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1 2007-03-13  Uros Bizjak  <ubizjak@gmail.com>
2
3         * config/i386/i386.opt (mcx16, msahf): New options.
4         * config/i386/i386.c (x86_cmpxchg16b, x86_sahf): Remove.
5         (ix86_tune_features) [X86_TUNE_USE_SAHF]: Enable for m_GENERIC.
6
7         * config/i386/driver-i386.c (bit_LAHF_LM): New define.
8         (host_detect_local_cpu): Detect cx16 and lahf_lm cpuid bits.
9         Output -mcx16 and -msahf options when corresponding bit is set.
10
11         * doc/invoke.texi (i386 and x86-64 Options): Document -mcx16
12         and -msahf options.
13
14 2007-03-13  Alexandre Oliva  <aoliva@redhat.com>
15
16         * configure.ac: Test for assembler tolerance to # 0 "".
17         * configure, config.in: Rebuilt.
18         * final.c (final_scan_insn): Emit it if HAVE_AS_LINE_ZERO.
19
20 2007-03-13  Geoffrey Keating  <geoffk@apple.com>
21
22         * doc/invoke.texi (Spec Files): Update for '%{,' spec.
23
24         * config/rs6000/darwin-fallback.c: Compile file only on powerpc.
25         (handle_syscall): Handle direct system calls.
26         * config/rs6000/darwin.h (HAS_MD_FALLBACK_FRAME_STATE_FOR): Delete.
27
28 2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>
29
30         * doc/invoke.texi: Fix cpp.info cross-reference.
31         * doc/passes.texi: Fix gcc.info cross-reference.
32
33 2007-03-12  Zdenek Dvorak  <dvorakz@suse.cz>
34
35         PR tree-optimization/30835
36         * lambda-code.c (can_convert_to_perfect_nest): Check whether
37         bb_for_stmt is not NULL before accessing it.
38
39 2007-03-12  Joseph Myers  <joseph@codesourcery.com>
40
41         * gcc.c (main): Handle target_sysroot_hdrs_suffix being NULL for
42         some multilibs.
43
44 2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>
45
46         PR 30635
47         * doc/install.texi: Document --enable-stage1-languages
48
49 2007-03-12  Steven Bosscher  <steven@gcc.gnu.org>
50
51         * tree-pass.h (pass_into_cfg_layout_mode,
52         pass_outof_cfg_layout_mode): Declare.
53         * cfglayout.c (into_cfg_layout_mode, outof_cfg_layout_mode,
54         pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode): New.
55         * passes.c (pass_into_cfg_layout_mode): Schedule before jump2.
56         (pass_outof_cfg_layout_mode): Schedule after pass_rtl_ifcvt.
57
58 2007-03-12  Seongbae Park <seongbae.park@gmail.com>
59
60         * c-decl.c (warn_variable_length_array): New function.
61         Refactored from grokdeclarator to handle warn_vla
62         and handle unnamed array case.
63         (grokdeclarator): Refactored VLA warning case.
64         * c.opt (Wvla): New flag.
65         * doc/invoke.texi (Wvla): New warning.
66
67 2007-03-12  Richard Henderson  <rth@redhat.com>
68
69         * config/alpha/alpha.c (alpha_elf_section_type_flags): New.
70         (TARGET_SECTION_TYPE_FLAGS): New.
71
72 2007-03-12  Richard Henderson  <rth@redhat.com>
73
74         * config/darwin.c (machopic_reloc_rw_mask): New.
75         * config/darwin-protos.h (machopic_reloc_rw_mask): Declare.
76         * config/darwin.h (TARGET_ASM_RELOC_RW_MASK): New.
77
78 2007-03-12  Mark Mitchell  <mark@codesourcery.com>
79
80         * cppdefault.c (cpp_EXEC_PREFIX): New variable.
81         * cppdefault.h (cpp_PREFIX): Document.
82         (cpp_PREFIX_len): Likewise.
83         (cpp_EXEC_PREFIX): New variable.
84         * Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX.
85         * c-incpath.c (add_standard_paths): Correct logic for relocating
86         paths within prefix.
87
88 2007-03-12  Uros Bizjak  <ubizjak@gmail.com>
89
90         * config/i386/i386.md (fixuns_trunc<mode>hi2): Implement from
91         fixuns_truncsfhi2 and fixuns_truncdfhi2 using SSEMODEF
92         mode macro.
93         (fix_trunc<mode>di_sse): Implement from fix_truncsfdi_sse and
94         fix_truncdfdi_sse using SSEMODEF mode macro.
95         (fix_trunc<mode>si_sse): Implement from fix_truncsfsi_sse and
96         fix_truncdfsi_sse using SSEMODEF mode macro.
97         (fix_trunc?f?i_sse peephole2): Implement using SSEMODEF mode macro.
98         (fix_trunc?f?i_sse K8 peephole2): Fix register constraint.
99
100 2007-03-12  Richard Sandiford  <richard@codesourcery.com>
101
102         * config.gcc (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add
103         elfos.h to tm_file.
104
105 2007-03-12  Olga Golovanevsky  <olga@il.ibm.com>
106   
107         * tree.h : Add multiple_of_p declaration.
108         * fold-const.c (multiple_of_p): Make multiple_of_p public. 
109         * ipa-type-escape.c (results_of_malloc): Redundant.
110         (visited_stmts): New. Visited stmt for walk_use_def_chains.
111         (cast_type): Extended with new members.
112         (check_cast): Returns cast_type.
113         (cast): New structure for data of walk_use_def_chains.
114         (is_malloc_result, is_cast_from_non_pointer_1,
115         is_cast_from_non_pointer, 
116         is_array_access_through_pointer_and_index): New functions.
117         (look_for_casts): Returns cast types.
118         (check_call): Returns void.
119         (okay_pointer_operation): Use support of pointer plus index,
120         pointer plus constant and allow all multiplications.
121         
122 2007-03-11  Richard Guenther  <rguenther@suse.de>
123
124         PR tree-optimization/31115
125         * tree-vrp.c (extract_range_from_binary_expr): Make sure
126         the shift count is positive and non-anti-range for RSHIFT_EXPR.
127         A shift count of zero is not special as with *_DIV_EXPR.
128         (vrp_int_const_binop): Handle RSHIFT_EXPR for determining overflow
129         direction.
130
131 2007-03-11  Ian Lance Taylor  <iant@google.com>
132
133         * tree-vrp.c (vrp_int_const_binop): Handle PLUS_EXPR and
134         the *_DIV_EXPR codes correctly with overflow infinities.
135
136 2007-03-11  Ira Rosen  <irar@il.ibm.com>
137
138         * tree-data-ref.c (analyze_offset): Add a return value (bool) to 
139         indicate success/failure of the analysis. Add negation to subtrahend
140         in case of subtraction. Fail if both operands contain constants.
141         (create_data_ref): Fail if analyze_offset fails.
142
143 2007-03-11  Uros Bizjak  <ubizjak@gmail.com>
144
145         * config/i386/i386.md (frndintxf2): Rename to ...
146         (rintxf2): ... this. Remove expander having same name.
147         (rintsf2, rintdf2): Implement using SSEMODEF macro.
148         (roundsf2, rounddf2): Ditto.
149         (lrint<mode>di2, lrint<mode>si2): Implement using SSEMODEI24 macro.
150         (lround<mode>di2, lround<mode>si2): Ditto.
151
152 2007-03-11  Steven Bosscher  <steven@gcc.gnu.org>
153
154         * lower-subreg.c: Include except.h.
155         (decompose_multiword_subregs): Verify that the only control flow
156         insns we can split are loads to multi-words pseudos.
157         Handle breaking such blocks after splitting, instead of calling
158         find_many_sub_basic_blocks.
159
160         * loop-unroll.c (split_edge_and_insert): Don't set BB_SUPERBLOCK
161         on the new basic block.  Add a lengthy comment explaining why we
162         thought this was necessary.
163         * cfglayout.c (cfg_layout_finalize): Don't break superblocks.
164
165 2007-03-10  Mark Mitchell  <mark@codesourcery.com>
166
167         PR c++/30924
168         * tree.c (walk_type_fields): Recurse into the element type of
169         ARRAY_TYPEs if there is a pointer set.
170
171 2007-03-10  Dirk Mueller  <dmueller@suse.de>
172
173         * c-common.c (warn_logical_operator): Fix condition.
174
175 2007-03-10  Tobias Schl├╝ter  <tobi@gcc.gnu.org>
176
177         * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Add missing
178         quotation mark.
179         * config/darwin.c (machopic_select_section): Remove superfluous
180         argument in call to categorize_decl_for_section.  Remove unused
181         variable shlib.
182
183 2007-03-10  Joseph Myers  <joseph@codesourcery.com>
184
185         * configure.ac (glibc_header_dir): Set using with_build_sysroot if
186         defined.
187         * configure: Regenerate.
188
189 2007-03-10  Uros Bizjak  <ubizjak@gmail.com>
190
191         PR target/31101
192         * config/i386/i386.md (UNSPEC_C2_FLAG): New constant.
193         (fpremxf4_i387, fprem1xf4_i387): Use UNSPEC_C2_FLAG.
194         (fmodxf3, fmod<mode>3, remainderxf3, remainder<mode>3):
195         Add LABEL_NUSES to emitted label.
196         * config/i386/i386.c (ix86_emit_fp_unordered_jump): Add
197         branch probability value to emitted jump insn.
198         * reg-stack.c (subst_stack_regs_pat)[UNSPEC]: Handle UNSPEC_C2_FLAG.
199         Do not check life information and do not re-arrange input operands
200         for UNSPEC_FSCALE_EXP, UNSPEC_FPREM_U and UNSPEC_FPREM1_U.
201
202 2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>
203
204         * config/sh/sh.c (sh_insn_length_adjustment): Adjust for
205         the change of decode_asm_operands.
206
207 2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>
208
209         * mode-switching.c (create_pre_exit): Skip blockage insn.
210
211 2007-03-09  Diego Novillo  <dnovillo@redhat.com>
212
213         * tree-pass.h (TODO_update_smt_usage): Remove.
214         Update all users.
215         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Remove
216         argument SOME.
217         Update all users.
218
219 2007-03-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
220
221         * pa.c (attr_length_call): Revise condition for long pc-relative branch.
222         (output_call): Use "LONG_PIC_SDIFF" instruction sequence for long local
223         calls on the SOM target.  Don't use "LONG_PIC_PCREL" call sequence on
224         SOM target.
225
226 2007-03-09  Geoffrey Keating  <geoffk@apple.com>
227
228         * gcc.c: Document %{, in big comment at top.
229         (input_suffix_matches): Remove special handling for .s and
230         .S.
231         (input_spec_matches): New.
232         (handle_braces): Handle %{,.
233         (validate_switches): ',' indicates a value which is not a switch.
234         * config/alpha/osf.h (ASM_FINAL_SPEC): Use %{, rather than %{.
235         to detect assembler input.
236         * config/i386/sol2.h (CPP_SPEC): Likewise.
237         * config/rs6000/sysv4.h (ASM_SPEC): Likewise.
238         * config/rs6000/vxworks.h (ASM_SPEC): Likewise.
239         * config/rs6000/lynx.h (ASM_SPEC): Likewise.
240         * config/rs6000/linux64.h (ASM_SPEC_COMMON): Likewise.
241         * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Objective-C plus
242         -m64 causes deployment target to default to 10.5.
243         * config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.
244
245 2007-03-09  Richard Henderson  <rth@redhat.com>
246
247         PR target/26090
248         * target.h (targetm.asm.out.reloc_rw_mask): New.
249         * target-def.h (TARGET_ASM_RELOC_RW_MASK): New.
250         (TARGET_ASM_OUT): Use it.
251         * targhooks.c, targhooks.h (default_reloc_rw_mask): New.
252         * varasm.c (categorize_decl_for_section): Remove shlib argument;
253         use the new reloc_rw_mask target hook instead.
254         (default_section_type_flags_1): Merge into...
255         (default_section_type_flags): ... here.
256         (decl_readonly_section_1): Merge into...
257         (decl_readonly_section): ... here.
258         (default_elf_select_section_1): Merge into...
259         (default_elf_select_section): ... here.
260         (default_unique_section_1): Merge into...
261         (default_unique_section): ... here.
262         (compute_reloc_for_rtx_1, compute_reloc_for_rtx): New.
263         (default_select_rtx_section): Use it.
264         (default_elf_select_rtx_section): Likewise.
265         * output.h: Update to match.
266         * doc/tm.texi (TARGET_ASM_RELOC_RW_MASK): New.
267         * config/alpha/alpha.c (alpha_elf_reloc_rw_mask): New.
268         (TARGET_ASM_RELOC_RW_MASK): New.
269         * config/i386/i386.c (x86_64_elf_select_section): Adjust call
270         to categorize_decl_for_section.
271         (x86_64_elf_unique_section): Likewise.
272         * config/ia64/hpux.h (TARGET_ASM_SELECT_SECTION,
273         TARGET_ASM_UNIQUE_SECTION, TARGET_ASM_SELECT_RTX_SECTION): Remove.
274         (TARGET_ASM_RELOC_RW_MASK): New.
275         * config/ia64/ia64.c (ia64_rwreloc_select_section,
276         ia64_rwreloc_unique_section, ia64_rwreloc_select_rtx_section): Remove.
277         (ia64_hpux_reloc_rw_mask, ia64_reloc_rw_mask): New.
278         (TARGET_RWRELOC): Remove.
279         (ia64_section_type_flags): Adjust call to default_section_type_flags.
280         * config/ia64/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
281         * config/rs6000/rs6000.c (rs6000_elf_section_type_flags): Remove.
282         (rs6000_elf_select_section, rs6000_elf_unique_section): Remove.
283         (rs6000_elf_reloc_rw_mask, rs6000_xcoff_reloc_rw_mask): New.
284         (rs6000_xcoff_select_section): Use decl_readonly_section.
285         (rs6000_xcoff_section_type_flags): Use default_section_type_flags.
286         * config/rs6000/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
287         (TARGET_ASM_SELECT_SECTION, TARGET_ASM_UNIQUE_SECTION): Remove.
288         (TARGET_SECTION_TYPE_FLAGS): Remove.
289         * config/rs6000/xcoff.h (TARGET_ASM_RELOC_RW_MASK): New.
290
291 2007-03-09  Roger Sayle  <roger@eyesopen.com>
292
293         * fold-const.c (fold_comparison): Remove compile-time evaluation of
294         complex constant equality/inequality comparisons for here.
295         (fold_binary) <EQ_EXPR>: Simplify complex comparisons that are
296         known at compile-time or can be simplified to a scalar comparison.
297         (fold_relational_const): Move compile-time evaluation of complex
298         constant equality/inequality comparisons to here.
299
300 2007-03-09  Alexandre Oliva  <aoliva@redhat.com>
301
302         PR rtl-optimization/30643
303         * cse.c (cse_insn): Recompute dest_hash after insert_regs for
304         dest_addr_elt.
305         (fold_rtx): Recurse, like before 2006-11-03.
306
307 2007-03-09  DJ Delorie  <dj@redhat.com>
308
309         * config/m32c/t-m32c (m32c-pragma.o): Add TM_H dependency to
310         m32c-pragma.o.
311
312 2007-03-09  Aldy Hernandez  <aldyh@redhat.com>
313
314         PR tree-optimization/30375
315         * tree-ssa-dse.c (dse_possible_dead_store_p): Do not eliminate if
316         LHS of statements is not the same.
317         * testsuite/gcc.dg/tree-ssa/ssa-dse-10.c: New.
318
319 2007-03-09  Chao-ying Fu  <fu@mips.com>
320
321         * doc/extend.texi (MIPS DSP Built-in Functions): Document the DSP
322         REV 2.
323         * doc/invoke.texi (-mdspr2): Document new option.
324         * config/mips/mips.md (UNSPEC_ABSQ_S_QB .. UNSPEC_DPSQX_SA_W_PH):
325         New unspec for DSP REV 2.
326         (<u>mulsidi3_32bit_internal): Check if !TARGET_DSPR2, because
327         these instructions are extended in DSP REV 2.
328         (mips-dspr2.md): Include.
329         * config/mips/mips.opt (mdspr2): New option.
330         * config/mips/mips.c (mips_function_type): Add MIPS_V4QI_FTYPE_V4QI,
331         MIPS_SI_FTYPE_SI_SI_SI, MIPS_DI_FTYPE_DI_USI_USI, MIPS_DI_FTYPE_SI_SI,
332         MIPS_DI_FTYPE_USI_USI, MIPS_V2HI_FTYPE_SI_SI_SI.
333         (override_options): Check TARGET_DSPR2 to enable MASK_DSP.
334         (CODE_FOR_mips_mul_ph): Define it to CODE_FOR_mulv2hi3.
335         (dsp_bdesc): Add DSP REV 2 builtins.  Remove 32-bit only DSP builtins.
336         (dsp_32only_bdesc): New description table for 32-bit only DSP REV 1
337         and 2 builtins.
338         (bdesc_map): Add one field of unsupported_target_flags.
339         (bdesc_arrays):  Update entries to have extra fields.  Add
340         dsp_32only_bdesc.
341         (mips_init_builtins): Initialize new function types.
342         Check unsupported_target_fileds to filter out builtins.
343         * config/mips/mips.h (TARGET_CPU_CPP_BUILTINS): Define __mips_dspr2 if
344         TARGET_DSPR2.
345         (ASM_SPEC): Pass mdspr2 to the assembler.
346         * config/mips/mips-dspr2.md: New file.
347
348 2007-03-09  Sa Liu  <saliu@de.ibm.com>
349
350         * config/rs6000/altivec.md: Fix vcond patterns using if_then_else.
351
352 2007-03-09  Ian Lance Taylor  <iant@google.com>
353
354         * opts.c (common_handle_option): Treat -Wstrict-overflow (with no
355         argument) like -Wstrict-overflow=2.
356         * doc/invoke.texi (Warning Options): Update documentation.
357
358 2007-03-09  Dirk Mueller  <dmueller@suse.de>
359
360         PR c++/17946
361         * doc/invoke.texi (-Wlogical-op): Document.
362         * common.opt (-Wlogical-op): New.
363         * c-common.h (warn_logical_operator): Declare.
364         * c-common.c (warn_logical_operator): Define.
365         * c-typeck.c (parser_build_binary_op): Call
366         warn_logical_operator.
367
368 2007-03-09  Alexandre Oliva  <aoliva@redhat.com>
369
370         * rtl.h (gen_rtx_ASM_INPUT): Use "" instead of NULL file name.
371         * final.c (final_scan_insn): Test for non-"" file name.
372
373 2007-03-09  Sebastian Pop  <sebastian.pop@inria.fr>
374
375         * doc/loop.texi: Document the Omega linear constraints solver.
376         * doc/invoke.texi: Document -fcheck-data-deps, omega-max-vars,
377         omega-max-geqs, omega-max-eqs, omega-max-wild-cards, 
378         omega-hash-table-size, omega-max-keys, and 
379         omega-eliminate-redundant-constraints.
380         * tree-pass.h (pass_check_data_deps): Declared.
381         * omega.c: New.
382         * omega.h: New.
383         * timevar.def (TV_CHECK_DATA_DEPS): Declared.
384         * tree-ssa-loop.c (check_data_deps, gate_check_data_deps, 
385         pass_check_data_deps): New.
386         * tree-data-ref.c (init_data_ref): Remove declaration.
387         (dump_data_dependence_relation): Dump DDR_INNER_LOOP.
388         (analyze_array): Renamed init_array_ref, move up initializations.
389         (init_data_ref): Renamed init_pointer_ref.  Moved before its call.
390         Removed arguments that are set to NULL.
391         (analyze_indirect_ref): Correct indentation, correct call to 
392         init_pointer_ref.
393         (object_analysis): Call init_array_ref instead of analyze_array.
394         (initialize_data_dependence_relation): Initialize DDR_INNER_LOOP.
395         (access_functions_are_affine_or_constant_p): Use DR_ACCESS_FNS instead
396         of DR_ACCESS_FNS_ADDR.
397         (init_omega_eq_with_af, omega_extract_distance_vectors, 
398         omega_setup_subscript, init_omega_for_ddr_1, init_omega_for_ddr,
399         ddr_consistent_p): New.
400         (compute_affine_dependence): Check consistency of ddrs when 
401         flag_check_data_deps is passed.
402         (analyze_all_data_dependences): Uncomment.
403         (tree_check_data_deps): New.
404         * tree-data-ref.h: Include omega.h.
405         (DR_ACCESS_FNS_ADDR): Removed.
406         (data_dependence_relation): Add inner_loop.
407         (DDR_INNER_LOOP): New.
408         * common.opt (fcheck-data-deps): New.
409         * tree-flow.h (tree_check_data_deps): Declare.
410         * Makefile.in (TREE_DATA_REF_H): Depend on omega.h.
411         (OBJS-common): Depend on omega.o.
412         (omega.o): Define.
413         * passes.c (pass_check_data_deps): Scheduled.
414         * params.def (PARAM_OMEGA_MAX_VARS, PARAM_OMEGA_MAX_GEQS, 
415         PARAM_OMEGA_MAX_EQS, PARAM_OMEGA_MAX_WILD_CARDS,
416         PARAM_OMEGA_HASH_TABLE_SIZE, PARAM_OMEGA_MAX_KEYS,
417         PARAM_VECT_MAX_VERSION_CHECKS,
418         PARAM_OMEGA_ELIMINATE_REDUNDANT_CONSTRAINTS): New.
419
420 2007-03-09  Richard Guenther  <rguenther@suse.de>
421
422         PR tree-optimization/30904
423         PR middle-end/31058
424         * tree-vrp.c (extract_range_from_binary_expr): Handle RSHIFT_EXPR
425         the same way as *_DIV_EXPR.
426
427 2007-03-09  Alexandre Oliva  <aoliva@redhat.com>
428
429         * recog.c (decode_asm_operands): No mixed declarations and code.
430
431 2007-03-09  Alexandre Oliva  <aoliva@redhat.com>
432
433         * rtl.def (ASM_INPUT): Add location.
434         * rtl.h (ASM_INPUT_SOURCE_LOCATION): New.
435         (ASM_INPUT_SOURCE_FILE, ASM_INPUT_SOURCE_LINE): New.
436         (decode_asm_operands): Add loc operand.
437         (gen_rtx_ASM_INPUT, gen_rtx_ASM_INPUT_loc): Define.
438         * stmt.c (expand_asm): Rename to...
439         (expand_asm_loc): ... this.  Add locus argument.  Pass it on to
440         gen_rtx_ASM_INPUT_loc.
441         (expand_asm_expr): Adjust.
442         * recog.c (decode_asm_operands): Add loc operand.
443         (check_asm_operands, extract_insn): Adjust.
444         * reload1.c (maybe_fix_stack_asms): Likewise.
445         * final.c (asm_insn_count): Likewise.
446         (final_scan_insn): Output # line before and after asm.
447
448 2007-03-09  Daniel Berlin  <dberlin@dberlin.org>
449
450         * tree-ssa-structalias.c (variable_info): Remove
451         finished_solution.
452         (new_var_info): Ditto.
453         (shared_bitmap_info_t): New structure.
454         (shared_bitmap_table): New variable.
455         (shared_bitmap_hash): New function.
456         (shared_bitmap_eq): Ditto
457         (shared_bitmap_lookup): Ditto.
458         (shared_bitmap_add): Ditto.
459         (merge_smts_into): Change to take bitmap directly.
460         (find_what_p_points_to): Rewrite to use shared bitmap hashtable.
461         (init_alias_vars): Init shared bitmap hashtable.
462         (delete_points_to_sets): Delete shared bitmap hashtable.
463         * tree-ssa-operands.c (add_virtual_operand): Partially revert the
464         is_aliased removal as a change that was still necessary was
465         deleted.
466
467 2007-03-09  Uros Bizjak  <ubizjak@gmail.com>
468
469         * config/i386/i386.h (override_options): Conditionally disable
470         x86_sahf for 64bit targets only.
471
472 2007-03-08  Andrew Pinski  <andrew_pinski@playstation.sony.com>
473
474         PR C/31072
475         * c-decl.c (merge_decls): Don't call make_var_volatile.
476         * varasm.c (make_var_volatile): Remove.
477         * output.h (make_var_volatile): Remove.
478
479 2007-03-08  Zdenek Dvorak  <dvorakz@suse.cz>
480
481         PR tree-optimization/31085
482         * tree-ssa-address.c (create_mem_ref): Fix test of type of base.
483
484 2007-03-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
485
486         * builtins.def (lceil, lceilf, lceill, lfloor, lfloorf, lfloorl,
487         llceil, llceilf, llceill, llfloor, llfloorf, llfloorl): Mark with
488         ATTR_CONST_NOTHROW_LIST.
489         
490         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
491         FIX_TRUNC_EXPR.
492
493 2007-03-08  Diego Novillo  <dnovillo@redhat.com>
494
495         * doc/tree-ssa.texi: Remove documentation for V_MUST_DEF.
496
497 2007-03-08  Geoffrey Keating  <geoffk@apple.com>
498
499         PR 31013
500         * gccspec.c (lang_specific_driver): Do nothing when NEXT_OBJC_RUNTIME
501         is declared.
502         * config/darwin.h (REAL_LIBGCC_SPEC): When -fgnu-runtime is
503         passed, use shared libgcc.
504
505 2007-03-08  Roger Sayle  <roger@eyesopen.com>
506
507         * tree-eh.c (do_return_redirection): Call build_gimple_modify_stmt
508         instead of calling build2 with a GIMPLE_MODIFY_STMT.
509         (honor_protect_cleanup_actions, lower_try_finally_switch):
510         Likewise.
511         * tree-if-conv.c (replace_phi_with_cond_gimple_modify_stmt,
512         ifc_temp_var): Likewise.
513         * tree-inline.c (setup_one_parameter): Likewise.
514         * tree-mudflap.c (mf_decl_cache_locals,
515         mf_build_check_statement_for): Likewise.
516         * tree-nested.c (init_tmp_var, save_tmp_var,
517         finalize_nesting_tree_1): Likewise.
518         * tree-outof-ssa.c (insert_copy_on_edge,
519         insert_backedge_copies): Likewise.
520         * tree-profile.c (tree_gen_edge_profiler,
521         tree_gen_ic_profiler): Likewise.
522         * tree-scalar-evolution.c (scev_const_prop): Likewise.
523         * tree-sra.c (sra_build_assignment): Likewise.
524         * tree-ssa-loop-im.c (determine_invariantness_stmt): Likewise.
525         * tree-ssa-math-opts.c (insert_reciprocals,
526         execute_cse_sincos_1): Likewise.
527         * tree-tailcall.c (adjust_accumulator_values,
528         adjust_return_value): Likewise.
529         * tree-vect-patterns.c (vect_pattern_recog_1): Likewise.
530         * tree-vect-transform.c (vect_create_data_ref_ptr,
531         bump_vector_ptr, vect_init_vector, get_initial_def_for_induction,
532         vect_create_epilog_for_reduction, vectorizable_reduction,
533         vectorizable_call, vectorizable_conversion,
534         vectorizable_assignment, vectorizable_operation,
535         vectorizable_type_demotion, vect_gen_widened_results_half,
536         vect_permute_store_chain, vectorizable_store,
537         vect_setup_realignment, vect_permute_load_chain,
538         vectorizable_load, vectorizable_condition,
539         vect_create_cond_for_align_checks): Likewise.
540         * tree-vrp.c (build_assert_expr_for): Likewise.
541
542 2007-03-08  Ian Lance Taylor  <iant@google.com>
543
544         * tree-vrp.c: Include "intl.h".
545         (usable_range_p): New static function.
546         (compare_values_warnv): Don't test TYPE_OVERFLOW_UNDEFINED for
547         overflowed values, juts set *strict_overflow_p.
548         (compare_values): Only return -2 if one of the operands is not a
549         constant.
550         (compare_ranges): Call usable_range_p.
551         (compare_range_with_value): Likewise.
552         (vrp_evaluate_conditional_warnv): Rename from
553         vrp_evaluate_conditional.  Make static.  Change all callers.
554         (vrp_evaluate_conditional): New function.
555         (simplify_div_or_mod_using_ranges): Issue warning about reliance
556         on signed overflow.
557         (simplify_abs_using_ranges): Likewise.
558         (simplify_stmt_for_jump_threading): Add within_stmt parameter.
559         * tree-ssa-dom.c (simplify_stmt_for_jump_threading): Add
560         within_stmt parameter.
561         * tree-ssa-propagate.c (fold_predicate_in): Update call to
562         vrp_evaluate_conditional.
563         * tree-ssa-threadedge.c
564         (record_temporary_equivalences_from_stmts_at_dest): Change
565         simplify parameter to take a second tree parameter.
566         (simplify_control_stmt_condition): Likewise.
567         (thread_across_edge): Likewise.
568         * tree-flow.h (vrp_evaluate_conditional): Update declaration.
569         (thread_across_edge): Likewise.
570         * gcc/Makefile.in (tree-vrp.o): Depend upon intl.h.
571
572 2007-03-08  Uros Bizjak  <ubizjak@gmail.com>
573
574         * config/i386/i386.h (TARGET_SAHF): New define.
575         * config/i386/i386.c (ix86_tune_features) [X86_TUNE_USE_SAHF]:
576         Also enable for m_K8, m_AMDFAM10 and m_CORE2.
577         (x86_sahf): New global variable.
578         (override_options): Add PTA_NO_SAHF to pta_flags enum.  Recode
579         pta_flags masks using shifts.  Add PTA_NO_SAHF to x86_64 and
580         nocona processor flags.  Set x86_sahf when PTA_NO_SAHF is not set
581         in processor flags.  Do not unconditionally disable TARGET_USE_SAHF
582         for 64-bit.
583         (ix86_fp_comparison_sahf_cost): Return high value for !TARGET_SAHF.
584         (ix86_expand_fp_compare): Check for TARGET_CMOVE or TARGET_SAHF
585         when expanding fcomi/sahf based tests.
586         (ix86_emit_fp_unordered_jump): Check for TARGET_SAHF when
587         expanding sahf based alternative. Emit sahf based sequence when
588         optimizing for code size.
589         * config/i386/i386.md (x86_sahf_1): Do not disable for
590         TARGET_64BIT, enable for TARGET_SAHF. 
591
592 2007-03-08  Martin Michlmayr  <tbm@cyrius.com>
593
594         * tree-ssa-coalesce.c (fail_abnormal_edge_coalesce): Remove
595         spurious whitespace from error message.
596
597 2007-03-08  Volker Reichelt  <reichelt@netcologne.de>
598
599         PR c++/30852
600         * c-common.c (fold_offsetof_1): Handle COMPOUND_EXPR.
601
602 2007-03-08  Alexandre Oliva  <aoliva@redhat.com>
603
604         * c-decl.c (grokdeclarator): Disable warnings for anonymous
605         bitfields.
606         * tree-sra.c (instantiate_element): Propagate disabled warnings
607         from the element itself to the created variable.
608
609 2007-03-07  Richard Henderson  <rth@redhat.com>
610
611         PR target/30848
612         * reg-stack.c (emit_swap_insn): If a malformed asm was seen,
613         silently fix up the stack in the case of a missing register.
614
615 2007-03-07  Paul Brook  <paul@codesourcery.com>
616
617         * config/arm/libunwind.S: Add .arch/.object_arch for armv4 builds.
618
619 2007-03-07  Joseph Myers  <joseph@codesourcery.com>
620
621         * config/arm/unwind-arm.c (struct wmmxd_regs, struct wmmxc_regs):
622         New.
623         (phase1_vrs): Use them.
624         (DEMAND_SAVE_WMMXD, DEMAND_SAVE_WMMXC): New.
625         (__gnu_Unwind_Save_WMMXD, __gnu_Unwind_Restore_WMMXD,
626         __gnu_Unwind_Save_WMMXC, __gnu_Unwind_Restore_WMMXC): Declare.
627         (restore_non_core_regs): Call __gnu_Unwind_Restore_WMMXD and
628         __gnu_Unwind_Restore_WMMXC if required.
629         (_Unwind_VRS_Pop): Implement iWMMXt support.
630         * config/arm/libunwind.S (gnu_Unwind_Restore_WMMXD,
631         gnu_Unwind_Save_WMMXD, gnu_Unwind_Restore_WMMXC,
632         gnu_Unwind_Save_WMMXC): Define.
633
634 2007-03-07  Richard Sandiford  <richard@codesourcery.com>
635
636         * config/vxworks.h (vxworks_override_options): Declare.
637         (VXWORKS_OVERRIDE_OPTIONS): Use it.
638         * config/vxworks.c: Include target.h and toplev.h.
639         (vxworks_override_options): New function.
640         * config/t-vxworks (vxworks.o): Depend on $(TARGET_H) and toplev.h.
641
642 2007-03-07  Andreas Krebbel  <krebbel1@de.ibm.com>
643
644         * config/s390/s390.c (override_options): Don't emit an error when
645         -mstack-size is used without providing -mstack-guard.
646         (s390_emit_prologue): Choose stack_guard value automatically if not
647         provided via command line.
648         * doc/invoke.texi: Adjust description of -mstack-guard and -mstack-size.
649
650 2007-03-07  Richard Sandiford  <richard@codesourcery.com>
651
652         * config/i386/i386.c (output_set_got): Add a GOT initialization
653         sequence for VxWorks PIC.
654         (legitimate_pic_address_disp_p): Allow UNSPEC_GOT wrappers
655         around labels as well as symbols.  Use gotoff_operand instead
656         of local_symbolic_operand.
657         (legitimize_pic_address): Use gotoff_operand instead of
658         local_symbolic_operand.  Use @GOT accesses for labels as
659         well as symbols.
660         (ix86_output_addr_diff_elt): Use PC-relative rather than
661         GP-relative offsets for VxWorks PIC.
662         (ix86_expand_move): Pass NULL_RTX to legitimize_pic_address unless
663         no_new_pseudos.  Check whether the returned register is op0.
664         * config/i386/i386.md (tablejump): Use PC-relative rather than
665         GP-relative offsets for VxWorks PIC.
666         * config/i386/predicates.md (gotoff_operand): New predicate.
667
668 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
669
670         * config/vxworks.h (VXWORKS_GOTT_BASE, VXWORKS_GOTT_INDEX): Undefine
671         before defining.
672         * config/vxworks-dummy.h: New file.
673         * config/i386/i386.h: Include it.
674
675 2007-03-07  Alexandre Oliva  <aoliva@redhat.com>
676
677         * dwarf2out.c (is_inlined_entry_point): New
678         (add_high_low_attributes): Emit DW_AT_entry_pc along with
679         DW_AT_ranges if the first subblock is the entry point.
680
681 2007-03-06  David Daney  <ddaney@avtrex.com>
682
683         * doc/install.texi (mips-*-*): Change recommended binutils
684         version.
685
686 2007-03-06  Anatoly Sokolov <aesok@post.ru>
687
688         * config/avr/avr.c (avr_mcu_types): Add support for ATmega325P,
689         ATmega3250P, ATmega329P, ATmega3290P, AT90USB82 and AT90USB162 
690         devices.
691         * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
692         * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).
693
694 2007-03-06  Jan Hubicka  <jh@suse.cz>
695
696         * errors.h (warning, error, fatal, internal_error): Mark as cold.
697         * predict.c (maybe_hot_bb): Cold functions are never hot; hot functions
698         are hot.
699         (probably_cold_bb_p): Cold functions are cold.
700         (probably_never_executed_bb_p): Cold functions are cold.
701         (tree_bb_level_predictions): Predict calls to cold functions as not
702         taken.
703         (compute_function_frequency): Check hot/cold attributes.
704         * function.h (function_frequency): Update comments.
705         * predict.def (PRED_COLD_FUNCTION): Predict cold function.
706         * c-common.c (handle_hot_attribute, handle_cold_attribute): New.
707         (c_common_att): Add cold and hot.
708
709         * doc/extend.texi (hot,cold attributes): Document.
710
711 2007-03-06  Andrew Haley  <aph@redhat.com>
712
713         * function.c (expand_function_end): Move blockage to just after we
714         emit the label for the naked return from the function.
715
716 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
717
718         * config/i386/att.h (ASM_OUTPUT_ASCII, ASM_OUTPUT_SKIP): Undefine
719         before redefining.
720
721 2007-03-06  Jan Hubicka  <jh@suse.cz>
722
723         * reg-stack.c (reg_to_stack): Large models don't allow NAN to be
724         loaded for constant large models.  Non-large 64bit PIC can do.
725         * i386.h (CASE_VECTOR_MODE): Large PIC cases are 64bit.
726         * cmodel.h: Add LARGE PIC.
727         * i386.md (UNSPEC_PLTOFF): New.
728         (UNSPEC_SET_RIP, UNSPEC_SET_GOT_OFFSET): New; renumber other unspecs as
729         needed.
730         (*call_1_rex64): Disable for large models.
731         (*call_1_rex64_large): New.
732         (*call_value_1_rex64): Disable for large models.
733         (*call_value_1_rex64_large): New.
734         (set_rip_rex4): New.
735         (set_got_offset_rex64): New.
736         * predicates.md (constant_call_address_operand): For large model
737         constant calls are not possible.
738         * i386-protos.h (construct_plt_address): Declare.
739         * i386.c (override_options): Accept large models.
740         (ix86_expand_prologue): Expand large PIC GOT pointer load.
741         (legitimate_constant_p): Add new UNSPECs.
742         (legitimate_pic_operand_p): Likewise.
743         (legitimate_pic_address_disp_p): Disallow local symbols for large PICs.
744         (legitimize_pic_address): Do easy RIP relative way for TLS only for
745         non-large model.
746         (output_pic_addr_const): Add PLTOFF.
747         (ix86_output_addr_diff_elt): Output 64bit tables when needed.
748         (ix86_expand_move): Legitimize pic address when in PIC mode.
749         (construct_plt_address): New function.
750         (ix86_expand_call): Offload the address to register and use GOT pointer
751         for large model.
752         * invoke.texi (mcmodel=large): Update documentation.
753
754 2007-03-06  Richard Henderson  <rth@redhat.com>
755
756         * config/i386/i386.c (x86_use_leave, x86_push_memory,
757         x86_zero_extend_with_and, x86_movx, x86_double_with_add,
758         x86_use_bit_test, x86_unroll_strlen, x86_deep_branch,
759         x86_branch_hints, x86_use_sahf, x86_partial_reg_stall,
760         x86_partial_flag_reg_stall, x86_use_himode_fiop, x86_use_simode_fiop,
761         x86_use_mov0, x86_use_cltd, x86_read_modify_write, x86_read_modify,
762         x86_split_long_moves, x86_promote_QImode, x86_fast_prefix, 
763         x86_single_stringop, x86_qimode_math, x86_promote_qi_regs,
764         x86_himode_math, x86_promote_hi_regs, x86_sub_esp_4, x86_sub_esp_8,
765         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves, 
766         x86_partial_reg_dependency, x86_memory_mismatch_stall, 
767         x86_prologue_using_move, x86_epilogue_using_move, x86_shift1,
768         x86_sse_partial_reg_dependency, x86_sse_split_regs, 
769         x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,
770         x86_sse_load0_by_pxor, x86_use_ffreep, x86_use_incdec,
771         x86_inter_unit_moves, x86_ext_80387_constants, x86_four_jump_limit,
772         x86_schedule, x86_use_bt, x86_pad_returns,
773         x86_use_xchgb): Merge into ...
774         (ix86_tune_features): ... here.  New array.
775         (x86_cmove, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
776         x86_bswap): Merge into ...
777         (ix86_arch_features): ... here.  New array.
778         (x86_3dnow_a): Remove.
779         (x86_accumulate_outgoing_args): Make static.
780         (x86_arch_always_fancy_math_387): Make static.
781         (ix86_tune_mask, ix86_arch_mask): Move ...
782         (override_options): ... to local variables here.  Apply the
783         appropriate mask to each element of ix86_arch_features and
784         ix86_tune_features.  Adjust TARGET_CMOVE and TARGET_USE_SAHF
785         as were done in the old macros.
786         (standard_80387_constant_p): Use TARGET_EXT_80387_CONSTANTS.
787         * config/i386/i386.h (x86_use_leave, x86_push_memory,
788         x86_zero_extend_with_and, x86_use_bit_test, x86_cmove, x86_deep_branch,
789         x86_branch_hints, x86_unroll_strlen, x86_double_with_add,
790         x86_partial_reg_stall, x86_movx, x86_use_himode_fiop,
791         x86_use_simode_fiop, x86_use_mov0, x86_use_cltd, x86_use_xchgb,
792         x86_read_modify_write, x86_read_modify, x86_split_long_moves,
793         x86_promote_QImode, x86_single_stringop, x86_fast_prefix,
794         x86_himode_math, x86_qimode_math, x86_promote_qi_regs,
795         x86_promote_hi_regs, x86_integer_DFmode_moves, x86_add_esp_4,
796         x86_add_esp_8, x86_sub_esp_4, x86_sub_esp_8,
797         x86_partial_reg_dependency, x86_memory_mismatch_stall,
798         x86_accumulate_outgoing_args, x86_prologue_using_move,
799         x86_epilogue_using_move, x86_decompose_lea,
800         x86_arch_always_fancy_math_387, x86_shift1,
801         x86_sse_partial_reg_dependency, x86_sse_split_regs,
802         x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,        
803         x86_sse_load0_by_pxor, x86_use_ffreep, x86_inter_unit_moves,
804         x86_schedule, x86_use_bt, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
805         x86_use_incdec, x86_pad_returns, x86_bswap,
806         x86_partial_flag_reg_stall): Remove.
807         (enum ix86_tune_indices): New.
808         (ix86_tune_features): New.
809         (TARGET_USE_LEAVE, TARGET_PUSH_MEMORY, TARGET_ZERO_EXTEND_WITH_AND,
810         TARGET_USE_BIT_TEST, TARGET_UNROLL_STRLEN,
811         TARGET_DEEP_BRANCH_PREDICTION, TARGET_BRANCH_PREDICTION_HINTS,
812         TARGET_DOUBLE_WITH_ADD, TARGET_USE_SAHF, TARGET_MOVX,
813         TARGET_PARTIAL_REG_STALL, TARGET_PARTIAL_FLAG_REG_STALL,
814         TARGET_USE_HIMODE_FIOP, TARGET_USE_SIMODE_FIOP, TARGET_USE_MOV0,
815         TARGET_USE_CLTD, TARGET_USE_XCHGB, TARGET_SPLIT_LONG_MOVES,
816         TARGET_READ_MODIFY_WRITE, TARGET_READ_MODIFY, TARGET_PROMOTE_QImode,
817         TARGET_FAST_PREFIX, TARGET_SINGLE_STRINGOP, TARGET_QIMODE_MATH,
818         TARGET_HIMODE_MATH, TARGET_PROMOTE_QI_REGS, TARGET_PROMOTE_HI_REGS,
819         TARGET_ADD_ESP_4, TARGET_ADD_ESP_8, TARGET_SUB_ESP_4,
820         TARGET_SUB_ESP_8, TARGET_INTEGER_DFMODE_MOVES,
821         TARGET_PARTIAL_REG_DEPENDENCY, TARGET_SSE_PARTIAL_REG_DEPENDENCY,
822         TARGET_SSE_UNALIGNED_MOVE_OPTIMAL, TARGET_SSE_SPLIT_REGS,
823         TARGET_SSE_TYPELESS_STORES, TARGET_SSE_LOAD0_BY_PXOR,
824         TARGET_MEMORY_MISMATCH_STALL, TARGET_PROLOGUE_USING_MOVE,
825         TARGET_EPILOGUE_USING_MOVE, TARGET_SHIFT1, TARGET_USE_FFREEP,
826         TARGET_INTER_UNIT_MOVES, TARGET_FOUR_JUMP_LIMIT, TARGET_SCHEDULE,
827         TARGET_USE_BT, TARGET_USE_INCDEC, TARGET_PAD_RETURNS,
828         TARGET_EXT_80387_CONSTANTS): Use it.
829         (enum ix86_arch_indices): New.
830         (ix86_arch_features): New.
831         (TARGET_CMOVE, TARGET_CMPXCHG, TARGET_CMPXCHG8B, TARGET_XADD,
832         TARGET_BSWAP): Use it.
833         (ix86_tune_mask, ix86_arch_mask): Remove.
834
835 2007-03-06  Joseph Myers  <joseph@codesourcery.com>
836
837         PR bootstrap/31020
838         * configure.ac (CROSS_SYSTEM_HEADER_DIR, build_system_header_dir):
839         Define using $${sysroot_headers_suffix}.
840         * configure: Regenerate.
841         * cppdefault.c (cpp_include_defaults): Make FIXED_INCLUDE_DIR a
842         multilib-suffixed directory if SYSROOT_HEADERS_SUFFIX_SPEC
843         defined.
844         * doc/invoke.texi (-print-sysroot-headers-suffix): Document.
845         * gcc.c (print_sysroot_headers_suffix): New.
846         (option_map): Include --print-sysroot-headers-suffix.
847         (display_help): Mention -print-sysroot-headers-suffix.
848         (process_command): Handle -print-sysroot-headers-suffix.
849         (do_spec_1): Append multilib directory to include-fixed path if
850         sysroot suffixes in use.
851         (main): Handle -print-sysroot-headers-suffix.
852         * Makefile.in (start.encap): Don't depend on xlimits.h
853         (xlimits.h): Remove.
854         (stmp-int-hdrs): Don't depend on xlimits.h.  Inline generation of
855         limits.h for each multilib in fixinc_list.
856         (fixinc_list, s-fixinc_list): New.
857         (stmp-fixinc): Depend on fixinc_list.  If not copying headers,
858         generate them for each multilib in fixinc_list.
859         (stmp-fixproto): Use include-fixed.  Run fixproto for each
860         multilib in fixinc_list.
861         (mostlyclean): Don't remove xlimits.h.
862         (clean): Remove include-fixed.
863         (real-install-headers-tar, real-install-headers-cpio,
864         real-install-headers-cp): Don't copy include, only include-fixed.
865         (install-mkheaders): Depend on fixinc_list.  Don't depend on
866         xlimits.h.  Save limits.h files for each multilib in fixinc_list.
867         Always save mkinstalldirs.  Preserve ${sysroot_headers_suffix} in
868         SYSTEM_HEADER_DIR setting in mkheaders.conf.
869
870 2007-03-06  Jan Hubicka  <jh@suse.cz>
871
872         * regstack.c (reg_to_stack): When in 64bit PIC mode, we still can load
873         NANs easilly.
874
875 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
876
877         * configure.ac: Allow tm_file to contain build-directory files.
878         * configure: Regenerate.
879         * config.gcc (m68k-*-uclinux*): Add ./sysroot-suffix.h to tm_file.
880         * config/m68k/t-uclinux (sysroot-suffix.h): New target.
881         * config/m68k/print-sysroot-suffix.sh: New file.
882
883 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
884
885         * config/m68k/m68k.h (PIC_OFFSET_TABLE_REGNUM): Use the REGNO
886         of pic_offset_table_rtx if reload_completed.
887         (CONDITIONAL_REGISTER_USAGE): Use PIC_REG instead of
888         PIC_OFFSET_TABLE_REGNUM.
889         * config/m68k/m68k.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Always
890         return true.
891         (m68k_save_reg): Use PIC_REG instead of PIC_OFFSET_TABLE_REGNO.
892         (m68k_output_mi_thunk): Rewrite to use RTL.  Honor vcall_offset.
893
894 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
895
896         * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
897         functions that call eh_return.
898
899 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
900
901         * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
902         functions that need a constant pool.
903
904 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
905
906         PR target/28181
907         * config/m68k/m68k-protos.h (m68k_secondary_reload_class): Declare.
908         (m68k_preferred_reload_class): Likewise.
909         * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Remove duplicated comment.
910         (SECONDARY_RELOAD_CLASS): Define.
911         (PREFERRED_RELOAD_CLASS): Use m68k_preferred_reload_class.
912         (LIMIT_RELOAD_CLASS): Delete.
913         * config/m68k/m68k.c (m68k_regno_mode_ok): Don't prevent address
914         registers from storing bytes.
915         (m68k_secondary_reload_class): New function.
916         (m68k_preferred_reload_class): Likewise.
917
918 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
919
920         * config/m68k/m68k.c (m68k_save_reg): Remove special case for
921         leaf functions.
922         (m68k_expand_prologue): Likewise.
923
924 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
925
926         * config/m68k/m68k-protos.h (output_sibcall): Declare.
927         (mips_expand_epilogue): Add a bool parameter.
928         (m68k_legitimize_sibcall_address): Declare.
929         * config/m68k/m68k.c (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
930         (m68k_expand_epilogue): Add a parameter to select between sibling
931         and normal epilogues.  Only generate a return for the latter.
932         (m68k_ok_for_sibcall_p): New function.
933         (m68k_legitimize_sibcall_address, output_sibcall): New functions.
934         * config/m68k/m68k.md (sibcall, *sibcall): New patterns.
935         (sibcall_value, *sibcall_value): Likewise.
936         (*call, *call_value): Require !SIBLING_CALL_P.
937         (epilogue): Update call to m68k_expand_epilogue.
938         (sibcall_epilogue): New pattern.
939         * config/m68k/predicates.md (const_call_operand): Say that this
940         predicate applies to sibling calls too.
941         (sibcall_operand): New predicate.
942
943 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
944
945         * config/m68k/m68k.md (movsf_cf_soft): Provide the same non-mov3q
946         alternatives as movsi_cf.
947         (movsf_cf_hard): Add commentary.
948
949 2007-03-06  Kazu Hirata  <kazu@codesourcery.com>
950             Richard Sandiford  <richard@codesourcery.com>
951
952         * config/m68k/m68k-protos.h (m68k_interrupt_function_p): Declare.
953         (m68k_movem_pattern_p, m68k_output_movem): Likewise.
954         (m68k_expand_prologue, m68k_expand_epilogue): Likewise.
955         * config/m68k/m68k.h (EPILOGUE_USES): Define.  Treat all registers
956         as being live on exit from an interrupt function.
957         (PRINT_OPERAND_PUNCT_VALID_P): Return true for '?'.
958         * config/m68k/m68k.c (MIN_MOVEM_REGS, MIN_FMOVEM_REGS): New macros.
959         (m68k_frame): Remove reg_rev_mask and fpu_rev_mask.
960         (TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Delete.
961         (m68k_interrupt_function_p): Globalize.
962         (m68k_compute_frame_layout): Remove reverse mask code.
963         (m68k_emit_movem, m68k_set_frame_related): New functions.
964         (m68k_output_function_prologue): Delete in favor of...
965         (m68k_expand_prologue): ...this new function.
966         (m68k_output_function_epilogue): Delete in favor of...
967         (m68k_expand_epilogue): ...this new function.
968         (m68k_split_offset, m68k_movem_pattern_p, m68k_output_movem): New
969         functions.
970         (print_operand): Handle %?.
971         * config/m68k/m68k.md (UNSPEC_SIN, UNSPEC_COS): Remove excess space.
972         (UNSPEC_GOT, A1_REG, PIC_REG, FP0_REG): New constants.
973         (prologue, epilogue): New patterns.
974         (return): Turn into a define_expand.
975         (*return): New pattern, derived from old "return" pattern.  Use rte
976         rather than rts for interrupt functions.  Only use rtd if the pop
977         count is nonzero.
978         (*m68k_store_multiple, *m68k_store_multiple_automod): New patterns.
979         (*m68k_load_multiple, *m68k_load_multiple_automod): Likewise.
980         (link, *link, unlink, *unlink, load_got): Likewise.
981
982 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
983
984         PR target/23482
985         PR target/17114
986         * config/m68k/m68k-protos.h (m68k_legitimate_base_reg_p): Declare.
987         (m68k_legitimate_index_reg_p, m68k_legitimate_address_p): Likewise.
988         (m68k_matches_q_p, m68k_matches_u_p): Likewise.
989         * config/m68k/m68k.h (EXTRA_CONSTRAINT): Use m68k_matches_q_p
990         and m68k_matches_u_p.
991         (PCREL_GENERAL_OPERAND_OK, LEGITIMATE_BASE_REG_P): Delete.
992         (INDIRECTABLE_1_ADDRESS_P, GO_IF_NONINDEXED_ADDRESS): Delete.
993         (GO_IF_INDEXABLE_BASE, GO_IF_INDEXING, GO_IF_INDEXED_ADDRESS): Delete.
994         (LEGITIMATE_INDEX_REG_P, LEGITIMATE_INDEX_P): Delete.
995         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Delete.
996         (REG_STRICT_P): New macro.
997         (LEGITIMATE_PIC_OPERAND_P): Use REG_STRICT_P rather than
998         PCREL_GENERAL_OPERAND_OK.
999         (REG_OK_FOR_BASE_P): Merge definitions.  Use REG_STRICT_P and
1000         m68k_legitimate_base_reg_p.
1001         (REG_MODE_OK_FOR_INDEX_P): Likewise m68k_legitimate_index_reg_p.
1002         (GO_IF_LEGITIMATE_ADDRESS): Likewise m68k_legitimate_address_p.
1003         (PIC_CASE_VECTOR_ADDRESS): Update comment.
1004         * config/m68k/m68k.c (m68k_address): New structure.
1005         (m68k_legitimate_base_reg_p, m68k_legitimate_index_reg_p)
1006         (m68k_decompose_index, m68k_legitimate_constant_address_p)
1007         (m68k_jump_table_ref_p, m68k_decompose_address)
1008         (m68k_legitimate_address_p, m68k_legitimate_mem_p, m68k_matches_q_p)
1009         (m68k_matches_u_p): New functions.
1010         (print_operand_address): Rewrite to use m68k_decompose_index.
1011
1012 2007-03-05  David Taylor  <dtaylor@emc.com>
1013
1014         * gcc.c: Correct copyright date in --version output.
1015
1016 2007-03-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1017
1018         * pa.md: In unamed move patterns, disparge copies between general
1019         and floating point registers using '?' modifier.  Don't include 'f'
1020         constraint for register preferences in DImode, SImode, HImode and
1021         QImode patterns.  Likewise for 'r' in DFmode and SFmode patterns.
1022         Remove constraints for copies between general and floating registers
1023         in soft-float DFmode pattern.
1024         (movdf): Fail if operand1 is a CONST_DOUBLE and operand0 is a hard
1025         floating register.
1026         (movsf): Likewise. 
1027
1028 2007-03-05  Mike Stump  <mrs@apple.com>
1029
1030         * c-common.c (targetcm): Add.
1031         * c-opts.c (c_common_handle_option): Handle language specific
1032         target options.
1033         * opts.c (handle_option): Verify language for target options, if
1034         any are given.
1035         * opth-gen.awk: Add CL_LANG_ALL.
1036         * target-def.h (TARGET_HANDLE_C_OPTION): Add.
1037         (TARGETCM_INITIALIZER): Add.
1038         * target.h (struct gcc_targetcm): Add.
1039         (targetcm): Add.
1040         * targhooks.c (default_handle_c_option): Add.
1041         * targhooks.h (default_handle_c_option): Add.
1042         * doc/tm.texi (TARGET_HANDLE_C_OPTION): Add.
1043
1044         * config/darwin.opt (iframework): Add.
1045         * config/darwin.h (TARGET_HAS_TARGETCM): Add.
1046         * config/darwin-c.c (handle_c_option): Add.
1047         (TARGET_HANDLE_C_OPTION): Add.
1048         (targetcm): Add.
1049         * doc/invoke.texi (Darwin Options): Add -iframework.
1050
1051 2007-03-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1052
1053         * convert.c (convert_to_integer): Fix nearbyint/rint -> *lrint
1054         conversion.
1055
1056 2007-03-05  Ian Lance Taylor  <iant@google.com>
1057
1058         * c.opt (fgnu89-inline): New option.
1059         * c-opts.c (c_common_post_options): Set default value for
1060         flag_gnu89_inline.
1061         * c-decl.c (WANT_C99_INLINE_SEMANTICS): Remove.
1062         (pop_scope): Check flag_gnu89_inline rather than flag_isoc99 for
1063         inline functions.
1064         (diagnose_mismatched_decls, merge_decls, start_decl): Likewise.
1065         (grokdeclarator, start_function): Likewise.
1066         * c-cppbuiltin.c (c_cpp_builtins): Define either
1067         __GNUC_GNU_INLINE__ or __GNUC_STDC_INLINE__.
1068         * doc/invoke.texi (Option Summary): Mention -fgnu89-inline.
1069         (C Dialect Options): Document -fgnu89-inline.
1070         * doc/extend.texi (Function Attributes): Explain what the
1071         gnu_inline attribute does.
1072         * doc/cpp.texi (Common Predefined Macros): Document
1073         __GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.
1074
1075 2007-03-05  Ian Lance Taylor  <iant@google.com>
1076
1077         PR tree-optimization/31034
1078         * tree-vrp.c (extract_range_from_assert): Don't try to handle a
1079         half-range if the other side is an overflow infinity.
1080
1081 2007-03-05  Bernd Schmidt  <bernd.schmidt@analog.com>
1082
1083         * config.gcc (bfin*-uclinux*): Use t-bfin-uclinux.
1084         (bfin*-linux-uclibc*): New configuration.
1085         * config/linux.h (LINK_GCC_C_SEQUENCE_SPEC): Undefined before
1086         defining.
1087         * config/bfin/linux.h: New file.
1088         * config/bfin/libgcc-bfin.ver: New file.
1089         * config/bfin/t-bfin-uclinux: New file.
1090         * config/bfin/t-bfin-linux: New file.
1091         * config/bfin/uclinux.h (LINUX_TARGET_OS_CPP_BUILTINS): New macro.
1092         (TARGET_OS_CPP_BUILTINS): New macro.
1093
1094 2007-03-05  Richard Guenther  <rguenther@suse.de>
1095
1096         * fold-const.c (fold_binary): Remove duplicate folding
1097         of comparison of non-null ADDR_EXPR against null.
1098
1099 2007-03-05  Richard Guenther  <rguenther@suse.de>
1100             Dorit Nuzman  <dorit@il.ibm.com>
1101
1102         PR tree-optimization/26420
1103         * tree-vectorizer.c (vectorize_loops): Bail out early if there
1104         are no loops in the function.  Only print the number of
1105         vectorized loops if it is greater than zero or we are supposed
1106         to print information about unvectorized loops.
1107
1108 2007-03-05  Revital Eres  <eres@il.ibm.com>
1109
1110         * gcc.dg/var-expand1.c: New test.
1111         * loop-unroll.c (analyze_insn_to_expand_var): Add dump info
1112         when an accumulator is expanded.
1113
1114 2007-03-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1115
1116         PR other/30465
1117         * c-common.c (convert_and_check): Don't give warnings for
1118         conversion if 'expr' already overflowed.
1119         
1120 2007-03-04  Roger Sayle  <roger@eyesopen.com>
1121
1122         PR middle-end/30744
1123         * fold-const.c (fold_comparison): Enforce type consistency when
1124         transforming ~X op ~Y to Y op X, and ~X op C to X op' ~C.
1125
1126 2007-03-04  Zdenek Dvorak  <dvorakz@suse.cz>
1127
1128         * tree-ssa-address.c (create_mem_ref): Do not put an expression
1129         containing a cast to the base of TARGET_MEM_REF.
1130
1131 2007-03-04  Martin Michlmayr  <tbm@cyrius.com>
1132
1133         * tree.c (tree_contains_struct_check_failed): Remove spurious
1134         whitespace from error message.
1135
1136 2007-03-04 Andrew Pinski <andrew_pinski@playstation.sony.com>
1137
1138         PR target/30406
1139         * config/rs6000/rs6000.c (rs6000_function_value): Look at bit size
1140         instead of precision.
1141
1142 2007-03-04  Roman Zippel <zippel@linux-m68k.org>
1143             Nathan Sidwell  <nathan@codesourcery.com>
1144
1145         * emit-rtl.c (find_auto_inc): New.
1146         (try_split): recreate REG_INC notes,
1147         Use regular for loops rather than whiles.
1148
1149 2007-03-03  Andreas Schwab  <schwab@suse.de>
1150
1151         * configure.ac (HAVE_AS_REL16): Move test back to correct place.
1152         * configure: Regenerate.
1153
1154 2007-03-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1155
1156         * builtins.def (ATTR_MATHFN_FPROUNDING): Rely on
1157         flag_rounding_math, not flag_unsafe_math_optimizations.
1158
1159         * c-pretty-print.c (pp_c_direct_abstract_declarator): Use
1160         fold_build2.
1161         * config/alpha/alpha.c (alpha_fold_builtin_zapnot,
1162         alpha_fold_vector_minmax): Likewise.
1163         * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
1164         * config/sparc/sparc.c (sparc_gimplify_va_arg): Likewise.
1165
1166 2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>
1167
1168         * tree-sra.c (sra_walk_fns) <ldst>: Document new restriction.
1169         (sra_walk_modify_expr) <rhs_elt>: Treat the reference as a use
1170         if the lhs has side-effects.
1171         <lhs_elt>: Treat the reference as a use if the rhs has side-effects.
1172
1173 2007-03-02  Uros Bizjak  <ubizjak@gmail.com>
1174
1175         * config/i386/i386.h (TUNEMASK): Remove define.
1176         (ARCHMASK): Remove define.
1177         (TARGET_*): Use ix86_tune_mask variable instead of TUNEMASK.
1178          Use ix86_arch_mask variable instead of ARCHMASK.
1179         * config/i386/i386.c (override_options): Ditto.
1180         (standard_80387_constant_p): Ditto.
1181
1182 2007-03-02  Ian Lance Taylor  <iant@google.com>
1183
1184         Used signed infinities in VRP.
1185         * tree-vrp.c (uses_overflow_infinity): New static function.
1186         (supports_overflow_infinity): New static function.
1187         (make_overflow_infinity): New static function.
1188         (negative_overflow_infinity): New static function.
1189         (positive_overflow_infinity): New static function.
1190         (is_negative_overflow_infinity): New static function.
1191         (is_positive_overflow_infinity): New static function.
1192         (is_overflow_infinity): New static function.
1193         (overflow_infinity_range_p): New static function.
1194         (compare_values_warnv): New function split out of compare_values.
1195         (compare_value): Call it.
1196         (set_value_range_to_nonnegative): Add overflow_infinity
1197         parameter.  Change caller.
1198         (vrp_expr_computes_nonnegative): Add strict_overflow_p parameter.
1199         Change callers.
1200         (vrp_expr_computes_nonzero): Likewise.
1201         (compare_ranges, compare_range_with_value): Likewise.
1202         (compare_name_with_value, compare_names): Likewise.
1203         (vrp_evaluate_conditional): Likewise.
1204         (set_value_range): Handle infinity
1205         (vrp_operand_equal_p, operand_less_p): Likewise.
1206         (extract_range_from_assert): Likewise.
1207         (vrp_int_const_binop): Likewise.
1208         (extract_range_from_binary_expr): Likewise.
1209         (extract_range_from_unary_expr): Likewise.
1210         (extract_range_from_comparison): Likewise.
1211         (extract_range_from_expr): Likewise.
1212         (dump_value_range): Likewise.
1213         (vrp_visit_cond_stmt, vrp_visit_phi_node): Likewise.
1214         (test_for_singularity): Likewise.
1215         (vrp_int_const_binop): Remove inline qualifier.
1216         (adjust_range_with_scev): Add comment.
1217         * tree-flow.h (vrp_evaluate_conditional): Update declaration.
1218
1219 2007-03-02  Diego Novillo  <dnovillo@redhat.com>
1220
1221         * tree-ssa-structalias.c (could_have_pointers): Tidy.
1222         (get_constraint_for): Likewise.
1223         (do_structure_copy): Likewise.
1224         (find_func_aliases): Fix references to MODIFY_EXPR.
1225         (intra_create_variable_infos): Tidy.
1226         * tree-ssa-operands.c (add_virtual_operand): Add argument
1227         IS_CALL_SITE.
1228         When adding members of alias sets, if IS_CALL_SITE is true and
1229         the symbol is not call-clobbered, skip it.
1230         Adjust all callers.
1231
1232 2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>
1233
1234         * config/alpha/alpha.c (alpha_gp_save_rtx): Insert the insns at the
1235         entry by means of emit_insn_at_entry.
1236
1237 2007-03-02  Richard Henderson  <rth@redhat.com>
1238
1239         * expr.h (promoted_input_arg): Remove decl.
1240         * function.c (promoted_input_arg): Merge into ...
1241         * combine.c (setup_incoming_promotions): ... only caller.
1242         Rearrange to avoid double loop.
1243
1244 2007-03-02  Ben Elliston  <bje@au.ibm.com>
1245             Peter Bergner  <bergner@vnet.ibm.com>
1246             Janis Johnson  <janis187@us.ibm.com>
1247
1248         * config/rs6000/dfp.md: New file.
1249         * config/rs6000/rs6000.md: Include dfp.md.
1250         (add<mode>3_internal1): Disable for DECIMAL_FLOAT_MODE_P operands.
1251         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Handle DDmode
1252         and TDmode decimal float modes in FP registers.
1253         (num_insns_constant): Likewise.
1254         (rs6000_legitimate_offset_address_p): Likewise.
1255         (rs6000_legitimize_address): Likewise.
1256         (rs6000_legitimize_reload_address): Likewise.
1257         (rs6000_legitimate_address): Likewise.
1258         (rs6000_emit_move): Likewise.
1259         (function_arg_boundary): Likewise.
1260         (function_arg_advance): Likewise.
1261         (rs6000_darwin64_record_arg_recurse): Likewise.
1262         (function_arg): Likewise.
1263         (rs6000_gimplify_va_arg): Likewise.
1264         (rs6000_split_multireg_move): Likewise.
1265         (rs6000_output_function_epilogue): Likewise.
1266         (rs6000_output_function_epilogue): Likewise.
1267         (rs6000_register_move_cost): Likewise.
1268         (rs6000_function_value): Likewise.
1269         (rs6000_libcall_value): Likewise.
1270
1271 2007-03-02  Richard Sandiford  <richard@codesourcery.com>
1272
1273         * config/t-vxworks (LIMITS_H_TEST): Define to true for VxWorks.
1274
1275 2007-03-02  Richard Sandiford  <richard@codesourcery.com>
1276
1277         * config/t-vxworks (LIBGCC2_INCLUDES): Pass -nostdinc.
1278         Use $MULTIDIR to choose between the kernel and RTP headers,
1279         and use $WIND_BASE and $WIND_USR to locate them.
1280
1281 2007-03-02  Uros Bizjak  <ubizjak@gmail.com>
1282
1283         * config/i386/i386.c (override_options): Put initialization of
1284         ix86_tune_mask and ix86_arch_mask to the correct place.
1285
1286 2007-03-02  Uros Bizjak  <ubizjak@gmail.com>
1287             Michael Meissner  <michael.meissner@amd.com>
1288
1289         PR target/31019
1290         * config/i386/i386.h (TUNEMASK): Redefine to use ix86_tune_mask.
1291         (ARCHMASK): Define.
1292         (TARGET_CMOVE): Use ARCHMASK.
1293         (TARGET_CMPXCHG): Ditto.
1294         (TARGET_CMPXCHG8B): Ditto.
1295         (TARGET_XADD): Ditto.
1296         (TARGET_BSWAP): Ditto.
1297         * config/i386/i386.c (ix86_tune_mask): New global variable.
1298         (ix86_arch_mask): Ditto.
1299         (override_options): Initialize ix86_tune_mask and
1300         ix86_arch_mask. Use ARCHMASK to clear MASK_NO_FANCY_MATH_387 in
1301         target_flags.
1302
1303 2007-03-02  Ben Elliston  <bje@au.ibm.com>
1304
1305         PR 30992
1306         * config/dfp-bit.c (DFP_TO_INT): Initialise qval with "1.".
1307
1308 2007-03-02  Joseph Myers  <joseph@codesourcery.com>
1309
1310         * target.h (init_dwarf_reg_sizes_extra): New target hook.
1311         * target-def.h (TARGET_INIT_DWARF_REG_SIZES_EXTRA): New default.
1312         * doc/tm.texi (TARGET_INIT_DWARF_REG_SIZES_EXTRA): Document.
1313         * dwarf2out.c (expand_builtin_init_dwarf_reg_sizes): Call this
1314         hook.
1315         * config/rs6000/rs6000.c (TARGET_INIT_DWARF_REG_SIZES_EXTRA,
1316         rs6000_init_dwarf_reg_sizes_extra): New.
1317         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Support
1318         SPE register high parts.
1319
1320 2007-03-01  Brooks Moses  <brooks.moses@codesourcery.com>
1321
1322         * Makefile.in: Add install-pdf target as
1323         copied from automake v1.10 rules.
1324         * configure.ac: Add install-pdf to target list.
1325         * configure: Regenerate.
1326
1327 2007-03-01  Paul Brook  <paul@codesourcery.com>
1328
1329         * config/arm/arm.c (arm_legitimate_index_p): Limit iWMMXt addressing
1330         modes to LDRD for DImode.
1331         (output_move_double): Fixup out of range ldrd/strd.
1332         (vfp_secondary_reload_class): Rename...
1333         (coproc_secondary_reload_class): ... to this.  Add wb argument.
1334         * config/arm/arm.h (SECONDARY_OUTPUT_RELOAD_CLASS): Use
1335         coproc_secondary_reload_class for CLASS_IWMMXT.
1336         (SECONDARY_INPUT_RELOAD_CLASS): Ditto.
1337         * arm-protos.h (coproc_secondary_reload_class): Update prototype.
1338
1339 2007-03-01  Zdenek Dvorak  <dvorakz@suse.cz>
1340
1341         * tree-ssa-loop-prefetch.c (determine_unroll_factor):  Bound the unroll
1342         factor by the estimated number of iterations.
1343         (loop_prefetch_arrays): Do not prefetch in loops that iterate less than
1344         prefetch latency.
1345
1346         * config/i386/driver-i386.c (describe_cache, detect_caches_amd,
1347         decode_caches_intel, detect_caches_intel): New functions.
1348         (host_detect_local_cpu): Use detect_caches_amd and
1349         detect_caches_intel.
1350
1351 2007-03-01  Richard Henderson  <rth@redhat.com>
1352
1353         * expr.c (emit_move_complex_push): Export.
1354         (emit_move_complex_parts): Split out from ...
1355         (emit_move_complex): ... here.
1356         * expr.h (emit_move_complex_push, emit_move_complex_parts): Declare.
1357         * config/i386/i386.md (movcdi): New.
1358
1359 2007-03-01  Uros Bizjak  <ubizjak@gmail.com>
1360
1361         * config/i386/i386.c (ix86_modes_tieable_p): Fix typo, use also
1362         size of mode1 to check for tieable modes in MMX case.
1363
1364 2007-03-01  Richard Sandiford  <richard@codesourcery.com>
1365
1366         * Makefile.in (rtlanal.o): Depend on tree.h.
1367         * rtl.h (offset_within_section_p, split_const): Declare.
1368         * rtlanal.c: Include tree.h.
1369         (offset_within_block_p): New function, taken from
1370         mips_offset_within_object_p.
1371         (split_const): New function, taken from mips_split_const.
1372         * config/m68k/m68k-protos.h (m68k_illegitimate_symbolic_constant_p):
1373         Declare.
1374         * config/m68k/m68k.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P): Define.
1375         (CONSTANT_ADDRESS_P): Only accept legitimate constants.
1376         (LEGITIMATE_CONSTANT_P): Check m68k_illegitimate_symbolic_constant_p.
1377         * config/m68k/m68k.c (TARGET_CANNOT_FORCE_CONST_MEM): Define.
1378         (m68k_illegitimate_symbolic_constant_p): New function.
1379         * config/m68k/m68k.md (movsi): Remove misleading predicates.
1380         If M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P and the source is a
1381         symbolic constant that might be outside the symbol's section,
1382         move the symbol first and then add the offset.
1383         * config/m68k/uclinux.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P):
1384         Override.
1385         * config/mips/mips.c (mips_split_const): Delete.
1386         (mips_offset_within_object_p): Delete.
1387         (mips_symbolic_constant_p): Use offset_within_section_p and
1388         split_const instead of mips_offset_within_object_p and
1389         mips_split_const.
1390         (mips_cannot_force_const_mem, mips_const_insns, mips_unspec_address)
1391         (mips_legitimize_const_move, print_operand_reloc)
1392         (mips_dangerous_for_la25_p): Use split_const instead of
1393         mips_split_const.
1394
1395 2007-02-28  Eric Christopher  <echristo@apple.com>
1396
1397         * Makefile.in (install-include-dir): Don't rm -rf include.
1398
1399 2007-02-28  Richard Guenther  <rguenther@suse.de>
1400
1401         PR middle-end/30364
1402         * fold-const.c (fold_binary): Do not associate expressions
1403         with more than one variable for integer types that do not wrap.
1404
1405 2007-02-28  Sandra Loosemore  <sandra@codesourcery.com>
1406
1407         * builtins.c (fold_builtin_call_list, fold_builtin_call_valist):
1408         Delete, and replace with...
1409         (fold_builtin_call_array): This.  Update callers to use it.
1410         * fold-const.c (fold_build_call_list): Delete, and replace with...
1411         (fold_build_call_array): This.
1412         (fold_build_call_list_initializer): Delete, and replace with...
1413         (fold_build_call_array_initializer): This.
1414         * tree.h: Update declarations to reflect above changes.
1415
1416         * c-typeck.c (build_function_call): Store converted arguments
1417         in a stack-allocated array instead of building a list.
1418         (convert_arguments): Store arguments in the array passed in as an
1419         argument, and return the actual number of arguments.
1420         * c-format.c: (check_function_format): Pass arguments in an
1421         array instead of a list.
1422         * c-common.c (check_function_nonnull): Likewise.
1423         (check_function_sentinel): Likewise.
1424         (check_function_arguments): Likewise.
1425         * c-common.h: Update declarations to reflect above changes.
1426
1427 2007-02-28  Jan Hubicka  <jh@suse.cz>
1428
1429         * predict.def (PRED_TREE_EARLY_RETURN, PRED_CONST_RETURN,
1430         PRED_NEGATIVE_RETURN): Update outcomes.
1431
1432 2007-02-28  Bernd Schmidt  <bernd.schmidt@analog.com>
1433
1434         * calls.c (emit_library_call_value_1): Handle partial registers
1435         correctly when building up CALL_INSN_FUNCTION_USAGE.
1436
1437 2007-02-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1438
1439         * pa/predicates.md (move_src_operand): Allow zero for mode.
1440         * pa/pa.md: Fix constraints for zero CONST_DOUBLE in 64-bit DFmode
1441         move pattern.
1442
1443 2007-02-27  Uros Bizjak  <ubizjak@gmail.com>
1444
1445         PR target/30970
1446         * config/i386/sse.md (*mov<mode>_internal, *movv4sf_internal,
1447         *movv2df_internal): Enable pattern only for valid operand
1448         combinations.
1449         * config/i386/i386.c (ix86_modes_tieable_p): For SSE registers,
1450         tie only 128bit modes. For MMX registers, tie only 64bit modes.
1451
1452 2007-02-27  Mike Stump  <mrs@apple.com>
1453
1454         * config/darwin-crt3.c: Avoid compilation when compiling for a
1455         kext multilib.
1456
1457 2007-02-27  Joseph Myers  <joseph@codesourcery.com>
1458
1459         * Makefile.in (PREPROCESSOR_DEFINES, test-protoize-simple): Define
1460         FIXED_INCLUDE_DIR.
1461         (stmp-int-hdrs, stmp-fixinc, install-headers): Use include-fixed
1462         for fixed headers and limits.h.
1463         (install-include-dir, install-headers-tar, install-headers-cpio,
1464         install-headers-cp, real-install-headers-tar,
1465         real-install-headers-cpio, real-install-headers-cp): Handle
1466         include-fixed as well as include.
1467         (install-mkheaders): Don't install files that go only in include
1468         not include-fixed.
1469         * cppdefault.c (cpp_include_defaults): Separate FIXED_INCLUDE_DIR
1470         from GCC_INCLUDE_DIR.
1471         * gcc.c (process_command): Remove special -BstageN/ handling.
1472         (do_spec_1): Add include-fixed directories.
1473
1474 2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>
1475
1476         * config/bfin/t-bfin-elf (LIB1ASMFUNCS): Add _umulsi3_highpart and
1477         _smulsi3_highpart.
1478         * config/bfin/lib1funcs.asm (___umulsi3_highpart, ___smulsi3_highpart):
1479         New functions.
1480         * config/bfin/bfin.md (smulsi3_highpart, umulsi3_highpart): New
1481         patterns.
1482
1483 2007-02-27  Mark Mitchell  <mark@codesourcery.com>
1484
1485         * c-common.c (get_priority): Add check for
1486         SUPPORTS_INIT_PRIORITY.
1487
1488 2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>
1489
1490         * config/bfin/bfin.md (doloop_end): FAIL if counter reg isn't SImode.
1491
1492         * config/bfin/bfin.c: Include "cfglayout.h".
1493         (MAX_LSETUP_DISTANCE): New macro.
1494         (struct loop_info): New members incoming, incoming_src and
1495         incoming_dest.  Delete member predecessor.
1496         (length_for_loop): New function.
1497         (bfin_optimize_loop): Handle more different loop structures.
1498         (bfin_discover_loop): Rework detection of predecessor blocks by
1499         examining incoming edges.
1500         (bfin_discover_loops, bfin_free_loops): New functions, broken out of
1501         bfin_reorg_loops.
1502         (bfin_reorder_loops): New function.
1503         (bfin_reorg_loops): Use these three new functions.
1504
1505         * config/bfin/bfin.h (enum reg_class, REG_CLASS_NAMES,
1506         REG_CLASS_CONTENTS): Add D0REGS through D7REGS.
1507         (CONSTRAINT_LEN): Add entry for 'q'.
1508         (REG_CLASS_FROM_CONSTRAINT): Renamed from REG_CLASS_FROM_LETTER.
1509         Add 'q' constraints.
1510         (REGNO_REG_CLASS): For R0 through R7, return corresponding regclass.
1511         (CLASS_LIKELY_SPILLED_P): True for R0, R1 and R2.
1512
1513         * config/bfin/bfin.md (add_with_carry): New pattern.
1514         (s_or_u, su_optab, su_modifier): New code macros/attrs.
1515         (<su_optab>hisi_ll, <su_optab>hisi_lh, <su_optab>hisi_hl,
1516         <su_optab>hisi_hh): Renamed from mulhisi_xx patterns; macroized to
1517         support unsigned multiplies too.  Removed incorrect commutativity from
1518         operand 1 constraint where appropriate.
1519         (usmulhisi_ull, usmulhisi_ulh, usmulhisi_uhl, usmulhisi_uhh): New
1520         patterns.
1521         (<su_optab>hisi_ll_lh, <su_optab>hisi_ll_hl, <su_optab>hisi_ll_hh,
1522         <su_optab>hisi_lh_hl, <su_optab>hisi_lh_hh, <su_optab>hisi_hl_hh):
1523         New patterns.
1524         (usmulhisi_ll_lul, usmulhisi_ll_luh, usmulhisi_ll_hul,
1525         usmulhisi_ll_huh, usmulhisi_lh_lul, usmulhisi_lh_luh, usmulhisi_lh_hul,
1526         usmulhisi_lh_huh, usmulhisi_hl_lul, usmulhisi_hl_luh, usmulhisi_hl_hul,
1527         usmulhisi_hl_huh, usmulhisi_hh_lul, usmulhisi_hh_luh, usmulhisi_hh_hul,
1528         usmulhisi_hh_huh): New patterns.
1529
1530         * config/bfin/bfin.md (ssashiftv2hi3, ssashifthi3, lshiftv2hi3,
1531         lshifthi3): Fix output template to use half reg for operand 2.
1532
1533         * config/bfin/bfin.c (bfin_output_mi_thunk): Use R3 as scratch reg
1534         instead of R2.
1535
1536         * config/bfin/bfin.md (rotl16, rotlsi3, rotrsi3): New patterns.
1537
1538 2007-02-27  Andreas Schwab  <schwab@suse.de>
1539
1540         * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-common.texi.
1541
1542 2007-02-27  Jan Hubicka  <jh@suse.cz>
1543
1544         * predict.c (last_basic_block_p): Remove.
1545         (tree_estimate_probability): Update return heuristic for commonized
1546         return blocks.
1547
1548 2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>
1549
1550         * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-vers.texi dependency.
1551
1552 2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>
1553
1554         * doc/include/gcc-common.texi (versionsubtitle): New macro.
1555         * doc/cpp.texi: Standardize title page.
1556         * doc/cppinternals.texi: Likewise.
1557         * doc/gcc.texi: Standardize title page, remove version number
1558         from copyright page.
1559         * doc/gccint.texi: Likewise.
1560         * doc/install.texi: Standardize title page, add table of
1561         contents.
1562
1563 2007-02-26  Jan Hubicka  <jh@suse.cz>
1564
1565         * predict.def: Set outcomes according to more recent results.
1566         (PRED_LOOP_CONDITION, PRED_LOOP_PRECONDITIONING, PRED_LOOP_HEADER):
1567         Remove dead predictors.
1568         * predict.c (return_prediction): Fix pasto.
1569
1570 2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>
1571
1572         * loop-iv.c (simplify_using_initial_values): Fix oversight in previous
1573         change; avoid a memory leak when returning early.
1574
1575 2007-02-26  Mark Mitchell  <mark@codesourcery.com>
1576
1577         * c-decl.c (static_ctors): Move to c-common.c.
1578         (static_dtors): Likewise.
1579         (finish_function): Use c_record_cdtor_fn.
1580         (build_cdtor): Move to c-common.c.
1581         (c_write_global_declarations): Use c_build_cdtor_fns.
1582         * c-common.h (static_ctors): Declare.
1583         (static_dtors): Likewise.
1584         (c_record_cdtor_fn): Likewise.
1585         (c_build_cdtor_fns): Likewise.
1586         * c-common.c (static_ctors): New variable.
1587         (static_dtors): Likewise.
1588         (c_record_cdtor_fn): New function.
1589         (build_cdtor): Move from c-decl.c
1590         (c_build_cdtor_fns): New function.
1591
1592         * output.h (assemble_addr_to_section): Declare.
1593         (get_cdtor_priority_section): Likewise.
1594         * varasm.c (assemble_addr_to_section): New function.
1595         (get_cdtor_priority_section): Likewise.
1596         (default_named_section_asm_out_destructor): Use them.
1597         (destor_dtor_section_asm_out_destructor): Likewise.
1598         (default_named_section_asm_out_constructor): Likewise.
1599         (default_ctor_section_asm_out_constructor): Likewise.
1600         * config.gcc (*-*-vxworks*): Include vxworks.o.
1601         * config/t-vxworks (vxworks.o): New target.
1602         * config/vxworks.h (ALWAYS_NUMBER_CTORS_SECTIONS): Remove.
1603         (TARGET_ASM_CONSTRUCTOR): Define.
1604         (TARGET_ASM_DESTRUCTOR): Likewise.
1605         (vxworks_asm_out_constructor): Declare.
1606         (vxworks_asm_out_destructor): Likewise.
1607
1608         * c-common.c (get_priority): Check that we have not just an
1609         INTEGER_CST, but an integer constant with integeral type.
1610
1611 2007-02-25  Uros Bizjak  <ubizjak@gmail.com>
1612
1613         PR tree-optimization/30938
1614         * tree-vect-transform.c (vectorizable_call): Fix off-by-one error:
1615         use &dt[nargs-1] instead of &dt[nargs] in the call to
1616         vect_is_simple_use().
1617
1618 2007-02-25  Ulrich Weigand  <uweigand@de.ibm.com>
1619
1620         * reload.c (find_reloads_address_1): Handle PLUS expressions resulting
1621         from register elimination as PRE_MODIFY / POST_MODIFY increments.
1622         Do not attempt to handle MEM inside auto-inc expressions.
1623         * reload1.c (eliminate_regs_1): Do not attempt to handle elimination
1624         of a register modified by an auto-inc expression.  However, do handle
1625         elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
1626         (elimination_effects): Prohibit elimination of a register modified
1627         by an auto-inc expression.  Disable register elimination rules whose
1628         target register is modified by an auto-inc expression with variable
1629         increment.
1630
1631 2007-02-25  Zdenek Dvorak  <dvorakz@suse.cz>
1632
1633         * tree-ssa-loop-niter.c (compute_estimated_nb_iterations): Fix
1634         off-by-one error.
1635         (array_at_struct_end_p): New function.
1636         (idx_infer_loop_bounds): Use it.
1637         (estimate_numbers_of_iterations_loop): Export.
1638         * predict.c (predict_loops): Use estimated_loop_iterations_int.
1639         Do not use PRED_LOOP_EXIT on exits predicted by # of iterations.
1640         (tree_estimate_probability): Call record_loop_exits.
1641         * tree-data-ref.c (get_number_of_iters_for_loop): Replaced by ...
1642         (estimated_loop_iterations, estimated_loop_iterations_int,
1643         estimated_loop_iterations_tree): New functions.
1644         (analyze_siv_subscript_cst_affine,
1645         compute_overlap_steps_for_affine_1_2,
1646         analyze_subscript_affine_affine): Use estimated_loop_iterations_int.
1647         (analyze_miv_subscript): Use estimated_loop_iterations_tree.
1648         * predict.def (PRED_LOOP_ITERATIONS): Update comment.
1649         (PRED_LOOP_ITERATIONS_GUESSED): New.
1650         * cfgloop.c (record_loop_exits): Do nothing if there are no loops.
1651         * cfgloop.h (estimate_numbers_of_iterations_loop,
1652         estimated_loop_iterations_int): Declare.
1653
1654 2007-02-25  Mark Mitchell  <mark@codesourcery.com>
1655
1656         * doc/extend.texi: Document optional priority argument to
1657         constructors and destructors.
1658         * tree.c (init_priority_for_decl): Adjust GTY markers.
1659         (init_ttree): Use priority-info hash functions for
1660         init_priority_for_decl.
1661         (tree_map_eq): Rename to ...
1662         (tree_map_base_eq): ... this.
1663         (tree_map_marked_p): Rename to ...
1664         (tree_map_base_marked_p): ... this.
1665         (tree_map_base_hash): New function.
1666         (decl_init_priority_lookup): Rework.
1667         (decl_fini_priority_lookup): New function.
1668         (decl_priority_info): New function.
1669         (decl_init_priority_insert): Use it.
1670         (decl_fini_priority_insert): Likewise.
1671         (decl_restrict_base_lookup): Adjust for refactoring of tree_map
1672         hierarchy.
1673         (decl_restrict_base_insert): Likewise.
1674         (decl_debug_expr_insert): Likewise.
1675         (decl_value_expr_lookup): Likewise.
1676         (decl_value_expr_insert): Likewise.
1677         * tree.h (priority_type): New type.
1678         (decl_init_priority_lookup): Use priority_type.
1679         (decl_fini_priority_lookup): New function.
1680         (decl_init_priority_insert): Use priority_type.
1681         (decl_fini_priority_insert): New function.
1682         (DECL_HAS_INIT_PRIORITY): Tweak comments.
1683         (DECL_INIT_PRIORITY): Likewise.
1684         (SET_DECL_INIT_PRIORITY): Add comment.
1685         (DECL_FINI_PRIORITY): New macro.
1686         (SET_DECL_FINI_PRIORITY): Likewise.
1687         (DEFAULT_INIT_PRIORITY): Document.
1688         (MAX_INIT_PRIORITY): Likewise.
1689         (MAX_RESERVED_INIT_PRIORITY): Likewise.
1690         (tree_map_base): New type.
1691         (tree_map_base_eq): New function.
1692         (tree_map_base_hash): Likewise.
1693         (tree_map_base_marked_p): Likewise.
1694         (tree_map): Inherit from tree_map_base.
1695         (tree_map_eq): Make it a macro.
1696         (tree_map_marked_p): Likewise.
1697         (tree_int_map): Inherit from tree_map_base.
1698         (tree_int_map_eq): Make it a macro.
1699         (tree_int_map_hash): Likewise.
1700         (tree_int_map_marked_p): Likewise.
1701         (tree_priority_map): New type.
1702         (tree_priority_map_eq): New macro.
1703         (tree_priority_map_hash): Likewise.
1704         (tree_priority_map_marked_p): Likewise.
1705         * varasm.c (emults_decl): Adjust for refactoring of tree_map
1706         hierarchy.
1707         (emutls_common_1): Likewise.
1708         * lambda-code.c (replace_uses_equiv_to_x_with_y): Likewise.
1709         * tree-ssa-structalias.c (heapvar_lookup): Adjust for refactoring
1710         of tree_map hierarchy.
1711         * tree-cfg.c (move_stmt_r): Likewise.
1712         (new_label_mapper): Likewise.
1713         * c-tree.h (c_expand_body): Move to ...
1714         * c-common.h (c_expand_body): ... here.
1715         * c-decl.c (c_expand_body): Move to ...
1716         * c-common.c (c_expand_body): ... here.
1717         (c_common_attribute_table): Allow 1 argument for the constructor
1718         and destructor attributes.
1719         (get_priority): New function.
1720         (handle_constructor_attribute): Set DECL_INIT_PRIORITY.
1721         (handle_destructor_attribute): Set DECL_FINI_PRIORITY.
1722
1723 2007-02-24  Jan Hubicka  <jh@suse.cz>
1724
1725         PR middle-end/30509
1726         * tree-inline.c (copy_bb): Produce exact copy of EH info when copying for inlining.
1727
1728 2007-02-24  Uros Bizjak  <ubizjak@gmail.com>
1729             Jan Hubicka  <jh@suse.cz>
1730
1731         PR target/30778
1732         * i386.c (counter_mode): New function.
1733         (expand_set_or_movmem_via_loop): Use it.
1734         (expand_movmem_epilogue): Likewise; fix pasto.
1735         (ix86_expand_movmem): Do emit guard even for constant counts.
1736         (ix86_expand_setmem): Likewise.
1737
1738 2007-02-25  Nick Clifton  <nickc@redhat.com>
1739
1740         * config/frv/frv.h (ASM_OUTPUT_CASE_LABEL): Delete.
1741         (JUMP_TABLES_IN_TEXT_SECTION): Define.
1742
1743 2007-02-24  Uros Bizjak  <ubizjak@gmail.com>
1744
1745         PR target/30770
1746         * config/i386/i386.md (expand_movmem_epilogue): Fix typo, mask
1747         count argument with 0x10, not with 0x16.
1748         (expand_setmem_epilogue): Ditto.
1749
1750 2007-02-24  Mike Stump  <mrs@apple.com>
1751
1752         * config/i386/i386.c (output_pic_addr_const): Stubify optimized
1753         symbols.
1754
1755 2007-02-24  Richard Guenther  <rguenther@suse.de>
1756
1757         PR middle-end/30951
1758         * fold-const.c (fold_binary): Fold x +- CST op x for
1759         EQ_EXPR and NE_EXPR.
1760
1761 2007-02-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1762
1763         * pa.md (muldi3): Force subregs to registers in 64-bit expander.
1764
1765 2007-02-24  Jan Hubicka  <jh@suse.cz>
1766
1767         * cgraphunit.c (decide_is_function_needed): Honor
1768         -fkeep-inline-functions.
1769
1770 2007-02-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1771
1772         * builtins.c (fold_builtin_modf): New.
1773         (fold_builtin_2): Use it.
1774
1775 2007-02-24  Bernd Schmidt  <bernd.schmidt@analog.com>
1776
1777         * loop-iv.c (implies_p): Detect additional cases where A implies B.
1778         (determine_max_iter): Take additional LOOP arg; all callers changed.
1779         Lose broken logic dealing with PLUS.  Try to limit the upper bound by
1780         one using simplifications.
1781         (simplify_using_initial_values): Return if the expression becomes
1782         invalid due to altered regs.
1783
1784 2007-02-23  DJ Delorie  <dj@redhat.com>
1785
1786         * doc/tm.h (BIGGEST_ALIGNMENT): Clarify the purpose of this macro.
1787
1788 2007-02-23  Mike Stump  <mrs@apple.com>
1789
1790         * tlink.c (scan_linker_output): Parse linker messages from
1791         darwin9's linker better.
1792
1793 2007-02-23  Steve Ellcey  <sje@cup.hp.com>
1794
1795         PR debug/29614
1796         * varpool.c (varpool_assemble_pending_decls):  Set
1797         varpool_last_needed_node to null.
1798
1799 2007-02-23  DJ Delorie  <dj@redhat.com>
1800
1801         * config/i386/i386.c (ix86_data_alignment): Don't specify an
1802         alignment bigger than the object file can handle.
1803
1804 2007-02-23  Uros Bizjak  <ubizjak@gmail.com>
1805
1806         PR target/30825
1807         * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32,
1808         zero_extendsidi2_rex64): Penalize MMX register<->memory moves.
1809         (*movsf_1): Penalize MMX moves.
1810
1811 2007-02-23  Bernd Schmidt  <bernd.schmidt@analog.com>
1812
1813         * config/bfin/bfin.md (doloop_end): Fail for loops that can iterate
1814         2^32-1 or more times unless flag_unsafe_loop_optimizations.
1815
1816         * loop-iv.c (determine_max_iter): Moved in front of its sole user.
1817
1818 2007-02-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1819
1820         * builtins.c (fold_builtin_logb, fold_builtin_significand): New.
1821         (fold_builtin_1): Use them.
1822         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
1823         BUILT_IN_SIGNIFICAND.
1824
1825 2007-02-23  H.J. Lu  <hongjiu.lu@intel.com>
1826
1827         * config/i386/i386.c (bdesc_1arg): Initialize
1828         IX86_BUILTIN_MOVSHDUP and IX86_BUILTIN_MOVSLDUP with
1829         "__builtin_ia32_movshdup" and "__builtin_ia32_movsldup".
1830         (ix86_init_mmx_sse_builtins): Remove IX86_BUILTIN_MOVSHDUP
1831         and IX86_BUILTIN_MOVSLDUP.
1832
1833 2007-02-22  Paolo Bonzini  <bonzini@gnu.org>
1834
1835         PR rtl-optimization/30841
1836         * fwprop.c (propagate_rtx_1): Accept a VOIDmode replacement address.
1837
1838 2007-02-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1839
1840         * builtins.c (fold_builtin_frexp): New.
1841         (fold_builtin_2): Use it.
1842
1843 2007-02-22  Mark Mitchell  <mark@codesourcery.com>
1844
1845         * doc/invoke.texi (Spec Files): Document getenv spec function.
1846
1847         * gcc.c (getenv_spec_function): New function.
1848         (static_spec_functions): Add it.
1849         * config/vxworks.h (VXWORKS_TARGET_DIR): Remove.
1850         (VXWORKS_ADDITIONAL_CPP_SPEC): Use getenv to find the VxWorks
1851         header files.
1852
1853 2007-02-22  Michael Matz  <matz@suse.de
1854
1855         PR c++/29433
1856         * dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
1857         (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.
1858
1859 2007-02-22  Ian Lance Taylor  <iant@google.com>
1860
1861         PR debug/30898
1862         * dwarf2out.c (concatn_mem_loc_descriptor): New static function.
1863         (mem_loc_descriptor): Call it.
1864
1865 2007-02-22  Zdenek Dvorak  <dvorakz@suse.cz>
1866             Ira Rosen  <irar@il.ibm.com>
1867
1868         * tree-data-ref.c (ptr_ptr_may_alias_p): Take alias sets into account.
1869
1870 2007-02-22  Ira Rosen  <irar@il.ibm.com>
1871
1872         PR tree-optimization/30843
1873         * tree-vect-transform.c (vect_transform_loop): Remove strided scalar
1874         stores only after all the group is vectorized.
1875
1876 2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>
1877
1878         PR tree-optimization/30858
1879         * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
1880         in the reduction cycle have a single use in the loop.
1881         * tree-vectorizer.h (relevant): Add documentation.
1882
1883 2007-02-20  Mike Stump  <mrs@apple.com>
1884
1885         * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
1886         * configure: Regenerate.
1887
1888 2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>
1889
1890         Change the defaults of some parameters and options.
1891         * config/spu/spu-protos.h (spu_optimization_options): Declare.
1892         * config/spu/spu.c (spu_optimization_options): Add.
1893         (spu_override_options): Change params in spu_optimization_options.
1894         * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.
1895
1896         Register 127 is only 16 byte aligned when used as a frame pointer.
1897         * config/spu/spu-protos.h (spu_init_expanders): Declare.
1898         * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
1899         HARD_FRAME_POINTER_REGNUM.
1900         (spu_legitimate_address):  Use regno_aligned_for_reload.
1901         (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
1902         aligned when frame_pointer_needed is true.
1903         (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
1904         to 8 bits.
1905         * config/spu/spu.h (INIT_EXPANDERS): Define.
1906
1907         Make sure shift and rotate instructions have valid immediate operands.
1908         * config/spu/predicates.md (spu_shift_operand): Remove.
1909         * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
1910         * config/spu/constraints.md (W, O): Extend range.
1911         * config/spu/spu.md (umask, nmask): Define.
1912         (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
1913         lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
1914         rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
1915         rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
1916         spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
1917         (lshr<mode>3_reg):  Fix rtl description.
1918
1919         Make sure mulhisi immediate operands are valid.
1920         * config/spu/predicates.md (imm_K_operand): Add.
1921         * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.
1922
1923         Generate constants using fsmbi and andi.
1924         * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
1925         (print_operand, spu_split_immediate, classify_immediate,
1926         fsmbi_const_p): Handle IC_FSMBI2.
1927
1928         Correctly handle a CONST_VECTOR containing symbols.
1929         * config/spu/spu.c (print_operand): Handle HIGH correctly.
1930         (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
1931         (immediate_load_p): Allow symbols that use 2 instructions to create.
1932         (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
1933         with symbols when flag_pic is set.
1934         (const_vector_immediate_p): New.
1935         (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
1936         accept a CONST_VECTOR with symbols.
1937         (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
1938         accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
1939         correctly.
1940         * config/spu/spu.md (high, low): Delete.
1941         (low_<mode>): Define.
1942
1943         Remove INTRmode and INTR_REGNUM, which didn't work.
1944         * config/spu/spu.c (spu_conditional_register_usage): Remove reference
1945         of INTR_REGNUM.
1946         * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
1947         set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
1948         peephole2 pattern): Don't use INTR or 131.
1949         (movintrcc): Delete.
1950         * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
1951         CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
1952         * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
1953         (UNSPEC_SET_INTR): Add.
1954         * config/spu/spu-modes.def (INTR): Remove.
1955
1956         More accurate warnings about run-time relocations.
1957         * config/spu/spu.c (reloc_diagnostic): Test in_section.
1958
1959         Correctly warn about immediate arguments to specific intrinsics.
1960         * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
1961         (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
1962         the instruction predicate.
1963
1964         Fix tree check errors with latest update.
1965         * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
1966         CALL_EXPR_ARG.
1967         (spu_expand_builtin): Use CALL_EXPR_FN.
1968
1969         Add missing specific intrinsics.
1970         * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
1971         si_bislede.
1972         * config/spu/spu_internals.h: Ditto.
1973
1974         Fix incorrect operand modifiers.
1975         * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
1976         * config/spu/spu.md (xor<mode>3):  Change %S to %J.
1977
1978         Optimize one case of zero_extend of a vec_select.
1979         * config/spu/spu.md (_vec_extractv8hi_ze):  Add.
1980
1981         Accept any immediate for hbr.
1982         * config/spu/spu.md (hbr):  Change s constraints to i.
1983
1984 2007-02-21  Paul Brook  <paul@codesourcery.com>
1985
1986         * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
1987         condexec_count when skipping USE and CLOBBER.
1988
1989 2007-02-21  Nick Clifton  <nickc@redhat.com>
1990
1991         * common.opt (Warray-bounds): Add Warning attribute.
1992         (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
1993         Likewise.
1994         (fsized-zeroes): Add Optimization attribute.
1995         (fsplit-wide-types, ftree-scev-cprop): Likewise.
1996         * c.opt (Wc++0x-compat): Add Warning attribute.
1997
1998 2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>
1999
2000         PR middle-end/30761
2001         * reload1.c (eliminate_regs_in_insn): In the single_set special
2002         case, attempt to re-recognize the insn before falling back to
2003         having reload fix it up.
2004
2005 2007-02-20  Eric Christopher  <echristo@gmail.com>
2006
2007         * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
2008         Rewrite accordingly.
2009         (frv_read_iacc_argument): Ditto.
2010         (frv_expand_set_builtin): Take a call instead of arglist, update for
2011         above changes.
2012         (frv_expand_unop_builtin): Ditto.
2013         (frv_expand_binop_builtin): Ditto.
2014         (frv_expand_cut_builtin): Ditto.
2015         (frv_expand_binopimm_builtin): Ditto.
2016         (frv_expand_voidbinop_builtin): Ditto.
2017         (frv_expand_int_void2arg): Ditto.
2018         (frv_expand_prefetches): Ditto.
2019         (frv_expand_voidtriop_builtin): Ditto.
2020         (frv_expand_voidaccop_builtin): Ditto.
2021         (frv_expand_load_builtin): Ditto.
2022         (frv_expand_store_builtin): Ditto.
2023         (frv_expand_mdpackh_builtin): Ditto.
2024         (frv_expand_mclracc_builtin): Ditto.
2025         (frv_expand_mrdacc_builtin): Ditto.
2026         (frv_expand_mwtacc_builtin): Ditto.
2027         (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
2028         calls for above.
2029
2030 2007-02-20  Janis Johnson  <janis187@us.ibm.com>
2031
2032         * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
2033         * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
2034         cmpb instruction.
2035         (HAVE_GAS_DFP): Check for assembler support of decimal floating
2036         point instructions.
2037         * configure: Regenerate.
2038         * config.in: Regenerate.
2039         * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
2040         * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
2041         masks to power6 and power6x and to POWERPC_MASKS.
2042         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
2043         _ARCH_PWR6.
2044         * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
2045         * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
2046         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
2047         Access PROTOTYPE as variable, not mask.
2048
2049 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
2050
2051         * rtl.h (remove_reg_equal_equiv_notes): New prototype.
2052         * rtlanal.c (remove_reg_equal_equiv_notes): New function.
2053         * combine.c (adjust_for_new_dest): Use it.
2054         * postreload.c (reload_combine): Likewise.
2055
2056 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
2057
2058         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
2059         notes on an insn with multiple sets, even if single_set returns
2060         non-NULL for that insn.
2061
2062 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2063
2064         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
2065         scalbn and scalbln.
2066
2067 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
2068
2069         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
2070         if user didn't pass it.
2071         * config/i386/darwin.h (CC1_SPEC): Likewise.
2072         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
2073         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
2074         -mmacosx-version-min.
2075
2076 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2077             Uros Bizjak  <ubizjak@gmail.com>
2078
2079         * optabs.h (enum optab_index): Add new OTI_scalb.
2080         (scalb_optab): Define corresponding macro.
2081         * optabs.c (init_optabs): Initialize scalb_optab.
2082         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
2083         patterns.
2084         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
2085         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
2086         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
2087         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
2088         flag_unsafe_math_optimizations is set.
2089
2090         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
2091         to implement scalbf, scalb and scalbl built-ins as inline x87
2092         intrinsics.
2093
2094 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2095             DJ Delorie <dj@redhat.com>
2096
2097         PR other/30824
2098         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
2099         (diagnostic_report_diagnostic): ... here, and turn them into real
2100         errors. If warnings are inhibited, no need to do anything.
2101
2102 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
2103
2104         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
2105         better code generation.
2106
2107 2007-02-20  Ben Elliston  <bje@au.ibm.com>
2108
2109         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
2110
2111 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
2112
2113         * config/alpha/alpha.c, config/alpha/alpha.md,
2114         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
2115         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
2116         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
2117         config/arm/lib1funcs.asm: Follow spelling conventions.
2118
2119         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
2120         config/fr30/fr30.md, config/i386/i386.h,
2121         config/iq2000/iq2000.h, config/iq2000/predicates.md,
2122         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
2123         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
2124         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
2125         config/rs6000/altivec.md, config/rs6000/rs6000.c,
2126         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
2127         config/sparc/sparc.c, config/sparc/sparc.h,
2128         config/sparc/sparc.md, config/spu/constraints.md,
2129         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
2130         conventions.
2131
2132 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
2133
2134         PR target/29943
2135         * varasm.c (use_blocks_for_decl_p): Return false for decls with
2136         alias attribute.
2137
2138 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
2139
2140         * doc/invoke.texi (-ftree-lrs): Remove.
2141
2142 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
2143
2144         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
2145         NULL.
2146
2147 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
2148
2149         * config/ia64/ia64.c (ia64_expand_builtin): Use the
2150         new CALL_EXPR_FN macro for retrieving the function
2151         declaration of the input expression.
2152
2153 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
2154
2155         * c.opt (Waddress): New.
2156         * common.opt (Walways-true): Delete.
2157         (Wstring-literal-comparison): Delete.
2158         * doc/invoke.texi (Warning Options): Delete -Walways-true and
2159         -Wstring-literal-comparison. Add -Waddress.
2160         (Waddress): New.
2161         (Walways-true): Delete.
2162         (Wstring-literal-comparison): Delete.
2163         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
2164         consistently instead of -Walways-true in example.
2165         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
2166         * c-typeck.c (parser_build_binary_op): Replace
2167         -Wstring-literal-comparison and -Walways-true with -Waddress.
2168         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
2169         with -Waddress.
2170
2171 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
2172
2173         * tree-cfg.c (dump_function_to_file): Be prepared for functions
2174         without DECL_STRUCT_FUNCTION initialized.
2175
2176 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
2177
2178         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
2179         due to calls to functions taking pointers as parameters.
2180
2181 2007-02-19  Richard Henderson  <rth@redhat.com>
2182
2183         PR debug/29558
2184         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
2185         in memory.
2186
2187 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
2188
2189         * config/s390/s390.c (s390_call_saved_register_used,
2190         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
2191         accessed to the new scheme.
2192
2193 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
2194
2195         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
2196         (cris_print_index, cris_print_operand, cris_print_operand_address)
2197         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
2198         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
2199         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
2200         GET_CODE () == xxx.
2201         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
2202         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
2203         GO_IF_LEGITIMATE_ADDRESS): Ditto.
2204         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
2205         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
2206         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
2207         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
2208         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
2209         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
2210         (uminsi3, call, call_value): Ditto.
2211         (define_split: indir_to_reg_split, unnamed): Ditto.
2212
2213 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
2214
2215         PR tree-optimization/30975
2216         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
2217         wrong assert.
2218
2219 2007-02-18  Eric Christopher  <echristo@gmail.com>
2220
2221         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
2222         Remove use of arglist.
2223         (mips_expand_builtin): Remove use of arglist, pass in expr.
2224         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
2225         (mips_expand_builtin_movtf): Ditto.
2226         (mips_expand_builtin_compare): Ditto.
2227
2228 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
2229
2230         * tree-sra.c (sra_build_assignment): Replace assertion
2231         checking with a comment explaining why it can't be done.
2232
2233 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
2234
2235         PR middle-end/30833
2236         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
2237         during CALL_EXPR representation conversion.
2238         * tree-ssa-propagate.c (set_rhs): Likewise.
2239
2240 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
2241
2242         * tree-sra.c (sra_build_assignment): Disable assertion checking
2243         for now.
2244
2245 2007-02-18  Roger Sayle  <roger@eyesopen.com>
2246
2247         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
2248         instead of calling build2 with a GIMPLE_MODIFY_STMT.
2249         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
2250         Likewise.
2251         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
2252         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
2253         gimplify_init_ctor_eval_range, gimple_push_cleanup,
2254         gimplify_omp_for, gimplify_omp_atomic_pipeline,
2255         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
2256         force_gimple_operand): Likewise.
2257         * ipa-cp.c (constant_val_insert): Likewise.
2258         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
2259         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
2260         perfect_nestify): Likewise.
2261         * langhooks.c (lhd_omp_assignment): Likewise.
2262         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
2263         lower_copyprivate_clauses, lower_send_clauses,
2264         lower_send_shared_vars, expand_parallel_call,
2265         expand_omp_for_generic, expand_omp_for_static_nochunk,
2266         expand_omp_for_static_chunk, expand_omp_sections,
2267         lower_omp_single_copy, lower_omp_for_lastprivate,
2268         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
2269         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
2270         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
2271         Likewise.
2272
2273 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
2274
2275         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
2276         config/sh/sh.md: Follow spelling conventions.
2277
2278         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
2279         config/frv/predicates.md: Follow spelling conventions.
2280
2281         * config/m68k/linux-unwind.h: Fix a comment typo.
2282         * target.h: Follow spelling conventions.
2283
2284 2007-02-18  Roger Sayle  <roger@eyesopen.com>
2285
2286         PR rtl-optimization/28173
2287         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
2288         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
2289         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
2290         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
2291         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
2292
2293 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2294
2295         * builtins.c (fold_builtin_load_exponent): New.
2296         (fold_builtin_2): Use it.
2297
2298 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
2299
2300         PR rtl-optimization/30773
2301         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
2302         if we fail to attach a REG_EQUIV note.
2303
2304 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
2305             Roger Sayle  <roger@eyesopen.com>
2306
2307         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
2308
2309 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
2310
2311         * calls.c (initialize_argument_information): Pass original EXP
2312         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
2313         code to split complex arguments here, as part of initializing the
2314         ARGS array.
2315         (expand_call): Remove code that builds a list of arguments and
2316         inserts implicit arguments into it.  Instead, just count how many
2317         implicit arguments there will be so we can determine the size of
2318         the ARGS array, and let initialize_argument_information do the work.
2319         (split_complex_values): Delete unused function.
2320
2321 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
2322
2323         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
2324
2325 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
2326
2327         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
2328         for arg pointer based indexed addressing.
2329
2330 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
2331
2332         * config/ia64/ia64.h, config/ia64/ia64.md,
2333         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
2334         spelling conventions.
2335
2336 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
2337
2338         * config/m68k/m68k.c (split_di): New.
2339         * config/m68k/m68k-protos.h: Declare split_di.
2340         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
2341           Improve predicate handling and split constant shifts.
2342
2343 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
2344
2345         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
2346         parameter for register bitfield operations, general predicates
2347         cleanup
2348
2349 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
2350
2351         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
2352         * config/m68k/linux-unwind.h: New file.
2353
2354 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
2355
2356         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
2357         config/i386/athlon.md, config/ia64/ia64.md,
2358         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
2359         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
2360         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
2361         tree-ssa-loop-niter.c, tree-vect-analyze.c,
2362         tree-vect-transform.c: Fix comment typos.
2363
2364 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
2365
2366         * sched-deps.c (find_insn_list): Remove.
2367         * sched-int.h: Remove the prototype for find_insn_list.
2368
2369 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
2370
2371         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
2372         to linker.
2373         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
2374         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
2375         darwin_rs6000_override_options.
2376         (C_COMMON_OVERRIDE_OPTIONS): Expect
2377         darwin_macosx_version_min to be non-NULL always.
2378         (TARGET_C99_FUNCTIONS): Likewise.
2379         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
2380         (DARWIN_MINVERSION_SPEC): New.
2381         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
2382         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
2383         to cc1*.
2384         (DARWIN_MINVERSION_SPEC): New.
2385         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
2386         value.
2387         * config/darwin-c.c (darwin_cpp_builtins): Expect
2388         darwin_macosx_version_min to be non-NULL always.
2389
2390         * config/rs6000/rs6000.c: Clean up trailing whitespace.
2391
2392 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
2393
2394         * config/i386/i386.h (x86_use_xchgb): New.
2395         (TARGET_USE_XCHGB): New macro.
2396         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
2397         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
2398         Split after reload into bswaphi for shifts of 8.
2399         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
2400         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
2401         or when optimizing for size.
2402
2403 2007-02-16  Richard Guenther  <rguenther@suse.de>
2404             Christian Bruel  <christian.bruel@st.com>
2405
2406         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
2407         DECLs but prefer SSA_NAMEs over DECLs.
2408
2409 2007-02-16  Richard Guenther  <rguenther@suse.de>
2410
2411         * tree-flow-inline.h (single_imm_use_p): Remove.
2412         (zero_imm_uses_p): Likewise.
2413         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
2414         instead of single_imm_use_p.
2415         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
2416         zero_imm_uses_p.
2417
2418 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2419
2420         PR other/27843
2421         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
2422         nested double- and backquotes.
2423
2424 2007-02-15  Roger Sayle  <roger@eyesopen.com>
2425
2426         PR middle-end/30391
2427         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
2428         should be unreachable.
2429         (build2_stat): Allow construction of MODIFY_EXPR at any time.
2430         For the time being redirect GIMPLE_MODIFY_STMT to the new
2431         (renamed) build_gimple_modify_stmt_stat.
2432         (build2_gimple_stat): Rename to...
2433         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
2434         Always build a GIMPLE_MODIFY_STMT node.
2435         * tree.h (build2_gimple, build2_gimple_stat): Delete.
2436         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
2437         declarations.
2438
2439         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
2440         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
2441         * tree-complex.c (set_component_ssa_name, expand_complex_move,
2442         expand_complex_div_wide): Likewise.
2443         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
2444         * tree-ssa-loop-im.c (schedule_sm): Likewise.
2445         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
2446         * tree-ssa-loop-manip.c (create_iv): Likewise.
2447         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
2448         abs_replacement): Likewise.
2449         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
2450         realify_fake_stores): Likewise.
2451
2452         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
2453         node rather than a GIMPLE_MODIFY_STMT node.
2454         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
2455         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
2456         Likewise.
2457         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
2458         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
2459         GIMPLE_MODIFY_STMT.
2460
2461 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
2462
2463         PR middle-end/30433
2464         * fold-const.c (fold_comparison): Add back the
2465         folding of constant complex comparisions.
2466
2467 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
2468
2469         PR middle-end/30729
2470         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
2471         effects unknown to this function, return early.
2472
2473 2007-02-15  Ian Lance Taylor  <iant@google.com>
2474
2475         * lower-subreg.c (move_eh_region_note): New static function.
2476         (resolve_simple_move): Call it.
2477         (decompose_multiword_subregs): Track blocks for which we resolve a
2478         simple move which is also a control flow insn.  Pass them to
2479         find_many_sub_basic_blocks.
2480         (pass_lower_subreg): Add TODO_verify_flow.
2481         (pass_lower_subreg2): Likewise.
2482
2483 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
2484             Brooks Moses  <brooks.moses@codesourcery.com>
2485             Lee Millward  <lee.millward@codesourcery.com>
2486
2487         * tree.h (enum tree_code_class): Add tcc_vl_exp.
2488         (VL_EXP_CLASS_P): New.
2489         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
2490         TREE_CODE_LENGTH.
2491         (TREE_OPERAND_CHECK_CODE): Likewise.
2492         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
2493         (TREE_RTL_OPERAND_CHECK): Likewise.
2494         (tree_operand_check_failed): Make second parameter the whole tree
2495         instead of its code.  Fixed callers.
2496         (VL_EXP_CHECK): New.
2497         (TREE_OPERAND_LENGTH): New.
2498         (VL_EXP_OPERAND_LENGTH): New.
2499         (CALL_EXPR_FN): New.
2500         (CALL_EXPR_STATIC_CHAIN): New.
2501         (CALL_EXPR_ARGS): New.
2502         (CALL_EXPR_ARG): New.
2503         (call_expr_nargs): New.
2504         (CALL_EXPR_ARGP): New.
2505         (build_nt_call_list): Declare.
2506         (build_vl_exp_stat): Declare.
2507         (build_vl_exp): New.
2508         (build_call_list): Declare.
2509         (build_call_nary): Declare.
2510         (build_call_valist): Declare.
2511         (build_call_array): Declare.
2512         (call_expr_arg): Declare.
2513         (call_expr_argp): Declare.
2514         (call_expr_arglist): Declare.
2515         (fold_build_call_list): Declare.
2516         (fold_build_call_list_initializer): Declare.
2517         (fold_call_expr): Declare to replace fold_builtin.
2518         (fold_builtin_fputs): Update to agree with modified definition.
2519         (fold_builtin_strcpy): Likewise.
2520         (fold_builtin_strncpy): Likewise.
2521         (fold_builtin_memory_chk): Likewise.
2522         (fold_builtin_stxcpy_chk): Likewise.
2523         (fold_builtin_strncpy_chk): Likewise.
2524         (fold_builtin_next_arg): Likewise.
2525         (fold_build_call_expr): Declare.
2526         (fold_builtin_call_list): Declare.
2527         (fold_builtin_call_valist): Declare.
2528         (build_call_expr): Declare.
2529         (validate_arglist): Update to agree with modified definition.
2530         (tree_operand_length): New.
2531         (call_expr_arg_iterator): New.
2532         (init_call_expr_arg_iterator): New.
2533         (next_call_expr_arg): New.
2534         (first_call_expr_arg): New.
2535         (more_call_expr_args_p): New.
2536         (FOR_EACH_CALL_EXPR_ARG): New.
2537
2538         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
2539         and tcc_gimple_stmt.
2540         (tree_code_size): Update documentation.  Use sizeof (tree) rather
2541         than sizeof (char *).
2542         (tree_size): Likewise.  Add case for tcc_vl_exp.
2543         (tree_node_structure): Add case for tcc_vl_exp.
2544         (contains_placeholder_p): Likewise.
2545         (substitute_in_expr): Likewise.
2546         (substitute_placeholder_in_expr): Likewise.
2547         (stabilize_reference_1): Likewise.
2548         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
2549         to diagnose breakage of this interface for constructing CALL_EXPRs.
2550         (build_nt): Add similar assertion here.
2551         (build_nt_call_list): New.
2552         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
2553         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
2554         TREE_CODE_LENGTH.
2555         (get_callee_fndecl): Use new CALL_EXPR accessors.
2556         (tree_operand_check_failed): Change parameters to pass entire node
2557         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
2558         (process_call_operands): New.
2559         (build_vl_exp_stat): New.
2560         (build_call_list): New.
2561         (build_call_nary): New.
2562         (build_call_valist): New.
2563         (build_call_array): New.
2564         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
2565         (call_expr_arglist): New.
2566
2567         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
2568         tcc_vl_exp instead of a fixed-size tcc_expression.
2569
2570         * doc/c-tree.texi (CALL_EXPR): Document new representation and
2571         accessors for CALL_EXPRs.
2572         (AGGR_INIT_EXPR): Likewise.
2573
2574 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
2575             Brooks Moses  <brooks.moses@codesourcery.com>
2576             Lee Millward  <lee.millward@codesourcery.com>
2577
2578         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
2579         (expand_builtin_nonlocal_goto): Change parameter to be entire
2580         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
2581         (expand_builtin_prefetch): Likewise.
2582         (expand_builtin_classify_type): Likewise.
2583         (mathfn_built_in): Return NULL_TREE instead of 0.
2584         (expand_errno_check): Use new CALL_EXPR accessors.
2585         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
2586         Return NULL_RTX instead of 0.
2587         (expand_builtin_mathfn_2): Likewise.
2588         (expand_builtin_mathfn_3): Likewise.
2589         (expand_builtin_interclass_mathfn): Likewise.
2590         (expand_builtin_sincos): Likewise.
2591         (expand_builtin_cexpi): Likewise.
2592         (expand_builtin_int_roundingfn): Likewise.
2593         (expand_builtin_int_roundingfn_2): Likewise.
2594         (expand_builtin_pow): Likewise.
2595         (expand_builtin_powi): Likewise.
2596         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
2597         of arglist, fixing callers appropriately.  Use new CALL_EXPR
2598         accessors and constructors.  Return NULL_RTX instead of 0.
2599         (expand_builtin_strstr): Likewise.
2600         (expand_builtin_strchr): Likewise.
2601         (expand_builtin_strrchr): Likewise.
2602         (expand_builtin_strpbrk): Likewise.
2603         (expand_builtin_memcpy): Likewise.
2604         (expand_builtin_mempcpy): Likewise.
2605         (expand_builtin_mempcpy_args): New.
2606         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
2607         (expand_builtin_memmove_args): New.
2608         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
2609         (expand_movstr): Likewise.
2610         (expand_builtin_strcpy): Likewise.
2611         (expand_builtin_strcpy_args): New.
2612         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
2613         (expand_builtin_strncpy): Likewise.
2614         (expand_builtin_memset): Likewise.
2615         (expand_builtin_memset_args): New.
2616         (expand_builtin_bzero): Similarly to expand_builtin_memset.
2617         (expand_builtin_memcmp): Likewise.
2618         (expand_builtin_strcmp): Likewise.
2619         (expand_builtin_strncmp): Likewise.
2620         (expand_builtin_strcat): Likewise.
2621         (expand_builtin_strncat): Likewise.
2622         (expand_builtin_strspn): Likewise.
2623         (expand_builtin_strcspn): Likewise.
2624         (expand_builtin_args_info): Likewise.
2625         (expand_builtin_va_start): Likewise.
2626         (gimplify_va_arg_expr): Likewise.
2627         (expand_builtin_va_end): Likewise.
2628         (expand_builtin_va_copy): Likewise.
2629         (expand_builtin_frame_address): Likewise.
2630         (expand_builtin_alloca): Likewise.
2631         (expand_builtin_bswap): Likewise.
2632         (expand_builtin_unop): Likewise.
2633         (expand_builtin_fputs): Likewise.
2634         (expand_builtin_expect): Likewise.
2635         (expand_builtin_fabs): Likewise.
2636         (expand_builtin_copysign): Likewise.
2637         (expand_builtin_printf): Likewise.
2638         (expand_builtin_fprintf): Likewise.
2639         (expand_builtin_sprintf): Likewise.
2640         (expand_builtin_init_trampoline): Likewise.
2641         (expand_builtin_signbit): Likewise.
2642         (expand_builtin_fork_or_exec): Likewise.
2643         (expand_builtin_sync_operation): Likewise.
2644         (expand_builtin_compare_and_swap): Likewise.
2645         (expand_builtin_lock_test_and_set): Likewise.
2646         (expand_builtin_lock_release): Likewise.
2647         (expand_builtin): Likewise.
2648         (builtin_mathfn_code): Likewise.
2649
2650         (fold_builtin_constant_p): Pass call arguments individually instead
2651         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
2652         accessors and constructors.  Return NULL_TREE instead of 0.
2653         (fold_builtin_expect): Likewise.
2654         (fold_builtin_classify_type): Likewise.
2655         (fold_builtin_strlen): Likewise.
2656         (fold_builtin_nan): Likewise.
2657         (integer_valued_real_p): Likewise.
2658         (fold_trunc_transparent_mathfn): Likewise.
2659         (fold_fixed_mathfn): Likewise.
2660         (fold_builtin_cabs): Likewise.
2661         (fold_builtin_sqrt): Likewise.
2662         (fold_builtin_cbrt): Likewise.
2663         (fold_builtin_cos): Likewise.
2664         (fold_builtin_cosh): Likewise.
2665         (fold_builtin_tan): Likewise.
2666         (fold_builtin_sincos): Likewise.
2667         (fold_builtin_cexp): Likewise.
2668         (fold_builtin_trunc): Likewise.
2669         (fold_builtin_floor): Likewise.
2670         (fold_builtin_ceil): Likewise.
2671         (fold_builtin_round): Likewise.
2672         (fold_builtin_int_roundingfn): Likewise.
2673         (fold_builtin_bitop): Likewise.
2674         (fold_builtin_bswap): Likewise.
2675         (fold_builtin_logarithm): Likewise.
2676         (fold_builtin_hypot): Likewise.
2677         (fold_builtin_pow): Likewise.
2678         (fold_builtin_powi): Likewise.
2679         (fold_builtin_exponent): Likewise.
2680         (fold_builtin_memset): Likewise.
2681         (fold_builtin_bzero): Likewise.
2682         (fold_builtin_memory_op): Likewise.
2683         (fold_builtin_bcopy): Deleted; call site changed to invoke
2684         fold_builtin_memory_op directly.
2685         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
2686         (fold_builtin_strncpy): Likewise.
2687         (fold_builtin_memcmp): Likewise.
2688         (fold_builtin_strcmp): Likewise.
2689         (fold_builtin_strncmp): Likewise.
2690         (fold_builtin_signbit): Likewise.
2691         (fold_builtin_copysign): Likewise.
2692         (fold_builtin_isascii): Likewise.
2693         (fold_builtin_toascii): Likewise.
2694         (fold_builtin_isdigit): Likewise.
2695         (fold_builtin_fabs): Likewise.
2696         (fold_builtin_abs): Likewise.
2697         (fold_builtin_fmin_fmax): Likewise.
2698         (fold_builtin_carg): Likewise.
2699         (fold_builtin_classify): Likewise.
2700         (fold_builtin_unordered_cmp): Likewise.
2701
2702         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
2703         New functions split out from fold_builtin_1.
2704         (fold_builtin_n): New.
2705         (fold_builtin_varargs): New.
2706         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
2707         instead.
2708         (fold_call_expr): New.
2709         (build_function_call_expr): Rewrite to use new helper function.
2710         (fold_builtin_call_list): New.
2711         (build_call_expr): New.
2712         (fold_builtin_call_valist): New.
2713         (rewrite_call_expr): New.
2714         (validate_arg): New.
2715         (validate_arglist): Change parameter to be entire CALL_EXPR instead
2716         of an arglist.  Change return type to bool.  Use new CALL_EXPR
2717         accessors.
2718
2719         (fold_builtin_strstr):  Pass call arguments individually instead
2720         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
2721         accessors and constructors.  Return NULL_TREE instead of 0.
2722         (fold_builtin_strchr): Likewise.
2723         (fold_builtin_strrchr): Likewise.
2724         (fold_builtin_strpbrk): Likewise.
2725         (fold_builtin_strcat): Likewise.
2726         (fold_builtin_strncat): Likewise.
2727         (fold_builtin_strspn): Likewise.
2728         (fold_builtin_strcspn): Likewise.
2729         (fold_builtin_fputs): Likewise.
2730         (fold_builtin_next_arg): Likewise.
2731         (fold_builtin_sprintf): Likewise.
2732
2733         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
2734         NULL_RTX instead of 0.
2735         (expand_builtin_memory_chk): Likewise.
2736         (maybe_emit_chk_warning): Likewise.
2737         (maybe_emit_sprintf_chk_warning): Likewise.
2738
2739         (fold_builtin_object_size): Pass call arguments individually instead
2740         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
2741         accessors and constructors.  Return NULL_TREE instead of 0.
2742         (fold_builtin_memory_chk): Likewise.
2743         (fold_builtin_stxcpy_chk): Likewise.
2744         (fold_builtin_strncpy_chk): Likewise.
2745         (fold_builtin_strcat_chk): Likewise.
2746         (fold_builtin_strcat_chk): Likewise.
2747         (fold_builtin_strncat_chk): Likewise.
2748         (fold_builtin_sprintf_chk): Likewise.
2749         (fold_builtin_snprintf_chk): Likewise.
2750         (fold_builtin_printf): Likewise.
2751         (fold_builtin_vprintf): Likewise.
2752
2753         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
2754         constructors.
2755         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
2756         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
2757         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
2758         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
2759         (fold_unary): Likewise.
2760         (fold_binary): Likewise.
2761         (fold_ternary): Remove CALL_EXPR case, since they are no longer
2762         ternary expressions.
2763         (fold): Add logic for tcc_vl_exp.
2764         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
2765         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
2766         (fold_build3_stat): Add assertion to flag broken interface for
2767         constructing CALL_EXPRs.
2768         (fold_build_call_list): New.
2769         (fold_build_call_list_initializer): New.
2770         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
2771         constructors.
2772         (fold_strip_sign_ops): Likewise.
2773
2774 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
2775             Brooks Moses  <brooks.moses@codesourcery.com>
2776             Lee Millward  <lee.millward@codesourcery.com>
2777
2778         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
2779         accessors and dump arguments explicitly.
2780
2781         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
2782         TREE_CODE_LENGTH.
2783         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
2784         explicitly.
2785         (print_call_name): Use new CALL_EXPR accessors.
2786
2787         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
2788         CALL_EXPR arguments explicitly instead of as a list.  Use
2789         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
2790
2791         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
2792         (vrp_visit_stmt): Likewise.
2793
2794         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
2795         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
2796         TREE_CODE_LENGTH.
2797         (force_move_till_expr): Likewise.
2798
2799         * targhooks.c (default_external_stack_protect_fail): Use
2800         build_call_expr instead of build_function_call_expr.
2801         (default_hidden_stack_protect_fail): Likewise.
2802
2803         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
2804         build the call.
2805
2806         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
2807         and walk arguments explicitly.
2808
2809         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
2810         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
2811         (expand_simple_operations): Likewise.
2812         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
2813
2814         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
2815         of TREE_CODE_LENGTH.
2816         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
2817
2818         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
2819         instead of TREE_CODE_LENGTH.
2820
2821         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
2822         (tree_ic_transform): Likewise.
2823         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
2824         parameter instead of arglist.  Fix callers.
2825         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
2826         (tree_stringops_transform): Likewise.
2827         (tree_indirect_call_to_profile): Likewise.
2828         (tree_stringops_values_to_profile): Likewise.
2829
2830         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
2831         (eliminate_tail_call): Likewise.
2832
2833         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
2834
2835         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
2836         Use TREE_OPERAND_LENGTH and generalize to handle any number of
2837         operands.
2838         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
2839
2840         * omp-low.c (build_omp_barrier): Use build_call_expr.
2841         (lower_rec_input_clauses): Likewise.
2842         (lower_reduction_clauses): Likewise.
2843         (expand_parallel_call): Likewise.
2844         (maybe_catch_exception): Likewise.
2845         (expand_omp_for_generic): Likewise.
2846         (expand_omp_for_static_nochunk): Likewise.
2847         (expand_omp_sections): Likewise.
2848         (lower_omp_single_simple): Likewise.
2849         (lower_omp_single_copy): Likewise.
2850         (lower_omp_master): Likewise.
2851         (lower_omp_ordered): Likewise.
2852         (lower_omp_critical): Likewise.
2853
2854         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
2855         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
2856
2857         * tree-gimple.c (is_gimple_call_addr): Fix doc.
2858         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
2859         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
2860
2861         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
2862         and generalize to handle any number of operands.
2863         (chrec_contains_undetermined): Likewise.
2864         (tree_contains_chrecs): Likewise.
2865         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
2866
2867         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
2868
2869         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
2870         fold_call_expr instead of fold_builtin.
2871         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
2872         match declarations there.
2873         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
2874         updates.
2875
2876         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
2877         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
2878
2879         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
2880         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
2881
2882         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
2883         accessors.
2884
2885         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
2886         (execute_cse_sincos): Use new CALL_EXPR accessors.
2887
2888         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
2889
2890         * gimple-low.c (lower_function_body): Use build_call_expr.
2891         (lower_builtin_setjmp): Likewise.
2892
2893         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
2894         (set_storage_via_libcall): Likewise.
2895         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
2896         instead of TREE_CODE_LENGTH.
2897         (expand_expr_real_1): Use new CALL_EXPR accessors.
2898
2899         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
2900         generalize to handle any number of operands.
2901         (TB_parent_eq): Likewise.
2902
2903         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
2904         (strip_builtin_expect): Likewise.
2905
2906         * function.c (gimplify_parameters): Use build_call_expr.
2907
2908         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
2909         instead of TREE_CODE_LENGTH.
2910
2911         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
2912         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
2913
2914         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
2915         iterators.
2916
2917         * gimplify.c (build_stack_save_restore): Use build_call_expr.
2918         (gimplify_decl_expr): Likewise.
2919         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
2920         Use new CALL_EXPR iterators.
2921         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
2922         (gimplify_modify_expr_to_memset): Likewise.
2923         (gimplify_variable_sized_compare): Likewise.
2924         (gimplify_omp_atomic_fetch_op): Likewise.
2925         (gimplify_omp_atomic_pipeline): Likewise.
2926         (gimplify_omp_atomic_mutex): Likewise.
2927         (gimplify_function_tree): Likewise.
2928
2929         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
2930         (call_expr_flags): Likewise.
2931         (expand_call): Likewise.
2932
2933         * except.c (expand_builtin_eh_return_data_regno): Pass entire
2934         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
2935         accessors.
2936
2937         * coverage.c (create_coverage): Use build_call_expr.
2938
2939         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
2940         (temp_call_expr_obstack): New.
2941         (pool_copy_list): Delete.
2942         (temp_copy_call_expr): New.
2943         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
2944         CALL_EXPR accessors.  Get rid of special goo for copying argument
2945         lists and use temp_copy_call_expr instead.
2946         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
2947         CALL_EXPR accessors.
2948         (create_expression_by_pieces): Likewise.  Use build_call_array
2949         to construct the result instead of fold_build3.
2950         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
2951         dealing with argument lists.
2952         (init_pre): Remove references to expression_node_pool and
2953         list_node_pool.  Init temp_call_expr_obstack instead.
2954         (fini_pre): Remove references to expression_node_pool and
2955         list_node_pool.
2956
2957         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
2958         and walk arguments explicitly instead of as a list.
2959
2960         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
2961         (mx_register_decls): Likewise.
2962         (mudflap_register_call): Likewise.
2963         (mudflap_finish_file): Likewise.
2964
2965         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
2966         (ipa_callsite_compute_param): Likewise.
2967
2968         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
2969         accessors and constructor.
2970
2971         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
2972         accessors and constructor.
2973         (convert_tramp_reference): Likewise.
2974         (convert_call_expr): Likewise.
2975         (finalize_nesting_tree_1): Likewise.
2976
2977         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
2978         accessors.
2979
2980         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
2981
2982         * tree-inline.c (initialize_inlined_parameters): Pass entire
2983         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
2984         accessors.
2985         (estimate_num_insns_1): Use new CALL_EXPR accessors.
2986         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
2987
2988         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
2989         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
2990         (vectorizable_reduction): Likewise.
2991         (vectorizable_call): Use new CALL_EXPR iterators.
2992         (vectorizable_conversion): Use build_call_expr.
2993         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
2994         (vect_gen_widened_results_half): Use build_call_expr.
2995         (vect_setup_realignment): Likewise.
2996         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
2997
2998         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
2999         (pass_through_call): Likewise.
3000         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
3001         fold_builtin.
3002
3003         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
3004         (tree_gen_pow2_profiler): Likewise.
3005         (tree_gen_one_value_profiler): Likewise.
3006         (tree_gen_ic_func_profiler): Likewise.
3007         (tree_gen_average_profiler): Likewise.
3008         (tree_gen_ior_profiler): Likewise.
3009
3010         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
3011         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
3012         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
3013
3014         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
3015         of TREE_CODE_LENGTH.
3016
3017         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
3018         of TREE_CODE_LENGTH.
3019
3020         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
3021         constructor.
3022         (convert_to_integer): Likewise.
3023
3024         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
3025         accessors.
3026
3027 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
3028             Brooks Moses  <brooks.moses@codesourcery.com>
3029             Lee Millward  <lee.millward@codesourcery.com>
3030
3031         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
3032         accessors.
3033         * config/frv/frv.c (frv_expand_builtin): Likewise.
3034         * config/s390/s390.c (s390_expand_builtin): Likewise.
3035
3036         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
3037         (sparc_expand_builtin): Use new CALL_EXPR accessors.
3038
3039         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
3040         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
3041         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
3042         (ix86_expand_store_builtin): Likewise.
3043         (ix86_expand_unop_builtin): Likewise.
3044         (ix86_expand_unop1_builtin): Likewise.
3045         (ix86_expand_sse_compare): Likewise.
3046         (ix86_expand_sse_comi): Likewise.
3047         (ix86_expand_vec_init_builtin): Likewise.
3048         (ix86_expand_vec_ext_builtin): Likewise.
3049         (ix86_expand_vec_set_builtin): Likewise.
3050         (ix86_expand_builtin): Use new CALL_EXPR accessors.
3051
3052         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
3053         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
3054
3055         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
3056         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
3057         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
3058
3059         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
3060         build_call_expr.
3061         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
3062         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
3063         arglist.  Use new CALL_EXPR accessors.  Fix callers.
3064         (altivec_expand_abs_builtin): Likewise.
3065         (rs6000_expand_binop_builtin): Likewise.
3066         (altivec_expand_predicate_builtin): Likewise.
3067         (altivec_expand_lv_builtin): Likewise.
3068         (spe_expand_stv_builtin): Likewise.
3069         (altivec_expand_stv_builtin): Likewise.
3070         (rs6000_expand_ternop_builtin): Likewise.
3071         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
3072         (altivec_expand_st_builtin): Likewise.
3073         (altivec_expand_dst_builtin): Likewise.
3074         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
3075         arglist.  Use new CALL_EXPR accessors.  Fix callers.
3076         (altivec_expand_vec_set_builtin): Likewise.
3077         (altivec_expand_vec_ext_builtin): Likewise.
3078         (altivec_expand_builtin): Use new CALL_EXPR accessors.
3079         (spe_expand_builtin): Likewise.
3080         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
3081         arglist.  Use new CALL_EXPR accessors.  Fix callers.
3082         (spe_expand_evsel_builtin): Likewise.
3083         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
3084         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
3085
3086         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
3087         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
3088         (arm_expand_unop_builtin): Likewise.
3089         (arm_expand_builtin): Use new CALL_EXPR accessors.
3090
3091         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
3092         accessors.
3093
3094         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
3095         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
3096         (bfin_expand_unop_builtin): Likewise.
3097         (bfin_expand_builtin): Use new CALL_EXPR accessors.
3098
3099 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
3100             Brooks Moses  <brooks.moses@codesourcery.com>
3101             Lee Millward  <lee.millward@codesourcery.com>
3102
3103         * c-semantics.c (build_stmt): Add internal diagnostic check.
3104
3105         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
3106         accessors.  Print arguments explicitly instead of as a list.
3107
3108         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
3109
3110         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
3111         (c_finish_omp_flish): Likewise.
3112
3113         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
3114         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
3115         instead of TREE_CODE_LENGTH.
3116         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
3117         (c_warn_unused_result): Likewise.
3118
3119 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3120
3121         PR c/26494
3122         * doc/invoke.texi (Warning Options): Remove
3123         -Werror-implicit-function-declaration.
3124         (Wimplicit-function-declaration): Update description.
3125         * opts.c (common_handle_option): Move handling of -Werror=* to...
3126         (enable_warning_as_error): ...here.
3127         * opts.h (enable_warning_as_error): Declare.
3128         * c-decl.c (implicit_decl_warning): Unless
3129         -Wno-implicit-function-declaration is given, emit a pedwarn if
3130         -std=c99 or emit a warning if -Wimplicit-function-declaration.
3131         * c.opt (Wimplicit-function-declaration): Replace
3132         mesg_implicit_function_declaration with
3133         warn_implicit_function_declaration.
3134         * c-opts.c (c_common_handle_option):
3135         -Werror-implicit-function-declaration is exactly equal as
3136         -Werror=implicit-function-declaration.
3137         (set_Wimplicit): Replace mesg_implicit_function_declaration with
3138         warn_implicit_function_declaration.
3139         (c_common_post_options): -Wimplict-function-declaration is enabled
3140         by default by -std=c99, otherwise is disabled by default.
3141         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
3142
3143 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
3144
3145         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
3146         DECL on the rhs to a DECL on the lhs for debug info purposes if the
3147         former is ignored but not the latter.
3148
3149 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
3150
3151         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
3152         is made and the reference doesn't use the alias set of its type,
3153         do not create the temporary using that type.
3154
3155 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
3156
3157         * jump.c: Remove prototypes for delete_computation and
3158         delete_prior_computation.
3159
3160 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
3161
3162         * jump.c (get_label_after): Delete.
3163         (get_label_before, delete_computation, delete_jump,
3164         delete_prior_computation, follow_jumps): Move...
3165         * reorg.c (delete_computation, delete_prior_computation): ... here...
3166         (get_label_before, delete_jump): ... making these static ...
3167         (follow_jumps): ... and simplifying this since it only runs after
3168         reload.
3169         * rtl.h (get_label_after, get_label_before, delete_jump,
3170         follow_jumps): Delete prototypes.
3171
3172 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
3173
3174         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
3175
3176 2007-02-15  Nick Clifton  <nickc@redhat.com>
3177
3178         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
3179         order to prevent it from being munged by the target.
3180
3181 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
3182
3183         * config/i386/i386.md: Remove misleading comment.
3184
3185 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
3186
3187         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
3188         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
3189         invalid patterns.
3190
3191 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
3192
3193         * tree-sra.c (instantiate_missing_elements): Canonicalize
3194         bit-field types.
3195         (sra_build_assignment): New.
3196         (generate_copy_inout, generate_element_copy,
3197         generate_element_zero, generate_one_element_init): Use it.
3198
3199 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
3200
3201         * tree-sra.c (instantiate_missing_elements): Canonicalize
3202         bit-field types.
3203         (sra_build_assignment): New.
3204         (generate_copy_inout, generate_element_copy,
3205         generate_element_zero, generate_one_element_init): Use it.
3206
3207 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
3208
3209         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
3210         limbo die nodes.
3211
3212 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
3213
3214         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
3215         types as aggregates not scalars.
3216         * function.c (assign_stack_temp_for_type): Likewise.
3217
3218 2007-02-14  Roger Sayle  <roger@eyesopen.com>
3219             Zdenek Dvorak  <dvorakz@suse.cz>
3220
3221         * tree-dump.c (dump_switch_p_1): Require exact match of the option
3222         name.
3223
3224 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
3225
3226         * passes.c (next_pass_1): Clear the next field of the copied
3227         pass structure.
3228
3229 2007-02-14  Richard Henderson  <rth@redhat.com>
3230
3231         * tree-sra.c (early_sra): New.
3232         (decl_can_be_decomposed_p): Deny va_list if early_sra.
3233         (tree_sra_early, pass_sra_early): New.
3234         * tree-pass.h (pass_sra_early): Declare.
3235         * passes.c (init_optimization_passes): Use it.
3236
3237 2007-02-14  Richard Guenther  <rguenther@suse.de>
3238
3239         * flags.h (issue_strict_overflow_warning): Convert to a macro.
3240
3241 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
3242
3243          PR tree-optimization/30771
3244         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
3245         also phi nodes.
3246         (vect_analyze_operations): Induction phis can now be marked as
3247         used_in_loop.
3248         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
3249         Update documentation accordingly.
3250
3251 2007-02-14  Nick Clifton  <nickc@redhat.com>
3252
3253         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
3254         most 3 arguments are supported.
3255         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
3256
3257 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
3258
3259         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
3260         Ensure dst->current is valid.
3261
3262 2007-02-13  Paul Brook  <paul@codesourcery.com>
3263
3264         * config.gcc: Add arm*-*-uclinux-*eabi.
3265         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
3266         (SUBTARGET_EXTRA_LINK_SPEC): Define.
3267         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
3268         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
3269         (LINK_SPEC): Define.
3270         (LIB_SPEC): Define.
3271         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
3272         register.
3273         * config/arm/uclinux-eabi.h: New file.
3274         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
3275         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
3276         based targets.
3277
3278 2007-02-13  Ian Lance Taylor  <iant@google.com>
3279
3280         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
3281         * flags.h (warn_strict_overflow): Declare.
3282         (enum warn_strict_overflow_code): Define.
3283         (issue_strict_overflow_warning): New static inline function.
3284         * opts.c (warn_strict_overflow): New variable.
3285         (common_handle_option): Handle OPT_Wstrict_overflow and
3286         OPT_Wstrict_overflow_.
3287         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
3288         OPT_Wall.
3289         * fold-const.c: Include intl.h.
3290         (fold_deferring_overflow_warnings): New static variable.
3291         (fold_deferred_overflow_warning): New static variable.
3292         (fold_deferred_overflow_code): New static variable.
3293         (fold_defer_overflow_warnings): New function.
3294         (fold_undefer_overflow_warnings): New function.
3295         (fold_undefer_and_ignore_overflow_warnings): New function.
3296         (fold_deferring_overflow_warnings_p): New function.
3297         (fold_overflow_warning): New static function.
3298         (make_range): Add strict_overflow_p parameter.  Change all
3299         callers.
3300         (extract_muldiv, extract_muldiv_1): Likewise.
3301         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
3302         tree_expr_nonnegative_p.
3303         (fold_negate_expr): Call fold_overflow_warning.
3304         (fold_range_test): Likewise.
3305         (fold_comparison): Likewise.
3306         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
3307         instead of tree_expr_nonnegative_p.
3308         (tree_expr_nonnegative_warnv_p): Rename from
3309         tree_expr_nonnegative_p, add strict_overflow_p parameter.
3310         (tree_expr_nonnegative_p): New function.
3311         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
3312         strict_overflow_p parameter.
3313         (tree_expr_nonzero_p): New function.
3314         * passes.c (verify_interpass_invariants): New static function.
3315         (execute_one_pass): Call it.
3316         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
3317         warnings.
3318         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
3319         (estimate_numbers_of_iterations): Likewise.
3320         (scev_probably_wraps_p): Likewise.
3321         * tree-ssa-ccp.c: Include "toplev.h".
3322         (evaluate_stmt): Defer fold overflow warnings until we know we are
3323         going to optimize.
3324         (struct fold_stmt_r_data): Add stmt field.
3325         (fold_stmt_r): Defer fold overflow warnings until we know we
3326         optimized.
3327         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
3328         (fold_stmt_inplace): Likewise.
3329         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
3330         (cleanup_control_expr_graph): Defer fold overflow warnings until
3331         we know we are going to optimize.
3332         * tree-cfg.c (fold_cond_expr_cond): Likewise.
3333         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
3334         Likewise.
3335         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
3336         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
3337         * tree-ssa-loop-manip.c (create_iv): Likewise.
3338         * c-typeck.c (build_conditional_expr): Likewise.
3339         (build_binary_op): Likewise.
3340         * tree-vrp.c (vrp_expr_computes_nonzero): Call
3341         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
3342         (extract_range_from_unary_expr): Likewise.
3343         * simplify-rtx.c (simplify_const_relational_operation): Warn when
3344         assuming that signed overflow does not occur.
3345         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
3346         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
3347         (fold_defer_overflow_warnings): Declare.
3348         (fold_undefer_overflow_warnings): Declare.
3349         (fold_undefer_and_ignore_overflow_warnings): Declare.
3350         (fold_deferring_overflow_warnings_p): Declare.
3351         (tree_expr_nonzero_warnv_p): Declare.
3352         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
3353         of warning options.
3354         (Warning Options): Document -Wstrict-overflow.
3355         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
3356         (tree-ssa-ccp.o): Likewise.
3357         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
3358         (fold-const.o): Depend on intl.h.
3359
3360 2007-02-13  Ian Lance Taylor  <iant@google.com>
3361
3362         PR middle-end/30751
3363         * lower-subreg.c (resolve_simple_move): Decompose subregs in
3364         addresses.
3365
3366 2007-02-13  Stuart Hastings  <stuart@apple.com>
3367
3368         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
3369
3370 2007-02-13  Richard Henderson  <rth@redhat.com>
3371
3372         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
3373         handled_component_p before looking for the indirect_ref.
3374
3375 2007-02-13  Richard Henderson  <rth@redhat.com>
3376
3377         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
3378         remove flags clobber.
3379         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
3380         (bswaphi_lowpart): New.
3381         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
3382         remove TARGET_BSWAP test.  Delete expander of the same name.
3383
3384         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
3385         (expand_unop): Use them.
3386
3387 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
3388
3389         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
3390         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
3391         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
3392         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
3393         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
3394         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
3395         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
3396         assembler dialect choice from asm templates.
3397
3398 2007-02-12  Richard Henderson  <rth@redhat.com>
3399
3400         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
3401         (fixuns_trunc<SSEMODEF>si2): Use it.
3402         * config/i386/sse.md (vec_setv4sf_0): Export.
3403         * config/i386/i386.c (ix86_build_const_vector): Export.
3404         (ix86_split_convert_uns_si_sse): Rename from
3405         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
3406         * config/i386/i386-protos.h: Update.
3407
3408 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3409
3410         PR c/29521
3411         * c-typeck.c (c_finish_return): Improve warning message.
3412
3413 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3414
3415         * alias.c (find_symbolic_term): Delete unused function.
3416
3417 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
3418
3419         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
3420         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
3421         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
3422
3423 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
3424
3425         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
3426         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
3427         the function, temporarily point the debug interface to the null one.
3428
3429 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
3430
3431         * dwarf2out.c (round_up_to_align): New static function.
3432         (field_byte_offset): Use it to round the offset.
3433
3434 2007-02-12  Richard Henderson  <rth@redhat.com>
3435
3436         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
3437         (inswl_const): Export.
3438
3439 2007-02-12  Richard Henderson  <rth@redhat.com>
3440
3441         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
3442         result mode of the libcall, convert back to outmode.
3443
3444 2007-02-12  Roger Sayle  <roger@eyesopen.com>
3445
3446         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
3447         (bswapdi2): New define_expand to implement 32-bit implementation.
3448
3449 2007-02-12  Nick Clifton  <nickc@redhat.com>
3450
3451         * doc/invoke.texi (Overall Options): Document --help=.
3452         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
3453         (cc1_options): Pass --help= on to cc1.
3454         (display_help): Add description of --help=.
3455         (process_command): Add code to handle --help=.  Allow translated
3456         --help and --target-help switches to be passed on to compiler
3457         sub-process.
3458         (main): Remove unused if statement.
3459         * opts.c (columns): Remove.
3460         (LEFT_COLUMN): Define.
3461         (wrap_help): Add columns argument.
3462         (print_filtered_help): Change parameters to be an include bitmask,
3463         an exclude bitmask, an any bitmask and the column width.  Move the
3464         code to display the params list here.  Add code to display the
3465         status of options rather than their descriptions if the quiet flag
3466         is not active.
3467         (print_specific_help): Change parameters to be an include bitmask,
3468         an exclude bitmask and an any bitmask.  Move code to look up the
3469         column width here.  Decide upon the title for an options listing.
3470         (common_handle_options): Add code to handle --help=.  Adapt code
3471         for --help and --target-help to use the revised form of the
3472         print_specific_help function.
3473         (print_help): Delete.
3474         (print_param_help): Delete.
3475         (print_switch): Delete.
3476         * opts.h (cl_lang_count): Add prototype.
3477         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
3478         CL_MAX_OPTION_CLASS): New defines.
3479         * optc-gen.awk: Add construction of cl_lang_count.
3480         * c.opt: Add Warning attribute to warning options and Optimization
3481         attribute to optimization options.
3482         * common.opt: Likewise.
3483         Add --help=.
3484         Add -fhelp and -ftarget-help as aliases for the transformed --help
3485         and --target-help options.
3486         * opt-functions.awk: Add code to handle Warning and Optimization
3487         attributes.
3488
3489 2007-02-12  Richard Henderson  <rth@redhat.com>
3490
3491         * config/alpha/constraints.md: New file.
3492         * config/alpha/alpha.c: Include tm-constrs.h.
3493         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
3494         alpha_extra_constraint): Remove.
3495         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
3496         * config/alpha/alpha-protos.h: Update.
3497         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
3498         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
3499         (EXTRA_CONSTRAINT): Remove.
3500         * config/alpha/alpha.md: Include constraints.md.
3501         (adddi splitter): Use satisfies_constraint_*.
3502         * config/alpha/predicates.md (add_operand): Likewise.
3503         (sext_add_operand, addition_operation): Likewise.
3504
3505 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
3506
3507         PR tree-optimization/29145
3508         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
3509         in our handling of restrict qualified pointers.
3510
3511 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3512
3513         PR middle-end/7651
3514         * doc/invoke.texi (Wunused-value): Update description.
3515         (Wextra): Delete item.
3516         * opts.c (set_Wextra): Don't use the value of Wextra to set the
3517         value of Wunused-value.
3518         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
3519         (c_finish_stmt_expr): Don't check extra_warnings.
3520         (emit_side_effect_warnings): The caller is responsible to check
3521         warn_unused_value.
3522
3523 2007-02-11  Roger Sayle  <roger@eyesopen.com>
3524             Matt Thomas  <matt@3am-software.com>
3525
3526         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
3527
3528 2007-02-11  Roger Sayle  <roger@eyesopen.com>
3529
3530         * simplify-rtx.c (simplify_relational_operation_1): Optimize
3531         comparisons of POPCOUNT against zero.
3532         (simplify_const_relational_operation): Likewise.
3533
3534 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3535
3536         * doc/invoke.texi (Wextra): Delete outdated paragraph.
3537
3538 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3539
3540         * dwarf2out.c (root_type): Delete unused function.
3541
3542 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3543
3544         * genattrtab.c (contained_in_p): Delete unused function.
3545         (write_expr_attr_cache): Likewise.
3546
3547 2007-02-11  Jan Hubicka  <jh@suse.cz>
3548
3549         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
3550         previous patch.
3551
3552 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
3553
3554         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
3555         to add the REG_EQ* note.
3556         * see.c (see_merge_one_use_extension): Likewise.
3557         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
3558         turn REG_EQUAL notes into REG_EQUIV notes if the target
3559         register may have more than one set.
3560         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
3561         * gcse.c (try_replace_reg): Likewise.
3562         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
3563         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
3564         more than one REG_EQUIV note.
3565         * reload1.c (gen_reload): Use set_unique_reg_note.
3566
3567 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
3568
3569         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
3570         (ix86_builtin_conversion): New function.
3571
3572 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
3573
3574         PR target/29487
3575         * tree.h (DECL_REPLACEABLE_P): New macro.
3576         * except.c (set_nothrow_function_flags): Likewise.
3577
3578 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
3579             Ira Rosen  <irar@il.ibm.com>
3580             Dorit Nuzman  <dorit@il.ibm.com>
3581
3582         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
3583         * targhooks.c (default_builtin_vectorized_conversion): New.
3584         * targhooks.h (default_builtin_vectorized_function): New declaration.
3585         * target.h (struct vectorize): Add builtin_conversion field.
3586         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
3587         stmt_vec_info_type value.
3588         (vectorizable_conversion): New declaration.
3589         * tree-vect-analyze.c (vect_analyze_operations): Add
3590         vectorizable_conversion call.
3591         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
3592         * tree-vect-transform.c (vectorizable_conversion): New function.
3593         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
3594         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
3595         mode.
3596         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
3597         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
3598         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
3599         or ALTIVEC_BUILTIN_VCFSX.
3600
3601 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3602
3603         PR target/30634
3604         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
3605         CONST_DOUBLE and operand 0 is a hard register.
3606         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
3607         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
3608         is a hard floating-point register.
3609
3610 2007-02-10  Richard Henderson  <rth@redhat.com>
3611             Jakub Jelinek  <jakub@redhat.com>
3612             Alexandre Oliva  <aoliva@redhat.com>
3613
3614         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
3615         * builtin-types.def (BT_WORD): Make unsigned.
3616         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
3617         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
3618         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
3619         * c-decl.c (grokdeclarator): Don't error if !have_tls.
3620         * c-parser.c (c_parser_omp_threadprivate): Likewise.
3621         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
3622         emulated tls.
3623         * expr.c (emutls_var_address): New.
3624         (expand_expr_real_1): Expand emulated tls.
3625         (expand_expr_addr_expr_1): Likewise.
3626         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
3627         * output.h (emutls_finish): Declare.
3628         * toplev.c (compile_file): Call it.
3629         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
3630         address before wrapping in CONST.
3631         * varasm.c (emutls_htab, emutls_object_type): New.
3632         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
3633         (get_emutls_object_name, get_emutls_object_type): New.
3634         (get_emutls_init_templ_addr, emutls_decl): New.
3635         (emutls_common_1, emutls_finish): New.
3636         (assemble_variable): When emulating tls, swap decls; generate
3637         constructor for the emutls objects.
3638         (do_assemble_alias): When emulating tls, swap decl and target name.
3639         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
3640         for emulated tls.
3641         * varpool.c (decide_is_variable_needed): Look at force_output.
3642         Recurse for emulated tls.
3643         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
3644         with decide_is_variable_needed.
3645         * emutls.c: New file.
3646         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
3647         tls_object for real tls.
3648
3649 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
3650
3651         PR rtl-optimization/29599
3652         * reload1.c (eliminate_regs_in_insn): Take the destination
3653         mode into account when computing the offset.
3654
3655 2007-02-09  Stuart Hastings  <stuart@apple.com>
3656             Richard Henderson  <rth@redhat.com>
3657
3658         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
3659         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
3660         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
3661         fixuns_truncdfhi2): New.
3662         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
3663         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
3664         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
3665         (floatunssidf2): Allow nonimmediate source.
3666         * gcc/config/i386/sse.md (movdi_to_sse): New.
3667         (vec_concatv2di): Drop '*'.
3668         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
3669         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
3670         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
3671         New.
3672         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
3673         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
3674         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
3675         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
3676         (ix86_build_signbit_mask): Fix decl of v, refactor to call
3677         ix86_build_const_vector.
3678         (x86_emit_floatuns): Rewrite.
3679
3680 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3681
3682         * genautomata.c (longest_path_length): Delete unused function.
3683         (struct state): Delete unused longest_path_length.
3684         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
3685         (get_free_state): Delete unused.
3686
3687 2007-02-09  Jan Hubicka  <jh@suse.cz>
3688
3689         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
3690         * doc/invoke.texi (inline-unit-growth): Update default value.
3691
3692         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
3693         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
3694         (rebuild_cgraph_edges): Likewise.
3695         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
3696         (dump_cgraph_node): Dump frequencies.
3697         (cgraph_clone_edge): Add frequency scales.
3698         (cgraph_clone_node): Add freuqnecy.
3699         * cgraph.h (cgraph_edge): Add freuqnecy argument.
3700         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
3701         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
3702         * tree-pass.h (TODO_rebuild_frequencies): New constant.
3703         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
3704         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
3705         (save_inline_function_body): Likewise.
3706         * ipa-inline.c: inluce rtl.h
3707         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
3708         (cgraph_edge_badness): Use frequencies.
3709         (cgraph_decide_recursive_inlining): Update clonning.
3710         (cgraph_decide_inlining_of_small_function): Dump frequency.
3711         * predict.c (estimate_bb_frequencies): Export.
3712         * predict.h (estimate_bb_frequencies): Declare.
3713         * tree-inline.c (copy_bb): Watch overflows.
3714         (expand_call_inline): Update call of cgraph_create_edge.
3715         (optimize_inline_calls): Use TODO flags to update frequnecies.
3716         * passes.h: Include predict.h
3717         (init_optimization_passes): Move profile ahead.
3718         (execute_function_todo): Handle TODO_rebuild_frequencies.
3719
3720 2007-02-09  Roger Sayle  <roger@eyesopen.com>
3721
3722         * config/alpha/alpha.c (emit_insxl): Force the first operand of
3723         the insbl or inswl pattern into a register.
3724
3725 2007-02-09  Roger Sayle  <roger@eyesopen.com>
3726
3727         * config/ia64/ia64.md (bswapdi2): New define_insn.
3728
3729 2007-02-09  Richard Henderson  <rth@redhat.com>
3730
3731         * config/i386/constraints.md (Ym): New constraint.
3732         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
3733         (movdi_1_rex64): Split sse and xmm general register moves from
3734         memory move alternatives.  Use conditional register constraints.
3735         (movsf_1, movdf_integer): Likewise.
3736         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
3737         (movdf_integer_rex64): New.
3738         (pushsf_rex64): Fix output constraints.
3739         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
3740         (sse2_stored): Likewise.
3741         (sse2_storeq_rex64): New.
3742         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
3743         amd and not generic.
3744         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
3745         for optimize_size.  Remove SF/DFmode hack.
3746
3747 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
3748
3749         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
3750         (bit_SSE4a): New.
3751
3752 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
3753             Richard Sandiford  <richard@codesourcery.com>
3754
3755         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
3756         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
3757         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
3758         m68k/t-mlib to tmake_file.
3759         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
3760         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
3761         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
3762         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
3763         variable is not empty, add t-$m68k_arch_family to tmake_file.
3764         Add t-mlibs to tmake_file.
3765         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
3766         * config/m68k/t-cf: New file.
3767         * config/m68k/t-m68k: Likewise.
3768         * config/m68k/t-mlibs: Likewise.
3769         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
3770         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
3771         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
3772         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
3773         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
3774         Delete.
3775         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
3776         (INSTALL_LIBGCC): Delete.
3777         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
3778         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
3779         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
3780         (M68K_MLIB_CPU): Define.
3781         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
3782         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
3783         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
3784
3785 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
3786             Richard Guenther  <rguenther@suse.de>
3787
3788         PR middle-end/23361
3789         * fold-const.c (fold_comparison): Handle obfuscated comparisons
3790         against INT_MIN/INT_MAX.
3791         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
3792         file if a loop is removed.
3793
3794 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
3795
3796         * calls.c (store_one_arg): Pass correct alignment to
3797         emit_push_insn for non-BLKmode values.
3798         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
3799         unaligned stack slot via a suitably aligned slot.
3800
3801 2007-02-08  DJ Delorie  <dj@redhat.com>
3802
3803         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
3804         warnings.
3805         (legal_subregs): Use unsigned char, make const.
3806         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
3807
3808 2007-02-08  Paul Brook  <paul@codesourcery.com>
3809
3810         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
3811         special interworking needed.
3812
3813 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
3814
3815         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
3816         conditional to __SSE2__.
3817         (Entries below should have been added to first ChangeLog
3818         entry for amdfam10 dated 2007-02-05)
3819         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
3820         defined.
3821         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
3822         defined.
3823         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
3824         defined.
3825
3826 2007-02-08  DJ Delorie  <dj@redhat.com>
3827
3828         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
3829         * config/m32c/m32c.c (legal_subregs): New.
3830         (m32c_illegal_subreg_p): New.
3831         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
3832         unsupported subregs of hard regs.
3833
3834 2007-02-08  Jan Hubicka  <jh@suse.cz>
3835
3836         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
3837         the same one; always update histograms.
3838
3839 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
3840
3841         * passes.c (init_optimization_passes): Tidy comment.
3842
3843 2007-02-08  Roger Sayle  <roger@eyesopen.com>
3844
3845         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
3846         strip zero_extend, bswap and rotates from POCOUNT's argument.
3847         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
3848         zero_extend and rotates from PARITY's argument.
3849         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
3850         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
3851         of an integer constant at compile-time.
3852
3853 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
3854
3855         PR 30562
3856         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
3857         Update all users.
3858         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
3859         users.
3860         (init_alias_info):
3861         * tree-ssa-live.c (remove_unused_locals): Do not remove
3862         TREE_ADDRESSABLE variables.
3863         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
3864         * tree-ssa-operands.c (add_virtual_operand): Remove argument
3865         FOR_CLOBBER.  Update all users.
3866         If VAR has an associated alias set, add a virtual operand for
3867         it if no alias is found to conflict with the memory reference.
3868
3869 2007-02-07  Jan Hubicka  <jh@suse.cz>
3870             Robert Kidd <rkidd@crhc.uiuc.edu>
3871
3872         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
3873
3874 2007-02-07  Ian Lance Taylor  <iant@google.com>
3875
3876         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
3877
3878 2007-02-07  Roger Sayle  <roger@eyesopen.com>
3879
3880         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
3881         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
3882         tablejumpdi, movsi_to_cr_one): Remove constraints from
3883         define_expand's match_operands.
3884
3885 2007-02-07  Roger Sayle  <roger@eyesopen.com>
3886
3887         * global.c (compute_regsets): Move declatation of "i" inside of
3888         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
3889
3890 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
3891
3892         PR c++/30703
3893         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
3894         of INDIRECT_REF <RESULT_DECL>.
3895
3896         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
3897
3898 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
3899             Kaz Kojima  <kkojima@gcc.gnu.org>
3900
3901         PR target/29746
3902         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
3903         properly.
3904         (sh_initialize_trampoline): Add parentheses to avoid a warning.
3905
3906 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
3907
3908         * doc/loop.texi: Document possibility not to perform disambiguation
3909         of loops with multiple latches.
3910         * cfgloopmanip.c (alp_enum_p): Removed.
3911         (add_loop): Handle subloops.  Use get_loop_body_with_size.
3912         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
3913         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
3914         the new forwarder block.
3915         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
3916         Handle the case latch is NULL.
3917         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
3918         when marking loop exits.
3919         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
3920         be modified.
3921         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
3922         disambiguate_loops_with_multiple_latches.
3923         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
3924         before fix_loop_structure.
3925         * cfgloop.c: Include pointer-set.h and output.h.
3926         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
3927         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
3928         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
3929         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
3930         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
3931         disambiguate_multiple_latches, get_loop_body_with_size,
3932         disambiguate_loops_with_multiple_latches): New functions.
3933         (flow_loop_dump): Dump multiple latch edges.
3934         (flow_loop_nodes_find): Handle loops with multiple latches.
3935         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
3936         (glb_enum_p): Modified.
3937         (get_loop_body): Use get_loop_body_with_size.
3938         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
3939         (AVOID_CFG_MODIFICATIONS): New constant.
3940         (disambiguate_loops_with_multiple_latches, add_loop,
3941         get_loop_body_with_size): Declare.
3942         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
3943
3944 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
3945
3946         PR inline-asm/28686
3947         * global.c (compute_regsets): New function.
3948         (global_alloc): Refactored ELIMINABLE_REGSET
3949         and NO_GLOBAL_ALLOC_REGS computation out.
3950         (rest_of_handle_global_alloc): Call compute_regsets()
3951         for non-optimizing case.
3952
3953 2007-02-06  Richard Henderson  <rth@redhat.com>
3954
3955         * config/i386/constraints.md (Y2): Rename from Y.
3956         (Yi): New constraint.
3957         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
3958         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
3959         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
3960         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
3961         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
3962         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
3963         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
3964         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
3965         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
3966         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
3967         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
3968         vec_extractv2si_1): Change Y constraints to Y2.
3969         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
3970         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
3971         Change Y constraints to Y2.
3972         (sse2_loadld): Change Y constraints to x.
3973
3974 2007-02-06  Roger Sayle  <roger@eyesopen.com>
3975
3976         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
3977         (parity<mode>2): New define_expand using rs6000_emit_parity.
3978         * config/rs6000/rs6000.c (rs6000_emit_popcount,
3979         rs6000_emit_parity): New functions.
3980         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
3981    &n