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* function.c (use_return_register): Make it static.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2
3         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
4         Remove.
5         * basic-block.h: Remove the extern for
6         rediscover_loops_after_threading.
7
8         * cfgloop.c (cancel_loop): Make it static.
9         * cfgloop.h: Remove the prototype for cancel_loop.
10
11         * flow.c (recompute_reg_usage): Make it static.
12         * rtl.h: Remove the prototype for recompute_reg_usage.
13
14         * function.c (use_return_register): Make it static.
15         * function.h: Remove the prototype.
16
17 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
18
19         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
20         Remove.
21         * recog.h: Remove the prototype for
22         validate_change_maybe_volatile.
23
24 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
25
26         * rtlanal.c (replace_reg): Remove.
27         * rtl.h: Remove the prototype for replace_reg.
28
29 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
30
31         * regclass.c (reg_scan_update): Remove.
32         (reg_scan_mark_refs): Remove the last argument.
33         * rtl.h: Remove the prototype for reg_scan_update.
34
35 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
36
37         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
38         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
39         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
40         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
41         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
42         loop-invariant.c, omp-low.c, opts.c, passes.c,
43         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
44         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
45         tree-ssa-structalias.c, tree-ssa-threadedge.c,
46         tree-ssa-threadupdate.c, tree-vect-patterns.c,
47         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
48         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
49
50 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
51
52         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
53         * dwarf2out.h: Remove the prototype for
54         dwarf2out_add_library_unit_info.
55
56 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
57
58         * tree.c (add_var_to_bind_expr): Remove.
59         * tree.h: Remove the prototype for add_var_to_bind_expr.
60
61 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
62
63         * regclass.c (n_non_fixed_regs): Remove.
64         (init_reg_sets_1, globalize_reg): Remove all uses of
65         n_non_fixed_regs.
66         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
67
68 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
69
70         * rtlanal.c (insns_safe_to_move_p): Remove.
71         * rtl.h: Remove the prototype for insns_safe_to_move_p.
72
73 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
74
75         * expmed.c (expand_mult_add): Remove.
76         * expr.h: Remove the prototype for expand_mult_add.
77
78 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
79
80         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
81         and REG_SAVED_VAL_EXP constants.
82         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
83         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
84         Handle regs stored by value.
85         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
86         (execute_cfa_program): Handle DW_CFA_val_offset,
87         DW_CFA_val_offset_sf and DW_CFA_val_expression.
88         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
89         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
90         (uw_install_context_1): Handle target regs stored by value.
91
92 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
93
94         * tree-sra.c (tree_sra): Return todoflags;
95         (generate_one_element): Set TODO_update_smt_usage if needed.
96         (pass_sra): Remove TODO_update_smt_usage.
97         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
98         parameter.
99         (tree_ssa_forward_propagate_single_use_vars): Return
100         TODO_update_smt_usage if we need to update SMT usage.
101         (pass_forwprop): Remove TODO_update_smt_usage.
102         
103 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
104
105         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
106         (correct_use_link): Remove reference to get_stmt_operands.
107         (update_stmt_operands): Likewise.
108         (get_modify_expr_operands): New function factored out of
109         parse_ssa_operands and get_expr_operands.
110         Try to create V_MUST_DEFs for LHS by default.
111         (get_expr_operands) <case MODIFY_EXPR>: Call
112         get_modify_expr_operands.
113         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
114         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
115         (parse_ssa_operands) <case MODIFY_EXPR>: Call
116         get_modify_expr_operands.
117
118 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
119
120         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
121         * tree-flow.h: Remove the prototype for
122         referenced_var_lookup_if_exists.
123
124 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
125
126         PR rtl-optimization/26345
127         PR target/19061
128         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
129
130 2006-03-03  Roger Sayle  <roger@eyesopen.com>
131
132         PR tree-optimization/26524
133         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
134         fold_convert to create a constant of the appropriate type.
135
136 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
137
138         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
139         SYMBOL_REF_IN_BLOCK_P.
140         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
141         of SYMBOL_FLAG_IN_BLOCK.
142         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
143         instead of SYMBOL_REF_IN_BLOCK_P.
144         * explow.c (use_anchored_address): Likewise.
145         * rtl.c (rtx_size): Likewise.
146         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
147         instead of SYMBOL_FLAG_IN_BLOCK.
148         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
149         SYMBOL_REF_IN_BLOCK_P.
150         (assemble_variable): Likewise.
151         (output_constant_def_contents): Likewise.
152         (output_constant_pool): Likewise.
153         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
154         instead of SYMBOL_FLAG_IN_BLOCK.
155         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
156         SYMBOL_REF_IN_BLOCK_P.
157         (SYMBOL_REF_BLOCK): Likewise.
158         (SYMBOL_REF_OFFSET): Likewise.
159         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
160         SYMBOL_REF_IN_BLOCK_P.
161         (SYMBOL_FLAG_IN_BLOCK): Replace with...
162         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
163         (SYMBOL_REF_IN_BLOCK_P): Replace with...
164         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
165
166 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
167
168         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
169
170 2006-03-02  Roger Sayle  <roger@eyesopen.com>
171
172         * simplify-rtx.c (simplify_unary_operation): When simplifying
173         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
174         that we perform the right shift in the appropriate mode, and
175         then extend or truncate the result to requested mode.
176
177 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
178
179         * gengtype.c (main): Handle double_int type.
180         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
181         * double-int.c: New file.
182         * double-int.h: New file.
183         * system.h: Include doubleint.h.
184         * Makefile.in (SYSTEM_H): Include double-int.h.
185         (double-int.o): Add.
186
187 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
188
189         PR bootstrap/26478
190         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
191         copying over it.
192
193 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
194
195         * tree-vrp.c (remove_range_assertions): Do not update statements
196         unnecessarily.
197
198 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
199
200         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
201         cleanup.
202         * gcse.c (rest_of_handle_gcse): Ditto.
203         * except.c (gate_handle_eh): Ditto.
204         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
205         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
206
207 2006-03-02  Eric Christopher  <echristo@apple.com>
208
209         * config/i386/i386.c (machopic_output_stub): Add indirection to
210         jump.
211
212 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
213
214         * loop.c: Removed.
215
216 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
217
218         Sun Niagara specific optimizations.
219         * config.gcc: Recognize niagara as target.
220         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
221         (TARGET_CPU_niagara): Define.
222         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
223         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
224         (CPP_CPU_SPEC): Handle -mcpu=niagara.
225         (ASM_CPU_SPEC): Likewise.
226         (PROCESSOR_NIAGARA): New enum entry.
227         (REGISTER_MOVE_COST): Handle Niagara.
228         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
229         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
230         (sparc_override_options): Recognize "niagara", set appropriate
231         default MASK_* values for it, and align functions to 32-bytes
232         by default just like ULTRASPARC/ULTRASPARC3.
233         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
234         (sparc64_initialize_trampoline): Likewise.
235         (sparc_use_sched_lookahead): Use zero for niagara.
236         (sparc_issue_rate): Use one for niagara.
237         * config/sparc/niagara.md: New file.
238         * config/sparc/sparc.md: Include it.
239         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
240         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
241         when default cpu is niagara.
242         (CPP_CPU_SPEC): Handle -mcpu=niagara.
243         (ASM_CPU_SPEC): Likewise.
244         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
245         when default cpu is niagara.
246         (ASM_CPU_SPEC): Handle -mcpu=niagara.
247         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
248         just like v9/ultrasparc/ultrasparc3.
249         * doc/invoke.texi: Add documentation for "niagara" and improve
250         existing documentation for ultrasparc variants.
251
252 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
253
254         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
255
256 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
257
258         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
259         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
260         and say that only one is needed.
261         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
262         * target.h (have_switchable_bss_sections): New hook.
263         * explow.c (use_anchored_address): Check that the symbol is in a block.
264         * varasm.c (tls_comm_section, comm_section, lcomm_section)
265         (bss_noswitch_section): New variables.
266         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
267         (get_noswitch_section): New function.
268         (get_block_for_section): Allow SECT to be null.
269         (unlikely_text_section_p): Use SECTION_STYLE.
270         (bss_initializer_p): New function.
271         (get_variable_section): Move earlier in file.  Take a new argument,
272         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
273         Return one of the new *_sections in such cases.
274         (get_block_for_decl): New function, extracting some logic from
275         use_blocks_for_decl_p.
276         (change_symbol_section): Remove in favor of...
277         (change_symbol_block): ...this new function.
278         (use_blocks_for_decl_p): Remove checks now performed by
279         get_block_for_decl.
280         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
281         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
282         (emit_local, emit_bss, emit_common): ...these new functions.
283         Return true if the alignment was honored.
284         (emit_tls_common): New function.
285         (asm_emit_uninitialised): Delete.
286         (assemble_variable_noswitch): New function, split out from...
287         (assemble_variable): ...here.  Don't make decisions about common
288         variables here.  Globalize all public decls that go into non-common
289         sections.  Check whether SYMBOL_REF_BLOCK is null.
290         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
291         (output_constant_pool): Likewise.
292         (init_varasm_once): Initialize the new section variables.
293         (have_global_bss_p): New function.
294         (categorize_decl_for_section): Use bss_initializer_p.
295         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
296         (place_block_symbol): Assert that the symbol must be in a block.
297         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
298         (TARGET_INITIALIZER): Include it.
299         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
300         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
301         (SECTION_MACH_DEP): Bump by two.
302         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
303         (unnamed_section): Mention SECTION_UNNAMED in comment.
304         (named_section): Likewise SECTION_NAMED.
305         (noswitch_section_callback): New type.
306         (noswitch_section): New structure.
307         (section): Add a noswitch_section alternative.
308         (SECTION_STYLE): New macro.
309         (tls_comm_section, comm_section, lcomm_section): Declare.
310         (bss_noswitch_section, have_global_bss_p): Declare.
311         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
312         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
313         Override.
314         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
315         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
316         Override.
317
318 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
319
320         * gcc/tree-vrp.c (execute_vrp): Return value.
321         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
322         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
323         * gcc/tree-complex.c (tree_lower_complex): Ditto.
324         (tree_lower_complex_O0): Ditto.
325         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
326         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
327         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
328         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
329         (execute_tail_calls): Ditto.
330         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
331         * gcc/tree.h (init_function_for_compilation): Ditto.
332         * gcc/ipa-cp.c (ipcp_driver): Ditto.
333         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
334         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
335         * gcc/final.c (compute_alignments): Ditto.
336         (rest_of_handle_final): Ditto.
337         (rest_of_handle_shorten_branches): Ditto.
338         (rest_of_clean_state): Ditto.
339         * gcc/omp-low.c (execute_expand_omp): Ditto.
340         (execute_lower_omp): Ditto.
341         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
342         * gcc/ipa-reference.c (static_execute): Ditto.
343         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
344         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
345         (rest_of_handle_machine_reorg): Ditto.
346         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
347         * gcc/flow.c (recompute_reg_usage): Ditto.
348         (rest_of_handle_remove_death_notes): Ditto.
349         (rest_of_handle_life): Ditto.
350         (rest_of_handle_flow2): Ditto.
351         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
352         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
353         (do_ssa_store_ccp): Ditto.
354         (execute_fold_all_builtins): Ditto.
355         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
356         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
357         * gcc/ipa-pure-const.c (static_execute): Ditto.
358         * gcc/cse.c (rest_of_handle_cse): Ditto.
359         (rest_of_handle_cse2): Ditto.
360         * gcc/web.c (rest_of_handle_web): Ditto.
361         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
362         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
363         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
364         * gcc/tree-nrv.c (tree_nrv): Ditto.
365         (execute_return_slot_opt): Ditto.
366         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
367         (create_structure_vars): Ditto.
368         * gcc/loop-init.c (rtl_loop_init): Ditto.
369         (rtl_loop_done): Ditto.
370         (rtl_move_loop_invariants): Ditto.
371         (rtl_unswitch): Ditto.
372         (rtl_unroll_and_peel_loops): Ditto.
373         (rtl_doloop): Ditto.
374         * gcc/gimple-low.c (lower_function_body): Ditto.
375         (mark_used_blocks): Ditto.
376         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
377         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
378         (cgraph_early_inlining): Ditto.
379         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
380         * gcc/jump.c (cleanup_barriers): Ditto.
381         (purge_line_number_notes): Ditto.
382         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
383         (rest_of_handle_if_after_reload): Ditto.
384         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
385         (tree_ssa_loop_im): Ditto.
386         (tree_ssa_loop_unswitch): Ditto.
387         (tree_vectorize): Ditto.
388         (tree_linear_transform): Ditto.
389         (tree_ssa_loop_ivcanon): Ditto.
390         (tree_ssa_empty_loop): Ditto.
391         (tree_ssa_loop_bounds): Ditto.
392         (tree_complete_unroll): Ditto.
393         (tree_ssa_loop_prefetch): Ditto.
394         (tree_ssa_loop_ivopts): Ditto.
395         (tree_ssa_loop_done): Ditto.
396         * gcc/predict.c (tree_estimate_probability): Ditto.
397         * gcc/recog.c (split_all_insns_noflow): Ditto.
398         (rest_of_handle_peephole2): Ditto.
399         (rest_of_handle_split_all_insns): Ditto.
400         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
401         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
402         (rest_of_handle_stack_adjustments): Ditto.
403         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
404         * gcc/function.c (instantiate_virtual_regs): Ditto.
405         (init_function_for_compilation): Ditto.
406         (rest_of_handle_check_leaf_regs): Ditto.
407         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
408         (rest_of_handle_gcse): Ditto.
409         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
410         * gcc/alias.c (rest_of_handle_cfg): Ditto.
411         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
412         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
413         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
414         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
415         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
416         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
417         * gcc/except.c (set_nothrow_function_flags): Ditto.
418         (convert_to_eh_region_ranges): Ditto.
419         (rest_of_handle_eh): Ditto.
420         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
421         (remove_unnecessary_notes): Ditto.
422         * gcc/except.h (set_nothrow_function_flags): Ditto.
423         (convert_to_eh_region_ranges): Ditto.
424         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
425         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
426         * gcc/tree-ssa-pre.c (do_pre): Ditto.
427         (execute_fre): Ditto.
428         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
429         (rest_of_handle_jump2): Ditto.
430         * gcc/tree-sra.c (tree_sra): Ditto.
431         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
432         (execute_mudflap_function_decls): Ditto.
433         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
434         (do_store_copy_prop): Ditto.
435         * gcc/ipa-prop.h (ipcp_driver): Ditto.
436         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
437         * gcc/tree-ssa-forwprop.c
438         (tree_ssa_forward_propagate_single_use_vars): Ditto.
439         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
440         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
441         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
442         (execute_late_warn_uninitialized): Ditto.
443         * gcc/rtl.h (cleanup_barriers): Ditto.
444         (split_all_insns_noflow): Ditto.
445         (purge_line_number_notes): Ditto.
446         (unshare_all_rtl): Ditto.
447         (remove_unnecessary_notes): Ditto.
448         (recompute_reg_usage): Ditto.
449         (variable_tracking_main): Ditto.
450         * gcc/integrate.c (emit_initial_value_sets): Ditto.
451         * gcc/integrate.h (emit_initial_value_sets): Ditto.
452         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
453         (execute_free_cfg_annotations): Ditto.
454         (execute_fixup_cfg): Ditto.
455         (execute_cleanup_cfg_pre_ipa): Ditto.
456         (execute_cleanup_cfg_post_optimizing): Ditto.
457         (execute_init_datastructures): Ditto.
458         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
459         * gcc/combine.c (rest_of_handle_combine): Ditto.
460         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
461         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
462         (rest_of_handle_reorder_blocks): Ditto.
463         (rest_of_handle_partition_blocks): Ditto.
464         * gcc/var-tracking.c (variable_tracking_main): Ditto.
465         * gcc/tree-profile.c (tree_profiling): Ditto.
466         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
467         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
468         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
469         (rest_of_handle_sched2): Ditto.
470         * gcc/basic-block.h (free_bb_insn): Ditto.
471         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
472         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
473         (remove_useless_stmts): Ditto.
474         (split_critical_edges): Ditto.
475         (execute_warn_function_return): Ditto.
476         (execute_warn_function_noreturn): Ditto.
477         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
478         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
479         * gcc/passes.c (execute_one_pass): Run additional
480         todos returned by execute function.
481         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
482         return a value.
483
484 2006-03-02  Richard Guenther  <rguenther@suse.de>
485
486         * tree-ssa-alias.c (find_used_portions): Consider taking
487         the address as making the variable not write-only.
488
489 2006-03-02  Nick Clifton  <nickc@redhat.com>
490
491         * config.gcc (default_use_cxa_atexit): Extend the description of
492         this configure variable.  Set its default value to "yes" for
493         Linux, NetBSD and ELF targets on the assumption that they will
494         use C libraries with the __cxa_atexit function.
495
496 2006-03-02  Ben Elliston  <bje@au.ibm.com>
497
498         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
499         parameter as unused to suppress a build warning.
500
501 2006-03-02  Ben Elliston  <bje@au.ibm.com>
502
503         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
504         config/dfp-bit.c.
505
506 2006-03-01  Roger Sayle  <roger@eyesopen.com>
507
508         PR other/26489
509         * gthr-posix.h (__gthrw2): Define to take three parameters, the
510         declared name, the weak reference name, and the typeof name.
511         (__gthrw): Avoid expanding the declared name suffix.
512         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
513
514 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
515
516         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
517         from DWARF 3.
518         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
519         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
520         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
521         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
522         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
523         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
524         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
525         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
526         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
527         DW_DS_leading_separate, DW_DS_trailing_separate): New.
528         (DW_END_default, DW_END_big, DW_END_little): New.
529         (DW_END_lo_user, DW_END_hi_user): Define.
530         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
531         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
532         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
533         DW_LANG_D): New.
534
535 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
536
537         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
538         Update all users.
539         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
540         Update all users.
541         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
542         Update all users.
543         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
544         Update all users.
545         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
546         to 'symbol_mem_tag'.
547         Update all users.
548         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
549         rename.
550
551 2006-03-01  Roger Sayle  <roger@eyesopen.com>
552
553         * builtins.c (fold_builtin_copysign): Delete unreachable code.
554
555 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
556
557         PR target/25761
558         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
559         MACHO_DYNAMIC_NO_PIC_P.
560         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
561
562 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
563
564         PR target/26389
565         * config/darwin-protos.h (darwin_asm_output_anchor):
566         Declare.
567         * config/darwin-sections.def (cstring_section):
568         Add SECTION_MERGE to the flags.
569         (literal4_section): Likewise.
570         (literal8_section): Likewise.
571         (objc_selector_refs_section): Likewise.
572         (objc_cls_refs_section): Likewise.
573         * config/darwin.c (darwin_asm_output_anchor): New
574         function.
575         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
576
577 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
578
579         Fix PR tree-optimization/26443
580         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
581         to todo and PROP_tmt_usage to properties_destroyed.
582         * tree-ssa-ccp.c (pass_ccp): Ditto.
583         (pass_store_ccp): Ditto.
584         * tree-ssa-dom.c (pass_dominator): Ditto.
585
586 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
587
588         * tree-ssa-operands.c: Cleanup whitespace.
589         (get_asm_expr_operands): Move before first invocation.
590         (get_indirect_ref_operands): Likewise.
591         (get_tmr_operands): Likewise.
592         (get_call_expr_operands): Likewise.
593         (append_def): Likewise.
594         (append_use): Likewise.
595         (append_v_may_def): Likewise.
596         (append_v_must_def): Likewise.
597         (add_call_clobber_ops): Likewise.
598         (add_call_read_ops): Likewise.
599         (add_stmt_operand): Likewise.
600         (add_virtual_operand): Likewise.
601         (build_ssa_operands): Likewise.
602
603 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
604
605         PR middle-end/26022
606         Revert:
607         PR middle-end/24437
608         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
609         with a call expr to ...
610         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
611
612 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
613
614         * tree-vrp.c (extract_range_from_assert): Remove special
615         handling for types with super-types.
616
617 2006-03-01  Ben Elliston  <bje@au.ibm.com>
618
619         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
620         and powerpc64-*-linux* configurations.
621         * config/t-dfprules: New file.
622
623         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
624         Compile dfp-bit.c from the source directory using -DWIDTH and
625         $DFP_CFLAGS to control the compilation of that file, rather than
626         generating width-specific versions in the build directory.
627         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
628         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
629
630 2006-02-28  Zack Weinberg  <zackw@panix.com>
631
632         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
633         continues to work.
634
635 2006-02-28  Eric Christopher  <echristo@apple.com>
636
637         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
638         Set up IN_LIBGCC definition of TARGET_64BIT.
639         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
640
641 2006-02-28  Roger Sayle  <roger@eyesopen.com>
642
643         PR middle-end/14752
644         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
645         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
646         cases via the construction of "expr != 0".
647
648 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
649
650         * alias.c (alias_invariant, alias_invariant_size): Remove.
651         (record_base_value): Remove.
652         (memrefs_conflict_p): Don't look at alias_invariant.
653         (end_alias_analysis): Don't free it.
654         * alias.h (record_base_value): Remove prototype.
655
656 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
657             Adam Nemet  <anemet@caviumnetworks.com>
658
659         * rtl.h (truncated_to_mode): Declare it.
660         (struct rtl_hooks): Add reg_truncated_to_mode hook.
661         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
662         (RTL_HOOKS_INITIALIZER): Include it.
663         * rtlhooks.c (reg_truncated_to_mode_general): New function.
664         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
665         reg_truncated_to_mode.
666         * rtlanal.c (truncated_to_mode): Define it.
667         * simplify-rtx.c (simplify_unary_operation_1): Use it.
668
669 2006-02-28  Jeff Law  <law@redhat.com>
670
671         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
672         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
673         the range allowed by TYPE_PRECISION.
674
675         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
676
677 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
678
679         PR tree-optimization/26419
680         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
681         values of n.
682
683 2006-02-27  Zack Weinberg  <zackw@panix.com>
684
685         * doc/md.texi: Fix typo in previous change.
686
687 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
688
689         * df.c: Remove.
690
691 2006-02-27  Zack Weinberg  <zackw@panix.com>
692
693         * rtl.def (define_constraint, define_register_constraint)
694         (define_memory_constraint, define_address_constraint): New MD forms.
695         * gensupport.c (process_rtx): Put define_constraint etc on the
696         predicate queue.
697         * genpreds.c (process_define_predicate): Adjust comment.  Validate
698         the name, and call validate_exp to validate the expression.
699         (mark_mode_tests, write_extract_subexp): Can assume correct input.
700         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
701         all callers changed.
702         (validate_exp, needs_variable, struct constraint_data)
703         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
704         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
705         (const_dbl_constraints, constraint_max_namelen)
706         (have_register_constraints, have_memory_constraints)
707         (have_address_constraints, have_address_constraints)
708         (have_extra_constraints, have_const_int_constraints)
709         (have_const_dbl_constraints, mangle, add_constraint)
710         (process_define_constraint, process_define_register_constraint)
711         (write_enum_constraint_num, write_lookup_constraint)
712         (write_insn_constraint_len, write_regclass_for_constraint)
713         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
714         (write_insn_extra_memory_constraint)
715         (write_insn_extra_address_constraint)
716         (write_satisfies_constraint_fns): New.
717         (write_tm_preds_h): If we have new-style constraint definitions,
718         prototype the functions generated from them, and define the
719         old constraint interface (still used by generic code) in terms of
720         those functions.
721         (write_insn_preds_c): If we have new-style constraint definitions,
722         generate all relevant functions from those definitions.
723         (main): Handle define_constraint etc.
724         * genoutput.c (struct constraint_data, indep_constraints)
725         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
726         (mdep_constraint_len): New data structures and functions, defined
727         #ifdef USE_MD_CONSTRAINTS.
728         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
729         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
730         use new logic to validate operand constraints against constraint
731         definitions.
732         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
733         defined.
734         * defaults.h: If none of the old-style constraint macros are
735         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
736         old-style macros; and poison REG_CLASS_FROM_LETTER,
737         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
738         EXTRA_CONSTRAINT.
739         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
740         * doc/md.texi: Document new constraint-definition mechanism and the
741         C interface it provides.  Remove references to old mechanism
742         elsewhere in the document.
743         (Machine Constraints): Use pathnames relative to gcc directory,
744         i.e. config/ARCH/FILE.  Change i386 section to refer to
745         config/i386/predicates.md; update that section to match docstrings.
746         * doc/tm.texi: Move all documentation of the old constraint-
747         definition macros to their own section, clearly mark as obsolete.
748
749         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
750         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
751         definitions.
752         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
753         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
754         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
755         constraint strings.
756         (splits and peepholes): Use satisfies_constraint_*.
757         * config/i386/i386.c (memory_address_length)
758         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
759
760 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
761
762         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
763         scalar operation to be put back into the loop.
764
765 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
766
767         PR other/26208
768         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
769         (extract_cie_info): Handle S flag in augmentation string.
770         (execute_cfa_program): If context->signal_frame, execute also
771         fs->pc == context->ra instructions.
772         (uw_frame_state_for): If context->signal_frame, don't subtract one
773         from context->ra to find FDE.
774         (uw_update_context_1): Set context->signal_frame to
775         fs->signal_frame.
776         (_Unwind_GetIPInfo): New function.
777         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
778         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
779         of _Unwind_GetIP.
780         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
781         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
782         * unwind-compat.c (_Unwind_GetIPInfo): New function.
783         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
784         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
785         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
786         * config/i386/linux-unwind.h (x86_fallback_frame_state,
787         x86_64_fallback_frame_state): Set fs->signal_frame.
788         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
789         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
790         (frob_update_context): Likewise.  Workaround missing S flag in
791         Linux 2.6.12 - 2.6.16 kernel vDSOs.
792         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
793         Remove the psw_addr + 1 hack.
794
795 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
796
797         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
798         with aggregates here.
799         (find_func_aliases): Remove code for &<aggregate> from here.
800
801 2006-02-26  Roger Sayle  <roger@eyesopen.com>
802
803         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
804         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
805         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
806         as (X & C) ne/eq 0.
807
808 2006-02-26  Roger Sayle  <roger@eyesopen.com>
809
810         PR middle-end/19983
811         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
812
813 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
814
815         * opts.c (decode_options): Do not handle flag_strength_reduce.
816         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
817         and OPT_fstrength_reduce.
818         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
819         flag_prefetch_loop_arrays for being nonzero.
820         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
821         no-ops.
822         (fprefetch-loop-arrays-rtl): Removed.
823         (flag_prefetch_loop_arrays): Do not specify the value.
824
825         * doc/passes.texi: Update documentation of loop optimizer
826         passes.
827         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
828         -frerun-loop-opt): Remove.
829
830 2006-02-26  Richard Guenther  <rguenther@suse.de>
831
832         PR tree-optimization/26421
833         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
834         in function calls that are ADDR_EXPRs as using the whole structure.
835
836 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
837
838         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
839         * tree-pass.h (pass_loop_optimize): Remove.
840         * passes.c (pass_loop_optimize): Never run it.
841         * toplev.c (backend_init): Don't call init_loop.
842         * opts.c (flag_loop_optimize_set): Remove.
843         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
844         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
845         the old RTL loop optimizer when profiling enabled.
846         * predict.c (tree_estimate_probability): Always strip builtin_expect.
847         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
848         pre-headers for the sake of the old RTL loop optimizer.
849         * Makefile.in: Remove all references to loop.o.
850
851         * doc/invoke.texi: Remove all references to -floop-optimize
852         and -frerun-loop-opt.
853
854 2006-02-26  Zack Weinberg  <zackw@panix.com>
855
856         * doc/md.texi (Machine Constraints): Refer to all files with paths
857         relative to gcc directory (i.e. config/CPU/file).  Add missing
858         @table @code ... @end table to M32C subsection.
859
860 2006-02-26  Roger Sayle  <roger@eyesopen.com>
861
862         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
863         (X & 1) == 0.
864         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
865
866 2006-02-26  Roger Sayle  <roger@eyesopen.com>
867             James A. Morrison  <phython@gcc.gnu.org>
868
869         PR middle-end/21137
870         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
871         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
872         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
873         signedness of the shift operation.
874
875 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
876
877         PR tree-optimization/26359
878         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
879
880 2006-02-25  Roger Sayle  <roger@eyesopen.com>
881
882         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
883         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
884         as X == 0, and some symmetry related transformations.
885         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
886
887 2006-02-25  Roger Sayle  <roger@eyesopen.com>
888
889         PR middle-end/23673
890         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
891         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
892         symmetry related transformations.  Fold (X^C1) == C2 as
893         X == (C1^C2).
894
895 2006-02-25  Juergen Weigert  <jw@suse.de>
896         Richard Guenther  <rguenther@suse.de>
897
898         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
899
900 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
901
902         * combine.c (gen_lowpart_or_truncate): Call
903         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
904
905 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
906
907         * doc/invoke.texi: Move -fopenmp description to "Options for
908         Code Generation".
909         Remove reference to -lgomp.
910
911 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
912
913         * doc/install.texi: Require GNU tar version 1.14.
914
915 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
916
917         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
918         * doc/invoke.texi (C++ Dialect Options): Document
919         -fno-use-cxa-get-exception-ptr.
920         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
921         * configure: Regenerate.
922         * c.opt (fuse-cxa-get-exception-ptr): New.
923         * c-opts.c (c_common_handle_option): Handle
924         OPT_fuse_cxa_get_exception_ptr.
925         * c-common.c (flag_use_cxa_atexit): Update documentation.
926         (flag_use_cxa_get_exception_ptr): New.
927         * c-common.h (flag_use_cxa_get_exception_ptr): New.
928         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
929         documentation.
930         (C_COMMON_OVERRIDE_OPTIONS): New.
931
932 2006-02-24  Roger Sayle  <roger@eyesopen.com>
933
934         PR middle-end/24952
935         * combine.c (try_combine): Explicitly check whether GET_CODE is
936         a SET or a CLOBBER, instead on checking that it isn't a USE.
937
938 2006-02-24  Roger Sayle  <roger@eyesopen.com>
939
940         * fold-const.c (fold_comparison): New subroutine of fold_binary
941         containing transformations common to both the equality and
942         ordering relational operators, factored out of fold_binary.
943         (fold_binary): Separate out the equality operators (EQ_EXPR
944         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
945         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
946         transformations common to both.
947         (fold_div_compare): Fix latent bugs in the previously unreachable
948         LT_EXPR and GE_EXPR cases.
949
950 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
951
952         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
953         decl libname for clog to __clog on AIX.
954
955         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
956
957 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
958
959         PR target/26453
960         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
961         output traceback table for thunks.  Localise rs6000_stack_info call.
962
963 2006-02-23  Roger Sayle  <roger@eyesopen.com>
964             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
965
966         * gthr-posix.h (__gthrw): Fix typo in comment.
967
968 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
969
970         * doc/cpp.texi (Character sets): Document that we do support
971         input files to be in any character set.
972
973 2006-02-23  Jeff Law  <law@redhat.com>
974
975         * tree.h (PHI_ARG_NONZERO): Remove.
976         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
977         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
978         node to the new node.
979
980         PR tree-optimization/26425
981         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
982         min/max, then assume its varying.
983
984 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
985
986         PR rtl-optimization/26316
987         * rtlanal.c (enum may_trap_p_flags): New.
988         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
989         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
990         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
991         (may_trap_after_code_motion_p): New function.
992         * loop-invariant.c (find_identical_invariants): Fix dump formating.
993         (find_invariant_insn): Use may_trap_after_code_motion_p.
994         * rtl.h (may_trap_after_code_motion_p): Declare.
995
996 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
997
998         * emit-rtl.c (immed_double_const): Cleanup.
999
1000 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1001
1002         Fix PR tree-optimization/26376
1003         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1004         remove assert.
1005
1006 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1007
1008         PR middle-end/26412
1009         * gimplify.c (omp_add_variable): Guard variable size decl test with
1010         DECL_SIZE (decl) check.
1011
1012 2006-02-23  Richard Guenther  <rguenther@suse.de>
1013
1014         PR middle-end/26439
1015         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1016         like aggregate types.
1017
1018 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1019
1020         * configure.ac: Add --with{,out}-long-double-128 configure option.
1021         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1022         * configure: Rebuilt.
1023         * config.in: Rebuilt.
1024         * doc/install.texi (Options specification): Document
1025         --with-long-double-128.
1026
1027         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1028         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1029         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1030         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1031
1032 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1033
1034         * config/s390/s390.c (override_options): Handle
1035         TARGET_DEFAULT_LONG_DOUBLE_128.
1036
1037         * config/alpha/alpha.c (override_options): Handle
1038         TARGET_DEFAULT_LONG_DOUBLE_128.
1039
1040         * config/sparc/sparc.c (sparc_override_options): Handle
1041         TARGET_DEFAULT_LONG_DOUBLE_128.
1042
1043 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1044
1045         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1046         (real-install-headers-tar, real-install-headers-cpio)
1047         (real-install-headers-cp): New targets.
1048
1049 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1050
1051         * tree.h (variable_section): Delete.
1052         * varasm.c (variable_section): Delete.
1053
1054 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1055
1056         * install.texi: Add notes on install.texi2html.
1057         (Building in parallel): Do not use footnotes.
1058
1059 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1060
1061         PR libgomp/26234
1062         * doc/install.texi (Configuration): Document --disable-libgomp.
1063
1064 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1065
1066         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1067
1068 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1069
1070         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1071         (vec_extractv2df_0_sse): New.
1072
1073 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1074
1075         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1076         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1077         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1078         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1079         to the result of the expression.
1080         (def_cfa_1): Adjust.
1081         (frame_pointer_cfa_offset): Rename to...
1082         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1083         (convert_cfa_to_loc_list): Rename to...
1084         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1085         Pass it on to build_cfa_loc.
1086         (compute_frame_pointer_to_cfa_displacement): Rename to...
1087         (compute_frame_pointer_to_fb_displacement): ... this.  New
1088         offset parameter.  Use it in computation.
1089         (gen_subprogram_die): Compute cfa_fb_offset with the new
1090         macro, and use it to compute the fb loc list and the
1091         displacement.
1092
1093 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1094
1095         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1096         replaced with register_operand.
1097         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1098         non-DREG is expensive.
1099         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1100         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1101         involving memory.
1102
1103 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1104
1105         * doc/install.texi2html: Use set -e.
1106
1107 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1108
1109         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1110         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1111         * doc/invoke.texi (-fshared-data): Delete.
1112         * common.opt (fshared-data): Delete.
1113         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1114         (assemble_static_space): Remove #if 0 code.
1115         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1116         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1117         * config/cris/cris.h: Remove FIXME.
1118
1119 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1120
1121         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1122         hooks.
1123
1124 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1125
1126         PR middle-end/26379
1127         * combine.c (simplify_shift_const_1): Disable nested shifts
1128         optimization for vector shifts.
1129
1130 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1131
1132         PR tree-optimization/26361
1133         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1134         of unsigned integer types.
1135
1136 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1137
1138         * tree-chrec.c (eq_evolutions_p): New.
1139         * tree-chrec.h (eq_evolutions_p): Declared.
1140         * tree-data-ref.c: Fix formatting.
1141         (datadep_stats, dependence_stats): New.
1142         (gcd): Moved...
1143         (print_direction_vector): New.
1144         (dump_data_dependence_relation): Use print_direction_vector.
1145         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1146         (compute_subscript_distance): Static.
1147         (initialize_data_dependence_relation): Static.  Get the number
1148         of loops surrounding the references from the callers, and initialize
1149         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1150         base_object_differ_p analyzers.
1151         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1152         compute_overlap_steps_for_affine_1_2,
1153         analyze_subscript_affine_affine): Count the classified dependences.
1154         Print a message when a test failed.
1155         (can_use_analyze_subscript_affine_affine): New.
1156         (analyze_siv_subscript): Compute the data dependences on symbolic
1157         scevs that verify can_use_analyze_subscript_affine_affine.
1158         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1159         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1160         Handle symbolic scevs.
1161         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1162         analyzed.
1163         (subscript_dependence_tester): Moved...
1164         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1165         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1166         DDR_SIZE_VECT instead of getting it in parameter.
1167         (subscript_dependence_tester): ... here.  Take as a parameter
1168         loop_nest_depth.  Call build_classic_dist_vector and
1169         build_classic_dir_vector.
1170         (compute_affine_dependence): Update subscript_dependence_tester
1171         parameters.  Update datadep_stats counters.  Call
1172         compute_subscript_distance.
1173         (compute_self_dependence): Save the dist and dir vectors.  Call
1174         compute_subscript_distance.
1175         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1176         (compute_all_dependences): Reorder parameters as they were before
1177         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1178         compute_subscript_distance.  Update the use of
1179         compute_affine_dependence and initialize_data_dependence_relation.
1180         (find_data_references_in_loop): Handle COMPONENT_REF.
1181         (compute_data_dependences_for_loop): Initialize dependence_stats.
1182         Don't call build_classic_dist_vector and build_classic_dir_vector.
1183         Update the parameters of initialize_data_dependence_relation and
1184         compute_all_dependences.  Print the statistics from datadep_stats.
1185         (analyze_all_data_dependences): Static.  Not used until the pass for
1186         checking the data dependences is contributed.
1187         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1188         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1189         (initialize_data_dependence_relation, compute_affine_dependence,
1190         analyze_all_data_dependences, compute_subscript_distance): Removed.
1191         (print_direction_vector): New.
1192         * lambda.h (gcd): ... here.
1193         (lambda_vector_gcd): Moved here from gcd_vector.
1194         * lambda-code.c (gcd, gcd_vector): Removed.
1195         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1196         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1197
1198 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1199
1200         * ipa-type-escape.c: Tidy some comments and white space.
1201         * tree-ssa-operands.c: Likewise.
1202
1203 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1204
1205         PR tree-opt/25879
1206         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1207         (dump_decl_name): Do not walk the decl tree chains.
1208         * tree-pass.h (TDF_CHAIN): Remove.
1209
1210 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1211
1212         * Makefile.in (C): Remove
1213         (PROTO): Remove
1214         (.PHONY): Remove C and PROTO
1215
1216 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1217
1218         PR middle-end/26236
1219         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1220         deprecated CHAR_TYPE tree code.
1221
1222 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1223
1224         * configure.ac (target_list): Add install-info, dvi, html.
1225         * configure: Regenerate.
1226
1227         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1228         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1229         treelang/Make-lang.in: Do not use double-colon rules.
1230
1231 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1232
1233         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1234         (TMT_USED_ALONE): New macro.
1235         * tree-pass.h (PROP_tmt_usage): New property.
1236         (TODO_update_tmt_usage): New todo.
1237         * tree-ssa-alias.c (updating_used_alone): New variable.
1238         (recalculate_used_alone): New function.
1239         (compute_may_aliases): Set updating_used_alone, call
1240         recalculate_used_alone.
1241         * tree-sra.c (pass_sra): Note that this pass destroys
1242         PROP_tmt_usage, and add TODO_update_tmt_usage.
1243         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1244         * tree-flow.h (updating_used_alone): Prototype.
1245         (recalculate_used_alone): Ditto.
1246         * passes.c (execute_todo): Add code to set updating_used_alone,
1247         and call recalculate.
1248         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1249         for clobber if used alone, and add assert to verify used_alone
1250         status.
1251
1252 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1253
1254         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1255         for non tls symbols added.
1256         (legitimize_address): Do nothing for PLUS expressions if one of the
1257         addends is a tls symbol reference.
1258
1259 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1260
1261         PR bootstrap/25476
1262
1263         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1264
1265         * Makefile.in (BOOTSTRAPPING): New.
1266         (quickstrap): New definition if BOOTSTRAPPING=yes.
1267
1268         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1269         * configure.ac: Substitute all_selected_languages with the languages
1270         that were configured.  For all the other variables except
1271         lang_specs_files, include all the languages in the tree.
1272         * configure: Regenerate.
1273
1274         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1275         if there is one.  Run the commands to run fixincludes in the same
1276         subshell.
1277
1278         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1279         * doc/install.texi: Document exact conventions for searching target tools.
1280         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1281         something more about building an Ada cross-compiler.  Don't list GNU Make
1282         requirements which affect all platforms.
1283
1284 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1285
1286         PR middle-end/19543
1287         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1288         only equivalent if the have both the same mode and precision.
1289
1290 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1291
1292         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1293
1294 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1295             Steven Bosscher  <stevenb.gcc@gmail.com>
1296
1297         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1298         constant pool references to identify stack mode constants.
1299         * rtlanal.c (constant_pool_constant_p): New predicate to check
1300         whether operand is a floating point constant in the pool.
1301         * rtl.h (constant_pool_constant_p): Prototype here.
1302         * loop.c (scan_loop): Avoid hoisting constants from the constant
1303         pool on STACK_REGS targets.
1304         (load_mems): Likewise.
1305         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1306         loads into x87 registers expensive in terms of register pressure.
1307
1308 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1309
1310         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1311         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1312
1313 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1314
1315         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1316         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1317
1318 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1319
1320         * doc/invoke.texi: Document -fipa-pta.
1321         * common.opt: Add ipa-pta option.
1322         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1323         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1324         (do_ds_constraint): Ditto.
1325         (get_constraint_for): Only add to referenced_vars if
1326         referenced_vars exists.
1327         (insert_into_field_list): Rewrite to do this unsorted.
1328         (insert_into_field_list_sorted): Rename old insert_into_field_list
1329         to this.
1330         (create_function_info_for): Use insert_into_field_list_sorted.
1331         (create_variable_info_for): Rewrite so it uses unsorted version,
1332         since the field list is sorted.
1333         (intra_create_variable_infos): Only add to referenced_vars if
1334         referenced_vars exists.
1335         (ipa_pta_execute): Init heapvars, and delete when done.
1336         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1337
1338 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1339
1340         * doc/install.texi: Add missing `@samp'.
1341
1342 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1343
1344         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1345         Use the arguments.
1346
1347 2006-02-18  Mark Wielaard  <mark@klomp.org>
1348
1349         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1350         who added new 4.1 features, bug fixes and integration support.
1351
1352 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1353
1354         PR target/26350
1355         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1356         MEM for ABI_V4 pic.
1357
1358 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1359
1360         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1361         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1362         (copy_insn_1): Likewise.  Don't copy each field individually.
1363         Reindent.
1364         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1365         of RTX_SIZE.
1366         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1367         * rtl.c (rtx_size): Rename variable to...
1368         (rtx_code_size): ...this.
1369         (rtx_size): New function.
1370         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1371         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1372         Reindent.
1373         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1374         * rtl.h (rtx_code_size): New variable.
1375         (rtx_size): Change from a variable to a function.
1376         (RTX_SIZE): Rename to...
1377         (RTX_CODE_SIZE): ...this.
1378
1379         PR target/9703
1380         PR tree-optimization/17106
1381         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1382         (Anchored Addresses): New section.
1383         * doc/invoke.texi (-fsection-anchors): Document.
1384         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1385         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1386         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1387         * hooks.c (hook_bool_mode_rtx_false): New function.
1388         * hooks.h (hook_bool_mode_rtx_false): Declare.
1389         * gengtype.c (create_optional_field): New function.
1390         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1391         SYMBOL_REF_IN_BLOCK_P is true.
1392         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1393         (min_anchor_offset, max_anchor_offset): Likewise.
1394         (use_anchors_for_symbol_p): New hook.
1395         * toplev.c (compile_file): Call output_object_blocks.
1396         (target_supports_section_anchors_p): New function.
1397         (process_options): Check that -fsection-anchors is only used on
1398         targets that support it and when -funit-at-a-time is in effect.
1399         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1400         if the decl doesn't have one.
1401         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1402         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1403         of force_const_mem through use_anchored_address.
1404         (expand_expr_constant): New function.
1405         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1406         calling expand_expr for INDIRECT_REF.
1407         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1408         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1409         * expr.h (use_anchored_address): Declare.
1410         * loop-unroll.c: Don't declare rtx vectors here.
1411         * explow.c: Include output.h.
1412         (validize_mem): Call use_anchored_address.
1413         (use_anchored_address): New function.
1414         * common.opt (-fsection-anchors): New switch.
1415         * varasm.c (object_block_htab, anchor_labelno): New variables.
1416         (hash_section, object_block_entry_eq, object_block_entry_hash)
1417         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1418         (use_blocks_for_decl_p, change_symbol_section): New functions.
1419         (get_variable_section): New function, split out from assemble_variable.
1420         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1421         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1422         symbol has already been created.
1423         (assemble_variable_contents): New function, split out from...
1424         (assemble_variable): ...here.  Don't output any code for
1425         block symbols; just pass them to place_block_symbol.
1426         Use get_variable_section and assemble_variable_contents.
1427         (get_constant_alignment, get_constant_section, get_constant_size): New
1428         functions, split from output_constant_def_contents.
1429         (build_constant_desc): Create a block symbol if use_object_blocks_p
1430         says so.  Or into SYMBOL_REF_FLAGS.
1431         (assemble_constant_contents): New function, split from...
1432         (output_constant_def_contents): ...here.  Don't output any code
1433         for block symbols; just pass them to place_section_symbol.
1434         Use get_constant_section and get_constant_alignment.
1435         (force_const_mem): Create a block symbol if use_object_blocks_p and
1436         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1437         (output_constant_pool_1): Add an explicit alignment argument.
1438         Don't switch sections here.
1439         (output_constant_pool): Adjust call to output_constant_pool_1.
1440         Switch sections here instead.  Don't output anything for block symbols;
1441         just pass them to place_block_symbol.
1442         (init_varasm_once): Initialize object_block_htab.
1443         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1444         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1445         (place_block_symbol, get_section_anchor, output_object_block)
1446         (output_object_block_htab, output_object_blocks): New functions.
1447         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1448         (TARGET_ASM_OUT): Include it.
1449         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1450         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1451         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1452         (TARGET_INITIALIZER): Include them.
1453         * rtl.c (rtl_check_failed_block_symbol): New function.
1454         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1455         (block_symbol, object_block): New structures.
1456         (rtx_def): Add a block_symbol field to the union.
1457         (BLOCK_SYMBOL_CHECK): New macro.
1458         (rtl_check_failed_block_symbol): Declare.
1459         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1460         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1461         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1462         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1463         * output.h (output_section_symbols): Declare.
1464         (object_block): Name structure.
1465         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1466         (default_use_anchors_for_symbol_p): Declare.
1467         * Makefile.in (RTL_BASE_H): Add vec.h.
1468         (explow.o): Depend on output.h.
1469         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1470         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1471         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1472         (rs6000_use_blocks_for_constant_p): New function.
1473
1474 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1475
1476         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1477
1478 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1479
1480         PR tree-opt/25680
1481         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1482         IMAGPART_EXPR.
1483
1484 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1485
1486         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1487         is_aliased.
1488         Update all users.
1489
1490 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1491
1492         PR middle-end/26334
1493         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1494         instead of DECL_REGISTER.
1495
1496 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1497
1498         PR ada/13408
1499         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1500
1501 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1502
1503         PR target/24837
1504         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1505         * opth-gen.awk: Handle Var and InverseMask together.
1506         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1507         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1508         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1509         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1510         used together.
1511         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1512         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1513         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1514         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1515         LINUX_DYNAMIC_LINKER): Define.
1516         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1517         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1518         TARGET_GLIBC.
1519         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1520         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1521         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1522         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1523         (TARGET_C99_FUNCTIONS): Don't define.
1524         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1525         GLIBC_DYNAMIC_LINKER.
1526         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1527         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1528         GLIBC_DYNAMIC_LINKER64): Define.
1529         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1530         LINUX_DYNAMIC_LINKER64.
1531         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1532         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1533         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1534         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1535         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1536         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1537         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1538         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1539         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1540         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1541         and LINUX_DYNAMIC_LINKER32.
1542         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1543         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1544         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1545         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1546         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1547         TARGET_GLIBC.
1548         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1549         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1550         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1551         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1552         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1553         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1554         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1555         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1556         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1557         LINUX_DYNAMIC_LINKER): Define.
1558         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1559         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1560         GLIBC_DYNAMIC_LINKER64): Define.
1561         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1562         LINUX_DYNAMIC_LINKER64.
1563         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1564         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1565         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1566         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1567         LINUX_DYNAMIC_LINKER): Define.
1568         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1569         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1570         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1571         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1572         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1573         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1574         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1575         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1576         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1577         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1578         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1579         * doc/invoke.texi (-muclibc): Remove caveat about supported
1580         targets.
1581
1582 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1583
1584         * doc/cpp.texi (__TIMESTAMP__): Document.
1585
1586 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1587
1588         PR middle-end/25600
1589         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1590         C is one less than the width of X (and related transformations).
1591         * simplify-rtx.c (simplify_unary_operation_1): Transform
1592         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1593         depending on STORE_FLAG_VALUE, were C is one less then the
1594         width of X.
1595
1596 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1597
1598         Fix PR tree-optimization/26341
1599         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1600         about NAME_MEMORY_TAG's.
1601
1602 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1603
1604         PR target/26255
1605         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1606         with hardware float support, and software float support.  Add fcpy
1607         alternative to hardware patterns.  Add alternatives to copy between
1608         general and floating-point registers to the 32-bit pattern.
1609         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1610         secondary reload to load a QI or HI mode constant into a floating
1611         point register.
1612         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1613         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1614
1615 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1616
1617         PR target/26272
1618         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1619         pc to the pattern.
1620         (load_macho_picbase_di): Likewise.
1621
1622 2006-02-16  Jeff Law  <law@redhat.com>
1623
1624         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1625         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1626         (ssa_name_nonzero_p): Likewise.
1627         (get_value_range): Return NULL if VRP is not running.
1628         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1629         VRP routines do not discover a range.
1630         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1631         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1632         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1633         (tree_expr_nonnegative_p): Similarly.
1634         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1635         (restore_nonzero_vars_to_original_value): Remove.
1636         (unsafe_associative_fp_binop): Remove.
1637         (tree_ssa_dominator_optimize): Remove initialization and
1638         finalization of nonzero_vars and nonzero_vars_stack.
1639         (dom_opt_initialize_block): No longer push marker on
1640         nonzero_vars_stack.
1641         (dom_opt_finalize_block): No longer call
1642         restore_nonzero_vars_to_original_value.
1643         (record_equivalences_from_phis): No longer look for
1644         nonzero PHI arguments.
1645         (cprop_into_successor_phis): No longer propagate nonzero
1646         property into PHI arguments.  Lose unused argument.  Caller
1647         updated.
1648         (record_equivalences_from_stmt): No longer record nonzero
1649         values for SSA_NAMEs.
1650         (lookup_avail_expr): No longer use nonzero_vars.
1651
1652         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1653         for sizetype when sizetype is unsigned.
1654
1655 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1656
1657         PR rtl-optimization/25603
1658         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1659         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1660         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1661         with new meaning of SETS.
1662
1663 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1664
1665         PR target/20353
1666         PR target/24578
1667         PR target/24837
1668         * config/linux.opt: New file.
1669         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1670         LINUX_DYNAMIC_LINKER): Define.
1671         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1672         * config.gcc (*-*-linux*): Define extra_options.
1673         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1674         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1675         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1676         GLIBC_DYNAMIC_LINKER.
1677         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1678         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1679         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1680         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1681         * doc/invoke.texi (GNU/Linux Options): New section.
1682
1683 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1684
1685         * config/sparc/sparc.md (setjmp): Rewrite.
1686         (setjmp_32): Delete.
1687         (setjmp_64): Likewise.
1688
1689 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1690
1691         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1692          previous change.
1693
1694 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1695
1696         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1697         read-write uses.
1698
1699 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1700
1701         PR rtl-optimization/26296
1702         * Makefile.in (loop-invariant.c): Add except.h dependency.
1703         * loop-invariant.c: Include except.h.
1704         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1705
1706 2005-02-16  Paul Brook  <paul@codesourcery.com>
1707
1708         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1709         for reloads.
1710
1711 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1712
1713         PR rtl-optimization/25636
1714         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1715         when deciding whether an insn is an initializing insn.
1716
1717 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1718
1719         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1720         (tree_code_size): Ditto.
1721         * tree.h (struct tree_memory_tag): Remove parent_var.
1722         (struct tree_struct_field_tag): New.
1723         (SFT_OFFSET): New.
1724         (SFT_SIZE): New.
1725         (union tree_node): Add sft member.
1726         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1727         specially here.
1728         (create_sft): Add size and offset argument, set SFT_OFFSET and
1729         SFT_SIZE.
1730         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1731         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1732         * tree-flow-inline.h (get_subvar_at): Update for
1733         SFT_OFFSET/SFT_SIZE.
1734         (var_can_have_subvars): Ditto.
1735         (overlap_subvar): Ditto.
1736         * print-tree.c (print_node): Print out interesting things for
1737         SFT's.
1738         * tree-flow.h (struct subvar): Remove offset and size members.
1739         * tree-ssa-operands.c (get_expr_operands): Update for
1740         get_indirect_ref_operands changes.
1741         (get_indirect_ref_operands): Call add_virtual_operand instead of
1742         add_stmt_operand.  Only recurse on base var if requested.
1743         (access_can_touch_variable): New function.
1744         (add_stmt_operand): Split virtual operand handling into ...
1745         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1746         arguments.  Prune alias sets.
1747         (add_call_clobber_ops): Call add_virtual_operand.
1748
1749 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1750
1751         PR middle-end/26300
1752         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1753
1754         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1755         than TREE_CODE as index into omp_clause_num_ops array.
1756
1757 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1758
1759         PR rtl-optimization/26184
1760         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1761         uses_of_defs.
1762         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1763         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1764         must_precede, must_follow and tobe_scheduled.
1765
1766         PR other/26147
1767         * opts.c (common_handle_option): Free new_option pointer.
1768         * df-core.c (df_analyze): Free postorder pointer.
1769
1770 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1771
1772         * Makefile.in: Fix the examples about the use of stamps
1773
1774 2006-02-15  Michael Matz  <matz@suse.de>
1775
1776         PR middle-end/22275
1777
1778         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1779         influenced by maximum_field_alignment or DECL_PACKED.
1780         (update_alignment_for_field): Ditto.
1781         (place_field): Ditto.
1782         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1783         this behaviour.
1784
1785 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1786
1787         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1788         (debug_flow_info): Pass it.
1789         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1790         * bb-reorder.c (reorder_basic_blocks): Likewise.
1791         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1792         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1793         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1794         * gcse.c (gcse_main, bypass_jumps): Likewise.
1795         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1796         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1797         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1798         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1799         * rtl.h (dump_flow_info): Adjust prototype.
1800         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1801         * var-tracking.c (variable_tracking_main): Likewise.
1802         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1803         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1804         options.
1805
1806 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1807
1808         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1809         construction.
1810
1811 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1812
1813         PR tree-optimization/26209
1814         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1815         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1816         eh edges.
1817         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1818
1819 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1820
1821         PR middle-end/23670
1822         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1823         (X,Y) and the corresponding symmetry related transformations.
1824         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1825         (X,Y) and its symmetry related transformations.
1826
1827 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1828
1829         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1830         and GEU.
1831
1832 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1833
1834         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1835
1836 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1837
1838         PR bootstrap/26053
1839         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1840         support COMDAT group.
1841         * configure: Regenerate.
1842
1843 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1844
1845         PR middle-end/26279
1846         PR middle-end/26280
1847         PR middle-end/26283
1848         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1849
1850 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1851
1852         Fix PR tree-optimization/26260
1853
1854         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1855         param.
1856         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1857         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1858         * tree-ssa-structalias.c (create_variable_info_for): Use
1859         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1860
1861 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1862
1863         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1864         Document.
1865         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1866         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1867         of the ending condition.
1868         * tree-ssa-loop-manip.c: Include params.h.
1869         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1870         tree_unroll_loop): New functions.
1871         * tree-pass.h (pass_loop_prefetch): Declare.
1872         * loop.c (rest_of_handle_loop_optimize): Test for
1873         -fprefetch-loop-arrays-rtl.
1874         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1875         * timevar.def (TV_TREE_PREFETCH): New timevar.
1876         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1877         pass_loop_prefetch): New.
1878         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1879         (cleanup_tree_cfg_loop): Call scev_reset.
1880         * common.opt (fprefetch-loop-arrays-rtl): Add.
1881         * tree-ssa-loop-prefetch.c: New file.
1882         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1883         (new_temp_expr_table): Initialize expr_vars.
1884         (free_temp_expr_table): Cleanup expr_vars.
1885         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1886         expressions from being merged into one.
1887         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1888         (struct tree_niter_desc): Add control, bound and cmp fields.
1889         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1890         Declare.
1891         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1892         (tree-cfgcleanup.o): Add SCEV_H dependency.
1893         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1894         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1895
1896 2006-02-14  Richard Guenther  <rguenther@suse.de>
1897
1898         PR tree-optimization/26258
1899         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1900         in PHI argument processing.
1901
1902 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1903
1904         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1905         new expression in the requested machine mode.
1906
1907 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1908
1909         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1910         directly, instead let do_compare_rtx_and_jump handle this for us.
1911         * expr.c (expand_expr_real_1): Likewise.
1912         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1913         before do_jump_by_parts_greater.
1914         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1915         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1916
1917 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1918
1919         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1920
1921 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1922
1923         PR rtl-optimization/26235
1924         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1925         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1926         format.
1927
1928 2006-02-13  Jeff Law  <law@redhat.com>
1929
1930         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1931         TRUTH_XOR_EPR.
1932
1933 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1934
1935         PR middle-end/26092
1936         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1937         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1938         first to verify it is still a builtin.
1939
1940 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1941
1942         * dwarf2out.c (base_type_die): Don't add AT_name here.
1943         (subrange_type_die): Don't add AT_name here.
1944         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1945
1946 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1947
1948         PR rtl-optimization/26247
1949         PR rtl-optimization/26248
1950         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
1951
1952 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
1953
1954         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
1955         * config/fixtfdi.c: Likewise.
1956         * config/fixunstfdi.c: Likewise.
1957         * config/floatditf.c: Likewise.
1958
1959 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1960
1961         PR middle-end/24427
1962         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
1963         into (X,C2) if C1 is a subset of the bits of C2.  Transform
1964         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
1965         (X&(C1&~C2))|C2.
1966         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1967
1968 2006-02-13  Josh Conner  <jconner@apple.com>
1969
1970         PR target/25376
1971         * varasm.c (function_section): Check for section name before
1972         calling select_section on targets that define
1973         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1974         unlikely_text_section instead of hot_function_section if
1975         first_function_block_is_cold.
1976
1977 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1978
1979         PR middle-end/25335
1980         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1981
1982 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1983
1984         PR rtl-optimization/26222
1985         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1986         after tree->rtl expansion.
1987         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1988         before passing it to emit_move_insn.
1989
1990 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1991
1992         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1993         default.
1994         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1995         Clarify documentation.
1996         * c-common.h (warn_write_strings): Remove.
1997         * c-common.c (warn_write_strings): Likewise.
1998         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1999         default for C++.
2000
2001 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2002
2003         PR middle-end/25724
2004         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2005         (do_jump_parts_zero_rtx): New function renamed from
2006         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2007         (do_jump_parts_equality_rtx): New function split out from
2008         do_jump_parts_equality.  Old implementation renamed as above.
2009         Call do_jump_parts_zero_rtx if either operand is zero.
2010         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2011         do all of the heavy lifting.
2012         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2013         calling either do_jump_by_parts_greater_rtx or
2014         do_jump_by_parts_equality_rtx.
2015         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2016         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2017         moved to do_compare_rtx_and_jump, call it directly.
2018         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2019         mode argument.  Call do_compare_rtx_and_jump.
2020         (emit_case_nodes): Update calls to do_jump_if_equal.
2021
2022 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2023
2024         PR rtl-optimization/26225
2025         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2026
2027 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2028
2029         PR rtl-optimization/26232
2030         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2031
2032 2006-02-11  Jason Merrill  <jason@redhat.com>
2033
2034         PR tree-opt/24365
2035         * tree-inline.c (declare_return_variable): Just don't use the
2036         modify target if it's a gimple complex reg and the return slot
2037         isn't.
2038
2039 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2040
2041         * doc/contrib.texi: Update my entry.
2042
2043 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2044
2045         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2046
2047 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2048
2049         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2050         expensive.
2051
2052 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2053
2054         * doc/invoke.texi (-floop-optimize2): Removed.
2055         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2056         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2057         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2058         * common.opt (floop-optimize2): Removed.
2059         (fmove-loop-invariants): Enabled by default.
2060
2061 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2062
2063         * tree-if-conv.c (combine_blocks): Free the result of
2064         get_loop_exit_edges.
2065
2066 2006-02-10  Jeff Law  <law@redhat.com>
2067
2068         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2069
2070         PR tree-optimization/26213
2071         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2072         loop trying to follow SSA_NAME_VALUE chains.
2073
2074 2006-02-10  Richard Guenther  <rguenther@suse.de>
2075
2076         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2077         deal with structures that end in implicitly variable sized arrays.
2078
2079 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2080
2081         PR rtl-optimization/24762
2082         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2083         eh edges.
2084
2085 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2086
2087         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2088         (struct ivopts_data): Add regs_used field.
2089         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2090         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2091         instead of loop_data->regs_used;
2092         (free_loop_data): Do not free aux fields for loops.
2093         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2094         and tree_ssa_iv_optimize_finalize.
2095
2096 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2097
2098         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2099
2100 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2101
2102         PR target/26141
2103         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2104         computing the effective result type.
2105
2106 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2107
2108         PR inline-asm/16194
2109         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2110         (tree_overlaps_hard_reg_set): Declare.
2111         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2112         type and signature to match function type expected by walk_tree.
2113         (tree_overlaps_hard_reg_set): New function.
2114         (decl_conflicts_with_clobbers_p): Rename to:
2115         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2116         Use tree_overlaps_hard_reg_set.  Changed caller.
2117         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2118         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2119         * cris.c (cris_md_asm_clobbers): Likewise.
2120
2121 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2122
2123         * reload1.c (emit_input_reload_insns): Delete code that tries to
2124         inherit using find_equiv_reg.
2125
2126 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2127
2128         * c-common.h (flag_const_strings): Don't declare.
2129         * c-common.c (flag_const_strings): Remove.
2130         * c.opt (fconst_strings): Remove.
2131         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2132         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2133         (c_common_init_options): Don't set flag_const_strings.
2134         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2135
2136 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2137
2138         * arm.md (tlobits_cbranch): New pattern.
2139         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2140         testing a single bit.
2141
2142 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2143
2144         PR tree-opt/26179
2145         * tree-ssa-pre.c (create_component_ref_by_pieces):
2146         Handle RETURN_DECL like VAR_DECL.
2147
2148 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2149
2150         PR middle-end/26134
2151         * fold-const.c (fold_indirect_ref_1): Fold
2152         "*(foo *)&complexfoo" to "__real__ complexfoo"
2153         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2154
2155 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2156
2157         * tree-flow-inline.h (var_can_have_subvars):
2158         Volatile variables should not have subvariables.
2159
2160 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2161
2162         PR 26180
2163         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2164         multiplying unsigned values.
2165         Tidy comments.
2166
2167 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2168
2169         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2170
2171 2006-02-08  Jason Merrill  <jason@redhat.com>
2172
2173         PR c++/25979
2174         * tree.def: Elaborate on difference from MODIFY_EXPR.
2175         * doc/c-tree.texi (INIT_EXPR): Likewise.
2176         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2177         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2178         (gimplify_target_expr): Likewise.
2179         (gimplify_cond_expr): Remove target handling.
2180         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2181         (gimplify_expr): Clobber it here.
2182         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2183         Do return slot optimization if we have an INIT_EXPR.
2184
2185         PR tree-opt/24365
2186         * tree-inline.c (declare_return_variable): Also clear
2187         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2188
2189         PR c++/16405
2190         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2191
2192         PR middle-end/22439
2193         * gimplify.c (gimplify_one_sizepos): Fix typo.
2194
2195 2006-02-08  Jeff Law  <law@redhat.com>
2196
2197         PR tree-optimization/21417
2198         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2199         across a backedge if the control statement at the end of the
2200         block is data dependent on other statements in the same block.
2201         (record_temporary_equivalences_from_stmts): Remove over-conservative
2202         test for threading across backedges.
2203
2204         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2205         control statement, handle all three special cases in the same
2206         manner as they all have the same desired solution.  No longer
2207         special case edge flag updating when the post dominator is
2208         the exit block.
2209
2210 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2211
2212         * tree.def (CHAR_TYPE): Remove.
2213         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2214         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2215         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2216         (gen_string_type_die): Delete unreachable function.
2217
2218         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2219         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2220         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2221         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2222         * builtins.c (type_to_class): Likewise.
2223         * fold-const.c (fold_convert, build_range_check,
2224         merge_ranges): Likewise.
2225         * expr.c (count_type_elements): Likewise.
2226         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2227         * stor-layout.c (layout_type): Likewise.
2228         * ipa-type-escape.c (type_to_consider): Likewise.
2229         * gimplify.c (omp_firstprivatize_type_sizes,
2230         gimplify_type_sizes): Likewise.
2231         * explow.c (promote_mode): Likewise.
2232         * tree-sra.c (is_sra_scalar_type): Likewise.
2233         * varasm.c (output_constant): Likewise.
2234         * tree-inline.c (remap_type_1): Likewise.
2235         * convert.c (convert_to_pointer, convert_to_real,
2236         convert_to_integer, convert_to_complex): Likewise.
2237
2238 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2239
2240         * df-scan.c (df_def_record_1): A set destination may
2241         be a parallel regardless of mode.
2242
2243 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2244
2245         PR target/22209
2246         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2247         * config/mips/_tilib.c: Remove.
2248         * config/fixtfdi.c: New libgcc source file.
2249         * config/fixunstfdi.c: New source file.
2250         * config/floatditf.c: New source file.
2251         * config/floatunditf.c: New souce file.
2252         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2253         files above instead of config/mips/_tilib.c.
2254         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2255
2256 2006-02-08  Jeff Law  <law@redhat.com>
2257
2258         PR tree-optimization/26169
2259         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2260         threading jumps.
2261
2262 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2263
2264         * df.h (DF_REG_SIZE): Return the length of the initialized
2265         part of the array.
2266
2267 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2268
2269         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2270         __muldf3): Return a correctly signed zero.
2271
2272 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2273
2274         * passes.c (register_one_dump_file): Accept the current properties
2275         instead of pass number.  Adjust call to dump_register.  Remove
2276         duplicated code.
2277         (register_dump_files): Now a wrapper around...
2278         (register_dump_files_1): ... this one.  Do not modify the pass
2279         structure.
2280         (next_pass_1): Cosmetic fix.
2281         (execute_todo): Keep second parameter only.  Use curr_properties
2282         instead of fetching it from the pass structure.  Check and set
2283         last_verified.
2284         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2285         instead of fetching it from the pass structure.  Fix calls to
2286         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2287         after running the pass.  Reset last_verified.
2288         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2289         at the beginning.
2290         (FIRST_AUTO_NUMBERED_DUMP): New.
2291         (dump_register): Remove "num" parameter, assign it within the
2292         function.
2293         (get_dump_file_name): Modify template for dumps.
2294         * tree-dump.h (dump_register): Adjust prototype.
2295         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2296         (PROP_trees): Add PROP_gimple_lomp.
2297         (TODO_set_props): New.
2298         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2299         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2300         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2301
2302 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2303
2304         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2305         (sparc64-*-linux*): Likewise.
2306         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2307         * config/sparc/t-linux: New file.
2308         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2309         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2310         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2311         -m32 -mlong-double-128.
2312
2313         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2314         * config/alpha/t-linux: New file.
2315         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2316
2317         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2318         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2319         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2320         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2321         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2322         (CPP_ARCH32_SPEC): Remove.
2323
2324 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2325
2326         PR tree-optimization/26145
2327         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2328         bbs pointer.
2329
2330 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2331
2332         PR target/26109
2333         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2334         >= 240000 when generating code for SOM runtime.
2335         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2336         to $$dyncall when generating code for SOM runtime..
2337
2338 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2339
2340         PR c++/18150
2341         * doc/invoke.texi (-Wsequence-point): Update documentation
2342         that -Wsequence-point is implemented for C++ as well.
2343
2344 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2345
2346         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2347         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2348         (LIB_SPEC): Likewise.
2349         * doc/invoke.texi (SPARC options): Document -pthread.
2350
2351 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2352
2353         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2354         PIC addresses.
2355
2356 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2357
2358         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2359         Correct comment describing BOOLEAN_TYPE.
2360
2361 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2362
2363         * c.opt: C++ frontend supports -Wdiv-by-zero.
2364         * c-opts.c (c_common_handle_option): Remove dead case.
2365
2366 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2367
2368         * configure.ac (TLS assembler check): Do not enable TLS by
2369         default on SPARC/Solaris before version 10.
2370         * configure: Regenerate.
2371
2372 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2373
2374         * doc/invoke.texi (xl-compat): Document conversion and support
2375         routine names.
2376
2377 2006-02-07  Jeff Law  <law@redhat.com>
2378
2379         * tree-vrp.c (find_conditional_asserts): Update comments.
2380         (simplify_stmt_for_jump_threading): New.
2381         (identify_jump_threads, finalize_jump_threads): New.
2382         (vrp_finalize): Call identify_jump_threads.
2383         (execute_vrp): Call finalize_jump_threads.
2384         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2385         (vrp_element, vrp_data, vrp_element_p): Remove.
2386         (vrp_hash_elt, vrp_variables_stack): Remove.
2387         (vrp_hash, vrp_eq, record_range): Remove.
2388         (simplify_cond_and_lookup_avail_expr): Remove.
2389         (extract_range_from_cond): Remove.
2390         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2391         (simplify_stmt_for_jump_threading): New.
2392         (dom_thread_across_edge): New wrapper.
2393         (tree_ssa_dominator_optimize): No longer initialize or
2394         finalize any of the VRP datastructures.  Remove iteration
2395         step and simplify as a result of removal of iteration step.
2396         (pass_dominator): Perform a cfg cleanup after DOM.
2397         (dom_opt_finalize_block): Use the new common routines
2398         for threading jumps.  Simplify stack management slightly.
2399         No longer need to unwind VRP state.
2400         (record_equivalences_from_incoming_edge): No longer record
2401         VRP information.
2402         (eliminate_redundant_computations): No longer call
2403         simplify_cond_and_lookup_avail_expr.
2404         * tree-flow.h (potentially_threadable_block): Prototype.
2405         (thread_across_edge): Likewise.
2406         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2407         (tree-ssa-threadedge.o): Add dependencies.
2408         * tree-ssa-threadedge.c: New file.
2409         * passes.c (init_optimization_passes): Merge PHIs before
2410         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2411
2412 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2413
2414         * df-core.c (df_set_blocks): Do not dereference function pointers.
2415         (df_finish1): Likewise.
2416         (df_hybrid_search_forward): Likewise.
2417         (df_hybrid_search_backward): Likewise.
2418         (df_iterative_dataflow): Likewise.
2419         (df_analyze_problem): Likewise.
2420         (df_compact_blocks): Likewise.
2421         (df_dump): Likewise.
2422         * df-scan.c (df_rescan_blocks): Likewise.
2423         (df_record_entry_block_defs): Likewise.
2424
2425         * genconditions.c (write_conditions): Guard the definition of
2426         'insn_conditions' with the check on GCC version.
2427         (write_writer): Guard the traversal 'insn_conditions' with
2428         the check on GCC version.
2429
2430 2006-02-07  Richard Guenther  <rguenther@suse.de>
2431
2432         PR c++/26140
2433         Revert
2434         2006-01-30  Richard Guenther  <rguenther@suse.de>
2435         PR c++/23372
2436         * gimplify.c (gimplify_target_expr): Handle easy cases
2437         without creating a temporary.
2438
2439 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2440
2441         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2442         use of float in probability computations.  Use edge probabilities
2443         in place of statically computed probabilities.
2444         (min_spec_prob): New static variable.
2445         (schedule_insns): Initialize it.
2446         (GET_SRC_PROB): Removed.
2447         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2448
2449 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2450
2451         PR debug/24444
2452         * config/ia64/unwind-ia64.c: Revert last change.
2453         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2454         (INCOMING_FRAME_SP_OFFSET): Define.
2455
2456 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2457
2458         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2459
2460 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2461
2462         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2463         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2464         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2465         (ix86_return_in_memory): Handle TDmode.
2466         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2467         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2468
2469 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2470
2471         * reorg.c (dbr_schedule): Use dump_file instead of file.
2472
2473 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2474
2475         PR target/25917
2476         * config/ia64/predicates.md (extr_len_operand): New predicate.
2477         * config/ia64/ia64.md (extv): Tighten constraints.
2478         (extzv): Ditto.
2479         (*tbit_and_2): Ditto.
2480         (*tbit_and_3): Ditto.
2481         (*tbit_or_2): Ditto.
2482         (*tbit_or_3): Ditto.
2483         (*bit_zero): Ditto.
2484         (*bit_one): Ditto.
2485
2486 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2487
2488         PR target/23359
2489         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2490
2491 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2492
2493         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2494         loop_optimizer_init and loop_optimizer_finalize
2495         * tree-ssa-sink.c (execute_sink_code): Ditto.
2496         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2497         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2498         tree_ssa_loop_done): Ditto.
2499         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2500         * sched-ebb.c: Include output.h.
2501         (schedule_ebbs): Do not use dump argument.
2502         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2503         * loop.c (loop_dump_stream): Removed.
2504         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2505         argument.
2506         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2507         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2508         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2509         loop_iterations, strength_reduce, record_biv, record_giv,
2510         final_giv_value, check_final_value, check_ext_dependent_givs,
2511         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2512         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2513         dump_file instead of loop_dump_stream.
2514         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2515         argument dump_file.
2516         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2517         dump argument.
2518         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2519         * haifa-sched.c: Include output.h
2520         (schedule_insns, sched_init): Do not use dump argument.
2521         * mode-switching.c (optimize_mode_switching): Ditto.
2522         * modulo-sched.c (stats_file): Removed.
2523         (print_node_sched_params): Do not call argument dump_file.
2524         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2525         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2526         of stats_file.
2527         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2528         use dump argument.
2529         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2530         rtl_loop_init, rtl_loop_done): Ditto.
2531         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2532         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2533         Ditto.
2534         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2535         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2536         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2537         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2538         * emit-rtl.c (renumber_insns): Ditto.
2539         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2540         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2541         * regclass.c (regclass): Ditto.
2542         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2543         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2544         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2545         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2546         Ditto.
2547         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2548         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2549         to regclass.
2550         * gcse.c (gcse_file, debug_stderr): Removed.
2551         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2552         rest_of_handle_gcse): Do not use dump argument.
2553         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2554         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2555         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2556         compute_code_hoist_vbeinout, compute_code_hoist_data,
2557         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2558         compute_store_table, build_store_vectors, insert_insn_start_bb,
2559         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2560         store_motion): Use dump_file instead of gcse_file.
2561         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2562         * profile.c (profile_dump_file): Removed.
2563         (branch_prob): Use dump_file instead of profile_dump_file.
2564         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2565         dump_file.
2566         * tree-ssa-copy.c (dump_copy_of): Ditto.
2567         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2568         dump file to life_analysis.
2569         * bt-load.c (branch_target_load_optimize): Ditto.
2570         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2571         renumber_insns.
2572         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2573         regclass, dbr_schedule): Declaration changed.
2574         * sched-int.h (sched_init): Declaration changed.
2575         * tree-profile.c (tree_profile_dump_file): Removed.
2576         (tree_profile_hooks): Removed profile_dump_file hook.
2577         * rtl-profile (rtl_profile_dump_file): Removed.
2578         (rtl_profile_hooks): emoved profile_dump_file hook.
2579         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2580         changed.
2581         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2582         * tree-cfg.c (build_tree_cfg): Ditto.
2583         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2584         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2585         Declaration changed.
2586         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2587         life_analysis and schedule_insns.
2588         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2589         life_analysis.
2590         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2591         dbr_schedule.
2592         * config/mips/mips.c (mips_reorg): Ditto.
2593         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2594         schedule_ebbs.
2595
2596 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2597
2598         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2599         (s390_mangle_fundamental_type): New.
2600         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2601         Define.
2602
2603         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2604         (alpha_mangle_fundamental_type): New.
2605         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2606         Define.
2607
2608         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2609         Define.
2610         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2611         Define.
2612         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2613         (sparc_mangle_fundamental_type): New.
2614
2615 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2616
2617         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2618         (s390x-*-linux*): Likewise.
2619         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2620         * config/s390/t-linux: New file.
2621
2622 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2623
2624         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2625         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2626
2627 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2628
2629         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2630         (ANTIC_SAFE_LOADS): New macro.
2631         (find_or_generate_expression): Add prototype.
2632         (set_contains_value): Allow null set for sake of not always having
2633         to allocate ANTIC_SAFE_LOADS.
2634         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2635         Allow COMPONENT_REF too.
2636         (valid_in_set): Allow COMPONENT_REF.
2637         Check ANTIC_SAFE_LOADS too.
2638         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2639         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2640         rename.
2641         (can_PRE_operation): Add COMPONENT_REF.
2642         (create_component_ref_by_pieces): New function.
2643         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2644         (insert_aux): Move AGGREGATE_TYPE_P check here.
2645         (compute_avail): Set bb local stmt uids.
2646         (pass_pre): Use TODO_update_ssa_only_virtuals.
2647
2648 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2649
2650         * configure.ac: Unconditionally disable decimal float by default.
2651         * configure: Regenerate.
2652
2653 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2654
2655         * read-rtl.c (read_name): Terminate reading on EOF.
2656
2657 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2658
2659         * dfp.c (decimal_real_arithmetic): Change second argument type
2660         from int to enum tree_code. Do not always return true, but now
2661         return result of any call to decimal_do helper functions.
2662         * dfp.h (decimal_real_arithmetic): Update prototype.
2663
2664 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2665
2666         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2667
2668 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2669
2670         PR tree-opt/25251
2671         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2672         forced labels.
2673
2674 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2675
2676         * tree-vrp.c (cfg_loops): Removed.
2677         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2678         Use current_loops instead of cfg_loops.  Pass flags to
2679         loop_optimizer_init.
2680         * cfgloopmanip.c (fix_loop_structure): Update only available
2681         information.
2682         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2683         loop_optimizer_init.
2684         * modulo-sched.c (build_loops_structure): Removed.
2685         (sms_schedule): Use loop_optimizer_init.
2686         * loop-init.c (loop_optimizer_init): Use flags to determine
2687         which properties of loops to prepare.
2688         (rtl_loop_init): Pass flags to loop_optimizer_init.
2689         * tree-ssa-sink.c (execute_sink_code): Ditto.
2690         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2691         * tree-ssa-pre.c (init_pre): Ditto.
2692         * cfgloop.h (LOOPS_NORMAL): New.
2693         (loop_optimizer_init): Declaration changed.
2694
2695 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2696
2697         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2698         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2699         pa/t-pa.
2700         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2701         pa/t-pa.
2702         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2703         pa/x-ada.
2704         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2705         * pa/t-pa64: Delete quadlib.c rule.
2706         * pa/x-ada: Revert last change.
2707         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2708
2709 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2710
2711         PR rtl-optimization/26087
2712         * rtlanal.c (canonicalize_condition): Do not cross basic block
2713         boundaries.
2714
2715 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2716
2717         PR debug/24444
2718         * config/ia64/ia64.c: Include debug.h.
2719         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2720         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2721         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2722         (process_epilogue, process_set, process_for_unwind_directive):
2723         Output unwind info only if requested.  Add CFA info if requested.
2724         Add new arguments as needed.  Adjust callers.
2725         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2726         incorrect default.
2727         (DWARF2_FRAME_INFO): Define to zero.
2728         * config/ia64/unwind-ia64.c: Remove code that compensated for
2729         the CFA offset error fixed above.
2730         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2731         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2732         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2733         -funwind-tables and -fexceptions to enable frame info.
2734         (dwarf2out_frame_init): Define initial CFA even if
2735         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2736         DWARF2_UNWIND_INFO is nonzero, not just defined.
2737         (dwarf2out_frame_finish): Output non-EH call frame info only
2738         if DWARF2_FRAME_INFO is nonzero.
2739         (convert_cfa_to_loc_list,
2740         compute_frame_pointer_to_cfa_displacement): Define even if
2741         unwind info is not supported.
2742         (gen_subprogram_die): Use the above unconditionally.  Remove
2743         legacy alternate code.
2744         * toplev.c (compile_file): Compile in call to
2745         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2746         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2747
2748 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2749             Jakub Jelinek  <jakub@redhat.com>
2750
2751         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2752         IBM extended float format long double as "g" on powerpc*-linux.
2753
2754 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2755
2756         PR target/25926
2757         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2758         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2759
2760 2006-02-03  Jason Merrill  <jason@redhat.com>
2761
2762         PR c++/25979
2763         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2764
2765         PR middle-end/25977
2766         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2767         on the return slot if it's an NRV.
2768
2769 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2770
2771         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2772         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2773         rewrite_use): Do not handle USE_OUTER.
2774         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2775         add_iv_outer_candidates, may_replace_final_value,
2776         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2777         (find_interesting_uses_op): Functionality of
2778         find_interesting_uses_outer_or_nonlin moved here.
2779         (find_interesting_uses_outside): Use find_interesting_uses_op.
2780
2781 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2782
2783         PR target/25960
2784         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2785
2786 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2787             Ulrich Weigand  <uweigand@de.ibm.com>
2788
2789         PR target/25864
2790         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2791         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2792         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2793         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2794         and dxr fields.
2795         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2796         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2797         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2798         Define secondary reloads for TFmode moves.
2799         (constant_modes): Add TFmode.
2800         (NR_C_MODES): Set to 8.
2801         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2802         builtin define.
2803         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2804         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2805         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2806         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2807         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2808         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2809         (FPR mode macro): Add TFmode.
2810         (DSF mode macro): New.
2811         (<de>, <dee> mode attributes): Removed.
2812         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2813         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2814         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2815         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2816         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2817         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2818         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2819         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2820         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2821         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2822         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2823         "*negabs<mode>2", "sqrt<mode>2"):
2824         Changed <de> to <xde>. R constraint replaced by <Rf>.
2825         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2826         <Rf>.
2827         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2828         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2829         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2830         splitters.
2831         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2832         "extenddftf2", "extendsftf2"): New expanders.
2833         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2834         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2835         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2836         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2837         New options.
2838         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2839         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2840         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2841         __floatditf): Add a GCC_4.1.0 symbol version tag.
2842         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2843         the new options.
2844
2845 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2846
2847         PR target/25377
2848         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2849         Use targetm.binds_local_p instead of TREE_PUBLIC.
2850
2851 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2852
2853         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2854         on INTEGER_TYPEs to indicate that it denotes a character type.
2855         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2856         signed_char_type_node, unsigned_char_type_node and char_type_node.
2857         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2858         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2859         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2860
2861 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2862             Daniel Berlin  <dberlin@dberlin.org>
2863
2864         * tree-tailcall.c (arg_needs_copy_p): New function.
2865         (eliminate_tail_call): Use arg_needs_copy_p.
2866         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2867         (add_virtual_phis): New function.
2868
2869 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2870
2871         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2872         #ignore instead of #scratch for %g7 .register directive.
2873
2874 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2875
2876         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2877         object files.
2878
2879 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2880
2881         * flow.c (calculate_global_regs_live): Assert that there aren't any
2882         EDGE_FAKE edges.
2883
2884 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2885
2886         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2887         what its name says.
2888         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2889         bsi_after_labels iterator.
2890         * tree-if-conv.c (find_phi_replacement_condition,
2891         replace_phi_with_cond_modify_expr): Likewise.
2892         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2893         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2894
2895 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2896
2897         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2898
2899 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2900
2901         PR 25990
2902         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2903         array after growing it.
2904
2905 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2906
2907         PR middle-end/24901
2908         * fold-const.c (fold_checksum_tree): Change type of buf.
2909
2910 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2911
2912         * reload.c (push_secondary_reload): Initialize t_icode.
2913
2914 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2915
2916         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2917         -msoft-float -mlong-double-128 only issue a warning, but don't
2918         swich to DFmode long double.
2919
2920 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2921
2922         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2923         has a constant equivalent, iterate over equivalents for arg0,
2924         calling simplify_relational_operation and if there's a result
2925         cheaper than X, apply fold_rtx and return the result.
2926
2927 2006-02-01  Jan Hubicka  <jh@suse.cz>
2928
2929         * opts.c (no_unit_at_a_time_default): New global variable.
2930         (decode_options): Use it.
2931         * opts.h (no_unit_at_a_time_default): Declare.
2932
2933 2006-02-01  Paul Brook  <paul@codesourcery.com>
2934
2935         * function.c (assign_parm_setup_reg): Use function argument promotion
2936         rules.
2937         * expr.c (expand_expr_real_1): Use function argument promotion rules
2938         for PARM_DECLs.
2939
2940 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2941
2942         * gcc.c (process_command): Change j to 'unsigned int'.
2943
2944 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2945
2946         PR middle-end/26001
2947         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
2948         Use the corrected index for the character
2949         out of the string constant.
2950
2951 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2952
2953         * mode-switching.c (optimize_mode_switching): Fix size
2954         allocated for bb_info[n_entities].
2955
2956 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2957
2958         * gcc.c (main): Correct type that is allocated for
2959         explicit_link_files.
2960
2961 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
2962
2963         * config/s390/s390.c (init_alignment_context): Set
2964         ALIAS_SET_MEMORY_BARRIER on the MEM.
2965         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
2966
2967 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2968
2969         PR middle-end/25933
2970         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2971         dom_bbs pointer.
2972         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2973         call to tpa_init.
2974
2975 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2976
2977         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2978         * regrename.c: Ditto.
2979         * tree-ssa-loop-im.c: Ditto.
2980         * tree-dump.c: Ditto.
2981         * tree-complex.c: Ditto.
2982         * genrecog.c: Ditto.
2983         * tree-ssa-threadupdate.c: Ditto.
2984         * tracer.c: Ditto.
2985         * java/class.c: Ditto.
2986         * java/jcf-parse.c: Ditto.
2987         * java/resource.c: Ditto.
2988         * java/except.c: Ditto.
2989         * java/jvspec.c: Ditto.
2990         * java/jcf-write.c: Ditto.
2991         * java/jcf-path.c: Ditto.
2992         * java/gjavah.c: Ditto.
2993         * java/zextract.c: Ditto.
2994         * java/jcf-io.c: Ditto.
2995         * java/jcf.h: Ditto.
2996         * java/buffer.c: Ditto.
2997         * java/lang.c: Ditto.
2998         * java/parse-scan.y: Ditto.
2999         * java/lex.c: Ditto.
3000         * java/lex.h: Ditto.
3001         * cfgloopmanip.c: Ditto.
3002         * postreload-gcse.c: Ditto.
3003         * tree-ssa-loop-manip.c: Ditto.
3004         * postreload.c: Ditto.
3005         * tree-ssa-loop-ch.c: Ditto.
3006         * loop.c: Ditto.
3007         * ipa-cp.c: Ditto.
3008         * cppspec.c: Ditto.
3009         * diagnostic.c: Ditto.
3010         * final.c: Ditto.
3011         * genoutput.c: Ditto.
3012         * gcc.c: Ditto.
3013         * cfghooks.c: Ditto.
3014         * cfgloopanal.c: Ditto.
3015         * objc/objc-act.c: Ditto.
3016         * gcov.c: Ditto.
3017         * genextract.c: Ditto.
3018         * genautomata.c: Ditto.
3019         * pretty-print.c: Ditto.
3020         * genemit.c: Ditto.
3021         * cgraphunit.c: Ditto.
3022         * flow.c: Ditto.
3023         * df-scan.c: Ditto.
3024         * haifa-sched.c: Ditto.
3025         * dominance.c: Ditto.
3026         * dbxout.c: Ditto.
3027         * tree-ssa-loop-ivopts.c: Ditto.
3028         * df-core.c: Ditto.
3029         * mode-switching.c: Ditto.
3030         * modulo-sched.c: Ditto.
3031         * graph.c: Ditto.
3032         * ipa-pure-const.c: Ditto.
3033         * cse.c: Ditto.
3034         * fix-header.c: Ditto.
3035         * web.c: Ditto.
3036         * tree-stdarg.c: Ditto.
3037         * ipa-utils.c: Ditto.
3038         * loop-init.c: Ditto.
3039         * ipa-inline.c: Ditto.
3040         * cfganal.c: Ditto.
3041         * global.c: Ditto.
3042         * alloc-pool.c: Ditto.
3043         * dwarf2out.c: Ditto.
3044         * opts.c: Ditto.
3045         * genattrtab.c: Ditto.
3046         * tree-ssa-loop-ivcanon.c: Ditto.
3047         * predict.c: Ditto.
3048         * timevar.c: Ditto.
3049         * lcm.c: Ditto.
3050         * fortran/gfortranspec.c: Ditto.
3051         * regmove.c: Ditto.
3052         * local-alloc.c: Ditto.
3053         * langhooks.c: Ditto.
3054         * function.c: Ditto.
3055         * tree-vectorizer.c: Ditto.
3056         * gcse.c: Ditto.
3057         * ipa-type-escape.c: Ditto.
3058         * alias.c: Ditto.
3059         * tree-if-conv.c: Ditto.
3060         * profile.c: Ditto.
3061         * ipa.c: Ditto.
3062         * tree-data-ref.c: Ditto.
3063         * loop-unroll.c: Ditto.
3064         * treelang/treetree.c: Ditto.
3065         * calls.c: Ditto.
3066         * bt-load.c: Ditto.
3067         * ggc-common.c: Ditto.
3068         * except.c: Ditto.
3069         * coverage.c: Ditto.
3070         * cselib.c: Ditto.
3071         * tree-cfgcleanup.c: Ditto.
3072         * tree-ssa-pre.c: Ditto.
3073         * cfgcleanup.c: Ditto.
3074         * loop-invariant.c: Ditto.
3075         * loop-iv.c: Ditto.
3076         * ipa-prop.c: Ditto.
3077         * print-tree.c: Ditto.
3078         * conflict.c: Ditto.
3079         * ggc-page.c: Ditto.
3080         * sched-deps.c: Ditto.
3081         * regclass.c: Ditto.
3082         * tree-object-size.c: Ditto.
3083         * combine.c: Ditto.
3084         * bb-reorder.c: Ditto.
3085         * resource.c: Ditto.
3086         * var-tracking.c: Ditto.
3087         * cfgloop.c: Ditto.
3088         * df-problems.c: Ditto.
3089         * reg-stack.c: Ditto.
3090         * tlink.c: Ditto.
3091         * gccspec.c: Ditto.
3092         * sched-rgn.c: Ditto.
3093         * tree-ssa-structalias.c: Ditto.
3094         * tree-ssa-reassoc.c: Ditto.
3095         * config/darwin-c.c: Ditto.
3096         * config/darwin.c: Ditto.
3097         * config/arm/arm.c: Ditto.
3098         * cfgrtl.c: Ditto.
3099         * collect2.c: Ditto.
3100         * reload1.c: Ditto.
3101
3102 2006-01-31  Nicolas Pitre  <nico@cam.org>
3103
3104         * arm.md (smaxsi3): Make aware of smax_m1.
3105         (smax_m1): New.
3106
3107 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3108
3109         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3110
3111 2006-01-31  Richard Guenther  <rguenther@suse.de>
3112
3113         * doc/invoke.texi (-msselibm): Document.
3114         * target.h (expand_library_builtin): New target hook.
3115         * builtins.c (expand_builtin): Use expand_library_builtin.
3116         (default_expand_library_builtin): New function.
3117         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3118         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3119         (link_gcc_math_spec): Declare.
3120         (static_specs): Add link_gcc_math_spec.
3121         * expr.h (default_expand_library_builtin): Declare.
3122         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3123         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3124         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3125         * config/i386/i386.opt (msselibm): New target option.
3126         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3127         (ix86_init_sse_abi_builtins): New function.
3128         (ix86_expand_library_builtin): Likewise.
3129         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3130         (override_options): Handle error conditions wrt -msselibm.
3131         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3132         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3133         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3134         builtins.
3135
3136 2006-01-31  Richard Guenther  <rguenther@suse.de>
3137         Paolo Bonzini  <bonzini@gnu.org>
3138
3139         * doc/install.texi (--disable-libgcc-math): Document.
3140
3141 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3142
3143         * expr.h (expand_normal): new inline function.
3144         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3145         * dojump.c: use it.
3146         * dwarf2out.c: use it.
3147         * expr.c: use it.
3148         * calls.c: use it.
3149         * expmed.c: use it.
3150         * except.c: use it.
3151         * config/sparc/sparc.c: use it.
3152         * config/i386/i386.c: use it.
3153         * config/rs6000/rs6000.c: use it.
3154         * config/arm/arm.c: use it.
3155         * config/mips/mips.c: use it.
3156         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3157
3158 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3159
3160         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3161         argv to the appropriate type.
3162
3163 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3164
3165         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3166         unreachable code.
3167
3168 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3169
3170         PR target/26018
3171         * config/s390/s390.c (struct machine_function): New flag
3172         decomposed_literal_pool_addresses_ok_p.
3173         (s390_reorg): Set it before final stage of literal pool transforms.
3174         (s390_decompose_address): Only accept displacements of the form
3175         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3176
3177 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3178
3179         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3180         the comparison routine return.
3181
3182 2006-01-30  Michael Matz  <matz@suse.de>
3183
3184         * global.c (find_reg): Only evict for global regs.
3185         Take n_refs into account and dump more info.
3186
3187 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3188
3189         PR target/14798:
3190         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3191         (pragma_trap, pragma_nosave_low_regs): Likewise.
3192         (current_function_anonymous_args): Likewise.
3193         (sh_deferred_function_attributes): New variable.
3194         (sh_deferred_function_attributes_tail): Likewise.
3195         (print_operand): For '@', look up trap_exit attribute.
3196         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3197         handlers, save/restore fpscr, but don't do any other
3198         interrupt-specific saves.
3199         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3200         Fix check for partially saved registers to check for SHmedia.
3201         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3202         (sh_output_function_epilogue): Don't clear any of the removed
3203         variables.
3204         (sh_insert_attributes): Don't check pragma_interrupt.
3205         Insert deferred attributes.  Check that interrupt attribute is
3206         present for other attributes that require its presence.
3207         (sh_attribute_table): Add new attributes trapa_handler and
3208         nosave_low_regs.
3209         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3210         Don't check for pragma_interrupt.  Don't store argument.
3211         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3212         (sh_deferred_function_attributes): Declare.
3213         (sh_deferred_function_attributes_tail): Likewise.
3214         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3215         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3216         (*return_i): Don't use when trap_exit attribute is in effect.
3217         (*return_trapa): New insn pattern.
3218         * sh-c.c: New file.
3219         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3220         setting c_target_objs and cxx_target_objs.
3221         * t-sh: Add rule for sh-c.o.
3222
3223 2006-01-30  Richard Guenther  <rguenther@suse.de>
3224
3225         PR c++/23372
3226         * gimplify.c (gimplify_target_expr): Handle easy cases
3227         without creating a temporary.
3228
3229 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3230
3231         * vec.h (safe_grow): Remove duplicated line.
3232
3233 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3234
3235         PR 25874
3236         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3237         (expand_omp): ... here.
3238         (expand_omp_parallel): Only remove barriers for combined
3239         parallel+workshare constructs.
3240
3241 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3242
3243         Revert
3244
3245         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3246         * tree.c (build_qualified_type): Chain the new type to the original
3247         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3248         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3249         (build_pointer_type_for_mode): Only return unqualified types.
3250         (build_reference_type_for_mode): Likewise.
3251
3252 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3253
3254         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3255         * Makefile.in (CXX_COMPAT_WARN): Define.
3256         * configure: Regenerate.
3257
3258 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3259
3260         PR tree-opt/25911
3261         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3262         to an if check.
3263
3264 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3265
3266         * toplev.c: Fix thinko.
3267
3268 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3269             Marcin Dalecki  <martin@dalecki.de>
3270
3271         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3272         (push_srcloc): Use XNEW.
3273         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3274
3275 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3276
3277         * df-core.c (df_set_blocks): Deleted all variable.
3278
3279 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3280
3281         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3282         cgraph_output_pending_asms.
3283
3284 2006-01-28  Zack Weinberg  <zackw@panix.com>
3285
3286         * c.opt: Add -W(no-)overlength-strings.
3287         * doc/invoke.texi: Document it.
3288         * c-opts.c (c_common_handle_option): -pedantic implies
3289         -Woverlength-strings, if not explicitly disabled already.
3290         (c_common_post_options): -Woverlength-strings defaults to off, and
3291         is always off for C++.
3292         * c-common.c (fix_string_type): Issue warning about strings longer
3293         than is portable only if warn_overlength_strings.  Rearrange code
3294         a little for clarity.
3295         * configure.in: Check for -Wno-overlength-strings as well before
3296         enabling -pedantic in stage 1.
3297         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3298         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3299
3300         * genconditions.c (write_header, write_one_condition)
3301         (write_conditions, write_writer): Consolidate very long strings
3302         that were broken up to fit in C89 portable limit.  Don't use
3303         printf when fputs will do.
3304
3305 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3306
3307         * combine.c (simplify_comparison <AND>): Check
3308         TRULY_NOOP_TRUNCATION before start using a subreg.
3309
3310         * config/mips/mips.md (*branch_zero<mode>,
3311         *branch_zero<mode>_inverted, *branch_equality<mode>,
3312         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3313         Remove mode check from comparisons.
3314
3315 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3316
3317         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3318
3319 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3320
3321         * expmed.c (const_mult_add_overflow_p): Remove.
3322         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3323
3324         * recog.c (validate_replace_rtx_subexp): Remove.
3325         * recog.h: Remove the prototype for
3326         validate_replace_rtx_subexp.
3327
3328         * integrate.h: Remove the prototype for
3329         copy_decl_for_inlining.
3330         * rtl.h: Remove the prototype for mark_constant_function.
3331         * tree-vectorizer.h: Remove the prototype for
3332         vect_strip_conversion.
3333
3334         * modulo-sched.c (create_partial_schedule,
3335         free_partial_schedule, reset_partial_schedule): Make them
3336         static.
3337
3338         * hooks.c (hook_bool_rtx_int_false): Remove.
3339         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3340
3341 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3342
3343         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3344         and -mlong-double-128 are incompatible.
3345         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3346         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3347         (TARGET_LIBGCC2_CFLAGS): Define.
3348         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3349         (TARGET_LIBGCC2_CFLAGS): Same.
3350         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3351
3352 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3353
3354         PR c/19606.
3355         * c-typeck.c (build_binary_op): Perform implicit casts of
3356         operands before shortening them.
3357
3358         * cfgloopmanip.c (split_loop_bb): Remove.
3359         * cfgloop.h: Remove the prototype for split_loop_bb.
3360
3361         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3362         * cfgloop.h: Remove the prototype for
3363         flow_loop_outside_edge_p.
3364
3365         * emit-rtl.c (init_virtual_regs): Make it static.
3366         * function.h: Remove the prototype for init_virtual_regs.
3367
3368         * recog.c (peephole2_optimize): Make it static.
3369         * recog.h: Remove the prototype for peephole2_optimize.
3370
3371 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3372
3373         * df-scan.c (df_record_entry_block_defs): Check if
3374         INCOMING_RETURN_ADDR_RTX is defined.
3375
3376 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3377             Kenneth Zadeck <zadeck@naturalbridge.com>
3378
3379         PR rtl-optimization/24762
3380         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3381         * targhooks.c (hook_void_bitmap): New hook prototype.
3382         * targhoohs.h (hook_void_bitmap): Ditto.
3383         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3384         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3385         * target.h (live_on_entry): New function pointer.
3386         * df-scan.c (df_all_hard_regs): Removed.
3387         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3388         (df_scan_free_internal): Added df->entry_block_defs.
3389         (df_scan_alloc): Ditto.
3390         (df_scan_dump): Ditto.
3391         (df_uses_record): Plumbed flag field properly thru calls.
3392         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3393         This part fixes PR24762.
3394         (df_bb_refs_record): Added code to make the frame and arg
3395         pointers live in EH blocks.
3396         (df_refs_record): Added call to df_record_entry_block_defs.
3397         (df_record_entry_block_defs): New function.
3398         * df-core.c: Added comments to describe new artifical defs.
3399         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3400         (entry_block_defs): New field in struct df.
3401         (df_all_hard_regs): Deleted.
3402         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3403         * df-problems.c (df_ru_bb_local_compute_process_def):
3404         Added code to handle artifical defs in the entry to a function.
3405         (df_ru_bb_local_compute): Ditto.
3406         (df_rd_bb_local_compute_process_def):  Ditto.
3407         (df_rd_bb_local_compute): Ditto.
3408         (df_lr_bb_local_compute): Ditto.
3409         (df_ur_bb_local_compute): Ditto.
3410         (df_urec_bb_local_compute):  Ditto.
3411         (df_chain_create_bb):  Ditto.
3412  &n