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* loop-iv.c (implies_p): Detect additional cases where A implies B.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-02-24  Bernd Schmidt  <bernd.schmidt@analog.com>
2
3         * loop-iv.c (implies_p): Detect additional cases where A implies B.
4         (determine_max_iter): Take additional LOOP arg; all callers changed.
5         Lose broken logic dealing with PLUS.  Try to limit the upper bound by
6         one using simplifications.
7
8 2007-02-23  DJ Delorie  <dj@redhat.com>
9
10         * doc/tm.h (BIGGEST_ALIGNMENT): Clarify the purpose of this macro.
11
12 2007-02-23  Mike Stump  <mrs@apple.com>
13
14         * tlink.c (scan_linker_output): Parse linker messages from
15         darwin9's linker better.
16
17 2007-02-23  Steve Ellcey  <sje@cup.hp.com>
18
19         PR debug/29614
20         * varpool.c (varpool_assemble_pending_decls):  Set
21         varpool_last_needed_node to null.
22
23 2007-02-23  DJ Delorie  <dj@redhat.com>
24
25         * config/i386/i386.c (ix86_data_alignment): Don't specify an
26         alignment bigger than the object file can handle.
27
28 2007-02-23  Uros Bizjak  <ubizjak@gmail.com>
29
30         PR target/30825
31         * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32,
32         zero_extendsidi2_rex64): Penalize MMX register<->memory moves.
33         (*movsf_1): Penalize MMX moves.
34
35 2007-02-23  Bernd Schmidt  <bernd.schmidt@analog.com>
36
37         * config/bfin/bfin.md (doloop_end): Fail for loops that can iterate
38         2^32-1 or more times unless flag_unsafe_loop_optimizations.
39
40         * loop-iv.c (determine_max_iter): Moved in front of its sole user.
41
42 2007-02-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
43
44         * builtins.c (fold_builtin_logb, fold_builtin_significand): New.
45         (fold_builtin_1): Use them.
46         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
47         BUILT_IN_SIGNIFICAND.
48
49 2007-02-23  H.J. Lu  <hongjiu.lu@intel.com>
50
51         * config/i386/i386.c (bdesc_1arg): Initialize
52         IX86_BUILTIN_MOVSHDUP and IX86_BUILTIN_MOVSLDUP with
53         "__builtin_ia32_movshdup" and "__builtin_ia32_movsldup".
54         (ix86_init_mmx_sse_builtins): Remove IX86_BUILTIN_MOVSHDUP
55         and IX86_BUILTIN_MOVSLDUP.
56
57 2007-02-22  Paolo Bonzini  <bonzini@gnu.org>
58
59         PR rtl-optimization/30841
60         * fwprop.c (propagate_rtx_1): Accept a VOIDmode replacement address.
61
62 2007-02-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
63
64         * builtins.c (fold_builtin_frexp): New.
65         (fold_builtin_2): Use it.
66
67 2007-02-22  Mark Mitchell  <mark@codesourcery.com>
68
69         * doc/invoke.texi (Spec Files): Document getenv spec function.
70
71         * gcc.c (getenv_spec_function): New function.
72         (static_spec_functions): Add it.
73         * config/vxworks.h (VXWORKS_TARGET_DIR): Remove.
74         (VXWORKS_ADDITIONAL_CPP_SPEC): Use getenv to find the VxWorks
75         header files.
76
77 2007-02-22  Michael Matz  <matz@suse.de
78
79         PR c++/29433
80         * dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
81         (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.
82
83 2007-02-22  Ian Lance Taylor  <iant@google.com>
84
85         PR debug/30898
86         * dwarf2out.c (concatn_mem_loc_descriptor): New static function.
87         (mem_loc_descriptor): Call it.
88
89 2007-02-22  Zdenek Dvorak  <dvorakz@suse.cz>
90             Ira Rosen  <irar@il.ibm.com>
91
92         * tree-data-ref.c (ptr_ptr_may_alias_p): Take alias sets into account.
93
94 2007-02-22  Ira Rosen  <irar@il.ibm.com>
95
96         PR tree-optimization/30843
97         * tree-vect-transform.c (vect_transform_loop): Remove strided scalar 
98         stores only after all the group is vectorized.
99
100 2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>
101
102         PR tree-optimization/30858
103         * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
104         in the reduction cycle have a single use in the loop.
105         * tree-vectorizer.h (relevant): Add documentation.
106
107 2007-02-20  Mike Stump  <mrs@apple.com>
108
109         * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
110         * configure: Regenerate.
111
112 2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>
113
114         Change the defaults of some parameters and options.
115         * config/spu/spu-protos.h (spu_optimization_options): Declare.
116         * config/spu/spu.c (spu_optimization_options): Add.
117         (spu_override_options): Change params in spu_optimization_options.
118         * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.
119
120         Register 127 is only 16 byte aligned when used as a frame pointer.
121         * config/spu/spu-protos.h (spu_init_expanders): Declare.
122         * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
123         HARD_FRAME_POINTER_REGNUM.
124         (spu_legitimate_address):  Use regno_aligned_for_reload.
125         (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
126         aligned when frame_pointer_needed is true.
127         (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
128         to 8 bits.
129         * config/spu/spu.h (INIT_EXPANDERS): Define.
130
131         Make sure shift and rotate instructions have valid immediate operands.
132         * config/spu/predicates.md (spu_shift_operand): Remove.
133         * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
134         * config/spu/constraints.md (W, O): Extend range.
135         * config/spu/spu.md (umask, nmask): Define.
136         (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
137         lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
138         rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
139         rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
140         spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
141         (lshr<mode>3_reg):  Fix rtl description.
142
143         Make sure mulhisi immediate operands are valid.
144         * config/spu/predicates.md (imm_K_operand): Add.
145         * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.
146
147         Generate constants using fsmbi and andi.
148         * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
149         (print_operand, spu_split_immediate, classify_immediate,
150         fsmbi_const_p): Handle IC_FSMBI2.
151
152         Correctly handle a CONST_VECTOR containing symbols.
153         * config/spu/spu.c (print_operand): Handle HIGH correctly.
154         (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
155         (immediate_load_p): Allow symbols that use 2 instructions to create.
156         (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
157         with symbols when flag_pic is set.
158         (const_vector_immediate_p): New.
159         (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
160         accept a CONST_VECTOR with symbols.
161         (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
162         accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
163         correctly.
164         * config/spu/spu.md (high, low): Delete.
165         (low_<mode>): Define.
166
167         Remove INTRmode and INTR_REGNUM, which didn't work.
168         * config/spu/spu.c (spu_conditional_register_usage): Remove reference
169         of INTR_REGNUM.
170         * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
171         set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
172         peephole2 pattern): Don't use INTR or 131.
173         (movintrcc): Delete.
174         * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
175         CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
176         * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
177         (UNSPEC_SET_INTR): Add.
178         * config/spu/spu-modes.def (INTR): Remove.
179
180         More accurate warnings about run-time relocations.
181         * config/spu/spu.c (reloc_diagnostic): Test in_section.
182
183         Correctly warn about immediate arguments to specific intrinsics.
184         * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
185         (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
186         the instruction predicate.
187
188         Fix tree check errors with latest update.
189         * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
190         CALL_EXPR_ARG.
191         (spu_expand_builtin): Use CALL_EXPR_FN.
192
193         Add missing specific intrinsics.
194         * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
195         si_bislede.
196         * config/spu/spu_internals.h: Ditto.
197
198         Fix incorrect operand modifiers.
199         * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
200         * config/spu/spu.md (xor<mode>3):  Change %S to %J.
201
202         Optimize one case of zero_extend of a vec_select.
203         * config/spu/spu.md (_vec_extractv8hi_ze):  Add.
204
205         Accept any immediate for hbr.
206         * config/spu/spu.md (hbr):  Change s constraints to i.
207
208 2007-02-21  Paul Brook  <paul@codesourcery.com>
209
210         * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
211         condexec_count when skipping USE and CLOBBER.
212
213 2007-02-21  Nick Clifton  <nickc@redhat.com>
214
215         * common.opt (Warray-bounds): Add Warning attribute.
216         (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
217         Likewise.
218         (fsized-zeroes): Add Optimization attribute.
219         (fsplit-wide-types, ftree-scev-cprop): Likewise.
220         * c.opt (Wc++0x-compat): Add Warning attribute.
221
222 2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>
223
224         PR middle-end/30761
225         * reload1.c (eliminate_regs_in_insn): In the single_set special
226         case, attempt to re-recognize the insn before falling back to
227         having reload fix it up.
228
229 2007-02-20  Eric Christopher  <echristo@gmail.com>
230
231         * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
232         Rewrite accordingly.
233         (frv_read_iacc_argument): Ditto.
234         (frv_expand_set_builtin): Take a call instead of arglist, update for
235         above changes.
236         (frv_expand_unop_builtin): Ditto.
237         (frv_expand_binop_builtin): Ditto.
238         (frv_expand_cut_builtin): Ditto.
239         (frv_expand_binopimm_builtin): Ditto.
240         (frv_expand_voidbinop_builtin): Ditto.
241         (frv_expand_int_void2arg): Ditto.
242         (frv_expand_prefetches): Ditto.
243         (frv_expand_voidtriop_builtin): Ditto.
244         (frv_expand_voidaccop_builtin): Ditto.
245         (frv_expand_load_builtin): Ditto.
246         (frv_expand_store_builtin): Ditto.
247         (frv_expand_mdpackh_builtin): Ditto.
248         (frv_expand_mclracc_builtin): Ditto.
249         (frv_expand_mrdacc_builtin): Ditto.
250         (frv_expand_mwtacc_builtin): Ditto.
251         (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
252         calls for above.
253
254 2007-02-20  Janis Johnson  <janis187@us.ibm.com>
255
256         * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
257         * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
258         cmpb instruction.
259         (HAVE_GAS_DFP): Check for assembler support of decimal floating
260         point instructions.
261         * configure: Regenerate.
262         * config.in: Regenerate.
263         * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
264         * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
265         masks to power6 and power6x and to POWERPC_MASKS.
266         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
267         _ARCH_PWR6.
268         * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
269         * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
270         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
271         Access PROTOTYPE as variable, not mask.
272
273 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
274
275         * rtl.h (remove_reg_equal_equiv_notes): New prototype.
276         * rtlanal.c (remove_reg_equal_equiv_notes): New function.
277         * combine.c (adjust_for_new_dest): Use it.
278         * postreload.c (reload_combine): Likewise.
279
280 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
281
282         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
283         notes on an insn with multiple sets, even if single_set returns
284         non-NULL for that insn.
285
286 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
287
288         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
289         scalbn and scalbln.
290
291 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
292
293         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
294         if user didn't pass it.
295         * config/i386/darwin.h (CC1_SPEC): Likewise.
296         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
297         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
298         -mmacosx-version-min.
299
300 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
301             Uros Bizjak  <ubizjak@gmail.com>
302
303         * optabs.h (enum optab_index): Add new OTI_scalb.
304         (scalb_optab): Define corresponding macro.
305         * optabs.c (init_optabs): Initialize scalb_optab.
306         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
307         patterns.
308         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
309         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
310         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
311         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
312         flag_unsafe_math_optimizations is set.
313
314         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
315         to implement scalbf, scalb and scalbl built-ins as inline x87
316         intrinsics.
317
318 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
319             DJ Delorie <dj@redhat.com>
320
321         PR other/30824
322         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
323         (diagnostic_report_diagnostic): ... here, and turn them into real
324         errors. If warnings are inhibited, no need to do anything.
325
326 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
327
328         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
329         better code generation.
330
331 2007-02-20  Ben Elliston  <bje@au.ibm.com>
332
333         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
334
335 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
336
337         * config/alpha/alpha.c, config/alpha/alpha.md,
338         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
339         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
340         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
341         config/arm/lib1funcs.asm: Follow spelling conventions.
342
343         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
344         config/fr30/fr30.md, config/i386/i386.h,
345         config/iq2000/iq2000.h, config/iq2000/predicates.md,
346         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
347         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
348         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
349         config/rs6000/altivec.md, config/rs6000/rs6000.c,
350         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
351         config/sparc/sparc.c, config/sparc/sparc.h,
352         config/sparc/sparc.md, config/spu/constraints.md,
353         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
354         conventions.
355
356 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
357
358         PR target/29943
359         * varasm.c (use_blocks_for_decl_p): Return false for decls with
360         alias attribute.
361
362 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
363
364         * doc/invoke.texi (-ftree-lrs): Remove.
365
366 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
367
368         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
369         NULL.
370
371 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
372
373         * config/ia64/ia64.c (ia64_expand_builtin): Use the
374         new CALL_EXPR_FN macro for retrieving the function
375         declaration of the input expression.
376
377 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
378
379         * c.opt (Waddress): New.
380         * common.opt (Walways-true): Delete.
381         (Wstring-literal-comparison): Delete.
382         * doc/invoke.texi (Warning Options): Delete -Walways-true and
383         -Wstring-literal-comparison. Add -Waddress.
384         (Waddress): New.
385         (Walways-true): Delete.
386         (Wstring-literal-comparison): Delete.
387         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
388         consistently instead of -Walways-true in example.
389         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
390         * c-typeck.c (parser_build_binary_op): Replace
391         -Wstring-literal-comparison and -Walways-true with -Waddress.
392         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
393         with -Waddress.
394
395 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
396
397         * tree-cfg.c (dump_function_to_file): Be prepared for functions
398         without DECL_STRUCT_FUNCTION initialized.
399
400 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
401
402         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
403         due to calls to functions taking pointers as parameters.
404
405 2007-02-19  Richard Henderson  <rth@redhat.com>
406
407         PR debug/29558
408         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
409         in memory.
410
411 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
412
413         * config/s390/s390.c (s390_call_saved_register_used,
414         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
415         accessed to the new scheme.
416
417 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
418
419         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
420         (cris_print_index, cris_print_operand, cris_print_operand_address)
421         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
422         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
423         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
424         GET_CODE () == xxx.
425         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
426         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
427         GO_IF_LEGITIMATE_ADDRESS): Ditto.
428         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
429         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
430         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
431         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
432         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
433         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
434         (uminsi3, call, call_value): Ditto.
435         (define_split: indir_to_reg_split, unnamed): Ditto.
436
437 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
438
439         PR tree-optimization/30975
440         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
441         wrong assert.
442
443 2007-02-18  Eric Christopher  <echristo@gmail.com>
444
445         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
446         Remove use of arglist.
447         (mips_expand_builtin): Remove use of arglist, pass in expr.
448         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
449         (mips_expand_builtin_movtf): Ditto.
450         (mips_expand_builtin_compare): Ditto.
451
452 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
453
454         * tree-sra.c (sra_build_assignment): Replace assertion
455         checking with a comment explaining why it can't be done.
456
457 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
458
459         PR middle-end/30833
460         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
461         during CALL_EXPR representation conversion.
462         * tree-ssa-propagate.c (set_rhs): Likewise.
463
464 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
465
466         * tree-sra.c (sra_build_assignment): Disable assertion checking
467         for now.
468
469 2007-02-18  Roger Sayle  <roger@eyesopen.com>
470
471         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
472         instead of calling build2 with a GIMPLE_MODIFY_STMT.
473         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
474         Likewise.
475         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
476         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
477         gimplify_init_ctor_eval_range, gimple_push_cleanup,
478         gimplify_omp_for, gimplify_omp_atomic_pipeline,
479         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
480         force_gimple_operand): Likewise.
481         * ipa-cp.c (constant_val_insert): Likewise.
482         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
483         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
484         perfect_nestify): Likewise.
485         * langhooks.c (lhd_omp_assignment): Likewise.
486         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
487         lower_copyprivate_clauses, lower_send_clauses,
488         lower_send_shared_vars, expand_parallel_call,
489         expand_omp_for_generic, expand_omp_for_static_nochunk,
490         expand_omp_for_static_chunk, expand_omp_sections,
491         lower_omp_single_copy, lower_omp_for_lastprivate,
492         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
493         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
494         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
495         Likewise.
496
497 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
498
499         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
500         config/sh/sh.md: Follow spelling conventions.
501
502         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
503         config/frv/predicates.md: Follow spelling conventions.
504
505         * config/m68k/linux-unwind.h: Fix a comment typo.
506         * target.h: Follow spelling conventions.
507
508 2007-02-18  Roger Sayle  <roger@eyesopen.com>
509
510         PR rtl-optimization/28173
511         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
512         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
513         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
514         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
515         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
516
517 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
518
519         * builtins.c (fold_builtin_load_exponent): New.
520         (fold_builtin_2): Use it.
521
522 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
523
524         PR rtl-optimization/30773
525         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
526         if we fail to attach a REG_EQUIV note.
527
528 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
529             Roger Sayle  <roger@eyesopen.com>
530
531         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
532
533 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
534
535         * calls.c (initialize_argument_information): Pass original EXP
536         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
537         code to split complex arguments here, as part of initializing the
538         ARGS array.
539         (expand_call): Remove code that builds a list of arguments and
540         inserts implicit arguments into it.  Instead, just count how many
541         implicit arguments there will be so we can determine the size of
542         the ARGS array, and let initialize_argument_information do the work.
543         (split_complex_values): Delete unused function.
544
545 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
546
547         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
548
549 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
550
551         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
552         for arg pointer based indexed addressing.
553
554 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
555
556         * config/ia64/ia64.h, config/ia64/ia64.md,
557         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
558         spelling conventions.
559
560 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
561
562         * config/m68k/m68k.c (split_di): New.
563         * config/m68k/m68k-protos.h: Declare split_di.
564         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
565           Improve predicate handling and split constant shifts.
566
567 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
568
569         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
570         parameter for register bitfield operations, general predicates
571         cleanup
572
573 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
574
575         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
576         * config/m68k/linux-unwind.h: New file.
577
578 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
579
580         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
581         config/i386/athlon.md, config/ia64/ia64.md,
582         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
583         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
584         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
585         tree-ssa-loop-niter.c, tree-vect-analyze.c,
586         tree-vect-transform.c: Fix comment typos.
587
588 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
589
590         * sched-deps.c (find_insn_list): Remove.
591         * sched-int.h: Remove the prototype for find_insn_list.
592
593 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
594
595         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
596         to linker.
597         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
598         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
599         darwin_rs6000_override_options.
600         (C_COMMON_OVERRIDE_OPTIONS): Expect
601         darwin_macosx_version_min to be non-NULL always.
602         (TARGET_C99_FUNCTIONS): Likewise.
603         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
604         (DARWIN_MINVERSION_SPEC): New.
605         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
606         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
607         to cc1*.
608         (DARWIN_MINVERSION_SPEC): New.
609         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
610         value.
611         * config/darwin-c.c (darwin_cpp_builtins): Expect
612         darwin_macosx_version_min to be non-NULL always.
613
614         * config/rs6000/rs6000.c: Clean up trailing whitespace.
615
616 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
617
618         * config/i386/i386.h (x86_use_xchgb): New.
619         (TARGET_USE_XCHGB): New macro.
620         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
621         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
622         Split after reload into bswaphi for shifts of 8.
623         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
624         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
625         or when optimizing for size.
626
627 2007-02-16  Richard Guenther  <rguenther@suse.de>
628             Christian Bruel  <christian.bruel@st.com>
629
630         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
631         DECLs but prefer SSA_NAMEs over DECLs.
632
633 2007-02-16  Richard Guenther  <rguenther@suse.de>
634
635         * tree-flow-inline.h (single_imm_use_p): Remove.
636         (zero_imm_uses_p): Likewise.
637         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
638         instead of single_imm_use_p.
639         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
640         zero_imm_uses_p.
641
642 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
643
644         PR other/27843
645         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
646         nested double- and backquotes.
647
648 2007-02-15  Roger Sayle  <roger@eyesopen.com>
649
650         PR middle-end/30391
651         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
652         should be unreachable.
653         (build2_stat): Allow construction of MODIFY_EXPR at any time.
654         For the time being redirect GIMPLE_MODIFY_STMT to the new
655         (renamed) build_gimple_modify_stmt_stat.
656         (build2_gimple_stat): Rename to...
657         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
658         Always build a GIMPLE_MODIFY_STMT node.
659         * tree.h (build2_gimple, build2_gimple_stat): Delete.
660         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
661         declarations.
662
663         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
664         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
665         * tree-complex.c (set_component_ssa_name, expand_complex_move,
666         expand_complex_div_wide): Likewise.
667         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
668         * tree-ssa-loop-im.c (schedule_sm): Likewise.
669         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
670         * tree-ssa-loop-manip.c (create_iv): Likewise.
671         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
672         abs_replacement): Likewise.
673         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
674         realify_fake_stores): Likewise.
675
676         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
677         node rather than a GIMPLE_MODIFY_STMT node.
678         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
679         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
680         Likewise.
681         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
682         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
683         GIMPLE_MODIFY_STMT.
684
685 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
686
687         PR middle-end/30433
688         * fold-const.c (fold_comparison): Add back the
689         folding of constant complex comparisions.
690
691 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
692
693         PR middle-end/30729
694         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
695         effects unknown to this function, return early.
696
697 2007-02-15  Ian Lance Taylor  <iant@google.com>
698
699         * lower-subreg.c (move_eh_region_note): New static function.
700         (resolve_simple_move): Call it.
701         (decompose_multiword_subregs): Track blocks for which we resolve a
702         simple move which is also a control flow insn.  Pass them to
703         find_many_sub_basic_blocks.
704         (pass_lower_subreg): Add TODO_verify_flow.
705         (pass_lower_subreg2): Likewise.
706
707 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
708             Brooks Moses  <brooks.moses@codesourcery.com>
709             Lee Millward  <lee.millward@codesourcery.com>
710
711         * tree.h (enum tree_code_class): Add tcc_vl_exp.
712         (VL_EXP_CLASS_P): New.
713         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
714         TREE_CODE_LENGTH.
715         (TREE_OPERAND_CHECK_CODE): Likewise.
716         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
717         (TREE_RTL_OPERAND_CHECK): Likewise.
718         (tree_operand_check_failed): Make second parameter the whole tree
719         instead of its code.  Fixed callers.
720         (VL_EXP_CHECK): New.
721         (TREE_OPERAND_LENGTH): New.
722         (VL_EXP_OPERAND_LENGTH): New.
723         (CALL_EXPR_FN): New.
724         (CALL_EXPR_STATIC_CHAIN): New.
725         (CALL_EXPR_ARGS): New.
726         (CALL_EXPR_ARG): New.
727         (call_expr_nargs): New.
728         (CALL_EXPR_ARGP): New.
729         (build_nt_call_list): Declare.
730         (build_vl_exp_stat): Declare.
731         (build_vl_exp): New.
732         (build_call_list): Declare.
733         (build_call_nary): Declare.
734         (build_call_valist): Declare.
735         (build_call_array): Declare.
736         (call_expr_arg): Declare.
737         (call_expr_argp): Declare.
738         (call_expr_arglist): Declare.
739         (fold_build_call_list): Declare.
740         (fold_build_call_list_initializer): Declare.
741         (fold_call_expr): Declare to replace fold_builtin.
742         (fold_builtin_fputs): Update to agree with modified definition.
743         (fold_builtin_strcpy): Likewise.
744         (fold_builtin_strncpy): Likewise.
745         (fold_builtin_memory_chk): Likewise.
746         (fold_builtin_stxcpy_chk): Likewise.
747         (fold_builtin_strncpy_chk): Likewise.
748         (fold_builtin_next_arg): Likewise.
749         (fold_build_call_expr): Declare.
750         (fold_builtin_call_list): Declare.
751         (fold_builtin_call_valist): Declare.
752         (build_call_expr): Declare.
753         (validate_arglist): Update to agree with modified definition.
754         (tree_operand_length): New.
755         (call_expr_arg_iterator): New.
756         (init_call_expr_arg_iterator): New.
757         (next_call_expr_arg): New.
758         (first_call_expr_arg): New.
759         (more_call_expr_args_p): New.
760         (FOR_EACH_CALL_EXPR_ARG): New.
761
762         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
763         and tcc_gimple_stmt.
764         (tree_code_size): Update documentation.  Use sizeof (tree) rather
765         than sizeof (char *).
766         (tree_size): Likewise.  Add case for tcc_vl_exp.
767         (tree_node_structure): Add case for tcc_vl_exp.
768         (contains_placeholder_p): Likewise.
769         (substitute_in_expr): Likewise.
770         (substitute_placeholder_in_expr): Likewise.
771         (stabilize_reference_1): Likewise.
772         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
773         to diagnose breakage of this interface for constructing CALL_EXPRs.
774         (build_nt): Add similar assertion here.
775         (build_nt_call_list): New.
776         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
777         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
778         TREE_CODE_LENGTH.
779         (get_callee_fndecl): Use new CALL_EXPR accessors.
780         (tree_operand_check_failed): Change parameters to pass entire node
781         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
782         (process_call_operands): New.
783         (build_vl_exp_stat): New.
784         (build_call_list): New.
785         (build_call_nary): New.
786         (build_call_valist): New.
787         (build_call_array): New.
788         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
789         (call_expr_arglist): New.
790
791         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
792         tcc_vl_exp instead of a fixed-size tcc_expression.
793
794         * doc/c-tree.texi (CALL_EXPR): Document new representation and
795         accessors for CALL_EXPRs.
796         (AGGR_INIT_EXPR): Likewise.
797
798 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
799             Brooks Moses  <brooks.moses@codesourcery.com>
800             Lee Millward  <lee.millward@codesourcery.com>
801
802         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
803         (expand_builtin_nonlocal_goto): Change parameter to be entire
804         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
805         (expand_builtin_prefetch): Likewise.
806         (expand_builtin_classify_type): Likewise.
807         (mathfn_built_in): Return NULL_TREE instead of 0.
808         (expand_errno_check): Use new CALL_EXPR accessors.
809         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
810         Return NULL_RTX instead of 0.
811         (expand_builtin_mathfn_2): Likewise.
812         (expand_builtin_mathfn_3): Likewise.
813         (expand_builtin_interclass_mathfn): Likewise.
814         (expand_builtin_sincos): Likewise.
815         (expand_builtin_cexpi): Likewise.
816         (expand_builtin_int_roundingfn): Likewise.
817         (expand_builtin_int_roundingfn_2): Likewise.
818         (expand_builtin_pow): Likewise.
819         (expand_builtin_powi): Likewise.
820         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
821         of arglist, fixing callers appropriately.  Use new CALL_EXPR
822         accessors and constructors.  Return NULL_RTX instead of 0.
823         (expand_builtin_strstr): Likewise.
824         (expand_builtin_strchr): Likewise.
825         (expand_builtin_strrchr): Likewise.
826         (expand_builtin_strpbrk): Likewise.
827         (expand_builtin_memcpy): Likewise.
828         (expand_builtin_mempcpy): Likewise.
829         (expand_builtin_mempcpy_args): New.
830         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
831         (expand_builtin_memmove_args): New.
832         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
833         (expand_movstr): Likewise.
834         (expand_builtin_strcpy): Likewise.
835         (expand_builtin_strcpy_args): New.
836         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
837         (expand_builtin_strncpy): Likewise.
838         (expand_builtin_memset): Likewise.
839         (expand_builtin_memset_args): New.
840         (expand_builtin_bzero): Similarly to expand_builtin_memset.
841         (expand_builtin_memcmp): Likewise.
842         (expand_builtin_strcmp): Likewise.
843         (expand_builtin_strncmp): Likewise.
844         (expand_builtin_strcat): Likewise.
845         (expand_builtin_strncat): Likewise.
846         (expand_builtin_strspn): Likewise.
847         (expand_builtin_strcspn): Likewise.
848         (expand_builtin_args_info): Likewise.
849         (expand_builtin_va_start): Likewise.
850         (gimplify_va_arg_expr): Likewise.
851         (expand_builtin_va_end): Likewise.
852         (expand_builtin_va_copy): Likewise.
853         (expand_builtin_frame_address): Likewise.
854         (expand_builtin_alloca): Likewise.
855         (expand_builtin_bswap): Likewise.
856         (expand_builtin_unop): Likewise.
857         (expand_builtin_fputs): Likewise.
858         (expand_builtin_expect): Likewise.
859         (expand_builtin_fabs): Likewise.
860         (expand_builtin_copysign): Likewise.
861         (expand_builtin_printf): Likewise.
862         (expand_builtin_fprintf): Likewise.
863         (expand_builtin_sprintf): Likewise.
864         (expand_builtin_init_trampoline): Likewise.
865         (expand_builtin_signbit): Likewise.
866         (expand_builtin_fork_or_exec): Likewise.
867         (expand_builtin_sync_operation): Likewise.
868         (expand_builtin_compare_and_swap): Likewise.
869         (expand_builtin_lock_test_and_set): Likewise.
870         (expand_builtin_lock_release): Likewise.
871         (expand_builtin): Likewise.
872         (builtin_mathfn_code): Likewise.
873
874         (fold_builtin_constant_p): Pass call arguments individually instead
875         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
876         accessors and constructors.  Return NULL_TREE instead of 0.
877         (fold_builtin_expect): Likewise.
878         (fold_builtin_classify_type): Likewise.
879         (fold_builtin_strlen): Likewise.
880         (fold_builtin_nan): Likewise.
881         (integer_valued_real_p): Likewise.
882         (fold_trunc_transparent_mathfn): Likewise.
883         (fold_fixed_mathfn): Likewise.
884         (fold_builtin_cabs): Likewise.
885         (fold_builtin_sqrt): Likewise.
886         (fold_builtin_cbrt): Likewise.
887         (fold_builtin_cos): Likewise.
888         (fold_builtin_cosh): Likewise.
889         (fold_builtin_tan): Likewise.
890         (fold_builtin_sincos): Likewise.
891         (fold_builtin_cexp): Likewise.
892         (fold_builtin_trunc): Likewise.
893         (fold_builtin_floor): Likewise.
894         (fold_builtin_ceil): Likewise.
895         (fold_builtin_round): Likewise.
896         (fold_builtin_int_roundingfn): Likewise.
897         (fold_builtin_bitop): Likewise.
898         (fold_builtin_bswap): Likewise.
899         (fold_builtin_logarithm): Likewise.
900         (fold_builtin_hypot): Likewise.
901         (fold_builtin_pow): Likewise.
902         (fold_builtin_powi): Likewise.
903         (fold_builtin_exponent): Likewise.
904         (fold_builtin_memset): Likewise.
905         (fold_builtin_bzero): Likewise.
906         (fold_builtin_memory_op): Likewise.
907         (fold_builtin_bcopy): Deleted; call site changed to invoke
908         fold_builtin_memory_op directly.
909         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
910         (fold_builtin_strncpy): Likewise.
911         (fold_builtin_memcmp): Likewise.
912         (fold_builtin_strcmp): Likewise.
913         (fold_builtin_strncmp): Likewise.
914         (fold_builtin_signbit): Likewise.
915         (fold_builtin_copysign): Likewise.
916         (fold_builtin_isascii): Likewise.
917         (fold_builtin_toascii): Likewise.
918         (fold_builtin_isdigit): Likewise.
919         (fold_builtin_fabs): Likewise.
920         (fold_builtin_abs): Likewise.
921         (fold_builtin_fmin_fmax): Likewise.
922         (fold_builtin_carg): Likewise.
923         (fold_builtin_classify): Likewise.
924         (fold_builtin_unordered_cmp): Likewise.
925
926         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
927         New functions split out from fold_builtin_1.
928         (fold_builtin_n): New.
929         (fold_builtin_varargs): New.
930         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
931         instead.
932         (fold_call_expr): New.
933         (build_function_call_expr): Rewrite to use new helper function.
934         (fold_builtin_call_list): New.
935         (build_call_expr): New.
936         (fold_builtin_call_valist): New.
937         (rewrite_call_expr): New.
938         (validate_arg): New.
939         (validate_arglist): Change parameter to be entire CALL_EXPR instead
940         of an arglist.  Change return type to bool.  Use new CALL_EXPR
941         accessors.
942
943         (fold_builtin_strstr):  Pass call arguments individually instead
944         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
945         accessors and constructors.  Return NULL_TREE instead of 0.
946         (fold_builtin_strchr): Likewise.
947         (fold_builtin_strrchr): Likewise.
948         (fold_builtin_strpbrk): Likewise.
949         (fold_builtin_strcat): Likewise.
950         (fold_builtin_strncat): Likewise.
951         (fold_builtin_strspn): Likewise.
952         (fold_builtin_strcspn): Likewise.
953         (fold_builtin_fputs): Likewise.
954         (fold_builtin_next_arg): Likewise.
955         (fold_builtin_sprintf): Likewise.
956
957         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
958         NULL_RTX instead of 0.
959         (expand_builtin_memory_chk): Likewise.
960         (maybe_emit_chk_warning): Likewise.
961         (maybe_emit_sprintf_chk_warning): Likewise.
962
963         (fold_builtin_object_size): Pass call arguments individually instead
964         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
965         accessors and constructors.  Return NULL_TREE instead of 0.
966         (fold_builtin_memory_chk): Likewise.
967         (fold_builtin_stxcpy_chk): Likewise.
968         (fold_builtin_strncpy_chk): Likewise.
969         (fold_builtin_strcat_chk): Likewise.
970         (fold_builtin_strcat_chk): Likewise.
971         (fold_builtin_strncat_chk): Likewise.
972         (fold_builtin_sprintf_chk): Likewise.
973         (fold_builtin_snprintf_chk): Likewise.
974         (fold_builtin_printf): Likewise.
975         (fold_builtin_vprintf): Likewise.
976
977         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
978         constructors.
979         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
980         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
981         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
982         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
983         (fold_unary): Likewise.
984         (fold_binary): Likewise.
985         (fold_ternary): Remove CALL_EXPR case, since they are no longer
986         ternary expressions.
987         (fold): Add logic for tcc_vl_exp.
988         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
989         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
990         (fold_build3_stat): Add assertion to flag broken interface for
991         constructing CALL_EXPRs.
992         (fold_build_call_list): New.
993         (fold_build_call_list_initializer): New.
994         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
995         constructors.
996         (fold_strip_sign_ops): Likewise.
997
998 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
999             Brooks Moses  <brooks.moses@codesourcery.com>
1000             Lee Millward  <lee.millward@codesourcery.com>
1001
1002         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
1003         accessors and dump arguments explicitly.
1004
1005         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
1006         TREE_CODE_LENGTH.
1007         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
1008         explicitly.
1009         (print_call_name): Use new CALL_EXPR accessors.
1010
1011         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
1012         CALL_EXPR arguments explicitly instead of as a list.  Use
1013         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1014
1015         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
1016         (vrp_visit_stmt): Likewise.
1017
1018         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
1019         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
1020         TREE_CODE_LENGTH.
1021         (force_move_till_expr): Likewise.
1022
1023         * targhooks.c (default_external_stack_protect_fail): Use
1024         build_call_expr instead of build_function_call_expr.
1025         (default_hidden_stack_protect_fail): Likewise.
1026
1027         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
1028         build the call.
1029
1030         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
1031         and walk arguments explicitly.
1032
1033         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
1034         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1035         (expand_simple_operations): Likewise.
1036         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
1037
1038         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
1039         of TREE_CODE_LENGTH.
1040         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
1041
1042         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
1043         instead of TREE_CODE_LENGTH.
1044
1045         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
1046         (tree_ic_transform): Likewise.
1047         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
1048         parameter instead of arglist.  Fix callers.
1049         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
1050         (tree_stringops_transform): Likewise.
1051         (tree_indirect_call_to_profile): Likewise.
1052         (tree_stringops_values_to_profile): Likewise.
1053
1054         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
1055         (eliminate_tail_call): Likewise.
1056
1057         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
1058
1059         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
1060         Use TREE_OPERAND_LENGTH and generalize to handle any number of
1061         operands.
1062         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
1063
1064         * omp-low.c (build_omp_barrier): Use build_call_expr.
1065         (lower_rec_input_clauses): Likewise.
1066         (lower_reduction_clauses): Likewise.
1067         (expand_parallel_call): Likewise.
1068         (maybe_catch_exception): Likewise.
1069         (expand_omp_for_generic): Likewise.
1070         (expand_omp_for_static_nochunk): Likewise.
1071         (expand_omp_sections): Likewise.
1072         (lower_omp_single_simple): Likewise.
1073         (lower_omp_single_copy): Likewise.
1074         (lower_omp_master): Likewise.
1075         (lower_omp_ordered): Likewise.
1076         (lower_omp_critical): Likewise.
1077
1078         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
1079         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
1080
1081         * tree-gimple.c (is_gimple_call_addr): Fix doc.
1082         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
1083         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
1084
1085         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
1086         and generalize to handle any number of operands.
1087         (chrec_contains_undetermined): Likewise.
1088         (tree_contains_chrecs): Likewise.
1089         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
1090
1091         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
1092
1093         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
1094         fold_call_expr instead of fold_builtin.
1095         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
1096         match declarations there.
1097         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
1098         updates.
1099
1100         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
1101         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1102
1103         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
1104         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
1105
1106         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
1107         accessors.
1108
1109         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
1110         (execute_cse_sincos): Use new CALL_EXPR accessors.
1111
1112         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
1113
1114         * gimple-low.c (lower_function_body): Use build_call_expr.
1115         (lower_builtin_setjmp): Likewise.
1116
1117         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
1118         (set_storage_via_libcall): Likewise.
1119         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
1120         instead of TREE_CODE_LENGTH.
1121         (expand_expr_real_1): Use new CALL_EXPR accessors.
1122
1123         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
1124         generalize to handle any number of operands.
1125         (TB_parent_eq): Likewise.
1126
1127         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
1128         (strip_builtin_expect): Likewise.
1129
1130         * function.c (gimplify_parameters): Use build_call_expr.
1131
1132         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
1133         instead of TREE_CODE_LENGTH.
1134
1135         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
1136         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
1137
1138         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
1139         iterators.
1140
1141         * gimplify.c (build_stack_save_restore): Use build_call_expr.
1142         (gimplify_decl_expr): Likewise.
1143         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
1144         Use new CALL_EXPR iterators.
1145         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
1146         (gimplify_modify_expr_to_memset): Likewise.
1147         (gimplify_variable_sized_compare): Likewise.
1148         (gimplify_omp_atomic_fetch_op): Likewise.
1149         (gimplify_omp_atomic_pipeline): Likewise.
1150         (gimplify_omp_atomic_mutex): Likewise.
1151         (gimplify_function_tree): Likewise.
1152
1153         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
1154         (call_expr_flags): Likewise.
1155         (expand_call): Likewise.
1156
1157         * except.c (expand_builtin_eh_return_data_regno): Pass entire
1158         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
1159         accessors.
1160
1161         * coverage.c (create_coverage): Use build_call_expr.
1162
1163         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
1164         (temp_call_expr_obstack): New.
1165         (pool_copy_list): Delete.
1166         (temp_copy_call_expr): New.
1167         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
1168         CALL_EXPR accessors.  Get rid of special goo for copying argument
1169         lists and use temp_copy_call_expr instead.
1170         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
1171         CALL_EXPR accessors.
1172         (create_expression_by_pieces): Likewise.  Use build_call_array
1173         to construct the result instead of fold_build3.
1174         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
1175         dealing with argument lists.
1176         (init_pre): Remove references to expression_node_pool and
1177         list_node_pool.  Init temp_call_expr_obstack instead.
1178         (fini_pre): Remove references to expression_node_pool and
1179         list_node_pool.
1180
1181         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
1182         and walk arguments explicitly instead of as a list.
1183
1184         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
1185         (mx_register_decls): Likewise.
1186         (mudflap_register_call): Likewise.
1187         (mudflap_finish_file): Likewise.
1188
1189         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
1190         (ipa_callsite_compute_param): Likewise.
1191
1192         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
1193         accessors and constructor.
1194
1195         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
1196         accessors and constructor.
1197         (convert_tramp_reference): Likewise.
1198         (convert_call_expr): Likewise.
1199         (finalize_nesting_tree_1): Likewise.
1200
1201         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
1202         accessors.
1203
1204         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
1205
1206         * tree-inline.c (initialize_inlined_parameters): Pass entire
1207         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
1208         accessors.
1209         (estimate_num_insns_1): Use new CALL_EXPR accessors.
1210         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
1211
1212         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
1213         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1214         (vectorizable_reduction): Likewise.
1215         (vectorizable_call): Use new CALL_EXPR iterators.
1216         (vectorizable_conversion): Use build_call_expr.
1217         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
1218         (vect_gen_widened_results_half): Use build_call_expr.
1219         (vect_setup_realignment): Likewise.
1220         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
1221
1222         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
1223         (pass_through_call): Likewise.
1224         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
1225         fold_builtin.
1226
1227         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
1228         (tree_gen_pow2_profiler): Likewise.
1229         (tree_gen_one_value_profiler): Likewise.
1230         (tree_gen_ic_func_profiler): Likewise.
1231         (tree_gen_average_profiler): Likewise.
1232         (tree_gen_ior_profiler): Likewise.
1233
1234         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
1235         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
1236         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1237
1238         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
1239         of TREE_CODE_LENGTH.
1240
1241         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
1242         of TREE_CODE_LENGTH.
1243
1244         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
1245         constructor.
1246         (convert_to_integer): Likewise.
1247
1248         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
1249         accessors.
1250
1251 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1252             Brooks Moses  <brooks.moses@codesourcery.com>
1253             Lee Millward  <lee.millward@codesourcery.com>
1254
1255         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
1256         accessors.
1257         * config/frv/frv.c (frv_expand_builtin): Likewise.
1258         * config/s390/s390.c (s390_expand_builtin): Likewise.
1259
1260         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
1261         (sparc_expand_builtin): Use new CALL_EXPR accessors.
1262
1263         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
1264         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
1265         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
1266         (ix86_expand_store_builtin): Likewise.
1267         (ix86_expand_unop_builtin): Likewise.
1268         (ix86_expand_unop1_builtin): Likewise.
1269         (ix86_expand_sse_compare): Likewise.
1270         (ix86_expand_sse_comi): Likewise.
1271         (ix86_expand_vec_init_builtin): Likewise.
1272         (ix86_expand_vec_ext_builtin): Likewise.
1273         (ix86_expand_vec_set_builtin): Likewise.
1274         (ix86_expand_builtin): Use new CALL_EXPR accessors.
1275
1276         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
1277         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
1278
1279         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
1280         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1281         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
1282
1283         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
1284         build_call_expr.
1285         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
1286         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
1287         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1288         (altivec_expand_abs_builtin): Likewise.
1289         (rs6000_expand_binop_builtin): Likewise.
1290         (altivec_expand_predicate_builtin): Likewise.
1291         (altivec_expand_lv_builtin): Likewise.
1292         (spe_expand_stv_builtin): Likewise.
1293         (altivec_expand_stv_builtin): Likewise.
1294         (rs6000_expand_ternop_builtin): Likewise.
1295         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
1296         (altivec_expand_st_builtin): Likewise.
1297         (altivec_expand_dst_builtin): Likewise.
1298         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
1299         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1300         (altivec_expand_vec_set_builtin): Likewise.
1301         (altivec_expand_vec_ext_builtin): Likewise.
1302         (altivec_expand_builtin): Use new CALL_EXPR accessors.
1303         (spe_expand_builtin): Likewise.
1304         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
1305         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1306         (spe_expand_evsel_builtin): Likewise.
1307         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
1308         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
1309
1310         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
1311         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1312         (arm_expand_unop_builtin): Likewise.
1313         (arm_expand_builtin): Use new CALL_EXPR accessors.
1314
1315         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
1316         accessors.
1317
1318         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
1319         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1320         (bfin_expand_unop_builtin): Likewise.
1321         (bfin_expand_builtin): Use new CALL_EXPR accessors.
1322
1323 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1324             Brooks Moses  <brooks.moses@codesourcery.com>
1325             Lee Millward  <lee.millward@codesourcery.com>
1326
1327         * c-semantics.c (build_stmt): Add internal diagnostic check.
1328
1329         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
1330         accessors.  Print arguments explicitly instead of as a list.
1331
1332         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
1333
1334         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
1335         (c_finish_omp_flish): Likewise.
1336
1337         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
1338         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
1339         instead of TREE_CODE_LENGTH.
1340         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
1341         (c_warn_unused_result): Likewise.
1342
1343 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1344
1345         PR c/26494
1346         * doc/invoke.texi (Warning Options): Remove
1347         -Werror-implicit-function-declaration.
1348         (Wimplicit-function-declaration): Update description.
1349         * opts.c (common_handle_option): Move handling of -Werror=* to...
1350         (enable_warning_as_error): ...here.
1351         * opts.h (enable_warning_as_error): Declare.
1352         * c-decl.c (implicit_decl_warning): Unless
1353         -Wno-implicit-function-declaration is given, emit a pedwarn if
1354         -std=c99 or emit a warning if -Wimplicit-function-declaration.
1355         * c.opt (Wimplicit-function-declaration): Replace
1356         mesg_implicit_function_declaration with
1357         warn_implicit_function_declaration.
1358         * c-opts.c (c_common_handle_option):
1359         -Werror-implicit-function-declaration is exactly equal as
1360         -Werror=implicit-function-declaration.
1361         (set_Wimplicit): Replace mesg_implicit_function_declaration with
1362         warn_implicit_function_declaration.
1363         (c_common_post_options): -Wimplict-function-declaration is enabled
1364         by default by -std=c99, otherwise is disabled by default.
1365         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
1366
1367 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1368
1369         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
1370         DECL on the rhs to a DECL on the lhs for debug info purposes if the
1371         former is ignored but not the latter.
1372
1373 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1374
1375         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
1376         is made and the reference doesn't use the alias set of its type,
1377         do not create the temporary using that type.
1378
1379 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
1380
1381         * jump.c: Remove prototypes for delete_computation and
1382         delete_prior_computation.
1383
1384 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1385
1386         * jump.c (get_label_after): Delete.
1387         (get_label_before, delete_computation, delete_jump,
1388         delete_prior_computation, follow_jumps): Move...
1389         * reorg.c (delete_computation, delete_prior_computation): ... here...
1390         (get_label_before, delete_jump): ... making these static ...
1391         (follow_jumps): ... and simplifying this since it only runs after
1392         reload.
1393         * rtl.h (get_label_after, get_label_before, delete_jump,
1394         follow_jumps): Delete prototypes.
1395
1396 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1397
1398         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1399
1400 2007-02-15  Nick Clifton  <nickc@redhat.com>
1401
1402         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
1403         order to prevent it from being munged by the target.
1404
1405 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
1406
1407         * config/i386/i386.md: Remove misleading comment.
1408
1409 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1410
1411         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
1412         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
1413         invalid patterns.
1414
1415 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1416
1417         * tree-sra.c (instantiate_missing_elements): Canonicalize
1418         bit-field types.
1419         (sra_build_assignment): New.
1420         (generate_copy_inout, generate_element_copy,
1421         generate_element_zero, generate_one_element_init): Use it.
1422
1423 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1424
1425         * tree-sra.c (instantiate_missing_elements): Canonicalize
1426         bit-field types.
1427         (sra_build_assignment): New.
1428         (generate_copy_inout, generate_element_copy,
1429         generate_element_zero, generate_one_element_init): Use it.
1430
1431 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1432
1433         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
1434         limbo die nodes.
1435
1436 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
1437
1438         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
1439         types as aggregates not scalars.
1440         * function.c (assign_stack_temp_for_type): Likewise.
1441
1442 2007-02-14  Roger Sayle  <roger@eyesopen.com>
1443             Zdenek Dvorak  <dvorakz@suse.cz>
1444
1445         * tree-dump.c (dump_switch_p_1): Require exact match of the option
1446         name.
1447
1448 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
1449
1450         * passes.c (next_pass_1): Clear the next field of the copied
1451         pass structure.
1452
1453 2007-02-14  Richard Henderson  <rth@redhat.com>
1454
1455         * tree-sra.c (early_sra): New.
1456         (decl_can_be_decomposed_p): Deny va_list if early_sra.
1457         (tree_sra_early, pass_sra_early): New.
1458         * tree-pass.h (pass_sra_early): Declare.
1459         * passes.c (init_optimization_passes): Use it.
1460
1461 2007-02-14  Richard Guenther  <rguenther@suse.de>
1462
1463         * flags.h (issue_strict_overflow_warning): Convert to a macro.
1464
1465 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
1466
1467          PR tree-optimization/30771
1468         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
1469         also phi nodes.
1470         (vect_analyze_operations): Induction phis can now be marked as
1471         used_in_loop.
1472         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
1473         Update documentation accordingly.
1474
1475 2007-02-14  Nick Clifton  <nickc@redhat.com>
1476
1477         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
1478         most 3 arguments are supported.
1479         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
1480
1481 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
1482
1483         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1484         Ensure dst->current is valid.
1485
1486 2007-02-13  Paul Brook  <paul@codesourcery.com>
1487
1488         * config.gcc: Add arm*-*-uclinux-*eabi.
1489         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
1490         (SUBTARGET_EXTRA_LINK_SPEC): Define.
1491         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
1492         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
1493         (LINK_SPEC): Define.
1494         (LIB_SPEC): Define.
1495         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
1496         register.
1497         * config/arm/uclinux-eabi.h: New file.
1498         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
1499         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
1500         based targets.
1501
1502 2007-02-13  Ian Lance Taylor  <iant@google.com>
1503
1504         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
1505         * flags.h (warn_strict_overflow): Declare.
1506         (enum warn_strict_overflow_code): Define.
1507         (issue_strict_overflow_warning): New static inline function.
1508         * opts.c (warn_strict_overflow): New variable.
1509         (common_handle_option): Handle OPT_Wstrict_overflow and
1510         OPT_Wstrict_overflow_.
1511         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
1512         OPT_Wall.
1513         * fold-const.c: Include intl.h.
1514         (fold_deferring_overflow_warnings): New static variable.
1515         (fold_deferred_overflow_warning): New static variable.
1516         (fold_deferred_overflow_code): New static variable.
1517         (fold_defer_overflow_warnings): New function.
1518         (fold_undefer_overflow_warnings): New function.
1519         (fold_undefer_and_ignore_overflow_warnings): New function.
1520         (fold_deferring_overflow_warnings_p): New function.
1521         (fold_overflow_warning): New static function.
1522         (make_range): Add strict_overflow_p parameter.  Change all
1523         callers.
1524         (extract_muldiv, extract_muldiv_1): Likewise.
1525         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
1526         tree_expr_nonnegative_p.
1527         (fold_negate_expr): Call fold_overflow_warning.
1528         (fold_range_test): Likewise.
1529         (fold_comparison): Likewise.
1530         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
1531         instead of tree_expr_nonnegative_p.
1532         (tree_expr_nonnegative_warnv_p): Rename from
1533         tree_expr_nonnegative_p, add strict_overflow_p parameter.
1534         (tree_expr_nonnegative_p): New function.
1535         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
1536         strict_overflow_p parameter.
1537         (tree_expr_nonzero_p): New function.
1538         * passes.c (verify_interpass_invariants): New static function.
1539         (execute_one_pass): Call it.
1540         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
1541         warnings.
1542         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
1543         (estimate_numbers_of_iterations): Likewise.
1544         (scev_probably_wraps_p): Likewise.
1545         * tree-ssa-ccp.c: Include "toplev.h".
1546         (evaluate_stmt): Defer fold overflow warnings until we know we are
1547         going to optimize.
1548         (struct fold_stmt_r_data): Add stmt field.
1549         (fold_stmt_r): Defer fold overflow warnings until we know we
1550         optimized.
1551         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
1552         (fold_stmt_inplace): Likewise.
1553         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
1554         (cleanup_control_expr_graph): Defer fold overflow warnings until
1555         we know we are going to optimize.
1556         * tree-cfg.c (fold_cond_expr_cond): Likewise.
1557         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
1558         Likewise.
1559         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
1560         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
1561         * tree-ssa-loop-manip.c (create_iv): Likewise.
1562         * c-typeck.c (build_conditional_expr): Likewise.
1563         (build_binary_op): Likewise.
1564         * tree-vrp.c (vrp_expr_computes_nonzero): Call
1565         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
1566         (extract_range_from_unary_expr): Likewise.
1567         * simplify-rtx.c (simplify_const_relational_operation): Warn when
1568         assuming that signed overflow does not occur.
1569         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
1570         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
1571         (fold_defer_overflow_warnings): Declare.
1572         (fold_undefer_overflow_warnings): Declare.
1573         (fold_undefer_and_ignore_overflow_warnings): Declare.
1574         (fold_deferring_overflow_warnings_p): Declare.
1575         (tree_expr_nonzero_warnv_p): Declare.
1576         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
1577         of warning options.
1578         (Warning Options): Document -Wstrict-overflow.
1579         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
1580         (tree-ssa-ccp.o): Likewise.
1581         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
1582         (fold-const.o): Depend on intl.h.
1583
1584 2007-02-13  Ian Lance Taylor  <iant@google.com>
1585
1586         PR middle-end/30751
1587         * lower-subreg.c (resolve_simple_move): Decompose subregs in
1588         addresses.
1589
1590 2007-02-13  Stuart Hastings  <stuart@apple.com>
1591
1592         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
1593
1594 2007-02-13  Richard Henderson  <rth@redhat.com>
1595
1596         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
1597         handled_component_p before looking for the indirect_ref.
1598
1599 2007-02-13  Richard Henderson  <rth@redhat.com>
1600
1601         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
1602         remove flags clobber.
1603         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
1604         (bswaphi_lowpart): New.
1605         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
1606         remove TARGET_BSWAP test.  Delete expander of the same name.
1607
1608         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
1609         (expand_unop): Use them.
1610
1611 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
1612
1613         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
1614         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
1615         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
1616         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
1617         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
1618         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
1619         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
1620         assembler dialect choice from asm templates.
1621
1622 2007-02-12  Richard Henderson  <rth@redhat.com>
1623
1624         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
1625         (fixuns_trunc<SSEMODEF>si2): Use it.
1626         * config/i386/sse.md (vec_setv4sf_0): Export.
1627         * config/i386/i386.c (ix86_build_const_vector): Export.
1628         (ix86_split_convert_uns_si_sse): Rename from
1629         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
1630         * config/i386/i386-protos.h: Update.
1631
1632 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1633
1634         PR c/29521
1635         * c-typeck.c (c_finish_return): Improve warning message.
1636
1637 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1638
1639         * alias.c (find_symbolic_term): Delete unused function.
1640
1641 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
1642
1643         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
1644         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
1645         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
1646
1647 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1648
1649         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
1650         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
1651         the function, temporarily point the debug interface to the null one.
1652
1653 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1654
1655         * dwarf2out.c (round_up_to_align): New static function.
1656         (field_byte_offset): Use it to round the offset.
1657
1658 2007-02-12  Richard Henderson  <rth@redhat.com>
1659
1660         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
1661         (inswl_const): Export.
1662
1663 2007-02-12  Richard Henderson  <rth@redhat.com>
1664
1665         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
1666         result mode of the libcall, convert back to outmode.
1667
1668 2007-02-12  Roger Sayle  <roger@eyesopen.com>
1669
1670         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
1671         (bswapdi2): New define_expand to implement 32-bit implementation.
1672
1673 2007-02-12  Nick Clifton  <nickc@redhat.com>
1674
1675         * doc/invoke.texi (Overall Options): Document --help=.
1676         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
1677         (cc1_options): Pass --help= on to cc1.
1678         (display_help): Add description of --help=.
1679         (process_command): Add code to handle --help=.  Allow translated
1680         --help and --target-help switches to be passed on to compiler
1681         sub-process.
1682         (main): Remove unused if statement.
1683         * opts.c (columns): Remove.
1684         (LEFT_COLUMN): Define.
1685         (wrap_help): Add columns argument.
1686         (print_filtered_help): Change parameters to be an include bitmask,
1687         an exclude bitmask, an any bitmask and the column width.  Move the
1688         code to display the params list here.  Add code to display the
1689         status of options rather than their descriptions if the quiet flag
1690         is not active.
1691         (print_specific_help): Change parameters to be an include bitmask,
1692         an exclude bitmask and an any bitmask.  Move code to look up the
1693         column width here.  Decide upon the title for an options listing.
1694         (common_handle_options): Add code to handle --help=.  Adapt code
1695         for --help and --target-help to use the revised form of the
1696         print_specific_help function.
1697         (print_help): Delete.
1698         (print_param_help): Delete.
1699         (print_switch): Delete.
1700         * opts.h (cl_lang_count): Add prototype.
1701         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
1702         CL_MAX_OPTION_CLASS): New defines.
1703         * optc-gen.awk: Add construction of cl_lang_count.
1704         * c.opt: Add Warning attribute to warning options and Optimization
1705         attribute to optimization options.
1706         * common.opt: Likewise.
1707         Add --help=.
1708         Add -fhelp and -ftarget-help as aliases for the transformed --help
1709         and --target-help options.
1710         * opt-functions.awk: Add code to handle Warning and Optimization
1711         attributes.
1712
1713 2007-02-12  Richard Henderson  <rth@redhat.com>
1714
1715         * config/alpha/constraints.md: New file.
1716         * config/alpha/alpha.c: Include tm-constrs.h.
1717         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
1718         alpha_extra_constraint): Remove.
1719         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
1720         * config/alpha/alpha-protos.h: Update.
1721         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
1722         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
1723         (EXTRA_CONSTRAINT): Remove.
1724         * config/alpha/alpha.md: Include constraints.md.
1725         (adddi splitter): Use satisfies_constraint_*.
1726         * config/alpha/predicates.md (add_operand): Likewise.
1727         (sext_add_operand, addition_operation): Likewise.
1728
1729 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
1730
1731         PR tree-optimization/29145
1732         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
1733         in our handling of restrict qualified pointers.
1734
1735 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1736
1737         PR middle-end/7651
1738         * doc/invoke.texi (Wunused-value): Update description.
1739         (Wextra): Delete item.
1740         * opts.c (set_Wextra): Don't use the value of Wextra to set the
1741         value of Wunused-value.
1742         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
1743         (c_finish_stmt_expr): Don't check extra_warnings.
1744         (emit_side_effect_warnings): The caller is responsible to check
1745         warn_unused_value.
1746
1747 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1748             Matt Thomas  <matt@3am-software.com>
1749
1750         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
1751
1752 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1753
1754         * simplify-rtx.c (simplify_relational_operation_1): Optimize
1755         comparisons of POPCOUNT against zero.
1756         (simplify_const_relational_operation): Likewise.
1757
1758 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1759
1760         * doc/invoke.texi (Wextra): Delete outdated paragraph.
1761
1762 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1763
1764         * dwarf2out.c (root_type): Delete unused function.
1765
1766 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1767
1768         * genattrtab.c (contained_in_p): Delete unused function.
1769         (write_expr_attr_cache): Likewise.
1770
1771 2007-02-11  Jan Hubicka  <jh@suse.cz>
1772
1773         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
1774         previous patch.
1775
1776 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
1777
1778         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
1779         to add the REG_EQ* note.
1780         * see.c (see_merge_one_use_extension): Likewise.
1781         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
1782         turn REG_EQUAL notes into REG_EQUIV notes if the target
1783         register may have more than one set.
1784         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
1785         * gcse.c (try_replace_reg): Likewise.
1786         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
1787         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
1788         more than one REG_EQUIV note.
1789         * reload1.c (gen_reload): Use set_unique_reg_note.
1790
1791 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
1792
1793         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
1794         (ix86_builtin_conversion): New function.
1795
1796 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
1797
1798         PR target/29487
1799         * tree.h (DECL_REPLACEABLE_P): New macro.
1800         * except.c (set_nothrow_function_flags): Likewise.
1801
1802 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
1803             Ira Rosen  <irar@il.ibm.com>
1804             Dorit Nuzman  <dorit@il.ibm.com>
1805
1806         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
1807         * targhooks.c (default_builtin_vectorized_conversion): New.
1808         * targhooks.h (default_builtin_vectorized_function): New declaration.
1809         * target.h (struct vectorize): Add builtin_conversion field.
1810         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
1811         stmt_vec_info_type value.
1812         (vectorizable_conversion): New declaration.
1813         * tree-vect-analyze.c (vect_analyze_operations): Add
1814         vectorizable_conversion call.
1815         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
1816         * tree-vect-transform.c (vectorizable_conversion): New function.
1817         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
1818         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
1819         mode.
1820         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
1821         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
1822         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
1823         or ALTIVEC_BUILTIN_VCFSX.
1824
1825 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1826
1827         PR target/30634
1828         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
1829         CONST_DOUBLE and operand 0 is a hard register.
1830         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
1831         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
1832         is a hard floating-point register.
1833
1834 2007-02-10  Richard Henderson  <rth@redhat.com>
1835             Jakub Jelinek  <jakub@redhat.com>
1836             Alexandre Oliva  <aoliva@redhat.com>
1837
1838         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
1839         * builtin-types.def (BT_WORD): Make unsigned.
1840         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
1841         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
1842         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
1843         * c-decl.c (grokdeclarator): Don't error if !have_tls.
1844         * c-parser.c (c_parser_omp_threadprivate): Likewise.
1845         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
1846         emulated tls.
1847         * expr.c (emutls_var_address): New.
1848         (expand_expr_real_1): Expand emulated tls.
1849         (expand_expr_addr_expr_1): Likewise.
1850         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
1851         * output.h (emutls_finish): Declare.
1852         * toplev.c (compile_file): Call it.
1853         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
1854         address before wrapping in CONST.
1855         * varasm.c (emutls_htab, emutls_object_type): New.
1856         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
1857         (get_emutls_object_name, get_emutls_object_type): New.
1858         (get_emutls_init_templ_addr, emutls_decl): New.
1859         (emutls_common_1, emutls_finish): New.
1860         (assemble_variable): When emulating tls, swap decls; generate
1861         constructor for the emutls objects.
1862         (do_assemble_alias): When emulating tls, swap decl and target name.
1863         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
1864         for emulated tls.
1865         * varpool.c (decide_is_variable_needed): Look at force_output.
1866         Recurse for emulated tls.
1867         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
1868         with decide_is_variable_needed.
1869         * emutls.c: New file.
1870         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
1871         tls_object for real tls.
1872
1873 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1874
1875         PR rtl-optimization/29599
1876         * reload1.c (eliminate_regs_in_insn): Take the destination
1877         mode into account when computing the offset.
1878
1879 2007-02-09  Stuart Hastings  <stuart@apple.com>
1880             Richard Henderson  <rth@redhat.com>
1881
1882         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1883         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1884         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
1885         fixuns_truncdfhi2): New.
1886         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
1887         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
1888         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
1889         (floatunssidf2): Allow nonimmediate source.
1890         * gcc/config/i386/sse.md (movdi_to_sse): New.
1891         (vec_concatv2di): Drop '*'.
1892         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
1893         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1894         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
1895         New.
1896         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
1897         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1898         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
1899         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
1900         (ix86_build_signbit_mask): Fix decl of v, refactor to call
1901         ix86_build_const_vector.
1902         (x86_emit_floatuns): Rewrite.
1903
1904 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1905
1906         * genautomata.c (longest_path_length): Delete unused function.
1907         (struct state): Delete unused longest_path_length.
1908         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
1909         (get_free_state): Delete unused.
1910
1911 2007-02-09  Jan Hubicka  <jh@suse.cz>
1912
1913         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
1914         * doc/invoke.texi (inline-unit-growth): Update default value.
1915
1916         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
1917         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
1918         (rebuild_cgraph_edges): Likewise.
1919         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
1920         (dump_cgraph_node): Dump frequencies.
1921         (cgraph_clone_edge): Add frequency scales.
1922         (cgraph_clone_node): Add freuqnecy.
1923         * cgraph.h (cgraph_edge): Add freuqnecy argument.
1924         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
1925         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
1926         * tree-pass.h (TODO_rebuild_frequencies): New constant.
1927         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
1928         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
1929         (save_inline_function_body): Likewise.
1930         * ipa-inline.c: inluce rtl.h
1931         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
1932         (cgraph_edge_badness): Use frequencies.
1933         (cgraph_decide_recursive_inlining): Update clonning.
1934         (cgraph_decide_inlining_of_small_function): Dump frequency.
1935         * predict.c (estimate_bb_frequencies): Export.
1936         * predict.h (estimate_bb_frequencies): Declare.
1937         * tree-inline.c (copy_bb): Watch overflows.
1938         (expand_call_inline): Update call of cgraph_create_edge.
1939         (optimize_inline_calls): Use TODO flags to update frequnecies.
1940         * passes.h: Include predict.h
1941         (init_optimization_passes): Move profile ahead.
1942         (execute_function_todo): Handle TODO_rebuild_frequencies.
1943
1944 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1945
1946         * config/alpha/alpha.c (emit_insxl): Force the first operand of
1947         the insbl or inswl pattern into a register.
1948
1949 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1950
1951         * config/ia64/ia64.md (bswapdi2): New define_insn.
1952
1953 2007-02-09  Richard Henderson  <rth@redhat.com>
1954
1955         * config/i386/constraints.md (Ym): New constraint.
1956         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
1957         (movdi_1_rex64): Split sse and xmm general register moves from
1958         memory move alternatives.  Use conditional register constraints.
1959         (movsf_1, movdf_integer): Likewise.
1960         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
1961         (movdf_integer_rex64): New.
1962         (pushsf_rex64): Fix output constraints.
1963         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
1964         (sse2_stored): Likewise.
1965         (sse2_storeq_rex64): New.
1966         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
1967         amd and not generic.
1968         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
1969         for optimize_size.  Remove SF/DFmode hack.
1970
1971 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
1972
1973         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
1974         (bit_SSE4a): New.
1975
1976 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
1977             Richard Sandiford  <richard@codesourcery.com>
1978
1979         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
1980         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
1981         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
1982         m68k/t-mlib to tmake_file.
1983         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
1984         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
1985         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
1986         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
1987         variable is not empty, add t-$m68k_arch_family to tmake_file.
1988         Add t-mlibs to tmake_file.
1989         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
1990         * config/m68k/t-cf: New file.
1991         * config/m68k/t-m68k: Likewise.
1992         * config/m68k/t-mlibs: Likewise.
1993         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1994         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1995         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1996         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1997         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
1998         Delete.
1999         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
2000         (INSTALL_LIBGCC): Delete.
2001         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
2002         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
2003         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
2004         (M68K_MLIB_CPU): Define.
2005         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
2006         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
2007         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
2008
2009 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
2010             Richard Guenther  <rguenther@suse.de>
2011
2012         PR middle-end/23361
2013         * fold-const.c (fold_comparison): Handle obfuscated comparisons
2014         against INT_MIN/INT_MAX.
2015         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
2016         file if a loop is removed.
2017
2018 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
2019
2020         * calls.c (store_one_arg): Pass correct alignment to
2021         emit_push_insn for non-BLKmode values.
2022         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
2023         unaligned stack slot via a suitably aligned slot.
2024
2025 2007-02-08  DJ Delorie  <dj@redhat.com>
2026
2027         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
2028         warnings.
2029         (legal_subregs): Use unsigned char, make const.
2030         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
2031
2032 2007-02-08  Paul Brook  <paul@codesourcery.com>
2033
2034         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
2035         special interworking needed.
2036
2037 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
2038
2039         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
2040         conditional to __SSE2__.
2041         (Entries below should have been added to first ChangeLog
2042         entry for amdfam10 dated 2007-02-05)
2043         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
2044         defined.
2045         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
2046         defined.
2047         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
2048         defined.
2049
2050 2007-02-08  DJ Delorie  <dj@redhat.com>
2051
2052         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
2053         * config/m32c/m32c.c (legal_subregs): New.
2054         (m32c_illegal_subreg_p): New.
2055         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
2056         unsupported subregs of hard regs.
2057
2058 2007-02-08  Jan Hubicka  <jh@suse.cz>
2059
2060         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
2061         the same one; always update histograms.
2062
2063 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
2064
2065         * passes.c (init_optimization_passes): Tidy comment.
2066
2067 2007-02-08  Roger Sayle  <roger@eyesopen.com>
2068
2069         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
2070         strip zero_extend, bswap and rotates from POCOUNT's argument.
2071         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
2072         zero_extend and rotates from PARITY's argument.
2073         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
2074         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
2075         of an integer constant at compile-time.
2076
2077 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
2078
2079         PR 30562
2080         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
2081         Update all users.
2082         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
2083         users.
2084         (init_alias_info):
2085         * tree-ssa-live.c (remove_unused_locals): Do not remove
2086         TREE_ADDRESSABLE variables.
2087         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
2088         * tree-ssa-operands.c (add_virtual_operand): Remove argument
2089         FOR_CLOBBER.  Update all users.
2090         If VAR has an associated alias set, add a virtual operand for
2091         it if no alias is found to conflict with the memory reference.
2092
2093 2007-02-07  Jan Hubicka  <jh@suse.cz>
2094             Robert Kidd <rkidd@crhc.uiuc.edu>
2095
2096         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
2097
2098 2007-02-07  Ian Lance Taylor  <iant@google.com>
2099
2100         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
2101
2102 2007-02-07  Roger Sayle  <roger@eyesopen.com>
2103
2104         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
2105         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
2106         tablejumpdi, movsi_to_cr_one): Remove constraints from
2107         define_expand's match_operands.
2108
2109 2007-02-07  Roger Sayle  <roger@eyesopen.com>
2110
2111         * global.c (compute_regsets): Move declatation of "i" inside of
2112         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
2113
2114 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
2115
2116         PR c++/30703
2117         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
2118         of INDIRECT_REF <RESULT_DECL>.
2119
2120         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
2121
2122 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
2123             Kaz Kojima  <kkojima@gcc.gnu.org>
2124
2125         PR target/29746
2126         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
2127         properly.
2128         (sh_initialize_trampoline): Add parentheses to avoid a warning.
2129
2130 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2131
2132         * doc/loop.texi: Document possibility not to perform disambiguation
2133         of loops with multiple latches.
2134         * cfgloopmanip.c (alp_enum_p): Removed.
2135         (add_loop): Handle subloops.  Use get_loop_body_with_size.
2136         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
2137         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
2138         the new forwarder block.
2139         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
2140         Handle the case latch is NULL.
2141         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
2142         when marking loop exits.
2143         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
2144         be modified.
2145         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
2146         disambiguate_loops_with_multiple_latches.
2147         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
2148         before fix_loop_structure.
2149         * cfgloop.c: Include pointer-set.h and output.h.
2150         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
2151         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
2152         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
2153         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
2154         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
2155         disambiguate_multiple_latches, get_loop_body_with_size,
2156         disambiguate_loops_with_multiple_latches): New functions.
2157         (flow_loop_dump): Dump multiple latch edges.
2158         (flow_loop_nodes_find): Handle loops with multiple latches.
2159         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
2160         (glb_enum_p): Modified.
2161         (get_loop_body): Use get_loop_body_with_size.
2162         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
2163         (AVOID_CFG_MODIFICATIONS): New constant.
2164         (disambiguate_loops_with_multiple_latches, add_loop,
2165         get_loop_body_with_size): Declare.
2166         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
2167
2168 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
2169
2170         PR inline-asm/28686
2171         * global.c (compute_regsets): New function.
2172         (global_alloc): Refactored ELIMINABLE_REGSET
2173         and NO_GLOBAL_ALLOC_REGS computation out.
2174         (rest_of_handle_global_alloc): Call compute_regsets()
2175         for non-optimizing case.
2176
2177 2007-02-06  Richard Henderson  <rth@redhat.com>
2178
2179         * config/i386/constraints.md (Y2): Rename from Y.
2180         (Yi): New constraint.
2181         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
2182         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
2183         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
2184         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
2185         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
2186         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
2187         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
2188         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
2189         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
2190         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
2191         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
2192         vec_extractv2si_1): Change Y constraints to Y2.
2193         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
2194         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
2195         Change Y constraints to Y2.
2196         (sse2_loadld): Change Y constraints to x.
2197
2198 2007-02-06  Roger Sayle  <roger@eyesopen.com>
2199
2200         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
2201         (parity<mode>2): New define_expand using rs6000_emit_parity.
2202         * config/rs6000/rs6000.c (rs6000_emit_popcount,
2203         rs6000_emit_parity): New functions.
2204         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
2205         rs6000_emit_parity): Prototype here.
2206
2207 2007-02-06  Ian Lance Taylor  <iant@google.com>
2208
2209         * lower-subreg.c (simple_move_operand): Reject CONST.
2210         (resolve_clobber): Call validate_change rather than directly
2211         assigning to XEXP (pat, 0).
2212
2213 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2214
2215         * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
2216         (tree-ssa-reassoc.o): Add pointer-set.h dependency.
2217         (tree-cfg.o): Remove hashtab.h dependency.
2218
2219         * tree-ssa-loop-ivopts.c: Include pointer-set.h.
2220         (struct ivopts_data): Change niters to pointer_map_t.
2221         (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
2222         (niter_for_exit): Create pointer_map on demand.  Change for
2223         pointer_map API.
2224         (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
2225         (free_loop_data): Destroy data->niters if created and reset field.
2226         (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
2227         (tree_ssa_iv_optimize_loop): Check for presence of stale data.
2228
2229         * tree-ssa-reassoc.c: Include pointer-set.h.
2230         (bb_rank): Change to long *.
2231         (operand_rank): Change to pointer_map_t.
2232         (find_operand_rank): Return long, -1 if not found.  Declare as inline.
2233         (insert_operand_rank): Accept long.
2234         (operand_entry_hash, operand_entry_eq): Remove.
2235         (get_rank): Return long.  Adjust for changes above.
2236         (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
2237         and operand_rank.
2238         (fini_reassoc): Delete operand_rank with pointer_map_destroy.
2239
2240         * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
2241         (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
2242         (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
2243         is not NULL.
2244         (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
2245         directly since it cannot be NULL.
2246         (get_vi_for_tree): Rewrite for pointer_map API.
2247         (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
2248         (init_alias_vars): Create vi_for_tree as pointer_map.
2249         (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.
2250
2251         * tree-cfg.c: Don't include hashtab.h.
2252         (edge_to_cases): Declare as pointer_map.
2253         (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
2254         Delete.
2255         (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
2256         (start_recording_case_labels): Create edge_to_cases as pointer_map.
2257         (end_recoding_case_labels): Cleanup edge_to_cases manually before
2258         destroying it.
2259         (record_switch_edge): Delete.
2260         (get_cases_for_edge): Adjust for pointer_map API, inline
2261         record_switch_edge (rewritten for new API), remove goto.
2262
2263 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2264
2265         * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
2266         * tree-nested.c: Include pointer-set.h.
2267         (var_map_elt, var_map_eq, var_map_hash): Delete.
2268         (struct nesting_info): Remove GTY marker.  Change the two htab_t's
2269         to pointer_map_t's.
2270         (nesting_info_bitmap_obstack): New.
2271         (lookup_field_for_decl): Adjust for pointer_map API.
2272         (lookup_tramp_for_decl): Adjust for pointer_map API.
2273         (get_nonlocal_debug_decl): Adjust for pointer_map API.
2274         (get_local_debug_decl): Adjust for pointer_map API.
2275         (convert_nl_goto_reference): Adjust for pointer_map API.
2276         (convert_nl_goto_receiver): Adjust for pointer_map API.
2277         (create_nesting_tree): Create outside GGC space.  Create bitmap on
2278         the new obstack.  Create field_map and var_map as pointer_maps.
2279         (free_nesting_tree): Adjust for changes to create_nesting_tree.
2280         (root): Delete.
2281         (lower_nested_functions): Move root here, no need to NULL it.
2282         Initialize and release the obstack.
2283
2284 2007-02-06  Paolo Bonzini  <bonzini@gnu.org>
2285
2286         * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
2287         Remove prototypes and make them non-static.
2288         (struct tree_int_map): Remove.
2289         * tree.h (struct tree_int_map): Move here, turning TO into an
2290         unsigned int.
2291         (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.
2292
2293         * tree.h (TREE_COMPLEXITY): Remove.
2294         (struct tree_exp): Remove complexity field.
2295         * tree.c (build1_stat): Don't set it.
2296
2297 2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
2298             Victor Kaplansky  <victork@il.ibm.com>
2299
2300         * tree-vectorizer.c (vect_is_simple_use): Support induction.
2301         (vect_is_simple_reduction): Support reduction with induction as
2302         one of the operands.
2303         (vect_is_simple_iv_evolution): Fix formatting.
2304         * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
2305         formatting.  Don't mark induction phis for vectorization.
2306         (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
2307         * tree-vect-transform.c (get_initial_def_for_induction): New function.
2308         (vect_get_vec_def_for_operand): Support induction.
2309         (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
2310         induction case.
2311         (vectorizable_reduction): Support reduction with induction as one of
2312         the operands.
2313         (vectorizable_type_demotion): Use def-type of stmt argument rather
2314         than dummy def-type.
2315
2316         * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
2317         flag_tree_scev_cprop.
2318         * common.opt (tree-scev-cprop): New flag.
2319
2320         * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
2321         call to vect_get_new_vect_var.
2322
2323 2007-02-06  Ira Rosen  <irar@il.ibm.com>
2324
2325         * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
2326         vectype is not NULL.
2327         (vect_pattern_recog_1): Likewise.
2328
2329 2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2330
2331         * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
2332         (fold_negate_expr): Likewise.
2333
2334 2007-02-05  Alexandre Oliva  <aoliva@redhat.com>
2335
2336         PR debug/30189
2337         * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
2338         even if cv-qualification is the same.
2339
2340 2007-02-05  Geoffrey Keating  <geoffk@apple.com>
2341
2342         * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
2343         __enable_execute_stack on completion.
2344
2345 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2346
2347         * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
2348         athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
2349         athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
2350         athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
2351         athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
2352         athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
2353         athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
2354         athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.
2355
2356 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2357
2358         * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
2359         cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
2360         swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
2361         fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
2362         x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
2363         floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
2364         floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
2365         mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
2366         umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
2367         umuldi3_highpart_rex64, umulsi3_highpart_insn,
2368         umulsi3_highpart_zext, smuldi3_highpart_rex64,
2369         smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
2370         x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
2371         sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
2372         sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
2373         sqrtextenddfxf2_i387): Added amdfam10_decode.
2374
2375         * config/i386/athlon.md (athlon_idirect_amdfam10,
2376         athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
2377         athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
2378         athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
2379         athlon_ivector_store_amdfam10): New define_insn_reservation.
2380         (athlon_idirect_loadmov, athlon_idirect_movstore): Added
2381         amdfam10.
2382
2383 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2384
2385         * config/i386/athlon.md (athlon_call_amdfam10,
2386         athlon_pop_amdfam10, athlon_lea_amdfam10): New
2387         define_insn_reservation.
2388         (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
2389         athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
2390         athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.
2391
2392 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2393
2394         * config/i386/athlon.md (athlon_sseld_amdfam10,
2395         athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
2396         athlon_mmxssest_short_amdfam10): New define_insn_reservation.
2397
2398 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2399
2400         * config/i386/athlon.md (athlon_sseins_amdfam10): New
2401         define_insn_reservation.
2402         * config/i386/i386.md (sseins): Added sseins to define_attr type
2403         and define_attr unit.
2404         * config/i386/sse.md: Set type attribute to sseins for insertq
2405         and insertqi.
2406
2407 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2408
2409         * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
2410         ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
2411         ssecomi_load_amdfam10, ssecomi_amdfam10,
2412         sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
2413         define_insn_reservation.
2414         (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.
2415
2416 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2417
2418         * config/i386/athlon.md (cvtss2sd_load_amdfam10,
2419         cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
2420         cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
2421         cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
2422         cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
2423         cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
2424         define_insn_reservation.
2425
2426         * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
2427         cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
2428         cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
2429         cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
2430         cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.
2431
2432 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2433
2434         * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
2435         athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
2436         athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
2437         (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
2438         athlon_ssemul_load_k8): Added amdfam10.
2439
2440 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2441
2442         * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
2443         (x86_sse_unaligned_move_optimal): New variable.
2444
2445         * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
2446         m_AMDFAM10.
2447         (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
2448         for unaligned vector SSE double/single precision loads for AMDFAM10.
2449
2450 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2451
2452         * config/i386/i386.h (TARGET_AMDFAM10): New macro.
2453         (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
2454         Define TARGET_CPU_DEFAULT_amdfam10.
2455         (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
2456         (processor_type): Add PROCESSOR_AMDFAM10.
2457
2458         * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
2459         processor_type in config/i386/i386.h.
2460         Enable imul peepholes for TARGET_AMDFAM10.
2461
2462         * config.gcc: Add support for --with-cpu option for amdfam10.
2463
2464         * config/i386/i386.c (amdfam10_cost): New variable.
2465         (m_AMDFAM10): New macro.
2466         (m_ATHLON_K8_AMDFAM10): New macro.
2467         (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
2468         x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
2469         x86_promote_QImode, x86_integer_DFmode_moves,
2470         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2471         x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
2472         x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
2473         x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
2474         x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
2475         Enable/disable for amdfam10.
2476         (override_options): Add amdfam10_cost to processor_target_table.
2477         Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
2478         processor_alias_table.
2479         (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
2480         (ix86_adjust_cost): Add code for amdfam10.
2481
2482 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2483
2484         * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
2485         instruction set feature flag. Add new (-mpopcnt) flag for popcnt
2486         instruction. Add new SSE4A (-msse4a) instruction set feature flag.
2487         * config/i386/i386.h: Add builtin definition for SSE4A.
2488         * config/i386/i386.md: Add support for ABM instructions
2489         (popcnt and lzcnt).
2490         * config/i386/sse.md: Add support for SSE4A instructions
2491         (movntss, movntsd, extrq, insertq).
2492         * config/i386/i386.c: Add support for ABM and SSE4A builtins.
2493         Add -march=amdfam10 flag.
2494         * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
2495         * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
2496         and amdfam10.
2497         * doc/extend.texi: Add documentation for SSE4A builtins.
2498
2499 2007-02-05  Bob Wilson  <bob.wilson@acm.org>
2500
2501         * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.
2502
2503 2007-02-05  Richard Guenther  <rguenther@suse.de>
2504
2505         * tree-vectorizer.h (vectorizable_function): Add argument type
2506         argument, change return type.
2507         * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
2508         * tree-vect-transform.c (vectorizable_function): Handle extra
2509         argument, return vectorized function decl.
2510         (build_vectorized_function_call): Remove.
2511         (vectorizable_call): Handle calls with result and argument types
2512         differing.  Handle loop vectorization factor correctly.
2513         * targhooks.c (default_builtin_vectorized_function): Adjust for
2514         extra argument.
2515         * targhooks.h (default_builtin_vectorized_function): Likewise.
2516         * target.h (builtin_vectorized_function): Add argument type
2517         argument.
2518         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2519         extra argument, allow vectorizing of lrintf.
2520         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
2521         documentation of target hook.
2522
2523 2007-02-05  Hans-Peter Nilsson  <hp@axis.com>
2524
2525         PR target/30665
2526         * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
2527         ("*andhi_clear", andu (casesi+45)): For size-changed operand where
2528         memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.
2529
2530 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2531
2532         * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
2533         BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
2534         <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
2535         * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
2536         before canonicalizing sincos to cexpi.
2537         (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
2538
2539 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2540
2541         * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
2542         Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
2543         (alpha_init_builtins): Use alpha_add_builtins to process tables.
2544
2545 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2546
2547         * mips-tfile.c (initialize_init_file): Correct endianness test.
2548
2549 2007-02-05  Kazu Hirata  <kazu@codesourcery.com>
2550
2551         * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
2552         the 'y' constraint.
2553
2554 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2555
2556         * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
2557         saves in a PARALLEL before the register assignments.
2558
2559 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2560
2561         * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
2562         DWARF_FRAME_RETURN_COLUMN to be a general register.
2563         * dwarf2out.c (init_return_column_size): New function, split from...
2564         (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
2565         DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
2566         to be nongeneral registers.
2567         * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
2568         integer registers.
2569         (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
2570         (DWARF_ALT_FRAME_RETURN_COLUMN): Define.
2571
2572 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2573
2574         * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.
2575
2576 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2577
2578         * cfgloopmanip.c (loop_delete_branch_edge): Removed.
2579         (remove_path): Use can_remove_branch_p and remove_branch instead
2580         of loop_delete_branch_edge.
2581         * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
2582         (tree_transform_and_unroll_loop): Remove dead branches immediately.
2583         Update profile using scale_dominated_blocks_in_loop.
2584         * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
2585         * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
2586         (can_remove_branch_p, remove_branch): Declare.
2587         * tree-cfg.c (tree_can_remove_branch_p): New function.
2588         (tree_cfg_hooks): Add tree_can_remove_branch_p.
2589         * cfgrtl.c (rtl_can_remove_branch_p): New function.
2590         (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.
2591
2592 2007-02-05  Jan Hubicka  <jh@suse.cz>
2593
2594         PR middle-end/30696
2595         * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
2596         nodes in cgraph, don't remove offline copy of the function.
2597
2598 2007-02-04  Jan Hubicka  <jh@suse.cz>
2599
2600         * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
2601         vectors might cause maybe_lookup_element_for_expr to be called
2602         on non-sra-candidate.
2603
2604 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2605
2606         * config/bfin/bfin-modes.def, config/bfin/bfin.c,
2607         config/bfin/bfin.md, config/bfin/predicates.md: Follow
2608         spelling conventions.
2609
2610 2007-02-04  Richard Guenther  <rguenther@suse.de>
2611
2612         PR middle-end/30636
2613         * fold-const.c (try_move_mult_to_index): Make sure to not
2614         overflow one dimension of a multi-dimensional array access.
2615
2616 2007-02-04  Jan Hubicka  <jh@suse.cz>
2617
2618         * passes.c (init_optimization_passes): Reindent.
2619
2620 2007-02-04  Jan Hubicka  <jh@suse.cz>
2621             Eric Botcazou  <ebotcazou@adacore.com>
2622
2623         * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
2624         (execute_fixup_cfg): Break out the abnormal goto code.
2625         * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
2626         (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
2627         (optimize_inline_calls): Call make_nonlocal_label_edges.
2628
2629 2007-02-04  Jan Hubicka  <jh@suse.cz>
2630
2631         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
2632         true when something was changed.
2633         (rename_ssa_copies): When something was changed, do
2634         TODO_remove_unused_locals.
2635         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
2636         add TODO_remove_unused_locals when instruction was removed.
2637
2638 2007-02-04  Jan Hubicka  <jh@suse.cz>
2639
2640         * ipa-inline.c (try_inline): Improve debug output; work on already
2641         inline edges too.
2642         (cgraph_decide_inlining_incrementally): Indent; improve debug output;
2643         call try_inline for already inlined edges too when flattening;
2644         inline also functions that make callee growth but overall unit size
2645         reduce.
2646
2647 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2648
2649         * config/m32c/bitops.md, config/m32c/jump.md,
2650         config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
2651         config/m32r/m32r.h, config/m32r/m32r.md,
2652         config/m32r/predicates.md, config/m68hc11/larith.asm,
2653         config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
2654         config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
2655         config/mips/mips-protos.h, config/mips/mips.c,
2656         config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
2657         config/mn10300/mn10300.h, config/mn10300/predicates.md,
2658         config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
2659         spelling conventions.
2660
2661         * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
2662         Follow spelling conventions.
2663
2664 2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>
2665
2666         * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
2667         warn about C++0x compatibility.
2668
2669 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2670
2671         * config/h8300/h8300.c, config/h8300/h8300.h,
2672         config/h8300/h8300.md: Follow spelling conventions.
2673
2674 2007-02-03  Uros Bizjak  <ubizjak@gmail.com>
2675
2676         PR middle-end/30667
2677         * combine.c (try_combine): Do not substitute source operand
2678         with constants wider than 2 * HOST_BITS_PER_WIDE_INT.
2679
2680 2007-02-03  Jan Hubicka  <jh@suse.cz>
2681
2682         PR gcov-profile/30650
2683         * value-prof.c (stringop_block_profile): Fix handling of size counter;
2684         do not divide by zero for never executed counters.
2685         (tree_find_values_to_profile): Fix counters.
2686         * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2687
2688 2007-02-03  Ian Lance Taylor  <iant@google.com>
2689
2690         * lower-subreg.c (simple_move_operand): New static function,
2691         broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
2692         operands.
2693         (simple_move): Call simple_move_operand.
2694         (find_decomposable_subregs): Add special handling of MEMs.
2695         (can_decompose_p): Rename from cannot_decompose_p.  Reverse
2696         meaning of return value.  If we see a hard register, test whether
2697         it can store a word_mode value.  Change all callers.
2698
2699 2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2700
2701         * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
2702         ftrapv insns and expanders.
2703         (subdi3): Change define_expand operand 1 to arith11_operand, and
2704         operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
2705         pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
2706         handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
2707         respectively.
2708
2709         PR middle-end/30174
2710         * varasm.c (notice_global_symbol): Treat global objects as weak when
2711         flag_shlib is true.
2712
2713 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2714
2715         * emit-rtl.c (dconstpi): Delete.
2716         (dconstsqrt2): New.
2717         (init_emit_once): Delete dconstpi and init dconstsqrt2.
2718         * real.h (dconstpi): Delete.
2719         (dconstsqrt2): New.
2720         * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
2721         (fold_builtin_hypot): Likewise.
2722
2723 2007-02-03  Tom Tromey  <tromey@redhat.com>
2724
2725         PR driver/30246
2726         * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
2727         -gcoff3, -gxcoff3, -gvms3 implies -dD.
2728
2729 2007-02-03  Kazu Hirata  <kazu@codesourcery.com>
2730
2731         * c-decl.c, config/avr/avr.c, config/avr/avr.h,
2732         config/m68k/m68k.c, config/m68k/netbsd-elf.h,
2733         config/mn10300/mn10300.c, config/pdp11/pdp11.h,
2734         config/rs6000/cell.md, config/rs6000/darwin.h,
2735         config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
2736         config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
2737         jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
2738         tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
2739         typos.  Follow spelling conventions.
2740         * doc/invoke.texi: Follow spelling conventions.
2741
2742 2007-02-03  Roger Sayle  <roger@eyesopen.com>
2743
2744         * simplify-rtx.c (simplify_relational_operation_1): Implement some
2745         canonicalization transformations that attempt to simplify integer
2746         constant comparisons to become comparisons against zero.
2747
2748 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2749
2750         * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
2751         fabs(x)*sqrt(2).
2752         * fold-const.c (fold_binary): Fix comment typos.  Fold complex
2753         (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).
2754
2755 2007-02-02  Mike Stump  <mrs@apple.com>
2756
2757         * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
2758         * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
2759         (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
2760         generate a branch island.
2761
2762 2007-02-02  Bob Wilson  <bob.wilson@acm.org>
2763
2764         * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
2765         (xtensa_legitimate_address_p): New.
2766         (xtensa_legitimize_address): New.
2767         (xtensa_output_addr_const_extra): New.
2768         * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
2769         (BASE_REG_P): New.
2770         (REG_OK_FOR_BASE_P): Use BASE_REG_P.
2771         (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
2772         (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
2773         (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
2774         * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
2775         (xtensa_legitimize_address): New.
2776         (xtensa_output_addr_const_extra): New.
2777
2778 2007-02-02  Steve Ellcey  <sje@cup.hp.com>
2779
2780         * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
2781
2782 2007-02-02  Ian Lance Taylor  <iant@google.com>
2783
2784         * expmed.c (expand_divmod): Add comment.
2785
2786 2007-02-02  Kazu Hirata  <kazu@codesourcery.com>
2787
2788         * emit-rtl.c (renumber_insns): Remove.
2789         * flags.h: Remove the extern for flag_renumber_insns.
2790         * rtl.h: Remove the prototype for renumber_insns.
2791         * toplev.c (flag_renumber_insns): Remove.
2792
2793 2007-02-02  Hui-May Chang  <hm.chang@apple.com>
2794
2795         Revert for x86 darwin:
2796         2005-06-19  Uros Bizjak  <uros@kss-loka.si>
2797
2798         * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
2799         code before the following patch under TARGET_MACHO.
2800         (ix86_function_value_regno_p): Likewise.
2801
2802 2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2803
2804         * fold-const.c (negate_expr_p, fold_negate_expr): Handle
2805         COMPLEX_EXPR.
2806
2807 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2808
2809         PR target/29682
2810         * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
2811         general or fp registers.  Add comments.
2812         * config/ia64/ia64.md (reg_pred_prefix): Add comment.
2813
2814 2007-02-02  Paolo Bonzini  <bonzini@gnu.org>
2815
2816         * pointer-set.c (insert_aux): Only return insertion slot.
2817         (pointer_set_insert): Adjust.
2818         (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
2819         pointer_map_destroy, pointer_map_insert, pointer_map_contains,
2820         pointer_map_traverse): New.
2821         * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
2822         pointer_map_create,  pointer_map_destroy, pointer_map_insert,
2823         pointer_map_contains, pointer_map_traverse): Declare.
2824
2825 2007-02-02  Jakub Jelinek  <jakub@redhat.com>
2826
2827         PR middle-end/30473
2828         * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
2829         sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).
2830
2831 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2832
2833         * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
2834
2835         (struct _dep): New type.
2836         (dep_t): New typedef.
2837         (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
2838         (DEP_STATUS): New access macro.  The macro with the same name was
2839         renamed to DEP_LINK_STATUS.
2840         (dep_init): Declare function
2841
2842         (struct _dep_link): New type.
2843         (dep_link_t): New typedef.
2844         (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
2845         (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
2846         (DEP_LINK_STATUS): New macro.
2847         (debug_dep_links): New debug function.
2848
2849         (struct _deps_list): New type.
2850         (deps_list_t): New typedef.
2851         (DEPS_LIST_FIRST): New access macro.
2852         (FOR_EACH_DEP_LINK): New cycle macro.
2853         (create_deps_list, free_deps_list, delete_deps_list): Declare
2854         functions.
2855         (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
2856         (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
2857         (copy_deps_list_change_con): Ditto.
2858
2859         (move_dep_link): Declare function.
2860
2861         (struct _dep_node): New type.
2862         (dep_node_t): New typedef.
2863         (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
2864
2865         (struct haifa_insn_data.back_deps): New field to hold backward
2866         dependencies of the insn.
2867         (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
2868         to deps_list_t.
2869         (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
2870         Change its type to deps_list_t.
2871         (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
2872         (INSN_DEPEND): Rename to INSN_FORW_DEPS.
2873         (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
2874
2875         (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
2876
2877         (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.
2878
2879         (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
2880         all callers.
2881         (dep_cost): Declare.
2882
2883         * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
2884         (ds_to_dk, dk_to_ds): New functions.
2885
2886         (init_dep_1): New static function.
2887         (init_dep): New function.
2888         (copy_dep): New static function.
2889
2890         (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
2891         functions.
2892         (detach_dep_link): New static function.
2893         (move_dep_link): New function.
2894
2895         (dep_links_consistent_p, dump_dep_links): New static functions.
2896         (debug_dep_links): New debugging function.
2897
2898         (deps_obstack, dl_obstack, dn_obstack): New static variables.
2899
2900         (alloc_deps_list, init_deps_list): New static functions.
2901         (create_deps_list): New function.
2902         (clear_deps_list): New static function.
2903         (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
2904         (deps_list_consistent_p, dump_deps_list): New static functions.
2905         (debug_deps_list): New function.
2906         (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
2907         functions.
2908         (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
2909
2910         (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
2911         use new scheduler dependencies lists.
2912         (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
2913         (sched_analyze): Ditto.  Initialize dependencies lists.
2914         (add_forw_dep, compute_forward_dependences): Update to use new
2915         scheduler dependencies lists.
2916
2917         (init_dependency_caches): Init deps_obstack.
2918         (free_dependency_caches): Free deps_obstack.
2919
2920         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
2921         new scheduler dependencies lists.
2922         (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
2923         (add_back_forw_dep, delete_back_forw_dep): Ditto.
2924
2925         * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
2926         Update to use new scheduler dependencies lists.
2927         (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
2928         (debug_dependencies): Ditto.
2929         (schedule_region): Update comments.
2930
2931         * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
2932         scheduler dependencies lists.
2933         (schedule_ebb): Update comments.
2934
2935         * rtl.def (DEPS_LIST): Remove.
2936
2937         * lists.c (unused_deps_list): Remove.
2938         (free_list): Update assertions.
2939
2940         (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
2941         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2942
2943         * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
2944         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2945
2946         * haifa-sched.c (comments): Update.
2947         (insn_cost1): Remove.  Inline the code into insn_cost ().
2948         (insn_cost): Update to use new scheduler dependencies lists.  Move
2949         processing of the dependency cost to dep_cost ().
2950         (dep_cost): New function.  Use it instead of insn_cost () when
2951         evaluating cost of the dependency.  Use compatible interface to
2952         interact with the target.
2953         (priority): Update to use new scheduler dependencies lists.
2954         (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
2955         with greater number of insns that depend on the insn.
2956         (schedule_insn): Update to use new scheduler dependencies lists.  Add
2957         code to free backward dependencies lists.  Inline and optimize code
2958         from resolve_dep () - see PR28071.
2959         (ok_for_early_queue_removal): Update to use new scheduler dependencies
2960         lists.  Update call to targetm.sched.is_costly_dependence hook.
2961
2962         (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
2963         scheduler dependencies lists.
2964
2965         (resolve_dep): Remove.  Move the logic to schedule_insn ().
2966         (init_h_i_d): Initialize dependencies lists.
2967
2968         (process_insn_depend_be_in_spec): Rename to
2969         process_insn_forw_deps_be_in_spec.  Update to use new scheduler
2970         dependencies lists.
2971         (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
2972         Update to use new scheduler dependencies lists.
2973         (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
2974
2975         * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
2976         new scheduler dependencies lists.
2977         (build_intra_loop_deps): Ditto.
2978
2979         * target.h (struct _dep): Declare to use in
2980         gcc_target.sched.is_costly_dependence.
2981         (struct gcc_target.sched.adjust_cost): Fix typo.
2982         (struct gcc_target.sched.is_costly_dependence): Change signature to use
2983         single dep_t parameter instead of an equivalent triad.
2984         (struct gcc_target.sched.adjust_cost_2): Remove.
2985
2986         * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
2987
2988         * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
2989
2990         * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
2991         documentation.
2992         (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
2993
2994         * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
2995         (REG_DEP_TRUE): Document.
2996
2997         * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
2998         Change signature to correspond to the targetm.sched.adjust_cost hook.
2999         Update use in TARGET_SCHED_ADJUST_COST_2.
3000         (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
3001         (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
3002         new scheduler dependencies lists.
3003         (ia64_gen_check): Ditto.
3004
3005         * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
3006         dependencies lists.
3007
3008         * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
3009         signature to correspond to the targetm.sched.is_costly_dependence hook.
3010         (is_costly_group): Update to use new scheduler dependencies lists.
3011
3012         * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
3013         instead of INSN_COST () macro.
3014
3015 2007-02-01  Ian Lance Taylor  <iant@google.com>
3016
3017         * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
3018
3019 2007-02-01  Guy Martin  <gmsoft@gentoo.org>
3020
3021         * pa.md (tp_load): Correct mfctl instruction syntax.
3022
3023 2007-02-01  Geoffrey Keating  <geoffk@apple.com>
3024
3025         * config/rs6000/rs6000.c (rs6000_stack_info): Correct
3026         altivec_padding_size calculation on AIX.  Improve comment, add
3027         assert to verify that it's right.
3028
3029         * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
3030         64-bit.
3031
3032 2007-2-01  Seongbae Park  <seongbae.park@gmail.com>
3033
3034         PR inline-asm/28686
3035         * global.c (global_alloc): Add mising initialization of
3036         ELIMINABLE_REGSET.
3037
3038 2007-02-01  Roger Sayle  <roger@eyesopen.com>
3039
3040         * alias.c (init_alias_analysis): Correct whitespace.
3041         * bb-reorder.c (fix_edges_for_rarely_executed_code,
3042         partition_hot_cold_basic_blocks): Likewise.
3043         * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
3044         expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
3045         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
3046         fold_builtin_snprintf_chk, fold_builtin_printf,
3047         fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
3048         do_mpfr_arg3, do_mpfr_sincos): Likewise.
3049         * cfgcleanup.c (cleanup_cfg): Likewise.
3050         * cfgexpand.c (tree_expand_cfg): Likewise.
3051         * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
3052         * function.c (get_next_funcdef_no): Likewise.
3053         * gengtype.c (main): Likewise.
3054         * genmodes.c (main): Likewise.
3055         * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
3056         * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
3057         * ifcvt.c (noce_emit_move_insn): Likewise.
3058         * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
3059         Likewise.
3060         * stor-layout.c (get_best_mode): Likewise.
3061         * tree-ssa-loop-niter.c (get_val_for): Likewise.
3062         * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
3063         scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
3064         perform_var_substitution, solve_graph): Likewise.
3065         * tree-vrp.c (vrp_finalize): Likewise.
3066
3067 2007-02-01  Ian Lance Taylor  <iant@google.com>
3068
3069         * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
3070         high part of a paradoxical subreg, return a constant zero.
3071
3072 2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>
3073
3074         * toplev.c (lang_dependent_init): Call init_set_costs.
3075         * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
3076
3077 2007-02-01  Richard Guenther  <rguenther@suse.de>
3078
3079         PR middle-end/30656
3080         * fold-const.c (fold_negate_expr): Allow negating a
3081         constant if overflow does not change.
3082
3083 2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3084
3085         * doc/c-tree.texi (Expression trees): Improve markup.
3086         * doc/tm.texi (Register Classes, Addressing Modes)
3087         (Floating Point): Fix spacing after abbreviations.  Fix some
3088         typos.
3089
3090 2007-02-01  Ben Elliston  <bje@au.ibm.com>
3091
3092         * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
3093         * doc/contrib.texi: Likewise.
3094         * doc/install.texi: Likewise.
3095
3096 2007-01-31  Richard Henderson  <rth@redhat.com>
3097             Ian Lance Taylor  <iant@google.com>
3098
3099         * lower-subreg.c: New file.
3100         * rtl.def (CONCATN): Define.
3101         * passes.c (init_optimization_passes): Add pass_lower_subreg and
3102         pass_lower_subreg2.
3103         * emit-rtl.c (update_reg_offset): New static function, broken out
3104         of gen_rtx_REG_offset.
3105         (gen_rtx_REG_offset): Call update_reg_offset.
3106         (gen_reg_rtx_offset): New function.
3107         * regclass.c: Revert patch of 2006-03-05, restoring
3108         reg_scan_update.
3109         (clear_reg_info_regno): New function.
3110         * dwarf2out.c (concatn_loc_descriptor): New static function.
3111         (loc_descriptor): Handle CONCATN.
3112         * common.opt (fsplit_wide_types): New option.
3113         * opts.c (decode_options): Set flag_split_wide_types when
3114         optimizing.
3115         * timevar.def (TV_LOWER_SUBREG): Define.
3116         * rtl.h (gen_reg_rtx_offset): Declare.
3117         (reg_scan_update): Declare.
3118         * regs.h (clear_reg_info_regno): Declare.
3119         * tree-pass.h (pass_lower_subreg): Declare.
3120         (pass_lower_subreg2): Declare.
3121         * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
3122         (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
3123         -fsplit-wide-types.
3124         * doc/rtl.texi (Regs and Memory): Document concat and concatn.
3125         * Makefile.in (OBJS-common): Add lower-subreg.o.
3126         (lower-subreg.o): New target.
3127
3128 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3129
3130         * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
3131
3132 2007-01-31  Anatoly Sokolov <aesok@post.ru>
3133
3134         PR target/19087
3135         * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
3136
3137 2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3138
3139         PR middle-end/29335
3140         * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.
3141
3142 2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>
3143
3144         * cfgloop.h: Include vec-prim.h.
3145         (enum li_flags): Remove LI_ONLY_OLD.
3146         (loop_iterator): Changed.
3147         (fel_next, fel_init): Iterate over loop tree.
3148         (FOR_EACH_LOOP_BREAK): New macro.
3149         * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
3150         FOR_EACH_LOOP.
3151         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
3152         * modulo-sched.c (sms_schedule): Ditto.
3153         * tree-vectorizer.c (vectorize_loops): Ditto.
3154         * doc/loop.texi: Update information on loop numbering and behavior of
3155         FOR_EACH_LOOP wrto new loops.
3156         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
3157         add_to_evolution_1): Test nestedness of loops instead of comparing
3158         their numbers.
3159         * tree-chrec.c (chrec_fold_plus_poly_poly,
3160         chrec_fold_multiply_poly_poly, chrec_evaluate,
3161         hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
3162         reset_evolution_in_loop): Ditto.
3163         * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.
3164
3165 2007-01-31  Dirk Mueller  <dmueller@suse.de>
3166
3167         * c-common.c (warn_about_parentheses): Separate warning about
3168         un-parenthized sequence of comparison operators from the one
3169         which is supposed to warn about x <= y <= z.
3170
3171 2007-01-31  Uros Bizjak  <ubizjak@gmail.com>
3172
3173         * optabs.h (enum optab_index): Add new OTI_isinf.
3174         (isinf_optab): Define corresponding macro.
3175         * optabs.c (init_optabs): Initialize isinf_optab.
3176         * genopinit.c (optabs): Implement isinf_optab using isinf?f2
3177         patterns.
3178         * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
3179         (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
3180         using isinf_optab.
3181         (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
3182         expand_builtin_interclass_mathfn.
3183         * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
3184         * config/i386/i386.md (UNSPEC_FXAM): New constant.
3185         (fxam<mode>2_i387): New insn pattern.
3186         (isinf<mode>2) New expander to implement isinf, isinff and isinfl
3187         built-in functions as x87 inline asm.
3188
3189 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3190
3191         * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.
3192
3193 2007-01-30  Eric Christopher  <echristo@apple.com>
3194
3195         * config.gcc: Add geode.
3196
3197 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3198
3199         * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
3200         ipa-inline.c, tree-profile.c, tree-ssa-live.c,
3201         tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
3202         value-prof.c: Fix comment typos.
3203
3204 2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3205
3206         PR c++/24745
3207         * doc/invoke.texi (Wpointer-arith): Document warning.
3208
3209 2007-01-30  Janis Johnson  <janis187@us.ibm.com>
3210
3211         * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
3212         the list of discrepancies from the draft TR.
3213
3214 2007-01-30  Dirk Mueller  <dmueller@suse.de>
3215
3216         PR c++/30601
3217         * doc/invoke.texi (-Wreturn-type): Update description to
3218         match new behavior.
3219
3220 2007-01-30  Richard Sandiford  <richard@codesourcery.com>
3221
3222         * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
3223
3224 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
3225
3226         * builtins.c (expand_builtin_int_interclass_roundingfn): New function
3227         to handle optabs that operate on floating point input argument and
3228         output to integer output.
3229         (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
3230         (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
3231         (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
3232         expand_builtin_interclass_mathfn ().
3233         * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
3234         (ilogbsi2): Remove.
3235         (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
3236         ilogbl built-in functions as x87 intrinsics.
3237
3238 2007-01-30  Richard Guenther  <rguenther@suse.de>
3239
3240         PR middle-end/27657
3241         * dwarf2out.c (reference_to_unused): Query varpool if the
3242         variable was output.
3243
3244 2007-01-30  Richard Guenther  <rguenther@suse.de>
3245
3246         PR middle-end/30313
3247         * passes.c (execute_one_pass): Reset in_gimple_form to not
3248         confuse non-unit-at-a-time mode.
3249
3250 2007-01-29  Roger Sayle  <roger@eyesopen.com>
3251             Richard Guenther  <rguenther@suse.de>
3252
3253         * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
3254         avoid undefined behaviour on overflow.  Use force_fit_type_double
3255         to construct the constant with the specified TREE_OVERFLOW.
3256
3257 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3258
3259         * config/dfp-bit.c: Add parameterized support for fp exceptions.
3260         * config/dfp-bit.h: Ditto.
3261
3262 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3263
3264         * c-decl.c (pop_scope): Replace warnings with call to
3265         warn_for_unused_label.
3266         * c-common.h (warn_for_unused_label): Declare.
3267         * c-common.c (warn_for_unused_label): Define.
3268
3269 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3270
3271         * tree-optimize.c (update_inlined_to_pointers): Delete unused
3272         function.
3273
3274 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3275
3276         * Makefile.in (USER_H): Remove decfloat.h.
3277         * ginclude/decfloat.h: Delete, moving contents to ...
3278         * ginclude/float.h: Add support for decimal floating point,
3279         guarded by __STDC_WANT_DEC_FP__.
3280
3281 2007-01-29  Mike Stump  <mrs@apple.com>
3282
3283         * doc/gccint.texi (Top): Rename Loop Representation to Loop
3284         Analysis and Representation to resolve case insensitive conflict.
3285         * doc/loop.texi (Loop Analysis and Representation): Likewise.
3286
3287 2007-01-28  Daniel Berlin  <dberlin@dberlin.org>
3288
3289         * tree.h (struct tree_memory_tag): Add aliases member.
3290         (MTAG_ALIASES): New macro.
3291         * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
3292         (add_may_alias): Remove pointer-set. Update for may_aliases being
3293         a bitmap.
3294         (mark_aliases_call_clobbered): Update for may_aliases being a
3295         bitmap.
3296         (compute_tag_properties): Ditto.
3297         (create_partition_for): Ditto.
3298         (compute_memory_partitions): Ditto.
3299         (dump_may_aliases_for): Ditto.
3300         (is_aliased_with): Ditto.
3301         (add_may_alias_for_new_tag): Ditto.
3302         (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
3303         (compute_is_aliased): New function.
3304         (compute_may_aliases): Call compute_is_aliased).
3305         (init_alias_info): Initialize alias_bitmap_obstack.
3306         (union_alias_set_into): New function.
3307         (compute_flow_sensitive_aliasing): Use union_aliases_into.
3308         (have_common_aliases_p): Rewrite to take two bitmaps and use
3309         intersection.
3310         (compute_flow_insensitive_aliasing): Stop using pointer-sets.
3311         Update for bitmaps.
3312         (finalize_ref_all_pointers): Update for add_may_alias changes.
3313         (new_type_alias): Ditto.
3314         * tree-flow-inline.h (may_aliases): Return a bitmap.
3315         * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
3316         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
3317         may_aliases being a bitmap.
3318         * tree-flow.h (struct var_ann_d): Remove may_aliases member.
3319         may_aliases now returns a bitmap.
3320         * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
3321         being a bitmap.
3322         * tree-ssa-operands.c (add_virtual_operand): Update for
3323         may_aliases being a bitmap.
3324
3325 2007-01-29  Daniel Berlin  <dberlin@dberlin.org>
3326
3327         PR tree-optimization/30630
3328         * tree-ssa-structalias.c (do_complex_constraint): Mark correct
3329         variable as changed.
3330
3331 2007-01-29  Simon Martin  <simartin@users.sourceforge.net>
3332
3333         PR c++/28266
3334         * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
3335         expanded only once even if an error occurs.
3336
3337 2007-01-29  Ben Elliston  <bje@au.ibm.com>
3338
3339         * gcov-io.h (__gcov_indirect_call_profiler): Declare.
3340         (__gcov_average_profiler): Likewise.
3341         (__gcov_ior_profiler): Likewise.
3342         (__gcov_merge_ior): Likewise.
3343
3344 2007-01-28  Jan Hubicka  <jh@suse.cz>
3345
3346         * builtins.c (expand_builtin_memset): Fix typo in my last patch.
3347         * value-prof.c (stringop_block_profile): Likewise.
3348
3349 2007-01-28  Jan Hubicka  <jh@suse.cz>
3350
3351         * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
3352         variant handling histograms; add wrapper.
3353         (clear_storage_via_libcall): Export.
3354         (emit_block_move_hints): Break out from ...; add histograms.
3355         (emit_block_move): ... this one.
3356         (clear_storage_hints): Break out from ...; add histograms.
3357         (clear_storage): ... this one.
3358         (set_storage_via_memset): Handle histogram.
3359         * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
3360         (clear_storage_hints, clear_storage_via_libcall): Declare.
3361         (set_storage_via_setmem): Update prototype.
3362         * doc/md.texi (movmem, setmem): Document new arguments.
3363
3364         * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
3365         new histograms.
3366         (stringop_block_profile): New global function.
3367         (tree_stringops_values_to_profile): Profile block size and alignment.
3368         * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
3369         HIST_TYPE_IOR.
3370         (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
3371         (stringop_block_profile): Declare.
3372         * builtins.c: Include value-prof.h.
3373         (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
3374         * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
3375         (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
3376         (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
3377         * profile.c (instrument_values): Add new counters.
3378         * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
3379         calls.
3380         * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
3381         (tree_init_edge_profiler): Build new profilers.
3382         (tree_gen_average_profiler, tree_gen_ior_profiler): New.
3383         (pass_tree_profile): Add dump.
3384         (tree_profile_hooks): Update.
3385         * Makefile.in (LIBGCOV): Add new constants.
3386         * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
3387         __gcov_ior_profiler): New.
3388         * i386.md (movmem/setmem expanders): Add new optional arguments.
3389
3390 2007-01-28  David Edelsohn  <edelsohn@gnu.org>
3391
3392         * doc/md.texi (Standard Pattern Names): Document blockage pattern.
3393
3394 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3395
3396         * tree-ssa-loop-unswitch.c: Include tree-inline.h.
3397         (tree_unswitch_single_loop): Pass eni_size_weights to
3398         tree_num_loop_insns.
3399         * tree-ssa-loop-manip.c: Include tree-inline.h.
3400         (can_unroll_loop_p): Pass eni_size_weights to
3401         tree_num_loop_insns.
3402         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
3403         Pass eni_size_weights to estimate_num_insns.
3404         * tree.h (init_inline_once): Export.
3405         * toplev.c (backend_init): Call init_inline_once.
3406         * cgraphunit.c (cgraph_process_new_functions,
3407         cgraph_analyze_function): Pass eni_inlining_weights to
3408         estimate_num_insns.
3409         * ipa-inline.c (compute_inline_parameters): Ditto.
3410         * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
3411         to estimate_num_insns.
3412         (try_unroll_loop_completely): Pass eni_size_weights to
3413         tree_num_loop_insns.
3414         * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
3415         ot estimate_num_insns.
3416         *