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