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