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PR tree-opt/25911
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
2
3         PR tree-opt/25911
4         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
5         to an if check.
6
7 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
8
9         * toplev.c: Fix thinko.
10
11 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
12             Marcin Dalecki  <martin@dalecki.de>
13
14         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
15         (push_srcloc): Use XNEW.
16         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
17
18 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
19
20         * df-core.c (df_set_blocks): Deleted all variable.
21
22 2006-01-28  Ian Lance Taylor  <ian@airs.com>
23
24         * cgraphunit.c (cgraph_assemble_pending_functions): Call
25         cgraph_output_pending_asms.
26
27 2006-01-28  Zack Weinberg  <zackw@panix.com>
28
29         * c.opt: Add -W(no-)overlength-strings.
30         * doc/invoke.texi: Document it.
31         * c-opts.c (c_common_handle_option): -pedantic implies
32         -Woverlength-strings, if not explicitly disabled already.
33         (c_common_post_options): -Woverlength-strings defaults to off, and
34         is always off for C++.
35         * c-common.c (fix_string_type): Issue warning about strings longer
36         than is portable only if warn_overlength_strings.  Rearrange code
37         a little for clarity.
38         * configure.in: Check for -Wno-overlength-strings as well before
39         enabling -pedantic in stage 1.
40         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
41         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
42
43         * genconditions.c (write_header, write_one_condition)
44         (write_conditions, write_writer): Consolidate very long strings
45         that were broken up to fit in C89 portable limit.  Don't use
46         printf when fputs will do.
47
48 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
49
50         * combine.c (simplify_comparison <AND>): Check
51         TRULY_NOOP_TRUNCATION before start using a subreg.
52
53         * config/mips/mips.md (*branch_zero<mode>,
54         *branch_zero<mode>_inverted, *branch_equality<mode>,
55         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
56         Remove mode check from comparisons.
57
58 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
59
60         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
61
62 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
63
64         * expmed.c (const_mult_add_overflow_p): Remove.
65         * expr.h: Remove the prototype for const_mult_add_overflow_p.
66
67         * recog.c (validate_replace_rtx_subexp): Remove.
68         * recog.h: Remove the prototype for
69         validate_replace_rtx_subexp.
70
71         * integrate.h: Remove the prototype for
72         copy_decl_for_inlining.
73         * rtl.h: Remove the prototype for mark_constant_function.
74         * tree-vectorizer.h: Remove the prototype for
75         vect_strip_conversion.
76
77         * modulo-sched.c (create_partial_schedule,
78         free_partial_schedule, reset_partial_schedule): Make them
79         static.
80
81         * hooks.c (hook_bool_rtx_int_false): Remove.
82         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
83
84 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
85
86         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
87         and -mlong-double-128 are incompatible.
88         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
89         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
90         (TARGET_LIBGCC2_CFLAGS): Define.
91         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
92         (TARGET_LIBGCC2_CFLAGS): Same.
93         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
94
95 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
96
97         PR c/19606.
98         * c-typeck.c (build_binary_op): Perform implicit casts of
99         operands before shortening them.
100
101         * cfgloopmanip.c (split_loop_bb): Remove.
102         * cfgloop.h: Remove the prototype for split_loop_bb.
103
104         * cfgloop.c (flow_loop_outside_edge_p): Remove.
105         * cfgloop.h: Remove the prototype for
106         flow_loop_outside_edge_p.
107
108         * emit-rtl.c (init_virtual_regs): Make it static.
109         * function.h: Remove the prototype for init_virtual_regs.
110
111         * recog.c (peephole2_optimize): Make it static.
112         * recog.h: Remove the prototype for peephole2_optimize.
113
114 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
115
116         * df-scan.c (df_record_entry_block_defs): Check if
117         INCOMING_RETURN_ADDR_RTX is defined.
118
119 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
120             Kenneth Zadeck <zadeck@naturalbridge.com>
121
122         PR rtl-optimization/24762
123         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
124         * targhooks.c (hook_void_bitmap): New hook prototype.
125         * targhoohs.h (hook_void_bitmap): Ditto.
126         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
127         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
128         * target.h (live_on_entry): New function pointer.
129         * df-scan.c (df_all_hard_regs): Removed.
130         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
131         (df_scan_free_internal): Added df->entry_block_defs.
132         (df_scan_alloc): Ditto.
133         (df_scan_dump): Ditto.
134         (df_uses_record): Plumbed flag field properly thru calls.
135         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
136         This part fixes PR24762.
137         (df_bb_refs_record): Added code to make the frame and arg
138         pointers live in EH blocks.
139         (df_refs_record): Added call to df_record_entry_block_defs.
140         (df_record_entry_block_defs): New function.
141         * df-core.c: Added comments to describe new artifical defs.
142         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
143         (entry_block_defs): New field in struct df.
144         (df_all_hard_regs): Deleted.
145         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
146         * df-problems.c (df_ru_bb_local_compute_process_def):
147         Added code to handle artifical defs in the entry to a function.
148         (df_ru_bb_local_compute): Ditto.
149         (df_rd_bb_local_compute_process_def):  Ditto.
150         (df_rd_bb_local_compute): Ditto.
151         (df_lr_bb_local_compute): Ditto.
152         (df_ur_bb_local_compute): Ditto.
153         (df_urec_bb_local_compute):  Ditto.
154         (df_chain_create_bb):  Ditto.
155         (df_ur_local_finalize): Removed entry.
156         (df_urec_init): Ditto.
157         (df_urec_local_finalize): Ditto.
158         (df_ri_bb_compute): Added detection of last use of pseudos.
159         * Makefile.in (df-scan.o): Updated dependencies.
160         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
161         * config/mips/mips.c (mips_set_live_on_entry): Added.
162         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
163         for target hook.
164         * dce.c (marked_insn_p): Added code to handle artifical defs.
165
166 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
167
168         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
169         intrinsic.
170         (_mm_cvtsi128_si64): Likewise.
171         (_mm_cvtsd_si64): Likewise.
172         (_mm_cvttsd_si64): Likewise.
173         (_mm_cvtsi64_sd): Likewise.
174         (_mm_cvtsi64_si128): Likewise.
175         * config/i386/mmintrin.h (_m_from_int64): Likewise.
176         (_mm_cvtsi64_m64): Likewise.
177         (_m_to_int64): Likewise.
178         (_mm_cvtm64_si64): Likewise.
179         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
180         (_mm_cvttss_si64): Likewise.
181         (_mm_cvtsi64_ss): Likewise.
182         (_mm_cvtss_f32): Likewise.
183
184 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
185
186         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
187         for pragma redefine_extname.
188
189 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
190
191         PR target/25864
192         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
193         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
194         -mno-minimal-toc to previous content.
195         (bispecs): Remove goal.
196         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
197         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
198         compatibility aliases on powerpc-*-*gnu*.
199         * config/rs6000/libgcc-ppc-glibc.ver: New file.
200         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
201         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
202         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
203         (ldblspecs): New goal.
204         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
205         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
206         _df_to_tf.
207         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
208         L_sf_to_tf or L_df_to_tf is defined.
209
210 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
211             Alan Modra  <amodra@bigpond.net.au>
212
213         PR target/25864
214         * config/rs6000/linux.h (POWERPC_LINUX): Define.
215         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
216         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
217         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
218         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
219         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
220         (rs6000_override_options): Initialize rs6000_ieeequad.
221         Initialize TFmode format to ibm_extended_format if not
222         TARGET_IEEEQUAD.
223         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
224         ieeelongdouble.
225         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
226         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
227         (function_arg_advance): IBM long double passed in two FPRs, not
228         split.
229         (function_arg): IBM long double passed in FPRs.
230         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
231         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
232         Only multireg GPR aligned.
233         (rs6000_init_libfuncs): Enable IBM long double functions if not
234         IEEEQUAD.
235         (rs6000_generate_compare): Use IBM long double compare if not
236         TARGET_IEEEQUAD.
237         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
238         (TARGET_IEEEQUAD): Define.
239         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
240         not TARGET_IEEEQUAD.
241         * config/rs6000/rs6000.md: Enable TFmode patterns if
242         !TARGET_IEEEQUAD.
243         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
244         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
245         and -mlong-double-128 are incompatible.
246         * doc/invoke.texi (-mabi): Collect options together.  Add
247         ibmlongdouble and ieeelongdouble.
248
249 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
250
251         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
252         opaque type.
253         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
254         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
255         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
256         * rtl.h (rtunion_def): Remove rt_ptr.
257         (X0PTR): Delete.
258         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
259         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
260         * config/i386/winnt.c (i386_pe_mark_dllexport)
261         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
262
263 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
264
265         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
266
267 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
268
269         PR other/24829
270         PR target/24831
271         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
272         pthread_key_delete.  From John David Anglin.  gthrw-ify
273         pthread_getunique_np only if it it's not a macro.  Delete
274         UNUSED macro.
275         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
276         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
277         __gthread_objc_condition_signal, __gthread_key_delete): Add
278         "__attribute__ ((__unused__))" to unused arguments.
279         (__gthread_recursive_mutex_init_function): Add missing return.
280         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
281         gthr-posix95.h: Use macro-based approach for name redirection
282         on targets missing weakref.
283
284 2006-01-26  Zack Weinberg  <zackw@panix.com>
285
286         * genconditions.c (write_header): In generated code, #ifdef out
287         all includes and fake declarations, except includes of bconfig.h
288         and system.h, unless GCC_VERSION >= 3001.  Do not include
289         gensupport.h in any case.
290         (write_conditions): Generate a definition of struct c_test.  Add
291         a comment to the generated #endif.
292         (write_one_condition): Escape backslashes in string too.
293         (write_writer): Generated code must escape backslashes and quote
294         marks (but not newlines) in the strings it writes.
295         * Makefile.in (build/gencondmd.o): Update dependencies.
296
297 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
298
299         PR target/25961
300         * Makefile.in (insn-automata.o): Add header file dependencies.
301         * genautomata.c: Add includes.
302
303 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
304
305         PR target/25961
306         * Makefile.in (insn-automata.o): Add -Wno-error flag.
307
308 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
309
310         * configure.ac: Expect target tools paths to be passed from the toplevel
311         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
312         AS_SET_VAR_IF.
313         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
314
315 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
316
317         PR c/25892
318         * c.opt (Wpointer-sign): Init to -1.
319         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
320         OPT_pedantic, to 0 otherwise.
321         * doc/invoke.texi: Update.
322
323 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
324
325         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
326         constants provided by 80387 instructions in the destination mode.
327
328 2006-01-26  Richard Guenther  <rguenther@suse.de>
329             Andrew Pinski  <pinskia@physics.uc.edu>
330
331         PR tree-opt/21470
332         partial PR tree-opt/17064
333         * tree-ssa-structalias.c (intra_create_variable_infos):
334         Create heap variables for incoming parameters if
335         flag_argument_noalias > 1.
336         (find_what_p_points_to): Look through default defs of
337         parameter decls.
338
339 2006-01-26  Jeff Law  <law@redhat.com>
340
341         PR ada/25900
342         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
343         with a VR_ANTI_RANGE and the VR_ANTI_RANGEis completely contained
344         within the VR_RANGE, use the VR_RANGE as the result, not the
345         VR_ANTI_RANGE.
346         (adjust_range_with_scev): Reject ranges from SCEV which are out
347         of bounds for the type.
348
349 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
350
351         * tree-ssa-alias.c (maybe_create_global_var): Change
352         subvar walking to an assertion that we don't have subvar'd variables.
353
354 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
355
356         PR C/25861
357         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
358         Use a new variable, inner.  PARM_DECLs are always non-weak.
359
360 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
361
362         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
363         --disable-checking.
364
365 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
366
367         * config/mips/mips.md (*clear_upper32): New combiner pattern.
368
369 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
370
371         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
372         (smax_insn, smin_insn, smax_0, smin_0): New.
373
374 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
375
376         PR target/25947
377         * config/cris/cris.c (cris_order_for_addsi3): New function.
378         * config/cris/cris-protos.h: Prototype it.
379         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
380         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
381         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
382         (split for "op.S1 [rx=rx+i],ry (swapped)")
383         (split for "op(s|u).S1 [rx=rx+i],ry")
384         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
385         Apply cris_order_for_addsi3 when generating addsi3 insns.
386
387 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
388
389         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
390         (TREE_BLOCK): Add call to EXPR_CHECK.
391
392 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
393
394         PR 25886
395         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
396         * tree-pretty-print.c (dump_omp_clause): Extract from ...
397         (dump_omp_clauses): ... here.
398         (dump_generic_node): Handle OMP_CLAUSE.
399         * tree.c (omp_clause_num_ops): New.
400         (omp_clause_code_name): New.
401         (tree_code_size): Handle OMP_CLAUSE.
402         (tree_size): Likewise.
403         (make_node): Document handling of OMP_CLAUSE.
404         (tree_node_structure): Handle OMP_CLAUSE.
405         (omp_clause_check_failed): New.
406         (omp_clause_range_check_failed): New.
407         (omp_clause_operand_check_failed): New.
408         (build_omp_clause): New.
409         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
410         * tree.h (enum omp_clause_code): Declare.
411         (OMP_CLAUSE_SUBCODE_CHECK): Define.
412         (OMP_CLAUSE_RANGE_CHECK): Define.
413         (OMP_CLAUSE_ELT_CHECK): Define.
414         (omp_clause_check_failed): Declare.
415         (omp_clause_operand_check_failed): Declare.
416         (omp_clause_range_check_failed): Declare.
417         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
418         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
419         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
420         (OMP_CLAUSE_LASTPRIVATE): Likewise.
421         (OMP_CLAUSE_IF_EXPR): Likewise.
422         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
423         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
424         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
425         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
426         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
427         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
428         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
429         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
430         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
431         (OMP_CLAUSE_CODE): Define.
432         (OMP_CLAUSE_SET_CODE): Define.
433         (OMP_CLAUSE_CODE): Define.
434         (OMP_CLAUSE_OPERAND): Define.
435         (struct tree_omp_clause): Declare.
436         (union tree_node): Add field 'omp_clause'.
437         * treestruct.def (TS_OMP_CLAUSE): Define.
438         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
439         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
440         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
441         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
442         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
443         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
444         (OMP_CLAUSE): Define.
445         * print-tree.c (print_node): Handle OMP_CLAUSE.
446         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
447         * c-typeck.c: Likewise.
448         * gimplify.c: Likewise.
449         * c-omp.c: Likewise.
450         * tree-nested.c: Likewise.
451         * tree-inline.c: Likewise.
452         * c-parser.c: Likewise.
453         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
454         clauses.
455
456 2006-01-25  Roger Sayle  <roger@eyesopen.com>
457
458         PR rtl-optimization/25703
459         * combine.c (try_combine): Handle zero_extract and strict_low_part
460         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
461
462 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
463
464         * global.c: Fix comment typos.
465
466 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
467
468         PR target/25758
469         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
470         Use output_addr_const instead of assemble_name.
471
472 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
473
474         * Makefile.in (sched-vis.o): Update dependencies.
475         * haifa-sched.c (sched_finish): Clear current_sched_info.
476         * cfg.c (dump_bb_info): New, split from dump_flow_info.
477         (dump_flow_info): Call it.
478         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
479         a slim RTL dump.
480         * basic-block.h (dump_bb_info): Declare.
481         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
482         option, and apply options only for dump files whose TDF_RTL,
483         TDF_TREE, or TDF_IPA bits match.
484         * rtl.h: Declare new functions exported from sched-vis.c.
485         * sched-vis.c: Enable also if scheduling is not used.
486         (print_value): Print the mode of registers if not inside scheduling.
487         (print_insn): Make it work outside the scheduler.  Beautify the output
488         a bit.
489         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
490
491 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
492
493         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
494         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
495         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
496         depending on the value of CONSTANT_POOL_ADDRESS_P.
497         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
498         SYMBOL_REF_DECL.
499         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
500         rather than SYMBOL_REF_DECL.
501         (rtx_constant_pool): Remove const_rtx_sym_htab.
502         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
503         (init_varasm_status): Don't initialize const_rtx_sym_htab.
504         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
505         Remove handling of const_rtx_sym_htab.
506         (find_pool_constant): Delete.
507         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
508         rather than find_pool_constant.
509         (get_pool_constant_for_function): Delete.
510         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
511         find_pool_constant.
512         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
513         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
514         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
515         (SYMBOL_REF_CONSTANT): New macro.
516         (get_pool_constant_for_function): Delete.
517         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
518         rather than SYMBOL_REF_DECL.
519         (i386_pe_mark_dllimport): Likewise.
520         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
521         rather than SYMBOL_REF_DECL.
522         * config/darwin.c (machopic_indirect_data_reference): Likewise.
523         (machopic_indirect_call_target): Likewise.
524
525 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
526
527         * flow.c (delete_noop_moves): Add missing EOL to dump message.
528
529 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
530
531         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
532
533 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
534
535         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
536
537 2006-01-24  David Daney  <ddaney@avtrex.com>
538
539         PR java/25816
540         * configure.ac (enable_tls): New enable option.
541         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
542         * configure: Regenerate.
543         * doc/install.texi (--enable-tls): Document new option.
544         (--disable-tls): Ditto.
545
546 2006-01-24  Richard Henderson  <rth@redehat.com>
547
548         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
549         * alias.c (true_dependence): Respect it.
550         (canon_true_dependence, write_dependence_p): Likewise.
551         * builtins.c (get_builtin_sync_mem): Set it.
552
553 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
554
555         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
556         efficient way.
557
558 2006-01-24  DJ Delorie  <dj@redhat.com>
559
560         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
561         for storing constants in single-bit bitfields.
562
563 2006-01-25  Ben Elliston  <bje@au.ibm.com>
564
565         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
566
567 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
568
569         PR tree-opt/25860
570         * tree-ssa-pre.c (phi_translate): Return NULL
571         for AGGREGATE_TYPE's.
572
573 2006-01-24  Zack Weinberg  <zackw@panix.com>
574
575         * genautomata.c (process_state_for_insn_equiv_partition):
576         Use xcalloc for insn_arcs_array.
577         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
578         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
579
580 2006-01-24  Richard Henderson  <rth@redhat.com>
581
582         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
583         update all callers.
584
585 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
586
587         PR rtl-optimization/25890
588         PR rtl-optimization/25905
589         * combine.c (expand_compound_operation, expand_field_assignment):
590         Fail if the bitfield's final position is out of bounds.
591
592 2006-01-24  Ian Lance Taylor  <ian@airs.com>
593
594         PR middle-end/25930
595         * cgraphunit.c (cgraph_output_in_order): Don't clear
596         cgraph_asm_nodes until after asm strings have been output.
597
598 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
599
600         * fix-header.c (read_scan_file): Add new parameter imultilib when
601         calling register_include_chains.
602
603 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
604
605         * omp-low.c: Update documentation.
606
607 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
608             Daniel Berlin  <dberlin@dberlin.org>
609
610         PR tree-opt/25315
611         PR tree-opt/25857
612         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
613         return from the function.
614
615 2006-01-22  Zack Weinberg  <zackw@panix.com>
616
617         * rtl.def (match_code): Add second argument.
618         * genpreds.c (write_extract_subexp): New function.
619         (write_match_code): Add path argument.  Use write_extract_subexp.
620         (write_predicate_expr): Pass path to write_match_code.
621         (mark_mode_tests): MATCH_CODE applied to a subexpression does
622         not perform a mode test.
623         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
624         a subexpression does not constrain the top-level code set.
625         * read-rtl.c (read_rtx_variadic): New function.
626         (read_rtx_1): Use it; allow AND and IOR to be variadic.
627         * doc/md.texi: Document new notation.
628         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
629         (cmpsi_operand): ... here, using new notation.
630
631 2006-01-22  Zack Weinberg  <zackw@panix.com>
632
633         * varray.c: Remove GENERATOR_FILE #ifdefs.
634
635 2006-01-22  Zack Weinberg  <zackw@panix.com>
636
637         * genautomata.c (output_reserved_units_table): Emit nothing if
638         description->query_units_num is zero.  Remove extra blank line.
639         (output_cpu_unit_reservation_p): Short circuit
640         if description->query_units_num is zero.
641
642 2006-01-22  Zack Weinberg  <zackw@panix.com>
643
644         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
645         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
646         nor any of the random handful of variables that used to be necessary
647         when this program was linked with rtlanal.o.  Prune set of forward
648         function declarations.
649         (struct attr_desc): Remove static_p field.
650         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
651         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
652         (attr_string): Do not read the character one past the length of
653         the string.
654         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
655         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
656         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
657         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
658         (make_automaton_attrs): New.
659         (main): Do not call into genautomata.  Call local gen_bypass
660         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
661         Remove special case for insn_alts.
662         * genautomata.c: Include gensupport.h; not genattrtab.h nor
663         varray.h (leftover from previous change).  Prune set of forward
664         function declarations.  Remove state_alts fields from all
665         structures.  Remove state_alts_table from struct automaton.
666         Make everything except main static.  Do not maintain num_dfa_decls.
667         Do not maintain state_alts fields of various structures.
668         (process_decls): Don't validate condexp for dm_insn_reserv decls.
669         (add_arc): Remove state_alts argument.  All callers updated.
670         (output_reserved_units_table): Emit #ifdef here...
671         (output_tables): ...not here.  Don't generate state_alts tables.
672         (expand_automata): Don't generate attributes.
673         (write_automata): Don't generate state_alts functions.
674         (main): New function.
675         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
676         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
677         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
678         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
679         (BYPASS_P_FUNC_NAME, output_state_alts_table)
680         (output_automata_list_state_alts_code, output_internal_state_alts_func)
681         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
682         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
683         Delete.
684         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
685         * genattrtab.h: Delete file.
686         * Makefile.in (OBJS-common): Add insn-automata.o.
687         (insn-automata.o): New rule.
688         (simple_generated_c): Add insn-automata.c.
689         (build/genattrtab.o, build/genautomata.o): Update dependencies.
690         (genprogmd): Add automata.
691         (build/genattrtab): Needs no extra objects nor libraries.
692         (build/genautomata): Needs build/vec.o and -lm.
693
694 2006-01-22  Zack Weinberg  <zackw@panix.com>
695
696         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
697         (output_dfa_max_issue_rate, locked_states_num): Delete.
698         (struct automaton): Add locked_states field.
699         (output_dead_lock_vect): Save number of locked states in
700         automaton->locked_states.  If it is zero, don't print anything.
701         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
702         (output_internal_dead_lock_func): Only test the dead_lock_vect
703         for automata that have locked states.
704         (output_statistics): Always print the number of locked states for
705         each automaton.  Calculate total number of locked states here.
706         (write_automata): Don't call output_dfa_max_issue_rate.
707         * genattrtab.c: Define length_unit_log as a const variable.
708         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
709         max_insn_queue_index const.
710         * final.c (length_unit_log): Declare const.
711         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
712
713 2006-01-22  Zack Weinberg  <zackw@panix.com>
714
715         * genautomata.c:  Include vec.h, not varray.h.
716         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
717         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
718         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
719         VEC_* macros operating on appropriately typed vectors, or to
720         malloced arrays when the size is known in advance.  Const-ify
721         many char* variables and function arguments.  No functional changes.
722         * Makefile.in (build/varray.o): Delete rule.
723         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
724         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
725
726 2006-01-22  Zack Weinberg  <zackw@panix.com>
727
728         * gensupport.c: Define get_insn_name and record_insn_name here.
729         (read_md_rtx): Call record_insn_name as appropriate.
730         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
731         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
732         * genpreds.c, genrecog.c: Don't define get_insn_name nor
733         record_insn_name.
734         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
735         (BUILD_VARRAY): Delete.
736         (genprognormal): Rename genprogmd.  Fold in all programs from
737         genprognoprint; also attrtab.
738         (build/genattrtab): Just mention genautomata.o and varray.o.
739         Reorganize a bit, add comments to make the categories clearer.
740
741 2006-01-22  Zack Weinberg  <zackw@panix.com>
742
743         * genconditions.c (condition_table, add_condition): Delete.
744         (write_conditions): Don't emit n_insn_conditions nor
745         insn_elision_unavailable.  Issue the gcc version #ifdef here,
746         inside the table, with no #else clause ...
747         (write_header): ...not here.
748         (write_writer): New function.
749         (main): Don't initialize condition_table.  Use add_c_test.
750         Call write_writer.
751         * gensupport.c (init_md_reader_args_cb): Handle multiple input
752         files on the command line.
753         (maybe_eval_c_test): Don't check insn_elision_unavailable.
754         Return -1 if there is no entry in the table, don't abort.
755         (add_c_test, traverse_c_tests): New functions.
756         * gensupport.h (insn_elision_unavailable, insn_conditions)
757         (n_insn_conditions): Delete declarations.
758         (add_c_test, traverse_c_tests): Declare.
759         * read-rtl.c: Include gensupport.h.
760         (read_conditions): New function.
761         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
762         (read_rtx_1): If we get EOF when we were looking for an initial
763         open paren, return 0.  Call read_conditions when appropriate.
764         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
765         dummy-conditions.o.  Eliminate references to insn-conditions.o,
766         or change them to build/gencondmd.o, as appropriate.  Remove
767         insn-constants.h from $(simple_generated_h) and insn-conditions.c
768         from $(simple_generated_c).  For all files remaining in those
769         two lists, add insn-conditions.md to the generator command line.
770         Give insn-constants.h/s-constants their own rules.  Add rules
771         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
772         (build/read-rtl.o): Depend on gensupport.h.
773         (genprognormal): Include preds.
774         (genprogearly): Rename genprognoprint; only difference is now that
775         they don't link with $(BUILD_PRINT).
776         * dummy-conditions.c: Delete.
777
778 2006-01-22  Zack Weinberg  <zackw@panix.com>
779
780         * genextract.c: Don't include insn-config.h.  Do include vec.h.
781         Declare vectors of int, char, and locstr.
782         (locstr): New typedef.
783         (struct extraction): Make all array fields into bare pointers.
784         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
785         (insn_code_number): Delete.
786         (accum_extract): New struct.
787         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
788         (gen_insn): Take insn_code_number as an argument.  Use an
789         accum_extract structure instead of loading data directly into
790         a struct extraction, and having to know how big it might get.
791         (walk_rtx): Operate entirely on an accum_extract structure.
792         (print_path): Avoid unnecessary use of printf.
793         (print_header): New function, split out of main.  Distinguish
794         more carefully between an unrecognizable insn and an insn that
795         has the code number of a define_expand.
796         (main): Pass insn_code_number to gen_insn.  Call print_header
797         only after parsing.  Avoid unnecessary use of printf.
798         * Makefile.in (build/vec.o): New rule.
799         (build/genextract): Depend on build/vec.o.
800         (build/genextract.o): Don't depend on insn-config.h.
801
802 2006-01-22  Zack Weinberg  <zackw@panix.com>
803
804         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
805         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
806         practical.  Eliminate per-generator-program link rules.
807
808 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
809
810         PR middle-end/24437
811         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
812         with a call expr to ...
813         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
814
815 2006-01-23  Richard Guenther  <rguenther@suse.de>
816
817         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
818         before make_edge with conditional EDGE_TRUE_VALUE.
819
820 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
821         Jan Hubicka  <jh@suse.cz>
822         Richard Guenther  <rguenther@suse.de>
823
824         PR rtl-optimization/25654
825         * cfgexpand.c (aggregate_contains_union_type): New function.
826         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
827         for structure variables that contain a union type.
828
829 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
830
831         * gengtype.c (new_structure): Return the structure.
832         (create_option): Add an extra "next" argument.
833         (create_field): New function.
834         (adjust_field_rtx_def): Use create_option and create_field.
835         Remove a now-unnecessary call to find_structure.
836         (adjust_field_tree_def): Likewise.
837         (note_yacc_type): Remove an unnecessary call to find_structure.
838         * gengtype.h (new_structure): Return the structure.
839         (create_option): Add an extra argument.
840         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
841         (option): Adjust calls to create_option.
842
843 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
844
845         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
846
847 2006-01-22  Paul Brook  <paul@codesourcery.com>
848         Peter Barada  <peter@the-baradas.com>
849
850         * config/m68k/m68k.md: Add Coldfire FPU support.
851         Define FP mode macro and associated attributes.
852         Use it for float mode patterns.
853         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
854         (LIBCALL_VALUE): Use m68k_libcall_value.
855         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
856         (m68k_function_value): Ditto.
857         (emit_move_sequence): Ditto.
858         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
859         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
860         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
861         (MULTILIB_EXCEPTIONS): Ditto.
862         * config/m68k/m68k.opt: Add mcfv4e.
863         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
864         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
865         (m68k_output_function_prologue): Save ColdFire FPU registers.
866         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
867         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
868         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
869         ColdFire FPU registers.
870         (m68k_libcall_value, m68k_function_value): New functions.
871         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
872         (LIBCALL_VALUE): Use m68k_libcall_value.
873         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
874         (MASK_COLDFIRE): Add MASK_CFV4E.
875         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
876         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
877         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
878         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
879         (GO_IF_LEGITIMATE_ADDRESS): Use it.
880         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
881         * doc/invoke.tex: Document -mcfv4e on m68k.
882
883 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
884
885         * doc/contribute.texi: Change CVS to SVN and update the corresponding
886         URL.
887
888 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
889
890         PR c++/16190
891         * c-opts.c (c_common_handle_option): Don't include
892         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
893         * doc/invoke.texi (C++ Dialect Options): Document that
894         -Wnon-virtual-dtor is no longer included in -Wall.
895
896 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
897
898         * gcov.c (print_version), gcov-dump.c (print_version),
899         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
900         dates.
901
902 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
903
904         * df-scan.c (problem_SCAN): Added NULL reset function.
905         (df_scan_reset_blocks): Added code to call reset block function
906         (df_bb_refs_delete) Fixed comment.
907         (df_insn_refs_delete): Made tolerant of deleting non existent info
908         for dataflow problems that need to be reset.
909         * df-core.c (df_set_blocks): Ditto.
910         * df.h (struct df_problem): Added reset_fun.
911         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
912         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
913         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
914         functions to clear out all references to def-use or use-def chains.
915
916 2006-01-21  Ben Elliston  <bje@au.ibm.com>
917
918         * varasm.c (assemble_real): Initialise data array.
919
920 2006-01-20  Paul Brook  <paul@codesourcery.com>
921
922         Merge from csl-arm-branch.
923         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
924         * config/arm/arm.md (movdi): Force operands[1] to a register
925         if we have a non-register source.
926         (*arm_movdi, *movdf_soft_insn): Require that one of the
927         operands be a register.
928         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
929         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
930
931 2006-01-20  DJ Delorie  <dj@redhat.com>
932
933         * varasm.c (initialize_constant_valid_p): Allow pointers
934         initialized from integer constants of lesser precision.
935         (output_constant): Allow non-int-sized pointer modes to be
936         initialized from integer constants.
937
938 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
939
940         PR libstdc++/25524
941         * cppdefault.h (struct default_include): Add multilib flag.
942         * cppdefault.c (cpp_include_defaults): Set it.
943         * c.opt (-imultilib): New option.
944         * c-opts.c (imultilib): New.
945         (c_common_handle_option): Handle -imultilib.
946         (c_common_post_options): Likewise.
947         * c-incpath.c (add_standard_paths, register_include_chains):
948         Likewise.
949         * c-incpath.h (register_include_chains): Add extra parameter.
950         * gcc.c (do_spec_1): Generate -imultilib option.
951         (The Specs Language): Update %I description.
952         (process_command): Update copyright notice.
953         * doc/cppopts.texi (-imultilib): Document.
954         * doc/invoke.texi (-imultilib): Include in option summary.
955         (%I): Update specs documentation.
956
957 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
958
959         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
960
961 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
962
963         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
964         label numbers.
965
966 2006-01-20  Richard Guenther  <rguenther@suse.de>
967         Steven Bosscher <stevenb.gcc@gmail.com>
968
969         PR rtl-optimization/24626
970         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
971         EDGE_TRUE_VALUE if in RTL mode.
972
973         Revert
974         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
975         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
976
977 2006-01-20  Dirk Mueller  <dmueller@suse.com>
978
979         PR c++/5520
980         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
981         instead of a special NOP marker.
982         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
983         NOP marker handling.
984         * c-common.h (empty_body_warning): Add forward declaration.
985         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
986         Now uses IS_EMPTY_STMT() instead of special NOP markers.
987
988 2006-01-20  Paul Brook  <paul@codesourcery.com>
989
990         * Makefile.in (lang_checks): Keep going if mkdir fails.
991
992 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
993
994         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
995         be able to clean out basic block when not necessary.
996         (df_scan_free): Fixed to properly delete information if df is
997         unused before calling df_finish.
998         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
999         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
1000         or comment typos.
1001         (df_bb_refs_delete): New function.
1002         (df_refs_delete): Moved per block code to df_bb_refs_delete.
1003         * df-core.c (df_set_blocks): Added code to properly clean out
1004         unused blocks if they are not part of the blocks to consider.
1005         Added additional null check.
1006         (df_compact_blocks): Added basic block parameter to free_bb_fun to
1007         be able to clean out basic block when not necessary
1008         * df.h (df_free_bb_function): Ditto.
1009         (df_bb_refs_delete): New function.
1010         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
1011         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
1012         basic block parameter to be able to clean out basic block when not
1013         necessary.
1014         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
1015         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
1016         Fixed to properly delete information if df is unused before
1017         calling df_finish.
1018
1019 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
1020
1021         PR rtl-optimization/25799
1022         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
1023         Corrected confluence operator to remove bits from op2 before oring
1024         with op1 rather than removing bits from op1.
1025         (df_ru_transfer_function): Corrected test on wrong bitmap which
1026         caused infinite loop.  Both of these problems were introduced in
1027         the dataflow rewrite.
1028
1029 2006-01-19  DJ Delorie  <dj@redhat.com>
1030
1031         * reload1.c (find_reload_regs): Note the details of reload
1032         failures in the dump file.
1033         (spill_failure): Likewise.
1034
1035 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
1036
1037         * loop-iv.c: Include df.h and hashtab.h.
1038         (enum iv_grd_result): New enum.
1039         (DF_REF_IV, DF_REF_IV_SET): New macros.
1040         (struct biv_entry): New.
1041         (df, bivs): New global variables.
1042         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
1043         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
1044         Removed.
1045         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
1046         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
1047         analyzed_for_bivness_p, record_biv): New functions.
1048         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
1049         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
1050         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
1051         UD chains.
1052         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
1053         analysed.
1054         (iv_number_of_iterations): Use new interface to iv analysis.
1055         * loop-unroll.c: Do not include varray.h.
1056         (analyze_iv_to_split_insn): Use new interface to iv
1057         analysis.
1058         * loop-unswitch.c (may_unswitch_on): Ditto.
1059         * df.c (df_bitmaps_free): Only work for bbs for that structures are
1060         allocated.
1061         (df_bb_modify): Realloc tables to the new index.
1062         (df_find_use): New function.
1063         * df.h (df_find_use): Declare.
1064         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
1065         outmode.
1066         * cfgloop.h (struct rtx_iv): Remove analysed field.
1067         (iv_get_reaching_def): Removed.
1068         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
1069         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
1070         (loop-iv.o): Add df.h and hashtab.h dependency.
1071         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
1072
1073 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
1074
1075         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
1076         Double TFmode.
1077         (__floatundisf, __floatundidf): Likewise.
1078         * libgcc2.h (IS_IBM_EXTENDED): Define.
1079
1080 2006-01-19  DJ Delorie  <dj@redhat.com>
1081
1082         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
1083
1084 2006-01-19  Paul Brook  <paul@codesourcery.com>
1085
1086         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
1087         as nothrow when unwinding tables are disabled.
1088
1089 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1090
1091         PR testsuite/25171
1092         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
1093         of bit-field" when in system header.
1094
1095 2006-01-19  DJ Delorie  <dj@redhat.com>
1096
1097         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
1098         the 16 bit shift limit of the m16c.
1099
1100 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
1101
1102         PR target/22099
1103         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
1104         * config/i386/i386.c (output_set_got): Output the label if we have one
1105         for the TARGET_DEEP_BRANCH_PREDICTION case.
1106
1107 2006-01-19  Jan Hubicka  <jh@suse.cz>
1108             H.J. Lu  <hongjiu.lu@intel.com>
1109             Evandro Menezes <evandro.menezes@amd.com>
1110
1111         * invoke.texi (generic): Document
1112         (i686) Update.
1113         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
1114         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
1115         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
1116         (x86_use_incdec, x86_pad_returns): New variables
1117         (TARGET_CPU_DEFAULT_generic): New constant
1118         (TARGET_CPU_DEFAULT_NAMES): Add generic.
1119         (enum processor_type): Add generic32 and generic64.
1120         * i386.md (cpu attribute): Add generic32/generic64
1121         (movhi splitter): Behave sanely when both partial_reg_dependency and
1122         partial_reg_stall are set.
1123         (K8 splitters): Enable for generic as well.
1124         * predicates.md (incdec_operand): Use TARGET_INCDEC
1125         (aligned_operand): Avoid memory mismatch stalls.
1126         * athlon.md: Enable for generic64, new patterns for 128bit moves.
1127         * ppro.md: Enable for generic32
1128         * i386.c (generic64_cost, generic32_cost): New.
1129         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
1130         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
1131         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
1132         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
1133         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
1134         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
1135         x86_partial_reg_dependency, x86_memory_mismatch_stall,
1136         x86_accumulate_outgoing_args, x86_prologue_using_move,
1137         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
1138         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
1139         Enable for generic.
1140         (x86_use_incdec, x86_pad_returns): New.
1141         (override_options): Add generic32 and generic64, translate "generic"
1142         to generic32/generic64 and "i686" to "generic32", refuse
1143         "generic32"/"generic64" as arch target.
1144         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
1145         (ix86_reorg): Honor PAD_RETURNS.
1146
1147 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
1148
1149         * tree-pretty-print.c (dump_generic_node): Handle
1150         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
1151         * cgraph.c (cgraph_expand_queue): Rename from
1152         cgraph_analyze_queue.  Update all users.
1153         * cgraphunit.c (cgraph_assemble_pending_functions): Process
1154         cgraph_expand_queue.
1155         (cgraph_expand_all_functions): Likewise.
1156         (cgraph_finalize_pending_functions): Remove.  Update callers.
1157
1158         * tree.h (OMP_DIRECTIVE_P): Define.
1159         (OMP_PARALLEL_FN): Define.
1160         (OMP_PARALLEL_DATA_ARG): Define.
1161         (OMP_SECTIONS_SECTIONS): Define.
1162         * tree-pass.h (pass_expand_omp): Declare.
1163         * omp-low.c (struct omp_region): Declare.
1164         (struct omp_context): Remove fields 'parallel_type',
1165         'parallel_start_ix' and 'parallel_start_additional_args'.
1166         Update all users.
1167         (struct omp_for_data): Rename from struct expand_omp_for_data.
1168         (omp_regions): New static variable.
1169         (root_omp_region): New static variable.
1170         (find_omp_clause): Make static.
1171         (is_in_combined_parallel_ctx): Remove.
1172         (is_combined_parallel): New.
1173         (extract_omp_for_data): Move earlier in the file.
1174         (workshare_safe_to_combine_p): New.
1175         (get_ws_args_for): New.
1176         (determine_parallel_type): Move earlier in the file.
1177         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
1178         child function.
1179         (omp_copy_decl): Likewise.
1180         (create_omp_child_function): Likewise.
1181         (lookup_omp_region): New.
1182         (dump_omp_region): New.
1183         (debug_omp_region): New.
1184         (debug_all_omp_regions): New.
1185         (new_omp_region): New.
1186         (scan_omp_parallel): If parallel_nesting_level > 1, the
1187         directive is nested within another parallel directive.
1188         Set OMP_PARALLEL_FN.
1189         (scan_omp_for): Do not try to handle combined parallel+for
1190         cases.
1191         Remove FIXME comment.
1192         (scan_omp_nested): Remove.
1193         (scan_omp_1): Do not call scan_omp_nested when
1194         parallel_nesting_level is > 1.
1195         Do not change the DECL_CONTEXT of local variables found.
1196         (lookup_decl_in_outer_ctx): New.
1197         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
1198         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
1199         (lower_reduction_clauses): Rename from expand_reduction_clauses.
1200         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
1201         If CTX is nested, lookup VAR in the outer context when
1202         building copy assignment.
1203         (lower_send_clauses): Rename from expand_send_clauses.
1204         If CTX is nested, lookup VAR in the outer context when
1205         building copy assignments.
1206         (lower_send_shared_vars): Rename from expand_send_shared_vars.
1207         If CTX is nested, lookup VAR in the outer context when
1208         building copy assignments.
1209         (expand_parallel_call): Rename from build_parallel_call.
1210         Handle combined parallel+workshare cases.
1211         Re-implement to emit code into the CFG.
1212         (list2chain): New.
1213         (expand_omp_parallel): Re-implement to emit code into the CFG.
1214         Call move_sese_region_to_fn to outline the sub-graph
1215         containing the parallel region.
1216         (expand_omp_for_1): Remove.
1217         (expand_omp_for_generic): Re-implement to emit code into the
1218         CFG.
1219         (expand_omp_for_static_nochunk): Likewise.
1220         (expand_omp_for_static_chunk): Likewise.
1221         (expand_omp_for): Likewise.
1222         (expand_omp_sections): Likewise.
1223         (remove_exit_barriers): New.
1224         (expand_omp_synch): New.
1225         (expand_omp): New.
1226         (build_omp_regions_1): New.
1227         (build_omp_regions): New.
1228         (execute_expand_omp): New.
1229         (gate_expand_omp): New.
1230         (pass_expand_omp): Define.
1231         (lower_omp_sections): Rename from expand_omp_sections.
1232         Set OMP_SECTIONS_SECTIONS.
1233         (lower_omp_single_simple): Rename from expand_omp_single_simple.
1234         (lower_omp_single_copy): Rename from expand_omp_single_copy.
1235         (lower_omp_single): Rename from expand_omp_simple.
1236         (lower_omp_master): Rename from expand_omp_master.
1237         (lower_omp_ordered): Rename from expand_omp_ordered.
1238         (lower_omp_critical): Rename from expand_omp_critical.
1239         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
1240         (lower_omp_for): Re-implement.
1241         (lower_omp_parallel): Re-implement.
1242         (lower_regimplify): Rename from expand_regimplify.
1243         (lower_omp_1): Rename from expand_omp_1.
1244         If there are syntax errors in the program, replace every
1245         OpenMP directive with NOP.
1246         Call lower_omp_* instead of expand_omp_*.
1247         (lower_omp): Rename from expand_omp.
1248
1249         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
1250         * tree-gimple.h (enum omp_parallel_type): Remove.
1251         (gimple_boolify): Declare extern.
1252         (find_omp_clause, determine_parallel_type): Remove.
1253
1254         * gimple-low.c (lower_omp_directive): New.
1255         (lower_stmt): Call it.
1256         (record_vars_into): Move from ...
1257         (record_vars): ... here.
1258         Call record_vars_into with current_function_decl.
1259
1260         * gimplify.c (struct gimplify_ctx): Remove fields
1261         combined_pre_p and combined_ctxp.  Update users.
1262         (get_formal_tmp_var): Add documentation.
1263         (gimple_boolify): Make extern.
1264         (gimplify_expr_in_ctx): Remove.  Update callers.
1265         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
1266         will always be a BIND_EXPR.
1267         (gimplify_expr): Handle OMP_RETURN_EXPR.
1268         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
1269         (OMP_PARALLEL): Add 3 operands.
1270         (OMP_SECTIONS): Add 1 operand.
1271         (OMP_RETURN_EXPR): Define.
1272
1273         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
1274         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
1275         * tree-iterator.c (alloc_stmt_list): Assert that we are not
1276         creating a circular free list.
1277         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
1278
1279         * tree-flow.h (move_sese_region_to_fn): Declare.
1280         (record_vars_into): Declare.
1281         * tree-cfg.c (make_omp_sections_edges): New.
1282         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
1283         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
1284         OMP_SECTIONS and OMP_SECTION.
1285         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
1286         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
1287         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
1288         (gather_blocks_in_sese_region): New.
1289         (struct move_stmt_d): Declare.
1290         (move_stmt_r): New.
1291         (move_block_to_fn): New.
1292         (move_sese_region_to_fn): New.
1293
1294         * passes.c (init_optimization_passes): Schedule
1295         pass_expand_omp after pass_init_datastructures.
1296
1297         * tree-ssa-operands.c (get_expr_operands): Handle
1298         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
1299         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
1300
1301 2006-01-19  Jeff Law  <law@redhat.com>
1302
1303         * tree-vrp.c (extract_range_from_assert): Refine the result range
1304         if the variable referenced by the ASSERT_EXPR has a range and
1305         either the tentative result range or the previous range is a
1306         VR_ANTI_RANGE.
1307
1308 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
1309
1310         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
1311
1312 2006-01-19  Jan Hubicka  <jh@suse.cz>
1313
1314         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
1315
1316 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
1317
1318         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
1319         (expand_compound_operation, expand_field_assignment): Fail if the
1320         bit lengths of an extract operation are out of range.
1321         (make_extraction): Compute wanted_inner_mode based on the position
1322         and length of the extraction.  Make it extraction_mode for non-constant
1323         positions, and do not modify offset in that case.  When generating a
1324         new MEM, use a mode that can hold the extraction while keeping correct
1325         alignment.  Remove code that supported MEMs wrapped by USEs.
1326         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
1327
1328 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
1329
1330         * config/s390/s390.md ("Y", "y"): New mode attribute.
1331         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
1332         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
1333         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
1334         "*addsi3_imm_cc", "*addsi3_carry1_cc",
1335         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
1336         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
1337         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
1338         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
1339         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
1340         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
1341         "addsi3", "subsi3"): Insn patterns removed.
1342         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
1343         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
1344         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
1345         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
1346         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
1347         "*sub<mode>3_cconly2"): New insn patterns.
1348         ("addsi3", "subsi3"): New expanders.
1349
1350 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
1351
1352         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
1353         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
1354         existing STMT_VINFO_VECTYPE if available.
1355         (vect_mark_relevant): Add special handling for stmts that are
1356         marked as STMT_VINFO_IN_PATTERN_P.
1357         (vect_analyze_loop): Call vect_pattern_recog.
1358         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
1359         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
1360         stmt_info.
1361         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
1362         (vect_recog_func_ptr): New function-pointer type.
1363         * tree-vect-patterns.c: New file.
1364         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
1365         (vect_recog_dot_prod_pattern, vect_pattern_recog):
1366         (vect_pattern_recog_1): New functions.
1367         (vect_pattern_recog_funcs): New array of function pointers.
1368
1369         * tree-vectorizer.h (ternary_op): New enum value.
1370         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
1371         declaration. Revised documentation. Removed redundant dump prints.
1372         Removed redundant argument. Added support for reduction patterns.
1373         (vectorizable_reduction): Added support for reduction patterns.
1374         (vect_transform_stmt): Added support for patterns.
1375
1376         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
1377         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
1378         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
1379         (expand_widen_pattern_expr): New function.
1380         (init_optabs): Initialize new optabs udot_prod_optab,
1381         sdot_prod_optab.
1382         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
1383         (sdot_prod_optab, udot_prod_optab): Define new optabs.
1384         (expand_widen_pattern_expr): New function declaration.
1385         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
1386         tree-codes.
1387         * tree-inline.c (estimate_num_insns_1): Added cases for new
1388         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
1389         * tree-pretty-print.c (dump_generic_node): Likewise.
1390         (op_prio): Likewise.
1391         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
1392         * tree-ssa-operands.c (get_expr_operands): Added case for
1393         DOT_PROD_EXPR.
1394         * tree-vect-patterns.c (widened_name_p): New function.
1395         (vect_recog_dot_prod_pattern): Added function implementation.
1396         * tree-vect-transform.c (get_initial_def_for_reduction): Added
1397         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
1398         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
1399         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
1400
1401         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
1402         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
1403         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
1404         (init_optabs): Initialize new optabs widen_ssum_optab,
1405         widen_usum_optab.
1406         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
1407         (widen_ssum_optab, widen_usum_optab): Define new optabs.
1408         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
1409         use instead of type of def.
1410         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
1411         function implementation.
1412         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
1413         widen_ssumv8hi): New.
1414
1415         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
1416         patterns.
1417
1418 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
1419
1420         PR c/25805
1421         * c-decl.c (add_flexible_array_elts_to_size): New function.
1422         (finish_decl): Use it.
1423
1424 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
1425
1426         * diagnostic.h: Include options.h.
1427         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
1428         dependancies for diagnostic.h.
1429         * Makefile.in (DIAGNOSTIC_H): Add options.h.
1430
1431 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
1432
1433         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
1434         (ssa_ro_call_cache_valid): Ditto.
1435         * tree-ssa-alias.c (sort_tags_by_id): New function.
1436         (init_transitive_clobber_worklist): Ditto.
1437         (add_to_worklist): Ditto.
1438         (mark_aliases_call_clobbered): Ditto.
1439         (compute_tag_properties): Ditto.
1440         (set_initial_properties): Ditto.
1441         (compute_call_clobbered): Ditto.
1442         (compute_may_aliases):  Call compute_call_clobbered and grouping.
1443         (compute_flow_sensitive_aliasing): Remove clobbering related code.
1444         (compute_flow_insensitive_aliasing): Grouping now happens in our
1445         caller.
1446         (setup_pointers_and_addressables): Remove clobbering related code.
1447         (add_may_alias): Ditto.
1448         (replace_may_alias): Ditto.
1449         (get_nmt_for): Ditto.
1450         (create_global_var):
1451         (is_escape_site): Return an escape_type enumeration.
1452         * tree-flow-inline.h (is_call_clobbered):  Global var does not
1453         imply call clobbered.
1454         (mark_call_clobbered): Take a reason for marking this. Remove
1455         marking of globalness, and cache invalidation.
1456         (clear_call_clobbered): Remove cache invalidation code.
1457         * tree-dfa.c (dump_variable): If details is on, dump the reason
1458         for escaping.
1459         * tree-outof-ssa.c (create_temp): Copy escape mask from original
1460         variable.
1461         * tree-flow.h (struct ptr_info_def): Add escape mask member.
1462         (struct var_ann_d): Ditto.
1463         (enum escape_type): New.
1464         (mark_call_clobbered): Adjust prototype.
1465         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
1466         are never call clobbered.
1467         Record reasons for escaping.
1468         * tree-ssa-structalias.h (is_escape_site): Update prototype.
1469         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
1470         (ssa_ro_call_cache_valid): Ditto.
1471         (clobbered_v_may_defs): Ditto.
1472         (clobbered_vuses): Ditto.
1473         (ro_call_vuses): Ditto.
1474         (clobber_stats): New.
1475         (init_ssa_operands): Zero out clobber stats.
1476         (fini_ssa_operands): Print out clobber stats.
1477         (get_call_expr_operands): Pass callee fndecl to
1478         add_call_read_ops).
1479         (add_call_clobber_ops): Remove use of cache.
1480         Add use of PURE_CONST information.
1481         (add_call_read_ops): Remove use of cache.
1482         Add use of static not_read information.
1483
1484 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
1485
1486         Introduce TLS descriptors for i386 and x86_64.
1487         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
1488         (TARGET_ANY_GNU_TLS): New macro.
1489         (enum tls_dialect): Added TLS_DIALECT_GNU2.
1490         (struct machine_function): Add tls_descriptor_call_expanded_p.
1491         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
1492         (ix86_current_function_calls_tls_descriptor): Likewise.
1493         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
1494         (override_options): Introduce gnu2 tls dialect.
1495         (ix86_frame_pointer_required): Functions containing TLSCALLs are
1496         not leaves.
1497         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
1498         Likewise.
1499         (legitimize_tls_address): Adjust logic for GNU2 TLS.
1500         (ix86_init_machine_status): Initialize new field.
1501         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
1502         (ix86_tls_module_base): New.
1503         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
1504         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
1505         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
1506         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
1507         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
1508         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
1509         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
1510         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
1511         * config/i386/predicates.md (tls_modbase_operand): New.
1512         (tp_or_register_operand): New.
1513
1514 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
1515
1516         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
1517         (look_for_address_of): Ditto.
1518         (ipa_init): Walk the function decls.
1519         (static_execute): Don't set readonly on FUNCTION_DECL's.
1520
1521 2006-01-18  Roger Sayle  <roger@eyesopen.com>
1522
1523         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
1524         for shifts where the source and destination registers are different.
1525
1526 2006-01-18  Paul Brook  <paul@codesourcery.com>
1527
1528         Merge from csl-arm-branch.
1529         2005-03-14  Julian Brown  <julian@codesourcery.com>
1530         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
1531         (aeabi_llsl): Likewise.
1532         (ashrdi3): Likewise.
1533         (aeabi_lasr): Likewise.
1534         (lshrdi3): Likewise.
1535         (aeabi_llsr): Likewise.
1536         2005-03-10  Julian Brown  <julian@codesourcery.com>
1537         * config.gcc: Disable shared libgcc for SymbianOS.
1538         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
1539
1540 2006-01-18  DJ Delorie  <dj@redhat.com>
1541
1542         * c-pragma.c (handle_pragma_diagnostic): New.
1543         (init_pragma): Register it.
1544         * doc/extend.texi: Document it.
1545
1546         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
1547         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
1548         (diagnostic_context): Add classify_diagnostic[].
1549         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
1550         as errors if they're overridden to DK_WARNING.
1551         (diagnostic_initialize): Initialize classify_diagnostic[].
1552         (diagnostic_set_kind_override): New.
1553         (diagnostic_report_diagnostic): Check for kind changes.
1554         * opts.c (common_handle_option): Take lang_mask.  Update callers.
1555         Handle OPT_Werror_.
1556         * common.opt (Werror=): New.
1557         * doc/invoke.texi: Document -Werror=*
1558
1559 2006-01-18  Jeff Law  <law@redhat.com>
1560
1561         * tree-vrp.c (test_for_singularity): Correct test for new
1562         min limit.  Use operand_equal_p rather than pointer equality
1563         for testing if new min/max values are equal.
1564
1565         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
1566         using range information until after propagation and folding.
1567
1568 2006-01-18  Richard Henderson  <rth@redhat.com>
1569             Aldy Hernandez  <aldyh@redhat.com>
1570             Jakub Jelinek  <jakub@redhat.com>
1571             Diego Novillo  <dnovillo@redhat.com>
1572
1573         * omp-low.c: New file.
1574         * c-omp.c: New file.
1575
1576 2006-01-18  Richard Henderson  <rth@redhat.com>
1577             Jakub Jelinek  <jakub@redhat.com>
1578             Diego Novillo  <dnovillo@redhat.com>
1579
1580         * doc/invoke.texi: Document -fopenmp.
1581         * tree-dump.h (debug_function): Declare.
1582         * hooks.c (hook_bool_tree_bool_false): New function.
1583         (hook_tree_tree_null): Remove.
1584         (hook_tree_tree_tree_null): New.
1585         * hooks.h: Update to match.
1586         * tree-pretty-print.c (debug_tree_chain): New.
1587         (print_generic_expr): Handle TDF_CHAIN.
1588         (dump_generic_node): Handle BLOCK.
1589         Do not abort with incomplete SWITCH_EXPRs.
1590         Do not dump body of an OpenMP directive if TDF_SLIM is given.
1591         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
1592         print space after directive name.
1593         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
1594         Handle OMP_MASTER and OMP_ORDERED.
1595         Handle printing of OMP_BODY just in one place, goto
1596         dump_omp_body in the rest of OMP_* nodes that have
1597         OMP_BODY.
1598         Don't handle clause nodes here.  Update omp statements to
1599         use dump_omp_clauses.
1600         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
1601         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
1602         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
1603         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
1604         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
1605         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
1606         Adjust output for GOMP_PARALLEL.
1607         (dump_omp_clauses): New.
1608         (print_declaration): Dump DECL_VALUE_EXPR.
1609         (op_symbol_1): Split out of op_symbol.
1610         (dumping_stmts): Remove.  Update all users.
1611         * cgraph.c (cgraph_analyze_queue): New.
1612         (cgraph_add_new_function): New.
1613         * cgraph.h (cgraph_analyze_queue): Declare.
1614         (cgraph_add_new_function): Declare.
1615         (cgraph_lower_function): Remove.
1616         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
1617         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
1618         and TYPE_P nodes in its default clause.
1619         (empty_body_p): New.
1620         (tree_range_check_failed): New.
1621         (build5_stat): New.
1622         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
1623         OMP_CLAUSE_REDUCTION_MERGE,
1624         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
1625         OMP_CLAUSE_PRIVATE_DEBUG,
1626         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
1627         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
1628         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
1629         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
1630         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
1631         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
1632         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
1633         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
1634         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
1635         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
1636         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
1637         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
1638         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
1639         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
1640         (TREE_RANGE_CHECK): New.
1641         (empty_body_p): Declare.
1642         (enum omp_clause_default_kind): New.
1643         (build_string_literal): Declare.
1644         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
1645         (build5_stat, build5): Declare.
1646         * tree-pass.h (TDF_CHAIN): Define.
1647         * tree-pass.h (PROP_gimple_lomp): Define.
1648         (pass_lower_omp): Declare.
1649         * diagnostic.h (debug_tree_chain): Declare.
1650         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
1651         mode_for_size.
1652         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
1653         * builtins.c (build_string_literal): Make extern.
1654         * gcc.c (include_spec_function): New.
1655         (static_spec_functions): Add it.
1656         (main): Move load of libgomp.spec ...
1657         (LINK_COMMAND_SPEC): ... here.
1658         (link_gomp_spec): New.
1659         (static_specs): Include it.
1660         (LINK_COMMAND_SPEC): Add link_gomp.
1661         (GOMP_SELF_SPECS): New.
1662         (driver_self_specs): Include it.
1663         (switch_matches): Don't mark inline.
1664         (main): Load libgomp.spec.
1665         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
1666         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
1667         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
1668         * tree-gimple.h (enum omp_parallel): Declare.
1669         (determine_parallel_type): Declare.
1670         (omp_firstprivatize_variable): Declare.
1671         (omp_reduction_init): Declare.
1672         (diagnose_omp_structured_block_errors): Declare.
1673         (struct walk_stmt_info): Add want_return_expr.
1674         (struct walk_stmt_info): Add want_bind_expr, want_locations.
1675         (find_omp_clause): Declare.
1676         (insert_field_into_struct): Declare.
1677         (struct walk_stmt_info): Move from tree-nested.c
1678         (walk_stmts): Declare.
1679         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
1680         to 200505.
1681         * cgraphunit.c (cgraph_lower_function): Make static.
1682         (cgraph_finalize_pending_functions): New.
1683         (cgraph_finalize_function): Call it.
1684         (cgraph_finalize_compilation_unit): Likewise.
1685         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
1686         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
1687         (BT_FN_UINT_UINT): New.
1688         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
1689         DEF_FUNCTION_TYPE_VAR_4): Document.
1690         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
1691         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
1692         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
1693         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
1694         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
1695         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
1696         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
1697         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
1698         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
1699         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
1700         into separate files.
1701         (DEF_GOMP_BUILTIN): New.
1702         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
1703         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
1704         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
1705         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
1706         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
1707         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
1708         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
1709         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
1710         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
1711         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
1712         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
1713         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
1714         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
1715         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
1716         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
1717         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
1718         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
1719         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
1720         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
1721         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
1722         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
1723         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
1724         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
1725         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
1726         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
1727         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
1728         * sync-builtins.def: New file, moved from builtins.def.
1729         * omp-builtins.def: New file, moved from builtins.def.
1730         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
1731         * gimple-low.c (lower_function_body): Clear data.
1732         (lower_stmt): Do not handle COMPOUND_EXPR.
1733         Remove call to print_node_brief.
1734         * c-tree.h (c_finish_omp_clauses): New prototype.
1735         (C_DECL_THREADPRIVATE_P): Define.
1736         (lookup_name_no_remap, c_omp_remap_private): Remove
1737         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
1738         (check_for_loop_decls): Update decl.
1739         (lookup_name_no_remap, c_omp_remap_private): Declare.
1740         (build_indirect_ref, build_modify_expr, pushdecl,
1741         pushdecl_top_level): Move to c-common.h.
1742         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
1743         before the switch, but just in the 2 places that need it.
1744         * c-decl.c (diagnose_mismatched_decls): Do not check for
1745         mismatched thread-local attributes when OLDDECL is marked
1746         threadprivate and NEWDECL has no thread-local attributes.
1747         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
1748         (c_gimple_diagnostics_recursively): Rename from
1749         c_warn_unused_result_recursively.  Invoke
1750         diagnose_omp_structured_block_errors.
1751         (check_for_loop_decls): Return a singular decl found.
1752         * langhooks.c (lhd_omp_predetermined_sharing): Return
1753         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
1754         (lhd_omp_firstprivatize_type_sizes): New.
1755         (lhd_omp_assignment): New.
1756         (lhd_omp_predetermined_sharing): New.
1757         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
1758         (struct lang_hooks_for_types): Add
1759         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
1760         omp_predetermined_sharing, omp_disregard_value_expr,
1761         omp_private_debug_clause, omp_clause_default_ctor,
1762         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
1763         (c_finish_omp_clauses): New.
1764         (c_finish_bc_stmt): Diagnose break within omp for.
1765         (c_begin_omp_parallel, c_finish_omp_parallel): New.
1766         (build_unary_op): Return error_mark after reporting
1767         a readonly_error.
1768         (build_modify_expr): Likewise.
1769         * gimplify.c: Include optabs.h and pointer-set.h.
1770         (enum gimplify_omp_var_data): Declare.
1771         (struct gimplify_omp_ctx): Declare.
1772         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
1773         and combined_ctxp.
1774         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
1775         (push_gimplify_context, pop_gimplify_context): Allow nesting.
1776         (splay_tree_compare_decl_uid): New.
1777         (new_omp_context): New.
1778         (delete_omp_context): New.
1779         (gimple_add_tmp_var): Call omp_add_variable.
1780         (gimplify_bind_expr): Likewise.
1781         (gimplify_var_or_parm_decl): If omp_notice_variable returned
1782         true, disregard DECL_VALUE_EXPR on the decl if any.
1783         (gimplify_expr_in_ctx): New.
1784         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
1785         omp_add_variable, omp_notice_variable, omp_is_private
1786         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
1787         gimplify_adjust_omp_clauses, gimplify_omp_parallel
1788         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
1789         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
1790         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
1791         gimplify_omp_atomic): New.
1792         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
1793         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
1794         OMP_CRITICAL and OMP_ATOMIC.
1795         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
1796         * c-pragma.h (enum pragma_kind): Add
1797         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
1798         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
1799         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
1800         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
1801         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
1802         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
1803         PRAGMA_OMP_THREADPRIVATE.
1804         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
1805         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
1806         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
1807         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
1808         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
1809         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
1810         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
1811         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
1812         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
1813         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
1814         * tree-ssa-dce.c (find_control_dependence): Do not assume that
1815         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
1816         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
1817         OpenMP directives.
1818         (struct nesting_info): Add field_map,
1819         suppress_expansion, debug_var_chain.
1820         (create_nesting_tree): Initialize them.
1821         (lookup_field_for_decl): Use field_map.
1822         (get_nonlocal_debug_decl, get_local_debug_decl): New.
1823         (convert_local_omp_clauses): New.
1824         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
1825         (walk_body): Split out of walk_function.
1826         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
1827         (convert_nonlocal_reference): Handle omp statements.
1828         (convert_local_reference): Likewise.
1829         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
1830         (unnest_nesting_tree): New.
1831         (lower_nested_functions): Call it.
1832         (insert_field_into_struct): Make extern.
1833         (struct walk_stmt_info): Move to tree-gimple.h.
1834         (walk_stmts): Make extern.
1835         * omp-builtins.def: New file.
1836         * tree-iterator.c (expr_only): Clarify comment.
1837         * c-common.h (pushdecl_top_level, pushdecl,
1838         build_modify_expr, build_indirect_ref,
1839         c_finish_omp_master, c_finish_omp_critical,
1840         c_finish_omp_ordered, c_finish_omp_barrier,
1841         c_finish_omp_atomic, c_finish_omp_flush,
1842         c_finish_omp_for, c_split_parallel_clauses,
1843         omp_clause_default_kind, c_omp_sharing_predetermined,
1844         c_omp_remap_decl): Declare.
1845         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
1846         (OBJS-common): Add omp-low.o.
1847         (c-omp.o, omp-low.o): Add.
1848         (gimplify.o): Add dependency on $(OPTABS_H).
1849         (GTFILES): Add omp-low.c.
1850         (gt-stringpool.h): Add.
1851         * tree-cfg.c (set_bb_for_stmt): Do not update the
1852         block-to-labels map if we are currently expanding to RTL.
1853         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
1854         checks.
1855         Handle IDENTIFIER_NODE.
1856         (tree_verify_flow_info): Do not ICE when emitting error
1857         messages about invalid labels.
1858         (dump_function_to_file): Reset CFUN before emitting the body
1859         of the function.
1860         (debug_function): New.
1861         * passes.c (init_optimization_passes): Schedule
1862         pass_lower_omp.
1863         * langhooks-def.h (lhd_omp_predetermined_sharing,
1864         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
1865         Declare.
1866         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
1867         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
1868         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
1869         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
1870         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
1871         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
1872         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
1873         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
1874         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
1875         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
1876         (LANG_HOOK_DECLS): Use them.
1877
1878 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
1879             Richard Henderson  <rth@redhat.com>
1880             Jakub Jelinek  <jakub@redhat.com>
1881             Diego Novillo  <dnovillo@redhat.com>
1882
1883         * c-parser.c (pragma_omp_clause): Define.
1884         (c_parser_declaration_or_fndef): Document OpenMP syntax.
1885         (c_parser_compound_statement): Likewise.
1886         (c_parser_statement): Likewise.
1887         (c_parser_pragma): Handle omp pragmas.
1888         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
1889         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
1890         (c_parser_omp_clause_name, check_no_duplicate_clause,
1891         c_parser_omp_variable_list,
1892         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
1893         c_parser_omp_clause_copyprivate,
1894         c_parser_omp_clause_default,
1895         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
1896         c_parser_omp_clause_lastprivate,
1897         c_parser_omp_clause_nowait,
1898         c_parser_omp_clause_num_threads,
1899         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
1900         c_parser_omp_clause_reduction,
1901         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
1902         c_parser_omp_all_clauses, c_parser_omp_structured_block,
1903         c_parser_omp_atomic, c_parser_omp_barrier,
1904         c_parser_omp_critical, c_parser_omp_flush,
1905         c_parser_omp_for_loop, c_parser_omp_for,
1906         c_parser_omp_master, c_parser_omp_ordered,
1907         c_parser_omp_sections_scope, c_parser_omp_sections,
1908         c_parser_omp_parallel, c_parser_omp_single,
1909         c_parser_omp_construct, c_parser_omp_threadprivate): New.
1910         * c-pragma.c (init_pragma): Do omp pragma registration here.
1911         * c.opt (fopenmp): New flag.
1912
1913 2006-01-18  Eric Christopher  <echristo@apple.com>
1914
1915         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
1916         * config/darwin.h (GOMP_SELF_SPECS): Define.
1917
1918 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
1919
1920         * rtl.h: Remove the prototype for reg_alloc.
1921
1922 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1923
1924         PR target/25731
1925         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
1926         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
1927         sjlj and dwarf2 exception handling.
1928         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
1929         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
1930         * pa/pa.c (function_value): Treat complex and vector types as
1931         aggregates.
1932         (function_arg): Likewise.  Only pass scalar floats in the floating
1933         point argument registers.
1934         * pa/t-slibgcc-dwarf-ver: New file.
1935         * pa/t-slibgcc-sjlj-ver: New file.
1936         * pa/t-slibgcc-elf-ver: Delete file.
1937
1938 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
1939
1940         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
1941         unlikely_test_section_p test.
1942
1943 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
1944
1945         * mode-switching.c (optimize_mode_switching): Make it static.
1946         * basic-block.h: Remove the prototype for
1947         optimize_mode_switching.
1948
1949         * modulo-sched.c (sms_schedule): Make it static.
1950         * rtl.h: Remove the prototype for sms_schedule.
1951
1952         * postreload-gcse.c (gcse_after_reload_main): Make it static.
1953         * rtl.h: Remove the prototype for gcse_after_reload_main.
1954
1955         * reg-stack.c (reg_to_stack): Make it static.
1956         * rtl.h: Remove the prototype for reg_to_stack.
1957
1958         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
1959         Make them static.
1960         * rtl.h: Remove the prototypes for regrename_optimize and
1961         copyprop_hardreg_forward.
1962
1963 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
1964
1965         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
1966         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
1967         Test against the appropriate null constant for the mode.
1968         If 'fixup_overlap' is true, swap the operands if they overlap.
1969         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
1970         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
1971         alpha_split_tmode_pair and adjust for above change.
1972         * config/alpha/alpha.md (movtf_internal): Adjust call to
1973         alpha_split_tfmode_pair and rely on it to swap the operands.
1974         (movti_internal): New insn and post-reload splitter.
1975         (movti): New expander.
1976
1977 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
1978
1979         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
1980         operands.
1981
1982 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
1983
1984         * rtlanal.c (global_reg_mentioned_p_1,
1985         global_reg_mentioned_p): Remove.
1986         * rtl.h: Remove the prototype for global_reg_mentioned_p.
1987
1988         * flow.c (initialize_uninitialized_subregs): Make it static.
1989         * rtl.h: Remove the prototype for
1990         initialize_uninitialized_subregs.
1991
1992         * function.c (instantiate_virtual_regs): Make it static.
1993         * function.h: Remove the prototype for
1994         instantiate_virtual_regs.
1995
1996         * regmove.c (regmove_optimize, combine_stack_adjustments):
1997         Make them static.
1998         * rtl.h: Remove the prototypes for regmove_optimize and
1999         combine_stack_adjustments.
2000
2001 2006-01-17  Roger Sayle  <roger@eyesopen.com>
2002
2003         * config/i386/i386.c (COSTS_N_BYTES): New macro.
2004         (size_cost): Encode costs in bytes so that a reg-reg addition is
2005         equivalent to COSTS_N_INSNS(1).
2006         (override_options): Use the size_cost.branch_cost as the default
2007         ix86_branch_cost when optimizing for size.
2008
2009 2006-01-18  Ben Elliston  <bje@au.ibm.com>
2010
2011         * Makefile.in (D32PBIT_FUNCS): New.
2012         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
2013         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
2014         D64PBIT_FUNCS and D128PBIT_FUNCS.
2015         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
2016         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
2017         D128PBIT are set.
2018         (decnumber_dep): Define.
2019         * doc/libgcc.texi (Decimal float library routines): New node.
2020         * config/dfp-bit.h, config/dfp-bit.c: New files.
2021
2022 2006-01-18  Ben Elliston  <bje@au.ibm.com>
2023
2024         * expr.c (emit_move_change_mode): Always adjust addresses, not
2025         just during reload.  Copy replacements only during reload.
2026         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
2027         emit_move_via_integer.
2028
2029 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
2030
2031         * Makefile.in (check-%, check-consistency): Use $${srcdir}
2032         instead of $(srcdir) and ${srcdir}.
2033
2034 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
2035
2036         PR target/592
2037         PR middle-end/11135
2038         * arm.h (struct machine_function): Add pic_reg.
2039         * arm.c (arm_pic_register): Make unsigned.
2040         (arm_override_options): Only set arm_pic_register if
2041         TARGET_SINGLE_PIC_BASE.
2042         (use_return_insn): Only test for a pic register if it is fixed.
2043         (arm_compute_save_reg0_reg12_mask): Likewise.
2044         (thumb_compute_save_reg_mask): Likewise.
2045         (legitimate_pic_operand): Factor out some known invariants.
2046         (legitimize_pic_address): If we don't have a fixed pic register,
2047         then set up a pseudo in the function entry sequence.  Handle the
2048         pic base being in a pseudo.
2049         (arm_load_pic_register): Handle the pic register being in a pseudo.
2050         (arm_expand_prologue): Only set up the pic register if it is fixed.
2051         (thumb_expand_prologue): Likewise.
2052         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
2053         (pic_load_addr_based_insn): Likewise.
2054         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
2055         fixed.
2056
2057 2006-01-18  Ben Elliston  <bje@au.ibm.com>
2058
2059         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
2060         decimal float modes for all floating point registers.
2061
2062         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
2063         match_code "mem" with match_test "macho_lo_sum_memory_operand".
2064
2065 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
2066
2067         PR c/25682
2068         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
2069         even when the pointer is not NULL.
2070
2071 2006-01-16  Ian Lance Taylor  <ian@airs.com>
2072
2073         * common.opt (ftoplevel-reorder): New option.
2074         * cgraph.c (cgraph_asm_nodes): New global variable.
2075         (cgraph_asm_last_node): New static variable.
2076         (cgraph_order): New global variable.
2077         (cgraph_create_node): Set new order field.
2078         (cgraph_varpool_node): Likewise.
2079         (decide_is_variable_needed): Return true if not
2080         flag_toplevel_reorder.
2081         (cgraph_add_asm_node): New function.
2082         * cgraph.h (struct cgraph_node): Add order field.
2083         (struct cgraph_varpool_node): Add order field.
2084         (struct cgraph_asm_node): Define.
2085         (cgraph_asm_nodes, cgraph_order): Declare.
2086         (cgraph_add_asm_node): Declare.
2087         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
2088         function.
2089         (cgraph_varpool_assemble_pending_decls): Call it.
2090         (cgraph_output_pending_asms): New static function.
2091         (cgraph_finalize_compilation_unit): Call it.
2092         (struct cgraph_order_sort): Define.
2093         (cgraph_output_in_order): New static function.
2094         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
2095         !flag_toplevel_reorder case.
2096         * c-parser.c: Include "cgraph.h".
2097         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
2098         assemble_asm.
2099         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
2100         than -fno-unit-at-a-time.
2101         * doc/invoke.texi (Option Summary): Mention
2102         -fno-toplevel-reorder.
2103         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
2104         -funit-at-a-time documentation.
2105
2106 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
2107             Kazu Hirata  <kazu@codesourcery.com>
2108
2109         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
2110
2111 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
2112
2113         * Makefile.in (FUNCTION_H): New.  Use it instead of
2114         function.h throughout the file.
2115         * function.h: Include tree.h.
2116
2117 2006-01-17  Ben Elliston  <bje@au.ibm.com>
2118
2119         * recog.c: Separate some functions with whitespace.
2120
2121 2006-01-16  Richard Henderson  <rth@redhat.com>
2122
2123         Merge from gomp branch:
2124         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
2125         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
2126         and rename from struct inline_data.  Rename callee* to dst*;
2127         caller* to src*; add copy_decl hook, transform_call_graph_edges,
2128         transform_new_cfg, transform_return_to_modify, and
2129         transform_lang_insert_block flags; remove cloning_p, versioning_p,
2130         update_clones_p.
2131         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
2132         (copy_decl_for_dup): Remove.
2133         * tree-inline.c (struct inline_data): Move to header.
2134         (insert_decl_map): Export.
2135         (remap_decl): Update for member name changes.  Use copy_decl hook.
2136         Allow for replacement to be a non-decl.  Remove dead code.
2137         (remap_type_1): Check for existing mapping.
2138         (remap_type): Export.
2139         (remap_decls): Update for member name changes.
2140         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
2141         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
2142         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
2143         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
2144         (tree_function_versioning, build_duplicate_type): Likewise.
2145         (copy_body_r): Likewise.  Export.
2146         (copy_decl_for_dup): Split into ...
2147         (copy_decl_for_dup_finish, copy_decl_to_var,
2148         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
2149         (replace_ref_tree, inlining_p): Remove.
2150
2151 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2152
2153         * ifcvt.c (if_convert): Make it static.
2154         * rtl.h: Remove the prototype for if_convert.
2155
2156         * local-alloc.c (local_alloc): Make it static.
2157         * rtl.h: Remove the prototype for local_alloc.
2158
2159         * loop.c (loop_optimize): Make it static.
2160         * cfgloop.h: Remove the prototype for loop_optimize.
2161         * rtl.h: Likewise.
2162
2163 2006-01-16  DJ Delorie  <dj@redhat.com>
2164
2165         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
2166         mems.
2167
2168 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2169
2170         * pa.md: Disparage copies between general and floating-point registers
2171         in 32-bit move patterns.
2172
2173 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
2174
2175         PR testsuite/25741
2176         * Makefile.in (check-%): Depend on site.exp instead of
2177         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
2178         directories.
2179
2180 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2181
2182         * global.c (global_alloc): Make it static.
2183         * rtl.h: Remove the prototype for global_alloc.
2184
2185 2006-01-16  Richard Guenther  <rguenther@suse.de>
2186
2187         * tree-ssa-alias.c (struct used_part): Add write_only field.
2188         (get_or_create_used_part_for): Initialize it to true.
2189         (create_overlap_variables_for): Don't create structure variables
2190         for structures that only are written to.
2191         (find_used_portions): Handle MODIFY_EXPR to track whether a
2192         structure is only written to.
2193
2194 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2195
2196         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
2197         static.
2198         * basic-block.h: Remove the prototype for
2199         partition_hot_cold_basic_blocks.
2200
2201 2006-01-16  Rafael Ãƒvila de Espíndola <rafael.espindola@gmail.com>
2202
2203         * cppspec.c (lang_specific_spec_functions): Remove.
2204         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
2205         * gcc.h (lang_specific_spec_functions): Remove.
2206         * gccspec.c (lang_specific_spec_functions): Remove.
2207
2208 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
2209
2210         * combine.c (record_value_for_reg): Invalidate registers
2211         if INSN is null.
2212         (record_dead_and_set_regs_1): Likewise, by passing them to
2213         record_value_for_reg.
2214         (record_dead_and_set_regs): Invalidate stores made by a
2215         call.  We do not combine across a call, but we still
2216         relied on equivalences.
2217
2218 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
2219
2220         * tree-vrp.c (extract_range_from_binary_expr): Cope with
2221         vrp_int_const_binop returning non-constant nodes.
2222
2223 2006-01-16  Paul Brook  <paul@codesourcery.com>
2224
2225         * config/m68k/m68k.c (output_move_const_into_data_reg):
2226         Output correct mnemonic for mvz and mvs.
2227
2228 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
2229
2230         * rtl-factoring.c: Add sequence abstraction algorithm.
2231         * cfgcleanup.c (outgoing_edges_match): Extra checks.
2232         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
2233         ABNORMAL edges.
2234         (block_has_preserve_label): New function.
2235         * common.opt: Register new pass.
2236         * Makefile.in: Ditto.
2237         * passes.c: Ditto.
2238         * timevar.def: Ditto.
2239         * tree-pass.h: Ditto.
2240         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
2241         * rtl.h (make_jump_insn_raw): Add forward decl.
2242         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
2243
2244 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
2245             Roger Sayle  <roger@eyesopen.com>
2246
2247         * fold-const.c (fold_minmax): New static function.
2248         (fold_binary) <MIN_EXPR>: Call it.
2249         <MAX_EXPR>: Likewise.
2250         * stor-layout.c (place_field): Use DECL_SIZE consistently
2251         in the computation of the new record size.
2252
2253 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2254
2255         * cse.c (cse_condition_code_reg): Make it static.
2256         * rtl.h: Remove the prototype for cse_condition_code_reg.
2257
2258         * combine.c (combine_instructions): Make it static.
2259         * rtl.h: Remove the prototype for combine_instructions.
2260
2261 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2262
2263         PR target/25168
2264         * tree.c (get_file_function_name_long): Concatenate the first global
2265         object name with a string derived from the input filename of the object
2266         for type "F".
2267
2268 2006-01-16  Ben Elliston  <bje@au.ibm.com>
2269
2270         * config/i386/winnt-stubs.c: Update FSF address.
2271         * config/xtensa/ieee754-df.S: Ditto.
2272         * config/xtensa/ieee754-sf.S: Ditto.
2273
2274 2006-01-14  Ian Lance Taylor  <ian@airs.com>
2275
2276         * ifcvt.c (noce_init_if_info): New static function, broken out of
2277         noce_process_if_block.
2278         (noce_process_if_block): Call noce_init_if_info.
2279         (check_cond_move_block): New static function.
2280         (cond_move_process_if_block): New static function.
2281         (process_if_block): Call cond_move_process_if_block.
2282
2283 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
2284
2285         * cselib.c (hash_table): Rename to cselib_hash_table.
2286         (cselib_clear_table, discard_useless_values,
2287         remove_useless_values, cselib_lookup_mem, cselib_lookup,
2288         cselib_init, cselib_finish): Adjust uses of hash_table.
2289
2290 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
2291
2292         PR tree-optimization/25485
2293         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
2294         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
2295         is known to be false and true, respectively.
2296
2297 2006-01-14  Richard Guenther  <rguenther@suse.de>
2298
2299         PR tree-optimization/22548
2300         PR tree-optimization/22555
2301         PR tree-optimization/22501
2302         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
2303         * params.def (salias-max-array-elements): New parameter.
2304         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
2305         * doc/invoke.texi (salias-max-array-elements): Document.
2306         * tree-flow-inline.h (var_can_have_subvars): We also handle
2307         arrays now.
2308         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
2309         COMPONENT_REF.
2310         * tree-ssa-structalias.c (params.h): Include.
2311         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
2312         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
2313         (get_constraint_for): For ADDR_EXPR operating on something
2314         containing an ARRAY_REF, add all subvars to the solution.
2315         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
2316         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
2317         for creating MUST_DEFs.
2318         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
2319
2320 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
2321
2322         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
2323         functions.
2324         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
2325         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
2326         number_of_iterations_le): New functions.
2327         (number_of_iterations_special): Removed.
2328         (number_of_iterations_exit): Do not use number_of_iterations_special.
2329         * tree.c (unsigned_type_for): Always return integer type.
2330
2331 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
2332         Richard Guenther  <rguenther@suse.de>
2333
2334         PR rtl-optimization/24257
2335         * gcse.c (find_moveable_store): Only consider a store movable
2336         when the SET_SRC of the insn can be assigned to a register.
2337
2338 2006-01-14  Ian Lance Taylor  <ian@airs.com>
2339
2340         * tree.c (tree_not_class_check_failed): New function.
2341         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
2342         (tree_not_class_check_failed): Declare.
2343
2344 2006-01-13  Ian Lance Taylor  <ian@airs.com>
2345
2346         * reload1.c (do_output_reload): Add assertion rejecting a
2347         CALL_INSN.
2348
2349 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
2350
2351         * combine.c (struct reg_stat): Add new fields truncation_label and
2352         truncated_to_mode.
2353         (record_value_for_reg): Reset truncated_to_mode.
2354         (record_truncated_value): New function.
2355         (check_promoted_subreg): Call it.  Rename to check_conversions.
2356         (combine_instructions): Rename check_promoted_subreg to
2357         check_conversions.
2358         (reg_truncated_to_mode): New function.
2359         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
2360         (gen_lowpart_or_truncate): New function.
2361         (force_to_mode): Use it instead of gen_lowpart.
2362
2363 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
2364
2365         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
2366         VAR is a tag, not its type tag.
2367
2368 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
2369
2370         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
2371         alternatives to match style of other entries.
2372         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
2373
2374 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
2375
2376         PR tree-optimization/25771
2377         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
2378         SSA_NAMES.
2379
2380 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
2381
2382         PR tree-opt/24365
2383         * tree-inline.c (declare_return_variable): If the return variable
2384         was marked as a non gimple complex, set the return slot variable
2385         to be a non gimple comple variable.
2386
2387 2006-01-13  Richard Guenther  <rguenther@suse.de>
2388
2389         * builtins.c (expand_builtin_sincos): New function.
2390         (expand_builtin_mathfn_3): Remove dead code, sin and cos
2391         do not set errno.
2392         (expand_builtin): Expand sincos using expand_builtin_sincos.
2393
2394 2006-01-12  DJ Delorie  <dj@redhat.com>
2395
2396         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
2397         shift counts, separate SI shifts for m32c vs m16c, pass shift type
2398         so that constant shifts can be split.
2399         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
2400         (m32c_valid_pointer_mode): Make static.
2401         (shift_gen_func_for): New.
2402         (m32c_prepare_shift): Use it.  Split large const shifts into
2403         multiple shifts.
2404         * config/m32c/predicates.md (shiftcount_operand): Allow more
2405         general operands.
2406         (longshiftcount_operand): New.
2407         * doc/md.texi (Machine Constraints): Document In6.
2408
2409 2006-01-13  Ben Elliston  <bje@au.ibm.com>
2410
2411         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
2412         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
2413         documentation.
2414
2415 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
2416
2417         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
2418         to try to avoid clobbering pieces of structures when we know
2419         something about the whole structure.
2420         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
2421
2422 2006-01-13  Ben Elliston  <bje@au.ibm.com>
2423
2424         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
2425         return in memory, as this is no limitation is no longer present.
2426
2427 2006-01-12  DJ Delorie  <dj@redhat.com>
2428
2429         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
2430         mova with fb, and for fb+0 -> An.
2431
2432         * config/m32c/mov.md (peephole2): Fix enabling logic.
2433
2434         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
2435         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
2436         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
2437         FINI_ARRAY_SECTION_ASM_OP): Define.
2438
2439         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
2440         variable.
2441         (m32c_legitimize_reload_address): New logic to reload FB to An.
2442         (m32c_output_reg_push): Add newline.
2443         (m32c_output_reg_pop): Likewise.
2444
2445 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
2446
2447         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
2448
2449 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
2450
2451         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
2452
2453 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
2454
2455         * config/sh/predicates.md (sh_rep_vec): Add parallel to
2456         match_code.
2457
2458 2006-01-11  Ben Elliston  <bje@au.ibm.com>
2459
2460         * rtlanal.c (find_reg_note): Assert insn is not null.
2461
2462 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
2463
2464         * df-scan.c (df_hard_reg_init): Move declaration of i outside
2465         ifdef.
2466
2467 2006-01-11  Jeff Law  <law@redhat.com>
2468
2469         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
2470         hold edge pairs.
2471         (mark_threaded_blocks, register_jump_thread): New functions.
2472         (thread_through_all_blocks): Remove unwanted argument.  No
2473         longer rely on e->aux to communicate thread target info.
2474         Call mark_threaded_blocks.  Release the threaded_blocks
2475         bitmap and threaded_edges vector when complete.
2476         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
2477         (threaded_blocks): Remove.
2478         (tree_ssa_dominator_optimize): Remove initialization and
2479         finalization of threaded_blocks.  Simplify call to
2480         thread_through_all_blocks.
2481         (thread_across_edge): Call register_jump_thread rather than
2482         storing thread information into e->aux.
2483         (free_all_edge_infos): Simplify now that e->aux is no longer
2484         used to communicate with thread_through_all_blocks.
2485         * tree-flow.h (thread_through_all_blocks): Update prototype.
2486         (register_jump_thread): Prototype.
2487
2488 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
2489
2490         * df-core.c (df_compact_blocks, df_bb_replace): Use
2491         SET_BASIC_BLOCK instead of BASIC_BLOCK.
2492
2493 2006-01-11  Richard Guenther  <rguenther@suse.de>
2494
2495         PR tree-optimization/25734
2496         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
2497         stop propagation after successful propagation to the LHS.
2498
2499 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
2500
2501         * basic-block.h (control_flow_graph): Change the type of
2502         x_basic_block_info to VEC(basic_block,gc) *.
2503         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
2504         basic_block_info.
2505         (SET_BASIC_BLOCK): New.
2506         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
2507         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
2508         * cfgbuild.c (find_basic_blocks): Likewise.
2509         * cfglayout.c (fixup_reorder_chain): Likewise.
2510         * cfgrtl.c (create_basic_block_structure,
2511         rtl_create_basic_block): Likewise.
2512         * ifcvt.c (find_if_case_1): Likewise.
2513         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
2514         Likewise.
2515
2516 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
2517
2518         * Makefile.in: Removed rotted odf.c entry.
2519
2520 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
2521
2522         PR target/25706
2523         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
2524         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
2525         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
2526         output pattern modifier, not %e.
2527         * config/cris/cris.c (cris_op_str): Update comment about pattern
2528         modifier.
2529         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
2530         before falling through into...
2531         <case 'E'>: Redefined from old 'e' case.
2532
2533 2006-01-11  Jan Hubicka  <jh@suse.cz>
2534
2535         PR target/25042
2536         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
2537
2538 2006-01-11  Jan Hubicka  <jh@suse.cz>
2539
2540         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
2541         * i386.c (x86_decompose_lea): Kill.
2542         (ix86_rtx_costs): Kill.
2543
2544 2006-01-11  Jan Hubicka  <jh@suse.cz>
2545
2546         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
2547         * cgraph.h (cgraph_node): Add inline_decl.
2548         (cgraph_insert_node_to_hashtable): Declare.
2549         (save_inline_function_body): Declare.
2550         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
2551         clones.
2552         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
2553         (cgraph_function_versioning): Update call of tree_function_versioning.
2554         (save_inline_function_body): New function.
2555         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
2556         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
2557         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
2558         (cgraph_default_inline_p): Likewise.
2559         (cgraph_decide_inlining_incrementally): Likewise.
2560         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
2561         (copy_bb): Kill saving; do updating of clones.
2562         (copy_cfg_body): Kill saving.
2563         (initialize_inlined-parameters): Likewise.
2564         (expand_call_inline): Likewise.
2565         (save_body): Kill.
2566         (tree_function_versioning): New parameter "update_clones".
2567         (inlining_p): Kill saving.
2568         * tree-inline.h (tree_function_versioning): Update prototype.
2569         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
2570         saving.
2571
2572 2006-01-11  Ian Lance Taylor <ian@airs.com>
2573
2574         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
2575         Allow undoing set of machine mode.
2576         (do_SUBST): Use enums instead of is_int.
2577         (do_SUBST_MODE): New function.
2578         (SUBST_MODE): New macro.
2579         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
2580         reg and trying to replace reg_regno_rtx with a new register.
2581         (undo_all): Use new enums, handle undoing a PUT_MODE change.
2582         (simplify_set): Use SUBST_MODE.
2583         (distribute_notes): Remove code that tried to update reg notes
2584         for regno_reg_rtx changes.
2585
2586 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
2587
2588         PR tree-optimization/23109
2589         PR tree-optimization/23948
2590         PR tree-optimization/24123
2591
2592         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
2593         * tree-cfg.c (single_noncomplex_succ): New.
2594         * tree-flow.h (single_noncomplex_succ): Declare it.
2595         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
2596         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
2597         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
2598         insert_bb, register_division_in, insert_reciprocals,
2599         replace_reciprocal, free_bb): New.
2600         (execute_cse_reciprocals_1): Rewritten.
2601         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
2602         Do not commit any edge insertion.  Always compute dominators and
2603         create the allocation pool.
2604         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
2605         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
2606         * targhooks.c (default_min_divistions_for_recip_mul): New.
2607         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
2608         * passes.c (init_optimization_passes): Run recip after tree loop
2609         optimizations.
2610         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
2611
2612 2006-01-11  Danny Berlin <dberlin@dberlin.org>
2613             Kenneth Zadeck <zadeck@naturalbridge.com>
2614
2615         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
2616         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
2617         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
2618         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
2619         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
2620         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
2621         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
2622         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
2623         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
2624         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
2625         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
2626         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
2627         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
2628         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
2629         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
2630         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
2631         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
2632         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
2633         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
2634         DF_SCAN_POST_ALLOC): New macros.
2635         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
2636         df_free_bb_function, df_local_compute_function, df_init_function,
2637         df_dataflow_function, df_confluence_function_0,
2638         df_confluence_function_n, df_transfer_function,
2639         df_finalizer_function, df_free_function, df_dump_problem_function,
2640         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
2641         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
2642         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
2643         df_urec_bb_info, ) New types.
2644         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
2645         variables.
2646         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
2647         df_analyze_simple_change_some_blocks,
2648         df_analyze_simple_change_one_block, df_compact_blocks,
2649         df_bb_replace, df_bb_regno_last_use_find,
2650         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
2651         df_insn_regno_def_p, df_find_def, df_find_use,
2652         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
2653         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
2654         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
2655         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
2656         debug_df_chain, df_get_dependent_problem, df_chain_create,
2657         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
2658         df_grow_bb_info, df_chain_dump, df_print_bb_index,
2659         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
2660         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
2661         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
2662         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
2663         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
2664         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
2665         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
2666         df_ref_remove, df_insn_refs_delete, df_refs_delete,
2667         df_reorganize_refs, df_set_state, df_hard_reg_init,
2668         df_read_modify_subreg_p) New public functions.
2669         * df-core.c: The core dataflow solver and glue routines for rtl
2670         dataflow.
2671         (df_init, df_add_problem, df_set_blocks, df_finish,
2672         df_hybrid_search_forward, df_hybrid_search_backward,
2673         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
2674         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
2675         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
2676         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
2677         df_reg_defined, df_find_use, df_reg_used, df_dump,
2678         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
2679         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
2680         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
2681         debug_df_useno, reset_df_after_reload): New functions.
2682         * df-scan.c: The scanning fuctions, once in df.c, completely
2683         rewritten so that they now fully model the functionality of
2684         register usage at the backend.
2685         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
2686         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
2687         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
2688         df_grow_insn_info, df_rescan_blocks, df_ref_create,
2689         df_get_artificial_defs, df_get_artificial_uses,
2690         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
2691         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
2692         df_refs_delete, df_reorganize_refs, df_set_state,
2693         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
2694         df_def_record_1, df_defs_record, df_uses_record,
2695         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
2696         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
2697         df_record_exit_block_uses, df_hard_reg_init): New functions.
2698
2699         * df-problems.c: Seven concrete dataflow problems that use the
2700         scanning in df-scan.c and are solved by the engine in df-core.c.
2701         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
2702         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
2703         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
2704         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
2705         df_ru_free_bb_info, df_ru_alloc,
2706         df_ru_bb_local_compute_process_def,
2707         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
2708         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
2709         df_ru_transfer_function, df_ru_free, df_ru_dump,
2710         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
2711         df_rd_free_bb_info, df_rd_alloc,
2712         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
2713         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
2714         df_rd_transfer_function, df_rd_free, df_rd_dump,
2715         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
2716         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
2717         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
2718         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
2719         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
2720         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
2721         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
2722         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
2723         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
2724         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
2725         df_urec_mark_reg_change, df_urec_check_earlyclobber,
2726         df_urec_mark_reg_use_for_earlyclobber,
2727         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
2728         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
2729         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
2730         df_urec_dump, df_urec_add_problem, df_chain_alloc,
2731         df_chain_create_bb_process_use, df_chain_create_bb,
2732         df_chain_finalize, df_chain_free, df_chains_dump,
2733         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
2734         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
2735         df_reg_lifetime): New functions.
2736         * df.c: Deleted file.
2737         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
2738         consistent with new df api.
2739         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
2740         rest_of_handle_sms): Ditto.
2741         * web.c (unionfind_union, union_defs, entry_register, web_main):
2742         Ditto.
2743         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
2744         invariant_expr_equal_p, find_defs, check_dependencies,
2745         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
2746         free_inv_motion_data, move_loop_invariants): Ditto.
2747         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
2748         Update dependencies.
2749         (odf.c): Added defective entry that was deleted later in day.
2750         * sched-deps.c (sched_analyze_1): Ditto.
2751
2752 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
2753
2754         * tree-ssa-operands.c (get_expr_operands): Record addressable
2755         variables directly.  Do not call add_stmt_operands for CONST_DECLs
2756         and ARRAY_DECLs.
2757         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
2758         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
2759
2760 2006-01-11  Ben Elliston  <bje@au.ibm.com>
2761
2762         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
2763         function returns true in the positive case.
2764
2765 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2766
2767         PR target/20754
2768         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
2769         for SI, DI, SF and DF modes.  Add alternatives to copy between
2770         general and floating point registers to the 32-bit patterns.
2771         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
2772         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
2773         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
2774         generating 64-bit code.
2775         * config/pa/pa.c (output_move_double): Handle copies between general
2776         and floating registers.
2777
2778 2006-01-10  Stuart Hastings  <stuart@apple.com>
2779
2780         * config/i386/i386.md (set_got): Update.
2781         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
2782         (builtin_setjmp_receiver): Mach-O support.
2783         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
2784         (GOT_SYMBOL_NAME): Define.
2785         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
2786         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
2787         * config/i386/i386.c (override_options): Revise for Darwin.
2788         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
2789         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
2790         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
2791         * config/i386/i386-protos.h (output_set_got): Likewise.
2792         * config/darwin.c (machopic_legitimize_pic_address): Update
2793         regs_ever_live[].
2794
2795 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
2796
2797         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
2798         when MODE isn't BLKmode.
2799
2800 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
2801
2802         PR rtl-optimization/25367
2803         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
2804
2805 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
2806
2807         PR target/25718
2808         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
2809         for a negative bound.
2810
2811 2006-01-10  Richard Guenther  <rguenther@suse.de>
2812
2813         * tree-ssa-structalias.c (get_constraint_for_component_ref):
2814         Never override with anything constraint.
2815
2816 2006-01-10  Jan Beulich  <jbeulich@novell.com>
2817
2818         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
2819         256 bits when optimize_size.
2820
2821 2006-01-10  Jan Beulich  <jbeulich@novell.com>
2822
2823         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
2824         MASK_ALIGN_DOUBLE.
2825         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
2826         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
2827         arguments.
2828
2829 2006-01-10  Ben Elliston  <bje@au.ibm.com>
2830
2831         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
2832         float modes.
2833         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
2834         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
2835         (USE_FP_FOR_ARG): Reject decimal float modes.
2836         (function_arg_advance): Likewise.
2837         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
2838         (rs6000_handle_altivec_attribute): Do not permit decimal floating
2839         point types in AltiVec vectors.
2840         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
2841         (rs6000_libcall_value): Likewise.
2842
2843 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
2844
2845         * config/xtensa/ieee754-df.S: New file.
2846         * config/xtensa/ieee754-sf.S: New file.
2847         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
2848         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
2849         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
2850
2851 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
2852
2853         * config/sh/predicates.md (binary_float_operator,
2854         binary_logical_operator, commutative_float_operator,
2855         equality_comparison_operator, greater_comparison_operator,
2856         less_comparison_operator, logical_operator,
2857         noncommutative_float_operator, shift_operator,
2858         symbol_ref_operand, unary_float_operator): Remove redundant
2859         conditionals.
2860
2861 2006-01-09  Jeff Law  <law@redhat.com>
2862
2863         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
2864         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
2865         now unused arguments.  Callers updated.
2866         (eliminate_redundant_computations): Remove now unused arguments,
2867         callers updated.
2868         (local_fold): Remove, no longer used.
2869         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
2870         and moved to...
2871         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
2872         (simplify_cond): New function.
2873         (forward_propagate_into_cond): Call simplify_cond.
2874
2875 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
2876
2877         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
2878         (*vec_extractv2di_1_sse): New.
2879
2880 2006-01-09  Ben Elliston  <bje@au.ibm.com>
2881
2882         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
2883
2884 2006-01-08  Richard Guenther  <rguenther@suse.de>
2885
2886         * tree-ssa-structalias.c (get_constraint_for): Remove
2887         anyoffset argument.
2888         (get_constraint_for_component_ref): Likewise.
2889         (do_deref): Likewise.
2890         (get_constraint_for): Likewise.
2891         (do_structure_copy): Likewise.
2892         (handle_ptr_arith): Likewise.
2893         (find_func_aliases): Likewise.  Remove unused need_anyoffset
2894         variable.
2895
2896 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
2897             Kaz Kojima  <kkojima@gcc.gnu.org>
2898
2899         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
2900         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
2901         (EXTRA_CONSTRAINT_C16): Remove.
2902         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
2903         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
2904         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
2905         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
2906         constants of SHmedia.  Handle nested constant expressions of
2907         SHmedia correctly.
2908         (andcosts): Fix the costs for SHmedia constants.
2909         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
2910         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
2911         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
2912         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
2913         (movv4hi_i, movv2si_i): Likewise.
2914         (movsi_const): Adjust the second operand of ior so to match with
2915         the Csu constraint.
2916         (movdi_const, movdi_const_32bit): Likewise.
2917         (movdi_const_16bit+1): Don't sign-extend LOW.
2918         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
2919         step.
2920         (*double_shori): Fix the split condition.  Use GEN_INT instead
2921         of get_int_mode calls.  Mask lower 16-bit of the argument of
2922         the last GEN_INT.
2923         (sym2GOTPLT): Remove.
2924         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
2925         gen_rtx_UNSPEC.
2926         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
2927         instead of EXTRA_CONSTRAINT_C16.
2928
2929 2006-01-07  Ian Lance Taylor  <ian@airs.com>
2930             David Edelsohn  <edelsohn@gnu.org>
2931
2932         PR rtl-optimization/25662
2933         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
2934         for constant operands instead of simplify_gen_binary.
2935         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
2936         after trying simplify_binary_operation
2937
2938 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
2939
2940         * tree.c (iterative_hash_expr): Hash decls based on UID.
2941
2942 2006-01-06  Eric Christopher  <echristo@apple.com>
2943
2944         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
2945         (TARGET_UNWIND_EMIT): Fix spelling.
2946         * target.h (gcc_target): Add except_table_label.
2947         * except.c (output_function_exception_table): Use.
2948         * varasm.c (default_emit_except_table_label): New.
2949         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
2950         define.
2951         (asm_out): Add here.
2952         * output.h (default_emit_except_table_label): Prototype.
2953         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
2954         * config/darwin.c (darwin_emit_except_table_label): Define.
2955         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
2956
2957 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
2958
2959         PR tree-optimization/18527
2960         * tree-ssa-loop-niter.c (number_of_iterations_cond,
2961         number_of_iterations_special, number_of_iterations_exit):
2962         Move base and step of an iv to a single structure.  Add
2963         no_overflow flag, and use it in # of iterations analysis.
2964         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
2965         folded_casts argument.
2966         (simple_iv): Pass base and step in a structure.  Set no_overflow
2967         flag.
2968         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
2969         Evaluate expensiveness of computing # of iterations instead of
2970         the final expression.
2971         * tree-scalar-evolution.h (affine_iv): New structure.
2972         (simple_iv): Declaration changed.
2973         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
2974         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
2975         find_givs_in_stmt): Changed due to simple_iv change.
2976
2977 2006-01-06  Jeff Law  <law@redhat.com>
2978
2979         PR ada/24994
2980         * tree-cfg.c (bsi_replace): Rename final argument from
2981         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
2982         change (stmt -> orig_stmt).
2983         * tree-eh.c (verify_eh_throw_stmt_node): New function.
2984         (bsi_remove): Add new argument.  Remove EH information
2985         if requested.
2986         (verify_eh_throw_table_statements): New function.
2987         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
2988         updated.
2989         * tree-optimize.c (execute_free_cfg_annotations): Verify
2990         the EH throw statement table after removing annotations.
2991         * except.h (verify_eh_throw_table_statements): Prototype.
2992         * tree-flow.h (bsi_remove): Update prototype.
2993         * tree-vrp.c (remove_range_assertions): Add new argument to
2994         bsi_remove call.
2995         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
2996         * tree-complex.c (expand_complex_div_wide): Likewise.
2997         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
2998         * tree-tailcall.c (eliminate_tailcall): Likewise.
2999         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
3000         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
3001         * tree-nrv.c (tree_nrv): Likewise.
3002         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
3003         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
3004         (combine_blocks): Likewise.
3005         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
3006         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
3007         (cleanup_control_flow): Likewise.
3008         (remove_forwarder_block): Likewise.
3009         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
3010         * tree-sra.c (sra_replace): Likewise.
3011         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
3012         (forward_propagate_single_use_vars): Likewise.
3013         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
3014         * tree-inline.c (expand_call_inline): Likewise.
3015         * tree-vect-transform.c (vect_transform_loop): Likewise.
3016         * tree-outof-ssa.c (rewrite_trees): Likewise.
3017         * tree-cfg.c (make_goto_expr_edges): Likewise.
3018         (cleanup_dead_labels): Likewise.
3019         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
3020         (bsi_move_before, bsi_move_after): Likewise.
3021         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
3022         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
3023
3024 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
3025
3026         PR tree-opt/25528
3027         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
3028         and IMAGPART_EXPR.
3029         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
3030         on non gimple variables.  Also add checks at the top for decls and
3031         mtags.
3032         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
3033         complex types.
3034         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
3035         and IMAGPART_EXPR for creating MUST_DEFs.
3036         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
3037         and NAME_MEMORY_TAG separately from the DECLs.
3038
3039 2006-01-06  Richard Guenther  <rguenther@suse.de>
3040
3041         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
3042         annotation, if necessary.
3043         * tree-ssa-pre.c (create_expression_by_pieces): Remove
3044         redundant calls to update_stmt.
3045         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
3046         Likewise.
3047
3048 2006-01-05  Richard Henderson  <rth@redhat.com>
3049
3050         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
3051
3052 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
3053
3054         * c-typeck.c: Update copyright date.
3055
3056 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
3057
3058         * c-typeck.c (build_c_cast): Always warn when casting
3059         from a pointer to an integer of different size, even if
3060         the node was constant.
3061
3062 2006-01-05  Richard Guenther  <rguenther@suse.de>
3063
3064         PR tree-optimization/22555
3065         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
3066         if one structure field is an array.
3067         * tree-ssa-operands.c (get_expr_operands): Continue scanning
3068         operands even if we found a subvar, but ignore VOPs in this
3069         case.
3070         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
3071         for renaming.
3072         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
3073
3074 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
3075
3076         PR middle-end/24998
3077         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
3078
3079 2006-01-05  Richard Guenther  <rguenther@suse.de>
3080             Diego Novillo  <dnovillo@redhat.com>
3081
3082         * tree-pass.h (TODO_remove_unused_locals): Define.
3083         * gimple-low.c (expand_var_p, remove_useless_vars,
3084         pass_remove_useless_vars): Remove.  Update all users.
3085         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
3086         (remove_unused_locals): New function.
3087         * tree-flow.h (remove_unused_locals): Declare.
3088         * passes.c (execute_todo): Call remove_unused_locals if
3089         TODO_remove_unused_locals is set.
3090         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
3091         * tree-ssa-dce.c (pass_dce): Likewise.
3092         * tree-outof-ssa.c (pass_del_ssa): Likewise.
3093
3094 2006-01-05  Richard Guenther  <rguenther@suse.de>
3095
3096         * tree-flow.h (struct fieldoff): Decompose field to
3097         type, size and decl.
3098         * tree-ssa-alias.c (create_sft): Take type as parameter.
3099         (create_overlap_variables_for): Store type, size and decl
3100         in the fieldoff structure.
3101         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
3102         of struct fieldoff.
3103         (push_fields_onto_fieldstack): Likewise.
3104         (create_variable_info_for): Likewise.  Use offset for the
3105         SFT name if the decl is not available.
3106
3107 2006-01-04  Paul Brook  <paul@codesourcery.com>
3108
3109         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
3110
3111 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
3112
3113         * lambda-code.c (can_put_in_inner_loop): Relax
3114         restrictions.
3115         (can_put_after_inner_loop): New function.
3116         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
3117         (perfect_nestify): Change to make copies and modify uses.
3118
3119 2006-01-04  Richard Henderson  <rth@redhat.com>
3120
3121         Merge from gomp branch:
3122         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
3123         via integer constant.
3124         (pragma_lex): Remove.
3125         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
3126         rather than parsing it.
3127         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
3128         handle_pragma_extern_prefix): Add %< %> quotes.
3129         (registered_pragmas): New.
3130         (c_register_pragma_1): New.
3131         (c_register_pragma): Use it.
3132         (c_register_pragma_with_expansion): Likewise.
3133         (c_invoke_pragma_handler): New.
3134         (init_pragma): Use cpp_register_deferred_pragma directly for
3135         pch_preprocess.
3136         * c-pragma.h (enum pragma_kind): New.
3137         (pragma_handler): New.
3138         (c_invoke_pragma_handler): Declare.
3139         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
3140         CPP_PRAGMA_EOL.
3141         * c-common.h (c_common_pch_pragma): Update decl.
3142         * Makefile.in (c-parser.o): Update dependencies.
3143         (GTFILES): Add c-pragma.h.
3144         * c-parser.c (struct c_token): Add pragma_kind.
3145         (struct c_parser): Add in_pragma.
3146         (c_lex_one_token): Always initialize keyword and pragma_kind.
3147         Extract data for CPP_PRAGMA.
3148         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
3149         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
3150         Don't allow CPP_PRAGMA_EOL if in_pragma.
3151         (c_parser_consume_pragma): New.
3152         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
3153         (c_parser_skip_to_end_of_parameter): Likewise.
3154         (c_parser_skip_to_end_of_block_or_statement): Likewise.
3155         (c_parser_skip_to_pragma_eol): New.
3156         (c_parser_external_declaration): Handle CPP_PRAGMA.
3157         (c_parser_compound_statement_nostart): Likewise.
3158         (c_parser_statement_after_labels): Likewise.
3159         (c_parser_pragma): New.
3160         (pragma_lex): Likewise.
3161         (c_parser_pragma_pch_preprocess): New.
3162         (c_parser_new): Merge into ...
3163         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
3164
3165 2006-01-04  Jeff Law  <law@redhat.com>
3166
3167         PR ada/24994
3168         * tree-cfg.c (bsi_replace): Remove the original statement
3169         from the EH throw statement table.
3170
3171 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
3172
3173         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
3174         make the prototype extern "C" and add throw ().
3175
3176         PR target/25554
3177         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
3178         and pos non-negative and pos + len <= 32.
3179         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
3180         drop pos + len < HOST_BITS_PER_WIDE_INT test.
3181         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
3182
3183         PR c/25559
3184         * c-common.c (handle_vector_size_attribute): Reject zero vector size
3185         as well as sizes not multiple of component size.
3186
3187         PR debug/25562
3188         * function.c (instantiate_expr): New function.
3189         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
3190         walk its DECL_VALUE_EXPR with instantiate_expr.
3191
3192         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
3193         DW_OP_deref{,_size} if address isn't going to be added.
3194
3195 2006-01-04  Ben Elliston  <bje@au.ibm.com>
3196
3197         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
3198         * config/fp-bit.c: Likewise.
3199
3200 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
3201
3202         * dominance.c: Add comment about why we use DFS numbering
3203         of dominance tree.
3204
3205 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
3206             Richard Henderson  <rth@redhat.com>
3207
3208         Merge from gomp-branch:
3209         * varasm.c (assemble_variable): Handle thread-local COMMON data.
3210         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
3211
3212 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
3213
3214         PR rtl-optimization/25578
3215         * combine.c (combine_simplify_rtx, force_to_mode): Don't
3216         pass a parameter to simplify_shift_const if changing ASHIFTRT
3217         to LSHIFTRT.
3218
3219 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
3220
3221         * builtins.c (get_builtin_sync_mem): New function.
3222         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
3223         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
3224         Call get_builtin_sync_mem to generate mem rtx.
3225
3226 2006-01-03  Richard Guenther  <rguenther@suse.de>
3227
3228         PR c/25183
3229         * stmt.c (add_case_node): Make sure to clear overflow flags
3230         from ranges.
3231
3232 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
3233
3234         Merge from gomp-branch.
3235         * config/sparc/sync.md: New file.
3236         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
3237         UNSPECV_LDSTUB): New constants.
3238         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
3239         * config/sparc/predicates.md (memory_reg_operand): New predicate.
3240         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
3241         prototype.
3242
3243 2006-01-03  Roger Sayle  <roger@eyesopen.com>
3244
3245         * combine.c (reg_subword_p): New predicate to test whether the
3246         destination of a set refers to a subword/piece of a register.
3247         (try_combine): Generalize the code to merge the setting of a
3248         pseudo to a constant followed by a set of a subword of that
3249         register to a constant.
3250
3251 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
3252
3253         * basic-block.h (control_flow_graph): Change the type of
3254         x_label_to_block_map to VEC(basic_block,gc) *.
3255         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
3256         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
3257
3258         * tree-ssa-propagate.c (cfg_blocks): Change the type to
3259         VEC(basic_block,heap) *.
3260         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
3261         ssa_prop_fini): Adjust the uses of cfg_blocks.
3262
3263 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
3264
3265         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
3266         COMPONENT_REFs.
3267         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
3268         hashing trees instead of a pointer hash.
3269         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
3270         compare for MEM_EXPR.
3271
3272         PR rtl-optimization/25130
3273         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
3274         when comparing MEMs for GCSE
3275
3276 2006-01-03  Ben Elliston  <bje@au.ibm.com>
3277
3278         * targhooks.h (default_decimal_float_supported_p): Declare.
3279         * targhooks.c (default_decimal_float_supported_p): Define.
3280         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
3281         `default_decimal_float_supported_p'.
3282         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
3283
3284 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
3285
3286         * combine.c (apply_distributive_law <SUBREG>): Check
3287         TRULY_NOOP_TRUNCATION.
3288
3289 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
3290
3291         * dwarf2out.c (have_switched_text_section): Delete.
3292         (have_multiple_function_sections): New.
3293         (have_location_lists): Make 'bool'.
3294         (add_AT_loc_list): Use 'true' not '1'.
3295         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
3296         (output_loc_list): Use have_multiple_function_sections.
3297         (output_ranges): Likewise.
3298         (dwarf2out_begin_function): Set have_multiple_function_sections if
3299         necessary.
3300         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
3301         Check function_section rather than DECL_SECTION_NAME.
3302         (dwarf2out_finish): Use have_multiple_function_sections.
3303         Don't clear have_location_lists.
3304
3305 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
3306             Jan Hubicka  <jh@suse.cz>
3307
3308         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
3309         case of conditional jump jumping to the next instruction.
3310         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
3311         cases of conditional jump jumping to the next instruction.
3312
3313 2006-01-02  Jan Hubicka  <jh@suse.cz>
3314
3315         * i386.c (*_cost): Add COSTS_N_INSNS.
3316         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
3317
3318 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
3319
3320         PR target/25259
3321         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
3322
3323 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
3324
3325         * config/arm/arm.c (all_fpus): Fix comment typo.
3326         * config/darwin.c: Likewise.
3327         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
3328         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
3329         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
3330
3331 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
3332
3333         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
3334         (rs6000_split_compare_and_swapqhi): New.
3335         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
3336         (sync_compare_and_swapqhi_internal): New.
3337         * config/rs6000/rs6000-protos.h: Declare.