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