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[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         (_mm_cvtsi64_ss): Likewise.
3411         (_mm_cvtss_f32): Likewise.
3412
3413 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3414
3415         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3416         for pragma redefine_extname.
3417
3418 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3419
3420         PR target/25864
3421         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3422         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3423         -mno-minimal-toc to previous content.
3424         (bispecs): Remove goal.
3425         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3426         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3427         compatibility aliases on powerpc-*-*gnu*.
3428         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3429         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3430         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3431         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3432         (ldblspecs): New goal.
3433         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3434         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3435         _df_to_tf.
3436         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3437         L_sf_to_tf or L_df_to_tf is defined.
3438
3439 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3440             Alan Modra  <amodra@bigpond.net.au>
3441
3442         PR target/25864
3443         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3444         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3445         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3446         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3447         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3448         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3449         (rs6000_override_options): Initialize rs6000_ieeequad.
3450         Initialize TFmode format to ibm_extended_format if not
3451         TARGET_IEEEQUAD.
3452         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3453         ieeelongdouble.
3454         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3455         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3456         (function_arg_advance): IBM long double passed in two FPRs, not
3457         split.
3458         (function_arg): IBM long double passed in FPRs.
3459         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3460         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3461         Only multireg GPR aligned.
3462         (rs6000_init_libfuncs): Enable IBM long double functions if not
3463         IEEEQUAD.
3464         (rs6000_generate_compare): Use IBM long double compare if not
3465         TARGET_IEEEQUAD.
3466         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3467         (TARGET_IEEEQUAD): Define.
3468         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3469         not TARGET_IEEEQUAD.
3470         * config/rs6000/rs6000.md: Enable TFmode patterns if
3471         !TARGET_IEEEQUAD.
3472         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3473         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3474         and -mlong-double-128 are incompatible.
3475         * doc/invoke.texi (-mabi): Collect options together.  Add
3476         ibmlongdouble and ieeelongdouble.
3477
3478 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3479
3480         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3481         opaque type.
3482         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3483         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3484         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3485         * rtl.h (rtunion_def): Remove rt_ptr.
3486         (X0PTR): Delete.
3487         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3488         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3489         * config/i386/winnt.c (i386_pe_mark_dllexport)
3490         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3491
3492 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3493
3494         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3495
3496 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3497
3498         PR other/24829
3499         PR target/24831
3500         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3501         pthread_key_delete.  From John David Anglin.  gthrw-ify
3502         pthread_getunique_np only if it it's not a macro.  Delete
3503         UNUSED macro.
3504         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3505         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3506         __gthread_objc_condition_signal, __gthread_key_delete): Add
3507         "__attribute__ ((__unused__))" to unused arguments.
3508         (__gthread_recursive_mutex_init_function): Add missing return.
3509         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3510         gthr-posix95.h: Use macro-based approach for name redirection
3511         on targets missing weakref.
3512
3513 2006-01-26  Zack Weinberg  <zackw@panix.com>
3514
3515         * genconditions.c (write_header): In generated code, #ifdef out
3516         all includes and fake declarations, except includes of bconfig.h
3517         and system.h, unless GCC_VERSION >= 3001.  Do not include
3518         gensupport.h in any case.
3519         (write_conditions): Generate a definition of struct c_test.  Add
3520         a comment to the generated #endif.
3521         (write_one_condition): Escape backslashes in string too.
3522         (write_writer): Generated code must escape backslashes and quote
3523         marks (but not newlines) in the strings it writes.
3524         * Makefile.in (build/gencondmd.o): Update dependencies.
3525
3526 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3527
3528         PR target/25961
3529         * Makefile.in (insn-automata.o): Add header file dependencies.
3530         * genautomata.c: Add includes.
3531
3532 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3533
3534         PR target/25961
3535         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3536
3537 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3538
3539         * configure.ac: Expect target tools paths to be passed from the toplevel
3540         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3541         AS_SET_VAR_IF.
3542         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3543
3544 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3545
3546         PR c/25892
3547         * c.opt (Wpointer-sign): Init to -1.
3548         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3549         OPT_pedantic, to 0 otherwise.
3550         * doc/invoke.texi: Update.
3551
3552 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3553
3554         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3555         constants provided by 80387 instructions in the destination mode.
3556
3557 2006-01-26  Richard Guenther  <rguenther@suse.de>
3558             Andrew Pinski  <pinskia@physics.uc.edu>
3559
3560         PR tree-opt/21470
3561         partial PR tree-opt/17064
3562         * tree-ssa-structalias.c (intra_create_variable_infos):
3563         Create heap variables for incoming parameters if
3564         flag_argument_noalias > 1.
3565         (find_what_p_points_to): Look through default defs of
3566         parameter decls.
3567
3568 2006-01-26  Jeff Law  <law@redhat.com>
3569
3570         PR ada/25900
3571         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3572         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3573         within the VR_RANGE, use the VR_RANGE as the result, not the
3574         VR_ANTI_RANGE.
3575         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3576         bounds for the type.
3577
3578 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3579
3580         * tree-ssa-alias.c (maybe_create_global_var): Change
3581         subvar walking to an assertion that we don't have subvar'd variables.
3582
3583 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3584
3585         PR C/25861
3586         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3587         Use a new variable, inner.  PARM_DECLs are always non-weak.
3588
3589 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3590
3591         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3592         --disable-checking.
3593
3594 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3595
3596         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3597
3598 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3599
3600         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3601         (smax_insn, smin_insn, smax_0, smin_0): New.
3602
3603 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3604
3605         PR target/25947
3606         * config/cris/cris.c (cris_order_for_addsi3): New function.
3607         * config/cris/cris-protos.h: Prototype it.
3608         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3609         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3610         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3611         (split for "op.S1 [rx=rx+i],ry (swapped)")
3612         (split for "op(s|u).S1 [rx=rx+i],ry")
3613         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3614         Apply cris_order_for_addsi3 when generating addsi3 insns.
3615
3616 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3617
3618         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3619         (TREE_BLOCK): Add call to EXPR_CHECK.
3620
3621 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3622
3623         PR 25886
3624         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
3625         * tree-pretty-print.c (dump_omp_clause): Extract from ...
3626         (dump_omp_clauses): ... here.
3627         (dump_generic_node): Handle OMP_CLAUSE.
3628         * tree.c (omp_clause_num_ops): New.
3629         (omp_clause_code_name): New.
3630         (tree_code_size): Handle OMP_CLAUSE.
3631         (tree_size): Likewise.
3632         (make_node): Document handling of OMP_CLAUSE.
3633         (tree_node_structure): Handle OMP_CLAUSE.
3634         (omp_clause_check_failed): New.
3635         (omp_clause_range_check_failed): New.
3636         (omp_clause_operand_check_failed): New.
3637         (build_omp_clause): New.
3638         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
3639         * tree.h (enum omp_clause_code): Declare.
3640         (OMP_CLAUSE_SUBCODE_CHECK): Define.
3641         (OMP_CLAUSE_RANGE_CHECK): Define.
3642         (OMP_CLAUSE_ELT_CHECK): Define.
3643         (omp_clause_check_failed): Declare.
3644         (omp_clause_operand_check_failed): Declare.
3645         (omp_clause_range_check_failed): Declare.
3646         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
3647         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
3648         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
3649         (OMP_CLAUSE_LASTPRIVATE): Likewise.
3650         (OMP_CLAUSE_IF_EXPR): Likewise.
3651         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
3652         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
3653         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
3654         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
3655         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
3656         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
3657         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
3658         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
3659         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
3660         (OMP_CLAUSE_CODE): Define.
3661         (OMP_CLAUSE_SET_CODE): Define.
3662         (OMP_CLAUSE_CODE): Define.
3663         (OMP_CLAUSE_OPERAND): Define.
3664         (struct tree_omp_clause): Declare.
3665         (union tree_node): Add field 'omp_clause'.
3666         * treestruct.def (TS_OMP_CLAUSE): Define.
3667         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
3668         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
3669         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
3670         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
3671         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
3672         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
3673         (OMP_CLAUSE): Define.
3674         * print-tree.c (print_node): Handle OMP_CLAUSE.
3675         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
3676         * c-typeck.c: Likewise.
3677         * gimplify.c: Likewise.
3678         * c-omp.c: Likewise.
3679         * tree-nested.c: Likewise.
3680         * tree-inline.c: Likewise.
3681         * c-parser.c: Likewise.
3682         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
3683         clauses.
3684
3685 2006-01-25  Roger Sayle  <roger@eyesopen.com>
3686
3687         PR rtl-optimization/25703
3688         * combine.c (try_combine): Handle zero_extract and strict_low_part
3689         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
3690
3691 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
3692
3693         * global.c: Fix comment typos.
3694
3695 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
3696
3697         PR target/25758
3698         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
3699         Use output_addr_const instead of assemble_name.
3700
3701 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
3702
3703         * Makefile.in (sched-vis.o): Update dependencies.
3704         * haifa-sched.c (sched_finish): Clear current_sched_info.
3705         * cfg.c (dump_bb_info): New, split from dump_flow_info.
3706         (dump_flow_info): Call it.
3707         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
3708         a slim RTL dump.
3709         * basic-block.h (dump_bb_info): Declare.
3710         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
3711         option, and apply options only for dump files whose TDF_RTL,
3712         TDF_TREE, or TDF_IPA bits match.
3713         * rtl.h: Declare new functions exported from sched-vis.c.
3714         * sched-vis.c: Enable also if scheduling is not used.
3715         (print_value): Print the mode of registers if not inside scheduling.
3716         (print_insn): Make it work outside the scheduler.  Beautify the output
3717         a bit.
3718         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
3719
3720 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3721
3722         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
3723         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
3724         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
3725         depending on the value of CONSTANT_POOL_ADDRESS_P.
3726         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
3727         SYMBOL_REF_DECL.
3728         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
3729         rather than SYMBOL_REF_DECL.
3730         (rtx_constant_pool): Remove const_rtx_sym_htab.
3731         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
3732         (init_varasm_status): Don't initialize const_rtx_sym_htab.
3733         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
3734         Remove handling of const_rtx_sym_htab.
3735         (find_pool_constant): Delete.
3736         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
3737         rather than find_pool_constant.
3738         (get_pool_constant_for_function): Delete.
3739         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
3740         find_pool_constant.
3741         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
3742         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
3743         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
3744         (SYMBOL_REF_CONSTANT): New macro.
3745         (get_pool_constant_for_function): Delete.
3746         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
3747         rather than SYMBOL_REF_DECL.
3748         (i386_pe_mark_dllimport): Likewise.
3749         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
3750         rather than SYMBOL_REF_DECL.
3751         * config/darwin.c (machopic_indirect_data_reference): Likewise.
3752         (machopic_indirect_call_target): Likewise.
3753
3754 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
3755
3756         * flow.c (delete_noop_moves): Add missing EOL to dump message.
3757
3758 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3759
3760         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
3761
3762 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3763
3764         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
3765
3766 2006-01-24  David Daney  <ddaney@avtrex.com>
3767
3768         PR java/25816
3769         * configure.ac (enable_tls): New enable option.
3770         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
3771         * configure: Regenerate.
3772         * doc/install.texi (--enable-tls): Document new option.
3773         (--disable-tls): Ditto.
3774
3775 2006-01-24  Richard Henderson  <rth@redehat.com>
3776
3777         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
3778         * alias.c (true_dependence): Respect it.
3779         (canon_true_dependence, write_dependence_p): Likewise.
3780         * builtins.c (get_builtin_sync_mem): Set it.
3781
3782 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
3783
3784         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
3785         efficient way.
3786
3787 2006-01-24  DJ Delorie  <dj@redhat.com>
3788
3789         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
3790         for storing constants in single-bit bitfields.
3791
3792 2006-01-25  Ben Elliston  <bje@au.ibm.com>
3793
3794         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
3795
3796 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
3797
3798         PR tree-opt/25860
3799         * tree-ssa-pre.c (phi_translate): Return NULL
3800         for AGGREGATE_TYPE's.
3801
3802 2006-01-24  Zack Weinberg  <zackw@panix.com>
3803
3804         * genautomata.c (process_state_for_insn_equiv_partition):
3805         Use xcalloc for insn_arcs_array.
3806         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
3807         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
3808
3809 2006-01-24  Richard Henderson  <rth@redhat.com>
3810
3811         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
3812         update all callers.
3813
3814 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
3815
3816         PR rtl-optimization/25890
3817         PR rtl-optimization/25905
3818         * combine.c (expand_compound_operation, expand_field_assignment):
3819         Fail if the bitfield's final position is out of bounds.
3820
3821 2006-01-24  Ian Lance Taylor  <ian@airs.com>
3822
3823         PR middle-end/25930
3824         * cgraphunit.c (cgraph_output_in_order): Don't clear
3825         cgraph_asm_nodes until after asm strings have been output.
3826
3827 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
3828
3829         * fix-header.c (read_scan_file): Add new parameter imultilib when
3830         calling register_include_chains.
3831
3832 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
3833
3834         * omp-low.c: Update documentation.
3835
3836 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3837             Daniel Berlin  <dberlin@dberlin.org>
3838
3839         PR tree-opt/25315
3840         PR tree-opt/25857
3841         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
3842         return from the function.
3843
3844 2006-01-22  Zack Weinberg  <zackw@panix.com>
3845
3846         * rtl.def (match_code): Add second argument.
3847         * genpreds.c (write_extract_subexp): New function.
3848         (write_match_code): Add path argument.  Use write_extract_subexp.
3849         (write_predicate_expr): Pass path to write_match_code.
3850         (mark_mode_tests): MATCH_CODE applied to a subexpression does
3851         not perform a mode test.
3852         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
3853         a subexpression does not constrain the top-level code set.
3854         * read-rtl.c (read_rtx_variadic): New function.
3855         (read_rtx_1): Use it; allow AND and IOR to be variadic.
3856         * doc/md.texi: Document new notation.
3857         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
3858         (cmpsi_operand): ... here, using new notation.
3859
3860 2006-01-22  Zack Weinberg  <zackw@panix.com>
3861
3862         * varray.c: Remove GENERATOR_FILE #ifdefs.
3863
3864 2006-01-22  Zack Weinberg  <zackw@panix.com>
3865
3866         * genautomata.c (output_reserved_units_table): Emit nothing if
3867         description->query_units_num is zero.  Remove extra blank line.
3868         (output_cpu_unit_reservation_p): Short circuit
3869         if description->query_units_num is zero.
3870
3871 2006-01-22  Zack Weinberg  <zackw@panix.com>
3872
3873         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
3874         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
3875         nor any of the random handful of variables that used to be necessary
3876         when this program was linked with rtlanal.o.  Prune set of forward
3877         function declarations.
3878         (struct attr_desc): Remove static_p field.
3879         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
3880         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
3881         (attr_string): Do not read the character one past the length of
3882         the string.
3883         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
3884         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
3885         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
3886         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
3887         (make_automaton_attrs): New.
3888         (main): Do not call into genautomata.  Call local gen_bypass
3889         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
3890         Remove special case for insn_alts.
3891         * genautomata.c: Include gensupport.h; not genattrtab.h nor
3892         varray.h (leftover from previous change).  Prune set of forward
3893         function declarations.  Remove state_alts fields from all
3894         structures.  Remove state_alts_table from struct automaton.
3895         Make everything except main static.  Do not maintain num_dfa_decls.
3896         Do not maintain state_alts fields of various structures.
3897         (process_decls): Don't validate condexp for dm_insn_reserv decls.
3898         (add_arc): Remove state_alts argument.  All callers updated.
3899         (output_reserved_units_table): Emit #ifdef here...
3900         (output_tables): ...not here.  Don't generate state_alts tables.
3901         (expand_automata): Don't generate attributes.
3902         (write_automata): Don't generate state_alts functions.
3903         (main): New function.
3904         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
3905         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
3906         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
3907         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
3908         (BYPASS_P_FUNC_NAME, output_state_alts_table)
3909         (output_automata_list_state_alts_code, output_internal_state_alts_func)
3910         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
3911         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
3912         Delete.
3913         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
3914         * genattrtab.h: Delete file.
3915         * Makefile.in (OBJS-common): Add insn-automata.o.
3916         (insn-automata.o): New rule.
3917         (simple_generated_c): Add insn-automata.c.
3918         (build/genattrtab.o, build/genautomata.o): Update dependencies.
3919         (genprogmd): Add automata.
3920         (build/genattrtab): Needs no extra objects nor libraries.
3921         (build/genautomata): Needs build/vec.o and -lm.
3922
3923 2006-01-22  Zack Weinberg  <zackw@panix.com>
3924
3925         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
3926         (output_dfa_max_issue_rate, locked_states_num): Delete.
3927         (struct automaton): Add locked_states field.
3928         (output_dead_lock_vect): Save number of locked states in
3929         automaton->locked_states.  If it is zero, don't print anything.
3930         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
3931         (output_internal_dead_lock_func): Only test the dead_lock_vect
3932         for automata that have locked states.
3933         (output_statistics): Always print the number of locked states for
3934         each automaton.  Calculate total number of locked states here.
3935         (write_automata): Don't call output_dfa_max_issue_rate.
3936         * genattrtab.c: Define length_unit_log as a const variable.
3937         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
3938         max_insn_queue_index const.
3939         * final.c (length_unit_log): Declare const.
3940         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
3941
3942 2006-01-22  Zack Weinberg  <zackw@panix.com>
3943
3944         * genautomata.c:  Include vec.h, not varray.h.
3945         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
3946         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
3947         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
3948         VEC_* macros operating on appropriately typed vectors, or to
3949         malloced arrays when the size is known in advance.  Const-ify
3950         many char* variables and function arguments.  No functional changes.
3951         * Makefile.in (build/varray.o): Delete rule.
3952         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3953         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3954
3955 2006-01-22  Zack Weinberg  <zackw@panix.com>
3956
3957         * gensupport.c: Define get_insn_name and record_insn_name here.
3958         (read_md_rtx): Call record_insn_name as appropriate.
3959         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3960         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3961         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3962         record_insn_name.
3963         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3964         (BUILD_VARRAY): Delete.
3965         (genprognormal): Rename genprogmd.  Fold in all programs from
3966         genprognoprint; also attrtab.
3967         (build/genattrtab): Just mention genautomata.o and varray.o.
3968         Reorganize a bit, add comments to make the categories clearer.
3969
3970 2006-01-22  Zack Weinberg  <zackw@panix.com>
3971
3972         * genconditions.c (condition_table, add_condition): Delete.
3973         (write_conditions): Don't emit n_insn_conditions nor
3974         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3975         inside the table, with no #else clause ...
3976         (write_header): ...not here.
3977         (write_writer): New function.
3978         (main): Don't initialize condition_table.  Use add_c_test.
3979         Call write_writer.
3980         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3981         files on the command line.
3982         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3983         Return -1 if there is no entry in the table, don't abort.
3984         (add_c_test, traverse_c_tests): New functions.
3985         * gensupport.h (insn_elision_unavailable, insn_conditions)
3986         (n_insn_conditions): Delete declarations.
3987         (add_c_test, traverse_c_tests): Declare.
3988         * read-rtl.c: Include gensupport.h.
3989         (read_conditions): New function.
3990         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3991         (read_rtx_1): If we get EOF when we were looking for an initial
3992         open paren, return 0.  Call read_conditions when appropriate.
3993         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3994         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3995         or change them to build/gencondmd.o, as appropriate.  Remove
3996         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3997         from $(simple_generated_c).  For all files remaining in those
3998         two lists, add insn-conditions.md to the generator command line.
3999         Give insn-constants.h/s-constants their own rules.  Add rules
4000         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
4001         (build/read-rtl.o): Depend on gensupport.h.
4002         (genprognormal): Include preds.
4003         (genprogearly): Rename genprognoprint; only difference is now that
4004         they don't link with $(BUILD_PRINT).
4005         * dummy-conditions.c: Delete.
4006
4007 2006-01-22  Zack Weinberg  <zackw@panix.com>
4008
4009         * genextract.c: Don't include insn-config.h.  Do include vec.h.
4010         Declare vectors of int, char, and locstr.
4011         (locstr): New typedef.
4012         (struct extraction): Make all array fields into bare pointers.
4013         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
4014         (insn_code_number): Delete.
4015         (accum_extract): New struct.
4016         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
4017         (gen_insn): Take insn_code_number as an argument.  Use an
4018         accum_extract structure instead of loading data directly into
4019         a struct extraction, and having to know how big it might get.
4020         (walk_rtx): Operate entirely on an accum_extract structure.
4021         (print_path): Avoid unnecessary use of printf.
4022         (print_header): New function, split out of main.  Distinguish
4023         more carefully between an unrecognizable insn and an insn that
4024         has the code number of a define_expand.
4025         (main): Pass insn_code_number to gen_insn.  Call print_header
4026         only after parsing.  Avoid unnecessary use of printf.
4027         * Makefile.in (build/vec.o): New rule.
4028         (build/genextract): Depend on build/vec.o.
4029         (build/genextract.o): Don't depend on insn-config.h.
4030
4031 2006-01-22  Zack Weinberg  <zackw@panix.com>
4032
4033         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
4034         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
4035         practical.  Eliminate per-generator-program link rules.
4036
4037 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
4038
4039         PR middle-end/24437
4040         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
4041         with a call expr to ...
4042         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
4043
4044 2006-01-23  Richard Guenther  <rguenther@suse.de>
4045
4046         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
4047         before make_edge with conditional EDGE_TRUE_VALUE.
4048
4049 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
4050         Jan Hubicka  <jh@suse.cz>
4051         Richard Guenther  <rguenther@suse.de>
4052
4053         PR rtl-optimization/25654
4054         * cfgexpand.c (aggregate_contains_union_type): New function.
4055         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
4056         for structure variables that contain a union type.
4057
4058 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
4059
4060         * gengtype.c (new_structure): Return the structure.
4061         (create_option): Add an extra "next" argument.
4062         (create_field): New function.
4063         (adjust_field_rtx_def): Use create_option and create_field.
4064         Remove a now-unnecessary call to find_structure.
4065         (adjust_field_tree_def): Likewise.
4066         (note_yacc_type): Remove an unnecessary call to find_structure.
4067         * gengtype.h (new_structure): Return the structure.
4068         (create_option): Add an extra argument.
4069         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
4070         (option): Adjust calls to create_option.
4071
4072 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
4073
4074         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
4075
4076 2006-01-22  Paul Brook  <paul@codesourcery.com>
4077         Peter Barada  <peter@the-baradas.com>
4078
4079         * config/m68k/m68k.md: Add Coldfire FPU support.
4080         Define FP mode macro and associated attributes.
4081         Use it for float mode patterns.
4082         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
4083         (LIBCALL_VALUE): Use m68k_libcall_value.
4084         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
4085         (m68k_function_value): Ditto.
4086         (emit_move_sequence): Ditto.
4087         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
4088         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
4089         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
4090         (MULTILIB_EXCEPTIONS): Ditto.
4091         * config/m68k/m68k.opt: Add mcfv4e.
4092         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
4093         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
4094         (m68k_output_function_prologue): Save ColdFire FPU registers.
4095         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
4096         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
4097         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
4098         ColdFire FPU registers.
4099         (m68k_libcall_value, m68k_function_value): New functions.
4100         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
4101         (LIBCALL_VALUE): Use m68k_libcall_value.
4102         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
4103         (MASK_COLDFIRE): Add MASK_CFV4E.
4104         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
4105         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
4106         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
4107         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
4108         (GO_IF_LEGITIMATE_ADDRESS): Use it.
4109         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
4110         * doc/invoke.tex: Document -mcfv4e on m68k.
4111
4112 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
4113
4114         * doc/contribute.texi: Change CVS to SVN and update the corresponding
4115         URL.
4116
4117 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4118
4119         PR c++/16190
4120         * c-opts.c (c_common_handle_option): Don't include
4121         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
4122         * doc/invoke.texi (C++ Dialect Options): Document that
4123         -Wnon-virtual-dtor is no longer included in -Wall.
4124
4125 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
4126
4127         * gcov.c (print_version), gcov-dump.c (print_version),
4128         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
4129         dates.
4130
4131 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
4132
4133         * df-scan.c (problem_SCAN): Added NULL reset function.
4134         (df_scan_reset_blocks): Added code to call reset block function
4135         (df_bb_refs_delete) Fixed comment.
4136         (df_insn_refs_delete): Made tolerant of deleting non existent info
4137         for dataflow problems that need to be reset.
4138         * df-core.c (df_set_blocks): Ditto.
4139         * df.h (struct df_problem): Added reset_fun.
4140         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
4141         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
4142         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
4143         functions to clear out all references to def-use or use-def chains.
4144
4145 2006-01-21  Ben Elliston  <bje@au.ibm.com>
4146
4147         * varasm.c (assemble_real): Initialise data array.
4148
4149 2006-01-20  Paul Brook  <paul@codesourcery.com>
4150
4151         Merge from csl-arm-branch.
4152         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
4153         * config/arm/arm.md (movdi): Force operands[1] to a register
4154         if we have a non-register source.
4155         (*arm_movdi, *movdf_soft_insn): Require that one of the
4156         operands be a register.
4157         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
4158         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
4159
4160 2006-01-20  DJ Delorie  <dj@redhat.com>
4161
4162         * varasm.c (initialize_constant_valid_p): Allow pointers
4163         initialized from integer constants of lesser precision.
4164         (output_constant): Allow non-int-sized pointer modes to be
4165         initialized from integer constants.
4166
4167 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
4168
4169         PR libstdc++/25524
4170         * cppdefault.h (struct default_include): Add multilib flag.
4171         * cppdefault.c (cpp_include_defaults): Set it.
4172         * c.opt (-imultilib): New option.
4173         * c-opts.c (imultilib): New.
4174         (c_common_handle_option): Handle -imultilib.
4175         (c_common_post_options): Likewise.
4176         * c-incpath.c (add_standard_paths, register_include_chains):
4177         Likewise.
4178         * c-incpath.h (register_include_chains): Add extra parameter.
4179         * gcc.c (do_spec_1): Generate -imultilib option.
4180         (The Specs Language): Update %I description.
4181         (process_command): Update copyright notice.
4182         * doc/cppopts.texi (-imultilib): Document.
4183         * doc/invoke.texi (-imultilib): Include in option summary.
4184         (%I): Update specs documentation.
4185
4186 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4187
4188         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
4189
4190 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
4191
4192         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
4193         label numbers.
4194
4195 2006-01-20  Richard Guenther  <rguenther@suse.de>
4196         Steven Bosscher <stevenb.gcc@gmail.com>
4197
4198         PR rtl-optimization/24626
4199         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
4200         EDGE_TRUE_VALUE if in RTL mode.
4201
4202         Revert
4203         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
4204         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
4205
4206 2006-01-20  Dirk Mueller  <dmueller@suse.com>
4207
4208         PR c++/5520
4209         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
4210         instead of a special NOP marker.
4211         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
4212         NOP marker handling.
4213         * c-common.h (empty_body_warning): Add forward declaration.
4214         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
4215         Now uses IS_EMPTY_STMT() instead of special NOP markers.
4216
4217 2006-01-20  Paul Brook  <paul@codesourcery.com>
4218
4219         * Makefile.in (lang_checks): Keep going if mkdir fails.
4220
4221 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4222
4223         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
4224         be able to clean out basic block when not necessary.
4225         (df_scan_free): Fixed to properly delete information if df is
4226         unused before calling df_finish.
4227         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
4228         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
4229         or comment typos.
4230         (df_bb_refs_delete): New function.
4231         (df_refs_delete): Moved per block code to df_bb_refs_delete.
4232         * df-core.c (df_set_blocks): Added code to properly clean out
4233         unused blocks if they are not part of the blocks to consider.
4234         Added additional null check.
4235         (df_compact_blocks): Added basic block parameter to free_bb_fun to
4236         be able to clean out basic block when not necessary
4237         * df.h (df_free_bb_function): Ditto.
4238         (df_bb_refs_delete): New function.
4239         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
4240         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
4241         basic block parameter to be able to clean out basic block when not
4242         necessary.
4243         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
4244         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
4245         Fixed to properly delete information if df is unused before
4246         calling df_finish.
4247
4248 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4249
4250         PR rtl-optimization/25799
4251         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
4252         Corrected confluence operator to remove bits from op2 before oring
4253         with op1 rather than removing bits from op1.
4254         (df_ru_transfer_function): Corrected test on wrong bitmap which
4255         caused infinite loop.  Both of these problems were introduced in
4256         the dataflow rewrite.
4257
4258 2006-01-19  DJ Delorie  <dj@redhat.com>
4259
4260         * reload1.c (find_reload_regs): Note the details of reload
4261         failures in the dump file.
4262         (spill_failure): Likewise.
4263
4264 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4265
4266         * loop-iv.c: Include df.h and hashtab.h.
4267         (enum iv_grd_result): New enum.
4268         (DF_REF_IV, DF_REF_IV_SET): New macros.
4269         (struct biv_entry): New.
4270         (df, bivs): New global variables.
4271         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
4272         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
4273         Removed.
4274         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
4275         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
4276         analyzed_for_bivness_p, record_biv): New functions.
4277         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
4278         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
4279         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
4280         UD chains.
4281         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
4282         analysed.
4283         (iv_number_of_iterations): Use new interface to iv analysis.
4284         * loop-unroll.c: Do not include varray.h.
4285         (analyze_iv_to_split_insn): Use new interface to iv
4286         analysis.
4287         * loop-unswitch.c (may_unswitch_on): Ditto.
4288         * df.c (df_bitmaps_free): Only work for bbs for that structures are
4289         allocated.
4290         (df_bb_modify): Realloc tables to the new index.
4291         (df_find_use): New function.
4292         * df.h (df_find_use): Declare.
4293         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
4294         outmode.
4295         * cfgloop.h (struct rtx_iv): Remove analysed field.
4296         (iv_get_reaching_def): Removed.
4297         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
4298         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
4299         (loop-iv.o): Add df.h and hashtab.h dependency.
4300         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
4301
4302 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
4303
4304         PR target/25668
4305         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
4306         Double TFmode.
4307         (__floatundisf, __floatundidf): Likewise.
4308         * libgcc2.h (IS_IBM_EXTENDED): Define.
4309
4310 2006-01-19  DJ Delorie  <dj@redhat.com>
4311
4312         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
4313
4314 2006-01-19  Paul Brook  <paul@codesourcery.com>
4315
4316         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
4317         as nothrow when unwinding tables are disabled.
4318
4319 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4320
4321         PR testsuite/25171
4322         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
4323         of bit-field" when in system header.
4324
4325 2006-01-19  DJ Delorie  <dj@redhat.com>
4326
4327         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
4328         the 16 bit shift limit of the m16c.
4329
4330 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
4331
4332         PR target/22099
4333         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
4334         * config/i386/i386.c (output_set_got): Output the label if we have one
4335         for the TARGET_DEEP_BRANCH_PREDICTION case.
4336
4337 2006-01-19  Jan Hubicka  <jh@suse.cz>
4338             H.J. Lu  <hongjiu.lu@intel.com>
4339             Evandro Menezes <evandro.menezes@amd.com>
4340
4341         * invoke.texi (generic): Document
4342         (i686) Update.
4343         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
4344         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
4345         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
4346         (x86_use_incdec, x86_pad_returns): New variables
4347         (TARGET_CPU_DEFAULT_generic): New constant
4348         (TARGET_CPU_DEFAULT_NAMES): Add generic.
4349         (enum processor_type): Add generic32 and generic64.
4350         * i386.md (cpu attribute): Add generic32/generic64
4351         (movhi splitter): Behave sanely when both partial_reg_dependency and
4352         partial_reg_stall are set.
4353         (K8 splitters): Enable for generic as well.
4354         * predicates.md (incdec_operand): Use TARGET_INCDEC
4355         (aligned_operand): Avoid memory mismatch stalls.
4356         * athlon.md: Enable for generic64, new patterns for 128bit moves.
4357         * ppro.md: Enable for generic32
4358         * i386.c (generic64_cost, generic32_cost): New.
4359         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
4360         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
4361         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
4362         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
4363         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
4364         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
4365         x86_partial_reg_dependency, x86_memory_mismatch_stall,
4366         x86_accumulate_outgoing_args, x86_prologue_using_move,
4367         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
4368         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
4369         Enable for generic.
4370         (x86_use_incdec, x86_pad_returns): New.
4371         (override_options): Add generic32 and generic64, translate "generic"
4372         to generic32/generic64 and "i686" to "generic32", refuse
4373         "generic32"/"generic64" as arch target.
4374         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
4375         (ix86_reorg): Honor PAD_RETURNS.
4376
4377 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
4378
4379         * tree-pretty-print.c (dump_generic_node): Handle
4380         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
4381         * cgraph.c (cgraph_expand_queue): Rename from
4382         cgraph_analyze_queue.  Update all users.
4383         * cgraphunit.c (cgraph_assemble_pending_functions): Process
4384         cgraph_expand_queue.
4385         (cgraph_expand_all_functions): Likewise.
4386         (cgraph_finalize_pending_functions): Remove.  Update callers.
4387
4388         * tree.h (OMP_DIRECTIVE_P): Define.
4389         (OMP_PARALLEL_FN): Define.
4390         (OMP_PARALLEL_DATA_ARG): Define.
4391         (OMP_SECTIONS_SECTIONS): Define.
4392         * tree-pass.h (pass_expand_omp): Declare.
4393         * omp-low.c (struct omp_region): Declare.
4394         (struct omp_context): Remove fields 'parallel_type',
4395         'parallel_start_ix' and 'parallel_start_additional_args'.
4396         Update all users.
4397         (struct omp_for_data): Rename from struct expand_omp_for_data.
4398         (omp_regions): New static variable.
4399         (root_omp_region): New static variable.
4400         (find_omp_clause): Make static.
4401         (is_in_combined_parallel_ctx): Remove.
4402         (is_combined_parallel): New.
4403         (extract_omp_for_data): Move earlier in the file.
4404         (workshare_safe_to_combine_p): New.
4405         (get_ws_args_for): New.
4406         (determine_parallel_type): Move earlier in the file.
4407         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
4408         child function.
4409         (omp_copy_decl): Likewise.
4410         (create_omp_child_function): Likewise.
4411         (lookup_omp_region): New.
4412         (dump_omp_region): New.
4413         (debug_omp_region): New.
4414         (debug_all_omp_regions): New.
4415         (new_omp_region): New.
4416         (scan_omp_parallel): If parallel_nesting_level > 1, the
4417         directive is nested within another parallel directive.
4418         Set OMP_PARALLEL_FN.
4419         (scan_omp_for): Do not try to handle combined parallel+for
4420         cases.
4421         Remove FIXME comment.
4422         (scan_omp_nested): Remove.
4423         (scan_omp_1): Do not call scan_omp_nested when
4424         parallel_nesting_level is > 1.
4425         Do not change the DECL_CONTEXT of local variables found.
4426         (lookup_decl_in_outer_ctx): New.
4427         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
4428         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
4429         (lower_reduction_clauses): Rename from expand_reduction_clauses.
4430         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
4431         If CTX is nested, lookup VAR in the outer context when
4432         building copy assignment.
4433         (lower_send_clauses): Rename from expand_send_clauses.
4434         If CTX is nested, lookup VAR in the outer context when
4435         building copy assignments.
4436         (lower_send_shared_vars): Rename from expand_send_shared_vars.
4437         If CTX is nested, lookup VAR in the outer context when
4438         building copy assignments.
4439         (expand_parallel_call): Rename from build_parallel_call.
4440         Handle combined parallel+workshare cases.
4441         Re-implement to emit code into the CFG.
4442         (list2chain): New.
4443         (expand_omp_parallel): Re-implement to emit code into the CFG.
4444         Call move_sese_region_to_fn to outline the sub-graph
4445         containing the parallel region.
4446         (expand_omp_for_1): Remove.
4447         (expand_omp_for_generic): Re-implement to emit code into the
4448         CFG.
4449         (expand_omp_for_static_nochunk): Likewise.
4450         (expand_omp_for_static_chunk): Likewise.
4451         (expand_omp_for): Likewise.
4452         (expand_omp_sections): Likewise.
4453         (remove_exit_barriers): New.
4454         (expand_omp_synch): New.
4455         (expand_omp): New.
4456         (build_omp_regions_1): New.
4457         (build_omp_regions): New.
4458         (execute_expand_omp): New.
4459         (gate_expand_omp): New.
4460         (pass_expand_omp): Define.
4461         (lower_omp_sections): Rename from expand_omp_sections.
4462         Set OMP_SECTIONS_SECTIONS.
4463         (lower_omp_single_simple): Rename from expand_omp_single_simple.
4464         (lower_omp_single_copy): Rename from expand_omp_single_copy.
4465         (lower_omp_single): Rename from expand_omp_simple.
4466         (lower_omp_master): Rename from expand_omp_master.
4467         (lower_omp_ordered): Rename from expand_omp_ordered.
4468         (lower_omp_critical): Rename from expand_omp_critical.
4469         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
4470         (lower_omp_for): Re-implement.
4471         (lower_omp_parallel): Re-implement.
4472         (lower_regimplify): Rename from expand_regimplify.
4473         (lower_omp_1): Rename from expand_omp_1.
4474         If there are syntax errors in the program, replace every
4475         OpenMP directive with NOP.
4476         Call lower_omp_* instead of expand_omp_*.
4477         (lower_omp): Rename from expand_omp.
4478
4479         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
4480         * tree-gimple.h (enum omp_parallel_type): Remove.
4481         (gimple_boolify): Declare extern.
4482         (find_omp_clause, determine_parallel_type): Remove.
4483
4484         * gimple-low.c (lower_omp_directive): New.
4485         (lower_stmt): Call it.
4486         (record_vars_into): Move from ...
4487         (record_vars): ... here.
4488         Call record_vars_into with current_function_decl.
4489
4490         * gimplify.c (struct gimplify_ctx): Remove fields
4491         combined_pre_p and combined_ctxp.  Update users.
4492         (get_formal_tmp_var): Add documentation.
4493         (gimple_boolify): Make extern.
4494         (gimplify_expr_in_ctx): Remove.  Update callers.
4495         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
4496         will always be a BIND_EXPR.
4497         (gimplify_expr): Handle OMP_RETURN_EXPR.
4498         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
4499         (OMP_PARALLEL): Add 3 operands.
4500         (OMP_SECTIONS): Add 1 operand.
4501         (OMP_RETURN_EXPR): Define.
4502
4503         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
4504         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
4505         * tree-iterator.c (alloc_stmt_list): Assert that we are not
4506         creating a circular free list.
4507         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
4508
4509         * tree-flow.h (move_sese_region_to_fn): Declare.
4510         (record_vars_into): Declare.
4511         * tree-cfg.c (make_omp_sections_edges): New.
4512         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
4513         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
4514         OMP_SECTIONS and OMP_SECTION.
4515         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
4516         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
4517         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
4518         (gather_blocks_in_sese_region): New.
4519         (struct move_stmt_d): Declare.
4520         (move_stmt_r): New.
4521         (move_block_to_fn): New.
4522         (move_sese_region_to_fn): New.
4523
4524         * passes.c (init_optimization_passes): Schedule
4525         pass_expand_omp after pass_init_datastructures.
4526
4527         * tree-ssa-operands.c (get_expr_operands): Handle
4528         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
4529         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
4530
4531 2006-01-19  Jeff Law  <law@redhat.com>
4532
4533         * tree-vrp.c (extract_range_from_assert): Refine the result range
4534         if the variable referenced by the ASSERT_EXPR has a range and
4535         either the tentative result range or the previous range is a
4536         VR_ANTI_RANGE.
4537
4538 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4539
4540         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
4541
4542 2006-01-19  Jan Hubicka  <jh@suse.cz>
4543
4544         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
4545
4546 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
4547
4548         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
4549         (expand_compound_operation, expand_field_assignment): Fail if the
4550         bit lengths of an extract operation are out of range.
4551         (make_extraction): Compute wanted_inner_mode based on the position
4552         and length of the extraction.  Make it extraction_mode for non-constant
4553         positions, and do not modify offset in that case.  When generating a
4554         new MEM, use a mode that can hold the extraction while keeping correct
4555         alignment.  Remove code that supported MEMs wrapped by USEs.
4556         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
4557
4558 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
4559
4560         * config/s390/s390.md ("Y", "y"): New mode attribute.
4561         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
4562         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
4563         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
4564         "*addsi3_imm_cc", "*addsi3_carry1_cc",
4565         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
4566         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
4567         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
4568         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
4569         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
4570         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
4571         "addsi3", "subsi3"): Insn patterns removed.
4572         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
4573         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
4574         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
4575         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
4576         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
4577         "*sub<mode>3_cconly2"): New insn patterns.
4578         ("addsi3", "subsi3"): New expanders.
4579
4580 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
4581
4582         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
4583         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
4584         existing STMT_VINFO_VECTYPE if available.
4585         (vect_mark_relevant): Add special handling for stmts that are
4586         marked as STMT_VINFO_IN_PATTERN_P.
4587         (vect_analyze_loop): Call vect_pattern_recog.
4588         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
4589         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
4590         stmt_info.
4591         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
4592         (vect_recog_func_ptr): New function-pointer type.
4593         * tree-vect-patterns.c: New file.
4594         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
4595         (vect_recog_dot_prod_pattern, vect_pattern_recog):
4596         (vect_pattern_recog_1): New functions.
4597         (vect_pattern_recog_funcs): New array of function pointers.
4598
4599         * tree-vectorizer.h (ternary_op): New enum value.
4600         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
4601         declaration. Revised documentation. Removed redundant dump prints.
4602         Removed redundant argument. Added support for reduction patterns.
4603         (vectorizable_reduction): Added support for reduction patterns.
4604         (vect_transform_stmt): Added support for patterns.
4605
4606         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
4607         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
4608         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
4609         (expand_widen_pattern_expr): New function.
4610         (init_optabs): Initialize new optabs udot_prod_optab,
4611         sdot_prod_optab.
4612         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
4613         (sdot_prod_optab, udot_prod_optab): Define new optabs.
4614         (expand_widen_pattern_expr): New function declaration.
4615         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
4616         tree-codes.
4617         * tree-inline.c (estimate_num_insns_1): Added cases for new
4618         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4619         * tree-pretty-print.c (dump_generic_node): Likewise.
4620         (op_prio): Likewise.
4621         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4622         * tree-ssa-operands.c (get_expr_operands): Added case for
4623         DOT_PROD_EXPR.
4624         * tree-vect-patterns.c (widened_name_p): New function.
4625         (vect_recog_dot_prod_pattern): Added function implementation.
4626         * tree-vect-transform.c (get_initial_def_for_reduction): Added
4627         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
4628         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
4629         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
4630
4631         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
4632         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
4633         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
4634         (init_optabs): Initialize new optabs widen_ssum_optab,
4635         widen_usum_optab.
4636         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
4637         (widen_ssum_optab, widen_usum_optab): Define new optabs.
4638         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
4639         use instead of type of def.
4640         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
4641         function implementation.
4642         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
4643         widen_ssumv8hi): New.
4644
4645         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
4646         patterns.
4647
4648 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4649
4650         PR c/25805
4651         * c-decl.c (add_flexible_array_elts_to_size): New function.
4652         (finish_decl): Use it.
4653
4654 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
4655
4656         * diagnostic.h: Include options.h.
4657         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
4658         dependancies for diagnostic.h.
4659         * Makefile.in (DIAGNOSTIC_H): Add options.h.
4660
4661 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
4662
4663         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
4664         (ssa_ro_call_cache_valid): Ditto.
4665         * tree-ssa-alias.c (sort_tags_by_id): New function.
4666         (init_transitive_clobber_worklist): Ditto.
4667         (add_to_worklist): Ditto.
4668         (mark_aliases_call_clobbered): Ditto.
4669         (compute_tag_properties): Ditto.
4670         (set_initial_properties): Ditto.
4671         (compute_call_clobbered): Ditto.
4672         (compute_may_aliases):  Call compute_call_clobbered and grouping.
4673         (compute_flow_sensitive_aliasing): Remove clobbering related code.
4674         (compute_flow_insensitive_aliasing): Grouping now happens in our
4675         caller.
4676         (setup_pointers_and_addressables): Remove clobbering related code.
4677         (add_may_alias): Ditto.
4678         (replace_may_alias): Ditto.
4679         (get_nmt_for): Ditto.
4680         (create_global_var):
4681         (is_escape_site): Return an escape_type enumeration.
4682         * tree-flow-inline.h (is_call_clobbered):  Global var does not
4683         imply call clobbered.
4684         (mark_call_clobbered): Take a reason for marking this. Remove
4685         marking of globalness, and cache invalidation.
4686         (clear_call_clobbered): Remove cache invalidation code.
4687         * tree-dfa.c (dump_variable): If details is on, dump the reason
4688         for escaping.
4689         * tree-outof-ssa.c (create_temp): Copy escape mask from original
4690         variable.
4691         * tree-flow.h (struct ptr_info_def): Add escape mask member.
4692         (struct var_ann_d): Ditto.
4693         (enum escape_type): New.
4694         (mark_call_clobbered): Adjust prototype.
4695         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
4696         are never call clobbered.
4697         Record reasons for escaping.
4698         * tree-ssa-structalias.h (is_escape_site): Update prototype.
4699         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
4700         (ssa_ro_call_cache_valid): Ditto.
4701         (clobbered_v_may_defs): Ditto.
4702         (clobbered_vuses): Ditto.
4703         (ro_call_vuses): Ditto.
4704         (clobber_stats): New.
4705         (init_ssa_operands): Zero out clobber stats.
4706         (fini_ssa_operands): Print out clobber stats.
4707         (get_call_expr_operands): Pass callee fndecl to
4708         add_call_read_ops).
4709         (add_call_clobber_ops): Remove use of cache.
4710         Add use of PURE_CONST information.
4711         (add_call_read_ops): Remove use of cache.
4712         Add use of static not_read information.
4713
4714 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
4715
4716         Introduce TLS descriptors for i386 and x86_64.
4717         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
4718         (TARGET_ANY_GNU_TLS): New macro.
4719         (enum tls_dialect): Added TLS_DIALECT_GNU2.
4720         (struct machine_function): Add tls_descriptor_call_expanded_p.
4721         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
4722         (ix86_current_function_calls_tls_descriptor): Likewise.
4723         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
4724         (override_options): Introduce gnu2 tls dialect.
4725         (ix86_frame_pointer_required): Functions containing TLSCALLs are
4726         not leaves.
4727         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
4728         Likewise.
4729         (legitimize_tls_address): Adjust logic for GNU2 TLS.
4730         (ix86_init_machine_status): Initialize new field.
4731         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
4732         (ix86_tls_module_base): New.
4733         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
4734         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
4735         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
4736         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
4737         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
4738         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
4739         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
4740         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
4741         * config/i386/predicates.md (tls_modbase_operand): New.
4742         (tp_or_register_operand): New.
4743
4744 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
4745
4746         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
4747         (look_for_address_of): Ditto.
4748         (ipa_init): Walk the function decls.
4749         (static_execute): Don't set readonly on FUNCTION_DECL's.
4750
4751 2006-01-18  Roger Sayle  <roger@eyesopen.com>
4752
4753         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
4754         for shifts where the source and destination registers are different.
4755
4756 2006-01-18  Paul Brook  <paul@codesourcery.com>
4757
4758         Merge from csl-arm-branch.
4759         2005-03-14  Julian Brown  <julian@codesourcery.com>
4760         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
4761         (aeabi_llsl): Likewise.
4762         (ashrdi3): Likewise.
4763         (aeabi_lasr): Likewise.
4764         (lshrdi3): Likewise.
4765         (aeabi_llsr): Likewise.
4766         2005-03-10  Julian Brown  <julian@codesourcery.com>
4767         * config.gcc: Disable shared libgcc for SymbianOS.
4768         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
4769
4770 2006-01-18  DJ Delorie  <dj@redhat.com>
4771
4772         * c-pragma.c (handle_pragma_diagnostic): New.
4773         (init_pragma): Register it.
4774         * doc/extend.texi: Document it.
4775
4776         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
4777         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
4778         (diagnostic_context): Add classify_diagnostic[].
4779         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
4780         as errors if they're overridden to DK_WARNING.
4781         (diagnostic_initialize): Initialize classify_diagnostic[].
4782         (diagnostic_set_kind_override): New.
4783         (diagnostic_report_diagnostic): Check for kind changes.
4784         * opts.c (common_handle_option): Take lang_mask.  Update callers.
4785         Handle OPT_Werror_.
4786         * common.opt (Werror=): New.
4787         * doc/invoke.texi: Document -Werror=*
4788
4789 2006-01-18  Jeff Law  <law@redhat.com>
4790
4791         * tree-vrp.c (test_for_singularity): Correct test for new
4792         min limit.  Use operand_equal_p rather than pointer equality
4793         for testing if new min/max values are equal.
4794
4795         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
4796         using range information until after propagation and folding.
4797
4798 2006-01-18  Richard Henderson  <rth@redhat.com>
4799             Aldy Hernandez  <aldyh@redhat.com>
4800             Jakub Jelinek  <jakub@redhat.com>
4801             Diego Novillo  <dnovillo@redhat.com>
4802
4803         * omp-low.c: New file.
4804         * c-omp.c: New file.
4805
4806 2006-01-18  Richard Henderson  <rth@redhat.com>
4807             Jakub Jelinek  <jakub@redhat.com>
4808             Diego Novillo  <dnovillo@redhat.com>
4809
4810         * doc/invoke.texi: Document -fopenmp.
4811         * tree-dump.h (debug_function): Declare.
4812         * hooks.c (hook_bool_tree_bool_false): New function.
4813         (hook_tree_tree_null): Remove.
4814         (hook_tree_tree_tree_null): New.
4815         * hooks.h: Update to match.
4816         * tree-pretty-print.c (debug_tree_chain): New.
4817         (print_generic_expr): Handle TDF_CHAIN.
4818         (dump_generic_node): Handle BLOCK.
4819         Do not abort with incomplete SWITCH_EXPRs.
4820         Do not dump body of an OpenMP directive if TDF_SLIM is given.
4821         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
4822         print space after directive name.
4823         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
4824         Handle OMP_MASTER and OMP_ORDERED.
4825         Handle printing of OMP_BODY just in one place, goto
4826         dump_omp_body in the rest of OMP_* nodes that have
4827         OMP_BODY.
4828         Don't handle clause nodes here.  Update omp statements to
4829         use dump_omp_clauses.
4830         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
4831         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
4832         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
4833         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
4834         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
4835         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
4836         Adjust output for GOMP_PARALLEL.
4837         (dump_omp_clauses): New.
4838         (print_declaration): Dump DECL_VALUE_EXPR.
4839         (op_symbol_1): Split out of op_symbol.
4840         (dumping_stmts): Remove.  Update all users.
4841         * cgraph.c (cgraph_analyze_queue): New.
4842         (cgraph_add_new_function): New.
4843         * cgraph.h (cgraph_analyze_queue): Declare.
4844         (cgraph_add_new_function): Declare.
4845         (cgraph_lower_function): Remove.
4846         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
4847         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
4848         and TYPE_P nodes in its default clause.
4849         (empty_body_p): New.
4850         (tree_range_check_failed): New.
4851         (build5_stat): New.
4852         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
4853         OMP_CLAUSE_REDUCTION_MERGE,
4854         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
4855         OMP_CLAUSE_PRIVATE_DEBUG,
4856         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
4857         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
4858         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
4859         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
4860         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
4861         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
4862         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
4863         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
4864         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
4865         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
4866         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
4867         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
4868         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
4869         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
4870         (TREE_RANGE_CHECK): New.
4871         (empty_body_p): Declare.
4872         (enum omp_clause_default_kind): New.
4873         (build_string_literal): Declare.
4874         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
4875         (build5_stat, build5): Declare.
4876         * tree-pass.h (TDF_CHAIN): Define.
4877         * tree-pass.h (PROP_gimple_lomp): Define.
4878         (pass_lower_omp): Declare.
4879         * diagnostic.h (debug_tree_chain): Declare.
4880         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
4881         mode_for_size.
4882         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
4883         * builtins.c (build_string_literal): Make extern.
4884         * gcc.c (include_spec_function): New.
4885         (static_spec_functions): Add it.
4886         (main): Move load of libgomp.spec ...
4887         (LINK_COMMAND_SPEC): ... here.
4888         (link_gomp_spec): New.
4889         (static_specs): Include it.
4890         (LINK_COMMAND_SPEC): Add link_gomp.
4891         (GOMP_SELF_SPECS): New.
4892         (driver_self_specs): Include it.
4893         (switch_matches): Don't mark inline.
4894         (main): Load libgomp.spec.
4895         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
4896         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
4897         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
4898         * tree-gimple.h (enum omp_parallel): Declare.
4899         (determine_parallel_type): Declare.
4900         (omp_firstprivatize_variable): Declare.
4901         (omp_reduction_init): Declare.
4902         (diagnose_omp_structured_block_errors): Declare.
4903         (struct walk_stmt_info): Add want_return_expr.
4904         (struct walk_stmt_info): Add want_bind_expr, want_locations.
4905         (find_omp_clause): Declare.
4906         (insert_field_into_struct): Declare.
4907         (struct walk_stmt_info): Move from tree-nested.c
4908         (walk_stmts): Declare.
4909         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
4910         to 200505.
4911         * cgraphunit.c (cgraph_lower_function): Make static.
4912         (cgraph_finalize_pending_functions): New.
4913         (cgraph_finalize_function): Call it.
4914         (cgraph_finalize_compilation_unit): Likewise.
4915         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
4916         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
4917         (BT_FN_UINT_UINT): New.
4918         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
4919         DEF_FUNCTION_TYPE_VAR_4): Document.
4920         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
4921         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
4922         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
4923         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
4924         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
4925         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
4926         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
4927         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
4928         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
4929         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
4930         into separate files.
4931         (DEF_GOMP_BUILTIN): New.
4932         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
4933         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
4934         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
4935         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
4936         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
4937         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
4938         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
4939         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
4940         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
4941         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
4942         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
4943         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
4944         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
4945         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
4946         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
4947         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
4948         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
4949         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
4950         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
4951         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
4952         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
4953         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
4954         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
4955         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
4956         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
4957         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
4958         * sync-builtins.def: New file, moved from builtins.def.
4959         * omp-builtins.def: New file, moved from builtins.def.
4960         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
4961         * gimple-low.c (lower_function_body): Clear data.
4962         (lower_stmt): Do not handle COMPOUND_EXPR.
4963         Remove call to print_node_brief.
4964         * c-tree.h (c_finish_omp_clauses): New prototype.
4965         (C_DECL_THREADPRIVATE_P): Define.
4966         (lookup_name_no_remap, c_omp_remap_private): Remove
4967         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
4968         (check_for_loop_decls): Update decl.
4969         (lookup_name_no_remap, c_omp_remap_private): Declare.
4970         (build_indirect_ref, build_modify_expr, pushdecl,
4971         pushdecl_top_level): Move to c-common.h.
4972         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
4973         before the switch, but just in the 2 places that need it.
4974         * c-decl.c (diagnose_mismatched_decls): Do not check for
4975         mismatched thread-local attributes when OLDDECL is marked
4976         threadprivate and NEWDECL has no thread-local attributes.
4977         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
4978         (c_gimple_diagnostics_recursively): Rename from
4979         c_warn_unused_result_recursively.  Invoke
4980         diagnose_omp_structured_block_errors.
4981         (check_for_loop_decls): Return a singular decl found.
4982         * langhooks.c (lhd_omp_predetermined_sharing): Return
4983         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
4984         (lhd_omp_firstprivatize_type_sizes): New.
4985         (lhd_omp_assignment): New.
4986         (lhd_omp_predetermined_sharing): New.
4987         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
4988         (struct lang_hooks_for_types): Add
4989         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
4990         omp_predetermined_sharing, omp_disregard_value_expr,
4991         omp_private_debug_clause, omp_clause_default_ctor,
4992         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
4993         (c_finish_omp_clauses): New.
4994         (c_finish_bc_stmt): Diagnose break within omp for.
4995         (c_begin_omp_parallel, c_finish_omp_parallel): New.
4996         (build_unary_op): Return error_mark after reporting
4997         a readonly_error.
4998         (build_modify_expr): Likewise.
4999         * gimplify.c: Include optabs.h and pointer-set.h.
5000         (enum gimplify_omp_var_data): Declare.
5001         (struct gimplify_omp_ctx): Declare.
5002         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
5003         and combined_ctxp.
5004         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
5005         (push_gimplify_context, pop_gimplify_context): Allow nesting.
5006         (splay_tree_compare_decl_uid): New.
5007         (new_omp_context): New.
5008         (delete_omp_context): New.
5009         (gimple_add_tmp_var): Call omp_add_variable.
5010         (gimplify_bind_expr): Likewise.
5011         (gimplify_var_or_parm_decl): If omp_notice_variable returned
5012         true, disregard DECL_VALUE_EXPR on the decl if any.
5013         (gimplify_expr_in_ctx): New.
5014         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
5015         omp_add_variable, omp_notice_variable, omp_is_private
5016         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
5017         gimplify_adjust_omp_clauses, gimplify_omp_parallel
5018         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
5019         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
5020         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
5021         gimplify_omp_atomic): New.
5022         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
5023         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
5024         OMP_CRITICAL and OMP_ATOMIC.
5025         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
5026         * c-pragma.h (enum pragma_kind): Add
5027         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
5028         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
5029         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
5030         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
5031         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
5032         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
5033         PRAGMA_OMP_THREADPRIVATE.
5034         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
5035         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
5036         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
5037         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
5038         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
5039         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
5040         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
5041         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
5042         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
5043         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
5044         * tree-ssa-dce.c (find_control_dependence): Do not assume that
5045         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
5046         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
5047         OpenMP directives.
5048         (struct nesting_info): Add field_map,
5049         suppress_expansion, debug_var_chain.
5050         (create_nesting_tree): Initialize them.
5051         (lookup_field_for_decl): Use field_map.
5052         (get_nonlocal_debug_decl, get_local_debug_decl): New.
5053         (convert_local_omp_clauses): New.
5054         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
5055         (walk_body): Split out of walk_function.
5056         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
5057         (convert_nonlocal_reference): Handle omp statements.
5058         (convert_local_reference): Likewise.
5059         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
5060         (unnest_nesting_tree): New.
5061         (lower_nested_functions): Call it.
5062         (insert_field_into_struct): Make extern.
5063         (struct walk_stmt_info): Move to tree-gimple.h.
5064         (walk_stmts): Make extern.
5065         * omp-builtins.def: New file.
5066         * tree-iterator.c (expr_only): Clarify comment.
5067         * c-common.h (pushdecl_top_level, pushdecl,
5068         build_modify_expr, build_indirect_ref,
5069         c_finish_omp_master, c_finish_omp_critical,
5070         c_finish_omp_ordered, c_finish_omp_barrier,
5071         c_finish_omp_atomic, c_finish_omp_flush,
5072         c_finish_omp_for, c_split_parallel_clauses,
5073         omp_clause_default_kind, c_omp_sharing_predetermined,
5074         c_omp_remap_decl): Declare.
5075         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
5076         (OBJS-common): Add omp-low.o.
5077         (c-omp.o, omp-low.o): Add.
5078         (gimplify.o): Add dependency on $(OPTABS_H).
5079         (GTFILES): Add omp-low.c.
5080         (gt-stringpool.h): Add.
5081         * tree-cfg.c (set_bb_for_stmt): Do not update the
5082         block-to-labels map if we are currently expanding to RTL.
5083         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
5084         checks.
5085         Handle IDENTIFIER_NODE.
5086         (tree_verify_flow_info): Do not ICE when emitting error
5087         messages about invalid labels.
5088         (dump_function_to_file): Reset CFUN before emitting the body
5089         of the function.
5090         (debug_function): New.
5091         * passes.c (init_optimization_passes): Schedule
5092         pass_lower_omp.
5093         * langhooks-def.h (lhd_omp_predetermined_sharing,
5094         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
5095         Declare.
5096         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
5097         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
5098         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
5099         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
5100         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
5101         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
5102         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
5103         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
5104         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
5105         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
5106         (LANG_HOOK_DECLS): Use them.
5107
5108 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
5109             Richard Henderson  <rth@redhat.com>
5110             Jakub Jelinek  <jakub@redhat.com>
5111             Diego Novillo  <dnovillo@redhat.com>
5112
5113         * c-parser.c (pragma_omp_clause): Define.
5114         (c_parser_declaration_or_fndef): Document OpenMP syntax.
5115         (c_parser_compound_statement): Likewise.
5116         (c_parser_statement): Likewise.
5117         (c_parser_pragma): Handle omp pragmas.
5118         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
5119         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
5120         (c_parser_omp_clause_name, check_no_duplicate_clause,
5121         c_parser_omp_variable_list,
5122         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
5123         c_parser_omp_clause_copyprivate,
5124         c_parser_omp_clause_default,
5125         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
5126         c_parser_omp_clause_lastprivate,
5127         c_parser_omp_clause_nowait,
5128         c_parser_omp_clause_num_threads,
5129         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
5130         c_parser_omp_clause_reduction,
5131         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
5132         c_parser_omp_all_clauses, c_parser_omp_structured_block,
5133         c_parser_omp_atomic, c_parser_omp_barrier,
5134         c_parser_omp_critical, c_parser_omp_flush,
5135         c_parser_omp_for_loop, c_parser_omp_for,
5136         c_parser_omp_master, c_parser_omp_ordered,
5137         c_parser_omp_sections_scope, c_parser_omp_sections,
5138         c_parser_omp_parallel, c_parser_omp_single,
5139         c_parser_omp_construct, c_parser_omp_threadprivate): New.
5140         * c-pragma.c (init_pragma): Do omp pragma registration here.
5141         * c.opt (fopenmp): New flag.
5142
5143 2006-01-18  Eric Christopher  <echristo@apple.com>
5144
5145         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
5146         * config/darwin.h (GOMP_SELF_SPECS): Define.
5147
5148 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5149
5150         * rtl.h: Remove the prototype for reg_alloc.
5151
5152 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5153
5154         PR target/25731
5155         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
5156         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
5157         sjlj and dwarf2 exception handling.
5158         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
5159         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
5160         * pa/pa.c (function_value): Treat complex and vector types as
5161         aggregates.
5162         (function_arg): Likewise.  Only pass scalar floats in the floating
5163         point argument registers.
5164         * pa/t-slibgcc-dwarf-ver: New file.
5165         * pa/t-slibgcc-sjlj-ver: New file.
5166         * pa/t-slibgcc-elf-ver: Delete file.
5167
5168 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
5169
5170         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
5171         unlikely_test_section_p test.
5172
5173 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5174
5175         * mode-switching.c (optimize_mode_switching): Make it static.
5176         * basic-block.h: Remove the prototype for
5177         optimize_mode_switching.
5178
5179         * modulo-sched.c (sms_schedule): Make it static.
5180         * rtl.h: Remove the prototype for sms_schedule.
5181
5182         * postreload-gcse.c (gcse_after_reload_main): Make it static.
5183         * rtl.h: Remove the prototype for gcse_after_reload_main.
5184
5185         * reg-stack.c (reg_to_stack): Make it static.
5186         * rtl.h: Remove the prototype for reg_to_stack.
5187
5188         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
5189         Make them static.
5190         * rtl.h: Remove the prototypes for regrename_optimize and
5191         copyprop_hardreg_forward.
5192
5193 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
5194
5195         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
5196         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
5197         Test against the appropriate null constant for the mode.
5198         If 'fixup_overlap' is true, swap the operands if they overlap.
5199         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
5200         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
5201         alpha_split_tmode_pair and adjust for above change.
5202         * config/alpha/alpha.md (movtf_internal): Adjust call to
5203         alpha_split_tfmode_pair and rely on it to swap the operands.
5204         (movti_internal): New insn and post-reload splitter.
5205         (movti): New expander.
5206
5207 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
5208
5209         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
5210         operands.
5211
5212 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5213
5214         * rtlanal.c (global_reg_mentioned_p_1,
5215         global_reg_mentioned_p): Remove.
5216         * rtl.h: Remove the prototype for global_reg_mentioned_p.
5217
5218         * flow.c (initialize_uninitialized_subregs): Make it static.
5219         * rtl.h: Remove the prototype for
5220         initialize_uninitialized_subregs.
5221
5222         * function.c (instantiate_virtual_regs): Make it static.
5223         * function.h: Remove the prototype for
5224         instantiate_virtual_regs.
5225
5226         * regmove.c (regmove_optimize, combine_stack_adjustments):
5227         Make them static.
5228         * rtl.h: Remove the prototypes for regmove_optimize and
5229         combine_stack_adjustments.
5230
5231 2006-01-17  Roger Sayle  <roger@eyesopen.com>
5232
5233         * config/i386/i386.c (COSTS_N_BYTES): New macro.
5234         (size_cost): Encode costs in bytes so that a reg-reg addition is
5235         equivalent to COSTS_N_INSNS(1).
5236         (override_options): Use the size_cost.branch_cost as the default
5237         ix86_branch_cost when optimizing for size.
5238
5239 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5240
5241         * Makefile.in (D32PBIT_FUNCS): New.
5242         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
5243         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
5244         D64PBIT_FUNCS and D128PBIT_FUNCS.
5245         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
5246         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
5247         D128PBIT are set.
5248         (decnumber_dep): Define.
5249         * doc/libgcc.texi (Decimal float library routines): New node.
5250         * config/dfp-bit.h, config/dfp-bit.c: New files.
5251
5252 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5253
5254         * expr.c (emit_move_change_mode): Always adjust addresses, not
5255         just during reload.  Copy replacements only during reload.
5256         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
5257         emit_move_via_integer.
5258
5259 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
5260
5261         * Makefile.in (check-%, check-consistency): Use $${srcdir}
5262         instead of $(srcdir) and ${srcdir}.
5263
5264 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
5265
5266         PR target/592
5267         PR middle-end/11135
5268         * arm.h (struct machine_function): Add pic_reg.
5269         * arm.c (arm_pic_register): Make unsigned.
5270         (arm_override_options): Only set arm_pic_register if
5271         TARGET_SINGLE_PIC_BASE.
5272         (use_return_insn): Only test for a pic register if it is fixed.
5273         (arm_compute_save_reg0_reg12_mask): Likewise.
5274         (thumb_compute_save_reg_mask): Likewise.
5275         (legitimate_pic_operand): Factor out some known invariants.
5276         (legitimize_pic_address): If we don't have a fixed pic register,
5277         then set up a pseudo in the function entry sequence.  Handle the
5278         pic base being in a pseudo.
5279         (arm_load_pic_register): Handle the pic register being in a pseudo.
5280         (arm_expand_prologue): Only set up the pic register if it is fixed.
5281         (thumb_expand_prologue): Likewise.
5282         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
5283         (pic_load_addr_based_insn): Likewise.
5284         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
5285         fixed.
5286
5287 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5288
5289         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
5290         decimal float modes for all floating point registers.
5291
5292         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
5293         match_code "mem" with match_test "macho_lo_sum_memory_operand".
5294
5295 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
5296
5297         PR c/25682
5298         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
5299         even when the pointer is not NULL.
5300
5301 2006-01-16  Ian Lance Taylor  <ian@airs.com>
5302
5303         * common.opt (ftoplevel-reorder): New option.
5304         * cgraph.c (cgraph_asm_nodes): New global variable.
5305         (cgraph_asm_last_node): New static variable.
5306         (cgraph_order): New global variable.
5307         (cgraph_create_node): Set new order field.
5308         (cgraph_varpool_node): Likewise.
5309         (decide_is_variable_needed): Return true if not
5310         flag_toplevel_reorder.
5311         (cgraph_add_asm_node): New function.
5312         * cgraph.h (struct cgraph_node): Add order field.
5313         (struct cgraph_varpool_node): Add order field.
5314         (struct cgraph_asm_node): Define.
5315         (cgraph_asm_nodes, cgraph_order): Declare.
5316         (cgraph_add_asm_node): Declare.
5317         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
5318         function.
5319         (cgraph_varpool_assemble_pending_decls): Call it.
5320         (cgraph_output_pending_asms): New static function.
5321         (cgraph_finalize_compilation_unit): Call it.
5322         (struct cgraph_order_sort): Define.
5323         (cgraph_output_in_order): New static function.
5324         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
5325         !flag_toplevel_reorder case.
5326         * c-parser.c: Include "cgraph.h".
5327         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
5328         assemble_asm.
5329         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
5330         than -fno-unit-at-a-time.
5331         * doc/invoke.texi (Option Summary): Mention
5332         -fno-toplevel-reorder.
5333         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
5334         -funit-at-a-time documentation.
5335
5336 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
5337             Kazu Hirata  <kazu@codesourcery.com>
5338
5339         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
5340
5341 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
5342
5343         * Makefile.in (FUNCTION_H): New.  Use it instead of
5344         function.h throughout the file.
5345         * function.h: Include tree.h.
5346
5347 2006-01-17  Ben Elliston  <bje@au.ibm.com>
5348
5349         * recog.c: Separate some functions with whitespace.
5350
5351 2006-01-16  Richard Henderson  <rth@redhat.com>
5352
5353         Merge from gomp branch:
5354         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
5355         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
5356         and rename from struct inline_data.  Rename callee* to dst*;
5357         caller* to src*; add copy_decl hook, transform_call_graph_edges,
5358         transform_new_cfg, transform_return_to_modify, and
5359         transform_lang_insert_block flags; remove cloning_p, versioning_p,
5360         update_clones_p.
5361         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
5362         (copy_decl_for_dup): Remove.
5363         * tree-inline.c (struct inline_data): Move to header.
5364         (insert_decl_map): Export.
5365         (remap_decl): Update for member name changes.  Use copy_decl hook.
5366         Allow for replacement to be a non-decl.  Remove dead code.
5367         (remap_type_1): Check for existing mapping.
5368         (remap_type): Export.
5369         (remap_decls): Update for member name changes.
5370         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
5371         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
5372         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
5373         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
5374         (tree_function_versioning, build_duplicate_type): Likewise.
5375         (copy_body_r): Likewise.  Export.
5376         (copy_decl_for_dup): Split into ...
5377         (copy_decl_for_dup_finish, copy_decl_to_var,
5378         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
5379         (replace_ref_tree, inlining_p): Remove.
5380
5381 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5382
5383         * ifcvt.c (if_convert): Make it static.
5384         * rtl.h: Remove the prototype for if_convert.
5385
5386         * local-alloc.c (local_alloc): Make it static.
5387         * rtl.h: Remove the prototype for local_alloc.
5388
5389         * loop.c (loop_optimize): Make it static.
5390         * cfgloop.h: Remove the prototype for loop_optimize.
5391         * rtl.h: Likewise.
5392
5393 2006-01-16  DJ Delorie  <dj@redhat.com>
5394
5395         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
5396         mems.
5397
5398 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5399
5400         * pa.md: Disparage copies between general and floating-point registers
5401         in 32-bit move patterns.
5402
5403 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
5404
5405         PR testsuite/25741
5406         * Makefile.in (check-%): Depend on site.exp instead of
5407         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
5408         directories.
5409
5410 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5411
5412         * global.c (global_alloc): Make it static.
5413         * rtl.h: Remove the prototype for global_alloc.
5414
5415 2006-01-16  Richard Guenther  <rguenther@suse.de>
5416
5417         * tree-ssa-alias.c (struct used_part): Add write_only field.
5418         (get_or_create_used_part_for): Initialize it to true.
5419         (create_overlap_variables_for): Don't create structure variables
5420         for structures that only are written to.
5421         (find_used_portions): Handle MODIFY_EXPR to track whether a
5422         structure is only written to.
5423
5424 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5425
5426         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
5427         static.
5428         * basic-block.h: Remove the prototype for
5429         partition_hot_cold_basic_blocks.
5430
5431 2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>
5432
5433         * cppspec.c (lang_specific_spec_functions): Remove.
5434         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
5435         * gcc.h (lang_specific_spec_functions): Remove.
5436         * gccspec.c (lang_specific_spec_functions): Remove.
5437
5438 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
5439
5440         * combine.c (record_value_for_reg): Invalidate registers
5441         if INSN is null.
5442         (record_dead_and_set_regs_1): Likewise, by passing them to
5443         record_value_for_reg.
5444         (record_dead_and_set_regs): Invalidate stores made by a
5445         call.  We do not combine across a call, but we still
5446         relied on equivalences.
5447
5448 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5449
5450         * tree-vrp.c (extract_range_from_binary_expr): Cope with
5451         vrp_int_const_binop returning non-constant nodes.
5452
5453 2006-01-16  Paul Brook  <paul@codesourcery.com>
5454
5455         * config/m68k/m68k.c (output_move_const_into_data_reg):
5456         Output correct mnemonic for mvz and mvs.
5457
5458 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
5459
5460         * rtl-factoring.c: Add sequence abstraction algorithm.
5461         * cfgcleanup.c (outgoing_edges_match): Extra checks.
5462         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
5463         ABNORMAL edges.
5464         (block_has_preserve_label): New function.
5465         * common.opt: Register new pass.
5466         * Makefile.in: Ditto.
5467         * passes.c: Ditto.
5468         * timevar.def: Ditto.
5469         * tree-pass.h: Ditto.
5470         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
5471         * rtl.h (make_jump_insn_raw): Add forward decl.
5472         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
5473
5474 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5475             Roger Sayle  <roger@eyesopen.com>
5476
5477         * fold-const.c (fold_minmax): New static function.
5478         (fold_binary) <MIN_EXPR>: Call it.
5479         <MAX_EXPR>: Likewise.
5480         * stor-layout.c (place_field): Use DECL_SIZE consistently
5481         in the computation of the new record size.
5482
5483 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5484
5485         * cse.c (cse_condition_code_reg): Make it static.
5486         * rtl.h: Remove the prototype for cse_condition_code_reg.
5487
5488         * combine.c (combine_instructions): Make it static.
5489         * rtl.h: Remove the prototype for combine_instructions.
5490
5491 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5492
5493         PR target/25168
5494         * tree.c (get_file_function_name_long): Concatenate the first global
5495         object name with a string derived from the input filename of the object
5496         for type "F".
5497
5498 2006-01-16  Ben Elliston  <bje@au.ibm.com>
5499
5500         * config/i386/winnt-stubs.c: Update FSF address.
5501         * config/xtensa/ieee754-df.S: Ditto.
5502         * config/xtensa/ieee754-sf.S: Ditto.
5503
5504 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5505
5506         * ifcvt.c (noce_init_if_info): New static function, broken out of
5507         noce_process_if_block.
5508         (noce_process_if_block): Call noce_init_if_info.
5509         (check_cond_move_block): New static function.
5510         (cond_move_process_if_block): New static function.
5511         (process_if_block): Call cond_move_process_if_block.
5512
5513 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
5514
5515         * cselib.c (hash_table): Rename to cselib_hash_table.
5516         (cselib_clear_table, discard_useless_values,
5517         remove_useless_values, cselib_lookup_mem, cselib_lookup,
5518         cselib_init, cselib_finish): Adjust uses of hash_table.
5519
5520 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
5521
5522         PR tree-optimization/25485
5523         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
5524         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
5525         is known to be false and true, respectively.
5526
5527 2006-01-14  Richard Guenther  <rguenther@suse.de>
5528
5529         PR tree-optimization/22548
5530         PR tree-optimization/22555
5531         PR tree-optimization/22501
5532         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
5533         * params.def (salias-max-array-elements): New parameter.
5534         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
5535         * doc/invoke.texi (salias-max-array-elements): Document.
5536         * tree-flow-inline.h (var_can_have_subvars): We also handle
5537         arrays now.
5538         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
5539         COMPONENT_REF.
5540         * tree-ssa-structalias.c (params.h): Include.
5541         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
5542         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
5543         (get_constraint_for): For ADDR_EXPR operating on something
5544         containing an ARRAY_REF, add all subvars to the solution.
5545         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
5546         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
5547         for creating MUST_DEFs.
5548         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
5549
5550 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
5551
5552         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
5553         functions.
5554         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
5555         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
5556         number_of_iterations_le): New functions.
5557         (number_of_iterations_special): Removed.
5558         (number_of_iterations_exit): Do not use number_of_iterations_special.
5559         * tree.c (unsigned_type_for): Always return integer type.
5560
5561 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
5562         Richard Guenther  <rguenther@suse.de>
5563
5564         PR rtl-optimization/24257
5565         * gcse.c (find_moveable_store): Only consider a store movable
5566         when the SET_SRC of the insn can be assigned to a register.
5567
5568 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5569
5570         * tree.c (tree_not_class_check_failed): New function.
5571         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
5572         (tree_not_class_check_failed): Declare.
5573
5574 2006-01-13  Ian Lance Taylor  <ian@airs.com>
5575
5576         * reload1.c (do_output_reload): Add assertion rejecting a
5577         CALL_INSN.
5578
5579 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
5580
5581         * combine.c (struct reg_stat): Add new fields truncation_label and
5582         truncated_to_mode.
5583         (record_value_for_reg): Reset truncated_to_mode.
5584         (record_truncated_value): New function.
5585         (check_promoted_subreg): Call it.  Rename to check_conversions.
5586         (combine_instructions): Rename check_promoted_subreg to
5587         check_conversions.
5588         (reg_truncated_to_mode): New function.
5589         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
5590         (gen_lowpart_or_truncate): New function.
5591         (force_to_mode): Use it instead of gen_lowpart.
5592
5593 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
5594
5595         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
5596         VAR is a tag, not its type tag.
5597
5598 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
5599
5600         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
5601         alternatives to match style of other entries.
5602         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
5603
5604 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
5605
5606         PR tree-optimization/25771
5607         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
5608         SSA_NAMES.
5609
5610 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
5611
5612         PR tree-opt/24365
5613         * tree-inline.c (declare_return_variable): If the return variable
5614         was marked as a non gimple complex, set the return slot variable
5615         to be a non gimple comple variable.
5616
5617 2006-01-13  Richard Guenther  <rguenther@suse.de>
5618
5619         * builtins.c (expand_builtin_sincos): New function.
5620         (expand_builtin_mathfn_3): Remove dead code, sin and cos
5621         do not set errno.
5622         (expand_builtin): Expand sincos using expand_builtin_sincos.
5623
5624 2006-01-12  DJ Delorie  <dj@redhat.com>
5625
5626         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
5627         shift counts, separate SI shifts for m32c vs m16c, pass shift type
5628         so that constant shifts can be split.
5629         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
5630         (m32c_valid_pointer_mode): Make static.
5631         (shift_gen_func_for): New.
5632         (m32c_prepare_shift): Use it.  Split large const shifts into
5633         multiple shifts.
5634         * config/m32c/predicates.md (shiftcount_operand): Allow more
5635         general operands.
5636         (longshiftcount_operand): New.
5637         * doc/md.texi (Machine Constraints): Document In6.
5638
5639 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5640
5641         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
5642         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
5643         documentation.
5644
5645 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
5646
5647         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
5648         to try to avoid clobbering pieces of structures when we know
5649         something about the whole structure.
5650         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
5651
5652 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5653
5654         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
5655         return in memory, as this is no limitation is no longer present.
5656
5657 2006-01-12  DJ Delorie  <dj@redhat.com>
5658
5659         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
5660         mova with fb, and for fb+0 -> An.
5661
5662         * config/m32c/mov.md (peephole2): Fix enabling logic.
5663
5664         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
5665         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
5666         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
5667         FINI_ARRAY_SECTION_ASM_OP): Define.
5668
5669         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
5670         variable.
5671         (m32c_legitimize_reload_address): New logic to reload FB to An.
5672         (m32c_output_reg_push): Add newline.
5673         (m32c_output_reg_pop): Likewise.
5674
5675 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
5676
5677         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
5678
5679 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
5680
5681         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
5682
5683 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5684
5685         * config/sh/predicates.md (sh_rep_vec): Add parallel to
5686         match_code.
5687
5688 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5689
5690         * rtlanal.c (find_reg_note): Assert insn is not null.
5691
5692 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5693
5694         * df-scan.c (df_hard_reg_init): Move declaration of i outside
5695         ifdef.
5696
5697 2006-01-11  Jeff Law  <law@redhat.com>
5698
5699         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
5700         hold edge pairs.
5701         (mark_threaded_blocks, register_jump_thread): New functions.
5702         (thread_through_all_blocks): Remove unwanted argument.  No
5703         longer rely on e->aux to communicate thread target info.
5704         Call mark_threaded_blocks.  Release the threaded_blocks
5705         bitmap and threaded_edges vector when complete.
5706         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
5707         (threaded_blocks): Remove.
5708         (tree_ssa_dominator_optimize): Remove initialization and
5709         finalization of threaded_blocks.  Simplify call to
5710         thread_through_all_blocks.
5711         (thread_across_edge): Call register_jump_thread rather than
5712         storing thread information into e->aux.
5713         (free_all_edge_infos): Simplify now that e->aux is no longer
5714         used to communicate with thread_through_all_blocks.
5715         * tree-flow.h (thread_through_all_blocks): Update prototype.
5716         (register_jump_thread): Prototype.
5717
5718 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5719
5720         * df-core.c (df_compact_blocks, df_bb_replace): Use
5721         SET_BASIC_BLOCK instead of BASIC_BLOCK.
5722
5723 2006-01-11  Richard Guenther  <rguenther@suse.de>
5724
5725         PR tree-optimization/25734
5726         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
5727         stop propagation after successful propagation to the LHS.
5728
5729 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5730
5731         * basic-block.h (control_flow_graph): Change the type of
5732         x_basic_block_info to VEC(basic_block,gc) *.
5733         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
5734         basic_block_info.
5735         (SET_BASIC_BLOCK): New.
5736         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
5737         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
5738         * cfgbuild.c (find_basic_blocks): Likewise.
5739         * cfglayout.c (fixup_reorder_chain): Likewise.
5740         * cfgrtl.c (create_basic_block_structure,
5741         rtl_create_basic_block): Likewise.
5742         * ifcvt.c (find_if_case_1): Likewise.
5743         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
5744         Likewise.
5745
5746 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5747
5748         * Makefile.in: Removed rotted odf.c entry.
5749
5750 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
5751
5752         PR target/25706
5753         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
5754         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
5755         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
5756         output pattern modifier, not %e.
5757         * config/cris/cris.c (cris_op_str): Update comment about pattern
5758         modifier.
5759         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
5760         before falling through into...
5761         <case 'E'>: Redefined from old 'e' case.
5762
5763 2006-01-11  Jan Hubicka  <jh@suse.cz>
5764
5765         PR target/25042
5766         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
5767
5768 2006-01-11  Jan Hubicka  <jh@suse.cz>
5769
5770         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
5771         * i386.c (x86_decompose_lea): Kill.
5772         (ix86_rtx_costs): Kill.
5773
5774 2006-01-11  Jan Hubicka  <jh@suse.cz>
5775
5776         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
5777         * cgraph.h (cgraph_node): Add inline_decl.
5778         (cgraph_insert_node_to_hashtable): Declare.
5779         (save_inline_function_body): Declare.
5780         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
5781         clones.
5782         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
5783         (cgraph_function_versioning): Update call of tree_function_versioning.
5784         (save_inline_function_body): New function.
5785         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
5786         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
5787         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
5788         (cgraph_default_inline_p): Likewise.
5789         (cgraph_decide_inlining_incrementally): Likewise.
5790         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
5791         (copy_bb): Kill saving; do updating of clones.
5792         (copy_cfg_body): Kill saving.
5793         (initialize_inlined-parameters): Likewise.
5794         (expand_call_inline): Likewise.
5795         (save_body): Kill.
5796         (tree_function_versioning): New parameter "update_clones".
5797         (inlining_p): Kill saving.
5798         * tree-inline.h (tree_function_versioning): Update prototype.
5799         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
5800         saving.
5801
5802 2006-01-11  Ian Lance Taylor <ian@airs.com>
5803
5804         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
5805         Allow undoing set of machine mode.
5806         (do_SUBST): Use enums instead of is_int.
5807         (do_SUBST_MODE): New function.
5808         (SUBST_MODE): New macro.
5809         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
5810         reg and trying to replace reg_regno_rtx with a new register.
5811         (undo_all): Use new enums, handle undoing a PUT_MODE change.
5812         (simplify_set): Use SUBST_MODE.
5813         (distribute_notes): Remove code that tried to update reg notes
5814         for regno_reg_rtx changes.
5815
5816 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
5817
5818         PR tree-optimization/23109
5819         PR tree-optimization/23948
5820         PR tree-optimization/24123
5821
5822         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
5823         * tree-cfg.c (single_noncomplex_succ): New.
5824         * tree-flow.h (single_noncomplex_succ): Declare it.
5825         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5826         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5827         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
5828         insert_bb, register_division_in, insert_reciprocals,
5829         replace_reciprocal, free_bb): New.
5830         (execute_cse_reciprocals_1): Rewritten.
5831         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
5832         Do not commit any edge insertion.  Always compute dominators and
5833         create the allocation pool.
5834         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
5835         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
5836         * targhooks.c (default_min_divistions_for_recip_mul): New.
5837         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
5838         * passes.c (init_optimization_passes): Run recip after tree loop
5839         optimizations.
5840         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
5841
5842 2006-01-11  Danny Berlin <dberlin@dberlin.org>
5843             Kenneth Zadeck <zadeck@naturalbridge.com>
5844
5845         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
5846         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
5847         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
5848         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
5849         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
5850         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
5851         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
5852         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
5853         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
5854         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
5855         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
5856         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
5857         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
5858         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
5859         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
5860         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
5861         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
5862         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
5863         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
5864         DF_SCAN_POST_ALLOC): New macros.
5865         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
5866         df_free_bb_function, df_local_compute_function, df_init_function,
5867         df_dataflow_function, df_confluence_function_0,
5868         df_confluence_function_n, df_transfer_function,
5869         df_finalizer_function, df_free_function, df_dump_problem_function,
5870         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
5871         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
5872         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
5873         df_urec_bb_info, ) New types.
5874         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
5875         variables.
5876         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
5877         df_analyze_simple_change_some_blocks,
5878         df_analyze_simple_change_one_block, df_compact_blocks,
5879         df_bb_replace, df_bb_regno_last_use_find,
5880         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
5881         df_insn_regno_def_p, df_find_def, df_find_use,
5882         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
5883         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
5884         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
5885         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
5886         debug_df_chain, df_get_dependent_problem, df_chain_create,
5887         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
5888         df_grow_bb_info, df_chain_dump, df_print_bb_index,
5889         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
5890         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
5891         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
5892         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
5893         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
5894         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
5895         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
5896         df_ref_remove, df_insn_refs_delete, df_refs_delete,
5897         df_reorganize_refs, df_set_state, df_hard_reg_init,
5898         df_read_modify_subreg_p) New public functions.
5899         * df-core.c: The core dataflow solver and glue routines for rtl
5900         dataflow.
5901         (df_init, df_add_problem, df_set_blocks, df_finish,
5902         df_hybrid_search_forward, df_hybrid_search_backward,
5903         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
5904         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
5905         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
5906         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
5907         df_reg_defined, df_find_use, df_reg_used, df_dump,
5908         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
5909         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
5910         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
5911         debug_df_useno, reset_df_after_reload): New functions.
5912         * df-scan.c: The scanning fuctions, once in df.c, completely
5913         rewritten so that they now fully model the functionality of
5914         register usage at the backend.
5915         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
5916         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
5917         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
5918         df_grow_insn_info, df_rescan_blocks, df_ref_create,
5919         df_get_artificial_defs, df_get_artificial_uses,
5920         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
5921         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
5922         df_refs_delete, df_reorganize_refs, df_set_state,
5923         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
5924         df_def_record_1, df_defs_record, df_uses_record,
5925         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
5926         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
5927         df_record_exit_block_uses, df_hard_reg_init): New functions.
5928
5929         * df-problems.c: Seven concrete dataflow problems that use the
5930         scanning in df-scan.c and are solved by the engine in df-core.c.
5931         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
5932         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
5933         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
5934         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
5935         df_ru_free_bb_info, df_ru_alloc,
5936         df_ru_bb_local_compute_process_def,
5937         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
5938         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
5939         df_ru_transfer_function, df_ru_free, df_ru_dump,
5940         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
5941         df_rd_free_bb_info, df_rd_alloc,
5942         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
5943         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
5944         df_rd_transfer_function, df_rd_free, df_rd_dump,
5945         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
5946         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
5947         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
5948         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
5949         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
5950         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
5951         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
5952         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
5953         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
5954         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
5955         df_urec_mark_reg_change, df_urec_check_earlyclobber,
5956         df_urec_mark_reg_use_for_earlyclobber,
5957         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
5958         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
5959         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
5960         df_urec_dump, df_urec_add_problem, df_chain_alloc,
5961         df_chain_create_bb_process_use, df_chain_create_bb,
5962         df_chain_finalize, df_chain_free, df_chains_dump,
5963         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
5964         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
5965         df_reg_lifetime): New functions.
5966         * df.c: Deleted file.
5967         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
5968         consistent with new df api.
5969         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
5970         rest_of_handle_sms): Ditto.
5971         * web.c (unionfind_union, union_defs, entry_register, web_main):
5972         Ditto.
5973         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
5974         invariant_expr_equal_p, find_defs, check_dependencies,
5975         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
5976         free_inv_motion_data, move_loop_invariants): Ditto.
5977         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
5978         Update dependencies.
5979         (odf.c): Added defective entry that was deleted later in day.
5980         * sched-deps.c (sched_analyze_1): Ditto.
5981
5982 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
5983
5984         * tree-ssa-operands.c (get_expr_operands): Record addressable
5985         variables directly.  Do not call add_stmt_operands for CONST_DECLs
5986         and ARRAY_DECLs.
5987         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
5988         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
5989
5990 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5991
5992         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
5993         function returns true in the positive case.
5994
5995 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5996
5997         PR target/20754
5998         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
5999         for SI, DI, SF and DF modes.  Add alternatives to copy between
6000         general and floating point registers to the 32-bit patterns.
6001         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
6002         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
6003         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
6004         generating 64-bit code.
6005         * config/pa/pa.c (output_move_double): Handle copies between general
6006         and floating registers.
6007
6008 2006-01-10  Stuart Hastings  <stuart@apple.com>
6009
6010         * config/i386/i386.md (set_got): Update.
6011         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
6012         (builtin_setjmp_receiver): Mach-O support.
6013         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
6014         (GOT_SYMBOL_NAME): Define.
6015         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
6016         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
6017         * config/i386/i386.c (override_options): Revise for Darwin.
6018         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
6019         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
6020         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
6021         * config/i386/i386-protos.h (output_set_got): Likewise.
6022         * config/darwin.c (machopic_legitimize_pic_address): Update
6023         regs_ever_live[].
6024
6025 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
6026
6027         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
6028         when MODE isn't BLKmode.
6029
6030 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
6031
6032         PR rtl-optimization/25367
6033         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
6034
6035 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
6036
6037         PR target/25718
6038         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
6039         for a negative bound.
6040
6041 2006-01-10  Richard Guenther  <rguenther@suse.de>
6042
6043         * tree-ssa-structalias.c (get_constraint_for_component_ref):
6044         Never override with anything constraint.
6045
6046 2006-01-10  Jan Beulich  <jbeulich@novell.com>
6047
6048         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
6049         256 bits when optimize_size.
6050
6051 2006-01-10  Jan Beulich  <jbeulich@novell.com>
6052
6053         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
6054         MASK_ALIGN_DOUBLE.
6055         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
6056         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
6057         arguments.
6058
6059 2006-01-10  Ben Elliston  <bje@au.ibm.com>
6060
6061         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
6062         float modes.
6063         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
6064         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
6065         (USE_FP_FOR_ARG): Reject decimal float modes.
6066         (function_arg_advance): Likewise.
6067         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
6068         (rs6000_handle_altivec_attribute): Do not permit decimal floating
6069         point types in AltiVec vectors.
6070         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
6071         (rs6000_libcall_value): Likewise.
6072
6073 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
6074
6075         * config/xtensa/ieee754-df.S: New file.
6076         * config/xtensa/ieee754-sf.S: New file.
6077         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
6078         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
6079         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
6080
6081 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
6082
6083         * config/sh/predicates.md (binary_float_operator,
6084         binary_logical_operator, commutative_float_operator,
6085         equality_comparison_operator, greater_comparison_operator,
6086         less_comparison_operator, logical_operator,
6087         noncommutative_float_operator, shift_operator,
6088         symbol_ref_operand, unary_float_operator): Remove redundant
6089         conditionals.
6090
6091 2006-01-09  Jeff Law  <law@redhat.com>
6092
6093         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
6094         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
6095         now unused arguments.  Callers updated.
6096         (eliminate_redundant_computations): Remove now unused arguments,
6097         callers updated.
6098         (local_fold): Remove, no longer used.
6099         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
6100         and moved to...
6101         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
6102         (simplify_cond): New function.
6103         (forward_propagate_into_cond): Call simplify_cond.
6104
6105 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
6106
6107         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
6108         (*vec_extractv2di_1_sse): New.
6109
6110 2006-01-09  Ben Elliston  <bje@au.ibm.com>
6111
6112         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
6113
6114 2006-01-08  Richard Guenther  <rguenther@suse.de>
6115
6116         * tree-ssa-structalias.c (get_constraint_for): Remove
6117         anyoffset argument.
6118         (get_constraint_for_component_ref): Likewise.
6119         (do_deref): Likewise.
6120         (get_constraint_for): Likewise.
6121         (do_structure_copy): Likewise.
6122         (handle_ptr_arith): Likewise.
6123         (find_func_aliases): Likewise.  Remove unused need_anyoffset
6124         variable.
6125
6126 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
6127             Kaz Kojima  <kkojima@gcc.gnu.org>
6128
6129         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
6130         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
6131         (EXTRA_CONSTRAINT_C16): Remove.
6132         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
6133         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
6134         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
6135         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
6136         constants of SHmedia.  Handle nested constant expressions of
6137         SHmedia correctly.
6138         (andcosts): Fix the costs for SHmedia constants.
6139         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
6140         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
6141         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
6142         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
6143         (movv4hi_i, movv2si_i): Likewise.
6144         (movsi_const): Adjust the second operand of ior so to match with
6145         the Csu constraint.
6146         (movdi_const, movdi_const_32bit): Likewise.
6147         (movdi_const_16bit+1): Don't sign-extend LOW.
6148         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
6149         step.
6150         (*double_shori): Fix the split condition.  Use GEN_INT instead
6151         of get_int_mode calls.  Mask lower 16-bit of the argument of
6152         the last GEN_INT.
6153         (sym2GOTPLT): Remove.
6154         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
6155         gen_rtx_UNSPEC.
6156         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
6157         instead of EXTRA_CONSTRAINT_C16.
6158
6159 2006-01-07  Ian Lance Taylor  <ian@airs.com>
6160             David Edelsohn  <edelsohn@gnu.org>
6161
6162         PR rtl-optimization/25662
6163         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
6164         for constant operands instead of simplify_gen_binary.
6165         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
6166         after trying simplify_binary_operation
6167
6168 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
6169
6170         * tree.c (iterative_hash_expr): Hash decls based on UID.
6171
6172 2006-01-06  Eric Christopher  <echristo@apple.com>
6173
6174         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
6175         (TARGET_UNWIND_EMIT): Fix spelling.
6176         * target.h (gcc_target): Add except_table_label.
6177         * except.c (output_function_exception_table): Use.
6178         * varasm.c (default_emit_except_table_label): New.
6179         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
6180         define.
6181         (asm_out): Add here.
6182         * output.h (default_emit_except_table_label): Prototype.
6183         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
6184         * config/darwin.c (darwin_emit_except_table_label): Define.
6185         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
6186
6187 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
6188
6189         PR tree-optimization/18527
6190         * tree-ssa-loop-niter.c (number_of_iterations_cond,
6191         number_of_iterations_special, number_of_iterations_exit):
6192         Move base and step of an iv to a single structure.  Add
6193         no_overflow flag, and use it in # of iterations analysis.
6194         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
6195         folded_casts argument.
6196         (simple_iv): Pass base and step in a structure.  Set no_overflow
6197         flag.
6198         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
6199         Evaluate expensiveness of computing # of iterations instead of
6200         the final expression.
6201         * tree-scalar-evolution.h (affine_iv): New structure.
6202         (simple_iv): Declaration changed.
6203         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
6204         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
6205         find_givs_in_stmt): Changed due to simple_iv change.
6206
6207 2006-01-06  Jeff Law  <law@redhat.com>
6208
6209         PR ada/24994
6210         * tree-cfg.c (bsi_replace): Rename final argument from
6211         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
6212         change (stmt -> orig_stmt).
6213         * tree-eh.c (verify_eh_throw_stmt_node): New function.
6214         (bsi_remove): Add new argument.  Remove EH information
6215         if requested.
6216         (verify_eh_throw_table_statements): New function.
6217         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
6218         updated.
6219         * tree-optimize.c (execute_free_cfg_annotations): Verify
6220         the EH throw statement table after removing annotations.
6221         * except.h (verify_eh_throw_table_statements): Prototype.
6222         * tree-flow.h (bsi_remove): Update prototype.
6223         * tree-vrp.c (remove_range_assertions): Add new argument to
6224         bsi_remove call.
6225         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
6226         * tree-complex.c (expand_complex_div_wide): Likewise.
6227         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
6228         * tree-tailcall.c (eliminate_tailcall): Likewise.
6229         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
6230         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
6231         * tree-nrv.c (tree_nrv): Likewise.
6232         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
6233         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
6234         (combine_blocks): Likewise.
6235         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
6236         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
6237         (cleanup_control_flow): Likewise.
6238         (remove_forwarder_block): Likewise.
6239         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
6240         * tree-sra.c (sra_replace): Likewise.
6241         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
6242         (forward_propagate_single_use_vars): Likewise.
6243         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
6244         * tree-inline.c (expand_call_inline): Likewise.
6245         * tree-vect-transform.c (vect_transform_loop): Likewise.
6246         * tree-outof-ssa.c (rewrite_trees): Likewise.
6247         * tree-cfg.c (make_goto_expr_edges): Likewise.
6248         (cleanup_dead_labels): Likewise.
6249         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
6250         (bsi_move_before, bsi_move_after): Likewise.
6251         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
6252         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
6253
6254 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
6255
6256         PR tree-opt/25528
6257         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
6258         and IMAGPART_EXPR.
6259         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
6260         on non gimple variables.  Also add checks at the top for decls and
6261         mtags.
6262         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
6263         complex types.
6264         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
6265         and IMAGPART_EXPR for creating MUST_DEFs.
6266         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
6267         and NAME_MEMORY_TAG separately from the DECLs.
6268
6269 2006-01-06  Richard Guenther  <rguenther@suse.de>
6270
6271         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
6272         annotation, if necessary.
6273         * tree-ssa-pre.c (create_expression_by_pieces): Remove
6274         redundant calls to update_stmt.
6275         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
6276         Likewise.
6277
6278 2006-01-05  Richard Henderson  <rth@redhat.com>
6279
6280         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
6281
6282 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6283
6284         * c-typeck.c: Update copyright date.
6285
6286 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6287
6288         * c-typeck.c (build_c_cast): Always warn when casting
6289         from a pointer to an integer of different size, even if
6290         the node was constant.
6291
6292 2006-01-05  Richard Guenther  <rguenther@suse.de>
6293
6294         PR tree-optimization/22555
6295         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
6296         if one structure field is an array.
6297         * tree-ssa-operands.c (get_expr_operands): Continue scanning
6298         operands even if we found a subvar, but ignore VOPs in this
6299         case.
6300         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
6301         for renaming.
6302         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
6303
6304 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
6305
6306         PR middle-end/24998
6307         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
6308
6309 2006-01-05  Richard Guenther  <rguenther@suse.de>
6310             Diego Novillo  <dnovillo@redhat.com>
6311
6312         * tree-pass.h (TODO_remove_unused_locals): Define.
6313         * gimple-low.c (expand_var_p, remove_useless_vars,
6314         pass_remove_useless_vars): Remove.  Update all users.
6315         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
6316         (remove_unused_locals): New function.
6317         * tree-flow.h (remove_unused_locals): Declare.
6318         * passes.c (execute_todo): Call remove_unused_locals if
6319         TODO_remove_unused_locals is set.
6320         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
6321         * tree-ssa-dce.c (pass_dce): Likewise.
6322         * tree-outof-ssa.c (pass_del_ssa): Likewise.
6323
6324 2006-01-05  Richard Guenther  <rguenther@suse.de>
6325
6326         * tree-flow.h (struct fieldoff): Decompose field to
6327         type, size and decl.
6328         * tree-ssa-alias.c (create_sft): Take type as parameter.
6329         (create_overlap_variables_for): Store type, size and decl
6330         in the fieldoff structure.
6331         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
6332         of struct fieldoff.
6333         (push_fields_onto_fieldstack): Likewise.
6334         (create_variable_info_for): Likewise.  Use offset for the
6335         SFT name if the decl is not available.
6336
6337 2006-01-04  Paul Brook  <paul@codesourcery.com>
6338
6339         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
6340
6341 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
6342
6343         * lambda-code.c (can_put_in_inner_loop): Relax
6344         restrictions.
6345         (can_put_after_inner_loop): New function.
6346         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
6347         (perfect_nestify): Change to make copies and modify uses.
6348
6349 2006-01-04  Richard Henderson  <rth@redhat.com>
6350
6351         Merge from gomp branch:
6352         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
6353         via integer constant.
6354         (pragma_lex): Remove.
6355         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
6356         rather than parsing it.
6357         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
6358         handle_pragma_extern_prefix): Add %< %> quotes.
6359         (registered_pragmas): New.
6360         (c_register_pragma_1): New.
6361         (c_register_pragma): Use it.
6362         (c_register_pragma_with_expansion): Likewise.
6363         (c_invoke_pragma_handler): New.
6364         (init_pragma): Use cpp_register_deferred_pragma directly for
6365         pch_preprocess.
6366         * c-pragma.h (enum pragma_kind): New.
6367         (pragma_handler): New.
6368         (c_invoke_pragma_handler): Declare.
6369         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
6370         CPP_PRAGMA_EOL.
6371         * c-common.h (c_common_pch_pragma): Update decl.
6372         * Makefile.in (c-parser.o): Update dependencies.
6373         (GTFILES): Add c-pragma.h.
6374         * c-parser.c (struct c_token): Add pragma_kind.
6375         (struct c_parser): Add in_pragma.
6376         (c_lex_one_token): Always initialize keyword and pragma_kind.
6377         Extract data for CPP_PRAGMA.
6378         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
6379         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
6380         Don't allow CPP_PRAGMA_EOL if in_pragma.
6381         (c_parser_consume_pragma): New.
6382         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
6383         (c_parser_skip_to_end_of_parameter): Likewise.
6384         (c_parser_skip_to_end_of_block_or_statement): Likewise.
6385         (c_parser_skip_to_pragma_eol): New.
6386         (c_parser_external_declaration): Handle CPP_PRAGMA.
6387         (c_parser_compound_statement_nostart): Likewise.
6388         (c_parser_statement_after_labels): Likewise.
6389         (c_parser_pragma): New.
6390         (pragma_lex): Likewise.
6391         (c_parser_pragma_pch_preprocess): New.
6392         (c_parser_new): Merge into ...
6393         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
6394
6395 2006-01-04  Jeff Law  <law@redhat.com>
6396
6397         PR ada/24994
6398         * tree-cfg.c (bsi_replace): Remove the original statement
6399         from the EH throw statement table.
6400
6401 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
6402
6403         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
6404         make the prototype extern "C" and add throw ().
6405
6406         PR target/25554
6407         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
6408         and pos non-negative and pos + len <= 32.
6409         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
6410         drop pos + len < HOST_BITS_PER_WIDE_INT test.
6411         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
6412
6413         PR c/25559
6414         * c-common.c (handle_vector_size_attribute): Reject zero vector size
6415         as well as sizes not multiple of component size.
6416
6417         PR debug/25562
6418         * function.c (instantiate_expr): New function.
6419         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
6420         walk its DECL_VALUE_EXPR with instantiate_expr.
6421
6422         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
6423         DW_OP_deref{,_size} if address isn't going to be added.
6424
6425 2006-01-04  Ben Elliston  <bje@au.ibm.com>
6426
6427         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
6428         * config/fp-bit.c: Likewise.
6429
6430 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
6431
6432         * dominance.c: Add comment about why we use DFS numbering
6433         of dominance tree.
6434
6435 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6436             Richard Henderson  <rth@redhat.com>
6437
6438         Merge from gomp-branch:
6439         * varasm.c (assemble_variable): Handle thread-local COMMON data.
6440         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
6441
6442 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
6443
6444         PR rtl-optimization/25578
6445         * combine.c (combine_simplify_rtx, force_to_mode): Don't
6446         pass a parameter to simplify_shift_const if changing ASHIFTRT
6447         to LSHIFTRT.
6448
6449 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
6450
6451         * builtins.c (get_builtin_sync_mem): New function.
6452         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
6453         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
6454         Call get_builtin_sync_mem to generate mem rtx.
6455
6456 2006-01-03  Richard Guenther  <rguenther@suse.de>
6457
6458         PR c/25183
6459         * stmt.c (add_case_node): Make sure to clear overflow flags
6460         from ranges.
6461
6462 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6463
6464         Merge from gomp-branch.
6465         * config/sparc/sync.md: New file.
6466         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
6467         UNSPECV_LDSTUB): New constants.
6468         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
6469         * config/sparc/predicates.md (memory_reg_operand): New predicate.
6470         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
6471         prototype.
6472
6473 2006-01-03  Roger Sayle  <roger@eyesopen.com>
6474
6475         * combine.c (reg_subword_p): New predicate to test whether the
6476         destination of a set refers to a subword/piece of a register.
6477         (try_combine): Generalize the code to merge the setting of a
6478         pseudo to a constant followed by a set of a subword of that
6479         register to a constant.
6480
6481 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
6482
6483         * basic-block.h (control_flow_graph): Change the type of
6484         x_label_to_block_map to VEC(basic_block,gc) *.
6485         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
6486         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
6487
6488         * tree-ssa-propagate.c (cfg_blocks): Change the type to
6489         VEC(basic_block,heap) *.
6490         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
6491         ssa_prop_fini): Adjust the uses of cfg_blocks.
6492
6493 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
6494
6495         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
6496         COMPONENT_REFs.
6497         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
6498         hashing trees instead of a pointer hash.
6499         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
6500         compare for MEM_EXPR.
6501
6502         PR rtl-optimization/25130
6503         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
6504         when comparing MEMs for GCSE
6505
6506 2006-01-03  Ben Elliston  <bje@au.ibm.com>
6507
6508         * targhooks.h (default_decimal_float_supported_p): Declare.
6509         * targhooks.c (default_decimal_float_supported_p): Define.
6510         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
6511         `default_decimal_float_supported_p'.
6512         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
6513
6514 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
6515
6516         * combine.c (apply_distributive_law <SUBREG>): Check
6517         TRULY_NOOP_TRUNCATION.
6518
6519 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
6520
6521         * dwarf2out.c (have_switched_text_section): Delete.
6522         (have_multiple_function_sections): New.
6523         (have_location_lists): Make 'bool'.
6524         (add_AT_loc_list): Use 'true' not '1'.
6525         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
6526         (output_loc_list): Use have_multiple_function_sections.
6527         (output_ranges): Likewise.
6528         (dwarf2out_begin_function): Set have_multiple_function_sections if
6529         necessary.
6530         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
6531         Check function_section rather than DECL_SECTION_NAME.
6532         (dwarf2out_finish): Use have_multiple_function_sections.
6533         Don't clear have_location_lists.
6534
6535 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
6536             Jan Hubicka  <jh@suse.cz>
6537
6538         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
6539         case of conditional jump jumping to the next instruction.
6540         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
6541         cases of conditional jump jumping to the next instruction.
6542
6543 2006-01-02  Jan Hubicka  <jh@suse.cz>
6544
6545         * i386.c (*_cost): Add COSTS_N_INSNS.
6546         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
6547
6548 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
6549
6550         PR target/25259
6551         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
6552
6553 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
6554
6555         * config/arm/arm.c (all_fpus): Fix comment typo.
6556         * config/darwin.c: Likewise.
6557         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
6558         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
6559         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
6560
6561 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
6562
6563         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
6564         (rs6000_split_compare_and_swapqhi): New.
6565         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
6566         (sync_compare_and_swapqhi_internal): New.
6567         * config/rs6000/rs6000-protos.h: Declare.