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* doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2
3         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
4         Document.
5         * tree-ssa-loop-niter.c (number_of_iterations_ne,
6         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
7         of the ending condition.
8         * tree-ssa-loop-manip.c: Include params.h.
9         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
10         tree_unroll_loop): New functions.
11         * tree-pass.h (pass_loop_prefetch): Declare.
12         * loop.c (rest_of_handle_loop_optimize): Test for
13         -fprefetch-loop-arrays-rtl.
14         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
15         * timevar.def (TV_TREE_PREFETCH): New timevar.
16         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
17         pass_loop_prefetch): New.
18         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
19         (cleanup_tree_cfg_loop): Call scev_reset.
20         * common.opt (fprefetch-loop-arrays-rtl): Add.
21         * tree-ssa-loop-prefetch.c: New file.
22         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
23         (new_temp_expr_table): Initialize expr_vars.
24         (free_temp_expr_table): Cleanup expr_vars.
25         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
26         expressions from being merged into one.
27         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
28         (struct tree_niter_desc): Add control, bound and cmp fields.
29         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
30         Declare.
31         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
32         (tree-cfgcleanup.o): Add SCEV_H dependency.
33         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
34         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
35
36 2006-02-14  Richard Guenther  <rguenther@suse.de>
37
38         PR tree-optimization/26258
39         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
40         in PHI argument processing.
41
42 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
43
44         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
45         new expression in the requested machine mode.
46
47 2006-02-13  Roger Sayle  <roger@eyesopen.com>
48
49         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
50         directly, instead let do_compare_rtx_and_jump handle this for us.
51         * expr.c (expand_expr_real_1): Likewise.
52         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
53         before do_jump_by_parts_greater.
54         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
55         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
56
57 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
58
59         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
60
61 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
62
63         PR rtl-optimization/26235
64         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
65         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
66         format.
67
68 2006-02-13  Jeff Law  <law@redhat.com>
69
70         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
71         TRUTH_XOR_EPR.
72
73 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
74
75         PR middle-end/26092
76         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
77         twice if decl is a builtin.  When trying again, call get_callee_fndecl
78         first to verify it is still a builtin.
79
80 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
81
82         * dwarf2out.c (base_type_die): Don't add AT_name here.
83         (subrange_type_die): Don't add AT_name here.
84         (modified_type_die): Rearrange code flow.  Do add AT_name here.
85
86 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
87
88         PR rtl-optimization/26247
89         PR rtl-optimization/26248
90         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
91
92 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
93
94         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
95         * config/fixtfdi.c: Likewise.
96         * config/fixunstfdi.c: Likewise.
97         * config/floatditf.c: Likewise.
98
99 2006-02-13  Roger Sayle  <roger@eyesopen.com>
100
101         PR middle-end/24427
102         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
103         into (X,C2) if C1 is a subset of the bits of C2.  Transform
104         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
105         (X&(C1&~C2))|C2.
106         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
107
108 2006-02-13  Josh Conner  <jconner@apple.com>
109
110         PR target/25376
111         * varasm.c (function_section): Check for section name before
112         calling select_section on targets that define
113         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
114         unlikely_text_section instead of hot_function_section if
115         first_function_block_is_cold.
116
117 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
118
119         PR middle-end/25335
120         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
121
122 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
123
124         PR rtl-optimization/26222
125         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
126         after tree->rtl expansion.
127         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
128         before passing it to emit_move_insn.
129
130 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
131
132         * doc/invoke.texi (-Write-strings): Document that it is enabled by
133         default. 
134         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
135         Clarify documentation.
136         * c-common.h (warn_write_strings): Remove.
137         * c-common.c (warn_write_strings): Likewise.
138         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
139         default for C++.
140
141 2006-02-12  Roger Sayle  <roger@eyesopen.com>
142
143         PR middle-end/25724
144         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
145         (do_jump_parts_zero_rtx): New function renamed from
146         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
147         (do_jump_parts_equality_rtx): New function split out from
148         do_jump_parts_equality.  Old implementation renamed as above.
149         Call do_jump_parts_zero_rtx if either operand is zero.
150         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
151         do all of the heavy lifting.
152         (do_compare_rtx_and_jump): Handle multi-word comparisons by
153         calling either do_jump_by_parts_greater_rtx or
154         do_jump_by_parts_equality_rtx.
155         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
156         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
157         moved to do_compare_rtx_and_jump, call it directly.
158         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
159         mode argument.  Call do_compare_rtx_and_jump.
160         (emit_case_nodes): Update calls to do_jump_if_equal.
161
162 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
163
164         PR rtl-optimization/26225
165         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
166
167 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
168
169         PR rtl-optimization/26232
170         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
171
172 2006-02-11  Jason Merrill  <jason@redhat.com>
173
174         PR tree-opt/24365
175         * tree-inline.c (declare_return_variable): Just don't use the
176         modify target if it's a gimple complex reg and the return slot
177         isn't.
178
179 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
180
181         * doc/contrib.texi: Update my entry.
182
183 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
184
185         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
186
187 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
188
189         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
190         expensive.
191
192 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
193
194         * doc/invoke.texi (-floop-optimize2): Removed.
195         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
196         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
197         Test flag_branch_on_count_reg only if HAVE_doloop_end.
198         * common.opt (floop-optimize2): Removed.
199         (fmove-loop-invariants): Enabled by default.
200
201 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
202
203         * tree-if-conv.c (combine_blocks): Free the result of
204         get_loop_exit_edges.
205
206 2006-02-10  Jeff Law  <law@redhat.com>
207
208         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
209
210         PR tree-optimization/26213
211         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
212         loop trying to follow SSA_NAME_VALUE chains.
213
214 2006-02-10  Richard Guenther  <rguenther@suse.de>
215
216         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
217         deal with structures that end in implicitly variable sized arrays.
218
219 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
220
221         PR rtl-optimization/24762
222         * df-scan.c (df_bb_refs_record): Record correct registers defined on
223         eh edges.
224
225 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
226
227         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
228         (struct ivopts_data): Add regs_used field.
229         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
230         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
231         instead of loop_data->regs_used;
232         (free_loop_data): Do not free aux fields for loops.
233         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
234         and tree_ssa_iv_optimize_finalize.
235
236 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
237
238         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
239
240 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
241
242         PR target/26141
243         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
244         computing the effective result type.
245
246 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
247
248         PR inline-asm/16194
249         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
250         (tree_overlaps_hard_reg_set): Declare.
251         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
252         type and signature to match function type expected by walk_tree.
253         (tree_overlaps_hard_reg_set): New function.
254         (decl_conflicts_with_clobbers_p): Rename to:
255         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
256         Use tree_overlaps_hard_reg_set.  Changed caller.
257         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
258         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
259         * cris.c (cris_md_asm_clobbers): Likewise.
260
261 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
262
263         * reload1.c (emit_input_reload_insns): Delete code that tries to
264         inherit using find_equiv_reg.
265
266 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
267
268         * c-common.h (flag_const_strings): Don't declare.
269         * c-common.c (flag_const_strings): Remove.
270         * c.opt (fconst_strings): Remove.
271         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
272         <OPT_Wwrite_strings>: Don't set flag_const_strings.
273         (c_common_init_options): Don't set flag_const_strings.
274         * doc/invoke.texi (-fno-const-strings): Remove documentation.
275
276 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
277
278         * arm.md (tlobits_cbranch): New pattern.
279         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
280         testing a single bit.
281
282 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
283
284         PR tree-opt/26179
285         * tree-ssa-pre.c (create_component_ref_by_pieces):
286         Handle RETURN_DECL like VAR_DECL.
287
288 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
289
290         PR middle-end/26134
291         * fold-const.c (fold_indirect_ref_1): Fold 
292         "*(foo *)&complexfoo" to "__real__ complexfoo"
293         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
294
295 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
296
297         * tree-flow-inline.h (var_can_have_subvars): 
298         Volatile variables should not have subvariables.
299
300 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
301
302         PR 26180
303         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
304         multiplying unsigned values.
305         Tidy comments.
306
307 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
308
309         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
310
311 2006-02-08  Jason Merrill  <jason@redhat.com>
312
313         PR c++/25979
314         * tree.def: Elaborate on difference from MODIFY_EXPR.
315         * doc/c-tree.texi (INIT_EXPR): Likewise.
316         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
317         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
318         (gimplify_target_expr): Likewise.
319         (gimplify_cond_expr): Remove target handling.
320         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
321         (gimplify_expr): Clobber it here.
322         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
323         Do return slot optimization if we have an INIT_EXPR.
324
325         PR tree-opt/24365
326         * tree-inline.c (declare_return_variable): Also clear 
327         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
328
329         PR c++/16405
330         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
331
332         PR middle-end/22439
333         * gimplify.c (gimplify_one_sizepos): Fix typo.
334
335 2006-02-08  Jeff Law  <law@redhat.com>
336
337         PR tree-optimization/21417
338         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
339         across a backedge if the control statement at the end of the
340         block is data dependent on other statements in the same block.
341         (record_temporary_equivalences_from_stmts): Remove over-conservative
342         test for threading across backedges.
343
344         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
345         control statement, handle all three special cases in the same
346         manner as they all have the same desired solution.  No longer
347         special case edge flag updating when the post dominator is
348         the exit block.
349
350 2006-02-08  Roger Sayle  <roger@eyesopen.com>
351
352         * tree.def (CHAR_TYPE): Remove.
353         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
354         * dwarf2out.c (base_type_die, is_base_type): Likewise.
355         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
356         (gen_string_type_die): Delete unreachable function.
357
358         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
359         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
360         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
361         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
362         * builtins.c (type_to_class): Likewise.
363         * fold-const.c (fold_convert, build_range_check,
364         merge_ranges): Likewise.
365         * expr.c (count_type_elements): Likewise.
366         * c-pretty-print.c (pp_c_type_specifier): Likewise.
367         * stor-layout.c (layout_type): Likewise.
368         * ipa-type-escape.c (type_to_consider): Likewise.
369         * gimplify.c (omp_firstprivatize_type_sizes,
370         gimplify_type_sizes): Likewise.
371         * explow.c (promote_mode): Likewise.
372         * tree-sra.c (is_sra_scalar_type): Likewise.
373         * varasm.c (output_constant): Likewise.
374         * tree-inline.c (remap_type_1): Likewise.
375         * convert.c (convert_to_pointer, convert_to_real,
376         convert_to_integer, convert_to_complex): Likewise.
377
378 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
379
380         * df-scan.c (df_def_record_1): A set destination may
381         be a parallel regardless of mode.
382
383 2006-02-08  Roger Sayle  <roger@eyesopen.com>
384
385         PR target/22209
386         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
387         * config/mips/_tilib.c: Remove.
388         * config/fixtfdi.c: New libgcc source file.
389         * config/fixunstfdi.c: New source file.
390         * config/floatditf.c: New source file.
391         * config/floatunditf.c: New souce file.
392         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
393         files above instead of config/mips/_tilib.c.
394         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
395
396 2006-02-08  Jeff Law  <law@redhat.com>
397
398         PR tree-optimization/26169
399         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
400         threading jumps.
401
402 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
403
404         * df.h (DF_REG_SIZE): Return the length of the initialized
405         part of the array.
406
407 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
408
409         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
410         __muldf3): Return a correctly signed zero.
411
412 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
413
414         * passes.c (register_one_dump_file): Accept the current properties
415         instead of pass number.  Adjust call to dump_register.  Remove
416         duplicated code.
417         (register_dump_files): Now a wrapper around...
418         (register_dump_files_1): ... this one.  Do not modify the pass
419         structure.
420         (next_pass_1): Cosmetic fix.
421         (execute_todo): Keep second parameter only.  Use curr_properties
422         instead of fetching it from the pass structure.  Check and set
423         last_verified.
424         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
425         instead of fetching it from the pass structure.  Fix calls to
426         execute_todo.  Update curr_properties and initialize .vcg RTL dump
427         after running the pass.  Reset last_verified.
428         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
429         at the beginning.
430         (FIRST_AUTO_NUMBERED_DUMP): New.
431         (dump_register): Remove "num" parameter, assign it within the
432         function.
433         (get_dump_file_name): Modify template for dumps.
434         * tree-dump.h (dump_register): Adjust prototype.
435         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
436         (PROP_trees): Add PROP_gimple_lomp.
437         (TODO_set_props): New.
438         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
439         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
440         * cfgexpand.c (pass_expand): Destroy PROP_trees.
441
442 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
443
444         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
445         (sparc64-*-linux*): Likewise.
446         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
447         * config/sparc/t-linux: New file.
448         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
449         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
450         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
451         -m32 -mlong-double-128.
452
453         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
454         * config/alpha/t-linux: New file.
455         * config/alpha/libgcc-alpha-ldbl.ver: New file.
456
457         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
458         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
459         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
460         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
461         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
462         (CPP_ARCH32_SPEC): Remove.
463
464 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
465
466         PR tree-optimization/26145
467         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
468         bbs pointer.
469
470 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
471
472         PR target/26109
473         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
474         >= 240000 when generating code for SOM runtime.
475         (output_indirect_call): Don't use "b,l" instruction for indirect calls
476         to $$dyncall when generating code for SOM runtime..
477
478 2006-02-07  Dirk Mueller  <dmueller@suse.com>
479
480         PR c++/18150
481         * doc/invoke.texi (-Wsequence-point): Update documentation
482         that -Wsequence-point is implemented for C++ as well.
483
484 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
485
486         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
487         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
488         (LIB_SPEC): Likewise.
489         * doc/invoke.texi (SPARC options): Document -pthread.
490
491 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
492
493         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
494         PIC addresses.
495
496 2006-02-07  Roger Sayle  <roger@eyesopen.com>
497
498         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
499         Correct comment describing BOOLEAN_TYPE.
500
501 2006-02-07  Dirk Mueller  <dmueller@suse.com>
502
503         * c.opt: C++ frontend supports -Wdiv-by-zero.
504         * c-opts.c (c_common_handle_option): Remove dead case.
505
506 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
507
508         * configure.ac (TLS assembler check): Do not enable TLS by
509         default on SPARC/Solaris before version 10.
510         * configure: Regenerate.
511
512 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
513
514         * doc/invoke.texi (xl-compat): Document conversion and support
515         routine names.
516
517 2006-02-07  Jeff Law  <law@redhat.com>
518
519         * tree-vrp.c (find_conditional_asserts): Update comments.
520         (simplify_stmt_for_jump_threading): New.
521         (identify_jump_threads, finalize_jump_threads): New.
522         (vrp_finalize): Call identify_jump_threads.
523         (execute_vrp): Call finalize_jump_threads.
524         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
525         (vrp_element, vrp_data, vrp_element_p): Remove.
526         (vrp_hash_elt, vrp_variables_stack): Remove.
527         (vrp_hash, vrp_eq, record_range): Remove.
528         (simplify_cond_and_lookup_avail_expr): Remove.
529         (extract_range_from_cond): Remove.
530         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
531         (simplify_stmt_for_jump_threading): New.
532         (dom_thread_across_edge): New wrapper.
533         (tree_ssa_dominator_optimize): No longer initialize or
534         finalize any of the VRP datastructures.  Remove iteration
535         step and simplify as a result of removal of iteration step.
536         (pass_dominator): Perform a cfg cleanup after DOM.
537         (dom_opt_finalize_block): Use the new common routines
538         for threading jumps.  Simplify stack management slightly.
539         No longer need to unwind VRP state.
540         (record_equivalences_from_incoming_edge): No longer record
541         VRP information.
542         (eliminate_redundant_computations): No longer call
543         simplify_cond_and_lookup_avail_expr.
544         * tree-flow.h (potentially_threadable_block): Prototype.
545         (thread_across_edge): Likewise.
546         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
547         (tree-ssa-threadedge.o): Add dependencies.
548         * tree-ssa-threadedge.c: New file.
549         * passes.c (init_optimization_passes): Merge PHIs before
550         calling VRP.  Run VRP again late in the SSA optimization pipeline.
551
552 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
553
554         * df-core.c (df_set_blocks): Do not dereference function pointers.
555         (df_finish1): Likewise.
556         (df_hybrid_search_forward): Likewise.
557         (df_hybrid_search_backward): Likewise.
558         (df_iterative_dataflow): Likewise.
559         (df_analyze_problem): Likewise.
560         (df_compact_blocks): Likewise.
561         (df_dump): Likewise.
562         * df-scan.c (df_rescan_blocks): Likewise.
563         (df_record_entry_block_defs): Likewise.
564
565         * genconditions.c (write_conditions): Guard the definition of
566         'insn_conditions' with the check on GCC version.
567         (write_writer): Guard the traversal 'insn_conditions' with
568         the check on GCC version.
569
570 2006-02-07  Richard Guenther  <rguenther@suse.de>
571
572         PR c++/26140
573         Revert
574         2006-01-30  Richard Guenther  <rguenther@suse.de>
575         PR c++/23372
576         * gimplify.c (gimplify_target_expr): Handle easy cases
577         without creating a temporary.
578
579 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
580
581         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
582         use of float in probability computations.  Use edge probabilities
583         in place of statically computed probabilities.
584         (min_spec_prob): New static variable.
585         (schedule_insns): Initialize it.
586         (GET_SRC_PROB): Removed.
587         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
588
589 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
590
591         PR debug/24444
592         * config/ia64/unwind-ia64.c: Revert last change.
593         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
594         (INCOMING_FRAME_SP_OFFSET): Define.
595
596 2006-02-06  Roger Sayle  <roger@eyesopen.com>
597
598         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
599
600 2006-02-07  Ben Elliston  <bje@au.ibm.com>
601
602         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
603         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
604         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
605         (ix86_return_in_memory): Handle TDmode.
606         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
607         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
608
609 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
610
611         * reorg.c (dbr_schedule): Use dump_file instead of file.
612
613 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
614
615         PR target/25917
616         * config/ia64/predicates.md (extr_len_operand): New predicate.
617         * config/ia64/ia64.md (extv): Tighten constraints.
618         (extzv): Ditto.
619         (*tbit_and_2): Ditto.
620         (*tbit_and_3): Ditto.
621         (*tbit_or_2): Ditto.
622         (*tbit_or_3): Ditto.
623         (*bit_zero): Ditto.
624         (*bit_one): Ditto.
625
626 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
627
628         PR target/23359
629         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
630
631 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
632
633         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
634         loop_optimizer_init and loop_optimizer_finalize
635         * tree-ssa-sink.c (execute_sink_code): Ditto.
636         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
637         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
638         tree_ssa_loop_done): Ditto.
639         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
640         * sched-ebb.c: Include output.h.
641         (schedule_ebbs): Do not use dump argument.
642         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
643         * loop.c (loop_dump_stream): Removed.
644         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
645         argument.
646         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
647         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
648         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
649         loop_iterations, strength_reduce, record_biv, record_giv,
650         final_giv_value, check_final_value, check_ext_dependent_givs,
651         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
652         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
653         dump_file instead of loop_dump_stream.
654         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
655         argument dump_file.
656         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
657         dump argument.
658         * flow.c (life_analysis, rest_of_handle_life): Ditto.
659         * haifa-sched.c: Include output.h
660         (schedule_insns, sched_init): Do not use dump argument.
661         * mode-switching.c (optimize_mode_switching): Ditto.
662         * modulo-sched.c (stats_file): Removed.
663         (print_node_sched_params): Do not call argument dump_file.
664         (sms_schedule_by_order, loop_canon_p, sms_schedule,
665         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
666         of stats_file.
667         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
668         use dump argument.
669         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
670         rtl_loop_init, rtl_loop_done): Ditto.
671         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
672         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
673         Ditto.
674         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
675         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
676         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
677         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
678         * emit-rtl.c (renumber_insns): Ditto.
679         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
680         expand_gimple_basic_block, tree_expand_cfg): Ditto.
681         * regclass.c (regclass): Ditto.
682         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
683         remove_ssa_form, rewrite_out_of_ssa): Ditto.
684         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
685         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
686         Ditto.
687         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
688         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
689         to regclass.
690         * gcse.c (gcse_file, debug_stderr): Removed.
691         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
692         rest_of_handle_gcse): Do not use dump argument.
693         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
694         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
695         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
696         compute_code_hoist_vbeinout, compute_code_hoist_data,
697         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
698         compute_store_table, build_store_vectors, insert_insn_start_bb,
699         insert_store, remove_reachable_equiv_notes, replace_store_insn,
700         store_motion): Use dump_file instead of gcse_file.
701         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
702         * profile.c (profile_dump_file): Removed.
703         (branch_prob): Use dump_file instead of profile_dump_file.
704         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
705         dump_file.
706         * tree-ssa-copy.c (dump_copy_of): Ditto.
707         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
708         dump file to life_analysis.
709         * bt-load.c (branch_target_load_optimize): Ditto.
710         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
711         renumber_insns.
712         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
713         regclass, dbr_schedule): Declaration changed.
714         * sched-int.h (sched_init): Declaration changed.
715         * tree-profile.c (tree_profile_dump_file): Removed.
716         (tree_profile_hooks): Removed profile_dump_file hook.
717         * rtl-profile (rtl_profile_dump_file): Removed.
718         (rtl_profile_hooks): emoved profile_dump_file hook.
719         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
720         changed.
721         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
722         * tree-cfg.c (build_tree_cfg): Ditto.
723         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
724         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
725         Declaration changed.
726         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
727         life_analysis and schedule_insns.
728         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
729         life_analysis.
730         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
731         dbr_schedule.
732         * config/mips/mips.c (mips_reorg): Ditto.
733         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
734         schedule_ebbs.
735
736 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
737
738         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
739         (s390_mangle_fundamental_type): New.
740         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
741         Define.
742
743         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
744         (alpha_mangle_fundamental_type): New.
745         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
746         Define.
747
748         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
749         Define.
750         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
751         Define.
752         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
753         (sparc_mangle_fundamental_type): New.
754
755 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
756
757         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
758         (s390x-*-linux*): Likewise.
759         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
760         * config/s390/t-linux: New file.
761
762 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
763
764         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
765         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
766
767 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
768
769         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
770         (ANTIC_SAFE_LOADS): New macro.
771         (find_or_generate_expression): Add prototype.
772         (set_contains_value): Allow null set for sake of not always having
773         to allocate ANTIC_SAFE_LOADS.
774         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
775         Allow COMPONENT_REF too.
776         (valid_in_set): Allow COMPONENT_REF.
777         Check ANTIC_SAFE_LOADS too.
778         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
779         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
780         rename.
781         (can_PRE_operation): Add COMPONENT_REF.
782         (create_component_ref_by_pieces): New function.
783         (create_expression_by_pieces): Use create_component_ref_by_pieces.
784         (insert_aux): Move AGGREGATE_TYPE_P check here.
785         (compute_avail): Set bb local stmt uids.
786         (pass_pre): Use TODO_update_ssa_only_virtuals.
787         
788 2006-02-06  Ben Elliston  <bje@au.ibm.com>
789
790         * configure.ac: Unconditionally disable decimal float by default.
791         * configure: Regenerate.
792
793 2006-02-06  Ben Elliston  <bje@au.ibm.com>
794
795         * read-rtl.c (read_name): Terminate reading on EOF.
796
797 2006-02-06  Ben Elliston  <bje@au.ibm.com>
798
799         * dfp.c (decimal_real_arithmetic): Change second argument type
800         from int to enum tree_code. Do not always return true, but now
801         return result of any call to decimal_do helper functions.
802         * dfp.h (decimal_real_arithmetic): Update prototype.
803
804 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
805
806         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
807
808 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
809
810         PR tree-opt/25251
811         * tree-cfg.c (cleanup_dead_labels): Also don't remove
812         forced labels.
813
814 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
815
816         * tree-vrp.c (cfg_loops): Removed.
817         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
818         Use current_loops instead of cfg_loops.  Pass flags to
819         loop_optimizer_init.
820         * cfgloopmanip.c (fix_loop_structure): Update only available
821         information.
822         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
823         loop_optimizer_init.
824         * modulo-sched.c (build_loops_structure): Removed.
825         (sms_schedule): Use loop_optimizer_init.
826         * loop-init.c (loop_optimizer_init): Use flags to determine
827         which properties of loops to prepare.
828         (rtl_loop_init): Pass flags to loop_optimizer_init.
829         * tree-ssa-sink.c (execute_sink_code): Ditto.
830         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
831         * tree-ssa-pre.c (init_pre): Ditto.
832         * cfgloop.h (LOOPS_NORMAL): New.
833         (loop_optimizer_init): Declaration changed.
834
835 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
836
837         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
838         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
839         pa/t-pa.
840         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
841         pa/t-pa.
842         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
843         pa/x-ada.
844         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
845         * pa/t-pa64: Delete quadlib.c rule.
846         * pa/x-ada: Revert last change.
847         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
848
849 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
850
851         PR rtl-optimization/26087
852         * rtlanal.c (canonicalize_condition): Do not cross basic block
853         boundaries.
854
855 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
856
857         PR debug/24444
858         * config/ia64/ia64.c: Include debug.h.
859         (MAX_ARTIFICIAL_LABEL_BYTES): New.
860         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
861         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
862         (process_epilogue, process_set, process_for_unwind_directive):
863         Output unwind info only if requested.  Add CFA info if requested.
864         Add new arguments as needed.  Adjust callers.
865         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
866         incorrect default.
867         (DWARF2_FRAME_INFO): Define to zero.
868         * config/ia64/unwind-ia64.c: Remove code that compensated for
869         the CFA offset error fixed above.
870         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
871         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
872         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
873         -funwind-tables and -fexceptions to enable frame info.
874         (dwarf2out_frame_init): Define initial CFA even if
875         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
876         DWARF2_UNWIND_INFO is nonzero, not just defined.
877         (dwarf2out_frame_finish): Output non-EH call frame info only
878         if DWARF2_FRAME_INFO is nonzero.
879         (convert_cfa_to_loc_list,
880         compute_frame_pointer_to_cfa_displacement): Define even if
881         unwind info is not supported.
882         (gen_subprogram_die): Use the above unconditionally.  Remove
883         legacy alternate code.
884         * toplev.c (compile_file): Compile in call to
885         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
886         (lang_dependent_init): Ditto for dwarf2out_frame_init.
887
888 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
889             Jakub Jelinek  <jakub@redhat.com>
890
891         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
892         IBM extended float format long double as "g" on powerpc*-linux.
893
894 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
895
896         PR target/25926
897         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
898         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
899
900 2006-02-03  Jason Merrill  <jason@redhat.com>
901
902         PR c++/25979
903         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
904
905         PR middle-end/25977
906         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
907         on the return slot if it's an NRV.
908
909 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
910
911         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
912         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
913         rewrite_use): Do not handle USE_OUTER.
914         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
915         add_iv_outer_candidates, may_replace_final_value,
916         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
917         (find_interesting_uses_op): Functionality of
918         find_interesting_uses_outer_or_nonlin moved here.
919         (find_interesting_uses_outside): Use find_interesting_uses_op.
920
921 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
922
923         PR target/25960
924         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
925
926 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
927             Ulrich Weigand  <uweigand@de.ibm.com>
928
929         PR target/25864
930         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
931         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
932         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
933         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
934         and dxr fields.
935         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
936         (s390_rtx_costs): Use the new fields to calculate rtx costs.
937         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
938         Define secondary reloads for TFmode moves.
939         (constant_modes): Add TFmode.
940         (NR_C_MODES): Set to 8.
941         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
942         builtin define.
943         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
944         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
945         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
946         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
947         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
948         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
949         (FPR mode macro): Add TFmode.
950         (DSF mode macro): New.
951         (<de>, <dee> mode attributes): Removed.
952         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
953         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
954         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
955         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
956         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
957         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
958         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
959         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
960         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
961         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
962         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
963         "*negabs<mode>2", "sqrt<mode>2"):
964         Changed <de> to <xde>. R constraint replaced by <Rf>.
965         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
966         <Rf>.
967         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
968         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
969         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
970         splitters.
971         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
972         "extenddftf2", "extendsftf2"): New expanders.
973         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
974         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
975         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
976         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
977         New options.
978         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
979         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
980         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
981         __floatditf): Add a GCC_4.1.0 symbol version tag.
982         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
983         the new options.
984
985 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
986
987         PR target/25377
988         * config/i386/i386.c (ix86_function_ok_for_sibcall):
989         Use targetm.binds_local_p instead of TREE_PUBLIC.
990
991 2006-02-02  Roger Sayle  <roger@eyesopen.com>
992
993         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
994         on INTEGER_TYPEs to indicate that it denotes a character type.
995         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
996         signed_char_type_node, unsigned_char_type_node and char_type_node.
997         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
998         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
999         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1000
1001 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1002             Daniel Berlin  <dberlin@dberlin.org>
1003
1004         * tree-tailcall.c (arg_needs_copy_p): New function.
1005         (eliminate_tail_call): Use arg_needs_copy_p.
1006         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1007         (add_virtual_phis): New function.
1008
1009 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1010
1011         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1012         #ignore instead of #scratch for %g7 .register directive.
1013
1014 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1015
1016         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1017         object files.
1018
1019 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1020
1021         * flow.c (calculate_global_regs_live): Assert that there aren't any
1022         EDGE_FAKE edges.
1023
1024 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1025
1026         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1027         what its name says.
1028         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1029         bsi_after_labels iterator.
1030         * tree-if-conv.c (find_phi_replacement_condition,
1031         replace_phi_with_cond_modify_expr): Likewise.
1032         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1033         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1034
1035 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1036
1037         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1038
1039 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1040
1041         PR 25990
1042         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1043         array after growing it.
1044
1045 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1046
1047         PR middle-end/24901
1048         * fold-const.c (fold_checksum_tree): Change type of buf.
1049
1050 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1051
1052         * reload.c (push_secondary_reload): Initialize t_icode.
1053
1054 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1055
1056         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1057         -msoft-float -mlong-double-128 only issue a warning, but don't
1058         swich to DFmode long double.
1059
1060 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1061
1062         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1063         has a constant equivalent, iterate over equivalents for arg0,
1064         calling simplify_relational_operation and if there's a result
1065         cheaper than X, apply fold_rtx and return the result.
1066
1067 2006-02-01  Jan Hubicka  <jh@suse.cz>
1068
1069         * opts.c (no_unit_at_a_time_default): New global variable.
1070         (decode_options): Use it.
1071         * opts.h (no_unit_at_a_time_default): Declare.
1072
1073 2006-02-01  Paul Brook  <paul@codesourcery.com>
1074
1075         * function.c (assign_parm_setup_reg): Use function argument promotion
1076         rules.
1077         * expr.c (expand_expr_real_1): Use function argument promotion rules
1078         for PARM_DECLs.
1079
1080 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1081
1082         * gcc.c (process_command): Change j to 'unsigned int'.
1083
1084 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1085
1086         PR middle-end/26001
1087         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
1088         Use the corrected index for the character
1089         out of the string constant.
1090
1091 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1092
1093         * mode-switching.c (optimize_mode_switching): Fix size
1094         allocated for bb_info[n_entities].
1095
1096 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1097
1098         * gcc.c (main): Correct type that is allocated for
1099         explicit_link_files.
1100
1101 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
1102
1103         * config/s390/s390.c (init_alignment_context): Set
1104         ALIAS_SET_MEMORY_BARRIER on the MEM.
1105         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
1106
1107 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
1108
1109         PR middle-end/25933
1110         * loop-unroll.c (unroll_loop_runtime_iterations): Free
1111         dom_bbs pointer.
1112         * tree-ssa-live.c (type_var_init): Allocate bitmap after
1113         call to tpa_init.
1114
1115 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
1116
1117         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
1118         * regrename.c: Ditto.
1119         * tree-ssa-loop-im.c: Ditto.
1120         * tree-dump.c: Ditto.
1121         * tree-complex.c: Ditto.
1122         * genrecog.c: Ditto.
1123         * tree-ssa-threadupdate.c: Ditto.
1124         * tracer.c: Ditto.
1125         * java/class.c: Ditto.
1126         * java/jcf-parse.c: Ditto.
1127         * java/resource.c: Ditto.
1128         * java/except.c: Ditto.
1129         * java/jvspec.c: Ditto.
1130         * java/jcf-write.c: Ditto.
1131         * java/jcf-path.c: Ditto.
1132         * java/gjavah.c: Ditto.
1133         * java/zextract.c: Ditto.
1134         * java/jcf-io.c: Ditto.
1135         * java/jcf.h: Ditto.
1136         * java/buffer.c: Ditto.
1137         * java/lang.c: Ditto.
1138         * java/parse-scan.y: Ditto.
1139         * java/lex.c: Ditto.
1140         * java/lex.h: Ditto.
1141         * cfgloopmanip.c: Ditto.
1142         * postreload-gcse.c: Ditto.
1143         * tree-ssa-loop-manip.c: Ditto.
1144         * postreload.c: Ditto.
1145         * tree-ssa-loop-ch.c: Ditto.
1146         * loop.c: Ditto.
1147         * ipa-cp.c: Ditto.
1148         * cppspec.c: Ditto.
1149         * diagnostic.c: Ditto.
1150         * final.c: Ditto.
1151         * genoutput.c: Ditto.
1152         * gcc.c: Ditto.
1153         * cfghooks.c: Ditto.
1154         * cfgloopanal.c: Ditto.
1155         * objc/objc-act.c: Ditto.
1156         * gcov.c: Ditto.
1157         * genextract.c: Ditto.
1158         * genautomata.c: Ditto.
1159         * pretty-print.c: Ditto.
1160         * genemit.c: Ditto.
1161         * cgraphunit.c: Ditto.
1162         * flow.c: Ditto.
1163         * df-scan.c: Ditto.
1164         * haifa-sched.c: Ditto.
1165         * dominance.c: Ditto.
1166         * dbxout.c: Ditto.
1167         * tree-ssa-loop-ivopts.c: Ditto.
1168         * df-core.c: Ditto.
1169         * mode-switching.c: Ditto.
1170         * modulo-sched.c: Ditto.
1171         * graph.c: Ditto.
1172         * ipa-pure-const.c: Ditto.
1173         * cse.c: Ditto.
1174         * fix-header.c: Ditto.
1175         * web.c: Ditto.
1176         * tree-stdarg.c: Ditto.
1177         * ipa-utils.c: Ditto.
1178         * loop-init.c: Ditto.
1179         * ipa-inline.c: Ditto.
1180         * cfganal.c: Ditto.
1181         * global.c: Ditto.
1182         * alloc-pool.c: Ditto.
1183         * dwarf2out.c: Ditto.
1184         * opts.c: Ditto.
1185         * genattrtab.c: Ditto.
1186         * tree-ssa-loop-ivcanon.c: Ditto.
1187         * predict.c: Ditto.
1188         * timevar.c: Ditto.
1189         * lcm.c: Ditto.
1190         * fortran/gfortranspec.c: Ditto.
1191         * regmove.c: Ditto.
1192         * local-alloc.c: Ditto.
1193         * langhooks.c: Ditto.
1194         * function.c: Ditto.
1195         * tree-vectorizer.c: Ditto.
1196         * gcse.c: Ditto.
1197         * ipa-type-escape.c: Ditto.
1198         * alias.c: Ditto.
1199         * tree-if-conv.c: Ditto.
1200         * profile.c: Ditto.
1201         * ipa.c: Ditto.
1202         * tree-data-ref.c: Ditto.
1203         * loop-unroll.c: Ditto.
1204         * treelang/treetree.c: Ditto.
1205         * calls.c: Ditto.
1206         * bt-load.c: Ditto.
1207         * ggc-common.c: Ditto.
1208         * except.c: Ditto.
1209         * coverage.c: Ditto.
1210         * cselib.c: Ditto.
1211         * tree-cfgcleanup.c: Ditto.
1212         * tree-ssa-pre.c: Ditto.
1213         * cfgcleanup.c: Ditto.
1214         * loop-invariant.c: Ditto.
1215         * loop-iv.c: Ditto.
1216         * ipa-prop.c: Ditto.
1217         * print-tree.c: Ditto.
1218         * conflict.c: Ditto.
1219         * ggc-page.c: Ditto.
1220         * sched-deps.c: Ditto.
1221         * regclass.c: Ditto.
1222         * tree-object-size.c: Ditto.
1223         * combine.c: Ditto.
1224         * bb-reorder.c: Ditto.
1225         * resource.c: Ditto.
1226         * var-tracking.c: Ditto.
1227         * cfgloop.c: Ditto.
1228         * df-problems.c: Ditto.
1229         * reg-stack.c: Ditto.
1230         * tlink.c: Ditto.
1231         * gccspec.c: Ditto.
1232         * sched-rgn.c: Ditto.
1233         * tree-ssa-structalias.c: Ditto.
1234         * tree-ssa-reassoc.c: Ditto.
1235         * config/darwin-c.c: Ditto.
1236         * config/darwin.c: Ditto.
1237         * config/arm/arm.c: Ditto.
1238         * cfgrtl.c: Ditto.
1239         * collect2.c: Ditto.
1240         * reload1.c: Ditto.
1241
1242 2006-01-31  Nicolas Pitre  <nico@cam.org>
1243
1244         * arm.md (smaxsi3): Make aware of smax_m1.
1245         (smax_m1): New.
1246
1247 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
1248
1249         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
1250
1251 2006-01-31  Richard Guenther  <rguenther@suse.de>
1252
1253         * doc/invoke.texi (-msselibm): Document.
1254         * target.h (expand_library_builtin): New target hook.
1255         * builtins.c (expand_builtin): Use expand_library_builtin.
1256         (default_expand_library_builtin): New function.
1257         * gcc.c (LINK_GCC_MATH_SPEC): Define.
1258         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
1259         (link_gcc_math_spec): Declare.
1260         (static_specs): Add link_gcc_math_spec.
1261         * expr.h (default_expand_library_builtin): Declare.
1262         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
1263         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
1264         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
1265         * config/i386/i386.opt (msselibm): New target option.
1266         * config/i386/i386.c (ix86_builtin_function_variants): New array.
1267         (ix86_init_sse_abi_builtins): New function.
1268         (ix86_expand_library_builtin): Likewise.
1269         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
1270         (override_options): Handle error conditions wrt -msselibm.
1271         (ix86_builtins): Add function codes for SSE2 ABI builtins.
1272         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
1273         * doc/extend.texi (__builtin_sse2_*): Document new target specific
1274         builtins.
1275
1276 2006-01-31  Richard Guenther  <rguenther@suse.de>
1277         Paolo Bonzini  <bonzini@gnu.org>
1278
1279         * doc/install.texi (--disable-libgcc-math): Document.
1280
1281 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
1282
1283         * expr.h (expand_normal): new inline function.
1284         * builtins.c: use it, use EXPAND_NORMAL explicitely.
1285         * dojump.c: use it.
1286         * dwarf2out.c: use it.
1287         * expr.c: use it.
1288         * calls.c: use it.
1289         * expmed.c: use it.
1290         * except.c: use it.
1291         * config/sparc/sparc.c: use it.
1292         * config/i386/i386.c: use it.
1293         * config/rs6000/rs6000.c: use it.
1294         * config/arm/arm.c: use it.
1295         * config/mips/mips.c: use it.
1296         * stmt.c: use it, use EXPAND_NORMAL explicitely.
1297
1298 2006-01-30  Roger Sayle  <roger@eyesopen.com>
1299
1300         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
1301         argv to the appropriate type.
1302
1303 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
1304
1305         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
1306         unreachable code.
1307
1308 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
1309
1310         PR target/26018
1311         * config/s390/s390.c (struct machine_function): New flag
1312         decomposed_literal_pool_addresses_ok_p.
1313         (s390_reorg): Set it before final stage of literal pool transforms.
1314         (s390_decompose_address): Only accept displacements of the form
1315         (minus (label_ref ...) (label_ref ...)) if that flag is set.
1316
1317 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
1318
1319         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
1320         the comparison routine return.
1321
1322 2006-01-30  Michael Matz  <matz@suse.de>
1323
1324         * global.c (find_reg): Only evict for global regs.
1325         Take n_refs into account and dump more info.
1326
1327 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
1328
1329         PR target/14798:
1330         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
1331         (pragma_trap, pragma_nosave_low_regs): Likewise.
1332         (current_function_anonymous_args): Likewise.
1333         (sh_deferred_function_attributes): New variable.
1334         (sh_deferred_function_attributes_tail): Likewise.
1335         (print_operand): For '@', look up trap_exit attribute.
1336         (calc_live_regs): Look up trapa_handler attribute.  For trapa
1337         handlers, save/restore fpscr, but don't do any other
1338         interrupt-specific saves.
1339         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
1340         Fix check for partially saved registers to check for SHmedia.
1341         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
1342         (sh_output_function_epilogue): Don't clear any of the removed
1343         variables.
1344         (sh_insert_attributes): Don't check pragma_interrupt.
1345         Insert deferred attributes.  Check that interrupt attribute is
1346         present for other attributes that require its presence.
1347         (sh_attribute_table): Add new attributes trapa_handler and
1348         nosave_low_regs.
1349         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
1350         Don't check for pragma_interrupt.  Don't store argument.
1351         * sh.h (pragma_interrupt, sp_switch): Don't declare.
1352         (sh_deferred_function_attributes): Declare.
1353         (sh_deferred_function_attributes_tail): Likewise.
1354         * sh.md (sp_switch_1): Add operand.  Change generator caller.
1355         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
1356         (*return_i): Don't use when trap_exit attribute is in effect.
1357         (*return_trapa): New insn pattern.
1358         * sh-c.c: New file.
1359         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
1360         setting c_target_objs and cxx_target_objs.
1361         * t-sh: Add rule for sh-c.o.
1362
1363 2006-01-30  Richard Guenther  <rguenther@suse.de>
1364
1365         PR c++/23372
1366         * gimplify.c (gimplify_target_expr): Handle easy cases
1367         without creating a temporary.
1368
1369 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
1370
1371         * vec.h (safe_grow): Remove duplicated line.
1372
1373 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
1374
1375         PR 25874
1376         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
1377         (expand_omp): ... here.
1378         (expand_omp_parallel): Only remove barriers for combined
1379         parallel+workshare constructs.
1380
1381 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
1382
1383         Revert
1384
1385         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
1386         * tree.c (build_qualified_type): Chain the new type to the original
1387         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
1388         a POINTER_TYPE or a REFERENCE_TYPE respectively.
1389         (build_pointer_type_for_mode): Only return unqualified types.
1390         (build_reference_type_for_mode): Likewise.
1391
1392 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
1393
1394         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
1395         * Makefile.in (CXX_COMPAT_WARN): Define.
1396         * configure: Regenerate.
1397
1398 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
1399
1400         PR tree-opt/25911
1401         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
1402         to an if check.
1403
1404 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1405
1406         * toplev.c: Fix thinko.
1407
1408 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1409             Marcin Dalecki  <martin@dalecki.de>
1410
1411         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
1412         (push_srcloc): Use XNEW.
1413         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
1414
1415 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
1416
1417         * df-core.c (df_set_blocks): Deleted all variable.
1418
1419 2006-01-28  Ian Lance Taylor  <ian@airs.com>
1420
1421         * cgraphunit.c (cgraph_assemble_pending_functions): Call
1422         cgraph_output_pending_asms.
1423
1424 2006-01-28  Zack Weinberg  <zackw@panix.com>
1425
1426         * c.opt: Add -W(no-)overlength-strings.
1427         * doc/invoke.texi: Document it.
1428         * c-opts.c (c_common_handle_option): -pedantic implies
1429         -Woverlength-strings, if not explicitly disabled already.
1430         (c_common_post_options): -Woverlength-strings defaults to off, and
1431         is always off for C++.
1432         * c-common.c (fix_string_type): Issue warning about strings longer
1433         than is portable only if warn_overlength_strings.  Rearrange code
1434         a little for clarity.
1435         * configure.in: Check for -Wno-overlength-strings as well before
1436         enabling -pedantic in stage 1.
1437         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
1438         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
1439
1440         * genconditions.c (write_header, write_one_condition)
1441         (write_conditions, write_writer): Consolidate very long strings
1442         that were broken up to fit in C89 portable limit.  Don't use
1443         printf when fputs will do.
1444
1445 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
1446
1447         * combine.c (simplify_comparison <AND>): Check
1448         TRULY_NOOP_TRUNCATION before start using a subreg.
1449
1450         * config/mips/mips.md (*branch_zero<mode>,
1451         *branch_zero<mode>_inverted, *branch_equality<mode>,
1452         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
1453         Remove mode check from comparisons.
1454
1455 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
1456
1457         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
1458
1459 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
1460
1461         * expmed.c (const_mult_add_overflow_p): Remove.
1462         * expr.h: Remove the prototype for const_mult_add_overflow_p.
1463
1464         * recog.c (validate_replace_rtx_subexp): Remove.
1465         * recog.h: Remove the prototype for
1466         validate_replace_rtx_subexp.
1467
1468         * integrate.h: Remove the prototype for
1469         copy_decl_for_inlining.
1470         * rtl.h: Remove the prototype for mark_constant_function.
1471         * tree-vectorizer.h: Remove the prototype for
1472         vect_strip_conversion.
1473
1474         * modulo-sched.c (create_partial_schedule,
1475         free_partial_schedule, reset_partial_schedule): Make them
1476         static.
1477
1478         * hooks.c (hook_bool_rtx_int_false): Remove.
1479         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
1480
1481 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
1482
1483         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
1484         and -mlong-double-128 are incompatible.
1485         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
1486         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
1487         (TARGET_LIBGCC2_CFLAGS): Define.
1488         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
1489         (TARGET_LIBGCC2_CFLAGS): Same.
1490         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
1491
1492 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
1493
1494         PR c/19606.
1495         * c-typeck.c (build_binary_op): Perform implicit casts of
1496         operands before shortening them.
1497
1498         * cfgloopmanip.c (split_loop_bb): Remove.
1499         * cfgloop.h: Remove the prototype for split_loop_bb.
1500
1501         * cfgloop.c (flow_loop_outside_edge_p): Remove.
1502         * cfgloop.h: Remove the prototype for
1503         flow_loop_outside_edge_p.
1504
1505         * emit-rtl.c (init_virtual_regs): Make it static.
1506         * function.h: Remove the prototype for init_virtual_regs.
1507
1508         * recog.c (peephole2_optimize): Make it static.
1509         * recog.h: Remove the prototype for peephole2_optimize.
1510
1511 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
1512
1513         * df-scan.c (df_record_entry_block_defs): Check if
1514         INCOMING_RETURN_ADDR_RTX is defined.
1515
1516 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
1517             Kenneth Zadeck <zadeck@naturalbridge.com>
1518
1519         PR rtl-optimization/24762
1520         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
1521         * targhooks.c (hook_void_bitmap): New hook prototype.
1522         * targhoohs.h (hook_void_bitmap): Ditto.
1523         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
1524         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
1525         * target.h (live_on_entry): New function pointer.
1526         * df-scan.c (df_all_hard_regs): Removed.
1527         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
1528         (df_scan_free_internal): Added df->entry_block_defs.
1529         (df_scan_alloc): Ditto.
1530         (df_scan_dump): Ditto.
1531         (df_uses_record): Plumbed flag field properly thru calls.
1532         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
1533         This part fixes PR24762.
1534         (df_bb_refs_record): Added code to make the frame and arg
1535         pointers live in EH blocks.
1536         (df_refs_record): Added call to df_record_entry_block_defs.
1537         (df_record_entry_block_defs): New function.
1538         * df-core.c: Added comments to describe new artifical defs.
1539         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
1540         (entry_block_defs): New field in struct df.
1541         (df_all_hard_regs): Deleted.
1542         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
1543         * df-problems.c (df_ru_bb_local_compute_process_def):
1544         Added code to handle artifical defs in the entry to a function.
1545         (df_ru_bb_local_compute): Ditto.
1546         (df_rd_bb_local_compute_process_def):  Ditto.
1547         (df_rd_bb_local_compute): Ditto.
1548         (df_lr_bb_local_compute): Ditto.
1549         (df_ur_bb_local_compute): Ditto.
1550         (df_urec_bb_local_compute):  Ditto.
1551         (df_chain_create_bb):  Ditto.
1552         (df_ur_local_finalize): Removed entry.
1553         (df_urec_init): Ditto.
1554         (df_urec_local_finalize): Ditto.
1555         (df_ri_bb_compute): Added detection of last use of pseudos.
1556         * Makefile.in (df-scan.o): Updated dependencies.
1557         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
1558         * config/mips/mips.c (mips_set_live_on_entry): Added.
1559         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
1560         for target hook.
1561         * dce.c (marked_insn_p): Added code to handle artifical defs.
1562
1563 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
1564
1565         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
1566         intrinsic.
1567         (_mm_cvtsi128_si64): Likewise.
1568         (_mm_cvtsd_si64): Likewise.
1569         (_mm_cvttsd_si64): Likewise.
1570         (_mm_cvtsi64_sd): Likewise.
1571         (_mm_cvtsi64_si128): Likewise.
1572         * config/i386/mmintrin.h (_m_from_int64): Likewise.
1573         (_mm_cvtsi64_m64): Likewise.
1574         (_m_to_int64): Likewise.
1575         (_mm_cvtm64_si64): Likewise.
1576         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
1577         (_mm_cvttss_si64): Likewise.
1578         (_mm_cvtsi64_ss): Likewise.
1579         (_mm_cvtss_f32): Likewise.
1580
1581 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
1582
1583         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
1584         for pragma redefine_extname.
1585
1586 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
1587
1588         PR target/25864
1589         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
1590         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
1591         -mno-minimal-toc to previous content.
1592         (bispecs): Remove goal.
1593         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
1594         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
1595         compatibility aliases on powerpc-*-*gnu*.
1596         * config/rs6000/libgcc-ppc-glibc.ver: New file.
1597         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
1598         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
1599         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
1600         (ldblspecs): New goal.
1601         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
1602         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
1603         _df_to_tf.
1604         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
1605         L_sf_to_tf or L_df_to_tf is defined.
1606
1607 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
1608             Alan Modra  <amodra@bigpond.net.au>
1609
1610         PR target/25864
1611         * config/rs6000/linux.h (POWERPC_LINUX): Define.
1612         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
1613         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
1614         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
1615         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
1616         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
1617         (rs6000_override_options): Initialize rs6000_ieeequad.
1618         Initialize TFmode format to ibm_extended_format if not
1619         TARGET_IEEEQUAD.
1620         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
1621         ieeelongdouble.
1622         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
1623         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
1624         (function_arg_advance): IBM long double passed in two FPRs, not
1625         split.
1626         (function_arg): IBM long double passed in FPRs.
1627         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
1628         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
1629         Only multireg GPR aligned.
1630         (rs6000_init_libfuncs): Enable IBM long double functions if not
1631         IEEEQUAD.
1632         (rs6000_generate_compare): Use IBM long double compare if not
1633         TARGET_IEEEQUAD.
1634         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
1635         (TARGET_IEEEQUAD): Define.
1636         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
1637         not TARGET_IEEEQUAD.
1638         * config/rs6000/rs6000.md: Enable TFmode patterns if
1639         !TARGET_IEEEQUAD.
1640         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
1641         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
1642         and -mlong-double-128 are incompatible.
1643         * doc/invoke.texi (-mabi): Collect options together.  Add
1644         ibmlongdouble and ieeelongdouble.
1645
1646 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
1647
1648         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
1649         opaque type.
1650         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
1651         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
1652         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
1653         * rtl.h (rtunion_def): Remove rt_ptr.
1654         (X0PTR): Delete.
1655         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
1656         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
1657         * config/i386/winnt.c (i386_pe_mark_dllexport)
1658         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
1659
1660 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
1661
1662         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
1663
1664 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
1665
1666         PR other/24829
1667         PR target/24831
1668         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
1669         pthread_key_delete.  From John David Anglin.  gthrw-ify
1670         pthread_getunique_np only if it it's not a macro.  Delete
1671         UNUSED macro.
1672         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
1673         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
1674         __gthread_objc_condition_signal, __gthread_key_delete): Add
1675         "__attribute__ ((__unused__))" to unused arguments.
1676         (__gthread_recursive_mutex_init_function): Add missing return.
1677         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
1678         gthr-posix95.h: Use macro-based approach for name redirection
1679         on targets missing weakref.
1680
1681 2006-01-26  Zack Weinberg  <zackw@panix.com>
1682
1683         * genconditions.c (write_header): In generated code, #ifdef out
1684         all includes and fake declarations, except includes of bconfig.h
1685         and system.h, unless GCC_VERSION >= 3001.  Do not include
1686         gensupport.h in any case.
1687         (write_conditions): Generate a definition of struct c_test.  Add
1688         a comment to the generated #endif.
1689         (write_one_condition): Escape backslashes in string too.
1690         (write_writer): Generated code must escape backslashes and quote
1691         marks (but not newlines) in the strings it writes.
1692         * Makefile.in (build/gencondmd.o): Update dependencies.
1693
1694 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
1695
1696         PR target/25961
1697         * Makefile.in (insn-automata.o): Add header file dependencies.
1698         * genautomata.c: Add includes.
1699
1700 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
1701
1702         PR target/25961
1703         * Makefile.in (insn-automata.o): Add -Wno-error flag.
1704
1705 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
1706
1707         * configure.ac: Expect target tools paths to be passed from the toplevel
1708         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
1709         AS_SET_VAR_IF.
1710         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
1711
1712 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
1713
1714         PR c/25892
1715         * c.opt (Wpointer-sign): Init to -1.
1716         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
1717         OPT_pedantic, to 0 otherwise.
1718         * doc/invoke.texi: Update.
1719
1720 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
1721
1722         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
1723         constants provided by 80387 instructions in the destination mode.
1724
1725 2006-01-26  Richard Guenther  <rguenther@suse.de>
1726             Andrew Pinski  <pinskia@physics.uc.edu>
1727
1728         PR tree-opt/21470
1729         partial PR tree-opt/17064
1730         * tree-ssa-structalias.c (intra_create_variable_infos):
1731         Create heap variables for incoming parameters if
1732         flag_argument_noalias > 1.
1733         (find_what_p_points_to): Look through default defs of
1734         parameter decls.
1735
1736 2006-01-26  Jeff Law  <law@redhat.com>
1737
1738         PR ada/25900
1739         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
1740         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
1741         within the VR_RANGE, use the VR_RANGE as the result, not the
1742         VR_ANTI_RANGE.
1743         (adjust_range_with_scev): Reject ranges from SCEV which are out of
1744         bounds for the type.
1745
1746 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
1747
1748         * tree-ssa-alias.c (maybe_create_global_var): Change
1749         subvar walking to an assertion that we don't have subvar'd variables.
1750
1751 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
1752
1753         PR C/25861
1754         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
1755         Use a new variable, inner.  PARM_DECLs are always non-weak.
1756
1757 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
1758
1759         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
1760         --disable-checking.
1761
1762 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
1763
1764         * config/mips/mips.md (*clear_upper32): New combiner pattern.
1765
1766 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
1767
1768         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
1769         (smax_insn, smin_insn, smax_0, smin_0): New.
1770
1771 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
1772
1773         PR target/25947
1774         * config/cris/cris.c (cris_order_for_addsi3): New function.
1775         * config/cris/cris-protos.h: Prototype it.
1776         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
1777         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
1778         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
1779         (split for "op.S1 [rx=rx+i],ry (swapped)")
1780         (split for "op(s|u).S1 [rx=rx+i],ry")
1781         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
1782         Apply cris_order_for_addsi3 when generating addsi3 insns.
1783
1784 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
1785
1786         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
1787         (TREE_BLOCK): Add call to EXPR_CHECK.
1788
1789 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
1790
1791         PR 25886
1792         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
1793         * tree-pretty-print.c (dump_omp_clause): Extract from ...
1794         (dump_omp_clauses): ... here.
1795         (dump_generic_node): Handle OMP_CLAUSE.
1796         * tree.c (omp_clause_num_ops): New.
1797         (omp_clause_code_name): New.
1798         (tree_code_size): Handle OMP_CLAUSE.
1799         (tree_size): Likewise.
1800         (make_node): Document handling of OMP_CLAUSE.
1801         (tree_node_structure): Handle OMP_CLAUSE.
1802         (omp_clause_check_failed): New.
1803         (omp_clause_range_check_failed): New.
1804         (omp_clause_operand_check_failed): New.
1805         (build_omp_clause): New.
1806         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
1807         * tree.h (enum omp_clause_code): Declare.
1808         (OMP_CLAUSE_SUBCODE_CHECK): Define.
1809         (OMP_CLAUSE_RANGE_CHECK): Define.
1810         (OMP_CLAUSE_ELT_CHECK): Define.
1811         (omp_clause_check_failed): Declare.
1812         (omp_clause_operand_check_failed): Declare.
1813         (omp_clause_range_check_failed): Declare.
1814         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
1815         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
1816         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
1817         (OMP_CLAUSE_LASTPRIVATE): Likewise.
1818         (OMP_CLAUSE_IF_EXPR): Likewise.
1819         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
1820         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
1821         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
1822         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
1823         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
1824         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
1825         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
1826         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
1827         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
1828         (OMP_CLAUSE_CODE): Define.
1829         (OMP_CLAUSE_SET_CODE): Define.
1830         (OMP_CLAUSE_CODE): Define.
1831         (OMP_CLAUSE_OPERAND): Define.
1832         (struct tree_omp_clause): Declare.
1833         (union tree_node): Add field 'omp_clause'.
1834         * treestruct.def (TS_OMP_CLAUSE): Define.
1835         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
1836         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
1837         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
1838         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
1839         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
1840         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
1841         (OMP_CLAUSE): Define.
1842         * print-tree.c (print_node): Handle OMP_CLAUSE.
1843         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
1844         * c-typeck.c: Likewise.
1845         * gimplify.c: Likewise.
1846         * c-omp.c: Likewise.
1847         * tree-nested.c: Likewise.
1848         * tree-inline.c: Likewise.
1849         * c-parser.c: Likewise.
1850         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
1851         clauses.
1852
1853 2006-01-25  Roger Sayle  <roger@eyesopen.com>
1854
1855         PR rtl-optimization/25703
1856         * combine.c (try_combine): Handle zero_extract and strict_low_part
1857         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
1858
1859 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
1860
1861         * global.c: Fix comment typos.
1862
1863 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
1864
1865         PR target/25758
1866         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
1867         Use output_addr_const instead of assemble_name.
1868
1869 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
1870
1871         * Makefile.in (sched-vis.o): Update dependencies.
1872         * haifa-sched.c (sched_finish): Clear current_sched_info.
1873         * cfg.c (dump_bb_info): New, split from dump_flow_info.
1874         (dump_flow_info): Call it.
1875         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
1876         a slim RTL dump.
1877         * basic-block.h (dump_bb_info): Declare.
1878         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
1879         option, and apply options only for dump files whose TDF_RTL,
1880         TDF_TREE, or TDF_IPA bits match.
1881         * rtl.h: Declare new functions exported from sched-vis.c.
1882         * sched-vis.c: Enable also if scheduling is not used.
1883         (print_value): Print the mode of registers if not inside scheduling.
1884         (print_insn): Make it work outside the scheduler.  Beautify the output
1885         a bit.
1886         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
1887
1888 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
1889
1890         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
1891         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
1892         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
1893         depending on the value of CONSTANT_POOL_ADDRESS_P.
1894         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
1895         SYMBOL_REF_DECL.
1896         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
1897         rather than SYMBOL_REF_DECL.
1898         (rtx_constant_pool): Remove const_rtx_sym_htab.
1899         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
1900         (init_varasm_status): Don't initialize const_rtx_sym_htab.
1901         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
1902         Remove handling of const_rtx_sym_htab.
1903         (find_pool_constant): Delete.
1904         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
1905         rather than find_pool_constant.
1906         (get_pool_constant_for_function): Delete.
1907         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
1908         find_pool_constant.
1909         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
1910         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
1911         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
1912         (SYMBOL_REF_CONSTANT): New macro.
1913         (get_pool_constant_for_function): Delete.
1914         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
1915         rather than SYMBOL_REF_DECL.
1916         (i386_pe_mark_dllimport): Likewise.
1917         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
1918         rather than SYMBOL_REF_DECL.
1919         * config/darwin.c (machopic_indirect_data_reference): Likewise.
1920         (machopic_indirect_call_target): Likewise.
1921
1922 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
1923
1924         * flow.c (delete_noop_moves): Add missing EOL to dump message.
1925
1926 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
1927
1928         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
1929
1930 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
1931
1932         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
1933
1934 2006-01-24  David Daney  <ddaney@avtrex.com>
1935
1936         PR java/25816
1937         * configure.ac (enable_tls): New enable option.
1938         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
1939         * configure: Regenerate.
1940         * doc/install.texi (--enable-tls): Document new option.
1941         (--disable-tls): Ditto.
1942
1943 2006-01-24  Richard Henderson  <rth@redehat.com>
1944
1945         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
1946         * alias.c (true_dependence): Respect it.
1947         (canon_true_dependence, write_dependence_p): Likewise.
1948         * builtins.c (get_builtin_sync_mem): Set it.
1949
1950 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
1951
1952         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
1953         efficient way.
1954
1955 2006-01-24  DJ Delorie  <dj@redhat.com>
1956
1957         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
1958         for storing constants in single-bit bitfields.
1959
1960 2006-01-25  Ben Elliston  <bje@au.ibm.com>
1961
1962         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
1963
1964 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
1965
1966         PR tree-opt/25860
1967         * tree-ssa-pre.c (phi_translate): Return NULL
1968         for AGGREGATE_TYPE's.
1969
1970 2006-01-24  Zack Weinberg  <zackw@panix.com>
1971
1972         * genautomata.c (process_state_for_insn_equiv_partition):
1973         Use xcalloc for insn_arcs_array.
1974         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
1975         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
1976
1977 2006-01-24  Richard Henderson  <rth@redhat.com>
1978
1979         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
1980         update all callers.
1981
1982 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
1983
1984         PR rtl-optimization/25890
1985         PR rtl-optimization/25905
1986         * combine.c (expand_compound_operation, expand_field_assignment):
1987         Fail if the bitfield's final position is out of bounds.
1988
1989 2006-01-24  Ian Lance Taylor  <ian@airs.com>
1990
1991         PR middle-end/25930
1992         * cgraphunit.c (cgraph_output_in_order): Don't clear
1993         cgraph_asm_nodes until after asm strings have been output.
1994
1995 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
1996
1997         * fix-header.c (read_scan_file): Add new parameter imultilib when
1998         calling register_include_chains.
1999
2000 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2001
2002         * omp-low.c: Update documentation.
2003
2004 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2005             Daniel Berlin  <dberlin@dberlin.org>
2006
2007         PR tree-opt/25315
2008         PR tree-opt/25857
2009         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2010         return from the function.
2011
2012 2006-01-22  Zack Weinberg  <zackw@panix.com>
2013
2014         * rtl.def (match_code): Add second argument.
2015         * genpreds.c (write_extract_subexp): New function.
2016         (write_match_code): Add path argument.  Use write_extract_subexp.
2017         (write_predicate_expr): Pass path to write_match_code.
2018         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2019         not perform a mode test.
2020         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2021         a subexpression does not constrain the top-level code set.
2022         * read-rtl.c (read_rtx_variadic): New function.
2023         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2024         * doc/md.texi: Document new notation.
2025         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2026         (cmpsi_operand): ... here, using new notation.
2027
2028 2006-01-22  Zack Weinberg  <zackw@panix.com>
2029
2030         * varray.c: Remove GENERATOR_FILE #ifdefs.
2031
2032 2006-01-22  Zack Weinberg  <zackw@panix.com>
2033
2034         * genautomata.c (output_reserved_units_table): Emit nothing if
2035         description->query_units_num is zero.  Remove extra blank line.
2036         (output_cpu_unit_reservation_p): Short circuit
2037         if description->query_units_num is zero.
2038
2039 2006-01-22  Zack Weinberg  <zackw@panix.com>
2040
2041         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2042         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2043         nor any of the random handful of variables that used to be necessary
2044         when this program was linked with rtlanal.o.  Prune set of forward
2045         function declarations.
2046         (struct attr_desc): Remove static_p field.
2047         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2048         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2049         (attr_string): Do not read the character one past the length of
2050         the string.
2051         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2052         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2053         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2054         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2055         (make_automaton_attrs): New.
2056         (main): Do not call into genautomata.  Call local gen_bypass
2057         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2058         Remove special case for insn_alts.
2059         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2060         varray.h (leftover from previous change).  Prune set of forward
2061         function declarations.  Remove state_alts fields from all
2062         structures.  Remove state_alts_table from struct automaton.
2063         Make everything except main static.  Do not maintain num_dfa_decls.
2064         Do not maintain state_alts fields of various structures.
2065         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2066         (add_arc): Remove state_alts argument.  All callers updated.
2067         (output_reserved_units_table): Emit #ifdef here...
2068         (output_tables): ...not here.  Don't generate state_alts tables.
2069         (expand_automata): Don't generate attributes.
2070         (write_automata): Don't generate state_alts functions.
2071         (main): New function.
2072         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
2073         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
2074         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
2075         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
2076         (BYPASS_P_FUNC_NAME, output_state_alts_table)
2077         (output_automata_list_state_alts_code, output_internal_state_alts_func)
2078         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
2079         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
2080         Delete.
2081         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
2082         * genattrtab.h: Delete file.
2083         * Makefile.in (OBJS-common): Add insn-automata.o.
2084         (insn-automata.o): New rule.
2085         (simple_generated_c): Add insn-automata.c.
2086         (build/genattrtab.o, build/genautomata.o): Update dependencies.
2087         (genprogmd): Add automata.
2088         (build/genattrtab): Needs no extra objects nor libraries.
2089         (build/genautomata): Needs build/vec.o and -lm.
2090
2091 2006-01-22  Zack Weinberg  <zackw@panix.com>
2092
2093         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
2094         (output_dfa_max_issue_rate, locked_states_num): Delete.
2095         (struct automaton): Add locked_states field.
2096         (output_dead_lock_vect): Save number of locked states in
2097         automaton->locked_states.  If it is zero, don't print anything.
2098         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
2099         (output_internal_dead_lock_func): Only test the dead_lock_vect
2100         for automata that have locked states.
2101         (output_statistics): Always print the number of locked states for
2102         each automaton.  Calculate total number of locked states here.
2103         (write_automata): Don't call output_dfa_max_issue_rate.
2104         * genattrtab.c: Define length_unit_log as a const variable.
2105         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
2106         max_insn_queue_index const.
2107         * final.c (length_unit_log): Declare const.
2108         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
2109
2110 2006-01-22  Zack Weinberg  <zackw@panix.com>
2111
2112         * genautomata.c:  Include vec.h, not varray.h.
2113         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
2114         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
2115         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
2116         VEC_* macros operating on appropriately typed vectors, or to
2117         malloced arrays when the size is known in advance.  Const-ify
2118         many char* variables and function arguments.  No functional changes.
2119         * Makefile.in (build/varray.o): Delete rule.
2120         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
2121         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
2122
2123 2006-01-22  Zack Weinberg  <zackw@panix.com>
2124
2125         * gensupport.c: Define get_insn_name and record_insn_name here.
2126         (read_md_rtx): Call record_insn_name as appropriate.
2127         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
2128         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
2129         * genpreds.c, genrecog.c: Don't define get_insn_name nor
2130         record_insn_name.
2131         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
2132         (BUILD_VARRAY): Delete.
2133         (genprognormal): Rename genprogmd.  Fold in all programs from
2134         genprognoprint; also attrtab.
2135         (build/genattrtab): Just mention genautomata.o and varray.o.
2136         Reorganize a bit, add comments to make the categories clearer.
2137
2138 2006-01-22  Zack Weinberg  <zackw@panix.com>
2139
2140         * genconditions.c (condition_table, add_condition): Delete.
2141         (write_conditions): Don't emit n_insn_conditions nor
2142         insn_elision_unavailable.  Issue the gcc version #ifdef here,
2143         inside the table, with no #else clause ...
2144         (write_header): ...not here.
2145         (write_writer): New function.
2146         (main): Don't initialize condition_table.  Use add_c_test.
2147         Call write_writer.
2148         * gensupport.c (init_md_reader_args_cb): Handle multiple input
2149         files on the command line.
2150         (maybe_eval_c_test): Don't check insn_elision_unavailable.
2151         Return -1 if there is no entry in the table, don't abort.
2152         (add_c_test, traverse_c_tests): New functions.
2153         * gensupport.h (insn_elision_unavailable, insn_conditions)
2154         (n_insn_conditions): Delete declarations.
2155         (add_c_test, traverse_c_tests): Declare.
2156         * read-rtl.c: Include gensupport.h.
2157         (read_conditions): New function.
2158         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
2159         (read_rtx_1): If we get EOF when we were looking for an initial
2160         open paren, return 0.  Call read_conditions when appropriate.
2161         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
2162         dummy-conditions.o.  Eliminate references to insn-conditions.o,
2163         or change them to build/gencondmd.o, as appropriate.  Remove
2164         insn-constants.h from $(simple_generated_h) and insn-conditions.c
2165         from $(simple_generated_c).  For all files remaining in those
2166         two lists, add insn-conditions.md to the generator command line.
2167         Give insn-constants.h/s-constants their own rules.  Add rules
2168         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
2169         (build/read-rtl.o): Depend on gensupport.h.
2170         (genprognormal): Include preds.
2171         (genprogearly): Rename genprognoprint; only difference is now that
2172         they don't link with $(BUILD_PRINT).
2173         * dummy-conditions.c: Delete.
2174
2175 2006-01-22  Zack Weinberg  <zackw@panix.com>
2176
2177         * genextract.c: Don't include insn-config.h.  Do include vec.h.
2178         Declare vectors of int, char, and locstr.
2179         (locstr): New typedef.
2180         (struct extraction): Make all array fields into bare pointers.
2181         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
2182         (insn_code_number): Delete.
2183         (accum_extract): New struct.
2184         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
2185         (gen_insn): Take insn_code_number as an argument.  Use an
2186         accum_extract structure instead of loading data directly into
2187         a struct extraction, and having to know how big it might get.
2188         (walk_rtx): Operate entirely on an accum_extract structure.
2189         (print_path): Avoid unnecessary use of printf.
2190         (print_header): New function, split out of main.  Distinguish
2191         more carefully between an unrecognizable insn and an insn that
2192         has the code number of a define_expand.
2193         (main): Pass insn_code_number to gen_insn.  Call print_header
2194         only after parsing.  Avoid unnecessary use of printf.
2195         * Makefile.in (build/vec.o): New rule.
2196         (build/genextract): Depend on build/vec.o.
2197         (build/genextract.o): Don't depend on insn-config.h.
2198
2199 2006-01-22  Zack Weinberg  <zackw@panix.com>
2200
2201         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
2202         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
2203         practical.  Eliminate per-generator-program link rules.
2204
2205 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2206
2207         PR middle-end/24437
2208         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
2209         with a call expr to ...
2210         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
2211
2212 2006-01-23  Richard Guenther  <rguenther@suse.de>
2213
2214         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
2215         before make_edge with conditional EDGE_TRUE_VALUE.
2216
2217 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
2218         Jan Hubicka  <jh@suse.cz>
2219         Richard Guenther  <rguenther@suse.de>
2220
2221         PR rtl-optimization/25654
2222         * cfgexpand.c (aggregate_contains_union_type): New function.
2223         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
2224         for structure variables that contain a union type.
2225
2226 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
2227
2228         * gengtype.c (new_structure): Return the structure.
2229         (create_option): Add an extra "next" argument.
2230         (create_field): New function.
2231         (adjust_field_rtx_def): Use create_option and create_field.
2232         Remove a now-unnecessary call to find_structure.
2233         (adjust_field_tree_def): Likewise.
2234         (note_yacc_type): Remove an unnecessary call to find_structure.
2235         * gengtype.h (new_structure): Return the structure.
2236         (create_option): Add an extra argument.
2237         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
2238         (option): Adjust calls to create_option.
2239
2240 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
2241
2242         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
2243
2244 2006-01-22  Paul Brook  <paul@codesourcery.com>
2245         Peter Barada  <peter@the-baradas.com>
2246
2247         * config/m68k/m68k.md: Add Coldfire FPU support.
2248         Define FP mode macro and associated attributes.
2249         Use it for float mode patterns.
2250         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
2251         (LIBCALL_VALUE): Use m68k_libcall_value.
2252         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
2253         (m68k_function_value): Ditto.
2254         (emit_move_sequence): Ditto.
2255         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
2256         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
2257         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
2258         (MULTILIB_EXCEPTIONS): Ditto.
2259         * config/m68k/m68k.opt: Add mcfv4e.
2260         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
2261         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
2262         (m68k_output_function_prologue): Save ColdFire FPU registers.
2263         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
2264         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
2265         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
2266         ColdFire FPU registers.
2267         (m68k_libcall_value, m68k_function_value): New functions.
2268         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
2269         (LIBCALL_VALUE): Use m68k_libcall_value.
2270         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
2271         (MASK_COLDFIRE): Add MASK_CFV4E.
2272         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
2273         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
2274         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
2275         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
2276         (GO_IF_LEGITIMATE_ADDRESS): Use it.
2277         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
2278         * doc/invoke.tex: Document -mcfv4e on m68k.
2279
2280 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
2281
2282         * doc/contribute.texi: Change CVS to SVN and update the corresponding
2283         URL.
2284
2285 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2286
2287         PR c++/16190
2288         * c-opts.c (c_common_handle_option): Don't include
2289         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
2290         * doc/invoke.texi (C++ Dialect Options): Document that
2291         -Wnon-virtual-dtor is no longer included in -Wall.
2292
2293 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
2294
2295         * gcov.c (print_version), gcov-dump.c (print_version),
2296         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
2297         dates.
2298
2299 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
2300
2301         * df-scan.c (problem_SCAN): Added NULL reset function.
2302         (df_scan_reset_blocks): Added code to call reset block function
2303         (df_bb_refs_delete) Fixed comment.
2304         (df_insn_refs_delete): Made tolerant of deleting non existent info
2305         for dataflow problems that need to be reset.
2306         * df-core.c (df_set_blocks): Ditto.
2307         * df.h (struct df_problem): Added reset_fun.
2308         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
2309         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
2310         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
2311         functions to clear out all references to def-use or use-def chains.
2312
2313 2006-01-21  Ben Elliston  <bje@au.ibm.com>
2314
2315         * varasm.c (assemble_real): Initialise data array.
2316
2317 2006-01-20  Paul Brook  <paul@codesourcery.com>
2318
2319         Merge from csl-arm-branch.
2320         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
2321         * config/arm/arm.md (movdi): Force operands[1] to a register
2322         if we have a non-register source.
2323         (*arm_movdi, *movdf_soft_insn): Require that one of the
2324         operands be a register.
2325         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
2326         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
2327
2328 2006-01-20  DJ Delorie  <dj@redhat.com>
2329
2330         * varasm.c (initialize_constant_valid_p): Allow pointers
2331         initialized from integer constants of lesser precision.
2332         (output_constant): Allow non-int-sized pointer modes to be
2333         initialized from integer constants.
2334
2335 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
2336
2337         PR libstdc++/25524
2338         * cppdefault.h (struct default_include): Add multilib flag.
2339         * cppdefault.c (cpp_include_defaults): Set it.
2340         * c.opt (-imultilib): New option.
2341         * c-opts.c (imultilib): New.
2342         (c_common_handle_option): Handle -imultilib.
2343         (c_common_post_options): Likewise.
2344         * c-incpath.c (add_standard_paths, register_include_chains):
2345         Likewise.
2346         * c-incpath.h (register_include_chains): Add extra parameter.
2347         * gcc.c (do_spec_1): Generate -imultilib option.
2348         (The Specs Language): Update %I description.
2349         (process_command): Update copyright notice.
2350         * doc/cppopts.texi (-imultilib): Document.
2351         * doc/invoke.texi (-imultilib): Include in option summary.
2352         (%I): Update specs documentation.
2353
2354 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
2355
2356         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
2357
2358 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
2359
2360         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
2361         label numbers.
2362
2363 2006-01-20  Richard Guenther  <rguenther@suse.de>
2364         Steven Bosscher <stevenb.gcc@gmail.com>
2365
2366         PR rtl-optimization/24626
2367         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
2368         EDGE_TRUE_VALUE if in RTL mode.
2369
2370         Revert
2371         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
2372         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
2373
2374 2006-01-20  Dirk Mueller  <dmueller@suse.com>
2375
2376         PR c++/5520
2377         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
2378         instead of a special NOP marker.
2379         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
2380         NOP marker handling.
2381         * c-common.h (empty_body_warning): Add forward declaration.
2382         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
2383         Now uses IS_EMPTY_STMT() instead of special NOP markers.
2384
2385 2006-01-20  Paul Brook  <paul@codesourcery.com>
2386
2387         * Makefile.in (lang_checks): Keep going if mkdir fails.
2388
2389 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
2390
2391         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
2392         be able to clean out basic block when not necessary.
2393         (df_scan_free): Fixed to properly delete information if df is
2394         unused before calling df_finish.
2395         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
2396         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
2397         or comment typos.
2398         (df_bb_refs_delete): New function.
2399         (df_refs_delete): Moved per block code to df_bb_refs_delete.
2400         * df-core.c (df_set_blocks): Added code to properly clean out
2401         unused blocks if they are not part of the blocks to consider.
2402         Added additional null check.
2403         (df_compact_blocks): Added basic block parameter to free_bb_fun to
2404         be able to clean out basic block when not necessary
2405         * df.h (df_free_bb_function): Ditto.
2406         (df_bb_refs_delete): New function.
2407         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
2408         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
2409         basic block parameter to be able to clean out basic block when not
2410         necessary.
2411         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
2412         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
2413         Fixed to properly delete information if df is unused before
2414         calling df_finish.
2415
2416 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
2417
2418         PR rtl-optimization/25799
2419         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
2420         Corrected confluence operator to remove bits from op2 before oring
2421         with op1 rather than removing bits from op1.
2422         (df_ru_transfer_function): Corrected test on wrong bitmap which
2423         caused infinite loop.  Both of these problems were introduced in
2424         the dataflow rewrite.
2425
2426 2006-01-19  DJ Delorie  <dj@redhat.com>
2427
2428         * reload1.c (find_reload_regs): Note the details of reload
2429         failures in the dump file.
2430         (spill_failure): Likewise.
2431
2432 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
2433
2434         * loop-iv.c: Include df.h and hashtab.h.
2435         (enum iv_grd_result): New enum.
2436         (DF_REF_IV, DF_REF_IV_SET): New macros.
2437         (struct biv_entry): New.
2438         (df, bivs): New global variables.
2439         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
2440         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
2441         Removed.
2442         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
2443         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
2444         analyzed_for_bivness_p, record_biv): New functions.
2445         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
2446         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
2447         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
2448         UD chains.
2449         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
2450         analysed.
2451         (iv_number_of_iterations): Use new interface to iv analysis.
2452         * loop-unroll.c: Do not include varray.h.
2453         (analyze_iv_to_split_insn): Use new interface to iv
2454         analysis.
2455         * loop-unswitch.c (may_unswitch_on): Ditto.
2456         * df.c (df_bitmaps_free): Only work for bbs for that structures are
2457         allocated.
2458         (df_bb_modify): Realloc tables to the new index.
2459         (df_find_use): New function.
2460         * df.h (df_find_use): Declare.
2461         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
2462         outmode.
2463         * cfgloop.h (struct rtx_iv): Remove analysed field.
2464         (iv_get_reaching_def): Removed.
2465         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
2466         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
2467         (loop-iv.o): Add df.h and hashtab.h dependency.
2468         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
2469
2470 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
2471
2472         PR target/25668
2473         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
2474         Double TFmode.
2475         (__floatundisf, __floatundidf): Likewise.
2476         * libgcc2.h (IS_IBM_EXTENDED): Define.
2477
2478 2006-01-19  DJ Delorie  <dj@redhat.com>
2479
2480         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
2481
2482 2006-01-19  Paul Brook  <paul@codesourcery.com>
2483
2484         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
2485         as nothrow when unwinding tables are disabled.
2486
2487 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2488
2489         PR testsuite/25171
2490         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
2491         of bit-field" when in system header.
2492
2493 2006-01-19  DJ Delorie  <dj@redhat.com>
2494
2495         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
2496         the 16 bit shift limit of the m16c.
2497
2498 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
2499
2500         PR target/22099
2501         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
2502         * config/i386/i386.c (output_set_got): Output the label if we have one
2503         for the TARGET_DEEP_BRANCH_PREDICTION case.
2504
2505 2006-01-19  Jan Hubicka  <jh@suse.cz>
2506             H.J. Lu  <hongjiu.lu@intel.com>
2507             Evandro Menezes <evandro.menezes@amd.com>
2508
2509         * invoke.texi (generic): Document
2510         (i686) Update.
2511         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
2512         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
2513         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
2514         (x86_use_incdec, x86_pad_returns): New variables
2515         (TARGET_CPU_DEFAULT_generic): New constant
2516         (TARGET_CPU_DEFAULT_NAMES): Add generic.
2517         (enum processor_type): Add generic32 and generic64.
2518         * i386.md (cpu attribute): Add generic32/generic64
2519         (movhi splitter): Behave sanely when both partial_reg_dependency and
2520         partial_reg_stall are set.
2521         (K8 splitters): Enable for generic as well.
2522         * predicates.md (incdec_operand): Use TARGET_INCDEC
2523         (aligned_operand): Avoid memory mismatch stalls.
2524         * athlon.md: Enable for generic64, new patterns for 128bit moves.
2525         * ppro.md: Enable for generic32
2526         * i386.c (generic64_cost, generic32_cost): New.
2527         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
2528         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
2529         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
2530         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
2531         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
2532         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
2533         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2534         x86_accumulate_outgoing_args, x86_prologue_using_move,
2535         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
2536         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
2537         Enable for generic.
2538         (x86_use_incdec, x86_pad_returns): New.
2539         (override_options): Add generic32 and generic64, translate "generic"
2540         to generic32/generic64 and "i686" to "generic32", refuse
2541         "generic32"/"generic64" as arch target.
2542         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
2543         (ix86_reorg): Honor PAD_RETURNS.
2544
2545 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
2546
2547         * tree-pretty-print.c (dump_generic_node): Handle
2548         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
2549         * cgraph.c (cgraph_expand_queue): Rename from
2550         cgraph_analyze_queue.  Update all users.
2551         * cgraphunit.c (cgraph_assemble_pending_functions): Process
2552         cgraph_expand_queue.
2553         (cgraph_expand_all_functions): Likewise.
2554         (cgraph_finalize_pending_functions): Remove.  Update callers.
2555
2556         * tree.h (OMP_DIRECTIVE_P): Define.
2557         (OMP_PARALLEL_FN): Define.
2558         (OMP_PARALLEL_DATA_ARG): Define.
2559         (OMP_SECTIONS_SECTIONS): Define.
2560         * tree-pass.h (pass_expand_omp): Declare.
2561         * omp-low.c (struct omp_region): Declare.
2562         (struct omp_context): Remove fields 'parallel_type',
2563         'parallel_start_ix' and 'parallel_start_additional_args'.
2564         Update all users.
2565         (struct omp_for_data): Rename from struct expand_omp_for_data.
2566         (omp_regions): New static variable.
2567         (root_omp_region): New static variable.
2568         (find_omp_clause): Make static.
2569         (is_in_combined_parallel_ctx): Remove.
2570         (is_combined_parallel): New.
2571         (extract_omp_for_data): Move earlier in the file.
2572         (workshare_safe_to_combine_p): New.
2573         (get_ws_args_for): New.
2574         (determine_parallel_type): Move earlier in the file.
2575         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
2576         child function.
2577         (omp_copy_decl): Likewise.
2578         (create_omp_child_function): Likewise.
2579         (lookup_omp_region): New.
2580         (dump_omp_region): New.
2581         (debug_omp_region): New.
2582         (debug_all_omp_regions): New.
2583         (new_omp_region): New.
2584         (scan_omp_parallel): If parallel_nesting_level > 1, the
2585         directive is nested within another parallel directive.
2586         Set OMP_PARALLEL_FN.
2587         (scan_omp_for): Do not try to handle combined parallel+for
2588         cases.
2589         Remove FIXME comment.
2590         (scan_omp_nested): Remove.
2591         (scan_omp_1): Do not call scan_omp_nested when
2592         parallel_nesting_level is > 1.
2593         Do not change the DECL_CONTEXT of local variables found.
2594         (lookup_decl_in_outer_ctx): New.
2595         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
2596         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
2597         (lower_reduction_clauses): Rename from expand_reduction_clauses.
2598         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
2599         If CTX is nested, lookup VAR in the outer context when
2600         building copy assignment.
2601         (lower_send_clauses): Rename from expand_send_clauses.
2602         If CTX is nested, lookup VAR in the outer context when
2603         building copy assignments.
2604         (lower_send_shared_vars): Rename from expand_send_shared_vars.
2605         If CTX is nested, lookup VAR in the outer context when
2606         building copy assignments.
2607         (expand_parallel_call): Rename from build_parallel_call.
2608         Handle combined parallel+workshare cases.
2609         Re-implement to emit code into the CFG.
2610         (list2chain): New.
2611         (expand_omp_parallel): Re-implement to emit code into the CFG.
2612         Call move_sese_region_to_fn to outline the sub-graph
2613         containing the parallel region.
2614         (expand_omp_for_1): Remove.
2615         (expand_omp_for_generic): Re-implement to emit code into the
2616         CFG.
2617         (expand_omp_for_static_nochunk): Likewise.
2618         (expand_omp_for_static_chunk): Likewise.
2619         (expand_omp_for): Likewise.
2620         (expand_omp_sections): Likewise.
2621         (remove_exit_barriers): New.
2622         (expand_omp_synch): New.
2623         (expand_omp): New.
2624         (build_omp_regions_1): New.
2625         (build_omp_regions): New.
2626         (execute_expand_omp): New.
2627         (gate_expand_omp): New.
2628         (pass_expand_omp): Define.
2629         (lower_omp_sections): Rename from expand_omp_sections.
2630         Set OMP_SECTIONS_SECTIONS.
2631         (lower_omp_single_simple): Rename from expand_omp_single_simple.
2632         (lower_omp_single_copy): Rename from expand_omp_single_copy.
2633         (lower_omp_single): Rename from expand_omp_simple.
2634         (lower_omp_master): Rename from expand_omp_master.
2635         (lower_omp_ordered): Rename from expand_omp_ordered.
2636         (lower_omp_critical): Rename from expand_omp_critical.
2637         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
2638         (lower_omp_for): Re-implement.
2639         (lower_omp_parallel): Re-implement.
2640         (lower_regimplify): Rename from expand_regimplify.
2641         (lower_omp_1): Rename from expand_omp_1.
2642         If there are syntax errors in the program, replace every
2643         OpenMP directive with NOP.
2644         Call lower_omp_* instead of expand_omp_*.
2645         (lower_omp): Rename from expand_omp.
2646
2647         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
2648         * tree-gimple.h (enum omp_parallel_type): Remove.
2649         (gimple_boolify): Declare extern.
2650         (find_omp_clause, determine_parallel_type): Remove.
2651
2652         * gimple-low.c (lower_omp_directive): New.
2653         (lower_stmt): Call it.
2654         (record_vars_into): Move from ...
2655         (record_vars): ... here.
2656         Call record_vars_into with current_function_decl.
2657
2658         * gimplify.c (struct gimplify_ctx): Remove fields
2659         combined_pre_p and combined_ctxp.  Update users.
2660         (get_formal_tmp_var): Add documentation.
2661         (gimple_boolify): Make extern.
2662         (gimplify_expr_in_ctx): Remove.  Update callers.
2663         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
2664         will always be a BIND_EXPR.
2665         (gimplify_expr): Handle OMP_RETURN_EXPR.
2666         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
2667         (OMP_PARALLEL): Add 3 operands.
2668         (OMP_SECTIONS): Add 1 operand.
2669         (OMP_RETURN_EXPR): Define.
2670
2671         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
2672         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
2673         * tree-iterator.c (alloc_stmt_list): Assert that we are not
2674         creating a circular free list.
2675         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
2676
2677         * tree-flow.h (move_sese_region_to_fn): Declare.
2678         (record_vars_into): Declare.
2679         * tree-cfg.c (make_omp_sections_edges): New.
2680         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
2681         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
2682         OMP_SECTIONS and OMP_SECTION.
2683         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
2684         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
2685         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
2686         (gather_blocks_in_sese_region): New.
2687         (struct move_stmt_d): Declare.
2688         (move_stmt_r): New.
2689         (move_block_to_fn): New.
2690         (move_sese_region_to_fn): New.
2691
2692         * passes.c (init_optimization_passes): Schedule
2693         pass_expand_omp after pass_init_datastructures.
2694
2695         * tree-ssa-operands.c (get_expr_operands): Handle
2696         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
2697         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
2698
2699 2006-01-19  Jeff Law  <law@redhat.com>
2700
2701         * tree-vrp.c (extract_range_from_assert): Refine the result range
2702         if the variable referenced by the ASSERT_EXPR has a range and
2703         either the tentative result range or the previous range is a
2704         VR_ANTI_RANGE.
2705
2706 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
2707
2708         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
2709
2710 2006-01-19  Jan Hubicka  <jh@suse.cz>
2711
2712         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
2713
2714 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
2715
2716         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
2717         (expand_compound_operation, expand_field_assignment): Fail if the
2718         bit lengths of an extract operation are out of range.
2719         (make_extraction): Compute wanted_inner_mode based on the position
2720         and length of the extraction.  Make it extraction_mode for non-constant
2721         positions, and do not modify offset in that case.  When generating a
2722         new MEM, use a mode that can hold the extraction while keeping correct
2723         alignment.  Remove code that supported MEMs wrapped by USEs.
2724         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
2725
2726 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
2727
2728         * config/s390/s390.md ("Y", "y"): New mode attribute.
2729         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
2730         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
2731         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
2732         "*addsi3_imm_cc", "*addsi3_carry1_cc",
2733         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
2734         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
2735         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
2736         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
2737         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
2738         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
2739         "addsi3", "subsi3"): Insn patterns removed.
2740         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
2741         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
2742         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
2743         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
2744         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
2745         "*sub<mode>3_cconly2"): New insn patterns.
2746         ("addsi3", "subsi3"): New expanders.
2747
2748 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
2749
2750         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
2751         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
2752         existing STMT_VINFO_VECTYPE if available.
2753         (vect_mark_relevant): Add special handling for stmts that are
2754         marked as STMT_VINFO_IN_PATTERN_P.
2755         (vect_analyze_loop): Call vect_pattern_recog.
2756         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
2757         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
2758         stmt_info.
2759         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
2760         (vect_recog_func_ptr): New function-pointer type.
2761         * tree-vect-patterns.c: New file.
2762         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
2763         (vect_recog_dot_prod_pattern, vect_pattern_recog):
2764         (vect_pattern_recog_1): New functions.
2765         (vect_pattern_recog_funcs): New array of function pointers.
2766
2767         * tree-vectorizer.h (ternary_op): New enum value.
2768         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
2769         declaration. Revised documentation. Removed redundant dump prints.
2770         Removed redundant argument. Added support for reduction patterns.
2771         (vectorizable_reduction): Added support for reduction patterns.
2772         (vect_transform_stmt): Added support for patterns.
2773
2774         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
2775         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
2776         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
2777         (expand_widen_pattern_expr): New function.
2778         (init_optabs): Initialize new optabs udot_prod_optab,
2779         sdot_prod_optab.
2780         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
2781         (sdot_prod_optab, udot_prod_optab): Define new optabs.
2782         (expand_widen_pattern_expr): New function declaration.
2783         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
2784         tree-codes.
2785         * tree-inline.c (estimate_num_insns_1): Added cases for new
2786         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
2787         * tree-pretty-print.c (dump_generic_node): Likewise.
2788         (op_prio): Likewise.
2789         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
2790         * tree-ssa-operands.c (get_expr_operands): Added case for
2791         DOT_PROD_EXPR.
2792         * tree-vect-patterns.c (widened_name_p): New function.
2793         (vect_recog_dot_prod_pattern): Added function implementation.
2794         * tree-vect-transform.c (get_initial_def_for_reduction): Added
2795         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
2796         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
2797         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
2798
2799         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
2800         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
2801         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
2802         (init_optabs): Initialize new optabs widen_ssum_optab,
2803         widen_usum_optab.
2804         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
2805         (widen_ssum_optab, widen_usum_optab): Define new optabs.
2806         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
2807         use instead of type of def.
2808         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
2809         function implementation.
2810         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
2811         widen_ssumv8hi): New.
2812
2813         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
2814         patterns.
2815
2816 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
2817
2818         PR c/25805
2819         * c-decl.c (add_flexible_array_elts_to_size): New function.
2820         (finish_decl): Use it.
2821
2822 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
2823
2824         * diagnostic.h: Include options.h.
2825         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
2826         dependancies for diagnostic.h.
2827         * Makefile.in (DIAGNOSTIC_H): Add options.h.
2828
2829 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
2830
2831         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
2832         (ssa_ro_call_cache_valid): Ditto.
2833         * tree-ssa-alias.c (sort_tags_by_id): New function.
2834         (init_transitive_clobber_worklist): Ditto.
2835         (add_to_worklist): Ditto.
2836         (mark_aliases_call_clobbered): Ditto.
2837         (compute_tag_properties): Ditto.
2838         (set_initial_properties): Ditto.
2839         (compute_call_clobbered): Ditto.
2840         (compute_may_aliases):  Call compute_call_clobbered and grouping.
2841         (compute_flow_sensitive_aliasing): Remove clobbering related code.
2842         (compute_flow_insensitive_aliasing): Grouping now happens in our
2843         caller.
2844         (setup_pointers_and_addressables): Remove clobbering related code.
2845         (add_may_alias): Ditto.
2846         (replace_may_alias): Ditto.
2847         (get_nmt_for): Ditto.
2848         (create_global_var):
2849         (is_escape_site): Return an escape_type enumeration.
2850         * tree-flow-inline.h (is_call_clobbered):  Global var does not
2851         imply call clobbered.
2852         (mark_call_clobbered): Take a reason for marking this. Remove
2853         marking of globalness, and cache invalidation.
2854         (clear_call_clobbered): Remove cache invalidation code.
2855         * tree-dfa.c (dump_variable): If details is on, dump the reason
2856         for escaping.
2857         * tree-outof-ssa.c (create_temp): Copy escape mask from original
2858         variable.
2859         * tree-flow.h (struct ptr_info_def): Add escape mask member.
2860         (struct var_ann_d): Ditto.
2861         (enum escape_type): New.
2862         (mark_call_clobbered): Adjust prototype.
2863         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
2864         are never call clobbered.
2865         Record reasons for escaping.
2866         * tree-ssa-structalias.h (is_escape_site): Update prototype.
2867         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
2868         (ssa_ro_call_cache_valid): Ditto.
2869         (clobbered_v_may_defs): Ditto.
2870         (clobbered_vuses): Ditto.
2871         (ro_call_vuses): Ditto.
2872         (clobber_stats): New.
2873         (init_ssa_operands): Zero out clobber stats.
2874         (fini_ssa_operands): Print out clobber stats.
2875         (get_call_expr_operands): Pass callee fndecl to
2876         add_call_read_ops).
2877         (add_call_clobber_ops): Remove use of cache.
2878         Add use of PURE_CONST information.
2879         (add_call_read_ops): Remove use of cache.
2880         Add use of static not_read information.
2881
2882 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
2883
2884         Introduce TLS descriptors for i386 and x86_64.
2885         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
2886         (TARGET_ANY_GNU_TLS): New macro.
2887         (enum tls_dialect): Added TLS_DIALECT_GNU2.
2888         (struct machine_function): Add tls_descriptor_call_expanded_p.
2889         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
2890         (ix86_current_function_calls_tls_descriptor): Likewise.
2891         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
2892         (override_options): Introduce gnu2 tls dialect.
2893         (ix86_frame_pointer_required): Functions containing TLSCALLs are
2894         not leaves.
2895         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
2896         Likewise.
2897         (legitimize_tls_address): Adjust logic for GNU2 TLS.
2898         (ix86_init_machine_status): Initialize new field.
2899         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
2900         (ix86_tls_module_base): New.
2901         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
2902         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
2903         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
2904         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
2905         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
2906         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
2907         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
2908         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
2909         * config/i386/predicates.md (tls_modbase_operand): New.
2910         (tp_or_register_operand): New.
2911
2912 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
2913
2914         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
2915         (look_for_address_of): Ditto.
2916         (ipa_init): Walk the function decls.
2917         (static_execute): Don't set readonly on FUNCTION_DECL's.
2918
2919 2006-01-18  Roger Sayle  <roger@eyesopen.com>
2920
2921         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
2922         for shifts where the source and destination registers are different.
2923
2924 2006-01-18  Paul Brook  <paul@codesourcery.com>
2925
2926         Merge from csl-arm-branch.
2927         2005-03-14  Julian Brown  <julian@codesourcery.com>
2928         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
2929         (aeabi_llsl): Likewise.
2930         (ashrdi3): Likewise.
2931         (aeabi_lasr): Likewise.
2932         (lshrdi3): Likewise.
2933         (aeabi_llsr): Likewise.
2934         2005-03-10  Julian Brown  <julian@codesourcery.com>
2935         * config.gcc: Disable shared libgcc for SymbianOS.
2936         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
2937
2938 2006-01-18  DJ Delorie  <dj@redhat.com>
2939
2940         * c-pragma.c (handle_pragma_diagnostic): New.
2941         (init_pragma): Register it.
2942         * doc/extend.texi: Document it.
2943
2944         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
2945         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
2946         (diagnostic_context): Add classify_diagnostic[].
2947         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
2948         as errors if they're overridden to DK_WARNING.
2949         (diagnostic_initialize): Initialize classify_diagnostic[].
2950         (diagnostic_set_kind_override): New.
2951         (diagnostic_report_diagnostic): Check for kind changes.
2952         * opts.c (common_handle_option): Take lang_mask.  Update callers.
2953         Handle OPT_Werror_.
2954         * common.opt (Werror=): New.
2955         * doc/invoke.texi: Document -Werror=*
2956
2957 2006-01-18  Jeff Law  <law@redhat.com>
2958
2959         * tree-vrp.c (test_for_singularity): Correct test for new
2960         min limit.  Use operand_equal_p rather than pointer equality
2961         for testing if new min/max values are equal.
2962
2963         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
2964         using range information until after propagation and folding.
2965
2966 2006-01-18  Richard Henderson  <rth@redhat.com>
2967             Aldy Hernandez  <aldyh@redhat.com>
2968             Jakub Jelinek  <jakub@redhat.com>
2969             Diego Novillo  <dnovillo@redhat.com>
2970
2971         * omp-low.c: New file.
2972         * c-omp.c: New file.
2973
2974 2006-01-18  Richard Henderson  <rth@redhat.com>
2975             Jakub Jelinek  <jakub@redhat.com>
2976             Diego Novillo  <dnovillo@redhat.com>
2977
2978         * doc/invoke.texi: Document -fopenmp.
2979         * tree-dump.h (debug_function): Declare.
2980         * hooks.c (hook_bool_tree_bool_false): New function.
2981         (hook_tree_tree_null): Remove.
2982         (hook_tree_tree_tree_null): New.
2983         * hooks.h: Update to match.
2984         * tree-pretty-print.c (debug_tree_chain): New.
2985         (print_generic_expr): Handle TDF_CHAIN.
2986         (dump_generic_node): Handle BLOCK.
2987         Do not abort with incomplete SWITCH_EXPRs.
2988         Do not dump body of an OpenMP directive if TDF_SLIM is given.
2989         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
2990         print space after directive name.
2991         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
2992         Handle OMP_MASTER and OMP_ORDERED.
2993         Handle printing of OMP_BODY just in one place, goto
2994         dump_omp_body in the rest of OMP_* nodes that have
2995         OMP_BODY.
2996         Don't handle clause nodes here.  Update omp statements to
2997         use dump_omp_clauses.
2998         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
2999         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3000         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3001         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3002         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3003         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3004         Adjust output for GOMP_PARALLEL.
3005         (dump_omp_clauses): New.
3006         (print_declaration): Dump DECL_VALUE_EXPR.
3007         (op_symbol_1): Split out of op_symbol.
3008         (dumping_stmts): Remove.  Update all users.
3009         * cgraph.c (cgraph_analyze_queue): New.
3010         (cgraph_add_new_function): New.
3011         * cgraph.h (cgraph_analyze_queue): Declare.
3012         (cgraph_add_new_function): Declare.
3013         (cgraph_lower_function): Remove.
3014         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3015         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3016         and TYPE_P nodes in its default clause.
3017         (empty_body_p): New.
3018         (tree_range_check_failed): New.
3019         (build5_stat): New.
3020         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3021         OMP_CLAUSE_REDUCTION_MERGE,
3022         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3023         OMP_CLAUSE_PRIVATE_DEBUG,
3024         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3025         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3026         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3027         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3028         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3029         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3030         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3031         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3032         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3033         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3034         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3035         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3036         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3037         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3038         (TREE_RANGE_CHECK): New.
3039         (empty_body_p): Declare.
3040         (enum omp_clause_default_kind): New.
3041         (build_string_literal): Declare.
3042         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3043         (build5_stat, build5): Declare.
3044         * tree-pass.h (TDF_CHAIN): Define.
3045         * tree-pass.h (PROP_gimple_lomp): Define.
3046         (pass_lower_omp): Declare.
3047         * diagnostic.h (debug_tree_chain): Declare.
3048         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3049         mode_for_size.
3050         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3051         * builtins.c (build_string_literal): Make extern.
3052         * gcc.c (include_spec_function): New.
3053         (static_spec_functions): Add it.
3054         (main): Move load of libgomp.spec ...
3055         (LINK_COMMAND_SPEC): ... here.
3056         (link_gomp_spec): New.
3057         (static_specs): Include it.
3058         (LINK_COMMAND_SPEC): Add link_gomp.
3059         (GOMP_SELF_SPECS): New.
3060         (driver_self_specs): Include it.
3061         (switch_matches): Don't mark inline.
3062         (main): Load libgomp.spec.
3063         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
3064         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
3065         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
3066         * tree-gimple.h (enum omp_parallel): Declare.
3067         (determine_parallel_type): Declare.
3068         (omp_firstprivatize_variable): Declare.
3069         (omp_reduction_init): Declare.
3070         (diagnose_omp_structured_block_errors): Declare.
3071         (struct walk_stmt_info): Add want_return_expr.
3072         (struct walk_stmt_info): Add want_bind_expr, want_locations.
3073         (find_omp_clause): Declare.
3074         (insert_field_into_struct): Declare.
3075         (struct walk_stmt_info): Move from tree-nested.c
3076         (walk_stmts): Declare.
3077         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
3078         to 200505.
3079         * cgraphunit.c (cgraph_lower_function): Make static.
3080         (cgraph_finalize_pending_functions): New.
3081         (cgraph_finalize_function): Call it.
3082         (cgraph_finalize_compilation_unit): Likewise.
3083         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
3084         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
3085         (BT_FN_UINT_UINT): New.
3086         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
3087         DEF_FUNCTION_TYPE_VAR_4): Document.
3088         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
3089         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
3090         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
3091         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
3092         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
3093         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
3094         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
3095         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
3096         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
3097         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
3098         into separate files.
3099         (DEF_GOMP_BUILTIN): New.
3100         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
3101         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
3102         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
3103         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
3104         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
3105         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
3106         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
3107         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
3108         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
3109         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
3110         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
3111         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
3112         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
3113         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
3114         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
3115         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
3116         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
3117         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
3118         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
3119         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
3120         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
3121         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
3122         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
3123         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
3124         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
3125         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
3126         * sync-builtins.def: New file, moved from builtins.def.
3127         * omp-builtins.def: New file, moved from builtins.def.
3128         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
3129         * gimple-low.c (lower_function_body): Clear data.
3130         (lower_stmt): Do not handle COMPOUND_EXPR.
3131         Remove call to print_node_brief.
3132         * c-tree.h (c_finish_omp_clauses): New prototype.
3133         (C_DECL_THREADPRIVATE_P): Define.
3134         (lookup_name_no_remap, c_omp_remap_private): Remove
3135         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
3136         (check_for_loop_decls): Update decl.
3137         (lookup_name_no_remap, c_omp_remap_private): Declare.
3138         (build_indirect_ref, build_modify_expr, pushdecl,
3139         pushdecl_top_level): Move to c-common.h.
3140         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
3141         before the switch, but just in the 2 places that need it.
3142         * c-decl.c (diagnose_mismatched_decls): Do not check for
3143         mismatched thread-local attributes when OLDDECL is marked
3144         threadprivate and NEWDECL has no thread-local attributes.
3145         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
3146         (c_gimple_diagnostics_recursively): Rename from
3147         c_warn_unused_result_recursively.  Invoke
3148         diagnose_omp_structured_block_errors.
3149         (check_for_loop_decls): Return a singular decl found.
3150         * langhooks.c (lhd_omp_predetermined_sharing): Return
3151         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
3152         (lhd_omp_firstprivatize_type_sizes): New.
3153         (lhd_omp_assignment): New.
3154         (lhd_omp_predetermined_sharing): New.
3155         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
3156         (struct lang_hooks_for_types): Add
3157         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
3158         omp_predetermined_sharing, omp_disregard_value_expr,
3159         omp_private_debug_clause, omp_clause_default_ctor,
3160         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
3161         (c_finish_omp_clauses): New.
3162         (c_finish_bc_stmt): Diagnose break within omp for.
3163         (c_begin_omp_parallel, c_finish_omp_parallel): New.
3164         (build_unary_op): Return error_mark after reporting
3165         a readonly_error.
3166         (build_modify_expr): Likewise.
3167         * gimplify.c: Include optabs.h and pointer-set.h.
3168         (enum gimplify_omp_var_data): Declare.
3169         (struct gimplify_omp_ctx): Declare.
3170         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
3171         and combined_ctxp.
3172         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
3173         (push_gimplify_context, pop_gimplify_context): Allow nesting.
3174         (splay_tree_compare_decl_uid): New.
3175         (new_omp_context): New.
3176         (delete_omp_context): New.
3177         (gimple_add_tmp_var): Call omp_add_variable.
3178         (gimplify_bind_expr): Likewise.
3179         (gimplify_var_or_parm_decl): If omp_notice_variable returned
3180         true, disregard DECL_VALUE_EXPR on the decl if any.
3181         (gimplify_expr_in_ctx): New.
3182         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
3183         omp_add_variable, omp_notice_variable, omp_is_private
3184         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
3185         gimplify_adjust_omp_clauses, gimplify_omp_parallel
3186         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
3187         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
3188         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
3189         gimplify_omp_atomic): New.
3190         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
3191         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
3192         OMP_CRITICAL and OMP_ATOMIC.
3193         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
3194         * c-pragma.h (enum pragma_kind): Add
3195         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
3196         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
3197         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
3198         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
3199         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
3200         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
3201         PRAGMA_OMP_THREADPRIVATE.
3202         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
3203         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
3204         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
3205         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
3206         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
3207         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
3208         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
3209         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
3210         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
3211         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
3212         * tree-ssa-dce.c (find_control_dependence): Do not assume that
3213         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
3214         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
3215         OpenMP directives.
3216         (struct nesting_info): Add field_map,
3217         suppress_expansion, debug_var_chain.
3218         (create_nesting_tree): Initialize them.
3219         (lookup_field_for_decl): Use field_map.
3220         (get_nonlocal_debug_decl, get_local_debug_decl): New.
3221         (convert_local_omp_clauses): New.
3222         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
3223         (walk_body): Split out of walk_function.
3224         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
3225         (convert_nonlocal_reference): Handle omp statements.
3226         (convert_local_reference): Likewise.
3227         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
3228         (unnest_nesting_tree): New.
3229         (lower_nested_functions): Call it.
3230         (insert_field_into_struct): Make extern.
3231         (struct walk_stmt_info): Move to tree-gimple.h.
3232         (walk_stmts): Make extern.
3233         * omp-builtins.def: New file.
3234         * tree-iterator.c (expr_only): Clarify comment.
3235         * c-common.h (pushdecl_top_level, pushdecl,
3236         build_modify_expr, build_indirect_ref,
3237         c_finish_omp_master, c_finish_omp_critical,
3238         c_finish_omp_ordered, c_finish_omp_barrier,
3239         c_finish_omp_atomic, c_finish_omp_flush,
3240         c_finish_omp_for, c_split_parallel_clauses,
3241         omp_clause_default_kind, c_omp_sharing_predetermined,
3242         c_omp_remap_decl): Declare.
3243         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
3244         (OBJS-common): Add omp-low.o.
3245         (c-omp.o, omp-low.o): Add.
3246         (gimplify.o): Add dependency on $(OPTABS_H).
3247         (GTFILES): Add omp-low.c.
3248         (gt-stringpool.h): Add.
3249         * tree-cfg.c (set_bb_for_stmt): Do not update the
3250         block-to-labels map if we are currently expanding to RTL.
3251         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
3252         checks.
3253         Handle IDENTIFIER_NODE.
3254         (tree_verify_flow_info): Do not ICE when emitting error
3255         messages about invalid labels.
3256         (dump_function_to_file): Reset CFUN before emitting the body
3257         of the function.
3258         (debug_function): New.
3259         * passes.c (init_optimization_passes): Schedule
3260         pass_lower_omp.
3261         * langhooks-def.h (lhd_omp_predetermined_sharing,
3262         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
3263         Declare.
3264         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
3265         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
3266         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
3267         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
3268         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
3269         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
3270         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
3271         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
3272         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
3273         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
3274         (LANG_HOOK_DECLS): Use them.
3275
3276 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
3277             Richard Henderson  <rth@redhat.com>
3278             Jakub Jelinek  <jakub@redhat.com>
3279             Diego Novillo  <dnovillo@redhat.com>
3280
3281         * c-parser.c (pragma_omp_clause): Define.
3282         (c_parser_declaration_or_fndef): Document OpenMP syntax.
3283         (c_parser_compound_statement): Likewise.
3284         (c_parser_statement): Likewise.
3285         (c_parser_pragma): Handle omp pragmas.
3286         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
3287         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
3288         (c_parser_omp_clause_name, check_no_duplicate_clause,
3289         c_parser_omp_variable_list,
3290         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
3291         c_parser_omp_clause_copyprivate,
3292         c_parser_omp_clause_default,
3293         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
3294         c_parser_omp_clause_lastprivate,
3295         c_parser_omp_clause_nowait,
3296         c_parser_omp_clause_num_threads,
3297         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
3298         c_parser_omp_clause_reduction,
3299         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
3300         c_parser_omp_all_clauses, c_parser_omp_structured_block,
3301         c_parser_omp_atomic, c_parser_omp_barrier,
3302         c_parser_omp_critical, c_parser_omp_flush,
3303         c_parser_omp_for_loop, c_parser_omp_for,
3304         c_parser_omp_master, c_parser_omp_ordered,
3305         c_parser_omp_sections_scope, c_parser_omp_sections,
3306         c_parser_omp_parallel, c_parser_omp_single,
3307         c_parser_omp_construct, c_parser_omp_threadprivate): New.
3308         * c-pragma.c (init_pragma): Do omp pragma registration here.
3309         * c.opt (fopenmp): New flag.
3310
3311 2006-01-18  Eric Christopher  <echristo@apple.com>
3312
3313         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
3314         * config/darwin.h (GOMP_SELF_SPECS): Define.
3315
3316 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
3317
3318         * rtl.h: Remove the prototype for reg_alloc.
3319
3320 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3321
3322         PR target/25731
3323         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
3324         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
3325         sjlj and dwarf2 exception handling.
3326         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
3327         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
3328         * pa/pa.c (function_value): Treat complex and vector types as
3329         aggregates.
3330         (function_arg): Likewise.  Only pass scalar floats in the floating
3331         point argument registers.
3332         * pa/t-slibgcc-dwarf-ver: New file.
3333         * pa/t-slibgcc-sjlj-ver: New file.
3334         * pa/t-slibgcc-elf-ver: Delete file.
3335
3336 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
3337
3338         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
3339         unlikely_test_section_p test.
3340
3341 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
3342
3343         * mode-switching.c (optimize_mode_switching): Make it static.
3344         * basic-block.h: Remove the prototype for
3345         optimize_mode_switching.
3346
3347         * modulo-sched.c (sms_schedule): Make it static.
3348         * rtl.h: Remove the prototype for sms_schedule.
3349
3350         * postreload-gcse.c (gcse_after_reload_main): Make it static.
3351         * rtl.h: Remove the prototype for gcse_after_reload_main.
3352
3353         * reg-stack.c (reg_to_stack): Make it static.
3354         * rtl.h: Remove the prototype for reg_to_stack.
3355
3356         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
3357         Make them static.
3358         * rtl.h: Remove the prototypes for regrename_optimize and
3359         copyprop_hardreg_forward.
3360
3361 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
3362
3363         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
3364         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
3365         Test against the appropriate null constant for the mode.
3366         If 'fixup_overlap' is true, swap the operands if they overlap.
3367         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
3368         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
3369         alpha_split_tmode_pair and adjust for above change.
3370         * config/alpha/alpha.md (movtf_internal): Adjust call to
3371         alpha_split_tfmode_pair and rely on it to swap the operands.
3372         (movti_internal): New insn and post-reload splitter.
3373         (movti): New expander.
3374
3375 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
3376
3377         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
3378         operands.
3379
3380 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
3381
3382         * rtlanal.c (global_reg_mentioned_p_1,
3383         global_reg_mentioned_p): Remove.
3384         * rtl.h: Remove the prototype for global_reg_mentioned_p.
3385
3386         * flow.c (initialize_uninitialized_subregs): Make it static.
3387         * rtl.h: Remove the prototype for
3388         initialize_uninitialized_subregs.
3389
3390         * function.c (instantiate_virtual_regs): Make it static.
3391         * function.h: Remove the prototype for
3392         instantiate_virtual_regs.
3393
3394         * regmove.c (regmove_optimize, combine_stack_adjustments):
3395         Make them static.
3396         * rtl.h: Remove the prototypes for regmove_optimize and
3397         combine_stack_adjustments.
3398
3399 2006-01-17  Roger Sayle  <roger@eyesopen.com>
3400
3401         * config/i386/i386.c (COSTS_N_BYTES): New macro.
3402         (size_cost): Encode costs in bytes so that a reg-reg addition is
3403         equivalent to COSTS_N_INSNS(1).
3404         (override_options): Use the size_cost.branch_cost as the default
3405         ix86_branch_cost when optimizing for size.
3406
3407 2006-01-18  Ben Elliston  <bje@au.ibm.com>
3408
3409         * Makefile.in (D32PBIT_FUNCS): New.
3410         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
3411         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
3412         D64PBIT_FUNCS and D128PBIT_FUNCS.
3413         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
3414         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
3415         D128PBIT are set.
3416         (decnumber_dep): Define.
3417         * doc/libgcc.texi (Decimal float library routines): New node.
3418         * config/dfp-bit.h, config/dfp-bit.c: New files.
3419
3420 2006-01-18  Ben Elliston  <bje@au.ibm.com>
3421
3422         * expr.c (emit_move_change_mode): Always adjust addresses, not
3423         just during reload.  Copy replacements only during reload.
3424         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
3425         emit_move_via_integer.
3426
3427 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
3428
3429         * Makefile.in (check-%, check-consistency): Use $${srcdir}
3430         instead of $(srcdir) and ${srcdir}.
3431
3432 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
3433
3434         PR target/592
3435         PR middle-end/11135
3436         * arm.h (struct machine_function): Add pic_reg.
3437         * arm.c (arm_pic_register): Make unsigned.
3438         (arm_override_options): Only set arm_pic_register if
3439         TARGET_SINGLE_PIC_BASE.
3440         (use_return_insn): Only test for a pic register if it is fixed.
3441         (arm_compute_save_reg0_reg12_mask): Likewise.
3442         (thumb_compute_save_reg_mask): Likewise.
3443         (legitimate_pic_operand): Factor out some known invariants.
3444         (legitimize_pic_address): If we don't have a fixed pic register,
3445         then set up a pseudo in the function entry sequence.  Handle the
3446         pic base being in a pseudo.
3447         (arm_load_pic_register): Handle the pic register being in a pseudo.
3448         (arm_expand_prologue): Only set up the pic register if it is fixed.
3449         (thumb_expand_prologue): Likewise.
3450         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
3451         (pic_load_addr_based_insn): Likewise.
3452         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
3453         fixed.
3454
3455 2006-01-18  Ben Elliston  <bje@au.ibm.com>
3456
3457         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
3458         decimal float modes for all floating point registers.
3459
3460         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
3461         match_code "mem" with match_test "macho_lo_sum_memory_operand".
3462
3463 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
3464
3465         PR c/25682
3466         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
3467         even when the pointer is not NULL.
3468
3469 2006-01-16  Ian Lance Taylor  <ian@airs.com>
3470
3471         * common.opt (ftoplevel-reorder): New option.
3472         * cgraph.c (cgraph_asm_nodes): New global variable.
3473         (cgraph_asm_last_node): New static variable.
3474         (cgraph_order): New global variable.
3475         (cgraph_create_node): Set new order field.
3476         (cgraph_varpool_node): Likewise.
3477         (decide_is_variable_needed): Return true if not
3478         flag_toplevel_reorder.
3479         (cgraph_add_asm_node): New function.
3480         * cgraph.h (struct cgraph_node): Add order field.
3481         (struct cgraph_varpool_node): Add order field.
3482         (struct cgraph_asm_node): Define.
3483         (cgraph_asm_nodes, cgraph_order): Declare.
3484         (cgraph_add_asm_node): Declare.
3485         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
3486         function.
3487         (cgraph_varpool_assemble_pending_decls): Call it.
3488         (cgraph_output_pending_asms): New static function.
3489         (cgraph_finalize_compilation_unit): Call it.
3490         (struct cgraph_order_sort): Define.
3491         (cgraph_output_in_order): New static function.
3492         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
3493         !flag_toplevel_reorder case.
3494         * c-parser.c: Include "cgraph.h".
3495         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
3496         assemble_asm.
3497         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
3498         than -fno-unit-at-a-time.
3499         * doc/invoke.texi (Option Summary): Mention
3500         -fno-toplevel-reorder.
3501         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
3502         -funit-at-a-time documentation.
3503
3504 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
3505             Kazu Hirata  <kazu@codesourcery.com>
3506
3507         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
3508
3509 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
3510
3511         * Makefile.in (FUNCTION_H): New.  Use it instead of
3512         function.h throughout the file.
3513         * function.h: Include tree.h.
3514
3515 2006-01-17  Ben Elliston  <bje@au.ibm.com>
3516
3517         * recog.c: Separate some functions with whitespace.
3518
3519 2006-01-16  Richard Henderson  <rth@redhat.com>
3520
3521         Merge from gomp branch:
3522         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
3523         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
3524         and rename from struct inline_data.  Rename callee* to dst*;
3525         caller* to src*; add copy_decl hook, transform_call_graph_edges,
3526         transform_new_cfg, transform_return_to_modify, and
3527         transform_lang_insert_block flags; remove cloning_p, versioning_p,
3528         update_clones_p.
3529         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
3530         (copy_decl_for_dup): Remove.
3531         * tree-inline.c (struct inline_data): Move to header.
3532         (insert_decl_map): Export.
3533         (remap_decl): Update for member name changes.  Use copy_decl hook.
3534         Allow for replacement to be a non-decl.  Remove dead code.
3535         (remap_type_1): Check for existing mapping.
3536         (remap_type): Export.
3537         (remap_decls): Update for member name changes.
3538         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
3539         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
3540         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
3541         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
3542         (tree_function_versioning, build_duplicate_type): Likewise.
3543         (copy_body_r): Likewise.  Export.
3544         (copy_decl_for_dup): Split into ...
3545         (copy_decl_for_dup_finish, copy_decl_to_var,
3546         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
3547         (replace_ref_tree, inlining_p): Remove.
3548
3549 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3550
3551         * ifcvt.c (if_convert): Make it static.
3552         * rtl.h: Remove the prototype for if_convert.
3553
3554         * local-alloc.c (local_alloc): Make it static.
3555         * rtl.h: Remove the prototype for local_alloc.
3556
3557         * loop.c (loop_optimize): Make it static.
3558         * cfgloop.h: Remove the prototype for loop_optimize.
3559         * rtl.h: Likewise.
3560
3561 2006-01-16  DJ Delorie  <dj@redhat.com>
3562
3563         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
3564         mems.
3565
3566 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3567
3568         * pa.md: Disparage copies between general and floating-point registers
3569         in 32-bit move patterns.
3570
3571 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
3572
3573         PR testsuite/25741
3574         * Makefile.in (check-%): Depend on site.exp instead of
3575         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
3576         directories.
3577
3578 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3579
3580         * global.c (global_alloc): Make it static.
3581         * rtl.h: Remove the prototype for global_alloc.
3582
3583 2006-01-16  Richard Guenther  <rguenther@suse.de>
3584
3585         * tree-ssa-alias.c (struct used_part): Add write_only field.
3586         (get_or_create_used_part_for): Initialize it to true.
3587         (create_overlap_variables_for): Don't create structure variables
3588         for structures that only are written to.
3589         (find_used_portions): Handle MODIFY_EXPR to track whether a
3590         structure is only written to.
3591
3592 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3593
3594         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
3595         static.
3596         * basic-block.h: Remove the prototype for
3597         partition_hot_cold_basic_blocks.
3598
3599 2006-01-16  Rafael Ãƒvila de Espíndola <rafael.espindola@gmail.com>
3600
3601         * cppspec.c (lang_specific_spec_functions): Remove.
3602         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
3603         * gcc.h (lang_specific_spec_functions): Remove.
3604         * gccspec.c (lang_specific_spec_functions): Remove.
3605
3606 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
3607
3608         * combine.c (record_value_for_reg): Invalidate registers
3609         if INSN is null.
3610         (record_dead_and_set_regs_1): Likewise, by passing them to
3611         record_value_for_reg.
3612         (record_dead_and_set_regs): Invalidate stores made by a
3613         call.  We do not combine across a call, but we still
3614         relied on equivalences.
3615
3616 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
3617
3618         * tree-vrp.c (extract_range_from_binary_expr): Cope with
3619         vrp_int_const_binop returning non-constant nodes.
3620
3621 2006-01-16  Paul Brook  <paul@codesourcery.com>
3622
3623         * config/m68k/m68k.c (output_move_const_into_data_reg):
3624         Output correct mnemonic for mvz and mvs.
3625
3626 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
3627
3628         * rtl-factoring.c: Add sequence abstraction algorithm.
3629         * cfgcleanup.c (outgoing_edges_match): Extra checks.
3630         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
3631         ABNORMAL edges.
3632         (block_has_preserve_label): New function.
3633         * common.opt: Register new pass.
3634         * Makefile.in: Ditto.
3635         * passes.c: Ditto.
3636         * timevar.def: Ditto.
3637         * tree-pass.h: Ditto.
3638         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
3639         * rtl.h (make_jump_insn_raw): Add forward decl.
3640         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
3641
3642 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
3643             Roger Sayle  <roger@eyesopen.com>
3644
3645         * fold-const.c (fold_minmax): New static function.
3646         (fold_binary) <MIN_EXPR>: Call it.
3647         <MAX_EXPR>: Likewise.
3648         * stor-layout.c (place_field): Use DECL_SIZE consistently
3649         in the computation of the new record size.
3650
3651 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3652
3653         * cse.c (cse_condition_code_reg): Make it static.
3654         * rtl.h: Remove the prototype for cse_condition_code_reg.
3655
3656         * combine.c (combine_instructions): Make it static.
3657         * rtl.h: Remove the prototype for combine_instructions.
3658
3659 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3660
3661         PR target/25168
3662         * tree.c (get_file_function_name_long): Concatenate the first global
3663         object name with a string derived from the input filename of the object
3664         for type "F".
3665
3666 2006-01-16  Ben Elliston  <bje@au.ibm.com>
3667
3668         * config/i386/winnt-stubs.c: Update FSF address.
3669         * config/xtensa/ieee754-df.S: Ditto.
3670         * config/xtensa/ieee754-sf.S: Ditto.
3671
3672 2006-01-14  Ian Lance Taylor  <ian@airs.com>
3673
3674         * ifcvt.c (noce_init_if_info): New static function, broken out of
3675         noce_process_if_block.
3676         (noce_process_if_block): Call noce_init_if_info.
3677         (check_cond_move_block): New static function.
3678         (cond_move_process_if_block): New static function.
3679         (process_if_block): Call cond_move_process_if_block.
3680
3681 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
3682
3683         * cselib.c (hash_table): Rename to cselib_hash_table.
3684         (cselib_clear_table, discard_useless_values,
3685         remove_useless_values, cselib_lookup_mem, cselib_lookup,
3686         cselib_init, cselib_finish): Adjust uses of hash_table.
3687
3688 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
3689
3690         PR tree-optimization/25485
3691         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
3692         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
3693         is known to be false and true, respectively.
3694
3695 2006-01-14  Richard Guenther  <rguenther@suse.de>
3696
3697         PR tree-optimization/22548
3698         PR tree-optimization/22555
3699         PR tree-optimization/22501
3700         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
3701         * params.def (salias-max-array-elements): New parameter.
3702         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
3703         * doc/invoke.texi (salias-max-array-elements): Document.
3704         * tree-flow-inline.h (var_can_have_subvars): We also handle
3705         arrays now.
3706         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
3707         COMPONENT_REF.
3708         * tree-ssa-structalias.c (params.h): Include.
3709         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
3710         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
3711         (get_constraint_for): For ADDR_EXPR operating on something
3712         containing an ARRAY_REF, add all subvars to the solution.
3713         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
3714         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
3715         for creating MUST_DEFs.
3716         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
3717
3718 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
3719
3720         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
3721         functions.
3722         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
3723         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
3724         number_of_iterations_le): New functions.
3725         (number_of_iterations_special): Removed.
3726         (number_of_iterations_exit): Do not use number_of_iterations_special.
3727         * tree.c (unsigned_type_for): Always return integer type.
3728
3729 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
3730         Richard Guenther  <rguenther@suse.de>
3731
3732         PR rtl-optimization/24257
3733         * gcse.c (find_moveable_store): Only consider a store movable
3734         when the SET_SRC of the insn can be assigned to a register.
3735
3736 2006-01-14  Ian Lance Taylor  <ian@airs.com>
3737
3738         * tree.c (tree_not_class_check_failed): New function.
3739         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
3740         (tree_not_class_check_failed): Declare.
3741
3742 2006-01-13  Ian Lance Taylor  <ian@airs.com>
3743
3744         * reload1.c (do_output_reload): Add assertion rejecting a
3745         CALL_INSN.
3746
3747 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
3748
3749         * combine.c (struct reg_stat): Add new fields truncation_label and
3750         truncated_to_mode.
3751         (record_value_for_reg): Reset truncated_to_mode.
3752         (record_truncated_value): New function.
3753         (check_promoted_subreg): Call it.  Rename to check_conversions.
3754         (combine_instructions): Rename check_promoted_subreg to
3755         check_conversions.
3756         (reg_truncated_to_mode): New function.
3757         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
3758         (gen_lowpart_or_truncate): New function.
3759         (force_to_mode): Use it instead of gen_lowpart.
3760
3761 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
3762
3763         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
3764         VAR is a tag, not its type tag.
3765
3766 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
3767
3768         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
3769         alternatives to match style of other entries.
3770         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
3771
3772 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
3773
3774         PR tree-optimization/25771
3775         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
3776         SSA_NAMES.
3777
3778 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
3779
3780         PR tree-opt/24365
3781         * tree-inline.c (declare_return_variable): If the return variable
3782         was marked as a non gimple complex, set the return slot variable
3783         to be a non gimple comple variable.
3784
3785 2006-01-13  Richard Guenther  <rguenther@suse.de>
3786
3787         * builtins.c (expand_builtin_sincos): New function.
3788         (expand_builtin_mathfn_3): Remove dead code, sin and cos
3789         do not set errno.
3790         (expand_builtin): Expand sincos using expand_builtin_sincos.
3791
3792 2006-01-12  DJ Delorie  <dj@redhat.com>
3793
3794         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
3795         shift counts, separate SI shifts for m32c vs m16c, pass shift type
3796         so that constant shifts can be split.
3797         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
3798         (m32c_valid_pointer_mode): Make static.
3799         (shift_gen_func_for): New.
3800         (m32c_prepare_shift): Use it.  Split large const shifts into
3801         multiple shifts.
3802         * config/m32c/predicates.md (shiftcount_operand): Allow more
3803         general operands.
3804         (longshiftcount_operand): New.
3805         * doc/md.texi (Machine Constraints): Document In6.
3806
3807 2006-01-13  Ben Elliston  <bje@au.ibm.com>
3808
3809         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
3810         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
3811         documentation.
3812
3813 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
3814
3815         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
3816         to try to avoid clobbering pieces of structures when we know
3817         something about the whole structure.
3818         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
3819
3820 2006-01-13  Ben Elliston  <bje@au.ibm.com>
3821
3822         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
3823         return in memory, as this is no limitation is no longer present.
3824
3825 2006-01-12  DJ Delorie  <dj@redhat.com>
3826
3827         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
3828         mova with fb, and for fb+0 -> An.
3829
3830         * config/m32c/mov.md (peephole2): Fix enabling logic.
3831
3832         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
3833         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
3834         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
3835         FINI_ARRAY_SECTION_ASM_OP): Define.
3836
3837         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
3838         variable.
3839         (m32c_legitimize_reload_address): New logic to reload FB to An.
3840         (m32c_output_reg_push): Add newline.
3841         (m32c_output_reg_pop): Likewise.
3842
3843 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
3844
3845         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
3846
3847 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
3848
3849         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
3850
3851 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
3852
3853         * config/sh/predicates.md (sh_rep_vec): Add parallel to
3854         match_code.
3855
3856 2006-01-11  Ben Elliston  <bje@au.ibm.com>
3857
3858         * rtlanal.c (find_reg_note): Assert insn is not null.
3859
3860 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
3861
3862         * df-scan.c (df_hard_reg_init): Move declaration of i outside
3863         ifdef.
3864
3865 2006-01-11  Jeff Law  <law@redhat.com>
3866
3867         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
3868         hold edge pairs.
3869         (mark_threaded_blocks, register_jump_thread): New functions.
3870         (thread_through_all_blocks): Remove unwanted argument.  No
3871         longer rely on e->aux to communicate thread target info.
3872         Call mark_threaded_blocks.  Release the threaded_blocks
3873         bitmap and threaded_edges vector when complete.
3874         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
3875         (threaded_blocks): Remove.
3876         (tree_ssa_dominator_optimize): Remove initialization and
3877         finalization of threaded_blocks.  Simplify call to
3878         thread_through_all_blocks.
3879         (thread_across_edge): Call register_jump_thread rather than
3880         storing thread information into e->aux.
3881         (free_all_edge_infos): Simplify now that e->aux is no longer
3882         used to communicate with thread_through_all_blocks.
3883         * tree-flow.h (thread_through_all_blocks): Update prototype.
3884         (register_jump_thread): Prototype.
3885
3886 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
3887
3888         * df-core.c (df_compact_blocks, df_bb_replace): Use
3889         SET_BASIC_BLOCK instead of BASIC_BLOCK.
3890
3891 2006-01-11  Richard Guenther  <rguenther@suse.de>
3892
3893         PR tree-optimization/25734
3894         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
3895         stop propagation after successful propagation to the LHS.
3896
3897 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
3898
3899         * basic-block.h (control_flow_graph): Change the type of
3900         x_basic_block_info to VEC(basic_block,gc) *.
3901         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
3902         basic_block_info.
3903         (SET_BASIC_BLOCK): New.
3904         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
3905         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
3906         * cfgbuild.c (find_basic_blocks): Likewise.
3907         * cfglayout.c (fixup_reorder_chain): Likewise.
3908         * cfgrtl.c (create_basic_block_structure,
3909         rtl_create_basic_block): Likewise.
3910         * ifcvt.c (find_if_case_1): Likewise.
3911         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
3912         Likewise.
3913
3914 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
3915
3916         * Makefile.in: Removed rotted odf.c entry.
3917
3918 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
3919
3920         PR target/25706
3921         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
3922         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
3923         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
3924         output pattern modifier, not %e.
3925         * config/cris/cris.c (cris_op_str): Update comment about pattern
3926         modifier.
3927         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
3928         before falling through into...
3929         <case 'E'>: Redefined from old 'e' case.
3930
3931 2006-01-11  Jan Hubicka  <jh@suse.cz>
3932
3933         PR target/25042
3934         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
3935
3936 2006-01-11  Jan Hubicka  <jh@suse.cz>
3937
3938         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
3939         * i386.c (x86_decompose_lea): Kill.
3940         (ix86_rtx_costs): Kill.
3941
3942 2006-01-11  Jan Hubicka  <jh@suse.cz>
3943
3944         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
3945         * cgraph.h (cgraph_node): Add inline_decl.
3946         (cgraph_insert_node_to_hashtable): Declare.
3947         (save_inline_function_body): Declare.
3948         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
3949         clones.
3950         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
3951         (cgraph_function_versioning): Update call of tree_function_versioning.
3952         (save_inline_function_body): New function.
3953         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
3954         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
3955         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
3956         (cgraph_default_inline_p): Likewise.
3957         (cgraph_decide_inlining_incrementally): Likewise.
3958         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
3959         (copy_bb): Kill saving; do updating of clones.
3960         (copy_cfg_body): Kill saving.
3961         (initialize_inlined-parameters): Likewise.
3962         (expand_call_inline): Likewise.
3963         (save_body): Kill.
3964         (tree_function_versioning): New parameter "update_clones".
3965         (inlining_p): Kill saving.
3966         * tree-inline.h (tree_function_versioning): Update prototype.
3967         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
3968         saving.
3969
3970 2006-01-11  Ian Lance Taylor <ian@airs.com>
3971
3972         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
3973         Allow undoing set of machine mode.
3974         (do_SUBST): Use enums instead of is_int.
3975         (do_SUBST_MODE): New function.
3976         (SUBST_MODE): New macro.
3977         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
3978         reg and trying to replace reg_regno_rtx with a new register.
3979         (undo_all): Use new enums, handle undoing a PUT_MODE change.
3980         (simplify_set): Use SUBST_MODE.
3981         (distribute_notes): Remove code that tried to update reg notes
3982         for regno_reg_rtx changes.
3983
3984 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
3985
3986         PR tree-optimization/23109
3987         PR tree-optimization/23948
3988         PR tree-optimization/24123
3989
3990         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
3991         * tree-cfg.c (single_noncomplex_succ): New.
3992         * tree-flow.h (single_noncomplex_succ): Declare it.
3993         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
3994         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
3995         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
3996         insert_bb, register_division_in, insert_reciprocals,
3997         replace_reciprocal, free_bb): New.
3998         (execute_cse_reciprocals_1): Rewritten.
3999         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
4000         Do not commit any edge insertion.  Always compute dominators and
4001         create the allocation pool.
4002         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
4003         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
4004         * targhooks.c (default_min_divistions_for_recip_mul): New.
4005         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
4006         * passes.c (init_optimization_passes): Run recip after tree loop
4007         optimizations.
4008         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
4009
4010 2006-01-11  Danny Berlin <dberlin@dberlin.org>
4011             Kenneth Zadeck <zadeck@naturalbridge.com>
4012
4013         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
4014         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
4015         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
4016         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
4017         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
4018         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
4019         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
4020         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
4021         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
4022         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
4023         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
4024         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
4025         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
4026         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
4027         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
4028         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
4029         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
4030         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
4031         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
4032         DF_SCAN_POST_ALLOC): New macros.
4033         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
4034         df_free_bb_function, df_local_compute_function, df_init_function,
4035         df_dataflow_function, df_confluence_function_0,
4036         df_confluence_function_n, df_transfer_function,
4037         df_finalizer_function, df_free_function, df_dump_problem_function,
4038         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
4039         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
4040         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
4041         df_urec_bb_info, ) New types.
4042         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
4043         variables.
4044         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
4045         df_analyze_simple_change_some_blocks,
4046         df_analyze_simple_change_one_block, df_compact_blocks,
4047         df_bb_replace, df_bb_regno_last_use_find,
4048         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
4049         df_insn_regno_def_p, df_find_def, df_find_use,
4050         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
4051         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
4052         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
4053         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
4054         debug_df_chain, df_get_dependent_problem, df_chain_create,
4055         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
4056         df_grow_bb_info, df_chain_dump, df_print_bb_index,
4057         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
4058         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
4059         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
4060         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
4061         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
4062         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
4063         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
4064         df_ref_remove, df_insn_refs_delete, df_refs_delete,
4065         df_reorganize_refs, df_set_state, df_hard_reg_init,
4066         df_read_modify_subreg_p) New public functions.
4067         * df-core.c: The core dataflow solver and glue routines for rtl
4068         dataflow.
4069         (df_init, df_add_problem, df_set_blocks, df_finish,
4070         df_hybrid_search_forward, df_hybrid_search_backward,
4071         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
4072         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
4073         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
4074         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
4075         df_reg_defined, df_find_use, df_reg_used, df_dump,
4076         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
4077         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
4078         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
4079         debug_df_useno, reset_df_after_reload): New functions.
4080         * df-scan.c: The scanning fuctions, once in df.c, completely
4081         rewritten so that they now fully model the functionality of
4082         register usage at the backend.
4083         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
4084         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
4085         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
4086         df_grow_insn_info, df_rescan_blocks, df_ref_create,
4087         df_get_artificial_defs, df_get_artificial_uses,
4088         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
4089         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
4090         df_refs_delete, df_reorganize_refs, df_set_state,
4091         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
4092         df_def_record_1, df_defs_record, df_uses_record,
4093         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
4094         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
4095         df_record_exit_block_uses, df_hard_reg_init): New functions.
4096
4097         * df-problems.c: Seven concrete dataflow problems that use the
4098         scanning in df-scan.c and are solved by the engine in df-core.c.
4099         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
4100         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
4101         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
4102         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
4103         df_ru_free_bb_info, df_ru_alloc,
4104         df_ru_bb_local_compute_process_def,
4105         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
4106         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
4107         df_ru_transfer_function, df_ru_free, df_ru_dump,
4108         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
4109         df_rd_free_bb_info, df_rd_alloc,
4110         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
4111         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
4112         df_rd_transfer_function, df_rd_free, df_rd_dump,
4113         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
4114         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
4115         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
4116         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
4117         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
4118         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
4119         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
4120         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
4121         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
4122         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
4123         df_urec_mark_reg_change, df_urec_check_earlyclobber,
4124         df_urec_mark_reg_use_for_earlyclobber,
4125         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
4126         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
4127         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
4128         df_urec_dump, df_urec_add_problem, df_chain_alloc,
4129         df_chain_create_bb_process_use, df_chain_create_bb,
4130         df_chain_finalize, df_chain_free, df_chains_dump,
4131         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
4132         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
4133         df_reg_lifetime): New functions.
4134         * df.c: Deleted file.
4135         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
4136         consistent with new df api.
4137         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
4138         rest_of_handle_sms): Ditto.
4139         * web.c (unionfind_union, union_defs, entry_register, web_main):
4140         Ditto.
4141         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
4142         invariant_expr_equal_p, find_defs, check_dependencies,
4143         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
4144         free_inv_motion_data, move_loop_invariants): Ditto.
4145         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
4146         Update dependencies.
4147         (odf.c): Added defective entry that was deleted later in day.
4148         * sched-deps.c (sched_analyze_1): Ditto.
4149
4150 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
4151
4152         * tree-ssa-operands.c (get_expr_operands): Record addressable
4153         variables directly.  Do not call add_stmt_operands for CONST_DECLs
4154         and ARRAY_DECLs.
4155         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
4156         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
4157
4158 2006-01-11  Ben Elliston  <bje@au.ibm.com>
4159
4160         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
4161         function returns true in the positive case.
4162
4163 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4164
4165         PR target/20754
4166         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
4167         for SI, DI, SF and DF modes.  Add alternatives to copy between
4168         general and floating point registers to the 32-bit patterns.
4169         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
4170         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
4171         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
4172         generating 64-bit code.
4173         * config/pa/pa.c (output_move_double): Handle copies between general
4174         and floating registers.
4175
4176 2006-01-10  Stuart Hastings  <stuart@apple.com>
4177
4178         * config/i386/i386.md (set_got): Update.
4179         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
4180         (builtin_setjmp_receiver): Mach-O support.
4181         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
4182         (GOT_SYMBOL_NAME): Define.
4183         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
4184         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
4185         * config/i386/i386.c (override_options): Revise for Darwin.
4186         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
4187         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
4188         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
4189         * config/i386/i386-protos.h (output_set_got): Likewise.
4190         * config/darwin.c (machopic_legitimize_pic_address): Update
4191         regs_ever_live[].
4192
4193 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
4194
4195         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
4196         when MODE isn't BLKmode.
4197
4198 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
4199
4200         PR rtl-optimization/25367
4201         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
4202
4203 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
4204
4205         PR target/25718
4206         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
4207         for a negative bound.
4208
4209 2006-01-10  Richard Guenther  <rguenther@suse.de>
4210
4211         * tree-ssa-structalias.c (get_constraint_for_component_ref):
4212         Never override with anything constraint.
4213
4214 2006-01-10  Jan Beulich  <jbeulich@novell.com>
4215
4216         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
4217         256 bits when optimize_size.
4218
4219 2006-01-10  Jan Beulich  <jbeulich@novell.com>
4220
4221         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
4222         MASK_ALIGN_DOUBLE.
4223         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
4224         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
4225         arguments.
4226
4227 2006-01-10  Ben Elliston  <bje@au.ibm.com>
4228
4229         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
4230         float modes.
4231         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
4232         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
4233         (USE_FP_FOR_ARG): Reject decimal float modes.
4234         (function_arg_advance): Likewise.
4235         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
4236         (rs6000_handle_altivec_attribute): Do not permit decimal floating
4237         point types in AltiVec vectors.
4238         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
4239         (rs6000_libcall_value): Likewise.
4240
4241 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
4242
4243         * config/xtensa/ieee754-df.S: New file.
4244         * config/xtensa/ieee754-sf.S: New file.
4245         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
4246         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
4247         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
4248
4249 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
4250
4251         * config/sh/predicates.md (binary_float_operator,
4252         binary_logical_operator, commutative_float_operator,
4253         equality_comparison_operator, greater_comparison_operator,
4254         less_comparison_operator, logical_operator,
4255         noncommutative_float_operator, shift_operator,
4256         symbol_ref_operand, unary_float_operator): Remove redundant
4257         conditionals.
4258
4259 2006-01-09  Jeff Law  <law@redhat.com>
4260
4261         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
4262         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
4263         now unused arguments.  Callers updated.
4264         (eliminate_redundant_computations): Remove now unused arguments,
4265         callers updated.
4266         (local_fold): Remove, no longer used.
4267         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
4268         and moved to...
4269         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
4270         (simplify_cond): New function.
4271         (forward_propagate_into_cond): Call simplify_cond.
4272
4273 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
4274
4275         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
4276         (*vec_extractv2di_1_sse): New.
4277
4278 2006-01-09  Ben Elliston  <bje@au.ibm.com>
4279
4280         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
4281
4282 2006-01-08  Richard Guenther  <rguenther@suse.de>
4283
4284         * tree-ssa-structalias.c (get_constraint_for): Remove
4285         anyoffset argument.
4286         (get_constraint_for_component_ref): Likewise.
4287         (do_deref): Likewise.
4288         (get_constraint_for): Likewise.
4289         (do_structure_copy): Likewise.
4290         (handle_ptr_arith): Likewise.
4291         (find_func_aliases): Likewise.  Remove unused need_anyoffset
4292         variable.
4293
4294 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
4295             Kaz Kojima  <kkojima@gcc.gnu.org>
4296
4297         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
4298         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
4299         (EXTRA_CONSTRAINT_C16): Remove.
4300         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
4301         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
4302         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
4303         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
4304         constants of SHmedia.  Handle nested constant expressions of
4305         SHmedia correctly.
4306         (andcosts): Fix the costs for SHmedia constants.
4307         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
4308         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
4309         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
4310         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
4311         (movv4hi_i, movv2si_i): Likewise.
4312         (movsi_const): Adjust the second operand of ior so to match with
4313         the Csu constraint.
4314         (movdi_const, movdi_const_32bit): Likewise.
4315         (movdi_const_16bit+1): Don't sign-extend LOW.
4316         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
4317         step.
4318         (*double_shori): Fix the split condition.  Use GEN_INT instead
4319         of get_int_mode calls.  Mask lower 16-bit of the argument of
4320         the last GEN_INT.
4321         (sym2GOTPLT): Remove.
4322         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
4323         gen_rtx_UNSPEC.
4324         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
4325         instead of EXTRA_CONSTRAINT_C16.
4326
4327 2006-01-07  Ian Lance Taylor  <ian@airs.com>
4328             David Edelsohn  <edelsohn@gnu.org>
4329
4330         PR rtl-optimization/25662
4331         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
4332         for constant operands instead of simplify_gen_binary.
4333         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
4334         after trying simplify_binary_operation
4335
4336 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
4337
4338         * tree.c (iterative_hash_expr): Hash decls based on UID.
4339
4340 2006-01-06  Eric Christopher  <echristo@apple.com>
4341
4342         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
4343         (TARGET_UNWIND_EMIT): Fix spelling.
4344         * target.h (gcc_target): Add except_table_label.
4345         * except.c (output_function_exception_table): Use.
4346         * varasm.c (default_emit_except_table_label): New.
4347         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
4348         define.
4349         (asm_out): Add here.
4350         * output.h (default_emit_except_table_label): Prototype.
4351         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
4352         * config/darwin.c (darwin_emit_except_table_label): Define.
4353         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
4354
4355 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
4356
4357         PR tree-optimization/18527
4358         * tree-ssa-loop-niter.c (number_of_iterations_cond,
4359         number_of_iterations_special, number_of_iterations_exit):
4360         Move base and step of an iv to a single structure.  Add
4361         no_overflow flag, and use it in # of iterations analysis.
4362         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
4363         folded_casts argument.
4364         (simple_iv): Pass base and step in a structure.  Set no_overflow
4365         flag.
4366         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
4367         Evaluate expensiveness of computing # of iterations instead of
4368         the final expression.
4369         * tree-scalar-evolution.h (affine_iv): New structure.
4370         (simple_iv): Declaration changed.
4371         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
4372         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
4373         find_givs_in_stmt): Changed due to simple_iv change.
4374
4375 2006-01-06  Jeff Law  <law@redhat.com>
4376
4377         PR ada/24994
4378         * tree-cfg.c (bsi_replace): Rename final argument from
4379         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
4380         change (stmt -> orig_stmt).
4381         * tree-eh.c (verify_eh_throw_stmt_node): New function.
4382         (bsi_remove): Add new argument.  Remove EH information
4383         if requested.
4384         (verify_eh_throw_table_statements): New function.
4385         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
4386         updated.
4387         * tree-optimize.c (execute_free_cfg_annotations): Verify
4388         the EH throw statement table after removing annotations.
4389         * except.h (verify_eh_throw_table_statements): Prototype.
4390         * tree-flow.h (bsi_remove): Update prototype.
4391         * tree-vrp.c (remove_range_assertions): Add new argument to
4392         bsi_remove call.
4393         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
4394         * tree-complex.c (expand_complex_div_wide): Likewise.
4395         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
4396         * tree-tailcall.c (eliminate_tailcall): Likewise.
4397         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
4398         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
4399         * tree-nrv.c (tree_nrv): Likewise.
4400         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
4401         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
4402         (combine_blocks): Likewise.
4403         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
4404         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
4405         (cleanup_control_flow): Likewise.
4406         (remove_forwarder_block): Likewise.
4407         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
4408         * tree-sra.c (sra_replace): Likewise.
4409         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
4410         (forward_propagate_single_use_vars): Likewise.
4411         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
4412         * tree-inline.c (expand_call_inline): Likewise.
4413         * tree-vect-transform.c (vect_transform_loop): Likewise.
4414         * tree-outof-ssa.c (rewrite_trees): Likewise.
4415         * tree-cfg.c (make_goto_expr_edges): Likewise.
4416         (cleanup_dead_labels): Likewise.
4417         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
4418         (bsi_move_before, bsi_move_after): Likewise.
4419         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
4420         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
4421
4422 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
4423
4424         PR tree-opt/25528
4425         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
4426         and IMAGPART_EXPR.
4427         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
4428         on non gimple variables.  Also add checks at the top for decls and
4429         mtags.
4430         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
4431         complex types.
4432         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
4433         and IMAGPART_EXPR for creating MUST_DEFs.
4434         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
4435         and NAME_MEMORY_TAG separately from the DECLs.
4436
4437 2006-01-06  Richard Guenther  <rguenther@suse.de>
4438
4439         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
4440         annotation, if necessary.
4441         * tree-ssa-pre.c (create_expression_by_pieces): Remove
4442         redundant calls to update_stmt.
4443         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
4444         Likewise.
4445
4446 2006-01-05  Richard Henderson  <rth@redhat.com>
4447
4448         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
4449
4450 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
4451
4452         * c-typeck.c: Update copyright date.
4453
4454 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
4455
4456         * c-typeck.c (build_c_cast): Always warn when casting
4457         from a pointer to an integer of different size, even if
4458         the node was constant.
4459
4460 2006-01-05  Richard Guenther  <rguenther@suse.de>
4461
4462         PR tree-optimization/22555
4463         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
4464         if one structure field is an array.
4465         * tree-ssa-operands.c (get_expr_operands): Continue scanning
4466         operands even if we found a subvar, but ignore VOPs in this
4467         case.
4468         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
4469         for renaming.
4470         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
4471
4472 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
4473
4474         PR middle-end/24998
4475         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
4476
4477 2006-01-05  Richard Guenther  <rguenther@suse.de>
4478             Diego Novillo  <dnovillo@redhat.com>
4479
4480         * tree-pass.h (TODO_remove_unused_locals): Define.
4481         * gimple-low.c (expand_var_p, remove_useless_vars,
4482         pass_remove_useless_vars): Remove.  Update all users.
4483         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
4484         (remove_unused_locals): New function.
4485         * tree-flow.h (remove_unused_locals): Declare.
4486         * passes.c (execute_todo): Call remove_unused_locals if
4487         TODO_remove_unused_locals is set.
4488         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
4489         * tree-ssa-dce.c (pass_dce): Likewise.
4490         * tree-outof-ssa.c (pass_del_ssa): Likewise.
4491
4492 2006-01-05  Richard Guenther  <rguenther@suse.de>
4493
4494         * tree-flow.h (struct fieldoff): Decompose field to
4495         type, size and decl.
4496         * tree-ssa-alias.c (create_sft): Take type as parameter.
4497         (create_overlap_variables_for): Store type, size and decl
4498         in the fieldoff structure.
4499         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
4500         of struct fieldoff.
4501         (push_fields_onto_fieldstack): Likewise.
4502         (create_variable_info_for): Likewise.  Use offset for the
4503         SFT name if the decl is not available.
4504
4505 2006-01-04  Paul Brook  <paul@codesourcery.com>
4506
4507         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
4508
4509 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
4510
4511         * lambda-code.c (can_put_in_inner_loop): Relax
4512         restrictions.
4513         (can_put_after_inner_loop): New function.
4514         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
4515         (perfect_nestify): Change to make copies and modify uses.
4516
4517 2006-01-04  Richard Henderson  <rth@redhat.com>
4518
4519         Merge from gomp branch:
4520         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
4521         via integer constant.
4522         (pragma_lex): Remove.
4523         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
4524         rather than parsing it.
4525         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
4526         handle_pragma_extern_prefix): Add %< %> quotes.
4527         (registered_pragmas): New.
4528         (c_register_pragma_1): New.
4529         (c_register_pragma): Use it.
4530         (c_register_pragma_with_expansion): Likewise.
4531         (c_invoke_pragma_handler): New.
4532         (init_pragma): Use cpp_register_deferred_pragma directly for
4533         pch_preprocess.
4534         * c-pragma.h (enum pragma_kind): New.
4535         (pragma_handler): New.
4536         (c_invoke_pragma_handler): Declare.
4537         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
4538         CPP_PRAGMA_EOL.
4539         * c-common.h (c_common_pch_pragma): Update decl.
4540         * Makefile.in (c-parser.o): Update dependencies.
4541         (GTFILES): Add c-pragma.h.
4542         * c-parser.c (struct c_token): Add pragma_kind.
4543         (struct c_parser): Add in_pragma.
4544         (c_lex_one_token): Always initialize keyword and pragma_kind.
4545         Extract data for CPP_PRAGMA.
4546         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
4547         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
4548         Don't allow CPP_PRAGMA_EOL if in_pragma.
4549         (c_parser_consume_pragma): New.
4550         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
4551         (c_parser_skip_to_end_of_parameter): Likewise.
4552         (c_parser_skip_to_end_of_block_or_statement): Likewise.
4553         (c_parser_skip_to_pragma_eol): New.
4554         (c_parser_external_declaration): Handle CPP_PRAGMA.
4555         (c_parser_compound_statement_nostart): Likewise.
4556         (c_parser_statement_after_labels): Likewise.
4557         (c_parser_pragma): New.
4558         (pragma_lex): Likewise.
4559         (c_parser_pragma_pch_preprocess): New.
4560         (c_parser_new): Merge into ...
4561         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
4562
4563 2006-01-04  Jeff Law  <law@redhat.com>
4564
4565         PR ada/24994
4566         * tree-cfg.c (bsi_replace): Remove the original statement
4567         from the EH throw statement table.
4568
4569 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
4570
4571         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
4572         make the prototype extern "C" and add throw ().
4573
4574         PR target/25554
4575         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
4576         and pos non-negative and pos + len <= 32.
4577         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
4578         drop pos + len < HOST_BITS_PER_WIDE_INT test.
4579         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
4580
4581         PR c/25559
4582         * c-common.c (handle_vector_size_attribute): Reject zero vector size
4583         as well as sizes not multiple of component size.
4584
4585         PR debug/25562
4586         * function.c (instantiate_expr): New function.
4587         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
4588         walk its DECL_VALUE_EXPR with instantiate_expr.
4589
4590         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
4591         DW_OP_deref{,_size} if address isn't going to be added.
4592
4593 2006-01-04  Ben Elliston  <bje@au.ibm.com>
4594
4595         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
4596         * config/fp-bit.c: Likewise.
4597
4598 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
4599
4600         * dominance.c: Add comment about why we use DFS numbering
4601         of dominance tree.
4602
4603 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
4604             Richard Henderson  <rth@redhat.com>
4605
4606         Merge from gomp-branch:
4607         * varasm.c (assemble_variable): Handle thread-local COMMON data.
4608         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
4609
4610 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
4611
4612         PR rtl-optimization/25578
4613         * combine.c (combine_simplify_rtx, force_to_mode): Don't
4614         pass a parameter to simplify_shift_const if changing ASHIFTRT
4615         to LSHIFTRT.
4616
4617 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
4618
4619         * builtins.c (get_builtin_sync_mem): New function.
4620         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
4621         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
4622         Call get_builtin_sync_mem to generate mem rtx.
4623
4624 2006-01-03  Richard Guenther  <rguenther@suse.de>
4625
4626         PR c/25183
4627         * stmt.c (add_case_node): Make sure to clear overflow flags
4628         from ranges.
4629
4630 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
4631
4632         Merge from gomp-branch.
4633         * config/sparc/sync.md: New file.
4634         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
4635         UNSPECV_LDSTUB): New constants.
4636         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
4637         * config/sparc/predicates.md (memory_reg_operand): New predicate.
4638         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
4639         prototype.
4640
4641 2006-01-03  Roger Sayle  <roger@eyesopen.com>
4642
4643         * combine.c (reg_subword_p): New predicate to test whether the
4644         destination of a set refers to a subword/piece of a register.
4645         (try_combine): Generalize the code to merge the setting of a
4646         pseudo to a constant followed by a set of a subword of that
4647         register to a constant.
4648
4649 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
4650
4651         * basic-block.h (control_flow_graph): Change the type of
4652         x_label_to_block_map to VEC(basic_block,gc) *.
4653         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
4654         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
4655
4656         * tree-ssa-propagate.c (cfg_blocks): Change the type to
4657         VEC(basic_block,heap) *.
4658         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
4659         ssa_prop_fini): Adjust the uses of cfg_blocks.
4660
4661 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
4662
4663         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
4664         COMPONENT_REFs.
4665         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
4666         hashing trees instead of a pointer hash.
4667         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
4668         compare for MEM_EXPR.
4669
4670         PR rtl-optimization/25130
4671         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
4672         when comparing MEMs for GCSE
4673
4674 2006-01-03  Ben Elliston  <bje@au.ibm.com>
4675
4676         * targhooks.h (default_decimal_float_supported_p): Declare.
4677         * targhooks.c (default_decimal_float_supported_p): Define.
4678         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
4679         `default_decimal_float_supported_p'.
4680         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
4681
4682 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
4683
4684         * combine.c (apply_distributive_law <SUBREG>): Check
4685         TRULY_NOOP_TRUNCATION.
4686
4687 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
4688
4689         * dwarf2out.c (have_switched_text_section): Delete.
4690         (have_multiple_function_sections): New.
4691         (have_location_lists): Make 'bool'.
4692         (add_AT_loc_list): Use 'true' not '1'.
4693         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
4694         (output_loc_list): Use have_multiple_function_sections.
4695         (output_ranges): Likewise.
4696         (dwarf2out_begin_function): Set have_multiple_function_sections if
4697         necessary.
4698         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
4699         Check function_section rather than DECL_SECTION_NAME.
4700         (dwarf2out_finish): Use have_multiple_function_sections.
4701         Don't clear have_location_lists.
4702
4703 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
4704             Jan Hubicka  <jh@suse.cz>
4705
4706         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
4707         case of conditional jump jumping to the next instruction.
4708         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
4709         cases of conditional jump jumping to the next instruction.
4710
4711 2006-01-02  Jan Hubicka  <jh@suse.cz>
4712
4713         * i386.c (*_cost): Add COSTS_N_INSNS.
4714         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
4715
4716 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
4717
4718         PR target/25259
4719         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
4720
4721 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
4722
4723         * config/arm/arm.c (all_fpus): Fix comment typo.
4724         * config/darwin.c: Likewise.
4725         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
4726         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
4727         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
4728
4729 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
4730
4731         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
4732         (rs6000_split_compare_and_swapqhi): New.
4733         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
4734         (sync_compare_and_swapqhi_internal): New.
4735         * config/rs6000/rs6000-protos.h: Declare.