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2007-02-21 Paul Brook <paul@codesourcery.com>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-02-21  Paul Brook  <paul@codesourcery.com>
2
3         * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
4         condexec_count when skipping USE and CLOBBER.
5
6 2007-02-21  Nick Clifton  <nickc@redhat.com>
7
8         * common.opt (Warray-bounds): Add Warning attribute.
9         (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
10         Likewise.
11         (fsized-zeroes): Add Optimization attribute.
12         (fsplit-wide-types, ftree-scev-cprop): Likewise.
13         * c.opt (Wc++0x-compat): Add Warning attribute.
14
15 2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>
16
17         PR middle-end/30761
18         * reload1.c (eliminate_regs_in_insn): In the single_set special
19         case, attempt to re-recognize the insn before falling back to
20         having reload fix it up.
21
22 2007-02-20  Eric Christopher  <echristo@gmail.com>
23
24         * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
25         Rewrite accordingly.
26         (frv_read_iacc_argument): Ditto.
27         (frv_expand_set_builtin): Take a call instead of arglist, update for
28         above changes.
29         (frv_expand_unop_builtin): Ditto.
30         (frv_expand_binop_builtin): Ditto.
31         (frv_expand_cut_builtin): Ditto.
32         (frv_expand_binopimm_builtin): Ditto.
33         (frv_expand_voidbinop_builtin): Ditto.
34         (frv_expand_int_void2arg): Ditto.
35         (frv_expand_prefetches): Ditto.
36         (frv_expand_voidtriop_builtin): Ditto.
37         (frv_expand_voidaccop_builtin): Ditto.
38         (frv_expand_load_builtin): Ditto.
39         (frv_expand_store_builtin): Ditto.
40         (frv_expand_mdpackh_builtin): Ditto.
41         (frv_expand_mclracc_builtin): Ditto.
42         (frv_expand_mrdacc_builtin): Ditto.
43         (frv_expand_mwtacc_builtin): Ditto.
44         (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
45         calls for above.
46
47 2007-02-20  Janis Johnson  <janis187@us.ibm.com>
48
49         * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
50         * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
51         cmpb instruction.
52         (HAVE_GAS_DFP): Check for assembler support of decimal floating
53         point instructions.
54         * configure: Regenerate.
55         * config.in: Regenerate.
56         * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
57         * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
58         masks to power6 and power6x and to POWERPC_MASKS.
59         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
60         _ARCH_PWR6.
61         * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
62         * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
63         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
64         Access PROTOTYPE as variable, not mask.
65
66 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
67
68         * rtl.h (remove_reg_equal_equiv_notes): New prototype.
69         * rtlanal.c (remove_reg_equal_equiv_notes): New function.
70         * combine.c (adjust_for_new_dest): Use it.
71         * postreload.c (reload_combine): Likewise.
72
73 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
74
75         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
76         notes on an insn with multiple sets, even if single_set returns
77         non-NULL for that insn.
78
79 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
80
81         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
82         scalbn and scalbln.
83
84 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
85
86         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
87         if user didn't pass it.
88         * config/i386/darwin.h (CC1_SPEC): Likewise.
89         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
90         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
91         -mmacosx-version-min.
92
93 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
94             Uros Bizjak  <ubizjak@gmail.com>
95
96         * optabs.h (enum optab_index): Add new OTI_scalb.
97         (scalb_optab): Define corresponding macro.
98         * optabs.c (init_optabs): Initialize scalb_optab.
99         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
100         patterns.
101         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
102         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
103         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
104         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
105         flag_unsafe_math_optimizations is set.
106
107         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
108         to implement scalbf, scalb and scalbl built-ins as inline x87
109         intrinsics.
110
111 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
112             DJ Delorie <dj@redhat.com>
113
114         PR other/30824
115         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
116         (diagnostic_report_diagnostic): ... here, and turn them into real
117         errors. If warnings are inhibited, no need to do anything.
118
119 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
120
121         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
122         better code generation.
123
124 2007-02-20  Ben Elliston  <bje@au.ibm.com>
125
126         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
127
128 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
129
130         * config/alpha/alpha.c, config/alpha/alpha.md,
131         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
132         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
133         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
134         config/arm/lib1funcs.asm: Follow spelling conventions.
135
136         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
137         config/fr30/fr30.md, config/i386/i386.h,
138         config/iq2000/iq2000.h, config/iq2000/predicates.md,
139         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
140         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
141         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
142         config/rs6000/altivec.md, config/rs6000/rs6000.c,
143         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
144         config/sparc/sparc.c, config/sparc/sparc.h,
145         config/sparc/sparc.md, config/spu/constraints.md,
146         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
147         conventions.
148
149 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
150
151         PR target/29943
152         * varasm.c (use_blocks_for_decl_p): Return false for decls with
153         alias attribute.
154
155 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
156
157         * doc/invoke.texi (-ftree-lrs): Remove.
158
159 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
160
161         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
162         NULL.
163
164 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
165
166         * config/ia64/ia64.c (ia64_expand_builtin): Use the
167         new CALL_EXPR_FN macro for retrieving the function
168         declaration of the input expression.
169
170 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
171
172         * c.opt (Waddress): New.
173         * common.opt (Walways-true): Delete.
174         (Wstring-literal-comparison): Delete.
175         * doc/invoke.texi (Warning Options): Delete -Walways-true and
176         -Wstring-literal-comparison. Add -Waddress.
177         (Waddress): New.
178         (Walways-true): Delete.
179         (Wstring-literal-comparison): Delete.
180         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
181         consistently instead of -Walways-true in example.
182         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
183         * c-typeck.c (parser_build_binary_op): Replace
184         -Wstring-literal-comparison and -Walways-true with -Waddress.
185         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
186         with -Waddress.
187
188 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
189
190         * tree-cfg.c (dump_function_to_file): Be prepared for functions
191         without DECL_STRUCT_FUNCTION initialized.
192
193 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
194
195         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
196         due to calls to functions taking pointers as parameters.
197
198 2007-02-19  Richard Henderson  <rth@redhat.com>
199
200         PR debug/29558
201         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
202         in memory.
203
204 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
205
206         * config/s390/s390.c (s390_call_saved_register_used,
207         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
208         accessed to the new scheme.
209
210 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
211
212         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
213         (cris_print_index, cris_print_operand, cris_print_operand_address)
214         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
215         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
216         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
217         GET_CODE () == xxx.
218         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
219         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
220         GO_IF_LEGITIMATE_ADDRESS): Ditto.
221         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
222         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
223         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
224         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
225         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
226         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
227         (uminsi3, call, call_value): Ditto.
228         (define_split: indir_to_reg_split, unnamed): Ditto.
229
230 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
231
232         PR tree-optimization/30975
233         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
234         wrong assert.
235
236 2007-02-18  Eric Christopher  <echristo@gmail.com>
237
238         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
239         Remove use of arglist.
240         (mips_expand_builtin): Remove use of arglist, pass in expr.
241         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
242         (mips_expand_builtin_movtf): Ditto.
243         (mips_expand_builtin_compare): Ditto.
244
245 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
246
247         * tree-sra.c (sra_build_assignment): Replace assertion
248         checking with a comment explaining why it can't be done.
249
250 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
251
252         PR middle-end/30833
253         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
254         during CALL_EXPR representation conversion.
255         * tree-ssa-propagate.c (set_rhs): Likewise.
256
257 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
258
259         * tree-sra.c (sra_build_assignment): Disable assertion checking
260         for now.
261
262 2007-02-18  Roger Sayle  <roger@eyesopen.com>
263
264         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
265         instead of calling build2 with a GIMPLE_MODIFY_STMT.
266         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
267         Likewise.
268         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
269         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
270         gimplify_init_ctor_eval_range, gimple_push_cleanup,
271         gimplify_omp_for, gimplify_omp_atomic_pipeline,
272         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
273         force_gimple_operand): Likewise.
274         * ipa-cp.c (constant_val_insert): Likewise.
275         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
276         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
277         perfect_nestify): Likewise.
278         * langhooks.c (lhd_omp_assignment): Likewise.
279         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
280         lower_copyprivate_clauses, lower_send_clauses,
281         lower_send_shared_vars, expand_parallel_call,
282         expand_omp_for_generic, expand_omp_for_static_nochunk,
283         expand_omp_for_static_chunk, expand_omp_sections,
284         lower_omp_single_copy, lower_omp_for_lastprivate,
285         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
286         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
287         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
288         Likewise.
289
290 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
291
292         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
293         config/sh/sh.md: Follow spelling conventions.
294
295         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
296         config/frv/predicates.md: Follow spelling conventions.
297
298         * config/m68k/linux-unwind.h: Fix a comment typo.
299         * target.h: Follow spelling conventions.
300
301 2007-02-18  Roger Sayle  <roger@eyesopen.com>
302
303         PR rtl-optimization/28173
304         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
305         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
306         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
307         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
308         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
309
310 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
311
312         * builtins.c (fold_builtin_load_exponent): New.
313         (fold_builtin_2): Use it.
314
315 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
316
317         PR rtl-optimization/30773
318         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
319         if we fail to attach a REG_EQUIV note.
320
321 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
322             Roger Sayle  <roger@eyesopen.com>
323
324         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
325
326 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
327
328         * calls.c (initialize_argument_information): Pass original EXP
329         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
330         code to split complex arguments here, as part of initializing the
331         ARGS array.
332         (expand_call): Remove code that builds a list of arguments and
333         inserts implicit arguments into it.  Instead, just count how many
334         implicit arguments there will be so we can determine the size of
335         the ARGS array, and let initialize_argument_information do the work.
336         (split_complex_values): Delete unused function.
337
338 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
339
340         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
341
342 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
343
344         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
345         for arg pointer based indexed addressing.
346
347 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
348
349         * config/ia64/ia64.h, config/ia64/ia64.md,
350         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
351         spelling conventions.
352
353 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
354
355         * config/m68k/m68k.c (split_di): New.
356         * config/m68k/m68k-protos.h: Declare split_di.
357         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
358           Improve predicate handling and split constant shifts.
359
360 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
361
362         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
363         parameter for register bitfield operations, general predicates
364         cleanup
365
366 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
367
368         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
369         * config/m68k/linux-unwind.h: New file.
370
371 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
372
373         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
374         config/i386/athlon.md, config/ia64/ia64.md,
375         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
376         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
377         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
378         tree-ssa-loop-niter.c, tree-vect-analyze.c,
379         tree-vect-transform.c: Fix comment typos.
380
381 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
382
383         * sched-deps.c (find_insn_list): Remove.
384         * sched-int.h: Remove the prototype for find_insn_list.
385
386 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
387
388         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
389         to linker.
390         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
391         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
392         darwin_rs6000_override_options.
393         (C_COMMON_OVERRIDE_OPTIONS): Expect
394         darwin_macosx_version_min to be non-NULL always.
395         (TARGET_C99_FUNCTIONS): Likewise.
396         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
397         (DARWIN_MINVERSION_SPEC): New.
398         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
399         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
400         to cc1*.
401         (DARWIN_MINVERSION_SPEC): New.
402         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
403         value.
404         * config/darwin-c.c (darwin_cpp_builtins): Expect
405         darwin_macosx_version_min to be non-NULL always.
406
407         * config/rs6000/rs6000.c: Clean up trailing whitespace.
408
409 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
410
411         * config/i386/i386.h (x86_use_xchgb): New.
412         (TARGET_USE_XCHGB): New macro.
413         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
414         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
415         Split after reload into bswaphi for shifts of 8.
416         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
417         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
418         or when optimizing for size.
419
420 2007-02-16  Richard Guenther  <rguenther@suse.de>
421             Christian Bruel  <christian.bruel@st.com>
422
423         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
424         DECLs but prefer SSA_NAMEs over DECLs.
425
426 2007-02-16  Richard Guenther  <rguenther@suse.de>
427
428         * tree-flow-inline.h (single_imm_use_p): Remove.
429         (zero_imm_uses_p): Likewise.
430         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
431         instead of single_imm_use_p.
432         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
433         zero_imm_uses_p.
434
435 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
436
437         PR other/27843
438         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
439         nested double- and backquotes.
440
441 2007-02-15  Roger Sayle  <roger@eyesopen.com>
442
443         PR middle-end/30391
444         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
445         should be unreachable.
446         (build2_stat): Allow construction of MODIFY_EXPR at any time.
447         For the time being redirect GIMPLE_MODIFY_STMT to the new
448         (renamed) build_gimple_modify_stmt_stat.
449         (build2_gimple_stat): Rename to...
450         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
451         Always build a GIMPLE_MODIFY_STMT node.
452         * tree.h (build2_gimple, build2_gimple_stat): Delete.
453         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
454         declarations.
455
456         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
457         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
458         * tree-complex.c (set_component_ssa_name, expand_complex_move,
459         expand_complex_div_wide): Likewise.
460         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
461         * tree-ssa-loop-im.c (schedule_sm): Likewise.
462         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
463         * tree-ssa-loop-manip.c (create_iv): Likewise.
464         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
465         abs_replacement): Likewise.
466         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
467         realify_fake_stores): Likewise.
468
469         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
470         node rather than a GIMPLE_MODIFY_STMT node.
471         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
472         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
473         Likewise.
474         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
475         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
476         GIMPLE_MODIFY_STMT.
477
478 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
479
480         PR middle-end/30433
481         * fold-const.c (fold_comparison): Add back the
482         folding of constant complex comparisions.
483
484 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
485
486         PR middle-end/30729
487         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
488         effects unknown to this function, return early.
489
490 2007-02-15  Ian Lance Taylor  <iant@google.com>
491
492         * lower-subreg.c (move_eh_region_note): New static function.
493         (resolve_simple_move): Call it.
494         (decompose_multiword_subregs): Track blocks for which we resolve a
495         simple move which is also a control flow insn.  Pass them to
496         find_many_sub_basic_blocks.
497         (pass_lower_subreg): Add TODO_verify_flow.
498         (pass_lower_subreg2): Likewise.
499
500 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
501             Brooks Moses  <brooks.moses@codesourcery.com>
502             Lee Millward  <lee.millward@codesourcery.com>
503
504         * tree.h (enum tree_code_class): Add tcc_vl_exp.
505         (VL_EXP_CLASS_P): New.
506         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
507         TREE_CODE_LENGTH.
508         (TREE_OPERAND_CHECK_CODE): Likewise.
509         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
510         (TREE_RTL_OPERAND_CHECK): Likewise.
511         (tree_operand_check_failed): Make second parameter the whole tree
512         instead of its code.  Fixed callers.
513         (VL_EXP_CHECK): New.
514         (TREE_OPERAND_LENGTH): New.
515         (VL_EXP_OPERAND_LENGTH): New.
516         (CALL_EXPR_FN): New.
517         (CALL_EXPR_STATIC_CHAIN): New.
518         (CALL_EXPR_ARGS): New.
519         (CALL_EXPR_ARG): New.
520         (call_expr_nargs): New.
521         (CALL_EXPR_ARGP): New.
522         (build_nt_call_list): Declare.
523         (build_vl_exp_stat): Declare.
524         (build_vl_exp): New.
525         (build_call_list): Declare.
526         (build_call_nary): Declare.
527         (build_call_valist): Declare.
528         (build_call_array): Declare.
529         (call_expr_arg): Declare.
530         (call_expr_argp): Declare.
531         (call_expr_arglist): Declare.
532         (fold_build_call_list): Declare.
533         (fold_build_call_list_initializer): Declare.
534         (fold_call_expr): Declare to replace fold_builtin.
535         (fold_builtin_fputs): Update to agree with modified definition.
536         (fold_builtin_strcpy): Likewise.
537         (fold_builtin_strncpy): Likewise.
538         (fold_builtin_memory_chk): Likewise.
539         (fold_builtin_stxcpy_chk): Likewise.
540         (fold_builtin_strncpy_chk): Likewise.
541         (fold_builtin_next_arg): Likewise.
542         (fold_build_call_expr): Declare.
543         (fold_builtin_call_list): Declare.
544         (fold_builtin_call_valist): Declare.
545         (build_call_expr): Declare.
546         (validate_arglist): Update to agree with modified definition.
547         (tree_operand_length): New.
548         (call_expr_arg_iterator): New.
549         (init_call_expr_arg_iterator): New.
550         (next_call_expr_arg): New.
551         (first_call_expr_arg): New.
552         (more_call_expr_args_p): New.
553         (FOR_EACH_CALL_EXPR_ARG): New.
554
555         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
556         and tcc_gimple_stmt.
557         (tree_code_size): Update documentation.  Use sizeof (tree) rather
558         than sizeof (char *).
559         (tree_size): Likewise.  Add case for tcc_vl_exp.
560         (tree_node_structure): Add case for tcc_vl_exp.
561         (contains_placeholder_p): Likewise.
562         (substitute_in_expr): Likewise.
563         (substitute_placeholder_in_expr): Likewise.
564         (stabilize_reference_1): Likewise.
565         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
566         to diagnose breakage of this interface for constructing CALL_EXPRs.
567         (build_nt): Add similar assertion here.
568         (build_nt_call_list): New.
569         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
570         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
571         TREE_CODE_LENGTH.
572         (get_callee_fndecl): Use new CALL_EXPR accessors.
573         (tree_operand_check_failed): Change parameters to pass entire node
574         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
575         (process_call_operands): New.
576         (build_vl_exp_stat): New.
577         (build_call_list): New.
578         (build_call_nary): New.
579         (build_call_valist): New.
580         (build_call_array): New.
581         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
582         (call_expr_arglist): New.
583
584         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
585         tcc_vl_exp instead of a fixed-size tcc_expression.
586
587         * doc/c-tree.texi (CALL_EXPR): Document new representation and
588         accessors for CALL_EXPRs.
589         (AGGR_INIT_EXPR): Likewise.
590
591 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
592             Brooks Moses  <brooks.moses@codesourcery.com>
593             Lee Millward  <lee.millward@codesourcery.com>
594
595         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
596         (expand_builtin_nonlocal_goto): Change parameter to be entire
597         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
598         (expand_builtin_prefetch): Likewise.
599         (expand_builtin_classify_type): Likewise.
600         (mathfn_built_in): Return NULL_TREE instead of 0.
601         (expand_errno_check): Use new CALL_EXPR accessors.
602         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
603         Return NULL_RTX instead of 0.
604         (expand_builtin_mathfn_2): Likewise.
605         (expand_builtin_mathfn_3): Likewise.
606         (expand_builtin_interclass_mathfn): Likewise.
607         (expand_builtin_sincos): Likewise.
608         (expand_builtin_cexpi): Likewise.
609         (expand_builtin_int_roundingfn): Likewise.
610         (expand_builtin_int_roundingfn_2): Likewise.
611         (expand_builtin_pow): Likewise.
612         (expand_builtin_powi): Likewise.
613         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
614         of arglist, fixing callers appropriately.  Use new CALL_EXPR
615         accessors and constructors.  Return NULL_RTX instead of 0.
616         (expand_builtin_strstr): Likewise.
617         (expand_builtin_strchr): Likewise.
618         (expand_builtin_strrchr): Likewise.
619         (expand_builtin_strpbrk): Likewise.
620         (expand_builtin_memcpy): Likewise.
621         (expand_builtin_mempcpy): Likewise.
622         (expand_builtin_mempcpy_args): New.
623         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
624         (expand_builtin_memmove_args): New.
625         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
626         (expand_movstr): Likewise.
627         (expand_builtin_strcpy): Likewise.
628         (expand_builtin_strcpy_args): New.
629         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
630         (expand_builtin_strncpy): Likewise.
631         (expand_builtin_memset): Likewise.
632         (expand_builtin_memset_args): New.
633         (expand_builtin_bzero): Similarly to expand_builtin_memset.
634         (expand_builtin_memcmp): Likewise.
635         (expand_builtin_strcmp): Likewise.
636         (expand_builtin_strncmp): Likewise.
637         (expand_builtin_strcat): Likewise.
638         (expand_builtin_strncat): Likewise.
639         (expand_builtin_strspn): Likewise.
640         (expand_builtin_strcspn): Likewise.
641         (expand_builtin_args_info): Likewise.
642         (expand_builtin_va_start): Likewise.
643         (gimplify_va_arg_expr): Likewise.
644         (expand_builtin_va_end): Likewise.
645         (expand_builtin_va_copy): Likewise.
646         (expand_builtin_frame_address): Likewise.
647         (expand_builtin_alloca): Likewise.
648         (expand_builtin_bswap): Likewise.
649         (expand_builtin_unop): Likewise.
650         (expand_builtin_fputs): Likewise.
651         (expand_builtin_expect): Likewise.
652         (expand_builtin_fabs): Likewise.
653         (expand_builtin_copysign): Likewise.
654         (expand_builtin_printf): Likewise.
655         (expand_builtin_fprintf): Likewise.
656         (expand_builtin_sprintf): Likewise.
657         (expand_builtin_init_trampoline): Likewise.
658         (expand_builtin_signbit): Likewise.
659         (expand_builtin_fork_or_exec): Likewise.
660         (expand_builtin_sync_operation): Likewise.
661         (expand_builtin_compare_and_swap): Likewise.
662         (expand_builtin_lock_test_and_set): Likewise.
663         (expand_builtin_lock_release): Likewise.
664         (expand_builtin): Likewise.
665         (builtin_mathfn_code): Likewise.
666
667         (fold_builtin_constant_p): Pass call arguments individually instead
668         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
669         accessors and constructors.  Return NULL_TREE instead of 0.
670         (fold_builtin_expect): Likewise.
671         (fold_builtin_classify_type): Likewise.
672         (fold_builtin_strlen): Likewise.
673         (fold_builtin_nan): Likewise.
674         (integer_valued_real_p): Likewise.
675         (fold_trunc_transparent_mathfn): Likewise.
676         (fold_fixed_mathfn): Likewise.
677         (fold_builtin_cabs): Likewise.
678         (fold_builtin_sqrt): Likewise.
679         (fold_builtin_cbrt): Likewise.
680         (fold_builtin_cos): Likewise.
681         (fold_builtin_cosh): Likewise.
682         (fold_builtin_tan): Likewise.
683         (fold_builtin_sincos): Likewise.
684         (fold_builtin_cexp): Likewise.
685         (fold_builtin_trunc): Likewise.
686         (fold_builtin_floor): Likewise.
687         (fold_builtin_ceil): Likewise.
688         (fold_builtin_round): Likewise.
689         (fold_builtin_int_roundingfn): Likewise.
690         (fold_builtin_bitop): Likewise.
691         (fold_builtin_bswap): Likewise.
692         (fold_builtin_logarithm): Likewise.
693         (fold_builtin_hypot): Likewise.
694         (fold_builtin_pow): Likewise.
695         (fold_builtin_powi): Likewise.
696         (fold_builtin_exponent): Likewise.
697         (fold_builtin_memset): Likewise.
698         (fold_builtin_bzero): Likewise.
699         (fold_builtin_memory_op): Likewise.
700         (fold_builtin_bcopy): Deleted; call site changed to invoke
701         fold_builtin_memory_op directly.
702         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
703         (fold_builtin_strncpy): Likewise.
704         (fold_builtin_memcmp): Likewise.
705         (fold_builtin_strcmp): Likewise.
706         (fold_builtin_strncmp): Likewise.
707         (fold_builtin_signbit): Likewise.
708         (fold_builtin_copysign): Likewise.
709         (fold_builtin_isascii): Likewise.
710         (fold_builtin_toascii): Likewise.
711         (fold_builtin_isdigit): Likewise.
712         (fold_builtin_fabs): Likewise.
713         (fold_builtin_abs): Likewise.
714         (fold_builtin_fmin_fmax): Likewise.
715         (fold_builtin_carg): Likewise.
716         (fold_builtin_classify): Likewise.
717         (fold_builtin_unordered_cmp): Likewise.
718
719         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
720         New functions split out from fold_builtin_1.
721         (fold_builtin_n): New.
722         (fold_builtin_varargs): New.
723         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
724         instead.
725         (fold_call_expr): New.
726         (build_function_call_expr): Rewrite to use new helper function.
727         (fold_builtin_call_list): New.
728         (build_call_expr): New.
729         (fold_builtin_call_valist): New.
730         (rewrite_call_expr): New.
731         (validate_arg): New.
732         (validate_arglist): Change parameter to be entire CALL_EXPR instead
733         of an arglist.  Change return type to bool.  Use new CALL_EXPR
734         accessors.
735
736         (fold_builtin_strstr):  Pass call arguments individually instead
737         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
738         accessors and constructors.  Return NULL_TREE instead of 0.
739         (fold_builtin_strchr): Likewise.
740         (fold_builtin_strrchr): Likewise.
741         (fold_builtin_strpbrk): Likewise.
742         (fold_builtin_strcat): Likewise.
743         (fold_builtin_strncat): Likewise.
744         (fold_builtin_strspn): Likewise.
745         (fold_builtin_strcspn): Likewise.
746         (fold_builtin_fputs): Likewise.
747         (fold_builtin_next_arg): Likewise.
748         (fold_builtin_sprintf): Likewise.
749
750         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
751         NULL_RTX instead of 0.
752         (expand_builtin_memory_chk): Likewise.
753         (maybe_emit_chk_warning): Likewise.
754         (maybe_emit_sprintf_chk_warning): Likewise.
755
756         (fold_builtin_object_size): Pass call arguments individually instead
757         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
758         accessors and constructors.  Return NULL_TREE instead of 0.
759         (fold_builtin_memory_chk): Likewise.
760         (fold_builtin_stxcpy_chk): Likewise.
761         (fold_builtin_strncpy_chk): Likewise.
762         (fold_builtin_strcat_chk): Likewise.
763         (fold_builtin_strcat_chk): Likewise.
764         (fold_builtin_strncat_chk): Likewise.
765         (fold_builtin_sprintf_chk): Likewise.
766         (fold_builtin_snprintf_chk): Likewise.
767         (fold_builtin_printf): Likewise.
768         (fold_builtin_vprintf): Likewise.
769
770         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
771         constructors.
772         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
773         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
774         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
775         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
776         (fold_unary): Likewise.
777         (fold_binary): Likewise.
778         (fold_ternary): Remove CALL_EXPR case, since they are no longer
779         ternary expressions.
780         (fold): Add logic for tcc_vl_exp.
781         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
782         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
783         (fold_build3_stat): Add assertion to flag broken interface for
784         constructing CALL_EXPRs.
785         (fold_build_call_list): New.
786         (fold_build_call_list_initializer): New.
787         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
788         constructors.
789         (fold_strip_sign_ops): Likewise.
790
791 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
792             Brooks Moses  <brooks.moses@codesourcery.com>
793             Lee Millward  <lee.millward@codesourcery.com>
794
795         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
796         accessors and dump arguments explicitly.
797
798         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
799         TREE_CODE_LENGTH.
800         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
801         explicitly.
802         (print_call_name): Use new CALL_EXPR accessors.
803
804         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
805         CALL_EXPR arguments explicitly instead of as a list.  Use
806         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
807
808         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
809         (vrp_visit_stmt): Likewise.
810
811         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
812         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
813         TREE_CODE_LENGTH.
814         (force_move_till_expr): Likewise.
815
816         * targhooks.c (default_external_stack_protect_fail): Use
817         build_call_expr instead of build_function_call_expr.
818         (default_hidden_stack_protect_fail): Likewise.
819
820         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
821         build the call.
822
823         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
824         and walk arguments explicitly.
825
826         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
827         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
828         (expand_simple_operations): Likewise.
829         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
830
831         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
832         of TREE_CODE_LENGTH.
833         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
834
835         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
836         instead of TREE_CODE_LENGTH.
837
838         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
839         (tree_ic_transform): Likewise.
840         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
841         parameter instead of arglist.  Fix callers.
842         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
843         (tree_stringops_transform): Likewise.
844         (tree_indirect_call_to_profile): Likewise.
845         (tree_stringops_values_to_profile): Likewise.
846
847         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
848         (eliminate_tail_call): Likewise.
849
850         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
851
852         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
853         Use TREE_OPERAND_LENGTH and generalize to handle any number of
854         operands.
855         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
856
857         * omp-low.c (build_omp_barrier): Use build_call_expr.
858         (lower_rec_input_clauses): Likewise.
859         (lower_reduction_clauses): Likewise.
860         (expand_parallel_call): Likewise.
861         (maybe_catch_exception): Likewise.
862         (expand_omp_for_generic): Likewise.
863         (expand_omp_for_static_nochunk): Likewise.
864         (expand_omp_sections): Likewise.
865         (lower_omp_single_simple): Likewise.
866         (lower_omp_single_copy): Likewise.
867         (lower_omp_master): Likewise.
868         (lower_omp_ordered): Likewise.
869         (lower_omp_critical): Likewise.
870
871         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
872         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
873
874         * tree-gimple.c (is_gimple_call_addr): Fix doc.
875         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
876         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
877
878         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
879         and generalize to handle any number of operands.
880         (chrec_contains_undetermined): Likewise.
881         (tree_contains_chrecs): Likewise.
882         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
883
884         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
885
886         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
887         fold_call_expr instead of fold_builtin.
888         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
889         match declarations there.
890         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
891         updates.
892
893         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
894         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
895
896         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
897         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
898
899         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
900         accessors.
901
902         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
903         (execute_cse_sincos): Use new CALL_EXPR accessors.
904
905         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
906
907         * gimple-low.c (lower_function_body): Use build_call_expr.
908         (lower_builtin_setjmp): Likewise.
909
910         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
911         (set_storage_via_libcall): Likewise.
912         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
913         instead of TREE_CODE_LENGTH.
914         (expand_expr_real_1): Use new CALL_EXPR accessors.
915
916         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
917         generalize to handle any number of operands.
918         (TB_parent_eq): Likewise.
919
920         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
921         (strip_builtin_expect): Likewise.
922
923         * function.c (gimplify_parameters): Use build_call_expr.
924
925         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
926         instead of TREE_CODE_LENGTH.
927
928         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
929         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
930
931         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
932         iterators.
933
934         * gimplify.c (build_stack_save_restore): Use build_call_expr.
935         (gimplify_decl_expr): Likewise.
936         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
937         Use new CALL_EXPR iterators.
938         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
939         (gimplify_modify_expr_to_memset): Likewise.
940         (gimplify_variable_sized_compare): Likewise.
941         (gimplify_omp_atomic_fetch_op): Likewise.
942         (gimplify_omp_atomic_pipeline): Likewise.
943         (gimplify_omp_atomic_mutex): Likewise.
944         (gimplify_function_tree): Likewise.
945
946         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
947         (call_expr_flags): Likewise.
948         (expand_call): Likewise.
949
950         * except.c (expand_builtin_eh_return_data_regno): Pass entire
951         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
952         accessors.
953
954         * coverage.c (create_coverage): Use build_call_expr.
955
956         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
957         (temp_call_expr_obstack): New.
958         (pool_copy_list): Delete.
959         (temp_copy_call_expr): New.
960         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
961         CALL_EXPR accessors.  Get rid of special goo for copying argument
962         lists and use temp_copy_call_expr instead.
963         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
964         CALL_EXPR accessors.
965         (create_expression_by_pieces): Likewise.  Use build_call_array
966         to construct the result instead of fold_build3.
967         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
968         dealing with argument lists.
969         (init_pre): Remove references to expression_node_pool and
970         list_node_pool.  Init temp_call_expr_obstack instead.
971         (fini_pre): Remove references to expression_node_pool and
972         list_node_pool.
973
974         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
975         and walk arguments explicitly instead of as a list.
976
977         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
978         (mx_register_decls): Likewise.
979         (mudflap_register_call): Likewise.
980         (mudflap_finish_file): Likewise.
981
982         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
983         (ipa_callsite_compute_param): Likewise.
984
985         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
986         accessors and constructor.
987
988         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
989         accessors and constructor.
990         (convert_tramp_reference): Likewise.
991         (convert_call_expr): Likewise.
992         (finalize_nesting_tree_1): Likewise.
993
994         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
995         accessors.
996
997         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
998
999         * tree-inline.c (initialize_inlined_parameters): Pass entire
1000         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
1001         accessors.
1002         (estimate_num_insns_1): Use new CALL_EXPR accessors.
1003         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
1004
1005         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
1006         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1007         (vectorizable_reduction): Likewise.
1008         (vectorizable_call): Use new CALL_EXPR iterators.
1009         (vectorizable_conversion): Use build_call_expr.
1010         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
1011         (vect_gen_widened_results_half): Use build_call_expr.
1012         (vect_setup_realignment): Likewise.
1013         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
1014
1015         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
1016         (pass_through_call): Likewise.
1017         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
1018         fold_builtin.
1019
1020         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
1021         (tree_gen_pow2_profiler): Likewise.
1022         (tree_gen_one_value_profiler): Likewise.
1023         (tree_gen_ic_func_profiler): Likewise.
1024         (tree_gen_average_profiler): Likewise.
1025         (tree_gen_ior_profiler): Likewise.
1026
1027         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
1028         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
1029         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1030
1031         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
1032         of TREE_CODE_LENGTH.
1033
1034         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
1035         of TREE_CODE_LENGTH.
1036
1037         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
1038         constructor.
1039         (convert_to_integer): Likewise.
1040
1041         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
1042         accessors.
1043
1044 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1045             Brooks Moses  <brooks.moses@codesourcery.com>
1046             Lee Millward  <lee.millward@codesourcery.com>
1047
1048         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
1049         accessors.
1050         * config/frv/frv.c (frv_expand_builtin): Likewise.
1051         * config/s390/s390.c (s390_expand_builtin): Likewise.
1052
1053         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
1054         (sparc_expand_builtin): Use new CALL_EXPR accessors.
1055
1056         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
1057         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
1058         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
1059         (ix86_expand_store_builtin): Likewise.
1060         (ix86_expand_unop_builtin): Likewise.
1061         (ix86_expand_unop1_builtin): Likewise.
1062         (ix86_expand_sse_compare): Likewise.
1063         (ix86_expand_sse_comi): Likewise.
1064         (ix86_expand_vec_init_builtin): Likewise.
1065         (ix86_expand_vec_ext_builtin): Likewise.
1066         (ix86_expand_vec_set_builtin): Likewise.
1067         (ix86_expand_builtin): Use new CALL_EXPR accessors.
1068
1069         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
1070         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
1071
1072         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
1073         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1074         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
1075
1076         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
1077         build_call_expr.
1078         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
1079         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
1080         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1081         (altivec_expand_abs_builtin): Likewise.
1082         (rs6000_expand_binop_builtin): Likewise.
1083         (altivec_expand_predicate_builtin): Likewise.
1084         (altivec_expand_lv_builtin): Likewise.
1085         (spe_expand_stv_builtin): Likewise.
1086         (altivec_expand_stv_builtin): Likewise.
1087         (rs6000_expand_ternop_builtin): Likewise.
1088         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
1089         (altivec_expand_st_builtin): Likewise.
1090         (altivec_expand_dst_builtin): Likewise.
1091         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
1092         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1093         (altivec_expand_vec_set_builtin): Likewise.
1094         (altivec_expand_vec_ext_builtin): Likewise.
1095         (altivec_expand_builtin): Use new CALL_EXPR accessors.
1096         (spe_expand_builtin): Likewise.
1097         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
1098         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1099         (spe_expand_evsel_builtin): Likewise.
1100         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
1101         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
1102
1103         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
1104         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1105         (arm_expand_unop_builtin): Likewise.
1106         (arm_expand_builtin): Use new CALL_EXPR accessors.
1107
1108         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
1109         accessors.
1110
1111         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
1112         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1113         (bfin_expand_unop_builtin): Likewise.
1114         (bfin_expand_builtin): Use new CALL_EXPR accessors.
1115
1116 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1117             Brooks Moses  <brooks.moses@codesourcery.com>
1118             Lee Millward  <lee.millward@codesourcery.com>
1119
1120         * c-semantics.c (build_stmt): Add internal diagnostic check.
1121
1122         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
1123         accessors.  Print arguments explicitly instead of as a list.
1124
1125         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
1126
1127         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
1128         (c_finish_omp_flish): Likewise.
1129
1130         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
1131         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
1132         instead of TREE_CODE_LENGTH.
1133         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
1134         (c_warn_unused_result): Likewise.
1135
1136 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1137
1138         PR c/26494
1139         * doc/invoke.texi (Warning Options): Remove
1140         -Werror-implicit-function-declaration.
1141         (Wimplicit-function-declaration): Update description.
1142         * opts.c (common_handle_option): Move handling of -Werror=* to...
1143         (enable_warning_as_error): ...here.
1144         * opts.h (enable_warning_as_error): Declare.
1145         * c-decl.c (implicit_decl_warning): Unless
1146         -Wno-implicit-function-declaration is given, emit a pedwarn if
1147         -std=c99 or emit a warning if -Wimplicit-function-declaration.
1148         * c.opt (Wimplicit-function-declaration): Replace
1149         mesg_implicit_function_declaration with
1150         warn_implicit_function_declaration.
1151         * c-opts.c (c_common_handle_option):
1152         -Werror-implicit-function-declaration is exactly equal as
1153         -Werror=implicit-function-declaration.
1154         (set_Wimplicit): Replace mesg_implicit_function_declaration with
1155         warn_implicit_function_declaration.
1156         (c_common_post_options): -Wimplict-function-declaration is enabled
1157         by default by -std=c99, otherwise is disabled by default.
1158         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
1159
1160 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1161
1162         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
1163         DECL on the rhs to a DECL on the lhs for debug info purposes if the
1164         former is ignored but not the latter.
1165
1166 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1167
1168         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
1169         is made and the reference doesn't use the alias set of its type,
1170         do not create the temporary using that type.
1171
1172 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
1173
1174         * jump.c: Remove prototypes for delete_computation and
1175         delete_prior_computation.
1176
1177 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1178
1179         * jump.c (get_label_after): Delete.
1180         (get_label_before, delete_computation, delete_jump,
1181         delete_prior_computation, follow_jumps): Move...
1182         * reorg.c (delete_computation, delete_prior_computation): ... here...
1183         (get_label_before, delete_jump): ... making these static ...
1184         (follow_jumps): ... and simplifying this since it only runs after
1185         reload.
1186         * rtl.h (get_label_after, get_label_before, delete_jump,
1187         follow_jumps): Delete prototypes.
1188
1189 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1190
1191         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1192
1193 2007-02-15  Nick Clifton  <nickc@redhat.com>
1194
1195         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
1196         order to prevent it from being munged by the target.
1197
1198 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
1199
1200         * config/i386/i386.md: Remove misleading comment.
1201
1202 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1203
1204         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
1205         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
1206         invalid patterns.
1207
1208 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1209
1210         * tree-sra.c (instantiate_missing_elements): Canonicalize
1211         bit-field types.
1212         (sra_build_assignment): New.
1213         (generate_copy_inout, generate_element_copy,
1214         generate_element_zero, generate_one_element_init): Use it.
1215
1216 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1217
1218         * tree-sra.c (instantiate_missing_elements): Canonicalize
1219         bit-field types.
1220         (sra_build_assignment): New.
1221         (generate_copy_inout, generate_element_copy,
1222         generate_element_zero, generate_one_element_init): Use it.
1223
1224 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1225
1226         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
1227         limbo die nodes.
1228
1229 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
1230
1231         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
1232         types as aggregates not scalars.
1233         * function.c (assign_stack_temp_for_type): Likewise.
1234
1235 2007-02-14  Roger Sayle  <roger@eyesopen.com>
1236             Zdenek Dvorak  <dvorakz@suse.cz>
1237
1238         * tree-dump.c (dump_switch_p_1): Require exact match of the option
1239         name.
1240
1241 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
1242
1243         * passes.c (next_pass_1): Clear the next field of the copied
1244         pass structure.
1245
1246 2007-02-14  Richard Henderson  <rth@redhat.com>
1247
1248         * tree-sra.c (early_sra): New.
1249         (decl_can_be_decomposed_p): Deny va_list if early_sra.
1250         (tree_sra_early, pass_sra_early): New.
1251         * tree-pass.h (pass_sra_early): Declare.
1252         * passes.c (init_optimization_passes): Use it.
1253
1254 2007-02-14  Richard Guenther  <rguenther@suse.de>
1255
1256         * flags.h (issue_strict_overflow_warning): Convert to a macro.
1257
1258 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
1259
1260          PR tree-optimization/30771
1261         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
1262         also phi nodes.
1263         (vect_analyze_operations): Induction phis can now be marked as
1264         used_in_loop.
1265         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
1266         Update documentation accordingly.
1267
1268 2007-02-14  Nick Clifton  <nickc@redhat.com>
1269
1270         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
1271         most 3 arguments are supported.
1272         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
1273
1274 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
1275
1276         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1277         Ensure dst->current is valid.
1278
1279 2007-02-13  Paul Brook  <paul@codesourcery.com>
1280
1281         * config.gcc: Add arm*-*-uclinux-*eabi.
1282         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
1283         (SUBTARGET_EXTRA_LINK_SPEC): Define.
1284         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
1285         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
1286         (LINK_SPEC): Define.
1287         (LIB_SPEC): Define.
1288         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
1289         register.
1290         * config/arm/uclinux-eabi.h: New file.
1291         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
1292         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
1293         based targets.
1294
1295 2007-02-13  Ian Lance Taylor  <iant@google.com>
1296
1297         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
1298         * flags.h (warn_strict_overflow): Declare.
1299         (enum warn_strict_overflow_code): Define.
1300         (issue_strict_overflow_warning): New static inline function.
1301         * opts.c (warn_strict_overflow): New variable.
1302         (common_handle_option): Handle OPT_Wstrict_overflow and
1303         OPT_Wstrict_overflow_.
1304         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
1305         OPT_Wall.
1306         * fold-const.c: Include intl.h.
1307         (fold_deferring_overflow_warnings): New static variable.
1308         (fold_deferred_overflow_warning): New static variable.
1309         (fold_deferred_overflow_code): New static variable.
1310         (fold_defer_overflow_warnings): New function.
1311         (fold_undefer_overflow_warnings): New function.
1312         (fold_undefer_and_ignore_overflow_warnings): New function.
1313         (fold_deferring_overflow_warnings_p): New function.
1314         (fold_overflow_warning): New static function.
1315         (make_range): Add strict_overflow_p parameter.  Change all
1316         callers.
1317         (extract_muldiv, extract_muldiv_1): Likewise.
1318         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
1319         tree_expr_nonnegative_p.
1320         (fold_negate_expr): Call fold_overflow_warning.
1321         (fold_range_test): Likewise.
1322         (fold_comparison): Likewise.
1323         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
1324         instead of tree_expr_nonnegative_p.
1325         (tree_expr_nonnegative_warnv_p): Rename from
1326         tree_expr_nonnegative_p, add strict_overflow_p parameter.
1327         (tree_expr_nonnegative_p): New function.
1328         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
1329         strict_overflow_p parameter.
1330         (tree_expr_nonzero_p): New function.
1331         * passes.c (verify_interpass_invariants): New static function.
1332         (execute_one_pass): Call it.
1333         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
1334         warnings.
1335         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
1336         (estimate_numbers_of_iterations): Likewise.
1337         (scev_probably_wraps_p): Likewise.
1338         * tree-ssa-ccp.c: Include "toplev.h".
1339         (evaluate_stmt): Defer fold overflow warnings until we know we are
1340         going to optimize.
1341         (struct fold_stmt_r_data): Add stmt field.
1342         (fold_stmt_r): Defer fold overflow warnings until we know we
1343         optimized.
1344         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
1345         (fold_stmt_inplace): Likewise.
1346         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
1347         (cleanup_control_expr_graph): Defer fold overflow warnings until
1348         we know we are going to optimize.
1349         * tree-cfg.c (fold_cond_expr_cond): Likewise.
1350         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
1351         Likewise.
1352         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
1353         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
1354         * tree-ssa-loop-manip.c (create_iv): Likewise.
1355         * c-typeck.c (build_conditional_expr): Likewise.
1356         (build_binary_op): Likewise.
1357         * tree-vrp.c (vrp_expr_computes_nonzero): Call
1358         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
1359         (extract_range_from_unary_expr): Likewise.
1360         * simplify-rtx.c (simplify_const_relational_operation): Warn when
1361         assuming that signed overflow does not occur.
1362         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
1363         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
1364         (fold_defer_overflow_warnings): Declare.
1365         (fold_undefer_overflow_warnings): Declare.
1366         (fold_undefer_and_ignore_overflow_warnings): Declare.
1367         (fold_deferring_overflow_warnings_p): Declare.
1368         (tree_expr_nonzero_warnv_p): Declare.
1369         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
1370         of warning options.
1371         (Warning Options): Document -Wstrict-overflow.
1372         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
1373         (tree-ssa-ccp.o): Likewise.
1374         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
1375         (fold-const.o): Depend on intl.h.
1376
1377 2007-02-13  Ian Lance Taylor  <iant@google.com>
1378
1379         PR middle-end/30751
1380         * lower-subreg.c (resolve_simple_move): Decompose subregs in
1381         addresses.
1382
1383 2007-02-13  Stuart Hastings  <stuart@apple.com>
1384
1385         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
1386
1387 2007-02-13  Richard Henderson  <rth@redhat.com>
1388
1389         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
1390         handled_component_p before looking for the indirect_ref.
1391
1392 2007-02-13  Richard Henderson  <rth@redhat.com>
1393
1394         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
1395         remove flags clobber.
1396         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
1397         (bswaphi_lowpart): New.
1398         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
1399         remove TARGET_BSWAP test.  Delete expander of the same name.
1400
1401         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
1402         (expand_unop): Use them.
1403
1404 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
1405
1406         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
1407         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
1408         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
1409         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
1410         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
1411         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
1412         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
1413         assembler dialect choice from asm templates.
1414
1415 2007-02-12  Richard Henderson  <rth@redhat.com>
1416
1417         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
1418         (fixuns_trunc<SSEMODEF>si2): Use it.
1419         * config/i386/sse.md (vec_setv4sf_0): Export.
1420         * config/i386/i386.c (ix86_build_const_vector): Export.
1421         (ix86_split_convert_uns_si_sse): Rename from
1422         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
1423         * config/i386/i386-protos.h: Update.
1424
1425 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1426
1427         PR c/29521
1428         * c-typeck.c (c_finish_return): Improve warning message.
1429
1430 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1431
1432         * alias.c (find_symbolic_term): Delete unused function.
1433
1434 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
1435
1436         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
1437         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
1438         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
1439
1440 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1441
1442         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
1443         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
1444         the function, temporarily point the debug interface to the null one.
1445
1446 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1447
1448         * dwarf2out.c (round_up_to_align): New static function.
1449         (field_byte_offset): Use it to round the offset.
1450
1451 2007-02-12  Richard Henderson  <rth@redhat.com>
1452
1453         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
1454         (inswl_const): Export.
1455
1456 2007-02-12  Richard Henderson  <rth@redhat.com>
1457
1458         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
1459         result mode of the libcall, convert back to outmode.
1460
1461 2007-02-12  Roger Sayle  <roger@eyesopen.com>
1462
1463         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
1464         (bswapdi2): New define_expand to implement 32-bit implementation.
1465
1466 2007-02-12  Nick Clifton  <nickc@redhat.com>
1467
1468         * doc/invoke.texi (Overall Options): Document --help=.
1469         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
1470         (cc1_options): Pass --help= on to cc1.
1471         (display_help): Add description of --help=.
1472         (process_command): Add code to handle --help=.  Allow translated
1473         --help and --target-help switches to be passed on to compiler
1474         sub-process.
1475         (main): Remove unused if statement.
1476         * opts.c (columns): Remove.
1477         (LEFT_COLUMN): Define.
1478         (wrap_help): Add columns argument.
1479         (print_filtered_help): Change parameters to be an include bitmask,
1480         an exclude bitmask, an any bitmask and the column width.  Move the
1481         code to display the params list here.  Add code to display the
1482         status of options rather than their descriptions if the quiet flag
1483         is not active.
1484         (print_specific_help): Change parameters to be an include bitmask,
1485         an exclude bitmask and an any bitmask.  Move code to look up the
1486         column width here.  Decide upon the title for an options listing.
1487         (common_handle_options): Add code to handle --help=.  Adapt code
1488         for --help and --target-help to use the revised form of the
1489         print_specific_help function.
1490         (print_help): Delete.
1491         (print_param_help): Delete.
1492         (print_switch): Delete.
1493         * opts.h (cl_lang_count): Add prototype.
1494         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
1495         CL_MAX_OPTION_CLASS): New defines.
1496         * optc-gen.awk: Add construction of cl_lang_count.
1497         * c.opt: Add Warning attribute to warning options and Optimization
1498         attribute to optimization options.
1499         * common.opt: Likewise.
1500         Add --help=.
1501         Add -fhelp and -ftarget-help as aliases for the transformed --help
1502         and --target-help options.
1503         * opt-functions.awk: Add code to handle Warning and Optimization
1504         attributes.
1505
1506 2007-02-12  Richard Henderson  <rth@redhat.com>
1507
1508         * config/alpha/constraints.md: New file.
1509         * config/alpha/alpha.c: Include tm-constrs.h.
1510         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
1511         alpha_extra_constraint): Remove.
1512         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
1513         * config/alpha/alpha-protos.h: Update.
1514         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
1515         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
1516         (EXTRA_CONSTRAINT): Remove.
1517         * config/alpha/alpha.md: Include constraints.md.
1518         (adddi splitter): Use satisfies_constraint_*.
1519         * config/alpha/predicates.md (add_operand): Likewise.
1520         (sext_add_operand, addition_operation): Likewise.
1521
1522 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
1523
1524         PR tree-optimization/29145
1525         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
1526         in our handling of restrict qualified pointers.
1527
1528 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1529
1530         PR middle-end/7651
1531         * doc/invoke.texi (Wunused-value): Update description.
1532         (Wextra): Delete item.
1533         * opts.c (set_Wextra): Don't use the value of Wextra to set the
1534         value of Wunused-value.
1535         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
1536         (c_finish_stmt_expr): Don't check extra_warnings.
1537         (emit_side_effect_warnings): The caller is responsible to check
1538         warn_unused_value.
1539
1540 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1541             Matt Thomas  <matt@3am-software.com>
1542
1543         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
1544
1545 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1546
1547         * simplify-rtx.c (simplify_relational_operation_1): Optimize
1548         comparisons of POPCOUNT against zero.
1549         (simplify_const_relational_operation): Likewise.
1550
1551 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1552
1553         * doc/invoke.texi (Wextra): Delete outdated paragraph.
1554
1555 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1556
1557         * dwarf2out.c (root_type): Delete unused function.
1558
1559 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1560
1561         * genattrtab.c (contained_in_p): Delete unused function.
1562         (write_expr_attr_cache): Likewise.
1563
1564 2007-02-11  Jan Hubicka  <jh@suse.cz>
1565
1566         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
1567         previous patch.
1568
1569 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
1570
1571         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
1572         to add the REG_EQ* note.
1573         * see.c (see_merge_one_use_extension): Likewise.
1574         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
1575         turn REG_EQUAL notes into REG_EQUIV notes if the target
1576         register may have more than one set.
1577         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
1578         * gcse.c (try_replace_reg): Likewise.
1579         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
1580         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
1581         more than one REG_EQUIV note.
1582         * reload1.c (gen_reload): Use set_unique_reg_note.
1583
1584 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
1585
1586         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
1587         (ix86_builtin_conversion): New function.
1588
1589 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
1590
1591         PR target/29487
1592         * tree.h (DECL_REPLACEABLE_P): New macro.
1593         * except.c (set_nothrow_function_flags): Likewise.
1594
1595 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
1596             Ira Rosen  <irar@il.ibm.com>
1597             Dorit Nuzman  <dorit@il.ibm.com>
1598
1599         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
1600         * targhooks.c (default_builtin_vectorized_conversion): New.
1601         * targhooks.h (default_builtin_vectorized_function): New declaration.
1602         * target.h (struct vectorize): Add builtin_conversion field.
1603         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
1604         stmt_vec_info_type value.
1605         (vectorizable_conversion): New declaration.
1606         * tree-vect-analyze.c (vect_analyze_operations): Add
1607         vectorizable_conversion call.
1608         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
1609         * tree-vect-transform.c (vectorizable_conversion): New function.
1610         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
1611         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
1612         mode.
1613         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
1614         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
1615         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
1616         or ALTIVEC_BUILTIN_VCFSX.
1617
1618 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1619
1620         PR target/30634
1621         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
1622         CONST_DOUBLE and operand 0 is a hard register.
1623         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
1624         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
1625         is a hard floating-point register.
1626
1627 2007-02-10  Richard Henderson  <rth@redhat.com>
1628             Jakub Jelinek  <jakub@redhat.com>
1629             Alexandre Oliva  <aoliva@redhat.com>
1630
1631         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
1632         * builtin-types.def (BT_WORD): Make unsigned.
1633         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
1634         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
1635         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
1636         * c-decl.c (grokdeclarator): Don't error if !have_tls.
1637         * c-parser.c (c_parser_omp_threadprivate): Likewise.
1638         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
1639         emulated tls.
1640         * expr.c (emutls_var_address): New.
1641         (expand_expr_real_1): Expand emulated tls.
1642         (expand_expr_addr_expr_1): Likewise.
1643         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
1644         * output.h (emutls_finish): Declare.
1645         * toplev.c (compile_file): Call it.
1646         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
1647         address before wrapping in CONST.
1648         * varasm.c (emutls_htab, emutls_object_type): New.
1649         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
1650         (get_emutls_object_name, get_emutls_object_type): New.
1651         (get_emutls_init_templ_addr, emutls_decl): New.
1652         (emutls_common_1, emutls_finish): New.
1653         (assemble_variable): When emulating tls, swap decls; generate
1654         constructor for the emutls objects.
1655         (do_assemble_alias): When emulating tls, swap decl and target name.
1656         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
1657         for emulated tls.
1658         * varpool.c (decide_is_variable_needed): Look at force_output.
1659         Recurse for emulated tls.
1660         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
1661         with decide_is_variable_needed.
1662         * emutls.c: New file.
1663         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
1664         tls_object for real tls.
1665
1666 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1667
1668         PR rtl-optimization/29599
1669         * reload1.c (eliminate_regs_in_insn): Take the destination
1670         mode into account when computing the offset.
1671
1672 2007-02-09  Stuart Hastings  <stuart@apple.com>
1673             Richard Henderson  <rth@redhat.com>
1674
1675         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1676         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1677         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
1678         fixuns_truncdfhi2): New.
1679         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
1680         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
1681         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
1682         (floatunssidf2): Allow nonimmediate source.
1683         * gcc/config/i386/sse.md (movdi_to_sse): New.
1684         (vec_concatv2di): Drop '*'.
1685         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
1686         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1687         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
1688         New.
1689         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
1690         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1691         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
1692         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
1693         (ix86_build_signbit_mask): Fix decl of v, refactor to call
1694         ix86_build_const_vector.
1695         (x86_emit_floatuns): Rewrite.
1696
1697 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1698
1699         * genautomata.c (longest_path_length): Delete unused function.
1700         (struct state): Delete unused longest_path_length.
1701         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
1702         (get_free_state): Delete unused.
1703
1704 2007-02-09  Jan Hubicka  <jh@suse.cz>
1705
1706         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
1707         * doc/invoke.texi (inline-unit-growth): Update default value.
1708
1709         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
1710         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
1711         (rebuild_cgraph_edges): Likewise.
1712         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
1713         (dump_cgraph_node): Dump frequencies.
1714         (cgraph_clone_edge): Add frequency scales.
1715         (cgraph_clone_node): Add freuqnecy.
1716         * cgraph.h (cgraph_edge): Add freuqnecy argument.
1717         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
1718         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
1719         * tree-pass.h (TODO_rebuild_frequencies): New constant.
1720         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
1721         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
1722         (save_inline_function_body): Likewise.
1723         * ipa-inline.c: inluce rtl.h
1724         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
1725         (cgraph_edge_badness): Use frequencies.
1726         (cgraph_decide_recursive_inlining): Update clonning.
1727         (cgraph_decide_inlining_of_small_function): Dump frequency.
1728         * predict.c (estimate_bb_frequencies): Export.
1729         * predict.h (estimate_bb_frequencies): Declare.
1730         * tree-inline.c (copy_bb): Watch overflows.
1731         (expand_call_inline): Update call of cgraph_create_edge.
1732         (optimize_inline_calls): Use TODO flags to update frequnecies.
1733         * passes.h: Include predict.h
1734         (init_optimization_passes): Move profile ahead.
1735         (execute_function_todo): Handle TODO_rebuild_frequencies.
1736
1737 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1738
1739         * config/alpha/alpha.c (emit_insxl): Force the first operand of
1740         the insbl or inswl pattern into a register.
1741
1742 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1743
1744         * config/ia64/ia64.md (bswapdi2): New define_insn.
1745
1746 2007-02-09  Richard Henderson  <rth@redhat.com>
1747
1748         * config/i386/constraints.md (Ym): New constraint.
1749         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
1750         (movdi_1_rex64): Split sse and xmm general register moves from
1751         memory move alternatives.  Use conditional register constraints.
1752         (movsf_1, movdf_integer): Likewise.
1753         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
1754         (movdf_integer_rex64): New.
1755         (pushsf_rex64): Fix output constraints.
1756         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
1757         (sse2_stored): Likewise.
1758         (sse2_storeq_rex64): New.
1759         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
1760         amd and not generic.
1761         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
1762         for optimize_size.  Remove SF/DFmode hack.
1763
1764 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
1765
1766         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
1767         (bit_SSE4a): New.
1768
1769 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
1770             Richard Sandiford  <richard@codesourcery.com>
1771
1772         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
1773         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
1774         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
1775         m68k/t-mlib to tmake_file.
1776         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
1777         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
1778         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
1779         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
1780         variable is not empty, add t-$m68k_arch_family to tmake_file.
1781         Add t-mlibs to tmake_file.
1782         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
1783         * config/m68k/t-cf: New file.
1784         * config/m68k/t-m68k: Likewise.
1785         * config/m68k/t-mlibs: Likewise.
1786         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1787         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1788         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1789         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1790         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
1791         Delete.
1792         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
1793         (INSTALL_LIBGCC): Delete.
1794         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1795         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1796         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1797         (M68K_MLIB_CPU): Define.
1798         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1799         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1800         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
1801
1802 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
1803             Richard Guenther  <rguenther@suse.de>
1804
1805         PR middle-end/23361
1806         * fold-const.c (fold_comparison): Handle obfuscated comparisons
1807         against INT_MIN/INT_MAX.
1808         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
1809         file if a loop is removed.
1810
1811 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
1812
1813         * calls.c (store_one_arg): Pass correct alignment to
1814         emit_push_insn for non-BLKmode values.
1815         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
1816         unaligned stack slot via a suitably aligned slot.
1817
1818 2007-02-08  DJ Delorie  <dj@redhat.com>
1819
1820         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
1821         warnings.
1822         (legal_subregs): Use unsigned char, make const.
1823         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
1824
1825 2007-02-08  Paul Brook  <paul@codesourcery.com>
1826
1827         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
1828         special interworking needed.
1829
1830 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
1831
1832         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
1833         conditional to __SSE2__.
1834         (Entries below should have been added to first ChangeLog
1835         entry for amdfam10 dated 2007-02-05)
1836         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
1837         defined.
1838         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
1839         defined.
1840         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
1841         defined.
1842
1843 2007-02-08  DJ Delorie  <dj@redhat.com>
1844
1845         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
1846         * config/m32c/m32c.c (legal_subregs): New.
1847         (m32c_illegal_subreg_p): New.
1848         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
1849         unsupported subregs of hard regs.
1850
1851 2007-02-08  Jan Hubicka  <jh@suse.cz>
1852
1853         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
1854         the same one; always update histograms.
1855
1856 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1857
1858         * passes.c (init_optimization_passes): Tidy comment.
1859
1860 2007-02-08  Roger Sayle  <roger@eyesopen.com>
1861
1862         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
1863         strip zero_extend, bswap and rotates from POCOUNT's argument.
1864         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
1865         zero_extend and rotates from PARITY's argument.
1866         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
1867         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
1868         of an integer constant at compile-time.
1869
1870 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1871
1872         PR 30562
1873         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
1874         Update all users.
1875         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
1876         users.
1877         (init_alias_info):
1878         * tree-ssa-live.c (remove_unused_locals): Do not remove
1879         TREE_ADDRESSABLE variables.
1880         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
1881         * tree-ssa-operands.c (add_virtual_operand): Remove argument
1882         FOR_CLOBBER.  Update all users.
1883         If VAR has an associated alias set, add a virtual operand for
1884         it if no alias is found to conflict with the memory reference.
1885
1886 2007-02-07  Jan Hubicka  <jh@suse.cz>
1887             Robert Kidd <rkidd@crhc.uiuc.edu>
1888
1889         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
1890
1891 2007-02-07  Ian Lance Taylor  <iant@google.com>
1892
1893         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
1894
1895 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1896
1897         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
1898         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
1899         tablejumpdi, movsi_to_cr_one): Remove constraints from
1900         define_expand's match_operands.
1901
1902 2007-02-07  Roger Sayle  <roger@eyesopen.com>
1903
1904         * global.c (compute_regsets): Move declatation of "i" inside of
1905         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
1906
1907 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
1908
1909         PR c++/30703
1910         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
1911         of INDIRECT_REF <RESULT_DECL>.
1912
1913         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
1914
1915 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
1916             Kaz Kojima  <kkojima@gcc.gnu.org>
1917
1918         PR target/29746
1919         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
1920         properly.
1921         (sh_initialize_trampoline): Add parentheses to avoid a warning.
1922
1923 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
1924
1925         * doc/loop.texi: Document possibility not to perform disambiguation
1926         of loops with multiple latches.
1927         * cfgloopmanip.c (alp_enum_p): Removed.
1928         (add_loop): Handle subloops.  Use get_loop_body_with_size.
1929         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
1930         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
1931         the new forwarder block.
1932         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
1933         Handle the case latch is NULL.
1934         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
1935         when marking loop exits.
1936         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
1937         be modified.
1938         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
1939         disambiguate_loops_with_multiple_latches.
1940         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
1941         before fix_loop_structure.
1942         * cfgloop.c: Include pointer-set.h and output.h.
1943         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
1944         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
1945         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
1946         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
1947         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
1948         disambiguate_multiple_latches, get_loop_body_with_size,
1949         disambiguate_loops_with_multiple_latches): New functions.
1950         (flow_loop_dump): Dump multiple latch edges.
1951         (flow_loop_nodes_find): Handle loops with multiple latches.
1952         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
1953         (glb_enum_p): Modified.
1954         (get_loop_body): Use get_loop_body_with_size.
1955         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
1956         (AVOID_CFG_MODIFICATIONS): New constant.
1957         (disambiguate_loops_with_multiple_latches, add_loop,
1958         get_loop_body_with_size): Declare.
1959         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
1960
1961 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
1962
1963         PR inline-asm/28686
1964         * global.c (compute_regsets): New function.
1965         (global_alloc): Refactored ELIMINABLE_REGSET
1966         and NO_GLOBAL_ALLOC_REGS computation out.
1967         (rest_of_handle_global_alloc): Call compute_regsets()
1968         for non-optimizing case.
1969
1970 2007-02-06  Richard Henderson  <rth@redhat.com>
1971
1972         * config/i386/constraints.md (Y2): Rename from Y.
1973         (Yi): New constraint.
1974         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
1975         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
1976         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
1977         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
1978         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
1979         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
1980         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
1981         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
1982         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
1983         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
1984         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
1985         vec_extractv2si_1): Change Y constraints to Y2.
1986         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
1987         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
1988         Change Y constraints to Y2.
1989         (sse2_loadld): Change Y constraints to x.
1990
1991 2007-02-06  Roger Sayle  <roger@eyesopen.com>
1992
1993         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
1994         (parity<mode>2): New define_expand using rs6000_emit_parity.
1995         * config/rs6000/rs6000.c (rs6000_emit_popcount,
1996         rs6000_emit_parity): New functions.
1997         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
1998         rs6000_emit_parity): Prototype here.
1999
2000 2007-02-06  Ian Lance Taylor  <iant@google.com>
2001
2002         * lower-subreg.c (simple_move_operand): Reject CONST.
2003         (resolve_clobber): Call validate_change rather than directly
2004         assigning to XEXP (pat, 0).
2005
2006 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2007
2008         * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
2009         (tree-ssa-reassoc.o): Add pointer-set.h dependency.
2010         (tree-cfg.o): Remove hashtab.h dependency.
2011
2012         * tree-ssa-loop-ivopts.c: Include pointer-set.h.
2013         (struct ivopts_data): Change niters to pointer_map_t.
2014         (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
2015         (niter_for_exit): Create pointer_map on demand.  Change for
2016         pointer_map API.
2017         (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
2018         (free_loop_data): Destroy data->niters if created and reset field.
2019         (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
2020         (tree_ssa_iv_optimize_loop): Check for presence of stale data.
2021
2022         * tree-ssa-reassoc.c: Include pointer-set.h.
2023         (bb_rank): Change to long *.
2024         (operand_rank): Change to pointer_map_t.
2025         (find_operand_rank): Return long, -1 if not found.  Declare as inline.
2026         (insert_operand_rank): Accept long.
2027         (operand_entry_hash, operand_entry_eq): Remove.
2028         (get_rank): Return long.  Adjust for changes above.
2029         (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
2030         and operand_rank.
2031         (fini_reassoc): Delete operand_rank with pointer_map_destroy.
2032
2033         * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
2034         (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
2035         (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
2036         is not NULL.
2037         (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
2038         directly since it cannot be NULL.
2039         (get_vi_for_tree): Rewrite for pointer_map API.
2040         (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
2041         (init_alias_vars): Create vi_for_tree as pointer_map.
2042         (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.
2043
2044         * tree-cfg.c: Don't include hashtab.h.
2045         (edge_to_cases): Declare as pointer_map.
2046         (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
2047         Delete.
2048         (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
2049         (start_recording_case_labels): Create edge_to_cases as pointer_map.
2050         (end_recoding_case_labels): Cleanup edge_to_cases manually before
2051         destroying it.
2052         (record_switch_edge): Delete.
2053         (get_cases_for_edge): Adjust for pointer_map API, inline
2054         record_switch_edge (rewritten for new API), remove goto.
2055
2056 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2057
2058         * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
2059         * tree-nested.c: Include pointer-set.h.
2060         (var_map_elt, var_map_eq, var_map_hash): Delete.
2061         (struct nesting_info): Remove GTY marker.  Change the two htab_t's
2062         to pointer_map_t's.
2063         (nesting_info_bitmap_obstack): New.
2064         (lookup_field_for_decl): Adjust for pointer_map API.
2065         (lookup_tramp_for_decl): Adjust for pointer_map API.
2066         (get_nonlocal_debug_decl): Adjust for pointer_map API.
2067         (get_local_debug_decl): Adjust for pointer_map API.
2068         (convert_nl_goto_reference): Adjust for pointer_map API.
2069         (convert_nl_goto_receiver): Adjust for pointer_map API.
2070         (create_nesting_tree): Create outside GGC space.  Create bitmap on
2071         the new obstack.  Create field_map and var_map as pointer_maps.
2072         (free_nesting_tree): Adjust for changes to create_nesting_tree.
2073         (root): Delete.
2074         (lower_nested_functions): Move root here, no need to NULL it.
2075         Initialize and release the obstack.
2076
2077 2007-02-06  Paolo Bonzini  <bonzini@gnu.org>
2078
2079         * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
2080         Remove prototypes and make them non-static.
2081         (struct tree_int_map): Remove.
2082         * tree.h (struct tree_int_map): Move here, turning TO into an
2083         unsigned int.
2084         (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.
2085
2086         * tree.h (TREE_COMPLEXITY): Remove.
2087         (struct tree_exp): Remove complexity field.
2088         * tree.c (build1_stat): Don't set it.
2089
2090 2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
2091             Victor Kaplansky  <victork@il.ibm.com>
2092
2093         * tree-vectorizer.c (vect_is_simple_use): Support induction.
2094         (vect_is_simple_reduction): Support reduction with induction as
2095         one of the operands.
2096         (vect_is_simple_iv_evolution): Fix formatting.
2097         * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
2098         formatting.  Don't mark induction phis for vectorization.
2099         (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
2100         * tree-vect-transform.c (get_initial_def_for_induction): New function.
2101         (vect_get_vec_def_for_operand): Support induction.
2102         (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
2103         induction case.
2104         (vectorizable_reduction): Support reduction with induction as one of
2105         the operands.
2106         (vectorizable_type_demotion): Use def-type of stmt argument rather
2107         than dummy def-type.
2108
2109         * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
2110         flag_tree_scev_cprop.
2111         * common.opt (tree-scev-cprop): New flag.
2112
2113         * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
2114         call to vect_get_new_vect_var.
2115
2116 2007-02-06  Ira Rosen  <irar@il.ibm.com>
2117
2118         * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
2119         vectype is not NULL.
2120         (vect_pattern_recog_1): Likewise.
2121
2122 2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2123
2124         * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
2125         (fold_negate_expr): Likewise.
2126
2127 2007-02-05  Alexandre Oliva  <aoliva@redhat.com>
2128
2129         PR debug/30189
2130         * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
2131         even if cv-qualification is the same.
2132
2133 2007-02-05  Geoffrey Keating  <geoffk@apple.com>
2134
2135         * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
2136         __enable_execute_stack on completion.
2137
2138 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2139
2140         * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
2141         athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
2142         athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
2143         athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
2144         athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
2145         athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
2146         athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
2147         athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.
2148
2149 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2150
2151         * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
2152         cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
2153         swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
2154         fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
2155         x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
2156         floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
2157         floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
2158         mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
2159         umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
2160         umuldi3_highpart_rex64, umulsi3_highpart_insn,
2161         umulsi3_highpart_zext, smuldi3_highpart_rex64,
2162         smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
2163         x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
2164         sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
2165         sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
2166         sqrtextenddfxf2_i387): Added amdfam10_decode.
2167
2168         * config/i386/athlon.md (athlon_idirect_amdfam10,
2169         athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
2170         athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
2171         athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
2172         athlon_ivector_store_amdfam10): New define_insn_reservation.
2173         (athlon_idirect_loadmov, athlon_idirect_movstore): Added
2174         amdfam10.
2175
2176 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2177
2178         * config/i386/athlon.md (athlon_call_amdfam10,
2179         athlon_pop_amdfam10, athlon_lea_amdfam10): New
2180         define_insn_reservation.
2181         (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
2182         athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
2183         athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.
2184
2185 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2186
2187         * config/i386/athlon.md (athlon_sseld_amdfam10,
2188         athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
2189         athlon_mmxssest_short_amdfam10): New define_insn_reservation.
2190
2191 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2192
2193         * config/i386/athlon.md (athlon_sseins_amdfam10): New
2194         define_insn_reservation.
2195         * config/i386/i386.md (sseins): Added sseins to define_attr type
2196         and define_attr unit.
2197         * config/i386/sse.md: Set type attribute to sseins for insertq
2198         and insertqi.
2199
2200 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2201
2202         * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
2203         ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
2204         ssecomi_load_amdfam10, ssecomi_amdfam10,
2205         sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
2206         define_insn_reservation.
2207         (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.
2208
2209 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2210
2211         * config/i386/athlon.md (cvtss2sd_load_amdfam10,
2212         cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
2213         cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
2214         cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
2215         cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
2216         cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
2217         define_insn_reservation.
2218
2219         * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
2220         cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
2221         cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
2222         cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
2223         cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.
2224
2225 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2226
2227         * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
2228         athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
2229         athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
2230         (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
2231         athlon_ssemul_load_k8): Added amdfam10.
2232
2233 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2234
2235         * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
2236         (x86_sse_unaligned_move_optimal): New variable.
2237
2238         * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
2239         m_AMDFAM10.
2240         (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
2241         for unaligned vector SSE double/single precision loads for AMDFAM10.
2242
2243 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2244
2245         * config/i386/i386.h (TARGET_AMDFAM10): New macro.
2246         (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
2247         Define TARGET_CPU_DEFAULT_amdfam10.
2248         (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
2249         (processor_type): Add PROCESSOR_AMDFAM10.
2250
2251         * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
2252         processor_type in config/i386/i386.h.
2253         Enable imul peepholes for TARGET_AMDFAM10.
2254
2255         * config.gcc: Add support for --with-cpu option for amdfam10.
2256
2257         * config/i386/i386.c (amdfam10_cost): New variable.
2258         (m_AMDFAM10): New macro.
2259         (m_ATHLON_K8_AMDFAM10): New macro.
2260         (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
2261         x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
2262         x86_promote_QImode, x86_integer_DFmode_moves,
2263         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2264         x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
2265         x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
2266         x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
2267         x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
2268         Enable/disable for amdfam10.
2269         (override_options): Add amdfam10_cost to processor_target_table.
2270         Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
2271         processor_alias_table.
2272         (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
2273         (ix86_adjust_cost): Add code for amdfam10.
2274
2275 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2276
2277         * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
2278         instruction set feature flag. Add new (-mpopcnt) flag for popcnt
2279         instruction. Add new SSE4A (-msse4a) instruction set feature flag.
2280         * config/i386/i386.h: Add builtin definition for SSE4A.
2281         * config/i386/i386.md: Add support for ABM instructions
2282         (popcnt and lzcnt).
2283         * config/i386/sse.md: Add support for SSE4A instructions
2284         (movntss, movntsd, extrq, insertq).
2285         * config/i386/i386.c: Add support for ABM and SSE4A builtins.
2286         Add -march=amdfam10 flag.
2287         * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
2288         * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
2289         and amdfam10.
2290         * doc/extend.texi: Add documentation for SSE4A builtins.
2291
2292 2007-02-05  Bob Wilson  <bob.wilson@acm.org>
2293
2294         * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.
2295
2296 2007-02-05  Richard Guenther  <rguenther@suse.de>
2297
2298         * tree-vectorizer.h (vectorizable_function): Add argument type
2299         argument, change return type.
2300         * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
2301         * tree-vect-transform.c (vectorizable_function): Handle extra
2302         argument, return vectorized function decl.
2303         (build_vectorized_function_call): Remove.
2304         (vectorizable_call): Handle calls with result and argument types
2305         differing.  Handle loop vectorization factor correctly.
2306         * targhooks.c (default_builtin_vectorized_function): Adjust for
2307         extra argument.
2308         * targhooks.h (default_builtin_vectorized_function): Likewise.
2309         * target.h (builtin_vectorized_function): Add argument type
2310         argument.
2311         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2312         extra argument, allow vectorizing of lrintf.
2313         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
2314         documentation of target hook.
2315
2316 2007-02-05  Hans-Peter Nilsson  <hp@axis.com>
2317
2318         PR target/30665
2319         * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
2320         ("*andhi_clear", andu (casesi+45)): For size-changed operand where
2321         memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.
2322
2323 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2324
2325         * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
2326         BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
2327         <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
2328         * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
2329         before canonicalizing sincos to cexpi.
2330         (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
2331
2332 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2333
2334         * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
2335         Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
2336         (alpha_init_builtins): Use alpha_add_builtins to process tables.
2337
2338 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2339
2340         * mips-tfile.c (initialize_init_file): Correct endianness test.
2341
2342 2007-02-05  Kazu Hirata  <kazu@codesourcery.com>
2343
2344         * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
2345         the 'y' constraint.
2346
2347 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2348
2349         * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
2350         saves in a PARALLEL before the register assignments.
2351
2352 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2353
2354         * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
2355         DWARF_FRAME_RETURN_COLUMN to be a general register.
2356         * dwarf2out.c (init_return_column_size): New function, split from...
2357         (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
2358         DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
2359         to be nongeneral registers.
2360         * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
2361         integer registers.
2362         (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
2363         (DWARF_ALT_FRAME_RETURN_COLUMN): Define.
2364
2365 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2366
2367         * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.
2368
2369 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2370
2371         * cfgloopmanip.c (loop_delete_branch_edge): Removed.
2372         (remove_path): Use can_remove_branch_p and remove_branch instead
2373         of loop_delete_branch_edge.
2374         * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
2375         (tree_transform_and_unroll_loop): Remove dead branches immediately.
2376         Update profile using scale_dominated_blocks_in_loop.
2377         * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
2378         * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
2379         (can_remove_branch_p, remove_branch): Declare.
2380         * tree-cfg.c (tree_can_remove_branch_p): New function.
2381         (tree_cfg_hooks): Add tree_can_remove_branch_p.
2382         * cfgrtl.c (rtl_can_remove_branch_p): New function.
2383         (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.
2384
2385 2007-02-05  Jan Hubicka  <jh@suse.cz>
2386
2387         PR middle-end/30696
2388         * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
2389         nodes in cgraph, don't remove offline copy of the function.
2390
2391 2007-02-04  Jan Hubicka  <jh@suse.cz>
2392
2393         * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
2394         vectors might cause maybe_lookup_element_for_expr to be called
2395         on non-sra-candidate.
2396
2397 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2398
2399         * config/bfin/bfin-modes.def, config/bfin/bfin.c,
2400         config/bfin/bfin.md, config/bfin/predicates.md: Follow
2401         spelling conventions.
2402
2403 2007-02-04  Richard Guenther  <rguenther@suse.de>
2404
2405         PR middle-end/30636
2406         * fold-const.c (try_move_mult_to_index): Make sure to not
2407         overflow one dimension of a multi-dimensional array access.
2408
2409 2007-02-04  Jan Hubicka  <jh@suse.cz>
2410
2411         * passes.c (init_optimization_passes): Reindent.
2412
2413 2007-02-04  Jan Hubicka  <jh@suse.cz>
2414             Eric Botcazou  <ebotcazou@adacore.com>
2415
2416         * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
2417         (execute_fixup_cfg): Break out the abnormal goto code.
2418         * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
2419         (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
2420         (optimize_inline_calls): Call make_nonlocal_label_edges.
2421
2422 2007-02-04  Jan Hubicka  <jh@suse.cz>
2423
2424         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
2425         true when something was changed.
2426         (rename_ssa_copies): When something was changed, do
2427         TODO_remove_unused_locals.
2428         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
2429         add TODO_remove_unused_locals when instruction was removed.
2430
2431 2007-02-04  Jan Hubicka  <jh@suse.cz>
2432
2433         * ipa-inline.c (try_inline): Improve debug output; work on already
2434         inline edges too.
2435         (cgraph_decide_inlining_incrementally): Indent; improve debug output;
2436         call try_inline for already inlined edges too when flattening;
2437         inline also functions that make callee growth but overall unit size
2438         reduce.
2439
2440 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2441
2442         * config/m32c/bitops.md, config/m32c/jump.md,
2443         config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
2444         config/m32r/m32r.h, config/m32r/m32r.md,
2445         config/m32r/predicates.md, config/m68hc11/larith.asm,
2446         config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
2447         config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
2448         config/mips/mips-protos.h, config/mips/mips.c,
2449         config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
2450         config/mn10300/mn10300.h, config/mn10300/predicates.md,
2451         config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
2452         spelling conventions.
2453
2454         * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
2455         Follow spelling conventions.
2456
2457 2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>
2458
2459         * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
2460         warn about C++0x compatibility.
2461
2462 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2463
2464         * config/h8300/h8300.c, config/h8300/h8300.h,
2465         config/h8300/h8300.md: Follow spelling conventions.
2466
2467 2007-02-03  Uros Bizjak  <ubizjak@gmail.com>
2468
2469         PR middle-end/30667
2470         * combine.c (try_combine): Do not substitute source operand
2471         with constants wider than 2 * HOST_BITS_PER_WIDE_INT.
2472
2473 2007-02-03  Jan Hubicka  <jh@suse.cz>
2474
2475         PR gcov-profile/30650
2476         * value-prof.c (stringop_block_profile): Fix handling of size counter;
2477         do not divide by zero for never executed counters.
2478         (tree_find_values_to_profile): Fix counters.
2479         * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2480
2481 2007-02-03  Ian Lance Taylor  <iant@google.com>
2482
2483         * lower-subreg.c (simple_move_operand): New static function,
2484         broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
2485         operands.
2486         (simple_move): Call simple_move_operand.
2487         (find_decomposable_subregs): Add special handling of MEMs.
2488         (can_decompose_p): Rename from cannot_decompose_p.  Reverse
2489         meaning of return value.  If we see a hard register, test whether
2490         it can store a word_mode value.  Change all callers.
2491
2492 2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2493
2494         * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
2495         ftrapv insns and expanders.
2496         (subdi3): Change define_expand operand 1 to arith11_operand, and
2497         operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
2498         pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
2499         handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
2500         respectively.
2501
2502         PR middle-end/30174
2503         * varasm.c (notice_global_symbol): Treat global objects as weak when
2504         flag_shlib is true.
2505
2506 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2507
2508         * emit-rtl.c (dconstpi): Delete.
2509         (dconstsqrt2): New.
2510         (init_emit_once): Delete dconstpi and init dconstsqrt2.
2511         * real.h (dconstpi): Delete.
2512         (dconstsqrt2): New.
2513         * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
2514         (fold_builtin_hypot): Likewise.
2515
2516 2007-02-03  Tom Tromey  <tromey@redhat.com>
2517
2518         PR driver/30246
2519         * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
2520         -gcoff3, -gxcoff3, -gvms3 implies -dD.
2521
2522 2007-02-03  Kazu Hirata  <kazu@codesourcery.com>
2523
2524         * c-decl.c, config/avr/avr.c, config/avr/avr.h,
2525         config/m68k/m68k.c, config/m68k/netbsd-elf.h,
2526         config/mn10300/mn10300.c, config/pdp11/pdp11.h,
2527         config/rs6000/cell.md, config/rs6000/darwin.h,
2528         config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
2529         config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
2530         jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
2531         tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
2532         typos.  Follow spelling conventions.
2533         * doc/invoke.texi: Follow spelling conventions.
2534
2535 2007-02-03  Roger Sayle  <roger@eyesopen.com>
2536
2537         * simplify-rtx.c (simplify_relational_operation_1): Implement some
2538         canonicalization transformations that attempt to simplify integer
2539         constant comparisons to become comparisons against zero.
2540
2541 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2542
2543         * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
2544         fabs(x)*sqrt(2).
2545         * fold-const.c (fold_binary): Fix comment typos.  Fold complex
2546         (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).
2547
2548 2007-02-02  Mike Stump  <mrs@apple.com>
2549
2550         * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
2551         * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
2552         (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
2553         generate a branch island.
2554
2555 2007-02-02  Bob Wilson  <bob.wilson@acm.org>
2556
2557         * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
2558         (xtensa_legitimate_address_p): New.
2559         (xtensa_legitimize_address): New.
2560         (xtensa_output_addr_const_extra): New.
2561         * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
2562         (BASE_REG_P): New.
2563         (REG_OK_FOR_BASE_P): Use BASE_REG_P.
2564         (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
2565         (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
2566         (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
2567         * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
2568         (xtensa_legitimize_address): New.
2569         (xtensa_output_addr_const_extra): New.
2570
2571 2007-02-02  Steve Ellcey  <sje@cup.hp.com>
2572
2573         * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
2574
2575 2007-02-02  Ian Lance Taylor  <iant@google.com>
2576
2577         * expmed.c (expand_divmod): Add comment.
2578
2579 2007-02-02  Kazu Hirata  <kazu@codesourcery.com>
2580
2581         * emit-rtl.c (renumber_insns): Remove.
2582         * flags.h: Remove the extern for flag_renumber_insns.
2583         * rtl.h: Remove the prototype for renumber_insns.
2584         * toplev.c (flag_renumber_insns): Remove.
2585
2586 2007-02-02  Hui-May Chang  <hm.chang@apple.com>
2587
2588         Revert for x86 darwin:
2589         2005-06-19  Uros Bizjak  <uros@kss-loka.si>
2590
2591         * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
2592         code before the following patch under TARGET_MACHO.
2593         (ix86_function_value_regno_p): Likewise.
2594
2595 2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2596
2597         * fold-const.c (negate_expr_p, fold_negate_expr): Handle
2598         COMPLEX_EXPR.
2599
2600 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2601
2602         PR target/29682
2603         * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
2604         general or fp registers.  Add comments.
2605         * config/ia64/ia64.md (reg_pred_prefix): Add comment.
2606
2607 2007-02-02  Paolo Bonzini  <bonzini@gnu.org>
2608
2609         * pointer-set.c (insert_aux): Only return insertion slot.
2610         (pointer_set_insert): Adjust.
2611         (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
2612         pointer_map_destroy, pointer_map_insert, pointer_map_contains,
2613         pointer_map_traverse): New.
2614         * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
2615         pointer_map_create,  pointer_map_destroy, pointer_map_insert,
2616         pointer_map_contains, pointer_map_traverse): Declare.
2617
2618 2007-02-02  Jakub Jelinek  <jakub@redhat.com>
2619
2620         PR middle-end/30473
2621         * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
2622         sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).
2623
2624 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2625
2626         * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
2627
2628         (struct _dep): New type.
2629         (dep_t): New typedef.
2630         (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
2631         (DEP_STATUS): New access macro.  The macro with the same name was
2632         renamed to DEP_LINK_STATUS.
2633         (dep_init): Declare function
2634
2635         (struct _dep_link): New type.
2636         (dep_link_t): New typedef.
2637         (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
2638         (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
2639         (DEP_LINK_STATUS): New macro.
2640         (debug_dep_links): New debug function.
2641
2642         (struct _deps_list): New type.
2643         (deps_list_t): New typedef.
2644         (DEPS_LIST_FIRST): New access macro.
2645         (FOR_EACH_DEP_LINK): New cycle macro.
2646         (create_deps_list, free_deps_list, delete_deps_list): Declare
2647         functions.
2648         (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
2649         (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
2650         (copy_deps_list_change_con): Ditto.
2651
2652         (move_dep_link): Declare function.
2653
2654         (struct _dep_node): New type.
2655         (dep_node_t): New typedef.
2656         (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
2657
2658         (struct haifa_insn_data.back_deps): New field to hold backward
2659         dependencies of the insn.
2660         (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
2661         to deps_list_t.
2662         (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
2663         Change its type to deps_list_t.
2664         (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
2665         (INSN_DEPEND): Rename to INSN_FORW_DEPS.
2666         (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
2667
2668         (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
2669
2670         (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.
2671
2672         (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
2673         all callers.
2674         (dep_cost): Declare.
2675
2676         * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
2677         (ds_to_dk, dk_to_ds): New functions.
2678
2679         (init_dep_1): New static function.
2680         (init_dep): New function.
2681         (copy_dep): New static function.
2682
2683         (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
2684         functions.
2685         (detach_dep_link): New static function.
2686         (move_dep_link): New function.
2687
2688         (dep_links_consistent_p, dump_dep_links): New static functions.
2689         (debug_dep_links): New debugging function.
2690
2691         (deps_obstack, dl_obstack, dn_obstack): New static variables.
2692
2693         (alloc_deps_list, init_deps_list): New static functions.
2694         (create_deps_list): New function.
2695         (clear_deps_list): New static function.
2696         (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
2697         (deps_list_consistent_p, dump_deps_list): New static functions.
2698         (debug_deps_list): New function.
2699         (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
2700         functions.
2701         (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
2702
2703         (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
2704         use new scheduler dependencies lists.
2705         (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
2706         (sched_analyze): Ditto.  Initialize dependencies lists.
2707         (add_forw_dep, compute_forward_dependences): Update to use new
2708         scheduler dependencies lists.
2709
2710         (init_dependency_caches): Init deps_obstack.
2711         (free_dependency_caches): Free deps_obstack.
2712
2713         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
2714         new scheduler dependencies lists.
2715         (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
2716         (add_back_forw_dep, delete_back_forw_dep): Ditto.
2717
2718         * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
2719         Update to use new scheduler dependencies lists.
2720         (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
2721         (debug_dependencies): Ditto.
2722         (schedule_region): Update comments.
2723
2724         * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
2725         scheduler dependencies lists.
2726         (schedule_ebb): Update comments.
2727
2728         * rtl.def (DEPS_LIST): Remove.
2729
2730         * lists.c (unused_deps_list): Remove.
2731         (free_list): Update assertions.
2732
2733         (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
2734         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2735
2736         * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
2737         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2738
2739         * haifa-sched.c (comments): Update.
2740         (insn_cost1): Remove.  Inline the code into insn_cost ().
2741         (insn_cost): Update to use new scheduler dependencies lists.  Move
2742         processing of the dependency cost to dep_cost ().
2743         (dep_cost): New function.  Use it instead of insn_cost () when
2744         evaluating cost of the dependency.  Use compatible interface to
2745         interact with the target.
2746         (priority): Update to use new scheduler dependencies lists.
2747         (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
2748         with greater number of insns that depend on the insn.
2749         (schedule_insn): Update to use new scheduler dependencies lists.  Add
2750         code to free backward dependencies lists.  Inline and optimize code
2751         from resolve_dep () - see PR28071.
2752         (ok_for_early_queue_removal): Update to use new scheduler dependencies
2753         lists.  Update call to targetm.sched.is_costly_dependence hook.
2754
2755         (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
2756         scheduler dependencies lists.
2757
2758         (resolve_dep): Remove.  Move the logic to schedule_insn ().
2759         (init_h_i_d): Initialize dependencies lists.
2760
2761         (process_insn_depend_be_in_spec): Rename to
2762         process_insn_forw_deps_be_in_spec.  Update to use new scheduler
2763         dependencies lists.
2764         (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
2765         Update to use new scheduler dependencies lists.
2766         (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
2767
2768         * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
2769         new scheduler dependencies lists.
2770         (build_intra_loop_deps): Ditto.
2771
2772         * target.h (struct _dep): Declare to use in
2773         gcc_target.sched.is_costly_dependence.
2774         (struct gcc_target.sched.adjust_cost): Fix typo.
2775         (struct gcc_target.sched.is_costly_dependence): Change signature to use
2776         single dep_t parameter instead of an equivalent triad.
2777         (struct gcc_target.sched.adjust_cost_2): Remove.
2778
2779         * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
2780
2781         * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
2782
2783         * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
2784         documentation.
2785         (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
2786
2787         * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
2788         (REG_DEP_TRUE): Document.
2789
2790         * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
2791         Change signature to correspond to the targetm.sched.adjust_cost hook.
2792         Update use in TARGET_SCHED_ADJUST_COST_2.
2793         (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
2794         (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
2795         new scheduler dependencies lists.
2796         (ia64_gen_check): Ditto.
2797
2798         * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
2799         dependencies lists.
2800
2801         * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
2802         signature to correspond to the targetm.sched.is_costly_dependence hook.
2803         (is_costly_group): Update to use new scheduler dependencies lists.
2804
2805         * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
2806         instead of INSN_COST () macro.
2807
2808 2007-02-01  Ian Lance Taylor  <iant@google.com>
2809
2810         * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
2811
2812 2007-02-01  Guy Martin  <gmsoft@gentoo.org>
2813
2814         * pa.md (tp_load): Correct mfctl instruction syntax.
2815
2816 2007-02-01  Geoffrey Keating  <geoffk@apple.com>
2817
2818         * config/rs6000/rs6000.c (rs6000_stack_info): Correct
2819         altivec_padding_size calculation on AIX.  Improve comment, add
2820         assert to verify that it's right.
2821
2822         * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
2823         64-bit.
2824
2825 2007-2-01  Seongbae Park  <seongbae.park@gmail.com>
2826
2827         PR inline-asm/28686
2828         * global.c (global_alloc): Add mising initialization of
2829         ELIMINABLE_REGSET.
2830
2831 2007-02-01  Roger Sayle  <roger@eyesopen.com>
2832
2833         * alias.c (init_alias_analysis): Correct whitespace.
2834         * bb-reorder.c (fix_edges_for_rarely_executed_code,
2835         partition_hot_cold_basic_blocks): Likewise.
2836         * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
2837         expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
2838         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
2839         fold_builtin_snprintf_chk, fold_builtin_printf,
2840         fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
2841         do_mpfr_arg3, do_mpfr_sincos): Likewise.
2842         * cfgcleanup.c (cleanup_cfg): Likewise.
2843         * cfgexpand.c (tree_expand_cfg): Likewise.
2844         * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
2845         * function.c (get_next_funcdef_no): Likewise.
2846         * gengtype.c (main): Likewise.
2847         * genmodes.c (main): Likewise.
2848         * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
2849         * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
2850         * ifcvt.c (noce_emit_move_insn): Likewise.
2851         * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
2852         Likewise.
2853         * stor-layout.c (get_best_mode): Likewise.
2854         * tree-ssa-loop-niter.c (get_val_for): Likewise.
2855         * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
2856         scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
2857         perform_var_substitution, solve_graph): Likewise.
2858         * tree-vrp.c (vrp_finalize): Likewise.
2859
2860 2007-02-01  Ian Lance Taylor  <iant@google.com>
2861
2862         * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
2863         high part of a paradoxical subreg, return a constant zero.
2864
2865 2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>
2866
2867         * toplev.c (lang_dependent_init): Call init_set_costs.
2868         * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
2869
2870 2007-02-01  Richard Guenther  <rguenther@suse.de>
2871
2872         PR middle-end/30656
2873         * fold-const.c (fold_negate_expr): Allow negating a
2874         constant if overflow does not change.
2875
2876 2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2877
2878         * doc/c-tree.texi (Expression trees): Improve markup.
2879         * doc/tm.texi (Register Classes, Addressing Modes)
2880         (Floating Point): Fix spacing after abbreviations.  Fix some
2881         typos.
2882
2883 2007-02-01  Ben Elliston  <bje@au.ibm.com>
2884
2885         * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
2886         * doc/contrib.texi: Likewise.
2887         * doc/install.texi: Likewise.
2888
2889 2007-01-31  Richard Henderson  <rth@redhat.com>
2890             Ian Lance Taylor  <iant@google.com>
2891
2892         * lower-subreg.c: New file.
2893         * rtl.def (CONCATN): Define.
2894         * passes.c (init_optimization_passes): Add pass_lower_subreg and
2895         pass_lower_subreg2.
2896         * emit-rtl.c (update_reg_offset): New static function, broken out
2897         of gen_rtx_REG_offset.
2898         (gen_rtx_REG_offset): Call update_reg_offset.
2899         (gen_reg_rtx_offset): New function.
2900         * regclass.c: Revert patch of 2006-03-05, restoring
2901         reg_scan_update.
2902         (clear_reg_info_regno): New function.
2903         * dwarf2out.c (concatn_loc_descriptor): New static function.
2904         (loc_descriptor): Handle CONCATN.
2905         * common.opt (fsplit_wide_types): New option.
2906         * opts.c (decode_options): Set flag_split_wide_types when
2907         optimizing.
2908         * timevar.def (TV_LOWER_SUBREG): Define.
2909         * rtl.h (gen_reg_rtx_offset): Declare.
2910         (reg_scan_update): Declare.
2911         * regs.h (clear_reg_info_regno): Declare.
2912         * tree-pass.h (pass_lower_subreg): Declare.
2913         (pass_lower_subreg2): Declare.
2914         * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
2915         (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
2916         -fsplit-wide-types.
2917         * doc/rtl.texi (Regs and Memory): Document concat and concatn.
2918         * Makefile.in (OBJS-common): Add lower-subreg.o.
2919         (lower-subreg.o): New target.
2920
2921 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2922
2923         * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
2924
2925 2007-01-31  Anatoly Sokolov <aesok@post.ru>
2926
2927         PR target/19087
2928         * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
2929
2930 2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2931
2932         PR middle-end/29335
2933         * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.
2934
2935 2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>
2936
2937         * cfgloop.h: Include vec-prim.h.
2938         (enum li_flags): Remove LI_ONLY_OLD.
2939         (loop_iterator): Changed.
2940         (fel_next, fel_init): Iterate over loop tree.
2941         (FOR_EACH_LOOP_BREAK): New macro.
2942         * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
2943         FOR_EACH_LOOP.
2944         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
2945         * modulo-sched.c (sms_schedule): Ditto.
2946         * tree-vectorizer.c (vectorize_loops): Ditto.
2947         * doc/loop.texi: Update information on loop numbering and behavior of
2948         FOR_EACH_LOOP wrto new loops.
2949         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
2950         add_to_evolution_1): Test nestedness of loops instead of comparing
2951         their numbers.
2952         * tree-chrec.c (chrec_fold_plus_poly_poly,
2953         chrec_fold_multiply_poly_poly, chrec_evaluate,
2954         hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
2955         reset_evolution_in_loop): Ditto.
2956         * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.
2957
2958 2007-01-31  Dirk Mueller  <dmueller@suse.de>
2959
2960         * c-common.c (warn_about_parentheses): Separate warning about
2961         un-parenthized sequence of comparison operators from the one
2962         which is supposed to warn about x <= y <= z.
2963
2964 2007-01-31  Uros Bizjak  <ubizjak@gmail.com>
2965
2966         * optabs.h (enum optab_index): Add new OTI_isinf.
2967         (isinf_optab): Define corresponding macro.
2968         * optabs.c (init_optabs): Initialize isinf_optab.
2969         * genopinit.c (optabs): Implement isinf_optab using isinf?f2
2970         patterns.
2971         * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
2972         (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
2973         using isinf_optab.
2974         (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
2975         expand_builtin_interclass_mathfn.
2976         * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
2977         * config/i386/i386.md (UNSPEC_FXAM): New constant.
2978         (fxam<mode>2_i387): New insn pattern.
2979         (isinf<mode>2) New expander to implement isinf, isinff and isinfl
2980         built-in functions as x87 inline asm.
2981
2982 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2983
2984         * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.
2985
2986 2007-01-30  Eric Christopher  <echristo@apple.com>
2987
2988         * config.gcc: Add geode.
2989
2990 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
2991
2992         * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
2993         ipa-inline.c, tree-profile.c, tree-ssa-live.c,
2994         tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
2995         value-prof.c: Fix comment typos.
2996
2997 2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2998
2999         PR c++/24745
3000         * doc/invoke.texi (Wpointer-arith): Document warning.
3001
3002 2007-01-30  Janis Johnson  <janis187@us.ibm.com>
3003
3004         * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
3005         the list of discrepancies from the draft TR.
3006
3007 2007-01-30  Dirk Mueller  <dmueller@suse.de>
3008
3009         PR c++/30601
3010         * doc/invoke.texi (-Wreturn-type): Update description to
3011         match new behavior.
3012
3013 2007-01-30  Richard Sandiford  <richard@codesourcery.com>
3014
3015         * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
3016
3017 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
3018
3019         * builtins.c (expand_builtin_int_interclass_roundingfn): New function
3020         to handle optabs that operate on floating point input argument and
3021         output to integer output.
3022         (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
3023         (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
3024         (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
3025         expand_builtin_interclass_mathfn ().
3026         * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
3027         (ilogbsi2): Remove.
3028         (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
3029         ilogbl built-in functions as x87 intrinsics.
3030
3031 2007-01-30  Richard Guenther  <rguenther@suse.de>
3032
3033         PR middle-end/27657
3034         * dwarf2out.c (reference_to_unused): Query varpool if the
3035         variable was output.
3036
3037 2007-01-30  Richard Guenther  <rguenther@suse.de>
3038
3039         PR middle-end/30313
3040         * passes.c (execute_one_pass): Reset in_gimple_form to not
3041         confuse non-unit-at-a-time mode.
3042
3043 2007-01-29  Roger Sayle  <roger@eyesopen.com>
3044             Richard Guenther  <rguenther@suse.de>
3045
3046         * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
3047         avoid undefined behaviour on overflow.  Use force_fit_type_double
3048         to construct the constant with the specified TREE_OVERFLOW.
3049
3050 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3051
3052         * config/dfp-bit.c: Add parameterized support for fp exceptions.
3053         * config/dfp-bit.h: Ditto.
3054
3055 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3056
3057         * c-decl.c (pop_scope): Replace warnings with call to
3058         warn_for_unused_label.
3059         * c-common.h (warn_for_unused_label): Declare.
3060         * c-common.c (warn_for_unused_label): Define.
3061
3062 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3063
3064         * tree-optimize.c (update_inlined_to_pointers): Delete unused
3065         function.
3066
3067 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3068
3069         * Makefile.in (USER_H): Remove decfloat.h.
3070         * ginclude/decfloat.h: Delete, moving contents to ...
3071         * ginclude/float.h: Add support for decimal floating point,
3072         guarded by __STDC_WANT_DEC_FP__.
3073
3074 2007-01-29  Mike Stump  <mrs@apple.com>
3075
3076         * doc/gccint.texi (Top): Rename Loop Representation to Loop
3077         Analysis and Representation to resolve case insensitive conflict.
3078         * doc/loop.texi (Loop Analysis and Representation): Likewise.
3079
3080 2007-01-28  Daniel Berlin  <dberlin@dberlin.org>
3081
3082         * tree.h (struct tree_memory_tag): Add aliases member.
3083         (MTAG_ALIASES): New macro.
3084         * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
3085         (add_may_alias): Remove pointer-set. Update for may_aliases being
3086         a bitmap.
3087         (mark_aliases_call_clobbered): Update for may_aliases being a
3088         bitmap.
3089         (compute_tag_properties): Ditto.
3090         (create_partition_for): Ditto.
3091         (compute_memory_partitions): Ditto.
3092         (dump_may_aliases_for): Ditto.
3093         (is_aliased_with): Ditto.
3094         (add_may_alias_for_new_tag): Ditto.
3095         (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
3096         (compute_is_aliased): New function.
3097         (compute_may_aliases): Call compute_is_aliased).
3098         (init_alias_info): Initialize alias_bitmap_obstack.
3099         (union_alias_set_into): New function.
3100         (compute_flow_sensitive_aliasing): Use union_aliases_into.
3101         (have_common_aliases_p): Rewrite to take two bitmaps and use
3102         intersection.
3103         (compute_flow_insensitive_aliasing): Stop using pointer-sets.
3104         Update for bitmaps.
3105         (finalize_ref_all_pointers): Update for add_may_alias changes.
3106         (new_type_alias): Ditto.
3107         * tree-flow-inline.h (may_aliases): Return a bitmap.
3108         * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
3109         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
3110         may_aliases being a bitmap.
3111         * tree-flow.h (struct var_ann_d): Remove may_aliases member.
3112         may_aliases now returns a bitmap.
3113         * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
3114         being a bitmap.
3115         * tree-ssa-operands.c (add_virtual_operand): Update for
3116         may_aliases being a bitmap.
3117
3118 2007-01-29  Daniel Berlin  <dberlin@dberlin.org>
3119
3120         PR tree-optimization/30630
3121         * tree-ssa-structalias.c (do_complex_constraint): Mark correct
3122         variable as changed.
3123
3124 2007-01-29  Simon Martin  <simartin@users.sourceforge.net>
3125
3126         PR c++/28266
3127         * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
3128         expanded only once even if an error occurs.
3129
3130 2007-01-29  Ben Elliston  <bje@au.ibm.com>
3131
3132         * gcov-io.h (__gcov_indirect_call_profiler): Declare.
3133         (__gcov_average_profiler): Likewise.
3134         (__gcov_ior_profiler): Likewise.
3135         (__gcov_merge_ior): Likewise.
3136
3137 2007-01-28  Jan Hubicka  <jh@suse.cz>
3138
3139         * builtins.c (expand_builtin_memset): Fix typo in my last patch.
3140         * value-prof.c (stringop_block_profile): Likewise.
3141
3142 2007-01-28  Jan Hubicka  <jh@suse.cz>
3143
3144         * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
3145         variant handling histograms; add wrapper.
3146         (clear_storage_via_libcall): Export.
3147         (emit_block_move_hints): Break out from ...; add histograms.
3148         (emit_block_move): ... this one.
3149         (clear_storage_hints): Break out from ...; add histograms.
3150         (clear_storage): ... this one.
3151         (set_storage_via_memset): Handle histogram.
3152         * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
3153         (clear_storage_hints, clear_storage_via_libcall): Declare.
3154         (set_storage_via_setmem): Update prototype.
3155         * doc/md.texi (movmem, setmem): Document new arguments.
3156
3157         * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
3158         new histograms.
3159         (stringop_block_profile): New global function.
3160         (tree_stringops_values_to_profile): Profile block size and alignment.
3161         * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
3162         HIST_TYPE_IOR.
3163         (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
3164         (stringop_block_profile): Declare.
3165         * builtins.c: Include value-prof.h.
3166         (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
3167         * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
3168         (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
3169         (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
3170         * profile.c (instrument_values): Add new counters.
3171         * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
3172         calls.
3173         * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
3174         (tree_init_edge_profiler): Build new profilers.
3175         (tree_gen_average_profiler, tree_gen_ior_profiler): New.
3176         (pass_tree_profile): Add dump.
3177         (tree_profile_hooks): Update.
3178         * Makefile.in (LIBGCOV): Add new constants.
3179         * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
3180         __gcov_ior_profiler): New.
3181         * i386.md (movmem/setmem expanders): Add new optional arguments.
3182
3183 2007-01-28  David Edelsohn  <edelsohn@gnu.org>
3184
3185         * doc/md.texi (Standard Pattern Names): Document blockage pattern.
3186
3187 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3188
3189         * tree-ssa-loop-unswitch.c: Include tree-inline.h.
3190         (tree_unswitch_single_loop): Pass eni_size_weights to
3191         tree_num_loop_insns.
3192         * tree-ssa-loop-manip.c: Include tree-inline.h.
3193         (can_unroll_loop_p): Pass eni_size_weights to
3194         tree_num_loop_insns.
3195         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
3196         Pass eni_size_weights to estimate_num_insns.
3197         * tree.h (init_inline_once): Export.
3198         * toplev.c (backend_init): Call init_inline_once.
3199         * cgraphunit.c (cgraph_process_new_functions,
3200         cgraph_analyze_function): Pass eni_inlining_weights to
3201         estimate_num_insns.
3202         * ipa-inline.c (compute_inline_parameters): Ditto.
3203         * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
3204         to estimate_num_insns.
3205         (try_unroll_loop_completely): Pass eni_size_weights to
3206         tree_num_loop_insns.
3207         * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
3208         ot estimate_num_insns.
3209         * tree-ssa-loop-prefetch.c: Include tree-inline.h.
3210         (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
3211         * tree-inline.c (eni_inlining_weights, eni_size_weights,
3212         eni_time_weights): New variables.
3213         (init_inline_once): Initialize them.
3214         (struct eni_data): Mew.
3215         (estimate_num_insns_1, estimate_num_insns): Use weights.
3216         * tree-inline.h (struct eni_weights_d): New.
3217         (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
3218         (estimate_num_insns): Declaration changed.
3219         * cfgloop.h (tree_num_loop_insns): Declaration changed.
3220         * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
3221         tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.
3222
3223 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3224
3225         * tree-data-ref.c (conflict_fn): Assert that the number of affine
3226         relations in the conflict function is valid.
3227
3228 2007-01-27  Ian Lance Taylor  <iant@google.com>
3229
3230         * common.opt: Add fstrict-overflow.
3231         * opts.c (decode_options): Set flag_strict_overflow if -O2.
3232         * flags.h (TYPE_OVERFLOW_WRAPS): Define.
3233         (TYPE_OVERFLOW_UNDEFINED): Define.
3234         (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
3235         Replace all uses.
3236         * tree.h (TYPE_TRAP_SIGNED): Don't define.
3237         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
3238         (fold_negate_expr): Likewise.
3239         (make_range): Likewise.
3240         (extract_muldiv_1): Likewise.
3241         (maybe_canonicalize_comparison): Likewise.
3242         (fold_comparison): Likewise.
3243         (fold_binary): Likewise.
3244         (tree_expr_nonnegative_p): Likewise.
3245         (tree_expr_nonzero_p): Likewise.
3246         * tree-vrp.c (compare_values): Likewise.
3247         (extract_range_from_binary_expr): Likewise.
3248         (extract_range_from_unary_expr): Likewise.
3249         * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
3250         Likewise.
3251         (nowrap_type_p): Likewise.
3252         * tree-scalar-evolution.c (simple_iv): Likewise.
3253         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
3254         (build_range_check): Likewise.
3255         (extract_muldiv_1): Likewise.
3256         (fold_comparison): Likewise.
3257         * tree-vrp.c (vrp_int_const_binop): Likewise.
3258         (extract_range_from_unary_expr): Likewise.
3259         * convert.c (convert_to_integer): Likewise.
3260         * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
3261         (fold_comparison): Likewise.
3262         (fold_binary): Likewise.
3263         * optabs.c (optab_for_tree_code): Likewise.
3264         * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
3265         * simplify-rtx.c (simplify_const_relational_operation): Check
3266         flag_strict_overflow and flag_trapv.
3267         (simplify_const_relational_operation): Likewise.
3268         * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
3269         (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
3270         -fstrict-overflow.
3271
3272 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3273
3274         * tree.c (tree_fold_gcd): Delete.
3275         * tree.h (tree_fold_gcd): Remove prototype.
3276         * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
3277         test whether one constant integer is a multiple of another.  Instead
3278         call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
3279         * fold-const.c (multiple_of_p):  We've determined both TOP and
3280         BOTTOM are integer constants so we can call int_const_binop directly
3281         instead of the more generic const_binop.
3282
3283 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3284
3285         * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
3286         1*X check that the constant hasn't overflowed, to preserve the
3287         TREE_OVERFLOW bit.
3288         (round_up): Provide an efficient implementation when rouding-up an
3289         INTEGER_CST to a power-of-two.
3290
3291 2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3292
3293         * doc/sourcebuild.texi: Add comma for clarity.
3294         * doc/extend.texi: Fix some typos.
3295         * doc/passes.texi: Likewise.
3296         * doc/cppinternals.texi: Likewise.
3297         * doc/c-tree.texi: Likewise.
3298         * doc/tree-ssa.texi: Likewise.
3299         * doc/install.texi: Likewise.
3300
3301 2007-01-27  Jan Hubicka  <jh@suse.cz>
3302
3303         * tree-sra.c (sra_walk_function): Don't rely on aliases being build.
3304         (pass_sra): Do not require alias information.
3305         * passes.c (init_optimization_passes): Add SRA
3306
3307 2007-01-27  Steven Bosscher  <steven@gcc.gnu.org>
3308
3309         * tracer.c (rest_of_handle_tracer): We already cleaned
3310         up the CFG in tracer() so don't do it here again.
3311         * cfgcleanup.c (rest_of_handle_jump2): Don't repeat
3312         cleanup_cfg here, either.  And don't call renumber_insns.
3313
3314         * cfgrtl.c (rtl_verify_flow_info_1): Don't verify that BB_END
3315         and BB_HEAD are in the insn stream here.  Instead make sure
3316         that BB_INSN is valid on all insns.  Also, do check here that
3317         there are no pending branch predictions...
3318         (rtl_verify_flow_info): ...instead of doing it here.  Checks
3319         for BB_END and BB_HEAD moved from rtl_verify_flow_info_1 to
3320         here.
3321
3322 2007-01-26  Roger Sayle  <roger@eyesopen.com>
3323
3324         * config/i386/i386.c (ix86_swap_binary_operands_p): New helper
3325         function to simplify/factorize operand order canonicalization.
3326         (ix86_fixup_binary_operands): Reorganize using the above function.
3327         (ix86_binary_operator_ok): Likewise.
3328
3329 2007-01-27  Jakub Jelinek  <jakub@redhat.com>
3330
3331         * genattrtab.c (struct attr_value_list, insn_code_values): Move to
3332         file scope from optimize_attrs.
3333         (simplify_test_exp): If insn_code_values is not NULL, use it to speed
3334         up search.
3335         (optimize_attrs): Clear insn_code_values after freeing it.
3336
3337 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3338
3339         * tree-ssa-address.c (create_mem_ref): Remove ", bsi" from
3340         a parts.base assignment.
3341
3342 2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>
3343
3344         * tree-data-ref.c (dump_subscript): Use dump_conflict_function.
3345         (compute_subscript_distance, initialize_data_dependence_relation,
3346         finalize_ddr_dependent, analyze_ziv_subscript,
3347         analyze_siv_subscript_cst_affine,
3348         compute_overlap_steps_for_affine_univar,
3349         compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
3350         analyze_siv_subscript, analyze_miv_subscript,
3351         analyze_overlapping_iterations, subscript_dependence_tester_1,
3352         compute_self_dependence, free_dependence_relation): Work
3353         with affine_fn instead of chrecs.
3354         (dump_affine_function, dump_conflict_function, affine_function_equal_p,
3355         common_affine_function, affine_function_base,
3356         affine_function_constant_p, affine_fn_op, affine_fn_plus,
3357         affine_fn_minus, affine_fn_free, conflict_fn_not_known,
3358         conflict_fn_no_dependence, free_conflict_function, free_subscripts,
3359         conflict_fn, affine_fn_cst, affine_fn_univar): New functions.
3360         (all_chrecs_equal_p): Removed.
3361         * tree-data-ref.h (affine_fn, conflict_function): New types.
3362         (struct subscript): Change type of conflicting_iterations_in_a
3363         and conflicting_iterations_in_b.
3364
3365 2007-01-26  Steve Ellcey  <sje@cup.hp.com>
3366
3367         PR other/30182
3368         * config/pa/pa.h (TARGET_HPUX_11): New.
3369         * config/pa/pa-hpux11.h (TARGET_HPUX_11): New.
3370         * config/pa/pa.c (pa_init_builtins): Use TARGET_HPUX_11.
3371
3372 2007-01-26  Daniel Berlin  <dberlin@dberlin.org>
3373         Richard Guenther  <rguenther@suse.de>
3374
3375         * tree-ssa-structalias.c (solve_graph): Handle case
3376         we merged the variable to another.
3377
3378 2007-01-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3379
3380         * builtins.c (fold_builtin_1): Treat ccos and ccosh as 'even'
3381         functions.
3382
3383         * fold-const.c (negate_mathfn_p): Treat casin, casinh, catan,
3384         catanh, cproj, csin, csinh, ctan and ctanh as 'odd' functions.
3385
3386 2007-01-25  DJ Delorie  <dj@redhat.com>
3387
3388         * config/m32c/m32c.c (m32c_cannot_change_mode_class): We don't
3389         allow changes to modes which don't fit in those registers.
3390
3391         * reload1.c (choose_reload_regs): Check for invalid subregs before
3392         computing their locations, not after.
3393
3394 2007-01-25  Geoffrey Keating  <geoffk@apple.com>
3395
3396         PR 25127
3397         * config/rs6000/rs6000.c (first_altivec_reg_to_save): On Darwin,
3398         save Altivec registers in an eh_return function.
3399         (compute_vrsave_mask): Likewise.
3400         (rs6000_stack_info): Correct AIX/Darwin stack alignment computation
3401         for saving Altivec registers.
3402         (rs6000_emit_prologue): Don't allocate stack twice in
3403         eh_return function.  Correct expected value of altivec_save_offset
3404         when using save_world.  Describe save of R0 to stack when using
3405         save_world.  Describe stack pointer adjustment when using
3406         save_world.  Remove duplicated eh_return parameter register saving.
3407         Update sp_offset variable after save_world.
3408         * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA): Remove
3409         darwin-world.asm.
3410         (LIB2FUNCS_EXTRA): Add darwin-world.asm.
3411         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): -m64