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1 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
2
3         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
4         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
5         (expand_builtin_init_dwarf_reg_sizes): Likewise.
6
7 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
8
9         PR target/26588
10         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
11
12 2006-03-08  Ben Elliston  <bje@au.ibm.com>
13
14         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
15
16 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
17
18         PR gomp/26238
19         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
20         expansion.
21
22 2006-03-07  Richard Guenther  <rguenther@suse.de>
23
24         PR tree-optimization/26587
25         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
26
27 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
28
29         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
30
31 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
32
33         * hooks.c (hook_bool_mode_rtx_true): New function.
34         * hooks.h (hook_bool_mode_rtx_true): Declare.
35         * toplev.c (compile_file): Call output_shared_constant_pool.
36         * varasm.c (shared_constant_pool): New variable.
37         (assemble_start_function, assemble_end_function): Remove arguments
38         from call to output_constant_pool.
39         (create_constant_pool): New function, split out from...
40         (init_varasm_status): ...here.
41         (force_const_mem): Choose between the shared and per-function constant
42         pools.  Set current_function_uses_const_pool when reusing old entries
43         as well as when creating new ones.
44         (mark_constant): Ignore data argument.
45         (mark_constants): Remove pool argument.
46         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
47         to decide whether the function uses a constant pool.
48         (output_constant_pool_contents): New function, split out from...
49         (output_constant_pool): ...here.
50         (output_shared_constant_pool): New function.
51         (init_varasm_once): Initialize shared_constant_pool.
52         * output.h (output_constant_pool): Delete.
53         (output_shared_constant_pool): Declare.
54         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
55         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
56
57 2006-03-06  Nick Clifton  <nickc@redhat.com>
58
59         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
60         flag_strength_reduce.
61
62 2006-03-06  Ben Elliston  <bje@au.ibm.com>
63
64         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
65         x86_64-*-linux* configurations.
66
67         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
68         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
69
70 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
71
72         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
73         Remove.
74         * basic-block.h: Remove the extern for
75         rediscover_loops_after_threading.
76
77         * cfgloop.c (cancel_loop): Make it static.
78         * cfgloop.h: Remove the prototype for cancel_loop.
79
80         * flow.c (recompute_reg_usage): Make it static.
81         * rtl.h: Remove the prototype for recompute_reg_usage.
82
83         * function.c (use_return_register): Make it static.
84         * function.h: Remove the prototype.
85
86 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
87
88         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
89         Remove.
90         * recog.h: Remove the prototype for
91         validate_change_maybe_volatile.
92
93 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
94
95         * rtlanal.c (replace_reg): Remove.
96         * rtl.h: Remove the prototype for replace_reg.
97
98 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
99
100         * regclass.c (reg_scan_update): Remove.
101         (reg_scan_mark_refs): Remove the last argument.
102         * rtl.h: Remove the prototype for reg_scan_update.
103
104 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
105
106         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
107         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
108         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
109         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
110         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
111         loop-invariant.c, omp-low.c, opts.c, passes.c,
112         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
113         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
114         tree-ssa-structalias.c, tree-ssa-threadedge.c,
115         tree-ssa-threadupdate.c, tree-vect-patterns.c,
116         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
117         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
118
119 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
120
121         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
122         * dwarf2out.h: Remove the prototype for
123         dwarf2out_add_library_unit_info.
124
125 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
126
127         * tree.c (add_var_to_bind_expr): Remove.
128         * tree.h: Remove the prototype for add_var_to_bind_expr.
129
130 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
131
132         * regclass.c (n_non_fixed_regs): Remove.
133         (init_reg_sets_1, globalize_reg): Remove all uses of
134         n_non_fixed_regs.
135         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
136
137 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
138
139         * rtlanal.c (insns_safe_to_move_p): Remove.
140         * rtl.h: Remove the prototype for insns_safe_to_move_p.
141
142 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
143
144         * expmed.c (expand_mult_add): Remove.
145         * expr.h: Remove the prototype for expand_mult_add.
146
147 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
148
149         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
150         and REG_SAVED_VAL_EXP constants.
151         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
152         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
153         Handle regs stored by value.
154         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
155         (execute_cfa_program): Handle DW_CFA_val_offset,
156         DW_CFA_val_offset_sf and DW_CFA_val_expression.
157         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
158         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
159         (uw_install_context_1): Handle target regs stored by value.
160
161 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
162
163         * tree-sra.c (tree_sra): Return todoflags;
164         (generate_one_element): Set TODO_update_smt_usage if needed.
165         (pass_sra): Remove TODO_update_smt_usage.
166         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
167         parameter.
168         (tree_ssa_forward_propagate_single_use_vars): Return
169         TODO_update_smt_usage if we need to update SMT usage.
170         (pass_forwprop): Remove TODO_update_smt_usage.
171         
172 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
173
174         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
175         (correct_use_link): Remove reference to get_stmt_operands.
176         (update_stmt_operands): Likewise.
177         (get_modify_expr_operands): New function factored out of
178         parse_ssa_operands and get_expr_operands.
179         Try to create V_MUST_DEFs for LHS by default.
180         (get_expr_operands) <case MODIFY_EXPR>: Call
181         get_modify_expr_operands.
182         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
183         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
184         (parse_ssa_operands) <case MODIFY_EXPR>: Call
185         get_modify_expr_operands.
186
187 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
188
189         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
190         * tree-flow.h: Remove the prototype for
191         referenced_var_lookup_if_exists.
192
193 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
194
195         PR rtl-optimization/26345
196         PR target/19061
197         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
198
199 2006-03-03  Roger Sayle  <roger@eyesopen.com>
200
201         PR tree-optimization/26524
202         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
203         fold_convert to create a constant of the appropriate type.
204
205 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
206
207         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
208         SYMBOL_REF_IN_BLOCK_P.
209         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
210         of SYMBOL_FLAG_IN_BLOCK.
211         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
212         instead of SYMBOL_REF_IN_BLOCK_P.
213         * explow.c (use_anchored_address): Likewise.
214         * rtl.c (rtx_size): Likewise.
215         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
216         instead of SYMBOL_FLAG_IN_BLOCK.
217         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
218         SYMBOL_REF_IN_BLOCK_P.
219         (assemble_variable): Likewise.
220         (output_constant_def_contents): Likewise.
221         (output_constant_pool): Likewise.
222         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
223         instead of SYMBOL_FLAG_IN_BLOCK.
224         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
225         SYMBOL_REF_IN_BLOCK_P.
226         (SYMBOL_REF_BLOCK): Likewise.
227         (SYMBOL_REF_OFFSET): Likewise.
228         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
229         SYMBOL_REF_IN_BLOCK_P.
230         (SYMBOL_FLAG_IN_BLOCK): Replace with...
231         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
232         (SYMBOL_REF_IN_BLOCK_P): Replace with...
233         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
234
235 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
236
237         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
238
239 2006-03-02  Roger Sayle  <roger@eyesopen.com>
240
241         * simplify-rtx.c (simplify_unary_operation): When simplifying
242         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
243         that we perform the right shift in the appropriate mode, and
244         then extend or truncate the result to requested mode.
245
246 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
247
248         * gengtype.c (main): Handle double_int type.
249         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
250         * double-int.c: New file.
251         * double-int.h: New file.
252         * system.h: Include doubleint.h.
253         * Makefile.in (SYSTEM_H): Include double-int.h.
254         (double-int.o): Add.
255
256 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
257
258         PR bootstrap/26478
259         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
260         copying over it.
261
262 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
263
264         * tree-vrp.c (remove_range_assertions): Do not update statements
265         unnecessarily.
266
267 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
268
269         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
270         cleanup.
271         * gcse.c (rest_of_handle_gcse): Ditto.
272         * except.c (gate_handle_eh): Ditto.
273         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
274         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
275
276 2006-03-02  Eric Christopher  <echristo@apple.com>
277
278         * config/i386/i386.c (machopic_output_stub): Add indirection to
279         jump.
280
281 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
282
283         * loop.c: Removed.
284
285 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
286
287         Sun Niagara specific optimizations.
288         * config.gcc: Recognize niagara as target.
289         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
290         (TARGET_CPU_niagara): Define.
291         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
292         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
293         (CPP_CPU_SPEC): Handle -mcpu=niagara.
294         (ASM_CPU_SPEC): Likewise.
295         (PROCESSOR_NIAGARA): New enum entry.
296         (REGISTER_MOVE_COST): Handle Niagara.
297         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
298         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
299         (sparc_override_options): Recognize "niagara", set appropriate
300         default MASK_* values for it, and align functions to 32-bytes
301         by default just like ULTRASPARC/ULTRASPARC3.
302         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
303         (sparc64_initialize_trampoline): Likewise.
304         (sparc_use_sched_lookahead): Use zero for niagara.
305         (sparc_issue_rate): Use one for niagara.
306         * config/sparc/niagara.md: New file.
307         * config/sparc/sparc.md: Include it.
308         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
309         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
310         when default cpu is niagara.
311         (CPP_CPU_SPEC): Handle -mcpu=niagara.
312         (ASM_CPU_SPEC): Likewise.
313         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
314         when default cpu is niagara.
315         (ASM_CPU_SPEC): Handle -mcpu=niagara.
316         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
317         just like v9/ultrasparc/ultrasparc3.
318         * doc/invoke.texi: Add documentation for "niagara" and improve
319         existing documentation for ultrasparc variants.
320
321 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
322
323         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
324
325 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
326
327         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
328         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
329         and say that only one is needed.
330         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
331         * target.h (have_switchable_bss_sections): New hook.
332         * explow.c (use_anchored_address): Check that the symbol is in a block.
333         * varasm.c (tls_comm_section, comm_section, lcomm_section)
334         (bss_noswitch_section): New variables.
335         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
336         (get_noswitch_section): New function.
337         (get_block_for_section): Allow SECT to be null.
338         (unlikely_text_section_p): Use SECTION_STYLE.
339         (bss_initializer_p): New function.
340         (get_variable_section): Move earlier in file.  Take a new argument,
341         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
342         Return one of the new *_sections in such cases.
343         (get_block_for_decl): New function, extracting some logic from
344         use_blocks_for_decl_p.
345         (change_symbol_section): Remove in favor of...
346         (change_symbol_block): ...this new function.
347         (use_blocks_for_decl_p): Remove checks now performed by
348         get_block_for_decl.
349         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
350         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
351         (emit_local, emit_bss, emit_common): ...these new functions.
352         Return true if the alignment was honored.
353         (emit_tls_common): New function.
354         (asm_emit_uninitialised): Delete.
355         (assemble_variable_noswitch): New function, split out from...
356         (assemble_variable): ...here.  Don't make decisions about common
357         variables here.  Globalize all public decls that go into non-common
358         sections.  Check whether SYMBOL_REF_BLOCK is null.
359         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
360         (output_constant_pool): Likewise.
361         (init_varasm_once): Initialize the new section variables.
362         (have_global_bss_p): New function.
363         (categorize_decl_for_section): Use bss_initializer_p.
364         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
365         (place_block_symbol): Assert that the symbol must be in a block.
366         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
367         (TARGET_INITIALIZER): Include it.
368         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
369         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
370         (SECTION_MACH_DEP): Bump by two.
371         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
372         (unnamed_section): Mention SECTION_UNNAMED in comment.
373         (named_section): Likewise SECTION_NAMED.
374         (noswitch_section_callback): New type.
375         (noswitch_section): New structure.
376         (section): Add a noswitch_section alternative.
377         (SECTION_STYLE): New macro.
378         (tls_comm_section, comm_section, lcomm_section): Declare.
379         (bss_noswitch_section, have_global_bss_p): Declare.
380         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
381         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
382         Override.
383         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
384         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
385         Override.
386
387 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
388
389         * gcc/tree-vrp.c (execute_vrp): Return value.
390         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
391         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
392         * gcc/tree-complex.c (tree_lower_complex): Ditto.
393         (tree_lower_complex_O0): Ditto.
394         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
395         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
396         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
397         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
398         (execute_tail_calls): Ditto.
399         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
400         * gcc/tree.h (init_function_for_compilation): Ditto.
401         * gcc/ipa-cp.c (ipcp_driver): Ditto.
402         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
403         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
404         * gcc/final.c (compute_alignments): Ditto.
405         (rest_of_handle_final): Ditto.
406         (rest_of_handle_shorten_branches): Ditto.
407         (rest_of_clean_state): Ditto.
408         * gcc/omp-low.c (execute_expand_omp): Ditto.
409         (execute_lower_omp): Ditto.
410         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
411         * gcc/ipa-reference.c (static_execute): Ditto.
412         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
413         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
414         (rest_of_handle_machine_reorg): Ditto.
415         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
416         * gcc/flow.c (recompute_reg_usage): Ditto.
417         (rest_of_handle_remove_death_notes): Ditto.
418         (rest_of_handle_life): Ditto.
419         (rest_of_handle_flow2): Ditto.
420         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
421         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
422         (do_ssa_store_ccp): Ditto.
423         (execute_fold_all_builtins): Ditto.
424         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
425         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
426         * gcc/ipa-pure-const.c (static_execute): Ditto.
427         * gcc/cse.c (rest_of_handle_cse): Ditto.
428         (rest_of_handle_cse2): Ditto.
429         * gcc/web.c (rest_of_handle_web): Ditto.
430         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
431         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
432         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
433         * gcc/tree-nrv.c (tree_nrv): Ditto.
434         (execute_return_slot_opt): Ditto.
435         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
436         (create_structure_vars): Ditto.
437         * gcc/loop-init.c (rtl_loop_init): Ditto.
438         (rtl_loop_done): Ditto.
439         (rtl_move_loop_invariants): Ditto.
440         (rtl_unswitch): Ditto.
441         (rtl_unroll_and_peel_loops): Ditto.
442         (rtl_doloop): Ditto.
443         * gcc/gimple-low.c (lower_function_body): Ditto.
444         (mark_used_blocks): Ditto.
445         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
446         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
447         (cgraph_early_inlining): Ditto.
448         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
449         * gcc/jump.c (cleanup_barriers): Ditto.
450         (purge_line_number_notes): Ditto.
451         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
452         (rest_of_handle_if_after_reload): Ditto.
453         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
454         (tree_ssa_loop_im): Ditto.
455         (tree_ssa_loop_unswitch): Ditto.
456         (tree_vectorize): Ditto.
457         (tree_linear_transform): Ditto.
458         (tree_ssa_loop_ivcanon): Ditto.
459         (tree_ssa_empty_loop): Ditto.
460         (tree_ssa_loop_bounds): Ditto.
461         (tree_complete_unroll): Ditto.
462         (tree_ssa_loop_prefetch): Ditto.
463         (tree_ssa_loop_ivopts): Ditto.
464         (tree_ssa_loop_done): Ditto.
465         * gcc/predict.c (tree_estimate_probability): Ditto.
466         * gcc/recog.c (split_all_insns_noflow): Ditto.
467         (rest_of_handle_peephole2): Ditto.
468         (rest_of_handle_split_all_insns): Ditto.
469         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
470         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
471         (rest_of_handle_stack_adjustments): Ditto.
472         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
473         * gcc/function.c (instantiate_virtual_regs): Ditto.
474         (init_function_for_compilation): Ditto.
475         (rest_of_handle_check_leaf_regs): Ditto.
476         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
477         (rest_of_handle_gcse): Ditto.
478         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
479         * gcc/alias.c (rest_of_handle_cfg): Ditto.
480         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
481         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
482         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
483         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
484         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
485         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
486         * gcc/except.c (set_nothrow_function_flags): Ditto.
487         (convert_to_eh_region_ranges): Ditto.
488         (rest_of_handle_eh): Ditto.
489         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
490         (remove_unnecessary_notes): Ditto.
491         * gcc/except.h (set_nothrow_function_flags): Ditto.
492         (convert_to_eh_region_ranges): Ditto.
493         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
494         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
495         * gcc/tree-ssa-pre.c (do_pre): Ditto.
496         (execute_fre): Ditto.
497         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
498         (rest_of_handle_jump2): Ditto.
499         * gcc/tree-sra.c (tree_sra): Ditto.
500         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
501         (execute_mudflap_function_decls): Ditto.
502         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
503         (do_store_copy_prop): Ditto.
504         * gcc/ipa-prop.h (ipcp_driver): Ditto.
505         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
506         * gcc/tree-ssa-forwprop.c
507         (tree_ssa_forward_propagate_single_use_vars): Ditto.
508         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
509         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
510         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
511         (execute_late_warn_uninitialized): Ditto.
512         * gcc/rtl.h (cleanup_barriers): Ditto.
513         (split_all_insns_noflow): Ditto.
514         (purge_line_number_notes): Ditto.
515         (unshare_all_rtl): Ditto.
516         (remove_unnecessary_notes): Ditto.
517         (recompute_reg_usage): Ditto.
518         (variable_tracking_main): Ditto.
519         * gcc/integrate.c (emit_initial_value_sets): Ditto.
520         * gcc/integrate.h (emit_initial_value_sets): Ditto.
521         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
522         (execute_free_cfg_annotations): Ditto.
523         (execute_fixup_cfg): Ditto.
524         (execute_cleanup_cfg_pre_ipa): Ditto.
525         (execute_cleanup_cfg_post_optimizing): Ditto.
526         (execute_init_datastructures): Ditto.
527         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
528         * gcc/combine.c (rest_of_handle_combine): Ditto.
529         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
530         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
531         (rest_of_handle_reorder_blocks): Ditto.
532         (rest_of_handle_partition_blocks): Ditto.
533         * gcc/var-tracking.c (variable_tracking_main): Ditto.
534         * gcc/tree-profile.c (tree_profiling): Ditto.
535         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
536         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
537         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
538         (rest_of_handle_sched2): Ditto.
539         * gcc/basic-block.h (free_bb_insn): Ditto.
540         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
541         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
542         (remove_useless_stmts): Ditto.
543         (split_critical_edges): Ditto.
544         (execute_warn_function_return): Ditto.
545         (execute_warn_function_noreturn): Ditto.
546         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
547         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
548         * gcc/passes.c (execute_one_pass): Run additional
549         todos returned by execute function.
550         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
551         return a value.
552
553 2006-03-02  Richard Guenther  <rguenther@suse.de>
554
555         * tree-ssa-alias.c (find_used_portions): Consider taking
556         the address as making the variable not write-only.
557
558 2006-03-02  Nick Clifton  <nickc@redhat.com>
559
560         * config.gcc (default_use_cxa_atexit): Extend the description of
561         this configure variable.  Set its default value to "yes" for
562         Linux, NetBSD and ELF targets on the assumption that they will
563         use C libraries with the __cxa_atexit function.
564
565 2006-03-02  Ben Elliston  <bje@au.ibm.com>
566
567         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
568         parameter as unused to suppress a build warning.
569
570 2006-03-02  Ben Elliston  <bje@au.ibm.com>
571
572         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
573         config/dfp-bit.c.
574
575 2006-03-01  Roger Sayle  <roger@eyesopen.com>
576
577         PR other/26489
578         * gthr-posix.h (__gthrw2): Define to take three parameters, the
579         declared name, the weak reference name, and the typeof name.
580         (__gthrw): Avoid expanding the declared name suffix.
581         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
582
583 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
584
585         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
586         from DWARF 3.
587         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
588         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
589         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
590         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
591         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
592         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
593         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
594         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
595         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
596         DW_DS_leading_separate, DW_DS_trailing_separate): New.
597         (DW_END_default, DW_END_big, DW_END_little): New.
598         (DW_END_lo_user, DW_END_hi_user): Define.
599         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
600         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
601         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
602         DW_LANG_D): New.
603
604 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
605
606         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
607         Update all users.
608         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
609         Update all users.
610         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
611         Update all users.
612         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
613         Update all users.
614         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
615         to 'symbol_mem_tag'.
616         Update all users.
617         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
618         rename.
619
620 2006-03-01  Roger Sayle  <roger@eyesopen.com>
621
622         * builtins.c (fold_builtin_copysign): Delete unreachable code.
623
624 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
625
626         PR target/25761
627         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
628         MACHO_DYNAMIC_NO_PIC_P.
629         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
630
631 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
632
633         PR target/26389
634         * config/darwin-protos.h (darwin_asm_output_anchor):
635         Declare.
636         * config/darwin-sections.def (cstring_section):
637         Add SECTION_MERGE to the flags.
638         (literal4_section): Likewise.
639         (literal8_section): Likewise.
640         (objc_selector_refs_section): Likewise.
641         (objc_cls_refs_section): Likewise.
642         * config/darwin.c (darwin_asm_output_anchor): New
643         function.
644         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
645
646 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
647
648         Fix PR tree-optimization/26443
649         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
650         to todo and PROP_tmt_usage to properties_destroyed.
651         * tree-ssa-ccp.c (pass_ccp): Ditto.
652         (pass_store_ccp): Ditto.
653         * tree-ssa-dom.c (pass_dominator): Ditto.
654
655 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
656
657         * tree-ssa-operands.c: Cleanup whitespace.
658         (get_asm_expr_operands): Move before first invocation.
659         (get_indirect_ref_operands): Likewise.
660         (get_tmr_operands): Likewise.
661         (get_call_expr_operands): Likewise.
662         (append_def): Likewise.
663         (append_use): Likewise.
664         (append_v_may_def): Likewise.
665         (append_v_must_def): Likewise.
666         (add_call_clobber_ops): Likewise.
667         (add_call_read_ops): Likewise.
668         (add_stmt_operand): Likewise.
669         (add_virtual_operand): Likewise.
670         (build_ssa_operands): Likewise.
671
672 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
673
674         PR middle-end/26022
675         Revert:
676         PR middle-end/24437
677         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
678         with a call expr to ...
679         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
680
681 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
682
683         * tree-vrp.c (extract_range_from_assert): Remove special
684         handling for types with super-types.
685
686 2006-03-01  Ben Elliston  <bje@au.ibm.com>
687
688         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
689         and powerpc64-*-linux* configurations.
690         * config/t-dfprules: New file.
691
692         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
693         Compile dfp-bit.c from the source directory using -DWIDTH and
694         $DFP_CFLAGS to control the compilation of that file, rather than
695         generating width-specific versions in the build directory.
696         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
697         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
698
699 2006-02-28  Zack Weinberg  <zackw@panix.com>
700
701         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
702         continues to work.
703
704 2006-02-28  Eric Christopher  <echristo@apple.com>
705
706         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
707         Set up IN_LIBGCC definition of TARGET_64BIT.
708         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
709
710 2006-02-28  Roger Sayle  <roger@eyesopen.com>
711
712         PR middle-end/14752
713         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
714         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
715         cases via the construction of "expr != 0".
716
717 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
718
719         * alias.c (alias_invariant, alias_invariant_size): Remove.
720         (record_base_value): Remove.
721         (memrefs_conflict_p): Don't look at alias_invariant.
722         (end_alias_analysis): Don't free it.
723         * alias.h (record_base_value): Remove prototype.
724
725 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
726             Adam Nemet  <anemet@caviumnetworks.com>
727
728         * rtl.h (truncated_to_mode): Declare it.
729         (struct rtl_hooks): Add reg_truncated_to_mode hook.
730         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
731         (RTL_HOOKS_INITIALIZER): Include it.
732         * rtlhooks.c (reg_truncated_to_mode_general): New function.
733         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
734         reg_truncated_to_mode.
735         * rtlanal.c (truncated_to_mode): Define it.
736         * simplify-rtx.c (simplify_unary_operation_1): Use it.
737
738 2006-02-28  Jeff Law  <law@redhat.com>
739
740         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
741         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
742         the range allowed by TYPE_PRECISION.
743
744         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
745
746 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
747
748         PR tree-optimization/26419
749         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
750         values of n.
751
752 2006-02-27  Zack Weinberg  <zackw@panix.com>
753
754         * doc/md.texi: Fix typo in previous change.
755
756 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
757
758         * df.c: Remove.
759
760 2006-02-27  Zack Weinberg  <zackw@panix.com>
761
762         * rtl.def (define_constraint, define_register_constraint)
763         (define_memory_constraint, define_address_constraint): New MD forms.
764         * gensupport.c (process_rtx): Put define_constraint etc on the
765         predicate queue.
766         * genpreds.c (process_define_predicate): Adjust comment.  Validate
767         the name, and call validate_exp to validate the expression.
768         (mark_mode_tests, write_extract_subexp): Can assume correct input.
769         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
770         all callers changed.
771         (validate_exp, needs_variable, struct constraint_data)
772         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
773         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
774         (const_dbl_constraints, constraint_max_namelen)
775         (have_register_constraints, have_memory_constraints)
776         (have_address_constraints, have_address_constraints)
777         (have_extra_constraints, have_const_int_constraints)
778         (have_const_dbl_constraints, mangle, add_constraint)
779         (process_define_constraint, process_define_register_constraint)
780         (write_enum_constraint_num, write_lookup_constraint)
781         (write_insn_constraint_len, write_regclass_for_constraint)
782         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
783         (write_insn_extra_memory_constraint)
784         (write_insn_extra_address_constraint)
785         (write_satisfies_constraint_fns): New.
786         (write_tm_preds_h): If we have new-style constraint definitions,
787         prototype the functions generated from them, and define the
788         old constraint interface (still used by generic code) in terms of
789         those functions.
790         (write_insn_preds_c): If we have new-style constraint definitions,
791         generate all relevant functions from those definitions.
792         (main): Handle define_constraint etc.
793         * genoutput.c (struct constraint_data, indep_constraints)
794         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
795         (mdep_constraint_len): New data structures and functions, defined
796         #ifdef USE_MD_CONSTRAINTS.
797         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
798         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
799         use new logic to validate operand constraints against constraint
800         definitions.
801         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
802         defined.
803         * defaults.h: If none of the old-style constraint macros are
804         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
805         old-style macros; and poison REG_CLASS_FROM_LETTER,
806         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
807         EXTRA_CONSTRAINT.
808         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
809         * doc/md.texi: Document new constraint-definition mechanism and the
810         C interface it provides.  Remove references to old mechanism
811         elsewhere in the document.
812         (Machine Constraints): Use pathnames relative to gcc directory,
813         i.e. config/ARCH/FILE.  Change i386 section to refer to
814         config/i386/predicates.md; update that section to match docstrings.
815         * doc/tm.texi: Move all documentation of the old constraint-
816         definition macros to their own section, clearly mark as obsolete.
817
818         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
819         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
820         definitions.
821         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
822         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
823         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
824         constraint strings.
825         (splits and peepholes): Use satisfies_constraint_*.
826         * config/i386/i386.c (memory_address_length)
827         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
828
829 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
830
831         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
832         scalar operation to be put back into the loop.
833
834 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
835
836         PR other/26208
837         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
838         (extract_cie_info): Handle S flag in augmentation string.
839         (execute_cfa_program): If context->signal_frame, execute also
840         fs->pc == context->ra instructions.
841         (uw_frame_state_for): If context->signal_frame, don't subtract one
842         from context->ra to find FDE.
843         (uw_update_context_1): Set context->signal_frame to
844         fs->signal_frame.
845         (_Unwind_GetIPInfo): New function.
846         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
847         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
848         of _Unwind_GetIP.
849         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
850         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
851         * unwind-compat.c (_Unwind_GetIPInfo): New function.
852         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
853         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
854         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
855         * config/i386/linux-unwind.h (x86_fallback_frame_state,
856         x86_64_fallback_frame_state): Set fs->signal_frame.
857         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
858         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
859         (frob_update_context): Likewise.  Workaround missing S flag in
860         Linux 2.6.12 - 2.6.16 kernel vDSOs.
861         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
862         Remove the psw_addr + 1 hack.
863
864 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
865
866         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
867         with aggregates here.
868         (find_func_aliases): Remove code for &<aggregate> from here.
869
870 2006-02-26  Roger Sayle  <roger@eyesopen.com>
871
872         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
873         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
874         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
875         as (X & C) ne/eq 0.
876
877 2006-02-26  Roger Sayle  <roger@eyesopen.com>
878
879         PR middle-end/19983
880         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
881
882 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
883
884         * opts.c (decode_options): Do not handle flag_strength_reduce.
885         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
886         and OPT_fstrength_reduce.
887         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
888         flag_prefetch_loop_arrays for being nonzero.
889         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
890         no-ops.
891         (fprefetch-loop-arrays-rtl): Removed.
892         (flag_prefetch_loop_arrays): Do not specify the value.
893
894         * doc/passes.texi: Update documentation of loop optimizer
895         passes.
896         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
897         -frerun-loop-opt): Remove.
898
899 2006-02-26  Richard Guenther  <rguenther@suse.de>
900
901         PR tree-optimization/26421
902         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
903         in function calls that are ADDR_EXPRs as using the whole structure.
904
905 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
906
907         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
908         * tree-pass.h (pass_loop_optimize): Remove.
909         * passes.c (pass_loop_optimize): Never run it.
910         * toplev.c (backend_init): Don't call init_loop.
911         * opts.c (flag_loop_optimize_set): Remove.
912         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
913         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
914         the old RTL loop optimizer when profiling enabled.
915         * predict.c (tree_estimate_probability): Always strip builtin_expect.
916         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
917         pre-headers for the sake of the old RTL loop optimizer.
918         * Makefile.in: Remove all references to loop.o.
919
920         * doc/invoke.texi: Remove all references to -floop-optimize
921         and -frerun-loop-opt.
922
923 2006-02-26  Zack Weinberg  <zackw@panix.com>
924
925         * doc/md.texi (Machine Constraints): Refer to all files with paths
926         relative to gcc directory (i.e. config/CPU/file).  Add missing
927         @table @code ... @end table to M32C subsection.
928
929 2006-02-26  Roger Sayle  <roger@eyesopen.com>
930
931         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
932         (X & 1) == 0.
933         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
934
935 2006-02-26  Roger Sayle  <roger@eyesopen.com>
936             James A. Morrison  <phython@gcc.gnu.org>
937
938         PR middle-end/21137
939         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
940         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
941         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
942         signedness of the shift operation.
943
944 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
945
946         PR tree-optimization/26359
947         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
948
949 2006-02-25  Roger Sayle  <roger@eyesopen.com>
950
951         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
952         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
953         as X == 0, and some symmetry related transformations.
954         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
955
956 2006-02-25  Roger Sayle  <roger@eyesopen.com>
957
958         PR middle-end/23673
959         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
960         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
961         symmetry related transformations.  Fold (X^C1) == C2 as
962         X == (C1^C2).
963
964 2006-02-25  Juergen Weigert  <jw@suse.de>
965         Richard Guenther  <rguenther@suse.de>
966
967         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
968
969 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
970
971         * combine.c (gen_lowpart_or_truncate): Call
972         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
973
974 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
975
976         * doc/invoke.texi: Move -fopenmp description to "Options for
977         Code Generation".
978         Remove reference to -lgomp.
979
980 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
981
982         * doc/install.texi: Require GNU tar version 1.14.
983
984 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
985
986         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
987         * doc/invoke.texi (C++ Dialect Options): Document
988         -fno-use-cxa-get-exception-ptr.
989         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
990         * configure: Regenerate.
991         * c.opt (fuse-cxa-get-exception-ptr): New.
992         * c-opts.c (c_common_handle_option): Handle
993         OPT_fuse_cxa_get_exception_ptr.
994         * c-common.c (flag_use_cxa_atexit): Update documentation.
995         (flag_use_cxa_get_exception_ptr): New.
996         * c-common.h (flag_use_cxa_get_exception_ptr): New.
997         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
998         documentation.
999         (C_COMMON_OVERRIDE_OPTIONS): New.
1000
1001 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1002
1003         PR middle-end/24952
1004         * combine.c (try_combine): Explicitly check whether GET_CODE is
1005         a SET or a CLOBBER, instead on checking that it isn't a USE.
1006
1007 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1008
1009         * fold-const.c (fold_comparison): New subroutine of fold_binary
1010         containing transformations common to both the equality and
1011         ordering relational operators, factored out of fold_binary.
1012         (fold_binary): Separate out the equality operators (EQ_EXPR
1013         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1014         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1015         transformations common to both.
1016         (fold_div_compare): Fix latent bugs in the previously unreachable
1017         LT_EXPR and GE_EXPR cases.
1018
1019 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1020
1021         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1022         decl libname for clog to __clog on AIX.
1023
1024         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1025
1026 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1027
1028         PR target/26453
1029         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1030         output traceback table for thunks.  Localise rs6000_stack_info call.
1031
1032 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1033             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1034
1035         * gthr-posix.h (__gthrw): Fix typo in comment.
1036
1037 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1038
1039         * doc/cpp.texi (Character sets): Document that we do support
1040         input files to be in any character set.
1041
1042 2006-02-23  Jeff Law  <law@redhat.com>
1043
1044         * tree.h (PHI_ARG_NONZERO): Remove.
1045         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1046         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1047         node to the new node.
1048
1049         PR tree-optimization/26425
1050         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1051         min/max, then assume its varying.
1052
1053 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1054
1055         PR rtl-optimization/26316
1056         * rtlanal.c (enum may_trap_p_flags): New.
1057         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1058         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1059         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1060         (may_trap_after_code_motion_p): New function.
1061         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1062         (find_invariant_insn): Use may_trap_after_code_motion_p.
1063         * rtl.h (may_trap_after_code_motion_p): Declare.
1064
1065 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1066
1067         * emit-rtl.c (immed_double_const): Cleanup.
1068
1069 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1070
1071         Fix PR tree-optimization/26376
1072         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1073         remove assert.
1074
1075 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1076
1077         PR middle-end/26412
1078         * gimplify.c (omp_add_variable): Guard variable size decl test with
1079         DECL_SIZE (decl) check.
1080
1081 2006-02-23  Richard Guenther  <rguenther@suse.de>
1082
1083         PR middle-end/26439
1084         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1085         like aggregate types.
1086
1087 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1088
1089         * configure.ac: Add --with{,out}-long-double-128 configure option.
1090         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1091         * configure: Rebuilt.
1092         * config.in: Rebuilt.
1093         * doc/install.texi (Options specification): Document
1094         --with-long-double-128.
1095
1096         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1097         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1098         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1099         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1100
1101 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1102
1103         * config/s390/s390.c (override_options): Handle
1104         TARGET_DEFAULT_LONG_DOUBLE_128.
1105
1106         * config/alpha/alpha.c (override_options): Handle
1107         TARGET_DEFAULT_LONG_DOUBLE_128.
1108
1109         * config/sparc/sparc.c (sparc_override_options): Handle
1110         TARGET_DEFAULT_LONG_DOUBLE_128.
1111
1112 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1113
1114         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1115         (real-install-headers-tar, real-install-headers-cpio)
1116         (real-install-headers-cp): New targets.
1117
1118 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1119
1120         * tree.h (variable_section): Delete.
1121         * varasm.c (variable_section): Delete.
1122
1123 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1124
1125         * install.texi: Add notes on install.texi2html.
1126         (Building in parallel): Do not use footnotes.
1127
1128 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1129
1130         PR libgomp/26234
1131         * doc/install.texi (Configuration): Document --disable-libgomp.
1132
1133 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1134
1135         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1136
1137 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1138
1139         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1140         (vec_extractv2df_0_sse): New.
1141
1142 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1143
1144         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1145         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1146         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1147         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1148         to the result of the expression.
1149         (def_cfa_1): Adjust.
1150         (frame_pointer_cfa_offset): Rename to...
1151         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1152         (convert_cfa_to_loc_list): Rename to...
1153         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1154         Pass it on to build_cfa_loc.
1155         (compute_frame_pointer_to_cfa_displacement): Rename to...
1156         (compute_frame_pointer_to_fb_displacement): ... this.  New
1157         offset parameter.  Use it in computation.
1158         (gen_subprogram_die): Compute cfa_fb_offset with the new
1159         macro, and use it to compute the fb loc list and the
1160         displacement.
1161
1162 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1163
1164         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1165         replaced with register_operand.
1166         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1167         non-DREG is expensive.
1168         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1169         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1170         involving memory.
1171
1172 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1173
1174         * doc/install.texi2html: Use set -e.
1175
1176 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1177
1178         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1179         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1180         * doc/invoke.texi (-fshared-data): Delete.
1181         * common.opt (fshared-data): Delete.
1182         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1183         (assemble_static_space): Remove #if 0 code.
1184         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1185         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1186         * config/cris/cris.h: Remove FIXME.
1187
1188 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1189
1190         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1191         hooks.
1192
1193 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1194
1195         PR middle-end/26379
1196         * combine.c (simplify_shift_const_1): Disable nested shifts
1197         optimization for vector shifts.
1198
1199 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1200
1201         PR tree-optimization/26361
1202         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1203         of unsigned integer types.
1204
1205 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1206
1207         * tree-chrec.c (eq_evolutions_p): New.
1208         * tree-chrec.h (eq_evolutions_p): Declared.
1209         * tree-data-ref.c: Fix formatting.
1210         (datadep_stats, dependence_stats): New.
1211         (gcd): Moved...
1212         (print_direction_vector): New.
1213         (dump_data_dependence_relation): Use print_direction_vector.
1214         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1215         (compute_subscript_distance): Static.
1216         (initialize_data_dependence_relation): Static.  Get the number
1217         of loops surrounding the references from the callers, and initialize
1218         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1219         base_object_differ_p analyzers.
1220         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1221         compute_overlap_steps_for_affine_1_2,
1222         analyze_subscript_affine_affine): Count the classified dependences.
1223         Print a message when a test failed.
1224         (can_use_analyze_subscript_affine_affine): New.
1225         (analyze_siv_subscript): Compute the data dependences on symbolic
1226         scevs that verify can_use_analyze_subscript_affine_affine.
1227         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1228         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1229         Handle symbolic scevs.
1230         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1231         analyzed.
1232         (subscript_dependence_tester): Moved...
1233         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1234         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1235         DDR_SIZE_VECT instead of getting it in parameter.
1236         (subscript_dependence_tester): ... here.  Take as a parameter
1237         loop_nest_depth.  Call build_classic_dist_vector and
1238         build_classic_dir_vector.
1239         (compute_affine_dependence): Update subscript_dependence_tester
1240         parameters.  Update datadep_stats counters.  Call
1241         compute_subscript_distance.
1242         (compute_self_dependence): Save the dist and dir vectors.  Call
1243         compute_subscript_distance.
1244         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1245         (compute_all_dependences): Reorder parameters as they were before
1246         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1247         compute_subscript_distance.  Update the use of
1248         compute_affine_dependence and initialize_data_dependence_relation.
1249         (find_data_references_in_loop): Handle COMPONENT_REF.
1250         (compute_data_dependences_for_loop): Initialize dependence_stats.
1251         Don't call build_classic_dist_vector and build_classic_dir_vector.
1252         Update the parameters of initialize_data_dependence_relation and
1253         compute_all_dependences.  Print the statistics from datadep_stats.
1254         (analyze_all_data_dependences): Static.  Not used until the pass for
1255         checking the data dependences is contributed.
1256         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1257         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1258         (initialize_data_dependence_relation, compute_affine_dependence,
1259         analyze_all_data_dependences, compute_subscript_distance): Removed.
1260         (print_direction_vector): New.
1261         * lambda.h (gcd): ... here.
1262         (lambda_vector_gcd): Moved here from gcd_vector.
1263         * lambda-code.c (gcd, gcd_vector): Removed.
1264         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1265         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1266
1267 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1268
1269         * ipa-type-escape.c: Tidy some comments and white space.
1270         * tree-ssa-operands.c: Likewise.
1271
1272 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1273
1274         PR tree-opt/25879
1275         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1276         (dump_decl_name): Do not walk the decl tree chains.
1277         * tree-pass.h (TDF_CHAIN): Remove.
1278
1279 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1280
1281         * Makefile.in (C): Remove
1282         (PROTO): Remove
1283         (.PHONY): Remove C and PROTO
1284
1285 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1286
1287         PR middle-end/26236
1288         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1289         deprecated CHAR_TYPE tree code.
1290
1291 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1292
1293         * configure.ac (target_list): Add install-info, dvi, html.
1294         * configure: Regenerate.
1295
1296         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1297         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1298         treelang/Make-lang.in: Do not use double-colon rules.
1299
1300 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1301
1302         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1303         (TMT_USED_ALONE): New macro.
1304         * tree-pass.h (PROP_tmt_usage): New property.
1305         (TODO_update_tmt_usage): New todo.
1306         * tree-ssa-alias.c (updating_used_alone): New variable.
1307         (recalculate_used_alone): New function.
1308         (compute_may_aliases): Set updating_used_alone, call
1309         recalculate_used_alone.
1310         * tree-sra.c (pass_sra): Note that this pass destroys
1311         PROP_tmt_usage, and add TODO_update_tmt_usage.
1312         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1313         * tree-flow.h (updating_used_alone): Prototype.
1314         (recalculate_used_alone): Ditto.
1315         * passes.c (execute_todo): Add code to set updating_used_alone,
1316         and call recalculate.
1317         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1318         for clobber if used alone, and add assert to verify used_alone
1319         status.
1320
1321 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1322
1323         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1324         for non tls symbols added.
1325         (legitimize_address): Do nothing for PLUS expressions if one of the
1326         addends is a tls symbol reference.
1327
1328 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1329
1330         PR bootstrap/25476
1331
1332         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1333
1334         * Makefile.in (BOOTSTRAPPING): New.
1335         (quickstrap): New definition if BOOTSTRAPPING=yes.
1336
1337         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1338         * configure.ac: Substitute all_selected_languages with the languages
1339         that were configured.  For all the other variables except
1340         lang_specs_files, include all the languages in the tree.
1341         * configure: Regenerate.
1342
1343         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1344         if there is one.  Run the commands to run fixincludes in the same
1345         subshell.
1346
1347         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1348         * doc/install.texi: Document exact conventions for searching target tools.
1349         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1350         something more about building an Ada cross-compiler.  Don't list GNU Make
1351         requirements which affect all platforms.
1352
1353 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1354
1355         PR middle-end/19543
1356         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1357         only equivalent if the have both the same mode and precision.
1358
1359 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1360
1361         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1362
1363 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1364             Steven Bosscher  <stevenb.gcc@gmail.com>
1365
1366         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1367         constant pool references to identify stack mode constants.
1368         * rtlanal.c (constant_pool_constant_p): New predicate to check
1369         whether operand is a floating point constant in the pool.
1370         * rtl.h (constant_pool_constant_p): Prototype here.
1371         * loop.c (scan_loop): Avoid hoisting constants from the constant
1372         pool on STACK_REGS targets.
1373         (load_mems): Likewise.
1374         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1375         loads into x87 registers expensive in terms of register pressure.
1376
1377 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1378
1379         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1380         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1381
1382 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1383
1384         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1385         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1386
1387 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1388
1389         * doc/invoke.texi: Document -fipa-pta.
1390         * common.opt: Add ipa-pta option.
1391         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1392         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1393         (do_ds_constraint): Ditto.
1394         (get_constraint_for): Only add to referenced_vars if
1395         referenced_vars exists.
1396         (insert_into_field_list): Rewrite to do this unsorted.
1397         (insert_into_field_list_sorted): Rename old insert_into_field_list
1398         to this.
1399         (create_function_info_for): Use insert_into_field_list_sorted.
1400         (create_variable_info_for): Rewrite so it uses unsorted version,
1401         since the field list is sorted.
1402         (intra_create_variable_infos): Only add to referenced_vars if
1403         referenced_vars exists.
1404         (ipa_pta_execute): Init heapvars, and delete when done.
1405         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1406
1407 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1408
1409         * doc/install.texi: Add missing `@samp'.
1410
1411 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1412
1413         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1414         Use the arguments.
1415
1416 2006-02-18  Mark Wielaard  <mark@klomp.org>
1417
1418         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1419         who added new 4.1 features, bug fixes and integration support.
1420
1421 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1422
1423         PR target/26350
1424         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1425         MEM for ABI_V4 pic.
1426
1427 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1428
1429         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1430         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1431         (copy_insn_1): Likewise.  Don't copy each field individually.
1432         Reindent.
1433         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1434         of RTX_SIZE.
1435         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1436         * rtl.c (rtx_size): Rename variable to...
1437         (rtx_code_size): ...this.
1438         (rtx_size): New function.
1439         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1440         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1441         Reindent.
1442         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1443         * rtl.h (rtx_code_size): New variable.
1444         (rtx_size): Change from a variable to a function.
1445         (RTX_SIZE): Rename to...
1446         (RTX_CODE_SIZE): ...this.
1447
1448         PR target/9703
1449         PR tree-optimization/17106
1450         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1451         (Anchored Addresses): New section.
1452         * doc/invoke.texi (-fsection-anchors): Document.
1453         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1454         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1455         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1456         * hooks.c (hook_bool_mode_rtx_false): New function.
1457         * hooks.h (hook_bool_mode_rtx_false): Declare.
1458         * gengtype.c (create_optional_field): New function.
1459         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1460         SYMBOL_REF_IN_BLOCK_P is true.
1461         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1462         (min_anchor_offset, max_anchor_offset): Likewise.
1463         (use_anchors_for_symbol_p): New hook.
1464         * toplev.c (compile_file): Call output_object_blocks.
1465         (target_supports_section_anchors_p): New function.
1466         (process_options): Check that -fsection-anchors is only used on
1467         targets that support it and when -funit-at-a-time is in effect.
1468         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1469         if the decl doesn't have one.
1470         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1471         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1472         of force_const_mem through use_anchored_address.
1473         (expand_expr_constant): New function.
1474         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1475         calling expand_expr for INDIRECT_REF.
1476         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1477         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1478         * expr.h (use_anchored_address): Declare.
1479         * loop-unroll.c: Don't declare rtx vectors here.
1480         * explow.c: Include output.h.
1481         (validize_mem): Call use_anchored_address.
1482         (use_anchored_address): New function.
1483         * common.opt (-fsection-anchors): New switch.
1484         * varasm.c (object_block_htab, anchor_labelno): New variables.
1485         (hash_section, object_block_entry_eq, object_block_entry_hash)
1486         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1487         (use_blocks_for_decl_p, change_symbol_section): New functions.
1488         (get_variable_section): New function, split out from assemble_variable.
1489         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1490         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1491         symbol has already been created.
1492         (assemble_variable_contents): New function, split out from...
1493         (assemble_variable): ...here.  Don't output any code for
1494         block symbols; just pass them to place_block_symbol.
1495         Use get_variable_section and assemble_variable_contents.
1496         (get_constant_alignment, get_constant_section, get_constant_size): New
1497         functions, split from output_constant_def_contents.
1498         (build_constant_desc): Create a block symbol if use_object_blocks_p
1499         says so.  Or into SYMBOL_REF_FLAGS.
1500         (assemble_constant_contents): New function, split from...
1501         (output_constant_def_contents): ...here.  Don't output any code
1502         for block symbols; just pass them to place_section_symbol.
1503         Use get_constant_section and get_constant_alignment.
1504         (force_const_mem): Create a block symbol if use_object_blocks_p and
1505         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1506         (output_constant_pool_1): Add an explicit alignment argument.
1507         Don't switch sections here.
1508         (output_constant_pool): Adjust call to output_constant_pool_1.
1509         Switch sections here instead.  Don't output anything for block symbols;
1510         just pass them to place_block_symbol.
1511         (init_varasm_once): Initialize object_block_htab.
1512         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1513         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1514         (place_block_symbol, get_section_anchor, output_object_block)
1515         (output_object_block_htab, output_object_blocks): New functions.
1516         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1517         (TARGET_ASM_OUT): Include it.
1518         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1519         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1520         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1521         (TARGET_INITIALIZER): Include them.
1522         * rtl.c (rtl_check_failed_block_symbol): New function.
1523         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1524         (block_symbol, object_block): New structures.
1525         (rtx_def): Add a block_symbol field to the union.
1526         (BLOCK_SYMBOL_CHECK): New macro.
1527         (rtl_check_failed_block_symbol): Declare.
1528         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1529         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1530         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1531         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1532         * output.h (output_section_symbols): Declare.
1533         (object_block): Name structure.
1534         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1535         (default_use_anchors_for_symbol_p): Declare.
1536         * Makefile.in (RTL_BASE_H): Add vec.h.
1537         (explow.o): Depend on output.h.
1538         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1539         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1540         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1541         (rs6000_use_blocks_for_constant_p): New function.
1542
1543 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1544
1545         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1546
1547 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1548
1549         PR tree-opt/25680
1550         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1551         IMAGPART_EXPR.
1552
1553 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1554
1555         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1556         is_aliased.
1557         Update all users.
1558
1559 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1560
1561         PR middle-end/26334
1562         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1563         instead of DECL_REGISTER.
1564
1565 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1566
1567         PR ada/13408
1568         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1569
1570 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1571
1572         PR target/24837
1573         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1574         * opth-gen.awk: Handle Var and InverseMask together.
1575         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1576         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1577         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1578         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1579         used together.
1580         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1581         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1582         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1583         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1584         LINUX_DYNAMIC_LINKER): Define.
1585         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1586         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1587         TARGET_GLIBC.
1588         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1589         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1590         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1591         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1592         (TARGET_C99_FUNCTIONS): Don't define.
1593         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1594         GLIBC_DYNAMIC_LINKER.
1595         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1596         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1597         GLIBC_DYNAMIC_LINKER64): Define.
1598         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1599         LINUX_DYNAMIC_LINKER64.
1600         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1601         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1602         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1603         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1604         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1605         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1606         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1607         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1608         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1609         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1610         and LINUX_DYNAMIC_LINKER32.
1611         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1612         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1613         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1614         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1615         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1616         TARGET_GLIBC.
1617         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1618         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1619         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1620         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1621         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1622         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1623         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1624         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1625         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1626         LINUX_DYNAMIC_LINKER): Define.
1627         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1628         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1629         GLIBC_DYNAMIC_LINKER64): Define.
1630         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1631         LINUX_DYNAMIC_LINKER64.
1632         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1633         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1634         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1635         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1636         LINUX_DYNAMIC_LINKER): Define.
1637         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1638         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1639         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1640         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1641         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1642         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1643         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1644         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1645         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1646         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1647         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1648         * doc/invoke.texi (-muclibc): Remove caveat about supported
1649         targets.
1650
1651 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1652
1653         * doc/cpp.texi (__TIMESTAMP__): Document.
1654
1655 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1656
1657         PR middle-end/25600
1658         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1659         C is one less than the width of X (and related transformations).
1660         * simplify-rtx.c (simplify_unary_operation_1): Transform
1661         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1662         depending on STORE_FLAG_VALUE, were C is one less then the
1663         width of X.
1664
1665 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1666
1667         Fix PR tree-optimization/26341
1668         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1669         about NAME_MEMORY_TAG's.
1670
1671 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1672
1673         PR target/26255
1674         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1675         with hardware float support, and software float support.  Add fcpy
1676         alternative to hardware patterns.  Add alternatives to copy between
1677         general and floating-point registers to the 32-bit pattern.
1678         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1679         secondary reload to load a QI or HI mode constant into a floating
1680         point register.
1681         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1682         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1683
1684 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1685
1686         PR target/26272
1687         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1688         pc to the pattern.
1689         (load_macho_picbase_di): Likewise.
1690
1691 2006-02-16  Jeff Law  <law@redhat.com>
1692
1693         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1694         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1695         (ssa_name_nonzero_p): Likewise.
1696         (get_value_range): Return NULL if VRP is not running.
1697         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1698         VRP routines do not discover a range.
1699         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1700         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1701         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1702         (tree_expr_nonnegative_p): Similarly.
1703         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1704         (restore_nonzero_vars_to_original_value): Remove.
1705         (unsafe_associative_fp_binop): Remove.
1706         (tree_ssa_dominator_optimize): Remove initialization and
1707         finalization of nonzero_vars and nonzero_vars_stack.
1708         (dom_opt_initialize_block): No longer push marker on
1709         nonzero_vars_stack.
1710         (dom_opt_finalize_block): No longer call
1711         restore_nonzero_vars_to_original_value.
1712         (record_equivalences_from_phis): No longer look for
1713         nonzero PHI arguments.
1714         (cprop_into_successor_phis): No longer propagate nonzero
1715         property into PHI arguments.  Lose unused argument.  Caller
1716         updated.
1717         (record_equivalences_from_stmt): No longer record nonzero
1718         values for SSA_NAMEs.
1719         (lookup_avail_expr): No longer use nonzero_vars.
1720
1721         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1722         for sizetype when sizetype is unsigned.
1723
1724 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1725
1726         PR rtl-optimization/25603
1727         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1728         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1729         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1730         with new meaning of SETS.
1731
1732 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1733
1734         PR target/20353
1735         PR target/24578
1736         PR target/24837
1737         * config/linux.opt: New file.
1738         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1739         LINUX_DYNAMIC_LINKER): Define.
1740         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1741         * config.gcc (*-*-linux*): Define extra_options.
1742         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1743         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1744         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1745         GLIBC_DYNAMIC_LINKER.
1746         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1747         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1748         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1749         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1750         * doc/invoke.texi (GNU/Linux Options): New section.
1751
1752 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1753
1754         * config/sparc/sparc.md (setjmp): Rewrite.
1755         (setjmp_32): Delete.
1756         (setjmp_64): Likewise.
1757
1758 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1759
1760         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1761          previous change.
1762
1763 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1764
1765         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1766         read-write uses.
1767
1768 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1769
1770         PR rtl-optimization/26296
1771         * Makefile.in (loop-invariant.c): Add except.h dependency.
1772         * loop-invariant.c: Include except.h.
1773         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1774
1775 2005-02-16  Paul Brook  <paul@codesourcery.com>
1776
1777         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1778         for reloads.
1779
1780 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1781
1782         PR rtl-optimization/25636
1783         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1784         when deciding whether an insn is an initializing insn.
1785
1786 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1787
1788         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1789         (tree_code_size): Ditto.
1790         * tree.h (struct tree_memory_tag): Remove parent_var.
1791         (struct tree_struct_field_tag): New.
1792         (SFT_OFFSET): New.
1793         (SFT_SIZE): New.
1794         (union tree_node): Add sft member.
1795         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1796         specially here.
1797         (create_sft): Add size and offset argument, set SFT_OFFSET and
1798         SFT_SIZE.
1799         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1800         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1801         * tree-flow-inline.h (get_subvar_at): Update for
1802         SFT_OFFSET/SFT_SIZE.
1803         (var_can_have_subvars): Ditto.
1804         (overlap_subvar): Ditto.
1805         * print-tree.c (print_node): Print out interesting things for
1806         SFT's.
1807         * tree-flow.h (struct subvar): Remove offset and size members.
1808         * tree-ssa-operands.c (get_expr_operands): Update for
1809         get_indirect_ref_operands changes.
1810         (get_indirect_ref_operands): Call add_virtual_operand instead of
1811         add_stmt_operand.  Only recurse on base var if requested.
1812         (access_can_touch_variable): New function.
1813         (add_stmt_operand): Split virtual operand handling into ...
1814         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1815         arguments.  Prune alias sets.
1816         (add_call_clobber_ops): Call add_virtual_operand.
1817
1818 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1819
1820         PR middle-end/26300
1821         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1822
1823         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1824         than TREE_CODE as index into omp_clause_num_ops array.
1825
1826 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1827
1828         PR rtl-optimization/26184
1829         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1830         uses_of_defs.
1831         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1832         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1833         must_precede, must_follow and tobe_scheduled.
1834
1835         PR other/26147
1836         * opts.c (common_handle_option): Free new_option pointer.
1837         * df-core.c (df_analyze): Free postorder pointer.
1838
1839 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1840
1841         * Makefile.in: Fix the examples about the use of stamps
1842
1843 2006-02-15  Michael Matz  <matz@suse.de>
1844
1845         PR middle-end/22275
1846
1847         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1848         influenced by maximum_field_alignment or DECL_PACKED.
1849         (update_alignment_for_field): Ditto.
1850         (place_field): Ditto.
1851         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1852         this behaviour.
1853
1854 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1855
1856         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1857         (debug_flow_info): Pass it.
1858         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1859         * bb-reorder.c (reorder_basic_blocks): Likewise.
1860         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1861         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1862         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1863         * gcse.c (gcse_main, bypass_jumps): Likewise.
1864         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1865         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1866         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1867         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1868         * rtl.h (dump_flow_info): Adjust prototype.
1869         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1870         * var-tracking.c (variable_tracking_main): Likewise.
1871         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1872         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1873         options.
1874
1875 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1876
1877         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1878         construction.
1879
1880 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1881
1882         PR tree-optimization/26209
1883         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1884         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1885         eh edges.
1886         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1887
1888 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1889
1890         PR middle-end/23670
1891         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1892         (X,Y) and the corresponding symmetry related transformations.
1893         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1894         (X,Y) and its symmetry related transformations.
1895
1896 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1897
1898         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1899         and GEU.
1900
1901 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1902
1903         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1904
1905 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1906
1907         PR bootstrap/26053
1908         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1909         support COMDAT group.
1910         * configure: Regenerate.
1911
1912 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1913
1914         PR middle-end/26279
1915         PR middle-end/26280
1916         PR middle-end/26283
1917         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1918
1919 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1920
1921         Fix PR tree-optimization/26260
1922
1923         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1924         param.
1925         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1926         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1927         * tree-ssa-structalias.c (create_variable_info_for): Use
1928         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1929
1930 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1931
1932         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1933         Document.
1934         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1935         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1936         of the ending condition.
1937         * tree-ssa-loop-manip.c: Include params.h.
1938         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1939         tree_unroll_loop): New functions.
1940         * tree-pass.h (pass_loop_prefetch): Declare.
1941         * loop.c (rest_of_handle_loop_optimize): Test for
1942         -fprefetch-loop-arrays-rtl.
1943         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1944         * timevar.def (TV_TREE_PREFETCH): New timevar.
1945         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1946         pass_loop_prefetch): New.
1947         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1948         (cleanup_tree_cfg_loop): Call scev_reset.
1949         * common.opt (fprefetch-loop-arrays-rtl): Add.
1950         * tree-ssa-loop-prefetch.c: New file.
1951         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1952         (new_temp_expr_table): Initialize expr_vars.
1953         (free_temp_expr_table): Cleanup expr_vars.
1954         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1955         expressions from being merged into one.
1956         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1957         (struct tree_niter_desc): Add control, bound and cmp fields.
1958         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1959         Declare.
1960         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1961         (tree-cfgcleanup.o): Add SCEV_H dependency.
1962         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1963         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1964
1965 2006-02-14  Richard Guenther  <rguenther@suse.de>
1966
1967         PR tree-optimization/26258
1968         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1969         in PHI argument processing.
1970
1971 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1972
1973         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1974         new expression in the requested machine mode.
1975
1976 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1977
1978         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1979         directly, instead let do_compare_rtx_and_jump handle this for us.
1980         * expr.c (expand_expr_real_1): Likewise.
1981         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1982         before do_jump_by_parts_greater.
1983         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1984         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1985
1986 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1987
1988         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1989
1990 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1991
1992         PR rtl-optimization/26235
1993         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1994         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1995         format.
1996
1997 2006-02-13  Jeff Law  <law@redhat.com>
1998
1999         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2000         TRUTH_XOR_EPR.
2001
2002 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2003
2004         PR middle-end/26092
2005         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2006         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2007         first to verify it is still a builtin.
2008
2009 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2010
2011         * dwarf2out.c (base_type_die): Don't add AT_name here.
2012         (subrange_type_die): Don't add AT_name here.
2013         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2014
2015 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2016
2017         PR rtl-optimization/26247
2018         PR rtl-optimization/26248
2019         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2020
2021 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2022
2023         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2024         * config/fixtfdi.c: Likewise.
2025         * config/fixunstfdi.c: Likewise.
2026         * config/floatditf.c: Likewise.
2027
2028 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2029
2030         PR middle-end/24427
2031         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2032         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2033         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2034         (X&(C1&~C2))|C2.
2035         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2036
2037 2006-02-13  Josh Conner  <jconner@apple.com>
2038
2039         PR target/25376
2040         * varasm.c (function_section): Check for section name before
2041         calling select_section on targets that define
2042         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2043         unlikely_text_section instead of hot_function_section if
2044         first_function_block_is_cold.
2045
2046 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2047
2048         PR middle-end/25335
2049         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2050
2051 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2052
2053         PR rtl-optimization/26222
2054         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2055         after tree->rtl expansion.
2056         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2057         before passing it to emit_move_insn.
2058
2059 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2060
2061         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2062         default.
2063         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2064         Clarify documentation.
2065         * c-common.h (warn_write_strings): Remove.
2066         * c-common.c (warn_write_strings): Likewise.
2067         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2068         default for C++.
2069
2070 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2071
2072         PR middle-end/25724
2073         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2074         (do_jump_parts_zero_rtx): New function renamed from
2075         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2076         (do_jump_parts_equality_rtx): New function split out from
2077         do_jump_parts_equality.  Old implementation renamed as above.
2078         Call do_jump_parts_zero_rtx if either operand is zero.
2079         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2080         do all of the heavy lifting.
2081         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2082         calling either do_jump_by_parts_greater_rtx or
2083         do_jump_by_parts_equality_rtx.
2084         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2085         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2086         moved to do_compare_rtx_and_jump, call it directly.
2087         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2088         mode argument.  Call do_compare_rtx_and_jump.
2089         (emit_case_nodes): Update calls to do_jump_if_equal.
2090
2091 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2092
2093         PR rtl-optimization/26225
2094         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2095
2096 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2097
2098         PR rtl-optimization/26232
2099         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2100
2101 2006-02-11  Jason Merrill  <jason@redhat.com>
2102
2103         PR tree-opt/24365
2104         * tree-inline.c (declare_return_variable): Just don't use the
2105         modify target if it's a gimple complex reg and the return slot
2106         isn't.
2107
2108 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2109
2110         * doc/contrib.texi: Update my entry.
2111
2112 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2113
2114         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2115
2116 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2117
2118         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2119         expensive.
2120
2121 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2122
2123         * doc/invoke.texi (-floop-optimize2): Removed.
2124         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2125         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2126         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2127         * common.opt (floop-optimize2): Removed.
2128         (fmove-loop-invariants): Enabled by default.
2129
2130 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2131
2132         * tree-if-conv.c (combine_blocks): Free the result of
2133         get_loop_exit_edges.
2134
2135 2006-02-10  Jeff Law  <law@redhat.com>
2136
2137         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2138
2139         PR tree-optimization/26213
2140         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2141         loop trying to follow SSA_NAME_VALUE chains.
2142
2143 2006-02-10  Richard Guenther  <rguenther@suse.de>
2144
2145         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2146         deal with structures that end in implicitly variable sized arrays.
2147
2148 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2149
2150         PR rtl-optimization/24762
2151         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2152         eh edges.
2153
2154 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2155
2156         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2157         (struct ivopts_data): Add regs_used field.
2158         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2159         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2160         instead of loop_data->regs_used;
2161         (free_loop_data): Do not free aux fields for loops.
2162         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2163         and tree_ssa_iv_optimize_finalize.
2164
2165 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2166
2167         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2168
2169 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2170
2171         PR target/26141
2172         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2173         computing the effective result type.
2174
2175 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2176
2177         PR inline-asm/16194
2178         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2179         (tree_overlaps_hard_reg_set): Declare.
2180         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2181         type and signature to match function type expected by walk_tree.
2182         (tree_overlaps_hard_reg_set): New function.
2183         (decl_conflicts_with_clobbers_p): Rename to:
2184         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2185         Use tree_overlaps_hard_reg_set.  Changed caller.
2186         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2187         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2188         * cris.c (cris_md_asm_clobbers): Likewise.
2189
2190 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2191
2192         * reload1.c (emit_input_reload_insns): Delete code that tries to
2193         inherit using find_equiv_reg.
2194
2195 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2196
2197         * c-common.h (flag_const_strings): Don't declare.
2198         * c-common.c (flag_const_strings): Remove.
2199         * c.opt (fconst_strings): Remove.
2200         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2201         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2202         (c_common_init_options): Don't set flag_const_strings.
2203         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2204
2205 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2206
2207         * arm.md (tlobits_cbranch): New pattern.
2208         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2209         testing a single bit.
2210
2211 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2212
2213         PR tree-opt/26179
2214         * tree-ssa-pre.c (create_component_ref_by_pieces):
2215         Handle RETURN_DECL like VAR_DECL.
2216
2217 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2218
2219         PR middle-end/26134
2220         * fold-const.c (fold_indirect_ref_1): Fold
2221         "*(foo *)&complexfoo" to "__real__ complexfoo"
2222         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2223
2224 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2225
2226         * tree-flow-inline.h (var_can_have_subvars):
2227         Volatile variables should not have subvariables.
2228
2229 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2230
2231         PR 26180
2232         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2233         multiplying unsigned values.
2234         Tidy comments.
2235
2236 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2237
2238         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2239
2240 2006-02-08  Jason Merrill  <jason@redhat.com>
2241
2242         PR c++/25979
2243         * tree.def: Elaborate on difference from MODIFY_EXPR.
2244         * doc/c-tree.texi (INIT_EXPR): Likewise.
2245         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2246         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2247         (gimplify_target_expr): Likewise.
2248         (gimplify_cond_expr): Remove target handling.
2249         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2250         (gimplify_expr): Clobber it here.
2251         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2252         Do return slot optimization if we have an INIT_EXPR.
2253
2254         PR tree-opt/24365
2255         * tree-inline.c (declare_return_variable): Also clear
2256         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2257
2258         PR c++/16405
2259         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2260
2261         PR middle-end/22439
2262         * gimplify.c (gimplify_one_sizepos): Fix typo.
2263
2264 2006-02-08  Jeff Law  <law@redhat.com>
2265
2266         PR tree-optimization/21417
2267         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2268         across a backedge if the control statement at the end of the
2269         block is data dependent on other statements in the same block.
2270         (record_temporary_equivalences_from_stmts): Remove over-conservative
2271         test for threading across backedges.
2272
2273         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2274         control statement, handle all three special cases in the same
2275         manner as they all have the same desired solution.  No longer
2276         special case edge flag updating when the post dominator is
2277         the exit block.
2278
2279 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2280
2281         * tree.def (CHAR_TYPE): Remove.
2282         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2283         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2284         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2285         (gen_string_type_die): Delete unreachable function.
2286
2287         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2288         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2289         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2290         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2291         * builtins.c (type_to_class): Likewise.
2292         * fold-const.c (fold_convert, build_range_check,
2293         merge_ranges): Likewise.
2294         * expr.c (count_type_elements): Likewise.
2295         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2296         * stor-layout.c (layout_type): Likewise.
2297         * ipa-type-escape.c (type_to_consider): Likewise.
2298         * gimplify.c (omp_firstprivatize_type_sizes,
2299         gimplify_type_sizes): Likewise.
2300         * explow.c (promote_mode): Likewise.
2301         * tree-sra.c (is_sra_scalar_type): Likewise.
2302         * varasm.c (output_constant): Likewise.
2303         * tree-inline.c (remap_type_1): Likewise.
2304         * convert.c (convert_to_pointer, convert_to_real,
2305         convert_to_integer, convert_to_complex): Likewise.
2306
2307 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2308
2309         * df-scan.c (df_def_record_1): A set destination may
2310         be a parallel regardless of mode.
2311
2312 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2313
2314         PR target/22209
2315         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2316         * config/mips/_tilib.c: Remove.
2317         * config/fixtfdi.c: New libgcc source file.
2318         * config/fixunstfdi.c: New source file.
2319         * config/floatditf.c: New source file.
2320         * config/floatunditf.c: New souce file.
2321         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2322         files above instead of config/mips/_tilib.c.
2323         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2324
2325 2006-02-08  Jeff Law  <law@redhat.com>
2326
2327         PR tree-optimization/26169
2328         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2329         threading jumps.
2330
2331 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2332
2333         * df.h (DF_REG_SIZE): Return the length of the initialized
2334         part of the array.
2335
2336 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2337
2338         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2339         __muldf3): Return a correctly signed zero.
2340
2341 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2342
2343         * passes.c (register_one_dump_file): Accept the current properties
2344         instead of pass number.  Adjust call to dump_register.  Remove
2345         duplicated code.
2346         (register_dump_files): Now a wrapper around...
2347         (register_dump_files_1): ... this one.  Do not modify the pass
2348         structure.
2349         (next_pass_1): Cosmetic fix.
2350         (execute_todo): Keep second parameter only.  Use curr_properties
2351         instead of fetching it from the pass structure.  Check and set
2352         last_verified.
2353         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2354         instead of fetching it from the pass structure.  Fix calls to
2355         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2356         after running the pass.  Reset last_verified.
2357         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2358         at the beginning.
2359         (FIRST_AUTO_NUMBERED_DUMP): New.
2360         (dump_register): Remove "num" parameter, assign it within the
2361         function.
2362         (get_dump_file_name): Modify template for dumps.
2363         * tree-dump.h (dump_register): Adjust prototype.
2364         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2365         (PROP_trees): Add PROP_gimple_lomp.
2366         (TODO_set_props): New.
2367         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2368         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2369         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2370
2371 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2372
2373         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2374         (sparc64-*-linux*): Likewise.
2375         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2376         * config/sparc/t-linux: New file.
2377         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2378         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2379         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2380         -m32 -mlong-double-128.
2381
2382         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2383         * config/alpha/t-linux: New file.
2384         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2385
2386         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2387         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2388         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2389         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2390         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2391         (CPP_ARCH32_SPEC): Remove.
2392
2393 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2394
2395         PR tree-optimization/26145
2396         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2397         bbs pointer.
2398
2399 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2400
2401         PR target/26109
2402         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2403         >= 240000 when generating code for SOM runtime.
2404         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2405         to $$dyncall when generating code for SOM runtime..
2406
2407 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2408
2409         PR c++/18150
2410         * doc/invoke.texi (-Wsequence-point): Update documentation
2411         that -Wsequence-point is implemented for C++ as well.
2412
2413 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2414
2415         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2416         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2417         (LIB_SPEC): Likewise.
2418         * doc/invoke.texi (SPARC options): Document -pthread.
2419
2420 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2421
2422         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2423         PIC addresses.
2424
2425 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2426
2427         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2428         Correct comment describing BOOLEAN_TYPE.
2429
2430 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2431
2432         * c.opt: C++ frontend supports -Wdiv-by-zero.
2433         * c-opts.c (c_common_handle_option): Remove dead case.
2434
2435 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2436
2437         * configure.ac (TLS assembler check): Do not enable TLS by
2438         default on SPARC/Solaris before version 10.
2439         * configure: Regenerate.
2440
2441 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2442
2443         * doc/invoke.texi (xl-compat): Document conversion and support
2444         routine names.
2445
2446 2006-02-07  Jeff Law  <law@redhat.com>
2447
2448         * tree-vrp.c (find_conditional_asserts): Update comments.
2449         (simplify_stmt_for_jump_threading): New.
2450         (identify_jump_threads, finalize_jump_threads): New.
2451         (vrp_finalize): Call identify_jump_threads.
2452         (execute_vrp): Call finalize_jump_threads.
2453         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2454         (vrp_element, vrp_data, vrp_element_p): Remove.
2455         (vrp_hash_elt, vrp_variables_stack): Remove.
2456         (vrp_hash, vrp_eq, record_range): Remove.
2457         (simplify_cond_and_lookup_avail_expr): Remove.
2458         (extract_range_from_cond): Remove.
2459         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2460         (simplify_stmt_for_jump_threading): New.
2461         (dom_thread_across_edge): New wrapper.
2462         (tree_ssa_dominator_optimize): No longer initialize or
2463         finalize any of the VRP datastructures.  Remove iteration
2464         step and simplify as a result of removal of iteration step.
2465         (pass_dominator): Perform a cfg cleanup after DOM.
2466         (dom_opt_finalize_block): Use the new common routines
2467         for threading jumps.  Simplify stack management slightly.
2468         No longer need to unwind VRP state.
2469         (record_equivalences_from_incoming_edge): No longer record
2470         VRP information.
2471         (eliminate_redundant_computations): No longer call
2472         simplify_cond_and_lookup_avail_expr.
2473         * tree-flow.h (potentially_threadable_block): Prototype.
2474         (thread_across_edge): Likewise.
2475         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2476         (tree-ssa-threadedge.o): Add dependencies.
2477         * tree-ssa-threadedge.c: New file.
2478         * passes.c (init_optimization_passes): Merge PHIs before
2479         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2480
2481 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2482
2483         * df-core.c (df_set_blocks): Do not dereference function pointers.
2484         (df_finish1): Likewise.
2485         (df_hybrid_search_forward): Likewise.
2486         (df_hybrid_search_backward): Likewise.
2487         (df_iterative_dataflow): Likewise.
2488         (df_analyze_problem): Likewise.
2489         (df_compact_blocks): Likewise.
2490         (df_dump): Likewise.
2491         * df-scan.c (df_rescan_blocks): Likewise.
2492         (df_record_entry_block_defs): Likewise.
2493
2494         * genconditions.c (write_conditions): Guard the definition of
2495         'insn_conditions' with the check on GCC version.
2496         (write_writer): Guard the traversal 'insn_conditions' with
2497         the check on GCC version.
2498
2499 2006-02-07  Richard Guenther  <rguenther@suse.de>
2500
2501         PR c++/26140
2502         Revert
2503         2006-01-30  Richard Guenther  <rguenther@suse.de>
2504         PR c++/23372
2505         * gimplify.c (gimplify_target_expr): Handle easy cases
2506         without creating a temporary.
2507
2508 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2509
2510         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2511         use of float in probability computations.  Use edge probabilities
2512         in place of statically computed probabilities.
2513         (min_spec_prob): New static variable.
2514         (schedule_insns): Initialize it.
2515         (GET_SRC_PROB): Removed.
2516         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2517
2518 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2519
2520         PR debug/24444
2521         * config/ia64/unwind-ia64.c: Revert last change.
2522         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2523         (INCOMING_FRAME_SP_OFFSET): Define.
2524
2525 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2526
2527         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2528
2529 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2530
2531         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2532         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2533         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2534         (ix86_return_in_memory): Handle TDmode.
2535         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2536         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2537
2538 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2539
2540         * reorg.c (dbr_schedule): Use dump_file instead of file.
2541
2542 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2543
2544         PR target/25917
2545         * config/ia64/predicates.md (extr_len_operand): New predicate.
2546         * config/ia64/ia64.md (extv): Tighten constraints.
2547         (extzv): Ditto.
2548         (*tbit_and_2): Ditto.
2549         (*tbit_and_3): Ditto.
2550         (*tbit_or_2): Ditto.
2551         (*tbit_or_3): Ditto.
2552         (*bit_zero): Ditto.
2553         (*bit_one): Ditto.
2554
2555 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2556
2557         PR target/23359
2558         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2559
2560 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2561
2562         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2563         loop_optimizer_init and loop_optimizer_finalize
2564         * tree-ssa-sink.c (execute_sink_code): Ditto.
2565         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2566         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2567         tree_ssa_loop_done): Ditto.
2568         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2569         * sched-ebb.c: Include output.h.
2570         (schedule_ebbs): Do not use dump argument.
2571         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2572         * loop.c (loop_dump_stream): Removed.
2573         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2574         argument.
2575         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2576         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2577         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2578         loop_iterations, strength_reduce, record_biv, record_giv,
2579         final_giv_value, check_final_value, check_ext_dependent_givs,
2580         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2581         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2582         dump_file instead of loop_dump_stream.
2583         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2584         argument dump_file.
2585         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2586         dump argument.
2587         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2588         * haifa-sched.c: Include output.h
2589         (schedule_insns, sched_init): Do not use dump argument.
2590         * mode-switching.c (optimize_mode_switching): Ditto.
2591         * modulo-sched.c (stats_file): Removed.
2592         (print_node_sched_params): Do not call argument dump_file.
2593         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2594         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2595         of stats_file.
2596         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2597         use dump argument.
2598         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2599         rtl_loop_init, rtl_loop_done): Ditto.
2600         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2601         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2602         Ditto.
2603         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2604         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2605         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2606         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2607         * emit-rtl.c (renumber_insns): Ditto.
2608         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2609         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2610         * regclass.c (regclass): Ditto.
2611         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2612         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2613         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2614         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2615         Ditto.
2616         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2617         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2618         to regclass.
2619         * gcse.c (gcse_file, debug_stderr): Removed.
2620         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2621         rest_of_handle_gcse): Do not use dump argument.
2622         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2623         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2624         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2625         compute_code_hoist_vbeinout, compute_code_hoist_data,
2626         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2627         compute_store_table, build_store_vectors, insert_insn_start_bb,
2628         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2629         store_motion): Use dump_file instead of gcse_file.
2630         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2631         * profile.c (profile_dump_file): Removed.
2632         (branch_prob): Use dump_file instead of profile_dump_file.
2633         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2634         dump_file.
2635         * tree-ssa-copy.c (dump_copy_of): Ditto.
2636         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2637         dump file to life_analysis.
2638         * bt-load.c (branch_target_load_optimize): Ditto.
2639         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2640         renumber_insns.
2641         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2642         regclass, dbr_schedule): Declaration changed.
2643         * sched-int.h (sched_init): Declaration changed.
2644         * tree-profile.c (tree_profile_dump_file): Removed.
2645         (tree_profile_hooks): Removed profile_dump_file hook.
2646         * rtl-profile (rtl_profile_dump_file): Removed.
2647         (rtl_profile_hooks): emoved profile_dump_file hook.
2648         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2649         changed.
2650         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2651         * tree-cfg.c (build_tree_cfg): Ditto.
2652         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2653         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2654         Declaration changed.
2655         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2656         life_analysis and schedule_insns.
2657         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2658         life_analysis.
2659         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2660         dbr_schedule.
2661         * config/mips/mips.c (mips_reorg): Ditto.
2662         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2663         schedule_ebbs.
2664
2665 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2666
2667         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2668         (s390_mangle_fundamental_type): New.
2669         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2670         Define.
2671
2672         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2673         (alpha_mangle_fundamental_type): New.
2674         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2675         Define.
2676
2677         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2678         Define.
2679         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2680         Define.
2681         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2682         (sparc_mangle_fundamental_type): New.
2683
2684 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2685
2686         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2687         (s390x-*-linux*): Likewise.
2688         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2689         * config/s390/t-linux: New file.
2690
2691 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2692
2693         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2694         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2695
2696 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2697
2698         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2699         (ANTIC_SAFE_LOADS): New macro.
2700         (find_or_generate_expression): Add prototype.
2701         (set_contains_value): Allow null set for sake of not always having
2702         to allocate ANTIC_SAFE_LOADS.
2703         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2704         Allow COMPONENT_REF too.
2705         (valid_in_set): Allow COMPONENT_REF.
2706         Check ANTIC_SAFE_LOADS too.
2707         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2708         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2709         rename.
2710         (can_PRE_operation): Add COMPONENT_REF.
2711         (create_component_ref_by_pieces): New function.
2712         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2713         (insert_aux): Move AGGREGATE_TYPE_P check here.
2714         (compute_avail): Set bb local stmt uids.
2715         (pass_pre): Use TODO_update_ssa_only_virtuals.
2716
2717 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2718
2719         * configure.ac: Unconditionally disable decimal float by default.
2720         * configure: Regenerate.
2721
2722 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2723
2724         * read-rtl.c (read_name): Terminate reading on EOF.
2725
2726 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2727
2728         * dfp.c (decimal_real_arithmetic): Change second argument type
2729         from int to enum tree_code. Do not always return true, but now
2730         return result of any call to decimal_do helper functions.
2731         * dfp.h (decimal_real_arithmetic): Update prototype.
2732
2733 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2734
2735         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2736
2737 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2738
2739         PR tree-opt/25251
2740         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2741         forced labels.
2742
2743 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2744
2745         * tree-vrp.c (cfg_loops): Removed.
2746         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2747         Use current_loops instead of cfg_loops.  Pass flags to
2748         loop_optimizer_init.
2749         * cfgloopmanip.c (fix_loop_structure): Update only available
2750         information.
2751         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2752         loop_optimizer_init.
2753         * modulo-sched.c (build_loops_structure): Removed.
2754         (sms_schedule): Use loop_optimizer_init.
2755         * loop-init.c (loop_optimizer_init): Use flags to determine
2756         which properties of loops to prepare.
2757         (rtl_loop_init): Pass flags to loop_optimizer_init.
2758         * tree-ssa-sink.c (execute_sink_code): Ditto.
2759         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2760         * tree-ssa-pre.c (init_pre): Ditto.
2761         * cfgloop.h (LOOPS_NORMAL): New.
2762         (loop_optimizer_init): Declaration changed.
2763
2764 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2765
2766         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2767         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2768         pa/t-pa.
2769         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2770         pa/t-pa.
2771         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2772         pa/x-ada.
2773         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2774         * pa/t-pa64: Delete quadlib.c rule.
2775         * pa/x-ada: Revert last change.
2776         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2777
2778 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2779
2780         PR rtl-optimization/26087
2781         * rtlanal.c (canonicalize_condition): Do not cross basic block
2782         boundaries.
2783
2784 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2785
2786         PR debug/24444
2787         * config/ia64/ia64.c: Include debug.h.
2788         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2789         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2790         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2791         (process_epilogue, process_set, process_for_unwind_directive):
2792         Output unwind info only if requested.  Add CFA info if requested.
2793         Add new arguments as needed.  Adjust callers.
2794         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2795         incorrect default.
2796         (DWARF2_FRAME_INFO): Define to zero.
2797         * config/ia64/unwind-ia64.c: Remove code that compensated for
2798         the CFA offset error fixed above.
2799         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2800         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2801         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2802         -funwind-tables and -fexceptions to enable frame info.
2803         (dwarf2out_frame_init): Define initial CFA even if
2804         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2805         DWARF2_UNWIND_INFO is nonzero, not just defined.
2806         (dwarf2out_frame_finish): Output non-EH call frame info only
2807         if DWARF2_FRAME_INFO is nonzero.
2808         (convert_cfa_to_loc_list,
2809         compute_frame_pointer_to_cfa_displacement): Define even if
2810         unwind info is not supported.
2811         (gen_subprogram_die): Use the above unconditionally.  Remove
2812         legacy alternate code.
2813         * toplev.c (compile_file): Compile in call to
2814         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2815         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2816
2817 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2818             Jakub Jelinek  <jakub@redhat.com>
2819
2820         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2821         IBM extended float format long double as "g" on powerpc*-linux.
2822
2823 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2824
2825         PR target/25926
2826         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2827         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2828
2829 2006-02-03  Jason Merrill  <jason@redhat.com>
2830
2831         PR c++/25979
2832         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2833
2834         PR middle-end/25977
2835         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2836         on the return slot if it's an NRV.
2837
2838 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2839
2840         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2841         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2842         rewrite_use): Do not handle USE_OUTER.
2843         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2844         add_iv_outer_candidates, may_replace_final_value,
2845         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2846         (find_interesting_uses_op): Functionality of
2847         find_interesting_uses_outer_or_nonlin moved here.
2848         (find_interesting_uses_outside): Use find_interesting_uses_op.
2849
2850 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2851
2852         PR target/25960
2853         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2854
2855 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2856             Ulrich Weigand  <uweigand@de.ibm.com>
2857
2858         PR target/25864
2859         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2860         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2861         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2862         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2863         and dxr fields.
2864         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2865         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2866         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2867         Define secondary reloads for TFmode moves.
2868         (constant_modes): Add TFmode.
2869         (NR_C_MODES): Set to 8.
2870         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2871         builtin define.
2872         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2873         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2874         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2875         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2876         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2877         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2878         (FPR mode macro): Add TFmode.
2879         (DSF mode macro): New.
2880         (<de>, <dee> mode attributes): Removed.
2881         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2882         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2883         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2884         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2885         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2886         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2887         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2888         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2889         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2890         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2891         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2892         "*negabs<mode>2", "sqrt<mode>2"):
2893         Changed <de> to <xde>. R constraint replaced by <Rf>.
2894         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2895         <Rf>.
2896         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2897         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2898         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2899         splitters.
2900         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2901         "extenddftf2", "extendsftf2"): New expanders.
2902         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2903         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2904         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2905         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2906         New options.
2907         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2908         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2909         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2910         __floatditf): Add a GCC_4.1.0 symbol version tag.
2911         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2912         the new options.
2913
2914 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2915
2916         PR target/25377
2917         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2918         Use targetm.binds_local_p instead of TREE_PUBLIC.
2919
2920 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2921
2922         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2923         on INTEGER_TYPEs to indicate that it denotes a character type.
2924         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2925         signed_char_type_node, unsigned_char_type_node and char_type_node.
2926         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2927         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2928         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2929
2930 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2931             Daniel Berlin  <dberlin@dberlin.org>
2932
2933         * tree-tailcall.c (arg_needs_copy_p): New function.
2934         (eliminate_tail_call): Use arg_needs_copy_p.
2935         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2936         (add_virtual_phis): New function.
2937
2938 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2939
2940         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2941         #ignore instead of #scratch for %g7 .register directive.
2942
2943 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2944
2945         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2946         object files.
2947
2948 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2949
2950         * flow.c (calculate_global_regs_live): Assert that there aren't any
2951         EDGE_FAKE edges.
2952
2953 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2954
2955         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2956         what its name says.
2957         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2958         bsi_after_labels iterator.
2959         * tree-if-conv.c (find_phi_replacement_condition,
2960         replace_phi_with_cond_modify_expr): Likewise.
2961         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2962         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2963
2964 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2965
2966         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2967
2968 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2969
2970         PR 25990
2971         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2972         array after growing it.
2973
2974 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2975
2976         PR middle-end/24901
2977         * fold-const.c (fold_checksum_tree): Change type of buf.
2978
2979 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2980
2981         * reload.c (push_secondary_reload): Initialize t_icode.
2982
2983 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2984
2985         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2986         -msoft-float -mlong-double-128 only issue a warning, but don't
2987         swich to DFmode long double.
2988
2989 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2990
2991         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2992         has a constant equivalent, iterate over equivalents for arg0,
2993         calling simplify_relational_operation and if there's a result
2994         cheaper than X, apply fold_rtx and return the result.
2995
2996 2006-02-01  Jan Hubicka  <jh@suse.cz>
2997
2998         * opts.c (no_unit_at_a_time_default): New global variable.
2999         (decode_options): Use it.
3000         * opts.h (no_unit_at_a_time_default): Declare.
3001
3002 2006-02-01  Paul Brook  <paul@codesourcery.com>
3003
3004         * function.c (assign_parm_setup_reg): Use function argument promotion
3005         rules.
3006         * expr.c (expand_expr_real_1): Use function argument promotion rules
3007         for PARM_DECLs.
3008
3009 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3010
3011         * gcc.c (process_command): Change j to 'unsigned int'.
3012
3013 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3014
3015         PR middle-end/26001
3016         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3017         Use the corrected index for the character
3018         out of the string constant.
3019
3020 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3021
3022         * mode-switching.c (optimize_mode_switching): Fix size
3023         allocated for bb_info[n_entities].
3024
3025 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3026
3027         * gcc.c (main): Correct type that is allocated for
3028         explicit_link_files.
3029
3030 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3031
3032         * config/s390/s390.c (init_alignment_context): Set
3033         ALIAS_SET_MEMORY_BARRIER on the MEM.
3034         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3035
3036 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3037
3038         PR middle-end/25933
3039         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3040         dom_bbs pointer.
3041         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3042         call to tpa_init.
3043
3044 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3045
3046         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3047         * regrename.c: Ditto.
3048         * tree-ssa-loop-im.c: Ditto.
3049         * tree-dump.c: Ditto.
3050         * tree-complex.c: Ditto.
3051         * genrecog.c: Ditto.
3052         * tree-ssa-threadupdate.c: Ditto.
3053         * tracer.c: Ditto.
3054         * java/class.c: Ditto.
3055         * java/jcf-parse.c: Ditto.
3056         * java/resource.c: Ditto.
3057         * java/except.c: Ditto.
3058         * java/jvspec.c: Ditto.
3059         * java/jcf-write.c: Ditto.
3060         * java/jcf-path.c: Ditto.
3061         * java/gjavah.c: Ditto.
3062         * java/zextract.c: Ditto.
3063         * java/jcf-io.c: Ditto.
3064         * java/jcf.h: Ditto.
3065         * java/buffer.c: Ditto.
3066         * java/lang.c: Ditto.
3067         * java/parse-scan.y: Ditto.
3068         * java/lex.c: Ditto.
3069         * java/lex.h: Ditto.
3070         * cfgloopmanip.c: Ditto.
3071         * postreload-gcse.c: Ditto.
3072         * tree-ssa-loop-manip.c: Ditto.
3073         * postreload.c: Ditto.
3074         * tree-ssa-loop-ch.c: Ditto.
3075         * loop.c: Ditto.
3076         * ipa-cp.c: Ditto.
3077         * cppspec.c: Ditto.
3078         * diagnostic.c: Ditto.
3079         * final.c: Ditto.
3080         * genoutput.c: Ditto.
3081         * gcc.c: Ditto.
3082         * cfghooks.c: Ditto.
3083         * cfgloopanal.c: Ditto.
3084         * objc/objc-act.c: Ditto.
3085         * gcov.c: Ditto.
3086         * genextract.c: Ditto.
3087         * genautomata.c: Ditto.
3088         * pretty-print.c: Ditto.
3089         * genemit.c: Ditto.
3090         * cgraphunit.c: Ditto.
3091         * flow.c: Ditto.
3092         * df-scan.c: Ditto.
3093         * haifa-sched.c: Ditto.
3094         * dominance.c: Ditto.
3095         * dbxout.c: Ditto.
3096         * tree-ssa-loop-ivopts.c: Ditto.
3097         * df-core.c: Ditto.
3098         * mode-switching.c: Ditto.
3099         * modulo-sched.c: Ditto.
3100         * graph.c: Ditto.
3101         * ipa-pure-const.c: Ditto.
3102         * cse.c: Ditto.
3103         * fix-header.c: Ditto.
3104         * web.c: Ditto.
3105         * tree-stdarg.c: Ditto.
3106         * ipa-utils.c: Ditto.
3107         * loop-init.c: Ditto.
3108         * ipa-inline.c: Ditto.
3109         * cfganal.c: Ditto.
3110         * global.c: Ditto.
3111         * alloc-pool.c: Ditto.
3112         * dwarf2out.c: Ditto.
3113         * opts.c: Ditto.
3114         * genattrtab.c: Ditto.
3115         * tree-ssa-loop-ivcanon.c: Ditto.
3116         * predict.c: Ditto.
3117         * timevar.c: Ditto.
3118         * lcm.c: Ditto.
3119         * fortran/gfortranspec.c: Ditto.
3120         * regmove.c: Ditto.
3121         * local-alloc.c: Ditto.
3122         * langhooks.c: Ditto.
3123         * function.c: Ditto.
3124         * tree-vectorizer.c: Ditto.
3125         * gcse.c: Ditto.
3126         * ipa-type-escape.c: Ditto.
3127         * alias.c: Ditto.
3128         * tree-if-conv.c: Ditto.
3129         * profile.c: Ditto.
3130         * ipa.c: Ditto.
3131         * tree-data-ref.c: Ditto.
3132         * loop-unroll.c: Ditto.
3133         * treelang/treetree.c: Ditto.
3134         * calls.c: Ditto.
3135         * bt-load.c: Ditto.
3136         * ggc-common.c: Ditto.
3137         * except.c: Ditto.
3138         * coverage.c: Ditto.
3139         * cselib.c: Ditto.
3140         * tree-cfgcleanup.c: Ditto.
3141         * tree-ssa-pre.c: Ditto.
3142         * cfgcleanup.c: Ditto.
3143         * loop-invariant.c: Ditto.
3144         * loop-iv.c: Ditto.
3145         * ipa-prop.c: Ditto.
3146         * print-tree.c: Ditto.
3147         * conflict.c: Ditto.
3148         * ggc-page.c: Ditto.
3149         * sched-deps.c: Ditto.
3150         * regclass.c: Ditto.
3151         * tree-object-size.c: Ditto.
3152         * combine.c: Ditto.
3153         * bb-reorder.c: Ditto.
3154         * resource.c: Ditto.
3155         * var-tracking.c: Ditto.
3156         * cfgloop.c: Ditto.
3157         * df-problems.c: Ditto.
3158         * reg-stack.c: Ditto.
3159         * tlink.c: Ditto.
3160         * gccspec.c: Ditto.
3161         * sched-rgn.c: Ditto.
3162         * tree-ssa-structalias.c: Ditto.
3163         * tree-ssa-reassoc.c: Ditto.
3164         * config/darwin-c.c: Ditto.
3165         * config/darwin.c: Ditto.
3166         * config/arm/arm.c: Ditto.
3167         * cfgrtl.c: Ditto.
3168         * collect2.c: Ditto.
3169         * reload1.c: Ditto.
3170
3171 2006-01-31  Nicolas Pitre  <nico@cam.org>
3172
3173         * arm.md (smaxsi3): Make aware of smax_m1.
3174         (smax_m1): New.
3175
3176 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3177
3178         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3179
3180 2006-01-31  Richard Guenther  <rguenther@suse.de>
3181
3182         * doc/invoke.texi (-msselibm): Document.
3183         * target.h (expand_library_builtin): New target hook.
3184         * builtins.c (expand_builtin): Use expand_library_builtin.
3185         (default_expand_library_builtin): New function.
3186         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3187         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3188         (link_gcc_math_spec): Declare.
3189         (static_specs): Add link_gcc_math_spec.
3190         * expr.h (default_expand_library_builtin): Declare.
3191         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3192         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3193         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3194         * config/i386/i386.opt (msselibm): New target option.
3195         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3196         (ix86_init_sse_abi_builtins): New function.
3197         (ix86_expand_library_builtin): Likewise.
3198         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3199         (override_options): Handle error conditions wrt -msselibm.
3200         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3201         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3202         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3203         builtins.
3204
3205 2006-01-31  Richard Guenther  <rguenther@suse.de>
3206         Paolo Bonzini  <bonzini@gnu.org>
3207
3208         * doc/install.texi (--disable-libgcc-math): Document.
3209
3210 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3211
3212         * expr.h (expand_normal): new inline function.
3213         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3214         * dojump.c: use it.
3215         * dwarf2out.c: use it.
3216         * expr.c: use it.
3217         * calls.c: use it.
3218         * expmed.c: use it.
3219         * except.c: use it.
3220         * config/sparc/sparc.c: use it.
3221         * config/i386/i386.c: use it.
3222         * config/rs6000/rs6000.c: use it.
3223         * config/arm/arm.c: use it.
3224         * config/mips/mips.c: use it.
3225         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3226
3227 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3228
3229         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3230         argv to the appropriate type.
3231
3232 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3233
3234         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3235         unreachable code.
3236
3237 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3238
3239         PR target/26018
3240         * config/s390/s390.c (struct machine_function): New flag
3241         decomposed_literal_pool_addresses_ok_p.
3242         (s390_reorg): Set it before final stage of literal pool transforms.
3243         (s390_decompose_address): Only accept displacements of the form
3244         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3245
3246 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3247
3248         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3249         the comparison routine return.
3250
3251 2006-01-30  Michael Matz  <matz@suse.de>
3252
3253         * global.c (find_reg): Only evict for global regs.
3254         Take n_refs into account and dump more info.
3255
3256 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3257
3258         PR target/14798:
3259         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3260         (pragma_trap, pragma_nosave_low_regs): Likewise.
3261         (current_function_anonymous_args): Likewise.
3262         (sh_deferred_function_attributes): New variable.
3263         (sh_deferred_function_attributes_tail): Likewise.
3264         (print_operand): For '@', look up trap_exit attribute.
3265         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3266         handlers, save/restore fpscr, but don't do any other
3267         interrupt-specific saves.
3268         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3269         Fix check for partially saved registers to check for SHmedia.
3270         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3271         (sh_output_function_epilogue): Don't clear any of the removed
3272         variables.
3273         (sh_insert_attributes): Don't check pragma_interrupt.
3274         Insert deferred attributes.  Check that interrupt attribute is
3275         present for other attributes that require its presence.
3276         (sh_attribute_table): Add new attributes trapa_handler and
3277         nosave_low_regs.
3278         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3279         Don't check for pragma_interrupt.  Don't store argument.
3280         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3281         (sh_deferred_function_attributes): Declare.
3282         (sh_deferred_function_attributes_tail): Likewise.
3283         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3284         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3285         (*return_i): Don't use when trap_exit attribute is in effect.
3286         (*return_trapa): New insn pattern.
3287         * sh-c.c: New file.
3288         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3289         setting c_target_objs and cxx_target_objs.
3290         * t-sh: Add rule for sh-c.o.
3291
3292 2006-01-30  Richard Guenther  <rguenther@suse.de>
3293
3294         PR c++/23372
3295         * gimplify.c (gimplify_target_expr): Handle easy cases
3296         without creating a temporary.
3297
3298 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3299
3300         * vec.h (safe_grow): Remove duplicated line.
3301
3302 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3303
3304         PR 25874
3305         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3306         (expand_omp): ... here.
3307         (expand_omp_parallel): Only remove barriers for combined
3308         parallel+workshare constructs.
3309
3310 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3311
3312         Revert
3313
3314         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3315         * tree.c (build_qualified_type): Chain the new type to the original
3316         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3317         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3318         (build_pointer_type_for_mode): Only return unqualified types.
3319         (build_reference_type_for_mode): Likewise.
3320
3321 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3322
3323         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3324         * Makefile.in (CXX_COMPAT_WARN): Define.
3325         * configure: Regenerate.
3326
3327 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3328
3329         PR tree-opt/25911
3330         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3331         to an if check.
3332
3333 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3334
3335         * toplev.c: Fix thinko.
3336
3337 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3338             Marcin Dalecki  <martin@dalecki.de>
3339
3340         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3341         (push_srcloc): Use XNEW.
3342         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3343
3344 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3345
3346         * df-core.c (df_set_blocks): Deleted all variable.
3347
3348 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3349
3350         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3351         cgraph_output_pending_asms.
3352
3353 2006-01-28  Zack Weinberg  <zackw@panix.com>
3354
3355         * c.opt: Add -W(no-)overlength-strings.
3356         * doc/invoke.texi: Document it.
3357         * c-opts.c (c_common_handle_option): -pedantic implies
3358         -Woverlength-strings, if not explicitly disabled already.
3359         (c_common_post_options): -Woverlength-strings defaults to off, and
3360         is always off for C++.
3361         * c-common.c (fix_string_type): Issue warning about strings longer
3362         than is portable only if warn_overlength_strings.  Rearrange code
3363         a little for clarity.
3364         * configure.in: Check for -Wno-overlength-strings as well before
3365         enabling -pedantic in stage 1.
3366         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3367         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3368
3369         * genconditions.c (write_header, write_one_condition)
3370         (write_conditions, write_writer): Consolidate very long strings
3371         that were broken up to fit in C89 portable limit.  Don't use
3372         printf when fputs will do.
3373
3374 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3375
3376         * combine.c (simplify_comparison <AND>): Check
3377         TRULY_NOOP_TRUNCATION before start using a subreg.
3378
3379         * config/mips/mips.md (*branch_zero<mode>,
3380         *branch_zero<mode>_inverted, *branch_equality<mode>,
3381         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3382         Remove mode check from comparisons.
3383
3384 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3385
3386         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3387
3388 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3389
3390         * expmed.c (const_mult_add_overflow_p): Remove.
3391         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3392
3393         * recog.c (validate_replace_rtx_subexp): Remove.
3394         * recog.h: Remove the prototype for
3395         validate_replace_rtx_subexp.
3396
3397         * integrate.h: Remove the prototype for
3398         copy_decl_for_inlining.
3399         * rtl.h: Remove the prototype for mark_constant_function.
3400         * tree-vectorizer.h: Remove the prototype for
3401         vect_strip_conversion.
3402
3403         * modulo-sched.c (create_partial_schedule,
3404         free_partial_schedule, reset_partial_schedule): Make them
3405         static.
3406
3407         * hooks.c (hook_bool_rtx_int_false): Remove.
3408         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3409
3410 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3411
3412         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3413         and -mlong-double-128 are incompatible.
3414         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3415         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3416         (TARGET_LIBGCC2_CFLAGS): Define.
3417         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3418         (TARGET_LIBGCC2_CFLAGS): Same.
3419         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3420
3421 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3422
3423         PR c/19606.
3424         * c-typeck.c (build_binary_op): Perform implicit casts of
3425         operands before shortening them.
3426
3427         * cfgloopmanip.c (split_loop_bb): Remove.
3428         * cfgloop.h: Remove the prototype for split_loop_bb.
3429
3430         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3431         * cfgloop.h: Remove the prototype for
3432         flow_loop_outside_edge_p.
3433
3434         * emit-rtl.c (init_virtual_regs): Make it static.
3435         * function.h: Remove the prototype for init_virtual_regs.
3436
3437         * recog.c (peephole2_optimize): Make it static.
3438         * recog.h: Remove the prototype for peephole2_optimize.
3439
3440 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3441
3442         * df-scan.c (df_record_entry_block_defs): Check if
3443         INCOMING_RETURN_ADDR_RTX is defined.
3444
3445 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3446             Kenneth Zadeck <zadeck@naturalbridge.com>
3447
3448         PR rtl-optimization/24762
3449         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3450         * targhooks.c (hook_void_bitmap): New hook prototype.
3451         * targhoohs.h (hook_void_bitmap): Ditto.
3452         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3453         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3454         * target.h (live_on_entry): New function pointer.
3455         * df-scan.c (df_all_hard_regs): Removed.
3456         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3457         (df_scan_free_internal): Added df->entry_block_defs.
3458         (df_scan_alloc): Ditto.
3459         (df_scan_dump): Ditto.
3460         (df_uses_record): Plumbed flag field properly thru calls.
3461         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3462         This part fixes PR24762.
3463         (df_bb_refs_record): Added code to make the frame and arg
3464         pointers live in EH blocks.
3465         (df_refs_record): Added call to df_record_entry_block_defs.
3466         (df_record_entry_block_defs): New function.
3467         * df-core.c: Added comments to describe new artifical defs.
3468         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3469         (entry_block_defs): New field in struct df.
3470         (df_all_hard_regs): Deleted.
3471         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3472         * df-problems.c (df_ru_bb_local_compute_process_def):
3473         Added code to handle artifical defs in the entry to a function.
3474         (df_ru_bb_local_compute): Ditto.
3475         (df_rd_bb_local_compute_process_def):  Ditto.
3476         (df_rd_bb_local_compute): Ditto.
3477         (df_lr_bb_local_compute): Ditto.
3478         (df_ur_bb_local_compute): Ditto.
3479         (df_urec_bb_local_compute):  Ditto.
3480         (df_chain_create_bb):  Ditto.
3481         (df_ur_local_finalize): Removed entry.
3482         (df_urec_init): Ditto.
3483         (df_urec_local_finalize): Ditto.
3484         (df_ri_bb_compute): Added detection of last use of pseudos.
3485         * Makefile.in (df-scan.o): Updated dependencies.
3486         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3487         * config/mips/mips.c (mips_set_live_on_entry): Added.
3488         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3489         for target hook.
3490         * dce.c (marked_insn_p): Added code to handle artifical defs.
3491
3492 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3493
3494         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3495         intrinsic.
3496         (_mm_cvtsi128_si64): Likewise.
3497         (_mm_cvtsd_si64): Likewise.
3498         (_mm_cvttsd_si64): Likewise.
3499         (_mm_cvtsi64_sd): Likewise.
3500         (_mm_cvtsi64_si128): Likewise.
3501         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3502         (_mm_cvtsi64_m64): Likewise.
3503         (_m_to_int64): Likewise.
3504         (_mm_cvtm64_si64): Likewise.
3505         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3506         (_mm_cvttss_si64): Likewise.
3507         (_mm_cvtsi64_ss): Likewise.
3508         (_mm_cvtss_f32): Likewise.
3509
3510 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3511
3512         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3513         for pragma redefine_extname.
3514
3515 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3516
3517         PR target/25864
3518         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3519         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3520         -mno-minimal-toc to previous content.
3521         (bispecs): Remove goal.
3522         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3523         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3524         compatibility aliases on powerpc-*-*gnu*.
3525         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3526         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3527         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3528         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3529         (ldblspecs): New goal.
3530         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3531         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3532         _df_to_tf.
3533         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3534         L_sf_to_tf or L_df_to_tf is defined.
3535
3536 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3537             Alan Modra  <amodra@bigpond.net.au>
3538
3539         PR target/25864
3540         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3541         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3542         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3543         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3544         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3545         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3546         (rs6000_override_options): Initialize rs6000_ieeequad.
3547         Initialize TFmode format to ibm_extended_format if not
3548         TARGET_IEEEQUAD.
3549         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3550         ieeelongdouble.
3551         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3552         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3553         (function_arg_advance): IBM long double passed in two FPRs, not
3554         split.
3555         (function_arg): IBM long double passed in FPRs.
3556         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3557         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3558         Only multireg GPR aligned.
3559         (rs6000_init_libfuncs): Enable IBM long double functions if not
3560         IEEEQUAD.
3561         (rs6000_generate_compare): Use IBM long double compare if not
3562         TARGET_IEEEQUAD.
3563         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3564         (TARGET_IEEEQUAD): Define.
3565         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3566         not TARGET_IEEEQUAD.
3567         * config/rs6000/rs6000.md: Enable TFmode patterns if
3568         !TARGET_IEEEQUAD.
3569         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3570         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3571         and -mlong-double-128 are incompatible.
3572         * doc/invoke.texi (-mabi): Collect options together.  Add
3573         ibmlongdouble and ieeelongdouble.
3574
3575 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3576
3577         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3578         opaque type.
3579         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3580         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3581         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3582         * rtl.h (rtunion_def): Remove rt_ptr.
3583         (X0PTR): Delete.
3584         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3585         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3586         * config/i386/winnt.c (i386_pe_mark_dllexport)
3587         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3588
3589 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3590
3591         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3592
3593 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3594
3595         PR other/24829
3596         PR target/24831
3597         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3598         pthread_key_delete.  From John David Anglin.  gthrw-ify
3599         pthread_getunique_np only if it it's not a macro.  Delete
3600         UNUSED macro.
3601         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3602         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3603         __gthread_objc_condition_signal, __gthread_key_delete): Add
3604         "__attribute__ ((__unused__))" to unused arguments.
3605         (__gthread_recursive_mutex_init_function): Add missing return.
3606         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3607         gthr-posix95.h: Use macro-based approach for name redirection
3608         on targets missing weakref.
3609
3610 2006-01-26  Zack Weinberg  <zackw@panix.com>
3611
3612         * genconditions.c (write_header): In generated code, #ifdef out
3613         all includes and fake declarations, except includes of bconfig.h
3614         and system.h, unless GCC_VERSION >= 3001.  Do not include
3615         gensupport.h in any case.
3616         (write_conditions): Generate a definition of struct c_test.  Add
3617         a comment to the generated #endif.
3618         (write_one_condition): Escape backslashes in string too.
3619         (write_writer): Generated code must escape backslashes and quote
3620         marks (but not newlines) in the strings it writes.
3621         * Makefile.in (build/gencondmd.o): Update dependencies.
3622
3623 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3624
3625         PR target/25961
3626         * Makefile.in (insn-automata.o): Add header file dependencies.
3627         * genautomata.c: Add includes.
3628
3629 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3630
3631         PR target/25961
3632         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3633
3634 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3635
3636         * configure.ac: Expect target tools paths to be passed from the toplevel
3637         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3638         AS_SET_VAR_IF.
3639         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3640
3641 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3642
3643         PR c/25892
3644         * c.opt (Wpointer-sign): Init to -1.
3645         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3646         OPT_pedantic, to 0 otherwise.
3647         * doc/invoke.texi: Update.
3648
3649 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3650
3651         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3652         constants provided by 80387 instructions in the destination mode.
3653
3654 2006-01-26  Richard Guenther  <rguenther@suse.de>
3655             Andrew Pinski  <pinskia@physics.uc.edu>
3656
3657         PR tree-opt/21470
3658         partial PR tree-opt/17064
3659         * tree-ssa-structalias.c (intra_create_variable_infos):
3660         Create heap variables for incoming parameters if
3661         flag_argument_noalias > 1.
3662         (find_what_p_points_to): Look through default defs of
3663         parameter decls.
3664
3665 2006-01-26  Jeff Law  <law@redhat.com>
3666
3667         PR ada/25900
3668         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3669         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3670         within the VR_RANGE, use the VR_RANGE as the result, not the
3671         VR_ANTI_RANGE.
3672         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3673         bounds for the type.
3674
3675 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3676
3677         * tree-ssa-alias.c (maybe_create_global_var): Change
3678         subvar walking to an assertion that we don't have subvar'd variables.
3679
3680 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3681
3682         PR C/25861
3683         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3684         Use a new variable, inner.  PARM_DECLs are always non-weak.
3685
3686 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3687
3688         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3689         --disable-checking.
3690
3691 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3692
3693         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3694
3695 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3696
3697         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3698         (smax_insn, smin_insn, smax_0, smin_0): New.
3699
3700 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3701
3702         PR target/25947
3703         * config/cris/cris.c (cris_order_for_addsi3): New function.
3704         * config/cris/cris-protos.h: Prototype it.
3705         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3706         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3707         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3708         (split for "op.S1 [rx=rx+i],ry (swapped)")
3709         (split for "op(s|u).S1 [rx=rx+i],ry")
3710         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3711         Apply cris_order_for_addsi3 when generating addsi3 insns.
3712
3713 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3714
3715         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3716         (TREE_BLOCK): Add call to EXPR_CHECK.
3717
3718 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3719
3720         PR 25886
3721         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
3722         * tree-pretty-print.c (dump_omp_clause): Extract from ...
3723         (dump_omp_clauses): ... here.
3724         (dump_generic_node): Handle OMP_CLAUSE.
3725         * tree.c (omp_clause_num_ops): New.
3726         (omp_clause_code_name): New.
3727         (tree_code_size): Handle OMP_CLAUSE.
3728         (tree_size): Likewise.
3729         (make_node): Document handling of OMP_CLAUSE.
3730         (tree_node_structure): Handle OMP_CLAUSE.
3731         (omp_clause_check_failed): New.
3732         (omp_clause_range_check_failed): New.
3733         (omp_clause_operand_check_failed): New.
3734         (build_omp_clause): New.
3735         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
3736         * tree.h (enum omp_clause_code): Declare.
3737         (OMP_CLAUSE_SUBCODE_CHECK): Define.
3738         (OMP_CLAUSE_RANGE_CHECK): Define.
3739         (OMP_CLAUSE_ELT_CHECK): Define.
3740         (omp_clause_check_failed): Declare.
3741         (omp_clause_operand_check_failed): Declare.
3742         (omp_clause_range_check_failed): Declare.
3743         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
3744         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
3745         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
3746         (OMP_CLAUSE_LASTPRIVATE): Likewise.
3747         (OMP_CLAUSE_IF_EXPR): Likewise.
3748         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
3749         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
3750         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
3751         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
3752         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
3753         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
3754         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
3755         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
3756         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
3757         (OMP_CLAUSE_CODE): Define.
3758         (OMP_CLAUSE_SET_CODE): Define.
3759         (OMP_CLAUSE_CODE): Define.
3760         (OMP_CLAUSE_OPERAND): Define.
3761         (struct tree_omp_clause): Declare.
3762         (union tree_node): Add field 'omp_clause'.
3763         * treestruct.def (TS_OMP_CLAUSE): Define.
3764         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
3765         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
3766         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
3767         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
3768         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
3769         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
3770         (OMP_CLAUSE): Define.
3771         * print-tree.c (print_node): Handle OMP_CLAUSE.
3772         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
3773         * c-typeck.c: Likewise.
3774         * gimplify.c: Likewise.
3775         * c-omp.c: Likewise.
3776         * tree-nested.c: Likewise.
3777         * tree-inline.c: Likewise.
3778         * c-parser.c: Likewise.
3779         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
3780         clauses.
3781
3782 2006-01-25  Roger Sayle  <roger@eyesopen.com>
3783
3784         PR rtl-optimization/25703
3785         * combine.c (try_combine): Handle zero_extract and strict_low_part
3786         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
3787
3788 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
3789
3790         * global.c: Fix comment typos.
3791
3792 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
3793
3794         PR target/25758
3795         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
3796         Use output_addr_const instead of assemble_name.
3797
3798 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
3799
3800         * Makefile.in (sched-vis.o): Update dependencies.
3801         * haifa-sched.c (sched_finish): Clear current_sched_info.
3802         * cfg.c (dump_bb_info): New, split from dump_flow_info.
3803         (dump_flow_info): Call it.
3804         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
3805         a slim RTL dump.
3806         * basic-block.h (dump_bb_info): Declare.
3807         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
3808         option, and apply options only for dump files whose TDF_RTL,
3809         TDF_TREE, or TDF_IPA bits match.
3810         * rtl.h: Declare new functions exported from sched-vis.c.
3811         * sched-vis.c: Enable also if scheduling is not used.
3812         (print_value): Print the mode of registers if not inside scheduling.
3813         (print_insn): Make it work outside the scheduler.  Beautify the output
3814         a bit.
3815         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
3816
3817 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3818
3819         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
3820         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
3821         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
3822         depending on the value of CONSTANT_POOL_ADDRESS_P.
3823         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
3824         SYMBOL_REF_DECL.
3825         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
3826         rather than SYMBOL_REF_DECL.
3827         (rtx_constant_pool): Remove const_rtx_sym_htab.
3828         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
3829         (init_varasm_status): Don't initialize const_rtx_sym_htab.
3830         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
3831         Remove handling of const_rtx_sym_htab.
3832         (find_pool_constant): Delete.
3833         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
3834         rather than find_pool_constant.
3835         (get_pool_constant_for_function): Delete.
3836         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
3837         find_pool_constant.
3838         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
3839         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
3840         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
3841         (SYMBOL_REF_CONSTANT): New macro.
3842         (get_pool_constant_for_function): Delete.
3843         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
3844         rather than SYMBOL_REF_DECL.
3845         (i386_pe_mark_dllimport): Likewise.
3846         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
3847         rather than SYMBOL_REF_DECL.
3848         * config/darwin.c (machopic_indirect_data_reference): Likewise.
3849         (machopic_indirect_call_target): Likewise.
3850
3851 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
3852
3853         * flow.c (delete_noop_moves): Add missing EOL to dump message.
3854
3855 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3856
3857         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
3858
3859 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3860
3861         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
3862
3863 2006-01-24  David Daney  <ddaney@avtrex.com>
3864
3865         PR java/25816
3866         * configure.ac (enable_tls): New enable option.
3867         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
3868         * configure: Regenerate.
3869         * doc/install.texi (--enable-tls): Document new option.
3870         (--disable-tls): Ditto.
3871
3872 2006-01-24  Richard Henderson  <rth@redehat.com>
3873
3874         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
3875         * alias.c (true_dependence): Respect it.
3876         (canon_true_dependence, write_dependence_p): Likewise.
3877         * builtins.c (get_builtin_sync_mem): Set it.
3878
3879 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
3880
3881         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
3882         efficient way.
3883
3884 2006-01-24  DJ Delorie  <dj@redhat.com>
3885
3886         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
3887         for storing constants in single-bit bitfields.
3888
3889 2006-01-25  Ben Elliston  <bje@au.ibm.com>
3890
3891         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
3892
3893 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
3894
3895         PR tree-opt/25860
3896         * tree-ssa-pre.c (phi_translate): Return NULL
3897         for AGGREGATE_TYPE's.
3898
3899 2006-01-24  Zack Weinberg  <zackw@panix.com>
3900
3901         * genautomata.c (process_state_for_insn_equiv_partition):
3902         Use xcalloc for insn_arcs_array.
3903         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
3904         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
3905
3906 2006-01-24  Richard Henderson  <rth@redhat.com>
3907
3908         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
3909         update all callers.
3910
3911 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
3912
3913         PR rtl-optimization/25890
3914         PR rtl-optimization/25905
3915         * combine.c (expand_compound_operation, expand_field_assignment):
3916         Fail if the bitfield's final position is out of bounds.
3917
3918 2006-01-24  Ian Lance Taylor  <ian@airs.com>
3919
3920         PR middle-end/25930
3921         * cgraphunit.c (cgraph_output_in_order): Don't clear
3922         cgraph_asm_nodes until after asm strings have been output.
3923
3924 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
3925
3926         * fix-header.c (read_scan_file): Add new parameter imultilib when
3927         calling register_include_chains.
3928
3929 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
3930
3931         * omp-low.c: Update documentation.
3932
3933 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3934             Daniel Berlin  <dberlin@dberlin.org>
3935
3936         PR tree-opt/25315
3937         PR tree-opt/25857
3938         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
3939         return from the function.
3940
3941 2006-01-22  Zack Weinberg  <zackw@panix.com>
3942
3943         * rtl.def (match_code): Add second argument.
3944         * genpreds.c (write_extract_subexp): New function.
3945         (write_match_code): Add path argument.  Use write_extract_subexp.
3946         (write_predicate_expr): Pass path to write_match_code.
3947         (mark_mode_tests): MATCH_CODE applied to a subexpression does
3948         not perform a mode test.
3949         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
3950         a subexpression does not constrain the top-level code set.
3951         * read-rtl.c (read_rtx_variadic): New function.
3952         (read_rtx_1): Use it; allow AND and IOR to be variadic.
3953         * doc/md.texi: Document new notation.
3954         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
3955         (cmpsi_operand): ... here, using new notation.
3956
3957 2006-01-22  Zack Weinberg  <zackw@panix.com>
3958
3959         * varray.c: Remove GENERATOR_FILE #ifdefs.
3960
3961 2006-01-22  Zack Weinberg  <zackw@panix.com>
3962
3963         * genautomata.c (output_reserved_units_table): Emit nothing if
3964         description->query_units_num is zero.  Remove extra blank line.
3965         (output_cpu_unit_reservation_p): Short circuit
3966         if description->query_units_num is zero.
3967
3968 2006-01-22  Zack Weinberg  <zackw@panix.com>
3969
3970         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
3971         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
3972         nor any of the random handful of variables that used to be necessary
3973         when this program was linked with rtlanal.o.  Prune set of forward
3974         function declarations.
3975         (struct attr_desc): Remove static_p field.
3976         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
3977         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
3978         (attr_string): Do not read the character one past the length of
3979         the string.
3980         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
3981         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
3982         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
3983         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
3984         (make_automaton_attrs): New.
3985         (main): Do not call into genautomata.  Call local gen_bypass
3986         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
3987         Remove special case for insn_alts.
3988         * genautomata.c: Include gensupport.h; not genattrtab.h nor
3989         varray.h (leftover from previous change).  Prune set of forward
3990         function declarations.  Remove state_alts fields from all
3991         structures.  Remove state_alts_table from struct automaton.