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Introduce TLS descriptors for i386 and x86_64.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
2
3         Introduce TLS descriptors for i386 and x86_64.
4         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
5         (TARGET_ANY_GNU_TLS): New macro.
6         (enum tls_dialect): Added TLS_DIALECT_GNU2.
7         (struct machine_function): Add tls_descriptor_call_expanded_p.
8         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
9         (ix86_current_function_calls_tls_descriptor): Likewise.
10         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
11         (override_options): Introduce gnu2 tls dialect.
12         (ix86_frame_pointer_required): Functions containing TLSCALLs are
13         not leaves.
14         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
15         Likewise.
16         (legitimize_tls_address): Adjust logic for GNU2 TLS.
17         (ix86_init_machine_status): Initialize new field.
18         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
19         (ix86_tls_module_base): New.
20         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
21         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
22         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
23         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
24         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
25         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
26         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
27         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
28         * config/i386/predicates.md (tls_modbase_operand): New.
29         (tp_or_register_operand): New.
30
31 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
32
33         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
34         (look_for_address_of): Ditto.
35         (ipa_init): Walk the function decls.
36         (static_execute): Don't set readonly on FUNCTION_DECL's.
37
38 2006-01-18  Roger Sayle  <roger@eyesopen.com>
39
40         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
41         for shifts where the source and destination registers are different.
42
43 2006-01-18  Paul Brook  <paul@codesourcery.com>
44
45         Merge from csl-arm-branch.
46         2005-03-14  Julian Brown  <julian@codesourcery.com>
47         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
48         (aeabi_llsl): Likewise.
49         (ashrdi3): Likewise.
50         (aeabi_lasr): Likewise.
51         (lshrdi3): Likewise.
52         (aeabi_llsr): Likewise. 
53         2005-03-10  Julian Brown  <julian@codesourcery.com>
54         * config.gcc: Disable shared libgcc for SymbianOS.
55         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
56
57 2006-01-18  DJ Delorie  <dj@redhat.com>
58
59         * c-pragma.c (handle_pragma_diagnostic): New.
60         (init_pragma): Register it.
61         * doc/extend.texi: Document it.
62
63         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
64         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
65         (diagnostic_context): Add classify_diagnostic[].
66         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
67         as errors if they're overridden to DK_WARNING.
68         (diagnostic_initialize): Initialize classify_diagnostic[].
69         (diagnostic_set_kind_override): New.
70         (diagnostic_report_diagnostic): Check for kind changes.
71         * opts.c (common_handle_option): Take lang_mask.  Update callers.
72         Handle OPT_Werror_.
73         * common.opt (Werror=): New.
74         * doc/invoke.texi: Document -Werror=*
75
76 2006-01-18  Jeff Law  <law@redhat.com>
77
78         * tree-vrp.c (test_for_singularity): Correct test for new
79         min limit.  Use operand_equal_p rather than pointer equality
80         for testing if new min/max values are equal.
81
82         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
83         using range information until after propagation and folding.
84
85 2006-01-18  Richard Henderson  <rth@redhat.com>
86             Aldy Hernandez  <aldyh@redhat.com>
87             Jakub Jelinek  <jakub@redhat.com>
88             Diego Novillo  <dnovillo@redhat.com>
89
90         * omp-low.c: New file.
91         * c-omp.c: New file.
92
93 2006-01-18  Richard Henderson  <rth@redhat.com>
94             Jakub Jelinek  <jakub@redhat.com>
95             Diego Novillo  <dnovillo@redhat.com>
96
97         * doc/invoke.texi: Document -fopenmp.
98         * tree-dump.h (debug_function): Declare.
99         * hooks.c (hook_bool_tree_bool_false): New function.
100         (hook_tree_tree_null): Remove.
101         (hook_tree_tree_tree_null): New.
102         * hooks.h: Update to match.
103         * tree-pretty-print.c (debug_tree_chain): New.
104         (print_generic_expr): Handle TDF_CHAIN.
105         (dump_generic_node): Handle BLOCK.
106         Do not abort with incomplete SWITCH_EXPRs.
107         Do not dump body of an OpenMP directive if TDF_SLIM is given.
108         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
109         print space after directive name.
110         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
111         Handle OMP_MASTER and OMP_ORDERED.
112         Handle printing of OMP_BODY just in one place, goto
113         dump_omp_body in the rest of OMP_* nodes that have
114         OMP_BODY.
115         Don't handle clause nodes here.  Update omp statements to
116         use dump_omp_clauses.
117         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
118         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
119         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
120         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
121         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
122         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
123         Adjust output for GOMP_PARALLEL.
124         (dump_omp_clauses): New.
125         (print_declaration): Dump DECL_VALUE_EXPR.
126         (op_symbol_1): Split out of op_symbol.
127         (dumping_stmts): Remove.  Update all users.
128         * cgraph.c (cgraph_analyze_queue): New.
129         (cgraph_add_new_function): New.
130         * cgraph.h (cgraph_analyze_queue): Declare.
131         (cgraph_add_new_function): Declare.
132         (cgraph_lower_function): Remove.
133         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
134         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
135         and TYPE_P nodes in its default clause.
136         (empty_body_p): New.
137         (tree_range_check_failed): New.
138         (build5_stat): New.
139         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
140         OMP_CLAUSE_REDUCTION_MERGE,
141         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
142         OMP_CLAUSE_PRIVATE_DEBUG,
143         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
144         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
145         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
146         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
147         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
148         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
149         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
150         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
151         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
152         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
153         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
154         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
155         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
156         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
157         (TREE_RANGE_CHECK): New.
158         (empty_body_p): Declare.
159         (enum omp_clause_default_kind): New.
160         (build_string_literal): Declare.
161         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
162         (build5_stat, build5): Declare.
163         * tree-pass.h (TDF_CHAIN): Define.
164         * tree-pass.h (PROP_gimple_lomp): Define.
165         (pass_lower_omp): Declare.
166         * diagnostic.h (debug_tree_chain): Declare.
167         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
168         mode_for_size.
169         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
170         * builtins.c (build_string_literal): Make extern.
171         * gcc.c (include_spec_function): New.
172         (static_spec_functions): Add it.
173         (main): Move load of libgomp.spec ...
174         (LINK_COMMAND_SPEC): ... here.
175         (link_gomp_spec): New.
176         (static_specs): Include it.
177         (LINK_COMMAND_SPEC): Add link_gomp.
178         (GOMP_SELF_SPECS): New.
179         (driver_self_specs): Include it.
180         (switch_matches): Don't mark inline.
181         (main): Load libgomp.spec.
182         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
183         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
184         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
185         * tree-gimple.h (enum omp_parallel): Declare.
186         (determine_parallel_type): Declare.
187         (omp_firstprivatize_variable): Declare.
188         (omp_reduction_init): Declare.
189         (diagnose_omp_structured_block_errors): Declare.
190         (struct walk_stmt_info): Add want_return_expr.
191         (struct walk_stmt_info): Add want_bind_expr, want_locations.
192         (find_omp_clause): Declare.
193         (insert_field_into_struct): Declare.
194         (struct walk_stmt_info): Move from tree-nested.c
195         (walk_stmts): Declare.
196         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
197         to 200505.
198         * cgraphunit.c (cgraph_lower_function): Make static.
199         (cgraph_finalize_pending_functions): New.
200         (cgraph_finalize_function): Call it.
201         (cgraph_finalize_compilation_unit): Likewise.
202         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
203         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
204         (BT_FN_UINT_UINT): New.
205         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
206         DEF_FUNCTION_TYPE_VAR_4): Document.
207         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
208         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
209         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
210         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
211         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
212         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
213         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
214         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
215         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
216         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
217         into separate files.
218         (DEF_GOMP_BUILTIN): New.
219         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
220         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
221         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
222         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
223         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
224         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
225         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
226         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
227         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
228         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
229         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
230         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
231         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
232         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
233         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
234         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
235         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
236         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
237         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
238         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
239         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
240         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
241         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
242         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
243         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
244         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
245         * sync-builtins.def: New file, moved from builtins.def.
246         * omp-builtins.def: New file, moved from builtins.def.
247         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
248         * gimple-low.c (lower_function_body): Clear data.
249         (lower_stmt): Do not handle COMPOUND_EXPR.
250         Remove call to print_node_brief.
251         * c-tree.h (c_finish_omp_clauses): New prototype.
252         (C_DECL_THREADPRIVATE_P): Define.
253         (lookup_name_no_remap, c_omp_remap_private): Remove
254         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
255         (check_for_loop_decls): Update decl.
256         (lookup_name_no_remap, c_omp_remap_private): Declare.
257         (build_indirect_ref, build_modify_expr, pushdecl,
258         pushdecl_top_level): Move to c-common.h.
259         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
260         before the switch, but just in the 2 places that need it.
261         * c-decl.c (diagnose_mismatched_decls): Do not check for
262         mismatched thread-local attributes when OLDDECL is marked
263         threadprivate and NEWDECL has no thread-local attributes.
264         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
265         (c_gimple_diagnostics_recursively): Rename from
266         c_warn_unused_result_recursively.  Invoke
267         diagnose_omp_structured_block_errors.
268         (check_for_loop_decls): Return a singular decl found.
269         * langhooks.c (lhd_omp_predetermined_sharing): Return
270         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
271         (lhd_omp_firstprivatize_type_sizes): New.
272         (lhd_omp_assignment): New.
273         (lhd_omp_predetermined_sharing): New.
274         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
275         (struct lang_hooks_for_types): Add
276         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
277         omp_predetermined_sharing, omp_disregard_value_expr,
278         omp_private_debug_clause, omp_clause_default_ctor,
279         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
280         (c_finish_omp_clauses): New.
281         (c_finish_bc_stmt): Diagnose break within omp for.
282         (c_begin_omp_parallel, c_finish_omp_parallel): New.
283         (build_unary_op): Return error_mark after reporting
284         a readonly_error.
285         (build_modify_expr): Likewise.
286         * gimplify.c: Include optabs.h and pointer-set.h.
287         (enum gimplify_omp_var_data): Declare.
288         (struct gimplify_omp_ctx): Declare.
289         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
290         and combined_ctxp.
291         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
292         (push_gimplify_context, pop_gimplify_context): Allow nesting.
293         (splay_tree_compare_decl_uid): New.
294         (new_omp_context): New.
295         (delete_omp_context): New.
296         (gimple_add_tmp_var): Call omp_add_variable.
297         (gimplify_bind_expr): Likewise.
298         (gimplify_var_or_parm_decl): If omp_notice_variable returned
299         true, disregard DECL_VALUE_EXPR on the decl if any.
300         (gimplify_expr_in_ctx): New.
301         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
302         omp_add_variable, omp_notice_variable, omp_is_private
303         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
304         gimplify_adjust_omp_clauses, gimplify_omp_parallel
305         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
306         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
307         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
308         gimplify_omp_atomic): New.
309         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
310         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
311         OMP_CRITICAL and OMP_ATOMIC.
312         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
313         * c-pragma.h (enum pragma_kind): Add
314         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
315         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
316         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
317         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
318         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
319         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
320         PRAGMA_OMP_THREADPRIVATE.
321         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
322         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
323         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
324         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
325         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
326         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
327         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
328         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
329         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
330         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
331         * tree-ssa-dce.c (find_control_dependence): Do not assume that
332         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
333         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
334         OpenMP directives.
335         (struct nesting_info): Add field_map,
336         suppress_expansion, debug_var_chain.
337         (create_nesting_tree): Initialize them.
338         (lookup_field_for_decl): Use field_map.
339         (get_nonlocal_debug_decl, get_local_debug_decl): New.
340         (convert_local_omp_clauses): New.
341         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
342         (walk_body): Split out of walk_function.
343         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
344         (convert_nonlocal_reference): Handle omp statements.
345         (convert_local_reference): Likewise.
346         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
347         (unnest_nesting_tree): New.
348         (lower_nested_functions): Call it.
349         (insert_field_into_struct): Make extern.
350         (struct walk_stmt_info): Move to tree-gimple.h.
351         (walk_stmts): Make extern.
352         * omp-builtins.def: New file.
353         * tree-iterator.c (expr_only): Clarify comment.
354         * c-common.h (pushdecl_top_level, pushdecl,
355         build_modify_expr, build_indirect_ref,
356         c_finish_omp_master, c_finish_omp_critical,
357         c_finish_omp_ordered, c_finish_omp_barrier,
358         c_finish_omp_atomic, c_finish_omp_flush,
359         c_finish_omp_for, c_split_parallel_clauses,
360         omp_clause_default_kind, c_omp_sharing_predetermined,
361         c_omp_remap_decl): Declare.
362         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
363         (OBJS-common): Add omp-low.o.
364         (c-omp.o, omp-low.o): Add.
365         (gimplify.o): Add dependency on $(OPTABS_H).
366         (GTFILES): Add omp-low.c.
367         (gt-stringpool.h): Add.
368         * tree-cfg.c (set_bb_for_stmt): Do not update the
369         block-to-labels map if we are currently expanding to RTL.
370         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
371         checks.
372         Handle IDENTIFIER_NODE.
373         (tree_verify_flow_info): Do not ICE when emitting error
374         messages about invalid labels.
375         (dump_function_to_file): Reset CFUN before emitting the body
376         of the function.
377         (debug_function): New.
378         * passes.c (init_optimization_passes): Schedule
379         pass_lower_omp.
380         * langhooks-def.h (lhd_omp_predetermined_sharing,
381         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
382         Declare.
383         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
384         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
385         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
386         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
387         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
388         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
389         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
390         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
391         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
392         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
393         (LANG_HOOK_DECLS): Use them.
394
395 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
396             Richard Henderson  <rth@redhat.com>
397             Jakub Jelinek  <jakub@redhat.com>
398             Diego Novillo  <dnovillo@redhat.com>
399
400         * c-parser.c (pragma_omp_clause): Define.
401         (c_parser_declaration_or_fndef): Document OpenMP syntax.
402         (c_parser_compound_statement): Likewise.
403         (c_parser_statement): Likewise.
404         (c_parser_pragma): Handle omp pragmas.
405         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
406         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
407         (c_parser_omp_clause_name, check_no_duplicate_clause,
408         c_parser_omp_variable_list,
409         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
410         c_parser_omp_clause_copyprivate,
411         c_parser_omp_clause_default,
412         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
413         c_parser_omp_clause_lastprivate,
414         c_parser_omp_clause_nowait,
415         c_parser_omp_clause_num_threads,
416         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
417         c_parser_omp_clause_reduction,
418         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
419         c_parser_omp_all_clauses, c_parser_omp_structured_block,
420         c_parser_omp_atomic, c_parser_omp_barrier,
421         c_parser_omp_critical, c_parser_omp_flush,
422         c_parser_omp_for_loop, c_parser_omp_for,
423         c_parser_omp_master, c_parser_omp_ordered,
424         c_parser_omp_sections_scope, c_parser_omp_sections,
425         c_parser_omp_parallel, c_parser_omp_single,
426         c_parser_omp_construct, c_parser_omp_threadprivate): New.
427         * c-pragma.c (init_pragma): Do omp pragma registration here.
428         * c.opt (fopenmp): New flag.
429
430 2006-01-18  Eric Christopher  <echristo@apple.com>
431
432         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
433         * config/darwin.h (GOMP_SELF_SPECS): Define.
434
435 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
436
437         * rtl.h: Remove the prototype for reg_alloc.
438
439 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
440
441         PR target/25731
442         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
443         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
444         sjlj and dwarf2 exception handling.
445         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
446         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
447         * pa/pa.c (function_value): Treat complex and vector types as
448         aggregates.
449         (function_arg): Likewise.  Only pass scalar floats in the floating
450         point argument registers.
451         * pa/t-slibgcc-dwarf-ver: New file.
452         * pa/t-slibgcc-sjlj-ver: New file.
453         * pa/t-slibgcc-elf-ver: Delete file.
454
455 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
456
457         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
458         unlikely_test_section_p test.
459
460 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
461
462         * mode-switching.c (optimize_mode_switching): Make it static.
463         * basic-block.h: Remove the prototype for
464         optimize_mode_switching.
465
466         * modulo-sched.c (sms_schedule): Make it static.
467         * rtl.h: Remove the prototype for sms_schedule.
468
469         * postreload-gcse.c (gcse_after_reload_main): Make it static.
470         * rtl.h: Remove the prototype for gcse_after_reload_main.
471
472         * reg-stack.c (reg_to_stack): Make it static.
473         * rtl.h: Remove the prototype for reg_to_stack.
474
475         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
476         Make them static.
477         * rtl.h: Remove the prototypes for regrename_optimize and
478         copyprop_hardreg_forward.
479
480 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
481
482         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
483         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
484         Test against the appropriate null constant for the mode.
485         If 'fixup_overlap' is true, swap the operands if they overlap.
486         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
487         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
488         alpha_split_tmode_pair and adjust for above change.
489         * config/alpha/alpha.md (movtf_internal): Adjust call to
490         alpha_split_tfmode_pair and rely on it to swap the operands.
491         (movti_internal): New insn and post-reload splitter.
492         (movti): New expander.
493
494 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
495
496         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
497         operands.
498
499 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
500
501         * rtlanal.c (global_reg_mentioned_p_1,
502         global_reg_mentioned_p): Remove.
503         * rtl.h: Remove the prototype for global_reg_mentioned_p.
504
505         * flow.c (initialize_uninitialized_subregs): Make it static.
506         * rtl.h: Remove the prototype for
507         initialize_uninitialized_subregs.
508
509         * function.c (instantiate_virtual_regs): Make it static.
510         * function.h: Remove the prototype for
511         instantiate_virtual_regs.
512
513         * regmove.c (regmove_optimize, combine_stack_adjustments):
514         Make them static.
515         * rtl.h: Remove the prototypes for regmove_optimize and
516         combine_stack_adjustments.
517
518 2006-01-17  Roger Sayle  <roger@eyesopen.com>
519
520         * config/i386/i386.c (COSTS_N_BYTES): New macro.
521         (size_cost): Encode costs in bytes so that a reg-reg addition is
522         equivalent to COSTS_N_INSNS(1).
523         (override_options): Use the size_cost.branch_cost as the default
524         ix86_branch_cost when optimizing for size.
525
526 2006-01-18  Ben Elliston  <bje@au.ibm.com>      
527
528         * Makefile.in (D32PBIT_FUNCS): New.
529         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
530         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
531         D64PBIT_FUNCS and D128PBIT_FUNCS.
532         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
533         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
534         D128PBIT are set.
535         (decnumber_dep): Define.
536         * doc/libgcc.texi (Decimal float library routines): New node.
537         * config/dfp-bit.h, config/dfp-bit.c: New files.
538
539 2006-01-18  Ben Elliston  <bje@au.ibm.com>      
540
541         * expr.c (emit_move_change_mode): Always adjust addresses, not
542         just during reload.  Copy replacements only during reload.
543         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
544         emit_move_via_integer.
545
546 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
547
548         * Makefile.in (check-%, check-consistency): Use $${srcdir}
549         instead of $(srcdir) and ${srcdir}.
550
551 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
552
553         PR target/592
554         PR middle-end/11135
555         * arm.h (struct machine_function): Add pic_reg.
556         * arm.c (arm_pic_register): Make unsigned.
557         (arm_override_options): Only set arm_pic_register if
558         TARGET_SINGLE_PIC_BASE.
559         (use_return_insn): Only test for a pic register if it is fixed.
560         (arm_compute_save_reg0_reg12_mask): Likewise.
561         (thumb_compute_save_reg_mask): Likewise.
562         (legitimate_pic_operand): Factor out some known invariants.
563         (legitimize_pic_address): If we don't have a fixed pic register,
564         then set up a pseudo in the function entry sequence.  Handle the
565         pic base being in a pseudo.
566         (arm_load_pic_register): Handle the pic register being in a pseudo.
567         (arm_expand_prologue): Only set up the pic register if it is fixed.
568         (thumb_expand_prologue): Likewise.
569         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
570         (pic_load_addr_based_insn): Likewise.
571         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
572         fixed.
573
574 2006-01-18  Ben Elliston  <bje@au.ibm.com>
575
576         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
577         decimal float modes for all floating point registers.
578
579         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
580         match_code "mem" with match_test "macho_lo_sum_memory_operand".
581
582 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
583
584         PR c/25682
585         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
586         even when the pointer is not NULL.
587
588 2006-01-16  Ian Lance Taylor  <ian@airs.com>
589
590         * common.opt (ftoplevel-reorder): New option.
591         * cgraph.c (cgraph_asm_nodes): New global variable.
592         (cgraph_asm_last_node): New static variable.
593         (cgraph_order): New global variable.
594         (cgraph_create_node): Set new order field.
595         (cgraph_varpool_node): Likewise.
596         (decide_is_variable_needed): Return true if not
597         flag_toplevel_reorder.
598         (cgraph_add_asm_node): New function.
599         * cgraph.h (struct cgraph_node): Add order field.
600         (struct cgraph_varpool_node): Add order field.
601         (struct cgraph_asm_node): Define.
602         (cgraph_asm_nodes, cgraph_order): Declare.
603         (cgraph_add_asm_node): Declare.
604         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
605         function.
606         (cgraph_varpool_assemble_pending_decls): Call it.
607         (cgraph_output_pending_asms): New static function.
608         (cgraph_finalize_compilation_unit): Call it.
609         (struct cgraph_order_sort): Define.
610         (cgraph_output_in_order): New static function.
611         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
612         !flag_toplevel_reorder case.
613         * c-parser.c: Include "cgraph.h".
614         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
615         assemble_asm.
616         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
617         than -fno-unit-at-a-time.
618         * doc/invoke.texi (Option Summary): Mention
619         -fno-toplevel-reorder.
620         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
621         -funit-at-a-time documentation.
622
623 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
624             Kazu Hirata  <kazu@codesourcery.com>
625
626         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
627
628 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
629
630         * Makefile.in (FUNCTION_H): New.  Use it instead of
631         function.h throughout the file.
632         * function.h: Include tree.h.
633
634 2006-01-17  Ben Elliston  <bje@au.ibm.com>
635
636         * recog.c: Separate some functions with whitespace.
637
638 2006-01-16  Richard Henderson  <rth@redhat.com>
639
640         Merge from gomp branch:
641         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
642         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
643         and rename from struct inline_data.  Rename callee* to dst*; 
644         caller* to src*; add copy_decl hook, transform_call_graph_edges,
645         transform_new_cfg, transform_return_to_modify, and
646         transform_lang_insert_block flags; remove cloning_p, versioning_p,
647         update_clones_p.
648         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
649         (copy_decl_for_dup): Remove.
650         * tree-inline.c (struct inline_data): Move to header.
651         (insert_decl_map): Export.
652         (remap_decl): Update for member name changes.  Use copy_decl hook.
653         Allow for replacement to be a non-decl.  Remove dead code.
654         (remap_type_1): Check for existing mapping.
655         (remap_type): Export.
656         (remap_decls): Update for member name changes.
657         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
658         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
659         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
660         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
661         (tree_function_versioning, build_duplicate_type): Likewise.
662         (copy_body_r): Likewise.  Export.
663         (copy_decl_for_dup): Split into ...
664         (copy_decl_for_dup_finish, copy_decl_to_var,
665         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
666         (replace_ref_tree, inlining_p): Remove.
667
668 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
669
670         * ifcvt.c (if_convert): Make it static.
671         * rtl.h: Remove the prototype for if_convert.
672
673         * local-alloc.c (local_alloc): Make it static.
674         * rtl.h: Remove the prototype for local_alloc.
675
676         * loop.c (loop_optimize): Make it static.
677         * cfgloop.h: Remove the prototype for loop_optimize.
678         * rtl.h: Likewise.
679
680 2006-01-16  DJ Delorie  <dj@redhat.com>
681
682         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
683         mems.
684
685 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
686
687         * pa.md: Disparage copies between general and floating-point registers
688         in 32-bit move patterns.
689
690 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
691
692         PR testsuite/25741
693         * Makefile.in (check-%): Depend on site.exp instead of
694         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
695         directories.
696
697 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
698
699         * global.c (global_alloc): Make it static.
700         * rtl.h: Remove the prototype for global_alloc.
701
702 2006-01-16  Richard Guenther  <rguenther@suse.de>
703
704         * tree-ssa-alias.c (struct used_part): Add write_only field.
705         (get_or_create_used_part_for): Initialize it to true.
706         (create_overlap_variables_for): Don't create structure variables
707         for structures that only are written to.
708         (find_used_portions): Handle MODIFY_EXPR to track whether a
709         structure is only written to.
710
711 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
712
713         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
714         static.
715         * basic-block.h: Remove the prototype for
716         partition_hot_cold_basic_blocks.
717
718 2006-01-16  Rafael \81\81Ã\81vila de Esp\81\81Ã\81\81­ndola <rafael.espindola@gmail.com>
719
720         * cppspec.c (lang_specific_spec_functions): remove
721         * gcc.c (lookup_spec_function): use static_spec_functions directelly
722         * gcc.h (lang_specific_spec_functions): remove
723         * gccspec.c (lang_specific_spec_functions): remove
724
725 2005-01-16  Paolo Bonzini  <bonzini@gnu.org>
726
727         * combine.c (record_value_for_reg): Invalidate registers
728         if INSN is null.
729         (record_dead_and_set_regs_1): Likewise, by passing them to
730         record_value_for_reg.
731         (record_dead_and_set_regs): Invalidate stores made by a
732         call.  We do not combine across a call, but we still
733         relied on equivalences.
734
735 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
736
737         * tree-vrp.c (extract_range_from_binary_expr): Cope with
738         vrp_int_const_binop returning non-constant nodes.
739
740 2006-01-16  Paul Brook  <paul@codesourcery.com>
741
742         * config/m68k/m68k.c (output_move_const_into_data_reg):
743         Output correct mnemonic for mvz and mvs.
744
745 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
746
747         * rtl-factoring.c: Add sequence abstraction algorithm.
748         * cfgcleanup.c (outgoing_edges_match): Extra checks.
749         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
750         ABNORMAL edges.
751         (block_has_preserve_label): New function.
752         * common.opt: Register new pass.
753         * Makefile.in: Ditto.
754         * passes.c: Ditto.
755         * timevar.def: Ditto.
756         * tree-pass.h: Ditto.
757         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
758         * rtl.h (make_jump_insn_raw): Add forward decl.
759         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
760
761 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
762             Roger Sayle  <roger@eyesopen.com> 
763
764         * fold-const.c (fold_minmax): New static function.
765         (fold_binary) <MIN_EXPR>: Call it.
766         <MAX_EXPR>: Likewise.
767         * stor-layout.c (place_field): Use DECL_SIZE consistently
768         in the computation of the new record size.
769
770 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
771
772         * cse.c (cse_condition_code_reg): Make it static.
773         * rtl.h: Remove the prototype for cse_condition_code_reg.
774
775         * combine.c (combine_instructions): Make it static.
776         * rtl.h: Remove the prototype for combine_instructions.
777
778 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
779
780         PR target/25168
781         * tree.c (get_file_function_name_long): Concatenate the first global
782         object name with a string derived from the input filename of the object
783         for type "F".
784
785 2006-01-16  Ben Elliston  <bje@au.ibm.com>
786
787         * config/i386/winnt-stubs.c: Update FSF address.
788         * config/xtensa/ieee754-df.S: Ditto.
789         * config/xtensa/ieee754-sf.S: Ditto.
790
791 2006-01-14  Ian Lance Taylor  <ian@airs.com>
792
793         * ifcvt.c (noce_init_if_info): New static function, broken out of
794         noce_process_if_block.
795         (noce_process_if_block): Call noce_init_if_info.
796         (check_cond_move_block): New static function.
797         (cond_move_process_if_block): New static function.
798         (process_if_block): Call cond_move_process_if_block.
799
800 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
801
802         * cselib.c (hash_table): Rename to cselib_hash_table.
803         (cselib_clear_table, discard_useless_values,
804         remove_useless_values, cselib_lookup_mem, cselib_lookup,
805         cselib_init, cselib_finish): Adjust uses of hash_table.
806
807 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
808
809         PR tree-optimization/25485
810         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
811         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
812         is known to be false and true, respectively.
813
814 2006-01-14  Richard Guenther  <rguenther@suse.de>
815
816         PR tree-optimization/22548
817         PR tree-optimization/22555
818         PR tree-optimization/22501
819         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
820         * params.def (salias-max-array-elements): New parameter.
821         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
822         * doc/invoke.texi (salias-max-array-elements): Document.
823         * tree-flow-inline.h (var_can_have_subvars): We also handle
824         arrays now.
825         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
826         COMPONENT_REF.
827         * tree-ssa-structalias.c (params.h): Include.
828         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
829         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
830         (get_constraint_for): For ADDR_EXPR operating on something
831         containing an ARRAY_REF, add all subvars to the solution.
832         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
833         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
834         for creating MUST_DEFs.
835         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
836
837 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
838
839         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
840         functions.
841         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
842         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
843         number_of_iterations_le): New functions.
844         (number_of_iterations_special): Removed.
845         (number_of_iterations_exit): Do not use number_of_iterations_special.
846         * tree.c (unsigned_type_for): Always return integer type.
847
848 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
849         Richard Guenther  <rguenther@suse.de>
850
851         PR rtl-optimization/24257
852         * gcse.c (find_moveable_store): Only consider a store movable
853         when the SET_SRC of the insn can be assigned to a register.
854
855 2006-01-14  Ian Lance Taylor  <ian@airs.com>
856
857         * tree.c (tree_not_class_check_failed): New function.
858         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
859         (tree_not_class_check_failed): Declare.
860
861 2006-01-13  Ian Lance Taylor  <ian@airs.com>
862
863         * reload1.c (do_output_reload): Add assertion rejecting a
864         CALL_INSN.
865
866 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
867
868         * combine.c (struct reg_stat): Add new fields truncation_label and
869         truncated_to_mode.
870         (record_value_for_reg): Reset truncated_to_mode.
871         (record_truncated_value): New function.
872         (check_promoted_subreg): Call it.  Rename to check_conversions.
873         (combine_instructions): Rename check_promoted_subreg to
874         check_conversions.
875         (reg_truncated_to_mode): New function.
876         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
877         (gen_lowpart_or_truncate): New function.
878         (force_to_mode): Use it instead of gen_lowpart.
879
880 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
881
882         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
883         VAR is a tag, not its type tag.
884
885 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
886
887         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
888         alternatives to match style of other entries.
889         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
890
891 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
892
893         PR tree-optimization/25771
894         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
895         SSA_NAMES.
896
897 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
898
899         PR tree-opt/24365
900         * tree-inline.c (declare_return_variable): If the return variable
901         was marked as a non gimple complex, set the return slot variable
902         to be a non gimple comple variable.
903
904 2006-01-13  Richard Guenther  <rguenther@suse.de>
905
906         * builtins.c (expand_builtin_sincos): New function.
907         (expand_builtin_mathfn_3): Remove dead code, sin and cos
908         do not set errno.
909         (expand_builtin): Expand sincos using expand_builtin_sincos.
910
911 2006-01-12  DJ Delorie  <dj@redhat.com>
912
913         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
914         shift counts, separate SI shifts for m32c vs m16c, pass shift type
915         so that constant shifts can be split.
916         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
917         (m32c_valid_pointer_mode): Make static.
918         (shift_gen_func_for): New.
919         (m32c_prepare_shift): Use it.  Split large const shifts into
920         multiple shifts.
921         * config/m32c/predicates.md (shiftcount_operand): Allow more
922         general operands.
923         (longshiftcount_operand): New.
924         * doc/md.texi (Machine Constraints): Document In6.
925
926 2006-01-13  Ben Elliston  <bje@au.ibm.com>
927
928         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
929         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
930         documentation.
931
932 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
933
934         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
935         to try to avoid clobbering pieces of structures when we know
936         something about the whole structure.
937         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
938
939 2006-01-13  Ben Elliston  <bje@au.ibm.com>
940
941         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
942         return in memory, as this is no limitation is no longer present.
943
944 2006-01-12  DJ Delorie  <dj@redhat.com>
945
946         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
947         mova with fb, and for fb+0 -> An.
948
949         * config/m32c/mov.md (peephole2): Fix enabling logic.
950
951         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
952         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
953         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
954         FINI_ARRAY_SECTION_ASM_OP): Define.
955
956         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
957         variable.
958         (m32c_legitimize_reload_address): New logic to reload FB to An.
959         (m32c_output_reg_push): Add newline.
960         (m32c_output_reg_pop): Likewise.
961
962 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
963
964         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
965
966 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
967
968         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
969
970 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
971
972         * config/sh/predicates.md (sh_rep_vec): Add parallel to
973         match_code.
974
975 2006-01-11  Ben Elliston  <bje@au.ibm.com>
976
977         * rtlanal.c (find_reg_note): Assert insn is not null.
978
979 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
980
981         * df-scan.c (df_hard_reg_init): Move declaration of i outside
982         ifdef.
983
984 2006-01-11  Jeff Law  <law@redhat.com>
985
986         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
987         hold edge pairs.
988         (mark_threaded_blocks, register_jump_thread): New functions.
989         (thread_through_all_blocks): Remove unwanted argument.  No
990         longer rely on e->aux to communicate thread target info.
991         Call mark_threaded_blocks.  Release the threaded_blocks
992         bitmap and threaded_edges vector when complete.
993         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
994         (threaded_blocks): Remove.
995         (tree_ssa_dominator_optimize): Remove initialization and
996         finalization of threaded_blocks.  Simplify call to
997         thread_through_all_blocks.
998         (thread_across_edge): Call register_jump_thread rather than
999         storing thread information into e->aux.
1000         (free_all_edge_infos): Simplify now that e->aux is no longer
1001         used to communicate with thread_through_all_blocks.
1002         * tree-flow.h (thread_through_all_blocks): Update prototype.
1003         (register_jump_thread): Prototype.
1004         
1005 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
1006
1007         * df-core.c (df_compact_blocks, df_bb_replace): Use
1008         SET_BASIC_BLOCK instead of BASIC_BLOCK.
1009
1010 2006-01-11  Richard Guenther  <rguenther@suse.de>
1011
1012         PR tree-optimization/25734
1013         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
1014         stop propagation after successful propagation to the LHS.
1015
1016 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
1017
1018         * basic-block.h (control_flow_graph): Change the type of
1019         x_basic_block_info to VEC(basic_block,gc) *.
1020         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
1021         basic_block_info.
1022         (SET_BASIC_BLOCK): New.
1023         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
1024         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
1025         * cfgbuild.c (find_basic_blocks): Likewise.
1026         * cfglayout.c (fixup_reorder_chain): Likewise.
1027         * cfgrtl.c (create_basic_block_structure,
1028         rtl_create_basic_block): Likewise.
1029         * ifcvt.c (find_if_case_1): Likewise.
1030         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
1031         Likewise.
1032
1033 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
1034
1035         * Makefile.in: Removed rotted odf.c entry.
1036         
1037 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
1038
1039         PR target/25706
1040         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
1041         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
1042         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
1043         output pattern modifier, not %e.
1044         * config/cris/cris.c (cris_op_str): Update comment about pattern
1045         modifier.
1046         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
1047         before falling through into...
1048         <case 'E'>: Redefined from old 'e' case.
1049
1050 2006-01-11  Jan Hubicka  <jh@suse.cz>
1051
1052         PR target/25042
1053         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
1054
1055 2006-01-11  Jan Hubicka  <jh@suse.cz>
1056
1057         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
1058         * i386.c (x86_decompose_lea): Kill.
1059         (ix86_rtx_costs): Kill.
1060
1061 2006-01-11  Jan Hubicka  <jh@suse.cz>
1062
1063         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
1064         * cgraph.h (cgraph_node): Add inline_decl.
1065         (cgraph_insert_node_to_hashtable): Declare.
1066         (save_inline_function_body): Declare.
1067         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
1068         clones.
1069         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
1070         (cgraph_function_versioning): Update call of tree_function_versioning.
1071         (save_inline_function_body): New function.
1072         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
1073         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
1074         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
1075         (cgraph_default_inline_p): Likewise.
1076         (cgraph_decide_inlining_incrementally): Likewise.
1077         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
1078         (copy_bb): Kill saving; do updating of clones.
1079         (copy_cfg_body): Kill saving.
1080         (initialize_inlined-parameters): Likewise.
1081         (expand_call_inline): Likewise.
1082         (save_body): Kill.
1083         (tree_function_versioning): New parameter "update_clones".
1084         (inlining_p): Kill saving.
1085         * tree-inline.h (tree_function_versioning): Update prototype.
1086         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
1087         saving.
1088
1089 2006-01-11  Ian Lance Taylor <ian@airs.com>
1090
1091         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
1092         Allow undoing set of machine mode.
1093         (do_SUBST): Use enums instead of is_int.
1094         (do_SUBST_MODE): New function.
1095         (SUBST_MODE): New macro.
1096         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
1097         reg and trying to replace reg_regno_rtx with a new register.
1098         (undo_all): Use new enums, handle undoing a PUT_MODE change.
1099         (simplify_set): Use SUBST_MODE.
1100         (distribute_notes): Remove code that tried to update reg notes
1101         for regno_reg_rtx changes.
1102
1103 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
1104
1105         PR tree-optimization/23109
1106         PR tree-optimization/23948
1107         PR tree-optimization/24123
1108
1109         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
1110         * tree-cfg.c (single_noncomplex_succ): New.
1111         * tree-flow.h (single_noncomplex_succ): Declare it.
1112         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
1113         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
1114         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
1115         insert_bb, register_division_in, insert_reciprocals,
1116         replace_reciprocal, free_bb): New.
1117         (execute_cse_reciprocals_1): Rewritten.
1118         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
1119         Do not commit any edge insertion.  Always compute dominators and
1120         create the allocation pool.
1121         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
1122         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
1123         * targhooks.c (default_min_divistions_for_recip_mul): New.
1124         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
1125         * passes.c (init_optimization_passes): Run recip after tree loop
1126         optimizations.
1127         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
1128
1129 2005-01-11  Danny Berlin <dberlin@dberlin.org>
1130             Kenneth Zadeck <zadeck@naturalbridge.com>
1131
1132         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
1133         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
1134         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
1135         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
1136         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
1137         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
1138         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
1139         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
1140         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
1141         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
1142         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
1143         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
1144         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
1145         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
1146         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
1147         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
1148         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
1149         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
1150         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
1151         DF_SCAN_POST_ALLOC): New macros.
1152         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
1153         df_free_bb_function, df_local_compute_function, df_init_function,
1154         df_dataflow_function, df_confluence_function_0,
1155         df_confluence_function_n, df_transfer_function,
1156         df_finalizer_function, df_free_function, df_dump_problem_function,
1157         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
1158         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
1159         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
1160         df_urec_bb_info, ) New types.
1161         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
1162         variables.
1163         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
1164         df_analyze_simple_change_some_blocks,
1165         df_analyze_simple_change_one_block, df_compact_blocks,
1166         df_bb_replace, df_bb_regno_last_use_find,
1167         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
1168         df_insn_regno_def_p, df_find_def, df_find_use,
1169         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
1170         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
1171         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
1172         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
1173         debug_df_chain, df_get_dependent_problem, df_chain_create,
1174         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
1175         df_grow_bb_info, df_chain_dump, df_print_bb_index,
1176         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
1177         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
1178         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
1179         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
1180         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
1181         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
1182         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
1183         df_ref_remove, df_insn_refs_delete, df_refs_delete,
1184         df_reorganize_refs, df_set_state, df_hard_reg_init,
1185         df_read_modify_subreg_p) New public functions.
1186         * df-core.c: The core dataflow solver and glue routines for rtl
1187         dataflow.
1188         (df_init, df_add_problem, df_set_blocks, df_finish,
1189         df_hybrid_search_forward, df_hybrid_search_backward,
1190         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
1191         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
1192         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
1193         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
1194         df_reg_defined, df_find_use, df_reg_used, df_dump,
1195         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
1196         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
1197         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
1198         debug_df_useno, reset_df_after_reload): New functions.
1199         * df-scan.c: The scanning fuctions, once in df.c, completely
1200         rewritten so that they now fully model the functionality of
1201         register usage at the backend.
1202         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
1203         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
1204         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
1205         df_grow_insn_info, df_rescan_blocks, df_ref_create,
1206         df_get_artificial_defs, df_get_artificial_uses,
1207         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
1208         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
1209         df_refs_delete, df_reorganize_refs, df_set_state,
1210         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
1211         df_def_record_1, df_defs_record, df_uses_record,
1212         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
1213         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
1214         df_record_exit_block_uses, df_hard_reg_init): New functions.
1215
1216         * df-problems.c: Seven concrete dataflow problems that use the
1217         scanning in df-scan.c and are solved by the engine in df-core.c.
1218         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
1219         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
1220         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
1221         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
1222         df_ru_free_bb_info, df_ru_alloc,
1223         df_ru_bb_local_compute_process_def,
1224         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
1225         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
1226         df_ru_transfer_function, df_ru_free, df_ru_dump,
1227         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
1228         df_rd_free_bb_info, df_rd_alloc,
1229         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
1230         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
1231         df_rd_transfer_function, df_rd_free, df_rd_dump,
1232         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
1233         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
1234         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
1235         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
1236         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
1237         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
1238         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
1239         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
1240         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
1241         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
1242         df_urec_mark_reg_change, df_urec_check_earlyclobber,
1243         df_urec_mark_reg_use_for_earlyclobber,
1244         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
1245         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
1246         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
1247         df_urec_dump, df_urec_add_problem, df_chain_alloc,
1248         df_chain_create_bb_process_use, df_chain_create_bb,
1249         df_chain_finalize, df_chain_free, df_chains_dump,
1250         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
1251         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
1252         df_reg_lifetime): New functions.
1253         * df.c: Deleted file.
1254         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
1255         consistent with new df api.
1256         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
1257         rest_of_handle_sms): Ditto.
1258         * web.c (unionfind_union, union_defs, entry_register, web_main):
1259         Ditto.
1260         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
1261         invariant_expr_equal_p, find_defs, check_dependencies,
1262         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
1263         free_inv_motion_data, move_loop_invariants): Ditto.
1264         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c): 
1265         Update dependencies.
1266         (odf.c): Added defective entry that was deleted later in day.
1267         * sched-deps.c (sched_analyze_1): Ditto.
1268
1269 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
1270
1271         * tree-ssa-operands.c (get_expr_operands): Record addressable
1272         variables directly.  Do not call add_stmt_operands for CONST_DECLs
1273         and ARRAY_DECLs.
1274         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
1275         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
1276
1277 2006-01-11  Ben Elliston  <bje@au.ibm.com>
1278
1279         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
1280         function returns true in the positive case.
1281
1282 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1283
1284         PR target/20754
1285         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
1286         for SI, DI, SF and DF modes.  Add alternatives to copy between
1287         general and floating point registers to the 32-bit patterns.
1288         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
1289         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
1290         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
1291         generating 64-bit code.
1292         * config/pa/pa.c (output_move_double): Handle copies between general
1293         and floating registers.
1294
1295 2006-01-10  Stuart Hastings  <stuart@apple.com>
1296
1297         * config/i386/i386.md (set_got): Update.
1298         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
1299         (builtin_setjmp_receiver): Mach-O support.
1300         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
1301         (GOT_SYMBOL_NAME): Define.
1302         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
1303         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
1304         * config/i386/i386.c (override_options): Revise for Darwin.
1305         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
1306         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
1307         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
1308         * config/i386/i386-protos.h (output_set_got): Likewise.
1309         * config/darwin.c (machopic_legitimize_pic_address): Update
1310         regs_ever_live[].
1311
1312 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1313
1314         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
1315         when MODE isn't BLKmode.
1316
1317 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
1318
1319         PR rtl-optimization/25367
1320         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
1321
1322 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
1323
1324         PR target/25718
1325         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
1326         for a negative bound.
1327
1328 2006-01-10  Richard Guenther  <rguenther@suse.de>
1329
1330         * tree-ssa-structalias.c (get_constraint_for_component_ref):
1331         Never override with anything constraint.
1332
1333 2006-01-10  Jan Beulich  <jbeulich@novell.com>
1334
1335         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
1336         256 bits when optimize_size.
1337
1338 2006-01-10  Jan Beulich  <jbeulich@novell.com>
1339
1340         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
1341         MASK_ALIGN_DOUBLE.
1342         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
1343         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
1344         arguments.
1345
1346 2006-01-10  Ben Elliston  <bje@au.ibm.com>
1347
1348         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
1349         float modes.
1350         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
1351         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
1352         (USE_FP_FOR_ARG): Reject decimal float modes.
1353         (function_arg_advance): Likewise.
1354         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
1355         (rs6000_handle_altivec_attribute): Do not permit decimal floating
1356         point types in AltiVec vectors.
1357         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
1358         (rs6000_libcall_value): Likewise.
1359
1360 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
1361
1362         * config/xtensa/ieee754-df.S: New file.
1363         * config/xtensa/ieee754-sf.S: New file.
1364         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
1365         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
1366         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
1367
1368 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
1369
1370         * config/sh/predicates.md (binary_float_operator,
1371         binary_logical_operator, commutative_float_operator,
1372         equality_comparison_operator, greater_comparison_operator,
1373         less_comparison_operator, logical_operator,
1374         noncommutative_float_operator, shift_operator,
1375         symbol_ref_operand, unary_float_operator): Remove redundant
1376         conditionals.
1377
1378 2006-01-09  Jeff Law  <law@redhat.com>
1379
1380         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
1381         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
1382         now unused arguments.  Callers updated.
1383         (eliminate_redundant_computations): Remove now unused arguments,
1384         callers updated.
1385         (local_fold): Remove, no longer used.
1386         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
1387         and moved to...
1388         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
1389         (simplify_cond): New function.
1390         (forward_propagate_into_cond): Call simplify_cond.
1391
1392 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
1393
1394         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
1395         (*vec_extractv2di_1_sse): New.
1396
1397 2006-01-09  Ben Elliston  <bje@au.ibm.com>
1398
1399         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
1400
1401 2006-01-08  Richard Guenther  <rguenther@suse.de>
1402
1403         * tree-ssa-structalias.c (get_constraint_for): Remove
1404         anyoffset argument.
1405         (get_constraint_for_component_ref): Likewise.
1406         (do_deref): Likewise.
1407         (get_constraint_for): Likewise.
1408         (do_structure_copy): Likewise.
1409         (handle_ptr_arith): Likewise.
1410         (find_func_aliases): Likewise.  Remove unused need_anyoffset
1411         variable.
1412
1413 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
1414             Kaz Kojima  <kkojima@gcc.gnu.org>
1415
1416         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
1417         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
1418         (EXTRA_CONSTRAINT_C16): Remove.
1419         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
1420         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
1421         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
1422         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
1423         constants of SHmedia.  Handle nested constant expressions of
1424         SHmedia correctly.
1425         (andcosts): Fix the costs for SHmedia constants.
1426         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
1427         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
1428         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
1429         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
1430         (movv4hi_i, movv2si_i): Likewise.
1431         (movsi_const): Adjust the second operand of ior so to match with
1432         the Csu constraint.
1433         (movdi_const, movdi_const_32bit): Likewise.
1434         (movdi_const_16bit+1): Don't sign-extend LOW.
1435         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
1436         step.
1437         (*double_shori): Fix the split condition.  Use GEN_INT instead
1438         of get_int_mode calls.  Mask lower 16-bit of the argument of
1439         the last GEN_INT.
1440         (sym2GOTPLT): Remove.
1441         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
1442         gen_rtx_UNSPEC.
1443         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
1444         instead of EXTRA_CONSTRAINT_C16.
1445
1446 2006-01-07  Ian Lance Taylor  <ian@airs.com>
1447             David Edelsohn  <edelsohn@gnu.org>
1448
1449         PR rtl-optimization/25662
1450         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
1451         for constant operands instead of simplify_gen_binary.
1452         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
1453         after trying simplify_binary_operation
1454
1455 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
1456
1457         * tree.c (iterative_hash_expr): Hash decls based on UID.
1458
1459 2006-01-06  Eric Christopher  <echristo@apple.com>
1460
1461         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
1462         (TARGET_UNWIND_EMIT): Fix spelling.
1463         * target.h (gcc_target): Add except_table_label.
1464         * except.c (output_function_exception_table): Use.
1465         * varasm.c (default_emit_except_table_label): New.
1466         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
1467         define.
1468         (asm_out): Add here.
1469         * output.h (default_emit_except_table_label): Prototype.
1470         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
1471         * config/darwin.c (darwin_emit_except_table_label): Define.
1472         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
1473
1474 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
1475
1476         PR tree-optimization/18527
1477         * tree-ssa-loop-niter.c (number_of_iterations_cond,
1478         number_of_iterations_special, number_of_iterations_exit):
1479         Move base and step of an iv to a single structure.  Add
1480         no_overflow flag, and use it in # of iterations analysis.
1481         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
1482         folded_casts argument.
1483         (simple_iv): Pass base and step in a structure.  Set no_overflow
1484         flag.
1485         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
1486         Evaluate expensiveness of computing # of iterations instead of
1487         the final expression.
1488         * tree-scalar-evolution.h (affine_iv): New structure.
1489         (simple_iv): Declaration changed.
1490         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
1491         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
1492         find_givs_in_stmt): Changed due to simple_iv change.
1493
1494 2006-01-06  Jeff Law  <law@redhat.com>
1495
1496         PR ada/24994
1497         * tree-cfg.c (bsi_replace): Rename final argument from
1498         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
1499         change (stmt -> orig_stmt).
1500         * tree-eh.c (verify_eh_throw_stmt_node): New function.
1501         (bsi_remove): Add new argument.  Remove EH information
1502         if requested.
1503         (verify_eh_throw_table_statements): New function.
1504         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
1505         updated.
1506         * tree-optimize.c (execute_free_cfg_annotations): Verify
1507         the EH throw statement table after removing annotations.
1508         * except.h (verify_eh_throw_table_statements): Prototype.
1509         * tree-flow.h (bsi_remove): Update prototype.
1510         * tree-vrp.c (remove_range_assertions): Add new argument to
1511         bsi_remove call.
1512         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
1513         * tree-complex.c (expand_complex_div_wide): Likewise.
1514         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
1515         * tree-tailcall.c (eliminate_tailcall): Likewise.
1516         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
1517         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
1518         * tree-nrv.c (tree_nrv): Likewise.
1519         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
1520         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
1521         (combine_blocks): Likewise.
1522         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
1523         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
1524         (cleanup_control_flow): Likewise.
1525         (remove_forwarder_block): Likewise.
1526         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
1527         * tree-sra.c (sra_replace): Likewise.
1528         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
1529         (forward_propagate_single_use_vars): Likewise.
1530         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
1531         * tree-inline.c (expand_call_inline): Likewise.
1532         * tree-vect-transform.c (vect_transform_loop): Likewise.
1533         * tree-outof-ssa.c (rewrite_trees): Likewise.
1534         * tree-cfg.c (make_goto_expr_edges): Likewise.
1535         (cleanup_dead_labels): Likewise.
1536         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
1537         (bsi_move_before, bsi_move_after): Likewise.
1538         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
1539         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
1540
1541 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
1542
1543         PR tree-opt/25528
1544         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
1545         and IMAGPART_EXPR.
1546         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
1547         on non gimple variables.  Also add checks at the top for decls and
1548         mtags.
1549         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
1550         complex types.
1551         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
1552         and IMAGPART_EXPR for creating MUST_DEFs.
1553         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
1554         and NAME_MEMORY_TAG separately from the DECLs.
1555
1556 2006-01-06  Richard Guenther  <rguenther@suse.de>
1557
1558         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
1559         annotation, if necessary.
1560         * tree-ssa-pre.c (create_expression_by_pieces): Remove
1561         redundant calls to update_stmt.
1562         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
1563         Likewise.
1564
1565 2006-01-05  Richard Henderson  <rth@redhat.com>
1566
1567         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
1568
1569 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
1570
1571         * c-typeck.c: Update copyright date.
1572
1573 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
1574
1575         * c-typeck.c (build_c_cast): Always warn when casting
1576         from a pointer to an integer of different size, even if
1577         the node was constant.
1578
1579 2006-01-05  Richard Guenther  <rguenther@suse.de>
1580
1581         PR tree-optimization/22555
1582         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
1583         if one structure field is an array.
1584         * tree-ssa-operands.c (get_expr_operands): Continue scanning
1585         operands even if we found a subvar, but ignore VOPs in this
1586         case.
1587         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
1588         for renaming.
1589         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
1590
1591 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
1592
1593         PR middle-end/24998
1594         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
1595
1596 2006-01-05  Richard Guenther  <rguenther@suse.de>
1597             Diego Novillo  <dnovillo@redhat.com>
1598
1599         * tree-pass.h (TODO_remove_unused_locals): Define.
1600         * gimple-low.c (expand_var_p, remove_useless_vars,
1601         pass_remove_useless_vars): Remove.  Update all users.
1602         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
1603         (remove_unused_locals): New function.
1604         * tree-flow.h (remove_unused_locals): Declare.
1605         * passes.c (execute_todo): Call remove_unused_locals if
1606         TODO_remove_unused_locals is set.
1607         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
1608         * tree-ssa-dce.c (pass_dce): Likewise.
1609         * tree-outof-ssa.c (pass_del_ssa): Likewise.
1610
1611 2006-01-05  Richard Guenther  <rguenther@suse.de>
1612
1613         * tree-flow.h (struct fieldoff): Decompose field to
1614         type, size and decl.
1615         * tree-ssa-alias.c (create_sft): Take type as parameter.
1616         (create_overlap_variables_for): Store type, size and decl
1617         in the fieldoff structure.
1618         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
1619         of struct fieldoff.
1620         (push_fields_onto_fieldstack): Likewise.
1621         (create_variable_info_for): Likewise.  Use offset for the
1622         SFT name if the decl is not available.
1623
1624 2006-01-04  Paul Brook  <paul@codesourcery.com>
1625
1626         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
1627
1628 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
1629
1630         * lambda-code.c (can_put_in_inner_loop): Relax
1631         restrictions.
1632         (can_put_after_inner_loop): New function.
1633         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
1634         (perfect_nestify): Change to make copies and modify uses.
1635
1636 2006-01-04  Richard Henderson  <rth@redhat.com>
1637
1638         Merge from gomp branch:
1639         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
1640         via integer constant.
1641         (pragma_lex): Remove.
1642         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
1643         rather than parsing it.
1644         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
1645         handle_pragma_extern_prefix): Add %< %> quotes.
1646         (registered_pragmas): New.
1647         (c_register_pragma_1): New.
1648         (c_register_pragma): Use it.
1649         (c_register_pragma_with_expansion): Likewise.
1650         (c_invoke_pragma_handler): New.
1651         (init_pragma): Use cpp_register_deferred_pragma directly for
1652         pch_preprocess.
1653         * c-pragma.h (enum pragma_kind): New.
1654         (pragma_handler): New.
1655         (c_invoke_pragma_handler): Declare.
1656         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
1657         CPP_PRAGMA_EOL.
1658         * c-common.h (c_common_pch_pragma): Update decl.
1659         * Makefile.in (c-parser.o): Update dependencies.
1660         (GTFILES): Add c-pragma.h.
1661         * c-parser.c (struct c_token): Add pragma_kind.
1662         (struct c_parser): Add in_pragma.
1663         (c_lex_one_token): Always initialize keyword and pragma_kind.
1664         Extract data for CPP_PRAGMA.
1665         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
1666         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
1667         Don't allow CPP_PRAGMA_EOL if in_pragma.
1668         (c_parser_consume_pragma): New.
1669         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
1670         (c_parser_skip_to_end_of_parameter): Likewise.
1671         (c_parser_skip_to_end_of_block_or_statement): Likewise.
1672         (c_parser_skip_to_pragma_eol): New.
1673         (c_parser_external_declaration): Handle CPP_PRAGMA.
1674         (c_parser_compound_statement_nostart): Likewise.
1675         (c_parser_statement_after_labels): Likewise.
1676         (c_parser_pragma): New.
1677         (pragma_lex): Likewise.
1678         (c_parser_pragma_pch_preprocess): New.
1679         (c_parser_new): Merge into ...
1680         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
1681
1682 2006-01-04  Jeff Law  <law@redhat.com>
1683
1684         PR ada/24994
1685         * tree-cfg.c (bsi_replace): Remove the original statement
1686         from the EH throw statement table.
1687
1688 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
1689
1690         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
1691         make the prototype extern "C" and add throw ().
1692
1693         PR target/25554
1694         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
1695         and pos non-negative and pos + len <= 32.
1696         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
1697         drop pos + len < HOST_BITS_PER_WIDE_INT test.
1698         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
1699
1700         PR c/25559
1701         * c-common.c (handle_vector_size_attribute): Reject zero vector size
1702         as well as sizes not multiple of component size.
1703
1704         PR debug/25562
1705         * function.c (instantiate_expr): New function.
1706         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
1707         walk its DECL_VALUE_EXPR with instantiate_expr.
1708
1709         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
1710         DW_OP_deref{,_size} if address isn't going to be added.
1711
1712 2006-01-04  Ben Elliston  <bje@au.ibm.com>
1713
1714         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
1715         * config/fp-bit.c: Likewise.
1716
1717 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
1718
1719         * dominance.c: Add comment about why we use DFS numbering
1720         of dominance tree.
1721
1722 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
1723             Richard Henderson  <rth@redhat.com>
1724
1725         Merge from gomp-branch:
1726         * varasm.c (assemble_variable): Handle thread-local COMMON data.
1727         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
1728
1729 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
1730
1731         PR rtl-optimization/25578
1732         * combine.c (combine_simplify_rtx, force_to_mode): Don't
1733         pass a parameter to simplify_shift_const if changing ASHIFTRT
1734         to LSHIFTRT.
1735
1736 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
1737
1738         * builtins.c (get_builtin_sync_mem): New function.
1739         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
1740         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
1741         Call get_builtin_sync_mem to generate mem rtx.
1742
1743 2006-01-03  Richard Guenther  <rguenther@suse.de>
1744
1745         PR c/25183
1746         * stmt.c (add_case_node): Make sure to clear overflow flags
1747         from ranges.
1748
1749 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
1750
1751         Merge from gomp-branch.
1752         * config/sparc/sync.md: New file.
1753         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
1754         UNSPECV_LDSTUB): New constants.
1755         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
1756         * config/sparc/predicates.md (memory_reg_operand): New predicate.
1757         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
1758         prototype.
1759
1760 2006-01-03  Roger Sayle  <roger@eyesopen.com>
1761
1762         * combine.c (reg_subword_p): New predicate to test whether the
1763         destination of a set refers to a subword/piece of a register.
1764         (try_combine): Generalize the code to merge the setting of a
1765         pseudo to a constant followed by a set of a subword of that
1766         register to a constant.
1767
1768 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
1769
1770         * basic-block.h (control_flow_graph): Change the type of
1771         x_label_to_block_map to VEC(basic_block,gc) *.
1772         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
1773         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
1774
1775         * tree-ssa-propagate.c (cfg_blocks): Change the type to
1776         VEC(basic_block,heap) *.
1777         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
1778         ssa_prop_fini): Adjust the uses of cfg_blocks.
1779
1780 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
1781
1782         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
1783         COMPONENT_REFs.
1784         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
1785         hashing trees instead of a pointer hash.
1786         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
1787         compare for MEM_EXPR.
1788
1789         PR rtl-optimization/25130
1790         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
1791         when comparing MEMs for GCSE
1792
1793 2006-01-03  Ben Elliston  <bje@au.ibm.com>
1794
1795         * targhooks.h (default_decimal_float_supported_p): Declare.
1796         * targhooks.c (default_decimal_float_supported_p): Define.
1797         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
1798         `default_decimal_float_supported_p'.
1799         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
1800
1801 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
1802
1803         * combine.c (apply_distributive_law <SUBREG>): Check
1804         TRULY_NOOP_TRUNCATION.
1805
1806 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
1807
1808         * dwarf2out.c (have_switched_text_section): Delete.
1809         (have_multiple_function_sections): New.
1810         (have_location_lists): Make 'bool'.
1811         (add_AT_loc_list): Use 'true' not '1'.
1812         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
1813         (output_loc_list): Use have_multiple_function_sections.
1814         (output_ranges): Likewise.
1815         (dwarf2out_begin_function): Set have_multiple_function_sections if
1816         necessary.
1817         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
1818         Check function_section rather than DECL_SECTION_NAME.
1819         (dwarf2out_finish): Use have_multiple_function_sections.
1820         Don't clear have_location_lists.
1821
1822 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
1823             Jan Hubicka  <jh@suse.cz>
1824
1825         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
1826         case of conditional jump jumping to the next instruction.
1827         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
1828         cases of conditional jump jumping to the next instruction.
1829
1830 2006-01-02  Jan Hubicka  <jh@suse.cz>
1831
1832         * i386.c (*_cost): Add COSTS_N_INSNS.
1833         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
1834
1835 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
1836
1837         PR target/25259
1838         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
1839
1840 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1841
1842         * config/arm/arm.c (all_fpus): Fix comment typo.
1843         * config/darwin.c: Likewise.
1844         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
1845         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
1846         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
1847
1848 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
1849
1850         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
1851         (rs6000_split_compare_and_swapqhi): New.
1852         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
1853         (sync_compare_and_swapqhi_internal): New.
1854         * config/rs6000/rs6000-protos.h: Declare.