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PR middle-end/23670
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1 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2
3         PR middle-end/23670
4         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
5         (X,Y) and the corresponding symmetry related transformations.
6         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
7         (X,Y) and its symmetry related transformations.
8
9 2006-02-14  Roger Sayle  <roger@eyesopen.com>
10
11         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
12         and GEU.
13
14 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
15
16         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
17
18 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
19
20         PR bootstrap/26053
21         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
22         support COMDAT group.
23         * configure: Regenerate.
24
25 2006-02-14  Roger Sayle  <roger@eyesopen.com>
26
27         PR middle-end/26279
28         PR middle-end/26280
29         PR middle-end/26283
30         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
31
32 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
33
34         Fix PR tree-optimization/26260
35
36         * doc/invoke.texi (max-fields-for-field-sensitive): Document
37         param.
38         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
39         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
40         * tree-ssa-structalias.c (create_variable_info_for): Use
41         MAX_FIELDS_FOR_FIELD_SENSITIVE.
42         
43 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
44
45         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
46         Document.
47         * tree-ssa-loop-niter.c (number_of_iterations_ne,
48         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
49         of the ending condition.
50         * tree-ssa-loop-manip.c: Include params.h.
51         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
52         tree_unroll_loop): New functions.
53         * tree-pass.h (pass_loop_prefetch): Declare.
54         * loop.c (rest_of_handle_loop_optimize): Test for
55         -fprefetch-loop-arrays-rtl.
56         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
57         * timevar.def (TV_TREE_PREFETCH): New timevar.
58         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
59         pass_loop_prefetch): New.
60         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
61         (cleanup_tree_cfg_loop): Call scev_reset.
62         * common.opt (fprefetch-loop-arrays-rtl): Add.
63         * tree-ssa-loop-prefetch.c: New file.
64         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
65         (new_temp_expr_table): Initialize expr_vars.
66         (free_temp_expr_table): Cleanup expr_vars.
67         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
68         expressions from being merged into one.
69         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
70         (struct tree_niter_desc): Add control, bound and cmp fields.
71         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
72         Declare.
73         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
74         (tree-cfgcleanup.o): Add SCEV_H dependency.
75         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
76         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
77
78 2006-02-14  Richard Guenther  <rguenther@suse.de>
79
80         PR tree-optimization/26258
81         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
82         in PHI argument processing.
83
84 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
85
86         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
87         new expression in the requested machine mode.
88
89 2006-02-13  Roger Sayle  <roger@eyesopen.com>
90
91         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
92         directly, instead let do_compare_rtx_and_jump handle this for us.
93         * expr.c (expand_expr_real_1): Likewise.
94         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
95         before do_jump_by_parts_greater.
96         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
97         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
98
99 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
100
101         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
102
103 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
104
105         PR rtl-optimization/26235
106         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
107         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
108         format.
109
110 2006-02-13  Jeff Law  <law@redhat.com>
111
112         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
113         TRUTH_XOR_EPR.
114
115 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
116
117         PR middle-end/26092
118         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
119         twice if decl is a builtin.  When trying again, call get_callee_fndecl
120         first to verify it is still a builtin.
121
122 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
123
124         * dwarf2out.c (base_type_die): Don't add AT_name here.
125         (subrange_type_die): Don't add AT_name here.
126         (modified_type_die): Rearrange code flow.  Do add AT_name here.
127
128 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
129
130         PR rtl-optimization/26247
131         PR rtl-optimization/26248
132         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
133
134 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
135
136         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
137         * config/fixtfdi.c: Likewise.
138         * config/fixunstfdi.c: Likewise.
139         * config/floatditf.c: Likewise.
140
141 2006-02-13  Roger Sayle  <roger@eyesopen.com>
142
143         PR middle-end/24427
144         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
145         into (X,C2) if C1 is a subset of the bits of C2.  Transform
146         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
147         (X&(C1&~C2))|C2.
148         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
149
150 2006-02-13  Josh Conner  <jconner@apple.com>
151
152         PR target/25376
153         * varasm.c (function_section): Check for section name before
154         calling select_section on targets that define
155         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
156         unlikely_text_section instead of hot_function_section if
157         first_function_block_is_cold.
158
159 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
160
161         PR middle-end/25335
162         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
163
164 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
165
166         PR rtl-optimization/26222
167         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
168         after tree->rtl expansion.
169         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
170         before passing it to emit_move_insn.
171
172 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
173
174         * doc/invoke.texi (-Write-strings): Document that it is enabled by
175         default. 
176         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
177         Clarify documentation.
178         * c-common.h (warn_write_strings): Remove.
179         * c-common.c (warn_write_strings): Likewise.
180         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
181         default for C++.
182
183 2006-02-12  Roger Sayle  <roger@eyesopen.com>
184
185         PR middle-end/25724
186         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
187         (do_jump_parts_zero_rtx): New function renamed from
188         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
189         (do_jump_parts_equality_rtx): New function split out from
190         do_jump_parts_equality.  Old implementation renamed as above.
191         Call do_jump_parts_zero_rtx if either operand is zero.
192         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
193         do all of the heavy lifting.
194         (do_compare_rtx_and_jump): Handle multi-word comparisons by
195         calling either do_jump_by_parts_greater_rtx or
196         do_jump_by_parts_equality_rtx.
197         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
198         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
199         moved to do_compare_rtx_and_jump, call it directly.
200         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
201         mode argument.  Call do_compare_rtx_and_jump.
202         (emit_case_nodes): Update calls to do_jump_if_equal.
203
204 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
205
206         PR rtl-optimization/26225
207         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
208
209 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
210
211         PR rtl-optimization/26232
212         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
213
214 2006-02-11  Jason Merrill  <jason@redhat.com>
215
216         PR tree-opt/24365
217         * tree-inline.c (declare_return_variable): Just don't use the
218         modify target if it's a gimple complex reg and the return slot
219         isn't.
220
221 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
222
223         * doc/contrib.texi: Update my entry.
224
225 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
226
227         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
228
229 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
230
231         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
232         expensive.
233
234 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
235
236         * doc/invoke.texi (-floop-optimize2): Removed.
237         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
238         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
239         Test flag_branch_on_count_reg only if HAVE_doloop_end.
240         * common.opt (floop-optimize2): Removed.
241         (fmove-loop-invariants): Enabled by default.
242
243 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
244
245         * tree-if-conv.c (combine_blocks): Free the result of
246         get_loop_exit_edges.
247
248 2006-02-10  Jeff Law  <law@redhat.com>
249
250         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
251
252         PR tree-optimization/26213
253         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
254         loop trying to follow SSA_NAME_VALUE chains.
255
256 2006-02-10  Richard Guenther  <rguenther@suse.de>
257
258         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
259         deal with structures that end in implicitly variable sized arrays.
260
261 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
262
263         PR rtl-optimization/24762
264         * df-scan.c (df_bb_refs_record): Record correct registers defined on
265         eh edges.
266
267 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
268
269         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
270         (struct ivopts_data): Add regs_used field.
271         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
272         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
273         instead of loop_data->regs_used;
274         (free_loop_data): Do not free aux fields for loops.
275         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
276         and tree_ssa_iv_optimize_finalize.
277
278 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
279
280         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
281
282 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
283
284         PR target/26141
285         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
286         computing the effective result type.
287
288 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
289
290         PR inline-asm/16194
291         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
292         (tree_overlaps_hard_reg_set): Declare.
293         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
294         type and signature to match function type expected by walk_tree.
295         (tree_overlaps_hard_reg_set): New function.
296         (decl_conflicts_with_clobbers_p): Rename to:
297         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
298         Use tree_overlaps_hard_reg_set.  Changed caller.
299         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
300         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
301         * cris.c (cris_md_asm_clobbers): Likewise.
302
303 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
304
305         * reload1.c (emit_input_reload_insns): Delete code that tries to
306         inherit using find_equiv_reg.
307
308 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
309
310         * c-common.h (flag_const_strings): Don't declare.
311         * c-common.c (flag_const_strings): Remove.
312         * c.opt (fconst_strings): Remove.
313         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
314         <OPT_Wwrite_strings>: Don't set flag_const_strings.
315         (c_common_init_options): Don't set flag_const_strings.
316         * doc/invoke.texi (-fno-const-strings): Remove documentation.
317
318 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
319
320         * arm.md (tlobits_cbranch): New pattern.
321         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
322         testing a single bit.
323
324 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
325
326         PR tree-opt/26179
327         * tree-ssa-pre.c (create_component_ref_by_pieces):
328         Handle RETURN_DECL like VAR_DECL.
329
330 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
331
332         PR middle-end/26134
333         * fold-const.c (fold_indirect_ref_1): Fold 
334         "*(foo *)&complexfoo" to "__real__ complexfoo"
335         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
336
337 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
338
339         * tree-flow-inline.h (var_can_have_subvars): 
340         Volatile variables should not have subvariables.
341
342 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
343
344         PR 26180
345         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
346         multiplying unsigned values.
347         Tidy comments.
348
349 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
350
351         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
352
353 2006-02-08  Jason Merrill  <jason@redhat.com>
354
355         PR c++/25979
356         * tree.def: Elaborate on difference from MODIFY_EXPR.
357         * doc/c-tree.texi (INIT_EXPR): Likewise.
358         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
359         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
360         (gimplify_target_expr): Likewise.
361         (gimplify_cond_expr): Remove target handling.
362         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
363         (gimplify_expr): Clobber it here.
364         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
365         Do return slot optimization if we have an INIT_EXPR.
366
367         PR tree-opt/24365
368         * tree-inline.c (declare_return_variable): Also clear 
369         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
370
371         PR c++/16405
372         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
373
374         PR middle-end/22439
375         * gimplify.c (gimplify_one_sizepos): Fix typo.
376
377 2006-02-08  Jeff Law  <law@redhat.com>
378
379         PR tree-optimization/21417
380         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
381         across a backedge if the control statement at the end of the
382         block is data dependent on other statements in the same block.
383         (record_temporary_equivalences_from_stmts): Remove over-conservative
384         test for threading across backedges.
385
386         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
387         control statement, handle all three special cases in the same
388         manner as they all have the same desired solution.  No longer
389         special case edge flag updating when the post dominator is
390         the exit block.
391
392 2006-02-08  Roger Sayle  <roger@eyesopen.com>
393
394         * tree.def (CHAR_TYPE): Remove.
395         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
396         * dwarf2out.c (base_type_die, is_base_type): Likewise.
397         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
398         (gen_string_type_die): Delete unreachable function.
399
400         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
401         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
402         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
403         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
404         * builtins.c (type_to_class): Likewise.
405         * fold-const.c (fold_convert, build_range_check,
406         merge_ranges): Likewise.
407         * expr.c (count_type_elements): Likewise.
408         * c-pretty-print.c (pp_c_type_specifier): Likewise.
409         * stor-layout.c (layout_type): Likewise.
410         * ipa-type-escape.c (type_to_consider): Likewise.
411         * gimplify.c (omp_firstprivatize_type_sizes,
412         gimplify_type_sizes): Likewise.
413         * explow.c (promote_mode): Likewise.
414         * tree-sra.c (is_sra_scalar_type): Likewise.
415         * varasm.c (output_constant): Likewise.
416         * tree-inline.c (remap_type_1): Likewise.
417         * convert.c (convert_to_pointer, convert_to_real,
418         convert_to_integer, convert_to_complex): Likewise.
419
420 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
421
422         * df-scan.c (df_def_record_1): A set destination may
423         be a parallel regardless of mode.
424
425 2006-02-08  Roger Sayle  <roger@eyesopen.com>
426
427         PR target/22209
428         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
429         * config/mips/_tilib.c: Remove.
430         * config/fixtfdi.c: New libgcc source file.
431         * config/fixunstfdi.c: New source file.
432         * config/floatditf.c: New source file.
433         * config/floatunditf.c: New souce file.
434         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
435         files above instead of config/mips/_tilib.c.
436         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
437
438 2006-02-08  Jeff Law  <law@redhat.com>
439
440         PR tree-optimization/26169
441         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
442         threading jumps.
443
444 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
445
446         * df.h (DF_REG_SIZE): Return the length of the initialized
447         part of the array.
448
449 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
450
451         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
452         __muldf3): Return a correctly signed zero.
453
454 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
455
456         * passes.c (register_one_dump_file): Accept the current properties
457         instead of pass number.  Adjust call to dump_register.  Remove
458         duplicated code.
459         (register_dump_files): Now a wrapper around...
460         (register_dump_files_1): ... this one.  Do not modify the pass
461         structure.
462         (next_pass_1): Cosmetic fix.
463         (execute_todo): Keep second parameter only.  Use curr_properties
464         instead of fetching it from the pass structure.  Check and set
465         last_verified.
466         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
467         instead of fetching it from the pass structure.  Fix calls to
468         execute_todo.  Update curr_properties and initialize .vcg RTL dump
469         after running the pass.  Reset last_verified.
470         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
471         at the beginning.
472         (FIRST_AUTO_NUMBERED_DUMP): New.
473         (dump_register): Remove "num" parameter, assign it within the
474         function.
475         (get_dump_file_name): Modify template for dumps.
476         * tree-dump.h (dump_register): Adjust prototype.
477         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
478         (PROP_trees): Add PROP_gimple_lomp.
479         (TODO_set_props): New.
480         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
481         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
482         * cfgexpand.c (pass_expand): Destroy PROP_trees.
483
484 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
485
486         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
487         (sparc64-*-linux*): Likewise.
488         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
489         * config/sparc/t-linux: New file.
490         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
491         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
492         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
493         -m32 -mlong-double-128.
494
495         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
496         * config/alpha/t-linux: New file.
497         * config/alpha/libgcc-alpha-ldbl.ver: New file.
498
499         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
500         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
501         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
502         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
503         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
504         (CPP_ARCH32_SPEC): Remove.
505
506 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
507
508         PR tree-optimization/26145
509         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
510         bbs pointer.
511
512 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
513
514         PR target/26109
515         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
516         >= 240000 when generating code for SOM runtime.
517         (output_indirect_call): Don't use "b,l" instruction for indirect calls
518         to $$dyncall when generating code for SOM runtime..
519
520 2006-02-07  Dirk Mueller  <dmueller@suse.com>
521
522         PR c++/18150
523         * doc/invoke.texi (-Wsequence-point): Update documentation
524         that -Wsequence-point is implemented for C++ as well.
525
526 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
527
528         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
529         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
530         (LIB_SPEC): Likewise.
531         * doc/invoke.texi (SPARC options): Document -pthread.
532
533 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
534
535         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
536         PIC addresses.
537
538 2006-02-07  Roger Sayle  <roger@eyesopen.com>
539
540         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
541         Correct comment describing BOOLEAN_TYPE.
542
543 2006-02-07  Dirk Mueller  <dmueller@suse.com>
544
545         * c.opt: C++ frontend supports -Wdiv-by-zero.
546         * c-opts.c (c_common_handle_option): Remove dead case.
547
548 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
549
550         * configure.ac (TLS assembler check): Do not enable TLS by
551         default on SPARC/Solaris before version 10.
552         * configure: Regenerate.
553
554 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
555
556         * doc/invoke.texi (xl-compat): Document conversion and support
557         routine names.
558
559 2006-02-07  Jeff Law  <law@redhat.com>
560
561         * tree-vrp.c (find_conditional_asserts): Update comments.
562         (simplify_stmt_for_jump_threading): New.
563         (identify_jump_threads, finalize_jump_threads): New.
564         (vrp_finalize): Call identify_jump_threads.
565         (execute_vrp): Call finalize_jump_threads.
566         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
567         (vrp_element, vrp_data, vrp_element_p): Remove.
568         (vrp_hash_elt, vrp_variables_stack): Remove.
569         (vrp_hash, vrp_eq, record_range): Remove.
570         (simplify_cond_and_lookup_avail_expr): Remove.
571         (extract_range_from_cond): Remove.
572         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
573         (simplify_stmt_for_jump_threading): New.
574         (dom_thread_across_edge): New wrapper.
575         (tree_ssa_dominator_optimize): No longer initialize or
576         finalize any of the VRP datastructures.  Remove iteration
577         step and simplify as a result of removal of iteration step.
578         (pass_dominator): Perform a cfg cleanup after DOM.
579         (dom_opt_finalize_block): Use the new common routines
580         for threading jumps.  Simplify stack management slightly.
581         No longer need to unwind VRP state.
582         (record_equivalences_from_incoming_edge): No longer record
583         VRP information.
584         (eliminate_redundant_computations): No longer call
585         simplify_cond_and_lookup_avail_expr.
586         * tree-flow.h (potentially_threadable_block): Prototype.
587         (thread_across_edge): Likewise.
588         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
589         (tree-ssa-threadedge.o): Add dependencies.
590         * tree-ssa-threadedge.c: New file.
591         * passes.c (init_optimization_passes): Merge PHIs before
592         calling VRP.  Run VRP again late in the SSA optimization pipeline.
593
594 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
595
596         * df-core.c (df_set_blocks): Do not dereference function pointers.
597         (df_finish1): Likewise.
598         (df_hybrid_search_forward): Likewise.
599         (df_hybrid_search_backward): Likewise.
600         (df_iterative_dataflow): Likewise.
601         (df_analyze_problem): Likewise.
602         (df_compact_blocks): Likewise.
603         (df_dump): Likewise.
604         * df-scan.c (df_rescan_blocks): Likewise.
605         (df_record_entry_block_defs): Likewise.
606
607         * genconditions.c (write_conditions): Guard the definition of
608         'insn_conditions' with the check on GCC version.
609         (write_writer): Guard the traversal 'insn_conditions' with
610         the check on GCC version.
611
612 2006-02-07  Richard Guenther  <rguenther@suse.de>
613
614         PR c++/26140
615         Revert
616         2006-01-30  Richard Guenther  <rguenther@suse.de>
617         PR c++/23372
618         * gimplify.c (gimplify_target_expr): Handle easy cases
619         without creating a temporary.
620
621 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
622
623         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
624         use of float in probability computations.  Use edge probabilities
625         in place of statically computed probabilities.
626         (min_spec_prob): New static variable.
627         (schedule_insns): Initialize it.
628         (GET_SRC_PROB): Removed.
629         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
630
631 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
632
633         PR debug/24444
634         * config/ia64/unwind-ia64.c: Revert last change.
635         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
636         (INCOMING_FRAME_SP_OFFSET): Define.
637
638 2006-02-06  Roger Sayle  <roger@eyesopen.com>
639
640         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
641
642 2006-02-07  Ben Elliston  <bje@au.ibm.com>
643
644         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
645         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
646         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
647         (ix86_return_in_memory): Handle TDmode.
648         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
649         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
650
651 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
652
653         * reorg.c (dbr_schedule): Use dump_file instead of file.
654
655 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
656
657         PR target/25917
658         * config/ia64/predicates.md (extr_len_operand): New predicate.
659         * config/ia64/ia64.md (extv): Tighten constraints.
660         (extzv): Ditto.
661         (*tbit_and_2): Ditto.
662         (*tbit_and_3): Ditto.
663         (*tbit_or_2): Ditto.
664         (*tbit_or_3): Ditto.
665         (*bit_zero): Ditto.
666         (*bit_one): Ditto.
667
668 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
669
670         PR target/23359
671         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
672
673 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
674
675         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
676         loop_optimizer_init and loop_optimizer_finalize
677         * tree-ssa-sink.c (execute_sink_code): Ditto.
678         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
679         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
680         tree_ssa_loop_done): Ditto.
681         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
682         * sched-ebb.c: Include output.h.
683         (schedule_ebbs): Do not use dump argument.
684         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
685         * loop.c (loop_dump_stream): Removed.
686         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
687         argument.
688         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
689         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
690         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
691         loop_iterations, strength_reduce, record_biv, record_giv,
692         final_giv_value, check_final_value, check_ext_dependent_givs,
693         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
694         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
695         dump_file instead of loop_dump_stream.
696         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
697         argument dump_file.
698         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
699         dump argument.
700         * flow.c (life_analysis, rest_of_handle_life): Ditto.
701         * haifa-sched.c: Include output.h
702         (schedule_insns, sched_init): Do not use dump argument.
703         * mode-switching.c (optimize_mode_switching): Ditto.
704         * modulo-sched.c (stats_file): Removed.
705         (print_node_sched_params): Do not call argument dump_file.
706         (sms_schedule_by_order, loop_canon_p, sms_schedule,
707         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
708         of stats_file.
709         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
710         use dump argument.
711         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
712         rtl_loop_init, rtl_loop_done): Ditto.
713         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
714         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
715         Ditto.
716         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
717         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
718         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
719         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
720         * emit-rtl.c (renumber_insns): Ditto.
721         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
722         expand_gimple_basic_block, tree_expand_cfg): Ditto.
723         * regclass.c (regclass): Ditto.
724         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
725         remove_ssa_form, rewrite_out_of_ssa): Ditto.
726         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
727         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
728         Ditto.
729         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
730         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
731         to regclass.
732         * gcse.c (gcse_file, debug_stderr): Removed.
733         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
734         rest_of_handle_gcse): Do not use dump argument.
735         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
736         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
737         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
738         compute_code_hoist_vbeinout, compute_code_hoist_data,
739         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
740         compute_store_table, build_store_vectors, insert_insn_start_bb,
741         insert_store, remove_reachable_equiv_notes, replace_store_insn,
742         store_motion): Use dump_file instead of gcse_file.
743         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
744         * profile.c (profile_dump_file): Removed.
745         (branch_prob): Use dump_file instead of profile_dump_file.
746         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
747         dump_file.
748         * tree-ssa-copy.c (dump_copy_of): Ditto.
749         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
750         dump file to life_analysis.
751         * bt-load.c (branch_target_load_optimize): Ditto.
752         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
753         renumber_insns.
754         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
755         regclass, dbr_schedule): Declaration changed.
756         * sched-int.h (sched_init): Declaration changed.
757         * tree-profile.c (tree_profile_dump_file): Removed.
758         (tree_profile_hooks): Removed profile_dump_file hook.
759         * rtl-profile (rtl_profile_dump_file): Removed.
760         (rtl_profile_hooks): emoved profile_dump_file hook.
761         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
762         changed.
763         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
764         * tree-cfg.c (build_tree_cfg): Ditto.
765         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
766         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
767         Declaration changed.
768         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
769         life_analysis and schedule_insns.
770         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
771         life_analysis.
772         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
773         dbr_schedule.
774         * config/mips/mips.c (mips_reorg): Ditto.
775         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
776         schedule_ebbs.
777
778 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
779
780         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
781         (s390_mangle_fundamental_type): New.
782         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
783         Define.
784
785         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
786         (alpha_mangle_fundamental_type): New.
787         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
788         Define.
789
790         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
791         Define.
792         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
793         Define.
794         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
795         (sparc_mangle_fundamental_type): New.
796
797 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
798
799         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
800         (s390x-*-linux*): Likewise.
801         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
802         * config/s390/t-linux: New file.
803
804 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
805
806         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
807         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
808
809 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
810
811         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
812         (ANTIC_SAFE_LOADS): New macro.
813         (find_or_generate_expression): Add prototype.
814         (set_contains_value): Allow null set for sake of not always having
815         to allocate ANTIC_SAFE_LOADS.
816         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
817         Allow COMPONENT_REF too.
818         (valid_in_set): Allow COMPONENT_REF.
819         Check ANTIC_SAFE_LOADS too.
820         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
821         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
822         rename.
823         (can_PRE_operation): Add COMPONENT_REF.
824         (create_component_ref_by_pieces): New function.
825         (create_expression_by_pieces): Use create_component_ref_by_pieces.
826         (insert_aux): Move AGGREGATE_TYPE_P check here.
827         (compute_avail): Set bb local stmt uids.
828         (pass_pre): Use TODO_update_ssa_only_virtuals.
829         
830 2006-02-06  Ben Elliston  <bje@au.ibm.com>
831
832         * configure.ac: Unconditionally disable decimal float by default.
833         * configure: Regenerate.
834
835 2006-02-06  Ben Elliston  <bje@au.ibm.com>
836
837         * read-rtl.c (read_name): Terminate reading on EOF.
838
839 2006-02-06  Ben Elliston  <bje@au.ibm.com>
840
841         * dfp.c (decimal_real_arithmetic): Change second argument type
842         from int to enum tree_code. Do not always return true, but now
843         return result of any call to decimal_do helper functions.
844         * dfp.h (decimal_real_arithmetic): Update prototype.
845
846 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
847
848         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
849
850 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
851
852         PR tree-opt/25251
853         * tree-cfg.c (cleanup_dead_labels): Also don't remove
854         forced labels.
855
856 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
857
858         * tree-vrp.c (cfg_loops): Removed.
859         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
860         Use current_loops instead of cfg_loops.  Pass flags to
861         loop_optimizer_init.
862         * cfgloopmanip.c (fix_loop_structure): Update only available
863         information.
864         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
865         loop_optimizer_init.
866         * modulo-sched.c (build_loops_structure): Removed.
867         (sms_schedule): Use loop_optimizer_init.
868         * loop-init.c (loop_optimizer_init): Use flags to determine
869         which properties of loops to prepare.
870         (rtl_loop_init): Pass flags to loop_optimizer_init.
871         * tree-ssa-sink.c (execute_sink_code): Ditto.
872         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
873         * tree-ssa-pre.c (init_pre): Ditto.
874         * cfgloop.h (LOOPS_NORMAL): New.
875         (loop_optimizer_init): Declaration changed.
876
877 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
878
879         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
880         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
881         pa/t-pa.
882         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
883         pa/t-pa.
884         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
885         pa/x-ada.
886         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
887         * pa/t-pa64: Delete quadlib.c rule.
888         * pa/x-ada: Revert last change.
889         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
890
891 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
892
893         PR rtl-optimization/26087
894         * rtlanal.c (canonicalize_condition): Do not cross basic block
895         boundaries.
896
897 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
898
899         PR debug/24444
900         * config/ia64/ia64.c: Include debug.h.
901         (MAX_ARTIFICIAL_LABEL_BYTES): New.
902         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
903         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
904         (process_epilogue, process_set, process_for_unwind_directive):
905         Output unwind info only if requested.  Add CFA info if requested.
906         Add new arguments as needed.  Adjust callers.
907         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
908         incorrect default.
909         (DWARF2_FRAME_INFO): Define to zero.
910         * config/ia64/unwind-ia64.c: Remove code that compensated for
911         the CFA offset error fixed above.
912         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
913         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
914         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
915         -funwind-tables and -fexceptions to enable frame info.
916         (dwarf2out_frame_init): Define initial CFA even if
917         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
918         DWARF2_UNWIND_INFO is nonzero, not just defined.
919         (dwarf2out_frame_finish): Output non-EH call frame info only
920         if DWARF2_FRAME_INFO is nonzero.
921         (convert_cfa_to_loc_list,
922         compute_frame_pointer_to_cfa_displacement): Define even if
923         unwind info is not supported.
924         (gen_subprogram_die): Use the above unconditionally.  Remove
925         legacy alternate code.
926         * toplev.c (compile_file): Compile in call to
927         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
928         (lang_dependent_init): Ditto for dwarf2out_frame_init.
929
930 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
931             Jakub Jelinek  <jakub@redhat.com>
932
933         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
934         IBM extended float format long double as "g" on powerpc*-linux.
935
936 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
937
938         PR target/25926
939         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
940         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
941
942 2006-02-03  Jason Merrill  <jason@redhat.com>
943
944         PR c++/25979
945         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
946
947         PR middle-end/25977
948         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
949         on the return slot if it's an NRV.
950
951 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
952
953         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
954         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
955         rewrite_use): Do not handle USE_OUTER.
956         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
957         add_iv_outer_candidates, may_replace_final_value,
958         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
959         (find_interesting_uses_op): Functionality of
960         find_interesting_uses_outer_or_nonlin moved here.
961         (find_interesting_uses_outside): Use find_interesting_uses_op.
962
963 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
964
965         PR target/25960
966         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
967
968 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
969             Ulrich Weigand  <uweigand@de.ibm.com>
970
971         PR target/25864
972         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
973         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
974         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
975         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr 
976         and dxr fields.
977         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
978         (s390_rtx_costs): Use the new fields to calculate rtx costs.
979         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
980         Define secondary reloads for TFmode moves.
981         (constant_modes): Add TFmode.
982         (NR_C_MODES): Set to 8.
983         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
984         builtin define.
985         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
986         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
987         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS, 
988         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
989         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf, 
990         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
991         (FPR mode macro): Add TFmode.
992         (DSF mode macro): New.
993         (<de>, <dee> mode attributes): Removed.
994         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
995         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs", 
996         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee", 
997         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3", 
998         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm", 
999         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly", 
1000         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
1001         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc", 
1002         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm", 
1003         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
1004         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly", 
1005         "*negabs<mode>2", "sqrt<mode>2"):
1006         Changed <de> to <xde>. R constraint replaced by <Rf>.
1007         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by 
1008         <Rf>.
1009         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
1010         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
1011         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5 
1012         splitters.
1013         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2", 
1014         "extenddftf2", "extendsftf2"): New expanders.
1015         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee", 
1016         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
1017         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
1018         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
1019         New options.
1020         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
1021         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2, 
1022         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
1023         __floatditf): Add a GCC_4.1.0 symbol version tag.
1024         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
1025         the new options.
1026
1027 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
1028
1029         PR target/25377
1030         * config/i386/i386.c (ix86_function_ok_for_sibcall):
1031         Use targetm.binds_local_p instead of TREE_PUBLIC.
1032
1033 2006-02-02  Roger Sayle  <roger@eyesopen.com>
1034
1035         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
1036         on INTEGER_TYPEs to indicate that it denotes a character type.
1037         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
1038         signed_char_type_node, unsigned_char_type_node and char_type_node.
1039         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
1040         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
1041         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
1042
1043 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
1044             Daniel Berlin  <dberlin@dberlin.org>
1045
1046         * tree-tailcall.c (arg_needs_copy_p): New function.
1047         (eliminate_tail_call): Use arg_needs_copy_p.
1048         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
1049         (add_virtual_phis): New function.
1050
1051 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
1052
1053         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
1054         #ignore instead of #scratch for %g7 .register directive.
1055
1056 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
1057
1058         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
1059         object files.
1060
1061 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
1062
1063         * flow.c (calculate_global_regs_live): Assert that there aren't any
1064         EDGE_FAKE edges.
1065
1066 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
1067
1068         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
1069         what its name says.
1070         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
1071         bsi_after_labels iterator.
1072         * tree-if-conv.c (find_phi_replacement_condition,
1073         replace_phi_with_cond_modify_expr): Likewise.
1074         * tree-scalar-evolution.c (scev_const_prop): Likewise.
1075         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
1076
1077 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1078
1079         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
1080
1081 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
1082
1083         PR 25990
1084         * tree-cfg.c (move_block_to_fn): Clear out the basic block
1085         array after growing it.
1086
1087 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1088
1089         PR middle-end/24901
1090         * fold-const.c (fold_checksum_tree): Change type of buf.
1091
1092 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
1093
1094         * reload.c (push_secondary_reload): Initialize t_icode.
1095
1096 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
1097
1098         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
1099         -msoft-float -mlong-double-128 only issue a warning, but don't
1100         swich to DFmode long double.
1101
1102 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
1103
1104         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
1105         has a constant equivalent, iterate over equivalents for arg0,
1106         calling simplify_relational_operation and if there's a result
1107         cheaper than X, apply fold_rtx and return the result.
1108
1109 2006-02-01  Jan Hubicka  <jh@suse.cz>
1110
1111         * opts.c (no_unit_at_a_time_default): New global variable.
1112         (decode_options): Use it.
1113         * opts.h (no_unit_at_a_time_default): Declare.
1114
1115 2006-02-01  Paul Brook  <paul@codesourcery.com>
1116
1117         * function.c (assign_parm_setup_reg): Use function argument promotion
1118         rules.
1119         * expr.c (expand_expr_real_1): Use function argument promotion rules
1120         for PARM_DECLs.
1121
1122 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
1123
1124         * gcc.c (process_command): Change j to 'unsigned int'.
1125
1126 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1127
1128         PR middle-end/26001
1129         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
1130         Use the corrected index for the character
1131         out of the string constant.
1132
1133 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1134
1135         * mode-switching.c (optimize_mode_switching): Fix size
1136         allocated for bb_info[n_entities].
1137
1138 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
1139
1140         * gcc.c (main): Correct type that is allocated for
1141         explicit_link_files.
1142
1143 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
1144
1145         * config/s390/s390.c (init_alignment_context): Set
1146         ALIAS_SET_MEMORY_BARRIER on the MEM.
1147         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
1148
1149 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
1150
1151         PR middle-end/25933
1152         * loop-unroll.c (unroll_loop_runtime_iterations): Free
1153         dom_bbs pointer.
1154         * tree-ssa-live.c (type_var_init): Allocate bitmap after
1155         call to tpa_init.
1156
1157 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
1158
1159         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
1160         * regrename.c: Ditto.
1161         * tree-ssa-loop-im.c: Ditto.
1162         * tree-dump.c: Ditto.
1163         * tree-complex.c: Ditto.
1164         * genrecog.c: Ditto.
1165         * tree-ssa-threadupdate.c: Ditto.
1166         * tracer.c: Ditto.
1167         * java/class.c: Ditto.
1168         * java/jcf-parse.c: Ditto.
1169         * java/resource.c: Ditto.
1170         * java/except.c: Ditto.
1171         * java/jvspec.c: Ditto.
1172         * java/jcf-write.c: Ditto.
1173         * java/jcf-path.c: Ditto.
1174         * java/gjavah.c: Ditto.
1175         * java/zextract.c: Ditto.
1176         * java/jcf-io.c: Ditto.
1177         * java/jcf.h: Ditto.
1178         * java/buffer.c: Ditto.
1179         * java/lang.c: Ditto.
1180         * java/parse-scan.y: Ditto.
1181         * java/lex.c: Ditto.
1182         * java/lex.h: Ditto.
1183         * cfgloopmanip.c: Ditto.
1184         * postreload-gcse.c: Ditto.
1185         * tree-ssa-loop-manip.c: Ditto.
1186         * postreload.c: Ditto.
1187         * tree-ssa-loop-ch.c: Ditto.
1188         * loop.c: Ditto.
1189         * ipa-cp.c: Ditto.
1190         * cppspec.c: Ditto.
1191         * diagnostic.c: Ditto.
1192         * final.c: Ditto.
1193         * genoutput.c: Ditto.
1194         * gcc.c: Ditto.
1195         * cfghooks.c: Ditto.
1196         * cfgloopanal.c: Ditto.
1197         * objc/objc-act.c: Ditto.
1198         * gcov.c: Ditto.
1199         * genextract.c: Ditto.
1200         * genautomata.c: Ditto.
1201         * pretty-print.c: Ditto.
1202         * genemit.c: Ditto.
1203         * cgraphunit.c: Ditto.
1204         * flow.c: Ditto.
1205         * df-scan.c: Ditto.
1206         * haifa-sched.c: Ditto.
1207         * dominance.c: Ditto.
1208         * dbxout.c: Ditto.
1209         * tree-ssa-loop-ivopts.c: Ditto.
1210         * df-core.c: Ditto.
1211         * mode-switching.c: Ditto.
1212         * modulo-sched.c: Ditto.
1213         * graph.c: Ditto.
1214         * ipa-pure-const.c: Ditto.
1215         * cse.c: Ditto.
1216         * fix-header.c: Ditto.
1217         * web.c: Ditto.
1218         * tree-stdarg.c: Ditto.
1219         * ipa-utils.c: Ditto.
1220         * loop-init.c: Ditto.
1221         * ipa-inline.c: Ditto.
1222         * cfganal.c: Ditto.
1223         * global.c: Ditto.
1224         * alloc-pool.c: Ditto.
1225         * dwarf2out.c: Ditto.
1226         * opts.c: Ditto.
1227         * genattrtab.c: Ditto.
1228         * tree-ssa-loop-ivcanon.c: Ditto.
1229         * predict.c: Ditto.
1230         * timevar.c: Ditto.
1231         * lcm.c: Ditto.
1232         * fortran/gfortranspec.c: Ditto.
1233         * regmove.c: Ditto.
1234         * local-alloc.c: Ditto.
1235         * langhooks.c: Ditto.
1236         * function.c: Ditto.
1237         * tree-vectorizer.c: Ditto.
1238         * gcse.c: Ditto.
1239         * ipa-type-escape.c: Ditto.
1240         * alias.c: Ditto.
1241         * tree-if-conv.c: Ditto.
1242         * profile.c: Ditto.
1243         * ipa.c: Ditto.
1244         * tree-data-ref.c: Ditto.
1245         * loop-unroll.c: Ditto.
1246         * treelang/treetree.c: Ditto.
1247         * calls.c: Ditto.
1248         * bt-load.c: Ditto.
1249         * ggc-common.c: Ditto.
1250         * except.c: Ditto.
1251         * coverage.c: Ditto.
1252         * cselib.c: Ditto.
1253         * tree-cfgcleanup.c: Ditto.
1254         * tree-ssa-pre.c: Ditto.
1255         * cfgcleanup.c: Ditto.
1256         * loop-invariant.c: Ditto.
1257         * loop-iv.c: Ditto.
1258         * ipa-prop.c: Ditto.
1259         * print-tree.c: Ditto.
1260         * conflict.c: Ditto.
1261         * ggc-page.c: Ditto.
1262         * sched-deps.c: Ditto.
1263         * regclass.c: Ditto.
1264         * tree-object-size.c: Ditto.
1265         * combine.c: Ditto.
1266         * bb-reorder.c: Ditto.
1267         * resource.c: Ditto.
1268         * var-tracking.c: Ditto.
1269         * cfgloop.c: Ditto.
1270         * df-problems.c: Ditto.
1271         * reg-stack.c: Ditto.
1272         * tlink.c: Ditto.
1273         * gccspec.c: Ditto.
1274         * sched-rgn.c: Ditto.
1275         * tree-ssa-structalias.c: Ditto.
1276         * tree-ssa-reassoc.c: Ditto.
1277         * config/darwin-c.c: Ditto.
1278         * config/darwin.c: Ditto.
1279         * config/arm/arm.c: Ditto.
1280         * cfgrtl.c: Ditto.
1281         * collect2.c: Ditto.
1282         * reload1.c: Ditto.
1283
1284 2006-01-31  Nicolas Pitre  <nico@cam.org>
1285
1286         * arm.md (smaxsi3): Make aware of smax_m1.
1287         (smax_m1): New.
1288
1289 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
1290
1291         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
1292
1293 2006-01-31  Richard Guenther  <rguenther@suse.de>
1294
1295         * doc/invoke.texi (-msselibm): Document.
1296         * target.h (expand_library_builtin): New target hook.
1297         * builtins.c (expand_builtin): Use expand_library_builtin.
1298         (default_expand_library_builtin): New function.
1299         * gcc.c (LINK_GCC_MATH_SPEC): Define.
1300         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
1301         (link_gcc_math_spec): Declare.
1302         (static_specs): Add link_gcc_math_spec.
1303         * expr.h (default_expand_library_builtin): Declare.
1304         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
1305         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
1306         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
1307         * config/i386/i386.opt (msselibm): New target option.
1308         * config/i386/i386.c (ix86_builtin_function_variants): New array.
1309         (ix86_init_sse_abi_builtins): New function.
1310         (ix86_expand_library_builtin): Likewise.
1311         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
1312         (override_options): Handle error conditions wrt -msselibm.
1313         (ix86_builtins): Add function codes for SSE2 ABI builtins.
1314         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
1315         * doc/extend.texi (__builtin_sse2_*): Document new target specific
1316         builtins.
1317
1318 2006-01-31  Richard Guenther  <rguenther@suse.de>
1319         Paolo Bonzini  <bonzini@gnu.org>
1320
1321         * doc/install.texi (--disable-libgcc-math): Document.
1322
1323 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
1324
1325         * expr.h (expand_normal): new inline function.
1326         * builtins.c: use it, use EXPAND_NORMAL explicitely.
1327         * dojump.c: use it.
1328         * dwarf2out.c: use it.
1329         * expr.c: use it.
1330         * calls.c: use it.
1331         * expmed.c: use it.
1332         * except.c: use it.
1333         * config/sparc/sparc.c: use it.
1334         * config/i386/i386.c: use it.
1335         * config/rs6000/rs6000.c: use it.
1336         * config/arm/arm.c: use it.
1337         * config/mips/mips.c: use it.
1338         * stmt.c: use it, use EXPAND_NORMAL explicitely.
1339
1340 2006-01-30  Roger Sayle  <roger@eyesopen.com>
1341
1342         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
1343         argv to the appropriate type.
1344
1345 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
1346
1347         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
1348         unreachable code.
1349
1350 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
1351
1352         PR target/26018
1353         * config/s390/s390.c (struct machine_function): New flag
1354         decomposed_literal_pool_addresses_ok_p.
1355         (s390_reorg): Set it before final stage of literal pool transforms.
1356         (s390_decompose_address): Only accept displacements of the form
1357         (minus (label_ref ...) (label_ref ...)) if that flag is set.
1358
1359 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
1360
1361         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
1362         the comparison routine return.
1363
1364 2006-01-30  Michael Matz  <matz@suse.de>
1365
1366         * global.c (find_reg): Only evict for global regs.
1367         Take n_refs into account and dump more info.
1368
1369 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
1370
1371         PR target/14798:
1372         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
1373         (pragma_trap, pragma_nosave_low_regs): Likewise.
1374         (current_function_anonymous_args): Likewise.
1375         (sh_deferred_function_attributes): New variable.
1376         (sh_deferred_function_attributes_tail): Likewise.
1377         (print_operand): For '@', look up trap_exit attribute.
1378         (calc_live_regs): Look up trapa_handler attribute.  For trapa
1379         handlers, save/restore fpscr, but don't do any other
1380         interrupt-specific saves.
1381         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
1382         Fix check for partially saved registers to check for SHmedia.
1383         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
1384         (sh_output_function_epilogue): Don't clear any of the removed
1385         variables.
1386         (sh_insert_attributes): Don't check pragma_interrupt.
1387         Insert deferred attributes.  Check that interrupt attribute is
1388         present for other attributes that require its presence.
1389         (sh_attribute_table): Add new attributes trapa_handler and
1390         nosave_low_regs.
1391         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
1392         Don't check for pragma_interrupt.  Don't store argument.
1393         * sh.h (pragma_interrupt, sp_switch): Don't declare.
1394         (sh_deferred_function_attributes): Declare.
1395         (sh_deferred_function_attributes_tail): Likewise.
1396         * sh.md (sp_switch_1): Add operand.  Change generator caller.
1397         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
1398         (*return_i): Don't use when trap_exit attribute is in effect.
1399         (*return_trapa): New insn pattern.
1400         * sh-c.c: New file.
1401         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
1402         setting c_target_objs and cxx_target_objs.
1403         * t-sh: Add rule for sh-c.o.
1404
1405 2006-01-30  Richard Guenther  <rguenther@suse.de>
1406
1407         PR c++/23372
1408         * gimplify.c (gimplify_target_expr): Handle easy cases
1409         without creating a temporary.
1410
1411 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
1412
1413         * vec.h (safe_grow): Remove duplicated line.
1414
1415 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
1416
1417         PR 25874
1418         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
1419         (expand_omp): ... here.
1420         (expand_omp_parallel): Only remove barriers for combined
1421         parallel+workshare constructs.
1422
1423 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
1424
1425         Revert
1426
1427         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
1428         * tree.c (build_qualified_type): Chain the new type to the original
1429         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
1430         a POINTER_TYPE or a REFERENCE_TYPE respectively.
1431         (build_pointer_type_for_mode): Only return unqualified types.
1432         (build_reference_type_for_mode): Likewise.
1433
1434 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
1435
1436         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
1437         * Makefile.in (CXX_COMPAT_WARN): Define.
1438         * configure: Regenerate.
1439
1440 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
1441
1442         PR tree-opt/25911
1443         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
1444         to an if check.
1445
1446 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1447
1448         * toplev.c: Fix thinko.
1449
1450 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
1451             Marcin Dalecki  <martin@dalecki.de>
1452
1453         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
1454         (push_srcloc): Use XNEW.
1455         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
1456
1457 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
1458
1459         * df-core.c (df_set_blocks): Deleted all variable.
1460
1461 2006-01-28  Ian Lance Taylor  <ian@airs.com>
1462
1463         * cgraphunit.c (cgraph_assemble_pending_functions): Call
1464         cgraph_output_pending_asms.
1465
1466 2006-01-28  Zack Weinberg  <zackw@panix.com>
1467
1468         * c.opt: Add -W(no-)overlength-strings.
1469         * doc/invoke.texi: Document it.
1470         * c-opts.c (c_common_handle_option): -pedantic implies
1471         -Woverlength-strings, if not explicitly disabled already.
1472         (c_common_post_options): -Woverlength-strings defaults to off, and
1473         is always off for C++.
1474         * c-common.c (fix_string_type): Issue warning about strings longer
1475         than is portable only if warn_overlength_strings.  Rearrange code
1476         a little for clarity.
1477         * configure.in: Check for -Wno-overlength-strings as well before
1478         enabling -pedantic in stage 1.
1479         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
1480         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
1481
1482         * genconditions.c (write_header, write_one_condition)
1483         (write_conditions, write_writer): Consolidate very long strings
1484         that were broken up to fit in C89 portable limit.  Don't use
1485         printf when fputs will do.
1486
1487 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
1488
1489         * combine.c (simplify_comparison <AND>): Check
1490         TRULY_NOOP_TRUNCATION before start using a subreg.
1491
1492         * config/mips/mips.md (*branch_zero<mode>,
1493         *branch_zero<mode>_inverted, *branch_equality<mode>,
1494         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
1495         Remove mode check from comparisons.
1496
1497 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
1498
1499         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
1500
1501 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
1502
1503         * expmed.c (const_mult_add_overflow_p): Remove.
1504         * expr.h: Remove the prototype for const_mult_add_overflow_p.
1505
1506         * recog.c (validate_replace_rtx_subexp): Remove.
1507         * recog.h: Remove the prototype for
1508         validate_replace_rtx_subexp.
1509
1510         * integrate.h: Remove the prototype for
1511         copy_decl_for_inlining.
1512         * rtl.h: Remove the prototype for mark_constant_function.
1513         * tree-vectorizer.h: Remove the prototype for
1514         vect_strip_conversion.
1515
1516         * modulo-sched.c (create_partial_schedule,
1517         free_partial_schedule, reset_partial_schedule): Make them
1518         static.
1519
1520         * hooks.c (hook_bool_rtx_int_false): Remove.
1521         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
1522
1523 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
1524
1525         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
1526         and -mlong-double-128 are incompatible.
1527         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
1528         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
1529         (TARGET_LIBGCC2_CFLAGS): Define.
1530         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
1531         (TARGET_LIBGCC2_CFLAGS): Same.
1532         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
1533
1534 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
1535
1536         PR c/19606.
1537         * c-typeck.c (build_binary_op): Perform implicit casts of
1538         operands before shortening them.
1539
1540         * cfgloopmanip.c (split_loop_bb): Remove.
1541         * cfgloop.h: Remove the prototype for split_loop_bb.
1542
1543         * cfgloop.c (flow_loop_outside_edge_p): Remove.
1544         * cfgloop.h: Remove the prototype for
1545         flow_loop_outside_edge_p.
1546
1547         * emit-rtl.c (init_virtual_regs): Make it static.
1548         * function.h: Remove the prototype for init_virtual_regs.
1549
1550         * recog.c (peephole2_optimize): Make it static.
1551         * recog.h: Remove the prototype for peephole2_optimize.
1552
1553 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
1554
1555         * df-scan.c (df_record_entry_block_defs): Check if
1556         INCOMING_RETURN_ADDR_RTX is defined.
1557
1558 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
1559             Kenneth Zadeck <zadeck@naturalbridge.com>
1560
1561         PR rtl-optimization/24762
1562         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
1563         * targhooks.c (hook_void_bitmap): New hook prototype.
1564         * targhoohs.h (hook_void_bitmap): Ditto.
1565         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
1566         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
1567         * target.h (live_on_entry): New function pointer.
1568         * df-scan.c (df_all_hard_regs): Removed.
1569         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
1570         (df_scan_free_internal): Added df->entry_block_defs.
1571         (df_scan_alloc): Ditto.
1572         (df_scan_dump): Ditto.
1573         (df_uses_record): Plumbed flag field properly thru calls.
1574         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
1575         This part fixes PR24762.
1576         (df_bb_refs_record): Added code to make the frame and arg
1577         pointers live in EH blocks.
1578         (df_refs_record): Added call to df_record_entry_block_defs.
1579         (df_record_entry_block_defs): New function.
1580         * df-core.c: Added comments to describe new artifical defs.
1581         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
1582         (entry_block_defs): New field in struct df.
1583         (df_all_hard_regs): Deleted.
1584         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
1585         * df-problems.c (df_ru_bb_local_compute_process_def):
1586         Added code to handle artifical defs in the entry to a function.
1587         (df_ru_bb_local_compute): Ditto.
1588         (df_rd_bb_local_compute_process_def):  Ditto.
1589         (df_rd_bb_local_compute): Ditto.
1590         (df_lr_bb_local_compute): Ditto.
1591         (df_ur_bb_local_compute): Ditto.
1592         (df_urec_bb_local_compute):  Ditto.
1593         (df_chain_create_bb):  Ditto.
1594         (df_ur_local_finalize): Removed entry.
1595         (df_urec_init): Ditto.
1596         (df_urec_local_finalize): Ditto.
1597         (df_ri_bb_compute): Added detection of last use of pseudos.
1598         * Makefile.in (df-scan.o): Updated dependencies.
1599         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
1600         * config/mips/mips.c (mips_set_live_on_entry): Added.
1601         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
1602         for target hook.
1603         * dce.c (marked_insn_p): Added code to handle artifical defs.
1604
1605 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
1606
1607         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
1608         intrinsic.
1609         (_mm_cvtsi128_si64): Likewise.
1610         (_mm_cvtsd_si64): Likewise.
1611         (_mm_cvttsd_si64): Likewise.
1612         (_mm_cvtsi64_sd): Likewise.
1613         (_mm_cvtsi64_si128): Likewise.
1614         * config/i386/mmintrin.h (_m_from_int64): Likewise.
1615         (_mm_cvtsi64_m64): Likewise.
1616         (_m_to_int64): Likewise.
1617         (_mm_cvtm64_si64): Likewise.
1618         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
1619         (_mm_cvttss_si64): Likewise.
1620         (_mm_cvtsi64_ss): Likewise.
1621         (_mm_cvtss_f32): Likewise.
1622
1623 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
1624
1625         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
1626         for pragma redefine_extname.
1627
1628 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
1629
1630         PR target/25864
1631         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
1632         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
1633         -mno-minimal-toc to previous content.
1634         (bispecs): Remove goal.
1635         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
1636         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
1637         compatibility aliases on powerpc-*-*gnu*.
1638         * config/rs6000/libgcc-ppc-glibc.ver: New file.
1639         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
1640         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
1641         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
1642         (ldblspecs): New goal.
1643         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
1644         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
1645         _df_to_tf.
1646         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
1647         L_sf_to_tf or L_df_to_tf is defined.
1648
1649 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
1650             Alan Modra  <amodra@bigpond.net.au>
1651
1652         PR target/25864
1653         * config/rs6000/linux.h (POWERPC_LINUX): Define.
1654         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
1655         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
1656         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
1657         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
1658         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
1659         (rs6000_override_options): Initialize rs6000_ieeequad.
1660         Initialize TFmode format to ibm_extended_format if not
1661         TARGET_IEEEQUAD.
1662         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
1663         ieeelongdouble.
1664         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
1665         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
1666         (function_arg_advance): IBM long double passed in two FPRs, not
1667         split.
1668         (function_arg): IBM long double passed in FPRs.
1669         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
1670         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
1671         Only multireg GPR aligned.
1672         (rs6000_init_libfuncs): Enable IBM long double functions if not
1673         IEEEQUAD.
1674         (rs6000_generate_compare): Use IBM long double compare if not
1675         TARGET_IEEEQUAD.
1676         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
1677         (TARGET_IEEEQUAD): Define.
1678         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
1679         not TARGET_IEEEQUAD.
1680         * config/rs6000/rs6000.md: Enable TFmode patterns if
1681         !TARGET_IEEEQUAD.
1682         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
1683         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
1684         and -mlong-double-128 are incompatible.
1685         * doc/invoke.texi (-mabi): Collect options together.  Add
1686         ibmlongdouble and ieeelongdouble.
1687
1688 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
1689
1690         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
1691         opaque type.
1692         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
1693         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
1694         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
1695         * rtl.h (rtunion_def): Remove rt_ptr.
1696         (X0PTR): Delete.
1697         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
1698         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
1699         * config/i386/winnt.c (i386_pe_mark_dllexport)
1700         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
1701
1702 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
1703
1704         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
1705
1706 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
1707
1708         PR other/24829
1709         PR target/24831
1710         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
1711         pthread_key_delete.  From John David Anglin.  gthrw-ify
1712         pthread_getunique_np only if it it's not a macro.  Delete
1713         UNUSED macro.
1714         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
1715         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
1716         __gthread_objc_condition_signal, __gthread_key_delete): Add
1717         "__attribute__ ((__unused__))" to unused arguments.
1718         (__gthread_recursive_mutex_init_function): Add missing return.
1719         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
1720         gthr-posix95.h: Use macro-based approach for name redirection
1721         on targets missing weakref.
1722
1723 2006-01-26  Zack Weinberg  <zackw@panix.com>
1724
1725         * genconditions.c (write_header): In generated code, #ifdef out
1726         all includes and fake declarations, except includes of bconfig.h
1727         and system.h, unless GCC_VERSION >= 3001.  Do not include
1728         gensupport.h in any case.
1729         (write_conditions): Generate a definition of struct c_test.  Add
1730         a comment to the generated #endif.
1731         (write_one_condition): Escape backslashes in string too.
1732         (write_writer): Generated code must escape backslashes and quote
1733         marks (but not newlines) in the strings it writes.
1734         * Makefile.in (build/gencondmd.o): Update dependencies.
1735
1736 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
1737
1738         PR target/25961
1739         * Makefile.in (insn-automata.o): Add header file dependencies.
1740         * genautomata.c: Add includes.
1741
1742 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
1743
1744         PR target/25961
1745         * Makefile.in (insn-automata.o): Add -Wno-error flag.
1746
1747 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
1748
1749         * configure.ac: Expect target tools paths to be passed from the toplevel
1750         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
1751         AS_SET_VAR_IF.
1752         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
1753
1754 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
1755
1756         PR c/25892
1757         * c.opt (Wpointer-sign): Init to -1.
1758         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
1759         OPT_pedantic, to 0 otherwise.
1760         * doc/invoke.texi: Update.
1761
1762 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
1763
1764         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
1765         constants provided by 80387 instructions in the destination mode.
1766
1767 2006-01-26  Richard Guenther  <rguenther@suse.de>
1768             Andrew Pinski  <pinskia@physics.uc.edu>
1769
1770         PR tree-opt/21470
1771         partial PR tree-opt/17064
1772         * tree-ssa-structalias.c (intra_create_variable_infos):
1773         Create heap variables for incoming parameters if
1774         flag_argument_noalias > 1.
1775         (find_what_p_points_to): Look through default defs of
1776         parameter decls.
1777
1778 2006-01-26  Jeff Law  <law@redhat.com>
1779
1780         PR ada/25900
1781         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
1782         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
1783         within the VR_RANGE, use the VR_RANGE as the result, not the
1784         VR_ANTI_RANGE.
1785         (adjust_range_with_scev): Reject ranges from SCEV which are out of
1786         bounds for the type.
1787
1788 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
1789
1790         * tree-ssa-alias.c (maybe_create_global_var): Change
1791         subvar walking to an assertion that we don't have subvar'd variables.
1792
1793 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
1794
1795         PR C/25861
1796         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
1797         Use a new variable, inner.  PARM_DECLs are always non-weak.
1798
1799 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
1800
1801         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
1802         --disable-checking.
1803
1804 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
1805
1806         * config/mips/mips.md (*clear_upper32): New combiner pattern.
1807
1808 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
1809
1810         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
1811         (smax_insn, smin_insn, smax_0, smin_0): New.
1812
1813 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
1814
1815         PR target/25947
1816         * config/cris/cris.c (cris_order_for_addsi3): New function.
1817         * config/cris/cris-protos.h: Prototype it.
1818         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
1819         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
1820         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
1821         (split for "op.S1 [rx=rx+i],ry (swapped)")
1822         (split for "op(s|u).S1 [rx=rx+i],ry")
1823         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
1824         Apply cris_order_for_addsi3 when generating addsi3 insns.
1825
1826 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
1827
1828         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
1829         (TREE_BLOCK): Add call to EXPR_CHECK.
1830
1831 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
1832
1833         PR 25886
1834         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
1835         * tree-pretty-print.c (dump_omp_clause): Extract from ...
1836         (dump_omp_clauses): ... here.
1837         (dump_generic_node): Handle OMP_CLAUSE.
1838         * tree.c (omp_clause_num_ops): New.
1839         (omp_clause_code_name): New.
1840         (tree_code_size): Handle OMP_CLAUSE.
1841         (tree_size): Likewise.
1842         (make_node): Document handling of OMP_CLAUSE.
1843         (tree_node_structure): Handle OMP_CLAUSE.
1844         (omp_clause_check_failed): New.
1845         (omp_clause_range_check_failed): New.
1846         (omp_clause_operand_check_failed): New.
1847         (build_omp_clause): New.
1848         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
1849         * tree.h (enum omp_clause_code): Declare.
1850         (OMP_CLAUSE_SUBCODE_CHECK): Define.
1851         (OMP_CLAUSE_RANGE_CHECK): Define.
1852         (OMP_CLAUSE_ELT_CHECK): Define.
1853         (omp_clause_check_failed): Declare.
1854         (omp_clause_operand_check_failed): Declare.
1855         (omp_clause_range_check_failed): Declare.
1856         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
1857         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
1858         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
1859         (OMP_CLAUSE_LASTPRIVATE): Likewise.
1860         (OMP_CLAUSE_IF_EXPR): Likewise.
1861         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
1862         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
1863         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
1864         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
1865         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
1866         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
1867         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
1868         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
1869         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
1870         (OMP_CLAUSE_CODE): Define.
1871         (OMP_CLAUSE_SET_CODE): Define.
1872         (OMP_CLAUSE_CODE): Define.
1873         (OMP_CLAUSE_OPERAND): Define.
1874         (struct tree_omp_clause): Declare.
1875         (union tree_node): Add field 'omp_clause'.
1876         * treestruct.def (TS_OMP_CLAUSE): Define.
1877         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
1878         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
1879         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
1880         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
1881         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
1882         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
1883         (OMP_CLAUSE): Define.
1884         * print-tree.c (print_node): Handle OMP_CLAUSE.
1885         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
1886         * c-typeck.c: Likewise.
1887         * gimplify.c: Likewise.
1888         * c-omp.c: Likewise.
1889         * tree-nested.c: Likewise.
1890         * tree-inline.c: Likewise.
1891         * c-parser.c: Likewise.
1892         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
1893         clauses.
1894
1895 2006-01-25  Roger Sayle  <roger@eyesopen.com>
1896
1897         PR rtl-optimization/25703
1898         * combine.c (try_combine): Handle zero_extract and strict_low_part
1899         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
1900
1901 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
1902
1903         * global.c: Fix comment typos.
1904
1905 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
1906
1907         PR target/25758
1908         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
1909         Use output_addr_const instead of assemble_name.
1910
1911 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
1912
1913         * Makefile.in (sched-vis.o): Update dependencies.
1914         * haifa-sched.c (sched_finish): Clear current_sched_info.
1915         * cfg.c (dump_bb_info): New, split from dump_flow_info.
1916         (dump_flow_info): Call it.
1917         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
1918         a slim RTL dump.
1919         * basic-block.h (dump_bb_info): Declare.
1920         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
1921         option, and apply options only for dump files whose TDF_RTL,
1922         TDF_TREE, or TDF_IPA bits match.
1923         * rtl.h: Declare new functions exported from sched-vis.c.
1924         * sched-vis.c: Enable also if scheduling is not used.
1925         (print_value): Print the mode of registers if not inside scheduling.
1926         (print_insn): Make it work outside the scheduler.  Beautify the output
1927         a bit.
1928         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
1929
1930 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
1931
1932         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
1933         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
1934         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
1935         depending on the value of CONSTANT_POOL_ADDRESS_P.
1936         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
1937         SYMBOL_REF_DECL.
1938         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
1939         rather than SYMBOL_REF_DECL.
1940         (rtx_constant_pool): Remove const_rtx_sym_htab.
1941         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
1942         (init_varasm_status): Don't initialize const_rtx_sym_htab.
1943         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
1944         Remove handling of const_rtx_sym_htab.
1945         (find_pool_constant): Delete.
1946         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
1947         rather than find_pool_constant.
1948         (get_pool_constant_for_function): Delete.
1949         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
1950         find_pool_constant.
1951         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
1952         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
1953         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
1954         (SYMBOL_REF_CONSTANT): New macro.
1955         (get_pool_constant_for_function): Delete.
1956         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
1957         rather than SYMBOL_REF_DECL.
1958         (i386_pe_mark_dllimport): Likewise.
1959         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
1960         rather than SYMBOL_REF_DECL.
1961         * config/darwin.c (machopic_indirect_data_reference): Likewise.
1962         (machopic_indirect_call_target): Likewise.
1963
1964 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
1965
1966         * flow.c (delete_noop_moves): Add missing EOL to dump message.
1967
1968 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
1969
1970         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
1971
1972 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
1973
1974         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
1975
1976 2006-01-24  David Daney  <ddaney@avtrex.com>
1977
1978         PR java/25816
1979         * configure.ac (enable_tls): New enable option.
1980         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
1981         * configure: Regenerate.
1982         * doc/install.texi (--enable-tls): Document new option.
1983         (--disable-tls): Ditto.
1984
1985 2006-01-24  Richard Henderson  <rth@redehat.com>
1986
1987         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
1988         * alias.c (true_dependence): Respect it.
1989         (canon_true_dependence, write_dependence_p): Likewise.
1990         * builtins.c (get_builtin_sync_mem): Set it.
1991
1992 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
1993
1994         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
1995         efficient way.
1996
1997 2006-01-24  DJ Delorie  <dj@redhat.com>
1998
1999         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
2000         for storing constants in single-bit bitfields.
2001
2002 2006-01-25  Ben Elliston  <bje@au.ibm.com>
2003
2004         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
2005
2006 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
2007
2008         PR tree-opt/25860
2009         * tree-ssa-pre.c (phi_translate): Return NULL
2010         for AGGREGATE_TYPE's.
2011
2012 2006-01-24  Zack Weinberg  <zackw@panix.com>
2013
2014         * genautomata.c (process_state_for_insn_equiv_partition):
2015         Use xcalloc for insn_arcs_array.
2016         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
2017         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
2018
2019 2006-01-24  Richard Henderson  <rth@redhat.com>
2020
2021         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
2022         update all callers.
2023
2024 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
2025
2026         PR rtl-optimization/25890
2027         PR rtl-optimization/25905
2028         * combine.c (expand_compound_operation, expand_field_assignment):
2029         Fail if the bitfield's final position is out of bounds.
2030
2031 2006-01-24  Ian Lance Taylor  <ian@airs.com>
2032
2033         PR middle-end/25930
2034         * cgraphunit.c (cgraph_output_in_order): Don't clear
2035         cgraph_asm_nodes until after asm strings have been output.
2036
2037 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
2038
2039         * fix-header.c (read_scan_file): Add new parameter imultilib when
2040         calling register_include_chains.
2041
2042 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
2043
2044         * omp-low.c: Update documentation.
2045
2046 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2047             Daniel Berlin  <dberlin@dberlin.org>
2048
2049         PR tree-opt/25315
2050         PR tree-opt/25857
2051         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
2052         return from the function.
2053
2054 2006-01-22  Zack Weinberg  <zackw@panix.com>
2055
2056         * rtl.def (match_code): Add second argument.
2057         * genpreds.c (write_extract_subexp): New function.
2058         (write_match_code): Add path argument.  Use write_extract_subexp.
2059         (write_predicate_expr): Pass path to write_match_code.
2060         (mark_mode_tests): MATCH_CODE applied to a subexpression does
2061         not perform a mode test.
2062         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
2063         a subexpression does not constrain the top-level code set.
2064         * read-rtl.c (read_rtx_variadic): New function.
2065         (read_rtx_1): Use it; allow AND and IOR to be variadic.
2066         * doc/md.texi: Document new notation.
2067         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
2068         (cmpsi_operand): ... here, using new notation.
2069
2070 2006-01-22  Zack Weinberg  <zackw@panix.com>
2071
2072         * varray.c: Remove GENERATOR_FILE #ifdefs.
2073
2074 2006-01-22  Zack Weinberg  <zackw@panix.com>
2075
2076         * genautomata.c (output_reserved_units_table): Emit nothing if
2077         description->query_units_num is zero.  Remove extra blank line.
2078         (output_cpu_unit_reservation_p): Short circuit
2079         if description->query_units_num is zero.
2080
2081 2006-01-22  Zack Weinberg  <zackw@panix.com>
2082
2083         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
2084         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
2085         nor any of the random handful of variables that used to be necessary
2086         when this program was linked with rtlanal.o.  Prune set of forward
2087         function declarations.
2088         (struct attr_desc): Remove static_p field.
2089         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
2090         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
2091         (attr_string): Do not read the character one past the length of
2092         the string.
2093         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
2094         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
2095         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
2096         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
2097         (make_automaton_attrs): New.
2098         (main): Do not call into genautomata.  Call local gen_bypass
2099         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
2100         Remove special case for insn_alts.
2101         * genautomata.c: Include gensupport.h; not genattrtab.h nor
2102         varray.h (leftover from previous change).  Prune set of forward
2103         function declarations.  Remove state_alts fields from all
2104         structures.  Remove state_alts_table from struct automaton.
2105         Make everything except main static.  Do not maintain num_dfa_decls.
2106         Do not maintain state_alts fields of various structures.
2107         (process_decls): Don't validate condexp for dm_insn_reserv decls.
2108         (add_arc): Remove state_alts argument.  All callers updated.
2109         (output_reserved_units_table): Emit #ifdef here...
2110         (output_tables): ...not here.  Don't generate state_alts tables.
2111         (expand_automata): Don't generate attributes.
2112         (write_automata): Don't generate state_alts functions.
2113         (main): New function.
2114         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
2115         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
2116         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
2117         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
2118         (BYPASS_P_FUNC_NAME, output_state_alts_table)
2119         (output_automata_list_state_alts_code, output_internal_state_alts_func)
2120         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
2121         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
2122         Delete.
2123         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
2124         * genattrtab.h: Delete file.
2125         * Makefile.in (OBJS-common): Add insn-automata.o.
2126         (insn-automata.o): New rule.
2127         (simple_generated_c): Add insn-automata.c.
2128         (build/genattrtab.o, build/genautomata.o): Update dependencies.
2129         (genprogmd): Add automata.
2130         (build/genattrtab): Needs no extra objects nor libraries.
2131         (build/genautomata): Needs build/vec.o and -lm.
2132
2133 2006-01-22  Zack Weinberg  <zackw@panix.com>
2134
2135         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
2136         (output_dfa_max_issue_rate, locked_states_num): Delete.
2137         (struct automaton): Add locked_states field.
2138         (output_dead_lock_vect): Save number of locked states in
2139         automaton->locked_states.  If it is zero, don't print anything.
2140         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
2141         (output_internal_dead_lock_func): Only test the dead_lock_vect
2142         for automata that have locked states.
2143         (output_statistics): Always print the number of locked states for
2144         each automaton.  Calculate total number of locked states here.
2145         (write_automata): Don't call output_dfa_max_issue_rate.
2146         * genattrtab.c: Define length_unit_log as a const variable.
2147         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
2148         max_insn_queue_index const.
2149         * final.c (length_unit_log): Declare const.
2150         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
2151
2152 2006-01-22  Zack Weinberg  <zackw@panix.com>
2153
2154         * genautomata.c:  Include vec.h, not varray.h.
2155         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
2156         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
2157         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
2158         VEC_* macros operating on appropriately typed vectors, or to
2159         malloced arrays when the size is known in advance.  Const-ify
2160         many char* variables and function arguments.  No functional changes.
2161         * Makefile.in (build/varray.o): Delete rule.
2162         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
2163         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
2164
2165 2006-01-22  Zack Weinberg  <zackw@panix.com>
2166
2167         * gensupport.c: Define get_insn_name and record_insn_name here.
2168         (read_md_rtx): Call record_insn_name as appropriate.
2169         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
2170         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
2171         * genpreds.c, genrecog.c: Don't define get_insn_name nor
2172         record_insn_name.
2173         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
2174         (BUILD_VARRAY): Delete.
2175         (genprognormal): Rename genprogmd.  Fold in all programs from
2176         genprognoprint; also attrtab.
2177         (build/genattrtab): Just mention genautomata.o and varray.o.
2178         Reorganize a bit, add comments to make the categories clearer.
2179
2180 2006-01-22  Zack Weinberg  <zackw@panix.com>
2181
2182         * genconditions.c (condition_table, add_condition): Delete.
2183         (write_conditions): Don't emit n_insn_conditions nor
2184         insn_elision_unavailable.  Issue the gcc version #ifdef here,
2185         inside the table, with no #else clause ...
2186         (write_header): ...not here.
2187         (write_writer): New function.
2188         (main): Don't initialize condition_table.  Use add_c_test.
2189         Call write_writer.
2190         * gensupport.c (init_md_reader_args_cb): Handle multiple input
2191         files on the command line.
2192         (maybe_eval_c_test): Don't check insn_elision_unavailable.
2193         Return -1 if there is no entry in the table, don't abort.
2194         (add_c_test, traverse_c_tests): New functions.
2195         * gensupport.h (insn_elision_unavailable, insn_conditions)
2196         (n_insn_conditions): Delete declarations.
2197         (add_c_test, traverse_c_tests): Declare.
2198         * read-rtl.c: Include gensupport.h.
2199         (read_conditions): New function.
2200         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
2201         (read_rtx_1): If we get EOF when we were looking for an initial
2202         open paren, return 0.  Call read_conditions when appropriate.
2203         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
2204         dummy-conditions.o.  Eliminate references to insn-conditions.o,
2205         or change them to build/gencondmd.o, as appropriate.  Remove
2206         insn-constants.h from $(simple_generated_h) and insn-conditions.c
2207         from $(simple_generated_c).  For all files remaining in those
2208         two lists, add insn-conditions.md to the generator command line.
2209         Give insn-constants.h/s-constants their own rules.  Add rules
2210         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
2211         (build/read-rtl.o): Depend on gensupport.h.
2212         (genprognormal): Include preds.
2213         (genprogearly): Rename genprognoprint; only difference is now that
2214         they don't link with $(BUILD_PRINT).
2215         * dummy-conditions.c: Delete.
2216
2217 2006-01-22  Zack Weinberg  <zackw@panix.com>
2218
2219         * genextract.c: Don't include insn-config.h.  Do include vec.h.
2220         Declare vectors of int, char, and locstr.
2221         (locstr): New typedef.
2222         (struct extraction): Make all array fields into bare pointers.
2223         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
2224         (insn_code_number): Delete.
2225         (accum_extract): New struct.
2226         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
2227         (gen_insn): Take insn_code_number as an argument.  Use an
2228         accum_extract structure instead of loading data directly into
2229         a struct extraction, and having to know how big it might get.
2230         (walk_rtx): Operate entirely on an accum_extract structure.
2231         (print_path): Avoid unnecessary use of printf.
2232         (print_header): New function, split out of main.  Distinguish
2233         more carefully between an unrecognizable insn and an insn that
2234         has the code number of a define_expand.
2235         (main): Pass insn_code_number to gen_insn.  Call print_header
2236         only after parsing.  Avoid unnecessary use of printf.
2237         * Makefile.in (build/vec.o): New rule.
2238         (build/genextract): Depend on build/vec.o.
2239         (build/genextract.o): Don't depend on insn-config.h.
2240
2241 2006-01-22  Zack Weinberg  <zackw@panix.com>
2242
2243         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
2244         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
2245         practical.  Eliminate per-generator-program link rules.
2246
2247 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
2248
2249         PR middle-end/24437
2250         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
2251         with a call expr to ...
2252         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
2253
2254 2006-01-23  Richard Guenther  <rguenther@suse.de>
2255
2256         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
2257         before make_edge with conditional EDGE_TRUE_VALUE.
2258
2259 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
2260         Jan Hubicka  <jh@suse.cz>
2261         Richard Guenther  <rguenther@suse.de>
2262
2263         PR rtl-optimization/25654
2264         * cfgexpand.c (aggregate_contains_union_type): New function.
2265         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
2266         for structure variables that contain a union type.
2267
2268 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
2269
2270         * gengtype.c (new_structure): Return the structure.
2271         (create_option): Add an extra "next" argument.
2272         (create_field): New function.
2273         (adjust_field_rtx_def): Use create_option and create_field.
2274         Remove a now-unnecessary call to find_structure.
2275         (adjust_field_tree_def): Likewise.
2276         (note_yacc_type): Remove an unnecessary call to find_structure.
2277         * gengtype.h (new_structure): Return the structure.
2278         (create_option): Add an extra argument.
2279         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
2280         (option): Adjust calls to create_option.
2281
2282 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
2283
2284         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
2285
2286 2006-01-22  Paul Brook  <paul@codesourcery.com>
2287         Peter Barada  <peter@the-baradas.com>
2288
2289         * config/m68k/m68k.md: Add Coldfire FPU support.
2290         Define FP mode macro and associated attributes.
2291         Use it for float mode patterns.
2292         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
2293         (LIBCALL_VALUE): Use m68k_libcall_value.
2294         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
2295         (m68k_function_value): Ditto.
2296         (emit_move_sequence): Ditto.
2297         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
2298         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
2299         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
2300         (MULTILIB_EXCEPTIONS): Ditto.
2301         * config/m68k/m68k.opt: Add mcfv4e.
2302         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
2303         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
2304         (m68k_output_function_prologue): Save ColdFire FPU registers.
2305         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
2306         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
2307         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
2308         ColdFire FPU registers.
2309         (m68k_libcall_value, m68k_function_value): New functions.
2310         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
2311         (LIBCALL_VALUE): Use m68k_libcall_value.
2312         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
2313         (MASK_COLDFIRE): Add MASK_CFV4E.
2314         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
2315         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
2316         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
2317         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
2318         (GO_IF_LEGITIMATE_ADDRESS): Use it.
2319         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
2320         * doc/invoke.tex: Document -mcfv4e on m68k.
2321
2322 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
2323
2324         * doc/contribute.texi: Change CVS to SVN and update the corresponding
2325         URL.
2326
2327 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2328
2329         PR c++/16190
2330         * c-opts.c (c_common_handle_option): Don't include
2331         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
2332         * doc/invoke.texi (C++ Dialect Options): Document that
2333         -Wnon-virtual-dtor is no longer included in -Wall.
2334
2335 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
2336
2337         * gcov.c (print_version), gcov-dump.c (print_version),
2338         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
2339         dates.
2340
2341 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
2342
2343         * df-scan.c (problem_SCAN): Added NULL reset function.
2344         (df_scan_reset_blocks): Added code to call reset block function
2345         (df_bb_refs_delete) Fixed comment.
2346         (df_insn_refs_delete): Made tolerant of deleting non existent info
2347         for dataflow problems that need to be reset.
2348         * df-core.c (df_set_blocks): Ditto.
2349         * df.h (struct df_problem): Added reset_fun.
2350         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
2351         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
2352         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
2353         functions to clear out all references to def-use or use-def chains.
2354
2355 2006-01-21  Ben Elliston  <bje@au.ibm.com>
2356
2357         * varasm.c (assemble_real): Initialise data array.
2358
2359 2006-01-20  Paul Brook  <paul@codesourcery.com>
2360
2361         Merge from csl-arm-branch.
2362         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
2363         * config/arm/arm.md (movdi): Force operands[1] to a register
2364         if we have a non-register source.
2365         (*arm_movdi, *movdf_soft_insn): Require that one of the
2366         operands be a register.
2367         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
2368         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
2369
2370 2006-01-20  DJ Delorie  <dj@redhat.com>
2371
2372         * varasm.c (initialize_constant_valid_p): Allow pointers
2373         initialized from integer constants of lesser precision.
2374         (output_constant): Allow non-int-sized pointer modes to be
2375         initialized from integer constants.
2376
2377 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
2378
2379         PR libstdc++/25524
2380         * cppdefault.h (struct default_include): Add multilib flag.
2381         * cppdefault.c (cpp_include_defaults): Set it.
2382         * c.opt (-imultilib): New option.
2383         * c-opts.c (imultilib): New.
2384         (c_common_handle_option): Handle -imultilib.
2385         (c_common_post_options): Likewise.
2386         * c-incpath.c (add_standard_paths, register_include_chains):
2387         Likewise.
2388         * c-incpath.h (register_include_chains): Add extra parameter.
2389         * gcc.c (do_spec_1): Generate -imultilib option.
2390         (The Specs Language): Update %I description.
2391         (process_command): Update copyright notice.
2392         * doc/cppopts.texi (-imultilib): Document.
2393         * doc/invoke.texi (-imultilib): Include in option summary.
2394         (%I): Update specs documentation.
2395
2396 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
2397
2398         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
2399
2400 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
2401
2402         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
2403         label numbers.
2404
2405 2006-01-20  Richard Guenther  <rguenther@suse.de>
2406         Steven Bosscher <stevenb.gcc@gmail.com>
2407
2408         PR rtl-optimization/24626
2409         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
2410         EDGE_TRUE_VALUE if in RTL mode.
2411
2412         Revert
2413         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
2414         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
2415
2416 2006-01-20  Dirk Mueller  <dmueller@suse.com>
2417
2418         PR c++/5520
2419         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
2420         instead of a special NOP marker.
2421         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
2422         NOP marker handling.
2423         * c-common.h (empty_body_warning): Add forward declaration.
2424         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
2425         Now uses IS_EMPTY_STMT() instead of special NOP markers.
2426
2427 2006-01-20  Paul Brook  <paul@codesourcery.com>
2428
2429         * Makefile.in (lang_checks): Keep going if mkdir fails.
2430
2431 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
2432
2433         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
2434         be able to clean out basic block when not necessary.
2435         (df_scan_free): Fixed to properly delete information if df is
2436         unused before calling df_finish.
2437         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
2438         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
2439         or comment typos.
2440         (df_bb_refs_delete): New function.
2441         (df_refs_delete): Moved per block code to df_bb_refs_delete.
2442         * df-core.c (df_set_blocks): Added code to properly clean out
2443         unused blocks if they are not part of the blocks to consider.
2444         Added additional null check.
2445         (df_compact_blocks): Added basic block parameter to free_bb_fun to
2446         be able to clean out basic block when not necessary
2447         * df.h (df_free_bb_function): Ditto.
2448         (df_bb_refs_delete): New function.
2449         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
2450         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
2451         basic block parameter to be able to clean out basic block when not
2452         necessary.
2453         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
2454         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
2455         Fixed to properly delete information if df is unused before
2456         calling df_finish.
2457
2458 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
2459
2460         PR rtl-optimization/25799
2461         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
2462         Corrected confluence operator to remove bits from op2 before oring
2463         with op1 rather than removing bits from op1.
2464         (df_ru_transfer_function): Corrected test on wrong bitmap which
2465         caused infinite loop.  Both of these problems were introduced in
2466         the dataflow rewrite.
2467
2468 2006-01-19  DJ Delorie  <dj@redhat.com>
2469
2470         * reload1.c (find_reload_regs): Note the details of reload
2471         failures in the dump file.
2472         (spill_failure): Likewise.
2473
2474 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
2475
2476         * loop-iv.c: Include df.h and hashtab.h.
2477         (enum iv_grd_result): New enum.
2478         (DF_REF_IV, DF_REF_IV_SET): New macros.
2479         (struct biv_entry): New.
2480         (df, bivs): New global variables.
2481         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
2482         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
2483         Removed.
2484         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
2485         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
2486         analyzed_for_bivness_p, record_biv): New functions.
2487         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
2488         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
2489         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
2490         UD chains.
2491         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
2492         analysed.
2493         (iv_number_of_iterations): Use new interface to iv analysis.
2494         * loop-unroll.c: Do not include varray.h.
2495         (analyze_iv_to_split_insn): Use new interface to iv
2496         analysis.
2497         * loop-unswitch.c (may_unswitch_on): Ditto.
2498         * df.c (df_bitmaps_free): Only work for bbs for that structures are
2499         allocated.
2500         (df_bb_modify): Realloc tables to the new index.
2501         (df_find_use): New function.
2502         * df.h (df_find_use): Declare.
2503         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
2504         outmode.
2505         * cfgloop.h (struct rtx_iv): Remove analysed field.
2506         (iv_get_reaching_def): Removed.
2507         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
2508         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
2509         (loop-iv.o): Add df.h and hashtab.h dependency.
2510         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
2511
2512 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
2513
2514         PR target/25668
2515         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
2516         Double TFmode.
2517         (__floatundisf, __floatundidf): Likewise.
2518         * libgcc2.h (IS_IBM_EXTENDED): Define.
2519
2520 2006-01-19  DJ Delorie  <dj@redhat.com>
2521
2522         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
2523
2524 2006-01-19  Paul Brook  <paul@codesourcery.com>
2525
2526         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
2527         as nothrow when unwinding tables are disabled.
2528
2529 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2530
2531         PR testsuite/25171
2532         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
2533         of bit-field" when in system header.
2534
2535 2006-01-19  DJ Delorie  <dj@redhat.com>
2536
2537         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
2538         the 16 bit shift limit of the m16c.
2539
2540 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
2541
2542         PR target/22099
2543         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
2544         * config/i386/i386.c (output_set_got): Output the label if we have one
2545         for the TARGET_DEEP_BRANCH_PREDICTION case.
2546
2547 2006-01-19  Jan Hubicka  <jh@suse.cz>
2548             H.J. Lu  <hongjiu.lu@intel.com>
2549             Evandro Menezes <evandro.menezes@amd.com>
2550
2551         * invoke.texi (generic): Document
2552         (i686) Update.
2553         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
2554         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
2555         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
2556         (x86_use_incdec, x86_pad_returns): New variables
2557         (TARGET_CPU_DEFAULT_generic): New constant
2558         (TARGET_CPU_DEFAULT_NAMES): Add generic.
2559         (enum processor_type): Add generic32 and generic64.
2560         * i386.md (cpu attribute): Add generic32/generic64
2561         (movhi splitter): Behave sanely when both partial_reg_dependency and
2562         partial_reg_stall are set.
2563         (K8 splitters): Enable for generic as well.
2564         * predicates.md (incdec_operand): Use TARGET_INCDEC
2565         (aligned_operand): Avoid memory mismatch stalls.
2566         * athlon.md: Enable for generic64, new patterns for 128bit moves.
2567         * ppro.md: Enable for generic32
2568         * i386.c (generic64_cost, generic32_cost): New.
2569         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
2570         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
2571         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
2572         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
2573         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
2574         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
2575         x86_partial_reg_dependency, x86_memory_mismatch_stall,
2576         x86_accumulate_outgoing_args, x86_prologue_using_move,
2577         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
2578         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
2579         Enable for generic.
2580         (x86_use_incdec, x86_pad_returns): New.
2581         (override_options): Add generic32 and generic64, translate "generic"
2582         to generic32/generic64 and "i686" to "generic32", refuse
2583         "generic32"/"generic64" as arch target.
2584         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
2585         (ix86_reorg): Honor PAD_RETURNS.
2586
2587 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
2588
2589         * tree-pretty-print.c (dump_generic_node): Handle
2590         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
2591         * cgraph.c (cgraph_expand_queue): Rename from
2592         cgraph_analyze_queue.  Update all users.
2593         * cgraphunit.c (cgraph_assemble_pending_functions): Process
2594         cgraph_expand_queue.
2595         (cgraph_expand_all_functions): Likewise.
2596         (cgraph_finalize_pending_functions): Remove.  Update callers.
2597
2598         * tree.h (OMP_DIRECTIVE_P): Define.
2599         (OMP_PARALLEL_FN): Define.
2600         (OMP_PARALLEL_DATA_ARG): Define.
2601         (OMP_SECTIONS_SECTIONS): Define.
2602         * tree-pass.h (pass_expand_omp): Declare.
2603         * omp-low.c (struct omp_region): Declare.
2604         (struct omp_context): Remove fields 'parallel_type',
2605         'parallel_start_ix' and 'parallel_start_additional_args'.
2606         Update all users.
2607         (struct omp_for_data): Rename from struct expand_omp_for_data.
2608         (omp_regions): New static variable.
2609         (root_omp_region): New static variable.
2610         (find_omp_clause): Make static.
2611         (is_in_combined_parallel_ctx): Remove.
2612         (is_combined_parallel): New.
2613         (extract_omp_for_data): Move earlier in the file.
2614         (workshare_safe_to_combine_p): New.
2615         (get_ws_args_for): New.
2616         (determine_parallel_type): Move earlier in the file.
2617         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
2618         child function.
2619         (omp_copy_decl): Likewise.
2620         (create_omp_child_function): Likewise.
2621         (lookup_omp_region): New.
2622         (dump_omp_region): New.
2623         (debug_omp_region): New.
2624         (debug_all_omp_regions): New.
2625         (new_omp_region): New.
2626         (scan_omp_parallel): If parallel_nesting_level > 1, the
2627         directive is nested within another parallel directive.
2628         Set OMP_PARALLEL_FN.
2629         (scan_omp_for): Do not try to handle combined parallel+for
2630         cases.
2631         Remove FIXME comment.
2632         (scan_omp_nested): Remove.
2633         (scan_omp_1): Do not call scan_omp_nested when
2634         parallel_nesting_level is > 1.
2635         Do not change the DECL_CONTEXT of local variables found.
2636         (lookup_decl_in_outer_ctx): New.
2637         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
2638         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
2639         (lower_reduction_clauses): Rename from expand_reduction_clauses.
2640         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
2641         If CTX is nested, lookup VAR in the outer context when
2642         building copy assignment.
2643         (lower_send_clauses): Rename from expand_send_clauses.
2644         If CTX is nested, lookup VAR in the outer context when
2645         building copy assignments.
2646         (lower_send_shared_vars): Rename from expand_send_shared_vars.
2647         If CTX is nested, lookup VAR in the outer context when
2648         building copy assignments.
2649         (expand_parallel_call): Rename from build_parallel_call.
2650         Handle combined parallel+workshare cases.
2651         Re-implement to emit code into the CFG.
2652         (list2chain): New.
2653         (expand_omp_parallel): Re-implement to emit code into the CFG.
2654         Call move_sese_region_to_fn to outline the sub-graph
2655         containing the parallel region.
2656         (expand_omp_for_1): Remove.
2657         (expand_omp_for_generic): Re-implement to emit code into the
2658         CFG.
2659         (expand_omp_for_static_nochunk): Likewise.
2660         (expand_omp_for_static_chunk): Likewise.
2661         (expand_omp_for): Likewise.
2662         (expand_omp_sections): Likewise.
2663         (remove_exit_barriers): New.
2664         (expand_omp_synch): New.
2665         (expand_omp): New.
2666         (build_omp_regions_1): New.
2667         (build_omp_regions): New.
2668         (execute_expand_omp): New.
2669         (gate_expand_omp): New.
2670         (pass_expand_omp): Define.
2671         (lower_omp_sections): Rename from expand_omp_sections.
2672         Set OMP_SECTIONS_SECTIONS.
2673         (lower_omp_single_simple): Rename from expand_omp_single_simple.
2674         (lower_omp_single_copy): Rename from expand_omp_single_copy.
2675         (lower_omp_single): Rename from expand_omp_simple.
2676         (lower_omp_master): Rename from expand_omp_master.
2677         (lower_omp_ordered): Rename from expand_omp_ordered.
2678         (lower_omp_critical): Rename from expand_omp_critical.
2679         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
2680         (lower_omp_for): Re-implement.
2681         (lower_omp_parallel): Re-implement.
2682         (lower_regimplify): Rename from expand_regimplify.
2683         (lower_omp_1): Rename from expand_omp_1.
2684         If there are syntax errors in the program, replace every
2685         OpenMP directive with NOP.
2686         Call lower_omp_* instead of expand_omp_*.
2687         (lower_omp): Rename from expand_omp.
2688
2689         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
2690         * tree-gimple.h (enum omp_parallel_type): Remove.
2691         (gimple_boolify): Declare extern.
2692         (find_omp_clause, determine_parallel_type): Remove.
2693
2694         * gimple-low.c (lower_omp_directive): New.
2695         (lower_stmt): Call it.
2696         (record_vars_into): Move from ...
2697         (record_vars): ... here.
2698         Call record_vars_into with current_function_decl.
2699
2700         * gimplify.c (struct gimplify_ctx): Remove fields
2701         combined_pre_p and combined_ctxp.  Update users.
2702         (get_formal_tmp_var): Add documentation.
2703         (gimple_boolify): Make extern.
2704         (gimplify_expr_in_ctx): Remove.  Update callers.
2705         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
2706         will always be a BIND_EXPR.
2707         (gimplify_expr): Handle OMP_RETURN_EXPR.
2708         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
2709         (OMP_PARALLEL): Add 3 operands.
2710         (OMP_SECTIONS): Add 1 operand.
2711         (OMP_RETURN_EXPR): Define.
2712
2713         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
2714         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
2715         * tree-iterator.c (alloc_stmt_list): Assert that we are not
2716         creating a circular free list.
2717         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
2718
2719         * tree-flow.h (move_sese_region_to_fn): Declare.
2720         (record_vars_into): Declare.
2721         * tree-cfg.c (make_omp_sections_edges): New.
2722         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
2723         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
2724         OMP_SECTIONS and OMP_SECTION.
2725         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
2726         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
2727         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
2728         (gather_blocks_in_sese_region): New.
2729         (struct move_stmt_d): Declare.
2730         (move_stmt_r): New.
2731         (move_block_to_fn): New.
2732         (move_sese_region_to_fn): New.
2733
2734         * passes.c (init_optimization_passes): Schedule
2735         pass_expand_omp after pass_init_datastructures.
2736
2737         * tree-ssa-operands.c (get_expr_operands): Handle
2738         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
2739         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
2740
2741 2006-01-19  Jeff Law  <law@redhat.com>
2742
2743         * tree-vrp.c (extract_range_from_assert): Refine the result range
2744         if the variable referenced by the ASSERT_EXPR has a range and
2745         either the tentative result range or the previous range is a
2746         VR_ANTI_RANGE.
2747
2748 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
2749
2750         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
2751
2752 2006-01-19  Jan Hubicka  <jh@suse.cz>
2753
2754         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
2755
2756 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
2757
2758         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
2759         (expand_compound_operation, expand_field_assignment): Fail if the
2760         bit lengths of an extract operation are out of range.
2761         (make_extraction): Compute wanted_inner_mode based on the position
2762         and length of the extraction.  Make it extraction_mode for non-constant
2763         positions, and do not modify offset in that case.  When generating a
2764         new MEM, use a mode that can hold the extraction while keeping correct
2765         alignment.  Remove code that supported MEMs wrapped by USEs.
2766         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
2767
2768 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
2769
2770         * config/s390/s390.md ("Y", "y"): New mode attribute.
2771         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
2772         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
2773         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
2774         "*addsi3_imm_cc", "*addsi3_carry1_cc",
2775         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
2776         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
2777         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
2778         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
2779         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
2780         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
2781         "addsi3", "subsi3"): Insn patterns removed.
2782         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
2783         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
2784         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
2785         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
2786         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
2787         "*sub<mode>3_cconly2"): New insn patterns.
2788         ("addsi3", "subsi3"): New expanders.
2789
2790 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
2791
2792         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
2793         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
2794         existing STMT_VINFO_VECTYPE if available.
2795         (vect_mark_relevant): Add special handling for stmts that are
2796         marked as STMT_VINFO_IN_PATTERN_P.
2797         (vect_analyze_loop): Call vect_pattern_recog.
2798         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
2799         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
2800         stmt_info.
2801         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
2802         (vect_recog_func_ptr): New function-pointer type.
2803         * tree-vect-patterns.c: New file.
2804         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
2805         (vect_recog_dot_prod_pattern, vect_pattern_recog):
2806         (vect_pattern_recog_1): New functions.
2807         (vect_pattern_recog_funcs): New array of function pointers.
2808
2809         * tree-vectorizer.h (ternary_op): New enum value.
2810         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
2811         declaration. Revised documentation. Removed redundant dump prints.
2812         Removed redundant argument. Added support for reduction patterns.
2813         (vectorizable_reduction): Added support for reduction patterns.
2814         (vect_transform_stmt): Added support for patterns.
2815
2816         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
2817         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
2818         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
2819         (expand_widen_pattern_expr): New function.
2820         (init_optabs): Initialize new optabs udot_prod_optab,
2821         sdot_prod_optab.
2822         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
2823         (sdot_prod_optab, udot_prod_optab): Define new optabs.
2824         (expand_widen_pattern_expr): New function declaration.
2825         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
2826         tree-codes.
2827         * tree-inline.c (estimate_num_insns_1): Added cases for new
2828         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
2829         * tree-pretty-print.c (dump_generic_node): Likewise.
2830         (op_prio): Likewise.
2831         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
2832         * tree-ssa-operands.c (get_expr_operands): Added case for
2833         DOT_PROD_EXPR.
2834         * tree-vect-patterns.c (widened_name_p): New function.
2835         (vect_recog_dot_prod_pattern): Added function implementation.
2836         * tree-vect-transform.c (get_initial_def_for_reduction): Added
2837         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
2838         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
2839         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
2840
2841         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
2842         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
2843         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
2844         (init_optabs): Initialize new optabs widen_ssum_optab,
2845         widen_usum_optab.
2846         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
2847         (widen_ssum_optab, widen_usum_optab): Define new optabs.
2848         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
2849         use instead of type of def.
2850         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
2851         function implementation.
2852         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
2853         widen_ssumv8hi): New.
2854
2855         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
2856         patterns.
2857
2858 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
2859
2860         PR c/25805
2861         * c-decl.c (add_flexible_array_elts_to_size): New function.
2862         (finish_decl): Use it.
2863
2864 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
2865
2866         * diagnostic.h: Include options.h.
2867         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
2868         dependancies for diagnostic.h.
2869         * Makefile.in (DIAGNOSTIC_H): Add options.h.
2870
2871 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
2872
2873         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
2874         (ssa_ro_call_cache_valid): Ditto.
2875         * tree-ssa-alias.c (sort_tags_by_id): New function.
2876         (init_transitive_clobber_worklist): Ditto.
2877         (add_to_worklist): Ditto.
2878         (mark_aliases_call_clobbered): Ditto.
2879         (compute_tag_properties): Ditto.
2880         (set_initial_properties): Ditto.
2881         (compute_call_clobbered): Ditto.
2882         (compute_may_aliases):  Call compute_call_clobbered and grouping.
2883         (compute_flow_sensitive_aliasing): Remove clobbering related code.
2884         (compute_flow_insensitive_aliasing): Grouping now happens in our
2885         caller.
2886         (setup_pointers_and_addressables): Remove clobbering related code.
2887         (add_may_alias): Ditto.
2888         (replace_may_alias): Ditto.
2889         (get_nmt_for): Ditto.
2890         (create_global_var):
2891         (is_escape_site): Return an escape_type enumeration.
2892         * tree-flow-inline.h (is_call_clobbered):  Global var does not
2893         imply call clobbered.
2894         (mark_call_clobbered): Take a reason for marking this. Remove
2895         marking of globalness, and cache invalidation.
2896         (clear_call_clobbered): Remove cache invalidation code.
2897         * tree-dfa.c (dump_variable): If details is on, dump the reason
2898         for escaping.
2899         * tree-outof-ssa.c (create_temp): Copy escape mask from original
2900         variable.
2901         * tree-flow.h (struct ptr_info_def): Add escape mask member.
2902         (struct var_ann_d): Ditto.
2903         (enum escape_type): New.
2904         (mark_call_clobbered): Adjust prototype.
2905         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
2906         are never call clobbered.
2907         Record reasons for escaping.
2908         * tree-ssa-structalias.h (is_escape_site): Update prototype.
2909         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
2910         (ssa_ro_call_cache_valid): Ditto.
2911         (clobbered_v_may_defs): Ditto.
2912         (clobbered_vuses): Ditto.
2913         (ro_call_vuses): Ditto.
2914         (clobber_stats): New.
2915         (init_ssa_operands): Zero out clobber stats.
2916         (fini_ssa_operands): Print out clobber stats.
2917         (get_call_expr_operands): Pass callee fndecl to
2918         add_call_read_ops).
2919         (add_call_clobber_ops): Remove use of cache.
2920         Add use of PURE_CONST information.
2921         (add_call_read_ops): Remove use of cache.
2922         Add use of static not_read information.
2923
2924 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
2925
2926         Introduce TLS descriptors for i386 and x86_64.
2927         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
2928         (TARGET_ANY_GNU_TLS): New macro.
2929         (enum tls_dialect): Added TLS_DIALECT_GNU2.
2930         (struct machine_function): Add tls_descriptor_call_expanded_p.
2931         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
2932         (ix86_current_function_calls_tls_descriptor): Likewise.
2933         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
2934         (override_options): Introduce gnu2 tls dialect.
2935         (ix86_frame_pointer_required): Functions containing TLSCALLs are
2936         not leaves.
2937         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
2938         Likewise.
2939         (legitimize_tls_address): Adjust logic for GNU2 TLS.
2940         (ix86_init_machine_status): Initialize new field.
2941         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
2942         (ix86_tls_module_base): New.
2943         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
2944         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
2945         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
2946         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
2947         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
2948         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
2949         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
2950         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
2951         * config/i386/predicates.md (tls_modbase_operand): New.
2952         (tp_or_register_operand): New.
2953
2954 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
2955
2956         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
2957         (look_for_address_of): Ditto.
2958         (ipa_init): Walk the function decls.
2959         (static_execute): Don't set readonly on FUNCTION_DECL's.
2960
2961 2006-01-18  Roger Sayle  <roger@eyesopen.com>
2962
2963         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
2964         for shifts where the source and destination registers are different.
2965
2966 2006-01-18  Paul Brook  <paul@codesourcery.com>
2967
2968         Merge from csl-arm-branch.
2969         2005-03-14  Julian Brown  <julian@codesourcery.com>
2970         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
2971         (aeabi_llsl): Likewise.
2972         (ashrdi3): Likewise.
2973         (aeabi_lasr): Likewise.
2974         (lshrdi3): Likewise.
2975         (aeabi_llsr): Likewise.
2976         2005-03-10  Julian Brown  <julian@codesourcery.com>
2977         * config.gcc: Disable shared libgcc for SymbianOS.
2978         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
2979
2980 2006-01-18  DJ Delorie  <dj@redhat.com>
2981
2982         * c-pragma.c (handle_pragma_diagnostic): New.
2983         (init_pragma): Register it.
2984         * doc/extend.texi: Document it.
2985
2986         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
2987         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
2988         (diagnostic_context): Add classify_diagnostic[].
2989         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
2990         as errors if they're overridden to DK_WARNING.
2991         (diagnostic_initialize): Initialize classify_diagnostic[].
2992         (diagnostic_set_kind_override): New.
2993         (diagnostic_report_diagnostic): Check for kind changes.
2994         * opts.c (common_handle_option): Take lang_mask.  Update callers.
2995         Handle OPT_Werror_.
2996         * common.opt (Werror=): New.
2997         * doc/invoke.texi: Document -Werror=*
2998
2999 2006-01-18  Jeff Law  <law@redhat.com>
3000
3001         * tree-vrp.c (test_for_singularity): Correct test for new
3002         min limit.  Use operand_equal_p rather than pointer equality
3003         for testing if new min/max values are equal.
3004
3005         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
3006         using range information until after propagation and folding.
3007
3008 2006-01-18  Richard Henderson  <rth@redhat.com>
3009             Aldy Hernandez  <aldyh@redhat.com>
3010             Jakub Jelinek  <jakub@redhat.com>
3011             Diego Novillo  <dnovillo@redhat.com>
3012
3013         * omp-low.c: New file.
3014         * c-omp.c: New file.
3015
3016 2006-01-18  Richard Henderson  <rth@redhat.com>
3017             Jakub Jelinek  <jakub@redhat.com>
3018             Diego Novillo  <dnovillo@redhat.com>
3019
3020         * doc/invoke.texi: Document -fopenmp.
3021         * tree-dump.h (debug_function): Declare.
3022         * hooks.c (hook_bool_tree_bool_false): New function.
3023         (hook_tree_tree_null): Remove.
3024         (hook_tree_tree_tree_null): New.
3025         * hooks.h: Update to match.
3026         * tree-pretty-print.c (debug_tree_chain): New.
3027         (print_generic_expr): Handle TDF_CHAIN.
3028         (dump_generic_node): Handle BLOCK.
3029         Do not abort with incomplete SWITCH_EXPRs.
3030         Do not dump body of an OpenMP directive if TDF_SLIM is given.
3031         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
3032         print space after directive name.
3033         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
3034         Handle OMP_MASTER and OMP_ORDERED.
3035         Handle printing of OMP_BODY just in one place, goto
3036         dump_omp_body in the rest of OMP_* nodes that have
3037         OMP_BODY.
3038         Don't handle clause nodes here.  Update omp statements to
3039         use dump_omp_clauses.
3040         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
3041         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
3042         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
3043         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
3044         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
3045         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
3046         Adjust output for GOMP_PARALLEL.
3047         (dump_omp_clauses): New.
3048         (print_declaration): Dump DECL_VALUE_EXPR.
3049         (op_symbol_1): Split out of op_symbol.
3050         (dumping_stmts): Remove.  Update all users.
3051         * cgraph.c (cgraph_analyze_queue): New.
3052         (cgraph_add_new_function): New.
3053         * cgraph.h (cgraph_analyze_queue): Declare.
3054         (cgraph_add_new_function): Declare.
3055         (cgraph_lower_function): Remove.
3056         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
3057         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
3058         and TYPE_P nodes in its default clause.
3059         (empty_body_p): New.
3060         (tree_range_check_failed): New.
3061         (build5_stat): New.
3062         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
3063         OMP_CLAUSE_REDUCTION_MERGE,
3064         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
3065         OMP_CLAUSE_PRIVATE_DEBUG,
3066         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
3067         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
3068         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
3069         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
3070         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
3071         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
3072         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
3073         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
3074         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
3075         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
3076         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
3077         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
3078         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
3079         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
3080         (TREE_RANGE_CHECK): New.
3081         (empty_body_p): Declare.
3082         (enum omp_clause_default_kind): New.
3083         (build_string_literal): Declare.
3084         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
3085         (build5_stat, build5): Declare.
3086         * tree-pass.h (TDF_CHAIN): Define.
3087         * tree-pass.h (PROP_gimple_lomp): Define.
3088         (pass_lower_omp): Declare.
3089         * diagnostic.h (debug_tree_chain): Declare.
3090         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
3091         mode_for_size.
3092         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
3093         * builtins.c (build_string_literal): Make extern.
3094         * gcc.c (include_spec_function): New.
3095         (static_spec_functions): Add it.
3096         (main): Move load of libgomp.spec ...
3097         (LINK_COMMAND_SPEC): ... here.
3098         (link_gomp_spec): New.
3099         (static_specs): Include it.
3100         (LINK_COMMAND_SPEC): Add link_gomp.
3101         (GOMP_SELF_SPECS): New.
3102         (driver_self_specs): Include it.
3103         (switch_matches): Don't mark inline.
3104         (main): Load libgomp.spec.
3105         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
3106         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
3107         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
3108         * tree-gimple.h (enum omp_parallel): Declare.
3109         (determine_parallel_type): Declare.
3110         (omp_firstprivatize_variable): Declare.
3111         (omp_reduction_init): Declare.
3112         (diagnose_omp_structured_block_errors): Declare.
3113         (struct walk_stmt_info): Add want_return_expr.
3114         (struct walk_stmt_info): Add want_bind_expr, want_locations.
3115         (find_omp_clause): Declare.
3116         (insert_field_into_struct): Declare.
3117         (struct walk_stmt_info): Move from tree-nested.c
3118         (walk_stmts): Declare.
3119         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
3120         to 200505.
3121         * cgraphunit.c (cgraph_lower_function): Make static.
3122         (cgraph_finalize_pending_functions): New.
3123         (cgraph_finalize_function): Call it.
3124         (cgraph_finalize_compilation_unit): Likewise.
3125         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
3126         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
3127         (BT_FN_UINT_UINT): New.
3128         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
3129         DEF_FUNCTION_TYPE_VAR_4): Document.
3130         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
3131         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
3132         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
3133         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
3134         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
3135         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
3136         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
3137         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
3138         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
3139         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
3140         into separate files.
3141         (DEF_GOMP_BUILTIN): New.
3142         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
3143         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
3144         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
3145         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
3146         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
3147         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
3148         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
3149         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
3150         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
3151         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
3152         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
3153         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
3154         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
3155         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
3156         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
3157         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
3158         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
3159         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
3160         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
3161         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
3162         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
3163         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
3164         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
3165         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
3166         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
3167         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
3168         * sync-builtins.def: New file, moved from builtins.def.
3169         * omp-builtins.def: New file, moved from builtins.def.
3170         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
3171         * gimple-low.c (lower_function_body): Clear data.
3172         (lower_stmt): Do not handle COMPOUND_EXPR.
3173         Remove call to print_node_brief.
3174         * c-tree.h (c_finish_omp_clauses): New prototype.
3175         (C_DECL_THREADPRIVATE_P): Define.
3176         (lookup_name_no_remap, c_omp_remap_private): Remove
3177         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
3178         (check_for_loop_decls): Update decl.
3179         (lookup_name_no_remap, c_omp_remap_private): Declare.
3180         (build_indirect_ref, build_modify_expr, pushdecl,
3181         pushdecl_top_level): Move to c-common.h.
3182         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
3183         before the switch, but just in the 2 places that need it.
3184         * c-decl.c (diagnose_mismatched_decls): Do not check for
3185         mismatched thread-local attributes when OLDDECL is marked
3186         threadprivate and NEWDECL has no thread-local attributes.
3187         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
3188         (c_gimple_diagnostics_recursively): Rename from
3189         c_warn_unused_result_recursively.  Invoke
3190         diagnose_omp_structured_block_errors.
3191         (check_for_loop_decls): Return a singular decl found.
3192         * langhooks.c (lhd_omp_predetermined_sharing): Return
3193         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
3194         (lhd_omp_firstprivatize_type_sizes): New.
3195         (lhd_omp_assignment): New.
3196         (lhd_omp_predetermined_sharing): New.
3197         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
3198         (struct lang_hooks_for_types): Add
3199         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
3200         omp_predetermined_sharing, omp_disregard_value_expr,
3201         omp_private_debug_clause, omp_clause_default_ctor,
3202         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
3203         (c_finish_omp_clauses): New.
3204         (c_finish_bc_stmt): Diagnose break within omp for.
3205         (c_begin_omp_parallel, c_finish_omp_parallel): New.
3206         (build_unary_op): Return error_mark after reporting
3207         a readonly_error.
3208         (build_modify_expr): Likewise.
3209         * gimplify.c: Include optabs.h and pointer-set.h.
3210         (enum gimplify_omp_var_data): Declare.
3211         (struct gimplify_omp_ctx): Declare.
3212         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
3213         and combined_ctxp.
3214         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
3215         (push_gimplify_context, pop_gimplify_context): Allow nesting.
3216         (splay_tree_compare_decl_uid): New.
3217         (new_omp_context): New.
3218         (delete_omp_context): New.
3219         (gimple_add_tmp_var): Call omp_add_variable.
3220         (gimplify_bind_expr): Likewise.
3221         (gimplify_var_or_parm_decl): If omp_notice_variable returned
3222         true, disregard DECL_VALUE_EXPR on the decl if any.
3223         (gimplify_expr_in_ctx): New.
3224         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
3225         omp_add_variable, omp_notice_variable, omp_is_private
3226         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
3227         gimplify_adjust_omp_clauses, gimplify_omp_parallel
3228         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
3229         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
3230         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
3231         gimplify_omp_atomic): New.
3232         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
3233         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
3234         OMP_CRITICAL and OMP_ATOMIC.
3235         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
3236         * c-pragma.h (enum pragma_kind): Add
3237         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
3238         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
3239         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
3240         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
3241         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
3242         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
3243         PRAGMA_OMP_THREADPRIVATE.
3244         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
3245         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
3246         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
3247         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
3248         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
3249         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
3250         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
3251         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
3252         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
3253         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
3254         * tree-ssa-dce.c (find_control_dependence): Do not assume that
3255         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
3256         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
3257         OpenMP directives.
3258         (struct nesting_info): Add field_map,
3259         suppress_expansion, debug_var_chain.
3260         (create_nesting_tree): Initialize them.
3261         (lookup_field_for_decl): Use field_map.
3262         (get_nonlocal_debug_decl, get_local_debug_decl): New.
3263         (convert_local_omp_clauses): New.
3264         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
3265         (walk_body): Split out of walk_function.
3266         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
3267         (convert_nonlocal_reference): Handle omp statements.
3268         (convert_local_reference): Likewise.
3269         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
3270         (unnest_nesting_tree): New.
3271         (lower_nested_functions): Call it.
3272         (insert_field_into_struct): Make extern.
3273         (struct walk_stmt_info): Move to tree-gimple.h.
3274         (walk_stmts): Make extern.
3275         * omp-builtins.def: New file.
3276         * tree-iterator.c (expr_only): Clarify comment.
3277         * c-common.h (pushdecl_top_level, pushdecl,
3278         build_modify_expr, build_indirect_ref,
3279         c_finish_omp_master, c_finish_omp_critical,
3280         c_finish_omp_ordered, c_finish_omp_barrier,
3281         c_finish_omp_atomic, c_finish_omp_flush,
3282         c_finish_omp_for, c_split_parallel_clauses,
3283         omp_clause_default_kind, c_omp_sharing_predetermined,
3284         c_omp_remap_decl): Declare.
3285         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
3286         (OBJS-common): Add omp-low.o.
3287         (c-omp.o, omp-low.o): Add.
3288         (gimplify.o): Add dependency on $(OPTABS_H).
3289         (GTFILES): Add omp-low.c.
3290         (gt-stringpool.h): Add.
3291         * tree-cfg.c (set_bb_for_stmt): Do not update the
3292         block-to-labels map if we are currently expanding to RTL.
3293         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
3294         checks.
3295         Handle IDENTIFIER_NODE.
3296         (tree_verify_flow_info): Do not ICE when emitting error
3297         messages about invalid labels.
3298         (dump_function_to_file): Reset CFUN before emitting the body
3299         of the function.
3300         (debug_function): New.
3301         * passes.c (init_optimization_passes): Schedule
3302         pass_lower_omp.
3303         * langhooks-def.h (lhd_omp_predetermined_sharing,
3304         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
3305         Declare.
3306         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
3307         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
3308         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
3309         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
3310         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
3311         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
3312         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
3313         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
3314         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
3315         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
3316         (LANG_HOOK_DECLS): Use them.
3317
3318 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
3319             Richard Henderson  <rth@redhat.com>
3320             Jakub Jelinek  <jakub@redhat.com>
3321             Diego Novillo  <dnovillo@redhat.com>
3322
3323         * c-parser.c (pragma_omp_clause): Define.
3324         (c_parser_declaration_or_fndef): Document OpenMP syntax.
3325         (c_parser_compound_statement): Likewise.
3326         (c_parser_statement): Likewise.
3327         (c_parser_pragma): Handle omp pragmas.
3328         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
3329         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
3330         (c_parser_omp_clause_name, check_no_duplicate_clause,
3331         c_parser_omp_variable_list,
3332         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
3333         c_parser_omp_clause_copyprivate,
3334         c_parser_omp_clause_default,
3335         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
3336         c_parser_omp_clause_lastprivate,
3337         c_parser_omp_clause_nowait,
3338         c_parser_omp_clause_num_threads,
3339         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
3340         c_parser_omp_clause_reduction,
3341         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
3342         c_parser_omp_all_clauses, c_parser_omp_structured_block,
3343         c_parser_omp_atomic, c_parser_omp_barrier,
3344         c_parser_omp_critical, c_parser_omp_flush,
3345         c_parser_omp_for_loop, c_parser_omp_for,
3346         c_parser_omp_master, c_parser_omp_ordered,
3347         c_parser_omp_sections_scope, c_parser_omp_sections,
3348         c_parser_omp_parallel, c_parser_omp_single,
3349         c_parser_omp_construct, c_parser_omp_threadprivate): New.
3350         * c-pragma.c (init_pragma): Do omp pragma registration here.
3351         * c.opt (fopenmp): New flag.
3352
3353 2006-01-18  Eric Christopher  <echristo@apple.com>
3354
3355         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
3356         * config/darwin.h (GOMP_SELF_SPECS): Define.
3357
3358 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
3359
3360         * rtl.h: Remove the prototype for reg_alloc.
3361
3362 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3363
3364         PR target/25731
3365         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
3366         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
3367         sjlj and dwarf2 exception handling.
3368         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
3369         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
3370         * pa/pa.c (function_value): Treat complex and vector types as
3371         aggregates.
3372         (function_arg): Likewise.  Only pass scalar floats in the floating
3373         point argument registers.
3374         * pa/t-slibgcc-dwarf-ver: New file.
3375         * pa/t-slibgcc-sjlj-ver: New file.
3376         * pa/t-slibgcc-elf-ver: Delete file.
3377
3378 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
3379
3380         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
3381         unlikely_test_section_p test.
3382
3383 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
3384
3385         * mode-switching.c (optimize_mode_switching): Make it static.
3386         * basic-block.h: Remove the prototype for
3387         optimize_mode_switching.
3388
3389         * modulo-sched.c (sms_schedule): Make it static.
3390         * rtl.h: Remove the prototype for sms_schedule.
3391
3392         * postreload-gcse.c (gcse_after_reload_main): Make it static.
3393         * rtl.h: Remove the prototype for gcse_after_reload_main.
3394
3395         * reg-stack.c (reg_to_stack): Make it static.
3396         * rtl.h: Remove the prototype for reg_to_stack.
3397
3398         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
3399         Make them static.
3400         * rtl.h: Remove the prototypes for regrename_optimize and
3401         copyprop_hardreg_forward.
3402
3403 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
3404
3405         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
3406         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
3407         Test against the appropriate null constant for the mode.
3408         If 'fixup_overlap' is true, swap the operands if they overlap.
3409         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
3410         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
3411         alpha_split_tmode_pair and adjust for above change.
3412         * config/alpha/alpha.md (movtf_internal): Adjust call to
3413         alpha_split_tfmode_pair and rely on it to swap the operands.
3414         (movti_internal): New insn and post-reload splitter.
3415         (movti): New expander.
3416
3417 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
3418
3419         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
3420         operands.
3421
3422 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
3423
3424         * rtlanal.c (global_reg_mentioned_p_1,
3425         global_reg_mentioned_p): Remove.
3426         * rtl.h: Remove the prototype for global_reg_mentioned_p.
3427
3428         * flow.c (initialize_uninitialized_subregs): Make it static.
3429         * rtl.h: Remove the prototype for
3430         initialize_uninitialized_subregs.
3431
3432         * function.c (instantiate_virtual_regs): Make it static.
3433         * function.h: Remove the prototype for
3434         instantiate_virtual_regs.
3435
3436         * regmove.c (regmove_optimize, combine_stack_adjustments):
3437         Make them static.
3438         * rtl.h: Remove the prototypes for regmove_optimize and
3439         combine_stack_adjustments.
3440
3441 2006-01-17  Roger Sayle  <roger@eyesopen.com>
3442
3443         * config/i386/i386.c (COSTS_N_BYTES): New macro.
3444         (size_cost): Encode costs in bytes so that a reg-reg addition is
3445         equivalent to COSTS_N_INSNS(1).
3446         (override_options): Use the size_cost.branch_cost as the default
3447         ix86_branch_cost when optimizing for size.
3448
3449 2006-01-18  Ben Elliston  <bje@au.ibm.com>
3450
3451         * Makefile.in (D32PBIT_FUNCS): New.
3452         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
3453         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
3454         D64PBIT_FUNCS and D128PBIT_FUNCS.
3455         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
3456         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
3457         D128PBIT are set.
3458         (decnumber_dep): Define.
3459         * doc/libgcc.texi (Decimal float library routines): New node.
3460         * config/dfp-bit.h, config/dfp-bit.c: New files.
3461
3462 2006-01-18  Ben Elliston  <bje@au.ibm.com>
3463
3464         * expr.c (emit_move_change_mode): Always adjust addresses, not
3465         just during reload.  Copy replacements only during reload.
3466         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
3467         emit_move_via_integer.
3468
3469 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
3470
3471         * Makefile.in (check-%, check-consistency): Use $${srcdir}
3472         instead of $(srcdir) and ${srcdir}.
3473
3474 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
3475
3476         PR target/592
3477         PR middle-end/11135
3478         * arm.h (struct machine_function): Add pic_reg.
3479         * arm.c (arm_pic_register): Make unsigned.
3480         (arm_override_options): Only set arm_pic_register if
3481         TARGET_SINGLE_PIC_BASE.
3482         (use_return_insn): Only test for a pic register if it is fixed.
3483         (arm_compute_save_reg0_reg12_mask): Likewise.
3484         (thumb_compute_save_reg_mask): Likewise.
3485         (legitimate_pic_operand): Factor out some known invariants.
3486         (legitimize_pic_address): If we don't have a fixed pic register,
3487         then set up a pseudo in the function entry sequence.  Handle the
3488         pic base being in a pseudo.
3489         (arm_load_pic_register): Handle the pic register being in a pseudo.
3490         (arm_expand_prologue): Only set up the pic register if it is fixed.
3491         (thumb_expand_prologue): Likewise.
3492         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
3493         (pic_load_addr_based_insn): Likewise.
3494         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
3495         fixed.
3496
3497 2006-01-18  Ben Elliston  <bje@au.ibm.com>
3498
3499         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
3500         decimal float modes for all floating point registers.
3501
3502         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
3503         match_code "mem" with match_test "macho_lo_sum_memory_operand".
3504
3505 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
3506
3507         PR c/25682
3508         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
3509         even when the pointer is not NULL.
3510
3511 2006-01-16  Ian Lance Taylor  <ian@airs.com>
3512
3513         * common.opt (ftoplevel-reorder): New option.
3514         * cgraph.c (cgraph_asm_nodes): New global variable.
3515         (cgraph_asm_last_node): New static variable.
3516         (cgraph_order): New global variable.
3517         (cgraph_create_node): Set new order field.
3518         (cgraph_varpool_node): Likewise.
3519         (decide_is_variable_needed): Return true if not
3520         flag_toplevel_reorder.
3521         (cgraph_add_asm_node): New function.
3522         * cgraph.h (struct cgraph_node): Add order field.
3523         (struct cgraph_varpool_node): Add order field.
3524         (struct cgraph_asm_node): Define.
3525         (cgraph_asm_nodes, cgraph_order): Declare.
3526         (cgraph_add_asm_node): Declare.
3527         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
3528         function.
3529         (cgraph_varpool_assemble_pending_decls): Call it.
3530         (cgraph_output_pending_asms): New static function.
3531         (cgraph_finalize_compilation_unit): Call it.
3532         (struct cgraph_order_sort): Define.
3533         (cgraph_output_in_order): New static function.
3534         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
3535         !flag_toplevel_reorder case.
3536         * c-parser.c: Include "cgraph.h".
3537         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
3538         assemble_asm.
3539         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
3540         than -fno-unit-at-a-time.
3541         * doc/invoke.texi (Option Summary): Mention
3542         -fno-toplevel-reorder.
3543         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
3544         -funit-at-a-time documentation.
3545
3546 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
3547             Kazu Hirata  <kazu@codesourcery.com>
3548
3549         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
3550
3551 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
3552
3553         * Makefile.in (FUNCTION_H): New.  Use it instead of
3554         function.h throughout the file.
3555         * function.h: Include tree.h.
3556
3557 2006-01-17  Ben Elliston  <bje@au.ibm.com>
3558
3559         * recog.c: Separate some functions with whitespace.
3560
3561 2006-01-16  Richard Henderson  <rth@redhat.com>
3562
3563         Merge from gomp branch:
3564         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
3565         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
3566         and rename from struct inline_data.  Rename callee* to dst*;
3567         caller* to src*; add copy_decl hook, transform_call_graph_edges,
3568         transform_new_cfg, transform_return_to_modify, and
3569         transform_lang_insert_block flags; remove cloning_p, versioning_p,
3570         update_clones_p.
3571         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
3572         (copy_decl_for_dup): Remove.
3573         * tree-inline.c (struct inline_data): Move to header.
3574         (insert_decl_map): Export.
3575         (remap_decl): Update for member name changes.  Use copy_decl hook.
3576         Allow for replacement to be a non-decl.  Remove dead code.
3577         (remap_type_1): Check for existing mapping.
3578         (remap_type): Export.
3579         (remap_decls): Update for member name changes.
3580         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
3581         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
3582         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
3583         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
3584         (tree_function_versioning, build_duplicate_type): Likewise.
3585         (copy_body_r): Likewise.  Export.
3586         (copy_decl_for_dup): Split into ...
3587         (copy_decl_for_dup_finish, copy_decl_to_var,
3588         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
3589         (replace_ref_tree, inlining_p): Remove.
3590
3591 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3592
3593         * ifcvt.c (if_convert): Make it static.
3594         * rtl.h: Remove the prototype for if_convert.
3595
3596         * local-alloc.c (local_alloc): Make it static.
3597         * rtl.h: Remove the prototype for local_alloc.
3598
3599         * loop.c (loop_optimize): Make it static.
3600         * cfgloop.h: Remove the prototype for loop_optimize.
3601         * rtl.h: Likewise.
3602
3603 2006-01-16  DJ Delorie  <dj@redhat.com>
3604
3605         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
3606         mems.
3607
3608 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3609
3610         * pa.md: Disparage copies between general and floating-point registers
3611         in 32-bit move patterns.
3612
3613 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
3614
3615         PR testsuite/25741
3616         * Makefile.in (check-%): Depend on site.exp instead of
3617         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
3618         directories.
3619
3620 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3621
3622         * global.c (global_alloc): Make it static.
3623         * rtl.h: Remove the prototype for global_alloc.
3624
3625 2006-01-16  Richard Guenther  <rguenther@suse.de>
3626
3627         * tree-ssa-alias.c (struct used_part): Add write_only field.
3628         (get_or_create_used_part_for): Initialize it to true.
3629         (create_overlap_variables_for): Don't create structure variables
3630         for structures that only are written to.
3631         (find_used_portions): Handle MODIFY_EXPR to track whether a
3632         structure is only written to.
3633
3634 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3635
3636         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
3637         static.
3638         * basic-block.h: Remove the prototype for
3639         partition_hot_cold_basic_blocks.
3640
3641 2006-01-16  Rafael Ãƒvila de Espíndola <rafael.espindola@gmail.com>
3642
3643         * cppspec.c (lang_specific_spec_functions): Remove.
3644         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
3645         * gcc.h (lang_specific_spec_functions): Remove.
3646         * gccspec.c (lang_specific_spec_functions): Remove.
3647
3648 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
3649
3650         * combine.c (record_value_for_reg): Invalidate registers
3651         if INSN is null.
3652         (record_dead_and_set_regs_1): Likewise, by passing them to
3653         record_value_for_reg.
3654         (record_dead_and_set_regs): Invalidate stores made by a
3655         call.  We do not combine across a call, but we still
3656         relied on equivalences.
3657
3658 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
3659
3660         * tree-vrp.c (extract_range_from_binary_expr): Cope with
3661         vrp_int_const_binop returning non-constant nodes.
3662
3663 2006-01-16  Paul Brook  <paul@codesourcery.com>
3664
3665         * config/m68k/m68k.c (output_move_const_into_data_reg):
3666         Output correct mnemonic for mvz and mvs.
3667
3668 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
3669
3670         * rtl-factoring.c: Add sequence abstraction algorithm.
3671         * cfgcleanup.c (outgoing_edges_match): Extra checks.
3672         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
3673         ABNORMAL edges.
3674         (block_has_preserve_label): New function.
3675         * common.opt: Register new pass.
3676         * Makefile.in: Ditto.
3677         * passes.c: Ditto.
3678         * timevar.def: Ditto.
3679         * tree-pass.h: Ditto.
3680         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
3681         * rtl.h (make_jump_insn_raw): Add forward decl.
3682         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
3683
3684 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
3685             Roger Sayle  <roger@eyesopen.com>
3686
3687         * fold-const.c (fold_minmax): New static function.
3688         (fold_binary) <MIN_EXPR>: Call it.
3689         <MAX_EXPR>: Likewise.
3690         * stor-layout.c (place_field): Use DECL_SIZE consistently
3691         in the computation of the new record size.
3692
3693 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
3694
3695         * cse.c (cse_condition_code_reg): Make it static.
3696         * rtl.h: Remove the prototype for cse_condition_code_reg.
3697
3698         * combine.c (combine_instructions): Make it static.
3699         * rtl.h: Remove the prototype for combine_instructions.
3700
3701 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3702
3703         PR target/25168
3704         * tree.c (get_file_function_name_long): Concatenate the first global
3705         object name with a string derived from the input filename of the object
3706         for type "F".
3707
3708 2006-01-16  Ben Elliston  <bje@au.ibm.com>
3709
3710         * config/i386/winnt-stubs.c: Update FSF address.
3711         * config/xtensa/ieee754-df.S: Ditto.
3712         * config/xtensa/ieee754-sf.S: Ditto.
3713
3714 2006-01-14  Ian Lance Taylor  <ian@airs.com>
3715
3716         * ifcvt.c (noce_init_if_info): New static function, broken out of
3717         noce_process_if_block.
3718         (noce_process_if_block): Call noce_init_if_info.
3719         (check_cond_move_block): New static function.
3720         (cond_move_process_if_block): New static function.
3721         (process_if_block): Call cond_move_process_if_block.
3722
3723 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
3724
3725         * cselib.c (hash_table): Rename to cselib_hash_table.
3726         (cselib_clear_table, discard_useless_values,
3727         remove_useless_values, cselib_lookup_mem, cselib_lookup,
3728         cselib_init, cselib_finish): Adjust uses of hash_table.
3729
3730 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
3731
3732         PR tree-optimization/25485
3733         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
3734         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
3735         is known to be false and true, respectively.
3736
3737 2006-01-14  Richard Guenther  <rguenther@suse.de>
3738
3739         PR tree-optimization/22548
3740         PR tree-optimization/22555
3741         PR tree-optimization/22501
3742         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
3743         * params.def (salias-max-array-elements): New parameter.
3744         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
3745         * doc/invoke.texi (salias-max-array-elements): Document.
3746         * tree-flow-inline.h (var_can_have_subvars): We also handle
3747         arrays now.
3748         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
3749         COMPONENT_REF.
3750         * tree-ssa-structalias.c (params.h): Include.
3751         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
3752         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
3753         (get_constraint_for): For ADDR_EXPR operating on something
3754         containing an ARRAY_REF, add all subvars to the solution.
3755         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
3756         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
3757         for creating MUST_DEFs.
3758         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
3759
3760 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
3761
3762         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
3763         functions.
3764         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
3765         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
3766         number_of_iterations_le): New functions.
3767         (number_of_iterations_special): Removed.
3768         (number_of_iterations_exit): Do not use number_of_iterations_special.
3769         * tree.c (unsigned_type_for): Always return integer type.
3770
3771 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
3772         Richard Guenther  <rguenther@suse.de>
3773
3774         PR rtl-optimization/24257
3775         * gcse.c (find_moveable_store): Only consider a store movable
3776         when the SET_SRC of the insn can be assigned to a register.
3777
3778 2006-01-14  Ian Lance Taylor  <ian@airs.com>
3779
3780         * tree.c (tree_not_class_check_failed): New function.
3781         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
3782         (tree_not_class_check_failed): Declare.
3783
3784 2006-01-13  Ian Lance Taylor  <ian@airs.com>
3785
3786         * reload1.c (do_output_reload): Add assertion rejecting a
3787         CALL_INSN.
3788
3789 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
3790
3791         * combine.c (struct reg_stat): Add new fields truncation_label and
3792         truncated_to_mode.
3793         (record_value_for_reg): Reset truncated_to_mode.
3794         (record_truncated_value): New function.
3795         (check_promoted_subreg): Call it.  Rename to check_conversions.
3796         (combine_instructions): Rename check_promoted_subreg to
3797         check_conversions.
3798         (reg_truncated_to_mode): New function.
3799         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
3800         (gen_lowpart_or_truncate): New function.
3801         (force_to_mode): Use it instead of gen_lowpart.
3802
3803 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
3804
3805         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
3806         VAR is a tag, not its type tag.
3807
3808 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
3809
3810         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
3811         alternatives to match style of other entries.
3812         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
3813
3814 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
3815
3816         PR tree-optimization/25771
3817         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
3818         SSA_NAMES.
3819
3820 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
3821
3822         PR tree-opt/24365
3823         * tree-inline.c (declare_return_variable): If the return variable
3824         was marked as a non gimple complex, set the return slot variable
3825         to be a non gimple comple variable.
3826
3827 2006-01-13  Richard Guenther  <rguenther@suse.de>
3828
3829         * builtins.c (expand_builtin_sincos): New function.
3830         (expand_builtin_mathfn_3): Remove dead code, sin and cos
3831         do not set errno.
3832         (expand_builtin): Expand sincos using expand_builtin_sincos.
3833
3834 2006-01-12  DJ Delorie  <dj@redhat.com>
3835
3836         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
3837         shift counts, separate SI shifts for m32c vs m16c, pass shift type
3838         so that constant shifts can be split.
3839         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
3840         (m32c_valid_pointer_mode): Make static.
3841         (shift_gen_func_for): New.
3842         (m32c_prepare_shift): Use it.  Split large const shifts into
3843         multiple shifts.
3844         * config/m32c/predicates.md (shiftcount_operand): Allow more
3845         general operands.
3846         (longshiftcount_operand): New.
3847         * doc/md.texi (Machine Constraints): Document In6.
3848
3849 2006-01-13  Ben Elliston  <bje@au.ibm.com>
3850
3851         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
3852         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
3853         documentation.
3854
3855 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
3856
3857         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
3858         to try to avoid clobbering pieces of structures when we know
3859         something about the whole structure.
3860         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
3861
3862 2006-01-13  Ben Elliston  <bje@au.ibm.com>
3863
3864         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
3865         return in memory, as this is no limitation is no longer present.
3866
3867 2006-01-12  DJ Delorie  <dj@redhat.com>
3868
3869         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
3870         mova with fb, and for fb+0 -> An.
3871
3872         * config/m32c/mov.md (peephole2): Fix enabling logic.
3873
3874         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
3875         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
3876         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
3877         FINI_ARRAY_SECTION_ASM_OP): Define.
3878
3879         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
3880         variable.
3881         (m32c_legitimize_reload_address): New logic to reload FB to An.
3882         (m32c_output_reg_push): Add newline.
3883         (m32c_output_reg_pop): Likewise.
3884
3885 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
3886
3887         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
3888
3889 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
3890
3891         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
3892
3893 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
3894
3895         * config/sh/predicates.md (sh_rep_vec): Add parallel to
3896         match_code.
3897
3898 2006-01-11  Ben Elliston  <bje@au.ibm.com>
3899
3900         * rtlanal.c (find_reg_note): Assert insn is not null.
3901
3902 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
3903
3904         * df-scan.c (df_hard_reg_init): Move declaration of i outside
3905         ifdef.
3906
3907 2006-01-11  Jeff Law  <law@redhat.com>
3908
3909         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
3910         hold edge pairs.
3911         (mark_threaded_blocks, register_jump_thread): New functions.
3912         (thread_through_all_blocks): Remove unwanted argument.  No
3913         longer rely on e->aux to communicate thread target info.
3914         Call mark_threaded_blocks.  Release the threaded_blocks
3915         bitmap and threaded_edges vector when complete.
3916         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
3917         (threaded_blocks): Remove.
3918         (tree_ssa_dominator_optimize): Remove initialization and
3919         finalization of threaded_blocks.  Simplify call to
3920         thread_through_all_blocks.
3921         (thread_across_edge): Call register_jump_thread rather than
3922         storing thread information into e->aux.
3923         (free_all_edge_infos): Simplify now that e->aux is no longer
3924         used to communicate with thread_through_all_blocks.
3925         * tree-flow.h (thread_through_all_blocks): Update prototype.
3926         (register_jump_thread): Prototype.
3927
3928 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
3929
3930         * df-core.c (df_compact_blocks, df_bb_replace): Use
3931         SET_BASIC_BLOCK instead of BASIC_BLOCK.
3932
3933 2006-01-11  Richard Guenther  <rguenther@suse.de>
3934
3935         PR tree-optimization/25734
3936         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
3937         stop propagation after successful propagation to the LHS.
3938
3939 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
3940
3941         * basic-block.h (control_flow_graph): Change the type of
3942         x_basic_block_info to VEC(basic_block,gc) *.
3943         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
3944         basic_block_info.
3945         (SET_BASIC_BLOCK): New.
3946         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
3947         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
3948         * cfgbuild.c (find_basic_blocks): Likewise.
3949         * cfglayout.c (fixup_reorder_chain): Likewise.
3950         * cfgrtl.c (create_basic_block_structure,
3951         rtl_create_basic_block): Likewise.
3952         * ifcvt.c (find_if_case_1): Likewise.
3953         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
3954         Likewise.
3955
3956 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
3957
3958         * Makefile.in: Removed rotted odf.c entry.
3959
3960 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
3961
3962         PR target/25706
3963         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
3964         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
3965         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
3966         output pattern modifier, not %e.
3967         * config/cris/cris.c (cris_op_str): Update comment about pattern
3968         modifier.
3969         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
3970         before falling through into...
3971         <case 'E'>: Redefined from old 'e' case.
3972
3973 2006-01-11  Jan Hubicka  <jh@suse.cz>
3974
3975         PR target/25042
3976         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
3977
3978 2006-01-11  Jan Hubicka  <jh@suse.cz>
3979
3980         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
3981         * i386.c (x86_decompose_lea): Kill.
3982         (ix86_rtx_costs): Kill.
3983
3984 2006-01-11  Jan Hubicka  <jh@suse.cz>
3985
3986         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
3987         * cgraph.h (cgraph_node): Add inline_decl.
3988         (cgraph_insert_node_to_hashtable): Declare.
3989         (save_inline_function_body): Declare.
3990         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
3991         clones.
3992         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
3993         (cgraph_function_versioning): Update call of tree_function_versioning.
3994         (save_inline_function_body): New function.
3995         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
3996         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
3997         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
3998         (cgraph_default_inline_p): Likewise.
3999         (cgraph_decide_inlining_incrementally): Likewise.
4000         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
4001         (copy_bb): Kill saving; do updating of clones.
4002         (copy_cfg_body): Kill saving.
4003         (initialize_inlined-parameters): Likewise.
4004         (expand_call_inline): Likewise.
4005         (save_body): Kill.
4006         (tree_function_versioning): New parameter "update_clones".
4007         (inlining_p): Kill saving.
4008         * tree-inline.h (tree_function_versioning): Update prototype.
4009         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
4010         saving.
4011
4012 2006-01-11  Ian Lance Taylor <ian@airs.com>
4013
4014         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
4015         Allow undoing set of machine mode.
4016         (do_SUBST): Use enums instead of is_int.
4017         (do_SUBST_MODE): New function.
4018         (SUBST_MODE): New macro.
4019         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
4020         reg and trying to replace reg_regno_rtx with a new register.
4021         (undo_all): Use new enums, handle undoing a PUT_MODE change.
4022         (simplify_set): Use SUBST_MODE.
4023         (distribute_notes): Remove code that tried to update reg notes
4024         for regno_reg_rtx changes.
4025
4026 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
4027
4028         PR tree-optimization/23109
4029         PR tree-optimization/23948
4030         PR tree-optimization/24123
4031
4032         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
4033         * tree-cfg.c (single_noncomplex_succ): New.
4034         * tree-flow.h (single_noncomplex_succ): Declare it.
4035         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4036         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
4037         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
4038         insert_bb, register_division_in, insert_reciprocals,
4039         replace_reciprocal, free_bb): New.
4040         (execute_cse_reciprocals_1): Rewritten.
4041         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
4042         Do not commit any edge insertion.  Always compute dominators and
4043         create the allocation pool.
4044         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
4045         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
4046         * targhooks.c (default_min_divistions_for_recip_mul): New.
4047         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
4048         * passes.c (init_optimization_passes): Run recip after tree loop
4049         optimizations.
4050         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
4051
4052 2006-01-11  Danny Berlin <dberlin@dberlin.org>
4053             Kenneth Zadeck <zadeck@naturalbridge.com>
4054
4055         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
4056         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
4057         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
4058         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
4059         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
4060         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
4061         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
4062         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
4063         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
4064         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
4065         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
4066         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
4067         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
4068         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
4069         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
4070         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
4071         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
4072         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
4073         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
4074         DF_SCAN_POST_ALLOC): New macros.
4075         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
4076         df_free_bb_function, df_local_compute_function, df_init_function,
4077         df_dataflow_function, df_confluence_function_0,
4078         df_confluence_function_n, df_transfer_function,
4079         df_finalizer_function, df_free_function, df_dump_problem_function,
4080         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
4081         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
4082         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
4083         df_urec_bb_info, ) New types.
4084         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
4085         variables.
4086         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
4087         df_analyze_simple_change_some_blocks,
4088         df_analyze_simple_change_one_block, df_compact_blocks,
4089         df_bb_replace, df_bb_regno_last_use_find,
4090         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
4091         df_insn_regno_def_p, df_find_def, df_find_use,
4092         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
4093         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
4094         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
4095         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
4096         debug_df_chain, df_get_dependent_problem, df_chain_create,
4097         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
4098         df_grow_bb_info, df_chain_dump, df_print_bb_index,
4099         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
4100         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
4101         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
4102         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
4103         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
4104         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
4105         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
4106         df_ref_remove, df_insn_refs_delete, df_refs_delete,
4107         df_reorganize_refs, df_set_state, df_hard_reg_init,
4108         df_read_modify_subreg_p) New public functions.
4109         * df-core.c: The core dataflow solver and glue routines for rtl
4110         dataflow.
4111         (df_init, df_add_problem, df_set_blocks, df_finish,
4112         df_hybrid_search_forward, df_hybrid_search_backward,
4113         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
4114         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
4115         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
4116         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
4117         df_reg_defined, df_find_use, df_reg_used, df_dump,
4118         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
4119         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
4120         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
4121         debug_df_useno, reset_df_after_reload): New functions.
4122         * df-scan.c: The scanning fuctions, once in df.c, completely
4123         rewritten so that they now fully model the functionality of
4124         register usage at the backend.
4125         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
4126         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
4127         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
4128         df_grow_insn_info, df_rescan_blocks, df_ref_create,
4129         df_get_artificial_defs, df_get_artificial_uses,
4130         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
4131         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
4132         df_refs_delete, df_reorganize_refs, df_set_state,
4133         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
4134         df_def_record_1, df_defs_record, df_uses_record,
4135         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
4136         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
4137         df_record_exit_block_uses, df_hard_reg_init): New functions.
4138
4139         * df-problems.c: Seven concrete dataflow problems that use the
4140         scanning in df-scan.c and are solved by the engine in df-core.c.
4141         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
4142         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
4143         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
4144         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
4145         df_ru_free_bb_info, df_ru_alloc,
4146         df_ru_bb_local_compute_process_def,
4147         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
4148         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
4149         df_ru_transfer_function, df_ru_free, df_ru_dump,
4150         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
4151         df_rd_free_bb_info, df_rd_alloc,
4152         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
4153         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
4154         df_rd_transfer_function, df_rd_free, df_rd_dump,
4155         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
4156         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
4157         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
4158         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
4159         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
4160         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
4161         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
4162         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
4163         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
4164         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
4165         df_urec_mark_reg_change, df_urec_check_earlyclobber,
4166         df_urec_mark_reg_use_for_earlyclobber,
4167         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
4168         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
4169         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
4170         df_urec_dump, df_urec_add_problem, df_chain_alloc,
4171         df_chain_create_bb_process_use, df_chain_create_bb,
4172         df_chain_finalize, df_chain_free, df_chains_dump,
4173         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
4174         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
4175         df_reg_lifetime): New functions.
4176         * df.c: Deleted file.
4177         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
4178         consistent with new df api.
4179         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
4180         rest_of_handle_sms): Ditto.
4181         * web.c (unionfind_union, union_defs, entry_register, web_main):
4182         Ditto.
4183         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
4184         invariant_expr_equal_p, find_defs, check_dependencies,
4185         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
4186         free_inv_motion_data, move_loop_invariants): Ditto.
4187         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
4188         Update dependencies.
4189         (odf.c): Added defective entry that was deleted later in day.
4190         * sched-deps.c (sched_analyze_1): Ditto.
4191
4192 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
4193
4194         * tree-ssa-operands.c (get_expr_operands): Record addressable
4195         variables directly.  Do not call add_stmt_operands for CONST_DECLs
4196         and ARRAY_DECLs.
4197         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
4198         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
4199
4200 2006-01-11  Ben Elliston  <bje@au.ibm.com>
4201
4202         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
4203         function returns true in the positive case.
4204
4205 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4206
4207         PR target/20754
4208         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
4209         for SI, DI, SF and DF modes.  Add alternatives to copy between
4210         general and floating point registers to the 32-bit patterns.
4211         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
4212         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
4213         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
4214         generating 64-bit code.
4215         * config/pa/pa.c (output_move_double): Handle copies between general
4216         and floating registers.
4217
4218 2006-01-10  Stuart Hastings  <stuart@apple.com>
4219
4220         * config/i386/i386.md (set_got): Update.
4221         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
4222         (builtin_setjmp_receiver): Mach-O support.
4223         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
4224         (GOT_SYMBOL_NAME): Define.
4225         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
4226         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
4227         * config/i386/i386.c (override_options): Revise for Darwin.
4228         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
4229         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
4230         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
4231         * config/i386/i386-protos.h (output_set_got): Likewise.
4232         * config/darwin.c (machopic_legitimize_pic_address): Update
4233         regs_ever_live[].
4234
4235 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
4236
4237         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
4238         when MODE isn't BLKmode.
4239
4240 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
4241
4242         PR rtl-optimization/25367
4243         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
4244
4245 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
4246
4247         PR target/25718
4248         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
4249         for a negative bound.
4250
4251 2006-01-10  Richard Guenther  <rguenther@suse.de>
4252
4253         * tree-ssa-structalias.c (get_constraint_for_component_ref):
4254         Never override with anything constraint.
4255
4256 2006-01-10  Jan Beulich  <jbeulich@novell.com>
4257
4258         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
4259         256 bits when optimize_size.
4260
4261 2006-01-10  Jan Beulich  <jbeulich@novell.com>
4262
4263         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
4264         MASK_ALIGN_DOUBLE.
4265         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
4266         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
4267         arguments.
4268
4269 2006-01-10  Ben Elliston  <bje@au.ibm.com>
4270
4271         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
4272         float modes.
4273         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
4274         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
4275         (USE_FP_FOR_ARG): Reject decimal float modes.
4276         (function_arg_advance): Likewise.
4277         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
4278         (rs6000_handle_altivec_attribute): Do not permit decimal floating
4279         point types in AltiVec vectors.
4280         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
4281         (rs6000_libcall_value): Likewise.
4282
4283 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
4284
4285         * config/xtensa/ieee754-df.S: New file.
4286         * config/xtensa/ieee754-sf.S: New file.
4287         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
4288         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
4289         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
4290
4291 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
4292
4293         * config/sh/predicates.md (binary_float_operator,
4294         binary_logical_operator, commutative_float_operator,
4295         equality_comparison_operator, greater_comparison_operator,
4296         less_comparison_operator, logical_operator,
4297         noncommutative_float_operator, shift_operator,
4298         symbol_ref_operand, unary_float_operator): Remove redundant
4299         conditionals.
4300
4301 2006-01-09  Jeff Law  <law@redhat.com>
4302
4303         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
4304         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
4305         now unused arguments.  Callers updated.
4306         (eliminate_redundant_computations): Remove now unused arguments,
4307         callers updated.
4308         (local_fold): Remove, no longer used.
4309         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
4310         and moved to...
4311         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
4312         (simplify_cond): New function.
4313         (forward_propagate_into_cond): Call simplify_cond.
4314
4315 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
4316
4317         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
4318         (*vec_extractv2di_1_sse): New.
4319
4320 2006-01-09  Ben Elliston  <bje@au.ibm.com>
4321
4322         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
4323
4324 2006-01-08  Richard Guenther  <rguenther@suse.de>
4325
4326         * tree-ssa-structalias.c (get_constraint_for): Remove
4327         anyoffset argument.
4328         (get_constraint_for_component_ref): Likewise.
4329         (do_deref): Likewise.
4330         (get_constraint_for): Likewise.
4331         (do_structure_copy): Likewise.
4332         (handle_ptr_arith): Likewise.
4333         (find_func_aliases): Likewise.  Remove unused need_anyoffset
4334         variable.
4335
4336 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
4337             Kaz Kojima  <kkojima@gcc.gnu.org>
4338
4339         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
4340         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
4341         (EXTRA_CONSTRAINT_C16): Remove.
4342         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
4343         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
4344         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
4345         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
4346         constants of SHmedia.  Handle nested constant expressions of
4347         SHmedia correctly.
4348         (andcosts): Fix the costs for SHmedia constants.
4349         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
4350         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
4351         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
4352         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
4353         (movv4hi_i, movv2si_i): Likewise.
4354         (movsi_const): Adjust the second operand of ior so to match with
4355         the Csu constraint.
4356         (movdi_const, movdi_const_32bit): Likewise.
4357         (movdi_const_16bit+1): Don't sign-extend LOW.
4358         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
4359         step.
4360         (*double_shori): Fix the split condition.  Use GEN_INT instead
4361         of get_int_mode calls.  Mask lower 16-bit of the argument of
4362         the last GEN_INT.
4363         (sym2GOTPLT): Remove.
4364         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
4365         gen_rtx_UNSPEC.
4366         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
4367         instead of EXTRA_CONSTRAINT_C16.
4368
4369 2006-01-07  Ian Lance Taylor  <ian@airs.com>
4370             David Edelsohn  <edelsohn@gnu.org>
4371
4372         PR rtl-optimization/25662
4373         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
4374         for constant operands instead of simplify_gen_binary.
4375         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
4376         after trying simplify_binary_operation
4377
4378 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
4379
4380         * tree.c (iterative_hash_expr): Hash decls based on UID.
4381
4382 2006-01-06  Eric Christopher  <echristo@apple.com>
4383
4384         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
4385         (TARGET_UNWIND_EMIT): Fix spelling.
4386         * target.h (gcc_target): Add except_table_label.
4387         * except.c (output_function_exception_table): Use.
4388         * varasm.c (default_emit_except_table_label): New.
4389         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
4390         define.
4391         (asm_out): Add here.
4392         * output.h (default_emit_except_table_label): Prototype.
4393         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
4394         * config/darwin.c (darwin_emit_except_table_label): Define.
4395         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
4396
4397 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
4398
4399         PR tree-optimization/18527
4400         * tree-ssa-loop-niter.c (number_of_iterations_cond,
4401         number_of_iterations_special, number_of_iterations_exit):
4402         Move base and step of an iv to a single structure.  Add
4403         no_overflow flag, and use it in # of iterations analysis.
4404         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
4405         folded_casts argument.
4406         (simple_iv): Pass base and step in a structure.  Set no_overflow
4407         flag.
4408         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
4409         Evaluate expensiveness of computing # of iterations instead of
4410         the final expression.
4411         * tree-scalar-evolution.h (affine_iv): New structure.
4412         (simple_iv): Declaration changed.
4413         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
4414         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
4415         find_givs_in_stmt): Changed due to simple_iv change.
4416
4417 2006-01-06  Jeff Law  <law@redhat.com>
4418
4419         PR ada/24994
4420         * tree-cfg.c (bsi_replace): Rename final argument from
4421         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
4422         change (stmt -> orig_stmt).
4423         * tree-eh.c (verify_eh_throw_stmt_node): New function.
4424         (bsi_remove): Add new argument.  Remove EH information
4425         if requested.
4426         (verify_eh_throw_table_statements): New function.
4427         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
4428         updated.
4429         * tree-optimize.c (execute_free_cfg_annotations): Verify
4430         the EH throw statement table after removing annotations.
4431         * except.h (verify_eh_throw_table_statements): Prototype.
4432         * tree-flow.h (bsi_remove): Update prototype.
4433         * tree-vrp.c (remove_range_assertions): Add new argument to
4434         bsi_remove call.
4435         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
4436         * tree-complex.c (expand_complex_div_wide): Likewise.
4437         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
4438         * tree-tailcall.c (eliminate_tailcall): Likewise.
4439         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
4440         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
4441         * tree-nrv.c (tree_nrv): Likewise.
4442         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
4443         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
4444         (combine_blocks): Likewise.
4445         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
4446         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
4447         (cleanup_control_flow): Likewise.
4448         (remove_forwarder_block): Likewise.
4449         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
4450         * tree-sra.c (sra_replace): Likewise.
4451         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
4452         (forward_propagate_single_use_vars): Likewise.
4453         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
4454         * tree-inline.c (expand_call_inline): Likewise.
4455         * tree-vect-transform.c (vect_transform_loop): Likewise.
4456         * tree-outof-ssa.c (rewrite_trees): Likewise.
4457         * tree-cfg.c (make_goto_expr_edges): Likewise.
4458         (cleanup_dead_labels): Likewise.
4459         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
4460         (bsi_move_before, bsi_move_after): Likewise.
4461         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
4462         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
4463
4464 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
4465
4466         PR tree-opt/25528
4467         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
4468         and IMAGPART_EXPR.
4469         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
4470         on non gimple variables.  Also add checks at the top for decls and
4471         mtags.
4472         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
4473         complex types.
4474         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
4475         and IMAGPART_EXPR for creating MUST_DEFs.
4476         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
4477         and NAME_MEMORY_TAG separately from the DECLs.
4478
4479 2006-01-06  Richard Guenther  <rguenther@suse.de>
4480
4481         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
4482         annotation, if necessary.
4483         * tree-ssa-pre.c (create_expression_by_pieces): Remove
4484         redundant calls to update_stmt.
4485         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
4486         Likewise.
4487
4488 2006-01-05  Richard Henderson  <rth@redhat.com>
4489
4490         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
4491
4492 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
4493
4494         * c-typeck.c: Update copyright date.
4495
4496 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
4497
4498         * c-typeck.c (build_c_cast): Always warn when casting
4499         from a pointer to an integer of different size, even if
4500         the node was constant.
4501
4502 2006-01-05  Richard Guenther  <rguenther@suse.de>
4503
4504         PR tree-optimization/22555
4505         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
4506         if one structure field is an array.
4507         * tree-ssa-operands.c (get_expr_operands): Continue scanning
4508         operands even if we found a subvar, but ignore VOPs in this
4509         case.
4510         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
4511         for renaming.
4512         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
4513
4514 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
4515
4516         PR middle-end/24998
4517         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
4518
4519 2006-01-05  Richard Guenther  <rguenther@suse.de>
4520             Diego Novillo  <dnovillo@redhat.com>
4521
4522         * tree-pass.h (TODO_remove_unused_locals): Define.
4523         * gimple-low.c (expand_var_p, remove_useless_vars,
4524         pass_remove_useless_vars): Remove.  Update all users.
4525         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
4526         (remove_unused_locals): New function.
4527         * tree-flow.h (remove_unused_locals): Declare.
4528         * passes.c (execute_todo): Call remove_unused_locals if
4529         TODO_remove_unused_locals is set.
4530         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
4531         * tree-ssa-dce.c (pass_dce): Likewise.
4532         * tree-outof-ssa.c (pass_del_ssa): Likewise.
4533
4534 2006-01-05  Richard Guenther  <rguenther@suse.de>
4535
4536         * tree-flow.h (struct fieldoff): Decompose field to
4537         type, size and decl.
4538         * tree-ssa-alias.c (create_sft): Take type as parameter.
4539         (create_overlap_variables_for): Store type, size and decl
4540         in the fieldoff structure.
4541         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
4542         of struct fieldoff.
4543         (push_fields_onto_fieldstack): Likewise.
4544         (create_variable_info_for): Likewise.  Use offset for the
4545         SFT name if the decl is not available.
4546
4547 2006-01-04  Paul Brook  <paul@codesourcery.com>
4548
4549         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
4550
4551 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
4552
4553         * lambda-code.c (can_put_in_inner_loop): Relax
4554         restrictions.
4555         (can_put_after_inner_loop): New function.
4556         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
4557         (perfect_nestify): Change to make copies and modify uses.
4558
4559 2006-01-04  Richard Henderson  <rth@redhat.com>
4560
4561         Merge from gomp branch:
4562         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
4563         via integer constant.
4564         (pragma_lex): Remove.
4565         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
4566         rather than parsing it.
4567         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
4568         handle_pragma_extern_prefix): Add %< %> quotes.
4569         (registered_pragmas): New.
4570         (c_register_pragma_1): New.
4571         (c_register_pragma): Use it.
4572         (c_register_pragma_with_expansion): Likewise.
4573         (c_invoke_pragma_handler): New.
4574         (init_pragma): Use cpp_register_deferred_pragma directly for
4575         pch_preprocess.
4576         * c-pragma.h (enum pragma_kind): New.
4577         (pragma_handler): New.
4578         (c_invoke_pragma_handler): Declare.
4579         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
4580         CPP_PRAGMA_EOL.
4581         * c-common.h (c_common_pch_pragma): Update decl.
4582         * Makefile.in (c-parser.o): Update dependencies.
4583         (GTFILES): Add c-pragma.h.
4584         * c-parser.c (struct c_token): Add pragma_kind.
4585         (struct c_parser): Add in_pragma.
4586         (c_lex_one_token): Always initialize keyword and pragma_kind.
4587         Extract data for CPP_PRAGMA.
4588         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
4589         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
4590         Don't allow CPP_PRAGMA_EOL if in_pragma.
4591         (c_parser_consume_pragma): New.
4592         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
4593         (c_parser_skip_to_end_of_parameter): Likewise.
4594         (c_parser_skip_to_end_of_block_or_statement): Likewise.
4595         (c_parser_skip_to_pragma_eol): New.
4596         (c_parser_external_declaration): Handle CPP_PRAGMA.
4597         (c_parser_compound_statement_nostart): Likewise.
4598         (c_parser_statement_after_labels): Likewise.
4599         (c_parser_pragma): New.
4600         (pragma_lex): Likewise.
4601         (c_parser_pragma_pch_preprocess): New.
4602         (c_parser_new): Merge into ...
4603         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
4604
4605 2006-01-04  Jeff Law  <law@redhat.com>
4606
4607         PR ada/24994
4608         * tree-cfg.c (bsi_replace): Remove the original statement
4609         from the EH throw statement table.
4610
4611 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
4612
4613         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
4614         make the prototype extern "C" and add throw ().
4615
4616         PR target/25554
4617         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
4618         and pos non-negative and pos + len <= 32.
4619         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
4620         drop pos + len < HOST_BITS_PER_WIDE_INT test.
4621         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
4622
4623         PR c/25559
4624         * c-common.c (handle_vector_size_attribute): Reject zero vector size
4625         as well as sizes not multiple of component size.
4626
4627         PR debug/25562
4628         * function.c (instantiate_expr): New function.
4629         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
4630         walk its DECL_VALUE_EXPR with instantiate_expr.
4631
4632         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
4633         DW_OP_deref{,_size} if address isn't going to be added.
4634
4635 2006-01-04  Ben Elliston  <bje@au.ibm.com>
4636
4637         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
4638         * config/fp-bit.c: Likewise.
4639
4640 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
4641
4642         * dominance.c: Add comment about why we use DFS numbering
4643         of dominance tree.
4644
4645 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
4646             Richard Henderson  <rth@redhat.com>
4647
4648         Merge from gomp-branch:
4649         * varasm.c (assemble_variable): Handle thread-local COMMON data.
4650         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
4651
4652 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
4653
4654         PR rtl-optimization/25578
4655         * combine.c (combine_simplify_rtx, force_to_mode): Don't
4656         pass a parameter to simplify_shift_const if changing ASHIFTRT
4657         to LSHIFTRT.
4658
4659 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
4660
4661         * builtins.c (get_builtin_sync_mem): New function.
4662         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
4663         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
4664         Call get_builtin_sync_mem to generate mem rtx.
4665
4666 2006-01-03  Richard Guenther  <rguenther@suse.de>
4667
4668         PR c/25183
4669         * stmt.c (add_case_node): Make sure to clear overflow flags
4670         from ranges.
4671
4672 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
4673
4674         Merge from gomp-branch.
4675         * config/sparc/sync.md: New file.
4676         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
4677         UNSPECV_LDSTUB): New constants.
4678         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
4679         * config/sparc/predicates.md (memory_reg_operand): New predicate.
4680         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
4681         prototype.
4682
4683 2006-01-03  Roger Sayle  <roger@eyesopen.com>
4684
4685         * combine.c (reg_subword_p): New predicate to test whether the
4686         destination of a set refers to a subword/piece of a register.
4687         (try_combine): Generalize the code to merge the setting of a
4688         pseudo to a constant followed by a set of a subword of that
4689         register to a constant.
4690
4691 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
4692
4693         * basic-block.h (control_flow_graph): Change the type of
4694         x_label_to_block_map to VEC(basic_block,gc) *.
4695         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
4696         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
4697
4698         * tree-ssa-propagate.c (cfg_blocks): Change the type to
4699         VEC(basic_block,heap) *.
4700         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
4701         ssa_prop_fini): Adjust the uses of cfg_blocks.
4702
4703 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
4704
4705         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
4706         COMPONENT_REFs.
4707         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
4708         hashing trees instead of a pointer hash.
4709         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
4710         compare for MEM_EXPR.
4711
4712         PR rtl-optimization/25130
4713         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
4714         when comparing MEMs for GCSE
4715
4716 2006-01-03  Ben Elliston  <bje@au.ibm.com>
4717
4718         * targhooks.h (default_decimal_float_supported_p): Declare.
4719         * targhooks.c (default_decimal_float_supported_p): Define.
4720         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
4721         `default_decimal_float_supported_p'.
4722         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
4723
4724 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
4725
4726         * combine.c (apply_distributive_law <SUBREG>): Check
4727         TRULY_NOOP_TRUNCATION.
4728
4729 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
4730
4731         * dwarf2out.c (have_switched_text_section): Delete.
4732         (have_multiple_function_sections): New.
4733         (have_location_lists): Make 'bool'.
4734         (add_AT_loc_list): Use 'true' not '1'.
4735         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
4736         (output_loc_list): Use have_multiple_function_sections.
4737         (output_ranges): Likewise.
4738         (dwarf2out_begin_function): Set have_multiple_function_sections if
4739         necessary.
4740         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
4741         Check function_section rather than DECL_SECTION_NAME.
4742         (dwarf2out_finish): Use have_multiple_function_sections.
4743         Don't clear have_location_lists.
4744
4745 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
4746             Jan Hubicka  <jh@suse.cz>
4747
4748         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
4749         case of conditional jump jumping to the next instruction.
4750         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
4751         cases of conditional jump jumping to the next instruction.
4752
4753 2006-01-02  Jan Hubicka  <jh@suse.cz>
4754
4755         * i386.c (*_cost): Add COSTS_N_INSNS.
4756         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
4757
4758 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
4759
4760         PR target/25259
4761         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
4762
4763 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
4764
4765         * config/arm/arm.c (all_fpus): Fix comment typo.
4766         * config/darwin.c: Likewise.
4767         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
4768         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
4769         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
4770
4771 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
4772
4773         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
4774         (rs6000_split_compare_and_swapqhi): New.
4775         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
4776         (sync_compare_and_swapqhi_internal): New.
4777         * config/rs6000/rs6000-protos.h: Declare.