OSDN Git Service

2006-03-08 Paolo Bonzini <bonzini@gnu.org>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
2
3         PR bootstrap/26500
4         * Makefile.in (dvi, html, install-info): Invoke the corresponding
5         language hook targets.
6         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
7         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
8         if language hook targets were missing.
9
10 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
11
12         * tree-ssa-opfinalize.h: Removed.
13         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
14         dependency.
15         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
16         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
17         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
18         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
19         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
20         finalize_ssa_v_must_def_ops): New.
21
22 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
23
24         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
25         block as parameter.
26
27 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
28
29         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
30
31         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
32         addresses with offsets; reorganize.
33
34         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
35         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
36         (expand_builtin_init_dwarf_reg_sizes): Likewise.
37
38 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
39
40         PR target/26588
41         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
42
43 2006-03-08  Ben Elliston  <bje@au.ibm.com>
44
45         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
46
47 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
48
49         PR gomp/26238
50         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
51         expansion.
52
53 2006-03-07  Richard Guenther  <rguenther@suse.de>
54
55         PR tree-optimization/26587
56         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
57
58 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
59
60         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
61
62 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
63
64         * hooks.c (hook_bool_mode_rtx_true): New function.
65         * hooks.h (hook_bool_mode_rtx_true): Declare.
66         * toplev.c (compile_file): Call output_shared_constant_pool.
67         * varasm.c (shared_constant_pool): New variable.
68         (assemble_start_function, assemble_end_function): Remove arguments
69         from call to output_constant_pool.
70         (create_constant_pool): New function, split out from...
71         (init_varasm_status): ...here.
72         (force_const_mem): Choose between the shared and per-function constant
73         pools.  Set current_function_uses_const_pool when reusing old entries
74         as well as when creating new ones.
75         (mark_constant): Ignore data argument.
76         (mark_constants): Remove pool argument.
77         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
78         to decide whether the function uses a constant pool.
79         (output_constant_pool_contents): New function, split out from...
80         (output_constant_pool): ...here.
81         (output_shared_constant_pool): New function.
82         (init_varasm_once): Initialize shared_constant_pool.
83         * output.h (output_constant_pool): Delete.
84         (output_shared_constant_pool): Declare.
85         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
86         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
87
88 2006-03-06  Nick Clifton  <nickc@redhat.com>
89
90         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
91         flag_strength_reduce.
92
93 2006-03-06  Ben Elliston  <bje@au.ibm.com>
94
95         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
96         x86_64-*-linux* configurations.
97
98         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
99         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
100
101 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
102
103         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
104         Remove.
105         * basic-block.h: Remove the extern for
106         rediscover_loops_after_threading.
107
108         * cfgloop.c (cancel_loop): Make it static.
109         * cfgloop.h: Remove the prototype for cancel_loop.
110
111         * flow.c (recompute_reg_usage): Make it static.
112         * rtl.h: Remove the prototype for recompute_reg_usage.
113
114         * function.c (use_return_register): Make it static.
115         * function.h: Remove the prototype.
116
117 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
118
119         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
120         Remove.
121         * recog.h: Remove the prototype for
122         validate_change_maybe_volatile.
123
124 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
125
126         * rtlanal.c (replace_reg): Remove.
127         * rtl.h: Remove the prototype for replace_reg.
128
129 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
130
131         * regclass.c (reg_scan_update): Remove.
132         (reg_scan_mark_refs): Remove the last argument.
133         * rtl.h: Remove the prototype for reg_scan_update.
134
135 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
136
137         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
138         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
139         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
140         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
141         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
142         loop-invariant.c, omp-low.c, opts.c, passes.c,
143         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
144         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
145         tree-ssa-structalias.c, tree-ssa-threadedge.c,
146         tree-ssa-threadupdate.c, tree-vect-patterns.c,
147         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
148         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
149
150 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
151
152         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
153         * dwarf2out.h: Remove the prototype for
154         dwarf2out_add_library_unit_info.
155
156 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
157
158         * tree.c (add_var_to_bind_expr): Remove.
159         * tree.h: Remove the prototype for add_var_to_bind_expr.
160
161 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
162
163         * regclass.c (n_non_fixed_regs): Remove.
164         (init_reg_sets_1, globalize_reg): Remove all uses of
165         n_non_fixed_regs.
166         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
167
168 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
169
170         * rtlanal.c (insns_safe_to_move_p): Remove.
171         * rtl.h: Remove the prototype for insns_safe_to_move_p.
172
173 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
174
175         * expmed.c (expand_mult_add): Remove.
176         * expr.h: Remove the prototype for expand_mult_add.
177
178 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
179
180         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
181         and REG_SAVED_VAL_EXP constants.
182         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
183         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
184         Handle regs stored by value.
185         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
186         (execute_cfa_program): Handle DW_CFA_val_offset,
187         DW_CFA_val_offset_sf and DW_CFA_val_expression.
188         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
189         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
190         (uw_install_context_1): Handle target regs stored by value.
191
192 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
193
194         * tree-sra.c (tree_sra): Return todoflags;
195         (generate_one_element): Set TODO_update_smt_usage if needed.
196         (pass_sra): Remove TODO_update_smt_usage.
197         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
198         parameter.
199         (tree_ssa_forward_propagate_single_use_vars): Return
200         TODO_update_smt_usage if we need to update SMT usage.
201         (pass_forwprop): Remove TODO_update_smt_usage.
202         
203 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
204
205         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
206         (correct_use_link): Remove reference to get_stmt_operands.
207         (update_stmt_operands): Likewise.
208         (get_modify_expr_operands): New function factored out of
209         parse_ssa_operands and get_expr_operands.
210         Try to create V_MUST_DEFs for LHS by default.
211         (get_expr_operands) <case MODIFY_EXPR>: Call
212         get_modify_expr_operands.
213         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
214         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
215         (parse_ssa_operands) <case MODIFY_EXPR>: Call
216         get_modify_expr_operands.
217
218 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
219
220         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
221         * tree-flow.h: Remove the prototype for
222         referenced_var_lookup_if_exists.
223
224 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
225
226         PR rtl-optimization/26345
227         PR target/19061
228         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
229
230 2006-03-03  Roger Sayle  <roger@eyesopen.com>
231
232         PR tree-optimization/26524
233         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
234         fold_convert to create a constant of the appropriate type.
235
236 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
237
238         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
239         SYMBOL_REF_IN_BLOCK_P.
240         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
241         of SYMBOL_FLAG_IN_BLOCK.
242         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
243         instead of SYMBOL_REF_IN_BLOCK_P.
244         * explow.c (use_anchored_address): Likewise.
245         * rtl.c (rtx_size): Likewise.
246         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
247         instead of SYMBOL_FLAG_IN_BLOCK.
248         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
249         SYMBOL_REF_IN_BLOCK_P.
250         (assemble_variable): Likewise.
251         (output_constant_def_contents): Likewise.
252         (output_constant_pool): Likewise.
253         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
254         instead of SYMBOL_FLAG_IN_BLOCK.
255         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
256         SYMBOL_REF_IN_BLOCK_P.
257         (SYMBOL_REF_BLOCK): Likewise.
258         (SYMBOL_REF_OFFSET): Likewise.
259         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
260         SYMBOL_REF_IN_BLOCK_P.
261         (SYMBOL_FLAG_IN_BLOCK): Replace with...
262         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
263         (SYMBOL_REF_IN_BLOCK_P): Replace with...
264         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
265
266 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
267
268         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
269
270 2006-03-02  Roger Sayle  <roger@eyesopen.com>
271
272         * simplify-rtx.c (simplify_unary_operation): When simplifying
273         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
274         that we perform the right shift in the appropriate mode, and
275         then extend or truncate the result to requested mode.
276
277 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
278
279         * gengtype.c (main): Handle double_int type.
280         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
281         * double-int.c: New file.
282         * double-int.h: New file.
283         * system.h: Include doubleint.h.
284         * Makefile.in (SYSTEM_H): Include double-int.h.
285         (double-int.o): Add.
286
287 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
288
289         PR bootstrap/26478
290         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
291         copying over it.
292
293 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
294
295         * tree-vrp.c (remove_range_assertions): Do not update statements
296         unnecessarily.
297
298 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
299
300         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
301         cleanup.
302         * gcse.c (rest_of_handle_gcse): Ditto.
303         * except.c (gate_handle_eh): Ditto.
304         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
305         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
306
307 2006-03-02  Eric Christopher  <echristo@apple.com>
308
309         * config/i386/i386.c (machopic_output_stub): Add indirection to
310         jump.
311
312 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
313
314         * loop.c: Removed.
315
316 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
317
318         Sun Niagara specific optimizations.
319         * config.gcc: Recognize niagara as target.
320         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
321         (TARGET_CPU_niagara): Define.
322         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
323         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
324         (CPP_CPU_SPEC): Handle -mcpu=niagara.
325         (ASM_CPU_SPEC): Likewise.
326         (PROCESSOR_NIAGARA): New enum entry.
327         (REGISTER_MOVE_COST): Handle Niagara.
328         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
329         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
330         (sparc_override_options): Recognize "niagara", set appropriate
331         default MASK_* values for it, and align functions to 32-bytes
332         by default just like ULTRASPARC/ULTRASPARC3.
333         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
334         (sparc64_initialize_trampoline): Likewise.
335         (sparc_use_sched_lookahead): Use zero for niagara.
336         (sparc_issue_rate): Use one for niagara.
337         * config/sparc/niagara.md: New file.
338         * config/sparc/sparc.md: Include it.
339         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
340         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
341         when default cpu is niagara.
342         (CPP_CPU_SPEC): Handle -mcpu=niagara.
343         (ASM_CPU_SPEC): Likewise.
344         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
345         when default cpu is niagara.
346         (ASM_CPU_SPEC): Handle -mcpu=niagara.
347         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
348         just like v9/ultrasparc/ultrasparc3.
349         * doc/invoke.texi: Add documentation for "niagara" and improve
350         existing documentation for ultrasparc variants.
351
352 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
353
354         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
355
356 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
357
358         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
359         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
360         and say that only one is needed.
361         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
362         * target.h (have_switchable_bss_sections): New hook.
363         * explow.c (use_anchored_address): Check that the symbol is in a block.
364         * varasm.c (tls_comm_section, comm_section, lcomm_section)
365         (bss_noswitch_section): New variables.
366         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
367         (get_noswitch_section): New function.
368         (get_block_for_section): Allow SECT to be null.
369         (unlikely_text_section_p): Use SECTION_STYLE.
370         (bss_initializer_p): New function.
371         (get_variable_section): Move earlier in file.  Take a new argument,
372         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
373         Return one of the new *_sections in such cases.
374         (get_block_for_decl): New function, extracting some logic from
375         use_blocks_for_decl_p.
376         (change_symbol_section): Remove in favor of...
377         (change_symbol_block): ...this new function.
378         (use_blocks_for_decl_p): Remove checks now performed by
379         get_block_for_decl.
380         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
381         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
382         (emit_local, emit_bss, emit_common): ...these new functions.
383         Return true if the alignment was honored.
384         (emit_tls_common): New function.
385         (asm_emit_uninitialised): Delete.
386         (assemble_variable_noswitch): New function, split out from...
387         (assemble_variable): ...here.  Don't make decisions about common
388         variables here.  Globalize all public decls that go into non-common
389         sections.  Check whether SYMBOL_REF_BLOCK is null.
390         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
391         (output_constant_pool): Likewise.
392         (init_varasm_once): Initialize the new section variables.
393         (have_global_bss_p): New function.
394         (categorize_decl_for_section): Use bss_initializer_p.
395         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
396         (place_block_symbol): Assert that the symbol must be in a block.
397         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
398         (TARGET_INITIALIZER): Include it.
399         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
400         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
401         (SECTION_MACH_DEP): Bump by two.
402         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
403         (unnamed_section): Mention SECTION_UNNAMED in comment.
404         (named_section): Likewise SECTION_NAMED.
405         (noswitch_section_callback): New type.
406         (noswitch_section): New structure.
407         (section): Add a noswitch_section alternative.
408         (SECTION_STYLE): New macro.
409         (tls_comm_section, comm_section, lcomm_section): Declare.
410         (bss_noswitch_section, have_global_bss_p): Declare.
411         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
412         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
413         Override.
414         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
415         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
416         Override.
417
418 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
419
420         * gcc/tree-vrp.c (execute_vrp): Return value.
421         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
422         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
423         * gcc/tree-complex.c (tree_lower_complex): Ditto.
424         (tree_lower_complex_O0): Ditto.
425         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
426         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
427         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
428         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
429         (execute_tail_calls): Ditto.
430         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
431         * gcc/tree.h (init_function_for_compilation): Ditto.
432         * gcc/ipa-cp.c (ipcp_driver): Ditto.
433         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
434         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
435         * gcc/final.c (compute_alignments): Ditto.
436         (rest_of_handle_final): Ditto.
437         (rest_of_handle_shorten_branches): Ditto.
438         (rest_of_clean_state): Ditto.
439         * gcc/omp-low.c (execute_expand_omp): Ditto.
440         (execute_lower_omp): Ditto.
441         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
442         * gcc/ipa-reference.c (static_execute): Ditto.
443         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
444         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
445         (rest_of_handle_machine_reorg): Ditto.
446         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
447         * gcc/flow.c (recompute_reg_usage): Ditto.
448         (rest_of_handle_remove_death_notes): Ditto.
449         (rest_of_handle_life): Ditto.
450         (rest_of_handle_flow2): Ditto.
451         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
452         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
453         (do_ssa_store_ccp): Ditto.
454         (execute_fold_all_builtins): Ditto.
455         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
456         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
457         * gcc/ipa-pure-const.c (static_execute): Ditto.
458         * gcc/cse.c (rest_of_handle_cse): Ditto.
459         (rest_of_handle_cse2): Ditto.
460         * gcc/web.c (rest_of_handle_web): Ditto.
461         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
462         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
463         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
464         * gcc/tree-nrv.c (tree_nrv): Ditto.
465         (execute_return_slot_opt): Ditto.
466         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
467         (create_structure_vars): Ditto.
468         * gcc/loop-init.c (rtl_loop_init): Ditto.
469         (rtl_loop_done): Ditto.
470         (rtl_move_loop_invariants): Ditto.
471         (rtl_unswitch): Ditto.
472         (rtl_unroll_and_peel_loops): Ditto.
473         (rtl_doloop): Ditto.
474         * gcc/gimple-low.c (lower_function_body): Ditto.
475         (mark_used_blocks): Ditto.
476         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
477         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
478         (cgraph_early_inlining): Ditto.
479         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
480         * gcc/jump.c (cleanup_barriers): Ditto.
481         (purge_line_number_notes): Ditto.
482         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
483         (rest_of_handle_if_after_reload): Ditto.
484         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
485         (tree_ssa_loop_im): Ditto.
486         (tree_ssa_loop_unswitch): Ditto.
487         (tree_vectorize): Ditto.
488         (tree_linear_transform): Ditto.
489         (tree_ssa_loop_ivcanon): Ditto.
490         (tree_ssa_empty_loop): Ditto.
491         (tree_ssa_loop_bounds): Ditto.
492         (tree_complete_unroll): Ditto.
493         (tree_ssa_loop_prefetch): Ditto.
494         (tree_ssa_loop_ivopts): Ditto.
495         (tree_ssa_loop_done): Ditto.
496         * gcc/predict.c (tree_estimate_probability): Ditto.
497         * gcc/recog.c (split_all_insns_noflow): Ditto.
498         (rest_of_handle_peephole2): Ditto.
499         (rest_of_handle_split_all_insns): Ditto.
500         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
501         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
502         (rest_of_handle_stack_adjustments): Ditto.
503         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
504         * gcc/function.c (instantiate_virtual_regs): Ditto.
505         (init_function_for_compilation): Ditto.
506         (rest_of_handle_check_leaf_regs): Ditto.
507         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
508         (rest_of_handle_gcse): Ditto.
509         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
510         * gcc/alias.c (rest_of_handle_cfg): Ditto.
511         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
512         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
513         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
514         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
515         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
516         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
517         * gcc/except.c (set_nothrow_function_flags): Ditto.
518         (convert_to_eh_region_ranges): Ditto.
519         (rest_of_handle_eh): Ditto.
520         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
521         (remove_unnecessary_notes): Ditto.
522         * gcc/except.h (set_nothrow_function_flags): Ditto.
523         (convert_to_eh_region_ranges): Ditto.
524         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
525         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
526         * gcc/tree-ssa-pre.c (do_pre): Ditto.
527         (execute_fre): Ditto.
528         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
529         (rest_of_handle_jump2): Ditto.
530         * gcc/tree-sra.c (tree_sra): Ditto.
531         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
532         (execute_mudflap_function_decls): Ditto.
533         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
534         (do_store_copy_prop): Ditto.
535         * gcc/ipa-prop.h (ipcp_driver): Ditto.
536         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
537         * gcc/tree-ssa-forwprop.c
538         (tree_ssa_forward_propagate_single_use_vars): Ditto.
539         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
540         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
541         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
542         (execute_late_warn_uninitialized): Ditto.
543         * gcc/rtl.h (cleanup_barriers): Ditto.
544         (split_all_insns_noflow): Ditto.
545         (purge_line_number_notes): Ditto.
546         (unshare_all_rtl): Ditto.
547         (remove_unnecessary_notes): Ditto.
548         (recompute_reg_usage): Ditto.
549         (variable_tracking_main): Ditto.
550         * gcc/integrate.c (emit_initial_value_sets): Ditto.
551         * gcc/integrate.h (emit_initial_value_sets): Ditto.
552         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
553         (execute_free_cfg_annotations): Ditto.
554         (execute_fixup_cfg): Ditto.
555         (execute_cleanup_cfg_pre_ipa): Ditto.
556         (execute_cleanup_cfg_post_optimizing): Ditto.
557         (execute_init_datastructures): Ditto.
558         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
559         * gcc/combine.c (rest_of_handle_combine): Ditto.
560         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
561         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
562         (rest_of_handle_reorder_blocks): Ditto.
563         (rest_of_handle_partition_blocks): Ditto.
564         * gcc/var-tracking.c (variable_tracking_main): Ditto.
565         * gcc/tree-profile.c (tree_profiling): Ditto.
566         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
567         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
568         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
569         (rest_of_handle_sched2): Ditto.
570         * gcc/basic-block.h (free_bb_insn): Ditto.
571         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
572         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
573         (remove_useless_stmts): Ditto.
574         (split_critical_edges): Ditto.
575         (execute_warn_function_return): Ditto.
576         (execute_warn_function_noreturn): Ditto.
577         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
578         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
579         * gcc/passes.c (execute_one_pass): Run additional
580         todos returned by execute function.
581         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
582         return a value.
583
584 2006-03-02  Richard Guenther  <rguenther@suse.de>
585
586         * tree-ssa-alias.c (find_used_portions): Consider taking
587         the address as making the variable not write-only.
588
589 2006-03-02  Nick Clifton  <nickc@redhat.com>
590
591         * config.gcc (default_use_cxa_atexit): Extend the description of
592         this configure variable.  Set its default value to "yes" for
593         Linux, NetBSD and ELF targets on the assumption that they will
594         use C libraries with the __cxa_atexit function.
595
596 2006-03-02  Ben Elliston  <bje@au.ibm.com>
597
598         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
599         parameter as unused to suppress a build warning.
600
601 2006-03-02  Ben Elliston  <bje@au.ibm.com>
602
603         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
604         config/dfp-bit.c.
605
606 2006-03-01  Roger Sayle  <roger@eyesopen.com>
607
608         PR other/26489
609         * gthr-posix.h (__gthrw2): Define to take three parameters, the
610         declared name, the weak reference name, and the typeof name.
611         (__gthrw): Avoid expanding the declared name suffix.
612         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
613
614 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
615
616         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
617         from DWARF 3.
618         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
619         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
620         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
621         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
622         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
623         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
624         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
625         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
626         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
627         DW_DS_leading_separate, DW_DS_trailing_separate): New.
628         (DW_END_default, DW_END_big, DW_END_little): New.
629         (DW_END_lo_user, DW_END_hi_user): Define.
630         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
631         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
632         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
633         DW_LANG_D): New.
634
635 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
636
637         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
638         Update all users.
639         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
640         Update all users.
641         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
642         Update all users.
643         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
644         Update all users.
645         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
646         to 'symbol_mem_tag'.
647         Update all users.
648         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
649         rename.
650
651 2006-03-01  Roger Sayle  <roger@eyesopen.com>
652
653         * builtins.c (fold_builtin_copysign): Delete unreachable code.
654
655 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
656
657         PR target/25761
658         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
659         MACHO_DYNAMIC_NO_PIC_P.
660         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
661
662 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
663
664         PR target/26389
665         * config/darwin-protos.h (darwin_asm_output_anchor):
666         Declare.
667         * config/darwin-sections.def (cstring_section):
668         Add SECTION_MERGE to the flags.
669         (literal4_section): Likewise.
670         (literal8_section): Likewise.
671         (objc_selector_refs_section): Likewise.
672         (objc_cls_refs_section): Likewise.
673         * config/darwin.c (darwin_asm_output_anchor): New
674         function.
675         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
676
677 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
678
679         Fix PR tree-optimization/26443
680         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
681         to todo and PROP_tmt_usage to properties_destroyed.
682         * tree-ssa-ccp.c (pass_ccp): Ditto.
683         (pass_store_ccp): Ditto.
684         * tree-ssa-dom.c (pass_dominator): Ditto.
685
686 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
687
688         * tree-ssa-operands.c: Cleanup whitespace.
689         (get_asm_expr_operands): Move before first invocation.
690         (get_indirect_ref_operands): Likewise.
691         (get_tmr_operands): Likewise.
692         (get_call_expr_operands): Likewise.
693         (append_def): Likewise.
694         (append_use): Likewise.
695         (append_v_may_def): Likewise.
696         (append_v_must_def): Likewise.
697         (add_call_clobber_ops): Likewise.
698         (add_call_read_ops): Likewise.
699         (add_stmt_operand): Likewise.
700         (add_virtual_operand): Likewise.
701         (build_ssa_operands): Likewise.
702
703 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
704
705         PR middle-end/26022
706         Revert:
707         PR middle-end/24437
708         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
709         with a call expr to ...
710         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
711
712 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
713
714         * tree-vrp.c (extract_range_from_assert): Remove special
715         handling for types with super-types.
716
717 2006-03-01  Ben Elliston  <bje@au.ibm.com>
718
719         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
720         and powerpc64-*-linux* configurations.
721         * config/t-dfprules: New file.
722
723         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
724         Compile dfp-bit.c from the source directory using -DWIDTH and
725         $DFP_CFLAGS to control the compilation of that file, rather than
726         generating width-specific versions in the build directory.
727         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
728         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
729
730 2006-02-28  Zack Weinberg  <zackw@panix.com>
731
732         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
733         continues to work.
734
735 2006-02-28  Eric Christopher  <echristo@apple.com>
736
737         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
738         Set up IN_LIBGCC definition of TARGET_64BIT.
739         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
740
741 2006-02-28  Roger Sayle  <roger@eyesopen.com>
742
743         PR middle-end/14752
744         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
745         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
746         cases via the construction of "expr != 0".
747
748 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
749
750         * alias.c (alias_invariant, alias_invariant_size): Remove.
751         (record_base_value): Remove.
752         (memrefs_conflict_p): Don't look at alias_invariant.
753         (end_alias_analysis): Don't free it.
754         * alias.h (record_base_value): Remove prototype.
755
756 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
757             Adam Nemet  <anemet@caviumnetworks.com>
758
759         * rtl.h (truncated_to_mode): Declare it.
760         (struct rtl_hooks): Add reg_truncated_to_mode hook.
761         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
762         (RTL_HOOKS_INITIALIZER): Include it.
763         * rtlhooks.c (reg_truncated_to_mode_general): New function.
764         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
765         reg_truncated_to_mode.
766         * rtlanal.c (truncated_to_mode): Define it.
767         * simplify-rtx.c (simplify_unary_operation_1): Use it.
768
769 2006-02-28  Jeff Law  <law@redhat.com>
770
771         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
772         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
773         the range allowed by TYPE_PRECISION.
774
775         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
776
777 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
778
779         PR tree-optimization/26419
780         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
781         values of n.
782
783 2006-02-27  Zack Weinberg  <zackw@panix.com>
784
785         * doc/md.texi: Fix typo in previous change.
786
787 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
788
789         * df.c: Remove.
790
791 2006-02-27  Zack Weinberg  <zackw@panix.com>
792
793         * rtl.def (define_constraint, define_register_constraint)
794         (define_memory_constraint, define_address_constraint): New MD forms.
795         * gensupport.c (process_rtx): Put define_constraint etc on the
796         predicate queue.
797         * genpreds.c (process_define_predicate): Adjust comment.  Validate
798         the name, and call validate_exp to validate the expression.
799         (mark_mode_tests, write_extract_subexp): Can assume correct input.
800         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
801         all callers changed.
802         (validate_exp, needs_variable, struct constraint_data)
803         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
804         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
805         (const_dbl_constraints, constraint_max_namelen)
806         (have_register_constraints, have_memory_constraints)
807         (have_address_constraints, have_address_constraints)
808         (have_extra_constraints, have_const_int_constraints)
809         (have_const_dbl_constraints, mangle, add_constraint)
810         (process_define_constraint, process_define_register_constraint)
811         (write_enum_constraint_num, write_lookup_constraint)
812         (write_insn_constraint_len, write_regclass_for_constraint)
813         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
814         (write_insn_extra_memory_constraint)
815         (write_insn_extra_address_constraint)
816         (write_satisfies_constraint_fns): New.
817         (write_tm_preds_h): If we have new-style constraint definitions,
818         prototype the functions generated from them, and define the
819         old constraint interface (still used by generic code) in terms of
820         those functions.
821         (write_insn_preds_c): If we have new-style constraint definitions,
822         generate all relevant functions from those definitions.
823         (main): Handle define_constraint etc.
824         * genoutput.c (struct constraint_data, indep_constraints)
825         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
826         (mdep_constraint_len): New data structures and functions, defined
827         #ifdef USE_MD_CONSTRAINTS.
828         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
829         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
830         use new logic to validate operand constraints against constraint
831         definitions.
832         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
833         defined.
834         * defaults.h: If none of the old-style constraint macros are
835         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
836         old-style macros; and poison REG_CLASS_FROM_LETTER,
837         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
838         EXTRA_CONSTRAINT.
839         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
840         * doc/md.texi: Document new constraint-definition mechanism and the
841         C interface it provides.  Remove references to old mechanism
842         elsewhere in the document.
843         (Machine Constraints): Use pathnames relative to gcc directory,
844         i.e. config/ARCH/FILE.  Change i386 section to refer to
845         config/i386/predicates.md; update that section to match docstrings.
846         * doc/tm.texi: Move all documentation of the old constraint-
847         definition macros to their own section, clearly mark as obsolete.
848
849         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
850         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
851         definitions.
852         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
853         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
854         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
855         constraint strings.
856         (splits and peepholes): Use satisfies_constraint_*.
857         * config/i386/i386.c (memory_address_length)
858         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
859
860 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
861
862         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
863         scalar operation to be put back into the loop.
864
865 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
866
867         PR other/26208
868         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
869         (extract_cie_info): Handle S flag in augmentation string.
870         (execute_cfa_program): If context->signal_frame, execute also
871         fs->pc == context->ra instructions.
872         (uw_frame_state_for): If context->signal_frame, don't subtract one
873         from context->ra to find FDE.
874         (uw_update_context_1): Set context->signal_frame to
875         fs->signal_frame.
876         (_Unwind_GetIPInfo): New function.
877         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
878         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
879         of _Unwind_GetIP.
880         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
881         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
882         * unwind-compat.c (_Unwind_GetIPInfo): New function.
883         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
884         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
885         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
886         * config/i386/linux-unwind.h (x86_fallback_frame_state,
887         x86_64_fallback_frame_state): Set fs->signal_frame.
888         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
889         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
890         (frob_update_context): Likewise.  Workaround missing S flag in
891         Linux 2.6.12 - 2.6.16 kernel vDSOs.
892         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
893         Remove the psw_addr + 1 hack.
894
895 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
896
897         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
898         with aggregates here.
899         (find_func_aliases): Remove code for &<aggregate> from here.
900
901 2006-02-26  Roger Sayle  <roger@eyesopen.com>
902
903         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
904         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
905         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
906         as (X & C) ne/eq 0.
907
908 2006-02-26  Roger Sayle  <roger@eyesopen.com>
909
910         PR middle-end/19983
911         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
912
913 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
914
915         * opts.c (decode_options): Do not handle flag_strength_reduce.
916         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
917         and OPT_fstrength_reduce.
918         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
919         flag_prefetch_loop_arrays for being nonzero.
920         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
921         no-ops.
922         (fprefetch-loop-arrays-rtl): Removed.
923         (flag_prefetch_loop_arrays): Do not specify the value.
924
925         * doc/passes.texi: Update documentation of loop optimizer
926         passes.
927         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
928         -frerun-loop-opt): Remove.
929
930 2006-02-26  Richard Guenther  <rguenther@suse.de>
931
932         PR tree-optimization/26421
933         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
934         in function calls that are ADDR_EXPRs as using the whole structure.
935
936 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
937
938         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
939         * tree-pass.h (pass_loop_optimize): Remove.
940         * passes.c (pass_loop_optimize): Never run it.
941         * toplev.c (backend_init): Don't call init_loop.
942         * opts.c (flag_loop_optimize_set): Remove.
943         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
944         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
945         the old RTL loop optimizer when profiling enabled.
946         * predict.c (tree_estimate_probability): Always strip builtin_expect.
947         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
948         pre-headers for the sake of the old RTL loop optimizer.
949         * Makefile.in: Remove all references to loop.o.
950
951         * doc/invoke.texi: Remove all references to -floop-optimize
952         and -frerun-loop-opt.
953
954 2006-02-26  Zack Weinberg  <zackw@panix.com>
955
956         * doc/md.texi (Machine Constraints): Refer to all files with paths
957         relative to gcc directory (i.e. config/CPU/file).  Add missing
958         @table @code ... @end table to M32C subsection.
959
960 2006-02-26  Roger Sayle  <roger@eyesopen.com>
961
962         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
963         (X & 1) == 0.
964         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
965
966 2006-02-26  Roger Sayle  <roger@eyesopen.com>
967             James A. Morrison  <phython@gcc.gnu.org>
968
969         PR middle-end/21137
970         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
971         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
972         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
973         signedness of the shift operation.
974
975 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
976
977         PR tree-optimization/26359
978         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
979
980 2006-02-25  Roger Sayle  <roger@eyesopen.com>
981
982         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
983         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
984         as X == 0, and some symmetry related transformations.
985         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
986
987 2006-02-25  Roger Sayle  <roger@eyesopen.com>
988
989         PR middle-end/23673
990         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
991         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
992         symmetry related transformations.  Fold (X^C1) == C2 as
993         X == (C1^C2).
994
995 2006-02-25  Juergen Weigert  <jw@suse.de>
996         Richard Guenther  <rguenther@suse.de>
997
998         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
999
1000 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
1001
1002         * combine.c (gen_lowpart_or_truncate): Call
1003         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
1004
1005 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
1006
1007         * doc/invoke.texi: Move -fopenmp description to "Options for
1008         Code Generation".
1009         Remove reference to -lgomp.
1010
1011 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1012
1013         * doc/install.texi: Require GNU tar version 1.14.
1014
1015 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
1016
1017         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
1018         * doc/invoke.texi (C++ Dialect Options): Document
1019         -fno-use-cxa-get-exception-ptr.
1020         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
1021         * configure: Regenerate.
1022         * c.opt (fuse-cxa-get-exception-ptr): New.
1023         * c-opts.c (c_common_handle_option): Handle
1024         OPT_fuse_cxa_get_exception_ptr.
1025         * c-common.c (flag_use_cxa_atexit): Update documentation.
1026         (flag_use_cxa_get_exception_ptr): New.
1027         * c-common.h (flag_use_cxa_get_exception_ptr): New.
1028         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
1029         documentation.
1030         (C_COMMON_OVERRIDE_OPTIONS): New.
1031
1032 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1033
1034         PR middle-end/24952
1035         * combine.c (try_combine): Explicitly check whether GET_CODE is
1036         a SET or a CLOBBER, instead on checking that it isn't a USE.
1037
1038 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1039
1040         * fold-const.c (fold_comparison): New subroutine of fold_binary
1041         containing transformations common to both the equality and
1042         ordering relational operators, factored out of fold_binary.
1043         (fold_binary): Separate out the equality operators (EQ_EXPR
1044         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1045         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1046         transformations common to both.
1047         (fold_div_compare): Fix latent bugs in the previously unreachable
1048         LT_EXPR and GE_EXPR cases.
1049
1050 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1051
1052         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1053         decl libname for clog to __clog on AIX.
1054
1055         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1056
1057 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1058
1059         PR target/26453
1060         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1061         output traceback table for thunks.  Localise rs6000_stack_info call.
1062
1063 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1064             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1065
1066         * gthr-posix.h (__gthrw): Fix typo in comment.
1067
1068 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1069
1070         * doc/cpp.texi (Character sets): Document that we do support
1071         input files to be in any character set.
1072
1073 2006-02-23  Jeff Law  <law@redhat.com>
1074
1075         * tree.h (PHI_ARG_NONZERO): Remove.
1076         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1077         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1078         node to the new node.
1079
1080         PR tree-optimization/26425
1081         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1082         min/max, then assume its varying.
1083
1084 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1085
1086         PR rtl-optimization/26316
1087         * rtlanal.c (enum may_trap_p_flags): New.
1088         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1089         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1090         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1091         (may_trap_after_code_motion_p): New function.
1092         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1093         (find_invariant_insn): Use may_trap_after_code_motion_p.
1094         * rtl.h (may_trap_after_code_motion_p): Declare.
1095
1096 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1097
1098         * emit-rtl.c (immed_double_const): Cleanup.
1099
1100 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1101
1102         Fix PR tree-optimization/26376
1103         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1104         remove assert.
1105
1106 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1107
1108         PR middle-end/26412
1109         * gimplify.c (omp_add_variable): Guard variable size decl test with
1110         DECL_SIZE (decl) check.
1111
1112 2006-02-23  Richard Guenther  <rguenther@suse.de>
1113
1114         PR middle-end/26439
1115         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1116         like aggregate types.
1117
1118 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1119
1120         * configure.ac: Add --with{,out}-long-double-128 configure option.
1121         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1122         * configure: Rebuilt.
1123         * config.in: Rebuilt.
1124         * doc/install.texi (Options specification): Document
1125         --with-long-double-128.
1126
1127         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1128         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1129         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1130         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1131
1132 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1133
1134         * config/s390/s390.c (override_options): Handle
1135         TARGET_DEFAULT_LONG_DOUBLE_128.
1136
1137         * config/alpha/alpha.c (override_options): Handle
1138         TARGET_DEFAULT_LONG_DOUBLE_128.
1139
1140         * config/sparc/sparc.c (sparc_override_options): Handle
1141         TARGET_DEFAULT_LONG_DOUBLE_128.
1142
1143 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1144
1145         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1146         (real-install-headers-tar, real-install-headers-cpio)
1147         (real-install-headers-cp): New targets.
1148
1149 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1150
1151         * tree.h (variable_section): Delete.
1152         * varasm.c (variable_section): Delete.
1153
1154 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1155
1156         * install.texi: Add notes on install.texi2html.
1157         (Building in parallel): Do not use footnotes.
1158
1159 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1160
1161         PR libgomp/26234
1162         * doc/install.texi (Configuration): Document --disable-libgomp.
1163
1164 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1165
1166         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1167
1168 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1169
1170         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1171         (vec_extractv2df_0_sse): New.
1172
1173 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1174
1175         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1176         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1177         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1178         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1179         to the result of the expression.
1180         (def_cfa_1): Adjust.
1181         (frame_pointer_cfa_offset): Rename to...
1182         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1183         (convert_cfa_to_loc_list): Rename to...
1184         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1185         Pass it on to build_cfa_loc.
1186         (compute_frame_pointer_to_cfa_displacement): Rename to...
1187         (compute_frame_pointer_to_fb_displacement): ... this.  New
1188         offset parameter.  Use it in computation.
1189         (gen_subprogram_die): Compute cfa_fb_offset with the new
1190         macro, and use it to compute the fb loc list and the
1191         displacement.
1192
1193 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1194
1195         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1196         replaced with register_operand.
1197         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1198         non-DREG is expensive.
1199         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1200         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1201         involving memory.
1202
1203 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1204
1205         * doc/install.texi2html: Use set -e.
1206
1207 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1208
1209         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1210         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1211         * doc/invoke.texi (-fshared-data): Delete.
1212         * common.opt (fshared-data): Delete.
1213         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1214         (assemble_static_space): Remove #if 0 code.
1215         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1216         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1217         * config/cris/cris.h: Remove FIXME.
1218
1219 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1220
1221         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1222         hooks.
1223
1224 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1225
1226         PR middle-end/26379
1227         * combine.c (simplify_shift_const_1): Disable nested shifts
1228         optimization for vector shifts.
1229
1230 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1231
1232         PR tree-optimization/26361
1233         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1234         of unsigned integer types.
1235
1236 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1237
1238         * tree-chrec.c (eq_evolutions_p): New.
1239         * tree-chrec.h (eq_evolutions_p): Declared.
1240         * tree-data-ref.c: Fix formatting.
1241         (datadep_stats, dependence_stats): New.
1242         (gcd): Moved...
1243         (print_direction_vector): New.
1244         (dump_data_dependence_relation): Use print_direction_vector.
1245         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1246         (compute_subscript_distance): Static.
1247         (initialize_data_dependence_relation): Static.  Get the number
1248         of loops surrounding the references from the callers, and initialize
1249         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1250         base_object_differ_p analyzers.
1251         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1252         compute_overlap_steps_for_affine_1_2,
1253         analyze_subscript_affine_affine): Count the classified dependences.
1254         Print a message when a test failed.
1255         (can_use_analyze_subscript_affine_affine): New.
1256         (analyze_siv_subscript): Compute the data dependences on symbolic
1257         scevs that verify can_use_analyze_subscript_affine_affine.
1258         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1259         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1260         Handle symbolic scevs.
1261         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1262         analyzed.
1263         (subscript_dependence_tester): Moved...
1264         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1265         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1266         DDR_SIZE_VECT instead of getting it in parameter.
1267         (subscript_dependence_tester): ... here.  Take as a parameter
1268         loop_nest_depth.  Call build_classic_dist_vector and
1269         build_classic_dir_vector.
1270         (compute_affine_dependence): Update subscript_dependence_tester
1271         parameters.  Update datadep_stats counters.  Call
1272         compute_subscript_distance.
1273         (compute_self_dependence): Save the dist and dir vectors.  Call
1274         compute_subscript_distance.
1275         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1276         (compute_all_dependences): Reorder parameters as they were before
1277         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1278         compute_subscript_distance.  Update the use of
1279         compute_affine_dependence and initialize_data_dependence_relation.
1280         (find_data_references_in_loop): Handle COMPONENT_REF.
1281         (compute_data_dependences_for_loop): Initialize dependence_stats.
1282         Don't call build_classic_dist_vector and build_classic_dir_vector.
1283         Update the parameters of initialize_data_dependence_relation and
1284         compute_all_dependences.  Print the statistics from datadep_stats.
1285         (analyze_all_data_dependences): Static.  Not used until the pass for
1286         checking the data dependences is contributed.
1287         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1288         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1289         (initialize_data_dependence_relation, compute_affine_dependence,
1290         analyze_all_data_dependences, compute_subscript_distance): Removed.
1291         (print_direction_vector): New.
1292         * lambda.h (gcd): ... here.
1293         (lambda_vector_gcd): Moved here from gcd_vector.
1294         * lambda-code.c (gcd, gcd_vector): Removed.
1295         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1296         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1297
1298 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1299
1300         * ipa-type-escape.c: Tidy some comments and white space.
1301         * tree-ssa-operands.c: Likewise.
1302
1303 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1304
1305         PR tree-opt/25879
1306         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1307         (dump_decl_name): Do not walk the decl tree chains.
1308         * tree-pass.h (TDF_CHAIN): Remove.
1309
1310 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1311
1312         * Makefile.in (C): Remove
1313         (PROTO): Remove
1314         (.PHONY): Remove C and PROTO
1315
1316 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1317
1318         PR middle-end/26236
1319         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1320         deprecated CHAR_TYPE tree code.
1321
1322 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1323
1324         * configure.ac (target_list): Add install-info, dvi, html.
1325         * configure: Regenerate.
1326
1327         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1328         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1329         treelang/Make-lang.in: Do not use double-colon rules.
1330
1331 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1332
1333         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1334         (TMT_USED_ALONE): New macro.
1335         * tree-pass.h (PROP_tmt_usage): New property.
1336         (TODO_update_tmt_usage): New todo.
1337         * tree-ssa-alias.c (updating_used_alone): New variable.
1338         (recalculate_used_alone): New function.
1339         (compute_may_aliases): Set updating_used_alone, call
1340         recalculate_used_alone.
1341         * tree-sra.c (pass_sra): Note that this pass destroys
1342         PROP_tmt_usage, and add TODO_update_tmt_usage.
1343         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1344         * tree-flow.h (updating_used_alone): Prototype.
1345         (recalculate_used_alone): Ditto.
1346         * passes.c (execute_todo): Add code to set updating_used_alone,
1347         and call recalculate.
1348         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1349         for clobber if used alone, and add assert to verify used_alone
1350         status.
1351
1352 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1353
1354         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1355         for non tls symbols added.
1356         (legitimize_address): Do nothing for PLUS expressions if one of the
1357         addends is a tls symbol reference.
1358
1359 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1360
1361         PR bootstrap/25476
1362
1363         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1364
1365         * Makefile.in (BOOTSTRAPPING): New.
1366         (quickstrap): New definition if BOOTSTRAPPING=yes.
1367
1368         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1369         * configure.ac: Substitute all_selected_languages with the languages
1370         that were configured.  For all the other variables except
1371         lang_specs_files, include all the languages in the tree.
1372         * configure: Regenerate.
1373
1374         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1375         if there is one.  Run the commands to run fixincludes in the same
1376         subshell.
1377
1378         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1379         * doc/install.texi: Document exact conventions for searching target tools.
1380         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1381         something more about building an Ada cross-compiler.  Don't list GNU Make
1382         requirements which affect all platforms.
1383
1384 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1385
1386         PR middle-end/19543
1387         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1388         only equivalent if the have both the same mode and precision.
1389
1390 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1391
1392         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1393
1394 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1395             Steven Bosscher  <stevenb.gcc@gmail.com>
1396
1397         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1398         constant pool references to identify stack mode constants.
1399         * rtlanal.c (constant_pool_constant_p): New predicate to check
1400         whether operand is a floating point constant in the pool.
1401         * rtl.h (constant_pool_constant_p): Prototype here.
1402         * loop.c (scan_loop): Avoid hoisting constants from the constant
1403         pool on STACK_REGS targets.
1404         (load_mems): Likewise.
1405         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1406         loads into x87 registers expensive in terms of register pressure.
1407
1408 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1409
1410         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1411         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1412
1413 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1414
1415         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1416         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1417
1418 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1419
1420         * doc/invoke.texi: Document -fipa-pta.
1421         * common.opt: Add ipa-pta option.
1422         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1423         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1424         (do_ds_constraint): Ditto.
1425         (get_constraint_for): Only add to referenced_vars if
1426         referenced_vars exists.
1427         (insert_into_field_list): Rewrite to do this unsorted.
1428         (insert_into_field_list_sorted): Rename old insert_into_field_list
1429         to this.
1430         (create_function_info_for): Use insert_into_field_list_sorted.
1431         (create_variable_info_for): Rewrite so it uses unsorted version,
1432         since the field list is sorted.
1433         (intra_create_variable_infos): Only add to referenced_vars if
1434         referenced_vars exists.
1435         (ipa_pta_execute): Init heapvars, and delete when done.
1436         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1437
1438 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1439
1440         * doc/install.texi: Add missing `@samp'.
1441
1442 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1443
1444         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1445         Use the arguments.
1446
1447 2006-02-18  Mark Wielaard  <mark@klomp.org>
1448
1449         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1450         who added new 4.1 features, bug fixes and integration support.
1451
1452 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1453
1454         PR target/26350
1455         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1456         MEM for ABI_V4 pic.
1457
1458 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1459
1460         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1461         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1462         (copy_insn_1): Likewise.  Don't copy each field individually.
1463         Reindent.
1464         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1465         of RTX_SIZE.
1466         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1467         * rtl.c (rtx_size): Rename variable to...
1468         (rtx_code_size): ...this.
1469         (rtx_size): New function.
1470         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1471         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1472         Reindent.
1473         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1474         * rtl.h (rtx_code_size): New variable.
1475         (rtx_size): Change from a variable to a function.
1476         (RTX_SIZE): Rename to...
1477         (RTX_CODE_SIZE): ...this.
1478
1479         PR target/9703
1480         PR tree-optimization/17106
1481         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1482         (Anchored Addresses): New section.
1483         * doc/invoke.texi (-fsection-anchors): Document.
1484         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1485         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1486         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1487         * hooks.c (hook_bool_mode_rtx_false): New function.
1488         * hooks.h (hook_bool_mode_rtx_false): Declare.
1489         * gengtype.c (create_optional_field): New function.
1490         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1491         SYMBOL_REF_IN_BLOCK_P is true.
1492         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1493         (min_anchor_offset, max_anchor_offset): Likewise.
1494         (use_anchors_for_symbol_p): New hook.
1495         * toplev.c (compile_file): Call output_object_blocks.
1496         (target_supports_section_anchors_p): New function.
1497         (process_options): Check that -fsection-anchors is only used on
1498         targets that support it and when -funit-at-a-time is in effect.
1499         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1500         if the decl doesn't have one.
1501         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1502         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1503         of force_const_mem through use_anchored_address.
1504         (expand_expr_constant): New function.
1505         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1506         calling expand_expr for INDIRECT_REF.
1507         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1508         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1509         * expr.h (use_anchored_address): Declare.
1510         * loop-unroll.c: Don't declare rtx vectors here.
1511         * explow.c: Include output.h.
1512         (validize_mem): Call use_anchored_address.
1513         (use_anchored_address): New function.
1514         * common.opt (-fsection-anchors): New switch.
1515         * varasm.c (object_block_htab, anchor_labelno): New variables.
1516         (hash_section, object_block_entry_eq, object_block_entry_hash)
1517         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1518         (use_blocks_for_decl_p, change_symbol_section): New functions.
1519         (get_variable_section): New function, split out from assemble_variable.
1520         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1521         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1522         symbol has already been created.
1523         (assemble_variable_contents): New function, split out from...
1524         (assemble_variable): ...here.  Don't output any code for
1525         block symbols; just pass them to place_block_symbol.
1526         Use get_variable_section and assemble_variable_contents.
1527         (get_constant_alignment, get_constant_section, get_constant_size): New
1528         functions, split from output_constant_def_contents.
1529         (build_constant_desc): Create a block symbol if use_object_blocks_p
1530         says so.  Or into SYMBOL_REF_FLAGS.
1531         (assemble_constant_contents): New function, split from...
1532         (output_constant_def_contents): ...here.  Don't output any code
1533         for block symbols; just pass them to place_section_symbol.
1534         Use get_constant_section and get_constant_alignment.
1535         (force_const_mem): Create a block symbol if use_object_blocks_p and
1536         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1537         (output_constant_pool_1): Add an explicit alignment argument.
1538         Don't switch sections here.
1539         (output_constant_pool): Adjust call to output_constant_pool_1.
1540         Switch sections here instead.  Don't output anything for block symbols;
1541         just pass them to place_block_symbol.
1542         (init_varasm_once): Initialize object_block_htab.
1543         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1544         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1545         (place_block_symbol, get_section_anchor, output_object_block)
1546         (output_object_block_htab, output_object_blocks): New functions.
1547         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1548         (TARGET_ASM_OUT): Include it.
1549         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1550         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1551         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1552         (TARGET_INITIALIZER): Include them.
1553         * rtl.c (rtl_check_failed_block_symbol): New function.
1554         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1555         (block_symbol, object_block): New structures.
1556         (rtx_def): Add a block_symbol field to the union.
1557         (BLOCK_SYMBOL_CHECK): New macro.
1558         (rtl_check_failed_block_symbol): Declare.
1559         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1560         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1561         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1562         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1563         * output.h (output_section_symbols): Declare.
1564         (object_block): Name structure.
1565         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1566         (default_use_anchors_for_symbol_p): Declare.
1567         * Makefile.in (RTL_BASE_H): Add vec.h.
1568         (explow.o): Depend on output.h.
1569         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1570         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1571         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1572         (rs6000_use_blocks_for_constant_p): New function.
1573
1574 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1575
1576         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1577
1578 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1579
1580         PR tree-opt/25680
1581         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1582         IMAGPART_EXPR.
1583
1584 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1585
1586         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1587         is_aliased.
1588         Update all users.
1589
1590 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1591
1592         PR middle-end/26334
1593         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1594         instead of DECL_REGISTER.
1595
1596 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1597
1598         PR ada/13408
1599         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1600
1601 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1602
1603         PR target/24837
1604         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1605         * opth-gen.awk: Handle Var and InverseMask together.
1606         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1607         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1608         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1609         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1610         used together.
1611         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1612         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1613         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1614         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1615         LINUX_DYNAMIC_LINKER): Define.
1616         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1617         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1618         TARGET_GLIBC.
1619         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1620         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1621         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1622         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1623         (TARGET_C99_FUNCTIONS): Don't define.
1624         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1625         GLIBC_DYNAMIC_LINKER.
1626         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1627         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1628         GLIBC_DYNAMIC_LINKER64): Define.
1629         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1630         LINUX_DYNAMIC_LINKER64.
1631         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1632         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1633         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1634         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1635         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1636         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1637         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1638         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1639         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1640         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1641         and LINUX_DYNAMIC_LINKER32.
1642         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1643         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1644         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1645         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1646         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1647         TARGET_GLIBC.
1648         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1649         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1650         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1651         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1652         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1653         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1654         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1655         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1656         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1657         LINUX_DYNAMIC_LINKER): Define.
1658         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1659         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1660         GLIBC_DYNAMIC_LINKER64): Define.
1661         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1662         LINUX_DYNAMIC_LINKER64.
1663         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1664         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1665         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1666         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1667         LINUX_DYNAMIC_LINKER): Define.
1668         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1669         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1670         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1671         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1672         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1673         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1674         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1675         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1676         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1677         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1678         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1679         * doc/invoke.texi (-muclibc): Remove caveat about supported
1680         targets.
1681
1682 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1683
1684         * doc/cpp.texi (__TIMESTAMP__): Document.
1685
1686 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1687
1688         PR middle-end/25600
1689         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1690         C is one less than the width of X (and related transformations).
1691         * simplify-rtx.c (simplify_unary_operation_1): Transform
1692         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1693         depending on STORE_FLAG_VALUE, were C is one less then the
1694         width of X.
1695
1696 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1697
1698         Fix PR tree-optimization/26341
1699         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1700         about NAME_MEMORY_TAG's.
1701
1702 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1703
1704         PR target/26255
1705         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1706         with hardware float support, and software float support.  Add fcpy
1707         alternative to hardware patterns.  Add alternatives to copy between
1708         general and floating-point registers to the 32-bit pattern.
1709         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1710         secondary reload to load a QI or HI mode constant into a floating
1711         point register.
1712         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1713         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1714
1715 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1716
1717         PR target/26272
1718         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1719         pc to the pattern.
1720         (load_macho_picbase_di): Likewise.
1721
1722 2006-02-16  Jeff Law  <law@redhat.com>
1723
1724         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1725         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1726         (ssa_name_nonzero_p): Likewise.
1727         (get_value_range): Return NULL if VRP is not running.
1728         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1729         VRP routines do not discover a range.
1730         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1731         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1732         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1733         (tree_expr_nonnegative_p): Similarly.
1734         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1735         (restore_nonzero_vars_to_original_value): Remove.
1736         (unsafe_associative_fp_binop): Remove.
1737         (tree_ssa_dominator_optimize): Remove initialization and
1738         finalization of nonzero_vars and nonzero_vars_stack.
1739         (dom_opt_initialize_block): No longer push marker on
1740         nonzero_vars_stack.
1741         (dom_opt_finalize_block): No longer call
1742         restore_nonzero_vars_to_original_value.
1743         (record_equivalences_from_phis): No longer look for
1744         nonzero PHI arguments.
1745         (cprop_into_successor_phis): No longer propagate nonzero
1746         property into PHI arguments.  Lose unused argument.  Caller
1747         updated.
1748         (record_equivalences_from_stmt): No longer record nonzero
1749         values for SSA_NAMEs.
1750         (lookup_avail_expr): No longer use nonzero_vars.
1751
1752         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1753         for sizetype when sizetype is unsigned.
1754
1755 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1756
1757         PR rtl-optimization/25603
1758         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1759         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1760         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1761         with new meaning of SETS.
1762
1763 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1764
1765         PR target/20353
1766         PR target/24578
1767         PR target/24837
1768         * config/linux.opt: New file.
1769         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1770         LINUX_DYNAMIC_LINKER): Define.
1771         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1772         * config.gcc (*-*-linux*): Define extra_options.
1773         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1774         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1775         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1776         GLIBC_DYNAMIC_LINKER.
1777         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1778         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1779         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1780         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1781         * doc/invoke.texi (GNU/Linux Options): New section.
1782
1783 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1784
1785         * config/sparc/sparc.md (setjmp): Rewrite.
1786         (setjmp_32): Delete.
1787         (setjmp_64): Likewise.
1788
1789 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1790
1791         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1792          previous change.
1793
1794 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1795
1796         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1797         read-write uses.
1798
1799 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1800
1801         PR rtl-optimization/26296
1802         * Makefile.in (loop-invariant.c): Add except.h dependency.
1803         * loop-invariant.c: Include except.h.
1804         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1805
1806 2005-02-16  Paul Brook  <paul@codesourcery.com>
1807
1808         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1809         for reloads.
1810
1811 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1812
1813         PR rtl-optimization/25636
1814         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1815         when deciding whether an insn is an initializing insn.
1816
1817 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1818
1819         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1820         (tree_code_size): Ditto.
1821         * tree.h (struct tree_memory_tag): Remove parent_var.
1822         (struct tree_struct_field_tag): New.
1823         (SFT_OFFSET): New.
1824         (SFT_SIZE): New.
1825         (union tree_node): Add sft member.
1826         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1827         specially here.
1828         (create_sft): Add size and offset argument, set SFT_OFFSET and
1829         SFT_SIZE.
1830         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1831         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1832         * tree-flow-inline.h (get_subvar_at): Update for
1833         SFT_OFFSET/SFT_SIZE.
1834         (var_can_have_subvars): Ditto.
1835         (overlap_subvar): Ditto.
1836         * print-tree.c (print_node): Print out interesting things for
1837         SFT's.
1838         * tree-flow.h (struct subvar): Remove offset and size members.
1839         * tree-ssa-operands.c (get_expr_operands): Update for
1840         get_indirect_ref_operands changes.
1841         (get_indirect_ref_operands): Call add_virtual_operand instead of
1842         add_stmt_operand.  Only recurse on base var if requested.
1843         (access_can_touch_variable): New function.
1844         (add_stmt_operand): Split virtual operand handling into ...
1845         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1846         arguments.  Prune alias sets.
1847         (add_call_clobber_ops): Call add_virtual_operand.
1848
1849 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1850
1851         PR middle-end/26300
1852         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1853
1854         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1855         than TREE_CODE as index into omp_clause_num_ops array.
1856
1857 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1858
1859         PR rtl-optimization/26184
1860         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1861         uses_of_defs.
1862         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1863         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1864         must_precede, must_follow and tobe_scheduled.
1865
1866         PR other/26147
1867         * opts.c (common_handle_option): Free new_option pointer.
1868         * df-core.c (df_analyze): Free postorder pointer.
1869
1870 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1871
1872         * Makefile.in: Fix the examples about the use of stamps
1873
1874 2006-02-15  Michael Matz  <matz@suse.de>
1875
1876         PR middle-end/22275
1877
1878         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1879         influenced by maximum_field_alignment or DECL_PACKED.
1880         (update_alignment_for_field): Ditto.
1881         (place_field): Ditto.
1882         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1883         this behaviour.
1884
1885 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1886
1887         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1888         (debug_flow_info): Pass it.
1889         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1890         * bb-reorder.c (reorder_basic_blocks): Likewise.
1891         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1892         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1893         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1894         * gcse.c (gcse_main, bypass_jumps): Likewise.
1895         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1896         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1897         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1898         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1899         * rtl.h (dump_flow_info): Adjust prototype.
1900         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1901         * var-tracking.c (variable_tracking_main): Likewise.
1902         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1903         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1904         options.
1905
1906 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1907
1908         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1909         construction.
1910
1911 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1912
1913         PR tree-optimization/26209
1914         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1915         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1916         eh edges.
1917         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1918
1919 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1920
1921         PR middle-end/23670
1922         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1923         (X,Y) and the corresponding symmetry related transformations.
1924         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1925         (X,Y) and its symmetry related transformations.
1926
1927 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1928
1929         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1930         and GEU.
1931
1932 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1933
1934         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1935
1936 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1937
1938         PR bootstrap/26053
1939         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1940         support COMDAT group.
1941         * configure: Regenerate.
1942
1943 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1944
1945         PR middle-end/26279
1946         PR middle-end/26280
1947         PR middle-end/26283
1948         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1949
1950 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1951
1952         Fix PR tree-optimization/26260
1953
1954         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1955         param.
1956         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1957         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1958         * tree-ssa-structalias.c (create_variable_info_for): Use
1959         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1960
1961 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1962
1963         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1964         Document.
1965         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1966         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1967         of the ending condition.
1968         * tree-ssa-loop-manip.c: Include params.h.
1969         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1970         tree_unroll_loop): New functions.
1971         * tree-pass.h (pass_loop_prefetch): Declare.
1972         * loop.c (rest_of_handle_loop_optimize): Test for
1973         -fprefetch-loop-arrays-rtl.
1974         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1975         * timevar.def (TV_TREE_PREFETCH): New timevar.
1976         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1977         pass_loop_prefetch): New.
1978         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1979         (cleanup_tree_cfg_loop): Call scev_reset.
1980         * common.opt (fprefetch-loop-arrays-rtl): Add.
1981         * tree-ssa-loop-prefetch.c: New file.
1982         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1983         (new_temp_expr_table): Initialize expr_vars.
1984         (free_temp_expr_table): Cleanup expr_vars.
1985         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1986         expressions from being merged into one.
1987         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1988         (struct tree_niter_desc): Add control, bound and cmp fields.
1989         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1990         Declare.
1991         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1992         (tree-cfgcleanup.o): Add SCEV_H dependency.
1993         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1994         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1995
1996 2006-02-14  Richard Guenther  <rguenther@suse.de>
1997
1998         PR tree-optimization/26258
1999         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
2000         in PHI argument processing.
2001
2002 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
2003
2004         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
2005         new expression in the requested machine mode.
2006
2007 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2008
2009         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
2010         directly, instead let do_compare_rtx_and_jump handle this for us.
2011         * expr.c (expand_expr_real_1): Likewise.
2012         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
2013         before do_jump_by_parts_greater.
2014         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
2015         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
2016
2017 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2018
2019         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
2020
2021 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2022
2023         PR rtl-optimization/26235
2024         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
2025         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
2026         format.
2027
2028 2006-02-13  Jeff Law  <law@redhat.com>
2029
2030         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2031         TRUTH_XOR_EPR.
2032
2033 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2034
2035         PR middle-end/26092
2036         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2037         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2038         first to verify it is still a builtin.
2039
2040 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2041
2042         * dwarf2out.c (base_type_die): Don't add AT_name here.
2043         (subrange_type_die): Don't add AT_name here.
2044         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2045
2046 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2047
2048         PR rtl-optimization/26247
2049         PR rtl-optimization/26248
2050         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2051
2052 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2053
2054         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2055         * config/fixtfdi.c: Likewise.
2056         * config/fixunstfdi.c: Likewise.
2057         * config/floatditf.c: Likewise.
2058
2059 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2060
2061         PR middle-end/24427
2062         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2063         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2064         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2065         (X&(C1&~C2))|C2.
2066         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2067
2068 2006-02-13  Josh Conner  <jconner@apple.com>
2069
2070         PR target/25376
2071         * varasm.c (function_section): Check for section name before
2072         calling select_section on targets that define
2073         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2074         unlikely_text_section instead of hot_function_section if
2075         first_function_block_is_cold.
2076
2077 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2078
2079         PR middle-end/25335
2080         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2081
2082 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2083
2084         PR rtl-optimization/26222
2085         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2086         after tree->rtl expansion.
2087         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2088         before passing it to emit_move_insn.
2089
2090 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2091
2092         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2093         default.
2094         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2095         Clarify documentation.
2096         * c-common.h (warn_write_strings): Remove.
2097         * c-common.c (warn_write_strings): Likewise.
2098         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2099         default for C++.
2100
2101 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2102
2103         PR middle-end/25724
2104         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2105         (do_jump_parts_zero_rtx): New function renamed from
2106         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2107         (do_jump_parts_equality_rtx): New function split out from
2108         do_jump_parts_equality.  Old implementation renamed as above.
2109         Call do_jump_parts_zero_rtx if either operand is zero.
2110         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2111         do all of the heavy lifting.
2112         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2113         calling either do_jump_by_parts_greater_rtx or
2114         do_jump_by_parts_equality_rtx.
2115         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2116         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2117         moved to do_compare_rtx_and_jump, call it directly.
2118         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2119         mode argument.  Call do_compare_rtx_and_jump.
2120         (emit_case_nodes): Update calls to do_jump_if_equal.
2121
2122 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2123
2124         PR rtl-optimization/26225
2125         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2126
2127 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2128
2129         PR rtl-optimization/26232
2130         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2131
2132 2006-02-11  Jason Merrill  <jason@redhat.com>
2133
2134         PR tree-opt/24365
2135         * tree-inline.c (declare_return_variable): Just don't use the
2136         modify target if it's a gimple complex reg and the return slot
2137         isn't.
2138
2139 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2140
2141         * doc/contrib.texi: Update my entry.
2142
2143 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2144
2145         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2146
2147 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2148
2149         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2150         expensive.
2151
2152 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2153
2154         * doc/invoke.texi (-floop-optimize2): Removed.
2155         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2156         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2157         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2158         * common.opt (floop-optimize2): Removed.
2159         (fmove-loop-invariants): Enabled by default.
2160
2161 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2162
2163         * tree-if-conv.c (combine_blocks): Free the result of
2164         get_loop_exit_edges.
2165
2166 2006-02-10  Jeff Law  <law@redhat.com>
2167
2168         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2169
2170         PR tree-optimization/26213
2171         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2172         loop trying to follow SSA_NAME_VALUE chains.
2173
2174 2006-02-10  Richard Guenther  <rguenther@suse.de>
2175
2176         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2177         deal with structures that end in implicitly variable sized arrays.
2178
2179 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2180
2181         PR rtl-optimization/24762
2182         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2183         eh edges.
2184
2185 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2186
2187         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2188         (struct ivopts_data): Add regs_used field.
2189         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2190         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2191         instead of loop_data->regs_used;
2192         (free_loop_data): Do not free aux fields for loops.
2193         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2194         and tree_ssa_iv_optimize_finalize.
2195
2196 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2197
2198         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2199
2200 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2201
2202         PR target/26141
2203         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2204         computing the effective result type.
2205
2206 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2207
2208         PR inline-asm/16194
2209         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2210         (tree_overlaps_hard_reg_set): Declare.
2211         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2212         type and signature to match function type expected by walk_tree.
2213         (tree_overlaps_hard_reg_set): New function.
2214         (decl_conflicts_with_clobbers_p): Rename to:
2215         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2216         Use tree_overlaps_hard_reg_set.  Changed caller.
2217         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2218         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2219         * cris.c (cris_md_asm_clobbers): Likewise.
2220
2221 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2222
2223         * reload1.c (emit_input_reload_insns): Delete code that tries to
2224         inherit using find_equiv_reg.
2225
2226 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2227
2228         * c-common.h (flag_const_strings): Don't declare.
2229         * c-common.c (flag_const_strings): Remove.
2230         * c.opt (fconst_strings): Remove.
2231         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2232         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2233         (c_common_init_options): Don't set flag_const_strings.
2234         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2235
2236 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2237
2238         * arm.md (tlobits_cbranch): New pattern.
2239         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2240         testing a single bit.
2241
2242 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2243
2244         PR tree-opt/26179
2245         * tree-ssa-pre.c (create_component_ref_by_pieces):
2246         Handle RETURN_DECL like VAR_DECL.
2247
2248 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2249
2250         PR middle-end/26134
2251         * fold-const.c (fold_indirect_ref_1): Fold
2252         "*(foo *)&complexfoo" to "__real__ complexfoo"
2253         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2254
2255 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2256
2257         * tree-flow-inline.h (var_can_have_subvars):
2258         Volatile variables should not have subvariables.
2259
2260 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2261
2262         PR 26180
2263         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2264         multiplying unsigned values.
2265         Tidy comments.
2266
2267 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2268
2269         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2270
2271 2006-02-08  Jason Merrill  <jason@redhat.com>
2272
2273         PR c++/25979
2274         * tree.def: Elaborate on difference from MODIFY_EXPR.
2275         * doc/c-tree.texi (INIT_EXPR): Likewise.
2276         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2277         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2278         (gimplify_target_expr): Likewise.
2279         (gimplify_cond_expr): Remove target handling.
2280         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2281         (gimplify_expr): Clobber it here.
2282         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2283         Do return slot optimization if we have an INIT_EXPR.
2284
2285         PR tree-opt/24365
2286         * tree-inline.c (declare_return_variable): Also clear
2287         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2288
2289         PR c++/16405
2290         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2291
2292         PR middle-end/22439
2293         * gimplify.c (gimplify_one_sizepos): Fix typo.
2294
2295 2006-02-08  Jeff Law  <law@redhat.com>
2296
2297         PR tree-optimization/21417
2298         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2299         across a backedge if the control statement at the end of the
2300         block is data dependent on other statements in the same block.
2301         (record_temporary_equivalences_from_stmts): Remove over-conservative
2302         test for threading across backedges.
2303
2304         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2305         control statement, handle all three special cases in the same
2306         manner as they all have the same desired solution.  No longer
2307         special case edge flag updating when the post dominator is
2308         the exit block.
2309
2310 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2311
2312         * tree.def (CHAR_TYPE): Remove.
2313         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2314         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2315         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2316         (gen_string_type_die): Delete unreachable function.
2317
2318         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2319         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2320         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2321         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2322         * builtins.c (type_to_class): Likewise.
2323         * fold-const.c (fold_convert, build_range_check,
2324         merge_ranges): Likewise.
2325         * expr.c (count_type_elements): Likewise.
2326         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2327         * stor-layout.c (layout_type): Likewise.
2328         * ipa-type-escape.c (type_to_consider): Likewise.
2329         * gimplify.c (omp_firstprivatize_type_sizes,
2330         gimplify_type_sizes): Likewise.
2331         * explow.c (promote_mode): Likewise.
2332         * tree-sra.c (is_sra_scalar_type): Likewise.
2333         * varasm.c (output_constant): Likewise.
2334         * tree-inline.c (remap_type_1): Likewise.
2335         * convert.c (convert_to_pointer, convert_to_real,
2336         convert_to_integer, convert_to_complex): Likewise.
2337
2338 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2339
2340         * df-scan.c (df_def_record_1): A set destination may
2341         be a parallel regardless of mode.
2342
2343 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2344
2345         PR target/22209
2346         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2347         * config/mips/_tilib.c: Remove.
2348         * config/fixtfdi.c: New libgcc source file.
2349         * config/fixunstfdi.c: New source file.
2350         * config/floatditf.c: New source file.
2351         * config/floatunditf.c: New souce file.
2352         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2353         files above instead of config/mips/_tilib.c.
2354         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2355
2356 2006-02-08  Jeff Law  <law@redhat.com>
2357
2358         PR tree-optimization/26169
2359         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2360         threading jumps.
2361
2362 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2363
2364         * df.h (DF_REG_SIZE): Return the length of the initialized
2365         part of the array.
2366
2367 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2368
2369         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2370         __muldf3): Return a correctly signed zero.
2371
2372 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2373
2374         * passes.c (register_one_dump_file): Accept the current properties
2375         instead of pass number.  Adjust call to dump_register.  Remove
2376         duplicated code.
2377         (register_dump_files): Now a wrapper around...
2378         (register_dump_files_1): ... this one.  Do not modify the pass
2379         structure.
2380         (next_pass_1): Cosmetic fix.
2381         (execute_todo): Keep second parameter only.  Use curr_properties
2382         instead of fetching it from the pass structure.  Check and set
2383         last_verified.
2384         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2385         instead of fetching it from the pass structure.  Fix calls to
2386         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2387         after running the pass.  Reset last_verified.
2388         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2389         at the beginning.
2390         (FIRST_AUTO_NUMBERED_DUMP): New.
2391         (dump_register): Remove "num" parameter, assign it within the
2392         function.
2393         (get_dump_file_name): Modify template for dumps.
2394         * tree-dump.h (dump_register): Adjust prototype.
2395         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2396         (PROP_trees): Add PROP_gimple_lomp.
2397         (TODO_set_props): New.
2398         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2399         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2400         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2401
2402 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2403
2404         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2405         (sparc64-*-linux*): Likewise.
2406         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2407         * config/sparc/t-linux: New file.
2408         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2409         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2410         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2411         -m32 -mlong-double-128.
2412
2413         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2414         * config/alpha/t-linux: New file.
2415         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2416
2417         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2418         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2419         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2420         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2421         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2422         (CPP_ARCH32_SPEC): Remove.
2423
2424 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2425
2426         PR tree-optimization/26145
2427         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2428         bbs pointer.
2429
2430 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2431
2432         PR target/26109
2433         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2434         >= 240000 when generating code for SOM runtime.
2435         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2436         to $$dyncall when generating code for SOM runtime..
2437
2438 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2439
2440         PR c++/18150
2441         * doc/invoke.texi (-Wsequence-point): Update documentation
2442         that -Wsequence-point is implemented for C++ as well.
2443
2444 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2445
2446         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2447         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2448         (LIB_SPEC): Likewise.
2449         * doc/invoke.texi (SPARC options): Document -pthread.
2450
2451 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2452
2453         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2454         PIC addresses.
2455
2456 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2457
2458         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2459         Correct comment describing BOOLEAN_TYPE.
2460
2461 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2462
2463         * c.opt: C++ frontend supports -Wdiv-by-zero.
2464         * c-opts.c (c_common_handle_option): Remove dead case.
2465
2466 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2467
2468         * configure.ac (TLS assembler check): Do not enable TLS by
2469         default on SPARC/Solaris before version 10.
2470         * configure: Regenerate.
2471
2472 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2473
2474         * doc/invoke.texi (xl-compat): Document conversion and support
2475         routine names.
2476
2477 2006-02-07  Jeff Law  <law@redhat.com>
2478
2479         * tree-vrp.c (find_conditional_asserts): Update comments.
2480         (simplify_stmt_for_jump_threading): New.
2481         (identify_jump_threads, finalize_jump_threads): New.
2482         (vrp_finalize): Call identify_jump_threads.
2483         (execute_vrp): Call finalize_jump_threads.
2484         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2485         (vrp_element, vrp_data, vrp_element_p): Remove.
2486         (vrp_hash_elt, vrp_variables_stack): Remove.
2487         (vrp_hash, vrp_eq, record_range): Remove.
2488         (simplify_cond_and_lookup_avail_expr): Remove.
2489         (extract_range_from_cond): Remove.
2490         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2491         (simplify_stmt_for_jump_threading): New.
2492         (dom_thread_across_edge): New wrapper.
2493         (tree_ssa_dominator_optimize): No longer initialize or
2494         finalize any of the VRP datastructures.  Remove iteration
2495         step and simplify as a result of removal of iteration step.
2496         (pass_dominator): Perform a cfg cleanup after DOM.
2497         (dom_opt_finalize_block): Use the new common routines
2498         for threading jumps.  Simplify stack management slightly.
2499         No longer need to unwind VRP state.
2500         (record_equivalences_from_incoming_edge): No longer record
2501         VRP information.
2502         (eliminate_redundant_computations): No longer call
2503         simplify_cond_and_lookup_avail_expr.
2504         * tree-flow.h (potentially_threadable_block): Prototype.
2505         (thread_across_edge): Likewise.
2506         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2507         (tree-ssa-threadedge.o): Add dependencies.
2508         * tree-ssa-threadedge.c: New file.
2509         * passes.c (init_optimization_passes): Merge PHIs before
2510         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2511
2512 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2513
2514         * df-core.c (df_set_blocks): Do not dereference function pointers.
2515         (df_finish1): Likewise.
2516         (df_hybrid_search_forward): Likewise.
2517         (df_hybrid_search_backward): Likewise.
2518         (df_iterative_dataflow): Likewise.
2519         (df_analyze_problem): Likewise.
2520         (df_compact_blocks): Likewise.
2521         (df_dump): Likewise.
2522         * df-scan.c (df_rescan_blocks): Likewise.
2523         (df_record_entry_block_defs): Likewise.
2524
2525         * genconditions.c (write_conditions): Guard the definition of
2526         'insn_conditions' with the check on GCC version.
2527         (write_writer): Guard the traversal 'insn_conditions' with
2528         the check on GCC version.
2529
2530 2006-02-07  Richard Guenther  <rguenther@suse.de>
2531
2532         PR c++/26140
2533         Revert
2534         2006-01-30  Richard Guenther  <rguenther@suse.de>
2535         PR c++/23372
2536         * gimplify.c (gimplify_target_expr): Handle easy cases
2537         without creating a temporary.
2538
2539 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2540
2541         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2542         use of float in probability computations.  Use edge probabilities
2543         in place of statically computed probabilities.
2544         (min_spec_prob): New static variable.
2545         (schedule_insns): Initialize it.
2546         (GET_SRC_PROB): Removed.
2547         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2548
2549 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2550
2551         PR debug/24444
2552         * config/ia64/unwind-ia64.c: Revert last change.
2553         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2554         (INCOMING_FRAME_SP_OFFSET): Define.
2555
2556 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2557
2558         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2559
2560 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2561
2562         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2563         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2564         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2565         (ix86_return_in_memory): Handle TDmode.
2566         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2567         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2568
2569 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2570
2571         * reorg.c (dbr_schedule): Use dump_file instead of file.
2572
2573 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2574
2575         PR target/25917
2576         * config/ia64/predicates.md (extr_len_operand): New predicate.
2577         * config/ia64/ia64.md (extv): Tighten constraints.
2578         (extzv): Ditto.
2579         (*tbit_and_2): Ditto.
2580         (*tbit_and_3): Ditto.
2581         (*tbit_or_2): Ditto.
2582         (*tbit_or_3): Ditto.
2583         (*bit_zero): Ditto.
2584         (*bit_one): Ditto.
2585
2586 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2587
2588         PR target/23359
2589         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2590
2591 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2592
2593         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2594         loop_optimizer_init and loop_optimizer_finalize
2595         * tree-ssa-sink.c (execute_sink_code): Ditto.
2596         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2597         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2598         tree_ssa_loop_done): Ditto.
2599         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2600         * sched-ebb.c: Include output.h.
2601         (schedule_ebbs): Do not use dump argument.
2602         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2603         * loop.c (loop_dump_stream): Removed.
2604         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2605         argument.
2606         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2607         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2608         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2609         loop_iterations, strength_reduce, record_biv, record_giv,
2610         final_giv_value, check_final_value, check_ext_dependent_givs,
2611         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2612         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2613         dump_file instead of loop_dump_stream.
2614         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2615         argument dump_file.
2616         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2617         dump argument.
2618         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2619         * haifa-sched.c: Include output.h
2620         (schedule_insns, sched_init): Do not use dump argument.
2621         * mode-switching.c (optimize_mode_switching): Ditto.
2622         * modulo-sched.c (stats_file): Removed.
2623         (print_node_sched_params): Do not call argument dump_file.
2624         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2625         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2626         of stats_file.
2627         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2628         use dump argument.
2629         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2630         rtl_loop_init, rtl_loop_done): Ditto.
2631         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2632         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2633         Ditto.
2634         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2635         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2636         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2637         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2638         * emit-rtl.c (renumber_insns): Ditto.
2639         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2640         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2641         * regclass.c (regclass): Ditto.
2642         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2643         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2644         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2645         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2646         Ditto.
2647         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2648         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2649         to regclass.
2650         * gcse.c (gcse_file, debug_stderr): Removed.
2651         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2652         rest_of_handle_gcse): Do not use dump argument.
2653         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2654         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2655         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2656         compute_code_hoist_vbeinout, compute_code_hoist_data,
2657         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2658         compute_store_table, build_store_vectors, insert_insn_start_bb,
2659         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2660         store_motion): Use dump_file instead of gcse_file.
2661         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2662         * profile.c (profile_dump_file): Removed.
2663         (branch_prob): Use dump_file instead of profile_dump_file.
2664         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2665         dump_file.
2666         * tree-ssa-copy.c (dump_copy_of): Ditto.
2667         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2668         dump file to life_analysis.
2669         * bt-load.c (branch_target_load_optimize): Ditto.
2670         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2671         renumber_insns.
2672         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2673         regclass, dbr_schedule): Declaration changed.
2674         * sched-int.h (sched_init): Declaration changed.
2675         * tree-profile.c (tree_profile_dump_file): Removed.
2676         (tree_profile_hooks): Removed profile_dump_file hook.
2677         * rtl-profile (rtl_profile_dump_file): Removed.
2678         (rtl_profile_hooks): emoved profile_dump_file hook.
2679         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2680         changed.
2681         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2682         * tree-cfg.c (build_tree_cfg): Ditto.
2683         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2684         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2685         Declaration changed.
2686         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2687         life_analysis and schedule_insns.
2688         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2689         life_analysis.
2690         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2691         dbr_schedule.
2692         * config/mips/mips.c (mips_reorg): Ditto.
2693         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2694         schedule_ebbs.
2695
2696 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2697
2698         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2699         (s390_mangle_fundamental_type): New.
2700         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2701         Define.
2702
2703         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2704         (alpha_mangle_fundamental_type): New.
2705         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2706         Define.
2707
2708         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2709         Define.
2710         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2711         Define.
2712         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2713         (sparc_mangle_fundamental_type): New.
2714
2715 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2716
2717         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2718         (s390x-*-linux*): Likewise.
2719         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2720         * config/s390/t-linux: New file.
2721
2722 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2723
2724         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2725         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2726
2727 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2728
2729         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2730         (ANTIC_SAFE_LOADS): New macro.
2731         (find_or_generate_expression): Add prototype.
2732         (set_contains_value): Allow null set for sake of not always having
2733         to allocate ANTIC_SAFE_LOADS.
2734         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2735         Allow COMPONENT_REF too.
2736         (valid_in_set): Allow COMPONENT_REF.
2737         Check ANTIC_SAFE_LOADS too.
2738         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2739         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2740         rename.
2741         (can_PRE_operation): Add COMPONENT_REF.
2742         (create_component_ref_by_pieces): New function.
2743         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2744         (insert_aux): Move AGGREGATE_TYPE_P check here.
2745         (compute_avail): Set bb local stmt uids.
2746         (pass_pre): Use TODO_update_ssa_only_virtuals.
2747
2748 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2749
2750         * configure.ac: Unconditionally disable decimal float by default.
2751         * configure: Regenerate.
2752
2753 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2754
2755         * read-rtl.c (read_name): Terminate reading on EOF.
2756
2757 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2758
2759         * dfp.c (decimal_real_arithmetic): Change second argument type
2760         from int to enum tree_code. Do not always return true, but now
2761         return result of any call to decimal_do helper functions.
2762         * dfp.h (decimal_real_arithmetic): Update prototype.
2763
2764 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2765
2766         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2767
2768 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2769
2770         PR tree-opt/25251
2771         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2772         forced labels.
2773
2774 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2775
2776         * tree-vrp.c (cfg_loops): Removed.
2777         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2778         Use current_loops instead of cfg_loops.  Pass flags to
2779         loop_optimizer_init.
2780         * cfgloopmanip.c (fix_loop_structure): Update only available
2781         information.
2782         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2783         loop_optimizer_init.
2784         * modulo-sched.c (build_loops_structure): Removed.
2785         (sms_schedule): Use loop_optimizer_init.
2786         * loop-init.c (loop_optimizer_init): Use flags to determine
2787         which properties of loops to prepare.
2788         (rtl_loop_init): Pass flags to loop_optimizer_init.
2789         * tree-ssa-sink.c (execute_sink_code): Ditto.
2790         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2791         * tree-ssa-pre.c (init_pre): Ditto.
2792         * cfgloop.h (LOOPS_NORMAL): New.
2793         (loop_optimizer_init): Declaration changed.
2794
2795 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2796
2797         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2798         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2799         pa/t-pa.
2800         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2801         pa/t-pa.
2802         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2803         pa/x-ada.
2804         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2805         * pa/t-pa64: Delete quadlib.c rule.
2806         * pa/x-ada: Revert last change.
2807         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2808
2809 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2810
2811         PR rtl-optimization/26087
2812         * rtlanal.c (canonicalize_condition): Do not cross basic block
2813         boundaries.
2814
2815 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2816
2817         PR debug/24444
2818         * config/ia64/ia64.c: Include debug.h.
2819         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2820         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2821         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2822         (process_epilogue, process_set, process_for_unwind_directive):
2823         Output unwind info only if requested.  Add CFA info if requested.
2824         Add new arguments as needed.  Adjust callers.
2825         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2826         incorrect default.
2827         (DWARF2_FRAME_INFO): Define to zero.
2828         * config/ia64/unwind-ia64.c: Remove code that compensated for
2829         the CFA offset error fixed above.
2830         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2831         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2832         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2833         -funwind-tables and -fexceptions to enable frame info.
2834         (dwarf2out_frame_init): Define initial CFA even if
2835         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2836         DWARF2_UNWIND_INFO is nonzero, not just defined.
2837         (dwarf2out_frame_finish): Output non-EH call frame info only
2838         if DWARF2_FRAME_INFO is nonzero.
2839         (convert_cfa_to_loc_list,
2840         compute_frame_pointer_to_cfa_displacement): Define even if
2841         unwind info is not supported.
2842         (gen_subprogram_die): Use the above unconditionally.  Remove
2843         legacy alternate code.
2844         * toplev.c (compile_file): Compile in call to
2845         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2846         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2847
2848 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2849             Jakub Jelinek  <jakub@redhat.com>
2850
2851         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2852         IBM extended float format long double as "g" on powerpc*-linux.
2853
2854 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2855
2856         PR target/25926
2857         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2858         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2859
2860 2006-02-03  Jason Merrill  <jason@redhat.com>
2861
2862         PR c++/25979
2863         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2864
2865         PR middle-end/25977
2866         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2867         on the return slot if it's an NRV.
2868
2869 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2870
2871         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2872         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2873         rewrite_use): Do not handle USE_OUTER.
2874         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2875         add_iv_outer_candidates, may_replace_final_value,
2876         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2877         (find_interesting_uses_op): Functionality of
2878         find_interesting_uses_outer_or_nonlin moved here.
2879         (find_interesting_uses_outside): Use find_interesting_uses_op.
2880
2881 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2882
2883         PR target/25960
2884         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2885
2886 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2887             Ulrich Weigand  <uweigand@de.ibm.com>
2888
2889         PR target/25864
2890         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2891         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2892         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2893         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2894         and dxr fields.
2895         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2896         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2897         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2898         Define secondary reloads for TFmode moves.
2899         (constant_modes): Add TFmode.
2900         (NR_C_MODES): Set to 8.
2901         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2902         builtin define.
2903         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2904         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2905         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2906         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2907         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2908         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2909         (FPR mode macro): Add TFmode.
2910         (DSF mode macro): New.
2911         (<de>, <dee> mode attributes): Removed.
2912         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2913         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2914         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2915         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2916         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2917         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2918         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2919         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2920         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2921         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2922         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2923         "*negabs<mode>2", "sqrt<mode>2"):
2924         Changed <de> to <xde>. R constraint replaced by <Rf>.
2925         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2926         <Rf>.
2927         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2928         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2929         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2930         splitters.
2931         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2932         "extenddftf2", "extendsftf2"): New expanders.
2933         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2934         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2935         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2936         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2937         New options.
2938         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2939         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2940         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2941         __floatditf): Add a GCC_4.1.0 symbol version tag.
2942         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2943         the new options.
2944
2945 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2946
2947         PR target/25377
2948         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2949         Use targetm.binds_local_p instead of TREE_PUBLIC.
2950
2951 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2952
2953         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2954         on INTEGER_TYPEs to indicate that it denotes a character type.
2955         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2956         signed_char_type_node, unsigned_char_type_node and char_type_node.
2957         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2958         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2959         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2960
2961 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2962             Daniel Berlin  <dberlin@dberlin.org>
2963
2964         * tree-tailcall.c (arg_needs_copy_p): New function.
2965         (eliminate_tail_call): Use arg_needs_copy_p.
2966         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2967         (add_virtual_phis): New function.
2968
2969 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2970
2971         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2972         #ignore instead of #scratch for %g7 .register directive.
2973
2974 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2975
2976         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2977         object files.
2978
2979 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2980
2981         * flow.c (calculate_global_regs_live): Assert that there aren't any
2982         EDGE_FAKE edges.
2983
2984 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2985
2986         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2987         what its name says.
2988         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2989         bsi_after_labels iterator.
2990         * tree-if-conv.c (find_phi_replacement_condition,
2991         replace_phi_with_cond_modify_expr): Likewise.
2992         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2993         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2994
2995 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2996
2997         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2998
2999 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3000
3001         PR 25990
3002         * tree-cfg.c (move_block_to_fn): Clear out the basic block
3003         array after growing it.
3004
3005 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3006
3007         PR middle-end/24901
3008         * fold-const.c (fold_checksum_tree): Change type of buf.
3009
3010 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
3011
3012         * reload.c (push_secondary_reload): Initialize t_icode.
3013
3014 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
3015
3016         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
3017         -msoft-float -mlong-double-128 only issue a warning, but don't
3018         swich to DFmode long double.
3019
3020 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
3021
3022         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
3023         has a constant equivalent, iterate over equivalents for arg0,
3024         calling simplify_relational_operation and if there's a result
3025         cheaper than X, apply fold_rtx and return the result.
3026
3027 2006-02-01  Jan Hubicka  <jh@suse.cz>
3028
3029         * opts.c (no_unit_at_a_time_default): New global variable.
3030         (decode_options): Use it.
3031         * opts.h (no_unit_at_a_time_default): Declare.
3032
3033 2006-02-01  Paul Brook  <paul@codesourcery.com>
3034
3035         * function.c (assign_parm_setup_reg): Use function argument promotion
3036         rules.
3037         * expr.c (expand_expr_real_1): Use function argument promotion rules
3038         for PARM_DECLs.
3039
3040 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3041
3042         * gcc.c (process_command): Change j to 'unsigned int'.
3043
3044 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3045
3046         PR middle-end/26001
3047         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3048         Use the corrected index for the character
3049         out of the string constant.
3050
3051 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3052
3053         * mode-switching.c (optimize_mode_switching): Fix size
3054         allocated for bb_info[n_entities].
3055
3056 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3057
3058         * gcc.c (main): Correct type that is allocated for
3059         explicit_link_files.
3060
3061 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3062
3063         * config/s390/s390.c (init_alignment_context): Set
3064         ALIAS_SET_MEMORY_BARRIER on the MEM.
3065         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3066
3067 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3068
3069         PR middle-end/25933
3070         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3071         dom_bbs pointer.
3072         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3073         call to tpa_init.
3074
3075 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3076
3077         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3078         * regrename.c: Ditto.
3079         * tree-ssa-loop-im.c: Ditto.
3080         * tree-dump.c: Ditto.
3081         * tree-complex.c: Ditto.
3082         * genrecog.c: Ditto.
3083         * tree-ssa-threadupdate.c: Ditto.
3084         * tracer.c: Ditto.
3085         * java/class.c: Ditto.
3086         * java/jcf-parse.c: Ditto.
3087         * java/resource.c: Ditto.
3088         * java/except.c: Ditto.
3089         * java/jvspec.c: Ditto.
3090         * java/jcf-write.c: Ditto.
3091         * java/jcf-path.c: Ditto.
3092         * java/gjavah.c: Ditto.
3093         * java/zextract.c: Ditto.
3094         * java/jcf-io.c: Ditto.
3095         * java/jcf.h: Ditto.
3096         * java/buffer.c: Ditto.
3097         * java/lang.c: Ditto.
3098         * java/parse-scan.y: Ditto.
3099         * java/lex.c: Ditto.
3100         * java/lex.h: Ditto.
3101         * cfgloopmanip.c: Ditto.
3102         * postreload-gcse.c: Ditto.
3103         * tree-ssa-loop-manip.c: Ditto.
3104         * postreload.c: Ditto.
3105         * tree-ssa-loop-ch.c: Ditto.
3106         * loop.c: Ditto.
3107         * ipa-cp.c: Ditto.
3108         * cppspec.c: Ditto.
3109         * diagnostic.c: Ditto.
3110         * final.c: Ditto.
3111         * genoutput.c: Ditto.
3112         * gcc.c: Ditto.
3113         * cfghooks.c: Ditto.
3114         * cfgloopanal.c: Ditto.
3115         * objc/objc-act.c: Ditto.
3116         * gcov.c: Ditto.
3117         * genextract.c: Ditto.
3118         * genautomata.c: Ditto.
3119         * pretty-print.c: Ditto.
3120         * genemit.c: Ditto.
3121         * cgraphunit.c: Ditto.
3122         * flow.c: Ditto.
3123         * df-scan.c: Ditto.
3124         * haifa-sched.c: Ditto.
3125         * dominance.c: Ditto.
3126         * dbxout.c: Ditto.
3127         * tree-ssa-loop-ivopts.c: Ditto.
3128         * df-core.c: Ditto.
3129         * mode-switching.c: Ditto.
3130         * modulo-sched.c: Ditto.
3131         * graph.c: Ditto.
3132         * ipa-pure-const.c: Ditto.
3133         * cse.c: Ditto.
3134         * fix-header.c: Ditto.
3135         * web.c: Ditto.
3136         * tree-stdarg.c: Ditto.
3137         * ipa-utils.c: Ditto.
3138         * loop-init.c: Ditto.
3139         * ipa-inline.c: Ditto.
3140         * cfganal.c: Ditto.
3141         * global.c: Ditto.
3142         * alloc-pool.c: Ditto.
3143         * dwarf2out.c: Ditto.
3144         * opts.c: Ditto.
3145         * genattrtab.c: Ditto.
3146         * tree-ssa-loop-ivcanon.c: Ditto.
3147         * predict.c: Ditto.
3148         * timevar.c: Ditto.
3149         * lcm.c: Ditto.
3150         * fortran/gfortranspec.c: Ditto.
3151         * regmove.c: Ditto.
3152         * local-alloc.c: Ditto.
3153         * langhooks.c: Ditto.
3154         * function.c: Ditto.
3155         * tree-vectorizer.c: Ditto.
3156         * gcse.c: Ditto.
3157         * ipa-type-escape.c: Ditto.
3158         * alias.c: Ditto.
3159         * tree-if-conv.c: Ditto.
3160         * profile.c: Ditto.
3161         * ipa.c: Ditto.
3162         * tree-data-ref.c: Ditto.
3163         * loop-unroll.c: Ditto.
3164         * treelang/treetree.c: Ditto.
3165         * calls.c: Ditto.
3166         * bt-load.c: Ditto.
3167         * ggc-common.c: Ditto.
3168         * except.c: Ditto.
3169         * coverage.c: Ditto.
3170         * cselib.c: Ditto.
3171         * tree-cfgcleanup.c: Ditto.
3172         * tree-ssa-pre.c: Ditto.
3173         * cfgcleanup.c: Ditto.
3174         * loop-invariant.c: Ditto.
3175         * loop-iv.c: Ditto.
3176         * ipa-prop.c: Ditto.
3177         * print-tree.c: Ditto.
3178         * conflict.c: Ditto.
3179         * ggc-page.c: Ditto.
3180         * sched-deps.c: Ditto.
3181         * regclass.c: Ditto.
3182         * tree-object-size.c: Ditto.
3183         * combine.c: Ditto.
3184         * bb-reorder.c: Ditto.
3185         * resource.c: Ditto.
3186         * var-tracking.c: Ditto.
3187         * cfgloop.c: Ditto.
3188         * df-problems.c: Ditto.
3189         * reg-stack.c: Ditto.
3190         * tlink.c: Ditto.
3191         * gccspec.c: Ditto.
3192         * sched-rgn.c: Ditto.
3193         * tree-ssa-structalias.c: Ditto.
3194         * tree-ssa-reassoc.c: Ditto.
3195         * config/darwin-c.c: Ditto.
3196         * config/darwin.c: Ditto.
3197         * config/arm/arm.c: Ditto.
3198         * cfgrtl.c: Ditto.
3199         * collect2.c: Ditto.
3200         * reload1.c: Ditto.
3201
3202 2006-01-31  Nicolas Pitre  <nico@cam.org>
3203
3204         * arm.md (smaxsi3): Make aware of smax_m1.
3205         (smax_m1): New.
3206
3207 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3208
3209         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3210
3211 2006-01-31  Richard Guenther  <rguenther@suse.de>
3212
3213         * doc/invoke.texi (-msselibm): Document.
3214         * target.h (expand_library_builtin): New target hook.
3215         * builtins.c (expand_builtin): Use expand_library_builtin.
3216         (default_expand_library_builtin): New function.
3217         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3218         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3219         (link_gcc_math_spec): Declare.
3220         (static_specs): Add link_gcc_math_spec.
3221         * expr.h (default_expand_library_builtin): Declare.
3222         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3223         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3224         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3225         * config/i386/i386.opt (msselibm): New target option.
3226         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3227         (ix86_init_sse_abi_builtins): New function.
3228         (ix86_expand_library_builtin): Likewise.
3229         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3230         (override_options): Handle error conditions wrt -msselibm.
3231         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3232         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3233         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3234         builtins.
3235
3236 2006-01-31  Richard Guenther  <rguenther@suse.de>
3237         Paolo Bonzini  <bonzini@gnu.org>
3238
3239         * doc/install.texi (--disable-libgcc-math): Document.
3240
3241 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3242
3243         * expr.h (expand_normal): new inline function.
3244         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3245         * dojump.c: use it.
3246         * dwarf2out.c: use it.
3247         * expr.c: use it.
3248         * calls.c: use it.
3249         * expmed.c: use it.
3250         * except.c: use it.
3251         * config/sparc/sparc.c: use it.
3252         * config/i386/i386.c: use it.
3253         * config/rs6000/rs6000.c: use it.
3254         * config/arm/arm.c: use it.
3255         * config/mips/mips.c: use it.
3256         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3257
3258 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3259
3260         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3261         argv to the appropriate type.
3262
3263 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3264
3265         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3266         unreachable code.
3267
3268 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3269
3270         PR target/26018
3271         * config/s390/s390.c (struct machine_function): New flag
3272         decomposed_literal_pool_addresses_ok_p.
3273         (s390_reorg): Set it before final stage of literal pool transforms.
3274         (s390_decompose_address): Only accept displacements of the form
3275         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3276
3277 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3278
3279         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3280         the comparison routine return.
3281
3282 2006-01-30  Michael Matz  <matz@suse.de>
3283
3284         * global.c (find_reg): Only evict for global regs.
3285         Take n_refs into account and dump more info.
3286
3287 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3288
3289         PR target/14798:
3290         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3291         (pragma_trap, pragma_nosave_low_regs): Likewise.
3292         (current_function_anonymous_args): Likewise.
3293         (sh_deferred_function_attributes): New variable.
3294         (sh_deferred_function_attributes_tail): Likewise.
3295         (print_operand): For '@', look up trap_exit attribute.
3296         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3297         handlers, save/restore fpscr, but don't do any other
3298         interrupt-specific saves.
3299         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3300         Fix check for partially saved registers to check for SHmedia.
3301         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3302         (sh_output_function_epilogue): Don't clear any of the removed
3303         variables.
3304         (sh_insert_attributes): Don't check pragma_interrupt.
3305         Insert deferred attributes.  Check that interrupt attribute is
3306         present for other attributes that require its presence.
3307         (sh_attribute_table): Add new attributes trapa_handler and
3308         nosave_low_regs.
3309         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3310         Don't check for pragma_interrupt.  Don't store argument.
3311         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3312         (sh_deferred_function_attributes): Declare.
3313         (sh_deferred_function_attributes_tail): Likewise.
3314         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3315         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3316         (*return_i): Don't use when trap_exit attribute is in effect.
3317         (*return_trapa): New insn pattern.
3318         * sh-c.c: New file.
3319         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3320         setting c_target_objs and cxx_target_objs.
3321         * t-sh: Add rule for sh-c.o.
3322
3323 2006-01-30  Richard Guenther  <rguenther@suse.de>
3324
3325         PR c++/23372
3326         * gimplify.c (gimplify_target_expr): Handle easy cases
3327         without creating a temporary.
3328
3329 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3330
3331         * vec.h (safe_grow): Remove duplicated line.
3332
3333 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3334
3335         PR 25874
3336         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3337         (expand_omp): ... here.
3338         (expand_omp_parallel): Only remove barriers for combined
3339         parallel+workshare constructs.
3340
3341 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3342
3343         Revert
3344
3345         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3346         * tree.c (build_qualified_type): Chain the new type to the original
3347         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3348         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3349         (build_pointer_type_for_mode): Only return unqualified types.
3350         (build_reference_type_for_mode): Likewise.
3351
3352 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3353
3354         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3355         * Makefile.in (CXX_COMPAT_WARN): Define.
3356         * configure: Regenerate.
3357
3358 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3359
3360         PR tree-opt/25911
3361         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3362         to an if check.
3363
3364 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3365
3366         * toplev.c: Fix thinko.
3367
3368 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3369             Marcin Dalecki  <martin@dalecki.de>
3370
3371         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3372         (push_srcloc): Use XNEW.
3373         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3374
3375 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3376
3377         * df-core.c (df_set_blocks): Deleted all variable.
3378
3379 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3380
3381         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3382         cgraph_output_pending_asms.
3383
3384 2006-01-28  Zack Weinberg  <zackw@panix.com>
3385
3386         * c.opt: Add -W(no-)overlength-strings.
3387         * doc/invoke.texi: Document it.
3388         * c-opts.c (c_common_handle_option): -pedantic implies
3389         -Woverlength-strings, if not explicitly disabled already.
3390         (c_common_post_options): -Woverlength-strings defaults to off, and
3391         is always off for C++.
3392         * c-common.c (fix_string_type): Issue warning about strings longer
3393         than is portable only if warn_overlength_strings.  Rearrange code
3394         a little for clarity.
3395         * configure.in: Check for -Wno-overlength-strings as well before
3396         enabling -pedantic in stage 1.
3397         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3398         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3399
3400         * genconditions.c (write_header, write_one_condition)
3401         (write_conditions, write_writer): Consolidate very long strings
3402         that were broken up to fit in C89 portable limit.  Don't use
3403         printf when fputs will do.
3404
3405 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3406
3407         * combine.c (simplify_comparison <AND>): Check
3408         TRULY_NOOP_TRUNCATION before start using a subreg.
3409
3410         * config/mips/mips.md (*branch_zero<mode>,
3411         *branch_zero<mode>_inverted, *branch_equality<mode>,
3412         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3413         Remove mode check from comparisons.
3414
3415 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3416
3417         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3418
3419 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3420
3421         * expmed.c (const_mult_add_overflow_p): Remove.
3422         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3423
3424         * recog.c (validate_replace_rtx_subexp): Remove.
3425         * recog.h: Remove the prototype for
3426         validate_replace_rtx_subexp.
3427
3428         * integrate.h: Remove the prototype for
3429         copy_decl_for_inlining.
3430         * rtl.h: Remove the prototype for mark_constant_function.
3431         * tree-vectorizer.h: Remove the prototype for
3432         vect_strip_conversion.
3433
3434         * modulo-sched.c (create_partial_schedule,
3435         free_partial_schedule, reset_partial_schedule): Make them
3436         static.
3437
3438         * hooks.c (hook_bool_rtx_int_false): Remove.
3439         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3440
3441 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3442
3443         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3444         and -mlong-double-128 are incompatible.
3445         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3446         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3447         (TARGET_LIBGCC2_CFLAGS): Define.
3448         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3449         (TARGET_LIBGCC2_CFLAGS): Same.
3450         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3451
3452 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3453
3454         PR c/19606.
3455         * c-typeck.c (build_binary_op): Perform implicit casts of
3456         operands before shortening them.
3457
3458         * cfgloopmanip.c (split_loop_bb): Remove.
3459         * cfgloop.h: Remove the prototype for split_loop_bb.
3460
3461         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3462         * cfgloop.h: Remove the prototype for
3463         flow_loop_outside_edge_p.
3464
3465         * emit-rtl.c (init_virtual_regs): Make it static.
3466         * function.h: Remove the prototype for init_virtual_regs.
3467
3468         * recog.c (peephole2_optimize): Make it static.
3469         * recog.h: Remove the prototype for peephole2_optimize.
3470
3471 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3472
3473         * df-scan.c (df_record_entry_block_defs): Check if
3474         INCOMING_RETURN_ADDR_RTX is defined.
3475
3476 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3477             Kenneth Zadeck <zadeck@naturalbridge.com>
3478
3479         PR rtl-optimization/24762
3480         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3481         * targhooks.c (hook_void_bitmap): New hook prototype.
3482         * targhoohs.h (hook_void_bitmap): Ditto.
3483         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3484         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3485         * target.h (live_on_entry): New function pointer.
3486         * df-scan.c (df_all_hard_regs): Removed.
3487         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3488         (df_scan_free_internal): Added df->entry_block_defs.
3489         (df_scan_alloc): Ditto.
3490         (df_scan_dump): Ditto.
3491         (df_uses_record): Plumbed flag field properly thru calls.
3492         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3493         This part fixes PR24762.
3494         (df_bb_refs_record): Added code to make the frame and arg
3495         pointers live in EH blocks.
3496         (df_refs_record): Added call to df_record_entry_block_defs.
3497         (df_record_entry_block_defs): New function.
3498         * df-core.c: Added comments to describe new artifical defs.
3499         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3500         (entry_block_defs): New field in struct df.
3501         (df_all_hard_regs): Deleted.
3502         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3503         * df-problems.c (df_ru_bb_local_compute_process_def):
3504         Added code to handle artifical defs in the entry to a function.
3505         (df_ru_bb_local_compute): Ditto.
3506         (df_rd_bb_local_compute_process_def):  Ditto.
3507         (df_rd_bb_local_compute): Ditto.
3508         (df_lr_bb_local_compute): Ditto.
3509         (df_ur_bb_local_compute): Ditto.
3510         (df_urec_bb_local_compute):  Ditto.
3511         (df_chain_create_bb):  Ditto.
3512         (df_ur_local_finalize): Removed entry.
3513         (df_urec_init): Ditto.
3514         (df_urec_local_finalize): Ditto.
3515         (df_ri_bb_compute): Added detection of last use of pseudos.
3516         * Makefile.in (df-scan.o): Updated dependencies.
3517         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3518         * config/mips/mips.c (mips_set_live_on_entry): Added.
3519         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3520         for target hook.
3521         * dce.c (marked_insn_p): Added code to handle artifical defs.
3522
3523 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3524
3525         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3526         intrinsic.
3527         (_mm_cvtsi128_si64): Likewise.
3528         (_mm_cvtsd_si64): Likewise.
3529         (_mm_cvttsd_si64): Likewise.
3530         (_mm_cvtsi64_sd): Likewise.
3531         (_mm_cvtsi64_si128): Likewise.
3532         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3533         (_mm_cvtsi64_m64): Likewise.
3534         (_m_to_int64): Likewise.
3535         (_mm_cvtm64_si64): Likewise.
3536         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3537         (_mm_cvttss_si64): Likewise.
3538         (_mm_cvtsi64_ss): Likewise.
3539         (_mm_cvtss_f32): Likewise.
3540
3541 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3542
3543         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3544         for pragma redefine_extname.
3545
3546 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3547
3548         PR target/25864
3549         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3550         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3551         -mno-minimal-toc to previous content.
3552         (bispecs): Remove goal.
3553         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3554         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3555         compatibility aliases on powerpc-*-*gnu*.
3556         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3557         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3558         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3559         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3560         (ldblspecs): New goal.
3561         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3562         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3563         _df_to_tf.
3564         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3565         L_sf_to_tf or L_df_to_tf is defined.
3566
3567 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3568             Alan Modra  <amodra@bigpond.net.au>
3569
3570         PR target/25864
3571         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3572         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3573         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3574         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3575         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3576         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3577         (rs6000_override_options): Initialize rs6000_ieeequad.
3578         Initialize TFmode format to ibm_extended_format if not
3579         TARGET_IEEEQUAD.
3580         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3581         ieeelongdouble.
3582         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3583         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3584         (function_arg_advance): IBM long double passed in two FPRs, not
3585         split.
3586         (function_arg): IBM long double passed in FPRs.
3587         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3588         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3589         Only multireg GPR aligned.
3590         (rs6000_init_libfuncs): Enable IBM long double functions if not
3591         IEEEQUAD.
3592         (rs6000_generate_compare): Use IBM long double compare if not
3593         TARGET_IEEEQUAD.
3594         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3595         (TARGET_IEEEQUAD): Define.
3596         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3597         not TARGET_IEEEQUAD.
3598         * config/rs6000/rs6000.md: Enable TFmode patterns if
3599         !TARGET_IEEEQUAD.
3600         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3601         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3602         and -mlong-double-128 are incompatible.
3603         * doc/invoke.texi (-mabi): Collect options together.  Add
3604         ibmlongdouble and ieeelongdouble.
3605
3606 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3607
3608         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3609         opaque type.
3610         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3611         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3612         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3613         * rtl.h (rtunion_def): Remove rt_ptr.
3614         (X0PTR): Delete.
3615         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3616         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3617         * config/i386/winnt.c (i386_pe_mark_dllexport)
3618         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3619
3620 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3621
3622         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3623
3624 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3625
3626         PR other/24829
3627         PR target/24831
3628         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3629         pthread_key_delete.  From John David Anglin.  gthrw-ify
3630         pthread_getunique_np only if it it's not a macro.  Delete
3631         UNUSED macro.
3632         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3633         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3634         __gthread_objc_condition_signal, __gthread_key_delete): Add
3635         "__attribute__ ((__unused__))" to unused arguments.
3636         (__gthread_recursive_mutex_init_function): Add missing return.
3637         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3638         gthr-posix95.h: Use macro-based approach for name redirection
3639         on targets missing weakref.
3640
3641 2006-01-26  Zack Weinberg  <zackw@panix.com>
3642
3643         * genconditions.c (write_header): In generated code, #ifdef out
3644         all includes and fake declarations, except includes of bconfig.h
3645         and system.h, unless GCC_VERSION >= 3001.  Do not include
3646         gensupport.h in any case.
3647         (write_conditions): Generate a definition of struct c_test.  Add
3648         a comment to the generated #endif.
3649         (write_one_condition): Escape backslashes in string too.
3650         (write_writer): Generated code must escape backslashes and quote
3651         marks (but not newlines) in the strings it writes.
3652         * Makefile.in (build/gencondmd.o): Update dependencies.
3653
3654 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3655
3656         PR target/25961
3657         * Makefile.in (insn-automata.o): Add header file dependencies.
3658         * genautomata.c: Add includes.
3659
3660 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3661
3662         PR target/25961
3663         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3664
3665 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3666
3667         * configure.ac: Expect target tools paths to be passed from the toplevel
3668         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3669         AS_SET_VAR_IF.
3670         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3671
3672 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3673
3674         PR c/25892
3675         * c.opt (Wpointer-sign): Init to -1.
3676         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3677         OPT_pedantic, to 0 otherwise.
3678         * doc/invoke.texi: Update.
3679
3680 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3681
3682         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3683         constants provided by 80387 instructions in the destination mode.
3684
3685 2006-01-26  Richard Guenther  <rguenther@suse.de>
3686             Andrew Pinski  <pinskia@physics.uc.edu>
3687
3688         PR tree-opt/21470
3689         partial PR tree-opt/17064
3690         * tree-ssa-structalias.c (intra_create_variable_infos):
3691         Create heap variables for incoming parameters if
3692         flag_argument_noalias > 1.
3693         (find_what_p_points_to): Look through default defs of
3694         parameter decls.
3695
3696 2006-01-26  Jeff Law  <law@redhat.com>
3697
3698         PR ada/25900
3699         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3700         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3701         within the VR_RANGE, use the VR_RANGE as the result, not the
3702         VR_ANTI_RANGE.
3703         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3704         bounds for the type.
3705
3706 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3707
3708         * tree-ssa-alias.c (maybe_create_global_var): Change
3709         subvar walking to an assertion that we don't have subvar'd variables.
3710
3711 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3712
3713         PR C/25861
3714         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3715         Use a new variable, inner.  PARM_DECLs are always non-weak.
3716
3717 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3718
3719         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3720         --disable-checking.
3721
3722 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3723
3724         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3725
3726 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3727
3728         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3729         (smax_insn, smin_insn, smax_0, smin_0): New.
3730
3731 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3732
3733         PR target/25947
3734         * config/cris/cris.c (cris_order_for_addsi3): New function.
3735         * config/cris/cris-protos.h: Prototype it.
3736         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3737         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3738         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3739         (split for "op.S1 [rx=rx+i],ry (swapped)")
3740         (split for "op(s|u).S1 [rx=rx+i],ry")
3741         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3742         Apply cris_order_for_addsi3 when generating addsi3 insns.
3743
3744 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3745
3746         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3747         (TREE_BLOCK): Add call to EXPR_CHECK.
3748
3749 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3750
3751         PR 25886
3752         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
3753         * tree-pretty-print.c (dump_omp_clause): Extract from ...
3754         (dump_omp_clauses): ... here.
3755         (dump_generic_node): Handle OMP_CLAUSE.
3756         * tree.c (omp_clause_num_ops): New.
3757         (omp_clause_code_name): New.
3758         (tree_code_size): Handle OMP_CLAUSE.
3759         (tree_size): Likewise.
3760         (make_node): Document handling of OMP_CLAUSE.
3761         (tree_node_structure): Handle OMP_CLAUSE.
3762         (omp_clause_check_failed): New.
3763         (omp_clause_range_check_failed): New.
3764         (omp_clause_operand_check_failed): New.
3765         (build_omp_clause): New.
3766         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
3767         * tree.h (enum omp_clause_code): Declare.
3768         (OMP_CLAUSE_SUBCODE_CHECK): Define.
3769         (OMP_CLAUSE_RANGE_CHECK): Define.
3770         (OMP_CLAUSE_ELT_CHECK): Define.
3771         (omp_clause_check_failed): Declare.
3772         (omp_clause_operand_check_failed): Declare.
3773         (omp_clause_range_check_failed): Declare.
3774         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
3775         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
3776         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
3777         (OMP_CLAUSE_LASTPRIVATE): Likewise.
3778         (OMP_CLAUSE_IF_EXPR): Likewise.
3779         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
3780         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
3781         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
3782         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
3783         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
3784         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
3785         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
3786         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
3787         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
3788         (OMP_CLAUSE_CODE): Define.
3789         (OMP_CLAUSE_SET_CODE): Define.
3790         (OMP_CLAUSE_CODE): Define.
3791         (OMP_CLAUSE_OPERAND): Define.
3792         (struct tree_omp_clause): Declare.
3793         (union tree_node): Add field 'omp_clause'.
3794         * treestruct.def (TS_OMP_CLAUSE): Define.
3795         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
3796         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
3797         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
3798         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
3799         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
3800         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
3801         (OMP_CLAUSE): Define.
3802         * print-tree.c (print_node): Handle OMP_CLAUSE.
3803         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
3804         * c-typeck.c: Likewise.
3805         * gimplify.c: Likewise.
3806         * c-omp.c: Likewise.
3807         * tree-nested.c: Likewise.
3808         * tree-inline.c: Likewise.
3809         * c-parser.c: Likewise.
3810         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
3811         clauses.
3812
3813 2006-01-25  Roger Sayle  <roger@eyesopen.com>
3814
3815         PR rtl-optimization/25703
3816         * combine.c (try_combine): Handle zero_extract and strict_low_part
3817         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
3818
3819 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
3820
3821         * global.c: Fix comment typos.
3822
3823 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
3824
3825         PR target/25758
3826         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
3827         Use output_addr_const instead of assemble_name.
3828
3829 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
3830
3831         * Makefile.in (sched-vis.o): Update dependencies.
3832         * haifa-sched.c (sched_finish): Clear current_sched_info.
3833         * cfg.c (dump_bb_info): New, split from dump_flow_info.
3834         (dump_flow_info): Call it.
3835         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
3836         a slim RTL dump.
3837         * basic-block.h (dump_bb_info): Declare.
3838         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
3839         option, and apply options only for dump files whose TDF_RTL,
3840         TDF_TREE, or TDF_IPA bits match.
3841         * rtl.h: Declare new functions exported from sched-vis.c.
3842         * sched-vis.c: Enable also if scheduling is not used.
3843         (print_value): Print the mode of registers if not inside scheduling.
3844         (print_insn): Make it work outside the scheduler.  Beautify the output
3845         a bit.
3846         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
3847
3848 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3849
3850         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
3851         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
3852         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
3853         depending on the value of CONSTANT_POOL_ADDRESS_P.
3854         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
3855         SYMBOL_REF_DECL.
3856         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
3857         rather than SYMBOL_REF_DECL.
3858         (rtx_constant_pool): Remove const_rtx_sym_htab.
3859         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
3860         (init_varasm_status): Don't initialize const_rtx_sym_htab.
3861         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
3862         Remove handling of const_rtx_sym_htab.
3863         (find_pool_constant): Delete.
3864         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
3865         rather than find_pool_constant.
3866         (get_pool_constant_for_function): Delete.
3867         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
3868         find_pool_constant.
3869         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
3870         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
3871         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
3872         (SYMBOL_REF_CONSTANT): New macro.
3873         (get_pool_constant_for_function): Delete.
3874         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
3875         rather than SYMBOL_REF_DECL.
3876         (i386_pe_mark_dllimport): Likewise.
3877         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
3878         rather than SYMBOL_REF_DECL.
3879         * config/darwin.c (machopic_indirect_data_reference): Likewise.
3880         (machopic_indirect_call_target): Likewise.
3881
3882 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
3883
3884         * flow.c (delete_noop_moves): Add missing EOL to dump message.
3885
3886 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3887
3888         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
3889
3890 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3891
3892         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
3893
3894 2006-01-24  David Daney  <ddaney@avtrex.com>
3895
3896         PR java/25816
3897         * configure.ac (enable_tls): New enable option.
3898         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
3899         * configure: Regenerate.
3900         * doc/install.texi (--enable-tls): Document new option.
3901         (--disable-tls): Ditto.
3902
3903 2006-01-24  Richard Henderson  <rth@redehat.com>
3904
3905         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
3906         * alias.c (true_dependence): Respect it.
3907         (canon_true_dependence, write_dependence_p): Likewise.
3908         * builtins.c (get_builtin_sync_mem): Set it.
3909
3910 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
3911
3912         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
3913         efficient way.
3914
3915 2006-01-24  DJ Delorie  <dj@redhat.com>
3916
3917         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
3918         for storing constants in single-bit bitfields.
3919
3920 2006-01-25  Ben Elliston  <bje@au.ibm.com>
3921
3922         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
3923
3924 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
3925
3926         PR tree-opt/25860
3927         * tree-ssa-pre.c (phi_translate): Return NULL
3928         for AGGREGATE_TYPE's.
3929
3930 2006-01-24  Zack Weinberg  <zackw@panix.com>
3931
3932         * genautomata.c (process_state_for_insn_equiv_partition):
3933         Use xcalloc for insn_arcs_array.
3934         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
3935         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
3936
3937 2006-01-24  Richard Henderson  <rth@redhat.com>
3938
3939         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
3940         update all callers.
3941
3942 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
3943
3944         PR rtl-optimization/25890
3945         PR rtl-optimization/25905
3946         * combine.c (expand_compound_operation, expand_field_assignment):
3947         Fail if the bitfield's final position is out of bounds.
3948
3949 2006-01-24  Ian Lance Taylor  <ian@airs.com>
3950
3951         PR middle-end/25930
3952         * cgraphunit.c (cgraph_output_in_order): Don't clear
3953         cgraph_asm_nodes until after asm strings have been output.
3954
3955 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
3956
3957         * fix-header.c (read_scan_file): Add new parameter imultilib when
3958         calling register_include_chains.
3959
3960 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
3961
3962         * omp-low.c: Update documentation.
3963
3964 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3965             Daniel Berlin  <dberlin@dberlin.org>
3966
3967         PR tree-opt/25315
3968         PR tree-opt/25857
3969         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
3970         return from the function.
3971
3972 2006-01-22  Zack Weinberg  <zackw@panix.com>
3973
3974         * rtl.def (match_code): Add second argument.
3975         * genpreds.c (write_extract_subexp): New function.
3976         (write_match_code): Add path argument.  Use write_extract_subexp.
3977         (write_predicate_expr): Pass path to write_match_code.
3978         (mark_mode_tests): MATCH_CODE applied to a subexpression does
3979         not perform a mode test.
3980         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
3981         a subexpression does not constrain the top-level code set.
3982         * read-rtl.c (read_rtx_variadic): New function.
3983         (read_rtx_1): Use it; allow AND and IOR to be variadic.
3984         * doc/md.texi: Document new notation.
3985         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
3986         (cmpsi_operand): ... here, using new notation.
3987
3988 2006-01-22  Zack Weinberg  <zackw@panix.com>
3989
3990         * varray.c: Remove GENERATOR_FILE #ifdefs.
3991
3992 2006-01-22  Zack Weinberg  <zackw@panix.com>
3993
3994         * genautomata.c (output_reserved_units_table): Emit nothing if
3995         description->query_units_num is zero.  Remove extra blank line.
3996         (output_cpu_unit_reservation_p): Short circuit
3997         if description->query_units_num is zero.
3998
3999 2006-01-22  Zack Weinberg  <zackw@panix.com>
4000
4001         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
4002         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
4003         nor any of the random handful of variables that used to be necessary
4004         when this program was linked with rtlanal.o.  Prune set of forward
4005         function declarations.
4006         (struct attr_desc): Remove static_p field.
4007         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
4008         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
4009         (attr_string): Do not read the character one past the length of
4010         the string.
4011         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
4012         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
4013         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
4014         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
4015         (make_automaton_attrs): New.
4016         (main): Do not call into genautomata.  Call local gen_bypass
4017         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
4018         Remove special case for insn_alts.
4019         * genautomata.c: Include gensupport.h; not genattrtab.h nor
4020         varray.h (leftover from previous change).  Prune set of forward
4021         function declarations.  Remove state_alts fields from all
4022         structures.  Remove state_alts_table from struct automaton.
4023         Make everything except main static.  Do not maintain num_dfa_decls.
4024         Do not maintain state_alts fields of various structures.
4025         (process_decls): Don't validate condexp for dm_insn_reserv decls.
4026         (add_arc): Remove state_alts argument.  All callers updated.
4027         (output_reserved_units_table): Emit #ifdef here...
4028         (output_tables): ...not here.  Don't generate state_alts tables.
4029         (expand_automata): Don't generate attributes.
4030         (write_automata): Don't generate state_alts functions.
4031         (main): New function.
4032         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
4033         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
4034         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
4035         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
4036         (BYPASS_P_FUNC_NAME, output_state_alts_table)
4037         (output_automata_list_state_alts_code, output_internal_state_alts_func)
4038         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
4039         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
4040         Delete.
4041         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
4042         * genattrtab.h: Delete file.
4043         * Makefile.in (OBJS-common): Add insn-automata.o.
4044         (insn-automata.o): New rule.
4045         (simple_generated_c): Add insn-automata.c.
4046         (build/genattrtab.o, build/genautomata.o): Update dependencies.
4047         (genprogmd): Add automata.
4048         (build/genattrtab): Needs no extra objects nor libraries.
4049         (build/genautomata): Needs build/vec.o and -lm.
4050
4051 2006-01-22  Zack Weinberg  <zackw@panix.com>
4052
4053         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
4054         (output_dfa_max_issue_rate, locked_states_num): Delete.
4055         (struct automaton): Add locked_states field.
4056         (output_dead_lock_vect): Save number of locked states in
4057         automaton->locked_states.  If it is zero, don't print anything.
4058         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
4059         (output_internal_dead_lock_func): Only test the dead_lock_vect
4060         for automata that have locked states.
4061         (output_statistics): Always print the number of locked states for
4062         each automaton.  Calculate total number of locked states here.
4063         (write_automata): Don't call output_dfa_max_issue_rate.
4064         * genattrtab.c: Define length_unit_log as a const variable.
4065         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
4066         max_insn_queue_index const.
4067         * final.c (length_unit_log): Declare const.
4068         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
4069
4070 2006-01-22  Zack Weinberg  <zackw@panix.com>
4071
4072         * genautomata.c:  Include vec.h, not varray.h.
4073         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
4074         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
4075         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
4076         VEC_* macros operating on appropriately typed vectors, or to
4077         malloced arrays when the size is known in advance.  Const-ify
4078         many char* variables and function arguments.  No functional changes.
4079         * Makefile.in (build/varray.o): Delete rule.
4080         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
4081         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
4082
4083 2006-01-22  Zack Weinberg  <zackw@panix.com>
4084
4085         * gensupport.c: Define get_insn_name and record_insn_name here.
4086         (read_md_rtx): Call record_insn_name as appropriate.
4087         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
4088         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
4089         * genpreds.c, genrecog.c: Don't define get_insn_name nor
4090         record_insn_name.
4091         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
4092         (BUILD_VARRAY): Delete.
4093         (genprognormal): Rename genprogmd.  Fold in all programs from
4094         genprognoprint; also attrtab.
4095         (build/genattrtab): Just mention genautomata.o and varray.o.
4096         Reorganize a bit, add comments to make the categories clearer.
4097
4098 2006-01-22  Zack Weinberg  <zackw@panix.com>
4099
4100         * genconditions.c (condition_table, add_condition): Delete.
4101         (write_conditions): Don't emit n_insn_conditions nor
4102         insn_elision_unavailable.  Issue the gcc version #ifdef here,
4103         inside the table, with no #else clause ...
4104         (write_header): ...not here.
4105         (write_writer): New function.
4106         (main): Don't initialize condition_table.  Use add_c_test.
4107         Call write_writer.
4108         * gensupport.c (init_md_reader_args_cb): Handle multiple input
4109         files on the command line.
4110         (maybe_eval_c_test): Don't check insn_elision_unavailable.
4111         Return -1 if there is no entry in the table, don't abort.
4112         (add_c_test, traverse_c_tests): New functions.
4113         * gensupport.h (insn_elision_unavailable, insn_conditions)
4114         (n_insn_conditions): Delete declarations.
4115         (add_c_test, traverse_c_tests): Declare.
4116         * read-rtl.c: Include gensupport.h.
4117         (read_conditions): New function.
4118         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
4119         (read_rtx_1): If we get EOF when we were looking for an initial
4120         open paren, return 0.  Call read_conditions when appropriate.
4121         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
4122         dummy-conditions.o.  Eliminate references to insn-conditions.o,
4123         or change them to build/gencondmd.o, as appropriate.  Remove
4124         insn-constants.h from $(simple_generated_h) and insn-conditions.c
4125         from $(simple_generated_c).  For all files remaining in those
4126         two lists, add insn-conditions.md to the generator command line.
4127         Give insn-constants.h/s-constants their own rules.  Add rules
4128         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
4129         (build/read-rtl.o): Depend on gensupport.h.
4130         (genprognormal): Include preds.
4131         (genprogearly): Rename genprognoprint; only difference is now that
4132         they don't link with $(BUILD_PRINT).
4133         * dummy-conditions.c: Delete.
4134
4135 2006-01-22  Zack Weinberg  <zackw@panix.com>
4136
4137         * genextract.c: Don't include insn-config.h.  Do include vec.h.
4138         Declare vectors of int, char, and locstr.
4139         (locstr): New typedef.
4140         (struct extraction): Make all array fields into bare pointers.
4141         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
4142         (insn_code_number): Delete.
4143         (accum_extract): New struct.
4144         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
4145         (gen_insn): Take insn_code_number as an argument.  Use an
4146         accum_extract structure instead of loading data directly into
4147         a struct extraction, and having to know how big it might get.
4148         (walk_rtx): Operate entirely on an accum_extract structure.
4149         (print_path): Avoid unnecessary use of printf.
4150         (print_header): New function, split out of main.  Distinguish
4151         more carefully between an unrecognizable insn and an insn that
4152         has the code number of a define_expand.
4153         (main): Pass insn_code_number to gen_insn.  Call print_header
4154         only after parsing.  Avoid unnecessary use of printf.
4155         * Makefile.in (build/vec.o): New rule.
4156         (build/genextract): Depend on build/vec.o.
4157         (build/genextract.o): Don't depend on insn-config.h.
4158
4159 2006-01-22  Zack Weinberg  <zackw@panix.com>
4160
4161         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
4162         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
4163         practical.  Eliminate per-generator-program link rules.
4164
4165 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
4166
4167         PR middle-end/24437
4168         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
4169         with a call expr to ...
4170         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
4171
4172 2006-01-23  Richard Guenther  <rguenther@suse.de>
4173
4174         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
4175         before make_edge with conditional EDGE_TRUE_VALUE.
4176
4177 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
4178         Jan Hubicka  <jh@suse.cz>
4179         Richard Guenther  <rguenther@suse.de>
4180
4181         PR rtl-optimization/25654
4182         * cfgexpand.c (aggregate_contains_union_type): New function.
4183         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
4184         for structure variables that contain a union type.
4185
4186 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
4187
4188         * gengtype.c (new_structure): Return the structure.
4189         (create_option): Add an extra "next" argument.
4190         (create_field): New function.
4191         (adjust_field_rtx_def): Use create_option and create_field.
4192         Remove a now-unnecessary call to find_structure.
4193         (adjust_field_tree_def): Likewise.
4194         (note_yacc_type): Remove an unnecessary call to find_structure.
4195         * gengtype.h (new_structure): Return the structure.
4196         (create_option): Add an extra argument.
4197         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
4198         (option): Adjust calls to create_option.
4199
4200 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
4201
4202         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
4203
4204 2006-01-22  Paul Brook  <paul@codesourcery.com>
4205         Peter Barada  <peter@the-baradas.com>
4206
4207         * config/m68k/m68k.md: Add Coldfire FPU support.
4208         Define FP mode macro and associated attributes.
4209         Use it for float mode patterns.
4210         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
4211         (LIBCALL_VALUE): Use m68k_libcall_value.
4212         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
4213         (m68k_function_value): Ditto.
4214         (emit_move_sequence): Ditto.
4215         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
4216         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
4217         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
4218         (MULTILIB_EXCEPTIONS): Ditto.
4219         * config/m68k/m68k.opt: Add mcfv4e.
4220         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
4221         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
4222         (m68k_output_function_prologue): Save ColdFire FPU registers.
4223         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
4224         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
4225         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
4226         ColdFire FPU registers.
4227         (m68k_libcall_value, m68k_function_value): New functions.
4228         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
4229         (LIBCALL_VALUE): Use m68k_libcall_value.
4230         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
4231         (MASK_COLDFIRE): Add MASK_CFV4E.
4232         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
4233         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
4234         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
4235         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
4236         (GO_IF_LEGITIMATE_ADDRESS): Use it.
4237         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
4238         * doc/invoke.tex: Document -mcfv4e on m68k.
4239
4240 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
4241
4242         * doc/contribute.texi: Change CVS to SVN and update the corresponding
4243         URL.
4244
4245 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4246
4247         PR c++/16190
4248         * c-opts.c (c_common_handle_option): Don't include
4249         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
4250         * doc/invoke.texi (C++ Dialect Options): Document that
4251         -Wnon-virtual-dtor is no longer included in -Wall.
4252
4253 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
4254
4255         * gcov.c (print_version), gcov-dump.c (print_version),
4256         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
4257         dates.
4258
4259 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
4260
4261         * df-scan.c (problem_SCAN): Added NULL reset function.
4262         (df_scan_reset_blocks): Added code to call reset block function
4263         (df_bb_refs_delete) Fixed comment.
4264         (df_insn_refs_delete): Made tolerant of deleting non existent info
4265         for dataflow problems that need to be reset.
4266         * df-core.c (df_set_blocks): Ditto.
4267         * df.h (struct df_problem): Added reset_fun.
4268         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
4269         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
4270         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
4271         functions to clear out all references to def-use or use-def chains.
4272
4273 2006-01-21  Ben Elliston  <bje@au.ibm.com>
4274
4275         * varasm.c (assemble_real): Initialise data array.
4276
4277 2006-01-20  Paul Brook  <paul@codesourcery.com>
4278
4279         Merge from csl-arm-branch.
4280         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
4281         * config/arm/arm.md (movdi): Force operands[1] to a register
4282         if we have a non-register source.
4283         (*arm_movdi, *movdf_soft_insn): Require that one of the
4284         operands be a register.
4285         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
4286         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
4287
4288 2006-01-20  DJ Delorie  <dj@redhat.com>
4289
4290         * varasm.c (initialize_constant_valid_p): Allow pointers
4291         initialized from integer constants of lesser precision.
4292         (output_constant): Allow non-int-sized pointer modes to be
4293         initialized from integer constants.
4294
4295 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
4296
4297         PR libstdc++/25524
4298         * cppdefault.h (struct default_include): Add multilib flag.
4299         * cppdefault.c (cpp_include_defaults): Set it.
4300         * c.opt (-imultilib): New option.
4301         * c-opts.c (imultilib): New.
4302         (c_common_handle_option): Handle -imultilib.
4303         (c_common_post_options): Likewise.
4304         * c-incpath.c (add_standard_paths, register_include_chains):
4305         Likewise.
4306         * c-incpath.h (register_include_chains): Add extra parameter.
4307         * gcc.c (do_spec_1): Generate -imultilib option.
4308         (The Specs Language): Update %I description.
4309         (process_command): Update copyright notice.
4310         * doc/cppopts.texi (-imultilib): Document.
4311         * doc/invoke.texi (-imultilib): Include in option summary.
4312         (%I): Update specs documentation.
4313
4314 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4315
4316         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
4317
4318 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
4319
4320         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
4321         label numbers.
4322
4323 2006-01-20  Richard Guenther  <rguenther@suse.de>
4324         Steven Bosscher <stevenb.gcc@gmail.com>
4325
4326         PR rtl-optimization/24626
4327         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
4328         EDGE_TRUE_VALUE if in RTL mode.
4329
4330         Revert
4331         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
4332         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
4333
4334 2006-01-20  Dirk Mueller  <dmueller@suse.com>
4335
4336         PR c++/5520
4337         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
4338         instead of a special NOP marker.
4339         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
4340         NOP marker handling.
4341         * c-common.h (empty_body_warning): Add forward declaration.
4342         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
4343         Now uses IS_EMPTY_STMT() instead of special NOP markers.
4344
4345 2006-01-20  Paul Brook  <paul@codesourcery.com>
4346
4347         * Makefile.in (lang_checks): Keep going if mkdir fails.
4348
4349 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4350
4351         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
4352         be able to clean out basic block when not necessary.
4353         (df_scan_free): Fixed to properly delete information if df is
4354         unused before calling df_finish.
4355         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
4356         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
4357         or comment typos.
4358         (df_bb_refs_delete): New function.
4359         (df_refs_delete): Moved per block code to df_bb_refs_delete.
4360         * df-core.c (df_set_blocks): Added code to properly clean out
4361         unused blocks if they are not part of the blocks to consider.
4362         Added additional null check.
4363         (df_compact_blocks): Added basic block parameter to free_bb_fun to
4364         be able to clean out basic block when not necessary
4365         * df.h (df_free_bb_function): Ditto.
4366         (df_bb_refs_delete): New function.
4367         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
4368         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
4369         basic block parameter to be able to clean out basic block when not
4370         necessary.
4371         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
4372         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
4373         Fixed to properly delete information if df is unused before
4374         calling df_finish.
4375
4376 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
4377
4378         PR rtl-optimization/25799
4379         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
4380         Corrected confluence operator to remove bits from op2 before oring
4381         with op1 rather than removing bits from op1.
4382         (df_ru_transfer_function): Corrected test on wrong bitmap which
4383         caused infinite loop.  Both of these problems were introduced in
4384         the dataflow rewrite.
4385
4386 2006-01-19  DJ Delorie  <dj@redhat.com>
4387
4388         * reload1.c (find_reload_regs): Note the details of reload
4389         failures in the dump file.
4390         (spill_failure): Likewise.
4391
4392 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
4393
4394         * loop-iv.c: Include df.h and hashtab.h.
4395         (enum iv_grd_result): New enum.
4396         (DF_REF_IV, DF_REF_IV_SET): New macros.
4397         (struct biv_entry): New.
4398         (df, bivs): New global variables.
4399         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
4400         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
4401         Removed.
4402         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
4403         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
4404         analyzed_for_bivness_p, record_biv): New functions.
4405         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
4406         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
4407         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
4408         UD chains.
4409         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
4410         analysed.
4411         (iv_number_of_iterations): Use new interface to iv analysis.
4412         * loop-unroll.c: Do not include varray.h.
4413         (analyze_iv_to_split_insn): Use new interface to iv
4414         analysis.
4415         * loop-unswitch.c (may_unswitch_on): Ditto.
4416         * df.c (df_bitmaps_free): Only work for bbs for that structures are
4417         allocated.
4418         (df_bb_modify): Realloc tables to the new index.
4419         (df_find_use): New function.
4420         * df.h (df_find_use): Declare.
4421         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
4422         outmode.
4423         * cfgloop.h (struct rtx_iv): Remove analysed field.
4424         (iv_get_reaching_def): Removed.
4425         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
4426         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
4427         (loop-iv.o): Add df.h and hashtab.h dependency.
4428         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
4429
4430 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
4431
4432         PR target/25668
4433         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
4434         Double TFmode.
4435         (__floatundisf, __floatundidf): Likewise.
4436         * libgcc2.h (IS_IBM_EXTENDED): Define.
4437
4438 2006-01-19  DJ Delorie  <dj@redhat.com>
4439
4440         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
4441
4442 2006-01-19  Paul Brook  <paul@codesourcery.com>
4443
4444         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
4445         as nothrow when unwinding tables are disabled.
4446
4447 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4448
4449         PR testsuite/25171
4450         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
4451         of bit-field" when in system header.
4452
4453 2006-01-19  DJ Delorie  <dj@redhat.com>
4454
4455         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
4456         the 16 bit shift limit of the m16c.
4457
4458 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
4459
4460         PR target/22099
4461         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
4462         * config/i386/i386.c (output_set_got): Output the label if we have one
4463         for the TARGET_DEEP_BRANCH_PREDICTION case.
4464
4465 2006-01-19  Jan Hubicka  <jh@suse.cz>
4466             H.J. Lu  <hongjiu.lu@intel.com>
4467             Evandro Menezes <evandro.menezes@amd.com>
4468
4469         * invoke.texi (generic): Document
4470         (i686) Update.
4471         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
4472         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
4473         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
4474         (x86_use_incdec, x86_pad_returns): New variables
4475         (TARGET_CPU_DEFAULT_generic): New constant
4476         (TARGET_CPU_DEFAULT_NAMES): Add generic.
4477         (enum processor_type): Add generic32 and generic64.
4478         * i386.md (cpu attribute): Add generic32/generic64
4479         (movhi splitter): Behave sanely when both partial_reg_dependency and
4480         partial_reg_stall are set.
4481         (K8 splitters): Enable for generic as well.
4482         * predicates.md (incdec_operand): Use TARGET_INCDEC
4483         (aligned_operand): Avoid memory mismatch stalls.
4484         * athlon.md: Enable for generic64, new patterns for 128bit moves.
4485         * ppro.md: Enable for generic32
4486         * i386.c (generic64_cost, generic32_cost): New.
4487         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
4488         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
4489         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
4490         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
4491         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
4492         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
4493         x86_partial_reg_dependency, x86_memory_mismatch_stall,
4494         x86_accumulate_outgoing_args, x86_prologue_using_move,
4495         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
4496         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
4497         Enable for generic.
4498         (x86_use_incdec, x86_pad_returns): New.
4499         (override_options): Add generic32 and generic64, translate "generic"
4500         to generic32/generic64 and "i686" to "generic32", refuse
4501         "generic32"/"generic64" as arch target.
4502         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
4503         (ix86_reorg): Honor PAD_RETURNS.
4504
4505 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
4506
4507         * tree-pretty-print.c (dump_generic_node): Handle
4508         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
4509         * cgraph.c (cgraph_expand_queue): Rename from
4510         cgraph_analyze_queue.  Update all users.
4511         * cgraphunit.c (cgraph_assemble_pending_functions): Process
4512         cgraph_expand_queue.
4513         (cgraph_expand_all_functions): Likewise.
4514         (cgraph_finalize_pending_functions): Remove.  Update callers.
4515
4516         * tree.h (OMP_DIRECTIVE_P): Define.
4517         (OMP_PARALLEL_FN): Define.
4518         (OMP_PARALLEL_DATA_ARG): Define.
4519         (OMP_SECTIONS_SECTIONS): Define.
4520         * tree-pass.h (pass_expand_omp): Declare.
4521         * omp-low.c (struct omp_region): Declare.
4522         (struct omp_context): Remove fields 'parallel_type',
4523         'parallel_start_ix' and 'parallel_start_additional_args'.
4524         Update all users.
4525         (struct omp_for_data): Rename from struct expand_omp_for_data.
4526         (omp_regions): New static variable.
4527         (root_omp_region): New static variable.
4528         (find_omp_clause): Make static.
4529         (is_in_combined_parallel_ctx): Remove.
4530         (is_combined_parallel): New.
4531         (extract_omp_for_data): Move earlier in the file.
4532         (workshare_safe_to_combine_p): New.
4533         (get_ws_args_for): New.
4534         (determine_parallel_type): Move earlier in the file.
4535         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
4536         child function.
4537         (omp_copy_decl): Likewise.
4538         (create_omp_child_function): Likewise.
4539         (lookup_omp_region): New.
4540         (dump_omp_region): New.
4541         (debug_omp_region): New.
4542         (debug_all_omp_regions): New.
4543         (new_omp_region): New.
4544         (scan_omp_parallel): If parallel_nesting_level > 1, the
4545         directive is nested within another parallel directive.
4546         Set OMP_PARALLEL_FN.
4547         (scan_omp_for): Do not try to handle combined parallel+for
4548         cases.
4549         Remove FIXME comment.
4550         (scan_omp_nested): Remove.
4551         (scan_omp_1): Do not call scan_omp_nested when
4552         parallel_nesting_level is > 1.
4553         Do not change the DECL_CONTEXT of local variables found.
4554         (lookup_decl_in_outer_ctx): New.
4555         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
4556         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
4557         (lower_reduction_clauses): Rename from expand_reduction_clauses.
4558         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
4559         If CTX is nested, lookup VAR in the outer context when
4560         building copy assignment.
4561         (lower_send_clauses): Rename from expand_send_clauses.
4562         If CTX is nested, lookup VAR in the outer context when
4563         building copy assignments.
4564         (lower_send_shared_vars): Rename from expand_send_shared_vars.
4565         If CTX is nested, lookup VAR in the outer context when
4566         building copy assignments.
4567         (expand_parallel_call): Rename from build_parallel_call.
4568         Handle combined parallel+workshare cases.
4569         Re-implement to emit code into the CFG.
4570         (list2chain): New.
4571         (expand_omp_parallel): Re-implement to emit code into the CFG.
4572         Call move_sese_region_to_fn to outline the sub-graph
4573         containing the parallel region.
4574         (expand_omp_for_1): Remove.
4575         (expand_omp_for_generic): Re-implement to emit code into the
4576         CFG.
4577         (expand_omp_for_static_nochunk): Likewise.
4578         (expand_omp_for_static_chunk): Likewise.
4579         (expand_omp_for): Likewise.
4580         (expand_omp_sections): Likewise.
4581         (remove_exit_barriers): New.
4582         (expand_omp_synch): New.
4583         (expand_omp): New.
4584         (build_omp_regions_1): New.
4585         (build_omp_regions): New.
4586         (execute_expand_omp): New.
4587         (gate_expand_omp): New.
4588         (pass_expand_omp): Define.
4589         (lower_omp_sections): Rename from expand_omp_sections.
4590         Set OMP_SECTIONS_SECTIONS.
4591         (lower_omp_single_simple): Rename from expand_omp_single_simple.
4592         (lower_omp_single_copy): Rename from expand_omp_single_copy.
4593         (lower_omp_single): Rename from expand_omp_simple.
4594         (lower_omp_master): Rename from expand_omp_master.
4595         (lower_omp_ordered): Rename from expand_omp_ordered.
4596         (lower_omp_critical): Rename from expand_omp_critical.
4597         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
4598         (lower_omp_for): Re-implement.
4599         (lower_omp_parallel): Re-implement.
4600         (lower_regimplify): Rename from expand_regimplify.
4601         (lower_omp_1): Rename from expand_omp_1.
4602         If there are syntax errors in the program, replace every
4603         OpenMP directive with NOP.
4604         Call lower_omp_* instead of expand_omp_*.
4605         (lower_omp): Rename from expand_omp.
4606
4607         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
4608         * tree-gimple.h (enum omp_parallel_type): Remove.
4609         (gimple_boolify): Declare extern.
4610         (find_omp_clause, determine_parallel_type): Remove.
4611
4612         * gimple-low.c (lower_omp_directive): New.
4613         (lower_stmt): Call it.
4614         (record_vars_into): Move from ...
4615         (record_vars): ... here.
4616         Call record_vars_into with current_function_decl.
4617
4618         * gimplify.c (struct gimplify_ctx): Remove fields
4619         combined_pre_p and combined_ctxp.  Update users.
4620         (get_formal_tmp_var): Add documentation.
4621         (gimple_boolify): Make extern.
4622         (gimplify_expr_in_ctx): Remove.  Update callers.
4623         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
4624         will always be a BIND_EXPR.
4625         (gimplify_expr): Handle OMP_RETURN_EXPR.
4626         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
4627         (OMP_PARALLEL): Add 3 operands.
4628         (OMP_SECTIONS): Add 1 operand.
4629         (OMP_RETURN_EXPR): Define.
4630
4631         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
4632         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
4633         * tree-iterator.c (alloc_stmt_list): Assert that we are not
4634         creating a circular free list.
4635         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
4636
4637         * tree-flow.h (move_sese_region_to_fn): Declare.
4638         (record_vars_into): Declare.
4639         * tree-cfg.c (make_omp_sections_edges): New.
4640         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
4641         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
4642         OMP_SECTIONS and OMP_SECTION.
4643         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
4644         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
4645         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
4646         (gather_blocks_in_sese_region): New.
4647         (struct move_stmt_d): Declare.
4648         (move_stmt_r): New.
4649         (move_block_to_fn): New.
4650         (move_sese_region_to_fn): New.
4651
4652         * passes.c (init_optimization_passes): Schedule
4653         pass_expand_omp after pass_init_datastructures.
4654
4655         * tree-ssa-operands.c (get_expr_operands): Handle
4656         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
4657         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
4658
4659 2006-01-19  Jeff Law  <law@redhat.com>
4660
4661         * tree-vrp.c (extract_range_from_assert): Refine the result range
4662         if the variable referenced by the ASSERT_EXPR has a range and
4663         either the tentative result range or the previous range is a
4664         VR_ANTI_RANGE.
4665
4666 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4667
4668         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
4669
4670 2006-01-19  Jan Hubicka  <jh@suse.cz>
4671
4672         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
4673
4674 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
4675
4676         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
4677         (expand_compound_operation, expand_field_assignment): Fail if the
4678         bit lengths of an extract operation are out of range.
4679         (make_extraction): Compute wanted_inner_mode based on the position
4680         and length of the extraction.  Make it extraction_mode for non-constant
4681         positions, and do not modify offset in that case.  When generating a
4682         new MEM, use a mode that can hold the extraction while keeping correct
4683         alignment.  Remove code that supported MEMs wrapped by USEs.
4684         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
4685
4686 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
4687
4688         * config/s390/s390.md ("Y", "y"): New mode attribute.
4689         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
4690         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
4691         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
4692         "*addsi3_imm_cc", "*addsi3_carry1_cc",
4693         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
4694         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
4695         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
4696         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
4697         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
4698         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
4699         "addsi3", "subsi3"): Insn patterns removed.
4700         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
4701         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
4702         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
4703         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
4704         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
4705         "*sub<mode>3_cconly2"): New insn patterns.
4706         ("addsi3", "subsi3"): New expanders.
4707
4708 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
4709
4710         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
4711         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
4712         existing STMT_VINFO_VECTYPE if available.
4713         (vect_mark_relevant): Add special handling for stmts that are
4714         marked as STMT_VINFO_IN_PATTERN_P.
4715         (vect_analyze_loop): Call vect_pattern_recog.
4716         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
4717         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
4718         stmt_info.
4719         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
4720         (vect_recog_func_ptr): New function-pointer type.
4721         * tree-vect-patterns.c: New file.
4722         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
4723         (vect_recog_dot_prod_pattern, vect_pattern_recog):
4724         (vect_pattern_recog_1): New functions.
4725         (vect_pattern_recog_funcs): New array of function pointers.
4726
4727         * tree-vectorizer.h (ternary_op): New enum value.
4728         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
4729         declaration. Revised documentation. Removed redundant dump prints.
4730         Removed redundant argument. Added support for reduction patterns.
4731         (vectorizable_reduction): Added support for reduction patterns.
4732         (vect_transform_stmt): Added support for patterns.
4733
4734         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
4735         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
4736         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
4737         (expand_widen_pattern_expr): New function.
4738         (init_optabs): Initialize new optabs udot_prod_optab,
4739         sdot_prod_optab.
4740         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
4741         (sdot_prod_optab, udot_prod_optab): Define new optabs.
4742         (expand_widen_pattern_expr): New function declaration.
4743         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
4744         tree-codes.
4745         * tree-inline.c (estimate_num_insns_1): Added cases for new
4746         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4747         * tree-pretty-print.c (dump_generic_node): Likewise.
4748         (op_prio): Likewise.
4749         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
4750         * tree-ssa-operands.c (get_expr_operands): Added case for
4751         DOT_PROD_EXPR.
4752         * tree-vect-patterns.c (widened_name_p): New function.
4753         (vect_recog_dot_prod_pattern): Added function implementation.
4754         * tree-vect-transform.c (get_initial_def_for_reduction): Added
4755         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
4756         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
4757         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
4758
4759         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
4760         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
4761         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
4762         (init_optabs): Initialize new optabs widen_ssum_optab,
4763         widen_usum_optab.
4764         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
4765         (widen_ssum_optab, widen_usum_optab): Define new optabs.
4766         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
4767         use instead of type of def.
4768         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
4769         function implementation.
4770         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
4771         widen_ssumv8hi): New.
4772
4773         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
4774         patterns.
4775
4776 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
4777
4778         PR c/25805
4779         * c-decl.c (add_flexible_array_elts_to_size): New function.
4780         (finish_decl): Use it.
4781
4782 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
4783
4784         * diagnostic.h: Include options.h.
4785         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
4786         dependancies for diagnostic.h.
4787         * Makefile.in (DIAGNOSTIC_H): Add options.h.
4788
4789 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
4790
4791         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
4792         (ssa_ro_call_cache_valid): Ditto.
4793         * tree-ssa-alias.c (sort_tags_by_id): New function.
4794         (init_transitive_clobber_worklist): Ditto.
4795         (add_to_worklist): Ditto.
4796         (mark_aliases_call_clobbered): Ditto.
4797         (compute_tag_properties): Ditto.
4798         (set_initial_properties): Ditto.
4799         (compute_call_clobbered): Ditto.
4800         (compute_may_aliases):  Call compute_call_clobbered and grouping.
4801         (compute_flow_sensitive_aliasing): Remove clobbering related code.
4802         (compute_flow_insensitive_aliasing): Grouping now happens in our
4803         caller.
4804         (setup_pointers_and_addressables): Remove clobbering related code.
4805         (add_may_alias): Ditto.
4806         (replace_may_alias): Ditto.
4807         (get_nmt_for): Ditto.
4808         (create_global_var):
4809         (is_escape_site): Return an escape_type enumeration.
4810         * tree-flow-inline.h (is_call_clobbered):  Global var does not
4811         imply call clobbered.
4812         (mark_call_clobbered): Take a reason for marking this. Remove
4813         marking of globalness, and cache invalidation.
4814         (clear_call_clobbered): Remove cache invalidation code.
4815         * tree-dfa.c (dump_variable): If details is on, dump the reason
4816         for escaping.
4817         * tree-outof-ssa.c (create_temp): Copy escape mask from original
4818         variable.
4819         * tree-flow.h (struct ptr_info_def): Add escape mask member.
4820         (struct var_ann_d): Ditto.
4821         (enum escape_type): New.
4822         (mark_call_clobbered): Adjust prototype.
4823         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
4824         are never call clobbered.
4825         Record reasons for escaping.
4826         * tree-ssa-structalias.h (is_escape_site): Update prototype.
4827         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
4828         (ssa_ro_call_cache_valid): Ditto.
4829         (clobbered_v_may_defs): Ditto.
4830         (clobbered_vuses): Ditto.
4831         (ro_call_vuses): Ditto.
4832         (clobber_stats): New.
4833         (init_ssa_operands): Zero out clobber stats.
4834         (fini_ssa_operands): Print out clobber stats.
4835         (get_call_expr_operands): Pass callee fndecl to
4836         add_call_read_ops).
4837         (add_call_clobber_ops): Remove use of cache.
4838         Add use of PURE_CONST information.
4839         (add_call_read_ops): Remove use of cache.
4840         Add use of static not_read information.
4841
4842 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
4843
4844         Introduce TLS descriptors for i386 and x86_64.
4845         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
4846         (TARGET_ANY_GNU_TLS): New macro.
4847         (enum tls_dialect): Added TLS_DIALECT_GNU2.
4848         (struct machine_function): Add tls_descriptor_call_expanded_p.
4849         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
4850         (ix86_current_function_calls_tls_descriptor): Likewise.
4851         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
4852         (override_options): Introduce gnu2 tls dialect.
4853         (ix86_frame_pointer_required): Functions containing TLSCALLs are
4854         not leaves.
4855         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
4856         Likewise.
4857         (legitimize_tls_address): Adjust logic for GNU2 TLS.
4858         (ix86_init_machine_status): Initialize new field.
4859         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
4860         (ix86_tls_module_base): New.
4861         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
4862         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
4863         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
4864         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
4865         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
4866         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
4867         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
4868         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
4869         * config/i386/predicates.md (tls_modbase_operand): New.
4870         (tp_or_register_operand): New.
4871
4872 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
4873
4874         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
4875         (look_for_address_of): Ditto.
4876         (ipa_init): Walk the function decls.
4877         (static_execute): Don't set readonly on FUNCTION_DECL's.
4878
4879 2006-01-18  Roger Sayle  <roger@eyesopen.com>
4880
4881         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
4882         for shifts where the source and destination registers are different.
4883
4884 2006-01-18  Paul Brook  <paul@codesourcery.com>
4885
4886         Merge from csl-arm-branch.
4887         2005-03-14  Julian Brown  <julian@codesourcery.com>
4888         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
4889         (aeabi_llsl): Likewise.
4890         (ashrdi3): Likewise.
4891         (aeabi_lasr): Likewise.
4892         (lshrdi3): Likewise.
4893         (aeabi_llsr): Likewise.
4894         2005-03-10  Julian Brown  <julian@codesourcery.com>
4895         * config.gcc: Disable shared libgcc for SymbianOS.
4896         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
4897
4898 2006-01-18  DJ Delorie  <dj@redhat.com>
4899
4900         * c-pragma.c (handle_pragma_diagnostic): New.
4901         (init_pragma): Register it.
4902         * doc/extend.texi: Document it.
4903
4904         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
4905         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
4906         (diagnostic_context): Add classify_diagnostic[].
4907         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
4908         as errors if they're overridden to DK_WARNING.
4909         (diagnostic_initialize): Initialize classify_diagnostic[].
4910         (diagnostic_set_kind_override): New.
4911         (diagnostic_report_diagnostic): Check for kind changes.
4912         * opts.c (common_handle_option): Take lang_mask.  Update callers.
4913         Handle OPT_Werror_.
4914         * common.opt (Werror=): New.
4915         * doc/invoke.texi: Document -Werror=*
4916
4917 2006-01-18  Jeff Law  <law@redhat.com>
4918
4919         * tree-vrp.c (test_for_singularity): Correct test for new
4920         min limit.  Use operand_equal_p rather than pointer equality
4921         for testing if new min/max values are equal.
4922
4923         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
4924         using range information until after propagation and folding.
4925
4926 2006-01-18  Richard Henderson  <rth@redhat.com>
4927             Aldy Hernandez  <aldyh@redhat.com>
4928             Jakub Jelinek  <jakub@redhat.com>
4929             Diego Novillo  <dnovillo@redhat.com>
4930
4931         * omp-low.c: New file.
4932         * c-omp.c: New file.
4933
4934 2006-01-18  Richard Henderson  <rth@redhat.com>
4935             Jakub Jelinek  <jakub@redhat.com>
4936             Diego Novillo  <dnovillo@redhat.com>
4937
4938         * doc/invoke.texi: Document -fopenmp.
4939         * tree-dump.h (debug_function): Declare.
4940         * hooks.c (hook_bool_tree_bool_false): New function.
4941         (hook_tree_tree_null): Remove.
4942         (hook_tree_tree_tree_null): New.
4943         * hooks.h: Update to match.
4944         * tree-pretty-print.c (debug_tree_chain): New.
4945         (print_generic_expr): Handle TDF_CHAIN.
4946         (dump_generic_node): Handle BLOCK.
4947         Do not abort with incomplete SWITCH_EXPRs.
4948         Do not dump body of an OpenMP directive if TDF_SLIM is given.
4949         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
4950         print space after directive name.
4951         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
4952         Handle OMP_MASTER and OMP_ORDERED.
4953         Handle printing of OMP_BODY just in one place, goto
4954         dump_omp_body in the rest of OMP_* nodes that have
4955         OMP_BODY.
4956         Don't handle clause nodes here.  Update omp statements to
4957         use dump_omp_clauses.
4958         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
4959         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
4960         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
4961         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
4962         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
4963         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
4964         Adjust output for GOMP_PARALLEL.
4965         (dump_omp_clauses): New.
4966         (print_declaration): Dump DECL_VALUE_EXPR.
4967         (op_symbol_1): Split out of op_symbol.
4968         (dumping_stmts): Remove.  Update all users.
4969         * cgraph.c (cgraph_analyze_queue): New.
4970         (cgraph_add_new_function): New.
4971         * cgraph.h (cgraph_analyze_queue): Declare.
4972         (cgraph_add_new_function): Declare.
4973         (cgraph_lower_function): Remove.
4974         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
4975         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
4976         and TYPE_P nodes in its default clause.
4977         (empty_body_p): New.
4978         (tree_range_check_failed): New.
4979         (build5_stat): New.
4980         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
4981         OMP_CLAUSE_REDUCTION_MERGE,
4982         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
4983         OMP_CLAUSE_PRIVATE_DEBUG,
4984         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
4985         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
4986         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
4987         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
4988         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
4989         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
4990         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
4991         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
4992         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
4993         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
4994         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
4995         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
4996         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
4997         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
4998         (TREE_RANGE_CHECK): New.
4999         (empty_body_p): Declare.
5000         (enum omp_clause_default_kind): New.
5001         (build_string_literal): Declare.
5002         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
5003         (build5_stat, build5): Declare.
5004         * tree-pass.h (TDF_CHAIN): Define.
5005         * tree-pass.h (PROP_gimple_lomp): Define.
5006         (pass_lower_omp): Declare.
5007         * diagnostic.h (debug_tree_chain): Declare.
5008         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
5009         mode_for_size.
5010         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
5011         * builtins.c (build_string_literal): Make extern.
5012         * gcc.c (include_spec_function): New.
5013         (static_spec_functions): Add it.
5014         (main): Move load of libgomp.spec ...
5015         (LINK_COMMAND_SPEC): ... here.
5016         (link_gomp_spec): New.
5017         (static_specs): Include it.
5018         (LINK_COMMAND_SPEC): Add link_gomp.
5019         (GOMP_SELF_SPECS): New.
5020         (driver_self_specs): Include it.
5021         (switch_matches): Don't mark inline.
5022         (main): Load libgomp.spec.
5023         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
5024         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
5025         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
5026         * tree-gimple.h (enum omp_parallel): Declare.
5027         (determine_parallel_type): Declare.
5028         (omp_firstprivatize_variable): Declare.
5029         (omp_reduction_init): Declare.
5030         (diagnose_omp_structured_block_errors): Declare.
5031         (struct walk_stmt_info): Add want_return_expr.
5032         (struct walk_stmt_info): Add want_bind_expr, want_locations.
5033         (find_omp_clause): Declare.
5034         (insert_field_into_struct): Declare.
5035         (struct walk_stmt_info): Move from tree-nested.c
5036         (walk_stmts): Declare.
5037         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
5038         to 200505.
5039         * cgraphunit.c (cgraph_lower_function): Make static.
5040         (cgraph_finalize_pending_functions): New.
5041         (cgraph_finalize_function): Call it.
5042         (cgraph_finalize_compilation_unit): Likewise.
5043         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
5044         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
5045         (BT_FN_UINT_UINT): New.
5046         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
5047         DEF_FUNCTION_TYPE_VAR_4): Document.
5048         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
5049         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
5050         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
5051         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
5052         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
5053         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
5054         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
5055         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
5056         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
5057         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
5058         into separate files.
5059         (DEF_GOMP_BUILTIN): New.
5060         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
5061         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
5062         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
5063         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
5064         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
5065         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
5066         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
5067         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
5068         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
5069         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
5070         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
5071         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
5072         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
5073         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
5074         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
5075         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
5076         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
5077         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
5078         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
5079         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
5080         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
5081         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
5082         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
5083         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
5084         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
5085         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
5086         * sync-builtins.def: New file, moved from builtins.def.
5087         * omp-builtins.def: New file, moved from builtins.def.
5088         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
5089         * gimple-low.c (lower_function_body): Clear data.
5090         (lower_stmt): Do not handle COMPOUND_EXPR.
5091         Remove call to print_node_brief.
5092         * c-tree.h (c_finish_omp_clauses): New prototype.
5093         (C_DECL_THREADPRIVATE_P): Define.
5094         (lookup_name_no_remap, c_omp_remap_private): Remove
5095         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
5096         (check_for_loop_decls): Update decl.
5097         (lookup_name_no_remap, c_omp_remap_private): Declare.
5098         (build_indirect_ref, build_modify_expr, pushdecl,
5099         pushdecl_top_level): Move to c-common.h.
5100         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
5101         before the switch, but just in the 2 places that need it.
5102         * c-decl.c (diagnose_mismatched_decls): Do not check for
5103         mismatched thread-local attributes when OLDDECL is marked
5104         threadprivate and NEWDECL has no thread-local attributes.
5105         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
5106         (c_gimple_diagnostics_recursively): Rename from
5107         c_warn_unused_result_recursively.  Invoke
5108         diagnose_omp_structured_block_errors.
5109         (check_for_loop_decls): Return a singular decl found.
5110         * langhooks.c (lhd_omp_predetermined_sharing): Return
5111         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
5112         (lhd_omp_firstprivatize_type_sizes): New.
5113         (lhd_omp_assignment): New.
5114         (lhd_omp_predetermined_sharing): New.
5115         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
5116         (struct lang_hooks_for_types): Add
5117         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
5118         omp_predetermined_sharing, omp_disregard_value_expr,
5119         omp_private_debug_clause, omp_clause_default_ctor,
5120         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
5121         (c_finish_omp_clauses): New.
5122         (c_finish_bc_stmt): Diagnose break within omp for.
5123         (c_begin_omp_parallel, c_finish_omp_parallel): New.
5124         (build_unary_op): Return error_mark after reporting
5125         a readonly_error.
5126         (build_modify_expr): Likewise.
5127         * gimplify.c: Include optabs.h and pointer-set.h.
5128         (enum gimplify_omp_var_data): Declare.
5129         (struct gimplify_omp_ctx): Declare.
5130         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
5131         and combined_ctxp.
5132         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
5133         (push_gimplify_context, pop_gimplify_context): Allow nesting.
5134         (splay_tree_compare_decl_uid): New.
5135         (new_omp_context): New.
5136         (delete_omp_context): New.
5137         (gimple_add_tmp_var): Call omp_add_variable.
5138         (gimplify_bind_expr): Likewise.
5139         (gimplify_var_or_parm_decl): If omp_notice_variable returned
5140         true, disregard DECL_VALUE_EXPR on the decl if any.
5141         (gimplify_expr_in_ctx): New.
5142         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
5143         omp_add_variable, omp_notice_variable, omp_is_private
5144         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
5145         gimplify_adjust_omp_clauses, gimplify_omp_parallel
5146         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
5147         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
5148         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
5149         gimplify_omp_atomic): New.
5150         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
5151         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
5152         OMP_CRITICAL and OMP_ATOMIC.
5153         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
5154         * c-pragma.h (enum pragma_kind): Add
5155         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
5156         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
5157         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
5158         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
5159         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
5160         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
5161         PRAGMA_OMP_THREADPRIVATE.
5162         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
5163         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
5164         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
5165         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
5166         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
5167         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
5168         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
5169         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
5170         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
5171         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
5172         * tree-ssa-dce.c (find_control_dependence): Do not assume that
5173         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
5174         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
5175         OpenMP directives.
5176         (struct nesting_info): Add field_map,
5177         suppress_expansion, debug_var_chain.
5178         (create_nesting_tree): Initialize them.
5179         (lookup_field_for_decl): Use field_map.
5180         (get_nonlocal_debug_decl, get_local_debug_decl): New.
5181         (convert_local_omp_clauses): New.
5182         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
5183         (walk_body): Split out of walk_function.
5184         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
5185         (convert_nonlocal_reference): Handle omp statements.
5186         (convert_local_reference): Likewise.
5187         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
5188         (unnest_nesting_tree): New.
5189         (lower_nested_functions): Call it.
5190         (insert_field_into_struct): Make extern.
5191         (struct walk_stmt_info): Move to tree-gimple.h.
5192         (walk_stmts): Make extern.
5193         * omp-builtins.def: New file.
5194         * tree-iterator.c (expr_only): Clarify comment.
5195         * c-common.h (pushdecl_top_level, pushdecl,
5196         build_modify_expr, build_indirect_ref,
5197         c_finish_omp_master, c_finish_omp_critical,
5198         c_finish_omp_ordered, c_finish_omp_barrier,
5199         c_finish_omp_atomic, c_finish_omp_flush,
5200         c_finish_omp_for, c_split_parallel_clauses,
5201         omp_clause_default_kind, c_omp_sharing_predetermined,
5202         c_omp_remap_decl): Declare.
5203         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
5204         (OBJS-common): Add omp-low.o.
5205         (c-omp.o, omp-low.o): Add.
5206         (gimplify.o): Add dependency on $(OPTABS_H).
5207         (GTFILES): Add omp-low.c.
5208         (gt-stringpool.h): Add.
5209         * tree-cfg.c (set_bb_for_stmt): Do not update the
5210         block-to-labels map if we are currently expanding to RTL.
5211         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
5212         checks.
5213         Handle IDENTIFIER_NODE.
5214         (tree_verify_flow_info): Do not ICE when emitting error
5215         messages about invalid labels.
5216         (dump_function_to_file): Reset CFUN before emitting the body
5217         of the function.
5218         (debug_function): New.
5219         * passes.c (init_optimization_passes): Schedule
5220         pass_lower_omp.
5221         * langhooks-def.h (lhd_omp_predetermined_sharing,
5222         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
5223         Declare.
5224         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
5225         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
5226         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
5227         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
5228         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
5229         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
5230         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
5231         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
5232         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
5233         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
5234         (LANG_HOOK_DECLS): Use them.
5235
5236 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
5237             Richard Henderson  <rth@redhat.com>
5238             Jakub Jelinek  <jakub@redhat.com>
5239             Diego Novillo  <dnovillo@redhat.com>
5240
5241         * c-parser.c (pragma_omp_clause): Define.
5242         (c_parser_declaration_or_fndef): Document OpenMP syntax.
5243         (c_parser_compound_statement): Likewise.
5244         (c_parser_statement): Likewise.
5245         (c_parser_pragma): Handle omp pragmas.
5246         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
5247         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
5248         (c_parser_omp_clause_name, check_no_duplicate_clause,
5249         c_parser_omp_variable_list,
5250         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
5251         c_parser_omp_clause_copyprivate,
5252         c_parser_omp_clause_default,
5253         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
5254         c_parser_omp_clause_lastprivate,
5255         c_parser_omp_clause_nowait,
5256         c_parser_omp_clause_num_threads,
5257         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
5258         c_parser_omp_clause_reduction,
5259         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
5260         c_parser_omp_all_clauses, c_parser_omp_structured_block,
5261         c_parser_omp_atomic, c_parser_omp_barrier,
5262         c_parser_omp_critical, c_parser_omp_flush,
5263         c_parser_omp_for_loop, c_parser_omp_for,
5264         c_parser_omp_master, c_parser_omp_ordered,
5265         c_parser_omp_sections_scope, c_parser_omp_sections,
5266         c_parser_omp_parallel, c_parser_omp_single,
5267         c_parser_omp_construct, c_parser_omp_threadprivate): New.
5268         * c-pragma.c (init_pragma): Do omp pragma registration here.
5269         * c.opt (fopenmp): New flag.
5270
5271 2006-01-18  Eric Christopher  <echristo@apple.com>
5272
5273         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
5274         * config/darwin.h (GOMP_SELF_SPECS): Define.
5275
5276 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5277
5278         * rtl.h: Remove the prototype for reg_alloc.
5279
5280 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5281
5282         PR target/25731
5283         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
5284         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
5285         sjlj and dwarf2 exception handling.
5286         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
5287         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
5288         * pa/pa.c (function_value): Treat complex and vector types as
5289         aggregates.
5290         (function_arg): Likewise.  Only pass scalar floats in the floating
5291         point argument registers.
5292         * pa/t-slibgcc-dwarf-ver: New file.
5293         * pa/t-slibgcc-sjlj-ver: New file.
5294         * pa/t-slibgcc-elf-ver: Delete file.
5295
5296 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
5297
5298         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
5299         unlikely_test_section_p test.
5300
5301 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5302
5303         * mode-switching.c (optimize_mode_switching): Make it static.
5304         * basic-block.h: Remove the prototype for
5305         optimize_mode_switching.
5306
5307         * modulo-sched.c (sms_schedule): Make it static.
5308         * rtl.h: Remove the prototype for sms_schedule.
5309
5310         * postreload-gcse.c (gcse_after_reload_main): Make it static.
5311         * rtl.h: Remove the prototype for gcse_after_reload_main.
5312
5313         * reg-stack.c (reg_to_stack): Make it static.
5314         * rtl.h: Remove the prototype for reg_to_stack.
5315
5316         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
5317         Make them static.
5318         * rtl.h: Remove the prototypes for regrename_optimize and
5319         copyprop_hardreg_forward.
5320
5321 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
5322
5323         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
5324         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
5325         Test against the appropriate null constant for the mode.
5326         If 'fixup_overlap' is true, swap the operands if they overlap.
5327         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
5328         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
5329         alpha_split_tmode_pair and adjust for above change.
5330         * config/alpha/alpha.md (movtf_internal): Adjust call to
5331         alpha_split_tfmode_pair and rely on it to swap the operands.
5332         (movti_internal): New insn and post-reload splitter.
5333         (movti): New expander.
5334
5335 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
5336
5337         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
5338         operands.
5339
5340 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
5341
5342         * rtlanal.c (global_reg_mentioned_p_1,
5343         global_reg_mentioned_p): Remove.
5344         * rtl.h: Remove the prototype for global_reg_mentioned_p.
5345
5346         * flow.c (initialize_uninitialized_subregs): Make it static.
5347         * rtl.h: Remove the prototype for
5348         initialize_uninitialized_subregs.
5349
5350         * function.c (instantiate_virtual_regs): Make it static.
5351         * function.h: Remove the prototype for
5352         instantiate_virtual_regs.
5353
5354         * regmove.c (regmove_optimize, combine_stack_adjustments):
5355         Make them static.
5356         * rtl.h: Remove the prototypes for regmove_optimize and
5357         combine_stack_adjustments.
5358
5359 2006-01-17  Roger Sayle  <roger@eyesopen.com>
5360
5361         * config/i386/i386.c (COSTS_N_BYTES): New macro.
5362         (size_cost): Encode costs in bytes so that a reg-reg addition is
5363         equivalent to COSTS_N_INSNS(1).
5364         (override_options): Use the size_cost.branch_cost as the default
5365         ix86_branch_cost when optimizing for size.
5366
5367 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5368
5369         * Makefile.in (D32PBIT_FUNCS): New.
5370         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
5371         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
5372         D64PBIT_FUNCS and D128PBIT_FUNCS.
5373         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
5374         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
5375         D128PBIT are set.
5376         (decnumber_dep): Define.
5377         * doc/libgcc.texi (Decimal float library routines): New node.
5378         * config/dfp-bit.h, config/dfp-bit.c: New files.
5379
5380 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5381
5382         * expr.c (emit_move_change_mode): Always adjust addresses, not
5383         just during reload.  Copy replacements only during reload.
5384         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
5385         emit_move_via_integer.
5386
5387 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
5388
5389         * Makefile.in (check-%, check-consistency): Use $${srcdir}
5390         instead of $(srcdir) and ${srcdir}.
5391
5392 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
5393
5394         PR target/592
5395         PR middle-end/11135
5396         * arm.h (struct machine_function): Add pic_reg.
5397         * arm.c (arm_pic_register): Make unsigned.
5398         (arm_override_options): Only set arm_pic_register if
5399         TARGET_SINGLE_PIC_BASE.
5400         (use_return_insn): Only test for a pic register if it is fixed.
5401         (arm_compute_save_reg0_reg12_mask): Likewise.
5402         (thumb_compute_save_reg_mask): Likewise.
5403         (legitimate_pic_operand): Factor out some known invariants.
5404         (legitimize_pic_address): If we don't have a fixed pic register,
5405         then set up a pseudo in the function entry sequence.  Handle the
5406         pic base being in a pseudo.
5407         (arm_load_pic_register): Handle the pic register being in a pseudo.
5408         (arm_expand_prologue): Only set up the pic register if it is fixed.
5409         (thumb_expand_prologue): Likewise.
5410         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
5411         (pic_load_addr_based_insn): Likewise.
5412         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
5413         fixed.
5414
5415 2006-01-18  Ben Elliston  <bje@au.ibm.com>
5416
5417         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
5418         decimal float modes for all floating point registers.
5419
5420         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
5421         match_code "mem" with match_test "macho_lo_sum_memory_operand".
5422
5423 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
5424
5425         PR c/25682
5426         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
5427         even when the pointer is not NULL.
5428
5429 2006-01-16  Ian Lance Taylor  <ian@airs.com>
5430
5431         * common.opt (ftoplevel-reorder): New option.
5432         * cgraph.c (cgraph_asm_nodes): New global variable.
5433         (cgraph_asm_last_node): New static variable.
5434         (cgraph_order): New global variable.
5435         (cgraph_create_node): Set new order field.
5436         (cgraph_varpool_node): Likewise.
5437         (decide_is_variable_needed): Return true if not
5438         flag_toplevel_reorder.
5439         (cgraph_add_asm_node): New function.
5440         * cgraph.h (struct cgraph_node): Add order field.
5441         (struct cgraph_varpool_node): Add order field.
5442         (struct cgraph_asm_node): Define.
5443         (cgraph_asm_nodes, cgraph_order): Declare.
5444         (cgraph_add_asm_node): Declare.
5445         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
5446         function.
5447         (cgraph_varpool_assemble_pending_decls): Call it.
5448         (cgraph_output_pending_asms): New static function.
5449         (cgraph_finalize_compilation_unit): Call it.
5450         (struct cgraph_order_sort): Define.
5451         (cgraph_output_in_order): New static function.
5452         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
5453         !flag_toplevel_reorder case.
5454         * c-parser.c: Include "cgraph.h".
5455         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
5456         assemble_asm.
5457         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
5458         than -fno-unit-at-a-time.
5459         * doc/invoke.texi (Option Summary): Mention
5460         -fno-toplevel-reorder.
5461         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
5462         -funit-at-a-time documentation.
5463
5464 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
5465             Kazu Hirata  <kazu@codesourcery.com>
5466
5467         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
5468
5469 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
5470
5471         * Makefile.in (FUNCTION_H): New.  Use it instead of
5472         function.h throughout the file.
5473         * function.h: Include tree.h.
5474
5475 2006-01-17  Ben Elliston  <bje@au.ibm.com>
5476
5477         * recog.c: Separate some functions with whitespace.
5478
5479 2006-01-16  Richard Henderson  <rth@redhat.com>
5480
5481         Merge from gomp branch:
5482         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
5483         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
5484         and rename from struct inline_data.  Rename callee* to dst*;
5485         caller* to src*; add copy_decl hook, transform_call_graph_edges,
5486         transform_new_cfg, transform_return_to_modify, and
5487         transform_lang_insert_block flags; remove cloning_p, versioning_p,
5488         update_clones_p.
5489         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
5490         (copy_decl_for_dup): Remove.
5491         * tree-inline.c (struct inline_data): Move to header.
5492         (insert_decl_map): Export.
5493         (remap_decl): Update for member name changes.  Use copy_decl hook.
5494         Allow for replacement to be a non-decl.  Remove dead code.
5495         (remap_type_1): Check for existing mapping.
5496         (remap_type): Export.
5497         (remap_decls): Update for member name changes.
5498         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
5499         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
5500         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
5501         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
5502         (tree_function_versioning, build_duplicate_type): Likewise.
5503         (copy_body_r): Likewise.  Export.
5504         (copy_decl_for_dup): Split into ...
5505         (copy_decl_for_dup_finish, copy_decl_to_var,
5506         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
5507         (replace_ref_tree, inlining_p): Remove.
5508
5509 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5510
5511         * ifcvt.c (if_convert): Make it static.
5512         * rtl.h: Remove the prototype for if_convert.
5513
5514         * local-alloc.c (local_alloc): Make it static.
5515         * rtl.h: Remove the prototype for local_alloc.
5516
5517         * loop.c (loop_optimize): Make it static.
5518         * cfgloop.h: Remove the prototype for loop_optimize.
5519         * rtl.h: Likewise.
5520
5521 2006-01-16  DJ Delorie  <dj@redhat.com>
5522
5523         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
5524         mems.
5525
5526 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5527
5528         * pa.md: Disparage copies between general and floating-point registers
5529         in 32-bit move patterns.
5530
5531 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
5532
5533         PR testsuite/25741
5534         * Makefile.in (check-%): Depend on site.exp instead of
5535         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
5536         directories.
5537
5538 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5539
5540         * global.c (global_alloc): Make it static.
5541         * rtl.h: Remove the prototype for global_alloc.
5542
5543 2006-01-16  Richard Guenther  <rguenther@suse.de>
5544
5545         * tree-ssa-alias.c (struct used_part): Add write_only field.
5546         (get_or_create_used_part_for): Initialize it to true.
5547         (create_overlap_variables_for): Don't create structure variables
5548         for structures that only are written to.
5549         (find_used_portions): Handle MODIFY_EXPR to track whether a
5550         structure is only written to.
5551
5552 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5553
5554         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
5555         static.
5556         * basic-block.h: Remove the prototype for
5557         partition_hot_cold_basic_blocks.
5558
5559 2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>
5560
5561         * cppspec.c (lang_specific_spec_functions): Remove.
5562         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
5563         * gcc.h (lang_specific_spec_functions): Remove.
5564         * gccspec.c (lang_specific_spec_functions): Remove.
5565
5566 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
5567
5568         * combine.c (record_value_for_reg): Invalidate registers
5569         if INSN is null.
5570         (record_dead_and_set_regs_1): Likewise, by passing them to
5571         record_value_for_reg.
5572         (record_dead_and_set_regs): Invalidate stores made by a
5573         call.  We do not combine across a call, but we still
5574         relied on equivalences.
5575
5576 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5577
5578         * tree-vrp.c (extract_range_from_binary_expr): Cope with
5579         vrp_int_const_binop returning non-constant nodes.
5580
5581 2006-01-16  Paul Brook  <paul@codesourcery.com>
5582
5583         * config/m68k/m68k.c (output_move_const_into_data_reg):
5584         Output correct mnemonic for mvz and mvs.
5585
5586 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
5587
5588         * rtl-factoring.c: Add sequence abstraction algorithm.
5589         * cfgcleanup.c (outgoing_edges_match): Extra checks.
5590         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
5591         ABNORMAL edges.
5592         (block_has_preserve_label): New function.
5593         * common.opt: Register new pass.
5594         * Makefile.in: Ditto.
5595         * passes.c: Ditto.
5596         * timevar.def: Ditto.
5597         * tree-pass.h: Ditto.
5598         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
5599         * rtl.h (make_jump_insn_raw): Add forward decl.
5600         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
5601
5602 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5603             Roger Sayle  <roger@eyesopen.com>
5604
5605         * fold-const.c (fold_minmax): New static function.
5606         (fold_binary) <MIN_EXPR>: Call it.
5607         <MAX_EXPR>: Likewise.
5608         * stor-layout.c (place_field): Use DECL_SIZE consistently
5609         in the computation of the new record size.
5610
5611 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
5612
5613         * cse.c (cse_condition_code_reg): Make it static.
5614         * rtl.h: Remove the prototype for cse_condition_code_reg.
5615
5616         * combine.c (combine_instructions): Make it static.
5617         * rtl.h: Remove the prototype for combine_instructions.
5618
5619 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5620
5621         PR target/25168
5622         * tree.c (get_file_function_name_long): Concatenate the first global
5623         object name with a string derived from the input filename of the object
5624         for type "F".
5625
5626 2006-01-16  Ben Elliston  <bje@au.ibm.com>
5627
5628         * config/i386/winnt-stubs.c: Update FSF address.
5629         * config/xtensa/ieee754-df.S: Ditto.
5630         * config/xtensa/ieee754-sf.S: Ditto.
5631
5632 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5633
5634         * ifcvt.c (noce_init_if_info): New static function, broken out of
5635         noce_process_if_block.
5636         (noce_process_if_block): Call noce_init_if_info.
5637         (check_cond_move_block): New static function.
5638         (cond_move_process_if_block): New static function.
5639         (process_if_block): Call cond_move_process_if_block.
5640
5641 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
5642
5643         * cselib.c (hash_table): Rename to cselib_hash_table.
5644         (cselib_clear_table, discard_useless_values,
5645         remove_useless_values, cselib_lookup_mem, cselib_lookup,
5646         cselib_init, cselib_finish): Adjust uses of hash_table.
5647
5648 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
5649
5650         PR tree-optimization/25485
5651         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
5652         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
5653         is known to be false and true, respectively.
5654
5655 2006-01-14  Richard Guenther  <rguenther@suse.de>
5656
5657         PR tree-optimization/22548
5658         PR tree-optimization/22555
5659         PR tree-optimization/22501
5660         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
5661         * params.def (salias-max-array-elements): New parameter.
5662         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
5663         * doc/invoke.texi (salias-max-array-elements): Document.
5664         * tree-flow-inline.h (var_can_have_subvars): We also handle
5665         arrays now.
5666         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
5667         COMPONENT_REF.
5668         * tree-ssa-structalias.c (params.h): Include.
5669         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
5670         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
5671         (get_constraint_for): For ADDR_EXPR operating on something
5672         containing an ARRAY_REF, add all subvars to the solution.
5673         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
5674         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
5675         for creating MUST_DEFs.
5676         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
5677
5678 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
5679
5680         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
5681         functions.
5682         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
5683         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
5684         number_of_iterations_le): New functions.
5685         (number_of_iterations_special): Removed.
5686         (number_of_iterations_exit): Do not use number_of_iterations_special.
5687         * tree.c (unsigned_type_for): Always return integer type.
5688
5689 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
5690         Richard Guenther  <rguenther@suse.de>
5691
5692         PR rtl-optimization/24257
5693         * gcse.c (find_moveable_store): Only consider a store movable
5694         when the SET_SRC of the insn can be assigned to a register.
5695
5696 2006-01-14  Ian Lance Taylor  <ian@airs.com>
5697
5698         * tree.c (tree_not_class_check_failed): New function.
5699         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
5700         (tree_not_class_check_failed): Declare.
5701
5702 2006-01-13  Ian Lance Taylor  <ian@airs.com>
5703
5704         * reload1.c (do_output_reload): Add assertion rejecting a
5705         CALL_INSN.
5706
5707 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
5708
5709         * combine.c (struct reg_stat): Add new fields truncation_label and
5710         truncated_to_mode.
5711         (record_value_for_reg): Reset truncated_to_mode.
5712         (record_truncated_value): New function.
5713         (check_promoted_subreg): Call it.  Rename to check_conversions.
5714         (combine_instructions): Rename check_promoted_subreg to
5715         check_conversions.
5716         (reg_truncated_to_mode): New function.
5717         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
5718         (gen_lowpart_or_truncate): New function.
5719         (force_to_mode): Use it instead of gen_lowpart.
5720
5721 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
5722
5723         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
5724         VAR is a tag, not its type tag.
5725
5726 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
5727
5728         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
5729         alternatives to match style of other entries.
5730         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
5731
5732 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
5733
5734         PR tree-optimization/25771
5735         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
5736         SSA_NAMES.
5737
5738 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
5739
5740         PR tree-opt/24365
5741         * tree-inline.c (declare_return_variable): If the return variable
5742         was marked as a non gimple complex, set the return slot variable
5743         to be a non gimple comple variable.
5744
5745 2006-01-13  Richard Guenther  <rguenther@suse.de>
5746
5747         * builtins.c (expand_builtin_sincos): New function.
5748         (expand_builtin_mathfn_3): Remove dead code, sin and cos
5749         do not set errno.
5750         (expand_builtin): Expand sincos using expand_builtin_sincos.
5751
5752 2006-01-12  DJ Delorie  <dj@redhat.com>
5753
5754         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
5755         shift counts, separate SI shifts for m32c vs m16c, pass shift type
5756         so that constant shifts can be split.
5757         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
5758         (m32c_valid_pointer_mode): Make static.
5759         (shift_gen_func_for): New.
5760         (m32c_prepare_shift): Use it.  Split large const shifts into
5761         multiple shifts.
5762         * config/m32c/predicates.md (shiftcount_operand): Allow more
5763         general operands.
5764         (longshiftcount_operand): New.
5765         * doc/md.texi (Machine Constraints): Document In6.
5766
5767 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5768
5769         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
5770         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
5771         documentation.
5772
5773 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
5774
5775         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
5776         to try to avoid clobbering pieces of structures when we know
5777         something about the whole structure.
5778         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
5779
5780 2006-01-13  Ben Elliston  <bje@au.ibm.com>
5781
5782         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
5783         return in memory, as this is no limitation is no longer present.
5784
5785 2006-01-12  DJ Delorie  <dj@redhat.com>
5786
5787         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
5788         mova with fb, and for fb+0 -> An.
5789
5790         * config/m32c/mov.md (peephole2): Fix enabling logic.
5791
5792         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
5793         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
5794         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
5795         FINI_ARRAY_SECTION_ASM_OP): Define.
5796
5797         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
5798         variable.
5799         (m32c_legitimize_reload_address): New logic to reload FB to An.
5800         (m32c_output_reg_push): Add newline.
5801         (m32c_output_reg_pop): Likewise.
5802
5803 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
5804
5805         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
5806
5807 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
5808
5809         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
5810
5811 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5812
5813         * config/sh/predicates.md (sh_rep_vec): Add parallel to
5814         match_code.
5815
5816 2006-01-11  Ben Elliston  <bje@au.ibm.com>
5817
5818         * rtlanal.c (find_reg_note): Assert insn is not null.
5819
5820 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5821
5822         * df-scan.c (df_hard_reg_init): Move declaration of i outside
5823         ifdef.
5824
5825 2006-01-11  Jeff Law  <law@redhat.com>
5826
5827         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
5828         hold edge pairs.
5829         (mark_threaded_blocks, register_jump_thread): New functions.
5830         (thread_through_all_blocks): Remove unwanted argument.  No
5831         longer rely on e->aux to communicate thread target info.
5832         Call mark_threaded_blocks.  Release the threaded_blocks
5833         bitmap and threaded_edges vector when complete.
5834         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
5835         (threaded_blocks): Remove.
5836         (tree_ssa_dominator_optimize): Remove initialization and
5837         finalization of threaded_blocks.  Simplify call to
5838         thread_through_all_blocks.
5839         (thread_across_edge): Call register_jump_thread rather than
5840         storing thread information into e->aux.
5841         (free_all_edge_infos): Simplify now that e->aux is no longer
5842         used to communicate with thread_through_all_blocks.
5843         * tree-flow.h (thread_through_all_blocks): Update prototype.
5844         (register_jump_thread): Prototype.
5845
5846 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5847
5848         * df-core.c (df_compact_blocks, df_bb_replace): Use
5849         SET_BASIC_BLOCK instead of BASIC_BLOCK.
5850
5851 2006-01-11  Richard Guenther  <rguenther@suse.de>
5852
5853         PR tree-optimization/25734
5854         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
5855         stop propagation after successful propagation to the LHS.
5856
5857 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
5858
5859         * basic-block.h (control_flow_graph): Change the type of
5860         x_basic_block_info to VEC(basic_block,gc) *.
5861         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
5862         basic_block_info.
5863         (SET_BASIC_BLOCK): New.
5864         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
5865         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
5866         * cfgbuild.c (find_basic_blocks): Likewise.
5867         * cfglayout.c (fixup_reorder_chain): Likewise.
5868         * cfgrtl.c (create_basic_block_structure,
5869         rtl_create_basic_block): Likewise.
5870         * ifcvt.c (find_if_case_1): Likewise.
5871         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
5872         Likewise.
5873
5874 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
5875
5876         * Makefile.in: Removed rotted odf.c entry.
5877
5878 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
5879
5880         PR target/25706
5881         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
5882         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
5883         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
5884         output pattern modifier, not %e.
5885         * config/cris/cris.c (cris_op_str): Update comment about pattern
5886         modifier.
5887         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
5888         before falling through into...
5889         <case 'E'>: Redefined from old 'e' case.
5890
5891 2006-01-11  Jan Hubicka  <jh@suse.cz>
5892
5893         PR target/25042
5894         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
5895
5896 2006-01-11  Jan Hubicka  <jh@suse.cz>
5897
5898         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
5899         * i386.c (x86_decompose_lea): Kill.
5900         (ix86_rtx_costs): Kill.
5901
5902 2006-01-11  Jan Hubicka  <jh@suse.cz>
5903
5904         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
5905         * cgraph.h (cgraph_node): Add inline_decl.
5906         (cgraph_insert_node_to_hashtable): Declare.
5907         (save_inline_function_body): Declare.
5908         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
5909         clones.
5910         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
5911         (cgraph_function_versioning): Update call of tree_function_versioning.
5912         (save_inline_function_body): New function.
5913         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
5914         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
5915         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
5916         (cgraph_default_inline_p): Likewise.
5917         (cgraph_decide_inlining_incrementally): Likewise.
5918         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
5919         (copy_bb): Kill saving; do updating of clones.
5920         (copy_cfg_body): Kill saving.
5921         (initialize_inlined-parameters): Likewise.
5922         (expand_call_inline): Likewise.
5923         (save_body): Kill.
5924         (tree_function_versioning): New parameter "update_clones".
5925         (inlining_p): Kill saving.
5926         * tree-inline.h (tree_function_versioning): Update prototype.
5927         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
5928         saving.
5929
5930 2006-01-11  Ian Lance Taylor <ian@airs.com>
5931
5932         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
5933         Allow undoing set of machine mode.
5934         (do_SUBST): Use enums instead of is_int.
5935         (do_SUBST_MODE): New function.
5936         (SUBST_MODE): New macro.
5937         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
5938         reg and trying to replace reg_regno_rtx with a new register.
5939         (undo_all): Use new enums, handle undoing a PUT_MODE change.
5940         (simplify_set): Use SUBST_MODE.
5941         (distribute_notes): Remove code that tried to update reg notes
5942         for regno_reg_rtx changes.
5943
5944 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
5945
5946         PR tree-optimization/23109
5947         PR tree-optimization/23948
5948         PR tree-optimization/24123
5949
5950         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
5951         * tree-cfg.c (single_noncomplex_succ): New.
5952         * tree-flow.h (single_noncomplex_succ): Declare it.
5953         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5954         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
5955         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
5956         insert_bb, register_division_in, insert_reciprocals,
5957         replace_reciprocal, free_bb): New.
5958         (execute_cse_reciprocals_1): Rewritten.
5959         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
5960         Do not commit any edge insertion.  Always compute dominators and
5961         create the allocation pool.
5962         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
5963         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
5964         * targhooks.c (default_min_divistions_for_recip_mul): New.
5965         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
5966         * passes.c (init_optimization_passes): Run recip after tree loop
5967         optimizations.
5968         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
5969
5970 2006-01-11  Danny Berlin <dberlin@dberlin.org>
5971             Kenneth Zadeck <zadeck@naturalbridge.com>
5972
5973         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
5974         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
5975         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
5976         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
5977         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
5978         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
5979         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
5980         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
5981         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
5982         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
5983         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
5984         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
5985         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
5986         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
5987         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
5988         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
5989         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
5990         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
5991         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
5992         DF_SCAN_POST_ALLOC): New macros.
5993         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
5994         df_free_bb_function, df_local_compute_function, df_init_function,
5995         df_dataflow_function, df_confluence_function_0,
5996         df_confluence_function_n, df_transfer_function,
5997         df_finalizer_function, df_free_function, df_dump_problem_function,
5998         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
5999         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
6000         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
6001         df_urec_bb_info, ) New types.
6002         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
6003         variables.
6004         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
6005         df_analyze_simple_change_some_blocks,
6006         df_analyze_simple_change_one_block, df_compact_blocks,
6007         df_bb_replace, df_bb_regno_last_use_find,
6008         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
6009         df_insn_regno_def_p, df_find_def, df_find_use,
6010         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
6011         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
6012         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
6013         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
6014         debug_df_chain, df_get_dependent_problem, df_chain_create,
6015         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
6016         df_grow_bb_info, df_chain_dump, df_print_bb_index,
6017         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
6018         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
6019         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
6020         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
6021         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
6022         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
6023         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
6024         df_ref_remove, df_insn_refs_delete, df_refs_delete,
6025         df_reorganize_refs, df_set_state, df_hard_reg_init,
6026         df_read_modify_subreg_p) New public functions.
6027         * df-core.c: The core dataflow solver and glue routines for rtl
6028         dataflow.
6029         (df_init, df_add_problem, df_set_blocks, df_finish,
6030         df_hybrid_search_forward, df_hybrid_search_backward,
6031         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
6032         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
6033         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
6034         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
6035         df_reg_defined, df_find_use, df_reg_used, df_dump,
6036         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
6037         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
6038         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
6039         debug_df_useno, reset_df_after_reload): New functions.
6040         * df-scan.c: The scanning fuctions, once in df.c, completely
6041         rewritten so that they now fully model the functionality of
6042         register usage at the backend.
6043         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
6044         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
6045         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
6046         df_grow_insn_info, df_rescan_blocks, df_ref_create,
6047         df_get_artificial_defs, df_get_artificial_uses,
6048         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
6049         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
6050         df_refs_delete, df_reorganize_refs, df_set_state,
6051         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
6052         df_def_record_1, df_defs_record, df_uses_record,
6053         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
6054         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
6055         df_record_exit_block_uses, df_hard_reg_init): New functions.
6056
6057         * df-problems.c: Seven concrete dataflow problems that use the
6058         scanning in df-scan.c and are solved by the engine in df-core.c.
6059         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
6060         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
6061         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
6062         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
6063         df_ru_free_bb_info, df_ru_alloc,
6064         df_ru_bb_local_compute_process_def,
6065         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
6066         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
6067         df_ru_transfer_function, df_ru_free, df_ru_dump,
6068         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
6069         df_rd_free_bb_info, df_rd_alloc,
6070         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
6071         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
6072         df_rd_transfer_function, df_rd_free, df_rd_dump,
6073         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
6074         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
6075         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
6076         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
6077         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
6078         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
6079         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
6080         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
6081         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
6082         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
6083         df_urec_mark_reg_change, df_urec_check_earlyclobber,
6084         df_urec_mark_reg_use_for_earlyclobber,
6085         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
6086         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
6087         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
6088         df_urec_dump, df_urec_add_problem, df_chain_alloc,
6089         df_chain_create_bb_process_use, df_chain_create_bb,
6090         df_chain_finalize, df_chain_free, df_chains_dump,
6091         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
6092         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
6093         df_reg_lifetime): New functions.
6094         * df.c: Deleted file.
6095         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
6096         consistent with new df api.
6097         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
6098         rest_of_handle_sms): Ditto.
6099         * web.c (unionfind_union, union_defs, entry_register, web_main):
6100         Ditto.
6101         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
6102         invariant_expr_equal_p, find_defs, check_dependencies,
6103         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
6104         free_inv_motion_data, move_loop_invariants): Ditto.
6105         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
6106         Update dependencies.
6107         (odf.c): Added defective entry that was deleted later in day.
6108         * sched-deps.c (sched_analyze_1): Ditto.
6109
6110 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
6111
6112         * tree-ssa-operands.c (get_expr_operands): Record addressable
6113         variables directly.  Do not call add_stmt_operands for CONST_DECLs
6114         and ARRAY_DECLs.
6115         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
6116         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
6117
6118 2006-01-11  Ben Elliston  <bje@au.ibm.com>
6119
6120         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
6121         function returns true in the positive case.
6122
6123 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6124
6125         PR target/20754
6126         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
6127         for SI, DI, SF and DF modes.  Add alternatives to copy between
6128         general and floating point registers to the 32-bit patterns.
6129         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
6130         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
6131         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
6132         generating 64-bit code.
6133         * config/pa/pa.c (output_move_double): Handle copies between general
6134         and floating registers.
6135
6136 2006-01-10  Stuart Hastings  <stuart@apple.com>
6137
6138         * config/i386/i386.md (set_got): Update.
6139         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
6140         (builtin_setjmp_receiver): Mach-O support.
6141         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
6142         (GOT_SYMBOL_NAME): Define.
6143         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
6144         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
6145         * config/i386/i386.c (override_options): Revise for Darwin.
6146         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
6147         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
6148         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
6149         * config/i386/i386-protos.h (output_set_got): Likewise.
6150         * config/darwin.c (machopic_legitimize_pic_address): Update
6151         regs_ever_live[].
6152
6153 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
6154
6155         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
6156         when MODE isn't BLKmode.
6157
6158 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
6159
6160         PR rtl-optimization/25367
6161         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
6162
6163 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
6164
6165         PR target/25718
6166         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
6167         for a negative bound.
6168
6169 2006-01-10  Richard Guenther  <rguenther@suse.de>
6170
6171         * tree-ssa-structalias.c (get_constraint_for_component_ref):
6172         Never override with anything constraint.
6173
6174 2006-01-10  Jan Beulich  <jbeulich@novell.com>
6175
6176         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
6177         256 bits when optimize_size.
6178
6179 2006-01-10  Jan Beulich  <jbeulich@novell.com>
6180
6181         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
6182         MASK_ALIGN_DOUBLE.
6183         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
6184         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
6185         arguments.
6186
6187 2006-01-10  Ben Elliston  <bje@au.ibm.com>
6188
6189         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
6190         float modes.
6191         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
6192         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
6193         (USE_FP_FOR_ARG): Reject decimal float modes.
6194         (function_arg_advance): Likewise.
6195         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
6196         (rs6000_handle_altivec_attribute): Do not permit decimal floating
6197         point types in AltiVec vectors.
6198         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
6199         (rs6000_libcall_value): Likewise.
6200
6201 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
6202
6203         * config/xtensa/ieee754-df.S: New file.
6204         * config/xtensa/ieee754-sf.S: New file.
6205         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
6206         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
6207         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
6208
6209 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
6210
6211         * config/sh/predicates.md (binary_float_operator,
6212         binary_logical_operator, commutative_float_operator,
6213         equality_comparison_operator, greater_comparison_operator,
6214         less_comparison_operator, logical_operator,
6215         noncommutative_float_operator, shift_operator,
6216         symbol_ref_operand, unary_float_operator): Remove redundant
6217         conditionals.
6218
6219 2006-01-09  Jeff Law  <law@redhat.com>
6220
6221         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
6222         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
6223         now unused arguments.  Callers updated.
6224         (eliminate_redundant_computations): Remove now unused arguments,
6225         callers updated.
6226         (local_fold): Remove, no longer used.
6227         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
6228         and moved to...
6229         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
6230         (simplify_cond): New function.
6231         (forward_propagate_into_cond): Call simplify_cond.
6232
6233 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
6234
6235         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
6236         (*vec_extractv2di_1_sse): New.
6237
6238 2006-01-09  Ben Elliston  <bje@au.ibm.com>
6239
6240         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
6241
6242 2006-01-08  Richard Guenther  <rguenther@suse.de>
6243
6244         * tree-ssa-structalias.c (get_constraint_for): Remove
6245         anyoffset argument.
6246         (get_constraint_for_component_ref): Likewise.
6247         (do_deref): Likewise.
6248         (get_constraint_for): Likewise.
6249         (do_structure_copy): Likewise.
6250         (handle_ptr_arith): Likewise.
6251         (find_func_aliases): Likewise.  Remove unused need_anyoffset
6252         variable.
6253
6254 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
6255             Kaz Kojima  <kkojima@gcc.gnu.org>
6256
6257         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
6258         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
6259         (EXTRA_CONSTRAINT_C16): Remove.
6260         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
6261         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
6262         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
6263         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
6264         constants of SHmedia.  Handle nested constant expressions of
6265         SHmedia correctly.
6266         (andcosts): Fix the costs for SHmedia constants.
6267         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
6268         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
6269         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
6270         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
6271         (movv4hi_i, movv2si_i): Likewise.
6272         (movsi_const): Adjust the second operand of ior so to match with
6273         the Csu constraint.
6274         (movdi_const, movdi_const_32bit): Likewise.
6275         (movdi_const_16bit+1): Don't sign-extend LOW.
6276         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
6277         step.
6278         (*double_shori): Fix the split condition.  Use GEN_INT instead
6279         of get_int_mode calls.  Mask lower 16-bit of the argument of
6280         the last GEN_INT.
6281         (sym2GOTPLT): Remove.
6282         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
6283         gen_rtx_UNSPEC.
6284         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
6285         instead of EXTRA_CONSTRAINT_C16.
6286
6287 2006-01-07  Ian Lance Taylor  <ian@airs.com>
6288             David Edelsohn  <edelsohn@gnu.org>
6289
6290         PR rtl-optimization/25662
6291         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
6292         for constant operands instead of simplify_gen_binary.
6293         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
6294         after trying simplify_binary_operation
6295
6296 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
6297
6298         * tree.c (iterative_hash_expr): Hash decls based on UID.
6299
6300 2006-01-06  Eric Christopher  <echristo@apple.com>
6301
6302         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
6303         (TARGET_UNWIND_EMIT): Fix spelling.
6304         * target.h (gcc_target): Add except_table_label.
6305         * except.c (output_function_exception_table): Use.
6306         * varasm.c (default_emit_except_table_label): New.
6307         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
6308         define.
6309         (asm_out): Add here.
6310         * output.h (default_emit_except_table_label): Prototype.
6311         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
6312         * config/darwin.c (darwin_emit_except_table_label): Define.
6313         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
6314
6315 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
6316
6317         PR tree-optimization/18527
6318         * tree-ssa-loop-niter.c (number_of_iterations_cond,
6319         number_of_iterations_special, number_of_iterations_exit):
6320         Move base and step of an iv to a single structure.  Add
6321         no_overflow flag, and use it in # of iterations analysis.
6322         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
6323         folded_casts argument.
6324         (simple_iv): Pass base and step in a structure.  Set no_overflow
6325         flag.
6326         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
6327         Evaluate expensiveness of computing # of iterations instead of
6328         the final expression.
6329         * tree-scalar-evolution.h (affine_iv): New structure.
6330         (simple_iv): Declaration changed.
6331         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
6332         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
6333         find_givs_in_stmt): Changed due to simple_iv change.
6334
6335 2006-01-06  Jeff Law  <law@redhat.com>
6336
6337         PR ada/24994
6338         * tree-cfg.c (bsi_replace): Rename final argument from
6339         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
6340         change (stmt -> orig_stmt).
6341         * tree-eh.c (verify_eh_throw_stmt_node): New function.
6342         (bsi_remove): Add new argument.  Remove EH information
6343         if requested.
6344         (verify_eh_throw_table_statements): New function.
6345         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
6346         updated.
6347         * tree-optimize.c (execute_free_cfg_annotations): Verify
6348         the EH throw statement table after removing annotations.
6349         * except.h (verify_eh_throw_table_statements): Prototype.
6350         * tree-flow.h (bsi_remove): Update prototype.
6351         * tree-vrp.c (remove_range_assertions): Add new argument to
6352         bsi_remove call.
6353         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
6354         * tree-complex.c (expand_complex_div_wide): Likewise.
6355         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
6356         * tree-tailcall.c (eliminate_tailcall): Likewise.
6357         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
6358         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
6359         * tree-nrv.c (tree_nrv): Likewise.
6360         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
6361         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
6362         (combine_blocks): Likewise.
6363         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
6364         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
6365         (cleanup_control_flow): Likewise.
6366         (remove_forwarder_block): Likewise.
6367         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
6368         * tree-sra.c (sra_replace): Likewise.
6369         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
6370         (forward_propagate_single_use_vars): Likewise.
6371         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
6372         * tree-inline.c (expand_call_inline): Likewise.
6373         * tree-vect-transform.c (vect_transform_loop): Likewise.
6374         * tree-outof-ssa.c (rewrite_trees): Likewise.
6375         * tree-cfg.c (make_goto_expr_edges): Likewise.
6376         (cleanup_dead_labels): Likewise.
6377         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
6378         (bsi_move_before, bsi_move_after): Likewise.
6379         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
6380         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
6381
6382 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
6383
6384         PR tree-opt/25528
6385         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
6386         and IMAGPART_EXPR.
6387         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
6388         on non gimple variables.  Also add checks at the top for decls and
6389         mtags.
6390         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
6391         complex types.
6392         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
6393         and IMAGPART_EXPR for creating MUST_DEFs.
6394         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
6395         and NAME_MEMORY_TAG separately from the DECLs.
6396
6397 2006-01-06  Richard Guenther  <rguenther@suse.de>
6398
6399         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
6400         annotation, if necessary.
6401         * tree-ssa-pre.c (create_expression_by_pieces): Remove
6402         redundant calls to update_stmt.
6403         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
6404         Likewise.
6405
6406 2006-01-05  Richard Henderson  <rth@redhat.com>
6407
6408         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
6409
6410 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6411
6412         * c-typeck.c: Update copyright date.
6413
6414 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
6415
6416         * c-typeck.c (build_c_cast): Always warn when casting
6417         from a pointer to an integer of different size, even if
6418         the node was constant.
6419
6420 2006-01-05  Richard Guenther  <rguenther@suse.de>
6421
6422         PR tree-optimization/22555
6423         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
6424         if one structure field is an array.
6425         * tree-ssa-operands.c (get_expr_operands): Continue scanning
6426         operands even if we found a subvar, but ignore VOPs in this
6427         case.
6428         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
6429         for renaming.
6430         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
6431
6432 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
6433
6434         PR middle-end/24998
6435         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
6436
6437 2006-01-05  Richard Guenther  <rguenther@suse.de>
6438             Diego Novillo  <dnovillo@redhat.com>
6439
6440         * tree-pass.h (TODO_remove_unused_locals): Define.
6441         * gimple-low.c (expand_var_p, remove_useless_vars,
6442         pass_remove_useless_vars): Remove.  Update all users.
6443         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
6444         (remove_unused_locals): New function.
6445         * tree-flow.h (remove_unused_locals): Declare.
6446         * passes.c (execute_todo): Call remove_unused_locals if
6447         TODO_remove_unused_locals is set.
6448         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
6449         * tree-ssa-dce.c (pass_dce): Likewise.
6450         * tree-outof-ssa.c (pass_del_ssa): Likewise.
6451
6452 2006-01-05  Richard Guenther  <rguenther@suse.de>
6453
6454         * tree-flow.h (struct fieldoff): Decompose field to
6455         type, size and decl.
6456         * tree-ssa-alias.c (create_sft): Take type as parameter.
6457         (create_overlap_variables_for): Store type, size and decl
6458         in the fieldoff structure.
6459         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
6460         of struct fieldoff.
6461         (push_fields_onto_fieldstack): Likewise.
6462         (create_variable_info_for): Likewise.  Use offset for the
6463         SFT name if the decl is not available.
6464
6465 2006-01-04  Paul Brook  <paul@codesourcery.com>
6466
6467         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
6468
6469 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
6470
6471         * lambda-code.c (can_put_in_inner_loop): Relax
6472         restrictions.
6473         (can_put_after_inner_loop): New function.
6474         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
6475         (perfect_nestify): Change to make copies and modify uses.
6476
6477 2006-01-04  Richard Henderson  <rth@redhat.com>
6478
6479         Merge from gomp branch:
6480         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
6481         via integer constant.
6482         (pragma_lex): Remove.
6483         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
6484         rather than parsing it.
6485         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
6486         handle_pragma_extern_prefix): Add %< %> quotes.
6487         (registered_pragmas): New.
6488         (c_register_pragma_1): New.
6489         (c_register_pragma): Use it.
6490         (c_register_pragma_with_expansion): Likewise.
6491         (c_invoke_pragma_handler): New.
6492         (init_pragma): Use cpp_register_deferred_pragma directly for
6493         pch_preprocess.
6494         * c-pragma.h (enum pragma_kind): New.
6495         (pragma_handler): New.
6496         (c_invoke_pragma_handler): Declare.
6497         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
6498         CPP_PRAGMA_EOL.
6499         * c-common.h (c_common_pch_pragma): Update decl.
6500         * Makefile.in (c-parser.o): Update dependencies.
6501         (GTFILES): Add c-pragma.h.
6502         * c-parser.c (struct c_token): Add pragma_kind.
6503         (struct c_parser): Add in_pragma.
6504         (c_lex_one_token): Always initialize keyword and pragma_kind.
6505         Extract data for CPP_PRAGMA.
6506         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
6507         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
6508         Don't allow CPP_PRAGMA_EOL if in_pragma.
6509         (c_parser_consume_pragma): New.
6510         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
6511         (c_parser_skip_to_end_of_parameter): Likewise.
6512         (c_parser_skip_to_end_of_block_or_statement): Likewise.
6513         (c_parser_skip_to_pragma_eol): New.
6514         (c_parser_external_declaration): Handle CPP_PRAGMA.
6515         (c_parser_compound_statement_nostart): Likewise.
6516         (c_parser_statement_after_labels): Likewise.
6517         (c_parser_pragma): New.
6518         (pragma_lex): Likewise.
6519         (c_parser_pragma_pch_preprocess): New.
6520         (c_parser_new): Merge into ...
6521         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
6522
6523 2006-01-04  Jeff Law  <law@redhat.com>
6524
6525         PR ada/24994
6526         * tree-cfg.c (bsi_replace): Remove the original statement
6527         from the EH throw statement table.
6528
6529 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
6530
6531         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
6532         make the prototype extern "C" and add throw ().
6533
6534         PR target/25554
6535         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
6536         and pos non-negative and pos + len <= 32.
6537         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
6538         drop pos + len < HOST_BITS_PER_WIDE_INT test.
6539         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
6540
6541         PR c/25559
6542         * c-common.c (handle_vector_size_attribute): Reject zero vector size
6543         as well as sizes not multiple of component size.
6544
6545         PR debug/25562
6546         * function.c (instantiate_expr): New function.
6547         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
6548         walk its DECL_VALUE_EXPR with instantiate_expr.
6549
6550         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
6551         DW_OP_deref{,_size} if address isn't going to be added.
6552
6553 2006-01-04  Ben Elliston  <bje@au.ibm.com>
6554
6555         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
6556         * config/fp-bit.c: Likewise.
6557
6558 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
6559
6560         * dominance.c: Add comment about why we use DFS numbering
6561         of dominance tree.
6562
6563 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6564             Richard Henderson  <rth@redhat.com>
6565
6566         Merge from gomp-branch:
6567         * varasm.c (assemble_variable): Handle thread-local COMMON data.
6568         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
6569
6570 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
6571
6572         PR rtl-optimization/25578
6573         * combine.c (combine_simplify_rtx, force_to_mode): Don't
6574         pass a parameter to simplify_shift_const if changing ASHIFTRT
6575         to LSHIFTRT.
6576
6577 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
6578
6579         * builtins.c (get_builtin_sync_mem): New function.
6580         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
6581         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
6582         Call get_builtin_sync_mem to generate mem rtx.
6583
6584 2006-01-03  Richard Guenther  <rguenther@suse.de>
6585
6586         PR c/25183
6587         * stmt.c (add_case_node): Make sure to clear overflow flags
6588         from ranges.
6589
6590 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
6591
6592         Merge from gomp-branch.
6593         * config/sparc/sync.md: New file.
6594         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
6595         UNSPECV_LDSTUB): New constants.
6596         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
6597         * config/sparc/predicates.md (memory_reg_operand): New predicate.
6598         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
6599         prototype.
6600
6601 2006-01-03  Roger Sayle  <roger@eyesopen.com>
6602
6603         * combine.c (reg_subword_p): New predicate to test whether the
6604         destination of a set refers to a subword/piece of a register.
6605         (try_combine): Generalize the code to merge the setting of a
6606         pseudo to a constant followed by a set of a subword of that
6607         register to a constant.
6608
6609 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
6610
6611         * basic-block.h (control_flow_graph): Change the type of
6612         x_label_to_block_map to VEC(basic_block,gc) *.
6613         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
6614         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
6615
6616         * tree-ssa-propagate.c (cfg_blocks): Change the type to
6617         VEC(basic_block,heap) *.
6618         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
6619         ssa_prop_fini): Adjust the uses of cfg_blocks.
6620
6621 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
6622
6623         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
6624         COMPONENT_REFs.
6625         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
6626         hashing trees instead of a pointer hash.
6627         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
6628         compare for MEM_EXPR.
6629
6630         PR rtl-optimization/25130
6631         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
6632         when comparing MEMs for GCSE
6633
6634 2006-01-03  Ben Elliston  <bje@au.ibm.com>
6635
6636         * targhooks.h (default_decimal_float_supported_p): Declare.
6637         * targhooks.c (default_decimal_float_supported_p): Define.
6638         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
6639         `default_decimal_float_supported_p'.
6640         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
6641
6642 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
6643
6644         * combine.c (apply_distributive_law <SUBREG>): Check
6645         TRULY_NOOP_TRUNCATION.
6646
6647 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
6648
6649         * dwarf2out.c (have_switched_text_section): Delete.
6650         (have_multiple_function_sections): New.
6651         (have_location_lists): Make 'bool'.
6652         (add_AT_loc_list): Use 'true' not '1'.
6653         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
6654         (output_loc_list): Use have_multiple_function_sections.
6655         (output_ranges): Likewise.
6656         (dwarf2out_begin_function): Set have_multiple_function_sections if
6657         necessary.
6658         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
6659         Check function_section rather than DECL_SECTION_NAME.
6660         (dwarf2out_finish): Use have_multiple_function_sections.
6661         Don't clear have_location_lists.
6662
6663 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
6664             Jan Hubicka  <jh@suse.cz>
6665
6666         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
6667         case of conditional jump jumping to the next instruction.
6668         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
6669         cases of conditional jump jumping to the next instruction.
6670
6671 2006-01-02  Jan Hubicka  <jh@suse.cz>
6672
6673         * i386.c (*_cost): Add COSTS_N_INSNS.
6674         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
6675
6676 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
6677
6678         PR target/25259
6679         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
6680
6681 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
6682
6683         * config/arm/arm.c (all_fpus): Fix comment typo.
6684         * config/darwin.c: Likewise.
6685         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
6686         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
6687         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
6688
6689 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
6690
6691         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
6692         (rs6000_split_compare_and_swapqhi): New.
6693         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
6694         (sync_compare_and_swapqhi_internal): New.
6695         * config/rs6000/rs6000-protos.h: Declare.