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