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