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