OSDN Git Service

2006-03-13 Paul Thomas <pault@gcc.gnu.org>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
2
3         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
4         (*branch_fp_inverted): Likewise.
5
6 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
7
8         PR middle-end/25989
9         * omp-low.c (expand_omp_for_generic): Mark istart0
10         and iend0 as addressable.
11
12 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
13
14         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
15
16 2006-03-13  Jeff Law  <law@redhat.com>
17
18         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
19         virtual operands are interesting.
20         (vrp_visit_stmt): Corresponding changes.
21
22 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
23
24         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
25         of RETS.
26         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
27         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
28         * config/bfin/crti.S: Use it instead of __PIC__.
29         * config/bfin/crtn.S: Likewise.
30
31         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
32         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
33         not if flag_pic.
34         Lose 'G' modifier for call operand.
35         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
36         recognize 'G' modifier.
37
38 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
39
40         PR middle-end/18859
41         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
42         * stmt.c (expand_case): Likewise.
43
44 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
45
46         PR rtl-optimization/26254
47         * loop-invariant.c (seq_insns_valid_p): New function.
48         (move_invariant_reg): Only emit new code if it is valid.
49
50 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
51
52         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
53         Removed.
54         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
55         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
56         (commit_one_edge_insertion): Do not look for loop notes.
57
58 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
59
60         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
61         flag_test_coverage out of loop.
62
63 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
64
65         * final.c (shorten_branches): Remove outdated comment, and turn
66         the if branch that guards it to continue.
67
68 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
69
70         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
71         * cfgloop.h (struct loop): Remove unused fields.
72
73 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
74
75         * doc/invoke.texi (-fdump-rtl-loop): Remove.
76         (-dL, -fdump-rtl-loop2): Update the dump file names 
77
78         * doc/invoke.texi: Update dump file names.
79
80 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
81
82         * predict.c (estimate_probability): Remove.
83         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
84         * basic-block.h (estimate_probability): Remove prototype.
85         * passes.c (finish_optimization_passes): Dump branch prediction or
86         profiling heuristics to the .profile tree dump.
87         (init_optimization_passes): Unqueue pass_branch_prob.
88
89         * doc/invoke.texi (-fdump-rtl-bp): Remove.
90
91 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
92
93         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
94         * rtl.h (LABEL_NEXTREF): Remove field accessor.
95
96 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
97
98         * function.h (frame_offset_overflow): Declare.
99         * function.c (frame_offset_overflow): New function.
100         (assign_stack_local_1): Call it to detect that the offset overflows.
101         * cfgexpand.c (alloc_stack_frame_space): Likewise.
102
103 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
104
105         * config/sh/sh.c: Include alloc-pool.h.
106         (label_ref_list_pool): New alloc pool.
107         (label_ref_list_t): New type for lists of labels.
108         (struct pool_node): Make wend a label_ref_list_t.
109         (add_constant): Use the new type, eradicate LABEL_NEXTREF
110         references.
111         (dump_table): Likewise.
112         (sh_reorg): Set up the alloc pool before using add_constant and
113         dump_table, and destroy it when finishing.
114
115 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
116
117         * config/mips/mips.c: Remove redundant comment.
118
119 2006-03-10  Jason Merrill  <jason@redhat.com>
120
121         PR c/26004
122         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if 
123         the target was declared 'register'.
124
125 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
126
127         * genpreds.c (write_insn_constraint_len): Change definition of
128         insn_constraint_len to return size_t to match the declaration.
129
130 2006-03-10  DJ Delorie  <dj@redhat.com>
131
132         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
133         start at zero.
134         (m32c_expand_insv): Fix test for an AND mask.
135
136 2006-03-10  Richard Guenther  <rguenther@suse.de>
137
138         PR middle-end/26565
139         * builtins.c (get_pointer_alignment): Handle component
140         references for field alignment.
141
142 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
143
144         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
145         when building with libgloss.
146         (sh*elf): Implement --without-fp option.
147         (sh64-superh-linux*): Don't multilib. 
148
149 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
150
151         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
152
153 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
154
155         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
156         Set it when one of the replacement functions returned true.
157         Return TODO_cleanup_cfg if cfgchanged is true.
158         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
159
160 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
161
162         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
163         instead of gen_lowpart.
164
165 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
166
167         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
168         interface.
169         (mips_output_order_conditional_branch): Declare.
170         * config/mips/mips.h (MIPS_BRANCH): New macro.
171         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
172         for the comparison.  Use gen_condjump.
173         (mips_output_conditional_branch): Rework interface to take the
174         asm templates for a direct branch and the inverse of a direct branch.
175         (mips_output_order_conditional_branch): New function.
176         (mips_builtin_branch_and_move): New function.
177         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
178         branch condition.  Use gen_single_cc as the condition for
179         __builtin_mips_upper_* or __builtin_mips_lower_*.
180         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
181         Use VOIDmode for the branch condition.
182         * config/mips/predicates.md (order_operator): New predicate.
183         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
184         (branch_fp): Rename to...
185         (*branch_fp): ...this.  Remove mode from comparison operator.
186         Use new mips_output_conditional_branch interface.
187         (branch_fp_inverted): Rename to...
188         (*branch_fp_inverted): ...this and update as for *branch_fp.
189         (*branch_zero<mode>): Rename to...
190         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
191         Use mips_output_order_conditional_branch.  Only accept ordered
192         comparisons.  
193         (*branch_zero<mode>_inverted): Rename to...
194         (*branch_order<mode>_inverted): ...this and update as for
195         *branch_order<mode>.
196         (*branch_equality<mode>): Accept zero as the second operand to
197         the equality operator.  Use the new mips_output_conditional_branch
198         interface.
199         (*branch_equality<mode>_inverted): Likewise.
200         (condjump): New expander.
201         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
202         operator.
203         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
204         (bc1any2t, bc1any2f): Likewise.
205         (single_cc): New expander.
206         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
207
208 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
209
210         * doc/md.texi: Update documentation of MIPS constraints.
211         * config/mips/constraints.md: New file.
212         * config/mips/mips.md: Include it.
213         * config/mips/mips.c (mips_char_to_class): Delete.
214         (override_options): Don't initialize mips_char_to_class.
215         * config/mips/mips.h (mips_char_to_class): Delete.
216         (REG_CLASS_FROM_LETTER): Delete.
217         (CONST_OK_FOR_LETTER_P): Delete.
218         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
219         (EXTRA_CONSTRAINT_Y): Delete.
220         (EXTRA_CONSTRAINT_STR): Delete.
221         (CONSTRAINT_LEN): Delete.
222         (EXTRA_MEMORY_CONSTRAINT): Delete.
223
224 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
225
226         * tree-cfg.c (move_block_to_fn): Remove the statements from the
227         original fn's eh regions.
228
229 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
230
231         * fold-const.c (build_range_check): Make sure to use a valid type to
232         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
233         transformation.
234
235         (range_predecessor): New static function.
236         (range_successor): Likewise.
237         (merge_ranges): Use them to compute predecessors and successors of
238         range bounds.
239
240 2006-03-09  Roger Sayle  <roger@eyesopen.com>
241
242         PR middle-end/26561
243         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
244         X op C3, consider whether C3 overflows towards +Inf or -Inf.
245
246 2006-03-08  DJ Delorie  <dj@redhat.com>
247
248         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
249         (addpsi3): Expand to include memory operands.  Remove
250         reload-specific splits.
251         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
252         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
253         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
254         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
255         (shift1_qi, shift1_hi, insv): New.
256         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
257         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
258         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
259         cond_to_int): New.
260         * config/m32c/m32c-protos.h: Update as needed.
261         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
262         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
263         Fail for unrecognized R* constraints.
264         (m32c_cannot_change_mode_class): Be more picky about pseudos.
265         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
266         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
267         Add Sp constraint.
268         (m32c_init_libfuncs): New.
269         (m32c_legitimate_address_p): Add debug wrapper.
270         (m32c_rtx_costs): New.
271         (m32c_address_cost): New.
272         (conversions): Add 'B' prefix.
273         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
274         operands, or word regnames for QI operands.  'B' prints bit
275         position.
276         (m32c_expand_setmemhi): New.
277         (m32c_expand_movmemhi): New.
278         (m32c_expand_movstr): New.
279         (m32c_expand_cmpstr): New.
280         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
281         (m32c_expand_neg_mulpsi3): Handle non-ints.
282         (m32c_cmp_flg_0): New.
283         (m32c_expand_movcc): New.
284         (m32c_expand_insv): New.
285         (m32c_scc_pattern): New.
286         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
287         a0/a1 out of SIregs.
288         (STORE_FLAG_VALUE): New.
289         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
290         code macros.
291         (no_insn): New.
292         * config/m32c/mov.md: Make constraints more liberal.
293         (zero_extendqihi2): Optimize r0/r1 case.
294         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
295         * config/m32c/predicates.md (m32c_any_operand): New.
296         (m32c_nonimmediate_operand): New.
297         (m32c_hl_operand): New.
298         (m32c_r3_operand): New.
299         (ap_operand): New.
300         (ma_operand): New.
301         (memsym_operand): New.
302         (memimmed_operand): New.
303         (a_qi_operand): New.
304         (m32c_eqne_operator): New.
305         (m32c_1bit8_operand): New.
306         (m32c_1bit16_operand): New.
307         (m32c_1mask8_operand): New.
308         (m32c_1mask16_operand): New.
309         * config/m32c/blkmov.md: New file.
310         * config/m32c/t-m32c (MD_FILES): Add blkmov.
311
312 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
313
314         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
315         unsigned to fix signed/unsigned comparison issue in
316         DWARF2_FRAME_REG_OUT.
317         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
318         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
319
320         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
321         of ptr into the ENABLE_CHECKING section.
322
323 2006-03-08  Jeff Law  <law@redhat.com>
324
325         * tree-vrp.c (infer_value_range): Only count pointer uses
326         and dereferences if -fdelete-null-pointer-checks is enabled.
327
328         * tree-vrp.c (find_assert_locations): Infer value ranges for
329         single use pointers, but do not create ASSERT_EXPRs for them.
330         When a non-null range is inferred for a pointer, backwards
331         propagate that range to other equivalent pointers through the
332         use-def chain.
333
334 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
335
336         PR bootstrap/26500
337         * Makefile.in (dvi, html, install-info): Invoke the corresponding
338         language hook targets.
339         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
340         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
341         if language hook targets were missing.
342
343 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
344
345         * tree-ssa-opfinalize.h: Removed.
346         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
347         dependency.
348         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
349         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
350         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
351         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
352         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
353         finalize_ssa_v_must_def_ops): New.
354
355 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
356
357         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
358         block as parameter.
359
360 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
361
362         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
363
364         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
365         addresses with offsets; reorganize.
366
367         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
368         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
369         (expand_builtin_init_dwarf_reg_sizes): Likewise.
370
371 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
372
373         PR target/26588
374         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
375
376 2006-03-08  Ben Elliston  <bje@au.ibm.com>
377
378         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
379
380 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
381
382         PR gomp/26238
383         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
384         expansion.
385
386 2006-03-07  Richard Guenther  <rguenther@suse.de>
387
388         PR tree-optimization/26587
389         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
390
391 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
392
393         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
394
395 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
396
397         * hooks.c (hook_bool_mode_rtx_true): New function.
398         * hooks.h (hook_bool_mode_rtx_true): Declare.
399         * toplev.c (compile_file): Call output_shared_constant_pool.
400         * varasm.c (shared_constant_pool): New variable.
401         (assemble_start_function, assemble_end_function): Remove arguments
402         from call to output_constant_pool.
403         (create_constant_pool): New function, split out from...
404         (init_varasm_status): ...here.
405         (force_const_mem): Choose between the shared and per-function constant
406         pools.  Set current_function_uses_const_pool when reusing old entries
407         as well as when creating new ones.
408         (mark_constant): Ignore data argument.
409         (mark_constants): Remove pool argument.
410         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
411         to decide whether the function uses a constant pool.
412         (output_constant_pool_contents): New function, split out from...
413         (output_constant_pool): ...here.
414         (output_shared_constant_pool): New function.
415         (init_varasm_once): Initialize shared_constant_pool.
416         * output.h (output_constant_pool): Delete.
417         (output_shared_constant_pool): Declare.
418         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
419         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
420
421 2006-03-06  Nick Clifton  <nickc@redhat.com>
422
423         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
424         flag_strength_reduce.
425
426 2006-03-06  Ben Elliston  <bje@au.ibm.com>
427
428         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
429         x86_64-*-linux* configurations.
430
431         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
432         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
433
434 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
435
436         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
437         Remove.
438         * basic-block.h: Remove the extern for
439         rediscover_loops_after_threading.
440
441         * cfgloop.c (cancel_loop): Make it static.
442         * cfgloop.h: Remove the prototype for cancel_loop.
443
444         * flow.c (recompute_reg_usage): Make it static.
445         * rtl.h: Remove the prototype for recompute_reg_usage.
446
447         * function.c (use_return_register): Make it static.
448         * function.h: Remove the prototype.
449
450 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
451
452         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
453         Remove.
454         * recog.h: Remove the prototype for
455         validate_change_maybe_volatile.
456
457 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
458
459         * rtlanal.c (replace_reg): Remove.
460         * rtl.h: Remove the prototype for replace_reg.
461
462 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
463
464         * regclass.c (reg_scan_update): Remove.
465         (reg_scan_mark_refs): Remove the last argument.
466         * rtl.h: Remove the prototype for reg_scan_update.
467
468 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
469
470         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
471         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
472         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
473         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
474         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
475         loop-invariant.c, omp-low.c, opts.c, passes.c,
476         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
477         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
478         tree-ssa-structalias.c, tree-ssa-threadedge.c,
479         tree-ssa-threadupdate.c, tree-vect-patterns.c,
480         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
481         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
482
483 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
484
485         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
486         * dwarf2out.h: Remove the prototype for
487         dwarf2out_add_library_unit_info.
488
489 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
490
491         * tree.c (add_var_to_bind_expr): Remove.
492         * tree.h: Remove the prototype for add_var_to_bind_expr.
493
494 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
495
496         * regclass.c (n_non_fixed_regs): Remove.
497         (init_reg_sets_1, globalize_reg): Remove all uses of
498         n_non_fixed_regs.
499         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
500
501 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
502
503         * rtlanal.c (insns_safe_to_move_p): Remove.
504         * rtl.h: Remove the prototype for insns_safe_to_move_p.
505
506 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
507
508         * expmed.c (expand_mult_add): Remove.
509         * expr.h: Remove the prototype for expand_mult_add.
510
511 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
512
513         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
514         and REG_SAVED_VAL_EXP constants.
515         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
516         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
517         Handle regs stored by value.
518         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
519         (execute_cfa_program): Handle DW_CFA_val_offset,
520         DW_CFA_val_offset_sf and DW_CFA_val_expression.
521         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
522         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
523         (uw_install_context_1): Handle target regs stored by value.
524
525 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
526
527         * tree-sra.c (tree_sra): Return todoflags;
528         (generate_one_element): Set TODO_update_smt_usage if needed.
529         (pass_sra): Remove TODO_update_smt_usage.
530         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
531         parameter.
532         (tree_ssa_forward_propagate_single_use_vars): Return
533         TODO_update_smt_usage if we need to update SMT usage.
534         (pass_forwprop): Remove TODO_update_smt_usage.
535         
536 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
537
538         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
539         (correct_use_link): Remove reference to get_stmt_operands.
540         (update_stmt_operands): Likewise.
541         (get_modify_expr_operands): New function factored out of
542         parse_ssa_operands and get_expr_operands.
543         Try to create V_MUST_DEFs for LHS by default.
544         (get_expr_operands) <case MODIFY_EXPR>: Call
545         get_modify_expr_operands.
546         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
547         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
548         (parse_ssa_operands) <case MODIFY_EXPR>: Call
549         get_modify_expr_operands.
550
551 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
552
553         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
554         * tree-flow.h: Remove the prototype for
555         referenced_var_lookup_if_exists.
556
557 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
558
559         PR rtl-optimization/26345
560         PR target/19061
561         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
562
563 2006-03-03  Roger Sayle  <roger@eyesopen.com>
564
565         PR tree-optimization/26524
566         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
567         fold_convert to create a constant of the appropriate type.
568
569 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
570
571         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
572         SYMBOL_REF_IN_BLOCK_P.
573         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
574         of SYMBOL_FLAG_IN_BLOCK.
575         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
576         instead of SYMBOL_REF_IN_BLOCK_P.
577         * explow.c (use_anchored_address): Likewise.
578         * rtl.c (rtx_size): Likewise.
579         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
580         instead of SYMBOL_FLAG_IN_BLOCK.
581         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
582         SYMBOL_REF_IN_BLOCK_P.
583         (assemble_variable): Likewise.
584         (output_constant_def_contents): Likewise.
585         (output_constant_pool): Likewise.
586         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
587         instead of SYMBOL_FLAG_IN_BLOCK.
588         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
589         SYMBOL_REF_IN_BLOCK_P.
590         (SYMBOL_REF_BLOCK): Likewise.
591         (SYMBOL_REF_OFFSET): Likewise.
592         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
593         SYMBOL_REF_IN_BLOCK_P.
594         (SYMBOL_FLAG_IN_BLOCK): Replace with...
595         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
596         (SYMBOL_REF_IN_BLOCK_P): Replace with...
597         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
598
599 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
600
601         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
602
603 2006-03-02  Roger Sayle  <roger@eyesopen.com>
604
605         * simplify-rtx.c (simplify_unary_operation): When simplifying
606         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
607         that we perform the right shift in the appropriate mode, and
608         then extend or truncate the result to requested mode.
609
610 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
611
612         * gengtype.c (main): Handle double_int type.
613         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
614         * double-int.c: New file.
615         * double-int.h: New file.
616         * system.h: Include doubleint.h.
617         * Makefile.in (SYSTEM_H): Include double-int.h.
618         (double-int.o): Add.
619
620 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
621
622         PR bootstrap/26478
623         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
624         copying over it.
625
626 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
627
628         * tree-vrp.c (remove_range_assertions): Do not update statements
629         unnecessarily.
630
631 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
632
633         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
634         cleanup.
635         * gcse.c (rest_of_handle_gcse): Ditto.
636         * except.c (gate_handle_eh): Ditto.
637         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
638         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
639
640 2006-03-02  Eric Christopher  <echristo@apple.com>
641
642         * config/i386/i386.c (machopic_output_stub): Add indirection to
643         jump.
644
645 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
646
647         * loop.c: Removed.
648
649 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
650
651         Sun Niagara specific optimizations.
652         * config.gcc: Recognize niagara as target.
653         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
654         (TARGET_CPU_niagara): Define.
655         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
656         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
657         (CPP_CPU_SPEC): Handle -mcpu=niagara.
658         (ASM_CPU_SPEC): Likewise.
659         (PROCESSOR_NIAGARA): New enum entry.
660         (REGISTER_MOVE_COST): Handle Niagara.
661         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
662         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
663         (sparc_override_options): Recognize "niagara", set appropriate
664         default MASK_* values for it, and align functions to 32-bytes
665         by default just like ULTRASPARC/ULTRASPARC3.
666         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
667         (sparc64_initialize_trampoline): Likewise.
668         (sparc_use_sched_lookahead): Use zero for niagara.
669         (sparc_issue_rate): Use one for niagara.
670         * config/sparc/niagara.md: New file.
671         * config/sparc/sparc.md: Include it.
672         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
673         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
674         when default cpu is niagara.
675         (CPP_CPU_SPEC): Handle -mcpu=niagara.
676         (ASM_CPU_SPEC): Likewise.
677         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
678         when default cpu is niagara.
679         (ASM_CPU_SPEC): Handle -mcpu=niagara.
680         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
681         just like v9/ultrasparc/ultrasparc3.
682         * doc/invoke.texi: Add documentation for "niagara" and improve
683         existing documentation for ultrasparc variants.
684
685 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
686
687         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
688
689 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
690
691         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
692         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
693         and say that only one is needed.
694         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
695         * target.h (have_switchable_bss_sections): New hook.
696         * explow.c (use_anchored_address): Check that the symbol is in a block.
697         * varasm.c (tls_comm_section, comm_section, lcomm_section)
698         (bss_noswitch_section): New variables.
699         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
700         (get_noswitch_section): New function.
701         (get_block_for_section): Allow SECT to be null.
702         (unlikely_text_section_p): Use SECTION_STYLE.
703         (bss_initializer_p): New function.
704         (get_variable_section): Move earlier in file.  Take a new argument,
705         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
706         Return one of the new *_sections in such cases.
707         (get_block_for_decl): New function, extracting some logic from
708         use_blocks_for_decl_p.
709         (change_symbol_section): Remove in favor of...
710         (change_symbol_block): ...this new function.
711         (use_blocks_for_decl_p): Remove checks now performed by
712         get_block_for_decl.
713         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
714         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
715         (emit_local, emit_bss, emit_common): ...these new functions.
716         Return true if the alignment was honored.
717         (emit_tls_common): New function.
718         (asm_emit_uninitialised): Delete.
719         (assemble_variable_noswitch): New function, split out from...
720         (assemble_variable): ...here.  Don't make decisions about common
721         variables here.  Globalize all public decls that go into non-common
722         sections.  Check whether SYMBOL_REF_BLOCK is null.
723         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
724         (output_constant_pool): Likewise.
725         (init_varasm_once): Initialize the new section variables.
726         (have_global_bss_p): New function.
727         (categorize_decl_for_section): Use bss_initializer_p.
728         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
729         (place_block_symbol): Assert that the symbol must be in a block.
730         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
731         (TARGET_INITIALIZER): Include it.
732         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
733         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
734         (SECTION_MACH_DEP): Bump by two.
735         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
736         (unnamed_section): Mention SECTION_UNNAMED in comment.
737         (named_section): Likewise SECTION_NAMED.
738         (noswitch_section_callback): New type.
739         (noswitch_section): New structure.
740         (section): Add a noswitch_section alternative.
741         (SECTION_STYLE): New macro.
742         (tls_comm_section, comm_section, lcomm_section): Declare.
743         (bss_noswitch_section, have_global_bss_p): Declare.
744         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
745         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
746         Override.
747         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
748         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
749         Override.
750
751 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
752
753         * gcc/tree-vrp.c (execute_vrp): Return value.
754         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
755         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
756         * gcc/tree-complex.c (tree_lower_complex): Ditto.
757         (tree_lower_complex_O0): Ditto.
758         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
759         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
760         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
761         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
762         (execute_tail_calls): Ditto.
763         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
764         * gcc/tree.h (init_function_for_compilation): Ditto.
765         * gcc/ipa-cp.c (ipcp_driver): Ditto.
766         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
767         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
768         * gcc/final.c (compute_alignments): Ditto.
769         (rest_of_handle_final): Ditto.
770         (rest_of_handle_shorten_branches): Ditto.
771         (rest_of_clean_state): Ditto.
772         * gcc/omp-low.c (execute_expand_omp): Ditto.
773         (execute_lower_omp): Ditto.
774         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
775         * gcc/ipa-reference.c (static_execute): Ditto.
776         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
777         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
778         (rest_of_handle_machine_reorg): Ditto.
779         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
780         * gcc/flow.c (recompute_reg_usage): Ditto.
781         (rest_of_handle_remove_death_notes): Ditto.
782         (rest_of_handle_life): Ditto.
783         (rest_of_handle_flow2): Ditto.
784         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
785         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
786         (do_ssa_store_ccp): Ditto.
787         (execute_fold_all_builtins): Ditto.
788         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
789         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
790         * gcc/ipa-pure-const.c (static_execute): Ditto.
791         * gcc/cse.c (rest_of_handle_cse): Ditto.
792         (rest_of_handle_cse2): Ditto.
793         * gcc/web.c (rest_of_handle_web): Ditto.
794         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
795         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
796         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
797         * gcc/tree-nrv.c (tree_nrv): Ditto.
798         (execute_return_slot_opt): Ditto.
799         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
800         (create_structure_vars): Ditto.
801         * gcc/loop-init.c (rtl_loop_init): Ditto.
802         (rtl_loop_done): Ditto.
803         (rtl_move_loop_invariants): Ditto.
804         (rtl_unswitch): Ditto.
805         (rtl_unroll_and_peel_loops): Ditto.
806         (rtl_doloop): Ditto.
807         * gcc/gimple-low.c (lower_function_body): Ditto.
808         (mark_used_blocks): Ditto.
809         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
810         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
811         (cgraph_early_inlining): Ditto.
812         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
813         * gcc/jump.c (cleanup_barriers): Ditto.
814         (purge_line_number_notes): Ditto.
815         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
816         (rest_of_handle_if_after_reload): Ditto.
817         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
818         (tree_ssa_loop_im): Ditto.
819         (tree_ssa_loop_unswitch): Ditto.
820         (tree_vectorize): Ditto.
821         (tree_linear_transform): Ditto.
822         (tree_ssa_loop_ivcanon): Ditto.
823         (tree_ssa_empty_loop): Ditto.
824         (tree_ssa_loop_bounds): Ditto.
825         (tree_complete_unroll): Ditto.
826         (tree_ssa_loop_prefetch): Ditto.
827         (tree_ssa_loop_ivopts): Ditto.
828         (tree_ssa_loop_done): Ditto.
829         * gcc/predict.c (tree_estimate_probability): Ditto.
830         * gcc/recog.c (split_all_insns_noflow): Ditto.
831         (rest_of_handle_peephole2): Ditto.
832         (rest_of_handle_split_all_insns): Ditto.
833         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
834         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
835         (rest_of_handle_stack_adjustments): Ditto.
836         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
837         * gcc/function.c (instantiate_virtual_regs): Ditto.
838         (init_function_for_compilation): Ditto.
839         (rest_of_handle_check_leaf_regs): Ditto.
840         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
841         (rest_of_handle_gcse): Ditto.
842         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
843         * gcc/alias.c (rest_of_handle_cfg): Ditto.
844         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
845         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
846         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
847         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
848         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
849         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
850         * gcc/except.c (set_nothrow_function_flags): Ditto.
851         (convert_to_eh_region_ranges): Ditto.
852         (rest_of_handle_eh): Ditto.
853         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
854         (remove_unnecessary_notes): Ditto.
855         * gcc/except.h (set_nothrow_function_flags): Ditto.
856         (convert_to_eh_region_ranges): Ditto.
857         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
858         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
859         * gcc/tree-ssa-pre.c (do_pre): Ditto.
860         (execute_fre): Ditto.
861         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
862         (rest_of_handle_jump2): Ditto.
863         * gcc/tree-sra.c (tree_sra): Ditto.
864         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
865         (execute_mudflap_function_decls): Ditto.
866         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
867         (do_store_copy_prop): Ditto.
868         * gcc/ipa-prop.h (ipcp_driver): Ditto.
869         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
870         * gcc/tree-ssa-forwprop.c
871         (tree_ssa_forward_propagate_single_use_vars): Ditto.
872         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
873         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
874         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
875         (execute_late_warn_uninitialized): Ditto.
876         * gcc/rtl.h (cleanup_barriers): Ditto.
877         (split_all_insns_noflow): Ditto.
878         (purge_line_number_notes): Ditto.
879         (unshare_all_rtl): Ditto.
880         (remove_unnecessary_notes): Ditto.
881         (recompute_reg_usage): Ditto.
882         (variable_tracking_main): Ditto.
883         * gcc/integrate.c (emit_initial_value_sets): Ditto.
884         * gcc/integrate.h (emit_initial_value_sets): Ditto.
885         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
886         (execute_free_cfg_annotations): Ditto.
887         (execute_fixup_cfg): Ditto.
888         (execute_cleanup_cfg_pre_ipa): Ditto.
889         (execute_cleanup_cfg_post_optimizing): Ditto.
890         (execute_init_datastructures): Ditto.
891         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
892         * gcc/combine.c (rest_of_handle_combine): Ditto.
893         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
894         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
895         (rest_of_handle_reorder_blocks): Ditto.
896         (rest_of_handle_partition_blocks): Ditto.
897         * gcc/var-tracking.c (variable_tracking_main): Ditto.
898         * gcc/tree-profile.c (tree_profiling): Ditto.
899         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
900         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
901         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
902         (rest_of_handle_sched2): Ditto.
903         * gcc/basic-block.h (free_bb_insn): Ditto.
904         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
905         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
906         (remove_useless_stmts): Ditto.
907         (split_critical_edges): Ditto.
908         (execute_warn_function_return): Ditto.
909         (execute_warn_function_noreturn): Ditto.
910         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
911         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
912         * gcc/passes.c (execute_one_pass): Run additional
913         todos returned by execute function.
914         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
915         return a value.
916
917 2006-03-02  Richard Guenther  <rguenther@suse.de>
918
919         * tree-ssa-alias.c (find_used_portions): Consider taking
920         the address as making the variable not write-only.
921
922 2006-03-02  Nick Clifton  <nickc@redhat.com>
923
924         * config.gcc (default_use_cxa_atexit): Extend the description of
925         this configure variable.  Set its default value to "yes" for
926         Linux, NetBSD and ELF targets on the assumption that they will
927         use C libraries with the __cxa_atexit function.
928
929 2006-03-02  Ben Elliston  <bje@au.ibm.com>
930
931         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
932         parameter as unused to suppress a build warning.
933
934 2006-03-02  Ben Elliston  <bje@au.ibm.com>
935
936         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
937         config/dfp-bit.c.
938
939 2006-03-01  Roger Sayle  <roger@eyesopen.com>
940
941         PR other/26489
942         * gthr-posix.h (__gthrw2): Define to take three parameters, the
943         declared name, the weak reference name, and the typeof name.
944         (__gthrw): Avoid expanding the declared name suffix.
945         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
946
947 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
948
949         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
950         from DWARF 3.
951         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
952         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
953         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
954         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
955         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
956         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
957         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
958         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
959         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
960         DW_DS_leading_separate, DW_DS_trailing_separate): New.
961         (DW_END_default, DW_END_big, DW_END_little): New.
962         (DW_END_lo_user, DW_END_hi_user): Define.
963         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
964         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
965         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
966         DW_LANG_D): New.
967
968 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
969
970         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
971         Update all users.
972         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
973         Update all users.
974         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
975         Update all users.
976         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
977         Update all users.
978         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
979         to 'symbol_mem_tag'.
980         Update all users.
981         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
982         rename.
983
984 2006-03-01  Roger Sayle  <roger@eyesopen.com>
985
986         * builtins.c (fold_builtin_copysign): Delete unreachable code.
987
988 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
989
990         PR target/25761
991         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
992         MACHO_DYNAMIC_NO_PIC_P.
993         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
994
995 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
996
997         PR target/26389
998         * config/darwin-protos.h (darwin_asm_output_anchor):
999         Declare.
1000         * config/darwin-sections.def (cstring_section):
1001         Add SECTION_MERGE to the flags.
1002         (literal4_section): Likewise.
1003         (literal8_section): Likewise.
1004         (objc_selector_refs_section): Likewise.
1005         (objc_cls_refs_section): Likewise.
1006         * config/darwin.c (darwin_asm_output_anchor): New
1007         function.
1008         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1009
1010 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
1011
1012         Fix PR tree-optimization/26443
1013         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
1014         to todo and PROP_tmt_usage to properties_destroyed.
1015         * tree-ssa-ccp.c (pass_ccp): Ditto.
1016         (pass_store_ccp): Ditto.
1017         * tree-ssa-dom.c (pass_dominator): Ditto.
1018
1019 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
1020
1021         * tree-ssa-operands.c: Cleanup whitespace.
1022         (get_asm_expr_operands): Move before first invocation.
1023         (get_indirect_ref_operands): Likewise.
1024         (get_tmr_operands): Likewise.
1025         (get_call_expr_operands): Likewise.
1026         (append_def): Likewise.
1027         (append_use): Likewise.
1028         (append_v_may_def): Likewise.
1029         (append_v_must_def): Likewise.
1030         (add_call_clobber_ops): Likewise.
1031         (add_call_read_ops): Likewise.
1032         (add_stmt_operand): Likewise.
1033         (add_virtual_operand): Likewise.
1034         (build_ssa_operands): Likewise.
1035
1036 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
1037
1038         PR middle-end/26022
1039         Revert:
1040         PR middle-end/24437
1041         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
1042         with a call expr to ...
1043         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
1044
1045 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
1046
1047         * tree-vrp.c (extract_range_from_assert): Remove special
1048         handling for types with super-types.
1049
1050 2006-03-01  Ben Elliston  <bje@au.ibm.com>
1051
1052         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
1053         and powerpc64-*-linux* configurations.
1054         * config/t-dfprules: New file.
1055
1056         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
1057         Compile dfp-bit.c from the source directory using -DWIDTH and
1058         $DFP_CFLAGS to control the compilation of that file, rather than
1059         generating width-specific versions in the build directory.
1060         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
1061         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
1062
1063 2006-02-28  Zack Weinberg  <zackw@panix.com>
1064
1065         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
1066         continues to work.
1067
1068 2006-02-28  Eric Christopher  <echristo@apple.com>
1069
1070         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
1071         Set up IN_LIBGCC definition of TARGET_64BIT.
1072         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
1073
1074 2006-02-28  Roger Sayle  <roger@eyesopen.com>
1075
1076         PR middle-end/14752
1077         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
1078         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
1079         cases via the construction of "expr != 0".
1080
1081 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
1082
1083         * alias.c (alias_invariant, alias_invariant_size): Remove.
1084         (record_base_value): Remove.
1085         (memrefs_conflict_p): Don't look at alias_invariant.
1086         (end_alias_analysis): Don't free it.
1087         * alias.h (record_base_value): Remove prototype.
1088
1089 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
1090             Adam Nemet  <anemet@caviumnetworks.com>
1091
1092         * rtl.h (truncated_to_mode): Declare it.
1093         (struct rtl_hooks): Add reg_truncated_to_mode hook.
1094         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
1095         (RTL_HOOKS_INITIALIZER): Include it.
1096         * rtlhooks.c (reg_truncated_to_mode_general): New function.
1097         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
1098         reg_truncated_to_mode.
1099         * rtlanal.c (truncated_to_mode): Define it.
1100         * simplify-rtx.c (simplify_unary_operation_1): Use it.
1101
1102 2006-02-28  Jeff Law  <law@redhat.com>
1103
1104         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
1105         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
1106         the range allowed by TYPE_PRECISION.
1107
1108         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
1109
1110 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
1111
1112         PR tree-optimization/26419
1113         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
1114         values of n.
1115
1116 2006-02-27  Zack Weinberg  <zackw@panix.com>
1117
1118         * doc/md.texi: Fix typo in previous change.
1119
1120 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
1121
1122         * df.c: Remove.
1123
1124 2006-02-27  Zack Weinberg  <zackw@panix.com>
1125
1126         * rtl.def (define_constraint, define_register_constraint)
1127         (define_memory_constraint, define_address_constraint): New MD forms.
1128         * gensupport.c (process_rtx): Put define_constraint etc on the
1129         predicate queue.
1130         * genpreds.c (process_define_predicate): Adjust comment.  Validate
1131         the name, and call validate_exp to validate the expression.
1132         (mark_mode_tests, write_extract_subexp): Can assume correct input.
1133         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
1134         all callers changed.
1135         (validate_exp, needs_variable, struct constraint_data)
1136         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
1137         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
1138         (const_dbl_constraints, constraint_max_namelen)
1139         (have_register_constraints, have_memory_constraints)
1140         (have_address_constraints, have_address_constraints)
1141         (have_extra_constraints, have_const_int_constraints)
1142         (have_const_dbl_constraints, mangle, add_constraint)
1143         (process_define_constraint, process_define_register_constraint)
1144         (write_enum_constraint_num, write_lookup_constraint)
1145         (write_insn_constraint_len, write_regclass_for_constraint)
1146         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
1147         (write_insn_extra_memory_constraint)
1148         (write_insn_extra_address_constraint)
1149         (write_satisfies_constraint_fns): New.
1150         (write_tm_preds_h): If we have new-style constraint definitions,
1151         prototype the functions generated from them, and define the
1152         old constraint interface (still used by generic code) in terms of
1153         those functions.
1154         (write_insn_preds_c): If we have new-style constraint definitions,
1155         generate all relevant functions from those definitions.
1156         (main): Handle define_constraint etc.
1157         * genoutput.c (struct constraint_data, indep_constraints)
1158         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
1159         (mdep_constraint_len): New data structures and functions, defined
1160         #ifdef USE_MD_CONSTRAINTS.
1161         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
1162         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
1163         use new logic to validate operand constraints against constraint
1164         definitions.
1165         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
1166         defined.
1167         * defaults.h: If none of the old-style constraint macros are
1168         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
1169         old-style macros; and poison REG_CLASS_FROM_LETTER,
1170         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
1171         EXTRA_CONSTRAINT.
1172         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
1173         * doc/md.texi: Document new constraint-definition mechanism and the
1174         C interface it provides.  Remove references to old mechanism
1175         elsewhere in the document.
1176         (Machine Constraints): Use pathnames relative to gcc directory,
1177         i.e. config/ARCH/FILE.  Change i386 section to refer to
1178         config/i386/predicates.md; update that section to match docstrings.
1179         * doc/tm.texi: Move all documentation of the old constraint-
1180         definition macros to their own section, clearly mark as obsolete.
1181
1182         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
1183         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
1184         definitions.
1185         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
1186         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
1187         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
1188         constraint strings.
1189         (splits and peepholes): Use satisfies_constraint_*.
1190         * config/i386/i386.c (memory_address_length)
1191         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
1192
1193 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1194
1195         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
1196         scalar operation to be put back into the loop.
1197
1198 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
1199
1200         PR other/26208
1201         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
1202         (extract_cie_info): Handle S flag in augmentation string.
1203         (execute_cfa_program): If context->signal_frame, execute also
1204         fs->pc == context->ra instructions.
1205         (uw_frame_state_for): If context->signal_frame, don't subtract one
1206         from context->ra to find FDE.
1207         (uw_update_context_1): Set context->signal_frame to
1208         fs->signal_frame.
1209         (_Unwind_GetIPInfo): New function.
1210         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
1211         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
1212         of _Unwind_GetIP.
1213         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
1214         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
1215         * unwind-compat.c (_Unwind_GetIPInfo): New function.
1216         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
1217         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
1218         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
1219         * config/i386/linux-unwind.h (x86_fallback_frame_state,
1220         x86_64_fallback_frame_state): Set fs->signal_frame.
1221         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
1222         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
1223         (frob_update_context): Likewise.  Workaround missing S flag in
1224         Linux 2.6.12 - 2.6.16 kernel vDSOs.
1225         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
1226         Remove the psw_addr + 1 hack.
1227
1228 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
1229
1230         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
1231         with aggregates here.
1232         (find_func_aliases): Remove code for &<aggregate> from here.
1233
1234 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1235
1236         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
1237         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
1238         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
1239         as (X & C) ne/eq 0.
1240
1241 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1242
1243         PR middle-end/19983
1244         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
1245
1246 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
1247
1248         * opts.c (decode_options): Do not handle flag_strength_reduce.
1249         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
1250         and OPT_fstrength_reduce.
1251         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
1252         flag_prefetch_loop_arrays for being nonzero.
1253         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
1254         no-ops.
1255         (fprefetch-loop-arrays-rtl): Removed.
1256         (flag_prefetch_loop_arrays): Do not specify the value.
1257
1258         * doc/passes.texi: Update documentation of loop optimizer
1259         passes.
1260         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
1261         -frerun-loop-opt): Remove.
1262
1263 2006-02-26  Richard Guenther  <rguenther@suse.de>
1264
1265         PR tree-optimization/26421
1266         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
1267         in function calls that are ADDR_EXPRs as using the whole structure.
1268
1269 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
1270
1271         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
1272         * tree-pass.h (pass_loop_optimize): Remove.
1273         * passes.c (pass_loop_optimize): Never run it.
1274         * toplev.c (backend_init): Don't call init_loop.
1275         * opts.c (flag_loop_optimize_set): Remove.
1276         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
1277         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
1278         the old RTL loop optimizer when profiling enabled.
1279         * predict.c (tree_estimate_probability): Always strip builtin_expect.
1280         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
1281         pre-headers for the sake of the old RTL loop optimizer.
1282         * Makefile.in: Remove all references to loop.o.
1283
1284         * doc/invoke.texi: Remove all references to -floop-optimize
1285         and -frerun-loop-opt.
1286
1287 2006-02-26  Zack Weinberg  <zackw@panix.com>
1288
1289         * doc/md.texi (Machine Constraints): Refer to all files with paths
1290         relative to gcc directory (i.e. config/CPU/file).  Add missing
1291         @table @code ... @end table to M32C subsection.
1292
1293 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1294
1295         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
1296         (X & 1) == 0.
1297         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
1298
1299 2006-02-26  Roger Sayle  <roger@eyesopen.com>
1300             James A. Morrison  <phython@gcc.gnu.org>
1301
1302         PR middle-end/21137
1303         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
1304         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
1305         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
1306         signedness of the shift operation.
1307
1308 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
1309
1310         PR tree-optimization/26359
1311         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
1312
1313 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1314
1315         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
1316         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
1317         as X == 0, and some symmetry related transformations.
1318         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
1319
1320 2006-02-25  Roger Sayle  <roger@eyesopen.com>
1321
1322         PR middle-end/23673
1323         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
1324         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
1325         symmetry related transformations.  Fold (X^C1) == C2 as
1326         X == (C1^C2).
1327
1328 2006-02-25  Juergen Weigert  <jw@suse.de>
1329         Richard Guenther  <rguenther@suse.de>
1330
1331         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
1332
1333 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
1334
1335         * combine.c (gen_lowpart_or_truncate): Call
1336         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
1337
1338 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
1339
1340         * doc/invoke.texi: Move -fopenmp description to "Options for
1341         Code Generation".
1342         Remove reference to -lgomp.
1343
1344 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1345
1346         * doc/install.texi: Require GNU tar version 1.14.
1347
1348 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
1349
1350         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
1351         * doc/invoke.texi (C++ Dialect Options): Document
1352         -fno-use-cxa-get-exception-ptr.
1353         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
1354         * configure: Regenerate.
1355         * c.opt (fuse-cxa-get-exception-ptr): New.
1356         * c-opts.c (c_common_handle_option): Handle
1357         OPT_fuse_cxa_get_exception_ptr.
1358         * c-common.c (flag_use_cxa_atexit): Update documentation.
1359         (flag_use_cxa_get_exception_ptr): New.
1360         * c-common.h (flag_use_cxa_get_exception_ptr): New.
1361         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
1362         documentation.
1363         (C_COMMON_OVERRIDE_OPTIONS): New.
1364
1365 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1366
1367         PR middle-end/24952
1368         * combine.c (try_combine): Explicitly check whether GET_CODE is
1369         a SET or a CLOBBER, instead on checking that it isn't a USE.
1370
1371 2006-02-24  Roger Sayle  <roger@eyesopen.com>
1372
1373         * fold-const.c (fold_comparison): New subroutine of fold_binary
1374         containing transformations common to both the equality and
1375         ordering relational operators, factored out of fold_binary.
1376         (fold_binary): Separate out the equality operators (EQ_EXPR
1377         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
1378         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
1379         transformations common to both.
1380         (fold_div_compare): Fix latent bugs in the previously unreachable
1381         LT_EXPR and GE_EXPR cases.
1382
1383 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
1384
1385         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
1386         decl libname for clog to __clog on AIX.
1387
1388         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
1389
1390 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1391
1392         PR target/26453
1393         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1394         output traceback table for thunks.  Localise rs6000_stack_info call.
1395
1396 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1397             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1398
1399         * gthr-posix.h (__gthrw): Fix typo in comment.
1400
1401 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1402
1403         * doc/cpp.texi (Character sets): Document that we do support
1404         input files to be in any character set.
1405
1406 2006-02-23  Jeff Law  <law@redhat.com>
1407
1408         * tree.h (PHI_ARG_NONZERO): Remove.
1409         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1410         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1411         node to the new node.
1412
1413         PR tree-optimization/26425
1414         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1415         min/max, then assume its varying.
1416
1417 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1418
1419         PR rtl-optimization/26316
1420         * rtlanal.c (enum may_trap_p_flags): New.
1421         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1422         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1423         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1424         (may_trap_after_code_motion_p): New function.
1425         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1426         (find_invariant_insn): Use may_trap_after_code_motion_p.
1427         * rtl.h (may_trap_after_code_motion_p): Declare.
1428
1429 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1430
1431         * emit-rtl.c (immed_double_const): Cleanup.
1432
1433 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1434
1435         Fix PR tree-optimization/26376
1436         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1437         remove assert.
1438
1439 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1440
1441         PR middle-end/26412
1442         * gimplify.c (omp_add_variable): Guard variable size decl test with
1443         DECL_SIZE (decl) check.
1444
1445 2006-02-23  Richard Guenther  <rguenther@suse.de>
1446
1447         PR middle-end/26439
1448         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1449         like aggregate types.
1450
1451 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1452
1453         * configure.ac: Add --with{,out}-long-double-128 configure option.
1454         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1455         * configure: Rebuilt.
1456         * config.in: Rebuilt.
1457         * doc/install.texi (Options specification): Document
1458         --with-long-double-128.
1459
1460         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1461         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1462         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1463         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1464
1465 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1466
1467         * config/s390/s390.c (override_options): Handle
1468         TARGET_DEFAULT_LONG_DOUBLE_128.
1469
1470         * config/alpha/alpha.c (override_options): Handle
1471         TARGET_DEFAULT_LONG_DOUBLE_128.
1472
1473         * config/sparc/sparc.c (sparc_override_options): Handle
1474         TARGET_DEFAULT_LONG_DOUBLE_128.
1475
1476 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1477
1478         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1479         (real-install-headers-tar, real-install-headers-cpio)
1480         (real-install-headers-cp): New targets.
1481
1482 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1483
1484         * tree.h (variable_section): Delete.
1485         * varasm.c (variable_section): Delete.
1486
1487 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1488
1489         * install.texi: Add notes on install.texi2html.
1490         (Building in parallel): Do not use footnotes.
1491
1492 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1493
1494         PR libgomp/26234
1495         * doc/install.texi (Configuration): Document --disable-libgomp.
1496
1497 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1498
1499         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1500
1501 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1502
1503         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1504         (vec_extractv2df_0_sse): New.
1505
1506 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1507
1508         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1509         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1510         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1511         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1512         to the result of the expression.
1513         (def_cfa_1): Adjust.
1514         (frame_pointer_cfa_offset): Rename to...
1515         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1516         (convert_cfa_to_loc_list): Rename to...
1517         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1518         Pass it on to build_cfa_loc.
1519         (compute_frame_pointer_to_cfa_displacement): Rename to...
1520         (compute_frame_pointer_to_fb_displacement): ... this.  New
1521         offset parameter.  Use it in computation.
1522         (gen_subprogram_die): Compute cfa_fb_offset with the new
1523         macro, and use it to compute the fb loc list and the
1524         displacement.
1525
1526 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1527
1528         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1529         replaced with register_operand.
1530         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1531         non-DREG is expensive.
1532         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1533         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1534         involving memory.
1535
1536 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1537
1538         * doc/install.texi2html: Use set -e.
1539
1540 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1541
1542         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1543         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1544         * doc/invoke.texi (-fshared-data): Delete.
1545         * common.opt (fshared-data): Delete.
1546         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1547         (assemble_static_space): Remove #if 0 code.
1548         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1549         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1550         * config/cris/cris.h: Remove FIXME.
1551
1552 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1553
1554         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1555         hooks.
1556
1557 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1558
1559         PR middle-end/26379
1560         * combine.c (simplify_shift_const_1): Disable nested shifts
1561         optimization for vector shifts.
1562
1563 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1564
1565         PR tree-optimization/26361
1566         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1567         of unsigned integer types.
1568
1569 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1570
1571         * tree-chrec.c (eq_evolutions_p): New.
1572         * tree-chrec.h (eq_evolutions_p): Declared.
1573         * tree-data-ref.c: Fix formatting.
1574         (datadep_stats, dependence_stats): New.
1575         (gcd): Moved...
1576         (print_direction_vector): New.
1577         (dump_data_dependence_relation): Use print_direction_vector.
1578         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1579         (compute_subscript_distance): Static.
1580         (initialize_data_dependence_relation): Static.  Get the number
1581         of loops surrounding the references from the callers, and initialize
1582         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1583         base_object_differ_p analyzers.
1584         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1585         compute_overlap_steps_for_affine_1_2,
1586         analyze_subscript_affine_affine): Count the classified dependences.
1587         Print a message when a test failed.
1588         (can_use_analyze_subscript_affine_affine): New.
1589         (analyze_siv_subscript): Compute the data dependences on symbolic
1590         scevs that verify can_use_analyze_subscript_affine_affine.
1591         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1592         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1593         Handle symbolic scevs.
1594         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1595         analyzed.
1596         (subscript_dependence_tester): Moved...
1597         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1598         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1599         DDR_SIZE_VECT instead of getting it in parameter.
1600         (subscript_dependence_tester): ... here.  Take as a parameter
1601         loop_nest_depth.  Call build_classic_dist_vector and
1602         build_classic_dir_vector.
1603         (compute_affine_dependence): Update subscript_dependence_tester
1604         parameters.  Update datadep_stats counters.  Call
1605         compute_subscript_distance.
1606         (compute_self_dependence): Save the dist and dir vectors.  Call
1607         compute_subscript_distance.
1608         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1609         (compute_all_dependences): Reorder parameters as they were before
1610         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1611         compute_subscript_distance.  Update the use of
1612         compute_affine_dependence and initialize_data_dependence_relation.
1613         (find_data_references_in_loop): Handle COMPONENT_REF.
1614         (compute_data_dependences_for_loop): Initialize dependence_stats.
1615         Don't call build_classic_dist_vector and build_classic_dir_vector.
1616         Update the parameters of initialize_data_dependence_relation and
1617         compute_all_dependences.  Print the statistics from datadep_stats.
1618         (analyze_all_data_dependences): Static.  Not used until the pass for
1619         checking the data dependences is contributed.
1620         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1621         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1622         (initialize_data_dependence_relation, compute_affine_dependence,
1623         analyze_all_data_dependences, compute_subscript_distance): Removed.
1624         (print_direction_vector): New.
1625         * lambda.h (gcd): ... here.
1626         (lambda_vector_gcd): Moved here from gcd_vector.
1627         * lambda-code.c (gcd, gcd_vector): Removed.
1628         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1629         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1630
1631 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1632
1633         * ipa-type-escape.c: Tidy some comments and white space.
1634         * tree-ssa-operands.c: Likewise.
1635
1636 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1637
1638         PR tree-opt/25879
1639         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1640         (dump_decl_name): Do not walk the decl tree chains.
1641         * tree-pass.h (TDF_CHAIN): Remove.
1642
1643 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1644
1645         * Makefile.in (C): Remove
1646         (PROTO): Remove
1647         (.PHONY): Remove C and PROTO
1648
1649 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1650
1651         PR middle-end/26236
1652         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1653         deprecated CHAR_TYPE tree code.
1654
1655 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1656
1657         * configure.ac (target_list): Add install-info, dvi, html.
1658         * configure: Regenerate.
1659
1660         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1661         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1662         treelang/Make-lang.in: Do not use double-colon rules.
1663
1664 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1665
1666         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1667         (TMT_USED_ALONE): New macro.
1668         * tree-pass.h (PROP_tmt_usage): New property.
1669         (TODO_update_tmt_usage): New todo.
1670         * tree-ssa-alias.c (updating_used_alone): New variable.
1671         (recalculate_used_alone): New function.
1672         (compute_may_aliases): Set updating_used_alone, call
1673         recalculate_used_alone.
1674         * tree-sra.c (pass_sra): Note that this pass destroys
1675         PROP_tmt_usage, and add TODO_update_tmt_usage.
1676         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1677         * tree-flow.h (updating_used_alone): Prototype.
1678         (recalculate_used_alone): Ditto.
1679         * passes.c (execute_todo): Add code to set updating_used_alone,
1680         and call recalculate.
1681         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1682         for clobber if used alone, and add assert to verify used_alone
1683         status.
1684
1685 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1686
1687         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1688         for non tls symbols added.
1689         (legitimize_address): Do nothing for PLUS expressions if one of the
1690         addends is a tls symbol reference.
1691
1692 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1693
1694         PR bootstrap/25476
1695
1696         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1697
1698         * Makefile.in (BOOTSTRAPPING): New.
1699         (quickstrap): New definition if BOOTSTRAPPING=yes.
1700
1701         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1702         * configure.ac: Substitute all_selected_languages with the languages
1703         that were configured.  For all the other variables except
1704         lang_specs_files, include all the languages in the tree.
1705         * configure: Regenerate.
1706
1707         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1708         if there is one.  Run the commands to run fixincludes in the same
1709         subshell.
1710
1711         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1712         * doc/install.texi: Document exact conventions for searching target tools.
1713         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1714         something more about building an Ada cross-compiler.  Don't list GNU Make
1715         requirements which affect all platforms.
1716
1717 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1718
1719         PR middle-end/19543
1720         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1721         only equivalent if the have both the same mode and precision.
1722
1723 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1724
1725         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1726
1727 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1728             Steven Bosscher  <stevenb.gcc@gmail.com>
1729
1730         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1731         constant pool references to identify stack mode constants.
1732         * rtlanal.c (constant_pool_constant_p): New predicate to check
1733         whether operand is a floating point constant in the pool.
1734         * rtl.h (constant_pool_constant_p): Prototype here.
1735         * loop.c (scan_loop): Avoid hoisting constants from the constant
1736         pool on STACK_REGS targets.
1737         (load_mems): Likewise.
1738         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1739         loads into x87 registers expensive in terms of register pressure.
1740
1741 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1742
1743         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1744         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1745
1746 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1747
1748         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1749         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1750
1751 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1752
1753         * doc/invoke.texi: Document -fipa-pta.
1754         * common.opt: Add ipa-pta option.
1755         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1756         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1757         (do_ds_constraint): Ditto.
1758         (get_constraint_for): Only add to referenced_vars if
1759         referenced_vars exists.
1760         (insert_into_field_list): Rewrite to do this unsorted.
1761         (insert_into_field_list_sorted): Rename old insert_into_field_list
1762         to this.
1763         (create_function_info_for): Use insert_into_field_list_sorted.
1764         (create_variable_info_for): Rewrite so it uses unsorted version,
1765         since the field list is sorted.
1766         (intra_create_variable_infos): Only add to referenced_vars if
1767         referenced_vars exists.
1768         (ipa_pta_execute): Init heapvars, and delete when done.
1769         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1770
1771 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1772
1773         * doc/install.texi: Add missing `@samp'.
1774
1775 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1776
1777         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1778         Use the arguments.
1779
1780 2006-02-18  Mark Wielaard  <mark@klomp.org>
1781
1782         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1783         who added new 4.1 features, bug fixes and integration support.
1784
1785 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1786
1787         PR target/26350
1788         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1789         MEM for ABI_V4 pic.
1790
1791 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1792
1793         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1794         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1795         (copy_insn_1): Likewise.  Don't copy each field individually.
1796         Reindent.
1797         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1798         of RTX_SIZE.
1799         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1800         * rtl.c (rtx_size): Rename variable to...
1801         (rtx_code_size): ...this.
1802         (rtx_size): New function.
1803         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1804         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1805         Reindent.
1806         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1807         * rtl.h (rtx_code_size): New variable.
1808         (rtx_size): Change from a variable to a function.
1809         (RTX_SIZE): Rename to...
1810         (RTX_CODE_SIZE): ...this.
1811
1812         PR target/9703
1813         PR tree-optimization/17106
1814         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1815         (Anchored Addresses): New section.
1816         * doc/invoke.texi (-fsection-anchors): Document.
1817         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1818         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1819         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1820         * hooks.c (hook_bool_mode_rtx_false): New function.
1821         * hooks.h (hook_bool_mode_rtx_false): Declare.
1822         * gengtype.c (create_optional_field): New function.
1823         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1824         SYMBOL_REF_IN_BLOCK_P is true.
1825         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1826         (min_anchor_offset, max_anchor_offset): Likewise.
1827         (use_anchors_for_symbol_p): New hook.
1828         * toplev.c (compile_file): Call output_object_blocks.
1829         (target_supports_section_anchors_p): New function.
1830         (process_options): Check that -fsection-anchors is only used on
1831         targets that support it and when -funit-at-a-time is in effect.
1832         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1833         if the decl doesn't have one.
1834         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1835         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1836         of force_const_mem through use_anchored_address.
1837         (expand_expr_constant): New function.
1838         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1839         calling expand_expr for INDIRECT_REF.
1840         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1841         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1842         * expr.h (use_anchored_address): Declare.
1843         * loop-unroll.c: Don't declare rtx vectors here.
1844         * explow.c: Include output.h.
1845         (validize_mem): Call use_anchored_address.
1846         (use_anchored_address): New function.
1847         * common.opt (-fsection-anchors): New switch.
1848         * varasm.c (object_block_htab, anchor_labelno): New variables.
1849         (hash_section, object_block_entry_eq, object_block_entry_hash)
1850         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1851         (use_blocks_for_decl_p, change_symbol_section): New functions.
1852         (get_variable_section): New function, split out from assemble_variable.
1853         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1854         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1855         symbol has already been created.
1856         (assemble_variable_contents): New function, split out from...
1857         (assemble_variable): ...here.  Don't output any code for
1858         block symbols; just pass them to place_block_symbol.
1859         Use get_variable_section and assemble_variable_contents.
1860         (get_constant_alignment, get_constant_section, get_constant_size): New
1861         functions, split from output_constant_def_contents.
1862         (build_constant_desc): Create a block symbol if use_object_blocks_p
1863         says so.  Or into SYMBOL_REF_FLAGS.
1864         (assemble_constant_contents): New function, split from...
1865         (output_constant_def_contents): ...here.  Don't output any code
1866         for block symbols; just pass them to place_section_symbol.
1867         Use get_constant_section and get_constant_alignment.
1868         (force_const_mem): Create a block symbol if use_object_blocks_p and
1869         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1870         (output_constant_pool_1): Add an explicit alignment argument.
1871         Don't switch sections here.
1872         (output_constant_pool): Adjust call to output_constant_pool_1.
1873         Switch sections here instead.  Don't output anything for block symbols;
1874         just pass them to place_block_symbol.
1875         (init_varasm_once): Initialize object_block_htab.
1876         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1877         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1878         (place_block_symbol, get_section_anchor, output_object_block)
1879         (output_object_block_htab, output_object_blocks): New functions.
1880         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1881         (TARGET_ASM_OUT): Include it.
1882         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1883         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1884         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1885         (TARGET_INITIALIZER): Include them.
1886         * rtl.c (rtl_check_failed_block_symbol): New function.
1887         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1888         (block_symbol, object_block): New structures.
1889         (rtx_def): Add a block_symbol field to the union.
1890         (BLOCK_SYMBOL_CHECK): New macro.
1891         (rtl_check_failed_block_symbol): Declare.
1892         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1893         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1894         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1895         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1896         * output.h (output_section_symbols): Declare.
1897         (object_block): Name structure.
1898         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1899         (default_use_anchors_for_symbol_p): Declare.
1900         * Makefile.in (RTL_BASE_H): Add vec.h.
1901         (explow.o): Depend on output.h.
1902         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1903         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1904         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1905         (rs6000_use_blocks_for_constant_p): New function.
1906
1907 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1908
1909         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1910
1911 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1912
1913         PR tree-opt/25680
1914         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1915         IMAGPART_EXPR.
1916
1917 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1918
1919         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1920         is_aliased.
1921         Update all users.
1922
1923 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1924
1925         PR middle-end/26334
1926         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1927         instead of DECL_REGISTER.
1928
1929 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1930
1931         PR ada/13408
1932         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1933
1934 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1935
1936         PR target/24837
1937         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1938         * opth-gen.awk: Handle Var and InverseMask together.
1939         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1940         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1941         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1942         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1943         used together.
1944         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1945         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1946         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1947         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1948         LINUX_DYNAMIC_LINKER): Define.
1949         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1950         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1951         TARGET_GLIBC.
1952         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1953         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1954         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1955         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1956         (TARGET_C99_FUNCTIONS): Don't define.
1957         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1958         GLIBC_DYNAMIC_LINKER.
1959         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1960         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1961         GLIBC_DYNAMIC_LINKER64): Define.
1962         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1963         LINUX_DYNAMIC_LINKER64.
1964         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1965         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1966         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1967         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1968         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1969         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1970         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1971         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1972         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1973         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1974         and LINUX_DYNAMIC_LINKER32.
1975         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1976         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1977         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1978         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1979         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1980         TARGET_GLIBC.
1981         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1982         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1983         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1984         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1985         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1986         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1987         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1988         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1989         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1990         LINUX_DYNAMIC_LINKER): Define.
1991         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1992         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1993         GLIBC_DYNAMIC_LINKER64): Define.
1994         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1995         LINUX_DYNAMIC_LINKER64.
1996         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1997         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1998         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1999         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
2000         LINUX_DYNAMIC_LINKER): Define.
2001         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2002         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
2003         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
2004         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
2005         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
2006         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
2007         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
2008         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
2009         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
2010         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2011         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2012         * doc/invoke.texi (-muclibc): Remove caveat about supported
2013         targets.
2014
2015 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
2016
2017         * doc/cpp.texi (__TIMESTAMP__): Document.
2018
2019 2006-02-17  Roger Sayle  <roger@eyesopen.com>
2020
2021         PR middle-end/25600
2022         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
2023         C is one less than the width of X (and related transformations).
2024         * simplify-rtx.c (simplify_unary_operation_1): Transform
2025         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
2026         depending on STORE_FLAG_VALUE, were C is one less then the
2027         width of X.
2028
2029 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
2030
2031         Fix PR tree-optimization/26341
2032         * tree-ssa-operands.c (add_virtual_operand): Remove assert
2033         about NAME_MEMORY_TAG's.
2034
2035 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2036
2037         PR target/26255
2038         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
2039         with hardware float support, and software float support.  Add fcpy
2040         alternative to hardware patterns.  Add alternatives to copy between
2041         general and floating-point registers to the 32-bit pattern.
2042         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
2043         secondary reload to load a QI or HI mode constant into a floating
2044         point register.
2045         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
2046         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
2047
2048 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
2049
2050         PR target/26272
2051         * config/rs6000/darwin.md (load_macho_picbase_si): Add
2052         pc to the pattern.
2053         (load_macho_picbase_di): Likewise.
2054
2055 2006-02-16  Jeff Law  <law@redhat.com>
2056
2057         * tree-vrp.c (set_value_range_to_nonnegative): New function.
2058         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
2059         (ssa_name_nonzero_p): Likewise.
2060         (get_value_range): Return NULL if VRP is not running.
2061         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
2062         VRP routines do not discover a range.
2063         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
2064         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
2065         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
2066         (tree_expr_nonnegative_p): Similarly.
2067         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
2068         (restore_nonzero_vars_to_original_value): Remove.
2069         (unsafe_associative_fp_binop): Remove.
2070         (tree_ssa_dominator_optimize): Remove initialization and
2071         finalization of nonzero_vars and nonzero_vars_stack.
2072         (dom_opt_initialize_block): No longer push marker on
2073         nonzero_vars_stack.
2074         (dom_opt_finalize_block): No longer call
2075         restore_nonzero_vars_to_original_value.
2076         (record_equivalences_from_phis): No longer look for
2077         nonzero PHI arguments.
2078         (cprop_into_successor_phis): No longer propagate nonzero
2079         property into PHI arguments.  Lose unused argument.  Caller
2080         updated.
2081         (record_equivalences_from_stmt): No longer record nonzero
2082         values for SSA_NAMEs.
2083         (lookup_avail_expr): No longer use nonzero_vars.
2084
2085         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
2086         for sizetype when sizetype is unsigned.
2087
2088 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
2089
2090         PR rtl-optimization/25603
2091         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
2092         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
2093         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
2094         with new meaning of SETS.
2095
2096 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
2097
2098         PR target/20353
2099         PR target/24578
2100         PR target/24837
2101         * config/linux.opt: New file.
2102         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
2103         LINUX_DYNAMIC_LINKER): Define.
2104         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
2105         * config.gcc (*-*-linux*): Define extra_options.
2106         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
2107         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
2108         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
2109         GLIBC_DYNAMIC_LINKER.
2110         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
2111         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2112         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
2113         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
2114         * doc/invoke.texi (GNU/Linux Options): New section.
2115
2116 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
2117
2118         * config/sparc/sparc.md (setjmp): Rewrite.
2119         (setjmp_32): Delete.
2120         (setjmp_64): Likewise.
2121
2122 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
2123
2124         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
2125          previous change.
2126
2127 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2128
2129         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
2130         read-write uses.
2131
2132 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
2133
2134         PR rtl-optimization/26296
2135         * Makefile.in (loop-invariant.c): Add except.h dependency.
2136         * loop-invariant.c: Include except.h.
2137         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
2138
2139 2005-02-16  Paul Brook  <paul@codesourcery.com>
2140
2141         * reload1.c (emit_reload_insns): Invalidate dead input registers used
2142         for reloads.
2143
2144 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
2145
2146         PR rtl-optimization/25636
2147         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
2148         when deciding whether an insn is an initializing insn.
2149
2150 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
2151
2152         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
2153         (tree_code_size): Ditto.
2154         * tree.h (struct tree_memory_tag): Remove parent_var.
2155         (struct tree_struct_field_tag): New.
2156         (SFT_OFFSET): New.
2157         (SFT_SIZE): New.
2158         (union tree_node): Add sft member.
2159         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
2160         specially here.
2161         (create_sft): Add size and offset argument, set SFT_OFFSET and
2162         SFT_SIZE.
2163         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
2164         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
2165         * tree-flow-inline.h (get_subvar_at): Update for
2166         SFT_OFFSET/SFT_SIZE.
2167         (var_can_have_subvars): Ditto.
2168         (overlap_subvar): Ditto.
2169         * print-tree.c (print_node): Print out interesting things for
2170         SFT's.
2171         * tree-flow.h (struct subvar): Remove offset and size members.
2172         * tree-ssa-operands.c (get_expr_operands): Update for
2173         get_indirect_ref_operands changes.
2174         (get_indirect_ref_operands): Call add_virtual_operand instead of
2175         add_stmt_operand.  Only recurse on base var if requested.
2176         (access_can_touch_variable): New function.
2177         (add_stmt_operand): Split virtual operand handling into ...
2178         (add_virtual_operand): Here.  Add offset, size, and for_clobber
2179         arguments.  Prune alias sets.
2180         (add_call_clobber_ops): Call add_virtual_operand.
2181
2182 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
2183
2184         PR middle-end/26300
2185         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
2186
2187         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
2188         than TREE_CODE as index into omp_clause_num_ops array.
2189
2190 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
2191
2192         PR rtl-optimization/26184
2193         * modulo-sched.c (generate_reg_moves): Free bitmap vector
2194         uses_of_defs.
2195         * modulo-sched.c (sms_schedule): Free g_arr pointer.
2196         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
2197         must_precede, must_follow and tobe_scheduled.
2198
2199         PR other/26147
2200         * opts.c (common_handle_option): Free new_option pointer.
2201         * df-core.c (df_analyze): Free postorder pointer.
2202
2203 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
2204
2205         * Makefile.in: Fix the examples about the use of stamps
2206
2207 2006-02-15  Michael Matz  <matz@suse.de>
2208
2209         PR middle-end/22275
2210
2211         * stor-layout.c (layout_decl): Zero-width bitfields aren't
2212         influenced by maximum_field_alignment or DECL_PACKED.
2213         (update_alignment_for_field): Ditto.
2214         (place_field): Ditto.
2215         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
2216         this behaviour.
2217
2218 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
2219
2220         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
2221         (debug_flow_info): Pass it.
2222         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
2223         * bb-reorder.c (reorder_basic_blocks): Likewise.
2224         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
2225         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
2226         * flow.c (life_analysis, recompute_reg_usage): Likewise.
2227         * gcse.c (gcse_main, bypass_jumps): Likewise.
2228         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
2229         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
2230         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
2231         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
2232         * rtl.h (dump_flow_info): Adjust prototype.
2233         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
2234         * var-tracking.c (variable_tracking_main): Likewise.
2235         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
2236         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
2237         options.
2238
2239 2006-02-15  Marcin Dalecki <martin@dalecki.de>
2240
2241         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
2242         construction.
2243
2244 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2245
2246         PR tree-optimization/26209
2247         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
2248         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
2249         eh edges.
2250         * tree-cfg.c (replace_uses_by): Do not alter cfg.
2251
2252 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2253
2254         PR middle-end/23670
2255         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
2256         (X,Y) and the corresponding symmetry related transformations.
2257         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
2258         (X,Y) and its symmetry related transformations.
2259
2260 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2261
2262         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
2263         and GEU.
2264
2265 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
2266
2267         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
2268
2269 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
2270
2271         PR bootstrap/26053
2272         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
2273         support COMDAT group.
2274         * configure: Regenerate.
2275
2276 2006-02-14  Roger Sayle  <roger@eyesopen.com>
2277
2278         PR middle-end/26279
2279         PR middle-end/26280
2280         PR middle-end/26283
2281         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
2282
2283 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
2284
2285         Fix PR tree-optimization/26260
2286
2287         * doc/invoke.texi (max-fields-for-field-sensitive): Document
2288         param.
2289         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
2290         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
2291         * tree-ssa-structalias.c (create_variable_info_for): Use
2292         MAX_FIELDS_FOR_FIELD_SENSITIVE.
2293
2294 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
2295
2296         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
2297         Document.
2298         * tree-ssa-loop-niter.c (number_of_iterations_ne,
2299         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
2300         of the ending condition.
2301         * tree-ssa-loop-manip.c: Include params.h.
2302         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
2303         tree_unroll_loop): New functions.
2304         * tree-pass.h (pass_loop_prefetch): Declare.
2305         * loop.c (rest_of_handle_loop_optimize): Test for
2306         -fprefetch-loop-arrays-rtl.
2307         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
2308         * timevar.def (TV_TREE_PREFETCH): New timevar.
2309         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
2310         pass_loop_prefetch): New.
2311         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
2312         (cleanup_tree_cfg_loop): Call scev_reset.
2313         * common.opt (fprefetch-loop-arrays-rtl): Add.
2314         * tree-ssa-loop-prefetch.c: New file.
2315         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
2316         (new_temp_expr_table): Initialize expr_vars.
2317         (free_temp_expr_table): Cleanup expr_vars.
2318         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
2319         expressions from being merged into one.
2320         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
2321         (struct tree_niter_desc): Add control, bound and cmp fields.
2322         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
2323         Declare.
2324         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
2325         (tree-cfgcleanup.o): Add SCEV_H dependency.
2326         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
2327         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
2328
2329 2006-02-14  Richard Guenther  <rguenther@suse.de>
2330
2331         PR tree-optimization/26258
2332         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
2333         in PHI argument processing.
2334
2335 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
2336
2337         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
2338         new expression in the requested machine mode.
2339
2340 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2341
2342         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
2343         directly, instead let do_compare_rtx_and_jump handle this for us.
2344         * expr.c (expand_expr_real_1): Likewise.
2345         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
2346         before do_jump_by_parts_greater.
2347         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
2348         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
2349
2350 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2351
2352         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
2353
2354 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2355
2356         PR rtl-optimization/26235
2357         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
2358         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
2359         format.
2360
2361 2006-02-13  Jeff Law  <law@redhat.com>
2362
2363         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
2364         TRUTH_XOR_EPR.
2365
2366 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
2367
2368         PR middle-end/26092
2369         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
2370         twice if decl is a builtin.  When trying again, call get_callee_fndecl
2371         first to verify it is still a builtin.
2372
2373 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
2374
2375         * dwarf2out.c (base_type_die): Don't add AT_name here.
2376         (subrange_type_die): Don't add AT_name here.
2377         (modified_type_die): Rearrange code flow.  Do add AT_name here.
2378
2379 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
2380
2381         PR rtl-optimization/26247
2382         PR rtl-optimization/26248
2383         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
2384
2385 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
2386
2387         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
2388         * config/fixtfdi.c: Likewise.
2389         * config/fixunstfdi.c: Likewise.
2390         * config/floatditf.c: Likewise.
2391
2392 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2393
2394         PR middle-end/24427
2395         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2396         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2397         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2398         (X&(C1&~C2))|C2.
2399         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2400
2401 2006-02-13  Josh Conner  <jconner@apple.com>
2402
2403         PR target/25376
2404         * varasm.c (function_section): Check for section name before
2405         calling select_section on targets that define
2406         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2407         unlikely_text_section instead of hot_function_section if
2408         first_function_block_is_cold.
2409
2410 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2411
2412         PR middle-end/25335
2413         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2414
2415 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2416
2417         PR rtl-optimization/26222
2418         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2419         after tree->rtl expansion.
2420         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2421         before passing it to emit_move_insn.
2422
2423 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2424
2425         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2426         default.
2427         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2428         Clarify documentation.
2429         * c-common.h (warn_write_strings): Remove.
2430         * c-common.c (warn_write_strings): Likewise.
2431         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2432         default for C++.
2433
2434 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2435
2436         PR middle-end/25724
2437         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2438         (do_jump_parts_zero_rtx): New function renamed from
2439         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2440         (do_jump_parts_equality_rtx): New function split out from
2441         do_jump_parts_equality.  Old implementation renamed as above.
2442         Call do_jump_parts_zero_rtx if either operand is zero.
2443         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2444         do all of the heavy lifting.
2445         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2446         calling either do_jump_by_parts_greater_rtx or
2447         do_jump_by_parts_equality_rtx.
2448         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2449         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2450         moved to do_compare_rtx_and_jump, call it directly.
2451         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2452         mode argument.  Call do_compare_rtx_and_jump.
2453         (emit_case_nodes): Update calls to do_jump_if_equal.
2454
2455 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2456
2457         PR rtl-optimization/26225
2458         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2459
2460 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2461
2462         PR rtl-optimization/26232
2463         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2464
2465 2006-02-11  Jason Merrill  <jason@redhat.com>
2466
2467         PR tree-opt/24365
2468         * tree-inline.c (declare_return_variable): Just don't use the
2469         modify target if it's a gimple complex reg and the return slot
2470         isn't.
2471
2472 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2473
2474         * doc/contrib.texi: Update my entry.
2475
2476 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2477
2478         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2479
2480 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2481
2482         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2483         expensive.
2484
2485 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2486
2487         * doc/invoke.texi (-floop-optimize2): Removed.
2488         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2489         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2490         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2491         * common.opt (floop-optimize2): Removed.
2492         (fmove-loop-invariants): Enabled by default.
2493
2494 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2495
2496         * tree-if-conv.c (combine_blocks): Free the result of
2497         get_loop_exit_edges.
2498
2499 2006-02-10  Jeff Law  <law@redhat.com>
2500
2501         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2502
2503         PR tree-optimization/26213
2504         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2505         loop trying to follow SSA_NAME_VALUE chains.
2506
2507 2006-02-10  Richard Guenther  <rguenther@suse.de>
2508
2509         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2510         deal with structures that end in implicitly variable sized arrays.
2511
2512 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2513
2514         PR rtl-optimization/24762
2515         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2516         eh edges.
2517
2518 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2519
2520         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2521         (struct ivopts_data): Add regs_used field.
2522         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2523         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2524         instead of loop_data->regs_used;
2525         (free_loop_data): Do not free aux fields for loops.
2526         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2527         and tree_ssa_iv_optimize_finalize.
2528
2529 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2530
2531         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2532
2533 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2534
2535         PR target/26141
2536         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2537         computing the effective result type.
2538
2539 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2540
2541         PR inline-asm/16194
2542         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2543         (tree_overlaps_hard_reg_set): Declare.
2544         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2545         type and signature to match function type expected by walk_tree.
2546         (tree_overlaps_hard_reg_set): New function.
2547         (decl_conflicts_with_clobbers_p): Rename to:
2548         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2549         Use tree_overlaps_hard_reg_set.  Changed caller.
2550         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2551         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2552         * cris.c (cris_md_asm_clobbers): Likewise.
2553
2554 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2555
2556         * reload1.c (emit_input_reload_insns): Delete code that tries to
2557         inherit using find_equiv_reg.
2558
2559 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2560
2561         * c-common.h (flag_const_strings): Don't declare.
2562         * c-common.c (flag_const_strings): Remove.
2563         * c.opt (fconst_strings): Remove.
2564         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2565         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2566         (c_common_init_options): Don't set flag_const_strings.
2567         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2568
2569 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2570
2571         * arm.md (tlobits_cbranch): New pattern.
2572         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2573         testing a single bit.
2574
2575 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2576
2577         PR tree-opt/26179
2578         * tree-ssa-pre.c (create_component_ref_by_pieces):
2579         Handle RETURN_DECL like VAR_DECL.
2580
2581 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2582
2583         PR middle-end/26134
2584         * fold-const.c (fold_indirect_ref_1): Fold
2585         "*(foo *)&complexfoo" to "__real__ complexfoo"
2586         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2587
2588 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2589
2590         * tree-flow-inline.h (var_can_have_subvars):
2591         Volatile variables should not have subvariables.
2592
2593 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2594
2595         PR 26180
2596         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2597         multiplying unsigned values.
2598         Tidy comments.
2599
2600 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2601
2602         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2603
2604 2006-02-08  Jason Merrill  <jason@redhat.com>
2605
2606         PR c++/25979
2607         * tree.def: Elaborate on difference from MODIFY_EXPR.
2608         * doc/c-tree.texi (INIT_EXPR): Likewise.
2609         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2610         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2611         (gimplify_target_expr): Likewise.
2612         (gimplify_cond_expr): Remove target handling.
2613         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2614         (gimplify_expr): Clobber it here.
2615         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2616         Do return slot optimization if we have an INIT_EXPR.
2617
2618         PR tree-opt/24365
2619         * tree-inline.c (declare_return_variable): Also clear
2620         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2621
2622         PR c++/16405
2623         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2624
2625         PR middle-end/22439
2626         * gimplify.c (gimplify_one_sizepos): Fix typo.
2627
2628 2006-02-08  Jeff Law  <law@redhat.com>
2629
2630         PR tree-optimization/21417
2631         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2632         across a backedge if the control statement at the end of the
2633         block is data dependent on other statements in the same block.
2634         (record_temporary_equivalences_from_stmts): Remove over-conservative
2635         test for threading across backedges.
2636
2637         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2638         control statement, handle all three special cases in the same
2639         manner as they all have the same desired solution.  No longer
2640         special case edge flag updating when the post dominator is
2641         the exit block.
2642
2643 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2644
2645         * tree.def (CHAR_TYPE): Remove.
2646         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2647         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2648         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2649         (gen_string_type_die): Delete unreachable function.
2650
2651         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2652         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2653         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2654         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2655         * builtins.c (type_to_class): Likewise.
2656         * fold-const.c (fold_convert, build_range_check,
2657         merge_ranges): Likewise.
2658         * expr.c (count_type_elements): Likewise.
2659         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2660         * stor-layout.c (layout_type): Likewise.
2661         * ipa-type-escape.c (type_to_consider): Likewise.
2662         * gimplify.c (omp_firstprivatize_type_sizes,
2663         gimplify_type_sizes): Likewise.
2664         * explow.c (promote_mode): Likewise.
2665         * tree-sra.c (is_sra_scalar_type): Likewise.
2666         * varasm.c (output_constant): Likewise.
2667         * tree-inline.c (remap_type_1): Likewise.
2668         * convert.c (convert_to_pointer, convert_to_real,
2669         convert_to_integer, convert_to_complex): Likewise.
2670
2671 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2672
2673         * df-scan.c (df_def_record_1): A set destination may
2674         be a parallel regardless of mode.
2675
2676 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2677
2678         PR target/22209
2679         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2680         * config/mips/_tilib.c: Remove.
2681         * config/fixtfdi.c: New libgcc source file.
2682         * config/fixunstfdi.c: New source file.
2683         * config/floatditf.c: New source file.
2684         * config/floatunditf.c: New souce file.
2685         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2686         files above instead of config/mips/_tilib.c.
2687         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2688
2689 2006-02-08  Jeff Law  <law@redhat.com>
2690
2691         PR tree-optimization/26169
2692         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2693         threading jumps.
2694
2695 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2696
2697         * df.h (DF_REG_SIZE): Return the length of the initialized
2698         part of the array.
2699
2700 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2701
2702         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2703         __muldf3): Return a correctly signed zero.
2704
2705 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2706
2707         * passes.c (register_one_dump_file): Accept the current properties
2708         instead of pass number.  Adjust call to dump_register.  Remove
2709         duplicated code.
2710         (register_dump_files): Now a wrapper around...
2711         (register_dump_files_1): ... this one.  Do not modify the pass
2712         structure.
2713         (next_pass_1): Cosmetic fix.
2714         (execute_todo): Keep second parameter only.  Use curr_properties
2715         instead of fetching it from the pass structure.  Check and set
2716         last_verified.
2717         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2718         instead of fetching it from the pass structure.  Fix calls to
2719         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2720         after running the pass.  Reset last_verified.
2721         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2722         at the beginning.
2723         (FIRST_AUTO_NUMBERED_DUMP): New.
2724         (dump_register): Remove "num" parameter, assign it within the
2725         function.
2726         (get_dump_file_name): Modify template for dumps.
2727         * tree-dump.h (dump_register): Adjust prototype.
2728         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2729         (PROP_trees): Add PROP_gimple_lomp.
2730         (TODO_set_props): New.
2731         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2732         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2733         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2734
2735 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2736
2737         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2738         (sparc64-*-linux*): Likewise.
2739         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2740         * config/sparc/t-linux: New file.
2741         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2742         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2743         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2744         -m32 -mlong-double-128.
2745
2746         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2747         * config/alpha/t-linux: New file.
2748         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2749
2750         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2751         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2752         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2753         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2754         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2755         (CPP_ARCH32_SPEC): Remove.
2756
2757 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2758
2759         PR tree-optimization/26145
2760         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2761         bbs pointer.
2762
2763 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2764
2765         PR target/26109
2766         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2767         >= 240000 when generating code for SOM runtime.
2768         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2769         to $$dyncall when generating code for SOM runtime..
2770
2771 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2772
2773         PR c++/18150
2774         * doc/invoke.texi (-Wsequence-point): Update documentation
2775         that -Wsequence-point is implemented for C++ as well.
2776
2777 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2778
2779         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2780         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2781         (LIB_SPEC): Likewise.
2782         * doc/invoke.texi (SPARC options): Document -pthread.
2783
2784 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2785
2786         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2787         PIC addresses.
2788
2789 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2790
2791         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2792         Correct comment describing BOOLEAN_TYPE.
2793
2794 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2795
2796         * c.opt: C++ frontend supports -Wdiv-by-zero.
2797         * c-opts.c (c_common_handle_option): Remove dead case.
2798
2799 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2800
2801         * configure.ac (TLS assembler check): Do not enable TLS by
2802         default on SPARC/Solaris before version 10.
2803         * configure: Regenerate.
2804
2805 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2806
2807         * doc/invoke.texi (xl-compat): Document conversion and support
2808         routine names.
2809
2810 2006-02-07  Jeff Law  <law@redhat.com>
2811
2812         * tree-vrp.c (find_conditional_asserts): Update comments.
2813         (simplify_stmt_for_jump_threading): New.
2814         (identify_jump_threads, finalize_jump_threads): New.
2815         (vrp_finalize): Call identify_jump_threads.
2816         (execute_vrp): Call finalize_jump_threads.
2817         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2818         (vrp_element, vrp_data, vrp_element_p): Remove.
2819         (vrp_hash_elt, vrp_variables_stack): Remove.
2820         (vrp_hash, vrp_eq, record_range): Remove.
2821         (simplify_cond_and_lookup_avail_expr): Remove.
2822         (extract_range_from_cond): Remove.
2823         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2824         (simplify_stmt_for_jump_threading): New.
2825         (dom_thread_across_edge): New wrapper.
2826         (tree_ssa_dominator_optimize): No longer initialize or
2827         finalize any of the VRP datastructures.  Remove iteration
2828         step and simplify as a result of removal of iteration step.
2829         (pass_dominator): Perform a cfg cleanup after DOM.
2830         (dom_opt_finalize_block): Use the new common routines
2831         for threading jumps.  Simplify stack management slightly.
2832         No longer need to unwind VRP state.
2833         (record_equivalences_from_incoming_edge): No longer record
2834         VRP information.
2835         (eliminate_redundant_computations): No longer call
2836         simplify_cond_and_lookup_avail_expr.
2837         * tree-flow.h (potentially_threadable_block): Prototype.
2838         (thread_across_edge): Likewise.
2839         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2840         (tree-ssa-threadedge.o): Add dependencies.
2841         * tree-ssa-threadedge.c: New file.
2842         * passes.c (init_optimization_passes): Merge PHIs before
2843         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2844
2845 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2846
2847         * df-core.c (df_set_blocks): Do not dereference function pointers.
2848         (df_finish1): Likewise.
2849         (df_hybrid_search_forward): Likewise.
2850         (df_hybrid_search_backward): Likewise.
2851         (df_iterative_dataflow): Likewise.
2852         (df_analyze_problem): Likewise.
2853         (df_compact_blocks): Likewise.
2854         (df_dump): Likewise.
2855         * df-scan.c (df_rescan_blocks): Likewise.
2856         (df_record_entry_block_defs): Likewise.
2857
2858         * genconditions.c (write_conditions): Guard the definition of
2859         'insn_conditions' with the check on GCC version.
2860         (write_writer): Guard the traversal 'insn_conditions' with
2861         the check on GCC version.
2862
2863 2006-02-07  Richard Guenther  <rguenther@suse.de>
2864
2865         PR c++/26140
2866         Revert
2867         2006-01-30  Richard Guenther  <rguenther@suse.de>
2868         PR c++/23372
2869         * gimplify.c (gimplify_target_expr): Handle easy cases
2870         without creating a temporary.
2871
2872 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2873
2874         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2875         use of float in probability computations.  Use edge probabilities
2876         in place of statically computed probabilities.
2877         (min_spec_prob): New static variable.
2878         (schedule_insns): Initialize it.
2879         (GET_SRC_PROB): Removed.
2880         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2881
2882 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2883
2884         PR debug/24444
2885         * config/ia64/unwind-ia64.c: Revert last change.
2886         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2887         (INCOMING_FRAME_SP_OFFSET): Define.
2888
2889 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2890
2891         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2892
2893 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2894
2895         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2896         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2897         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2898         (ix86_return_in_memory): Handle TDmode.
2899         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2900         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2901
2902 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2903
2904         * reorg.c (dbr_schedule): Use dump_file instead of file.
2905
2906 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2907
2908         PR target/25917
2909         * config/ia64/predicates.md (extr_len_operand): New predicate.
2910         * config/ia64/ia64.md (extv): Tighten constraints.
2911         (extzv): Ditto.
2912         (*tbit_and_2): Ditto.
2913         (*tbit_and_3): Ditto.
2914         (*tbit_or_2): Ditto.
2915         (*tbit_or_3): Ditto.
2916         (*bit_zero): Ditto.
2917         (*bit_one): Ditto.
2918
2919 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2920
2921         PR target/23359
2922         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2923
2924 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2925
2926         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2927         loop_optimizer_init and loop_optimizer_finalize
2928         * tree-ssa-sink.c (execute_sink_code): Ditto.
2929         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2930         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2931         tree_ssa_loop_done): Ditto.
2932         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2933         * sched-ebb.c: Include output.h.
2934         (schedule_ebbs): Do not use dump argument.
2935         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2936         * loop.c (loop_dump_stream): Removed.
2937         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2938         argument.
2939         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2940         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2941         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2942         loop_iterations, strength_reduce, record_biv, record_giv,
2943         final_giv_value, check_final_value, check_ext_dependent_givs,
2944         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2945         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2946         dump_file instead of loop_dump_stream.
2947         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2948         argument dump_file.
2949         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2950         dump argument.
2951         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2952         * haifa-sched.c: Include output.h
2953         (schedule_insns, sched_init): Do not use dump argument.
2954         * mode-switching.c (optimize_mode_switching): Ditto.
2955         * modulo-sched.c (stats_file): Removed.
2956         (print_node_sched_params): Do not call argument dump_file.
2957         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2958         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2959         of stats_file.
2960         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2961         use dump argument.
2962         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2963         rtl_loop_init, rtl_loop_done): Ditto.
2964         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2965         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2966         Ditto.
2967         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2968         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2969         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2970         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2971         * emit-rtl.c (renumber_insns): Ditto.
2972         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2973         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2974         * regclass.c (regclass): Ditto.
2975         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2976         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2977         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2978         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2979         Ditto.
2980         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2981         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2982         to regclass.
2983         * gcse.c (gcse_file, debug_stderr): Removed.
2984         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2985         rest_of_handle_gcse): Do not use dump argument.
2986         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2987         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2988         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2989         compute_code_hoist_vbeinout, compute_code_hoist_data,
2990         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2991         compute_store_table, build_store_vectors, insert_insn_start_bb,
2992         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2993         store_motion): Use dump_file instead of gcse_file.
2994         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2995         * profile.c (profile_dump_file): Removed.
2996         (branch_prob): Use dump_file instead of profile_dump_file.
2997         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2998         dump_file.
2999         * tree-ssa-copy.c (dump_copy_of): Ditto.
3000         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
3001         dump file to life_analysis.
3002         * bt-load.c (branch_target_load_optimize): Ditto.
3003         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
3004         renumber_insns.
3005         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
3006         regclass, dbr_schedule): Declaration changed.
3007         * sched-int.h (sched_init): Declaration changed.
3008         * tree-profile.c (tree_profile_dump_file): Removed.
3009         (tree_profile_hooks): Removed profile_dump_file hook.
3010         * rtl-profile (rtl_profile_dump_file): Removed.
3011         (rtl_profile_hooks): emoved profile_dump_file hook.
3012         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
3013         changed.
3014         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
3015         * tree-cfg.c (build_tree_cfg): Ditto.
3016         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
3017         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
3018         Declaration changed.
3019         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
3020         life_analysis and schedule_insns.
3021         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
3022         life_analysis.
3023         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
3024         dbr_schedule.
3025         * config/mips/mips.c (mips_reorg): Ditto.
3026         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
3027         schedule_ebbs.
3028
3029 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
3030
3031         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3032         (s390_mangle_fundamental_type): New.
3033         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3034         Define.
3035
3036         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3037         (alpha_mangle_fundamental_type): New.
3038         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3039         Define.
3040
3041         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3042         Define.
3043         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
3044         Define.
3045         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
3046         (sparc_mangle_fundamental_type): New.
3047
3048 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
3049
3050         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
3051         (s390x-*-linux*): Likewise.
3052         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
3053         * config/s390/t-linux: New file.
3054
3055 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3056
3057         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
3058         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
3059
3060 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
3061
3062         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
3063         (ANTIC_SAFE_LOADS): New macro.
3064         (find_or_generate_expression): Add prototype.
3065         (set_contains_value): Allow null set for sake of not always having
3066         to allocate ANTIC_SAFE_LOADS.
3067         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
3068         Allow COMPONENT_REF too.
3069         (valid_in_set): Allow COMPONENT_REF.
3070         Check ANTIC_SAFE_LOADS too.
3071         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
3072         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
3073         rename.
3074         (can_PRE_operation): Add COMPONENT_REF.
3075         (create_component_ref_by_pieces): New function.
3076         (create_expression_by_pieces): Use create_component_ref_by_pieces.
3077         (insert_aux): Move AGGREGATE_TYPE_P check here.
3078         (compute_avail): Set bb local stmt uids.
3079         (pass_pre): Use TODO_update_ssa_only_virtuals.
3080
3081 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3082
3083         * configure.ac: Unconditionally disable decimal float by default.
3084         * configure: Regenerate.
3085
3086 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3087
3088         * read-rtl.c (read_name): Terminate reading on EOF.
3089
3090 2006-02-06  Ben Elliston  <bje@au.ibm.com>
3091
3092         * dfp.c (decimal_real_arithmetic): Change second argument type
3093         from int to enum tree_code. Do not always return true, but now
3094         return result of any call to decimal_do helper functions.
3095         * dfp.h (decimal_real_arithmetic): Update prototype.
3096
3097 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
3098
3099         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
3100
3101 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
3102
3103         PR tree-opt/25251
3104         * tree-cfg.c (cleanup_dead_labels): Also don't remove
3105         forced labels.
3106
3107 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3108
3109         * tree-vrp.c (cfg_loops): Removed.
3110         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
3111         Use current_loops instead of cfg_loops.  Pass flags to
3112         loop_optimizer_init.
3113         * cfgloopmanip.c (fix_loop_structure): Update only available
3114         information.
3115         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
3116         loop_optimizer_init.
3117         * modulo-sched.c (build_loops_structure): Removed.
3118         (sms_schedule): Use loop_optimizer_init.
3119         * loop-init.c (loop_optimizer_init): Use flags to determine
3120         which properties of loops to prepare.
3121         (rtl_loop_init): Pass flags to loop_optimizer_init.
3122         * tree-ssa-sink.c (execute_sink_code): Ditto.
3123         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
3124         * tree-ssa-pre.c (init_pre): Ditto.
3125         * cfgloop.h (LOOPS_NORMAL): New.
3126         (loop_optimizer_init): Declaration changed.
3127
3128 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3129
3130         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
3131         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
3132         pa/t-pa.
3133         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
3134         pa/t-pa.
3135         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
3136         pa/x-ada.
3137         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
3138         * pa/t-pa64: Delete quadlib.c rule.
3139         * pa/x-ada: Revert last change.
3140         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
3141
3142 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
3143
3144         PR rtl-optimization/26087
3145         * rtlanal.c (canonicalize_condition): Do not cross basic block
3146         boundaries.
3147
3148 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
3149
3150         PR debug/24444
3151         * config/ia64/ia64.c: Include debug.h.
3152         (MAX_ARTIFICIAL_LABEL_BYTES): New.
3153         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
3154         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
3155         (process_epilogue, process_set, process_for_unwind_directive):
3156         Output unwind info only if requested.  Add CFA info if requested.
3157         Add new arguments as needed.  Adjust callers.
3158         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
3159         incorrect default.
3160         (DWARF2_FRAME_INFO): Define to zero.
3161         * config/ia64/unwind-ia64.c: Remove code that compensated for
3162         the CFA offset error fixed above.
3163         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
3164         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
3165         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
3166         -funwind-tables and -fexceptions to enable frame info.
3167         (dwarf2out_frame_init): Define initial CFA even if
3168         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
3169         DWARF2_UNWIND_INFO is nonzero, not just defined.
3170         (dwarf2out_frame_finish): Output non-EH call frame info only
3171         if DWARF2_FRAME_INFO is nonzero.
3172         (convert_cfa_to_loc_list,
3173         compute_frame_pointer_to_cfa_displacement): Define even if
3174         unwind info is not supported.
3175         (gen_subprogram_die): Use the above unconditionally.  Remove
3176         legacy alternate code.
3177         * toplev.c (compile_file): Compile in call to
3178         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
3179         (lang_dependent_init): Ditto for dwarf2out_frame_init.
3180
3181 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
3182             Jakub Jelinek  <jakub@redhat.com>
3183
3184         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
3185         IBM extended float format long double as "g" on powerpc*-linux.
3186
3187 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3188
3189         PR target/25926
3190         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
3191         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
3192
3193 2006-02-03  Jason Merrill  <jason@redhat.com>
3194
3195         PR c++/25979
3196         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
3197
3198         PR middle-end/25977
3199         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
3200         on the return slot if it's an NRV.
3201
3202 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
3203
3204         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
3205         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
3206         rewrite_use): Do not handle USE_OUTER.
3207         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
3208         add_iv_outer_candidates, may_replace_final_value,
3209         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
3210         (find_interesting_uses_op): Functionality of
3211         find_interesting_uses_outer_or_nonlin moved here.
3212         (find_interesting_uses_outside): Use find_interesting_uses_op.
3213
3214 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
3215
3216         PR target/25960
3217         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
3218
3219 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
3220             Ulrich Weigand  <uweigand@de.ibm.com>
3221
3222         PR target/25864
3223         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
3224         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
3225         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
3226         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
3227         and dxr fields.
3228         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
3229         (s390_rtx_costs): Use the new fields to calculate rtx costs.
3230         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
3231         Define secondary reloads for TFmode moves.
3232         (constant_modes): Add TFmode.
3233         (NR_C_MODES): Set to 8.
3234         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
3235         builtin define.
3236         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
3237         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
3238         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
3239         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
3240         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
3241         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
3242         (FPR mode macro): Add TFmode.
3243         (DSF mode macro): New.
3244         (<de>, <dee> mode attributes): Removed.
3245         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
3246         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
3247         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
3248         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
3249         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
3250         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
3251         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
3252         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
3253         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
3254         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
3255         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
3256         "*negabs<mode>2", "sqrt<mode>2"):
3257         Changed <de> to <xde>. R constraint replaced by <Rf>.
3258         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
3259         <Rf>.
3260         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
3261         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
3262         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
3263         splitters.
3264         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
3265         "extenddftf2", "extendsftf2"): New expanders.
3266         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
3267         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
3268         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
3269         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
3270         New options.
3271         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
3272         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
3273         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
3274         __floatditf): Add a GCC_4.1.0 symbol version tag.
3275         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
3276         the new options.
3277
3278 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
3279
3280         PR target/25377
3281         * config/i386/i386.c (ix86_function_ok_for_sibcall):
3282         Use targetm.binds_local_p instead of TREE_PUBLIC.
3283
3284 2006-02-02  Roger Sayle  <roger@eyesopen.com>
3285
3286         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
3287         on INTEGER_TYPEs to indicate that it denotes a character type.
3288         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
3289         signed_char_type_node, unsigned_char_type_node and char_type_node.
3290         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
3291         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
3292         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
3293
3294 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
3295             Daniel Berlin  <dberlin@dberlin.org>
3296
3297         * tree-tailcall.c (arg_needs_copy_p): New function.
3298         (eliminate_tail_call): Use arg_needs_copy_p.
3299         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
3300         (add_virtual_phis): New function.
3301
3302 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
3303
3304         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
3305         #ignore instead of #scratch for %g7 .register directive.
3306
3307 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
3308
3309         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
3310         object files.
3311
3312 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
3313
3314         * flow.c (calculate_global_regs_live): Assert that there aren't any
3315         EDGE_FAKE edges.
3316
3317 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
3318
3319         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
3320         what its name says.
3321         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
3322         bsi_after_labels iterator.
3323         * tree-if-conv.c (find_phi_replacement_condition,
3324         replace_phi_with_cond_modify_expr): Likewise.
3325         * tree-scalar-evolution.c (scev_const_prop): Likewise.
3326         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
3327
3328 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3329
3330         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
3331
3332 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
3333
3334         PR 25990
3335         * tree-cfg.c (move_block_to_fn): Clear out the basic block
3336         array after growing it.
3337
3338 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3339
3340         PR middle-end/24901
3341         * fold-const.c (fold_checksum_tree): Change type of buf.
3342
3343 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
3344
3345         * reload.c (push_secondary_reload): Initialize t_icode.
3346
3347 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
3348
3349         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
3350         -msoft-float -mlong-double-128 only issue a warning, but don't
3351         swich to DFmode long double.
3352
3353 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
3354
3355         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
3356         has a constant equivalent, iterate over equivalents for arg0,
3357         calling simplify_relational_operation and if there's a result
3358         cheaper than X, apply fold_rtx and return the result.
3359
3360 2006-02-01  Jan Hubicka  <jh@suse.cz>
3361
3362         * opts.c (no_unit_at_a_time_default): New global variable.
3363         (decode_options): Use it.
3364         * opts.h (no_unit_at_a_time_default): Declare.
3365
3366 2006-02-01  Paul Brook  <paul@codesourcery.com>
3367
3368         * function.c (assign_parm_setup_reg): Use function argument promotion
3369         rules.
3370         * expr.c (expand_expr_real_1): Use function argument promotion rules
3371         for PARM_DECLs.
3372
3373 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
3374
3375         * gcc.c (process_command): Change j to 'unsigned int'.
3376
3377 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3378
3379         PR middle-end/26001
3380         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
3381         Use the corrected index for the character
3382         out of the string constant.
3383
3384 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3385
3386         * mode-switching.c (optimize_mode_switching): Fix size
3387         allocated for bb_info[n_entities].
3388
3389 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3390
3391         * gcc.c (main): Correct type that is allocated for
3392         explicit_link_files.
3393
3394 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3395
3396         * config/s390/s390.c (init_alignment_context): Set
3397         ALIAS_SET_MEMORY_BARRIER on the MEM.
3398         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3399
3400 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3401
3402         PR middle-end/25933
3403         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3404         dom_bbs pointer.
3405         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3406         call to tpa_init.
3407
3408 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3409
3410         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3411         * regrename.c: Ditto.