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