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PR gomp/26238
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
2
3         PR gomp/26238
4         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
5         expansion.
6
7 2006-03-07  Richard Guenther  <rguenther@suse.de>
8
9         PR tree-optimization/26587
10         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
11
12 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
13
14         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
15
16 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
17
18         * hooks.c (hook_bool_mode_rtx_true): New function.
19         * hooks.h (hook_bool_mode_rtx_true): Declare.
20         * toplev.c (compile_file): Call output_shared_constant_pool.
21         * varasm.c (shared_constant_pool): New variable.
22         (assemble_start_function, assemble_end_function): Remove arguments
23         from call to output_constant_pool.
24         (create_constant_pool): New function, split out from...
25         (init_varasm_status): ...here.
26         (force_const_mem): Choose between the shared and per-function constant
27         pools.  Set current_function_uses_const_pool when reusing old entries
28         as well as when creating new ones.
29         (mark_constant): Ignore data argument.
30         (mark_constants): Remove pool argument.
31         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
32         to decide whether the function uses a constant pool.
33         (output_constant_pool_contents): New function, split out from...
34         (output_constant_pool): ...here.
35         (output_shared_constant_pool): New function.
36         (init_varasm_once): Initialize shared_constant_pool.
37         * output.h (output_constant_pool): Delete.
38         (output_shared_constant_pool): Declare.
39         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
40         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
41
42 2006-03-06  Nick Clifton  <nickc@redhat.com>
43
44         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
45         flag_strength_reduce.
46
47 2006-03-06  Ben Elliston  <bje@au.ibm.com>
48
49         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
50         x86_64-*-linux* configurations.
51
52         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
53         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
54
55 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
56
57         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
58         Remove.
59         * basic-block.h: Remove the extern for
60         rediscover_loops_after_threading.
61
62         * cfgloop.c (cancel_loop): Make it static.
63         * cfgloop.h: Remove the prototype for cancel_loop.
64
65         * flow.c (recompute_reg_usage): Make it static.
66         * rtl.h: Remove the prototype for recompute_reg_usage.
67
68         * function.c (use_return_register): Make it static.
69         * function.h: Remove the prototype.
70
71 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
72
73         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
74         Remove.
75         * recog.h: Remove the prototype for
76         validate_change_maybe_volatile.
77
78 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
79
80         * rtlanal.c (replace_reg): Remove.
81         * rtl.h: Remove the prototype for replace_reg.
82
83 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
84
85         * regclass.c (reg_scan_update): Remove.
86         (reg_scan_mark_refs): Remove the last argument.
87         * rtl.h: Remove the prototype for reg_scan_update.
88
89 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
90
91         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
92         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
93         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
94         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
95         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
96         loop-invariant.c, omp-low.c, opts.c, passes.c,
97         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
98         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
99         tree-ssa-structalias.c, tree-ssa-threadedge.c,
100         tree-ssa-threadupdate.c, tree-vect-patterns.c,
101         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
102         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
103
104 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
105
106         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
107         * dwarf2out.h: Remove the prototype for
108         dwarf2out_add_library_unit_info.
109
110 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
111
112         * tree.c (add_var_to_bind_expr): Remove.
113         * tree.h: Remove the prototype for add_var_to_bind_expr.
114
115 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
116
117         * regclass.c (n_non_fixed_regs): Remove.
118         (init_reg_sets_1, globalize_reg): Remove all uses of
119         n_non_fixed_regs.
120         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
121
122 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
123
124         * rtlanal.c (insns_safe_to_move_p): Remove.
125         * rtl.h: Remove the prototype for insns_safe_to_move_p.
126
127 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
128
129         * expmed.c (expand_mult_add): Remove.
130         * expr.h: Remove the prototype for expand_mult_add.
131
132 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
133
134         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
135         and REG_SAVED_VAL_EXP constants.
136         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
137         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
138         Handle regs stored by value.
139         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
140         (execute_cfa_program): Handle DW_CFA_val_offset,
141         DW_CFA_val_offset_sf and DW_CFA_val_expression.
142         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
143         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
144         (uw_install_context_1): Handle target regs stored by value.
145
146 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
147
148         * tree-sra.c (tree_sra): Return todoflags;
149         (generate_one_element): Set TODO_update_smt_usage if needed.
150         (pass_sra): Remove TODO_update_smt_usage.
151         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
152         parameter.
153         (tree_ssa_forward_propagate_single_use_vars): Return
154         TODO_update_smt_usage if we need to update SMT usage.
155         (pass_forwprop): Remove TODO_update_smt_usage.
156         
157 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
158
159         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
160         (correct_use_link): Remove reference to get_stmt_operands.
161         (update_stmt_operands): Likewise.
162         (get_modify_expr_operands): New function factored out of
163         parse_ssa_operands and get_expr_operands.
164         Try to create V_MUST_DEFs for LHS by default.
165         (get_expr_operands) <case MODIFY_EXPR>: Call
166         get_modify_expr_operands.
167         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
168         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
169         (parse_ssa_operands) <case MODIFY_EXPR>: Call
170         get_modify_expr_operands.
171
172 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
173
174         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
175         * tree-flow.h: Remove the prototype for
176         referenced_var_lookup_if_exists.
177
178 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
179
180         PR rtl-optimization/26345
181         PR target/19061
182         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
183
184 2006-03-03  Roger Sayle  <roger@eyesopen.com>
185
186         PR tree-optimization/26524
187         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
188         fold_convert to create a constant of the appropriate type.
189
190 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
191
192         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
193         SYMBOL_REF_IN_BLOCK_P.
194         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
195         of SYMBOL_FLAG_IN_BLOCK.
196         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
197         instead of SYMBOL_REF_IN_BLOCK_P.
198         * explow.c (use_anchored_address): Likewise.
199         * rtl.c (rtx_size): Likewise.
200         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
201         instead of SYMBOL_FLAG_IN_BLOCK.
202         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
203         SYMBOL_REF_IN_BLOCK_P.
204         (assemble_variable): Likewise.
205         (output_constant_def_contents): Likewise.
206         (output_constant_pool): Likewise.
207         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
208         instead of SYMBOL_FLAG_IN_BLOCK.
209         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
210         SYMBOL_REF_IN_BLOCK_P.
211         (SYMBOL_REF_BLOCK): Likewise.
212         (SYMBOL_REF_OFFSET): Likewise.
213         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
214         SYMBOL_REF_IN_BLOCK_P.
215         (SYMBOL_FLAG_IN_BLOCK): Replace with...
216         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
217         (SYMBOL_REF_IN_BLOCK_P): Replace with...
218         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
219
220 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
221
222         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
223
224 2006-03-02  Roger Sayle  <roger@eyesopen.com>
225
226         * simplify-rtx.c (simplify_unary_operation): When simplifying
227         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
228         that we perform the right shift in the appropriate mode, and
229         then extend or truncate the result to requested mode.
230
231 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
232
233         * gengtype.c (main): Handle double_int type.
234         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
235         * double-int.c: New file.
236         * double-int.h: New file.
237         * system.h: Include doubleint.h.
238         * Makefile.in (SYSTEM_H): Include double-int.h.
239         (double-int.o): Add.
240
241 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
242
243         PR bootstrap/26478
244         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
245         copying over it.
246
247 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
248
249         * tree-vrp.c (remove_range_assertions): Do not update statements
250         unnecessarily.
251
252 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
253
254         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
255         cleanup.
256         * gcse.c (rest_of_handle_gcse): Ditto.
257         * except.c (gate_handle_eh): Ditto.
258         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
259         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
260
261 2006-03-02  Eric Christopher  <echristo@apple.com>
262
263         * config/i386/i386.c (machopic_output_stub): Add indirection to
264         jump.
265
266 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
267
268         * loop.c: Removed.
269
270 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
271
272         Sun Niagara specific optimizations.
273         * config.gcc: Recognize niagara as target.
274         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
275         (TARGET_CPU_niagara): Define.
276         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
277         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
278         (CPP_CPU_SPEC): Handle -mcpu=niagara.
279         (ASM_CPU_SPEC): Likewise.
280         (PROCESSOR_NIAGARA): New enum entry.
281         (REGISTER_MOVE_COST): Handle Niagara.
282         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
283         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
284         (sparc_override_options): Recognize "niagara", set appropriate
285         default MASK_* values for it, and align functions to 32-bytes
286         by default just like ULTRASPARC/ULTRASPARC3.
287         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
288         (sparc64_initialize_trampoline): Likewise.
289         (sparc_use_sched_lookahead): Use zero for niagara.
290         (sparc_issue_rate): Use one for niagara.
291         * config/sparc/niagara.md: New file.
292         * config/sparc/sparc.md: Include it.
293         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
294         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
295         when default cpu is niagara.
296         (CPP_CPU_SPEC): Handle -mcpu=niagara.
297         (ASM_CPU_SPEC): Likewise.
298         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
299         when default cpu is niagara.
300         (ASM_CPU_SPEC): Handle -mcpu=niagara.
301         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
302         just like v9/ultrasparc/ultrasparc3.
303         * doc/invoke.texi: Add documentation for "niagara" and improve
304         existing documentation for ultrasparc variants.
305
306 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
307
308         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
309
310 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
311
312         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
313         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
314         and say that only one is needed.
315         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
316         * target.h (have_switchable_bss_sections): New hook.
317         * explow.c (use_anchored_address): Check that the symbol is in a block.
318         * varasm.c (tls_comm_section, comm_section, lcomm_section)
319         (bss_noswitch_section): New variables.
320         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
321         (get_noswitch_section): New function.
322         (get_block_for_section): Allow SECT to be null.
323         (unlikely_text_section_p): Use SECTION_STYLE.
324         (bss_initializer_p): New function.
325         (get_variable_section): Move earlier in file.  Take a new argument,
326         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
327         Return one of the new *_sections in such cases.
328         (get_block_for_decl): New function, extracting some logic from
329         use_blocks_for_decl_p.
330         (change_symbol_section): Remove in favor of...
331         (change_symbol_block): ...this new function.
332         (use_blocks_for_decl_p): Remove checks now performed by
333         get_block_for_decl.
334         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
335         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
336         (emit_local, emit_bss, emit_common): ...these new functions.
337         Return true if the alignment was honored.
338         (emit_tls_common): New function.
339         (asm_emit_uninitialised): Delete.
340         (assemble_variable_noswitch): New function, split out from...
341         (assemble_variable): ...here.  Don't make decisions about common
342         variables here.  Globalize all public decls that go into non-common
343         sections.  Check whether SYMBOL_REF_BLOCK is null.
344         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
345         (output_constant_pool): Likewise.
346         (init_varasm_once): Initialize the new section variables.
347         (have_global_bss_p): New function.
348         (categorize_decl_for_section): Use bss_initializer_p.
349         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
350         (place_block_symbol): Assert that the symbol must be in a block.
351         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
352         (TARGET_INITIALIZER): Include it.
353         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
354         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
355         (SECTION_MACH_DEP): Bump by two.
356         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
357         (unnamed_section): Mention SECTION_UNNAMED in comment.
358         (named_section): Likewise SECTION_NAMED.
359         (noswitch_section_callback): New type.
360         (noswitch_section): New structure.
361         (section): Add a noswitch_section alternative.
362         (SECTION_STYLE): New macro.
363         (tls_comm_section, comm_section, lcomm_section): Declare.
364         (bss_noswitch_section, have_global_bss_p): Declare.
365         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
366         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
367         Override.
368         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
369         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
370         Override.
371
372 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
373
374         * gcc/tree-vrp.c (execute_vrp): Return value.
375         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
376         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
377         * gcc/tree-complex.c (tree_lower_complex): Ditto.
378         (tree_lower_complex_O0): Ditto.
379         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
380         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
381         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
382         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
383         (execute_tail_calls): Ditto.
384         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
385         * gcc/tree.h (init_function_for_compilation): Ditto.
386         * gcc/ipa-cp.c (ipcp_driver): Ditto.
387         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
388         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
389         * gcc/final.c (compute_alignments): Ditto.
390         (rest_of_handle_final): Ditto.
391         (rest_of_handle_shorten_branches): Ditto.
392         (rest_of_clean_state): Ditto.
393         * gcc/omp-low.c (execute_expand_omp): Ditto.
394         (execute_lower_omp): Ditto.
395         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
396         * gcc/ipa-reference.c (static_execute): Ditto.
397         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
398         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
399         (rest_of_handle_machine_reorg): Ditto.
400         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
401         * gcc/flow.c (recompute_reg_usage): Ditto.
402         (rest_of_handle_remove_death_notes): Ditto.
403         (rest_of_handle_life): Ditto.
404         (rest_of_handle_flow2): Ditto.
405         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
406         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
407         (do_ssa_store_ccp): Ditto.
408         (execute_fold_all_builtins): Ditto.
409         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
410         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
411         * gcc/ipa-pure-const.c (static_execute): Ditto.
412         * gcc/cse.c (rest_of_handle_cse): Ditto.
413         (rest_of_handle_cse2): Ditto.
414         * gcc/web.c (rest_of_handle_web): Ditto.
415         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
416         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
417         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
418         * gcc/tree-nrv.c (tree_nrv): Ditto.
419         (execute_return_slot_opt): Ditto.
420         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
421         (create_structure_vars): Ditto.
422         * gcc/loop-init.c (rtl_loop_init): Ditto.
423         (rtl_loop_done): Ditto.
424         (rtl_move_loop_invariants): Ditto.
425         (rtl_unswitch): Ditto.
426         (rtl_unroll_and_peel_loops): Ditto.
427         (rtl_doloop): Ditto.
428         * gcc/gimple-low.c (lower_function_body): Ditto.
429         (mark_used_blocks): Ditto.
430         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
431         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
432         (cgraph_early_inlining): Ditto.
433         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
434         * gcc/jump.c (cleanup_barriers): Ditto.
435         (purge_line_number_notes): Ditto.
436         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
437         (rest_of_handle_if_after_reload): Ditto.
438         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
439         (tree_ssa_loop_im): Ditto.
440         (tree_ssa_loop_unswitch): Ditto.
441         (tree_vectorize): Ditto.
442         (tree_linear_transform): Ditto.
443         (tree_ssa_loop_ivcanon): Ditto.
444         (tree_ssa_empty_loop): Ditto.
445         (tree_ssa_loop_bounds): Ditto.
446         (tree_complete_unroll): Ditto.
447         (tree_ssa_loop_prefetch): Ditto.
448         (tree_ssa_loop_ivopts): Ditto.
449         (tree_ssa_loop_done): Ditto.
450         * gcc/predict.c (tree_estimate_probability): Ditto.
451         * gcc/recog.c (split_all_insns_noflow): Ditto.
452         (rest_of_handle_peephole2): Ditto.
453         (rest_of_handle_split_all_insns): Ditto.
454         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
455         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
456         (rest_of_handle_stack_adjustments): Ditto.
457         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
458         * gcc/function.c (instantiate_virtual_regs): Ditto.
459         (init_function_for_compilation): Ditto.
460         (rest_of_handle_check_leaf_regs): Ditto.
461         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
462         (rest_of_handle_gcse): Ditto.
463         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
464         * gcc/alias.c (rest_of_handle_cfg): Ditto.
465         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
466         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
467         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
468         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
469         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
470         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
471         * gcc/except.c (set_nothrow_function_flags): Ditto.
472         (convert_to_eh_region_ranges): Ditto.
473         (rest_of_handle_eh): Ditto.
474         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
475         (remove_unnecessary_notes): Ditto.
476         * gcc/except.h (set_nothrow_function_flags): Ditto.
477         (convert_to_eh_region_ranges): Ditto.
478         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
479         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
480         * gcc/tree-ssa-pre.c (do_pre): Ditto.
481         (execute_fre): Ditto.
482         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
483         (rest_of_handle_jump2): Ditto.
484         * gcc/tree-sra.c (tree_sra): Ditto.
485         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
486         (execute_mudflap_function_decls): Ditto.
487         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
488         (do_store_copy_prop): Ditto.
489         * gcc/ipa-prop.h (ipcp_driver): Ditto.
490         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
491         * gcc/tree-ssa-forwprop.c
492         (tree_ssa_forward_propagate_single_use_vars): Ditto.
493         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
494         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
495         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
496         (execute_late_warn_uninitialized): Ditto.
497         * gcc/rtl.h (cleanup_barriers): Ditto.
498         (split_all_insns_noflow): Ditto.
499         (purge_line_number_notes): Ditto.
500         (unshare_all_rtl): Ditto.
501         (remove_unnecessary_notes): Ditto.
502         (recompute_reg_usage): Ditto.
503         (variable_tracking_main): Ditto.
504         * gcc/integrate.c (emit_initial_value_sets): Ditto.
505         * gcc/integrate.h (emit_initial_value_sets): Ditto.
506         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
507         (execute_free_cfg_annotations): Ditto.
508         (execute_fixup_cfg): Ditto.
509         (execute_cleanup_cfg_pre_ipa): Ditto.
510         (execute_cleanup_cfg_post_optimizing): Ditto.
511         (execute_init_datastructures): Ditto.
512         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
513         * gcc/combine.c (rest_of_handle_combine): Ditto.
514         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
515         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
516         (rest_of_handle_reorder_blocks): Ditto.
517         (rest_of_handle_partition_blocks): Ditto.
518         * gcc/var-tracking.c (variable_tracking_main): Ditto.
519         * gcc/tree-profile.c (tree_profiling): Ditto.
520         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
521         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
522         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
523         (rest_of_handle_sched2): Ditto.
524         * gcc/basic-block.h (free_bb_insn): Ditto.
525         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
526         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
527         (remove_useless_stmts): Ditto.
528         (split_critical_edges): Ditto.
529         (execute_warn_function_return): Ditto.
530         (execute_warn_function_noreturn): Ditto.
531         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
532         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
533         * gcc/passes.c (execute_one_pass): Run additional
534         todos returned by execute function.
535         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
536         return a value.
537
538 2006-03-02  Richard Guenther  <rguenther@suse.de>
539
540         * tree-ssa-alias.c (find_used_portions): Consider taking
541         the address as making the variable not write-only.
542
543 2006-03-02  Nick Clifton  <nickc@redhat.com>
544
545         * config.gcc (default_use_cxa_atexit): Extend the description of
546         this configure variable.  Set its default value to "yes" for
547         Linux, NetBSD and ELF targets on the assumption that they will
548         use C libraries with the __cxa_atexit function.
549
550 2006-03-02  Ben Elliston  <bje@au.ibm.com>
551
552         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
553         parameter as unused to suppress a build warning.
554
555 2006-03-02  Ben Elliston  <bje@au.ibm.com>
556
557         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
558         config/dfp-bit.c.
559
560 2006-03-01  Roger Sayle  <roger@eyesopen.com>
561
562         PR other/26489
563         * gthr-posix.h (__gthrw2): Define to take three parameters, the
564         declared name, the weak reference name, and the typeof name.
565         (__gthrw): Avoid expanding the declared name suffix.
566         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
567
568 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
569
570         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
571         from DWARF 3.
572         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
573         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
574         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
575         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
576         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
577         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
578         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
579         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
580         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
581         DW_DS_leading_separate, DW_DS_trailing_separate): New.
582         (DW_END_default, DW_END_big, DW_END_little): New.
583         (DW_END_lo_user, DW_END_hi_user): Define.
584         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
585         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
586         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
587         DW_LANG_D): New.
588
589 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
590
591         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
592         Update all users.
593         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
594         Update all users.
595         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
596         Update all users.
597         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
598         Update all users.
599         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
600         to 'symbol_mem_tag'.
601         Update all users.
602         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
603         rename.
604
605 2006-03-01  Roger Sayle  <roger@eyesopen.com>
606
607         * builtins.c (fold_builtin_copysign): Delete unreachable code.
608
609 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
610
611         PR target/25761
612         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
613         MACHO_DYNAMIC_NO_PIC_P.
614         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
615
616 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
617
618         PR target/26389
619         * config/darwin-protos.h (darwin_asm_output_anchor):
620         Declare.
621         * config/darwin-sections.def (cstring_section):
622         Add SECTION_MERGE to the flags.
623         (literal4_section): Likewise.
624         (literal8_section): Likewise.
625         (objc_selector_refs_section): Likewise.
626         (objc_cls_refs_section): Likewise.
627         * config/darwin.c (darwin_asm_output_anchor): New
628         function.
629         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
630
631 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
632
633         Fix PR tree-optimization/26443
634         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
635         to todo and PROP_tmt_usage to properties_destroyed.
636         * tree-ssa-ccp.c (pass_ccp): Ditto.
637         (pass_store_ccp): Ditto.
638         * tree-ssa-dom.c (pass_dominator): Ditto.
639
640 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
641
642         * tree-ssa-operands.c: Cleanup whitespace.
643         (get_asm_expr_operands): Move before first invocation.
644         (get_indirect_ref_operands): Likewise.
645         (get_tmr_operands): Likewise.
646         (get_call_expr_operands): Likewise.
647         (append_def): Likewise.
648         (append_use): Likewise.
649         (append_v_may_def): Likewise.
650         (append_v_must_def): Likewise.
651         (add_call_clobber_ops): Likewise.
652         (add_call_read_ops): Likewise.
653         (add_stmt_operand): Likewise.
654         (add_virtual_operand): Likewise.
655         (build_ssa_operands): Likewise.
656
657 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
658
659         PR middle-end/26022
660         Revert:
661         PR middle-end/24437
662         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
663         with a call expr to ...
664         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
665
666 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
667
668         * tree-vrp.c (extract_range_from_assert): Remove special
669         handling for types with super-types.
670
671 2006-03-01  Ben Elliston  <bje@au.ibm.com>
672
673         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
674         and powerpc64-*-linux* configurations.
675         * config/t-dfprules: New file.
676
677         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
678         Compile dfp-bit.c from the source directory using -DWIDTH and
679         $DFP_CFLAGS to control the compilation of that file, rather than
680         generating width-specific versions in the build directory.
681         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
682         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
683
684 2006-02-28  Zack Weinberg  <zackw@panix.com>
685
686         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
687         continues to work.
688
689 2006-02-28  Eric Christopher  <echristo@apple.com>
690
691         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
692         Set up IN_LIBGCC definition of TARGET_64BIT.
693         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
694
695 2006-02-28  Roger Sayle  <roger@eyesopen.com>
696
697         PR middle-end/14752
698         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
699         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
700         cases via the construction of "expr != 0".
701
702 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
703
704         * alias.c (alias_invariant, alias_invariant_size): Remove.
705         (record_base_value): Remove.
706         (memrefs_conflict_p): Don't look at alias_invariant.
707         (end_alias_analysis): Don't free it.
708         * alias.h (record_base_value): Remove prototype.
709
710 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
711             Adam Nemet  <anemet@caviumnetworks.com>
712
713         * rtl.h (truncated_to_mode): Declare it.
714         (struct rtl_hooks): Add reg_truncated_to_mode hook.
715         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
716         (RTL_HOOKS_INITIALIZER): Include it.
717         * rtlhooks.c (reg_truncated_to_mode_general): New function.
718         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
719         reg_truncated_to_mode.
720         * rtlanal.c (truncated_to_mode): Define it.
721         * simplify-rtx.c (simplify_unary_operation_1): Use it.
722
723 2006-02-28  Jeff Law  <law@redhat.com>
724
725         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
726         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
727         the range allowed by TYPE_PRECISION.
728
729         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
730
731 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
732
733         PR tree-optimization/26419
734         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
735         values of n.
736
737 2006-02-27  Zack Weinberg  <zackw@panix.com>
738
739         * doc/md.texi: Fix typo in previous change.
740
741 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
742
743         * df.c: Remove.
744
745 2006-02-27  Zack Weinberg  <zackw@panix.com>
746
747         * rtl.def (define_constraint, define_register_constraint)
748         (define_memory_constraint, define_address_constraint): New MD forms.
749         * gensupport.c (process_rtx): Put define_constraint etc on the
750         predicate queue.
751         * genpreds.c (process_define_predicate): Adjust comment.  Validate
752         the name, and call validate_exp to validate the expression.
753         (mark_mode_tests, write_extract_subexp): Can assume correct input.
754         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
755         all callers changed.
756         (validate_exp, needs_variable, struct constraint_data)
757         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
758         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
759         (const_dbl_constraints, constraint_max_namelen)
760         (have_register_constraints, have_memory_constraints)
761         (have_address_constraints, have_address_constraints)
762         (have_extra_constraints, have_const_int_constraints)
763         (have_const_dbl_constraints, mangle, add_constraint)
764         (process_define_constraint, process_define_register_constraint)
765         (write_enum_constraint_num, write_lookup_constraint)
766         (write_insn_constraint_len, write_regclass_for_constraint)
767         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
768         (write_insn_extra_memory_constraint)
769         (write_insn_extra_address_constraint)
770         (write_satisfies_constraint_fns): New.
771         (write_tm_preds_h): If we have new-style constraint definitions,
772         prototype the functions generated from them, and define the
773         old constraint interface (still used by generic code) in terms of
774         those functions.
775         (write_insn_preds_c): If we have new-style constraint definitions,
776         generate all relevant functions from those definitions.
777         (main): Handle define_constraint etc.
778         * genoutput.c (struct constraint_data, indep_constraints)
779         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
780         (mdep_constraint_len): New data structures and functions, defined
781         #ifdef USE_MD_CONSTRAINTS.
782         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
783         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
784         use new logic to validate operand constraints against constraint
785         definitions.
786         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
787         defined.
788         * defaults.h: If none of the old-style constraint macros are
789         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
790         old-style macros; and poison REG_CLASS_FROM_LETTER,
791         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
792         EXTRA_CONSTRAINT.
793         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
794         * doc/md.texi: Document new constraint-definition mechanism and the
795         C interface it provides.  Remove references to old mechanism
796         elsewhere in the document.
797         (Machine Constraints): Use pathnames relative to gcc directory,
798         i.e. config/ARCH/FILE.  Change i386 section to refer to
799         config/i386/predicates.md; update that section to match docstrings.
800         * doc/tm.texi: Move all documentation of the old constraint-
801         definition macros to their own section, clearly mark as obsolete.
802
803         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
804         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
805         definitions.
806         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
807         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
808         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
809         constraint strings.
810         (splits and peepholes): Use satisfies_constraint_*.
811         * config/i386/i386.c (memory_address_length)
812         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
813
814 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
815
816         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
817         scalar operation to be put back into the loop.
818
819 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
820
821         PR other/26208
822         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
823         (extract_cie_info): Handle S flag in augmentation string.
824         (execute_cfa_program): If context->signal_frame, execute also
825         fs->pc == context->ra instructions.
826         (uw_frame_state_for): If context->signal_frame, don't subtract one
827         from context->ra to find FDE.
828         (uw_update_context_1): Set context->signal_frame to
829         fs->signal_frame.
830         (_Unwind_GetIPInfo): New function.
831         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
832         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
833         of _Unwind_GetIP.
834         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
835         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
836         * unwind-compat.c (_Unwind_GetIPInfo): New function.
837         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
838         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
839         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
840         * config/i386/linux-unwind.h (x86_fallback_frame_state,
841         x86_64_fallback_frame_state): Set fs->signal_frame.
842         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
843         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
844         (frob_update_context): Likewise.  Workaround missing S flag in
845         Linux 2.6.12 - 2.6.16 kernel vDSOs.
846         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
847         Remove the psw_addr + 1 hack.
848
849 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
850
851         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
852         with aggregates here.
853         (find_func_aliases): Remove code for &<aggregate> from here.
854
855 2006-02-26  Roger Sayle  <roger@eyesopen.com>
856
857         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
858         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
859         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
860         as (X & C) ne/eq 0.
861
862 2006-02-26  Roger Sayle  <roger@eyesopen.com>
863
864         PR middle-end/19983
865         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
866
867 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
868
869         * opts.c (decode_options): Do not handle flag_strength_reduce.
870         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
871         and OPT_fstrength_reduce.
872         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
873         flag_prefetch_loop_arrays for being nonzero.
874         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
875         no-ops.
876         (fprefetch-loop-arrays-rtl): Removed.
877         (flag_prefetch_loop_arrays): Do not specify the value.
878
879         * doc/passes.texi: Update documentation of loop optimizer
880         passes.
881         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
882         -frerun-loop-opt): Remove.
883
884 2006-02-26  Richard Guenther  <rguenther@suse.de>
885
886         PR tree-optimization/26421
887         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
888         in function calls that are ADDR_EXPRs as using the whole structure.
889
890 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
891
892         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
893         * tree-pass.h (pass_loop_optimize): Remove.
894         * passes.c (pass_loop_optimize): Never run it.
895         * toplev.c (backend_init): Don't call init_loop.
896         * opts.c (flag_loop_optimize_set): Remove.
897         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
898         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
899         the old RTL loop optimizer when profiling enabled.
900         * predict.c (tree_estimate_probability): Always strip builtin_expect.
901         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
902         pre-headers for the sake of the old RTL loop optimizer.
903         * Makefile.in: Remove all references to loop.o.
904
905         * doc/invoke.texi: Remove all references to -floop-optimize
906         and -frerun-loop-opt.
907
908 2006-02-26  Zack Weinberg  <zackw@panix.com>
909
910         * doc/md.texi (Machine Constraints): Refer to all files with paths
911         relative to gcc directory (i.e. config/CPU/file).  Add missing
912         @table @code ... @end table to M32C subsection.
913
914 2006-02-26  Roger Sayle  <roger@eyesopen.com>
915
916         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
917         (X & 1) == 0.
918         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
919
920 2006-02-26  Roger Sayle  <roger@eyesopen.com>
921             James A. Morrison  <phython@gcc.gnu.org>
922
923         PR middle-end/21137
924         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
925         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
926         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
927         signedness of the shift operation.
928
929 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
930
931         PR tree-optimization/26359
932         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
933
934 2006-02-25  Roger Sayle  <roger@eyesopen.com>
935
936         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
937         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
938         as X == 0, and some symmetry related transformations.
939         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
940
941 2006-02-25  Roger Sayle  <roger@eyesopen.com>
942
943         PR middle-end/23673
944         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
945         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
946         symmetry related transformations.  Fold (X^C1) == C2 as
947         X == (C1^C2).
948
949 2006-02-25  Juergen Weigert  <jw@suse.de>
950         Richard Guenther  <rguenther@suse.de>
951
952         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
953
954 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
955
956         * combine.c (gen_lowpart_or_truncate): Call
957         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
958
959 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
960
961         * doc/invoke.texi: Move -fopenmp description to "Options for
962         Code Generation".
963         Remove reference to -lgomp.
964
965 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
966
967         * doc/install.texi: Require GNU tar version 1.14.
968
969 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
970
971         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
972         * doc/invoke.texi (C++ Dialect Options): Document
973         -fno-use-cxa-get-exception-ptr.
974         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
975         * configure: Regenerate.
976         * c.opt (fuse-cxa-get-exception-ptr): New.
977         * c-opts.c (c_common_handle_option): Handle
978         OPT_fuse_cxa_get_exception_ptr.
979         * c-common.c (flag_use_cxa_atexit): Update documentation.
980         (flag_use_cxa_get_exception_ptr): New.
981         * c-common.h (flag_use_cxa_get_exception_ptr): New.
982         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
983         documentation.
984         (C_COMMON_OVERRIDE_OPTIONS): New.
985
986 2006-02-24  Roger Sayle  <roger@eyesopen.com>
987
988         PR middle-end/24952
989         * combine.c (try_combine): Explicitly check whether GET_CODE is
990         a SET or a CLOBBER, instead on checking that it isn't a USE.
991
992 2006-02-24  Roger Sayle  <roger@eyesopen.com>
993
994         * fold-const.c (fold_comparison): New subroutine of fold_binary
995         containing transformations common to both the equality and
996         ordering relational operators, factored out of fold_binary.
997         (fold_binary): Separate out the equality operators (EQ_EXPR
998         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
999         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1000         transformations common to both.
1001         (fold_div_compare): Fix latent bugs in the previously unreachable
1002         LT_EXPR and GE_EXPR cases.
1003
1004 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1005
1006         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1007         decl libname for clog to __clog on AIX.
1008
1009         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1010
1011 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1012
1013         PR target/26453
1014         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1015         output traceback table for thunks.  Localise rs6000_stack_info call.
1016
1017 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1018             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1019
1020         * gthr-posix.h (__gthrw): Fix typo in comment.
1021
1022 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1023
1024         * doc/cpp.texi (Character sets): Document that we do support
1025         input files to be in any character set.
1026
1027 2006-02-23  Jeff Law  <law@redhat.com>
1028
1029         * tree.h (PHI_ARG_NONZERO): Remove.
1030         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1031         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1032         node to the new node.
1033
1034         PR tree-optimization/26425
1035         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1036         min/max, then assume its varying.
1037
1038 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1039
1040         PR rtl-optimization/26316
1041         * rtlanal.c (enum may_trap_p_flags): New.
1042         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1043         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1044         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1045         (may_trap_after_code_motion_p): New function.
1046         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1047         (find_invariant_insn): Use may_trap_after_code_motion_p.
1048         * rtl.h (may_trap_after_code_motion_p): Declare.
1049
1050 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1051
1052         * emit-rtl.c (immed_double_const): Cleanup.
1053
1054 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1055
1056         Fix PR tree-optimization/26376
1057         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1058         remove assert.
1059
1060 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1061
1062         PR middle-end/26412
1063         * gimplify.c (omp_add_variable): Guard variable size decl test with
1064         DECL_SIZE (decl) check.
1065
1066 2006-02-23  Richard Guenther  <rguenther@suse.de>
1067
1068         PR middle-end/26439
1069         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1070         like aggregate types.
1071
1072 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1073
1074         * configure.ac: Add --with{,out}-long-double-128 configure option.
1075         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1076         * configure: Rebuilt.
1077         * config.in: Rebuilt.
1078         * doc/install.texi (Options specification): Document
1079         --with-long-double-128.
1080
1081         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1082         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1083         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1084         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1085
1086 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1087
1088         * config/s390/s390.c (override_options): Handle
1089         TARGET_DEFAULT_LONG_DOUBLE_128.
1090
1091         * config/alpha/alpha.c (override_options): Handle
1092         TARGET_DEFAULT_LONG_DOUBLE_128.
1093
1094         * config/sparc/sparc.c (sparc_override_options): Handle
1095         TARGET_DEFAULT_LONG_DOUBLE_128.
1096
1097 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1098
1099         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1100         (real-install-headers-tar, real-install-headers-cpio)
1101         (real-install-headers-cp): New targets.
1102
1103 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1104
1105         * tree.h (variable_section): Delete.
1106         * varasm.c (variable_section): Delete.
1107
1108 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1109
1110         * install.texi: Add notes on install.texi2html.
1111         (Building in parallel): Do not use footnotes.
1112
1113 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1114
1115         PR libgomp/26234
1116         * doc/install.texi (Configuration): Document --disable-libgomp.
1117
1118 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1119
1120         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1121
1122 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1123
1124         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1125         (vec_extractv2df_0_sse): New.
1126
1127 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1128
1129         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1130         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1131         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1132         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1133         to the result of the expression.
1134         (def_cfa_1): Adjust.
1135         (frame_pointer_cfa_offset): Rename to...
1136         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1137         (convert_cfa_to_loc_list): Rename to...
1138         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1139         Pass it on to build_cfa_loc.
1140         (compute_frame_pointer_to_cfa_displacement): Rename to...
1141         (compute_frame_pointer_to_fb_displacement): ... this.  New
1142         offset parameter.  Use it in computation.
1143         (gen_subprogram_die): Compute cfa_fb_offset with the new
1144         macro, and use it to compute the fb loc list and the
1145         displacement.
1146
1147 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1148
1149         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1150         replaced with register_operand.
1151         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1152         non-DREG is expensive.
1153         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1154         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1155         involving memory.
1156
1157 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1158
1159         * doc/install.texi2html: Use set -e.
1160
1161 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1162
1163         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1164         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1165         * doc/invoke.texi (-fshared-data): Delete.
1166         * common.opt (fshared-data): Delete.
1167         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1168         (assemble_static_space): Remove #if 0 code.
1169         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1170         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1171         * config/cris/cris.h: Remove FIXME.
1172
1173 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1174
1175         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1176         hooks.
1177
1178 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1179
1180         PR middle-end/26379
1181         * combine.c (simplify_shift_const_1): Disable nested shifts
1182         optimization for vector shifts.
1183
1184 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1185
1186         PR tree-optimization/26361
1187         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1188         of unsigned integer types.
1189
1190 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1191
1192         * tree-chrec.c (eq_evolutions_p): New.
1193         * tree-chrec.h (eq_evolutions_p): Declared.
1194         * tree-data-ref.c: Fix formatting.
1195         (datadep_stats, dependence_stats): New.
1196         (gcd): Moved...
1197         (print_direction_vector): New.
1198         (dump_data_dependence_relation): Use print_direction_vector.
1199         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1200         (compute_subscript_distance): Static.
1201         (initialize_data_dependence_relation): Static.  Get the number
1202         of loops surrounding the references from the callers, and initialize
1203         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1204         base_object_differ_p analyzers.
1205         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1206         compute_overlap_steps_for_affine_1_2,
1207         analyze_subscript_affine_affine): Count the classified dependences.
1208         Print a message when a test failed.
1209         (can_use_analyze_subscript_affine_affine): New.
1210         (analyze_siv_subscript): Compute the data dependences on symbolic
1211         scevs that verify can_use_analyze_subscript_affine_affine.
1212         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1213         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1214         Handle symbolic scevs.
1215         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1216         analyzed.
1217         (subscript_dependence_tester): Moved...
1218         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1219         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1220         DDR_SIZE_VECT instead of getting it in parameter.
1221         (subscript_dependence_tester): ... here.  Take as a parameter
1222         loop_nest_depth.  Call build_classic_dist_vector and
1223         build_classic_dir_vector.
1224         (compute_affine_dependence): Update subscript_dependence_tester
1225         parameters.  Update datadep_stats counters.  Call
1226         compute_subscript_distance.
1227         (compute_self_dependence): Save the dist and dir vectors.  Call
1228         compute_subscript_distance.
1229         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1230         (compute_all_dependences): Reorder parameters as they were before
1231         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1232         compute_subscript_distance.  Update the use of
1233         compute_affine_dependence and initialize_data_dependence_relation.
1234         (find_data_references_in_loop): Handle COMPONENT_REF.
1235         (compute_data_dependences_for_loop): Initialize dependence_stats.
1236         Don't call build_classic_dist_vector and build_classic_dir_vector.
1237         Update the parameters of initialize_data_dependence_relation and
1238         compute_all_dependences.  Print the statistics from datadep_stats.
1239         (analyze_all_data_dependences): Static.  Not used until the pass for
1240         checking the data dependences is contributed.
1241         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1242         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1243         (initialize_data_dependence_relation, compute_affine_dependence,
1244         analyze_all_data_dependences, compute_subscript_distance): Removed.
1245         (print_direction_vector): New.
1246         * lambda.h (gcd): ... here.
1247         (lambda_vector_gcd): Moved here from gcd_vector.
1248         * lambda-code.c (gcd, gcd_vector): Removed.
1249         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1250         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1251
1252 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1253
1254         * ipa-type-escape.c: Tidy some comments and white space.
1255         * tree-ssa-operands.c: Likewise.
1256
1257 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1258
1259         PR tree-opt/25879
1260         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1261         (dump_decl_name): Do not walk the decl tree chains.
1262         * tree-pass.h (TDF_CHAIN): Remove.
1263
1264 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1265
1266         * Makefile.in (C): Remove
1267         (PROTO): Remove
1268         (.PHONY): Remove C and PROTO
1269
1270 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1271
1272         PR middle-end/26236
1273         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1274         deprecated CHAR_TYPE tree code.
1275
1276 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1277
1278         * configure.ac (target_list): Add install-info, dvi, html.
1279         * configure: Regenerate.
1280
1281         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1282         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1283         treelang/Make-lang.in: Do not use double-colon rules.
1284
1285 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1286
1287         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1288         (TMT_USED_ALONE): New macro.
1289         * tree-pass.h (PROP_tmt_usage): New property.
1290         (TODO_update_tmt_usage): New todo.
1291         * tree-ssa-alias.c (updating_used_alone): New variable.
1292         (recalculate_used_alone): New function.
1293         (compute_may_aliases): Set updating_used_alone, call
1294         recalculate_used_alone.
1295         * tree-sra.c (pass_sra): Note that this pass destroys
1296         PROP_tmt_usage, and add TODO_update_tmt_usage.
1297         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1298         * tree-flow.h (updating_used_alone): Prototype.
1299         (recalculate_used_alone): Ditto.
1300         * passes.c (execute_todo): Add code to set updating_used_alone,
1301         and call recalculate.
1302         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1303         for clobber if used alone, and add assert to verify used_alone
1304         status.
1305
1306 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1307
1308         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1309         for non tls symbols added.
1310         (legitimize_address): Do nothing for PLUS expressions if one of the
1311         addends is a tls symbol reference.
1312
1313 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1314
1315         PR bootstrap/25476
1316
1317         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1318
1319         * Makefile.in (BOOTSTRAPPING): New.
1320         (quickstrap): New definition if BOOTSTRAPPING=yes.
1321
1322         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1323         * configure.ac: Substitute all_selected_languages with the languages
1324         that were configured.  For all the other variables except
1325         lang_specs_files, include all the languages in the tree.
1326         * configure: Regenerate.
1327
1328         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1329         if there is one.  Run the commands to run fixincludes in the same
1330         subshell.
1331
1332         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1333         * doc/install.texi: Document exact conventions for searching target tools.
1334         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1335         something more about building an Ada cross-compiler.  Don't list GNU Make
1336         requirements which affect all platforms.
1337
1338 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1339
1340         PR middle-end/19543
1341         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1342         only equivalent if the have both the same mode and precision.
1343
1344 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1345
1346         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1347
1348 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1349             Steven Bosscher  <stevenb.gcc@gmail.com>
1350
1351         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1352         constant pool references to identify stack mode constants.
1353         * rtlanal.c (constant_pool_constant_p): New predicate to check
1354         whether operand is a floating point constant in the pool.
1355         * rtl.h (constant_pool_constant_p): Prototype here.
1356         * loop.c (scan_loop): Avoid hoisting constants from the constant
1357         pool on STACK_REGS targets.
1358         (load_mems): Likewise.
1359         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1360         loads into x87 registers expensive in terms of register pressure.
1361
1362 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1363
1364         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1365         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1366
1367 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1368
1369         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1370         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1371
1372 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1373
1374         * doc/invoke.texi: Document -fipa-pta.
1375         * common.opt: Add ipa-pta option.
1376         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1377         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1378         (do_ds_constraint): Ditto.
1379         (get_constraint_for): Only add to referenced_vars if
1380         referenced_vars exists.
1381         (insert_into_field_list): Rewrite to do this unsorted.
1382         (insert_into_field_list_sorted): Rename old insert_into_field_list
1383         to this.
1384         (create_function_info_for): Use insert_into_field_list_sorted.
1385         (create_variable_info_for): Rewrite so it uses unsorted version,
1386         since the field list is sorted.
1387         (intra_create_variable_infos): Only add to referenced_vars if
1388         referenced_vars exists.
1389         (ipa_pta_execute): Init heapvars, and delete when done.
1390         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1391
1392 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1393
1394         * doc/install.texi: Add missing `@samp'.
1395
1396 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1397
1398         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1399         Use the arguments.
1400
1401 2006-02-18  Mark Wielaard  <mark@klomp.org>
1402
1403         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1404         who added new 4.1 features, bug fixes and integration support.
1405
1406 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1407
1408         PR target/26350
1409         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1410         MEM for ABI_V4 pic.
1411
1412 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1413
1414         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1415         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1416         (copy_insn_1): Likewise.  Don't copy each field individually.
1417         Reindent.
1418         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1419         of RTX_SIZE.
1420         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1421         * rtl.c (rtx_size): Rename variable to...
1422         (rtx_code_size): ...this.
1423         (rtx_size): New function.
1424         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1425         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1426         Reindent.
1427         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1428         * rtl.h (rtx_code_size): New variable.
1429         (rtx_size): Change from a variable to a function.
1430         (RTX_SIZE): Rename to...
1431         (RTX_CODE_SIZE): ...this.
1432
1433         PR target/9703
1434         PR tree-optimization/17106
1435         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1436         (Anchored Addresses): New section.
1437         * doc/invoke.texi (-fsection-anchors): Document.
1438         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1439         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1440         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1441         * hooks.c (hook_bool_mode_rtx_false): New function.
1442         * hooks.h (hook_bool_mode_rtx_false): Declare.
1443         * gengtype.c (create_optional_field): New function.
1444         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1445         SYMBOL_REF_IN_BLOCK_P is true.
1446         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1447         (min_anchor_offset, max_anchor_offset): Likewise.
1448         (use_anchors_for_symbol_p): New hook.
1449         * toplev.c (compile_file): Call output_object_blocks.
1450         (target_supports_section_anchors_p): New function.
1451         (process_options): Check that -fsection-anchors is only used on
1452         targets that support it and when -funit-at-a-time is in effect.
1453         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1454         if the decl doesn't have one.
1455         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1456         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1457         of force_const_mem through use_anchored_address.
1458         (expand_expr_constant): New function.
1459         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1460         calling expand_expr for INDIRECT_REF.
1461         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1462         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1463         * expr.h (use_anchored_address): Declare.
1464         * loop-unroll.c: Don't declare rtx vectors here.
1465         * explow.c: Include output.h.
1466         (validize_mem): Call use_anchored_address.
1467         (use_anchored_address): New function.
1468         * common.opt (-fsection-anchors): New switch.
1469         * varasm.c (object_block_htab, anchor_labelno): New variables.
1470         (hash_section, object_block_entry_eq, object_block_entry_hash)
1471         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1472         (use_blocks_for_decl_p, change_symbol_section): New functions.
1473         (get_variable_section): New function, split out from assemble_variable.
1474         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1475         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1476         symbol has already been created.
1477         (assemble_variable_contents): New function, split out from...
1478         (assemble_variable): ...here.  Don't output any code for
1479         block symbols; just pass them to place_block_symbol.
1480         Use get_variable_section and assemble_variable_contents.
1481         (get_constant_alignment, get_constant_section, get_constant_size): New
1482         functions, split from output_constant_def_contents.
1483         (build_constant_desc): Create a block symbol if use_object_blocks_p
1484         says so.  Or into SYMBOL_REF_FLAGS.
1485         (assemble_constant_contents): New function, split from...
1486         (output_constant_def_contents): ...here.  Don't output any code
1487         for block symbols; just pass them to place_section_symbol.
1488         Use get_constant_section and get_constant_alignment.
1489         (force_const_mem): Create a block symbol if use_object_blocks_p and
1490         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1491         (output_constant_pool_1): Add an explicit alignment argument.
1492         Don't switch sections here.
1493         (output_constant_pool): Adjust call to output_constant_pool_1.
1494         Switch sections here instead.  Don't output anything for block symbols;
1495         just pass them to place_block_symbol.
1496         (init_varasm_once): Initialize object_block_htab.
1497         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1498         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1499         (place_block_symbol, get_section_anchor, output_object_block)
1500         (output_object_block_htab, output_object_blocks): New functions.
1501         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1502         (TARGET_ASM_OUT): Include it.
1503         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1504         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1505         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1506         (TARGET_INITIALIZER): Include them.
1507         * rtl.c (rtl_check_failed_block_symbol): New function.
1508         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1509         (block_symbol, object_block): New structures.
1510         (rtx_def): Add a block_symbol field to the union.
1511         (BLOCK_SYMBOL_CHECK): New macro.
1512         (rtl_check_failed_block_symbol): Declare.
1513         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1514         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1515         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1516         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1517         * output.h (output_section_symbols): Declare.
1518         (object_block): Name structure.
1519         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1520         (default_use_anchors_for_symbol_p): Declare.
1521         * Makefile.in (RTL_BASE_H): Add vec.h.
1522         (explow.o): Depend on output.h.
1523         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1524         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1525         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1526         (rs6000_use_blocks_for_constant_p): New function.
1527
1528 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1529
1530         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1531
1532 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1533
1534         PR tree-opt/25680
1535         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1536         IMAGPART_EXPR.
1537
1538 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1539
1540         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1541         is_aliased.
1542         Update all users.
1543
1544 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1545
1546         PR middle-end/26334
1547         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1548         instead of DECL_REGISTER.
1549
1550 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1551
1552         PR ada/13408
1553         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1554
1555 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1556
1557         PR target/24837
1558         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1559         * opth-gen.awk: Handle Var and InverseMask together.
1560         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1561         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1562         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1563         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1564         used together.
1565         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1566         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1567         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1568         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1569         LINUX_DYNAMIC_LINKER): Define.
1570         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1571         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1572         TARGET_GLIBC.
1573         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1574         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1575         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1576         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1577         (TARGET_C99_FUNCTIONS): Don't define.
1578         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1579         GLIBC_DYNAMIC_LINKER.
1580         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1581         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1582         GLIBC_DYNAMIC_LINKER64): Define.
1583         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1584         LINUX_DYNAMIC_LINKER64.
1585         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1586         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1587         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1588         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1589         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1590         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1591         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1592         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1593         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1594         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1595         and LINUX_DYNAMIC_LINKER32.
1596         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1597         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1598         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1599         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1600         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1601         TARGET_GLIBC.
1602         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1603         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1604         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1605         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1606         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1607         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1608         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1609         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1610         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1611         LINUX_DYNAMIC_LINKER): Define.
1612         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1613         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1614         GLIBC_DYNAMIC_LINKER64): Define.
1615         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1616         LINUX_DYNAMIC_LINKER64.
1617         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1618         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1619         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1620         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1621         LINUX_DYNAMIC_LINKER): Define.
1622         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1623         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1624         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1625         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1626         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1627         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1628         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1629         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1630         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1631         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1632         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1633         * doc/invoke.texi (-muclibc): Remove caveat about supported
1634         targets.
1635
1636 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1637
1638         * doc/cpp.texi (__TIMESTAMP__): Document.
1639
1640 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1641
1642         PR middle-end/25600
1643         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1644         C is one less than the width of X (and related transformations).
1645         * simplify-rtx.c (simplify_unary_operation_1): Transform
1646         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1647         depending on STORE_FLAG_VALUE, were C is one less then the
1648         width of X.
1649
1650 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1651
1652         Fix PR tree-optimization/26341
1653         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1654         about NAME_MEMORY_TAG's.
1655
1656 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1657
1658         PR target/26255
1659         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1660         with hardware float support, and software float support.  Add fcpy
1661         alternative to hardware patterns.  Add alternatives to copy between
1662         general and floating-point registers to the 32-bit pattern.
1663         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1664         secondary reload to load a QI or HI mode constant into a floating
1665         point register.
1666         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1667         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1668
1669 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1670
1671         PR target/26272
1672         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1673         pc to the pattern.
1674         (load_macho_picbase_di): Likewise.
1675
1676 2006-02-16  Jeff Law  <law@redhat.com>
1677
1678         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1679         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1680         (ssa_name_nonzero_p): Likewise.
1681         (get_value_range): Return NULL if VRP is not running.
1682         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1683         VRP routines do not discover a range.
1684         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1685         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1686         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1687         (tree_expr_nonnegative_p): Similarly.
1688         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1689         (restore_nonzero_vars_to_original_value): Remove.
1690         (unsafe_associative_fp_binop): Remove.
1691         (tree_ssa_dominator_optimize): Remove initialization and
1692         finalization of nonzero_vars and nonzero_vars_stack.
1693         (dom_opt_initialize_block): No longer push marker on
1694         nonzero_vars_stack.
1695         (dom_opt_finalize_block): No longer call
1696         restore_nonzero_vars_to_original_value.
1697         (record_equivalences_from_phis): No longer look for
1698         nonzero PHI arguments.
1699         (cprop_into_successor_phis): No longer propagate nonzero
1700         property into PHI arguments.  Lose unused argument.  Caller
1701         updated.
1702         (record_equivalences_from_stmt): No longer record nonzero
1703         values for SSA_NAMEs.
1704         (lookup_avail_expr): No longer use nonzero_vars.
1705
1706         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1707         for sizetype when sizetype is unsigned.
1708
1709 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1710
1711         PR rtl-optimization/25603
1712         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1713         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1714         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1715         with new meaning of SETS.
1716
1717 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1718
1719         PR target/20353
1720         PR target/24578
1721         PR target/24837
1722         * config/linux.opt: New file.
1723         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1724         LINUX_DYNAMIC_LINKER): Define.
1725         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1726         * config.gcc (*-*-linux*): Define extra_options.
1727         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1728         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1729         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1730         GLIBC_DYNAMIC_LINKER.
1731         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1732         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1733         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1734         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1735         * doc/invoke.texi (GNU/Linux Options): New section.
1736
1737 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1738
1739         * config/sparc/sparc.md (setjmp): Rewrite.
1740         (setjmp_32): Delete.
1741         (setjmp_64): Likewise.
1742
1743 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1744
1745         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1746          previous change.
1747
1748 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1749
1750         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1751         read-write uses.
1752
1753 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1754
1755         PR rtl-optimization/26296
1756         * Makefile.in (loop-invariant.c): Add except.h dependency.
1757         * loop-invariant.c: Include except.h.
1758         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1759
1760 2005-02-16  Paul Brook  <paul@codesourcery.com>
1761
1762         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1763         for reloads.
1764
1765 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1766
1767         PR rtl-optimization/25636
1768         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1769         when deciding whether an insn is an initializing insn.
1770
1771 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1772
1773         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1774         (tree_code_size): Ditto.
1775         * tree.h (struct tree_memory_tag): Remove parent_var.
1776         (struct tree_struct_field_tag): New.
1777         (SFT_OFFSET): New.
1778         (SFT_SIZE): New.
1779         (union tree_node): Add sft member.
1780         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1781         specially here.
1782         (create_sft): Add size and offset argument, set SFT_OFFSET and
1783         SFT_SIZE.
1784         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1785         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1786         * tree-flow-inline.h (get_subvar_at): Update for
1787         SFT_OFFSET/SFT_SIZE.
1788         (var_can_have_subvars): Ditto.
1789         (overlap_subvar): Ditto.
1790         * print-tree.c (print_node): Print out interesting things for
1791         SFT's.
1792         * tree-flow.h (struct subvar): Remove offset and size members.
1793         * tree-ssa-operands.c (get_expr_operands): Update for
1794         get_indirect_ref_operands changes.
1795         (get_indirect_ref_operands): Call add_virtual_operand instead of
1796         add_stmt_operand.  Only recurse on base var if requested.
1797         (access_can_touch_variable): New function.
1798         (add_stmt_operand): Split virtual operand handling into ...
1799         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1800         arguments.  Prune alias sets.
1801         (add_call_clobber_ops): Call add_virtual_operand.
1802
1803 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1804
1805         PR middle-end/26300
1806         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1807
1808         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1809         than TREE_CODE as index into omp_clause_num_ops array.
1810
1811 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1812
1813         PR rtl-optimization/26184
1814         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1815         uses_of_defs.
1816         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1817         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1818         must_precede, must_follow and tobe_scheduled.
1819
1820         PR other/26147
1821         * opts.c (common_handle_option): Free new_option pointer.
1822         * df-core.c (df_analyze): Free postorder pointer.
1823
1824 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1825
1826         * Makefile.in: Fix the examples about the use of stamps
1827
1828 2006-02-15  Michael Matz  <matz@suse.de>
1829
1830         PR middle-end/22275
1831
1832         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1833         influenced by maximum_field_alignment or DECL_PACKED.
1834         (update_alignment_for_field): Ditto.
1835         (place_field): Ditto.
1836         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1837         this behaviour.
1838
1839 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1840
1841         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1842         (debug_flow_info): Pass it.
1843         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1844         * bb-reorder.c (reorder_basic_blocks): Likewise.
1845         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1846         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1847         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1848         * gcse.c (gcse_main, bypass_jumps): Likewise.
1849         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1850         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1851         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1852         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1853         * rtl.h (dump_flow_info): Adjust prototype.
1854         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1855         * var-tracking.c (variable_tracking_main): Likewise.
1856         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1857         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1858         options.
1859
1860 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1861
1862         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1863         construction.
1864
1865 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1866
1867         PR tree-optimization/26209
1868         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1869         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1870         eh edges.
1871         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1872
1873 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1874
1875         PR middle-end/23670
1876         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1877         (X,Y) and the corresponding symmetry related transformations.
1878         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1879         (X,Y) and its symmetry related transformations.
1880
1881 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1882
1883         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1884         and GEU.
1885
1886 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1887
1888         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1889
1890 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1891
1892         PR bootstrap/26053
1893         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1894         support COMDAT group.
1895         * configure: Regenerate.
1896
1897 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1898
1899         PR middle-end/26279
1900         PR middle-end/26280
1901         PR middle-end/26283
1902         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1903
1904 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1905
1906         Fix PR tree-optimization/26260
1907
1908         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1909         param.
1910         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1911         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1912         * tree-ssa-structalias.c (create_variable_info_for): Use
1913         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1914
1915 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1916
1917         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1918         Document.
1919         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1920         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1921         of the ending condition.
1922         * tree-ssa-loop-manip.c: Include params.h.
1923         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1924         tree_unroll_loop): New functions.
1925         * tree-pass.h (pass_loop_prefetch): Declare.
1926         * loop.c (rest_of_handle_loop_optimize): Test for
1927         -fprefetch-loop-arrays-rtl.
1928         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1929         * timevar.def (TV_TREE_PREFETCH): New timevar.
1930         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1931         pass_loop_prefetch): New.
1932         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1933         (cleanup_tree_cfg_loop): Call scev_reset.
1934         * common.opt (fprefetch-loop-arrays-rtl): Add.
1935         * tree-ssa-loop-prefetch.c: New file.
1936         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1937         (new_temp_expr_table): Initialize expr_vars.
1938         (free_temp_expr_table): Cleanup expr_vars.
1939         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1940         expressions from being merged into one.
1941         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1942         (struct tree_niter_desc): Add control, bound and cmp fields.
1943         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1944         Declare.
1945         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1946         (tree-cfgcleanup.o): Add SCEV_H dependency.
1947         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1948         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1949
1950 2006-02-14  Richard Guenther  <rguenther@suse.de>
1951
1952         PR tree-optimization/26258
1953         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1954         in PHI argument processing.
1955
1956 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1957
1958         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1959         new expression in the requested machine mode.
1960
1961 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1962
1963         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1964         directly, instead let do_compare_rtx_and_jump handle this for us.
1965         * expr.c (expand_expr_real_1): Likewise.
1966         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1967         before do_jump_by_parts_greater.
1968         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1969         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1970
1971 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1972
1973         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1974
1975 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1976
1977         PR rtl-optimization/26235
1978         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1979         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1980         format.
1981
1982 2006-02-13  Jeff Law  <law@redhat.com>
1983
1984         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1985         TRUTH_XOR_EPR.
1986
1987 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1988
1989         PR middle-end/26092
1990         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1991         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1992         first to verify it is still a builtin.
1993
1994 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1995
1996         * dwarf2out.c (base_type_die): Don't add AT_name here.
1997         (subrange_type_die): Don't add AT_name here.
1998         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1999
2000 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2001
2002         PR rtl-optimization/26247
2003         PR rtl-optimization/26248
2004         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2005
2006 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2007
2008         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2009         * config/fixtfdi.c: Likewise.
2010         * config/fixunstfdi.c: Likewise.
2011         * config/floatditf.c: Likewise.
2012
2013 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2014
2015         PR middle-end/24427
2016         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2017         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2018         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2019         (X&(C1&~C2))|C2.
2020         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2021
2022 2006-02-13  Josh Conner  <jconner@apple.com>
2023
2024         PR target/25376
2025         * varasm.c (function_section): Check for section name before
2026         calling select_section on targets that define
2027         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2028         unlikely_text_section instead of hot_function_section if
2029         first_function_block_is_cold.
2030
2031 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2032
2033         PR middle-end/25335
2034         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2035
2036 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2037
2038         PR rtl-optimization/26222
2039         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2040         after tree->rtl expansion.
2041         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2042         before passing it to emit_move_insn.
2043
2044 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2045
2046         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2047         default.
2048         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2049         Clarify documentation.
2050         * c-common.h (warn_write_strings): Remove.
2051         * c-common.c (warn_write_strings): Likewise.
2052         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2053         default for C++.
2054
2055 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2056
2057         PR middle-end/25724
2058         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2059         (do_jump_parts_zero_rtx): New function renamed from
2060         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2061         (do_jump_parts_equality_rtx): New function split out from
2062         do_jump_parts_equality.  Old implementation renamed as above.
2063         Call do_jump_parts_zero_rtx if either operand is zero.
2064         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2065         do all of the heavy lifting.
2066         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2067         calling either do_jump_by_parts_greater_rtx or
2068         do_jump_by_parts_equality_rtx.
2069         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2070         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2071         moved to do_compare_rtx_and_jump, call it directly.
2072         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2073         mode argument.  Call do_compare_rtx_and_jump.
2074         (emit_case_nodes): Update calls to do_jump_if_equal.
2075
2076 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2077
2078         PR rtl-optimization/26225
2079         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2080
2081 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2082
2083         PR rtl-optimization/26232
2084         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2085
2086 2006-02-11  Jason Merrill  <jason@redhat.com>
2087
2088         PR tree-opt/24365
2089         * tree-inline.c (declare_return_variable): Just don't use the
2090         modify target if it's a gimple complex reg and the return slot
2091         isn't.
2092
2093 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2094
2095         * doc/contrib.texi: Update my entry.
2096
2097 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2098
2099         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2100
2101 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2102
2103         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2104         expensive.
2105
2106 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2107
2108         * doc/invoke.texi (-floop-optimize2): Removed.
2109         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2110         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2111         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2112         * common.opt (floop-optimize2): Removed.
2113         (fmove-loop-invariants): Enabled by default.
2114
2115 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2116
2117         * tree-if-conv.c (combine_blocks): Free the result of
2118         get_loop_exit_edges.
2119
2120 2006-02-10  Jeff Law  <law@redhat.com>
2121
2122         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2123
2124         PR tree-optimization/26213
2125         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2126         loop trying to follow SSA_NAME_VALUE chains.
2127
2128 2006-02-10  Richard Guenther  <rguenther@suse.de>
2129
2130         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2131         deal with structures that end in implicitly variable sized arrays.
2132
2133 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2134
2135         PR rtl-optimization/24762
2136         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2137         eh edges.
2138
2139 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2140
2141         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2142         (struct ivopts_data): Add regs_used field.
2143         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2144         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2145         instead of loop_data->regs_used;
2146         (free_loop_data): Do not free aux fields for loops.
2147         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2148         and tree_ssa_iv_optimize_finalize.
2149
2150 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2151
2152         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2153
2154 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2155
2156         PR target/26141
2157         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2158         computing the effective result type.
2159
2160 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2161
2162         PR inline-asm/16194
2163         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2164         (tree_overlaps_hard_reg_set): Declare.
2165         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2166         type and signature to match function type expected by walk_tree.
2167         (tree_overlaps_hard_reg_set): New function.
2168         (decl_conflicts_with_clobbers_p): Rename to:
2169         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2170         Use tree_overlaps_hard_reg_set.  Changed caller.
2171         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2172         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2173         * cris.c (cris_md_asm_clobbers): Likewise.
2174
2175 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2176
2177         * reload1.c (emit_input_reload_insns): Delete code that tries to
2178         inherit using find_equiv_reg.
2179
2180 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2181
2182         * c-common.h (flag_const_strings): Don't declare.
2183         * c-common.c (flag_const_strings): Remove.
2184         * c.opt (fconst_strings): Remove.
2185         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2186         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2187         (c_common_init_options): Don't set flag_const_strings.
2188         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2189
2190 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2191
2192         * arm.md (tlobits_cbranch): New pattern.
2193         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2194         testing a single bit.
2195
2196 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2197
2198         PR tree-opt/26179
2199         * tree-ssa-pre.c (create_component_ref_by_pieces):
2200         Handle RETURN_DECL like VAR_DECL.
2201
2202 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2203
2204         PR middle-end/26134
2205         * fold-const.c (fold_indirect_ref_1): Fold
2206         "*(foo *)&complexfoo" to "__real__ complexfoo"
2207         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2208
2209 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2210
2211         * tree-flow-inline.h (var_can_have_subvars):
2212         Volatile variables should not have subvariables.
2213
2214 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2215
2216         PR 26180
2217         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2218         multiplying unsigned values.
2219         Tidy comments.
2220
2221 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2222
2223         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2224
2225 2006-02-08  Jason Merrill  <jason@redhat.com>
2226
2227         PR c++/25979
2228         * tree.def: Elaborate on difference from MODIFY_EXPR.
2229         * doc/c-tree.texi (INIT_EXPR): Likewise.
2230         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2231         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2232         (gimplify_target_expr): Likewise.
2233         (gimplify_cond_expr): Remove target handling.
2234         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2235         (gimplify_expr): Clobber it here.
2236         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2237         Do return slot optimization if we have an INIT_EXPR.
2238
2239         PR tree-opt/24365
2240         * tree-inline.c (declare_return_variable): Also clear
2241         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2242
2243         PR c++/16405
2244         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2245
2246         PR middle-end/22439
2247         * gimplify.c (gimplify_one_sizepos): Fix typo.
2248
2249 2006-02-08  Jeff Law  <law@redhat.com>
2250
2251         PR tree-optimization/21417
2252         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2253         across a backedge if the control statement at the end of the
2254         block is data dependent on other statements in the same block.
2255         (record_temporary_equivalences_from_stmts): Remove over-conservative
2256         test for threading across backedges.
2257
2258         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2259         control statement, handle all three special cases in the same
2260         manner as they all have the same desired solution.  No longer
2261         special case edge flag updating when the post dominator is
2262         the exit block.
2263
2264 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2265
2266         * tree.def (CHAR_TYPE): Remove.
2267         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2268         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2269         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2270         (gen_string_type_die): Delete unreachable function.
2271
2272         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2273         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2274         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2275         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2276         * builtins.c (type_to_class): Likewise.
2277         * fold-const.c (fold_convert, build_range_check,
2278         merge_ranges): Likewise.
2279         * expr.c (count_type_elements): Likewise.
2280         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2281         * stor-layout.c (layout_type): Likewise.
2282         * ipa-type-escape.c (type_to_consider): Likewise.
2283         * gimplify.c (omp_firstprivatize_type_sizes,
2284         gimplify_type_sizes): Likewise.
2285         * explow.c (promote_mode): Likewise.
2286         * tree-sra.c (is_sra_scalar_type): Likewise.
2287         * varasm.c (output_constant): Likewise.
2288         * tree-inline.c (remap_type_1): Likewise.
2289         * convert.c (convert_to_pointer, convert_to_real,
2290         convert_to_integer, convert_to_complex): Likewise.
2291
2292 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2293
2294         * df-scan.c (df_def_record_1): A set destination may
2295         be a parallel regardless of mode.
2296
2297 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2298
2299         PR target/22209
2300         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2301         * config/mips/_tilib.c: Remove.
2302         * config/fixtfdi.c: New libgcc source file.
2303         * config/fixunstfdi.c: New source file.
2304         * config/floatditf.c: New source file.
2305         * config/floatunditf.c: New souce file.
2306         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2307         files above instead of config/mips/_tilib.c.
2308         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2309
2310 2006-02-08  Jeff Law  <law@redhat.com>
2311
2312         PR tree-optimization/26169
2313         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2314         threading jumps.
2315
2316 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2317
2318         * df.h (DF_REG_SIZE): Return the length of the initialized
2319         part of the array.
2320
2321 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2322
2323         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2324         __muldf3): Return a correctly signed zero.
2325
2326 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2327
2328         * passes.c (register_one_dump_file): Accept the current properties
2329         instead of pass number.  Adjust call to dump_register.  Remove
2330         duplicated code.
2331         (register_dump_files): Now a wrapper around...
2332         (register_dump_files_1): ... this one.  Do not modify the pass
2333         structure.
2334         (next_pass_1): Cosmetic fix.
2335         (execute_todo): Keep second parameter only.  Use curr_properties
2336         instead of fetching it from the pass structure.  Check and set
2337         last_verified.
2338         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2339         instead of fetching it from the pass structure.  Fix calls to
2340         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2341         after running the pass.  Reset last_verified.
2342         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2343         at the beginning.
2344         (FIRST_AUTO_NUMBERED_DUMP): New.
2345         (dump_register): Remove "num" parameter, assign it within the
2346         function.
2347         (get_dump_file_name): Modify template for dumps.
2348         * tree-dump.h (dump_register): Adjust prototype.
2349         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2350         (PROP_trees): Add PROP_gimple_lomp.
2351         (TODO_set_props): New.
2352         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2353         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2354         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2355
2356 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2357
2358         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2359         (sparc64-*-linux*): Likewise.
2360         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2361         * config/sparc/t-linux: New file.
2362         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2363         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2364         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2365         -m32 -mlong-double-128.
2366
2367         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2368         * config/alpha/t-linux: New file.
2369         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2370
2371         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2372         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2373         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2374         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2375         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2376         (CPP_ARCH32_SPEC): Remove.
2377
2378 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2379
2380         PR tree-optimization/26145
2381         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2382         bbs pointer.
2383
2384 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2385
2386         PR target/26109
2387         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2388         >= 240000 when generating code for SOM runtime.
2389         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2390         to $$dyncall when generating code for SOM runtime..
2391
2392 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2393
2394         PR c++/18150
2395         * doc/invoke.texi (-Wsequence-point): Update documentation
2396         that -Wsequence-point is implemented for C++ as well.
2397
2398 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2399
2400         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2401         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2402         (LIB_SPEC): Likewise.
2403         * doc/invoke.texi (SPARC options): Document -pthread.
2404
2405 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2406
2407         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2408         PIC addresses.
2409
2410 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2411
2412         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2413         Correct comment describing BOOLEAN_TYPE.
2414
2415 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2416
2417         * c.opt: C++ frontend supports -Wdiv-by-zero.
2418         * c-opts.c (c_common_handle_option): Remove dead case.
2419
2420 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2421
2422         * configure.ac (TLS assembler check): Do not enable TLS by
2423         default on SPARC/Solaris before version 10.
2424         * configure: Regenerate.
2425
2426 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2427
2428         * doc/invoke.texi (xl-compat): Document conversion and support
2429         routine names.
2430
2431 2006-02-07  Jeff Law  <law@redhat.com>
2432
2433         * tree-vrp.c (find_conditional_asserts): Update comments.
2434         (simplify_stmt_for_jump_threading): New.
2435         (identify_jump_threads, finalize_jump_threads): New.
2436         (vrp_finalize): Call identify_jump_threads.
2437         (execute_vrp): Call finalize_jump_threads.
2438         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2439         (vrp_element, vrp_data, vrp_element_p): Remove.
2440         (vrp_hash_elt, vrp_variables_stack): Remove.
2441         (vrp_hash, vrp_eq, record_range): Remove.
2442         (simplify_cond_and_lookup_avail_expr): Remove.
2443         (extract_range_from_cond): Remove.
2444         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2445         (simplify_stmt_for_jump_threading): New.
2446         (dom_thread_across_edge): New wrapper.
2447         (tree_ssa_dominator_optimize): No longer initialize or
2448         finalize any of the VRP datastructures.  Remove iteration
2449         step and simplify as a result of removal of iteration step.
2450         (pass_dominator): Perform a cfg cleanup after DOM.
2451         (dom_opt_finalize_block): Use the new common routines
2452         for threading jumps.  Simplify stack management slightly.
2453         No longer need to unwind VRP state.
2454         (record_equivalences_from_incoming_edge): No longer record
2455         VRP information.
2456         (eliminate_redundant_computations): No longer call
2457         simplify_cond_and_lookup_avail_expr.
2458         * tree-flow.h (potentially_threadable_block): Prototype.
2459         (thread_across_edge): Likewise.
2460         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2461         (tree-ssa-threadedge.o): Add dependencies.
2462         * tree-ssa-threadedge.c: New file.
2463         * passes.c (init_optimization_passes): Merge PHIs before
2464         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2465
2466 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2467
2468         * df-core.c (df_set_blocks): Do not dereference function pointers.
2469         (df_finish1): Likewise.
2470         (df_hybrid_search_forward): Likewise.
2471         (df_hybrid_search_backward): Likewise.
2472         (df_iterative_dataflow): Likewise.
2473         (df_analyze_problem): Likewise.
2474         (df_compact_blocks): Likewise.
2475         (df_dump): Likewise.
2476         * df-scan.c (df_rescan_blocks): Likewise.
2477         (df_record_entry_block_defs): Likewise.
2478
2479         * genconditions.c (write_conditions): Guard the definition of
2480         'insn_conditions' with the check on GCC version.
2481         (write_writer): Guard the traversal 'insn_conditions' with
2482         the check on GCC version.
2483
2484 2006-02-07  Richard Guenther  <rguenther@suse.de>
2485
2486         PR c++/26140
2487         Revert
2488         2006-01-30  Richard Guenther  <rguenther@suse.de>
2489         PR c++/23372
2490         * gimplify.c (gimplify_target_expr): Handle easy cases
2491         without creating a temporary.
2492
2493 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2494
2495         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2496         use of float in probability computations.  Use edge probabilities
2497         in place of statically computed probabilities.
2498         (min_spec_prob): New static variable.
2499         (schedule_insns): Initialize it.
2500         (GET_SRC_PROB): Removed.
2501         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2502
2503 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2504
2505         PR debug/24444
2506         * config/ia64/unwind-ia64.c: Revert last change.
2507         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2508         (INCOMING_FRAME_SP_OFFSET): Define.
2509
2510 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2511
2512         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2513
2514 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2515
2516         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2517         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2518         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2519         (ix86_return_in_memory): Handle TDmode.
2520         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2521         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2522
2523 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2524
2525         * reorg.c (dbr_schedule): Use dump_file instead of file.
2526
2527 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2528
2529         PR target/25917
2530         * config/ia64/predicates.md (extr_len_operand): New predicate.
2531         * config/ia64/ia64.md (extv): Tighten constraints.
2532         (extzv): Ditto.
2533         (*tbit_and_2): Ditto.
2534         (*tbit_and_3): Ditto.
2535         (*tbit_or_2): Ditto.
2536         (*tbit_or_3): Ditto.
2537         (*bit_zero): Ditto.
2538         (*bit_one): Ditto.
2539
2540 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2541
2542         PR target/23359
2543         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2544
2545 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2546
2547         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2548         loop_optimizer_init and loop_optimizer_finalize
2549         * tree-ssa-sink.c (execute_sink_code): Ditto.
2550         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2551         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2552         tree_ssa_loop_done): Ditto.
2553         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2554         * sched-ebb.c: Include output.h.
2555         (schedule_ebbs): Do not use dump argument.
2556         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2557         * loop.c (loop_dump_stream): Removed.
2558         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2559         argument.
2560         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2561         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2562         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2563         loop_iterations, strength_reduce, record_biv, record_giv,
2564         final_giv_value, check_final_value, check_ext_dependent_givs,
2565         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2566         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2567         dump_file instead of loop_dump_stream.
2568         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2569         argument dump_file.
2570         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2571         dump argument.
2572         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2573         * haifa-sched.c: Include output.h
2574         (schedule_insns, sched_init): Do not use dump argument.
2575         * mode-switching.c (optimize_mode_switching): Ditto.
2576         * modulo-sched.c (stats_file): Removed.
2577         (print_node_sched_params): Do not call argument dump_file.
2578         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2579         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2580         of stats_file.
2581         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2582         use dump argument.
2583         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2584         rtl_loop_init, rtl_loop_done): Ditto.
2585         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2586         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2587         Ditto.
2588         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2589         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2590         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2591         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2592         * emit-rtl.c (renumber_insns): Ditto.
2593         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2594         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2595         * regclass.c (regclass): Ditto.
2596         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2597         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2598         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2599         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2600         Ditto.
2601         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2602         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2603         to regclass.
2604         * gcse.c (gcse_file, debug_stderr): Removed.
2605         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2606         rest_of_handle_gcse): Do not use dump argument.
2607         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2608         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2609         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2610         compute_code_hoist_vbeinout, compute_code_hoist_data,
2611         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2612         compute_store_table, build_store_vectors, insert_insn_start_bb,
2613         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2614         store_motion): Use dump_file instead of gcse_file.
2615         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2616         * profile.c (profile_dump_file): Removed.
2617         (branch_prob): Use dump_file instead of profile_dump_file.
2618         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2619         dump_file.
2620         * tree-ssa-copy.c (dump_copy_of): Ditto.
2621         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2622         dump file to life_analysis.
2623         * bt-load.c (branch_target_load_optimize): Ditto.
2624         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2625         renumber_insns.
2626         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2627         regclass, dbr_schedule): Declaration changed.
2628         * sched-int.h (sched_init): Declaration changed.
2629         * tree-profile.c (tree_profile_dump_file): Removed.
2630         (tree_profile_hooks): Removed profile_dump_file hook.
2631         * rtl-profile (rtl_profile_dump_file): Removed.
2632         (rtl_profile_hooks): emoved profile_dump_file hook.
2633         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2634         changed.
2635         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2636         * tree-cfg.c (build_tree_cfg): Ditto.
2637         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2638         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2639         Declaration changed.
2640         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2641         life_analysis and schedule_insns.
2642         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2643         life_analysis.
2644         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2645         dbr_schedule.
2646         * config/mips/mips.c (mips_reorg): Ditto.
2647         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2648         schedule_ebbs.
2649
2650 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2651
2652         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2653         (s390_mangle_fundamental_type): New.
2654         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2655         Define.
2656
2657         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2658         (alpha_mangle_fundamental_type): New.
2659         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2660         Define.
2661
2662         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2663         Define.
2664         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2665         Define.
2666         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2667         (sparc_mangle_fundamental_type): New.
2668
2669 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2670
2671         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2672         (s390x-*-linux*): Likewise.
2673         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2674         * config/s390/t-linux: New file.
2675
2676 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2677
2678         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2679         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2680
2681 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2682
2683         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2684         (ANTIC_SAFE_LOADS): New macro.
2685         (find_or_generate_expression): Add prototype.
2686         (set_contains_value): Allow null set for sake of not always having
2687         to allocate ANTIC_SAFE_LOADS.
2688         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2689         Allow COMPONENT_REF too.
2690         (valid_in_set): Allow COMPONENT_REF.
2691         Check ANTIC_SAFE_LOADS too.
2692         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2693         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2694         rename.
2695         (can_PRE_operation): Add COMPONENT_REF.
2696         (create_component_ref_by_pieces): New function.
2697         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2698         (insert_aux): Move AGGREGATE_TYPE_P check here.
2699         (compute_avail): Set bb local stmt uids.
2700         (pass_pre): Use TODO_update_ssa_only_virtuals.
2701
2702 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2703
2704         * configure.ac: Unconditionally disable decimal float by default.
2705         * configure: Regenerate.
2706
2707 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2708
2709         * read-rtl.c (read_name): Terminate reading on EOF.
2710
2711 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2712
2713         * dfp.c (decimal_real_arithmetic): Change second argument type
2714         from int to enum tree_code. Do not always return true, but now
2715         return result of any call to decimal_do helper functions.
2716         * dfp.h (decimal_real_arithmetic): Update prototype.
2717
2718 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2719
2720         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2721
2722 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2723
2724         PR tree-opt/25251
2725         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2726         forced labels.
2727
2728 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2729
2730         * tree-vrp.c (cfg_loops): Removed.
2731         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2732         Use current_loops instead of cfg_loops.  Pass flags to
2733         loop_optimizer_init.
2734         * cfgloopmanip.c (fix_loop_structure): Update only available
2735         information.
2736         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2737         loop_optimizer_init.
2738         * modulo-sched.c (build_loops_structure): Removed.
2739         (sms_schedule): Use loop_optimizer_init.
2740         * loop-init.c (loop_optimizer_init): Use flags to determine
2741         which properties of loops to prepare.
2742         (rtl_loop_init): Pass flags to loop_optimizer_init.
2743         * tree-ssa-sink.c (execute_sink_code): Ditto.
2744         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2745         * tree-ssa-pre.c (init_pre): Ditto.
2746         * cfgloop.h (LOOPS_NORMAL): New.
2747         (loop_optimizer_init): Declaration changed.
2748
2749 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2750
2751         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2752         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2753         pa/t-pa.
2754         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2755         pa/t-pa.
2756         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2757         pa/x-ada.
2758         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2759         * pa/t-pa64: Delete quadlib.c rule.
2760         * pa/x-ada: Revert last change.
2761         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2762
2763 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2764
2765         PR rtl-optimization/26087
2766         * rtlanal.c (canonicalize_condition): Do not cross basic block
2767         boundaries.
2768
2769 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2770
2771         PR debug/24444
2772         * config/ia64/ia64.c: Include debug.h.
2773         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2774         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2775         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2776         (process_epilogue, process_set, process_for_unwind_directive):
2777         Output unwind info only if requested.  Add CFA info if requested.
2778         Add new arguments as needed.  Adjust callers.
2779         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2780         incorrect default.
2781         (DWARF2_FRAME_INFO): Define to zero.
2782         * config/ia64/unwind-ia64.c: Remove code that compensated for
2783         the CFA offset error fixed above.
2784         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2785         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2786         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2787         -funwind-tables and -fexceptions to enable frame info.
2788         (dwarf2out_frame_init): Define initial CFA even if
2789         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2790         DWARF2_UNWIND_INFO is nonzero, not just defined.
2791         (dwarf2out_frame_finish): Output non-EH call frame info only
2792         if DWARF2_FRAME_INFO is nonzero.
2793         (convert_cfa_to_loc_list,
2794         compute_frame_pointer_to_cfa_displacement): Define even if
2795         unwind info is not supported.
2796         (gen_subprogram_die): Use the above unconditionally.  Remove
2797         legacy alternate code.
2798         * toplev.c (compile_file): Compile in call to
2799         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2800         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2801
2802 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2803             Jakub Jelinek  <jakub@redhat.com>
2804
2805         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2806         IBM extended float format long double as "g" on powerpc*-linux.
2807
2808 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2809
2810         PR target/25926
2811         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2812         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2813
2814 2006-02-03  Jason Merrill  <jason@redhat.com>
2815
2816         PR c++/25979
2817         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2818
2819         PR middle-end/25977
2820         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2821         on the return slot if it's an NRV.
2822
2823 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2824
2825         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2826         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2827         rewrite_use): Do not handle USE_OUTER.
2828         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2829         add_iv_outer_candidates, may_replace_final_value,
2830         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2831         (find_interesting_uses_op): Functionality of
2832         find_interesting_uses_outer_or_nonlin moved here.
2833         (find_interesting_uses_outside): Use find_interesting_uses_op.
2834
2835 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2836
2837         PR target/25960
2838         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2839
2840 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2841             Ulrich Weigand  <uweigand@de.ibm.com>
2842
2843         PR target/25864
2844         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2845         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2846         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2847         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2848         and dxr fields.
2849         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2850         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2851         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2852         Define secondary reloads for TFmode moves.
2853         (constant_modes): Add TFmode.
2854         (NR_C_MODES): Set to 8.
2855         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2856         builtin define.
2857         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2858         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2859         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2860         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2861         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2862         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2863         (FPR mode macro): Add TFmode.
2864         (DSF mode macro): New.
2865         (<de>, <dee> mode attributes): Removed.
2866         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2867         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2868         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2869         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2870         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2871         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2872         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2873         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2874         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2875         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2876         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2877         "*negabs<mode>2", "sqrt<mode>2"):
2878         Changed <de> to <xde>. R constraint replaced by <Rf>.
2879         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2880         <Rf>.
2881         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2882         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2883         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2884         splitters.
2885         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2886         "extenddftf2", "extendsftf2"): New expanders.
2887         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2888         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2889         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2890         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2891         New options.
2892         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2893         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2894         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2895         __floatditf): Add a GCC_4.1.0 symbol version tag.
2896         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2897         the new options.
2898
2899 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2900
2901         PR target/25377
2902         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2903         Use targetm.binds_local_p instead of TREE_PUBLIC.
2904
2905 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2906
2907         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2908         on INTEGER_TYPEs to indicate that it denotes a character type.
2909         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2910         signed_char_type_node, unsigned_char_type_node and char_type_node.
2911         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2912         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2913         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2914
2915 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2916             Daniel Berlin  <dberlin@dberlin.org>
2917
2918         * tree-tailcall.c (arg_needs_copy_p): New function.
2919         (eliminate_tail_call): Use arg_needs_copy_p.
2920         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2921         (add_virtual_phis): New function.
2922
2923 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2924
2925         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2926         #ignore instead of #scratch for %g7 .register directive.
2927
2928 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2929
2930         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2931         object files.
2932
2933 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2934
2935         * flow.c (calculate_global_regs_live): Assert that there aren't any
2936         EDGE_FAKE edges.
2937
2938 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2939
2940         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2941         what its name says.
2942         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2943         bsi_after_labels iterator.
2944         * tree-if-conv.c (find_phi_replacement_condition,
2945         replace_phi_with_cond_modify_expr): Likewise.
2946         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2947         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2948
2949 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2950
2951         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2952
2953 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2954
2955         PR 25990
2956         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2957         array after growing it.
2958
2959 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2960
2961         PR middle-end/24901
2962         * fold-const.c (fold_checksum_tree): Change type of buf.
2963
2964 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2965
2966         * reload.c (push_secondary_reload): Initialize t_icode.
2967
2968 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2969
2970         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2971         -msoft-float -mlong-double-128 only issue a warning, but don't
2972         swich to DFmode long double.
2973
2974 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2975
2976         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2977         has a constant equivalent, iterate over equivalents for arg0,
2978         calling simplify_relational_operation and if there's a result
2979         cheaper than X, apply fold_rtx and return the result.
2980
2981 2006-02-01  Jan Hubicka  <jh@suse.cz>
2982
2983         * opts.c (no_unit_at_a_time_default): New global variable.
2984         (decode_options): Use it.
2985         * opts.h (no_unit_at_a_time_default): Declare.
2986
2987 2006-02-01  Paul Brook  <paul@codesourcery.com>
2988
2989         * function.c (assign_parm_setup_reg): Use function argument promotion
2990         rules.
2991         * expr.c (expand_expr_real_1): Use function argument promotion rules
2992         for PARM_DECLs.
2993
2994 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2995
2996         * gcc.c (process_command): Change j to 'unsigned int'.
2997
2998 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2999
3000         PR middle-end/26001
3001         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3002         Use the corrected index for the character
3003         out of the string constant.
3004
3005 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3006
3007         * mode-switching.c (optimize_mode_switching): Fix size
3008         allocated for bb_info[n_entities].
3009
3010 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3011
3012         * gcc.c (main): Correct type that is allocated for
3013         explicit_link_files.
3014
3015 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3016
3017         * config/s390/s390.c (init_alignment_context): Set
3018         ALIAS_SET_MEMORY_BARRIER on the MEM.
3019         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3020
3021 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3022
3023         PR middle-end/25933
3024         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3025         dom_bbs pointer.
3026         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3027         call to tpa_init.
3028
3029 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3030
3031         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3032         * regrename.c: Ditto.
3033         * tree-ssa-loop-im.c: Ditto.
3034         * tree-dump.c: Ditto.
3035         * tree-complex.c: Ditto.
3036         * genrecog.c: Ditto.
3037         * tree-ssa-threadupdate.c: Ditto.
3038         * tracer.c: Ditto.
3039         * java/class.c: Ditto.
3040         * java/jcf-parse.c: Ditto.
3041         * java/resource.c: Ditto.
3042         * java/except.c: Ditto.
3043         * java/jvspec.c: Ditto.
3044         * java/jcf-write.c: Ditto.
3045         * java/jcf-path.c: Ditto.
3046         * java/gjavah.c: Ditto.
3047         * java/zextract.c: Ditto.
3048         * java/jcf-io.c: Ditto.
3049         * java/jcf.h: Ditto.
3050         * java/buffer.c: Ditto.
3051         * java/lang.c: Ditto.
3052         * java/parse-scan.y: Ditto.
3053         * java/lex.c: Ditto.
3054         * java/lex.h: Ditto.
3055         * cfgloopmanip.c: Ditto.
3056         * postreload-gcse.c: Ditto.
3057         * tree-ssa-loop-manip.c: Ditto.
3058         * postreload.c: Ditto.
3059         * tree-ssa-loop-ch.c: Ditto.
3060         * loop.c: Ditto.
3061         * ipa-cp.c: Ditto.
3062         * cppspec.c: Ditto.
3063         * diagnostic.c: Ditto.
3064         * final.c: Ditto.
3065         * genoutput.c: Ditto.
3066         * gcc.c: Ditto.
3067         * cfghooks.c: Ditto.
3068         * cfgloopanal.c: Ditto.
3069         * objc/objc-act.c: Ditto.
3070         * gcov.c: Ditto.
3071         * genextract.c: Ditto.
3072         * genautomata.c: Ditto.
3073         * pretty-print.c: Ditto.
3074         * genemit.c: Ditto.
3075         * cgraphunit.c: Ditto.
3076         * flow.c: Ditto.
3077         * df-scan.c: Ditto.
3078         * haifa-sched.c: Ditto.
3079         * dominance.c: Ditto.
3080         * dbxout.c: Ditto.
3081         * tree-ssa-loop-ivopts.c: Ditto.
3082         * df-core.c: Ditto.
3083         * mode-switching.c: Ditto.
3084         * modulo-sched.c: Ditto.
3085         * graph.c: Ditto.
3086         * ipa-pure-const.c: Ditto.
3087         * cse.c: Ditto.
3088         * fix-header.c: Ditto.
3089         * web.c: Ditto.
3090         * tree-stdarg.c: Ditto.
3091         * ipa-utils.c: Ditto.
3092         * loop-init.c: Ditto.
3093         * ipa-inline.c: Ditto.
3094         * cfganal.c: Ditto.
3095         * global.c: Ditto.
3096         * alloc-pool.c: Ditto.
3097         * dwarf2out.c: Ditto.
3098         * opts.c: Ditto.
3099         * genattrtab.c: Ditto.
3100         * tree-ssa-loop-ivcanon.c: Ditto.
3101         * predict.c: Ditto.
3102         * timevar.c: Ditto.
3103         * lcm.c: Ditto.
3104         * fortran/gfortranspec.c: Ditto.
3105         * regmove.c: Ditto.
3106         * local-alloc.c: Ditto.
3107         * langhooks.c: Ditto.
3108         * function.c: Ditto.
3109         * tree-vectorizer.c: Ditto.
3110         * gcse.c: Ditto.
3111         * ipa-type-escape.c: Ditto.
3112         * alias.c: Ditto.
3113         * tree-if-conv.c: Ditto.
3114         * profile.c: Ditto.
3115         * ipa.c: Ditto.
3116         * tree-data-ref.c: Ditto.
3117         * loop-unroll.c: Ditto.
3118         * treelang/treetree.c: Ditto.
3119         * calls.c: Ditto.
3120         * bt-load.c: Ditto.
3121         * ggc-common.c: Ditto.
3122         * except.c: Ditto.
3123         * coverage.c: Ditto.
3124         * cselib.c: Ditto.
3125         * tree-cfgcleanup.c: Ditto.
3126         * tree-ssa-pre.c: Ditto.
3127         * cfgcleanup.c: Ditto.
3128         * loop-invariant.c: Ditto.
3129         * loop-iv.c: Ditto.
3130         * ipa-prop.c: Ditto.
3131         * print-tree.c: Ditto.
3132         * conflict.c: Ditto.
3133         * ggc-page.c: Ditto.
3134         * sched-deps.c: Ditto.
3135         * regclass.c: Ditto.
3136         * tree-object-size.c: Ditto.
3137         * combine.c: Ditto.
3138         * bb-reorder.c: Ditto.
3139         * resource.c: Ditto.
3140         * var-tracking.c: Ditto.
3141         * cfgloop.c: Ditto.
3142         * df-problems.c: Ditto.
3143         * reg-stack.c: Ditto.
3144         * tlink.c: Ditto.
3145         * gccspec.c: Ditto.
3146         * sched-rgn.c: Ditto.
3147         * tree-ssa-structalias.c: Ditto.
3148         * tree-ssa-reassoc.c: Ditto.
3149         * config/darwin-c.c: Ditto.
3150         * config/darwin.c: Ditto.
3151         * config/arm/arm.c: Ditto.
3152         * cfgrtl.c: Ditto.
3153         * collect2.c: Ditto.
3154         * reload1.c: Ditto.
3155
3156 2006-01-31  Nicolas Pitre  <nico@cam.org>
3157
3158         * arm.md (smaxsi3): Make aware of smax_m1.
3159         (smax_m1): New.
3160
3161 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3162
3163         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3164
3165 2006-01-31  Richard Guenther  <rguenther@suse.de>
3166
3167         * doc/invoke.texi (-msselibm): Document.
3168         * target.h (expand_library_builtin): New target hook.
3169         * builtins.c (expand_builtin): Use expand_library_builtin.
3170         (default_expand_library_builtin): New function.
3171         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3172         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3173         (link_gcc_math_spec): Declare.
3174         (static_specs): Add link_gcc_math_spec.
3175         * expr.h (default_expand_library_builtin): Declare.
3176         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3177         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3178         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3179         * config/i386/i386.opt (msselibm): New target option.
3180         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3181         (ix86_init_sse_abi_builtins): New function.
3182         (ix86_expand_library_builtin): Likewise.
3183         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3184         (override_options): Handle error conditions wrt -msselibm.
3185         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3186         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3187         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3188         builtins.
3189
3190 2006-01-31  Richard Guenther  <rguenther@suse.de>
3191         Paolo Bonzini  <bonzini@gnu.org>
3192
3193         * doc/install.texi (--disable-libgcc-math): Document.
3194
3195 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3196
3197         * expr.h (expand_normal): new inline function.
3198         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3199         * dojump.c: use it.
3200         * dwarf2out.c: use it.
3201         * expr.c: use it.
3202         * calls.c: use it.
3203         * expmed.c: use it.
3204         * except.c: use it.
3205         * config/sparc/sparc.c: use it.
3206         * config/i386/i386.c: use it.
3207         * config/rs6000/rs6000.c: use it.
3208         * config/arm/arm.c: use it.
3209         * config/mips/mips.c: use it.
3210         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3211
3212 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3213
3214         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3215         argv to the appropriate type.
3216
3217 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3218
3219         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3220         unreachable code.
3221
3222 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3223
3224         PR target/26018
3225         * config/s390/s390.c (struct machine_function): New flag
3226         decomposed_literal_pool_addresses_ok_p.
3227         (s390_reorg): Set it before final stage of literal pool transforms.
3228         (s390_decompose_address): Only accept displacements of the form
3229         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3230
3231 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3232
3233         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3234         the comparison routine return.
3235
3236 2006-01-30  Michael Matz  <matz@suse.de>
3237
3238         * global.c (find_reg): Only evict for global regs.
3239         Take n_refs into account and dump more info.
3240
3241 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3242
3243         PR target/14798:
3244         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3245         (pragma_trap, pragma_nosave_low_regs): Likewise.
3246         (current_function_anonymous_args): Likewise.
3247         (sh_deferred_function_attributes): New variable.
3248         (sh_deferred_function_attributes_tail): Likewise.
3249         (print_operand): For '@', look up trap_exit attribute.
3250         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3251         handlers, save/restore fpscr, but don't do any other
3252         interrupt-specific saves.
3253         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3254         Fix check for partially saved registers to check for SHmedia.
3255         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3256         (sh_output_function_epilogue): Don't clear any of the removed
3257         variables.
3258         (sh_insert_attributes): Don't check pragma_interrupt.
3259         Insert deferred attributes.  Check that interrupt attribute is
3260         present for other attributes that require its presence.
3261         (sh_attribute_table): Add new attributes trapa_handler and
3262         nosave_low_regs.
3263         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3264         Don't check for pragma_interrupt.  Don't store argument.
3265         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3266         (sh_deferred_function_attributes): Declare.
3267         (sh_deferred_function_attributes_tail): Likewise.
3268         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3269         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3270         (*return_i): Don't use when trap_exit attribute is in effect.
3271         (*return_trapa): New insn pattern.
3272         * sh-c.c: New file.
3273         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3274         setting c_target_objs and cxx_target_objs.
3275         * t-sh: Add rule for sh-c.o.
3276
3277 2006-01-30  Richard Guenther  <rguenther@suse.de>
3278
3279         PR c++/23372
3280         * gimplify.c (gimplify_target_expr): Handle easy cases
3281         without creating a temporary.
3282
3283 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3284
3285         * vec.h (safe_grow): Remove duplicated line.
3286
3287 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3288
3289         PR 25874
3290         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3291         (expand_omp): ... here.
3292         (expand_omp_parallel): Only remove barriers for combined
3293         parallel+workshare constructs.
3294
3295 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3296
3297         Revert
3298
3299         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3300         * tree.c (build_qualified_type): Chain the new type to the original
3301         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3302         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3303         (build_pointer_type_for_mode): Only return unqualified types.
3304         (build_reference_type_for_mode): Likewise.
3305
3306 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3307
3308         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3309         * Makefile.in (CXX_COMPAT_WARN): Define.
3310         * configure: Regenerate.
3311
3312 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3313
3314         PR tree-opt/25911
3315         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3316         to an if check.
3317
3318 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3319
3320         * toplev.c: Fix thinko.
3321
3322 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3323             Marcin Dalecki  <martin@dalecki.de>
3324
3325         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3326         (push_srcloc): Use XNEW.
3327         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3328
3329 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3330
3331         * df-core.c (df_set_blocks): Deleted all variable.
3332
3333 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3334
3335         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3336         cgraph_output_pending_asms.
3337
3338 2006-01-28  Zack Weinberg  <zackw@panix.com>
3339
3340         * c.opt: Add -W(no-)overlength-strings.
3341         * doc/invoke.texi: Document it.
3342         * c-opts.c (c_common_handle_option): -pedantic implies
3343         -Woverlength-strings, if not explicitly disabled already.
3344         (c_common_post_options): -Woverlength-strings defaults to off, and
3345         is always off for C++.
3346         * c-common.c (fix_string_type): Issue warning about strings longer
3347         than is portable only if warn_overlength_strings.  Rearrange code
3348         a little for clarity.
3349         * configure.in: Check for -Wno-overlength-strings as well before
3350         enabling -pedantic in stage 1.
3351         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3352         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3353
3354         * genconditions.c (write_header, write_one_condition)
3355         (write_conditions, write_writer): Consolidate very long strings
3356         that were broken up to fit in C89 portable limit.  Don't use
3357         printf when fputs will do.
3358
3359 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3360
3361         * combine.c (simplify_comparison <AND>): Check
3362         TRULY_NOOP_TRUNCATION before start using a subreg.
3363
3364         * config/mips/mips.md (*branch_zero<mode>,
3365         *branch_zero<mode>_inverted, *branch_equality<mode>,
3366         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3367         Remove mode check from comparisons.
3368
3369 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3370
3371         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3372
3373 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3374
3375         * expmed.c (const_mult_add_overflow_p): Remove.
3376         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3377
3378         * recog.c (validate_replace_rtx_subexp): Remove.
3379         * recog.h: Remove the prototype for
3380         validate_replace_rtx_subexp.
3381
3382         * integrate.h: Remove the prototype for
3383         copy_decl_for_inlining.
3384         * rtl.h: Remove the prototype for mark_constant_function.
3385         * tree-vectorizer.h: Remove the prototype for
3386         vect_strip_conversion.
3387
3388         * modulo-sched.c (create_partial_schedule,
3389         free_partial_schedule, reset_partial_schedule): Make them
3390         static.
3391
3392         * hooks.c (hook_bool_rtx_int_false): Remove.
3393         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3394
3395 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3396
3397         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3398         and -mlong-double-128 are incompatible.
3399         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3400         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3401         (TARGET_LIBGCC2_CFLAGS): Define.
3402         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3403         (TARGET_LIBGCC2_CFLAGS): Same.
3404         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3405
3406 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3407
3408         PR c/19606.
3409         * c-typeck.c (build_binary_op): Perform implicit casts of
3410         operands before shortening them.
3411
3412         * cfgloopmanip.c (split_loop_bb): Remove.
3413         * cfgloop.h: Remove the prototype for split_loop_bb.
3414