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1 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
2
3         Revert
4
5         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
6         * tree.c (build_qualified_type): Chain the new type to the original
7         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
8         a POINTER_TYPE or a REFERENCE_TYPE respectively.
9         (build_pointer_type_for_mode): Only return unqualified types.
10         (build_reference_type_for_mode): Likewise.
11
12 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
13
14         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
15         * Makefile.in (CXX_COMPAT_WARN): Define.
16         * configure: Regenerate.
17
18 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
19
20         PR tree-opt/25911
21         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
22         to an if check.
23
24 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
25
26         * toplev.c: Fix thinko.
27
28 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
29             Marcin Dalecki  <martin@dalecki.de>
30
31         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
32         (push_srcloc): Use XNEW.
33         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
34
35 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
36
37         * df-core.c (df_set_blocks): Deleted all variable.
38
39 2006-01-28  Ian Lance Taylor  <ian@airs.com>
40
41         * cgraphunit.c (cgraph_assemble_pending_functions): Call
42         cgraph_output_pending_asms.
43
44 2006-01-28  Zack Weinberg  <zackw@panix.com>
45
46         * c.opt: Add -W(no-)overlength-strings.
47         * doc/invoke.texi: Document it.
48         * c-opts.c (c_common_handle_option): -pedantic implies
49         -Woverlength-strings, if not explicitly disabled already.
50         (c_common_post_options): -Woverlength-strings defaults to off, and
51         is always off for C++.
52         * c-common.c (fix_string_type): Issue warning about strings longer
53         than is portable only if warn_overlength_strings.  Rearrange code
54         a little for clarity.
55         * configure.in: Check for -Wno-overlength-strings as well before
56         enabling -pedantic in stage 1.
57         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
58         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
59
60         * genconditions.c (write_header, write_one_condition)
61         (write_conditions, write_writer): Consolidate very long strings
62         that were broken up to fit in C89 portable limit.  Don't use
63         printf when fputs will do.
64
65 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
66
67         * combine.c (simplify_comparison <AND>): Check
68         TRULY_NOOP_TRUNCATION before start using a subreg.
69
70         * config/mips/mips.md (*branch_zero<mode>,
71         *branch_zero<mode>_inverted, *branch_equality<mode>,
72         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
73         Remove mode check from comparisons.
74
75 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
76
77         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
78
79 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
80
81         * expmed.c (const_mult_add_overflow_p): Remove.
82         * expr.h: Remove the prototype for const_mult_add_overflow_p.
83
84         * recog.c (validate_replace_rtx_subexp): Remove.
85         * recog.h: Remove the prototype for
86         validate_replace_rtx_subexp.
87
88         * integrate.h: Remove the prototype for
89         copy_decl_for_inlining.
90         * rtl.h: Remove the prototype for mark_constant_function.
91         * tree-vectorizer.h: Remove the prototype for
92         vect_strip_conversion.
93
94         * modulo-sched.c (create_partial_schedule,
95         free_partial_schedule, reset_partial_schedule): Make them
96         static.
97
98         * hooks.c (hook_bool_rtx_int_false): Remove.
99         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
100
101 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
102
103         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
104         and -mlong-double-128 are incompatible.
105         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
106         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
107         (TARGET_LIBGCC2_CFLAGS): Define.
108         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
109         (TARGET_LIBGCC2_CFLAGS): Same.
110         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
111
112 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
113
114         PR c/19606.
115         * c-typeck.c (build_binary_op): Perform implicit casts of
116         operands before shortening them.
117
118         * cfgloopmanip.c (split_loop_bb): Remove.
119         * cfgloop.h: Remove the prototype for split_loop_bb.
120
121         * cfgloop.c (flow_loop_outside_edge_p): Remove.
122         * cfgloop.h: Remove the prototype for
123         flow_loop_outside_edge_p.
124
125         * emit-rtl.c (init_virtual_regs): Make it static.
126         * function.h: Remove the prototype for init_virtual_regs.
127
128         * recog.c (peephole2_optimize): Make it static.
129         * recog.h: Remove the prototype for peephole2_optimize.
130
131 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
132
133         * df-scan.c (df_record_entry_block_defs): Check if
134         INCOMING_RETURN_ADDR_RTX is defined.
135
136 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
137             Kenneth Zadeck <zadeck@naturalbridge.com>
138
139         PR rtl-optimization/24762
140         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
141         * targhooks.c (hook_void_bitmap): New hook prototype.
142         * targhoohs.h (hook_void_bitmap): Ditto.
143         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
144         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
145         * target.h (live_on_entry): New function pointer.
146         * df-scan.c (df_all_hard_regs): Removed.
147         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
148         (df_scan_free_internal): Added df->entry_block_defs.
149         (df_scan_alloc): Ditto.
150         (df_scan_dump): Ditto.
151         (df_uses_record): Plumbed flag field properly thru calls.
152         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
153         This part fixes PR24762.
154         (df_bb_refs_record): Added code to make the frame and arg
155         pointers live in EH blocks.
156         (df_refs_record): Added call to df_record_entry_block_defs.
157         (df_record_entry_block_defs): New function.
158         * df-core.c: Added comments to describe new artifical defs.
159         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
160         (entry_block_defs): New field in struct df.
161         (df_all_hard_regs): Deleted.
162         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
163         * df-problems.c (df_ru_bb_local_compute_process_def):
164         Added code to handle artifical defs in the entry to a function.
165         (df_ru_bb_local_compute): Ditto.
166         (df_rd_bb_local_compute_process_def):  Ditto.
167         (df_rd_bb_local_compute): Ditto.
168         (df_lr_bb_local_compute): Ditto.
169         (df_ur_bb_local_compute): Ditto.
170         (df_urec_bb_local_compute):  Ditto.
171         (df_chain_create_bb):  Ditto.
172         (df_ur_local_finalize): Removed entry.
173         (df_urec_init): Ditto.
174         (df_urec_local_finalize): Ditto.
175         (df_ri_bb_compute): Added detection of last use of pseudos.
176         * Makefile.in (df-scan.o): Updated dependencies.
177         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
178         * config/mips/mips.c (mips_set_live_on_entry): Added.
179         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
180         for target hook.
181         * dce.c (marked_insn_p): Added code to handle artifical defs.
182
183 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
184
185         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
186         intrinsic.
187         (_mm_cvtsi128_si64): Likewise.
188         (_mm_cvtsd_si64): Likewise.
189         (_mm_cvttsd_si64): Likewise.
190         (_mm_cvtsi64_sd): Likewise.
191         (_mm_cvtsi64_si128): Likewise.
192         * config/i386/mmintrin.h (_m_from_int64): Likewise.
193         (_mm_cvtsi64_m64): Likewise.
194         (_m_to_int64): Likewise.
195         (_mm_cvtm64_si64): Likewise.
196         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
197         (_mm_cvttss_si64): Likewise.
198         (_mm_cvtsi64_ss): Likewise.
199         (_mm_cvtss_f32): Likewise.
200
201 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
202
203         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
204         for pragma redefine_extname.
205
206 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
207
208         PR target/25864
209         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
210         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
211         -mno-minimal-toc to previous content.
212         (bispecs): Remove goal.
213         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
214         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
215         compatibility aliases on powerpc-*-*gnu*.
216         * config/rs6000/libgcc-ppc-glibc.ver: New file.
217         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
218         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
219         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
220         (ldblspecs): New goal.
221         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
222         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
223         _df_to_tf.
224         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
225         L_sf_to_tf or L_df_to_tf is defined.
226
227 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
228             Alan Modra  <amodra@bigpond.net.au>
229
230         PR target/25864
231         * config/rs6000/linux.h (POWERPC_LINUX): Define.
232         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
233         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
234         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
235         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
236         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
237         (rs6000_override_options): Initialize rs6000_ieeequad.
238         Initialize TFmode format to ibm_extended_format if not
239         TARGET_IEEEQUAD.
240         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
241         ieeelongdouble.
242         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
243         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
244         (function_arg_advance): IBM long double passed in two FPRs, not
245         split.
246         (function_arg): IBM long double passed in FPRs.
247         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
248         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
249         Only multireg GPR aligned.
250         (rs6000_init_libfuncs): Enable IBM long double functions if not
251         IEEEQUAD.
252         (rs6000_generate_compare): Use IBM long double compare if not
253         TARGET_IEEEQUAD.
254         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
255         (TARGET_IEEEQUAD): Define.
256         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
257         not TARGET_IEEEQUAD.
258         * config/rs6000/rs6000.md: Enable TFmode patterns if
259         !TARGET_IEEEQUAD.
260         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
261         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
262         and -mlong-double-128 are incompatible.
263         * doc/invoke.texi (-mabi): Collect options together.  Add
264         ibmlongdouble and ieeelongdouble.
265
266 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
267
268         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
269         opaque type.
270         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
271         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
272         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
273         * rtl.h (rtunion_def): Remove rt_ptr.
274         (X0PTR): Delete.
275         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
276         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
277         * config/i386/winnt.c (i386_pe_mark_dllexport)
278         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
279
280 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
281
282         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
283
284 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
285
286         PR other/24829
287         PR target/24831
288         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
289         pthread_key_delete.  From John David Anglin.  gthrw-ify
290         pthread_getunique_np only if it it's not a macro.  Delete
291         UNUSED macro.
292         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
293         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
294         __gthread_objc_condition_signal, __gthread_key_delete): Add
295         "__attribute__ ((__unused__))" to unused arguments.
296         (__gthread_recursive_mutex_init_function): Add missing return.
297         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
298         gthr-posix95.h: Use macro-based approach for name redirection
299         on targets missing weakref.
300
301 2006-01-26  Zack Weinberg  <zackw@panix.com>
302
303         * genconditions.c (write_header): In generated code, #ifdef out
304         all includes and fake declarations, except includes of bconfig.h
305         and system.h, unless GCC_VERSION >= 3001.  Do not include
306         gensupport.h in any case.
307         (write_conditions): Generate a definition of struct c_test.  Add
308         a comment to the generated #endif.
309         (write_one_condition): Escape backslashes in string too.
310         (write_writer): Generated code must escape backslashes and quote
311         marks (but not newlines) in the strings it writes.
312         * Makefile.in (build/gencondmd.o): Update dependencies.
313
314 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
315
316         PR target/25961
317         * Makefile.in (insn-automata.o): Add header file dependencies.
318         * genautomata.c: Add includes.
319
320 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
321
322         PR target/25961
323         * Makefile.in (insn-automata.o): Add -Wno-error flag.
324
325 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
326
327         * configure.ac: Expect target tools paths to be passed from the toplevel
328         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
329         AS_SET_VAR_IF.
330         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
331
332 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
333
334         PR c/25892
335         * c.opt (Wpointer-sign): Init to -1.
336         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
337         OPT_pedantic, to 0 otherwise.
338         * doc/invoke.texi: Update.
339
340 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
341
342         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
343         constants provided by 80387 instructions in the destination mode.
344
345 2006-01-26  Richard Guenther  <rguenther@suse.de>
346             Andrew Pinski  <pinskia@physics.uc.edu>
347
348         PR tree-opt/21470
349         partial PR tree-opt/17064
350         * tree-ssa-structalias.c (intra_create_variable_infos):
351         Create heap variables for incoming parameters if
352         flag_argument_noalias > 1.
353         (find_what_p_points_to): Look through default defs of
354         parameter decls.
355
356 2006-01-26  Jeff Law  <law@redhat.com>
357
358         PR ada/25900
359         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
360         with a VR_ANTI_RANGE and the VR_ANTI_RANGEis completely contained
361         within the VR_RANGE, use the VR_RANGE as the result, not the
362         VR_ANTI_RANGE.
363         (adjust_range_with_scev): Reject ranges from SCEV which are out
364         of bounds for the type.
365
366 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
367
368         * tree-ssa-alias.c (maybe_create_global_var): Change
369         subvar walking to an assertion that we don't have subvar'd variables.
370
371 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
372
373         PR C/25861
374         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
375         Use a new variable, inner.  PARM_DECLs are always non-weak.
376
377 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
378
379         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
380         --disable-checking.
381
382 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
383
384         * config/mips/mips.md (*clear_upper32): New combiner pattern.
385
386 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
387
388         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
389         (smax_insn, smin_insn, smax_0, smin_0): New.
390
391 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
392
393         PR target/25947
394         * config/cris/cris.c (cris_order_for_addsi3): New function.
395         * config/cris/cris-protos.h: Prototype it.
396         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
397         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
398         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
399         (split for "op.S1 [rx=rx+i],ry (swapped)")
400         (split for "op(s|u).S1 [rx=rx+i],ry")
401         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
402         Apply cris_order_for_addsi3 when generating addsi3 insns.
403
404 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
405
406         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
407         (TREE_BLOCK): Add call to EXPR_CHECK.
408
409 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
410
411         PR 25886
412         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
413         * tree-pretty-print.c (dump_omp_clause): Extract from ...
414         (dump_omp_clauses): ... here.
415         (dump_generic_node): Handle OMP_CLAUSE.
416         * tree.c (omp_clause_num_ops): New.
417         (omp_clause_code_name): New.
418         (tree_code_size): Handle OMP_CLAUSE.
419         (tree_size): Likewise.
420         (make_node): Document handling of OMP_CLAUSE.
421         (tree_node_structure): Handle OMP_CLAUSE.
422         (omp_clause_check_failed): New.
423         (omp_clause_range_check_failed): New.
424         (omp_clause_operand_check_failed): New.
425         (build_omp_clause): New.
426         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
427         * tree.h (enum omp_clause_code): Declare.
428         (OMP_CLAUSE_SUBCODE_CHECK): Define.
429         (OMP_CLAUSE_RANGE_CHECK): Define.
430         (OMP_CLAUSE_ELT_CHECK): Define.
431         (omp_clause_check_failed): Declare.
432         (omp_clause_operand_check_failed): Declare.
433         (omp_clause_range_check_failed): Declare.
434         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
435         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
436         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
437         (OMP_CLAUSE_LASTPRIVATE): Likewise.
438         (OMP_CLAUSE_IF_EXPR): Likewise.
439         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
440         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
441         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
442         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
443         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
444         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
445         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
446         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
447         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
448         (OMP_CLAUSE_CODE): Define.
449         (OMP_CLAUSE_SET_CODE): Define.
450         (OMP_CLAUSE_CODE): Define.
451         (OMP_CLAUSE_OPERAND): Define.
452         (struct tree_omp_clause): Declare.
453         (union tree_node): Add field 'omp_clause'.
454         * treestruct.def (TS_OMP_CLAUSE): Define.
455         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
456         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
457         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
458         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
459         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
460         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
461         (OMP_CLAUSE): Define.
462         * print-tree.c (print_node): Handle OMP_CLAUSE.
463         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
464         * c-typeck.c: Likewise.
465         * gimplify.c: Likewise.
466         * c-omp.c: Likewise.
467         * tree-nested.c: Likewise.
468         * tree-inline.c: Likewise.
469         * c-parser.c: Likewise.
470         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
471         clauses.
472
473 2006-01-25  Roger Sayle  <roger@eyesopen.com>
474
475         PR rtl-optimization/25703
476         * combine.c (try_combine): Handle zero_extract and strict_low_part
477         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
478
479 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
480
481         * global.c: Fix comment typos.
482
483 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
484
485         PR target/25758
486         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
487         Use output_addr_const instead of assemble_name.
488
489 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
490
491         * Makefile.in (sched-vis.o): Update dependencies.
492         * haifa-sched.c (sched_finish): Clear current_sched_info.
493         * cfg.c (dump_bb_info): New, split from dump_flow_info.
494         (dump_flow_info): Call it.
495         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
496         a slim RTL dump.
497         * basic-block.h (dump_bb_info): Declare.
498         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
499         option, and apply options only for dump files whose TDF_RTL,
500         TDF_TREE, or TDF_IPA bits match.
501         * rtl.h: Declare new functions exported from sched-vis.c.
502         * sched-vis.c: Enable also if scheduling is not used.
503         (print_value): Print the mode of registers if not inside scheduling.
504         (print_insn): Make it work outside the scheduler.  Beautify the output
505         a bit.
506         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
507
508 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
509
510         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
511         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
512         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
513         depending on the value of CONSTANT_POOL_ADDRESS_P.
514         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
515         SYMBOL_REF_DECL.
516         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
517         rather than SYMBOL_REF_DECL.
518         (rtx_constant_pool): Remove const_rtx_sym_htab.
519         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
520         (init_varasm_status): Don't initialize const_rtx_sym_htab.
521         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
522         Remove handling of const_rtx_sym_htab.
523         (find_pool_constant): Delete.
524         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
525         rather than find_pool_constant.
526         (get_pool_constant_for_function): Delete.
527         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
528         find_pool_constant.
529         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
530         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
531         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
532         (SYMBOL_REF_CONSTANT): New macro.
533         (get_pool_constant_for_function): Delete.
534         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
535         rather than SYMBOL_REF_DECL.
536         (i386_pe_mark_dllimport): Likewise.
537         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
538         rather than SYMBOL_REF_DECL.
539         * config/darwin.c (machopic_indirect_data_reference): Likewise.
540         (machopic_indirect_call_target): Likewise.
541
542 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
543
544         * flow.c (delete_noop_moves): Add missing EOL to dump message.
545
546 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
547
548         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
549
550 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
551
552         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
553
554 2006-01-24  David Daney  <ddaney@avtrex.com>
555
556         PR java/25816
557         * configure.ac (enable_tls): New enable option.
558         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
559         * configure: Regenerate.
560         * doc/install.texi (--enable-tls): Document new option.
561         (--disable-tls): Ditto.
562
563 2006-01-24  Richard Henderson  <rth@redehat.com>
564
565         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
566         * alias.c (true_dependence): Respect it.
567         (canon_true_dependence, write_dependence_p): Likewise.
568         * builtins.c (get_builtin_sync_mem): Set it.
569
570 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
571
572         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
573         efficient way.
574
575 2006-01-24  DJ Delorie  <dj@redhat.com>
576
577         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
578         for storing constants in single-bit bitfields.
579
580 2006-01-25  Ben Elliston  <bje@au.ibm.com>
581
582         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
583
584 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
585
586         PR tree-opt/25860
587         * tree-ssa-pre.c (phi_translate): Return NULL
588         for AGGREGATE_TYPE's.
589
590 2006-01-24  Zack Weinberg  <zackw@panix.com>
591
592         * genautomata.c (process_state_for_insn_equiv_partition):
593         Use xcalloc for insn_arcs_array.
594         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
595         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
596
597 2006-01-24  Richard Henderson  <rth@redhat.com>
598
599         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
600         update all callers.
601
602 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
603
604         PR rtl-optimization/25890
605         PR rtl-optimization/25905
606         * combine.c (expand_compound_operation, expand_field_assignment):
607         Fail if the bitfield's final position is out of bounds.
608
609 2006-01-24  Ian Lance Taylor  <ian@airs.com>
610
611         PR middle-end/25930
612         * cgraphunit.c (cgraph_output_in_order): Don't clear
613         cgraph_asm_nodes until after asm strings have been output.
614
615 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
616
617         * fix-header.c (read_scan_file): Add new parameter imultilib when
618         calling register_include_chains.
619
620 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
621
622         * omp-low.c: Update documentation.
623
624 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
625             Daniel Berlin  <dberlin@dberlin.org>
626
627         PR tree-opt/25315
628         PR tree-opt/25857
629         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
630         return from the function.
631
632 2006-01-22  Zack Weinberg  <zackw@panix.com>
633
634         * rtl.def (match_code): Add second argument.
635         * genpreds.c (write_extract_subexp): New function.
636         (write_match_code): Add path argument.  Use write_extract_subexp.
637         (write_predicate_expr): Pass path to write_match_code.
638         (mark_mode_tests): MATCH_CODE applied to a subexpression does
639         not perform a mode test.
640         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
641         a subexpression does not constrain the top-level code set.
642         * read-rtl.c (read_rtx_variadic): New function.
643         (read_rtx_1): Use it; allow AND and IOR to be variadic.
644         * doc/md.texi: Document new notation.
645         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
646         (cmpsi_operand): ... here, using new notation.
647
648 2006-01-22  Zack Weinberg  <zackw@panix.com>
649
650         * varray.c: Remove GENERATOR_FILE #ifdefs.
651
652 2006-01-22  Zack Weinberg  <zackw@panix.com>
653
654         * genautomata.c (output_reserved_units_table): Emit nothing if
655         description->query_units_num is zero.  Remove extra blank line.
656         (output_cpu_unit_reservation_p): Short circuit
657         if description->query_units_num is zero.
658
659 2006-01-22  Zack Weinberg  <zackw@panix.com>
660
661         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
662         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
663         nor any of the random handful of variables that used to be necessary
664         when this program was linked with rtlanal.o.  Prune set of forward
665         function declarations.
666         (struct attr_desc): Remove static_p field.
667         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
668         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
669         (attr_string): Do not read the character one past the length of
670         the string.
671         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
672         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
673         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
674         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
675         (make_automaton_attrs): New.
676         (main): Do not call into genautomata.  Call local gen_bypass
677         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
678         Remove special case for insn_alts.
679         * genautomata.c: Include gensupport.h; not genattrtab.h nor
680         varray.h (leftover from previous change).  Prune set of forward
681         function declarations.  Remove state_alts fields from all
682         structures.  Remove state_alts_table from struct automaton.
683         Make everything except main static.  Do not maintain num_dfa_decls.
684         Do not maintain state_alts fields of various structures.
685         (process_decls): Don't validate condexp for dm_insn_reserv decls.
686         (add_arc): Remove state_alts argument.  All callers updated.
687         (output_reserved_units_table): Emit #ifdef here...
688         (output_tables): ...not here.  Don't generate state_alts tables.
689         (expand_automata): Don't generate attributes.
690         (write_automata): Don't generate state_alts functions.
691         (main): New function.
692         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
693         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
694         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
695         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
696         (BYPASS_P_FUNC_NAME, output_state_alts_table)
697         (output_automata_list_state_alts_code, output_internal_state_alts_func)
698         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
699         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
700         Delete.
701         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
702         * genattrtab.h: Delete file.
703         * Makefile.in (OBJS-common): Add insn-automata.o.
704         (insn-automata.o): New rule.
705         (simple_generated_c): Add insn-automata.c.
706         (build/genattrtab.o, build/genautomata.o): Update dependencies.
707         (genprogmd): Add automata.
708         (build/genattrtab): Needs no extra objects nor libraries.
709         (build/genautomata): Needs build/vec.o and -lm.
710
711 2006-01-22  Zack Weinberg  <zackw@panix.com>
712
713         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
714         (output_dfa_max_issue_rate, locked_states_num): Delete.
715         (struct automaton): Add locked_states field.
716         (output_dead_lock_vect): Save number of locked states in
717         automaton->locked_states.  If it is zero, don't print anything.
718         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
719         (output_internal_dead_lock_func): Only test the dead_lock_vect
720         for automata that have locked states.
721         (output_statistics): Always print the number of locked states for
722         each automaton.  Calculate total number of locked states here.
723         (write_automata): Don't call output_dfa_max_issue_rate.
724         * genattrtab.c: Define length_unit_log as a const variable.
725         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
726         max_insn_queue_index const.
727         * final.c (length_unit_log): Declare const.
728         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
729
730 2006-01-22  Zack Weinberg  <zackw@panix.com>
731
732         * genautomata.c:  Include vec.h, not varray.h.
733         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
734         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
735         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
736         VEC_* macros operating on appropriately typed vectors, or to
737         malloced arrays when the size is known in advance.  Const-ify
738         many char* variables and function arguments.  No functional changes.
739         * Makefile.in (build/varray.o): Delete rule.
740         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
741         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
742
743 2006-01-22  Zack Weinberg  <zackw@panix.com>
744
745         * gensupport.c: Define get_insn_name and record_insn_name here.
746         (read_md_rtx): Call record_insn_name as appropriate.
747         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
748         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
749         * genpreds.c, genrecog.c: Don't define get_insn_name nor
750         record_insn_name.
751         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
752         (BUILD_VARRAY): Delete.
753         (genprognormal): Rename genprogmd.  Fold in all programs from
754         genprognoprint; also attrtab.
755         (build/genattrtab): Just mention genautomata.o and varray.o.
756         Reorganize a bit, add comments to make the categories clearer.
757
758 2006-01-22  Zack Weinberg  <zackw@panix.com>
759
760         * genconditions.c (condition_table, add_condition): Delete.
761         (write_conditions): Don't emit n_insn_conditions nor
762         insn_elision_unavailable.  Issue the gcc version #ifdef here,
763         inside the table, with no #else clause ...
764         (write_header): ...not here.
765         (write_writer): New function.
766         (main): Don't initialize condition_table.  Use add_c_test.
767         Call write_writer.
768         * gensupport.c (init_md_reader_args_cb): Handle multiple input
769         files on the command line.
770         (maybe_eval_c_test): Don't check insn_elision_unavailable.
771         Return -1 if there is no entry in the table, don't abort.
772         (add_c_test, traverse_c_tests): New functions.
773         * gensupport.h (insn_elision_unavailable, insn_conditions)
774         (n_insn_conditions): Delete declarations.
775         (add_c_test, traverse_c_tests): Declare.
776         * read-rtl.c: Include gensupport.h.
777         (read_conditions): New function.
778         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
779         (read_rtx_1): If we get EOF when we were looking for an initial
780         open paren, return 0.  Call read_conditions when appropriate.
781         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
782         dummy-conditions.o.  Eliminate references to insn-conditions.o,
783         or change them to build/gencondmd.o, as appropriate.  Remove
784         insn-constants.h from $(simple_generated_h) and insn-conditions.c
785         from $(simple_generated_c).  For all files remaining in those
786         two lists, add insn-conditions.md to the generator command line.
787         Give insn-constants.h/s-constants their own rules.  Add rules
788         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
789         (build/read-rtl.o): Depend on gensupport.h.
790         (genprognormal): Include preds.
791         (genprogearly): Rename genprognoprint; only difference is now that
792         they don't link with $(BUILD_PRINT).
793         * dummy-conditions.c: Delete.
794
795 2006-01-22  Zack Weinberg  <zackw@panix.com>
796
797         * genextract.c: Don't include insn-config.h.  Do include vec.h.
798         Declare vectors of int, char, and locstr.
799         (locstr): New typedef.
800         (struct extraction): Make all array fields into bare pointers.
801         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
802         (insn_code_number): Delete.
803         (accum_extract): New struct.
804         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
805         (gen_insn): Take insn_code_number as an argument.  Use an
806         accum_extract structure instead of loading data directly into
807         a struct extraction, and having to know how big it might get.
808         (walk_rtx): Operate entirely on an accum_extract structure.
809         (print_path): Avoid unnecessary use of printf.
810         (print_header): New function, split out of main.  Distinguish
811         more carefully between an unrecognizable insn and an insn that
812         has the code number of a define_expand.
813         (main): Pass insn_code_number to gen_insn.  Call print_header
814         only after parsing.  Avoid unnecessary use of printf.
815         * Makefile.in (build/vec.o): New rule.
816         (build/genextract): Depend on build/vec.o.
817         (build/genextract.o): Don't depend on insn-config.h.
818
819 2006-01-22  Zack Weinberg  <zackw@panix.com>
820
821         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
822         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
823         practical.  Eliminate per-generator-program link rules.
824
825 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
826
827         PR middle-end/24437
828         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
829         with a call expr to ...
830         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
831
832 2006-01-23  Richard Guenther  <rguenther@suse.de>
833
834         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
835         before make_edge with conditional EDGE_TRUE_VALUE.
836
837 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
838         Jan Hubicka  <jh@suse.cz>
839         Richard Guenther  <rguenther@suse.de>
840
841         PR rtl-optimization/25654
842         * cfgexpand.c (aggregate_contains_union_type): New function.
843         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
844         for structure variables that contain a union type.
845
846 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
847
848         * gengtype.c (new_structure): Return the structure.
849         (create_option): Add an extra "next" argument.
850         (create_field): New function.
851         (adjust_field_rtx_def): Use create_option and create_field.
852         Remove a now-unnecessary call to find_structure.
853         (adjust_field_tree_def): Likewise.
854         (note_yacc_type): Remove an unnecessary call to find_structure.
855         * gengtype.h (new_structure): Return the structure.
856         (create_option): Add an extra argument.
857         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
858         (option): Adjust calls to create_option.
859
860 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
861
862         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
863
864 2006-01-22  Paul Brook  <paul@codesourcery.com>
865         Peter Barada  <peter@the-baradas.com>
866
867         * config/m68k/m68k.md: Add Coldfire FPU support.
868         Define FP mode macro and associated attributes.
869         Use it for float mode patterns.
870         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
871         (LIBCALL_VALUE): Use m68k_libcall_value.
872         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
873         (m68k_function_value): Ditto.
874         (emit_move_sequence): Ditto.
875         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
876         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
877         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
878         (MULTILIB_EXCEPTIONS): Ditto.
879         * config/m68k/m68k.opt: Add mcfv4e.
880         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
881         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
882         (m68k_output_function_prologue): Save ColdFire FPU registers.
883         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
884         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
885         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
886         ColdFire FPU registers.
887         (m68k_libcall_value, m68k_function_value): New functions.
888         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
889         (LIBCALL_VALUE): Use m68k_libcall_value.
890         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
891         (MASK_COLDFIRE): Add MASK_CFV4E.
892         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
893         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
894         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
895         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
896         (GO_IF_LEGITIMATE_ADDRESS): Use it.
897         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
898         * doc/invoke.tex: Document -mcfv4e on m68k.
899
900 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
901
902         * doc/contribute.texi: Change CVS to SVN and update the corresponding
903         URL.
904
905 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
906
907         PR c++/16190
908         * c-opts.c (c_common_handle_option): Don't include
909         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
910         * doc/invoke.texi (C++ Dialect Options): Document that
911         -Wnon-virtual-dtor is no longer included in -Wall.
912
913 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
914
915         * gcov.c (print_version), gcov-dump.c (print_version),
916         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
917         dates.
918
919 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
920
921         * df-scan.c (problem_SCAN): Added NULL reset function.
922         (df_scan_reset_blocks): Added code to call reset block function
923         (df_bb_refs_delete) Fixed comment.
924         (df_insn_refs_delete): Made tolerant of deleting non existent info
925         for dataflow problems that need to be reset.
926         * df-core.c (df_set_blocks): Ditto.
927         * df.h (struct df_problem): Added reset_fun.
928         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
929         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
930         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
931         functions to clear out all references to def-use or use-def chains.
932
933 2006-01-21  Ben Elliston  <bje@au.ibm.com>
934
935         * varasm.c (assemble_real): Initialise data array.
936
937 2006-01-20  Paul Brook  <paul@codesourcery.com>
938
939         Merge from csl-arm-branch.
940         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
941         * config/arm/arm.md (movdi): Force operands[1] to a register
942         if we have a non-register source.
943         (*arm_movdi, *movdf_soft_insn): Require that one of the
944         operands be a register.
945         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
946         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
947
948 2006-01-20  DJ Delorie  <dj@redhat.com>
949
950         * varasm.c (initialize_constant_valid_p): Allow pointers
951         initialized from integer constants of lesser precision.
952         (output_constant): Allow non-int-sized pointer modes to be
953         initialized from integer constants.
954
955 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
956
957         PR libstdc++/25524
958         * cppdefault.h (struct default_include): Add multilib flag.
959         * cppdefault.c (cpp_include_defaults): Set it.
960         * c.opt (-imultilib): New option.
961         * c-opts.c (imultilib): New.
962         (c_common_handle_option): Handle -imultilib.
963         (c_common_post_options): Likewise.
964         * c-incpath.c (add_standard_paths, register_include_chains):
965         Likewise.
966         * c-incpath.h (register_include_chains): Add extra parameter.
967         * gcc.c (do_spec_1): Generate -imultilib option.
968         (The Specs Language): Update %I description.
969         (process_command): Update copyright notice.
970         * doc/cppopts.texi (-imultilib): Document.
971         * doc/invoke.texi (-imultilib): Include in option summary.
972         (%I): Update specs documentation.
973
974 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
975
976         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
977
978 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
979
980         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
981         label numbers.
982
983 2006-01-20  Richard Guenther  <rguenther@suse.de>
984         Steven Bosscher <stevenb.gcc@gmail.com>
985
986         PR rtl-optimization/24626
987         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
988         EDGE_TRUE_VALUE if in RTL mode.
989
990         Revert
991         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
992         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
993
994 2006-01-20  Dirk Mueller  <dmueller@suse.com>
995
996         PR c++/5520
997         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
998         instead of a special NOP marker.
999         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
1000         NOP marker handling.
1001         * c-common.h (empty_body_warning): Add forward declaration.
1002         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
1003         Now uses IS_EMPTY_STMT() instead of special NOP markers.
1004
1005 2006-01-20  Paul Brook  <paul@codesourcery.com>
1006
1007         * Makefile.in (lang_checks): Keep going if mkdir fails.
1008
1009 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
1010
1011         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
1012         be able to clean out basic block when not necessary.
1013         (df_scan_free): Fixed to properly delete information if df is
1014         unused before calling df_finish.
1015         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
1016         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
1017         or comment typos.
1018         (df_bb_refs_delete): New function.
1019         (df_refs_delete): Moved per block code to df_bb_refs_delete.
1020         * df-core.c (df_set_blocks): Added code to properly clean out
1021         unused blocks if they are not part of the blocks to consider.
1022         Added additional null check.
1023         (df_compact_blocks): Added basic block parameter to free_bb_fun to
1024         be able to clean out basic block when not necessary
1025         * df.h (df_free_bb_function): Ditto.
1026         (df_bb_refs_delete): New function.
1027         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
1028         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
1029         basic block parameter to be able to clean out basic block when not
1030         necessary.
1031         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
1032         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
1033         Fixed to properly delete information if df is unused before
1034         calling df_finish.
1035
1036 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
1037
1038         PR rtl-optimization/25799
1039         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
1040         Corrected confluence operator to remove bits from op2 before oring
1041         with op1 rather than removing bits from op1.
1042         (df_ru_transfer_function): Corrected test on wrong bitmap which
1043         caused infinite loop.  Both of these problems were introduced in
1044         the dataflow rewrite.
1045
1046 2006-01-19  DJ Delorie  <dj@redhat.com>
1047
1048         * reload1.c (find_reload_regs): Note the details of reload
1049         failures in the dump file.
1050         (spill_failure): Likewise.
1051
1052 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
1053
1054         * loop-iv.c: Include df.h and hashtab.h.
1055         (enum iv_grd_result): New enum.
1056         (DF_REF_IV, DF_REF_IV_SET): New macros.
1057         (struct biv_entry): New.
1058         (df, bivs): New global variables.
1059         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
1060         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
1061         Removed.
1062         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
1063         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
1064         analyzed_for_bivness_p, record_biv): New functions.
1065         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
1066         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
1067         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
1068         UD chains.
1069         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
1070         analysed.
1071         (iv_number_of_iterations): Use new interface to iv analysis.
1072         * loop-unroll.c: Do not include varray.h.
1073         (analyze_iv_to_split_insn): Use new interface to iv
1074         analysis.
1075         * loop-unswitch.c (may_unswitch_on): Ditto.
1076         * df.c (df_bitmaps_free): Only work for bbs for that structures are
1077         allocated.
1078         (df_bb_modify): Realloc tables to the new index.
1079         (df_find_use): New function.
1080         * df.h (df_find_use): Declare.
1081         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
1082         outmode.
1083         * cfgloop.h (struct rtx_iv): Remove analysed field.
1084         (iv_get_reaching_def): Removed.
1085         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
1086         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
1087         (loop-iv.o): Add df.h and hashtab.h dependency.
1088         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
1089
1090 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
1091
1092         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
1093         Double TFmode.
1094         (__floatundisf, __floatundidf): Likewise.
1095         * libgcc2.h (IS_IBM_EXTENDED): Define.
1096
1097 2006-01-19  DJ Delorie  <dj@redhat.com>
1098
1099         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
1100
1101 2006-01-19  Paul Brook  <paul@codesourcery.com>
1102
1103         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
1104         as nothrow when unwinding tables are disabled.
1105
1106 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1107
1108         PR testsuite/25171
1109         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
1110         of bit-field" when in system header.
1111
1112 2006-01-19  DJ Delorie  <dj@redhat.com>
1113
1114         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
1115         the 16 bit shift limit of the m16c.
1116
1117 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
1118
1119         PR target/22099
1120         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
1121         * config/i386/i386.c (output_set_got): Output the label if we have one
1122         for the TARGET_DEEP_BRANCH_PREDICTION case.
1123
1124 2006-01-19  Jan Hubicka  <jh@suse.cz>
1125             H.J. Lu  <hongjiu.lu@intel.com>
1126             Evandro Menezes <evandro.menezes@amd.com>
1127
1128         * invoke.texi (generic): Document
1129         (i686) Update.
1130         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
1131         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
1132         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
1133         (x86_use_incdec, x86_pad_returns): New variables
1134         (TARGET_CPU_DEFAULT_generic): New constant
1135         (TARGET_CPU_DEFAULT_NAMES): Add generic.
1136         (enum processor_type): Add generic32 and generic64.
1137         * i386.md (cpu attribute): Add generic32/generic64
1138         (movhi splitter): Behave sanely when both partial_reg_dependency and
1139         partial_reg_stall are set.
1140         (K8 splitters): Enable for generic as well.
1141         * predicates.md (incdec_operand): Use TARGET_INCDEC
1142         (aligned_operand): Avoid memory mismatch stalls.
1143         * athlon.md: Enable for generic64, new patterns for 128bit moves.
1144         * ppro.md: Enable for generic32
1145         * i386.c (generic64_cost, generic32_cost): New.
1146         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
1147         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
1148         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
1149         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
1150         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
1151         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
1152         x86_partial_reg_dependency, x86_memory_mismatch_stall,
1153         x86_accumulate_outgoing_args, x86_prologue_using_move,
1154         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
1155         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
1156         Enable for generic.
1157         (x86_use_incdec, x86_pad_returns): New.
1158         (override_options): Add generic32 and generic64, translate "generic"
1159         to generic32/generic64 and "i686" to "generic32", refuse
1160         "generic32"/"generic64" as arch target.
1161         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
1162         (ix86_reorg): Honor PAD_RETURNS.
1163
1164 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
1165
1166         * tree-pretty-print.c (dump_generic_node): Handle
1167         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
1168         * cgraph.c (cgraph_expand_queue): Rename from
1169         cgraph_analyze_queue.  Update all users.
1170         * cgraphunit.c (cgraph_assemble_pending_functions): Process
1171         cgraph_expand_queue.
1172         (cgraph_expand_all_functions): Likewise.
1173         (cgraph_finalize_pending_functions): Remove.  Update callers.
1174
1175         * tree.h (OMP_DIRECTIVE_P): Define.
1176         (OMP_PARALLEL_FN): Define.
1177         (OMP_PARALLEL_DATA_ARG): Define.
1178         (OMP_SECTIONS_SECTIONS): Define.
1179         * tree-pass.h (pass_expand_omp): Declare.
1180         * omp-low.c (struct omp_region): Declare.
1181         (struct omp_context): Remove fields 'parallel_type',
1182         'parallel_start_ix' and 'parallel_start_additional_args'.
1183         Update all users.
1184         (struct omp_for_data): Rename from struct expand_omp_for_data.
1185         (omp_regions): New static variable.
1186         (root_omp_region): New static variable.
1187         (find_omp_clause): Make static.
1188         (is_in_combined_parallel_ctx): Remove.
1189         (is_combined_parallel): New.
1190         (extract_omp_for_data): Move earlier in the file.
1191         (workshare_safe_to_combine_p): New.
1192         (get_ws_args_for): New.
1193         (determine_parallel_type): Move earlier in the file.
1194         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
1195         child function.
1196         (omp_copy_decl): Likewise.
1197         (create_omp_child_function): Likewise.
1198         (lookup_omp_region): New.
1199         (dump_omp_region): New.
1200         (debug_omp_region): New.
1201         (debug_all_omp_regions): New.
1202         (new_omp_region): New.
1203         (scan_omp_parallel): If parallel_nesting_level > 1, the
1204         directive is nested within another parallel directive.
1205         Set OMP_PARALLEL_FN.
1206         (scan_omp_for): Do not try to handle combined parallel+for
1207         cases.
1208         Remove FIXME comment.
1209         (scan_omp_nested): Remove.
1210         (scan_omp_1): Do not call scan_omp_nested when
1211         parallel_nesting_level is > 1.
1212         Do not change the DECL_CONTEXT of local variables found.
1213         (lookup_decl_in_outer_ctx): New.
1214         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
1215         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
1216         (lower_reduction_clauses): Rename from expand_reduction_clauses.
1217         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
1218         If CTX is nested, lookup VAR in the outer context when
1219         building copy assignment.
1220         (lower_send_clauses): Rename from expand_send_clauses.
1221         If CTX is nested, lookup VAR in the outer context when
1222         building copy assignments.
1223         (lower_send_shared_vars): Rename from expand_send_shared_vars.
1224         If CTX is nested, lookup VAR in the outer context when
1225         building copy assignments.
1226         (expand_parallel_call): Rename from build_parallel_call.
1227         Handle combined parallel+workshare cases.
1228         Re-implement to emit code into the CFG.
1229         (list2chain): New.
1230         (expand_omp_parallel): Re-implement to emit code into the CFG.
1231         Call move_sese_region_to_fn to outline the sub-graph
1232         containing the parallel region.
1233         (expand_omp_for_1): Remove.
1234         (expand_omp_for_generic): Re-implement to emit code into the
1235         CFG.
1236         (expand_omp_for_static_nochunk): Likewise.
1237         (expand_omp_for_static_chunk): Likewise.
1238         (expand_omp_for): Likewise.
1239         (expand_omp_sections): Likewise.
1240         (remove_exit_barriers): New.
1241         (expand_omp_synch): New.
1242         (expand_omp): New.
1243         (build_omp_regions_1): New.
1244         (build_omp_regions): New.
1245         (execute_expand_omp): New.
1246         (gate_expand_omp): New.
1247         (pass_expand_omp): Define.
1248         (lower_omp_sections): Rename from expand_omp_sections.
1249         Set OMP_SECTIONS_SECTIONS.
1250         (lower_omp_single_simple): Rename from expand_omp_single_simple.
1251         (lower_omp_single_copy): Rename from expand_omp_single_copy.
1252         (lower_omp_single): Rename from expand_omp_simple.
1253         (lower_omp_master): Rename from expand_omp_master.
1254         (lower_omp_ordered): Rename from expand_omp_ordered.
1255         (lower_omp_critical): Rename from expand_omp_critical.
1256         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
1257         (lower_omp_for): Re-implement.
1258         (lower_omp_parallel): Re-implement.
1259         (lower_regimplify): Rename from expand_regimplify.
1260         (lower_omp_1): Rename from expand_omp_1.
1261         If there are syntax errors in the program, replace every
1262         OpenMP directive with NOP.
1263         Call lower_omp_* instead of expand_omp_*.
1264         (lower_omp): Rename from expand_omp.
1265
1266         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
1267         * tree-gimple.h (enum omp_parallel_type): Remove.
1268         (gimple_boolify): Declare extern.
1269         (find_omp_clause, determine_parallel_type): Remove.
1270
1271         * gimple-low.c (lower_omp_directive): New.
1272         (lower_stmt): Call it.
1273         (record_vars_into): Move from ...
1274         (record_vars): ... here.
1275         Call record_vars_into with current_function_decl.
1276
1277         * gimplify.c (struct gimplify_ctx): Remove fields
1278         combined_pre_p and combined_ctxp.  Update users.
1279         (get_formal_tmp_var): Add documentation.
1280         (gimple_boolify): Make extern.
1281         (gimplify_expr_in_ctx): Remove.  Update callers.
1282         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
1283         will always be a BIND_EXPR.
1284         (gimplify_expr): Handle OMP_RETURN_EXPR.
1285         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
1286         (OMP_PARALLEL): Add 3 operands.
1287         (OMP_SECTIONS): Add 1 operand.
1288         (OMP_RETURN_EXPR): Define.
1289
1290         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
1291         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
1292         * tree-iterator.c (alloc_stmt_list): Assert that we are not
1293         creating a circular free list.
1294         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
1295
1296         * tree-flow.h (move_sese_region_to_fn): Declare.
1297         (record_vars_into): Declare.
1298         * tree-cfg.c (make_omp_sections_edges): New.
1299         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
1300         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
1301         OMP_SECTIONS and OMP_SECTION.
1302         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
1303         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
1304         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
1305         (gather_blocks_in_sese_region): New.
1306         (struct move_stmt_d): Declare.
1307         (move_stmt_r): New.
1308         (move_block_to_fn): New.
1309         (move_sese_region_to_fn): New.
1310
1311         * passes.c (init_optimization_passes): Schedule
1312         pass_expand_omp after pass_init_datastructures.
1313
1314         * tree-ssa-operands.c (get_expr_operands): Handle
1315         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
1316         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
1317
1318 2006-01-19  Jeff Law  <law@redhat.com>
1319
1320         * tree-vrp.c (extract_range_from_assert): Refine the result range
1321         if the variable referenced by the ASSERT_EXPR has a range and
1322         either the tentative result range or the previous range is a
1323         VR_ANTI_RANGE.
1324
1325 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
1326
1327         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
1328
1329 2006-01-19  Jan Hubicka  <jh@suse.cz>
1330
1331         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
1332
1333 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
1334
1335         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
1336         (expand_compound_operation, expand_field_assignment): Fail if the
1337         bit lengths of an extract operation are out of range.
1338         (make_extraction): Compute wanted_inner_mode based on the position
1339         and length of the extraction.  Make it extraction_mode for non-constant
1340         positions, and do not modify offset in that case.  When generating a
1341         new MEM, use a mode that can hold the extraction while keeping correct
1342         alignment.  Remove code that supported MEMs wrapped by USEs.
1343         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
1344
1345 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
1346
1347         * config/s390/s390.md ("Y", "y"): New mode attribute.
1348         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
1349         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
1350         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
1351         "*addsi3_imm_cc", "*addsi3_carry1_cc",
1352         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
1353         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
1354         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
1355         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
1356         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
1357         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
1358         "addsi3", "subsi3"): Insn patterns removed.
1359         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
1360         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
1361         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
1362         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
1363         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
1364         "*sub<mode>3_cconly2"): New insn patterns.
1365         ("addsi3", "subsi3"): New expanders.
1366
1367 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
1368
1369         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
1370         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
1371         existing STMT_VINFO_VECTYPE if available.
1372         (vect_mark_relevant): Add special handling for stmts that are
1373         marked as STMT_VINFO_IN_PATTERN_P.
1374         (vect_analyze_loop): Call vect_pattern_recog.
1375         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
1376         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
1377         stmt_info.
1378         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
1379         (vect_recog_func_ptr): New function-pointer type.
1380         * tree-vect-patterns.c: New file.
1381         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
1382         (vect_recog_dot_prod_pattern, vect_pattern_recog):
1383         (vect_pattern_recog_1): New functions.
1384         (vect_pattern_recog_funcs): New array of function pointers.
1385
1386         * tree-vectorizer.h (ternary_op): New enum value.
1387         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
1388         declaration. Revised documentation. Removed redundant dump prints.
1389         Removed redundant argument. Added support for reduction patterns.
1390         (vectorizable_reduction): Added support for reduction patterns.
1391         (vect_transform_stmt): Added support for patterns.
1392
1393         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
1394         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
1395         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
1396         (expand_widen_pattern_expr): New function.
1397         (init_optabs): Initialize new optabs udot_prod_optab,
1398         sdot_prod_optab.
1399         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
1400         (sdot_prod_optab, udot_prod_optab): Define new optabs.
1401         (expand_widen_pattern_expr): New function declaration.
1402         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
1403         tree-codes.
1404         * tree-inline.c (estimate_num_insns_1): Added cases for new
1405         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
1406         * tree-pretty-print.c (dump_generic_node): Likewise.
1407         (op_prio): Likewise.
1408         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
1409         * tree-ssa-operands.c (get_expr_operands): Added case for
1410         DOT_PROD_EXPR.
1411         * tree-vect-patterns.c (widened_name_p): New function.
1412         (vect_recog_dot_prod_pattern): Added function implementation.
1413         * tree-vect-transform.c (get_initial_def_for_reduction): Added
1414         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
1415         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
1416         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
1417
1418         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
1419         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
1420         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
1421         (init_optabs): Initialize new optabs widen_ssum_optab,
1422         widen_usum_optab.
1423         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
1424         (widen_ssum_optab, widen_usum_optab): Define new optabs.
1425         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
1426         use instead of type of def.
1427         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
1428         function implementation.
1429         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
1430         widen_ssumv8hi): New.
1431
1432         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
1433         patterns.
1434
1435 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
1436
1437         PR c/25805
1438         * c-decl.c (add_flexible_array_elts_to_size): New function.
1439         (finish_decl): Use it.
1440
1441 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
1442
1443         * diagnostic.h: Include options.h.
1444         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
1445         dependancies for diagnostic.h.
1446         * Makefile.in (DIAGNOSTIC_H): Add options.h.
1447
1448 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
1449
1450         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
1451         (ssa_ro_call_cache_valid): Ditto.
1452         * tree-ssa-alias.c (sort_tags_by_id): New function.
1453         (init_transitive_clobber_worklist): Ditto.
1454         (add_to_worklist): Ditto.
1455         (mark_aliases_call_clobbered): Ditto.
1456         (compute_tag_properties): Ditto.
1457         (set_initial_properties): Ditto.
1458         (compute_call_clobbered): Ditto.
1459         (compute_may_aliases):  Call compute_call_clobbered and grouping.
1460         (compute_flow_sensitive_aliasing): Remove clobbering related code.
1461         (compute_flow_insensitive_aliasing): Grouping now happens in our
1462         caller.
1463         (setup_pointers_and_addressables): Remove clobbering related code.
1464         (add_may_alias): Ditto.
1465         (replace_may_alias): Ditto.
1466         (get_nmt_for): Ditto.
1467         (create_global_var):
1468         (is_escape_site): Return an escape_type enumeration.
1469         * tree-flow-inline.h (is_call_clobbered):  Global var does not
1470         imply call clobbered.
1471         (mark_call_clobbered): Take a reason for marking this. Remove
1472         marking of globalness, and cache invalidation.
1473         (clear_call_clobbered): Remove cache invalidation code.
1474         * tree-dfa.c (dump_variable): If details is on, dump the reason
1475         for escaping.
1476         * tree-outof-ssa.c (create_temp): Copy escape mask from original
1477         variable.
1478         * tree-flow.h (struct ptr_info_def): Add escape mask member.
1479         (struct var_ann_d): Ditto.
1480         (enum escape_type): New.
1481         (mark_call_clobbered): Adjust prototype.
1482         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
1483         are never call clobbered.
1484         Record reasons for escaping.
1485         * tree-ssa-structalias.h (is_escape_site): Update prototype.
1486         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
1487         (ssa_ro_call_cache_valid): Ditto.
1488         (clobbered_v_may_defs): Ditto.
1489         (clobbered_vuses): Ditto.
1490         (ro_call_vuses): Ditto.
1491         (clobber_stats): New.
1492         (init_ssa_operands): Zero out clobber stats.
1493         (fini_ssa_operands): Print out clobber stats.
1494         (get_call_expr_operands): Pass callee fndecl to
1495         add_call_read_ops).
1496         (add_call_clobber_ops): Remove use of cache.
1497         Add use of PURE_CONST information.
1498         (add_call_read_ops): Remove use of cache.
1499         Add use of static not_read information.
1500
1501 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
1502
1503         Introduce TLS descriptors for i386 and x86_64.
1504         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
1505         (TARGET_ANY_GNU_TLS): New macro.
1506         (enum tls_dialect): Added TLS_DIALECT_GNU2.
1507         (struct machine_function): Add tls_descriptor_call_expanded_p.
1508         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
1509         (ix86_current_function_calls_tls_descriptor): Likewise.
1510         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
1511         (override_options): Introduce gnu2 tls dialect.
1512         (ix86_frame_pointer_required): Functions containing TLSCALLs are
1513         not leaves.
1514         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
1515         Likewise.
1516         (legitimize_tls_address): Adjust logic for GNU2 TLS.
1517         (ix86_init_machine_status): Initialize new field.
1518         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
1519         (ix86_tls_module_base): New.
1520         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
1521         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
1522         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
1523         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
1524         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
1525         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
1526         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
1527         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
1528         * config/i386/predicates.md (tls_modbase_operand): New.
1529         (tp_or_register_operand): New.
1530
1531 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
1532
1533         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
1534         (look_for_address_of): Ditto.
1535         (ipa_init): Walk the function decls.
1536         (static_execute): Don't set readonly on FUNCTION_DECL's.
1537
1538 2006-01-18  Roger Sayle  <roger@eyesopen.com>
1539
1540         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
1541         for shifts where the source and destination registers are different.
1542
1543 2006-01-18  Paul Brook  <paul@codesourcery.com>
1544
1545         Merge from csl-arm-branch.
1546         2005-03-14  Julian Brown  <julian@codesourcery.com>
1547         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
1548         (aeabi_llsl): Likewise.
1549         (ashrdi3): Likewise.
1550         (aeabi_lasr): Likewise.
1551         (lshrdi3): Likewise.
1552         (aeabi_llsr): Likewise.
1553         2005-03-10  Julian Brown  <julian@codesourcery.com>
1554         * config.gcc: Disable shared libgcc for SymbianOS.
1555         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
1556
1557 2006-01-18  DJ Delorie  <dj@redhat.com>
1558
1559         * c-pragma.c (handle_pragma_diagnostic): New.
1560         (init_pragma): Register it.
1561         * doc/extend.texi: Document it.
1562
1563         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
1564         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
1565         (diagnostic_context): Add classify_diagnostic[].
1566         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
1567         as errors if they're overridden to DK_WARNING.
1568         (diagnostic_initialize): Initialize classify_diagnostic[].
1569         (diagnostic_set_kind_override): New.
1570         (diagnostic_report_diagnostic): Check for kind changes.
1571         * opts.c (common_handle_option): Take lang_mask.  Update callers.
1572         Handle OPT_Werror_.
1573         * common.opt (Werror=): New.
1574         * doc/invoke.texi: Document -Werror=*
1575
1576 2006-01-18  Jeff Law  <law@redhat.com>
1577
1578         * tree-vrp.c (test_for_singularity): Correct test for new
1579         min limit.  Use operand_equal_p rather than pointer equality
1580         for testing if new min/max values are equal.
1581
1582         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
1583         using range information until after propagation and folding.
1584
1585 2006-01-18  Richard Henderson  <rth@redhat.com>
1586             Aldy Hernandez  <aldyh@redhat.com>
1587             Jakub Jelinek  <jakub@redhat.com>
1588             Diego Novillo  <dnovillo@redhat.com>
1589
1590         * omp-low.c: New file.
1591         * c-omp.c: New file.
1592
1593 2006-01-18  Richard Henderson  <rth@redhat.com>
1594             Jakub Jelinek  <jakub@redhat.com>
1595             Diego Novillo  <dnovillo@redhat.com>
1596
1597         * doc/invoke.texi: Document -fopenmp.
1598         * tree-dump.h (debug_function): Declare.
1599         * hooks.c (hook_bool_tree_bool_false): New function.
1600         (hook_tree_tree_null): Remove.
1601         (hook_tree_tree_tree_null): New.
1602         * hooks.h: Update to match.
1603         * tree-pretty-print.c (debug_tree_chain): New.
1604         (print_generic_expr): Handle TDF_CHAIN.
1605         (dump_generic_node): Handle BLOCK.
1606         Do not abort with incomplete SWITCH_EXPRs.
1607         Do not dump body of an OpenMP directive if TDF_SLIM is given.
1608         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
1609         print space after directive name.
1610         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
1611         Handle OMP_MASTER and OMP_ORDERED.
1612         Handle printing of OMP_BODY just in one place, goto
1613         dump_omp_body in the rest of OMP_* nodes that have
1614         OMP_BODY.
1615         Don't handle clause nodes here.  Update omp statements to
1616         use dump_omp_clauses.
1617         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
1618         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
1619         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
1620         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
1621         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
1622         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
1623         Adjust output for GOMP_PARALLEL.
1624         (dump_omp_clauses): New.
1625         (print_declaration): Dump DECL_VALUE_EXPR.
1626         (op_symbol_1): Split out of op_symbol.
1627         (dumping_stmts): Remove.  Update all users.
1628         * cgraph.c (cgraph_analyze_queue): New.
1629         (cgraph_add_new_function): New.
1630         * cgraph.h (cgraph_analyze_queue): Declare.
1631         (cgraph_add_new_function): Declare.
1632         (cgraph_lower_function): Remove.
1633         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
1634         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
1635         and TYPE_P nodes in its default clause.
1636         (empty_body_p): New.
1637         (tree_range_check_failed): New.
1638         (build5_stat): New.
1639         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
1640         OMP_CLAUSE_REDUCTION_MERGE,
1641         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
1642         OMP_CLAUSE_PRIVATE_DEBUG,
1643         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
1644         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
1645         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
1646         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
1647         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
1648         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
1649         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
1650         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
1651         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
1652         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
1653         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
1654         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
1655         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
1656         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
1657         (TREE_RANGE_CHECK): New.
1658         (empty_body_p): Declare.
1659         (enum omp_clause_default_kind): New.
1660         (build_string_literal): Declare.
1661         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
1662         (build5_stat, build5): Declare.
1663         * tree-pass.h (TDF_CHAIN): Define.
1664         * tree-pass.h (PROP_gimple_lomp): Define.
1665         (pass_lower_omp): Declare.
1666         * diagnostic.h (debug_tree_chain): Declare.
1667         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
1668         mode_for_size.
1669         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
1670         * builtins.c (build_string_literal): Make extern.
1671         * gcc.c (include_spec_function): New.
1672         (static_spec_functions): Add it.
1673         (main): Move load of libgomp.spec ...
1674         (LINK_COMMAND_SPEC): ... here.
1675         (link_gomp_spec): New.
1676         (static_specs): Include it.
1677         (LINK_COMMAND_SPEC): Add link_gomp.
1678         (GOMP_SELF_SPECS): New.
1679         (driver_self_specs): Include it.
1680         (switch_matches): Don't mark inline.
1681         (main): Load libgomp.spec.
1682         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
1683         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
1684         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
1685         * tree-gimple.h (enum omp_parallel): Declare.
1686         (determine_parallel_type): Declare.
1687         (omp_firstprivatize_variable): Declare.
1688         (omp_reduction_init): Declare.
1689         (diagnose_omp_structured_block_errors): Declare.
1690         (struct walk_stmt_info): Add want_return_expr.
1691         (struct walk_stmt_info): Add want_bind_expr, want_locations.
1692         (find_omp_clause): Declare.
1693         (insert_field_into_struct): Declare.
1694         (struct walk_stmt_info): Move from tree-nested.c
1695         (walk_stmts): Declare.
1696         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
1697         to 200505.
1698         * cgraphunit.c (cgraph_lower_function): Make static.
1699         (cgraph_finalize_pending_functions): New.
1700         (cgraph_finalize_function): Call it.
1701         (cgraph_finalize_compilation_unit): Likewise.
1702         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
1703         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
1704         (BT_FN_UINT_UINT): New.
1705         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
1706         DEF_FUNCTION_TYPE_VAR_4): Document.
1707         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
1708         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
1709         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
1710         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
1711         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
1712         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
1713         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
1714         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
1715         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
1716         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
1717         into separate files.
1718         (DEF_GOMP_BUILTIN): New.
1719         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
1720         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
1721         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
1722         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
1723         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
1724         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
1725         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
1726         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
1727         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
1728         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
1729         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
1730         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
1731         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
1732         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
1733         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
1734         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
1735         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
1736         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
1737         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
1738         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
1739         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
1740         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
1741         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
1742         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
1743         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
1744         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
1745         * sync-builtins.def: New file, moved from builtins.def.
1746         * omp-builtins.def: New file, moved from builtins.def.
1747         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
1748         * gimple-low.c (lower_function_body): Clear data.
1749         (lower_stmt): Do not handle COMPOUND_EXPR.
1750         Remove call to print_node_brief.
1751         * c-tree.h (c_finish_omp_clauses): New prototype.
1752         (C_DECL_THREADPRIVATE_P): Define.
1753         (lookup_name_no_remap, c_omp_remap_private): Remove
1754         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
1755         (check_for_loop_decls): Update decl.
1756         (lookup_name_no_remap, c_omp_remap_private): Declare.
1757         (build_indirect_ref, build_modify_expr, pushdecl,
1758         pushdecl_top_level): Move to c-common.h.
1759         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
1760         before the switch, but just in the 2 places that need it.
1761         * c-decl.c (diagnose_mismatched_decls): Do not check for
1762         mismatched thread-local attributes when OLDDECL is marked
1763         threadprivate and NEWDECL has no thread-local attributes.
1764         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
1765         (c_gimple_diagnostics_recursively): Rename from
1766         c_warn_unused_result_recursively.  Invoke
1767         diagnose_omp_structured_block_errors.
1768         (check_for_loop_decls): Return a singular decl found.
1769         * langhooks.c (lhd_omp_predetermined_sharing): Return
1770         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
1771         (lhd_omp_firstprivatize_type_sizes): New.
1772         (lhd_omp_assignment): New.
1773         (lhd_omp_predetermined_sharing): New.
1774         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
1775         (struct lang_hooks_for_types): Add
1776         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
1777         omp_predetermined_sharing, omp_disregard_value_expr,
1778         omp_private_debug_clause, omp_clause_default_ctor,
1779         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
1780         (c_finish_omp_clauses): New.
1781         (c_finish_bc_stmt): Diagnose break within omp for.
1782         (c_begin_omp_parallel, c_finish_omp_parallel): New.
1783         (build_unary_op): Return error_mark after reporting
1784         a readonly_error.
1785         (build_modify_expr): Likewise.
1786         * gimplify.c: Include optabs.h and pointer-set.h.
1787         (enum gimplify_omp_var_data): Declare.
1788         (struct gimplify_omp_ctx): Declare.
1789         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
1790         and combined_ctxp.
1791         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
1792         (push_gimplify_context, pop_gimplify_context): Allow nesting.
1793         (splay_tree_compare_decl_uid): New.
1794         (new_omp_context): New.
1795         (delete_omp_context): New.
1796         (gimple_add_tmp_var): Call omp_add_variable.
1797         (gimplify_bind_expr): Likewise.
1798         (gimplify_var_or_parm_decl): If omp_notice_variable returned
1799         true, disregard DECL_VALUE_EXPR on the decl if any.
1800         (gimplify_expr_in_ctx): New.
1801         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
1802         omp_add_variable, omp_notice_variable, omp_is_private
1803         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
1804         gimplify_adjust_omp_clauses, gimplify_omp_parallel
1805         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
1806         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
1807         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
1808         gimplify_omp_atomic): New.
1809         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
1810         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
1811         OMP_CRITICAL and OMP_ATOMIC.
1812         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
1813         * c-pragma.h (enum pragma_kind): Add
1814         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
1815         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
1816         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
1817         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
1818         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
1819         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
1820         PRAGMA_OMP_THREADPRIVATE.
1821         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
1822         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
1823         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
1824         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
1825         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
1826         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
1827         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
1828         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
1829         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
1830         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
1831         * tree-ssa-dce.c (find_control_dependence): Do not assume that
1832         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
1833         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
1834         OpenMP directives.
1835         (struct nesting_info): Add field_map,
1836         suppress_expansion, debug_var_chain.
1837         (create_nesting_tree): Initialize them.
1838         (lookup_field_for_decl): Use field_map.
1839         (get_nonlocal_debug_decl, get_local_debug_decl): New.
1840         (convert_local_omp_clauses): New.
1841         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
1842         (walk_body): Split out of walk_function.
1843         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
1844         (convert_nonlocal_reference): Handle omp statements.
1845         (convert_local_reference): Likewise.
1846         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
1847         (unnest_nesting_tree): New.
1848         (lower_nested_functions): Call it.
1849         (insert_field_into_struct): Make extern.
1850         (struct walk_stmt_info): Move to tree-gimple.h.
1851         (walk_stmts): Make extern.
1852         * omp-builtins.def: New file.
1853         * tree-iterator.c (expr_only): Clarify comment.
1854         * c-common.h (pushdecl_top_level, pushdecl,
1855         build_modify_expr, build_indirect_ref,
1856         c_finish_omp_master, c_finish_omp_critical,
1857         c_finish_omp_ordered, c_finish_omp_barrier,
1858         c_finish_omp_atomic, c_finish_omp_flush,
1859         c_finish_omp_for, c_split_parallel_clauses,
1860         omp_clause_default_kind, c_omp_sharing_predetermined,
1861         c_omp_remap_decl): Declare.
1862         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
1863         (OBJS-common): Add omp-low.o.
1864         (c-omp.o, omp-low.o): Add.
1865         (gimplify.o): Add dependency on $(OPTABS_H).
1866         (GTFILES): Add omp-low.c.
1867         (gt-stringpool.h): Add.
1868         * tree-cfg.c (set_bb_for_stmt): Do not update the
1869         block-to-labels map if we are currently expanding to RTL.
1870         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
1871         checks.
1872         Handle IDENTIFIER_NODE.
1873         (tree_verify_flow_info): Do not ICE when emitting error
1874         messages about invalid labels.
1875         (dump_function_to_file): Reset CFUN before emitting the body
1876         of the function.
1877         (debug_function): New.
1878         * passes.c (init_optimization_passes): Schedule
1879         pass_lower_omp.
1880         * langhooks-def.h (lhd_omp_predetermined_sharing,
1881         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
1882         Declare.
1883         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
1884         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
1885         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
1886         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
1887         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
1888         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
1889         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
1890         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
1891         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
1892         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
1893         (LANG_HOOK_DECLS): Use them.
1894
1895 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
1896             Richard Henderson  <rth@redhat.com>
1897             Jakub Jelinek  <jakub@redhat.com>
1898             Diego Novillo  <dnovillo@redhat.com>
1899
1900         * c-parser.c (pragma_omp_clause): Define.
1901         (c_parser_declaration_or_fndef): Document OpenMP syntax.
1902         (c_parser_compound_statement): Likewise.
1903         (c_parser_statement): Likewise.
1904         (c_parser_pragma): Handle omp pragmas.
1905         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
1906         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
1907         (c_parser_omp_clause_name, check_no_duplicate_clause,
1908         c_parser_omp_variable_list,
1909         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
1910         c_parser_omp_clause_copyprivate,
1911         c_parser_omp_clause_default,
1912         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
1913         c_parser_omp_clause_lastprivate,
1914         c_parser_omp_clause_nowait,
1915         c_parser_omp_clause_num_threads,
1916         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
1917         c_parser_omp_clause_reduction,
1918         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
1919         c_parser_omp_all_clauses, c_parser_omp_structured_block,
1920         c_parser_omp_atomic, c_parser_omp_barrier,
1921         c_parser_omp_critical, c_parser_omp_flush,
1922         c_parser_omp_for_loop, c_parser_omp_for,
1923         c_parser_omp_master, c_parser_omp_ordered,
1924         c_parser_omp_sections_scope, c_parser_omp_sections,
1925         c_parser_omp_parallel, c_parser_omp_single,
1926         c_parser_omp_construct, c_parser_omp_threadprivate): New.
1927         * c-pragma.c (init_pragma): Do omp pragma registration here.
1928         * c.opt (fopenmp): New flag.
1929
1930 2006-01-18  Eric Christopher  <echristo@apple.com>
1931
1932         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
1933         * config/darwin.h (GOMP_SELF_SPECS): Define.
1934
1935 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
1936
1937         * rtl.h: Remove the prototype for reg_alloc.
1938
1939 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1940
1941         PR target/25731
1942         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
1943         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
1944         sjlj and dwarf2 exception handling.
1945         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
1946         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
1947         * pa/pa.c (function_value): Treat complex and vector types as
1948         aggregates.
1949         (function_arg): Likewise.  Only pass scalar floats in the floating
1950         point argument registers.
1951         * pa/t-slibgcc-dwarf-ver: New file.
1952         * pa/t-slibgcc-sjlj-ver: New file.
1953         * pa/t-slibgcc-elf-ver: Delete file.
1954
1955 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
1956
1957         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
1958         unlikely_test_section_p test.
1959
1960 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
1961
1962         * mode-switching.c (optimize_mode_switching): Make it static.
1963         * basic-block.h: Remove the prototype for
1964         optimize_mode_switching.
1965
1966         * modulo-sched.c (sms_schedule): Make it static.
1967         * rtl.h: Remove the prototype for sms_schedule.
1968
1969         * postreload-gcse.c (gcse_after_reload_main): Make it static.
1970         * rtl.h: Remove the prototype for gcse_after_reload_main.
1971
1972         * reg-stack.c (reg_to_stack): Make it static.
1973         * rtl.h: Remove the prototype for reg_to_stack.
1974
1975         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
1976         Make them static.
1977         * rtl.h: Remove the prototypes for regrename_optimize and
1978         copyprop_hardreg_forward.
1979
1980 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
1981
1982         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
1983         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
1984         Test against the appropriate null constant for the mode.
1985         If 'fixup_overlap' is true, swap the operands if they overlap.
1986         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
1987         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
1988         alpha_split_tmode_pair and adjust for above change.
1989         * config/alpha/alpha.md (movtf_internal): Adjust call to
1990         alpha_split_tfmode_pair and rely on it to swap the operands.
1991         (movti_internal): New insn and post-reload splitter.
1992         (movti): New expander.
1993
1994 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
1995
1996         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
1997         operands.
1998
1999 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
2000
2001         * rtlanal.c (global_reg_mentioned_p_1,
2002         global_reg_mentioned_p): Remove.
2003         * rtl.h: Remove the prototype for global_reg_mentioned_p.
2004
2005         * flow.c (initialize_uninitialized_subregs): Make it static.
2006         * rtl.h: Remove the prototype for
2007         initialize_uninitialized_subregs.
2008
2009         * function.c (instantiate_virtual_regs): Make it static.
2010         * function.h: Remove the prototype for
2011         instantiate_virtual_regs.
2012
2013         * regmove.c (regmove_optimize, combine_stack_adjustments):
2014         Make them static.
2015         * rtl.h: Remove the prototypes for regmove_optimize and
2016         combine_stack_adjustments.
2017
2018 2006-01-17  Roger Sayle  <roger@eyesopen.com>
2019
2020         * config/i386/i386.c (COSTS_N_BYTES): New macro.
2021         (size_cost): Encode costs in bytes so that a reg-reg addition is
2022         equivalent to COSTS_N_INSNS(1).
2023         (override_options): Use the size_cost.branch_cost as the default
2024         ix86_branch_cost when optimizing for size.
2025
2026 2006-01-18  Ben Elliston  <bje@au.ibm.com>
2027
2028         * Makefile.in (D32PBIT_FUNCS): New.
2029         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
2030         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
2031         D64PBIT_FUNCS and D128PBIT_FUNCS.
2032         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
2033         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
2034         D128PBIT are set.
2035         (decnumber_dep): Define.
2036         * doc/libgcc.texi (Decimal float library routines): New node.
2037         * config/dfp-bit.h, config/dfp-bit.c: New files.
2038
2039 2006-01-18  Ben Elliston  <bje@au.ibm.com>
2040
2041         * expr.c (emit_move_change_mode): Always adjust addresses, not
2042         just during reload.  Copy replacements only during reload.
2043         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
2044         emit_move_via_integer.
2045
2046 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
2047
2048         * Makefile.in (check-%, check-consistency): Use $${srcdir}
2049         instead of $(srcdir) and ${srcdir}.
2050
2051 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
2052
2053         PR target/592
2054         PR middle-end/11135
2055         * arm.h (struct machine_function): Add pic_reg.
2056         * arm.c (arm_pic_register): Make unsigned.
2057         (arm_override_options): Only set arm_pic_register if
2058         TARGET_SINGLE_PIC_BASE.
2059         (use_return_insn): Only test for a pic register if it is fixed.
2060         (arm_compute_save_reg0_reg12_mask): Likewise.
2061         (thumb_compute_save_reg_mask): Likewise.
2062         (legitimate_pic_operand): Factor out some known invariants.
2063         (legitimize_pic_address): If we don't have a fixed pic register,
2064         then set up a pseudo in the function entry sequence.  Handle the
2065         pic base being in a pseudo.
2066         (arm_load_pic_register): Handle the pic register being in a pseudo.
2067         (arm_expand_prologue): Only set up the pic register if it is fixed.
2068         (thumb_expand_prologue): Likewise.
2069         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
2070         (pic_load_addr_based_insn): Likewise.
2071         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
2072         fixed.
2073
2074 2006-01-18  Ben Elliston  <bje@au.ibm.com>
2075
2076         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
2077         decimal float modes for all floating point registers.
2078
2079         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
2080         match_code "mem" with match_test "macho_lo_sum_memory_operand".
2081
2082 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
2083
2084         PR c/25682
2085         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
2086         even when the pointer is not NULL.
2087
2088 2006-01-16  Ian Lance Taylor  <ian@airs.com>
2089
2090         * common.opt (ftoplevel-reorder): New option.
2091         * cgraph.c (cgraph_asm_nodes): New global variable.
2092         (cgraph_asm_last_node): New static variable.
2093         (cgraph_order): New global variable.
2094         (cgraph_create_node): Set new order field.
2095         (cgraph_varpool_node): Likewise.
2096         (decide_is_variable_needed): Return true if not
2097         flag_toplevel_reorder.
2098         (cgraph_add_asm_node): New function.
2099         * cgraph.h (struct cgraph_node): Add order field.
2100         (struct cgraph_varpool_node): Add order field.
2101         (struct cgraph_asm_node): Define.
2102         (cgraph_asm_nodes, cgraph_order): Declare.
2103         (cgraph_add_asm_node): Declare.
2104         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
2105         function.
2106         (cgraph_varpool_assemble_pending_decls): Call it.
2107         (cgraph_output_pending_asms): New static function.
2108         (cgraph_finalize_compilation_unit): Call it.
2109         (struct cgraph_order_sort): Define.
2110         (cgraph_output_in_order): New static function.
2111         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
2112         !flag_toplevel_reorder case.
2113         * c-parser.c: Include "cgraph.h".
2114         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
2115         assemble_asm.
2116         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
2117         than -fno-unit-at-a-time.
2118         * doc/invoke.texi (Option Summary): Mention
2119         -fno-toplevel-reorder.
2120         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
2121         -funit-at-a-time documentation.
2122
2123 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
2124             Kazu Hirata  <kazu@codesourcery.com>
2125
2126         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
2127
2128 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
2129
2130         * Makefile.in (FUNCTION_H): New.  Use it instead of
2131         function.h throughout the file.
2132         * function.h: Include tree.h.
2133
2134 2006-01-17  Ben Elliston  <bje@au.ibm.com>
2135
2136         * recog.c: Separate some functions with whitespace.
2137
2138 2006-01-16  Richard Henderson  <rth@redhat.com>
2139
2140         Merge from gomp branch:
2141         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
2142         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
2143         and rename from struct inline_data.  Rename callee* to dst*;
2144         caller* to src*; add copy_decl hook, transform_call_graph_edges,
2145         transform_new_cfg, transform_return_to_modify, and
2146         transform_lang_insert_block flags; remove cloning_p, versioning_p,
2147         update_clones_p.
2148         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
2149         (copy_decl_for_dup): Remove.
2150         * tree-inline.c (struct inline_data): Move to header.
2151         (insert_decl_map): Export.
2152         (remap_decl): Update for member name changes.  Use copy_decl hook.
2153         Allow for replacement to be a non-decl.  Remove dead code.
2154         (remap_type_1): Check for existing mapping.
2155         (remap_type): Export.
2156         (remap_decls): Update for member name changes.
2157         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
2158         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
2159         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
2160         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
2161         (tree_function_versioning, build_duplicate_type): Likewise.
2162         (copy_body_r): Likewise.  Export.
2163         (copy_decl_for_dup): Split into ...
2164         (copy_decl_for_dup_finish, copy_decl_to_var,
2165         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
2166         (replace_ref_tree, inlining_p): Remove.
2167
2168 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2169
2170         * ifcvt.c (if_convert): Make it static.
2171         * rtl.h: Remove the prototype for if_convert.
2172
2173         * local-alloc.c (local_alloc): Make it static.
2174         * rtl.h: Remove the prototype for local_alloc.
2175
2176         * loop.c (loop_optimize): Make it static.
2177         * cfgloop.h: Remove the prototype for loop_optimize.
2178         * rtl.h: Likewise.
2179
2180 2006-01-16  DJ Delorie  <dj@redhat.com>
2181
2182         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
2183         mems.
2184
2185 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2186
2187         * pa.md: Disparage copies between general and floating-point registers
2188         in 32-bit move patterns.
2189
2190 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
2191
2192         PR testsuite/25741
2193         * Makefile.in (check-%): Depend on site.exp instead of
2194         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
2195         directories.
2196
2197 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2198
2199         * global.c (global_alloc): Make it static.
2200         * rtl.h: Remove the prototype for global_alloc.
2201
2202 2006-01-16  Richard Guenther  <rguenther@suse.de>
2203
2204         * tree-ssa-alias.c (struct used_part): Add write_only field.
2205         (get_or_create_used_part_for): Initialize it to true.
2206         (create_overlap_variables_for): Don't create structure variables
2207         for structures that only are written to.
2208         (find_used_portions): Handle MODIFY_EXPR to track whether a
2209         structure is only written to.
2210
2211 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2212
2213         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
2214         static.
2215         * basic-block.h: Remove the prototype for
2216         partition_hot_cold_basic_blocks.
2217
2218 2006-01-16  Rafael Ãƒvila de Espíndola <rafael.espindola@gmail.com>
2219
2220         * cppspec.c (lang_specific_spec_functions): Remove.
2221         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
2222         * gcc.h (lang_specific_spec_functions): Remove.
2223         * gccspec.c (lang_specific_spec_functions): Remove.
2224
2225 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
2226
2227         * combine.c (record_value_for_reg): Invalidate registers
2228         if INSN is null.
2229         (record_dead_and_set_regs_1): Likewise, by passing them to
2230         record_value_for_reg.
2231         (record_dead_and_set_regs): Invalidate stores made by a
2232         call.  We do not combine across a call, but we still
2233         relied on equivalences.
2234
2235 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
2236
2237         * tree-vrp.c (extract_range_from_binary_expr): Cope with
2238         vrp_int_const_binop returning non-constant nodes.
2239
2240 2006-01-16  Paul Brook  <paul@codesourcery.com>
2241
2242         * config/m68k/m68k.c (output_move_const_into_data_reg):
2243         Output correct mnemonic for mvz and mvs.
2244
2245 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
2246
2247         * rtl-factoring.c: Add sequence abstraction algorithm.
2248         * cfgcleanup.c (outgoing_edges_match): Extra checks.
2249         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
2250         ABNORMAL edges.
2251         (block_has_preserve_label): New function.
2252         * common.opt: Register new pass.
2253         * Makefile.in: Ditto.
2254         * passes.c: Ditto.
2255         * timevar.def: Ditto.
2256         * tree-pass.h: Ditto.
2257         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
2258         * rtl.h (make_jump_insn_raw): Add forward decl.
2259         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
2260
2261 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
2262             Roger Sayle  <roger@eyesopen.com>
2263
2264         * fold-const.c (fold_minmax): New static function.
2265         (fold_binary) <MIN_EXPR>: Call it.
2266         <MAX_EXPR>: Likewise.
2267         * stor-layout.c (place_field): Use DECL_SIZE consistently
2268         in the computation of the new record size.
2269
2270 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
2271
2272         * cse.c (cse_condition_code_reg): Make it static.
2273         * rtl.h: Remove the prototype for cse_condition_code_reg.
2274
2275         * combine.c (combine_instructions): Make it static.
2276         * rtl.h: Remove the prototype for combine_instructions.
2277
2278 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2279
2280         PR target/25168
2281         * tree.c (get_file_function_name_long): Concatenate the first global
2282         object name with a string derived from the input filename of the object
2283         for type "F".
2284
2285 2006-01-16  Ben Elliston  <bje@au.ibm.com>
2286
2287         * config/i386/winnt-stubs.c: Update FSF address.
2288         * config/xtensa/ieee754-df.S: Ditto.
2289         * config/xtensa/ieee754-sf.S: Ditto.
2290
2291 2006-01-14  Ian Lance Taylor  <ian@airs.com>
2292
2293         * ifcvt.c (noce_init_if_info): New static function, broken out of
2294         noce_process_if_block.
2295         (noce_process_if_block): Call noce_init_if_info.
2296         (check_cond_move_block): New static function.
2297         (cond_move_process_if_block): New static function.
2298         (process_if_block): Call cond_move_process_if_block.
2299
2300 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
2301
2302         * cselib.c (hash_table): Rename to cselib_hash_table.
2303         (cselib_clear_table, discard_useless_values,
2304         remove_useless_values, cselib_lookup_mem, cselib_lookup,
2305         cselib_init, cselib_finish): Adjust uses of hash_table.
2306
2307 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
2308
2309         PR tree-optimization/25485
2310         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
2311         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
2312         is known to be false and true, respectively.
2313
2314 2006-01-14  Richard Guenther  <rguenther@suse.de>
2315
2316         PR tree-optimization/22548
2317         PR tree-optimization/22555
2318         PR tree-optimization/22501
2319         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
2320         * params.def (salias-max-array-elements): New parameter.
2321         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
2322         * doc/invoke.texi (salias-max-array-elements): Document.
2323         * tree-flow-inline.h (var_can_have_subvars): We also handle
2324         arrays now.
2325         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
2326         COMPONENT_REF.
2327         * tree-ssa-structalias.c (params.h): Include.
2328         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
2329         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
2330         (get_constraint_for): For ADDR_EXPR operating on something
2331         containing an ARRAY_REF, add all subvars to the solution.
2332         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
2333         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
2334         for creating MUST_DEFs.
2335         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
2336
2337 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
2338
2339         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
2340         functions.
2341         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
2342         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
2343         number_of_iterations_le): New functions.
2344         (number_of_iterations_special): Removed.
2345         (number_of_iterations_exit): Do not use number_of_iterations_special.
2346         * tree.c (unsigned_type_for): Always return integer type.
2347
2348 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
2349         Richard Guenther  <rguenther@suse.de>
2350
2351         PR rtl-optimization/24257
2352         * gcse.c (find_moveable_store): Only consider a store movable
2353         when the SET_SRC of the insn can be assigned to a register.
2354
2355 2006-01-14  Ian Lance Taylor  <ian@airs.com>
2356
2357         * tree.c (tree_not_class_check_failed): New function.
2358         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
2359         (tree_not_class_check_failed): Declare.
2360
2361 2006-01-13  Ian Lance Taylor  <ian@airs.com>
2362
2363         * reload1.c (do_output_reload): Add assertion rejecting a
2364         CALL_INSN.
2365
2366 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
2367
2368         * combine.c (struct reg_stat): Add new fields truncation_label and
2369         truncated_to_mode.
2370         (record_value_for_reg): Reset truncated_to_mode.
2371         (record_truncated_value): New function.
2372         (check_promoted_subreg): Call it.  Rename to check_conversions.
2373         (combine_instructions): Rename check_promoted_subreg to
2374         check_conversions.
2375         (reg_truncated_to_mode): New function.
2376         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
2377         (gen_lowpart_or_truncate): New function.
2378         (force_to_mode): Use it instead of gen_lowpart.
2379
2380 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
2381
2382         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
2383         VAR is a tag, not its type tag.
2384
2385 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
2386
2387         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
2388         alternatives to match style of other entries.
2389         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
2390
2391 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
2392
2393         PR tree-optimization/25771
2394         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
2395         SSA_NAMES.
2396
2397 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
2398
2399         PR tree-opt/24365
2400         * tree-inline.c (declare_return_variable): If the return variable
2401         was marked as a non gimple complex, set the return slot variable
2402         to be a non gimple comple variable.
2403
2404 2006-01-13  Richard Guenther  <rguenther@suse.de>
2405
2406         * builtins.c (expand_builtin_sincos): New function.
2407         (expand_builtin_mathfn_3): Remove dead code, sin and cos
2408         do not set errno.
2409         (expand_builtin): Expand sincos using expand_builtin_sincos.
2410
2411 2006-01-12  DJ Delorie  <dj@redhat.com>
2412
2413         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
2414         shift counts, separate SI shifts for m32c vs m16c, pass shift type
2415         so that constant shifts can be split.
2416         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
2417         (m32c_valid_pointer_mode): Make static.
2418         (shift_gen_func_for): New.
2419         (m32c_prepare_shift): Use it.  Split large const shifts into
2420         multiple shifts.
2421         * config/m32c/predicates.md (shiftcount_operand): Allow more
2422         general operands.
2423         (longshiftcount_operand): New.
2424         * doc/md.texi (Machine Constraints): Document In6.
2425
2426 2006-01-13  Ben Elliston  <bje@au.ibm.com>
2427
2428         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
2429         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
2430         documentation.
2431
2432 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
2433
2434         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
2435         to try to avoid clobbering pieces of structures when we know
2436         something about the whole structure.
2437         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
2438
2439 2006-01-13  Ben Elliston  <bje@au.ibm.com>
2440
2441         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
2442         return in memory, as this is no limitation is no longer present.
2443
2444 2006-01-12  DJ Delorie  <dj@redhat.com>
2445
2446         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
2447         mova with fb, and for fb+0 -> An.
2448
2449         * config/m32c/mov.md (peephole2): Fix enabling logic.
2450
2451         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
2452         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
2453         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
2454         FINI_ARRAY_SECTION_ASM_OP): Define.
2455
2456         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
2457         variable.
2458         (m32c_legitimize_reload_address): New logic to reload FB to An.
2459         (m32c_output_reg_push): Add newline.
2460         (m32c_output_reg_pop): Likewise.
2461
2462 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
2463
2464         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
2465
2466 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
2467
2468         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
2469
2470 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
2471
2472         * config/sh/predicates.md (sh_rep_vec): Add parallel to
2473         match_code.
2474
2475 2006-01-11  Ben Elliston  <bje@au.ibm.com>
2476
2477         * rtlanal.c (find_reg_note): Assert insn is not null.
2478
2479 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
2480
2481         * df-scan.c (df_hard_reg_init): Move declaration of i outside
2482         ifdef.
2483
2484 2006-01-11  Jeff Law  <law@redhat.com>
2485
2486         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
2487         hold edge pairs.
2488         (mark_threaded_blocks, register_jump_thread): New functions.
2489         (thread_through_all_blocks): Remove unwanted argument.  No
2490         longer rely on e->aux to communicate thread target info.
2491         Call mark_threaded_blocks.  Release the threaded_blocks
2492         bitmap and threaded_edges vector when complete.
2493         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
2494         (threaded_blocks): Remove.
2495         (tree_ssa_dominator_optimize): Remove initialization and
2496         finalization of threaded_blocks.  Simplify call to
2497         thread_through_all_blocks.
2498         (thread_across_edge): Call register_jump_thread rather than
2499         storing thread information into e->aux.
2500         (free_all_edge_infos): Simplify now that e->aux is no longer
2501         used to communicate with thread_through_all_blocks.
2502         * tree-flow.h (thread_through_all_blocks): Update prototype.
2503         (register_jump_thread): Prototype.
2504
2505 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
2506
2507         * df-core.c (df_compact_blocks, df_bb_replace): Use
2508         SET_BASIC_BLOCK instead of BASIC_BLOCK.
2509
2510 2006-01-11  Richard Guenther  <rguenther@suse.de>
2511
2512         PR tree-optimization/25734
2513         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
2514         stop propagation after successful propagation to the LHS.
2515
2516 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
2517
2518         * basic-block.h (control_flow_graph): Change the type of
2519         x_basic_block_info to VEC(basic_block,gc) *.
2520         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
2521         basic_block_info.
2522         (SET_BASIC_BLOCK): New.
2523         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
2524         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
2525         * cfgbuild.c (find_basic_blocks): Likewise.
2526         * cfglayout.c (fixup_reorder_chain): Likewise.
2527         * cfgrtl.c (create_basic_block_structure,
2528         rtl_create_basic_block): Likewise.
2529         * ifcvt.c (find_if_case_1): Likewise.
2530         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
2531         Likewise.
2532
2533 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
2534
2535         * Makefile.in: Removed rotted odf.c entry.
2536
2537 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
2538
2539         PR target/25706
2540         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
2541         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
2542         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
2543         output pattern modifier, not %e.
2544         * config/cris/cris.c (cris_op_str): Update comment about pattern
2545         modifier.
2546         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
2547         before falling through into...
2548         <case 'E'>: Redefined from old 'e' case.
2549
2550 2006-01-11  Jan Hubicka  <jh@suse.cz>
2551
2552         PR target/25042
2553         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
2554
2555 2006-01-11  Jan Hubicka  <jh@suse.cz>
2556
2557         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
2558         * i386.c (x86_decompose_lea): Kill.
2559         (ix86_rtx_costs): Kill.
2560
2561 2006-01-11  Jan Hubicka  <jh@suse.cz>
2562
2563         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
2564         * cgraph.h (cgraph_node): Add inline_decl.
2565         (cgraph_insert_node_to_hashtable): Declare.
2566         (save_inline_function_body): Declare.
2567         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
2568         clones.
2569         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
2570         (cgraph_function_versioning): Update call of tree_function_versioning.
2571         (save_inline_function_body): New function.
2572         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
2573         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
2574         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
2575         (cgraph_default_inline_p): Likewise.
2576         (cgraph_decide_inlining_incrementally): Likewise.
2577         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
2578         (copy_bb): Kill saving; do updating of clones.
2579         (copy_cfg_body): Kill saving.
2580         (initialize_inlined-parameters): Likewise.
2581         (expand_call_inline): Likewise.
2582         (save_body): Kill.
2583         (tree_function_versioning): New parameter "update_clones".
2584         (inlining_p): Kill saving.
2585         * tree-inline.h (tree_function_versioning): Update prototype.
2586         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
2587         saving.
2588
2589 2006-01-11  Ian Lance Taylor <ian@airs.com>
2590
2591         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
2592         Allow undoing set of machine mode.
2593         (do_SUBST): Use enums instead of is_int.
2594         (do_SUBST_MODE): New function.
2595         (SUBST_MODE): New macro.
2596         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
2597         reg and trying to replace reg_regno_rtx with a new register.
2598         (undo_all): Use new enums, handle undoing a PUT_MODE change.
2599         (simplify_set): Use SUBST_MODE.
2600         (distribute_notes): Remove code that tried to update reg notes
2601         for regno_reg_rtx changes.
2602
2603 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
2604
2605         PR tree-optimization/23109
2606         PR tree-optimization/23948
2607         PR tree-optimization/24123
2608
2609         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
2610         * tree-cfg.c (single_noncomplex_succ): New.
2611         * tree-flow.h (single_noncomplex_succ): Declare it.
2612         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
2613         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
2614         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
2615         insert_bb, register_division_in, insert_reciprocals,
2616         replace_reciprocal, free_bb): New.
2617         (execute_cse_reciprocals_1): Rewritten.
2618         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
2619         Do not commit any edge insertion.  Always compute dominators and
2620         create the allocation pool.
2621         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
2622         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
2623         * targhooks.c (default_min_divistions_for_recip_mul): New.
2624         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
2625         * passes.c (init_optimization_passes): Run recip after tree loop
2626         optimizations.
2627         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
2628
2629 2006-01-11  Danny Berlin <dberlin@dberlin.org>
2630             Kenneth Zadeck <zadeck@naturalbridge.com>
2631
2632         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
2633         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
2634         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
2635         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
2636         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
2637         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
2638         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
2639         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
2640         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
2641         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
2642         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
2643         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
2644         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
2645         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
2646         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
2647         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
2648         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
2649         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
2650         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
2651         DF_SCAN_POST_ALLOC): New macros.
2652         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
2653         df_free_bb_function, df_local_compute_function, df_init_function,
2654         df_dataflow_function, df_confluence_function_0,
2655         df_confluence_function_n, df_transfer_function,
2656         df_finalizer_function, df_free_function, df_dump_problem_function,
2657         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
2658         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
2659         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
2660         df_urec_bb_info, ) New types.
2661         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
2662         variables.
2663         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
2664         df_analyze_simple_change_some_blocks,
2665         df_analyze_simple_change_one_block, df_compact_blocks,
2666         df_bb_replace, df_bb_regno_last_use_find,
2667         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
2668         df_insn_regno_def_p, df_find_def, df_find_use,
2669         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
2670         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
2671         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
2672         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
2673         debug_df_chain, df_get_dependent_problem, df_chain_create,
2674         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
2675         df_grow_bb_info, df_chain_dump, df_print_bb_index,
2676         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
2677         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
2678         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
2679         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
2680         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
2681         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
2682         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
2683         df_ref_remove, df_insn_refs_delete, df_refs_delete,
2684         df_reorganize_refs, df_set_state, df_hard_reg_init,
2685         df_read_modify_subreg_p) New public functions.
2686         * df-core.c: The core dataflow solver and glue routines for rtl
2687         dataflow.
2688         (df_init, df_add_problem, df_set_blocks, df_finish,
2689         df_hybrid_search_forward, df_hybrid_search_backward,
2690         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
2691         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
2692         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
2693         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
2694         df_reg_defined, df_find_use, df_reg_used, df_dump,
2695         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
2696         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
2697         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
2698         debug_df_useno, reset_df_after_reload): New functions.
2699         * df-scan.c: The scanning fuctions, once in df.c, completely
2700         rewritten so that they now fully model the functionality of
2701         register usage at the backend.
2702         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
2703         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
2704         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
2705         df_grow_insn_info, df_rescan_blocks, df_ref_create,
2706         df_get_artificial_defs, df_get_artificial_uses,
2707         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
2708         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
2709         df_refs_delete, df_reorganize_refs, df_set_state,
2710         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
2711         df_def_record_1, df_defs_record, df_uses_record,
2712         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
2713         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
2714         df_record_exit_block_uses, df_hard_reg_init): New functions.
2715
2716         * df-problems.c: Seven concrete dataflow problems that use the
2717         scanning in df-scan.c and are solved by the engine in df-core.c.
2718         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
2719         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
2720         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
2721         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
2722         df_ru_free_bb_info, df_ru_alloc,
2723         df_ru_bb_local_compute_process_def,
2724         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
2725         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
2726         df_ru_transfer_function, df_ru_free, df_ru_dump,
2727         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
2728         df_rd_free_bb_info, df_rd_alloc,
2729         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
2730         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
2731         df_rd_transfer_function, df_rd_free, df_rd_dump,
2732         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
2733         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
2734         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
2735         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
2736         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
2737         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
2738         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
2739         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
2740         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
2741         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
2742         df_urec_mark_reg_change, df_urec_check_earlyclobber,
2743         df_urec_mark_reg_use_for_earlyclobber,
2744         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
2745         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
2746         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
2747         df_urec_dump, df_urec_add_problem, df_chain_alloc,
2748         df_chain_create_bb_process_use, df_chain_create_bb,
2749         df_chain_finalize, df_chain_free, df_chains_dump,
2750         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
2751         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
2752         df_reg_lifetime): New functions.
2753         * df.c: Deleted file.
2754         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
2755         consistent with new df api.
2756         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
2757         rest_of_handle_sms): Ditto.
2758         * web.c (unionfind_union, union_defs, entry_register, web_main):
2759         Ditto.
2760         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
2761         invariant_expr_equal_p, find_defs, check_dependencies,
2762         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
2763         free_inv_motion_data, move_loop_invariants): Ditto.
2764         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
2765         Update dependencies.
2766         (odf.c): Added defective entry that was deleted later in day.
2767         * sched-deps.c (sched_analyze_1): Ditto.
2768
2769 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
2770
2771         * tree-ssa-operands.c (get_expr_operands): Record addressable
2772         variables directly.  Do not call add_stmt_operands for CONST_DECLs
2773         and ARRAY_DECLs.
2774         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
2775         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
2776
2777 2006-01-11  Ben Elliston  <bje@au.ibm.com>
2778
2779         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
2780         function returns true in the positive case.
2781
2782 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2783
2784         PR target/20754
2785         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
2786         for SI, DI, SF and DF modes.  Add alternatives to copy between
2787         general and floating point registers to the 32-bit patterns.
2788         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
2789         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
2790         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
2791         generating 64-bit code.
2792         * config/pa/pa.c (output_move_double): Handle copies between general
2793         and floating registers.
2794
2795 2006-01-10  Stuart Hastings  <stuart@apple.com>
2796
2797         * config/i386/i386.md (set_got): Update.
2798         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
2799         (builtin_setjmp_receiver): Mach-O support.
2800         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
2801         (GOT_SYMBOL_NAME): Define.
2802         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
2803         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
2804         * config/i386/i386.c (override_options): Revise for Darwin.
2805         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
2806         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
2807         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
2808         * config/i386/i386-protos.h (output_set_got): Likewise.
2809         * config/darwin.c (machopic_legitimize_pic_address): Update
2810         regs_ever_live[].
2811
2812 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
2813
2814         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
2815         when MODE isn't BLKmode.
2816
2817 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
2818
2819         PR rtl-optimization/25367
2820         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
2821
2822 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
2823
2824         PR target/25718
2825         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
2826         for a negative bound.
2827
2828 2006-01-10  Richard Guenther  <rguenther@suse.de>
2829
2830         * tree-ssa-structalias.c (get_constraint_for_component_ref):
2831         Never override with anything constraint.
2832
2833 2006-01-10  Jan Beulich  <jbeulich@novell.com>
2834
2835         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
2836         256 bits when optimize_size.
2837
2838 2006-01-10  Jan Beulich  <jbeulich@novell.com>
2839
2840         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
2841         MASK_ALIGN_DOUBLE.
2842         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
2843         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
2844         arguments.
2845
2846 2006-01-10  Ben Elliston  <bje@au.ibm.com>
2847
2848         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
2849         float modes.
2850         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
2851         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
2852         (USE_FP_FOR_ARG): Reject decimal float modes.
2853         (function_arg_advance): Likewise.
2854         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
2855         (rs6000_handle_altivec_attribute): Do not permit decimal floating
2856         point types in AltiVec vectors.
2857         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
2858         (rs6000_libcall_value): Likewise.
2859
2860 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
2861
2862         * config/xtensa/ieee754-df.S: New file.
2863         * config/xtensa/ieee754-sf.S: New file.
2864         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
2865         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
2866         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
2867
2868 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
2869
2870         * config/sh/predicates.md (binary_float_operator,
2871         binary_logical_operator, commutative_float_operator,
2872         equality_comparison_operator, greater_comparison_operator,
2873         less_comparison_operator, logical_operator,
2874         noncommutative_float_operator, shift_operator,
2875         symbol_ref_operand, unary_float_operator): Remove redundant
2876         conditionals.
2877
2878 2006-01-09  Jeff Law  <law@redhat.com>
2879
2880         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
2881         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
2882         now unused arguments.  Callers updated.
2883         (eliminate_redundant_computations): Remove now unused arguments,
2884         callers updated.
2885         (local_fold): Remove, no longer used.
2886         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
2887         and moved to...
2888         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
2889         (simplify_cond): New function.
2890         (forward_propagate_into_cond): Call simplify_cond.
2891
2892 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
2893
2894         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
2895         (*vec_extractv2di_1_sse): New.
2896
2897 2006-01-09  Ben Elliston  <bje@au.ibm.com>
2898
2899         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
2900
2901 2006-01-08  Richard Guenther  <rguenther@suse.de>
2902
2903         * tree-ssa-structalias.c (get_constraint_for): Remove
2904         anyoffset argument.
2905         (get_constraint_for_component_ref): Likewise.
2906         (do_deref): Likewise.
2907         (get_constraint_for): Likewise.
2908         (do_structure_copy): Likewise.
2909         (handle_ptr_arith): Likewise.
2910         (find_func_aliases): Likewise.  Remove unused need_anyoffset
2911         variable.
2912
2913 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
2914             Kaz Kojima  <kkojima@gcc.gnu.org>
2915
2916         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
2917         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
2918         (EXTRA_CONSTRAINT_C16): Remove.
2919         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
2920         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
2921         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
2922         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
2923         constants of SHmedia.  Handle nested constant expressions of
2924         SHmedia correctly.
2925         (andcosts): Fix the costs for SHmedia constants.
2926         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
2927         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
2928         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
2929         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
2930         (movv4hi_i, movv2si_i): Likewise.
2931         (movsi_const): Adjust the second operand of ior so to match with
2932         the Csu constraint.
2933         (movdi_const, movdi_const_32bit): Likewise.
2934         (movdi_const_16bit+1): Don't sign-extend LOW.
2935         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
2936         step.
2937         (*double_shori): Fix the split condition.  Use GEN_INT instead
2938         of get_int_mode calls.  Mask lower 16-bit of the argument of
2939         the last GEN_INT.
2940         (sym2GOTPLT): Remove.
2941         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
2942         gen_rtx_UNSPEC.
2943         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
2944         instead of EXTRA_CONSTRAINT_C16.
2945
2946 2006-01-07  Ian Lance Taylor  <ian@airs.com>
2947             David Edelsohn  <edelsohn@gnu.org>
2948
2949         PR rtl-optimization/25662
2950         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
2951         for constant operands instead of simplify_gen_binary.
2952         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
2953         after trying simplify_binary_operation
2954
2955 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
2956
2957         * tree.c (iterative_hash_expr): Hash decls based on UID.
2958
2959 2006-01-06  Eric Christopher  <echristo@apple.com>
2960
2961         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
2962         (TARGET_UNWIND_EMIT): Fix spelling.
2963         * target.h (gcc_target): Add except_table_label.
2964         * except.c (output_function_exception_table): Use.
2965         * varasm.c (default_emit_except_table_label): New.
2966         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
2967         define.
2968         (asm_out): Add here.
2969         * output.h (default_emit_except_table_label): Prototype.
2970         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
2971         * config/darwin.c (darwin_emit_except_table_label): Define.
2972         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
2973
2974 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
2975
2976         PR tree-optimization/18527
2977         * tree-ssa-loop-niter.c (number_of_iterations_cond,
2978         number_of_iterations_special, number_of_iterations_exit):
2979         Move base and step of an iv to a single structure.  Add
2980         no_overflow flag, and use it in # of iterations analysis.
2981         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
2982         folded_casts argument.
2983         (simple_iv): Pass base and step in a structure.  Set no_overflow
2984         flag.
2985         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
2986         Evaluate expensiveness of computing # of iterations instead of
2987         the final expression.
2988         * tree-scalar-evolution.h (affine_iv): New structure.
2989         (simple_iv): Declaration changed.
2990         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
2991         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
2992         find_givs_in_stmt): Changed due to simple_iv change.
2993
2994 2006-01-06  Jeff Law  <law@redhat.com>
2995
2996         PR ada/24994
2997         * tree-cfg.c (bsi_replace): Rename final argument from
2998         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
2999         change (stmt -> orig_stmt).
3000         * tree-eh.c (verify_eh_throw_stmt_node): New function.
3001         (bsi_remove): Add new argument.  Remove EH information
3002         if requested.
3003         (verify_eh_throw_table_statements): New function.
3004         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
3005         updated.
3006         * tree-optimize.c (execute_free_cfg_annotations): Verify
3007         the EH throw statement table after removing annotations.
3008         * except.h (verify_eh_throw_table_statements): Prototype.
3009         * tree-flow.h (bsi_remove): Update prototype.
3010         * tree-vrp.c (remove_range_assertions): Add new argument to
3011         bsi_remove call.
3012         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
3013         * tree-complex.c (expand_complex_div_wide): Likewise.
3014         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
3015         * tree-tailcall.c (eliminate_tailcall): Likewise.
3016         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
3017         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
3018         * tree-nrv.c (tree_nrv): Likewise.
3019         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
3020         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
3021         (combine_blocks): Likewise.
3022         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
3023         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
3024         (cleanup_control_flow): Likewise.
3025         (remove_forwarder_block): Likewise.
3026         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
3027         * tree-sra.c (sra_replace): Likewise.
3028         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
3029         (forward_propagate_single_use_vars): Likewise.
3030         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
3031         * tree-inline.c (expand_call_inline): Likewise.
3032         * tree-vect-transform.c (vect_transform_loop): Likewise.
3033         * tree-outof-ssa.c (rewrite_trees): Likewise.
3034         * tree-cfg.c (make_goto_expr_edges): Likewise.
3035         (cleanup_dead_labels): Likewise.
3036         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
3037         (bsi_move_before, bsi_move_after): Likewise.
3038         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
3039         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
3040
3041 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
3042
3043         PR tree-opt/25528
3044         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
3045         and IMAGPART_EXPR.
3046         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
3047         on non gimple variables.  Also add checks at the top for decls and
3048         mtags.
3049         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
3050         complex types.
3051         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
3052         and IMAGPART_EXPR for creating MUST_DEFs.
3053         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
3054         and NAME_MEMORY_TAG separately from the DECLs.
3055
3056 2006-01-06  Richard Guenther  <rguenther@suse.de>
3057
3058         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
3059         annotation, if necessary.
3060         * tree-ssa-pre.c (create_expression_by_pieces): Remove
3061         redundant calls to update_stmt.
3062         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
3063         Likewise.
3064
3065 2006-01-05  Richard Henderson  <rth@redhat.com>
3066
3067         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
3068
3069 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
3070
3071         * c-typeck.c: Update copyright date.
3072
3073 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
3074
3075         * c-typeck.c (build_c_cast): Always warn when casting
3076         from a pointer to an integer of different size, even if
3077         the node was constant.
3078
3079 2006-01-05  Richard Guenther  <rguenther@suse.de>
3080
3081         PR tree-optimization/22555
3082         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
3083         if one structure field is an array.
3084         * tree-ssa-operands.c (get_expr_operands): Continue scanning
3085         operands even if we found a subvar, but ignore VOPs in this
3086         case.
3087         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
3088         for renaming.
3089         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
3090
3091 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
3092
3093         PR middle-end/24998
3094         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
3095
3096 2006-01-05  Richard Guenther  <rguenther@suse.de>
3097             Diego Novillo  <dnovillo@redhat.com>
3098
3099         * tree-pass.h (TODO_remove_unused_locals): Define.
3100         * gimple-low.c (expand_var_p, remove_useless_vars,
3101         pass_remove_useless_vars): Remove.  Update all users.
3102         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
3103         (remove_unused_locals): New function.
3104         * tree-flow.h (remove_unused_locals): Declare.
3105         * passes.c (execute_todo): Call remove_unused_locals if
3106         TODO_remove_unused_locals is set.
3107         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
3108         * tree-ssa-dce.c (pass_dce): Likewise.
3109         * tree-outof-ssa.c (pass_del_ssa): Likewise.
3110
3111 2006-01-05  Richard Guenther  <rguenther@suse.de>
3112
3113         * tree-flow.h (struct fieldoff): Decompose field to
3114         type, size and decl.
3115         * tree-ssa-alias.c (create_sft): Take type as parameter.
3116         (create_overlap_variables_for): Store type, size and decl
3117         in the fieldoff structure.
3118         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
3119         of struct fieldoff.
3120         (push_fields_onto_fieldstack): Likewise.
3121         (create_variable_info_for): Likewise.  Use offset for the
3122         SFT name if the decl is not available.
3123
3124 2006-01-04  Paul Brook  <paul@codesourcery.com>
3125
3126         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
3127
3128 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
3129
3130         * lambda-code.c (can_put_in_inner_loop): Relax
3131         restrictions.
3132         (can_put_after_inner_loop): New function.
3133         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
3134         (perfect_nestify): Change to make copies and modify uses.
3135
3136 2006-01-04  Richard Henderson  <rth@redhat.com>
3137
3138         Merge from gomp branch:
3139         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
3140         via integer constant.
3141         (pragma_lex): Remove.
3142         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
3143         rather than parsing it.
3144         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
3145         handle_pragma_extern_prefix): Add %< %> quotes.
3146         (registered_pragmas): New.
3147         (c_register_pragma_1): New.
3148         (c_register_pragma): Use it.
3149         (c_register_pragma_with_expansion): Likewise.
3150         (c_invoke_pragma_handler): New.
3151         (init_pragma): Use cpp_register_deferred_pragma directly for
3152         pch_preprocess.
3153         * c-pragma.h (enum pragma_kind): New.
3154         (pragma_handler): New.
3155         (c_invoke_pragma_handler): Declare.
3156         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
3157         CPP_PRAGMA_EOL.
3158         * c-common.h (c_common_pch_pragma): Update decl.
3159         * Makefile.in (c-parser.o): Update dependencies.
3160         (GTFILES): Add c-pragma.h.
3161         * c-parser.c (struct c_token): Add pragma_kind.
3162         (struct c_parser): Add in_pragma.
3163         (c_lex_one_token): Always initialize keyword and pragma_kind.
3164         Extract data for CPP_PRAGMA.
3165         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
3166         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
3167         Don't allow CPP_PRAGMA_EOL if in_pragma.
3168         (c_parser_consume_pragma): New.
3169         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
3170         (c_parser_skip_to_end_of_parameter): Likewise.
3171         (c_parser_skip_to_end_of_block_or_statement): Likewise.
3172         (c_parser_skip_to_pragma_eol): New.
3173         (c_parser_external_declaration): Handle CPP_PRAGMA.
3174         (c_parser_compound_statement_nostart): Likewise.
3175         (c_parser_statement_after_labels): Likewise.
3176         (c_parser_pragma): New.
3177         (pragma_lex): Likewise.
3178         (c_parser_pragma_pch_preprocess): New.
3179         (c_parser_new): Merge into ...
3180         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
3181
3182 2006-01-04  Jeff Law  <law@redhat.com>
3183
3184         PR ada/24994
3185         * tree-cfg.c (bsi_replace): Remove the original statement
3186         from the EH throw statement table.
3187
3188 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
3189
3190         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
3191         make the prototype extern "C" and add throw ().
3192
3193         PR target/25554
3194         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
3195         and pos non-negative and pos + len <= 32.
3196         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
3197         drop pos + len < HOST_BITS_PER_WIDE_INT test.
3198         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
3199
3200         PR c/25559
3201         * c-common.c (handle_vector_size_attribute): Reject zero vector size
3202         as well as sizes not multiple of component size.
3203
3204         PR debug/25562
3205         * function.c (instantiate_expr): New function.
3206         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
3207         walk its DECL_VALUE_EXPR with instantiate_expr.
3208
3209         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
3210         DW_OP_deref{,_size} if address isn't going to be added.
3211
3212 2006-01-04  Ben Elliston  <bje@au.ibm.com>
3213
3214         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
3215         * config/fp-bit.c: Likewise.
3216
3217 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
3218
3219         * dominance.c: Add comment about why we use DFS numbering
3220         of dominance tree.
3221
3222 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
3223             Richard Henderson  <rth@redhat.com>
3224
3225         Merge from gomp-branch:
3226         * varasm.c (assemble_variable): Handle thread-local COMMON data.
3227         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
3228
3229 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
3230
3231         PR rtl-optimization/25578
3232         * combine.c (combine_simplify_rtx, force_to_mode): Don't
3233         pass a parameter to simplify_shift_const if changing ASHIFTRT
3234         to LSHIFTRT.
3235
3236 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
3237
3238         * builtins.c (get_builtin_sync_mem): New function.
3239         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
3240         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
3241         Call get_builtin_sync_mem to generate mem rtx.
3242
3243 2006-01-03  Richard Guenther  <rguenther@suse.de>
3244
3245         PR c/25183
3246         * stmt.c (add_case_node): Make sure to clear overflow flags
3247         from ranges.
3248
3249 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
3250
3251         Merge from gomp-branch.
3252         * config/sparc/sync.md: New file.
3253         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
3254         UNSPECV_LDSTUB): New constants.
3255         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
3256         * config/sparc/predicates.md (memory_reg_operand): New predicate.
3257         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
3258         prototype.
3259
3260 2006-01-03  Roger Sayle  <roger@eyesopen.com>
3261
3262         * combine.c (reg_subword_p): New predicate to test whether the
3263         destination of a set refers to a subword/piece of a register.
3264         (try_combine): Generalize the code to merge the setting of a
3265         pseudo to a constant followed by a set of a subword of that
3266         register to a constant.
3267
3268 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
3269
3270         * basic-block.h (control_flow_graph): Change the type of
3271         x_label_to_block_map to VEC(basic_block,gc) *.
3272         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
3273         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
3274
3275         * tree-ssa-propagate.c (cfg_blocks): Change the type to
3276         VEC(basic_block,heap) *.
3277         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
3278         ssa_prop_fini): Adjust the uses of cfg_blocks.
3279
3280 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
3281
3282         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
3283         COMPONENT_REFs.
3284         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
3285         hashing trees instead of a pointer hash.
3286         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
3287         compare for MEM_EXPR.
3288
3289         PR rtl-optimization/25130
3290         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
3291         when comparing MEMs for GCSE
3292
3293 2006-01-03  Ben Elliston  <bje@au.ibm.com>
3294
3295         * targhooks.h (default_decimal_float_supported_p): Declare.
3296         * targhooks.c (default_decimal_float_supported_p): Define.
3297         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
3298         `default_decimal_float_supported_p'.
3299         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
3300
3301 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
3302
3303         * combine.c (apply_distributive_law <SUBREG>): Check
3304         TRULY_NOOP_TRUNCATION.
3305
3306 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
3307
3308         * dwarf2out.c (have_switched_text_section): Delete.
3309         (have_multiple_function_sections): New.
3310         (have_location_lists): Make 'bool'.
3311         (add_AT_loc_list): Use 'true' not '1'.
3312         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
3313         (output_loc_list): Use have_multiple_function_sections.
3314         (output_ranges): Likewise.
3315         (dwarf2out_begin_function): Set have_multiple_function_sections if
3316         necessary.
3317         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
3318         Check function_section rather than DECL_SECTION_NAME.
3319         (dwarf2out_finish): Use have_multiple_function_sections.
3320         Don't clear have_location_lists.
3321
3322 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
3323             Jan Hubicka  <jh@suse.cz>
3324
3325         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
3326         case of conditional jump jumping to the next instruction.
3327         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
3328         cases of conditional jump jumping to the next instruction.
3329
3330 2006-01-02  Jan Hubicka  <jh@suse.cz>
3331
3332         * i386.c (*_cost): Add COSTS_N_INSNS.
3333         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
3334
3335 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
3336
3337         PR target/25259
3338         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
3339
3340 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
3341
3342         * config/arm/arm.c (all_fpus): Fix comment typo.
3343         * config/darwin.c: Likewise.
3344         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
3345         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
3346         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
3347
3348 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
3349
3350         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
3351         (rs6000_split_compare_and_swapqhi): New.
3352         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
3353         (sync_compare_and_swapqhi_internal): New.
3354         * config/rs6000/rs6000-protos.h: Declare.