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* builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2
3         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
4         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
5         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
6         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
7         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
8         loop-invariant.c, omp-low.c, opts.c, passes.c,
9         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
10         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
11         tree-ssa-structalias.c, tree-ssa-threadedge.c,
12         tree-ssa-threadupdate.c, tree-vect-patterns.c,
13         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
14         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
15
16 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
17
18         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
19         * dwarf2out.h: Remove the prototype for
20         dwarf2out_add_library_unit_info.
21
22 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
23
24         * tree.c (add_var_to_bind_expr): Remove.
25         * tree.h: Remove the prototype for add_var_to_bind_expr.
26
27 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
28
29         * regclass.c (n_non_fixed_regs): Remove.
30         (init_reg_sets_1, globalize_reg): Remove all uses of
31         n_non_fixed_regs.
32         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
33
34 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
35
36         * rtlanal.c (insns_safe_to_move_p): Remove.
37         * rtl.h: Remove the prototype for insns_safe_to_move_p.
38
39 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
40
41         * expmed.c (expand_mult_add): Remove.
42         * expr.h: Remove the prototype for expand_mult_add.
43
44 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
45
46         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
47         and REG_SAVED_VAL_EXP constants.
48         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
49         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
50         Handle regs stored by value.
51         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
52         (execute_cfa_program): Handle DW_CFA_val_offset,
53         DW_CFA_val_offset_sf and DW_CFA_val_expression.
54         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
55         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
56         (uw_install_context_1): Handle target regs stored by value.
57
58 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
59
60         * tree-sra.c (tree_sra): Return todoflags;
61         (generate_one_element): Set TODO_update_smt_usage if needed.
62         (pass_sra): Remove TODO_update_smt_usage.
63         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
64         parameter.
65         (tree_ssa_forward_propagate_single_use_vars): Return
66         TODO_update_smt_usage if we need to update SMT usage.
67         (pass_forwprop): Remove TODO_update_smt_usage.
68         
69 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
70
71         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
72         (correct_use_link): Remove reference to get_stmt_operands.
73         (update_stmt_operands): Likewise.
74         (get_modify_expr_operands): New function factored out of
75         parse_ssa_operands and get_expr_operands.
76         Try to create V_MUST_DEFs for LHS by default.
77         (get_expr_operands) <case MODIFY_EXPR>: Call
78         get_modify_expr_operands.
79         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
80         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
81         (parse_ssa_operands) <case MODIFY_EXPR>: Call
82         get_modify_expr_operands.
83
84 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
85
86         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
87         * tree-flow.h: Remove the prototype for
88         referenced_var_lookup_if_exists.
89
90 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
91
92         PR rtl-optimization/26345
93         PR target/19061
94         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
95
96 2006-03-03  Roger Sayle  <roger@eyesopen.com>
97
98         PR tree-optimization/26524
99         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
100         fold_convert to create a constant of the appropriate type.
101
102 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
103
104         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
105         SYMBOL_REF_IN_BLOCK_P.
106         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
107         of SYMBOL_FLAG_IN_BLOCK.
108         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
109         instead of SYMBOL_REF_IN_BLOCK_P.
110         * explow.c (use_anchored_address): Likewise.
111         * rtl.c (rtx_size): Likewise.
112         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
113         instead of SYMBOL_FLAG_IN_BLOCK.
114         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
115         SYMBOL_REF_IN_BLOCK_P.
116         (assemble_variable): Likewise.
117         (output_constant_def_contents): Likewise.
118         (output_constant_pool): Likewise.
119         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
120         instead of SYMBOL_FLAG_IN_BLOCK.
121         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
122         SYMBOL_REF_IN_BLOCK_P.
123         (SYMBOL_REF_BLOCK): Likewise.
124         (SYMBOL_REF_OFFSET): Likewise.
125         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
126         SYMBOL_REF_IN_BLOCK_P.
127         (SYMBOL_FLAG_IN_BLOCK): Replace with...
128         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
129         (SYMBOL_REF_IN_BLOCK_P): Replace with...
130         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
131
132 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
133
134         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
135
136 2006-03-02  Roger Sayle  <roger@eyesopen.com>
137
138         * simplify-rtx.c (simplify_unary_operation): When simplifying
139         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
140         that we perform the right shift in the appropriate mode, and
141         then extend or truncate the result to requested mode.
142
143 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
144
145         * gengtype.c (main): Handle double_int type.
146         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
147         * double-int.c: New file.
148         * double-int.h: New file.
149         * system.h: Include doubleint.h.
150         * Makefile.in (SYSTEM_H): Include double-int.h.
151         (double-int.o): Add.
152
153 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
154
155         PR bootstrap/26478
156         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
157         copying over it.
158
159 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
160
161         * tree-vrp.c (remove_range_assertions): Do not update statements
162         unnecessarily.
163
164 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
165
166         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
167         cleanup.
168         * gcse.c (rest_of_handle_gcse): Ditto.
169         * except.c (gate_handle_eh): Ditto.
170         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
171         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
172
173 2006-03-02  Eric Christopher  <echristo@apple.com>
174
175         * config/i386/i386.c (machopic_output_stub): Add indirection to
176         jump.
177
178 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
179
180         * loop.c: Removed.
181
182 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
183
184         Sun Niagara specific optimizations.
185         * config.gcc: Recognize niagara as target.
186         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
187         (TARGET_CPU_niagara): Define.
188         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
189         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
190         (CPP_CPU_SPEC): Handle -mcpu=niagara.
191         (ASM_CPU_SPEC): Likewise.
192         (PROCESSOR_NIAGARA): New enum entry.
193         (REGISTER_MOVE_COST): Handle Niagara.
194         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
195         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
196         (sparc_override_options): Recognize "niagara", set appropriate
197         default MASK_* values for it, and align functions to 32-bytes
198         by default just like ULTRASPARC/ULTRASPARC3.
199         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
200         (sparc64_initialize_trampoline): Likewise.
201         (sparc_use_sched_lookahead): Use zero for niagara.
202         (sparc_issue_rate): Use one for niagara.
203         * config/sparc/niagara.md: New file.
204         * config/sparc/sparc.md: Include it.
205         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
206         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
207         when default cpu is niagara.
208         (CPP_CPU_SPEC): Handle -mcpu=niagara.
209         (ASM_CPU_SPEC): Likewise.
210         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
211         when default cpu is niagara.
212         (ASM_CPU_SPEC): Handle -mcpu=niagara.
213         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
214         just like v9/ultrasparc/ultrasparc3.
215         * doc/invoke.texi: Add documentation for "niagara" and improve
216         existing documentation for ultrasparc variants.
217
218 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
219
220         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
221
222 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
223
224         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
225         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
226         and say that only one is needed.
227         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
228         * target.h (have_switchable_bss_sections): New hook.
229         * explow.c (use_anchored_address): Check that the symbol is in a block.
230         * varasm.c (tls_comm_section, comm_section, lcomm_section)
231         (bss_noswitch_section): New variables.
232         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
233         (get_noswitch_section): New function.
234         (get_block_for_section): Allow SECT to be null.
235         (unlikely_text_section_p): Use SECTION_STYLE.
236         (bss_initializer_p): New function.
237         (get_variable_section): Move earlier in file.  Take a new argument,
238         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
239         Return one of the new *_sections in such cases.
240         (get_block_for_decl): New function, extracting some logic from
241         use_blocks_for_decl_p.
242         (change_symbol_section): Remove in favor of...
243         (change_symbol_block): ...this new function.
244         (use_blocks_for_decl_p): Remove checks now performed by
245         get_block_for_decl.
246         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
247         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
248         (emit_local, emit_bss, emit_common): ...these new functions.
249         Return true if the alignment was honored.
250         (emit_tls_common): New function.
251         (asm_emit_uninitialised): Delete.
252         (assemble_variable_noswitch): New function, split out from...
253         (assemble_variable): ...here.  Don't make decisions about common
254         variables here.  Globalize all public decls that go into non-common
255         sections.  Check whether SYMBOL_REF_BLOCK is null.
256         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
257         (output_constant_pool): Likewise.
258         (init_varasm_once): Initialize the new section variables.
259         (have_global_bss_p): New function.
260         (categorize_decl_for_section): Use bss_initializer_p.
261         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
262         (place_block_symbol): Assert that the symbol must be in a block.
263         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
264         (TARGET_INITIALIZER): Include it.
265         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
266         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
267         (SECTION_MACH_DEP): Bump by two.
268         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
269         (unnamed_section): Mention SECTION_UNNAMED in comment.
270         (named_section): Likewise SECTION_NAMED.
271         (noswitch_section_callback): New type.
272         (noswitch_section): New structure.
273         (section): Add a noswitch_section alternative.
274         (SECTION_STYLE): New macro.
275         (tls_comm_section, comm_section, lcomm_section): Declare.
276         (bss_noswitch_section, have_global_bss_p): Declare.
277         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
278         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
279         Override.
280         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
281         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
282         Override.
283
284 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
285
286         * gcc/tree-vrp.c (execute_vrp): Return value.
287         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
288         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
289         * gcc/tree-complex.c (tree_lower_complex): Ditto.
290         (tree_lower_complex_O0): Ditto.
291         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
292         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
293         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
294         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
295         (execute_tail_calls): Ditto.
296         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
297         * gcc/tree.h (init_function_for_compilation): Ditto.
298         * gcc/ipa-cp.c (ipcp_driver): Ditto.
299         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
300         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
301         * gcc/final.c (compute_alignments): Ditto.
302         (rest_of_handle_final): Ditto.
303         (rest_of_handle_shorten_branches): Ditto.
304         (rest_of_clean_state): Ditto.
305         * gcc/omp-low.c (execute_expand_omp): Ditto.
306         (execute_lower_omp): Ditto.
307         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
308         * gcc/ipa-reference.c (static_execute): Ditto.
309         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
310         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
311         (rest_of_handle_machine_reorg): Ditto.
312         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
313         * gcc/flow.c (recompute_reg_usage): Ditto.
314         (rest_of_handle_remove_death_notes): Ditto.
315         (rest_of_handle_life): Ditto.
316         (rest_of_handle_flow2): Ditto.
317         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
318         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
319         (do_ssa_store_ccp): Ditto.
320         (execute_fold_all_builtins): Ditto.
321         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
322         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
323         * gcc/ipa-pure-const.c (static_execute): Ditto.
324         * gcc/cse.c (rest_of_handle_cse): Ditto.
325         (rest_of_handle_cse2): Ditto.
326         * gcc/web.c (rest_of_handle_web): Ditto.
327         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
328         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
329         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
330         * gcc/tree-nrv.c (tree_nrv): Ditto.
331         (execute_return_slot_opt): Ditto.
332         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
333         (create_structure_vars): Ditto.
334         * gcc/loop-init.c (rtl_loop_init): Ditto.
335         (rtl_loop_done): Ditto.
336         (rtl_move_loop_invariants): Ditto.
337         (rtl_unswitch): Ditto.
338         (rtl_unroll_and_peel_loops): Ditto.
339         (rtl_doloop): Ditto.
340         * gcc/gimple-low.c (lower_function_body): Ditto.
341         (mark_used_blocks): Ditto.
342         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
343         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
344         (cgraph_early_inlining): Ditto.
345         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
346         * gcc/jump.c (cleanup_barriers): Ditto.
347         (purge_line_number_notes): Ditto.
348         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
349         (rest_of_handle_if_after_reload): Ditto.
350         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
351         (tree_ssa_loop_im): Ditto.
352         (tree_ssa_loop_unswitch): Ditto.
353         (tree_vectorize): Ditto.
354         (tree_linear_transform): Ditto.
355         (tree_ssa_loop_ivcanon): Ditto.
356         (tree_ssa_empty_loop): Ditto.
357         (tree_ssa_loop_bounds): Ditto.
358         (tree_complete_unroll): Ditto.
359         (tree_ssa_loop_prefetch): Ditto.
360         (tree_ssa_loop_ivopts): Ditto.
361         (tree_ssa_loop_done): Ditto.
362         * gcc/predict.c (tree_estimate_probability): Ditto.
363         * gcc/recog.c (split_all_insns_noflow): Ditto.
364         (rest_of_handle_peephole2): Ditto.
365         (rest_of_handle_split_all_insns): Ditto.
366         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
367         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
368         (rest_of_handle_stack_adjustments): Ditto.
369         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
370         * gcc/function.c (instantiate_virtual_regs): Ditto.
371         (init_function_for_compilation): Ditto.
372         (rest_of_handle_check_leaf_regs): Ditto.
373         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
374         (rest_of_handle_gcse): Ditto.
375         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
376         * gcc/alias.c (rest_of_handle_cfg): Ditto.
377         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
378         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
379         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
380         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
381         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
382         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
383         * gcc/except.c (set_nothrow_function_flags): Ditto.
384         (convert_to_eh_region_ranges): Ditto.
385         (rest_of_handle_eh): Ditto.
386         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
387         (remove_unnecessary_notes): Ditto.
388         * gcc/except.h (set_nothrow_function_flags): Ditto.
389         (convert_to_eh_region_ranges): Ditto.
390         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
391         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
392         * gcc/tree-ssa-pre.c (do_pre): Ditto.
393         (execute_fre): Ditto.
394         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
395         (rest_of_handle_jump2): Ditto.
396         * gcc/tree-sra.c (tree_sra): Ditto.
397         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
398         (execute_mudflap_function_decls): Ditto.
399         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
400         (do_store_copy_prop): Ditto.
401         * gcc/ipa-prop.h (ipcp_driver): Ditto.
402         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
403         * gcc/tree-ssa-forwprop.c
404         (tree_ssa_forward_propagate_single_use_vars): Ditto.
405         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
406         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
407         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
408         (execute_late_warn_uninitialized): Ditto.
409         * gcc/rtl.h (cleanup_barriers): Ditto.
410         (split_all_insns_noflow): Ditto.
411         (purge_line_number_notes): Ditto.
412         (unshare_all_rtl): Ditto.
413         (remove_unnecessary_notes): Ditto.
414         (recompute_reg_usage): Ditto.
415         (variable_tracking_main): Ditto.
416         * gcc/integrate.c (emit_initial_value_sets): Ditto.
417         * gcc/integrate.h (emit_initial_value_sets): Ditto.
418         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
419         (execute_free_cfg_annotations): Ditto.
420         (execute_fixup_cfg): Ditto.
421         (execute_cleanup_cfg_pre_ipa): Ditto.
422         (execute_cleanup_cfg_post_optimizing): Ditto.
423         (execute_init_datastructures): Ditto.
424         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
425         * gcc/combine.c (rest_of_handle_combine): Ditto.
426         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
427         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
428         (rest_of_handle_reorder_blocks): Ditto.
429         (rest_of_handle_partition_blocks): Ditto.
430         * gcc/var-tracking.c (variable_tracking_main): Ditto.
431         * gcc/tree-profile.c (tree_profiling): Ditto.
432         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
433         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
434         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
435         (rest_of_handle_sched2): Ditto.
436         * gcc/basic-block.h (free_bb_insn): Ditto.
437         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
438         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
439         (remove_useless_stmts): Ditto.
440         (split_critical_edges): Ditto.
441         (execute_warn_function_return): Ditto.
442         (execute_warn_function_noreturn): Ditto.
443         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
444         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
445         * gcc/passes.c (execute_one_pass): Run additional
446         todos returned by execute function.
447         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
448         return a value.
449
450 2006-03-02  Richard Guenther  <rguenther@suse.de>
451
452         * tree-ssa-alias.c (find_used_portions): Consider taking
453         the address as making the variable not write-only.
454
455 2006-03-02  Nick Clifton  <nickc@redhat.com>
456
457         * config.gcc (default_use_cxa_atexit): Extend the description of
458         this configure variable.  Set its default value to "yes" for
459         Linux, NetBSD and ELF targets on the assumption that they will
460         use C libraries with the __cxa_atexit function.
461
462 2006-03-02  Ben Elliston  <bje@au.ibm.com>
463
464         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
465         parameter as unused to suppress a build warning.
466
467 2006-03-02  Ben Elliston  <bje@au.ibm.com>
468
469         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
470         config/dfp-bit.c.
471
472 2006-03-01  Roger Sayle  <roger@eyesopen.com>
473
474         PR other/26489
475         * gthr-posix.h (__gthrw2): Define to take three parameters, the
476         declared name, the weak reference name, and the typeof name.
477         (__gthrw): Avoid expanding the declared name suffix.
478         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
479
480 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
481
482         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
483         from DWARF 3.
484         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
485         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
486         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
487         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
488         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
489         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
490         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
491         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
492         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
493         DW_DS_leading_separate, DW_DS_trailing_separate): New.
494         (DW_END_default, DW_END_big, DW_END_little): New.
495         (DW_END_lo_user, DW_END_hi_user): Define.
496         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
497         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
498         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
499         DW_LANG_D): New.
500
501 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
502
503         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
504         Update all users.
505         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
506         Update all users.
507         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
508         Update all users.
509         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
510         Update all users.
511         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
512         to 'symbol_mem_tag'.
513         Update all users.
514         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
515         rename.
516
517 2006-03-01  Roger Sayle  <roger@eyesopen.com>
518
519         * builtins.c (fold_builtin_copysign): Delete unreachable code.
520
521 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
522
523         PR target/25761
524         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
525         MACHO_DYNAMIC_NO_PIC_P.
526         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
527
528 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
529
530         PR target/26389
531         * config/darwin-protos.h (darwin_asm_output_anchor):
532         Declare.
533         * config/darwin-sections.def (cstring_section):
534         Add SECTION_MERGE to the flags.
535         (literal4_section): Likewise.
536         (literal8_section): Likewise.
537         (objc_selector_refs_section): Likewise.
538         (objc_cls_refs_section): Likewise.
539         * config/darwin.c (darwin_asm_output_anchor): New
540         function.
541         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
542
543 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
544
545         Fix PR tree-optimization/26443
546         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
547         to todo and PROP_tmt_usage to properties_destroyed.
548         * tree-ssa-ccp.c (pass_ccp): Ditto.
549         (pass_store_ccp): Ditto.
550         * tree-ssa-dom.c (pass_dominator): Ditto.
551
552 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
553
554         * tree-ssa-operands.c: Cleanup whitespace.
555         (get_asm_expr_operands): Move before first invocation.
556         (get_indirect_ref_operands): Likewise.
557         (get_tmr_operands): Likewise.
558         (get_call_expr_operands): Likewise.
559         (append_def): Likewise.
560         (append_use): Likewise.
561         (append_v_may_def): Likewise.
562         (append_v_must_def): Likewise.
563         (add_call_clobber_ops): Likewise.
564         (add_call_read_ops): Likewise.
565         (add_stmt_operand): Likewise.
566         (add_virtual_operand): Likewise.
567         (build_ssa_operands): Likewise.
568
569 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
570
571         PR middle-end/26022
572         Revert:
573         PR middle-end/24437
574         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
575         with a call expr to ...
576         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
577
578 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
579
580         * tree-vrp.c (extract_range_from_assert): Remove special
581         handling for types with super-types.
582
583 2006-03-01  Ben Elliston  <bje@au.ibm.com>
584
585         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
586         and powerpc64-*-linux* configurations.
587         * config/t-dfprules: New file.
588
589         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
590         Compile dfp-bit.c from the source directory using -DWIDTH and
591         $DFP_CFLAGS to control the compilation of that file, rather than
592         generating width-specific versions in the build directory.
593         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
594         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
595
596 2006-02-28  Zack Weinberg  <zackw@panix.com>
597
598         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
599         continues to work.
600
601 2006-02-28  Eric Christopher  <echristo@apple.com>
602
603         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
604         Set up IN_LIBGCC definition of TARGET_64BIT.
605         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
606
607 2006-02-28  Roger Sayle  <roger@eyesopen.com>
608
609         PR middle-end/14752
610         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
611         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
612         cases via the construction of "expr != 0".
613
614 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
615
616         * alias.c (alias_invariant, alias_invariant_size): Remove.
617         (record_base_value): Remove.
618         (memrefs_conflict_p): Don't look at alias_invariant.
619         (end_alias_analysis): Don't free it.
620         * alias.h (record_base_value): Remove prototype.
621
622 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
623             Adam Nemet  <anemet@caviumnetworks.com>
624
625         * rtl.h (truncated_to_mode): Declare it.
626         (struct rtl_hooks): Add reg_truncated_to_mode hook.
627         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
628         (RTL_HOOKS_INITIALIZER): Include it.
629         * rtlhooks.c (reg_truncated_to_mode_general): New function.
630         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
631         reg_truncated_to_mode.
632         * rtlanal.c (truncated_to_mode): Define it.
633         * simplify-rtx.c (simplify_unary_operation_1): Use it.
634
635 2006-02-28  Jeff Law  <law@redhat.com>
636
637         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
638         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
639         the range allowed by TYPE_PRECISION.
640
641         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
642
643 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
644
645         PR tree-optimization/26419
646         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
647         values of n.
648
649 2006-02-27  Zack Weinberg  <zackw@panix.com>
650
651         * doc/md.texi: Fix typo in previous change.
652
653 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
654
655         * df.c: Remove.
656
657 2006-02-27  Zack Weinberg  <zackw@panix.com>
658
659         * rtl.def (define_constraint, define_register_constraint)
660         (define_memory_constraint, define_address_constraint): New MD forms.
661         * gensupport.c (process_rtx): Put define_constraint etc on the
662         predicate queue.
663         * genpreds.c (process_define_predicate): Adjust comment.  Validate
664         the name, and call validate_exp to validate the expression.
665         (mark_mode_tests, write_extract_subexp): Can assume correct input.
666         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
667         all callers changed.
668         (validate_exp, needs_variable, struct constraint_data)
669         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
670         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
671         (const_dbl_constraints, constraint_max_namelen)
672         (have_register_constraints, have_memory_constraints)
673         (have_address_constraints, have_address_constraints)
674         (have_extra_constraints, have_const_int_constraints)
675         (have_const_dbl_constraints, mangle, add_constraint)
676         (process_define_constraint, process_define_register_constraint)
677         (write_enum_constraint_num, write_lookup_constraint)
678         (write_insn_constraint_len, write_regclass_for_constraint)
679         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
680         (write_insn_extra_memory_constraint)
681         (write_insn_extra_address_constraint)
682         (write_satisfies_constraint_fns): New.
683         (write_tm_preds_h): If we have new-style constraint definitions,
684         prototype the functions generated from them, and define the
685         old constraint interface (still used by generic code) in terms of
686         those functions.
687         (write_insn_preds_c): If we have new-style constraint definitions,
688         generate all relevant functions from those definitions.
689         (main): Handle define_constraint etc.
690         * genoutput.c (struct constraint_data, indep_constraints)
691         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
692         (mdep_constraint_len): New data structures and functions, defined
693         #ifdef USE_MD_CONSTRAINTS.
694         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
695         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
696         use new logic to validate operand constraints against constraint
697         definitions.
698         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
699         defined.
700         * defaults.h: If none of the old-style constraint macros are
701         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
702         old-style macros; and poison REG_CLASS_FROM_LETTER,
703         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
704         EXTRA_CONSTRAINT.
705         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
706         * doc/md.texi: Document new constraint-definition mechanism and the
707         C interface it provides.  Remove references to old mechanism
708         elsewhere in the document.
709         (Machine Constraints): Use pathnames relative to gcc directory,
710         i.e. config/ARCH/FILE.  Change i386 section to refer to
711         config/i386/predicates.md; update that section to match docstrings.
712         * doc/tm.texi: Move all documentation of the old constraint-
713         definition macros to their own section, clearly mark as obsolete.
714
715         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
716         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
717         definitions.
718         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
719         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
720         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
721         constraint strings.
722         (splits and peepholes): Use satisfies_constraint_*.
723         * config/i386/i386.c (memory_address_length)
724         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
725
726 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
727
728         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
729         scalar operation to be put back into the loop.
730
731 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
732
733         PR other/26208
734         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
735         (extract_cie_info): Handle S flag in augmentation string.
736         (execute_cfa_program): If context->signal_frame, execute also
737         fs->pc == context->ra instructions.
738         (uw_frame_state_for): If context->signal_frame, don't subtract one
739         from context->ra to find FDE.
740         (uw_update_context_1): Set context->signal_frame to
741         fs->signal_frame.
742         (_Unwind_GetIPInfo): New function.
743         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
744         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
745         of _Unwind_GetIP.
746         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
747         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
748         * unwind-compat.c (_Unwind_GetIPInfo): New function.
749         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
750         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
751         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
752         * config/i386/linux-unwind.h (x86_fallback_frame_state,
753         x86_64_fallback_frame_state): Set fs->signal_frame.
754         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
755         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
756         (frob_update_context): Likewise.  Workaround missing S flag in
757         Linux 2.6.12 - 2.6.16 kernel vDSOs.
758         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
759         Remove the psw_addr + 1 hack.
760
761 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
762
763         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
764         with aggregates here.
765         (find_func_aliases): Remove code for &<aggregate> from here.
766
767 2006-02-26  Roger Sayle  <roger@eyesopen.com>
768
769         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
770         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
771         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
772         as (X & C) ne/eq 0.
773
774 2006-02-26  Roger Sayle  <roger@eyesopen.com>
775
776         PR middle-end/19983
777         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
778
779 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
780
781         * opts.c (decode_options): Do not handle flag_strength_reduce.
782         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
783         and OPT_fstrength_reduce.
784         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
785         flag_prefetch_loop_arrays for being nonzero.
786         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
787         no-ops.
788         (fprefetch-loop-arrays-rtl): Removed.
789         (flag_prefetch_loop_arrays): Do not specify the value.
790
791         * doc/passes.texi: Update documentation of loop optimizer
792         passes.
793         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
794         -frerun-loop-opt): Remove.
795
796 2006-02-26  Richard Guenther  <rguenther@suse.de>
797
798         PR tree-optimization/26421
799         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
800         in function calls that are ADDR_EXPRs as using the whole structure.
801
802 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
803
804         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
805         * tree-pass.h (pass_loop_optimize): Remove.
806         * passes.c (pass_loop_optimize): Never run it.
807         * toplev.c (backend_init): Don't call init_loop.
808         * opts.c (flag_loop_optimize_set): Remove.
809         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
810         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
811         the old RTL loop optimizer when profiling enabled.
812         * predict.c (tree_estimate_probability): Always strip builtin_expect.
813         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
814         pre-headers for the sake of the old RTL loop optimizer.
815         * Makefile.in: Remove all references to loop.o.
816
817         * doc/invoke.texi: Remove all references to -floop-optimize
818         and -frerun-loop-opt.
819
820 2006-02-26  Zack Weinberg  <zackw@panix.com>
821
822         * doc/md.texi (Machine Constraints): Refer to all files with paths
823         relative to gcc directory (i.e. config/CPU/file).  Add missing
824         @table @code ... @end table to M32C subsection.
825
826 2006-02-26  Roger Sayle  <roger@eyesopen.com>
827
828         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
829         (X & 1) == 0.
830         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
831
832 2006-02-26  Roger Sayle  <roger@eyesopen.com>
833             James A. Morrison  <phython@gcc.gnu.org>
834
835         PR middle-end/21137
836         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
837         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
838         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
839         signedness of the shift operation.
840
841 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
842
843         PR tree-optimization/26359
844         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
845
846 2006-02-25  Roger Sayle  <roger@eyesopen.com>
847
848         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
849         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
850         as X == 0, and some symmetry related transformations.
851         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
852
853 2006-02-25  Roger Sayle  <roger@eyesopen.com>
854
855         PR middle-end/23673
856         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
857         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
858         symmetry related transformations.  Fold (X^C1) == C2 as
859         X == (C1^C2).
860
861 2006-02-25  Juergen Weigert  <jw@suse.de>
862         Richard Guenther  <rguenther@suse.de>
863
864         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
865
866 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
867
868         * combine.c (gen_lowpart_or_truncate): Call
869         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
870
871 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
872
873         * doc/invoke.texi: Move -fopenmp description to "Options for
874         Code Generation".
875         Remove reference to -lgomp.
876
877 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
878
879         * doc/install.texi: Require GNU tar version 1.14.
880
881 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
882
883         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
884         * doc/invoke.texi (C++ Dialect Options): Document
885         -fno-use-cxa-get-exception-ptr.
886         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
887         * configure: Regenerate.
888         * c.opt (fuse-cxa-get-exception-ptr): New.
889         * c-opts.c (c_common_handle_option): Handle
890         OPT_fuse_cxa_get_exception_ptr.
891         * c-common.c (flag_use_cxa_atexit): Update documentation.
892         (flag_use_cxa_get_exception_ptr): New.
893         * c-common.h (flag_use_cxa_get_exception_ptr): New.
894         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
895         documentation.
896         (C_COMMON_OVERRIDE_OPTIONS): New.
897
898 2006-02-24  Roger Sayle  <roger@eyesopen.com>
899
900         PR middle-end/24952
901         * combine.c (try_combine): Explicitly check whether GET_CODE is
902         a SET or a CLOBBER, instead on checking that it isn't a USE.
903
904 2006-02-24  Roger Sayle  <roger@eyesopen.com>
905
906         * fold-const.c (fold_comparison): New subroutine of fold_binary
907         containing transformations common to both the equality and
908         ordering relational operators, factored out of fold_binary.
909         (fold_binary): Separate out the equality operators (EQ_EXPR
910         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
911         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
912         transformations common to both.
913         (fold_div_compare): Fix latent bugs in the previously unreachable
914         LT_EXPR and GE_EXPR cases.
915
916 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
917
918         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
919         decl libname for clog to __clog on AIX.
920
921         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
922
923 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
924
925         PR target/26453
926         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
927         output traceback table for thunks.  Localise rs6000_stack_info call.
928
929 2006-02-23  Roger Sayle  <roger@eyesopen.com>
930             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
931
932         * gthr-posix.h (__gthrw): Fix typo in comment.
933
934 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
935
936         * doc/cpp.texi (Character sets): Document that we do support
937         input files to be in any character set.
938
939 2006-02-23  Jeff Law  <law@redhat.com>
940
941         * tree.h (PHI_ARG_NONZERO): Remove.
942         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
943         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
944         node to the new node.
945
946         PR tree-optimization/26425
947         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
948         min/max, then assume its varying.
949
950 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
951
952         PR rtl-optimization/26316
953         * rtlanal.c (enum may_trap_p_flags): New.
954         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
955         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
956         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
957         (may_trap_after_code_motion_p): New function.
958         * loop-invariant.c (find_identical_invariants): Fix dump formating.
959         (find_invariant_insn): Use may_trap_after_code_motion_p.
960         * rtl.h (may_trap_after_code_motion_p): Declare.
961
962 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
963
964         * emit-rtl.c (immed_double_const): Cleanup.
965
966 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
967
968         Fix PR tree-optimization/26376
969         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
970         remove assert.
971
972 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
973
974         PR middle-end/26412
975         * gimplify.c (omp_add_variable): Guard variable size decl test with
976         DECL_SIZE (decl) check.
977
978 2006-02-23  Richard Guenther  <rguenther@suse.de>
979
980         PR middle-end/26439
981         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
982         like aggregate types.
983
984 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
985
986         * configure.ac: Add --with{,out}-long-double-128 configure option.
987         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
988         * configure: Rebuilt.
989         * config.in: Rebuilt.
990         * doc/install.texi (Options specification): Document
991         --with-long-double-128.
992
993         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
994         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
995         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
996         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
997
998 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
999
1000         * config/s390/s390.c (override_options): Handle
1001         TARGET_DEFAULT_LONG_DOUBLE_128.
1002
1003         * config/alpha/alpha.c (override_options): Handle
1004         TARGET_DEFAULT_LONG_DOUBLE_128.
1005
1006         * config/sparc/sparc.c (sparc_override_options): Handle
1007         TARGET_DEFAULT_LONG_DOUBLE_128.
1008
1009 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1010
1011         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1012         (real-install-headers-tar, real-install-headers-cpio)
1013         (real-install-headers-cp): New targets.
1014
1015 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1016
1017         * tree.h (variable_section): Delete.
1018         * varasm.c (variable_section): Delete.
1019
1020 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1021
1022         * install.texi: Add notes on install.texi2html.
1023         (Building in parallel): Do not use footnotes.
1024
1025 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1026
1027         PR libgomp/26234
1028         * doc/install.texi (Configuration): Document --disable-libgomp.
1029
1030 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1031
1032         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1033
1034 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1035
1036         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1037         (vec_extractv2df_0_sse): New.
1038
1039 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1040
1041         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1042         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1043         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1044         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1045         to the result of the expression.
1046         (def_cfa_1): Adjust.
1047         (frame_pointer_cfa_offset): Rename to...
1048         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1049         (convert_cfa_to_loc_list): Rename to...
1050         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1051         Pass it on to build_cfa_loc.
1052         (compute_frame_pointer_to_cfa_displacement): Rename to...
1053         (compute_frame_pointer_to_fb_displacement): ... this.  New
1054         offset parameter.  Use it in computation.
1055         (gen_subprogram_die): Compute cfa_fb_offset with the new
1056         macro, and use it to compute the fb loc list and the
1057         displacement.
1058
1059 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1060
1061         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1062         replaced with register_operand.
1063         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1064         non-DREG is expensive.
1065         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1066         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1067         involving memory.
1068
1069 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1070
1071         * doc/install.texi2html: Use set -e.
1072
1073 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1074
1075         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1076         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1077         * doc/invoke.texi (-fshared-data): Delete.
1078         * common.opt (fshared-data): Delete.
1079         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1080         (assemble_static_space): Remove #if 0 code.
1081         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1082         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1083         * config/cris/cris.h: Remove FIXME.
1084
1085 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1086
1087         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1088         hooks.
1089
1090 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1091
1092         PR middle-end/26379
1093         * combine.c (simplify_shift_const_1): Disable nested shifts
1094         optimization for vector shifts.
1095
1096 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1097
1098         PR tree-optimization/26361
1099         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1100         of unsigned integer types.
1101
1102 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1103
1104         * tree-chrec.c (eq_evolutions_p): New.
1105         * tree-chrec.h (eq_evolutions_p): Declared.
1106         * tree-data-ref.c: Fix formatting.
1107         (datadep_stats, dependence_stats): New.
1108         (gcd): Moved...
1109         (print_direction_vector): New.
1110         (dump_data_dependence_relation): Use print_direction_vector.
1111         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1112         (compute_subscript_distance): Static.
1113         (initialize_data_dependence_relation): Static.  Get the number
1114         of loops surrounding the references from the callers, and initialize
1115         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1116         base_object_differ_p analyzers.
1117         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1118         compute_overlap_steps_for_affine_1_2,
1119         analyze_subscript_affine_affine): Count the classified dependences.
1120         Print a message when a test failed.
1121         (can_use_analyze_subscript_affine_affine): New.
1122         (analyze_siv_subscript): Compute the data dependences on symbolic
1123         scevs that verify can_use_analyze_subscript_affine_affine.
1124         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1125         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1126         Handle symbolic scevs.
1127         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1128         analyzed.
1129         (subscript_dependence_tester): Moved...
1130         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1131         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1132         DDR_SIZE_VECT instead of getting it in parameter.
1133         (subscript_dependence_tester): ... here.  Take as a parameter
1134         loop_nest_depth.  Call build_classic_dist_vector and
1135         build_classic_dir_vector.
1136         (compute_affine_dependence): Update subscript_dependence_tester
1137         parameters.  Update datadep_stats counters.  Call
1138         compute_subscript_distance.
1139         (compute_self_dependence): Save the dist and dir vectors.  Call
1140         compute_subscript_distance.
1141         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1142         (compute_all_dependences): Reorder parameters as they were before
1143         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1144         compute_subscript_distance.  Update the use of
1145         compute_affine_dependence and initialize_data_dependence_relation.
1146         (find_data_references_in_loop): Handle COMPONENT_REF.
1147         (compute_data_dependences_for_loop): Initialize dependence_stats.
1148         Don't call build_classic_dist_vector and build_classic_dir_vector.
1149         Update the parameters of initialize_data_dependence_relation and
1150         compute_all_dependences.  Print the statistics from datadep_stats.
1151         (analyze_all_data_dependences): Static.  Not used until the pass for
1152         checking the data dependences is contributed.
1153         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1154         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1155         (initialize_data_dependence_relation, compute_affine_dependence,
1156         analyze_all_data_dependences, compute_subscript_distance): Removed.
1157         (print_direction_vector): New.
1158         * lambda.h (gcd): ... here.
1159         (lambda_vector_gcd): Moved here from gcd_vector.
1160         * lambda-code.c (gcd, gcd_vector): Removed.
1161         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1162         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1163
1164 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1165
1166         * ipa-type-escape.c: Tidy some comments and white space.
1167         * tree-ssa-operands.c: Likewise.
1168
1169 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1170
1171         PR tree-opt/25879
1172         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1173         (dump_decl_name): Do not walk the decl tree chains.
1174         * tree-pass.h (TDF_CHAIN): Remove.
1175
1176 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1177
1178         * Makefile.in (C): Remove
1179         (PROTO): Remove
1180         (.PHONY): Remove C and PROTO
1181
1182 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1183
1184         PR middle-end/26236
1185         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1186         deprecated CHAR_TYPE tree code.
1187
1188 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1189
1190         * configure.ac (target_list): Add install-info, dvi, html.
1191         * configure: Regenerate.
1192
1193         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1194         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1195         treelang/Make-lang.in: Do not use double-colon rules.
1196
1197 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1198
1199         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1200         (TMT_USED_ALONE): New macro.
1201         * tree-pass.h (PROP_tmt_usage): New property.
1202         (TODO_update_tmt_usage): New todo.
1203         * tree-ssa-alias.c (updating_used_alone): New variable.
1204         (recalculate_used_alone): New function.
1205         (compute_may_aliases): Set updating_used_alone, call
1206         recalculate_used_alone.
1207         * tree-sra.c (pass_sra): Note that this pass destroys
1208         PROP_tmt_usage, and add TODO_update_tmt_usage.
1209         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1210         * tree-flow.h (updating_used_alone): Prototype.
1211         (recalculate_used_alone): Ditto.
1212         * passes.c (execute_todo): Add code to set updating_used_alone,
1213         and call recalculate.
1214         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1215         for clobber if used alone, and add assert to verify used_alone
1216         status.
1217
1218 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1219
1220         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1221         for non tls symbols added.
1222         (legitimize_address): Do nothing for PLUS expressions if one of the
1223         addends is a tls symbol reference.
1224
1225 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1226
1227         PR bootstrap/25476
1228
1229         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1230
1231         * Makefile.in (BOOTSTRAPPING): New.
1232         (quickstrap): New definition if BOOTSTRAPPING=yes.
1233
1234         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1235         * configure.ac: Substitute all_selected_languages with the languages
1236         that were configured.  For all the other variables except
1237         lang_specs_files, include all the languages in the tree.
1238         * configure: Regenerate.
1239
1240         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1241         if there is one.  Run the commands to run fixincludes in the same
1242         subshell.
1243
1244         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1245         * doc/install.texi: Document exact conventions for searching target tools.
1246         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1247         something more about building an Ada cross-compiler.  Don't list GNU Make
1248         requirements which affect all platforms.
1249
1250 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1251
1252         PR middle-end/19543
1253         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1254         only equivalent if the have both the same mode and precision.
1255
1256 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1257
1258         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1259
1260 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1261             Steven Bosscher  <stevenb.gcc@gmail.com>
1262
1263         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1264         constant pool references to identify stack mode constants.
1265         * rtlanal.c (constant_pool_constant_p): New predicate to check
1266         whether operand is a floating point constant in the pool.
1267         * rtl.h (constant_pool_constant_p): Prototype here.
1268         * loop.c (scan_loop): Avoid hoisting constants from the constant
1269         pool on STACK_REGS targets.
1270         (load_mems): Likewise.
1271         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1272         loads into x87 registers expensive in terms of register pressure.
1273
1274 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1275
1276         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1277         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1278
1279 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1280
1281         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1282         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1283
1284 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1285
1286         * doc/invoke.texi: Document -fipa-pta.
1287         * common.opt: Add ipa-pta option.
1288         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1289         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1290         (do_ds_constraint): Ditto.
1291         (get_constraint_for): Only add to referenced_vars if
1292         referenced_vars exists.
1293         (insert_into_field_list): Rewrite to do this unsorted.
1294         (insert_into_field_list_sorted): Rename old insert_into_field_list
1295         to this.
1296         (create_function_info_for): Use insert_into_field_list_sorted.
1297         (create_variable_info_for): Rewrite so it uses unsorted version,
1298         since the field list is sorted.
1299         (intra_create_variable_infos): Only add to referenced_vars if
1300         referenced_vars exists.
1301         (ipa_pta_execute): Init heapvars, and delete when done.
1302         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1303
1304 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1305
1306         * doc/install.texi: Add missing `@samp'.
1307
1308 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1309
1310         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1311         Use the arguments.
1312
1313 2006-02-18  Mark Wielaard  <mark@klomp.org>
1314
1315         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1316         who added new 4.1 features, bug fixes and integration support.
1317
1318 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1319
1320         PR target/26350
1321         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1322         MEM for ABI_V4 pic.
1323
1324 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1325
1326         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1327         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1328         (copy_insn_1): Likewise.  Don't copy each field individually.
1329         Reindent.
1330         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1331         of RTX_SIZE.
1332         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1333         * rtl.c (rtx_size): Rename variable to...
1334         (rtx_code_size): ...this.
1335         (rtx_size): New function.
1336         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1337         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1338         Reindent.
1339         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1340         * rtl.h (rtx_code_size): New variable.
1341         (rtx_size): Change from a variable to a function.
1342         (RTX_SIZE): Rename to...
1343         (RTX_CODE_SIZE): ...this.
1344
1345         PR target/9703
1346         PR tree-optimization/17106
1347         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1348         (Anchored Addresses): New section.
1349         * doc/invoke.texi (-fsection-anchors): Document.
1350         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1351         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1352         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1353         * hooks.c (hook_bool_mode_rtx_false): New function.
1354         * hooks.h (hook_bool_mode_rtx_false): Declare.
1355         * gengtype.c (create_optional_field): New function.
1356         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1357         SYMBOL_REF_IN_BLOCK_P is true.
1358         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1359         (min_anchor_offset, max_anchor_offset): Likewise.
1360         (use_anchors_for_symbol_p): New hook.
1361         * toplev.c (compile_file): Call output_object_blocks.
1362         (target_supports_section_anchors_p): New function.
1363         (process_options): Check that -fsection-anchors is only used on
1364         targets that support it and when -funit-at-a-time is in effect.
1365         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1366         if the decl doesn't have one.
1367         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1368         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1369         of force_const_mem through use_anchored_address.
1370         (expand_expr_constant): New function.
1371         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1372         calling expand_expr for INDIRECT_REF.
1373         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1374         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1375         * expr.h (use_anchored_address): Declare.
1376         * loop-unroll.c: Don't declare rtx vectors here.
1377         * explow.c: Include output.h.
1378         (validize_mem): Call use_anchored_address.
1379         (use_anchored_address): New function.
1380         * common.opt (-fsection-anchors): New switch.
1381         * varasm.c (object_block_htab, anchor_labelno): New variables.
1382         (hash_section, object_block_entry_eq, object_block_entry_hash)
1383         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1384         (use_blocks_for_decl_p, change_symbol_section): New functions.
1385         (get_variable_section): New function, split out from assemble_variable.
1386         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1387         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1388         symbol has already been created.
1389         (assemble_variable_contents): New function, split out from...
1390         (assemble_variable): ...here.  Don't output any code for
1391         block symbols; just pass them to place_block_symbol.
1392         Use get_variable_section and assemble_variable_contents.
1393         (get_constant_alignment, get_constant_section, get_constant_size): New
1394         functions, split from output_constant_def_contents.
1395         (build_constant_desc): Create a block symbol if use_object_blocks_p
1396         says so.  Or into SYMBOL_REF_FLAGS.
1397         (assemble_constant_contents): New function, split from...
1398         (output_constant_def_contents): ...here.  Don't output any code
1399         for block symbols; just pass them to place_section_symbol.
1400         Use get_constant_section and get_constant_alignment.
1401         (force_const_mem): Create a block symbol if use_object_blocks_p and
1402         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1403         (output_constant_pool_1): Add an explicit alignment argument.
1404         Don't switch sections here.
1405         (output_constant_pool): Adjust call to output_constant_pool_1.
1406         Switch sections here instead.  Don't output anything for block symbols;
1407         just pass them to place_block_symbol.
1408         (init_varasm_once): Initialize object_block_htab.
1409         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1410         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1411         (place_block_symbol, get_section_anchor, output_object_block)
1412         (output_object_block_htab, output_object_blocks): New functions.
1413         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1414         (TARGET_ASM_OUT): Include it.
1415         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1416         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1417         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1418         (TARGET_INITIALIZER): Include them.
1419         * rtl.c (rtl_check_failed_block_symbol): New function.
1420         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1421         (block_symbol, object_block): New structures.
1422         (rtx_def): Add a block_symbol field to the union.
1423         (BLOCK_SYMBOL_CHECK): New macro.
1424         (rtl_check_failed_block_symbol): Declare.
1425         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1426         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1427         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1428         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1429         * output.h (output_section_symbols): Declare.
1430         (object_block): Name structure.
1431         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1432         (default_use_anchors_for_symbol_p): Declare.
1433         * Makefile.in (RTL_BASE_H): Add vec.h.
1434         (explow.o): Depend on output.h.
1435         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1436         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1437         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1438         (rs6000_use_blocks_for_constant_p): New function.
1439
1440 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1441
1442         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1443
1444 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1445
1446         PR tree-opt/25680
1447         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1448         IMAGPART_EXPR.
1449
1450 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1451
1452         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1453         is_aliased.
1454         Update all users.
1455
1456 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1457
1458         PR middle-end/26334
1459         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1460         instead of DECL_REGISTER.
1461
1462 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1463
1464         PR ada/13408
1465         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1466
1467 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1468
1469         PR target/24837
1470         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1471         * opth-gen.awk: Handle Var and InverseMask together.
1472         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1473         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1474         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1475         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1476         used together.
1477         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1478         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1479         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1480         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1481         LINUX_DYNAMIC_LINKER): Define.
1482         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1483         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1484         TARGET_GLIBC.
1485         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1486         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1487         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1488         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1489         (TARGET_C99_FUNCTIONS): Don't define.
1490         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1491         GLIBC_DYNAMIC_LINKER.
1492         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1493         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1494         GLIBC_DYNAMIC_LINKER64): Define.
1495         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1496         LINUX_DYNAMIC_LINKER64.
1497         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1498         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1499         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1500         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1501         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1502         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1503         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1504         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1505         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1506         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1507         and LINUX_DYNAMIC_LINKER32.
1508         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1509         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1510         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1511         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1512         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1513         TARGET_GLIBC.
1514         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1515         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1516         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1517         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1518         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1519         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1520         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1521         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1522         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1523         LINUX_DYNAMIC_LINKER): Define.
1524         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1525         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1526         GLIBC_DYNAMIC_LINKER64): Define.
1527         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1528         LINUX_DYNAMIC_LINKER64.
1529         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1530         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1531         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1532         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1533         LINUX_DYNAMIC_LINKER): Define.
1534         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1535         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1536         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1537         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1538         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1539         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1540         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1541         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1542         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1543         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1544         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1545         * doc/invoke.texi (-muclibc): Remove caveat about supported
1546         targets.
1547
1548 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1549
1550         * doc/cpp.texi (__TIMESTAMP__): Document.
1551
1552 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1553
1554         PR middle-end/25600
1555         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1556         C is one less than the width of X (and related transformations).
1557         * simplify-rtx.c (simplify_unary_operation_1): Transform
1558         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1559         depending on STORE_FLAG_VALUE, were C is one less then the
1560         width of X.
1561
1562 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1563
1564         Fix PR tree-optimization/26341
1565         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1566         about NAME_MEMORY_TAG's.
1567
1568 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1569
1570         PR target/26255
1571         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1572         with hardware float support, and software float support.  Add fcpy
1573         alternative to hardware patterns.  Add alternatives to copy between
1574         general and floating-point registers to the 32-bit pattern.
1575         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1576         secondary reload to load a QI or HI mode constant into a floating
1577         point register.
1578         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1579         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1580
1581 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1582
1583         PR target/26272
1584         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1585         pc to the pattern.
1586         (load_macho_picbase_di): Likewise.
1587
1588 2006-02-16  Jeff Law  <law@redhat.com>
1589
1590         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1591         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1592         (ssa_name_nonzero_p): Likewise.
1593         (get_value_range): Return NULL if VRP is not running.
1594         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1595         VRP routines do not discover a range.
1596         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1597         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1598         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1599         (tree_expr_nonnegative_p): Similarly.
1600         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1601         (restore_nonzero_vars_to_original_value): Remove.
1602         (unsafe_associative_fp_binop): Remove.
1603         (tree_ssa_dominator_optimize): Remove initialization and
1604         finalization of nonzero_vars and nonzero_vars_stack.
1605         (dom_opt_initialize_block): No longer push marker on
1606         nonzero_vars_stack.
1607         (dom_opt_finalize_block): No longer call
1608         restore_nonzero_vars_to_original_value.
1609         (record_equivalences_from_phis): No longer look for
1610         nonzero PHI arguments.
1611         (cprop_into_successor_phis): No longer propagate nonzero
1612         property into PHI arguments.  Lose unused argument.  Caller
1613         updated.
1614         (record_equivalences_from_stmt): No longer record nonzero
1615         values for SSA_NAMEs.
1616         (lookup_avail_expr): No longer use nonzero_vars.
1617
1618         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1619         for sizetype when sizetype is unsigned.
1620
1621 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1622
1623         PR rtl-optimization/25603
1624         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1625         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1626         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1627         with new meaning of SETS.
1628
1629 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1630
1631         PR target/20353
1632         PR target/24578
1633         PR target/24837
1634         * config/linux.opt: New file.
1635         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1636         LINUX_DYNAMIC_LINKER): Define.
1637         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1638         * config.gcc (*-*-linux*): Define extra_options.
1639         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1640         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1641         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1642         GLIBC_DYNAMIC_LINKER.
1643         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1644         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1645         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1646         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1647         * doc/invoke.texi (GNU/Linux Options): New section.
1648
1649 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1650
1651         * config/sparc/sparc.md (setjmp): Rewrite.
1652         (setjmp_32): Delete.
1653         (setjmp_64): Likewise.
1654
1655 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1656
1657         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1658          previous change.
1659
1660 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1661
1662         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1663         read-write uses.
1664
1665 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1666
1667         PR rtl-optimization/26296
1668         * Makefile.in (loop-invariant.c): Add except.h dependency.
1669         * loop-invariant.c: Include except.h.
1670         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1671
1672 2005-02-16  Paul Brook  <paul@codesourcery.com>
1673
1674         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1675         for reloads.
1676
1677 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1678
1679         PR rtl-optimization/25636
1680         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1681         when deciding whether an insn is an initializing insn.
1682
1683 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1684
1685         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1686         (tree_code_size): Ditto.
1687         * tree.h (struct tree_memory_tag): Remove parent_var.
1688         (struct tree_struct_field_tag): New.
1689         (SFT_OFFSET): New.
1690         (SFT_SIZE): New.
1691         (union tree_node): Add sft member.
1692         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1693         specially here.
1694         (create_sft): Add size and offset argument, set SFT_OFFSET and
1695         SFT_SIZE.
1696         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1697         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1698         * tree-flow-inline.h (get_subvar_at): Update for
1699         SFT_OFFSET/SFT_SIZE.
1700         (var_can_have_subvars): Ditto.
1701         (overlap_subvar): Ditto.
1702         * print-tree.c (print_node): Print out interesting things for
1703         SFT's.
1704         * tree-flow.h (struct subvar): Remove offset and size members.
1705         * tree-ssa-operands.c (get_expr_operands): Update for
1706         get_indirect_ref_operands changes.
1707         (get_indirect_ref_operands): Call add_virtual_operand instead of
1708         add_stmt_operand.  Only recurse on base var if requested.
1709         (access_can_touch_variable): New function.
1710         (add_stmt_operand): Split virtual operand handling into ...
1711         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1712         arguments.  Prune alias sets.
1713         (add_call_clobber_ops): Call add_virtual_operand.
1714
1715 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1716
1717         PR middle-end/26300
1718         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1719
1720         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1721         than TREE_CODE as index into omp_clause_num_ops array.
1722
1723 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1724
1725         PR rtl-optimization/26184
1726         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1727         uses_of_defs.
1728         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1729         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1730         must_precede, must_follow and tobe_scheduled.
1731
1732         PR other/26147
1733         * opts.c (common_handle_option): Free new_option pointer.
1734         * df-core.c (df_analyze): Free postorder pointer.
1735
1736 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1737
1738         * Makefile.in: Fix the examples about the use of stamps
1739
1740 2006-02-15  Michael Matz  <matz@suse.de>
1741
1742         PR middle-end/22275
1743
1744         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1745         influenced by maximum_field_alignment or DECL_PACKED.
1746         (update_alignment_for_field): Ditto.
1747         (place_field): Ditto.
1748         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1749         this behaviour.
1750
1751 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1752
1753         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1754         (debug_flow_info): Pass it.
1755         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1756         * bb-reorder.c (reorder_basic_blocks): Likewise.
1757         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1758         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1759         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1760         * gcse.c (gcse_main, bypass_jumps): Likewise.
1761         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1762         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1763         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1764         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1765         * rtl.h (dump_flow_info): Adjust prototype.
1766         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1767         * var-tracking.c (variable_tracking_main): Likewise.
1768         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1769         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1770         options.
1771
1772 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1773
1774         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1775         construction.
1776
1777 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1778
1779         PR tree-optimization/26209
1780         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1781         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1782         eh edges.
1783         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1784
1785 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1786
1787         PR middle-end/23670
1788         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1789         (X,Y) and the corresponding symmetry related transformations.
1790         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1791         (X,Y) and its symmetry related transformations.
1792
1793 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1794
1795         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1796         and GEU.
1797
1798 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1799
1800         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1801
1802 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1803
1804         PR bootstrap/26053
1805         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1806         support COMDAT group.
1807         * configure: Regenerate.
1808
1809 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1810
1811         PR middle-end/26279
1812         PR middle-end/26280
1813         PR middle-end/26283
1814         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1815
1816 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1817
1818         Fix PR tree-optimization/26260
1819
1820         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1821         param.
1822         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1823         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1824         * tree-ssa-structalias.c (create_variable_info_for): Use
1825         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1826
1827 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1828
1829         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1830         Document.
1831         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1832         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1833         of the ending condition.
1834         * tree-ssa-loop-manip.c: Include params.h.
1835         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1836         tree_unroll_loop): New functions.
1837         * tree-pass.h (pass_loop_prefetch): Declare.
1838         * loop.c (rest_of_handle_loop_optimize): Test for
1839         -fprefetch-loop-arrays-rtl.
1840         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1841         * timevar.def (TV_TREE_PREFETCH): New timevar.
1842         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1843         pass_loop_prefetch): New.
1844         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1845         (cleanup_tree_cfg_loop): Call scev_reset.
1846         * common.opt (fprefetch-loop-arrays-rtl): Add.
1847         * tree-ssa-loop-prefetch.c: New file.
1848         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1849         (new_temp_expr_table): Initialize expr_vars.
1850         (free_temp_expr_table): Cleanup expr_vars.
1851         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1852         expressions from being merged into one.
1853         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1854         (struct tree_niter_desc): Add control, bound and cmp fields.
1855         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1856         Declare.
1857         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1858         (tree-cfgcleanup.o): Add SCEV_H dependency.
1859         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1860         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1861
1862 2006-02-14  Richard Guenther  <rguenther@suse.de>
1863
1864         PR tree-optimization/26258
1865         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1866         in PHI argument processing.
1867
1868 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1869
1870         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1871         new expression in the requested machine mode.
1872
1873 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1874
1875         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1876         directly, instead let do_compare_rtx_and_jump handle this for us.
1877         * expr.c (expand_expr_real_1): Likewise.
1878         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1879         before do_jump_by_parts_greater.
1880         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1881         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1882
1883 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1884
1885         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1886
1887 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1888
1889         PR rtl-optimization/26235
1890         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1891         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1892         format.
1893
1894 2006-02-13  Jeff Law  <law@redhat.com>
1895
1896         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1897         TRUTH_XOR_EPR.
1898
1899 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1900
1901         PR middle-end/26092
1902         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1903         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1904         first to verify it is still a builtin.
1905
1906 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1907
1908         * dwarf2out.c (base_type_die): Don't add AT_name here.
1909         (subrange_type_die): Don't add AT_name here.
1910         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1911
1912 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1913
1914         PR rtl-optimization/26247
1915         PR rtl-optimization/26248
1916         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
1917
1918 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
1919
1920         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
1921         * config/fixtfdi.c: Likewise.
1922         * config/fixunstfdi.c: Likewise.
1923         * config/floatditf.c: Likewise.
1924
1925 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1926
1927         PR middle-end/24427
1928         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
1929         into (X,C2) if C1 is a subset of the bits of C2.  Transform
1930         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
1931         (X&(C1&~C2))|C2.
1932         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1933
1934 2006-02-13  Josh Conner  <jconner@apple.com>
1935
1936         PR target/25376
1937         * varasm.c (function_section): Check for section name before
1938         calling select_section on targets that define
1939         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1940         unlikely_text_section instead of hot_function_section if
1941         first_function_block_is_cold.
1942
1943 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1944
1945         PR middle-end/25335
1946         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1947
1948 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1949
1950         PR rtl-optimization/26222
1951         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1952         after tree->rtl expansion.
1953         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1954         before passing it to emit_move_insn.
1955
1956 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1957
1958         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1959         default.
1960         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1961         Clarify documentation.
1962         * c-common.h (warn_write_strings): Remove.
1963         * c-common.c (warn_write_strings): Likewise.
1964         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1965         default for C++.
1966
1967 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1968
1969         PR middle-end/25724
1970         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1971         (do_jump_parts_zero_rtx): New function renamed from
1972         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1973         (do_jump_parts_equality_rtx): New function split out from
1974         do_jump_parts_equality.  Old implementation renamed as above.
1975         Call do_jump_parts_zero_rtx if either operand is zero.
1976         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1977         do all of the heavy lifting.
1978         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1979         calling either do_jump_by_parts_greater_rtx or
1980         do_jump_by_parts_equality_rtx.
1981         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1982         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1983         moved to do_compare_rtx_and_jump, call it directly.
1984         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1985         mode argument.  Call do_compare_rtx_and_jump.
1986         (emit_case_nodes): Update calls to do_jump_if_equal.
1987
1988 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1989
1990         PR rtl-optimization/26225
1991         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1992
1993 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1994
1995         PR rtl-optimization/26232
1996         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1997
1998 2006-02-11  Jason Merrill  <jason@redhat.com>
1999
2000         PR tree-opt/24365
2001         * tree-inline.c (declare_return_variable): Just don't use the
2002         modify target if it's a gimple complex reg and the return slot
2003         isn't.
2004
2005 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2006
2007         * doc/contrib.texi: Update my entry.
2008
2009 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2010
2011         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2012
2013 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2014
2015         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2016         expensive.
2017
2018 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2019
2020         * doc/invoke.texi (-floop-optimize2): Removed.
2021         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2022         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2023         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2024         * common.opt (floop-optimize2): Removed.
2025         (fmove-loop-invariants): Enabled by default.
2026
2027 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2028
2029         * tree-if-conv.c (combine_blocks): Free the result of
2030         get_loop_exit_edges.
2031
2032 2006-02-10  Jeff Law  <law@redhat.com>
2033
2034         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2035
2036         PR tree-optimization/26213
2037         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2038         loop trying to follow SSA_NAME_VALUE chains.
2039
2040 2006-02-10  Richard Guenther  <rguenther@suse.de>
2041
2042         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2043         deal with structures that end in implicitly variable sized arrays.
2044
2045 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2046
2047         PR rtl-optimization/24762
2048         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2049         eh edges.
2050
2051 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2052
2053         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2054         (struct ivopts_data): Add regs_used field.
2055         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2056         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2057         instead of loop_data->regs_used;
2058         (free_loop_data): Do not free aux fields for loops.
2059         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2060         and tree_ssa_iv_optimize_finalize.
2061
2062 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2063
2064         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2065
2066 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2067
2068         PR target/26141
2069         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2070         computing the effective result type.
2071
2072 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2073
2074         PR inline-asm/16194
2075         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2076         (tree_overlaps_hard_reg_set): Declare.
2077         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2078         type and signature to match function type expected by walk_tree.
2079         (tree_overlaps_hard_reg_set): New function.
2080         (decl_conflicts_with_clobbers_p): Rename to:
2081         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2082         Use tree_overlaps_hard_reg_set.  Changed caller.
2083         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2084         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2085         * cris.c (cris_md_asm_clobbers): Likewise.
2086
2087 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2088
2089         * reload1.c (emit_input_reload_insns): Delete code that tries to
2090         inherit using find_equiv_reg.
2091
2092 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2093
2094         * c-common.h (flag_const_strings): Don't declare.
2095         * c-common.c (flag_const_strings): Remove.
2096         * c.opt (fconst_strings): Remove.
2097         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2098         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2099         (c_common_init_options): Don't set flag_const_strings.
2100         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2101
2102 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2103
2104         * arm.md (tlobits_cbranch): New pattern.
2105         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2106         testing a single bit.
2107
2108 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2109
2110         PR tree-opt/26179
2111         * tree-ssa-pre.c (create_component_ref_by_pieces):
2112         Handle RETURN_DECL like VAR_DECL.
2113
2114 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2115
2116         PR middle-end/26134
2117         * fold-const.c (fold_indirect_ref_1): Fold
2118         "*(foo *)&complexfoo" to "__real__ complexfoo"
2119         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2120
2121 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2122
2123         * tree-flow-inline.h (var_can_have_subvars):
2124         Volatile variables should not have subvariables.
2125
2126 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2127
2128         PR 26180
2129         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2130         multiplying unsigned values.
2131         Tidy comments.
2132
2133 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2134
2135         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2136
2137 2006-02-08  Jason Merrill  <jason@redhat.com>
2138
2139         PR c++/25979
2140         * tree.def: Elaborate on difference from MODIFY_EXPR.
2141         * doc/c-tree.texi (INIT_EXPR): Likewise.
2142         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2143         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2144         (gimplify_target_expr): Likewise.
2145         (gimplify_cond_expr): Remove target handling.
2146         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2147         (gimplify_expr): Clobber it here.
2148         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2149         Do return slot optimization if we have an INIT_EXPR.
2150
2151         PR tree-opt/24365
2152         * tree-inline.c (declare_return_variable): Also clear
2153         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2154
2155         PR c++/16405
2156         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2157
2158         PR middle-end/22439
2159         * gimplify.c (gimplify_one_sizepos): Fix typo.
2160
2161 2006-02-08  Jeff Law  <law@redhat.com>
2162
2163         PR tree-optimization/21417
2164         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2165         across a backedge if the control statement at the end of the
2166         block is data dependent on other statements in the same block.
2167         (record_temporary_equivalences_from_stmts): Remove over-conservative
2168         test for threading across backedges.
2169
2170         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2171         control statement, handle all three special cases in the same
2172         manner as they all have the same desired solution.  No longer
2173         special case edge flag updating when the post dominator is
2174         the exit block.
2175
2176 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2177
2178         * tree.def (CHAR_TYPE): Remove.
2179         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2180         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2181         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2182         (gen_string_type_die): Delete unreachable function.
2183
2184         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2185         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2186         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2187         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2188         * builtins.c (type_to_class): Likewise.
2189         * fold-const.c (fold_convert, build_range_check,
2190         merge_ranges): Likewise.
2191         * expr.c (count_type_elements): Likewise.
2192         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2193         * stor-layout.c (layout_type): Likewise.
2194         * ipa-type-escape.c (type_to_consider): Likewise.
2195         * gimplify.c (omp_firstprivatize_type_sizes,
2196         gimplify_type_sizes): Likewise.
2197         * explow.c (promote_mode): Likewise.
2198         * tree-sra.c (is_sra_scalar_type): Likewise.
2199         * varasm.c (output_constant): Likewise.
2200         * tree-inline.c (remap_type_1): Likewise.
2201         * convert.c (convert_to_pointer, convert_to_real,
2202         convert_to_integer, convert_to_complex): Likewise.
2203
2204 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2205
2206         * df-scan.c (df_def_record_1): A set destination may
2207         be a parallel regardless of mode.
2208
2209 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2210
2211         PR target/22209
2212         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2213         * config/mips/_tilib.c: Remove.
2214         * config/fixtfdi.c: New libgcc source file.
2215         * config/fixunstfdi.c: New source file.
2216         * config/floatditf.c: New source file.
2217         * config/floatunditf.c: New souce file.
2218         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2219         files above instead of config/mips/_tilib.c.
2220         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2221
2222 2006-02-08  Jeff Law  <law@redhat.com>
2223
2224         PR tree-optimization/26169
2225         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2226         threading jumps.
2227
2228 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2229
2230         * df.h (DF_REG_SIZE): Return the length of the initialized
2231         part of the array.
2232
2233 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2234
2235         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2236         __muldf3): Return a correctly signed zero.
2237
2238 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2239
2240         * passes.c (register_one_dump_file): Accept the current properties
2241         instead of pass number.  Adjust call to dump_register.  Remove
2242         duplicated code.
2243         (register_dump_files): Now a wrapper around...
2244         (register_dump_files_1): ... this one.  Do not modify the pass
2245         structure.
2246         (next_pass_1): Cosmetic fix.
2247         (execute_todo): Keep second parameter only.  Use curr_properties
2248         instead of fetching it from the pass structure.  Check and set
2249         last_verified.
2250         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2251         instead of fetching it from the pass structure.  Fix calls to
2252         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2253         after running the pass.  Reset last_verified.
2254         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2255         at the beginning.
2256         (FIRST_AUTO_NUMBERED_DUMP): New.
2257         (dump_register): Remove "num" parameter, assign it within the
2258         function.
2259         (get_dump_file_name): Modify template for dumps.
2260         * tree-dump.h (dump_register): Adjust prototype.
2261         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2262         (PROP_trees): Add PROP_gimple_lomp.
2263         (TODO_set_props): New.
2264         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2265         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2266         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2267
2268 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2269
2270         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2271         (sparc64-*-linux*): Likewise.
2272         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2273         * config/sparc/t-linux: New file.
2274         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2275         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2276         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2277         -m32 -mlong-double-128.
2278
2279         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2280         * config/alpha/t-linux: New file.
2281         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2282
2283         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2284         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2285         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2286         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2287         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2288         (CPP_ARCH32_SPEC): Remove.
2289
2290 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2291
2292         PR tree-optimization/26145
2293         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2294         bbs pointer.
2295
2296 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2297
2298         PR target/26109
2299         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2300         >= 240000 when generating code for SOM runtime.
2301         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2302         to $$dyncall when generating code for SOM runtime..
2303
2304 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2305
2306         PR c++/18150
2307         * doc/invoke.texi (-Wsequence-point): Update documentation
2308         that -Wsequence-point is implemented for C++ as well.
2309
2310 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2311
2312         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2313         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2314         (LIB_SPEC): Likewise.
2315         * doc/invoke.texi (SPARC options): Document -pthread.
2316
2317 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2318
2319         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2320         PIC addresses.
2321
2322 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2323
2324         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2325         Correct comment describing BOOLEAN_TYPE.
2326
2327 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2328
2329         * c.opt: C++ frontend supports -Wdiv-by-zero.
2330         * c-opts.c (c_common_handle_option): Remove dead case.
2331
2332 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2333
2334         * configure.ac (TLS assembler check): Do not enable TLS by
2335         default on SPARC/Solaris before version 10.
2336         * configure: Regenerate.
2337
2338 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2339
2340         * doc/invoke.texi (xl-compat): Document conversion and support
2341         routine names.
2342
2343 2006-02-07  Jeff Law  <law@redhat.com>
2344
2345         * tree-vrp.c (find_conditional_asserts): Update comments.
2346         (simplify_stmt_for_jump_threading): New.
2347         (identify_jump_threads, finalize_jump_threads): New.
2348         (vrp_finalize): Call identify_jump_threads.
2349         (execute_vrp): Call finalize_jump_threads.
2350         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2351         (vrp_element, vrp_data, vrp_element_p): Remove.
2352         (vrp_hash_elt, vrp_variables_stack): Remove.
2353         (vrp_hash, vrp_eq, record_range): Remove.
2354         (simplify_cond_and_lookup_avail_expr): Remove.
2355         (extract_range_from_cond): Remove.
2356         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2357         (simplify_stmt_for_jump_threading): New.
2358         (dom_thread_across_edge): New wrapper.
2359         (tree_ssa_dominator_optimize): No longer initialize or
2360         finalize any of the VRP datastructures.  Remove iteration
2361         step and simplify as a result of removal of iteration step.
2362         (pass_dominator): Perform a cfg cleanup after DOM.
2363         (dom_opt_finalize_block): Use the new common routines
2364         for threading jumps.  Simplify stack management slightly.
2365         No longer need to unwind VRP state.
2366         (record_equivalences_from_incoming_edge): No longer record
2367         VRP information.
2368         (eliminate_redundant_computations): No longer call
2369         simplify_cond_and_lookup_avail_expr.
2370         * tree-flow.h (potentially_threadable_block): Prototype.
2371         (thread_across_edge): Likewise.
2372         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2373         (tree-ssa-threadedge.o): Add dependencies.
2374         * tree-ssa-threadedge.c: New file.
2375         * passes.c (init_optimization_passes): Merge PHIs before
2376         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2377
2378 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2379
2380         * df-core.c (df_set_blocks): Do not dereference function pointers.
2381         (df_finish1): Likewise.
2382         (df_hybrid_search_forward): Likewise.
2383         (df_hybrid_search_backward): Likewise.
2384         (df_iterative_dataflow): Likewise.
2385         (df_analyze_problem): Likewise.
2386         (df_compact_blocks): Likewise.
2387         (df_dump): Likewise.
2388         * df-scan.c (df_rescan_blocks): Likewise.
2389         (df_record_entry_block_defs): Likewise.
2390
2391         * genconditions.c (write_conditions): Guard the definition of
2392         'insn_conditions' with the check on GCC version.
2393         (write_writer): Guard the traversal 'insn_conditions' with
2394         the check on GCC version.
2395
2396 2006-02-07  Richard Guenther  <rguenther@suse.de>
2397
2398         PR c++/26140
2399         Revert
2400         2006-01-30  Richard Guenther  <rguenther@suse.de>
2401         PR c++/23372
2402         * gimplify.c (gimplify_target_expr): Handle easy cases
2403         without creating a temporary.
2404
2405 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2406
2407         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2408         use of float in probability computations.  Use edge probabilities
2409         in place of statically computed probabilities.
2410         (min_spec_prob): New static variable.
2411         (schedule_insns): Initialize it.
2412         (GET_SRC_PROB): Removed.
2413         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2414
2415 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2416
2417         PR debug/24444
2418         * config/ia64/unwind-ia64.c: Revert last change.
2419         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2420         (INCOMING_FRAME_SP_OFFSET): Define.
2421
2422 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2423
2424         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2425
2426 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2427
2428         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2429         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2430         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2431         (ix86_return_in_memory): Handle TDmode.
2432         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2433         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2434
2435 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2436
2437         * reorg.c (dbr_schedule): Use dump_file instead of file.
2438
2439 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2440
2441         PR target/25917
2442         * config/ia64/predicates.md (extr_len_operand): New predicate.
2443         * config/ia64/ia64.md (extv): Tighten constraints.
2444         (extzv): Ditto.
2445         (*tbit_and_2): Ditto.
2446         (*tbit_and_3): Ditto.
2447         (*tbit_or_2): Ditto.
2448         (*tbit_or_3): Ditto.
2449         (*bit_zero): Ditto.
2450         (*bit_one): Ditto.
2451
2452 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2453
2454         PR target/23359
2455         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2456
2457 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2458
2459         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2460         loop_optimizer_init and loop_optimizer_finalize
2461         * tree-ssa-sink.c (execute_sink_code): Ditto.
2462         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2463         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2464         tree_ssa_loop_done): Ditto.
2465         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2466         * sched-ebb.c: Include output.h.
2467         (schedule_ebbs): Do not use dump argument.
2468         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2469         * loop.c (loop_dump_stream): Removed.
2470         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2471         argument.
2472         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2473         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2474         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2475         loop_iterations, strength_reduce, record_biv, record_giv,
2476         final_giv_value, check_final_value, check_ext_dependent_givs,
2477         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2478         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2479         dump_file instead of loop_dump_stream.
2480         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2481         argument dump_file.
2482         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2483         dump argument.
2484         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2485         * haifa-sched.c: Include output.h
2486         (schedule_insns, sched_init): Do not use dump argument.
2487         * mode-switching.c (optimize_mode_switching): Ditto.
2488         * modulo-sched.c (stats_file): Removed.
2489         (print_node_sched_params): Do not call argument dump_file.
2490         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2491         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2492         of stats_file.
2493         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2494         use dump argument.
2495         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2496         rtl_loop_init, rtl_loop_done): Ditto.
2497         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2498         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2499         Ditto.
2500         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2501         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2502         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2503         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2504         * emit-rtl.c (renumber_insns): Ditto.
2505         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2506         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2507         * regclass.c (regclass): Ditto.
2508         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2509         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2510         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2511         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2512         Ditto.
2513         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2514         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2515         to regclass.
2516         * gcse.c (gcse_file, debug_stderr): Removed.
2517         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2518         rest_of_handle_gcse): Do not use dump argument.
2519         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2520         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2521         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2522         compute_code_hoist_vbeinout, compute_code_hoist_data,
2523         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2524         compute_store_table, build_store_vectors, insert_insn_start_bb,
2525         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2526         store_motion): Use dump_file instead of gcse_file.
2527         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2528         * profile.c (profile_dump_file): Removed.
2529         (branch_prob): Use dump_file instead of profile_dump_file.
2530         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2531         dump_file.
2532         * tree-ssa-copy.c (dump_copy_of): Ditto.
2533         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2534         dump file to life_analysis.
2535         * bt-load.c (branch_target_load_optimize): Ditto.
2536         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2537         renumber_insns.
2538         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2539         regclass, dbr_schedule): Declaration changed.
2540         * sched-int.h (sched_init): Declaration changed.
2541         * tree-profile.c (tree_profile_dump_file): Removed.
2542         (tree_profile_hooks): Removed profile_dump_file hook.
2543         * rtl-profile (rtl_profile_dump_file): Removed.
2544         (rtl_profile_hooks): emoved profile_dump_file hook.
2545         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2546         changed.
2547         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2548         * tree-cfg.c (build_tree_cfg): Ditto.
2549         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2550         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2551         Declaration changed.
2552         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2553         life_analysis and schedule_insns.
2554         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2555         life_analysis.
2556         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2557         dbr_schedule.
2558         * config/mips/mips.c (mips_reorg): Ditto.
2559         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2560         schedule_ebbs.
2561
2562 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2563
2564         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2565         (s390_mangle_fundamental_type): New.
2566         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2567         Define.
2568
2569         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2570         (alpha_mangle_fundamental_type): New.
2571         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2572         Define.
2573
2574         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2575         Define.
2576         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2577         Define.
2578         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2579         (sparc_mangle_fundamental_type): New.
2580
2581 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2582
2583         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2584         (s390x-*-linux*): Likewise.
2585         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2586         * config/s390/t-linux: New file.
2587
2588 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2589
2590         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2591         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2592
2593 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2594
2595         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2596         (ANTIC_SAFE_LOADS): New macro.
2597         (find_or_generate_expression): Add prototype.
2598         (set_contains_value): Allow null set for sake of not always having
2599         to allocate ANTIC_SAFE_LOADS.
2600         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2601         Allow COMPONENT_REF too.
2602         (valid_in_set): Allow COMPONENT_REF.
2603         Check ANTIC_SAFE_LOADS too.
2604         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2605         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2606         rename.
2607         (can_PRE_operation): Add COMPONENT_REF.
2608         (create_component_ref_by_pieces): New function.
2609         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2610         (insert_aux): Move AGGREGATE_TYPE_P check here.
2611         (compute_avail): Set bb local stmt uids.
2612         (pass_pre): Use TODO_update_ssa_only_virtuals.
2613
2614 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2615
2616         * configure.ac: Unconditionally disable decimal float by default.
2617         * configure: Regenerate.
2618
2619 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2620
2621         * read-rtl.c (read_name): Terminate reading on EOF.
2622
2623 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2624
2625         * dfp.c (decimal_real_arithmetic): Change second argument type
2626         from int to enum tree_code. Do not always return true, but now
2627         return result of any call to decimal_do helper functions.
2628         * dfp.h (decimal_real_arithmetic): Update prototype.
2629
2630 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2631
2632         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2633
2634 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2635
2636         PR tree-opt/25251
2637         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2638         forced labels.
2639
2640 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2641
2642         * tree-vrp.c (cfg_loops): Removed.
2643         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2644         Use current_loops instead of cfg_loops.  Pass flags to
2645         loop_optimizer_init.
2646         * cfgloopmanip.c (fix_loop_structure): Update only available
2647         information.
2648         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2649         loop_optimizer_init.
2650         * modulo-sched.c (build_loops_structure): Removed.
2651         (sms_schedule): Use loop_optimizer_init.
2652         * loop-init.c (loop_optimizer_init): Use flags to determine
2653         which properties of loops to prepare.
2654         (rtl_loop_init): Pass flags to loop_optimizer_init.
2655         * tree-ssa-sink.c (execute_sink_code): Ditto.
2656         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2657         * tree-ssa-pre.c (init_pre): Ditto.
2658         * cfgloop.h (LOOPS_NORMAL): New.
2659         (loop_optimizer_init): Declaration changed.
2660
2661 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2662
2663         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2664         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2665         pa/t-pa.
2666         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2667         pa/t-pa.
2668         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2669         pa/x-ada.
2670         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2671         * pa/t-pa64: Delete quadlib.c rule.
2672         * pa/x-ada: Revert last change.
2673         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2674
2675 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2676
2677         PR rtl-optimization/26087
2678         * rtlanal.c (canonicalize_condition): Do not cross basic block
2679         boundaries.
2680
2681 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2682
2683         PR debug/24444
2684         * config/ia64/ia64.c: Include debug.h.
2685         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2686         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2687         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2688         (process_epilogue, process_set, process_for_unwind_directive):
2689         Output unwind info only if requested.  Add CFA info if requested.
2690         Add new arguments as needed.  Adjust callers.
2691         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2692         incorrect default.
2693         (DWARF2_FRAME_INFO): Define to zero.
2694         * config/ia64/unwind-ia64.c: Remove code that compensated for
2695         the CFA offset error fixed above.
2696         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2697         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2698         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2699         -funwind-tables and -fexceptions to enable frame info.
2700         (dwarf2out_frame_init): Define initial CFA even if
2701         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2702         DWARF2_UNWIND_INFO is nonzero, not just defined.
2703         (dwarf2out_frame_finish): Output non-EH call frame info only
2704         if DWARF2_FRAME_INFO is nonzero.
2705         (convert_cfa_to_loc_list,
2706         compute_frame_pointer_to_cfa_displacement): Define even if
2707         unwind info is not supported.
2708         (gen_subprogram_die): Use the above unconditionally.  Remove
2709         legacy alternate code.
2710         * toplev.c (compile_file): Compile in call to
2711         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2712         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2713
2714 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2715             Jakub Jelinek  <jakub@redhat.com>
2716
2717         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2718         IBM extended float format long double as "g" on powerpc*-linux.
2719
2720 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2721
2722         PR target/25926
2723         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2724         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2725
2726 2006-02-03  Jason Merrill  <jason@redhat.com>
2727
2728         PR c++/25979
2729         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2730
2731         PR middle-end/25977
2732         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2733         on the return slot if it's an NRV.
2734
2735 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2736
2737         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2738         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2739         rewrite_use): Do not handle USE_OUTER.
2740         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2741         add_iv_outer_candidates, may_replace_final_value,
2742         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2743         (find_interesting_uses_op): Functionality of
2744         find_interesting_uses_outer_or_nonlin moved here.
2745         (find_interesting_uses_outside): Use find_interesting_uses_op.
2746
2747 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2748
2749         PR target/25960
2750         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2751
2752 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2753             Ulrich Weigand  <uweigand@de.ibm.com>
2754
2755         PR target/25864
2756         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2757         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2758         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2759         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2760         and dxr fields.
2761         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2762         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2763         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2764         Define secondary reloads for TFmode moves.
2765         (constant_modes): Add TFmode.
2766         (NR_C_MODES): Set to 8.
2767         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2768         builtin define.
2769         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2770         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2771         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2772         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2773         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2774         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2775         (FPR mode macro): Add TFmode.
2776         (DSF mode macro): New.
2777         (<de>, <dee> mode attributes): Removed.
2778         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2779         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2780         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2781         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2782         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2783         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2784         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2785         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2786         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2787         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2788         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2789         "*negabs<mode>2", "sqrt<mode>2"):
2790         Changed <de> to <xde>. R constraint replaced by <Rf>.
2791         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2792         <Rf>.
2793         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2794         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2795         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2796         splitters.
2797         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2798         "extenddftf2", "extendsftf2"): New expanders.
2799         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2800         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2801         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2802         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2803         New options.
2804         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2805         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2806         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2807         __floatditf): Add a GCC_4.1.0 symbol version tag.
2808         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2809         the new options.
2810
2811 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2812
2813         PR target/25377
2814         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2815         Use targetm.binds_local_p instead of TREE_PUBLIC.
2816
2817 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2818
2819         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2820         on INTEGER_TYPEs to indicate that it denotes a character type.
2821         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2822         signed_char_type_node, unsigned_char_type_node and char_type_node.
2823         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2824         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2825         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2826
2827 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2828             Daniel Berlin  <dberlin@dberlin.org>
2829
2830         * tree-tailcall.c (arg_needs_copy_p): New function.
2831         (eliminate_tail_call): Use arg_needs_copy_p.
2832         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2833         (add_virtual_phis): New function.
2834
2835 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2836
2837         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2838         #ignore instead of #scratch for %g7 .register directive.
2839
2840 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2841
2842         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2843         object files.
2844
2845 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2846
2847         * flow.c (calculate_global_regs_live): Assert that there aren't any
2848         EDGE_FAKE edges.
2849
2850 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2851
2852         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2853         what its name says.
2854         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2855         bsi_after_labels iterator.
2856         * tree-if-conv.c (find_phi_replacement_condition,
2857         replace_phi_with_cond_modify_expr): Likewise.
2858         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2859         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2860
2861 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2862
2863         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2864
2865 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2866
2867         PR 25990
2868         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2869         array after growing it.
2870
2871 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2872
2873         PR middle-end/24901
2874         * fold-const.c (fold_checksum_tree): Change type of buf.
2875
2876 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2877
2878         * reload.c (push_secondary_reload): Initialize t_icode.
2879
2880 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2881
2882         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2883         -msoft-float -mlong-double-128 only issue a warning, but don't
2884         swich to DFmode long double.
2885
2886 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2887
2888         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2889         has a constant equivalent, iterate over equivalents for arg0,
2890         calling simplify_relational_operation and if there's a result
2891         cheaper than X, apply fold_rtx and return the result.
2892
2893 2006-02-01  Jan Hubicka  <jh@suse.cz>
2894
2895         * opts.c (no_unit_at_a_time_default): New global variable.
2896         (decode_options): Use it.
2897         * opts.h (no_unit_at_a_time_default): Declare.
2898
2899 2006-02-01  Paul Brook  <paul@codesourcery.com>
2900
2901         * function.c (assign_parm_setup_reg): Use function argument promotion
2902         rules.
2903         * expr.c (expand_expr_real_1): Use function argument promotion rules
2904         for PARM_DECLs.
2905
2906 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2907
2908         * gcc.c (process_command): Change j to 'unsigned int'.
2909
2910 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2911
2912         PR middle-end/26001
2913         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
2914         Use the corrected index for the character
2915         out of the string constant.
2916
2917 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2918
2919         * mode-switching.c (optimize_mode_switching): Fix size
2920         allocated for bb_info[n_entities].
2921
2922 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2923
2924         * gcc.c (main): Correct type that is allocated for
2925         explicit_link_files.
2926
2927 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
2928
2929         * config/s390/s390.c (init_alignment_context): Set
2930         ALIAS_SET_MEMORY_BARRIER on the MEM.
2931         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
2932
2933 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2934
2935         PR middle-end/25933
2936         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2937         dom_bbs pointer.
2938         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2939         call to tpa_init.
2940
2941 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2942
2943         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2944         * regrename.c: Ditto.
2945         * tree-ssa-loop-im.c: Ditto.
2946         * tree-dump.c: Ditto.
2947         * tree-complex.c: Ditto.
2948         * genrecog.c: Ditto.
2949         * tree-ssa-threadupdate.c: Ditto.
2950         * tracer.c: Ditto.
2951         * java/class.c: Ditto.
2952         * java/jcf-parse.c: Ditto.
2953         * java/resource.c: Ditto.
2954         * java/except.c: Ditto.
2955         * java/jvspec.c: Ditto.
2956         * java/jcf-write.c: Ditto.
2957         * java/jcf-path.c: Ditto.
2958         * java/gjavah.c: Ditto.
2959         * java/zextract.c: Ditto.
2960         * java/jcf-io.c: Ditto.
2961         * java/jcf.h: Ditto.
2962         * java/buffer.c: Ditto.
2963         * java/lang.c: Ditto.
2964         * java/parse-scan.y: Ditto.
2965         * java/lex.c: Ditto.
2966         * java/lex.h: Ditto.
2967         * cfgloopmanip.c: Ditto.
2968         * postreload-gcse.c: Ditto.
2969         * tree-ssa-loop-manip.c: Ditto.
2970         * postreload.c: Ditto.
2971         * tree-ssa-loop-ch.c: Ditto.
2972         * loop.c: Ditto.
2973         * ipa-cp.c: Ditto.
2974         * cppspec.c: Ditto.
2975         * diagnostic.c: Ditto.
2976         * final.c: Ditto.
2977         * genoutput.c: Ditto.
2978         * gcc.c: Ditto.
2979         * cfghooks.c: Ditto.
2980         * cfgloopanal.c: Ditto.
2981         * objc/objc-act.c: Ditto.
2982         * gcov.c: Ditto.
2983         * genextract.c: Ditto.
2984         * genautomata.c: Ditto.
2985         * pretty-print.c: Ditto.
2986         * genemit.c: Ditto.
2987         * cgraphunit.c: Ditto.
2988         * flow.c: Ditto.
2989         * df-scan.c: Ditto.
2990         * haifa-sched.c: Ditto.
2991         * dominance.c: Ditto.
2992         * dbxout.c: Ditto.
2993         * tree-ssa-loop-ivopts.c: Ditto.
2994         * df-core.c: Ditto.
2995         * mode-switching.c: Ditto.
2996         * modulo-sched.c: Ditto.
2997         * graph.c: Ditto.
2998         * ipa-pure-const.c: Ditto.
2999         * cse.c: Ditto.
3000         * fix-header.c: Ditto.
3001         * web.c: Ditto.
3002         * tree-stdarg.c: Ditto.
3003         * ipa-utils.c: Ditto.
3004         * loop-init.c: Ditto.
3005         * ipa-inline.c: Ditto.
3006         * cfganal.c: Ditto.
3007         * global.c: Ditto.
3008         * alloc-pool.c: Ditto.
3009         * dwarf2out.c: Ditto.
3010         * opts.c: Ditto.
3011         * genattrtab.c: Ditto.
3012         * tree-ssa-loop-ivcanon.c: Ditto.
3013         * predict.c: Ditto.
3014         * timevar.c: Ditto.
3015         * lcm.c: Ditto.
3016         * fortran/gfortranspec.c: Ditto.
3017         * regmove.c: Ditto.
3018         * local-alloc.c: Ditto.
3019         * langhooks.c: Ditto.
3020         * function.c: Ditto.
3021         * tree-vectorizer.c: Ditto.
3022         * gcse.c: Ditto.
3023         * ipa-type-escape.c: Ditto.
3024         * alias.c: Ditto.
3025         * tree-if-conv.c: Ditto.
3026         * profile.c: Ditto.
3027         * ipa.c: Ditto.
3028         * tree-data-ref.c: Ditto.
3029         * loop-unroll.c: Ditto.
3030         * treelang/treetree.c: Ditto.
3031         * calls.c: Ditto.
3032         * bt-load.c: Ditto.
3033         * ggc-common.c: Ditto.
3034         * except.c: Ditto.
3035         * coverage.c: Ditto.
3036         * cselib.c: Ditto.
3037         * tree-cfgcleanup.c: Ditto.
3038         * tree-ssa-pre.c: Ditto.
3039         * cfgcleanup.c: Ditto.
3040         * loop-invariant.c: Ditto.
3041         * loop-iv.c: Ditto.
3042         * ipa-prop.c: Ditto.
3043         * print-tree.c: Ditto.
3044         * conflict.c: Ditto.
3045         * ggc-page.c: Ditto.
3046         * sched-deps.c: Ditto.
3047         * regclass.c: Ditto.
3048         * tree-object-size.c: Ditto.
3049         * combine.c: Ditto.
3050         * bb-reorder.c: Ditto.
3051         * resource.c: Ditto.
3052         * var-tracking.c: Ditto.
3053         * cfgloop.c: Ditto.
3054         * df-problems.c: Ditto.
3055         * reg-stack.c: Ditto.
3056         * tlink.c: Ditto.
3057         * gccspec.c: Ditto.
3058         * sched-rgn.c: Ditto.
3059         * tree-ssa-structalias.c: Ditto.
3060         * tree-ssa-reassoc.c: Ditto.
3061         * config/darwin-c.c: Ditto.
3062         * config/darwin.c: Ditto.
3063         * config/arm/arm.c: Ditto.
3064         * cfgrtl.c: Ditto.
3065         * collect2.c: Ditto.
3066         * reload1.c: Ditto.
3067
3068 2006-01-31  Nicolas Pitre  <nico@cam.org>
3069
3070         * arm.md (smaxsi3): Make aware of smax_m1.
3071         (smax_m1): New.
3072
3073 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3074
3075         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3076
3077 2006-01-31  Richard Guenther  <rguenther@suse.de>
3078
3079         * doc/invoke.texi (-msselibm): Document.
3080         * target.h (expand_library_builtin): New target hook.
3081         * builtins.c (expand_builtin): Use expand_library_builtin.
3082         (default_expand_library_builtin): New function.
3083         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3084         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3085         (link_gcc_math_spec): Declare.
3086         (static_specs): Add link_gcc_math_spec.
3087         * expr.h (default_expand_library_builtin): Declare.
3088         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3089         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3090         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3091         * config/i386/i386.opt (msselibm): New target option.
3092         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3093         (ix86_init_sse_abi_builtins): New function.
3094         (ix86_expand_library_builtin): Likewise.
3095         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3096         (override_options): Handle error conditions wrt -msselibm.
3097         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3098         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3099         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3100         builtins.
3101
3102 2006-01-31  Richard Guenther  <rguenther@suse.de>
3103         Paolo Bonzini  <bonzini@gnu.org>
3104
3105         * doc/install.texi (--disable-libgcc-math): Document.
3106
3107 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3108
3109         * expr.h (expand_normal): new inline function.
3110         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3111         * dojump.c: use it.
3112         * dwarf2out.c: use it.
3113         * expr.c: use it.
3114         * calls.c: use it.
3115         * expmed.c: use it.
3116         * except.c: use it.
3117         * config/sparc/sparc.c: use it.
3118         * config/i386/i386.c: use it.
3119         * config/rs6000/rs6000.c: use it.
3120         * config/arm/arm.c: use it.
3121         * config/mips/mips.c: use it.
3122         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3123
3124 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3125
3126         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3127         argv to the appropriate type.
3128
3129 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3130
3131         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3132         unreachable code.
3133
3134 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3135
3136         PR target/26018
3137         * config/s390/s390.c (struct machine_function): New flag
3138         decomposed_literal_pool_addresses_ok_p.
3139         (s390_reorg): Set it before final stage of literal pool transforms.
3140         (s390_decompose_address): Only accept displacements of the form
3141         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3142
3143 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3144
3145         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3146         the comparison routine return.
3147
3148 2006-01-30  Michael Matz  <matz@suse.de>
3149
3150         * global.c (find_reg): Only evict for global regs.
3151         Take n_refs into account and dump more info.
3152
3153 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3154
3155         PR target/14798:
3156         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3157         (pragma_trap, pragma_nosave_low_regs): Likewise.
3158         (current_function_anonymous_args): Likewise.
3159         (sh_deferred_function_attributes): New variable.
3160         (sh_deferred_function_attributes_tail): Likewise.
3161         (print_operand): For '@', look up trap_exit attribute.
3162         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3163         handlers, save/restore fpscr, but don't do any other
3164         interrupt-specific saves.
3165         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3166         Fix check for partially saved registers to check for SHmedia.
3167         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3168         (sh_output_function_epilogue): Don't clear any of the removed
3169         variables.
3170         (sh_insert_attributes): Don't check pragma_interrupt.
3171         Insert deferred attributes.  Check that interrupt attribute is
3172         present for other attributes that require its presence.
3173         (sh_attribute_table): Add new attributes trapa_handler and
3174         nosave_low_regs.
3175         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3176         Don't check for pragma_interrupt.  Don't store argument.
3177         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3178         (sh_deferred_function_attributes): Declare.
3179         (sh_deferred_function_attributes_tail): Likewise.
3180         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3181         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3182         (*return_i): Don't use when trap_exit attribute is in effect.
3183         (*return_trapa): New insn pattern.
3184         * sh-c.c: New file.
3185         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3186         setting c_target_objs and cxx_target_objs.
3187         * t-sh: Add rule for sh-c.o.
3188
3189 2006-01-30  Richard Guenther  <rguenther@suse.de>
3190
3191         PR c++/23372
3192         * gimplify.c (gimplify_target_expr): Handle easy cases
3193         without creating a temporary.
3194
3195 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3196
3197         * vec.h (safe_grow): Remove duplicated line.
3198
3199 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3200
3201         PR 25874
3202         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3203         (expand_omp): ... here.
3204         (expand_omp_parallel): Only remove barriers for combined
3205         parallel+workshare constructs.
3206
3207 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3208
3209         Revert
3210
3211         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3212         * tree.c (build_qualified_type): Chain the new type to the original
3213         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3214         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3215         (build_pointer_type_for_mode): Only return unqualified types.
3216         (build_reference_type_for_mode): Likewise.
3217
3218 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3219
3220         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3221         * Makefile.in (CXX_COMPAT_WARN): Define.
3222         * configure: Regenerate.
3223
3224 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3225
3226         PR tree-opt/25911
3227         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3228         to an if check.
3229
3230 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3231
3232         * toplev.c: Fix thinko.
3233
3234 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3235             Marcin Dalecki  <martin@dalecki.de>
3236
3237         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3238         (push_srcloc): Use XNEW.
3239         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3240
3241 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3242
3243         * df-core.c (df_set_blocks): Deleted all variable.
3244
3245 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3246
3247         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3248         cgraph_output_pending_asms.
3249
3250 2006-01-28  Zack Weinberg  <zackw@panix.com>
3251
3252         * c.opt: Add -W(no-)overlength-strings.
3253         * doc/invoke.texi: Document it.
3254         * c-opts.c (c_common_handle_option): -pedantic implies
3255         -Woverlength-strings, if not explicitly disabled already.
3256         (c_common_post_options): -Woverlength-strings defaults to off, and
3257         is always off for C++.
3258         * c-common.c (fix_string_type): Issue warning about strings longer
3259         than is portable only if warn_overlength_strings.  Rearrange code
3260         a little for clarity.
3261         * configure.in: Check for -Wno-overlength-strings as well before
3262         enabling -pedantic in stage 1.
3263         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3264         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3265
3266         * genconditions.c (write_header, write_one_condition)
3267         (write_conditions, write_writer): Consolidate very long strings
3268         that were broken up to fit in C89 portable limit.  Don't use
3269         printf when fputs will do.
3270
3271 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3272
3273         * combine.c (simplify_comparison <AND>): Check
3274         TRULY_NOOP_TRUNCATION before start using a subreg.
3275
3276         * config/mips/mips.md (*branch_zero<mode>,
3277         *branch_zero<mode>_inverted, *branch_equality<mode>,
3278         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3279         Remove mode check from comparisons.
3280
3281 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3282
3283         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3284
3285 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3286
3287         * expmed.c (const_mult_add_overflow_p): Remove.
3288         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3289
3290         * recog.c (validate_replace_rtx_subexp): Remove.
3291         * recog.h: Remove the prototype for
3292         validate_replace_rtx_subexp.
3293
3294         * integrate.h: Remove the prototype for
3295         copy_decl_for_inlining.
3296         * rtl.h: Remove the prototype for mark_constant_function.
3297         * tree-vectorizer.h: Remove the prototype for
3298         vect_strip_conversion.
3299
3300         * modulo-sched.c (create_partial_schedule,
3301         free_partial_schedule, reset_partial_schedule): Make them
3302         static.
3303
3304         * hooks.c (hook_bool_rtx_int_false): Remove.
3305         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3306
3307 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3308
3309         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3310         and -mlong-double-128 are incompatible.
3311         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3312         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3313         (TARGET_LIBGCC2_CFLAGS): Define.
3314         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3315         (TARGET_LIBGCC2_CFLAGS): Same.
3316         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3317
3318 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3319
3320         PR c/19606.
3321         * c-typeck.c (build_binary_op): Perform implicit casts of
3322         operands before shortening them.
3323
3324         * cfgloopmanip.c (split_loop_bb): Remove.
3325         * cfgloop.h: Remove the prototype for split_loop_bb.
3326
3327         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3328         * cfgloop.h: Remove the prototype for
3329         flow_loop_outside_edge_p.
3330
3331         * emit-rtl.c (init_virtual_regs): Make it static.
3332         * function.h: Remove the prototype for init_virtual_regs.
3333
3334         * recog.c (peephole2_optimize): Make it static.
3335         * recog.h: Remove the prototype for peephole2_optimize.
3336
3337 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3338
3339         * df-scan.c (df_record_entry_block_defs): Check if
3340         INCOMING_RETURN_ADDR_RTX is defined.
3341
3342 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3343             Kenneth Zadeck <zadeck@naturalbridge.com>
3344
3345         PR rtl-optimization/24762
3346         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3347         * targhooks.c (hook_void_bitmap): New hook prototype.
3348         * targhoohs.h (hook_void_bitmap): Ditto.
3349         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3350         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3351         * target.h (live_on_entry): New function pointer.
3352         * df-scan.c (df_all_hard_regs): Removed.
3353         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3354         (df_scan_free_internal): Added df->entry_block_defs.
3355         (df_scan_alloc): Ditto.
3356         (df_scan_dump): Ditto.
3357         (df_uses_record): Plumbed flag field properly thru calls.
3358         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3359         This part fixes PR24762.
3360         (df_bb_refs_record): Added code to make the frame and arg
3361         pointers live in EH blocks.
3362         (df_refs_record): Added call to df_record_entry_block_defs.
3363         (df_record_entry_block_defs): New function.
3364         * df-core.c: Added comments to describe new artifical defs.
3365         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3366         (entry_block_defs): New field in struct df.
3367         (df_all_hard_regs): Deleted.
3368         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3369         * df-problems.c (df_ru_bb_local_compute_process_def):
3370         Added code to handle artifical defs in the entry to a function.
3371         (df_ru_bb_local_compute): Ditto.
3372         (df_rd_bb_local_compute_process_def):  Ditto.
3373         (df_rd_bb_local_compute): Ditto.
3374         (df_lr_bb_local_compute): Ditto.
3375         (df_ur_bb_local_compute): Ditto.
3376         (df_urec_bb_local_compute):  Ditto.
3377         (df_chain_create_bb):  Ditto.
3378         (df_ur_local_finalize): Removed entry.
3379         (df_urec_init): Ditto.
3380         (df_urec_local_finalize): Ditto.
3381         (df_ri_bb_compute): Added detection of last use of pseudos.
3382         * Makefile.in (df-scan.o): Updated dependencies.
3383         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3384         * config/mips/mips.c (mips_set_live_on_entry): Added.
3385         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3386         for target hook.
3387         * dce.c (marked_insn_p): Added code to handle artifical defs.
3388
3389 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3390
3391         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3392         intrinsic.
3393         (_mm_cvtsi128_si64): Likewise.
3394         (_mm_cvtsd_si64): Likewise.
3395         (_mm_cvttsd_si64): Likewise.
3396         (_mm_cvtsi64_sd): Likewise.
3397         (_mm_cvtsi64_si128): Likewise.
3398         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3399         (_mm_cvtsi64_m64): Likewise.
3400         (_m_to_int64): Likewise.
3401         (_mm_cvtm64_si64): Likewise.
3402         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3403         (_mm_cvttss_si64): Likewise.
3404         (_mm_cvtsi64_ss): Likewise.
3405         (_mm_cvtss_f32): Likewise.
3406
3407 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3408
3409         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3410         for&nbs