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1 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
2
3         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
4         functions.
5         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
6         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
7         number_of_iterations_le): New functions.
8         (number_of_iterations_special): Removed.
9         (number_of_iterations_exit): Do not use number_of_iterations_special.
10         * tree.c (unsigned_type_for): Always return integer type.
11
12 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
13         Richard Guenther  <rguenther@suse.de>
14
15         PR rtl-optimization/24257
16         * gcse.c (find_moveable_store): Only consider a store movable
17         when the SET_SRC of the insn can be assigned to a register.
18
19 2006-01-14  Ian Lance Taylor  <ian@airs.com>
20
21         * tree.c (tree_not_class_check_failed): New function.
22         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
23         (tree_not_class_check_failed): Declare.
24
25 2006-01-13  Ian Lance Taylor  <ian@airs.com>
26
27         * reload1.c (do_output_reload): Add assertion rejecting a
28         CALL_INSN.
29
30 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
31
32         * combine.c (struct reg_stat): Add new fields truncation_label and
33         truncated_to_mode.
34         (record_value_for_reg): Reset truncated_to_mode.
35         (record_truncated_value): New function.
36         (check_promoted_subreg): Call it.  Rename to check_conversions.
37         (combine_instructions): Rename check_promoted_subreg to
38         check_conversions.
39         (reg_truncated_to_mode): New function.
40         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
41         (gen_lowpart_or_truncate): New function.
42         (force_to_mode): Use it instead of gen_lowpart.
43
44 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
45
46         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
47         VAR is a tag, not its type tag.
48
49 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
50
51         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
52         alternatives to match style of other entries.
53         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
54
55 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
56
57         PR tree-optimization/25771
58         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
59         SSA_NAMES.
60
61 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
62
63         PR tree-opt/24365
64         * tree-inline.c (declare_return_variable): If the return variable
65         was marked as a non gimple complex, set the return slot variable
66         to be a non gimple comple variable.
67
68 2006-01-13  Richard Guenther  <rguenther@suse.de>
69
70         * builtins.c (expand_builtin_sincos): New function.
71         (expand_builtin_mathfn_3): Remove dead code, sin and cos
72         do not set errno.
73         (expand_builtin): Expand sincos using expand_builtin_sincos.
74
75 2006-01-12  DJ Delorie  <dj@redhat.com>
76
77         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
78         shift counts, separate SI shifts for m32c vs m16c, pass shift type
79         so that constant shifts can be split.
80         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
81         (m32c_valid_pointer_mode): Make static.
82         (shift_gen_func_for): New.
83         (m32c_prepare_shift): Use it.  Split large const shifts into
84         multiple shifts.
85         * config/m32c/predicates.md (shiftcount_operand): Allow more
86         general operands.
87         (longshiftcount_operand): New.
88         * doc/md.texi (Machine Constraints): Document In6.
89
90 2006-01-13  Ben Elliston  <bje@au.ibm.com>
91
92         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
93         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
94         documentation.
95
96 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
97
98         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
99         to try to avoid clobbering pieces of structures when we know
100         something about the whole structure.
101         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
102
103 2006-01-13  Ben Elliston  <bje@au.ibm.com>
104
105         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
106         return in memory, as this is no limitation is no longer present.
107
108 2006-01-12  DJ Delorie  <dj@redhat.com>
109
110         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
111         mova with fb, and for fb+0 -> An.
112
113         * config/m32c/mov.md (peephole2): Fix enabling logic.
114
115         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
116         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
117         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
118         FINI_ARRAY_SECTION_ASM_OP): Define.
119
120         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
121         variable.
122         (m32c_legitimize_reload_address): New logic to reload FB to An.
123         (m32c_output_reg_push): Add newline.
124         (m32c_output_reg_pop): Likewise.
125
126 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
127
128         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
129
130 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
131
132         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
133
134 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
135
136         * config/sh/predicates.md (sh_rep_vec): Add parallel to
137         match_code.
138
139 2006-01-11  Ben Elliston  <bje@au.ibm.com>
140
141         * rtlanal.c (find_reg_note): Assert insn is not null.
142
143 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
144
145         * df-scan.c (df_hard_reg_init): Move declaration of i outside
146         ifdef.
147
148 2006-01-11  Jeff Law  <law@redhat.com>
149
150         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
151         hold edge pairs.
152         (mark_threaded_blocks, register_jump_thread): New functions.
153         (thread_through_all_blocks): Remove unwanted argument.  No
154         longer rely on e->aux to communicate thread target info.
155         Call mark_threaded_blocks.  Release the threaded_blocks
156         bitmap and threaded_edges vector when complete.
157         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
158         (threaded_blocks): Remove.
159         (tree_ssa_dominator_optimize): Remove initialization and
160         finalization of threaded_blocks.  Simplify call to
161         thread_through_all_blocks.
162         (thread_across_edge): Call register_jump_thread rather than
163         storing thread information into e->aux.
164         (free_all_edge_infos): Simplify now that e->aux is no longer
165         used to communicate with thread_through_all_blocks.
166         * tree-flow.h (thread_through_all_blocks): Update prototype.
167         (register_jump_thread): Prototype.
168         
169 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
170
171         * df-core.c (df_compact_blocks, df_bb_replace): Use
172         SET_BASIC_BLOCK instead of BASIC_BLOCK.
173
174 2006-01-11  Richard Guenther  <rguenther@suse.de>
175
176         PR tree-optimization/25734
177         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
178         stop propagation after successful propagation to the LHS.
179
180 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
181
182         * basic-block.h (control_flow_graph): Change the type of
183         x_basic_block_info to VEC(basic_block,gc) *.
184         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
185         basic_block_info.
186         (SET_BASIC_BLOCK): New.
187         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
188         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
189         * cfgbuild.c (find_basic_blocks): Likewise.
190         * cfglayout.c (fixup_reorder_chain): Likewise.
191         * cfgrtl.c (create_basic_block_structure,
192         rtl_create_basic_block): Likewise.
193         * ifcvt.c (find_if_case_1): Likewise.
194         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
195         Likewise.
196
197 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
198
199         * Makefile.in: Removed rotted odf.c entry.
200         
201 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
202
203         PR target/25706
204         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
205         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
206         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
207         output pattern modifier, not %e.
208         * config/cris/cris.c (cris_op_str): Update comment about pattern
209         modifier.
210         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
211         before falling through into...
212         <case 'E'>: Redefined from old 'e' case.
213
214 2006-01-11  Jan Hubicka  <jh@suse.cz>
215
216         PR target/25042
217         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
218
219 2006-01-11  Jan Hubicka  <jh@suse.cz>
220
221         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
222         * i386.c (x86_decompose_lea): Kill.
223         (ix86_rtx_costs): Kill.
224
225 2006-01-11  Jan Hubicka  <jh@suse.cz>
226
227         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
228         * cgraph.h (cgraph_node): Add inline_decl.
229         (cgraph_insert_node_to_hashtable): Declare.
230         (save_inline_function_body): Declare.
231         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
232         clones.
233         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
234         (cgraph_function_versioning): Update call of tree_function_versioning.
235         (save_inline_function_body): New function.
236         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
237         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
238         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
239         (cgraph_default_inline_p): Likewise.
240         (cgraph_decide_inlining_incrementally): Likewise.
241         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
242         (copy_bb): Kill saving; do updating of clones.
243         (copy_cfg_body): Kill saving.
244         (initialize_inlined-parameters): Likewise.
245         (expand_call_inline): Likewise.
246         (save_body): Kill.
247         (tree_function_versioning): New parameter "update_clones".
248         (inlining_p): Kill saving.
249         * tree-inline.h (tree_function_versioning): Update prototype.
250         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
251         saving.
252
253 2006-01-11  Ian Lance Taylor <ian@airs.com>
254
255         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
256         Allow undoing set of machine mode.
257         (do_SUBST): Use enums instead of is_int.
258         (do_SUBST_MODE): New function.
259         (SUBST_MODE): New macro.
260         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
261         reg and trying to replace reg_regno_rtx with a new register.
262         (undo_all): Use new enums, handle undoing a PUT_MODE change.
263         (simplify_set): Use SUBST_MODE.
264         (distribute_notes): Remove code that tried to update reg notes
265         for regno_reg_rtx changes.
266
267 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
268
269         PR tree-optimization/23109
270         PR tree-optimization/23948
271         PR tree-optimization/24123
272
273         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
274         * tree-cfg.c (single_noncomplex_succ): New.
275         * tree-flow.h (single_noncomplex_succ): Declare it.
276         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
277         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
278         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
279         insert_bb, register_division_in, insert_reciprocals,
280         replace_reciprocal, free_bb): New.
281         (execute_cse_reciprocals_1): Rewritten.
282         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
283         Do not commit any edge insertion.  Always compute dominators and
284         create the allocation pool.
285         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
286         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
287         * targhooks.c (default_min_divistions_for_recip_mul): New.
288         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
289         * passes.c (init_optimization_passes): Run recip after tree loop
290         optimizations.
291         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
292
293 2005-01-11  Danny Berlin <dberlin@dberlin.org>
294             Kenneth Zadeck <zadeck@naturalbridge.com>
295
296         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
297         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
298         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
299         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
300         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
301         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
302         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
303         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
304         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
305         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
306         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
307         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
308         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
309         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
310         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
311         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
312         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
313         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
314         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
315         DF_SCAN_POST_ALLOC): New macros.
316         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
317         df_free_bb_function, df_local_compute_function, df_init_function,
318         df_dataflow_function, df_confluence_function_0,
319         df_confluence_function_n, df_transfer_function,
320         df_finalizer_function, df_free_function, df_dump_problem_function,
321         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
322         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
323         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
324         df_urec_bb_info, ) New types.
325         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
326         variables.
327         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
328         df_analyze_simple_change_some_blocks,
329         df_analyze_simple_change_one_block, df_compact_blocks,
330         df_bb_replace, df_bb_regno_last_use_find,
331         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
332         df_insn_regno_def_p, df_find_def, df_find_use,
333         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
334         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
335         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
336         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
337         debug_df_chain, df_get_dependent_problem, df_chain_create,
338         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
339         df_grow_bb_info, df_chain_dump, df_print_bb_index,
340         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
341         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
342         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
343         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
344         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
345         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
346         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
347         df_ref_remove, df_insn_refs_delete, df_refs_delete,
348         df_reorganize_refs, df_set_state, df_hard_reg_init,
349         df_read_modify_subreg_p) New public functions.
350         * df-core.c: The core dataflow solver and glue routines for rtl
351         dataflow.
352         (df_init, df_add_problem, df_set_blocks, df_finish,
353         df_hybrid_search_forward, df_hybrid_search_backward,
354         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
355         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
356         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
357         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
358         df_reg_defined, df_find_use, df_reg_used, df_dump,
359         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
360         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
361         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
362         debug_df_useno, reset_df_after_reload): New functions.
363         * df-scan.c: The scanning fuctions, once in df.c, completely
364         rewritten so that they now fully model the functionality of
365         register usage at the backend.
366         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
367         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
368         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
369         df_grow_insn_info, df_rescan_blocks, df_ref_create,
370         df_get_artificial_defs, df_get_artificial_uses,
371         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
372         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
373         df_refs_delete, df_reorganize_refs, df_set_state,
374         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
375         df_def_record_1, df_defs_record, df_uses_record,
376         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
377         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
378         df_record_exit_block_uses, df_hard_reg_init): New functions.
379
380         * df-problems.c: Seven concrete dataflow problems that use the
381         scanning in df-scan.c and are solved by the engine in df-core.c.
382         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
383         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
384         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
385         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
386         df_ru_free_bb_info, df_ru_alloc,
387         df_ru_bb_local_compute_process_def,
388         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
389         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
390         df_ru_transfer_function, df_ru_free, df_ru_dump,
391         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
392         df_rd_free_bb_info, df_rd_alloc,
393         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
394         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
395         df_rd_transfer_function, df_rd_free, df_rd_dump,
396         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
397         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
398         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
399         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
400         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
401         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
402         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
403         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
404         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
405         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
406         df_urec_mark_reg_change, df_urec_check_earlyclobber,
407         df_urec_mark_reg_use_for_earlyclobber,
408         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
409         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
410         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
411         df_urec_dump, df_urec_add_problem, df_chain_alloc,
412         df_chain_create_bb_process_use, df_chain_create_bb,
413         df_chain_finalize, df_chain_free, df_chains_dump,
414         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
415         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
416         df_reg_lifetime): New functions.
417         * df.c: Deleted file.
418         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
419         consistent with new df api.
420         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
421         rest_of_handle_sms): Ditto.
422         * web.c (unionfind_union, union_defs, entry_register, web_main):
423         Ditto.
424         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
425         invariant_expr_equal_p, find_defs, check_dependencies,
426         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
427         free_inv_motion_data, move_loop_invariants): Ditto.
428         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c): 
429         Update dependencies.
430         (odf.c): Added defective entry that was deleted later in day.
431         * sched-deps.c (sched_analyze_1): Ditto.
432
433 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
434
435         * tree-ssa-operands.c (get_expr_operands): Record addressable
436         variables directly.  Do not call add_stmt_operands for CONST_DECLs
437         and ARRAY_DECLs.
438         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
439         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
440
441 2006-01-11  Ben Elliston  <bje@au.ibm.com>
442
443         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
444         function returns true in the positive case.
445
446 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
447
448         PR target/20754
449         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
450         for SI, DI, SF and DF modes.  Add alternatives to copy between
451         general and floating point registers to the 32-bit patterns.
452         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
453         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
454         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
455         generating 64-bit code.
456         * config/pa/pa.c (output_move_double): Handle copies between general
457         and floating registers.
458
459 2006-01-10  Stuart Hastings  <stuart@apple.com>
460
461         * config/i386/i386.md (set_got): Update.
462         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
463         (builtin_setjmp_receiver): Mach-O support.
464         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
465         (GOT_SYMBOL_NAME): Define.
466         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
467         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
468         * config/i386/i386.c (override_options): Revise for Darwin.
469         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
470         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
471         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
472         * config/i386/i386-protos.h (output_set_got): Likewise.
473         * config/darwin.c (machopic_legitimize_pic_address): Update
474         regs_ever_live[].
475
476 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
477
478         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
479         when MODE isn't BLKmode.
480
481 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
482
483         PR rtl-optimization/25367
484         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
485
486 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
487
488         PR target/25718
489         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
490         for a negative bound.
491
492 2006-01-10  Richard Guenther  <rguenther@suse.de>
493
494         * tree-ssa-structalias.c (get_constraint_for_component_ref):
495         Never override with anything constraint.
496
497 2006-01-10  Jan Beulich  <jbeulich@novell.com>
498
499         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
500         256 bits when optimize_size.
501
502 2006-01-10  Jan Beulich  <jbeulich@novell.com>
503
504         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
505         MASK_ALIGN_DOUBLE.
506         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
507         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
508         arguments.
509
510 2006-01-10  Ben Elliston  <bje@au.ibm.com>
511
512         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
513         float modes.
514         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
515         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
516         (USE_FP_FOR_ARG): Reject decimal float modes.
517         (function_arg_advance): Likewise.
518         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
519         (rs6000_handle_altivec_attribute): Do not permit decimal floating
520         point types in AltiVec vectors.
521         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
522         (rs6000_libcall_value): Likewise.
523
524 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
525
526         * config/xtensa/ieee754-df.S: New file.
527         * config/xtensa/ieee754-sf.S: New file.
528         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
529         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
530         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
531
532 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
533
534         * config/sh/predicates.md (binary_float_operator,
535         binary_logical_operator, commutative_float_operator,
536         equality_comparison_operator, greater_comparison_operator,
537         less_comparison_operator, logical_operator,
538         noncommutative_float_operator, shift_operator,
539         symbol_ref_operand, unary_float_operator): Remove redundant
540         conditionals.
541
542 2006-01-09  Jeff Law  <law@redhat.com>
543
544         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
545         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
546         now unused arguments.  Callers updated.
547         (eliminate_redundant_computations): Remove now unused arguments,
548         callers updated.
549         (local_fold): Remove, no longer used.
550         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
551         and moved to...
552         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
553         (simplify_cond): New function.
554         (forward_propagate_into_cond): Call simplify_cond.
555
556 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
557
558         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
559         (*vec_extractv2di_1_sse): New.
560
561 2006-01-09  Ben Elliston  <bje@au.ibm.com>
562
563         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
564
565 2006-01-08  Richard Guenther  <rguenther@suse.de>
566
567         * tree-ssa-structalias.c (get_constraint_for): Remove
568         anyoffset argument.
569         (get_constraint_for_component_ref): Likewise.
570         (do_deref): Likewise.
571         (get_constraint_for): Likewise.
572         (do_structure_copy): Likewise.
573         (handle_ptr_arith): Likewise.
574         (find_func_aliases): Likewise.  Remove unused need_anyoffset
575         variable.
576
577 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
578             Kaz Kojima  <kkojima@gcc.gnu.org>
579
580         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
581         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
582         (EXTRA_CONSTRAINT_C16): Remove.
583         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
584         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
585         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
586         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
587         constants of SHmedia.  Handle nested constant expressions of
588         SHmedia correctly.
589         (andcosts): Fix the costs for SHmedia constants.
590         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
591         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
592         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
593         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
594         (movv4hi_i, movv2si_i): Likewise.
595         (movsi_const): Adjust the second operand of ior so to match with
596         the Csu constraint.
597         (movdi_const, movdi_const_32bit): Likewise.
598         (movdi_const_16bit+1): Don't sign-extend LOW.
599         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
600         step.
601         (*double_shori): Fix the split condition.  Use GEN_INT instead
602         of get_int_mode calls.  Mask lower 16-bit of the argument of
603         the last GEN_INT.
604         (sym2GOTPLT): Remove.
605         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
606         gen_rtx_UNSPEC.
607         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
608         instead of EXTRA_CONSTRAINT_C16.
609
610 2006-01-07  Ian Lance Taylor  <ian@airs.com>
611             David Edelsohn  <edelsohn@gnu.org>
612
613         PR rtl-optimization/25662
614         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
615         for constant operands instead of simplify_gen_binary.
616         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
617         after trying simplify_binary_operation
618
619 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
620
621         * tree.c (iterative_hash_expr): Hash decls based on UID.
622
623 2006-01-06  Eric Christopher  <echristo@apple.com>
624
625         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
626         (TARGET_UNWIND_EMIT): Fix spelling.
627         * target.h (gcc_target): Add except_table_label.
628         * except.c (output_function_exception_table): Use.
629         * varasm.c (default_emit_except_table_label): New.
630         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
631         define.
632         (asm_out): Add here.
633         * output.h (default_emit_except_table_label): Prototype.
634         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
635         * config/darwin.c (darwin_emit_except_table_label): Define.
636         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
637
638 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
639
640         PR tree-optimization/18527
641         * tree-ssa-loop-niter.c (number_of_iterations_cond,
642         number_of_iterations_special, number_of_iterations_exit):
643         Move base and step of an iv to a single structure.  Add
644         no_overflow flag, and use it in # of iterations analysis.
645         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
646         folded_casts argument.
647         (simple_iv): Pass base and step in a structure.  Set no_overflow
648         flag.
649         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
650         Evaluate expensiveness of computing # of iterations instead of
651         the final expression.
652         * tree-scalar-evolution.h (affine_iv): New structure.
653         (simple_iv): Declaration changed.
654         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
655         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
656         find_givs_in_stmt): Changed due to simple_iv change.
657
658 2006-01-06  Jeff Law  <law@redhat.com>
659
660         PR ada/24994
661         * tree-cfg.c (bsi_replace): Rename final argument from
662         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
663         change (stmt -> orig_stmt).
664         * tree-eh.c (verify_eh_throw_stmt_node): New function.
665         (bsi_remove): Add new argument.  Remove EH information
666         if requested.
667         (verify_eh_throw_table_statements): New function.
668         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
669         updated.
670         * tree-optimize.c (execute_free_cfg_annotations): Verify
671         the EH throw statement table after removing annotations.
672         * except.h (verify_eh_throw_table_statements): Prototype.
673         * tree-flow.h (bsi_remove): Update prototype.
674         * tree-vrp.c (remove_range_assertions): Add new argument to
675         bsi_remove call.
676         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
677         * tree-complex.c (expand_complex_div_wide): Likewise.
678         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
679         * tree-tailcall.c (eliminate_tailcall): Likewise.
680         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
681         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
682         * tree-nrv.c (tree_nrv): Likewise.
683         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
684         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
685         (combine_blocks): Likewise.
686         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
687         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
688         (cleanup_control_flow): Likewise.
689         (remove_forwarder_block): Likewise.
690         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
691         * tree-sra.c (sra_replace): Likewise.
692         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
693         (forward_propagate_single_use_vars): Likewise.
694         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
695         * tree-inline.c (expand_call_inline): Likewise.
696         * tree-vect-transform.c (vect_transform_loop): Likewise.
697         * tree-outof-ssa.c (rewrite_trees): Likewise.
698         * tree-cfg.c (make_goto_expr_edges): Likewise.
699         (cleanup_dead_labels): Likewise.
700         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
701         (bsi_move_before, bsi_move_after): Likewise.
702         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
703         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
704
705 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
706
707         PR tree-opt/25528
708         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
709         and IMAGPART_EXPR.
710         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
711         on non gimple variables.  Also add checks at the top for decls and
712         mtags.
713         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
714         complex types.
715         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
716         and IMAGPART_EXPR for creating MUST_DEFs.
717         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
718         and NAME_MEMORY_TAG separately from the DECLs.
719
720 2006-01-06  Richard Guenther  <rguenther@suse.de>
721
722         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
723         annotation, if necessary.
724         * tree-ssa-pre.c (create_expression_by_pieces): Remove
725         redundant calls to update_stmt.
726         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
727         Likewise.
728
729 2006-01-05  Richard Henderson  <rth@redhat.com>
730
731         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
732
733 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
734
735         * c-typeck.c: Update copyright date.
736
737 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
738
739         * c-typeck.c (build_c_cast): Always warn when casting
740         from a pointer to an integer of different size, even if
741         the node was constant.
742
743 2006-01-05  Richard Guenther  <rguenther@suse.de>
744
745         PR tree-optimization/22555
746         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
747         if one structure field is an array.
748         * tree-ssa-operands.c (get_expr_operands): Continue scanning
749         operands even if we found a subvar, but ignore VOPs in this
750         case.
751         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
752         for renaming.
753         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
754
755 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
756
757         PR middle-end/24998
758         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
759
760 2006-01-05  Richard Guenther  <rguenther@suse.de>
761             Diego Novillo  <dnovillo@redhat.com>
762
763         * tree-pass.h (TODO_remove_unused_locals): Define.
764         * gimple-low.c (expand_var_p, remove_useless_vars,
765         pass_remove_useless_vars): Remove.  Update all users.
766         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
767         (remove_unused_locals): New function.
768         * tree-flow.h (remove_unused_locals): Declare.
769         * passes.c (execute_todo): Call remove_unused_locals if
770         TODO_remove_unused_locals is set.
771         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
772         * tree-ssa-dce.c (pass_dce): Likewise.
773         * tree-outof-ssa.c (pass_del_ssa): Likewise.
774
775 2006-01-05  Richard Guenther  <rguenther@suse.de>
776
777         * tree-flow.h (struct fieldoff): Decompose field to
778         type, size and decl.
779         * tree-ssa-alias.c (create_sft): Take type as parameter.
780         (create_overlap_variables_for): Store type, size and decl
781         in the fieldoff structure.
782         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
783         of struct fieldoff.
784         (push_fields_onto_fieldstack): Likewise.
785         (create_variable_info_for): Likewise.  Use offset for the
786         SFT name if the decl is not available.
787
788 2006-01-04  Paul Brook  <paul@codesourcery.com>
789
790         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
791
792 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
793
794         * lambda-code.c (can_put_in_inner_loop): Relax
795         restrictions.
796         (can_put_after_inner_loop): New function.
797         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
798         (perfect_nestify): Change to make copies and modify uses.
799
800 2006-01-04  Richard Henderson  <rth@redhat.com>
801
802         Merge from gomp branch:
803         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
804         via integer constant.
805         (pragma_lex): Remove.
806         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
807         rather than parsing it.
808         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
809         handle_pragma_extern_prefix): Add %< %> quotes.
810         (registered_pragmas): New.
811         (c_register_pragma_1): New.
812         (c_register_pragma): Use it.
813         (c_register_pragma_with_expansion): Likewise.
814         (c_invoke_pragma_handler): New.
815         (init_pragma): Use cpp_register_deferred_pragma directly for
816         pch_preprocess.
817         * c-pragma.h (enum pragma_kind): New.
818         (pragma_handler): New.
819         (c_invoke_pragma_handler): Declare.
820         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
821         CPP_PRAGMA_EOL.
822         * c-common.h (c_common_pch_pragma): Update decl.
823         * Makefile.in (c-parser.o): Update dependencies.
824         (GTFILES): Add c-pragma.h.
825         * c-parser.c (struct c_token): Add pragma_kind.
826         (struct c_parser): Add in_pragma.
827         (c_lex_one_token): Always initialize keyword and pragma_kind.
828         Extract data for CPP_PRAGMA.
829         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
830         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
831         Don't allow CPP_PRAGMA_EOL if in_pragma.
832         (c_parser_consume_pragma): New.
833         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
834         (c_parser_skip_to_end_of_parameter): Likewise.
835         (c_parser_skip_to_end_of_block_or_statement): Likewise.
836         (c_parser_skip_to_pragma_eol): New.
837         (c_parser_external_declaration): Handle CPP_PRAGMA.
838         (c_parser_compound_statement_nostart): Likewise.
839         (c_parser_statement_after_labels): Likewise.
840         (c_parser_pragma): New.
841         (pragma_lex): Likewise.
842         (c_parser_pragma_pch_preprocess): New.
843         (c_parser_new): Merge into ...
844         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
845
846 2006-01-04  Jeff Law  <law@redhat.com>
847
848         PR ada/24994
849         * tree-cfg.c (bsi_replace): Remove the original statement
850         from the EH throw statement table.
851
852 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
853
854         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
855         make the prototype extern "C" and add throw ().
856
857         PR target/25554
858         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
859         and pos non-negative and pos + len <= 32.
860         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
861         drop pos + len < HOST_BITS_PER_WIDE_INT test.
862         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
863
864         PR c/25559
865         * c-common.c (handle_vector_size_attribute): Reject zero vector size
866         as well as sizes not multiple of component size.
867
868         PR debug/25562
869         * function.c (instantiate_expr): New function.
870         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
871         walk its DECL_VALUE_EXPR with instantiate_expr.
872
873         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
874         DW_OP_deref{,_size} if address isn't going to be added.
875
876 2006-01-04  Ben Elliston  <bje@au.ibm.com>
877
878         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
879         * config/fp-bit.c: Likewise.
880
881 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
882
883         * dominance.c: Add comment about why we use DFS numbering
884         of dominance tree.
885
886 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
887             Richard Henderson  <rth@redhat.com>
888
889         Merge from gomp-branch:
890         * varasm.c (assemble_variable): Handle thread-local COMMON data.
891         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
892
893 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
894
895         PR rtl-optimization/25578
896         * combine.c (combine_simplify_rtx, force_to_mode): Don't
897         pass a parameter to simplify_shift_const if changing ASHIFTRT
898         to LSHIFTRT.
899
900 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
901
902         * builtins.c (get_builtin_sync_mem): New function.
903         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
904         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
905         Call get_builtin_sync_mem to generate mem rtx.
906
907 2006-01-03  Richard Guenther  <rguenther@suse.de>
908
909         PR c/25183
910         * stmt.c (add_case_node): Make sure to clear overflow flags
911         from ranges.
912
913 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
914
915         Merge from gomp-branch.
916         * config/sparc/sync.md: New file.
917         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
918         UNSPECV_LDSTUB): New constants.
919         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
920         * config/sparc/predicates.md (memory_reg_operand): New predicate.
921         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
922         prototype.
923
924 2006-01-03  Roger Sayle  <roger@eyesopen.com>
925
926         * combine.c (reg_subword_p): New predicate to test whether the
927         destination of a set refers to a subword/piece of a register.
928         (try_combine): Generalize the code to merge the setting of a
929         pseudo to a constant followed by a set of a subword of that
930         register to a constant.
931
932 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
933
934         * basic-block.h (control_flow_graph): Change the type of
935         x_label_to_block_map to VEC(basic_block,gc) *.
936         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
937         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
938
939         * tree-ssa-propagate.c (cfg_blocks): Change the type to
940         VEC(basic_block,heap) *.
941         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
942         ssa_prop_fini): Adjust the uses of cfg_blocks.
943
944 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
945
946         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
947         COMPONENT_REFs.
948         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
949         hashing trees instead of a pointer hash.
950         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
951         compare for MEM_EXPR.
952
953         PR rtl-optimization/25130
954         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
955         when comparing MEMs for GCSE
956
957 2006-01-03  Ben Elliston  <bje@au.ibm.com>
958
959         * targhooks.h (default_decimal_float_supported_p): Declare.
960         * targhooks.c (default_decimal_float_supported_p): Define.
961         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
962         `default_decimal_float_supported_p'.
963         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
964
965 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
966
967         * combine.c (apply_distributive_law <SUBREG>): Check
968         TRULY_NOOP_TRUNCATION.
969
970 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
971
972         * dwarf2out.c (have_switched_text_section): Delete.
973         (have_multiple_function_sections): New.
974         (have_location_lists): Make 'bool'.
975         (add_AT_loc_list): Use 'true' not '1'.
976         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
977         (output_loc_list): Use have_multiple_function_sections.
978         (output_ranges): Likewise.
979         (dwarf2out_begin_function): Set have_multiple_function_sections if
980         necessary.
981         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
982         Check function_section rather than DECL_SECTION_NAME.
983         (dwarf2out_finish): Use have_multiple_function_sections.
984         Don't clear have_location_lists.
985
986 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
987             Jan Hubicka  <jh@suse.cz>
988
989         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
990         case of conditional jump jumping to the next instruction.
991         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
992         cases of conditional jump jumping to the next instruction.
993
994 2006-01-02  Jan Hubicka  <jh@suse.cz>
995
996         * i386.c (*_cost): Add COSTS_N_INSNS.
997         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
998
999 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
1000
1001         PR target/25259
1002         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
1003
1004 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
1005
1006         * config/arm/arm.c (all_fpus): Fix comment typo.
1007         * config/darwin.c: Likewise.
1008         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
1009         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
1010         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
1011
1012 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
1013
1014         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
1015         (rs6000_split_compare_and_swapqhi): New.
1016         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
1017         (sync_compare_and_swapqhi_internal): New.
1018         * config/rs6000/rs6000-protos.h: Declare.