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