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[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2007-01-15  Jan Hubicka  <jh@suse.cz>
2
3         * tree-ssa-dce.c (DCE_TODOs): New.
4         (propagate_necessity): Return if something changed.
5         (eliminate_unnecessary_stmts): Likewise.
6         (perform_tree_ssa_dce): Return TODO flags when needed.
7         (pass_dce, pass_dce_loop, pass_cd_dce): Remove TODO flags.
8
9 2007-01-15  Uros Bizjak  <ubizjak@gmail.com>
10
11         * config/i386/i386.md (fyl2xxf3_i387): Rename from fyl2x_xf3.
12         (fyl2x_extend<mode>xf3_i387): New insn pattern.
13         (log<mode>2): Rename from logsf2 and logdf2 and macroize insn
14         insn patterns using X87MODEF12 mode macro.  Extend operand 1
15         to XFmode. Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
16         (log10<mode>2): Ditto.
17         (log2<mode>2): Ditto.
18         (log1p<mode>2): Ditto.
19         (logb<mode>2): Ditto.
20         (fyl2xp1xf3_i387): Rename from fyl2xp1_xf3.
21         (fyl2xp1_extend<mode>xf3_i387): New insn pattern.
22         (*fxtractxf3_i387): Rename from *fxtractxf3.
23         (fxtract_extend<mode>xf3_i387): New insn pattern.
24         (ilogbsi2): Use match_dup 3, not match_operand:XF 3.
25
26         * config/i386/i386.c (ix86_emit_i387_log1p): Use gen_fyl2xp1xf3_i387()
27         and gen_fyl2xxf3_i387().
28
29 2007-01-14  Zdenek Dvorak <dvorakz@suse.cz>
30
31         * loop-unswitch.c (unswitch_loop): Do not call fix_loop_placement.
32         * cfgloopmanip.c (fix_loop_placement): Made static.  Use
33         get_loop_exit_edges.  Changed return type to bool.
34         * cfgloop.h (fix_loop_placement): Declaration removed.
35
36 2007-01-14  Dorit Nuzman  <dorit@il.ibm.com>
37
38         * param.h (MIN_VECT_LOOP_BOUND): New.
39         * params.def (MIN_VECT_LOOP_BOUND): New.
40         * tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Takes another
41         argument - minimum threshold for number of iterations. 
42         * tree-vectorizer.h (slpeel_tree_peel_loop_to_edge): Add another
43         argument to declaration.
44         * tree-vect-analyze.c (vect_analyze_operations): Check value of 
45         MIN_VECT_LOOP_BOUND.
46         * tree-vect-transform.c (vect_do_peeling_for_loop_bound): Call
47         slpeel_tree_peel_loop_to_edge with additional argument.
48         (vect_do_peeling_for_alignment): Likewise.
49         * doc/invoke.texi (min-vect-loop-bound): Document new param option.
50
51 2007-01-14  Uros Bizjak  <ubizjak@gmail.com>
52
53         PR target/30413
54         * config/i386/i386.c (print_operand) ['z']: Output 'b' for
55         operands of size 1.
56
57 2007-01-14  Jan Hubicka  <jh@suse.cz>
58
59         * tree-dfa.c (remove_referenced_var): New function.
60         * tree-ssa-live.c (remove_unused_locals): Walk referenced vars and
61         prune referenced vars list too.
62         * tree-flow.h (remove_referenced_var): Declare.
63
64 2007-01-14  Jan Hubicka  <jh@suse.cz>
65
66         * tree-eh.c (add_stmt_to_eh_region_fn): Do not add call_exprs
67         separately.
68         (remove_stmt_from_eh_region_fn): Do not remove call_exprs.
69         (verify_eh_throw_stmt_node, verify_eh_throw_table_statements): Kill.
70         * except.h (verify_eh_throw_table_statements): Kill prototype.
71         * cfgexpand.c (expand_gimple_basic_block): Propagate Eh regions
72         into call exrepssions.
73         * tree-optimize.c (execute_free_cfg_annotatiosn): Do not call
74         eh trhow verifier.
75         * tree-cfg.c: Include pointer-set.h.
76         (verify_node_sharing): Work on pointer set.
77         (verify_eh_throw_stmt_node): New.
78         (verify_stmts): Use pointers sets, verify throw_stmt.
79
80 2007-01-13  Zdenek Dvorak <dvorakz@suse.cz>
81
82         * ipa-reference.c (analyze_function): Consider also addresses taken
83         in phi nodes.
84
85 2007-01-12  Roger Sayle  <roger@eyesopen.com>
86
87         * c-typeck.c (null_pointer_constant_p): Replace use of
88         TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
89         (build_c_cast): Likewise.
90
91 2007-01-12  Roger Sayle  <roger@eyesopen.com>
92
93         * tree.h (force_fit_type_double): Remove unused final argument.
94         * c-common.c (constant_expression_warning): Replace use of
95         TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
96         (convert_and_check): Likewise.
97         (shorten_compare): Update call to force_fit_type_double.
98         (c_common_truthvalue_conversion) <INTEGER_CST>: Use integer_zerop.
99         * convert.c (convert_to_pointer): Update call to
100         force_fit_type_double.
101         * fold-const.c (force_fit_type_double): Remove overflowed_const
102         argument.
103         (int_const_binop, fold_convert_const_int_from_int,
104         fold_convert_const_int_from_real, fold_div_compare,
105         fold_sign_changed_comparison, fold_unary, fold_negate_const,
106         fold_abs_const, fold_not_const): Remove the final argument from
107         calls to force_fit_type_double.
108
109 2007-01-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>
110
111         * configure.ac: Set insn to "nop" for spu-*-* also.
112         * configure: Regenerate.
113
114 2007-01-12  Olga Golovanevsky  <olga@il.ibm.com>
115
116         * builtins.def : Add BUILT_IN_FREE.
117         
118 2007-01-12  Jan Hubicka  <jh@suse.cz>
119
120         PR tree-optimization/30443
121         * tree-inline.c (tree_function_versioning): Do not optimize when
122         cloning for inlining.
123
124 2007-01-12  Zdenek Dvorak <dvorakz@suse.cz>
125
126         * doc/loop.texi: Document recording of loop exits.
127         * cfgloopmanip.c (loopify, duplicate_loop): Use alloc_loop.
128         (update_single_exits_after_duplication,
129         update_single_exit_for_duplicated_loop,
130         update_single_exit_for_duplicated_loops): Removed.
131         (duplicate_loop_to_header_edge): Do not call
132         update_single_exits_after_duplication and
133         update_single_exit_for_duplicated_loops.
134         (loop_version): Do not update single_exit information.
135         (fix_loop_structure): Use record_loop_exits instead of
136         mark_single_exit_loops.
137         * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update
138         the lists of loop exits.
139         * cfghooks.c (redirect_edge_and_branch, redirect_edge_and_branch_force,
140         split_edge, merge_blocks): Update the lists of loop exits.
141         * modulo-sched.c (sms_schedule): Pass LOOPS_HAVE_RECORDED_EXITS to
142         loop_optimizer_init.
143         * loop-init.c (loop_optimizer_init): Call record_loop_exits instead
144         of mark_single_exit_loops.
145         (loop_optimizer_finalize): Call release_recorded_exits.
146         * tree-ssa-loop.c (tree_loop_optimizer_init): Pass
147         LOOPS_HAVE_RECORDED_EXITS to loop_optimizer_init.
148         * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg): Do not
149         update single exit information.
150         * lambda-code.c (perfect_nestify): Ditto.
151         * cfgloop.c (flow_loop_free): Destroy the list of exits of the loop.
152         (mark_single_exit_loops): Removed.
153         (alloc_loop, loop_exit_hash, loop_exit_eq, loop_exit_free,
154         get_exit_descriptions, rescan_loop_exit, record_loop_exits,
155         dump_recorded_exit, dump_recorded_exits, release_recorded_exits): New
156         functions.
157         (get_loop_exit_edges, single_exit): Use recorded exit lists.
158         (add_bb_to_loop, remove_bb_from_loops): Update the lists of loop exits.
159         (verify_loop_structure): Verify consistency of the exit lists.
160         (flow_loops_find): Use alloc_loop.  Initialize exits hash.
161         (set_single_exit): Removed.
162         * cfgloop.h (struct loop_exit): New function.
163         (struct loop): single_exit_ field replaced by exits field.
164         (LOOPS_HAVE_MARKED_SINGLE_EXITS): Replaced by LOOPS_HAVE_RECORDED_EXITS.
165         (struct loops): Added exits hash.
166         (mark_single_exit_loops, set_single_exit): Declaration removed.
167         (release_recorded_exits, record_loop_exits, rescan_loop_exit): Declare.
168
169 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
170
171         * doc/invoke.texi: Avoid use of @headitem.
172
173 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
174
175         * cse.c (cse_insn): Move HAVE_CC0 code after declarations.
176
177 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
178
179         * doc/install.texi: Fix m68k-*-* anchor and add m68k-*-* to the
180         list of targets.
181
182 2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
183             Richard Sandiford  <richard@codesourcery.com>
184
185         * doc/invoke.texi: Document -mno-bitfield, -mno-rtd and -mno-short.
186         * config/m68k/m68k.opt: Resort options.
187         (mbitfield, mrtd, mshort): Remove RejectNegative properties.
188
189 2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
190             Richard Sandiford  <richard@codesourcery.com>
191
192         * doc/invoke.texi: Document the macros that are defined by
193         m68k's -mtune and -mhard-float options.
194         * config/m68k/m68k-protos.h (m68k_cpp_cpu_ident) Declare.
195         (m68k_cpp_cpu_family): Likewise.
196         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Add a full set
197         of __ucfv*__ macros.  Define __mcffpu__ if generating code for
198         ColdFire FPUs.  Define __mcf_cpu_* and __mcf_family_* macros.
199         * config/m68k/m68k.c (m68k_cpp_cpu_ident): New function.
200         (m68k_cpp_cpu_family): Likewise.
201
202 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
203
204         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Treat all mc68*
205         macros besides mc68000 as tuning macros.  Use a switch statement
206         to set them and mcpu32.
207
208 2007-01-12  Julian Brown  <julian@codesourcery.com>
209
210         * config/m68k/m68k.h: Use TARGET_68040 instead of TARGET_68040_ONLY.
211         (TARGET_68040_ONLY): Rename to...
212         (TARGET_68040): ...this.
213         * config/m68k/m68k.c: Use TARGET_68040 instead of TARGET_68040_ONLY.
214         * config/m68k/m68k.md: Likewise.
215
216 2007-01-12  Julian Brown  <julian@codesourcery.com>
217             Nathan Sidwell  <nathan@codesourcery.com>
218             Richard Sandiford  <richard@codesourcery.com>
219
220         * config.gcc (m680[012]0-*-*, m68k*-*-*): Set m68k_cpu_ident to
221         the -mcpu= argument associated with the --with-cpu setting.
222         Define M68K_DEFAULT_TUNE to the default -mtune= option,
223         if different from the one implied by the -mcpu setting.
224         Accept --with-cpu=FOO if FOO is listed in m68k-devices.def,
225         using mcpu=FOO as the default CPU option.  Set target_cpu_default2.
226         * doc/invoke.texi: Mention ColdFire in the introduction to the
227         m68k options.  Document the new -march, -mcpu, -mtune, -mdiv,
228         -mno-div and -mhard-float options.  Make -m68881 a synonym for
229         -mhard-float.  Document the previously-undocumented -m5206e,
230         -m528x, -m5307 and -m5407 options.  Tweak the existing option
231         documentation for consistency.
232         * doc/install.texi: Mention new --with-cpu arguments.
233         * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Only use the
234         default CPU if neither -mcpu nor -march are specified.
235         (ASM_CPU_SPEC): Pass down -mcpu and -march options.
236         (TARGET_CPU_CPP_BUILTINS): Set __mcfisa*__ macros from
237         TARGET_ISA*.  Set the legacy __mcf*__ cpu macros in the same way,
238         using m68k_tune to decide between families that implement the
239         same ISA.  Use m68k_tune to set __mcfv4e__.
240         (FL_BITFIELD, FL_68881, FL_COLDFIRE, FL_CF_HWDIV, FL_CF_MAC)
241         (FL_CF_EMAC, FL_CF_EMAC_B, FL_CF_USP, FL_CF_FPU, FL_ISA_68000)
242         (FL_ISA_68010, FL_ISA_68020, FL_ISA_68040, FL_ISA_A, FL_ISA_B)
243         (FL_ISA_C, FL_ISA_MMU): New macros.
244         (MASK_COLDFIRE): Delete.
245         (TARGET_68010, TARGET_68020, TARGET_68040_ONLY, TARGET_COLDFIRE)
246         (TARGET_ISAB): Redefine in terms of m68k_cpu_flags.
247         (TARGET_68881, TARGET_COLDFIRE_FPU): Redefine in terms of m68k_fpu.
248         (TARGET_HARD_FLOAT): Do not define here.
249         (TARGET_ISAAPLUS, TARGET_ISAC): New macros.
250         (TUNE_68000): New macro.
251         (TUNE_68000_10): Redefine in terms of TUNE_68000 and TUNE_68010.
252         (TUNE_68010, TUNE_68030, TUNE_68040, TUNE_68060, TUNE_CPU32)
253         (TUNE_CFV2): Redefine in terms of m68k_tune.
254         (uarch_type, target_device, fpu_type): New enums.
255         (m68k_cpu, m68k_tune, m68k_fpu, m68k_cpu_flags): Declare.
256         * config/m68k/m68k.c (TARGET_DEFAULT): Remove MASK_68881.
257         (FL_FOR_isa_00, FL_FOR_isa_10, FL_FOR_isa_20, FL_FOR_isa_40)
258         (FL_FOR_isa_cpu32, FL_FOR_isa_a, FL_FOR_isa_aplus, FL_FOR_isa_b)
259         (FL_FOR_isa_c): New macros.
260         (m68k_isa): New enum.
261         (m68k_target_selection): New structure.
262         (all_devices, all_isas, all_microarchs): New tables.
263         (m68k_cpu_entry, m68k_arch_entry, m68k_tune_entry, m68k_cpu)
264         (m68k_tune, m68k_fpu, m68k_cpu_flags): New variables.
265         (MASK_ALL_CPU_BITS): Delete.
266         (m68k_find_selection): New function.
267         (m68k_handle_option): Handle -mcpu=, -march= and -mtune=.
268         Map the legacy target options to a combination of the new ones.
269         (override_options): Set m68k_cpu, m68k_tune, m68k_fpu and
270         m68k_cpu_flags.  Handle M68K_DEFAULT_TUNE.  Use m68k_cpu_flags
271         to derive default MASK_BITFIELD, MASK_CF_HWDIV and MASK_HARD_FLOAT
272         settings.
273         * config/m68k/m68k.opt (m5200, m5206e, m528x, m5307, m5407, mcfv4e)
274         (m68010, m68020, m68020-40, m68020-60, m68030, m68040): Remove Mask
275         properties.
276         (m68881, msoft-float): Change mask from 68881 to HARD_FLOAT.
277         (march=, mcpu=, mdiv, mhard-float, mtune=): New options.
278         * config/m68k/m68k-devices.def: New file.
279
280 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
281             Nathan Sidwell  <nathan@codesourcery.com>
282
283         * config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
284         (SUBTARGET_EXTRA_SPECS): New macros.
285         * config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
286         use %(asm_cpu_spec) instead.
287         * config/m68k/m68k-none.h (ASM_SPEC): Likewise.
288         * config/m68k/openbsd.h (ASM_SPEC): Likewise.
289         * config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
290         (EXTRA_SPECS): Rename to...
291         (SUBTARGET_EXTRA_SPECS): ...this.
292
293 2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
294             Richard Sandiford  <richard@codesourcery.com>
295             Julian Brown  <julian@codesourcery.com>
296
297         * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
298         (m68k-*-uclinux*, m68k-*-linux*, m68k-*-rtems*): Set default_m68k_cpu
299         to the configuration's default CPU.
300         (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*): Likewise.
301         Remove default masks.
302         (m680[012]0-*-*): Set the default with_cpu to the first part of
303         the target name.
304         (m68k*-*-*): Set the default with_cpu to m$default_m68k_cpu.
305         (m68k*-*-linux): Extend the --with-cpu handling to...
306         (m680[012]0-*-*, m68k*-*-*): ...these configurations.  Allow m68000
307         and m68010.  Don't set target_cpu_default2.
308         * doc/install.texi: Document --with-cpu for m68k.
309         * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Define.
310         * config/m68k/m68k-none.h (TARGET_CPU_DEFAULT, M68K_CPU_m68k)
311         (M68K_CPU_m68000, M68K_CPU_m68010, M68K_CPU_m68020, M68K_CPU_m68030)
312         (M68K_CPU_m68040, M68K_CPU_m68302, M68K_CPU_m68332, TARGET_DEFAULT)
313         (ASM_CPU_DEFAULT_SPEC, CC1_CPU_DEFAULT_SPEC): Delete.
314         (ASM_SPEC): Remove use of %(asm_cpu_default).
315         (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS, MULTILIB_DEFAULTS): Delete.
316         * config/m68k/linux.h (TARGET_DEFAULT): Delete.
317         (CPP_SPEC): Merge definitions.  Do not handle __HAVE_68881__ here.
318         * config/m68k/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Define
319         __HAVE_FPU__ if TARGET_HARD_FLOAT.
320         (TARGET_DEFAULT): Delete.
321         (EXTRA_SPECS): Delete cpp_cpu_default_spec, cpp_cpu_spec,
322         cpp_fpu_spec, asm_default_spec and netbsd_cpp_spec.
323         (CPP_CPU_SPEC): Delete.
324         (TARGET_VERSION): Merge definitions, using TARGET_68010 to pick
325         the appropriate string.
326         (CPP_CPU_DEFAULT_SPEC, ASM_DEFAULT_SPEC, CPP_FPU_SPEC): Delete.
327         (CPP_SPEC): Define to NETBSD_CPP_SPEC.
328         (ASM_SPEC): Don't use %(asm_default_spec).
329         * config/m68k/m68k.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
330         TARGET_DEFAULT and add MASK_68881.
331         * config/m68k/m68k.md: Remove mention of TARGET_DEFAULT from comments.
332
333 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
334
335         * config.gcc (m68010-*-netbsdelf*): Add MASK_68010.
336         (m68k*-*-netbsdelf*, m68k*-*-openbsd*, m68k*-linux*): Add
337         MASK_68010 alongside MASK_68020.
338         * doc/invoke.texi: Document -m68010.
339         * config/m68k/m68k.opt (m68010): New.
340         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define mc68010
341         if TUNE_68010.
342         (TUNE_68010): New macro.
343         * config/m68k/m68k-none.h (M68K_CPU_m68k, M68K_CPU_m68010)
344         (M68K_CPU_m68020, M68K_CPU_m68030, M68K_CPU_m68040)
345         (M68K_CPU_m68332): Add MASK_68010.
346         * config/m68k/linux.h (TARGET_DEFAULT): Add MASK_68010 to
347         fallback definition.
348         * config/m68k/netbsd-elf.h (CPP_CPU_SPEC): Remove now-redundant
349         defines.
350         * config/m68k/m68k.c (MASK_ALL_CPU_BITS): Add MASK_68010.
351         (m68k_handle_option): Handle OPT_m68010.  Add MASK_68010
352         to all entries that use MASK_68020.
353         (output_move_simode_const, output_move_himode, output_move_qimode)
354         (output_move_stricthi, output_move_strictqi): Use TARGET_68010
355         instead of TARGET_68020 to select clr behavior.  Remove comment
356         about there being no TARGET_68010.
357         * config/m68k/m68k.md: Likewise throughout.
358
359 2007-01-12  Julian Brown  <julian@codesourcery.com>
360
361         * config/m68k/m68k.h (TARGET_ISAB): New macro.
362         * config/m68k/m68k.c: Use TARGET_ISAB rather than TARGET_CFV4.
363         * config/m68k/m68k.md: Likewise.
364
365 2007-01-12  Julian Brown  <julian@codesourcery.com>
366
367         * config/m68k/m68k.h (LEGITIMATE_INDEX_P, LEGITIMIZE_ADDRESS): Use
368         TARGET_COLDFIRE_FPU instead of TARGET_CFV4E.
369
370 2007-01-12  Julian Brown  <julian@codesourcery.com>
371
372         * config/m68k/m68k.h (TUNE_68040_60): New macro.
373         * config/m68k/m68k.c (standard_68881_constant_p): Use it.
374         * config/m68k/m68k.md: Likewise.
375
376 2007-01-12  Julian Brown  <julian@codesourcery.com>
377             Richard Sandiford  <richard@codesourcery.com>
378
379         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Use TUNE_68030
380         instead of TARGET_68030, TUNE_68040 instead of TARGET_68040,
381         TUNE_68060 instead of TARGET_68060 and TUNE_CPU32 instead of
382         TARGET_CPU32.
383         (TARGET_CPU32): Rename to...
384         (TUNE_CPU32): ...this.
385         (TUNE_68000_10, TUNE_68030, TUNE_68040, TUNE_68060)
386         (TUNE_CFV2): New macros.
387         * config/m68k/netbsd-elf.h (LONG_DOUBLE_TYPE_SIZE): Simplify;
388         remove conditions that are implied by TARGET_68020.
389         * config/m68k/m68k.c (m68k_output_function_prologue): Use TUNE_68040
390         instead of TARGET_68040 and TUNE_CPU32 instead of TARGET_CPU32.
391         (m68k_output_function_epilogue): Likewise.
392         (m68k_rtx_costs): Likewise.  Use TUNE_68060 instead of TARGET_68060
393         and TUNE_CFV2 instead of TARGET_5200.  Use TUNE_68000_10 instead of
394         "!TARGET_68020 && !TARGET_COLDFIRE" to choose between 68000 and
395         non-68000 timings.  Refactor multiplication and division costs.
396         (output_addsi3): Use TUNE_68040 instead of TARGET_68040 and
397         TUNE_CPU32 instead of TARGET_CPU32.
398         (standard_68881_constant_p): Use TUNE_68040 instead of TARGET_68040
399         and TUNE_68060 instead of TARGET_68060.
400         * config/m68k/m68k.md: Use TUNE_68040 instead of TARGET_68040,
401         TUNE_68060 instead of TARGET_68060, and TUNE_CPU32 instead of
402         TARGET_CPU32.
403         (movsi_const0): Use TUNE_68000_10 rather than "!TARGET_68020
404         && !TARGET_COLDFIRE" to choose between moveq and clr.
405         Likewise in the unnamed movsf pattern.
406         (ashlsi_17_24, lshrsi_17_24): Guard with TUNE_68000_10 rather than
407         "!TARGET_68020 && !TARGET_COLDFIRE".  Likewise the unnamed
408         ashiftrt pattern.
409
410 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
411
412         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Increase amount
413         of tabbing before backslashes.
414
415 2007-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
416
417         * pa-linux.h (ASM_OUTPUT_INTERNAL_LABEL): Undefine.
418         * pa.h (ASM_OUTPUT_LABEL): Output colon when using GAS.
419         (ASM_OUTPUT_INTERNAL_LABEL): Define.
420
421 2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>
422
423         * tree-ssa-loop-ivopts.c (extract_cond_operands): Split from
424         find_interesting_uses_cond.
425         (find_interesting_uses_cond): Use extract_cond_operands.
426         (rewrite_use_compare): Use extract_cond_operands and
427         force_gimple_operand_bsi.  Do not call update_stmt.
428         (determine_use_iv_cost_condition): Use extract_cond_operands.
429         Return cheaper of using original bound and changing the exit bound.
430
431 2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>
432
433         PR tree-optimization/29516
434         * tree-ssa-address.c (tree_mem_ref_addr, add_to_parts,
435         most_expensive_mult_to_index, addr_to_parts,
436         create_mem_ref, maybe_fold_tmr): Make the type of
437         fields of TARGET_MEM_REF sizetype.
438         (move_fixed_address_to_symbol, move_pointer_to_base):
439         New functions.
440         * tree.def (TARGET_MEM_REF): Add comment on types of
441         the operands.
442
443 2007-01-11  Joseph Myers  <joseph@codesourcery.com>
444
445         * c-common.c (vector_types_convertible_p): Treat opaque types as
446         always convertible if they have the same size, but not otherwise.
447
448 2007-01-11  Steven Bosscher  <steven@gcc.gnu.org>
449
450         * ifcvt.c (struct noce_if_info): Add comments to the fields.
451         Remove the b_unconditional field.
452         (noce_try_sign_mask): Do not look at b_unconditional.
453         (noce_process_if_block): Do not use merge_if_blocks.  Update
454         the CFG here.  Do not set b_unconditional.
455         (cond_move_process_if_block): Likewise.
456         (find_cond_trap): Likewise.
457         (check_cond_move_block): Require simple jump insns at the end
458         of the basic block.
459
460 2007-01-11  Jan Hubicka  <jh@suse.cz>
461
462         PR tree-optimization/1046
463         * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
464         when alias info is not ready.
465         (pass_tail_recursion): Do not require aliasing.
466         * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
467         * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
468         * tree-ssa-copy.c (pass_copy_prop): Likewise.
469         * tree-ssa-forwprop.c (pass_forwprop): Likewise.
470         * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
471         * passes.c (init_optimization_passes): Execute rename_ssa_copies,
472         ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
473         before inlining.
474         * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
475         When aliasing is not build, mark statement as volatile.
476
477 2007-01-11  Tom Tromey  <tromey@redhat.com>
478
479         PR preprocessor/15185, PR preprocessor/20989:
480         * doc/cppopts.texi <-MT>: Update description of algorithm for
481         computing default target.
482         <-M, -MD>: Reword "basename" text.
483
484 2007-01-11  Roger Sayle  <roger@eyesopen.com>
485
486         * builtins.c (expand_builtin_pow, expand_builtin_powi,
487         fold_builtin_cabs, fold_builtin_sqrt, fold_builtin_trunc,
488         fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
489         fold_builtin_int_int_roundingfn, fold_builtin_bitop,
490         fold_builtin_bswap, real_constp, fold_builtin_pow,
491         fold_builtin_powi, fold_builtin_signbit, fold_builtin_copysign,
492         do_mpfr_arg1, do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Replace
493         uses of the macro TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
494         * convert.c (convert_to_pointer): Likewise.
495         * expr.c (highest_pow2_factor, expand_expr_real_1): Likewise.
496         * fold-const.c (force_fit_type, fold_negate_expr, int_const_binop,
497         const_binop, fold_convert_const_int_from_int,
498         fold_convert_const_int_from_real,
499         fold_convert_const_real_from_real, sign_bit_p,
500         optimize_minmax_comparison, extract_muldiv_1, fold_div_compare,
501         fold_sign_changed_comparison, fold_unary, fold_comparison,
502         fold_binary, multiple_of_p, tree_Expr_non_zero_p,
503         fold_negate_const, fold_abs_const, fold_not_const): Likewise.
504         * print-tree.c (print_node_brief, print_node): Likewise.
505         * stor-layout.c (place_field, layout_type): Likewise.
506         * tree-chrec.c (keep_cast): Likewise.
507         * tree.c (build_vector, build_real, build_real_from_int_cst,
508         build_complex): Likewise.
509
510 2007-01-11  Roger Sayle  <roger@eyesopen.com>
511
512         * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
513         treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.
514
515 2007-01-11  Paolo Bonzini  <bonzini@gnu.org>
516
517         * configure.ac (strict1_warn): Rename to strict_warn.
518         (WERROR, --enable-werror, symlink hacks, stage1_cflags,
519         cc_set_by_configure, quoted_cc_set_by_configure,
520         stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
521         all_boot_languages, all_stagestuff): Remove.
522         (target_list): Remove bootstrap targets.
523         * Makefile.in (quickstrap): Unconditionally make a synonym of all.
524         (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
525         REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
526         SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
527         VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
528         STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
529         stage1_copy, stage2_build, stage2_copy, stageprofile_build,
530         stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
531         stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
532         bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
533         bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
534         unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
535         restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
536         cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
537         *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
538         stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
539         stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
540         risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
541         (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
542         (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
543         (mostlyclean): Adjust.
544         (clean, distclean): Don't mention bootstrap stuff.
545         * configure: Regenerate.
546         * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
547         java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
548         treelang/config-lang.in (stagestuff): Remove.
549         * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
550         stageprofile, stagefeedback, stagestuff): Remove mention.
551
552 2007-01-11  Nick Clifton  <nickc@redhat.com>
553
554         * config/mcore/predicates.md (mcore_general_movesrc_operand):
555         Accept CONSTs.
556         (mcore_general_movdst_operand): Do not accept CONST_INTs.
557         (mcore_arith_K_S_operand): Run the test for the S constraint not
558         the test for the M constraint.
559         (mcore_addsub_operand): Do not accept integer values that are
560         larger than 32 bits.
561         * config/mcore/mcore.md: Remove unused constraints from split.
562         (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
563         (addsi3): Likewise.
564         (allocate_stack): Likewise.
565         * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
566         operands to 32 bits.
567         (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
568         INTVAL.
569         (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
570         mcore_const_ok_for_inline, mcore_const_trick_uses_not,
571         try_constant_tricks, mcore_num_ones, mcore_num_zeros,
572         mcore_output_bclri, mcore_output_andn, output_inline_const,
573         mcore_output_move, mcore_output_movedouble): Likewise.
574         (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
575         (output_inline_const): Likewise.
576         (output_inline_const): Fix format strings used in sprintf
577         statements.
578         * config/mcore/mcore-protos.h: Update prototypes for changed
579         functions in mcore.c.
580         * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
581         HOST_WIDE_INT and not int.
582         (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
583         CONST_OK_FOR_N): Likewise.
584         (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
585         (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
586         an INTVAL.
587
588 2007-01-10  Jan Hubicka  <jh@suse.cz>
589
590         * tree-vrp.c (remove_range_assertions): Release defs.
591         * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
592         * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.
593
594 2007-01-10  Paul Brook  <paul@codesourcery.com>
595
596         * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
597         * config/arm/arm.md (mulsi3subsi): New insn.
598
599 2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>
600
601         * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
602         (tree_transform_and_unroll_loop): New.
603         * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
604         Declare.
605
606 2007-01-10  Robert Kennedy <jimbob@google.com>
607
608         * fold-const.c (fold_comparison): Fold comparisons like (x *
609         1000 < 0) to (x < 0).
610
611 2007-01-10  Ian Lance Taylor  <iant@google.com>
612
613         * tree-pretty-print.c (dump_generic_node): Print parentheses when
614         operands have the same priority.
615
616 2007-01-10  Tom Tromey  <tromey@redhat.com>
617
618         * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
619         (fold_binary): Likewise.
620         * langhooks.c (lhd_can_use_bit_fields_p): Removed.
621         * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
622         (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
623         (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
624         * langhooks.h (struct lang_hooks): Removed field
625         'can_use_bit_fields_p'.
626
627 2007-01-10  Ralf Cors├ępius <ralf.corsepius@rtems.org>
628
629         * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.
630
631 2007-01-10  Razya Ladelsky  <razya@il.ibm.com>
632
633         * function.c (get_last_funcdef_no): New function.
634         * function.h (get_last_funcdef_no): Declare. 
635         * tree-inline.c (initialize_cfun): Add initialization.
636         (tree_function_versioning): Cleanup.
637         
638 2007-01-10  Jan Hubicka  <jh@suse.cz>
639
640         * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
641         PHIs.
642
643 2007-01-10  Sa Liu  <saliu@de.ibm.com>
644             Ben Elliston  <bje@au.ibm.com>
645
646         * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
647         for SAVE_NONLOCAL and Pmode for any other save level.
648         * spu-protos.h (spu_restore_stack_block): Declare.
649         * spu.md (save_stack_block): Remove.
650         (restore_stack_block): Call spu_restore_stack_block.
651         * spu.c (spu_restore_stack_block): New function.
652         (spu_expand_epilogue): Remove old comment.
653
654 2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>
655
656         PR tree-optimization/30322
657         * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
658         (cand_value_at): Return the value as aff_tree.
659         (may_eliminate_iv): Convert the bound from aff_tree to tree.
660         * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
661         aff_combination_mult): New functions.
662         (aff_combination_add): Use aff_combination_add_cst.
663         (aff_combination_convert): Allow conversions to a wider type.
664         (tree_to_aff_combination): Handle BIT_NOT_EXPR.
665         * tree-affine.h (aff_combination_mult): Declare.
666
667 2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>
668
669         * doc/tm.texi: Update documentation to reflect reality of exec
670         and start file search behaviours. Update copyright year.
671         * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
672         header file directories.
673
674 2007-01-09  Uros Bizjak  <ubizjak@gmail.com>
675
676         * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
677         (*cosxf2): Rename to cosxf2_i387.
678         (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
679         using X87MODEF12 mode macro. Rename patterns to
680         *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
681         for SSE math.
682         (*cosdf2, *cossf2): Ditto.
683         (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
684         to match extended input operands.
685         (sincos<mode>3): New expander.
686         (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
687         insn patterns and corresponding splitters.
688
689 2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>
690
691         * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
692         (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.
693
694 2007-01-09  Nicolas Pitre  <nico@cam.org>
695
696         PR target/30173
697         * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.
698
699 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
700
701         * target.h (struct gcc_target): New field library_rtti_comdat.
702         * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
703         (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
704         * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
705         * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.
706
707 2007-01-08  Geoffrey Keating  <geoffk@apple.com>
708
709         * doc/invoke.texi (Optimize Options): Correct description of -O0.
710
711 2007-01-08  Richard Guenther  <rguenther@suse.de>
712
713         * tree.h (force_fit_type_double): Export.
714         (force_fit_type): Remove.
715         * fold-const.c (force_fit_type_double): New function.
716         (force_fit_type): Remove.
717         (int_const_binop): Use it.
718         (fold_convert_const_int_from_int): Likewise.
719         (fold_convert_const_int_from_real): Likewise.
720         (fold_div_compare): Likewise.
721         (fold_sign_changed_comparison): Likewise.
722         (fold_unary): Likewise.
723         (fold_negate_const): Likewise.
724         (fold_abs_const): Likewise. 
725         (fold_not_const): Likewise.
726         * c-common.c (shorten_compare): Use force_fit_type_double.
727         * convert.c (convert_to_pointer): Likewise.
728
729 2007-01-08  Richard Guenther  <rguenther@suse.de>
730
731         * tree.h (build_int_cst_wide_type): Export.
732         * tree.c (build_int_cst_wide_type): New function.
733         (build_int_cst_wide): Fix comment.
734         * builtins.c (fold_builtin_object_size): Use build_int_cst
735         to build -1 or 0 of the correct type.  Use fit_double_type
736         to check for overflow.
737         * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
738         to build the mask.
739         (decode_field_reference): Likewise.
740         (all_ones_mask_p): Likewise.
741         (native_interpret_int): Use build_int_cst_wide_type.
742         (fold_binary): Use build_int_cst_type to build an all-ones
743         value.
744         * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.
745
746 2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>
747
748         * config/pa/t-pa64 (libgcc_stub.a): Use $(T).
749
750 2007-01-09  Ben Elliston  <bje@au.ibm.com>
751
752         * genautomata.c (STATS_OPTION): New option.
753         (stats_flag): New flag.
754         (gen_automata_option): Handle it.
755         (initiate_automaton_gen): Ditto.
756         (write_automata): Output statistics only if stats_flag is
757         set. Likewise, output time statistics only if time_flag is set.
758         * doc/md.texi (Processor pipeline description): Document new flag.
759
760 2007-01-08  Richard Guenther  <rguenther@suse.de>
761
762         * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
763         * tree.c (build_int_cst_type): Likewise.
764         (size_in_bytes): Don't call force_fit_type on the result.
765         (int_fits_type_p): Use fit_double_type.
766         * fold-const.c (fit_double_type): New function.
767         (force_fit_type): Use it.
768         * tree.h (fit_double_type): Export.
769
770 2007-01-08  Jan Hubicka  <jh@suse.cz>
771
772         * tree-vectorizer.c (gate_increase_alignment): Fix return type.
773         * ipa.c (function_and_variable_visibility): Fix return type.
774
775 2007-01-08  Richard Guenther  <rguenther@suse.de>
776
777         * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
778         of offset to build the index.
779         * tree-pretty-print.c (dump_generic_node): Don't build negated
780         const just for printing.
781         * c-pretty-print.c (pp_c_integer_constant): Likewise.
782         * builtins.c (fold_builtin_int_roundingfn): Check if result
783         fits the type by using force_fit_type and comparing the result.
784         * predict.c (predict_loops): Use compare_tree_int for comparison.
785         * tree.c (build_int_cst): Fall back to integer_type_node for
786         NULL_TREE type.
787         (build_int_cst_wide): Assert type is non-null.
788
789 2007-01-08  Roberto Costa  <roberto.costa@st.com>
790
791         * tree-vrp.c (extract_range_from_cond_expr): New.
792         (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
793         * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
794         as expressions.
795         (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
796         * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
797         tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
798         used as expressions.
799         * tree-object-size.c (cond_expr_object_size): New.
800         (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.
801
802 2007-01-08  Jan Hubicka  <jh@suse.cz>
803
804         * tree-ssa-forwprop.c (forward_propagate_into_cond,
805         tree_ssa_forward_propagate_single_use_va): Release defs of propagated
806         statement.
807
808 2007-01-08  Richard Guenther  <rguenther@suse.de>
809
810         PR tree-optimization/23603
811         * tree-vrp.c (set_value_range_to_truthvalue): New function.
812         (extract_range_from_binary): Fall back to truthvalue instead of
813         varying for TRUTH_*_EXPR.
814         (extract_range_from_comparison): Fall back to truthvalue instead of
815         varying.
816         (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
817         if all visited PHI values were constant.
818
819 2007-01-08  Jan Hubicka  <jh@suse.cz>
820
821         * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
822         (cgraph_analyze_function): break out from ...
823         (cgraph_finalize_compilation_unit): ... here.
824         (cgraph_expand_function): Remove forgoten commented out line.
825         (cgraph_optimize): Analyze functions.
826
827 2007-01-08  Jan Hubicka  <jh@suse.cz>
828
829         * tree-pas.h (TODO_remove_function): New flag.
830         (TODO_update*): Renumber.
831         (pass_ipa_increase_alignment,
832         pass_ipa_function_and_variable_visibility): New passes.
833         * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
834         (cgraph_function_and_variable_visibility): Move to ipa.c
835         (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
836         cgraph_increase_alignment.
837         * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
838         (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
839         calling tree-inline.
840         (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
841         (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
842         * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
843         (gate_increase_alignment): New function.
844         (pass_ipa_increase_alignment): New pass.
845         * ipa.c: Inline tree-pass.h and timevar.h
846         (function_and_variable_visibility): Move here from cgraphunit.c
847         * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
848         * passes.c (init_optimization_passes): Add the two new passes.
849         (execute_todo): Handle cgraph_remove_functions.
850
851 2007-01-08  Nick Clifton  <nickc@redhat.com>
852
853         * config/frv/predicates.md (reg_or_0_operand): Accept
854         CONST_DOUBLEs.
855
856 2007-01-08  Ralf Cors├ępius <ralf.corsepius@rtems.org>
857
858         * config/bfin/rtems.h, config/bfin/t-rtems: New.
859         * config.gcc: Add bfin*-rtems*.
860
861 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
862
863         * c.opt: Add -flax-vector-conversions.
864         * c-typeck.c (convert_for_assignment): Pass flag to
865         vector_types_convertible_p to allow emission of note.
866         (digest_init): Likewise.
867         * c-opts.c: Handle -flax-vector-conversions.
868         * c-common.c (flag_lax_vector_conversions): New.
869         (vector_types_convertible_p): Unless -flax-vector conversions
870         has been passed, disallow conversions between vectors with
871         differing numbers of subparts and/or element types.  If such
872         a conversion is disallowed, possibly emit a note on the first
873         occasion only to inform the user of -flax-vector-conversions.
874         The new last argument specifies this.
875         * c-common.h (flag_lax_vector_conversions): New.
876         (vector_types_convertible_p): Add extra argument.
877         * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
878         char_type_node for V*QI type vectors.
879         * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
880         Update to satisfy new typechecking rules.
881         * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
882         C and C++ variants.
883         * doc/invoke.texi (C Dialect Options): Document
884         -flax-vector-conversions.
885
886 2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>
887
888         PR tree-optimization/29877
889         * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
890         a register variable on the RHS to not be replaceable.
891
892 2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
893         * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
894         * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
895         const_simm15, const_pow2, const_npow2): Added.
896         * config/score/misc.md (insv, extv, extzv, movmemsi, 
897         move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
898         * config/score/score.c (score_address_cost, score_select_cc_mode): 
899         Added.
900         Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
901         Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
902         Update score_print_operand.
903         * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
904         Adjust register allocate order and update some macro define.
905         * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
906         mdx_block_move_straight, mdx_block_move_loop_head,
907         mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
908         mdx_block_move): Added.
909         (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
910         mdp_limm): Updated and fix some bug and typo.
911         * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
912         (movsf, movdf, doloop_end): Added.
913
914 2007-01-08  Kazu Hirata  <kazu@codesourcery.com>
915
916         * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
917         config/arm/thumb2.md: Fix comment typos.
918         * doc/extend.texi: Fix a typo.
919
920 2007-01-07  Eric Christopher  <echristo@apple.com>
921
922         * configure.ac: Check for __stack_chk_fail for darwin.
923         * configure: Regenerate.
924
925 2007-01-07  Richard Guenther  <rguenther@suse.de>
926
927         * tree-vrp.c (extract_range_from_assert): CSE calls to
928         compare_values where possible.
929         (extract_range_from_unary_expr): Likewise.
930
931 2007-01-07  Anatoly Sokolov <aesok@post.ru>
932
933         * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
934         * config/avr/avr.c (call_insn_operand): Delete function.
935         * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
936         instead of register number. Use predicates.
937         * config/avr/predicates.md (const0_operand, reg_or_0_operand,
938         call_insn_operand): Add.
939
940 2007-01-06  Jan Hubicka  <jh@suse.cz>
941
942         * tree-pass.h (pass_build_cgraph_edges): Declare.
943         * cgraphunit.c (record_refernece): Move to cgraphbuild.c
944         (visited_nodes): Remove.
945         (cgraph_create_edges): Move to cgraphbuild.c; rename to
946         build_cgrpah_edges; make visited_nodes local.
947         (cgraph_process_new_functions): DO not call initialize_inline_failed.
948         (record_references_in_initializer): Move to cgraphbuild.c
949         (initialize_inline_failed, rebuild_cgraph_edges,
950         pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
951         (verify_cgraph_node): Make visited_nodes local.
952         (cgraph_analyze_function): Do not call cgraph_create_edges and
953         initialize_inline_failed.
954         (cgraph_expand_function): Do not call cgraph_lower_function;
955         assert that function is already lowered.
956         * Makefile.in (cgraphbuild.o): New.
957         * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
958         at the end of lowering passes.
959
960 2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>
961
962         * ifcvt.c (cond_move_convert_if_block): New function, code
963         factored out from...
964         (cond_move_process_if_block): ...here.  Call the new function
965         on the THEN and ELSE blocks.
966         (merge_if_block): Do not copy global_live_at_end, merge_blocks
967         already takes care of this.
968
969 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
970
971         PR c/19978
972         * tree.h (TREE_OVERFLOW_P): New.
973         * c-typeck.c (parser_build_unary_op): Warn only if result
974         overflowed and operands did not.
975         (parser_build_binary_op): Likewise.
976         (convert_for_assignment): Remove redundant overflow_warning.
977         * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.
978
979 2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
980
981         * c-typeck.c (store_init_value): Split over two lines to follow
982         the GNU coding style.
983
984 2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>
985
986         * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
987         __GXX_EXPERIMENTAL_CXX0X__.
988         * doc/cpp.texi: Same.
989
990 2007-01-05  Richard Guenther  <rguenther@suse.de>
991
992         PR middle-end/27826
993         * tree.c (get_narrower): Do not construct COMPONENT_REFs
994         with mismatched types.  Instead explicitly build a
995         conversion NOP_EXPR.
996
997 2007-01-05  Ian Lance Taylor  <iant@google.com>
998
999         * c-common.c (decl_with_nonnull_addr_p): New function.
1000         (c_common_truthvalue_conversion): Call it.
1001         * c-typeck.c (build_binary_op): Likewise.
1002         * c-common.h (decl_with_nonnull_addr_p): Declare.
1003
1004 2007-01-05  Jakub Jelinek  <jakub@redhat.com>
1005
1006         PR c/30360
1007         * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
1008         denom against 0.0.
1009
1010 2007-01-05  Joel Brobecker  <brobecker@adacore.com>
1011
1012         * doc/install.texi (Final install): Document the fact that
1013         the GNAT runtime should not be stripped.
1014
1015 2007-01-04  Jan Hubicka  <jh@suse.cz>
1016
1017         * tree-inline.c (fold_marked_statements): Update operand caches
1018         and EH after folding
1019
1020 2007-01-04  Ian Lance Taylor  <iant@google.com>
1021
1022         * c-common.c (check_function_nonnull): Whitespace fix.
1023
1024 2007-01-04  Jan Hubicka  <jh@suse.cz>
1025
1026         * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
1027         comitted older version of patch.
1028         (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
1029         function, celanup cfg and collect garbage.
1030
1031 2007-01-04  Mike Stump  <mrs@apple.com>
1032
1033         * Makefile.in (mostlyclean): Don't remove libgcc anymore.
1034         (clean): Likewise.
1035
1036 2007-01-04  Eric Christopher  <echristo@apple.com>
1037
1038         * libgcc2.c (__bswapsi2): Use SItype.
1039         (__bswapdi2): Use DItype.
1040         * libgcc2.h: Update for above.
1041
1042 2007-01-04  Paul Brook  <paul@codesourcery.com>
1043
1044         * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
1045         mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
1046         mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
1047         umulsidi3, umulsidi3adddi, smulsi3_highpart,
1048         umulsi3_highpart): Make conditional on !arm_arch6.
1049         (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
1050         mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
1051         mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
1052         umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
1053         umulsi3_highpart_v6): New insns.
1054
1055 2007-01-04  Roger Sayle  <roger@eyesopen.com>
1056
1057         * fold-const.c (fold_convert): When casting an expression to void,
1058         fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
1059         have a type.  Instead of attempting to build a NOP_EXPR, return
1060         these "special" trees directly.
1061
1062 2007-01-04  Joseph Myers  <joseph@codesourcery.com>
1063
1064         * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
1065         MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
1066         rs6000_cost->fp not 0 as adjustment for outer NEG.
1067
1068 2007-01-04  Jan Hubicka  <jh@suse.cz>
1069
1070         * cgraph.c (cgraph_release_function_body): New function.
1071         (cgraph_remove_node): Use it.
1072         * cgraph.h (cgraph_release_function_body): Declare.
1073         * cgraphunit.c (cgraph_expand_function): Use it.
1074         * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
1075         * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
1076         is initialized and while compilation of other function is running.
1077         * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
1078         statement CFG annotations from here to ...
1079         * tree-cfg.c (delete_tree_cfg_annotations): ... here.
1080
1081 2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>
1082
1083         * cfgloop.h (enum li_flags): Make the constants powers of two.
1084
1085 2007-01-04  Jan Hubicka  <jh@suse.cz>
1086
1087         * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
1088         set.
1089         (fold_marked_statements): New function.
1090         (optimize_inline_calls, tree_function_versioning): Fold new statements.
1091         * tree-inline.h (copy_body_data): Add statements_to_fold.
1092
1093 2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>
1094
1095         * config.gcc: Mention libgcc/config.host.
1096         * Makefile.in: Update comments mentioning libgcc.
1097         (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
1098         (all.cross, start.encap, rest.encap, rest.cross): Update
1099         dependencies for libgcc move.
1100         (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
1101         (clean-target, clean-target-libgcc): Delete.
1102         (srcdirify, GCC_EXTRA_PARTS): New macros.
1103         (libgcc-support, libgcc.mvars): New rules.
1104         (distclean): Remove mention of mklibgcc.
1105         (install): Don't reference INSTALL_LIBGCC.
1106         (install-common): Don't reference EXTRA_PARTS.
1107         (install-libgcc, install-multilib): Delete rules.
1108         * mklibgcc.in: Delete file.
1109         * doc/configfiles.texi: Don't mention mklibgcc.
1110
1111         * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
1112         * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
1113         * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
1114         * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
1115         (mklibgcc, ldblspecs): Likewise.
1116
1117         * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
1118         (posixpre.def): Use $(T).
1119         (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
1120         (SHLIB_SRC, SHLIB_INSTALL): Delete.
1121         (SHLIB_LINK): Make dummy.
1122         * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.
1123
1124         * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.
1125
1126         * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
1127         * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
1128         config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
1129         config/rs6000/t-newas, config/sparc/t-elf: Likewise.
1130
1131         * configure.ac (all_outputs): Remove mklibgcc.
1132         * configure: Regenerated.
1133
1134 2007-01-03  Josh Conner  <jconner@apple.com>
1135
1136         PR middle-end/29683
1137         * calls.c (compute_argument_addresses): Set stack and stack_slot
1138         for partial args, too.
1139         (store_one_arg): Use locate.size.constant for the size when
1140         generating a save_area.
1141
1142 2007-01-03  Robert Kennedy <jimbob@google.com>
1143
1144         * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
1145         whose definitions are deleted due to basic block merging.
1146
1147 2007-01-03  Paul Brook  <paul@codesourcery.com>
1148
1149         PR target/16634
1150         * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
1151         functions.
1152         (use_return_insn): Return 0 for Thumb interrupt functions.
1153         (print_multi_reg): Add rfe argument for IRQ returns.
1154         (arm_output_epilogue): Pop interrupt return address directly into PC.
1155         (arm_expand_prologue): Only adjust IRQ return address in Arm mode.
1156
1157 2007-01-03  Paul Brook  <paul@codesourcery.com>
1158
1159         Merge from sourcerygxx-4_1.
1160         * config/arm/thumb2.md: New file.
1161         * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
1162         Thumb-2.
1163         * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
1164         * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
1165         (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
1166         * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
1167         tables.
1168         (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
1169         * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
1170         comptibility.
1171         * config/arm/ieee754-sf.S: Ditto.
1172         * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
1173         (thumb1_base_register_rtx_p): ... to this.
1174         (thumb_index_register_rtx_p): Rename...
1175         (thumb1_index_register_rtx_p): ... to this.
1176         (thumb_output_function_prologue): Rename...
1177         (thumb1_output_function_prologue): ... to this.
1178         (thumb_legitimate_address_p): Rename...
1179         (thumb1_legitimate_address_p): ... to this.
1180         (thumb_rtx_costs): Rename...
1181         (thumb1_rtx_costs): ... to this.
1182         (thumb_compute_save_reg_mask): Rename...
1183         (thumb1_compute_save_reg_mask): ... to this.
1184         (thumb_final_prescan_insn): Rename...
1185         (thumb1_final_prescan_insn): ... to this.
1186         (thumb_expand_epilogue): Rename...
1187         (thumb1_expand_epilogue): ... to this.
1188         (arm_unwind_emit_stm): Rename...
1189         (arm_unwind_emit_sequence): ... to this.
1190         (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
1191         thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
1192         thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
1193         arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
1194         thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
1195         thumb2_output_casesi): New functions.
1196         (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
1197         (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
1198         FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
1199         THUMB2_WORK_REGS): Define.
1200         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
1201         arm_condexec_mask, arm_condexec_masklen)): New variables.
1202         (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
1203         (arm_override_options): Check new CPU capabilities.
1204         Set new architecture flag variables.
1205         (arm_isr_value): Handle v7m interrupt functions.
1206         (user_return_insn): Return 0 for v7m interrupt functions.  Handle
1207         Thumb-2.
1208         (const_ok_for_arm): Handle Thumb-2 constants.
1209         (arm_gen_constant): Ditto.  Use movw when available.
1210         (arm_function_ok_for_sibcall): Return false for v7m interrupt
1211         functions.
1212         (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
1213         (thumb_find_work_register, arm_load_pic_register,
1214         legitimize_tls_address, arm_address_cost, load_multiple_sequence,
1215         emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
1216         print_multi_reg, output_mov_long_double_fpa_from_arm,
1217         output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
1218         output_mov_double_fpa_from_arm, output_move_double,
1219         arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
1220         output_return_instruction, arm_output_function_prologue,
1221         arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
1222         arm_output_mi_thunk, thumb_set_return_address): Ditto.
1223         (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
1224         (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
1225         (arithmetic_instr, shift_op): Use arm_shift_nmem.
1226         (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
1227         '!' and 'L'.
1228         (arm_final_prescan_insn): Use extract_constrain_insn_cached.
1229         (thumb_expand_prologue): Use thumb_set_frame_pointer.
1230         (arm_file_start): Output directive for unified syntax.
1231         (arm_unwind_emit_set): Handle stack alignment instruction.
1232         * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
1233         Add v6t2, v7, v7a, v7r and v7m.
1234         (RETLDM): Add Thumb-2 code.
1235         (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
1236         * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
1237         (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
1238         TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
1239         THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
1240         ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
1241         THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
1242         CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
1243         ADJUST_INSN_LENGTH): Define.
1244         (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
1245         STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
1246         BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
1247         PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
1248         SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
1249         TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
1250         HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
1251         HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
1252         REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
1253         REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
1254         LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
1255         GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
1256         ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
1257         FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
1258         PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
1259         (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
1260         * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
1261         cortex-m3.
1262         * config/arm/arm-tune.md: Regenerate.
1263         * config/arm/arm-protos.h: Update prototypes.
1264         * config/arm/vfp.md: Enable patterns for Thumb-2.
1265         (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
1266         (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
1267         (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
1268         thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
1269         * config/arm/libunwind.S: Add Thumb-2 code.
1270         * config/arm/constraints.md: Update include Thumb-2.
1271         * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
1272         * config/arm/ieee754-df.S: Ditto.
1273         * config/arm/bpabi.S: Ditto.
1274         * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
1275         * config/arm/predicates.md (low_register_operand,
1276         low_reg_or_int_operand, thumb_16bit_operator): New.
1277         (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
1278         (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
1279         * config/arm/t-arm-elf: Add armv7 multilib.
1280         * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
1281         Include thumb2.md.
1282         (UNSPEC_STACK_ALIGN, ce_count): New.
1283         (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
1284         arm_zero_extendsidi2, arm_zero_extendqidi2): New
1285         insns/expanders.
1286         * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
1287         (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
1288         thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
1289         * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
1290         (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
1291         thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
1292         insns.
1293         * doc/extend.texi: Document ARMv7-M interrupt functions.
1294         * doc/invoke.texi: Document Thumb-2 new cores+architectures.
1295
1296 2007-01-03  Jakub Jelinek  <jakub@redhat.com>
1297
1298         * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
1299         (struct _Unwind_Context): Rename args_size to flags, remove
1300         signal_frame field, add a new args_size field and version field.
1301         (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
1302         _Unwind_IsExtendedContext): New inline functions.
1303         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
1304         Assume by_value array is only present if _Unwind_IsExtendedContext.
1305         (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
1306         _Unwind_IsSignalFrame.
1307         (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
1308         (uw_update_context_1): Use _Unwind_SetSignalFrame.
1309         (uw_init_context_1): Initialize context->flags to
1310         EXTENDED_CONTEXT_BIT.
1311         * config/rs6000/linux-unwind.h (frob_update_context): Use
1312         _Unwind_SetSignalFrame.
1313
1314 2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
1315
1316         PR middle-end/30353
1317         * gimplify.c (gimplify_modify_expr_complex_part): Move below
1318         tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
1319         the value.
1320
1321 2007-01-03  Kazu Hirata  <kazu@codesourcery.com>
1322
1323         * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
1324         REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
1325         RET, AT_SP): Remove.
1326         * config/i386/i386.md (*sse_prologue_save_insn): Use return
1327         instead of RET.
1328
1329         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1330         * cfgbuild.c (find_basic_blocks): Likewise.
1331         * cfgrtl.c (rtl_create_basic_block): Likewise.
1332         * function.c (temp_slots_at_level): Likewise.
1333         * reg-stack.c (stack_regs_mentioned): Likewise.
1334         * regclass.c (allocate_reg_info): Likewise.
1335         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1336         set_bb_for_stmt, move_block_to_fn): Likewise.
1337         * tree-complex.c (tree_lower_complex): Likewise.
1338         * vec.h (VEC_safe_grow_cleared): New.
1339
1340         * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.
1341
1342 2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>
1343
1344         * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
1345         * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
1346         to loop_version.
1347         * cfgloopmanip.c (scale_loop_frequencies): Export.
1348         (loopify): Scale the frequencies by prescribed coefficients.
1349         (set_zero_probability): New function.
1350         (duplicate_loop_to_header_edge): Improve updating of frequencies.
1351         (lv_adjust_loop_entry_edge, loop_version): Set probabilities
1352         and frequencies according to arguments.
1353         * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
1354         correctly.
1355         * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
1356         * modulo-sched.c (sms_schedule): Set probabilities for entering
1357         versioned loop correctly.
1358         * tree-vect-transform.c (vect_transform_loop): Ditto.
1359         * cfgloop.h (loopify, loop_version): Declaration changed.
1360         (scale_loop_frequencies): Declared.
1361
1362 2007-01-02  Jan Hubicka  <jh@suse.cz>
1363
1364         * cgraph.c: Include tree-flow.h
1365         (cgraph_add_new-function): Handle IPA_SSA mode; execute
1366         early_local_passes.
1367         * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
1368         * tree-pass.h (pass_all_early_optimizations): Declare.
1369         * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
1370         early_local_passes.
1371         (cgraph_analyze_function): Do early_local_passes.
1372         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
1373         Do not add referenced vars.
1374         * tree-optimize.c (gate_all_optimizations): Do not execute when not in
1375         SSA form.
1376         (gate_all_early_local_passes): New gate.
1377         (pass_early_local_passes): Use new gate.
1378         (execute_early_local_optimizations): New functions.
1379         (gate_all_early_optimizations): New gate.
1380         (pass_all_early_optimizations): New pass.
1381         (execute_free_datastructures): Free SSA only when initialized.
1382         (gate_init_datastructures): Init only when optimizing.
1383         (tree_lowering_passes): Do early local passes when called late.
1384         * tree-profile.c (do_tree_profiling): Don't profile functions added
1385         late.
1386         (do_early_tree_profiling, pass_early_tree_profile): Kill.
1387         * tree-cfg.c (update_modified_stmts): Do not update when operands are
1388         not active.
1389         * passes.c (init_optimizations_passes): Reorder so we go into SSA
1390         during early_local_passes.
1391         * Makefile.in (cgraph.o): Add dependency on tree-flow.h.
1392
1393
1394 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
1395
1396         * Makefile.in: Update copyright year.
1397
1398 2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>
1399
1400         * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
1401         in $(lang_checks) and check-consistency targets.
1402
1403 2007-01-02  Jan Hubicka  <jh@suse.cz>
1404
1405         * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
1406         Do not add referenced vars.
1407         * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
1408         are not active.
1409         * passes.c (init_optimization_passes): Put mudflap_2 after
1410         free_datastructures.
1411
1412 2007-01-02  Jan Hubicka  <jh@suse.cz>
1413
1414         * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
1415         Set NOTHROW flag on call statements proved to be nothrow.
1416         Update statement of local calls so new pure/const functions are
1417         updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
1418         goto receivers.
1419         (tree_rest_of_compilation): Register hooks and initialize bitmap
1420         early. Do not set after_inlining flag.
1421
1422 2007-01-02  Steve Ellcey  <sje@cup.hp.com>
1423
1424         * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
1425         HOST_BITS_PER_LONGLONG
1426
1427 2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>
1428
1429         PR c/19977
1430         * c-typeck.c (store_init_value): Don't emit pedantic overflow
1431         warning for non-static initializers.
1432
1433 2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>
1434
1435         * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
1436         m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
1437         rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
1438         Always use set_unique_reg_note to add REG_EQUAL notes.
1439
1440 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1441
1442         Revert:
1443         2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1444
1445         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1446         * cfgbuild.c (find_basic_blocks): Likewise.
1447         * cfgrtl.c (rtl_create_basic_block): Likewise.
1448         * function.c (temp_slots_at_level): Likewise.
1449         * reg-stack.c (stack_regs_mentioned): Likewise.
1450         * regclass.c (allocate_reg_info): Likewise.
1451         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1452         set_bb_for_stmt, move_block_to_fn): Likewise.
1453         * tree-complex.c (tree_lower_complex): Likewise.
1454         * vec.h (VEC_safe_grow_cleared): New.
1455
1456 2007-01-02  Ian Lance Taylor  <iant@google.com>
1457
1458         * c-common.c (c_common_truthvalue_conversion): When warning about
1459         using an assignment as a truth value, set TREE_NO_WARNING.
1460
1461 2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
1462
1463         PR middle-end/7651
1464         * c.opt (Wold-style-declaration): New.
1465         * doc/invoke.texi (C-only Warning Options): New.
1466         (Wold-style-declaration): Document it.
1467         (Wextra): Enabled by -Wextra.
1468         * c-opts.c (c_common_post_options): Enabled by -Wextra.
1469         * c-decl.c (declspecs_add_scspec): Replace -Wextra with
1470         -Wold-style-declaration.
1471
1472 2007-01-02  Kazu Hirata  <kazu@codesourcery.com>
1473
1474         * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
1475         * cfgbuild.c (find_basic_blocks): Likewise.
1476         * cfgrtl.c (rtl_create_basic_block): Likewise.
1477         * function.c (temp_slots_at_level): Likewise.
1478         * reg-stack.c (stack_regs_mentioned): Likewise.
1479         * regclass.c (allocate_reg_info): Likewise.
1480         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
1481         set_bb_for_stmt, move_block_to_fn): Likewise.
1482         * tree-complex.c (tree_lower_complex): Likewise.
1483         * vec.h (VEC_safe_grow_cleared): New.
1484
1485 2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>
1486
1487         * c-common.c(c_common_nodes_and_builtins): Since variants of
1488         void_type_node get built before it is given a name, we need to
1489         give those variants the name, too.
1490         (complete_array_type): We need to work with the canonical main
1491         type of the array, from which we will build the qualified version.
1492         * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
1493         * print-tree.c (print_node): Display canonical type information
1494         for each type.
1495         * stor-layout.c (layout_type): When we don't know the
1496         alignment of a type for which we're building an array, we end up
1497         guessing wrong, so make the type require structural equality.
1498         * tree.c (make_node_stat): When we build a new type, it is its
1499         own canonical type.
1500         (build_type_attribute_qual_variant): When building an attribute
1501         variant, its canonical type is the non-attribute variant. However,
1502         if the attributes are target-dependent and they differ, we need to
1503         use structural equality checks for this type.
1504         (build_qualified_type): A qualified type is not equivalent to its
1505         unqualified variant; set the canonical type appropriately.
1506         (build_distinct_type_copy): When building a distinct type from
1507         another type, the new type is its own canonical type.
1508         (build_variant_type_copy): When building a new type variant, we
1509         assume that it is equivalent to the original type.
1510         (build_pointer_type_for_mode): When building a pointer type, also
1511         build a canonical type pointer.
1512         (build_reference_type_for_mode): When building a reference type,
1513         also build a canonical type reference.
1514         (build_index_type): When we can't hash an index type (e.g.,
1515         because its maximum value is negative), the index type requires
1516         structural equality tests.
1517         (build_array_type): Build the canonical form of an array type.
1518         (build_function_type): Function types require structural equality,
1519         because they contain default arguments, attributes, etc.
1520         (build_method_type_directly): Ditto for method types.
1521         (build_offset_type): Build the canonical offset type.
1522         (build_complex_type): Build the canonical vector type.
1523         (make_vector_type): Build the canonical vector type.
1524         * tree.h (TYPE_CANONICAL): New.
1525         (TYPE_STRUCTURAL_EQUALITY_P): New.
1526         (SET_TYPE_STRUCTURAL_EQUALITY): New.
1527         (struct tree_type): Added "canonical" field.
1528         * params.h (VERIFY_CANONICAL_TYPES): New.
1529         * doc/c-tree.texi (TYPE_CANONICAL): Document.
1530         (TYPE_STRUCTURAL_EQUALITY_P): Document.
1531         (SET_TYPE_STRUCTURAL_EQUALITY): Document.
1532         * doc/invoke.texi (verify-canonical-types): Document --param
1533         parameter for verifying canonical types.
1534
1535 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1536
1537         * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
1538         powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
1539         powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
1540         powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
1541         tm_file.
1542         * config/rs6000/e500.h: New.
1543         * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
1544         TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
1545         Remove.
1546         * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
1547         TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
1548         TARGET_E500_DOUBLE): Remove.
1549         * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
1550         TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
1551         * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
1552         * config/rs6000/rs6000.c (rs6000_override_options): Use
1553         CHECK_E500_OPTIONS.
1554
1555 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1556
1557         * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
1558         TARGET_E500_DOUBLE), not TARGET_E500, for %y.
1559         (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
1560         rs6000_emit_cmove): Don't check TARGET_E500.
1561         * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
1562         sordered): Don't check TARGET_E500.
1563
1564 2007-01-01  Eric Christopher  <echristo@apple.com>
1565
1566         * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
1567         HARD_REGISTER_NUM_P.
1568
1569 2007-01-01  Roger Sayle  <roger@eyesopen.com>
1570
1571         * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
1572         "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
1573         has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
1574         eq/ne Y".
1575
1576 2007-01-01  Mike Stump  <mrs@apple.com>
1577
1578         * configure.ac: Remove support for building with Apple's gcc-3.1.
1579
1580 2007-01-02  Joseph Myers  <joseph@codesourcery.com>
1581
1582         PR middle-end/30311
1583         * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
1584         REG is a hard register.  Do not modify REG before calling
1585         subreg_nregs.
1586         * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
1587         multiple of the size of YMODE for certain lowpart cases.
1588
1589 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1590
1591         PR middle-end/30253
1592         * gimplify (voidify_wrapper_expr): Update for
1593         GIMPLE_MODIFY_STMT.
1594
1595 2007-01-01  Andreas Schwab  <schwab@suse.de>
1596
1597         PR target/29166
1598         * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
1599         save of BR0 in extra_spill_size instead of spill_size.
1600         (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
1601         area.
1602         (ia64_expand_epilogue): Restore BR0 from its new location.
1603
1604 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1605
1606         * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
1607         Use a temporary variable if the left hand side is not a gimple
1608         register.
1609
1610 2007-01-01  Andrew Pinski  <pinskia@gmail.com>
1611
1612         * gimplify.c (gimplify_return_expr): Make the temporary variable
1613         for the return expression, a gimple register variable.
1614
1615 2007-01-01  Jan Hubicka  <jh@suse.cz>
1616
1617         * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
1618         INSN_LIST.
1619
1620 2007-01-01  Mike Stump  <mrs@apple.com>
1621
1622         * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
1623         .literal16.
1624         * config/darwin.c (machopic_select_rtx_section): Use
1625         HAVE_GAS_LITERAL16.
1626         (darwin_mergeable_constant_section): Likewise.
1627         * configure: Regenerate.
1628         * config.in: Regenerate.
1629
1630 2007-01-01  Jan Hubicka  <jh@suse.cz>
1631             Andrew Pinski  <pinskia@gmail.com>
1632
1633         * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
1634         before starting IPA passes.