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1 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
2             Nathan Sidwell  <nathan@codesourcery.com>
3
4         * config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
5         (SUBTARGET_EXTRA_SPECS): New macros.
6         * config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
7         use %(asm_cpu_spec) instead.
8         * config/m68k/m68k-none.h (ASM_SPEC): Likewise.
9         * config/m68k/openbsd.h (ASM_SPEC): Likewise.
10         * config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
11         (EXTRA_SPECS): Rename to...
12         (SUBTARGET_EXTRA_SPECS): ...this.
13
14 2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
15             Richard Sandiford  <richard@codesourcery.com>
16             Julian Brown  <julian@codesourcery.com>
17
18         * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
19         (m68k-*-uclinux*, m68k-*-linux*, m68k-*-rtems*): Set default_m68k_cpu
20         to the configuration's default CPU.
21         (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*): Likewise.
22         Remove default masks.
23         (m680[012]0-*-*): Set the default with_cpu to the first part of
24         the target name.
25         (m68k*-*-*): Set the default with_cpu to m$default_m68k_cpu.
26         (m68k*-*-linux): Extend the --with-cpu handling to...
27         (m680[012]0-*-*, m68k*-*-*): ...these configurations.  Allow m68000
28         and m68010.  Don't set target_cpu_default2.
29         * doc/install.texi: Document --with-cpu for m68k.
30         * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Define.
31         * config/m68k/m68k-none.h (TARGET_CPU_DEFAULT, M68K_CPU_m68k)
32         (M68K_CPU_m68000, M68K_CPU_m68010, M68K_CPU_m68020, M68K_CPU_m68030)
33         (M68K_CPU_m68040, M68K_CPU_m68302, M68K_CPU_m68332, TARGET_DEFAULT)
34         (ASM_CPU_DEFAULT_SPEC, CC1_CPU_DEFAULT_SPEC): Delete.
35         (ASM_SPEC): Remove use of %(asm_cpu_default).
36         (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS, MULTILIB_DEFAULTS): Delete.
37         * config/m68k/linux.h (TARGET_DEFAULT): Delete.
38         (CPP_SPEC): Merge definitions.  Do not handle __HAVE_68881__ here.
39         * config/m68k/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Define
40         __HAVE_FPU__ if TARGET_HARD_FLOAT.
41         (TARGET_DEFAULT): Delete.
42         (EXTRA_SPECS): Delete cpp_cpu_default_spec, cpp_cpu_spec,
43         cpp_fpu_spec, asm_default_spec and netbsd_cpp_spec.
44         (CPP_CPU_SPEC): Delete.
45         (TARGET_VERSION): Merge definitions, using TARGET_68010 to pick
46         the appropriate string.
47         (CPP_CPU_DEFAULT_SPEC, ASM_DEFAULT_SPEC, CPP_FPU_SPEC): Delete.
48         (CPP_SPEC): Define to NETBSD_CPP_SPEC.
49         (ASM_SPEC): Don't use %(asm_default_spec).
50         * config/m68k/m68k.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
51         TARGET_DEFAULT and add MASK_68881.
52         * config/m68k/m68k.md: Remove mention of TARGET_DEFAULT from comments.
53
54 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
55
56         * config.gcc (m68010-*-netbsdelf*): Add MASK_68010.
57         (m68k*-*-netbsdelf*, m68k*-*-openbsd*, m68k*-linux*): Add
58         MASK_68010 alongside MASK_68020.
59         * doc/invoke.texi: Document -m68010.
60         * config/m68k/m68k.opt (m68010): New.
61         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define mc68010
62         if TUNE_68010.
63         (TUNE_68010): New macro.
64         * config/m68k/m68k-none.h (M68K_CPU_m68k, M68K_CPU_m68010)
65         (M68K_CPU_m68020, M68K_CPU_m68030, M68K_CPU_m68040)
66         (M68K_CPU_m68332): Add MASK_68010.
67         * config/m68k/linux.h (TARGET_DEFAULT): Add MASK_68010 to
68         fallback definition.
69         * config/m68k/netbsd-elf.h (CPP_CPU_SPEC): Remove now-redundant
70         defines.
71         * config/m68k/m68k.c (MASK_ALL_CPU_BITS): Add MASK_68010.
72         (m68k_handle_option): Handle OPT_m68010.  Add MASK_68010
73         to all entries that use MASK_68020.
74         (output_move_simode_const, output_move_himode, output_move_qimode)
75         (output_move_stricthi, output_move_strictqi): Use TARGET_68010
76         instead of TARGET_68020 to select clr behavior.  Remove comment
77         about there being no TARGET_68010.
78         * config/m68k/m68k.md: Likewise throughout.
79
80 2007-01-12  Julian Brown  <julian@codesourcery.com>
81
82         * config/m68k/m68k.h (TARGET_ISAB): New macro.
83         * config/m68k/m68k.c: Use TARGET_ISAB rather than TARGET_CFV4.
84         * config/m68k/m68k.md: Likewise.
85
86 2007-01-12  Julian Brown  <julian@codesourcery.com>
87
88         * config/m68k/m68k.h (LEGITIMATE_INDEX_P, LEGITIMIZE_ADDRESS): Use
89         TARGET_COLDFIRE_FPU instead of TARGET_CFV4E.
90
91 2007-01-12  Julian Brown  <julian@codesourcery.com>
92
93         * config/m68k/m68k.h (TUNE_68040_60): New macro.
94         * config/m68k/m68k.c (standard_68881_constant_p): Use it.
95         * config/m68k/m68k.md: Likewise.
96
97 2007-01-12  Julian Brown  <julian@codesourcery.com>
98             Richard Sandiford  <richard@codesourcery.com>
99
100         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Use TUNE_68030
101         instead of TARGET_68030, TUNE_68040 instead of TARGET_68040,
102         TUNE_68060 instead of TARGET_68060 and TUNE_CPU32 instead of
103         TARGET_CPU32.
104         (TARGET_CPU32): Rename to...
105         (TUNE_CPU32): ...this.
106         (TUNE_68000_10, TUNE_68030, TUNE_68040, TUNE_68060)
107         (TUNE_CFV2): New macros.
108         * config/m68k/netbsd-elf.h (LONG_DOUBLE_TYPE_SIZE): Simplify;
109         remove conditions that are implied by TARGET_68020.
110         * config/m68k/m68k.c (m68k_output_function_prologue): Use TUNE_68040
111         instead of TARGET_68040 and TUNE_CPU32 instead of TARGET_CPU32.
112         (m68k_output_function_epilogue): Likewise.
113         (m68k_rtx_costs): Likewise.  Use TUNE_68060 instead of TARGET_68060
114         and TUNE_CFV2 instead of TARGET_5200.  Use TUNE_68000_10 instead of
115         "!TARGET_68020 && !TARGET_COLDFIRE" to choose between 68000 and
116         non-68000 timings.  Refactor multiplication and division costs.
117         (output_addsi3): Use TUNE_68040 instead of TARGET_68040 and
118         TUNE_CPU32 instead of TARGET_CPU32.
119         (standard_68881_constant_p): Use TUNE_68040 instead of TARGET_68040
120         and TUNE_68060 instead of TARGET_68060.
121         * config/m68k/m68k.md: Use TUNE_68040 instead of TARGET_68040,
122         TUNE_68060 instead of TARGET_68060, and TUNE_CPU32 instead of
123         TARGET_CPU32.
124         (movsi_const0): Use TUNE_68000_10 rather than "!TARGET_68020
125         && !TARGET_COLDFIRE" to choose between moveq and clr.
126         Likewise in the unnamed movsf pattern.
127         (ashlsi_17_24, lshrsi_17_24): Guard with TUNE_68000_10 rather than
128         "!TARGET_68020 && !TARGET_COLDFIRE".  Likewise the unnamed
129         ashiftrt pattern.
130
131 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
132
133         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Increase amount
134         of tabbing before backslashes.
135
136 2007-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
137
138         * pa-linux.h (ASM_OUTPUT_INTERNAL_LABEL): Undefine.
139         * pa.h (ASM_OUTPUT_LABEL): Output colon when using GAS.
140         (ASM_OUTPUT_INTERNAL_LABEL): Define.
141
142 2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>
143
144         * tree-ssa-loop-ivopts.c (extract_cond_operands): Split from
145         find_interesting_uses_cond.
146         (find_interesting_uses_cond): Use extract_cond_operands.
147         (rewrite_use_compare): Use extract_cond_operands and
148         force_gimple_operand_bsi.  Do not call update_stmt.
149         (determine_use_iv_cost_condition): Use extract_cond_operands.
150         Return cheaper of using original bound and changing the exit bound.
151
152 2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>
153
154         PR tree-optimization/29516
155         * tree-ssa-address.c (tree_mem_ref_addr, add_to_parts,
156         most_expensive_mult_to_index, addr_to_parts,
157         create_mem_ref, maybe_fold_tmr): Make the type of
158         fields of TARGET_MEM_REF sizetype.
159         (move_fixed_address_to_symbol, move_pointer_to_base):
160         New functions.
161         * tree.def (TARGET_MEM_REF): Add comment on types of
162         the operands.
163
164 2007-01-11  Joseph Myers  <joseph@codesourcery.com>
165
166         * c-common.c (vector_types_convertible_p): Treat opaque types as
167         always convertible if they have the same size, but not otherwise.
168
169 2007-01-11  Steven Bosscher  <steven@gcc.gnu.org>
170
171         * ifcvt.c (struct noce_if_info): Add comments to the fields.
172         Remove the b_unconditional field.
173         (noce_try_sign_mask): Do not look at b_unconditional.
174         (noce_process_if_block): Do not use merge_if_blocks.  Update
175         the CFG here.  Do not set b_unconditional.
176         (cond_move_process_if_block): Likewise.
177         (find_cond_trap): Likewise.
178         (check_cond_move_block): Require simple jump insns at the end
179         of the basic block.
180
181 2007-01-11  Jan Hubicka  <jh@suse.cz>
182
183         PR tree-optimization/1046
184         * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
185         when alias info is not ready.
186         (pass_tail_recursion): Do not require aliasing.
187         * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
188         * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
189         * tree-ssa-copy.c (pass_copy_prop): Likewise.
190         * tree-ssa-forwprop.c (pass_forwprop): Likewise.
191         * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
192         * passes.c (init_optimization_passes): Execute rename_ssa_copies,
193         ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
194         before inlining.
195         * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
196         When aliasing is not build, mark statement as volatile.
197
198 2007-01-11  Tom Tromey  <tromey@redhat.com>
199
200         PR preprocessor/15185, PR preprocessor/20989:
201         * doc/cppopts.texi <-MT>: Update description of algorithm for
202         computing default target.
203         <-M, -MD>: Reword "basename" text.
204
205 2007-01-11  Roger Sayle  <roger@eyesopen.com>
206
207         * builtins.c (expand_builtin_pow, expand_builtin_powi,
208         fold_builtin_cabs, fold_builtin_sqrt, fold_builtin_trunc,
209         fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
210         fold_builtin_int_int_roundingfn, fold_builtin_bitop,
211         fold_builtin_bswap, real_constp, fold_builtin_pow,
212         fold_builtin_powi, fold_builtin_signbit, fold_builtin_copysign,
213         do_mpfr_arg1, do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Replace
214         uses of the macro TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
215         * convert.c (convert_to_pointer): Likewise.
216         * expr.c (highest_pow2_factor, expand_expr_real_1): Likewise.
217         * fold-const.c (force_fit_type, fold_negate_expr, int_const_binop,
218         const_binop, fold_convert_const_int_from_int,
219         fold_convert_const_int_from_real,
220         fold_convert_const_real_from_real, sign_bit_p,
221         optimize_minmax_comparison, extract_muldiv_1, fold_div_compare,
222         fold_sign_changed_comparison, fold_unary, fold_comparison,
223         fold_binary, multiple_of_p, tree_Expr_non_zero_p,
224         fold_negate_const, fold_abs_const, fold_not_const): Likewise.
225         * print-tree.c (print_node_brief, print_node): Likewise.
226         * stor-layout.c (place_field, layout_type): Likewise.
227         * tree-chrec.c (keep_cast): Likewise.
228         * tree.c (build_vector, build_real, build_real_from_int_cst,
229         build_complex): Likewise.
230
231 2007-01-11  Roger Sayle  <roger@eyesopen.com>
232
233         * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
234         treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.
235
236 2007-01-11  Paolo Bonzini  <bonzini@gnu.org>
237
238         * configure.ac (strict1_warn): Rename to strict_warn.
239         (WERROR, --enable-werror, symlink hacks, stage1_cflags,
240         cc_set_by_configure, quoted_cc_set_by_configure,
241         stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
242         all_boot_languages, all_stagestuff): Remove.
243         (target_list): Remove bootstrap targets.
244         * Makefile.in (quickstrap): Unconditionally make a synonym of all.
245         (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
246         REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
247         SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
248         VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
249         STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
250         stage1_copy, stage2_build, stage2_copy, stageprofile_build,
251         stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
252         stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
253         bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
254         bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
255         unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
256         restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
257         cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
258         *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
259         stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
260         stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
261         risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
262         (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
263         (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
264         (mostlyclean): Adjust.
265         (clean, distclean): Don't mention bootstrap stuff.
266         * configure: Regenerate.
267         * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
268         java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
269         treelang/config-lang.in (stagestuff): Remove.
270         * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
271         stageprofile, stagefeedback, stagestuff): Remove mention.
272
273 2007-01-11  Nick Clifton  <nickc@redhat.com>
274
275         * config/mcore/predicates.md (mcore_general_movesrc_operand):
276         Accept CONSTs.
277         (mcore_general_movdst_operand): Do not accept CONST_INTs.
278         (mcore_arith_K_S_operand): Run the test for the S constraint not
279         the test for the M constraint.
280         (mcore_addsub_operand): Do not accept integer values that are
281         larger than 32 bits.
282         * config/mcore/mcore.md: Remove unused constraints from split.
283         (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
284         (addsi3): Likewise.
285         (allocate_stack): Likewise.
286         * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
287         operands to 32 bits.
288         (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
289         INTVAL.
290         (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
291         mcore_const_ok_for_inline, mcore_const_trick_uses_not,
292         try_constant_tricks, mcore_num_ones, mcore_num_zeros,
293         mcore_output_bclri, mcore_output_andn, output_inline_const,
294         mcore_output_move, mcore_output_movedouble): Likewise.
295         (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
296         (output_inline_const): Likewise.
297         (output_inline_const): Fix format strings used in sprintf
298         statements.
299         * config/mcore/mcore-protos.h: Update prototypes for changed
300         functions in mcore.c.
301         * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
302         HOST_WIDE_INT and not int.
303         (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
304         CONST_OK_FOR_N): Likewise.
305         (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
306         (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
307         an INTVAL.
308
309 2007-01-10  Jan Hubicka  <jh@suse.cz>
310
311         * tree-vrp.c (remove_range_assertions): Release defs.
312         * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
313         * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.
314
315 2007-01-10  Paul Brook  <paul@codesourcery.com>
316
317         * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
318         * config/arm/arm.md (mulsi3subsi): New insn.
319
320 2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>
321
322         * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
323         (tree_transform_and_unroll_loop): New.
324         * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
325         Declare.
326
327 2007-01-10  Robert Kennedy <jimbob@google.com>
328
329         * fold-const.c (fold_comparison): Fold comparisons like (x *
330         1000 < 0) to (x < 0).
331
332 2007-01-10  Ian Lance Taylor  <iant@google.com>
333
334         * tree-pretty-print.c (dump_generic_node): Print parentheses when
335         operands have the same priority.
336
337 2007-01-10  Tom Tromey  <tromey@redhat.com>
338
339         * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
340         (fold_binary): Likewise.
341         * langhooks.c (lhd_can_use_bit_fields_p): Removed.
342         * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
343         (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
344         (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
345         * langhooks.h (struct lang_hooks): Removed field
346         'can_use_bit_fields_p'.
347
348 2007-01-10  Ralf Cors├ępius <ralf.corsepius@rtems.org>
349
350         * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.
351
352 2007-01-10  Razya Ladelsky  <razya@il.ibm.com>
353
354         * function.c (get_last_funcdef_no): New function.
355         * function.h (get_last_funcdef_no): Declare. 
356         * tree-inline.c (initialize_cfun): Add initialization.
357         (tree_function_versioning): Cleanup.
358         
359 2007-01-10  Jan Hubicka  <jh@suse.cz>
360
361         * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
362         PHIs.
363
364 2007-01-10  Sa Liu  <saliu@de.ibm.com>
365             Ben Elliston  <bje@au.ibm.com>
366
367         * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
368         for SAVE_NONLOCAL and Pmode for any other save level.
369         * spu-protos.h (spu_restore_stack_block): Declare.
370         * spu.md (save_stack_block): Remove.
371         (restore_stack_block): Call spu_restore_stack_block.
372         * spu.c (spu_restore_stack_block): New function.
373         (spu_expand_epilogue): Remove old comment.
374
375 2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>
376
377         PR tree-optimization/30322
378         * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
379         (cand_value_at): Return the value as aff_tree.
380         (may_eliminate_iv): Convert the bound from aff_tree to tree.
381         * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
382         aff_combination_mult): New functions.
383         (aff_combination_add): Use aff_combination_add_cst.
384         (aff_combination_convert): Allow conversions to a wider type.
385         (tree_to_aff_combination): Handle BIT_NOT_EXPR.
386         * tree-affine.h (aff_combination_mult): Declare.
387
388 2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>
389
390         * doc/tm.texi: Update documentation to reflect reality of exec
391         and start file search behaviours. Update copyright year.
392         * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
393         header file directories.
394
395 2007-01-09  Uros Bizjak  <ubizjak@gmail.com>
396
397         * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
398         (*cosxf2): Rename to cosxf2_i387.
399
400         (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
401         using X87MODEF12 mode macro. Rename patterns to
402         *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
403         for SSE math.
404         (*cosdf2, *cossf2): Ditto.
405         (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
406         to match extended input operands.
407
408         (sincos<mode>3): New expander.
409
410         (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
411         insn patterns and corresponding splitters.
412
413 2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>
414
415         * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
416         (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.
417
418 2007-01-09  Nicolas Pitre  <nico@cam.org>
419
420         PR target/30173
421         * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.
422
423 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
424
425         * target.h (struct gcc_target): New field library_rtti_comdat.
426         * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
427         (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
428         * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
429         * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.
430
431 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
432
433         * doc/invoke.texi (Optimize Options): Correct description of -O0.
434
435 2007-01-08  Richard Guenther  <rguenther@suse.de>
436
437         * tree.h (force_fit_type_double): Export.
438         (force_fit_type): Remove.
439         * fold-const.c (force_fit_type_double): New function.
440         (force_fit_type): Remove.
441         (int_const_binop): Use it.
442         (fold_convert_const_int_from_int): Likewise.
443         (fold_convert_const_int_from_real): Likewise.
444         (fold_div_compare): Likewise.
445         (fold_sign_changed_comparison): Likewise.
446         (fold_unary): Likewise.
447         (fold_negate_const): Likewise.
448         (fold_abs_const): Likewise. 
449         (fold_not_const): Likewise.
450         * c-common.c (shorten_compare): Use force_fit_type_double.
451         * convert.c (convert_to_pointer): Likewise.
452
453 2007-01-08  Richard Guenther  <rguenther@suse.de>
454
455         * tree.h (build_int_cst_wide_type): Export.
456         * tree.c (build_int_cst_wide_type): New function.
457         (build_int_cst_wide): Fix comment.
458         * builtins.c (fold_builtin_object_size): Use build_int_cst
459         to build -1 or 0 of the correct type.  Use fit_double_type
460         to check for overflow.
461         * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
462         to build the mask.
463         (decode_field_reference): Likewise.
464         (all_ones_mask_p): Likewise.
465         (native_interpret_int): Use build_int_cst_wide_type.
466         (fold_binary): Use build_int_cst_type to build an all-ones
467         value.
468         * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.
469
470 2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>
471
472         * config/pa/t-pa64 (libgcc_stub.a): Use $(T).
473
474 2007-01-09  Ben Elliston  <bje@au.ibm.com>
475
476         * genautomata.c (STATS_OPTION): New option.
477         (stats_flag): New flag.
478         (gen_automata_option): Handle it.
479         (initiate_automaton_gen): Ditto.
480         (write_automata): Output statistics only if stats_flag is
481         set. Likewise, output time statistics only if time_flag is set.
482         * doc/md.texi (Processor pipeline description): Document new flag.
483
484 2007-01-08  Richard Guenther  <rguenther@suse.de>
485
486         * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
487         * tree.c (build_int_cst_type): Likewise.
488         (size_in_bytes): Don't call force_fit_type on the result.
489         (int_fits_type_p): Use fit_double_type.
490         * fold-const.c (fit_double_type): New function.
491         (force_fit_type): Use it.
492         * tree.h (fit_double_type): Export.
493
494 2007-01-08  Jan Hubicka  <jh@suse.cz>
495
496         * tree-vectorizer.c (gate_increase_alignment): Fix return type.
497         * ipa.c (function_and_variable_visibility): Fix return type.
498
499 2007-01-08  Richard Guenther  <rguenther@suse.de>
500
501         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
502         of offset to build the index.
503         * tree-pretty-print.c (dump_generic_node): Don't build negated
504         const just for printing.
505         * c-pretty-print.c (pp_c_integer_constant): Likewise.
506         * builtins.c (fold_builtin_int_roundingfn): Check if result
507         fits the type by using force_fit_type and comparing the result.
508         * predict.c (predict_loops): Use compare_tree_int for comparison.
509         * tree.c (build_int_cst): Fall back to integer_type_node for
510         NULL_TREE type.
511         (build_int_cst_wide): Assert type is non-null.
512
513 2007-01-08  Roberto Costa  <roberto.costa@st.com>
514
515         * tree-vrp.c (extract_range_from_cond_expr): New.
516         (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
517         * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
518         as expressions.
519         (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
520         * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
521         tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
522         used as expressions.
523         * tree-object-size.c (cond_expr_object_size): New.
524         (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.
525
526 2007-01-08  Jan Hubicka  <jh@suse.cz>
527
528         * tree-ssa-forwprop.c (forward_propagate_into_cond,
529         tree_ssa_forward_propagate_single_use_va): Release defs of propagated
530         statement.
531
532 2007-01-08  Richard Guenther  <rguenther@suse.de>
533
534         PR tree-optimization/23603
535         * tree-vrp.c (set_value_range_to_truthvalue): New function.
536         (extract_range_from_binary): Fall back to truthvalue instead of
537         varying for TRUTH_*_EXPR.
538         (extract_range_from_comparison): Fall back to truthvalue instead of
539         varying.
540         (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
541         if all visited PHI values were constant.
542
543 2007-01-08  Jan Hubicka  <jh@suse.cz>
544
545         * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
546         (cgraph_analyze_function): break out from ...
547         (cgraph_finalize_compilation_unit): ... here.
548         (cgraph_expand_function): Remove forgoten commented out line.
549         (cgraph_optimize): Analyze functions.
550
551 2007-01-08  Jan Hubicka  <jh@suse.cz>
552
553         * tree-pas.h (TODO_remove_function): New flag.
554         (TODO_update*): Renumber.
555         (pass_ipa_increase_alignment,
556         pass_ipa_function_and_variable_visibility): New passes.
557         * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
558         (cgraph_function_and_variable_visibility): Move to ipa.c
559         (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
560         cgraph_increase_alignment.
561         * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
562         (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
563         calling tree-inline.
564         (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
565         (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
566         * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
567         (gate_increase_alignment): New function.
568         (pass_ipa_increase_alignment): New pass.
569         * ipa.c: Inline tree-pass.h and timevar.h
570         (function_and_variable_visibility): Move here from cgraphunit.c
571         * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
572         * passes.c (init_optimization_passes): Add the two new passes.
573         (execute_todo): Handle cgraph_remove_functions.
574
575 2007-01-08  Nick Clifton  <nickc@redhat.com>
576
577         * config/frv/predicates.md (reg_or_0_operand): Accept
578         CONST_DOUBLEs.
579
580 2007-01-08  Ralf Cors├ępius <ralf.corsepius@rtems.org>
581
582         * config/bfin/rtems.h, config/bfin/t-rtems: New.
583         * config.gcc: Add bfin*-rtems*.
584
585 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
586
587         * c.opt: Add -flax-vector-conversions.
588         * c-typeck.c (convert_for_assignment): Pass flag to
589         vector_types_convertible_p to allow emission of note.
590         (digest_init): Likewise.
591         * c-opts.c: Handle -flax-vector-conversions.
592         * c-common.c (flag_lax_vector_conversions): New.
593         (vector_types_convertible_p): Unless -flax-vector conversions
594         has been passed, disallow conversions between vectors with
595         differing numbers of subparts and/or element types.  If such
596         a conversion is disallowed, possibly emit a note on the first
597         occasion only to inform the user of -flax-vector-conversions.
598         The new last argument specifies this.
599         * c-common.h (flag_lax_vector_conversions): New.
600         (vector_types_convertible_p): Add extra argument.
601         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
602         char_type_node for V*QI type vectors.
603         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
604         Update to satisfy new typechecking rules.
605         * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
606         C and C++ variants.
607         * doc/invoke.texi (C Dialect Options): Document
608         -flax-vector-conversions.
609
610 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
611
612         PR tree-optimization/29877
613         * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
614         a register variable on the RHS to not be replaceable.
615
616 2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
617         * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
618         * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
619         const_simm15, const_pow2, const_npow2): Added.
620         * config/score/misc.md (insv, extv, extzv, movmemsi, 
621         move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
622         * config/score/score.c (score_address_cost, score_select_cc_mode): 
623         Added.
624         Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
625         Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
626         Update score_print_operand.
627         * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
628         Adjust register allocate order and update some macro define.
629         * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
630         mdx_block_move_straight, mdx_block_move_loop_head,
631         mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
632         mdx_block_move): Added.
633         (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
634         mdp_limm): Updated and fix some bug and typo.
635         * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
636         (movsf, movdf, doloop_end): Added.
637
638 2007-01-08  Kazu Hirata  <kazu@codesourcery.com>
639
640         * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
641         config/arm/thumb2.md: Fix comment typos.
642         * doc/extend.texi: Fix a typo.
643
644 2007-01-07  Eric Christopher  <echristo@apple.com>
645
646         * configure.ac: Check for __stack_chk_fail for darwin.
647         * configure: Regenerate.
648
649 2007-01-07  Richard Guenther  <rguenther@suse.de>
650
651         * tree-vrp.c (extract_range_from_assert): CSE calls to
652         compare_values where possible.
653         (extract_range_from_unary_expr): Likewise.
654
655 2007-01-07  Anatoly Sokolov <aesok@post.ru>
656
657         * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
658         * config/avr/avr.c (call_insn_operand): Delete function.
659         * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
660         instead of register number. Use predicates.
661         * config/avr/predicates.md (const0_operand, reg_or_0_operand,
662         call_insn_operand): Add.
663
664 2007-01-06  Jan Hubicka  <jh@suse.cz>
665
666         * tree-pass.h (pass_build_cgraph_edges): Declare.
667         * cgraphunit.c (record_refernece): Move to cgraphbuild.c
668         (visited_nodes): Remove.
669         (cgraph_create_edges): Move to cgraphbuild.c; rename to
670         build_cgrpah_edges; make visited_nodes local.
671         (cgraph_process_new_functions): DO not call initialize_inline_failed.
672         (record_references_in_initializer): Move to cgraphbuild.c
673         (initialize_inline_failed, rebuild_cgraph_edges,
674         pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
675         (verify_cgraph_node): Make visited_nodes local.
676         (cgraph_analyze_function): Do not call cgraph_create_edges and
677         initialize_inline_failed.
678         (cgraph_expand_function): Do not call cgraph_lower_function;
679         assert that function is already lowered.
680         * Makefile.in (cgraphbuild.o): New.
681         * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
682         at the end of lowering passes.
683
684 2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>
685
686         * ifcvt.c (cond_move_convert_if_block): New function, code
687         factored out from...
688         (cond_move_process_if_block): ...here.  Call the new function
689         on the THEN and ELSE blocks.
690         (merge_if_block): Do not copy global_live_at_end, merge_blocks
691         already takes care of this.
692
693 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
694
695         PR c/19978
696         * tree.h (TREE_OVERFLOW_P): New.
697         * c-typeck.c (parser_build_unary_op): Warn only if result
698         overflowed and operands did not.
699         (parser_build_binary_op): Likewise.
700         (convert_for_assignment): Remove redundant overflow_warning.
701         * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.
702
703 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
704
705         * c-typeck.c (store_init_value): Split over two lines to follow
706         the GNU coding style.
707
708 2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>
709
710         * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
711         __GXX_EXPERIMENTAL_CXX0X__.
712         * doc/cpp.texi: Same.
713
714 2007-01-05  Richard Guenther  <rguenther@suse.de>
715
716         PR middle-end/27826
717         * tree.c (get_narrower): Do not construct COMPONENT_REFs
718         with mismatched types.  Instead explicitly build a
719         conversion NOP_EXPR.
720
721 2007-01-05  Ian Lance Taylor  <iant@google.com>
722
723         * c-common.c (decl_with_nonnull_addr_p): New function.
724         (c_common_truthvalue_conversion): Call it.
725         * c-typeck.c (build_binary_op): Likewise.
726         * c-common.h (decl_with_nonnull_addr_p): Declare.
727
728 2007-01-05  Jakub Jelinek  <jakub@redhat.com>
729
730         PR c/30360
731         * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
732         denom against 0.0.
733
734 2007-01-05  Joel Brobecker  <brobecker@adacore.com>
735
736         * doc/install.texi (Final install): Document the fact that
737         the GNAT runtime should not be stripped.
738
739 2007-01-04  Jan Hubicka  <jh@suse.cz>
740
741         * tree-inline.c (fold_marked_statements): Update operand caches
742         and EH after folding
743
744 2007-01-04  Ian Lance Taylor  <iant@google.com>
745
746         * c-common.c (check_function_nonnull): Whitespace fix.
747
748 2007-01-04  Jan Hubicka  <jh@suse.cz>
749
750         * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
751         comitted older version of patch.
752         (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
753         function, celanup cfg and collect garbage.
754
755 2007-01-04  Mike Stump  <mrs@apple.com>
756
757         * Makefile.in (mostlyclean): Don't remove libgcc anymore.
758         (clean): Likewise.
759
760 2007-01-04  Eric Christopher  <echristo@apple.com>
761
762         * libgcc2.c (__bswapsi2): Use SItype.
763         (__bswapdi2): Use DItype.
764         * libgcc2.h: Update for above.
765
766 2007-01-04  Paul Brook  <paul@codesourcery.com>
767
768         * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
769         mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
770         mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
771         umulsidi3, umulsidi3adddi, smulsi3_highpart,
772         umulsi3_highpart): Make conditional on !arm_arch6.
773         (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
774         mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
775         mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
776         umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
777         umulsi3_highpart_v6): New insns.
778
779 2007-01-04  Roger Sayle  <roger@eyesopen.com>
780
781         * fold-const.c (fold_convert): When casting an expression to void,
782         fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
783         have a type.  Instead of attempting to build a NOP_EXPR, return
784         these "special" trees directly.
785
786 2007-01-04  Joseph Myers  <joseph@codesourcery.com>
787
788         * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
789         MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
790         rs6000_cost->fp not 0 as adjustment for outer NEG.
791
792 2007-01-04  Jan Hubicka  <jh@suse.cz>
793
794         * cgraph.c (cgraph_release_function_body): New function.
795         (cgraph_remove_node): Use it.
796         * cgraph.h (cgraph_release_function_body): Declare.
797         * cgraphunit.c (cgraph_expand_function): Use it.
798         * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
799         * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
800         is initialized and while compilation of other function is running.
801         * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
802         statement CFG annotations from here to ...
803         * tree-cfg.c (delete_tree_cfg_annotations): ... here.
804
805 2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>
806
807         * cfgloop.h (enum li_flags): Make the constants powers of two.
808
809 2007-01-04  Jan Hubicka  <jh@suse.cz>
810
811         * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
812         set.
813         (fold_marked_statements): New function.
814         (optimize_inline_calls, tree_function_versioning): Fold new statements.
815         * tree-inline.h (copy_body_data): Add statements_to_fold.
816
817 2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>
818
819         * config.gcc: Mention libgcc/config.host.
820         * Makefile.in: Update comments mentioning libgcc.
821         (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
822         (all.cross, start.encap, rest.encap, rest.cross): Update
823         dependencies for libgcc move.
824         (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
825         (clean-target, clean-target-libgcc): Delete.
826         (srcdirify, GCC_EXTRA_PARTS): New macros.
827         (libgcc-support, libgcc.mvars): New rules.
828         (distclean): Remove mention of mklibgcc.
829         (install): Don't reference INSTALL_LIBGCC.
830         (install-common): Don't reference EXTRA_PARTS.
831         (install-libgcc, install-multilib): Delete rules.
832         * mklibgcc.in: Delete file.
833         * doc/configfiles.texi: Don't mention mklibgcc.
834
835         * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
836         * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
837         * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
838         * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
839         (mklibgcc, ldblspecs): Likewise.
840
841         * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
842         (posixpre.def): Use $(T).
843         (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
844         (SHLIB_SRC, SHLIB_INSTALL): Delete.
845         (SHLIB_LINK): Make dummy.
846         * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
847
848         * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
849
850         * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
851         * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
852         config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
853         config/rs6000/t-newas, config/sparc/t-elf: Likewise.
854
855         * configure.ac (all_outputs): Remove mklibgcc.
856         * configure: Regenerated.
857
858 2007-01-03  Josh Conner  <jconner@apple.com>
859
860         PR middle-end/29683
861         * calls.c (compute_argument_addresses): Set stack and stack_slot
862         for partial args, too.
863         (store_one_arg): Use locate.size.constant for the size when
864         generating a save_area.
865
866 2007-01-03  Robert Kennedy <jimbob@google.com>
867
868         * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
869         whose definitions are deleted due to basic block merging.
870
871 2007-01-03  Paul Brook  <paul@codesourcery.com>
872
873         PR target/16634
874         * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
875         functions.
876         (use_return_insn): Return 0 for Thumb interrupt functions.
877         (print_multi_reg): Add rfe argument for IRQ returns.
878         (arm_output_epilogue): Pop interrupt return address directly into PC.
879         (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
880
881 2007-01-03  Paul Brook  <paul@codesourcery.com>
882
883         Merge from sourcerygxx-4_1.
884         * config/arm/thumb2.md: New file.
885         * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
886         Thumb-2.
887         * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
888         * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
889         (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
890         * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
891         tables.
892         (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
893         * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
894         comptibility.
895         * config/arm/ieee754-sf.S: Ditto.
896         * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
897         (thumb1_base_register_rtx_p): ... to this.
898         (thumb_index_register_rtx_p): Rename...
899         (thumb1_index_register_rtx_p): ... to this.
900         (thumb_output_function_prologue): Rename...
901         (thumb1_output_function_prologue): ... to this.
902         (thumb_legitimate_address_p): Rename...
903         (thumb1_legitimate_address_p): ... to this.
904         (thumb_rtx_costs): Rename...
905         (thumb1_rtx_costs): ... to this.
906         (thumb_compute_save_reg_mask): Rename...
907         (thumb1_compute_save_reg_mask): ... to this.
908         (thumb_final_prescan_insn): Rename...
909         (thumb1_final_prescan_insn): ... to this.
910         (thumb_expand_epilogue): Rename...
911         (thumb1_expand_epilogue): ... to this.
912         (arm_unwind_emit_stm): Rename...
913         (arm_unwind_emit_sequence): ... to this.
914         (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
915         thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
916         thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
917         arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
918         thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
919         thumb2_output_casesi): New functions.
920         (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
921         (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
922         FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
923         THUMB2_WORK_REGS): Define.
924         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
925         arm_condexec_mask, arm_condexec_masklen)): New variables.
926         (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
927         (arm_override_options): Check new CPU capabilities.
928         Set new architecture flag variables.
929         (arm_isr_value): Handle v7m interrupt functions.
930         (user_return_insn): Return 0 for v7m interrupt functions.  Handle
931         Thumb-2.
932         (const_ok_for_arm): Handle Thumb-2 constants.
933         (arm_gen_constant): Ditto.  Use movw when available.
934         (arm_function_ok_for_sibcall): Return false for v7m interrupt
935         functions.
936         (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
937         (thumb_find_work_register, arm_load_pic_register,
938         legitimize_tls_address, arm_address_cost, load_multiple_sequence,
939         emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
940         print_multi_reg, output_mov_long_double_fpa_from_arm,
941         output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
942         output_mov_double_fpa_from_arm, output_move_double,
943         arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
944         output_return_instruction, arm_output_function_prologue,
945         arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
946         arm_output_mi_thunk, thumb_set_return_address): Ditto.
947         (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
948         (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
949         (arithmetic_instr, shift_op): Use arm_shift_nmem.
950         (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
951         '!' and 'L'.
952         (arm_final_prescan_insn): Use extract_constrain_insn_cached.
953         (thumb_expand_prologue): Use thumb_set_frame_pointer.
954         (arm_file_start): Output directive for unified syntax.
955         (arm_unwind_emit_set): Handle stack alignment instruction.
956         * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
957         Add v6t2, v7, v7a, v7r and v7m.
958         (RETLDM): Add Thumb-2 code.
959         (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
960         * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
961         (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
962         TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
963         THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
964         ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
965         THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
966         CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
967         ADJUST_INSN_LENGTH): Define.
968         (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
969         STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
970         BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
971         PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
972         SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
973         TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
974         HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
975         HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
976         REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
977         REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
978         LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
979         GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
980         ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
981         FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
982         PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
983         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
984         * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
985         cortex-m3.
986         * config/arm/arm-tune.md: Regenerate.
987         * config/arm/arm-protos.h: Update prototypes.
988         * config/arm/vfp.md: Enable patterns for Thumb-2.
989         (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
990         (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
991         (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
992         thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
993         * config/arm/libunwind.S: Add Thumb-2 code.
994         * config/arm/constraints.md: Update include Thumb-2.
995         * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
996         * config/arm/ieee754-df.S: Ditto.
997         * config/arm/bpabi.S: Ditto.
998         * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
999         * config/arm/predicates.md (low_register_operand,
1000         low_reg_or_int_operand, thumb_16bit_operator): New.
1001         (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
1002         (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
1003         * config/arm/t-arm-elf: Add armv7 multilib.
1004         * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
1005         Include thumb2.md.
1006         (UNSPEC_STACK_ALIGN, ce_count): New.
1007         (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
1008         arm_zero_extendsidi2, arm_zero_extendqidi2): New
1009         insns/expanders.
1010         * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
1011         (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
1012         thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
1013         * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
1014         (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
1015         thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
1016         insns.
1017         * doc/extend.texi: Document ARMv7-M interrupt functions.
1018         * doc/invoke.texi: Document Thumb-2 new cores+architectures.
1019
1020 2007-01-03  Jakub Jelinek  <jakub@redhat.com>
1021
1022         * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
1023         (struct _Unwind_Context): Rename args_size to flags, remove
1024         signal_frame field, add a new args_size field and version field.
1025         (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
1026         _Unwind_IsExtendedContext): New inline functions.
1027         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
1028         Assume by_value array is only present if _Unwind_IsExtendedContext.
1029         (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
1030         _Unwind_IsSignalFrame.
1031         (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
1032         (uw_update_context_1): Use _Unwind_SetSignalFrame.
1033         (uw_init_context_1): Initialize context->flags to
1034         EXTENDED_CONTEXT_BIT.
1035         * config/rs6000/linux-unwind.h (frob_update_context): Use
1036         _Unwind_SetSignalFrame.
1037
1038 2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
1039
1040         PR middle-end/30353
1041         * gimplify.c (gimplify_modify_expr_complex_part): Move below
1042         tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
1043         the value.
1044
1045 2007-01-03  Kazu Hirata  <kazu@codesourcery.com>
1046
1047         * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
1048         REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
1049         RET, AT_SP): Remove.
1050         * config/i386/i386.md (*sse_prologue_save_insn): Use return
1051         instead of RET.
1052
1053         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1054         * cfgbuild.c (find_basic_blocks): Likewise.
1055         * cfgrtl.c (rtl_create_basic_block): Likewise.
1056         * function.c (temp_slots_at_level): Likewise.
1057         * reg-stack.c (stack_regs_mentioned): Likewise.
1058         * regclass.c (allocate_reg_info): Likewise.
1059         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1060         set_bb_for_stmt, move_block_to_fn): Likewise.
1061         * tree-complex.c (tree_lower_complex): Likewise.
1062         * vec.h (VEC_safe_grow_cleared): New.
1063
1064         * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
1065
1066 2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>
1067
1068         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
1069         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
1070         to loop_version.
1071         * cfgloopmanip.c (scale_loop_frequencies): Export.
1072         (loopify): Scale the frequencies by prescribed coefficients.
1073         (set_zero_probability): New function.
1074         (duplicate_loop_to_header_edge): Improve updating of frequencies.
1075         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
1076         and frequencies according to arguments.
1077         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
1078         correctly.
1079         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
1080         * modulo-sched.c (sms_schedule): Set probabilities for entering
1081         versioned loop correctly.
1082         * tree-vect-transform.c (vect_transform_loop): Ditto.
1083         * cfgloop.h (loopify, loop_version): Declaration changed.
1084         (scale_loop_frequencies): Declared.
1085
1086 2007-01-02  Jan Hubicka  <jh@suse.cz>
1087
1088         * cgraph.c: Include tree-flow.h
1089         (cgraph_add_new-function): Handle IPA_SSA mode; execute
1090         early_local_passes.
1091         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
1092         * tree-pass.h (pass_all_early_optimizations): Declare.
1093         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
1094         early_local_passes.
1095         (cgraph_analyze_function): Do early_local_passes.
1096         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
1097         Do not add referenced vars.
1098         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
1099         SSA form.
1100         (gate_all_early_local_passes): New gate.
1101         (pass_early_local_passes): Use new gate.
1102         (execute_early_local_optimizations): New functions.
1103         (gate_all_early_optimizations): New gate.
1104         (pass_all_early_optimizations): New pass.
1105         (execute_free_datastructures): Free SSA only when initialized.
1106         (gate_init_datastructures): Init only when optimizing.
1107         (tree_lowering_passes): Do early local passes when called late.
1108         * tree-profile.c (do_tree_profiling): Don't profile functions added
1109         late.
1110         (do_early_tree_profiling, pass_early_tree_profile): Kill.
1111         * tree-cfg.c (update_modified_stmts): Do not update when operands are
1112         not active.
1113         * passes.c (init_optimizations_passes): Reorder so we go into SSA
1114         during early_local_passes.
1115         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
1116
1117
1118 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
1119
1120         * Makefile.in: Update copyright year.
1121
1122 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
1123
1124         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
1125         in $(lang_checks) and check-consistency targets.
1126
1127 2007-01-02  Jan Hubicka  <jh@suse.cz>
1128
1129         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
1130         Do not add referenced vars.
1131         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
1132         are not active.
1133         * passes.c (init_optimization_passes): Put mudflap_2 after
1134         free_datastructures.
1135
1136 2007-01-02  Jan Hubicka  <jh@suse.cz>
1137
1138         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
1139         Set NOTHROW flag on call statements proved to be nothrow.
1140         Update statement of local calls so new pure/const functions are
1141         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
1142         goto receivers.
1143         (tree_rest_of_compilation): Register hooks and initialize bitmap
1144         early. Do not set after_inlining flag.
1145
1146 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
1147
1148         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
1149         HOST_BITS_PER_LONGLONG
1150
1151 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
1152
1153         PR c/19977
1154         * c-typeck.c (store_init_value): Don't emit pedantic overflow
1155         warning for non-static initializers.
1156
1157 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
1158
1159         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
1160         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
1161         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
1162         Always use set_unique_reg_note to add REG_EQUAL notes.
1163
1164 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1165
1166         Revert:
1167         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1168
1169         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1170         * cfgbuild.c (find_basic_blocks): Likewise.
1171         * cfgrtl.c (rtl_create_basic_block): Likewise.
1172         * function.c (temp_slots_at_level): Likewise.
1173         * reg-stack.c (stack_regs_mentioned): Likewise.
1174         * regclass.c (allocate_reg_info): Likewise.
1175         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1176         set_bb_for_stmt, move_block_to_fn): Likewise.
1177         * tree-complex.c (tree_lower_complex): Likewise.
1178         * vec.h (VEC_safe_grow_cleared): New.
1179
1180 2007-01-02  Ian Lance Taylor  <iant@google.com>
1181
1182         * c-common.c (c_common_truthvalue_conversion): When warning about
1183         using an assignment as a truth value, set TREE_NO_WARNING.
1184
1185 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1186
1187         PR middle-end/7651
1188         * c.opt (Wold-style-declaration): New.
1189         * doc/invoke.texi (C-only Warning Options): New.
1190         (Wold-style-declaration): Document it.
1191         (Wextra): Enabled by -Wextra.
1192         * c-opts.c (c_common_post_options): Enabled by -Wextra.
1193         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
1194         -Wold-style-declaration.
1195
1196 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1197
1198         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1199         * cfgbuild.c (find_basic_blocks): Likewise.
1200         * cfgrtl.c (rtl_create_basic_block): Likewise.
1201         * function.c (temp_slots_at_level): Likewise.
1202         * reg-stack.c (stack_regs_mentioned): Likewise.
1203         * regclass.c (allocate_reg_info): Likewise.
1204         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1205         set_bb_for_stmt, move_block_to_fn): Likewise.
1206         * tree-complex.c (tree_lower_complex): Likewise.
1207         * vec.h (VEC_safe_grow_cleared): New.
1208
1209 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
1210
1211         * c-common.c(c_common_nodes_and_builtins): Since variants of
1212         void_type_node get built before it is given a name, we need to
1213         give those variants the name, too.
1214         (complete_array_type): We need to work with the canonical main
1215         type of the array, from which we will build the qualified version.
1216         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
1217         * print-tree.c (print_node): Display canonical type information
1218         for each type.
1219         * stor-layout.c (layout_type): When we don't know the
1220         alignment of a type for which we're building an array, we end up
1221         guessing wrong, so make the type require structural equality.
1222         * tree.c (make_node_stat): When we build a new type, it is its
1223         own canonical type.
1224         (build_type_attribute_qual_variant): When building an attribute
1225         variant, its canonical type is the non-attribute variant. However,
1226         if the attributes are target-dependent and they differ, we need to
1227         use structural equality checks for this type.
1228         (build_qualified_type): A qualified type is not equivalent to its
1229         unqualified variant; set the canonical type appropriately.
1230         (build_distinct_type_copy): When building a distinct type from
1231         another type, the new type is its own canonical type.
1232         (build_variant_type_copy): When building a new type variant, we
1233         assume that it is equivalent to the original type.
1234         (build_pointer_type_for_mode): When building a pointer type, also
1235         build a canonical type pointer.
1236         (build_reference_type_for_mode): When building a reference type,
1237         also build a canonical type reference.
1238         (build_index_type): When we can't hash an index type (e.g.,
1239         because its maximum value is negative), the index type requires
1240         structural equality tests.
1241         (build_array_type): Build the canonical form of an array type.
1242         (build_function_type): Function types require structural equality,
1243         because they contain default arguments, attributes, etc.
1244         (build_method_type_directly): Ditto for method types.
1245         (build_offset_type): Build the canonical offset type.
1246         (build_complex_type): Build the canonical vector type.
1247         (make_vector_type): Build the canonical vector type.
1248         * tree.h (TYPE_CANONICAL): New.
1249         (TYPE_STRUCTURAL_EQUALITY_P): New.
1250         (SET_TYPE_STRUCTURAL_EQUALITY): New.
1251         (struct tree_type): Added "canonical" field.
1252         * params.h (VERIFY_CANONICAL_TYPES): New.
1253         * doc/c-tree.texi (TYPE_CANONICAL): Document.
1254         (TYPE_STRUCTURAL_EQUALITY_P): Document.
1255         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
1256         * doc/invoke.texi (verify-canonical-types): Document --param
1257         parameter for verifying canonical types.
1258
1259 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1260
1261         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
1262         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
1263         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
1264         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
1265         tm_file.
1266         * config/rs6000/e500.h: New.
1267         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
1268         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
1269         Remove.
1270         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
1271         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
1272         TARGET_E500_DOUBLE): Remove.
1273         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
1274         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
1275         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
1276         * config/rs6000/rs6000.c (rs6000_override_options): Use
1277         CHECK_E500_OPTIONS.
1278
1279 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1280
1281         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
1282         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
1283         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
1284         rs6000_emit_cmove): Don't check TARGET_E500.
1285         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
1286         sordered): Don't check TARGET_E500.
1287
1288 2007-01-01  Eric Christopher  <echristo@apple.com>
1289
1290         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
1291         HARD_REGISTER_NUM_P.
1292
1293 2007-01-01  Roger Sayle  <roger@eyesopen.com>
1294
1295         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
1296         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
1297         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
1298         eq/ne Y".
1299
1300 2007-01-01  Mike Stump  <mrs@apple.com>
1301
1302         * configure.ac: Remove support for building with Apple's gcc-3.1.
1303
1304 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1305
1306         PR middle-end/30311
1307         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
1308         REG is a hard register.  Do not modify REG before calling
1309         subreg_nregs.
1310         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
1311         multiple of the size of YMODE for certain lowpart cases.
1312
1313 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1314
1315         PR middle-end/30253
1316         * gimplify (voidify_wrapper_expr): Update for
1317         GIMPLE_MODIFY_STMT.
1318
1319 2007-01-01  Andreas Schwab  <schwab@suse.de>
1320
1321         PR target/29166
1322         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
1323         save of BR0 in extra_spill_size instead of spill_size.
1324         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
1325         area.
1326         (ia64_expand_epilogue): Restore BR0 from its new location.
1327
1328 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1329
1330         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
1331         Use a temporary variable if the left hand side is not a gimple
1332         register.
1333
1334 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1335
1336         * gimplify.c (gimplify_return_expr): Make the temporary variable
1337         for the return expression, a gimple register variable.
1338
1339 2007-01-01  Jan Hubicka  <jh@suse.cz>
1340
1341         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
1342         INSN_LIST.
1343
1344 2007-01-01  Mike Stump  <mrs@apple.com>
1345
1346         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
1347         .literal16.
1348         * config/darwin.c (machopic_select_rtx_section): Use
1349         HAVE_GAS_LITERAL16.
1350         (darwin_mergeable_constant_section): Likewise.
1351         * configure: Regenerate.
1352         * config.in: Regenerate.
1353
1354 2007-01-01  Jan Hubicka  <jh@suse.cz>
1355             Andrew Pinski  <pinskia@gmail.com>
1356
1357         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
1358         before starting IPA passes.