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* gcc.c (getenv_spec_function): New function.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-02-22  Mark Mitchell  <mark@codesourcery.com>
2
3         * gcc.c (getenv_spec_function): New function.
4         (static_spec_functions): Add it.
5         * config/vxworks.h (VXWORKS_TARGET_DIR): Remove.
6         (VXWORKS_ADDITIONAL_CPP_SPEC): Use getenv to find the VxWorks
7         header files.
8
9 2007-02-22  Michael Matz  <matz@suse.de
10
11         PR c++/29433
12         * dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
13         (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.
14
15 2007-02-22  Ian Lance Taylor  <iant@google.com>
16
17         PR debug/30898
18         * dwarf2out.c (concatn_mem_loc_descriptor): New static function.
19         (mem_loc_descriptor): Call it.
20
21 2007-02-22  Zdenek Dvorak  <dvorakz@suse.cz>
22             Ira Rosen  <irar@il.ibm.com>
23
24         * tree-data-ref.c (ptr_ptr_may_alias_p): Take alias sets into account.
25
26 2007-02-22  Ira Rosen  <irar@il.ibm.com>
27
28         PR tree-optimization/30843
29         * tree-vect-transform.c (vect_transform_loop): Remove strided scalar 
30         stores only after all the group is vectorized.
31
32 2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>
33
34         PR tree-optimization/30858
35         * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
36         in the reduction cycle have a single use in the loop.
37         * tree-vectorizer.h (relevant): Add documentation.
38
39 2007-02-20  Mike Stump  <mrs@apple.com>
40
41         * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
42         * configure: Regenerate.
43
44 2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>
45
46         Change the defaults of some parameters and options.
47         * config/spu/spu-protos.h (spu_optimization_options): Declare.
48         * config/spu/spu.c (spu_optimization_options): Add.
49         (spu_override_options): Change params in spu_optimization_options.
50         * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.
51
52         Register 127 is only 16 byte aligned when used as a frame pointer.
53         * config/spu/spu-protos.h (spu_init_expanders): Declare.
54         * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
55         HARD_FRAME_POINTER_REGNUM.
56         (spu_legitimate_address):  Use regno_aligned_for_reload.
57         (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
58         aligned when frame_pointer_needed is true.
59         (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
60         to 8 bits.
61         * config/spu/spu.h (INIT_EXPANDERS): Define.
62
63         Make sure shift and rotate instructions have valid immediate operands.
64         * config/spu/predicates.md (spu_shift_operand): Remove.
65         * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
66         * config/spu/constraints.md (W, O): Extend range.
67         * config/spu/spu.md (umask, nmask): Define.
68         (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
69         lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
70         rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
71         rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
72         spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
73         (lshr<mode>3_reg):  Fix rtl description.
74
75         Make sure mulhisi immediate operands are valid.
76         * config/spu/predicates.md (imm_K_operand): Add.
77         * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.
78
79         Generate constants using fsmbi and andi.
80         * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
81         (print_operand, spu_split_immediate, classify_immediate,
82         fsmbi_const_p): Handle IC_FSMBI2.
83
84         Correctly handle a CONST_VECTOR containing symbols.
85         * config/spu/spu.c (print_operand): Handle HIGH correctly.
86         (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
87         (immediate_load_p): Allow symbols that use 2 instructions to create.
88         (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
89         with symbols when flag_pic is set.
90         (const_vector_immediate_p): New.
91         (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
92         accept a CONST_VECTOR with symbols.
93         (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
94         accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
95         correctly.
96         * config/spu/spu.md (high, low): Delete.
97         (low_<mode>): Define.
98
99         Remove INTRmode and INTR_REGNUM, which didn't work.
100         * config/spu/spu.c (spu_conditional_register_usage): Remove reference
101         of INTR_REGNUM.
102         * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
103         set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
104         peephole2 pattern): Don't use INTR or 131.
105         (movintrcc): Delete.
106         * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
107         CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
108         * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
109         (UNSPEC_SET_INTR): Add.
110         * config/spu/spu-modes.def (INTR): Remove.
111
112         More accurate warnings about run-time relocations.
113         * config/spu/spu.c (reloc_diagnostic): Test in_section.
114
115         Correctly warn about immediate arguments to specific intrinsics.
116         * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
117         (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
118         the instruction predicate.
119
120         Fix tree check errors with latest update.
121         * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
122         CALL_EXPR_ARG.
123         (spu_expand_builtin): Use CALL_EXPR_FN.
124
125         Add missing specific intrinsics.
126         * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
127         si_bislede.
128         * config/spu/spu_internals.h: Ditto.
129
130         Fix incorrect operand modifiers.
131         * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
132         * config/spu/spu.md (xor<mode>3):  Change %S to %J.
133
134         Optimize one case of zero_extend of a vec_select.
135         * config/spu/spu.md (_vec_extractv8hi_ze):  Add.
136
137         Accept any immediate for hbr.
138         * config/spu/spu.md (hbr):  Change s constraints to i.
139
140 2007-02-21  Paul Brook  <paul@codesourcery.com>
141
142         * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
143         condexec_count when skipping USE and CLOBBER.
144
145 2007-02-21  Nick Clifton  <nickc@redhat.com>
146
147         * common.opt (Warray-bounds): Add Warning attribute.
148         (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
149         Likewise.
150         (fsized-zeroes): Add Optimization attribute.
151         (fsplit-wide-types, ftree-scev-cprop): Likewise.
152         * c.opt (Wc++0x-compat): Add Warning attribute.
153
154 2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>
155
156         PR middle-end/30761
157         * reload1.c (eliminate_regs_in_insn): In the single_set special
158         case, attempt to re-recognize the insn before falling back to
159         having reload fix it up.
160
161 2007-02-20  Eric Christopher  <echristo@gmail.com>
162
163         * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
164         Rewrite accordingly.
165         (frv_read_iacc_argument): Ditto.
166         (frv_expand_set_builtin): Take a call instead of arglist, update for
167         above changes.
168         (frv_expand_unop_builtin): Ditto.
169         (frv_expand_binop_builtin): Ditto.
170         (frv_expand_cut_builtin): Ditto.
171         (frv_expand_binopimm_builtin): Ditto.
172         (frv_expand_voidbinop_builtin): Ditto.
173         (frv_expand_int_void2arg): Ditto.
174         (frv_expand_prefetches): Ditto.
175         (frv_expand_voidtriop_builtin): Ditto.
176         (frv_expand_voidaccop_builtin): Ditto.
177         (frv_expand_load_builtin): Ditto.
178         (frv_expand_store_builtin): Ditto.
179         (frv_expand_mdpackh_builtin): Ditto.
180         (frv_expand_mclracc_builtin): Ditto.
181         (frv_expand_mrdacc_builtin): Ditto.
182         (frv_expand_mwtacc_builtin): Ditto.
183         (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
184         calls for above.
185
186 2007-02-20  Janis Johnson  <janis187@us.ibm.com>
187
188         * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
189         * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
190         cmpb instruction.
191         (HAVE_GAS_DFP): Check for assembler support of decimal floating
192         point instructions.
193         * configure: Regenerate.
194         * config.in: Regenerate.
195         * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
196         * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
197         masks to power6 and power6x and to POWERPC_MASKS.
198         * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
199         _ARCH_PWR6.
200         * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
201         * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
202         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
203         Access PROTOTYPE as variable, not mask.
204
205 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
206
207         * rtl.h (remove_reg_equal_equiv_notes): New prototype.
208         * rtlanal.c (remove_reg_equal_equiv_notes): New function.
209         * combine.c (adjust_for_new_dest): Use it.
210         * postreload.c (reload_combine): Likewise.
211
212 2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>
213
214         * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
215         notes on an insn with multiple sets, even if single_set returns
216         non-NULL for that insn.
217
218 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
219
220         * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
221         scalbn and scalbln.
222
223 2007-02-20  Geoffrey Keating  <geoffk@apple.com>
224
225         * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
226         if user didn't pass it.
227         * config/i386/darwin.h (CC1_SPEC): Likewise.
228         * config/rs6000/darwin.h (CC1_SPEC): Likewise.
229         (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
230         -mmacosx-version-min.
231
232 2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
233             Uros Bizjak  <ubizjak@gmail.com>
234
235         * optabs.h (enum optab_index): Add new OTI_scalb.
236         (scalb_optab): Define corresponding macro.
237         * optabs.c (init_optabs): Initialize scalb_optab.
238         * genopinit.c (optabs): Implement scalb_optab using scalb?f3
239         patterns.
240         * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
241         BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
242         (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
243         and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
244         flag_unsafe_math_optimizations is set.
245
246         * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
247         to implement scalbf, scalb and scalbl built-ins as inline x87
248         intrinsics.
249
250 2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
251             DJ Delorie <dj@redhat.com>
252
253         PR other/30824
254         * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
255         (diagnostic_report_diagnostic): ... here, and turn them into real
256         errors. If warnings are inhibited, no need to do anything.
257
258 2007-02-20  Uros Bizjak  <ubizjak@gmail.com>
259
260         * config/i386/i386.md (expm1xf2): Reorder insn sequence for
261         better code generation.
262
263 2007-02-20  Ben Elliston  <bje@au.ibm.com>
264
265         * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.
266
267 2007-02-20  Kazu Hirata  <kazu@codesourcery.com>
268
269         * config/alpha/alpha.c, config/alpha/alpha.md,
270         config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
271         config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
272         config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
273         config/arm/lib1funcs.asm: Follow spelling conventions.
274
275         * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
276         config/fr30/fr30.md, config/i386/i386.h,
277         config/iq2000/iq2000.h, config/iq2000/predicates.md,
278         config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
279         config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
280         config/pdp11/pdp11.c, config/pdp11/pdp11.h,
281         config/rs6000/altivec.md, config/rs6000/rs6000.c,
282         config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
283         config/sparc/sparc.c, config/sparc/sparc.h,
284         config/sparc/sparc.md, config/spu/constraints.md,
285         config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
286         conventions.
287
288 2007-02-20  Alan Modra  <amodra@bigpond.net.au>
289
290         PR target/29943
291         * varasm.c (use_blocks_for_decl_p): Return false for decls with
292         alias attribute.
293
294 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
295
296         * doc/invoke.texi (-ftree-lrs): Remove.
297
298 2007-02-19  Diego Novillo  <dnovillo@redhat.com>
299
300         * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
301         NULL.
302
303 2007-02-19  Lee Millward  <lee.millward@codesourcery.com>
304
305         * config/ia64/ia64.c (ia64_expand_builtin): Use the
306         new CALL_EXPR_FN macro for retrieving the function
307         declaration of the input expression.
308
309 2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
310
311         * c.opt (Waddress): New.
312         * common.opt (Walways-true): Delete.
313         (Wstring-literal-comparison): Delete.
314         * doc/invoke.texi (Warning Options): Delete -Walways-true and
315         -Wstring-literal-comparison. Add -Waddress.
316         (Waddress): New.
317         (Walways-true): Delete.
318         (Wstring-literal-comparison): Delete.
319         * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
320         consistently instead of -Walways-true in example.
321         * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
322         * c-typeck.c (parser_build_binary_op): Replace
323         -Wstring-literal-comparison and -Walways-true with -Waddress.
324         * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
325         with -Waddress.
326
327 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
328
329         * tree-cfg.c (dump_function_to_file): Be prepared for functions
330         without DECL_STRUCT_FUNCTION initialized.
331
332 2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>
333
334         * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
335         due to calls to functions taking pointers as parameters.
336
337 2007-02-19  Richard Henderson  <rth@redhat.com>
338
339         PR debug/29558
340         * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
341         in memory.
342
343 2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>
344
345         * config/s390/s390.c (s390_call_saved_register_used,
346         s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
347         accessed to the new scheme.
348
349 2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
350
351         * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
352         (cris_print_index, cris_print_operand, cris_print_operand_address)
353         (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
354         (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
355         (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
356         GET_CODE () == xxx.
357         * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
358         EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
359         GO_IF_LEGITIMATE_ADDRESS): Ditto.
360         * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
361         (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
362         (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
363         (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
364         (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
365         (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
366         (uminsi3, call, call_value): Ditto.
367         (define_split: indir_to_reg_split, unnamed): Ditto.
368
369 2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>
370
371         PR tree-optimization/30975
372         * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
373         wrong assert.
374
375 2007-02-18  Eric Christopher  <echristo@gmail.com>
376
377         * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
378         Remove use of arglist.
379         (mips_expand_builtin): Remove use of arglist, pass in expr.
380         (mips_expand_builtin_direct): Rewrite handling for arglist removal.
381         (mips_expand_builtin_movtf): Ditto.
382         (mips_expand_builtin_compare): Ditto.
383
384 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
385
386         * tree-sra.c (sra_build_assignment): Replace assertion
387         checking with a comment explaining why it can't be done.
388
389 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
390
391         PR middle-end/30833
392         * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
393         during CALL_EXPR representation conversion.
394         * tree-ssa-propagate.c (set_rhs): Likewise.
395
396 2007-02-19  Alexandre Oliva  <aoliva@redhat.com>
397
398         * tree-sra.c (sra_build_assignment): Disable assertion checking
399         for now.
400
401 2007-02-18  Roger Sayle  <roger@eyesopen.com>
402
403         * function.c (gimplify_parameters): Call build_gimple_modify_stmt
404         instead of calling build2 with a GIMPLE_MODIFY_STMT.
405         * gimple-low.c (lower_function_body, lower_builtin_setjmp):
406         Likewise.
407         * gimplify.c (build_stack_save_restore, gimplify_return_expr,
408         gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
409         gimplify_init_ctor_eval_range, gimple_push_cleanup,
410         gimplify_omp_for, gimplify_omp_atomic_pipeline,
411         gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
412         force_gimple_operand): Likewise.
413         * ipa-cp.c (constant_val_insert): Likewise.
414         * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
415         lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
416         perfect_nestify): Likewise.
417         * langhooks.c (lhd_omp_assignment): Likewise.
418         * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
419         lower_copyprivate_clauses, lower_send_clauses,
420         lower_send_shared_vars, expand_parallel_call,
421         expand_omp_for_generic, expand_omp_for_static_nochunk,
422         expand_omp_for_static_chunk, expand_omp_sections,
423         lower_omp_single_copy, lower_omp_for_lastprivate,
424         lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
425         * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
426         tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
427         Likewise.
428
429 2007-02-19  Kazu Hirata  <kazu@codesourcery.com>
430
431         * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
432         config/sh/sh.md: Follow spelling conventions.
433
434         * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
435         config/frv/predicates.md: Follow spelling conventions.
436
437         * config/m68k/linux-unwind.h: Fix a comment typo.
438         * target.h: Follow spelling conventions.
439
440 2007-02-18  Roger Sayle  <roger@eyesopen.com>
441
442         PR rtl-optimization/28173
443         * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
444         (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
445         Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
446         Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
447         <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).
448
449 2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
450
451         * builtins.c (fold_builtin_load_exponent): New.
452         (fold_builtin_2): Use it.
453
454 2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>
455
456         PR rtl-optimization/30773
457         * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
458         if we fail to attach a REG_EQUIV note.
459
460 2007-02-18  David Edelsohn  <edelsohn@gnu.org>
461             Roger Sayle  <roger@eyesopen.com>
462
463         * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
464
465 2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>
466
467         * calls.c (initialize_argument_information): Pass original EXP
468         and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
469         code to split complex arguments here, as part of initializing the
470         ARGS array.
471         (expand_call): Remove code that builds a list of arguments and
472         inserts implicit arguments into it.  Instead, just count how many
473         implicit arguments there will be so we can determine the size of
474         the ARGS array, and let initialize_argument_information do the work.
475         (split_complex_values): Delete unused function.
476
477 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
478
479         * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
480
481 2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>
482
483         * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
484         for arg pointer based indexed addressing.
485
486 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
487
488         * config/ia64/ia64.h, config/ia64/ia64.md,
489         config/ia64/predicates.md, config/ia64/sysv4.h: Follow
490         spelling conventions.
491
492 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
493
494         * config/m68k/m68k.c (split_di): New.
495         * config/m68k/m68k-protos.h: Declare split_di.
496         * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
497           Improve predicate handling and split constant shifts.
498
499 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
500
501         * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
502         parameter for register bitfield operations, general predicates
503         cleanup
504
505 2007-02-18  Roman Zippel <zippel@linux-m68k.org>
506
507         * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
508         * config/m68k/linux-unwind.h: New file.
509
510 2007-02-18  Kazu Hirata  <kazu@codesourcery.com>
511
512         * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
513         config/i386/athlon.md, config/ia64/ia64.md,
514         config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
515         df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
516         ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
517         tree-ssa-loop-niter.c, tree-vect-analyze.c,
518         tree-vect-transform.c: Fix comment typos.
519
520 2007-02-17  Kazu Hirata  <kazu@codesourcery.com>
521
522         * sched-deps.c (find_insn_list): Remove.
523         * sched-int.h: Remove the prototype for find_insn_list.
524
525 2007-02-16  Geoffrey Keating  <geoffk@apple.com>
526
527         * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
528         to linker.
529         (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
530         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
531         darwin_rs6000_override_options.
532         (C_COMMON_OVERRIDE_OPTIONS): Expect
533         darwin_macosx_version_min to be non-NULL always.
534         (TARGET_C99_FUNCTIONS): Likewise.
535         (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
536         (DARWIN_MINVERSION_SPEC): New.
537         * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
538         * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
539         to cc1*.
540         (DARWIN_MINVERSION_SPEC): New.
541         * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
542         value.
543         * config/darwin-c.c (darwin_cpp_builtins): Expect
544         darwin_macosx_version_min to be non-NULL always.
545
546         * config/rs6000/rs6000.c: Clean up trailing whitespace.
547
548 2007-02-16  Uros Bizjak  <ubizjak@gmail.com>
549
550         * config/i386/i386.h (x86_use_xchgb): New.
551         (TARGET_USE_XCHGB): New macro.
552         * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
553         * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
554         Split after reload into bswaphi for shifts of 8.
555         (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
556         (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
557         or when optimizing for size.
558
559 2007-02-16  Richard Guenther  <rguenther@suse.de>
560             Christian Bruel  <christian.bruel@st.com>
561
562         * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
563         DECLs but prefer SSA_NAMEs over DECLs.
564
565 2007-02-16  Richard Guenther  <rguenther@suse.de>
566
567         * tree-flow-inline.h (single_imm_use_p): Remove.
568         (zero_imm_uses_p): Likewise.
569         * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
570         instead of single_imm_use_p.
571         * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
572         zero_imm_uses_p.
573
574 2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
575
576         PR other/27843
577         * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
578         nested double- and backquotes.
579
580 2007-02-15  Roger Sayle  <roger@eyesopen.com>
581
582         PR middle-end/30391
583         * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
584         should be unreachable.
585         (build2_stat): Allow construction of MODIFY_EXPR at any time.
586         For the time being redirect GIMPLE_MODIFY_STMT to the new
587         (renamed) build_gimple_modify_stmt_stat.
588         (build2_gimple_stat): Rename to...
589         (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
590         Always build a GIMPLE_MODIFY_STMT node.
591         * tree.h (build2_gimple, build2_gimple_stat): Delete.
592         (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
593         declarations.
594
595         * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
596         gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
597         * tree-complex.c (set_component_ssa_name, expand_complex_move,
598         expand_complex_div_wide): Likewise.
599         * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
600         * tree-ssa-loop-im.c (schedule_sm): Likewise.
601         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
602         * tree-ssa-loop-manip.c (create_iv): Likewise.
603         * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
604         abs_replacement): Likewise.
605         * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
606         realify_fake_stores): Likewise.
607
608         * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
609         node rather than a GIMPLE_MODIFY_STMT node.
610         (std_gimpify_va_arg_expr, expand_builtin_va_copy,
611         fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
612         Likewise.
613         (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
614         * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
615         GIMPLE_MODIFY_STMT.
616
617 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
618
619         PR middle-end/30433
620         * fold-const.c (fold_comparison): Add back the
621         folding of constant complex comparisions.
622
623 2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>
624
625         PR middle-end/30729
626         * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
627         effects unknown to this function, return early.
628
629 2007-02-15  Ian Lance Taylor  <iant@google.com>
630
631         * lower-subreg.c (move_eh_region_note): New static function.
632         (resolve_simple_move): Call it.
633         (decompose_multiword_subregs): Track blocks for which we resolve a
634         simple move which is also a control flow insn.  Pass them to
635         find_many_sub_basic_blocks.
636         (pass_lower_subreg): Add TODO_verify_flow.
637         (pass_lower_subreg2): Likewise.
638
639 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
640             Brooks Moses  <brooks.moses@codesourcery.com>
641             Lee Millward  <lee.millward@codesourcery.com>
642
643         * tree.h (enum tree_code_class): Add tcc_vl_exp.
644         (VL_EXP_CLASS_P): New.
645         (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
646         TREE_CODE_LENGTH.
647         (TREE_OPERAND_CHECK_CODE): Likewise.
648         (GIMPLE_STMT_OPERAND_CHECK): Likewise.
649         (TREE_RTL_OPERAND_CHECK): Likewise.
650         (tree_operand_check_failed): Make second parameter the whole tree
651         instead of its code.  Fixed callers.
652         (VL_EXP_CHECK): New.
653         (TREE_OPERAND_LENGTH): New.
654         (VL_EXP_OPERAND_LENGTH): New.
655         (CALL_EXPR_FN): New.
656         (CALL_EXPR_STATIC_CHAIN): New.
657         (CALL_EXPR_ARGS): New.
658         (CALL_EXPR_ARG): New.
659         (call_expr_nargs): New.
660         (CALL_EXPR_ARGP): New.
661         (build_nt_call_list): Declare.
662         (build_vl_exp_stat): Declare.
663         (build_vl_exp): New.
664         (build_call_list): Declare.
665         (build_call_nary): Declare.
666         (build_call_valist): Declare.
667         (build_call_array): Declare.
668         (call_expr_arg): Declare.
669         (call_expr_argp): Declare.
670         (call_expr_arglist): Declare.
671         (fold_build_call_list): Declare.
672         (fold_build_call_list_initializer): Declare.
673         (fold_call_expr): Declare to replace fold_builtin.
674         (fold_builtin_fputs): Update to agree with modified definition.
675         (fold_builtin_strcpy): Likewise.
676         (fold_builtin_strncpy): Likewise.
677         (fold_builtin_memory_chk): Likewise.
678         (fold_builtin_stxcpy_chk): Likewise.
679         (fold_builtin_strncpy_chk): Likewise.
680         (fold_builtin_next_arg): Likewise.
681         (fold_build_call_expr): Declare.
682         (fold_builtin_call_list): Declare.
683         (fold_builtin_call_valist): Declare.
684         (build_call_expr): Declare.
685         (validate_arglist): Update to agree with modified definition.
686         (tree_operand_length): New.
687         (call_expr_arg_iterator): New.
688         (init_call_expr_arg_iterator): New.
689         (next_call_expr_arg): New.
690         (first_call_expr_arg): New.
691         (more_call_expr_args_p): New.
692         (FOR_EACH_CALL_EXPR_ARG): New.
693
694         * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
695         and tcc_gimple_stmt.
696         (tree_code_size): Update documentation.  Use sizeof (tree) rather
697         than sizeof (char *).
698         (tree_size): Likewise.  Add case for tcc_vl_exp.
699         (tree_node_structure): Add case for tcc_vl_exp.
700         (contains_placeholder_p): Likewise.
701         (substitute_in_expr): Likewise.
702         (substitute_placeholder_in_expr): Likewise.
703         (stabilize_reference_1): Likewise.
704         (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
705         to diagnose breakage of this interface for constructing CALL_EXPRs.
706         (build_nt): Add similar assertion here.
707         (build_nt_call_list): New.
708         (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
709         (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
710         TREE_CODE_LENGTH.
711         (get_callee_fndecl): Use new CALL_EXPR accessors.
712         (tree_operand_check_failed): Change parameters to pass entire node
713         instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
714         (process_call_operands): New.
715         (build_vl_exp_stat): New.
716         (build_call_list): New.
717         (build_call_nary): New.
718         (build_call_valist): New.
719         (build_call_array): New.
720         (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
721         (call_expr_arglist): New.
722
723         * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
724         tcc_vl_exp instead of a fixed-size tcc_expression.
725
726         * doc/c-tree.texi (CALL_EXPR): Document new representation and
727         accessors for CALL_EXPRs.
728         (AGGR_INIT_EXPR): Likewise.
729
730 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
731             Brooks Moses  <brooks.moses@codesourcery.com>
732             Lee Millward  <lee.millward@codesourcery.com>
733
734         * builtins.c (c_strlen): Return NULL_TREE instead of 0.
735         (expand_builtin_nonlocal_goto): Change parameter to be entire
736         CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
737         (expand_builtin_prefetch): Likewise.
738         (expand_builtin_classify_type): Likewise.
739         (mathfn_built_in): Return NULL_TREE instead of 0.
740         (expand_errno_check): Use new CALL_EXPR accessors.
741         (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
742         Return NULL_RTX instead of 0.
743         (expand_builtin_mathfn_2): Likewise.
744         (expand_builtin_mathfn_3): Likewise.
745         (expand_builtin_interclass_mathfn): Likewise.
746         (expand_builtin_sincos): Likewise.
747         (expand_builtin_cexpi): Likewise.
748         (expand_builtin_int_roundingfn): Likewise.
749         (expand_builtin_int_roundingfn_2): Likewise.
750         (expand_builtin_pow): Likewise.
751         (expand_builtin_powi): Likewise.
752         (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
753         of arglist, fixing callers appropriately.  Use new CALL_EXPR
754         accessors and constructors.  Return NULL_RTX instead of 0.
755         (expand_builtin_strstr): Likewise.
756         (expand_builtin_strchr): Likewise.
757         (expand_builtin_strrchr): Likewise.
758         (expand_builtin_strpbrk): Likewise.
759         (expand_builtin_memcpy): Likewise.
760         (expand_builtin_mempcpy): Likewise.
761         (expand_builtin_mempcpy_args): New.
762         (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
763         (expand_builtin_memmove_args): New.
764         (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
765         (expand_movstr): Likewise.
766         (expand_builtin_strcpy): Likewise.
767         (expand_builtin_strcpy_args): New.
768         (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
769         (expand_builtin_strncpy): Likewise.
770         (expand_builtin_memset): Likewise.
771         (expand_builtin_memset_args): New.
772         (expand_builtin_bzero): Similarly to expand_builtin_memset.
773         (expand_builtin_memcmp): Likewise.
774         (expand_builtin_strcmp): Likewise.
775         (expand_builtin_strncmp): Likewise.
776         (expand_builtin_strcat): Likewise.
777         (expand_builtin_strncat): Likewise.
778         (expand_builtin_strspn): Likewise.
779         (expand_builtin_strcspn): Likewise.
780         (expand_builtin_args_info): Likewise.
781         (expand_builtin_va_start): Likewise.
782         (gimplify_va_arg_expr): Likewise.
783         (expand_builtin_va_end): Likewise.
784         (expand_builtin_va_copy): Likewise.
785         (expand_builtin_frame_address): Likewise.
786         (expand_builtin_alloca): Likewise.
787         (expand_builtin_bswap): Likewise.
788         (expand_builtin_unop): Likewise.
789         (expand_builtin_fputs): Likewise.
790         (expand_builtin_expect): Likewise.
791         (expand_builtin_fabs): Likewise.
792         (expand_builtin_copysign): Likewise.
793         (expand_builtin_printf): Likewise.
794         (expand_builtin_fprintf): Likewise.
795         (expand_builtin_sprintf): Likewise.
796         (expand_builtin_init_trampoline): Likewise.
797         (expand_builtin_signbit): Likewise.
798         (expand_builtin_fork_or_exec): Likewise.
799         (expand_builtin_sync_operation): Likewise.
800         (expand_builtin_compare_and_swap): Likewise.
801         (expand_builtin_lock_test_and_set): Likewise.
802         (expand_builtin_lock_release): Likewise.
803         (expand_builtin): Likewise.
804         (builtin_mathfn_code): Likewise.
805
806         (fold_builtin_constant_p): Pass call arguments individually instead
807         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
808         accessors and constructors.  Return NULL_TREE instead of 0.
809         (fold_builtin_expect): Likewise.
810         (fold_builtin_classify_type): Likewise.
811         (fold_builtin_strlen): Likewise.
812         (fold_builtin_nan): Likewise.
813         (integer_valued_real_p): Likewise.
814         (fold_trunc_transparent_mathfn): Likewise.
815         (fold_fixed_mathfn): Likewise.
816         (fold_builtin_cabs): Likewise.
817         (fold_builtin_sqrt): Likewise.
818         (fold_builtin_cbrt): Likewise.
819         (fold_builtin_cos): Likewise.
820         (fold_builtin_cosh): Likewise.
821         (fold_builtin_tan): Likewise.
822         (fold_builtin_sincos): Likewise.
823         (fold_builtin_cexp): Likewise.
824         (fold_builtin_trunc): Likewise.
825         (fold_builtin_floor): Likewise.
826         (fold_builtin_ceil): Likewise.
827         (fold_builtin_round): Likewise.
828         (fold_builtin_int_roundingfn): Likewise.
829         (fold_builtin_bitop): Likewise.
830         (fold_builtin_bswap): Likewise.
831         (fold_builtin_logarithm): Likewise.
832         (fold_builtin_hypot): Likewise.
833         (fold_builtin_pow): Likewise.
834         (fold_builtin_powi): Likewise.
835         (fold_builtin_exponent): Likewise.
836         (fold_builtin_memset): Likewise.
837         (fold_builtin_bzero): Likewise.
838         (fold_builtin_memory_op): Likewise.
839         (fold_builtin_bcopy): Deleted; call site changed to invoke
840         fold_builtin_memory_op directly.
841         (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
842         (fold_builtin_strncpy): Likewise.
843         (fold_builtin_memcmp): Likewise.
844         (fold_builtin_strcmp): Likewise.
845         (fold_builtin_strncmp): Likewise.
846         (fold_builtin_signbit): Likewise.
847         (fold_builtin_copysign): Likewise.
848         (fold_builtin_isascii): Likewise.
849         (fold_builtin_toascii): Likewise.
850         (fold_builtin_isdigit): Likewise.
851         (fold_builtin_fabs): Likewise.
852         (fold_builtin_abs): Likewise.
853         (fold_builtin_fmin_fmax): Likewise.
854         (fold_builtin_carg): Likewise.
855         (fold_builtin_classify): Likewise.
856         (fold_builtin_unordered_cmp): Likewise.
857
858         (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
859         New functions split out from fold_builtin_1.
860         (fold_builtin_n): New.
861         (fold_builtin_varargs): New.
862         (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
863         instead.
864         (fold_call_expr): New.
865         (build_function_call_expr): Rewrite to use new helper function.
866         (fold_builtin_call_list): New.
867         (build_call_expr): New.
868         (fold_builtin_call_valist): New.
869         (rewrite_call_expr): New.
870         (validate_arg): New.
871         (validate_arglist): Change parameter to be entire CALL_EXPR instead
872         of an arglist.  Change return type to bool.  Use new CALL_EXPR
873         accessors.
874
875         (fold_builtin_strstr):  Pass call arguments individually instead
876         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
877         accessors and constructors.  Return NULL_TREE instead of 0.
878         (fold_builtin_strchr): Likewise.
879         (fold_builtin_strrchr): Likewise.
880         (fold_builtin_strpbrk): Likewise.
881         (fold_builtin_strcat): Likewise.
882         (fold_builtin_strncat): Likewise.
883         (fold_builtin_strspn): Likewise.
884         (fold_builtin_strcspn): Likewise.
885         (fold_builtin_fputs): Likewise.
886         (fold_builtin_next_arg): Likewise.
887         (fold_builtin_sprintf): Likewise.
888
889         (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
890         NULL_RTX instead of 0.
891         (expand_builtin_memory_chk): Likewise.
892         (maybe_emit_chk_warning): Likewise.
893         (maybe_emit_sprintf_chk_warning): Likewise.
894
895         (fold_builtin_object_size): Pass call arguments individually instead
896         of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
897         accessors and constructors.  Return NULL_TREE instead of 0.
898         (fold_builtin_memory_chk): Likewise.
899         (fold_builtin_stxcpy_chk): Likewise.
900         (fold_builtin_strncpy_chk): Likewise.
901         (fold_builtin_strcat_chk): Likewise.
902         (fold_builtin_strcat_chk): Likewise.
903         (fold_builtin_strncat_chk): Likewise.
904         (fold_builtin_sprintf_chk): Likewise.
905         (fold_builtin_snprintf_chk): Likewise.
906         (fold_builtin_printf): Likewise.
907         (fold_builtin_vprintf): Likewise.
908
909         * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
910         constructors.
911         (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
912         (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
913         (extract_muldiv_1): Add VL_EXP_CLASS_P case.
914         (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
915         (fold_unary): Likewise.
916         (fold_binary): Likewise.
917         (fold_ternary): Remove CALL_EXPR case, since they are no longer
918         ternary expressions.
919         (fold): Add logic for tcc_vl_exp.
920         (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
921         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
922         (fold_build3_stat): Add assertion to flag broken interface for
923         constructing CALL_EXPRs.
924         (fold_build_call_list): New.
925         (fold_build_call_list_initializer): New.
926         (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
927         constructors.
928         (fold_strip_sign_ops): Likewise.
929
930 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
931             Brooks Moses  <brooks.moses@codesourcery.com>
932             Lee Millward  <lee.millward@codesourcery.com>
933
934         * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
935         accessors and dump arguments explicitly.
936
937         * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
938         TREE_CODE_LENGTH.
939         (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
940         explicitly.
941         (print_call_name): Use new CALL_EXPR accessors.
942
943         * print-tree.c (print_node): Add case tcc_vl_exp.  Print
944         CALL_EXPR arguments explicitly instead of as a list.  Use
945         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
946
947         * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
948         (vrp_visit_stmt): Likewise.
949
950         * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
951         know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
952         TREE_CODE_LENGTH.
953         (force_move_till_expr): Likewise.
954
955         * targhooks.c (default_external_stack_protect_fail): Use
956         build_call_expr instead of build_function_call_expr.
957         (default_hidden_stack_protect_fail): Likewise.
958
959         * tree-complex.c (expand_complex_libcall): Use build_call_expr to
960         build the call.
961
962         * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
963         and walk arguments explicitly.
964
965         * tree-ssa-loop-niter.c (simplify_replace_tree): Use
966         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
967         (expand_simple_operations): Likewise.
968         (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
969
970         * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
971         of TREE_CODE_LENGTH.
972         (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
973
974         * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
975         instead of TREE_CODE_LENGTH.
976
977         * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
978         (tree_ic_transform): Likewise.
979         (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
980         parameter instead of arglist.  Fix callers.
981         (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
982         (tree_stringops_transform): Likewise.
983         (tree_indirect_call_to_profile): Likewise.
984         (tree_stringops_values_to_profile): Likewise.
985
986         * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
987         (eliminate_tail_call): Likewise.
988
989         * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
990
991         * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
992         Use TREE_OPERAND_LENGTH and generalize to handle any number of
993         operands.
994         (instantiate_parameters_1): Can't handle tcc_vl_exp here.
995
996         * omp-low.c (build_omp_barrier): Use build_call_expr.
997         (lower_rec_input_clauses): Likewise.
998         (lower_reduction_clauses): Likewise.
999         (expand_parallel_call): Likewise.
1000         (maybe_catch_exception): Likewise.
1001         (expand_omp_for_generic): Likewise.
1002         (expand_omp_for_static_nochunk): Likewise.
1003         (expand_omp_sections): Likewise.
1004         (lower_omp_single_simple): Likewise.
1005         (lower_omp_single_copy): Likewise.
1006         (lower_omp_master): Likewise.
1007         (lower_omp_ordered): Likewise.
1008         (lower_omp_critical): Likewise.
1009
1010         * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
1011         (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
1012
1013         * tree-gimple.c (is_gimple_call_addr): Fix doc.
1014         (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
1015         TREE_CODE_LENGTH.  Add tcc_vl_exp case.
1016
1017         * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
1018         and generalize to handle any number of operands.
1019         (chrec_contains_undetermined): Likewise.
1020         (tree_contains_chrecs): Likewise.
1021         (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
1022
1023         * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
1024
1025         * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
1026         fold_call_expr instead of fold_builtin.
1027         (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
1028         match declarations there.
1029         (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
1030         updates.
1031
1032         * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
1033         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1034
1035         * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
1036         (scan_function): Add case tcc_vl_exp for CALL_EXPR.
1037
1038         * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
1039         accessors.
1040
1041         * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
1042         (execute_cse_sincos): Use new CALL_EXPR accessors.
1043
1044         * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
1045
1046         * gimple-low.c (lower_function_body): Use build_call_expr.
1047         (lower_builtin_setjmp): Likewise.
1048
1049         * expr.c (emit_block_move_via_libcall): Use build_call_expr.
1050         (set_storage_via_libcall): Likewise.
1051         (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
1052         instead of TREE_CODE_LENGTH.
1053         (expand_expr_real_1): Use new CALL_EXPR accessors.
1054
1055         * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
1056         generalize to handle any number of operands.
1057         (TB_parent_eq): Likewise.
1058
1059         * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
1060         (strip_builtin_expect): Likewise.
1061
1062         * function.c (gimplify_parameters): Use build_call_expr.
1063
1064         * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
1065         instead of TREE_CODE_LENGTH.
1066
1067         * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
1068         (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
1069
1070         * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
1071         iterators.
1072
1073         * gimplify.c (build_stack_save_restore): Use build_call_expr.
1074         (gimplify_decl_expr): Likewise.
1075         (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
1076         Use new CALL_EXPR iterators.
1077         (gimplify_modify_expr_to_memcpy): Use build_call_expr.
1078         (gimplify_modify_expr_to_memset): Likewise.
1079         (gimplify_variable_sized_compare): Likewise.
1080         (gimplify_omp_atomic_fetch_op): Likewise.
1081         (gimplify_omp_atomic_pipeline): Likewise.
1082         (gimplify_omp_atomic_mutex): Likewise.
1083         (gimplify_function_tree): Likewise.
1084
1085         * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
1086         (call_expr_flags): Likewise.
1087         (expand_call): Likewise.
1088
1089         * except.c (expand_builtin_eh_return_data_regno): Pass entire
1090         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
1091         accessors.
1092
1093         * coverage.c (create_coverage): Use build_call_expr.
1094
1095         * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
1096         (temp_call_expr_obstack): New.
1097         (pool_copy_list): Delete.
1098         (temp_copy_call_expr): New.
1099         (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
1100         CALL_EXPR accessors.  Get rid of special goo for copying argument
1101         lists and use temp_copy_call_expr instead.
1102         (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
1103         CALL_EXPR accessors.
1104         (create_expression_by_pieces): Likewise.  Use build_call_array
1105         to construct the result instead of fold_build3.
1106         (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
1107         dealing with argument lists.
1108         (init_pre): Remove references to expression_node_pool and
1109         list_node_pool.  Init temp_call_expr_obstack instead.
1110         (fini_pre): Remove references to expression_node_pool and
1111         list_node_pool.
1112
1113         * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
1114         and walk arguments explicitly instead of as a list.
1115
1116         * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
1117         (mx_register_decls): Likewise.
1118         (mudflap_register_call): Likewise.
1119         (mudflap_finish_file): Likewise.
1120
1121         * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
1122         (ipa_callsite_compute_param): Likewise.
1123
1124         * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
1125         accessors and constructor.
1126
1127         * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
1128         accessors and constructor.
1129         (convert_tramp_reference): Likewise.
1130         (convert_call_expr): Likewise.
1131         (finalize_nesting_tree_1): Likewise.
1132
1133         * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
1134         accessors.
1135
1136         * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
1137
1138         * tree-inline.c (initialize_inlined_parameters): Pass entire
1139         CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
1140         accessors.
1141         (estimate_num_insns_1): Use new CALL_EXPR accessors.
1142         (expand_call_inline): Tidy up call to initialize_inlined_parameters.
1143
1144         * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
1145         TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1146         (vectorizable_reduction): Likewise.
1147         (vectorizable_call): Use new CALL_EXPR iterators.
1148         (vectorizable_conversion): Use build_call_expr.
1149         (vectorizable_operation): Use TREE_OPERAND_LENGTH.
1150         (vect_gen_widened_results_half): Use build_call_expr.
1151         (vect_setup_realignment): Likewise.
1152         (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
1153
1154         * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
1155         (pass_through_call): Likewise.
1156         (compute_object_sizes): Likewise.  Use fold_call_expr instead of
1157         fold_builtin.
1158
1159         * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
1160         (tree_gen_pow2_profiler): Likewise.
1161         (tree_gen_one_value_profiler): Likewise.
1162         (tree_gen_ic_func_profiler): Likewise.
1163         (tree_gen_average_profiler): Likewise.
1164         (tree_gen_ior_profiler): Likewise.
1165
1166         * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
1167         (find_func_aliases): Use new CALL_EXPR accessors.  Add case
1168         tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
1169
1170         * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
1171         of TREE_CODE_LENGTH.
1172
1173         * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
1174         of TREE_CODE_LENGTH.
1175
1176         * convert.c (convert_to_real): Use new CALL_EXPR accessors and
1177         constructor.
1178         (convert_to_integer): Likewise.
1179
1180         * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
1181         accessors.
1182
1183 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1184             Brooks Moses  <brooks.moses@codesourcery.com>
1185             Lee Millward  <lee.millward@codesourcery.com>
1186
1187         * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
1188         accessors.
1189         * config/frv/frv.c (frv_expand_builtin): Likewise.
1190         * config/s390/s390.c (s390_expand_builtin): Likewise.
1191
1192         * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
1193         (sparc_expand_builtin): Use new CALL_EXPR accessors.
1194
1195         * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
1196         (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
1197         instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
1198         (ix86_expand_store_builtin): Likewise.
1199         (ix86_expand_unop_builtin): Likewise.
1200         (ix86_expand_unop1_builtin): Likewise.
1201         (ix86_expand_sse_compare): Likewise.
1202         (ix86_expand_sse_comi): Likewise.
1203         (ix86_expand_vec_init_builtin): Likewise.
1204         (ix86_expand_vec_ext_builtin): Likewise.
1205         (ix86_expand_vec_set_builtin): Likewise.
1206         (ix86_expand_builtin): Use new CALL_EXPR accessors.
1207
1208         * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
1209         * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
1210
1211         * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
1212         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1213         (iq2000_expand_builtin): Use new CALL_EXPR accessors.
1214
1215         * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
1216         build_call_expr.
1217         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
1218         (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
1219         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1220         (altivec_expand_abs_builtin): Likewise.
1221         (rs6000_expand_binop_builtin): Likewise.
1222         (altivec_expand_predicate_builtin): Likewise.
1223         (altivec_expand_lv_builtin): Likewise.
1224         (spe_expand_stv_builtin): Likewise.
1225         (altivec_expand_stv_builtin): Likewise.
1226         (rs6000_expand_ternop_builtin): Likewise.
1227         (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
1228         (altivec_expand_st_builtin): Likewise.
1229         (altivec_expand_dst_builtin): Likewise.
1230         (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
1231         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1232         (altivec_expand_vec_set_builtin): Likewise.
1233         (altivec_expand_vec_ext_builtin): Likewise.
1234         (altivec_expand_builtin): Use new CALL_EXPR accessors.
1235         (spe_expand_builtin): Likewise.
1236         (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
1237         arglist.  Use new CALL_EXPR accessors.  Fix callers.
1238         (spe_expand_evsel_builtin): Likewise.
1239         (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
1240         FCFSX cases must construct whole new CALL_EXPR, not just arglist.
1241
1242         * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
1243         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1244         (arm_expand_unop_builtin): Likewise.
1245         (arm_expand_builtin): Use new CALL_EXPR accessors.
1246
1247         * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
1248         accessors.
1249
1250         * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
1251         instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
1252         (bfin_expand_unop_builtin): Likewise.
1253         (bfin_expand_builtin): Use new CALL_EXPR accessors.
1254
1255 2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
1256             Brooks Moses  <brooks.moses@codesourcery.com>
1257             Lee Millward  <lee.millward@codesourcery.com>
1258
1259         * c-semantics.c (build_stmt): Add internal diagnostic check.
1260
1261         * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
1262         accessors.  Print arguments explicitly instead of as a list.
1263
1264         * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
1265
1266         * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
1267         (c_finish_omp_flish): Likewise.
1268
1269         * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
1270         arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
1271         instead of TREE_CODE_LENGTH.
1272         (check_function_arguments_recurse): Use new CALL_EXPR accessors.
1273         (c_warn_unused_result): Likewise.
1274
1275 2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1276
1277         PR c/26494
1278         * doc/invoke.texi (Warning Options): Remove
1279         -Werror-implicit-function-declaration.
1280         (Wimplicit-function-declaration): Update description.
1281         * opts.c (common_handle_option): Move handling of -Werror=* to...
1282         (enable_warning_as_error): ...here.
1283         * opts.h (enable_warning_as_error): Declare.
1284         * c-decl.c (implicit_decl_warning): Unless
1285         -Wno-implicit-function-declaration is given, emit a pedwarn if
1286         -std=c99 or emit a warning if -Wimplicit-function-declaration.
1287         * c.opt (Wimplicit-function-declaration): Replace
1288         mesg_implicit_function_declaration with
1289         warn_implicit_function_declaration.
1290         * c-opts.c (c_common_handle_option):
1291         -Werror-implicit-function-declaration is exactly equal as
1292         -Werror=implicit-function-declaration.
1293         (set_Wimplicit): Replace mesg_implicit_function_declaration with
1294         warn_implicit_function_declaration.
1295         (c_common_post_options): -Wimplict-function-declaration is enabled
1296         by default by -std=c99, otherwise is disabled by default.
1297         * c-objc-common.c (c_objc_common_init): Remove flawed logic.
1298
1299 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1300
1301         * gimplify.c (gimplify_modify_expr): During gimplification, attach a
1302         DECL on the rhs to a DECL on the lhs for debug info purposes if the
1303         former is ignored but not the latter.
1304
1305 2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>
1306
1307         * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
1308         is made and the reference doesn't use the alias set of its type,
1309         do not create the temporary using that type.
1310
1311 2007-02-15  Aldy Hernandez  <aldyh@redhat.com>
1312
1313         * jump.c: Remove prototypes for delete_computation and
1314         delete_prior_computation.
1315
1316 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1317
1318         * jump.c (get_label_after): Delete.
1319         (get_label_before, delete_computation, delete_jump,
1320         delete_prior_computation, follow_jumps): Move...
1321         * reorg.c (delete_computation, delete_prior_computation): ... here...
1322         (get_label_before, delete_jump): ... making these static ...
1323         (follow_jumps): ... and simplifying this since it only runs after
1324         reload.
1325         * rtl.h (get_label_after, get_label_before, delete_jump,
1326         follow_jumps): Delete prototypes.
1327
1328 2007-02-15  Paolo Bonzini  <bonzini@gnu.org>
1329
1330         * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
1331
1332 2007-02-15  Nick Clifton  <nickc@redhat.com>
1333
1334         * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
1335         order to prevent it from being munged by the target.
1336
1337 2007-02-15  Uros Bizjak  <ubizjak@gmail.com>
1338
1339         * config/i386/i386.md: Remove misleading comment.
1340
1341 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1342
1343         * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
1344         reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
1345         invalid patterns.
1346
1347 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1348
1349         * tree-sra.c (instantiate_missing_elements): Canonicalize
1350         bit-field types.
1351         (sra_build_assignment): New.
1352         (generate_copy_inout, generate_element_copy,
1353         generate_element_zero, generate_one_element_init): Use it.
1354
1355 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1356
1357         * tree-sra.c (instantiate_missing_elements): Canonicalize
1358         bit-field types.
1359         (sra_build_assignment): New.
1360         (generate_copy_inout, generate_element_copy,
1361         generate_element_zero, generate_one_element_init): Use it.
1362
1363 2007-02-15  Alexandre Oliva  <aoliva@redhat.com>
1364
1365         * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
1366         limbo die nodes.
1367
1368 2007-02-14  Joseph Myers  <joseph@codesourcery.com>
1369
1370         * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
1371         types as aggregates not scalars.
1372         * function.c (assign_stack_temp_for_type): Likewise.
1373
1374 2007-02-14  Roger Sayle  <roger@eyesopen.com>
1375             Zdenek Dvorak  <dvorakz@suse.cz>
1376
1377         * tree-dump.c (dump_switch_p_1): Require exact match of the option
1378         name.
1379
1380 2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>
1381
1382         * passes.c (next_pass_1): Clear the next field of the copied
1383         pass structure.
1384
1385 2007-02-14  Richard Henderson  <rth@redhat.com>
1386
1387         * tree-sra.c (early_sra): New.
1388         (decl_can_be_decomposed_p): Deny va_list if early_sra.
1389         (tree_sra_early, pass_sra_early): New.
1390         * tree-pass.h (pass_sra_early): Declare.
1391         * passes.c (init_optimization_passes): Use it.
1392
1393 2007-02-14  Richard Guenther  <rguenther@suse.de>
1394
1395         * flags.h (issue_strict_overflow_warning): Convert to a macro.
1396
1397 2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>
1398
1399          PR tree-optimization/30771
1400         * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
1401         also phi nodes.
1402         (vect_analyze_operations): Induction phis can now be marked as
1403         used_in_loop.
1404         (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
1405         Update documentation accordingly.
1406
1407 2007-02-14  Nick Clifton  <nickc@redhat.com>
1408
1409         * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
1410         most 3 arguments are supported.
1411         (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
1412
1413 2007-02-13  Seongbae Park <seongbae.park@gmail.com>
1414
1415         * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
1416         Ensure dst->current is valid.
1417
1418 2007-02-13  Paul Brook  <paul@codesourcery.com>
1419
1420         * config.gcc: Add arm*-*-uclinux-*eabi.
1421         * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
1422         (SUBTARGET_EXTRA_LINK_SPEC): Define.
1423         (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
1424         (LINK_GCC_C_SEQUENCE_SPEC): Undef.
1425         (LINK_SPEC): Define.
1426         (LIB_SPEC): Define.
1427         * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
1428         register.
1429         * config/arm/uclinux-eabi.h: New file.
1430         * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
1431         * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
1432         based targets.
1433
1434 2007-02-13  Ian Lance Taylor  <iant@google.com>
1435
1436         * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
1437         * flags.h (warn_strict_overflow): Declare.
1438         (enum warn_strict_overflow_code): Define.
1439         (issue_strict_overflow_warning): New static inline function.
1440         * opts.c (warn_strict_overflow): New variable.
1441         (common_handle_option): Handle OPT_Wstrict_overflow and
1442         OPT_Wstrict_overflow_.
1443         * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
1444         OPT_Wall.
1445         * fold-const.c: Include intl.h.
1446         (fold_deferring_overflow_warnings): New static variable.
1447         (fold_deferred_overflow_warning): New static variable.
1448         (fold_deferred_overflow_code): New static variable.
1449         (fold_defer_overflow_warnings): New function.
1450         (fold_undefer_overflow_warnings): New function.
1451         (fold_undefer_and_ignore_overflow_warnings): New function.
1452         (fold_deferring_overflow_warnings_p): New function.
1453         (fold_overflow_warning): New static function.
1454         (make_range): Add strict_overflow_p parameter.  Change all
1455         callers.
1456         (extract_muldiv, extract_muldiv_1): Likewise.
1457         (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
1458         tree_expr_nonnegative_p.
1459         (fold_negate_expr): Call fold_overflow_warning.
1460         (fold_range_test): Likewise.
1461         (fold_comparison): Likewise.
1462         (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
1463         instead of tree_expr_nonnegative_p.
1464         (tree_expr_nonnegative_warnv_p): Rename from
1465         tree_expr_nonnegative_p, add strict_overflow_p parameter.
1466         (tree_expr_nonnegative_p): New function.
1467         (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
1468         strict_overflow_p parameter.
1469         (tree_expr_nonzero_p): New function.
1470         * passes.c (verify_interpass_invariants): New static function.
1471         (execute_one_pass): Call it.
1472         * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
1473         warnings.
1474         (number_of_iterations_exit, loop_niter_by_eval): Likewise.
1475         (estimate_numbers_of_iterations): Likewise.
1476         (scev_probably_wraps_p): Likewise.
1477         * tree-ssa-ccp.c: Include "toplev.h".
1478         (evaluate_stmt): Defer fold overflow warnings until we know we are
1479         going to optimize.
1480         (struct fold_stmt_r_data): Add stmt field.
1481         (fold_stmt_r): Defer fold overflow warnings until we know we
1482         optimized.
1483         (fold_stmt): Initialize stmt field of fold_stmt_r_data.
1484         (fold_stmt_inplace): Likewise.
1485         * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
1486         (cleanup_control_expr_graph): Defer fold overflow warnings until
1487         we know we are going to optimize.
1488         * tree-cfg.c (fold_cond_expr_cond): Likewise.
1489         * tree-ssa-threadedge.c (simplify_control_stmt_condition):
1490         Likewise.
1491         * tree-vrp.c (vrp_expr_computes_nonnegative): Call
1492         tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
1493         * tree-ssa-loop-manip.c (create_iv): Likewise.
1494         * c-typeck.c (build_conditional_expr): Likewise.
1495         (build_binary_op): Likewise.
1496         * tree-vrp.c (vrp_expr_computes_nonzero): Call
1497         tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
1498         (extract_range_from_unary_expr): Likewise.
1499         * simplify-rtx.c (simplify_const_relational_operation): Warn when
1500         assuming that signed overflow does not occur.
1501         * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
1502         * tree.h (tree_expr_nonnegative_warnv_p): Declare.
1503         (fold_defer_overflow_warnings): Declare.
1504         (fold_undefer_overflow_warnings): Declare.
1505         (fold_undefer_and_ignore_overflow_warnings): Declare.
1506         (fold_deferring_overflow_warnings_p): Declare.
1507         (tree_expr_nonzero_warnv_p): Declare.
1508         * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
1509         of warning options.
1510         (Warning Options): Document -Wstrict-overflow.
1511         * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
1512         (tree-ssa-ccp.o): Likewise.
1513         (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
1514         (fold-const.o): Depend on intl.h.
1515
1516 2007-02-13  Ian Lance Taylor  <iant@google.com>
1517
1518         PR middle-end/30751
1519         * lower-subreg.c (resolve_simple_move): Decompose subregs in
1520         addresses.
1521
1522 2007-02-13  Stuart Hastings  <stuart@apple.com>
1523
1524         * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
1525
1526 2007-02-13  Richard Henderson  <rth@redhat.com>
1527
1528         * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
1529         handled_component_p before looking for the indirect_ref.
1530
1531 2007-02-13  Richard Henderson  <rth@redhat.com>
1532
1533         * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
1534         remove flags clobber.
1535         (bswapsi2): New expander, emit code for !TARGET_BSWAP.
1536         (bswaphi_lowpart): New.
1537         (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
1538         remove TARGET_BSWAP test.  Delete expander of the same name.
1539
1540         * optabs.c (widen_bswap, expand_doubleword_bswap): New.
1541         (expand_unop): Use them.
1542
1543 2007-02-13  Uros Bizjak  <ubizjak@gmail.com>
1544
1545         * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
1546         *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
1547         *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
1548         *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
1549         *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
1550         *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
1551         *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
1552         assembler dialect choice from asm templates.
1553
1554 2007-02-12  Richard Henderson  <rth@redhat.com>
1555
1556         * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
1557         (fixuns_trunc<SSEMODEF>si2): Use it.
1558         * config/i386/sse.md (vec_setv4sf_0): Export.
1559         * config/i386/i386.c (ix86_build_const_vector): Export.
1560         (ix86_split_convert_uns_si_sse): Rename from
1561         ix86_expand_convert_uns_si_sse and rewrite as a splitter.
1562         * config/i386/i386-protos.h: Update.
1563
1564 2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1565
1566         PR c/29521
1567         * c-typeck.c (c_finish_return): Improve warning message.
1568
1569 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1570
1571         * alias.c (find_symbolic_term): Delete unused function.
1572
1573 2007-02-12  Uros Bizjak  <ubizjak@gmail.com>
1574
1575         * config/i386/i386.md (paritydi2, paritysi2): New expanders.
1576         (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
1577         (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
1578
1579 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1580
1581         * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
1582         * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
1583         the function, temporarily point the debug interface to the null one.
1584
1585 2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>
1586
1587         * dwarf2out.c (round_up_to_align): New static function.
1588         (field_byte_offset): Use it to round the offset.
1589
1590 2007-02-12  Richard Henderson  <rth@redhat.com>
1591
1592         * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
1593         (inswl_const): Export.
1594
1595 2007-02-12  Richard Henderson  <rth@redhat.com>
1596
1597         * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
1598         result mode of the libcall, convert back to outmode.
1599
1600 2007-02-12  Roger Sayle  <roger@eyesopen.com>
1601
1602         * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
1603         (bswapdi2): New define_expand to implement 32-bit implementation.
1604
1605 2007-02-12  Nick Clifton  <nickc@redhat.com>
1606
1607         * doc/invoke.texi (Overall Options): Document --help=.
1608         * gcc.c (target_help_flag): Rename to print_subprocess_flag.
1609         (cc1_options): Pass --help= on to cc1.
1610         (display_help): Add description of --help=.
1611         (process_command): Add code to handle --help=.  Allow translated
1612         --help and --target-help switches to be passed on to compiler
1613         sub-process.
1614         (main): Remove unused if statement.
1615         * opts.c (columns): Remove.
1616         (LEFT_COLUMN): Define.
1617         (wrap_help): Add columns argument.
1618         (print_filtered_help): Change parameters to be an include bitmask,
1619         an exclude bitmask, an any bitmask and the column width.  Move the
1620         code to display the params list here.  Add code to display the
1621         status of options rather than their descriptions if the quiet flag
1622         is not active.
1623         (print_specific_help): Change parameters to be an include bitmask,
1624         an exclude bitmask and an any bitmask.  Move code to look up the
1625         column width here.  Decide upon the title for an options listing.
1626         (common_handle_options): Add code to handle --help=.  Adapt code
1627         for --help and --target-help to use the revised form of the
1628         print_specific_help function.
1629         (print_help): Delete.
1630         (print_param_help): Delete.
1631         (print_switch): Delete.
1632         * opts.h (cl_lang_count): Add prototype.
1633         (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
1634         CL_MAX_OPTION_CLASS): New defines.
1635         * optc-gen.awk: Add construction of cl_lang_count.
1636         * c.opt: Add Warning attribute to warning options and Optimization
1637         attribute to optimization options.
1638         * common.opt: Likewise.
1639         Add --help=.
1640         Add -fhelp and -ftarget-help as aliases for the transformed --help
1641         and --target-help options.
1642         * opt-functions.awk: Add code to handle Warning and Optimization
1643         attributes.
1644
1645 2007-02-12  Richard Henderson  <rth@redhat.com>
1646
1647         * config/alpha/constraints.md: New file.
1648         * config/alpha/alpha.c: Include tm-constrs.h.
1649         (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
1650         alpha_extra_constraint): Remove.
1651         (alpha_emit_conditional_branch): Use satisfies_constraint_*.
1652         * config/alpha/alpha-protos.h: Update.
1653         * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
1654         (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
1655         (EXTRA_CONSTRAINT): Remove.
1656         * config/alpha/alpha.md: Include constraints.md.
1657         (adddi splitter): Use satisfies_constraint_*.
1658         * config/alpha/predicates.md (add_operand): Likewise.
1659         (sext_add_operand, addition_operation): Likewise.
1660
1661 2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>
1662
1663         PR tree-optimization/29145
1664         * tree-data-ref.c (base_addr_differ_p): Make us more conservative
1665         in our handling of restrict qualified pointers.
1666
1667 2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1668
1669         PR middle-end/7651
1670         * doc/invoke.texi (Wunused-value): Update description.
1671         (Wextra): Delete item.
1672         * opts.c (set_Wextra): Don't use the value of Wextra to set the
1673         value of Wunused-value.
1674         * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
1675         (c_finish_stmt_expr): Don't check extra_warnings.
1676         (emit_side_effect_warnings): The caller is responsible to check
1677         warn_unused_value.
1678
1679 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1680             Matt Thomas  <matt@3am-software.com>
1681
1682         * simplify-rtx.c (simplify_relational_operation_1): Correct typo.
1683
1684 2007-02-11  Roger Sayle  <roger@eyesopen.com>
1685
1686         * simplify-rtx.c (simplify_relational_operation_1): Optimize
1687         comparisons of POPCOUNT against zero.
1688         (simplify_const_relational_operation): Likewise.
1689
1690 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1691
1692         * doc/invoke.texi (Wextra): Delete outdated paragraph.
1693
1694 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1695
1696         * dwarf2out.c (root_type): Delete unused function.
1697
1698 2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1699
1700         * genattrtab.c (contained_in_p): Delete unused function.
1701         (write_expr_attr_cache): Likewise.
1702
1703 2007-02-11  Jan Hubicka  <jh@suse.cz>
1704
1705         * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
1706         previous patch.
1707
1708 2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>
1709
1710         * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
1711         to add the REG_EQ* note.
1712         * see.c (see_merge_one_use_extension): Likewise.
1713         * local-alloc.c (update_equiv_regs): Likewise.  Also don't
1714         turn REG_EQUAL notes into REG_EQUIV notes if the target
1715         register may have more than one set.
1716         * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
1717         * gcse.c (try_replace_reg): Likewise.
1718         * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
1719         * calls.c (fixup_tail_calls): Likewise.  Abort if there is
1720         more than one REG_EQUIV note.
1721         * reload1.c (gen_reload): Use set_unique_reg_note.
1722
1723 2007-02-11  Uros Bizjak  <ubizjak@gmail.com>
1724
1725         * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
1726         (ix86_builtin_conversion): New function.
1727
1728 2007-02-06  Mark Mitchell  <mark@codesourcery.com>
1729
1730         PR target/29487
1731         * tree.h (DECL_REPLACEABLE_P): New macro.
1732         * except.c (set_nothrow_function_flags): Likewise.
1733
1734 2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
1735             Ira Rosen  <irar@il.ibm.com>
1736             Dorit Nuzman  <dorit@il.ibm.com>
1737
1738         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
1739         * targhooks.c (default_builtin_vectorized_conversion): New.
1740         * targhooks.h (default_builtin_vectorized_function): New declaration.
1741         * target.h (struct vectorize): Add builtin_conversion field.
1742         * tree-vectorizer.h (type_conversion_vec_info_type): New enum
1743         stmt_vec_info_type value.
1744         (vectorizable_conversion): New declaration.
1745         * tree-vect-analyze.c (vect_analyze_operations): Add
1746         vectorizable_conversion call.
1747         * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
1748         * tree-vect-transform.c (vectorizable_conversion): New function.
1749         (vect_transform_stmt): Add case for type_conversion_vec_info_type.
1750         * tree-vect-generic.c (expand_vector_operations_1): Consider correct
1751         mode.
1752         * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
1753         (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
1754         (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
1755         or ALTIVEC_BUILTIN_VCFSX.
1756
1757 2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1758
1759         PR target/30634
1760         * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
1761         CONST_DOUBLE and operand 0 is a hard register.
1762         (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
1763         memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
1764         is a hard floating-point register.
1765
1766 2007-02-10  Richard Henderson  <rth@redhat.com>
1767             Jakub Jelinek  <jakub@redhat.com>
1768             Alexandre Oliva  <aoliva@redhat.com>
1769
1770         * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
1771         * builtin-types.def (BT_WORD): Make unsigned.
1772         (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
1773         * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
1774         (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
1775         * c-decl.c (grokdeclarator): Don't error if !have_tls.
1776         * c-parser.c (c_parser_omp_threadprivate): Likewise.
1777         * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
1778         emulated tls.
1779         * expr.c (emutls_var_address): New.
1780         (expand_expr_real_1): Expand emulated tls.
1781         (expand_expr_addr_expr_1): Likewise.
1782         * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
1783         * output.h (emutls_finish): Declare.
1784         * toplev.c (compile_file): Call it.
1785         * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
1786         address before wrapping in CONST.
1787         * varasm.c (emutls_htab, emutls_object_type): New.
1788         (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
1789         (get_emutls_object_name, get_emutls_object_type): New.
1790         (get_emutls_init_templ_addr, emutls_decl): New.
1791         (emutls_common_1, emutls_finish): New.
1792         (assemble_variable): When emulating tls, swap decls; generate
1793         constructor for the emutls objects.
1794         (do_assemble_alias): When emulating tls, swap decl and target name.
1795         (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
1796         for emulated tls.
1797         * varpool.c (decide_is_variable_needed): Look at force_output.
1798         Recurse for emulated tls.
1799         (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
1800         with decide_is_variable_needed.
1801         * emutls.c: New file.
1802         * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
1803         tls_object for real tls.
1804
1805 2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1806
1807         PR rtl-optimization/29599
1808         * reload1.c (eliminate_regs_in_insn): Take the destination
1809         mode into account when computing the offset.
1810
1811 2007-02-09  Stuart Hastings  <stuart@apple.com>
1812             Richard Henderson  <rth@redhat.com>
1813
1814         * gcc/config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1815         * gcc/config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
1816         * gcc/config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
1817         fixuns_truncdfhi2): New.
1818         (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
1819         (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
1820         (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
1821         (floatunssidf2): Allow nonimmediate source.
1822         * gcc/config/i386/sse.md (movdi_to_sse): New.
1823         (vec_concatv2di): Drop '*'.
1824         * gcc/config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
1825         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1826         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
1827         New.
1828         * gcc/config/i386/i386.c (ix86_expand_convert_uns_si_sse,
1829         ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
1830         ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
1831         ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
1832         (ix86_build_signbit_mask): Fix decl of v, refactor to call
1833         ix86_build_const_vector.
1834         (x86_emit_floatuns): Rewrite.
1835
1836 2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1837
1838         * genautomata.c (longest_path_length): Delete unused function.
1839         (struct state): Delete unused longest_path_length.
1840         (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
1841         (get_free_state): Delete unused.
1842
1843 2007-02-09  Jan Hubicka  <jh@suse.cz>
1844
1845         * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
1846         * doc/invoke.texi (inline-unit-growth): Update default value.
1847
1848         * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
1849         * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
1850         (rebuild_cgraph_edges): Likewise.
1851         * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
1852         (dump_cgraph_node): Dump frequencies.
1853         (cgraph_clone_edge): Add frequency scales.
1854         (cgraph_clone_node): Add freuqnecy.
1855         * cgraph.h (cgraph_edge): Add freuqnecy argument.
1856         (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
1857         (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
1858         * tree-pass.h (TODO_rebuild_frequencies): New constant.
1859         * cgraphunit.c (verify_cgraph_node): Verify frequencies.
1860         (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
1861         (save_inline_function_body): Likewise.
1862         * ipa-inline.c: inluce rtl.h
1863         (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
1864         (cgraph_edge_badness): Use frequencies.
1865         (cgraph_decide_recursive_inlining): Update clonning.
1866         (cgraph_decide_inlining_of_small_function): Dump frequency.
1867         * predict.c (estimate_bb_frequencies): Export.
1868         * predict.h (estimate_bb_frequencies): Declare.
1869         * tree-inline.c (copy_bb): Watch overflows.
1870         (expand_call_inline): Update call of cgraph_create_edge.
1871         (optimize_inline_calls): Use TODO flags to update frequnecies.
1872         * passes.h: Include predict.h
1873         (init_optimization_passes): Move profile ahead.
1874         (execute_function_todo): Handle TODO_rebuild_frequencies.
1875
1876 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1877
1878         * config/alpha/alpha.c (emit_insxl): Force the first operand of
1879         the insbl or inswl pattern into a register.
1880
1881 2007-02-09  Roger Sayle  <roger@eyesopen.com>
1882
1883         * config/ia64/ia64.md (bswapdi2): New define_insn.
1884
1885 2007-02-09  Richard Henderson  <rth@redhat.com>
1886
1887         * config/i386/constraints.md (Ym): New constraint.
1888         * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
1889         (movdi_1_rex64): Split sse and xmm general register moves from
1890         memory move alternatives.  Use conditional register constraints.
1891         (movsf_1, movdf_integer): Likewise.
1892         (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
1893         (movdf_integer_rex64): New.
1894         (pushsf_rex64): Fix output constraints.
1895         * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
1896         (sse2_stored): Likewise.
1897         (sse2_storeq_rex64): New.
1898         * config/i386/i386.c (x86_inter_unit_moves): Enable for not
1899         amd and not generic.
1900         (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
1901         for optimize_size.  Remove SF/DFmode hack.
1902
1903 2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
1904
1905         * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
1906         (bit_SSE4a): New.
1907
1908 2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
1909             Richard Sandiford  <richard@codesourcery.com>
1910
1911         * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
1912         (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
1913         (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
1914         m68k/t-mlib to tmake_file.
1915         (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
1916         (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
1917         (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
1918         Allow it to be cf or m68k.  Set m68k_arch_family.  If that
1919         variable is not empty, add t-$m68k_arch_family to tmake_file.
1920         Add t-mlibs to tmake_file.
1921         * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
1922         * config/m68k/t-cf: New file.
1923         * config/m68k/t-m68k: Likewise.
1924         * config/m68k/t-mlibs: Likewise.
1925         * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1926         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1927         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1928         * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1929         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
1930         Delete.
1931         * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
1932         (INSTALL_LIBGCC): Delete.
1933         (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
1934         * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1935         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1936         (M68K_MLIB_CPU): Define.
1937         * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
1938         (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
1939         (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.
1940
1941 2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
1942             Richard Guenther  <rguenther@suse.de>
1943
1944         PR middle-end/23361
1945         * fold-const.c (fold_comparison): Handle obfuscated comparisons
1946         against INT_MIN/INT_MAX.
1947         * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
1948         file if a loop is removed.
1949
1950 2007-02-09  Joseph Myers  <joseph@codesourcery.com>
1951
1952         * calls.c (store_one_arg): Pass correct alignment to
1953         emit_push_insn for non-BLKmode values.
1954         * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
1955         unaligned stack slot via a suitably aligned slot.
1956
1957 2007-02-08  DJ Delorie  <dj@redhat.com>
1958
1959         * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
1960         warnings.
1961         (legal_subregs): Use unsigned char, make const.
1962         (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.
1963
1964 2007-02-08  Paul Brook  <paul@codesourcery.com>
1965
1966         * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
1967         special interworking needed.
1968
1969 2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>
1970
1971         * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
1972         conditional to __SSE2__.
1973         (Entries below should have been added to first ChangeLog
1974         entry for amdfam10 dated 2007-02-05)
1975         * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
1976         defined.
1977         * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
1978         defined.
1979         * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
1980         defined.
1981
1982 2007-02-08  DJ Delorie  <dj@redhat.com>
1983
1984         * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
1985         * config/m32c/m32c.c (legal_subregs): New.
1986         (m32c_illegal_subreg_p): New.
1987         * config/m32c/predicates.md (m32c_any_operand): Use it to reject
1988         unsupported subregs of hard regs.
1989
1990 2007-02-08  Jan Hubicka  <jh@suse.cz>
1991
1992         * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
1993         the same one; always update histograms.
1994
1995 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
1996
1997         * passes.c (init_optimization_passes): Tidy comment.
1998
1999 2007-02-08  Roger Sayle  <roger@eyesopen.com>
2000
2001         * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
2002         strip zero_extend, bswap and rotates from POCOUNT's argument.
2003         <PARITY>: Likewise, we can strip not, bswap, sign_extend,
2004         zero_extend and rotates from PARITY's argument.
2005         <BSWAP>: A byte-swap followed by a byte-swap is an identity.
2006         (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
2007         of an integer constant at compile-time.
2008
2009 2007-02-08  Diego Novillo  <dnovillo@redhat.com>
2010
2011         PR 30562
2012         * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
2013         Update all users.
2014         * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
2015         users.
2016         (init_alias_info):
2017         * tree-ssa-live.c (remove_unused_locals): Do not remove
2018         TREE_ADDRESSABLE variables.
2019         * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
2020         * tree-ssa-operands.c (add_virtual_operand): Remove argument
2021         FOR_CLOBBER.  Update all users.
2022         If VAR has an associated alias set, add a virtual operand for
2023         it if no alias is found to conflict with the memory reference.
2024
2025 2007-02-07  Jan Hubicka  <jh@suse.cz>
2026             Robert Kidd <rkidd@crhc.uiuc.edu>
2027
2028         * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.
2029
2030 2007-02-07  Ian Lance Taylor  <iant@google.com>
2031
2032         * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
2033
2034 2007-02-07  Roger Sayle  <roger@eyesopen.com>
2035
2036         * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
2037         parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
2038         tablejumpdi, movsi_to_cr_one): Remove constraints from
2039         define_expand's match_operands.
2040
2041 2007-02-07  Roger Sayle  <roger@eyesopen.com>
2042
2043         * global.c (compute_regsets): Move declatation of "i" inside of
2044         #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.
2045
2046 2007-02-07  Jakub Jelinek  <jakub@redhat.com>
2047
2048         PR c++/30703
2049         * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
2050         of INDIRECT_REF <RESULT_DECL>.
2051
2052         * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.
2053
2054 2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
2055             Kaz Kojima  <kkojima@gcc.gnu.org>
2056
2057         PR target/29746
2058         * config/sh/sh.c (expand_cbranchdi4): Use scratch register
2059         properly.
2060         (sh_initialize_trampoline): Add parentheses to avoid a warning.
2061
2062 2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2063
2064         * doc/loop.texi: Document possibility not to perform disambiguation
2065         of loops with multiple latches.
2066         * cfgloopmanip.c (alp_enum_p): Removed.
2067         (add_loop): Handle subloops.  Use get_loop_body_with_size.
2068         (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
2069         * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
2070         the new forwarder block.
2071         (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
2072         Handle the case latch is NULL.
2073         * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
2074         when marking loop exits.
2075         * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
2076         be modified.
2077         * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
2078         disambiguate_loops_with_multiple_latches.
2079         * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
2080         before fix_loop_structure.
2081         * cfgloop.c: Include pointer-set.h and output.h.
2082         (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
2083         update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
2084         (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
2085         find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
2086         mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
2087         disambiguate_multiple_latches, get_loop_body_with_size,
2088         disambiguate_loops_with_multiple_latches): New functions.
2089         (flow_loop_dump): Dump multiple latch edges.
2090         (flow_loop_nodes_find): Handle loops with multiple latches.
2091         (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
2092         (glb_enum_p): Modified.
2093         (get_loop_body): Use get_loop_body_with_size.
2094         * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
2095         (AVOID_CFG_MODIFICATIONS): New constant.
2096         (disambiguate_loops_with_multiple_latches, add_loop,
2097         get_loop_body_with_size): Declare.
2098         * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.
2099
2100 2007-02-06  Seongbae Park <seongbae.park@gmail.com>
2101
2102         PR inline-asm/28686
2103         * global.c (compute_regsets): New function.
2104         (global_alloc): Refactored ELIMINABLE_REGSET
2105         and NO_GLOBAL_ALLOC_REGS computation out.
2106         (rest_of_handle_global_alloc): Call compute_regsets()
2107         for non-optimizing case.
2108
2109 2007-02-06  Richard Henderson  <rth@redhat.com>
2110
2111         * config/i386/constraints.md (Y2): Rename from Y.
2112         (Yi): New constraint.
2113         * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
2114         pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
2115         zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
2116         (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
2117         truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
2118         fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
2119         floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
2120         absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
2121         fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
2122         * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
2123         mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
2124         vec_extractv2si_1): Change Y constraints to Y2.
2125         * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
2126         vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
2127         Change Y constraints to Y2.
2128         (sse2_loadld): Change Y constraints to x.
2129
2130 2007-02-06  Roger Sayle  <roger@eyesopen.com>
2131
2132         * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
2133         (parity<mode>2): New define_expand using rs6000_emit_parity.
2134         * config/rs6000/rs6000.c (rs6000_emit_popcount,
2135         rs6000_emit_parity): New functions.
2136         * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
2137         rs6000_emit_parity): Prototype here.
2138
2139 2007-02-06  Ian Lance Taylor  <iant@google.com>
2140
2141         * lower-subreg.c (simple_move_operand): Reject CONST.
2142         (resolve_clobber): Call validate_change rather than directly
2143         assigning to XEXP (pat, 0).
2144
2145 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2146
2147         * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
2148         (tree-ssa-reassoc.o): Add pointer-set.h dependency.
2149         (tree-cfg.o): Remove hashtab.h dependency.
2150
2151         * tree-ssa-loop-ivopts.c: Include pointer-set.h.
2152         (struct ivopts_data): Change niters to pointer_map_t.
2153         (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
2154         (niter_for_exit): Create pointer_map on demand.  Change for
2155         pointer_map API.
2156         (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
2157         (free_loop_data): Destroy data->niters if created and reset field.
2158         (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
2159         (tree_ssa_iv_optimize_loop): Check for presence of stale data.
2160
2161         * tree-ssa-reassoc.c: Include pointer-set.h.
2162         (bb_rank): Change to long *.
2163         (operand_rank): Change to pointer_map_t.
2164         (find_operand_rank): Return long, -1 if not found.  Declare as inline.
2165         (insert_operand_rank): Accept long.
2166         (operand_entry_hash, operand_entry_eq): Remove.
2167         (get_rank): Return long.  Adjust for changes above.
2168         (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
2169         and operand_rank.
2170         (fini_reassoc): Delete operand_rank with pointer_map_destroy.
2171
2172         * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
2173         (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
2174         (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
2175         is not NULL.
2176         (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
2177         directly since it cannot be NULL.
2178         (get_vi_for_tree): Rewrite for pointer_map API.
2179         (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
2180         (init_alias_vars): Create vi_for_tree as pointer_map.
2181         (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.
2182
2183         * tree-cfg.c: Don't include hashtab.h.
2184         (edge_to_cases): Declare as pointer_map.
2185         (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
2186         Delete.
2187         (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
2188         (start_recording_case_labels): Create edge_to_cases as pointer_map.
2189         (end_recoding_case_labels): Cleanup edge_to_cases manually before
2190         destroying it.
2191         (record_switch_edge): Delete.
2192         (get_cases_for_edge): Adjust for pointer_map API, inline
2193         record_switch_edge (rewritten for new API), remove goto.
2194
2195 2006-02-06  Paolo Bonzini  <bonzini@gnu.org>
2196
2197         * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
2198         * tree-nested.c: Include pointer-set.h.
2199         (var_map_elt, var_map_eq, var_map_hash): Delete.
2200         (struct nesting_info): Remove GTY marker.  Change the two htab_t's
2201         to pointer_map_t's.
2202         (nesting_info_bitmap_obstack): New.
2203         (lookup_field_for_decl): Adjust for pointer_map API.
2204         (lookup_tramp_for_decl): Adjust for pointer_map API.
2205         (get_nonlocal_debug_decl): Adjust for pointer_map API.
2206         (get_local_debug_decl): Adjust for pointer_map API.
2207         (convert_nl_goto_reference): Adjust for pointer_map API.
2208         (convert_nl_goto_receiver): Adjust for pointer_map API.
2209         (create_nesting_tree): Create outside GGC space.  Create bitmap on
2210         the new obstack.  Create field_map and var_map as pointer_maps.
2211         (free_nesting_tree): Adjust for changes to create_nesting_tree.
2212         (root): Delete.
2213         (lower_nested_functions): Move root here, no need to NULL it.
2214         Initialize and release the obstack.
2215
2216 2007-02-06  Paolo Bonzini  <bonzini@gnu.org>
2217
2218         * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
2219         Remove prototypes and make them non-static.
2220         (struct tree_int_map): Remove.
2221         * tree.h (struct tree_int_map): Move here, turning TO into an
2222         unsigned int.
2223         (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.
2224
2225         * tree.h (TREE_COMPLEXITY): Remove.
2226         (struct tree_exp): Remove complexity field.
2227         * tree.c (build1_stat): Don't set it.
2228
2229 2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
2230             Victor Kaplansky  <victork@il.ibm.com>
2231
2232         * tree-vectorizer.c (vect_is_simple_use): Support induction.
2233         (vect_is_simple_reduction): Support reduction with induction as
2234         one of the operands.
2235         (vect_is_simple_iv_evolution): Fix formatting.
2236         * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
2237         formatting.  Don't mark induction phis for vectorization.
2238         (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
2239         * tree-vect-transform.c (get_initial_def_for_induction): New function.
2240         (vect_get_vec_def_for_operand): Support induction.
2241         (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
2242         induction case.
2243         (vectorizable_reduction): Support reduction with induction as one of
2244         the operands.
2245         (vectorizable_type_demotion): Use def-type of stmt argument rather
2246         than dummy def-type.
2247
2248         * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
2249         flag_tree_scev_cprop.
2250         * common.opt (tree-scev-cprop): New flag.
2251
2252         * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
2253         call to vect_get_new_vect_var.
2254
2255 2007-02-06  Ira Rosen  <irar@il.ibm.com>
2256
2257         * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
2258         vectype is not NULL.
2259         (vect_pattern_recog_1): Likewise.
2260
2261 2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2262
2263         * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
2264         (fold_negate_expr): Likewise.
2265
2266 2007-02-05  Alexandre Oliva  <aoliva@redhat.com>
2267
2268         PR debug/30189
2269         * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
2270         even if cv-qualification is the same.
2271
2272 2007-02-05  Geoffrey Keating  <geoffk@apple.com>
2273
2274         * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
2275         __enable_execute_stack on completion.
2276
2277 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2278
2279         * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
2280         athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
2281         athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
2282         athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
2283         athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
2284         athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
2285         athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
2286         athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.
2287
2288 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2289
2290         * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
2291         cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
2292         swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
2293         fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
2294         x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
2295         floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
2296         floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
2297         mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
2298         umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
2299         umuldi3_highpart_rex64, umulsi3_highpart_insn,
2300         umulsi3_highpart_zext, smuldi3_highpart_rex64,
2301         smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
2302         x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
2303         sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
2304         sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
2305         sqrtextenddfxf2_i387): Added amdfam10_decode.
2306
2307         * config/i386/athlon.md (athlon_idirect_amdfam10,
2308         athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
2309         athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
2310         athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
2311         athlon_ivector_store_amdfam10): New define_insn_reservation.
2312         (athlon_idirect_loadmov, athlon_idirect_movstore): Added
2313         amdfam10.
2314
2315 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2316
2317         * config/i386/athlon.md (athlon_call_amdfam10,
2318         athlon_pop_amdfam10, athlon_lea_amdfam10): New
2319         define_insn_reservation.
2320         (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
2321         athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
2322         athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.
2323
2324 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2325
2326         * config/i386/athlon.md (athlon_sseld_amdfam10,
2327         athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
2328         athlon_mmxssest_short_amdfam10): New define_insn_reservation.
2329
2330 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2331
2332         * config/i386/athlon.md (athlon_sseins_amdfam10): New
2333         define_insn_reservation.
2334         * config/i386/i386.md (sseins): Added sseins to define_attr type
2335         and define_attr unit.
2336         * config/i386/sse.md: Set type attribute to sseins for insertq
2337         and insertqi.
2338
2339 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2340
2341         * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
2342         ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
2343         ssecomi_load_amdfam10, ssecomi_amdfam10,
2344         sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
2345         define_insn_reservation.
2346         (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.
2347
2348 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2349
2350         * config/i386/athlon.md (cvtss2sd_load_amdfam10,
2351         cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
2352         cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
2353         cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
2354         cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
2355         cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
2356         define_insn_reservation.
2357
2358         * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
2359         cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
2360         cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
2361         cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
2362         cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.
2363
2364 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2365
2366         * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
2367         athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
2368         athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
2369         (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
2370         athlon_ssemul_load_k8): Added amdfam10.
2371
2372 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2373
2374         * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
2375         (x86_sse_unaligned_move_optimal): New variable.
2376
2377         * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
2378         m_AMDFAM10.
2379         (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
2380         for unaligned vector SSE double/single precision loads for AMDFAM10.
2381
2382 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2383
2384         * config/i386/i386.h (TARGET_AMDFAM10): New macro.
2385         (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
2386         Define TARGET_CPU_DEFAULT_amdfam10.
2387         (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
2388         (processor_type): Add PROCESSOR_AMDFAM10.
2389
2390         * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
2391         processor_type in config/i386/i386.h.
2392         Enable imul peepholes for TARGET_AMDFAM10.
2393
2394         * config.gcc: Add support for --with-cpu option for amdfam10.
2395
2396         * config/i386/i386.c (amdfam10_cost): New variable.
2397         (m_AMDFAM10): New macro.
2398         (m_ATHLON_K8_AMDFAM10): New macro.
2399         (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
2400         x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
2401         x86_promote_QImode, x86_integer_DFmode_moves,
2402         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2403         x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
2404         x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
2405         x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
2406         x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
2407         Enable/disable for amdfam10.
2408         (override_options): Add amdfam10_cost to processor_target_table.
2409         Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
2410         processor_alias_table.
2411         (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
2412         (ix86_adjust_cost): Add code for amdfam10.
2413
2414 2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>
2415
2416         * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
2417         instruction set feature flag. Add new (-mpopcnt) flag for popcnt
2418         instruction. Add new SSE4A (-msse4a) instruction set feature flag.
2419         * config/i386/i386.h: Add builtin definition for SSE4A.
2420         * config/i386/i386.md: Add support for ABM instructions
2421         (popcnt and lzcnt).
2422         * config/i386/sse.md: Add support for SSE4A instructions
2423         (movntss, movntsd, extrq, insertq).
2424         * config/i386/i386.c: Add support for ABM and SSE4A builtins.
2425         Add -march=amdfam10 flag.
2426         * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
2427         * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
2428         and amdfam10.
2429         * doc/extend.texi: Add documentation for SSE4A builtins.
2430
2431 2007-02-05  Bob Wilson  <bob.wilson@acm.org>
2432
2433         * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.
2434
2435 2007-02-05  Richard Guenther  <rguenther@suse.de>
2436
2437         * tree-vectorizer.h (vectorizable_function): Add argument type
2438         argument, change return type.
2439         * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
2440         * tree-vect-transform.c (vectorizable_function): Handle extra
2441         argument, return vectorized function decl.
2442         (build_vectorized_function_call): Remove.
2443         (vectorizable_call): Handle calls with result and argument types
2444         differing.  Handle loop vectorization factor correctly.
2445         * targhooks.c (default_builtin_vectorized_function): Adjust for
2446         extra argument.
2447         * targhooks.h (default_builtin_vectorized_function): Likewise.
2448         * target.h (builtin_vectorized_function): Add argument type
2449         argument.
2450         * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
2451         extra argument, allow vectorizing of lrintf.
2452         * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
2453         documentation of target hook.
2454
2455 2007-02-05  Hans-Peter Nilsson  <hp@axis.com>
2456
2457         PR target/30665
2458         * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
2459         ("*andhi_clear", andu (casesi+45)): For size-changed operand where
2460         memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.
2461
2462 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2463
2464         * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
2465         BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
2466         <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
2467         * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
2468         before canonicalizing sincos to cexpi.
2469         (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.
2470
2471 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2472
2473         * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
2474         Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
2475         (alpha_init_builtins): Use alpha_add_builtins to process tables.
2476
2477 2007-02-05  Roger Sayle  <roger@eyesopen.com>
2478
2479         * mips-tfile.c (initialize_init_file): Correct endianness test.
2480
2481 2007-02-05  Kazu Hirata  <kazu@codesourcery.com>
2482
2483         * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
2484         the 'y' constraint.
2485
2486 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2487
2488         * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
2489         saves in a PARALLEL before the register assignments.
2490
2491 2007-02-05  Richard Sandiford  <richard@codesourcery.com>
2492
2493         * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
2494         DWARF_FRAME_RETURN_COLUMN to be a general register.
2495         * dwarf2out.c (init_return_column_size): New function, split from...
2496         (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
2497         DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
2498         to be nongeneral registers.
2499         * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
2500         integer registers.
2501         (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
2502         (DWARF_ALT_FRAME_RETURN_COLUMN): Define.
2503
2504 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2505
2506         * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.
2507
2508 2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2509
2510         * cfgloopmanip.c (loop_delete_branch_edge): Removed.
2511         (remove_path): Use can_remove_branch_p and remove_branch instead
2512         of loop_delete_branch_edge.
2513         * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
2514         (tree_transform_and_unroll_loop): Remove dead branches immediately.
2515         Update profile using scale_dominated_blocks_in_loop.
2516         * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
2517         * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
2518         (can_remove_branch_p, remove_branch): Declare.
2519         * tree-cfg.c (tree_can_remove_branch_p): New function.
2520         (tree_cfg_hooks): Add tree_can_remove_branch_p.
2521         * cfgrtl.c (rtl_can_remove_branch_p): New function.
2522         (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.
2523
2524 2007-02-05  Jan Hubicka  <jh@suse.cz>
2525
2526         PR middle-end/30696
2527         * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
2528         nodes in cgraph, don't remove offline copy of the function.
2529
2530 2007-02-04  Jan Hubicka  <jh@suse.cz>
2531
2532         * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
2533         vectors might cause maybe_lookup_element_for_expr to be called
2534         on non-sra-candidate.
2535
2536 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2537
2538         * config/bfin/bfin-modes.def, config/bfin/bfin.c,
2539         config/bfin/bfin.md, config/bfin/predicates.md: Follow
2540         spelling conventions.
2541
2542 2007-02-04  Richard Guenther  <rguenther@suse.de>
2543
2544         PR middle-end/30636
2545         * fold-const.c (try_move_mult_to_index): Make sure to not
2546         overflow one dimension of a multi-dimensional array access.
2547
2548 2007-02-04  Jan Hubicka  <jh@suse.cz>
2549
2550         * passes.c (init_optimization_passes): Reindent.
2551
2552 2007-02-04  Jan Hubicka  <jh@suse.cz>
2553             Eric Botcazou  <ebotcazou@adacore.com>
2554
2555         * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
2556         (execute_fixup_cfg): Break out the abnormal goto code.
2557         * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
2558         (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
2559         (optimize_inline_calls): Call make_nonlocal_label_edges.
2560
2561 2007-02-04  Jan Hubicka  <jh@suse.cz>
2562
2563         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
2564         true when something was changed.
2565         (rename_ssa_copies): When something was changed, do
2566         TODO_remove_unused_locals.
2567         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
2568         add TODO_remove_unused_locals when instruction was removed.
2569
2570 2007-02-04  Jan Hubicka  <jh@suse.cz>
2571
2572         * ipa-inline.c (try_inline): Improve debug output; work on already
2573         inline edges too.
2574         (cgraph_decide_inlining_incrementally): Indent; improve debug output;
2575         call try_inline for already inlined edges too when flattening;
2576         inline also functions that make callee growth but overall unit size
2577         reduce.
2578
2579 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2580
2581         * config/m32c/bitops.md, config/m32c/jump.md,
2582         config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
2583         config/m32r/m32r.h, config/m32r/m32r.md,
2584         config/m32r/predicates.md, config/m68hc11/larith.asm,
2585         config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
2586         config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
2587         config/mips/mips-protos.h, config/mips/mips.c,
2588         config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
2589         config/mn10300/mn10300.h, config/mn10300/predicates.md,
2590         config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
2591         spelling conventions.
2592
2593         * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
2594         Follow spelling conventions.
2595
2596 2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>
2597
2598         * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
2599         warn about C++0x compatibility.
2600
2601 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
2602
2603         * config/h8300/h8300.c, config/h8300/h8300.h,
2604         config/h8300/h8300.md: Follow spelling conventions.
2605
2606 2007-02-03  Uros Bizjak  <ubizjak@gmail.com>
2607
2608         PR middle-end/30667
2609         * combine.c (try_combine): Do not substitute source operand
2610         with constants wider than 2 * HOST_BITS_PER_WIDE_INT.
2611
2612 2007-02-03  Jan Hubicka  <jh@suse.cz>
2613
2614         PR gcov-profile/30650
2615         * value-prof.c (stringop_block_profile): Fix handling of size counter;
2616         do not divide by zero for never executed counters.
2617         (tree_find_values_to_profile): Fix counters.
2618         * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.
2619
2620 2007-02-03  Ian Lance Taylor  <iant@google.com>
2621
2622         * lower-subreg.c (simple_move_operand): New static function,
2623         broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
2624         operands.
2625         (simple_move): Call simple_move_operand.
2626         (find_decomposable_subregs): Add special handling of MEMs.
2627         (can_decompose_p): Rename from cannot_decompose_p.  Reverse
2628         meaning of return value.  If we see a hard register, test whether
2629         it can store a word_mode value.  Change all callers.
2630
2631 2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2632
2633         * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
2634         ftrapv insns and expanders.
2635         (subdi3): Change define_expand operand 1 to arith11_operand, and
2636         operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
2637         pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
2638         handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
2639         respectively.
2640
2641         PR middle-end/30174
2642         * varasm.c (notice_global_symbol): Treat global objects as weak when
2643         flag_shlib is true.
2644
2645 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2646
2647         * emit-rtl.c (dconstpi): Delete.
2648         (dconstsqrt2): New.
2649         (init_emit_once): Delete dconstpi and init dconstsqrt2.
2650         * real.h (dconstpi): Delete.
2651         (dconstsqrt2): New.
2652         * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
2653         (fold_builtin_hypot): Likewise.
2654
2655 2007-02-03  Tom Tromey  <tromey@redhat.com>
2656
2657         PR driver/30246
2658         * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
2659         -gcoff3, -gxcoff3, -gvms3 implies -dD.
2660
2661 2007-02-03  Kazu Hirata  <kazu@codesourcery.com>
2662
2663         * c-decl.c, config/avr/avr.c, config/avr/avr.h,
2664         config/m68k/m68k.c, config/m68k/netbsd-elf.h,
2665         config/mn10300/mn10300.c, config/pdp11/pdp11.h,
2666         config/rs6000/cell.md, config/rs6000/darwin.h,
2667         config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
2668         config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
2669         jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
2670         tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
2671         typos.  Follow spelling conventions.
2672         * doc/invoke.texi: Follow spelling conventions.
2673
2674 2007-02-03  Roger Sayle  <roger@eyesopen.com>
2675
2676         * simplify-rtx.c (simplify_relational_operation_1): Implement some
2677         canonicalization transformations that attempt to simplify integer
2678         constant comparisons to become comparisons against zero.
2679
2680 2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2681
2682         * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
2683         fabs(x)*sqrt(2).
2684         * fold-const.c (fold_binary): Fix comment typos.  Fold complex
2685         (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).
2686
2687 2007-02-02  Mike Stump  <mrs@apple.com>
2688
2689         * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
2690         * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
2691         (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
2692         generate a branch island.
2693
2694 2007-02-02  Bob Wilson  <bob.wilson@acm.org>
2695
2696         * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
2697         (xtensa_legitimate_address_p): New.
2698         (xtensa_legitimize_address): New.
2699         (xtensa_output_addr_const_extra): New.
2700         * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
2701         (BASE_REG_P): New.
2702         (REG_OK_FOR_BASE_P): Use BASE_REG_P.
2703         (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
2704         (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
2705         (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
2706         * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
2707         (xtensa_legitimize_address): New.
2708         (xtensa_output_addr_const_extra): New.
2709
2710 2007-02-02  Steve Ellcey  <sje@cup.hp.com>
2711
2712         * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.
2713
2714 2007-02-02  Ian Lance Taylor  <iant@google.com>
2715
2716         * expmed.c (expand_divmod): Add comment.
2717
2718 2007-02-02  Kazu Hirata  <kazu@codesourcery.com>
2719
2720         * emit-rtl.c (renumber_insns): Remove.
2721         * flags.h: Remove the extern for flag_renumber_insns.
2722         * rtl.h: Remove the prototype for renumber_insns.
2723         * toplev.c (flag_renumber_insns): Remove.
2724
2725 2007-02-02  Hui-May Chang  <hm.chang@apple.com>
2726
2727         Revert for x86 darwin:
2728         2005-06-19  Uros Bizjak  <uros@kss-loka.si>
2729
2730         * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
2731         code before the following patch under TARGET_MACHO.
2732         (ix86_function_value_regno_p): Likewise.
2733
2734 2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2735
2736         * fold-const.c (negate_expr_p, fold_negate_expr): Handle
2737         COMPLEX_EXPR.
2738
2739 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2740
2741         PR target/29682
2742         * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
2743         general or fp registers.  Add comments.
2744         * config/ia64/ia64.md (reg_pred_prefix): Add comment.
2745
2746 2007-02-02  Paolo Bonzini  <bonzini@gnu.org>
2747
2748         * pointer-set.c (insert_aux): Only return insertion slot.
2749         (pointer_set_insert): Adjust.
2750         (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
2751         pointer_map_destroy, pointer_map_insert, pointer_map_contains,
2752         pointer_map_traverse): New.
2753         * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
2754         pointer_map_create,  pointer_map_destroy, pointer_map_insert,
2755         pointer_map_contains, pointer_map_traverse): Declare.
2756
2757 2007-02-02  Jakub Jelinek  <jakub@redhat.com>
2758
2759         PR middle-end/30473
2760         * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
2761         sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).
2762
2763 2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
2764
2765         * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.
2766
2767         (struct _dep): New type.
2768         (dep_t): New typedef.
2769         (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
2770         (DEP_STATUS): New access macro.  The macro with the same name was
2771         renamed to DEP_LINK_STATUS.
2772         (dep_init): Declare function
2773
2774         (struct _dep_link): New type.
2775         (dep_link_t): New typedef.
2776         (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
2777         (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
2778         (DEP_LINK_STATUS): New macro.
2779         (debug_dep_links): New debug function.
2780
2781         (struct _deps_list): New type.
2782         (deps_list_t): New typedef.
2783         (DEPS_LIST_FIRST): New access macro.
2784         (FOR_EACH_DEP_LINK): New cycle macro.
2785         (create_deps_list, free_deps_list, delete_deps_list): Declare
2786         functions.
2787         (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
2788         (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
2789         (copy_deps_list_change_con): Ditto.
2790
2791         (move_dep_link): Declare function.
2792
2793         (struct _dep_node): New type.
2794         (dep_node_t): New typedef.
2795         (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.
2796
2797         (struct haifa_insn_data.back_deps): New field to hold backward
2798         dependencies of the insn.
2799         (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
2800         to deps_list_t.
2801         (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
2802         Change its type to deps_list_t.
2803         (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
2804         (INSN_DEPEND): Rename to INSN_FORW_DEPS.
2805         (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.
2806
2807         (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.
2808
2809         (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.
2810
2811         (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
2812         all callers.
2813         (dep_cost): Declare.
2814
2815         * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
2816         (ds_to_dk, dk_to_ds): New functions.
2817
2818         (init_dep_1): New static function.
2819         (init_dep): New function.
2820         (copy_dep): New static function.
2821
2822         (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
2823         functions.
2824         (detach_dep_link): New static function.
2825         (move_dep_link): New function.
2826
2827         (dep_links_consistent_p, dump_dep_links): New static functions.
2828         (debug_dep_links): New debugging function.
2829
2830         (deps_obstack, dl_obstack, dn_obstack): New static variables.
2831
2832         (alloc_deps_list, init_deps_list): New static functions.
2833         (create_deps_list): New function.
2834         (clear_deps_list): New static function.
2835         (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
2836         (deps_list_consistent_p, dump_deps_list): New static functions.
2837         (debug_deps_list): New function.
2838         (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
2839         functions.
2840         (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.
2841
2842         (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
2843         use new scheduler dependencies lists.
2844         (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
2845         (sched_analyze): Ditto.  Initialize dependencies lists.
2846         (add_forw_dep, compute_forward_dependences): Update to use new
2847         scheduler dependencies lists.
2848
2849         (init_dependency_caches): Init deps_obstack.
2850         (free_dependency_caches): Free deps_obstack.
2851
2852         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
2853         new scheduler dependencies lists.
2854         (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
2855         (add_back_forw_dep, delete_back_forw_dep): Ditto.
2856
2857         * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
2858         Update to use new scheduler dependencies lists.
2859         (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
2860         (debug_dependencies): Ditto.
2861         (schedule_region): Update comments.
2862
2863         * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
2864         scheduler dependencies lists.
2865         (schedule_ebb): Update comments.
2866
2867         * rtl.def (DEPS_LIST): Remove.
2868
2869         * lists.c (unused_deps_list): Remove.
2870         (free_list): Update assertions.
2871
2872         (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
2873         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2874
2875         * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
2876         (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.
2877
2878         * haifa-sched.c (comments): Update.
2879         (insn_cost1): Remove.  Inline the code into insn_cost ().
2880         (insn_cost): Update to use new scheduler dependencies lists.  Move
2881         processing of the dependency cost to dep_cost ().
2882         (dep_cost): New function.  Use it instead of insn_cost () when
2883         evaluating cost of the dependency.  Use compatible interface to
2884         interact with the target.
2885         (priority): Update to use new scheduler dependencies lists.
2886         (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
2887         with greater number of insns that depend on the insn.
2888         (schedule_insn): Update to use new scheduler dependencies lists.  Add
2889         code to free backward dependencies lists.  Inline and optimize code
2890         from resolve_dep () - see PR28071.
2891         (ok_for_early_queue_removal): Update to use new scheduler dependencies
2892         lists.  Update call to targetm.sched.is_costly_dependence hook.
2893
2894         (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
2895         scheduler dependencies lists.
2896
2897         (resolve_dep): Remove.  Move the logic to schedule_insn ().
2898         (init_h_i_d): Initialize dependencies lists.
2899
2900         (process_insn_depend_be_in_spec): Rename to
2901         process_insn_forw_deps_be_in_spec.  Update to use new scheduler
2902         dependencies lists.
2903         (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
2904         Update to use new scheduler dependencies lists.
2905         (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.
2906
2907         * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
2908         new scheduler dependencies lists.
2909         (build_intra_loop_deps): Ditto.
2910
2911         * target.h (struct _dep): Declare to use in
2912         gcc_target.sched.is_costly_dependence.
2913         (struct gcc_target.sched.adjust_cost): Fix typo.
2914         (struct gcc_target.sched.is_costly_dependence): Change signature to use
2915         single dep_t parameter instead of an equivalent triad.
2916         (struct gcc_target.sched.adjust_cost_2): Remove.
2917
2918         * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.
2919
2920         * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.
2921
2922         * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
2923         documentation.
2924         (TARGET_SCHED_ADJUST_COST_2): Remove documentation.
2925
2926         * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
2927         (REG_DEP_TRUE): Document.
2928
2929         * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
2930         Change signature to correspond to the targetm.sched.adjust_cost hook.
2931         Update use in TARGET_SCHED_ADJUST_COST_2.
2932         (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
2933         (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
2934         new scheduler dependencies lists.
2935         (ia64_gen_check): Ditto.
2936
2937         * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
2938         dependencies lists.
2939
2940         * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
2941         signature to correspond to the targetm.sched.is_costly_dependence hook.
2942         (is_costly_group): Update to use new scheduler dependencies lists.
2943
2944         * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
2945         instead of INSN_COST () macro.
2946
2947 2007-02-01  Ian Lance Taylor  <iant@google.com>
2948
2949         * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.
2950
2951 2007-02-01  Guy Martin  <gmsoft@gentoo.org>
2952
2953         * pa.md (tp_load): Correct mfctl instruction syntax.
2954
2955 2007-02-01  Geoffrey Keating  <geoffk@apple.com>
2956
2957         * config/rs6000/rs6000.c (rs6000_stack_info): Correct
2958         altivec_padding_size calculation on AIX.  Improve comment, add
2959         assert to verify that it's right.
2960
2961         * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
2962         64-bit.
2963
2964 2007-2-01  Seongbae Park  <seongbae.park@gmail.com>
2965
2966         PR inline-asm/28686
2967         * global.c (global_alloc): Add mising initialization of
2968         ELIMINABLE_REGSET.
2969
2970 2007-02-01  Roger Sayle  <roger@eyesopen.com>
2971
2972         * alias.c (init_alias_analysis): Correct whitespace.
2973         * bb-reorder.c (fix_edges_for_rarely_executed_code,
2974         partition_hot_cold_basic_blocks): Likewise.
2975         * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
2976         expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
2977         maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
2978         fold_builtin_snprintf_chk, fold_builtin_printf,
2979         fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
2980         do_mpfr_arg3, do_mpfr_sincos): Likewise.
2981         * cfgcleanup.c (cleanup_cfg): Likewise.
2982         * cfgexpand.c (tree_expand_cfg): Likewise.
2983         * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
2984         * function.c (get_next_funcdef_no): Likewise.
2985         * gengtype.c (main): Likewise.
2986         * genmodes.c (main): Likewise.
2987         * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
2988         * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
2989         * ifcvt.c (noce_emit_move_insn): Likewise.
2990         * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
2991         Likewise.
2992         * stor-layout.c (get_best_mode): Likewise.
2993         * tree-ssa-loop-niter.c (get_val_for): Likewise.
2994         * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
2995         scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
2996         perform_var_substitution, solve_graph): Likewise.
2997         * tree-vrp.c (vrp_finalize): Likewise.
2998
2999 2007-02-01  Ian Lance Taylor  <iant@google.com>
3000
3001         * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
3002         high part of a paradoxical subreg, return a constant zero.
3003
3004 2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>
3005
3006         * toplev.c (lang_dependent_init): Call init_set_costs.
3007         * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
3008
3009 2007-02-01  Richard Guenther  <rguenther@suse.de>
3010
3011         PR middle-end/30656
3012         * fold-const.c (fold_negate_expr): Allow negating a
3013         constant if overflow does not change.
3014
3015 2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3016
3017         * doc/c-tree.texi (Expression trees): Improve markup.
3018         * doc/tm.texi (Register Classes, Addressing Modes)
3019         (Floating Point): Fix spacing after abbreviations.  Fix some
3020         typos.
3021
3022 2007-02-01  Ben Elliston  <bje@au.ibm.com>
3023
3024         * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
3025         * doc/contrib.texi: Likewise.
3026         * doc/install.texi: Likewise.
3027
3028 2007-01-31  Richard Henderson  <rth@redhat.com>
3029             Ian Lance Taylor  <iant@google.com>
3030
3031         * lower-subreg.c: New file.
3032         * rtl.def (CONCATN): Define.
3033         * passes.c (init_optimization_passes): Add pass_lower_subreg and
3034         pass_lower_subreg2.
3035         * emit-rtl.c (update_reg_offset): New static function, broken out
3036         of gen_rtx_REG_offset.
3037         (gen_rtx_REG_offset): Call update_reg_offset.
3038         (gen_reg_rtx_offset): New function.
3039         * regclass.c: Revert patch of 2006-03-05, restoring
3040         reg_scan_update.
3041         (clear_reg_info_regno): New function.
3042         * dwarf2out.c (concatn_loc_descriptor): New static function.
3043         (loc_descriptor): Handle CONCATN.
3044         * common.opt (fsplit_wide_types): New option.
3045         * opts.c (decode_options): Set flag_split_wide_types when
3046         optimizing.
3047         * timevar.def (TV_LOWER_SUBREG): Define.
3048         * rtl.h (gen_reg_rtx_offset): Declare.
3049         (reg_scan_update): Declare.
3050         * regs.h (clear_reg_info_regno): Declare.
3051         * tree-pass.h (pass_lower_subreg): Declare.
3052         (pass_lower_subreg2): Declare.
3053         * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
3054         (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
3055         -fsplit-wide-types.
3056         * doc/rtl.texi (Regs and Memory): Document concat and concatn.
3057         * Makefile.in (OBJS-common): Add lower-subreg.o.
3058         (lower-subreg.o): New target.
3059
3060 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3061
3062         * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.
3063
3064 2007-01-31  Anatoly Sokolov <aesok@post.ru>
3065
3066         PR target/19087
3067         * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.
3068
3069 2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3070
3071         PR middle-end/29335
3072         * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.
3073
3074 2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>
3075
3076         * cfgloop.h: Include vec-prim.h.
3077         (enum li_flags): Remove LI_ONLY_OLD.
3078         (loop_iterator): Changed.
3079         (fel_next, fel_init): Iterate over loop tree.
3080         (FOR_EACH_LOOP_BREAK): New macro.
3081         * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
3082         FOR_EACH_LOOP.
3083         * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
3084         * modulo-sched.c (sms_schedule): Ditto.
3085         * tree-vectorizer.c (vectorize_loops): Ditto.
3086         * doc/loop.texi: Update information on loop numbering and behavior of
3087         FOR_EACH_LOOP wrto new loops.
3088         * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
3089         add_to_evolution_1): Test nestedness of loops instead of comparing
3090         their numbers.
3091         * tree-chrec.c (chrec_fold_plus_poly_poly,
3092         chrec_fold_multiply_poly_poly, chrec_evaluate,
3093         hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
3094         reset_evolution_in_loop): Ditto.
3095         * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.
3096
3097 2007-01-31  Dirk Mueller  <dmueller@suse.de>
3098
3099         * c-common.c (warn_about_parentheses): Separate warning about
3100         un-parenthized sequence of comparison operators from the one
3101         which is supposed to warn about x <= y <= z.
3102
3103 2007-01-31  Uros Bizjak  <ubizjak@gmail.com>
3104
3105         * optabs.h (enum optab_index): Add new OTI_isinf.
3106         (isinf_optab): Define corresponding macro.
3107         * optabs.c (init_optabs): Initialize isinf_optab.
3108         * genopinit.c (optabs): Implement isinf_optab using isinf?f2
3109         patterns.
3110         * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
3111         (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
3112         using isinf_optab.
3113         (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
3114         expand_builtin_interclass_mathfn.
3115         * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
3116         * config/i386/i386.md (UNSPEC_FXAM): New constant.
3117         (fxam<mode>2_i387): New insn pattern.
3118         (isinf<mode>2) New expander to implement isinf, isinff and isinfl
3119         built-in functions as x87 inline asm.
3120
3121 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3122
3123         * gcc/config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.
3124
3125 2007-01-30  Eric Christopher  <echristo@apple.com>
3126
3127         * config.gcc: Add geode.
3128
3129 2007-01-31  Kazu Hirata  <kazu@codesourcery.com>
3130
3131         * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
3132         ipa-inline.c, tree-profile.c, tree-ssa-live.c,
3133         tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
3134         value-prof.c: Fix comment typos.
3135
3136 2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3137
3138         PR c++/24745
3139         * doc/invoke.texi (Wpointer-arith): Document warning.
3140
3141 2007-01-30  Janis Johnson  <janis187@us.ibm.com>
3142
3143         * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
3144         the list of discrepancies from the draft TR.
3145
3146 2007-01-30  Dirk Mueller  <dmueller@suse.de>
3147
3148         PR c++/30601
3149         * doc/invoke.texi (-Wreturn-type): Update description to
3150         match new behavior.
3151
3152 2007-01-30  Richard Sandiford  <richard@codesourcery.com>
3153
3154         * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.
3155
3156 2007-01-30  Uros Bizjak  <ubizjak@gmail.com>
3157
3158         * builtins.c (expand_builtin_int_interclass_roundingfn): New function
3159         to handle optabs that operate on floating point input argument and
3160         output to integer output.
3161         (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
3162         (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
3163         (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
3164         expand_builtin_interclass_mathfn ().
3165         * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
3166         (ilogbsi2): Remove.
3167         (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
3168         ilogbl built-in functions as x87 intrinsics.
3169
3170 2007-01-30  Richard Guenther  <rguenther@suse.de>
3171
3172         PR middle-end/27657
3173         * dwarf2out.c (reference_to_unused): Query varpool if the
3174         variable was output.
3175
3176 2007-01-30  Richard Guenther  <rguenther@suse.de>
3177
3178         PR middle-end/30313
3179         * passes.c (execute_one_pass): Reset in_gimple_form to not
3180         confuse non-unit-at-a-time mode.
3181
3182 2007-01-29  Roger Sayle  <roger@eyesopen.com>
3183             Richard Guenther  <rguenther@suse.de>
3184
3185         * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
3186         avoid undefined behaviour on overflow.  Use force_fit_type_double
3187         to construct the constant with the specified TREE_OVERFLOW.
3188
3189 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3190
3191         * config/dfp-bit.c: Add parameterized support for fp exceptions.
3192         * config/dfp-bit.h: Ditto.
3193
3194 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3195
3196         * c-decl.c (pop_scope): Replace warnings with call to
3197         warn_for_unused_label.
3198         * c-common.h (warn_for_unused_label): Declare.
3199         * c-common.c (warn_for_unused_label): Define.
3200
3201 2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3202
3203         * tree-optimize.c (update_inlined_to_pointers): Delete unused
3204         function.
3205
3206 2007-01-29  Janis Johnson  <janis187@us.ibm.com>
3207
3208         * Makefile.in (USER_H): Remove decfloat.h.
3209         * ginclude/decfloat.h: Delete, moving contents to ...
3210         * ginclude/float.h: Add support for decimal floating point,
3211         guarded by __STDC_WANT_DEC_FP__.
3212
3213 2007-01-29  Mike Stump  <mrs@apple.com>
3214
3215         * doc/gccint.texi (Top): Rename Loop Representation to Loop
3216         Analysis and Representation to resolve case insensitive conflict.
3217         * doc/loop.texi (Loop Analysis and Representation): Likewise.
3218
3219 2007-01-28  Daniel Berlin  <dberlin@dberlin.org>
3220
3221         * tree.h (struct tree_memory_tag): Add aliases member.
3222         (MTAG_ALIASES): New macro.
3223         * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
3224         (add_may_alias): Remove pointer-set. Update for may_aliases being
3225         a bitmap.
3226         (mark_aliases_call_clobbered): Update for may_aliases being a
3227         bitmap.
3228         (compute_tag_properties): Ditto.
3229         (create_partition_for): Ditto.
3230         (compute_memory_partitions): Ditto.
3231         (dump_may_aliases_for): Ditto.
3232         (is_aliased_with): Ditto.
3233         (add_may_alias_for_new_tag): Ditto.
3234         (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
3235         (compute_is_aliased): New function.
3236         (compute_may_aliases): Call compute_is_aliased).
3237         (init_alias_info): Initialize alias_bitmap_obstack.
3238         (union_alias_set_into): New function.
3239         (compute_flow_sensitive_aliasing): Use union_aliases_into.
3240         (have_common_aliases_p): Rewrite to take two bitmaps and use
3241         intersection.
3242         (compute_flow_insensitive_aliasing): Stop using pointer-sets.
3243         Update for bitmaps.
3244         (finalize_ref_all_pointers): Update for add_may_alias changes.
3245         (new_type_alias): Ditto.
3246         * tree-flow-inline.h (may_aliases): Return a bitmap.
3247         * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
3248         * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
3249         may_aliases being a bitmap.
3250         * tree-flow.h (struct var_ann_d): Remove may_aliases member.
3251         may_aliases now returns a bitmap.
3252         * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
3253         being a bitmap.
3254         * tree-ssa-operands.c (add_virtual_operand): Update for
3255         may_aliases being a bitmap.
3256
3257 2007-01-29  Daniel Berlin  <dberlin@dberlin.org>
3258
3259         PR tree-optimization/30630
3260         * tree-ssa-structalias.c (do_complex_constraint): Mark correct
3261         variable as changed.
3262
3263 2007-01-29  Simon Martin  <simartin@users.sourceforge.net>
3264
3265         PR c++/28266
3266         * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
3267         expanded only once even if an error occurs.
3268
3269 2007-01-29  Ben Elliston  <bje@au.ibm.com>
3270
3271         * gcov-io.h (__gcov_indirect_call_profiler): Declare.
3272         (__gcov_average_profiler): Likewise.
3273         (__gcov_ior_profiler): Likewise.
3274         (__gcov_merge_ior): Likewise.
3275
3276 2007-01-28  Jan Hubicka  <jh@suse.cz>
3277
3278         * builtins.c (expand_builtin_memset): Fix typo in my last patch.
3279         * value-prof.c (stringop_block_profile): Likewise.
3280
3281 2007-01-28  Jan Hubicka  <jh@suse.cz>
3282
3283         * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
3284         variant handling histograms; add wrapper.
3285         (clear_storage_via_libcall): Export.
3286         (emit_block_move_hints): Break out from ...; add histograms.
3287         (emit_block_move): ... this one.
3288         (clear_storage_hints): Break out from ...; add histograms.
3289         (clear_storage): ... this one.
3290         (set_storage_via_memset): Handle histogram.
3291         * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
3292         (clear_storage_hints, clear_storage_via_libcall): Declare.
3293         (set_storage_via_setmem): Update prototype.
3294         * doc/md.texi (movmem, setmem): Document new arguments.
3295
3296         * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
3297         new histograms.
3298         (stringop_block_profile): New global function.
3299         (tree_stringops_values_to_profile): Profile block size and alignment.
3300         * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
3301         HIST_TYPE_IOR.
3302         (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
3303         (stringop_block_profile): Declare.
3304         * builtins.c: Include value-prof.h.
3305         (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
3306         * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
3307         (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
3308         (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
3309         * profile.c (instrument_values): Add new counters.
3310         * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
3311         calls.
3312         * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
3313         (tree_init_edge_profiler): Build new profilers.
3314         (tree_gen_average_profiler, tree_gen_ior_profiler): New.
3315         (pass_tree_profile): Add dump.
3316         (tree_profile_hooks): Update.
3317         * Makefile.in (LIBGCOV): Add new constants.
3318         * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
3319         __gcov_ior_profiler): New.
3320         * i386.md (movmem/setmem expanders): Add new optional arguments.
3321
3322 2007-01-28  David Edelsohn  <edelsohn@gnu.org>
3323
3324         * doc/md.texi (Standard Pattern Names): Document blockage pattern.
3325
3326 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3327
3328         * tree-ssa-loop-unswitch.c: Include tree-inline.h.
3329         (tree_unswitch_single_loop): Pass eni_size_weights to
3330         tree_num_loop_insns.
3331         * tree-ssa-loop-manip.c: Include tree-inline.h.
3332         (can_unroll_loop_p): Pass eni_size_weights to
3333         tree_num_loop_insns.
3334         * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
3335         Pass eni_size_weights to estimate_num_insns.
3336         * tree.h (init_inline_once): Export.
3337         * toplev.c (backend_init): Call init_inline_once.
3338         * cgraphunit.c (cgraph_process_new_functions,
3339         cgraph_analyze_function): Pass eni_inlining_weights to
3340         estimate_num_insns.
3341         * ipa-inline.c (compute_inline_parameters): Ditto.
3342         * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
3343         to estimate_num_insns.
3344         (try_unroll_loop_completely): Pass eni_size_weights to
3345         tree_num_loop_insns.
3346         * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
3347         ot estimate_num_insns.
3348         * tree-ssa-loop-prefetch.c: Include tree-inline.h.
3349         (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
3350         * tree-inline.c (eni_inlining_weights, eni_size_weights,
3351         eni_time_weights): New variables.
3352         (init_inline_once): Initialize them.
3353         (struct eni_data): Mew.
3354         (estimate_num_insns_1, estimate_num_insns): Use weights.
3355         * tree-inline.h (struct eni_weights_d): New.
3356         (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
3357         (estimate_num_insns): Declaration changed.
3358         * cfgloop.h (tree_num_loop_insns): Declaration changed.
3359         * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
3360         tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.
3361
3362 2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
3363
3364         * tree-data-ref.c (conflict_fn): Assert that the number of affine
3365         relations in the conflict function is valid.
3366
3367 2007-01-27  Ian Lance Taylor  <iant@google.com>
3368
3369         * common.opt: Add fstrict-overflow.
3370         * opts.c (decode_options): Set flag_strict_overflow if -O2.
3371         * flags.h (TYPE_OVERFLOW_WRAPS): Define.
3372         (TYPE_OVERFLOW_UNDEFINED): Define.
3373         (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
3374         Replace all uses.
3375         * tree.h (TYPE_TRAP_SIGNED): Don't define.
3376         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
3377         (fold_negate_expr): Likewise.
3378         (make_range): Likewise.
3379         (extract_muldiv_1): Likewise.
3380         (maybe_canonicalize_comparison): Likewise.
3381         (fold_comparison): Likewise.
3382         (fold_binary): Likewise.
3383         (tree_expr_nonnegative_p): Likewise.
3384         (tree_expr_nonzero_p): Likewise.
3385         * tree-vrp.c (compare_values): Likewise.
3386         (extract_range_from_binary_expr): Likewise.
3387         (extract_range_from_unary_expr): Likewise.
3388         * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
3389         Likewise.
3390         (nowrap_type_p): Likewise.
3391         * tree-scalar-evolution.c (simple_iv): Likewise.
3392         * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
3393         (build_range_check): Likewise.
3394         (extract_muldiv_1): Likewise.
3395         (fold_comparison): Likewise.
3396         * tree-vrp.c (vrp_int_const_binop): Likewise.
3397         (extract_range_from_unary_expr): Likewise.
3398         * convert.c (convert_to_integer): Likewise.
3399         * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
3400         (fold_comparison): Likewise.
3401         (fold_binary): Likewise.
3402         * optabs.c (optab_for_tree_code): Likewise.
3403         * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
3404         * simplify-rtx.c (simplify_const_relational_operation): Check
3405         flag_strict_overflow and flag_trapv.
3406         (simplify_const_relational_operation): Likewise.
3407         * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
3408         (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
3409         -fstrict-overflow.
3410