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* tree-ssa-alias.c (add_type_alias): Fix typo. Test whether
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
2
3         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
4         VAR is a tag, not its type tag.
5
6 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
7
8         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
9         alternatives to match style of other entries.
10         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
11
12 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
13
14         PR tree-optimization/25771
15         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
16         SSA_NAMES.
17
18 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
19
20         PR tree-opt/24365
21         * tree-inline.c (declare_return_variable): If the return variable
22         was marked as a non gimple complex, set the return slot variable
23         to be a non gimple comple variable.
24
25 2006-01-13  Richard Guenther  <rguenther@suse.de>
26
27         * builtins.c (expand_builtin_sincos): New function.
28         (expand_builtin_mathfn_3): Remove dead code, sin and cos
29         do not set errno.
30         (expand_builtin): Expand sincos using expand_builtin_sincos.
31
32 2006-01-12  DJ Delorie  <dj@redhat.com>
33
34         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
35         shift counts, separate SI shifts for m32c vs m16c, pass shift type
36         so that constant shifts can be split.
37         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
38         (m32c_valid_pointer_mode): Make static.
39         (shift_gen_func_for): New.
40         (m32c_prepare_shift): Use it.  Split large const shifts into
41         multiple shifts.
42         * config/m32c/predicates.md (shiftcount_operand): Allow more
43         general operands.
44         (longshiftcount_operand): New.
45         * doc/md.texi (Machine Constraints): Document In6.
46
47 2006-01-13  Ben Elliston  <bje@au.ibm.com>
48
49         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
50         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
51         documentation.
52
53 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
54
55         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
56         to try to avoid clobbering pieces of structures when we know
57         something about the whole structure.
58         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
59
60 2006-01-13  Ben Elliston  <bje@au.ibm.com>
61
62         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
63         return in memory, as this is no limitation is no longer present.
64
65 2006-01-12  DJ Delorie  <dj@redhat.com>
66
67         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
68         mova with fb, and for fb+0 -> An.
69
70         * config/m32c/mov.md (peephole2): Fix enabling logic.
71
72         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
73         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
74         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
75         FINI_ARRAY_SECTION_ASM_OP): Define.
76
77         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
78         variable.
79         (m32c_legitimize_reload_address): New logic to reload FB to An.
80         (m32c_output_reg_push): Add newline.
81         (m32c_output_reg_pop): Likewise.
82
83 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
84
85         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
86
87 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
88
89         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
90
91 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
92
93         * config/sh/predicates.md (sh_rep_vec): Add parallel to
94         match_code.
95
96 2006-01-11  Ben Elliston  <bje@au.ibm.com>
97
98         * rtlanal.c (find_reg_note): Assert insn is not null.
99
100 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
101
102         * df-scan.c (df_hard_reg_init): Move declaration of i outside
103         ifdef.
104
105 2006-01-11  Jeff Law  <law@redhat.com>
106
107         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
108         hold edge pairs.
109         (mark_threaded_blocks, register_jump_thread): New functions.
110         (thread_through_all_blocks): Remove unwanted argument.  No
111         longer rely on e->aux to communicate thread target info.
112         Call mark_threaded_blocks.  Release the threaded_blocks
113         bitmap and threaded_edges vector when complete.
114         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
115         (threaded_blocks): Remove.
116         (tree_ssa_dominator_optimize): Remove initialization and
117         finalization of threaded_blocks.  Simplify call to
118         thread_through_all_blocks.
119         (thread_across_edge): Call register_jump_thread rather than
120         storing thread information into e->aux.
121         (free_all_edge_infos): Simplify now that e->aux is no longer
122         used to communicate with thread_through_all_blocks.
123         * tree-flow.h (thread_through_all_blocks): Update prototype.
124         (register_jump_thread): Prototype.
125         
126 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
127
128         * df-core.c (df_compact_blocks, df_bb_replace): Use
129         SET_BASIC_BLOCK instead of BASIC_BLOCK.
130
131 2006-01-11  Richard Guenther  <rguenther@suse.de>
132
133         PR tree-optimization/25734
134         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
135         stop propagation after successful propagation to the LHS.
136
137 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
138
139         * basic-block.h (control_flow_graph): Change the type of
140         x_basic_block_info to VEC(basic_block,gc) *.
141         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
142         basic_block_info.
143         (SET_BASIC_BLOCK): New.
144         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
145         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
146         * cfgbuild.c (find_basic_blocks): Likewise.
147         * cfglayout.c (fixup_reorder_chain): Likewise.
148         * cfgrtl.c (create_basic_block_structure,
149         rtl_create_basic_block): Likewise.
150         * ifcvt.c (find_if_case_1): Likewise.
151         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
152         Likewise.
153
154 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
155
156         * Makefile.in: Removed rotted odf.c entry.
157         
158 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
159
160         PR target/25706
161         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
162         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
163         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
164         output pattern modifier, not %e.
165         * config/cris/cris.c (cris_op_str): Update comment about pattern
166         modifier.
167         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
168         before falling through into...
169         <case 'E'>: Redefined from old 'e' case.
170
171 2006-01-11  Jan Hubicka  <jh@suse.cz>
172
173         PR target/25042
174         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
175
176 2006-01-11  Jan Hubicka  <jh@suse.cz>
177
178         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
179         * i386.c (x86_decompose_lea): Kill.
180         (ix86_rtx_costs): Kill.
181
182 2006-01-11  Jan Hubicka  <jh@suse.cz>
183
184         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
185         * cgraph.h (cgraph_node): Add inline_decl.
186         (cgraph_insert_node_to_hashtable): Declare.
187         (save_inline_function_body): Declare.
188         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
189         clones.
190         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
191         (cgraph_function_versioning): Update call of tree_function_versioning.
192         (save_inline_function_body): New function.
193         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
194         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
195         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
196         (cgraph_default_inline_p): Likewise.
197         (cgraph_decide_inlining_incrementally): Likewise.
198         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
199         (copy_bb): Kill saving; do updating of clones.
200         (copy_cfg_body): Kill saving.
201         (initialize_inlined-parameters): Likewise.
202         (expand_call_inline): Likewise.
203         (save_body): Kill.
204         (tree_function_versioning): New parameter "update_clones".
205         (inlining_p): Kill saving.
206         * tree-inline.h (tree_function_versioning): Update prototype.
207         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
208         saving.
209
210 2006-01-11  Ian Lance Taylor <ian@airs.com>
211
212         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
213         Allow undoing set of machine mode.
214         (do_SUBST): Use enums instead of is_int.
215         (do_SUBST_MODE): New function.
216         (SUBST_MODE): New macro.
217         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
218         reg and trying to replace reg_regno_rtx with a new register.
219         (undo_all): Use new enums, handle undoing a PUT_MODE change.
220         (simplify_set): Use SUBST_MODE.
221         (distribute_notes): Remove code that tried to update reg notes
222         for regno_reg_rtx changes.
223
224 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
225
226         PR tree-optimization/23109
227         PR tree-optimization/23948
228         PR tree-optimization/24123
229
230         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
231         * tree-cfg.c (single_noncomplex_succ): New.
232         * tree-flow.h (single_noncomplex_succ): Declare it.
233         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
234         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
235         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
236         insert_bb, register_division_in, insert_reciprocals,
237         replace_reciprocal, free_bb): New.
238         (execute_cse_reciprocals_1): Rewritten.
239         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
240         Do not commit any edge insertion.  Always compute dominators and
241         create the allocation pool.
242         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
243         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
244         * targhooks.c (default_min_divistions_for_recip_mul): New.
245         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
246         * passes.c (init_optimization_passes): Run recip after tree loop
247         optimizations.
248         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
249
250 2005-01-11  Danny Berlin <dberlin@dberlin.org>
251             Kenneth Zadeck <zadeck@naturalbridge.com>
252
253         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
254         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
255         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
256         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
257         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
258         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
259         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
260         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
261         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
262         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
263         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
264         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
265         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
266         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
267         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
268         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
269         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
270         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
271         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
272         DF_SCAN_POST_ALLOC): New macros.
273         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
274         df_free_bb_function, df_local_compute_function, df_init_function,
275         df_dataflow_function, df_confluence_function_0,
276         df_confluence_function_n, df_transfer_function,
277         df_finalizer_function, df_free_function, df_dump_problem_function,
278         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
279         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
280         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
281         df_urec_bb_info, ) New types.
282         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
283         variables.
284         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
285         df_analyze_simple_change_some_blocks,
286         df_analyze_simple_change_one_block, df_compact_blocks,
287         df_bb_replace, df_bb_regno_last_use_find,
288         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
289         df_insn_regno_def_p, df_find_def, df_find_use,
290         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
291         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
292         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
293         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
294         debug_df_chain, df_get_dependent_problem, df_chain_create,
295         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
296         df_grow_bb_info, df_chain_dump, df_print_bb_index,
297         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
298         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
299         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
300         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
301         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
302         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
303         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
304         df_ref_remove, df_insn_refs_delete, df_refs_delete,
305         df_reorganize_refs, df_set_state, df_hard_reg_init,
306         df_read_modify_subreg_p) New public functions.
307         * df-core.c: The core dataflow solver and glue routines for rtl
308         dataflow.
309         (df_init, df_add_problem, df_set_blocks, df_finish,
310         df_hybrid_search_forward, df_hybrid_search_backward,
311         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
312         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
313         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
314         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
315         df_reg_defined, df_find_use, df_reg_used, df_dump,
316         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
317         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
318         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
319         debug_df_useno, reset_df_after_reload): New functions.
320         * df-scan.c: The scanning fuctions, once in df.c, completely
321         rewritten so that they now fully model the functionality of
322         register usage at the backend.
323         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
324         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
325         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
326         df_grow_insn_info, df_rescan_blocks, df_ref_create,
327         df_get_artificial_defs, df_get_artificial_uses,
328         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
329         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
330         df_refs_delete, df_reorganize_refs, df_set_state,
331         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
332         df_def_record_1, df_defs_record, df_uses_record,
333         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
334         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
335         df_record_exit_block_uses, df_hard_reg_init): New functions.
336
337         * df-problems.c: Seven concrete dataflow problems that use the
338         scanning in df-scan.c and are solved by the engine in df-core.c.
339         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
340         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
341         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
342         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
343         df_ru_free_bb_info, df_ru_alloc,
344         df_ru_bb_local_compute_process_def,
345         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
346         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
347         df_ru_transfer_function, df_ru_free, df_ru_dump,
348         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
349         df_rd_free_bb_info, df_rd_alloc,
350         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
351         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
352         df_rd_transfer_function, df_rd_free, df_rd_dump,
353         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
354         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
355         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
356         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
357         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
358         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
359         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
360         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
361         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
362         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
363         df_urec_mark_reg_change, df_urec_check_earlyclobber,
364         df_urec_mark_reg_use_for_earlyclobber,
365         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
366         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
367         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
368         df_urec_dump, df_urec_add_problem, df_chain_alloc,
369         df_chain_create_bb_process_use, df_chain_create_bb,
370         df_chain_finalize, df_chain_free, df_chains_dump,
371         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
372         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
373         df_reg_lifetime): New functions.
374         * df.c: Deleted file.
375         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
376         consistent with new df api.
377         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
378         rest_of_handle_sms): Ditto.
379         * web.c (unionfind_union, union_defs, entry_register, web_main):
380         Ditto.
381         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
382         invariant_expr_equal_p, find_defs, check_dependencies,
383         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
384         free_inv_motion_data, move_loop_invariants): Ditto.
385         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c): 
386         Update dependencies.
387         (odf.c): Added defective entry that was deleted later in day.
388         * sched-deps.c (sched_analyze_1): Ditto.
389
390 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
391
392         * tree-ssa-operands.c (get_expr_operands): Record addressable
393         variables directly.  Do not call add_stmt_operands for CONST_DECLs
394         and ARRAY_DECLs.
395         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
396         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
397
398 2006-01-11  Ben Elliston  <bje@au.ibm.com>
399
400         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
401         function returns true in the positive case.
402
403 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
404
405         PR target/20754
406         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
407         for SI, DI, SF and DF modes.  Add alternatives to copy between
408         general and floating point registers to the 32-bit patterns.
409         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
410         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
411         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
412         generating 64-bit code.
413         * config/pa/pa.c (output_move_double): Handle copies between general
414         and floating registers.
415
416 2006-01-10  Stuart Hastings  <stuart@apple.com>
417
418         * config/i386/i386.md (set_got): Update.
419         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
420         (builtin_setjmp_receiver): Mach-O support.
421         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
422         (GOT_SYMBOL_NAME): Define.
423         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
424         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
425         * config/i386/i386.c (override_options): Revise for Darwin.
426         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
427         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
428         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
429         * config/i386/i386-protos.h (output_set_got): Likewise.
430         * config/darwin.c (machopic_legitimize_pic_address): Update
431         regs_ever_live[].
432
433 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
434
435         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
436         when MODE isn't BLKmode.
437
438 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
439
440         PR rtl-optimization/25367
441         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
442
443 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
444
445         PR target/25718
446         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
447         for a negative bound.
448
449 2006-01-10  Richard Guenther  <rguenther@suse.de>
450
451         * tree-ssa-structalias.c (get_constraint_for_component_ref):
452         Never override with anything constraint.
453
454 2006-01-10  Jan Beulich  <jbeulich@novell.com>
455
456         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
457         256 bits when optimize_size.
458
459 2006-01-10  Jan Beulich  <jbeulich@novell.com>
460
461         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
462         MASK_ALIGN_DOUBLE.
463         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
464         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
465         arguments.
466
467 2006-01-10  Ben Elliston  <bje@au.ibm.com>
468
469         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
470         float modes.
471         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
472         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
473         (USE_FP_FOR_ARG): Reject decimal float modes.
474         (function_arg_advance): Likewise.
475         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
476         (rs6000_handle_altivec_attribute): Do not permit decimal floating
477         point types in AltiVec vectors.
478         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
479         (rs6000_libcall_value): Likewise.
480
481 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
482
483         * config/xtensa/ieee754-df.S: New file.
484         * config/xtensa/ieee754-sf.S: New file.
485         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
486         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
487         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
488
489 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
490
491         * config/sh/predicates.md (binary_float_operator,
492         binary_logical_operator, commutative_float_operator,
493         equality_comparison_operator, greater_comparison_operator,
494         less_comparison_operator, logical_operator,
495         noncommutative_float_operator, shift_operator,
496         symbol_ref_operand, unary_float_operator): Remove redundant
497         conditionals.
498
499 2006-01-09  Jeff Law  <law@redhat.com>
500
501         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
502         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
503         now unused arguments.  Callers updated.
504         (eliminate_redundant_computations): Remove now unused arguments,
505         callers updated.
506         (local_fold): Remove, no longer used.
507         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
508         and moved to...
509         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
510         (simplify_cond): New function.
511         (forward_propagate_into_cond): Call simplify_cond.
512
513 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
514
515         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
516         (*vec_extractv2di_1_sse): New.
517
518 2006-01-09  Ben Elliston  <bje@au.ibm.com>
519
520         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
521
522 2006-01-08  Richard Guenther  <rguenther@suse.de>
523
524         * tree-ssa-structalias.c (get_constraint_for): Remove
525         anyoffset argument.
526         (get_constraint_for_component_ref): Likewise.
527         (do_deref): Likewise.
528         (get_constraint_for): Likewise.
529         (do_structure_copy): Likewise.
530         (handle_ptr_arith): Likewise.
531         (find_func_aliases): Likewise.  Remove unused need_anyoffset
532         variable.
533
534 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
535             Kaz Kojima  <kkojima@gcc.gnu.org>
536
537         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
538         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
539         (EXTRA_CONSTRAINT_C16): Remove.
540         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
541         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
542         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
543         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
544         constants of SHmedia.  Handle nested constant expressions of
545         SHmedia correctly.
546         (andcosts): Fix the costs for SHmedia constants.
547         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
548         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
549         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
550         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
551         (movv4hi_i, movv2si_i): Likewise.
552         (movsi_const): Adjust the second operand of ior so to match with
553         the Csu constraint.
554         (movdi_const, movdi_const_32bit): Likewise.
555         (movdi_const_16bit+1): Don't sign-extend LOW.
556         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
557         step.
558         (*double_shori): Fix the split condition.  Use GEN_INT instead
559         of get_int_mode calls.  Mask lower 16-bit of the argument of
560         the last GEN_INT.
561         (sym2GOTPLT): Remove.
562         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
563         gen_rtx_UNSPEC.
564         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
565         instead of EXTRA_CONSTRAINT_C16.
566
567 2006-01-07  Ian Lance Taylor  <ian@airs.com>
568             David Edelsohn  <edelsohn@gnu.org>
569
570         PR rtl-optimization/25662
571         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
572         for constant operands instead of simplify_gen_binary.
573         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
574         after trying simplify_binary_operation
575
576 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
577
578         * tree.c (iterative_hash_expr): Hash decls based on UID.
579
580 2006-01-06  Eric Christopher  <echristo@apple.com>
581
582         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
583         (TARGET_UNWIND_EMIT): Fix spelling.
584         * target.h (gcc_target): Add except_table_label.
585         * except.c (output_function_exception_table): Use.
586         * varasm.c (default_emit_except_table_label): New.
587         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
588         define.
589         (asm_out): Add here.
590         * output.h (default_emit_except_table_label): Prototype.
591         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
592         * config/darwin.c (darwin_emit_except_table_label): Define.
593         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
594
595 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
596
597         PR tree-optimization/18527
598         * tree-ssa-loop-niter.c (number_of_iterations_cond,
599         number_of_iterations_special, number_of_iterations_exit):
600         Move base and step of an iv to a single structure.  Add
601         no_overflow flag, and use it in # of iterations analysis.
602         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
603         folded_casts argument.
604         (simple_iv): Pass base and step in a structure.  Set no_overflow
605         flag.
606         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
607         Evaluate expensiveness of computing # of iterations instead of
608         the final expression.
609         * tree-scalar-evolution.h (affine_iv): New structure.
610         (simple_iv): Declaration changed.
611         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
612         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
613         find_givs_in_stmt): Changed due to simple_iv change.
614
615 2006-01-06  Jeff Law  <law@redhat.com>
616
617         PR ada/24994
618         * tree-cfg.c (bsi_replace): Rename final argument from
619         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
620         change (stmt -> orig_stmt).
621         * tree-eh.c (verify_eh_throw_stmt_node): New function.
622         (bsi_remove): Add new argument.  Remove EH information
623         if requested.
624         (verify_eh_throw_table_statements): New function.
625         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
626         updated.
627         * tree-optimize.c (execute_free_cfg_annotations): Verify
628         the EH throw statement table after removing annotations.
629         * except.h (verify_eh_throw_table_statements): Prototype.
630         * tree-flow.h (bsi_remove): Update prototype.
631         * tree-vrp.c (remove_range_assertions): Add new argument to
632         bsi_remove call.
633         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
634         * tree-complex.c (expand_complex_div_wide): Likewise.
635         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
636         * tree-tailcall.c (eliminate_tailcall): Likewise.
637         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
638         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
639         * tree-nrv.c (tree_nrv): Likewise.
640         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
641         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
642         (combine_blocks): Likewise.
643         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
644         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
645         (cleanup_control_flow): Likewise.
646         (remove_forwarder_block): Likewise.
647         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
648         * tree-sra.c (sra_replace): Likewise.
649         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
650         (forward_propagate_single_use_vars): Likewise.
651         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
652         * tree-inline.c (expand_call_inline): Likewise.
653         * tree-vect-transform.c (vect_transform_loop): Likewise.
654         * tree-outof-ssa.c (rewrite_trees): Likewise.
655         * tree-cfg.c (make_goto_expr_edges): Likewise.
656         (cleanup_dead_labels): Likewise.
657         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
658         (bsi_move_before, bsi_move_after): Likewise.
659         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
660         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
661
662 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
663
664         PR tree-opt/25528
665         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
666         and IMAGPART_EXPR.
667         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
668         on non gimple variables.  Also add checks at the top for decls and
669         mtags.
670         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
671         complex types.
672         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
673         and IMAGPART_EXPR for creating MUST_DEFs.
674         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
675         and NAME_MEMORY_TAG separately from the DECLs.
676
677 2006-01-06  Richard Guenther  <rguenther@suse.de>
678
679         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
680         annotation, if necessary.
681         * tree-ssa-pre.c (create_expression_by_pieces): Remove
682         redundant calls to update_stmt.
683         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
684         Likewise.
685
686 2006-01-05  Richard Henderson  <rth@redhat.com>
687
688         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
689
690 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
691
692         * c-typeck.c: Update copyright date.
693
694 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
695
696         * c-typeck.c (build_c_cast): Always warn when casting
697         from a pointer to an integer of different size, even if
698         the node was constant.
699
700 2006-01-05  Richard Guenther  <rguenther@suse.de>
701
702         PR tree-optimization/22555
703         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
704         if one structure field is an array.
705         * tree-ssa-operands.c (get_expr_operands): Continue scanning
706         operands even if we found a subvar, but ignore VOPs in this
707         case.
708         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
709         for renaming.
710         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
711
712 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
713
714         PR middle-end/24998
715         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
716
717 2006-01-05  Richard Guenther  <rguenther@suse.de>
718             Diego Novillo  <dnovillo@redhat.com>
719
720         * tree-pass.h (TODO_remove_unused_locals): Define.
721         * gimple-low.c (expand_var_p, remove_useless_vars,
722         pass_remove_useless_vars): Remove.  Update all users.
723         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
724         (remove_unused_locals): New function.
725         * tree-flow.h (remove_unused_locals): Declare.
726         * passes.c (execute_todo): Call remove_unused_locals if
727         TODO_remove_unused_locals is set.
728         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
729         * tree-ssa-dce.c (pass_dce): Likewise.
730         * tree-outof-ssa.c (pass_del_ssa): Likewise.
731
732 2006-01-05  Richard Guenther  <rguenther@suse.de>
733
734         * tree-flow.h (struct fieldoff): Decompose field to
735         type, size and decl.
736         * tree-ssa-alias.c (create_sft): Take type as parameter.
737         (create_overlap_variables_for): Store type, size and decl
738         in the fieldoff structure.
739         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
740         of struct fieldoff.
741         (push_fields_onto_fieldstack): Likewise.
742         (create_variable_info_for): Likewise.  Use offset for the
743         SFT name if the decl is not available.
744
745 2006-01-04  Paul Brook  <paul@codesourcery.com>
746
747         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
748
749 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
750
751         * lambda-code.c (can_put_in_inner_loop): Relax
752         restrictions.
753         (can_put_after_inner_loop): New function.
754         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
755         (perfect_nestify): Change to make copies and modify uses.
756
757 2006-01-04  Richard Henderson  <rth@redhat.com>
758
759         Merge from gomp branch:
760         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
761         via integer constant.
762         (pragma_lex): Remove.
763         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
764         rather than parsing it.
765         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
766         handle_pragma_extern_prefix): Add %< %> quotes.
767         (registered_pragmas): New.
768         (c_register_pragma_1): New.
769         (c_register_pragma): Use it.
770         (c_register_pragma_with_expansion): Likewise.
771         (c_invoke_pragma_handler): New.
772         (init_pragma): Use cpp_register_deferred_pragma directly for
773         pch_preprocess.
774         * c-pragma.h (enum pragma_kind): New.
775         (pragma_handler): New.
776         (c_invoke_pragma_handler): Declare.
777         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
778         CPP_PRAGMA_EOL.
779         * c-common.h (c_common_pch_pragma): Update decl.
780         * Makefile.in (c-parser.o): Update dependencies.
781         (GTFILES): Add c-pragma.h.
782         * c-parser.c (struct c_token): Add pragma_kind.
783         (struct c_parser): Add in_pragma.
784         (c_lex_one_token): Always initialize keyword and pragma_kind.
785         Extract data for CPP_PRAGMA.
786         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
787         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
788         Don't allow CPP_PRAGMA_EOL if in_pragma.
789         (c_parser_consume_pragma): New.
790         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
791         (c_parser_skip_to_end_of_parameter): Likewise.
792         (c_parser_skip_to_end_of_block_or_statement): Likewise.
793         (c_parser_skip_to_pragma_eol): New.
794         (c_parser_external_declaration): Handle CPP_PRAGMA.
795         (c_parser_compound_statement_nostart): Likewise.
796         (c_parser_statement_after_labels): Likewise.
797         (c_parser_pragma): New.
798         (pragma_lex): Likewise.
799         (c_parser_pragma_pch_preprocess): New.
800         (c_parser_new): Merge into ...
801         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
802
803 2006-01-04  Jeff Law  <law@redhat.com>
804
805         PR ada/24994
806         * tree-cfg.c (bsi_replace): Remove the original statement
807         from the EH throw statement table.
808
809 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
810
811         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
812         make the prototype extern "C" and add throw ().
813
814         PR target/25554
815         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
816         and pos non-negative and pos + len <= 32.
817         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
818         drop pos + len < HOST_BITS_PER_WIDE_INT test.
819         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
820
821         PR c/25559
822         * c-common.c (handle_vector_size_attribute): Reject zero vector size
823         as well as sizes not multiple of component size.
824
825         PR debug/25562
826         * function.c (instantiate_expr): New function.
827         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
828         walk its DECL_VALUE_EXPR with instantiate_expr.
829
830         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
831         DW_OP_deref{,_size} if address isn't going to be added.
832
833 2006-01-04  Ben Elliston  <bje@au.ibm.com>
834
835         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
836         * config/fp-bit.c: Likewise.
837
838 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
839
840         * dominance.c: Add comment about why we use DFS numbering
841         of dominance tree.
842
843 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
844             Richard Henderson  <rth@redhat.com>
845
846         Merge from gomp-branch:
847         * varasm.c (assemble_variable): Handle thread-local COMMON data.
848         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
849
850 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
851
852         PR rtl-optimization/25578
853         * combine.c (combine_simplify_rtx, force_to_mode): Don't
854         pass a parameter to simplify_shift_const if changing ASHIFTRT
855         to LSHIFTRT.
856
857 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
858
859         * builtins.c (get_builtin_sync_mem): New function.
860         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
861         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
862         Call get_builtin_sync_mem to generate mem rtx.
863
864 2006-01-03  Richard Guenther  <rguenther@suse.de>
865
866         PR c/25183
867         * stmt.c (add_case_node): Make sure to clear overflow flags
868         from ranges.
869
870 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
871
872         Merge from gomp-branch.
873         * config/sparc/sync.md: New file.
874         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
875         UNSPECV_LDSTUB): New constants.
876         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
877         * config/sparc/predicates.md (memory_reg_operand): New predicate.
878         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
879         prototype.
880
881 2006-01-03  Roger Sayle  <roger@eyesopen.com>
882
883         * combine.c (reg_subword_p): New predicate to test whether the
884         destination of a set refers to a subword/piece of a register.
885         (try_combine): Generalize the code to merge the setting of a
886         pseudo to a constant followed by a set of a subword of that
887         register to a constant.
888
889 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
890
891         * basic-block.h (control_flow_graph): Change the type of
892         x_label_to_block_map to VEC(basic_block,gc) *.
893         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
894         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
895
896         * tree-ssa-propagate.c (cfg_blocks): Change the type to
897         VEC(basic_block,heap) *.
898         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
899         ssa_prop_fini): Adjust the uses of cfg_blocks.
900
901 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
902
903         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
904         COMPONENT_REFs.
905         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
906         hashing trees instead of a pointer hash.
907         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
908         compare for MEM_EXPR.
909
910         PR rtl-optimization/25130
911         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
912         when comparing MEMs for GCSE
913
914 2006-01-03  Ben Elliston  <bje@au.ibm.com>
915
916         * targhooks.h (default_decimal_float_supported_p): Declare.
917         * targhooks.c (default_decimal_float_supported_p): Define.
918         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
919         `default_decimal_float_supported_p'.
920         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
921
922 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
923
924         * combine.c (apply_distributive_law <SUBREG>): Check
925         TRULY_NOOP_TRUNCATION.
926
927 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
928
929         * dwarf2out.c (have_switched_text_section): Delete.
930         (have_multiple_function_sections): New.
931         (have_location_lists): Make 'bool'.
932         (add_AT_loc_list): Use 'true' not '1'.
933         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
934         (output_loc_list): Use have_multiple_function_sections.
935         (output_ranges): Likewise.
936         (dwarf2out_begin_function): Set have_multiple_function_sections if
937         necessary.
938         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
939         Check function_section rather than DECL_SECTION_NAME.
940         (dwarf2out_finish): Use have_multiple_function_sections.
941         Don't clear have_location_lists.
942
943 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
944             Jan Hubicka  <jh@suse.cz>
945
946         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
947         case of conditional jump jumping to the next instruction.
948         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
949         cases of conditional jump jumping to the next instruction.
950
951 2006-01-02  Jan Hubicka  <jh@suse.cz>
952
953         * i386.c (*_cost): Add COSTS_N_INSNS.
954         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
955
956 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
957
958         PR target/25259
959         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
960
961 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
962
963         * config/arm/arm.c (all_fpus): Fix comment typo.
964         * config/darwin.c: Likewise.
965         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
966         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
967         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
968
969 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
970
971         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
972         (rs6000_split_compare_and_swapqhi): New.
973         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
974         (sync_compare_and_swapqhi_internal): New.
975         * config/rs6000/rs6000-protos.h: Declare.