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* expmed.c (expand_mult_add): Remove.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2
3         * expmed.c (expand_mult_add): Remove.
4         * expr.h: Remove the prototype for expand_mult_add.
5
6 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
7
8         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
9         and REG_SAVED_VAL_EXP constants.
10         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
11         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
12         Handle regs stored by value.
13         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
14         (execute_cfa_program): Handle DW_CFA_val_offset,
15         DW_CFA_val_offset_sf and DW_CFA_val_expression.
16         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
17         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
18         (uw_install_context_1): Handle target regs stored by value.
19
20 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
21
22         * tree-sra.c (tree_sra): Return todoflags;
23         (generate_one_element): Set TODO_update_smt_usage if needed.
24         (pass_sra): Remove TODO_update_smt_usage.
25         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
26         parameter.
27         (tree_ssa_forward_propagate_single_use_vars): Return
28         TODO_update_smt_usage if we need to update SMT usage.
29         (pass_forwprop): Remove TODO_update_smt_usage.
30         
31 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
32
33         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
34         (correct_use_link): Remove reference to get_stmt_operands.
35         (update_stmt_operands): Likewise.
36         (get_modify_expr_operands): New function factored out of
37         parse_ssa_operands and get_expr_operands.
38         Try to create V_MUST_DEFs for LHS by default.
39         (get_expr_operands) <case MODIFY_EXPR>: Call
40         get_modify_expr_operands.
41         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
42         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
43         (parse_ssa_operands) <case MODIFY_EXPR>: Call
44         get_modify_expr_operands.
45
46 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
47
48         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
49         * tree-flow.h: Remove the prototype for
50         referenced_var_lookup_if_exists.
51
52 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
53
54         PR rtl-optimization/26345
55         PR target/19061
56         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
57
58 2006-03-03  Roger Sayle  <roger@eyesopen.com>
59
60         PR tree-optimization/26524
61         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
62         fold_convert to create a constant of the appropriate type.
63
64 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
65
66         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
67         SYMBOL_REF_IN_BLOCK_P.
68         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
69         of SYMBOL_FLAG_IN_BLOCK.
70         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
71         instead of SYMBOL_REF_IN_BLOCK_P.
72         * explow.c (use_anchored_address): Likewise.
73         * rtl.c (rtx_size): Likewise.
74         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
75         instead of SYMBOL_FLAG_IN_BLOCK.
76         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
77         SYMBOL_REF_IN_BLOCK_P.
78         (assemble_variable): Likewise.
79         (output_constant_def_contents): Likewise.
80         (output_constant_pool): Likewise.
81         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
82         instead of SYMBOL_FLAG_IN_BLOCK.
83         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
84         SYMBOL_REF_IN_BLOCK_P.
85         (SYMBOL_REF_BLOCK): Likewise.
86         (SYMBOL_REF_OFFSET): Likewise.
87         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
88         SYMBOL_REF_IN_BLOCK_P.
89         (SYMBOL_FLAG_IN_BLOCK): Replace with...
90         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
91         (SYMBOL_REF_IN_BLOCK_P): Replace with...
92         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
93
94 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
95
96         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
97
98 2006-03-02  Roger Sayle  <roger@eyesopen.com>
99
100         * simplify-rtx.c (simplify_unary_operation): When simplifying
101         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
102         that we perform the right shift in the appropriate mode, and
103         then extend or truncate the result to requested mode.
104
105 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
106
107         * gengtype.c (main): Handle double_int type.
108         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
109         * double-int.c: New file.
110         * double-int.h: New file.
111         * system.h: Include doubleint.h.
112         * Makefile.in (SYSTEM_H): Include double-int.h.
113         (double-int.o): Add.
114
115 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
116
117         PR bootstrap/26478
118         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
119         copying over it.
120
121 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
122
123         * tree-vrp.c (remove_range_assertions): Do not update statements
124         unnecessarily.
125
126 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
127
128         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
129         cleanup.
130         * gcse.c (rest_of_handle_gcse): Ditto.
131         * except.c (gate_handle_eh): Ditto.
132         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
133         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
134
135 2006-03-02  Eric Christopher  <echristo@apple.com>
136
137         * config/i386/i386.c (machopic_output_stub): Add indirection to
138         jump.
139
140 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
141
142         * loop.c: Removed.
143
144 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
145
146         Sun Niagara specific optimizations.
147         * config.gcc: Recognize niagara as target.
148         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
149         (TARGET_CPU_niagara): Define.
150         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
151         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
152         (CPP_CPU_SPEC): Handle -mcpu=niagara.
153         (ASM_CPU_SPEC): Likewise.
154         (PROCESSOR_NIAGARA): New enum entry.
155         (REGISTER_MOVE_COST): Handle Niagara.
156         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
157         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
158         (sparc_override_options): Recognize "niagara", set appropriate
159         default MASK_* values for it, and align functions to 32-bytes
160         by default just like ULTRASPARC/ULTRASPARC3.
161         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
162         (sparc64_initialize_trampoline): Likewise.
163         (sparc_use_sched_lookahead): Use zero for niagara.
164         (sparc_issue_rate): Use one for niagara.
165         * config/sparc/niagara.md: New file.
166         * config/sparc/sparc.md: Include it.
167         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
168         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
169         when default cpu is niagara.
170         (CPP_CPU_SPEC): Handle -mcpu=niagara.
171         (ASM_CPU_SPEC): Likewise.
172         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
173         when default cpu is niagara.
174         (ASM_CPU_SPEC): Handle -mcpu=niagara.
175         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
176         just like v9/ultrasparc/ultrasparc3.
177         * doc/invoke.texi: Add documentation for "niagara" and improve
178         existing documentation for ultrasparc variants.
179
180 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
181
182         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
183
184 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
185
186         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
187         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
188         and say that only one is needed.
189         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
190         * target.h (have_switchable_bss_sections): New hook.
191         * explow.c (use_anchored_address): Check that the symbol is in a block.
192         * varasm.c (tls_comm_section, comm_section, lcomm_section)
193         (bss_noswitch_section): New variables.
194         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
195         (get_noswitch_section): New function.
196         (get_block_for_section): Allow SECT to be null.
197         (unlikely_text_section_p): Use SECTION_STYLE.
198         (bss_initializer_p): New function.
199         (get_variable_section): Move earlier in file.  Take a new argument,
200         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
201         Return one of the new *_sections in such cases.
202         (get_block_for_decl): New function, extracting some logic from
203         use_blocks_for_decl_p.
204         (change_symbol_section): Remove in favor of...
205         (change_symbol_block): ...this new function.
206         (use_blocks_for_decl_p): Remove checks now performed by
207         get_block_for_decl.
208         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
209         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
210         (emit_local, emit_bss, emit_common): ...these new functions.
211         Return true if the alignment was honored.
212         (emit_tls_common): New function.
213         (asm_emit_uninitialised): Delete.
214         (assemble_variable_noswitch): New function, split out from...
215         (assemble_variable): ...here.  Don't make decisions about common
216         variables here.  Globalize all public decls that go into non-common
217         sections.  Check whether SYMBOL_REF_BLOCK is null.
218         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
219         (output_constant_pool): Likewise.
220         (init_varasm_once): Initialize the new section variables.
221         (have_global_bss_p): New function.
222         (categorize_decl_for_section): Use bss_initializer_p.
223         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
224         (place_block_symbol): Assert that the symbol must be in a block.
225         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
226         (TARGET_INITIALIZER): Include it.
227         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
228         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
229         (SECTION_MACH_DEP): Bump by two.
230         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
231         (unnamed_section): Mention SECTION_UNNAMED in comment.
232         (named_section): Likewise SECTION_NAMED.
233         (noswitch_section_callback): New type.
234         (noswitch_section): New structure.
235         (section): Add a noswitch_section alternative.
236         (SECTION_STYLE): New macro.
237         (tls_comm_section, comm_section, lcomm_section): Declare.
238         (bss_noswitch_section, have_global_bss_p): Declare.
239         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
240         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
241         Override.
242         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
243         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
244         Override.
245
246 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
247
248         * gcc/tree-vrp.c (execute_vrp): Return value.
249         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
250         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
251         * gcc/tree-complex.c (tree_lower_complex): Ditto.
252         (tree_lower_complex_O0): Ditto.
253         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
254         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
255         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
256         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
257         (execute_tail_calls): Ditto.
258         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
259         * gcc/tree.h (init_function_for_compilation): Ditto.
260         * gcc/ipa-cp.c (ipcp_driver): Ditto.
261         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
262         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
263         * gcc/final.c (compute_alignments): Ditto.
264         (rest_of_handle_final): Ditto.
265         (rest_of_handle_shorten_branches): Ditto.
266         (rest_of_clean_state): Ditto.
267         * gcc/omp-low.c (execute_expand_omp): Ditto.
268         (execute_lower_omp): Ditto.
269         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
270         * gcc/ipa-reference.c (static_execute): Ditto.
271         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
272         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
273         (rest_of_handle_machine_reorg): Ditto.
274         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
275         * gcc/flow.c (recompute_reg_usage): Ditto.
276         (rest_of_handle_remove_death_notes): Ditto.
277         (rest_of_handle_life): Ditto.
278         (rest_of_handle_flow2): Ditto.
279         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
280         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
281         (do_ssa_store_ccp): Ditto.
282         (execute_fold_all_builtins): Ditto.
283         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
284         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
285         * gcc/ipa-pure-const.c (static_execute): Ditto.
286         * gcc/cse.c (rest_of_handle_cse): Ditto.
287         (rest_of_handle_cse2): Ditto.
288         * gcc/web.c (rest_of_handle_web): Ditto.
289         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
290         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
291         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
292         * gcc/tree-nrv.c (tree_nrv): Ditto.
293         (execute_return_slot_opt): Ditto.
294         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
295         (create_structure_vars): Ditto.
296         * gcc/loop-init.c (rtl_loop_init): Ditto.
297         (rtl_loop_done): Ditto.
298         (rtl_move_loop_invariants): Ditto.
299         (rtl_unswitch): Ditto.
300         (rtl_unroll_and_peel_loops): Ditto.
301         (rtl_doloop): Ditto.
302         * gcc/gimple-low.c (lower_function_body): Ditto.
303         (mark_used_blocks): Ditto.
304         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
305         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
306         (cgraph_early_inlining): Ditto.
307         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
308         * gcc/jump.c (cleanup_barriers): Ditto.
309         (purge_line_number_notes): Ditto.
310         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
311         (rest_of_handle_if_after_reload): Ditto.
312         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
313         (tree_ssa_loop_im): Ditto.
314         (tree_ssa_loop_unswitch): Ditto.
315         (tree_vectorize): Ditto.
316         (tree_linear_transform): Ditto.
317         (tree_ssa_loop_ivcanon): Ditto.
318         (tree_ssa_empty_loop): Ditto.
319         (tree_ssa_loop_bounds): Ditto.
320         (tree_complete_unroll): Ditto.
321         (tree_ssa_loop_prefetch): Ditto.
322         (tree_ssa_loop_ivopts): Ditto.
323         (tree_ssa_loop_done): Ditto.
324         * gcc/predict.c (tree_estimate_probability): Ditto.
325         * gcc/recog.c (split_all_insns_noflow): Ditto.
326         (rest_of_handle_peephole2): Ditto.
327         (rest_of_handle_split_all_insns): Ditto.
328         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
329         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
330         (rest_of_handle_stack_adjustments): Ditto.
331         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
332         * gcc/function.c (instantiate_virtual_regs): Ditto.
333         (init_function_for_compilation): Ditto.
334         (rest_of_handle_check_leaf_regs): Ditto.
335         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
336         (rest_of_handle_gcse): Ditto.
337         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
338         * gcc/alias.c (rest_of_handle_cfg): Ditto.
339         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
340         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
341         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
342         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
343         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
344         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
345         * gcc/except.c (set_nothrow_function_flags): Ditto.
346         (convert_to_eh_region_ranges): Ditto.
347         (rest_of_handle_eh): Ditto.
348         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
349         (remove_unnecessary_notes): Ditto.
350         * gcc/except.h (set_nothrow_function_flags): Ditto.
351         (convert_to_eh_region_ranges): Ditto.
352         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
353         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
354         * gcc/tree-ssa-pre.c (do_pre): Ditto.
355         (execute_fre): Ditto.
356         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
357         (rest_of_handle_jump2): Ditto.
358         * gcc/tree-sra.c (tree_sra): Ditto.
359         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
360         (execute_mudflap_function_decls): Ditto.
361         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
362         (do_store_copy_prop): Ditto.
363         * gcc/ipa-prop.h (ipcp_driver): Ditto.
364         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
365         * gcc/tree-ssa-forwprop.c
366         (tree_ssa_forward_propagate_single_use_vars): Ditto.
367         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
368         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
369         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
370         (execute_late_warn_uninitialized): Ditto.
371         * gcc/rtl.h (cleanup_barriers): Ditto.
372         (split_all_insns_noflow): Ditto.
373         (purge_line_number_notes): Ditto.
374         (unshare_all_rtl): Ditto.
375         (remove_unnecessary_notes): Ditto.
376         (recompute_reg_usage): Ditto.
377         (variable_tracking_main): Ditto.
378         * gcc/integrate.c (emit_initial_value_sets): Ditto.
379         * gcc/integrate.h (emit_initial_value_sets): Ditto.
380         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
381         (execute_free_cfg_annotations): Ditto.
382         (execute_fixup_cfg): Ditto.
383         (execute_cleanup_cfg_pre_ipa): Ditto.
384         (execute_cleanup_cfg_post_optimizing): Ditto.
385         (execute_init_datastructures): Ditto.
386         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
387         * gcc/combine.c (rest_of_handle_combine): Ditto.
388         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
389         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
390         (rest_of_handle_reorder_blocks): Ditto.
391         (rest_of_handle_partition_blocks): Ditto.
392         * gcc/var-tracking.c (variable_tracking_main): Ditto.
393         * gcc/tree-profile.c (tree_profiling): Ditto.
394         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
395         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
396         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
397         (rest_of_handle_sched2): Ditto.
398         * gcc/basic-block.h (free_bb_insn): Ditto.
399         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
400         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
401         (remove_useless_stmts): Ditto.
402         (split_critical_edges): Ditto.
403         (execute_warn_function_return): Ditto.
404         (execute_warn_function_noreturn): Ditto.
405         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
406         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
407         * gcc/passes.c (execute_one_pass): Run additional
408         todos returned by execute function.
409         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
410         return a value.
411
412 2006-03-02  Richard Guenther  <rguenther@suse.de>
413
414         * tree-ssa-alias.c (find_used_portions): Consider taking
415         the address as making the variable not write-only.
416
417 2006-03-02  Nick Clifton  <nickc@redhat.com>
418
419         * config.gcc (default_use_cxa_atexit): Extend the description of
420         this configure variable.  Set its default value to "yes" for
421         Linux, NetBSD and ELF targets on the assumption that they will
422         use C libraries with the __cxa_atexit function.
423
424 2006-03-02  Ben Elliston  <bje@au.ibm.com>
425
426         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
427         parameter as unused to suppress a build warning.
428
429 2006-03-02  Ben Elliston  <bje@au.ibm.com>
430
431         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
432         config/dfp-bit.c.
433
434 2006-03-01  Roger Sayle  <roger@eyesopen.com>
435
436         PR other/26489
437         * gthr-posix.h (__gthrw2): Define to take three parameters, the
438         declared name, the weak reference name, and the typeof name.
439         (__gthrw): Avoid expanding the declared name suffix.
440         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
441
442 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
443
444         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
445         from DWARF 3.
446         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
447         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
448         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
449         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
450         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
451         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
452         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
453         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
454         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
455         DW_DS_leading_separate, DW_DS_trailing_separate): New.
456         (DW_END_default, DW_END_big, DW_END_little): New.
457         (DW_END_lo_user, DW_END_hi_user): Define.
458         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
459         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
460         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
461         DW_LANG_D): New.
462
463 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
464
465         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
466         Update all users.
467         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
468         Update all users.
469         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
470         Update all users.
471         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
472         Update all users.
473         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
474         to 'symbol_mem_tag'.
475         Update all users.
476         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
477         rename.
478
479 2006-03-01  Roger Sayle  <roger@eyesopen.com>
480
481         * builtins.c (fold_builtin_copysign): Delete unreachable code.
482
483 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
484
485         PR target/25761
486         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
487         MACHO_DYNAMIC_NO_PIC_P.
488         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
489
490 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
491
492         PR target/26389
493         * config/darwin-protos.h (darwin_asm_output_anchor):
494         Declare.
495         * config/darwin-sections.def (cstring_section):
496         Add SECTION_MERGE to the flags.
497         (literal4_section): Likewise.
498         (literal8_section): Likewise.
499         (objc_selector_refs_section): Likewise.
500         (objc_cls_refs_section): Likewise.
501         * config/darwin.c (darwin_asm_output_anchor): New
502         function.
503         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
504
505 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
506
507         Fix PR tree-optimization/26443
508         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
509         to todo and PROP_tmt_usage to properties_destroyed.
510         * tree-ssa-ccp.c (pass_ccp): Ditto.
511         (pass_store_ccp): Ditto.
512         * tree-ssa-dom.c (pass_dominator): Ditto.
513
514 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
515
516         * tree-ssa-operands.c: Cleanup whitespace.
517         (get_asm_expr_operands): Move before first invocation.
518         (get_indirect_ref_operands): Likewise.
519         (get_tmr_operands): Likewise.
520         (get_call_expr_operands): Likewise.
521         (append_def): Likewise.
522         (append_use): Likewise.
523         (append_v_may_def): Likewise.
524         (append_v_must_def): Likewise.
525         (add_call_clobber_ops): Likewise.
526         (add_call_read_ops): Likewise.
527         (add_stmt_operand): Likewise.
528         (add_virtual_operand): Likewise.
529         (build_ssa_operands): Likewise.
530
531 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
532
533         PR middle-end/26022
534         Revert:
535         PR middle-end/24437
536         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
537         with a call expr to ...
538         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
539
540 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
541
542         * tree-vrp.c (extract_range_from_assert): Remove special
543         handling for types with super-types.
544
545 2006-03-01  Ben Elliston  <bje@au.ibm.com>
546
547         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
548         and powerpc64-*-linux* configurations.
549         * config/t-dfprules: New file.
550
551         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
552         Compile dfp-bit.c from the source directory using -DWIDTH and
553         $DFP_CFLAGS to control the compilation of that file, rather than
554         generating width-specific versions in the build directory.
555         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
556         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
557
558 2006-02-28  Zack Weinberg  <zackw@panix.com>
559
560         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
561         continues to work.
562
563 2006-02-28  Eric Christopher  <echristo@apple.com>
564
565         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
566         Set up IN_LIBGCC definition of TARGET_64BIT.
567         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
568
569 2006-02-28  Roger Sayle  <roger@eyesopen.com>
570
571         PR middle-end/14752
572         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
573         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
574         cases via the construction of "expr != 0".
575
576 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
577
578         * alias.c (alias_invariant, alias_invariant_size): Remove.
579         (record_base_value): Remove.
580         (memrefs_conflict_p): Don't look at alias_invariant.
581         (end_alias_analysis): Don't free it.
582         * alias.h (record_base_value): Remove prototype.
583
584 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
585             Adam Nemet  <anemet@caviumnetworks.com>
586
587         * rtl.h (truncated_to_mode): Declare it.
588         (struct rtl_hooks): Add reg_truncated_to_mode hook.
589         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
590         (RTL_HOOKS_INITIALIZER): Include it.
591         * rtlhooks.c (reg_truncated_to_mode_general): New function.
592         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
593         reg_truncated_to_mode.
594         * rtlanal.c (truncated_to_mode): Define it.
595         * simplify-rtx.c (simplify_unary_operation_1): Use it.
596
597 2006-02-28  Jeff Law  <law@redhat.com>
598
599         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
600         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
601         the range allowed by TYPE_PRECISION.
602
603         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
604
605 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
606
607         PR tree-optimization/26419
608         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
609         values of n.
610
611 2006-02-27  Zack Weinberg  <zackw@panix.com>
612
613         * doc/md.texi: Fix typo in previous change.
614
615 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
616
617         * df.c: Remove.
618
619 2006-02-27  Zack Weinberg  <zackw@panix.com>
620
621         * rtl.def (define_constraint, define_register_constraint)
622         (define_memory_constraint, define_address_constraint): New MD forms.
623         * gensupport.c (process_rtx): Put define_constraint etc on the
624         predicate queue.
625         * genpreds.c (process_define_predicate): Adjust comment.  Validate
626         the name, and call validate_exp to validate the expression.
627         (mark_mode_tests, write_extract_subexp): Can assume correct input.
628         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
629         all callers changed.
630         (validate_exp, needs_variable, struct constraint_data)
631         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
632         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
633         (const_dbl_constraints, constraint_max_namelen)
634         (have_register_constraints, have_memory_constraints)
635         (have_address_constraints, have_address_constraints)
636         (have_extra_constraints, have_const_int_constraints)
637         (have_const_dbl_constraints, mangle, add_constraint)
638         (process_define_constraint, process_define_register_constraint)
639         (write_enum_constraint_num, write_lookup_constraint)
640         (write_insn_constraint_len, write_regclass_for_constraint)
641         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
642         (write_insn_extra_memory_constraint)
643         (write_insn_extra_address_constraint)
644         (write_satisfies_constraint_fns): New.
645         (write_tm_preds_h): If we have new-style constraint definitions,
646         prototype the functions generated from them, and define the
647         old constraint interface (still used by generic code) in terms of
648         those functions.
649         (write_insn_preds_c): If we have new-style constraint definitions,
650         generate all relevant functions from those definitions.
651         (main): Handle define_constraint etc.
652         * genoutput.c (struct constraint_data, indep_constraints)
653         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
654         (mdep_constraint_len): New data structures and functions, defined
655         #ifdef USE_MD_CONSTRAINTS.
656         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
657         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
658         use new logic to validate operand constraints against constraint
659         definitions.
660         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
661         defined.
662         * defaults.h: If none of the old-style constraint macros are
663         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
664         old-style macros; and poison REG_CLASS_FROM_LETTER,
665         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
666         EXTRA_CONSTRAINT.
667         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
668         * doc/md.texi: Document new constraint-definition mechanism and the
669         C interface it provides.  Remove references to old mechanism
670         elsewhere in the document.
671         (Machine Constraints): Use pathnames relative to gcc directory,
672         i.e. config/ARCH/FILE.  Change i386 section to refer to
673         config/i386/predicates.md; update that section to match docstrings.
674         * doc/tm.texi: Move all documentation of the old constraint-
675         definition macros to their own section, clearly mark as obsolete.
676
677         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
678         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
679         definitions.
680         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
681         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
682         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
683         constraint strings.
684         (splits and peepholes): Use satisfies_constraint_*.
685         * config/i386/i386.c (memory_address_length)
686         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
687
688 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
689
690         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
691         scalar operation to be put back into the loop.
692
693 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
694
695         PR other/26208
696         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
697         (extract_cie_info): Handle S flag in augmentation string.
698         (execute_cfa_program): If context->signal_frame, execute also
699         fs->pc == context->ra instructions.
700         (uw_frame_state_for): If context->signal_frame, don't subtract one
701         from context->ra to find FDE.
702         (uw_update_context_1): Set context->signal_frame to
703         fs->signal_frame.
704         (_Unwind_GetIPInfo): New function.
705         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
706         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
707         of _Unwind_GetIP.
708         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
709         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
710         * unwind-compat.c (_Unwind_GetIPInfo): New function.
711         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
712         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
713         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
714         * config/i386/linux-unwind.h (x86_fallback_frame_state,
715         x86_64_fallback_frame_state): Set fs->signal_frame.
716         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
717         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
718         (frob_update_context): Likewise.  Workaround missing S flag in
719         Linux 2.6.12 - 2.6.16 kernel vDSOs.
720         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
721         Remove the psw_addr + 1 hack.
722
723 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
724
725         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
726         with aggregates here.
727         (find_func_aliases): Remove code for &<aggregate> from here.
728
729 2006-02-26  Roger Sayle  <roger@eyesopen.com>
730
731         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
732         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
733         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
734         as (X & C) ne/eq 0.
735
736 2006-02-26  Roger Sayle  <roger@eyesopen.com>
737
738         PR middle-end/19983
739         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
740
741 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
742
743         * opts.c (decode_options): Do not handle flag_strength_reduce.
744         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
745         and OPT_fstrength_reduce.
746         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
747         flag_prefetch_loop_arrays for being nonzero.
748         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
749         no-ops.
750         (fprefetch-loop-arrays-rtl): Removed.
751         (flag_prefetch_loop_arrays): Do not specify the value.
752
753         * doc/passes.texi: Update documentation of loop optimizer
754         passes.
755         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
756         -frerun-loop-opt): Remove.
757
758 2006-02-26  Richard Guenther  <rguenther@suse.de>
759
760         PR tree-optimization/26421
761         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
762         in function calls that are ADDR_EXPRs as using the whole structure.
763
764 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
765
766         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
767         * tree-pass.h (pass_loop_optimize): Remove.
768         * passes.c (pass_loop_optimize): Never run it.
769         * toplev.c (backend_init): Don't call init_loop.
770         * opts.c (flag_loop_optimize_set): Remove.
771         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
772         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
773         the old RTL loop optimizer when profiling enabled.
774         * predict.c (tree_estimate_probability): Always strip builtin_expect.
775         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
776         pre-headers for the sake of the old RTL loop optimizer.
777         * Makefile.in: Remove all references to loop.o.
778
779         * doc/invoke.texi: Remove all references to -floop-optimize
780         and -frerun-loop-opt.
781
782 2006-02-26  Zack Weinberg  <zackw@panix.com>
783
784         * doc/md.texi (Machine Constraints): Refer to all files with paths
785         relative to gcc directory (i.e. config/CPU/file).  Add missing
786         @table @code ... @end table to M32C subsection.
787
788 2006-02-26  Roger Sayle  <roger@eyesopen.com>
789
790         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
791         (X & 1) == 0.
792         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
793
794 2006-02-26  Roger Sayle  <roger@eyesopen.com>
795             James A. Morrison  <phython@gcc.gnu.org>
796
797         PR middle-end/21137
798         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
799         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
800         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
801         signedness of the shift operation.
802
803 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
804
805         PR tree-optimization/26359
806         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
807
808 2006-02-25  Roger Sayle  <roger@eyesopen.com>
809
810         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
811         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
812         as X == 0, and some symmetry related transformations.
813         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
814
815 2006-02-25  Roger Sayle  <roger@eyesopen.com>
816
817         PR middle-end/23673
818         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
819         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
820         symmetry related transformations.  Fold (X^C1) == C2 as
821         X == (C1^C2).
822
823 2006-02-25  Juergen Weigert  <jw@suse.de>
824         Richard Guenther  <rguenther@suse.de>
825
826         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
827
828 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
829
830         * combine.c (gen_lowpart_or_truncate): Call
831         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
832
833 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
834
835         * doc/invoke.texi: Move -fopenmp description to "Options for
836         Code Generation".
837         Remove reference to -lgomp.
838
839 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
840
841         * doc/install.texi: Require GNU tar version 1.14.
842
843 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
844
845         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
846         * doc/invoke.texi (C++ Dialect Options): Document
847         -fno-use-cxa-get-exception-ptr.
848         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
849         * configure: Regenerate.
850         * c.opt (fuse-cxa-get-exception-ptr): New.
851         * c-opts.c (c_common_handle_option): Handle
852         OPT_fuse_cxa_get_exception_ptr.
853         * c-common.c (flag_use_cxa_atexit): Update documentation.
854         (flag_use_cxa_get_exception_ptr): New.
855         * c-common.h (flag_use_cxa_get_exception_ptr): New.
856         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
857         documentation.
858         (C_COMMON_OVERRIDE_OPTIONS): New.
859
860 2006-02-24  Roger Sayle  <roger@eyesopen.com>
861
862         PR middle-end/24952
863         * combine.c (try_combine): Explicitly check whether GET_CODE is
864         a SET or a CLOBBER, instead on checking that it isn't a USE.
865
866 2006-02-24  Roger Sayle  <roger@eyesopen.com>
867
868         * fold-const.c (fold_comparison): New subroutine of fold_binary
869         containing transformations common to both the equality and
870         ordering relational operators, factored out of fold_binary.
871         (fold_binary): Separate out the equality operators (EQ_EXPR
872         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
873         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
874         transformations common to both.
875         (fold_div_compare): Fix latent bugs in the previously unreachable
876         LT_EXPR and GE_EXPR cases.
877
878 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
879
880         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
881         decl libname for clog to __clog on AIX.
882
883         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
884
885 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
886
887         PR target/26453
888         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
889         output traceback table for thunks.  Localise rs6000_stack_info call.
890
891 2006-02-23  Roger Sayle  <roger@eyesopen.com>
892             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
893
894         * gthr-posix.h (__gthrw): Fix typo in comment.
895
896 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
897
898         * doc/cpp.texi (Character sets): Document that we do support
899         input files to be in any character set.
900
901 2006-02-23  Jeff Law  <law@redhat.com>
902
903         * tree.h (PHI_ARG_NONZERO): Remove.
904         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
905         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
906         node to the new node.
907
908         PR tree-optimization/26425
909         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
910         min/max, then assume its varying.
911
912 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
913
914         PR rtl-optimization/26316
915         * rtlanal.c (enum may_trap_p_flags): New.
916         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
917         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
918         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
919         (may_trap_after_code_motion_p): New function.
920         * loop-invariant.c (find_identical_invariants): Fix dump formating.
921         (find_invariant_insn): Use may_trap_after_code_motion_p.
922         * rtl.h (may_trap_after_code_motion_p): Declare.
923
924 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
925
926         * emit-rtl.c (immed_double_const): Cleanup.
927
928 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
929
930         Fix PR tree-optimization/26376
931         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
932         remove assert.
933
934 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
935
936         PR middle-end/26412
937         * gimplify.c (omp_add_variable): Guard variable size decl test with
938         DECL_SIZE (decl) check.
939
940 2006-02-23  Richard Guenther  <rguenther@suse.de>
941
942         PR middle-end/26439
943         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
944         like aggregate types.
945
946 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
947
948         * configure.ac: Add --with{,out}-long-double-128 configure option.
949         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
950         * configure: Rebuilt.
951         * config.in: Rebuilt.
952         * doc/install.texi (Options specification): Document
953         --with-long-double-128.
954
955         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
956         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
957         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
958         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
959
960 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
961
962         * config/s390/s390.c (override_options): Handle
963         TARGET_DEFAULT_LONG_DOUBLE_128.
964
965         * config/alpha/alpha.c (override_options): Handle
966         TARGET_DEFAULT_LONG_DOUBLE_128.
967
968         * config/sparc/sparc.c (sparc_override_options): Handle
969         TARGET_DEFAULT_LONG_DOUBLE_128.
970
971 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
972
973         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
974         (real-install-headers-tar, real-install-headers-cpio)
975         (real-install-headers-cp): New targets.
976
977 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
978
979         * tree.h (variable_section): Delete.
980         * varasm.c (variable_section): Delete.
981
982 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
983
984         * install.texi: Add notes on install.texi2html.
985         (Building in parallel): Do not use footnotes.
986
987 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
988
989         PR libgomp/26234
990         * doc/install.texi (Configuration): Document --disable-libgomp.
991
992 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
993
994         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
995
996 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
997
998         * config/i386/sse.md (vec_extractv2df_1_sse): New.
999         (vec_extractv2df_0_sse): New.
1000
1001 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1002
1003         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1004         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1005         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1006         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1007         to the result of the expression.
1008         (def_cfa_1): Adjust.
1009         (frame_pointer_cfa_offset): Rename to...
1010         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1011         (convert_cfa_to_loc_list): Rename to...
1012         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1013         Pass it on to build_cfa_loc.
1014         (compute_frame_pointer_to_cfa_displacement): Rename to...
1015         (compute_frame_pointer_to_fb_displacement): ... this.  New
1016         offset parameter.  Use it in computation.
1017         (gen_subprogram_die): Compute cfa_fb_offset with the new
1018         macro, and use it to compute the fb loc list and the
1019         displacement.
1020
1021 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1022
1023         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1024         replaced with register_operand.
1025         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1026         non-DREG is expensive.
1027         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1028         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1029         involving memory.
1030
1031 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1032
1033         * doc/install.texi2html: Use set -e.
1034
1035 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1036
1037         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1038         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1039         * doc/invoke.texi (-fshared-data): Delete.
1040         * common.opt (fshared-data): Delete.
1041         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1042         (assemble_static_space): Remove #if 0 code.
1043         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1044         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1045         * config/cris/cris.h: Remove FIXME.
1046
1047 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1048
1049         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1050         hooks.
1051
1052 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1053
1054         PR middle-end/26379
1055         * combine.c (simplify_shift_const_1): Disable nested shifts
1056         optimization for vector shifts.
1057
1058 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1059
1060         PR tree-optimization/26361
1061         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1062         of unsigned integer types.
1063
1064 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1065
1066         * tree-chrec.c (eq_evolutions_p): New.
1067         * tree-chrec.h (eq_evolutions_p): Declared.
1068         * tree-data-ref.c: Fix formatting.
1069         (datadep_stats, dependence_stats): New.
1070         (gcd): Moved...
1071         (print_direction_vector): New.
1072         (dump_data_dependence_relation): Use print_direction_vector.
1073         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1074         (compute_subscript_distance): Static.
1075         (initialize_data_dependence_relation): Static.  Get the number
1076         of loops surrounding the references from the callers, and initialize
1077         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1078         base_object_differ_p analyzers.
1079         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1080         compute_overlap_steps_for_affine_1_2,
1081         analyze_subscript_affine_affine): Count the classified dependences.
1082         Print a message when a test failed.
1083         (can_use_analyze_subscript_affine_affine): New.
1084         (analyze_siv_subscript): Compute the data dependences on symbolic
1085         scevs that verify can_use_analyze_subscript_affine_affine.
1086         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1087         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1088         Handle symbolic scevs.
1089         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1090         analyzed.
1091         (subscript_dependence_tester): Moved...
1092         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1093         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1094         DDR_SIZE_VECT instead of getting it in parameter.
1095         (subscript_dependence_tester): ... here.  Take as a parameter
1096         loop_nest_depth.  Call build_classic_dist_vector and
1097         build_classic_dir_vector.
1098         (compute_affine_dependence): Update subscript_dependence_tester
1099         parameters.  Update datadep_stats counters.  Call
1100         compute_subscript_distance.
1101         (compute_self_dependence): Save the dist and dir vectors.  Call
1102         compute_subscript_distance.
1103         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1104         (compute_all_dependences): Reorder parameters as they were before
1105         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1106         compute_subscript_distance.  Update the use of
1107         compute_affine_dependence and initialize_data_dependence_relation.
1108         (find_data_references_in_loop): Handle COMPONENT_REF.
1109         (compute_data_dependences_for_loop): Initialize dependence_stats.
1110         Don't call build_classic_dist_vector and build_classic_dir_vector.
1111         Update the parameters of initialize_data_dependence_relation and
1112         compute_all_dependences.  Print the statistics from datadep_stats.
1113         (analyze_all_data_dependences): Static.  Not used until the pass for
1114         checking the data dependences is contributed.
1115         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1116         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1117         (initialize_data_dependence_relation, compute_affine_dependence,
1118         analyze_all_data_dependences, compute_subscript_distance): Removed.
1119         (print_direction_vector): New.
1120         * lambda.h (gcd): ... here.
1121         (lambda_vector_gcd): Moved here from gcd_vector.
1122         * lambda-code.c (gcd, gcd_vector): Removed.
1123         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1124         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1125
1126 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1127
1128         * ipa-type-escape.c: Tidy some comments and white space.
1129         * tree-ssa-operands.c: Likewise.
1130
1131 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1132
1133         PR tree-opt/25879
1134         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1135         (dump_decl_name): Do not walk the decl tree chains.
1136         * tree-pass.h (TDF_CHAIN): Remove.
1137
1138 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1139
1140         * Makefile.in (C): Remove
1141         (PROTO): Remove
1142         (.PHONY): Remove C and PROTO
1143
1144 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1145
1146         PR middle-end/26236
1147         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1148         deprecated CHAR_TYPE tree code.
1149
1150 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1151
1152         * configure.ac (target_list): Add install-info, dvi, html.
1153         * configure: Regenerate.
1154
1155         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1156         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1157         treelang/Make-lang.in: Do not use double-colon rules.
1158
1159 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1160
1161         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1162         (TMT_USED_ALONE): New macro.
1163         * tree-pass.h (PROP_tmt_usage): New property.
1164         (TODO_update_tmt_usage): New todo.
1165         * tree-ssa-alias.c (updating_used_alone): New variable.
1166         (recalculate_used_alone): New function.
1167         (compute_may_aliases): Set updating_used_alone, call
1168         recalculate_used_alone.
1169         * tree-sra.c (pass_sra): Note that this pass destroys
1170         PROP_tmt_usage, and add TODO_update_tmt_usage.
1171         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1172         * tree-flow.h (updating_used_alone): Prototype.
1173         (recalculate_used_alone): Ditto.
1174         * passes.c (execute_todo): Add code to set updating_used_alone,
1175         and call recalculate.
1176         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1177         for clobber if used alone, and add assert to verify used_alone
1178         status.
1179
1180 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1181
1182         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1183         for non tls symbols added.
1184         (legitimize_address): Do nothing for PLUS expressions if one of the
1185         addends is a tls symbol reference.
1186
1187 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1188
1189         PR bootstrap/25476
1190
1191         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1192
1193         * Makefile.in (BOOTSTRAPPING): New.
1194         (quickstrap): New definition if BOOTSTRAPPING=yes.
1195
1196         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1197         * configure.ac: Substitute all_selected_languages with the languages
1198         that were configured.  For all the other variables except
1199         lang_specs_files, include all the languages in the tree.
1200         * configure: Regenerate.
1201
1202         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1203         if there is one.  Run the commands to run fixincludes in the same
1204         subshell.
1205
1206         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1207         * doc/install.texi: Document exact conventions for searching target tools.
1208         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1209         something more about building an Ada cross-compiler.  Don't list GNU Make
1210         requirements which affect all platforms.
1211
1212 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1213
1214         PR middle-end/19543
1215         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1216         only equivalent if the have both the same mode and precision.
1217
1218 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1219
1220         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1221
1222 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1223             Steven Bosscher  <stevenb.gcc@gmail.com>
1224
1225         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1226         constant pool references to identify stack mode constants.
1227         * rtlanal.c (constant_pool_constant_p): New predicate to check
1228         whether operand is a floating point constant in the pool.
1229         * rtl.h (constant_pool_constant_p): Prototype here.
1230         * loop.c (scan_loop): Avoid hoisting constants from the constant
1231         pool on STACK_REGS targets.
1232         (load_mems): Likewise.
1233         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1234         loads into x87 registers expensive in terms of register pressure.
1235
1236 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1237
1238         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1239         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1240
1241 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1242
1243         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1244         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1245
1246 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1247
1248         * doc/invoke.texi: Document -fipa-pta.
1249         * common.opt: Add ipa-pta option.
1250         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1251         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1252         (do_ds_constraint): Ditto.
1253         (get_constraint_for): Only add to referenced_vars if
1254         referenced_vars exists.
1255         (insert_into_field_list): Rewrite to do this unsorted.
1256         (insert_into_field_list_sorted): Rename old insert_into_field_list
1257         to this.
1258         (create_function_info_for): Use insert_into_field_list_sorted.
1259         (create_variable_info_for): Rewrite so it uses unsorted version,
1260         since the field list is sorted.
1261         (intra_create_variable_infos): Only add to referenced_vars if
1262         referenced_vars exists.
1263         (ipa_pta_execute): Init heapvars, and delete when done.
1264         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1265
1266 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1267
1268         * doc/install.texi: Add missing `@samp'.
1269
1270 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1271
1272         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1273         Use the arguments.
1274
1275 2006-02-18  Mark Wielaard  <mark@klomp.org>
1276
1277         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1278         who added new 4.1 features, bug fixes and integration support.
1279
1280 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1281
1282         PR target/26350
1283         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1284         MEM for ABI_V4 pic.
1285
1286 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1287
1288         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1289         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1290         (copy_insn_1): Likewise.  Don't copy each field individually.
1291         Reindent.
1292         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1293         of RTX_SIZE.
1294         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1295         * rtl.c (rtx_size): Rename variable to...
1296         (rtx_code_size): ...this.
1297         (rtx_size): New function.
1298         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1299         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1300         Reindent.
1301         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1302         * rtl.h (rtx_code_size): New variable.
1303         (rtx_size): Change from a variable to a function.
1304         (RTX_SIZE): Rename to...
1305         (RTX_CODE_SIZE): ...this.
1306
1307         PR target/9703
1308         PR tree-optimization/17106
1309         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1310         (Anchored Addresses): New section.
1311         * doc/invoke.texi (-fsection-anchors): Document.
1312         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1313         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1314         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1315         * hooks.c (hook_bool_mode_rtx_false): New function.
1316         * hooks.h (hook_bool_mode_rtx_false): Declare.
1317         * gengtype.c (create_optional_field): New function.
1318         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1319         SYMBOL_REF_IN_BLOCK_P is true.
1320         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1321         (min_anchor_offset, max_anchor_offset): Likewise.
1322         (use_anchors_for_symbol_p): New hook.
1323         * toplev.c (compile_file): Call output_object_blocks.
1324         (target_supports_section_anchors_p): New function.
1325         (process_options): Check that -fsection-anchors is only used on
1326         targets that support it and when -funit-at-a-time is in effect.
1327         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1328         if the decl doesn't have one.
1329         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1330         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1331         of force_const_mem through use_anchored_address.
1332         (expand_expr_constant): New function.
1333         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1334         calling expand_expr for INDIRECT_REF.
1335         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1336         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1337         * expr.h (use_anchored_address): Declare.
1338         * loop-unroll.c: Don't declare rtx vectors here.
1339         * explow.c: Include output.h.
1340         (validize_mem): Call use_anchored_address.
1341         (use_anchored_address): New function.
1342         * common.opt (-fsection-anchors): New switch.
1343         * varasm.c (object_block_htab, anchor_labelno): New variables.
1344         (hash_section, object_block_entry_eq, object_block_entry_hash)
1345         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1346         (use_blocks_for_decl_p, change_symbol_section): New functions.
1347         (get_variable_section): New function, split out from assemble_variable.
1348         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1349         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1350         symbol has already been created.
1351         (assemble_variable_contents): New function, split out from...
1352         (assemble_variable): ...here.  Don't output any code for
1353         block symbols; just pass them to place_block_symbol.
1354         Use get_variable_section and assemble_variable_contents.
1355         (get_constant_alignment, get_constant_section, get_constant_size): New
1356         functions, split from output_constant_def_contents.
1357         (build_constant_desc): Create a block symbol if use_object_blocks_p
1358         says so.  Or into SYMBOL_REF_FLAGS.
1359         (assemble_constant_contents): New function, split from...
1360         (output_constant_def_contents): ...here.  Don't output any code
1361         for block symbols; just pass them to place_section_symbol.
1362         Use get_constant_section and get_constant_alignment.
1363         (force_const_mem): Create a block symbol if use_object_blocks_p and
1364         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1365         (output_constant_pool_1): Add an explicit alignment argument.
1366         Don't switch sections here.
1367         (output_constant_pool): Adjust call to output_constant_pool_1.
1368         Switch sections here instead.  Don't output anything for block symbols;
1369         just pass them to place_block_symbol.
1370         (init_varasm_once): Initialize object_block_htab.
1371         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1372         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1373         (place_block_symbol, get_section_anchor, output_object_block)
1374         (output_object_block_htab, output_object_blocks): New functions.
1375         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1376         (TARGET_ASM_OUT): Include it.
1377         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1378         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1379         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1380         (TARGET_INITIALIZER): Include them.
1381         * rtl.c (rtl_check_failed_block_symbol): New function.
1382         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1383         (block_symbol, object_block): New structures.
1384         (rtx_def): Add a block_symbol field to the union.
1385         (BLOCK_SYMBOL_CHECK): New macro.
1386         (rtl_check_failed_block_symbol): Declare.
1387         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1388         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1389         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1390         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1391         * output.h (output_section_symbols): Declare.
1392         (object_block): Name structure.
1393         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1394         (default_use_anchors_for_symbol_p): Declare.
1395         * Makefile.in (RTL_BASE_H): Add vec.h.
1396         (explow.o): Depend on output.h.
1397         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1398         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1399         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1400         (rs6000_use_blocks_for_constant_p): New function.
1401
1402 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1403
1404         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1405
1406 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1407
1408         PR tree-opt/25680
1409         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1410         IMAGPART_EXPR.
1411
1412 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1413
1414         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1415         is_aliased.
1416         Update all users.
1417
1418 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1419
1420         PR middle-end/26334
1421         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1422         instead of DECL_REGISTER.
1423
1424 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1425
1426         PR ada/13408
1427         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1428
1429 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1430
1431         PR target/24837
1432         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1433         * opth-gen.awk: Handle Var and InverseMask together.
1434         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1435         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1436         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1437         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1438         used together.
1439         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1440         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1441         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1442         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1443         LINUX_DYNAMIC_LINKER): Define.
1444         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1445         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1446         TARGET_GLIBC.
1447         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1448         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1449         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1450         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1451         (TARGET_C99_FUNCTIONS): Don't define.
1452         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1453         GLIBC_DYNAMIC_LINKER.
1454         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1455         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1456         GLIBC_DYNAMIC_LINKER64): Define.
1457         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1458         LINUX_DYNAMIC_LINKER64.
1459         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1460         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1461         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1462         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1463         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1464         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1465         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1466         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1467         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1468         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1469         and LINUX_DYNAMIC_LINKER32.
1470         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1471         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1472         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1473         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1474         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1475         TARGET_GLIBC.
1476         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1477         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1478         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1479         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1480         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1481         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1482         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1483         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1484         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1485         LINUX_DYNAMIC_LINKER): Define.
1486         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1487         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1488         GLIBC_DYNAMIC_LINKER64): Define.
1489         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1490         LINUX_DYNAMIC_LINKER64.
1491         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1492         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1493         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1494         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1495         LINUX_DYNAMIC_LINKER): Define.
1496         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1497         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1498         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1499         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1500         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1501         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1502         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1503         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1504         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1505         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1506         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1507         * doc/invoke.texi (-muclibc): Remove caveat about supported
1508         targets.
1509
1510 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1511
1512         * doc/cpp.texi (__TIMESTAMP__): Document.
1513
1514 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1515
1516         PR middle-end/25600
1517         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1518         C is one less than the width of X (and related transformations).
1519         * simplify-rtx.c (simplify_unary_operation_1): Transform
1520         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1521         depending on STORE_FLAG_VALUE, were C is one less then the
1522         width of X.
1523
1524 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1525
1526         Fix PR tree-optimization/26341
1527         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1528         about NAME_MEMORY_TAG's.
1529
1530 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1531
1532         PR target/26255
1533         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1534         with hardware float support, and software float support.  Add fcpy
1535         alternative to hardware patterns.  Add alternatives to copy between
1536         general and floating-point registers to the 32-bit pattern.
1537         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1538         secondary reload to load a QI or HI mode constant into a floating
1539         point register.
1540         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1541         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1542
1543 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1544
1545         PR target/26272
1546         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1547         pc to the pattern.
1548         (load_macho_picbase_di): Likewise.
1549
1550 2006-02-16  Jeff Law  <law@redhat.com>
1551
1552         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1553         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1554         (ssa_name_nonzero_p): Likewise.
1555         (get_value_range): Return NULL if VRP is not running.
1556         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1557         VRP routines do not discover a range.
1558         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1559         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1560         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1561         (tree_expr_nonnegative_p): Similarly.
1562         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1563         (restore_nonzero_vars_to_original_value): Remove.
1564         (unsafe_associative_fp_binop): Remove.
1565         (tree_ssa_dominator_optimize): Remove initialization and
1566         finalization of nonzero_vars and nonzero_vars_stack.
1567         (dom_opt_initialize_block): No longer push marker on
1568         nonzero_vars_stack.
1569         (dom_opt_finalize_block): No longer call
1570         restore_nonzero_vars_to_original_value.
1571         (record_equivalences_from_phis): No longer look for
1572         nonzero PHI arguments.
1573         (cprop_into_successor_phis): No longer propagate nonzero
1574         property into PHI arguments.  Lose unused argument.  Caller
1575         updated.
1576         (record_equivalences_from_stmt): No longer record nonzero
1577         values for SSA_NAMEs.
1578         (lookup_avail_expr): No longer use nonzero_vars.
1579
1580         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1581         for sizetype when sizetype is unsigned.
1582
1583 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1584
1585         PR rtl-optimization/25603
1586         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1587         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1588         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1589         with new meaning of SETS.
1590
1591 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1592
1593         PR target/20353
1594         PR target/24578
1595         PR target/24837
1596         * config/linux.opt: New file.
1597         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1598         LINUX_DYNAMIC_LINKER): Define.
1599         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1600         * config.gcc (*-*-linux*): Define extra_options.
1601         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1602         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1603         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1604         GLIBC_DYNAMIC_LINKER.
1605         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1606         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1607         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1608         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1609         * doc/invoke.texi (GNU/Linux Options): New section.
1610
1611 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1612
1613         * config/sparc/sparc.md (setjmp): Rewrite.
1614         (setjmp_32): Delete.
1615         (setjmp_64): Likewise.
1616
1617 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1618
1619         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1620          previous change.
1621
1622 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1623
1624         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1625         read-write uses.
1626
1627 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1628
1629         PR rtl-optimization/26296
1630         * Makefile.in (loop-invariant.c): Add except.h dependency.
1631         * loop-invariant.c: Include except.h.
1632         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1633
1634 2005-02-16  Paul Brook  <paul@codesourcery.com>
1635
1636         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1637         for reloads.
1638
1639 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1640
1641         PR rtl-optimization/25636
1642         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1643         when deciding whether an insn is an initializing insn.
1644
1645 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1646
1647         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1648         (tree_code_size): Ditto.
1649         * tree.h (struct tree_memory_tag): Remove parent_var.
1650         (struct tree_struct_field_tag): New.
1651         (SFT_OFFSET): New.
1652         (SFT_SIZE): New.
1653         (union tree_node): Add sft member.
1654         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1655         specially here.
1656         (create_sft): Add size and offset argument, set SFT_OFFSET and
1657         SFT_SIZE.
1658         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1659         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1660         * tree-flow-inline.h (get_subvar_at): Update for
1661         SFT_OFFSET/SFT_SIZE.
1662         (var_can_have_subvars): Ditto.
1663         (overlap_subvar): Ditto.
1664         * print-tree.c (print_node): Print out interesting things for
1665         SFT's.
1666         * tree-flow.h (struct subvar): Remove offset and size members.
1667         * tree-ssa-operands.c (get_expr_operands): Update for
1668         get_indirect_ref_operands changes.
1669         (get_indirect_ref_operands): Call add_virtual_operand instead of
1670         add_stmt_operand.  Only recurse on base var if requested.
1671         (access_can_touch_variable): New function.
1672         (add_stmt_operand): Split virtual operand handling into ...
1673         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1674         arguments.  Prune alias sets.
1675         (add_call_clobber_ops): Call add_virtual_operand.
1676
1677 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1678
1679         PR middle-end/26300
1680         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1681
1682         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1683         than TREE_CODE as index into omp_clause_num_ops array.
1684
1685 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1686
1687         PR rtl-optimization/26184
1688         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1689         uses_of_defs.
1690         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1691         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1692         must_precede, must_follow and tobe_scheduled.
1693
1694         PR other/26147
1695         * opts.c (common_handle_option): Free new_option pointer.
1696         * df-core.c (df_analyze): Free postorder pointer.
1697
1698 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1699
1700         * Makefile.in: Fix the examples about the use of stamps
1701
1702 2006-02-15  Michael Matz  <matz@suse.de>
1703
1704         PR middle-end/22275
1705
1706         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1707         influenced by maximum_field_alignment or DECL_PACKED.
1708         (update_alignment_for_field): Ditto.
1709         (place_field): Ditto.
1710         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1711         this behaviour.
1712
1713 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1714
1715         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1716         (debug_flow_info): Pass it.
1717         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1718         * bb-reorder.c (reorder_basic_blocks): Likewise.
1719         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1720         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1721         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1722         * gcse.c (gcse_main, bypass_jumps): Likewise.
1723         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1724         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1725         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1726         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1727         * rtl.h (dump_flow_info): Adjust prototype.
1728         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1729         * var-tracking.c (variable_tracking_main): Likewise.
1730         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1731         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1732         options.
1733
1734 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1735
1736         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1737         construction.
1738
1739 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1740
1741         PR tree-optimization/26209
1742         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1743         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1744         eh edges.
1745         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1746
1747 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1748
1749         PR middle-end/23670
1750         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1751         (X,Y) and the corresponding symmetry related transformations.
1752         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1753         (X,Y) and its symmetry related transformations.
1754
1755 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1756
1757         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1758         and GEU.
1759
1760 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1761
1762         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1763
1764 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1765
1766         PR bootstrap/26053
1767         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1768         support COMDAT group.
1769         * configure: Regenerate.
1770
1771 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1772
1773         PR middle-end/26279
1774         PR middle-end/26280
1775         PR middle-end/26283
1776         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1777
1778 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1779
1780         Fix PR tree-optimization/26260
1781
1782         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1783         param.
1784         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1785         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1786         * tree-ssa-structalias.c (create_variable_info_for): Use
1787         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1788
1789 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1790
1791         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1792         Document.
1793         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1794         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1795         of the ending condition.
1796         * tree-ssa-loop-manip.c: Include params.h.
1797         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1798         tree_unroll_loop): New functions.
1799         * tree-pass.h (pass_loop_prefetch): Declare.
1800         * loop.c (rest_of_handle_loop_optimize): Test for
1801         -fprefetch-loop-arrays-rtl.
1802         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1803         * timevar.def (TV_TREE_PREFETCH): New timevar.
1804         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1805         pass_loop_prefetch): New.
1806         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1807         (cleanup_tree_cfg_loop): Call scev_reset.
1808         * common.opt (fprefetch-loop-arrays-rtl): Add.
1809         * tree-ssa-loop-prefetch.c: New file.
1810         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1811         (new_temp_expr_table): Initialize expr_vars.
1812         (free_temp_expr_table): Cleanup expr_vars.
1813         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1814         expressions from being merged into one.
1815         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1816         (struct tree_niter_desc): Add control, bound and cmp fields.
1817         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1818         Declare.
1819         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1820         (tree-cfgcleanup.o): Add SCEV_H dependency.
1821         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1822         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1823
1824 2006-02-14  Richard Guenther  <rguenther@suse.de>
1825
1826         PR tree-optimization/26258
1827         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1828         in PHI argument processing.
1829
1830 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1831
1832         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1833         new expression in the requested machine mode.
1834
1835 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1836
1837         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1838         directly, instead let do_compare_rtx_and_jump handle this for us.
1839         * expr.c (expand_expr_real_1): Likewise.
1840         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1841         before do_jump_by_parts_greater.
1842         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1843         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1844
1845 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1846
1847         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1848
1849 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1850
1851         PR rtl-optimization/26235
1852         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1853         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1854         format.
1855
1856 2006-02-13  Jeff Law  <law@redhat.com>
1857
1858         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1859         TRUTH_XOR_EPR.
1860
1861 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1862
1863         PR middle-end/26092
1864         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1865         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1866         first to verify it is still a builtin.
1867
1868 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1869
1870         * dwarf2out.c (base_type_die): Don't add AT_name here.
1871         (subrange_type_die): Don't add AT_name here.
1872         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1873
1874 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1875
1876         PR rtl-optimization/26247
1877         PR rtl-optimization/26248
1878         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
1879
1880 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
1881
1882         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
1883         * config/fixtfdi.c: Likewise.
1884         * config/fixunstfdi.c: Likewise.
1885         * config/floatditf.c: Likewise.
1886
1887 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1888
1889         PR middle-end/24427
1890         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
1891         into (X,C2) if C1 is a subset of the bits of C2.  Transform
1892         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
1893         (X&(C1&~C2))|C2.
1894         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
1895
1896 2006-02-13  Josh Conner  <jconner@apple.com>
1897
1898         PR target/25376
1899         * varasm.c (function_section): Check for section name before
1900         calling select_section on targets that define
1901         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
1902         unlikely_text_section instead of hot_function_section if
1903         first_function_block_is_cold.
1904
1905 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
1906
1907         PR middle-end/25335
1908         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
1909
1910 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1911
1912         PR rtl-optimization/26222
1913         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
1914         after tree->rtl expansion.
1915         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
1916         before passing it to emit_move_insn.
1917
1918 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1919
1920         * doc/invoke.texi (-Write-strings): Document that it is enabled by
1921         default.
1922         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
1923         Clarify documentation.
1924         * c-common.h (warn_write_strings): Remove.
1925         * c-common.c (warn_write_strings): Likewise.
1926         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
1927         default for C++.
1928
1929 2006-02-12  Roger Sayle  <roger@eyesopen.com>
1930
1931         PR middle-end/25724
1932         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
1933         (do_jump_parts_zero_rtx): New function renamed from
1934         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
1935         (do_jump_parts_equality_rtx): New function split out from
1936         do_jump_parts_equality.  Old implementation renamed as above.
1937         Call do_jump_parts_zero_rtx if either operand is zero.
1938         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
1939         do all of the heavy lifting.
1940         (do_compare_rtx_and_jump): Handle multi-word comparisons by
1941         calling either do_jump_by_parts_greater_rtx or
1942         do_jump_by_parts_equality_rtx.
1943         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
1944         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
1945         moved to do_compare_rtx_and_jump, call it directly.
1946         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
1947         mode argument.  Call do_compare_rtx_and_jump.
1948         (emit_case_nodes): Update calls to do_jump_if_equal.
1949
1950 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1951
1952         PR rtl-optimization/26225
1953         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
1954
1955 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
1956
1957         PR rtl-optimization/26232
1958         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
1959
1960 2006-02-11  Jason Merrill  <jason@redhat.com>
1961
1962         PR tree-opt/24365
1963         * tree-inline.c (declare_return_variable): Just don't use the
1964         modify target if it's a gimple complex reg and the return slot
1965         isn't.
1966
1967 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
1968
1969         * doc/contrib.texi: Update my entry.
1970
1971 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
1972
1973         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
1974
1975 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
1976
1977         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
1978         expensive.
1979
1980 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
1981
1982         * doc/invoke.texi (-floop-optimize2): Removed.
1983         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
1984         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
1985         Test flag_branch_on_count_reg only if HAVE_doloop_end.
1986         * common.opt (floop-optimize2): Removed.
1987         (fmove-loop-invariants): Enabled by default.
1988
1989 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
1990
1991         * tree-if-conv.c (combine_blocks): Free the result of
1992         get_loop_exit_edges.
1993
1994 2006-02-10  Jeff Law  <law@redhat.com>
1995
1996         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
1997
1998         PR tree-optimization/26213
1999         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2000         loop trying to follow SSA_NAME_VALUE chains.
2001
2002 2006-02-10  Richard Guenther  <rguenther@suse.de>
2003
2004         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2005         deal with structures that end in implicitly variable sized arrays.
2006
2007 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2008
2009         PR rtl-optimization/24762
2010         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2011         eh edges.
2012
2013 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2014
2015         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2016         (struct ivopts_data): Add regs_used field.
2017         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2018         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2019         instead of loop_data->regs_used;
2020         (free_loop_data): Do not free aux fields for loops.
2021         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2022         and tree_ssa_iv_optimize_finalize.
2023
2024 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2025
2026         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2027
2028 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2029
2030         PR target/26141
2031         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2032         computing the effective result type.
2033
2034 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2035
2036         PR inline-asm/16194
2037         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2038         (tree_overlaps_hard_reg_set): Declare.
2039         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2040         type and signature to match function type expected by walk_tree.
2041         (tree_overlaps_hard_reg_set): New function.
2042         (decl_conflicts_with_clobbers_p): Rename to:
2043         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2044         Use tree_overlaps_hard_reg_set.  Changed caller.
2045         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2046         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2047         * cris.c (cris_md_asm_clobbers): Likewise.
2048
2049 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2050
2051         * reload1.c (emit_input_reload_insns): Delete code that tries to
2052         inherit using find_equiv_reg.
2053
2054 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2055
2056         * c-common.h (flag_const_strings): Don't declare.
2057         * c-common.c (flag_const_strings): Remove.
2058         * c.opt (fconst_strings): Remove.
2059         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2060         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2061         (c_common_init_options): Don't set flag_const_strings.
2062         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2063
2064 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2065
2066         * arm.md (tlobits_cbranch): New pattern.
2067         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2068         testing a single bit.
2069
2070 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2071
2072         PR tree-opt/26179
2073         * tree-ssa-pre.c (create_component_ref_by_pieces):
2074         Handle RETURN_DECL like VAR_DECL.
2075
2076 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2077
2078         PR middle-end/26134
2079         * fold-const.c (fold_indirect_ref_1): Fold
2080         "*(foo *)&complexfoo" to "__real__ complexfoo"
2081         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2082
2083 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2084
2085         * tree-flow-inline.h (var_can_have_subvars):
2086         Volatile variables should not have subvariables.
2087
2088 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2089
2090         PR 26180
2091         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2092         multiplying unsigned values.
2093         Tidy comments.
2094
2095 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2096
2097         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2098
2099 2006-02-08  Jason Merrill  <jason@redhat.com>
2100
2101         PR c++/25979
2102         * tree.def: Elaborate on difference from MODIFY_EXPR.
2103         * doc/c-tree.texi (INIT_EXPR): Likewise.
2104         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2105         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2106         (gimplify_target_expr): Likewise.
2107         (gimplify_cond_expr): Remove target handling.
2108         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2109         (gimplify_expr): Clobber it here.
2110         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2111         Do return slot optimization if we have an INIT_EXPR.
2112
2113         PR tree-opt/24365
2114         * tree-inline.c (declare_return_variable): Also clear
2115         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2116
2117         PR c++/16405
2118         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2119
2120         PR middle-end/22439
2121         * gimplify.c (gimplify_one_sizepos): Fix typo.
2122
2123 2006-02-08  Jeff Law  <law@redhat.com>
2124
2125         PR tree-optimization/21417
2126         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2127         across a backedge if the control statement at the end of the
2128         block is data dependent on other statements in the same block.
2129         (record_temporary_equivalences_from_stmts): Remove over-conservative
2130         test for threading across backedges.
2131
2132         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2133         control statement, handle all three special cases in the same
2134         manner as they all have the same desired solution.  No longer
2135         special case edge flag updating when the post dominator is
2136         the exit block.
2137
2138 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2139
2140         * tree.def (CHAR_TYPE): Remove.
2141         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2142         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2143         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2144         (gen_string_type_die): Delete unreachable function.
2145
2146         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2147         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2148         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2149         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2150         * builtins.c (type_to_class): Likewise.
2151         * fold-const.c (fold_convert, build_range_check,
2152         merge_ranges): Likewise.
2153         * expr.c (count_type_elements): Likewise.
2154         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2155         * stor-layout.c (layout_type): Likewise.
2156         * ipa-type-escape.c (type_to_consider): Likewise.
2157         * gimplify.c (omp_firstprivatize_type_sizes,
2158         gimplify_type_sizes): Likewise.
2159         * explow.c (promote_mode): Likewise.
2160         * tree-sra.c (is_sra_scalar_type): Likewise.
2161         * varasm.c (output_constant): Likewise.
2162         * tree-inline.c (remap_type_1): Likewise.
2163         * convert.c (convert_to_pointer, convert_to_real,
2164         convert_to_integer, convert_to_complex): Likewise.
2165
2166 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2167
2168         * df-scan.c (df_def_record_1): A set destination may
2169         be a parallel regardless of mode.
2170
2171 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2172
2173         PR target/22209
2174         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2175         * config/mips/_tilib.c: Remove.
2176         * config/fixtfdi.c: New libgcc source file.
2177         * config/fixunstfdi.c: New source file.
2178         * config/floatditf.c: New source file.
2179         * config/floatunditf.c: New souce file.
2180         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2181         files above instead of config/mips/_tilib.c.
2182         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2183
2184 2006-02-08  Jeff Law  <law@redhat.com>
2185
2186         PR tree-optimization/26169
2187         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2188         threading jumps.
2189
2190 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2191
2192         * df.h (DF_REG_SIZE): Return the length of the initialized
2193         part of the array.
2194
2195 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2196
2197         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2198         __muldf3): Return a correctly signed zero.
2199
2200 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2201
2202         * passes.c (register_one_dump_file): Accept the current properties
2203         instead of pass number.  Adjust call to dump_register.  Remove
2204         duplicated code.
2205         (register_dump_files): Now a wrapper around...
2206         (register_dump_files_1): ... this one.  Do not modify the pass
2207         structure.
2208         (next_pass_1): Cosmetic fix.
2209         (execute_todo): Keep second parameter only.  Use curr_properties
2210         instead of fetching it from the pass structure.  Check and set
2211         last_verified.
2212         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2213         instead of fetching it from the pass structure.  Fix calls to
2214         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2215         after running the pass.  Reset last_verified.
2216         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2217         at the beginning.
2218         (FIRST_AUTO_NUMBERED_DUMP): New.
2219         (dump_register): Remove "num" parameter, assign it within the
2220         function.
2221         (get_dump_file_name): Modify template for dumps.
2222         * tree-dump.h (dump_register): Adjust prototype.
2223         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2224         (PROP_trees): Add PROP_gimple_lomp.
2225         (TODO_set_props): New.
2226         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2227         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2228         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2229
2230 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2231
2232         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2233         (sparc64-*-linux*): Likewise.
2234         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2235         * config/sparc/t-linux: New file.
2236         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2237         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2238         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2239         -m32 -mlong-double-128.
2240
2241         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2242         * config/alpha/t-linux: New file.
2243         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2244
2245         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2246         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2247         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2248         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2249         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2250         (CPP_ARCH32_SPEC): Remove.
2251
2252 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2253
2254         PR tree-optimization/26145
2255         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2256         bbs pointer.
2257
2258 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2259
2260         PR target/26109
2261         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2262         >= 240000 when generating code for SOM runtime.
2263         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2264         to $$dyncall when generating code for SOM runtime..
2265
2266 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2267
2268         PR c++/18150
2269         * doc/invoke.texi (-Wsequence-point): Update documentation
2270         that -Wsequence-point is implemented for C++ as well.
2271
2272 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2273
2274         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2275         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2276         (LIB_SPEC): Likewise.
2277         * doc/invoke.texi (SPARC options): Document -pthread.
2278
2279 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2280
2281         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2282         PIC addresses.
2283
2284 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2285
2286         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2287         Correct comment describing BOOLEAN_TYPE.
2288
2289 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2290
2291         * c.opt: C++ frontend supports -Wdiv-by-zero.
2292         * c-opts.c (c_common_handle_option): Remove dead case.
2293
2294 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2295
2296         * configure.ac (TLS assembler check): Do not enable TLS by
2297         default on SPARC/Solaris before version 10.
2298         * configure: Regenerate.
2299
2300 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2301
2302         * doc/invoke.texi (xl-compat): Document conversion and support
2303         routine names.
2304
2305 2006-02-07  Jeff Law  <law@redhat.com>
2306
2307         * tree-vrp.c (find_conditional_asserts): Update comments.
2308         (simplify_stmt_for_jump_threading): New.
2309         (identify_jump_threads, finalize_jump_threads): New.
2310         (vrp_finalize): Call identify_jump_threads.
2311         (execute_vrp): Call finalize_jump_threads.
2312         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2313         (vrp_element, vrp_data, vrp_element_p): Remove.
2314         (vrp_hash_elt, vrp_variables_stack): Remove.
2315         (vrp_hash, vrp_eq, record_range): Remove.
2316         (simplify_cond_and_lookup_avail_expr): Remove.
2317         (extract_range_from_cond): Remove.
2318         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2319         (simplify_stmt_for_jump_threading): New.
2320         (dom_thread_across_edge): New wrapper.
2321         (tree_ssa_dominator_optimize): No longer initialize or
2322         finalize any of the VRP datastructures.  Remove iteration
2323         step and simplify as a result of removal of iteration step.
2324         (pass_dominator): Perform a cfg cleanup after DOM.
2325         (dom_opt_finalize_block): Use the new common routines
2326         for threading jumps.  Simplify stack management slightly.
2327         No longer need to unwind VRP state.
2328         (record_equivalences_from_incoming_edge): No longer record
2329         VRP information.
2330         (eliminate_redundant_computations): No longer call
2331         simplify_cond_and_lookup_avail_expr.
2332         * tree-flow.h (potentially_threadable_block): Prototype.
2333         (thread_across_edge): Likewise.
2334         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2335         (tree-ssa-threadedge.o): Add dependencies.
2336         * tree-ssa-threadedge.c: New file.
2337         * passes.c (init_optimization_passes): Merge PHIs before
2338         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2339
2340 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2341
2342         * df-core.c (df_set_blocks): Do not dereference function pointers.
2343         (df_finish1): Likewise.
2344         (df_hybrid_search_forward): Likewise.
2345         (df_hybrid_search_backward): Likewise.
2346         (df_iterative_dataflow): Likewise.
2347         (df_analyze_problem): Likewise.
2348         (df_compact_blocks): Likewise.
2349         (df_dump): Likewise.
2350         * df-scan.c (df_rescan_blocks): Likewise.
2351         (df_record_entry_block_defs): Likewise.
2352
2353         * genconditions.c (write_conditions): Guard the definition of
2354         'insn_conditions' with the check on GCC version.
2355         (write_writer): Guard the traversal 'insn_conditions' with
2356         the check on GCC version.
2357
2358 2006-02-07  Richard Guenther  <rguenther@suse.de>
2359
2360         PR c++/26140
2361         Revert
2362         2006-01-30  Richard Guenther  <rguenther@suse.de>
2363         PR c++/23372
2364         * gimplify.c (gimplify_target_expr): Handle easy cases
2365         without creating a temporary.
2366
2367 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2368
2369         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2370         use of float in probability computations.  Use edge probabilities
2371         in place of statically computed probabilities.
2372         (min_spec_prob): New static variable.
2373         (schedule_insns): Initialize it.
2374         (GET_SRC_PROB): Removed.
2375         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2376
2377 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2378
2379         PR debug/24444
2380         * config/ia64/unwind-ia64.c: Revert last change.
2381         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2382         (INCOMING_FRAME_SP_OFFSET): Define.
2383
2384 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2385
2386         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2387
2388 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2389
2390         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2391         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2392         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2393         (ix86_return_in_memory): Handle TDmode.
2394         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2395         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2396
2397 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2398
2399         * reorg.c (dbr_schedule): Use dump_file instead of file.
2400
2401 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2402
2403         PR target/25917
2404         * config/ia64/predicates.md (extr_len_operand): New predicate.
2405         * config/ia64/ia64.md (extv): Tighten constraints.
2406         (extzv): Ditto.
2407         (*tbit_and_2): Ditto.
2408         (*tbit_and_3): Ditto.
2409         (*tbit_or_2): Ditto.
2410         (*tbit_or_3): Ditto.
2411         (*bit_zero): Ditto.
2412         (*bit_one): Ditto.
2413
2414 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2415
2416         PR target/23359
2417         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2418
2419 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2420
2421         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2422         loop_optimizer_init and loop_optimizer_finalize
2423         * tree-ssa-sink.c (execute_sink_code): Ditto.
2424         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2425         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2426         tree_ssa_loop_done): Ditto.
2427         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2428         * sched-ebb.c: Include output.h.
2429         (schedule_ebbs): Do not use dump argument.
2430         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2431         * loop.c (loop_dump_stream): Removed.
2432         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2433         argument.
2434         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2435         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2436         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2437         loop_iterations, strength_reduce, record_biv, record_giv,
2438         final_giv_value, check_final_value, check_ext_dependent_givs,
2439         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2440         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2441         dump_file instead of loop_dump_stream.
2442         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2443         argument dump_file.
2444         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2445         dump argument.
2446         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2447         * haifa-sched.c: Include output.h
2448         (schedule_insns, sched_init): Do not use dump argument.
2449         * mode-switching.c (optimize_mode_switching): Ditto.
2450         * modulo-sched.c (stats_file): Removed.
2451         (print_node_sched_params): Do not call argument dump_file.
2452         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2453         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2454         of stats_file.
2455         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2456         use dump argument.
2457         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2458         rtl_loop_init, rtl_loop_done): Ditto.
2459         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2460         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2461         Ditto.
2462         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2463         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2464         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2465         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2466         * emit-rtl.c (renumber_insns): Ditto.
2467         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2468         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2469         * regclass.c (regclass): Ditto.
2470         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2471         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2472         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2473         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2474         Ditto.
2475         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2476         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2477         to regclass.
2478         * gcse.c (gcse_file, debug_stderr): Removed.
2479         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2480         rest_of_handle_gcse): Do not use dump argument.
2481         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2482         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2483         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2484         compute_code_hoist_vbeinout, compute_code_hoist_data,
2485         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2486         compute_store_table, build_store_vectors, insert_insn_start_bb,
2487         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2488         store_motion): Use dump_file instead of gcse_file.
2489         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2490         * profile.c (profile_dump_file): Removed.
2491         (branch_prob): Use dump_file instead of profile_dump_file.
2492         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2493         dump_file.
2494         * tree-ssa-copy.c (dump_copy_of): Ditto.
2495         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2496         dump file to life_analysis.
2497         * bt-load.c (branch_target_load_optimize): Ditto.
2498         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2499         renumber_insns.
2500         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2501         regclass, dbr_schedule): Declaration changed.
2502         * sched-int.h (sched_init): Declaration changed.
2503         * tree-profile.c (tree_profile_dump_file): Removed.
2504         (tree_profile_hooks): Removed profile_dump_file hook.
2505         * rtl-profile (rtl_profile_dump_file): Removed.
2506         (rtl_profile_hooks): emoved profile_dump_file hook.
2507         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2508         changed.
2509         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2510         * tree-cfg.c (build_tree_cfg): Ditto.
2511         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2512         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2513         Declaration changed.
2514         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2515         life_analysis and schedule_insns.
2516         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2517         life_analysis.
2518         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2519         dbr_schedule.
2520         * config/mips/mips.c (mips_reorg): Ditto.
2521         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2522         schedule_ebbs.
2523
2524 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2525
2526         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2527         (s390_mangle_fundamental_type): New.
2528         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2529         Define.
2530
2531         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2532         (alpha_mangle_fundamental_type): New.
2533         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2534         Define.
2535
2536         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2537         Define.
2538         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2539         Define.
2540         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2541         (sparc_mangle_fundamental_type): New.
2542
2543 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2544
2545         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2546         (s390x-*-linux*): Likewise.
2547         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2548         * config/s390/t-linux: New file.
2549
2550 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2551
2552         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2553         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2554
2555 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2556
2557         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2558         (ANTIC_SAFE_LOADS): New macro.
2559         (find_or_generate_expression): Add prototype.
2560         (set_contains_value): Allow null set for sake of not always having
2561         to allocate ANTIC_SAFE_LOADS.
2562         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2563         Allow COMPONENT_REF too.
2564         (valid_in_set): Allow COMPONENT_REF.
2565         Check ANTIC_SAFE_LOADS too.
2566         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2567         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2568         rename.
2569         (can_PRE_operation): Add COMPONENT_REF.
2570         (create_component_ref_by_pieces): New function.
2571         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2572         (insert_aux): Move AGGREGATE_TYPE_P check here.
2573         (compute_avail): Set bb local stmt uids.
2574         (pass_pre): Use TODO_update_ssa_only_virtuals.
2575
2576 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2577
2578         * configure.ac: Unconditionally disable decimal float by default.
2579         * configure: Regenerate.
2580
2581 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2582
2583         * read-rtl.c (read_name): Terminate reading on EOF.
2584
2585 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2586
2587         * dfp.c (decimal_real_arithmetic): Change second argument type
2588         from int to enum tree_code. Do not always return true, but now
2589         return result of any call to decimal_do helper functions.
2590         * dfp.h (decimal_real_arithmetic): Update prototype.
2591
2592 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2593
2594         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2595
2596 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2597
2598         PR tree-opt/25251
2599         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2600         forced labels.
2601
2602 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2603
2604         * tree-vrp.c (cfg_loops): Removed.
2605         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2606         Use current_loops instead of cfg_loops.  Pass flags to
2607         loop_optimizer_init.
2608         * cfgloopmanip.c (fix_loop_structure): Update only available
2609         information.
2610         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2611         loop_optimizer_init.
2612         * modulo-sched.c (build_loops_structure): Removed.
2613         (sms_schedule): Use loop_optimizer_init.
2614         * loop-init.c (loop_optimizer_init): Use flags to determine
2615         which properties of loops to prepare.
2616         (rtl_loop_init): Pass flags to loop_optimizer_init.
2617         * tree-ssa-sink.c (execute_sink_code): Ditto.
2618         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2619         * tree-ssa-pre.c (init_pre): Ditto.
2620         * cfgloop.h (LOOPS_NORMAL): New.
2621         (loop_optimizer_init): Declaration changed.
2622
2623 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2624
2625         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2626         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2627         pa/t-pa.
2628         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2629         pa/t-pa.
2630         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2631         pa/x-ada.
2632         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2633         * pa/t-pa64: Delete quadlib.c rule.
2634         * pa/x-ada: Revert last change.
2635         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2636
2637 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2638
2639         PR rtl-optimization/26087
2640         * rtlanal.c (canonicalize_condition): Do not cross basic block
2641         boundaries.
2642
2643 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2644
2645         PR debug/24444
2646         * config/ia64/ia64.c: Include debug.h.
2647         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2648         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2649         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2650         (process_epilogue, process_set, process_for_unwind_directive):
2651         Output unwind info only if requested.  Add CFA info if requested.
2652         Add new arguments as needed.  Adjust callers.
2653         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2654         incorrect default.
2655         (DWARF2_FRAME_INFO): Define to zero.
2656         * config/ia64/unwind-ia64.c: Remove code that compensated for
2657         the CFA offset error fixed above.
2658         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2659         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2660         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2661         -funwind-tables and -fexceptions to enable frame info.
2662         (dwarf2out_frame_init): Define initial CFA even if
2663         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2664         DWARF2_UNWIND_INFO is nonzero, not just defined.
2665         (dwarf2out_frame_finish): Output non-EH call frame info only
2666         if DWARF2_FRAME_INFO is nonzero.
2667         (convert_cfa_to_loc_list,
2668         compute_frame_pointer_to_cfa_displacement): Define even if
2669         unwind info is not supported.
2670         (gen_subprogram_die): Use the above unconditionally.  Remove
2671         legacy alternate code.
2672         * toplev.c (compile_file): Compile in call to
2673         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2674         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2675
2676 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2677             Jakub Jelinek  <jakub@redhat.com>
2678
2679         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2680         IBM extended float format long double as "g" on powerpc*-linux.
2681
2682 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2683
2684         PR target/25926
2685         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2686         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2687
2688 2006-02-03  Jason Merrill  <jason@redhat.com>
2689
2690         PR c++/25979
2691         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2692
2693         PR middle-end/25977
2694         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2695         on the return slot if it's an NRV.
2696
2697 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2698
2699         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2700         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2701         rewrite_use): Do not handle USE_OUTER.
2702         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2703         add_iv_outer_candidates, may_replace_final_value,
2704         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2705         (find_interesting_uses_op): Functionality of
2706         find_interesting_uses_outer_or_nonlin moved here.
2707         (find_interesting_uses_outside): Use find_interesting_uses_op.
2708
2709 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2710
2711         PR target/25960
2712         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2713
2714 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2715             Ulrich Weigand  <uweigand@de.ibm.com>
2716
2717         PR target/25864
2718         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2719         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2720         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2721         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2722         and dxr fields.
2723         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2724         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2725         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2726         Define secondary reloads for TFmode moves.
2727         (constant_modes): Add TFmode.
2728         (NR_C_MODES): Set to 8.
2729         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2730         builtin define.
2731         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2732         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2733         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2734         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2735         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2736         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2737         (FPR mode macro): Add TFmode.
2738         (DSF mode macro): New.
2739         (<de>, <dee> mode attributes): Removed.
2740         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2741         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2742         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2743         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2744         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2745         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2746         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2747         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2748         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2749         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2750         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2751         "*negabs<mode>2", "sqrt<mode>2"):
2752         Changed <de> to <xde>. R constraint replaced by <Rf>.
2753         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2754         <Rf>.
2755         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2756         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2757         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2758         splitters.
2759         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2760         "extenddftf2", "extendsftf2"): New expanders.
2761         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2762         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2763         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2764         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2765         New options.
2766         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2767         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2768         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2769         __floatditf): Add a GCC_4.1.0 symbol version tag.
2770         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2771         the new options.
2772
2773 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2774
2775         PR target/25377
2776         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2777         Use targetm.binds_local_p instead of TREE_PUBLIC.
2778
2779 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2780
2781         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2782         on INTEGER_TYPEs to indicate that it denotes a character type.
2783         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2784         signed_char_type_node, unsigned_char_type_node and char_type_node.
2785         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2786         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2787         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2788
2789 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2790             Daniel Berlin  <dberlin@dberlin.org>
2791
2792         * tree-tailcall.c (arg_needs_copy_p): New function.
2793         (eliminate_tail_call): Use arg_needs_copy_p.
2794         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2795         (add_virtual_phis): New function.
2796
2797 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2798
2799         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2800         #ignore instead of #scratch for %g7 .register directive.
2801
2802 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2803
2804         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2805         object files.
2806
2807 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2808
2809         * flow.c (calculate_global_regs_live): Assert that there aren't any
2810         EDGE_FAKE edges.
2811
2812 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2813
2814         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2815         what its name says.
2816         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2817         bsi_after_labels iterator.
2818         * tree-if-conv.c (find_phi_replacement_condition,
2819         replace_phi_with_cond_modify_expr): Likewise.
2820         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2821         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2822
2823 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2824
2825         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2826
2827 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2828
2829         PR 25990
2830         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2831         array after growing it.
2832
2833 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2834
2835         PR middle-end/24901
2836         * fold-const.c (fold_checksum_tree): Change type of buf.
2837
2838 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2839
2840         * reload.c (push_secondary_reload): Initialize t_icode.
2841
2842 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2843
2844         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2845         -msoft-float -mlong-double-128 only issue a warning, but don't
2846         swich to DFmode long double.
2847
2848 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2849
2850         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2851         has a constant equivalent, iterate over equivalents for arg0,
2852         calling simplify_relational_operation and if there's a result
2853         cheaper than X, apply fold_rtx and return the result.
2854
2855 2006-02-01  Jan Hubicka  <jh@suse.cz>
2856
2857         * opts.c (no_unit_at_a_time_default): New global variable.
2858         (decode_options): Use it.
2859         * opts.h (no_unit_at_a_time_default): Declare.
2860
2861 2006-02-01  Paul Brook  <paul@codesourcery.com>
2862
2863         * function.c (assign_parm_setup_reg): Use function argument promotion
2864         rules.
2865         * expr.c (expand_expr_real_1): Use function argument promotion rules
2866         for PARM_DECLs.
2867
2868 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2869
2870         * gcc.c (process_command): Change j to 'unsigned int'.
2871
2872 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2873
2874         PR middle-end/26001
2875         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
2876         Use the corrected index for the character
2877         out of the string constant.
2878
2879 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2880
2881         * mode-switching.c (optimize_mode_switching): Fix size
2882         allocated for bb_info[n_entities].
2883
2884 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2885
2886         * gcc.c (main): Correct type that is allocated for
2887         explicit_link_files.
2888
2889 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
2890
2891         * config/s390/s390.c (init_alignment_context): Set
2892         ALIAS_SET_MEMORY_BARRIER on the MEM.
2893         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
2894
2895 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
2896
2897         PR middle-end/25933
2898         * loop-unroll.c (unroll_loop_runtime_iterations): Free
2899         dom_bbs pointer.
2900         * tree-ssa-live.c (type_var_init): Allocate bitmap after
2901         call to tpa_init.
2902
2903 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
2904
2905         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
2906         * regrename.c: Ditto.
2907         * tree-ssa-loop-im.c: Ditto.
2908         * tree-dump.c: Ditto.
2909         * tree-complex.c: Ditto.
2910         * genrecog.c: Ditto.
2911         * tree-ssa-threadupdate.c: Ditto.
2912         * tracer.c: Ditto.
2913         * java/class.c: Ditto.
2914         * java/jcf-parse.c: Ditto.
2915         * java/resource.c: Ditto.
2916         * java/except.c: Ditto.
2917         * java/jvspec.c: Ditto.
2918         * java/jcf-write.c: Ditto.
2919         * java/jcf-path.c: Ditto.
2920         * java/gjavah.c: Ditto.
2921         * java/zextract.c: Ditto.
2922         * java/jcf-io.c: Ditto.
2923         * java/jcf.h: Ditto.
2924         * java/buffer.c: Ditto.
2925         * java/lang.c: Ditto.
2926         * java/parse-scan.y: Ditto.
2927         * java/lex.c: Ditto.
2928         * java/lex.h: Ditto.
2929         * cfgloopmanip.c: Ditto.
2930         * postreload-gcse.c: Ditto.
2931         * tree-ssa-loop-manip.c: Ditto.
2932         * postreload.c: Ditto.
2933         * tree-ssa-loop-ch.c: Ditto.
2934         * loop.c: Ditto.
2935         * ipa-cp.c: Ditto.
2936         * cppspec.c: Ditto.
2937         * diagnostic.c: Ditto.
2938         * final.c: Ditto.
2939         * genoutput.c: Ditto.
2940         * gcc.c: Ditto.
2941         * cfghooks.c: Ditto.
2942         * cfgloopanal.c: Ditto.
2943         * objc/objc-act.c: Ditto.
2944         * gcov.c: Ditto.
2945         * genextract.c: Ditto.
2946         * genautomata.c: Ditto.
2947         * pretty-print.c: Ditto.
2948         * genemit.c: Ditto.
2949         * cgraphunit.c: Ditto.
2950         * flow.c: Ditto.
2951         * df-scan.c: Ditto.
2952         * haifa-sched.c: Ditto.
2953         * dominance.c: Ditto.
2954         * dbxout.c: Ditto.
2955         * tree-ssa-loop-ivopts.c: Ditto.
2956         * df-core.c: Ditto.
2957         * mode-switching.c: Ditto.
2958         * modulo-sched.c: Ditto.
2959         * graph.c: Ditto.
2960         * ipa-pure-const.c: Ditto.
2961         * cse.c: Ditto.
2962         * fix-header.c: Ditto.
2963         * web.c: Ditto.
2964         * tree-stdarg.c: Ditto.
2965         * ipa-utils.c: Ditto.
2966         * loop-init.c: Ditto.
2967         * ipa-inline.c: Ditto.
2968         * cfganal.c: Ditto.
2969         * global.c: Ditto.
2970         * alloc-pool.c: Ditto.
2971         * dwarf2out.c: Ditto.
2972         * opts.c: Ditto.
2973         * genattrtab.c: Ditto.
2974         * tree-ssa-loop-ivcanon.c: Ditto.
2975         * predict.c: Ditto.
2976         * timevar.c: Ditto.
2977         * lcm.c: Ditto.
2978         * fortran/gfortranspec.c: Ditto.
2979         * regmove.c: Ditto.
2980         * local-alloc.c: Ditto.
2981         * langhooks.c: Ditto.
2982         * function.c: Ditto.
2983         * tree-vectorizer.c: Ditto.
2984         * gcse.c: Ditto.
2985         * ipa-type-escape.c: Ditto.
2986         * alias.c: Ditto.
2987         * tree-if-conv.c: Ditto.
2988         * profile.c: Ditto.
2989         * ipa.c: Ditto.
2990         * tree-data-ref.c: Ditto.
2991         * loop-unroll.c: Ditto.
2992         * treelang/treetree.c: Ditto.
2993         * calls.c: Ditto.
2994         * bt-load.c: Ditto.
2995         * ggc-common.c: Ditto.
2996         * except.c: Ditto.
2997         * coverage.c: Ditto.
2998         * cselib.c: Ditto.
2999         * tree-cfgcleanup.c: Ditto.
3000         * tree-ssa-pre.c: Ditto.
3001         * cfgcleanup.c: Ditto.
3002         * loop-invariant.c: Ditto.
3003         * loop-iv.c: Ditto.
3004         * ipa-prop.c: Ditto.
3005         * print-tree.c: Ditto.
3006         * conflict.c: Ditto.
3007         * ggc-page.c: Ditto.
3008         * sched-deps.c: Ditto.
3009         * regclass.c: Ditto.
3010         * tree-object-size.c: Ditto.
3011         * combine.c: Ditto.
3012         * bb-reorder.c: Ditto.
3013         * resource.c: Ditto.
3014         * var-tracking.c: Ditto.
3015         * cfgloop.c: Ditto.
3016         * df-problems.c: Ditto.
3017         * reg-stack.c: Ditto.
3018         * tlink.c: Ditto.
3019         * gccspec.c: Ditto.
3020         * sched-rgn.c: Ditto.
3021         * tree-ssa-structalias.c: Ditto.
3022         * tree-ssa-reassoc.c: Ditto.
3023         * config/darwin-c.c: Ditto.
3024         * config/darwin.c: Ditto.
3025         * config/arm/arm.c: Ditto.
3026         * cfgrtl.c: Ditto.
3027         * collect2.c: Ditto.
3028         * reload1.c: Ditto.
3029
3030 2006-01-31  Nicolas Pitre  <nico@cam.org>
3031
3032         * arm.md (smaxsi3): Make aware of smax_m1.
3033         (smax_m1): New.
3034
3035 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3036
3037         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3038
3039 2006-01-31  Richard Guenther  <rguenther@suse.de>
3040
3041         * doc/invoke.texi (-msselibm): Document.
3042         * target.h (expand_library_builtin): New target hook.
3043         * builtins.c (expand_builtin): Use expand_library_builtin.
3044         (default_expand_library_builtin): New function.
3045         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3046         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3047         (link_gcc_math_spec): Declare.
3048         (static_specs): Add link_gcc_math_spec.
3049         * expr.h (default_expand_library_builtin): Declare.
3050         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3051         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3052         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3053         * config/i386/i386.opt (msselibm): New target option.
3054         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3055         (ix86_init_sse_abi_builtins): New function.
3056         (ix86_expand_library_builtin): Likewise.
3057         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3058         (override_options): Handle error conditions wrt -msselibm.
3059         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3060         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3061         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3062         builtins.
3063
3064 2006-01-31  Richard Guenther  <rguenther@suse.de>
3065         Paolo Bonzini  <bonzini@gnu.org>
3066
3067         * doc/install.texi (--disable-libgcc-math): Document.
3068
3069 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3070
3071         * expr.h (expand_normal): new inline function.
3072         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3073         * dojump.c: use it.
3074         * dwarf2out.c: use it.
3075         * expr.c: use it.
3076         * calls.c: use it.
3077         * expmed.c: use it.
3078         * except.c: use it.
3079         * config/sparc/sparc.c: use it.
3080         * config/i386/i386.c: use it.
3081         * config/rs6000/rs6000.c: use it.
3082         * config/arm/arm.c: use it.
3083         * config/mips/mips.c: use it.
3084         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3085
3086 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3087
3088         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3089         argv to the appropriate type.
3090
3091 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3092
3093         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3094         unreachable code.
3095
3096 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3097
3098         PR target/26018
3099         * config/s390/s390.c (struct machine_function): New flag
3100         decomposed_literal_pool_addresses_ok_p.
3101         (s390_reorg): Set it before final stage of literal pool transforms.
3102         (s390_decompose_address): Only accept displacements of the form
3103         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3104
3105 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3106
3107         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3108         the comparison routine return.
3109
3110 2006-01-30  Michael Matz  <matz@suse.de>
3111
3112         * global.c (find_reg): Only evict for global regs.
3113         Take n_refs into account and dump more info.
3114
3115 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3116
3117         PR target/14798:
3118         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3119         (pragma_trap, pragma_nosave_low_regs): Likewise.
3120         (current_function_anonymous_args): Likewise.
3121         (sh_deferred_function_attributes): New variable.
3122         (sh_deferred_function_attributes_tail): Likewise.
3123         (print_operand): For '@', look up trap_exit attribute.
3124         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3125         handlers, save/restore fpscr, but don't do any other
3126         interrupt-specific saves.
3127         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3128         Fix check for partially saved registers to check for SHmedia.
3129         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3130         (sh_output_function_epilogue): Don't clear any of the removed
3131         variables.
3132         (sh_insert_attributes): Don't check pragma_interrupt.
3133         Insert deferred attributes.  Check that interrupt attribute is
3134         present for other attributes that require its presence.
3135         (sh_attribute_table): Add new attributes trapa_handler and
3136         nosave_low_regs.
3137         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3138         Don't check for pragma_interrupt.  Don't store argument.
3139         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3140         (sh_deferred_function_attributes): Declare.
3141         (sh_deferred_function_attributes_tail): Likewise.
3142         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3143         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3144         (*return_i): Don't use when trap_exit attribute is in effect.
3145         (*return_trapa): New insn pattern.
3146         * sh-c.c: New file.
3147         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3148         setting c_target_objs and cxx_target_objs.
3149         * t-sh: Add rule for sh-c.o.
3150
3151 2006-01-30  Richard Guenther  <rguenther@suse.de>
3152
3153         PR c++/23372
3154         * gimplify.c (gimplify_target_expr): Handle easy cases
3155         without creating a temporary.
3156
3157 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3158
3159         * vec.h (safe_grow): Remove duplicated line.
3160
3161 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3162
3163         PR 25874
3164         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3165         (expand_omp): ... here.
3166         (expand_omp_parallel): Only remove barriers for combined
3167         parallel+workshare constructs.
3168
3169 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3170
3171         Revert
3172
3173         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3174         * tree.c (build_qualified_type): Chain the new type to the original
3175         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3176         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3177         (build_pointer_type_for_mode): Only return unqualified types.
3178         (build_reference_type_for_mode): Likewise.
3179
3180 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3181
3182         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3183         * Makefile.in (CXX_COMPAT_WARN): Define.
3184         * configure: Regenerate.
3185
3186 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3187
3188         PR tree-opt/25911
3189         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3190         to an if check.
3191
3192 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3193
3194         * toplev.c: Fix thinko.
3195
3196 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3197             Marcin Dalecki  <martin@dalecki.de>
3198
3199         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3200         (push_srcloc): Use XNEW.
3201         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3202
3203 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3204
3205         * df-core.c (df_set_blocks): Deleted all variable.
3206
3207 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3208
3209         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3210         cgraph_output_pending_asms.
3211
3212 2006-01-28  Zack Weinberg  <zackw@panix.com>
3213
3214         * c.opt: Add -W(no-)overlength-strings.
3215         * doc/invoke.texi: Document it.
3216         * c-opts.c (c_common_handle_option): -pedantic implies
3217         -Woverlength-strings, if not explicitly disabled already.
3218         (c_common_post_options): -Woverlength-strings defaults to off, and
3219         is always off for C++.
3220         * c-common.c (fix_string_type): Issue warning about strings longer
3221         than is portable only if warn_overlength_strings.  Rearrange code
3222         a little for clarity.
3223         * configure.in: Check for -Wno-overlength-strings as well before
3224         enabling -pedantic in stage 1.
3225         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3226         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3227
3228         * genconditions.c (write_header, write_one_condition)
3229         (write_conditions, write_writer): Consolidate very long strings
3230         that were broken up to fit in C89 portable limit.  Don't use
3231         printf when fputs will do.
3232
3233 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3234
3235         * combine.c (simplify_comparison <AND>): Check
3236         TRULY_NOOP_TRUNCATION before start using a subreg.
3237
3238         * config/mips/mips.md (*branch_zero<mode>,
3239         *branch_zero<mode>_inverted, *branch_equality<mode>,
3240         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3241         Remove mode check from comparisons.
3242
3243 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3244
3245         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3246
3247 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3248
3249         * expmed.c (const_mult_add_overflow_p): Remove.
3250         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3251
3252         * recog.c (validate_replace_rtx_subexp): Remove.
3253         * recog.h: Remove the prototype for
3254         validate_replace_rtx_subexp.
3255
3256         * integrate.h: Remove the prototype for
3257         copy_decl_for_inlining.
3258         * rtl.h: Remove the prototype for mark_constant_function.
3259         * tree-vectorizer.h: Remove the prototype for
3260         vect_strip_conversion.
3261
3262         * modulo-sched.c (create_partial_schedule,
3263         free_partial_schedule, reset_partial_schedule): Make them
3264         static.
3265
3266         * hooks.c (hook_bool_rtx_int_false): Remove.
3267         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3268
3269 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3270
3271         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3272         and -mlong-double-128 are incompatible.
3273         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3274         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3275         (TARGET_LIBGCC2_CFLAGS): Define.
3276         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3277         (TARGET_LIBGCC2_CFLAGS): Same.
3278         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3279
3280 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3281
3282         PR c/19606.
3283         * c-typeck.c (build_binary_op): Perform implicit casts of
3284         operands before shortening them.
3285
3286         * cfgloopmanip.c (split_loop_bb): Remove.
3287         * cfgloop.h: Remove the prototype for split_loop_bb.
3288
3289         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3290         * cfgloop.h: Remove the prototype for
3291         flow_loop_outside_edge_p.
3292
3293         * emit-rtl.c (init_virtual_regs): Make it static.
3294         * function.h: Remove the prototype for init_virtual_regs.
3295
3296         * recog.c (peephole2_optimize): Make it static.
3297         * recog.h: Remove the prototype for peephole2_optimize.
3298
3299 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3300
3301         * df-scan.c (df_record_entry_block_defs): Check if
3302         INCOMING_RETURN_ADDR_RTX is defined.
3303
3304 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3305             Kenneth Zadeck <zadeck@naturalbridge.com>
3306
3307         PR rtl-optimization/24762
3308         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3309         * targhooks.c (hook_void_bitmap): New hook prototype.
3310         * targhoohs.h (hook_void_bitmap): Ditto.
3311         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3312         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3313         * target.h (live_on_entry): New function pointer.
3314         * df-scan.c (df_all_hard_regs): Removed.
3315         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3316         (df_scan_free_internal): Added df->entry_block_defs.
3317         (df_scan_alloc): Ditto.
3318         (df_scan_dump): Ditto.
3319         (df_uses_record): Plumbed flag field properly thru calls.
3320         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3321         This part fixes PR24762.
3322         (df_bb_refs_record): Added code to make the frame and arg
3323         pointers live in EH blocks.
3324         (df_refs_record): Added call to df_record_entry_block_defs.
3325         (df_record_entry_block_defs): New function.
3326         * df-core.c: Added comments to describe new artifical defs.
3327         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3328         (entry_block_defs): New field in struct df.
3329         (df_all_hard_regs): Deleted.
3330         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3331         * df-problems.c (df_ru_bb_local_compute_process_def):
3332         Added code to handle artifical defs in the entry to a function.
3333         (df_ru_bb_local_compute): Ditto.
3334         (df_rd_bb_local_compute_process_def):  Ditto.
3335         (df_rd_bb_local_compute): Ditto.
3336         (df_lr_bb_local_compute): Ditto.
3337         (df_ur_bb_local_compute): Ditto.
3338         (df_urec_bb_local_compute):  Ditto.
3339         (df_chain_create_bb):  Ditto.
3340         (df_ur_local_finalize): Removed entry.
3341         (df_urec_init): Ditto.
3342         (df_urec_local_finalize): Ditto.
3343         (df_ri_bb_compute): Added detection of last use of pseudos.
3344         * Makefile.in (df-scan.o): Updated dependencies.
3345         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3346         * config/mips/mips.c (mips_set_live_on_entry): Added.
3347         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3348         for target hook.
3349         * dce.c (marked_insn_p): Added code to handle artifical defs.
3350
3351 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3352
3353         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3354         intrinsic.
3355         (_mm_cvtsi128_si64): Likewise.
3356         (_mm_cvtsd_si64): Likewise.
3357         (_mm_cvttsd_si64): Likewise.
3358         (_mm_cvtsi64_sd): Likewise.
3359         (_mm_cvtsi64_si128): Likewise.
3360         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3361         (_mm_cvtsi64_m64): Likewise.
3362         (_m_to_int64): Likewise.
3363         (_mm_cvtm64_si64): Likewise.
3364         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3365         (_mm_cvttss_si64): Likewise.
3366         (_mm_cvtsi64_ss): Likewise.
3367         (_mm_cvtss_f32): Likewise.
3368
3369 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3370
3371         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3372         for pragma redefine_extname.
3373
3374 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3375
3376         PR target/25864
3377         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3378         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3379         -mno-minimal-toc to previous content.
3380         (bispecs): Remove goal.
3381         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3382         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3383         compatibility aliases on powerpc-*-*gnu*.
3384         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3385         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3386         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3387         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3388         (ldblspecs): New goal.
3389         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3390         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3391         _df_to_tf.
3392         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3393         L_sf_to_tf or L_df_to_tf is defined.
3394
3395 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3396             Alan Modra  <amodra@bigpond.net.au>
3397
3398         PR target/25864
3399         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3400         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3401         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3402         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3403         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3404         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3405         (rs6000_override_options): Initialize rs6000_ieeequad.
3406         Initialize TFmode format to ibm_extended_format if not
3407         TARGET_IEEEQUAD.
3408         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3409         ieeelongdouble.
3410         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3411         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3412         (function_arg_advance): IBM long double passed in two FPRs, not
3413         split.
3414         (function_arg): IBM long double passed in FPRs.
3415         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3416         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3417         Only multireg GPR aligned.
3418         (rs6000_init_libfuncs): Enable IBM long double functions if not
3419         IEEEQUAD.
3420         (rs6000_generate_compare): Use IBM long double compare if not
3421         TARGET_IEEEQUAD.
3422         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3423         (TARGET_IEEEQUAD): Define.
3424         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3425         not TARGET_IEEEQUAD.
3426         * config/rs6000/rs6000.md: Enable TFmode patterns if
3427         !TARGET_IEEEQUAD.
3428         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3429         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3430         and -mlong-double-128 are incompatible.
3431         * doc/invoke.texi (-mabi): Collect options together.  Add
3432         ibmlongdouble and ieeelongdouble.
3433
3434 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3435
3436         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3437         opaque type.
3438         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3439         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3440         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3441         * rtl.h (rtunion_def): Remove rt_ptr.
3442         (X0PTR): Delete.
3443         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3444         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3445         * config/i386/winnt.c (i386_pe_mark_dllexport)
3446         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3447
3448 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3449
3450         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3451
3452 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3453
3454         PR other/24829
3455         PR target/24831
3456         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3457         pthread_key_delete.  From John David Anglin.  gthrw-ify
3458         pthread_getunique_np only if it it's not a macro.  Delete
3459         UNUSED macro.
3460         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3461         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3462         __gthread_objc_condition_signal, __gthread_key_delete): Add
3463         "__attribute__ ((__unused__))" to unused arguments.
3464         (__gthread_recursive_mutex_init_function): Add missing return.
3465         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3466         gthr-posix95.h: Use macro-based approach for name redirection
3467         on targets missing weakref.
3468
3469 2006-01-26  Zack Weinberg  <zackw@panix.com>
3470
3471         * genconditions.c (write_header): In generated code, #ifdef out
3472         all includes and fake declarations, except includes of bconfig.h
3473         and system.h, unless GCC_VERSION >= 3001.  Do not include
3474         gensupport.h in any case.
3475         (write_conditions): Generate a definition of struct c_test.  Add
3476         a comment to the generated #endif.
3477         (write_one_condition): Escape backslashes in string too.
3478         (write_writer): Generated code must escape backslashes and quote
3479         marks (but not newlines) in the strings it writes.
3480         * Makefile.in (build/gencondmd.o): Update dependencies.
3481
3482 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3483
3484         PR target/25961
3485         * Makefile.in (insn-automata.o): Add header file dependencies.
3486         * genautomata.c: Add includes.
3487
3488 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3489
3490         PR target/25961
3491         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3492
3493 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3494
3495         * configure.ac: Expect target tools paths to be passed from the toplevel
3496         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3497         AS_SET_VAR_IF.
3498         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3499
3500 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3501
3502         PR c/25892
3503         * c.opt (Wpointer-sign): Init to -1.
3504         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3505         OPT_pedantic, to 0 otherwise.
3506         * doc/invoke.texi: Update.
3507
3508 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3509
3510         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3511         constants provided by 80387 instructions in the destination mode.
3512
3513 2006-01-26  Richard Guenther  <rguenther@suse.de>
3514             Andrew Pinski  <pinskia@physics.uc.edu>
3515
3516         PR tree-opt/21470
3517         partial PR tree-opt/17064
3518         * tree-ssa-structalias.c (intra_create_variable_infos):
3519         Create heap variables for incoming parameters if
3520         flag_argument_noalias > 1.
3521         (find_what_p_points_to): Look through default defs of
3522         parameter decls.
3523
3524 2006-01-26  Jeff Law  <law@redhat.com>
3525
3526         PR ada/25900
3527         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3528         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3529         within the VR_RANGE, use the VR_RANGE as the result, not the
3530         VR_ANTI_RANGE.
3531         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3532         bounds for the type.
3533
3534 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3535
3536         * tree-ssa-alias.c (maybe_create_global_var): Change
3537         subvar walking to an assertion that we don't have subvar'd variables.
3538
3539 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3540
3541         PR C/25861
3542         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3543         Use a new variable, inner.  PARM_DECLs are always non-weak.
3544
3545 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3546
3547         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3548         --disable-checking.
3549
3550 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3551
3552         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3553
3554 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3555
3556         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3557         (smax_insn, smin_insn, smax_0, smin_0): New.
3558
3559 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3560
3561         PR target/25947
3562         * config/cris/cris.c (cris_order_for_addsi3): New function.
3563         * config/cris/cris-protos.h: Prototype it.
3564         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3565         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3566         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3567         (split for "op.S1 [rx=rx+i],ry (swapped)")
3568         (split for "op(s|u).S1 [rx=rx+i],ry")
3569         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3570         Apply cris_order_for_addsi3 when generating addsi3 insns.
3571
3572 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3573
3574         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3575         (TREE_BLOCK): Add call to EXPR_CHECK.
3576
3577 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3578
3579         PR 25886
3580         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
3581         * tree-pretty-print.c (dump_omp_clause): Extract from ...
3582         (dump_omp_clauses): ... here.
3583         (dump_generic_node): Handle OMP_CLAUSE.
3584         * tree.c (omp_clause_num_ops): New.
3585         (omp_clause_code_name): New.
3586         (tree_code_size): Handle OMP_CLAUSE.
3587         (tree_size): Likewise.
3588         (make_node): Document handling of OMP_CLAUSE.
3589         (tree_node_structure): Handle OMP_CLAUSE.
3590         (omp_clause_check_failed): New.
3591         (omp_clause_range_check_failed): New.
3592         (omp_clause_operand_check_failed): New.
3593         (build_omp_clause): New.
3594         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
3595         * tree.h (enum omp_clause_code): Declare.
3596         (OMP_CLAUSE_SUBCODE_CHECK): Define.
3597         (OMP_CLAUSE_RANGE_CHECK): Define.
3598         (OMP_CLAUSE_ELT_CHECK): Define.
3599         (omp_clause_check_failed): Declare.
3600         (omp_clause_operand_check_failed): Declare.
3601         (omp_clause_range_check_failed): Declare.
3602         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
3603         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
3604         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
3605         (OMP_CLAUSE_LASTPRIVATE): Likewise.
3606         (OMP_CLAUSE_IF_EXPR): Likewise.
3607         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
3608         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
3609         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
3610         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
3611         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
3612         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
3613         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
3614         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
3615         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
3616         (OMP_CLAUSE_CODE): Define.
3617         (OMP_CLAUSE_SET_CODE): Define.
3618         (OMP_CLAUSE_CODE): Define.
3619         (OMP_CLAUSE_OPERAND): Define.
3620         (struct tree_omp_clause): Declare.
3621         (union tree_node): Add field 'omp_clause'.
3622         * treestruct.def (TS_OMP_CLAUSE): Define.
3623         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
3624         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
3625         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
3626         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
3627         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
3628         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
3629         (OMP_CLAUSE): Define.
3630         * print-tree.c (print_node): Handle OMP_CLAUSE.
3631         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
3632         * c-typeck.c: Likewise.
3633         * gimplify.c: Likewise.
3634         * c-omp.c: Likewise.
3635         * tree-nested.c: Likewise.
3636         * tree-inline.c: Likewise.
3637         * c-parser.c: Likewise.
3638         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
3639         clauses.
3640
3641 2006-01-25  Roger Sayle  <roger@eyesopen.com>
3642
3643         PR rtl-optimization/25703
3644         * combine.c (try_combine): Handle zero_extract and strict_low_part
3645         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
3646
3647 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
3648
3649         * global.c: Fix comment typos.
3650
3651 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
3652
3653         PR target/25758
3654         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
3655         Use output_addr_const instead of assemble_name.
3656
3657 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
3658
3659         * Makefile.in (sched-vis.o): Update dependencies.
3660         * haifa-sched.c (sched_finish): Clear current_sched_info.
3661         * cfg.c (dump_bb_info): New, split from dump_flow_info.
3662         (dump_flow_info): Call it.
3663         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
3664         a slim RTL dump.
3665         * basic-block.h (dump_bb_info): Declare.
3666         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
3667         option, and apply options only for dump files whose TDF_RTL,
3668         TDF_TREE, or TDF_IPA bits match.
3669         * rtl.h: Declare new functions exported from sched-vis.c.
3670         * sched-vis.c: Enable also if scheduling is not used.
3671         (print_value): Print the mode of registers if not inside scheduling.
3672         (print_insn): Make it work outside the scheduler.  Beautify the output
3673         a bit.
3674         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
3675
3676 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3677
3678         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
3679         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
3680         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
3681         depending on the value of CONSTANT_POOL_ADDRESS_P.
3682         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
3683         SYMBOL_REF_DECL.
3684         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
3685         rather than SYMBOL_REF_DECL.
3686         (rtx_constant_pool): Remove const_rtx_sym_htab.
3687         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
3688         (init_varasm_status): Don't initialize const_rtx_sym_htab.
3689         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
3690         Remove handling of const_rtx_sym_htab.
3691         (find_pool_constant): Delete.
3692         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
3693         rather than find_pool_constant.
3694         (get_pool_constant_for_function): Delete.
3695         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
3696         find_pool_constant.
3697         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
3698         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
3699         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
3700         (SYMBOL_REF_CONSTANT): New macro.
3701         (get_pool_constant_for_function): Delete.
3702         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
3703         rather than SYMBOL_REF_DECL.
3704         (i386_pe_mark_dllimport): Likewise.
3705         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
3706         rather than SYMBOL_REF_DECL.
3707         * config/darwin.c (machopic_indirect_data_reference): Likewise.
3708         (machopic_indirect_call_target): Likewise.
3709
3710 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
3711
3712         * flow.c (delete_noop_moves): Add missing EOL to dump message.
3713
3714 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3715
3716         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
3717
3718 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3719
3720         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
3721
3722 2006-01-24  David Daney  <ddaney@avtrex.com>
3723
3724         PR java/25816
3725         * configure.ac (enable_tls): New enable option.
3726         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
3727         * configure: Regenerate.
3728         * doc/install.texi (--enable-tls): Document new option.
3729         (--disable-tls): Ditto.
3730
3731 2006-01-24  Richard Henderson  <rth@redehat.com>
3732
3733         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
3734         * alias.c (true_dependence): Respect it.
3735         (canon_true_dependence, write_dependence_p): Likewise.
3736         * builtins.c (get_builtin_sync_mem): Set it.
3737
3738 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
3739
3740         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
3741         efficient way.
3742
3743 2006-01-24  DJ Delorie  <dj@redhat.com>
3744
3745         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
3746         for storing constants in single-bit bitfields.
3747
3748 2006-01-25  Ben Elliston  <bje@au.ibm.com>
3749
3750         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
3751
3752 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
3753
3754         PR tree-opt/25860
3755         * tree-ssa-pre.c (phi_translate): Return NULL
3756         for AGGREGATE_TYPE's.
3757
3758 2006-01-24  Zack Weinberg  <zackw@panix.com>
3759
3760         * genautomata.c (process_state_for_insn_equiv_partition):
3761         Use xcalloc for insn_arcs_array.
3762         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
3763         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
3764
3765 2006-01-24  Richard Henderson  <rth@redhat.com>
3766
3767         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
3768         update all callers.
3769
3770 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
3771
3772         PR rtl-optimization/25890
3773         PR rtl-optimization/25905
3774         * combine.c (expand_compound_operation, expand_field_assignment):
3775         Fail if the bitfield's final position is out of bounds.
3776
3777 2006-01-24  Ian Lance Taylor  <ian@airs.com>
3778
3779         PR middle-end/25930
3780         * cgraphunit.c (cgraph_output_in_order): Don't clear
3781         cgraph_asm_nodes until after asm strings have been output.
3782
3783 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
3784
3785         * fix-header.c (read_scan_file): Add new parameter imultilib when
3786         calling register_include_chains.
3787
3788 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
3789
3790         * omp-low.c: Update documentation.
3791
3792 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3793             Daniel Berlin  <dberlin@dberlin.org>
3794
3795         PR tree-opt/25315
3796         PR tree-opt/25857
3797         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
3798         return from the function.
3799
3800 2006-01-22  Zack Weinberg  <zackw@panix.com>
3801
3802         * rtl.def (match_code): Add second argument.
3803         * genpreds.c (write_extract_subexp): New function.
3804         (write_match_code): Add path argument.  Use write_extract_subexp.
3805         (write_predicate_expr): Pass path to write_match_code.
3806         (mark_mode_tests): MATCH_CODE applied to a subexpression does
3807         not perform a mode test.
3808         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
3809         a subexpression does not constrain the top-level code set.
3810         * read-rtl.c (read_rtx_variadic): New function.
3811         (read_rtx_1): Use it; allow AND and IOR to be variadic.
3812         * doc/md.texi: Document new notation.
3813         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
3814         (cmpsi_operand): ... here, using new notation.
3815
3816 2006-01-22  Zack Weinberg  <zackw@panix.com>
3817
3818         * varray.c: Remove GENERATOR_FILE #ifdefs.
3819
3820 2006-01-22  Zack Weinberg  <zackw@panix.com>
3821
3822         * genautomata.c (output_reserved_units_table): Emit nothing if
3823         description->query_units_num is zero.  Remove extra blank line.
3824         (output_cpu_unit_reservation_p): Short circuit
3825         if description->query_units_num is zero.
3826
3827 2006-01-22  Zack Weinberg  <zackw@panix.com>
3828
3829         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
3830         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
3831         nor any of the random handful of variables that used to be necessary
3832         when this program was linked with rtlanal.o.  Prune set of forward
3833         function declarations.
3834         (struct attr_desc): Remove static_p field.
3835         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
3836         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
3837         (attr_string): Do not read the character one past the length of
3838         the string.
3839         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
3840         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
3841         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
3842         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
3843         (make_automaton_attrs): New.
3844         (main): Do not call into genautomata.  Call local gen_bypass
3845         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
3846         Remove special case for insn_alts.
3847         * genautomata.c: Include gensupport.h; not genattrtab.h nor
3848         varray.h (leftover from previous change).  Prune set of forward
3849         function declarations.  Remove state_alts fields from all
3850         structures.  Remove state_alts_table from struct automaton.
3851         Make everything except main static.  Do not maintain num_dfa_decls.
3852         Do not maintain state_alts fields of various structures.
3853         (process_decls): Don't validate condexp for dm_insn_reserv decls.
3854         (add_arc): Remove state_alts argument.  All callers updated.
3855         (output_reserved_units_table): Emit #ifdef here...
3856         (output_tables): ...not here.  Don't generate state_alts tables.
3857         (expand_automata): Don't generate attributes.
3858         (write_automata): Don't generate state_alts functions.
3859         (main): New function.
3860         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
3861         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
3862         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
3863         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
3864         (BYPASS_P_FUNC_NAME, output_state_alts_table)
3865         (output_automata_list_state_alts_code, output_internal_state_alts_func)
3866         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
3867         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
3868         Delete.
3869         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
3870         * genattrtab.h: Delete file.
3871         * Makefile.in (OBJS-common): Add insn-automata.o.
3872         (insn-automata.o): New rule.
3873         (simple_generated_c): Add insn-automata.c.
3874         (build/genattrtab.o, build/genautomata.o): Update dependencies.
3875         (genprogmd): Add automata.
3876         (build/genattrtab): Needs no extra objects nor libraries.
3877         (build/genautomata): Needs build/vec.o and -lm.
3878
3879 2006-01-22  Zack Weinberg  <zackw@panix.com>
3880
3881         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
3882         (output_dfa_max_issue_rate, locked_states_num): Delete.
3883         (struct automaton): Add locked_states field.
3884         (output_dead_lock_vect): Save number of locked states in
3885         automaton->locked_states.  If it is zero, don't print anything.
3886         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
3887         (output_internal_dead_lock_func): Only test the dead_lock_vect
3888         for automata that have locked states.
3889         (output_statistics): Always print the number of locked states for
3890         each automaton.  Calculate total number of locked states here.
3891         (write_automata): Don't call output_dfa_max_issue_rate.
3892         * genattrtab.c: Define length_unit_log as a const variable.
3893         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
3894         max_insn_queue_index const.
3895         * final.c (length_unit_log): Declare const.
3896         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
3897
3898 2006-01-22  Zack Weinberg  <zackw@panix.com>
3899
3900         * genautomata.c:  Include vec.h, not varray.h.
3901         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
3902         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
3903         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
3904         VEC_* macros operating on appropriately typed vectors, or to
3905         malloced arrays when the size is known in advance.  Const-ify
3906         many char* variables and function arguments.  No functional changes.
3907         * Makefile.in (build/varray.o): Delete rule.
3908         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
3909         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
3910
3911 2006-01-22  Zack Weinberg  <zackw@panix.com>
3912
3913         * gensupport.c: Define get_insn_name and record_insn_name here.
3914         (read_md_rtx): Call record_insn_name as appropriate.
3915         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
3916         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
3917         * genpreds.c, genrecog.c: Don't define get_insn_name nor
3918         record_insn_name.
3919         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
3920         (BUILD_VARRAY): Delete.
3921         (genprognormal): Rename genprogmd.  Fold in all programs from
3922         genprognoprint; also attrtab.
3923         (build/genattrtab): Just mention genautomata.o and varray.o.
3924         Reorganize a bit, add comments to make the categories clearer.
3925
3926 2006-01-22  Zack Weinberg  <zackw@panix.com>
3927
3928         * genconditions.c (condition_table, add_condition): Delete.
3929         (write_conditions): Don't emit n_insn_conditions nor
3930         insn_elision_unavailable.  Issue the gcc version #ifdef here,
3931         inside the table, with no #else clause ...
3932         (write_header): ...not here.
3933         (write_writer): New function.
3934         (main): Don't initialize condition_table.  Use add_c_test.
3935         Call write_writer.
3936         * gensupport.c (init_md_reader_args_cb): Handle multiple input
3937         files on the command line.
3938         (maybe_eval_c_test): Don't check insn_elision_unavailable.
3939         Return -1 if there is no entry in the table, don't abort.
3940         (add_c_test, traverse_c_tests): New functions.
3941         * gensupport.h (insn_elision_unavailable, insn_conditions)
3942         (n_insn_conditions): Delete declarations.
3943         (add_c_test, traverse_c_tests): Declare.
3944         * read-rtl.c: Include gensupport.h.
3945         (read_conditions): New function.
3946         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
3947         (read_rtx_1): If we get EOF when we were looking for an initial
3948         open paren, return 0.  Call read_conditions when appropriate.
3949         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
3950         dummy-conditions.o.  Eliminate references to insn-conditions.o,
3951         or change them to build/gencondmd.o, as appropriate.  Remove
3952         insn-constants.h from $(simple_generated_h) and insn-conditions.c
3953         from $(simple_generated_c).  For all files remaining in those
3954         two lists, add insn-conditions.md to the generator command line.
3955         Give insn-constants.h/s-constants their own rules.  Add rules
3956         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
3957         (build/read-rtl.o): Depend on gensupport.h.
3958         (genprognormal): Include preds.
3959         (genprogearly): Rename genprognoprint; only difference is now that
3960         they don't link with $(BUILD_PRINT).
3961         * dummy-conditions.c: Delete.
3962
3963 2006-01-22  Zack Weinberg  <zackw@panix.com>
3964
3965         * genextract.c: Don't include insn-config.h.  Do include vec.h.
3966         Declare vectors of int, char, and locstr.
3967         (locstr): New typedef.
3968         (struct extraction): Make all array fields into bare pointers.
3969         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
3970         (insn_code_number): Delete.
3971         (accum_extract): New struct.
3972         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
3973         (gen_insn): Take insn_code_number as an argument.  Use an
3974         accum_extract structure instead of loading data directly into
3975         a struct extraction, and having to know how big it might get.
3976         (walk_rtx): Operate entirely on an accum_extract structure.
3977         (print_path): Avoid unnecessary use of printf.
3978         (print_header): New function, split out of main.  Distinguish
3979         more carefully between an unrecognizable insn and an insn that
3980         has the code number of a define_expand.
3981         (main): Pass insn_code_number to gen_insn.  Call print_header
3982         only after parsing.  Avoid unnecessary use of printf.
3983         * Makefile.in (build/vec.o): New rule.
3984         (build/genextract): Depend on build/vec.o.
3985         (build/genextract.o): Don't depend on insn-config.h.
3986
3987 2006-01-22  Zack Weinberg  <zackw@panix.com>
3988
3989         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
3990         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
3991         practical.  Eliminate per-generator-program link rules.
3992
3993 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3994
3995         PR middle-end/24437
3996         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
3997         with a call expr to ...
3998         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
3999
4000 2006-01-23  Richard Guenther  <rguenther@suse.de>
4001
4002         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
4003         before make_edge with conditional EDGE_TRUE_VALUE.
4004
4005 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
4006         Jan Hubicka  <jh@suse.cz>
4007         Richard Guenther  <rguenther@suse.de>
4008
4009         PR rtl-optimization/25654
4010         * cfgexpand.c (aggregate_contains_union_type): New function.
4011         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
4012         for structure variables that contain a union type.
4013
4014 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
4015
4016         * gengtype.c (new_structure): Return the structure.
4017         (create_option): Add an extra "next" argument.
4018         (create_field): New function.
4019         (adjust_field_rtx_def): Use create_option and create_field.
4020         Remove a now-unnecessary call to find_structure.
4021         (adjust_field_tree_def): Likewise.
4022         (note_yacc_type): Remove an unnecessary call to find_structure.
4023         * gengtype.h (new_structure): Return the structure.
4024         (create_option): Add an extra argument.
4025         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
4026         (option): Adjust calls to create_option.
4027
4028 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
4029
4030         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
4031
4032 2006-01-22  Paul Brook  <paul@codesourcery.com>
4033         Peter Barada  <peter@the-baradas.com>
4034
4035         * config/m68k/m68k.md: Add Coldfire FPU support.
4036         Define FP mode macro and associated attributes.
4037         Use it for float mode patterns.
4038         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
4039         (LIBCALL_VALUE): Use m68k_libcall_value.
4040         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
4041         (m68k_function_value): Ditto.
4042         (emit_move_sequence): Ditto.
4043         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
4044         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
4045         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
4046         (MULTILIB_EXCEPTIONS): Ditto.
4047         * config/m68k/m68k.opt: Add mcfv4e.
4048         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
4049         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
4050         (m68k_output_function_prologue): Save ColdFire FPU registers.
4051         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
4052         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
4053         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
4054         ColdFire FPU registers.
4055         (m68k_libcall_value, m68k_function_value): New functions.
4056         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
4057         (LIBCALL_VALUE): Use m68k_libcall_value.
4058         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
4059         (MASK_COLDFIRE): Add MASK_CFV4E.
4060         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
4061         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
4062         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
4063         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
4064         (GO_IF_LEGITIMATE_ADDRESS): Use it.
4065         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
4066         * doc/invoke.tex: Document -mcfv4e on m68k.
4067
4068 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
4069
4070         * doc/contribute.texi: Change CVS to SVN and update the corresponding
4071         URL.
4072
4073 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4074
4075         PR c++/16190
4076         * c-opts.c (c_common_handle_option): Don't include
4077         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
4078         * doc/invoke.texi (C++ Dialect Options): Document that
4079         -Wnon-virtual-dtor is no longer included in -Wall.
4080
4081 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
4082
4083         * gcov.c (print_version), gcov-dump.c (print_version),
4084         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
4085         dates.
4086
4087 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
4088
4089         * df-scan.c (problem_SCAN): Added NULL reset function.
4090         (df_scan_reset_blocks): Added code to call reset block function
4091         (df_bb_refs_delete) Fixed comment.
4092         (df_insn_refs_delete): Made tolerant of deleting non existent info
4093         for dataflow problems that need to be reset.
4094         * df-core.c (df_set_blocks): Ditto.
4095         * df.h (struct df_problem): Added reset_fun.
4096         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
4097         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
4098         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
4099         functions to clear out all references to def-use or use-def chains.
4100
4101 2006-01-21  Ben Elliston  <bje@au.ibm.com>
4102
4103         * varasm.c (assemble_real): Initialise data array.
4104
4105 2006-01-20  Paul Brook  <paul@codesourcery.com>
4106
4107         Merge from csl-arm-branch.
4108         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
4109         * config/arm/arm.md (movdi): Force operands[1] to a register
4110         if we have a non-register source.
4111         (*arm_movdi, *movdf_soft_insn): Require that one of the
4112         operands be a register.
4113         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
4114         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
4115
4116 2006-01-20  DJ Delorie  <dj@redhat.com>
4117
4118         * varasm.c (initialize_constant_valid_p): Allow pointers
4119         initialized from integer constants of lesser precision.
4120         (output_constant): Allow non-int-sized pointer modes to be
4121         initialized from integer constants.
4122
4123 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
4124
4125         PR libstdc++/25524
4126         * cppdefault.h (struct default_include): Add multilib flag.
4127         * cppdefault.c (cpp_include_defaults): Set it.
4128         * c.opt (-imultilib): New option.
4129         * c-opts.c (imultilib): New.
4130         (c_common_handle_option): Handle -imultilib.
4131         (c_common_post_options): Likewise.
4132         * c-incpath.c (add_standard_paths, register_include_chains):
4133         Likewise.
4134         * c-incpath.h (register_include_chains): Add extra parameter.
4135         * gcc.c (do_spec_1): Generate -imultilib option.
4136         (The Specs Language): Update %I description.
4137         (process_command): Update copyright notice.
4138         * doc/cppopts.texi (-imultilib): Document.
4139         * doc/invoke.texi (-imultilib): Include in option summary.
4140         (%I): Update specs documentation.
4141
4142 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4143
4144         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
4145
4146 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
4147
4148         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
4149         label numbers.
4150
4151 2006-01-20  Richard Guenther  <rguenther@suse.de>
4152         Steven Bosscher <stevenb.gcc@gmail.com>
4153
4154         PR rtl-optimization/24626
4155         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
4156         EDGE_TRUE_VALUE if in RTL mode.
4157
4158         Revert
4159         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
4160         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
4161
4162 2006-01-20  Dirk Mueller  <dmueller@suse.com>
4163
4164         PR c++/5520
4165         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
4166         instead of a special NOP marker.
4167         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
4168         NOP marker handling.
4169         * c-common.h (empty_body_warning): Add forward declaration.
4170         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
4171         Now uses IS_EMPTY_STMT() instead of special NOP markers.
4172
4173 2006-01-20  Paul Brook  <paul@codesourcery.com>
4174
4175         * Makefile.in (lang_checks): Keep going if mkdir fails.
4176
4177 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4178
4179         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
4180         be able to clean out basic block when not necessary.
4181         (df_scan_free): Fixed to properly delete information if df is
4182         unused before calling df_finish.
4183         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
4184         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
4185         or comment typos.
4186         (df_bb_refs_delete): New function.
4187         (df_refs_delete): Moved per block code to df_bb_refs_delete.
4188         * df-core.c (df_set_blocks): Added code to properly clean out
4189         unused blocks if they are not part of the blocks to consider.
4190         Added additional null check.
4191         (df_compact_blocks): Added basic block parameter to free_bb_fun to
4192         be able to clean out basic block when not necessary
4193         * df.h (df_free_bb_function): Ditto.
4194         (df_bb_refs_delete): New function.
4195         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
4196         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
4197         basic block parameter to be able to clean out basic block when not
4198         necessary.
4199         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
4200         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
4201         Fixed to properly delete information if df is unused before
4202         calling df_finish.
4203
4204 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4205
4206         PR rtl-optimization/25799
4207         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
4208         Corrected confluence operator to remove bits from op2 before oring
4209         with op1 rather than removing bits from op1.
4210         (df_ru_transfer_function): Corrected test on wrong bitmap which
4211         caused infinite loop.  Both of these problems were introduced in
4212         the dataflow rewrite.
4213
4214 2006-01-19  DJ Delorie  <dj@redhat.com>
4215
4216         * reload1.c (find_reload_regs): Note the details of reload
4217         failures in the dump file.
4218         (spill_failure): Likewise.
4219
4220 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4221
4222         * loop-iv.c: Include df.h and hashtab.h.
4223         (enum iv_grd_result): New enum.
4224         (DF_REF_IV, DF_REF_IV_SET): New macros.
4225         (struct biv_entry): New.
4226         (df, bivs): New global variables.
4227         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
4228         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
4229         Removed.
4230         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
4231         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
4232         analyzed_for_bivness_p, record_biv): New functions.
4233         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
4234         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
4235         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
4236         UD chains.
4237         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
4238         analysed.
4239         (iv_number_of_iterations): Use new interface to iv analysis.
4240         * loop-unroll.c: Do not include varray.h.
4241         (analyze_iv_to_split_insn): Use new interface to iv
4242         analysis.
4243         * loop-unswitch.c (may_unswitch_on): Ditto.
4244         * df.c (df_bitmaps_free): Only work for bbs for that structures are
4245         allocated.
4246         (df_bb_modify): Realloc tables to the new index.
4247         (df_find_use): New function.
4248         * df.h (df_find_use): Declare.
4249         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
4250         outmode.
4251         * cfgloop.h (struct rtx_iv): Remove analysed field.
4252         (iv_get_reaching_def): Removed.
4253         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
4254         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
4255         (loop-iv.o): Add df.h and hashtab.h dependency.
4256         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
4257
4258 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
4259
4260         PR target/25668
4261         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
4262         Double TFmode.
4263         (__floatundisf, __floatundidf): Likewise.
4264         * libgcc2.h (IS_IBM_EXTENDED): Define.
4265
4266 2006-01-19  DJ Delorie  <dj@redhat.com>
4267
4268         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
4269
4270 2006-01-19  Paul Brook  <paul@codesourcery.com>
4271
4272         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
4273         as nothrow when unwinding tables are disabled.
4274
4275 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4276
4277         PR testsuite/25171
4278         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
4279         of bit-field" when in system header.
4280
4281 2006-01-19  DJ Delorie  <dj@redhat.com>
4282
4283         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
4284         the 16 bit shift limit of the m16c.
4285
4286 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
4287
4288         PR target/22099
4289         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
4290         * config/i386/i386.c (output_set_got): Output the label if we have one
4291         for the TARGET_DEEP_BRANCH_PREDICTION case.
4292
4293 2006-01-19  Jan Hubicka  <jh@suse.cz>
4294             H.J. Lu  <hongjiu.lu@intel.com>
4295             Evandro Menezes <evandro.menezes@amd.com>
4296
4297         * invoke.texi (generic): Document
4298         (i686) Update.
4299         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
4300         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
4301         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
4302         (x86_use_incdec, x86_pad_returns): New variables
4303         (TARGET_CPU_DEFAULT_generic): New constant
4304         (TARGET_CPU_DEFAULT_NAMES): Add generic.
4305         (enum processor_type): Add generic32 and generic64.
4306         * i386.md (cpu attribute): Add generic32/generic64
4307         (movhi splitter): Behave sanely when both partial_reg_dependency and
4308         partial_reg_stall are set.
4309         (K8 splitters): Enable for generic as well.
4310         * predicates.md (incdec_operand): Use TARGET_INCDEC
4311         (aligned_operand): Avoid memory mismatch stalls.
4312         * athlon.md: Enable for generic64, new patterns for 128bit moves.
4313         * ppro.md: Enable for generic32
4314         * i386.c (generic64_cost, generic32_cost): New.
4315         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
4316         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
4317         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
4318         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
4319         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
4320         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
4321         x86_partial_reg_dependency, x86_memory_mismatch_stall,
4322         x86_accumulate_outgoing_args, x86_prologue_using_move,
4323         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
4324         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
4325         Enable for generic.
4326         (x86_use_incdec, x86_pad_returns): New.
4327         (override_options): Add generic32 and generic64, translate "generic"
4328         to generic32/generic64 and "i686" to "generic32", refuse
4329         "generic32"/"generic64" as arch target.
4330         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
4331         (ix86_reorg): Honor PAD_RETURNS.
4332
4333 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
4334
4335         * tree-pretty-print.c (dump_generic_node): Handle
4336         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
4337         * cgraph.c (cgraph_expand_queue): Rename from
4338         cgraph_analyze_queue.  Update all users.
4339         * cgraphunit.c (cgraph_assemble_pending_functions): Process
4340         cgraph_expand_queue.
4341         (cgraph_expand_all_functions): Likewise.
4342         (cgraph_finalize_pending_functions): Remove.  Update callers.
4343
4344         * tree.h (OMP_DIRECTIVE_P): Define.
4345         (OMP_PARALLEL_FN): Define.
4346         (OMP_PARALLEL_DATA_ARG): Define.
4347         (OMP_SECTIONS_SECTIONS): Define.
4348         * tree-pass.h (pass_expand_omp): Declare.
4349         * omp-low.c (struct omp_region): Declare.
4350         (struct omp_context): Remove fields 'parallel_type',
4351         'parallel_start_ix' and 'parallel_start_additional_args'.
4352         Update all users.
4353         (struct omp_for_data): Rename from struct expand_omp_for_data.
4354         (omp_regions): New static variable.
4355         (root_omp_region): New static variable.
4356         (find_omp_clause): Make static.
4357         (is_in_combined_parallel_ctx): Remove.
4358         (is_combined_parallel): New.
4359         (extract_omp_for_data): Move earlier in the file.
4360         (workshare_safe_to_combine_p): New.
4361         (get_ws_args_for): New.
4362         (determine_parallel_type): Move earlier in the file.
4363         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
4364         child function.
4365         (omp_copy_decl): Likewise.
4366         (create_omp_child_function): Likewise.
4367         (lookup_omp_region): New.
4368         (dump_omp_region): New.
4369         (debug_omp_region): New.
4370         (debug_all_omp_regions): New.
4371         (new_omp_region): New.
4372         (scan_omp_parallel): If parallel_nesting_level > 1, the
4373         directive is nested within another parallel directive.
4374         Set OMP_PARALLEL_FN.
4375         (scan_omp_for): Do not try to handle combined parallel+for
4376         cases.
4377         Remove FIXME comment.
4378         (scan_omp_nested): Remove.
4379         (scan_omp_1): Do not call scan_omp_nested when
4380         parallel_nesting_level is > 1.
4381         Do not change the DECL_CONTEXT of local variables found.
4382         (lookup_decl_in_outer_ctx): New.
4383         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
4384         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
4385         (lower_reduction_clauses): Rename from expand_reduction_clauses.
4386         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
4387         If CTX is nested, lookup VAR in the outer context when
4388         building copy assignment.
4389         (lower_send_clauses): Rename from expand_send_clauses.
4390         If CTX is nested, lookup VAR in the outer context when
4391         building copy assignments.
4392         (lower_send_shared_vars): Rename from expand_send_shared_vars.
4393         If CTX is nested, lookup VAR in the outer context when
4394         building copy assignments.
4395         (expand_parallel_call): Rename from build_parallel_call.
4396         Handle combined parallel+workshare cases.
4397         Re-implement to emit code into the CFG.
4398         (list2chain): New.
4399         (expand_omp_parallel): Re-implement to emit code into the CFG.
4400         Call move_sese_region_to_fn to outline the sub-graph
4401         containing the parallel region.
4402         (expand_omp_for_1): Remove.
4403         (expand_omp_for_generic): Re-implement to emit code into the
4404         CFG.
4405         (expand_omp_for_static_nochunk): Likewise.
4406         (expand_omp_for_static_chunk): Likewise.
4407         (expand_omp_for): Likewise.
4408         (expand_omp_sections): Likewise.
4409         (remove_exit_barriers): New.
4410         (expand_omp_synch): New.
4411         (expand_omp): New.
4412         (build_omp_regions_1): New.
4413         (build_omp_regions): New.
4414         (execute_expand_omp): New.
4415         (gate_expand_omp): New.
4416         (pass_expand_omp): Define.
4417         (lower_omp_sections): Rename from expand_omp_sections.
4418         Set OMP_SECTIONS_SECTIONS.
4419         (lower_omp_single_simple): Rename from expand_omp_single_simple.
4420         (lower_omp_single_copy): Rename from expand_omp_single_copy.
4421         (lower_omp_single): Rename from expand_omp_simple.
4422         (lower_omp_master): Rename from expand_omp_master.
4423         (lower_omp_ordered): Rename from expand_omp_ordered.
4424         (lower_omp_critical): Rename from expand_omp_critical.
4425         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
4426         (lower_omp_for): Re-implement.
4427         (lower_omp_parallel): Re-implement.
4428         (lower_regimplify): Rename from expand_regimplify.
4429         (lower_omp_1): Rename from expand_omp_1.
4430         If there are syntax errors in the program, replace every
4431         OpenMP directive with NOP.
4432         Call lower_omp_* instead of expand_omp_*.
4433         (lower_omp): Rename from expand_omp.
4434
4435         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
4436         * tree-gimple.h (enum omp_parallel_type): Remove.
4437         (gimple_boolify): Declare extern.
4438         (find_omp_clause, determine_parallel_type): Remove.
4439
4440         * gimple-low.c (lower_omp_directive): New.
4441         (lower_stmt): Call it.
4442         (record_vars_into): Move from ...
4443         (record_vars): ... here.
4444         Call record_vars_into with current_function_decl.
4445
4446         * gimplify.c (struct gimplify_ctx): Remove fields
4447         combined_pre_p and combined_ctxp.  Update users.
4448         (get_formal_tmp_var): Add documentation.
4449         (gimple_boolify): Make extern.
4450         (gimplify_expr_in_ctx): Remove.  Update callers.
4451         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
4452         will always be a BIND_EXPR.
4453         (gimplify_expr): Handle OMP_RETURN_EXPR.
4454         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
4455         (OMP_PARALLEL): Add 3 operands.
4456         (OMP_SECTIONS): Add 1 operand.
4457         (OMP_RETURN_EXPR): Define.
4458
4459         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
4460         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
4461         * tree-iterator.c (alloc_stmt_list): Assert that we are not
4462         creating a circular free list.
4463         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
4464
4465         * tree-flow.h (move_sese_region_to_fn): Declare.
4466         (record_vars_into): Declare.
4467         * tree-cfg.c (make_omp_sections_edges): New.
4468         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
4469         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
4470         OMP_SECTIONS and OMP_SECTION.
4471         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
4472         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
4473         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
4474         (gather_blocks_in_sese_region): New.
4475         (struct move_stmt_d): Declare.
4476         (move_stmt_r): New.
4477         (move_block_to_fn): New.
4478         (move_sese_region_to_fn): New.
4479
4480         * passes.c (init_optimization_passes): Schedule
4481         pass_expand_omp after pass_init_datastructures.
4482
4483         * tree-ssa-operands.c (get_expr_operands): Handle
4484         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
4485         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
4486
4487 2006-01-19  Jeff Law  <law@redhat.com>
4488
4489         * tree-vrp.c (extract_range_from_assert): Refine the result range
4490         if the variable referenced by the ASSERT_EXPR has a range and
4491         either the tentative result range or the previous range is a
4492         VR_ANTI_RANGE.
4493
4494 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4495
4496         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
4497
4498 2006-01-19  Jan Hubicka  <jh@suse.cz>
4499
4500         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
4501
4502 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
4503
4504         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
4505         (expand_compound_operation, expand_field_assignment): Fail if the
4506         bit lengths of an extract operation are out of range.
4507         (make_extraction): Compute wanted_inner_mode based on the position
4508         and length of the extraction.  Make it extraction_mode for non-constant
4509         positions, and do not modify offset in that case.  When generating a
4510         new MEM, use a mode that can hold the extraction while keeping correct
4511         alignment.  Remove code that supported MEMs wrapped by USEs.
4512         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
4513
4514 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
4515
4516         * config/s390/s390.md ("Y", "y"): New mode attribute.
4517         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
4518         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
4519         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
4520         "*addsi3_imm_cc", "*addsi3_carry1_cc",
4521         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
4522         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
4523         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
4524         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
4525         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
4526         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
4527         "addsi3", "subsi3"): Insn patterns removed.
4528         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
4529         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
4530         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
4531         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
4532         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
4533         "*sub<mode>3_cconly2"): New insn patterns.
4534         ("addsi3", "subsi3"): New expanders.
4535
4536 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
4537
4538         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
4539         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
4540         existing STMT_VINFO_VECTYPE if available.
4541         (vect_mark_relevant): Add special handling for stmts that are
4542         marked as STMT_VINFO_IN_PATTERN_P.
4543         (vect_analyze_loop): Call vect_pattern_recog.
4544         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
4545         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
4546         stmt_info.
4547         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
4548         (vect_recog_func_ptr): New function-pointer type.
4549         * tree-vect-patterns.c: New file.
4550         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
4551         (vect_recog_dot_prod_pattern, vect_pattern_recog):
4552         (vect_pattern_recog_1): New functions.
4553         (vect_pattern_recog_funcs): New array of function pointers.
4554
4555         * tree-vectorizer.h (ternary_op): New enum value.
4556         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
4557         declaration. Revised documentation. Removed redundant dump prints.
4558         Removed redundant argument. Added support for reduction patterns.
4559         (vectorizable_reduction): Added support for reduction patterns.
4560         (vect_transform_stmt): Added support for patterns.
4561
4562         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
4563         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
4564         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
4565         (expand_widen_pattern_expr): New function.
4566         (init_optabs): Initialize new optabs udot_prod_optab,
4567         sdot_prod_optab.
4568         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
4569         (sdot_prod_optab, udot_prod_optab): Define new optabs.
4570         (expand_widen_pattern_expr): New function declaration.
4571         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
4572         tree-codes.
4573         * tree-inline.c (estimate_num_insns_1): Added cases for new
4574         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4575         * tree-pretty-print.c (dump_generic_node): Likewise.
4576         (op_prio): Likewise.
4577         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4578         * tree-ssa-operands.c (get_expr_operands): Added case for
4579         DOT_PROD_EXPR.
4580         * tree-vect-patterns.c (widened_name_p): New function.
4581         (vect_recog_dot_prod_pattern): Added function implementation.
4582         * tree-vect-transform.c (get_initial_def_for_reduction): Added
4583         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
4584         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
4585         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
4586
4587         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
4588         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
4589         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
4590         (init_optabs): Initialize new optabs widen_ssum_optab,
4591         widen_usum_optab.
4592         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
4593         (widen_ssum_optab, widen_usum_optab): Define new optabs.
4594         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
4595         use instead of type of def.
4596         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
4597         function implementation.
4598         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
4599         widen_ssumv8hi): New.
4600
4601         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
4602         patterns.
4603
4604 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4605
4606         PR c/25805
4607         * c-decl.c (add_flexible_array_elts_to_size): New function.
4608         (finish_decl): Use it.
4609
4610 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
4611
4612         * diagnostic.h: Include options.h.
4613         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
4614         dependancies for diagnostic.h.
4615         * Makefile.in (DIAGNOSTIC_H): Add options.h.
4616
4617 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
4618
4619         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
4620         (ssa_ro_call_cache_valid): Ditto.
4621         * tree-ssa-alias.c (sort_tags_by_id): New function.
4622         (init_transitive_clobber_worklist): Ditto.
4623         (add_to_worklist): Ditto.
4624         (mark_aliases_call_clobbered): Ditto.
4625         (compute_tag_properties): Ditto.
4626         (set_initial_properties): Ditto.
4627         (compute_call_clobbered): Ditto.
4628         (compute_may_aliases):  Call compute_call_clobbered and grouping.
4629         (compute_flow_sensitive_aliasing): Remove clobbering related code.
4630         (compute_flow_insensitive_aliasing): Grouping now happens in our
4631         caller.
4632         (setup_pointers_and_addressables): Remove clobbering related code.
4633         (add_may_alias): Ditto.
4634         (replace_may_alias): Ditto.
4635         (get_nmt_for): Ditto.
4636         (create_global_var):
4637         (is_escape_site): Return an escape_type enumeration.
4638         * tree-flow-inline.h (is_call_clobbered):  Global var does not
4639         imply call clobbered.
4640         (mark_call_clobbered): Take a reason for marking this. Remove
4641         marking of globalness, and cache invalidation.
4642         (clear_call_clobbered): Remove cache invalidation code.
4643         * tree-dfa.c (dump_variable): If details is on, dump the reason
4644         for escaping.
4645         * tree-outof-ssa.c (create_temp): Copy escape mask from original
4646         variable.
4647         * tree-flow.h (struct ptr_info_def): Add escape mask member.
4648         (struct var_ann_d): Ditto.
4649         (enum escape_type): New.
4650         (mark_call_clobbered): Adjust prototype.
4651         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
4652         are never call clobbered.
4653         Record reasons for escaping.
4654         * tree-ssa-structalias.h (is_escape_site): Update prototype.
4655         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
4656         (ssa_ro_call_cache_valid): Ditto.
4657         (clobbered_v_may_defs): Ditto.
4658         (clobbered_vuses): Ditto.
4659         (ro_call_vuses): Ditto.
4660         (clobber_stats): New.
4661         (init_ssa_operands): Zero out clobber stats.
4662         (fini_ssa_operands): Print out clobber stats.
4663         (get_call_expr_operands): Pass callee fndecl to
4664         add_call_read_ops).
4665         (add_call_clobber_ops): Remove use of cache.
4666         Add use of PURE_CONST information.
4667         (add_call_read_ops): Remove use of cache.
4668         Add use of static not_read information.
4669
4670 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
4671
4672         Introduce TLS descriptors for i386 and x86_64.
4673         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
4674         (TARGET_ANY_GNU_TLS): New macro.
4675         (enum tls_dialect): Added TLS_DIALECT_GNU2.
4676         (struct machine_function): Add tls_descriptor_call_expanded_p.
4677         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
4678         (ix86_current_function_calls_tls_descriptor): Likewise.
4679         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
4680         (override_options): Introduce gnu2 tls dialect.
4681         (ix86_frame_pointer_required): Functions containing TLSCALLs are
4682         not leaves.
4683         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
4684         Likewise.
4685         (legitimize_tls_address): Adjust logic for GNU2 TLS.
4686         (ix86_init_machine_status): Initialize new field.
4687         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
4688         (ix86_tls_module_base): New.
4689         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
4690         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
4691         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
4692         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
4693         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
4694         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
4695         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
4696         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
4697         * config/i386/predicates.md (tls_modbase_operand): New.
4698         (tp_or_register_operand): New.
4699
4700 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
4701
4702         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
4703         (look_for_address_of): Ditto.
4704         (ipa_init): Walk the function decls.
4705         (static_execute): Don't set readonly on FUNCTION_DECL's.
4706
4707 2006-01-18  Roger Sayle  <roger@eyesopen.com>
4708
4709         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
4710         for shifts where the source and destination registers are different.
4711
4712 2006-01-18  Paul Brook  <paul@codesourcery.com>
4713
4714         Merge from csl-arm-branch.
4715         2005-03-14  Julian Brown  <julian@codesourcery.com>
4716         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
4717         (aeabi_llsl): Likewise.
4718         (ashrdi3): Likewise.
4719         (aeabi_lasr): Likewise.
4720         (lshrdi3): Likewise.
4721         (aeabi_llsr): Likewise.
4722         2005-03-10  Julian Brown  <julian@codesourcery.com>
4723         * config.gcc: Disable shared libgcc for SymbianOS.
4724         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
4725
4726 2006-01-18  DJ Delorie  <dj@redhat.com>
4727
4728         * c-pragma.c (handle_pragma_diagnostic): New.
4729         (init_pragma): Register it.
4730         * doc/extend.texi: Document it.
4731
4732         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
4733         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
4734         (diagnostic_context): Add classify_diagnostic[].
4735         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
4736         as errors if they're overridden to DK_WARNING.
4737         (diagnostic_initialize): Initialize classify_diagnostic[].
4738         (diagnostic_set_kind_override): New.
4739         (diagnostic_report_diagnostic): Check for kind changes.
4740         * opts.c (common_handle_option): Take lang_mask.  Update callers.
4741         Handle OPT_Werror_.
4742         * common.opt (Werror=): New.
4743         * doc/invoke.texi: Document -Werror=*
4744
4745 2006-01-18  Jeff Law  <law@redhat.com>
4746
4747         * tree-vrp.c (test_for_singularity): Correct test for new
4748         min limit.  Use operand_equal_p rather than pointer equality
4749         for testing if new min/max values are equal.
4750
4751         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
4752         using range information until after propagation and folding.
4753
4754 2006-01-18  Richard Henderson  <rth@redhat.com>
4755             Aldy Hernandez  <aldyh@redhat.com>
4756             Jakub Jelinek  <jakub@redhat.com>
4757             Diego Novillo  <dnovillo@redhat.com>
4758
4759         * omp-low.c: New file.
4760         * c-omp.c: New file.
4761
4762 2006-01-18  Richard Henderson  <rth@redhat.com>
4763             Jakub Jelinek  <jakub@redhat.com>
4764             Diego Novillo  <dnovillo@redhat.com>
4765
4766         * doc/invoke.texi: Document -fopenmp.
4767         * tree-dump.h (debug_function): Declare.
4768         * hooks.c (hook_bool_tree_bool_false): New function.
4769         (hook_tree_tree_null): Remove.
4770         (hook_tree_tree_tree_null): New.
4771         * hooks.h: Update to match.
4772         * tree-pretty-print.c (debug_tree_chain): New.
4773         (print_generic_expr): Handle TDF_CHAIN.
4774         (dump_generic_node): Handle BLOCK.
4775         Do not abort with incomplete SWITCH_EXPRs.
4776         Do not dump body of an OpenMP directive if TDF_SLIM is given.
4777         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
4778         print space after directive name.
4779         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
4780         Handle OMP_MASTER and OMP_ORDERED.
4781         Handle printing of OMP_BODY just in one place, goto
4782         dump_omp_body in the rest of OMP_* nodes that have
4783         OMP_BODY.
4784         Don't handle clause nodes here.  Update omp statements to
4785         use dump_omp_clauses.
4786         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
4787         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
4788         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
4789         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
4790         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
4791         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
4792         Adjust output for GOMP_PARALLEL.
4793         (dump_omp_clauses): New.
4794         (print_declaration): Dump DECL_VALUE_EXPR.
4795         (op_symbol_1): Split out of op_symbol.
4796         (dumping_stmts): Remove.  Update all users.
4797         * cgraph.c (cgraph_analyze_queue): New.
4798         (cgraph_add_new_function): New.
4799         * cgraph.h (cgraph_analyze_queue): Declare.
4800         (cgraph_add_new_function): Declare.
4801         (cgraph_lower_function): Remove.
4802         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
4803         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
4804         and TYPE_P nodes in its default clause.
4805         (empty_body_p): New.
4806         (tree_range_check_failed): New.
4807         (build5_stat): New.
4808         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
4809         OMP_CLAUSE_REDUCTION_MERGE,
4810         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
4811         OMP_CLAUSE_PRIVATE_DEBUG,
4812         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
4813         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
4814         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
4815         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
4816         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
4817         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
4818         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
4819         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
4820         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
4821         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
4822         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
4823         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
4824         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
4825         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
4826         (TREE_RANGE_CHECK): New.
4827         (empty_body_p): Declare.
4828         (enum omp_clause_default_kind): New.
4829         (build_string_literal): Declare.
4830         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
4831         (build5_stat, build5): Declare.
4832         * tree-pass.h (TDF_CHAIN): Define.
4833         * tree-pass.h (PROP_gimple_lomp): Define.
4834         (pass_lower_omp): Declare.
4835         * diagnostic.h (debug_tree_chain): Declare.
4836         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
4837         mode_for_size.
4838         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
4839         * builtins.c (build_string_literal): Make extern.
4840         * gcc.c (include_spec_function): New.
4841         (static_spec_functions): Add it.
4842         (main): Move load of libgomp.spec ...
4843         (LINK_COMMAND_SPEC): ... here.
4844         (link_gomp_spec): New.
4845         (static_specs): Include it.
4846         (LINK_COMMAND_SPEC): Add link_gomp.
4847         (GOMP_SELF_SPECS): New.
4848         (driver_self_specs): Include it.
4849         (switch_matches): Don't mark inline.
4850         (main): Load libgomp.spec.
4851         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
4852         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
4853         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
4854         * tree-gimple.h (enum omp_parallel): Declare.
4855         (determine_parallel_type): Declare.
4856         (omp_firstprivatize_variable): Declare.
4857         (omp_reduction_init): Declare.
4858         (diagnose_omp_structured_block_errors): Declare.
4859         (struct walk_stmt_info): Add want_return_expr.
4860         (struct walk_stmt_info): Add want_bind_expr, want_locations.
4861         (find_omp_clause): Declare.
4862         (insert_field_into_struct): Declare.
4863         (struct walk_stmt_info): Move from tree-nested.c
4864         (walk_stmts): Declare.
4865         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
4866         to 200505.
4867         * cgraphunit.c (cgraph_lower_function): Make static.
4868         (cgraph_finalize_pending_functions): New.
4869         (cgraph_finalize_function): Call it.
4870         (cgraph_finalize_compilation_unit): Likewise.
4871         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
4872         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
4873         (BT_FN_UINT_UINT): New.
4874         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
4875         DEF_FUNCTION_TYPE_VAR_4): Document.
4876         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
4877         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
4878         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
4879         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
4880         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
4881         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
4882         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
4883         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
4884         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
4885         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
4886         into separate files.
4887         (DEF_GOMP_BUILTIN): New.
4888         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
4889         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
4890         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
4891         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
4892         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
4893         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
4894         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
4895         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
4896         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
4897         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
4898         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
4899         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
4900         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
4901         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
4902         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
4903         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
4904         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
4905         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
4906         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
4907         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
4908         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
4909         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
4910         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
4911         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
4912         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
4913         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
4914         * sync-builtins.def: New file, moved from builtins.def.
4915         * omp-builtins.def: New file, moved from builtins.def.
4916         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
4917         * gimple-low.c (lower_function_body): Clear data.
4918         (lower_stmt): Do not handle COMPOUND_EXPR.
4919         Remove call to print_node_brief.
4920         * c-tree.h (c_finish_omp_clauses): New prototype.
4921         (C_DECL_THREADPRIVATE_P): Define.
4922         (lookup_name_no_remap, c_omp_remap_private): Remove
4923         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
4924         (check_for_loop_decls): Update decl.
4925         (lookup_name_no_remap, c_omp_remap_private): Declare.
4926         (build_indirect_ref, build_modify_expr, pushdecl,
4927         pushdecl_top_level): Move to c-common.h.
4928         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
4929         before the switch, but just in the 2 places that need it.
4930         * c-decl.c (diagnose_mismatched_decls): Do not check for
4931         mismatched thread-local attributes when OLDDECL is marked
4932         threadprivate and NEWDECL has no thread-local attributes.
4933         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
4934         (c_gimple_diagnostics_recursively): Rename from
4935         c_warn_unused_result_recursively.  Invoke
4936         diagnose_omp_structured_block_errors.
4937         (check_for_loop_decls): Return a singular decl found.
4938         * langhooks.c (lhd_omp_predetermined_sharing): Return
4939         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
4940         (lhd_omp_firstprivatize_type_sizes): New.
4941         (lhd_omp_assignment): New.
4942         (lhd_omp_predetermined_sharing): New.
4943         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
4944         (struct lang_hooks_for_types): Add
4945         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
4946         omp_predetermined_sharing, omp_disregard_value_expr,
4947         omp_private_debug_clause, omp_clause_default_ctor,
4948         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
4949         (c_finish_omp_clauses): New.
4950         (c_finish_bc_stmt): Diagnose break within omp for.
4951         (c_begin_omp_parallel, c_finish_omp_parallel): New.
4952         (build_unary_op): Return error_mark after reporting
4953         a readonly_error.
4954         (build_modify_expr): Likewise.
4955         * gimplify.c: Include optabs.h and pointer-set.h.
4956         (enum gimplify_omp_var_data): Declare.
4957         (struct gimplify_omp_ctx): Declare.
4958         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
4959         and combined_ctxp.
4960         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
4961         (push_gimplify_context, pop_gimplify_context): Allow nesting.
4962         (splay_tree_compare_decl_uid): New.
4963         (new_omp_context): New.
4964         (delete_omp_context): New.
4965         (gimple_add_tmp_var): Call omp_add_variable.
4966         (gimplify_bind_expr): Likewise.
4967         (gimplify_var_or_parm_decl): If omp_notice_variable returned
4968         true, disregard DECL_VALUE_EXPR on the decl if any.
4969         (gimplify_expr_in_ctx): New.
4970         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
4971         omp_add_variable, omp_notice_variable, omp_is_private
4972         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
4973         gimplify_adjust_omp_clauses, gimplify_omp_parallel
4974         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
4975         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
4976         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
4977         gimplify_omp_atomic): New.
4978         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4979         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4980         OMP_CRITICAL and OMP_ATOMIC.
4981         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
4982         * c-pragma.h (enum pragma_kind): Add
4983         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
4984         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
4985         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
4986         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
4987         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
4988         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
4989         PRAGMA_OMP_THREADPRIVATE.
4990         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
4991         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
4992         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
4993         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
4994         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
4995         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
4996         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
4997         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
4998         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
4999         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
5000         * tree-ssa-dce.c (find_control_dependence): Do not assume that
5001         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
5002         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
5003         OpenMP directives.
5004         (struct nesting_info): Add field_map,
5005         suppress_expansion, debug_var_chain.
5006         (create_nesting_tree): Initialize them.
5007         (lookup_field_for_decl): Use field_map.
5008         (get_nonlocal_debug_decl, get_local_debug_decl): New.
5009         (convert_local_omp_clauses): New.
5010         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
5011         (walk_body): Split out of walk_function.
5012         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
5013         (convert_nonlocal_reference): Handle omp statements.
5014         (convert_local_reference): Likewise.
5015         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
5016         (unnest_nesting_tree): New.
5017         (lower_nested_functions): Call it.
5018         (insert_field_into_struct): Make extern.
5019         (struct walk_stmt_info): Move to tree-gimple.h.
5020         (walk_stmts): Make extern.
5021         * omp-builtins.def: New file.
5022         * tree-iterator.c (expr_only): Clarify comment.
5023         * c-common.h (pushdecl_top_level, pushdecl,
5024         build_modify_expr, build_indirect_ref,
5025         c_finish_omp_master, c_finish_omp_critical,
5026         c_finish_omp_ordered, c_finish_omp_barrier,
5027         c_finish_omp_atomic, c_finish_omp_flush,
5028         c_finish_omp_for, c_split_parallel_clauses,
5029         omp_clause_default_kind, c_omp_sharing_predetermined,
5030         c_omp_remap_decl): Declare.
5031         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
5032         (OBJS-common): Add omp-low.o.
5033         (c-omp.o, omp-low.o): Add.
5034         (gimplify.o): Add dependency on $(OPTABS_H).
5035         (GTFILES): Add omp-low.c.
5036         (gt-stringpool.h): Add.
5037         * tree-cfg.c (set_bb_for_stmt): Do not update the
5038         block-to-labels map if we are currently expanding to RTL.
5039         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
5040         checks.
5041         Handle IDENTIFIER_NODE.
5042         (tree_verify_flow_info): Do not ICE when emitting error
5043         messages about invalid labels.
5044         (dump_function_to_file): Reset CFUN before emitting the body
5045         of the function.
5046         (debug_function): New.
5047         * passes.c (init_optimization_passes): Schedule
5048         pass_lower_omp.
5049         * langhooks-def.h (lhd_omp_predetermined_sharing,
5050         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
5051         Declare.
5052         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
5053         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
5054         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
5055         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
5056         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
5057         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
5058         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
5059         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
5060         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
5061         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
5062         (LANG_HOOK_DECLS): Use them.
5063
5064 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
5065             Richard Henderson  <rth@redhat.com>
5066             Jakub Jelinek  <jakub@redhat.com>
5067             Diego Novillo  <dnovillo@redhat.com>
5068
5069         * c-parser.c (pragma_omp_clause): Define.
5070         (c_parser_declaration_or_fndef): Document OpenMP syntax.
5071         (c_parser_compound_statement): Likewise.
5072         (c_parser_statement): Likewise.
5073         (c_parser_pragma): Handle omp pragmas.
5074         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
5075         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
5076         (c_parser_omp_clause_name, check_no_duplicate_clause,
5077         c_parser_omp_variable_list,
5078         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
5079         c_parser_omp_clause_copyprivate,
5080         c_parser_omp_clause_default,
5081         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
5082         c_parser_omp_clause_lastprivate,
5083         c_parser_omp_clause_nowait,
5084         c_parser_omp_clause_num_threads,
5085         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
5086         c_parser_omp_clause_reduction,
5087         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
5088         c_parser_omp_all_clauses, c_parser_omp_structured_block,
5089         c_parser_omp_atomic, c_parser_omp_barrier,
5090         c_parser_omp_critical, c_parser_omp_flush,
5091         c_parser_omp_for_loop, c_parser_omp_for,
5092         c_parser_omp_master, c_parser_omp_ordered,
5093         c_parser_omp_sections_scope, c_parser_omp_sections,
5094         c_parser_omp_parallel, c_parser_omp_single,
5095         c_parser_omp_construct, c_parser_omp_threadprivate): New.
5096         * c-pragma.c (init_pragma): Do omp pragma registration here.
5097         * c.opt (fopenmp): New flag.
5098
5099 2006-01-18  Eric Christopher  <echristo@apple.com>
5100
5101         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
5102         * config/darwin.h (GOMP_SELF_SPECS): Define.
5103
5104 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5105
5106         * rtl.h: Remove the prototype for reg_alloc.
5107
5108 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5109
5110         PR target/25731
5111         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
5112         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
5113         sjlj and dwarf2 exception handling.
5114         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
5115         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
5116         * pa/pa.c (function_value): Treat complex and vector types as
5117         aggregates.
5118         (function_arg): Likewise.  Only pass scalar floats in the floating
5119         point argument registers.
5120         * pa/t-slibgcc-dwarf-ver: New file.
5121         * pa/t-slibgcc-sjlj-ver: New file.
5122         * pa/t-slibgcc-elf-ver: Delete file.
5123
5124 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
5125
5126         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
5127         unlikely_test_section_p test.
5128
5129 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5130
5131         * mode-switching.c (optimize_mode_switching): Make it static.
5132         * basic-block.h: Remove the prototype for
5133         optimize_mode_switching.
5134
5135         * modulo-sched.c (sms_schedule): Make it static.
5136         * rtl.h: Remove the prototype for sms_schedule.
5137
5138         * postreload-gcse.c (gcse_after_reload_main): Make it static.
5139         * rtl.h: Remove the prototype for gcse_after_reload_main.
5140
5141         * reg-stack.c (reg_to_stack): Make it static.
5142         * rtl.h: Remove the prototype for reg_to_stack.
5143
5144         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
5145         Make them static.
5146         * rtl.h: Remove the prototypes for regrename_optimize and
5147         copyprop_hardreg_forward.
5148
5149 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
5150
5151         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
5152         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
5153         Test against the appropriate null constant for the mode.
5154         If 'fixup_overlap' is true, swap the operands if they overlap.
5155         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
5156         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
5157         alpha_split_tmode_pair and adjust for above change.
5158         * config/alpha/alpha.md (movtf_internal): Adjust call to
5159         alpha_split_tfmode_pair and rely on it to swap the operands.
5160         (movti_internal): New insn and post-reload splitter.
5161         (movti): New expander.
5162
5163 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
5164
5165         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
5166         operands.
5167
5168 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5169
5170         * rtlanal.c (global_reg_mentioned_p_1,
5171         global_reg_mentioned_p): Remove.
5172         * rtl.h: Remove the prototype for global_reg_mentioned_p.
5173
5174         * flow.c (initialize_uninitialized_subregs): Make it static.
5175         * rtl.h: Remove the prototype for
5176         initialize_uninitialized_subregs.
5177
5178         * function.c (instantiate_virtual_regs): Make it static.
5179         * function.h: Remove the prototype for
5180         instantiate_virtual_regs.
5181
5182         * regmove.c (regmove_optimize, combine_stack_adjustments):
5183         Make them static.
5184         * rtl.h: Remove the prototypes for regmove_optimize and
5185         combine_stack_adjustments.
5186
5187 2006-01-17  Roger Sayle  <roger@eyesopen.com>
5188
5189         * config/i386/i386.c (COSTS_N_BYTES): New macro.
5190         (size_cost): Encode costs in bytes so that a reg-reg addition is
5191         equivalent to COSTS_N_INSNS(1).
5192         (override_options): Use the size_cost.branch_cost as the default
5193         ix86_branch_cost when optimizing for size.
5194
5195 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5196
5197         * Makefile.in (D32PBIT_FUNCS): New.
5198         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
5199         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
5200         D64PBIT_FUNCS and D128PBIT_FUNCS.
5201         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
5202         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
5203         D128PBIT are set.
5204         (decnumber_dep): Define.
5205         * doc/libgcc.texi (Decimal float library routines): New node.
5206         * config/dfp-bit.h, config/dfp-bit.c: New files.
5207
5208 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5209
5210         * expr.c (emit_move_change_mode): Always adjust addresses, not
5211         just during reload.  Copy replacements only during reload.
5212         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
5213         emit_move_via_integer.
5214
5215 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
5216
5217         * Makefile.in (check-%, check-consistency): Use $${srcdir}
5218         instead of $(srcdir) and ${srcdir}.
5219
5220 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
5221
5222         PR target/592
5223         PR middle-end/11135
5224         * arm.h (struct machine_function): Add pic_reg.
5225         * arm.c (arm_pic_register): Make unsigned.
5226         (arm_override_options): Only set arm_pic_register if
5227         TARGET_SINGLE_PIC_BASE.
5228         (use_return_insn): Only test for a pic register if it is fixed.
5229         (arm_compute_save_reg0_reg12_mask): Likewise.
5230         (thumb_compute_save_reg_mask): Likewise.
5231         (legitimate_pic_operand): Factor out some known invariants.
5232         (legitimize_pic_address): If we don't have a fixed pic register,
5233         then set up a pseudo in the function entry sequence.  Handle the
5234         pic base being in a pseudo.
5235         (arm_load_pic_register): Handle the pic register being in a pseudo.
5236         (arm_expand_prologue): Only set up the pic register if it is fixed.
5237         (thumb_expand_prologue): Likewise.
5238         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
5239         (pic_load_addr_based_insn): Likewise.
5240         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
5241         fixed.
5242
5243 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5244
5245         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
5246         decimal float modes for all floating point registers.
5247
5248         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
5249         match_code "mem" with match_test "macho_lo_sum_memory_operand".
5250
5251 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
5252
5253         PR c/25682
5254         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
5255         even when the pointer is not NULL.
5256
5257 2006-01-16  Ian Lance Taylor  <ian@airs.com>
5258
5259         * common.opt (ftoplevel-reorder): New option.
5260         * cgraph.c (cgraph_asm_nodes): New global variable.
5261         (cgraph_asm_last_node): New static variable.
5262         (cgraph_order): New global variable.
5263         (cgraph_create_node): Set new order field.
5264         (cgraph_varpool_node): Likewise.
5265         (decide_is_variable_needed): Return true if not
5266         flag_toplevel_reorder.
5267         (cgraph_add_asm_node): New function.
5268         * cgraph.h (struct cgraph_node): Add order field.
5269         (struct cgraph_varpool_node): Add order field.
5270         (struct cgraph_asm_node): Define.
5271         (cgraph_asm_nodes, cgraph_order): Declare.
5272         (cgraph_add_asm_node): Declare.
5273         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
5274         function.
5275         (cgraph_varpool_assemble_pending_decls): Call it.
5276         (cgraph_output_pending_asms): New static function.
5277         (cgraph_finalize_compilation_unit): Call it.
5278         (struct cgraph_order_sort): Define.
5279         (cgraph_output_in_order): New static function.
5280         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
5281         !flag_toplevel_reorder case.
5282         * c-parser.c: Include "cgraph.h".
5283         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
5284         assemble_asm.
5285         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
5286         than -fno-unit-at-a-time.
5287         * doc/invoke.texi (Option Summary): Mention
5288         -fno-toplevel-reorder.
5289         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
5290         -funit-at-a-time documentation.
5291
5292 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
5293             Kazu Hirata  <kazu@codesourcery.com>
5294
5295         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
5296
5297 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
5298
5299         * Makefile.in (FUNCTION_H): New.  Use it instead of
5300         function.h throughout the file.
5301         * function.h: Include tree.h.
5302
5303 2006-01-17  Ben Elliston  <bje@au.ibm.com>
5304
5305         * recog.c: Separate some functions with whitespace.
5306
5307 2006-01-16  Richard Henderson  <rth@redhat.com>
5308
5309         Merge from gomp branch:
5310         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
5311         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
5312         and rename from struct inline_data.  Rename callee* to dst*;
5313         caller* to src*; add copy_decl hook, transform_call_graph_edges,
5314         transform_new_cfg, transform_return_to_modify, and
5315         transform_lang_insert_block flags; remove cloning_p, versioning_p,
5316         update_clones_p.
5317         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
5318         (copy_decl_for_dup): Remove.
5319         * tree-inline.c (struct inline_data): Move to header.
5320         (insert_decl_map): Export.
5321         (remap_decl): Update for member name changes.  Use copy_decl hook.
5322         Allow for replacement to be a non-decl.  Remove dead code.
5323         (remap_type_1): Check for existing mapping.
5324         (remap_type): Export.
5325         (remap_decls): Update for member name changes.
5326         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
5327         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
5328         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
5329         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
5330         (tree_function_versioning, build_duplicate_type): Likewise.
5331         (copy_body_r): Likewise.  Export.
5332         (copy_decl_for_dup): Split into ...
5333         (copy_decl_for_dup_finish, copy_decl_to_var,
5334         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
5335         (replace_ref_tree, inlining_p): Remove.
5336
5337 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5338
5339         * ifcvt.c (if_convert): Make it static.
5340         * rtl.h: Remove the prototype for if_convert.
5341
5342         * local-alloc.c (local_alloc): Make it static.
5343         * rtl.h: Remove the prototype for local_alloc.
5344
5345         * loop.c (loop_optimize): Make it static.
5346         * cfgloop.h: Remove the prototype for loop_optimize.
5347         * rtl.h: Likewise.
5348
5349 2006-01-16  DJ Delorie  <dj@redhat.com>
5350
5351         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
5352         mems.
5353
5354 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5355
5356         * pa.md: Disparage copies between general and floating-point registers
5357         in 32-bit move patterns.
5358
5359 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
5360
5361         PR testsuite/25741
5362         * Makefile.in (check-%): Depend on site.exp instead of
5363         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
5364         directories.
5365
5366 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5367
5368         * global.c (global_alloc): Make it static.
5369         * rtl.h: Remove the prototype for global_alloc.
5370
5371 2006-01-16  Richard Guenther  <rguenther@suse.de>
5372
5373         * tree-ssa-alias.c (struct used_part): Add write_only field.
5374         (get_or_create_used_part_for): Initialize it to true.
5375         (create_overlap_variables_for): Don't create structure variables
5376         for structures that only are written to.
5377         (find_used_portions): Handle MODIFY_EXPR to track whether a
5378         structure is only written to.
5379
5380 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5381
5382         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
5383         static.
5384         * basic-block.h: Remove the prototype for
5385         partition_hot_cold_basic_blocks.
5386
5387 2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>
5388
5389         * cppspec.c (lang_specific_spec_functions): Remove.
5390         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
5391         * gcc.h (lang_specific_spec_functions): Remove.
5392         * gccspec.c (lang_specific_spec_functions): Remove.
5393
5394 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
5395
5396         * combine.c (record_value_for_reg): Invalidate registers
5397         if INSN is null.
5398         (record_dead_and_set_regs_1): Likewise, by passing them to
5399         record_value_for_reg.
5400         (record_dead_and_set_regs): Invalidate stores made by a
5401         call.  We do not combine across a call, but we still
5402         relied on equivalences.
5403
5404 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5405
5406         * tree-vrp.c (extract_range_from_binary_expr): Cope with
5407         vrp_int_const_binop returning non-constant nodes.
5408
5409 2006-01-16  Paul Brook  <paul@codesourcery.com>
5410
5411         * config/m68k/m68k.c (output_move_const_into_data_reg):
5412         Output correct mnemonic for mvz and mvs.
5413
5414 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
5415
5416         * rtl-factoring.c: Add sequence abstraction algorithm.
5417         * cfgcleanup.c (outgoing_edges_match): Extra checks.
5418         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
5419         ABNORMAL edges.
5420         (block_has_preserve_label): New function.
5421         * common.opt: Register new pass.
5422         * Makefile.in: Ditto.
5423         * passes.c: Ditto.
5424         * timevar.def: Ditto.
5425         * tree-pass.h: Ditto.
5426         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
5427         * rtl.h (make_jump_insn_raw): Add forward decl.
5428         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
5429
5430 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5431             Roger Sayle  <roger@eyesopen.com>
5432
5433         * fold-const.c (fold_minmax): New static function.
5434         (fold_binary) <MIN_EXPR>: Call it.
5435         <MAX_EXPR>: Likewise.
5436         * stor-layout.c (place_field): Use DECL_SIZE consistently
5437         in the computation of the new record size.
5438
5439 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5440
5441         * cse.c (cse_condition_code_reg): Make it static.
5442         * rtl.h: Remove the prototype for cse_condition_code_reg.
5443
5444         * combine.c (combine_instructions): Make it static.
5445         * rtl.h: Remove the prototype for combine_instructions.
5446
5447 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5448
5449         PR target/25168
5450         * tree.c (get_file_function_name_long): Concatenate the first global
5451         object name with a string derived from the input filename of the object
5452         for type "F".
5453
5454 2006-01-16  Ben Elliston  <bje@au.ibm.com>
5455
5456         * config/i386/winnt-stubs.c: Update FSF address.
5457         * config/xtensa/ieee754-df.S: Ditto.
5458         * config/xtensa/ieee754-sf.S: Ditto.
5459
5460 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5461
5462         * ifcvt.c (noce_init_if_info): New static function, broken out of
5463         noce_process_if_block.
5464         (noce_process_if_block): Call noce_init_if_info.
5465         (check_cond_move_block): New static function.
5466         (cond_move_process_if_block): New static function.
5467         (process_if_block): Call cond_move_process_if_block.
5468
5469 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
5470
5471         * cselib.c (hash_table): Rename to cselib_hash_table.
5472         (cselib_clear_table, discard_useless_values,
5473         remove_useless_values, cselib_lookup_mem, cselib_lookup,
5474         cselib_init, cselib_finish): Adjust uses of hash_table.
5475
5476 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
5477
5478         PR tree-optimization/25485
5479         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
5480         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
5481         is known to be false and true, respectively.
5482
5483 2006-01-14  Richard Guenther  <rguenther@suse.de>
5484
5485         PR tree-optimization/22548
5486         PR tree-optimization/22555
5487         PR tree-optimization/22501
5488         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
5489         * params.def (salias-max-array-elements): New parameter.
5490         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
5491         * doc/invoke.texi (salias-max-array-elements): Document.
5492         * tree-flow-inline.h (var_can_have_subvars): We also handle
5493         arrays now.
5494         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
5495         COMPONENT_REF.
5496         * tree-ssa-structalias.c (params.h): Include.
5497         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
5498         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
5499         (get_constraint_for): For ADDR_EXPR operating on something
5500         containing an ARRAY_REF, add all subvars to the solution.
5501         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
5502         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
5503         for creating MUST_DEFs.
5504         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
5505
5506 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
5507
5508         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
5509         functions.
5510         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
5511         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
5512         number_of_iterations_le): New functions.
5513         (number_of_iterations_special): Removed.
5514         (number_of_iterations_exit): Do not use number_of_iterations_special.
5515         * tree.c (unsigned_type_for): Always return integer type.
5516
5517 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
5518         Richard Guenther  <rguenther@suse.de>
5519
5520         PR rtl-optimization/24257
5521         * gcse.c (find_moveable_store): Only consider a store movable
5522         when the SET_SRC of the insn can be assigned to a register.
5523
5524 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5525
5526         * tree.c (tree_not_class_check_failed): New function.
5527         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
5528         (tree_not_class_check_failed): Declare.
5529
5530 2006-01-13  Ian Lance Taylor  <ian@airs.com>
5531
5532         * reload1.c (do_output_reload): Add assertion rejecting a
5533         CALL_INSN.
5534
5535 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
5536
5537         * combine.c (struct reg_stat): Add new fields truncation_label and
5538         truncated_to_mode.
5539         (record_value_for_reg): Reset truncated_to_mode.
5540         (record_truncated_value): New function.
5541         (check_promoted_subreg): Call it.  Rename to check_conversions.
5542         (combine_instructions): Rename check_promoted_subreg to
5543         check_conversions.
5544         (reg_truncated_to_mode): New function.
5545         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
5546         (gen_lowpart_or_truncate): New function.
5547         (force_to_mode): Use it instead of gen_lowpart.
5548
5549 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
5550
5551         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
5552         VAR is a tag, not its type tag.
5553
5554 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
5555
5556         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
5557         alternatives to match style of other entries.
5558         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
5559
5560 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
5561
5562         PR tree-optimization/25771
5563         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
5564         SSA_NAMES.
5565
5566 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
5567
5568         PR tree-opt/24365
5569         * tree-inline.c (declare_return_variable): If the return variable
5570         was marked as a non gimple complex, set the return slot variable
5571         to be a non gimple comple variable.
5572
5573 2006-01-13  Richard Guenther  <rguenther@suse.de>
5574
5575         * builtins.c (expand_builtin_sincos): New function.
5576         (expand_builtin_mathfn_3): Remove dead code, sin and cos
5577         do not set errno.
5578         (expand_builtin): Expand sincos using expand_builtin_sincos.
5579
5580 2006-01-12  DJ Delorie  <dj@redhat.com>
5581
5582         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
5583         shift counts, separate SI shifts for m32c vs m16c, pass shift type
5584         so that constant shifts can be split.
5585         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
5586         (m32c_valid_pointer_mode): Make static.
5587         (shift_gen_func_for): New.
5588         (m32c_prepare_shift): Use it.  Split large const shifts into
5589         multiple shifts.
5590         * config/m32c/predicates.md (shiftcount_operand): Allow more
5591         general operands.
5592         (longshiftcount_operand): New.
5593         * doc/md.texi (Machine Constraints): Document In6.
5594
5595 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5596
5597         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
5598         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
5599         documentation.
5600
5601 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
5602
5603         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
5604         to try to avoid clobbering pieces of structures when we know
5605         something about the whole structure.
5606         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
5607
5608 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5609
5610         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
5611         return in memory, as this is no limitation is no longer present.
5612
5613 2006-01-12  DJ Delorie  <dj@redhat.com>
5614
5615         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
5616         mova with fb, and for fb+0 -> An.
5617
5618         * config/m32c/mov.md (peephole2): Fix enabling logic.
5619
5620         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
5621         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
5622         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
5623         FINI_ARRAY_SECTION_ASM_OP): Define.
5624
5625         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
5626         variable.
5627         (m32c_legitimize_reload_address): New logic to reload FB to An.
5628         (m32c_output_reg_push): Add newline.
5629         (m32c_output_reg_pop): Likewise.
5630
5631 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
5632
5633         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
5634
5635 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
5636
5637         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
5638
5639 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5640
5641         * config/sh/predicates.md (sh_rep_vec): Add parallel to
5642         match_code.
5643
5644 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5645
5646         * rtlanal.c (find_reg_note): Assert insn is not null.
5647
5648 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5649
5650         * df-scan.c (df_hard_reg_init): Move declaration of i outside
5651         ifdef.
5652
5653 2006-01-11  Jeff Law  <law@redhat.com>
5654
5655         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
5656         hold edge pairs.
5657         (mark_threaded_blocks, register_jump_thread): New functions.
5658         (thread_through_all_blocks): Remove unwanted argument.  No
5659         longer rely on e->aux to communicate thread target info.
5660         Call mark_threaded_blocks.  Release the threaded_blocks
5661         bitmap and threaded_edges vector when complete.
5662         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
5663         (threaded_blocks): Remove.
5664         (tree_ssa_dominator_optimize): Remove initialization and
5665         finalization of threaded_blocks.  Simplify call to
5666         thread_through_all_blocks.
5667         (thread_across_edge): Call register_jump_thread rather than
5668         storing thread information into e->aux.
5669         (free_all_edge_infos): Simplify now that e->aux is no longer
5670         used to communicate with thread_through_all_blocks.
5671         * tree-flow.h (thread_through_all_blocks): Update prototype.
5672         (register_jump_thread): Prototype.
5673
5674 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5675
5676         * df-core.c (df_compact_blocks, df_bb_replace): Use
5677         SET_BASIC_BLOCK instead of BASIC_BLOCK.
5678
5679 2006-01-11  Richard Guenther  <rguenther@suse.de>
5680
5681         PR tree-optimization/25734
5682         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
5683         stop propagation after successful propagation to the LHS.
5684
5685 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5686
5687         * basic-block.h (control_flow_graph): Change the type of
5688         x_basic_block_info to VEC(basic_block,gc) *.
5689         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
5690         basic_block_info.
5691         (SET_BASIC_BLOCK): New.
5692         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
5693         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
5694         * cfgbuild.c (find_basic_blocks): Likewise.
5695         * cfglayout.c (fixup_reorder_chain): Likewise.
5696         * cfgrtl.c (create_basic_block_structure,
5697         rtl_create_basic_block): Likewise.
5698         * ifcvt.c (find_if_case_1): Likewise.
5699         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
5700         Likewise.
5701
5702 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5703
5704         * Makefile.in: Removed rotted odf.c entry.
5705
5706 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
5707
5708         PR target/25706
5709         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
5710         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
5711         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
5712         output pattern modifier, not %e.
5713         * config/cris/cris.c (cris_op_str): Update comment about pattern
5714         modifier.
5715         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
5716         before falling through into...
5717         <case 'E'>: Redefined from old 'e' case.
5718
5719 2006-01-11  Jan Hubicka  <jh@suse.cz>
5720
5721         PR target/25042
5722         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
5723
5724 2006-01-11  Jan Hubicka  <jh@suse.cz>
5725
5726         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
5727         * i386.c (x86_decompose_lea): Kill.
5728         (ix86_rtx_costs): Kill.
5729
5730 2006-01-11  Jan Hubicka  <jh@suse.cz>
5731
5732         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
5733         * cgraph.h (cgraph_node): Add inline_decl.
5734         (cgraph_insert_node_to_hashtable): Declare.
5735         (save_inline_function_body): Declare.
5736         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
5737         clones.
5738         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
5739         (cgraph_function_versioning): Update call of tree_function_versioning.
5740         (save_inline_function_body): New function.
5741         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
5742         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
5743         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
5744         (cgraph_default_inline_p): Likewise.
5745         (cgraph_decide_inlining_incrementally): Likewise.
5746         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
5747         (copy_bb): Kill saving; do updating of clones.
5748         (copy_cfg_body): Kill saving.
5749         (initialize_inlined-parameters): Likewise.
5750         (expand_call_inline): Likewise.
5751         (save_body): Kill.
5752         (tree_function_versioning): New parameter "update_clones".
5753         (inlining_p): Kill saving.
5754         * tree-inline.h (tree_function_versioning): Update prototype.
5755         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
5756         saving.
5757
5758 2006-01-11  Ian Lance Taylor <ian@airs.com>
5759
5760         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
5761         Allow undoing set of machine mode.
5762         (do_SUBST): Use enums instead of is_int.
5763         (do_SUBST_MODE): New function.
5764         (SUBST_MODE): New macro.
5765         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
5766         reg and trying to replace reg_regno_rtx with a new register.
5767         (undo_all): Use new enums, handle undoing a PUT_MODE change.
5768         (simplify_set): Use SUBST_MODE.
5769         (distribute_notes): Remove code that tried to update reg notes
5770         for regno_reg_rtx changes.
5771
5772 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
5773
5774         PR tree-optimization/23109
5775         PR tree-optimization/23948
5776         PR tree-optimization/24123
5777
5778         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
5779         * tree-cfg.c (single_noncomplex_succ): New.
5780         * tree-flow.h (single_noncomplex_succ): Declare it.
5781         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5782         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5783         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
5784         insert_bb, register_division_in, insert_reciprocals,
5785         replace_reciprocal, free_bb): New.
5786         (execute_cse_reciprocals_1): Rewritten.
5787         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
5788         Do not commit any edge insertion.  Always compute dominators and
5789         create the allocation pool.
5790         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
5791         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
5792         * targhooks.c (default_min_divistions_for_recip_mul): New.
5793         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
5794         * passes.c (init_optimization_passes): Run recip after tree loop
5795         optimizations.
5796         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
5797
5798 2006-01-11  Danny Berlin <dberlin@dberlin.org>
5799             Kenneth Zadeck <zadeck@naturalbridge.com>
5800
5801         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
5802         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
5803         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
5804         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
5805         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
5806         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
5807         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
5808         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
5809         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
5810         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
5811         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
5812         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
5813         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
5814         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
5815         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
5816         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
5817         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
5818         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
5819         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
5820         DF_SCAN_POST_ALLOC): New macros.
5821         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
5822         df_free_bb_function, df_local_compute_function, df_init_function,
5823         df_dataflow_function, df_confluence_function_0,
5824         df_confluence_function_n, df_transfer_function,
5825         df_finalizer_function, df_free_function, df_dump_problem_function,
5826         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
5827         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
5828         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
5829         df_urec_bb_info, ) New types.
5830         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
5831         variables.
5832         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
5833         df_analyze_simple_change_some_blocks,
5834         df_analyze_simple_change_one_block, df_compact_blocks,
5835         df_bb_replace, df_bb_regno_last_use_find,
5836         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
5837         df_insn_regno_def_p, df_find_def, df_find_use,
5838         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
5839         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
5840         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
5841         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
5842         debug_df_chain, df_get_dependent_problem, df_chain_create,
5843         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
5844         df_grow_bb_info, df_chain_dump, df_print_bb_index,
5845         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
5846         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
5847         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
5848         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
5849         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
5850         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
5851         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
5852         df_ref_remove, df_insn_refs_delete, df_refs_delete,
5853         df_reorganize_refs, df_set_state, df_hard_reg_init,
5854         df_read_modify_subreg_p) New public functions.
5855         * df-core.c: The core dataflow solver and glue routines for rtl
5856         dataflow.
5857         (df_init, df_add_problem, df_set_blocks, df_finish,
5858         df_hybrid_search_forward, df_hybrid_search_backward,
5859         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
5860         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
5861         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
5862         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
5863         df_reg_defined, df_find_use, df_reg_used, df_dump,
5864         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
5865         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
5866         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
5867         debug_df_useno, reset_df_after_reload): New functions.
5868         * df-scan.c: The scanning fuctions, once in df.c, completely
5869         rewritten so that they now fully model the functionality of
5870         register usage at the backend.
5871         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
5872         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
5873         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
5874         df_grow_insn_info, df_rescan_blocks, df_ref_create,
5875         df_get_artificial_defs, df_get_artificial_uses,
5876         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
5877         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
5878         df_refs_delete, df_reorganize_refs, df_set_state,
5879         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
5880         df_def_record_1, df_defs_record, df_uses_record,
5881         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
5882         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
5883         df_record_exit_block_uses, df_hard_reg_init): New functions.
5884
5885         * df-problems.c: Seven concrete dataflow problems that use the
5886         scanning in df-scan.c and are solved by the engine in df-core.c.
5887         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
5888         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
5889         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
5890         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
5891         df_ru_free_bb_info, df_ru_alloc,
5892         df_ru_bb_local_compute_process_def,
5893         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
5894         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
5895         df_ru_transfer_function, df_ru_free, df_ru_dump,
5896         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
5897         df_rd_free_bb_info, df_rd_alloc,
5898         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
5899         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
5900         df_rd_transfer_function, df_rd_free, df_rd_dump,
5901         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
5902         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
5903         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
5904         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
5905         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
5906         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
5907         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
5908         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
5909         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
5910         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
5911         df_urec_mark_reg_change, df_urec_check_earlyclobber,
5912         df_urec_mark_reg_use_for_earlyclobber,
5913         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
5914         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
5915         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
5916         df_urec_dump, df_urec_add_problem, df_chain_alloc,
5917         df_chain_create_bb_process_use, df_chain_create_bb,
5918         df_chain_finalize, df_chain_free, df_chains_dump,
5919         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
5920         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
5921         df_reg_lifetime): New functions.
5922         * df.c: Deleted file.
5923         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
5924         consistent with new df api.
5925         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
5926         rest_of_handle_sms): Ditto.
5927         * web.c (unionfind_union, union_defs, entry_register, web_main):
5928         Ditto.
5929         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
5930         invariant_expr_equal_p, find_defs, check_dependencies,
5931         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
5932         free_inv_motion_data, move_loop_invariants): Ditto.
5933         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
5934         Update dependencies.
5935         (odf.c): Added defective entry that was deleted later in day.
5936         * sched-deps.c (sched_analyze_1): Ditto.
5937
5938 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
5939
5940         * tree-ssa-operands.c (get_expr_operands): Record addressable
5941         variables directly.  Do not call add_stmt_operands for CONST_DECLs
5942         and ARRAY_DECLs.
5943         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
5944         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
5945
5946 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5947
5948         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
5949         function returns true in the positive case.
5950
5951 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5952
5953         PR target/20754
5954         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
5955         for SI, DI, SF and DF modes.  Add alternatives to copy between
5956         general and floating point registers to the 32-bit patterns.
5957         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
5958         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
5959         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
5960         generating 64-bit code.
5961         * config/pa/pa.c (output_move_double): Handle copies between general
5962         and floating registers.
5963
5964 2006-01-10  Stuart Hastings  <stuart@apple.com>
5965
5966         * config/i386/i386.md (set_got): Update.
5967         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
5968         (builtin_setjmp_receiver): Mach-O support.
5969         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
5970         (GOT_SYMBOL_NAME): Define.
5971         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
5972         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
5973         * config/i386/i386.c (override_options): Revise for Darwin.
5974         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
5975         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
5976         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
5977         * config/i386/i386-protos.h (output_set_got): Likewise.
5978         * config/darwin.c (machopic_legitimize_pic_address): Update
5979         regs_ever_live[].
5980
5981 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
5982
5983         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
5984         when MODE isn't BLKmode.
5985
5986 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
5987
5988         PR rtl-optimization/25367
5989         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
5990
5991 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
5992
5993         PR target/25718
5994         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
5995         for a negative bound.
5996
5997 2006-01-10  Richard Guenther  <rguenther@suse.de>
5998
5999         * tree-ssa-structalias.c (get_constraint_for_component_ref):
6000         Never override with anything constraint.
6001
6002 2006-01-10  Jan Beulich  <jbeulich@novell.com>
6003
6004         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
6005         256 bits when optimize_size.
6006
6007 2006-01-10  Jan Beulich  <jbeulich@novell.com>
6008
6009         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
6010         MASK_ALIGN_DOUBLE.
6011         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
6012         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
6013         arguments.
6014
6015 2006-01-10  Ben Elliston  <bje@au.ibm.com>
6016
6017         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
6018         float modes.
6019         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
6020         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
6021         (USE_FP_FOR_ARG): Reject decimal float modes.
6022         (function_arg_advance): Likewise.
6023         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
6024         (rs6000_handle_altivec_attribute): Do not permit decimal floating
6025         point types in AltiVec vectors.
6026         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
6027         (rs6000_libcall_value): Likewise.
6028
6029 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
6030
6031         * config/xtensa/ieee754-df.S: New file.
6032         * config/xtensa/ieee754-sf.S: New file.
6033         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
6034         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
6035         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
6036
6037 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
6038
6039         * config/sh/predicates.md (binary_float_operator,
6040         binary_logical_operator, commutative_float_operator,
6041         equality_comparison_operator, greater_comparison_operator,
6042         less_comparison_operator, logical_operator,
6043         noncommutative_float_operator, shift_operator,
6044         symbol_ref_operand, unary_float_operator): Remove redundant
6045         conditionals.
6046
6047 2006-01-09  Jeff Law  <law@redhat.com>
6048
6049         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
6050         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
6051         now unused arguments.  Callers updated.
6052         (eliminate_redundant_computations): Remove now unused arguments,
6053         callers updated.
6054         (local_fold): Remove, no longer used.
6055         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
6056         and moved to...
6057         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
6058         (simplify_cond): New function.
6059         (forward_propagate_into_cond): Call simplify_cond.
6060
6061 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
6062
6063         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
6064         (*vec_extractv2di_1_sse): New.
6065
6066 2006-01-09  Ben Elliston  <bje@au.ibm.com>
6067
6068         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
6069
6070 2006-01-08  Richard Guenther  <rguenther@suse.de>
6071
6072         * tree-ssa-structalias.c (get_constraint_for): Remove
6073         anyoffset argument.
6074         (get_constraint_for_component_ref): Likewise.
6075         (do_deref): Likewise.
6076         (get_constraint_for): Likewise.
6077         (do_structure_copy): Likewise.
6078         (handle_ptr_arith): Likewise.
6079         (find_func_aliases): Likewise.  Remove unused need_anyoffset
6080         variable.
6081
6082 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
6083             Kaz Kojima  <kkojima@gcc.gnu.org>
6084
6085         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
6086         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
6087         (EXTRA_CONSTRAINT_C16): Remove.
6088         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
6089         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
6090         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
6091         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
6092         constants of SHmedia.  Handle nested constant expressions of
6093         SHmedia correctly.
6094         (andcosts): Fix the costs for SHmedia constants.
6095         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
6096         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
6097         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
6098         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
6099         (movv4hi_i, movv2si_i): Likewise.
6100         (movsi_const): Adjust the second operand of ior so to match with
6101         the Csu constraint.
6102         (movdi_const, movdi_const_32bit): Likewise.
6103         (movdi_const_16bit+1): Don't sign-extend LOW.
6104         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
6105         step.
6106         (*double_shori): Fix the split condition.  Use GEN_INT instead
6107         of get_int_mode calls.  Mask lower 16-bit of the argument of
6108         the last GEN_INT.
6109         (sym2GOTPLT): Remove.
6110         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
6111         gen_rtx_UNSPEC.
6112         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
6113         instead of EXTRA_CONSTRAINT_C16.
6114
6115 2006-01-07  Ian Lance Taylor  <ian@airs.com>
6116             David Edelsohn  <edelsohn@gnu.org>
6117
6118         PR rtl-optimization/25662
6119         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
6120         for constant operands instead of simplify_gen_binary.
6121         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
6122         after trying simplify_binary_operation
6123
6124 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
6125
6126         * tree.c (iterative_hash_expr): Hash decls based on UID.
6127
6128 2006-01-06  Eric Christopher  <echristo@apple.com>
6129
6130         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
6131         (TARGET_UNWIND_EMIT): Fix spelling.
6132         * target.h (gcc_target): Add except_table_label.
6133         * except.c (output_function_exception_table): Use.
6134         * varasm.c (default_emit_except_table_label): New.
6135         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
6136         define.
6137         (asm_out): Add here.
6138         * output.h (default_emit_except_table_label): Prototype.
6139         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
6140         * config/darwin.c (darwin_emit_except_table_label): Define.
6141         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
6142
6143 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
6144
6145         PR tree-optimization/18527
6146         * tree-ssa-loop-niter.c (number_of_iterations_cond,
6147         number_of_iterations_special, number_of_iterations_exit):
6148         Move base and step of an iv to a single structure.  Add
6149         no_overflow flag, and use it in # of iterations analysis.
6150         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
6151         folded_casts argument.
6152         (simple_iv): Pass base and step in a structure.  Set no_overflow
6153         flag.
6154         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
6155         Evaluate expensiveness of computing # of iterations instead of
6156         the final expression.
6157         * tree-scalar-evolution.h (affine_iv): New structure.
6158         (simple_iv): Declaration changed.
6159         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
6160         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
6161         find_givs_in_stmt): Changed due to simple_iv change.
6162
6163 2006-01-06  Jeff Law  <law@redhat.com>
6164
6165         PR ada/24994
6166         * tree-cfg.c (bsi_replace): Rename final argument from
6167         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
6168         change (stmt -> orig_stmt).
6169         * tree-eh.c (verify_eh_throw_stmt_node): New function.
6170         (bsi_remove): Add new argument.  Remove EH information
6171         if requested.
6172         (verify_eh_throw_table_statements): New function.
6173         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
6174         updated.
6175         * tree-optimize.c (execute_free_cfg_annotations): Verify
6176         the EH throw statement table after removing annotations.
6177         * except.h (verify_eh_throw_table_statements): Prototype.
6178         * tree-flow.h (bsi_remove): Update prototype.
6179         * tree-vrp.c (remove_range_assertions): Add new argument to
6180         bsi_remove call.
6181         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
6182         * tree-complex.c (expand_complex_div_wide): Likewise.
6183         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
6184         * tree-tailcall.c (eliminate_tailcall): Likewise.
6185         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
6186         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
6187         * tree-nrv.c (tree_nrv): Likewise.
6188         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
6189         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
6190         (combine_blocks): Likewise.
6191         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
6192         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
6193         (cleanup_control_flow): Likewise.
6194         (remove_forwarder_block): Likewise.
6195         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
6196         * tree-sra.c (sra_replace): Likewise.
6197         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
6198         (forward_propagate_single_use_vars): Likewise.
6199         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
6200         * tree-inline.c (expand_call_inline): Likewise.
6201         * tree-vect-transform.c (vect_transform_loop): Likewise.
6202         * tree-outof-ssa.c (rewrite_trees): Likewise.
6203         * tree-cfg.c (make_goto_expr_edges): Likewise.
6204         (cleanup_dead_labels): Likewise.
6205         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
6206         (bsi_move_before, bsi_move_after): Likewise.
6207         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
6208         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
6209
6210 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
6211
6212         PR tree-opt/25528
6213         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
6214         and IMAGPART_EXPR.
6215         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
6216         on non gimple variables.  Also add checks at the top for decls and
6217         mtags.
6218         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
6219         complex types.
6220         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
6221         and IMAGPART_EXPR for creating MUST_DEFs.
6222         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
6223         and NAME_MEMORY_TAG separately from the DECLs.
6224
6225 2006-01-06  Richard Guenther  <rguenther@suse.de>
6226
6227         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
6228         annotation, if necessary.
6229         * tree-ssa-pre.c (create_expression_by_pieces): Remove
6230         redundant calls to update_stmt.
6231         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
6232         Likewise.
6233
6234 2006-01-05  Richard Henderson  <rth@redhat.com>
6235
6236         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
6237
6238 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6239
6240         * c-typeck.c: Update copyright date.
6241
6242 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6243
6244         * c-typeck.c (build_c_cast): Always warn when casting
6245         from a pointer to an integer of different size, even if
6246         the node was constant.
6247
6248 2006-01-05  Richard Guenther  <rguenther@suse.de>
6249
6250         PR tree-optimization/22555
6251         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
6252         if one structure field is an array.
6253         * tree-ssa-operands.c (get_expr_operands): Continue scanning
6254         operands even if we found a subvar, but ignore VOPs in this
6255         case.
6256         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
6257         for renaming.
6258         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
6259
6260 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
6261
6262         PR middle-end/24998
6263         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
6264
6265 2006-01-05  Richard Guenther  <rguenther@suse.de>
6266             Diego Novillo  <dnovillo@redhat.com>
6267
6268         * tree-pass.h (TODO_remove_unused_locals): Define.
6269         * gimple-low.c (expand_var_p, remove_useless_vars,
6270         pass_remove_useless_vars): Remove.  Update all users.
6271         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
6272         (remove_unused_locals): New function.
6273         * tree-flow.h (remove_unused_locals): Declare.
6274         * passes.c (execute_todo): Call remove_unused_locals if
6275         TODO_remove_unused_locals is set.
6276         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
6277         * tree-ssa-dce.c (pass_dce): Likewise.
6278         * tree-outof-ssa.c (pass_del_ssa): Likewise.
6279
6280 2006-01-05  Richard Guenther  <rguenther@suse.de>
6281
6282         * tree-flow.h (struct fieldoff): Decompose field to
6283         type, size and decl.
6284         * tree-ssa-alias.c (create_sft): Take type as parameter.
6285         (create_overlap_variables_for): Store type, size and decl
6286         in the fieldoff structure.
6287         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
6288         of struct fieldoff.
6289         (push_fields_onto_fieldstack): Likewise.
6290         (create_variable_info_for): Likewise.  Use offset for the
6291         SFT name if the decl is not available.
6292
6293 2006-01-04  Paul Brook  <paul@codesourcery.com>
6294
6295         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
6296
6297 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
6298
6299         * lambda-code.c (can_put_in_inner_loop): Relax
6300         restrictions.
6301         (can_put_after_inner_loop): New function.
6302         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
6303         (perfect_nestify): Change to make copies and modify uses.
6304
6305 2006-01-04  Richard Henderson  <rth@redhat.com>
6306
6307         Merge from gomp branch:
6308         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
6309         via integer constant.
6310         (pragma_lex): Remove.
6311         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
6312         rather than parsing it.
6313         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
6314         handle_pragma_extern_prefix): Add %< %> quotes.
6315         (registered_pragmas): New.
6316         (c_register_pragma_1): New.
6317         (c_register_pragma): Use it.
6318         (c_register_pragma_with_expansion): Likewise.
6319         (c_invoke_pragma_handler): New.
6320         (init_pragma): Use cpp_register_deferred_pragma directly for
6321         pch_preprocess.
6322         * c-pragma.h (enum pragma_kind): New.
6323         (pragma_handler): New.
6324         (c_invoke_pragma_handler): Declare.
6325         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
6326         CPP_PRAGMA_EOL.
6327         * c-common.h (c_common_pch_pragma): Update decl.
6328         * Makefile.in (c-parser.o): Update dependencies.
6329         (GTFILES): Add c-pragma.h.
6330         * c-parser.c (struct c_token): Add pragma_kind.
6331         (struct c_parser): Add in_pragma.
6332         (c_lex_one_token): Always initialize keyword and pragma_kind.
6333         Extract data for CPP_PRAGMA.
6334         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
6335         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
6336         Don't allow CPP_PRAGMA_EOL if in_pragma.
6337         (c_parser_consume_pragma): New.
6338         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
6339         (c_parser_skip_to_end_of_parameter): Likewise.
6340         (c_parser_skip_to_end_of_block_or_statement): Likewise.
6341         (c_parser_skip_to_pragma_eol): New.
6342         (c_parser_external_declaration): Handle CPP_PRAGMA.
6343         (c_parser_compound_statement_nostart): Likewise.
6344         (c_parser_statement_after_labels): Likewise.
6345         (c_parser_pragma): New.
6346         (pragma_lex): Likewise.
6347         (c_parser_pragma_pch_preprocess): New.
6348         (c_parser_new): Merge into ...
6349         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
6350
6351 2006-01-04  Jeff Law  <law@redhat.com>
6352
6353         PR ada/24994
6354         * tree-cfg.c (bsi_replace): Remove the original statement
6355         from the EH throw statement table.
6356
6357 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
6358
6359         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
6360         make the prototype extern "C" and add throw ().
6361
6362         PR target/25554
6363         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
6364         and pos non-negative and pos + len <= 32.
6365         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
6366         drop pos + len < HOST_BITS_PER_WIDE_INT test.
6367         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
6368
6369         PR c/25559
6370         * c-common.c (handle_vector_size_attribute): Reject zero vector size
6371         as well as sizes not multiple of component size.
6372
6373         PR debug/25562
6374         * function.c (instantiate_expr): New function.
6375         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
6376         walk its DECL_VALUE_EXPR with instantiate_expr.
6377
6378         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
6379         DW_OP_deref{,_size} if address isn't going to be added.
6380
6381 2006-01-04  Ben Elliston  <bje@au.ibm.com>
6382
6383         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
6384         * config/fp-bit.c: Likewise.
6385
6386 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
6387
6388         * dominance.c: Add comment about why we use DFS numbering
6389         of dominance tree.
6390
6391 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6392             Richard Henderson  <rth@redhat.com>
6393
6394         Merge from gomp-branch:
6395         * varasm.c (assemble_variable): Handle thread-local COMMON data.
6396         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
6397
6398 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
6399
6400         PR rtl-optimization/25578
6401         * combine.c (combine_simplify_rtx, force_to_mode): Don't
6402         pass a parameter to simplify_shift_const if changing ASHIFTRT
6403         to LSHIFTRT.
6404
6405 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
6406
6407         * builtins.c (get_builtin_sync_mem): New function.
6408         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
6409         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
6410         Call get_builtin_sync_mem to generate mem rtx.
6411
6412 2006-01-03  Richard Guenther  <rguenther@suse.de>
6413
6414         PR c/25183
6415         * stmt.c (add_case_node): Make sure to clear overflow flags
6416         from ranges.
6417
6418 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6419
6420         Merge from gomp-branch.
6421         * config/sparc/sync.md: New file.
6422         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
6423         UNSPECV_LDSTUB): New constants.
6424         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
6425         * config/sparc/predicates.md (memory_reg_operand): New predicate.
6426         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
6427         prototype.
6428
6429 2006-01-03  Roger Sayle  <roger@eyesopen.com>
6430
6431         * combine.c (reg_subword_p): New predicate to test whether the
6432         destination of a set refers to a subword/piece of a register.
6433         (try_combine): Generalize the code to merge the setting of a
6434         pseudo to a constant followed by a set of a subword of that
6435         register to a constant.
6436
6437 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
6438
6439         * basic-block.h (control_flow_graph): Change the type of
6440         x_label_to_block_map to VEC(basic_block,gc) *.
6441         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
6442         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
6443
6444         * tree-ssa-propagate.c (cfg_blocks): Change the type to
6445         VEC(basic_block,heap) *.
6446         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
6447         ssa_prop_fini): Adjust the uses of cfg_blocks.
6448
6449 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
6450
6451         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
6452         COMPONENT_REFs.
6453         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
6454         hashing trees instead of a pointer hash.
6455         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
6456         compare for MEM_EXPR.
6457
6458         PR rtl-optimization/25130
6459         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
6460         when comparing MEMs for GCSE
6461
6462 2006-01-03  Ben Elliston  <bje@au.ibm.com>
6463
6464         * targhooks.h (default_decimal_float_supported_p): Declare.
6465         * targhooks.c (default_decimal_float_supported_p): Define.
6466         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
6467         `default_decimal_float_supported_p'.
6468         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
6469
6470 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
6471
6472         * combine.c (apply_distributive_law <SUBREG>): Check
6473         TRULY_NOOP_TRUNCATION.
6474
6475 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
6476
6477         * dwarf2out.c (have_switched_text_section): Delete.
6478         (have_multiple_function_sections): New.
6479         (have_location_lists): Make 'bool'.
6480         (add_AT_loc_list): Use 'true' not '1'.
6481         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
6482         (output_loc_list): Use have_multiple_function_sections.
6483         (output_ranges): Likewise.
6484         (dwarf2out_begin_function): Set have_multiple_function_sections if
6485         necessary.
6486         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
6487         Check function_section rather than DECL_SECTION_NAME.
6488         (dwarf2out_finish): Use have_multiple_function_sections.
6489         Don't clear have_location_lists.
6490
6491 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
6492             Jan Hubicka  <jh@suse.cz>
6493
6494         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
6495         case of conditional jump jumping to the next instruction.
6496         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
6497         cases of conditional jump jumping to the next instruction.
6498
6499 2006-01-02  Jan Hubicka  <jh@suse.cz>
6500
6501         * i386.c (*_cost): Add COSTS_N_INSNS.
6502         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
6503
6504 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
6505
6506         PR target/25259
6507         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
6508
6509 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
6510
6511         * config/arm/arm.c (all_fpus): Fix comment typo.
6512         * config/darwin.c: Likewise.
6513         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
6514         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
6515         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
6516
6517 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
6518
6519         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
6520         (rs6000_split_compare_and_swapqhi): New.
6521         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
6522         (sync_compare_and_swapqhi_internal): New.
6523         * config/rs6000/rs6000-protos.h: Declare.