 2007-02-01  Geoffrey Keating  <geoffk@apple.com>
2803
2804         * config/rs6000/rs6000.c (rs6000_stack_info): Correct
2805         altivec_padding_size calculation on AIX.  Improve comment, add
2806         assert to verify that it's right.
2807
2808         * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
2809         64-bit.
2810
2811 2007-2-01  Seongbae Park  <seongbae.park@gmail.com>
2812
2813         PR inline-asm/28686
2814         * global.c (global_alloc): Add mising initialization of
2815         ELIMINABLE_REGSET.
2816
2817 2007-02-01  Roger Sayle  <roger@eyesopen.com>
2818
2819         * alias.c (init_alias_analysis): Correct whitespace.
2820         * bb-reorder.c (fix_edges_for_rarely_executed_code,
2821         partition_hot_cold_basic_blocks): Likewise.
2822         * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
2823         expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
2824         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
2825         fold_builtin_snprintf_chk, fold_builtin_printf,
2826         fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
2827         do_mpfr_arg3, do_mpfr_sincos): Likewise.
2828         * cfgcleanup.c (cleanup_cfg): Likewise.
2829         * cfgexpand.c (tree_expand_cfg): Likewise.
2830         * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
2831         * function.c (get_next_funcdef_no): Likewise.
2832         * gengtype.c (main): Likewise.
2833         * genmodes.c (main): Likewise.
2834         * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
2835         * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
2836         * ifcvt.c (noce_emit_move_insn): Likewise.
2837         * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
2838         Likewise.
2839         * stor-layout.c (get_best_mode): Likewise.
2840         * tree-ssa-loop-niter.c (get_val_for): Likewise.
2841         * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
2842         scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
2843         perform_var_substitution, solve_graph): Likewise.
2844         * tree-vrp.c (vrp_finalize): Likewise.
2845
2846 2007-02-01  Ian Lance Taylor  <iant@google.com>
2847
2848         * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
2849         high part of a paradoxical subreg, return a constant zero.
2850
2851 2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>
2852
2853         * toplev.c (lang_dependent_init): Call init_set_costs.
2854         * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
2855
2856 2007-02-01  Richard Guenther  <rguenther@suse.de>
2857
2858         PR middle-end/30656
2859         * fold-const.c (fold_negate_expr): Allow negating a
2860         constant if overflow does not change.
2861
2862 2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2863
2864         * doc/c-tree.texi (Expression trees): Improve markup.
2865         * doc/tm.texi (Register Classes, Addressing Modes)
2866         (Floating Point): Fix spacing after abbreviations.  Fix some
2867         typos.
2868
2869 2007-02-01  Ben Elliston  <bje@au.ibm.com>
2870
2871         * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
2872         * doc/contrib.texi: Likewise.
2873         * doc/install.texi: Likewise.
2874
2875 2007-01-31  Richard Henderson  <rth@redhat.com>
2876             Ian Lance Taylor  <iant@google.com>
2877
2878         * lower-subreg.c: New file.
2879         * rtl.def (CONCATN): Define.
2880         * passes.c (init_optimization_passes): Add pass_lower_subreg and
2881         pass_lower_subreg2.
2882         * emit-rtl.c (update_reg_offset): New static function, broken out
2883         of gen_rtx_REG_offset.
2884         (gen_rtx_REG_offset): Call update_reg_offset.
2885         (gen_reg_rtx_offset): New function.
2886         * regclass.c: Revert patch of 2006-03-05, restoring
2887         reg_scan_update.
2888         (clear_reg_info_regno): New function.
2889         * dwarf2out.c (concatn_loc_descriptor): New static function.
2890         (loc_descriptor): Handle CONCATN.
2891         * common.opt (fsplit_wide_types): New option.
2892         * opts.c (decode_options): Set flag_split_wide_types when
2893         optimizing.
2894         * timevar.def (TV_LOWER_SUBREG): Define.
2895         * rtl.h (gen_reg_rtx_offset): Declare.
2896         (reg_scan_update): Declare.
2897         * regs.h (clear_reg_info_regno): Declare.
2898         * tree-pass.h (pass_lower_subreg): Declare.
2899         (pass_lower_subreg2): Declare.
2900         * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
2901         (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
2902         -fsplit-wide-types.
2903         * doc/rtl.texi (Regs and Memory): Document concat and concatn.
2904         * Makefile.in (OBJS-common): Add lower-subreg.o.
2905         (lower-subreg.o): New target.
2906
2907 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2908
2909         * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
2910
2911 2007-01-31  Anatoly Sokolov <aesok@post.ru>
2912
2913         PR target/19087
2914         * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
2915
2916 2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2917
2918         PR middle-end/29335
2919         * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.
2920
2921 2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>
2922
2923         * cfgloop.h: Include vec-prim.h.
2924         (enum li_flags): Remove LI_ONLY_OLD.
2925         (loop_iterator): Changed.
2926         (fel_next, fel_init): Iterate over loop tree.
2927         (FOR_EACH_LOOP_BREAK): New macro.
2928         * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
2929         FOR_EACH_LOOP.
2930         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
2931         * modulo-sched.c (sms_schedule): Ditto.
2932         * tree-vectorizer.c (vectorize_loops): Ditto.
2933         * doc/loop.texi: Update information on loop numbering and behavior of
2934         FOR_EACH_LOOP wrto new loops.
2935         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2936         add_to_evolution_1): Test nestedness of loops instead of comparing
2937         their numbers.
2938         * tree-chrec.c (chrec_fold_plus_poly_poly,
2939         chrec_fold_multiply_poly_poly, chrec_evaluate,
2940         hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
2941         reset_evolution_in_loop): Ditto.
2942         * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.
2943
2944 2007-01-31  Dirk Mueller  <dmueller@suse.de>
2945
2946         * c-common.c (warn_about_parentheses): Separate warning about
2947         un-parenthized sequence of comparison operators from the one
2948         which is supposed to warn about x <= y <= z.
2949
2950 2007-01-31  Uros Bizjak  <ubizjak@gmail.com>
2951
2952         * optabs.h (enum optab_index): Add new OTI_isinf.
2953         (isinf_optab): Define corresponding macro.
2954         * optabs.c (init_optabs): Initialize isinf_optab.
2955         * genopinit.c (optabs): Implement isinf_optab using isinf?f2
2956         patterns.
2957         * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
2958         (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
2959         using isinf_optab.
2960         (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
2961         expand_builtin_interclass_mathfn.
2962         * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
2963         * config/i386/i386.md (UNSPEC_FXAM): New constant.
2964         (fxam<mode>2_i387): New insn pattern.
2965         (isinf<mode>2) New expander to implement isinf, isinff and isinfl
2966         built-in functions as x87 inline asm.
2967
2968 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2969
2970         * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.
2971
2972 2007-01-30  Eric Christopher  <echristo@apple.com>
2973
2974         * config.gcc: Add geode.
2975
2976 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2977
2978         * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
2979         ipa-inline.c, tree-profile.c, tree-ssa-live.c,
2980         tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
2981         value-prof.c: Fix comment typos.
2982
2983 2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2984
2985         PR c++/24745
2986         * doc/invoke.texi (Wpointer-arith): Document warning.
2987
2988 2007-01-30  Janis Johnson  <janis187@us.ibm.com>
2989
2990         * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
2991         the list of discrepancies from the draft TR.
2992
2993 2007-01-30  Dirk Mueller  <dmueller@suse.de>
2994
2995         PR c++/30601
2996         * doc/invoke.texi (-Wreturn-type): Update description to
2997         match new behavior.
2998
2999 2007-01-30  Richard Sandiford  <richard@codesourcery.com>
3000
3001         * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
3002
3003 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
3004
3005         * builtins.c (expand_builtin_int_interclass_roundingfn): New function
3006         to handle optabs that operate on floating point input argument and
3007         output to integer output.
3008         (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
3009         (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
3010         (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
3011         expand_builtin_interclass_mathfn ().
3012         * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
3013         (ilogbsi2): Remove.
3014         (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
3015         ilogbl built-in functions as x87 intrinsics.
3016
3017 2007-01-30  Richard Guenther  <rguenther@suse.de>
3018
3019         PR middle-end/27657
3020         * dwarf2out.c (reference_to_unused): Query varpool if the
3021         variable was output.
3022
3023 2007-01-30  Richard Guenther  <rguenther@suse.de>
3024
3025         PR middle-end/30313
3026         * passes.c (execute_one_pass): Reset in_gimple_form to not
3027         confuse non-unit-at-a-time mode.
3028
3029 2007-01-29  Roger Sayle  <roger@eyesopen.com>
3030             Richard Guenther  <rguenther@suse.de>
3031
3032         * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
3033         avoid undefined behaviour on overflow.  Use force_fit_type_double
3034         to construct the constant with the specified TREE_OVERFLOW.
3035
3036 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3037
3038         * config/dfp-bit.c: Add parameterized support for fp exceptions.
3039         * config/dfp-bit.h: Ditto.
3040
3041 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3042
3043         * c-decl.c (pop_scope): Replace warnings with call to
3044         warn_for_unused_label.
3045         * c-common.h (warn_for_unused_label): Declare.
3046         * c-common.c (warn_for_unused_label): Define.
3047
3048 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3049
3050         * tree-optimize.c (update_inlined_to_pointers): Delete unused
3051         function.
3052
3053 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3054
3055         * Makefile.in (USER_H): Remove decfloat.h.
3056         * ginclude/decfloat.h: Delete, moving contents to ...
3057         * ginclude/float.h: Add support for decimal floating point,
3058         guarded by __STDC_WANT_DEC_FP__.
3059
3060 2007-01-29  Mike Stump  <mrs@apple.com>
3061
3062         * doc/gccint.texi (Top): Rename Loop Representation to Loop
3063         Analysis and Representation to resolve case insensitive conflict.
3064         * doc/loop.texi (Loop Analysis and Representation): Likewise.
3065
3066 2007-01-28  Daniel Berlin  <dberlin@dberlin.org>
3067
3068         * tree.h (struct tree_memory_tag): Add aliases member.
3069         (MTAG_ALIASES): New macro.
3070         * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
3071         (add_may_alias): Remove pointer-set. Update for may_aliases being
3072         a bitmap.
3073         (mark_aliases_call_clobbered): Update for may_aliases being a
3074         bitmap.
3075         (compute_tag_properties): Ditto.
3076         (create_partition_for): Ditto.
3077         (compute_memory_partitions): Ditto.
3078         (dump_may_aliases_for): Ditto.
3079         (is_aliased_with): Ditto.
3080         (add_may_alias_for_new_tag): Ditto.
3081         (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
3082         (compute_is_aliased): New function.
3083         (compute_may_aliases): Call compute_is_aliased).
3084         (init_alias_info): Initialize alias_bitmap_obstack.
3085         (union_alias_set_into): New function.
3086         (compute_flow_sensitive_aliasing): Use union_aliases_into.
3087         (have_common_aliases_p): Rewrite to take two bitmaps and use
3088         intersection.
3089         (compute_flow_insensitive_aliasing): Stop using pointer-sets.
3090         Update for bitmaps.
3091         (finalize_ref_all_pointers): Update for add_may_alias changes.
3092         (new_type_alias): Ditto.
3093         * tree-flow-inline.h (may_aliases): Return a bitmap.
3094         * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
3095         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
3096         may_aliases being a bitmap.
3097         * tree-flow.h (struct var_ann_d): Remove may_aliases member.
3098         may_aliases now returns a bitmap.
3099         * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
3100         being a bitmap.
3101         * tree-ssa-operands.c (add_virtual_operand): Update for
3102         may_aliases being a bitmap.
3103
3104 2007-01-29  Daniel Berlin  <dberlin@dberlin.org>
3105
3106         PR tree-optimization/30630
3107         * tree-ssa-structalias.c (do_complex_constraint): Mark correct
3108         variable as changed.
3109
3110 2007-01-29  Simon Martin  <simartin@users.sourceforge.net>
3111
3112         PR c++/28266
3113         * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
3114         expanded only once even if an error occurs.
3115
3116 2007-01-29  Ben Elliston  <bje@au.ibm.com>
3117
3118         * gcov-io.h (__gcov_indirect_call_profiler): Declare.
3119         (__gcov_average_profiler): Likewise.
3120         (__gcov_ior_profiler): Likewise.
3121         (__gcov_merge_ior): Likewise.
3122
3123 2007-01-28  Jan Hubicka  <jh@suse.cz>
3124
3125         * builtins.c (expand_builtin_memset): Fix typo in my last patch.
3126         * value-prof.c (stringop_block_profile): Likewise.
3127
3128 2007-01-28  Jan Hubicka  <jh@suse.cz>
3129
3130         * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
3131         variant handling histograms; add wrapper.
3132         (clear_storage_via_libcall): Export.
3133         (emit_block_move_hints): Break out from ...; add histograms.
3134         (emit_block_move): ... this one.
3135         (clear_storage_hints): Break out from ...; add histograms.
3136         (clear_storage): ... this one.
3137         (set_storage_via_memset): Handle histogram.
3138         * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
3139         (clear_storage_hints, clear_storage_via_libcall): Declare.
3140         (set_storage_via_setmem): Update prototype.
3141         * doc/md.texi (movmem, setmem): Document new arguments.
3142
3143         * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
3144         new histograms.
3145         (stringop_block_profile): New global function.
3146         (tree_stringops_values_to_profile): Profile block size and alignment.
3147         * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
3148         HIST_TYPE_IOR.
3149         (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
3150         (stringop_block_profile): Declare.
3151         * builtins.c: Include value-prof.h.
3152         (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
3153         * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
3154         (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
3155         (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
3156         * profile.c (instrument_values): Add new counters.
3157         * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
3158         calls.
3159         * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
3160         (tree_init_edge_profiler): Build new profilers.
3161         (tree_gen_average_profiler, tree_gen_ior_profiler): New.
3162         (pass_tree_profile): Add dump.
3163         (tree_profile_hooks): Update.
3164         * Makefile.in (LIBGCOV): Add new constants.
3165         * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
3166         __gcov_ior_profiler): New.
3167         * i386.md (movmem/setmem expanders): Add new optional arguments.
3168
3169 2007-01-28  David Edelsohn  <edelsohn@gnu.org>
3170
3171         * doc/md.texi (Standard Pattern Names): Document blockage pattern.
3172
3173 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3174
3175         * tree-ssa-loop-unswitch.c: Include tree-inline.h.
3176         (tree_unswitch_single_loop): Pass eni_size_weights to
3177         tree_num_loop_insns.
3178         * tree-ssa-loop-manip.c: Include tree-inline.h.
3179         (can_unroll_loop_p): Pass eni_size_weights to
3180         tree_num_loop_insns.
3181         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
3182         Pass eni_size_weights to estimate_num_insns.
3183         * tree.h (init_inline_once): Export.
3184         * toplev.c (backend_init): Call init_inline_once.
3185         * cgraphunit.c (cgraph_process_new_functions,
3186         cgraph_analyze_function): Pass eni_inlining_weights to
3187         estimate_num_insns.
3188         * ipa-inline.c (compute_inline_parameters): Ditto.
3189         * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
3190         to estimate_num_insns.
3191         (try_unroll_loop_completely): Pass eni_size_weights to
3192         tree_num_loop_insns.
3193         * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
3194         ot estimate_num_insns.
3195         * tree-ssa-loop-prefetch.c: Include tree-inline.h.
3196         (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
3197         * tree-inline.c (eni_inlining_weights, eni_size_weights,
3198         eni_time_weights): New variables.
3199         (init_inline_once): Initialize them.
3200         (struct eni_data): Mew.
3201         (estimate_num_insns_1, estimate_num_insns): Use weights.
3202         * tree-inline.h (struct eni_weights_d): New.
3203         (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
3204         (estimate_num_insns): Declaration changed.
3205         * cfgloop.h (tree_num_loop_insns): Declaration changed.
3206         * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
3207         tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.
3208
3209 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3210
3211         * tree-data-ref.c (conflict_fn): Assert that the number of affine
3212         relations in the conflict function is valid.
3213
3214 2007-01-27  Ian Lance Taylor  <iant@google.com>
3215
3216         * common.opt: Add fstrict-overflow.
3217         * opts.c (decode_options): Set flag_strict_overflow if -O2.
3218         * flags.h (TYPE_OVERFLOW_WRAPS): Define.
3219         (TYPE_OVERFLOW_UNDEFINED): Define.
3220         (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
3221         Replace all uses.
3222         * tree.h (TYPE_TRAP_SIGNED): Don't define.
3223         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
3224         (fold_negate_expr): Likewise.
3225         (make_range): Likewise.
3226         (extract_muldiv_1): Likewise.
3227         (maybe_canonicalize_comparison): Likewise.
3228         (fold_comparison): Likewise.
3229         (fold_binary): Likewise.
3230         (tree_expr_nonnegative_p): Likewise.
3231         (tree_expr_nonzero_p): Likewise.
3232         * tree-vrp.c (compare_values): Likewise.
3233         (extract_range_from_binary_expr): Likewise.
3234         (extract_range_from_unary_expr): Likewise.
3235         * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
3236         Likewise.
3237         (nowrap_type_p): Likewise.
3238         * tree-scalar-evolution.c (simple_iv): Likewise.
3239         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
3240         (build_range_check): Likewise.
3241         (extract_muldiv_1): Likewise.
3242         (fold_comparison): Likewise.
3243         * tree-vrp.c (vrp_int_const_binop): Likewise.
3244         (extract_range_from_unary_expr): Likewise.
3245         * convert.c (convert_to_integer): Likewise.
3246         * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
3247         (fold_comparison): Likewise.
3248         (fold_binary): Likewise.
3249         * optabs.c (optab_for_tree_code): Likewise.
3250         * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
3251         * simplify-rtx.c (simplify_const_relational_operation): Check
3252         flag_strict_overflow and flag_trapv.
3253         (simplify_const_relational_operation): Likewise.
3254         * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
3255         (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
3256         -fstrict-overflow.
3257
3258 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3259
3260         * tree.c (tree_fold_gcd): Delete.
3261         * tree.h (tree_fold_gcd): Remove prototype.
3262         * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
3263         test whether one constant integer is a multiple of another.  Instead
3264         call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
3265         * fold-const.c (multiple_of_p):  We've determined both TOP and
3266         BOTTOM are integer constants so we can call int_const_binop directly
3267         instead of the more generic const_binop.
3268
3269 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3270
3271         * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
3272         1*X check that the constant hasn't overflowed, to preserve the
3273         TREE_OVERFLOW bit.
3274         (round_up): Provide an efficient implementation when rouding-up an
3275         INTEGER_CST to a power-of-two.
3276
3277 2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3278
3279         * doc/sourcebuild.texi: Add comma for clarity.
3280         * doc/extend.texi: Fix some typos.
3281         * doc/passes.texi: Likewise.
3282         * doc/cppinternals.texi: Likewise.
3283         * doc/c-tree.texi: Likewise.
3284         * doc/tree-ssa.texi: Likewise.
3285         * doc/install.texi: Likewise.
3286
3287 2007-01-27  Jan Hubicka  <jh@suse.cz>
3288
3289         * tree-sra.c (sra_walk_function): Don't rely on aliases being build.
3290         (pass_sra): Do not require alias information.
3291         * passes.c (init_optimization_passes): Add SRA
3292
3293 2007-01-27  Steven Bosscher  <steven@gcc.gnu.org>
3294
3295         * tracer.c (rest_of_handle_tracer): We already cleaned
3296         up the CFG in tracer() so don't do it here again.
3297         * cfgcleanup.c (rest_of_handle_jump2): Don't repeat
3298         cleanup_cfg here, either.  And don't call renumber_insns.
3299
3300         * cfgrtl.c (rtl_verify_flow_info_1): Don't verify that BB_END
3301         and BB_HEAD are in the insn stream here.  Instead make sure
3302         that BB_INSN is valid on all insns.  Also, do check here that
3303         there are no pending branch predictions...
3304         (rtl_verify_flow_info): ...instead of doing it here.  Checks
3305         for BB_END and BB_HEAD moved from rtl_verify_flow_info_1 to
3306         here.
3307
3308 2007-01-26  Roger Sayle  <roger@eyesopen.com>
3309
3310         * config/i386/i386.c (ix86_swap_binary_operands_p): New helper
3311         function to simplify/factorize operand order canonicalization.
3312         (ix86_fixup_binary_operands): Reorganize using the above function.
3313         (ix86_binary_operator_ok): Likewise.
3314
3315 2007-01-27  Jakub Jelinek  <jakub@redhat.com>
3316
3317         * genattrtab.c (struct attr_value_list, insn_code_values): Move to
3318         file scope from optimize_attrs.
3319         (simplify_test_exp): If insn_code_values is not NULL, use it to speed
3320         up search.
3321         (optimize_attrs): Clear insn_code_values after freeing it.
3322
3323 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3324
3325         * tree-ssa-address.c (create_mem_ref): Remove ", bsi" from
3326         a parts.base assignment.
3327
3328 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3329
3330         * tree-data-ref.c (dump_subscript): Use dump_conflict_function.
3331         (compute_subscript_distance, initialize_data_dependence_relation,
3332         finalize_ddr_dependent, analyze_ziv_subscript,
3333         analyze_siv_subscript_cst_affine,
3334         compute_overlap_steps_for_affine_univar,
3335         compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
3336         analyze_siv_subscript, analyze_miv_subscript,
3337         analyze_overlapping_iterations, subscript_dependence_tester_1,
3338         compute_self_dependence, free_dependence_relation): Work
3339         with affine_fn instead of chrecs.
3340         (dump_affine_function, dump_conflict_function, affine_function_equal_p,
3341         common_affine_function, affine_function_base,
3342         affine_function_constant_p, affine_fn_op, affine_fn_plus,
3343         affine_fn_minus, affine_fn_free, conflict_fn_not_known,
3344         conflict_fn_no_dependence, free_conflict_function, free_subscripts,
3345         conflict_fn, affine_fn_cst, affine_fn_univar): New functions.
3346         (all_chrecs_equal_p): Removed.
3347         * tree-data-ref.h (affine_fn, conflict_function): New types.
3348         (struct subscript): Change type of conflicting_iterations_in_a
3349         and conflicting_iterations_in_b.
3350
3351 2007-01-26  Steve Ellcey  <sje@cup.hp.com>
3352
3353         PR other/30182
3354         * config/pa/pa.h (TARGET_HPUX_11): New.
3355         * config/pa/pa-hpux11.h (TARGET_HPUX_11): New.
3356         * config/pa/pa.c (pa_init_builtins): Use TARGET_HPUX_11.
3357
3358 2007-01-26  Daniel Berlin  <dberlin@dberlin.org>
3359         Richard Guenther  <rguenther@suse.de>
3360
3361         * tree-ssa-structalias.c (solve_graph): Handle case
3362         we merged the variable to another.
3363
3364 2007-01-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3365
3366         * builtins.c (fold_builtin_1): Treat ccos and ccosh as 'even'
3367         functions.
3368
3369         * fold-const.c (negate_mathfn_p): Treat casin, casinh, catan,
3370         catanh, cproj, csin, csinh, ctan and ctanh as 'odd' functions.
3371
3372 2007-01-25  DJ Delorie  <dj@redhat.com>
3373
3374         * config/m32c/m32c.c (m32c_cannot_change_mode_class): We don't
3375         allow changes to modes which don't fit in those registers.
3376
3377         * reload1.c (choose_reload_regs): Check for invalid subregs before
3378         computing their locations, not after.
3379
3380 2007-01-25  Geoffrey Keating  <geoffk@apple.com>
3381
3382         PR 25127
3383         * config/rs6000/rs6000.c (first_altivec_reg_to_save): On Darwin,
3384         save Altivec registers in an eh_return function.
3385         (compute_vrsave_mask): Likewise.
3386         (rs6000_stack_info): Correct AIX/Darwin stack alignment computation
3387         for saving Altivec registers.
3388         (rs6000_emit_prologue): Don't allocate stack twice in
3389         eh_return function.  Correct expected value of altivec_save_offset
3390         when using save_world.  Describe save of R0 to stack when using
3391         save_world.  Describe stack pointer adjustment when using
3392         save_world.  Remove duplicated eh_return parameter register saving.
3393         Update sp_offset variable after save_world.
3394         * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA): Remove
3395         darwin-world.asm.
3396         (LIB2FUNCS_EXTRA): Add darwin-world.asm.
3397         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): -m64
3398         implies Altivec.
3399
3400 2007-01-25  Steve Ellcey  <sje@cup.hp.com>
3401
3402         * config.gcc (ia64*-*-hpux*): Make posix threads the default.
3403
3404 2007-01-25  Steve Ellcey  <sje@cup.hp.com>
3405
3406         PR other/30182
3407         * config/pa/pa.c (pa_init_builtins): Set asm names for finite routines.
3408         * config/ia64/ia64.c (ia64_init_builtins):  Ditto.
3409
3410 2007-01-25  Richard Guenther  <rguenther@suse.de>
3411
3412         * doc/invoke.texi (-Wcoverage-mismatch): Document.