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