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PR tree-optimization/30843
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-02-22  Ira Rosen  <irar@il.ibm.com>
2
3         PR tree-optimization/30843
4         * tree-vect-transform.c (vect_transform_loop): Remove strided scalar 
5         stores only after all the group is vectorized.
6
7 2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>
8
9         PR tree-optimization/30858
10         * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
11         in the reduction cycle have a single use in the loop.
12         * tree-vectorizer.h (relevant): Add documentation.
13
14 2007-02-20  Mike Stump  <mrs@apple.com>
15
16         * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
17         * configure: Regenerate.
18
19 2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>
20
21         Change the defaults of some parameters and options.
22         * config/spu/spu-protos.h (spu_optimization_options): Declare.
23         * config/spu/spu.c (spu_optimization_options): Add.
24         (spu_override_options): Change params in spu_optimization_options.
25         * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.
26
27         Register 127 is only 16 byte aligned when used as a frame pointer.
28         * config/spu/spu-protos.h (spu_init_expanders): Declare.
29         * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
30         HARD_FRAME_POINTER_REGNUM.
31         (spu_legitimate_address):  Use regno_aligned_for_reload.
32         (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
33         aligned when frame_pointer_needed is true.
34         (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
35         to 8 bits.
36         * config/spu/spu.h (INIT_EXPANDERS): Define.
37
38         Make sure shift and rotate instructions have valid immediate operands.
39         * config/spu/predicates.md (spu_shift_operand): Remove.
40         * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
41         * config/spu/constraints.md (W, O): Extend range.
42         * config/spu/spu.md (umask, nmask): Define.
43         (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
44         lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
45         rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
46         rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
47         spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
48         (lshr<mode>3_reg):  Fix rtl description.
49
50         Make sure mulhisi immediate operands are valid.
51         * config/spu/predicates.md (imm_K_operand): Add.
52         * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.
53
54         Generate constants using fsmbi and andi.
55         * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
56         (print_operand, spu_split_immediate, classify_immediate,
57         fsmbi_const_p): Handle IC_FSMBI2.
58
59         Correctly handle a CONST_VECTOR containing symbols.
60         * config/spu/spu.c (print_operand): Handle HIGH correctly.
61         (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
62         (immediate_load_p): Allow symbols that use 2 instructions to create.
63         (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
64         with symbols when flag_pic is set.
65         (const_vector_immediate_p): New.
66         (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
67         accept a CONST_VECTOR with symbols.
68         (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
69         accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
70         correctly.
71         * config/spu/spu.md (high, low): Delete.
72         (low_<mode>): Define.
73
74         Remove INTRmode and INTR_REGNUM, which didn't work.
75         * config/spu/spu.c (spu_conditional_register_usage): Remove reference
76         of INTR_REGNUM.
77         * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
78         set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
79         peephole2 pattern): Don't use INTR or 131.
80         (movintrcc): Delete.
81         * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
82         CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
83         * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
84         (UNSPEC_SET_INTR): Add.
85         * config/spu/spu-modes.def (INTR): Remove.
86
87         More accurate warnings about run-time relocations.
88         * config/spu/spu.c (reloc_diagnostic): Test in_section.
89
90         Correctly warn about immediate arguments to specific intrinsics.
91         * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
92         (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
93         the instruction predicate.
94
95         Fix tree check errors with latest update.
96         * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
97         CALL_EXPR_ARG.
98         (spu_expand_builtin): Use CALL_EXPR_FN.
99
100         Add missing specific intrinsics.
101         * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
102         si_bislede.
103         * config/spu/spu_internals.h: Ditto.
104
105         Fix incorrect operand modifiers.
106         * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
107         * config/spu/spu.md (xor<mode>3):  Change %S to %J.
108
109         Optimize one case of zero_extend of a vec_select.
110         * config/spu/spu.md (_vec_extractv8hi_ze):  Add.
111
112         Accept any immediate for hbr.
113         * config/spu/spu.md (hbr):  Change s constraints to i.
114
115 2007-02-21  Paul Brook  <paul@codesourcery.com>
116
117         * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
118         condexec_count when skipping USE and CLOBBER.
119
120 2007-02-21  Nick Clifton  <nickc@redhat.com>
121
122         * common.opt (Warray-bounds): Add Warning attribute.
123         (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
124         Likewise.
125         (fsized-zeroes): Add Optimization attribute.
126         (fsplit-wide-types, ftree-scev-cprop): Likewise.
127         * c.opt (Wc++0x-compat): Add Warning attribute.
128
129 2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>
130
131         PR middle-end/30761
132         * reload1.c (eliminate_regs_in_insn): In the single_set special
133         case, attempt to re-recognize the insn before falling back to
134         having reload fix it up.
135
136 2007-02-20  Eric Christopher  <echristo@gmail.com>
137
138         * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
139         Rewrite accordingly.
140         (frv_read_iacc_argument): Ditto.
141         (frv_expand_set_builtin): Take a call instead of arglist, update for
142         above changes.
143         (frv_expand_unop_builtin): Ditto.
144         (frv_expand_binop_builtin): Ditto.
145         (frv_expand_cut_builtin): Ditto.
146         (frv_expand_binopimm_builtin): Ditto.
147         (frv_expand_voidbinop_builtin): Ditto.
148         (frv_expand_int_void2arg): Ditto.
149         (frv_expand_prefetches): Ditto.
150         (frv_expand_voidtriop_builtin): Ditto.
151         (frv_expand_voidaccop_builtin): Ditto.
152         (frv_expand_load_builtin): Ditto.
153         (frv_expand_store_builtin): Ditto.
154         (frv_expand_mdpackh_builtin): Ditto.
155         (frv_expand_mclracc_builtin): Ditto.
156         (frv_expand_mrdacc_builtin): Ditto.
157         (frv_expand_mwtacc_builtin): Ditto.
158         (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
159         calls for above.
160
161 2007-02-20  Janis Johnson  <janis187@us.ibm.com>
162
163         * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
164         * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
165         cmpb instruction.
166         (HAVE_GAS_DFP): Check for assembler support of decimal floating
167         point instructions.
168         * configure: Regenerate.
169         * config.in: Regenerate.
170         * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
171         * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
172         masks to power6 and power6x and to POWERPC_MASKS.
173         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
174         _ARCH_PWR6.
175         * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
176         * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
177         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
178         Access PROTOTYPE as variable, not mask.
179
180 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
181
182         * rtl.h (remove_reg_equal_equiv_notes): New prototype.
183         * rtlanal.c (remove_reg_equal_equiv_notes): New function.
184         * combine.c (adjust_for_new_dest): Use it.
185         * postreload.c (reload_combine): Likewise.
186
187 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
188
189         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
190         notes on an insn with multiple sets, even if single_set returns
191         non-NULL for that insn.
192
193 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
194
195         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
196         scalbn and scalbln.
197
198 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
199
200         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
201         if user didn't pass it.
202         * config/i386/darwin.h (CC1_SPEC): Likewise.
203         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
204         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
205         -mmacosx-version-min.
206
207 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
208             Uros Bizjak  <ubizjak@gmail.com>
209
210         * optabs.h (enum optab_index): Add new OTI_scalb.
211         (scalb_optab): Define corresponding macro.
212         * optabs.c (init_optabs): Initialize scalb_optab.
213         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
214         patterns.
215         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
216         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
217         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
218         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
219         flag_unsafe_math_optimizations is set.
220
221         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
222         to implement scalbf, scalb and scalbl built-ins as inline x87
223         intrinsics.
224
225 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
226             DJ Delorie <dj@redhat.com>
227
228         PR other/30824
229         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
230         (diagnostic_report_diagnostic): ... here, and turn them into real
231         errors. If warnings are inhibited, no need to do anything.
232
233 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
234
235         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
236         better code generation.
237
238 2007-02-20  Ben Elliston  <bje@au.ibm.com>
239
240         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
241
242 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
243
244         * config/alpha/alpha.c, config/alpha/alpha.md,
245         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
246         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
247         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
248         config/arm/lib1funcs.asm: Follow spelling conventions.
249
250         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
251         config/fr30/fr30.md, config/i386/i386.h,
252         config/iq2000/iq2000.h, config/iq2000/predicates.md,
253         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
254         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
255         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
256         config/rs6000/altivec.md, config/rs6000/rs6000.c,
257         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
258         config/sparc/sparc.c, config/sparc/sparc.h,
259         config/sparc/sparc.md, config/spu/constraints.md,
260         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
261         conventions.
262
263 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
264
265         PR target/29943
266         * varasm.c (use_blocks_for_decl_p): Return false for decls with
267         alias attribute.
268
269 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
270
271         * doc/invoke.texi (-ftree-lrs): Remove.
272
273 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
274
275         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
276         NULL.
277
278 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
279
280         * config/ia64/ia64.c (ia64_expand_builtin): Use the
281         new CALL_EXPR_FN macro for retrieving the function
282         declaration of the input expression.
283
284 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
285
286         * c.opt (Waddress): New.
287         * common.opt (Walways-true): Delete.
288         (Wstring-literal-comparison): Delete.
289         * doc/invoke.texi (Warning Options): Delete -Walways-true and
290         -Wstring-literal-comparison. Add -Waddress.
291         (Waddress): New.
292         (Walways-true): Delete.
293         (Wstring-literal-comparison): Delete.
294         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
295         consistently instead of -Walways-true in example.
296         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
297         * c-typeck.c (parser_build_binary_op): Replace
298         -Wstring-literal-comparison and -Walways-true with -Waddress.
299         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
300         with -Waddress.
301
302 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
303
304         * tree-cfg.c (dump_function_to_file): Be prepared for functions
305         without DECL_STRUCT_FUNCTION initialized.
306
307 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
308
309         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
310         due to calls to functions taking pointers as parameters.
311
312 2007-02-19  Richard Henderson  <rth@redhat.com>
313
314         PR debug/29558
315         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
316         in memory.
317
318 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
319
320         * config/s390/s390.c (s390_call_saved_register_used,
321         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
322         accessed to the new scheme.
323
324 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
325
326         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
327         (cris_print_index, cris_print_operand, cris_print_operand_address)
328         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
329         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
330         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
331         GET_CODE () == xxx.
332         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
333         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
334         GO_IF_LEGITIMATE_ADDRESS): Ditto.
335         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
336         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
337         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
338         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
339         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
340         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
341         (uminsi3, call, call_value): Ditto.
342         (define_split: indir_to_reg_split, unnamed): Ditto.
343
344 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
345
346         PR tree-optimization/30975
347         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
348         wrong assert.
349
350 2007-02-18  Eric Christopher  <echristo@gmail.com>
351
352         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
353         Remove use of arglist.
354         (mips_expand_builtin): Remove use of arglist, pass in expr.
355         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
356         (mips_expand_builtin_movtf): Ditto.
357         (mips_expand_builtin_compare): Ditto.
358
359 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
360
361         * tree-sra.c (sra_build_assignment): Replace assertion
362         checking with a comment explaining why it can't be done.
363
364 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
365
366         PR middle-end/30833
367         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
368         during CALL_EXPR representation conversion.
369         * tree-ssa-propagate.c (set_rhs): Likewise.
370
371 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
372
373         * tree-sra.c (sra_build_assignment): Disable assertion checking
374         for now.
375
376 2007-02-18  Roger Sayle  <roger@eyesopen.com>
377
378         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
379         instead of calling build2 with a GIMPLE_MODIFY_STMT.
380         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
381         Likewise.
382         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
383         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
384         gimplify_init_ctor_eval_range, gimple_push_cleanup,
385         gimplify_omp_for, gimplify_omp_atomic_pipeline,
386         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
387         force_gimple_operand): Likewise.
388         * ipa-cp.c (constant_val_insert): Likewise.
389         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
390         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
391         perfect_nestify): Likewise.
392         * langhooks.c (lhd_omp_assignment): Likewise.
393         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
394         lower_copyprivate_clauses, lower_send_clauses,
395         lower_send_shared_vars, expand_parallel_call,
396         expand_omp_for_generic, expand_omp_for_static_nochunk,
397         expand_omp_for_static_chunk, expand_omp_sections,
398         lower_omp_single_copy, lower_omp_for_lastprivate,
399         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
400         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
401         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
402         Likewise.
403
404 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
405
406         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
407         config/sh/sh.md: Follow spelling conventions.
408
409         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
410         config/frv/predicates.md: Follow spelling conventions.
411
412         * config/m68k/linux-unwind.h: Fix a comment typo.
413         * target.h: Follow spelling conventions.
414
415 2007-02-18  Roger Sayle  <roger@eyesopen.com>
416
417         PR rtl-optimization/28173
418         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
419         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
420         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
421         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
422         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
423
424 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
425
426         * builtins.c (fold_builtin_load_exponent): New.
427         (fold_builtin_2): Use it.
428
429 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
430
431         PR rtl-optimization/30773
432         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
433         if we fail to attach a REG_EQUIV note.
434
435 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
436             Roger Sayle  <roger@eyesopen.com>
437
438         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
439
440 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
441
442         * calls.c (initialize_argument_information): Pass original EXP
443         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
444         code to split complex arguments here, as part of initializing the
445         ARGS array.
446         (expand_call): Remove code that builds a list of arguments and
447         inserts implicit arguments into it.  Instead, just count how many
448         implicit arguments there will be so we can determine the size of
449         the ARGS array, and let initialize_argument_information do the work.
450         (split_complex_values): Delete unused function.
451
452 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
453
454         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
455
456 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
457
458         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
459         for arg pointer based indexed addressing.
460
461 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
462
463         * config/ia64/ia64.h, config/ia64/ia64.md,
464         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
465         spelling conventions.
466
467 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
468
469         * config/m68k/m68k.c (split_di): New.
470         * config/m68k/m68k-protos.h: Declare split_di.
471         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
472           Improve predicate handling and split constant shifts.
473
474 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
475
476         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
477         parameter for register bitfield operations, general predicates
478         cleanup
479
480 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
481
482         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
483         * config/m68k/linux-unwind.h: New file.
484
485 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
486
487         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
488         config/i386/athlon.md, config/ia64/ia64.md,
489         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
490         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
491         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
492         tree-ssa-loop-niter.c, tree-vect-analyze.c,
493         tree-vect-transform.c: Fix comment typos.
494
495 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
496
497         * sched-deps.c (find_insn_list): Remove.
498         * sched-int.h: Remove the prototype for find_insn_list.
499
500 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
501
502         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
503         to linker.
504         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
505         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
506         darwin_rs6000_override_options.
507         (C_COMMON_OVERRIDE_OPTIONS): Expect
508         darwin_macosx_version_min to be non-NULL always.
509         (TARGET_C99_FUNCTIONS): Likewise.
510         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
511         (DARWIN_MINVERSION_SPEC): New.
512         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
513         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
514         to cc1*.
515         (DARWIN_MINVERSION_SPEC): New.
516         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
517         value.
518         * config/darwin-c.c (darwin_cpp_builtins): Expect
519         darwin_macosx_version_min to be non-NULL always.
520
521         * config/rs6000/rs6000.c: Clean up trailing whitespace.
522
523 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
524
525         * config/i386/i386.h (x86_use_xchgb): New.
526         (TARGET_USE_XCHGB): New macro.
527         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
528         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
529         Split after reload into bswaphi for shifts of 8.
530         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
531         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
532         or when optimizing for size.
533
534 2007-02-16  Richard Guenther  <rguenther@suse.de>
535             Christian Bruel  <christian.bruel@st.com>
536
537         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
538         DECLs but prefer SSA_NAMEs over DECLs.
539
540 2007-02-16  Richard Guenther  <rguenther@suse.de>
541
542         * tree-flow-inline.h (single_imm_use_p): Remove.
543         (zero_imm_uses_p): Likewise.
544         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
545         instead of single_imm_use_p.
546         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
547         zero_imm_uses_p.
548
549 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
550
551         PR other/27843
552         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
553         nested double- and backquotes.
554
555 2007-02-15  Roger Sayle  <roger@eyesopen.com>
556
557         PR middle-end/30391
558         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
559         should be unreachable.
560         (build2_stat): Allow construction of MODIFY_EXPR at any time.
561         For the time being redirect GIMPLE_MODIFY_STMT to the new
562         (renamed) build_gimple_modify_stmt_stat.
563         (build2_gimple_stat): Rename to...
564         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
565         Always build a GIMPLE_MODIFY_STMT node.
566         * tree.h (build2_gimple, build2_gimple_stat): Delete.
567         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
568         declarations.
569
570         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
571         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
572         * tree-complex.c (set_component_ssa_name, expand_complex_move,
573         expand_complex_div_wide): Likewise.
574         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
575         * tree-ssa-loop-im.c (schedule_sm): Likewise.
576         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
577         * tree-ssa-loop-manip.c (create_iv): Likewise.
578         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
579         abs_replacement): Likewise.
580         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
581         realify_fake_stores): Likewise.
582
583         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
584         node rather than a GIMPLE_MODIFY_STMT node.
585         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
586         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
587         Likewise.
588         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
589         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
590         GIMPLE_MODIFY_STMT.
591
592 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
593
594         PR middle-end/30433
595         * fold-const.c (fold_comparison): Add back the
596         folding of constant complex comparisions.
597
598 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
599
600         PR middle-end/30729
601         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
602         effects unknown to this function, return early.
603
604 2007-02-15  Ian Lance Taylor  <iant@google.com>
605
606         * lower-subreg.c (move_eh_region_note): New static function.
607         (resolve_simple_move): Call it.
608         (decompose_multiword_subregs): Track blocks for which we resolve a
609         simple move which is also a control flow insn.  Pass them to
610         find_many_sub_basic_blocks.
611         (pass_lower_subreg): Add TODO_verify_flow.
612         (pass_lower_subreg2): Likewise.
613
614 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
615             Brooks Moses  <brooks.moses@codesourcery.com>
616             Lee Millward  <lee.millward@codesourcery.com>
617
618         * tree.h (enum tree_code_class): Add tcc_vl_exp.
619         (VL_EXP_CLASS_P): New.
620         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
621         TREE_CODE_LENGTH.
622         (TREE_OPERAND_CHECK_CODE): Likewise.
623         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
624         (TREE_RTL_OPERAND_CHECK): Likewise.
625         (tree_operand_check_failed): Make second parameter the whole tree
626         instead of its code.  Fixed callers.
627         (VL_EXP_CHECK): New.
628         (TREE_OPERAND_LENGTH): New.
629         (VL_EXP_OPERAND_LENGTH): New.
630         (CALL_EXPR_FN): New.
631         (CALL_EXPR_STATIC_CHAIN): New.
632         (CALL_EXPR_ARGS): New.
633         (CALL_EXPR_ARG): New.
634         (call_expr_nargs): New.
635         (CALL_EXPR_ARGP): New.
636         (build_nt_call_list): Declare.
637         (build_vl_exp_stat): Declare.
638         (build_vl_exp): New.
639         (build_call_list): Declare.
640         (build_call_nary): Declare.
641         (build_call_valist): Declare.
642         (build_call_array): Declare.
643         (call_expr_arg): Declare.
644         (call_expr_argp): Declare.
645         (call_expr_arglist): Declare.
646         (fold_build_call_list): Declare.
647         (fold_build_call_list_initializer): Declare.
648         (fold_call_expr): Declare to replace fold_builtin.
649         (fold_builtin_fputs): Update to agree with modified definition.
650         (fold_builtin_strcpy): Likewise.
651         (fold_builtin_strncpy): Likewise.
652         (fold_builtin_memory_chk): Likewise.
653         (fold_builtin_stxcpy_chk): Likewise.
654         (fold_builtin_strncpy_chk): Likewise.
655         (fold_builtin_next_arg): Likewise.
656         (fold_build_call_expr): Declare.
657         (fold_builtin_call_list): Declare.
658         (fold_builtin_call_valist): Declare.
659         (build_call_expr): Declare.
660         (validate_arglist): Update to agree with modified definition.
661         (tree_operand_length): New.
662         (call_expr_arg_iterator): New.
663         (init_call_expr_arg_iterator): New.
664         (next_call_expr_arg): New.
665         (first_call_expr_arg): New.
666         (more_call_expr_args_p): New.
667         (FOR_EACH_CALL_EXPR_ARG): New.
668
669         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
670         and tcc_gimple_stmt.
671         (tree_code_size): Update documentation.  Use sizeof (tree) rather
672         than sizeof (char *).
673         (tree_size): Likewise.  Add case for tcc_vl_exp.
674         (tree_node_structure): Add case for tcc_vl_exp.
675         (contains_placeholder_p): Likewise.
676         (substitute_in_expr): Likewise.
677         (substitute_placeholder_in_expr): Likewise.
678         (stabilize_reference_1): Likewise.
679         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
680         to diagnose breakage of this interface for constructing CALL_EXPRs.
681         (build_nt): Add similar assertion here.
682         (build_nt_call_list): New.
683         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
684         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
685         TREE_CODE_LENGTH.
686         (get_callee_fndecl): Use new CALL_EXPR accessors.
687         (tree_operand_check_failed): Change parameters to pass entire node
688         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
689         (process_call_operands): New.
690         (build_vl_exp_stat): New.
691         (build_call_list): New.
692         (build_call_nary): New.
693         (build_call_valist): New.
694         (build_call_array): New.
695         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
696         (call_expr_arglist): New.
697
698         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
699         tcc_vl_exp instead of a fixed-size tcc_expression.
700
701         * doc/c-tree.texi (CALL_EXPR): Document new representation and
702         accessors for CALL_EXPRs.
703         (AGGR_INIT_EXPR): Likewise.
704
705 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
706             Brooks Moses  <brooks.moses@codesourcery.com>
707             Lee Millward  <lee.millward@codesourcery.com>
708
709         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
710         (expand_builtin_nonlocal_goto): Change parameter to be entire
711         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
712         (expand_builtin_prefetch): Likewise.
713         (expand_builtin_classify_type): Likewise.
714         (mathfn_built_in): Return NULL_TREE instead of 0.
715         (expand_errno_check): Use new CALL_EXPR accessors.
716         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
717         Return NULL_RTX instead of 0.
718         (expand_builtin_mathfn_2): Likewise.
719         (expand_builtin_mathfn_3): Likewise.
720         (expand_builtin_interclass_mathfn): Likewise.
721         (expand_builtin_sincos): Likewise.
722         (expand_builtin_cexpi): Likewise.
723         (expand_builtin_int_roundingfn): Likewise.
724         (expand_builtin_int_roundingfn_2): Likewise.
725         (expand_builtin_pow): Likewise.
726         (expand_builtin_powi): Likewise.
727         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
728         of arglist, fixing callers appropriately.  Use new CALL_EXPR
729         accessors and constructors.  Return NULL_RTX instead of 0.
730         (expand_builtin_strstr): Likewise.
731         (expand_builtin_strchr): Likewise.
732         (expand_builtin_strrchr): Likewise.
733         (expand_builtin_strpbrk): Likewise.
734         (expand_builtin_memcpy): Likewise.
735         (expand_builtin_mempcpy): Likewise.
736         (expand_builtin_mempcpy_args): New.
737         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
738         (expand_builtin_memmove_args): New.
739         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
740         (expand_movstr): Likewise.
741         (expand_builtin_strcpy): Likewise.
742         (expand_builtin_strcpy_args): New.
743         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
744         (expand_builtin_strncpy): Likewise.
745         (expand_builtin_memset): Likewise.
746         (expand_builtin_memset_args): New.
747         (expand_builtin_bzero): Similarly to expand_builtin_memset.
748         (expand_builtin_memcmp): Likewise.
749         (expand_builtin_strcmp): Likewise.
750         (expand_builtin_strncmp): Likewise.
751         (expand_builtin_strcat): Likewise.
752         (expand_builtin_strncat): Likewise.
753         (expand_builtin_strspn): Likewise.
754         (expand_builtin_strcspn): Likewise.
755         (expand_builtin_args_info): Likewise.
756         (expand_builtin_va_start): Likewise.
757         (gimplify_va_arg_expr): Likewise.
758         (expand_builtin_va_end): Likewise.
759         (expand_builtin_va_copy): Likewise.
760         (expand_builtin_frame_address): Likewise.
761         (expand_builtin_alloca): Likewise.
762         (expand_builtin_bswap): Likewise.
763         (expand_builtin_unop): Likewise.
764         (expand_builtin_fputs): Likewise.
765         (expand_builtin_expect): Likewise.
766         (expand_builtin_fabs): Likewise.
767         (expand_builtin_copysign): Likewise.
768         (expand_builtin_printf): Likewise.
769         (expand_builtin_fprintf): Likewise.
770         (expand_builtin_sprintf): Likewise.
771         (expand_builtin_init_trampoline): Likewise.
772         (expand_builtin_signbit): Likewise.
773         (expand_builtin_fork_or_exec): Likewise.
774         (expand_builtin_sync_operation): Likewise.
775         (expand_builtin_compare_and_swap): Likewise.
776         (expand_builtin_lock_test_and_set): Likewise.
777         (expand_builtin_lock_release): Likewise.
778         (expand_builtin): Likewise.
779         (builtin_mathfn_code): Likewise.
780
781         (fold_builtin_constant_p): Pass call arguments individually instead
782         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
783         accessors and constructors.  Return NULL_TREE instead of 0.
784         (fold_builtin_expect): Likewise.
785         (fold_builtin_classify_type): Likewise.
786         (fold_builtin_strlen): Likewise.
787         (fold_builtin_nan): Likewise.
788         (integer_valued_real_p): Likewise.
789         (fold_trunc_transparent_mathfn): Likewise.
790         (fold_fixed_mathfn): Likewise.
791         (fold_builtin_cabs): Likewise.
792         (fold_builtin_sqrt): Likewise.
793         (fold_builtin_cbrt): Likewise.
794         (fold_builtin_cos): Likewise.
795         (fold_builtin_cosh): Likewise.
796         (fold_builtin_tan): Likewise.
797         (fold_builtin_sincos): Likewise.
798         (fold_builtin_cexp): Likewise.
799         (fold_builtin_trunc): Likewise.
800         (fold_builtin_floor): Likewise.
801         (fold_builtin_ceil): Likewise.
802         (fold_builtin_round): Likewise.
803         (fold_builtin_int_roundingfn): Likewise.
804         (fold_builtin_bitop): Likewise.
805         (fold_builtin_bswap): Likewise.
806         (fold_builtin_logarithm): Likewise.
807         (fold_builtin_hypot): Likewise.
808         (fold_builtin_pow): Likewise.
809         (fold_builtin_powi): Likewise.
810         (fold_builtin_exponent): Likewise.
811         (fold_builtin_memset): Likewise.
812         (fold_builtin_bzero): Likewise.
813         (fold_builtin_memory_op): Likewise.
814         (fold_builtin_bcopy): Deleted; call site changed to invoke
815         fold_builtin_memory_op directly.
816         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
817         (fold_builtin_strncpy): Likewise.
818         (fold_builtin_memcmp): Likewise.
819         (fold_builtin_strcmp): Likewise.
820         (fold_builtin_strncmp): Likewise.
821         (fold_builtin_signbit): Likewise.
822         (fold_builtin_copysign): Likewise.
823         (fold_builtin_isascii): Likewise.
824         (fold_builtin_toascii): Likewise.
825         (fold_builtin_isdigit): Likewise.
826         (fold_builtin_fabs): Likewise.
827         (fold_builtin_abs): Likewise.
828         (fold_builtin_fmin_fmax): Likewise.
829         (fold_builtin_carg): Likewise.
830         (fold_builtin_classify): Likewise.
831         (fold_builtin_unordered_cmp): Likewise.
832
833         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
834         New functions split out from fold_builtin_1.
835         (fold_builtin_n): New.
836         (fold_builtin_varargs): New.
837         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
838         instead.
839         (fold_call_expr): New.
840         (build_function_call_expr): Rewrite to use new helper function.
841         (fold_builtin_call_list): New.
842         (build_call_expr): New.
843         (fold_builtin_call_valist): New.
844         (rewrite_call_expr): New.
845         (validate_arg): New.
846         (validate_arglist): Change parameter to be entire CALL_EXPR instead
847         of an arglist.  Change return type to bool.  Use new CALL_EXPR
848         accessors.
849
850         (fold_builtin_strstr):  Pass call arguments individually instead
851         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
852         accessors and constructors.  Return NULL_TREE instead of 0.
853         (fold_builtin_strchr): Likewise.
854         (fold_builtin_strrchr): Likewise.
855         (fold_builtin_strpbrk): Likewise.
856         (fold_builtin_strcat): Likewise.
857         (fold_builtin_strncat): Likewise.
858         (fold_builtin_strspn): Likewise.
859         (fold_builtin_strcspn): Likewise.
860         (fold_builtin_fputs): Likewise.
861         (fold_builtin_next_arg): Likewise.
862         (fold_builtin_sprintf): Likewise.
863
864         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
865         NULL_RTX instead of 0.
866         (expand_builtin_memory_chk): Likewise.
867         (maybe_emit_chk_warning): Likewise.
868         (maybe_emit_sprintf_chk_warning): Likewise.
869
870         (fold_builtin_object_size): Pass call arguments individually instead
871         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
872         accessors and constructors.  Return NULL_TREE instead of 0.
873         (fold_builtin_memory_chk): Likewise.
874         (fold_builtin_stxcpy_chk): Likewise.
875         (fold_builtin_strncpy_chk): Likewise.
876         (fold_builtin_strcat_chk): Likewise.
877         (fold_builtin_strcat_chk): Likewise.
878         (fold_builtin_strncat_chk): Likewise.
879         (fold_builtin_sprintf_chk): Likewise.
880         (fold_builtin_snprintf_chk): Likewise.
881         (fold_builtin_printf): Likewise.
882         (fold_builtin_vprintf): Likewise.
883
884         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
885         constructors.
886         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
887         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
888         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
889         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
890         (fold_unary): Likewise.
891         (fold_binary): Likewise.
892         (fold_ternary): Remove CALL_EXPR case, since they are no longer
893         ternary expressions.
894         (fold): Add logic for tcc_vl_exp.
895         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
896         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
897         (fold_build3_stat): Add assertion to flag broken interface for
898         constructing CALL_EXPRs.
899         (fold_build_call_list): New.
900         (fold_build_call_list_initializer): New.
901         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
902         constructors.
903         (fold_strip_sign_ops): Likewise.
904
905 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
906             Brooks Moses  <brooks.moses@codesourcery.com>
907             Lee Millward  <lee.millward@codesourcery.com>
908
909         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
910         accessors and dump arguments explicitly.
911
912         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
913         TREE_CODE_LENGTH.
914         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
915         explicitly.
916         (print_call_name): Use new CALL_EXPR accessors.
917
918         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
919         CALL_EXPR arguments explicitly instead of as a list.  Use
920         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
921
922         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
923         (vrp_visit_stmt): Likewise.
924
925         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
926         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
927         TREE_CODE_LENGTH.
928         (force_move_till_expr): Likewise.
929
930         * targhooks.c (default_external_stack_protect_fail): Use
931         build_call_expr instead of build_function_call_expr.
932         (default_hidden_stack_protect_fail): Likewise.
933
934         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
935         build the call.
936
937         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
938         and walk arguments explicitly.
939
940         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
941         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
942         (expand_simple_operations): Likewise.
943         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
944
945         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
946         of TREE_CODE_LENGTH.
947         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
948
949         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
950         instead of TREE_CODE_LENGTH.
951
952         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
953         (tree_ic_transform): Likewise.
954         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
955         parameter instead of arglist.  Fix callers.
956         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
957         (tree_stringops_transform): Likewise.
958         (tree_indirect_call_to_profile): Likewise.
959         (tree_stringops_values_to_profile): Likewise.
960
961         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
962         (eliminate_tail_call): Likewise.
963
964         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
965
966         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
967         Use TREE_OPERAND_LENGTH and generalize to handle any number of
968         operands.
969         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
970
971         * omp-low.c (build_omp_barrier): Use build_call_expr.
972         (lower_rec_input_clauses): Likewise.
973         (lower_reduction_clauses): Likewise.
974         (expand_parallel_call): Likewise.
975         (maybe_catch_exception): Likewise.
976         (expand_omp_for_generic): Likewise.
977         (expand_omp_for_static_nochunk): Likewise.
978         (expand_omp_sections): Likewise.
979         (lower_omp_single_simple): Likewise.
980         (lower_omp_single_copy): Likewise.
981         (lower_omp_master): Likewise.
982         (lower_omp_ordered): Likewise.
983         (lower_omp_critical): Likewise.
984
985         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
986         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
987
988         * tree-gimple.c (is_gimple_call_addr): Fix doc.
989         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
990         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
991
992         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
993         and generalize to handle any number of operands.
994         (chrec_contains_undetermined): Likewise.
995         (tree_contains_chrecs): Likewise.
996         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
997
998         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
999
1000         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
1001         fold_call_expr instead of fold_builtin.
1002         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
1003         match declarations there.
1004         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
1005         updates.
1006
1007         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
1008         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1009
1010         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
1011         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
1012
1013         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
1014         accessors.
1015
1016         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
1017         (execute_cse_sincos): Use new CALL_EXPR accessors.
1018
1019         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
1020
1021         * gimple-low.c (lower_function_body): Use build_call_expr.
1022         (lower_builtin_setjmp): Likewise.
1023
1024         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
1025         (set_storage_via_libcall): Likewise.
1026         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
1027         instead of TREE_CODE_LENGTH.
1028         (expand_expr_real_1): Use new CALL_EXPR accessors.
1029
1030         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
1031         generalize to handle any number of operands.
1032         (TB_parent_eq): Likewise.
1033
1034         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
1035         (strip_builtin_expect): Likewise.
1036
1037         * function.c (gimplify_parameters): Use build_call_expr.
1038
1039         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
1040         instead of TREE_CODE_LENGTH.
1041
1042         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
1043         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
1044
1045         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
1046         iterators.
1047
1048         * gimplify.c (build_stack_save_restore): Use build_call_expr.
1049         (gimplify_decl_expr): Likewise.
1050         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
1051         Use new CALL_EXPR iterators.
1052         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
1053         (gimplify_modify_expr_to_memset): Likewise.
1054         (gimplify_variable_sized_compare): Likewise.
1055         (gimplify_omp_atomic_fetch_op): Likewise.
1056         (gimplify_omp_atomic_pipeline): Likewise.
1057         (gimplify_omp_atomic_mutex): Likewise.
1058         (gimplify_function_tree): Likewise.
1059
1060         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
1061         (call_expr_flags): Likewise.
1062         (expand_call): Likewise.
1063
1064         * except.c (expand_builtin_eh_return_data_regno): Pass entire
1065         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
1066         accessors.
1067
1068         * coverage.c (create_coverage): Use build_call_expr.
1069
1070         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
1071         (temp_call_expr_obstack): New.
1072         (pool_copy_list): Delete.
1073         (temp_copy_call_expr): New.
1074         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
1075         CALL_EXPR accessors.  Get rid of special goo for copying argument
1076         lists and use temp_copy_call_expr instead.
1077         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
1078         CALL_EXPR accessors.
1079         (create_expression_by_pieces): Likewise.  Use build_call_array
1080         to construct the result instead of fold_build3.
1081         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
1082         dealing with argument lists.
1083         (init_pre): Remove references to expression_node_pool and
1084         list_node_pool.  Init temp_call_expr_obstack instead.
1085         (fini_pre): Remove references to expression_node_pool and
1086         list_node_pool.
1087
1088         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
1089         and walk arguments explicitly instead of as a list.
1090
1091         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
1092         (mx_register_decls): Likewise.
1093         (mudflap_register_call): Likewise.
1094         (mudflap_finish_file): Likewise.
1095
1096         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
1097         (ipa_callsite_compute_param): Likewise.
1098
1099         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
1100         accessors and constructor.
1101
1102         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
1103         accessors and constructor.
1104         (convert_tramp_reference): Likewise.
1105         (convert_call_expr): Likewise.
1106         (finalize_nesting_tree_1): Likewise.
1107
1108         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
1109         accessors.
1110
1111         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
1112
1113         * tree-inline.c (initialize_inlined_parameters): Pass entire
1114         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
1115         accessors.
1116         (estimate_num_insns_1): Use new CALL_EXPR accessors.
1117         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
1118
1119         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
1120         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1121         (vectorizable_reduction): Likewise.
1122         (vectorizable_call): Use new CALL_EXPR iterators.
1123         (vectorizable_conversion): Use build_call_expr.
1124         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
1125         (vect_gen_widened_results_half): Use build_call_expr.
1126         (vect_setup_realignment): Likewise.
1127         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
1128
1129         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
1130         (pass_through_call): Likewise.
1131         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
1132         fold_builtin.
1133
1134         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
1135         (tree_gen_pow2_profiler): Likewise.
1136         (tree_gen_one_value_profiler): Likewise.
1137         (tree_gen_ic_func_profiler): Likewise.
1138         (tree_gen_average_profiler): Likewise.
1139         (tree_gen_ior_profiler): Likewise.
1140
1141         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
1142         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
1143         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1144
1145         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
1146         of TREE_CODE_LENGTH.
1147
1148         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
1149         of TREE_CODE_LENGTH.
1150
1151         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
1152         constructor.
1153         (convert_to_integer): Likewise.
1154
1155         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
1156         accessors.
1157
1158 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1159             Brooks Moses  <brooks.moses@codesourcery.com>
1160             Lee Millward  <lee.millward@codesourcery.com>
1161
1162         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
1163         accessors.
1164         * config/frv/frv.c (frv_expand_builtin): Likewise.
1165         * config/s390/s390.c (s390_expand_builtin): Likewise.
1166
1167         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
1168         (sparc_expand_builtin): Use new CALL_EXPR accessors.
1169
1170         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
1171         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
1172         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
1173         (ix86_expand_store_builtin): Likewise.
1174         (ix86_expand_unop_builtin): Likewise.
1175         (ix86_expand_unop1_builtin): Likewise.
1176         (ix86_expand_sse_compare): Likewise.
1177         (ix86_expand_sse_comi): Likewise.
1178         (ix86_expand_vec_init_builtin): Likewise.
1179         (ix86_expand_vec_ext_builtin): Likewise.
1180         (ix86_expand_vec_set_builtin): Likewise.
1181         (ix86_expand_builtin): Use new CALL_EXPR accessors.
1182
1183         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
1184         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
1185
1186         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
1187         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1188         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
1189
1190         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
1191         build_call_expr.
1192         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
1193         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
1194         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1195         (altivec_expand_abs_builtin): Likewise.
1196         (rs6000_expand_binop_builtin): Likewise.
1197         (altivec_expand_predicate_builtin): Likewise.
1198         (altivec_expand_lv_builtin): Likewise.
1199         (spe_expand_stv_builtin): Likewise.
1200         (altivec_expand_stv_builtin): Likewise.
1201         (rs6000_expand_ternop_builtin): Likewise.
1202         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
1203         (altivec_expand_st_builtin): Likewise.
1204         (altivec_expand_dst_builtin): Likewise.
1205         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
1206         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1207         (altivec_expand_vec_set_builtin): Likewise.
1208         (altivec_expand_vec_ext_builtin): Likewise.
1209         (altivec_expand_builtin): Use new CALL_EXPR accessors.
1210         (spe_expand_builtin): Likewise.
1211         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
1212         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1213         (spe_expand_evsel_builtin): Likewise.
1214         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
1215         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
1216
1217         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
1218         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1219         (arm_expand_unop_builtin): Likewise.
1220         (arm_expand_builtin): Use new CALL_EXPR accessors.
1221
1222         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
1223         accessors.
1224
1225         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
1226         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1227         (bfin_expand_unop_builtin): Likewise.
1228         (bfin_expand_builtin): Use new CALL_EXPR accessors.
1229
1230 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1231             Brooks Moses  <brooks.moses@codesourcery.com>
1232             Lee Millward  <lee.millward@codesourcery.com>
1233
1234         * c-semantics.c (build_stmt): Add internal diagnostic check.
1235
1236         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
1237         accessors.  Print arguments explicitly instead of as a list.
1238
1239         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
1240
1241         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
1242         (c_finish_omp_flish): Likewise.
1243
1244         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
1245         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
1246         instead of TREE_CODE_LENGTH.
1247         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
1248         (c_warn_unused_result): Likewise.
1249
1250 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1251
1252         PR c/26494
1253         * doc/invoke.texi (Warning Options): Remove
1254         -Werror-implicit-function-declaration.
1255         (Wimplicit-function-declaration): Update description.
1256         * opts.c (common_handle_option): Move handling of -Werror=* to...
1257         (enable_warning_as_error): ...here.
1258         * opts.h (enable_warning_as_error): Declare.
1259         * c-decl.c (implicit_decl_warning): Unless
1260         -Wno-implicit-function-declaration is given, emit a pedwarn if
1261         -std=c99 or emit a warning if -Wimplicit-function-declaration.
1262         * c.opt (Wimplicit-function-declaration): Replace
1263         mesg_implicit_function_declaration with
1264         warn_implicit_function_declaration.
1265         * c-opts.c (c_common_handle_option):
1266         -Werror-implicit-function-declaration is exactly equal as
1267         -Werror=implicit-function-declaration.
1268         (set_Wimplicit): Replace mesg_implicit_function_declaration with
1269         warn_implicit_function_declaration.
1270         (c_common_post_options): -Wimplict-function-declaration is enabled
1271         by default by -std=c99, otherwise is disabled by default.
1272         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
1273
1274 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1275
1276         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
1277         DECL on the rhs to a DECL on the lhs for debug info purposes if the
1278         former is ignored but not the latter.
1279
1280 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1281
1282         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
1283         is made and the reference doesn't use the alias set of its type,
1284         do not create the temporary using that type.
1285
1286 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
1287
1288         * jump.c: Remove prototypes for delete_computation and
1289         delete_prior_computation.
1290
1291 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1292
1293         * jump.c (get_label_after): Delete.
1294         (get_label_before, delete_computation, delete_jump,
1295         delete_prior_computation, follow_jumps): Move...
1296         * reorg.c (delete_computation, delete_prior_computation): ... here...
1297         (get_label_before, delete_jump): ... making these static ...
1298         (follow_jumps): ... and simplifying this since it only runs after
1299         reload.
1300         * rtl.h (get_label_after, get_label_before, delete_jump,
1301         follow_jumps): Delete prototypes.
1302
1303 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1304
1305         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1306
1307 2007-02-15  Nick Clifton  <nickc@redhat.com>
1308
1309         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
1310         order to prevent it from being munged by the target.
1311
1312 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
1313
1314         * config/i386/i386.md: Remove misleading comment.
1315
1316 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1317
1318         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
1319         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
1320         invalid patterns.
1321
1322 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1323
1324         * tree-sra.c (instantiate_missing_elements): Canonicalize
1325         bit-field types.
1326         (sra_build_assignment): New.
1327         (generate_copy_inout, generate_element_copy,
1328         generate_element_zero, generate_one_element_init): Use it.
1329
1330 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1331
1332         * tree-sra.c (instantiate_missing_elements): Canonicalize
1333         bit-field types.
1334         (sra_build_assignment): New.
1335         (generate_copy_inout, generate_element_copy,
1336         generate_element_zero, generate_one_element_init): Use it.
1337
1338 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1339
1340         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
1341         limbo die nodes.
1342
1343 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
1344
1345         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
1346         types as aggregates not scalars.
1347         * function.c (assign_stack_temp_for_type): Likewise.
1348
1349 2007-02-14  Roger Sayle  <roger@eyesopen.com>
1350             Zdenek Dvorak  <dvorakz@suse.cz>
1351
1352         * tree-dump.c (dump_switch_p_1): Require exact match of the option
1353         name.
1354
1355 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
1356
1357         * passes.c (next_pass_1): Clear the next field of the copied
1358         pass structure.
1359
1360 2007-02-14  Richard Henderson  <rth@redhat.com>
1361
1362         * tree-sra.c (early_sra): New.
1363         (decl_can_be_decomposed_p): Deny va_list if early_sra.
1364         (tree_sra_early, pass_sra_early): New.
1365         * tree-pass.h (pass_sra_early): Declare.
1366         * passes.c (init_optimization_passes): Use it.
1367
1368 2007-02-14  Richard Guenther  <rguenther@suse.de>
1369
1370         * flags.h (issue_strict_overflow_warning): Convert to a macro.
1371
1372 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
1373
1374          PR tree-optimization/30771
1375         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
1376         also phi nodes.
1377         (vect_analyze_operations): Induction phis can now be marked as
1378         used_in_loop.
1379         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
1380         Update documentation accordingly.
1381
1382 2007-02-14  Nick Clifton  <nickc@redhat.com>
1383
1384         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
1385         most 3 arguments are supported.
1386         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
1387
1388 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
1389
1390         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1391         Ensure dst->current is valid.
1392
1393 2007-02-13  Paul Brook  <paul@codesourcery.com>
1394
1395         * config.gcc: Add arm*-*-uclinux-*eabi.
1396         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
1397         (SUBTARGET_EXTRA_LINK_SPEC): Define.
1398         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
1399         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
1400         (LINK_SPEC): Define.
1401         (LIB_SPEC): Define.
1402         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
1403         register.
1404         * config/arm/uclinux-eabi.h: New file.
1405         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
1406         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
1407         based targets.
1408
1409 2007-02-13  Ian Lance Taylor  <iant@google.com>
1410
1411         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
1412         * flags.h (warn_strict_overflow): Declare.
1413         (enum warn_strict_overflow_code): Define.
1414         (issue_strict_overflow_warning): New static inline function.
1415         * opts.c (warn_strict_overflow): New variable.
1416         (common_handle_option): Handle OPT_Wstrict_overflow and
1417         OPT_Wstrict_overflow_.
1418         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
1419         OPT_Wall.
1420         * fold-const.c: Include intl.h.
1421         (fold_deferring_overflow_warnings): New static variable.
1422         (fold_deferred_overflow_warning): New static variable.
1423         (fold_deferred_overflow_code): New static variable.
1424         (fold_defer_overflow_warnings): New function.
1425         (fold_undefer_overflow_warnings): New function.
1426         (fold_undefer_and_ignore_overflow_warnings): New function.
1427         (fold_deferring_overflow_warnings_p): New function.
1428         (fold_overflow_warning): New static function.
1429         (make_range): Add strict_overflow_p parameter.  Change all
1430         callers.
1431         (extract_muldiv, extract_muldiv_1): Likewise.
1432         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
1433         tree_expr_nonnegative_p.
1434         (fold_negate_expr): Call fold_overflow_warning.
1435         (fold_range_test): Likewise.
1436         (fold_comparison): Likewise.
1437         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
1438         instead of tree_expr_nonnegative_p.
1439         (tree_expr_nonnegative_warnv_p): Rename from
1440         tree_expr_nonnegative_p, add strict_overflow_p parameter.
1441         (tree_expr_nonnegative_p): New function.
1442         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
1443         strict_overflow_p parameter.
1444         (tree_expr_nonzero_p): New function.
1445         * passes.c (verify_interpass_invariants): New static function.
1446         (execute_one_pass): Call it.
1447         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
1448         warnings.
1449         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
1450         (estimate_numbers_of_iterations): Likewise.
1451         (scev_probably_wraps_p): Likewise.
1452         * tree-ssa-ccp.c: Include "toplev.h".
1453         (evaluate_stmt): Defer fold overflow warnings until we know we are
1454         going to optimize.
1455         (struct fold_stmt_r_data): Add stmt field.
1456         (fold_stmt_r): Defer fold overflow warnings until we know we
1457         optimized.
1458         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
1459         (fold_stmt_inplace): Likewise.
1460         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
1461         (cleanup_control_expr_graph): Defer fold overflow warnings until
1462         we know we are going to optimize.
1463         * tree-cfg.c (fold_cond_expr_cond): Likewise.
1464         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
1465         Likewise.
1466         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
1467         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
1468         * tree-ssa-loop-manip.c (create_iv): Likewise.
1469         * c-typeck.c (build_conditional_expr): Likewise.
1470         (build_binary_op): Likewise.
1471         * tree-vrp.c (vrp_expr_computes_nonzero): Call
1472         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
1473         (extract_range_from_unary_expr): Likewise.
1474         * simplify-rtx.c (simplify_const_relational_operation): Warn when
1475         assuming that signed overflow does not occur.
1476         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
1477         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
1478         (fold_defer_overflow_warnings): Declare.
1479         (fold_undefer_overflow_warnings): Declare.
1480         (fold_undefer_and_ignore_overflow_warnings): Declare.
1481         (fold_deferring_overflow_warnings_p): Declare.
1482         (tree_expr_nonzero_warnv_p): Declare.
1483         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
1484         of warning options.
1485         (Warning Options): Document -Wstrict-overflow.
1486         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
1487         (tree-ssa-ccp.o): Likewise.
1488         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
1489         (fold-const.o): Depend on intl.h.
1490
1491 2007-02-13  Ian Lance Taylor  <iant@google.com>
1492
1493         PR middle-end/30751
1494         * lower-subreg.c (resolve_simple_move): Decompose subregs in
1495         addresses.
1496
1497 2007-02-13  Stuart Hastings  <stuart@apple.com>
1498
1499         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
1500
1501 2007-02-13  Richard Henderson  <rth@redhat.com>
1502
1503         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
1504         handled_component_p before looking for the indirect_ref.
1505
1506 2007-02-13  Richard Henderson  <rth@redhat.com>
1507
1508         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
1509         remove flags clobber.
1510         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
1511         (bswaphi_lowpart): New.
1512         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
1513         remove TARGET_BSWAP test.  Delete expander of the same name.
1514
1515         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
1516         (expand_unop): Use them.
1517
1518 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
1519
1520         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
1521         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
1522         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
1523         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
1524         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
1525         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
1526         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
1527         assembler dialect choice from asm templates.
1528
1529 2007-02-12  Richard Henderson  <rth@redhat.com>
1530
1531         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
1532         (fixuns_trunc<SSEMODEF>si2): Use it.
1533         * config/i386/sse.md (vec_setv4sf_0): Export.
1534         * config/i386/i386.c (ix86_build_const_vector): Export.
1535         (ix86_split_convert_uns_si_sse): Rename from
1536         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
1537         * config/i386/i386-protos.h: Update.
1538
1539 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1540
1541         PR c/29521
1542         * c-typeck.c (c_finish_return): Improve warning message.
1543
1544 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1545
1546         * alias.c (find_symbolic_term): Delete unused function.
1547
1548 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
1549
1550         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
1551         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
1552         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
1553
1554 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1555
1556         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
1557         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
1558         the function, temporarily point the debug interface to the null one.
1559
1560 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1561
1562         * dwarf2out.c (round_up_to_align): New static function.
1563         (field_byte_offset): Use it to round the offset.
1564
1565 2007-02-12  Richard Henderson  <rth@redhat.com>
1566
1567         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
1568         (inswl_const): Export.
1569
1570 2007-02-12  Richard Henderson  <rth@redhat.com>
1571
1572         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
1573         result mode of the libcall, convert back to outmode.
1574
1575 2007-02-12  Roger Sayle  <roger@eyesopen.com>
1576
1577         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
1578         (bswapdi2): New define_expand to implement 32-bit implementation.
1579
1580 2007-02-12  Nick Clifton  <nickc@redhat.com>
1581
1582         * doc/invoke.texi (Overall Options): Document --help=.
1583         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
1584         (cc1_options): Pass --help= on to cc1.
1585         (display_help): Add description of --help=.
1586         (process_command): Add code to handle --help=.  Allow translated
1587         --help and --target-help switches to be passed on to compiler
1588         sub-process.
1589         (main): Remove unused if statement.
1590         * opts.c (columns): Remove.
1591         (LEFT_COLUMN): Define.
1592         (wrap_help): Add columns argument.
1593         (print_filtered_help): Change parameters to be an include bitmask,
1594         an exclude bitmask, an any bitmask and the column width.  Move the
1595         code to display the params list here.  Add code to display the
1596         status of options rather than their descriptions if the quiet flag
1597         is not active.
1598         (print_specific_help): Change parameters to be an include bitmask,
1599         an exclude bitmask and an any bitmask.  Move code to look up the
1600         column width here.  Decide upon the title for an options listing.
1601         (common_handle_options): Add code to handle --help=.  Adapt code
1602         for --help and --target-help to use the revised form of the
1603         print_specific_help function.
1604         (print_help): Delete.
1605         (print_param_help): Delete.
1606         (print_switch): Delete.
1607         * opts.h (cl_lang_count): Add prototype.
1608         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
1609         CL_MAX_OPTION_CLASS): New defines.
1610         * optc-gen.awk: Add construction of cl_lang_count.
1611         * c.opt: Add Warning attribute to warning options and Optimization
1612         attribute to optimization options.
1613         * common.opt: Likewise.
1614         Add --help=.
1615         Add -fhelp and -ftarget-help as aliases for the transformed --help
1616         and --target-help options.
1617         * opt-functions.awk: Add code to handle Warning and Optimization
1618         attributes.
1619
1620 2007-02-12  Richard Henderson  <rth@redhat.com>
1621
1622         * config/alpha/constraints.md: New file.
1623         * config/alpha/alpha.c: Include tm-constrs.h.
1624         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
1625         alpha_extra_constraint): Remove.
1626         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
1627         * config/alpha/alpha-protos.h: Update.
1628         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
1629         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
1630         (EXTRA_CONSTRAINT): Remove.
1631         * config/alpha/alpha.md: Include constraints.md.
1632         (adddi splitter): Use satisfies_constraint_*.
1633         * config/alpha/predicates.md (add_operand): Likewise.
1634         (sext_add_operand, addition_operation): Likewise.
1635
1636 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
1637
1638         PR tree-optimization/29145
1639         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
1640         in our handling of restrict qualified pointers.
1641
1642 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1643
1644         PR middle-end/7651
1645         * doc/invoke.texi (Wunused-value): Update description.
1646         (Wextra): Delete item.
1647         * opts.c (set_Wextra): Don't use the value of Wextra to set the
1648         value of Wunused-value.
1649         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
1650         (c_finish_stmt_expr): Don't check extra_warnings.
1651         (emit_side_effect_warnings): The caller is responsible to check
1652         warn_unused_value.
1653
1654 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1655             Matt Thomas  <matt@3am-software.com>
1656
1657         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
1658
1659 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1660
1661         * simplify-rtx.c (simplify_relational_operation_1): Optimize
1662         comparisons of POPCOUNT against zero.
1663         (simplify_const_relational_operation): Likewise.
1664
1665 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1666
1667         * doc/invoke.texi (Wextra): Delete outdated paragraph.
1668
1669 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1670
1671         * dwarf2out.c (root_type): Delete unused function.
1672
1673 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1674
1675         * genattrtab.c (contained_in_p): Delete unused function.
1676         (write_expr_attr_cache): Likewise.
1677
1678 2007-02-11  Jan Hubicka  <jh@suse.cz>
1679
1680         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
1681         previous patch.
1682
1683 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
1684
1685         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
1686         to add the REG_EQ* note.
1687         * see.c (see_merge_one_use_extension): Likewise.
1688         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
1689         turn REG_EQUAL notes into REG_EQUIV notes if the target
1690         register may have more than one set.
1691         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
1692         * gcse.c (try_replace_reg): Likewise.
1693         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
1694         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
1695         more than one REG_EQUIV note.
1696         * reload1.c (gen_reload): Use set_unique_reg_note.
1697
1698 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
1699
1700         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
1701         (ix86_builtin_conversion): New function.
1702
1703 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
1704
1705         PR target/29487
1706         * tree.h (DECL_REPLACEABLE_P): New macro.
1707         * except.c (set_nothrow_function_flags): Likewise.
1708
1709 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
1710             Ira Rosen  <irar@il.ibm.com>
1711             Dorit Nuzman  <dorit@il.ibm.com>
1712
1713         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
1714         * targhooks.c (default_builtin_vectorized_conversion): New.
1715         * targhooks.h (default_builtin_vectorized_function): New declaration.
1716         * target.h (struct vectorize): Add builtin_conversion field.
1717         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
1718         stmt_vec_info_type value.
1719         (vectorizable_conversion): New declaration.
1720         * tree-vect-analyze.c (vect_analyze_operations): Add
1721         vectorizable_conversion call.
1722         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
1723         * tree-vect-transform.c (vectorizable_conversion): New function.
1724         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
1725         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
1726         mode.
1727         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
1728         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
1729         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
1730         or ALTIVEC_BUILTIN_VCFSX.
1731
1732 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1733
1734         PR target/30634
1735         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
1736         CONST_DOUBLE and operand 0 is a hard register.
1737         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
1738         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
1739         is a hard floating-point register.
1740
1741 2007-02-10  Richard Henderson  <rth@redhat.com>
1742             Jakub Jelinek  <jakub@redhat.com>
1743             Alexandre Oliva  <aoliva@redhat.com>
1744
1745         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
1746         * builtin-types.def (BT_WORD): Make unsigned.
1747         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
1748         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
1749         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
1750         * c-decl.c (grokdeclarator): Don't error if !have_tls.
1751         * c-parser.c (c_parser_omp_threadprivate): Likewise.
1752         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
1753         emulated tls.
1754         * expr.c (emutls_var_address): New.
1755         (expand_expr_real_1): Expand emulated tls.
1756         (expand_expr_addr_expr_1): Likewise.
1757         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
1758         * output.h (emutls_finish): Declare.
1759         * toplev.c (compile_file): Call it.
1760         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
1761         address before wrapping in CONST.
1762         * varasm.c (emutls_htab, emutls_object_type): New.
1763         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
1764         (get_emutls_object_name, get_emutls_object_type): New.
1765         (get_emutls_init_templ_addr, emutls_decl): New.
1766         (emutls_common_1, emutls_finish): New.
1767         (assemble_variable): When emulating tls, swap decls; generate
1768         constructor for the emutls objects.
1769         (do_assemble_alias): When emulating tls, swap decl and target name.
1770         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
1771         for emulated tls.
1772         * varpool.c (decide_is_variable_needed): Look at force_output.
1773         Recurse for emulated tls.
1774         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
1775         with decide_is_variable_needed.
1776         * emutls.c: New file.
1777         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
1778         tls_object for real tls.
1779
1780 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1781
1782         PR rtl-optimization/29599
1783         * reload1.c (eliminate_regs_in_insn): Take the destination
1784         mode into account when computing the offset.
1785
1786 2007-02-09  Stuart Hastings  <stuart@apple.com>
1787             Richard Henderson  <rth@redhat.com>
1788
1789         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1790         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1791         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
1792         fixuns_truncdfhi2): New.
1793         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
1794         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
1795         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
1796         (floatunssidf2): Allow nonimmediate source.
1797         * gcc/config/i386/sse.md (movdi_to_sse): New.
1798         (vec_concatv2di): Drop '*'.
1799         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
1800         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1801         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
1802         New.
1803         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
1804         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1805         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
1806         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
1807         (ix86_build_signbit_mask): Fix decl of v, refactor to call
1808         ix86_build_const_vector.
1809         (x86_emit_floatuns): Rewrite.
1810
1811 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1812
1813         * genautomata.c (longest_path_length): Delete unused function.
1814         (struct state): Delete unused longest_path_length.
1815         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
1816         (get_free_state): Delete unused.
1817
1818 2007-02-09  Jan Hubicka  <jh@suse.cz>
1819
1820         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
1821         * doc/invoke.texi (inline-unit-growth): Update default value.
1822
1823         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
1824         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
1825         (rebuild_cgraph_edges): Likewise.
1826         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
1827         (dump_cgraph_node): Dump frequencies.
1828         (cgraph_clone_edge): Add frequency scales.
1829         (cgraph_clone_node): Add freuqnecy.
1830         * cgraph.h (cgraph_edge): Add freuqnecy argument.
1831         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
1832         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
1833         * tree-pass.h (TODO_rebuild_frequencies): New constant.
1834         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
1835         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
1836         (save_inline_function_body): Likewise.
1837         * ipa-inline.c: inluce rtl.h
1838         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
1839         (cgraph_edge_badness): Use frequencies.
1840         (cgraph_decide_recursive_inlining): Update clonning.
1841         (cgraph_decide_inlining_of_small_function): Dump frequency.
1842         * predict.c (estimate_bb_frequencies): Export.
1843         * predict.h (estimate_bb_frequencies): Declare.
1844         * tree-inline.c (copy_bb): Watch overflows.
1845         (expand_call_inline): Update call of cgraph_create_edge.
1846         (optimize_inline_calls): Use TODO flags to update frequnecies.
1847         * passes.h: Include predict.h
1848         (init_optimization_passes): Move profile ahead.
1849         (execute_function_todo): Handle TODO_rebuild_frequencies.
1850
1851 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1852
1853         * config/alpha/alpha.c (emit_insxl): Force the first operand of
1854         the insbl or inswl pattern into a register.
1855
1856 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1857
1858         * config/ia64/ia64.md (bswapdi2): New define_insn.
1859
1860 2007-02-09  Richard Henderson  <rth@redhat.com>
1861
1862         * config/i386/constraints.md (Ym): New constraint.
1863         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
1864         (movdi_1_rex64): Split sse and xmm general register moves from
1865         memory move alternatives.  Use conditional register constraints.
1866         (movsf_1, movdf_integer): Likewise.
1867         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
1868         (movdf_integer_rex64): New.
1869         (pushsf_rex64): Fix output constraints.
1870         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
1871         (sse2_stored): Likewise.
1872         (sse2_storeq_rex64): New.
1873         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
1874         amd and not generic.
1875         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
1876         for optimize_size.  Remove SF/DFmode hack.
1877
1878 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
1879
1880         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
1881         (bit_SSE4a): New.
1882
1883 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
1884             Richard Sandiford  <richard@codesourcery.com>
1885
1886         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
1887         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
1888         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
1889         m68k/t-mlib to tmake_file.
1890         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
1891         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
1892         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
1893         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
1894         variable is not empty, add t-$m68k_arch_family to tmake_file.
1895         Add t-mlibs to tmake_file.
1896         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
1897         * config/m68k/t-cf: New file.
1898         * config/m68k/t-m68k: Likewise.
1899         * config/m68k/t-mlibs: Likewise.
1900         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1901         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1902         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1903         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1904         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
1905         Delete.
1906         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
1907         (INSTALL_LIBGCC): Delete.
1908         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1909         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1910         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1911         (M68K_MLIB_CPU): Define.
1912         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1913         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1914         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
1915
1916 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
1917             Richard Guenther  <rguenther@suse.de>
1918
1919         PR middle-end/23361
1920         * fold-const.c (fold_comparison): Handle obfuscated comparisons
1921         against INT_MIN/INT_MAX.
1922         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
1923         file if a loop is removed.
1924
1925 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
1926
1927         * calls.c (store_one_arg): Pass correct alignment to
1928         emit_push_insn for non-BLKmode values.
1929         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
1930         unaligned stack slot via a suitably aligned slot.
1931
1932 2007-02-08  DJ Delorie  <dj@redhat.com>
1933
1934         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
1935         warnings.
1936         (legal_subregs): Use unsigned char, make const.
1937         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
1938
1939 2007-02-08  Paul Brook  <paul@codesourcery.com>
1940
1941         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
1942         special interworking needed.
1943
1944 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
1945
1946         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
1947         conditional to __SSE2__.
1948         (Entries below should have been added to first ChangeLog
1949         entry for amdfam10 dated 2007-02-05)
1950         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
1951         defined.
1952         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
1953         defined.
1954         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
1955         defined.
1956
1957 2007-02-08  DJ Delorie  <dj@redhat.com>
1958
1959         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
1960         * config/m32c/m32c.c (legal_subregs): New.
1961         (m32c_illegal_subreg_p): New.
1962         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
1963         unsupported subregs of hard regs.
1964
1965 2007-02-08  Jan Hubicka  <jh@suse.cz>
1966
1967         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
1968         the same one; always update histograms.
1969
1970 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1971
1972         * passes.c (init_optimization_passes): Tidy comment.
1973
1974 2007-02-08  Roger Sayle  <roger@eyesopen.com>
1975
1976         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
1977         strip zero_extend, bswap and rotates from POCOUNT's argument.
1978         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
1979         zero_extend and rotates from PARITY's argument.
1980         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
1981         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
1982         of an integer constant at compile-time.
1983
1984 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1985
1986         PR 30562
1987         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
1988         Update all users.
1989         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
1990         users.
1991         (init_alias_info):
1992         * tree-ssa-live.c (remove_unused_locals): Do not remove
1993         TREE_ADDRESSABLE variables.
1994         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
1995         * tree-ssa-operands.c (add_virtual_operand): Remove argument
1996         FOR_CLOBBER.  Update all users.
1997         If VAR has an associated alias set, add a virtual operand for
1998         it if no alias is found to conflict with the memory reference.
1999
2000 2007-02-07  Jan Hubicka  <jh@suse.cz>
2001             Robert Kidd <rkidd@crhc.uiuc.edu>
2002
2003         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
2004
2005 2007-02-07  Ian Lance Taylor  <iant@google.com>
2006
2007         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
2008
2009 2007-02-07  Roger Sayle  <roger@eyesopen.com>
2010
2011         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
2012         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
2013         tablejumpdi, movsi_to_cr_one): Remove constraints from
2014         define_expand's match_operands.
2015
2016 2007-02-07  Roger Sayle  <roger@eyesopen.com>
2017
2018         * global.c (compute_regsets): Move declatation of "i" inside of
2019         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
2020
2021 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
2022
2023         PR c++/30703
2024         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
2025         of INDIRECT_REF <RESULT_DECL>.
2026
2027         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
2028
2029 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
2030             Kaz Kojima  <kkojima@gcc.gnu.org>
2031
2032         PR target/29746
2033         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
2034         properly.
2035         (sh_initialize_trampoline): Add parentheses to avoid a warning.
2036
2037 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2038
2039         * doc/loop.texi: Document possibility not to perform disambiguation
2040         of loops with multiple latches.
2041         * cfgloopmanip.c (alp_enum_p): Removed.
2042         (add_loop): Handle subloops.  Use get_loop_body_with_size.
2043         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
2044         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
2045         the new forwarder block.
2046         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
2047         Handle the case latch is NULL.
2048         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
2049         when marking loop exits.
2050         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
2051         be modified.
2052         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
2053         disambiguate_loops_with_multiple_latches.
2054         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
2055         before fix_loop_structure.
2056         * cfgloop.c: Include pointer-set.h and output.h.
2057         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
2058         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
2059         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
2060         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
2061         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
2062         disambiguate_multiple_latches, get_loop_body_with_size,
2063         disambiguate_loops_with_multiple_latches): New functions.
2064         (flow_loop_dump): Dump multiple latch edges.
2065         (flow_loop_nodes_find): Handle loops with multiple latches.
2066         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
2067         (glb_enum_p): Modified.
2068         (get_loop_body): Use get_loop_body_with_size.
2069         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
2070         (AVOID_CFG_MODIFICATIONS): New constant.
2071         (disambiguate_loops_with_multiple_latches, add_loop,
2072         get_loop_body_with_size): Declare.
2073         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
2074
2075 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
2076
2077         PR inline-asm/28686
2078         * global.c (compute_regsets): New function.
2079         (global_alloc): Refactored ELIMINABLE_REGSET
2080         and NO_GLOBAL_ALLOC_REGS computation out.
2081         (rest_of_handle_global_alloc): Call compute_regsets()
2082         for non-optimizing case.
2083
2084 2007-02-06  Richard Henderson  <rth@redhat.com>
2085
2086         * config/i386/constraints.md (Y2): Rename from Y.
2087         (Yi): New constraint.
2088         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
2089         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
2090         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
2091         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
2092         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
2093         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
2094         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
2095         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
2096         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
2097         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
2098         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
2099         vec_extractv2si_1): Change Y constraints to Y2.
2100         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
2101         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
2102         Change Y constraints to Y2.
2103         (sse2_loadld): Change Y constraints to x.
2104
2105 2007-02-06  Roger Sayle  <roger@eyesopen.com>
2106
2107         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
2108         (parity<mode>2): New define_expand using rs6000_emit_parity.
2109         * config/rs6000/rs6000.c (rs6000_emit_popcount,
2110         rs6000_emit_parity): New functions.
2111         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
2112         rs6000_emit_parity): Prototype here.
2113
2114 2007-02-06  Ian Lance Taylor  <iant@google.com>
2115
2116         * lower-subreg.c (simple_move_operand): Reject CONST.
2117         (resolve_clobber): Call validate_change rather than directly
2118         assigning to XEXP (pat, 0).
2119
2120 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2121
2122         * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
2123         (tree-ssa-reassoc.o): Add pointer-set.h dependency.
2124         (tree-cfg.o): Remove hashtab.h dependency.
2125
2126         * tree-ssa-loop-ivopts.c: Include pointer-set.h.
2127         (struct ivopts_data): Change niters to pointer_map_t.
2128         (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
2129         (niter_for_exit): Create pointer_map on demand.  Change for
2130         pointer_map API.
2131         (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
2132         (free_loop_data): Destroy data->niters if created and reset field.
2133         (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
2134         (tree_ssa_iv_optimize_loop): Check for presence of stale data.
2135
2136         * tree-ssa-reassoc.c: Include pointer-set.h.
2137         (bb_rank): Change to long *.
2138         (operand_rank): Change to pointer_map_t.
2139         (find_operand_rank): Return long, -1 if not found.  Declare as inline.
2140         (insert_operand_rank): Accept long.
2141         (operand_entry_hash, operand_entry_eq): Remove.
2142         (get_rank): Return long.  Adjust for changes above.
2143         (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
2144         and operand_rank.
2145         (fini_reassoc): Delete operand_rank with pointer_map_destroy.
2146
2147         * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
2148         (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
2149         (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
2150         is not NULL.
2151         (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
2152         directly since it cannot be NULL.
2153         (get_vi_for_tree): Rewrite for pointer_map API.
2154         (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
2155         (init_alias_vars): Create vi_for_tree as pointer_map.
2156         (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.
2157
2158         * tree-cfg.c: Don't include hashtab.h.
2159         (edge_to_cases): Declare as pointer_map.
2160         (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
2161         Delete.
2162         (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
2163         (start_recording_case_labels): Create edge_to_cases as pointer_map.
2164         (end_recoding_case_labels): Cleanup edge_to_cases manually before
2165         destroying it.
2166         (record_switch_edge): Delete.
2167         (get_cases_for_edge): Adjust for pointer_map API, inline
2168         record_switch_edge (rewritten for new API), remove goto.
2169
2170 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2171
2172         * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
2173         * tree-nested.c: Include pointer-set.h.
2174         (var_map_elt, var_map_eq, var_map_hash): Delete.
2175         (struct nesting_info): Remove GTY marker.  Change the two htab_t's
2176         to pointer_map_t's.
2177         (nesting_info_bitmap_obstack): New.
2178         (lookup_field_for_decl): Adjust for pointer_map API.
2179         (lookup_tramp_for_decl): Adjust for pointer_map API.
2180         (get_nonlocal_debug_decl): Adjust for pointer_map API.
2181         (get_local_debug_decl): Adjust for pointer_map API.
2182         (convert_nl_goto_reference): Adjust for pointer_map API.
2183         (convert_nl_goto_receiver): Adjust for pointer_map API.
2184         (create_nesting_tree): Create outside GGC space.  Create bitmap on
2185         the new obstack.  Create field_map and var_map as pointer_maps.
2186         (free_nesting_tree): Adjust for changes to create_nesting_tree.
2187         (root): Delete.
2188         (lower_nested_functions): Move root here, no need to NULL it.
2189         Initialize and release the obstack.
2190
2191 2007-02-06  Paolo Bonzini  <bonzini@gnu.org>
2192
2193         * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
2194         Remove prototypes and make them non-static.
2195         (struct tree_int_map): Remove.
2196         * tree.h (struct tree_int_map): Move here, turning TO into an
2197         unsigned int.
2198         (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.
2199
2200         * tree.h (TREE_COMPLEXITY): Remove.
2201         (struct tree_exp): Remove complexity field.
2202         * tree.c (build1_stat): Don't set it.
2203
2204 2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
2205             Victor Kaplansky  <victork@il.ibm.com>
2206
2207         * tree-vectorizer.c (vect_is_simple_use): Support induction.
2208         (vect_is_simple_reduction): Support reduction with induction as
2209         one of the operands.
2210         (vect_is_simple_iv_evolution): Fix formatting.
2211         * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
2212         formatting.  Don't mark induction phis for vectorization.
2213         (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
2214         * tree-vect-transform.c (get_initial_def_for_induction): New function.
2215         (vect_get_vec_def_for_operand): Support induction.
2216         (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
2217         induction case.
2218         (vectorizable_reduction): Support reduction with induction as one of
2219         the operands.
2220         (vectorizable_type_demotion): Use def-type of stmt argument rather
2221         than dummy def-type.
2222
2223         * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
2224         flag_tree_scev_cprop.
2225         * common.opt (tree-scev-cprop): New flag.
2226
2227         * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
2228         call to vect_get_new_vect_var.
2229
2230 2007-02-06  Ira Rosen  <irar@il.ibm.com>
2231
2232         * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
2233         vectype is not NULL.
2234         (vect_pattern_recog_1): Likewise.
2235
2236 2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2237
2238         * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
2239         (fold_negate_expr): Likewise.
2240
2241 2007-02-05  Alexandre Oliva  <aoliva@redhat.com>
2242
2243         PR debug/30189
2244         * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
2245         even if cv-qualification is the same.
2246
2247 2007-02-05  Geoffrey Keating  <geoffk@apple.com>
2248
2249         * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
2250         __enable_execute_stack on completion.
2251
2252 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2253
2254         * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
2255         athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
2256         athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
2257         athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
2258         athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
2259         athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
2260         athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
2261         athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.
2262
2263 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2264
2265         * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
2266         cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
2267         swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
2268         fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
2269         x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
2270         floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
2271         floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
2272         mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
2273         umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
2274         umuldi3_highpart_rex64, umulsi3_highpart_insn,
2275         umulsi3_highpart_zext, smuldi3_highpart_rex64,
2276         smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
2277         x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
2278         sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
2279         sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
2280         sqrtextenddfxf2_i387): Added amdfam10_decode.
2281
2282         * config/i386/athlon.md (athlon_idirect_amdfam10,
2283         athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
2284         athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
2285         athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
2286         athlon_ivector_store_amdfam10): New define_insn_reservation.
2287         (athlon_idirect_loadmov, athlon_idirect_movstore): Added
2288         amdfam10.
2289
2290 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2291
2292         * config/i386/athlon.md (athlon_call_amdfam10,
2293         athlon_pop_amdfam10, athlon_lea_amdfam10): New
2294         define_insn_reservation.
2295         (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
2296         athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
2297         athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.
2298
2299 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2300
2301         * config/i386/athlon.md (athlon_sseld_amdfam10,
2302         athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
2303         athlon_mmxssest_short_amdfam10): New define_insn_reservation.
2304
2305 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2306
2307         * config/i386/athlon.md (athlon_sseins_amdfam10): New
2308         define_insn_reservation.
2309         * config/i386/i386.md (sseins): Added sseins to define_attr type
2310         and define_attr unit.
2311         * config/i386/sse.md: Set type attribute to sseins for insertq
2312         and insertqi.
2313
2314 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2315
2316         * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
2317         ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
2318         ssecomi_load_amdfam10, ssecomi_amdfam10,
2319         sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
2320         define_insn_reservation.
2321         (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.
2322
2323 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2324
2325         * config/i386/athlon.md (cvtss2sd_load_amdfam10,
2326         cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
2327         cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
2328         cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
2329         cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
2330         cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
2331         define_insn_reservation.
2332
2333         * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
2334         cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
2335         cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
2336         cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
2337         cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.
2338
2339 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2340
2341         * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
2342         athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
2343         athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
2344         (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
2345         athlon_ssemul_load_k8): Added amdfam10.
2346
2347 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2348
2349         * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
2350         (x86_sse_unaligned_move_optimal): New variable.
2351
2352         * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
2353         m_AMDFAM10.
2354         (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
2355         for unaligned vector SSE double/single precision loads for AMDFAM10.
2356
2357 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2358
2359         * config/i386/i386.h (TARGET_AMDFAM10): New macro.
2360         (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
2361         Define TARGET_CPU_DEFAULT_amdfam10.
2362         (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
2363         (processor_type): Add PROCESSOR_AMDFAM10.
2364
2365         * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
2366         processor_type in config/i386/i386.h.
2367         Enable imul peepholes for TARGET_AMDFAM10.
2368
2369         * config.gcc: Add support for --with-cpu option for amdfam10.
2370
2371         * config/i386/i386.c (amdfam10_cost): New variable.
2372         (m_AMDFAM10): New macro.
2373         (m_ATHLON_K8_AMDFAM10): New macro.
2374         (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
2375         x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
2376         x86_promote_QImode, x86_integer_DFmode_moves,
2377         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2378         x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
2379         x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
2380         x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
2381         x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
2382         Enable/disable for amdfam10.
2383         (override_options): Add amdfam10_cost to processor_target_table.
2384         Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
2385         processor_alias_table.
2386         (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
2387         (ix86_adjust_cost): Add code for amdfam10.
2388
2389 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2390
2391         * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
2392         instruction set feature flag. Add new (-mpopcnt) flag for popcnt
2393         instruction. Add new SSE4A (-msse4a) instruction set feature flag.
2394         * config/i386/i386.h: Add builtin definition for SSE4A.
2395         * config/i386/i386.md: Add support for ABM instructions
2396         (popcnt and lzcnt).
2397         * config/i386/sse.md: Add support for SSE4A instructions
2398         (movntss, movntsd, extrq, insertq).
2399         * config/i386/i386.c: Add support for ABM and SSE4A builtins.
2400         Add -march=amdfam10 flag.
2401         * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
2402         * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
2403         and amdfam10.
2404         * doc/extend.texi: Add documentation for SSE4A builtins.
2405
2406 2007-02-05  Bob Wilson  <bob.wilson@acm.org>
2407
2408         * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.
2409
2410 2007-02-05  Richard Guenther  <rguenther@suse.de>
2411
2412         * tree-vectorizer.h (vectorizable_function): Add argument type
2413         argument, change return type.
2414         * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
2415         * tree-vect-transform.c (vectorizable_function): Handle extra
2416         argument, return vectorized function decl.
2417         (build_vectorized_function_call): Remove.
2418         (vectorizable_call): Handle calls with result and argument types
2419         differing.  Handle loop vectorization factor correctly.
2420         * targhooks.c (default_builtin_vectorized_function): Adjust for
2421         extra argument.
2422         * targhooks.h (default_builtin_vectorized_function): Likewise.
2423         * target.h (builtin_vectorized_function): Add argument type
2424         argument.
2425         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2426         extra argument, allow vectorizing of lrintf.
2427         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
2428         documentation of target hook.
2429
2430 2007-02-05  Hans-Peter Nilsson  <hp@axis.com>
2431
2432         PR target/30665
2433         * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
2434         ("*andhi_clear", andu (casesi+45)): For size-changed operand where
2435         memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.
2436
2437 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2438
2439         * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
2440         BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
2441         <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
2442         * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
2443         before canonicalizing sincos to cexpi.
2444         (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
2445
2446 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2447
2448         * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
2449         Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
2450         (alpha_init_builtins): Use alpha_add_builtins to process tables.
2451
2452 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2453
2454         * mips-tfile.c (initialize_init_file): Correct endianness test.
2455
2456 2007-02-05  Kazu Hirata  <kazu@codesourcery.com>
2457
2458         * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
2459         the 'y' constraint.
2460
2461 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2462
2463         * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
2464         saves in a PARALLEL before the register assignments.
2465
2466 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2467
2468         * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
2469         DWARF_FRAME_RETURN_COLUMN to be a general register.
2470         * dwarf2out.c (init_return_column_size): New function, split from...
2471         (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
2472         DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
2473         to be nongeneral registers.
2474         * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
2475         integer registers.
2476         (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
2477         (DWARF_ALT_FRAME_RETURN_COLUMN): Define.
2478
2479 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2480
2481         * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.
2482
2483 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2484
2485         * cfgloopmanip.c (loop_delete_branch_edge): Removed.
2486         (remove_path): Use can_remove_branch_p and remove_branch instead
2487         of loop_delete_branch_edge.
2488         * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
2489         (tree_transform_and_unroll_loop): Remove dead branches immediately.
2490         Update profile using scale_dominated_blocks_in_loop.
2491         * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
2492         * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
2493         (can_remove_branch_p, remove_branch): Declare.
2494         * tree-cfg.c (tree_can_remove_branch_p): New function.
2495         (tree_cfg_hooks): Add tree_can_remove_branch_p.
2496         * cfgrtl.c (rtl_can_remove_branch_p): New function.
2497         (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.
2498
2499 2007-02-05  Jan Hubicka  <jh@suse.cz>
2500
2501         PR middle-end/30696
2502         * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
2503         nodes in cgraph, don't remove offline copy of the function.
2504
2505 2007-02-04  Jan Hubicka  <jh@suse.cz>
2506
2507         * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
2508         vectors might cause maybe_lookup_element_for_expr to be called
2509         on non-sra-candidate.
2510
2511 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2512
2513         * config/bfin/bfin-modes.def, config/bfin/bfin.c,
2514         config/bfin/bfin.md, config/bfin/predicates.md: Follow
2515         spelling conventions.
2516
2517 2007-02-04  Richard Guenther  <rguenther@suse.de>
2518
2519         PR middle-end/30636
2520         * fold-const.c (try_move_mult_to_index): Make sure to not
2521         overflow one dimension of a multi-dimensional array access.
2522
2523 2007-02-04  Jan Hubicka  <jh@suse.cz>
2524
2525         * passes.c (init_optimization_passes): Reindent.
2526
2527 2007-02-04  Jan Hubicka  <jh@suse.cz>
2528             Eric Botcazou  <ebotcazou@adacore.com>
2529
2530         * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
2531         (execute_fixup_cfg): Break out the abnormal goto code.
2532         * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
2533         (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
2534         (optimize_inline_calls): Call make_nonlocal_label_edges.
2535
2536 2007-02-04  Jan Hubicka  <jh@suse.cz>
2537
2538         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
2539         true when something was changed.
2540         (rename_ssa_copies): When something was changed, do
2541         TODO_remove_unused_locals.
2542         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
2543         add TODO_remove_unused_locals when instruction was removed.
2544
2545 2007-02-04  Jan Hubicka  <jh@suse.cz>
2546
2547         * ipa-inline.c (try_inline): Improve debug output; work on already
2548         inline edges too.
2549         (cgraph_decide_inlining_incrementally): Indent; improve debug output;
2550         call try_inline for already inlined edges too when flattening;
2551         inline also functions that make callee growth but overall unit size
2552         reduce.
2553
2554 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2555
2556         * config/m32c/bitops.md, config/m32c/jump.md,
2557         config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
2558         config/m32r/m32r.h, config/m32r/m32r.md,
2559         config/m32r/predicates.md, config/m68hc11/larith.asm,
2560         config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
2561         config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
2562         config/mips/mips-protos.h, config/mips/mips.c,
2563         config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
2564         config/mn10300/mn10300.h, config/mn10300/predicates.md,
2565         config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
2566         spelling conventions.
2567
2568         * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
2569         Follow spelling conventions.
2570
2571 2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>
2572
2573         * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
2574         warn about C++0x compatibility.
2575
2576 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2577
2578         * config/h8300/h8300.c, config/h8300/h8300.h,
2579         config/h8300/h8300.md: Follow spelling conventions.
2580
2581 2007-02-03  Uros Bizjak  <ubizjak@gmail.com>
2582
2583         PR middle-end/30667
2584         * combine.c (try_combine): Do not substitute source operand
2585         with constants wider than 2 * HOST_BITS_PER_WIDE_INT.
2586
2587 2007-02-03  Jan Hubicka  <jh@suse.cz>
2588
2589         PR gcov-profile/30650
2590         * value-prof.c (stringop_block_profile): Fix handling of size counter;
2591         do not divide by zero for never executed counters.
2592         (tree_find_values_to_profile): Fix counters.
2593         * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2594
2595 2007-02-03  Ian Lance Taylor  <iant@google.com>
2596
2597         * lower-subreg.c (simple_move_operand): New static function,
2598         broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
2599         operands.
2600         (simple_move): Call simple_move_operand.
2601         (find_decomposable_subregs): Add special handling of MEMs.
2602         (can_decompose_p): Rename from cannot_decompose_p.  Reverse
2603         meaning of return value.  If we see a hard register, test whether
2604         it can store a word_mode value.  Change all callers.
2605
2606 2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2607
2608         * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
2609         ftrapv insns and expanders.
2610         (subdi3): Change define_expand operand 1 to arith11_operand, and
2611         operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
2612         pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
2613         handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
2614         respectively.
2615
2616         PR middle-end/30174
2617         * varasm.c (notice_global_symbol): Treat global objects as weak when
2618         flag_shlib is true.
2619
2620 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2621
2622         * emit-rtl.c (dconstpi): Delete.
2623         (dconstsqrt2): New.
2624         (init_emit_once): Delete dconstpi and init dconstsqrt2.
2625         * real.h (dconstpi): Delete.
2626         (dconstsqrt2): New.
2627         * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
2628         (fold_builtin_hypot): Likewise.
2629
2630 2007-02-03  Tom Tromey  <tromey@redhat.com>
2631
2632         PR driver/30246
2633         * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
2634         -gcoff3, -gxcoff3, -gvms3 implies -dD.
2635
2636 2007-02-03  Kazu Hirata  <kazu@codesourcery.com>
2637
2638         * c-decl.c, config/avr/avr.c, config/avr/avr.h,
2639         config/m68k/m68k.c, config/m68k/netbsd-elf.h,
2640         config/mn10300/mn10300.c, config/pdp11/pdp11.h,
2641         config/rs6000/cell.md, config/rs6000/darwin.h,
2642         config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
2643         config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
2644         jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
2645         tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
2646         typos.  Follow spelling conventions.
2647         * doc/invoke.texi: Follow spelling conventions.
2648
2649 2007-02-03  Roger Sayle  <roger@eyesopen.com>
2650
2651         * simplify-rtx.c (simplify_relational_operation_1): Implement some
2652         canonicalization transformations that attempt to simplify integer
2653         constant comparisons to become comparisons against zero.
2654
2655 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2656
2657         * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
2658         fabs(x)*sqrt(2).
2659         * fold-const.c (fold_binary): Fix comment typos.  Fold complex
2660         (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).
2661
2662 2007-02-02  Mike Stump  <mrs@apple.com>
2663
2664         * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
2665         * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
2666         (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
2667         generate a branch island.
2668
2669 2007-02-02  Bob Wilson  <bob.wilson@acm.org>
2670
2671         * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
2672         (xtensa_legitimate_address_p): New.
2673         (xtensa_legitimize_address): New.
2674         (xtensa_output_addr_const_extra): New.
2675         * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
2676         (BASE_REG_P): New.
2677         (REG_OK_FOR_BASE_P): Use BASE_REG_P.
2678         (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
2679         (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
2680         (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
2681         * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
2682         (xtensa_legitimize_address): New.
2683         (xtensa_output_addr_const_extra): New.
2684
2685 2007-02-02  Steve Ellcey  <sje@cup.hp.com>
2686
2687         * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
2688
2689 2007-02-02  Ian Lance Taylor  <iant@google.com>
2690
2691         * expmed.c (expand_divmod): Add comment.
2692
2693 2007-02-02  Kazu Hirata  <kazu@codesourcery.com>
2694
2695         * emit-rtl.c (renumber_insns): Remove.
2696         * flags.h: Remove the extern for flag_renumber_insns.
2697         * rtl.h: Remove the prototype for renumber_insns.
2698         * toplev.c (flag_renumber_insns): Remove.
2699
2700 2007-02-02  Hui-May Chang  <hm.chang@apple.com>
2701
2702         Revert for x86 darwin:
2703         2005-06-19  Uros Bizjak  <uros@kss-loka.si>
2704
2705         * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
2706         code before the following patch under TARGET_MACHO.
2707         (ix86_function_value_regno_p): Likewise.
2708
2709 2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2710
2711         * fold-const.c (negate_expr_p, fold_negate_expr): Handle
2712         COMPLEX_EXPR.
2713
2714 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2715
2716         PR target/29682
2717         * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
2718         general or fp registers.  Add comments.
2719         * config/ia64/ia64.md (reg_pred_prefix): Add comment.
2720
2721 2007-02-02  Paolo Bonzini  <bonzini@gnu.org>
2722
2723         * pointer-set.c (insert_aux): Only return insertion slot.
2724         (pointer_set_insert): Adjust.
2725         (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
2726         pointer_map_destroy, pointer_map_insert, pointer_map_contains,
2727         pointer_map_traverse): New.
2728         * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
2729         pointer_map_create,  pointer_map_destroy, pointer_map_insert,
2730         pointer_map_contains, pointer_map_traverse): Declare.
2731
2732 2007-02-02  Jakub Jelinek  <jakub@redhat.com>
2733
2734         PR middle-end/30473
2735         * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
2736         sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).
2737
2738 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2739
2740         * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
2741
2742         (struct _dep): New type.
2743         (dep_t): New typedef.
2744         (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
2745         (DEP_STATUS): New access macro.  The macro with the same name was
2746         renamed to DEP_LINK_STATUS.
2747         (dep_init): Declare function
2748
2749         (struct _dep_link): New type.
2750         (dep_link_t): New typedef.
2751         (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
2752         (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
2753         (DEP_LINK_STATUS): New macro.
2754         (debug_dep_links): New debug function.
2755
2756         (struct _deps_list): New type.
2757         (deps_list_t): New typedef.
2758         (DEPS_LIST_FIRST): New access macro.
2759         (FOR_EACH_DEP_LINK): New cycle macro.
2760         (create_deps_list, free_deps_list, delete_deps_list): Declare
2761         functions.
2762         (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
2763         (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
2764         (copy_deps_list_change_con): Ditto.
2765
2766         (move_dep_link): Declare function.
2767
2768         (struct _dep_node): New type.
2769         (dep_node_t): New typedef.
2770         (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
2771
2772         (struct haifa_insn_data.back_deps): New field to hold backward
2773         dependencies of the insn.
2774         (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
2775         to deps_list_t.
2776         (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
2777         Change its type to deps_list_t.
2778         (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
2779         (INSN_DEPEND): Rename to INSN_FORW_DEPS.
2780         (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
2781
2782         (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
2783
2784         (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.
2785
2786         (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
2787         all callers.
2788         (dep_cost): Declare.
2789
2790         * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
2791         (ds_to_dk, dk_to_ds): New functions.
2792
2793         (init_dep_1): New static function.
2794         (init_dep): New function.
2795         (copy_dep): New static function.
2796
2797         (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
2798         functions.
2799         (detach_dep_link): New static function.
2800         (move_dep_link): New function.
2801
2802         (dep_links_consistent_p, dump_dep_links): New static functions.
2803         (debug_dep_links): New debugging function.
2804
2805         (deps_obstack, dl_obstack, dn_obstack): New static variables.
2806
2807         (alloc_deps_list, init_deps_list): New static functions.
2808         (create_deps_list): New function.
2809         (clear_deps_list): New static function.
2810         (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
2811         (deps_list_consistent_p, dump_deps_list): New static functions.
2812         (debug_deps_list): New function.
2813         (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
2814         functions.
2815         (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
2816
2817         (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
2818         use new scheduler dependencies lists.
2819         (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
2820         (sched_analyze): Ditto.  Initialize dependencies lists.
2821         (add_forw_dep, compute_forward_dependences): Update to use new
2822         scheduler dependencies lists.
2823
2824         (init_dependency_caches): Init deps_obstack.
2825         (free_dependency_caches): Free deps_obstack.
2826
2827         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
2828         new scheduler dependencies lists.
2829         (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
2830         (add_back_forw_dep, delete_back_forw_dep): Ditto.
2831
2832         * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
2833         Update to use new scheduler dependencies lists.
2834         (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
2835         (debug_dependencies): Ditto.
2836         (schedule_region): Update comments.
2837
2838         * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
2839         scheduler dependencies lists.
2840         (schedule_ebb): Update comments.
2841
2842         * rtl.def (DEPS_LIST): Remove.
2843
2844         * lists.c (unused_deps_list): Remove.
2845         (free_list): Update assertions.
2846
2847         (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
2848         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2849
2850         * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
2851         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2852
2853         * haifa-sched.c (comments): Update.
2854         (insn_cost1): Remove.  Inline the code into insn_cost ().
2855         (insn_cost): Update to use new scheduler dependencies lists.  Move
2856         processing of the dependency cost to dep_cost ().
2857         (dep_cost): New function.  Use it instead of insn_cost () when
2858         evaluating cost of the dependency.  Use compatible interface to
2859         interact with the target.
2860         (priority): Update to use new scheduler dependencies lists.
2861         (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
2862         with greater number of insns that depend on the insn.
2863         (schedule_insn): Update to use new scheduler dependencies lists.  Add
2864         code to free backward dependencies lists.  Inline and optimize code
2865         from resolve_dep () - see PR28071.
2866         (ok_for_early_queue_removal): Update to use new scheduler dependencies
2867         lists.  Update call to targetm.sched.is_costly_dependence hook.
2868
2869         (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
2870         scheduler dependencies lists.
2871
2872         (resolve_dep): Remove.  Move the logic to schedule_insn ().
2873         (init_h_i_d): Initialize dependencies lists.
2874
2875         (process_insn_depend_be_in_spec): Rename to
2876         process_insn_forw_deps_be_in_spec.  Update to use new scheduler
2877         dependencies lists.
2878         (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
2879         Update to use new scheduler dependencies lists.
2880         (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
2881
2882         * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
2883         new scheduler dependencies lists.
2884         (build_intra_loop_deps): Ditto.
2885
2886         * target.h (struct _dep): Declare to use in
2887         gcc_target.sched.is_costly_dependence.
2888         (struct gcc_target.sched.adjust_cost): Fix typo.
2889         (struct gcc_target.sched.is_costly_dependence): Change signature to use
2890         single dep_t parameter instead of an equivalent triad.
2891         (struct gcc_target.sched.adjust_cost_2): Remove.
2892
2893         * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
2894
2895         * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
2896
2897         * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
2898         documentation.
2899         (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
2900
2901         * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
2902         (REG_DEP_TRUE): Document.
2903
2904         * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
2905         Change signature to correspond to the targetm.sched.adjust_cost hook.
2906         Update use in TARGET_SCHED_ADJUST_COST_2.
2907         (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
2908         (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
2909         new scheduler dependencies lists.
2910         (ia64_gen_check): Ditto.
2911
2912         * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
2913         dependencies lists.
2914
2915         * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
2916         signature to correspond to the targetm.sched.is_costly_dependence hook.
2917         (is_costly_group): Update to use new scheduler dependencies lists.
2918
2919         * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
2920         instead of INSN_COST () macro.
2921
2922 2007-02-01  Ian Lance Taylor  <iant@google.com>
2923
2924         * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
2925
2926 2007-02-01  Guy Martin  <gmsoft@gentoo.org>
2927
2928         * pa.md (tp_load): Correct mfctl instruction syntax.
2929
2930 2007-02-01  Geoffrey Keating  <geoffk@apple.com>
2931
2932         * config/rs6000/rs6000.c (rs6000_stack_info): Correct
2933         altivec_padding_size calculation on AIX.  Improve comment, add
2934         assert to verify that it's right.
2935
2936         * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
2937         64-bit.
2938
2939 2007-2-01  Seongbae Park  <seongbae.park@gmail.com>
2940
2941         PR inline-asm/28686
2942         * global.c (global_alloc): Add mising initialization of
2943         ELIMINABLE_REGSET.
2944
2945 2007-02-01  Roger Sayle  <roger@eyesopen.com>
2946
2947         * alias.c (init_alias_analysis): Correct whitespace.
2948         * bb-reorder.c (fix_edges_for_rarely_executed_code,
2949         partition_hot_cold_basic_blocks): Likewise.
2950         * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
2951         expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
2952         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
2953         fold_builtin_snprintf_chk, fold_builtin_printf,
2954         fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
2955         do_mpfr_arg3, do_mpfr_sincos): Likewise.
2956         * cfgcleanup.c (cleanup_cfg): Likewise.
2957         * cfgexpand.c (tree_expand_cfg): Likewise.
2958         * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
2959         * function.c (get_next_funcdef_no): Likewise.
2960         * gengtype.c (main): Likewise.
2961         * genmodes.c (main): Likewise.
2962         * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
2963         * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
2964         * ifcvt.c (noce_emit_move_insn): Likewise.
2965         * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
2966         Likewise.
2967         * stor-layout.c (get_best_mode): Likewise.
2968         * tree-ssa-loop-niter.c (get_val_for): Likewise.
2969         * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
2970         scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
2971         perform_var_substitution, solve_graph): Likewise.
2972         * tree-vrp.c (vrp_finalize): Likewise.
2973
2974 2007-02-01  Ian Lance Taylor  <iant@google.com>
2975
2976         * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
2977         high part of a paradoxical subreg, return a constant zero.
2978
2979 2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>
2980
2981         * toplev.c (lang_dependent_init): Call init_set_costs.
2982         * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
2983
2984 2007-02-01  Richard Guenther  <rguenther@suse.de>
2985
2986         PR middle-end/30656
2987         * fold-const.c (fold_negate_expr): Allow negating a
2988         constant if overflow does not change.
2989
2990 2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2991
2992         * doc/c-tree.texi (Expression trees): Improve markup.
2993         * doc/tm.texi (Register Classes, Addressing Modes)
2994         (Floating Point): Fix spacing after abbreviations.  Fix some
2995         typos.
2996
2997 2007-02-01  Ben Elliston  <bje@au.ibm.com>
2998
2999         * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
3000         * doc/contrib.texi: Likewise.
3001         * doc/install.texi: Likewise.
3002
3003 2007-01-31  Richard Henderson  <rth@redhat.com>
3004             Ian Lance Taylor  <iant@google.com>
3005
3006         * lower-subreg.c: New file.
3007         * rtl.def (CONCATN): Define.
3008         * passes.c (init_optimization_passes): Add pass_lower_subreg and
3009         pass_lower_subreg2.
3010         * emit-rtl.c (update_reg_offset): New static function, broken out
3011         of gen_rtx_REG_offset.
3012         (gen_rtx_REG_offset): Call update_reg_offset.
3013         (gen_reg_rtx_offset): New function.
3014         * regclass.c: Revert patch of 2006-03-05, restoring
3015         reg_scan_update.
3016         (clear_reg_info_regno): New function.
3017         * dwarf2out.c (concatn_loc_descriptor): New static function.
3018         (loc_descriptor): Handle CONCATN.
3019         * common.opt (fsplit_wide_types): New option.
3020         * opts.c (decode_options): Set flag_split_wide_types when
3021         optimizing.
3022         * timevar.def (TV_LOWER_SUBREG): Define.
3023         * rtl.h (gen_reg_rtx_offset): Declare.
3024         (reg_scan_update): Declare.
3025         * regs.h (clear_reg_info_regno): Declare.
3026         * tree-pass.h (pass_lower_subreg): Declare.
3027         (pass_lower_subreg2): Declare.
3028         * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
3029         (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
3030         -fsplit-wide-types.
3031         * doc/rtl.texi (Regs and Memory): Document concat and concatn.
3032         * Makefile.in (OBJS-common): Add lower-subreg.o.
3033         (lower-subreg.o): New target.
3034
3035 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3036
3037         * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
3038
3039 2007-01-31  Anatoly Sokolov <aesok@post.ru>
3040
3041         PR target/19087
3042         * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
3043
3044 2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3045
3046         PR middle-end/29335
3047         * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.
3048
3049 2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>
3050
3051         * cfgloop.h: Include vec-prim.h.
3052         (enum li_flags): Remove LI_ONLY_OLD.
3053         (loop_iterator): Changed.
3054         (fel_next, fel_init): Iterate over loop tree.
3055         (FOR_EACH_LOOP_BREAK): New macro.
3056         * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
3057         FOR_EACH_LOOP.
3058         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
3059         * modulo-sched.c (sms_schedule): Ditto.
3060         * tree-vectorizer.c (vectorize_loops): Ditto.
3061         * doc/loop.texi: Update information on loop numbering and behavior of
3062         FOR_EACH_LOOP wrto new loops.
3063         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
3064         add_to_evolution_1): Test nestedness of loops instead of comparing
3065         their numbers.
3066         * tree-chrec.c (chrec_fold_plus_poly_poly,
3067         chrec_fold_multiply_poly_poly, chrec_evaluate,
3068         hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
3069         reset_evolution_in_loop): Ditto.
3070         * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.
3071
3072 2007-01-31  Dirk Mueller  <dmueller@suse.de>
3073
3074         * c-common.c (warn_about_parentheses): Separate warning about
3075         un-parenthized sequence of comparison operators from the one
3076         which is supposed to warn about x <= y <= z.
3077
3078 2007-01-31  Uros Bizjak  <ubizjak@gmail.com>
3079
3080         * optabs.h (enum optab_index): Add new OTI_isinf.
3081         (isinf_optab): Define corresponding macro.
3082         * optabs.c (init_optabs): Initialize isinf_optab.
3083         * genopinit.c (optabs): Implement isinf_optab using isinf?f2
3084         patterns.
3085         * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
3086         (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
3087         using isinf_optab.
3088         (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
3089         expand_builtin_interclass_mathfn.
3090         * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
3091         * config/i386/i386.md (UNSPEC_FXAM): New constant.
3092         (fxam<mode>2_i387): New insn pattern.
3093         (isinf<mode>2) New expander to implement isinf, isinff and isinfl
3094         built-in functions as x87 inline asm.
3095
3096 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3097
3098         * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.
3099
3100 2007-01-30  Eric Christopher  <echristo@apple.com>
3101
3102         * config.gcc: Add geode.
3103
3104 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3105
3106         * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
3107         ipa-inline.c, tree-profile.c, tree-ssa-live.c,
3108         tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
3109         value-prof.c: Fix comment typos.
3110
3111 2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3112
3113         PR c++/24745
3114         * doc/invoke.texi (Wpointer-arith): Document warning.
3115
3116 2007-01-30  Janis Johnson  <janis187@us.ibm.com>
3117
3118         * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
3119         the list of discrepancies from the draft TR.
3120
3121 2007-01-30  Dirk Mueller  <dmueller@suse.de>
3122
3123         PR c++/30601
3124         * doc/invoke.texi (-Wreturn-type): Update description to
3125         match new behavior.
3126
3127 2007-01-30  Richard Sandiford  <richard@codesourcery.com>
3128
3129         * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
3130
3131 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
3132
3133         * builtins.c (expand_builtin_int_interclass_roundingfn): New function
3134         to handle optabs that operate on floating point input argument and
3135         output to integer output.
3136         (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
3137         (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
3138         (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
3139         expand_builtin_interclass_mathfn ().
3140         * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
3141         (ilogbsi2): Remove.
3142         (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
3143         ilogbl built-in functions as x87 intrinsics.
3144
3145 2007-01-30  Richard Guenther  <rguenther@suse.de>
3146
3147         PR middle-end/27657
3148         * dwarf2out.c (reference_to_unused): Query varpool if the
3149         variable was output.
3150
3151 2007-01-30  Richard Guenther  <rguenther@suse.de>
3152
3153         PR middle-end/30313
3154         * passes.c (execute_one_pass): Reset in_gimple_form to not
3155         confuse non-unit-at-a-time mode.
3156
3157 2007-01-29  Roger Sayle  <roger@eyesopen.com>
3158             Richard Guenther  <rguenther@suse.de>
3159
3160         * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
3161         avoid undefined behaviour on overflow.  Use force_fit_type_double
3162         to construct the constant with the specified TREE_OVERFLOW.
3163
3164 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3165
3166         * config/dfp-bit.c: Add parameterized support for fp exceptions.
3167         * config/dfp-bit.h: Ditto.
3168
3169 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3170
3171         * c-decl.c (pop_scope): Replace warnings with call to
3172         warn_for_unused_label.
3173         * c-common.h (warn_for_unused_label): Declare.
3174         * c-common.c (warn_for_unused_label): Define.
3175
3176 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3177
3178         * tree-optimize.c (update_inlined_to_pointers): Delete unused
3179         function.
3180
3181 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3182
3183         * Makefile.in (USER_H): Remove decfloat.h.
3184         * ginclude/decfloat.h: Delete, moving contents to ...
3185         * ginclude/float.h: Add support for decimal floating point,
3186         guarded by __STDC_WANT_DEC_FP__.
3187
3188 2007-01-29  Mike Stump  <mrs@apple.com>
3189
3190         * doc/gccint.texi (Top): Rename Loop Representation to Loop
3191         Analysis and Representation to resolve case insensitive conflict.
3192         * doc/loop.texi (Loop Analysis and Representation): Likewise.
3193
3194 2007-01-28  Daniel Berlin  <dberlin@dberlin.org>
3195
3196         * tree.h (struct tree_memory_tag): Add aliases member.
3197         (MTAG_ALIASES): New macro.
3198         * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
3199         (add_may_alias): Remove pointer-set. Update for may_aliases being
3200         a bitmap.
3201         (mark_aliases_call_clobbered): Update for may_aliases being a
3202         bitmap.
3203         (compute_tag_properties): Ditto.
3204         (create_partition_for): Ditto.
3205         (compute_memory_partitions): Ditto.
3206         (dump_may_aliases_for): Ditto.
3207         (is_aliased_with): Ditto.
3208         (add_may_alias_for_new_tag): Ditto.
3209         (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
3210         (compute_is_aliased): New function.
3211         (compute_may_aliases): Call compute_is_aliased).
3212         (init_alias_info): Initialize alias_bitmap_obstack.
3213         (union_alias_set_into): New function.
3214         (compute_flow_sensitive_aliasing): Use union_aliases_into.
3215         (have_common_aliases_p): Rewrite to take two bitmaps and use
3216         intersection.
3217         (compute_flow_insensitive_aliasing): Stop using pointer-sets.
3218         Update for bitmaps.
3219         (finalize_ref_all_pointers): Update for add_may_alias changes.
3220         (new_type_alias): Ditto.
3221         * tree-flow-inline.h (may_aliases): Return a bitmap.
3222         * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
3223         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
3224         may_aliases being a bitmap.
3225         * tree-flow.h (struct var_ann_d): Remove may_aliases member.
3226         may_aliases now returns a bitmap.
3227         * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
3228         being a bitmap.
3229         * tree-ssa-operands.c (add_virtual_operand): Update for
3230         may_aliases being a bitmap.
3231
3232 2007-01-29  Daniel Berlin  <dberlin@dberlin.org>
3233
3234         PR tree-optimization/30630
3235         * tree-ssa-structalias.c (do_complex_constraint): Mark correct
3236         variable as changed.
3237
3238 2007-01-29  Simon Martin  <simartin@users.sourceforge.net>
3239
3240         PR c++/28266
3241         * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
3242         expanded only once even if an error occurs.
3243
3244 2007-01-29  Ben Elliston  <bje@au.ibm.com>
3245
3246         * gcov-io.h (__gcov_indirect_call_profiler): Declare.
3247         (__gcov_average_profiler): Likewise.
3248         (__gcov_ior_profiler): Likewise.
3249         (__gcov_merge_ior): Likewise.
3250
3251 2007-01-28  Jan Hubicka  <jh@suse.cz>
3252
3253         * builtins.c (expand_builtin_memset): Fix typo in my last patch.
3254         * value-prof.c (stringop_block_profile): Likewise.
3255
3256 2007-01-28  Jan Hubicka  <jh@suse.cz>
3257
3258         * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
3259         variant handling histograms; add wrapper.
3260         (clear_storage_via_libcall): Export.
3261         (emit_block_move_hints): Break out from ...; add histograms.
3262         (emit_block_move): ... this one.
3263         (clear_storage_hints): Break out from ...; add histograms.
3264         (clear_storage): ... this one.
3265         (set_storage_via_memset): Handle histogram.
3266         * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
3267         (clear_storage_hints, clear_storage_via_libcall): Declare.
3268         (set_storage_via_setmem): Update prototype.
3269         * doc/md.texi (movmem, setmem): Document new arguments.
3270
3271         * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
3272         new histograms.
3273         (stringop_block_profile): New global function.
3274         (tree_stringops_values_to_profile): Profile block size and alignment.
3275         * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
3276         HIST_TYPE_IOR.
3277         (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
3278         (stringop_block_profile): Declare.
3279         * builtins.c: Include value-prof.h.
3280         (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
3281         * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
3282         (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
3283         (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
3284         * profile.c (instrument_values): Add new counters.
3285         * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
3286         calls.
3287         * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
3288         (tree_init_edge_profiler): Build new profilers.
3289         (tree_gen_average_profiler, tree_gen_ior_profiler): New.
3290         (pass_tree_profile): Add dump.
3291         (tree_profile_hooks): Update.
3292         * Makefile.in (LIBGCOV): Add new constants.
3293         * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
3294         __gcov_ior_profiler): New.
3295         * i386.md (movmem/setmem expanders): Add new optional arguments.
3296
3297 2007-01-28  David Edelsohn  <edelsohn@gnu.org>
3298
3299         * doc/md.texi (Standard Pattern Names): Document blockage pattern.
3300
3301 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3302
3303         * tree-ssa-loop-unswitch.c: Include tree-inline.h.
3304         (tree_unswitch_single_loop): Pass eni_size_weights to
3305         tree_num_loop_insns.
3306         * tree-ssa-loop-manip.c: Include tree-inline.h.
3307         (can_unroll_loop_p): Pass eni_size_weights to
3308         tree_num_loop_insns.
3309         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
3310         Pass eni_size_weights to estimate_num_insns.
3311         * tree.h (init_inline_once): Export.
3312         * toplev.c (backend_init): Call init_inline_once.
3313         * cgraphunit.c (cgraph_process_new_functions,
3314         cgraph_analyze_function): Pass eni_inlining_weights to
3315         estimate_num_insns.
3316         * ipa-inline.c (compute_inline_parameters): Ditto.
3317         * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
3318         to estimate_num_insns.
3319         (try_unroll_loop_completely): Pass eni_size_weights to
3320         tree_num_loop_insns.
3321         * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
3322         ot estimate_num_insns.
3323         * tree-ssa-loop-prefetch.c: Include tree-inline.h.
3324         (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
3325         * tree-inline.c (eni_inlining_weights, eni_size_weights,
3326         eni_time_weights): New variables.
3327         (init_inline_once): Initialize them.
3328         (struct eni_data): Mew.
3329         (estimate_num_insns_1, estimate_num_insns): Use weights.
3330         * tree-inline.h (struct eni_weights_d): New.
3331         (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
3332         (estimate_num_insns): Declaration changed.
3333         * cfgloop.h (tree_num_loop_insns): Declaration changed.
3334         * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
3335         tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.
3336
3337 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3338
3339         * tree-data-ref.c (conflict_fn): Assert that the number of affine
3340         relations in the conflict function is valid.
3341
3342 2007-01-27  Ian Lance Taylor  <iant@google.com>
3343
3344         * common.opt: Add fstrict-overflow.
3345         * opts.c (decode_options): Set flag_strict_overflow if -O2.
3346         * flags.h (TYPE_OVERFLOW_WRAPS): Define.
3347         (TYPE_OVERFLOW_UNDEFINED): Define.
3348         (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
3349         Replace all uses.
3350         * tree.h (TYPE_TRAP_SIGNED): Don't define.
3351         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
3352         (fold_negate_expr): Likewise.
3353         (make_range): Likewise.
3354         (extract_muldiv_1): Likewise.
3355         (maybe_canonicalize_comparison): Likewise.
3356         (fold_comparison): Likewise.
3357         (fold_binary): Likewise.
3358         (tree_expr_nonnegative_p): Likewise.
3359         (tree_expr_nonzero_p): Likewise.
3360         * tree-vrp.c (compare_values): Likewise.
3361         (extract_range_from_binary_expr): Likewise.
3362         (extract_range_from_unary_expr): Likewise.
3363         * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
3364         Likewise.
3365         (nowrap_type_p): Likewise.
3366         * tree-scalar-evolution.c (simple_iv): Likewise.
3367         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
3368         (build_range_check): Likewise.
3369         (extract_muldiv_1): Likewise.
3370         (fold_comparison): Likewise.
3371         * tree-vrp.c (vrp_int_const_binop): Likewise.
3372         (extract_range_from_unary_expr): Likewise.
3373         * convert.c (convert_to_integer): Likewise.
3374         * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
3375         (fold_comparison): Likewise.
3376         (fold_binary): Likewise.
3377         * optabs.c (optab_for_tree_code): Likewise.
3378         * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
3379         * simplify-rtx.c (simplify_const_relational_operation): Check
3380         flag_strict_overflow and flag_trapv.
3381         (simplify_const_relational_operation): Likewise.
3382         * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
3383         (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
3384         -fstrict-overflow.
3385
3386 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3387
3388         * tree.c (tree_fold_gcd): Delete.
3389         * tree.h (tree_fold_gcd): Remove prototype.
3390         * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
3391         test whether one constant integer is a multiple of another.  Instead
3392         call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
3393         * fold-const.c (multiple_of_p):  We've determined both TOP and
3394         BOTTOM are integer constants so we can call int_const_binop directly
3395         instead of the more generic const_binop.
3396
3397 2007-01-27  Roger Sayle  <roger@eyesopen.com>
3398
3399         * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
3400         1*X check that the constant hasn't overflowed, to preserve the
3401         TREE_OVERFLOW bit.
3402         (round_up): Provide an efficient implementation when rouding-up an
3403         INTEGER_CST to a power-of-two.
3404
3405 2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3406
3407         * doc/sourcebuild.texi: Add comma for clarity.
3408         * doc/extend.texi: Fix some typos.